Implementation of Inter-Asterisk eXchange Version 2 as specified in RFC 5456. More...

#include "asterisk.h"
#include <sys/mman.h>
#include <dirent.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <netinet/in_systm.h>
#include <netinet/ip.h>
#include <sys/time.h>
#include <signal.h>
#include <netdb.h>
#include <fcntl.h>
#include <sys/stat.h>
#include <regex.h>
#include "asterisk/paths.h"
#include "asterisk/lock.h"
#include "asterisk/frame.h"
#include "asterisk/channel.h"
#include "asterisk/module.h"
#include "asterisk/pbx.h"
#include "asterisk/sched.h"
#include "asterisk/io.h"
#include "asterisk/config.h"
#include "asterisk/cli.h"
#include "asterisk/translate.h"
#include "asterisk/md5.h"
#include "asterisk/crypto.h"
#include "asterisk/acl.h"
#include "asterisk/manager.h"
#include "asterisk/callerid.h"
#include "asterisk/app.h"
#include "asterisk/mwi.h"
#include "asterisk/astdb.h"
#include "asterisk/musiconhold.h"
#include "asterisk/features.h"
#include "asterisk/utils.h"
#include "asterisk/causes.h"
#include "asterisk/localtime.h"
#include "asterisk/dnsmgr.h"
#include "asterisk/devicestate.h"
#include "asterisk/stringfields.h"
#include "asterisk/linkedlists.h"
#include "asterisk/astobj2.h"
#include "asterisk/timing.h"
#include "asterisk/taskprocessor.h"
#include "asterisk/test.h"
#include "asterisk/security_events.h"
#include "asterisk/stasis_endpoints.h"
#include "asterisk/bridge.h"
#include "asterisk/stasis.h"
#include "asterisk/stasis_system.h"
#include "asterisk/stasis_channels.h"
#include "asterisk/format_cache.h"
#include "asterisk/format_compatibility.h"
#include "asterisk/format_cap.h"
#include "iax2/include/iax2.h"
#include "iax2/include/firmware.h"
#include "iax2/include/parser.h"
#include "iax2/include/provision.h"
#include "iax2/include/codec_pref.h"
#include "iax2/include/format_compatibility.h"
#include "iax2/include/netsock.h"
#include "jitterbuf.h"

Data Structures
struct	active_list

struct	addr_range

struct	call_number_pool

struct	chan_iax2_pvt

struct	create_addr_info

struct	dpcache

struct	dpreq_data

struct	dynamic_list

struct	iax2_context

struct	iax2_dpcache

struct	iax2_peer

struct	iax2_pkt_buf

struct	iax2_registry

struct	iax2_thread

struct	iax2_trunk_peer

struct	iax2_user

struct	iax_rr

struct	idle_list

struct	parsed_dial_string

struct	peercnt

struct	registrations

struct	show_peers_context
	Used in the sip_show_peers functions to pass parameters. More...

struct	chan_iax2_pvt::signaling_queue

struct	signaling_queue_entry

struct	tpeers

Macros
#define	ACN_FORMAT1 "%-20.25s %4u %4d %4d %5d %3d %5d %4d %6d %4d %4d %5d %3d %5d %4d %6d %s%s %4s%s\n"

#define	ACN_FORMAT2 "%s %u %d %d %d %d %d %d %d %d %d %d %d %d %d %d %s%s %s%s\n"

#define	CALLNO_ENTRY_GET_CALLNO(a) ((a) & 0x7FFF)

#define	CALLNO_ENTRY_IS_VALIDATED(a) ((a) & 0x8000)

#define	CALLNO_ENTRY_SET_VALIDATED(a) ((a) \|= 0x8000)

#define	CALLNO_ENTRY_TO_PTR(a) ((void *)(unsigned long)(a))

#define	CALLNO_TO_PTR(a) ((void *)(unsigned long)(a))

#define	CALLTOKEN_HASH_FORMAT "%s%u%d" /* address + port + ts + randomcalldata */

#define	CALLTOKEN_IE_FORMAT "%u?%s" /* time + ? + (40 char hash) */

#define	DEBUG_SCHED_MULTITHREAD

#define	DEBUG_SUPPORT

#define	DEFAULT_CONTEXT "default"

#define	DEFAULT_DROP 3

#define	DEFAULT_FREQ_NOTOK 10 * 1000 /* How often to check, if the host is down... */

#define	DEFAULT_FREQ_OK 60 * 1000 /* How often to check for the host to be up */

#define	DEFAULT_MAX_THREAD_COUNT 100

#define	DEFAULT_MAXMS 2000 /* Must be faster than 2 seconds by default */

#define	DEFAULT_RETRY_TIME 1000

#define	DEFAULT_THREAD_COUNT 10

#define	DEFAULT_TRUNKDATA 640 * 10

#define	FORMAT "%-15.15s %-20.20s %-15.15s %-15.15s %-5.5s %-5.10s\n"

#define	FORMAT "%-45.45s %-6.6s %-10.10s %-45.45s %8d %s\n"

#define	FORMAT "%-20.20s %-40.40s %-10.10s %5.5d/%5.5d %5.5d/%5.5d %-5.5dms %-4.4dms %-4.4dms %-6.6s %s%s %3s%s\n"

#define	FORMAT2 "%-15.15s %-20.20s %-15.15d %-15.15s %-5.5s %-5.10s\n"

#define	FORMAT2 "%-45.45s %-6.6s %-10.10s %-45.45s %8.8s %s\n"

#define	FORMAT2 "%-20.20s %-40.40s %-10.10s %-11.11s %-11.11s %-7.7s %-6.6s %-6.6s %s %s %9s\n"

#define	FORMATB "%-20.20s %-40.40s %-10.10s %5.5d/%5.5d %5.5d/%5.5d [Native Bridged to ID=%5.5d]\n"

#define	GAMMA (0.01)

#define	IAX2_TRUNK_PREFACE (sizeof(struct iax_frame) + sizeof(struct ast_iax2_meta_hdr) + sizeof(struct ast_iax2_meta_trunk_hdr))

#define	IAX_ALLOWFWDOWNLOAD (uint64_t)(1LLU << 26)

#define	IAX_ALREADYGONE (uint64_t)(1LLU << 9)

#define	IAX_CALLENCRYPTED(pvt) (ast_test_flag64(pvt, IAX_ENCRYPTED) && ast_test_flag64(pvt, IAX_KEYPOPULATED))

#define	IAX_CAPABILITY_FULLBANDWIDTH 0xFFFF

#define	IAX_CAPABILITY_LOWBANDWIDTH

#define	IAX_CAPABILITY_LOWFREE

#define	IAX_CAPABILITY_MEDBANDWIDTH

#define	IAX_CODEC_NOCAP (uint64_t)(1LLU << 16)

#define	IAX_CODEC_NOPREFS (uint64_t)(1LLU << 15)

#define	IAX_CODEC_USER_FIRST (uint64_t)(1LLU << 14)

#define	IAX_DEBUGDIGEST(msg, key)

#define	IAX_DELAYPBXSTART (uint64_t)(1LLU << 25)

#define	IAX_DELME (uint64_t)(1LLU << 1)

#define	IAX_DYNAMIC (uint64_t)(1LLU << 6)

#define	IAX_ENCRYPTED (uint64_t)(1LLU << 12)

#define	IAX_FORCE_ENCRYPT (uint64_t)(1LLU << 30)

#define	IAX_HASCALLERID (uint64_t)(1LLU << 0)

#define	IAX_IMMEDIATE (uint64_t)(1LLU << 27)

#define	IAX_KEYPOPULATED (uint64_t)(1LLU << 13)

#define	IAX_MAXAUTHREQ (uint64_t)(1LLU << 24)

#define	IAX_NOTRANSFER (uint64_t)(1LLU << 4)

#define	IAX_PROVISION (uint64_t)(1LLU << 10)

#define	IAX_QUELCH (uint64_t)(1LLU << 11)

#define	IAX_RECVCONNECTEDLINE (uint64_t)(1LLU << 29)

#define	IAX_RTAUTOCLEAR (uint64_t)(1LLU << 19)

#define	IAX_RTCACHEFRIENDS (uint64_t)(1LLU << 17)

#define	IAX_RTIGNOREREGEXPIRE (uint64_t)(1LLU << 21)

#define	IAX_RTSAVE_SYSNAME (uint64_t)(1LLU << 8)

#define	IAX_RTUPDATE (uint64_t)(1LLU << 18)

#define	IAX_SENDANI (uint64_t)(1LLU << 7)

#define	IAX_SENDCONNECTEDLINE (uint64_t)(1LLU << 28)

#define	IAX_SHRINKCALLERID (uint64_t)(1LLU << 31)

#define	IAX_TEMPONLY (uint64_t)(1LLU << 2)

#define	IAX_TRANSFERMEDIA (uint64_t)(1LLU << 23)

#define	IAX_TRUNK (uint64_t)(1LLU << 3)

#define	IAX_TRUNKTIMESTAMPS (uint64_t)(1LLU << 22)

#define	IAX_USEJITTERBUF (uint64_t)(1LLU << 5)

#define	MARK_IAX_SUBCLASS_TX 0x8000

#define	MAX_JITTER_BUFFER 50

#define	MAX_PEER_BUCKETS 563

#define	MAX_RETRY_TIME 10000

#define	MAX_TIMESTAMP_SKEW 160

#define	MAX_TRUNK_MTU 1240
	Maximum transmission unit for the UDP packet in the trunk not to be fragmented. This is based on 1516 - ethernet - ip - udp - iax minus one g711 frame = 1240. More...

#define	MAX_TRUNKDATA 640 * 200

#define	MAX_USER_BUCKETS MAX_PEER_BUCKETS

#define	MEMORY_SIZE 100

#define	MIN_JITTER_BUFFER 10

#define	MIN_RETRY_TIME 100

#define	MIN_REUSE_TIME 60 /* Don't reuse a call number within 60 seconds */

#define	PEERS_FORMAT "%-15.15s %-40.40s %s %-40.40s %-6s%s %s %-11s %-32.32s\n"

#define	PEERS_FORMAT2 "%-15.15s %-40.40s %s %-40.40s %-9s %s %-11s %-32.32s\n"

#define	PTR_TO_CALLNO(a) ((unsigned short)(unsigned long)(a))

#define	PTR_TO_CALLNO_ENTRY(a) ((uint16_t)(unsigned long)(a))

#define	SCHED_MULTITHREADED

#define	schedule_action(func, data) __schedule_action(func, data, __PRETTY_FUNCTION__)

#define	TRUNK_CALL_START (IAX_MAX_CALLS / 2)

#define	TS_GAP_FOR_JB_RESYNC 5000

Typedefs
typedef uint16_t	callno_entry

Enumerations
enum	{ CACHE_FLAG_EXISTS = (1 << 0), CACHE_FLAG_NONEXISTENT = (1 << 1), CACHE_FLAG_CANEXIST = (1 << 2), CACHE_FLAG_PENDING = (1 << 3), CACHE_FLAG_TIMEOUT = (1 << 4), CACHE_FLAG_TRANSMITTED = (1 << 5), CACHE_FLAG_UNKNOWN = (1 << 6), CACHE_FLAG_MATCHMORE = (1 << 7) }

enum	{ NEW_PREVENT = 0, NEW_ALLOW = 1, NEW_FORCE = 2, NEW_ALLOW_CALLTOKEN_VALIDATED = 3 }

enum	callno_type { CALLNO_TYPE_NORMAL, CALLNO_TYPE_TRUNK }

enum	calltoken_peer_enum { CALLTOKEN_DEFAULT = 0, CALLTOKEN_YES = 1, CALLTOKEN_AUTO = 2, CALLTOKEN_NO = 3 }
	Call token validation settings. More...

enum	iax2_state { IAX_STATE_STARTED = (1 << 0), IAX_STATE_AUTHENTICATED = (1 << 1), IAX_STATE_TBD = (1 << 2) }

enum	iax2_thread_iostate { IAX_IOSTATE_IDLE, IAX_IOSTATE_READY, IAX_IOSTATE_PROCESSING, IAX_IOSTATE_SCHEDREADY }

enum	iax2_thread_type { IAX_THREAD_TYPE_POOL, IAX_THREAD_TYPE_DYNAMIC }

enum	iax_reg_state { REG_STATE_UNREGISTERED = 0, REG_STATE_REGSENT, REG_STATE_AUTHSENT, REG_STATE_REGISTERED, REG_STATE_REJECTED, REG_STATE_TIMEOUT, REG_STATE_NOAUTH }

enum	iax_transfer_state { TRANSFER_NONE = 0, TRANSFER_BEGIN, TRANSFER_READY, TRANSFER_RELEASED, TRANSFER_PASSTHROUGH, TRANSFER_MBEGIN, TRANSFER_MREADY, TRANSFER_MRELEASED, TRANSFER_MPASSTHROUGH, TRANSFER_MEDIA, TRANSFER_MEDIAPASS }

Functions
static void	__attempt_transmit (const void *data)

static void	__auth_reject (const void *nothing)

static void	__auto_congest (const void *nothing)

static void	__auto_hangup (const void *nothing)

static int	__do_deliver (void *data)

static void	__expire_registry (const void *data)

static int	__find_callno (unsigned short callno, unsigned short dcallno, struct ast_sockaddr *addr, int new, int sockfd, int return_locked, int check_dcallno)

static void	__get_from_jb (const void *p)

static void	__iax2_do_register_s (const void *data)

static void	__iax2_poke_noanswer (const void *data)

static void	__iax2_poke_peer_s (const void *data)

static int	__iax2_show_peers (int fd, int total, struct mansession s, const int argc, const char *const argv[])

static void	__reg_module (void)

static int	__schedule_action (void(func)(const void data), const void data, const char funcname)

static int	__send_command (struct chan_iax2_pvt i, char type, int command, unsigned int ts, const unsigned char data, int datalen, int seqno, int now, int transfer, int final)

static void	__send_lagrq (const void *data)

static void	__send_ping (const void *data)

static int	__unload_module (void)

static void	__unreg_module (void)

static void	_iax2_show_peers_one (int fd, struct mansession s, struct show_peers_context cont, struct iax2_peer *peer)

static int	acf_channel_read (struct ast_channel chan, const char funcname, char preparse, char buf, size_t buflen)

static int	acf_iaxvar_read (struct ast_channel chan, const char cmd, char data, char buf, size_t len)

static int	acf_iaxvar_write (struct ast_channel chan, const char cmd, char data, const char value)

static void	acl_change_stasis_cb (void data, struct stasis_subscription sub, struct stasis_message *message)

static void	acl_change_stasis_subscribe (void)

static void	acl_change_stasis_unsubscribe (void)

static int	add_calltoken_ignore (const char *addr)

static void	add_empty_calltoken_ie (struct chan_iax2_pvt pvt, struct iax_ie_data ied)

static int	addr_range_cmp_cb (void obj, void arg, int flags)

static int	addr_range_delme_cb (void obj, void arg, int flags)

static int	addr_range_hash_cb (const void *obj, const int flags)

static int	addr_range_match_address_cb (void obj, void arg, int flags)

static int	apply_context (struct iax2_context con, const char context)

static int	ast_cli_netstats (struct mansession *s, int fd, int limit_fmt)

static struct ast_channel *	ast_iax2_new (int callno, int state, iax2_format capability, struct iax2_codec_pref prefs, const struct ast_assigned_ids assignedids, const struct ast_channel *requestor, unsigned int cachable)
	Create new call, interface with the PBX core. More...

struct ast_module *	AST_MODULE_SELF_SYM (void)

static int	attempt_transmit (const void *data)

static int	auth_fail (int callno, int failcode)

static int	auth_reject (const void *data)

static int	authenticate (const char challenge, const char secret, const char keyn, int authmethods, struct iax_ie_data ied, struct ast_sockaddr addr, struct chan_iax2_pvt pvt)

static int	authenticate_reply (struct chan_iax2_pvt p, struct ast_sockaddr addr, struct iax_ies ies, const char override, const char *okey)

static int	authenticate_request (int call_num)

static int	authenticate_verify (struct chan_iax2_pvt p, struct iax_ies ies)

static int	auto_congest (const void *data)

static int	auto_hangup (const void *data)

static void	build_callno_limits (struct ast_variable *v)

static struct iax2_context *	build_context (const char *context)

static void	build_ecx_key (const unsigned char digest, struct chan_iax2_pvt pvt)

static void	build_encryption_keys (const unsigned char digest, struct chan_iax2_pvt pvt)

static struct iax2_peer *	build_peer (const char name, struct ast_variable v, struct ast_variable *alt, int temponly)
	Create peer structure based on configuration. More...

static void	build_rand_pad (unsigned char *buf, ssize_t len)

static struct iax2_user *	build_user (const char name, struct ast_variable v, struct ast_variable *alt, int temponly)
	Create in-memory user structure from configuration. More...

static int	cache_get_callno_locked (const char *data)

static unsigned int	calc_rxstamp (struct chan_iax2_pvt *p, unsigned int offset)

static unsigned int	calc_timestamp (struct chan_iax2_pvt p, unsigned int ts, struct ast_frame f)

static unsigned int	calc_txpeerstamp (struct iax2_trunk_peer tpeer, int sampms, struct timeval now)

static int	calltoken_required (struct ast_sockaddr addr, const char name, int subclass)

static int	check_access (int callno, struct ast_sockaddr addr, struct iax_ies ies)

static int	check_provisioning (struct ast_sockaddr addr, int sockfd, char si, unsigned int ver)

static int	check_srcaddr (struct ast_sockaddr *addr)
	Check if address can be used as packet source. More...

static void	cleanup_thread_list (void *head)

static struct ast_format *	codec_choose_from_prefs (struct iax2_codec_pref pref, struct ast_format_cap cap)

static int	complete_dpreply (struct chan_iax2_pvt pvt, struct iax_ies ies)

static char *	complete_iax2_peers (const char line, const char word, int pos, int state, uint64_t flags)

static char *	complete_iax2_unregister (const char line, const char word, int pos, int state)

static int	complete_transfer (int callno, struct iax_ies *ies)

static unsigned char	compress_subclass (iax2_format subclass)

static void	construct_rr (struct chan_iax2_pvt pvt, struct iax_ie_data iep)

static int	create_addr (const char peername, struct ast_channel c, struct ast_sockaddr addr, struct create_addr_info cai)

static int	create_callno_pools (void)

static int	decode_frame (ast_aes_decrypt_key dcx, struct ast_iax2_full_hdr fh, struct ast_frame f, int datalen)

static int	decrypt_frame (int callno, struct ast_iax2_full_hdr fh, struct ast_frame f, int *datalen)

static void	defer_full_frame (struct iax2_thread from_here, struct iax2_thread to_here)
	Queue the last read full frame for processing by a certain thread. More...

static void	delete_users (void)

static void	dp_lookup (int callno, const char context, const char callednum, const char *callerid, int skiplock)

static void *	dp_lookup_thread (void *data)

static void	encmethods_to_str (int e, struct ast_str **buf)

static int	encrypt_frame (ast_aes_encrypt_key ecx, struct ast_iax2_full_hdr fh, unsigned char poo, int datalen)

static int	expire_registry (const void *data)

static struct iax2_dpcache *	find_cache (struct ast_channel chan, const char data, const char context, const char exten, int priority)

static int	find_callno (unsigned short callno, unsigned short dcallno, struct ast_sockaddr *addr, int new, int sockfd, int full_frame)

static int	find_callno_locked (unsigned short callno, unsigned short dcallno, struct ast_sockaddr *addr, int new, int sockfd, int full_frame)

static struct iax2_thread *	find_idle_thread (void)

static struct iax2_peer *	find_peer (const char *name, int realtime)

static struct iax2_trunk_peer *	find_tpeer (struct ast_sockaddr *addr, int fd)

static struct iax2_user *	find_user (const char *name)

static int	firmware_show_callback (struct ast_iax2_firmware_header header, void user_data)

static unsigned int	fix_peerts (struct timeval *rxtrunktime, int callno, unsigned int ts)

static void	free_context (struct iax2_context *con)

static void	free_signaling_queue_entry (struct signaling_queue_entry *s)

static int	function_iaxpeer (struct ast_channel chan, const char cmd, char data, char buf, size_t len)

static int	get_auth_methods (const char *value)

static int	get_encrypt_methods (const char *s)

static int	get_from_jb (const void *p)

static int	get_unused_callno (enum callno_type type, int validated, callno_entry *entry)

static int	handle_call_token (struct ast_iax2_full_hdr fh, struct iax_ies ies, struct ast_sockaddr *addr, int fd)

static char *	handle_cli_iax2_provision (struct ast_cli_entry e, int cmd, struct ast_cli_args a)

static char *	handle_cli_iax2_prune_realtime (struct ast_cli_entry e, int cmd, struct ast_cli_args a)

static char *	handle_cli_iax2_reload (struct ast_cli_entry e, int cmd, struct ast_cli_args a)

static char *	handle_cli_iax2_set_debug (struct ast_cli_entry e, int cmd, struct ast_cli_args a)

static char *	handle_cli_iax2_set_debug_jb (struct ast_cli_entry e, int cmd, struct ast_cli_args a)

static char *	handle_cli_iax2_set_debug_trunk (struct ast_cli_entry e, int cmd, struct ast_cli_args a)

static char *	handle_cli_iax2_set_mtu (struct ast_cli_entry e, int cmd, struct ast_cli_args a)
	Set trunk MTU from CLI. More...

static char *	handle_cli_iax2_show_cache (struct ast_cli_entry e, int cmd, struct ast_cli_args a)

static char *	handle_cli_iax2_show_callno_limits (struct ast_cli_entry e, int cmd, struct ast_cli_args a)

static char *	handle_cli_iax2_show_channels (struct ast_cli_entry e, int cmd, struct ast_cli_args a)

static char *	handle_cli_iax2_show_firmware (struct ast_cli_entry e, int cmd, struct ast_cli_args a)

static char *	handle_cli_iax2_show_netstats (struct ast_cli_entry e, int cmd, struct ast_cli_args a)

static char *	handle_cli_iax2_show_peer (struct ast_cli_entry e, int cmd, struct ast_cli_args a)
	Show one peer in detail. More...

static char *	handle_cli_iax2_show_peers (struct ast_cli_entry e, int cmd, struct ast_cli_args a)

static char *	handle_cli_iax2_show_registry (struct ast_cli_entry e, int cmd, struct ast_cli_args a)

static char *	handle_cli_iax2_show_stats (struct ast_cli_entry e, int cmd, struct ast_cli_args a)

static char *	handle_cli_iax2_show_threads (struct ast_cli_entry e, int cmd, struct ast_cli_args a)

static char *	handle_cli_iax2_show_users (struct ast_cli_entry e, int cmd, struct ast_cli_args a)

static char *	handle_cli_iax2_test_losspct (struct ast_cli_entry e, int cmd, struct ast_cli_args a)

static char *	handle_cli_iax2_unregister (struct ast_cli_entry e, int cmd, struct ast_cli_args a)

static void	handle_deferred_full_frames (struct iax2_thread *thread)
	Handle any deferred full frames for this thread. More...

static int	handle_error (void)

static int	iax2_ack_registry (struct iax_ies ies, struct ast_sockaddr addr, int callno)
	Acknowledgment received for OUR registration. More...

static int attribute_pure	iax2_allow_new (int frametype, int subclass, int inbound)

static int	iax2_answer (struct ast_channel *c)

static int	iax2_append_register (const char hostname, const char username, const char secret, const char porta)

static int	iax2_call (struct ast_channel c, const char dest, int timeout)

static int	iax2_canmatch (struct ast_channel chan, const char context, const char exten, int priority, const char callerid, const char *data)
	part of the IAX2 dial plan switch interface More...

static iax2_format	iax2_codec_choose (struct iax2_codec_pref *pref, iax2_format formats)

static unsigned int	iax2_datetime (const char *tz)

static int	iax2_delete_from_sched (const void *data)

static void	iax2_destroy (int callno)

static void	iax2_destroy_helper (struct chan_iax2_pvt *pvt)

static int	iax2_devicestate (const char *data)
	Part of the device state notification system —. More...

static int	iax2_digit_begin (struct ast_channel *c, char digit)

static int	iax2_digit_end (struct ast_channel *c, char digit, unsigned int duration)

static int	iax2_do_register (struct iax2_registry *reg)

static int	iax2_do_register_s (const void *data)

static void	iax2_dprequest (struct iax2_dpcache *dp, int callno)

static void *	iax2_dup_variable_datastore (void *)

static int	iax2_exec (struct ast_channel chan, const char context, const char exten, int priority, const char callerid, const char *data)
	Execute IAX2 dialplan switch. More...

static int	iax2_exists (struct ast_channel chan, const char context, const char exten, int priority, const char callerid, const char *data)
	Part of the IAX2 switch interface. More...

static int	iax2_fixup (struct ast_channel oldchannel, struct ast_channel newchan)

static void	iax2_frame_free (struct iax_frame *fr)

static void	iax2_free_variable_datastore (void *)

const char *	iax2_getformatname (iax2_format format)
	iax2 wrapper function for ast_getformatname More...

static const char *	iax2_getformatname_multiple (iax2_format format, struct ast_str **codec_buf)

static int	iax2_getpeername (struct ast_sockaddr addr, char *host, int len)

static int	iax2_getpeertrunk (struct ast_sockaddr addr)

static int	iax2_hangup (struct ast_channel *c)

static int	iax2_indicate (struct ast_channel c, int condition, const void data, size_t datalen)

static int	iax2_is_control_frame_allowed (int subtype)

static int	iax2_key_rotate (const void *vpvt)

static int	iax2_lock_callno_unless_destroyed (int callno)

static void	iax2_lock_owner (int callno)

static int	iax2_matchmore (struct ast_channel chan, const char context, const char exten, int priority, const char callerid, const char *data)
	Part of the IAX2 Switch interface. More...

static int	iax2_parse_allow_disallow (struct iax2_codec_pref pref, iax2_format formats, const char *list, int allowing)

static int	iax2_poke_noanswer (const void *data)

static int	iax2_poke_peer (struct iax2_peer *peer, int heldcall)

static int	iax2_poke_peer_cb (void obj, void arg, int flags)

static int	iax2_poke_peer_s (const void *data)

static int	iax2_predestroy (int callno)

static void *	iax2_process_thread (void *data)

static void	iax2_process_thread_cleanup (void *data)

static int	iax2_prov_app (struct ast_channel chan, const char data)

static int	iax2_provision (struct ast_sockaddr end, int sockfd, const char dest, const char *template, int force)

static void	iax2_publish_registry (const char username, const char domain, const char status, const char cause)

static int	iax2_queryoption (struct ast_channel c, int option, void data, int *datalen)

static int	iax2_queue_frame (int callno, struct ast_frame *f)
	Queue a frame to a call's owning asterisk channel. More...

static int	iax2_queue_hangup (int callno)
	Queue a hangup frame on the ast_channel owner. More...

static int	iax2_queue_hold (int callno, const char *musicclass)
	Queue a hold frame on the ast_channel owner. More...

static int	iax2_queue_unhold (int callno)
	Queue an unhold frame on the ast_channel owner. More...

static struct ast_frame *	iax2_read (struct ast_channel *c)

static int	iax2_register (const char *value, int lineno)

static struct ast_channel *	iax2_request (const char type, struct ast_format_cap cap, const struct ast_assigned_ids assignedids, const struct ast_channel requestor, const char data, int cause)

static int	iax2_sched_add (struct ast_sched_context sched, int when, ast_sched_cb callback, const void data)

static int	iax2_sched_replace (int id, struct ast_sched_context con, int when, ast_sched_cb callback, const void data)

static int	iax2_send (struct chan_iax2_pvt pvt, struct ast_frame f, unsigned int ts, int seqno, int now, int transfer, int final)

static int	iax2_sendhtml (struct ast_channel c, int subclass, const char data, int datalen)

static int	iax2_sendimage (struct ast_channel c, struct ast_frame img)

static int	iax2_sendtext (struct ast_channel c, const char text)

static int	iax2_setoption (struct ast_channel c, int option, void data, int datalen)

static int	iax2_transfer (struct ast_channel c, const char dest)

static int	iax2_transmit (struct iax_frame *fr)

static int	iax2_trunk_expired (struct iax2_trunk_peer tpeer, struct timeval now)

static int	iax2_trunk_queue (struct chan_iax2_pvt pvt, struct iax_frame fr)

static int	iax2_vnak (int callno)

static int	iax2_write (struct ast_channel c, struct ast_frame f)

static void	iax_debug_output (const char *data)

static void	iax_error_output (const char *data)

static void	iax_outputframe (struct iax_frame f, struct ast_iax2_full_hdr fhi, int rx, struct ast_sockaddr *addr, int datalen)

static ast_callid	iax_pvt_callid_get (int callno)

static void	iax_pvt_callid_new (int callno)

static void	iax_pvt_callid_set (int callno, ast_callid callid)

static struct iax_frame *	iaxfrdup2 (struct iax_frame *fr)

static void	insert_idle_thread (struct iax2_thread *thread)

static void	jb_debug_output (const char *fmt,...)

static void	jb_error_output (const char *fmt,...)

static void	jb_warning_output (const char *fmt,...)

static int	load_module (void)
	Load the module. More...

static int	load_objects (void)

static void	log_jitterstats (unsigned short callno)

static int	make_trunk (unsigned short callno, int locked)

static int	manager_iax2_show_netstats (struct mansession s, const struct message m)

static int	manager_iax2_show_peer_list (struct mansession s, const struct message m)
	callback to display iax peers in manager format More...

static int	manager_iax2_show_peers (struct mansession s, const struct message m)
	callback to display iax peers in manager More...

static int	manager_iax2_show_registry (struct mansession s, const struct message m)

static int	match (struct ast_sockaddr addr, unsigned short callno, unsigned short dcallno, const struct chan_iax2_pvt cur, int check_dcallno)

static void	memcpy_decrypt (unsigned char dst, const unsigned char src, int len, ast_aes_decrypt_key *dcx)

static void	memcpy_encrypt (unsigned char dst, const unsigned char src, int len, ast_aes_encrypt_key *ecx)

static void	merge_encryption (struct chan_iax2_pvt *p, unsigned int enc)

static int	network_change_sched_cb (const void *data)

static void	network_change_stasis_cb (void data, struct stasis_subscription sub, struct stasis_message *message)

static void	network_change_stasis_subscribe (void)

static void	network_change_stasis_unsubscribe (void)

static void *	network_thread (void *ignore)

static struct chan_iax2_pvt *	new_iax (struct ast_sockaddr addr, const char host)

static void	parse_dial_string (char data, struct parsed_dial_string pds)
	Parses an IAX dial string into its component parts. More...

static int	peer_cmp_cb (void obj, void arg, int flags)

static int	peer_delme_cb (void obj, void arg, int flags)

static void	peer_destructor (void *obj)

static int	peer_hash_cb (const void *obj, const int flags)

static struct iax2_peer *	peer_ref (struct iax2_peer *peer)

static int	peer_set_sock_cb (void obj, void arg, int flags)

static int	peer_set_srcaddr (struct iax2_peer peer, const char srcaddr)
	Parse the "sourceaddress" value, lookup in netsock list and set peer's sockfd. Defaults to defaultsockfd if not found. More...

static int	peer_status (struct iax2_peer peer, char status, int statuslen)
	peer_status: Report Peer status in character string More...

static struct iax2_peer *	peer_unref (struct iax2_peer *peer)

static int	peercnt_add (struct ast_sockaddr *addr)

static int	peercnt_cmp_cb (void obj, void arg, int flags)

static int	peercnt_hash_cb (const void *obj, const int flags)

static void	peercnt_modify (unsigned char reg, uint16_t limit, struct ast_sockaddr *sockaddr)

static void	peercnt_remove (struct peercnt *peercnt)

static int	peercnt_remove_by_addr (struct ast_sockaddr *addr)

static int	peercnt_remove_cb (const void *obj)

static void	poke_all_peers (void)

static int	prune_addr_range_cb (void obj, void arg, int flags)

static void	prune_peers (void)

static void	prune_users (void)

static int	pvt_cmp_cb (void obj, void arg, int flags)

static void	pvt_destructor (void *obj)

static int	pvt_hash_cb (const void *obj, const int flags)

static int	queue_signalling (struct chan_iax2_pvt pvt, struct ast_frame f)
	All frames other than that of type AST_FRAME_IAX must be held until we have received a destination call number. More...

static int	raw_hangup (struct ast_sockaddr *addr, unsigned short src, unsigned short dst, int sockfd)

static struct iax2_peer *	realtime_peer (const char peername, struct ast_sockaddr addr)

static void	realtime_update_peer (const char peername, struct ast_sockaddr sockaddr, time_t regtime)

static struct iax2_user *	realtime_user (const char username, struct ast_sockaddr addr)

static void	reg_source_db (struct iax2_peer *p)

static void	register_peer_exten (struct iax2_peer *peer, int onoff)

static int	register_verify (int callno, struct ast_sockaddr addr, struct iax_ies ies)
	Verify inbound registration. More...

static int	registry_authrequest (int callno)

static int	registry_rerequest (struct iax_ies ies, int callno, struct ast_sockaddr addr)

static char *	regstate2str (int regstate)

static int	reload (void)

static int	reload_config (int forced_reload)

static void	remove_by_peercallno (struct chan_iax2_pvt *pvt)

static void	remove_by_transfercallno (struct chan_iax2_pvt *pvt)

static int	replace_callno (const void *obj)

static void	requirecalltoken_mark_auto (const char *name, int subclass)

static void	resend_with_token (int callno, struct iax_frame f, const char newtoken)

static void	save_osptoken (struct iax_frame fr, struct iax_ies ies)

static void	save_rr (struct iax_frame fr, struct iax_ies ies)

static void	sched_delay_remove (struct ast_sockaddr *addr, callno_entry entry)

static int	schedule_delivery (struct iax_frame fr, int updatehistory, int fromtrunk, unsigned int tsout)

static int	scheduled_destroy (const void *vid)

static int	send_apathetic_reply (unsigned short callno, unsigned short dcallno, struct ast_sockaddr addr, int command, int ts, unsigned char seqno, int sockfd, struct iax_ie_data ied)

static int	send_command (struct chan_iax2_pvt , char, int, unsigned int, const unsigned char , int, int)

static int	send_command_final (struct chan_iax2_pvt , char, int, unsigned int, const unsigned char , int, int)

static int	send_command_immediate (struct chan_iax2_pvt , char, int, unsigned int, const unsigned char , int, int)

static int	send_command_locked (unsigned short callno, char, int, unsigned int, const unsigned char *, int, int)

static int	send_command_transfer (struct chan_iax2_pvt , char, int, unsigned int, const unsigned char , int)

static int	send_lagrq (const void *data)

static int	send_packet (struct iax_frame *f)

static int	send_ping (const void *data)

static void	send_signaling (struct chan_iax2_pvt *pvt)
	This function must be called once we are sure the other side has given us a call number. All signaling is held here until that point. More...

static int	send_trunk (struct iax2_trunk_peer tpeer, struct timeval now)

static int	set_config (const char *config_file, int reload, int forced)
	Load configuration. More...

static void	set_config_destroy (void)

static void	set_hangup_source_and_cause (int callno, unsigned char causecode)

static void	set_peercnt_limit (struct peercnt *peercnt)

static int	set_peercnt_limit_all_cb (void obj, void arg, int flags)

static void	signal_condition (ast_mutex_t lock, ast_cond_t cond)

static int	socket_process (struct iax2_thread *thread)

static int	socket_process_helper (struct iax2_thread *thread)

static int	socket_process_meta (int packet_len, struct ast_iax2_meta_hdr meta, struct ast_sockaddr addr, int sockfd, struct iax_frame *fr)

static int	socket_read (int id, int fd, short events, void cbdata)

static void	spawn_dp_lookup (int callno, const char context, const char callednum, const char *callerid)

static int	start_network_thread (void)

static void	stop_stuff (int callno)

static void	store_by_peercallno (struct chan_iax2_pvt *pvt)

static void	store_by_transfercallno (struct chan_iax2_pvt *pvt)

static int	timing_read (int id, int fd, short events, void cbdata)

static int	transfercallno_pvt_cmp_cb (void obj, void arg, int flags)

static int	transfercallno_pvt_hash_cb (const void *obj, const int flags)

static int	transmit_frame (void *data)

static int	transmit_trunk (struct iax_frame f, struct ast_sockaddr addr, int sockfd)

static int	try_transfer (struct chan_iax2_pvt pvt, struct iax_ies ies)

static iax2_format	uncompress_subclass (unsigned char csub)

static void	unlink_peer (struct iax2_peer *peer)

static int	unload_module (void)

static void	unwrap_timestamp (struct iax_frame *fr)

static void	update_jbsched (struct chan_iax2_pvt *pvt)

static int	update_packet (struct iax_frame *f)

static int	update_registry (struct ast_sockaddr addr, int callno, char devtype, int fd, unsigned short refresh)

static int	user_cmp_cb (void obj, void arg, int flags)

static int	user_delme_cb (void obj, void arg, int flags)

static void	user_destructor (void *obj)

static int	user_hash_cb (const void *obj, const int flags)

static struct iax2_user *	user_unref (struct iax2_user *user)

static void	vnak_retransmit (int callno, int last)

static int	wait_for_peercallno (struct chan_iax2_pvt *pvt)

Variables
static struct ast_module_info	__mod_info = { .name = AST_MODULE, .flags = AST_MODFLAG_LOAD_ORDER , .description = "Inter Asterisk eXchange (Ver 2)" , .key = "This paragraph is copyright (c) 2006 by Digium, Inc. \In order for your module to load, it must return this \key via a function called \"key\". Any code which \includes this paragraph must be licensed under the GNU \General Public License version 2 or later (at your \option). In addition to Digium's general reservations \of rights, Digium expressly reserves the right to \allow other parties to license this paragraph under \different terms. Any use of Digium, Inc. trademarks or \logos (including \"Asterisk\" or \"Digium\") without \express written permission of Digium, Inc. is prohibited.\n" , .buildopt_sum = "30ef0c93b36035ec78c9cfd712d36d9b" , .support_level = AST_MODULE_SUPPORT_CORE, .load = load_module, .unload = unload_module, .reload = reload, .load_pri = AST_MODPRI_CHANNEL_DRIVER, .requires = "dnsmgr", .optional_modules = "res_crypto", }

static char	accountcode [AST_MAX_ACCOUNT_CODE]

static struct stasis_subscription *	acl_change_sub

static struct active_list	active_list = { .first = NULL, .last = NULL, .lock = { PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP , NULL, {1, 0} } , }

static int	adsi = 0

static int	amaflags = 0

static const struct ast_module_info *	ast_module_info = &__mod_info

static int	authdebug = 0

static int	autokill = 0

static struct ao2_container *	callno_limits

static struct call_number_pool	callno_pool

static ast_mutex_t	callno_pool_lock = { PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP , NULL, {1, 0} }

static struct call_number_pool	callno_pool_trunk

static struct ao2_container *	calltoken_ignores

static struct ast_cli_entry	cli_iax2 []

static struct ast_sockaddr	debugaddr

static uint16_t	DEFAULT_MAXCALLNO_LIMIT = 2048

static uint16_t	DEFAULT_MAXCALLNO_LIMIT_NONVAL = 8192

static char	default_parkinglot [AST_MAX_CONTEXT]

static int	defaultsockfd = -1

static int	delayreject = 0

static struct dpcache	dpcache = { .first = NULL, .last = NULL, .lock = { PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP , NULL, {1, 0} } , }

static struct dynamic_list	dynamic_list = { .first = NULL, .last = NULL, .lock = { PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP , NULL, {1, 0} } , }

struct {
struct iax_frame * first

struct iax_frame * last

}	frame_queue [IAX_MAX_CALLS]
	a list of frames that may need to be retransmitted More...

static int	global_max_trunk_mtu

static uint16_t	global_maxcallno

static uint16_t	global_maxcallno_nonval

static int	global_rtautoclear = 120

static struct ast_flags64	globalflags = { 0 }

static int	iax2_authmethods = 0

static iax2_format	iax2_capability = IAX_CAPABILITY_FULLBANDWIDTH

static int	iax2_encryption = 0

static int(*	iax2_regfunk )(const char *username, int onoff) = NULL

static struct ast_switch	iax2_switch

static struct ast_channel_tech	iax2_tech

static const struct ast_datastore_info	iax2_variable_datastore_info

static struct ao2_container *	iax_peercallno_pvts
	Another container of iax2_pvt structures. More...

static struct ao2_container *	iax_transfercallno_pvts
	Another container of iax2_pvt structures. More...

static int	iaxactivethreadcount = 0

static int	iaxcompat = 0

static int	iaxdebug = 0

static int	iaxdefaultdpcache =10 * 60

static int	iaxdefaulttimeout = 5

static int	iaxdynamicthreadcount = 0

static int	iaxdynamicthreadnum = 0

static int	iaxmaxthreadcount = DEFAULT_MAX_THREAD_COUNT

static struct ast_custom_function	iaxpeer_function

static struct chan_iax2_pvt *	iaxs [IAX_MAX_CALLS]
	an array of iax2 pvt structures More...

static ast_mutex_t	iaxsl [ARRAY_LEN(iaxs)]
	chan_iax2_pvt structure locks More...

static int	iaxthreadcount = DEFAULT_THREAD_COUNT

static int	iaxtrunkdebug = 0

static struct ast_custom_function	iaxvar_function

static struct idle_list	idle_list = { .first = NULL, .last = NULL, .lock = { PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP , NULL, {1, 0} } , }

static struct io_context *	io

static int	jittertargetextra = 40

static int	lagrq_time = 10

static char	language [MAX_LANGUAGE] = ""

static int	last_authmethod = 0

static time_t	max_calltoken_delay = 10

static int	max_reg_expire

static int	max_retries = 4

static int	maxauthreq = 3

static int	maxjitterbuffer =1000

static int	maxjitterinterps =10

static int	min_reg_expire

static char	mohinterpret [MAX_MUSICCLASS]

static char	mohsuggest [MAX_MUSICCLASS]

static struct ast_netsock_list *	netsock

static pthread_t	netthreadid = AST_PTHREADT_NULL

static int	network_change_sched_id = -1

static struct stasis_subscription *	network_change_sub

static struct ast_netsock_list *	outsock

static char *	papp = "IAX2Provision"

static struct ao2_container *	peercnts

static struct ao2_container *	peers

static int	ping_time = 21

static struct iax2_codec_pref	prefs_global

struct {
unsigned int cos

unsigned int tos

}	qos = { 0, 0 }

static int	randomcalltokendata

static char	regcontext [AST_MAX_CONTEXT] = ""

static struct registrations	registrations = { .first = NULL, .last = NULL, .lock = { PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP , NULL, {1, 0} } , }

static int	resyncthreshold =1000

static struct ast_sched_context *	sched

static int	srvlookup = 0

static const char	tdesc [] = "Inter Asterisk eXchange Driver (Ver 2)"

static int	test_losspct = 0

static struct ast_timer *	timer

static uint16_t	total_nonval_callno_used = 0

static struct tpeers	tpeers = { .first = NULL, .last = NULL, .lock = { PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP , NULL, {1, 0} } , }

static struct ast_taskprocessor *	transmit_processor

static int	trunk_maxmtu

static int	trunk_nmaxmtu

static int	trunk_timed

static int	trunk_untimed

static int	trunkfreq = 20

static int	trunkmaxsize = MAX_TRUNKDATA

static struct ao2_container *	users

Detailed Description

Implementation of Inter-Asterisk eXchange Version 2 as specified in RFC 5456.

Author: Mark Spencer marks.nosp@m.ter@.nosp@m.digiu.nosp@m.m.co.nosp@m.m

See also

Config_iax

Todo:: Implement musicclass settings for IAX2 devices

Definition in file chan_iax2.c.

Macro Definition Documentation

◆ ACN_FORMAT1

#define ACN_FORMAT1 "%-20.25s %4u %4d %4d %5d %3d %5d %4d %6d %4d %4d %5d %3d %5d %4d %6d %s%s %4s%s\n"

Referenced by ast_cli_netstats().

◆ ACN_FORMAT2

#define ACN_FORMAT2 "%s %u %d %d %d %d %d %d %d %d %d %d %d %d %d %d %s%s %s%s\n"

Referenced by ast_cli_netstats().

◆ CALLNO_ENTRY_GET_CALLNO

#define CALLNO_ENTRY_GET_CALLNO ( a ) ((a) & 0x7FFF)

Definition at line 907 of file chan_iax2.c.

Referenced by __find_callno(), make_trunk(), and replace_callno().

◆ CALLNO_ENTRY_IS_VALIDATED

#define CALLNO_ENTRY_IS_VALIDATED ( a ) ((a) & 0x8000)

Definition at line 906 of file chan_iax2.c.

Referenced by make_trunk(), and replace_callno().

◆ CALLNO_ENTRY_SET_VALIDATED

#define CALLNO_ENTRY_SET_VALIDATED ( a ) ((a) |= 0x8000)

Definition at line 905 of file chan_iax2.c.

Referenced by get_unused_callno().

◆ CALLNO_ENTRY_TO_PTR

#define CALLNO_ENTRY_TO_PTR ( a ) ((void *)(unsigned long)(a))

Definition at line 903 of file chan_iax2.c.

Referenced by __find_callno(), make_trunk(), and sched_delay_remove().

◆ CALLNO_TO_PTR

#define CALLNO_TO_PTR ( a ) ((void *)(unsigned long)(a))

Definition at line 289 of file chan_iax2.c.

Referenced by ast_iax2_new(), iax2_call(), iax2_hangup(), and update_jbsched().

◆ CALLTOKEN_HASH_FORMAT

#define CALLTOKEN_HASH_FORMAT "%s%u%d" /* address + port + ts + randomcalldata */

Referenced by handle_call_token().

◆ CALLTOKEN_IE_FORMAT

#define CALLTOKEN_IE_FORMAT "%u?%s" /* time + ? + (40 char hash) */

Referenced by handle_call_token().

◆ DEBUG_SCHED_MULTITHREAD

#define DEBUG_SCHED_MULTITHREAD

Definition at line 281 of file chan_iax2.c.

◆ DEBUG_SUPPORT

#define DEBUG_SUPPORT

Definition at line 297 of file chan_iax2.c.

◆ DEFAULT_CONTEXT

#define DEFAULT_CONTEXT "default"

Definition at line 316 of file chan_iax2.c.

Referenced by check_access(), and handle_cli_iax2_show_users().

◆ DEFAULT_DROP

#define DEFAULT_DROP 3

Definition at line 295 of file chan_iax2.c.

◆ DEFAULT_FREQ_NOTOK

#define DEFAULT_FREQ_NOTOK 10 * 1000 /* How often to check, if the host is down... */

Definition at line 392 of file chan_iax2.c.

Referenced by build_peer(), handle_response_peerpoke(), and sip_poke_noanswer().

◆ DEFAULT_FREQ_OK

#define DEFAULT_FREQ_OK 60 * 1000 /* How often to check for the host to be up */

Definition at line 391 of file chan_iax2.c.

Referenced by build_peer().

◆ DEFAULT_MAX_THREAD_COUNT

#define DEFAULT_MAX_THREAD_COUNT 100

Definition at line 292 of file chan_iax2.c.

◆ DEFAULT_MAXMS

#define DEFAULT_MAXMS 2000 /* Must be faster than 2 seconds by default */

Definition at line 390 of file chan_iax2.c.

Referenced by build_peer(), reload_config(), and set_config().

◆ DEFAULT_RETRY_TIME

#define DEFAULT_RETRY_TIME 1000

Definition at line 293 of file chan_iax2.c.

Referenced by __find_callno(), and complete_transfer().

◆ DEFAULT_THREAD_COUNT

#define DEFAULT_THREAD_COUNT 10

Definition at line 291 of file chan_iax2.c.

◆ DEFAULT_TRUNKDATA

#define DEFAULT_TRUNKDATA 640 * 10

40ms, uncompressed linear * 10 channels

Definition at line 665 of file chan_iax2.c.

Referenced by iax2_trunk_queue().

◆ FORMAT [1/3]

#define FORMAT "%-15.15s %-20.20s %-15.15s %-15.15s %-5.5s %-5.10s\n"

Referenced by handle_cli_iax2_show_channels(), handle_cli_iax2_show_registry(), and handle_cli_iax2_show_users().

◆ FORMAT [2/3]

#define FORMAT "%-45.45s %-6.6s %-10.10s %-45.45s %8d %s\n"

◆ FORMAT [3/3]

#define FORMAT "%-20.20s %-40.40s %-10.10s %5.5d/%5.5d %5.5d/%5.5d %-5.5dms %-4.4dms %-4.4dms %-6.6s %s%s %3s%s\n"

◆ FORMAT2 [1/3]

#define FORMAT2 "%-15.15s %-20.20s %-15.15d %-15.15s %-5.5s %-5.10s\n"

Referenced by handle_cli_iax2_show_channels(), handle_cli_iax2_show_registry(), and handle_cli_iax2_show_users().

◆ FORMAT2 [2/3]

#define FORMAT2 "%-45.45s %-6.6s %-10.10s %-45.45s %8.8s %s\n"

◆ FORMAT2 [3/3]

#define FORMAT2 "%-20.20s %-40.40s %-10.10s %-11.11s %-11.11s %-7.7s %-6.6s %-6.6s %s %s %9s\n"

◆ FORMATB

#define FORMATB "%-20.20s %-40.40s %-10.10s %5.5d/%5.5d %5.5d/%5.5d [Native Bridged to ID=%5.5d]\n"

◆ GAMMA

#define GAMMA (0.01)

Definition at line 302 of file chan_iax2.c.

◆ IAX2_TRUNK_PREFACE

#define IAX2_TRUNK_PREFACE (sizeof(struct iax_frame) + sizeof(struct ast_iax2_meta_hdr) + sizeof(struct ast_iax2_meta_trunk_hdr))

Definition at line 593 of file chan_iax2.c.

Referenced by iax2_trunk_queue().

◆ IAX_ALLOWFWDOWNLOAD

#define IAX_ALLOWFWDOWNLOAD (uint64_t)(1LLU << 26)

Allow the FWDOWNL command?

Definition at line 478 of file chan_iax2.c.

Referenced by set_config(), and socket_process_helper().

◆ IAX_ALREADYGONE

#define IAX_ALREADYGONE (uint64_t)(1LLU << 9)

Already disconnected

Definition at line 462 of file chan_iax2.c.

Referenced by __do_deliver(), __get_from_jb(), iax2_hangup(), iax2_predestroy(), iax2_write(), pvt_destructor(), and socket_process_helper().

◆ IAX_CALLENCRYPTED

#define IAX_CALLENCRYPTED ( pvt ) (ast_test_flag64(pvt, IAX_ENCRYPTED) && ast_test_flag64(pvt, IAX_KEYPOPULATED))

Definition at line 395 of file chan_iax2.c.

Referenced by acf_channel_read(), iax2_key_rotate(), iax2_send(), and socket_process_helper().

◆ IAX_CAPABILITY_FULLBANDWIDTH

#define IAX_CAPABILITY_FULLBANDWIDTH 0xFFFF

Definition at line 369 of file chan_iax2.c.

Referenced by cache_get_callno_locked(), and set_config().

◆ IAX_CAPABILITY_LOWBANDWIDTH

#define IAX_CAPABILITY_LOWBANDWIDTH

Value:

(IAX_CAPABILITY_MEDBANDWIDTH & \
                     ~AST_FORMAT_G726 &         \
                     ~AST_FORMAT_G726_AAL2 &    \
                     ~AST_FORMAT_ADPCM)

Definition at line 381 of file chan_iax2.c.

Referenced by set_config().

◆ IAX_CAPABILITY_LOWFREE

#define IAX_CAPABILITY_LOWFREE

Value:

(IAX_CAPABILITY_LOWBANDWIDTH & \

~AST_FORMAT_G723)

IAX_CAPABILITY_LOWBANDWIDTH

#define IAX_CAPABILITY_LOWBANDWIDTH

Definition: chan_iax2.c:381

Definition at line 386 of file chan_iax2.c.

◆ IAX_CAPABILITY_MEDBANDWIDTH

#define IAX_CAPABILITY_MEDBANDWIDTH

Definition at line 371 of file chan_iax2.c.

Referenced by set_config().

◆ IAX_CODEC_NOCAP

#define IAX_CODEC_NOCAP (uint64_t)(1LLU << 16)

only consider requested format and ignore capabilities

Definition at line 469 of file chan_iax2.c.

Referenced by build_user(), check_access(), handle_cli_iax2_show_users(), set_config(), and socket_process_helper().

◆ IAX_CODEC_NOPREFS

#define IAX_CODEC_NOPREFS (uint64_t)(1LLU << 15)

Force old behaviour by turning off prefs

Definition at line 468 of file chan_iax2.c.

Referenced by build_user(), check_access(), handle_cli_iax2_show_users(), set_config(), and socket_process_helper().

◆ IAX_CODEC_USER_FIRST

#define IAX_CODEC_USER_FIRST (uint64_t)(1LLU << 14)

are we willing to let the other guy choose the codec?

Definition at line 467 of file chan_iax2.c.

Referenced by build_user(), check_access(), handle_cli_iax2_show_users(), set_config(), and socket_process_helper().

◆ IAX_DEBUGDIGEST

#define IAX_DEBUGDIGEST	(	msg,
		key
	)

Definition at line 398 of file chan_iax2.c.

Referenced by iax2_key_rotate(), and socket_process_helper().

◆ IAX_DELAYPBXSTART

#define IAX_DELAYPBXSTART (uint64_t)(1LLU << 25)

Don't start a PBX on the channel until the peer sends us a response, so that we've achieved a three-way handshake with them before sending voice or anything else

Definition at line 477 of file chan_iax2.c.

Referenced by socket_process_helper().

◆ IAX_DELME

#define IAX_DELME (uint64_t)(1LLU << 1)

Needs to be deleted

Definition at line 454 of file chan_iax2.c.

Referenced by build_peer(), build_user(), peer_delme_cb(), prune_peers(), prune_users(), and user_delme_cb().

◆ IAX_DYNAMIC

#define IAX_DYNAMIC (uint64_t)(1LLU << 6)

dynamic peer

Definition at line 459 of file chan_iax2.c.

Referenced by _iax2_show_peers_one(), build_peer(), function_iaxpeer(), handle_cli_iax2_show_peer(), realtime_peer(), register_verify(), and set_config().

◆ IAX_ENCRYPTED

#define IAX_ENCRYPTED (uint64_t)(1LLU << 12)

Whether we should assume encrypted tx/rx

Definition at line 465 of file chan_iax2.c.

Referenced by authenticate_reply(), authenticate_request(), iax2_send(), and socket_process_helper().

◆ IAX_FORCE_ENCRYPT

#define IAX_FORCE_ENCRYPT (uint64_t)(1LLU << 30)

Forces call encryption, if encryption not possible hangup

Definition at line 482 of file chan_iax2.c.

Referenced by __find_callno(), authenticate_reply(), authenticate_verify(), build_peer(), build_user(), check_access(), create_addr(), iax2_call(), iax2_queryoption(), iax2_setoption(), set_config(), and socket_process_helper().

◆ IAX_HASCALLERID

#define IAX_HASCALLERID (uint64_t)(1LLU << 0)

CallerID has been specified

Definition at line 453 of file chan_iax2.c.

Referenced by build_peer(), build_user(), check_access(), and update_registry().

◆ IAX_IMMEDIATE

#define IAX_IMMEDIATE (uint64_t)(1LLU << 27)

Allow immediate off-hook to extension s

Definition at line 479 of file chan_iax2.c.

Referenced by build_user(), check_access(), and socket_process_helper().

◆ IAX_KEYPOPULATED

#define IAX_KEYPOPULATED (uint64_t)(1LLU << 13)

Whether we have a key populated

Definition at line 466 of file chan_iax2.c.

Referenced by authenticate_reply(), decrypt_frame(), and iax2_send().

◆ IAX_MAXAUTHREQ

#define IAX_MAXAUTHREQ (uint64_t)(1LLU << 24)

Maximum outstanding AUTHREQ restriction is in place

Definition at line 476 of file chan_iax2.c.

Referenced by authenticate_request(), authenticate_verify(), check_access(), and iax2_destroy_helper().

◆ IAX_NOTRANSFER

#define IAX_NOTRANSFER (uint64_t)(1LLU << 4)

Don't native bridge

Definition at line 457 of file chan_iax2.c.

Referenced by __find_callno(), build_peer(), build_user(), check_access(), create_addr(), iax2_key_rotate(), iax2_request(), set_config(), and set_config_destroy().

◆ IAX_PROVISION

#define IAX_PROVISION (uint64_t)(1LLU << 10)

This is a provisioning request

Definition at line 463 of file chan_iax2.c.

Referenced by iax2_provision(), and socket_process_helper().

◆ IAX_QUELCH

#define IAX_QUELCH (uint64_t)(1LLU << 11)

Whether or not we quelch audio

Definition at line 464 of file chan_iax2.c.

Referenced by iax2_write(), and socket_process_helper().

◆ IAX_RECVCONNECTEDLINE

#define IAX_RECVCONNECTEDLINE (uint64_t)(1LLU << 29)

Allow receiving of connected line updates

Definition at line 481 of file chan_iax2.c.

Referenced by __find_callno(), build_peer(), build_user(), check_access(), create_addr(), iax2_request(), set_config(), set_config_destroy(), and socket_process_helper().

◆ IAX_RTAUTOCLEAR

#define IAX_RTAUTOCLEAR (uint64_t)(1LLU << 19)

erase me on expire

Definition at line 472 of file chan_iax2.c.

Referenced by __expire_registry(), handle_cli_iax2_prune_realtime(), realtime_peer(), and set_config().

◆ IAX_RTCACHEFRIENDS

#define IAX_RTCACHEFRIENDS (uint64_t)(1LLU << 17)

let realtime stay till your reload

Definition at line 470 of file chan_iax2.c.

Referenced by __expire_registry(), handle_cli_iax2_prune_realtime(), prune_peers(), prune_users(), realtime_peer(), realtime_user(), set_config(), and update_registry().

◆ IAX_RTIGNOREREGEXPIRE

#define IAX_RTIGNOREREGEXPIRE (uint64_t)(1LLU << 21)

When using realtime, ignore registration expiration

Definition at line 473 of file chan_iax2.c.

Referenced by realtime_peer(), and set_config().

◆ IAX_RTSAVE_SYSNAME

#define IAX_RTSAVE_SYSNAME (uint64_t)(1LLU << 8)

Save Systname on Realtime Updates

Definition at line 461 of file chan_iax2.c.

Referenced by realtime_update_peer(), and set_config().

◆ IAX_RTUPDATE

#define IAX_RTUPDATE (uint64_t)(1LLU << 18)

Send a realtime update

Definition at line 471 of file chan_iax2.c.

Referenced by __expire_registry(), set_config(), and update_registry().

◆ IAX_SENDANI

#define IAX_SENDANI (uint64_t)(1LLU << 7)

Send ANI along with CallerID

Definition at line 460 of file chan_iax2.c.

Referenced by build_peer(), create_addr(), iax2_call(), and iax2_request().

◆ IAX_SENDCONNECTEDLINE

#define IAX_SENDCONNECTEDLINE (uint64_t)(1LLU << 28)

Allow sending of connected line updates

Definition at line 480 of file chan_iax2.c.

Referenced by __find_callno(), build_peer(), build_user(), check_access(), create_addr(), iax2_indicate(), iax2_request(), set_config(), and set_config_destroy().

◆ IAX_SHRINKCALLERID

#define IAX_SHRINKCALLERID (uint64_t)(1LLU << 31)

Turn on and off caller id shrinking

Definition at line 483 of file chan_iax2.c.

Referenced by check_access(), and set_config().

◆ IAX_TEMPONLY

#define IAX_TEMPONLY (uint64_t)(1LLU << 2)

Temporary (realtime)

Definition at line 455 of file chan_iax2.c.

Referenced by __expire_registry(), realtime_peer(), realtime_user(), reg_source_db(), and update_registry().

◆ IAX_TRANSFERMEDIA

#define IAX_TRANSFERMEDIA (uint64_t)(1LLU << 23)

When doing IAX2 transfers, transfer media only

Definition at line 475 of file chan_iax2.c.

Referenced by __find_callno(), build_peer(), build_user(), check_access(), create_addr(), iax2_key_rotate(), iax2_request(), set_config(), and set_config_destroy().

◆ IAX_TRUNK

#define IAX_TRUNK (uint64_t)(1LLU << 3)

Treat as a trunk

Definition at line 456 of file chan_iax2.c.

Referenced by _iax2_show_peers_one(), build_peer(), build_user(), check_access(), create_addr(), handle_cli_iax2_show_peer(), iax2_getpeertrunk(), iax2_request(), iax2_send(), and socket_process_helper().

◆ IAX_TRUNKTIMESTAMPS

#define IAX_TRUNKTIMESTAMPS (uint64_t)(1LLU << 22)

Send trunk timestamps

Definition at line 474 of file chan_iax2.c.

Referenced by iax2_trunk_queue(), send_trunk(), and set_config().

◆ IAX_USEJITTERBUF

#define IAX_USEJITTERBUF (uint64_t)(1LLU << 5)

Use jitter buffer

Definition at line 458 of file chan_iax2.c.

Referenced by __find_callno(), ast_cli_netstats(), build_peer(), build_user(), check_access(), create_addr(), handle_cli_iax2_show_channels(), iax2_request(), log_jitterstats(), schedule_delivery(), set_config(), and set_config_destroy().

◆ MARK_IAX_SUBCLASS_TX

#define MARK_IAX_SUBCLASS_TX 0x8000

Definition at line 673 of file chan_iax2.c.

Referenced by ast_cli_netstats(), handle_cli_iax2_show_channels(), and iax2_send().

◆ MAX_JITTER_BUFFER

#define MAX_JITTER_BUFFER 50

Definition at line 662 of file chan_iax2.c.

◆ MAX_PEER_BUCKETS

#define MAX_PEER_BUCKETS 563

This module will get much higher performance when doing a lot of user and peer lookups if the number of buckets is increased from 1. However, to maintain old behavior for Asterisk 1.4, these are set to 1 by default. When using multiple buckets, search order through these containers is considered random, so you will not be able to depend on the order the entires are specified in iax.conf for matching order.

Definition at line 950 of file chan_iax2.c.

Referenced by load_objects().

◆ MAX_RETRY_TIME

#define MAX_RETRY_TIME 10000

Definition at line 660 of file chan_iax2.c.

Referenced by __attempt_transmit(), iax2_poke_peer(), and iax2_send().

◆ MAX_TIMESTAMP_SKEW

#define MAX_TIMESTAMP_SKEW 160

maximum difference between actual and predicted ts for sending

Definition at line 667 of file chan_iax2.c.

Referenced by calc_timestamp(), and calc_txpeerstamp().

◆ MAX_TRUNK_MTU

#define MAX_TRUNK_MTU 1240

Maximum transmission unit for the UDP packet in the trunk not to be fragmented. This is based on 1516 - ethernet - ip - udp - iax minus one g711 frame = 1240.

Definition at line 311 of file chan_iax2.c.

Referenced by handle_cli_iax2_set_mtu(), and set_config().

◆ MAX_TRUNKDATA

#define MAX_TRUNKDATA 640 * 200

40ms, uncompressed linear * 200 channels

Definition at line 336 of file chan_iax2.c.

Referenced by set_config(), and set_config_destroy().

◆ MAX_USER_BUCKETS

#define MAX_USER_BUCKETS MAX_PEER_BUCKETS

Definition at line 954 of file chan_iax2.c.

Referenced by load_objects().

◆ MEMORY_SIZE

#define MEMORY_SIZE 100

Definition at line 294 of file chan_iax2.c.

◆ MIN_JITTER_BUFFER

#define MIN_JITTER_BUFFER 10

Definition at line 663 of file chan_iax2.c.

◆ MIN_RETRY_TIME

#define MIN_RETRY_TIME 100

Definition at line 659 of file chan_iax2.c.

Referenced by iax2_send().

◆ MIN_REUSE_TIME

#define MIN_REUSE_TIME 60 /* Don't reuse a call number within 60 seconds */

Definition at line 299 of file chan_iax2.c.

Referenced by make_trunk(), and sched_delay_remove().

◆ PEERS_FORMAT

#define PEERS_FORMAT "%-15.15s %-40.40s %s %-40.40s %-6s%s %s %-11s %-32.32s\n"

Definition at line 6843 of file chan_iax2.c.

Referenced by _iax2_show_peers_one().

◆ PEERS_FORMAT2

#define PEERS_FORMAT2 "%-15.15s %-40.40s %s %-40.40s %-9s %s %-11s %-32.32s\n"

Definition at line 6842 of file chan_iax2.c.

Referenced by __iax2_show_peers().

◆ PTR_TO_CALLNO

#define PTR_TO_CALLNO ( a ) ((unsigned short)(unsigned long)(a))

Definition at line 288 of file chan_iax2.c.

Referenced by __auto_congest(), __get_from_jb(), __send_lagrq(), __send_ping(), acf_channel_read(), function_iaxpeer(), iax2_answer(), iax2_call(), iax2_digit_begin(), iax2_digit_end(), iax2_fixup(), iax2_hangup(), iax2_indicate(), iax2_key_rotate(), iax2_prov_app(), iax2_queryoption(), iax2_sendhtml(), iax2_sendimage(), iax2_sendtext(), iax2_setoption(), iax2_transfer(), iax2_write(), and scheduled_destroy().

◆ PTR_TO_CALLNO_ENTRY

#define PTR_TO_CALLNO_ENTRY ( a ) ((uint16_t)(unsigned long)(a))

Definition at line 902 of file chan_iax2.c.

Referenced by replace_callno().

◆ SCHED_MULTITHREADED

#define SCHED_MULTITHREADED

Todo:: XXX The IAX2 channel driver needs its native bridge code converted to the new bridge technology scheme.

Note: The chan_dahdi native bridge code can be used as an example. It also appears that chan_iax2 also has a native transfer check like chan_dahdi to eliminate tromboned calls.; The existing native bridge code is marked with the IAX2_NATIVE_BRIDGING conditional.

Definition at line 277 of file chan_iax2.c.

◆ schedule_action

#define schedule_action	(	func,
		data
	)	__schedule_action(func, data, __PRETTY_FUNCTION__)

Definition at line 1678 of file chan_iax2.c.

Referenced by attempt_transmit(), auth_reject(), auto_congest(), auto_hangup(), expire_registry(), get_from_jb(), iax2_do_register_s(), iax2_poke_noanswer(), iax2_poke_peer_s(), send_lagrq(), and send_ping().

◆ TRUNK_CALL_START

#define TRUNK_CALL_START (IAX_MAX_CALLS / 2)

Definition at line 1174 of file chan_iax2.c.

Referenced by create_callno_pools(), make_trunk(), and replace_callno().

◆ TS_GAP_FOR_JB_RESYNC

#define TS_GAP_FOR_JB_RESYNC 5000

Definition at line 670 of file chan_iax2.c.

Typedef Documentation

◆ callno_entry

typedef uint16_t callno_entry

Definition at line 691 of file chan_iax2.c.

Enumeration Type Documentation

◆ anonymous enum

anonymous enum

Enumerator
CACHE_FLAG_EXISTS	Extension exists
CACHE_FLAG_NONEXISTENT	Extension is nonexistent
CACHE_FLAG_CANEXIST	Extension can exist
CACHE_FLAG_PENDING	Waiting to hear back response
CACHE_FLAG_TIMEOUT	Timed out
CACHE_FLAG_TRANSMITTED	Request transmitted
CACHE_FLAG_UNKNOWN	Timeout
CACHE_FLAG_MATCHMORE	Matchmore

Definition at line 1001 of file chan_iax2.c.

      {
    /*! Extension exists */
    CACHE_FLAG_EXISTS      = (1 << 0),
    /*! Extension is nonexistent */
    CACHE_FLAG_NONEXISTENT = (1 << 1),
    /*! Extension can exist */
    CACHE_FLAG_CANEXIST    = (1 << 2),
    /*! Waiting to hear back response */
    CACHE_FLAG_PENDING     = (1 << 3),
    /*! Timed out */
    CACHE_FLAG_TIMEOUT     = (1 << 4),
    /*! Request transmitted */
    CACHE_FLAG_TRANSMITTED = (1 << 5),
    /*! Timeout */
    CACHE_FLAG_UNKNOWN     = (1 << 6),
    /*! Matchmore */
    CACHE_FLAG_MATCHMORE   = (1 << 7),
 };

◆ anonymous enum

anonymous enum

Enumerator
NEW_PREVENT
NEW_ALLOW
NEW_FORCE
NEW_ALLOW_CALLTOKEN_VALIDATED

Definition at line 2303 of file chan_iax2.c.

      {
    /* do not allow a new call number, only search ones in use for match */
    NEW_PREVENT = 0,
    /* search for match first, then allow a new one to be allocated */
    NEW_ALLOW = 1,
    /* do not search for match, force a new call number */
    NEW_FORCE = 2,
    /* do not search for match, force a new call number.  Signifies call number
     * has been calltoken validated */
    NEW_ALLOW_CALLTOKEN_VALIDATED = 3,
 };

◆ callno_type

enum callno_type

Enumerator
CALLNO_TYPE_NORMAL
CALLNO_TYPE_TRUNK

Definition at line 897 of file chan_iax2.c.

                  {
    CALLNO_TYPE_NORMAL,
    CALLNO_TYPE_TRUNK,
 };

◆ calltoken_peer_enum

enum calltoken_peer_enum

Call token validation settings.

Enumerator
CALLTOKEN_DEFAULT	Default calltoken required unless the ip is in the ignorelist.
CALLTOKEN_YES	Require call token validation.
CALLTOKEN_AUTO	Require call token validation after a successful registration using call token validation occurs.
CALLTOKEN_NO	Do not require call token validation.

Definition at line 491 of file chan_iax2.c.

                          {
    /*! \brief Default calltoken required unless the ip is in the ignorelist */
    CALLTOKEN_DEFAULT = 0,
    /*! \brief Require call token validation. */
    CALLTOKEN_YES = 1,
    /*! \brief Require call token validation after a successful registration
     *         using call token validation occurs. */
    CALLTOKEN_AUTO = 2,
    /*! \brief Do not require call token validation. */
    CALLTOKEN_NO = 3,
 };

◆ iax2_state

enum iax2_state

Enumerator
IAX_STATE_STARTED
IAX_STATE_AUTHENTICATED
IAX_STATE_TBD

Definition at line 441 of file chan_iax2.c.

                 {
    IAX_STATE_STARTED =        (1 << 0),
    IAX_STATE_AUTHENTICATED =  (1 << 1),
    IAX_STATE_TBD =            (1 << 2),
 };

◆ iax2_thread_iostate

enum iax2_thread_iostate

Enumerator
IAX_IOSTATE_IDLE
IAX_IOSTATE_READY
IAX_IOSTATE_PROCESSING
IAX_IOSTATE_SCHEDREADY

Definition at line 1042 of file chan_iax2.c.

                          {
    IAX_IOSTATE_IDLE,
    IAX_IOSTATE_READY,
    IAX_IOSTATE_PROCESSING,
    IAX_IOSTATE_SCHEDREADY,
 };

◆ iax2_thread_type

enum iax2_thread_type

Enumerator
IAX_THREAD_TYPE_POOL
IAX_THREAD_TYPE_DYNAMIC

Definition at line 1049 of file chan_iax2.c.

                       {
    IAX_THREAD_TYPE_POOL,
    IAX_THREAD_TYPE_DYNAMIC,
 };

◆ iax_reg_state

enum iax_reg_state

Enumerator
REG_STATE_UNREGISTERED
REG_STATE_REGSENT
REG_STATE_AUTHSENT
REG_STATE_REGISTERED
REG_STATE_REJECTED
REG_STATE_TIMEOUT
REG_STATE_NOAUTH

Definition at line 616 of file chan_iax2.c.

                    {
    REG_STATE_UNREGISTERED = 0,
    REG_STATE_REGSENT,
    REG_STATE_AUTHSENT,
    REG_STATE_REGISTERED,
    REG_STATE_REJECTED,
    REG_STATE_TIMEOUT,
    REG_STATE_NOAUTH
 };

◆ iax_transfer_state

enum iax_transfer_state

Enumerator
TRANSFER_NONE
TRANSFER_BEGIN
TRANSFER_READY
TRANSFER_RELEASED
TRANSFER_PASSTHROUGH
TRANSFER_MBEGIN
TRANSFER_MREADY
TRANSFER_MRELEASED
TRANSFER_MPASSTHROUGH
TRANSFER_MEDIA
TRANSFER_MEDIAPASS

Definition at line 626 of file chan_iax2.c.

                         {
    TRANSFER_NONE = 0,
    TRANSFER_BEGIN,
    TRANSFER_READY,
    TRANSFER_RELEASED,
    TRANSFER_PASSTHROUGH,
    TRANSFER_MBEGIN,
    TRANSFER_MREADY,
    TRANSFER_MRELEASED,
    TRANSFER_MPASSTHROUGH,
    TRANSFER_MEDIA,
    TRANSFER_MEDIAPASS
 };

Function Documentation

◆ __attempt_transmit()

static void __attempt_transmit ( const void * data )

static

Definition at line 3548 of file chan_iax2.c.

References chan_iax2_pvt::addr, iax_frame::af, AST_CAUSE_DESTINATION_OUT_OF_ORDER, ast_channel_hangupcause_set(), ast_channel_name(), AST_CONTROL_HANGUP, AST_FRAME_CONTROL, AST_FRAME_IAX, AST_LIST_REMOVE, ast_log, ast_mutex_lock, ast_mutex_unlock, ast_sockaddr_stringify_addr(), iax_frame::callno, chan_iax2_pvt::error, iax_frame::final, frame_queue, ast_frame::frametype, iax2_destroy(), iax2_frame_free(), iax2_queue_frame(), iax2_sched_add(), IAX_COMMAND_TXREJ, IAX_DEFAULT_REG_EXPIRE, ast_frame_subclass::integer, LOG_WARNING, max_retries, MAX_RETRY_TIME, NULL, iax_frame::oseqno, chan_iax2_pvt::owner, iax2_registry::refresh, chan_iax2_pvt::reg, REG_STATE_TIMEOUT, iax2_registry::regstate, iax_frame::retrans, iax_frame::retries, iax_frame::retrytime, send_command(), send_packet(), ast_frame::subclass, iax_frame::transfer, iax_frame::ts, update_packet(), and iax2_registry::us.

Referenced by attempt_transmit().

 {
    /* Attempt to transmit the frame to the remote peer...
       Called without iaxsl held. */
    struct iax_frame *f = (struct iax_frame *)data;
    int freeme = 0;
    int callno = f->callno;
 
    /* Make sure this call is still active */
    if (callno)
       ast_mutex_lock(&iaxsl[callno]);
    if (callno && iaxs[callno]) {
       if (f->retries < 0) {
          /* Already ACK'd */
          freeme = 1;
       } else if (f->retries >= max_retries) {
          /* Too many attempts.  Record an error. */
          if (f->transfer) {
             /* Transfer timeout */
             send_command(iaxs[callno], AST_FRAME_IAX, IAX_COMMAND_TXREJ, 0, NULL, 0, -1);
          } else if (f->final) {
             iax2_destroy(callno);
          } else {
             if (iaxs[callno]->owner) {
                ast_log(LOG_WARNING, "Max retries exceeded to host %s on %s (type = %u, subclass = %d, ts=%u, seqno=%d)\n",
                   ast_sockaddr_stringify_addr(&iaxs[f->callno]->addr),
                   ast_channel_name(iaxs[f->callno]->owner),
                   f->af.frametype,
                   f->af.subclass.integer,
                   f->ts,
                   f->oseqno);
             }
             iaxs[callno]->error = ETIMEDOUT;
             if (iaxs[callno]->owner) {
                struct ast_frame fr = { AST_FRAME_CONTROL, { AST_CONTROL_HANGUP }, .data.uint32 = AST_CAUSE_DESTINATION_OUT_OF_ORDER };
                /* Hangup the fd */
                iax2_queue_frame(callno, &fr); /* XXX */
                /* Remember, owner could disappear */
                if (iaxs[callno] && iaxs[callno]->owner)
                   ast_channel_hangupcause_set(iaxs[callno]->owner, AST_CAUSE_DESTINATION_OUT_OF_ORDER);
             } else {
                if (iaxs[callno]->reg) {
                   memset(&iaxs[callno]->reg->us, 0, sizeof(iaxs[callno]->reg->us));
                   iaxs[callno]->reg->regstate = REG_STATE_TIMEOUT;
                   iaxs[callno]->reg->refresh = IAX_DEFAULT_REG_EXPIRE;
                }
                iax2_destroy(callno);
             }
          }
          freeme = 1;
       } else {
          /* Update it if it needs it */
          update_packet(f);
          /* Attempt transmission */
          send_packet(f);
          f->retries++;
          /* Try again later after 10 times as long */
          f->retrytime *= 10;
          if (f->retrytime > MAX_RETRY_TIME)
             f->retrytime = MAX_RETRY_TIME;
          /* Transfer messages max out at one second */
          if (f->transfer && (f->retrytime > 1000))
             f->retrytime = 1000;
          f->retrans = iax2_sched_add(sched, f->retrytime, attempt_transmit, f);
       }
    } else {
       /* Make sure it gets freed */
       f->retries = -1;
       freeme = 1;
    }
 
    if (freeme) {
       /* Don't attempt delivery, just remove it from the queue */
       AST_LIST_REMOVE(&frame_queue[callno], f, list);
       ast_mutex_unlock(&iaxsl[callno]);
       f->retrans = -1; /* this is safe because this is the scheduled function */
       /* Free the IAX frame */
       iax2_frame_free(f);
    } else if (callno) {
       ast_mutex_unlock(&iaxsl[callno]);
    }
 }

◆ __auth_reject()

static void __auth_reject ( const void * nothing )

static

Definition at line 9282 of file chan_iax2.c.

References AST_CAUSE_FACILITY_NOT_SUBSCRIBED, AST_CAUSE_FACILITY_REJECTED, AST_FRAME_IAX, ast_mutex_lock, ast_mutex_unlock, iax_ie_data::buf, IAX_COMMAND_REGREJ, IAX_COMMAND_REJECT, iax_ie_append_byte(), iax_ie_append_str(), IAX_IE_CAUSE, IAX_IE_CAUSECODE, iax_ie_data::pos, and send_command_final().

Referenced by auth_reject().

 {
    /* Called from IAX thread only, without iaxs lock */
    int callno = (int)(long)(nothing);
    struct iax_ie_data ied;
    ast_mutex_lock(&iaxsl[callno]);
    if (iaxs[callno]) {
       memset(&ied, 0, sizeof(ied));
       if (iaxs[callno]->authfail == IAX_COMMAND_REGREJ) {
          iax_ie_append_str(&ied, IAX_IE_CAUSE, "Registration Refused");
          iax_ie_append_byte(&ied, IAX_IE_CAUSECODE, AST_CAUSE_FACILITY_REJECTED);
       } else if (iaxs[callno]->authfail == IAX_COMMAND_REJECT) {
          iax_ie_append_str(&ied, IAX_IE_CAUSE, "No authority found");
          iax_ie_append_byte(&ied, IAX_IE_CAUSECODE, AST_CAUSE_FACILITY_NOT_SUBSCRIBED);
       }
       send_command_final(iaxs[callno], AST_FRAME_IAX, iaxs[callno]->authfail, 0, ied.buf, ied.pos, -1);
    }
    ast_mutex_unlock(&iaxsl[callno]);
 }

◆ __auto_congest()

static void __auto_congest ( const void * nothing )

static

Definition at line 4724 of file chan_iax2.c.

References AST_CONTROL_CONGESTION, AST_FRAME_CONTROL, ast_log, ast_mutex_lock, ast_mutex_unlock, iax2_queue_frame(), chan_iax2_pvt::initid, LOG_NOTICE, and PTR_TO_CALLNO.

Referenced by auto_congest().

 {
    int callno = PTR_TO_CALLNO(nothing);
    struct ast_frame f = { AST_FRAME_CONTROL, { AST_CONTROL_CONGESTION } };
    ast_mutex_lock(&iaxsl[callno]);
    if (iaxs[callno]) {
       iaxs[callno]->initid = -1;
       iax2_queue_frame(callno, &f);
       ast_log(LOG_NOTICE, "Auto-congesting call due to slow response\n");
    }
    ast_mutex_unlock(&iaxsl[callno]);
 }

◆ __auto_hangup()

static void __auto_hangup ( const void * nothing )

static

Definition at line 9331 of file chan_iax2.c.

References AST_CAUSE_NO_USER_RESPONSE, AST_FRAME_IAX, ast_mutex_lock, ast_mutex_unlock, iax_ie_data::buf, IAX_COMMAND_HANGUP, iax_ie_append_byte(), iax_ie_append_str(), IAX_IE_CAUSE, IAX_IE_CAUSECODE, iax_ie_data::pos, and send_command_final().

Referenced by auto_hangup().

 {
    /* Called from IAX thread only, without iaxs lock */
    int callno = (int)(long)(nothing);
    struct iax_ie_data ied;
    ast_mutex_lock(&iaxsl[callno]);
    if (iaxs[callno]) {
       memset(&ied, 0, sizeof(ied));
       iax_ie_append_str(&ied, IAX_IE_CAUSE, "Timeout");
       iax_ie_append_byte(&ied, IAX_IE_CAUSECODE, AST_CAUSE_NO_USER_RESPONSE);
       send_command_final(iaxs[callno], AST_FRAME_IAX, IAX_COMMAND_HANGUP, 0, ied.buf, ied.pos, -1);
    }
    ast_mutex_unlock(&iaxsl[callno]);
 }

◆ __do_deliver()

static int __do_deliver ( void * data )

static

Note: This function assumes that iaxsl[callno] is locked when called.; IMPORTANT NOTE!!! Any time this function is used, even if iaxs[callno] was valid before calling it, it may no longer be valid after calling it. This function calls iax2_queue_frame(), which may unlock and lock the mutex associated with this callno, meaning that another thread may grab it and destroy the call.

Definition at line 3340 of file chan_iax2.c.

References iax_frame::af, ast_clear_flag, AST_FRFLAG_HAS_TIMING_INFO, ast_test_flag64, iax_frame::callno, stasis_subscription::data, iax2_frame_free(), iax2_queue_frame(), IAX_ALREADYGONE, and iax_frame::retrans.

Referenced by __get_from_jb(), and schedule_delivery().

 {
    /* Just deliver the packet by using queueing.  This is called by
      the IAX thread with the iaxsl lock held. */
    struct iax_frame *fr = data;
    fr->retrans = -1;
    ast_clear_flag(&fr->af, AST_FRFLAG_HAS_TIMING_INFO);
    if (iaxs[fr->callno] && !ast_test_flag64(iaxs[fr->callno], IAX_ALREADYGONE))
       iax2_queue_frame(fr->callno, &fr->af);
    /* Free our iax frame */
    iax2_frame_free(fr);
    /* And don't run again */
    return 0;
 }

◆ __expire_registry()

static void __expire_registry ( const void * data )

static

Definition at line 8898 of file chan_iax2.c.

References iax2_peer::addr, ast_db_del(), ast_debug, AST_DEVICE_UNAVAILABLE, AST_DEVSTATE_CACHABLE, ast_devstate_changed(), ast_endpoint_blob_publish(), AST_ENDPOINT_OFFLINE, ast_endpoint_set_state(), ast_endpoint_state_type(), ast_json_pack(), ast_json_unref(), ast_sockaddr_setnull(), ast_test_flag64, iax2_peer::endpoint, iax2_peer::expire, iax2_peer::expiry, iax2_regfunk, IAX_RTAUTOCLEAR, IAX_RTCACHEFRIENDS, IAX_RTUPDATE, IAX_TEMPONLY, min_reg_expire, iax2_peer::name, NULL, peer_unref(), peercnt_modify(), RAII_VAR, realtime_update_peer(), register_peer_exten(), and unlink_peer().

Referenced by expire_registry().

 {
    struct iax2_peer *peer = (struct iax2_peer *) data;
    RAII_VAR(struct ast_json *, blob, NULL, ast_json_unref);
 
    if (!peer)
       return;
    if (peer->expire == -1) {
       /* Removed already (possibly through CLI), ignore */
       return;
    }
 
    peer->expire = -1;
 
    ast_debug(1, "Expiring registration for peer '%s'\n", peer->name);
    if (ast_test_flag64((&globalflags), IAX_RTUPDATE) && (ast_test_flag64(peer, IAX_TEMPONLY|IAX_RTCACHEFRIENDS)))
       realtime_update_peer(peer->name, &peer->addr, 0);
    ast_endpoint_set_state(peer->endpoint, AST_ENDPOINT_OFFLINE);
    blob = ast_json_pack("{s: s, s: s}",
       "peer_status", "Unregistered",
       "cause", "Expired");
    ast_endpoint_blob_publish(peer->endpoint, ast_endpoint_state_type(), blob);
    /* modify entry in peercnts table as _not_ registered */
    peercnt_modify((unsigned char) 0, 0, &peer->addr);
    /* Reset the address */
    ast_sockaddr_setnull(&peer->addr);
    /* Reset expiry value */
    peer->expiry = min_reg_expire;
    if (!ast_test_flag64(peer, IAX_TEMPONLY))
       ast_db_del("IAX/Registry", peer->name);
    register_peer_exten(peer, 0);
    ast_devstate_changed(AST_DEVICE_UNAVAILABLE, AST_DEVSTATE_CACHABLE, "IAX2/%s", peer->name); /* Activate notification */
    if (iax2_regfunk)
       iax2_regfunk(peer->name, 0);
 
    if (ast_test_flag64(peer, IAX_RTAUTOCLEAR))
       unlink_peer(peer);
 
    peer_unref(peer);
 }

◆ __find_callno()

static int __find_callno	(	unsigned short	callno,
		unsigned short	dcallno,
		struct ast_sockaddr *	addr,
		int	new,
		int	sockfd,
		int	return_locked,
		int	check_dcallno
	)

static

Definition at line 3108 of file chan_iax2.c.

References accountcode, chan_iax2_pvt::addr, amaflags, chan_iax2_pvt::amaflags, ao2_find, ao2_ref, ast_copy_flags64, ast_debug, ast_log, ast_mutex_lock, ast_mutex_unlock, ast_sockaddr_copy(), ast_sockaddr_stringify(), ast_string_field_set, chan_iax2_pvt::callno, chan_iax2_pvt::callno_entry, CALLNO_ENTRY_GET_CALLNO, CALLNO_ENTRY_TO_PTR, CALLNO_TYPE_NORMAL, default_parkinglot, DEFAULT_RETRY_TIME, chan_iax2_pvt::expiry, get_unused_callno(), host, iax2_getpeername(), iax2_sched_add(), IAX_FORCE_ENCRYPT, IAX_NOTRANSFER, IAX_RECVCONNECTEDLINE, IAX_SENDCONNECTEDLINE, IAX_TRANSFERMEDIA, IAX_USEJITTERBUF, iaxdebug, chan_iax2_pvt::lagid, lagrq_time, LOG_WARNING, match(), min_reg_expire, mohinterpret, mohsuggest, NEW_ALLOW, new_iax(), NULL, OBJ_POINTER, parkinglot, chan_iax2_pvt::peercallno, peercnt_add(), peercnt_remove_by_addr(), ping_time, chan_iax2_pvt::pingid, chan_iax2_pvt::pingtime, replace_callno(), chan_iax2_pvt::sockfd, store_by_peercallno(), and chan_iax2_pvt::transfer.

Referenced by find_callno(), and find_callno_locked().

 {
    int res = 0;
    int x;
    /* this call is calltoken validated as long as it is either NEW_FORCE
     * or NEW_ALLOW_CALLTOKEN_VALIDATED */
    int validated = (new > NEW_ALLOW) ? 1 : 0;
    char host[80];
 
    if (new <= NEW_ALLOW) {
       if (callno) {
          struct chan_iax2_pvt *pvt;
          struct chan_iax2_pvt tmp_pvt = {
             .callno = dcallno,
             .peercallno = callno,
             .transfercallno = callno,
             /* hack!! */
             .frames_received = check_dcallno,
          };
 
          ast_sockaddr_copy(&tmp_pvt.addr, addr);
          /* this works for finding normal call numbers not involving transfering */
          if ((pvt = ao2_find(iax_peercallno_pvts, &tmp_pvt, OBJ_POINTER))) {
             if (return_locked) {
                ast_mutex_lock(&iaxsl[pvt->callno]);
             }
             res = pvt->callno;
             ao2_ref(pvt, -1);
             pvt = NULL;
             return res;
          }
          /* this searches for transfer call numbers that might not get caught otherwise */
          memset(&tmp_pvt.addr, 0, sizeof(tmp_pvt.addr));
          ast_sockaddr_copy(&tmp_pvt.transfer, addr);
          if ((pvt = ao2_find(iax_transfercallno_pvts, &tmp_pvt, OBJ_POINTER))) {
             if (return_locked) {
                ast_mutex_lock(&iaxsl[pvt->callno]);
             }
             res = pvt->callno;
             ao2_ref(pvt, -1);
             pvt = NULL;
             return res;
          }
       }
          /* This will occur on the first response to a message that we initiated,
        * such as a PING. */
       if (dcallno) {
          ast_mutex_lock(&iaxsl[dcallno]);
       }
       if (callno && dcallno && iaxs[dcallno] && !iaxs[dcallno]->peercallno && match(addr, callno, dcallno, iaxs[dcallno], check_dcallno)) {
          iaxs[dcallno]->peercallno = callno;
          res = dcallno;
          store_by_peercallno(iaxs[dcallno]);
          if (!res || !return_locked) {
             ast_mutex_unlock(&iaxsl[dcallno]);
          }
          return res;
       }
       if (dcallno) {
          ast_mutex_unlock(&iaxsl[dcallno]);
       }
    }
    if (!res && (new >= NEW_ALLOW)) {
       callno_entry entry;
 
       /* It may seem odd that we look through the peer list for a name for
        * this *incoming* call.  Well, it is weird.  However, users don't
        * have an IP address/port number that we can match against.  So,
        * this is just checking for a peer that has that IP/port and
        * assuming that we have a user of the same name.  This isn't always
        * correct, but it will be changed if needed after authentication. */
       if (!iax2_getpeername(*addr, host, sizeof(host)))
          snprintf(host, sizeof(host), "%s", ast_sockaddr_stringify(addr));
 
       if (peercnt_add(addr)) {
          /* This address has hit its callnumber limit.  When the limit
           * is reached, the connection is not added to the peercnts table.*/
          return 0;
       }
 
       if (get_unused_callno(CALLNO_TYPE_NORMAL, validated, &entry)) {
          /* since we ran out of space, remove the peercnt
           * entry we added earlier */
          peercnt_remove_by_addr(addr);
          ast_log(LOG_WARNING, "No more space\n");
          return 0;
       }
       x = CALLNO_ENTRY_GET_CALLNO(entry);
       ast_mutex_lock(&iaxsl[x]);
 
       iaxs[x] = new_iax(addr, host);
       if (iaxs[x]) {
          if (iaxdebug)
             ast_debug(1, "Creating new call structure %d\n", x);
          iaxs[x]->callno_entry = entry;
          iaxs[x]->sockfd = sockfd;
          ast_sockaddr_copy(&iaxs[x]->addr, addr);
          iaxs[x]->peercallno = callno;
          iaxs[x]->callno = x;
          iaxs[x]->pingtime = DEFAULT_RETRY_TIME;
          iaxs[x]->expiry = min_reg_expire;
          iaxs[x]->pingid = iax2_sched_add(sched, ping_time * 1000, send_ping, (void *)(long)x);
          iaxs[x]->lagid = iax2_sched_add(sched, lagrq_time * 1000, send_lagrq, (void *)(long)x);
          iaxs[x]->amaflags = amaflags;
          ast_copy_flags64(iaxs[x], &globalflags, IAX_NOTRANSFER | IAX_TRANSFERMEDIA | IAX_USEJITTERBUF | IAX_SENDCONNECTEDLINE | IAX_RECVCONNECTEDLINE | IAX_FORCE_ENCRYPT);
          ast_string_field_set(iaxs[x], accountcode, accountcode);
          ast_string_field_set(iaxs[x], mohinterpret, mohinterpret);
          ast_string_field_set(iaxs[x], mohsuggest, mohsuggest);
          ast_string_field_set(iaxs[x], parkinglot, default_parkinglot);
 
          if (iaxs[x]->peercallno) {
             store_by_peercallno(iaxs[x]);
          }
       } else {
          ast_log(LOG_WARNING, "Out of resources\n");
          ast_mutex_unlock(&iaxsl[x]);
          replace_callno(CALLNO_ENTRY_TO_PTR(entry));
          return 0;
       }
       if (!return_locked)
          ast_mutex_unlock(&iaxsl[x]);
       res = x;
    }
    return res;
 }

◆ __get_from_jb()

static void __get_from_jb ( const void * p )

static

Definition at line 4125 of file chan_iax2.c.

References __do_deliver(), ast_format_compatibility_bitfield2format(), ast_format_get_default_ms(), ast_format_get_sample_rate(), AST_FRAME_VOICE, AST_FRIENDLY_OFFSET, ast_mutex_lock, ast_mutex_unlock, ast_samp2tv(), ast_test_flag64, ast_tvadd(), ast_tvdiff_ms(), ast_tvnow(), jb_frame::data, ast_frame::delivery, ast_frame_subclass::format, ast_frame::frametype, iax2_frame_free(), iax2_queue_frame(), IAX_ALREADYGONE, chan_iax2_pvt::jb, JB_DROP, JB_EMPTY, jb_get(), JB_INTERP, jb_next(), JB_NOFRAME, JB_OK, chan_iax2_pvt::jbid, jb_frame::ms, iax_frame::next, NULL, ast_frame::offset, PTR_TO_CALLNO, chan_iax2_pvt::rxcore, ast_frame::samples, ast_frame::src, ast_frame::subclass, update_jbsched(), and chan_iax2_pvt::voiceformat.

Referenced by get_from_jb().

 {
    int callno = PTR_TO_CALLNO(p);
    struct chan_iax2_pvt *pvt = NULL;
    struct iax_frame *fr;
    jb_frame frame;
    int ret;
    long ms;
    long next;
    struct timeval now = ast_tvnow();
 
    /* Make sure we have a valid private structure before going on */
    ast_mutex_lock(&iaxsl[callno]);
    pvt = iaxs[callno];
    if (!pvt) {
       /* No go! */
       ast_mutex_unlock(&iaxsl[callno]);
       return;
    }
 
    pvt->jbid = -1;
 
    /* round up a millisecond since ast_sched_runq does; */
    /* prevents us from spinning while waiting for our now */
    /* to catch up with runq's now */
    now.tv_usec += 1000;
 
    ms = ast_tvdiff_ms(now, pvt->rxcore);
 
    if(ms >= (next = jb_next(pvt->jb))) {
       struct ast_format *voicefmt;
       voicefmt = ast_format_compatibility_bitfield2format(pvt->voiceformat);
       ret = jb_get(pvt->jb, &frame, ms, voicefmt ? ast_format_get_default_ms(voicefmt) : 20);
       switch(ret) {
       case JB_OK:
          fr = frame.data;
          __do_deliver(fr);
          /* __do_deliver() can cause the call to disappear */
          pvt = iaxs[callno];
          break;
       case JB_INTERP:
       {
          struct ast_frame af = { 0, };
 
          /* create an interpolation frame */
          af.frametype = AST_FRAME_VOICE;
          af.subclass.format = voicefmt;
          af.samples  = frame.ms * (ast_format_get_sample_rate(voicefmt) / 1000);
          af.src  = "IAX2 JB interpolation";
          af.delivery = ast_tvadd(pvt->rxcore, ast_samp2tv(next, 1000));
          af.offset = AST_FRIENDLY_OFFSET;
 
          /* queue the frame:  For consistency, we would call __do_deliver here, but __do_deliver wants an iax_frame,
           * which we'd need to malloc, and then it would free it.  That seems like a drag */
          if (!ast_test_flag64(iaxs[callno], IAX_ALREADYGONE)) {
             iax2_queue_frame(callno, &af);
             /* iax2_queue_frame() could cause the call to disappear */
             pvt = iaxs[callno];
          }
       }
          break;
       case JB_DROP:
          iax2_frame_free(frame.data);
          break;
       case JB_NOFRAME:
       case JB_EMPTY:
          /* do nothing */
          break;
       default:
          /* shouldn't happen */
          break;
       }
    }
    if (pvt)
       update_jbsched(pvt);
    ast_mutex_unlock(&iaxsl[callno]);
 }

◆ __iax2_do_register_s()

static void __iax2_do_register_s ( const void * data )

static

Definition at line 8541 of file chan_iax2.c.

References iax2_registry::addr, AST_AF_UNSPEC, ast_dnsmgr_lookup(), ast_sockaddr_isnull(), ast_sockaddr_port, ast_sockaddr_set_port, iax2_registry::dnsmgr, iax2_registry::expire, iax2_registry::hostname, iax2_do_register(), NULL, iax2_registry::port, srvlookup, and ast_sockaddr::ss.

Referenced by iax2_do_register_s().

 {
    struct iax2_registry *reg = (struct iax2_registry *)data;
 
    if (ast_sockaddr_isnull(&reg->addr)) {
       reg->addr.ss.ss_family = AST_AF_UNSPEC;
       ast_dnsmgr_lookup(reg->hostname, &reg->addr, &reg->dnsmgr, srvlookup ? "_iax._udp" : NULL);
       if (!ast_sockaddr_port(&reg->addr)) {
          ast_sockaddr_set_port(&reg->addr, reg->port);
       } else {
          reg->port = ast_sockaddr_port(&reg->addr);
       }
    }
 
    reg->expire = -1;
    iax2_do_register(reg);
 }

◆ __iax2_poke_noanswer()

static void __iax2_poke_noanswer ( const void * data )

static

Definition at line 12317 of file chan_iax2.c.

References AST_DEVICE_UNAVAILABLE, AST_DEVSTATE_CACHABLE, ast_devstate_changed(), ast_endpoint_blob_publish(), AST_ENDPOINT_OFFLINE, ast_endpoint_set_state(), ast_endpoint_state_type(), ast_json_pack(), ast_json_unref(), ast_log, ast_mutex_lock, ast_mutex_unlock, iax2_peer::callno, iax2_peer::endpoint, iax2_destroy(), iax2_poke_peer_s(), iax2_sched_add(), iax2_peer::lastms, LOG_NOTICE, iax2_peer::name, NULL, peer_ref(), peer_unref(), iax2_peer::pokeexpire, iax2_peer::pokefreqnotok, and RAII_VAR.

Referenced by iax2_poke_noanswer().

 {
    struct iax2_peer *peer = (struct iax2_peer *)data;
    int callno;
 
    if (peer->lastms > -1) {
       RAII_VAR(struct ast_json *, blob, NULL, ast_json_unref);
 
       ast_log(LOG_NOTICE, "Peer '%s' is now UNREACHABLE! Time: %d\n", peer->name, peer->lastms);
       ast_endpoint_set_state(peer->endpoint, AST_ENDPOINT_OFFLINE);
       blob = ast_json_pack("{s: s, s: i}",
          "peer_status", "Unreachable",
          "time", peer->lastms);
       ast_endpoint_blob_publish(peer->endpoint, ast_endpoint_state_type(), blob);
       ast_devstate_changed(AST_DEVICE_UNAVAILABLE, AST_DEVSTATE_CACHABLE, "IAX2/%s", peer->name); /* Activate notification */
    }
    if ((callno = peer->callno) > 0) {
       ast_mutex_lock(&iaxsl[callno]);
       iax2_destroy(callno);
       ast_mutex_unlock(&iaxsl[callno]);
    }
    peer->callno = 0;
    peer->lastms = -1;
    /* Try again quickly */
    peer->pokeexpire = iax2_sched_add(sched, peer->pokefreqnotok, iax2_poke_peer_s, peer_ref(peer));
    if (peer->pokeexpire == -1)
       peer_unref(peer);
 }

◆ __iax2_poke_peer_s()

static void __iax2_poke_peer_s ( const void * data )

static

Definition at line 9391 of file chan_iax2.c.

References iax2_poke_peer(), and peer_unref().

Referenced by iax2_poke_peer_s().

 {
    struct iax2_peer *peer = (struct iax2_peer *)data;
    iax2_poke_peer(peer, 0);
    peer_unref(peer);
 }

◆ __iax2_show_peers()

static int __iax2_show_peers	(	int	fd,
		int *	total,
		struct mansession *	s,
		const int	argc,
		const char *const	argv[]
	)

static

Definition at line 6946 of file chan_iax2.c.

References _iax2_show_peers_one(), iax2_peer::addr, ao2_iterator_destroy(), ao2_iterator_init(), ao2_iterator_next, ast_cli(), ast_sockaddr_isnull(), show_peers_context::havepattern, iax2_peer::name, NULL, show_peers_context::offline_peers, show_peers_context::online_peers, peer_unref(), PEERS_FORMAT2, show_peers_context::regexbuf, show_peers_context::registeredonly, RESULT_SHOWUSAGE, RESULT_SUCCESS, show_peers_context::total_peers, and show_peers_context::unmonitored_peers.

Referenced by handle_cli_iax2_show_peers(), and manager_iax2_show_peers().

 {
    struct show_peers_context cont = {
       .havepattern = 0,
       .idtext = "",
       .registeredonly = 0,
 
       .peerlist = 0,
 
       .total_peers = 0,
       .online_peers = 0,
       .offline_peers = 0,
       .unmonitored_peers = 0,
    };
 
    struct ao2_iterator i;
 
    struct iax2_peer *peer = NULL;
 
    switch (argc) {
    case 6:
       if (!strcasecmp(argv[3], "registered"))
          cont.registeredonly = 1;
       else
          return RESULT_SHOWUSAGE;
       if (!strcasecmp(argv[4], "like")) {
          if (regcomp(&cont.regexbuf, argv[5], REG_EXTENDED | REG_NOSUB))
             return RESULT_SHOWUSAGE;
          cont.havepattern = 1;
       } else
          return RESULT_SHOWUSAGE;
       break;
    case 5:
       if (!strcasecmp(argv[3], "like")) {
          if (regcomp(&cont.regexbuf, argv[4], REG_EXTENDED | REG_NOSUB))
             return RESULT_SHOWUSAGE;
          cont.havepattern = 1;
       } else
          return RESULT_SHOWUSAGE;
       break;
    case 4:
       if (!strcasecmp(argv[3], "registered")) {
          cont.registeredonly = 1;
       } else {
          return RESULT_SHOWUSAGE;
       }
       break;
    case 3:
       break;
    default:
       return RESULT_SHOWUSAGE;
    }
 
 
    if (!s) {
       ast_cli(fd, PEERS_FORMAT2, "Name/Username", "Host", "   ", "Mask", "Port", "   ", "Status", "Description");
    }
 
    i = ao2_iterator_init(peers, 0);
    for (; (peer = ao2_iterator_next(&i)); peer_unref(peer)) {
 
       if (cont.registeredonly && ast_sockaddr_isnull(&peer->addr)) {
          continue;
       }
       if (cont.havepattern && regexec(&cont.regexbuf, peer->name, 0, NULL, 0)) {
          continue;
       }
 
       _iax2_show_peers_one(fd, s, &cont, peer);
 
    }
    ao2_iterator_destroy(&i);
 
    if (!s) {
       ast_cli(fd,"%d iax2 peers [%d online, %d offline, %d unmonitored]\n",
          cont.total_peers, cont.online_peers, cont.offline_peers, cont.unmonitored_peers);
    }
 
    if (cont.havepattern) {
       regfree(&cont.regexbuf);
    }
 
    if (total) {
       *total = cont.total_peers;
    }
 
    return RESULT_SUCCESS;
 
 }

◆ __reg_module()

static void __reg_module ( void )

static

Definition at line 14974 of file chan_iax2.c.

◆ __schedule_action()

static int __schedule_action	(	void()(const void data)	func,
		const void *	data,
		const char *	funcname
	)

static

Definition at line 1653 of file chan_iax2.c.

References ast_copy_string(), ast_debug, iax2_thread::cond, iax2_thread::curfunc, stasis_subscription::data, find_idle_thread(), IAX_IOSTATE_SCHEDREADY, iax2_thread::iostate, iax2_thread::lock, NULL, iax2_thread::scheddata, iax2_thread::schedfunc, signal_condition(), and thread.

 {
    struct iax2_thread *thread;
    static time_t lasterror;
    time_t t;
 
    thread = find_idle_thread();
    if (thread != NULL) {
       thread->schedfunc = func;
       thread->scheddata = data;
       thread->iostate = IAX_IOSTATE_SCHEDREADY;
 #ifdef DEBUG_SCHED_MULTITHREAD
       ast_copy_string(thread->curfunc, funcname, sizeof(thread->curfunc));
 #endif
       signal_condition(&thread->lock, &thread->cond);
       return 0;
    }
    time(&t);
    if (t != lasterror) {
       lasterror = t;
       ast_debug(1, "Out of idle IAX2 threads for scheduling! (%s)\n", funcname);
    }
 
    return -1;
 }

◆ __send_command()

static int __send_command	(	struct chan_iax2_pvt *	i,
		char	type,
		int	command,
		unsigned int	ts,
		const unsigned char *	data,
		int	datalen,
		int	seqno,
		int	now,
		int	transfer,
		int	final
	)

static

Definition at line 7712 of file chan_iax2.c.

References ast_frame::data, ast_frame::datalen, ast_frame::frametype, iax2_send(), ast_frame_subclass::integer, ast_frame::ptr, queue_signalling(), ast_frame::src, ast_frame::subclass, and type.

Referenced by send_command(), send_command_final(), send_command_immediate(), and send_command_transfer().

 {
    struct ast_frame f = { 0, };
    int res = 0;
 
    f.frametype = type;
    f.subclass.integer = command;
    f.datalen = datalen;
    f.src = __FUNCTION__;
    f.data.ptr = (void *) data;
 
    if ((res = queue_signalling(i, &f)) <= 0) {
       return res;
    }
 
    return iax2_send(i, &f, ts, seqno, now, transfer, final);
 }

◆ __send_lagrq()

static void __send_lagrq ( const void * data )

static

Definition at line 1780 of file chan_iax2.c.

References ast_debug, AST_FRAME_IAX, ast_mutex_unlock, iax2_thread::callno, iax2_lock_callno_unless_destroyed(), iax2_sched_add(), IAX_COMMAND_LAGRQ, chan_iax2_pvt::lagid, lagrq_time, NULL, PTR_TO_CALLNO, and send_command().

Referenced by send_lagrq().

 {
    int callno = PTR_TO_CALLNO(data);
 
    if (iax2_lock_callno_unless_destroyed(callno) == 0) {
       ast_debug(3, "Hangup initiated on call %d, aborting __send_lagrq\n", callno);
       return;
    }
 
    /* Mark lagid as invalid scheduler id. */
    iaxs[callno]->lagid = -1;
 
    /* callno is now locked. */
    if (iaxs[callno]->peercallno) {
       /* Send LAGRQ packet. */
       send_command(iaxs[callno], AST_FRAME_IAX, IAX_COMMAND_LAGRQ, 0, NULL, 0, -1);
 
       /* Schedule sending next lagrq. */
       iaxs[callno]->lagid = iax2_sched_add(sched, lagrq_time * 1000, send_lagrq, data);
    }
 
    ast_mutex_unlock(&iaxsl[callno]);
 }

◆ __send_ping()

static void __send_ping ( const void * data )

static

Definition at line 1716 of file chan_iax2.c.

References ast_debug, AST_FRAME_IAX, ast_mutex_unlock, iax2_thread::callno, iax2_lock_callno_unless_destroyed(), iax2_sched_add(), IAX_COMMAND_PING, NULL, ping_time, chan_iax2_pvt::pingid, PTR_TO_CALLNO, and send_command().

Referenced by send_ping().

 {
    int callno = PTR_TO_CALLNO(data);
 
    if (iax2_lock_callno_unless_destroyed(callno) == 0) {
       ast_debug(3, "Hangup initiated on call %d, aborting __send_ping\n", callno);
       return;
    }
 
    /* Mark pingid as invalid scheduler id. */
    iaxs[callno]->pingid = -1;
 
    /* callno is now locked. */
    if (iaxs[callno]->peercallno) {
       /* Send PING packet. */
       send_command(iaxs[callno], AST_FRAME_IAX, IAX_COMMAND_PING, 0, NULL, 0, -1);
 
       /* Schedule sending next ping. */
       iaxs[callno]->pingid = iax2_sched_add(sched, ping_time * 1000, send_ping, data);
    }
 
    ast_mutex_unlock(&iaxsl[callno]);
 }

◆ __unload_module()

static int __unload_module ( void )

static

Definition at line 14601 of file chan_iax2.c.

References acl_change_stasis_unsubscribe(), ao2_ref, ARRAY_LEN, ast_channel_unregister(), ast_cli_unregister_multiple(), ast_context_destroy_by_name(), ast_manager_unregister(), ast_mutex_destroy, ast_netsock_release(), AST_PTHREADT_NULL, ast_sched_clean_by_callback(), ast_sched_context_destroy(), ast_taskprocessor_unreference(), ast_timer_close(), ast_unload_realtime(), ast_unregister_application(), ast_unregister_switch(), ast_channel_tech::capabilities, cleanup_thread_list(), delete_users(), iax2_destroy(), iax_firmware_unload(), iax_provision_unload(), netthreadid, network_change_stasis_unsubscribe(), NULL, peercnt_remove_cb(), and regcontext.

Referenced by load_module(), and unload_module().

 {
    int x;
 
    network_change_stasis_unsubscribe();
    acl_change_stasis_unsubscribe();
 
    ast_manager_unregister("IAXpeers");
    ast_manager_unregister("IAXpeerlist");
    ast_manager_unregister("IAXnetstats");
    ast_manager_unregister("IAXregistry");
    ast_unregister_application(papp);
    ast_cli_unregister_multiple(cli_iax2, ARRAY_LEN(cli_iax2));
    ast_unregister_switch(&iax2_switch);
    ast_channel_unregister(&iax2_tech);
 
    if (netthreadid != AST_PTHREADT_NULL) {
       pthread_cancel(netthreadid);
       pthread_kill(netthreadid, SIGURG);
       pthread_join(netthreadid, NULL);
    }
 
    for (x = 0; x < ARRAY_LEN(iaxs); x++) {
       if (iaxs[x]) {
          iax2_destroy(x);
       }
    }
 
    /* Call for all threads to halt */
    cleanup_thread_list(&active_list);
    cleanup_thread_list(&dynamic_list);
    cleanup_thread_list(&idle_list);
 
    ast_netsock_release(netsock);
    ast_netsock_release(outsock);
    for (x = 0; x < ARRAY_LEN(iaxs); x++) {
       if (iaxs[x]) {
          iax2_destroy(x);
       }
    }
    ast_manager_unregister( "IAXpeers" );
    ast_manager_unregister( "IAXpeerlist" );
    ast_manager_unregister( "IAXnetstats" );
    ast_manager_unregister( "IAXregistry" );
    ast_unregister_application(papp);
    ast_cli_unregister_multiple(cli_iax2, ARRAY_LEN(cli_iax2));
    ast_unregister_switch(&iax2_switch);
    ast_channel_unregister(&iax2_tech);
    delete_users();
    iax_provision_unload();
    iax_firmware_unload();
 
    for (x = 0; x < ARRAY_LEN(iaxsl); x++) {
       ast_mutex_destroy(&iaxsl[x]);
    }
 
    ao2_ref(peers, -1);
    ao2_ref(users, -1);
    ao2_ref(iax_peercallno_pvts, -1);
    ao2_ref(iax_transfercallno_pvts, -1);
    ao2_ref(callno_limits, -1);
    ao2_ref(calltoken_ignores, -1);
    if (timer) {
       ast_timer_close(timer);
       timer = NULL;
    }
    transmit_processor = ast_taskprocessor_unreference(transmit_processor);
 
    ast_sched_clean_by_callback(sched, peercnt_remove_cb, peercnt_remove_cb);
    ast_sched_context_destroy(sched);
    sched = NULL;
    ao2_ref(peercnts, -1);
 
    ast_context_destroy_by_name(regcontext, "IAX2");
    ast_unload_realtime("iaxpeers");
 
    ao2_ref(iax2_tech.capabilities, -1);
    iax2_tech.capabilities = NULL;
    return 0;
 }

◆ __unreg_module()

static void __unreg_module ( void )

static

Definition at line 14974 of file chan_iax2.c.

◆ _iax2_show_peers_one()

static void _iax2_show_peers_one	(	int	fd,
		struct mansession *	s,
		struct show_peers_context *	cont,
		struct iax2_peer *	peer
	)

static

Definition at line 6845 of file chan_iax2.c.

References iax2_peer::addr, ast_cli(), ast_copy_string(), ast_sockaddr_stringify_addr(), ast_sockaddr_stringify_port(), ast_str_alloca, ast_str_buffer(), ast_strdupa, ast_strlen_zero, ast_test_flag64, astman_append(), iax2_peer::description, iax2_peer::encmethods, encmethods_to_str(), IAX_DYNAMIC, IAX_TRUNK, show_peers_context::idtext, iax2_peer::mask, iax2_peer::name, show_peers_context::offline_peers, show_peers_context::online_peers, peer_status(), show_peers_context::peerlist, PEERS_FORMAT, status, show_peers_context::total_peers, show_peers_context::unmonitored_peers, and iax2_peer::username.

Referenced by __iax2_show_peers(), and manager_iax2_show_peer_list().

 {
    char name[256] = "";
    char status[64];
    int retstatus;
    struct ast_str *encmethods = ast_str_alloca(256);
 
    char *tmp_host, *tmp_mask, *tmp_port;
 
    tmp_host = ast_strdupa(ast_sockaddr_stringify_addr(&peer->addr));
    tmp_mask = ast_strdupa(ast_sockaddr_stringify_addr(&peer->mask));
    tmp_port = ast_strdupa(ast_sockaddr_stringify_port(&peer->addr));
 
    if (!ast_strlen_zero(peer->username)) {
       snprintf(name, sizeof(name), "%s/%s", peer->name, peer->username);
    } else {
       ast_copy_string(name, peer->name, sizeof(name));
    }
 
    encmethods_to_str(peer->encmethods, &encmethods);
    retstatus = peer_status(peer, status, sizeof(status));
    if (retstatus > 0) {
       cont->online_peers++;
    } else if (!retstatus) {
       cont->offline_peers++;
    } else {
       cont->unmonitored_peers++;
    }
 
    if (s) {
       if (cont->peerlist) { /* IAXpeerlist */
          astman_append(s,
             "Event: PeerEntry\r\n%s"
             "Channeltype: IAX\r\n",
             cont->idtext);
          if (!ast_strlen_zero(peer->username)) {
             astman_append(s,
                "ObjectName: %s\r\n"
                "ObjectUsername: %s\r\n",
                peer->name,
                peer->username);
          } else {
             astman_append(s,
                "ObjectName: %s\r\n",
                name);
          }
       } else { /* IAXpeers */
          astman_append(s,
             "Event: PeerEntry\r\n%s"
             "Channeltype: IAX2\r\n"
             "ObjectName: %s\r\n",
             cont->idtext,
             name);
       }
       astman_append(s,
          "ChanObjectType: peer\r\n"
          "IPaddress: %s\r\n",
          tmp_host);
       if (cont->peerlist) { /* IAXpeerlist */
          astman_append(s,
             "Mask: %s\r\n"
             "Port: %s\r\n",
             tmp_mask,
             tmp_port);
       } else { /* IAXpeers */
          astman_append(s,
             "IPport: %s\r\n",
             tmp_port);
       }
       astman_append(s,
          "Dynamic: %s\r\n"
          "Trunk: %s\r\n"
          "Encryption: %s\r\n"
          "Status: %s\r\n",
          ast_test_flag64(peer, IAX_DYNAMIC) ? "yes" : "no",
          ast_test_flag64(peer, IAX_TRUNK) ? "yes" : "no",
          peer->encmethods ? ast_str_buffer(encmethods) : "no",
          status);
       if (cont->peerlist) { /* IAXpeerlist */
          astman_append(s, "\r\n");
       } else { /* IAXpeers */
          astman_append(s,
             "Description: %s\r\n\r\n",
             peer->description);
       }
    } else {
       ast_cli(fd, PEERS_FORMAT,
          name,
          tmp_host,
          ast_test_flag64(peer, IAX_DYNAMIC) ? "(D)" : "(S)",
          tmp_mask,
          tmp_port,
          ast_test_flag64(peer, IAX_TRUNK) ? "(T)" : "   ",
          peer->encmethods ? "(E)" : "   ",
          status,
          peer->description);
    }
 
    cont->total_peers++;
 }

◆ acf_channel_read()

static int acf_channel_read	(	struct ast_channel *	chan,
		const char *	funcname,
		char *	preparse,
		char *	buf,
		size_t	buflen
	)

static

Definition at line 14467 of file chan_iax2.c.

References chan_iax2_pvt::addr, ast_channel_tech(), ast_channel_tech_pvt(), ast_copy_string(), ast_log, ast_mutex_lock, ast_mutex_unlock, ast_sockaddr_isnull(), ast_sockaddr_stringify_addr(), chan_iax2_pvt::callno, IAX_CALLENCRYPTED, LOG_ERROR, chan_iax2_pvt::osptoken, PTR_TO_CALLNO, and chan_iax2_pvt::username.

Referenced by jb_debug_output().

 {
    struct chan_iax2_pvt *pvt;
    unsigned int callno;
    int res = 0;
 
    if (!chan || ast_channel_tech(chan) != &iax2_tech) {
       ast_log(LOG_ERROR, "This function requires a valid IAX2 channel\n");
       return -1;
    }
 
    callno = PTR_TO_CALLNO(ast_channel_tech_pvt(chan));
    ast_mutex_lock(&iaxsl[callno]);
    if (!(pvt = iaxs[callno])) {
       ast_mutex_unlock(&iaxsl[callno]);
       return -1;
    }
 
    if (!strcasecmp(args, "osptoken")) {
       ast_copy_string(buf, pvt->osptoken, buflen);
    } else if (!strcasecmp(args, "peerip")) {
       ast_copy_string(buf, !ast_sockaddr_isnull(&pvt->addr) ? ast_sockaddr_stringify_addr(&pvt->addr) : "", buflen);
    } else if (!strcasecmp(args, "peername")) {
       ast_copy_string(buf, pvt->username, buflen);
    } else if (!strcasecmp(args, "secure_signaling") || !strcasecmp(args, "secure_media")) {
       snprintf(buf, buflen, "%s", IAX_CALLENCRYPTED(pvt) ? "1" : "");
    } else {
       res = -1;
    }
 
    ast_mutex_unlock(&iaxsl[callno]);
 
    return res;
 }

◆ acf_iaxvar_read()

static int acf_iaxvar_read	(	struct ast_channel *	chan,
		const char *	cmd,
		char *	data,
		char *	buf,
		size_t	len
	)

static

Definition at line 9977 of file chan_iax2.c.

References ast_channel_datastore_find(), ast_copy_string(), AST_LIST_HEAD, AST_LIST_LOCK, AST_LIST_TRAVERSE, AST_LIST_UNLOCK, ast_log, ast_datastore::data, ast_var_t::entries, LOG_WARNING, ast_var_t::name, NULL, ast_var_t::value, and var.

 {
    struct ast_datastore *variablestore;
    AST_LIST_HEAD(, ast_var_t) *varlist;
    struct ast_var_t *var;
 
    if (!chan) {
       ast_log(LOG_WARNING, "No channel was provided to %s function.\n", cmd);
       return -1;
    }
 
    variablestore = ast_channel_datastore_find(chan, &iax2_variable_datastore_info, NULL);
    if (!variablestore) {
       *buf = '\0';
       return 0;
    }
    varlist = variablestore->data;
 
    AST_LIST_LOCK(varlist);
    AST_LIST_TRAVERSE(varlist, var, entries) {
       if (strcmp(var->name, data) == 0) {
          ast_copy_string(buf, var->value, len);
          break;
       }
    }
    AST_LIST_UNLOCK(varlist);
    return 0;
 }

◆ acf_iaxvar_write()

static int acf_iaxvar_write	(	struct ast_channel *	chan,
		const char *	cmd,
		char *	data,
		const char *	value
	)

static

Definition at line 10006 of file chan_iax2.c.

References ast_calloc, ast_channel_datastore_add(), ast_channel_datastore_find(), ast_datastore_alloc, ast_datastore_free(), AST_LIST_HEAD, AST_LIST_HEAD_INIT, AST_LIST_INSERT_TAIL, AST_LIST_LOCK, AST_LIST_REMOVE_CURRENT, AST_LIST_TRAVERSE_SAFE_BEGIN, AST_LIST_TRAVERSE_SAFE_END, AST_LIST_UNLOCK, ast_log, ast_var_assign, ast_var_delete(), ast_datastore::data, DATASTORE_INHERIT_FOREVER, ast_var_t::entries, ast_datastore::inheritance, LOG_ERROR, LOG_WARNING, ast_var_t::name, NULL, and var.

 {
    struct ast_datastore *variablestore;
    AST_LIST_HEAD(, ast_var_t) *varlist;
    struct ast_var_t *var;
 
    if (!chan) {
       ast_log(LOG_WARNING, "No channel was provided to %s function.\n", cmd);
       return -1;
    }
 
    variablestore = ast_channel_datastore_find(chan, &iax2_variable_datastore_info, NULL);
    if (!variablestore) {
       variablestore = ast_datastore_alloc(&iax2_variable_datastore_info, NULL);
       if (!variablestore) {
          ast_log(LOG_ERROR, "Memory allocation error\n");
          return -1;
       }
       varlist = ast_calloc(1, sizeof(*varlist));
       if (!varlist) {
          ast_datastore_free(variablestore);
          ast_log(LOG_ERROR, "Unable to assign new variable '%s'\n", data);
          return -1;
       }
 
       AST_LIST_HEAD_INIT(varlist);
       variablestore->data = varlist;
       variablestore->inheritance = DATASTORE_INHERIT_FOREVER;
       ast_channel_datastore_add(chan, variablestore);
    } else
       varlist = variablestore->data;
 
    AST_LIST_LOCK(varlist);
    AST_LIST_TRAVERSE_SAFE_BEGIN(varlist, var, entries) {
       if (strcmp(var->name, data) == 0) {
          AST_LIST_REMOVE_CURRENT(entries);
          ast_var_delete(var);
          break;
       }
    }
    AST_LIST_TRAVERSE_SAFE_END;
    var = ast_var_assign(data, value);
    if (var)
       AST_LIST_INSERT_TAIL(varlist, var, entries);
    else
       ast_log(LOG_ERROR, "Unable to assign new variable '%s'\n", data);
    AST_LIST_UNLOCK(varlist);
    return 0;
 }

◆ acl_change_stasis_cb()

static void acl_change_stasis_cb	(	void *	data,
		struct stasis_subscription *	sub,
		struct stasis_message *	message
	)

static

Definition at line 1512 of file chan_iax2.c.

References ast_log, ast_named_acl_change_type(), LOG_NOTICE, reload_config(), and stasis_message_type().

Referenced by jb_debug_output().

 {
    if (stasis_message_type(message) != ast_named_acl_change_type()) {
       return;
    }
 
    ast_log(LOG_NOTICE, "Reloading chan_iax2 in response to ACL change event.\n");
    reload_config(1);
 }

◆ acl_change_stasis_subscribe()

static void acl_change_stasis_subscribe ( void )

static

Definition at line 1470 of file chan_iax2.c.

References ast_named_acl_change_type(), ast_security_topic(), NULL, stasis_subscribe, stasis_subscription_accept_message_type(), STASIS_SUBSCRIPTION_FILTER_SELECTIVE, and stasis_subscription_set_filter().

Referenced by build_peer(), and build_user().

 {
    if (!acl_change_sub) {
       acl_change_sub = stasis_subscribe(ast_security_topic(),
          acl_change_stasis_cb, NULL);
       stasis_subscription_accept_message_type(acl_change_sub, ast_named_acl_change_type());
       stasis_subscription_set_filter(acl_change_sub, STASIS_SUBSCRIPTION_FILTER_SELECTIVE);
    }
 }

◆ acl_change_stasis_unsubscribe()

static void acl_change_stasis_unsubscribe ( void )

static

Definition at line 1480 of file chan_iax2.c.

References stasis_unsubscribe_and_join().

Referenced by __unload_module().

 {
    acl_change_sub = stasis_unsubscribe_and_join(acl_change_sub);
 }

◆ add_calltoken_ignore()

static int add_calltoken_ignore ( const char * addr )

static

Definition at line 2795 of file chan_iax2.c.

References ao2_alloc, ao2_find, ao2_link, ao2_lock, ao2_ref, ao2_unlock, ast_append_ha(), ast_copy_ha(), ast_free_ha(), ast_log, ast_strlen_zero, addr_range::delme, addr_range::ha, LOG_WARNING, NULL, and OBJ_POINTER.

Referenced by set_config().

 {
    struct addr_range tmp;
    struct addr_range *addr_range = NULL;
    struct ast_ha *ha = NULL;
    int error = 0;
 
    if (ast_strlen_zero(addr)) {
       ast_log(LOG_WARNING, "invalid calltokenoptional (null)\n");
       return -1;
    }
 
    ha = ast_append_ha("permit", addr, NULL, &error);
 
    /* check for valid config information */
    if (error) {
       ast_log(LOG_WARNING, "Error %d creating calltokenoptional entry %s\n", error, addr);
       return -1;
    }
 
    ast_copy_ha(ha, &tmp.ha);
    /* find or create the addr_range */
    if ((addr_range = ao2_find(calltoken_ignores, &tmp, OBJ_POINTER))) {
       ao2_lock(addr_range);
       addr_range->delme = 0;
       ao2_unlock(addr_range);
    } else if ((addr_range = ao2_alloc(sizeof(*addr_range), NULL))) {
       /* copy over config data into addr_range object */
       ast_copy_ha(ha, &addr_range->ha); /* this is safe because only one ha is possible */
       ao2_link(calltoken_ignores, addr_range);
    } else {
       ast_free_ha(ha);
       return -1;
    }
 
    ast_free_ha(ha);
    ao2_ref(addr_range, -1); /* decrement ref from ao2_find and ao2_alloc, only container ref remains */
 
    return 0;
 }

◆ add_empty_calltoken_ie()

static void add_empty_calltoken_ie	(	struct chan_iax2_pvt *	pvt,
		struct iax_ie_data *	ied
	)

static

Definition at line 4800 of file chan_iax2.c.

References iax_ie_data::buf, chan_iax2_pvt::calltoken_ie_len, IAX_IE_CALLTOKEN, and iax_ie_data::pos.

Referenced by cache_get_callno_locked(), iax2_call(), iax2_do_register(), iax2_poke_peer(), and registry_rerequest().

 {
    /* first make sure their are two empty bytes left in ied->buf */
    if (pvt && ied && (2 < ((int) sizeof(ied->buf) - ied->pos))) {
       ied->buf[ied->pos++] = IAX_IE_CALLTOKEN;  /* type */
       ied->buf[ied->pos++] = 0;   /* data size,  ZERO in this case */
       pvt->calltoken_ie_len = 2;
    }
 }

◆ addr_range_cmp_cb()

static int addr_range_cmp_cb	(	void *	obj,
		void *	arg,
		int	flags
	)

static

Definition at line 2451 of file chan_iax2.c.

References ast_ha::addr, ast_sockaddr_cmp_addr(), CMP_MATCH, CMP_STOP, addr_range::ha, and ast_ha::netmask.

Referenced by load_objects().

 {
    struct addr_range *lim1 = obj, *lim2 = arg;
    return (!(ast_sockaddr_cmp_addr(&lim1->ha.addr, &lim2->ha.addr)) &&
          !(ast_sockaddr_cmp_addr(&lim1->ha.netmask, &lim2->ha.netmask))) ?
          CMP_MATCH | CMP_STOP : 0;
 }

◆ addr_range_delme_cb()

static int addr_range_delme_cb	(	void *	obj,
		void *	arg,
		int	flags
	)

static

Definition at line 2438 of file chan_iax2.c.

References addr_range::delme.

Referenced by set_config_destroy().

 {
    struct addr_range *lim = obj;
    lim->delme = 1;
    return 0;
 }

◆ addr_range_hash_cb()

static int addr_range_hash_cb	(	const void *	obj,
		const int	flags
	)

static

Definition at line 2445 of file chan_iax2.c.

References abs, ast_ha::addr, ast_sockaddr_hash(), and addr_range::ha.

Referenced by load_objects().

 {
    const struct addr_range *lim = obj;
    return abs(ast_sockaddr_hash(&lim->ha.addr));
 }

◆ addr_range_match_address_cb()

static int addr_range_match_address_cb	(	void *	obj,
		void *	arg,
		int	flags
	)

static

Definition at line 2475 of file chan_iax2.c.

References ast_ha::addr, ast_sockaddr_apply_netmask(), ast_sockaddr_cmp_addr(), CMP_MATCH, CMP_STOP, addr_range::ha, and ast_ha::netmask.

Referenced by calltoken_required(), and set_peercnt_limit().

 {
    struct addr_range *addr_range = obj;
    struct ast_sockaddr *addr = arg;
    struct ast_sockaddr tmp_addr;
 
    ast_sockaddr_apply_netmask(addr, &addr_range->ha.netmask, &tmp_addr);
 
    if (!ast_sockaddr_cmp_addr(&tmp_addr, &addr_range->ha.addr)) {
       return CMP_MATCH | CMP_STOP;
    }
    return 0;
 }

◆ apply_context()

static int apply_context	(	struct iax2_context *	con,
		const char *	context
	)

static

Definition at line 7776 of file chan_iax2.c.

References iax2_context::context, and iax2_context::next.

Referenced by check_access().

 {
    while(con) {
       if (!strcmp(con->context, context) || !strcmp(con->context, "*"))
          return -1;
       con = con->next;
    }
    return 0;
 }

◆ ast_cli_netstats()

static int ast_cli_netstats	(	struct mansession *	s,
		int	fd,
		int	limit_fmt
	)

static

Definition at line 7477 of file chan_iax2.c.

References ACN_FORMAT1, ACN_FORMAT2, ARRAY_LEN, ast_channel_name(), ast_cli(), ast_mutex_lock, ast_mutex_unlock, ast_test_flag64, astman_append(), jb_info::current, iax_rr::delay, iax_rr::dropped, chan_iax2_pvt::first_iax_message, jb_info::frames_dropped, jb_info::frames_lost, jb_info::frames_ooo, iax_frame_subclass2str(), IAX_USEJITTERBUF, jb_getinfo(), jb_info::jitter, chan_iax2_pvt::last_iax_message, iax_rr::losscnt, jb_info::losspct, iax_rr::losspct, MARK_IAX_SUBCLASS_TX, jb_info::min, iax_rr::ooo, iax_rr::packets, and chan_iax2_pvt::remote_rr.

Referenced by handle_cli_iax2_show_netstats(), and manager_iax2_show_netstats().

 {
    int x;
    int numchans = 0;
    char first_message[10] = { 0, };
    char last_message[10] = { 0, };
 #define ACN_FORMAT1 "%-20.25s %4u %4d %4d %5d %3d %5d %4d %6d %4d %4d %5d %3d %5d %4d %6d %s%s %4s%s\n"
 #define ACN_FORMAT2 "%s %u %d %d %d %d %d %d %d %d %d %d %d %d %d %d %s%s %s%s\n"
    for (x = 0; x < ARRAY_LEN(iaxs); x++) {
       ast_mutex_lock(&iaxsl[x]);
       if (iaxs[x]) {
          int localjitter, localdelay, locallost, locallosspct, localdropped, localooo;
          jb_info jbinfo;
          iax_frame_subclass2str(iaxs[x]->first_iax_message & ~MARK_IAX_SUBCLASS_TX, first_message, sizeof(first_message));
          iax_frame_subclass2str(iaxs[x]->last_iax_message & ~MARK_IAX_SUBCLASS_TX, last_message, sizeof(last_message));
 
          if(ast_test_flag64(iaxs[x], IAX_USEJITTERBUF)) {
             jb_getinfo(iaxs[x]->jb, &jbinfo);
             localjitter = jbinfo.jitter;
             localdelay = jbinfo.current - jbinfo.min;
             locallost = jbinfo.frames_lost;
             locallosspct = jbinfo.losspct/1000;
             localdropped = jbinfo.frames_dropped;
             localooo = jbinfo.frames_ooo;
          } else {
             localjitter = -1;
             localdelay = 0;
             locallost = -1;
             locallosspct = -1;
             localdropped = 0;
             localooo = -1;
          }
          if (s)
             astman_append(s, limit_fmt ? ACN_FORMAT1 : ACN_FORMAT2,
                iaxs[x]->owner ? ast_channel_name(iaxs[x]->owner) : "(None)",
                iaxs[x]->pingtime,
                localjitter,
                localdelay,
                locallost,
                locallosspct,
                localdropped,
                localooo,
                iaxs[x]->frames_received/1000,
                iaxs[x]->remote_rr.jitter,
                iaxs[x]->remote_rr.delay,
                iaxs[x]->remote_rr.losscnt,
                iaxs[x]->remote_rr.losspct,
                iaxs[x]->remote_rr.dropped,
                iaxs[x]->remote_rr.ooo,
                iaxs[x]->remote_rr.packets/1000,
                (iaxs[x]->first_iax_message & MARK_IAX_SUBCLASS_TX) ? "Tx:" : "Rx:",
                first_message,
                (iaxs[x]->last_iax_message & MARK_IAX_SUBCLASS_TX) ? "Tx:" : "Rx:",
                last_message);
          else
             ast_cli(fd, limit_fmt ? ACN_FORMAT1 : ACN_FORMAT2,
                iaxs[x]->owner ? ast_channel_name(iaxs[x]->owner) : "(None)",
                iaxs[x]->pingtime,
                localjitter,
                localdelay,
                locallost,
                locallosspct,
                localdropped,
                localooo,
                iaxs[x]->frames_received/1000,
                iaxs[x]->remote_rr.jitter,
                iaxs[x]->remote_rr.delay,
                iaxs[x]->remote_rr.losscnt,
                iaxs[x]->remote_rr.losspct,
                iaxs[x]->remote_rr.dropped,
                iaxs[x]->remote_rr.ooo,
                iaxs[x]->remote_rr.packets/1000,
                (iaxs[x]->first_iax_message & MARK_IAX_SUBCLASS_TX) ? "Tx:" : "Rx:",
                first_message,
                (iaxs[x]->last_iax_message & MARK_IAX_SUBCLASS_TX) ? "Tx:" : "Rx:",
                last_message);
          numchans++;
       }
       ast_mutex_unlock(&iaxsl[x]);
    }
 
    return numchans;
 }

◆ ast_iax2_new()

static struct ast_channel* ast_iax2_new	(	int	callno,
		int	state,
		iax2_format	capability,
		struct iax2_codec_pref *	prefs,
		const struct ast_assigned_ids *	assignedids,
		const struct ast_channel *	requestor,
		unsigned int	cachable
	)

static

Create new call, interface with the PBX core.

Definition at line 5829 of file chan_iax2.c.

References chan_iax2_pvt::accountcode, chan_iax2_pvt::adsi, chan_iax2_pvt::amaflags, ast_party_caller::ani, chan_iax2_pvt::ani, ao2_cleanup, ao2_ref, AST_ADSI_UNAVAILABLE, ast_calloc, ast_channel_adsicpe_set(), ast_channel_alloc, ast_channel_alloc_with_endpoint, ast_channel_amaflags_set(), ast_channel_caller(), ast_channel_callid_set(), ast_channel_context_set(), ast_channel_datastore_add(), ast_channel_dialed(), ast_channel_exten_set(), ast_channel_flags(), ast_channel_name(), ast_channel_nativeformats_set(), ast_channel_redirecting(), ast_channel_release(), ast_channel_set_rawreadformat(), ast_channel_set_rawwriteformat(), ast_channel_set_readformat(), ast_channel_set_writeformat(), ast_channel_stage_snapshot(), ast_channel_stage_snapshot_done(), ast_channel_tech_pvt_set(), ast_channel_tech_set(), ast_channel_unlock, ast_datastore_alloc, ast_datastore_free(), ast_debug, AST_FLAG_DISABLE_DEVSTATE_CACHE, ast_format_cap_alloc, ast_format_cap_count(), AST_FORMAT_CAP_FLAG_DEFAULT, ast_format_cap_get_format(), ast_free, ast_hangup(), AST_LIST_HEAD, AST_LIST_HEAD_INIT, AST_LIST_INSERT_TAIL, ast_log, ast_module_ref, ast_mutex_lock, ast_mutex_unlock, ast_pbx_start(), ast_set_flag, AST_STATE_DOWN, ast_strdup, ast_strdupa, ast_strlen_zero, ast_var_assign, chan_iax2_pvt::calling_pres, chan_iax2_pvt::calling_tns, chan_iax2_pvt::calling_ton, chan_iax2_pvt::callno, CALLNO_TO_PTR, chan_iax2_pvt::capability, chan_iax2_pvt::cid_name, chan_iax2_pvt::cid_num, chan_iax2_pvt::context, ast_datastore::data, DATASTORE_INHERIT_FOREVER, chan_iax2_pvt::dnid, iax2_peer::endpoint, ast_var_t::entries, chan_iax2_pvt::exten, find_peer(), ast_party_redirecting::from, chan_iax2_pvt::host, iax2_codec_pref_best_bitfield2cap(), chan_iax2_pvt::iaxvars, ast_party_caller::id, ast_datastore::inheritance, chan_iax2_pvt::language, LOG_ERROR, LOG_WARNING, ast_variable::name, ast_party_id::name, ast_variable::next, NULL, ast_party_id::number, ast_party_dialed::number, chan_iax2_pvt::owner, chan_iax2_pvt::parkinglot, pbx_builtin_setvar_helper(), chan_iax2_pvt::peer, chan_iax2_pvt::peeradsicpe, ast_party_number::plan, ast_party_name::presentation, ast_party_number::presentation, chan_iax2_pvt::rdnis, ast_module_info::self, ast_party_number::str, ast_party_dialed::str, tmp(), ast_party_dialed::transit_network_select, ast_party_number::valid, ast_variable::value, var, and chan_iax2_pvt::vars.

Referenced by iax2_request(), and socket_process_helper().

 {
    struct ast_channel *tmp = NULL;
    struct chan_iax2_pvt *i;
    struct iax2_peer *peer;
    struct ast_variable *v = NULL;
    struct ast_format_cap *native;
    struct ast_format *tmpfmt;
    ast_callid callid;
    char *peer_name = NULL;
 
    if (!(i = iaxs[callno])) {
       ast_log(LOG_WARNING, "No IAX2 pvt found for callno '%d' !\n", callno);
       return NULL;
    }
 
    if (!capability) {
       ast_log(LOG_WARNING, "No formats specified for call to: IAX2/%s-%d\n",
          i->host, i->callno);
       return NULL;
    }
    native = ast_format_cap_alloc(AST_FORMAT_CAP_FLAG_DEFAULT);
    if (!native) {
       return NULL;
    }
    if (iax2_codec_pref_best_bitfield2cap(capability, prefs, native)
       || !ast_format_cap_count(native)) {
       ast_log(LOG_WARNING, "No requested formats available for call to: IAX2/%s-%d\n",
          i->host, i->callno);
       ao2_ref(native, -1);
       return NULL;
    }
 
    if (!ast_strlen_zero(i->peer)) {
       peer_name = ast_strdupa(i->peer);
    } else if (!ast_strlen_zero(i->host)) {
       peer_name = ast_strdupa(i->host);
    }
 
    /* Don't hold call lock while making a channel or looking up a peer */
    ast_mutex_unlock(&iaxsl[callno]);
 
    if (!ast_strlen_zero(peer_name)) {
       peer = find_peer(peer_name, 1);
       if (peer && peer->endpoint) {
          tmp = ast_channel_alloc_with_endpoint(1, state, i->cid_num, i->cid_name,
             i->accountcode, i->exten, i->context, assignedids, requestor,
             i->amaflags, peer->endpoint, "IAX2/%s-%d", i->host, i->callno);
       }
       ao2_cleanup(peer);
    }
 
    if (!tmp) {
       tmp = ast_channel_alloc(1, state, i->cid_num, i->cid_name, i->accountcode,
          i->exten, i->context, assignedids, requestor, i->amaflags, "IAX2/%s-%d",
          i->host, i->callno);
    }
 
    ast_mutex_lock(&iaxsl[callno]);
    if (i != iaxs[callno]) {
       if (tmp) {
          /* unlock and relock iaxsl[callno] to preserve locking order */
          ast_mutex_unlock(&iaxsl[callno]);
          ast_channel_unlock(tmp);
          tmp = ast_channel_release(tmp);
          ast_mutex_lock(&iaxsl[callno]);
       }
       ao2_ref(native, -1);
       return NULL;
    }
    if (!tmp) {
       ao2_ref(native, -1);
       return NULL;
    }
 
    ast_channel_stage_snapshot(tmp);
 
    if ((callid = iaxs[callno]->callid)) {
       ast_channel_callid_set(tmp, callid);
    }
 
    ast_channel_tech_set(tmp, &iax2_tech);
 
    /* We can support any format by default, until we get restricted */
    ast_channel_nativeformats_set(tmp, native);
    tmpfmt = ast_format_cap_get_format(native, 0);
 
    ast_channel_set_readformat(tmp, tmpfmt);
    ast_channel_set_rawreadformat(tmp, tmpfmt);
    ast_channel_set_writeformat(tmp, tmpfmt);
    ast_channel_set_rawwriteformat(tmp, tmpfmt);
 
    ao2_ref(tmpfmt, -1);
    ao2_ref(native, -1);
 
    ast_channel_tech_pvt_set(tmp, CALLNO_TO_PTR(i->callno));
 
    if (!ast_strlen_zero(i->parkinglot))
       ast_channel_parkinglot_set(tmp, i->parkinglot);
    /* Don't use ast_set_callerid() here because it will
     * generate a NewCallerID event before the NewChannel event */
    if (!ast_strlen_zero(i->ani)) {
       ast_channel_caller(tmp)->ani.number.valid = 1;
       ast_channel_caller(tmp)->ani.number.str = ast_strdup(i->ani);
    } else if (!ast_strlen_zero(i->cid_num)) {
       ast_channel_caller(tmp)->ani.number.valid = 1;
       ast_channel_caller(tmp)->ani.number.str = ast_strdup(i->cid_num);
    }
    ast_channel_dialed(tmp)->number.str = ast_strdup(i->dnid);
    if (!ast_strlen_zero(i->rdnis)) {
       ast_channel_redirecting(tmp)->from.number.valid = 1;
       ast_channel_redirecting(tmp)->from.number.str = ast_strdup(i->rdnis);
    }
    ast_channel_caller(tmp)->id.name.presentation = i->calling_pres;
    ast_channel_caller(tmp)->id.number.presentation = i->calling_pres;
    ast_channel_caller(tmp)->id.number.plan = i->calling_ton;
    ast_channel_dialed(tmp)->transit_network_select = i->calling_tns;
    if (!ast_strlen_zero(i->language))
       ast_channel_language_set(tmp, i->language);
    if (!ast_strlen_zero(i->accountcode))
       ast_channel_accountcode_set(tmp, i->accountcode);
    if (i->amaflags)
       ast_channel_amaflags_set(tmp, i->amaflags);
    ast_channel_context_set(tmp, i->context);
    ast_channel_exten_set(tmp, i->exten);
    if (i->adsi)
       ast_channel_adsicpe_set(tmp, i->peeradsicpe);
    else
       ast_channel_adsicpe_set(tmp, AST_ADSI_UNAVAILABLE);
    i->owner = tmp;
    i->capability = capability;
 
    if (!cachable) {
       ast_set_flag(ast_channel_flags(tmp), AST_FLAG_DISABLE_DEVSTATE_CACHE);
    }
 
    /* Set inherited variables */
    if (i->vars) {
       for (v = i->vars ; v ; v = v->next)
          pbx_builtin_setvar_helper(tmp, v->name, v->value);
    }
    if (i->iaxvars) {
       struct ast_datastore *variablestore;
       struct ast_variable *var, *prev = NULL;
       AST_LIST_HEAD(, ast_var_t) *varlist;
       ast_debug(1, "Loading up the channel with IAXVARs\n");
       varlist = ast_calloc(1, sizeof(*varlist));
       variablestore = ast_datastore_alloc(&iax2_variable_datastore_info, NULL);
       if (variablestore && varlist) {
          variablestore->data = varlist;
          variablestore->inheritance = DATASTORE_INHERIT_FOREVER;
          AST_LIST_HEAD_INIT(varlist);
          for (var = i->iaxvars; var; var = var->next) {
             struct ast_var_t *newvar = ast_var_assign(var->name, var->value);
             if (prev)
                ast_free(prev);
             prev = var;
             if (!newvar) {
                /* Don't abort list traversal, as this would leave i->iaxvars in an inconsistent state. */
                ast_log(LOG_ERROR, "Memory allocation error while processing IAX2 variables\n");
             } else {
                AST_LIST_INSERT_TAIL(varlist, newvar, entries);
             }
          }
          if (prev)
             ast_free(prev);
          i->iaxvars = NULL;
          ast_channel_datastore_add(i->owner, variablestore);
       } else {
          if (variablestore) {
             ast_datastore_free(variablestore);
          }
          if (varlist) {
             ast_free(varlist);
          }
       }
    }
 
    ast_channel_stage_snapshot_done(tmp);
    ast_channel_unlock(tmp);
 
    if (state != AST_STATE_DOWN) {
       if (ast_pbx_start(tmp)) {
          ast_log(LOG_WARNING, "Unable to start PBX on %s\n", ast_channel_name(tmp));
          /* unlock and relock iaxsl[callno] to preserve locking order */
          ast_mutex_unlock(&iaxsl[callno]);
          ast_hangup(tmp);
          ast_mutex_lock(&iaxsl[callno]);
          return NULL;
       }
    }
 
    ast_module_ref(ast_module_info->self);
    return tmp;
 }

◆ AST_MODULE_SELF_SYM()

struct ast_module* AST_MODULE_SELF_SYM ( void )

Definition at line 14974 of file chan_iax2.c.

◆ attempt_transmit()

static int attempt_transmit ( const void * data )

static

Definition at line 3631 of file chan_iax2.c.

References __attempt_transmit(), and schedule_action.

Referenced by update_packet().

 {
 #ifdef SCHED_MULTITHREADED
    if (schedule_action(__attempt_transmit, data))
 #endif
       __attempt_transmit(data);
    return 0;
 }

◆ auth_fail()

static int auth_fail	(	int	callno,
		int	failcode
	)

static

Definition at line 9316 of file chan_iax2.c.

References auth_reject(), chan_iax2_pvt::authfail, chan_iax2_pvt::authid, delayreject, and iax2_sched_replace().

Referenced by socket_process_helper().

 {
    /* Schedule sending the authentication failure in one second, to prevent
       guessing */
    if (iaxs[callno]) {
       iaxs[callno]->authfail = failcode;
       if (delayreject) {
          iaxs[callno]->authid = iax2_sched_replace(iaxs[callno]->authid,
             sched, 1000, auth_reject, (void *)(long)callno);
       } else
          auth_reject((void *)(long)callno);
    }
    return 0;
 }

◆ auth_reject()

static int auth_reject ( const void * data )

static

Definition at line 9302 of file chan_iax2.c.

References __auth_reject(), ast_mutex_lock, ast_mutex_unlock, chan_iax2_pvt::authid, stasis_subscription::data, and schedule_action.

Referenced by auth_fail().

 {
    int callno = (int)(long)(data);
    ast_mutex_lock(&iaxsl[callno]);
    if (iaxs[callno])
       iaxs[callno]->authid = -1;
    ast_mutex_unlock(&iaxsl[callno]);
 #ifdef SCHED_MULTITHREADED
    if (schedule_action(__auth_reject, data))
 #endif
       __auth_reject(data);
    return 0;
 }

◆ authenticate()

static int authenticate	(	const char *	challenge,
		const char *	secret,
		const char *	keyn,
		int	authmethods,
		struct iax_ie_data *	ied,
		struct ast_sockaddr *	addr,
		struct chan_iax2_pvt *	pvt
	)

static

Definition at line 8351 of file chan_iax2.c.

References ast_key_get(), AST_KEY_PRIVATE, ast_log, ast_sign(), ast_sockaddr_stringify_addr(), ast_strlen_zero, build_encryption_keys(), IAX_AUTH_MD5, IAX_AUTH_PLAINTEXT, IAX_AUTH_RSA, iax_ie_append_str(), IAX_IE_MD5_RESULT, IAX_IE_PASSWORD, IAX_IE_RSA_RESULT, LOG_NOTICE, MD5Final(), MD5Init(), and MD5Update().

Referenced by authenticate_reply(), and registry_rerequest().

 {
    int res = -1;
    int x;
    if (!ast_strlen_zero(keyn)) {
       if (!(authmethods & IAX_AUTH_RSA)) {
          if (ast_strlen_zero(secret)) {
             ast_log(LOG_NOTICE, "Asked to authenticate to %s with an RSA key, but they don't allow RSA authentication\n", ast_sockaddr_stringify_addr(addr));
          }
       } else if (ast_strlen_zero(challenge)) {
          ast_log(LOG_NOTICE, "No challenge provided for RSA authentication to %s\n", ast_sockaddr_stringify_addr(addr));
       } else {
          char sig[256];
          struct ast_key *key;
          key = ast_key_get(keyn, AST_KEY_PRIVATE);
          if (!key) {
             ast_log(LOG_NOTICE, "Unable to find private key '%s'\n", keyn);
          } else {
             if (ast_sign(key, (char*)challenge, sig)) {
                ast_log(LOG_NOTICE, "Unable to sign challenge with key\n");
                res = -1;
             } else {
                iax_ie_append_str(ied, IAX_IE_RSA_RESULT, sig);
                res = 0;
             }
          }
 
       }
    }
    /* Fall back */
    if (res && !ast_strlen_zero(secret)) {
       if ((authmethods & IAX_AUTH_MD5) && !ast_strlen_zero(challenge)) {
          struct MD5Context md5;
          unsigned char digest[16];
          char digres[128];
          MD5Init(&md5);
          MD5Update(&md5, (unsigned char *)challenge, strlen(challenge));
          MD5Update(&md5, (unsigned char *)secret, strlen(secret));
          MD5Final(digest, &md5);
          /* If they support md5, authenticate with it.  */
          for (x=0;x<16;x++)
             sprintf(digres + (x << 1),  "%02hhx", digest[x]); /* safe */
          if (pvt) {
             build_encryption_keys(digest, pvt);
          }
          iax_ie_append_str(ied, IAX_IE_MD5_RESULT, digres);
          res = 0;
       } else if (authmethods & IAX_AUTH_PLAINTEXT) {
          iax_ie_append_str(ied, IAX_IE_PASSWORD, secret);
          res = 0;
       } else
          ast_log(LOG_NOTICE, "No way to send secret to peer '%s' (their methods: %d)\n", ast_sockaddr_stringify_addr(addr), authmethods);
    }
    return res;
 }

◆ authenticate_reply()

static int authenticate_reply	(	struct chan_iax2_pvt *	p,
		struct ast_sockaddr *	addr,
		struct iax_ies *	ies,
		const char *	override,
		const char *	okey
	)

static

Note: This function calls realtime_peer -> reg_source_db -> iax2_poke_peer -> find_callno, so do not call this function with a pvt lock held.

Definition at line 8411 of file chan_iax2.c.

References iax2_peer::addr, ao2_iterator_destroy(), ao2_iterator_init(), ao2_iterator_next, ast_calloc, ast_channel_datastore_add(), ast_datastore_alloc, ast_datastore_free(), AST_FRAME_IAX, ast_free, AST_LIST_HEAD, AST_LIST_HEAD_INIT, AST_LIST_INSERT_TAIL, ast_log, ast_mutex_lock, ast_mutex_unlock, ast_set_flag64, ast_sockaddr_apply_netmask(), ast_sockaddr_cmp_addr(), ast_sockaddr_copy(), ast_sockaddr_isnull(), ast_strdupa, ast_string_field_set, ast_strlen_zero, ast_test_flag64, ast_var_assign, authenticate(), iax_ies::authmethods, iax2_peer::authmethods, iax_ie_data::buf, chan_iax2_pvt::callno, iax_ies::challenge, challenge(), chan_iax2_pvt::challenge, ast_datastore::data, DATASTORE_INHERIT_FOREVER, iax_ies::encmethods, chan_iax2_pvt::encmethods, ast_var_t::entries, iax2_do_register(), IAX_AUTH_MD5, IAX_AUTH_PLAINTEXT, IAX_COMMAND_AUTHREP, IAX_ENCRYPTED, IAX_FORCE_ENCRYPT, IAX_KEYPOPULATED, ast_datastore::inheritance, LOG_ERROR, LOG_NOTICE, LOG_WARNING, iax2_peer::mask, merge_encryption(), ast_variable::name, iax2_peer::name, ast_variable::next, NULL, iax2_peer::outkey, chan_iax2_pvt::owner, chan_iax2_pvt::peer, peer_unref(), iax_ie_data::pos, realtime_peer(), iax2_peer::secret, chan_iax2_pvt::secret, send_command(), iax_ies::username, iax2_peer::username, chan_iax2_pvt::username, ast_variable::value, var, and iax_ies::vars.

Referenced by socket_process_helper().

 {
    struct iax2_peer *peer = NULL;
    /* Start pessimistic */
    int res = -1;
    int authmethods = 0;
    struct iax_ie_data ied;
    uint16_t callno = p->callno;
 
    memset(&ied, 0, sizeof(ied));
 
    if (ies->username)
       ast_string_field_set(p, username, ies->username);
    if (ies->challenge)
       ast_string_field_set(p, challenge, ies->challenge);
    if (ies->authmethods)
       authmethods = ies->authmethods;
    if (authmethods & IAX_AUTH_MD5)
       merge_encryption(p, ies->encmethods);
    else
       p->encmethods = 0;
 
    /* Check for override RSA authentication first */
    if (!ast_strlen_zero(override) || !ast_strlen_zero(okey)) {
       /* Normal password authentication */
       res = authenticate(p->challenge, override, okey, authmethods, &ied, addr, p);
    } else {
       struct ao2_iterator i = ao2_iterator_init(peers, 0);
       while ((peer = ao2_iterator_next(&i))) {
          struct ast_sockaddr peer_addr;
          struct ast_sockaddr tmp_sockaddr1;
          struct ast_sockaddr tmp_sockaddr2;
 
          ast_sockaddr_copy(&peer_addr, &peer->addr);
 
          ast_sockaddr_apply_netmask(addr, &peer->mask, &tmp_sockaddr1);
          ast_sockaddr_apply_netmask(&peer_addr, &peer->mask, &tmp_sockaddr2);
 
          if ((ast_strlen_zero(p->peer) || !strcmp(p->peer, peer->name))
             /* No peer specified at our end, or this is the peer */
              && (ast_strlen_zero(peer->username) || (!strcmp(peer->username, p->username)))
              /* No username specified in peer rule, or this is the right username */
              && (ast_sockaddr_isnull(&peer_addr) || !(ast_sockaddr_cmp_addr(&tmp_sockaddr1, &tmp_sockaddr2)))
              /* No specified host, or this is our host */
             ) {
             res = authenticate(p->challenge, peer->secret, peer->outkey, authmethods, &ied, addr, p);
             if (!res) {
                peer_unref(peer);
                break;
             }
          }
          peer_unref(peer);
       }
       ao2_iterator_destroy(&i);
       if (!peer) {
          /* We checked our list and didn't find one.  It's unlikely, but possible,
             that we're trying to authenticate *to* a realtime peer */
          const char *peer_name = ast_strdupa(p->peer);
          ast_mutex_unlock(&iaxsl[callno]);
          if ((peer = realtime_peer(peer_name, NULL))) {
             ast_mutex_lock(&iaxsl[callno]);
             if (!(p = iaxs[callno])) {
                peer_unref(peer);
                return -1;
             }
             res = authenticate(p->challenge, peer->secret,peer->outkey, authmethods, &ied, addr, p);
             peer_unref(peer);
          }
          if (!peer) {
             ast_mutex_lock(&iaxsl[callno]);
             if (!(p = iaxs[callno]))
                return -1;
          }
       }
    }
 
    if (ies->encmethods) {
       if (ast_strlen_zero(p->secret) &&
          ((ies->authmethods & IAX_AUTH_MD5) || (ies->authmethods & IAX_AUTH_PLAINTEXT))) {
          ast_log(LOG_WARNING, "Call terminated. Encryption requested by peer but no secret available locally\n");
          return -1;
       }
       ast_set_flag64(p, IAX_ENCRYPTED | IAX_KEYPOPULATED);
    } else if (ast_test_flag64(iaxs[callno], IAX_FORCE_ENCRYPT)) {
       ast_log(LOG_NOTICE, "Call initiated without encryption while forceencryption=yes option is set\n");
       return -1;             /* if force encryption is yes, and no encryption methods, then return -1 to hangup */
    }
    if (!res) {
       struct ast_datastore *variablestore;
       struct ast_variable *var, *prev = NULL;
       AST_LIST_HEAD(, ast_var_t) *varlist;
       varlist = ast_calloc(1, sizeof(*varlist));
       variablestore = ast_datastore_alloc(&iax2_variable_datastore_info, NULL);
       if (variablestore && varlist && p->owner) {
          variablestore->data = varlist;
          variablestore->inheritance = DATASTORE_INHERIT_FOREVER;
          AST_LIST_HEAD_INIT(varlist);
          for (var = ies->vars; var; var = var->next) {
             struct ast_var_t *newvar = ast_var_assign(var->name, var->value);
             if (prev)
                ast_free(prev);
             prev = var;
             if (!newvar) {
                /* Don't abort list traversal, as this would leave ies->vars in an inconsistent state. */
                ast_log(LOG_ERROR, "Memory allocation error while processing IAX2 variables\n");
             } else {
                AST_LIST_INSERT_TAIL(varlist, newvar, entries);
             }
          }
          if (prev)
             ast_free(prev);
          ies->vars = NULL;
          ast_channel_datastore_add(p->owner, variablestore);
       } else {
          if (p->owner)
             ast_log(LOG_ERROR, "Memory allocation error while processing IAX2 variables\n");
          if (variablestore)
             ast_datastore_free(variablestore);
          if (varlist)
             ast_free(varlist);
       }
    }
 
    if (!res)
       res = send_command(p, AST_FRAME_IAX, IAX_COMMAND_AUTHREP, 0, ied.buf, ied.pos, -1);
    return res;
 }

◆ authenticate_request()

static int authenticate_request ( int call_num )

static

Precondition: iaxsl[call_num] is locked

Note: Since this function calls send_command_final(), the pvt struct for the given call number may disappear while executing this function.

Definition at line 8055 of file chan_iax2.c.

References ao2_find, AST_CAUSE_CALL_REJECTED, AST_FRAME_IAX, ast_random(), ast_set_flag64, ast_string_field_set, ast_test_flag64, chan_iax2_pvt::authmethods, iax_ie_data::buf, challenge(), chan_iax2_pvt::challenge, iax2_user::curauthreq, chan_iax2_pvt::encmethods, IAX_AUTH_MD5, IAX_AUTH_RSA, IAX_COMMAND_AUTHREQ, IAX_COMMAND_REJECT, IAX_ENCRYPTED, iax_ie_append_byte(), iax_ie_append_short(), iax_ie_append_str(), IAX_IE_AUTHMETHODS, IAX_IE_CAUSE, IAX_IE_CAUSECODE, IAX_IE_CHALLENGE, IAX_IE_ENCRYPTION, IAX_IE_USERNAME, IAX_MAXAUTHREQ, iax2_user::maxauthreq, OBJ_KEY, iax_ie_data::pos, send_command(), send_command_final(), user, user_unref(), and chan_iax2_pvt::username.

Referenced by socket_process_helper().

 {
    struct iax_ie_data ied;
    int res = -1, authreq_restrict = 0;
    char challenge[10];
    struct chan_iax2_pvt *p = iaxs[call_num];
 
    memset(&ied, 0, sizeof(ied));
 
    /* If an AUTHREQ restriction is in place, make sure we can send an AUTHREQ back */
    if (ast_test_flag64(p, IAX_MAXAUTHREQ)) {
       struct iax2_user *user;
 
       user = ao2_find(users, p->username, OBJ_KEY);
       if (user) {
          if (user->curauthreq == user->maxauthreq)
             authreq_restrict = 1;
          else
             user->curauthreq++;
          user = user_unref(user);
       }
    }
 
    /* If the AUTHREQ limit test failed, send back an error */
    if (authreq_restrict) {
       iax_ie_append_str(&ied, IAX_IE_CAUSE, "Unauthenticated call limit reached");
       iax_ie_append_byte(&ied, IAX_IE_CAUSECODE, AST_CAUSE_CALL_REJECTED);
       send_command_final(p, AST_FRAME_IAX, IAX_COMMAND_REJECT, 0, ied.buf, ied.pos, -1);
       return 0;
    }
 
    iax_ie_append_short(&ied, IAX_IE_AUTHMETHODS, p->authmethods);
    if (p->authmethods & (IAX_AUTH_MD5 | IAX_AUTH_RSA)) {
       snprintf(challenge, sizeof(challenge), "%d", (int)ast_random());
       ast_string_field_set(p, challenge, challenge);
       /* snprintf(p->challenge, sizeof(p->challenge), "%d", (int)ast_random()); */
       iax_ie_append_str(&ied, IAX_IE_CHALLENGE, p->challenge);
    }
    if (p->encmethods)
       iax_ie_append_short(&ied, IAX_IE_ENCRYPTION, p->encmethods);
 
    iax_ie_append_str(&ied,IAX_IE_USERNAME, p->username);
 
    res = send_command(p, AST_FRAME_IAX, IAX_COMMAND_AUTHREQ, 0, ied.buf, ied.pos, -1);
 
    if (p->encmethods)
       ast_set_flag64(p, IAX_ENCRYPTED);
 
    return res;
 }

◆ authenticate_verify()

static int authenticate_verify	(	struct chan_iax2_pvt *	p,
		struct iax_ies *	ies
	)

static

Definition at line 8106 of file chan_iax2.c.

References ao2_find, ast_atomic_fetchadd_int(), ast_check_signature(), ast_clear_flag64, ast_copy_string(), ast_free, ast_key_get(), AST_KEY_PUBLIC, ast_log, ast_strdup, ast_strdupa, ast_string_field_set, ast_strlen_zero, ast_test_flag, ast_test_flag64, chan_iax2_pvt::authmethods, chan_iax2_pvt::authrej, chan_iax2_pvt::challenge, iax2_user::curauthreq, chan_iax2_pvt::encmethods, host, IAX_AUTH_MD5, IAX_AUTH_PLAINTEXT, IAX_AUTH_RSA, IAX_FORCE_ENCRYPT, IAX_MAXAUTHREQ, IAX_STATE_AUTHENTICATED, chan_iax2_pvt::inkeys, LOG_ERROR, LOG_NOTICE, LOG_WARNING, iax_ies::md5_result, MD5Final(), MD5Init(), MD5Update(), iax2_user::name, NULL, OBJ_KEY, iax_ies::password, iax_ies::rsa_result, iax2_user::secret, chan_iax2_pvt::secret, chan_iax2_pvt::state, strsep(), user, user_unref(), and chan_iax2_pvt::username.

Referenced by socket_process_helper().

 {
    char requeststr[256];
    char md5secret[256] = "";
    char secret[256] = "";
    char rsasecret[256] = "";
    int res = -1;
    int x;
    struct iax2_user *user;
 
    if (p->authrej) {
       return res;
    }
 
    user = ao2_find(users, p->username, OBJ_KEY);
    if (user) {
       if (ast_test_flag64(p, IAX_MAXAUTHREQ)) {
          ast_atomic_fetchadd_int(&user->curauthreq, -1);
          ast_clear_flag64(p, IAX_MAXAUTHREQ);
       }
       ast_string_field_set(p, host, user->name);
       user = user_unref(user);
    }
    if (ast_test_flag64(p, IAX_FORCE_ENCRYPT) && !p->encmethods) {
       ast_log(LOG_NOTICE, "Call Terminated, Incoming call is unencrypted while force encrypt is enabled.\n");
       return res;
    }
    if (!ast_test_flag(&p->state, IAX_STATE_AUTHENTICATED))
       return res;
    if (ies->password)
       ast_copy_string(secret, ies->password, sizeof(secret));
    if (ies->md5_result)
       ast_copy_string(md5secret, ies->md5_result, sizeof(md5secret));
    if (ies->rsa_result)
       ast_copy_string(rsasecret, ies->rsa_result, sizeof(rsasecret));
    if ((p->authmethods & IAX_AUTH_RSA) && !ast_strlen_zero(rsasecret) && !ast_strlen_zero(p->inkeys)) {
       struct ast_key *key;
       char *keyn;
       char *tmpkey;
       char *stringp=NULL;
       if (!(tmpkey = ast_strdup(p->inkeys))) {
          ast_log(LOG_ERROR, "Unable to create a temporary string for parsing stored 'inkeys'\n");
          return res;
       }
       stringp = tmpkey;
       keyn = strsep(&stringp, ":");
       while(keyn) {
          key = ast_key_get(keyn, AST_KEY_PUBLIC);
          if (key && !ast_check_signature(key, p->challenge, rsasecret)) {
             res = 0;
             break;
          } else if (!key)
             ast_log(LOG_WARNING, "requested inkey '%s' for RSA authentication does not exist\n", keyn);
          keyn = strsep(&stringp, ":");
       }
       ast_free(tmpkey);
    } else if (p->authmethods & IAX_AUTH_MD5) {
       struct MD5Context md5;
       unsigned char digest[16];
       char *tmppw, *stringp;
       tmppw = ast_strdupa(p->secret);
       stringp = tmppw;
       while((tmppw = strsep(&stringp, ";"))) {
          MD5Init(&md5);
          MD5Update(&md5, (unsigned char *)p->challenge, strlen(p->challenge));
          MD5Update(&md5, (unsigned char *)tmppw, strlen(tmppw));
          MD5Final(digest, &md5);
          /* If they support md5, authenticate with it.  */
          for (x=0;x<16;x++)
             sprintf(requeststr + (x << 1), "%02hhx", digest[x]); /* safe */
          if (!strcasecmp(requeststr, md5secret)) {
             res = 0;
             break;
          }
       }
    } else if (p->authmethods & IAX_AUTH_PLAINTEXT) {
       if (!strcmp(secret, p->secret))
          res = 0;
    }
    return res;
 }

◆ auto_congest()

static int auto_congest ( const void * data )

static

Definition at line 4737 of file chan_iax2.c.

References __auto_congest(), and schedule_action.

Referenced by iax2_call().

 {
 #ifdef SCHED_MULTITHREADED
    if (schedule_action(__auto_congest, data))
 #endif
       __auto_congest(data);
    return 0;
 }

◆ auto_hangup()

static int auto_hangup ( const void * data )

static

Definition at line 9346 of file chan_iax2.c.

References __auto_hangup(), ast_mutex_lock, ast_mutex_unlock, chan_iax2_pvt::autoid, stasis_subscription::data, and schedule_action.

Referenced by iax2_dprequest(), and iax2_provision().

 {
    int callno = (int)(long)(data);
    ast_mutex_lock(&iaxsl[callno]);
    if (iaxs[callno]) {
       iaxs[callno]->autoid = -1;
    }
    ast_mutex_unlock(&iaxsl[callno]);
 #ifdef SCHED_MULTITHREADED
    if (schedule_action(__auto_hangup, data))
 #endif
       __auto_hangup(data);
    return 0;
 }

◆ build_callno_limits()

static void build_callno_limits ( struct ast_variable * v )

static

Definition at line 2740 of file chan_iax2.c.

References ao2_alloc, ao2_find, ao2_link, ao2_lock, ao2_ref, ao2_unlock, ast_append_ha(), ast_copy_ha(), ast_free_ha(), ast_log, addr_range::delme, error(), addr_range::ha, addr_range::limit, LOG_ERROR, ast_variable::name, ast_variable::next, NULL, OBJ_POINTER, and ast_variable::value.

Referenced by set_config().

 {
    struct addr_range *addr_range = NULL;
    struct addr_range tmp;
    struct ast_ha *ha;
    int limit;
    int error;
    int found;
 
    for (; v; v = v->next) {
       limit = -1;
       error = 0;
       found = 0;
       ha = ast_append_ha("permit", v->name, NULL, &error);
 
       /* check for valid config information */
       if (error) {
          ast_log(LOG_ERROR, "Call number limit for %s could not be added, Invalid address range\n.", v->name);
          continue;
       } else if ((sscanf(v->value, "%d", &limit) != 1) || (limit < 0)) {
          ast_log(LOG_ERROR, "Call number limit for %s could not be added. Invalid limit %s\n.", v->name, v->value);
          ast_free_ha(ha);
          continue;
       }
 
       ast_copy_ha(ha, &tmp.ha);
       /* find or create the addr_range */
       if ((addr_range = ao2_find(callno_limits, &tmp, OBJ_POINTER))) {
          ao2_lock(addr_range);
          found = 1;
       } else if (!(addr_range = ao2_alloc(sizeof(*addr_range), NULL))) {
          ast_free_ha(ha);
          return; /* out of memory */
       }
 
       /* copy over config data into addr_range object */
       ast_copy_ha(ha, &addr_range->ha); /* this is safe because only one ha is possible for each limit */
       ast_free_ha(ha); /* cleanup the tmp ha */
       addr_range->limit = limit;
       addr_range->delme = 0;
 
       /* cleanup */
       if (found) {
          ao2_unlock(addr_range);
       } else {
          ao2_link(callno_limits, addr_range);
       }
       ao2_ref(addr_range, -1); /* decrement ref from ao2_find and ao2_alloc, only container ref remains */
    }
 }

◆ build_context()

static struct iax2_context* build_context ( const char * context )

static

Definition at line 12647 of file chan_iax2.c.

References ast_calloc, ast_copy_string(), and iax2_context::context.

Referenced by build_user().

 {
    struct iax2_context *con;
 
    if ((con = ast_calloc(1, sizeof(*con))))
       ast_copy_string(con->context, context, sizeof(con->context));
 
    return con;
 }

◆ build_ecx_key()

static void build_ecx_key	(	const unsigned char *	digest,
		struct chan_iax2_pvt *	pvt
	)

static

Definition at line 6371 of file chan_iax2.c.

References ast_aes_set_decrypt_key(), ast_aes_set_encrypt_key(), build_rand_pad(), chan_iax2_pvt::ecx, chan_iax2_pvt::mydcx, and chan_iax2_pvt::semirand.

Referenced by build_encryption_keys(), iax2_key_rotate(), and jb_debug_output().

 {
    /* it is required to hold the corresponding decrypt key to our encrypt key
     * in the pvt struct because queued frames occasionally need to be decrypted and
     * re-encrypted when updated for a retransmission */
    build_rand_pad(pvt->semirand, sizeof(pvt->semirand));
    ast_aes_set_encrypt_key(digest, &pvt->ecx);
    ast_aes_set_decrypt_key(digest, &pvt->mydcx);
 }

◆ build_encryption_keys()

static void build_encryption_keys	(	const unsigned char *	digest,
		struct chan_iax2_pvt *	pvt
	)

static

Definition at line 6365 of file chan_iax2.c.

References ast_aes_set_decrypt_key(), build_ecx_key(), and chan_iax2_pvt::dcx.

Referenced by authenticate(), and decrypt_frame().

 {
    build_ecx_key(digest, pvt);
    ast_aes_set_decrypt_key(digest, &pvt->dcx);
 }

◆ build_peer()

static struct iax2_peer * build_peer	(	const char *	name,
		struct ast_variable *	v,
		struct ast_variable *	alt,
		int	temponly
	)

static

Create peer structure based on configuration.

Definition at line 12794 of file chan_iax2.c.

References iax2_peer::acl, acl_change_stasis_subscribe(), iax2_peer::addr, adsi, iax2_peer::adsi, ao2_alloc, ao2_find, AST_AF_UNSPEC, ast_append_acl(), ast_callerid_split(), ast_clear_flag64, ast_copy_flags64, ast_dnsmgr_lookup(), ast_dnsmgr_refresh(), ast_endpoint_create(), ast_false(), ast_free_acl_list(), ast_get_ip(), ast_log, ast_mwi_subscribe_pool(), ast_parse_arg(), AST_SCHED_DEL, ast_set2_flag64, ast_set_flag64, ast_set_flags_to64, ast_sockaddr_copy(), ast_sockaddr_is_ipv4_mapped(), ast_sockaddr_is_ipv6(), ast_sockaddr_isnull(), ast_sockaddr_parse(), ast_sockaddr_port, ast_sockaddr_set_port, ast_sockaddr_setnull(), ast_string_field_build, ast_string_field_init, ast_string_field_set, ast_strlen_zero, ast_test_flag64, ast_true(), iax2_peer::authmethods, CALLTOKEN_AUTO, CALLTOKEN_DEFAULT, CALLTOKEN_NO, iax2_peer::calltoken_required, CALLTOKEN_YES, iax2_peer::capability, cid_name, cid_num, context, iax2_peer::defaddr, DEFAULT_FREQ_NOTOK, DEFAULT_FREQ_OK, DEFAULT_MAXMS, defaultsockfd, iax2_peer::dnsmgr, iax2_peer::encmethods, iax2_peer::endpoint, iax2_peer::expire, iax2_peer::expiry, get_auth_methods(), get_encrypt_methods(), iax2_authmethods, iax2_capability, iax2_encryption, iax2_parse_allow_disallow(), IAX_AUTH_MD5, IAX_AUTH_PLAINTEXT, IAX_DEFAULT_PORTNO, IAX_DELME, IAX_DYNAMIC, IAX_FORCE_ENCRYPT, IAX_HASCALLERID, IAX_NOTRANSFER, IAX_RECVCONNECTEDLINE, IAX_SENDANI, IAX_SENDCONNECTEDLINE, IAX_TRANSFERMEDIA, IAX_TRUNK, IAX_USEJITTERBUF, ast_variable::lineno, LOG_WARNING, iax2_peer::mailbox, stasis_subscription::mailbox, iax2_peer::mask, iax2_peer::maxcallno, iax2_peer::maxms, min_reg_expire, mohinterpret, mohsuggest, iax2_peer::mwi_event_sub, ast_variable::name, iax2_peer::name, ast_variable::next, NULL, OBJ_KEY, PARSE_IN_RANGE, PARSE_UINT32, peer_destructor(), peer_set_srcaddr(), peer_unref(), peercnt_modify(), iax2_peer::pokeexpire, iax2_peer::pokefreqnotok, iax2_peer::pokefreqok, iax2_peer::prefs, prefs_global, S_OR, iax2_peer::smoothing, iax2_peer::sockfd, srvlookup, ast_sockaddr::ss, stasis_subscription_cb_noop(), unlink_peer(), ast_variable::value, and zonetag.

Referenced by jb_debug_output(), realtime_peer(), and set_config().

 {
    struct iax2_peer *peer = NULL;
    struct ast_acl_list *oldacl = NULL;
    int maskfound = 0;
    int found = 0;
    int firstpass = 1;
    int subscribe_acl_change = 0;
 
    if (!temponly) {
       peer = ao2_find(peers, name, OBJ_KEY);
       if (peer && !ast_test_flag64(peer, IAX_DELME))
          firstpass = 0;
    }
 
    if (peer) {
       found++;
       if (firstpass) {
          oldacl = peer->acl;
          peer->acl = NULL;
       }
       unlink_peer(peer);
    } else if ((peer = ao2_alloc(sizeof(*peer), peer_destructor))) {
       peer->expire = -1;
       peer->pokeexpire = -1;
       peer->sockfd = defaultsockfd;
       if (ast_string_field_init(peer, 32))
          peer = peer_unref(peer);
       if (!(peer->endpoint = ast_endpoint_create("IAX2", name))) {
          peer = peer_unref(peer);
       }
    }
 
    if (peer) {
       if (firstpass) {
          ast_copy_flags64(peer, &globalflags, IAX_USEJITTERBUF | IAX_SENDCONNECTEDLINE | IAX_RECVCONNECTEDLINE | IAX_FORCE_ENCRYPT);
          peer->encmethods = iax2_encryption;
          peer->authmethods = iax2_authmethods;
          peer->adsi = adsi;
          ast_string_field_set(peer, secret, "");
          if (!found) {
             ast_string_field_set(peer, name, name);
             ast_sockaddr_parse(&peer->addr, "0.0.0.0", 0);
             ast_sockaddr_set_port(&peer->addr, IAX_DEFAULT_PORTNO);
             peer->expiry = min_reg_expire;
          }
          peer->prefs = prefs_global;
          peer->capability = iax2_capability;
          peer->smoothing = 0;
          peer->pokefreqok = DEFAULT_FREQ_OK;
          peer->pokefreqnotok = DEFAULT_FREQ_NOTOK;
          peer->maxcallno = 0;
          peercnt_modify((unsigned char) 0, 0, &peer->addr);
          peer->calltoken_required = CALLTOKEN_DEFAULT;
          ast_string_field_set(peer,context,"");
          ast_string_field_set(peer,peercontext,"");
          ast_clear_flag64(peer, IAX_HASCALLERID);
          ast_string_field_set(peer, cid_name, "");
          ast_string_field_set(peer, cid_num, "");
          ast_string_field_set(peer, mohinterpret, mohinterpret);
          ast_string_field_set(peer, mohsuggest, mohsuggest);
       }
 
       if (!v) {
          v = alt;
          alt = NULL;
       }
       while(v) {
          if (!strcasecmp(v->name, "secret")) {
             ast_string_field_set(peer, secret, v->value);
          } else if (!strcasecmp(v->name, "mailbox")) {
             ast_string_field_set(peer, mailbox, v->value);
          } else if (!strcasecmp(v->name, "hasvoicemail")) {
             if (ast_true(v->value) && ast_strlen_zero(peer->mailbox)) {
                /*
                 * hasvoicemail is a users.conf legacy voicemail enable method.
                 * hasvoicemail is only going to work for app_voicemail mailboxes.
                 */
                if (strchr(name, '@')) {
                   ast_string_field_set(peer, mailbox, name);
                } else {
                   ast_string_field_build(peer, mailbox, "%s@default", name);
                }
             }
          } else if (!strcasecmp(v->name, "mohinterpret")) {
             ast_string_field_set(peer, mohinterpret, v->value);
          } else if (!strcasecmp(v->name, "mohsuggest")) {
             ast_string_field_set(peer, mohsuggest, v->value);
          } else if (!strcasecmp(v->name, "dbsecret")) {
             ast_string_field_set(peer, dbsecret, v->value);
          } else if (!strcasecmp(v->name, "description")) {
             ast_string_field_set(peer, description, v->value);
          } else if (!strcasecmp(v->name, "trunk")) {
             ast_set2_flag64(peer, ast_true(v->value), IAX_TRUNK);
             if (ast_test_flag64(peer, IAX_TRUNK) && !timer) {
                ast_log(LOG_WARNING, "Unable to support trunking on peer '%s' without a timing interface\n", peer->name);
                ast_clear_flag64(peer, IAX_TRUNK);
             }
          } else if (!strcasecmp(v->name, "auth")) {
             peer->authmethods = get_auth_methods(v->value);
             if (peer->authmethods & IAX_AUTH_PLAINTEXT) {
                ast_log(LOG_WARNING, "Auth method for peer '%s' is set to deprecated 'plaintext' at line %d of iax.conf\n", peer->name, v->lineno);
             }
          } else if (!strcasecmp(v->name, "encryption")) {
             peer->encmethods |= get_encrypt_methods(v->value);
             if (!peer->encmethods) {
                ast_clear_flag64(peer, IAX_FORCE_ENCRYPT);
             }
          } else if (!strcasecmp(v->name, "forceencryption")) {
             if (ast_false(v->value)) {
                ast_clear_flag64(peer, IAX_FORCE_ENCRYPT);
             } else {
                peer->encmethods |= get_encrypt_methods(v->value);
                if (peer->encmethods) {
                   ast_set_flag64(peer, IAX_FORCE_ENCRYPT);
                }
             }
          } else if (!strcasecmp(v->name, "transfer")) {
             if (!strcasecmp(v->value, "mediaonly")) {
                ast_set_flags_to64(peer, IAX_NOTRANSFER|IAX_TRANSFERMEDIA, IAX_TRANSFERMEDIA);
             } else if (ast_true(v->value)) {
                ast_set_flags_to64(peer, IAX_NOTRANSFER|IAX_TRANSFERMEDIA, 0);
             } else
                ast_set_flags_to64(peer, IAX_NOTRANSFER|IAX_TRANSFERMEDIA, IAX_NOTRANSFER);
          } else if (!strcasecmp(v->name, "jitterbuffer")) {
             ast_set2_flag64(peer, ast_true(v->value), IAX_USEJITTERBUF);
          } else if (!strcasecmp(v->name, "host")) {
             if (!strcasecmp(v->value, "dynamic")) {
                /* They'll register with us */
                ast_set_flag64(peer, IAX_DYNAMIC);
                if (!found) {
                   int peer_port = ast_sockaddr_port(&peer->addr);
                   if (peer_port) {
                      ast_sockaddr_set_port(&peer->defaddr, peer_port);
                   }
                   ast_sockaddr_setnull(&peer->addr);
                }
             } else {
                /* Non-dynamic.  Make sure we become that way if we're not */
                AST_SCHED_DEL(sched, peer->expire);
                ast_clear_flag64(peer, IAX_DYNAMIC);
                if (peer->dnsmgr) {
                   // Make sure we refresh dnsmgr if we're using it
                   ast_dnsmgr_refresh(peer->dnsmgr);
                } else {
                   // Or just invalidate the address
                   peer->addr.ss.ss_family = AST_AF_UNSPEC;
                }
                if (ast_dnsmgr_lookup(v->value, &peer->addr, &peer->dnsmgr, srvlookup ? "_iax._udp" : NULL)) {
                   return peer_unref(peer);
                }
                if (!ast_sockaddr_port(&peer->addr)) {
                   ast_sockaddr_set_port(&peer->addr, IAX_DEFAULT_PORTNO);
                }
             }
          } else if (!strcasecmp(v->name, "defaultip")) {
             struct ast_sockaddr peer_defaddr_tmp;
             peer_defaddr_tmp.ss.ss_family = AF_UNSPEC;
             if (ast_get_ip(&peer_defaddr_tmp, v->value)) {
                return peer_unref(peer);
             }
             ast_sockaddr_set_port(&peer_defaddr_tmp, ast_sockaddr_port(&peer->defaddr));
             ast_sockaddr_copy(&peer->defaddr, &peer_defaddr_tmp);
          } else if (!strcasecmp(v->name, "sourceaddress")) {
             peer_set_srcaddr(peer, v->value);
          } else if (!strcasecmp(v->name, "permit") ||
                   !strcasecmp(v->name, "deny") ||
                   !strcasecmp(v->name, "acl")) {
             ast_append_acl(v->name, v->value, &peer->acl, NULL, &subscribe_acl_change);
          } else if (!strcasecmp(v->name, "mask")) {
             maskfound++;
             ast_sockaddr_parse(&peer->mask, v->value, 0);
          } else if (!strcasecmp(v->name, "context")) {
             ast_string_field_set(peer, context, v->value);
          } else if (!strcasecmp(v->name, "regexten")) {
             ast_string_field_set(peer, regexten, v->value);
          } else if (!strcasecmp(v->name, "peercontext")) {
             ast_string_field_set(peer, peercontext, v->value);
          } else if (!strcasecmp(v->name, "port")) {
             int bindport;
             if (ast_parse_arg(v->value, PARSE_UINT32 | PARSE_IN_RANGE, &bindport, 0, 65535)) {
                bindport = IAX_DEFAULT_PORTNO;
             }
             if (ast_test_flag64(peer, IAX_DYNAMIC)) {
                ast_sockaddr_set_port(&peer->defaddr, bindport);
             } else {
                ast_sockaddr_set_port(&peer->addr, bindport);
             }
          } else if (!strcasecmp(v->name, "username")) {
             ast_string_field_set(peer, username, v->value);
          } else if (!strcasecmp(v->name, "allow")) {
             iax2_parse_allow_disallow(&peer->prefs, &peer->capability, v->value, 1);
          } else if (!strcasecmp(v->name, "disallow")) {
             iax2_parse_allow_disallow(&peer->prefs, &peer->capability, v->value, 0);
          } else if (!strcasecmp(v->name, "callerid")) {
             if (!ast_strlen_zero(v->value)) {
                char name2[80];
                char num2[80];
                ast_callerid_split(v->value, name2, sizeof(name2), num2, sizeof(num2));
                ast_string_field_set(peer, cid_name, name2);
                ast_string_field_set(peer, cid_num, num2);
             } else {
                ast_string_field_set(peer, cid_name, "");
                ast_string_field_set(peer, cid_num, "");
             }
             ast_set_flag64(peer, IAX_HASCALLERID);
          } else if (!strcasecmp(v->name, "fullname")) {
             ast_string_field_set(peer, cid_name, S_OR(v->value, ""));
             ast_set_flag64(peer, IAX_HASCALLERID);
          } else if (!strcasecmp(v->name, "cid_number")) {
             ast_string_field_set(peer, cid_num, S_OR(v->value, ""));
             ast_set_flag64(peer, IAX_HASCALLERID);
          } else if (!strcasecmp(v->name, "sendani")) {
             ast_set2_flag64(peer, ast_true(v->value), IAX_SENDANI);
          } else if (!strcasecmp(v->name, "inkeys")) {
             ast_string_field_set(peer, inkeys, v->value);
          } else if (!strcasecmp(v->name, "outkey")) {
             ast_string_field_set(peer, outkey, v->value);
          } else if (!strcasecmp(v->name, "qualify")) {
             if (!strcasecmp(v->value, "no")) {
                peer->maxms = 0;
             } else if (!strcasecmp(v->value, "yes")) {
                peer->maxms = DEFAULT_MAXMS;
             } else if (sscanf(v->value, "%30d", &peer->maxms) != 1) {
                ast_log(LOG_WARNING, "Qualification of peer '%s' should be 'yes', 'no', or a number of milliseconds at line %d of iax.conf\n", peer->name, v->lineno);
                peer->maxms = 0;
             }
          } else if (!strcasecmp(v->name, "qualifysmoothing")) {
             peer->smoothing = ast_true(v->value);
          } else if (!strcasecmp(v->name, "qualifyfreqok")) {
             if (sscanf(v->value, "%30d", &peer->pokefreqok) != 1) {
                ast_log(LOG_WARNING, "Qualification testing frequency of peer '%s' when OK should a number of milliseconds at line %d of iax.conf\n", peer->name, v->lineno);
             }
          } else if (!strcasecmp(v->name, "qualifyfreqnotok")) {
             if (sscanf(v->value, "%30d", &peer->pokefreqnotok) != 1) {
                ast_log(LOG_WARNING, "Qualification testing frequency of peer '%s' when NOT OK should be a number of milliseconds at line %d of iax.conf\n", peer->name, v->lineno);
             }
          } else if (!strcasecmp(v->name, "timezone")) {
             ast_string_field_set(peer, zonetag, v->value);
          } else if (!strcasecmp(v->name, "adsi")) {
             peer->adsi = ast_true(v->value);
          } else if (!strcasecmp(v->name, "connectedline")) {
             if (ast_true(v->value)) {
                ast_set_flag64(peer, IAX_SENDCONNECTEDLINE | IAX_RECVCONNECTEDLINE);
             } else if (!strcasecmp(v->value, "send")) {
                ast_clear_flag64(peer, IAX_RECVCONNECTEDLINE);
                ast_set_flag64(peer, IAX_SENDCONNECTEDLINE);
             } else if (!strcasecmp(v->value, "receive")) {
                ast_clear_flag64(peer, IAX_SENDCONNECTEDLINE);
                ast_set_flag64(peer, IAX_RECVCONNECTEDLINE);
             } else {
                ast_clear_flag64(peer, IAX_SENDCONNECTEDLINE | IAX_RECVCONNECTEDLINE);
             }
          } else if (!strcasecmp(v->name, "maxcallnumbers")) {
             if (sscanf(v->value, "%10hu", &peer->maxcallno) != 1) {
                ast_log(LOG_WARNING, "maxcallnumbers must be set to a valid number. %s is not valid at line %d.\n", v->value, v->lineno);
             } else {
                peercnt_modify((unsigned char) 1, peer->maxcallno, &peer->addr);
             }
          } else if (!strcasecmp(v->name, "requirecalltoken")) {
             /* default is required unless in optional ip list */
             if (ast_false(v->value)) {
                peer->calltoken_required = CALLTOKEN_NO;
             } else if (!strcasecmp(v->value, "auto")) {
                peer->calltoken_required = CALLTOKEN_AUTO;
             } else if (ast_true(v->value)) {
                peer->calltoken_required = CALLTOKEN_YES;
             } else {
                ast_log(LOG_WARNING, "requirecalltoken must be set to a valid value. at line %d\n", v->lineno);
             }
          } /* else if (strcasecmp(v->name,"type")) */
          /* ast_log(LOG_WARNING, "Ignoring %s\n", v->name); */
          v = v->next;
          if (!v) {
             v = alt;
             alt = NULL;
          }
       }
       if (!peer->authmethods)
          peer->authmethods = IAX_AUTH_MD5;
       ast_clear_flag64(peer, IAX_DELME);
    }
 
    if (!maskfound && !ast_sockaddr_isnull(&peer->addr)) {
       if (ast_sockaddr_is_ipv4_mapped(&peer->addr)) {
          ast_sockaddr_parse(&peer->mask, "::ffff:ffff:ffff", 0);
       } else if (ast_sockaddr_is_ipv6(&peer->addr)) {
          ast_sockaddr_parse(&peer->mask, "ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff", 0);
       } else {
          ast_sockaddr_parse(&peer->mask, "255.255.255.255", 0);
       }
    }
 
    if (oldacl) {
       ast_free_acl_list(oldacl);
    }
 
    if (!ast_strlen_zero(peer->mailbox) && !peer->mwi_event_sub) {
       /* The MWI subscriptions exist just so the core knows we care about those
        * mailboxes.  However, we just grab the events out of the cache when it
        * is time to send MWI, since it is only sent with a REGACK. */
       peer->mwi_event_sub = ast_mwi_subscribe_pool(peer->mailbox, stasis_subscription_cb_noop, NULL);
    }
 
    if (subscribe_acl_change) {
       acl_change_stasis_subscribe();
    }
 
    return peer;
 }

◆ build_rand_pad()

static void build_rand_pad	(	unsigned char *	buf,
		ssize_t	len
	)

static

Definition at line 6355 of file chan_iax2.c.

References ast_random(), and tmp().

Referenced by build_ecx_key(), jb_debug_output(), and update_packet().

 {
    long tmp;
    for (tmp = ast_random(); len > 0; tmp = ast_random()) {
       memcpy(buf, (unsigned char *) &tmp, (len > sizeof(tmp)) ? sizeof(tmp) : len);
       buf += sizeof(tmp);
       len -= sizeof(tmp);
    }
 }

◆ build_user()

static struct iax2_user * build_user	(	const char *	name,
		struct ast_variable *	v,
		struct ast_variable *	alt,
		int	temponly
	)

static

Create in-memory user structure from configuration.

Definition at line 13119 of file chan_iax2.c.

References accountcode, iax2_user::acl, acl_change_stasis_subscribe(), adsi, iax2_user::adsi, iax2_user::amaflags, ao2_alloc, ao2_find, ao2_unlink, ast_append_acl(), ast_callerid_split(), ast_channel_string2amaflag(), ast_clear_flag64, ast_copy_flags64, ast_false(), ast_free_acl_list(), ast_log, ast_set2_flag64, ast_set_flag64, ast_set_flags_to64, ast_strdupa, ast_string_field_build, ast_string_field_free_memory, ast_string_field_init, ast_string_field_set, ast_strlen_zero, ast_test_flag64, ast_true(), ast_variable_list_replace(), ast_variable_new, iax2_user::authmethods, build_context(), CALLTOKEN_AUTO, CALLTOKEN_DEFAULT, CALLTOKEN_NO, iax2_user::calltoken_required, CALLTOKEN_YES, iax2_user::capability, cid_name, iax2_user::cid_name, cid_num, iax2_user::cid_num, cleanup(), iax2_user::contexts, iax2_user::curauthreq, iax2_user::encmethods, format, free_context(), get_auth_methods(), get_encrypt_methods(), iax2_authmethods, iax2_capability, iax2_encryption, iax2_parse_allow_disallow(), IAX_AUTH_MD5, IAX_AUTH_PLAINTEXT, IAX_AUTH_RSA, IAX_CODEC_NOCAP, IAX_CODEC_NOPREFS, IAX_CODEC_USER_FIRST, IAX_DELME, IAX_FORCE_ENCRYPT, IAX_HASCALLERID, IAX_IMMEDIATE, IAX_NOTRANSFER, IAX_RECVCONNECTEDLINE, IAX_SENDCONNECTEDLINE, IAX_TRANSFERMEDIA, IAX_TRUNK, IAX_USEJITTERBUF, iax2_user::inkeys, language, ast_variable::lineno, LOG_WARNING, maxauthreq, iax2_user::maxauthreq, mohinterpret, mohsuggest, ast_variable::name, iax2_user::name, ast_variable::next, iax2_context::next, NULL, OBJ_KEY, parkinglot, iax2_user::prefs, prefs_global, iax2_user::secret, user, user_destructor(), user_unref(), ast_variable::value, and iax2_user::vars.

Referenced by jb_debug_output(), realtime_user(), and set_config().

 {
    struct iax2_user *user = NULL;
    struct iax2_context *con, *conl = NULL;
    struct ast_acl_list *oldacl = NULL;
    struct iax2_context *oldcon = NULL;
    int format;
    int firstpass=1;
    int oldcurauthreq = 0;
    int subscribe_acl_change = 0;
    char *varname = NULL, *varval = NULL;
    struct ast_variable *tmpvar = NULL;
 
    if (!temponly) {
       user = ao2_find(users, name, OBJ_KEY);
       if (user && !ast_test_flag64(user, IAX_DELME))
          firstpass = 0;
    }
 
    if (user) {
       if (firstpass) {
          oldcurauthreq = user->curauthreq;
          oldacl = user->acl;
          oldcon = user->contexts;
          user->acl = NULL;
          user->contexts = NULL;
       }
       /* Already in the list, remove it and it will be added back (or FREE'd) */
       ao2_unlink(users, user);
    } else {
       user = ao2_alloc(sizeof(*user), user_destructor);
    }
 
    if (user) {
       if (firstpass) {
          ast_string_field_free_memory(user);
          memset(user, 0, sizeof(struct iax2_user));
          if (ast_string_field_init(user, 32)) {
             user = user_unref(user);
             goto cleanup;
          }
          user->maxauthreq = maxauthreq;
          user->curauthreq = oldcurauthreq;
          user->prefs = prefs_global;
          user->capability = iax2_capability;
          user->encmethods = iax2_encryption;
          user->authmethods = iax2_authmethods;
          user->adsi = adsi;
          user->calltoken_required = CALLTOKEN_DEFAULT;
          ast_string_field_set(user, name, name);
          ast_string_field_set(user, language, language);
          ast_copy_flags64(user, &globalflags, IAX_USEJITTERBUF | IAX_CODEC_USER_FIRST | IAX_CODEC_NOPREFS | IAX_CODEC_NOCAP | IAX_SENDCONNECTEDLINE | IAX_RECVCONNECTEDLINE | IAX_FORCE_ENCRYPT);
          ast_clear_flag64(user, IAX_HASCALLERID);
          ast_string_field_set(user, cid_name, "");
          ast_string_field_set(user, cid_num, "");
          ast_string_field_set(user, accountcode, accountcode);
          ast_string_field_set(user, mohinterpret, mohinterpret);
          ast_string_field_set(user, mohsuggest, mohsuggest);
       }
       if (!v) {
          v = alt;
          alt = NULL;
       }
       while(v) {
          if (!strcasecmp(v->name, "context")) {
             con = build_context(v->value);
             if (con) {
                if (conl)
                   conl->next = con;
                else
                   user->contexts = con;
                conl = con;
             }
          } else if (!strcasecmp(v->name, "permit") ||
                   !strcasecmp(v->name, "deny") ||
                   !strcasecmp(v->name, "acl")) {
             ast_append_acl(v->name, v->value, &user->acl, NULL, &subscribe_acl_change);
          } else if (!strcasecmp(v->name, "setvar")) {
             varname = ast_strdupa(v->value);
             if ((varval = strchr(varname, '='))) {
                *varval = '\0';
                varval++;
                if ((tmpvar = ast_variable_new(varname, varval, ""))) {
                   if (ast_variable_list_replace(&user->vars, tmpvar)) {
                      tmpvar->next = user->vars;
                      user->vars = tmpvar;
                   }
                }
             }
          } else if (!strcasecmp(v->name, "allow")) {
             iax2_parse_allow_disallow(&user->prefs, &user->capability, v->value, 1);
          } else if (!strcasecmp(v->name, "disallow")) {
             iax2_parse_allow_disallow(&user->prefs, &user->capability,v->value, 0);
          } else if (!strcasecmp(v->name, "trunk")) {
             ast_set2_flag64(user, ast_true(v->value), IAX_TRUNK);
             if (ast_test_flag64(user, IAX_TRUNK) && !timer) {
                ast_log(LOG_WARNING, "Unable to support trunking on user '%s' without a timing interface\n", user->name);
                ast_clear_flag64(user, IAX_TRUNK);
             }
          } else if (!strcasecmp(v->name, "auth")) {
             user->authmethods = get_auth_methods(v->value);
             if (user->authmethods & IAX_AUTH_PLAINTEXT) {
                ast_log(LOG_WARNING, "Auth method for user '%s' is set to deprecated 'plaintext' at line %d of iax.conf\n", user->name, v->lineno);
             }
          } else if (!strcasecmp(v->name, "encryption")) {
             user->encmethods |= get_encrypt_methods(v->value);
             if (!user->encmethods) {
                ast_clear_flag64(user, IAX_FORCE_ENCRYPT);
             }
          } else if (!strcasecmp(v->name, "forceencryption")) {
             if (ast_false(v->value)) {
                ast_clear_flag64(user, IAX_FORCE_ENCRYPT);
             } else {
                user->encmethods |= get_encrypt_methods(v->value);
                if (user->encmethods) {
                   ast_set_flag64(user, IAX_FORCE_ENCRYPT);
                }
             }
          } else if (!strcasecmp(v->name, "transfer")) {
             if (!strcasecmp(v->value, "mediaonly")) {
                ast_set_flags_to64(user, IAX_NOTRANSFER|IAX_TRANSFERMEDIA, IAX_TRANSFERMEDIA);
             } else if (ast_true(v->value)) {
                ast_set_flags_to64(user, IAX_NOTRANSFER|IAX_TRANSFERMEDIA, 0);
             } else
                ast_set_flags_to64(user, IAX_NOTRANSFER|IAX_TRANSFERMEDIA, IAX_NOTRANSFER);
          } else if (!strcasecmp(v->name, "codecpriority")) {
             if(!strcasecmp(v->value, "caller"))
                ast_set_flag64(user, IAX_CODEC_USER_FIRST);
             else if(!strcasecmp(v->value, "disabled"))
                ast_set_flag64(user, IAX_CODEC_NOPREFS);
             else if(!strcasecmp(v->value, "reqonly")) {
                ast_set_flag64(user, IAX_CODEC_NOCAP);
                ast_set_flag64(user, IAX_CODEC_NOPREFS);
             }
          } else if (!strcasecmp(v->name, "immediate")) {
             ast_set2_flag64(user, ast_true(v->value), IAX_IMMEDIATE);
          } else if (!strcasecmp(v->name, "jitterbuffer")) {
             ast_set2_flag64(user, ast_true(v->value), IAX_USEJITTERBUF);
          } else if (!strcasecmp(v->name, "dbsecret")) {
             ast_string_field_set(user, dbsecret, v->value);
          } else if (!strcasecmp(v->name, "secret")) {
             if (!ast_strlen_zero(user->secret)) {
                char *old = ast_strdupa(user->secret);
 
                ast_string_field_build(user, secret, "%s;%s", old, v->value);
             } else
                ast_string_field_set(user, secret, v->value);
          } else if (!strcasecmp(v->name, "callerid")) {
             if (!ast_strlen_zero(v->value) && strcasecmp(v->value, "asreceived")) {
                char name2[80];
                char num2[80];
                ast_callerid_split(v->value, name2, sizeof(name2), num2, sizeof(num2));
                ast_string_field_set(user, cid_name, name2);
                ast_string_field_set(user, cid_num, num2);
                ast_set_flag64(user, IAX_HASCALLERID);
             } else {
                ast_clear_flag64(user, IAX_HASCALLERID);
                ast_string_field_set(user, cid_name, "");
                ast_string_field_set(user, cid_num, "");
             }
          } else if (!strcasecmp(v->name, "fullname")) {
             if (!ast_strlen_zero(v->value)) {
                ast_string_field_set(user, cid_name, v->value);
                ast_set_flag64(user, IAX_HASCALLERID);
             } else {
                ast_string_field_set(user, cid_name, "");
                if (ast_strlen_zero(user->cid_num))
                   ast_clear_flag64(user, IAX_HASCALLERID);
             }
          } else if (!strcasecmp(v->name, "cid_number")) {
             if (!ast_strlen_zero(v->value)) {
                ast_string_field_set(user, cid_num, v->value);
                ast_set_flag64(user, IAX_HASCALLERID);
             } else {
                ast_string_field_set(user, cid_num, "");
                if (ast_strlen_zero(user->cid_name))
                   ast_clear_flag64(user, IAX_HASCALLERID);
             }
          } else if (!strcasecmp(v->name, "accountcode")) {
             ast_string_field_set(user, accountcode, v->value);
          } else if (!strcasecmp(v->name, "mohinterpret")) {
             ast_string_field_set(user, mohinterpret, v->value);
          } else if (!strcasecmp(v->name, "mohsuggest")) {
             ast_string_field_set(user, mohsuggest, v->value);
          } else if (!strcasecmp(v->name, "parkinglot")) {
             ast_string_field_set(user, parkinglot, v->value);
          } else if (!strcasecmp(v->name, "language")) {
             ast_string_field_set(user, language, v->value);
          } else if (!strcasecmp(v->name, "amaflags")) {
             format = ast_channel_string2amaflag(v->value);
             if (format < 0) {
                ast_log(LOG_WARNING, "Invalid AMA Flags: %s at line %d\n", v->value, v->lineno);
             } else {
                user->amaflags = format;
             }
          } else if (!strcasecmp(v->name, "inkeys")) {
             ast_string_field_set(user, inkeys, v->value);
          } else if (!strcasecmp(v->name, "maxauthreq")) {
             user->maxauthreq = atoi(v->value);
             if (user->maxauthreq < 0)
                user->maxauthreq = 0;
          } else if (!strcasecmp(v->name, "adsi")) {
             user->adsi = ast_true(v->value);
          } else if (!strcasecmp(v->name, "connectedline")) {
             if (ast_true(v->value)) {
                ast_set_flag64(user, IAX_SENDCONNECTEDLINE | IAX_RECVCONNECTEDLINE);
             } else if (!strcasecmp(v->value, "send")) {
                ast_clear_flag64(user, IAX_RECVCONNECTEDLINE);
                ast_set_flag64(user, IAX_SENDCONNECTEDLINE);
             } else if (!strcasecmp(v->value, "receive")) {
                ast_clear_flag64(user, IAX_SENDCONNECTEDLINE);
                ast_set_flag64(user, IAX_RECVCONNECTEDLINE);
             } else {
                ast_clear_flag64(user, IAX_SENDCONNECTEDLINE | IAX_RECVCONNECTEDLINE);
             }
          } else if (!strcasecmp(v->name, "requirecalltoken")) {
             /* default is required unless in optional ip list */
             if (ast_false(v->value)) {
                user->calltoken_required = CALLTOKEN_NO;
             } else if (!strcasecmp(v->value, "auto")) {
                user->calltoken_required = CALLTOKEN_AUTO;
             } else if (ast_true(v->value)) {
                user->calltoken_required = CALLTOKEN_YES;
             } else {
                ast_log(LOG_WARNING, "requirecalltoken must be set to a valid value. at line %d\n", v->lineno);
             }
          } /* else if (strcasecmp(v->name,"type")) */
          /* ast_log(LOG_WARNING, "Ignoring %s\n", v->name); */
          v = v->next;
          if (!v) {
             v = alt;
             alt = NULL;
          }
       }
       if (!user->authmethods) {
          if (!ast_strlen_zero(user->secret)) {
             user->authmethods = IAX_AUTH_MD5;
             if (!ast_strlen_zero(user->inkeys))
                user->authmethods |= IAX_AUTH_RSA;
          } else if (!ast_strlen_zero(user->inkeys)) {
             user->authmethods = IAX_AUTH_RSA;
          } else {
             user->authmethods = IAX_AUTH_MD5;
          }
       }
       ast_clear_flag64(user, IAX_DELME);
    }
 cleanup:
    if (oldacl) {
       ast_free_acl_list(oldacl);
    }
    if (oldcon) {
       free_context(oldcon);
    }
 
    if (subscribe_acl_change) {
       acl_change_stasis_subscribe();
    }
 
    return user;
 }

◆ cache_get_callno_locked()

static int cache_get_callno_locked ( const char * data )

static

Definition at line 14064 of file chan_iax2.c.

References add_empty_calltoken_ie(), ARRAY_LEN, ast_debug, AST_FRAME_IAX, ast_log, ast_mutex_trylock, ast_mutex_unlock, ast_strdupa, ast_string_field_set, ast_strlen_zero, iax_ie_data::buf, chan_iax2_pvt::capability, parsed_dial_string::context, create_addr(), parsed_dial_string::exten, find_callno_locked(), IAX_CAPABILITY_FULLBANDWIDTH, IAX_COMMAND_NEW, iax_ie_append_int(), iax_ie_append_short(), iax_ie_append_str(), IAX_IE_CALLED_CONTEXT, IAX_IE_CALLED_NUMBER, IAX_IE_CAPABILITY, IAX_IE_FORMAT, IAX_IE_USERNAME, IAX_IE_VERSION, IAX_PROTO_VERSION, parsed_dial_string::key, LOG_WARNING, NEW_FORCE, NULL, parse_dial_string(), parsed_dial_string::password, parsed_dial_string::peer, iax_ie_data::pos, send_command(), create_addr_info::sockfd, and parsed_dial_string::username.

Referenced by find_cache().

 {
    struct ast_sockaddr addr;
    int x;
    int callno;
    struct iax_ie_data ied;
    struct create_addr_info cai;
    struct parsed_dial_string pds;
    char *tmpstr;
 
    for (x = 0; x < ARRAY_LEN(iaxs); x++) {
       /* Look for an *exact match* call.  Once a call is negotiated, it can only
          look up entries for a single context */
       if (!ast_mutex_trylock(&iaxsl[x])) {
          if (iaxs[x] && !strcasecmp(data, iaxs[x]->dproot))
             return x;
          ast_mutex_unlock(&iaxsl[x]);
       }
    }
 
    /* No match found, we need to create a new one */
 
    memset(&cai, 0, sizeof(cai));
    memset(&ied, 0, sizeof(ied));
    memset(&pds, 0, sizeof(pds));
 
    tmpstr = ast_strdupa(data);
    parse_dial_string(tmpstr, &pds);
 
    if (ast_strlen_zero(pds.peer)) {
       ast_log(LOG_WARNING, "No peer provided in the IAX2 dial string '%s'\n", data);
       return -1;
    }
 
    /* Populate our address from the given */
    if (create_addr(pds.peer, NULL, &addr, &cai))
       return -1;
 
    ast_debug(1, "peer: %s, username: %s, password: %s, context: %s\n",
       pds.peer, pds.username, pds.password, pds.context);
 
    callno = find_callno_locked(0, 0, &addr, NEW_FORCE, cai.sockfd, 0);
    if (callno < 1) {
       ast_log(LOG_WARNING, "Unable to create call\n");
       return -1;
    }
 
    ast_string_field_set(iaxs[callno], dproot, data);
    iaxs[callno]->capability = IAX_CAPABILITY_FULLBANDWIDTH;
 
    iax_ie_append_short(&ied, IAX_IE_VERSION, IAX_PROTO_VERSION);
    iax_ie_append_str(&ied, IAX_IE_CALLED_NUMBER, "TBD");
    /* the string format is slightly different from a standard dial string,
       because the context appears in the 'exten' position
    */
    if (pds.exten)
       iax_ie_append_str(&ied, IAX_IE_CALLED_CONTEXT, pds.exten);
    if (pds.username)
       iax_ie_append_str(&ied, IAX_IE_USERNAME, pds.username);
    iax_ie_append_int(&ied, IAX_IE_FORMAT, IAX_CAPABILITY_FULLBANDWIDTH);
    iax_ie_append_int(&ied, IAX_IE_CAPABILITY, IAX_CAPABILITY_FULLBANDWIDTH);
    /* Keep password handy */
    if (pds.password)
       ast_string_field_set(iaxs[callno], secret, pds.password);
    if (pds.key)
       ast_string_field_set(iaxs[callno], outkey, pds.key);
    /* Start the call going */
    add_empty_calltoken_ie(iaxs[callno], &ied); /* this _MUST_ be the last ie added */
    send_command(iaxs[callno], AST_FRAME_IAX, IAX_COMMAND_NEW, 0, ied.buf, ied.pos, -1);
 
    return callno;
 }

◆ calc_rxstamp()

static unsigned int calc_rxstamp	(	struct chan_iax2_pvt *	p,
		unsigned int	offset
	)

static

Definition at line 6206 of file chan_iax2.c.

References ast_debug, ast_random(), ast_samp2tv(), ast_tvdiff_ms(), ast_tvnow(), ast_tvsub(), ast_tvzero(), chan_iax2_pvt::callno, iaxdebug, and chan_iax2_pvt::rxcore.

Referenced by handle_cli_iax2_show_cache().

 {
    /* Returns where in "receive time" we are.  That is, how many ms
       since we received (or would have received) the frame with timestamp 0 */
    int ms;
 #ifdef IAXTESTS
    int jit;
 #endif /* IAXTESTS */
    /* Setup rxcore if necessary */
    if (ast_tvzero(p->rxcore)) {
       p->rxcore = ast_tvnow();
       if (iaxdebug)
          ast_debug(1, "calc_rxstamp: call=%d: rxcore set to %d.%6.6d - %ums\n",
                p->callno, (int)(p->rxcore.tv_sec), (int)(p->rxcore.tv_usec), offset);
       p->rxcore = ast_tvsub(p->rxcore, ast_samp2tv(offset, 1000));
 #if 1
       if (iaxdebug)
          ast_debug(1, "calc_rxstamp: call=%d: works out as %d.%6.6d\n",
                p->callno, (int)(p->rxcore.tv_sec),(int)( p->rxcore.tv_usec));
 #endif
    }
 
    ms = ast_tvdiff_ms(ast_tvnow(), p->rxcore);
 #ifdef IAXTESTS
    if (test_jit) {
       if (!test_jitpct || ((100.0 * ast_random() / (RAND_MAX + 1.0)) < test_jitpct)) {
          jit = (int)((float)test_jit * ast_random() / (RAND_MAX + 1.0));
          if ((int)(2.0 * ast_random() / (RAND_MAX + 1.0)))
             jit = -jit;
          ms += jit;
       }
    }
    if (test_late) {
       ms += test_late;
       test_late = 0;
    }
 #endif /* IAXTESTS */
    return ms;
 }

◆ calc_timestamp()

static unsigned int calc_timestamp	(	struct chan_iax2_pvt *	p,
		unsigned int	ts,
		struct ast_frame *	f
	)

static

Definition at line 6071 of file chan_iax2.c.

References abs, ast_debug, ast_format_get_sample_rate(), AST_FRAME_CNG, AST_FRAME_IAX, AST_FRAME_VIDEO, AST_FRAME_VOICE, ast_samp2tv(), ast_tvadd(), ast_tvdiff_ms(), ast_tvnow(), ast_tvsub(), ast_tvzero(), chan_iax2_pvt::callno, ast_frame::delivery, ast_frame_subclass::format, ast_frame::frametype, iaxdebug, chan_iax2_pvt::lastsent, MAX_TIMESTAMP_SKEW, chan_iax2_pvt::nextpred, chan_iax2_pvt::notsilenttx, NULL, chan_iax2_pvt::offset, chan_iax2_pvt::peercallno, ast_frame::samples, and ast_frame::subclass.

Referenced by iax2_send(), and socket_process_helper().

 {
    int ms;
    int voice = 0;
    int genuine = 0;
    int adjust;
    int rate = 0;
    struct timeval *delivery = NULL;
 
 
    /* What sort of frame do we have?: voice is self-explanatory
       "genuine" means an IAX frame - things like LAGRQ/RP, PING/PONG, ACK
       non-genuine frames are CONTROL frames [ringing etc], DTMF
       The "genuine" distinction is needed because genuine frames must get a clock-based timestamp,
       the others need a timestamp slaved to the voice frames so that they go in sequence
    */
    if (f->frametype == AST_FRAME_VOICE) {
       voice = 1;
       rate = ast_format_get_sample_rate(f->subclass.format) / 1000;
       delivery = &f->delivery;
    } else if (f->frametype == AST_FRAME_IAX) {
       genuine = 1;
    } else if (f->frametype == AST_FRAME_CNG) {
       p->notsilenttx = 0;
    }
 
    if (ast_tvzero(p->offset)) {
       p->offset = ast_tvnow();
       /* Round to nearest 20ms for nice looking traces */
       p->offset.tv_usec -= p->offset.tv_usec % 20000;
    }
    /* If the timestamp is specified, just send it as is */
    if (ts)
       return ts;
    /* If we have a time that the frame arrived, always use it to make our timestamp */
    if (delivery && !ast_tvzero(*delivery)) {
       ms = ast_tvdiff_ms(*delivery, p->offset);
       if (ms < 0) {
          ms = 0;
       }
       if (iaxdebug)
          ast_debug(3, "calc_timestamp: call %d/%d: Timestamp slaved to delivery time\n", p->callno, iaxs[p->callno]->peercallno);
    } else {
       ms = ast_tvdiff_ms(ast_tvnow(), p->offset);
       if (ms < 0)
          ms = 0;
       if (voice) {
          /* On a voice frame, use predicted values if appropriate */
          adjust = (ms - p->nextpred);
          if (p->notsilenttx && abs(adjust) <= MAX_TIMESTAMP_SKEW) {
             /* Adjust our txcore, keeping voice and non-voice synchronized */
             /* AN EXPLANATION:
                When we send voice, we usually send "calculated" timestamps worked out
                on the basis of the number of samples sent. When we send other frames,
                we usually send timestamps worked out from the real clock.
                The problem is that they can tend to drift out of step because the
                   source channel's clock and our clock may not be exactly at the same rate.
                We fix this by continuously "tweaking" p->offset.  p->offset is "time zero"
                for this call.  Moving it adjusts timestamps for non-voice frames.
                We make the adjustment in the style of a moving average.  Each time we
                adjust p->offset by 10% of the difference between our clock-derived
                timestamp and the predicted timestamp.  That's why you see "10000"
                below even though IAX2 timestamps are in milliseconds.
                The use of a moving average avoids offset moving too radically.
                Generally, "adjust" roams back and forth around 0, with offset hardly
                changing at all.  But if a consistent different starts to develop it
                will be eliminated over the course of 10 frames (200-300msecs)
             */
             if (adjust < 0)
                p->offset = ast_tvsub(p->offset, ast_samp2tv(abs(adjust), 10000));
             else if (adjust > 0)
                p->offset = ast_tvadd(p->offset, ast_samp2tv(adjust, 10000));
 
             if (!p->nextpred) {
                p->nextpred = ms; /*f->samples / rate;*/
                if (p->nextpred <= p->lastsent)
                   p->nextpred = p->lastsent + 3;
             }
             ms = p->nextpred;
          } else {
                 /* in this case, just use the actual
             * time, since we're either way off
             * (shouldn't happen), or we're  ending a
             * silent period -- and seed the next
             * predicted time.  Also, round ms to the
             * next multiple of frame size (so our
             * silent periods are multiples of
             * frame size too) */
 
             if (iaxdebug && abs(adjust) > MAX_TIMESTAMP_SKEW )
                ast_debug(1, "predicted timestamp skew (%d) > max (%d), using real ts instead.\n",
                   abs(adjust), MAX_TIMESTAMP_SKEW);
 
             if (f->samples >= rate) /* check to make sure we don't core dump */
             {
                int diff = ms % (f->samples / rate);
                if (diff)
                    ms += f->samples/rate - diff;
             }
 
             p->nextpred = ms;
             p->notsilenttx = 1;
          }
       } else if ( f->frametype == AST_FRAME_VIDEO ) {
          /*
          * IAX2 draft 03 says that timestamps MUST be in order.
          * It does not say anything about several frames having the same timestamp
          * When transporting video, we can have a frame that spans multiple iax packets
          * (so called slices), so it would make sense to use the same timestamp for all of
          * them
          * We do want to make sure that frames don't go backwards though
          */
          if ( (unsigned int)ms < p->lastsent )
             ms = p->lastsent;
       } else {
          /* On a dataframe, use last value + 3 (to accomodate jitter buffer shrinking) if appropriate unless
             it's a genuine frame */
          adjust = (ms - p->lastsent);
          if (genuine) {
             /* genuine (IAX LAGRQ etc) must keep their clock-based stamps */
             if (ms <= p->lastsent)
                ms = p->lastsent + 3;
          } else if (abs(adjust) <= MAX_TIMESTAMP_SKEW) {
             /* non-genuine frames (!?) (DTMF, CONTROL) should be pulled into the predicted stream stamps */
             ms = p->lastsent + 3;
          }
       }
    }
    p->lastsent = ms;
    if (voice) {
       p->nextpred = p->nextpred + f->samples / rate;
    }
    return ms;
 }

◆ calc_txpeerstamp()

static unsigned int calc_txpeerstamp	(	struct iax2_trunk_peer *	tpeer,
		int	sampms,
		struct timeval *	now
	)

static

Definition at line 6027 of file chan_iax2.c.

References ast_tvdiff_ms(), ast_tvzero(), iax2_trunk_peer::lastsent, iax2_trunk_peer::lasttxtime, MAX_TIMESTAMP_SKEW, iax2_trunk_peer::trunkact, and iax2_trunk_peer::txtrunktime.

Referenced by send_trunk().

 {
    unsigned long int mssincetx; /* unsigned to handle overflows */
    long int ms, pred;
 
    tpeer->trunkact = *now;
    mssincetx = ast_tvdiff_ms(*now, tpeer->lasttxtime);
    if (mssincetx > 5000 || ast_tvzero(tpeer->txtrunktime)) {
       /* If it's been at least 5 seconds since the last time we transmitted on this trunk, reset our timers */
       tpeer->txtrunktime = *now;
       tpeer->lastsent = 999999;
    }
    /* Update last transmit time now */
    tpeer->lasttxtime = *now;
 
    /* Calculate ms offset */
    ms = ast_tvdiff_ms(*now, tpeer->txtrunktime);
    /* Predict from last value */
    pred = tpeer->lastsent + sampms;
    if (labs(ms - pred) < MAX_TIMESTAMP_SKEW)
       ms = pred;
 
    /* We never send the same timestamp twice, so fudge a little if we must */
    if (ms == tpeer->lastsent)
       ms = tpeer->lastsent + 1;
    tpeer->lastsent = ms;
    return ms;
 }

◆ calltoken_required()

static int calltoken_required	(	struct ast_sockaddr *	addr,
		const char *	name,
		int	subclass
	)

static

Definition at line 2494 of file chan_iax2.c.

References addr_range_match_address_cb(), ao2_callback, ao2_ref, ast_debug, ast_sockaddr_stringify_addr(), CALLTOKEN_AUTO, CALLTOKEN_DEFAULT, CALLTOKEN_NO, iax2_user::calltoken_required, iax2_peer::calltoken_required, find_peer(), find_user(), IAX_COMMAND_NEW, NULL, peer_unref(), realtime_peer(), realtime_user(), S_OR, and user_unref().

Referenced by handle_call_token().

 {
    struct addr_range *addr_range;
    struct iax2_peer *peer = NULL;
    struct iax2_user *user = NULL;
    /* if no username is given, check for guest accounts */
    const char *find = S_OR(name, "guest");
    int res = 1;  /* required by default */
    int optional = 0;
    enum calltoken_peer_enum calltoken_required = CALLTOKEN_DEFAULT;
    /* There are only two cases in which calltoken validation is not required.
     * Case 1. sin falls within the list of address ranges specified in the calltoken optional table and
     *         the peer definition has not set the requirecalltoken option.
     * Case 2. Username is a valid peer/user, and that peer has requirecalltoken set either auto or no.
     */
 
    /* ----- Case 1 ----- */
    if ((addr_range = ao2_callback(calltoken_ignores, 0, addr_range_match_address_cb, addr))) {
       ao2_ref(addr_range, -1);
       optional = 1;
    }
 
    /* ----- Case 2 ----- */
    if ((subclass == IAX_COMMAND_NEW) && (user = find_user(find))) {
       calltoken_required = user->calltoken_required;
    } else if ((subclass == IAX_COMMAND_NEW) && (user = realtime_user(find, addr))) {
       calltoken_required = user->calltoken_required;
    } else if ((subclass != IAX_COMMAND_NEW) && (peer = find_peer(find, 0))) {
       calltoken_required = peer->calltoken_required;
    } else if ((subclass != IAX_COMMAND_NEW) && (peer = realtime_peer(find, addr))) {
       calltoken_required = peer->calltoken_required;
    }
 
    if (peer) {
       peer_unref(peer);
    }
    if (user) {
       user_unref(user);
    }
 
    ast_debug(1, "Determining if address %s with username %s requires calltoken validation.  Optional = %d  calltoken_required = %u \n", ast_sockaddr_stringify_addr(addr), name, optional, calltoken_required);
    if (((calltoken_required == CALLTOKEN_NO) || (calltoken_required == CALLTOKEN_AUTO)) ||
       (optional && (calltoken_required == CALLTOKEN_DEFAULT))) {
       res = 0;
    }
 
    return res;
 }

◆ check_access()

static int check_access	(	int	callno,
		struct ast_sockaddr *	addr,
		struct iax_ies *	ies
	)

static

Definition at line 7787 of file chan_iax2.c.

References accountcode, iax2_user::accountcode, iax2_user::acl, iax2_user::adsi, chan_iax2_pvt::adsi, iax_ies::adsicpe, iax2_user::amaflags, chan_iax2_pvt::amaflags, ao2_iterator_destroy(), ao2_iterator_init(), ao2_iterator_next, apply_context(), ast_apply_acl(), ast_copy_flags64, ast_db_get(), ast_log, AST_PRES_ALLOWED_USER_NUMBER_PASSED_SCREEN, AST_PRES_NUMBER_NOT_AVAILABLE, AST_SENSE_ALLOW, AST_SENSE_DENY, ast_set2_flag64, ast_set_flag64, ast_shrink_phone_number(), ast_sockaddr_stringify_addr(), ast_strdupa, ast_string_field_set, ast_strlen_zero, ast_test_flag64, ast_variable_list_replace(), ast_variable_new, iax2_user::authmethods, chan_iax2_pvt::authmethods, chan_iax2_pvt::authrej, iax_ies::called_context, iax_ies::called_number, iax_ies::calling_ani, iax_ies::calling_name, iax_ies::calling_number, iax_ies::calling_pres, chan_iax2_pvt::calling_pres, iax_ies::calling_tns, chan_iax2_pvt::calling_tns, iax_ies::calling_ton, chan_iax2_pvt::calling_ton, iax_ies::capability, iax2_user::capability, chan_iax2_pvt::capability, cid_name, iax2_user::cid_name, cid_num, iax2_user::cid_num, iax_ies::codec_prefs, context, iax2_context::context, chan_iax2_pvt::context, iax2_user::contexts, iax2_user::dbsecret, DEFAULT_CONTEXT, iax_ies::dnid, iax2_user::encmethods, chan_iax2_pvt::encmethods, exten, ast_variable::file, iax_ies::format, iax2_codec_pref_convert(), iax2_getpeertrunk(), IAX_AUTH_MD5, IAX_CODEC_NOCAP, IAX_CODEC_NOPREFS, IAX_CODEC_USER_FIRST, IAX_FORCE_ENCRYPT, IAX_HASCALLERID, IAX_IMMEDIATE, IAX_MAXAUTHREQ, IAX_NOTRANSFER, IAX_PROTO_VERSION, IAX_RECVCONNECTEDLINE, IAX_SENDCONNECTEDLINE, IAX_SHRINKCALLERID, IAX_TRANSFERMEDIA, IAX_TRUNK, IAX_USEJITTERBUF, iax2_user::inkeys, iax_ies::language, language, iax2_user::language, last_authmethod, LOG_WARNING, iax2_user::maxauthreq, mohinterpret, iax2_user::mohinterpret, mohsuggest, iax2_user::mohsuggest, ast_variable::name, iax2_user::name, ast_variable::next, NULL, parkinglot, iax2_user::parkinglot, chan_iax2_pvt::peeradsicpe, chan_iax2_pvt::peercapability, chan_iax2_pvt::peerformat, iax2_user::prefs, chan_iax2_pvt::prefs, iax_ies::rdnis, realtime_user(), chan_iax2_pvt::rprefs, iax2_user::secret, user, user_unref(), iax_ies::username, ast_variable::value, iax2_user::vars, chan_iax2_pvt::vars, iax_ies::version, and version.

Referenced by socket_process_helper().

 {
    /* Start pessimistic */
    int res = -1;
    int version = 2;
    struct iax2_user *user = NULL, *best = NULL;
    int bestscore = 0;
    int gotcapability = 0;
    struct ast_variable *v = NULL, *tmpvar = NULL;
    struct ao2_iterator i;
 
    if (!iaxs[callno])
       return res;
    if (ies->called_number)
       ast_string_field_set(iaxs[callno], exten, ies->called_number);
    if (ies->calling_number) {
       if (ast_test_flag64(&globalflags, IAX_SHRINKCALLERID)) {
          ast_shrink_phone_number(ies->calling_number);
       }
       ast_string_field_set(iaxs[callno], cid_num, ies->calling_number);
    }
    if (ies->calling_name)
       ast_string_field_set(iaxs[callno], cid_name, ies->calling_name);
    if (ies->calling_ani)
       ast_string_field_set(iaxs[callno], ani, ies->calling_ani);
    if (ies->dnid)
       ast_string_field_set(iaxs[callno], dnid, ies->dnid);
    if (ies->rdnis)
       ast_string_field_set(iaxs[callno], rdnis, ies->rdnis);
    if (ies->called_context)
       ast_string_field_set(iaxs[callno], context, ies->called_context);
    if (ies->language)
       ast_string_field_set(iaxs[callno], language, ies->language);
    if (ies->username)
       ast_string_field_set(iaxs[callno], username, ies->username);
    if (ies->calling_ton > -1)
       iaxs[callno]->calling_ton = ies->calling_ton;
    if (ies->calling_tns > -1)
       iaxs[callno]->calling_tns = ies->calling_tns;
    if (ies->calling_pres > -1)
       iaxs[callno]->calling_pres = ies->calling_pres;
    if (ies->format)
       iaxs[callno]->peerformat = ies->format;
    if (ies->adsicpe)
       iaxs[callno]->peeradsicpe = ies->adsicpe;
    if (ies->capability) {
       gotcapability = 1;
       iaxs[callno]->peercapability = ies->capability;
    }
    if (ies->version)
       version = ies->version;
 
    /* Use provided preferences until told otherwise for actual preferences */
    if (ies->codec_prefs) {
       iax2_codec_pref_convert(&iaxs[callno]->rprefs, ies->codec_prefs, 32, 0);
    } else {
       memset(&iaxs[callno]->rprefs, 0, sizeof(iaxs[callno]->rprefs));
    }
    iaxs[callno]->prefs = iaxs[callno]->rprefs;
 
    if (!gotcapability) {
       iaxs[callno]->peercapability = iaxs[callno]->peerformat;
    }
    if (version > IAX_PROTO_VERSION) {
       ast_log(LOG_WARNING, "Peer '%s' has too new a protocol version (%d) for me\n",
             ast_sockaddr_stringify_addr(addr), version);
       return res;
    }
    /* Search the userlist for a compatible entry, and fill in the rest */
    i = ao2_iterator_init(users, 0);
    while ((user = ao2_iterator_next(&i))) {
       if ((ast_strlen_zero(iaxs[callno]->username) ||          /* No username specified */
          !strcmp(iaxs[callno]->username, user->name)) /* Or this username specified */
          && (ast_apply_acl(user->acl, addr, "IAX2 user ACL: ") == AST_SENSE_ALLOW)  /* Access is permitted from this IP */
          && (ast_strlen_zero(iaxs[callno]->context) ||         /* No context specified */
               apply_context(user->contexts, iaxs[callno]->context))) {        /* Context is permitted */
          if (!ast_strlen_zero(iaxs[callno]->username)) {
             /* Exact match, stop right now. */
             if (best)
                user_unref(best);
             best = user;
             break;
          } else if (ast_strlen_zero(user->secret) && ast_strlen_zero(user->dbsecret) && ast_strlen_zero(user->inkeys)) {
             /* No required authentication */
             if (user->acl) {
                /* There was host authentication and we passed, bonus! */
                if (bestscore < 4) {
                   bestscore = 4;
                   if (best)
                      user_unref(best);
                   best = user;
                   continue;
                }
             } else {
                /* No host access, but no secret, either, not bad */
                if (bestscore < 3) {
                   bestscore = 3;
                   if (best)
                      user_unref(best);
                   best = user;
                   continue;
                }
             }
          } else {
             if (user->acl) {
                /* Authentication, but host access too, eh, it's something.. */
                if (bestscore < 2) {
                   bestscore = 2;
                   if (best)
                      user_unref(best);
                   best = user;
                   continue;
                }
             } else {
                /* Authentication and no host access...  This is our baseline */
                if (bestscore < 1) {
                   bestscore = 1;
                   if (best)
                      user_unref(best);
                   best = user;
                   continue;
                }
             }
          }
       }
       user_unref(user);
    }
    ao2_iterator_destroy(&i);
    user = best;
    if (!user && !ast_strlen_zero(iaxs[callno]->username)) {
       user = realtime_user(iaxs[callno]->username, addr);
       if (user && (ast_apply_acl(user->acl, addr, "IAX2 user ACL: ") == AST_SENSE_DENY    /* Access is denied from this IP */
          || (!ast_strlen_zero(iaxs[callno]->context) &&              /* No context specified */
             !apply_context(user->contexts, iaxs[callno]->context)))) {  /* Context is permitted */
          user = user_unref(user);
       }
    }
    if (user) {
       /* We found our match (use the first) */
       /* copy vars */
       for (v = user->vars ; v ; v = v->next) {
          if ((tmpvar = ast_variable_new(v->name, v->value, v->file))) {
             if (ast_variable_list_replace(&iaxs[callno]->vars, tmpvar)) {
                tmpvar->next = iaxs[callno]->vars;
                iaxs[callno]->vars = tmpvar;
             }
          }
       }
       /* If a max AUTHREQ restriction is in place, activate it */
       if (user->maxauthreq > 0)
          ast_set_flag64(iaxs[callno], IAX_MAXAUTHREQ);
       iaxs[callno]->prefs = user->prefs;
       ast_copy_flags64(iaxs[callno], user, IAX_CODEC_USER_FIRST | IAX_IMMEDIATE | IAX_CODEC_NOPREFS | IAX_CODEC_NOCAP | IAX_FORCE_ENCRYPT);
       iaxs[callno]->encmethods = user->encmethods;
       /* Store the requested username if not specified */
       if (ast_strlen_zero(iaxs[callno]->username))
          ast_string_field_set(iaxs[callno], username, user->name);
       /* Store whether this is a trunked call, too, of course, and move if appropriate */
       ast_copy_flags64(iaxs[callno], user, IAX_TRUNK);
       iaxs[callno]->capability = user->capability;
       /* And use the default context */
       if (ast_strlen_zero(iaxs[callno]->context)) {
          if (user->contexts)
             ast_string_field_set(iaxs[callno], context, user->contexts->context);
          else
             ast_string_field_set(iaxs[callno], context, DEFAULT_CONTEXT);
       }
       /* And any input keys */
       ast_string_field_set(iaxs[callno], inkeys, user->inkeys);
       /* And the permitted authentication methods */
       iaxs[callno]->authmethods = user->authmethods;
       iaxs[callno]->adsi = user->adsi;
       /* If the user has callerid, override the remote caller id. */
       if (ast_test_flag64(user, IAX_HASCALLERID)) {
          iaxs[callno]->calling_tns = 0;
          iaxs[callno]->calling_ton = 0;
          ast_string_field_set(iaxs[callno], cid_num, user->cid_num);
          ast_string_field_set(iaxs[callno], cid_name, user->cid_name);
          ast_string_field_set(iaxs[callno], ani, user->cid_num);
          iaxs[callno]->calling_pres = AST_PRES_ALLOWED_USER_NUMBER_PASSED_SCREEN;
       } else if (ast_strlen_zero(iaxs[callno]->cid_num) && ast_strlen_zero(iaxs[callno]->cid_name)) {
          iaxs[callno]->calling_pres = AST_PRES_NUMBER_NOT_AVAILABLE;
       } /* else user is allowed to set their own CID settings */
       if (!ast_strlen_zero(user->accountcode))
          ast_string_field_set(iaxs[callno], accountcode, user->accountcode);
       if (!ast_strlen_zero(user->mohinterpret))
          ast_string_field_set(iaxs[callno], mohinterpret, user->mohinterpret);
       if (!ast_strlen_zero(user->mohsuggest))
          ast_string_field_set(iaxs[callno], mohsuggest, user->mohsuggest);
       if (!ast_strlen_zero(user->parkinglot))
          ast_string_field_set(iaxs[callno], parkinglot, user->parkinglot);
       if (user->amaflags)
          iaxs[callno]->amaflags = user->amaflags;
       if (!ast_strlen_zero(user->language))
          ast_string_field_set(iaxs[callno], language, user->language);
       ast_copy_flags64(iaxs[callno], user, IAX_NOTRANSFER | IAX_TRANSFERMEDIA | IAX_USEJITTERBUF | IAX_SENDCONNECTEDLINE | IAX_RECVCONNECTEDLINE);
       /* Keep this check last */
       if (!ast_strlen_zero(user->dbsecret)) {
          char *family, *key=NULL;
          char buf[80];
          family = ast_strdupa(user->dbsecret);
          key = strchr(family, '/');
          if (key) {
             *key = '\0';
             key++;
          }
          if (!key || ast_db_get(family, key, buf, sizeof(buf)))
             ast_log(LOG_WARNING, "Unable to retrieve database password for family/key '%s'!\n", user->dbsecret);
          else
             ast_string_field_set(iaxs[callno], secret, buf);
       } else
          ast_string_field_set(iaxs[callno], secret, user->secret);
       res = 0;
       user = user_unref(user);
    } else {
        /* user was not found, but we should still fake an AUTHREQ.
         * Set authmethods to the last known authmethod used by the system
         * Set a fake secret, it's not looked at, just required to attempt authentication.
         * Set authrej so the AUTHREP is rejected without even looking at its contents */
       iaxs[callno]->authmethods = last_authmethod ? last_authmethod : IAX_AUTH_MD5;
       ast_string_field_set(iaxs[callno], secret, "badsecret");
       iaxs[callno]->authrej = 1;
       if (!ast_strlen_zero(iaxs[callno]->username)) {
          /* only send the AUTHREQ if a username was specified. */
          res = 0;
       }
    }
    ast_set2_flag64(iaxs[callno], iax2_getpeertrunk(*addr), IAX_TRUNK);
    return res;
 }

◆ check_provisioning()

static int check_provisioning	(	struct ast_sockaddr *	addr,
		int	sockfd,
		char *	si,
		unsigned int	ver
	)

static

Definition at line 9599 of file chan_iax2.c.

References ast_debug, iax2_provision(), iax_provision_version(), and NULL.

Referenced by socket_process_helper().

 {
    unsigned int ourver;
    char rsi[80];
    snprintf(rsi, sizeof(rsi), "si-%s", si);
    if (iax_provision_version(&ourver, rsi, 1))
       return 0;
    ast_debug(1, "Service identifier '%s', we think '%08x', they think '%08x'\n", si, ourver, ver);
    if (ourver != ver)
       iax2_provision(addr, sockfd, NULL, rsi, 1);
    return 0;
 }

◆ check_srcaddr()

static int check_srcaddr ( struct ast_sockaddr * addr )

static

Check if address can be used as packet source.

Returns: 0 address available, 1 address unavailable, -1 error

Definition at line 12673 of file chan_iax2.c.

References ast_bind(), ast_debug, ast_log, errno, LOG_ERROR, and ast_sockaddr::ss.

Referenced by peer_set_srcaddr().

 {
    int sd;
 
    sd = socket(addr->ss.ss_family, SOCK_DGRAM, 0);
    if (sd < 0) {
       ast_log(LOG_ERROR, "Socket: %s\n", strerror(errno));
       return -1;
    }
 
    if (ast_bind(sd, addr) < 0) {
       ast_debug(1, "Can't bind: %s\n", strerror(errno));
       close(sd);
       return 1;
    }
 
    close(sd);
    return 0;
 }

◆ cleanup_thread_list()

static void cleanup_thread_list ( void * head )

static

Definition at line 14581 of file chan_iax2.c.

References AST_LIST_HEAD, AST_LIST_LOCK, AST_LIST_REMOVE_HEAD, AST_LIST_UNLOCK, iax2_thread::cond, iax2_thread::list, iax2_thread::lock, NULL, signal_condition(), iax2_thread::stop, thread, and iax2_thread::threadid.

Referenced by __unload_module().

 {
    AST_LIST_HEAD(iax2_thread_list, iax2_thread);
    struct iax2_thread_list *list_head = head;
    struct iax2_thread *thread;
 
    AST_LIST_LOCK(list_head);
    while ((thread = AST_LIST_REMOVE_HEAD(list_head, list))) {
       pthread_t thread_id = thread->threadid;
 
       thread->stop = 1;
       signal_condition(&thread->lock, &thread->cond);
 
       AST_LIST_UNLOCK(list_head);
       pthread_join(thread_id, NULL);
       AST_LIST_LOCK(list_head);
    }
    AST_LIST_UNLOCK(list_head);
 }

◆ codec_choose_from_prefs()

static struct ast_format* codec_choose_from_prefs	(	struct iax2_codec_pref *	pref,
		struct ast_format_cap *	cap
	)

static

Definition at line 1847 of file chan_iax2.c.

References ao2_cleanup, ARRAY_LEN, ast_debug, ast_format_cap_get_compatible_format(), ast_format_compatibility_bitfield2format(), ast_format_get_type(), AST_MEDIA_TYPE_AUDIO, iax2_codec_pref_order_value_to_format_bitfield(), NULL, and iax2_codec_pref::order.

Referenced by iax2_codec_choose().

 {
    int x;
    struct ast_format *found_format = NULL;
 
    for (x = 0; x < ARRAY_LEN(pref->order); ++x) {
       struct ast_format *pref_format;
       uint64_t pref_bitfield;
 
       pref_bitfield = iax2_codec_pref_order_value_to_format_bitfield(pref->order[x]);
       if (!pref_bitfield) {
          break;
       }
 
       pref_format = ast_format_compatibility_bitfield2format(pref_bitfield);
       if (!pref_format) {
          /* The bitfield is not associated with any format. */
          continue;
       }
       found_format = ast_format_cap_get_compatible_format(cap, pref_format);
       if (found_format) {
          break;
       }
    }
 
    if (found_format && (ast_format_get_type(found_format) == AST_MEDIA_TYPE_AUDIO)) {
       return found_format;
    }
 
    ast_debug(4, "Could not find preferred codec - Returning zero codec.\n");
    ao2_cleanup(found_format);
    return NULL;
 }

◆ complete_dpreply()

static int complete_dpreply	(	struct chan_iax2_pvt *	pvt,
		struct iax_ies *	ies
	)

static

Definition at line 8602 of file chan_iax2.c.

References ARRAY_LEN, ast_copy_string(), AST_LIST_LOCK, AST_LIST_REMOVE_CURRENT, AST_LIST_TRAVERSE_SAFE_BEGIN, AST_LIST_TRAVERSE_SAFE_END, AST_LIST_UNLOCK, CACHE_FLAG_CANEXIST, CACHE_FLAG_EXISTS, CACHE_FLAG_MATCHMORE, CACHE_FLAG_NONEXISTENT, CACHE_FLAG_PENDING, CACHE_FLAG_UNKNOWN, iax_ies::called_number, iax2_dpcache::callno, iax_ies::dpstatus, iax2_dpcache::expiry, exten, iax2_dpcache::exten, iax2_dpcache::flags, IAX_DPSTATUS_CANEXIST, IAX_DPSTATUS_EXISTS, IAX_DPSTATUS_MATCHMORE, IAX_DPSTATUS_NONEXISTENT, iaxdefaultdpcache, matchmore(), NULL, iax2_dpcache::orig, iax2_dpcache::peer_list, iax_ies::refresh, status, and iax2_dpcache::waiters.

Referenced by socket_process_helper().

 {
    char exten[256] = "";
    int status = CACHE_FLAG_UNKNOWN, expiry = iaxdefaultdpcache, x, matchmore = 0;
    struct iax2_dpcache *dp = NULL;
 
    if (ies->called_number)
       ast_copy_string(exten, ies->called_number, sizeof(exten));
 
    if (ies->dpstatus & IAX_DPSTATUS_EXISTS)
       status = CACHE_FLAG_EXISTS;
    else if (ies->dpstatus & IAX_DPSTATUS_CANEXIST)
       status = CACHE_FLAG_CANEXIST;
    else if (ies->dpstatus & IAX_DPSTATUS_NONEXISTENT)
       status = CACHE_FLAG_NONEXISTENT;
 
    if (ies->refresh)
       expiry = ies->refresh;
    if (ies->dpstatus & IAX_DPSTATUS_MATCHMORE)
       matchmore = CACHE_FLAG_MATCHMORE;
 
    AST_LIST_LOCK(&dpcache);
    AST_LIST_TRAVERSE_SAFE_BEGIN(&dpcache, dp, peer_list) {
       if (strcmp(dp->exten, exten))
          continue;
       AST_LIST_REMOVE_CURRENT(peer_list);
       dp->callno = 0;
       dp->expiry.tv_sec = dp->orig.tv_sec + expiry;
       if (dp->flags & CACHE_FLAG_PENDING) {
          dp->flags &= ~CACHE_FLAG_PENDING;
          dp->flags |= status;
          dp->flags |= matchmore;
       }
       /* Wake up waiters */
       for (x = 0; x < ARRAY_LEN(dp->waiters); x++) {
          if (dp->waiters[x] > -1) {
             if (write(dp->waiters[x], "asdf", 4) < 0) {
             }
          }
       }
    }
    AST_LIST_TRAVERSE_SAFE_END;
    AST_LIST_UNLOCK(&dpcache);
 
    return 0;
 }

◆ complete_iax2_peers()

static char * complete_iax2_peers	(	const char *	line,
		const char *	word,
		int	pos,
		int	state,
		uint64_t	flags
	)

static

Definition at line 3891 of file chan_iax2.c.

References ao2_iterator_destroy(), ao2_iterator_init(), ao2_iterator_next, ast_strdup, ast_test_flag64, iax2_peer::name, NULL, and peer_unref().

Referenced by handle_cli_iax2_prune_realtime(), handle_cli_iax2_set_debug(), and handle_cli_iax2_show_peer().

 {
    int which = 0;
    struct iax2_peer *peer;
    char *res = NULL;
    int wordlen = strlen(word);
    struct ao2_iterator i;
 
    i = ao2_iterator_init(peers, 0);
    while ((peer = ao2_iterator_next(&i))) {
       if (!strncasecmp(peer->name, word, wordlen) && ++which > state
          && (!flags || ast_test_flag64(peer, flags))) {
          res = ast_strdup(peer->name);
          peer_unref(peer);
          break;
       }
       peer_unref(peer);
    }
    ao2_iterator_destroy(&i);
 
    return res;
 }

◆ complete_iax2_unregister()

static char * complete_iax2_unregister	(	const char *	line,
		const char *	word,
		int	pos,
		int	state
	)

static

Definition at line 7148 of file chan_iax2.c.

References ao2_iterator_destroy(), ao2_iterator_init(), ao2_iterator_next, ast_strdup, iax2_peer::expire, iax2_peer::name, NULL, and peer_unref().

Referenced by handle_cli_iax2_unregister().

 {
    int which = 0;
    struct iax2_peer *p = NULL;
    char *res = NULL;
    int wordlen = strlen(word);
 
    /* 0 - iax2; 1 - unregister; 2 - <peername> */
    if (pos == 2) {
       struct ao2_iterator i = ao2_iterator_init(peers, 0);
       while ((p = ao2_iterator_next(&i))) {
          if (!strncasecmp(p->name, word, wordlen) &&
             ++which > state && p->expire > -1) {
             res = ast_strdup(p->name);
             peer_unref(p);
             break;
          }
          peer_unref(p);
       }
       ao2_iterator_destroy(&i);
    }
 
    return res;
 }

◆ complete_transfer()

static int complete_transfer	(	int	callno,
		struct iax_ies *	ies
	)

static

Definition at line 8649 of file chan_iax2.c.

References chan_iax2_pvt::addr, chan_iax2_pvt::aseqno, AST_LIST_TRAVERSE, ast_log, iax_ies::callno, chan_iax2_pvt::callno, jb_frame::data, DEFAULT_RETRY_TIME, frame_queue, iax2_frame_free(), chan_iax2_pvt::iseqno, chan_iax2_pvt::jb, jb_getall(), JB_OK, jb_reset(), chan_iax2_pvt::lag, chan_iax2_pvt::last, chan_iax2_pvt::lastsent, iax_frame::list, LOG_WARNING, chan_iax2_pvt::nextpred, chan_iax2_pvt::offset, chan_iax2_pvt::oseqno, chan_iax2_pvt::peercallno, peercnt_add(), peercnt_remove_by_addr(), chan_iax2_pvt::pingtime, remove_by_peercallno(), remove_by_transfercallno(), iax_frame::retries, chan_iax2_pvt::rseqno, chan_iax2_pvt::rxcore, store_by_peercallno(), chan_iax2_pvt::svideoformat, chan_iax2_pvt::svoiceformat, chan_iax2_pvt::transfer, TRANSFER_NONE, chan_iax2_pvt::transfercallno, chan_iax2_pvt::transferring, chan_iax2_pvt::videoformat, and chan_iax2_pvt::voiceformat.

Referenced by socket_process_helper().

 {
    int peercallno = 0;
    struct chan_iax2_pvt *pvt = iaxs[callno];
    struct iax_frame *cur;
    jb_frame frame;
 
    if (ies->callno)
       peercallno = ies->callno;
 
    if (peercallno < 1) {
       ast_log(LOG_WARNING, "Invalid transfer request\n");
       return -1;
    }
    remove_by_transfercallno(pvt);
    /* since a transfer has taken place, the address will change.
     * This must be accounted for in the peercnts table.  Remove
     * the old address and add the new one */
    peercnt_remove_by_addr(&pvt->addr);
    peercnt_add(&pvt->transfer);
    /* now copy over the new address */
    memcpy(&pvt->addr, &pvt->transfer, sizeof(pvt->addr));
    memset(&pvt->transfer, 0, sizeof(pvt->transfer));
    /* Reset sequence numbers */
    pvt->oseqno = 0;
    pvt->rseqno = 0;
    pvt->iseqno = 0;
    pvt->aseqno = 0;
 
    if (pvt->peercallno) {
       remove_by_peercallno(pvt);
    }
    pvt->peercallno = peercallno;
    /*this is where the transfering call swiches hash tables */
    store_by_peercallno(pvt);
    pvt->transferring = TRANSFER_NONE;
    pvt->svoiceformat = -1;
    pvt->voiceformat = 0;
    pvt->svideoformat = -1;
    pvt->videoformat = 0;
    pvt->transfercallno = 0;
    memset(&pvt->rxcore, 0, sizeof(pvt->rxcore));
    memset(&pvt->offset, 0, sizeof(pvt->offset));
    /* reset jitterbuffer */
    while(jb_getall(pvt->jb,&frame) == JB_OK)
       iax2_frame_free(frame.data);
    jb_reset(pvt->jb);
    pvt->lag = 0;
    pvt->last = 0;
    pvt->lastsent = 0;
    pvt->nextpred = 0;
    pvt->pingtime = DEFAULT_RETRY_TIME;
    AST_LIST_TRAVERSE(&frame_queue[callno], cur, list) {
       /* We must cancel any packets that would have been transmitted
          because now we're talking to someone new.  It's okay, they
          were transmitted to someone that didn't care anyway. */
       cur->retries = -1;
    }
    return 0;
 }

◆ compress_subclass()

static unsigned char compress_subclass ( iax2_format subclass )

static

Definition at line 1813 of file chan_iax2.c.

References ast_log, IAX_FLAG_SC_LOG, IAX_MAX_SHIFT, and LOG_WARNING.

Referenced by iax2_send(), raw_hangup(), and send_apathetic_reply().

 {
    int x;
    int power=-1;
    /* If it's 64 or smaller, just return it */
    if (subclass < IAX_FLAG_SC_LOG)
       return subclass;
    /* Otherwise find its power */
    for (x = 0; x < IAX_MAX_SHIFT; x++) {
       if (subclass & (1LL << x)) {
          if (power > -1) {
             ast_log(LOG_WARNING, "Can't compress subclass %lld\n", (long long) subclass);
             return 0;
          } else
             power = x;
       }
    }
    return power | IAX_FLAG_SC_LOG;
 }

◆ construct_rr()

static void construct_rr	(	struct chan_iax2_pvt *	pvt,
		struct iax_ie_data *	iep
	)

static

Definition at line 9612 of file chan_iax2.c.

References jb_info::current, jb_info::frames_dropped, jb_info::frames_in, jb_info::frames_lost, jb_info::frames_ooo, iax_ie_append_int(), iax_ie_append_short(), IAX_IE_RR_DELAY, IAX_IE_RR_DROPPED, IAX_IE_RR_JITTER, IAX_IE_RR_LOSS, IAX_IE_RR_OOO, IAX_IE_RR_PKTS, chan_iax2_pvt::jb, jb_getinfo(), jb_info::jitter, jb_info::losspct, and jb_info::min.

Referenced by socket_process_helper().

 {
    jb_info stats;
    jb_getinfo(pvt->jb, &stats);
 
    memset(iep, 0, sizeof(*iep));
 
    iax_ie_append_int(iep,IAX_IE_RR_JITTER, stats.jitter);
    if(stats.frames_in == 0) stats.frames_in = 1;
    iax_ie_append_int(iep,IAX_IE_RR_LOSS, ((0xff & (stats.losspct/1000)) << 24 | (stats.frames_lost & 0x00ffffff)));
    iax_ie_append_int(iep,IAX_IE_RR_PKTS, stats.frames_in);
    iax_ie_append_short(iep,IAX_IE_RR_DELAY, stats.current - stats.min);
    iax_ie_append_int(iep,IAX_IE_RR_DROPPED, stats.frames_dropped);
    iax_ie_append_int(iep,IAX_IE_RR_OOO, stats.frames_ooo);
 }

◆ create_addr()

static int create_addr	(	const char *	peername,
		struct ast_channel *	c,
		struct ast_sockaddr *	addr,
		struct create_addr_info *	cai
	)

static

Definition at line 4608 of file chan_iax2.c.

Referenced by cache_get_callno_locked(), iax2_call(), iax2_provision(), and iax2_request().

 {
    struct iax2_peer *peer;
    int res = -1;
 
    ast_clear_flag64(cai, IAX_SENDANI | IAX_TRUNK);
    cai->sockfd = defaultsockfd;
    cai->maxtime = 0;
 
    if (!(peer = find_peer(peername, 1))) {
       struct ast_sockaddr peer_addr;
 
       peer_addr.ss.ss_family = AST_AF_UNSPEC;
       cai->found = 0;
       if (ast_get_ip_or_srv(&peer_addr, peername, srvlookup ? "_iax._udp" : NULL)) {
          ast_log(LOG_WARNING, "No such host: %s\n", peername);
          return -1;
       }
 
       if (!ast_sockaddr_port(&peer_addr)) {
          ast_sockaddr_set_port(&peer_addr, IAX_DEFAULT_PORTNO);
       }
 
       ast_sockaddr_copy(addr, &peer_addr);
       /*
        * Use The global iax prefs for unknown peer/user.
        * However, move the calling channel's native codec to
        * the top of the preference list.
        */
       cai->prefs = prefs_global;
       if (c) {
          int i;
 
          for (i = 0; i < ast_format_cap_count(ast_channel_nativeformats(c)); i++) {
             struct ast_format *format = ast_format_cap_get_format(
                ast_channel_nativeformats(c), i);
             iax2_codec_pref_prepend(&cai->prefs, format,
                ast_format_cap_get_format_framing(ast_channel_nativeformats(c), format),
                1);
             ao2_ref(format, -1);
          }
       }
       return 0;
    }
 
    cai->found = 1;
 
    /* if the peer has no address (current or default), return failure */
    if (ast_sockaddr_isnull(&peer->addr) && ast_sockaddr_isnull(&peer->defaddr)) {
       goto return_unref;
    }
 
    /* if the peer is being monitored and is currently unreachable, return failure */
    if (peer->maxms && ((peer->lastms > peer->maxms) || (peer->lastms < 0)))
       goto return_unref;
 
    ast_copy_flags64(cai, peer, IAX_SENDANI | IAX_TRUNK | IAX_NOTRANSFER | IAX_TRANSFERMEDIA | IAX_USEJITTERBUF | IAX_SENDCONNECTEDLINE | IAX_RECVCONNECTEDLINE | IAX_FORCE_ENCRYPT);
    cai->maxtime = peer->maxms;
    cai->capability = peer->capability;
    cai->encmethods = peer->encmethods;
    cai->authmethods = peer->authmethods;
    cai->sockfd = peer->sockfd;
    cai->adsi = peer->adsi;
    cai->prefs = peer->prefs;
    /* Move the calling channel's native codec to the top of the preference list */
    if (c) {
       int i;
 
       for (i = 0; i < ast_format_cap_count(ast_channel_nativeformats(c)); i++) {
          struct ast_format *tmpfmt = ast_format_cap_get_format(
             ast_channel_nativeformats(c), i);
          iax2_codec_pref_prepend(&cai->prefs, tmpfmt,
             ast_format_cap_get_format_framing(ast_channel_nativeformats(c), tmpfmt),
             1);
          ao2_ref(tmpfmt, -1);
       }
    }
    ast_copy_string(cai->context, peer->context, sizeof(cai->context));
    ast_copy_string(cai->peercontext, peer->peercontext, sizeof(cai->peercontext));
    ast_copy_string(cai->username, peer->username, sizeof(cai->username));
    ast_copy_string(cai->timezone, peer->zonetag, sizeof(cai->timezone));
    ast_copy_string(cai->outkey, peer->outkey, sizeof(cai->outkey));
    ast_copy_string(cai->cid_num, peer->cid_num, sizeof(cai->cid_num));
    ast_copy_string(cai->cid_name, peer->cid_name, sizeof(cai->cid_name));
    ast_copy_string(cai->mohinterpret, peer->mohinterpret, sizeof(cai->mohinterpret));
    ast_copy_string(cai->mohsuggest, peer->mohsuggest, sizeof(cai->mohsuggest));
    if (ast_strlen_zero(peer->dbsecret)) {
       ast_copy_string(cai->secret, peer->secret, sizeof(cai->secret));
    } else {
       char *family;
       char *key = NULL;
 
       family = ast_strdupa(peer->dbsecret);
       key = strchr(family, '/');
       if (key)
          *key++ = '\0';
       if (!key || ast_db_get(family, key, cai->secret, sizeof(cai->secret))) {
          ast_log(LOG_WARNING, "Unable to retrieve database password for family/key '%s'!\n", peer->dbsecret);
          goto return_unref;
       }
    }
 
    if (!ast_sockaddr_isnull(&peer->addr)) {
       ast_sockaddr_copy(addr, &peer->addr);
    } else {
       ast_sockaddr_copy(addr, &peer->defaddr);
    }
 
    res = 0;
 
 return_unref:
    peer_unref(peer);
 
    return res;
 }

◆ create_callno_pools()

static int create_callno_pools ( void )

static

Definition at line 3021 of file chan_iax2.c.

References ast_assert, call_number_pool::available, callno_pool, callno_pool_trunk, call_number_pool::capacity, IAX_MAX_CALLS, call_number_pool::numbers, and TRUNK_CALL_START.

Referenced by load_objects().

 {
    uint16_t i;
 
    callno_pool.available = callno_pool_trunk.available = 0;
 
    /* We start at 2.  0 and 1 are reserved. */
    for (i = 2; i < TRUNK_CALL_START; i++) {
       callno_pool.numbers[callno_pool.available] = i;
       callno_pool.available++;
    }
 
    for (i = TRUNK_CALL_START; i < IAX_MAX_CALLS; i++) {
       callno_pool_trunk.numbers[callno_pool_trunk.available] = i;
       callno_pool_trunk.available++;
    }
 
    callno_pool.capacity = callno_pool.available;
    callno_pool_trunk.capacity = callno_pool_trunk.available;
 
    ast_assert(callno_pool.capacity && callno_pool_trunk.capacity);
 
    return 0;
 }

◆ decode_frame()

static int decode_frame	(	ast_aes_decrypt_key *	dcx,
		struct ast_iax2_full_hdr *	fh,
		struct ast_frame *	f,
		int *	datalen
	)

static

Definition at line 6429 of file chan_iax2.c.

References ast_alloca, ast_debug, ast_format_compatibility_bitfield2format(), AST_FRAME_VIDEO, AST_FRAME_VOICE, ast_iax2_full_hdr::csub, ast_iax2_full_enc_hdr::encdata, ast_iax2_mini_enc_hdr::encdata, ast_frame_subclass::format, ast_frame::frametype, IAX_FLAG_FULL, iaxdebug, ast_frame_subclass::integer, memcpy_decrypt(), ast_iax2_full_hdr::scallno, ast_frame::subclass, ast_iax2_full_hdr::type, and uncompress_subclass().

Referenced by decrypt_frame(), jb_debug_output(), and update_packet().

 {
    int padding;
    unsigned char *workspace;
 
    workspace = ast_alloca(*datalen);
    memset(f, 0, sizeof(*f));
    if (ntohs(fh->scallno) & IAX_FLAG_FULL) {
       struct ast_iax2_full_enc_hdr *efh = (struct ast_iax2_full_enc_hdr *)fh;
       if (*datalen < 16 + sizeof(struct ast_iax2_full_hdr))
          return -1;
       /* Decrypt */
       memcpy_decrypt(workspace, efh->encdata, *datalen - sizeof(struct ast_iax2_full_enc_hdr), dcx);
 
       padding = 16 + (workspace[15] & 0x0f);
       if (iaxdebug)
          ast_debug(1, "Decoding full frame with length %d (padding = %d) (15=%02hhx)\n", *datalen, padding, workspace[15]);
       if (*datalen < padding + sizeof(struct ast_iax2_full_hdr))
          return -1;
 
       *datalen -= padding;
       memcpy(efh->encdata, workspace + padding, *datalen - sizeof(struct ast_iax2_full_enc_hdr));
       f->frametype = fh->type;
       if (f->frametype == AST_FRAME_VIDEO) {
          f->subclass.format = ast_format_compatibility_bitfield2format(uncompress_subclass(fh->csub & ~0x40) | ((fh->csub >> 6) & 0x1));
       } else if (f->frametype == AST_FRAME_VOICE) {
          f->subclass.format = ast_format_compatibility_bitfield2format(uncompress_subclass(fh->csub));
       } else {
          f->subclass.integer = uncompress_subclass(fh->csub);
       }
    } else {
       struct ast_iax2_mini_enc_hdr *efh = (struct ast_iax2_mini_enc_hdr *)fh;
       if (iaxdebug)
          ast_debug(1, "Decoding mini with length %d\n", *datalen);
       if (*datalen < 16 + sizeof(struct ast_iax2_mini_hdr))
          return -1;
       /* Decrypt */
       memcpy_decrypt(workspace, efh->encdata, *datalen - sizeof(struct ast_iax2_mini_enc_hdr), dcx);
       padding = 16 + (workspace[15] & 0x0f);
       if (*datalen < padding + sizeof(struct ast_iax2_mini_hdr))
          return -1;
       *datalen -= padding;
       memcpy(efh->encdata, workspace + padding, *datalen - sizeof(struct ast_iax2_mini_enc_hdr));
    }
    return 0;
 }

◆ decrypt_frame()

static int decrypt_frame	(	int	callno,
		struct ast_iax2_full_hdr *	fh,
		struct ast_frame *	f,
		int *	datalen
	)

static

Definition at line 6515 of file chan_iax2.c.

References ast_set_flag64, ast_strdupa, ast_test_flag64, build_encryption_keys(), challenge(), decode_frame(), IAX_KEYPOPULATED, MD5Final(), MD5Init(), MD5Update(), and strsep().

Referenced by socket_process_helper().

 {
    int res=-1;
    if (!ast_test_flag64(iaxs[callno], IAX_KEYPOPULATED)) {
       /* Search for possible keys, given secrets */
       struct MD5Context md5;
       unsigned char digest[16];
       char *tmppw, *stringp;
 
       tmppw = ast_strdupa(iaxs[callno]->secret);
       stringp = tmppw;
       while ((tmppw = strsep(&stringp, ";"))) {
          MD5Init(&md5);
          MD5Update(&md5, (unsigned char *)iaxs[callno]->challenge, strlen(iaxs[callno]->challenge));
          MD5Update(&md5, (unsigned char *)tmppw, strlen(tmppw));
          MD5Final(digest, &md5);
          build_encryption_keys(digest, iaxs[callno]);
          res = decode_frame(&iaxs[callno]->dcx, fh, f, datalen);
          if (!res) {
             ast_set_flag64(iaxs[callno], IAX_KEYPOPULATED);
             break;
          }
       }
    } else
       res = decode_frame(&iaxs[callno]->dcx, fh, f, datalen);
    return res;
 }

◆ defer_full_frame()

static void defer_full_frame	(	struct iax2_thread *	from_here,
		struct iax2_thread *	to_here
	)

static

Queue the last read full frame for processing by a certain thread.

If there are already any full frames queued, they are sorted by sequence number.

Definition at line 9742 of file chan_iax2.c.

References ast_calloc, ast_cond_signal, AST_LIST_INSERT_BEFORE_CURRENT, AST_LIST_INSERT_TAIL, AST_LIST_TRAVERSE_SAFE_BEGIN, AST_LIST_TRAVERSE_SAFE_END, ast_mutex_lock, ast_mutex_unlock, iax2_pkt_buf::buf, iax2_thread::buf, iax2_thread::buf_len, iax2_thread::cond, iax2_thread::full_frames, IAX_IOSTATE_READY, if(), iax2_thread::iostate, iax2_pkt_buf::len, iax2_thread::lock, and ast_iax2_full_hdr::oseqno.

Referenced by socket_read().

 {
    struct iax2_pkt_buf *pkt_buf, *cur_pkt_buf;
    struct ast_iax2_full_hdr *fh, *cur_fh;
 
    if (!(pkt_buf = ast_calloc(1, sizeof(*pkt_buf) + from_here->buf_len)))
       return;
 
    pkt_buf->len = from_here->buf_len;
    memcpy(pkt_buf->buf, from_here->buf, pkt_buf->len);
 
    fh = (struct ast_iax2_full_hdr *) pkt_buf->buf;
    ast_mutex_lock(&to_here->lock);
    AST_LIST_TRAVERSE_SAFE_BEGIN(&to_here->full_frames, cur_pkt_buf, entry) {
       cur_fh = (struct ast_iax2_full_hdr *) cur_pkt_buf->buf;
       if (fh->oseqno < cur_fh->oseqno) {
          AST_LIST_INSERT_BEFORE_CURRENT(pkt_buf, entry);
          break;
       }
    }
    AST_LIST_TRAVERSE_SAFE_END
 
    if (!cur_pkt_buf)
       AST_LIST_INSERT_TAIL(&to_here->full_frames, pkt_buf, entry);
 
    to_here->iostate = IAX_IOSTATE_READY;
    ast_cond_signal(&to_here->cond);
 
    ast_mutex_unlock(&to_here->lock);
 }

◆ delete_users()

static void delete_users ( void )

static

Definition at line 13399 of file chan_iax2.c.

References ao2_callback, ast_dnsmgr_release(), ast_free, AST_LIST_LOCK, AST_LIST_REMOVE_HEAD, AST_LIST_UNLOCK, ast_mutex_lock, ast_mutex_unlock, AST_SCHED_DEL, iax2_registry::callno, iax2_registry::dnsmgr, iax2_registry::expire, iax2_destroy(), NULL, OBJ_NODATA, peer_delme_cb(), chan_iax2_pvt::reg, and user_delme_cb().

Referenced by __unload_module(), and set_config_destroy().

 {
    struct iax2_registry *reg;
 
    ao2_callback(users, OBJ_NODATA, user_delme_cb, NULL);
 
    AST_LIST_LOCK(&registrations);
    while ((reg = AST_LIST_REMOVE_HEAD(&registrations, entry))) {
       if (sched) {
          AST_SCHED_DEL(sched, reg->expire);
       }
       if (reg->callno) {
          int callno = reg->callno;
          ast_mutex_lock(&iaxsl[callno]);
          if (iaxs[callno]) {
             iaxs[callno]->reg = NULL;
             iax2_destroy(callno);
          }
          ast_mutex_unlock(&iaxsl[callno]);
       }
       if (reg->dnsmgr)
          ast_dnsmgr_release(reg->dnsmgr);
       ast_free(reg);
    }
    AST_LIST_UNLOCK(&registrations);
 
    ao2_callback(peers, OBJ_NODATA, peer_delme_cb, NULL);
 }

◆ dp_lookup()

static void dp_lookup	(	int	callno,
		const char *	context,
		const char *	callednum,
		const char *	callerid,
		int	skiplock
	)

static

Definition at line 9538 of file chan_iax2.c.

References ast_canmatch_extension(), ast_exists_extension(), AST_FRAME_IAX, ast_ignore_pattern(), ast_matchmore_extension(), ast_mutex_lock, ast_mutex_unlock, iax_ie_data::buf, IAX_COMMAND_DPREP, IAX_DPSTATUS_CANEXIST, IAX_DPSTATUS_EXISTS, IAX_DPSTATUS_IGNOREPAT, IAX_DPSTATUS_MATCHMORE, IAX_DPSTATUS_NONEXISTENT, iax_ie_append_short(), iax_ie_append_str(), IAX_IE_CALLED_NUMBER, IAX_IE_DPSTATUS, IAX_IE_REFRESH, iaxdefaultdpcache, NULL, iax_ie_data::pos, and send_command().

Referenced by dp_lookup_thread(), and socket_process_helper().

 {
    unsigned short dpstatus = 0;
    struct iax_ie_data ied1;
    int mm;
 
    memset(&ied1, 0, sizeof(ied1));
    mm = ast_matchmore_extension(NULL, context, callednum, 1, callerid);
    /* Must be started */
    if (ast_exists_extension(NULL, context, callednum, 1, callerid)) {
       dpstatus = IAX_DPSTATUS_EXISTS;
    } else if (ast_canmatch_extension(NULL, context, callednum, 1, callerid)) {
       dpstatus = IAX_DPSTATUS_CANEXIST;
    } else {
       dpstatus = IAX_DPSTATUS_NONEXISTENT;
    }
    if (ast_ignore_pattern(context, callednum))
       dpstatus |= IAX_DPSTATUS_IGNOREPAT;
    if (mm)
       dpstatus |= IAX_DPSTATUS_MATCHMORE;
    if (!skiplock)
       ast_mutex_lock(&iaxsl[callno]);
    if (iaxs[callno]) {
       iax_ie_append_str(&ied1, IAX_IE_CALLED_NUMBER, callednum);
       iax_ie_append_short(&ied1, IAX_IE_DPSTATUS, dpstatus);
       iax_ie_append_short(&ied1, IAX_IE_REFRESH, iaxdefaultdpcache);
       send_command(iaxs[callno], AST_FRAME_IAX, IAX_COMMAND_DPREP, 0, ied1.buf, ied1.pos, -1);
    }
    if (!skiplock)
       ast_mutex_unlock(&iaxsl[callno]);
 }

◆ dp_lookup_thread()

static void* dp_lookup_thread ( void * data )

static

Definition at line 9570 of file chan_iax2.c.

References ast_free, dpreq_data::callednum, dpreq_data::callerid, dpreq_data::callno, dpreq_data::context, stasis_subscription::data, dp_lookup(), and NULL.

Referenced by spawn_dp_lookup().

 {
    /* Look up for dpreq */
    struct dpreq_data *dpr = data;
    dp_lookup(dpr->callno, dpr->context, dpr->callednum, dpr->callerid, 0);
    if (dpr->callerid)
       ast_free(dpr->callerid);
    ast_free(dpr);
    return NULL;
 }

◆ encmethods_to_str()

static void encmethods_to_str	(	int	e,
		struct ast_str **	buf
	)

static

Definition at line 1750 of file chan_iax2.c.

References ast_str_append(), ast_str_set(), ast_str_strlen(), IAX_ENCRYPT_AES128, and IAX_ENCRYPT_KEYROTATE.

Referenced by _iax2_show_peers_one(), and handle_cli_iax2_show_peer().

 {
    ast_str_set(buf, 0, "(");
    if (e & IAX_ENCRYPT_AES128) {
       ast_str_append(buf, 0, "aes128");
    }
    if (e & IAX_ENCRYPT_KEYROTATE) {
       ast_str_append(buf, 0, ",keyrotate");
    }
    if (ast_str_strlen(*buf) > 1) {
       ast_str_append(buf, 0, ")");
    } else {
       ast_str_set(buf, 0, "No");
    }
 }

◆ encrypt_frame()

static int encrypt_frame	(	ast_aes_encrypt_key *	ecx,
		struct ast_iax2_full_hdr *	fh,
		unsigned char *	poo,
		int *	datalen
	)

static

Definition at line 6476 of file chan_iax2.c.

References ast_alloca, ast_debug, ast_iax2_full_hdr::csub, ast_iax2_full_enc_hdr::encdata, ast_iax2_mini_enc_hdr::encdata, IAX_FLAG_FULL, iaxdebug, memcpy_encrypt(), ast_iax2_full_hdr::scallno, and ast_iax2_full_hdr::type.

Referenced by iax2_send(), jb_debug_output(), and update_packet().

 {
    int padding;
    unsigned char *workspace;
    workspace = ast_alloca(*datalen + 32);
    if (ntohs(fh->scallno) & IAX_FLAG_FULL) {
       struct ast_iax2_full_enc_hdr *efh = (struct ast_iax2_full_enc_hdr *)fh;
       if (iaxdebug)
          ast_debug(1, "Encoding full frame %d/%d with length %d\n", fh->type, fh->csub, *datalen);
       padding = 16 - ((*datalen - sizeof(struct ast_iax2_full_enc_hdr)) % 16);
       padding = 16 + (padding & 0xf);
       memcpy(workspace, poo, padding);
       memcpy(workspace + padding, efh->encdata, *datalen - sizeof(struct ast_iax2_full_enc_hdr));
       workspace[15] &= 0xf0;
       workspace[15] |= (padding & 0xf);
       if (iaxdebug)
          ast_debug(1, "Encoding full frame %d/%d with length %d + %d padding (15=%02hhx)\n", fh->type, fh->csub, *datalen, padding, workspace[15]);
       *datalen += padding;
       memcpy_encrypt(efh->encdata, workspace, *datalen - sizeof(struct ast_iax2_full_enc_hdr), ecx);
       if (*datalen >= 32 + sizeof(struct ast_iax2_full_enc_hdr))
          memcpy(poo, workspace + *datalen - 32, 32);
    } else {
       struct ast_iax2_mini_enc_hdr *efh = (struct ast_iax2_mini_enc_hdr *)fh;
       if (iaxdebug)
          ast_debug(1, "Encoding mini frame with length %d\n", *datalen);
       padding = 16 - ((*datalen - sizeof(struct ast_iax2_mini_enc_hdr)) % 16);
       padding = 16 + (padding & 0xf);
       memcpy(workspace, poo, padding);
       memcpy(workspace + padding, efh->encdata, *datalen - sizeof(struct ast_iax2_mini_enc_hdr));
       workspace[15] &= 0xf0;
       workspace[15] |= (padding & 0x0f);
       *datalen += padding;
       memcpy_encrypt(efh->encdata, workspace, *datalen - sizeof(struct ast_iax2_mini_enc_hdr), ecx);
       if (*datalen >= 32 + sizeof(struct ast_iax2_mini_enc_hdr))
          memcpy(poo, workspace + *datalen - 32, 32);
    }
    return 0;
 }

◆ expire_registry()

static int expire_registry ( const void * data )

static

Definition at line 8939 of file chan_iax2.c.

References __expire_registry(), and schedule_action.

Referenced by handle_cli_iax2_prune_realtime(), handle_cli_iax2_unregister(), and jb_debug_output().

 {
 #ifdef SCHED_MULTITHREADED
    if (schedule_action(__expire_registry, data))
 #endif
       __expire_registry(data);
    return 0;
 }

◆ find_cache()

static struct iax2_dpcache* find_cache	(	struct ast_channel *	chan,
		const char *	data,
		const char *	context,
		const char *	exten,
		int	priority
	)

static

Definition at line 14137 of file chan_iax2.c.

References ARRAY_LEN, ast_calloc, ast_channel_defer_dtmf(), ast_channel_undefer_dtmf(), ast_copy_string(), ast_free, ast_frfree, AST_LIST_INSERT_TAIL, AST_LIST_LOCK, AST_LIST_REMOVE_CURRENT, AST_LIST_TRAVERSE_SAFE_BEGIN, AST_LIST_TRAVERSE_SAFE_END, AST_LIST_UNLOCK, ast_log, ast_mutex_unlock, ast_read(), ast_remaining_ms(), ast_test_flag, ast_tvcmp(), ast_tvnow(), ast_waitfor_nandfds(), CACHE_FLAG_PENDING, CACHE_FLAG_TIMEOUT, cache_get_callno_locked(), iax2_dpcache::callno, errno, iax2_dpcache::expiry, iax2_dpcache::exten, iax2_dpcache::flags, iax2_dprequest(), IAX_STATE_STARTED, iaxdefaultdpcache, iaxdefaulttimeout, LOG_WARNING, NULL, iax2_dpcache::orig, iax2_dpcache::peercontext, timeout, and iax2_dpcache::waiters.

Referenced by iax2_canmatch(), iax2_exec(), iax2_exists(), and iax2_matchmore().

 {
    struct iax2_dpcache *dp = NULL;
    struct timeval now = ast_tvnow();
    int x, com[2], timeout, old = 0, outfd, doabort, callno;
    struct ast_channel *c = NULL;
    struct ast_frame *f = NULL;
 
    AST_LIST_TRAVERSE_SAFE_BEGIN(&dpcache, dp, cache_list) {
       if (ast_tvcmp(now, dp->expiry) > 0) {
          AST_LIST_REMOVE_CURRENT(cache_list);
          if ((dp->flags & CACHE_FLAG_PENDING) || dp->callno)
             ast_log(LOG_WARNING, "DP still has peer field or pending or callno (flags = %d, peer = blah, callno = %d)\n", dp->flags, dp->callno);
          else
             ast_free(dp);
          continue;
       }
       if (!strcmp(dp->peercontext, data) && !strcmp(dp->exten, exten))
          break;
    }
    AST_LIST_TRAVERSE_SAFE_END;
 
    if (!dp) {
       /* No matching entry.  Create a new one. */
       /* First, can we make a callno? */
       if ((callno = cache_get_callno_locked(data)) < 0) {
          ast_log(LOG_WARNING, "Unable to generate call for '%s'\n", data);
          return NULL;
       }
       if (!(dp = ast_calloc(1, sizeof(*dp)))) {
          ast_mutex_unlock(&iaxsl[callno]);
          return NULL;
       }
       ast_copy_string(dp->peercontext, data, sizeof(dp->peercontext));
       ast_copy_string(dp->exten, exten, sizeof(dp->exten));
       dp->expiry = ast_tvnow();
       dp->orig = dp->expiry;
       /* Expires in 30 mins by default */
       dp->expiry.tv_sec += iaxdefaultdpcache;
       dp->flags = CACHE_FLAG_PENDING;
       for (x = 0; x < ARRAY_LEN(dp->waiters); x++)
          dp->waiters[x] = -1;
       /* Insert into the lists */
       AST_LIST_INSERT_TAIL(&dpcache, dp, cache_list);
       AST_LIST_INSERT_TAIL(&iaxs[callno]->dpentries, dp, peer_list);
       /* Send the request if we're already up */
       if (ast_test_flag(&iaxs[callno]->state, IAX_STATE_STARTED))
          iax2_dprequest(dp, callno);
       ast_mutex_unlock(&iaxsl[callno]);
    }
 
    /* By here we must have a dp */
    if (dp->flags & CACHE_FLAG_PENDING) {
       struct timeval start;
       int ms;
       /* Okay, here it starts to get nasty.  We need a pipe now to wait
          for a reply to come back so long as it's pending */
       for (x = 0; x < ARRAY_LEN(dp->waiters); x++) {
          /* Find an empty slot */
          if (dp->waiters[x] < 0)
             break;
       }
       if (x >= ARRAY_LEN(dp->waiters)) {
          ast_log(LOG_WARNING, "No more waiter positions available\n");
          return NULL;
       }
       if (pipe(com)) {
          ast_log(LOG_WARNING, "Unable to create pipe for comm\n");
          return NULL;
       }
       dp->waiters[x] = com[1];
       /* Okay, now we wait */
       timeout = iaxdefaulttimeout * 1000;
       /* Temporarily unlock */
       AST_LIST_UNLOCK(&dpcache);
       /* Defer any dtmf */
       if (chan)
          old = ast_channel_defer_dtmf(chan);
       doabort = 0;
       start = ast_tvnow();
       while ((ms = ast_remaining_ms(start, timeout))) {
          c = ast_waitfor_nandfds(&chan, chan ? 1 : 0, &com[0], 1, NULL, &outfd, &ms);
          if (outfd > -1)
             break;
          if (!c)
             continue;
          if (!(f = ast_read(c))) {
             doabort = 1;
             break;
          }
          ast_frfree(f);
       }
       if (!ms) {
          ast_log(LOG_WARNING, "Timeout waiting for %s exten %s\n", data, exten);
       }
       AST_LIST_LOCK(&dpcache);
       dp->waiters[x] = -1;
       close(com[1]);
       close(com[0]);
       if (doabort) {
          /* Don't interpret anything, just abort.  Not sure what th epoint
            of undeferring dtmf on a hung up channel is but hey whatever */
          if (!old && chan)
             ast_channel_undefer_dtmf(chan);
          return NULL;
       }
       if (!(dp->flags & CACHE_FLAG_TIMEOUT)) {
          /* Now to do non-independent analysis the results of our wait */
          if (dp->flags & CACHE_FLAG_PENDING) {
             /* Still pending... It's a timeout.  Wake everybody up.  Consider it no longer
                pending.  Don't let it take as long to timeout. */
             dp->flags &= ~CACHE_FLAG_PENDING;
             dp->flags |= CACHE_FLAG_TIMEOUT;
             /* Expire after only 60 seconds now.  This is designed to help reduce backlog in heavily loaded
                systems without leaving it unavailable once the server comes back online */
             dp->expiry.tv_sec = dp->orig.tv_sec + 60;
             for (x = 0; x < ARRAY_LEN(dp->waiters); x++) {
                if (dp->waiters[x] > -1) {
                   if (write(dp->waiters[x], "asdf", 4) < 0) {
                      ast_log(LOG_WARNING, "write() failed: %s\n", strerror(errno));
                   }
                }
             }
          }
       }
       /* Our caller will obtain the rest */
       if (!old && chan)
          ast_channel_undefer_dtmf(chan);
    }
    return dp;
 }

◆ find_callno()

static int find_callno	(	unsigned short	callno,
		unsigned short	dcallno,
		struct ast_sockaddr *	addr,
		int	new,
		int	sockfd,
		int	full_frame
	)

static

Definition at line 3234 of file chan_iax2.c.

References __find_callno().

Referenced by iax2_poke_peer(), and socket_process_helper().

                                                                                                                                       {
    return __find_callno(callno, dcallno, addr, new, sockfd, 0, full_frame);
 }

◆ find_callno_locked()

static int find_callno_locked	(	unsigned short	callno,
		unsigned short	dcallno,
		struct ast_sockaddr *	addr,
		int	new,
		int	sockfd,
		int	full_frame
	)

static

Definition at line 3238 of file chan_iax2.c.

References __find_callno().

Referenced by cache_get_callno_locked(), iax2_do_register(), iax2_provision(), iax2_request(), and socket_process_meta().

                                                                                                                                              {
 
    return __find_callno(callno, dcallno, addr, new, sockfd, 1, full_frame);
 }

◆ find_idle_thread()

static struct iax2_thread* find_idle_thread ( void )

static

Definition at line 1586 of file chan_iax2.c.

References ast_atomic_fetchadd_int(), ast_calloc, ast_cond_destroy, ast_cond_init, ast_cond_wait, ast_free, AST_LIST_LOCK, AST_LIST_REMOVE_HEAD, AST_LIST_UNLOCK, ast_mutex_destroy, ast_mutex_init, ast_mutex_lock, ast_mutex_unlock, ast_pthread_create_background, iax2_thread::cond, iax2_thread::ffinfo, iax2_process_thread(), IAX_THREAD_TYPE_DYNAMIC, iax2_thread::init_cond, iax2_thread::init_lock, iax2_thread::list, iax2_thread::lock, NULL, thread, iax2_thread::threadid, iax2_thread::threadnum, and iax2_thread::type.

Referenced by __schedule_action(), and socket_read().

 {
    struct iax2_thread *thread = NULL;
 
    /* Pop the head of the idle list off */
    AST_LIST_LOCK(&idle_list);
    thread = AST_LIST_REMOVE_HEAD(&idle_list, list);
    AST_LIST_UNLOCK(&idle_list);
 
    /* If we popped a thread off the idle list, just return it */
    if (thread) {
       memset(&thread->ffinfo, 0, sizeof(thread->ffinfo));
       return thread;
    }
 
    /* Pop the head of the dynamic list off */
    AST_LIST_LOCK(&dynamic_list);
    thread = AST_LIST_REMOVE_HEAD(&dynamic_list, list);
    AST_LIST_UNLOCK(&dynamic_list);
 
    /* If we popped a thread off the dynamic list, just return it */
    if (thread) {
       memset(&thread->ffinfo, 0, sizeof(thread->ffinfo));
       return thread;
    }
 
    /* If we can't create a new dynamic thread for any reason, return no thread at all */
    if (iaxdynamicthreadcount >= iaxmaxthreadcount || !(thread = ast_calloc(1, sizeof(*thread))))
       return NULL;
 
    /* Set default values */
    ast_atomic_fetchadd_int(&iaxdynamicthreadcount, 1);
    thread->threadnum = ast_atomic_fetchadd_int(&iaxdynamicthreadnum, 1);
    thread->type = IAX_THREAD_TYPE_DYNAMIC;
 
    /* Initialize lock and condition */
    ast_mutex_init(&thread->lock);
    ast_cond_init(&thread->cond, NULL);
    ast_mutex_init(&thread->init_lock);
    ast_cond_init(&thread->init_cond, NULL);
    ast_mutex_lock(&thread->init_lock);
 
    /* Create thread and send it on it's way */
    if (ast_pthread_create_background(&thread->threadid, NULL, iax2_process_thread, thread)) {
       ast_cond_destroy(&thread->cond);
       ast_mutex_destroy(&thread->lock);
       ast_mutex_unlock(&thread->init_lock);
       ast_cond_destroy(&thread->init_cond);
       ast_mutex_destroy(&thread->init_lock);
       ast_free(thread);
       return NULL;
    }
 
    /* this thread is not processing a full frame (since it is idle),
       so ensure that the field for the full frame call number is empty */
    memset(&thread->ffinfo, 0, sizeof(thread->ffinfo));
 
    /* Wait for the thread to be ready before returning it to the caller */
    ast_cond_wait(&thread->init_cond, &thread->init_lock);
 
    /* Done with init_lock */
    ast_mutex_unlock(&thread->init_lock);
 
    return thread;
 }

◆ find_peer()

static struct iax2_peer* find_peer	(	const char *	name,
		int	realtime
	)

static

Note: This funtion calls realtime_peer -> reg_source_db -> iax2_poke_peer -> find_callno, so do not call it with a pvt lock held.

Definition at line 2009 of file chan_iax2.c.

References ao2_find, NULL, OBJ_KEY, and realtime_peer().

Referenced by ast_iax2_new(), calltoken_required(), create_addr(), function_iaxpeer(), handle_cli_iax2_prune_realtime(), handle_cli_iax2_set_debug(), handle_cli_iax2_show_peer(), handle_cli_iax2_unregister(), iax2_devicestate(), register_verify(), registry_authrequest(), requirecalltoken_mark_auto(), and update_registry().

 {
    struct iax2_peer *peer = NULL;
 
    peer = ao2_find(peers, name, OBJ_KEY);
 
    /* Now go for realtime if applicable */
    if (!peer && realtime) {
       peer = realtime_peer(name, NULL);
    }
    return peer;
 }

◆ find_tpeer()

static struct iax2_trunk_peer* find_tpeer	(	struct ast_sockaddr *	addr,
		int	fd
	)

static

Definition at line 6246 of file chan_iax2.c.

References iax2_trunk_peer::addr, ast_calloc, ast_debug, AST_LIST_INSERT_TAIL, AST_LIST_LOCK, AST_LIST_TRAVERSE, AST_LIST_UNLOCK, ast_mutex_init, ast_mutex_lock, ast_sockaddr_cmp(), ast_sockaddr_copy(), ast_sockaddr_stringify(), ast_tvnow(), iax2_trunk_peer::lastsent, iax2_trunk_peer::list, iax2_trunk_peer::lock, NULL, iax2_trunk_peer::sockfd, and iax2_trunk_peer::trunkact.

Referenced by iax2_trunk_queue(), and socket_process_meta().

 {
    struct iax2_trunk_peer *tpeer = NULL;
 
    /* Finds and locks trunk peer */
    AST_LIST_LOCK(&tpeers);
 
    AST_LIST_TRAVERSE(&tpeers, tpeer, list) {
       if (!ast_sockaddr_cmp(&tpeer->addr, addr)) {
          ast_mutex_lock(&tpeer->lock);
          break;
       }
    }
 
    if (!tpeer) {
       if ((tpeer = ast_calloc(1, sizeof(*tpeer)))) {
          ast_mutex_init(&tpeer->lock);
          tpeer->lastsent = 9999;
          ast_sockaddr_copy(&tpeer->addr, addr);
          tpeer->trunkact = ast_tvnow();
          ast_mutex_lock(&tpeer->lock);
          tpeer->sockfd = fd;
 
 #ifdef SO_NO_CHECK
          setsockopt(tpeer->sockfd, SOL_SOCKET, SO_NO_CHECK, &nochecksums, sizeof(nochecksums));
 #endif
          ast_debug(1, "Created trunk peer for '%s'\n", ast_sockaddr_stringify(&tpeer->addr));
          AST_LIST_INSERT_TAIL(&tpeers, tpeer, list);
       }
    }
 
    AST_LIST_UNLOCK(&tpeers);
 
    return tpeer;
 }

◆ find_user()

static struct iax2_user* find_user ( const char * name )

static

Definition at line 2034 of file chan_iax2.c.

References ao2_find, and OBJ_KEY.

Referenced by calltoken_required(), handle_cli_iax2_prune_realtime(), and requirecalltoken_mark_auto().

 {
    return ao2_find(users, name, OBJ_KEY);
 }

◆ firmware_show_callback()

static int firmware_show_callback	(	struct ast_iax2_firmware_header *	header,
		void *	user_data
	)

static

Definition at line 7205 of file chan_iax2.c.

References ast_cli(), ast_iax2_firmware_header::datalen, ast_iax2_firmware_header::devname, and ast_iax2_firmware_header::version.

Referenced by handle_cli_iax2_show_firmware().

 {
    int *fd = user_data;
 
    ast_cli(*fd, "%-15.15s  %-15d %-15d\n",
       header->devname,
       ntohs(header->version),
       (int) ntohl(header->datalen));
 
    return 0;
 }

◆ fix_peerts()

static unsigned int fix_peerts	(	struct timeval *	rxtrunktime,
		int	callno,
		unsigned int	ts
	)

static

Definition at line 6056 of file chan_iax2.c.

References ast_tvdiff_ms(), ast_tvnow(), ast_tvzero(), and chan_iax2_pvt::rxcore.

Referenced by socket_process_meta().

 {
    long ms; /* NOT unsigned */
    if (ast_tvzero(iaxs[callno]->rxcore)) {
       /* Initialize rxcore time if appropriate */
       iaxs[callno]->rxcore = ast_tvnow();
       /* Round to nearest 20ms so traces look pretty */
       iaxs[callno]->rxcore.tv_usec -= iaxs[callno]->rxcore.tv_usec % 20000;
    }
    /* Calculate difference between trunk and channel */
    ms = ast_tvdiff_ms(*rxtrunktime, iaxs[callno]->rxcore);
    /* Return as the sum of trunk time and the difference between trunk and real time */
    return ms + ts;
 }

◆ free_context()

static void free_context ( struct iax2_context * con )

static

Definition at line 12448 of file chan_iax2.c.

References ast_free, and iax2_context::next.

Referenced by build_user(), and user_destructor().

 {
    struct iax2_context *conl;
    while(con) {
       conl = con;
       con = con->next;
       ast_free(conl);
    }
 }

◆ free_signaling_queue_entry()

static void free_signaling_queue_entry ( struct signaling_queue_entry * s )

static

Definition at line 2148 of file chan_iax2.c.

References ast_free, ast_frame::data, ast_frame::datalen, signaling_queue_entry::f, and ast_frame::ptr.

Referenced by pvt_destructor(), queue_signalling(), and send_signaling().

 {
    if (s->f.datalen) {
       ast_free(s->f.data.ptr);
    }
    ast_free(s);
 }

◆ function_iaxpeer()

static int function_iaxpeer	(	struct ast_channel *	chan,
		const char *	cmd,
		char *	data,
		char *	buf,
		size_t	len
	)

static

Definition at line 14390 of file chan_iax2.c.

References iax2_peer::addr, ast_channel_tech(), ast_channel_tech_pvt(), ast_copy_string(), AST_FORMAT_CAP_NAMES_LEN, ast_format_get_name(), ast_sockaddr_isnull(), ast_sockaddr_stringify_addr(), ast_str_alloca, ast_str_buffer(), ast_strdupa, ast_test_flag64, iax2_peer::callno, iax2_peer::capability, iax2_peer::cid_name, iax2_peer::cid_num, iax2_peer::context, iax2_peer::expire, find_peer(), iax2_codec_pref_index(), iax2_getformatname_multiple(), IAX_DYNAMIC, iax2_peer::mailbox, peer_status(), peer_unref(), iax2_peer::prefs, and PTR_TO_CALLNO.

 {
    struct iax2_peer *peer;
    char *peername, *colname;
 
    peername = ast_strdupa(data);
 
    /* if our channel, return the IP address of the endpoint of current channel */
    if (!strcmp(peername,"CURRENTCHANNEL")) {
            unsigned short callno;
       if (!chan || ast_channel_tech(chan) != &iax2_tech) {
          return -1;
       }
       callno = PTR_TO_CALLNO(ast_channel_tech_pvt(chan));
       ast_copy_string(buf, !ast_sockaddr_isnull(&iaxs[callno]->addr) ? ast_sockaddr_stringify_addr(&iaxs[callno]->addr) : "", len);
       return 0;
    }
 
    if ((colname = strchr(peername, ',')))
       *colname++ = '\0';
    else
       colname = "ip";
 
    if (!(peer = find_peer(peername, 1)))
       return -1;
 
    if (!strcasecmp(colname, "ip")) {
       ast_copy_string(buf, ast_sockaddr_stringify_addr(&peer->addr), len);
    } else  if (!strcasecmp(colname, "status")) {
       peer_status(peer, buf, len);
    } else  if (!strcasecmp(colname, "mailbox")) {
       ast_copy_string(buf, peer->mailbox, len);
    } else  if (!strcasecmp(colname, "context")) {
       ast_copy_string(buf, peer->context, len);
    } else  if (!strcasecmp(colname, "expire")) {
       snprintf(buf, len, "%d", peer->expire);
    } else  if (!strcasecmp(colname, "dynamic")) {
       ast_copy_string(buf, (ast_test_flag64(peer, IAX_DYNAMIC) ? "yes" : "no"), len);
    } else  if (!strcasecmp(colname, "callerid_name")) {
       ast_copy_string(buf, peer->cid_name, len);
    } else  if (!strcasecmp(colname, "callerid_num")) {
       ast_copy_string(buf, peer->cid_num, len);
    } else  if (!strcasecmp(colname, "codecs")) {
       struct ast_str *codec_buf = ast_str_alloca(AST_FORMAT_CAP_NAMES_LEN);
 
       iax2_getformatname_multiple(peer->capability, &codec_buf);
       ast_copy_string(buf, ast_str_buffer(codec_buf), len);
    } else  if (!strncasecmp(colname, "codec[", 6)) {
       char *codecnum, *ptr;
       struct ast_format *tmpfmt;
 
       /* skip over "codec" to the '[' */
       codecnum = colname + 5;
       *codecnum = '\0';
       codecnum++;
       if ((ptr = strchr(codecnum, ']'))) {
          *ptr = '\0';
       }
       if((iax2_codec_pref_index(&peer->prefs, atoi(codecnum), &tmpfmt))) {
          ast_copy_string(buf, ast_format_get_name(tmpfmt), len);
       } else {
          buf[0] = '\0';
       }
    } else {
       buf[0] = '\0';
    }
 
    peer_unref(peer);
 
    return 0;
 }

◆ get_auth_methods()

static int get_auth_methods ( const char * value )

static

Definition at line 12657 of file chan_iax2.c.

References IAX_AUTH_MD5, IAX_AUTH_PLAINTEXT, IAX_AUTH_RSA, and methods.

Referenced by build_peer(), build_user(), and set_config().

 {
    int methods = 0;
    if (strstr(value, "rsa"))
       methods |= IAX_AUTH_RSA;
    if (strstr(value, "md5"))
       methods |= IAX_AUTH_MD5;
    if (strstr(value, "plaintext"))
       methods |= IAX_AUTH_PLAINTEXT;
    return methods;
 }

◆ get_encrypt_methods()

static int get_encrypt_methods ( const char * s )

static

Definition at line 1766 of file chan_iax2.c.

References ast_true(), IAX_ENCRYPT_AES128, IAX_ENCRYPT_KEYROTATE, and send_lagrq().

Referenced by build_peer(), build_user(), and set_config().

 {
    int e;
    if (!strcasecmp(s, "aes128"))
       e = IAX_ENCRYPT_AES128 | IAX_ENCRYPT_KEYROTATE;
    else if (ast_true(s))
       e = IAX_ENCRYPT_AES128 | IAX_ENCRYPT_KEYROTATE;
    else
       e = 0;
    return e;
 }

◆ get_from_jb()

static int get_from_jb ( const void * p )

static

Definition at line 4203 of file chan_iax2.c.

References __get_from_jb(), and schedule_action.

Referenced by unwrap_timestamp().

 {
 #ifdef SCHED_MULTITHREADED
    if (schedule_action(__get_from_jb, data))
 #endif
       __get_from_jb(data);
    return 0;
 }

◆ get_unused_callno()

static int get_unused_callno	(	enum callno_type	type,
		int	validated,
		callno_entry *	entry
	)

static

Definition at line 2905 of file chan_iax2.c.

References ast_assert, ast_log, ast_mutex_lock, ast_mutex_unlock, ast_random(), call_number_pool::available, CALLNO_ENTRY_SET_VALIDATED, callno_pool, callno_pool_lock, callno_pool_trunk, CALLNO_TYPE_NORMAL, CALLNO_TYPE_TRUNK, LOG_WARNING, NULL, call_number_pool::numbers, and pool.

Referenced by __find_callno(), jb_debug_output(), and make_trunk().

 {
    struct call_number_pool *pool = NULL;
    callno_entry swap;
    size_t choice;
 
    switch (type) {
    case CALLNO_TYPE_NORMAL:
       pool = &callno_pool;
       break;
    case CALLNO_TYPE_TRUNK:
       pool = &callno_pool_trunk;
       break;
    default:
       ast_assert(0);
       break;
    }
 
    /* If we fail, make sure this has a defined value */
    *entry = 0;
 
    /* We lock here primarily to ensure thread safety of the
     * total_nonval_callno_used check and increment */
    ast_mutex_lock(&callno_pool_lock);
 
    /* Bail out if we don't have any available call numbers */
    if (!pool->available) {
       ast_log(LOG_WARNING, "Out of call numbers\n");
       ast_mutex_unlock(&callno_pool_lock);
       return 1;
    }
 
    /* Only a certain number of non-validated call numbers should be allocated.
     * If there ever is an attack, this separates the calltoken validating users
     * from the non-calltoken validating users. */
    if (!validated && total_nonval_callno_used >= global_maxcallno_nonval) {
       ast_log(LOG_WARNING,
          "NON-CallToken callnumber limit is reached. Current: %d Max: %d\n",
          total_nonval_callno_used,
          global_maxcallno_nonval);
       ast_mutex_unlock(&callno_pool_lock);
       return 1;
    }
 
    /* We use a modified Fisher-Yates-Durstenfeld Shuffle to maintain a list of
     * available call numbers.  The array of call numbers begins as an ordered
     * list from 1 -> n, and we keep a running tally of how many remain unclaimed
     * - let's call that x.  When a call number is needed we pick a random index
     * into the array between 0 and x and use that as our call number.  In a
     * typical FYD shuffle, we would swap the value that we are extracting with
     * the number at x, but in our case we swap and don't touch the value at x
     * because it is effectively invisible.  We rely on the rest of the IAX2 core
     * to return the number to us at some point.  Finally, we decrement x by 1
     * which establishes our new unused range.
     *
     * When numbers are returned to the pool, we put them just past x and bump x
     * by 1 so that this number is now available for re-use. */
 
    choice = ast_random() % pool->available;
 
    *entry = pool->numbers[choice];
    swap = pool->numbers[pool->available - 1];
 
    pool->numbers[choice] = swap;
    pool->available--;
 
    if (validated) {
       CALLNO_ENTRY_SET_VALIDATED(*entry);
    } else {
       total_nonval_callno_used++;
    }
 
    ast_mutex_unlock(&callno_pool_lock);
 
    return 0;
 }

◆ handle_call_token()

static int handle_call_token	(	struct ast_iax2_full_hdr *	fh,
		struct iax_ies *	ies,
		struct ast_sockaddr *	addr,
		int	fd
	)

static

Definition at line 4932 of file chan_iax2.c.

References ast_log, ast_sha1_hash(), ast_sockaddr_stringify(), ast_str_alloca, ast_str_buffer(), ast_str_set(), iax_ie_data::buf, iax_ies::calltoken, CALLTOKEN_HASH_FORMAT, CALLTOKEN_IE_FORMAT, calltoken_required(), iax_ies::calltokendata, ast_iax2_full_hdr::csub, IAX_COMMAND_CALLTOKEN, IAX_COMMAND_REGREJ, IAX_COMMAND_REGREL, IAX_COMMAND_REGREQ, IAX_COMMAND_REJECT, iax_ie_append_str(), IAX_IE_CALLTOKEN, ast_iax2_full_hdr::iseqno, LOG_ERROR, LOG_WARNING, NULL, requirecalltoken_mark_auto(), S_OR, ast_iax2_full_hdr::scallno, send_apathetic_reply(), ast_iax2_full_hdr::ts, uncompress_subclass(), and iax_ies::username.

Referenced by socket_process_helper().

 {
 #define CALLTOKEN_HASH_FORMAT "%s%u%d"  /* address + port + ts + randomcalldata */
 #define CALLTOKEN_IE_FORMAT   "%u?%s"     /* time + ? + (40 char hash) */
    struct ast_str *buf = ast_str_alloca(256);
    time_t t = time(NULL);
    char hash[41]; /* 40 char sha1 hash */
    int subclass = uncompress_subclass(fh->csub);
 
    /* ----- Case 1 ----- */
    if (ies->calltoken && !ies->calltokendata) {  /* empty calltoken is provided, client supports calltokens */
       struct iax_ie_data ied = {
          .buf = { 0 },
          .pos = 0,
       };
 
       /* create the hash with their address data and our timestamp */
       ast_str_set(&buf, 0, CALLTOKEN_HASH_FORMAT, ast_sockaddr_stringify(addr), (unsigned int) t, randomcalltokendata);
       ast_sha1_hash(hash, ast_str_buffer(buf));
 
       ast_str_set(&buf, 0, CALLTOKEN_IE_FORMAT, (unsigned int) t, hash);
       iax_ie_append_str(&ied, IAX_IE_CALLTOKEN, ast_str_buffer(buf));
       send_apathetic_reply(1, ntohs(fh->scallno), addr, IAX_COMMAND_CALLTOKEN, ntohl(fh->ts), fh->iseqno + 1, fd, &ied);
 
       return 1;
 
    /* ----- Case 2 ----- */
    } else if (ies->calltoken && ies->calltokendata) { /* calltoken received, check to see if it is valid */
       char *rec_hash = NULL;    /* the received hash, make sure it matches with ours. */
       char *rec_ts = NULL;      /* received timestamp */
       unsigned int rec_time;  /* received time_t */
 
       /* split the timestamp from the hash data */
       rec_hash = strchr((char *) ies->calltokendata, '?');
       if (rec_hash) {
          *rec_hash++ = '\0';
          rec_ts = (char *) ies->calltokendata;
       }
 
       /* check that we have valid data before we do any comparisons */
       if (!rec_hash || !rec_ts) {
          goto reject;
       } else if (sscanf(rec_ts, "%u", &rec_time) != 1) {
          goto reject;
       }
 
       /* create a hash with their address and the _TOKEN'S_ timestamp */
       ast_str_set(&buf, 0, CALLTOKEN_HASH_FORMAT, ast_sockaddr_stringify(addr), (unsigned int) rec_time, randomcalltokendata);
       ast_sha1_hash(hash, ast_str_buffer(buf));
 
       /* compare hashes and then check timestamp delay */
       if (strcmp(hash, rec_hash)) {
          ast_log(LOG_WARNING, "Address %s failed CallToken hash inspection\n", ast_sockaddr_stringify(addr));
          goto reject; /* received hash does not match ours, reject */
       } else if ((t < rec_time) || ((t - rec_time) >= max_calltoken_delay)) {
          ast_log(LOG_WARNING, "Too much delay in IAX2 calltoken timestamp from address %s\n", ast_sockaddr_stringify(addr));
          goto reject; /* too much delay, reject */
       }
 
       /* at this point the call token is valid, returning 0
        * will allow socket_process to continue as usual */
       requirecalltoken_mark_auto(ies->username, subclass);
       return 0;
 
    /* ----- Case 3 ----- */
    } else { /* calltokens are not supported for this client, how do we respond? */
       if (calltoken_required(addr, ies->username, subclass)) {
          ast_log(LOG_ERROR, "Call rejected, CallToken Support required. If unexpected, resolve by placing address %s in the calltokenoptional list or setting user %s requirecalltoken=no\n", ast_sockaddr_stringify(addr), S_OR(ies->username, "guest"));
          goto reject;
       }
       return 0; /* calltoken is not required for this addr, so permit it. */
    }
 
 reject:
    /* received frame has failed calltoken inspection, send apathetic reject messages */
    if (subclass == IAX_COMMAND_REGREQ || subclass == IAX_COMMAND_REGREL) {
       send_apathetic_reply(1, ntohs(fh->scallno), addr, IAX_COMMAND_REGREJ, ntohl(fh->ts), fh->iseqno + 1, fd, NULL);
    } else {
       send_apathetic_reply(1, ntohs(fh->scallno), addr, IAX_COMMAND_REJECT, ntohl(fh->ts), fh->iseqno + 1, fd, NULL);
    }
 
    return 1;
 }

◆ handle_cli_iax2_provision()

static char* handle_cli_iax2_provision	(	struct ast_cli_entry *	e,
		int	cmd,
		struct ast_cli_args *	a
	)

static

Definition at line 12278 of file chan_iax2.c.

References ast_cli_args::argc, ast_cli_args::argv, ast_cli(), CLI_GENERATE, CLI_INIT, CLI_SHOWUSAGE, CLI_SUCCESS, ast_cli_entry::command, ast_cli_args::fd, iax2_provision(), iax_prov_complete_template(), ast_cli_args::line, ast_cli_args::n, NULL, ast_cli_args::pos, ast_cli_entry::usage, and ast_cli_args::word.

 {
    int force = 0;
    int res;
 
    switch (cmd) {
    case CLI_INIT:
       e->command = "iax2 provision";
       e->usage =
          "Usage: iax2 provision <host> <template> [forced]\n"
          "       Provisions the given peer or IP address using a template\n"
          "       matching either 'template' or '*' if the template is not\n"
          "       found.  If 'forced' is specified, even empty provisioning\n"
          "       fields will be provisioned as empty fields.\n";
       return NULL;
    case CLI_GENERATE:
       if (a->pos == 3)
          return iax_prov_complete_template(a->line, a->word, a->pos, a->n);
       return NULL;
    }
 
    if (a->argc < 4)
       return CLI_SHOWUSAGE;
    if (a->argc > 4) {
       if (!strcasecmp(a->argv[4], "forced"))
          force = 1;
       else
          return CLI_SHOWUSAGE;
    }
    res = iax2_provision(NULL, -1, a->argv[2], a->argv[3], force);
    if (res < 0)
       ast_cli(a->fd, "Unable to find peer/address '%s'\n", a->argv[2]);
    else if (res < 1)
       ast_cli(a->fd, "No template (including wildcard) matching '%s'\n", a->argv[3]);
    else
       ast_cli(a->fd, "Provisioning '%s' with template '%s'%s\n", a->argv[2], a->argv[3], force ? ", forced" : "");
    return CLI_SUCCESS;
 }

◆ handle_cli_iax2_prune_realtime()

static char* handle_cli_iax2_prune_realtime	(	struct ast_cli_entry *	e,
		int	cmd,
		struct ast_cli_args *	a
	)

static

Definition at line 3640 of file chan_iax2.c.

References ao2_unlink, ast_cli_args::argc, ast_cli_args::argv, ast_cli(), ast_cli_complete(), ast_set_flag64, ast_test_flag64, CLI_GENERATE, CLI_INIT, CLI_SHOWUSAGE, CLI_SUCCESS, ast_cli_entry::command, complete_iax2_peers(), expire_registry(), ast_cli_args::fd, find_peer(), find_user(), IAX_RTAUTOCLEAR, IAX_RTCACHEFRIENDS, ast_cli_args::line, ast_cli_args::n, NULL, peer_ref(), peer_unref(), ast_cli_args::pos, prune_peers(), prune_users(), ast_cli_entry::usage, user_unref(), and ast_cli_args::word.

 {
    struct iax2_peer *peer = NULL;
    struct iax2_user *user = NULL;
    static const char * const choices[] = { "all", NULL };
    char *cmplt;
 
    switch (cmd) {
    case CLI_INIT:
       e->command = "iax2 prune realtime";
       e->usage =
          "Usage: iax2 prune realtime [<peername>|all]\n"
          "       Prunes object(s) from the cache\n";
       return NULL;
    case CLI_GENERATE:
       if (a->pos == 3) {
          cmplt = ast_cli_complete(a->word, choices, a->n);
          if (!cmplt)
             cmplt = complete_iax2_peers(a->line, a->word, a->pos, a->n - sizeof(choices), IAX_RTCACHEFRIENDS);
          return cmplt;
       }
       return NULL;
    }
    if (a->argc != 4)
       return CLI_SHOWUSAGE;
    if (!strcmp(a->argv[3], "all")) {
       prune_users();
       prune_peers();
       ast_cli(a->fd, "Cache flushed successfully.\n");
       return CLI_SUCCESS;
    }
    peer = find_peer(a->argv[3], 0);
    user = find_user(a->argv[3]);
    if (peer || user) {
       if (peer) {
          if (ast_test_flag64(peer, IAX_RTCACHEFRIENDS)) {
             ast_set_flag64(peer, IAX_RTAUTOCLEAR);
             expire_registry(peer_ref(peer));
             ast_cli(a->fd, "Peer %s was removed from the cache.\n", a->argv[3]);
          } else {
             ast_cli(a->fd, "Peer %s is not eligible for this operation.\n", a->argv[3]);
          }
          peer_unref(peer);
       }
       if (user) {
          if (ast_test_flag64(user, IAX_RTCACHEFRIENDS)) {
             ast_set_flag64(user, IAX_RTAUTOCLEAR);
             ast_cli(a->fd, "User %s was removed from the cache.\n", a->argv[3]);
          } else {
             ast_cli(a->fd, "User %s is not eligible for this operation.\n", a->argv[3]);
          }
          ao2_unlink(users,user);
          user_unref(user);
       }
    } else {
       ast_cli(a->fd, "%s was not found in the cache.\n", a->argv[3]);
    }
 
    return CLI_SUCCESS;
 }

◆ handle_cli_iax2_reload()

static char* handle_cli_iax2_reload	(	struct ast_cli_entry *	e,
		int	cmd,
		struct ast_cli_args *	a
	)

static

Definition at line 14041 of file chan_iax2.c.

References CLI_GENERATE, CLI_INIT, CLI_SUCCESS, ast_cli_entry::command, NULL, reload_config(), and ast_cli_entry::usage.

 {
    switch (cmd) {
    case CLI_INIT:
       e->command = "iax2 reload";
       e->usage =
          "Usage: iax2 reload\n"
          "       Reloads IAX configuration from iax.conf\n";
       return NULL;
    case CLI_GENERATE:
       return NULL;
    }
 
    reload_config(0);
 
    return CLI_SUCCESS;
 }

◆ handle_cli_iax2_set_debug()

static char* handle_cli_iax2_set_debug	(	struct ast_cli_entry *	e,
		int	cmd,
		struct ast_cli_args *	a
	)

static

Definition at line 7584 of file chan_iax2.c.

References iax2_peer::addr, ao2_ref, ast_cli_args::argc, ast_cli_entry::args, ast_cli_args::argv, ast_cli(), ast_sockaddr_copy(), ast_sockaddr_stringify_port(), CLI_FAILURE, CLI_GENERATE, CLI_INIT, CLI_SHOWUSAGE, CLI_SUCCESS, ast_cli_entry::command, complete_iax2_peers(), debugaddr, ast_cli_args::fd, find_peer(), iaxdebug, ast_cli_args::line, ast_cli_args::n, NULL, ast_cli_args::pos, ast_cli_entry::usage, and ast_cli_args::word.

 {
    switch (cmd) {
    case CLI_INIT:
       e->command = "iax2 set debug {on|off|peer}";
       e->usage =
          "Usage: iax2 set debug {on|off|peer peername}\n"
          "       Enables/Disables dumping of IAX packets for debugging purposes.\n";
       return NULL;
    case CLI_GENERATE:
       if (a->pos == 4 && !strcasecmp(a->argv[3], "peer"))
          return complete_iax2_peers(a->line, a->word, a->pos, a->n, 0);
       return NULL;
    }
 
    if (a->argc < e->args  || a->argc > e->args + 1)
       return CLI_SHOWUSAGE;
 
    if (!strcasecmp(a->argv[3], "peer")) {
       struct iax2_peer *peer;
 
       if (a->argc != e->args + 1)
          return CLI_SHOWUSAGE;
 
       peer = find_peer(a->argv[4], 1);
 
       if (!peer) {
          ast_cli(a->fd, "IAX2 peer '%s' does not exist\n", a->argv[e->args-1]);
          return CLI_FAILURE;
       }
 
       ast_sockaddr_copy(&debugaddr, &peer->addr);
 
       ast_cli(a->fd, "IAX2 Debugging Enabled for IP: %s\n", ast_sockaddr_stringify_port(&debugaddr));
 
       ao2_ref(peer, -1);
    } else if (!strncasecmp(a->argv[3], "on", 2)) {
       iaxdebug = 1;
       ast_cli(a->fd, "IAX2 Debugging Enabled\n");
    } else {
       iaxdebug = 0;
       memset(&debugaddr, 0, sizeof(debugaddr));
       ast_cli(a->fd, "IAX2 Debugging Disabled\n");
    }
    return CLI_SUCCESS;
 }

◆ handle_cli_iax2_set_debug_jb()

static char* handle_cli_iax2_set_debug_jb	(	struct ast_cli_entry *	e,
		int	cmd,
		struct ast_cli_args *	a
	)

static

Definition at line 7657 of file chan_iax2.c.

References ast_cli_args::argc, ast_cli_entry::args, ast_cli_args::argv, ast_cli(), CLI_GENERATE, CLI_INIT, CLI_SHOWUSAGE, CLI_SUCCESS, ast_cli_entry::command, ast_cli_args::fd, jb_debug_output(), jb_error_output(), jb_setoutput(), jb_warning_output(), NULL, and ast_cli_entry::usage.

 {
    switch (cmd) {
    case CLI_INIT:
       e->command = "iax2 set debug jb {on|off}";
       e->usage =
          "Usage: iax2 set debug jb {on|off}\n"
          "       Enables/Disables jitterbuffer debugging information\n";
       return NULL;
    case CLI_GENERATE:
       return NULL;
    }
 
    if (a->argc != e->args)
       return CLI_SHOWUSAGE;
 
    if (!strncasecmp(a->argv[e->args -1], "on", 2)) {
       jb_setoutput(jb_error_output, jb_warning_output, jb_debug_output);
       ast_cli(a->fd, "IAX2 Jitterbuffer Debugging Enabled\n");
    } else {
       jb_setoutput(jb_error_output, jb_warning_output, NULL);
       ast_cli(a->fd, "IAX2 Jitterbuffer Debugging Disabled\n");
    }
    return CLI_SUCCESS;
 }

◆ handle_cli_iax2_set_debug_trunk()

static char* handle_cli_iax2_set_debug_trunk	(	struct ast_cli_entry *	e,
		int	cmd,
		struct ast_cli_args *	a
	)

static

Definition at line 7631 of file chan_iax2.c.

References ast_cli_args::argc, ast_cli_entry::args, ast_cli_args::argv, ast_cli(), CLI_GENERATE, CLI_INIT, CLI_SHOWUSAGE, CLI_SUCCESS, ast_cli_entry::command, ast_cli_args::fd, iaxtrunkdebug, NULL, and ast_cli_entry::usage.

 {
    switch (cmd) {
    case CLI_INIT:
       e->command = "iax2 set debug trunk {on|off}";
       e->usage =
          "Usage: iax2 set debug trunk {on|off}\n"
          "       Enables/Disables debugging of IAX trunking\n";
       return NULL;
    case CLI_GENERATE:
       return NULL;
    }
 
    if (a->argc != e->args)
       return CLI_SHOWUSAGE;
 
    if (!strncasecmp(a->argv[e->args - 1], "on", 2)) {
       iaxtrunkdebug = 1;
       ast_cli(a->fd, "IAX2 Trunk Debugging Enabled\n");
    } else {
       iaxtrunkdebug = 0;
       ast_cli(a->fd, "IAX2 Trunk Debugging Disabled\n");
    }
    return CLI_SUCCESS;
 }

◆ handle_cli_iax2_set_mtu()

static char* handle_cli_iax2_set_mtu	(	struct ast_cli_entry *	e,
		int	cmd,
		struct ast_cli_args *	a
	)

static

Set trunk MTU from CLI.

Definition at line 3960 of file chan_iax2.c.

References ast_cli_args::argc, ast_cli_args::argv, ast_cli(), CLI_GENERATE, CLI_INIT, CLI_SHOWUSAGE, CLI_SUCCESS, ast_cli_entry::command, ast_cli_args::fd, global_max_trunk_mtu, MAX_TRUNK_MTU, NULL, and ast_cli_entry::usage.

 {
    int mtuv;
 
    switch (cmd) {
    case CLI_INIT:
       e->command = "iax2 set mtu";
       e->usage =
          "Usage: iax2 set mtu <value>\n"
          "       Set the system-wide IAX IP mtu to <value> bytes net or\n"
          "       zero to disable. Disabling means that the operating system\n"
          "       must handle fragmentation of UDP packets when the IAX2 trunk\n"
          "       packet exceeds the UDP payload size. This is substantially\n"
          "       below the IP mtu. Try 1240 on ethernets. Must be 172 or\n"
          "       greater for G.711 samples.\n";
       return NULL;
    case CLI_GENERATE:
       return NULL;
    }
 
    if (a->argc != 4)
       return CLI_SHOWUSAGE;
    if (strncasecmp(a->argv[3], "default", strlen(a->argv[3])) == 0)
       mtuv = MAX_TRUNK_MTU;
    else
       mtuv = atoi(a->argv[3]);
 
    if (mtuv == 0) {
       ast_cli(a->fd, "Trunk MTU control disabled (mtu was %d)\n", global_max_trunk_mtu);
       global_max_trunk_mtu = 0;
       return CLI_SUCCESS;
    }
    if (mtuv < 172 || mtuv > 4000) {
       ast_cli(a->fd, "Trunk MTU must be between 172 and 4000\n");
       return CLI_SHOWUSAGE;
    }
    ast_cli(a->fd, "Trunk MTU changed from %d to %d\n", global_max_trunk_mtu, mtuv);
    global_max_trunk_mtu = mtuv;
    return CLI_SUCCESS;
 }

◆ handle_cli_iax2_show_cache()

static char* handle_cli_iax2_show_cache	(	struct ast_cli_entry *	e,
		int	cmd,
		struct ast_cli_args *	a
	)

static

Definition at line 4001 of file chan_iax2.c.

References ARRAY_LEN, ast_cli(), ast_copy_string(), AST_LIST_LOCK, AST_LIST_TRAVERSE, AST_LIST_UNLOCK, ast_strlen_zero, ast_tvnow(), CACHE_FLAG_CANEXIST, CACHE_FLAG_EXISTS, CACHE_FLAG_MATCHMORE, CACHE_FLAG_NONEXISTENT, CACHE_FLAG_PENDING, CACHE_FLAG_TIMEOUT, CACHE_FLAG_TRANSMITTED, CACHE_FLAG_UNKNOWN, calc_rxstamp(), CLI_GENERATE, CLI_INIT, CLI_SUCCESS, ast_cli_entry::command, iax2_dpcache::expiry, iax2_dpcache::exten, ast_cli_args::fd, iax2_dpcache::flags, NULL, iax2_dpcache::peercontext, tmp(), ast_cli_entry::usage, and iax2_dpcache::waiters.

 {
    struct iax2_dpcache *dp = NULL;
    char tmp[1024], *pc = NULL;
    int s, x, y;
    struct timeval now = ast_tvnow();
 
    switch (cmd) {
    case CLI_INIT:
       e->command = "iax2 show cache";
       e->usage =
          "Usage: iax2 show cache\n"
          "       Display currently cached IAX Dialplan results.\n";
       return NULL;
    case CLI_GENERATE:
       return NULL;
    }
 
    AST_LIST_LOCK(&dpcache);
 
    ast_cli(a->fd, "%-20.20s %-12.12s %-9.9s %-8.8s %s\n", "Peer/Context", "Exten", "Exp.", "Wait.", "Flags");
 
    AST_LIST_TRAVERSE(&dpcache, dp, cache_list) {
       s = dp->expiry.tv_sec - now.tv_sec;
       tmp[0] = '\0';
       if (dp->flags & CACHE_FLAG_EXISTS)
          strncat(tmp, "EXISTS|", sizeof(tmp) - strlen(tmp) - 1);
       if (dp->flags & CACHE_FLAG_NONEXISTENT)
          strncat(tmp, "NONEXISTENT|", sizeof(tmp) - strlen(tmp) - 1);
       if (dp->flags & CACHE_FLAG_CANEXIST)
          strncat(tmp, "CANEXIST|", sizeof(tmp) - strlen(tmp) - 1);
       if (dp->flags & CACHE_FLAG_PENDING)
          strncat(tmp, "PENDING|", sizeof(tmp) - strlen(tmp) - 1);
       if (dp->flags & CACHE_FLAG_TIMEOUT)
          strncat(tmp, "TIMEOUT|", sizeof(tmp) - strlen(tmp) - 1);
       if (dp->flags & CACHE_FLAG_TRANSMITTED)
          strncat(tmp, "TRANSMITTED|", sizeof(tmp) - strlen(tmp) - 1);
       if (dp->flags & CACHE_FLAG_MATCHMORE)
          strncat(tmp, "MATCHMORE|", sizeof(tmp) - strlen(tmp) - 1);
       if (dp->flags & CACHE_FLAG_UNKNOWN)
          strncat(tmp, "UNKNOWN|", sizeof(tmp) - strlen(tmp) - 1);
       /* Trim trailing pipe */
       if (!ast_strlen_zero(tmp)) {
          tmp[strlen(tmp) - 1] = '\0';
       } else {
          ast_copy_string(tmp, "(none)", sizeof(tmp));
       }
       y = 0;
       pc = strchr(dp->peercontext, '@');
       if (!pc) {
          pc = dp->peercontext;
       } else {
          pc++;
       }
       for (x = 0; x < ARRAY_LEN(dp->waiters); x++) {
          if (dp->waiters[x] > -1)
             y++;
       }
       if (s > 0) {
          ast_cli(a->fd, "%-20.20s %-12.12s %-9d %-8d %s\n", pc, dp->exten, s, y, tmp);
       } else {
          ast_cli(a->fd, "%-20.20s %-12.12s %-9.9s %-8d %s\n", pc, dp->exten, "(expired)", y, tmp);
       }
    }
 
    AST_LIST_UNLOCK(&dpcache);
 
    return CLI_SUCCESS;
 }

◆ handle_cli_iax2_show_callno_limits()

static char* handle_cli_iax2_show_callno_limits	(	struct ast_cli_entry *	e,
		int	cmd,
		struct ast_cli_args *	a
	)

static

Definition at line 2836 of file chan_iax2.c.

References peercnt::addr, ao2_iterator_destroy(), ao2_iterator_init(), ao2_iterator_next, ao2_ref, ast_cli_args::argc, ast_cli_args::argv, ast_cli(), ast_sockaddr_copy(), ast_sockaddr_stringify(), call_number_pool::available, callno_pool, callno_pool_trunk, CLI_GENERATE, CLI_HANDLER, CLI_INIT, CLI_SHOWUSAGE, CLI_SUCCESS, ast_cli_entry::command, peercnt::cur, ast_cli_args::fd, peercnt::limit, NULL, and ast_cli_entry::usage.

 {
    struct ao2_iterator i;
    struct peercnt *peercnt;
    struct ast_sockaddr addr;
    int found = 0;
 
    switch (cmd) {
    case CLI_INIT:
       e->command = "iax2 show callnumber usage";
       e->usage =
          "Usage: iax2 show callnumber usage [IP address]\n"
          "       Shows current IP addresses which are consuming iax2 call numbers\n";
       return NULL;
    case CLI_GENERATE:
       return NULL;
    case CLI_HANDLER:
       if (a->argc < 4 || a->argc > 5)
          return CLI_SHOWUSAGE;
 
       if (a->argc == 4) {
          ast_cli(a->fd, "%-45s %-12s %-12s\n", "Address", "Callno Usage", "Callno Limit");
       }
 
       i = ao2_iterator_init(peercnts, 0);
       while ((peercnt = ao2_iterator_next(&i))) {
          ast_sockaddr_copy(&addr, &peercnt->addr);
 
          if (a->argc == 5) {
             if (!strcasecmp(a->argv[4], ast_sockaddr_stringify(&addr))) {
                ast_cli(a->fd, "%-45s %-12s %-12s\n", "Address", "Callno Usage", "Callno Limit");
                ast_cli(a->fd, "%-45s %-12d %-12d\n", ast_sockaddr_stringify(&addr), peercnt->cur, peercnt->limit);
                ao2_ref(peercnt, -1);
                found = 1;
                break;
             }
          } else {
             ast_cli(a->fd, "%-45s %-12d %-12d\n", ast_sockaddr_stringify(&addr), peercnt->cur, peercnt->limit);
          }
          ao2_ref(peercnt, -1);
       }
       ao2_iterator_destroy(&i);
 
       if (a->argc == 4) {
          size_t pool_avail = callno_pool.available;
          size_t trunk_pool_avail = callno_pool_trunk.available;
 
          ast_cli(a->fd, "\nNon-CallToken Validation Callno Limit: %d\n"
                           "Non-CallToken Validated Callno Used:   %d\n",
             global_maxcallno_nonval,
             total_nonval_callno_used);
 
          ast_cli(a->fd,   "Total Available Callno:                %zu\n"
                           "Regular Callno Available:              %zu\n"
                           "Trunk Callno Available:                %zu\n",
             pool_avail + trunk_pool_avail,
             pool_avail,
             trunk_pool_avail);
       } else if (a->argc == 5 && !found) {
          ast_cli(a->fd, "No call number table entries for %s found\n", a->argv[4] );
       }
 
 
       return CLI_SUCCESS;
    default:
       return NULL;
    }
 }

◆ handle_cli_iax2_show_channels()

static char* handle_cli_iax2_show_channels	(	struct ast_cli_entry *	e,
		int	cmd,
		struct ast_cli_args *	a
	)

static

Definition at line 7411 of file chan_iax2.c.

References ast_cli_args::argc, ARRAY_LEN, ast_channel_name(), ast_cli(), ast_mutex_lock, ast_mutex_unlock, ast_sockaddr_stringify_addr(), ast_test_flag64, CLI_GENERATE, CLI_INIT, CLI_SHOWUSAGE, CLI_SUCCESS, ast_cli_entry::command, jb_info::current, iax_rr::delay, ast_cli_args::fd, FORMAT, FORMAT2, iax2_getformatname(), iax_frame_subclass2str(), IAX_USEJITTERBUF, jb_getinfo(), jb_info::jitter, MARK_IAX_SUBCLASS_TX, jb_info::min, NULL, chan_iax2_pvt::owner, chan_iax2_pvt::remote_rr, S_OR, ast_cli_entry::usage, and iax2_registry::username.

 {
 #define FORMAT2 "%-20.20s  %-40.40s  %-10.10s  %-11.11s  %-11.11s  %-7.7s  %-6.6s  %-6.6s  %s  %s  %9s\n"
 #define FORMAT  "%-20.20s  %-40.40s  %-10.10s  %5.5d/%5.5d  %5.5d/%5.5d  %-5.5dms  %-4.4dms  %-4.4dms  %-6.6s  %s%s  %3s%s\n"
 #define FORMATB "%-20.20s  %-40.40s  %-10.10s  %5.5d/%5.5d  %5.5d/%5.5d  [Native Bridged to ID=%5.5d]\n"
    int x;
    int numchans = 0;
    char first_message[10] = { 0, };
    char last_message[10] = { 0, };
 
    switch (cmd) {
    case CLI_INIT:
       e->command = "iax2 show channels";
       e->usage =
          "Usage: iax2 show channels\n"
          "       Lists all currently active IAX channels.\n";
       return NULL;
    case CLI_GENERATE:
       return NULL;
    }
 
    if (a->argc != 3)
       return CLI_SHOWUSAGE;
    ast_cli(a->fd, FORMAT2, "Channel", "Peer", "Username", "ID (Lo/Rem)", "Seq (Tx/Rx)", "Lag", "Jitter", "JitBuf", "Format", "FirstMsg", "LastMsg");
    for (x = 0; x < ARRAY_LEN(iaxs); x++) {
       ast_mutex_lock(&iaxsl[x]);
       if (iaxs[x]) {
          int lag, jitter, localdelay;
          jb_info jbinfo;
          if (ast_test_flag64(iaxs[x], IAX_USEJITTERBUF)) {
             jb_getinfo(iaxs[x]->jb, &jbinfo);
             jitter = jbinfo.jitter;
             localdelay = jbinfo.current - jbinfo.min;
          } else {
             jitter = -1;
             localdelay = 0;
          }
 
          iax_frame_subclass2str(iaxs[x]->first_iax_message & ~MARK_IAX_SUBCLASS_TX, first_message, sizeof(first_message));
          iax_frame_subclass2str(iaxs[x]->last_iax_message & ~MARK_IAX_SUBCLASS_TX, last_message, sizeof(last_message));
          lag = iaxs[x]->remote_rr.delay;
          ast_cli(a->fd, FORMAT,
             iaxs[x]->owner ? ast_channel_name(iaxs[x]->owner) : "(None)",
             ast_sockaddr_stringify_addr(&iaxs[x]->addr),
             S_OR(iaxs[x]->username, "(None)"),
             iaxs[x]->callno, iaxs[x]->peercallno,
             iaxs[x]->oseqno, iaxs[x]->iseqno,
             lag,
             jitter,
             localdelay,
             iax2_getformatname(iaxs[x]->voiceformat),
             (iaxs[x]->first_iax_message & MARK_IAX_SUBCLASS_TX) ? "Tx:" : "Rx:",
             first_message,
             (iaxs[x]->last_iax_message & MARK_IAX_SUBCLASS_TX) ? "Tx:" : "Rx:",
             last_message);
          numchans++;
       }
       ast_mutex_unlock(&iaxsl[x]);
    }
    ast_cli(a->fd, "%d active IAX channel%s\n", numchans, (numchans != 1) ? "s" : "");
    return CLI_SUCCESS;
 #undef FORMAT
 #undef FORMAT2
 #undef FORMATB
 }

◆ handle_cli_iax2_show_firmware()

static char* handle_cli_iax2_show_firmware	(	struct ast_cli_entry *	e,
		int	cmd,
		struct ast_cli_args *	a
	)

static

Definition at line 7218 of file chan_iax2.c.

References ast_cli_args::argc, ast_cli_args::argv, ast_cli(), CLI_GENERATE, CLI_INIT, CLI_SHOWUSAGE, CLI_SUCCESS, ast_cli_entry::command, ast_cli_args::fd, firmware_show_callback(), iax_firmware_traverse(), NULL, and ast_cli_entry::usage.

 {
    switch (cmd) {
    case CLI_INIT:
       e->command = "iax2 show firmware";
       e->usage =
          "Usage: iax2 show firmware\n"
          "       Lists all known IAX firmware images.\n";
       return NULL;
    case CLI_GENERATE:
       return NULL;
    }
 
    if (a->argc != 3 && a->argc != 4)
       return CLI_SHOWUSAGE;
 
    ast_cli(a->fd, "%-15.15s  %-15.15s %-15.15s\n", "Device", "Version", "Size");
 
    iax_firmware_traverse(
       a->argc == 3 ? NULL : a->argv[3],
       firmware_show_callback,
       (void *) &a->fd);
 
    return CLI_SUCCESS;
 }

◆ handle_cli_iax2_show_netstats()

static char* handle_cli_iax2_show_netstats	(	struct ast_cli_entry *	e,
		int	cmd,
		struct ast_cli_args *	a
	)

static

Definition at line 7561 of file chan_iax2.c.

References ast_cli_args::argc, ast_cli(), ast_cli_netstats(), CLI_GENERATE, CLI_INIT, CLI_SHOWUSAGE, CLI_SUCCESS, ast_cli_entry::command, ast_cli_args::fd, NULL, and ast_cli_entry::usage.

 {
    int numchans = 0;
 
    switch (cmd) {
    case CLI_INIT:
       e->command = "iax2 show netstats";
       e->usage =
          "Usage: iax2 show netstats\n"
          "       Lists network status for all currently active IAX channels.\n";
       return NULL;
    case CLI_GENERATE:
       return NULL;
    }
    if (a->argc != 3)
       return CLI_SHOWUSAGE;
    ast_cli(a->fd, "                           -------- LOCAL ---------------------  -------- REMOTE --------------------\n");
    ast_cli(a->fd, "Channel               RTT  Jit  Del  Lost   %%  Drop  OOO  Kpkts  Jit  Del  Lost   %%  Drop  OOO  Kpkts FirstMsg    LastMsg\n");
    numchans = ast_cli_netstats(NULL, a->fd, 1);
    ast_cli(a->fd, "%d active IAX channel%s\n", numchans, (numchans != 1) ? "s" : "");
    return CLI_SUCCESS;
 }

◆ handle_cli_iax2_show_peer()

static char* handle_cli_iax2_show_peer	(	struct ast_cli_entry *	e,
		int	cmd,
		struct ast_cli_args *	a
	)

static

Show one peer in detail.

Definition at line 3815 of file chan_iax2.c.

References iax2_peer::acl, iax2_peer::addr, ast_cli_args::argc, ast_cli_args::argv, ast_acl_list_is_empty(), ast_callerid_merge(), ast_cli(), AST_FORMAT_CAP_NAMES_LEN, ast_sockaddr_stringify_addr(), ast_sockaddr_stringify_port(), ast_str_alloca, ast_str_buffer(), ast_strdupa, ast_strlen_zero, ast_test_flag64, CALLTOKEN_AUTO, iax2_peer::calltoken_required, CALLTOKEN_YES, iax2_peer::capability, iax2_peer::cid_name, iax2_peer::cid_num, CLI_GENERATE, CLI_INIT, CLI_SHOWUSAGE, CLI_SUCCESS, ast_cli_entry::command, complete_iax2_peers(), iax2_peer::context, iax2_peer::defaddr, iax2_peer::description, iax2_peer::encmethods, encmethods_to_str(), iax2_peer::expire, ast_cli_args::fd, find_peer(), iax2_codec_pref_string(), iax2_getformatname_multiple(), IAX_DYNAMIC, IAX_TRUNK, ast_cli_args::line, iax2_peer::mailbox, iax2_peer::maxcallno, ast_cli_args::n, iax2_peer::name, NULL, iax2_peer::parkinglot, peer_status(), peer_unref(), iax2_peer::pokefreqnotok, iax2_peer::pokefreqok, ast_cli_args::pos, iax2_peer::prefs, iax2_peer::secret, iax2_peer::smoothing, status, ast_cli_entry::usage, iax2_peer::username, and ast_cli_args::word.

 {
    char status[64];
    char cbuf[256];
    struct iax2_peer *peer;
    struct ast_str *codec_buf = ast_str_alloca(AST_FORMAT_CAP_NAMES_LEN);
    struct ast_str *encmethods = ast_str_alloca(256);
    int load_realtime = 0;
 
    switch (cmd) {
    case CLI_INIT:
       e->command = "iax2 show peer";
       e->usage =
          "Usage: iax2 show peer <name>\n"
          "       Display details on specific IAX peer\n";
       return NULL;
    case CLI_GENERATE:
       if (a->pos == 3)
          return complete_iax2_peers(a->line, a->word, a->pos, a->n, 0);
       return NULL;
    }
 
    if (a->argc < 4)
       return CLI_SHOWUSAGE;
 
    load_realtime = (a->argc == 5 && !strcmp(a->argv[4], "load")) ? 1 : 0;
 
    peer = find_peer(a->argv[3], load_realtime);
    if (peer) {
       char *str_addr, *str_defaddr;
       char *str_port, *str_defport;
 
       str_addr = ast_strdupa(ast_sockaddr_stringify_addr(&peer->addr));
       str_port = ast_strdupa(ast_sockaddr_stringify_port(&peer->addr));
       str_defaddr = ast_strdupa(ast_sockaddr_stringify_addr(&peer->defaddr));
       str_defport = ast_strdupa(ast_sockaddr_stringify_port(&peer->defaddr));
 
       encmethods_to_str(peer->encmethods, &encmethods);
       ast_cli(a->fd, "\n\n");
       ast_cli(a->fd, "  * Name       : %s\n", peer->name);
       ast_cli(a->fd, "  Description  : %s\n", peer->description);
       ast_cli(a->fd, "  Secret       : %s\n", ast_strlen_zero(peer->secret) ? "<Not set>" : "<Set>");
       ast_cli(a->fd, "  Context      : %s\n", peer->context);
       ast_cli(a->fd, "  Parking lot  : %s\n", peer->parkinglot);
       ast_cli(a->fd, "  Mailbox      : %s\n", peer->mailbox);
       ast_cli(a->fd, "  Dynamic      : %s\n", ast_test_flag64(peer, IAX_DYNAMIC) ? "Yes" : "No");
       ast_cli(a->fd, "  Callnum limit: %d\n", peer->maxcallno);
       ast_cli(a->fd, "  Calltoken req: %s\n", (peer->calltoken_required == CALLTOKEN_YES) ? "Yes" : ((peer->calltoken_required == CALLTOKEN_AUTO) ? "Auto" : "No"));
       ast_cli(a->fd, "  Trunk        : %s\n", ast_test_flag64(peer, IAX_TRUNK) ? "Yes" : "No");
       ast_cli(a->fd, "  Encryption   : %s\n", peer->encmethods ? ast_str_buffer(encmethods) : "No");
       ast_cli(a->fd, "  Callerid     : %s\n", ast_callerid_merge(cbuf, sizeof(cbuf), peer->cid_name, peer->cid_num, "<unspecified>"));
       ast_cli(a->fd, "  Expire       : %d\n", peer->expire);
       ast_cli(a->fd, "  ACL          : %s\n", (ast_acl_list_is_empty(peer->acl) ? "No" : "Yes"));
       ast_cli(a->fd, "  Addr->IP     : %s Port %s\n",  str_addr ? str_addr : "(Unspecified)", str_port);
       ast_cli(a->fd, "  Defaddr->IP  : %s Port %s\n", str_defaddr, str_defport);
       ast_cli(a->fd, "  Username     : %s\n", peer->username);
       ast_cli(a->fd, "  Codecs       : %s\n", iax2_getformatname_multiple(peer->capability, &codec_buf));
 
       if (iax2_codec_pref_string(&peer->prefs, cbuf, sizeof(cbuf)) < 0) {
          strcpy(cbuf, "Error"); /* Safe */
       }
       ast_cli(a->fd, "  Codec Order  : %s\n", cbuf);
 
       peer_status(peer, status, sizeof(status));
       ast_cli(a->fd, "  Status       : %s\n", status);
       ast_cli(a->fd, "  Qualify      : every %dms when OK, every %dms when UNREACHABLE (sample smoothing %s)\n", peer->pokefreqok, peer->pokefreqnotok, peer->smoothing ? "On" : "Off");
       ast_cli(a->fd, "\n");
       peer_unref(peer);
    } else {
       ast_cli(a->fd, "Peer %s not found.\n", a->argv[3]);
       ast_cli(a->fd, "\n");
    }
 
    return CLI_SUCCESS;
 }

◆ handle_cli_iax2_show_peers()

static char* handle_cli_iax2_show_peers	(	struct ast_cli_entry *	e,
		int	cmd,
		struct ast_cli_args *	a
	)

static

Definition at line 7173 of file chan_iax2.c.

References __iax2_show_peers(), ast_cli_args::argc, ast_cli_args::argv, CLI_FAILURE, CLI_GENERATE, CLI_INIT, CLI_SHOWUSAGE, CLI_SUCCESS, ast_cli_entry::command, ast_cli_args::fd, NULL, RESULT_FAILURE, RESULT_SHOWUSAGE, and ast_cli_entry::usage.

 {
    switch (cmd) {
    case CLI_INIT:
       e->command = "iax2 show peers";
       e->usage =
          "Usage: iax2 show peers [registered] [like <pattern>]\n"
          "       Lists all known IAX2 peers.\n"
          "       Optional 'registered' argument lists only peers with known addresses.\n"
          "       Optional regular expression pattern is used to filter the peer list.\n";
       return NULL;
    case CLI_GENERATE:
       return NULL;
    }
 
    switch (__iax2_show_peers(a->fd, NULL, NULL, a->argc, a->argv)) {
    case RESULT_SHOWUSAGE:
       return CLI_SHOWUSAGE;
    case RESULT_FAILURE:
       return CLI_FAILURE;
    default:
       return CLI_SUCCESS;
    }
 }

◆ handle_cli_iax2_show_registry()

static char* handle_cli_iax2_show_registry	(	struct ast_cli_entry *	e,
		int	cmd,
		struct ast_cli_args *	a
	)

static

Definition at line 7328 of file chan_iax2.c.

References iax2_registry::addr, ast_cli_args::argc, ast_cli(), AST_LIST_LOCK, AST_LIST_TRAVERSE, AST_LIST_UNLOCK, ast_sockaddr_isnull(), ast_sockaddr_stringify(), CLI_GENERATE, CLI_INIT, CLI_SHOWUSAGE, CLI_SUCCESS, ast_cli_entry::command, iax2_registry::dnsmgr, ast_cli_args::fd, FORMAT, FORMAT2, host, NULL, iax2_registry::refresh, iax2_registry::regstate, regstate2str(), ast_cli_entry::usage, and iax2_registry::username.

 {
 #define FORMAT2 "%-45.45s  %-6.6s  %-10.10s  %-45.45s %8.8s  %s\n"
 #define FORMAT  "%-45.45s  %-6.6s  %-10.10s  %-45.45s %8d  %s\n"
 
    struct iax2_registry *reg = NULL;
    char host[80];
    char perceived[80];
    int counter = 0;
 
    switch (cmd) {
    case CLI_INIT:
       e->command = "iax2 show registry";
       e->usage =
          "Usage: iax2 show registry\n"
          "       Lists all registration requests and status.\n";
       return NULL;
    case CLI_GENERATE:
       return NULL;
    }
    if (a->argc != 3)
       return CLI_SHOWUSAGE;
    ast_cli(a->fd, FORMAT2, "Host", "dnsmgr", "Username", "Perceived", "Refresh", "State");
    AST_LIST_LOCK(&registrations);
    AST_LIST_TRAVERSE(&registrations, reg, entry) {
       snprintf(host, sizeof(host), "%s", ast_sockaddr_stringify(&reg->addr));
 
       snprintf(perceived, sizeof(perceived), "%s", ast_sockaddr_isnull(&reg->addr) ? "<Unregistered>" : ast_sockaddr_stringify(&reg->addr));
 
       ast_cli(a->fd, FORMAT, host,
             (reg->dnsmgr) ? "Y" : "N",
             reg->username, perceived, reg->refresh, regstate2str(reg->regstate));
       counter++;
    }
    AST_LIST_UNLOCK(&registrations);
    ast_cli(a->fd, "%d IAX2 registrations.\n", counter);
    return CLI_SUCCESS;
 #undef FORMAT
 #undef FORMAT2
 }

◆ handle_cli_iax2_show_stats()

static char* handle_cli_iax2_show_stats	(	struct ast_cli_entry *	e,
		int	cmd,
		struct ast_cli_args *	a
	)

static

Definition at line 3914 of file chan_iax2.c.

References ast_cli_args::argc, ARRAY_LEN, ast_cli(), AST_LIST_TRAVERSE, ast_mutex_lock, ast_mutex_unlock, CLI_GENERATE, CLI_INIT, CLI_SHOWUSAGE, CLI_SUCCESS, ast_cli_entry::command, ast_cli_args::fd, iax_frame::final, frame_queue, global_max_trunk_mtu, iax_get_frames(), iax_get_iframes(), iax_get_oframes(), iax_frame::list, NULL, iax_frame::retries, trunk_maxmtu, trunk_nmaxmtu, trunk_timed, trunk_untimed, and ast_cli_entry::usage.

 {
    struct iax_frame *cur;
    int cnt = 0, dead = 0, final = 0, i = 0;
 
    switch (cmd) {
    case CLI_INIT:
       e->command = "iax2 show stats";
       e->usage =
          "Usage: iax2 show stats\n"
          "       Display statistics on IAX channel driver.\n";
       return NULL;
    case CLI_GENERATE:
       return NULL;
    }
 
    if (a->argc != 3)
       return CLI_SHOWUSAGE;
 
    for (i = 0; i < ARRAY_LEN(frame_queue); i++) {
       ast_mutex_lock(&iaxsl[i]);
       AST_LIST_TRAVERSE(&frame_queue[i], cur, list) {
          if (cur->retries < 0)
             dead++;
          if (cur->final)
             final++;
          cnt++;
       }
       ast_mutex_unlock(&iaxsl[i]);
    }
 
    ast_cli(a->fd, "    IAX Statistics\n");
    ast_cli(a->fd, "---------------------\n");
    ast_cli(a->fd, "Outstanding frames: %d (%d ingress, %d egress)\n", iax_get_frames(), iax_get_iframes(), iax_get_oframes());
    ast_cli(a->fd, "%d timed and %d untimed transmits; MTU %d/%d/%d\n", trunk_timed, trunk_untimed,
       trunk_maxmtu, trunk_nmaxmtu, global_max_trunk_mtu);
    ast_cli(a->fd, "Packets in transmit queue: %d dead, %d final, %d total\n\n", dead, final, cnt);
 
    trunk_timed = trunk_untimed = 0;
    if (trunk_maxmtu > trunk_nmaxmtu)
       trunk_nmaxmtu = trunk_maxmtu;
 
    return CLI_SUCCESS;
 }

◆ handle_cli_iax2_show_threads()

static char* handle_cli_iax2_show_threads	(	struct ast_cli_entry *	e,
		int	cmd,
		struct ast_cli_args *	a
	)

static

Definition at line 7038 of file chan_iax2.c.

References iax2_thread::actions, ast_cli_args::argc, ast_cli(), AST_LIST_LOCK, AST_LIST_TRAVERSE, AST_LIST_UNLOCK, iax2_thread::checktime, CLI_GENERATE, CLI_INIT, CLI_SHOWUSAGE, CLI_SUCCESS, ast_cli_entry::command, iax2_thread::curfunc, ast_cli_args::fd, IAX_THREAD_TYPE_DYNAMIC, iax2_thread::iostate, iax2_thread::list, NULL, thread, iax2_thread::threadnum, type, iax2_thread::type, and ast_cli_entry::usage.

 {
    struct iax2_thread *thread = NULL;
    time_t t;
    int threadcount = 0, dynamiccount = 0;
    char type;
 
    switch (cmd) {
    case CLI_INIT:
       e->command = "iax2 show threads";
       e->usage =
          "Usage: iax2 show threads\n"
          "       Lists status of IAX helper threads\n";
       return NULL;
    case CLI_GENERATE:
       return NULL;
    }
    if (a->argc != 3)
       return CLI_SHOWUSAGE;
 
    ast_cli(a->fd, "IAX2 Thread Information\n");
    time(&t);
    ast_cli(a->fd, "Idle Threads:\n");
    AST_LIST_LOCK(&idle_list);
    AST_LIST_TRAVERSE(&idle_list, thread, list) {
 #ifdef DEBUG_SCHED_MULTITHREAD
       ast_cli(a->fd, "Thread %d: state=%u, update=%d, actions=%d, func='%s'\n",
          thread->threadnum, thread->iostate, (int)(t - thread->checktime), thread->actions, thread->curfunc);
 #else
       ast_cli(a->fd, "Thread %d: state=%u, update=%d, actions=%d\n",
          thread->threadnum, thread->iostate, (int)(t - thread->checktime), thread->actions);
 #endif
       threadcount++;
    }
    AST_LIST_UNLOCK(&idle_list);
    ast_cli(a->fd, "Active Threads:\n");
    AST_LIST_LOCK(&active_list);
    AST_LIST_TRAVERSE(&active_list, thread, list) {
       if (thread->type == IAX_THREAD_TYPE_DYNAMIC)
          type = 'D';
       else
          type = 'P';
 #ifdef DEBUG_SCHED_MULTITHREAD
       ast_cli(a->fd, "Thread %c%d: state=%u, update=%d, actions=%d, func='%s'\n",
          type, thread->threadnum, thread->iostate, (int)(t - thread->checktime), thread->actions, thread->curfunc);
 #else
       ast_cli(a->fd, "Thread %c%d: state=%u, update=%d, actions=%d\n",
          type, thread->threadnum, thread->iostate, (int)(t - thread->checktime), thread->actions);
 #endif
       threadcount++;
    }
    AST_LIST_UNLOCK(&active_list);
    ast_cli(a->fd, "Dynamic Threads:\n");
    AST_LIST_LOCK(&dynamic_list);
    AST_LIST_TRAVERSE(&dynamic_list, thread, list) {
 #ifdef DEBUG_SCHED_MULTITHREAD
       ast_cli(a->fd, "Thread %d: state=%u, update=%d, actions=%d, func='%s'\n",
          thread->threadnum, thread->iostate, (int)(t - thread->checktime), thread->actions, thread->curfunc);
 #else
       ast_cli(a->fd, "Thread %d: state=%u, update=%d, actions=%d\n",
          thread->threadnum, thread->iostate, (int)(t - thread->checktime), thread->actions);
 #endif
       dynamiccount++;
    }
    AST_LIST_UNLOCK(&dynamic_list);
    ast_cli(a->fd, "%d of %d threads accounted for with %d dynamic threads\n", threadcount, iaxthreadcount, dynamiccount);
    return CLI_SUCCESS;
 }

◆ handle_cli_iax2_show_users()

static char* handle_cli_iax2_show_users	(	struct ast_cli_entry *	e,
		int	cmd,
		struct ast_cli_args *	a
	)

static

Definition at line 6757 of file chan_iax2.c.

References iax2_user::acl, ao2_iterator_destroy(), ao2_iterator_init(), ao2_iterator_next, ast_cli_args::argc, ast_cli_args::argv, ast_acl_list_is_empty(), ast_cli(), ast_copy_string(), ast_strlen_zero, ast_test_flag64, iax2_user::authmethods, CLI_GENERATE, CLI_INIT, CLI_SHOWUSAGE, CLI_SUCCESS, ast_cli_entry::command, iax2_context::context, iax2_user::contexts, DEFAULT_CONTEXT, ast_cli_args::fd, FORMAT, FORMAT2, IAX_CODEC_NOCAP, IAX_CODEC_NOPREFS, IAX_CODEC_USER_FIRST, iax2_user::inkeys, iax2_user::name, NULL, iax2_user::secret, ast_cli_entry::usage, and user_unref().

 {
    regex_t regexbuf;
    int havepattern = 0;
 
 #define FORMAT "%-15.15s  %-20.20s  %-15.15s  %-15.15s  %-5.5s  %-5.10s\n"
 #define FORMAT2 "%-15.15s  %-20.20s  %-15.15d  %-15.15s  %-5.5s  %-5.10s\n"
 
    struct iax2_user *user = NULL;
    char auth[90];
    char *pstr = "";
    struct ao2_iterator i;
 
    switch (cmd) {
    case CLI_INIT:
       e->command = "iax2 show users [like]";
       e->usage =
          "Usage: iax2 show users [like <pattern>]\n"
          "       Lists all known IAX2 users.\n"
          "       Optional regular expression pattern is used to filter the user list.\n";
       return NULL;
    case CLI_GENERATE:
       return NULL;
    }
 
    switch (a->argc) {
    case 5:
       if (!strcasecmp(a->argv[3], "like")) {
          if (regcomp(&regexbuf, a->argv[4], REG_EXTENDED | REG_NOSUB))
             return CLI_SHOWUSAGE;
          havepattern = 1;
       } else
          return CLI_SHOWUSAGE;
    case 3:
       break;
    default:
       return CLI_SHOWUSAGE;
    }
 
    ast_cli(a->fd, FORMAT, "Username", "Secret", "Authen", "Def.Context", "A/C","Codec Pref");
    i = ao2_iterator_init(users, 0);
    for (; (user = ao2_iterator_next(&i)); user_unref(user)) {
       if (havepattern && regexec(&regexbuf, user->name, 0, NULL, 0))
          continue;
 
       if (!ast_strlen_zero(user->secret)) {
          ast_copy_string(auth,user->secret, sizeof(auth));
       } else if (!ast_strlen_zero(user->inkeys)) {
          snprintf(auth, sizeof(auth), "Key: %-15.15s ", user->inkeys);
       } else
          ast_copy_string(auth, "-no secret-", sizeof(auth));
 
       if(ast_test_flag64(user, IAX_CODEC_NOCAP))
          pstr = "REQ Only";
       else if(ast_test_flag64(user, IAX_CODEC_NOPREFS))
          pstr = "Disabled";
       else
          pstr = ast_test_flag64(user, IAX_CODEC_USER_FIRST) ? "Caller" : "Host";
 
       ast_cli(a->fd, FORMAT2, user->name, auth, user->authmethods,
          user->contexts ? user->contexts->context : DEFAULT_CONTEXT,
          ast_acl_list_is_empty(user->acl) ? "No" : "Yes", pstr);
    }
    ao2_iterator_destroy(&i);
 
    if (havepattern)
       regfree(&regexbuf);
 
    return CLI_SUCCESS;
 #undef FORMAT
 #undef FORMAT2
 }

◆ handle_cli_iax2_test_losspct()

static char* handle_cli_iax2_test_losspct	(	struct ast_cli_entry *	e,
		int	cmd,
		struct ast_cli_args *	a
	)

static

Definition at line 3701 of file chan_iax2.c.

References a, ast_cli_args::argc, ast_cli_args::argv, CLI_GENERATE, CLI_INIT, CLI_SHOWUSAGE, CLI_SUCCESS, ast_cli_entry::command, NULL, test_losspct, and ast_cli_entry::usage.

 {
    switch (cmd) {
    case CLI_INIT:
       e->command = "iax2 test losspct";
       e->usage =
          "Usage: iax2 test losspct <percentage>\n"
          "       For testing, throws away <percentage> percent of incoming packets\n";
       return NULL;
    case CLI_GENERATE:
       return NULL;
    }
    if (a->argc != 4)
       return CLI_SHOWUSAGE;
 
    test_losspct = atoi(a->argv[3]);
 
    return CLI_SUCCESS;
 }

◆ handle_cli_iax2_unregister()

static char* handle_cli_iax2_unregister	(	struct ast_cli_entry *	e,
		int	cmd,
		struct ast_cli_args *	a
	)

static

Definition at line 7107 of file chan_iax2.c.

References ao2_find, ast_cli_args::argc, ast_cli_args::argv, ast_cli(), CLI_GENERATE, CLI_INIT, CLI_SHOWUSAGE, CLI_SUCCESS, ast_cli_entry::command, complete_iax2_unregister(), iax2_peer::expire, expire_registry(), ast_cli_args::fd, find_peer(), ast_cli_args::line, ast_cli_args::n, NULL, OBJ_KEY, peer_ref(), peer_unref(), ast_cli_args::pos, ast_cli_entry::usage, and ast_cli_args::word.

 {
    struct iax2_peer *p;
 
    switch (cmd) {
    case CLI_INIT:
       e->command = "iax2 unregister";
       e->usage =
          "Usage: iax2 unregister <peername>\n"
          "       Unregister (force expiration) an IAX2 peer from the registry.\n";
       return NULL;
    case CLI_GENERATE:
       return complete_iax2_unregister(a->line, a->word, a->pos, a->n);
    }
 
    if (a->argc != 3)
       return CLI_SHOWUSAGE;
 
    p = find_peer(a->argv[2], 1);
    if (p) {
       if (p->expire > -1) {
          struct iax2_peer *peer;
 
          peer = ao2_find(peers, a->argv[2], OBJ_KEY);
          if (peer) {
             expire_registry(peer_ref(peer)); /* will release its own reference when done */
             peer_unref(peer); /* ref from ao2_find() */
             ast_cli(a->fd, "Peer %s unregistered\n", a->argv[2]);
          } else {
             ast_cli(a->fd, "Peer %s not found\n", a->argv[2]);
          }
       } else {
          ast_cli(a->fd, "Peer %s not registered\n", a->argv[2]);
       }
       peer_unref(p);
    } else {
       ast_cli(a->fd, "Peer unknown: %s. Not unregistered\n", a->argv[2]);
    }
    return CLI_SUCCESS;
 }

◆ handle_deferred_full_frames()

static void handle_deferred_full_frames ( struct iax2_thread * thread )

static

Handle any deferred full frames for this thread.

Definition at line 9712 of file chan_iax2.c.

References ast_free, AST_LIST_REMOVE_HEAD, ast_mutex_lock, ast_mutex_unlock, iax2_pkt_buf::buf, iax2_thread::buf, iax2_thread::buf_len, iax2_thread::buf_size, iax2_thread::full_frames, iax2_pkt_buf::len, iax2_thread::lock, NULL, and socket_process().

Referenced by iax2_process_thread().

 {
    struct iax2_pkt_buf *pkt_buf;
 
    ast_mutex_lock(&thread->lock);
 
    while ((pkt_buf = AST_LIST_REMOVE_HEAD(&thread->full_frames, entry))) {
       ast_mutex_unlock(&thread->lock);
 
       thread->buf = pkt_buf->buf;
       thread->buf_len = pkt_buf->len;
       thread->buf_size = pkt_buf->len + 1;
 
       socket_process(thread);
 
       thread->buf = NULL;
       ast_free(pkt_buf);
 
       ast_mutex_lock(&thread->lock);
    }
 
    ast_mutex_unlock(&thread->lock);
 }

◆ handle_error()

static int handle_error ( void )

static

Definition at line 3355 of file chan_iax2.c.

References ast_inet_ntoa(), ast_log, errno, LOG_WARNING, netsocket, and NULL.

Referenced by send_packet(), socket_read(), and transmit_trunk().

 {
    /* XXX Ideally we should figure out why an error occurred and then abort those
       rather than continuing to try.  Unfortunately, the published interface does
       not seem to work XXX */
 #if 0
    struct sockaddr_in *sin;
    int res;
    struct msghdr m;
    struct sock_extended_err e;
    m.msg_name = NULL;
    m.msg_namelen = 0;
    m.msg_iov = NULL;
    m.msg_control = &e;
    m.msg_controllen = sizeof(e);
    m.msg_flags = 0;
    res = recvmsg(netsocket, &m, MSG_ERRQUEUE);
    if (res < 0)
       ast_log(LOG_WARNING, "Error detected, but unable to read error: %s\n", strerror(errno));
    else {
       if (m.msg_controllen) {
          sin = (struct sockaddr_in *)SO_EE_OFFENDER(&e);
          if (sin)
             ast_log(LOG_WARNING, "Receive error from %s\n", ast_inet_ntoa(sin->sin_addr));
          else
             ast_log(LOG_WARNING, "No address detected??\n");
       } else {
          ast_log(LOG_WARNING, "Local error: %s\n", strerror(e.ee_errno));
       }
    }
 #endif
    return 0;
 }

◆ iax2_ack_registry()

static int iax2_ack_registry	(	struct iax_ies *	ies,
		struct ast_sockaddr *	addr,
		int	callno
	)

static

Acknowledgment received for OUR registration.

Definition at line 8716 of file chan_iax2.c.

References iax2_registry::addr, iax_ies::apparent_addr, ast_copy_string(), ast_log, ast_sockaddr_cmp(), ast_sockaddr_copy(), ast_sockaddr_isnull(), ast_sockaddr_stringify(), ast_verb, iax_ies::calling_number, iax2_registry::expire, iax2_do_register_s(), iax2_publish_registry(), iax2_sched_replace(), LOG_WARNING, iax2_registry::messages, iax_ies::msgcount, NULL, iax_ies::refresh, refresh, iax2_registry::refresh, chan_iax2_pvt::reg, REG_STATE_REGISTERED, iax2_registry::regstate, iax2_registry::us, iax_ies::username, and iax2_registry::username.

Referenced by socket_process_helper().

 {
    struct iax2_registry *reg;
    /* Start pessimistic */
    char peer[256] = "";
    char msgstatus[60];
    int refresh = 60;
    char ourip[256] = "<Unspecified>";
    struct ast_sockaddr oldus;
    struct ast_sockaddr us;
    int oldmsgs;
 
    if (!ast_sockaddr_isnull(&ies->apparent_addr)) {
       ast_sockaddr_copy(&us, &ies->apparent_addr);
    }
    if (ies->username) {
       ast_copy_string(peer, ies->username, sizeof(peer));
    }
    if (ies->refresh) {
       refresh = ies->refresh;
    }
    if (ies->calling_number) {
       /* We don't do anything with it really, but maybe we should */
    }
    reg = iaxs[callno]->reg;
    if (!reg) {
       ast_log(LOG_WARNING, "Registry acknowledge on unknown registry '%s'\n", peer);
       return -1;
    }
    ast_sockaddr_copy(&oldus, &reg->us);
    oldmsgs = reg->messages;
    if (ast_sockaddr_cmp(&reg->addr, addr)) {
       ast_log(LOG_WARNING, "Received unsolicited registry ack from '%s'\n", ast_sockaddr_stringify(addr));
       return -1;
    }
    ast_sockaddr_copy(&reg->us, &us);
    if (ies->msgcount >= 0) {
       reg->messages = ies->msgcount & 0xffff;      /* only low 16 bits are used in the transmission of the IE */
    }
    /* always refresh the registration at the interval requested by the server
       we are registering to
    */
    reg->refresh = refresh;
    reg->expire = iax2_sched_replace(reg->expire, sched,
       (5 * reg->refresh / 6) * 1000, iax2_do_register_s, reg);
    if (ast_sockaddr_cmp(&oldus, &reg->us) || (reg->messages != oldmsgs)) {
 
       if (reg->messages > 255) {
          snprintf(msgstatus, sizeof(msgstatus), " with %d new and %d old messages waiting", reg->messages & 0xff, reg->messages >> 8);
       } else if (reg->messages > 1) {
          snprintf(msgstatus, sizeof(msgstatus), " with %d new messages waiting", reg->messages);
       } else if (reg->messages > 0) {
          ast_copy_string(msgstatus, " with 1 new message waiting", sizeof(msgstatus));
       } else {
          ast_copy_string(msgstatus, " with no messages waiting", sizeof(msgstatus));
       }
 
       snprintf(ourip, sizeof(ourip), "%s", ast_sockaddr_stringify(&reg->us));
 
       ast_verb(3, "Registered IAX2 to '%s', who sees us as %s%s\n", ast_sockaddr_stringify(addr), ourip, msgstatus);
       iax2_publish_registry(reg->username, ast_sockaddr_stringify(addr), "Registered", NULL);
    }
    reg->regstate = REG_STATE_REGISTERED;
    return 0;
 }

◆ iax2_allow_new()

static int attribute_pure iax2_allow_new	(	int	frametype,
		int	subclass,
		int	inbound
	)

inlinestatic

Definition at line 3085 of file chan_iax2.c.

References AST_FRAME_IAX, IAX_COMMAND_FWDOWNL, IAX_COMMAND_NEW, IAX_COMMAND_POKE, IAX_COMMAND_REGREL, and IAX_COMMAND_REGREQ.

Referenced by resend_with_token(), and socket_process_helper().

 {
    if (frametype != AST_FRAME_IAX) {
       return 0;
    }
    switch (subclass) {
    case IAX_COMMAND_NEW:
    case IAX_COMMAND_REGREQ:
    case IAX_COMMAND_FWDOWNL:
    case IAX_COMMAND_REGREL:
       return 1;
    case IAX_COMMAND_POKE:
       if (!inbound) {
          return 1;
       }
       break;
    }
    return 0;
 }

◆ iax2_answer()

static int iax2_answer ( struct ast_channel * c )

static

Definition at line 5727 of file chan_iax2.c.

References ast_channel_tech_pvt(), AST_CONTROL_ANSWER, ast_debug, AST_FRAME_CONTROL, NULL, PTR_TO_CALLNO, and send_command_locked().

Referenced by jb_debug_output().

 {
    unsigned short callno = PTR_TO_CALLNO(ast_channel_tech_pvt(c));
    ast_debug(1, "Answering IAX2 call\n");
    return send_command_locked(callno, AST_FRAME_CONTROL, AST_CONTROL_ANSWER, 0, NULL, 0, -1);
 }

◆ iax2_append_register()

static int iax2_append_register	(	const char *	hostname,
		const char *	username,
		const char *	secret,
		const char *	porta
	)

static

Definition at line 8782 of file chan_iax2.c.

References iax2_registry::addr, AST_AF_UNSPEC, ast_calloc, ast_copy_string(), ast_dnsmgr_lookup(), ast_free, AST_LIST_INSERT_HEAD, AST_LIST_LOCK, AST_LIST_UNLOCK, ast_sockaddr_port, ast_sockaddr_set_port, iax2_registry::dnsmgr, iax2_registry::expire, iax2_registry::hostname, IAX_DEFAULT_PORTNO, IAX_DEFAULT_REG_EXPIRE, NULL, iax2_registry::port, iax2_registry::refresh, iax2_registry::secret, srvlookup, ast_sockaddr::ss, and iax2_registry::username.

Referenced by iax2_register().

 {
    struct iax2_registry *reg;
 
    if (!(reg = ast_calloc(1, sizeof(*reg) + strlen(hostname) + 1))) {
       return -1;
    }
 
    reg->addr.ss.ss_family = AST_AF_UNSPEC;
    if (ast_dnsmgr_lookup(hostname, &reg->addr, &reg->dnsmgr, srvlookup ? "_iax._udp" : NULL) < 0) {
       ast_free(reg);
       return -1;
    }
 
    ast_copy_string(reg->username, username, sizeof(reg->username));
    strcpy(reg->hostname, hostname); /* Note: This is safe */
 
    if (secret) {
       ast_copy_string(reg->secret, secret, sizeof(reg->secret));
    }
 
    reg->expire = -1;
    reg->refresh = IAX_DEFAULT_REG_EXPIRE;
 
    reg->port = ast_sockaddr_port(&reg->addr);
 
    if (!porta && !reg->port) {
       reg->port = IAX_DEFAULT_PORTNO;
    } else if (porta) {
       sscanf(porta, "%5d", &reg->port);
    }
 
    ast_sockaddr_set_port(&reg->addr, reg->port);
 
    AST_LIST_LOCK(&registrations);
    AST_LIST_INSERT_HEAD(&registrations, reg, entry);
    AST_LIST_UNLOCK(&registrations);
 
    return 0;
 }

◆ iax2_call()

static int iax2_call	(	struct ast_channel *	c,
		const char *	dest,
		int	timeout
	)

static

Definition at line 5076 of file chan_iax2.c.

Referenced by jb_debug_output().

 {
    struct ast_sockaddr addr;
    char *l=NULL, *n=NULL, *tmpstr;
    struct iax_ie_data ied;
    char *defaultrdest = "s";
    unsigned short callno = PTR_TO_CALLNO(ast_channel_tech_pvt(c));
    struct parsed_dial_string pds;
    struct create_addr_info cai;
    struct ast_var_t *var;
    struct ast_datastore *variablestore = ast_channel_datastore_find(c, &iax2_variable_datastore_info, NULL);
    const char* osp_token_ptr;
    unsigned int osp_token_length;
    unsigned char osp_block_index;
    unsigned int osp_block_length;
    unsigned char osp_buffer[256];
    char encoded_prefs[32];
    iax2_format iax2_tmpfmt;
 
    if ((ast_channel_state(c) != AST_STATE_DOWN) && (ast_channel_state(c) != AST_STATE_RESERVED)) {
       ast_log(LOG_WARNING, "Channel is already in use (%s)?\n", ast_channel_name(c));
       return -1;
    }
 
    memset(&cai, 0, sizeof(cai));
    cai.encmethods = iax2_encryption;
    cai.authmethods = iax2_authmethods;
 
    memset(&pds, 0, sizeof(pds));
    tmpstr = ast_strdupa(dest);
    parse_dial_string(tmpstr, &pds);
 
    if (ast_strlen_zero(pds.peer)) {
       ast_log(LOG_WARNING, "No peer provided in the IAX2 dial string '%s'\n", dest);
       return -1;
    }
    if (!pds.exten) {
       pds.exten = defaultrdest;
    }
    if (create_addr(pds.peer, c, &addr, &cai)) {
       ast_log(LOG_WARNING, "No address associated with '%s'\n", pds.peer);
       return -1;
    }
 
    if (ast_test_flag64(&cai, IAX_FORCE_ENCRYPT) ||
       ast_test_flag64(iaxs[callno], IAX_FORCE_ENCRYPT)) {
       if (!cai.encmethods) {
          ast_log(LOG_WARNING, "Encryption forced for call, but not enabled\n");
          ast_channel_hangupcause_set(c, AST_CAUSE_BEARERCAPABILITY_NOTAVAIL);
          return -1;
       }
       if (((cai.authmethods & IAX_AUTH_MD5) || (cai.authmethods & IAX_AUTH_PLAINTEXT)) &&
          ast_strlen_zero(cai.secret) && ast_strlen_zero(pds.password)) {
               ast_log(LOG_WARNING, "Call terminated. Encryption forced but no secret provided\n");
               return -1;
       }
    }
 
    if (!pds.username && !ast_strlen_zero(cai.username))
       pds.username = cai.username;
    if (!pds.password && !ast_strlen_zero(cai.secret))
       pds.password = cai.secret;
    if (!pds.key && !ast_strlen_zero(cai.outkey))
       pds.key = cai.outkey;
    if (!pds.context && !ast_strlen_zero(cai.peercontext))
       pds.context = cai.peercontext;
 
    /* Keep track of the context for outgoing calls too */
    ast_channel_context_set(c, cai.context);
 
    if (pds.port) {
       int bindport;
       if (ast_parse_arg(pds.port, PARSE_UINT32 | PARSE_IN_RANGE, &bindport, 0, 65535)) {
          ast_sockaddr_set_port(&addr, bindport);
       }
    }
 
    l = ast_channel_connected(c)->id.number.valid ? ast_channel_connected(c)->id.number.str : NULL;
    n = ast_channel_connected(c)->id.name.valid ? ast_channel_connected(c)->id.name.str : NULL;
 
    /* Now build request */
    memset(&ied, 0, sizeof(ied));
 
    /* On new call, first IE MUST be IAX version of caller */
    iax_ie_append_short(&ied, IAX_IE_VERSION, IAX_PROTO_VERSION);
    iax_ie_append_str(&ied, IAX_IE_CALLED_NUMBER, pds.exten);
    if (pds.options && strchr(pds.options, 'a')) {
       /* Request auto answer */
       iax_ie_append(&ied, IAX_IE_AUTOANSWER);
    }
 
    /* WARNING: this breaks down at 190 bits! */
    iax2_codec_pref_convert(&cai.prefs, encoded_prefs, sizeof(encoded_prefs), 1);
    iax_ie_append_str(&ied, IAX_IE_CODEC_PREFS, encoded_prefs);
 
    if (l) {
       iax_ie_append_str(&ied, IAX_IE_CALLING_NUMBER, l);
       iax_ie_append_byte(&ied, IAX_IE_CALLINGPRES,
          ast_party_id_presentation(&ast_channel_connected(c)->id));
    } else if (n) {
       iax_ie_append_byte(&ied, IAX_IE_CALLINGPRES,
          ast_party_id_presentation(&ast_channel_connected(c)->id));
    } else {
       iax_ie_append_byte(&ied, IAX_IE_CALLINGPRES, AST_PRES_NUMBER_NOT_AVAILABLE);
    }
 
    iax_ie_append_byte(&ied, IAX_IE_CALLINGTON, ast_channel_connected(c)->id.number.plan);
    iax_ie_append_short(&ied, IAX_IE_CALLINGTNS, ast_channel_dialed(c)->transit_network_select);
 
    if (n)
       iax_ie_append_str(&ied, IAX_IE_CALLING_NAME, n);
    if (ast_test_flag64(iaxs[callno], IAX_SENDANI)
       && ast_channel_connected(c)->ani.number.valid
       && ast_channel_connected(c)->ani.number.str) {
       iax_ie_append_str(&ied, IAX_IE_CALLING_ANI, ast_channel_connected(c)->ani.number.str);
    }
 
    if (!ast_strlen_zero(ast_channel_language(c)))
       iax_ie_append_str(&ied, IAX_IE_LANGUAGE, ast_channel_language(c));
    if (!ast_strlen_zero(ast_channel_dialed(c)->number.str)) {
       iax_ie_append_str(&ied, IAX_IE_DNID, ast_channel_dialed(c)->number.str);
    }
    if (ast_channel_redirecting(c)->from.number.valid
       && !ast_strlen_zero(ast_channel_redirecting(c)->from.number.str)) {
       iax_ie_append_str(&ied, IAX_IE_RDNIS, ast_channel_redirecting(c)->from.number.str);
    }
 
    if (pds.context)
       iax_ie_append_str(&ied, IAX_IE_CALLED_CONTEXT, pds.context);
 
    if (pds.username)
       iax_ie_append_str(&ied, IAX_IE_USERNAME, pds.username);
 
    if (cai.encmethods)
       iax_ie_append_short(&ied, IAX_IE_ENCRYPTION, cai.encmethods);
 
    ast_mutex_lock(&iaxsl[callno]);
 
    if (!ast_strlen_zero(ast_channel_context(c)))
       ast_string_field_set(iaxs[callno], context, ast_channel_context(c));
 
    if (pds.username)
       ast_string_field_set(iaxs[callno], username, pds.username);
 
    iaxs[callno]->encmethods = cai.encmethods;
 
    iaxs[callno]->adsi = cai.adsi;
 
    ast_string_field_set(iaxs[callno], mohinterpret, cai.mohinterpret);
    ast_string_field_set(iaxs[callno], mohsuggest, cai.mohsuggest);
 
    if (pds.key)
       ast_string_field_set(iaxs[callno], outkey, pds.key);
    if (pds.password)
       ast_string_field_set(iaxs[callno], secret, pds.password);
 
    iax2_tmpfmt = iax2_format_compatibility_cap2bitfield(ast_channel_nativeformats(c));
    iax_ie_append_int(&ied, IAX_IE_FORMAT, (int) iax2_tmpfmt);
    iax_ie_append_versioned_uint64(&ied, IAX_IE_FORMAT2, 0, iax2_tmpfmt);
 
    iax_ie_append_int(&ied, IAX_IE_CAPABILITY, (int) iaxs[callno]->capability);
    iax_ie_append_versioned_uint64(&ied, IAX_IE_CAPABILITY2, 0, iaxs[callno]->capability);
    iax_ie_append_short(&ied, IAX_IE_ADSICPE, ast_channel_adsicpe(c));
    iax_ie_append_int(&ied, IAX_IE_DATETIME, iax2_datetime(cai.timezone));
 
    if (iaxs[callno]->maxtime) {
       /* Initialize pingtime and auto-congest time */
       iaxs[callno]->pingtime = iaxs[callno]->maxtime / 2;
       iaxs[callno]->initid = iax2_sched_add(sched, iaxs[callno]->maxtime * 2, auto_congest, CALLNO_TO_PTR(callno));
    } else if (autokill) {
       iaxs[callno]->pingtime = autokill / 2;
       iaxs[callno]->initid = iax2_sched_add(sched, autokill * 2, auto_congest, CALLNO_TO_PTR(callno));
    }
 
    /* Check if there is an OSP token */
    osp_token_ptr = pbx_builtin_getvar_helper(c, "IAX2OSPTOKEN");
    if (!ast_strlen_zero(osp_token_ptr)) {
       if ((osp_token_length = strlen(osp_token_ptr)) <= IAX_MAX_OSPTOKEN_SIZE) {
          osp_block_index = 0;
          while (osp_token_length > 0) {
             osp_block_length = IAX_MAX_OSPBLOCK_SIZE < osp_token_length ? IAX_MAX_OSPBLOCK_SIZE : osp_token_length;
             osp_buffer[0] = osp_block_index;
             memcpy(osp_buffer + 1, osp_token_ptr, osp_block_length);
             iax_ie_append_raw(&ied, IAX_IE_OSPTOKEN, osp_buffer, osp_block_length + 1);
             osp_block_index++;
             osp_token_ptr += osp_block_length;
             osp_token_length -= osp_block_length;
          }
       } else
          ast_log(LOG_WARNING, "OSP token is too long\n");
    } else if (iaxdebug)
       ast_debug(1, "OSP token is undefined\n");
 
    /* send the command using the appropriate socket for this peer */
    iaxs[callno]->sockfd = cai.sockfd;
 
    /* Add remote vars */
    if (variablestore) {
       AST_LIST_HEAD(, ast_var_t) *variablelist = variablestore->data;
       ast_debug(1, "Found an IAX variable store on this channel\n");
       AST_LIST_LOCK(variablelist);
       AST_LIST_TRAVERSE(variablelist, var, entries) {
          char tmp[256];
          int i;
          ast_debug(1, "Found IAXVAR '%s' with value '%s' (to transmit)\n", ast_var_name(var), ast_var_value(var));
          /* Automatically divide the value up into sized chunks */
          for (i = 0; i < strlen(ast_var_value(var)); i += 255 - (strlen(ast_var_name(var)) + 1)) {
             snprintf(tmp, sizeof(tmp), "%s=%s", ast_var_name(var), ast_var_value(var) + i);
             iax_ie_append_str(&ied, IAX_IE_VARIABLE, tmp);
          }
       }
       AST_LIST_UNLOCK(variablelist);
    }
 
    /* Transmit the string in a "NEW" request */
    add_empty_calltoken_ie(iaxs[callno], &ied); /* this _MUST_ be the last ie added */
    send_command(iaxs[callno], AST_FRAME_IAX, IAX_COMMAND_NEW, 0, ied.buf, ied.pos, -1);
 
    ast_mutex_unlock(&iaxsl[callno]);
    ast_setstate(c, AST_STATE_RINGING);
 
    return 0;
 }

◆ iax2_canmatch()

static int iax2_canmatch	(	struct ast_channel *	chan,
		const char *	context,
		const char *	exten,
		int	priority,
		const char *	callerid,
		const char *	data
	)

static

part of the IAX2 dial plan switch interface

Definition at line 14293 of file chan_iax2.c.

References AST_LIST_LOCK, AST_LIST_UNLOCK, ast_log, CACHE_FLAG_CANEXIST, find_cache(), iax2_dpcache::flags, LOG_NOTICE, LOG_WARNING, and NULL.

 {
    int res = 0;
    struct iax2_dpcache *dp = NULL;
 #if 0
    ast_log(LOG_NOTICE, "iax2_canmatch: con: %s, exten: %s, pri: %d, cid: %s, data: %s\n", context, exten, priority, callerid ? callerid : "<unknown>", data);
 #endif
    if ((priority != 1) && (priority != 2))
       return 0;
 
    AST_LIST_LOCK(&dpcache);
    if ((dp = find_cache(chan, data, context, exten, priority))) {
       if (dp->flags & CACHE_FLAG_CANEXIST)
          res = 1;
    } else {
       ast_log(LOG_WARNING, "Unable to make DP cache\n");
    }
    AST_LIST_UNLOCK(&dpcache);
 
    return res;
 }

◆ iax2_codec_choose()

static iax2_format iax2_codec_choose	(	struct iax2_codec_pref *	pref,
		iax2_format	formats
	)

static

Definition at line 1881 of file chan_iax2.c.

References ao2_ref, ast_format_cap_alloc, AST_FORMAT_CAP_FLAG_DEFAULT, ast_format_compatibility_format2bitfield(), codec_choose_from_prefs(), format, and iax2_format_compatibility_bitfield2cap().

Referenced by socket_process_helper().

 {
    struct ast_format_cap *cap;
    struct ast_format *tmpfmt;
    iax2_format format = 0;
 
    if ((cap = ast_format_cap_alloc(AST_FORMAT_CAP_FLAG_DEFAULT))) {
       iax2_format_compatibility_bitfield2cap(formats, cap);
       tmpfmt = codec_choose_from_prefs(pref, cap);
       if (!tmpfmt) {
          ao2_ref(cap, -1);
          return 0;
       }
 
       format = ast_format_compatibility_format2bitfield(tmpfmt);
       ao2_ref(tmpfmt, -1);
       ao2_ref(cap, -1);
    }
 
    return format;
 }

◆ iax2_datetime()

static unsigned int iax2_datetime ( const char * tz )

static

Definition at line 4746 of file chan_iax2.c.

References ast_localtime(), ast_strlen_zero, ast_tvnow(), NULL, ast_tm::tm_hour, ast_tm::tm_mday, ast_tm::tm_min, ast_tm::tm_mon, ast_tm::tm_sec, ast_tm::tm_year, and tmp().

Referenced by iax2_call(), and update_registry().

 {
    struct timeval t = ast_tvnow();
    struct ast_tm tm;
    unsigned int tmp;
    ast_localtime(&t, &tm, ast_strlen_zero(tz) ? NULL : tz);
    tmp  = (tm.tm_sec >> 1) & 0x1f;        /* 5 bits of seconds */
    tmp |= (tm.tm_min & 0x3f) << 5;        /* 6 bits of minutes */
    tmp |= (tm.tm_hour & 0x1f) << 11;      /* 5 bits of hours */
    tmp |= (tm.tm_mday & 0x1f) << 16;      /* 5 bits of day of month */
    tmp |= ((tm.tm_mon + 1) & 0xf) << 21;     /* 4 bits of month */
    tmp |= ((tm.tm_year - 100) & 0x7f) << 25; /* 7 bits of year */
    return tmp;
 }

◆ iax2_delete_from_sched()

static int iax2_delete_from_sched ( const void * data )

static

Definition at line 2077 of file chan_iax2.c.

References AST_SCHED_DEL, and stasis_subscription::data.

Referenced by iax2_destroy_helper().

 {
    int sched_id = (int)(long)data;
 
    AST_SCHED_DEL(sched, sched_id);
 
    return 0;
 }

◆ iax2_destroy()

static void iax2_destroy ( int callno )

static

Definition at line 3459 of file chan_iax2.c.

References ao2_ref, ast_channel_trylock, ast_channel_unlock, ast_debug, ast_queue_hangup(), DEADLOCK_AVOIDANCE, iax2_destroy_helper(), NULL, chan_iax2_pvt::owner, chan_iax2_pvt::peercallno, remove_by_peercallno(), remove_by_transfercallno(), and chan_iax2_pvt::transfercallno.

Referenced by __attempt_transmit(), __iax2_poke_noanswer(), __unload_module(), delete_users(), iax2_do_register(), iax2_hangup(), iax2_poke_peer(), peer_destructor(), scheduled_destroy(), and socket_process_helper().

 {
    struct chan_iax2_pvt *pvt = NULL;
    struct ast_channel *owner = NULL;
 
 retry:
    if ((pvt = iaxs[callno])) {
 #if 0
       /* iax2_destroy_helper gets called from this function later on.  When
        * called twice, we get the (previously) familiar FRACK! errors in
        * devmode, from the scheduler.  An alternative to this approach is to
        * reset the scheduler entries to -1 when they're deleted in
        * iax2_destroy_helper().  That approach was previously decided to be
        * "wrong" because "the memory is going to be deallocated anyway.  Why
        * should we be resetting those values?" */
       iax2_destroy_helper(pvt);
 #endif
    }
 
    owner = pvt ? pvt->owner : NULL;
 
    if (owner) {
       if (ast_channel_trylock(owner)) {
          ast_debug(3, "Avoiding IAX destroy deadlock\n");
          DEADLOCK_AVOIDANCE(&iaxsl[callno]);
          goto retry;
       }
    }
 
    if (!owner) {
       iaxs[callno] = NULL;
    }
 
    if (pvt) {
       if (!owner) {
          pvt->owner = NULL;
       } else {
          /* If there's an owner, prod it to give up */
          /* It is ok to use ast_queue_hangup() here instead of iax2_queue_hangup()
           * because we already hold the owner channel lock. */
          ast_queue_hangup(owner);
       }
 
       if (pvt->peercallno) {
          remove_by_peercallno(pvt);
       }
 
       if (pvt->transfercallno) {
          remove_by_transfercallno(pvt);
       }
 
       if (!owner) {
          ao2_ref(pvt, -1);
          pvt = NULL;
       }
    }
 
    if (owner) {
       ast_channel_unlock(owner);
    }
 }

◆ iax2_destroy_helper()

static void iax2_destroy_helper ( struct chan_iax2_pvt * pvt )

static

Note: Assumes the lock on the pvt is already held, when iax2_destroy_helper() is called.

Definition at line 2088 of file chan_iax2.c.

References ao2_find, ast_atomic_fetchadd_int(), ast_clear_flag64, AST_SCHED_DEL, ast_test_flag64, chan_iax2_pvt::authid, chan_iax2_pvt::autoid, iax2_user::curauthreq, chan_iax2_pvt::destroy_initiated, iax2_delete_from_sched(), iax2_sched_add(), IAX_MAXAUTHREQ, chan_iax2_pvt::initid, chan_iax2_pvt::jbid, chan_iax2_pvt::keyrotateid, chan_iax2_pvt::lagid, OBJ_KEY, chan_iax2_pvt::pingid, user, user_unref(), and chan_iax2_pvt::username.

Referenced by iax2_destroy(), iax2_predestroy(), pvt_destructor(), and stop_stuff().

 {
    /* Decrement AUTHREQ count if needed */
    if (ast_test_flag64(pvt, IAX_MAXAUTHREQ)) {
       struct iax2_user *user;
 
       user = ao2_find(users, pvt->username, OBJ_KEY);
       if (user) {
          ast_atomic_fetchadd_int(&user->curauthreq, -1);
          user_unref(user);
       }
 
       ast_clear_flag64(pvt, IAX_MAXAUTHREQ);
    }
 
 
    /* Mark call destroy initiated flag. */
    pvt->destroy_initiated = 1;
 
    /*
     * Schedule deleting the scheduled (but didn't run yet) PINGs or LAGRQs.
     * Already running tasks will be terminated because of destroy_initiated.
     *
     * Don't call AST_SCHED_DEL from this thread for pingid and lagid because
     * it leads to a deadlock between the scheduler thread callback locking
     * the callno mutex and this thread which holds the callno mutex one or
     * more times.  It is better to have another thread delete the scheduled
     * callbacks which doesn't lock the callno mutex.
     */
    iax2_sched_add(sched, 0, iax2_delete_from_sched, (void*)(long)pvt->pingid);
    iax2_sched_add(sched, 0, iax2_delete_from_sched, (void*)(long)pvt->lagid);
 
    pvt->pingid = -1;
    pvt->lagid = -1;
 
    AST_SCHED_DEL(sched, pvt->autoid);
    AST_SCHED_DEL(sched, pvt->authid);
    AST_SCHED_DEL(sched, pvt->initid);
    AST_SCHED_DEL(sched, pvt->jbid);
    AST_SCHED_DEL(sched, pvt->keyrotateid);
 }

◆ iax2_devicestate()

static int iax2_devicestate ( const char * data )

static

Part of the device state notification system —.

Definition at line 14503 of file chan_iax2.c.

References iax2_peer::addr, ast_debug, AST_DEVICE_INVALID, AST_DEVICE_UNAVAILABLE, AST_DEVICE_UNKNOWN, ast_log, ast_sockaddr_isnull(), ast_sockaddr_stringify(), ast_strdupa, ast_strlen_zero, iax2_peer::defaddr, find_peer(), iax2_peer::historicms, iax2_peer::lastms, LOG_WARNING, iax2_peer::maxms, parse_dial_string(), parsed_dial_string::peer, peer_unref(), and tmp().

Referenced by jb_debug_output().

 {
    struct parsed_dial_string pds;
    char *tmp = ast_strdupa(data);
    struct iax2_peer *p;
    int res = AST_DEVICE_INVALID;
 
    memset(&pds, 0, sizeof(pds));
    parse_dial_string(tmp, &pds);
 
    if (ast_strlen_zero(pds.peer)) {
       ast_log(LOG_WARNING, "No peer provided in the IAX2 dial string '%s'\n", data);
       return res;
    }
 
    ast_debug(3, "Checking device state for device %s\n", pds.peer);
 
    /* SLD: FIXME: second call to find_peer during registration */
    if (!(p = find_peer(pds.peer, 1)))
       return res;
 
    res = AST_DEVICE_UNAVAILABLE;
 
    ast_debug(3, "Found peer. What's device state of %s? addr=%s, defaddr=%s maxms=%d, lastms=%d\n",
       pds.peer, ast_sockaddr_stringify(&p->addr), ast_sockaddr_stringify(&p->defaddr), p->maxms, p->lastms);
 
    if (((!ast_sockaddr_isnull(&p->addr)) || (!ast_sockaddr_isnull(&p->defaddr))) &&
        (!p->maxms || ((p->lastms > -1) && (p->historicms <= p->maxms)))) {
       /* Peer is registered, or have default IP address
          and a valid registration */
       if (p->historicms == 0 || p->historicms <= p->maxms)
          /* let the core figure out whether it is in use or not */
          res = AST_DEVICE_UNKNOWN;
    }
 
    peer_unref(p);
 
    return res;
 }

◆ iax2_digit_begin()

static int iax2_digit_begin	(	struct ast_channel *	c,
		char	digit
	)

static

Definition at line 4316 of file chan_iax2.c.

References ast_channel_tech_pvt(), AST_FRAME_DTMF_BEGIN, NULL, PTR_TO_CALLNO, and send_command_locked().

Referenced by jb_debug_output().

 {
    return send_command_locked(PTR_TO_CALLNO(ast_channel_tech_pvt(c)), AST_FRAME_DTMF_BEGIN, digit, 0, NULL, 0, -1);
 }

◆ iax2_digit_end()

static int iax2_digit_end	(	struct ast_channel *	c,
		char	digit,
		unsigned int	duration
	)

static

Definition at line 4321 of file chan_iax2.c.

References ast_channel_tech_pvt(), AST_FRAME_DTMF_END, NULL, PTR_TO_CALLNO, and send_command_locked().

Referenced by jb_debug_output().

 {
    return send_command_locked(PTR_TO_CALLNO(ast_channel_tech_pvt(c)), AST_FRAME_DTMF_END, digit, 0, NULL, 0, -1);
 }

◆ iax2_do_register()

static int iax2_do_register ( struct iax2_registry * reg )

static

Definition at line 12136 of file chan_iax2.c.

References add_empty_calltoken_ie(), iax2_registry::addr, ast_debug, ast_dnsmgr_changed(), ast_dnsmgr_refresh(), AST_FRAME_IAX, ast_log, ast_mutex_lock, ast_mutex_unlock, ast_sockaddr_isnull(), ast_sockaddr_port, ast_sockaddr_set_port, iax_ie_data::buf, iax2_registry::callno, defaultsockfd, iax2_registry::dnsmgr, iax2_registry::expire, find_callno_locked(), iax2_destroy(), iax2_do_register_s(), iax2_sched_replace(), IAX_COMMAND_REGREQ, iax_ie_append_short(), iax_ie_append_str(), IAX_IE_REFRESH, IAX_IE_USERNAME, iaxdebug, LOG_WARNING, NEW_FORCE, iax2_registry::port, iax_ie_data::pos, iax2_registry::refresh, chan_iax2_pvt::reg, REG_STATE_REGSENT, REG_STATE_TIMEOUT, iax2_registry::regstate, send_command(), and iax2_registry::username.

Referenced by __iax2_do_register_s(), authenticate_reply(), jb_debug_output(), load_module(), network_change_sched_cb(), and reload_config().

 {
    struct iax_ie_data ied;
    if (iaxdebug)
       ast_debug(1, "Sending registration request for '%s'\n", reg->username);
 
    if (reg->dnsmgr &&
        ((reg->regstate == REG_STATE_TIMEOUT) || ast_sockaddr_isnull(&reg->addr))) {
       /* Maybe the IP has changed, force DNS refresh */
       ast_dnsmgr_refresh(reg->dnsmgr);
    }
 
    /*
     * if IP has Changed, free allocated call to create a new one with new IP
     * call has the pointer to IP and must be updated to the new one
     */
    if (reg->dnsmgr && ast_dnsmgr_changed(reg->dnsmgr) && (reg->callno > 0)) {
       int callno = reg->callno;
       ast_mutex_lock(&iaxsl[callno]);
       iax2_destroy(callno);
       ast_mutex_unlock(&iaxsl[callno]);
       reg->callno = 0;
    }
    if (ast_sockaddr_isnull(&reg->addr)) {
       if (iaxdebug)
          ast_debug(1, "Unable to send registration request for '%s' without IP address\n", reg->username);
       /* Setup the next registration attempt */
       reg->expire = iax2_sched_replace(reg->expire, sched,
          (5 * reg->refresh / 6) * 1000, iax2_do_register_s, reg);
       return -1;
    }
    if (!ast_sockaddr_port(&reg->addr) && reg->port) {
       ast_sockaddr_set_port(&reg->addr, reg->port);
    }
 
    if (!reg->callno) {
 
       ast_debug(3, "Allocate call number\n");
 
       reg->callno = find_callno_locked(0, 0, &reg->addr, NEW_FORCE, defaultsockfd, 0);
       if (reg->callno < 1) {
          ast_log(LOG_WARNING, "Unable to create call for registration\n");
          return -1;
       } else
          ast_debug(3, "Registration created on call %d\n", reg->callno);
       iaxs[reg->callno]->reg = reg;
       ast_mutex_unlock(&iaxsl[reg->callno]);
    }
    /* Setup the next registration a little early */
    reg->expire = iax2_sched_replace(reg->expire, sched,
       (5 * reg->refresh / 6) * 1000, iax2_do_register_s, reg);
    /* Send the request */
    memset(&ied, 0, sizeof(ied));
    iax_ie_append_str(&ied, IAX_IE_USERNAME, reg->username);
    iax_ie_append_short(&ied, IAX_IE_REFRESH, reg->refresh);
    add_empty_calltoken_ie(iaxs[reg->callno], &ied); /* this _MUST_ be the last ie added */
    send_command(iaxs[reg->callno],AST_FRAME_IAX, IAX_COMMAND_REGREQ, 0, ied.buf, ied.pos, -1);
    reg->regstate = REG_STATE_REGSENT;
    return 0;
 }

◆ iax2_do_register_s()

static int iax2_do_register_s ( const void * data )

static

Definition at line 8559 of file chan_iax2.c.

References __iax2_do_register_s(), and schedule_action.

Referenced by iax2_ack_registry(), and iax2_do_register().

 {
 #ifdef SCHED_MULTITHREADED
    if (schedule_action(__iax2_do_register_s, data))
 #endif
       __iax2_do_register_s(data);
    return 0;
 }

◆ iax2_dprequest()

static void iax2_dprequest	(	struct iax2_dpcache *	dp,
		int	callno
	)

static

Definition at line 9361 of file chan_iax2.c.

References AST_FRAME_IAX, auto_hangup(), chan_iax2_pvt::autoid, iax_ie_data::buf, CACHE_FLAG_TRANSMITTED, iax2_dpcache::exten, iax2_dpcache::flags, iax2_sched_replace(), IAX_COMMAND_DPREQ, iax_ie_append_str(), IAX_IE_CALLED_NUMBER, iax_ie_data::pos, and send_command().

Referenced by find_cache(), and socket_process_helper().

 {
    struct iax_ie_data ied;
    /* Auto-hangup with 30 seconds of inactivity */
    iaxs[callno]->autoid = iax2_sched_replace(iaxs[callno]->autoid,
       sched, 30000, auto_hangup, (void *)(long)callno);
    memset(&ied, 0, sizeof(ied));
    iax_ie_append_str(&ied, IAX_IE_CALLED_NUMBER, dp->exten);
    send_command(iaxs[callno], AST_FRAME_IAX, IAX_COMMAND_DPREQ, 0, ied.buf, ied.pos, -1);
    dp->flags |= CACHE_FLAG_TRANSMITTED;
 }

◆ iax2_dup_variable_datastore()

static void * iax2_dup_variable_datastore ( void * old )

static

Definition at line 1529 of file chan_iax2.c.

References ast_calloc, AST_LIST_HEAD, AST_LIST_HEAD_INIT, AST_LIST_INSERT_TAIL, AST_LIST_LOCK, AST_LIST_TRAVERSE, AST_LIST_UNLOCK, ast_log, ast_var_assign, ast_var_name(), ast_var_value(), ast_var_t::entries, LOG_ERROR, and NULL.

Referenced by jb_debug_output().

 {
    AST_LIST_HEAD(, ast_var_t) *oldlist = old, *newlist;
    struct ast_var_t *oldvar, *newvar;
 
    newlist = ast_calloc(sizeof(*newlist), 1);
    if (!newlist) {
       ast_log(LOG_ERROR, "Unable to duplicate iax2 variables\n");
       return NULL;
    }
 
    AST_LIST_HEAD_INIT(newlist);
    AST_LIST_LOCK(oldlist);
    AST_LIST_TRAVERSE(oldlist, oldvar, entries) {
       newvar = ast_var_assign(ast_var_name(oldvar), ast_var_value(oldvar));
       if (newvar)
          AST_LIST_INSERT_TAIL(newlist, newvar, entries);
       else
          ast_log(LOG_ERROR, "Unable to duplicate iax2 variable '%s'\n", ast_var_name(oldvar));
    }
    AST_LIST_UNLOCK(oldlist);
    return newlist;
 }

◆ iax2_exec()

static int iax2_exec	(	struct ast_channel *	chan,
		const char *	context,
		const char *	exten,
		int	priority,
		const char *	callerid,
		const char *	data
	)

static

Execute IAX2 dialplan switch.

Definition at line 14339 of file chan_iax2.c.

References ast_copy_string(), AST_LIST_LOCK, AST_LIST_UNLOCK, ast_log, AST_MAX_CONTEXT, AST_MAX_EXTENSION, ast_verb, CACHE_FLAG_EXISTS, find_cache(), iax2_dpcache::flags, LOG_NOTICE, LOG_WARNING, NULL, pbx_builtin_getvar_helper(), pbx_exec(), and pbx_findapp().

 {
    char odata[256];
    char req[sizeof(odata) + AST_MAX_CONTEXT + AST_MAX_EXTENSION + sizeof("IAX2//@")];
    char *ncontext;
    struct iax2_dpcache *dp = NULL;
    struct ast_app *dial = NULL;
 #if 0
    ast_log(LOG_NOTICE, "iax2_exec: con: %s, exten: %s, pri: %d, cid: %s, data: %s, newstack: %d\n", context, exten, priority, callerid ? callerid : "<unknown>", data, newstack);
 #endif
    if (priority == 2) {
       /* Indicate status, can be overridden in dialplan */
       const char *dialstatus = pbx_builtin_getvar_helper(chan, "DIALSTATUS");
       if (dialstatus) {
          dial = pbx_findapp(dialstatus);
          if (dial)
             pbx_exec(chan, dial, "");
       }
       return -1;
    } else if (priority != 1)
       return -1;
 
    AST_LIST_LOCK(&dpcache);
    if ((dp = find_cache(chan, data, context, exten, priority))) {
       if (dp->flags & CACHE_FLAG_EXISTS) {
          ast_copy_string(odata, data, sizeof(odata));
          ncontext = strchr(odata, '/');
          if (ncontext) {
             *ncontext = '\0';
             ncontext++;
             snprintf(req, sizeof(req), "IAX2/%s/%s@%s", odata, exten, ncontext);
          } else {
             snprintf(req, sizeof(req), "IAX2/%s/%s", odata, exten);
          }
          ast_verb(3, "Executing Dial('%s')\n", req);
       } else {
          AST_LIST_UNLOCK(&dpcache);
          ast_log(LOG_WARNING, "Can't execute nonexistent extension '%s[@%s]' in data '%s'\n", exten, context, data);
          return -1;
       }
    }
    AST_LIST_UNLOCK(&dpcache);
 
    if ((dial = pbx_findapp("Dial")))
       return pbx_exec(chan, dial, req);
    else
       ast_log(LOG_WARNING, "No dial application registered\n");
 
    return -1;
 }

◆ iax2_exists()

static int iax2_exists	(	struct ast_channel *	chan,
		const char *	context,
		const char *	exten,
		int	priority,
		const char *	callerid,
		const char *	data
	)

static

Part of the IAX2 switch interface.

Definition at line 14270 of file chan_iax2.c.

References AST_LIST_LOCK, AST_LIST_UNLOCK, ast_log, CACHE_FLAG_EXISTS, find_cache(), iax2_dpcache::flags, LOG_NOTICE, LOG_WARNING, and NULL.

 {
    int res = 0;
    struct iax2_dpcache *dp = NULL;
 #if 0
    ast_log(LOG_NOTICE, "iax2_exists: con: %s, exten: %s, pri: %d, cid: %s, data: %s\n", context, exten, priority, callerid ? callerid : "<unknown>", data);
 #endif
    if ((priority != 1) && (priority != 2))
       return 0;
 
    AST_LIST_LOCK(&dpcache);
    if ((dp = find_cache(chan, data, context, exten, priority))) {
       if (dp->flags & CACHE_FLAG_EXISTS)
          res = 1;
    } else {
       ast_log(LOG_WARNING, "Unable to make DP cache\n");
    }
    AST_LIST_UNLOCK(&dpcache);
 
    return res;
 }

◆ iax2_fixup()

static int iax2_fixup	(	struct ast_channel *	oldchannel,
		struct ast_channel *	newchan
	)

static

Definition at line 4343 of file chan_iax2.c.

References ast_channel_tech_pvt(), ast_log, ast_mutex_lock, ast_mutex_unlock, iax_frame::callno, LOG_WARNING, chan_iax2_pvt::owner, and PTR_TO_CALLNO.

Referenced by jb_debug_output().

 {
    unsigned short callno = PTR_TO_CALLNO(ast_channel_tech_pvt(newchan));
    ast_mutex_lock(&iaxsl[callno]);
    if (iaxs[callno])
       iaxs[callno]->owner = newchan;
    else
       ast_log(LOG_WARNING, "Uh, this isn't a good sign...\n");
    ast_mutex_unlock(&iaxsl[callno]);
    return 0;
 }

◆ iax2_frame_free()

static void iax2_frame_free ( struct iax_frame * fr )

static

Definition at line 2130 of file chan_iax2.c.

References AST_SCHED_DEL, iax_frame_free(), and iax_frame::retrans.

Referenced by __attempt_transmit(), __do_deliver(), __get_from_jb(), complete_transfer(), pvt_destructor(), resend_with_token(), and schedule_delivery().

 {
    AST_SCHED_DEL(sched, fr->retrans);
    iax_frame_free(fr);
 }

◆ iax2_free_variable_datastore()

static void iax2_free_variable_datastore ( void * old )

static

Definition at line 1553 of file chan_iax2.c.

References ast_free, AST_LIST_HEAD, AST_LIST_HEAD_DESTROY, AST_LIST_LOCK, AST_LIST_REMOVE_HEAD, AST_LIST_UNLOCK, and ast_var_t::entries.

Referenced by jb_debug_output().

 {
    AST_LIST_HEAD(, ast_var_t) *oldlist = old;
    struct ast_var_t *oldvar;
 
    AST_LIST_LOCK(oldlist);
    while ((oldvar = AST_LIST_REMOVE_HEAD(oldlist, entries))) {
       ast_free(oldvar);
    }
    AST_LIST_UNLOCK(oldlist);
    AST_LIST_HEAD_DESTROY(oldlist);
    ast_free(oldlist);
 }

◆ iax2_getformatname()

const char* iax2_getformatname ( iax2_format format )

iax2 wrapper function for ast_getformatname

Definition at line 1903 of file chan_iax2.c.

References ast_format_compatibility_bitfield2format(), and ast_format_get_name().

Referenced by dump_versioned_codec(), handle_cli_iax2_show_channels(), iax_show_provisioning(), and socket_process_helper().

 {
    struct ast_format *tmpfmt;
 
    tmpfmt = ast_format_compatibility_bitfield2format(format);
    if (!tmpfmt) {
       return "Unknown";
    }
 
    return ast_format_get_name(tmpfmt);
 }

◆ iax2_getformatname_multiple()

static const char* iax2_getformatname_multiple	(	iax2_format	format,
		struct ast_str **	codec_buf
	)

static

Definition at line 1915 of file chan_iax2.c.

References ao2_ref, ast_format_cap_alloc, AST_FORMAT_CAP_FLAG_DEFAULT, ast_format_cap_get_names(), ast_str_buffer(), and iax2_format_compatibility_bitfield2cap().

Referenced by function_iaxpeer(), handle_cli_iax2_show_peer(), and socket_process_helper().

 {
    struct ast_format_cap *cap = ast_format_cap_alloc(AST_FORMAT_CAP_FLAG_DEFAULT);
 
    if (!cap) {
       return "(Nothing)";
    }
    iax2_format_compatibility_bitfield2cap(format, cap);
    ast_format_cap_get_names(cap, codec_buf);
    ao2_ref(cap, -1);
 
    return ast_str_buffer(*codec_buf);
 }

◆ iax2_getpeername()

static int iax2_getpeername	(	struct ast_sockaddr	addr,
		char *	host,
		int	len
	)

static

Definition at line 2045 of file chan_iax2.c.

References iax2_peer::addr, ao2_iterator_destroy(), ao2_iterator_init(), ao2_iterator_next, ast_copy_string(), ast_sockaddr_cmp(), iax2_peer::name, NULL, peer_unref(), and realtime_peer().

Referenced by __find_callno().

 {
    struct iax2_peer *peer = NULL;
    int res = 0;
    struct ao2_iterator i;
 
    i = ao2_iterator_init(peers, 0);
    while ((peer = ao2_iterator_next(&i))) {
 
       if (!ast_sockaddr_cmp(&peer->addr, &addr)) {
          ast_copy_string(host, peer->name, len);
          peer_unref(peer);
          res = 1;
          break;
       }
       peer_unref(peer);
    }
    ao2_iterator_destroy(&i);
 
    if (!peer) {
       peer = realtime_peer(NULL, &addr);
       if (peer) {
          ast_copy_string(host, peer->name, len);
          peer_unref(peer);
          res = 1;
       }
    }
 
    return res;
 }

◆ iax2_getpeertrunk()

static int iax2_getpeertrunk ( struct ast_sockaddr addr )

static

Definition at line 5807 of file chan_iax2.c.

References iax2_peer::addr, ao2_iterator_destroy(), ao2_iterator_init(), ao2_iterator_next, ast_sockaddr_cmp(), ast_test_flag64, IAX_TRUNK, and peer_unref().

Referenced by check_access().

 {
    struct iax2_peer *peer;
    int res = 0;
    struct ao2_iterator i;
 
    i = ao2_iterator_init(peers, 0);
    while ((peer = ao2_iterator_next(&i))) {
 
       if (!ast_sockaddr_cmp(&peer->addr, &addr)) {
          res = ast_test_flag64(peer, IAX_TRUNK);
          peer_unref(peer);
          break;
       }
       peer_unref(peer);
    }
    ao2_iterator_destroy(&i);
 
    return res;
 }

◆ iax2_hangup()

static int iax2_hangup ( struct ast_channel * c )

static

Definition at line 5300 of file chan_iax2.c.

References ast_channel_hangupcause(), ast_channel_name(), ast_channel_tech_pvt(), ast_channel_tech_pvt_set(), ast_debug, AST_FRAME_IAX, ast_log, ast_mutex_lock, ast_mutex_unlock, ast_sched_add(), ast_test_flag64, ast_verb, iax_ie_data::buf, CALLNO_TO_PTR, iax2_destroy(), iax2_predestroy(), IAX_ALREADYGONE, IAX_COMMAND_HANGUP, iax_ie_append_byte(), IAX_IE_CAUSECODE, LOG_ERROR, LOG_WARNING, NULL, iax_ie_data::pos, PTR_TO_CALLNO, scheduled_destroy(), and send_command_final().

Referenced by jb_debug_output().

 {
    unsigned short callno = PTR_TO_CALLNO(ast_channel_tech_pvt(c));
    struct iax_ie_data ied;
    int alreadygone;
    memset(&ied, 0, sizeof(ied));
    ast_mutex_lock(&iaxsl[callno]);
    if (callno && iaxs[callno]) {
       ast_debug(1, "We're hanging up %s now...\n", ast_channel_name(c));
       alreadygone = ast_test_flag64(iaxs[callno], IAX_ALREADYGONE);
       /* Send the hangup unless we have had a transmission error or are already gone */
       iax_ie_append_byte(&ied, IAX_IE_CAUSECODE, (unsigned char)ast_channel_hangupcause(c));
       if (!iaxs[callno]->error && !alreadygone) {
          if (send_command_final(iaxs[callno], AST_FRAME_IAX, IAX_COMMAND_HANGUP, 0, ied.buf, ied.pos, -1)) {
             ast_log(LOG_WARNING, "No final packet could be sent for callno %d\n", callno);
          }
          if (!iaxs[callno]) {
             ast_mutex_unlock(&iaxsl[callno]);
             return 0;
          }
       }
       /* Explicitly predestroy it */
       iax2_predestroy(callno);
       /* If we were already gone to begin with, destroy us now */
       if (iaxs[callno] && alreadygone) {
          ast_debug(1, "Really destroying %s now...\n", ast_channel_name(c));
          iax2_destroy(callno);
       } else if (iaxs[callno]) {
          if (ast_sched_add(sched, 10000, scheduled_destroy, CALLNO_TO_PTR(callno)) < 0) {
             ast_log(LOG_ERROR, "Unable to schedule iax2 callno %d destruction?!!  Destroying immediately.\n", callno);
             iax2_destroy(callno);
          }
       }
    } else if (ast_channel_tech_pvt(c)) {
       /* If this call no longer exists, but the channel still
        * references it we need to set the channel's tech_pvt to null
        * to avoid ast_channel_free() trying to free it.
        */
       ast_channel_tech_pvt_set(c, NULL);
    }
    ast_mutex_unlock(&iaxsl[callno]);
    ast_verb(3, "Hungup '%s'\n", ast_channel_name(c));
    return 0;
 }

◆ iax2_indicate()

static int iax2_indicate	(	struct ast_channel *	c,
		int	condition,
		const void *	data,
		size_t	datalen
	)

static

Definition at line 5734 of file chan_iax2.c.

References ast_channel_tech_pvt(), AST_CONTROL_CONNECTED_LINE, AST_CONTROL_HOLD, AST_CONTROL_MASQUERADE_NOTIFY, AST_CONTROL_PVT_CAUSE_CODE, AST_CONTROL_REDIRECTING, AST_CONTROL_UNHOLD, ast_debug, AST_FRAME_CONTROL, ast_moh_start(), ast_moh_stop(), ast_mutex_lock, ast_mutex_unlock, ast_test_flag64, chan_iax2_pvt::callno, done, IAX_SENDCONNECTEDLINE, iaxdebug, chan_iax2_pvt::mohinterpret, PTR_TO_CALLNO, send_command(), and wait_for_peercallno().

Referenced by jb_debug_output().

 {
    unsigned short callno = PTR_TO_CALLNO(ast_channel_tech_pvt(c));
    struct chan_iax2_pvt *pvt;
    int res = 0;
 
    if (iaxdebug)
       ast_debug(1, "Indicating condition %d\n", condition);
 
    ast_mutex_lock(&iaxsl[callno]);
    pvt = iaxs[callno];
 
    if (wait_for_peercallno(pvt)) {
       res = -1;
       goto done;
    }
 
    switch (condition) {
    case AST_CONTROL_HOLD:
       if (strcasecmp(pvt->mohinterpret, "passthrough")) {
          ast_moh_start(c, data, pvt->mohinterpret);
          goto done;
       }
       break;
    case AST_CONTROL_UNHOLD:
       if (strcasecmp(pvt->mohinterpret, "passthrough")) {
          ast_moh_stop(c);
          goto done;
       }
       break;
    case AST_CONTROL_CONNECTED_LINE:
    case AST_CONTROL_REDIRECTING:
       if (!ast_test_flag64(pvt, IAX_SENDCONNECTEDLINE)) {
          /* We are not configured to allow sending these updates. */
          ast_debug(2, "Callno %d: Config blocked sending control frame %d.\n",
             callno, condition);
          goto done;
       }
       break;
    case AST_CONTROL_PVT_CAUSE_CODE:
    case AST_CONTROL_MASQUERADE_NOTIFY:
       res = -1;
       goto done;
    }
 
    res = send_command(pvt, AST_FRAME_CONTROL, condition, 0, data, datalen, -1);
 
 done:
    ast_mutex_unlock(&iaxsl[callno]);
 
    return res;
 }

◆ iax2_is_control_frame_allowed()

static int iax2_is_control_frame_allowed ( int subtype )

static

Definition at line 1359 of file chan_iax2.c.

References _XXX_AST_CONTROL_T38, AST_CONTROL_ANSWER, AST_CONTROL_AOC, AST_CONTROL_BUSY, AST_CONTROL_CC, AST_CONTROL_CONGESTION, AST_CONTROL_CONNECTED_LINE, AST_CONTROL_END_OF_Q, AST_CONTROL_FLASH, AST_CONTROL_HANGUP, AST_CONTROL_HOLD, AST_CONTROL_INCOMPLETE, AST_CONTROL_MASQUERADE_NOTIFY, AST_CONTROL_MCID, AST_CONTROL_OFFHOOK, AST_CONTROL_OPTION, AST_CONTROL_PROCEEDING, AST_CONTROL_PROGRESS, AST_CONTROL_PVT_CAUSE_CODE, AST_CONTROL_RADIO_KEY, AST_CONTROL_RADIO_UNKEY, AST_CONTROL_READ_ACTION, AST_CONTROL_RECORD_CANCEL, AST_CONTROL_RECORD_MUTE, AST_CONTROL_RECORD_STOP, AST_CONTROL_RECORD_SUSPEND, AST_CONTROL_REDIRECTING, AST_CONTROL_RING, AST_CONTROL_RINGING, AST_CONTROL_SRCCHANGE, AST_CONTROL_SRCUPDATE, AST_CONTROL_STREAM_FORWARD, AST_CONTROL_STREAM_RESTART, AST_CONTROL_STREAM_REVERSE, AST_CONTROL_STREAM_STOP, AST_CONTROL_STREAM_SUSPEND, AST_CONTROL_STREAM_TOPOLOGY_CHANGED, AST_CONTROL_STREAM_TOPOLOGY_REQUEST_CHANGE, AST_CONTROL_STREAM_TOPOLOGY_SOURCE_CHANGED, AST_CONTROL_T38_PARAMETERS, AST_CONTROL_TAKEOFFHOOK, AST_CONTROL_TRANSFER, AST_CONTROL_UNHOLD, AST_CONTROL_UPDATE_RTP_PEER, AST_CONTROL_VIDUPDATE, and AST_CONTROL_WINK.

Referenced by send_command(), and socket_process_helper().

 {
    enum ast_control_frame_type control = subtype;
    int is_allowed;
 
    /*
     * Note: If we compare the enumeration type, which does not have any
     * negative constants, the compiler may optimize this code away.
     * Therefore, we must perform an integer comparison here.
     */
    if (subtype == -1) {
       return -1;
    }
 
    /* Default to not allowing control frames to pass. */
    is_allowed = 0;
 
    /*
     * The switch default is not present in order to take advantage
     * of the compiler complaining of a missing enum case.
     */
    switch (control) {
    /*
     * These control frames make sense to send/receive across the link.
     */
    case AST_CONTROL_HANGUP:
    case AST_CONTROL_RING:
    case AST_CONTROL_RINGING:
    case AST_CONTROL_ANSWER:
    case AST_CONTROL_BUSY:
    case AST_CONTROL_TAKEOFFHOOK:
    case AST_CONTROL_OFFHOOK:
    case AST_CONTROL_CONGESTION:
    case AST_CONTROL_FLASH:
    case AST_CONTROL_WINK:
    case AST_CONTROL_OPTION:
    case AST_CONTROL_RADIO_KEY:
    case AST_CONTROL_RADIO_UNKEY:
    case AST_CONTROL_PROGRESS:
    case AST_CONTROL_PROCEEDING:
    case AST_CONTROL_HOLD:
    case AST_CONTROL_UNHOLD:
    case AST_CONTROL_VIDUPDATE:
    case AST_CONTROL_CONNECTED_LINE:
    case AST_CONTROL_REDIRECTING:
    case AST_CONTROL_T38_PARAMETERS:
    case AST_CONTROL_AOC:
    case AST_CONTROL_INCOMPLETE:
    case AST_CONTROL_MCID:
       is_allowed = -1;
       break;
 
    /*
     * These control frames do not make sense to send/receive across the link.
     */
    case _XXX_AST_CONTROL_T38:
       /* The control value is deprecated in favor of AST_CONTROL_T38_PARAMETERS. */
    case AST_CONTROL_SRCUPDATE:
       /* Across an IAX link the source is still the same. */
    case AST_CONTROL_TRANSFER:
       /* A success/fail status report from calling ast_transfer() on this machine. */
    case AST_CONTROL_CC:
       /* The payload contains pointers that are valid for the sending machine only. */
    case AST_CONTROL_SRCCHANGE:
       /* Across an IAX link the source is still the same. */
    case AST_CONTROL_READ_ACTION:
       /* The action can only be done by the sending machine. */
    case AST_CONTROL_END_OF_Q:
       /* This frame would cause the call to unexpectedly hangup. */
    case AST_CONTROL_UPDATE_RTP_PEER:
       /* Only meaningful across a bridge on this machine for direct-media exchange. */
    case AST_CONTROL_PVT_CAUSE_CODE:
       /* Intended only for the sending machine's local channel structure. */
    case AST_CONTROL_MASQUERADE_NOTIFY:
       /* Intended only for masquerades when calling ast_indicate_data(). */
    case AST_CONTROL_STREAM_TOPOLOGY_REQUEST_CHANGE:
       /* Intended only for internal stream topology manipulation. */
    case AST_CONTROL_STREAM_TOPOLOGY_CHANGED:
       /* Intended only for internal stream topology change notification. */
    case AST_CONTROL_STREAM_TOPOLOGY_SOURCE_CHANGED:
    case AST_CONTROL_STREAM_STOP:
    case AST_CONTROL_STREAM_SUSPEND:
    case AST_CONTROL_STREAM_RESTART:
    case AST_CONTROL_STREAM_REVERSE:
    case AST_CONTROL_STREAM_FORWARD:
       /* None of these playback stream control frames should go across the link. */
    case AST_CONTROL_RECORD_CANCEL:
    case AST_CONTROL_RECORD_STOP:
    case AST_CONTROL_RECORD_SUSPEND:
    case AST_CONTROL_RECORD_MUTE:
       /* None of these media recording control frames should go across the link. */
       break;
    }
    return is_allowed;
 }

◆ iax2_key_rotate()

static int iax2_key_rotate ( const void * vpvt )

static

Definition at line 5462 of file chan_iax2.c.

References AST_BRIDGE_COMPLETE, AST_BRIDGE_DTMF_CHANNEL_0, AST_BRIDGE_DTMF_CHANNEL_1, AST_BRIDGE_FAILED, AST_BRIDGE_FAILED_NOWARN, AST_BRIDGE_RETRY, ast_channel_hangupcause_hash_set(), ast_channel_nativeformats(), ast_channel_softhangup_internal_flag_add(), ast_channel_tech(), ast_channel_tech_pvt(), ast_check_hangup(), AST_CONTROL_PVT_CAUSE_CODE, AST_CONTROL_SRCCHANGE, AST_CONTROL_SRCUPDATE, AST_CONTROL_T38_PARAMETERS, AST_CONTROL_VIDUPDATE, ast_debug, ast_format_cap_get_names(), ast_format_cap_identical(), AST_FORMAT_CAP_NAMES_LEN, AST_FRAME_CONTROL, AST_FRAME_DTMF, AST_FRAME_IAX, AST_FRAME_IMAGE, AST_FRAME_TEXT, AST_FRAME_VIDEO, AST_FRAME_VOICE, ast_frfree, ast_log, ast_mutex_lock, ast_mutex_trylock, ast_mutex_unlock, ast_random(), ast_read(), ast_sched_add(), ast_set_flag64, AST_SOFTHANGUP_DEV, ast_str_alloca, ast_test_flag64, ast_tvnow(), ast_tvzero(), ast_verb, ast_waitfor_n(), ast_write(), chan_iax2_pvt::bridgecallno, iax_ie_data::buf, build_ecx_key(), chan_iax2_pvt::callno, ast_frame::data, ast_frame::datalen, DEADLOCK_AVOIDANCE, ast_frame::frametype, IAX_CALLENCRYPTED, IAX_COMMAND_RTKEY, IAX_COMMAND_TXREQ, IAX_DEBUGDIGEST, IAX_IE_APPARENT_ADDR, iax_ie_append_addr(), iax_ie_append_int(), iax_ie_append_raw(), iax_ie_append_short(), IAX_IE_CALLNO, IAX_IE_CHALLENGE, IAX_IE_TRANSFERID, IAX_LINGER_TIMEOUT, IAX_NOTRANSFER, IAX_TRANSFERMEDIA, ast_frame_subclass::integer, chan_iax2_pvt::keyrotateid, LOG_WARNING, MD5Final(), MD5Init(), MD5Update(), NULL, iax_ie_data::pos, ast_frame::ptr, PTR_TO_CALLNO, send_command(), ast_frame::subclass, TRANSFER_BEGIN, TRANSFER_MBEGIN, TRANSFER_RELEASED, and chan_iax2_pvt::transferring.

Referenced by iax2_send().

 {
    int res = 0;
    struct chan_iax2_pvt *pvt = (void *) vpvt;
    struct MD5Context md5;
    char key[17] = "";
    struct iax_ie_data ied = {
       .pos = 0,
    };
 
    ast_mutex_lock(&iaxsl[pvt->callno]);
    pvt->keyrotateid = ast_sched_add(sched, 120000 + (ast_random() % 180001), iax2_key_rotate, vpvt);
 
    snprintf(key, sizeof(key), "%lX", (unsigned long)ast_random());
 
    MD5Init(&md5);
    MD5Update(&md5, (unsigned char *) key, strlen(key));
    MD5Final((unsigned char *) key, &md5);
 
    IAX_DEBUGDIGEST("Sending", key);
 
    iax_ie_append_raw(&ied, IAX_IE_CHALLENGE, key, 16);
 
    res = send_command(pvt, AST_FRAME_IAX, IAX_COMMAND_RTKEY, 0, ied.buf, ied.pos, -1);
 
    build_ecx_key((unsigned char *) key, pvt);
 
    ast_mutex_unlock(&iaxsl[pvt->callno]);
 
    return res;
 }

◆ iax2_lock_callno_unless_destroyed()

static int iax2_lock_callno_unless_destroyed ( int callno )

static

Definition at line 1698 of file chan_iax2.c.

References ast_debug, ast_mutex_lock, ast_mutex_unlock, and send_ping().

Referenced by __send_lagrq(), and __send_ping().

 {
    ast_mutex_lock(&iaxsl[callno]);
 
    /* We acquired the lock; but the call was already destroyed (we came after full hang up procedures)
     * or destroy initiated (in middle of hang up procedure. */
    if (!iaxs[callno] || iaxs[callno]->destroy_initiated) {
       ast_debug(3, "I wanted to lock callno %d, but it is dead or going to die.\n", callno);
       ast_mutex_unlock(&iaxsl[callno]);
       return 0;
    }
 
    /* Lock acquired, and callno is alive and kicking. */
    return 1;
 }

◆ iax2_lock_owner()

static void iax2_lock_owner ( int callno )

static

Definition at line 1335 of file chan_iax2.c.

References ast_channel_trylock, and DEADLOCK_AVOIDANCE.

Referenced by iax2_queue_frame(), iax2_queue_hangup(), iax2_queue_hold(), iax2_queue_unhold(), set_hangup_source_and_cause(), and socket_process_helper().

 {
    for (;;) {
       if (!iaxs[callno] || !iaxs[callno]->owner) {
          /* There is no owner lock to get. */
          break;
       }
       if (!ast_channel_trylock(iaxs[callno]->owner)) {
          /* We got the lock */
          break;
       }
       /* Avoid deadlock by pausing and trying again */
       DEADLOCK_AVOIDANCE(&iaxsl[callno]);
    }
 }

◆ iax2_matchmore()

static int iax2_matchmore	(	struct ast_channel *	chan,
		const char *	context,
		const char *	exten,
		int	priority,
		const char *	callerid,
		const char *	data
	)

static

Part of the IAX2 Switch interface.

Definition at line 14316 of file chan_iax2.c.

References AST_LIST_LOCK, AST_LIST_UNLOCK, ast_log, CACHE_FLAG_MATCHMORE, find_cache(), iax2_dpcache::flags, LOG_NOTICE, LOG_WARNING, and NULL.

 {
    int res = 0;
    struct iax2_dpcache *dp = NULL;
 #if 0
    ast_log(LOG_NOTICE, "iax2_matchmore: con: %s, exten: %s, pri: %d, cid: %s, data: %s\n", context, exten, priority, callerid ? callerid : "<unknown>", data);
 #endif
    if ((priority != 1) && (priority != 2))
       return 0;
 
    AST_LIST_LOCK(&dpcache);
    if ((dp = find_cache(chan, data, context, exten, priority))) {
       if (dp->flags & CACHE_FLAG_MATCHMORE)
          res = 1;
    } else {
       ast_log(LOG_WARNING, "Unable to make DP cache\n");
    }
    AST_LIST_UNLOCK(&dpcache);
 
    return res;
 }

◆ iax2_parse_allow_disallow()

static int iax2_parse_allow_disallow	(	struct iax2_codec_pref *	pref,
		iax2_format *	formats,
		const char *	list,
		int	allowing
	)

static

Definition at line 1929 of file chan_iax2.c.

References ao2_cleanup, ao2_ref, ast_format_cap_alloc, ast_format_cap_count(), AST_FORMAT_CAP_FLAG_DEFAULT, ast_format_cap_get_format(), ast_format_cap_get_format_framing(), ast_format_cap_update_by_allow_disallow(), iax2_codec_pref_append(), iax2_codec_pref_remove_missing(), iax2_codec_pref_to_cap(), and iax2_format_compatibility_cap2bitfield().

Referenced by build_peer(), build_user(), and set_config().

 {
    int res, i;
    struct ast_format_cap *cap;
 
    /* We want to add the formats to the cap in the preferred order */
    cap = ast_format_cap_alloc(AST_FORMAT_CAP_FLAG_DEFAULT);
    if (!cap || iax2_codec_pref_to_cap(pref, cap)) {
       ao2_cleanup(cap);
       return 1;
    }
 
    res = ast_format_cap_update_by_allow_disallow(cap, list, allowing);
 
    /* Adjust formats bitfield and pref list to match. */
    *formats = iax2_format_compatibility_cap2bitfield(cap);
    iax2_codec_pref_remove_missing(pref, *formats);
 
    for (i = 0; i < ast_format_cap_count(cap); i++) {
       struct ast_format *fmt = ast_format_cap_get_format(cap, i);
 
       iax2_codec_pref_append(pref, fmt, ast_format_cap_get_format_framing(cap, fmt));
       ao2_ref(fmt, -1);
    }
 
    ao2_ref(cap, -1);
 
    return res;
 }

◆ iax2_poke_noanswer()

static int iax2_poke_noanswer ( const void * data )

static

Definition at line 12346 of file chan_iax2.c.

References __iax2_poke_noanswer(), peer_unref(), iax2_peer::pokeexpire, and schedule_action.

Referenced by iax2_poke_peer().

 {
    struct iax2_peer *peer = (struct iax2_peer *)data;
    peer->pokeexpire = -1;
 #ifdef SCHED_MULTITHREADED
    if (schedule_action(__iax2_poke_noanswer, data))
 #endif
       __iax2_poke_noanswer(data);
    peer_unref(peer);
    return 0;
 }

◆ iax2_poke_peer()

static int iax2_poke_peer	(	struct iax2_peer *	peer,
		int	heldcall
	)

static

Definition at line 12367 of file chan_iax2.c.

References add_empty_calltoken_ie(), iax2_peer::addr, AST_FRAME_IAX, ast_log, ast_mutex_lock, ast_mutex_unlock, AST_SCHED_DEL, ast_sockaddr_isnull(), iax_ie_data::buf, iax2_peer::callno, iax2_peer::dnsmgr, find_callno(), iax2_peer::historicms, iax2_destroy(), iax2_poke_noanswer(), iax2_sched_add(), IAX_COMMAND_POKE, iax2_peer::lastms, LOG_NOTICE, LOG_WARNING, MAX_RETRY_TIME, iax2_peer::maxms, MIN, iax2_peer::name, NEW_FORCE, peer_ref(), peer_unref(), chan_iax2_pvt::peerpoke, chan_iax2_pvt::pingtime, iax2_peer::pokeexpire, iax2_peer::pokefreqnotok, iax2_peer::pokefreqok, iax_ie_data::pos, send_command(), and iax2_peer::sockfd.

Referenced by __iax2_poke_peer_s(), iax2_poke_peer_cb(), jb_debug_output(), poke_all_peers(), reg_source_db(), and update_registry().

 {
    int callno;
    int poke_timeout;
 
    if (!peer->maxms || (ast_sockaddr_isnull(&peer->addr) && !peer->dnsmgr)) {
       /* IF we have no IP without dnsmgr, or this isn't to be monitored, return
         immediately after clearing things out */
       peer->lastms = 0;
       peer->historicms = 0;
       peer->pokeexpire = -1;
       peer->callno = 0;
       return 0;
    }
 
    /* The peer could change the callno inside iax2_destroy, since we do deadlock avoidance */
    if ((callno = peer->callno) > 0) {
       ast_log(LOG_NOTICE, "Still have a callno...\n");
       ast_mutex_lock(&iaxsl[callno]);
       iax2_destroy(callno);
       ast_mutex_unlock(&iaxsl[callno]);
    }
    if (heldcall)
       ast_mutex_unlock(&iaxsl[heldcall]);
    callno = peer->callno = find_callno(0, 0, &peer->addr, NEW_FORCE, peer->sockfd, 0);
    if (heldcall)
       ast_mutex_lock(&iaxsl[heldcall]);
    if (callno < 1) {
       ast_log(LOG_WARNING, "Unable to allocate call for poking peer '%s'\n", peer->name);
       return -1;
    }
 
    if (peer->pokeexpire > -1) {
       if (!AST_SCHED_DEL(sched, peer->pokeexpire)) {
          peer->pokeexpire = -1;
          peer_unref(peer);
       }
    }
 
    if (peer->lastms < 0){
       /* If the host is already unreachable then use time less than the unreachable
        * interval. 5/6 is arbitrary multiplier to get value less than
        * peer->pokefreqnotok. Value less than peer->pokefreqnotok is used to expire
        * current POKE before starting new POKE (which is scheduled after
        * peer->pokefreqnotok). */
       poke_timeout = peer->pokefreqnotok * 5  / 6;
    } else {
       /* If the host is reachable, use timeout large enough to allow for multiple
        * POKE retries. Limit this value to less than peer->pokefreqok. 5/6 is arbitrary
        * multiplier to get value less than peer->pokefreqok. Value less than
        * peer->pokefreqok is used to expire current POKE before starting new POKE
        * (which is scheduled after peer->pokefreqok). */
       poke_timeout = MIN(MAX_RETRY_TIME * 2 + peer->maxms, peer->pokefreqok * 5  / 6);
    }
 
    /* Queue up a new task to handle no reply */
    peer->pokeexpire = iax2_sched_add(sched, poke_timeout, iax2_poke_noanswer, peer_ref(peer));
 
    if (peer->pokeexpire == -1)
       peer_unref(peer);
 
    /* And send the poke */
    ast_mutex_lock(&iaxsl[callno]);
    if (iaxs[callno]) {
       struct iax_ie_data ied = {
          .buf = { 0 },
          .pos = 0,
       };
 
       /* Speed up retransmission times for this qualify call */
       iaxs[callno]->pingtime = peer->maxms / 8;
       iaxs[callno]->peerpoke = peer;
 
       add_empty_calltoken_ie(iaxs[callno], &ied); /* this _MUST_ be the last ie added */
       send_command(iaxs[callno], AST_FRAME_IAX, IAX_COMMAND_POKE, 0, ied.buf, ied.pos, -1);
    }
    ast_mutex_unlock(&iaxsl[callno]);
 
    return 0;
 }

◆ iax2_poke_peer_cb()

static int iax2_poke_peer_cb	(	void *	obj,
		void *	arg,
		int	flags
	)

static

Definition at line 12358 of file chan_iax2.c.

References iax2_poke_peer().

Referenced by load_module().

 {
    struct iax2_peer *peer = obj;
 
    iax2_poke_peer(peer, 0);
 
    return 0;
 }

◆ iax2_poke_peer_s()

static int iax2_poke_peer_s ( const void * data )

static

Definition at line 9398 of file chan_iax2.c.

References __iax2_poke_peer_s(), iax2_peer::pokeexpire, and schedule_action.

Referenced by __iax2_poke_noanswer(), and socket_process_helper().

 {
    struct iax2_peer *peer = (struct iax2_peer *)data;
    peer->pokeexpire = -1;
 #ifdef SCHED_MULTITHREADED
    if (schedule_action(__iax2_poke_peer_s, data))
 #endif
       __iax2_poke_peer_s(data);
    return 0;
 }

◆ iax2_predestroy()

static int iax2_predestroy ( int callno )

static

Note: Since this function calls iax2_queue_hangup(), the pvt struct for the given call number may disappear during its execution.

Definition at line 3436 of file chan_iax2.c.

References ast_channel_tech_pvt_set(), ast_module_unref, ast_set_flag64, ast_test_flag64, chan_iax2_pvt::callno, iax2_destroy_helper(), iax2_queue_hangup(), IAX_ALREADYGONE, NULL, chan_iax2_pvt::owner, and ast_module_info::self.

Referenced by iax2_hangup(), and send_command_final().

 {
    struct ast_channel *c = NULL;
    struct chan_iax2_pvt *pvt = iaxs[callno];
 
    if (!pvt)
       return -1;
 
    if (!ast_test_flag64(pvt, IAX_ALREADYGONE)) {
       iax2_destroy_helper(pvt);
       ast_set_flag64(pvt, IAX_ALREADYGONE);
    }
 
    if ((c = pvt->owner)) {
       ast_channel_tech_pvt_set(c, NULL);
       iax2_queue_hangup(callno);
       pvt->owner = NULL;
       ast_module_unref(ast_module_info->self);
    }
 
    return 0;
 }

◆ iax2_process_thread()

static void * iax2_process_thread ( void * data )

static

Note: For some reason, idle threads are exiting without being removed from an idle list, which is causing memory corruption. Forcibly remove it from the list, if it's there.

Definition at line 11990 of file chan_iax2.c.

References iax2_thread::actions, ast_atomic_fetchadd_int(), ast_cond_timedwait, ast_cond_wait, AST_LIST_LOCK, AST_LIST_REMOVE, AST_LIST_UNLOCK, ast_mutex_lock, ast_mutex_unlock, ast_samp2tv(), ast_tvadd(), ast_tvnow(), iax2_thread::checktime, iax2_thread::cond, iax2_thread::curfunc, stasis_subscription::data, handle_deferred_full_frames(), iax2_process_thread_cleanup(), IAX_IOSTATE_IDLE, IAX_IOSTATE_PROCESSING, IAX_IOSTATE_READY, IAX_IOSTATE_SCHEDREADY, IAX_THREAD_TYPE_DYNAMIC, iax2_thread::init_cond, iax2_thread::init_lock, insert_idle_thread(), iax2_thread::iostate, iax2_thread::list, iax2_thread::lock, NULL, iax2_thread::scheddata, iax2_thread::schedfunc, signal_condition(), socket_process(), iax2_thread::stop, and iax2_thread::type.

Referenced by find_idle_thread(), and start_network_thread().

 {
    struct iax2_thread *thread = data;
    struct timeval wait;
    struct timespec ts;
    int put_into_idle = 0;
    int first_time = 1;
    int old_state;
 
    ast_atomic_fetchadd_int(&iaxactivethreadcount, 1);
 
    pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, &old_state);
    pthread_cleanup_push(iax2_process_thread_cleanup, data);
 
    for (;;) {
       /* Wait for something to signal us to be awake */
       ast_mutex_lock(&thread->lock);
 
       if (thread->stop) {
          ast_mutex_unlock(&thread->lock);
          break;
       }
 
       /* Flag that we're ready to accept signals */
       if (first_time) {
          signal_condition(&thread->init_lock, &thread->init_cond);
          first_time = 0;
       }
 
       /* Put into idle list if applicable */
       if (put_into_idle) {
          insert_idle_thread(thread);
       }
 
       if (thread->type == IAX_THREAD_TYPE_DYNAMIC) {
          struct iax2_thread *t = NULL;
          /* Wait to be signalled or time out */
          wait = ast_tvadd(ast_tvnow(), ast_samp2tv(30000, 1000));
          ts.tv_sec = wait.tv_sec;
          ts.tv_nsec = wait.tv_usec * 1000;
          if (ast_cond_timedwait(&thread->cond, &thread->lock, &ts) == ETIMEDOUT) {
             /* This thread was never put back into the available dynamic
              * thread list, so just go away. */
             if (!put_into_idle || thread->stop) {
                ast_mutex_unlock(&thread->lock);
                break;
             }
             AST_LIST_LOCK(&dynamic_list);
             /* Account for the case where this thread is acquired *right* after a timeout */
             if ((t = AST_LIST_REMOVE(&dynamic_list, thread, list)))
                ast_atomic_fetchadd_int(&iaxdynamicthreadcount, -1);
             AST_LIST_UNLOCK(&dynamic_list);
             if (t) {
                /* This dynamic thread timed out waiting for a task and was
                 * not acquired immediately after the timeout,
                 * so it's time to go away. */
                ast_mutex_unlock(&thread->lock);
                break;
             }
             /* Someone grabbed our thread *right* after we timed out.
              * Wait for them to set us up with something to do and signal
              * us to continue. */
             wait = ast_tvadd(ast_tvnow(), ast_samp2tv(30000, 1000));
             ts.tv_sec = wait.tv_sec;
             ts.tv_nsec = wait.tv_usec * 1000;
             if (ast_cond_timedwait(&thread->cond, &thread->lock, &ts) == ETIMEDOUT) {
                ast_mutex_unlock(&thread->lock);
                break;
             }
          }
       } else {
          ast_cond_wait(&thread->cond, &thread->lock);
       }
 
       /* Go back into our respective list */
       put_into_idle = 1;
 
       ast_mutex_unlock(&thread->lock);
 
       if (thread->stop) {
          break;
       }
 
       /* See what we need to do */
       switch (thread->iostate) {
       case IAX_IOSTATE_IDLE:
          continue;
       case IAX_IOSTATE_READY:
          thread->actions++;
          thread->iostate = IAX_IOSTATE_PROCESSING;
          socket_process(thread);
          handle_deferred_full_frames(thread);
          break;
       case IAX_IOSTATE_SCHEDREADY:
          thread->actions++;
          thread->iostate = IAX_IOSTATE_PROCESSING;
 #ifdef SCHED_MULTITHREADED
          thread->schedfunc(thread->scheddata);
 #endif
          break;
       default:
          break;
       }
 
       /* The network thread added us to the active_thread list when we were given
        * frames to process, Now that we are done, we must remove ourselves from
        * the active list, and return to the idle list */
       AST_LIST_LOCK(&active_list);
       AST_LIST_REMOVE(&active_list, thread, list);
       AST_LIST_UNLOCK(&active_list);
 
       /* Make sure another frame didn't sneak in there after we thought we were done. */
       handle_deferred_full_frames(thread);
 
       time(&thread->checktime);
       thread->iostate = IAX_IOSTATE_IDLE;
 #ifdef DEBUG_SCHED_MULTITHREAD
       thread->curfunc[0]='\0';
 #endif
    }
 
    /*!
     * \note For some reason, idle threads are exiting without being
     * removed from an idle list, which is causing memory
     * corruption.  Forcibly remove it from the list, if it's there.
     */
    AST_LIST_LOCK(&idle_list);
    AST_LIST_REMOVE(&idle_list, thread, list);
    AST_LIST_UNLOCK(&idle_list);
 
    AST_LIST_LOCK(&dynamic_list);
    AST_LIST_REMOVE(&dynamic_list, thread, list);
    AST_LIST_UNLOCK(&dynamic_list);
 
    if (!thread->stop) {
       /* Nobody asked me to stop so nobody is waiting to join me. */
       pthread_detach(pthread_self());
    }
 
    /* I am exiting here on my own volition, I need to clean up my own data structures
    * Assume that I am no longer in any of the lists (idle, active, or dynamic)
    */
    pthread_cleanup_pop(1);
    return NULL;
 }

◆ iax2_process_thread_cleanup()

static void iax2_process_thread_cleanup ( void * data )

static

Definition at line 11978 of file chan_iax2.c.

References ast_atomic_dec_and_test(), ast_cond_destroy, ast_free, ast_mutex_destroy, iax2_thread::cond, stasis_subscription::data, iax2_thread::init_cond, iax2_thread::init_lock, and iax2_thread::lock.

Referenced by iax2_process_thread().

 {
    struct iax2_thread *thread = data;
    ast_mutex_destroy(&thread->lock);
    ast_cond_destroy(&thread->cond);
    ast_mutex_destroy(&thread->init_lock);
    ast_cond_destroy(&thread->init_cond);
    ast_free(thread);
    /* Ignore check_return warning from Coverity for ast_atomic_dec_and_test below */
    ast_atomic_dec_and_test(&iaxactivethreadcount);
 }

◆ iax2_provision()

static int iax2_provision	(	struct ast_sockaddr *	end,
		int	sockfd,
		const char *	dest,
		const char *	template,
		int	force
	)

static

Definition at line 12197 of file chan_iax2.c.

References ast_debug, AST_FRAME_IAX, ast_mutex_unlock, ast_set_flag64, ast_sockaddr_copy(), auto_hangup(), chan_iax2_pvt::autoid, iax_ie_data::buf, create_addr(), find_callno_locked(), iax2_sched_replace(), IAX_COMMAND_PROVISION, iax_ie_append_raw(), IAX_IE_PROVISIONING, IAX_PROVISION, iax_provision_build(), NEW_FORCE, NULL, iax_ie_data::pos, send_command(), and create_addr_info::sockfd.

Referenced by check_provisioning(), handle_cli_iax2_provision(), iax2_prov_app(), and jb_debug_output().

 {
    /* Returns 1 if provisioned, -1 if not able to find destination, or 0 if no provisioning
       is found for template */
    struct iax_ie_data provdata;
    struct iax_ie_data ied;
    unsigned int sig;
    struct ast_sockaddr addr;
    int callno;
    struct create_addr_info cai;
 
    memset(&cai, 0, sizeof(cai));
 
    ast_debug(1, "Provisioning '%s' from template '%s'\n", dest, template);
 
    if (iax_provision_build(&provdata, &sig, template, force)) {
       ast_debug(1, "No provisioning found for template '%s'\n", template);
       return 0;
    }
 
    if (end) {
       ast_sockaddr_copy(&addr, end);
       cai.sockfd = sockfd;
    } else if (create_addr(dest, NULL, &addr, &cai))
       return -1;
 
    /* Build the rest of the message */
    memset(&ied, 0, sizeof(ied));
    iax_ie_append_raw(&ied, IAX_IE_PROVISIONING, provdata.buf, provdata.pos);
 
    callno = find_callno_locked(0, 0, &addr, NEW_FORCE, cai.sockfd, 0);
    if (!callno)
       return -1;
 
    if (iaxs[callno]) {
       /* Schedule autodestruct in case they don't ever give us anything back */
       iaxs[callno]->autoid = iax2_sched_replace(iaxs[callno]->autoid,
          sched, 15000, auto_hangup, (void *)(long)callno);
       ast_set_flag64(iaxs[callno], IAX_PROVISION);
       /* Got a call number now, so go ahead and send the provisioning information */
       send_command(iaxs[callno], AST_FRAME_IAX, IAX_COMMAND_PROVISION, 0, ied.buf, ied.pos, -1);
    }
    ast_mutex_unlock(&iaxsl[callno]);
 
    return 1;
 }

◆ iax2_publish_registry()

static void iax2_publish_registry	(	const char *	username,
		const char *	domain,
		const char *	status,
		const char *	cause
	)

static

Definition at line 8710 of file chan_iax2.c.

References ast_system_publish_registry().

Referenced by iax2_ack_registry(), and socket_process_helper().

 {
    ast_system_publish_registry("IAX2", username, domain, status, cause);
 }

◆ iax2_queryoption()

static int iax2_queryoption	(	struct ast_channel *	c,
		int	option,
		void *	data,
		int *	datalen
	)

static

Definition at line 5439 of file chan_iax2.c.

References ast_channel_tech_pvt(), ast_mutex_lock, ast_mutex_unlock, AST_OPTION_SECURE_MEDIA, AST_OPTION_SECURE_SIGNALING, ast_test_flag64, IAX_FORCE_ENCRYPT, and PTR_TO_CALLNO.

Referenced by jb_debug_output().

 {
    switch (option) {
    case AST_OPTION_SECURE_SIGNALING:
    case AST_OPTION_SECURE_MEDIA:
    {
       unsigned short callno = PTR_TO_CALLNO(ast_channel_tech_pvt(c));
       ast_mutex_lock(&iaxsl[callno]);
       *((int *) data) = ast_test_flag64(iaxs[callno], IAX_FORCE_ENCRYPT) ? 1 : 0;
       ast_mutex_unlock(&iaxsl[callno]);
       return 0;
    }
    default:
       return -1;
    }
 }

◆ iax2_queue_frame()

static int iax2_queue_frame	(	int	callno,
		struct ast_frame *	f
	)

static

Queue a frame to a call's owning asterisk channel.

Precondition: This function assumes that iaxsl[callno] is locked when called.

Note: IMPORTANT NOTE!!! Any time this function is used, even if iaxs[callno] was valid before calling it, it may no longer be valid after calling it. This function may unlock and lock the mutex associated with this callno, meaning that another thread may grab it and destroy the call.

Definition at line 3253 of file chan_iax2.c.

References ast_channel_unlock, ast_queue_frame(), and iax2_lock_owner().

Referenced by __attempt_transmit(), __auto_congest(), __do_deliver(), __get_from_jb(), and socket_process_helper().

 {
    iax2_lock_owner(callno);
    if (iaxs[callno] && iaxs[callno]->owner) {
       ast_queue_frame(iaxs[callno]->owner, f);
       ast_channel_unlock(iaxs[callno]->owner);
    }
    return 0;
 }

◆ iax2_queue_hangup()

static int iax2_queue_hangup ( int callno )

static

Queue a hangup frame on the ast_channel owner.

This function queues a hangup frame on the owner of the IAX2 pvt struct that is active for the given call number.

Precondition: Assumes lock for callno is already held.

Note: IMPORTANT NOTE!!! Any time this function is used, even if iaxs[callno] was valid before calling it, it may no longer be valid after calling it. This function may unlock and lock the mutex associated with this callno, meaning that another thread may grab it and destroy the call.

Definition at line 3322 of file chan_iax2.c.

References ast_channel_unlock, ast_queue_hangup(), and iax2_lock_owner().

Referenced by iax2_predestroy().

 {
    iax2_lock_owner(callno);
    if (iaxs[callno] && iaxs[callno]->owner) {
       ast_queue_hangup(iaxs[callno]->owner);
       ast_channel_unlock(iaxs[callno]->owner);
    }
    return 0;
 }

◆ iax2_queue_hold()

static int iax2_queue_hold	(	int	callno,
		const char *	musicclass
	)

static

Queue a hold frame on the ast_channel owner.

This function queues a hold frame on the owner of the IAX2 pvt struct that is active for the given call number.

Precondition: Assumes lock for callno is already held.

Note: IMPORTANT NOTE!!! Any time this function is used, even if iaxs[callno] was valid before calling it, it may no longer be valid after calling it. This function may unlock and lock the mutex associated with this callno, meaning that another thread may grab it and destroy the call.

Definition at line 3276 of file chan_iax2.c.

References ast_channel_unlock, ast_queue_hold(), and iax2_lock_owner().

Referenced by socket_process_helper().

 {
    iax2_lock_owner(callno);
    if (iaxs[callno] && iaxs[callno]->owner) {
       ast_queue_hold(iaxs[callno]->owner, musicclass);
       ast_channel_unlock(iaxs[callno]->owner);
    }
    return 0;
 }

◆ iax2_queue_unhold()

static int iax2_queue_unhold ( int callno )

static

Queue an unhold frame on the ast_channel owner.

This function queues an unhold frame on the owner of the IAX2 pvt struct that is active for the given call number.

Precondition: Assumes lock for callno is already held.

Note: IMPORTANT NOTE!!! Any time this function is used, even if iaxs[callno] was valid before calling it, it may no longer be valid after calling it. This function may unlock and lock the mutex associated with this callno, meaning that another thread may grab it and destroy the call.

Definition at line 3299 of file chan_iax2.c.

References ast_channel_unlock, ast_queue_unhold(), and iax2_lock_owner().

Referenced by socket_process_helper().

 {
    iax2_lock_owner(callno);
    if (iaxs[callno] && iaxs[callno]->owner) {
       ast_queue_unhold(iaxs[callno]->owner);
       ast_channel_unlock(iaxs[callno]->owner);
    }
    return 0;
 }

◆ iax2_read()

static struct ast_frame * iax2_read ( struct ast_channel * c )

static

Definition at line 5456 of file chan_iax2.c.

References ast_debug, and ast_null_frame.

Referenced by jb_debug_output().

 {
    ast_debug(1, "I should never be called!\n");
    return &ast_null_frame;
 }

◆ iax2_register()

static int iax2_register	(	const char *	value,
		int	lineno
	)

static

Definition at line 8824 of file chan_iax2.c.

References ast_copy_string(), ast_log, copy(), hostname, iax2_append_register(), LOG_WARNING, NULL, iax2_registry::secret, strsep(), and iax2_registry::username.

Referenced by set_config().

 {
    char copy[256];
    char *username, *hostname, *secret;
    char *porta;
    char *stringp=NULL;
 
    if (!value)
       return -1;
 
    ast_copy_string(copy, value, sizeof(copy));
    stringp = copy;
    username = strsep(&stringp, "@");
    hostname = strsep(&stringp, "@");
 
    if (!hostname) {
       ast_log(LOG_WARNING, "Format for registration is user[:secret]@host[:port] at line %d\n", lineno);
       return -1;
    }
 
    stringp = username;
    username = strsep(&stringp, ":");
    secret = strsep(&stringp, ":");
    stringp = hostname;
    hostname = strsep(&stringp, ":");
    porta = strsep(&stringp, ":");
 
    if (porta && !atoi(porta)) {
       ast_log(LOG_WARNING, "%s is not a valid port number at line %d\n", porta, lineno);
       return -1;
    }
 
    return iax2_append_register(hostname, username, secret, porta);
 }

◆ iax2_request()

static struct ast_channel * iax2_request	(	const char *	type,
		struct ast_format_cap *	cap,
		const struct ast_assigned_ids *	assignedids,
		const struct ast_channel *	requestor,
		const char *	data,
		int *	cause
	)

static

Definition at line 12458 of file chan_iax2.c.

References ao2_ref, AST_CAUSE_CONGESTION, AST_CAUSE_UNREGISTERED, ast_channel_callid_set(), ast_channel_lock, ast_channel_name(), ast_channel_nativeformats(), ast_channel_nativeformats_set(), ast_channel_set_readformat(), ast_channel_set_writeformat(), ast_channel_unlock, ast_copy_flags64, ast_format_cap_alloc, ast_format_cap_append, ast_format_cap_count(), AST_FORMAT_CAP_FLAG_DEFAULT, ast_format_cap_get_compatible(), ast_format_cap_get_format(), ast_format_cap_get_names(), AST_FORMAT_CAP_NAMES_LEN, ast_hangup(), ast_iax2_new(), ast_log, ast_mutex_unlock, ast_parse_arg(), ast_read_threadstorage_callid(), ast_sockaddr_set_port, AST_STATE_DOWN, ast_str_alloca, ast_strdupa, ast_string_field_set, ast_strlen_zero, ast_test_flag64, ast_translator_best_choice(), c, create_addr_info::capability, create_addr(), find_callno_locked(), format, create_addr_info::found, host, iax2_capability, IAX_NOTRANSFER, iax_pvt_callid_set(), IAX_RECVCONNECTEDLINE, IAX_SENDANI, IAX_SENDCONNECTEDLINE, IAX_TRANSFERMEDIA, IAX_TRUNK, IAX_USEJITTERBUF, LOG_WARNING, make_trunk(), chan_iax2_pvt::maxtime, create_addr_info::maxtime, NEW_FORCE, NULL, parse_dial_string(), PARSE_IN_RANGE, PARSE_UINT32, parsed_dial_string::peer, parsed_dial_string::port, create_addr_info::prefs, and create_addr_info::sockfd.

Referenced by jb_debug_output().

 {
    int callno;
    int res;
    struct ast_sockaddr addr;
    struct ast_channel *c;
    struct parsed_dial_string pds;
    struct create_addr_info cai;
    char *tmpstr;
    ast_callid callid;
 
    memset(&pds, 0, sizeof(pds));
    tmpstr = ast_strdupa(data);
    parse_dial_string(tmpstr, &pds);
 
    callid = ast_read_threadstorage_callid();
 
    if (ast_strlen_zero(pds.peer)) {
       ast_log(LOG_WARNING, "No peer provided in the IAX2 dial string '%s'\n", data);
       return NULL;
    }
    memset(&cai, 0, sizeof(cai));
    cai.capability = iax2_capability;
 
    ast_copy_flags64(&cai, &globalflags, IAX_NOTRANSFER | IAX_TRANSFERMEDIA | IAX_USEJITTERBUF | IAX_SENDCONNECTEDLINE | IAX_RECVCONNECTEDLINE);
 
    /* Populate our address from the given */
    if (create_addr(pds.peer, NULL, &addr, &cai)) {
       *cause = AST_CAUSE_UNREGISTERED;
       return NULL;
    }
 
    if (pds.port) {
       int bindport;
       ast_parse_arg(pds.port, PARSE_UINT32 | PARSE_IN_RANGE, &bindport, 0, 65535);
       ast_sockaddr_set_port(&addr, bindport);
    }
 
    callno = find_callno_locked(0, 0, &addr, NEW_FORCE, cai.sockfd, 0);
    if (callno < 1) {
       ast_log(LOG_WARNING, "Unable to create call\n");
       *cause = AST_CAUSE_CONGESTION;
       return NULL;
    }
 
    /* If this is a trunk, update it now */
    ast_copy_flags64(iaxs[callno], &cai, IAX_TRUNK | IAX_SENDANI | IAX_NOTRANSFER | IAX_TRANSFERMEDIA | IAX_USEJITTERBUF | IAX_SENDCONNECTEDLINE | IAX_RECVCONNECTEDLINE);
    if (ast_test_flag64(&cai, IAX_TRUNK)) {
       int new_callno;
       if ((new_callno = make_trunk(callno, 1)) != -1)
          callno = new_callno;
    }
    iaxs[callno]->maxtime = cai.maxtime;
    if (callid) {
       iax_pvt_callid_set(callno, callid);
    }
 
    if (cai.found) {
       ast_string_field_set(iaxs[callno], host, pds.peer);
    }
 
    c = ast_iax2_new(callno, AST_STATE_DOWN, cai.capability, &cai.prefs, assignedids,
       requestor, cai.found);
 
    ast_mutex_unlock(&iaxsl[callno]);
 
    if (c) {
       struct ast_format_cap *joint;
       struct ast_format *format;
       if (callid) {
          ast_channel_lock(c);
          ast_channel_callid_set(c, callid);
          ast_channel_unlock(c);
       }
 
       joint = ast_format_cap_alloc(AST_FORMAT_CAP_FLAG_DEFAULT);
       if (!joint) {
          ast_hangup(c);
          return NULL;
       }
 
       ast_format_cap_get_compatible(ast_channel_nativeformats(c), cap, joint);
 
       /* If there is no joint format find one through translation */
       if (!ast_format_cap_count(joint)) {
          struct ast_format *best_fmt_cap = NULL;
          struct ast_format *best_fmt_native = NULL;
 
          res = ast_translator_best_choice(cap, ast_channel_nativeformats(c), &best_fmt_cap, &best_fmt_native);
          if (res < 0) {
             struct ast_str *native_cap_buf = ast_str_alloca(AST_FORMAT_CAP_NAMES_LEN);
             struct ast_str *cap_buf = ast_str_alloca(AST_FORMAT_CAP_NAMES_LEN);
 
             ast_log(LOG_WARNING, "Unable to create translator path for %s to %s on %s\n",
                ast_format_cap_get_names(ast_channel_nativeformats(c), &native_cap_buf),
                ast_format_cap_get_names(cap, &cap_buf),
                ast_channel_name(c));
             ast_hangup(c);
             ao2_ref(joint, -1);
             return NULL;
          }
          ast_format_cap_append(joint, best_fmt_native, 0);
          ao2_ref(best_fmt_cap, -1);
          ao2_ref(best_fmt_native, -1);
       }
       ast_channel_nativeformats_set(c, joint);
       format = ast_format_cap_get_format(ast_channel_nativeformats(c), 0);
       ast_channel_set_readformat(c, format);
       ast_channel_set_writeformat(c, format);
 
       ao2_ref(joint, -1);
       ao2_ref(format, -1);
    }
 
    return c;
 }

◆ iax2_sched_add()

static int iax2_sched_add	(	struct ast_sched_context *	sched,
		int	when,
		ast_sched_cb	callback,
		const void *	data
	)

static

Definition at line 1687 of file chan_iax2.c.

References ast_sched_add().

Referenced by __attempt_transmit(), __find_callno(), __iax2_poke_noanswer(), __send_lagrq(), __send_ping(), iax2_call(), iax2_destroy_helper(), iax2_poke_peer(), jb_debug_output(), make_trunk(), network_change_stasis_cb(), realtime_peer(), reg_source_db(), sched_delay_remove(), socket_process_helper(), transmit_frame(), and update_registry().

 {
    return ast_sched_add(con, when, callback, data);
 }

◆ iax2_sched_replace()

static int iax2_sched_replace	(	int	id,
		struct ast_sched_context *	con,
		int	when,
		ast_sched_cb	callback,
		const void *	data
	)

static

Definition at line 1681 of file chan_iax2.c.

References ast_sched_replace().

Referenced by auth_fail(), iax2_ack_registry(), iax2_do_register(), iax2_dprequest(), iax2_provision(), and update_jbsched().

 {
    return ast_sched_replace(id, con, when, callback, data);
 }

◆ iax2_send()

static int iax2_send	(	struct chan_iax2_pvt *	pvt,
		struct ast_frame *	f,
		unsigned int	ts,
		int	seqno,
		int	now,
		int	transfer,
		int	final
	)

static

Definition at line 6543 of file chan_iax2.c.

References chan_iax2_pvt::addr, iax_frame::af, iax_frame::afdatalen, chan_iax2_pvt::aseqno, ast_format_cmp(), AST_FORMAT_CMP_EQUAL, ast_format_compatibility_bitfield2format(), ast_format_compatibility_format2bitfield(), AST_FRAME_IAX, AST_FRAME_VIDEO, AST_FRAME_VOICE, ast_log, ast_test_flag64, calc_timestamp(), iax_frame::callno, ast_iax2_mini_hdr::callno, ast_iax2_video_hdr::callno, chan_iax2_pvt::callno, compress_subclass(), ast_iax2_full_hdr::csub, iax_frame::data, ast_frame::data, iax_frame::datalen, ast_frame::datalen, iax_frame::dcallno, ast_iax2_full_hdr::dcallno, DIRECTION_OUTGRESS, iax_frame::ecx, chan_iax2_pvt::ecx, iax_frame::encmethods, chan_iax2_pvt::encmethods, encrypt_frame(), iax_frame::final, chan_iax2_pvt::first_iax_message, ast_frame_subclass::format, ast_frame_subclass::frame_ending, ast_frame::frametype, iax2_key_rotate(), iax2_transmit(), iax2_trunk_queue(), IAX_CALLENCRYPTED, IAX_COMMAND_ACK, IAX_ENCRYPTED, IAX_FLAG_FULL, iax_frame_new(), iax_frame_wrap(), IAX_KEYPOPULATED, iax_outputframe(), IAX_TRUNK, ast_frame_subclass::integer, iax_frame::iseqno, ast_iax2_full_hdr::iseqno, chan_iax2_pvt::iseqno, chan_iax2_pvt::keyrotateid, chan_iax2_pvt::last_iax_message, chan_iax2_pvt::lastsent, chan_iax2_pvt::lastvsent, LOG_NOTICE, LOG_WARNING, MARK_IAX_SUBCLASS_TX, MAX_RETRY_TIME, MIN_RETRY_TIME, iax_frame::mydcx, chan_iax2_pvt::mydcx, NULL, iax_frame::oseqno, ast_iax2_full_hdr::oseqno, chan_iax2_pvt::oseqno, chan_iax2_pvt::peercallno, chan_iax2_pvt::pingtime, ast_frame::ptr, iax_frame::retries, iax_frame::retrytime, ast_iax2_full_hdr::scallno, iax_frame::semirand, chan_iax2_pvt::semirand, send_packet(), ast_frame::subclass, chan_iax2_pvt::svideoformat, chan_iax2_pvt::svoiceformat, iax_frame::transfer, transfer, chan_iax2_pvt::transfer, TRANSFER_MEDIAPASS, chan_iax2_pvt::transfercallno, chan_iax2_pvt::transferring, iax_frame::ts, ast_iax2_full_hdr::ts, ast_iax2_mini_hdr::ts, ast_iax2_video_hdr::ts, ast_iax2_full_hdr::type, and ast_iax2_video_hdr::zeros.

Referenced by __send_command(), iax2_write(), jb_debug_output(), send_signaling(), and socket_process_helper().

 {
    /* Queue a packet for delivery on a given private structure.  Use "ts" for
       timestamp, or calculate if ts is 0.  Send immediately without retransmission
       or delayed, with retransmission */
    struct ast_iax2_full_hdr *fh;
    struct ast_iax2_mini_hdr *mh;
    struct ast_iax2_video_hdr *vh;
    struct {
       struct iax_frame fr2;
       unsigned char buffer[4096];
    } frb;
    struct iax_frame *fr;
    int res;
    int sendmini=0;
    unsigned int lastsent;
    unsigned int fts;
 
    frb.fr2.afdatalen = sizeof(frb.buffer);
 
    if (!pvt) {
       ast_log(LOG_WARNING, "No private structure for packet?\n");
       return -1;
    }
 
    lastsent = pvt->lastsent;
 
    /* Calculate actual timestamp */
    fts = calc_timestamp(pvt, ts, f);
 
    /* Bail here if this is an "interp" frame; we don't want or need to send these placeholders out
     * (the endpoint should detect the lost packet itself).  But, we want to do this here, so that we
     * increment the "predicted timestamps" for voice, if we're predicting */
    if(f->frametype == AST_FRAME_VOICE && f->datalen == 0)
       return 0;
 #if 0
    ast_log(LOG_NOTICE,
       "f->frametype %c= AST_FRAME_VOICE, %sencrypted, %srotation scheduled...\n",
       *("=!" + (f->frametype == AST_FRAME_VOICE)),
       IAX_CALLENCRYPTED(pvt) ? "" : "not ",
       pvt->keyrotateid != -1 ? "" : "no "
    );
 #endif
    if (pvt->keyrotateid == -1 && f->frametype == AST_FRAME_VOICE && IAX_CALLENCRYPTED(pvt)) {
       iax2_key_rotate(pvt);
    }
 
    if ((ast_test_flag64(pvt, IAX_TRUNK) ||
          (((fts & 0xFFFF0000L) == (lastsent & 0xFFFF0000L)) ||
          ((fts & 0xFFFF0000L) == ((lastsent + 0x10000) & 0xFFFF0000L))))
       /* High two bytes are the same on timestamp, or sending on a trunk */ &&
        (f->frametype == AST_FRAME_VOICE)
       /* is a voice frame */ &&
       (ast_format_cmp(f->subclass.format, ast_format_compatibility_bitfield2format(pvt->svoiceformat)) ==
          AST_FORMAT_CMP_EQUAL)
       /* is the same type */ ) {
          /* Force immediate rather than delayed transmission */
          now = 1;
          /* Mark that mini-style frame is appropriate */
          sendmini = 1;
    }
    if ( f->frametype == AST_FRAME_VIDEO ) {
       /*
        * If the lower 15 bits of the timestamp roll over, or if
        * the video format changed then send a full frame.
        * Otherwise send a mini video frame
        */
       if (((fts & 0xFFFF8000L) == (pvt->lastvsent & 0xFFFF8000L)) &&
       (ast_format_cmp(f->subclass.format, ast_format_compatibility_bitfield2format(pvt->svideoformat)) ==
          AST_FORMAT_CMP_EQUAL)
          ) {
          now = 1;
          sendmini = 1;
       } else {
          now = 0;
          sendmini = 0;
       }
       pvt->lastvsent = fts;
    }
    if (f->frametype == AST_FRAME_IAX) {
       /* 0x8000 marks this message as TX:, this bit will be stripped later */
       pvt->last_iax_message = f->subclass.integer | MARK_IAX_SUBCLASS_TX;
       if (!pvt->first_iax_message) {
          pvt->first_iax_message = pvt->last_iax_message;
       }
    }
    /* Allocate an iax_frame */
    if (now) {
       fr = &frb.fr2;
    } else
       fr = iax_frame_new(DIRECTION_OUTGRESS, ast_test_flag64(pvt, IAX_ENCRYPTED) ? f->datalen + 32 : f->datalen, (f->frametype == AST_FRAME_VOICE) || (f->frametype == AST_FRAME_VIDEO));
    if (!fr) {
       ast_log(LOG_WARNING, "Out of memory\n");
       return -1;
    }
    /* Copy our prospective frame into our immediate or retransmitted wrapper */
    iax_frame_wrap(fr, f);
 
    fr->ts = fts;
    fr->callno = pvt->callno;
    fr->transfer = transfer;
    fr->final = final;
    fr->encmethods = 0;
    if (!sendmini) {
       /* We need a full frame */
       if (seqno > -1)
          fr->oseqno = seqno;
       else
          fr->oseqno = pvt->oseqno++;
       fr->iseqno = pvt->iseqno;
       fh = (struct ast_iax2_full_hdr *)(fr->af.data.ptr - sizeof(struct ast_iax2_full_hdr));
       fh->scallno = htons(fr->callno | IAX_FLAG_FULL);
       fh->ts = htonl(fr->ts);
       fh->oseqno = fr->oseqno;
       if (transfer) {
          fh->iseqno = 0;
       } else
          fh->iseqno = fr->iseqno;
       /* Keep track of the last thing we've acknowledged */
       if (!transfer)
          pvt->aseqno = fr->iseqno;
       fh->type = fr->af.frametype & 0xFF;
 
       if (fr->af.frametype == AST_FRAME_VIDEO) {
          iax2_format tmpfmt = ast_format_compatibility_format2bitfield(fr->af.subclass.format);
          tmpfmt |= fr->af.subclass.frame_ending ? 0x1LL : 0;
          fh->csub = compress_subclass(tmpfmt | ((tmpfmt & 0x1LL) << 6));
       } else if (fr->af.frametype == AST_FRAME_VOICE) {
          fh->csub = compress_subclass(ast_format_compatibility_format2bitfield(fr->af.subclass.format));
       } else {
          fh->csub = compress_subclass(fr->af.subclass.integer);
       }
 
       if (transfer) {
          fr->dcallno = pvt->transfercallno;
       } else
          fr->dcallno = pvt->peercallno;
       fh->dcallno = htons(fr->dcallno);
       fr->datalen = fr->af.datalen + sizeof(struct ast_iax2_full_hdr);
       fr->data = fh;
       fr->retries = 0;
       /* Retry after 2x the ping time has passed */
       fr->retrytime = pvt->pingtime * 2;
       if (fr->retrytime < MIN_RETRY_TIME)
          fr->retrytime = MIN_RETRY_TIME;
       if (fr->retrytime > MAX_RETRY_TIME)
          fr->retrytime = MAX_RETRY_TIME;
       /* Acks' don't get retried */
       if ((f->frametype == AST_FRAME_IAX) && (f->subclass.integer == IAX_COMMAND_ACK))
          fr->retries = -1;
       else if (f->frametype == AST_FRAME_VOICE)
          pvt->svoiceformat = ast_format_compatibility_format2bitfield(f->subclass.format);
       else if (f->frametype == AST_FRAME_VIDEO)
          pvt->svideoformat = ast_format_compatibility_format2bitfield(f->subclass.format);
       if (ast_test_flag64(pvt, IAX_ENCRYPTED)) {
          if (ast_test_flag64(pvt, IAX_KEYPOPULATED)) {
             if (fr->transfer)
                iax_outputframe(fr, NULL, 2, &pvt->transfer, fr->datalen - sizeof(struct ast_iax2_full_hdr));
             else
                iax_outputframe(fr, NULL, 2, &pvt->addr, fr->datalen - sizeof(struct ast_iax2_full_hdr));
             encrypt_frame(&pvt->ecx, fh, pvt->semirand, &fr->datalen);
             fr->encmethods = pvt->encmethods;
             fr->ecx = pvt->ecx;
             fr->mydcx = pvt->mydcx;
             memcpy(fr->semirand, pvt->semirand, sizeof(fr->semirand));
          } else
             ast_log(LOG_WARNING, "Supposed to send packet encrypted, but no key?\n");
       }
 
       if (now) {
          res = send_packet(fr);
       } else
          res = iax2_transmit(fr);
    } else {
       if (ast_test_flag64(pvt, IAX_TRUNK)) {
          iax2_trunk_queue(pvt, fr);
          res = 0;
       } else if (fr->af.frametype == AST_FRAME_VIDEO) {
          /* Video frame have no sequence number */
          fr->oseqno = -1;
          fr->iseqno = -1;
          vh = (struct ast_iax2_video_hdr *)(fr->af.data.ptr - sizeof(struct ast_iax2_video_hdr));
          vh->zeros = 0;
          vh->callno = htons(0x8000 | fr->callno);
          vh->ts = htons((fr->ts & 0x7FFF) | (fr->af.subclass.frame_ending ? 0x8000 : 0));
          fr->datalen = fr->af.datalen + sizeof(struct ast_iax2_video_hdr);
          fr->data = vh;
          fr->retries = -1;
          res = send_packet(fr);
       } else {
          /* Mini-frames have no sequence number */
          fr->oseqno = -1;
          fr->iseqno = -1;
          /* Mini frame will do */
          mh = (struct ast_iax2_mini_hdr *)(fr->af.data.ptr - sizeof(struct ast_iax2_mini_hdr));
          mh->callno = htons(fr->callno);
          mh->ts = htons(fr->ts & 0xFFFF);
          fr->datalen = fr->af.datalen + sizeof(struct ast_iax2_mini_hdr);
          fr->data = mh;
          fr->retries = -1;
          if (pvt->transferring == TRANSFER_MEDIAPASS)
             fr->transfer = 1;
          if (ast_test_flag64(pvt, IAX_ENCRYPTED)) {
             if (ast_test_flag64(pvt, IAX_KEYPOPULATED)) {
                encrypt_frame(&pvt->ecx, (struct ast_iax2_full_hdr *)mh, pvt->semirand, &fr->datalen);
             } else
                ast_log(LOG_WARNING, "Supposed to send packet encrypted, but no key?\n");
          }
          res = send_packet(fr);
       }
    }
    return res;
 }

◆ iax2_sendhtml()

static int iax2_sendhtml	(	struct ast_channel *	c,
		int	subclass,
		const char *	data,
		int	datalen
	)

static

Definition at line 4338 of file chan_iax2.c.

References ast_channel_tech_pvt(), AST_FRAME_HTML, PTR_TO_CALLNO, and send_command_locked().

Referenced by jb_debug_output().

 {
    return send_command_locked(PTR_TO_CALLNO(ast_channel_tech_pvt(c)), AST_FRAME_HTML, subclass, 0, (unsigned char *)data, datalen, -1);
 }

◆ iax2_sendimage()

static int iax2_sendimage	(	struct ast_channel *	c,
		struct ast_frame *	img
	)

static

Definition at line 4333 of file chan_iax2.c.

References ast_channel_tech_pvt(), AST_FRAME_IMAGE, ast_frame::data, ast_frame::datalen, ast_frame_subclass::integer, ast_frame::ptr, PTR_TO_CALLNO, send_command_locked(), and ast_frame::subclass.

Referenced by jb_debug_output().

 {
    return send_command_locked(PTR_TO_CALLNO(ast_channel_tech_pvt(c)), AST_FRAME_IMAGE, img->subclass.integer, 0, img->data.ptr, img->datalen, -1);
 }

◆ iax2_sendtext()

static int iax2_sendtext	(	struct ast_channel *	c,
		const char *	text
	)

static

Definition at line 4326 of file chan_iax2.c.

References ast_channel_tech_pvt(), AST_FRAME_TEXT, PTR_TO_CALLNO, and send_command_locked().

Referenced by jb_debug_output().

 {
 
    return send_command_locked(PTR_TO_CALLNO(ast_channel_tech_pvt(c)), AST_FRAME_TEXT,
       0, 0, (unsigned char *)text, strlen(text) + 1, -1);
 }

◆ iax2_setoption()

static int iax2_setoption	(	struct ast_channel *	c,
		int	option,
		void *	data,
		int	datalen
	)

static

Definition at line 5367 of file chan_iax2.c.

References ast_channel_tech_pvt(), ast_clear_flag64, AST_CONTROL_OPTION, AST_FRAME_CONTROL, ast_free, ast_malloc, ast_mutex_lock, ast_mutex_unlock, AST_OPTION_AUDIO_MODE, AST_OPTION_DIGIT_DETECT, AST_OPTION_FAX_DETECT, AST_OPTION_FLAG_REQUEST, AST_OPTION_OPRMODE, AST_OPTION_RELAXDTMF, AST_OPTION_RXGAIN, AST_OPTION_SECURE_MEDIA, AST_OPTION_SECURE_SIGNALING, AST_OPTION_TDD, AST_OPTION_TONE_VERIFY, AST_OPTION_TXGAIN, ast_set_flag64, chan_iax2_pvt::callno, ast_option_header::data, errno, IAX_FORCE_ENCRYPT, PTR_TO_CALLNO, send_command_locked(), and wait_for_peercallno().

Referenced by jb_debug_output().

 {
    struct ast_option_header *h;
    int res;
 
    switch (option) {
    case AST_OPTION_TXGAIN:
    case AST_OPTION_RXGAIN:
       /* these two cannot be sent, because they require a result */
       errno = ENOSYS;
       return -1;
    case AST_OPTION_OPRMODE:
       errno = EINVAL;
       return -1;
    case AST_OPTION_SECURE_SIGNALING:
    case AST_OPTION_SECURE_MEDIA:
    {
       unsigned short callno = PTR_TO_CALLNO(ast_channel_tech_pvt(c));
       ast_mutex_lock(&iaxsl[callno]);
       if ((*(int *) data)) {
          ast_set_flag64(iaxs[callno], IAX_FORCE_ENCRYPT);
       } else {
          ast_clear_flag64(iaxs[callno], IAX_FORCE_ENCRYPT);
       }
       ast_mutex_unlock(&iaxsl[callno]);
       return 0;
    }
    /* These options are sent to the other side across the network where
     * they will be passed to whatever channel is bridged there. Don't
     * do anything silly like pass an option that transmits pointers to
     * memory on this machine to a remote machine to use */
    case AST_OPTION_TONE_VERIFY:
    case AST_OPTION_TDD:
    case AST_OPTION_RELAXDTMF:
    case AST_OPTION_AUDIO_MODE:
    case AST_OPTION_DIGIT_DETECT:
    case AST_OPTION_FAX_DETECT:
    {
       unsigned short callno = PTR_TO_CALLNO(ast_channel_tech_pvt(c));
       struct chan_iax2_pvt *pvt;
 
       ast_mutex_lock(&iaxsl[callno]);
       pvt = iaxs[callno];
 
       if (wait_for_peercallno(pvt)) {
          ast_mutex_unlock(&iaxsl[callno]);
          return -1;
       }
 
       ast_mutex_unlock(&iaxsl[callno]);
 
       if (!(h = ast_malloc(datalen + sizeof(*h)))) {
          return -1;
       }
 
       h->flag = AST_OPTION_FLAG_REQUEST;
       h->option = htons(option);
       memcpy(h->data, data, datalen);
       res = send_command_locked(PTR_TO_CALLNO(ast_channel_tech_pvt(c)), AST_FRAME_CONTROL,
                  AST_CONTROL_OPTION, 0, (unsigned char *) h,
                  datalen + sizeof(*h), -1);
       ast_free(h);
       return res;
    }
    default:
       return -1;
    }
 
    /* Just in case someone does a break instead of a return */
    return -1;
 }

◆ iax2_transfer()

static int iax2_transfer	(	struct ast_channel *	c,
		const char *	dest
	)

static

Definition at line 5787 of file chan_iax2.c.

References ast_channel_name(), ast_channel_tech_pvt(), AST_CONTROL_TRANSFER, ast_copy_string(), ast_debug, AST_FRAME_IAX, ast_queue_control_data(), AST_TRANSFER_SUCCESS, iax_ie_data::buf, context, IAX_COMMAND_TRANSFER, iax_ie_append_str(), IAX_IE_CALLED_CONTEXT, IAX_IE_CALLED_NUMBER, iax_ie_data::pos, PTR_TO_CALLNO, send_command_locked(), and tmp().

Referenced by jb_debug_output().

 {
    unsigned short callno = PTR_TO_CALLNO(ast_channel_tech_pvt(c));
    struct iax_ie_data ied = { "", };
    char tmp[256], *context;
    enum ast_control_transfer message = AST_TRANSFER_SUCCESS;
    ast_copy_string(tmp, dest, sizeof(tmp));
    context = strchr(tmp, '@');
    if (context) {
       *context = '\0';
       context++;
    }
    iax_ie_append_str(&ied, IAX_IE_CALLED_NUMBER, tmp);
    if (context)
       iax_ie_append_str(&ied, IAX_IE_CALLED_CONTEXT, context);
    ast_debug(1, "Transferring '%s' to '%s'\n", ast_channel_name(c), dest);
    ast_queue_control_data(c, AST_CONTROL_TRANSFER, &message, sizeof(message));
    return send_command_locked(callno, AST_FRAME_IAX, IAX_COMMAND_TRANSFER, 0, ied.buf, ied.pos, -1);
 }

◆ iax2_transmit()

static int iax2_transmit ( struct iax_frame * fr )

static

Definition at line 4309 of file chan_iax2.c.

References ast_taskprocessor_push(), iax_frame::sentyet, and transmit_frame().

Referenced by iax2_send().

 {
    fr->sentyet = 0;
 
    return ast_taskprocessor_push(transmit_processor, transmit_frame, fr);
 }

◆ iax2_trunk_expired()

static int iax2_trunk_expired	(	struct iax2_trunk_peer *	tpeer,
		struct timeval *	now
	)

inlinestatic

Definition at line 9452 of file chan_iax2.c.

References iax2_trunk_peer::trunkact.

Referenced by timing_read().

 {
    /* Drop when trunk is about 5 seconds idle */
    if (now->tv_sec > tpeer->trunkact.tv_sec + 5)
       return 1;
    return 0;
 }

◆ iax2_trunk_queue()

static int iax2_trunk_queue	(	struct chan_iax2_pvt *	pvt,
		struct iax_frame *	fr
	)

static

Definition at line 6282 of file chan_iax2.c.

References iax2_trunk_peer::addr, chan_iax2_pvt::addr, iax_frame::af, ast_debug, ast_log, ast_mutex_unlock, ast_realloc, ast_sockaddr_stringify(), ast_test_flag64, ast_tvnow(), ast_iax2_mini_hdr::callno, ast_iax2_meta_trunk_entry::callno, chan_iax2_pvt::callno, iax2_trunk_peer::calls, ast_frame::data, ast_frame::datalen, DEFAULT_TRUNKDATA, find_tpeer(), global_max_trunk_mtu, IAX2_TRUNK_PREFACE, IAX_TRUNKTIMESTAMPS, ast_iax2_meta_trunk_entry::len, ast_iax2_meta_trunk_mini::len, iax2_trunk_peer::lock, LOG_WARNING, ast_iax2_meta_trunk_mini::mini, ast_frame::ptr, send_trunk(), chan_iax2_pvt::sockfd, tmp(), trunk_maxmtu, trunk_untimed, iax2_trunk_peer::trunkdata, iax2_trunk_peer::trunkdataalloc, iax2_trunk_peer::trunkdatalen, trunkmaxsize, iax_frame::ts, and ast_iax2_mini_hdr::ts.

Referenced by iax2_send().

 {
    struct ast_frame *f;
    struct iax2_trunk_peer *tpeer;
    void *tmp, *ptr;
    struct timeval now;
    struct ast_iax2_meta_trunk_entry *met;
    struct ast_iax2_meta_trunk_mini *mtm;
 
    f = &fr->af;
    tpeer = find_tpeer(&pvt->addr, pvt->sockfd);
    if (tpeer) {
 
       if (tpeer->trunkdatalen + f->datalen + 4 >= tpeer->trunkdataalloc) {
          /* Need to reallocate space */
          if (tpeer->trunkdataalloc < trunkmaxsize) {
             if (!(tmp = ast_realloc(tpeer->trunkdata, tpeer->trunkdataalloc + DEFAULT_TRUNKDATA + IAX2_TRUNK_PREFACE))) {
                ast_mutex_unlock(&tpeer->lock);
                return -1;
             }
 
             tpeer->trunkdataalloc += DEFAULT_TRUNKDATA;
             tpeer->trunkdata = tmp;
             ast_debug(1, "Expanded trunk '%s' to %u bytes\n", ast_sockaddr_stringify(&tpeer->addr), tpeer->trunkdataalloc);
          } else {
             ast_log(LOG_WARNING, "Maximum trunk data space exceeded to %s\n", ast_sockaddr_stringify(&tpeer->addr));
             ast_mutex_unlock(&tpeer->lock);
             return -1;
          }
       }
 
       /* Append to meta frame */
       ptr = tpeer->trunkdata + IAX2_TRUNK_PREFACE + tpeer->trunkdatalen;
       if (ast_test_flag64(&globalflags, IAX_TRUNKTIMESTAMPS)) {
          mtm = (struct ast_iax2_meta_trunk_mini *)ptr;
          mtm->len = htons(f->datalen);
          mtm->mini.callno = htons(pvt->callno);
          mtm->mini.ts = htons(0xffff & fr->ts);
          ptr += sizeof(struct ast_iax2_meta_trunk_mini);
          tpeer->trunkdatalen += sizeof(struct ast_iax2_meta_trunk_mini);
       } else {
          met = (struct ast_iax2_meta_trunk_entry *)ptr;
          /* Store call number and length in meta header */
          met->callno = htons(pvt->callno);
          met->len = htons(f->datalen);
          /* Advance pointers/decrease length past trunk entry header */
          ptr += sizeof(struct ast_iax2_meta_trunk_entry);
          tpeer->trunkdatalen += sizeof(struct ast_iax2_meta_trunk_entry);
       }
       /* Copy actual trunk data */
       memcpy(ptr, f->data.ptr, f->datalen);
       tpeer->trunkdatalen += f->datalen;
 
       tpeer->calls++;
 
       /* track the largest mtu we actually have sent */
       if (tpeer->trunkdatalen + f->datalen + 4 > trunk_maxmtu)
          trunk_maxmtu = tpeer->trunkdatalen + f->datalen + 4 ;
 
       /* if we have enough for a full MTU, ship it now without waiting */
       if (global_max_trunk_mtu > 0 && tpeer->trunkdatalen + f->datalen + 4 >= global_max_trunk_mtu) {
          now = ast_tvnow();
          send_trunk(tpeer, &now);
          trunk_untimed ++;
       }
 
       ast_mutex_unlock(&tpeer->lock);
    }
    return 0;
 }

◆ iax2_vnak()

static int iax2_vnak ( int callno )

static

Definition at line 9373 of file chan_iax2.c.

References AST_FRAME_IAX, IAX_COMMAND_VNAK, NULL, and send_command_immediate().

Referenced by socket_process_helper(), and socket_process_meta().

 {
    return send_command_immediate(iaxs[callno], AST_FRAME_IAX, IAX_COMMAND_VNAK, 0, NULL, 0, iaxs[callno]->iseqno);
 }

◆ iax2_write()

static int iax2_write	(	struct ast_channel *	c,
		struct ast_frame *	f
	)

static

Definition at line 7683 of file chan_iax2.c.

References ast_channel_tech_pvt(), ast_debug, AST_FRAME_NULL, AST_FRAME_VOICE, ast_mutex_lock, ast_mutex_unlock, ast_test_flag, ast_test_flag64, errno, ast_frame::frametype, iax2_send(), IAX_ALREADYGONE, IAX_QUELCH, IAX_STATE_STARTED, and PTR_TO_CALLNO.

Referenced by jb_debug_output().

 {
    unsigned short callno = PTR_TO_CALLNO(ast_channel_tech_pvt(c));
    int res = -1;
    ast_mutex_lock(&iaxsl[callno]);
    if (iaxs[callno]) {
    /* If there's an outstanding error, return failure now */
       if (!iaxs[callno]->error) {
          if (ast_test_flag64(iaxs[callno], IAX_ALREADYGONE))
             res = 0;
             /* Don't waste bandwidth sending null frames */
          else if (f->frametype == AST_FRAME_NULL)
             res = 0;
          else if ((f->frametype == AST_FRAME_VOICE) && ast_test_flag64(iaxs[callno], IAX_QUELCH))
             res = 0;
          else if (!ast_test_flag(&iaxs[callno]->state, IAX_STATE_STARTED))
             res = 0;
          else
          /* Simple, just queue for transmission */
             res = iax2_send(iaxs[callno], f, 0, -1, 0, 0, 0);
       } else {
          ast_debug(1, "Write error: %s\n", strerror(errno));
       }
    }
    /* If it's already gone, just return */
    ast_mutex_unlock(&iaxsl[callno]);
    return res;
 }

◆ iax_debug_output()

static void iax_debug_output ( const char * data )

static

Definition at line 1197 of file chan_iax2.c.

References ast_verbose(), and iaxdebug.

Referenced by load_module().

 {
    if (iaxdebug)
       ast_verbose("%s", data);
 }

◆ iax_error_output()

static void iax_error_output ( const char * data )

static

Definition at line 1203 of file chan_iax2.c.

References ast_log, and LOG_WARNING.

Referenced by load_module().

 {
    ast_log(LOG_WARNING, "%s", data);
 }

◆ iax_outputframe()

static void iax_outputframe	(	struct iax_frame *	f,
		struct ast_iax2_full_hdr *	fhi,
		int	rx,
		struct ast_sockaddr *	addr,
		int	datalen
	)

static

Definition at line 1179 of file chan_iax2.c.

References ast_sockaddr_cmp_addr(), ast_sockaddr_isnull(), ast_sockaddr_port, debugaddr, iax_showframe(), and iaxdebug.

Referenced by iax2_send(), raw_hangup(), send_apathetic_reply(), send_packet(), and socket_process_helper().

 {
    if (iaxdebug ||
        (addr && !ast_sockaddr_isnull(&debugaddr) &&
       (!ast_sockaddr_port(&debugaddr) ||
         ast_sockaddr_port(&debugaddr) == ast_sockaddr_port(addr)) &&
         !ast_sockaddr_cmp_addr(&debugaddr, addr))) {
 
       if (iaxdebug) {
          iax_showframe(f, fhi, rx, addr, datalen);
       } else {
          iaxdebug = 1;
          iax_showframe(f, fhi, rx, addr, datalen);
          iaxdebug = 0;
       }
    }
 }

◆ iax_pvt_callid_get()

static ast_callid iax_pvt_callid_get ( int callno )

static

Definition at line 1127 of file chan_iax2.c.

References chan_iax2_pvt::callid, and chan_iax2_pvt::callno.

Referenced by socket_process_helper().

 {
    return iaxs[callno]->callid;
 }

◆ iax_pvt_callid_new()

static void iax_pvt_callid_new ( int callno )

static

Definition at line 1137 of file chan_iax2.c.

References AST_CALLID_BUFFER_LENGTH, ast_callid_strnprint(), ast_create_callid(), and iax_pvt_callid_set().

Referenced by socket_process_helper().

 {
    ast_callid callid = ast_create_callid();
    char buffer[AST_CALLID_BUFFER_LENGTH];
    ast_callid_strnprint(buffer, sizeof(buffer), callid);
    iax_pvt_callid_set(callno, callid);
 }

◆ iax_pvt_callid_set()

static void iax_pvt_callid_set	(	int	callno,
		ast_callid	callid
	)

static

Definition at line 1132 of file chan_iax2.c.

References chan_iax2_pvt::callid, and chan_iax2_pvt::callno.

Referenced by iax2_request(), and iax_pvt_callid_new().

 {
    iaxs[callno]->callid = callid;
 }

◆ iaxfrdup2()

static struct iax_frame* iaxfrdup2 ( struct iax_frame * fr )

static

Definition at line 2286 of file chan_iax2.c.

References iax_frame::af, iax_frame::afdatalen, iax_frame::cacheable, ast_frame::datalen, DIRECTION_INGRESS, iax_frame_new(), iax_frame_wrap(), and NULL.

Referenced by socket_process_helper(), and socket_process_meta().

 {
    struct iax_frame *new = iax_frame_new(DIRECTION_INGRESS, fr->af.datalen, fr->cacheable);
    if (new) {
       size_t afdatalen = new->afdatalen;
       memcpy(new, fr, sizeof(*new));
       iax_frame_wrap(new, &fr->af);
       new->afdatalen = afdatalen;
       new->data = NULL;
       new->datalen = 0;
       new->direction = DIRECTION_INGRESS;
       new->retrans = -1;
    }
    return new;
 }

◆ insert_idle_thread()

static void insert_idle_thread ( struct iax2_thread * thread )

static

Definition at line 1571 of file chan_iax2.c.

References AST_LIST_INSERT_TAIL, AST_LIST_LOCK, AST_LIST_UNLOCK, IAX_THREAD_TYPE_DYNAMIC, and iax2_thread::type.

Referenced by iax2_process_thread().

 {
    if (thread->type == IAX_THREAD_TYPE_DYNAMIC) {
       AST_LIST_LOCK(&dynamic_list);
       AST_LIST_INSERT_TAIL(&dynamic_list, thread, list);
       AST_LIST_UNLOCK(&dynamic_list);
    } else {
       AST_LIST_LOCK(&idle_list);
       AST_LIST_INSERT_TAIL(&idle_list, thread, list);
       AST_LIST_UNLOCK(&idle_list);
    }
 
    return;
 }

◆ jb_debug_output()

static void jb_debug_output	(	const char *	fmt,
			...
	)

static

Definition at line 1232 of file chan_iax2.c.

References acf_channel_read(), acl_change_stasis_cb(), args, ast_verbose(), buf, build_ecx_key(), build_peer(), build_rand_pad(), build_user(), c, stasis_subscription::callback, stasis_subscription::data, decode_frame(), digit, encrypt_frame(), end, expire_registry(), get_unused_callno(), iax2_answer(), iax2_call(), iax2_devicestate(), iax2_digit_begin(), iax2_digit_end(), iax2_do_register(), iax2_dup_variable_datastore(), iax2_fixup(), iax2_free_variable_datastore(), iax2_hangup(), iax2_indicate(), iax2_poke_peer(), iax2_provision(), iax2_queryoption(), iax2_read(), iax2_request(), iax2_sched_add(), iax2_send(), iax2_sendhtml(), iax2_sendimage(), iax2_sendtext(), iax2_setoption(), iax2_transfer(), iax2_write(), len(), name, network_change_stasis_cb(), prune_peers(), prune_users(), realtime_update_peer(), replace_callno(), sched_delay_remove(), send_command(), send_command_final(), send_command_immediate(), send_command_locked(), send_command_transfer(), send_trunk(), sub, text, timeout, transfer, and type.

Referenced by handle_cli_iax2_set_debug_jb().

 {
    va_list args;
    char buf[1024];
 
    va_start(args, fmt);
    vsnprintf(buf, sizeof(buf), fmt, args);
    va_end(args);
 
    ast_verbose("%s", buf);
 }

◆ jb_error_output()

static void jb_error_output	(	const char *	fmt,
			...
	)

static

Definition at line 1208 of file chan_iax2.c.

References args, ast_log, buf, and LOG_ERROR.

Referenced by handle_cli_iax2_set_debug_jb(), and load_module().

 {
    va_list args;
    char buf[1024];
 
    va_start(args, fmt);
    vsnprintf(buf, sizeof(buf), fmt, args);
    va_end(args);
 
    ast_log(LOG_ERROR, "%s", buf);
 }

◆ jb_warning_output()

static void jb_warning_output	(	const char *	fmt,
			...
	)

static

Definition at line 1220 of file chan_iax2.c.

References args, ast_log, buf, and LOG_WARNING.

Referenced by handle_cli_iax2_set_debug_jb(), and load_module().

 {
    va_list args;
    char buf[1024];
 
    va_start(args, fmt);
    vsnprintf(buf, sizeof(buf), fmt, args);
    va_end(args);
 
    ast_log(LOG_WARNING, "%s", buf);
 }

◆ load_module()

static int load_module ( void )

static

Load the module.

Module loading including tests for configuration or dependencies. This function can return AST_MODULE_LOAD_FAILURE, AST_MODULE_LOAD_DECLINE, or AST_MODULE_LOAD_SUCCESS. If a dependency or environment variable fails tests return AST_MODULE_LOAD_FAILURE. If the module can not load the configuration file or other non-critical problem return AST_MODULE_LOAD_DECLINE. On success return AST_MODULE_LOAD_SUCCESS.

Definition at line 14828 of file chan_iax2.c.

References __unload_module(), ao2_callback, ao2_ref, ARRAY_LEN, ast_channel_register(), ast_cli_register_multiple, ast_custom_function_register, ast_format_cap_alloc, ast_format_cap_append_by_type(), AST_FORMAT_CAP_FLAG_DEFAULT, AST_LIST_LOCK, AST_LIST_TRAVERSE, AST_LIST_UNLOCK, ast_log, ast_manager_register_xml, AST_MEDIA_TYPE_UNKNOWN, AST_MODFLAG_LOAD_ORDER, AST_MODPRI_CHANNEL_DRIVER, AST_MODULE_INFO(), AST_MODULE_LOAD_DECLINE, AST_MODULE_LOAD_SUCCESS, AST_MODULE_SUPPORT_CORE, ast_mutex_init, ast_netsock_init(), ast_netsock_list_alloc(), ast_random(), ast_realtime_require_field(), ast_register_application_xml, ast_register_switch(), ast_sched_context_create(), ast_sched_context_destroy(), ast_sched_start_thread(), ast_timer_close(), ast_timer_open(), ast_timer_set_rate(), ast_verb, ASTERISK_GPL_KEY, ast_channel_tech::capabilities, config, EVENT_FLAG_REPORTING, EVENT_FLAG_SYSTEM, iax2_do_register(), iax2_poke_peer_cb(), iax2_prov_app(), iax_debug_output(), iax_error_output(), iax_firmware_reload(), iax_provision_reload(), iax_set_error(), iax_set_output(), io_context_create(), io_context_destroy(), jb_error_output(), jb_setoutput(), jb_warning_output(), load_objects(), LOG_ERROR, manager_iax2_show_netstats(), manager_iax2_show_peer_list(), manager_iax2_show_peers(), manager_iax2_show_registry(), network_change_stasis_subscribe(), NULL, peer_set_sock_cb(), reload(), RQ_CHAR, RQ_UINTEGER2, SENTINEL, set_config(), start_network_thread(), trunkfreq, and unload_module().

 {
    static const char config[] = "iax.conf";
    int x = 0;
    struct iax2_registry *reg = NULL;
 
    if (!(iax2_tech.capabilities = ast_format_cap_alloc(AST_FORMAT_CAP_FLAG_DEFAULT))) {
       return AST_MODULE_LOAD_DECLINE;
    }
    ast_format_cap_append_by_type(iax2_tech.capabilities, AST_MEDIA_TYPE_UNKNOWN);
 
    if (load_objects()) {
       ao2_ref(iax2_tech.capabilities, -1);
       iax2_tech.capabilities = NULL;
       return AST_MODULE_LOAD_DECLINE;
    }
 
    memset(iaxs, 0, sizeof(iaxs));
 
    for (x = 0; x < ARRAY_LEN(iaxsl); x++) {
       ast_mutex_init(&iaxsl[x]);
    }
 
    if (!(sched = ast_sched_context_create())) {
       ast_log(LOG_ERROR, "Failed to create scheduler thread\n");
       ao2_ref(iax2_tech.capabilities, -1);
       iax2_tech.capabilities = NULL;
       return AST_MODULE_LOAD_DECLINE;
    }
 
    if (ast_sched_start_thread(sched)) {
       ast_sched_context_destroy(sched);
       ao2_ref(iax2_tech.capabilities, -1);
       iax2_tech.capabilities = NULL;
       sched = NULL;
       return AST_MODULE_LOAD_DECLINE;
    }
 
    if (!(io = io_context_create())) {
       ast_log(LOG_ERROR, "Failed to create I/O context\n");
       ast_sched_context_destroy(sched);
       ao2_ref(iax2_tech.capabilities, -1);
       iax2_tech.capabilities = NULL;
       sched = NULL;
       return AST_MODULE_LOAD_DECLINE;
    }
 
    if (!(netsock = ast_netsock_list_alloc())) {
       ast_log(LOG_ERROR, "Failed to create netsock list\n");
       io_context_destroy(io);
       ast_sched_context_destroy(sched);
       ao2_ref(iax2_tech.capabilities, -1);
       iax2_tech.capabilities = NULL;
       sched = NULL;
       return AST_MODULE_LOAD_DECLINE;
    }
    ast_netsock_init(netsock);
 
    outsock = ast_netsock_list_alloc();
    if (!outsock) {
       ast_log(LOG_ERROR, "Could not allocate outsock list.\n");
       io_context_destroy(io);
       ast_sched_context_destroy(sched);
       ao2_ref(iax2_tech.capabilities, -1);
       iax2_tech.capabilities = NULL;
       sched = NULL;
       return AST_MODULE_LOAD_DECLINE;
    }
    ast_netsock_init(outsock);
 
    randomcalltokendata = ast_random();
 
    iax_set_output(iax_debug_output);
    iax_set_error(iax_error_output);
    jb_setoutput(jb_error_output, jb_warning_output, NULL);
 
    if ((timer = ast_timer_open())) {
       ast_timer_set_rate(timer, 1000 / trunkfreq);
    }
 
    if (set_config(config, 0, 0) == -1) {
       if (timer) {
          ast_timer_close(timer);
          timer = NULL;
       }
       __unload_module();
       return AST_MODULE_LOAD_DECLINE;
    }
 
    ast_cli_register_multiple(cli_iax2, ARRAY_LEN(cli_iax2));
 
    ast_register_application_xml(papp, iax2_prov_app);
 
    ast_custom_function_register(&iaxpeer_function);
    ast_custom_function_register(&iaxvar_function);
 
    ast_manager_register_xml("IAXpeers", EVENT_FLAG_SYSTEM | EVENT_FLAG_REPORTING, manager_iax2_show_peers);
    ast_manager_register_xml("IAXpeerlist", EVENT_FLAG_SYSTEM | EVENT_FLAG_REPORTING, manager_iax2_show_peer_list);
    ast_manager_register_xml("IAXnetstats", EVENT_FLAG_SYSTEM | EVENT_FLAG_REPORTING, manager_iax2_show_netstats);
    ast_manager_register_xml("IAXregistry", EVENT_FLAG_SYSTEM | EVENT_FLAG_REPORTING, manager_iax2_show_registry);
 
    if (ast_channel_register(&iax2_tech)) {
       ast_log(LOG_ERROR, "Unable to register channel class %s\n", "IAX2");
       __unload_module();
       return AST_MODULE_LOAD_DECLINE;
    }
 
    if (ast_register_switch(&iax2_switch)) {
       ast_log(LOG_ERROR, "Unable to register IAX switch\n");
    }
 
    if (start_network_thread()) {
       ast_log(LOG_ERROR, "Unable to start network thread\n");
       __unload_module();
       return AST_MODULE_LOAD_DECLINE;
    } else {
       ast_verb(2, "IAX Ready and Listening\n");
    }
 
    AST_LIST_LOCK(&registrations);
    AST_LIST_TRAVERSE(&registrations, reg, entry)
       iax2_do_register(reg);
    AST_LIST_UNLOCK(&registrations);
 
    ao2_callback(peers, 0, peer_set_sock_cb, NULL);
    ao2_callback(peers, 0, iax2_poke_peer_cb, NULL);
 
 
    iax_firmware_reload();
    iax_provision_reload(0);
 
    ast_realtime_require_field("iaxpeers", "name", RQ_CHAR, 10, "ipaddr", RQ_CHAR, 15, "port", RQ_UINTEGER2, 5, "regseconds", RQ_UINTEGER2, 6, SENTINEL);
 
    network_change_stasis_subscribe();
 
    return AST_MODULE_LOAD_SUCCESS;
 }

◆ load_objects()

static int load_objects ( void )

static

Definition at line 14735 of file chan_iax2.c.

References addr_range_cmp_cb(), addr_range_hash_cb(), AO2_ALLOC_OPT_LOCK_MUTEX, ao2_container_alloc_hash, ao2_ref, ast_taskprocessor_get(), create_callno_pools(), IAX_MAX_CALLS, MAX_PEER_BUCKETS, MAX_USER_BUCKETS, NULL, peer_cmp_cb(), peer_hash_cb(), peercnt_cmp_cb(), peercnt_hash_cb(), pvt_cmp_cb(), pvt_hash_cb(), TPS_REF_DEFAULT, transfercallno_pvt_cmp_cb(), transfercallno_pvt_hash_cb(), user_cmp_cb(), and user_hash_cb().

Referenced by load_module().

 {
    peers = users = iax_peercallno_pvts = iax_transfercallno_pvts = NULL;
    peercnts = callno_limits = calltoken_ignores = NULL;
 
    peers = ao2_container_alloc_hash(AO2_ALLOC_OPT_LOCK_MUTEX, 0, MAX_PEER_BUCKETS,
       peer_hash_cb, NULL, peer_cmp_cb);
    if (!peers) {
       goto container_fail;
    }
 
    users = ao2_container_alloc_hash(AO2_ALLOC_OPT_LOCK_MUTEX, 0, MAX_USER_BUCKETS,
       user_hash_cb, NULL, user_cmp_cb);
    if (!users) {
       goto container_fail;
    }
 
    iax_peercallno_pvts = ao2_container_alloc_hash(AO2_ALLOC_OPT_LOCK_MUTEX, 0,
       IAX_MAX_CALLS, pvt_hash_cb, NULL, pvt_cmp_cb);
    if (!iax_peercallno_pvts) {
       goto container_fail;
    }
 
    iax_transfercallno_pvts = ao2_container_alloc_hash(AO2_ALLOC_OPT_LOCK_MUTEX, 0,
       IAX_MAX_CALLS, transfercallno_pvt_hash_cb, NULL, transfercallno_pvt_cmp_cb);
    if (!iax_transfercallno_pvts) {
       goto container_fail;
    }
 
    peercnts = ao2_container_alloc_hash(AO2_ALLOC_OPT_LOCK_MUTEX, 0, MAX_PEER_BUCKETS,
       peercnt_hash_cb, NULL, peercnt_cmp_cb);
    if (!peercnts) {
       goto container_fail;
    }
 
    callno_limits = ao2_container_alloc_hash(AO2_ALLOC_OPT_LOCK_MUTEX, 0,
       MAX_PEER_BUCKETS, addr_range_hash_cb, NULL, addr_range_cmp_cb);
    if (!callno_limits) {
       goto container_fail;
    }
 
    calltoken_ignores = ao2_container_alloc_hash(AO2_ALLOC_OPT_LOCK_MUTEX, 0,
       MAX_PEER_BUCKETS, addr_range_hash_cb, NULL, addr_range_cmp_cb);
    if (!calltoken_ignores) {
       goto container_fail;
    }
 
    if (create_callno_pools()) {
       goto container_fail;
    }
 
    transmit_processor = ast_taskprocessor_get("iax2_transmit", TPS_REF_DEFAULT);
    if (!transmit_processor) {
       goto container_fail;
    }
 
    return 0;
 
 container_fail:
    if (peers) {
       ao2_ref(peers, -1);
    }
    if (users) {
       ao2_ref(users, -1);
    }
    if (iax_peercallno_pvts) {
       ao2_ref(iax_peercallno_pvts, -1);
    }
    if (iax_transfercallno_pvts) {
       ao2_ref(iax_transfercallno_pvts, -1);
    }
    if (peercnts) {
       ao2_ref(peercnts, -1);
    }
    if (callno_limits) {
       ao2_ref(callno_limits, -1);
    }
    if (calltoken_ignores) {
       ao2_ref(calltoken_ignores, -1);
    }
    return -1;
 }

◆ log_jitterstats()

static void log_jitterstats ( unsigned short callno )

static

Definition at line 9669 of file chan_iax2.c.

References ast_channel_name(), ast_debug, ast_mutex_lock, ast_mutex_unlock, ast_test_flag64, jb_info::current, iax_rr::delay, iax_rr::dropped, jb_info::frames_dropped, jb_info::frames_in, jb_info::frames_lost, jb_info::frames_ooo, IAX_USEJITTERBUF, jb_getinfo(), jb_info::jitter, iax_rr::losscnt, jb_info::losspct, iax_rr::losspct, jb_info::min, iax_rr::ooo, iax_rr::packets, chan_iax2_pvt::remote_rr, socket_process(), and thread.

Referenced by socket_process_helper().

 {
    int localjitter = -1, localdelay = 0, locallost = -1, locallosspct = -1, localdropped = 0, localooo = -1, localpackets = -1;
    jb_info jbinfo;
 
    ast_mutex_lock(&iaxsl[callno]);
    if (iaxs[callno] && iaxs[callno]->owner && ast_channel_name(iaxs[callno]->owner)) {
       if(ast_test_flag64(iaxs[callno], IAX_USEJITTERBUF)) {
          jb_getinfo(iaxs[callno]->jb, &jbinfo);
          localjitter = jbinfo.jitter;
          localdelay = jbinfo.current - jbinfo.min;
          locallost = jbinfo.frames_lost;
          locallosspct = jbinfo.losspct/1000;
          localdropped = jbinfo.frames_dropped;
          localooo = jbinfo.frames_ooo;
          localpackets = jbinfo.frames_in;
       }
       ast_debug(3, "JB STATS:%s ping=%u ljitterms=%d ljbdelayms=%d ltotlost=%d lrecentlosspct=%d ldropped=%d looo=%d lrecvd=%d rjitterms=%d rjbdelayms=%d rtotlost=%d rrecentlosspct=%d rdropped=%d rooo=%d rrecvd=%d\n",
          ast_channel_name(iaxs[callno]->owner),
          iaxs[callno]->pingtime,
          localjitter,
          localdelay,
          locallost,
          locallosspct,
          localdropped,
          localooo,
          localpackets,
          iaxs[callno]->remote_rr.jitter,
          iaxs[callno]->remote_rr.delay,
          iaxs[callno]->remote_rr.losscnt,
          iaxs[callno]->remote_rr.losspct/1000,
          iaxs[callno]->remote_rr.dropped,
          iaxs[callno]->remote_rr.ooo,
          iaxs[callno]->remote_rr.packets);
    }
    ast_mutex_unlock(&iaxsl[callno]);
 }

◆ make_trunk()

static int make_trunk	(	unsigned short	callno,
		int	locked
	)

static

Note: We delete these before switching the slot, because if they fire in the meantime, they will generate a warning.

Definition at line 2333 of file chan_iax2.c.

References ast_debug, ast_log, ast_mutex_lock, ast_mutex_unlock, AST_SCHED_DEL, iax_frame::callno, chan_iax2_pvt::callno, chan_iax2_pvt::callno_entry, CALLNO_ENTRY_GET_CALLNO, CALLNO_ENTRY_IS_VALIDATED, CALLNO_ENTRY_TO_PTR, CALLNO_TYPE_TRUNK, get_unused_callno(), iax2_sched_add(), chan_iax2_pvt::lagid, lagrq_time, LOG_WARNING, MIN_REUSE_TIME, NULL, ping_time, chan_iax2_pvt::pingid, and TRUNK_CALL_START.

Referenced by iax2_request(), and socket_process_helper().

 {
    int x;
    int res= 0;
    callno_entry entry;
    if (iaxs[callno]->oseqno) {
       ast_log(LOG_WARNING, "Can't make trunk once a call has started!\n");
       return -1;
    }
    if (callno >= TRUNK_CALL_START) {
       ast_log(LOG_WARNING, "Call %d is already a trunk\n", callno);
       return -1;
    }
 
    if (get_unused_callno(
          CALLNO_TYPE_TRUNK,
          CALLNO_ENTRY_IS_VALIDATED(iaxs[callno]->callno_entry),
          &entry)) {
       ast_log(LOG_WARNING, "Unable to trunk call: Insufficient space\n");
       return -1;
    }
 
    x = CALLNO_ENTRY_GET_CALLNO(entry);
    ast_mutex_lock(&iaxsl[x]);
 
    /*!
     * \note We delete these before switching the slot, because if
     * they fire in the meantime, they will generate a warning.
     */
    AST_SCHED_DEL(sched, iaxs[callno]->pingid);
    AST_SCHED_DEL(sched, iaxs[callno]->lagid);
    iaxs[callno]->lagid = iaxs[callno]->pingid = -1;
    iaxs[x] = iaxs[callno];
    iaxs[x]->callno = x;
 
    /* since we copied over the pvt from a different callno, make sure the old entry is replaced
     * before assigning the new one */
    if (iaxs[x]->callno_entry) {
       iax2_sched_add(
          sched,
          MIN_REUSE_TIME * 1000,
          replace_callno,
          CALLNO_ENTRY_TO_PTR(iaxs[x]->callno_entry));
 
    }
    iaxs[x]->callno_entry = entry;
 
    iaxs[callno] = NULL;
    /* Update the two timers that should have been started */
    iaxs[x]->pingid = iax2_sched_add(sched,
       ping_time * 1000, send_ping, (void *)(long)x);
    iaxs[x]->lagid = iax2_sched_add(sched,
       lagrq_time * 1000, send_lagrq, (void *)(long)x);
 
    if (locked)
       ast_mutex_unlock(&iaxsl[callno]);
    res = x;
    if (!locked)
       ast_mutex_unlock(&iaxsl[x]);
 
    /* We moved this call from a non-trunked to a trunked call */
    ast_debug(1, "Made call %d into trunk call %d\n", callno, x);
 
    return res;
 }

◆ manager_iax2_show_netstats()

static int manager_iax2_show_netstats	(	struct mansession *	s,
		const struct message *	m
	)

static

Definition at line 7198 of file chan_iax2.c.

References ast_cli_netstats(), astman_append(), and RESULT_SUCCESS.

Referenced by load_module().

 {
    ast_cli_netstats(s, -1, 0);
    astman_append(s, "\r\n");
    return RESULT_SUCCESS;
 }

◆ manager_iax2_show_peer_list()

static int manager_iax2_show_peer_list	(	struct mansession *	s,
		const struct message *	m
	)

static

callback to display iax peers in manager format

Definition at line 7267 of file chan_iax2.c.

References _iax2_show_peers_one(), ao2_iterator_destroy(), ao2_iterator_init(), ao2_iterator_next, ast_strlen_zero, astman_get_header(), astman_send_list_complete_end(), astman_send_list_complete_start(), astman_send_listack(), show_peers_context::havepattern, show_peers_context::idtext, NULL, peer_unref(), RESULT_SUCCESS, and show_peers_context::total_peers.

Referenced by load_module().

 {
    struct show_peers_context cont = {
       .havepattern = 0,
       .idtext = "",
       .registeredonly = 0,
 
       .peerlist = 1,
 
       .total_peers = 0,
       .online_peers = 0,
       .offline_peers = 0,
       .unmonitored_peers = 0,
    };
 
    struct iax2_peer *peer = NULL;
    struct ao2_iterator i;
 
    const char *id = astman_get_header(m,"ActionID");
 
    if (!ast_strlen_zero(id)) {
       snprintf(cont.idtext, sizeof(cont.idtext), "ActionID: %s\r\n", id);
    }
 
    astman_send_listack(s, m, "IAX Peer status list will follow", "start");
 
    i = ao2_iterator_init(peers, 0);
    for (; (peer = ao2_iterator_next(&i)); peer_unref(peer)) {
       _iax2_show_peers_one(-1, s, &cont, peer);
    }
    ao2_iterator_destroy(&i);
 
    astman_send_list_complete_start(s, m, "PeerlistComplete", cont.total_peers);
    astman_send_list_complete_end(s);
 
    return RESULT_SUCCESS;
 }

◆ manager_iax2_show_peers()

static int manager_iax2_show_peers	(	struct mansession *	s,
		const struct message *	m
	)

static

callback to display iax peers in manager

Definition at line 7245 of file chan_iax2.c.

References __iax2_show_peers(), ast_strlen_zero, astman_get_header(), astman_send_list_complete_end(), astman_send_list_complete_start(), astman_send_listack(), and total.

Referenced by load_module().

 {
    static const char * const a[] = { "iax2", "show", "peers" };
    const char *id = astman_get_header(m,"ActionID");
    char idtext[256] = "";
    int total = 0;
 
    if (!ast_strlen_zero(id))
       snprintf(idtext, sizeof(idtext), "ActionID: %s\r\n", id);
 
    astman_send_listack(s, m, "Peer status list will follow", "start");
 
    /* List the peers in separate manager events */
    __iax2_show_peers(-1, &total, s, 3, a);
 
    /* Send final confirmation */
    astman_send_list_complete_start(s, m, "PeerlistComplete", total);
    astman_send_list_complete_end(s);
    return 0;
 }

◆ manager_iax2_show_registry()

static int manager_iax2_show_registry	(	struct mansession *	s,
		const struct message *	m
	)

static

Definition at line 7369 of file chan_iax2.c.

References iax2_registry::addr, AST_LIST_LOCK, AST_LIST_TRAVERSE, AST_LIST_UNLOCK, ast_sockaddr_isnull(), ast_sockaddr_stringify(), ast_strlen_zero, astman_append(), astman_get_header(), astman_send_list_complete_end(), astman_send_list_complete_start(), astman_send_listack(), iax2_registry::dnsmgr, host, NULL, iax2_registry::refresh, iax2_registry::regstate, regstate2str(), total, and iax2_registry::username.

Referenced by load_module().

 {
    const char *id = astman_get_header(m, "ActionID");
    struct iax2_registry *reg = NULL;
    char idtext[256] = "";
    char host[80] = "";
    char perceived[80] = "";
    int total = 0;
 
    if (!ast_strlen_zero(id))
       snprintf(idtext, sizeof(idtext), "ActionID: %s\r\n", id);
 
    astman_send_listack(s, m, "Registrations will follow", "start");
 
    AST_LIST_LOCK(&registrations);
    AST_LIST_TRAVERSE(&registrations, reg, entry) {
       snprintf(host, sizeof(host), "%s", ast_sockaddr_stringify(&reg->addr));
 
       snprintf(perceived, sizeof(perceived), "%s", ast_sockaddr_isnull(&reg->addr) ? "<Unregistered>" : ast_sockaddr_stringify(&reg->addr));
 
       astman_append(s,
          "Event: RegistryEntry\r\n"
          "%s"
          "Host: %s\r\n"
          "DNSmanager: %s\r\n"
          "Username: %s\r\n"
          "Perceived: %s\r\n"
          "Refresh: %d\r\n"
          "State: %s\r\n"
          "\r\n", idtext, host, (reg->dnsmgr) ? "Y" : "N", reg->username, perceived,
          reg->refresh, regstate2str(reg->regstate));
 
       total++;
    }
    AST_LIST_UNLOCK(&registrations);
 
    astman_send_list_complete_start(s, m, "RegistrationsComplete", total);
    astman_send_list_complete_end(s);
 
    return 0;
 }

◆ match()

static int match	(	struct ast_sockaddr *	addr,
		unsigned short	callno,
		unsigned short	dcallno,
		const struct chan_iax2_pvt *	cur,
		int	check_dcallno
	)

static

Definition at line 2315 of file chan_iax2.c.

References chan_iax2_pvt::addr, ast_sockaddr_cmp(), chan_iax2_pvt::callno, chan_iax2_pvt::peercallno, chan_iax2_pvt::transfer, TRANSFER_MEDIAPASS, chan_iax2_pvt::transfercallno, and chan_iax2_pvt::transferring.

Referenced by __find_callno(), __get_header(), aco_process_config(), action_listcategories(), ast_cdr_generic_unregister(), ast_msg_handler_register(), ast_msg_handler_unregister(), ast_msg_tech_register(), ast_msg_tech_unregister(), ast_namedgroups_intersect(), ast_parse_device_state(), ast_srtp_add_stream(), ast_srtp_change_source(), ast_xml_doc_item_cmp(), async_callback(), check_blacklist(), cli_print_body(), cli_show_module_options(), cli_show_module_type(), common_identify(), find_by_name(), find_command(), find_option_cb(), generic_mute_unmute_helper(), get_device_state_causing_channels(), handle_updates(), has_destination_cb(), internal_aco_type_find(), internal_ao2_traverse(), kick_conference_participant(), lua_find_extension(), misdn_update_redirecting(), namedgroup_match(), nominal_sync_run(), pbx_find_extension(), pvt_cmp_cb(), read_dirs_cb(), realtime_switch_common(), sipinfo_send(), skel_level_cmp(), test_item_cmp(), transfercallno_pvt_cmp_cb(), xmldoc_attribute_match(), xmldoc_get_syntax_config_object(), and xmpp_config_cmp().

 {
    if (!ast_sockaddr_cmp(&cur->addr, addr)) {
       /* This is the main host */
       if ( (cur->peercallno == 0 || cur->peercallno == callno) &&
           (check_dcallno ? dcallno == cur->callno : 1) ) {
          /* That's us.  Be sure we keep track of the peer call number */
          return 1;
       }
    }
    if (!ast_sockaddr_cmp(&cur->transfer, addr) && cur->transferring) {
       /* We're transferring */
       if ((dcallno == cur->callno) || (cur->transferring == TRANSFER_MEDIAPASS && cur->transfercallno == callno))
          return 1;
    }
    return 0;
 }

◆ memcpy_decrypt()

static void memcpy_decrypt	(	unsigned char *	dst,
		const unsigned char *	src,
		int	len,
		ast_aes_decrypt_key *	dcx
	)

static

Definition at line 6381 of file chan_iax2.c.

References ast_aes_decrypt(), ast_log, len(), and LOG_WARNING.

Referenced by decode_frame().

 {
 #if 0
    /* Debug with "fake encryption" */
    int x;
    if (len % 16)
       ast_log(LOG_WARNING, "len should be multiple of 16, not %d!\n", len);
    for (x=0;x<len;x++)
       dst[x] = src[x] ^ 0xff;
 #else
    unsigned char lastblock[16] = { 0 };
    int x;
    while(len > 0) {
       ast_aes_decrypt(src, dst, dcx);
       for (x=0;x<16;x++)
          dst[x] ^= lastblock[x];
       memcpy(lastblock, src, sizeof(lastblock));
       dst += 16;
       src += 16;
       len -= 16;
    }
 #endif
 }

◆ memcpy_encrypt()

static void memcpy_encrypt	(	unsigned char *	dst,
		const unsigned char *	src,
		int	len,
		ast_aes_encrypt_key *	ecx
	)

static

Definition at line 6405 of file chan_iax2.c.

References ast_aes_encrypt(), ast_log, len(), and LOG_WARNING.

Referenced by encrypt_frame().

 {
 #if 0
    /* Debug with "fake encryption" */
    int x;
    if (len % 16)
       ast_log(LOG_WARNING, "len should be multiple of 16, not %d!\n", len);
    for (x=0;x<len;x++)
       dst[x] = src[x] ^ 0xff;
 #else
    unsigned char curblock[16] = { 0 };
    int x;
    while(len > 0) {
       for (x=0;x<16;x++)
          curblock[x] ^= src[x];
       ast_aes_encrypt(curblock, dst, ecx);
       memcpy(curblock, dst, sizeof(curblock));
       dst += 16;
       src += 16;
       len -= 16;
    }
 #endif
 }

◆ merge_encryption()

static void merge_encryption	(	struct chan_iax2_pvt *	p,
		unsigned int	enc
	)

static

Definition at line 8034 of file chan_iax2.c.

References chan_iax2_pvt::encmethods, IAX_ENCRYPT_AES128, IAX_ENCRYPT_KEYROTATE, and chan_iax2_pvt::keyrotateid.

Referenced by authenticate_reply(), and socket_process_helper().

 {
    /* Select exactly one common encryption if there are any */
    p->encmethods &= enc;
    if (p->encmethods) {
       if (!(p->encmethods & IAX_ENCRYPT_KEYROTATE)){ /* if key rotation is not supported, turn off keyrotation. */
          p->keyrotateid = -2;
       }
       if (p->encmethods & IAX_ENCRYPT_AES128)
          p->encmethods = IAX_ENCRYPT_AES128;
       else
          p->encmethods = 0;
    }
 }

◆ network_change_sched_cb()

static int network_change_sched_cb ( const void * data )

static

Definition at line 1485 of file chan_iax2.c.

References AST_LIST_LOCK, AST_LIST_TRAVERSE, AST_LIST_UNLOCK, iax2_do_register(), and network_change_sched_id.

Referenced by network_change_stasis_cb().

 {
    struct iax2_registry *reg;
    network_change_sched_id = -1;
    AST_LIST_LOCK(&registrations);
    AST_LIST_TRAVERSE(&registrations, reg, entry) {
       iax2_do_register(reg);
    }
    AST_LIST_UNLOCK(&registrations);
 
    return 0;
 }

◆ network_change_stasis_cb()

static void network_change_stasis_cb	(	void *	data,
		struct stasis_subscription *	sub,
		struct stasis_message *	message
	)

static

Definition at line 1498 of file chan_iax2.c.

References ast_network_change_type(), ast_verb, iax2_sched_add(), network_change_sched_cb(), network_change_sched_id, NULL, and stasis_message_type().

Referenced by jb_debug_output().

 {
    /* This callback is only concerned with network change messages from the system topic. */
    if (stasis_message_type(message) != ast_network_change_type()) {
       return;
    }
 
    ast_verb(1, "IAX, got a network change message, renewing all IAX registrations.\n");
    if (network_change_sched_id == -1) {
       network_change_sched_id = iax2_sched_add(sched, 1000, network_change_sched_cb, NULL);
    }
 }

◆ network_change_stasis_subscribe()

static void network_change_stasis_subscribe ( void )

static

Definition at line 1455 of file chan_iax2.c.

References ast_network_change_type(), ast_system_topic(), NULL, stasis_subscribe, stasis_subscription_accept_message_type(), STASIS_SUBSCRIPTION_FILTER_SELECTIVE, and stasis_subscription_set_filter().

Referenced by load_module(), and set_config().

 {
    if (!network_change_sub) {
       network_change_sub = stasis_subscribe(ast_system_topic(),
          network_change_stasis_cb, NULL);
       stasis_subscription_accept_message_type(network_change_sub, ast_network_change_type());
       stasis_subscription_set_filter(network_change_sub, STASIS_SUBSCRIPTION_FILTER_SELECTIVE);
    }
 }

◆ network_change_stasis_unsubscribe()

static void network_change_stasis_unsubscribe ( void )

static

Definition at line 1465 of file chan_iax2.c.

References stasis_unsubscribe_and_join().

Referenced by __unload_module(), and set_config().

 {
    network_change_sub = stasis_unsubscribe_and_join(network_change_sub);
 }

◆ network_thread()

static void* network_thread ( void * ignore )

static

Definition at line 12575 of file chan_iax2.c.

References ast_io_add(), AST_IO_IN, AST_IO_PRI, ast_io_wait(), ast_log, ast_timer_fd(), errno, LOG_ERROR, NULL, and timing_read().

Referenced by start_network_thread().

 {
    int res;
 
    if (timer) {
       ast_io_add(io, ast_timer_fd(timer), timing_read, AST_IO_IN | AST_IO_PRI, NULL);
    }
 
    for (;;) {
       pthread_testcancel();
       /* Wake up once a second just in case SIGURG was sent while
        * we weren't in poll(), to make sure we don't hang when trying
        * to unload. */
       res = ast_io_wait(io, 1000);
       /* Timeout(=0), and EINTR is not a thread exit condition. We do
        * not want to exit the thread loop on these conditions. */
       if (res < 0 && errno != -EINTR) {
          ast_log(LOG_ERROR, "IAX2 network thread unexpected exit: %s\n", strerror(errno));
          break;
       }
    }
 
    return NULL;
 }

◆ new_iax()

static struct chan_iax2_pvt* new_iax	(	struct ast_sockaddr *	addr,
		const char *	host
	)

static

Definition at line 2243 of file chan_iax2.c.

References ao2_alloc, ao2_ref, AST_LIST_HEAD_INIT_NOLOCK, ast_string_field_init, ast_string_field_set, chan_iax2_pvt::authid, chan_iax2_pvt::autoid, chan_iax2_pvt::dpentries, exten, chan_iax2_pvt::hold_signaling, chan_iax2_pvt::initid, chan_iax2_pvt::jb, jb_new(), jb_setconf(), chan_iax2_pvt::jbid, jittertargetextra, chan_iax2_pvt::keyrotateid, chan_iax2_pvt::lagid, jb_conf::max_contig_interp, jb_conf::max_jitterbuf, maxjitterbuffer, maxjitterinterps, NULL, chan_iax2_pvt::pingid, chan_iax2_pvt::prefs, prefs_global, pvt_destructor(), jb_conf::resync_threshold, resyncthreshold, chan_iax2_pvt::signaling_queue, jb_conf::target_extra, and tmp().

Referenced by __find_callno().

 {
    struct chan_iax2_pvt *tmp;
    jb_conf jbconf;
 
    if (!(tmp = ao2_alloc(sizeof(*tmp), pvt_destructor))) {
       return NULL;
    }
 
    tmp->pingid = -1;
    tmp->lagid = -1;
    tmp->autoid = -1;
    tmp->authid = -1;
    tmp->initid = -1;
    tmp->keyrotateid = -1;
    tmp->jbid = -1;
 
    if (ast_string_field_init(tmp, 32)) {
       ao2_ref(tmp, -1);
       tmp = NULL;
       return NULL;
    }
 
    tmp->prefs = prefs_global;
 
    ast_string_field_set(tmp,exten, "s");
    ast_string_field_set(tmp,host, host);
 
    tmp->jb = jb_new();
    jbconf.max_jitterbuf = maxjitterbuffer;
    jbconf.resync_threshold = resyncthreshold;
    jbconf.max_contig_interp = maxjitterinterps;
    jbconf.target_extra = jittertargetextra;
    jb_setconf(tmp->jb,&jbconf);
 
    AST_LIST_HEAD_INIT_NOLOCK(&tmp->dpentries);
 
    tmp->hold_signaling = 1;
    AST_LIST_HEAD_INIT_NOLOCK(&tmp->signaling_queue);
 
    return tmp;
 }

◆ parse_dial_string()

static void parse_dial_string	(	char *	data,
		struct parsed_dial_string *	pds
	)

static

Parses an IAX dial string into its component parts.

Parameters

data	the string to be parsed
pds	pointer to a `struct` `parsed_dial_string` to be filled in

Returns: nothing

This function parses the string and fills the structure with pointers to its component parts. The input string will be modified.

Note: This function supports both plaintext passwords and RSA key names; if the password string is formatted as '[keyname]', then the keyname will be placed into the key field, and the password field will be set to NULL.; The dial string format is: [username[:password]@]peer[:port][/exten[]][/options]

Definition at line 5035 of file chan_iax2.c.

References ast_strip_quoted(), ast_strlen_zero, parsed_dial_string::context, stasis_subscription::data, parsed_dial_string::exten, parsed_dial_string::key, NULL, parsed_dial_string::options, parsed_dial_string::password, parsed_dial_string::peer, parsed_dial_string::port, strsep(), and parsed_dial_string::username.

Referenced by cache_get_callno_locked(), iax2_call(), iax2_devicestate(), and iax2_request().

 {
    if (ast_strlen_zero(data))
       return;
 
    pds->peer = strsep(&data, "/");
    pds->exten = strsep(&data, "/");
    pds->options = data;
 
    if (pds->exten) {
       data = pds->exten;
       pds->exten = strsep(&data, "@");
       pds->context = data;
    }
 
    if (strchr(pds->peer, '@')) {
       data = pds->peer;
       pds->username = strsep(&data, "@");
       pds->peer = data;
    }
 
    if (pds->username) {
       data = pds->username;
       pds->username = strsep(&data, ":");
       pds->password = data;
    }
 
    data = pds->peer;
    pds->peer = strsep(&data, ":");
    pds->port = data;
 
    /*
     * Check for a key name wrapped in [] in the password position.
     * If found, move it to the key field instead.
     */
    if (pds->password && (pds->password[0] == '[')) {
       pds->key = ast_strip_quoted(pds->password, "[", "]");
       pds->password = NULL;
    }
 }

◆ peer_cmp_cb()

static int peer_cmp_cb	(	void *	obj,
		void *	arg,
		int	flags
	)

static

Note: The only member of the peer passed here guaranteed to be set is the name field

Definition at line 1973 of file chan_iax2.c.

References CMP_MATCH, CMP_STOP, iax2_peer::name, and OBJ_KEY.

Referenced by load_objects().

 {
    struct iax2_peer *peer = obj, *peer2 = arg;
    const char *name = arg;
 
    return !strcmp(peer->name, flags & OBJ_KEY ? name : peer2->name) ?
          CMP_MATCH | CMP_STOP : 0;
 }

◆ peer_delme_cb()

static int peer_delme_cb	(	void *	obj,
		void *	arg,
		int	flags
	)

static

Definition at line 13381 of file chan_iax2.c.

References ast_set_flag64, and IAX_DELME.

Referenced by delete_users().

 {
    struct iax2_peer *peer = obj;
 
    ast_set_flag64(peer, IAX_DELME);
 
    return 0;
 }

◆ peer_destructor()

static void peer_destructor ( void * obj )

static

Definition at line 12766 of file chan_iax2.c.

References iax2_peer::acl, ast_dnsmgr_release(), ast_endpoint_shutdown(), ast_free_acl_list(), ast_mutex_lock, ast_mutex_unlock, ast_mwi_unsubscribe(), ast_string_field_free_memory, iax2_peer::callno, iax2_peer::dnsmgr, iax2_peer::endpoint, iax2_destroy(), iax2_peer::mwi_event_sub, and register_peer_exten().

Referenced by build_peer().

 {
    struct iax2_peer *peer = obj;
    int callno = peer->callno;
 
    ast_free_acl_list(peer->acl);
 
    if (callno > 0) {
       ast_mutex_lock(&iaxsl[callno]);
       iax2_destroy(callno);
       ast_mutex_unlock(&iaxsl[callno]);
    }
 
    register_peer_exten(peer, 0);
 
    if (peer->dnsmgr)
       ast_dnsmgr_release(peer->dnsmgr);
 
    if (peer->mwi_event_sub) {
       peer->mwi_event_sub = ast_mwi_unsubscribe(peer->mwi_event_sub);
    }
 
    ast_string_field_free_memory(peer);
 
    ast_endpoint_shutdown(peer->endpoint);
 }

◆ peer_hash_cb()

static int peer_hash_cb	(	const void *	obj,
		const int	flags
	)

static

Note: The only member of the peer passed here guaranteed to be set is the name field

Definition at line 1962 of file chan_iax2.c.

References ast_str_hash(), iax2_peer::name, and OBJ_KEY.

Referenced by load_objects().

 {
    const struct iax2_peer *peer = obj;
    const char *name = obj;
 
    return ast_str_hash(flags & OBJ_KEY ? name : peer->name);
 }

◆ peer_ref()

static struct iax2_peer* peer_ref ( struct iax2_peer * peer )

static

Definition at line 2022 of file chan_iax2.c.

References ao2_ref.

Referenced by __iax2_poke_noanswer(), handle_cli_iax2_prune_realtime(), handle_cli_iax2_unregister(), iax2_poke_peer(), realtime_peer(), reg_source_db(), socket_process_helper(), and update_registry().

 {
    ao2_ref(peer, +1);
    return peer;
 }

◆ peer_set_sock_cb()

static int peer_set_sock_cb	(	void *	obj,
		void *	arg,
		int	flags
	)

static

Definition at line 14689 of file chan_iax2.c.

References defaultsockfd, and iax2_peer::sockfd.

Referenced by load_module().

 {
    struct iax2_peer *peer = obj;
 
    if (peer->sockfd < 0)
       peer->sockfd = defaultsockfd;
 
    return 0;
 }

◆ peer_set_srcaddr()

static int peer_set_srcaddr	(	struct iax2_peer *	peer,
		const char *	srcaddr
	)

static

Parse the "sourceaddress" value, lookup in netsock list and set peer's sockfd. Defaults to defaultsockfd if not found.

Definition at line 12696 of file chan_iax2.c.

References AST_AF_UNSPEC, ast_debug, ast_get_ip(), ast_log, ast_netsock_bind(), ast_netsock_find(), ast_netsock_sockfd(), ast_netsock_unref(), ast_sockaddr_parse(), ast_sockaddr_set_port, ast_sockaddr_split_hostport(), ast_strdupa, check_srcaddr(), defaultsockfd, host, IAX_DEFAULT_PORTNO, LOG_WARNING, iax2_peer::name, NULL, qos, socket_read(), ast_netsock::sockfd, iax2_peer::sockfd, ast_sockaddr::ss, and tmp().

Referenced by build_peer().

 {
    struct ast_sockaddr addr;
    int nonlocal = 1;
    int port = IAX_DEFAULT_PORTNO;
    int sockfd = defaultsockfd;
    char *tmp;
    char *host;
    char *portstr;
 
    tmp = ast_strdupa(srcaddr);
    ast_sockaddr_split_hostport(tmp, &host, &portstr, 0);
 
    if (portstr) {
       port = atoi(portstr);
       if (port < 1)
          port = IAX_DEFAULT_PORTNO;
    }
 
    addr.ss.ss_family = AST_AF_UNSPEC;
    if (!ast_get_ip(&addr, host)) {
       struct ast_netsock *sock;
 
       if (check_srcaddr(&addr) == 0) {
          /* ip address valid. */
          ast_sockaddr_set_port(&addr, port);
 
          if (!(sock = ast_netsock_find(netsock, &addr)))
             sock = ast_netsock_find(outsock, &addr);
          if (sock) {
             sockfd = ast_netsock_sockfd(sock);
             nonlocal = 0;
          } else {
             /* INADDR_ANY matches anyway! */
             ast_sockaddr_parse(&addr, "0.0.0.0", 0);
             ast_sockaddr_set_port(&addr, port);
             if (ast_netsock_find(netsock, &addr)) {
                sock = ast_netsock_bind(outsock, io, srcaddr, port, qos.tos, qos.cos, socket_read, NULL);
                if (sock) {
                   sockfd = ast_netsock_sockfd(sock);
                   ast_netsock_unref(sock);
                   nonlocal = 0;
                } else {
                   nonlocal = 2;
                }
             }
          }
       }
    }
 
    peer->sockfd = sockfd;
 
    if (nonlocal == 1) {
       ast_log(LOG_WARNING,
          "Non-local or unbound address specified (%s) in sourceaddress for '%s', reverting to default\n",
          srcaddr,
          peer->name);
       return -1;
    } else if (nonlocal == 2) {
       ast_log(LOG_WARNING,
          "Unable to bind to sourceaddress '%s' for '%s', reverting to default\n",
          srcaddr,
          peer->name);
       return -1;
    } else {
       ast_debug(1, "Using sourceaddress %s for '%s'\n", srcaddr, peer->name);
       return 0;
    }
 }

◆ peer_status()

static int peer_status	(	struct iax2_peer *	peer,
		char *	status,
		int	statuslen
	)

static

peer_status: Report Peer status in character string

Definition at line 3792 of file chan_iax2.c.

References ast_copy_string(), iax2_peer::lastms, and iax2_peer::maxms.

Referenced by _iax2_show_peers_one(), function_iaxpeer(), and handle_cli_iax2_show_peer().

 {
    int res = 0;
    if (peer->maxms) {
       if (peer->lastms < 0) {
          ast_copy_string(status, "UNREACHABLE", statuslen);
       } else if (peer->lastms > peer->maxms) {
          snprintf(status, statuslen, "LAGGED (%d ms)", peer->lastms);
          res = 1;
       } else if (peer->lastms) {
          snprintf(status, statuslen, "OK (%d ms)", peer->lastms);
          res = 1;
       } else {
          ast_copy_string(status, "UNKNOWN", statuslen);
       }
    } else {
       ast_copy_string(status, "Unmonitored", statuslen);
       res = -1;
    }
    return res;
 }

◆ peer_unref()

static struct iax2_peer* peer_unref ( struct iax2_peer * peer )

static

Definition at line 2028 of file chan_iax2.c.

References ao2_ref, and NULL.

Referenced by __expire_registry(), __iax2_poke_noanswer(), __iax2_poke_peer_s(), __iax2_show_peers(), authenticate_reply(), build_peer(), calltoken_required(), complete_iax2_peers(), complete_iax2_unregister(), create_addr(), function_iaxpeer(), handle_cli_iax2_prune_realtime(), handle_cli_iax2_show_peer(), handle_cli_iax2_unregister(), iax2_devicestate(), iax2_getpeername(), iax2_getpeertrunk(), iax2_poke_noanswer(), iax2_poke_peer(), manager_iax2_show_peer_list(), poke_all_peers(), prune_peers(), realtime_peer(), reg_source_db(), register_verify(), registry_authrequest(), requirecalltoken_mark_auto(), set_config(), socket_process_helper(), unlink_peer(), and update_registry().

 {
    ao2_ref(peer, -1);
    return NULL;
 }

◆ peercnt_add()

static int peercnt_add ( struct ast_sockaddr * addr )

static

Definition at line 2631 of file chan_iax2.c.

References peercnt::addr, ao2_alloc, ao2_find, ao2_link, ao2_lock, ao2_ref, ao2_unlock, ast_debug, ast_log, ast_sockaddr_copy(), ast_sockaddr_stringify_addr(), peercnt::cur, peercnt::limit, LOG_ERROR, NULL, OBJ_POINTER, and set_peercnt_limit().

Referenced by __find_callno(), and complete_transfer().

 {
    struct peercnt *peercnt;
    int res = 0;
    struct peercnt tmp;
 
    ast_sockaddr_copy(&tmp.addr, addr);
 
    /* Reasoning for peercnts container lock:  Two identical ip addresses
     * could be added by different threads at the "same time". Without the container
     * lock, both threads could alloc space for the same object and attempt
     * to link to table.  With the lock, one would create the object and link
     * to table while the other would find the already created peercnt object
     * rather than creating a new one. */
    ao2_lock(peercnts);
    if ((peercnt = ao2_find(peercnts, &tmp, OBJ_POINTER))) {
       ao2_lock(peercnt);
    } else if ((peercnt = ao2_alloc(sizeof(*peercnt), NULL))) {
       ao2_lock(peercnt);
       /* create and set defaults */
       ast_sockaddr_copy(&peercnt->addr, addr);
       set_peercnt_limit(peercnt);
       /* guarantees it does not go away after unlocking table
        * ao2_find automatically adds this */
       ao2_link(peercnts, peercnt);
    } else {
       ao2_unlock(peercnts);
       return -1;
    }
 
    /* check to see if the address has hit its callno limit.  If not increment cur. */
    if (peercnt->limit > peercnt->cur) {
       peercnt->cur++;
       ast_debug(1, "ip callno count incremented to %d for %s\n", peercnt->cur, ast_sockaddr_stringify_addr(addr));
    } else { /* max num call numbers for this peer has been reached! */
       ast_log(LOG_ERROR, "maxcallnumber limit of %d for %s has been reached!\n", peercnt->limit, ast_sockaddr_stringify_addr(addr));
       res = -1;
    }
 
    /* clean up locks and ref count */
    ao2_unlock(peercnt);
    ao2_unlock(peercnts);
    ao2_ref(peercnt, -1); /* decrement ref from find/alloc, only the container ref remains. */
 
    return res;
 }

◆ peercnt_cmp_cb()

static int peercnt_cmp_cb	(	void *	obj,
		void *	arg,
		int	flags
	)

static

Definition at line 2469 of file chan_iax2.c.

References peercnt::addr, ast_sockaddr_cmp_addr(), CMP_MATCH, and CMP_STOP.

Referenced by load_objects().

 {
    struct peercnt *peercnt1 = obj, *peercnt2 = arg;
    return !ast_sockaddr_cmp_addr(&peercnt1->addr, &peercnt2->addr) ? CMP_MATCH | CMP_STOP : 0;
 }

◆ peercnt_hash_cb()

static int peercnt_hash_cb	(	const void *	obj,
		const int	flags
	)

static

Definition at line 2459 of file chan_iax2.c.

References peercnt::addr, ast_sockaddr_hash(), and ast_sockaddr_isnull().

Referenced by load_objects().

 {
    const struct peercnt *peercnt = obj;
 
    if (ast_sockaddr_isnull(&peercnt->addr)) {
       return 0;
    }
    return ast_sockaddr_hash(&peercnt->addr);
 }

◆ peercnt_modify()

static void peercnt_modify	(	unsigned char	reg,
		uint16_t	limit,
		struct ast_sockaddr *	sockaddr
	)

static

Definition at line 2603 of file chan_iax2.c.

References peercnt::addr, ao2_find, ao2_ref, ast_debug, ast_sockaddr_copy(), ast_sockaddr_stringify_addr(), peercnt::limit, OBJ_POINTER, peercnt::reg, and set_peercnt_limit().

Referenced by __expire_registry(), build_peer(), and update_registry().

 {
    /* this function turns off and on custom callno limits set by peer registration */
    struct peercnt *peercnt;
    struct peercnt tmp;
 
    ast_sockaddr_copy(&tmp.addr, sockaddr);
 
    if ((peercnt = ao2_find(peercnts, &tmp, OBJ_POINTER))) {
       peercnt->reg = reg;
       if (limit) {
          peercnt->limit = limit;
       } else {
          set_peercnt_limit(peercnt);
       }
       ast_debug(1, "peercnt entry %s modified limit:%d registered:%d", ast_sockaddr_stringify_addr(sockaddr), peercnt->limit, peercnt->reg);
       ao2_ref(peercnt, -1); /* decrement ref from find */
    }
 }

◆ peercnt_remove()

static void peercnt_remove ( struct peercnt * peercnt )

static

Definition at line 2682 of file chan_iax2.c.

References peercnt::addr, ao2_lock, ao2_unlink, ao2_unlock, ast_debug, ast_sockaddr_copy(), ast_sockaddr_stringify_addr(), and peercnt::cur.

Referenced by peercnt_remove_by_addr(), and peercnt_remove_cb().

 {
    struct ast_sockaddr addr;
 
    ast_sockaddr_copy(&addr, &peercnt->addr);
 
    /*
     * Container locked here since peercnt may be unlinked from
     * list.  If left unlocked, peercnt_add could try and grab this
     * entry from the table and modify it at the "same time" this
     * thread attemps to unlink it.
     */
    ao2_lock(peercnts);
    peercnt->cur--;
    ast_debug(1, "ip callno count decremented to %d for %s\n", peercnt->cur, ast_sockaddr_stringify_addr(&addr));
    /* if this was the last connection from the peer remove it from table */
    if (peercnt->cur == 0) {
       ao2_unlink(peercnts, peercnt);/* decrements ref from table, last ref is left to scheduler */
    }
    ao2_unlock(peercnts);
 }

◆ peercnt_remove_by_addr()

static int peercnt_remove_by_addr ( struct ast_sockaddr * addr )

static

Definition at line 2722 of file chan_iax2.c.

References peercnt::addr, ao2_find, ao2_ref, ast_sockaddr_copy(), OBJ_POINTER, and peercnt_remove().

Referenced by __find_callno(), and complete_transfer().

 {
    struct peercnt *peercnt;
    struct peercnt tmp;
 
    ast_sockaddr_copy(&tmp.addr, addr);
 
    if ((peercnt = ao2_find(peercnts, &tmp, OBJ_POINTER))) {
       peercnt_remove(peercnt);
       ao2_ref(peercnt, -1); /* decrement ref from find */
    }
    return 0;
 }

◆ peercnt_remove_cb()

static int peercnt_remove_cb ( const void * obj )

static

Definition at line 2708 of file chan_iax2.c.

References ao2_ref, and peercnt_remove().

Referenced by __unload_module(), and sched_delay_remove().

 {
    struct peercnt *peercnt = (struct peercnt *) obj;
 
    peercnt_remove(peercnt);
    ao2_ref(peercnt, -1); /* decrement ref from scheduler */
 
    return 0;
 }

◆ poke_all_peers()

static void poke_all_peers ( void )

static

Definition at line 13998 of file chan_iax2.c.

References ao2_iterator_destroy(), ao2_iterator_init(), ao2_iterator_next, iax2_poke_peer(), and peer_unref().

Referenced by reload_config().

 {
    struct ao2_iterator i;
    struct iax2_peer *peer;
 
    i = ao2_iterator_init(peers, 0);
    while ((peer = ao2_iterator_next(&i))) {
       iax2_poke_peer(peer, 0);
       peer_unref(peer);
    }
    ao2_iterator_destroy(&i);
 }

◆ prune_addr_range_cb()

static int prune_addr_range_cb	(	void *	obj,
		void *	arg,
		int	flags
	)

static

Definition at line 2592 of file chan_iax2.c.

References CMP_MATCH, and addr_range::delme.

Referenced by reload_config().

 {
    struct addr_range *addr_range = obj;
 
    return addr_range->delme ? CMP_MATCH : 0;
 }

◆ prune_peers()

static void prune_peers ( void )

static

Definition at line 13444 of file chan_iax2.c.

References ao2_iterator_destroy(), ao2_iterator_init(), ao2_iterator_next, ast_test_flag64, IAX_DELME, IAX_RTCACHEFRIENDS, peer_unref(), and unlink_peer().

Referenced by handle_cli_iax2_prune_realtime(), jb_debug_output(), register_peer_exten(), and reload_config().

 {
    struct iax2_peer *peer;
    struct ao2_iterator i;
 
    i = ao2_iterator_init(peers, 0);
    while ((peer = ao2_iterator_next(&i))) {
       if (ast_test_flag64(peer, IAX_DELME) || ast_test_flag64(peer, IAX_RTCACHEFRIENDS)) {
          unlink_peer(peer);
       }
       peer_unref(peer);
    }
    ao2_iterator_destroy(&i);
 }

◆ prune_users()

static void prune_users ( void )

static

Definition at line 13428 of file chan_iax2.c.

References ao2_iterator_destroy(), ao2_iterator_init(), ao2_iterator_next, ao2_unlink, ast_test_flag64, IAX_DELME, IAX_RTCACHEFRIENDS, user, and user_unref().

Referenced by handle_cli_iax2_prune_realtime(), jb_debug_output(), and reload_config().

 {
    struct iax2_user *user;
    struct ao2_iterator i;
 
    i = ao2_iterator_init(users, 0);
    while ((user = ao2_iterator_next(&i))) {
       if (ast_test_flag64(user, IAX_DELME) || ast_test_flag64(user, IAX_RTCACHEFRIENDS)) {
          ao2_unlink(users, user);
       }
       user_unref(user);
    }
    ao2_iterator_destroy(&i);
 }

◆ pvt_cmp_cb()

static int pvt_cmp_cb	(	void *	obj,
		void *	arg,
		int	flags
	)

static

Definition at line 14706 of file chan_iax2.c.

References CMP_MATCH, CMP_STOP, chan_iax2_pvt::frames_received, and match().

Referenced by load_objects().

 {
    struct chan_iax2_pvt *pvt = obj, *pvt2 = arg;
 
    /* The frames_received field is used to hold whether we're matching
     * against a full frame or not ... */
 
    return match(&pvt2->addr, pvt2->peercallno, pvt2->callno, pvt,
       pvt2->frames_received) ? CMP_MATCH | CMP_STOP : 0;
 }

◆ pvt_destructor()

static void pvt_destructor ( void * obj )

static

Definition at line 2196 of file chan_iax2.c.

References chan_iax2_pvt::addr, AST_LIST_REMOVE_HEAD, AST_LIST_TRAVERSE, ast_mutex_lock, ast_mutex_unlock, ast_set_flag64, ast_string_field_free_memory, ast_variables_destroy(), iax2_registry::callno, chan_iax2_pvt::callno, chan_iax2_pvt::callno_entry, jb_frame::data, frame_queue, free_signaling_queue_entry(), iax2_destroy_helper(), iax2_frame_free(), IAX_ALREADYGONE, chan_iax2_pvt::jb, jb_destroy(), jb_getall(), JB_OK, signaling_queue_entry::next, NULL, chan_iax2_pvt::owner, chan_iax2_pvt::reg, iax_frame::retries, sched_delay_remove(), chan_iax2_pvt::signaling_queue, and chan_iax2_pvt::vars.

Referenced by new_iax().

 {
    struct chan_iax2_pvt *pvt = obj;
    struct iax_frame *cur = NULL;
    struct signaling_queue_entry *s = NULL;
 
    ast_mutex_lock(&iaxsl[pvt->callno]);
 
    iax2_destroy_helper(pvt);
 
    sched_delay_remove(&pvt->addr, pvt->callno_entry);
    pvt->callno_entry = 0;
 
    /* Already gone */
    ast_set_flag64(pvt, IAX_ALREADYGONE);
 
    AST_LIST_TRAVERSE(&frame_queue[pvt->callno], cur, list) {
       /* Cancel any pending transmissions */
       cur->retries = -1;
    }
 
    ast_mutex_unlock(&iaxsl[pvt->callno]);
 
    while ((s = AST_LIST_REMOVE_HEAD(&pvt->signaling_queue, next))) {
       free_signaling_queue_entry(s);
    }
 
    if (pvt->reg) {
       pvt->reg->callno = 0;
    }
 
    if (!pvt->owner) {
       jb_frame frame;
       if (pvt->vars) {
           ast_variables_destroy(pvt->vars);
           pvt->vars = NULL;
       }
 
       while (jb_getall(pvt->jb, &frame) == JB_OK) {
          iax2_frame_free(frame.data);
       }
 
       jb_destroy(pvt->jb);
       ast_string_field_free_memory(pvt);
    }
 }

◆ pvt_hash_cb()

static int pvt_hash_cb	(	const void *	obj,
		const int	flags
	)

static

Definition at line 14699 of file chan_iax2.c.

References chan_iax2_pvt::peercallno.

Referenced by load_objects().

 {
    const struct chan_iax2_pvt *pvt = obj;
 
    return pvt->peercallno;
 }

◆ queue_signalling()

static int queue_signalling	(	struct chan_iax2_pvt *	pvt,
		struct ast_frame *	f
	)

static

All frames other than that of type AST_FRAME_IAX must be held until we have received a destination call number.

Definition at line 2171 of file chan_iax2.c.

References ast_calloc, AST_FRAME_IAX, AST_LIST_INSERT_TAIL, ast_malloc, ast_frame::data, ast_frame::datalen, signaling_queue_entry::f, ast_frame::frametype, free_signaling_queue_entry(), chan_iax2_pvt::hold_signaling, signaling_queue_entry::next, ast_frame::ptr, and chan_iax2_pvt::signaling_queue.

Referenced by __send_command().

 {
    struct signaling_queue_entry *qe;
 
    if (f->frametype == AST_FRAME_IAX || !pvt->hold_signaling) {
       return 1; /* do not queue this frame */
    } else if (!(qe = ast_calloc(1, sizeof(struct signaling_queue_entry)))) {
       return -1;  /* out of memory */
    }
 
    /* copy ast_frame into our queue entry */
    qe->f = *f;
    if (qe->f.datalen) {
       /* if there is data in this frame copy it over as well */
       if (!(qe->f.data.ptr = ast_malloc(qe->f.datalen))) {
          free_signaling_queue_entry(qe);
          return -1;
       }
       memcpy(qe->f.data.ptr, f->data.ptr, qe->f.datalen);
    }
    AST_LIST_INSERT_TAIL(&pvt->signaling_queue, qe, next);
 
    return 0;
 }

◆ raw_hangup()

static int raw_hangup	(	struct ast_sockaddr *	addr,
		unsigned short	src,
		unsigned short	dst,
		int	sockfd
	)

static

Definition at line 8018 of file chan_iax2.c.

References ast_debug, AST_FRAME_IAX, ast_sendto(), ast_sockaddr_stringify(), compress_subclass(), ast_iax2_full_hdr::csub, ast_iax2_full_hdr::dcallno, IAX_COMMAND_INVAL, IAX_FLAG_FULL, iax_outputframe(), ast_iax2_full_hdr::iseqno, NULL, ast_iax2_full_hdr::oseqno, ast_iax2_full_hdr::scallno, ast_iax2_full_hdr::ts, and ast_iax2_full_hdr::type.

Referenced by socket_process_helper().

 {
    struct ast_iax2_full_hdr fh;
    fh.scallno = htons(src | IAX_FLAG_FULL);
    fh.dcallno = htons(dst);
    fh.ts = 0;
    fh.oseqno = 0;
    fh.iseqno = 0;
    fh.type = AST_FRAME_IAX;
    fh.csub = compress_subclass(IAX_COMMAND_INVAL);
    iax_outputframe(NULL, &fh, 0, addr, 0);
 
    ast_debug(1, "Raw Hangup %s, src=%d, dst=%d\n", ast_sockaddr_stringify(addr), src, dst);
    return ast_sendto(sockfd, &fh, sizeof(fh), 0, addr);
 }

◆ realtime_peer()

static struct iax2_peer * realtime_peer	(	const char *	peername,
		struct ast_sockaddr *	addr
	)

static

Note: This function calls reg_source_db -> iax2_poke_peer -> find_callno, so do not call this with a pvt lock held.

Note: If this one loaded something, then we need to ensure that the host field matched. The only reason why we can't have this as a criteria is because we only have the IP address and the host field might be set as a name (and the reverse PTR might not match).

Definition at line 4359 of file chan_iax2.c.

References iax2_peer::addr, ao2_link, AST_AF_UNSPEC, ast_copy_flags64, ast_debug, ast_free, ast_get_time_t(), ast_load_realtime(), ast_log, ast_parse_arg(), AST_SCHED_DEL, ast_set_flag64, ast_sockaddr_cmp_addr(), ast_sockaddr_isnull(), ast_sockaddr_parse(), ast_sockaddr_port, ast_sockaddr_resolve(), ast_sockaddr_set_port, ast_sockaddr_stringify_addr(), ast_sockaddr_stringify_port(), ast_strdupa, ast_test_flag64, ast_variables_destroy(), build_peer(), iax2_peer::expire, iax2_sched_add(), IAX_DEFAULT_PORTNO, IAX_DEFAULT_REG_EXPIRE, IAX_DYNAMIC, IAX_RTAUTOCLEAR, IAX_RTCACHEFRIENDS, IAX_RTIGNOREREGEXPIRE, IAX_TEMPONLY, LOG_WARNING, ast_variable::name, iax2_peer::name, ast_variable::next, NULL, PARSE_ADDR, PARSE_IN_RANGE, PARSE_PORT_FORBID, PARSE_UINT32, peer_ref(), peer_unref(), realtime_update_peer(), reg_source_db(), SENTINEL, tmp(), ast_variable::value, and var.

Referenced by authenticate_reply(), calltoken_required(), find_peer(), and iax2_getpeername().

 {
    struct ast_variable *var = NULL;
    struct ast_variable *tmp;
    struct iax2_peer *peer=NULL;
    time_t regseconds = 0, nowtime;
    int dynamic=0;
    char *str_addr, *str_port;
 
    str_addr = ast_strdupa(ast_sockaddr_stringify_addr(addr));
    str_port = ast_strdupa(ast_sockaddr_stringify_port(addr));
 
    if (peername) {
       var = ast_load_realtime("iaxpeers", "name", peername, "host", "dynamic", SENTINEL);
       if (!var && !ast_sockaddr_isnull(addr)) {
          var = ast_load_realtime("iaxpeers", "name", peername, "host", str_addr, SENTINEL);
       }
    } else if (!ast_sockaddr_isnull(addr)) {
       var = ast_load_realtime("iaxpeers", "ipaddr", str_addr, "port", str_port, SENTINEL);
       if (var) {
          /* We'll need the peer name in order to build the structure! */
          for (tmp = var; tmp; tmp = tmp->next) {
             if (!strcasecmp(tmp->name, "name"))
                peername = tmp->value;
          }
       }
    }
    if (!var && peername) { /* Last ditch effort */
       var = ast_load_realtime("iaxpeers", "name", peername, SENTINEL);
       /*!\note
        * If this one loaded something, then we need to ensure that the host
        * field matched.  The only reason why we can't have this as a criteria
        * is because we only have the IP address and the host field might be
        * set as a name (and the reverse PTR might not match).
        */
       if (var && !ast_sockaddr_isnull(addr)) {
          for (tmp = var; tmp; tmp = tmp->next) {
             if (!strcasecmp(tmp->name, "host")) {
                struct ast_sockaddr *hostaddr = NULL;
 
                if (!ast_sockaddr_resolve(&hostaddr, tmp->value, PARSE_PORT_FORBID, AST_AF_UNSPEC)
                   || ast_sockaddr_cmp_addr(hostaddr, addr)) {
                   /* No match */
                   ast_variables_destroy(var);
                   var = NULL;
                }
                ast_free(hostaddr);
                break;
             }
          }
       }
    }
    if (!var)
       return NULL;
 
    peer = build_peer(peername, var, NULL, ast_test_flag64((&globalflags), IAX_RTCACHEFRIENDS) ? 0 : 1);
 
    if (!peer) {
       ast_variables_destroy(var);
       return NULL;
    }
 
    for (tmp = var; tmp; tmp = tmp->next) {
       /* Make sure it's not a user only... */
       if (!strcasecmp(tmp->name, "type")) {
          if (strcasecmp(tmp->value, "friend") &&
              strcasecmp(tmp->value, "peer")) {
             /* Whoops, we weren't supposed to exist! */
             peer = peer_unref(peer);
             break;
          }
       } else if (!strcasecmp(tmp->name, "regseconds")) {
          ast_get_time_t(tmp->value, &regseconds, 0, NULL);
       } else if (!strcasecmp(tmp->name, "ipaddr")) {
          int setport = ast_sockaddr_port(&peer->addr);
          if (ast_parse_arg(tmp->value, PARSE_ADDR | PARSE_PORT_FORBID, NULL)) {
             ast_log(LOG_WARNING, "Failed to parse sockaddr '%s' for ipaddr of realtime peer '%s'\n", tmp->value, tmp->name);
          } else {
             ast_sockaddr_parse(&peer->addr, tmp->value, 0);
          }
          ast_sockaddr_set_port(&peer->addr, setport);
       } else if (!strcasecmp(tmp->name, "port")) {
          int bindport;
          if (ast_parse_arg(tmp->value, PARSE_UINT32 | PARSE_IN_RANGE, &bindport, 0, 65535)) {
             bindport = IAX_DEFAULT_PORTNO;
          }
          ast_sockaddr_set_port(&peer->addr, bindport);
       } else if (!strcasecmp(tmp->name, "host")) {
          if (!strcasecmp(tmp->value, "dynamic"))
             dynamic = 1;
       }
    }
 
    ast_variables_destroy(var);
 
    if (ast_test_flag64((&globalflags), IAX_RTCACHEFRIENDS)) {
       ast_copy_flags64(peer, &globalflags, IAX_RTAUTOCLEAR|IAX_RTCACHEFRIENDS);
       if (ast_test_flag64(peer, IAX_RTAUTOCLEAR)) {
          if (peer->expire > -1) {
             if (!AST_SCHED_DEL(sched, peer->expire)) {
                peer->expire = -1;
                peer_unref(peer);
             }
          }
          peer->expire = iax2_sched_add(sched, (global_rtautoclear) * 1000, expire_registry, peer_ref(peer));
          if (peer->expire == -1)
             peer_unref(peer);
       }
       ao2_link(peers, peer);
       if (ast_test_flag64(peer, IAX_DYNAMIC))
          reg_source_db(peer);
    } else {
       ast_set_flag64(peer, IAX_TEMPONLY);
    }
 
    if (!ast_test_flag64(&globalflags, IAX_RTIGNOREREGEXPIRE) && dynamic) {
       time(&nowtime);
       if ((nowtime - regseconds) > IAX_DEFAULT_REG_EXPIRE) {
          memset(&peer->addr, 0, sizeof(peer->addr));
          realtime_update_peer(peer->name, &peer->addr, 0);
          ast_debug(1, "realtime_peer: Bah, '%s' is expired (%d/%d/%d)!\n",
             peername, (int)(nowtime - regseconds), (int)regseconds, (int)nowtime);
       }
       else {
          ast_debug(1, "realtime_peer: Registration for '%s' still active (%d/%d/%d)!\n",
             peername, (int)(nowtime - regseconds), (int)regseconds, (int)nowtime);
       }
    }
 
    return peer;
 }

◆ realtime_update_peer()

static void realtime_update_peer	(	const char *	peername,
		struct ast_sockaddr *	sockaddr,
		time_t	regtime
	)

static

Definition at line 4566 of file chan_iax2.c.

References ast_config_AST_SYSTEM_NAME, ast_sockaddr_isnull(), ast_sockaddr_stringify_addr(), ast_sockaddr_stringify_port(), ast_strdupa, ast_strlen_zero, ast_test_flag64, ast_update_realtime(), IAX_RTSAVE_SYSNAME, NULL, and SENTINEL.

Referenced by __expire_registry(), jb_debug_output(), realtime_peer(), and update_registry().

 {
    char regseconds[20];
    const char *sysname = ast_config_AST_SYSTEM_NAME;
    char *syslabel = NULL;
    char *port;
 
    if (ast_strlen_zero(sysname)) /* No system name, disable this */
       sysname = NULL;
    else if (ast_test_flag64(&globalflags, IAX_RTSAVE_SYSNAME))
       syslabel = "regserver";
 
    snprintf(regseconds, sizeof(regseconds), "%d", (int)regtime);
    port = ast_strdupa(ast_sockaddr_stringify_port(sockaddr));
    ast_update_realtime("iaxpeers", "name", peername,
       "ipaddr", ast_sockaddr_isnull(sockaddr) ? "" : ast_sockaddr_stringify_addr(sockaddr),
       "port", ast_sockaddr_isnull(sockaddr) ? "" : port,
       "regseconds", regseconds, syslabel, sysname, SENTINEL); /* note syslable can be NULL */
 }

◆ realtime_user()

static struct iax2_user * realtime_user	(	const char *	username,
		struct ast_sockaddr *	addr
	)

static

Note: If this one loaded something, then we need to ensure that the host field matched. The only reason why we can't have this as a criteria is because we only have the IP address and the host field might be set as a name (and the reverse PTR might not match).

Definition at line 4491 of file chan_iax2.c.

References ao2_link, AST_AF_UNSPEC, ast_free, ast_load_realtime(), ast_set_flag64, ast_sockaddr_cmp_addr(), ast_sockaddr_isnull(), ast_sockaddr_resolve(), ast_sockaddr_stringify_addr(), ast_sockaddr_stringify_port(), ast_strdupa, ast_test_flag64, ast_variables_destroy(), build_user(), IAX_RTCACHEFRIENDS, IAX_TEMPONLY, ast_variable::name, ast_variable::next, NULL, PARSE_PORT_FORBID, SENTINEL, tmp(), user, ast_variable::value, and var.

Referenced by calltoken_required(), and check_access().

 {
    struct ast_variable *var;
    struct ast_variable *tmp;
    struct iax2_user *user=NULL;
    char *str_addr, *str_port;
 
    str_addr = ast_strdupa(ast_sockaddr_stringify_addr(addr));
    str_port = ast_strdupa(ast_sockaddr_stringify_port(addr));
 
    var = ast_load_realtime("iaxusers", "name", username, "host", "dynamic", SENTINEL);
    if (!var)
       var = ast_load_realtime("iaxusers", "name", username, "host", str_addr, SENTINEL);
    if (!var && !ast_sockaddr_isnull(addr)) {
       var = ast_load_realtime("iaxusers", "name", username, "ipaddr", str_addr, "port", str_port, SENTINEL);
       if (!var)
          var = ast_load_realtime("iaxusers", "ipaddr", str_addr, "port", str_port, SENTINEL);
    }
    if (!var) { /* Last ditch effort */
       var = ast_load_realtime("iaxusers", "name", username, SENTINEL);
       /*!\note
        * If this one loaded something, then we need to ensure that the host
        * field matched.  The only reason why we can't have this as a criteria
        * is because we only have the IP address and the host field might be
        * set as a name (and the reverse PTR might not match).
        */
       if (var) {
          for (tmp = var; tmp; tmp = tmp->next) {
             if (!strcasecmp(tmp->name, "host")) {
                struct ast_sockaddr *hostaddr = NULL;
 
                if (!ast_sockaddr_resolve(&hostaddr, tmp->value, PARSE_PORT_FORBID, AST_AF_UNSPEC)
                   || ast_sockaddr_cmp_addr(hostaddr, addr)) {
                   /* No match */
                   ast_variables_destroy(var);
                   var = NULL;
                }
                ast_free(hostaddr);
                break;
             }
          }
       }
    }
    if (!var)
       return NULL;
 
    tmp = var;
    while(tmp) {
       /* Make sure it's not a peer only... */
       if (!strcasecmp(tmp->name, "type")) {
          if (strcasecmp(tmp->value, "friend") &&
              strcasecmp(tmp->value, "user")) {
             return NULL;
          }
       }
       tmp = tmp->next;
    }
 
    user = build_user(username, var, NULL, !ast_test_flag64((&globalflags), IAX_RTCACHEFRIENDS));
 
    ast_variables_destroy(var);
 
    if (!user)
       return NULL;
 
    if (ast_test_flag64((&globalflags), IAX_RTCACHEFRIENDS)) {
       ast_set_flag64(user, IAX_RTCACHEFRIENDS);
       ao2_link(users, user);
    } else {
       ast_set_flag64(user, IAX_TEMPONLY);
    }
 
    return user;
 }

◆ reg_source_db()

static void reg_source_db ( struct iax2_peer * p )

static

Definition at line 8948 of file chan_iax2.c.

References iax2_peer::addr, ast_db_get(), AST_DEVICE_UNKNOWN, AST_DEVSTATE_CACHABLE, ast_devstate_changed(), ast_log, AST_SCHED_DEL, ast_sockaddr_parse(), ast_sockaddr_stringify(), ast_test_flag64, ast_verb, iax2_peer::expire, iax2_peer::expiry, iax2_poke_peer(), iax2_regfunk, iax2_sched_add(), IAX_TEMPONLY, LOG_NOTICE, iax2_peer::name, PARSE_PORT_REQUIRE, peer_ref(), peer_unref(), and register_peer_exten().

Referenced by realtime_peer(), and set_config().

 {
    char data[80];
    char *expiry;
 
    if (ast_test_flag64(p, IAX_TEMPONLY) || ast_db_get("IAX/Registry", p->name, data, sizeof(data))) {
       return;
    }
 
    expiry = strrchr(data, ':');
    if (!expiry) {
       ast_log(LOG_NOTICE, "IAX/Registry astdb entry missing expiry: '%s'\n", data);
       return;
    }
    *expiry++ = '\0';
 
    if (!ast_sockaddr_parse(&p->addr, data, PARSE_PORT_REQUIRE)) {
       ast_log(LOG_NOTICE, "IAX/Registry astdb host:port invalid - '%s'\n", data);
       return;
    }
 
    p->expiry = atoi(expiry);
 
    ast_verb(3, "Seeding '%s' at %s for %d\n", p->name,
       ast_sockaddr_stringify(&p->addr), p->expiry);
 
    iax2_poke_peer(p, 0);
    if (p->expire > -1) {
       if (!AST_SCHED_DEL(sched, p->expire)) {
          p->expire = -1;
          peer_unref(p);
       }
    }
 
    ast_devstate_changed(AST_DEVICE_UNKNOWN, AST_DEVSTATE_CACHABLE, "IAX2/%s", p->name); /* Activate notification */
 
    p->expire = iax2_sched_add(sched, (p->expiry + 10) * 1000, expire_registry, peer_ref(p));
    if (p->expire == -1) {
       peer_unref(p);
    }
 
    if (iax2_regfunk) {
       iax2_regfunk(p->name, 1);
    }
 
    register_peer_exten(p, 1);
 }

◆ register_peer_exten()

static void register_peer_exten	(	struct iax2_peer *	peer,
		int	onoff
	)

static

Definition at line 8860 of file chan_iax2.c.

References ast_add_extension(), ast_context_remove_extension(), ast_copy_string(), ast_exists_extension(), ast_free_ptr(), ast_strdup, ast_strlen_zero, ext, iax2_peer::name, NULL, prune_peers(), regcontext, iax2_peer::regexten, S_OR, and strsep().

Referenced by __expire_registry(), peer_destructor(), reg_source_db(), and update_registry().

 {
    char multi[256];
    char *stringp, *ext;
    if (!ast_strlen_zero(regcontext)) {
       ast_copy_string(multi, S_OR(peer->regexten, peer->name), sizeof(multi));
       stringp = multi;
       while((ext = strsep(&stringp, "&"))) {
          if (onoff) {
             if (!ast_exists_extension(NULL, regcontext, ext, 1, NULL))
                ast_add_extension(regcontext, 1, ext, 1, NULL, NULL,
                        "Noop", ast_strdup(peer->name), ast_free_ptr, "IAX2");
          } else
             ast_context_remove_extension(regcontext, ext, 1, NULL);
       }
    }
 }

◆ register_verify()

static int register_verify	(	int	callno,
		struct ast_sockaddr *	addr,
		struct iax_ies *	ies
	)

static

Verify inbound registration.

Definition at line 8189 of file chan_iax2.c.

References iax2_peer::acl, ast_apply_acl(), ast_check_signature(), ast_clear_flag, ast_copy_string(), AST_DEVICE_UNKNOWN, AST_DEVSTATE_CACHABLE, ast_devstate_changed(), ast_free, ast_key_get(), AST_KEY_PUBLIC, ast_log, ast_mutex_lock, ast_mutex_unlock, ast_set_flag, ast_sockaddr_stringify_addr(), ast_strdup, ast_strdupa, ast_string_field_set, ast_strlen_zero, ast_test_flag64, authdebug, iax2_peer::authmethods, challenge(), chan_iax2_pvt::expiry, find_peer(), IAX_AUTH_MD5, IAX_AUTH_PLAINTEXT, IAX_AUTH_RSA, IAX_DYNAMIC, IAX_STATE_AUTHENTICATED, iax2_peer::inkeys, last_authmethod, LOG_ERROR, LOG_NOTICE, LOG_WARNING, iax_ies::md5_result, MD5Final(), MD5Init(), MD5Update(), iax2_peer::name, NULL, iax_ies::password, peer_unref(), iax_ies::refresh, iax_ies::rsa_result, iax2_peer::secret, strsep(), and iax_ies::username.

Referenced by socket_process_helper().

 {
    char requeststr[256] = "";
    char peer[256] = "";
    char md5secret[256] = "";
    char rsasecret[256] = "";
    char secret[256] = "";
    struct iax2_peer *p = NULL;
    struct ast_key *key;
    char *keyn;
    int x;
    int expire = 0;
    int res = -1;
 
    ast_clear_flag(&iaxs[callno]->state, IAX_STATE_AUTHENTICATED);
    /* iaxs[callno]->peer[0] = '\0'; not necc. any more-- stringfield is pre-inited to null string */
    if (ies->username)
       ast_copy_string(peer, ies->username, sizeof(peer));
    if (ies->password)
       ast_copy_string(secret, ies->password, sizeof(secret));
    if (ies->md5_result)
       ast_copy_string(md5secret, ies->md5_result, sizeof(md5secret));
    if (ies->rsa_result)
       ast_copy_string(rsasecret, ies->rsa_result, sizeof(rsasecret));
    if (ies->refresh)
       expire = ies->refresh;
 
    if (ast_strlen_zero(peer)) {
       ast_log(LOG_NOTICE, "Empty registration from %s\n", ast_sockaddr_stringify_addr(addr));
       return -1;
    }
 
    /* SLD: first call to lookup peer during registration */
    ast_mutex_unlock(&iaxsl[callno]);
    p = find_peer(peer, 1);
    ast_mutex_lock(&iaxsl[callno]);
    if (!p || !iaxs[callno]) {
       if (iaxs[callno]) {
          int plaintext = ((last_authmethod & IAX_AUTH_PLAINTEXT) | (iaxs[callno]->authmethods & IAX_AUTH_PLAINTEXT));
          /* Anything, as long as it's non-blank */
          ast_string_field_set(iaxs[callno], secret, "badsecret");
          /* An AUTHREQ must be sent in response to a REGREQ of an invalid peer unless
           * 1. A challenge already exists indicating a AUTHREQ was already sent out.
           * 2. A plaintext secret is present in ie as result of a previous AUTHREQ requesting it.
           * 3. A plaintext secret is present in the ie and the last_authmethod used by a peer happened
           *    to be plaintext, indicating it is an authmethod used by other peers on the system.
           *
           * If none of these cases exist, res will be returned as 0 without authentication indicating
           * an AUTHREQ needs to be sent out. */
 
          if (ast_strlen_zero(iaxs[callno]->challenge) &&
             !(!ast_strlen_zero(secret) && plaintext)) {
             /* by setting res to 0, an REGAUTH will be sent */
             res = 0;
          }
       }
       if (authdebug && !p)
          ast_log(LOG_NOTICE, "No registration for peer '%s' (from %s)\n", peer, ast_sockaddr_stringify_addr(addr));
       goto return_unref;
    }
 
    if (!ast_test_flag64(p, IAX_DYNAMIC)) {
       if (authdebug)
          ast_log(LOG_NOTICE, "Peer '%s' is not dynamic (from %s)\n", peer, ast_sockaddr_stringify_addr(addr));
       goto return_unref;
    }
 
    if (!ast_apply_acl(p->acl, addr, "IAX2 Peer ACL: ")) {
       if (authdebug)
          ast_log(LOG_NOTICE, "Host %s denied access to register peer '%s'\n", ast_sockaddr_stringify_addr(addr), p->name);
       goto return_unref;
    }
    ast_string_field_set(iaxs[callno], secret, p->secret);
    ast_string_field_set(iaxs[callno], inkeys, p->inkeys);
    /* Check secret against what we have on file */
    if (!ast_strlen_zero(rsasecret) && (p->authmethods & IAX_AUTH_RSA) && !ast_strlen_zero(iaxs[callno]->challenge)) {
       if (!ast_strlen_zero(p->inkeys)) {
          char *tmpkey;
          char *stringp=NULL;
          if (!(tmpkey = ast_strdup(p->inkeys))) {
             ast_log(LOG_ERROR, "Unable to create a temporary string for parsing stored 'inkeys'\n");
             goto return_unref;
          }
          stringp = tmpkey;
          keyn = strsep(&stringp, ":");
          while(keyn) {
             key = ast_key_get(keyn, AST_KEY_PUBLIC);
             if (key && !ast_check_signature(key, iaxs[callno]->challenge, rsasecret)) {
                ast_set_flag(&iaxs[callno]->state, IAX_STATE_AUTHENTICATED);
                break;
             } else if (!key)
                ast_log(LOG_WARNING, "requested inkey '%s' does not exist\n", keyn);
             keyn = strsep(&stringp, ":");
          }
          ast_free(tmpkey);
          if (!keyn) {
             if (authdebug)
                ast_log(LOG_NOTICE, "Host %s failed RSA authentication with inkeys '%s'\n", peer, p->inkeys);
             goto return_unref;
          }
       } else {
          if (authdebug)
             ast_log(LOG_NOTICE, "Host '%s' trying to do RSA authentication, but we have no inkeys\n", peer);
          goto return_unref;
       }
    } else if (!ast_strlen_zero(md5secret) && (p->authmethods & IAX_AUTH_MD5) && !ast_strlen_zero(iaxs[callno]->challenge)) {
       struct MD5Context md5;
       unsigned char digest[16];
       char *tmppw, *stringp;
 
       tmppw = ast_strdupa(p->secret);
       stringp = tmppw;
       while((tmppw = strsep(&stringp, ";"))) {
          MD5Init(&md5);
          MD5Update(&md5, (unsigned char *)iaxs[callno]->challenge, strlen(iaxs[callno]->challenge));
          MD5Update(&md5, (unsigned char *)tmppw, strlen(tmppw));
          MD5Final(digest, &md5);
          for (x=0;x<16;x++)
             sprintf(requeststr + (x << 1), "%02hhx", digest[x]); /* safe */
          if (!strcasecmp(requeststr, md5secret))
             break;
       }
       if (tmppw) {
          ast_set_flag(&iaxs[callno]->state, IAX_STATE_AUTHENTICATED);
       } else {
          if (authdebug)
             ast_log(LOG_NOTICE, "Host %s failed MD5 authentication for '%s' (%s != %s)\n", ast_sockaddr_stringify_addr(addr), p->name, requeststr, md5secret);
          goto return_unref;
       }
    } else if (!ast_strlen_zero(secret) && (p->authmethods & IAX_AUTH_PLAINTEXT)) {
       /* They've provided a plain text password and we support that */
       if (strcmp(secret, p->secret)) {
          if (authdebug)
             ast_log(LOG_NOTICE, "Host %s did not provide proper plaintext password for '%s'\n", ast_sockaddr_stringify_addr(addr), p->name);
          goto return_unref;
       } else
          ast_set_flag(&iaxs[callno]->state, IAX_STATE_AUTHENTICATED);
    } else if (!ast_strlen_zero(iaxs[callno]->challenge) && ast_strlen_zero(md5secret) && ast_strlen_zero(rsasecret)) {
       /* if challenge has been sent, but no challenge response if given, reject. */
       goto return_unref;
    }
    ast_devstate_changed(AST_DEVICE_UNKNOWN, AST_DEVSTATE_CACHABLE, "IAX2/%s", p->name); /* Activate notification */
 
    /* either Authentication has taken place, or a REGAUTH must be sent before verifying registration */
    res = 0;
 
 return_unref:
    if (iaxs[callno]) {
       ast_string_field_set(iaxs[callno], peer, peer);
 
       /* Choose lowest expiry number */
       if (expire && (expire < iaxs[callno]->expiry)) {
          iaxs[callno]->expiry = expire;
       }
    }
 
    if (p) {
       peer_unref(p);
    }
    return res;
 }

◆ registry_authrequest()

static int registry_authrequest ( int callno )

static

Definition at line 9180 of file chan_iax2.c.

References AST_FRAME_IAX, ast_mutex_lock, ast_mutex_unlock, ast_random(), ast_strdupa, ast_string_field_set, iax2_peer::authmethods, chan_iax2_pvt::authmethods, iax_ie_data::buf, iax2_peer::callno, challenge(), find_peer(), IAX_AUTH_MD5, IAX_AUTH_RSA, IAX_COMMAND_REGAUTH, iax_ie_append_short(), iax_ie_append_str(), IAX_IE_AUTHMETHODS, IAX_IE_CHALLENGE, IAX_IE_USERNAME, last_authmethod, peer_unref(), iax_ie_data::pos, and send_command().

Referenced by socket_process_helper().

 {
    struct iax_ie_data ied;
    struct iax2_peer *p;
    char challenge[10];
    const char *peer_name;
    int sentauthmethod;
 
    peer_name = ast_strdupa(iaxs[callno]->peer);
 
    /* SLD: third call to find_peer in registration */
    ast_mutex_unlock(&iaxsl[callno]);
    if ((p = find_peer(peer_name, 1))) {
       last_authmethod = p->authmethods;
    }
 
    ast_mutex_lock(&iaxsl[callno]);
    if (!iaxs[callno])
       goto return_unref;
 
    memset(&ied, 0, sizeof(ied));
    /* The selection of which delayed reject is sent may leak information,
     * if it sets a static response.  For example, if a host is known to only
     * use MD5 authentication, then an RSA response would indicate that the
     * peer does not exist, and vice-versa.
     * Therefore, we use whatever the last peer used (which may vary over the
     * course of a server, which should leak minimal information). */
    sentauthmethod = p ? p->authmethods : last_authmethod ? last_authmethod : IAX_AUTH_MD5;
    if (!p) {
       iaxs[callno]->authmethods = sentauthmethod;
    }
    iax_ie_append_short(&ied, IAX_IE_AUTHMETHODS, sentauthmethod);
    if (sentauthmethod & (IAX_AUTH_RSA | IAX_AUTH_MD5)) {
       /* Build the challenge */
       snprintf(challenge, sizeof(challenge), "%d", (int)ast_random());
       ast_string_field_set(iaxs[callno], challenge, challenge);
       iax_ie_append_str(&ied, IAX_IE_CHALLENGE, iaxs[callno]->challenge);
    }
    iax_ie_append_str(&ied, IAX_IE_USERNAME, peer_name);
 
 return_unref:
    if (p) {
       peer_unref(p);
    }
 
    return iaxs[callno] ? send_command(iaxs[callno], AST_FRAME_IAX, IAX_COMMAND_REGAUTH, 0, ied.buf, ied.pos, -1) : -1;
 }

◆ registry_rerequest()

static int registry_rerequest	(	struct iax_ies *	ies,
		int	callno,
		struct ast_sockaddr *	addr
	)

static

Definition at line 9228 of file chan_iax2.c.

References add_empty_calltoken_ie(), iax2_registry::addr, ast_copy_string(), AST_FRAME_IAX, ast_log, ast_sockaddr_cmp(), ast_sockaddr_stringify(), ast_strlen_zero, authenticate(), iax_ies::authmethods, iax_ie_data::buf, iax_ies::challenge, challenge(), IAX_COMMAND_REGREQ, iax_ie_append_short(), iax_ie_append_str(), IAX_IE_REFRESH, IAX_IE_USERNAME, LOG_NOTICE, LOG_WARNING, NULL, iax_ie_data::pos, iax2_registry::refresh, chan_iax2_pvt::reg, REG_STATE_AUTHSENT, REG_STATE_NOAUTH, iax2_registry::regstate, iax2_registry::secret, send_command(), iax_ies::username, and iax2_registry::username.

Referenced by socket_process_helper().

 {
    struct iax2_registry *reg;
    /* Start pessimistic */
    struct iax_ie_data ied;
    char peer[256] = "";
    char challenge[256] = "";
    int res;
    int authmethods = 0;
    if (ies->authmethods)
       authmethods = ies->authmethods;
    if (ies->username)
       ast_copy_string(peer, ies->username, sizeof(peer));
    if (ies->challenge)
       ast_copy_string(challenge, ies->challenge, sizeof(challenge));
    memset(&ied, 0, sizeof(ied));
    reg = iaxs[callno]->reg;
    if (reg) {
 
       if (ast_sockaddr_cmp(&reg->addr, addr)) {
          ast_log(LOG_WARNING, "Received unsolicited registry authenticate request from '%s'\n", ast_sockaddr_stringify(addr));
          return -1;
       }
       if (ast_strlen_zero(reg->secret)) {
          ast_log(LOG_NOTICE, "No secret associated with peer '%s'\n", reg->username);
          reg->regstate = REG_STATE_NOAUTH;
          return -1;
       }
       iax_ie_append_str(&ied, IAX_IE_USERNAME, reg->username);
       iax_ie_append_short(&ied, IAX_IE_REFRESH, reg->refresh);
       if (reg->secret[0] == '[') {
          char tmpkey[256];
          ast_copy_string(tmpkey, reg->secret + 1, sizeof(tmpkey));
          tmpkey[strlen(tmpkey) - 1] = '\0';
          res = authenticate(challenge, NULL, tmpkey, authmethods, &ied, addr, NULL);
       } else
          res = authenticate(challenge, reg->secret, NULL, authmethods, &ied, addr, NULL);
       if (!res) {
          reg->regstate = REG_STATE_AUTHSENT;
          add_empty_calltoken_ie(iaxs[callno], &ied); /* this _MUST_ be the last ie added */
          return send_command(iaxs[callno], AST_FRAME_IAX, IAX_COMMAND_REGREQ, 0, ied.buf, ied.pos, -1);
       } else
          return -1;
       ast_log(LOG_WARNING, "Registry acknowledge on unknown registery '%s'\n", peer);
    } else
       ast_log(LOG_NOTICE, "Can't reregister without a reg\n");
    return -1;
 }

◆ regstate2str()

static char* regstate2str ( int regstate )

static

Definition at line 7306 of file chan_iax2.c.

References REG_STATE_AUTHSENT, REG_STATE_NOAUTH, REG_STATE_REGISTERED, REG_STATE_REGSENT, REG_STATE_REJECTED, REG_STATE_TIMEOUT, and REG_STATE_UNREGISTERED.

Referenced by handle_cli_iax2_show_registry(), and manager_iax2_show_registry().

 {
    switch(regstate) {
    case REG_STATE_UNREGISTERED:
       return "Unregistered";
    case REG_STATE_REGSENT:
       return "Request Sent";
    case REG_STATE_AUTHSENT:
       return "Auth. Sent";
    case REG_STATE_REGISTERED:
       return "Registered";
    case REG_STATE_REJECTED:
       return "Rejected";
    case REG_STATE_TIMEOUT:
       return "Timeout";
    case REG_STATE_NOAUTH:
       return "No Authentication";
    default:
       return "Unknown";
    }
 }

◆ reload()

static int reload ( void )

static

Definition at line 14059 of file chan_iax2.c.

References reload_config().

Referenced by load_module().

 {
    return reload_config(0);
 }

◆ reload_config()

static int reload_config ( int forced_reload )

static

Definition at line 14010 of file chan_iax2.c.

References ao2_callback, AST_LIST_LOCK, AST_LIST_TRAVERSE, AST_LIST_UNLOCK, ast_unload_realtime(), config, debugaddr, iax2_do_register(), iax_firmware_reload(), iax_provision_reload(), NULL, OBJ_MULTIPLE, OBJ_NODATA, OBJ_UNLINK, poke_all_peers(), prune_addr_range_cb(), prune_peers(), prune_users(), set_config(), set_peercnt_limit_all_cb(), trunk_maxmtu, trunk_nmaxmtu, trunk_timed, and trunk_untimed.

Referenced by acl_change_stasis_cb(), handle_cli_iax2_reload(), and reload().

 {
    static const char config[] = "iax.conf";
    struct iax2_registry *reg;
 
    if (set_config(config, 1, forced_reload) > 0) {
       prune_peers();
       prune_users();
       ao2_callback(callno_limits, OBJ_NODATA | OBJ_UNLINK | OBJ_MULTIPLE, prune_addr_range_cb, NULL);
       ao2_callback(calltoken_ignores, OBJ_NODATA | OBJ_UNLINK | OBJ_MULTIPLE, prune_addr_range_cb, NULL);
       ao2_callback(peercnts, OBJ_NODATA, set_peercnt_limit_all_cb, NULL);
       trunk_timed = trunk_untimed = 0;
       trunk_nmaxmtu = trunk_maxmtu = 0;
       memset(&debugaddr, '\0', sizeof(debugaddr));
 
       AST_LIST_LOCK(&registrations);
       AST_LIST_TRAVERSE(&registrations, reg, entry)
          iax2_do_register(reg);
       AST_LIST_UNLOCK(&registrations);
 
       /* Qualify hosts, too */
       poke_all_peers();
    }
 
    iax_firmware_reload();
    iax_provision_reload(1);
    ast_unload_realtime("iaxpeers");
 
    return 0;
 }

◆ remove_by_peercallno()

static void remove_by_peercallno ( struct chan_iax2_pvt * pvt )

static

Definition at line 2428 of file chan_iax2.c.

References ao2_unlink, ast_log, LOG_ERROR, and chan_iax2_pvt::peercallno.

Referenced by complete_transfer(), iax2_destroy(), resend_with_token(), and socket_process_helper().

 {
    if (!pvt->peercallno) {
       ast_log(LOG_ERROR, "This should not be called without a peer call number.\n");
       return;
    }
 
    ao2_unlink(iax_peercallno_pvts, pvt);
 }

◆ remove_by_transfercallno()

static void remove_by_transfercallno ( struct chan_iax2_pvt * pvt )

static

Definition at line 2409 of file chan_iax2.c.

References ao2_unlink, ast_log, LOG_ERROR, and chan_iax2_pvt::transfercallno.

Referenced by complete_transfer(), and iax2_destroy().

 {
    if (!pvt->transfercallno) {
       ast_log(LOG_ERROR, "This should not be called without a transfer call number.\n");
       return;
    }
 
    ao2_unlink(iax_transfercallno_pvts, pvt);
 }

◆ replace_callno()

static int replace_callno ( const void * obj )

static

Definition at line 2982 of file chan_iax2.c.

References ast_assert, ast_log, ast_mutex_lock, ast_mutex_unlock, call_number_pool::available, CALLNO_ENTRY_GET_CALLNO, CALLNO_ENTRY_IS_VALIDATED, callno_pool, callno_pool_lock, callno_pool_trunk, call_number_pool::capacity, LOG_ERROR, call_number_pool::numbers, pool, PTR_TO_CALLNO_ENTRY, and TRUNK_CALL_START.

Referenced by __find_callno(), and jb_debug_output().

 {
    callno_entry entry = PTR_TO_CALLNO_ENTRY(obj);
    struct call_number_pool *pool;
 
    /* We lock here primarily to ensure thread safety of the
     * total_nonval_callno_used check and decrement */
    ast_mutex_lock(&callno_pool_lock);
 
    if (!CALLNO_ENTRY_IS_VALIDATED(entry)) {
       if (total_nonval_callno_used) {
          total_nonval_callno_used--;
       } else {
          ast_log(LOG_ERROR,
             "Attempted to decrement total non calltoken validated "
             "callnumbers below zero.  Callno is: %d\n",
             CALLNO_ENTRY_GET_CALLNO(entry));
       }
    }
 
    if (CALLNO_ENTRY_GET_CALLNO(entry) < TRUNK_CALL_START) {
       pool = &callno_pool;
    } else {
       pool = &callno_pool_trunk;
    }
 
    ast_assert(pool->capacity > pool->available);
 
    /* This clears the validated flag */
    entry = CALLNO_ENTRY_GET_CALLNO(entry);
 
    pool->numbers[pool->available] = entry;
    pool->available++;
 
    ast_mutex_unlock(&callno_pool_lock);
 
    return 0;
 }

◆ requirecalltoken_mark_auto()

static void requirecalltoken_mark_auto	(	const char *	name,
		int	subclass
	)

static

Definition at line 4892 of file chan_iax2.c.

References ast_strlen_zero, CALLTOKEN_AUTO, iax2_user::calltoken_required, iax2_peer::calltoken_required, CALLTOKEN_YES, find_peer(), find_user(), IAX_COMMAND_NEW, NULL, peer_unref(), and user_unref().

Referenced by handle_call_token().

 {
    struct iax2_user *user = NULL;
    struct iax2_peer *peer = NULL;
 
    if (ast_strlen_zero(name)) {
       return; /* no username given */
    }
 
    if ((subclass == IAX_COMMAND_NEW) && (user = find_user(name)) && (user->calltoken_required == CALLTOKEN_AUTO)) {
       user->calltoken_required = CALLTOKEN_YES;
    } else if ((subclass != IAX_COMMAND_NEW) && (peer = find_peer(name, 1)) && (peer->calltoken_required == CALLTOKEN_AUTO)) {
       peer->calltoken_required = CALLTOKEN_YES;
    }
 
    if (peer) {
       peer_unref(peer);
    }
    if (user) {
       user_unref(user);
    }
 }

◆ resend_with_token()

static void resend_with_token	(	int	callno,
		struct iax_frame *	f,
		const char *	newtoken
	)

static

Definition at line 4810 of file chan_iax2.c.

References iax_frame::af, chan_iax2_pvt::aseqno, AST_FRAME_IAX, AST_LIST_REMOVE, iax_ie_data::buf, chan_iax2_pvt::callno, chan_iax2_pvt::calltoken_ie_len, iax_frame::data, iax_frame::datalen, iax_frame::dcallno, iax_frame::encmethods, frame_queue, ast_frame::frametype, iax2_allow_new(), iax2_frame_free(), iax_ie_append_str(), IAX_IE_CALLTOKEN, ast_frame_subclass::integer, chan_iax2_pvt::iseqno, chan_iax2_pvt::oseqno, chan_iax2_pvt::peercallno, remove_by_peercallno(), chan_iax2_pvt::rseqno, send_command(), and ast_frame::subclass.

Referenced by socket_process_helper().

 {
    struct chan_iax2_pvt *pvt = iaxs[callno];
    int frametype = f->af.frametype;
    int subclass = f->af.subclass.integer;
    struct {
       struct ast_iax2_full_hdr fh;
       struct iax_ie_data ied;
    } data = {
       .ied.buf = { 0 },
       .ied.pos = 0,
    };
    /* total len - header len gives us the frame's IE len */
    int ie_data_pos = f->datalen - sizeof(struct ast_iax2_full_hdr);
 
    if (!pvt) {
       return;  /* this should not be possible if called from socket_process() */
    }
 
    /*
     * Check to make sure last frame sent is valid for call token resend
     * 1. Frame should _NOT_ be encrypted since it starts the IAX dialog
     * 2. Frame should _NOT_ already have a destination callno
     * 3. Frame must be a valid iax_frame subclass capable of starting dialog
     * 4. Pvt must have a calltoken_ie_len which represents the number of
     *    bytes at the end of the frame used for the previous calltoken ie.
     * 5. Pvt's calltoken_ie_len must be _LESS_ than the total IE length
     * 6. Total length of f->data must be _LESS_ than size of our data struct
     *    because f->data must be able to fit within data.
     */
    if (f->encmethods || f->dcallno || !iax2_allow_new(frametype, subclass, 0)
       || !pvt->calltoken_ie_len || (pvt->calltoken_ie_len > ie_data_pos) ||
       (f->datalen > sizeof(data))) {
 
       return;  /* ignore resend, token was not valid for the dialog */
    }
 
    /* token is valid
     * 1. Copy frame data over
     * 2. Redo calltoken IE, it will always be the last ie in the frame.
     *    NOTE: Having the ie always be last is not protocol specified,
     *    it is only an implementation choice.  Since we only expect the ie to
     *    be last for frames we have sent, this can no way be affected by
     *    another end point.
     * 3. Remove frame from queue
     * 4. Free old frame
     * 5. Clear previous seqnos
     * 6. Resend with CALLTOKEN ie.
     */
 
    /* ---1.--- */
    memcpy(&data, f->data, f->datalen);
    data.ied.pos = ie_data_pos;
 
    /* ---2.--- */
    /* move to the beginning of the calltoken ie so we can write over it */
    data.ied.pos -= pvt->calltoken_ie_len;
    iax_ie_append_str(&data.ied, IAX_IE_CALLTOKEN, newtoken);
 
    /* make sure to update token length incase it ever has to be stripped off again */
    pvt->calltoken_ie_len = data.ied.pos - ie_data_pos; /* new pos minus old pos tells how big token ie is */
 
    /* ---3.--- */
    AST_LIST_REMOVE(&frame_queue[callno], f, list);
 
    /* ---4.--- */
    iax2_frame_free(f);
 
    /* ---5.--- */
    pvt->oseqno = 0;
    pvt->rseqno = 0;
    pvt->iseqno = 0;
    pvt->aseqno = 0;
    if (pvt->peercallno) {
       remove_by_peercallno(pvt);
       pvt->peercallno = 0;
    }
 
    /* ---6.--- */
    send_command(pvt, AST_FRAME_IAX, subclass, 0, data.ied.buf, data.ied.pos, -1);
 }

◆ save_osptoken()

static void save_osptoken	(	struct iax_frame *	fr,
		struct iax_ies *	ies
	)

static

Definition at line 9639 of file chan_iax2.c.

References ast_string_field_set, iax_frame::callno, IAX_MAX_OSPBLOCK_NUM, IAX_MAX_OSPBLOCK_SIZE, IAX_MAX_OSPBUFF_SIZE, iax_ies::ospblocklength, and iax_ies::osptokenblock.

Referenced by socket_process_helper().

 {
    int i;
    unsigned int length, offset = 0;
    char full_osptoken[IAX_MAX_OSPBUFF_SIZE];
 
    for (i = 0; i < IAX_MAX_OSPBLOCK_NUM; i++) {
       length = ies->ospblocklength[i];
       if (length != 0) {
          if (length > IAX_MAX_OSPBLOCK_SIZE) {
             /* OSP token block length wrong, clear buffer */
             offset = 0;
             break;
          } else {
             memcpy(full_osptoken + offset, ies->osptokenblock[i], length);
             offset += length;
          }
       } else {
          break;
       }
    }
    *(full_osptoken + offset) = '\0';
    if (strlen(full_osptoken) != offset) {
       /* OSP token length wrong, clear buffer */
       *full_osptoken = '\0';
    }
 
    ast_string_field_set(iaxs[fr->callno], osptoken, full_osptoken);
 }

◆ save_rr()

static void save_rr	(	struct iax_frame *	fr,
		struct iax_ies *	ies
	)

static

Definition at line 9628 of file chan_iax2.c.

References iax_frame::callno, iax_rr::delay, iax_rr::dropped, iax_rr::jitter, iax_rr::losscnt, iax_rr::losspct, iax_rr::ooo, iax_rr::packets, chan_iax2_pvt::remote_rr, iax_ies::rr_delay, iax_ies::rr_dropped, iax_ies::rr_jitter, iax_ies::rr_loss, iax_ies::rr_ooo, and iax_ies::rr_pkts.

Referenced by socket_process_helper().

 {
    iaxs[fr->callno]->remote_rr.jitter = ies->rr_jitter;
    iaxs[fr->callno]->remote_rr.losspct = ies->rr_loss >> 24;
    iaxs[fr->callno]->remote_rr.losscnt = ies->rr_loss & 0xffffff;
    iaxs[fr->callno]->remote_rr.packets = ies->rr_pkts;
    iaxs[fr->callno]->remote_rr.delay = ies->rr_delay;
    iaxs[fr->callno]->remote_rr.dropped = ies->rr_dropped;
    iaxs[fr->callno]->remote_rr.ooo = ies->rr_ooo;
 }

◆ sched_delay_remove()

static void sched_delay_remove	(	struct ast_sockaddr *	addr,
		callno_entry	entry
	)

static

Definition at line 3054 of file chan_iax2.c.

References peercnt::addr, ao2_find, ao2_ref, ast_debug, ast_sockaddr_copy(), ast_sockaddr_stringify_addr(), CALLNO_ENTRY_TO_PTR, iax2_sched_add(), MIN_REUSE_TIME, OBJ_POINTER, and peercnt_remove_cb().

Referenced by jb_debug_output(), and pvt_destructor().

 {
    int i;
    struct peercnt *peercnt;
    struct peercnt tmp;
 
    ast_sockaddr_copy(&tmp.addr, addr);
 
    if ((peercnt = ao2_find(peercnts, &tmp, OBJ_POINTER))) {
       /* refcount is incremented with ao2_find.  keep that ref for the scheduler */
       ast_debug(1, "schedule decrement of callno used for %s in %d seconds\n", ast_sockaddr_stringify_addr(addr), MIN_REUSE_TIME);
       i = iax2_sched_add(sched, MIN_REUSE_TIME * 1000, peercnt_remove_cb, peercnt);
       if (i == -1) {
          ao2_ref(peercnt, -1);
       }
    }
 
    iax2_sched_add(
       sched,
       MIN_REUSE_TIME * 1000,
       replace_callno,
       CALLNO_ENTRY_TO_PTR(entry));
 }

◆ schedule_delivery()

static int schedule_delivery	(	struct iax_frame *	fr,
		int	updatehistory,
		int	fromtrunk,
		unsigned int *	tsout
	)

static

Note: This function assumes fr->callno is locked; IMPORTANT NOTE!!! Any time this function is used, even if iaxs[callno] was valid before calling it, it may no longer be valid after calling it.

Definition at line 4218 of file chan_iax2.c.

References __do_deliver(), iax_frame::af, ast_codec_samples_count(), ast_debug, ast_format_get_sample_rate(), AST_FRAME_CNG, AST_FRAME_VOICE, ast_samp2tv(), ast_test_flag64, ast_tv(), ast_tvadd(), ast_tvzero(), iax_frame::callno, ast_frame::data, ast_frame::datalen, ast_frame::delivery, ast_frame_subclass::format, ast_frame::frametype, iax2_frame_free(), IAX_USEJITTERBUF, chan_iax2_pvt::jb, JB_DROP, jb_put(), JB_SCHED, JB_TYPE_CONTROL, JB_TYPE_SILENCE, JB_TYPE_VOICE, len(), chan_iax2_pvt::rxcore, ast_frame::subclass, iax_frame::ts, type, unwrap_timestamp(), and update_jbsched().

Referenced by socket_process_helper(), and socket_process_meta().

 {
    int type, len;
    int ret;
    int needfree = 0;
 
    /*
     * Clear fr->af.data if there is no data in the buffer.  Things
     * like AST_CONTROL_HOLD without a suggested music class must
     * have a NULL pointer.
     */
    if (!fr->af.datalen) {
       memset(&fr->af.data, 0, sizeof(fr->af.data));
    }
 
    /* Attempt to recover wrapped timestamps */
    unwrap_timestamp(fr);
 
    /* delivery time is sender's sent timestamp converted back into absolute time according to our clock */
    if ( !fromtrunk && !ast_tvzero(iaxs[fr->callno]->rxcore))
       fr->af.delivery = ast_tvadd(iaxs[fr->callno]->rxcore, ast_samp2tv(fr->ts, 1000));
    else {
 #if 0
       ast_debug(1, "schedule_delivery: set delivery to 0 as we don't have an rxcore yet, or frame is from trunk.\n");
 #endif
       fr->af.delivery = ast_tv(0,0);
    }
 
    type = JB_TYPE_CONTROL;
    len = 0;
 
    if(fr->af.frametype == AST_FRAME_VOICE) {
       type = JB_TYPE_VOICE;
       len = ast_codec_samples_count(&fr->af) / (ast_format_get_sample_rate(fr->af.subclass.format) / 1000);
    } else if(fr->af.frametype == AST_FRAME_CNG) {
       type = JB_TYPE_SILENCE;
    }
 
    if ( (!ast_test_flag64(iaxs[fr->callno], IAX_USEJITTERBUF)) ) {
       if (tsout)
          *tsout = fr->ts;
       __do_deliver(fr);
       return -1;
    }
 
    /* insert into jitterbuffer */
    /* TODO: Perhaps we could act immediately if it's not droppable and late */
    ret = jb_put(iaxs[fr->callno]->jb, fr, type, len, fr->ts,
          calc_rxstamp(iaxs[fr->callno],fr->ts));
    if (ret == JB_DROP) {
       needfree++;
    } else if (ret == JB_SCHED) {
       update_jbsched(iaxs[fr->callno]);
    }
    if (tsout)
       *tsout = fr->ts;
    if (needfree) {
       /* Free our iax frame */
       iax2_frame_free(fr);
       return -1;
    }
    return 0;
 }

◆ scheduled_destroy()

static int scheduled_destroy ( const void * vid )

static

Definition at line 2136 of file chan_iax2.c.

References ast_debug, ast_mutex_lock, ast_mutex_unlock, iax2_destroy(), and PTR_TO_CALLNO.

Referenced by iax2_hangup().

 {
    unsigned short callno = PTR_TO_CALLNO(vid);
    ast_mutex_lock(&iaxsl[callno]);
    if (iaxs[callno]) {
       ast_debug(1, "Really destroying %d now...\n", callno);
       iax2_destroy(callno);
    }
    ast_mutex_unlock(&iaxsl[callno]);
    return 0;
 }

◆ send_apathetic_reply()

static int send_apathetic_reply	(	unsigned short	callno,
		unsigned short	dcallno,
		struct ast_sockaddr *	addr,
		int	command,
		int	ts,
		unsigned char	seqno,
		int	sockfd,
		struct iax_ie_data *	ied
	)

static

Definition at line 4772 of file chan_iax2.c.

References AST_FRAME_IAX, ast_sendto(), iax_ie_data::buf, compress_subclass(), stasis_subscription::data, IAX_FLAG_RETRANS, iax_outputframe(), NULL, and iax_ie_data::pos.

Referenced by handle_call_token(), and socket_process_helper().

 {
    struct {
       struct ast_iax2_full_hdr f;
       struct iax_ie_data ied;
    } data;
    size_t size = sizeof(struct ast_iax2_full_hdr);
 
    if (ied) {
       size += ied->pos;
       memcpy(&data.ied, ied->buf, ied->pos);
    }
 
    data.f.scallno = htons(0x8000 | callno);
    data.f.dcallno = htons(dcallno & ~IAX_FLAG_RETRANS);
    data.f.ts = htonl(ts);
    data.f.iseqno = seqno;
    data.f.oseqno = 0;
    data.f.type = AST_FRAME_IAX;
    data.f.csub = compress_subclass(command);
 
    iax_outputframe(NULL, &data.f, 0, addr, size - sizeof(struct ast_iax2_full_hdr));
 
    return ast_sendto(sockfd, &data, size, 0, addr);
 }

◆ send_command()

static int send_command	(	struct chan_iax2_pvt *	i,
		char	type,
		int	command,
		unsigned int	ts,
		const unsigned char *	data,
		int	datalen,
		int	seqno
	)

static

Definition at line 7731 of file chan_iax2.c.

References __send_command(), ast_debug, AST_FRAME_CONTROL, chan_iax2_pvt::callno, and iax2_is_control_frame_allowed().

Referenced by __attempt_transmit(), __send_lagrq(), __send_ping(), authenticate_reply(), authenticate_request(), cache_get_callno_locked(), dp_lookup(), iax2_call(), iax2_do_register(), iax2_dprequest(), iax2_indicate(), iax2_key_rotate(), iax2_poke_peer(), iax2_provision(), jb_debug_output(), registry_authrequest(), registry_rerequest(), resend_with_token(), send_command_locked(), and socket_process_helper().

 {
    if (type == AST_FRAME_CONTROL && !iax2_is_control_frame_allowed(command)) {
       /* Control frame should not go out on the wire. */
       ast_debug(2, "Callno %d: Blocked sending control frame %d.\n",
          i->callno, command);
       return 0;
    }
    return __send_command(i, type, command, ts, data, datalen, seqno, 0, 0, 0);
 }

◆ send_command_final()

static int send_command_final	(	struct chan_iax2_pvt *	i,
		char	type,
		int	command,
		unsigned int	ts,
		const unsigned char *	data,
		int	datalen,
		int	seqno
	)

static

Note: Since this function calls iax2_predestroy() -> iax2_queue_hangup(), the pvt struct for the given call number may disappear during its execution.

Definition at line 7756 of file chan_iax2.c.

References __send_command(), chan_iax2_pvt::callno, and iax2_predestroy().

Referenced by __auth_reject(), __auto_hangup(), authenticate_request(), iax2_hangup(), jb_debug_output(), socket_process_helper(), and update_registry().

 {
    int call_num = i->callno;
    /* It is assumed that the callno has already been locked */
    iax2_predestroy(i->callno);
    if (!iaxs[call_num])
       return -1;
    return __send_command(i, type, command, ts, data, datalen, seqno, 0, 0, 1);
 }

◆ send_command_immediate()

static int send_command_immediate	(	struct chan_iax2_pvt *	i,
		char	type,
		int	command,
		unsigned int	ts,
		const unsigned char *	data,
		int	datalen,
		int	seqno
	)

static

Definition at line 7766 of file chan_iax2.c.

References __send_command().

Referenced by iax2_vnak(), jb_debug_output(), and socket_process_helper().

 {
    return __send_command(i, type, command, ts, data, datalen, seqno, 1, 0, 0);
 }

◆ send_command_locked()

static int send_command_locked	(	unsigned short	callno,
		char	type,
		int	command,
		unsigned int	ts,
		const unsigned char *	data,
		int	datalen,
		int	seqno
	)

static

Definition at line 7742 of file chan_iax2.c.

References ast_mutex_lock, ast_mutex_unlock, and send_command().

Referenced by iax2_answer(), iax2_digit_begin(), iax2_digit_end(), iax2_sendhtml(), iax2_sendimage(), iax2_sendtext(), iax2_setoption(), iax2_transfer(), and jb_debug_output().

 {
    int res;
    ast_mutex_lock(&iaxsl[callno]);
    res = send_command(iaxs[callno], type, command, ts, data, datalen, seqno);
    ast_mutex_unlock(&iaxsl[callno]);
    return res;
 }

◆ send_command_transfer()

static int send_command_transfer	(	struct chan_iax2_pvt *	i,
		char	type,
		int	command,
		unsigned int	ts,
		const unsigned char *	data,
		int	datalen
	)

static

Definition at line 7771 of file chan_iax2.c.

References __send_command().

Referenced by jb_debug_output(), socket_process_helper(), and try_transfer().

 {
    return __send_command(i, type, command, ts, data, datalen, 0, 0, 1, 0);
 }

◆ send_lagrq()

static int send_lagrq ( const void * data )

static

Definition at line 1804 of file chan_iax2.c.

References __send_lagrq(), and schedule_action.

Referenced by get_encrypt_methods().

 {
 #ifdef SCHED_MULTITHREADED
    if (schedule_action(__send_lagrq, data))
 #endif
       __send_lagrq(data);
    return 0;
 }

◆ send_packet()

static int send_packet ( struct iax_frame * f )

static

Definition at line 3402 of file chan_iax2.c.

References chan_iax2_pvt::addr, ast_debug, ast_sendto(), ast_sockaddr_stringify(), iax_frame::callno, iax_frame::data, iax_frame::datalen, errno, handle_error(), iax_outputframe(), iaxdebug, NULL, chan_iax2_pvt::peercallno, iax_frame::transfer, chan_iax2_pvt::transfer, and iax_frame::ts.

Referenced by __attempt_transmit(), iax2_send(), transmit_frame(), and vnak_retransmit().

 {
    int res;
    int callno = f->callno;
 
    /* Don't send if there was an error, but return error instead */
    if (!callno || !iaxs[callno] || iaxs[callno]->error)
        return -1;
 
    /* Called with iaxsl held */
    if (iaxdebug) {
       ast_debug(3, "Sending %u on %d/%d to %s\n", f->ts, callno, iaxs[callno]->peercallno, ast_sockaddr_stringify(&iaxs[callno]->addr));
    }
    if (f->transfer) {
       iax_outputframe(f, NULL, 0, &iaxs[callno]->transfer, f->datalen - sizeof(struct ast_iax2_full_hdr));
       res = ast_sendto(iaxs[callno]->sockfd, f->data, f->datalen, 0, &iaxs[callno]->transfer);
    } else {
       iax_outputframe(f, NULL, 0, &iaxs[callno]->addr, f->datalen - sizeof(struct ast_iax2_full_hdr));
       res = ast_sendto(iaxs[callno]->sockfd, f->data, f->datalen, 0, &iaxs[callno]->addr);
    }
    if (res < 0) {
       if (iaxdebug)
          ast_debug(1, "Received error: %s\n", strerror(errno));
       handle_error();
    } else
       res = 0;
 
    return res;
 }

◆ send_ping()

static int send_ping ( const void * data )

static

Definition at line 1740 of file chan_iax2.c.

References __send_ping(), and schedule_action.

Referenced by iax2_lock_callno_unless_destroyed().

 {
 #ifdef SCHED_MULTITHREADED
    if (schedule_action(__send_ping, data))
 #endif
       __send_ping(data);
 
    return 0;
 }

◆ send_signaling()

static void send_signaling ( struct chan_iax2_pvt * pvt )

static

This function must be called once we are sure the other side has given us a call number. All signaling is held here until that point.

Definition at line 2158 of file chan_iax2.c.

References AST_LIST_REMOVE_HEAD, signaling_queue_entry::f, free_signaling_queue_entry(), chan_iax2_pvt::hold_signaling, iax2_send(), signaling_queue_entry::next, NULL, and chan_iax2_pvt::signaling_queue.

Referenced by socket_process_helper().

 {
    struct signaling_queue_entry *s = NULL;
 
    while ((s = AST_LIST_REMOVE_HEAD(&pvt->signaling_queue, next))) {
       iax2_send(pvt, &s->f, 0, -1, 0, 0, 0);
       free_signaling_queue_entry(s);
    }
    pvt->hold_signaling = 0;
 }

◆ send_trunk()

static int send_trunk	(	struct iax2_trunk_peer *	tpeer,
		struct timeval *	now
	)

static

Definition at line 9409 of file chan_iax2.c.

References iax2_trunk_peer::addr, iax_frame::afdata, ast_debug, ast_inet_ntoa(), ast_test_flag64, calc_txpeerstamp(), iax2_trunk_peer::calls, ast_iax2_meta_hdr::cmddata, iax_frame::data, ast_iax2_meta_hdr::data, iax_frame::datalen, iax_frame::direction, DIRECTION_OUTGRESS, IAX_META_TRUNK, IAX_META_TRUNK_MINI, IAX_META_TRUNK_SUPERMINI, IAX_TRUNKTIMESTAMPS, if(), env::meta, ast_iax2_meta_hdr::metacmd, iax_frame::retrans, iax2_trunk_peer::sockfd, iax_frame::transfer, transmit_trunk(), iax2_trunk_peer::trunkdata, iax2_trunk_peer::trunkdatalen, trunkfreq, ast_iax2_meta_trunk_hdr::ts, and ast_iax2_meta_hdr::zeros.

Referenced by iax2_trunk_queue(), jb_debug_output(), and timing_read().

 {
    int res = 0;
    struct iax_frame *fr;
    struct ast_iax2_meta_hdr *meta;
    struct ast_iax2_meta_trunk_hdr *mth;
    int calls = 0;
 
    /* Point to frame */
    fr = (struct iax_frame *)tpeer->trunkdata;
    /* Point to meta data */
    meta = (struct ast_iax2_meta_hdr *)fr->afdata;
    mth = (struct ast_iax2_meta_trunk_hdr *)meta->data;
    if (tpeer->trunkdatalen) {
       /* We're actually sending a frame, so fill the meta trunk header and meta header */
       meta->zeros = 0;
       meta->metacmd = IAX_META_TRUNK;
       if (ast_test_flag64(&globalflags, IAX_TRUNKTIMESTAMPS))
          meta->cmddata = IAX_META_TRUNK_MINI;
       else
          meta->cmddata = IAX_META_TRUNK_SUPERMINI;
       mth->ts = htonl(calc_txpeerstamp(tpeer, trunkfreq, now));
       /* And the rest of the ast_iax2 header */
       fr->direction = DIRECTION_OUTGRESS;
       fr->retrans = -1;
       fr->transfer = 0;
       /* Any appropriate call will do */
       fr->data = fr->afdata;
       fr->datalen = tpeer->trunkdatalen + sizeof(struct ast_iax2_meta_hdr) + sizeof(struct ast_iax2_meta_trunk_hdr);
       res = transmit_trunk(fr, &tpeer->addr, tpeer->sockfd);
       calls = tpeer->calls;
 #if 0
       ast_debug(1, "Trunking %d call chunks in %d bytes to %s:%d, ts=%d\n", calls, fr->datalen, ast_inet_ntoa(tpeer->addr.sin_addr), ntohs(tpeer->addr.sin_port), ntohl(mth->ts));
 #endif
       /* Reset transmit trunk side data */
       tpeer->trunkdatalen = 0;
       tpeer->calls = 0;
    }
    if (res < 0)
       return res;
    return calls;
 }

◆ set_config()

static int set_config	(	const char *	config_file,
		int	reload,
		int	forced
	)

static

Load configuration.

Definition at line 13476 of file chan_iax2.c.

References accountcode, add_calltoken_ignore(), adsi, amaflags, ao2_link, ast_category_browse(), ast_channel_string2amaflag(), ast_clear_flag, ast_clear_flag64, ast_config_destroy(), ast_config_load, ast_context_find_or_create(), ast_copy_string(), ast_false(), AST_LIST_LOCK, AST_LIST_UNLOCK, ast_log, ast_netsock_bindaddr(), ast_netsock_init(), ast_netsock_list_alloc(), ast_netsock_release(), ast_netsock_sockfd(), ast_netsock_unref(), ast_parse_arg(), ast_set2_flag64, ast_set_flag64, ast_set_flags_to64, ast_sockaddr_parse(), ast_sockaddr_port, ast_sockaddr_set_port, ast_sockaddr_stringify(), ast_str2cos(), ast_str2tos(), ast_strlen_zero, ast_test_flag64, ast_timer_set_rate(), ast_true(), ast_variable_browse(), ast_variable_retrieve(), ast_verb, authdebug, autokill, build_callno_limits(), build_peer(), build_user(), CONFIG_FLAG_FILEUNCHANGED, CONFIG_STATUS_FILEINVALID, CONFIG_STATUS_FILEUNCHANGED, DEFAULT_MAXCALLNO_LIMIT, DEFAULT_MAXCALLNO_LIMIT_NONVAL, DEFAULT_MAXMS, default_parkinglot, defaultsockfd, delayreject, errno, format, gen, get_auth_methods(), get_encrypt_methods(), global_max_trunk_mtu, host, iax2_authmethods, iax2_capability, iax2_codec_pref_from_bitfield(), iax2_encryption, iax2_parse_allow_disallow(), iax2_register(), IAX_ALLOWFWDOWNLOAD, IAX_AUTH_PLAINTEXT, IAX_CAPABILITY_FULLBANDWIDTH, IAX_CAPABILITY_LOWBANDWIDTH, IAX_CAPABILITY_MEDBANDWIDTH, IAX_CODEC_NOCAP, IAX_CODEC_NOPREFS, IAX_CODEC_USER_FIRST, IAX_DEFAULT_PORTNO, IAX_DEFAULT_REG_EXPIRE, IAX_DYNAMIC, IAX_FORCE_ENCRYPT, IAX_NOTRANSFER, IAX_RECVCONNECTEDLINE, IAX_RTAUTOCLEAR, IAX_RTCACHEFRIENDS, IAX_RTIGNOREREGEXPIRE, IAX_RTSAVE_SYSNAME, IAX_RTUPDATE, IAX_SENDCONNECTEDLINE, IAX_SHRINKCALLERID, IAX_TRANSFERMEDIA, IAX_TRUNKTIMESTAMPS, IAX_USEJITTERBUF, iaxcompat, jittertargetextra, lagrq_time, language, ast_variable::lineno, LOG_ERROR, LOG_NOTICE, LOG_WARNING, max_reg_expire, MAX_TRUNK_MTU, MAX_TRUNKDATA, maxauthreq, maxjitterbuffer, maxjitterinterps, min_reg_expire, mohinterpret, mohsuggest, ast_variable::name, network_change_stasis_subscribe(), network_change_stasis_unsubscribe(), ast_variable::next, NULL, PARSE_ADDR, PARSE_IN_RANGE, PARSE_UINT32, peer_unref(), ping_time, prefs_global, qos, reg_source_db(), regcontext, resyncthreshold, set_config_destroy(), socket_read(), srvlookup, tmp(), trunkfreq, trunkmaxsize, user, user_unref(), and ast_variable::value.

Referenced by load_module(), and reload_config().

 {
    struct ast_config *cfg, *ucfg;
    iax2_format capability;
    struct ast_variable *v;
    char *cat;
    const char *utype;
    const char *tosval;
    int format;
    int portno = IAX_DEFAULT_PORTNO;
    int  x;
    int mtuv;
    int subscribe_network_change = 1;
    struct iax2_user *user;
    struct iax2_peer *peer;
    struct ast_netsock *ns;
    struct ast_flags config_flags = { (reload && !forced) ? CONFIG_FLAG_FILEUNCHANGED : 0 };
    struct ast_sockaddr bindaddr;
    struct iax2_codec_pref prefs_new;
 
    cfg = ast_config_load(config_file, config_flags);
 
    if (!cfg) {
       ast_log(LOG_ERROR, "Unable to load config %s\n", config_file);
       return -1;
    } else if (cfg == CONFIG_STATUS_FILEUNCHANGED) {
       ucfg = ast_config_load("users.conf", config_flags);
       if (ucfg == CONFIG_STATUS_FILEUNCHANGED)
          return 0;
       /* Otherwise we need to reread both files */
       ast_clear_flag(&config_flags, CONFIG_FLAG_FILEUNCHANGED);
       if ((cfg = ast_config_load(config_file, config_flags)) == CONFIG_STATUS_FILEINVALID) {
          ast_log(LOG_ERROR, "Config file %s is in an invalid format.  Aborting.\n", config_file);
          ast_config_destroy(ucfg);
          return 0;
       }
       if (!cfg) {
          /* should have been able to load the config here */
          ast_log(LOG_ERROR, "Unable to load config %s again\n", config_file);
          return -1;
       }
    } else if (cfg == CONFIG_STATUS_FILEINVALID) {
       ast_log(LOG_ERROR, "Config file %s is in an invalid format.  Aborting.\n", config_file);
       return 0;
    } else { /* iax.conf changed, gotta reread users.conf, too */
       ast_clear_flag(&config_flags, CONFIG_FLAG_FILEUNCHANGED);
       if ((ucfg = ast_config_load("users.conf", config_flags)) == CONFIG_STATUS_FILEINVALID) {
          ast_log(LOG_ERROR, "Config file users.conf is in an invalid format.  Aborting.\n");
          ast_config_destroy(cfg);
          return 0;
       }
    }
 
    if (reload) {
       set_config_destroy();
    }
 
    ast_sockaddr_parse(&bindaddr, "0.0.0.0:0", 0);
 
    /* Setup new codec prefs */
    capability = iax2_codec_pref_from_bitfield(&prefs_new, IAX_CAPABILITY_FULLBANDWIDTH);
 
    /* Reset Global Flags */
    memset(&globalflags, 0, sizeof(globalflags));
    ast_set_flag64(&globalflags, IAX_RTUPDATE);
    ast_set_flag64((&globalflags), IAX_SHRINKCALLERID);
 
 #ifdef SO_NO_CHECK
    nochecksums = 0;
 #endif
    /* Reset default parking lot */
    default_parkinglot[0] = '\0';
 
    min_reg_expire = IAX_DEFAULT_REG_EXPIRE;
    max_reg_expire = IAX_DEFAULT_REG_EXPIRE;
    global_max_trunk_mtu = MAX_TRUNK_MTU;
    global_maxcallno = DEFAULT_MAXCALLNO_LIMIT;
    global_maxcallno_nonval = DEFAULT_MAXCALLNO_LIMIT_NONVAL;
 
    maxauthreq = 3;
 
    srvlookup = 0;
    iax2_authmethods = 0;
 
    v = ast_variable_browse(cfg, "general");
 
    /* Seed initial tos value */
    tosval = ast_variable_retrieve(cfg, "general", "tos");
    if (tosval) {
       if (ast_str2tos(tosval, &qos.tos))
          ast_log(LOG_WARNING, "Invalid tos value, refer to QoS documentation\n");
    }
    /* Seed initial cos value */
    tosval = ast_variable_retrieve(cfg, "general", "cos");
    if (tosval) {
       if (ast_str2cos(tosval, &qos.cos))
          ast_log(LOG_WARNING, "Invalid cos value, refer to QoS documentation\n");
    }
    while(v) {
       if (!strcasecmp(v->name, "bindport")) {
          if (reload) {
             ast_log(LOG_NOTICE, "Ignoring bindport on reload\n");
          }
          else if (ast_parse_arg(v->value, PARSE_UINT32 | PARSE_IN_RANGE, &portno, 1024, 65535)) {
             portno = IAX_DEFAULT_PORTNO;
          }
       } else if (!strcasecmp(v->name, "pingtime")){
          ping_time = atoi(v->value);
       }
       else if (!strcasecmp(v->name, "iaxthreadcount")) {
          if (reload) {
             if (atoi(v->value) != iaxthreadcount)
                ast_log(LOG_NOTICE, "Ignoring any changes to iaxthreadcount during reload\n");
          } else {
             iaxthreadcount = atoi(v->value);
             if (iaxthreadcount < 1) {
                ast_log(LOG_NOTICE, "iaxthreadcount must be at least 1.\n");
                iaxthreadcount = 1;
             } else if (iaxthreadcount > 256) {
                ast_log(LOG_NOTICE, "limiting iaxthreadcount to 256\n");
                iaxthreadcount = 256;
             }
          }
       } else if (!strcasecmp(v->name, "iaxmaxthreadcount")) {
          if (reload) {
             AST_LIST_LOCK(&dynamic_list);
             iaxmaxthreadcount = atoi(v->value);
             AST_LIST_UNLOCK(&dynamic_list);
          } else {
             iaxmaxthreadcount = atoi(v->value);
             if (iaxmaxthreadcount < 0) {
                ast_log(LOG_NOTICE, "iaxmaxthreadcount must be at least 0.\n");
                iaxmaxthreadcount = 0;
             } else if (iaxmaxthreadcount > 256) {
                ast_log(LOG_NOTICE, "Limiting iaxmaxthreadcount to 256\n");
                iaxmaxthreadcount = 256;
             }
          }
       } else if (!strcasecmp(v->name, "nochecksums")) {
 #ifdef SO_NO_CHECK
          if (ast_true(v->value))
             nochecksums = 1;
          else
             nochecksums = 0;
 #else
          if (ast_true(v->value))
             ast_log(LOG_WARNING, "Disabling RTP checksums is not supported on this operating system!\n");
 #endif
       }
       else if (!strcasecmp(v->name, "maxjitterbuffer"))
          maxjitterbuffer = atoi(v->value);
       else if (!strcasecmp(v->name, "resyncthreshold"))
          resyncthreshold = atoi(v->value);
       else if (!strcasecmp(v->name, "maxjitterinterps"))
          maxjitterinterps = atoi(v->value);
       else if (!strcasecmp(v->name, "jittertargetextra"))
          jittertargetextra = atoi(v->value);
       else if (!strcasecmp(v->name, "lagrqtime"))
          lagrq_time = atoi(v->value);
       else if (!strcasecmp(v->name, "maxregexpire"))
          max_reg_expire = atoi(v->value);
       else if (!strcasecmp(v->name, "minregexpire"))
          min_reg_expire = atoi(v->value);
       else if (!strcasecmp(v->name, "bindaddr")) {
          if (reload) {
             ast_log(LOG_NOTICE, "Ignoring bindaddr on reload\n");
          } else {
 
             if (!ast_parse_arg(v->value, PARSE_ADDR, NULL)) {
 
                ast_sockaddr_parse(&bindaddr, v->value, 0);
 
                if (!ast_sockaddr_port(&bindaddr)) {
                   ast_sockaddr_set_port(&bindaddr, portno);
                }
 
                if (!(ns = ast_netsock_bindaddr(netsock, io, &bindaddr, qos.tos, qos.cos, socket_read, NULL))) {
                   ast_log(LOG_WARNING, "Unable to apply binding to '%s' at line %d\n", v->value, v->lineno);
                } else {
                   ast_verb(2, "Binding IAX2 to address %s\n", ast_sockaddr_stringify(&bindaddr));
 
                   if (defaultsockfd < 0) {
                      defaultsockfd = ast_netsock_sockfd(ns);
                   }
                   ast_netsock_unref(ns);
                }
 
             } else {
                ast_log(LOG_WARNING, "Invalid address '%s' specified, at line %d\n", v->value, v->lineno);
             }
          }
       } else if (!strcasecmp(v->name, "auth")) {
          iax2_authmethods = get_auth_methods(v->value);
          if (iax2_authmethods & IAX_AUTH_PLAINTEXT) {
             ast_log(LOG_WARNING, "Default auth method is set to deprecated 'plaintext' at line %d of iax.conf\n", v->lineno);
          }
       } else if (!strcasecmp(v->name, "authdebug")) {
          authdebug = ast_true(v->value);
       } else if (!strcasecmp(v->name, "encryption")) {
             iax2_encryption |= get_encrypt_methods(v->value);
             if (!iax2_encryption) {
                ast_clear_flag64((&globalflags), IAX_FORCE_ENCRYPT);
             }
       } else if (!strcasecmp(v->name, "forceencryption")) {
          if (ast_false(v->value)) {
             ast_clear_flag64((&globalflags), IAX_FORCE_ENCRYPT);
          } else {
             iax2_encryption |= get_encrypt_methods(v->value);
             if (iax2_encryption) {
                ast_set_flag64((&globalflags), IAX_FORCE_ENCRYPT);
             }
          }
       } else if (!strcasecmp(v->name, "transfer")) {
          if (!strcasecmp(v->value, "mediaonly")) {
             ast_set_flags_to64((&globalflags), IAX_NOTRANSFER|IAX_TRANSFERMEDIA, IAX_TRANSFERMEDIA);
          } else if (ast_true(v->value)) {
             ast_set_flags_to64((&globalflags), IAX_NOTRANSFER|IAX_TRANSFERMEDIA, 0);
          } else
             ast_set_flags_to64((&globalflags), IAX_NOTRANSFER|IAX_TRANSFERMEDIA, IAX_NOTRANSFER);
       } else if (!strcasecmp(v->name, "codecpriority")) {
          if(!strcasecmp(v->value, "caller"))
             ast_set_flag64((&globalflags), IAX_CODEC_USER_FIRST);
          else if(!strcasecmp(v->value, "disabled"))
             ast_set_flag64((&globalflags), IAX_CODEC_NOPREFS);
          else if(!strcasecmp(v->value, "reqonly")) {
             ast_set_flag64((&globalflags), IAX_CODEC_NOCAP);
             ast_set_flag64((&globalflags), IAX_CODEC_NOPREFS);
          }
       } else if (!strcasecmp(v->name, "jitterbuffer"))
          ast_set2_flag64((&globalflags), ast_true(v->value), IAX_USEJITTERBUF);
       else if (!strcasecmp(v->name, "delayreject"))
          delayreject = ast_true(v->value);
       else if (!strcasecmp(v->name, "allowfwdownload"))
          ast_set2_flag64((&globalflags), ast_true(v->value), IAX_ALLOWFWDOWNLOAD);
       else if (!strcasecmp(v->name, "rtcachefriends"))
          ast_set2_flag64((&globalflags), ast_true(v->value), IAX_RTCACHEFRIENDS);
       else if (!strcasecmp(v->name, "rtignoreregexpire"))
          ast_set2_flag64((&globalflags), ast_true(v->value), IAX_RTIGNOREREGEXPIRE);
       else if (!strcasecmp(v->name, "rtupdate"))
          ast_set2_flag64((&globalflags), ast_true(v->value), IAX_RTUPDATE);
       else if (!strcasecmp(v->name, "rtsavesysname"))
          ast_set2_flag64((&globalflags), ast_true(v->value), IAX_RTSAVE_SYSNAME);
       else if (!strcasecmp(v->name, "trunktimestamps"))
          ast_set2_flag64(&globalflags, ast_true(v->value), IAX_TRUNKTIMESTAMPS);
       else if (!strcasecmp(v->name, "rtautoclear")) {
          int i = atoi(v->value);
          if(i > 0)
             global_rtautoclear = i;
          else
             i = 0;
          ast_set2_flag64((&globalflags), i || ast_true(v->value), IAX_RTAUTOCLEAR);
       } else if (!strcasecmp(v->name, "trunkfreq")) {
          trunkfreq = atoi(v->value);
          if (trunkfreq < 10) {
             ast_log(LOG_NOTICE, "trunkfreq must be between 10ms and 1000ms, using 10ms instead.\n");
             trunkfreq = 10;
          } else if (trunkfreq > 1000) {
             ast_log(LOG_NOTICE, "trunkfreq must be between 10ms and 1000ms, using 1000ms instead.\n");
             trunkfreq = 1000;
          }
          if (timer) {
             ast_timer_set_rate(timer, 1000 / trunkfreq);
          }
       } else if (!strcasecmp(v->name, "trunkmtu")) {
          mtuv = atoi(v->value);
          if (mtuv  == 0 )
             global_max_trunk_mtu = 0;
          else if (mtuv >= 172 && mtuv < 4000)
             global_max_trunk_mtu = mtuv;
          else
             ast_log(LOG_NOTICE, "trunkmtu value out of bounds (%d) at line %d\n",
                mtuv, v->lineno);
       } else if (!strcasecmp(v->name, "trunkmaxsize")) {
          trunkmaxsize = atoi(v->value);
          if (trunkmaxsize == 0)
             trunkmaxsize = MAX_TRUNKDATA;
       } else if (!strcasecmp(v->name, "autokill")) {
          if (sscanf(v->value, "%30d", &x) == 1) {
             if (x >= 0)
                autokill = x;
             else
                ast_log(LOG_NOTICE, "Nice try, but autokill has to be >0 or 'yes' or 'no' at line %d\n", v->lineno);
          } else if (ast_true(v->value)) {
             autokill = DEFAULT_MAXMS;
          } else {
             autokill = 0;
          }
       } else if (!strcasecmp(v->name, "bandwidth")) {
          if (!strcasecmp(v->value, "low")) {
             capability = iax2_codec_pref_from_bitfield(&prefs_new,
                IAX_CAPABILITY_LOWBANDWIDTH);
          } else if (!strcasecmp(v->value, "medium")) {
             capability = iax2_codec_pref_from_bitfield(&prefs_new,
                IAX_CAPABILITY_MEDBANDWIDTH);
          } else if (!strcasecmp(v->value, "high")) {
             capability = iax2_codec_pref_from_bitfield(&prefs_new,
                IAX_CAPABILITY_FULLBANDWIDTH);
          } else {
             ast_log(LOG_WARNING, "bandwidth must be either low, medium, or high\n");
          }
       } else if (!strcasecmp(v->name, "allow")) {
          iax2_parse_allow_disallow(&prefs_new, &capability, v->value, 1);
       } else if (!strcasecmp(v->name, "disallow")) {
          iax2_parse_allow_disallow(&prefs_new, &capability, v->value, 0);
       } else if (!strcasecmp(v->name, "register")) {
          iax2_register(v->value, v->lineno);
       } else if (!strcasecmp(v->name, "iaxcompat")) {
          iaxcompat = ast_true(v->value);
       } else if (!strcasecmp(v->name, "regcontext")) {
          ast_copy_string(regcontext, v->value, sizeof(regcontext));
          /* Create context if it doesn't exist already */
          ast_context_find_or_create(NULL, NULL, regcontext, "IAX2");
       } else if (!strcasecmp(v->name, "tos")) {
          if (ast_str2tos(v->value, &qos.tos))
             ast_log(LOG_WARNING, "Invalid tos value at line %d, refer to QoS documentation\n", v->lineno);
       } else if (!strcasecmp(v->name, "cos")) {
          if (ast_str2cos(v->value, &qos.cos))
             ast_log(LOG_WARNING, "Invalid cos value at line %d, refer to QoS documentation\n", v->lineno);
       } else if (!strcasecmp(v->name, "parkinglot")) {
          ast_copy_string(default_parkinglot, v->value, sizeof(default_parkinglot));
       } else if (!strcasecmp(v->name, "accountcode")) {
          ast_copy_string(accountcode, v->value, sizeof(accountcode));
       } else if (!strcasecmp(v->name, "mohinterpret")) {
          ast_copy_string(mohinterpret, v->value, sizeof(mohinterpret));
       } else if (!strcasecmp(v->name, "mohsuggest")) {
          ast_copy_string(mohsuggest, v->value, sizeof(mohsuggest));
       } else if (!strcasecmp(v->name, "amaflags")) {
          format = ast_channel_string2amaflag(v->value);
          if (format < 0) {
             ast_log(LOG_WARNING, "Invalid AMA Flags: %s at line %d\n", v->value, v->lineno);
          } else {
             amaflags = format;
          }
       } else if (!strcasecmp(v->name, "language")) {
          ast_copy_string(language, v->value, sizeof(language));
       } else if (!strcasecmp(v->name, "maxauthreq")) {
          maxauthreq = atoi(v->value);
          if (maxauthreq < 0)
             maxauthreq = 0;
       } else if (!strcasecmp(v->name, "adsi")) {
          adsi = ast_true(v->value);
       } else if (!strcasecmp(v->name, "srvlookup")) {
          srvlookup = ast_true(v->value);
       } else if (!strcasecmp(v->name, "connectedline")) {
          if (ast_true(v->value)) {
             ast_set_flag64((&globalflags), IAX_SENDCONNECTEDLINE | IAX_RECVCONNECTEDLINE);
          } else if (!strcasecmp(v->value, "send")) {
             ast_clear_flag64((&globalflags), IAX_RECVCONNECTEDLINE);
             ast_set_flag64((&globalflags), IAX_SENDCONNECTEDLINE);
          } else if (!strcasecmp(v->value, "receive")) {
             ast_clear_flag64((&globalflags), IAX_SENDCONNECTEDLINE);
             ast_set_flag64((&globalflags), IAX_RECVCONNECTEDLINE);
          } else {
             ast_clear_flag64((&globalflags), IAX_SENDCONNECTEDLINE | IAX_RECVCONNECTEDLINE);
          }
       } else if (!strcasecmp(v->name, "maxcallnumbers")) {
          if (sscanf(v->value, "%10hu", &global_maxcallno) != 1) {
             ast_log(LOG_WARNING, "maxcallnumbers must be set to a valid number.  %s is not valid at line %d\n", v->value, v->lineno);
          }
       } else if (!strcasecmp(v->name, "maxcallnumbers_nonvalidated")) {
          if (sscanf(v->value, "%10hu", &global_maxcallno_nonval) != 1) {
             ast_log(LOG_WARNING, "maxcallnumbers_nonvalidated must be set to a valid number.  %s is not valid at line %d.\n", v->value, v->lineno);
          }
       } else if (!strcasecmp(v->name, "calltokenoptional")) {
          if (add_calltoken_ignore(v->value)) {
             ast_log(LOG_WARNING, "Invalid calltokenoptional address range - '%s' line %d\n", v->value, v->lineno);
             return -1;
          }
       } else if (!strcasecmp(v->name, "calltokenexpiration")) {
          int temp = -1;
          sscanf(v->value, "%u", &temp);
          if( temp <= 0 ){
             ast_log(LOG_WARNING, "Invalid calltokenexpiration value %s. Should be integer greater than 0.\n", v->value);
          } else {
             max_calltoken_delay = temp;
          }
       }  else if (!strcasecmp(v->name, "subscribe_network_change_event")) {
          if (ast_true(v->value)) {
             subscribe_network_change = 1;
          } else if (ast_false(v->value)) {
             subscribe_network_change = 0;
          } else {
             ast_log(LOG_WARNING, "subscribe_network_change_event value %s is not valid at line %d.\n", v->value, v->lineno);
          }
       } else if (!strcasecmp(v->name, "shrinkcallerid")) {
          if (ast_true(v->value)) {
             ast_set_flag64((&globalflags), IAX_SHRINKCALLERID);
          } else if (ast_false(v->value)) {
             ast_clear_flag64((&globalflags), IAX_SHRINKCALLERID);
          } else {
             ast_log(LOG_WARNING, "shrinkcallerid value %s is not valid at line %d.\n", v->value, v->lineno);
          }
       }/*else if (strcasecmp(v->name,"type")) */
       /* ast_log(LOG_WARNING, "Ignoring %s\n", v->name); */
       v = v->next;
    }
 
    if (subscribe_network_change) {
       network_change_stasis_subscribe();
    } else {
       network_change_stasis_unsubscribe();
    }
 
    if (defaultsockfd < 0) {
 
       ast_sockaddr_set_port(&bindaddr, portno);
 
       if (!(ns = ast_netsock_bindaddr(netsock, io, &bindaddr, qos.tos, qos.cos, socket_read, NULL))) {
          ast_log(LOG_ERROR, "Unable to create network socket: %s\n", strerror(errno));
       } else {
          ast_verb(2, "Binding IAX2 to default address %s\n", ast_sockaddr_stringify(&bindaddr));
          defaultsockfd = ast_netsock_sockfd(ns);
          ast_netsock_unref(ns);
       }
    }
    if (reload) {
       ast_netsock_release(outsock);
       outsock = ast_netsock_list_alloc();
       if (!outsock) {
          ast_log(LOG_ERROR, "Could not allocate outsock list.\n");
          return -1;
       }
       ast_netsock_init(outsock);
    }
 
    if (min_reg_expire > max_reg_expire) {
       ast_log(LOG_WARNING, "Minimum registration interval of %d is more than maximum of %d, resetting minimum to %d\n",
          min_reg_expire, max_reg_expire, max_reg_expire);
       min_reg_expire = max_reg_expire;
    }
    prefs_global = prefs_new;
    iax2_capability = capability;
 
    if (ucfg) {
       struct ast_variable *gen;
       int genhasiax;
       int genregisteriax;
       const char *hasiax, *registeriax;
 
       genhasiax = ast_true(ast_variable_retrieve(ucfg, "general", "hasiax"));
       genregisteriax = ast_true(ast_variable_retrieve(ucfg, "general", "registeriax"));
       gen = ast_variable_browse(ucfg, "general");
       cat = ast_category_browse(ucfg, NULL);
       while (cat) {
          if (strcasecmp(cat, "general")) {
             hasiax = ast_variable_retrieve(ucfg, cat, "hasiax");
             registeriax = ast_variable_retrieve(ucfg, cat, "registeriax");
             if (ast_true(hasiax) || (!hasiax && genhasiax)) {
                /* Start with general parameters, then specific parameters, user and peer */
                user = build_user(cat, gen, ast_variable_browse(ucfg, cat), 0);
                if (user) {
                   ao2_link(users, user);
                   user = user_unref(user);
                }
                peer = build_peer(cat, gen, ast_variable_browse(ucfg, cat), 0);
                if (peer) {
                   if (ast_test_flag64(peer, IAX_DYNAMIC)) {
                      reg_source_db(peer);
                   }
                   ao2_link(peers, peer);
                   peer = peer_unref(peer);
                }
             }
             if (ast_true(registeriax) || (!registeriax && genregisteriax)) {
                char tmp[256];
                const char *host = ast_variable_retrieve(ucfg, cat, "host");
                const char *username = ast_variable_retrieve(ucfg, cat, "username");
                const char *secret = ast_variable_retrieve(ucfg, cat, "secret");
                if (!host)
                   host = ast_variable_retrieve(ucfg, "general", "host");
                if (!username)
                   username = ast_variable_retrieve(ucfg, "general", "username");
                if (!secret)
                   secret = ast_variable_retrieve(ucfg, "general", "secret");
                if (!ast_strlen_zero(username) && !ast_strlen_zero(host)) {
                   if (!ast_strlen_zero(secret))
                      snprintf(tmp, sizeof(tmp), "%s:%s@%s", username, secret, host);
                   else
                      snprintf(tmp, sizeof(tmp), "%s@%s", username, host);
                   iax2_register(tmp, 0);
                }
             }
          }
          cat = ast_category_browse(ucfg, cat);
       }
       ast_config_destroy(ucfg);
    }
 
    cat = ast_category_browse(cfg, NULL);
    while(cat) {
       if (strcasecmp(cat, "general")) {
          utype = ast_variable_retrieve(cfg, cat, "type");
          if (!strcasecmp(cat, "callnumberlimits")) {
             build_callno_limits(ast_variable_browse(cfg, cat));
          } else if (utype) {
             if (!strcasecmp(utype, "user") || !strcasecmp(utype, "friend")) {
                user = build_user(cat, ast_variable_browse(cfg, cat), NULL, 0);
                if (user) {
                   ao2_link(users, user);
                   user = user_unref(user);
                }
             }
             if (!strcasecmp(utype, "peer") || !strcasecmp(utype, "friend")) {
                peer = build_peer(cat, ast_variable_browse(cfg, cat), NULL, 0);
                if (peer) {
                   if (ast_test_flag64(peer, IAX_DYNAMIC))
                      reg_source_db(peer);
                   ao2_link(peers, peer);
                   peer = peer_unref(peer);
                }
             } else if (strcasecmp(utype, "user")) {
                ast_log(LOG_WARNING, "Unknown type '%s' for '%s' in %s\n", utype, cat, config_file);
             }
          } else
             ast_log(LOG_WARNING, "Section '%s' lacks type\n", cat);
       }
       cat = ast_category_browse(cfg, cat);
    }
    ast_config_destroy(cfg);
    return 1;
 }

◆ set_config_destroy()

static void set_config_destroy ( void )

static

Definition at line 13459 of file chan_iax2.c.

References accountcode, addr_range_delme_cb(), amaflags, ao2_callback, ast_clear_flag64, delayreject, delete_users(), IAX_NOTRANSFER, IAX_RECVCONNECTEDLINE, IAX_SENDCONNECTEDLINE, IAX_TRANSFERMEDIA, IAX_USEJITTERBUF, language, MAX_TRUNKDATA, mohinterpret, mohsuggest, NULL, OBJ_NODATA, and trunkmaxsize.

Referenced by set_config().

 {
    strcpy(accountcode, "");
    strcpy(language, "");
    strcpy(mohinterpret, "");
    strcpy(mohsuggest, "");
    trunkmaxsize = MAX_TRUNKDATA;
    amaflags = 0;
    delayreject = 0;
    ast_clear_flag64((&globalflags), IAX_NOTRANSFER | IAX_TRANSFERMEDIA | IAX_USEJITTERBUF |
       IAX_SENDCONNECTEDLINE | IAX_RECVCONNECTEDLINE);
    delete_users();
    ao2_callback(callno_limits, OBJ_NODATA, addr_range_delme_cb, NULL);
    ao2_callback(calltoken_ignores, OBJ_NODATA, addr_range_delme_cb, NULL);
 }

◆ set_hangup_source_and_cause()

static void set_hangup_source_and_cause	(	int	callno,
		unsigned char	causecode
	)

static

Definition at line 10062 of file chan_iax2.c.

References ast_channel_hangupcause_set(), ast_channel_name(), ast_channel_ref, ast_channel_unlock, ast_channel_unref, ast_mutex_lock, ast_mutex_unlock, ast_set_hangupsource(), ast_strdupa, iax2_lock_owner(), name, and chan_iax2_pvt::owner.

Referenced by socket_process_helper().

 {
    iax2_lock_owner(callno);
    if (iaxs[callno] && iaxs[callno]->owner) {
       struct ast_channel *owner;
       const char *name;
 
       owner = iaxs[callno]->owner;
       if (causecode) {
          ast_channel_hangupcause_set(owner, causecode);
       }
       name = ast_strdupa(ast_channel_name(owner));
       ast_channel_ref(owner);
       ast_channel_unlock(owner);
       ast_mutex_unlock(&iaxsl[callno]);
       ast_set_hangupsource(owner, name, 0);
       ast_channel_unref(owner);
       ast_mutex_lock(&iaxsl[callno]);
    }
 }

◆ set_peercnt_limit()

static void set_peercnt_limit ( struct peercnt * peercnt )

static

Definition at line 2553 of file chan_iax2.c.

References peercnt::addr, addr_range_match_address_cb(), ao2_callback, ao2_ref, ast_debug, ast_sockaddr_copy(), ast_sockaddr_stringify(), global_maxcallno, peercnt::limit, addr_range::limit, and peercnt::reg.

Referenced by peercnt_add(), peercnt_modify(), and set_peercnt_limit_all_cb().

 {
    uint16_t limit = global_maxcallno;
    struct addr_range *addr_range;
    struct ast_sockaddr addr;
 
    ast_sockaddr_copy(&addr, &peercnt->addr);
 
    if (peercnt->reg && peercnt->limit) {
       return; /* this peercnt has a custom limit set by a registration */
    }
 
    if ((addr_range = ao2_callback(callno_limits, 0, addr_range_match_address_cb, &addr))) {
       limit = addr_range->limit;
       ast_debug(1, "custom addr_range %d found for %s\n", limit, ast_sockaddr_stringify(&addr));
       ao2_ref(addr_range, -1);
    }
 
    peercnt->limit = limit;
 }

◆ set_peercnt_limit_all_cb()

static int set_peercnt_limit_all_cb	(	void *	obj,
		void *	arg,
		int	flags
	)

static

Definition at line 2578 of file chan_iax2.c.

References ast_debug, and set_peercnt_limit().

Referenced by reload_config().

 {
    struct peercnt *peercnt = obj;
 
    set_peercnt_limit(peercnt);
    ast_debug(1, "Reset limits for peercnts table\n");
 
    return 0;
 }

◆ signal_condition()

static void signal_condition	(	ast_mutex_t *	lock,
		ast_cond_t *	cond
	)

static

Definition at line 1110 of file chan_iax2.c.

References ast_cond_signal, ast_mutex_lock, and ast_mutex_unlock.

Referenced by __schedule_action(), cleanup_thread_list(), iax2_process_thread(), and socket_read().

 {
    ast_mutex_lock(lock);
    ast_cond_signal(cond);
    ast_mutex_unlock(lock);
 }

◆ socket_process()

static int socket_process ( struct iax2_thread * thread )

static

Definition at line 11968 of file chan_iax2.c.

References ast_callid_threadassoc_remove(), ast_read_threadstorage_callid(), and socket_process_helper().

Referenced by handle_deferred_full_frames(), iax2_process_thread(), and log_jitterstats().

 {
    int res = socket_process_helper(thread);
    if (ast_read_threadstorage_callid()) {
       ast_callid_threadassoc_remove();
    }
    return res;
 }

◆ socket_process_helper()

static int socket_process_helper ( struct iax2_thread * thread )

static

Definition at line 10083 of file chan_iax2.c.

References chan_iax2_pvt::addr, iax_frame::af, iax_frame::afdatalen, ao2_cleanup, ao2_ref, chan_iax2_pvt::aseqno, ast_aes_set_decrypt_key(), ast_alloca, ast_bridge_transfer_blind(), AST_BRIDGE_TRANSFER_SUCCESS, ast_callid_threadassoc_add(), ast_calloc, ast_control_pvt_cause_code::ast_cause, AST_CAUSE_BEARERCAPABILITY_NOTAVAIL, AST_CAUSE_BUSY, AST_CAUSE_CONGESTION, AST_CAUSE_FACILITY_NOT_SUBSCRIBED, AST_CAUSE_NO_ROUTE_DESTINATION, ast_channel_caller(), ast_channel_datastore_add(), ast_channel_hangupcause_hash_set(), ast_channel_hangupcause_set(), AST_CHANNEL_NAME, ast_channel_name(), ast_channel_nativeformats(), ast_channel_nativeformats_set(), ast_channel_readformat(), ast_channel_ref, ast_channel_unlock, ast_channel_unref, ast_channel_writeformat(), ast_clear_flag, ast_clear_flag64, ast_codec_samples_count(), ast_connected_line_parse_data(), AST_CONTROL_BUSY, AST_CONTROL_CONGESTION, AST_CONTROL_CONNECTED_LINE, AST_CONTROL_HANGUP, AST_CONTROL_PROGRESS, AST_CONTROL_PVT_CAUSE_CODE, AST_CONTROL_REDIRECTING, ast_copy_string(), ast_datastore_alloc, ast_datastore_free(), ast_debug, AST_DEVICE_NOT_INUSE, AST_DEVICE_UNAVAILABLE, AST_DEVSTATE_CACHABLE, ast_devstate_changed(), ast_endpoint_blob_publish(), AST_ENDPOINT_ONLINE, ast_endpoint_set_state(), ast_endpoint_state_type(), ast_exists_extension(), ast_format_cap_alloc, ast_format_cap_append, AST_FORMAT_CAP_FLAG_DEFAULT, ast_format_cap_get_names(), AST_FORMAT_CAP_NAMES_LEN, ast_format_cmp(), AST_FORMAT_CMP_EQUAL, ast_format_compatibility_bitfield2format(), ast_format_compatibility_format2bitfield(), ast_format_get_name(), ast_format_slin, ast_frame_byteswap_be, AST_FRAME_CONTROL, AST_FRAME_IAX, AST_FRAME_NULL, AST_FRAME_TEXT, AST_FRAME_VIDEO, AST_FRAME_VOICE, ast_free, ast_iax2_new(), ast_json_pack(), ast_json_unref(), AST_LIST_HEAD, AST_LIST_HEAD_INIT, AST_LIST_INSERT_TAIL, AST_LIST_LAST, AST_LIST_LOCK, AST_LIST_TRAVERSE, AST_LIST_UNLOCK, ast_log, ast_mutex_lock, ast_mutex_trylock, ast_mutex_unlock, ast_party_connected_line_free(), ast_party_connected_line_init(), ast_party_id_presentation(), ast_queue_control_data(), AST_SCHED_DEL, ast_set_callerid(), ast_set_flag, ast_set_flag64, ast_set_read_format(), ast_set_write_format(), ast_sockaddr_cmp(), ast_sockaddr_copy(), ast_sockaddr_isnull(), ast_sockaddr_setnull(), ast_sockaddr_stringify(), AST_STATE_RING, ast_str_alloca, ast_strdupa, ast_string_field_set, ast_strlen_zero, ast_test_flag, ast_test_flag64, ast_var_assign, ast_variables_destroy(), ast_verb, auth_fail(), authdebug, authenticate_reply(), authenticate_request(), authenticate_verify(), chan_iax2_pvt::authmethods, iax_ie_data::buf, iax2_thread::buf, iax2_thread::buf_len, CACHE_FLAG_TRANSMITTED, iax_frame::cacheable, calc_timestamp(), iax_ies::called_number, chan_iax2_pvt::calling_pres, iax_frame::callno, iax2_peer::callno, chan_iax2_pvt::callno, iax_ies::calltoken, iax_ies::calltokendata, chan_iax2_pvt::capability, iax_ies::cause, iax_ies::causecode, iax_ies::challenge, ast_control_pvt_cause_code::chan_name, check_access(), check_provisioning(), chan_iax2_pvt::chosenformat, cid_name, cid_num, chan_iax2_pvt::cid_num, ast_control_pvt_cause_code::code, iax_ies::codec_prefs, complete_dpreply(), complete_transfer(), construct_rr(), context, chan_iax2_pvt::context, ast_iax2_full_hdr::csub, ast_datastore::data, ast_frame::data, ast_frame::datalen, DATASTORE_INHERIT_FOREVER, ast_iax2_full_hdr::dcallno, DEADLOCK_AVOIDANCE, decrypt_frame(), delayreject, iax_ies::devicetype, dp_lookup(), iax_ies::encmethods, chan_iax2_pvt::encmethods, iax2_peer::endpoint, ast_var_t::entries, chan_iax2_pvt::error, exists(), exten, chan_iax2_pvt::exten, iax_frame::final, find_callno(), chan_iax2_pvt::first_iax_message, iax2_dpcache::flags, iax_ies::format, format, ast_frame_subclass::format, ast_frame_subclass::frame_ending, frame_queue, chan_iax2_pvt::frames_received, ast_frame::frametype, iax_ies::fwdesc, handle_call_token(), iax2_peer::historicms, chan_iax2_pvt::hold_signaling, iax2_ack_registry(), iax2_allow_new(), iax2_codec_choose(), iax2_codec_pref_best_bitfield2cap(), iax2_codec_pref_convert(), iax2_codec_pref_index(), iax2_codec_pref_string(), iax2_destroy(), iax2_dprequest(), iax2_format_compatibility_best(), iax2_format_compatibility_cap2bitfield(), iax2_getformatname(), iax2_getformatname_multiple(), iax2_is_control_frame_allowed(), iax2_lock_owner(), iax2_poke_peer_s(), iax2_publish_registry(), iax2_queue_frame(), iax2_queue_hold(), iax2_queue_unhold(), iax2_sched_add(), iax2_send(), iax2_vnak(), IAX_ALLOWFWDOWNLOAD, IAX_ALREADYGONE, IAX_AUTH_MD5, IAX_AUTH_RSA, IAX_CALLENCRYPTED, IAX_CODEC_NOCAP, IAX_CODEC_NOPREFS, IAX_CODEC_USER_FIRST, IAX_COMMAND_ACCEPT, IAX_COMMAND_ACK, IAX_COMMAND_AUTHREP, IAX_COMMAND_AUTHREQ, IAX_COMMAND_CALLTOKEN, IAX_COMMAND_DIAL, IAX_COMMAND_DPREP, IAX_COMMAND_DPREQ, IAX_COMMAND_FWDATA, IAX_COMMAND_FWDOWNL, IAX_COMMAND_HANGUP, IAX_COMMAND_INVAL, IAX_COMMAND_LAGRP, IAX_COMMAND_LAGRQ, IAX_COMMAND_NEW, IAX_COMMAND_PING, IAX_COMMAND_POKE, IAX_COMMAND_PONG, IAX_COMMAND_QUELCH, IAX_COMMAND_REGACK, IAX_COMMAND_REGAUTH, IAX_COMMAND_REGREJ, IAX_COMMAND_REGREL, IAX_COMMAND_REGREQ, IAX_COMMAND_REJECT, IAX_COMMAND_RTKEY, IAX_COMMAND_TRANSFER, IAX_COMMAND_TXACC, IAX_COMMAND_TXCNT, IAX_COMMAND_TXMEDIA, IAX_COMMAND_TXREADY, IAX_COMMAND_TXREJ, IAX_COMMAND_TXREL, IAX_COMMAND_TXREQ, IAX_COMMAND_UNQUELCH, IAX_COMMAND_UNSUPPORT, IAX_COMMAND_VNAK, IAX_DEBUGDIGEST, IAX_DELAYPBXSTART, IAX_ENCRYPTED, iax_firmware_append(), IAX_FLAG_FULL, IAX_FLAG_RETRANS, IAX_FORCE_ENCRYPT, iax_frame_subclass2str(), iax_frame_wrap(), iax_ie_append_byte(), iax_ie_append_int(), iax_ie_append_short(), iax_ie_append_str(), iax_ie_append_versioned_uint64(), IAX_IE_CALLNO, IAX_IE_CAUSE, IAX_IE_CAUSECODE, IAX_IE_FORMAT, IAX_IE_FORMAT2, IAX_IE_IAX_UNKNOWN, IAX_IMMEDIATE, iax_outputframe(), iax_parse_ies(), IAX_PROVISION, iax_pvt_callid_get(), iax_pvt_callid_new(), IAX_QUELCH, IAX_RECVCONNECTEDLINE, IAX_STATE_AUTHENTICATED, IAX_STATE_STARTED, IAX_STATE_TBD, IAX_TRUNK, iax_ies::iax_unknown, iaxcompat, iaxdebug, iaxfrdup2(), chan_iax2_pvt::iaxvars, ast_party_caller::id, ast_party_connected_line::id, ast_datastore::inheritance, chan_iax2_pvt::initid, chan_iax2_pvt::inkeys, ast_frame_subclass::integer, iax2_thread::ioaddr, iax2_thread::iofd, iax_frame::iseqno, ast_iax2_full_hdr::iseqno, chan_iax2_pvt::iseqno, chan_iax2_pvt::last, chan_iax2_pvt::last_iax_message, iax2_peer::lastms, ast_frame::len, LOG_ERROR, log_jitterstats(), LOG_NOTICE, LOG_WARNING, make_trunk(), ast_frame::mallocd, iax2_peer::maxms, merge_encryption(), env::meta, ast_iax2_meta_hdr::metacmd, chan_iax2_pvt::mohsuggest, iax_ies::musiconhold, ast_variable::name, ast_party_id::name, iax2_peer::name, NEW_ALLOW, NEW_ALLOW_CALLTOKEN_VALIDATED, NEW_PREVENT, ast_variable::next, NULL, ast_party_id::number, ast_frame::offset, iax_frame::oseqno, ast_iax2_full_hdr::oseqno, chan_iax2_pvt::oseqno, iax_frame::outoforder, chan_iax2_pvt::owner, peer_ref(), peer_unref(), chan_iax2_pvt::peercallno, chan_iax2_pvt::peercapability, chan_iax2_pvt::peerformat, iax2_peer::pokeexpire, iax2_peer::pokefreqnotok, iax2_peer::pokefreqok, iax_ie_data::pos, chan_iax2_pvt::prefs, ast_party_name::presentation, ast_party_number::presentation, iax_ies::provver, iax_ies::provverpres, ast_frame::ptr, RAII_VAR, raw_hangup(), iax_ies::refresh, REG_STATE_REJECTED, register_verify(), registry_authrequest(), registry_rerequest(), remove_by_peercallno(), resend_with_token(), iax_frame::retries, chan_iax2_pvt::rprefs, chan_iax2_pvt::rseqno, S_COR, S_OR, ast_frame::samples, save_osptoken(), save_rr(), ast_iax2_full_hdr::scallno, schedule_delivery(), chan_iax2_pvt::secret, send_apathetic_reply(), send_command(), send_command_final(), send_command_immediate(), send_command_transfer(), send_signaling(), iax_ies::serviceident, set_hangup_source_and_cause(), iax2_peer::smoothing, socket_process_meta(), spawn_dp_lookup(), ast_frame::src, chan_iax2_pvt::state, stop_stuff(), store_by_peercallno(), ast_party_name::str, ast_party_number::str, ast_frame::subclass, iax_frame::transfer, TRANSFER_BEGIN, TRANSFER_MBEGIN, TRANSFER_MEDIA, TRANSFER_MEDIAPASS, TRANSFER_MREADY, TRANSFER_NONE, TRANSFER_READY, TRANSFER_RELEASED, chan_iax2_pvt::transferring, try_transfer(), iax_frame::ts, ast_iax2_full_hdr::ts, ast_iax2_full_hdr::type, uncompress_subclass(), update_registry(), iax_ies::username, ast_party_name::valid, ast_party_number::valid, ast_variable::value, var, iax_ies::vars, VERBOSE_PREFIX_4, chan_iax2_pvt::videoformat, vnak_retransmit(), chan_iax2_pvt::voiceformat, and ast_iax2_meta_hdr::zeros.

Referenced by socket_process().

 {
    struct ast_sockaddr addr;
    int res;
    int updatehistory=1;
    int new = NEW_PREVENT;
    int dcallno = 0;
    char decrypted = 0;
    struct ast_iax2_full_hdr *fh = (struct ast_iax2_full_hdr *)thread->buf;
    struct ast_iax2_mini_hdr *mh = (struct ast_iax2_mini_hdr *)thread->buf;
    struct ast_iax2_meta_hdr *meta = (struct ast_iax2_meta_hdr *)thread->buf;
    struct ast_iax2_video_hdr *vh = (struct ast_iax2_video_hdr *)thread->buf;
    struct iax_frame *fr;
    struct iax_frame *cur;
    struct ast_frame f = { 0, };
    struct ast_channel *c = NULL;
    struct iax2_dpcache *dp;
    struct iax2_peer *peer;
    struct iax_ies ies;
    struct iax_ie_data ied0, ied1;
    iax2_format format;
    int fd;
    int exists;
    int minivid = 0;
    char empty[32]="";      /* Safety measure */
    struct iax_frame *duped_fr;
    char host_pref_buf[128];
    char caller_pref_buf[128];
    struct iax2_codec_pref pref;
    char *using_prefs = "mine";
 
    /* allocate an iax_frame with 4096 bytes of data buffer */
    fr = ast_alloca(sizeof(*fr) + 4096);
    memset(fr, 0, sizeof(*fr));
    fr->afdatalen = 4096; /* From ast_alloca() above */
 
    /* Copy frequently used parameters to the stack */
    res = thread->buf_len;
    fd = thread->iofd;
    ast_sockaddr_copy(&addr, &thread->ioaddr);
 
    if (res < sizeof(*mh)) {
       ast_log(LOG_WARNING, "midget packet received (%d of %d min)\n", res, (int) sizeof(*mh));
       return 1;
    }
    if ((vh->zeros == 0) && (ntohs(vh->callno) & 0x8000)) {
       if (res < sizeof(*vh)) {
          ast_log(LOG_WARNING, "Rejecting packet from '%s' that is flagged as a video frame but is too short\n",
                ast_sockaddr_stringify(&addr));
          return 1;
       }
 
       /* This is a video frame, get call number */
       fr->callno = find_callno(ntohs(vh->callno) & ~0x8000, dcallno, &addr, new, fd, 0);
       minivid = 1;
    } else if ((meta->zeros == 0) && !(ntohs(meta->metacmd) & 0x8000))
       return socket_process_meta(res, meta, &addr, fd, fr);
 
 #ifdef DEBUG_SUPPORT
    if (res >= sizeof(*fh))
       iax_outputframe(NULL, fh, 1, &addr, res - sizeof(*fh));
 #endif
    if (ntohs(mh->callno) & IAX_FLAG_FULL) {
       if (res < sizeof(*fh)) {
          ast_log(LOG_WARNING, "Rejecting packet from '%s' that is flagged as a full frame but is too short\n",
             ast_sockaddr_stringify(&addr));
          return 1;
       }
 
       /* Get the destination call number */
       dcallno = ntohs(fh->dcallno) & ~IAX_FLAG_RETRANS;
 
 
       /* check to make sure this full frame isn't encrypted before we attempt
        * to look inside of it. If it is encrypted, decrypt it first. Its ok if the
        * callno is not found here, that just means one hasn't been allocated for
        * this connection yet. */
       if ((dcallno != 1) && (fr->callno = find_callno(ntohs(mh->callno) & ~IAX_FLAG_FULL, dcallno, &addr, NEW_PREVENT, fd, 1))) {
          ast_mutex_lock(&iaxsl[fr->callno]);
          if (iaxs[fr->callno] && ast_test_flag64(iaxs[fr->callno], IAX_ENCRYPTED)) {
             if (decrypt_frame(fr->callno, fh, &f, &res)) {
                ast_log(LOG_NOTICE, "Packet Decrypt Failed!\n");
                ast_mutex_unlock(&iaxsl[fr->callno]);
                return 1;
             }
             decrypted = 1;
          }
          ast_mutex_unlock(&iaxsl[fr->callno]);
       }
 
       /* Retrieve the type and subclass */
       f.frametype = fh->type;
       if (f.frametype == AST_FRAME_VIDEO) {
          f.subclass.format = ast_format_compatibility_bitfield2format(uncompress_subclass(fh->csub & ~0x40));
          if ((fh->csub >> 6) & 0x1) {
             f.subclass.frame_ending = 1;
          }
       } else if (f.frametype == AST_FRAME_VOICE) {
          f.subclass.format = ast_format_compatibility_bitfield2format(uncompress_subclass(fh->csub));
       } else {
          f.subclass.integer = uncompress_subclass(fh->csub);
       }
 
       /* Deal with POKE/PONG without allocating a callno */
       if (f.frametype == AST_FRAME_IAX && f.subclass.integer == IAX_COMMAND_POKE) {
          /* Reply back with a PONG, but don't care about the result. */
          send_apathetic_reply(1, ntohs(fh->scallno), &addr, IAX_COMMAND_PONG, ntohl(fh->ts), fh->iseqno + 1, fd, NULL);
          return 1;
       } else if (f.frametype == AST_FRAME_IAX && f.subclass.integer == IAX_COMMAND_ACK && dcallno == 1) {
          /* Ignore */
          return 1;
       }
 
       f.datalen = res - sizeof(*fh);
       if (f.datalen) {
          if (f.frametype == AST_FRAME_IAX) {
             if (iax_parse_ies(&ies, thread->buf + sizeof(struct ast_iax2_full_hdr), f.datalen)) {
                ast_log(LOG_WARNING, "Undecodable frame received from '%s'\n", ast_sockaddr_stringify(&addr));
                ast_variables_destroy(ies.vars);
                return 1;
             }
             f.data.ptr = NULL;
             f.datalen = 0;
          } else {
             f.data.ptr = thread->buf + sizeof(struct ast_iax2_full_hdr);
             memset(&ies, 0, sizeof(ies));
          }
       } else {
          if (f.frametype == AST_FRAME_IAX)
             f.data.ptr = NULL;
          else
             f.data.ptr = empty;
          memset(&ies, 0, sizeof(ies));
       }
 
       if (!dcallno && iax2_allow_new(f.frametype, f.subclass.integer, 1)) {
          /* only set NEW_ALLOW if calltoken checks out */
          if (handle_call_token(fh, &ies, &addr, fd)) {
             ast_variables_destroy(ies.vars);
             return 1;
          }
 
          if (ies.calltoken && ies.calltokendata) {
             /* if we've gotten this far, and the calltoken ie data exists,
              * then calltoken validation _MUST_ have taken place.  If calltoken
              * data is provided, it is always validated reguardless of any
              * calltokenoptional or requirecalltoken options */
             new = NEW_ALLOW_CALLTOKEN_VALIDATED;
          } else {
             new = NEW_ALLOW;
          }
       }
    } else {
       /* Don't know anything about it yet */
       f.frametype = AST_FRAME_NULL;
       f.subclass.integer = 0;
       memset(&ies, 0, sizeof(ies));
    }
 
    if (!fr->callno) {
       int check_dcallno = 0;
 
       /*
        * We enforce accurate destination call numbers for ACKs.  This forces the other
        * end to know the destination call number before call setup can complete.
        *
        * Discussed in the following thread:
        *    http://lists.digium.com/pipermail/asterisk-dev/2008-May/033217.html
        */
 
       if ((ntohs(mh->callno) & IAX_FLAG_FULL) && ((f.frametype == AST_FRAME_IAX) && (f.subclass.integer == IAX_COMMAND_ACK))) {
          check_dcallno = 1;
       }
 
       if (!(fr->callno = find_callno(ntohs(mh->callno) & ~IAX_FLAG_FULL, dcallno, &addr, new, fd, check_dcallno))) {
          if (f.frametype == AST_FRAME_IAX && f.subclass.integer == IAX_COMMAND_NEW) {
             send_apathetic_reply(1, ntohs(fh->scallno), &addr, IAX_COMMAND_REJECT, ntohl(fh->ts), fh->iseqno + 1, fd, NULL);
          } else if (f.frametype == AST_FRAME_IAX && (f.subclass.integer == IAX_COMMAND_REGREQ || f.subclass.integer == IAX_COMMAND_REGREL)) {
             send_apathetic_reply(1, ntohs(fh->scallno), &addr, IAX_COMMAND_REGREJ, ntohl(fh->ts), fh->iseqno + 1, fd, NULL);
          }
          ast_variables_destroy(ies.vars);
          return 1;
       }
    }
 
    if (fr->callno > 0) {
       ast_callid mount_callid;
       ast_mutex_lock(&iaxsl[fr->callno]);
       if (iaxs[fr->callno] && ((mount_callid = iax_pvt_callid_get(fr->callno)))) {
          /* Bind to thread */
          ast_callid_threadassoc_add(mount_callid);
       }
    }
 
    if (!fr->callno || !iaxs[fr->callno]) {
       /* A call arrived for a nonexistent destination.  Unless it's an "inval"
          frame, reply with an inval */
       if (ntohs(mh->callno) & IAX_FLAG_FULL) {
          /* We can only raw hangup control frames */
          if (((f.subclass.integer != IAX_COMMAND_INVAL) &&
              (f.subclass.integer != IAX_COMMAND_TXCNT) &&
              (f.subclass.integer != IAX_COMMAND_TXACC) &&
              (f.subclass.integer != IAX_COMMAND_FWDOWNL))||
              (f.frametype != AST_FRAME_IAX))
             raw_hangup(&addr, ntohs(fh->dcallno) & ~IAX_FLAG_RETRANS, ntohs(mh->callno) & ~IAX_FLAG_FULL,
             fd);
       }
       if (fr->callno > 0){
          ast_mutex_unlock(&iaxsl[fr->callno]);
       }
       ast_variables_destroy(ies.vars);
       return 1;
    }
    if (ast_test_flag64(iaxs[fr->callno], IAX_ENCRYPTED) && !decrypted) {
       if (decrypt_frame(fr->callno, fh, &f, &res)) {
          ast_log(LOG_NOTICE, "Packet Decrypt Failed!\n");
          ast_variables_destroy(ies.vars);
          ast_mutex_unlock(&iaxsl[fr->callno]);
          return 1;
       }
       decrypted = 1;
    }
 
 #ifdef DEBUG_SUPPORT
    if (decrypted) {
       iax_outputframe(NULL, fh, 3, &addr, res - sizeof(*fh));
    }
 #endif
 
    if (iaxs[fr->callno]->owner && fh->type == AST_FRAME_IAX &&
          (fh->csub == IAX_COMMAND_HANGUP
          || fh->csub == IAX_COMMAND_REJECT
          || fh->csub == IAX_COMMAND_REGREJ
          || fh->csub == IAX_COMMAND_TXREJ)) {
       struct ast_control_pvt_cause_code *cause_code;
       int data_size = sizeof(*cause_code);
       char subclass[40] = "";
 
       /* get subclass text */
       iax_frame_subclass2str(fh->csub, subclass, sizeof(subclass));
 
       /* add length of "IAX2 " */
       data_size += 5;
       /* for IAX hangup frames, add length of () and number */
       data_size += 3;
       if (ies.causecode > 9) {
          data_size++;
       }
       if (ies.causecode > 99) {
          data_size++;
       }
       /* add length of subclass */
       data_size += strlen(subclass);
 
       cause_code = ast_alloca(data_size);
       memset(cause_code, 0, data_size);
       ast_copy_string(cause_code->chan_name, ast_channel_name(iaxs[fr->callno]->owner), AST_CHANNEL_NAME);
 
       cause_code->ast_cause = ies.causecode;
       snprintf(cause_code->code, data_size - sizeof(*cause_code) + 1, "IAX2 %s(%d)", subclass, ies.causecode);
 
       iax2_lock_owner(fr->callno);
       if (iaxs[fr->callno] && iaxs[fr->callno]->owner) {
          ast_queue_control_data(iaxs[fr->callno]->owner, AST_CONTROL_PVT_CAUSE_CODE, cause_code, data_size);
          ast_channel_hangupcause_hash_set(iaxs[fr->callno]->owner, cause_code, data_size);
          ast_channel_unlock(iaxs[fr->callno]->owner);
       }
       if (!iaxs[fr->callno]) {
          ast_variables_destroy(ies.vars);
          ast_mutex_unlock(&iaxsl[fr->callno]);
          return 1;
       }
    }
 
    /* count this frame */
    iaxs[fr->callno]->frames_received++;
 
    if (!ast_sockaddr_cmp(&addr, &iaxs[fr->callno]->addr) && !minivid &&
       f.subclass.integer != IAX_COMMAND_TXCNT &&      /* for attended transfer */
       f.subclass.integer != IAX_COMMAND_TXACC) {      /* for attended transfer */
       unsigned short new_peercallno;
 
       new_peercallno = (unsigned short) (ntohs(mh->callno) & ~IAX_FLAG_FULL);
       if (new_peercallno && new_peercallno != iaxs[fr->callno]->peercallno) {
          if (iaxs[fr->callno]->peercallno) {
             remove_by_peercallno(iaxs[fr->callno]);
          }
          iaxs[fr->callno]->peercallno = new_peercallno;
          store_by_peercallno(iaxs[fr->callno]);
       }
    }
    if (ntohs(mh->callno) & IAX_FLAG_FULL) {
       if (iaxdebug)
          ast_debug(1, "Received packet %d, (%u, %d)\n", fh->oseqno, f.frametype, f.subclass.integer);
       /* Check if it's out of order (and not an ACK or INVAL) */
       fr->oseqno = fh->oseqno;
       fr->iseqno = fh->iseqno;
       fr->ts = ntohl(fh->ts);
 #ifdef IAXTESTS
       if (test_resync) {
          ast_debug(1, "Simulating frame ts resync, was %u now %u\n", fr->ts, fr->ts + test_resync);
          fr->ts += test_resync;
       }
 #endif /* IAXTESTS */
 #if 0
       if ( (ntohs(fh->dcallno) & IAX_FLAG_RETRANS) ||
            ( (f.frametype != AST_FRAME_VOICE) && ! (f.frametype == AST_FRAME_IAX &&
                         (f.subclass == IAX_COMMAND_NEW ||
                          f.subclass == IAX_COMMAND_AUTHREQ ||
                          f.subclass == IAX_COMMAND_ACCEPT ||
                          f.subclass == IAX_COMMAND_REJECT))      ) )
 #endif
       if ((ntohs(fh->dcallno) & IAX_FLAG_RETRANS) || (f.frametype != AST_FRAME_VOICE))
          updatehistory = 0;
       if ((iaxs[fr->callno]->iseqno != fr->oseqno) &&
          (iaxs[fr->callno]->iseqno ||
             ((f.subclass.integer != IAX_COMMAND_TXCNT) &&
             (f.subclass.integer != IAX_COMMAND_TXREADY) &&     /* for attended transfer */
             (f.subclass.integer != IAX_COMMAND_TXREL) &&    /* for attended transfer */
             (f.subclass.integer != IAX_COMMAND_UNQUELCH ) &&   /* for attended transfer */
             (f.subclass.integer != IAX_COMMAND_TXACC)) ||
             (f.frametype != AST_FRAME_IAX))) {
          if (
           ((f.subclass.integer != IAX_COMMAND_ACK) &&
            (f.subclass.integer != IAX_COMMAND_INVAL) &&
            (f.subclass.integer != IAX_COMMAND_TXCNT) &&
            (f.subclass.integer != IAX_COMMAND_TXREADY) &&      /* for attended transfer */
            (f.subclass.integer != IAX_COMMAND_TXREL) &&     /* for attended transfer */
            (f.subclass.integer != IAX_COMMAND_UNQUELCH ) && /* for attended transfer */
            (f.subclass.integer != IAX_COMMAND_TXACC) &&
            (f.subclass.integer != IAX_COMMAND_VNAK)) ||
            (f.frametype != AST_FRAME_IAX)) {
             /* If it's not an ACK packet, it's out of order. */
             ast_debug(1, "Packet arrived out of order (expecting %d, got %d) (frametype = %u, subclass = %d)\n",
                iaxs[fr->callno]->iseqno, fr->oseqno, f.frametype, f.subclass.integer);
             /* Check to see if we need to request retransmission,
              * and take sequence number wraparound into account */
             if ((unsigned char) (iaxs[fr->callno]->iseqno - fr->oseqno) < 128) {
                /* If we've already seen it, ack it XXX There's a border condition here XXX */
                if ((f.frametype != AST_FRAME_IAX) ||
                      ((f.subclass.integer != IAX_COMMAND_ACK) && (f.subclass.integer != IAX_COMMAND_INVAL))) {
                   ast_debug(1, "Acking anyway\n");
                   /* XXX Maybe we should handle its ack to us, but then again, it's probably outdated anyway, and if
                      we have anything to send, we'll retransmit and get an ACK back anyway XXX */
                   send_command_immediate(iaxs[fr->callno], AST_FRAME_IAX, IAX_COMMAND_ACK, fr->ts, NULL, 0,fr->iseqno);
                }
             } else {
                /* Send a VNAK requesting retransmission */
                iax2_vnak(fr->callno);
             }
             ast_variables_destroy(ies.vars);
             ast_mutex_unlock(&iaxsl[fr->callno]);
             return 1;
          }
       } else {
          /* Increment unless it's an ACK or VNAK */
          if (((f.subclass.integer != IAX_COMMAND_ACK) &&
              (f.subclass.integer != IAX_COMMAND_INVAL) &&
              (f.subclass.integer != IAX_COMMAND_TXCNT) &&
              (f.subclass.integer != IAX_COMMAND_TXACC) &&
             (f.subclass.integer != IAX_COMMAND_VNAK)) ||
              (f.frametype != AST_FRAME_IAX))
             iaxs[fr->callno]->iseqno++;
       }
       /* Ensure text frames are NULL-terminated */
       if (f.frametype == AST_FRAME_TEXT && thread->buf[res - 1] != '\0') {
          if (res < thread->buf_size)
             thread->buf[res++] = '\0';
          else /* Trims one character from the text message, but that's better than overwriting the end of the buffer. */
             thread->buf[res - 1] = '\0';
       }
 
       /* Handle implicit ACKing unless this is an INVAL, and only if this is
          from the real peer, not the transfer peer */
       if (!ast_sockaddr_cmp(&addr, &iaxs[fr->callno]->addr) &&
           ((f.subclass.integer != IAX_COMMAND_INVAL) ||
            (f.frametype != AST_FRAME_IAX))) {
          unsigned char x;
          int call_to_destroy;
          /* First we have to qualify that the ACKed value is within our window */
          if (iaxs[fr->callno]->rseqno >= iaxs[fr->callno]->oseqno || (fr->iseqno >= iaxs[fr->callno]->rseqno && fr->iseqno < iaxs[fr->callno]->oseqno))
             x = fr->iseqno;
          else
             x = iaxs[fr->callno]->oseqno;
          if ((x != iaxs[fr->callno]->oseqno) || (iaxs[fr->callno]->oseqno == fr->iseqno)) {
             /* The acknowledgement is within our window.  Time to acknowledge everything
                that it says to */
             for (x=iaxs[fr->callno]->rseqno; x != fr->iseqno; x++) {
                /* Ack the packet with the given timestamp */
                if (iaxdebug)
                   ast_debug(1, "Cancelling transmission of packet %d\n", x);
                call_to_destroy = 0;
                AST_LIST_TRAVERSE(&frame_queue[fr->callno], cur, list) {
                   /* If it's our call, and our timestamp, mark -1 retries */
                   if (x == cur->oseqno) {
                      cur->retries = -1;
                      /* Destroy call if this is the end */
                      if (cur->final)
                         call_to_destroy = fr->callno;
                   }
                }
                if (call_to_destroy) {
                   if (iaxdebug)
                      ast_debug(1, "Really destroying %d, having been acked on final message\n", call_to_destroy);
                   ast_mutex_lock(&iaxsl[call_to_destroy]);
                   iax2_destroy(call_to_destroy);
                   ast_mutex_unlock(&iaxsl[call_to_destroy]);
                }
             }
             /* Note how much we've received acknowledgement for */
             if (iaxs[fr->callno])
                iaxs[fr->callno]->rseqno = fr->iseqno;
             else {
                /* Stop processing now */
                ast_variables_destroy(ies.vars);
                ast_mutex_unlock(&iaxsl[fr->callno]);
                return 1;
             }
          } else {
             ast_debug(1, "Received iseqno %d not within window %d->%d\n", fr->iseqno, iaxs[fr->callno]->rseqno, iaxs[fr->callno]->oseqno);
          }
       }
       if (ast_sockaddr_cmp(&addr, &iaxs[fr->callno]->addr) &&
          ((f.frametype != AST_FRAME_IAX) ||
           ((f.subclass.integer != IAX_COMMAND_TXACC) &&
            (f.subclass.integer != IAX_COMMAND_TXCNT)))) {
          /* Only messages we accept from a transfer host are TXACC and TXCNT */
          ast_variables_destroy(ies.vars);
          ast_mutex_unlock(&iaxsl[fr->callno]);
          return 1;
       }
 
       /* when we receive the first full frame for a new incoming channel,
          it is safe to start the PBX on the channel because we have now
          completed a 3-way handshake with the peer */
       if ((f.frametype == AST_FRAME_VOICE) ||
           (f.frametype == AST_FRAME_VIDEO) ||
           (f.frametype == AST_FRAME_IAX)) {
          if (ast_test_flag64(iaxs[fr->callno], IAX_DELAYPBXSTART)) {
             ast_clear_flag64(iaxs[fr->callno], IAX_DELAYPBXSTART);
             if (!ast_iax2_new(fr->callno, AST_STATE_RING,
                iaxs[fr->callno]->chosenformat, &iaxs[fr->callno]->rprefs, NULL, NULL,
                ast_test_flag(&iaxs[fr->callno]->state, IAX_STATE_AUTHENTICATED))) {
                ast_variables_destroy(ies.vars);
                ast_mutex_unlock(&iaxsl[fr->callno]);
                return 1;
             }
          }
 
          if (ies.vars) {
             struct ast_datastore *variablestore = NULL;
             struct ast_variable *var, *prev = NULL;
             AST_LIST_HEAD(, ast_var_t) *varlist;
 
             iax2_lock_owner(fr->callno);
             if (!iaxs[fr->callno]) {
                ast_variables_destroy(ies.vars);
                ast_mutex_unlock(&iaxsl[fr->callno]);
                return 1;
             }
             if ((c = iaxs[fr->callno]->owner)) {
                varlist = ast_calloc(1, sizeof(*varlist));
                variablestore = ast_datastore_alloc(&iax2_variable_datastore_info, NULL);
 
                if (variablestore && varlist) {
                   variablestore->data = varlist;
                   variablestore->inheritance = DATASTORE_INHERIT_FOREVER;
                   AST_LIST_HEAD_INIT(varlist);
                   ast_debug(1, "I can haz IAX vars?\n");
                   for (var = ies.vars; var; var = var->next) {
                      struct ast_var_t *newvar = ast_var_assign(var->name, var->value);
                      if (prev) {
                         ast_free(prev);
                      }
                      prev = var;
                      if (!newvar) {
                         /* Don't abort list traversal, as this would leave ies.vars in an inconsistent state. */
                         ast_log(LOG_ERROR, "Memory allocation error while processing IAX2 variables\n");
                      } else {
                         AST_LIST_INSERT_TAIL(varlist, newvar, entries);
                      }
                   }
                   if (prev) {
                      ast_free(prev);
                   }
                   ies.vars = NULL;
                   ast_channel_datastore_add(c, variablestore);
                } else {
                   ast_log(LOG_ERROR, "Memory allocation error while processing IAX2 variables\n");
                   if (variablestore) {
                      ast_datastore_free(variablestore);
                   }
                   if (varlist) {
                      ast_free(varlist);
                   }
                }
                ast_channel_unlock(c);
             } else {
                /* No channel yet, so transfer the variables directly over to the pvt,
                 * for later inheritance. */
                ast_debug(1, "No channel, so populating IAXVARs to the pvt, as an intermediate step.\n");
                for (var = ies.vars; var && var->next; var = var->next);
                if (var) {
                   var->next = iaxs[fr->callno]->iaxvars;
                   iaxs[fr->callno]->iaxvars = ies.vars;
                   ies.vars = NULL;
                }
             }
          }
 
          if (ies.vars) {
             ast_debug(1, "I have IAX variables, but they were not processed\n");
          }
       }
 
       /* once we receive our first IAX Full Frame that is not CallToken related, send all
        * queued signaling frames that were being held. */
       if ((f.frametype == AST_FRAME_IAX) && (f.subclass.integer != IAX_COMMAND_CALLTOKEN) && iaxs[fr->callno]->hold_signaling) {
          send_signaling(iaxs[fr->callno]);
       }
 
       if (f.frametype == AST_FRAME_VOICE) {
          if (ast_format_compatibility_format2bitfield(f.subclass.format) != iaxs[fr->callno]->voiceformat) {
                iaxs[fr->callno]->voiceformat = ast_format_compatibility_format2bitfield(f.subclass.format);
                ast_debug(1, "Ooh, voice format changed to '%s'\n", ast_format_get_name(f.subclass.format));
                if (iaxs[fr->callno]->owner) {
                   iax2_lock_owner(fr->callno);
                   if (iaxs[fr->callno]) {
                      if (iaxs[fr->callno]->owner) {
                         struct ast_format_cap *native = ast_format_cap_alloc(AST_FORMAT_CAP_FLAG_DEFAULT);
                         if (native) {
                            ast_format_cap_append(native, f.subclass.format, 0);
                            ast_channel_nativeformats_set(iaxs[fr->callno]->owner, native);
                            if (ast_channel_readformat(iaxs[fr->callno]->owner)) {
                               ast_set_read_format(iaxs[fr->callno]->owner, ast_channel_readformat(iaxs[fr->callno]->owner));
                            }
                            ao2_ref(native, -1);
                         }
                         ast_channel_unlock(iaxs[fr->callno]->owner);
                      }
                   } else {
                      ast_debug(1, "Neat, somebody took away the channel at a magical time but i found it!\n");
                      /* Free remote variables (if any) */
                      if (ies.vars) {
                         ast_variables_destroy(ies.vars);
                         ast_debug(1, "I can haz iaxvars, but they is no good.  :-(\n");
                         ies.vars = NULL;
                      }
                      ast_mutex_unlock(&iaxsl[fr->callno]);
                      return 1;
                   }
                }
          }
       }
       if (f.frametype == AST_FRAME_VIDEO) {
          if (ast_format_compatibility_format2bitfield(f.subclass.format) != iaxs[fr->callno]->videoformat) {
             ast_debug(1, "Ooh, video format changed to %s\n", ast_format_get_name(f.subclass.format));
             iaxs[fr->callno]->videoformat = ast_format_compatibility_format2bitfield(f.subclass.format);
          }
       }
       if (f.frametype == AST_FRAME_IAX) {
          AST_SCHED_DEL(sched, iaxs[fr->callno]->initid);
          /* Handle the IAX pseudo frame itself */
          if (iaxdebug)
             ast_debug(1, "IAX subclass %d received\n", f.subclass.integer);
 
                         /* Update last ts unless the frame's timestamp originated with us. */
          if (iaxs[fr->callno]->last < fr->ts &&
                             f.subclass.integer != IAX_COMMAND_ACK &&
                             f.subclass.integer != IAX_COMMAND_PONG &&
                             f.subclass.integer != IAX_COMMAND_LAGRP) {
             iaxs[fr->callno]->last = fr->ts;
             if (iaxdebug)
                ast_debug(1, "For call=%d, set last=%u\n", fr->callno, fr->ts);
          }
          iaxs[fr->callno]->last_iax_message = f.subclass.integer;
          if (!iaxs[fr->callno]->first_iax_message) {
             iaxs[fr->callno]->first_iax_message = f.subclass.integer;
          }
          switch(f.subclass.integer) {
          case IAX_COMMAND_ACK:
             /* Do nothing */
             break;
          case IAX_COMMAND_QUELCH:
             if (ast_test_flag(&iaxs[fr->callno]->state, IAX_STATE_STARTED)) {
                ast_set_flag64(iaxs[fr->callno], IAX_QUELCH);
                if (ies.musiconhold) {
                   const char *moh_suggest;
 
                   iax2_lock_owner(fr->callno);
                   if (!iaxs[fr->callno] || !iaxs[fr->callno]->owner) {
                      break;
                   }
 
                   /*
                    * We already hold the owner lock so we do not
                    * need to check iaxs[fr->callno] after it returns.
                    */
                   moh_suggest = iaxs[fr->callno]->mohsuggest;
                   iax2_queue_hold(fr->callno, moh_suggest);
                   ast_channel_unlock(iaxs[fr->callno]->owner);
                }
             }
             break;
          case IAX_COMMAND_UNQUELCH:
             if (ast_test_flag(&iaxs[fr->callno]->state, IAX_STATE_STARTED)) {
                iax2_lock_owner(fr->callno);
                if (!iaxs[fr->callno]) {
                   break;
                }
 
                ast_clear_flag64(iaxs[fr->callno], IAX_QUELCH);
                if (!iaxs[fr->callno]->owner) {
                   break;
                }
 
                /*
                 * We already hold the owner lock so we do not
                 * need to check iaxs[fr->callno] after it returns.
                 */
                iax2_queue_unhold(fr->callno);
                ast_channel_unlock(iaxs[fr->callno]->owner);
             }
             break;
          case IAX_COMMAND_TXACC:
             if (iaxs[fr->callno]->transferring == TRANSFER_BEGIN) {
                /* Ack the packet with the given timestamp */
                AST_LIST_TRAVERSE(&frame_queue[fr->callno], cur, list) {
                   /* Cancel any outstanding txcnt's */
                   if (cur->transfer) {
                      cur->retries = -1;
                   }
                }
                memset(&ied1, 0, sizeof(ied1));
                iax_ie_append_short(&ied1, IAX_IE_CALLNO, iaxs[fr->callno]->callno);
                send_command(iaxs[fr->callno], AST_FRAME_IAX, IAX_COMMAND_TXREADY, 0, ied1.buf, ied1.pos, -1);
                iaxs[fr->callno]->transferring = TRANSFER_READY;
             }
             break;
          case IAX_COMMAND_NEW:
             /* Ignore if it's already up */
             if (ast_test_flag(&iaxs[fr->callno]->state, IAX_STATE_STARTED | IAX_STATE_TBD))
                break;
             if (ies.provverpres && ies.serviceident && !(ast_sockaddr_isnull(&addr))) {
                ast_mutex_unlock(&iaxsl[fr->callno]);
                check_provisioning(&addr, fd, ies.serviceident, ies.provver);
                ast_mutex_lock(&iaxsl[fr->callno]);
                if (!iaxs[fr->callno]) {
                   break;
                }
             }
             /* If we're in trunk mode, do it now, and update the trunk number in our frame before continuing */
             if (ast_test_flag64(iaxs[fr->callno], IAX_TRUNK)) {
                int new_callno;
                if ((new_callno = make_trunk(fr->callno, 1)) != -1)
                   fr->callno = new_callno;
             }
             /* For security, always ack immediately */
             if (delayreject)
                send_command_immediate(iaxs[fr->callno], AST_FRAME_IAX, IAX_COMMAND_ACK, fr->ts, NULL, 0,fr->iseqno);
             if (check_access(fr->callno, &addr, &ies)) {
                /* They're not allowed on */
                auth_fail(fr->callno, IAX_COMMAND_REJECT);
                if (authdebug) {
                   ast_log(LOG_NOTICE, "Rejected connect attempt from %s, who was trying to reach '%s@%s'\n",
                         ast_sockaddr_stringify(&addr), iaxs[fr->callno]->exten, iaxs[fr->callno]->context);
                }
                break;
             }
             if (ast_strlen_zero(iaxs[fr->callno]->secret) && ast_test_flag64(iaxs[fr->callno], IAX_FORCE_ENCRYPT)) {
                auth_fail(fr->callno, IAX_COMMAND_REJECT);
                ast_log(LOG_WARNING, "Rejected connect attempt.  No secret present while force encrypt enabled.\n");
                break;
             }
             if (strcasecmp(iaxs[fr->callno]->exten, "TBD")) {
                const char *context, *exten, *cid_num;
 
                context = ast_strdupa(iaxs[fr->callno]->context);
                exten = ast_strdupa(iaxs[fr->callno]->exten);
                cid_num = ast_strdupa(iaxs[fr->callno]->cid_num);
 
                /* This might re-enter the IAX code and need the lock */
                ast_mutex_unlock(&iaxsl[fr->callno]);
                exists = ast_exists_extension(NULL, context, exten, 1, cid_num);
                ast_mutex_lock(&iaxsl[fr->callno]);
 
                if (!iaxs[fr->callno]) {
                   break;
                }
             } else
                exists = 0;
             /* Get OSP token if it does exist */
             save_osptoken(fr, &ies);
             if (ast_strlen_zero(iaxs[fr->callno]->secret) && ast_strlen_zero(iaxs[fr->callno]->inkeys)) {
                if (strcmp(iaxs[fr->callno]->exten, "TBD") && !exists) {
                   memset(&ied0, 0, sizeof(ied0));
                   iax_ie_append_str(&ied0, IAX_IE_CAUSE, "No such context/extension");
                   iax_ie_append_byte(&ied0, IAX_IE_CAUSECODE, AST_CAUSE_NO_ROUTE_DESTINATION);
                   send_command_final(iaxs[fr->callno], AST_FRAME_IAX, IAX_COMMAND_REJECT, 0, ied0.buf, ied0.pos, -1);
                   if (!iaxs[fr->callno]) {
                      break;
                   }
                   if (authdebug) {
                      ast_log(LOG_NOTICE, "Rejected connect attempt from %s, request '%s@%s' does not exist\n",
                            ast_sockaddr_stringify(&addr), iaxs[fr->callno]->exten, iaxs[fr->callno]->context);
                   }
                } else {
                   /* Select an appropriate format */
 
                   if(ast_test_flag64(iaxs[fr->callno], IAX_CODEC_NOPREFS)) {
                      if(ast_test_flag64(iaxs[fr->callno], IAX_CODEC_NOCAP)) {
                         using_prefs = "reqonly";
                      } else {
                         using_prefs = "disabled";
                      }
                      format = iaxs[fr->callno]->peerformat & iaxs[fr->callno]->capability;
                      memset(&pref, 0, sizeof(pref));
                      strcpy(caller_pref_buf, "disabled");
                      strcpy(host_pref_buf, "disabled");
                   } else {
                      struct ast_format *tmpfmt;
                      using_prefs = "mine";
                      /* If the information elements are in here... use them */
                      if (ies.codec_prefs)
                         iax2_codec_pref_convert(&iaxs[fr->callno]->rprefs, ies.codec_prefs, 32, 0);
                      if (iax2_codec_pref_index(&iaxs[fr->callno]->rprefs, 0, &tmpfmt)) {
                         /* If we are codec_first_choice we let the caller have the 1st shot at picking the codec.*/
                         if (ast_test_flag64(iaxs[fr->callno], IAX_CODEC_USER_FIRST)) {
                            pref = iaxs[fr->callno]->rprefs;
                            using_prefs = "caller";
                         } else {
                            pref = iaxs[fr->callno]->prefs;
                         }
                      } else
                         pref = iaxs[fr->callno]->prefs;
 
                      format = iax2_codec_choose(&pref, iaxs[fr->callno]->capability & iaxs[fr->callno]->peercapability);
                      iax2_codec_pref_string(&iaxs[fr->callno]->rprefs, caller_pref_buf, sizeof(caller_pref_buf) - 1);
                      iax2_codec_pref_string(&iaxs[fr->callno]->prefs, host_pref_buf, sizeof(host_pref_buf) - 1);
                   }
                   if (!format) {
                      if(!ast_test_flag64(iaxs[fr->callno], IAX_CODEC_NOCAP))
                         format = iaxs[fr->callno]->peercapability & iaxs[fr->callno]->capability;
                      if (!format) {
                         memset(&ied0, 0, sizeof(ied0));
                         iax_ie_append_str(&ied0, IAX_IE_CAUSE, "Unable to negotiate codec");
                         iax_ie_append_byte(&ied0, IAX_IE_CAUSECODE, AST_CAUSE_BEARERCAPABILITY_NOTAVAIL);
                         send_command_final(iaxs[fr->callno], AST_FRAME_IAX, IAX_COMMAND_REJECT, 0, ied0.buf, ied0.pos, -1);
                         if (!iaxs[fr->callno]) {
                            break;
                         }
                         if (authdebug) {
                            struct ast_str *peer_buf = ast_str_alloca(AST_FORMAT_CAP_NAMES_LEN);
                            struct ast_str *cap_buf = ast_str_alloca(AST_FORMAT_CAP_NAMES_LEN);
                            struct ast_str *peer_form_buf = ast_str_alloca(AST_FORMAT_CAP_NAMES_LEN);
 
                            if (ast_test_flag64(iaxs[fr->callno], IAX_CODEC_NOCAP)) {
                               ast_log(LOG_NOTICE, "Rejected connect attempt from %s, requested '%s' incompatible with our capability '%s'.\n",
                                  ast_sockaddr_stringify(&addr),
                                  iax2_getformatname_multiple(iaxs[fr->callno]->peerformat, &peer_form_buf),
                                  iax2_getformatname_multiple(iaxs[fr->callno]->capability, &cap_buf));
                            } else {
                               ast_log(LOG_NOTICE, "Rejected connect attempt from %s, requested/capability '%s'/'%s' incompatible with our capability '%s'.\n",
                                  ast_sockaddr_stringify(&addr),
                                  iax2_getformatname_multiple(iaxs[fr->callno]->peerformat, &peer_form_buf),
                                  iax2_getformatname_multiple(iaxs[fr->callno]->peercapability, &peer_buf),
                                  iax2_getformatname_multiple(iaxs[fr->callno]->capability, &cap_buf));
                            }
                         }
                      } else {
                         /* Pick one... */
                         if(ast_test_flag64(iaxs[fr->callno], IAX_CODEC_NOCAP)) {
                            if(!(iaxs[fr->callno]->peerformat & iaxs[fr->callno]->capability))
                               format = 0;
                         } else {
                            if(ast_test_flag64(iaxs[fr->callno], IAX_CODEC_NOPREFS)) {
                               using_prefs = ast_test_flag64(iaxs[fr->callno], IAX_CODEC_NOCAP) ? "reqonly" : "disabled";
                               memset(&pref, 0, sizeof(pref));
                               format = iax2_format_compatibility_best(iaxs[fr->callno]->peercapability & iaxs[fr->callno]->capability);
                               strcpy(caller_pref_buf,"disabled");
                               strcpy(host_pref_buf,"disabled");
                            } else {
                               struct ast_format *tmpfmt;
                               using_prefs = "mine";
                               if (iax2_codec_pref_index(&iaxs[fr->callno]->rprefs, 0, &tmpfmt)) {
                                  /* Do the opposite of what we tried above. */
                                  if (ast_test_flag64(iaxs[fr->callno], IAX_CODEC_USER_FIRST)) {
                                     pref = iaxs[fr->callno]->prefs;
                                  } else {
                                     pref = iaxs[fr->callno]->rprefs;
                                     using_prefs = "caller";
                                  }
                                  format = iax2_codec_choose(&pref, iaxs[fr->callno]->peercapability & iaxs[fr->callno]->capability);
                               } else /* if no codec_prefs IE do it the old way */
                                  format = iax2_format_compatibility_best(iaxs[fr->callno]->peercapability & iaxs[fr->callno]->capability);
                            }
                         }
 
                         if (!format) {
                            struct ast_str *peer_buf = ast_str_alloca(AST_FORMAT_CAP_NAMES_LEN);
                            struct ast_str *cap_buf = ast_str_alloca(AST_FORMAT_CAP_NAMES_LEN);
                            struct ast_str *peer_form_buf = ast_str_alloca(AST_FORMAT_CAP_NAMES_LEN);
 
                            memset(&ied0, 0, sizeof(ied0));
                            iax_ie_append_str(&ied0, IAX_IE_CAUSE, "Unable to negotiate codec");
                            iax_ie_append_byte(&ied0, IAX_IE_CAUSECODE, AST_CAUSE_BEARERCAPABILITY_NOTAVAIL);
                            ast_log(LOG_ERROR, "No best format in '%s'???\n", iax2_getformatname_multiple(iaxs[fr->callno]->peercapability & iaxs[fr->callno]->capability, &cap_buf));
                            send_command_final(iaxs[fr->callno], AST_FRAME_IAX, IAX_COMMAND_REJECT, 0, ied0.buf, ied0.pos, -1);
                            if (!iaxs[fr->callno]) {
                               break;
                            }
                            if (authdebug) {
                               ast_log(LOG_NOTICE, "Rejected connect attempt from %s, requested/capability '%s'/'%s' incompatible with our capability '%s'.\n",
                                  ast_sockaddr_stringify(&addr),
                                  iax2_getformatname_multiple(iaxs[fr->callno]->peerformat, &peer_form_buf),
                                  iax2_getformatname_multiple(iaxs[fr->callno]->peercapability, &peer_buf),
                                  iax2_getformatname_multiple(iaxs[fr->callno]->capability, &cap_buf));
                            }
                            ast_set_flag64(iaxs[fr->callno], IAX_ALREADYGONE);
                            break;
                         }
                      }
                   }
                   if (format) {
                      /* No authentication required, let them in */
                      memset(&ied1, 0, sizeof(ied1));
                      iax_ie_append_int(&ied1, IAX_IE_FORMAT, format);
                      iax_ie_append_versioned_uint64(&ied1, IAX_IE_FORMAT2, 0, format);
                      send_command(iaxs[fr->callno], AST_FRAME_IAX, IAX_COMMAND_ACCEPT, 0, ied1.buf, ied1.pos, -1);
                      if (strcmp(iaxs[fr->callno]->exten, "TBD")) {
                         ast_set_flag(&iaxs[fr->callno]->state, IAX_STATE_STARTED);
                         ast_verb(3, "Accepting UNAUTHENTICATED call from %s:\n"
                                     "%srequested format = %s,\n"
                                     "%srequested prefs = %s,\n"
                                     "%sactual format = %s,\n"
                                     "%shost prefs = %s,\n"
                                     "%spriority = %s\n",
                                     ast_sockaddr_stringify(&addr),
                                     VERBOSE_PREFIX_4,
                                     iax2_getformatname(iaxs[fr->callno]->peerformat),
                                     VERBOSE_PREFIX_4,
                                     caller_pref_buf,
                                     VERBOSE_PREFIX_4,
                                     iax2_getformatname(format),
                                     VERBOSE_PREFIX_4,
                                     host_pref_buf,
                                     VERBOSE_PREFIX_4,
                                     using_prefs);
 
                         iaxs[fr->callno]->chosenformat = format;
 
                         /* Since this is a new call, we should go ahead and set the callid for it. */
                         iax_pvt_callid_new(fr->callno);
                         ast_set_flag64(iaxs[fr->callno], IAX_DELAYPBXSTART);
                      } else {
                         ast_set_flag(&iaxs[fr->callno]->state, IAX_STATE_TBD);
                         /* If this is a TBD call, we're ready but now what...  */
                         ast_verb(3, "Accepted unauthenticated TBD call from %s\n", ast_sockaddr_stringify(&addr));
                      }
                   }
                }
                break;
             }
             if (iaxs[fr->callno]->authmethods & (IAX_AUTH_MD5 | IAX_AUTH_RSA))
                merge_encryption(iaxs[fr->callno], ies.encmethods);
             else
                iaxs[fr->callno]->encmethods = 0;
             if (!authenticate_request(fr->callno) && iaxs[fr->callno])
                ast_set_flag(&iaxs[fr->callno]->state, IAX_STATE_AUTHENTICATED);
             break;
          case IAX_COMMAND_DPREQ:
             /* Request status in the dialplan */
             if (ast_test_flag(&iaxs[fr->callno]->state, IAX_STATE_TBD) &&
                !ast_test_flag(&iaxs[fr->callno]->state, IAX_STATE_STARTED) && ies.called_number) {
                if (iaxcompat) {
                   /* Spawn a thread for the lookup */
                   spawn_dp_lookup(fr->callno, iaxs[fr->callno]->context, ies.called_number, iaxs[fr->callno]->cid_num);
                } else {
                   /* Just look it up */
                   dp_lookup(fr->callno, iaxs[fr->callno]->context, ies.called_number, iaxs[fr->callno]->cid_num, 1);
                }
             }
             break;
          case IAX_COMMAND_HANGUP:
             ast_set_flag64(iaxs[fr->callno], IAX_ALREADYGONE);
             ast_debug(1, "Immediately destroying %d, having received hangup\n", fr->callno);
             /* Set hangup cause according to remote and hangupsource */
             if (iaxs[fr->callno]->owner) {
                set_hangup_source_and_cause(fr->callno, ies.causecode);
                if (!iaxs[fr->callno]) {
                   break;
                }
             }
 
             /* Send ack immediately, before we destroy */
             send_command_immediate(iaxs[fr->callno], AST_FRAME_IAX, IAX_COMMAND_ACK, fr->ts, NULL, 0,fr->iseqno);
             iax2_destroy(fr->callno);
             break;
          case IAX_COMMAND_REJECT:
             /* Set hangup cause according to remote and hangup source */
             if (iaxs[fr->callno]->owner) {
                set_hangup_source_and_cause(fr->callno, ies.causecode);
                if (!iaxs[fr->callno]) {
                   break;
                }
             }
 
             if (!ast_test_flag64(iaxs[fr->callno], IAX_PROVISION)) {
                if (iaxs[fr->callno]->owner && authdebug)
                   ast_log(LOG_WARNING, "Call rejected by %s: %s\n",
                      ast_sockaddr_stringify(&addr),
                      ies.cause ? ies.cause : "<Unknown>");
                ast_debug(1, "Immediately destroying %d, having received reject\n",
                   fr->callno);
             }
             /* Send ack immediately, before we destroy */
             send_command_immediate(iaxs[fr->callno], AST_FRAME_IAX, IAX_COMMAND_ACK,
                          fr->ts, NULL, 0, fr->iseqno);
             if (!ast_test_flag64(iaxs[fr->callno], IAX_PROVISION))
                iaxs[fr->callno]->error = EPERM;
             iax2_destroy(fr->callno);
             break;
          case IAX_COMMAND_TRANSFER:
          {
             iax2_lock_owner(fr->callno);
             if (!iaxs[fr->callno]) {
                /* Initiating call went away before we could transfer. */
                break;
             }
             if (iaxs[fr->callno]->owner) {
                struct ast_channel *owner = iaxs[fr->callno]->owner;
                char *context = ast_strdupa(iaxs[fr->callno]->context);
 
                ast_channel_ref(owner);
                ast_channel_unlock(owner);
                ast_mutex_unlock(&iaxsl[fr->callno]);
 
                if (ast_bridge_transfer_blind(1, owner, ies.called_number,
                         context, NULL, NULL) != AST_BRIDGE_TRANSFER_SUCCESS) {
                   ast_log(LOG_WARNING, "Blind transfer of '%s' to '%s@%s' failed\n",
                      ast_channel_name(owner), ies.called_number,
                      context);
                }
 
                ast_channel_unref(owner);
                ast_mutex_lock(&iaxsl[fr->callno]);
             }
 
             break;
          }
          case IAX_COMMAND_ACCEPT:
             /* Ignore if call is already up or needs authentication or is a TBD */
             if (ast_test_flag(&iaxs[fr->callno]->state, IAX_STATE_STARTED | IAX_STATE_TBD | IAX_STATE_AUTHENTICATED))
                break;
             if (ast_test_flag64(iaxs[fr->callno], IAX_PROVISION)) {
                /* Send ack immediately, before we destroy */
                send_command_immediate(iaxs[fr->callno], AST_FRAME_IAX, IAX_COMMAND_ACK, fr->ts, NULL, 0,fr->iseqno);
                iax2_destroy(fr->callno);
                break;
             }
             if (ies.format) {
                iaxs[fr->callno]->peerformat = ies.format;
             } else {
                if (iaxs[fr->callno]->owner)
                   iaxs[fr->callno]->peerformat = iax2_format_compatibility_cap2bitfield(ast_channel_nativeformats(iaxs[fr->callno]->owner));
                else
                   iaxs[fr->callno]->peerformat = iaxs[fr->callno]->capability;
             }
             ast_verb(3, "Call accepted by %s (format %s)\n", ast_sockaddr_stringify(&addr),
                   iax2_getformatname(iaxs[fr->callno]->peerformat));
             if (!(iaxs[fr->callno]->peerformat & iaxs[fr->callno]->capability)) {
                memset(&ied0, 0, sizeof(ied0));
                iax_ie_append_str(&ied0, IAX_IE_CAUSE, "Unable to negotiate codec");
                iax_ie_append_byte(&ied0, IAX_IE_CAUSECODE, AST_CAUSE_BEARERCAPABILITY_NOTAVAIL);
                send_command_final(iaxs[fr->callno], AST_FRAME_IAX, IAX_COMMAND_REJECT, 0, ied0.buf, ied0.pos, -1);
                if (!iaxs[fr->callno]) {
                   break;
                }
                if (authdebug) {
                   struct ast_str *peer_buf = ast_str_alloca(AST_FORMAT_CAP_NAMES_LEN);
                   struct ast_str *cap_buf = ast_str_alloca(AST_FORMAT_CAP_NAMES_LEN);
 
                   ast_log(LOG_NOTICE, "Rejected call to %s, format %s incompatible with our capability %s.\n",
                      ast_sockaddr_stringify(&addr),
                      iax2_getformatname_multiple(iaxs[fr->callno]->peerformat, &peer_buf),
                      iax2_getformatname_multiple(iaxs[fr->callno]->capability, &cap_buf));
                }
             } else {
                struct ast_format_cap *native = ast_format_cap_alloc(AST_FORMAT_CAP_FLAG_DEFAULT);
 
                ast_set_flag(&iaxs[fr->callno]->state, IAX_STATE_STARTED);
                iax2_lock_owner(fr->callno);
                if (iaxs[fr->callno] && iaxs[fr->callno]->owner && native) {
                   struct ast_str *cap_buf = ast_str_alloca(AST_FORMAT_CAP_NAMES_LEN);
 
                   /* Switch us to use a compatible format */
                   iax2_codec_pref_best_bitfield2cap(
                      iaxs[fr->callno]->peerformat, &iaxs[fr->callno]->rprefs,
                      native);
                   ast_channel_nativeformats_set(iaxs[fr->callno]->owner, native);
                   ast_verb(3, "Format for call is %s\n", ast_format_cap_get_names(ast_channel_nativeformats(iaxs[fr->callno]->owner), &cap_buf));
 
                   /* Setup read/write formats properly. */
                   if (ast_channel_writeformat(iaxs[fr->callno]->owner))
                      ast_set_write_format(iaxs[fr->callno]->owner, ast_channel_writeformat(iaxs[fr->callno]->owner));
                   if (ast_channel_readformat(iaxs[fr->callno]->owner))
                      ast_set_read_format(iaxs[fr->callno]->owner, ast_channel_readformat(iaxs[fr->callno]->owner));
                   ast_channel_unlock(iaxs[fr->callno]->owner);
                }
 
                ao2_cleanup(native);
             }
             if (iaxs[fr->callno]) {
                AST_LIST_LOCK(&dpcache);
                AST_LIST_TRAVERSE(&iaxs[fr->callno]->dpentries, dp, peer_list)
                   if (!(dp->flags & CACHE_FLAG_TRANSMITTED))
                      iax2_dprequest(dp, fr->callno);
                AST_LIST_UNLOCK(&dpcache);
             }
             break;
          case IAX_COMMAND_POKE:
             /* Send back a pong packet with the original timestamp */
             send_command_final(iaxs[fr->callno], AST_FRAME_IAX, IAX_COMMAND_PONG, fr->ts, NULL, 0, -1);
             break;
          case IAX_COMMAND_PING:
          {
             struct iax_ie_data pingied;
             construct_rr(iaxs[fr->callno], &pingied);
             /* Send back a pong packet with the original timestamp */
             send_command(iaxs[fr->callno], AST_FRAME_IAX, IAX_COMMAND_PONG, fr->ts, pingied.buf, pingied.pos, -1);
          }
             break;
          case IAX_COMMAND_PONG:
             /* Calculate ping time */
             iaxs[fr->callno]->pingtime =  calc_timestamp(iaxs[fr->callno], 0, &f) - fr->ts;
             /* save RR info */
             save_rr(fr, &ies);
 
             /* Good time to write jb stats for this call */
             log_jitterstats(fr->callno);
 
             if (iaxs[fr->callno]->peerpoke) {
                RAII_VAR(struct ast_json *, blob, NULL, ast_json_unref);
                peer = iaxs[fr->callno]->peerpoke;
                if ((peer->lastms < 0)  || (peer->historicms > peer->maxms)) {
                   if (iaxs[fr->callno]->pingtime <= peer->maxms) {
                      ast_log(LOG_NOTICE, "Peer '%s' is now REACHABLE! Time: %u\n", peer->name, iaxs[fr->callno]->pingtime);
                      ast_endpoint_set_state(peer->endpoint, AST_ENDPOINT_ONLINE);
                      blob = ast_json_pack("{s: s, s: I}",
                         "peer_status", "Reachable",
                         "time", (ast_json_int_t)iaxs[fr->callno]->pingtime);
                      ast_devstate_changed(AST_DEVICE_NOT_INUSE, AST_DEVSTATE_CACHABLE, "IAX2/%s", peer->name); /* Activate notification */
                   }
                } else if ((peer->historicms > 0) && (peer->historicms <= peer->maxms)) {
                   if (iaxs[fr->callno]->pingtime > peer->maxms) {
                      ast_log(LOG_NOTICE, "Peer '%s' is now TOO LAGGED (%u ms)!\n", peer->name, iaxs[fr->callno]->pingtime);
                      ast_endpoint_set_state(peer->endpoint, AST_ENDPOINT_ONLINE);
                      blob = ast_json_pack("{s: s, s: I}",
                         "peer_status", "Lagged",
                         "time", (ast_json_int_t)iaxs[fr->callno]->pingtime);
                      ast_devstate_changed(AST_DEVICE_UNAVAILABLE, AST_DEVSTATE_CACHABLE, "IAX2/%s", peer->name); /* Activate notification */
                   }
                }
                ast_endpoint_blob_publish(peer->endpoint, ast_endpoint_state_type(), blob);
                peer->lastms = iaxs[fr->callno]->pingtime;
                if (peer->smoothing && (peer->lastms > -1))
                   peer->historicms = (iaxs[fr->callno]->pingtime + peer->historicms) / 2;
                else if (peer->smoothing && peer->lastms < 0)
                   peer->historicms = (0 + peer->historicms) / 2;
                else
                   peer->historicms = iaxs[fr->callno]->pingtime;
 
                /* Remove scheduled iax2_poke_noanswer */
                if (peer->pokeexpire > -1) {
                   if (!AST_SCHED_DEL(sched, peer->pokeexpire)) {
                      peer_unref(peer);
                      peer->pokeexpire = -1;
                   }
                }
                /* Schedule the next cycle */
                if ((peer->lastms < 0)  || (peer->historicms > peer->maxms))
                   peer->pokeexpire = iax2_sched_add(sched, peer->pokefreqnotok, iax2_poke_peer_s, peer_ref(peer));
                else
                   peer->pokeexpire = iax2_sched_add(sched, peer->pokefreqok, iax2_poke_peer_s, peer_ref(peer));
                if (peer->pokeexpire == -1)
                   peer_unref(peer);
                /* and finally send the ack */
                send_command_immediate(iaxs[fr->callno], AST_FRAME_IAX, IAX_COMMAND_ACK, fr->ts, NULL, 0,fr->iseqno);
                /* And wrap up the qualify call */
                iax2_destroy(fr->callno);
                peer->callno = 0;
                ast_debug(1, "Peer %s: got pong, lastms %d, historicms %d, maxms %d\n", peer->name, peer->lastms, peer->historicms, peer->maxms);
             }
             break;
          case IAX_COMMAND_LAGRQ:
          case IAX_COMMAND_LAGRP:
             f.src = "LAGRQ";
             f.mallocd = 0;
             f.offset = 0;
             f.samples = 0;
             iax_frame_wrap(fr, &f);
             if (f.subclass.integer == IAX_COMMAND_LAGRQ) {
                /* Received a LAGRQ - echo back a LAGRP */
                fr->af.subclass.integer = IAX_COMMAND_LAGRP;
                iax2_send(iaxs[fr->callno], &fr->af, fr->ts, -1, 0, 0, 0);
             } else {
                /* Received LAGRP in response to our LAGRQ */
                unsigned int ts;
                /* This is a reply we've been given, actually measure the difference */
                ts = calc_timestamp(iaxs[fr->callno], 0, &fr->af);
                iaxs[fr->callno]->lag = ts - fr->ts;
                if (iaxdebug)
                   ast_debug(1, "Peer %s lag measured as %dms\n",
                      ast_sockaddr_stringify(&addr), iaxs[fr->callno]->lag);
             }
             break;
          case IAX_COMMAND_AUTHREQ:
             if (ast_test_flag(&iaxs[fr->callno]->state, IAX_STATE_STARTED | IAX_STATE_TBD)) {
                ast_log(LOG_WARNING, "Call on %s is already up, can't start on it\n", iaxs[fr->callno]->owner ? ast_channel_name(iaxs[fr->callno]->owner) : "<Unknown>");
                break;
             }
             if (authenticate_reply(iaxs[fr->callno], &iaxs[fr->callno]->addr, &ies, iaxs[fr->callno]->secret, iaxs[fr->callno]->outkey)) {
                struct ast_frame hangup_fr = { .frametype = AST_FRAME_CONTROL,
                         .subclass.integer = AST_CONTROL_HANGUP,
                };
                ast_log(LOG_WARNING,
                   "I don't know how to authenticate %s to %s\n",
                   ies.username ? ies.username : "<unknown>", ast_sockaddr_stringify(&addr));
                iax2_queue_frame(fr->callno, &hangup_fr);
             }
             break;
          case IAX_COMMAND_AUTHREP:
             /* For security, always ack immediately */
             if (delayreject)
                send_command_immediate(iaxs[fr->callno], AST_FRAME_IAX, IAX_COMMAND_ACK, fr->ts, NULL, 0,fr->iseqno);
             /* Ignore once we've started */
             if (ast_test_flag(&iaxs[fr->callno]->state, IAX_STATE_STARTED | IAX_STATE_TBD)) {
                ast_log(LOG_WARNING, "Call on %s is already up, can't start on it\n", iaxs[fr->callno]->owner ? ast_channel_name(iaxs[fr->callno]->owner) : "<Unknown>");
                break;
             }
             if (authenticate_verify(iaxs[fr->callno], &ies)) {
                if (authdebug)
                   ast_log(LOG_NOTICE, "Host %s failed to authenticate as %s\n", ast_sockaddr_stringify(&addr),
                         iaxs[fr->callno]->username);
                memset(&ied0, 0, sizeof(ied0));
                auth_fail(fr->callno, IAX_COMMAND_REJECT);
                break;
             }
             if (strcasecmp(iaxs[fr->callno]->exten, "TBD")) {
                /* This might re-enter the IAX code and need the lock */
                exists = ast_exists_extension(NULL, iaxs[fr->callno]->context, iaxs[fr->callno]->exten, 1, iaxs[fr->callno]->cid_num);
             } else
                exists = 0;
             if (strcmp(iaxs[fr->callno]->exten, "TBD") && !exists) {
                if (authdebug)
                   ast_log(LOG_NOTICE, "Rejected connect attempt from %s, request '%s@%s' does not exist\n",
                         ast_sockaddr_stringify(&addr),
                         iaxs[fr->callno]->exten,
                         iaxs[fr->callno]->context);
                memset(&ied0, 0, sizeof(ied0));
                iax_ie_append_str(&ied0, IAX_IE_CAUSE, "No such context/extension");
                iax_ie_append_byte(&ied0, IAX_IE_CAUSECODE, AST_CAUSE_NO_ROUTE_DESTINATION);
                send_command_final(iaxs[fr->callno], AST_FRAME_IAX, IAX_COMMAND_REJECT, 0, ied0.buf, ied0.pos, -1);
                if (!iaxs[fr->callno]) {
                   break;
                }
             } else {
                /* Select an appropriate format */
                if(ast_test_flag64(iaxs[fr->callno], IAX_CODEC_NOPREFS)) {
                   if(ast_test_flag64(iaxs[fr->callno], IAX_CODEC_NOCAP)) {
                      using_prefs = "reqonly";
                   } else {
                      using_prefs = "disabled";
                   }
                   format = iaxs[fr->callno]->peerformat & iaxs[fr->callno]->capability;
                   memset(&pref, 0, sizeof(pref));
                   strcpy(caller_pref_buf, "disabled");
                   strcpy(host_pref_buf, "disabled");
                } else {
                   struct ast_format *tmpfmt;
                   using_prefs = "mine";
                   if (ies.codec_prefs)
                      iax2_codec_pref_convert(&iaxs[fr->callno]->rprefs, ies.codec_prefs, 32, 0);
                   if (iax2_codec_pref_index(&iaxs[fr->callno]->rprefs, 0, &tmpfmt)) {
                      if (ast_test_flag64(iaxs[fr->callno], IAX_CODEC_USER_FIRST)) {
                         pref = iaxs[fr->callno]->rprefs;
                         using_prefs = "caller";
                      } else {
                         pref = iaxs[fr->callno]->prefs;
                      }
                   } else /* if no codec_prefs IE do it the old way */
                      pref = iaxs[fr->callno]->prefs;
                   format = iax2_codec_choose(&pref, iaxs[fr->callno]->capability & iaxs[fr->callno]->peercapability);
                   iax2_codec_pref_string(&iaxs[fr->callno]->rprefs, caller_pref_buf, sizeof(caller_pref_buf) - 1);
                   iax2_codec_pref_string(&iaxs[fr->callno]->prefs, host_pref_buf, sizeof(host_pref_buf) - 1);
                }
                if (!format) {
                   struct ast_str *cap_buf = ast_str_alloca(AST_FORMAT_CAP_NAMES_LEN);
                   struct ast_str *peer_buf = ast_str_alloca(AST_FORMAT_CAP_NAMES_LEN);
                   struct ast_str *peer_form_buf = ast_str_alloca(AST_FORMAT_CAP_NAMES_LEN);
 
                   if(!ast_test_flag64(iaxs[fr->callno], IAX_CODEC_NOCAP)) {
                      ast_debug(1, "We don't do requested format %s, falling back to peer capability '%s'\n",
                         iax2_getformatname(iaxs[fr->callno]->peerformat),
                         iax2_getformatname_multiple(iaxs[fr->callno]->peercapability, &peer_buf));
                      format = iaxs[fr->callno]->peercapability & iaxs[fr->callno]->capability;
                   }
                   if (!format) {
                      if (authdebug) {
                         if (ast_test_flag64(iaxs[fr->callno], IAX_CODEC_NOCAP)) {
                            ast_log(LOG_NOTICE, "Rejected connect attempt from %s, requested '%s' incompatible with our capability '%s'.\n",
                                  ast_sockaddr_stringify(&addr),
                               iax2_getformatname_multiple(iaxs[fr->callno]->peerformat, &peer_form_buf),
                               iax2_getformatname_multiple(iaxs[fr->callno]->capability, &cap_buf));
                         } else {
                            ast_log(LOG_NOTICE, "Rejected connect attempt from %s, requested/capability '%s'/'%s' incompatible with our capability '%s'.\n",
                               ast_sockaddr_stringify(&addr),
                               iax2_getformatname_multiple(iaxs[fr->callno]->peerformat, &peer_form_buf),
                               iax2_getformatname_multiple(iaxs[fr->callno]->peercapability, &peer_buf),
                               iax2_getformatname_multiple(iaxs[fr->callno]->capability, &cap_buf));
                         }
                      }
                      memset(&ied0, 0, sizeof(ied0));
                      iax_ie_append_str(&ied0, IAX_IE_CAUSE, "Unable to negotiate codec");
                      iax_ie_append_byte(&ied0, IAX_IE_CAUSECODE, AST_CAUSE_BEARERCAPABILITY_NOTAVAIL);
                      send_command_final(iaxs[fr->callno], AST_FRAME_IAX, IAX_COMMAND_REJECT, 0, ied0.buf, ied0.pos, -1);
                      if (!iaxs[fr->callno]) {
                         break;
                      }
                   } else {
                      /* Pick one... */
                      if(ast_test_flag64(iaxs[fr->callno], IAX_CODEC_NOCAP)) {
                         if(!(iaxs[fr->callno]->peerformat & iaxs[fr->callno]->capability))
                            format = 0;
                      } else {
                         if(ast_test_flag64(iaxs[fr->callno], IAX_CODEC_NOPREFS)) {
                            using_prefs = ast_test_flag64(iaxs[fr->callno], IAX_CODEC_NOCAP) ? "reqonly" : "disabled";
                            memset(&pref, 0, sizeof(pref));
                            format = ast_test_flag64(iaxs[fr->callno], IAX_CODEC_NOCAP)
                               ? iaxs[fr->callno]->peerformat
                               : iax2_format_compatibility_best(iaxs[fr->callno]->peercapability & iaxs[fr->callno]->capability);
                            strcpy(caller_pref_buf,"disabled");
                            strcpy(host_pref_buf,"disabled");
                         } else {
                            struct ast_format *tmpfmt;
                            using_prefs = "mine";
                            if (iax2_codec_pref_index(&iaxs[fr->callno]->rprefs, 0, &tmpfmt)) {
                               /* Do the opposite of what we tried above. */
                               if (ast_test_flag64(iaxs[fr->callno], IAX_CODEC_USER_FIRST)) {
                                  pref = iaxs[fr->callno]->prefs;
                               } else {
                                  pref = iaxs[fr->callno]->rprefs;
                                  using_prefs = "caller";
                               }
                               format = iax2_codec_choose(&pref, iaxs[fr->callno]->peercapability & iaxs[fr->callno]->capability);
                            } else /* if no codec_prefs IE do it the old way */
                               format = iax2_format_compatibility_best(iaxs[fr->callno]->peercapability & iaxs[fr->callno]->capability);
                         }
                      }
                      if (!format) {
                         struct ast_str *cap_buf = ast_str_alloca(AST_FORMAT_CAP_NAMES_LEN);
                         struct ast_str *peer_buf = ast_str_alloca(AST_FORMAT_CAP_NAMES_LEN);
                         struct ast_str *peer_form_buf = ast_str_alloca(AST_FORMAT_CAP_NAMES_LEN);
 
                         ast_log(LOG_ERROR, "No best format in %s???\n",
                            iax2_getformatname_multiple(iaxs[fr->callno]->peercapability & iaxs[fr->callno]->capability, &cap_buf));
                         if (authdebug) {
                            if (ast_test_flag64(iaxs[fr->callno], IAX_CODEC_NOCAP)) {
                               ast_log(LOG_NOTICE, "Rejected connect attempt from %s, requested '%s' incompatible with our capability '%s'.\n",
                                  ast_sockaddr_stringify(&addr),
                                  iax2_getformatname_multiple(iaxs[fr->callno]->peerformat, &peer_form_buf),
                                  iax2_getformatname_multiple(iaxs[fr->callno]->capability, &cap_buf));
                            } else {
                               ast_log(LOG_NOTICE, "Rejected connect attempt from %s, requested/capability '%s'/'%s' incompatible with our capability '%s'.\n",
                                  ast_sockaddr_stringify(&addr),
                                  iax2_getformatname_multiple(iaxs[fr->callno]->peerformat, &peer_form_buf),
                                  iax2_getformatname_multiple(iaxs[fr->callno]->peercapability, &peer_buf),
                                  iax2_getformatname_multiple(iaxs[fr->callno]->capability, &cap_buf));
                            }
                         }
                         memset(&ied0, 0, sizeof(ied0));
                         iax_ie_append_str(&ied0, IAX_IE_CAUSE, "Unable to negotiate codec");
                         iax_ie_append_byte(&ied0, IAX_IE_CAUSECODE, AST_CAUSE_BEARERCAPABILITY_NOTAVAIL);
                         send_command_final(iaxs[fr->callno], AST_FRAME_IAX, IAX_COMMAND_REJECT, 0, ied0.buf, ied0.pos, -1);
                         if (!iaxs[fr->callno]) {
                            break;
                         }
                      }
                   }
                }
                if (format) {
                   /* Authentication received */
                   memset(&ied1, 0, sizeof(ied1));
                   iax_ie_append_int(&ied1, IAX_IE_FORMAT, format);
                   iax_ie_append_versioned_uint64(&ied1, IAX_IE_FORMAT2, 0, format);
                   send_command(iaxs[fr->callno], AST_FRAME_IAX, IAX_COMMAND_ACCEPT, 0, ied1.buf, ied1.pos, -1);
                   if (strcmp(iaxs[fr->callno]->exten, "TBD")) {
                      ast_set_flag(&iaxs[fr->callno]->state, IAX_STATE_STARTED);
                      ast_verb(3, "Accepting AUTHENTICATED call from %s:\n"
                                  "%srequested format = %s,\n"
                                  "%srequested prefs = %s,\n"
                                  "%sactual format = %s,\n"
                                  "%shost prefs = %s,\n"
                                  "%spriority = %s\n",
                                  ast_sockaddr_stringify(&addr),
                                  VERBOSE_PREFIX_4,
                                  iax2_getformatname(iaxs[fr->callno]->peerformat),
                                  VERBOSE_PREFIX_4,
                                  caller_pref_buf,
                                  VERBOSE_PREFIX_4,
                                  iax2_getformatname(format),
                                  VERBOSE_PREFIX_4,
                                  host_pref_buf,
                                  VERBOSE_PREFIX_4,
                                  using_prefs);
 
                      ast_set_flag(&iaxs[fr->callno]->state, IAX_STATE_STARTED);
                      c = ast_iax2_new(fr->callno, AST_STATE_RING, format,
                         &iaxs[fr->callno]->rprefs, NULL, NULL, 1);
                      if (!c) {
                         iax2_destroy(fr->callno);
                      } else if (ies.vars) {
                         struct ast_datastore *variablestore;
                         struct ast_variable *var, *prev = NULL;
                         AST_LIST_HEAD(, ast_var_t) *varlist;
                         varlist = ast_calloc(1, sizeof(*varlist));
                         variablestore = ast_datastore_alloc(&iax2_variable_datastore_info, NULL);
                         if (variablestore && varlist) {
                            variablestore->data = varlist;
                            variablestore->inheritance = DATASTORE_INHERIT_FOREVER;
                            AST_LIST_HEAD_INIT(varlist);
                            ast_debug(1, "I can haz IAX vars? w00t\n");
                            for (var = ies.vars; var; var = var->next) {
                               struct ast_var_t *newvar = ast_var_assign(var->name, var->value);
                               if (prev)
                                  ast_free(prev);
                               prev = var;
                               if (!newvar) {
                                  /* Don't abort list traversal, as this would leave ies.vars in an inconsistent state. */
                                  ast_log(LOG_ERROR, "Memory allocation error while processing IAX2 variables\n");
                               } else {
                                  AST_LIST_INSERT_TAIL(varlist, newvar, entries);
                               }
                            }
                            if (prev)
                               ast_free(prev);
                            ies.vars = NULL;
                            ast_channel_datastore_add(c, variablestore);
                         } else {
                            ast_log(LOG_ERROR, "Memory allocation error while processing IAX2 variables\n");
                            if (variablestore)
                               ast_datastore_free(variablestore);
                            if (varlist)
                               ast_free(varlist);
                         }
                      }
                   } else {
                      ast_set_flag(&iaxs[fr->callno]->state, IAX_STATE_TBD);
                      /* If this is a TBD call, we're ready but now what...  */
                      ast_verb(3, "Accepted AUTHENTICATED TBD call from %s\n", ast_sockaddr_stringify(&addr));
                      if (ast_test_flag64(iaxs[fr->callno], IAX_IMMEDIATE)) {
                         goto immediatedial;
                      }
                   }
                }
             }
             break;
          case IAX_COMMAND_DIAL:
 immediatedial:
             if (ast_test_flag(&iaxs[fr->callno]->state, IAX_STATE_TBD)) {
                ast_clear_flag(&iaxs[fr->callno]->state, IAX_STATE_TBD);
                ast_string_field_set(iaxs[fr->callno], exten, ies.called_number ? ies.called_number : "s");
                if (!ast_exists_extension(NULL, iaxs[fr->callno]->context, iaxs[fr->callno]->exten, 1, iaxs[fr->callno]->cid_num)) {
                   if (authdebug)
                      ast_log(LOG_NOTICE, "Rejected dial attempt from %s, request '%s@%s' does not exist\n",
                            ast_sockaddr_stringify(&addr),
                            iaxs[fr->callno]->exten,
                            iaxs[fr->callno]->context);
                   memset(&ied0, 0, sizeof(ied0));
                   iax_ie_append_str(&ied0, IAX_IE_CAUSE, "No such context/extension");
                   iax_ie_append_byte(&ied0, IAX_IE_CAUSECODE, AST_CAUSE_NO_ROUTE_DESTINATION);
                   send_command_final(iaxs[fr->callno], AST_FRAME_IAX, IAX_COMMAND_REJECT, 0, ied0.buf, ied0.pos, -1);
                   if (!iaxs[fr->callno]) {
                      break;
                   }
                } else {
                   struct ast_str *cap_buf = ast_str_alloca(AST_FORMAT_CAP_NAMES_LEN);
                   ast_set_flag(&iaxs[fr->callno]->state, IAX_STATE_STARTED);
                   ast_verb(3, "Accepting DIAL from %s, formats = %s\n",
                         ast_sockaddr_stringify(&addr),
                         iax2_getformatname_multiple(iaxs[fr->callno]->peerformat, &cap_buf));
                   ast_set_flag(&iaxs[fr->callno]->state, IAX_STATE_STARTED);
                   send_command(iaxs[fr->callno], AST_FRAME_CONTROL, AST_CONTROL_PROGRESS, 0, NULL, 0, -1);
                   c = ast_iax2_new(fr->callno, AST_STATE_RING,
                      iaxs[fr->callno]->peerformat, &iaxs[fr->callno]->rprefs,
                      NULL, NULL, 1);
                   if (!c) {
                      iax2_destroy(fr->callno);
                   } else if (ies.vars) {
                      struct ast_datastore *variablestore;
                      struct ast_variable *var, *prev = NULL;
                      AST_LIST_HEAD(, ast_var_t) *varlist;
                      varlist = ast_calloc(1, sizeof(*varlist));
                      variablestore = ast_datastore_alloc(&iax2_variable_datastore_info, NULL);
                      ast_debug(1, "I can haz IAX vars? w00t\n");
                      if (variablestore && varlist) {
                         variablestore->data = varlist;
                         variablestore->inheritance = DATASTORE_INHERIT_FOREVER;
                         AST_LIST_HEAD_INIT(varlist);
                         for (var = ies.vars; var; var = var->next) {
                            struct ast_var_t *newvar = ast_var_assign(var->name, var->value);
                            if (prev)
                               ast_free(prev);
                            prev = var;
                            if (!newvar) {
                               /* Don't abort list traversal, as this would leave ies.vars in an inconsistent state. */
                               ast_log(LOG_ERROR, "Memory allocation error while processing IAX2 variables\n");
                            } else {
                               AST_LIST_INSERT_TAIL(varlist, newvar, entries);
                            }
                         }
                         if (prev)
                            ast_free(prev);
                         ies.vars = NULL;
                         ast_channel_datastore_add(c, variablestore);
                      } else {
                         ast_log(LOG_ERROR, "Memory allocation error while processing IAX2 variables\n");
                         if (variablestore)
                            ast_datastore_free(variablestore);
                         if (varlist)
                            ast_free(varlist);
                      }
                   }
                }
             }
             break;
          case IAX_COMMAND_INVAL:
             iaxs[fr->callno]->error = ENOTCONN;
             ast_debug(1, "Immediately destroying %d, having received INVAL\n", fr->callno);
             iax2_destroy(fr->callno);
             ast_debug(1, "Destroying call %d\n", fr->callno);
             break;
          case IAX_COMMAND_VNAK:
             ast_debug(1, "Received VNAK: resending outstanding frames\n");
             /* Force retransmission */
             vnak_retransmit(fr->callno, fr->iseqno);
             break;
          case IAX_COMMAND_REGREQ:
          case IAX_COMMAND_REGREL:
             /* For security, always ack immediately */
             if (delayreject)
                send_command_immediate(iaxs[fr->callno], AST_FRAME_IAX, IAX_COMMAND_ACK, fr->ts, NULL, 0,fr->iseqno);
             if (register_verify(fr->callno, &addr, &ies)) {
                if (!iaxs[fr->callno]) {
                   break;
                }
                /* Send delayed failure */
                auth_fail(fr->callno, IAX_COMMAND_REGREJ);
                break;
             }
             if (!iaxs[fr->callno]) {
                break;
             }
             if ((ast_strlen_zero(iaxs[fr->callno]->secret) && ast_strlen_zero(iaxs[fr->callno]->inkeys)) ||
                   ast_test_flag(&iaxs[fr->callno]->state, IAX_STATE_AUTHENTICATED)) {
 
                if (f.subclass.integer == IAX_COMMAND_REGREL) {
                   ast_sockaddr_setnull(&addr);
                }
                if (update_registry(&addr, fr->callno, ies.devicetype, fd, ies.refresh)) {
                   ast_log(LOG_WARNING, "Registry error\n");
                }
                if (!iaxs[fr->callno]) {
                   break;
                }
                if (ies.provverpres && ies.serviceident && !(ast_sockaddr_isnull(&addr))) {
                   ast_mutex_unlock(&iaxsl[fr->callno]);
                   check_provisioning(&addr, fd, ies.serviceident, ies.provver);
                   ast_mutex_lock(&iaxsl[fr->callno]);
                }
                break;
             }
             registry_authrequest(fr->callno);
             break;
          case IAX_COMMAND_REGACK:
             if (iax2_ack_registry(&ies, &addr, fr->callno)) {
                ast_log(LOG_WARNING, "Registration failure\n");
             }
             /* Send ack immediately, before we destroy */
             send_command_immediate(iaxs[fr->callno], AST_FRAME_IAX, IAX_COMMAND_ACK, fr->ts, NULL, 0,fr->iseqno);
             iax2_destroy(fr->callno);
             break;
          case IAX_COMMAND_REGREJ:
             if (iaxs[fr->callno]->reg) {
                if (authdebug) {
                   ast_log(LOG_NOTICE, "Registration of '%s' rejected: '%s' from: '%s'\n",
                         iaxs[fr->callno]->reg->username, ies.cause ? ies.cause : "<unknown>",
                         ast_sockaddr_stringify(&addr));
                }
                iax2_publish_registry(iaxs[fr->callno]->reg->username, ast_sockaddr_stringify(&addr), "Rejected", S_OR(ies.cause, "<unknown>"));
                iaxs[fr->callno]->reg->regstate = REG_STATE_REJECTED;
             }
             /* Send ack immediately, before we destroy */
             send_command_immediate(iaxs[fr->callno], AST_FRAME_IAX, IAX_COMMAND_ACK, fr->ts, NULL, 0,fr->iseqno);
             iax2_destroy(fr->callno);
             break;
          case IAX_COMMAND_REGAUTH:
             /* Authentication request */
             if (registry_rerequest(&ies, fr->callno, &addr)) {
                memset(&ied0, 0, sizeof(ied0));
                iax_ie_append_str(&ied0, IAX_IE_CAUSE, "No authority found");
                iax_ie_append_byte(&ied0, IAX_IE_CAUSECODE, AST_CAUSE_FACILITY_NOT_SUBSCRIBED);
                send_command_final(iaxs[fr->callno], AST_FRAME_IAX, IAX_COMMAND_REJECT, 0, ied0.buf, ied0.pos, -1);
             }
             break;
          case IAX_COMMAND_TXREJ:
             while (iaxs[fr->callno]
                && iaxs[fr->callno]->bridgecallno
                && ast_mutex_trylock(&iaxsl[iaxs[fr->callno]->bridgecallno])) {
                DEADLOCK_AVOIDANCE(&iaxsl[fr->callno]);
             }
             if (!iaxs[fr->callno]) {
                break;
             }
 
             iaxs[fr->callno]->transferring = TRANSFER_NONE;
             ast_verb(3, "Channel '%s' unable to transfer\n", iaxs[fr->callno]->owner ? ast_channel_name(iaxs[fr->callno]->owner) : "<Unknown>");
             memset(&iaxs[fr->callno]->transfer, 0, sizeof(iaxs[fr->callno]->transfer));
 
             if (!iaxs[fr->callno]->bridgecallno) {
                break;
             }
 
             if (iaxs[iaxs[fr->callno]->bridgecallno]
                && iaxs[iaxs[fr->callno]->bridgecallno]->transferring) {
                iaxs[iaxs[fr->callno]->bridgecallno]->transferring = TRANSFER_NONE;
                send_command(iaxs[iaxs[fr->callno]->bridgecallno], AST_FRAME_IAX, IAX_COMMAND_TXREJ, 0, NULL, 0, -1);
             }
             ast_mutex_unlock(&iaxsl[iaxs[fr->callno]->bridgecallno]);
             break;
          case IAX_COMMAND_TXREADY:
             while (iaxs[fr->callno]
                && iaxs[fr->callno]->bridgecallno
                && ast_mutex_trylock(&iaxsl[iaxs[fr->callno]->bridgecallno])) {
                DEADLOCK_AVOIDANCE(&iaxsl[fr->callno]);
             }
             if (!iaxs[fr->callno]) {
                break;
             }
 
             if (iaxs[fr->callno]->transferring == TRANSFER_BEGIN) {
                iaxs[fr->callno]->transferring = TRANSFER_READY;
             } else if (iaxs[fr->callno]->transferring == TRANSFER_MBEGIN) {
                iaxs[fr->callno]->transferring = TRANSFER_MREADY;
             } else {
                if (iaxs[fr->callno]->bridgecallno) {
                   ast_mutex_unlock(&iaxsl[iaxs[fr->callno]->bridgecallno]);
                }
                break;
             }
             ast_verb(3, "Channel '%s' ready to transfer\n", iaxs[fr->callno]->owner ? ast_channel_name(iaxs[fr->callno]->owner) : "<Unknown>");
 
             if (!iaxs[fr->callno]->bridgecallno) {
                break;
             }
 
             if (!iaxs[iaxs[fr->callno]->bridgecallno]
                || (iaxs[iaxs[fr->callno]->bridgecallno]->transferring != TRANSFER_READY
                   && iaxs[iaxs[fr->callno]->bridgecallno]->transferring != TRANSFER_MREADY)) {
                ast_mutex_unlock(&iaxsl[iaxs[fr->callno]->bridgecallno]);
                break;
             }
 
             /* Both sides are ready */
 
             /* XXX what isn't checked here is that both sides match transfer types. */
 
             if (iaxs[fr->callno]->transferring == TRANSFER_MREADY) {
                ast_verb(3, "Attempting media bridge of %s and %s\n", iaxs[fr->callno]->owner ? ast_channel_name(iaxs[fr->callno]->owner) : "<Unknown>",
                      iaxs[iaxs[fr->callno]->bridgecallno]->owner ? ast_channel_name(iaxs[iaxs[fr->callno]->bridgecallno]->owner) : "<Unknown>");
 
                iaxs[iaxs[fr->callno]->bridgecallno]->transferring = TRANSFER_MEDIA;
                iaxs[fr->callno]->transferring = TRANSFER_MEDIA;
 
                memset(&ied0, 0, sizeof(ied0));
                memset(&ied1, 0, sizeof(ied1));
                iax_ie_append_short(&ied0, IAX_IE_CALLNO, iaxs[iaxs[fr->callno]->bridgecallno]->peercallno);
                iax_ie_append_short(&ied1, IAX_IE_CALLNO, iaxs[fr->callno]->peercallno);
                send_command(iaxs[fr->callno], AST_FRAME_IAX, IAX_COMMAND_TXMEDIA, 0, ied0.buf, ied0.pos, -1);
                send_command(iaxs[iaxs[fr->callno]->bridgecallno], AST_FRAME_IAX, IAX_COMMAND_TXMEDIA, 0, ied1.buf, ied1.pos, -1);
             } else {
                ast_verb(3, "Releasing %s and %s\n", iaxs[fr->callno]->owner ? ast_channel_name(iaxs[fr->callno]->owner) : "<Unknown>",
                      iaxs[iaxs[fr->callno]->bridgecallno]->owner ? ast_channel_name(iaxs[iaxs[fr->callno]->bridgecallno]->owner) : "<Unknown>");
 
                iaxs[iaxs[fr->callno]->bridgecallno]->transferring = TRANSFER_RELEASED;
                iaxs[fr->callno]->transferring = TRANSFER_RELEASED;
                ast_set_flag64(iaxs[iaxs[fr->callno]->bridgecallno], IAX_ALREADYGONE);
                ast_set_flag64(iaxs[fr->callno], IAX_ALREADYGONE);
 
                /* Stop doing lag & ping requests */
                stop_stuff(fr->callno);
                stop_stuff(iaxs[fr->callno]->bridgecallno);
 
                memset(&ied0, 0, sizeof(ied0));
                memset(&ied1, 0, sizeof(ied1));
                iax_ie_append_short(&ied0, IAX_IE_CALLNO, iaxs[iaxs[fr->callno]->bridgecallno]->peercallno);
                iax_ie_append_short(&ied1, IAX_IE_CALLNO, iaxs[fr->callno]->peercallno);
                send_command(iaxs[fr->callno], AST_FRAME_IAX, IAX_COMMAND_TXREL, 0, ied0.buf, ied0.pos, -1);
                send_command(iaxs[iaxs[fr->callno]->bridgecallno], AST_FRAME_IAX, IAX_COMMAND_TXREL, 0, ied1.buf, ied1.pos, -1);
             }
             ast_mutex_unlock(&iaxsl[iaxs[fr->callno]->bridgecallno]);
             break;
          case IAX_COMMAND_TXREQ:
             try_transfer(iaxs[fr->callno], &ies);
             break;
          case IAX_COMMAND_TXCNT:
             if (iaxs[fr->callno]->transferring)
                send_command_transfer(iaxs[fr->callno], AST_FRAME_IAX, IAX_COMMAND_TXACC, 0, NULL, 0);
             break;
          case IAX_COMMAND_TXREL:
             /* Send ack immediately, rather than waiting until we've changed addresses */
             send_command_immediate(iaxs[fr->callno], AST_FRAME_IAX, IAX_COMMAND_ACK, fr->ts, NULL, 0,fr->iseqno);
             complete_transfer(fr->callno, &ies);
             stop_stuff(fr->callno); /* for attended transfer to work with libiax */
             break;
          case IAX_COMMAND_TXMEDIA:
             if (iaxs[fr->callno]->transferring == TRANSFER_READY) {
                AST_LIST_TRAVERSE(&frame_queue[fr->callno], cur, list) {
                   /* Cancel any outstanding frames and start anew */
                   if (cur->transfer) {
                      cur->retries = -1;
                   }
                }
                /* Start sending our media to the transfer address, but otherwise leave the call as-is */
                iaxs[fr->callno]->transferring = TRANSFER_MEDIAPASS;
             }
             break;
          case IAX_COMMAND_RTKEY:
             if (!IAX_CALLENCRYPTED(iaxs[fr->callno])) {
                ast_log(LOG_WARNING,
                   "we've been told to rotate our encryption key, "
                   "but this isn't an encrypted call. bad things will happen.\n"
                );
                break;
             }
 
             IAX_DEBUGDIGEST("Receiving", ies.challenge);
 
             ast_aes_set_decrypt_key((unsigned char *) ies.challenge, &iaxs[fr->callno]->dcx);
             break;
          case IAX_COMMAND_DPREP:
             complete_dpreply(iaxs[fr->callno], &ies);
             break;
          case IAX_COMMAND_UNSUPPORT:
             ast_log(LOG_NOTICE, "Peer did not understand our iax command '%d'\n", ies.iax_unknown);
             break;
          case IAX_COMMAND_FWDOWNL:
             /* Firmware download */
             if (!ast_test_flag64(&globalflags, IAX_ALLOWFWDOWNLOAD)) {
                send_command_final(iaxs[fr->callno], AST_FRAME_IAX, IAX_COMMAND_UNSUPPORT, 0, NULL, 0, -1);
                break;
             }
             memset(&ied0, 0, sizeof(ied0));
             res = iax_firmware_append(&ied0, ies.devicetype, ies.fwdesc);
             if (res < 0)
                send_command_final(iaxs[fr->callno], AST_FRAME_IAX, IAX_COMMAND_REJECT, 0, ied0.buf, ied0.pos, -1);
             else if (res > 0)
                send_command_final(iaxs[fr->callno], AST_FRAME_IAX, IAX_COMMAND_FWDATA, 0, ied0.buf, ied0.pos, -1);
             else
                send_command(iaxs[fr->callno], AST_FRAME_IAX, IAX_COMMAND_FWDATA, 0, ied0.buf, ied0.pos, -1);
             break;
          case IAX_COMMAND_CALLTOKEN:
          {
             struct iax_frame *cur;
             /* find last sent frame */
             if ((cur = AST_LIST_LAST(&frame_queue[fr->callno])) && ies.calltoken && ies.calltokendata) {
                resend_with_token(fr->callno, cur, (char *) ies.calltokendata);
             }
             break;
          }
          default:
             ast_debug(1, "Unknown IAX command %d on %d/%d\n", f.subclass.integer, fr->callno, iaxs[fr->callno]->peercallno);
             memset(&ied0, 0, sizeof(ied0));
             iax_ie_append_byte(&ied0, IAX_IE_IAX_UNKNOWN, f.subclass.integer);
             send_command(iaxs[fr->callno], AST_FRAME_IAX, IAX_COMMAND_UNSUPPORT, 0, ied0.buf, ied0.pos, -1);
          }
          /* Free remote variables (if any) */
          if (ies.vars) {
             ast_variables_destroy(ies.vars);
             ast_debug(1, "I can haz IAX vars, but they is no good :-(\n");
             ies.vars = NULL;
          }
 
          /* Don't actually pass these frames along */
          if ((f.subclass.integer != IAX_COMMAND_ACK) &&
             (f.subclass.integer != IAX_COMMAND_TXCNT) &&
             (f.subclass.integer != IAX_COMMAND_TXACC) &&
             (f.subclass.integer != IAX_COMMAND_INVAL) &&
             (f.subclass.integer != IAX_COMMAND_VNAK)) {
             if (iaxs[fr->callno] && iaxs[fr->callno]->aseqno != iaxs[fr->callno]->iseqno) {
                send_command_immediate(iaxs[fr->callno], AST_FRAME_IAX, IAX_COMMAND_ACK, fr->ts, NULL, 0,fr->iseqno);
             }
          }
          ast_mutex_unlock(&iaxsl[fr->callno]);
          return 1;
       }
       /* Unless this is an ACK or INVAL frame, ack it */
       if (iaxs[fr->callno] && iaxs[fr->callno]->aseqno != iaxs[fr->callno]->iseqno)
          send_command_immediate(iaxs[fr->callno], AST_FRAME_IAX, IAX_COMMAND_ACK, fr->ts, NULL, 0,fr->iseqno);
    } else if (minivid) {
       f.frametype = AST_FRAME_VIDEO;
       if (iaxs[fr->callno]->videoformat > 0) {
          if (ntohs(vh->ts) & 0x8000LL) {
             f.subclass.frame_ending = 1;
          }
          f.subclass.format = ast_format_compatibility_bitfield2format(iaxs[fr->callno]->videoformat);
       } else {
          ast_log(LOG_WARNING, "Received mini frame before first full video frame\n");
          iax2_vnak(fr->callno);
          ast_variables_destroy(ies.vars);
          ast_mutex_unlock(&iaxsl[fr->callno]);
          return 1;
       }
       f.datalen = res - sizeof(*vh);
       if (f.datalen)
          f.data.ptr = thread->buf + sizeof(*vh);
       else
          f.data.ptr = NULL;
 #ifdef IAXTESTS
       if (test_resync) {
          fr->ts = (iaxs[fr->callno]->last & 0xFFFF8000L) | ((ntohs(vh->ts) + test_resync) & 0x7fff);
       } else
 #endif /* IAXTESTS */
          fr->ts = (iaxs[fr->callno]->last & 0xFFFF8000L) | (ntohs(vh->ts) & 0x7fff);
    } else {
       /* A mini frame */
       f.frametype = AST_FRAME_VOICE;
       if (iaxs[fr->callno]->voiceformat > 0)
          f.subclass.format = ast_format_compatibility_bitfield2format(iaxs[fr->callno]->voiceformat);
       else {
          ast_debug(1, "Received mini frame before first full voice frame\n");
          iax2_vnak(fr->callno);
          ast_variables_destroy(ies.vars);
          ast_mutex_unlock(&iaxsl[fr->callno]);
          return 1;
       }
       f.datalen = res - sizeof(struct ast_iax2_mini_hdr);
       if (f.datalen < 0) {
          ast_log(LOG_WARNING, "Datalen < 0?\n");
          ast_variables_destroy(ies.vars);
          ast_mutex_unlock(&iaxsl[fr->callno]);
          return 1;
       }
       if (f.datalen)
          f.data.ptr = thread->buf + sizeof(*mh);
       else
          f.data.ptr = NULL;
 #ifdef IAXTESTS
       if (test_resync) {
          fr->ts = (iaxs[fr->callno]->last & 0xFFFF0000L) | ((ntohs(mh->ts) + test_resync) & 0xffff);
       } else
 #endif /* IAXTESTS */
       fr->ts = (iaxs[fr->callno]->last & 0xFFFF0000L) | ntohs(mh->ts);
       /* FIXME? Surely right here would be the right place to undo timestamp wraparound? */
    }
 
    /* Don't pass any packets until we're started */
    if (!iaxs[fr->callno]
       || !ast_test_flag(&iaxs[fr->callno]->state, IAX_STATE_STARTED)) {
       ast_variables_destroy(ies.vars);
       ast_mutex_unlock(&iaxsl[fr->callno]);
       return 1;
    }
 
    if (f.frametype == AST_FRAME_CONTROL) {
       if (!iax2_is_control_frame_allowed(f.subclass.integer)) {
          /* Control frame not allowed to come from the wire. */
          ast_debug(2, "Callno %d: Blocked receiving control frame %d.\n",
             fr->callno, f.subclass.integer);
          ast_variables_destroy(ies.vars);
          ast_mutex_unlock(&iaxsl[fr->callno]);
          return 1;
       }
       if (f.subclass.integer == AST_CONTROL_CONNECTED_LINE
          || f.subclass.integer == AST_CONTROL_REDIRECTING) {
          if (iaxs[fr->callno]
             && !ast_test_flag64(iaxs[fr->callno], IAX_RECVCONNECTEDLINE)) {
             /* We are not configured to allow receiving these updates. */
             ast_debug(2, "Callno %d: Config blocked receiving control frame %d.\n",
                fr->callno, f.subclass.integer);
             ast_variables_destroy(ies.vars);
             ast_mutex_unlock(&iaxsl[fr->callno]);
             return 1;
          }
       }
 
       iax2_lock_owner(fr->callno);
       if (iaxs[fr->callno] && iaxs[fr->callno]->owner) {
          if (f.subclass.integer == AST_CONTROL_BUSY) {
             ast_channel_hangupcause_set(iaxs[fr->callno]->owner, AST_CAUSE_BUSY);
          } else if (f.subclass.integer == AST_CONTROL_CONGESTION) {
             ast_channel_hangupcause_set(iaxs[fr->callno]->owner, AST_CAUSE_CONGESTION);
          }
          ast_channel_unlock(iaxs[fr->callno]->owner);
       }
    }
 
    if (f.frametype == AST_FRAME_CONTROL
       && f.subclass.integer == AST_CONTROL_CONNECTED_LINE
       && iaxs[fr->callno]) {
       struct ast_party_connected_line connected;
 
       /*
        * Process a received connected line update.
        *
        * Initialize defaults.
        */
       ast_party_connected_line_init(&connected);
       connected.id.number.presentation = iaxs[fr->callno]->calling_pres;
       connected.id.name.presentation = iaxs[fr->callno]->calling_pres;
 
       if (!ast_connected_line_parse_data(f.data.ptr, f.datalen, &connected)) {
          ast_string_field_set(iaxs[fr->callno], cid_num, connected.id.number.str);
          ast_string_field_set(iaxs[fr->callno], cid_name, connected.id.name.str);
          iaxs[fr->callno]->calling_pres = ast_party_id_presentation(&connected.id);
 
          iax2_lock_owner(fr->callno);
          if (iaxs[fr->callno] && iaxs[fr->callno]->owner) {
             ast_set_callerid(iaxs[fr->callno]->owner,
                S_COR(connected.id.number.valid, connected.id.number.str, ""),
                S_COR(connected.id.name.valid, connected.id.name.str, ""),
                NULL);
             ast_channel_caller(iaxs[fr->callno]->owner)->id.number.presentation = connected.id.number.presentation;
             ast_channel_caller(iaxs[fr->callno]->owner)->id.name.presentation = connected.id.name.presentation;
             ast_channel_unlock(iaxs[fr->callno]->owner);
          }
       }
       ast_party_connected_line_free(&connected);
    }
 
    /* Common things */
    f.src = "IAX2";
    f.mallocd = 0;
    f.offset = 0;
    f.len = 0;
    if (f.datalen && (f.frametype == AST_FRAME_VOICE)) {
       f.samples = ast_codec_samples_count(&f);
       /* We need to byteswap incoming slinear samples from network byte order */
       if (ast_format_cmp(f.subclass.format, ast_format_slin) == AST_FORMAT_CMP_EQUAL)
          ast_frame_byteswap_be(&f);
    } else
       f.samples = 0;
    iax_frame_wrap(fr, &f);
 
    /* If this is our most recent packet, use it as our basis for timestamping */
    if (iaxs[fr->callno] && iaxs[fr->callno]->last < fr->ts) {
       /*iaxs[fr->callno]->last = fr->ts; (do it afterwards cos schedule/forward_delivery needs the last ts too)*/
       fr->outoforder = 0;
    } else {
       if (iaxdebug && iaxs[fr->callno]) {
          ast_debug(1, "Received out of order packet... (type=%u, subclass %d, ts = %u, last = %u)\n", f.frametype, f.subclass.integer, fr->ts, iaxs[fr->callno]->last);
       }
       fr->outoforder = 1;
    }
    fr->cacheable = ((f.frametype == AST_FRAME_VOICE) || (f.frametype == AST_FRAME_VIDEO));
    if (iaxs[fr->callno]) {
       duped_fr = iaxfrdup2(fr);
       if (duped_fr) {
          schedule_delivery(duped_fr, updatehistory, 0, &fr->ts);
       }
    }
    if (iaxs[fr->callno] && iaxs[fr->callno]->last < fr->ts) {
       iaxs[fr->callno]->last = fr->ts;
 #if 1
       if (iaxdebug)
          ast_debug(1, "For call=%d, set last=%u\n", fr->callno, fr->ts);
 #endif
    }
 
    /* Always run again */
    ast_variables_destroy(ies.vars);
    ast_mutex_unlock(&iaxsl[fr->callno]);
    return 1;
 }

◆ socket_process_meta()

static int socket_process_meta	(	int	packet_len,
		struct ast_iax2_meta_hdr *	meta,
		struct ast_sockaddr *	addr,
		int	sockfd,
		struct iax_frame *	fr
	)

static

Definition at line 9851 of file chan_iax2.c.

References ast_codec_samples_count(), ast_format_compatibility_bitfield2format(), AST_FRAME_VOICE, ast_log, ast_mutex_unlock, ast_sockaddr_stringify(), ast_test_flag, ast_tvnow(), ast_tvzero(), iax_frame::callno, ast_iax2_mini_hdr::callno, ast_iax2_meta_trunk_entry::callno, ast_iax2_meta_hdr::cmddata, ast_frame::data, ast_iax2_meta_hdr::data, ast_iax2_meta_trunk_hdr::data, ast_frame::datalen, find_callno_locked(), find_tpeer(), fix_peerts(), ast_frame_subclass::format, ast_frame::frametype, iax2_vnak(), IAX_FLAG_FULL, iax_frame_wrap(), IAX_META_TRUNK, IAX_META_TRUNK_MINI, IAX_META_TRUNK_SUPERMINI, IAX_STATE_STARTED, iaxfrdup2(), chan_iax2_pvt::last, ast_iax2_meta_trunk_entry::len, ast_iax2_meta_trunk_mini::len, len(), iax2_trunk_peer::lock, LOG_WARNING, ast_frame::mallocd, ast_iax2_meta_hdr::metacmd, ast_iax2_meta_trunk_mini::mini, NEW_PREVENT, NULL, ast_frame::offset, iax_frame::outoforder, ast_frame::ptr, iax2_trunk_peer::rxtrunktime, ast_frame::samples, schedule_delivery(), ast_frame::src, chan_iax2_pvt::state, ast_frame::subclass, iax2_trunk_peer::trunkact, iax_frame::ts, ast_iax2_mini_hdr::ts, ast_iax2_meta_trunk_hdr::ts, and chan_iax2_pvt::voiceformat.

Referenced by socket_process_helper().

 {
    unsigned char metatype;
    struct ast_iax2_meta_trunk_mini *mtm;
    struct ast_iax2_meta_trunk_hdr *mth;
    struct ast_iax2_meta_trunk_entry *mte;
    struct iax2_trunk_peer *tpeer;
    unsigned int ts;
    void *ptr;
    struct timeval rxtrunktime;
    struct ast_frame f = { 0, };
 
    if (packet_len < sizeof(*meta)) {
       ast_log(LOG_WARNING, "Rejecting packet from '%s' that is flagged as a meta frame but is too short\n",
             ast_sockaddr_stringify(addr));
       return 1;
    }
 
    if (meta->metacmd != IAX_META_TRUNK)
       return 1;
 
    if (packet_len < (sizeof(*meta) + sizeof(*mth))) {
       ast_log(LOG_WARNING, "midget meta trunk packet received (%d of %d min)\n", packet_len,
          (int) (sizeof(*meta) + sizeof(*mth)));
       return 1;
    }
    mth = (struct ast_iax2_meta_trunk_hdr *)(meta->data);
    ts = ntohl(mth->ts);
    metatype = meta->cmddata;
    packet_len -= (sizeof(*meta) + sizeof(*mth));
    ptr = mth->data;
    tpeer = find_tpeer(addr, sockfd);
    if (!tpeer) {
       ast_log(LOG_WARNING, "Unable to accept trunked packet from '%s': No matching peer\n",
             ast_sockaddr_stringify(addr));
       return 1;
    }
    tpeer->trunkact = ast_tvnow();
    if (!ts || ast_tvzero(tpeer->rxtrunktime))
       tpeer->rxtrunktime = tpeer->trunkact;
    rxtrunktime = tpeer->rxtrunktime;
    ast_mutex_unlock(&tpeer->lock);
    while (packet_len >= sizeof(*mte)) {
       /* Process channels */
       unsigned short callno, trunked_ts, len;
 
       if (metatype == IAX_META_TRUNK_MINI) {
          mtm = (struct ast_iax2_meta_trunk_mini *) ptr;
          ptr += sizeof(*mtm);
          packet_len -= sizeof(*mtm);
          len = ntohs(mtm->len);
          callno = ntohs(mtm->mini.callno);
          trunked_ts = ntohs(mtm->mini.ts);
       } else if (metatype == IAX_META_TRUNK_SUPERMINI) {
          mte = (struct ast_iax2_meta_trunk_entry *)ptr;
          ptr += sizeof(*mte);
          packet_len -= sizeof(*mte);
          len = ntohs(mte->len);
          callno = ntohs(mte->callno);
          trunked_ts = 0;
       } else {
          ast_log(LOG_WARNING, "Unknown meta trunk cmd from '%s': dropping\n", ast_sockaddr_stringify(addr));
          break;
       }
       /* Stop if we don't have enough data */
       if (len > packet_len)
          break;
       fr->callno = find_callno_locked(callno & ~IAX_FLAG_FULL, 0, addr, NEW_PREVENT, sockfd, 0);
       if (!fr->callno)
          continue;
 
       /* If it's a valid call, deliver the contents.  If not, we
          drop it, since we don't have a scallno to use for an INVAL */
       /* Process as a mini frame */
       memset(&f, 0, sizeof(f));
       f.frametype = AST_FRAME_VOICE;
       if (!iaxs[fr->callno]) {
          /* drop it */
       } else if (iaxs[fr->callno]->voiceformat == 0) {
          ast_log(LOG_WARNING, "Received trunked frame before first full voice frame\n");
          iax2_vnak(fr->callno);
       } else {
          f.subclass.format = ast_format_compatibility_bitfield2format(iaxs[fr->callno]->voiceformat);
          f.datalen = len;
          if (f.datalen >= 0) {
             if (f.datalen)
                f.data.ptr = ptr;
             else
                f.data.ptr = NULL;
             if (trunked_ts)
                fr->ts = (iaxs[fr->callno]->last & 0xFFFF0000L) | (trunked_ts & 0xffff);
             else
                fr->ts = fix_peerts(&rxtrunktime, fr->callno, ts);
             /* Don't pass any packets until we're started */
             if (ast_test_flag(&iaxs[fr->callno]->state, IAX_STATE_STARTED)) {
                struct iax_frame *duped_fr;
 
                /* Common things */
                f.src = "IAX2";
                f.mallocd = 0;
                f.offset = 0;
                if (f.datalen && (f.frametype == AST_FRAME_VOICE))
                   f.samples = ast_codec_samples_count(&f);
                else
                   f.samples = 0;
                fr->outoforder = 0;
                iax_frame_wrap(fr, &f);
                duped_fr = iaxfrdup2(fr);
                if (duped_fr)
                   schedule_delivery(duped_fr, 1, 1, &fr->ts);
                if (iaxs[fr->callno] && iaxs[fr->callno]->last < fr->ts)
                   iaxs[fr->callno]->last = fr->ts;
             }
          } else {
             ast_log(LOG_WARNING, "Datalen < 0?\n");
          }
       }
       ast_mutex_unlock(&iaxsl[fr->callno]);
       ptr += len;
       packet_len -= len;
    }
 
    return 1;
 }

◆ socket_read()

static int socket_read	(	int *	id,
		int	fd,
		short	events,
		void *	cbdata
	)

static

Definition at line 9773 of file chan_iax2.c.

References iax2_thread::addr, ast_copy_string(), ast_debug, AST_LIST_INSERT_HEAD, AST_LIST_LOCK, AST_LIST_TRAVERSE, AST_LIST_UNLOCK, ast_log, ast_random(), ast_recvfrom(), ast_sockaddr_cmp_addr(), ast_sockaddr_copy(), iax2_thread::buf, iax2_thread::buf_len, iax2_thread::buf_size, iax2_thread::callno, iax2_thread::cond, ast_iax2_full_hdr::csub, iax2_thread::csub, iax2_thread::curfunc, defer_full_frame(), errno, iax2_thread::ffinfo, find_idle_thread(), handle_error(), IAX_FLAG_FULL, IAX_IOSTATE_IDLE, IAX_IOSTATE_READY, if(), iax2_thread::ioaddr, iax2_thread::iofd, iax2_thread::iostate, iax2_thread::list, iax2_thread::lock, LOG_WARNING, NULL, iax2_thread::readbuf, ast_iax2_full_hdr::scallno, signal_condition(), test_losspct, thread, ast_iax2_full_hdr::type, and iax2_thread::type.

Referenced by peer_set_srcaddr(), and set_config().

 {
    struct iax2_thread *thread;
    time_t t;
    static time_t last_errtime = 0;
    struct ast_iax2_full_hdr *fh;
 
    if (!(thread = find_idle_thread())) {
       time(&t);
       if (t != last_errtime) {
          last_errtime = t;
          ast_debug(1, "Out of idle IAX2 threads for I/O, pausing!\n");
       }
       usleep(1);
       return 1;
    }
 
    thread->iofd = fd;
    thread->buf_len = ast_recvfrom(fd, thread->readbuf, sizeof(thread->readbuf), 0, &thread->ioaddr);
    thread->buf_size = sizeof(thread->readbuf);
    thread->buf = thread->readbuf;
    if (thread->buf_len < 0) {
       if (errno != ECONNREFUSED && errno != EAGAIN)
          ast_log(LOG_WARNING, "Error: %s\n", strerror(errno));
       handle_error();
       thread->iostate = IAX_IOSTATE_IDLE;
       signal_condition(&thread->lock, &thread->cond);
       return 1;
    }
    if (test_losspct && ((100.0 * ast_random() / (RAND_MAX + 1.0)) < test_losspct)) { /* simulate random loss condition */
       thread->iostate = IAX_IOSTATE_IDLE;
       signal_condition(&thread->lock, &thread->cond);
       return 1;
    }
 
    /* Determine if this frame is a full frame; if so, and any thread is currently
       processing a full frame for the same callno from this peer, then drop this
       frame (and the peer will retransmit it) */
    fh = (struct ast_iax2_full_hdr *) thread->buf;
    if (ntohs(fh->scallno) & IAX_FLAG_FULL) {
       struct iax2_thread *cur = NULL;
       uint16_t callno = ntohs(fh->scallno) & ~IAX_FLAG_FULL;
 
       AST_LIST_LOCK(&active_list);
       AST_LIST_TRAVERSE(&active_list, cur, list) {
          if ((cur->ffinfo.callno == callno) &&
              !ast_sockaddr_cmp_addr(&cur->ffinfo.addr, &thread->ioaddr))
             break;
       }
       if (cur) {
          /* we found another thread processing a full frame for this call,
             so queue it up for processing later. */
          defer_full_frame(thread, cur);
          AST_LIST_UNLOCK(&active_list);
          thread->iostate = IAX_IOSTATE_IDLE;
          signal_condition(&thread->lock, &thread->cond);
          return 1;
       } else {
          /* this thread is going to process this frame, so mark it */
          thread->ffinfo.callno = callno;
          ast_sockaddr_copy(&thread->ffinfo.addr, &thread->ioaddr);
          thread->ffinfo.type = fh->type;
          thread->ffinfo.csub = fh->csub;
          AST_LIST_INSERT_HEAD(&active_list, thread, list);
       }
       AST_LIST_UNLOCK(&active_list);
    }
 
    /* Mark as ready and send on its way */
    thread->iostate = IAX_IOSTATE_READY;
 #ifdef DEBUG_SCHED_MULTITHREAD
    ast_copy_string(thread->curfunc, "socket_process", sizeof(thread->curfunc));
 #endif
    signal_condition(&thread->lock, &thread->cond);
 
    return 1;
 }

◆ spawn_dp_lookup()

static void spawn_dp_lookup	(	int	callno,
		const char *	context,
		const char *	callednum,
		const char *	callerid
	)

static

Definition at line 9581 of file chan_iax2.c.

References ast_calloc, ast_copy_string(), ast_log, ast_pthread_create_detached, ast_strdup, dpreq_data::callednum, dpreq_data::callerid, dpreq_data::callno, dpreq_data::context, dp_lookup_thread(), LOG_WARNING, and NULL.

Referenced by socket_process_helper().

 {
    pthread_t newthread;
    struct dpreq_data *dpr;
 
    if (!(dpr = ast_calloc(1, sizeof(*dpr))))
       return;
 
    dpr->callno = callno;
    ast_copy_string(dpr->context, context, sizeof(dpr->context));
    ast_copy_string(dpr->callednum, callednum, sizeof(dpr->callednum));
    if (callerid)
       dpr->callerid = ast_strdup(callerid);
    if (ast_pthread_create_detached(&newthread, NULL, dp_lookup_thread, dpr)) {
       ast_log(LOG_WARNING, "Unable to start lookup thread!\n");
    }
 }

◆ start_network_thread()

static int start_network_thread ( void )

static

Definition at line 12600 of file chan_iax2.c.

References ast_calloc, ast_cond_destroy, ast_cond_init, ast_cond_wait, ast_free, AST_LIST_INSERT_TAIL, AST_LIST_LOCK, AST_LIST_UNLOCK, ast_log, ast_mutex_destroy, ast_mutex_init, ast_mutex_lock, ast_mutex_unlock, ast_pthread_create_background, ast_verb, iax2_thread::cond, iax2_process_thread(), IAX_THREAD_TYPE_POOL, iaxthreadcount, iax2_thread::init_cond, iax2_thread::init_lock, iax2_thread::list, iax2_thread::lock, LOG_ERROR, LOG_WARNING, netthreadid, network_thread(), NULL, thread, iax2_thread::threadid, iax2_thread::threadnum, and iax2_thread::type.

Referenced by load_module().

 {
    struct iax2_thread *thread;
    int threadcount = 0;
    int x;
    for (x = 0; x < iaxthreadcount; x++) {
       thread = ast_calloc(1, sizeof(*thread));
       if (thread) {
          thread->type = IAX_THREAD_TYPE_POOL;
          thread->threadnum = ++threadcount;
          ast_mutex_init(&thread->lock);
          ast_cond_init(&thread->cond, NULL);
          ast_mutex_init(&thread->init_lock);
          ast_cond_init(&thread->init_cond, NULL);
 
          ast_mutex_lock(&thread->init_lock);
 
          if (ast_pthread_create_background(&thread->threadid, NULL, iax2_process_thread, thread)) {
             ast_log(LOG_WARNING, "Failed to create new thread!\n");
             ast_mutex_destroy(&thread->lock);
             ast_cond_destroy(&thread->cond);
             ast_mutex_unlock(&thread->init_lock);
             ast_mutex_destroy(&thread->init_lock);
             ast_cond_destroy(&thread->init_cond);
             ast_free(thread);
             thread = NULL;
             continue;
          }
          /* Wait for the thread to be ready */
          ast_cond_wait(&thread->init_cond, &thread->init_lock);
 
          /* Done with init_lock */
          ast_mutex_unlock(&thread->init_lock);
 
          AST_LIST_LOCK(&idle_list);
          AST_LIST_INSERT_TAIL(&idle_list, thread, list);
          AST_LIST_UNLOCK(&idle_list);
       }
    }
    if (ast_pthread_create_background(&netthreadid, NULL, network_thread, NULL)) {
       ast_log(LOG_ERROR, "Failed to create new thread!\n");
       return -1;
    }
    ast_verb(2, "%d helper threads started\n", threadcount);
    return 0;
 }

◆ stop_stuff()

static void stop_stuff ( int callno )

static

Definition at line 9277 of file chan_iax2.c.

References iax2_destroy_helper().

Referenced by socket_process_helper().

 {
    iax2_destroy_helper(iaxs[callno]);
 }

◆ store_by_peercallno()

static void store_by_peercallno ( struct chan_iax2_pvt * pvt )

static

Definition at line 2418 of file chan_iax2.c.

References ao2_link, ast_log, LOG_ERROR, and chan_iax2_pvt::peercallno.

Referenced by __find_callno(), complete_transfer(), and socket_process_helper().

 {
    if (!pvt->peercallno) {
       ast_log(LOG_ERROR, "This should not be called without a peer call number.\n");
       return;
    }
 
    ao2_link(iax_peercallno_pvts, pvt);
 }

◆ store_by_transfercallno()

static void store_by_transfercallno ( struct chan_iax2_pvt * pvt )

static

Definition at line 2399 of file chan_iax2.c.

References ao2_link, ast_log, LOG_ERROR, and chan_iax2_pvt::transfercallno.

Referenced by try_transfer().

 {
    if (!pvt->transfercallno) {
       ast_log(LOG_ERROR, "This should not be called without a transfer call number.\n");
       return;
    }
 
    ao2_link(iax_transfercallno_pvts, pvt);
 }

◆ timing_read()

static int timing_read	(	int *	id,
		int	fd,
		short	events,
		void *	cbdata
	)

static

Definition at line 9460 of file chan_iax2.c.

References iax2_trunk_peer::addr, ast_debug, ast_free, AST_LIST_LOCK, AST_LIST_REMOVE_CURRENT, AST_LIST_TRAVERSE_SAFE_BEGIN, AST_LIST_TRAVERSE_SAFE_END, AST_LIST_UNLOCK, ast_log, ast_mutex_destroy, ast_mutex_lock, ast_mutex_unlock, ast_sockaddr_stringify(), ast_timer_ack(), ast_tvnow(), ast_verbose(), iax2_trunk_expired(), iaxtrunkdebug, iax2_trunk_peer::lock, LOG_ERROR, NULL, send_trunk(), totalcalls, trunk_timed, iax2_trunk_peer::trunkdataalloc, iax2_trunk_peer::trunkdatalen, and trunkmaxsize.

Referenced by network_thread().

 {
    int res, processed = 0, totalcalls = 0;
    struct iax2_trunk_peer *tpeer = NULL, *drop = NULL;
    struct timeval now = ast_tvnow();
 
    if (iaxtrunkdebug) {
       ast_verbose("Beginning trunk processing. Trunk queue ceiling is %d bytes per host\n", trunkmaxsize);
    }
 
    if (timer) {
       if (ast_timer_ack(timer, 1) < 0) {
          ast_log(LOG_ERROR, "Timer failed acknowledge\n");
          return 0;
       }
    }
 
    /* For each peer that supports trunking... */
    AST_LIST_LOCK(&tpeers);
    AST_LIST_TRAVERSE_SAFE_BEGIN(&tpeers, tpeer, list) {
       processed++;
       res = 0;
       ast_mutex_lock(&tpeer->lock);
       /* We can drop a single tpeer per pass.  That makes all this logic
          substantially easier */
       if (!drop && iax2_trunk_expired(tpeer, &now)) {
          /* Take it out of the list, but don't free it yet, because it
             could be in use */
          AST_LIST_REMOVE_CURRENT(list);
          drop = tpeer;
       } else {
          res = send_trunk(tpeer, &now);
          trunk_timed++;
          if (iaxtrunkdebug) {
             ast_verbose(" - Trunk peer (%s) has %d call chunk%s in transit, %u bytes backloged and has hit a high water mark of %u bytes\n",
                      ast_sockaddr_stringify(&tpeer->addr),
                      res,
                      (res != 1) ? "s" : "",
                      tpeer->trunkdatalen,
                      tpeer->trunkdataalloc);
          }
       }
       totalcalls += res;
       res = 0;
       ast_mutex_unlock(&tpeer->lock);
    }
    AST_LIST_TRAVERSE_SAFE_END;
    AST_LIST_UNLOCK(&tpeers);
 
    if (drop) {
       ast_mutex_lock(&drop->lock);
       /*  Once we have this lock, we're sure nobody else is using it or could use it once we release it,
          because by the time they could get tpeerlock, we've already grabbed it */
       ast_debug(1, "Dropping unused iax2 trunk peer '%s'\n", ast_sockaddr_stringify(&drop->addr));
       if (drop->trunkdata) {
          ast_free(drop->trunkdata);
          drop->trunkdata = NULL;
       }
       ast_mutex_unlock(&drop->lock);
       ast_mutex_destroy(&drop->lock);
       ast_free(drop);
    }
 
    if (iaxtrunkdebug) {
       ast_verbose("Ending trunk processing with %d peers and %d call chunks processed\n", processed, totalcalls);
    }
    iaxtrunkdebug = 0;
 
    return 1;
 }

◆ transfercallno_pvt_cmp_cb()

static int transfercallno_pvt_cmp_cb	(	void *	obj,
		void *	arg,
		int	flags
	)

static

Definition at line 14724 of file chan_iax2.c.

References CMP_MATCH, CMP_STOP, chan_iax2_pvt::frames_received, and match().

Referenced by load_objects().

 {
    struct chan_iax2_pvt *pvt = obj, *pvt2 = arg;
 
    /* The frames_received field is used to hold whether we're matching
     * against a full frame or not ... */
 
    return match(&pvt2->transfer, pvt2->transfercallno, pvt2->callno, pvt,
       pvt2->frames_received) ? CMP_MATCH | CMP_STOP : 0;
 }

◆ transfercallno_pvt_hash_cb()

static int transfercallno_pvt_hash_cb	(	const void *	obj,
		const int	flags
	)

static

Definition at line 14717 of file chan_iax2.c.

References chan_iax2_pvt::transfercallno.

Referenced by load_objects().

 {
    const struct chan_iax2_pvt *pvt = obj;
 
    return pvt->transfercallno;
 }

◆ transmit_frame()

static int transmit_frame ( void * data )

static

Definition at line 4282 of file chan_iax2.c.

References AST_LIST_INSERT_TAIL, ast_mutex_lock, ast_mutex_unlock, iax_frame::callno, stasis_subscription::data, frame_queue, iax2_sched_add(), iax_frame_free(), iax_frame::list, iax_frame::retrans, iax_frame::retries, iax_frame::retrytime, send_packet(), and iax_frame::sentyet.

Referenced by iax2_transmit().

 {
    struct iax_frame *fr = data;
 
    ast_mutex_lock(&iaxsl[fr->callno]);
 
    fr->sentyet = 1;
 
    if (iaxs[fr->callno]) {
       send_packet(fr);
    }
 
    if (fr->retries < 0) {
       ast_mutex_unlock(&iaxsl[fr->callno]);
       /* No retransmit requested */
       iax_frame_free(fr);
    } else {
       /* We need reliable delivery.  Schedule a retransmission */
       AST_LIST_INSERT_TAIL(&frame_queue[fr->callno], fr, list);
       fr->retries++;
       fr->retrans = iax2_sched_add(sched, fr->retrytime, attempt_transmit, fr);
       ast_mutex_unlock(&iaxsl[fr->callno]);
    }
 
    return 0;
 }

◆ transmit_trunk()

static int transmit_trunk	(	struct iax_frame *	f,
		struct ast_sockaddr *	addr,
		int	sockfd
	)

static

Definition at line 3389 of file chan_iax2.c.

References ast_debug, ast_sendto(), iax_frame::data, iax_frame::datalen, errno, and handle_error().

Referenced by send_trunk().

 {
    int res;
    res = ast_sendto(sockfd, f->data, f->datalen, 0, addr);
 
    if (res < 0) {
       ast_debug(1, "Received error: %s\n", strerror(errno));
       handle_error();
    } else
       res = 0;
    return res;
 }

◆ try_transfer()

static int try_transfer	(	struct chan_iax2_pvt *	pvt,
		struct iax_ies *	ies
	)

static

Definition at line 8568 of file chan_iax2.c.

References iax_ies::apparent_addr, AST_FRAME_IAX, ast_log, ast_sockaddr_copy(), ast_sockaddr_isnull(), iax_ie_data::buf, iax_ies::callno, IAX_COMMAND_TXCNT, iax_ie_append_int(), IAX_IE_TRANSFERID, LOG_WARNING, iax_ie_data::pos, send_command_transfer(), store_by_transfercallno(), chan_iax2_pvt::transfer, TRANSFER_BEGIN, TRANSFER_NONE, chan_iax2_pvt::transfercallno, iax_ies::transferid, chan_iax2_pvt::transferid, and chan_iax2_pvt::transferring.

Referenced by socket_process_helper().

 {
    int newcall = 0;
    struct iax_ie_data ied;
    struct ast_sockaddr new = { {0,} };
 
    memset(&ied, 0, sizeof(ied));
    if (!ast_sockaddr_isnull(&ies->apparent_addr)) {
       ast_sockaddr_copy(&new, &ies->apparent_addr);
    }
    if (ies->callno) {
       newcall = ies->callno;
    }
    if (!newcall || ast_sockaddr_isnull(&new)) {
       ast_log(LOG_WARNING, "Invalid transfer request\n");
       return -1;
    }
    pvt->transfercallno = newcall;
    ast_sockaddr_copy(&pvt->transfer, &new);
    pvt->transferid = ies->transferid;
    /* only store by transfercallno if this is a new transfer,
     * just in case we get a duplicate TXREQ */
    if (pvt->transferring == TRANSFER_NONE) {
       store_by_transfercallno(pvt);
    }
    pvt->transferring = TRANSFER_BEGIN;
 
    if (ies->transferid) {
       iax_ie_append_int(&ied, IAX_IE_TRANSFERID, ies->transferid);
    }
    send_command_transfer(pvt, AST_FRAME_IAX, IAX_COMMAND_TXCNT, 0, ied.buf, ied.pos);
    return 0;
 }

◆ uncompress_subclass()

static iax2_format uncompress_subclass ( unsigned char csub )

static

Definition at line 1833 of file chan_iax2.c.

References iax2_thread::csub, IAX_FLAG_SC_LOG, and IAX_MAX_SHIFT.

Referenced by decode_frame(), handle_call_token(), and socket_process_helper().

 {
    /* If the SC_LOG flag is set, return 2^csub otherwise csub */
    if (csub & IAX_FLAG_SC_LOG) {
       /* special case for 'compressed' -1 */
       if (csub == 0xff)
          return -1;
       else
          return 1LL << (csub & ~IAX_FLAG_SC_LOG & IAX_MAX_SHIFT);
    }
    else
       return csub;
 }

◆ unlink_peer()

static void unlink_peer ( struct iax2_peer * peer )

static

Definition at line 8879 of file chan_iax2.c.

References ao2_unlink, AST_SCHED_DEL, iax2_peer::expire, peer_unref(), and iax2_peer::pokeexpire.

Referenced by __expire_registry(), build_peer(), and prune_peers().

 {
    if (peer->expire > -1) {
       if (!AST_SCHED_DEL(sched, peer->expire)) {
          peer->expire = -1;
          peer_unref(peer);
       }
    }
 
    if (peer->pokeexpire > -1) {
       if (!AST_SCHED_DEL(sched, peer->pokeexpire)) {
          peer->pokeexpire = -1;
          peer_unref(peer);
       }
    }
 
    ao2_unlink(peers, peer);
 }

◆ unload_module()

static int unload_module ( void )

static

Definition at line 14682 of file chan_iax2.c.

References __unload_module(), and ast_custom_function_unregister().

Referenced by load_module().

 {
    ast_custom_function_unregister(&iaxpeer_function);
    ast_custom_function_unregister(&iaxvar_function);
    return __unload_module();
 }

◆ unwrap_timestamp()

static void unwrap_timestamp ( struct iax_frame * fr )

static

Definition at line 4073 of file chan_iax2.c.

References iax_frame::af, ast_debug, AST_FRAME_VIDEO, iax_frame::callno, ast_frame::frametype, get_from_jb(), iaxdebug, chan_iax2_pvt::last, and iax_frame::ts.

Referenced by schedule_delivery().

 {
    /* Video mini frames only encode the lower 15 bits of the session
     * timestamp, but other frame types (e.g. audio) encode 16 bits. */
    const int ts_shift = (fr->af.frametype == AST_FRAME_VIDEO) ? 15 : 16;
    const int lower_mask = (1 << ts_shift) - 1;
    const int upper_mask = ~lower_mask;
    const int last_upper = iaxs[fr->callno]->last & upper_mask;
 
    if ( (fr->ts & upper_mask) == last_upper ) {
       const int x = fr->ts - iaxs[fr->callno]->last;
       const int threshold = (ts_shift == 15) ? 25000 : 50000;
 
       if (x < -threshold) {
          /* Sudden big jump backwards in timestamp:
             What likely happened here is that miniframe timestamp has circled but we haven't
             gotten the update from the main packet.  We'll just pretend that we did, and
             update the timestamp appropriately. */
          fr->ts = (last_upper + (1 << ts_shift)) | (fr->ts & lower_mask);
          if (iaxdebug)
             ast_debug(1, "schedule_delivery: pushed forward timestamp\n");
       } else if (x > threshold) {
          /* Sudden apparent big jump forwards in timestamp:
             What's likely happened is this is an old miniframe belonging to the previous
             top 15 or 16-bit timestamp that has turned up out of order.
             Adjust the timestamp appropriately. */
          fr->ts = (last_upper - (1 << ts_shift)) | (fr->ts & lower_mask);
          if (iaxdebug)
             ast_debug(1, "schedule_delivery: pushed back timestamp\n");
       }
    }
 }

◆ update_jbsched()

static void update_jbsched ( struct chan_iax2_pvt * pvt )

static

Definition at line 4108 of file chan_iax2.c.

References ast_tvdiff_ms(), ast_tvnow(), chan_iax2_pvt::callno, CALLNO_TO_PTR, iax2_sched_replace(), chan_iax2_pvt::jb, jb_next(), chan_iax2_pvt::jbid, and chan_iax2_pvt::rxcore.

Referenced by __get_from_jb(), and schedule_delivery().

 {
    int when;
 
    when = ast_tvdiff_ms(ast_tvnow(), pvt->rxcore);
 
    when = jb_next(pvt->jb) - when;
 
    if (when <= 0) {
       /* XXX should really just empty until when > 0.. */
       when = 1;
    }
 
    pvt->jbid = iax2_sched_replace(pvt->jbid, sched, when, get_from_jb,
       CALLNO_TO_PTR(pvt->callno));
 }

◆ update_packet()

static int update_packet ( struct iax_frame * f )

static

Definition at line 3521 of file chan_iax2.c.

References attempt_transmit(), build_rand_pad(), iax_frame::callno, iax_frame::data, iax_frame::datalen, iax_frame::dcallno, ast_iax2_full_hdr::dcallno, decode_frame(), iax_frame::ecx, iax_frame::encmethods, encrypt_frame(), IAX_FLAG_RETRANS, iax_frame::iseqno, ast_iax2_full_hdr::iseqno, chan_iax2_pvt::iseqno, iax_frame::mydcx, and iax_frame::semirand.

Referenced by __attempt_transmit().

 {
    /* Called with iaxsl lock held, and iaxs[callno] non-NULL */
    struct ast_iax2_full_hdr *fh = f->data;
    struct ast_frame af;
 
    /* if frame is encrypted. decrypt before updating it. */
    if (f->encmethods) {
       decode_frame(&f->mydcx, fh, &af, &f->datalen);
    }
    /* Mark this as a retransmission */
    fh->dcallno = ntohs(IAX_FLAG_RETRANS | f->dcallno);
    /* Update iseqno */
    f->iseqno = iaxs[f->callno]->iseqno;
    fh->iseqno = f->iseqno;
 
    /* Now re-encrypt the frame */
    if (f->encmethods) {
    /* since this is a retransmit frame, create a new random padding
     * before re-encrypting. */
       build_rand_pad(f->semirand, sizeof(f->semirand));
       encrypt_frame(&f->ecx, fh, f->semirand, &f->datalen);
    }
    return 0;
 }

◆ update_registry()

static int update_registry	(	struct ast_sockaddr *	addr,
		int	callno,
		char *	devtype,
		int	fd,
		unsigned short	refresh
	)

static

Precondition: iaxsl[callno] is locked

Note: Since this function calls send_command_final(), the pvt struct for the given call number may disappear while executing this function.

Definition at line 9002 of file chan_iax2.c.

References iax2_peer::addr, ao2_cleanup, ast_app_inboxcount(), ast_db_del(), ast_db_put(), AST_DEVICE_UNAVAILABLE, AST_DEVICE_UNKNOWN, AST_DEVSTATE_CACHABLE, ast_devstate_changed(), ast_endpoint_blob_publish(), AST_ENDPOINT_OFFLINE, AST_ENDPOINT_ONLINE, ast_endpoint_set_state(), ast_endpoint_state_type(), AST_FRAME_IAX, ast_json_pack(), ast_json_unref(), ast_log, ast_mutex_lock, ast_mutex_unlock, ast_mwi_state_cache(), ast_mwi_state_type(), AST_SCHED_DEL, ast_sockaddr_cmp(), ast_sockaddr_copy(), ast_sockaddr_isnull(), ast_sockaddr_port, ast_sockaddr_stringify(), ast_sockaddr_stringify_addr(), ast_strdupa, ast_strlen_zero, ast_test_flag, ast_test_flag64, ast_verb, iax_ie_data::buf, iax2_peer::cid_name, iax2_peer::cid_num, iax2_peer::endpoint, iax2_peer::expire, iax2_peer::expiry, find_peer(), iax2_datetime(), iax2_poke_peer(), iax2_regfunk, iax2_sched_add(), IAX_COMMAND_REGACK, iax_firmware_get_version(), IAX_HASCALLERID, IAX_IE_APPARENT_ADDR, iax_ie_append_addr(), iax_ie_append_int(), iax_ie_append_short(), iax_ie_append_str(), IAX_IE_CALLING_NAME, IAX_IE_CALLING_NUMBER, IAX_IE_DATETIME, IAX_IE_FIRMWAREVER, IAX_IE_MSGCOUNT, IAX_IE_REFRESH, IAX_IE_USERNAME, IAX_RTCACHEFRIENDS, IAX_RTUPDATE, IAX_STATE_AUTHENTICATED, IAX_TEMPONLY, LOG_NOTICE, LOG_WARNING, iax2_peer::mailbox, max_reg_expire, iax2_peer::maxcallno, min_reg_expire, iax2_peer::name, ast_mwi_state::new_msgs, NULL, ast_mwi_state::old_msgs, peer_ref(), peer_unref(), peercnt_modify(), iax_ie_data::pos, RAII_VAR, realtime_update_peer(), refresh, register_peer_exten(), send_command_final(), iax2_peer::sockfd, stasis_cache_get(), stasis_message_data(), version, and iax2_peer::zonetag.

Referenced by socket_process_helper().

 {
 
    /* Called from IAX thread only, with proper iaxsl lock */
    struct iax_ie_data ied = {
       .pos = 0,
    };
    struct iax2_peer *p;
    int msgcount;
    char data[80];
    uint16_t version;
    const char *peer_name;
    int res = -1;
    char *str_addr;
 
    peer_name = ast_strdupa(iaxs[callno]->peer);
 
    /* SLD: Another find_peer call during registration - this time when we are really updating our registration */
    ast_mutex_unlock(&iaxsl[callno]);
    if (!(p = find_peer(peer_name, 1))) {
       ast_mutex_lock(&iaxsl[callno]);
       ast_log(LOG_WARNING, "No such peer '%s'\n", peer_name);
       return -1;
    }
    ast_mutex_lock(&iaxsl[callno]);
    if (!iaxs[callno])
       goto return_unref;
 
    if (ast_test_flag64((&globalflags), IAX_RTUPDATE) && (ast_test_flag64(p, IAX_TEMPONLY|IAX_RTCACHEFRIENDS))) {
       if (!ast_sockaddr_isnull(addr)) {
          time_t nowtime;
          time(&nowtime);
          realtime_update_peer(peer_name, addr, nowtime);
       } else {
          realtime_update_peer(peer_name, addr, 0);
       }
    }
 
    /* treat an unspecified refresh interval as the minimum */
    if (!refresh) {
       refresh = min_reg_expire;
    }
    if (refresh > max_reg_expire) {
       ast_log(LOG_NOTICE, "Restricting registration for peer '%s' to %d seconds (requested %d)\n",
          p->name, max_reg_expire, refresh);
       p->expiry = max_reg_expire;
    } else if (refresh < min_reg_expire) {
       ast_log(LOG_NOTICE, "Restricting registration for peer '%s' to %d seconds (requested %d)\n",
          p->name, min_reg_expire, refresh);
       p->expiry = min_reg_expire;
    } else {
       p->expiry = refresh;
    }
 
    if (ast_sockaddr_cmp(&p->addr, addr)) {
       RAII_VAR(struct ast_json *, blob, NULL, ast_json_unref);
 
       if (iax2_regfunk) {
          iax2_regfunk(p->name, 1);
       }
 
       /* modify entry in peercnts table as _not_ registered */
       peercnt_modify((unsigned char) 0, 0, &p->addr);
 
       /* Stash the IP address from which they registered */
       ast_sockaddr_copy(&p->addr, addr);
 
       str_addr = ast_strdupa(ast_sockaddr_stringify_addr(addr));
 
       snprintf(data, sizeof(data), "%s:%d", ast_sockaddr_stringify(addr), p->expiry);
 
       if (!ast_test_flag64(p, IAX_TEMPONLY) && !ast_sockaddr_isnull(addr)) {
          ast_db_put("IAX/Registry", p->name, data);
          ast_verb(3, "Registered IAX2 '%s' (%s) at %s\n",
                   p->name,
                    ast_test_flag(&iaxs[callno]->state, IAX_STATE_AUTHENTICATED) ? "AUTHENTICATED" : "UNAUTHENTICATED",
                    ast_sockaddr_stringify(addr));
          ast_endpoint_set_state(p->endpoint, AST_ENDPOINT_ONLINE);
          blob = ast_json_pack("{s: s, s: s, s: i}",
             "peer_status", "Registered",
             "address", str_addr,
             "port", ast_sockaddr_port(addr));
          register_peer_exten(p, 1);
          ast_devstate_changed(AST_DEVICE_UNKNOWN, AST_DEVSTATE_CACHABLE, "IAX2/%s", p->name); /* Activate notification */
       } else if (!ast_test_flag64(p, IAX_TEMPONLY)) {
          ast_verb(3, "Unregistered IAX2 '%s' (%s)\n",
                   p->name,
                    ast_test_flag(&iaxs[callno]->state, IAX_STATE_AUTHENTICATED) ? "AUTHENTICATED" : "UNAUTHENTICATED");
          ast_endpoint_set_state(p->endpoint, AST_ENDPOINT_OFFLINE);
          blob = ast_json_pack("{s: s}",
             "peer_status", "Unregistered");
          register_peer_exten(p, 0);
          ast_db_del("IAX/Registry", p->name);
          ast_devstate_changed(AST_DEVICE_UNAVAILABLE, AST_DEVSTATE_CACHABLE, "IAX2/%s", p->name); /* Activate notification */
       }
 
       ast_endpoint_blob_publish(p->endpoint, ast_endpoint_state_type(), blob);
 
       /* Update the host */
       /* Verify that the host is really there */
       iax2_poke_peer(p, callno);
    }
 
    /* modify entry in peercnts table as registered */
    if (p->maxcallno) {
       peercnt_modify((unsigned char) 1, p->maxcallno, &p->addr);
    }
 
    /* Make sure our call still exists, an INVAL at the right point may make it go away */
    if (!iaxs[callno]) {
       res = -1;
       goto return_unref;
    }
 
    /* Store socket fd */
    p->sockfd = fd;
    /* Setup the expiry */
    if (p->expire > -1) {
       if (!AST_SCHED_DEL(sched, p->expire)) {
          p->expire = -1;
          peer_unref(p);
       }
    }
 
    if (p->expiry && !ast_sockaddr_isnull(addr)) {
       p->expire = iax2_sched_add(sched, (p->expiry + 10) * 1000, expire_registry, peer_ref(p));
       if (p->expire == -1)
          peer_unref(p);
    }
    iax_ie_append_str(&ied, IAX_IE_USERNAME, p->name);
    iax_ie_append_int(&ied, IAX_IE_DATETIME, iax2_datetime(p->zonetag));
    if (!ast_sockaddr_isnull(addr)) {
       struct ast_sockaddr peer_addr;
 
       ast_sockaddr_copy(&peer_addr, &p->addr);
 
       iax_ie_append_short(&ied, IAX_IE_REFRESH, p->expiry);
       iax_ie_append_addr(&ied, IAX_IE_APPARENT_ADDR, &peer_addr);
       if (!ast_strlen_zero(p->mailbox)) {
          int new, old;
          RAII_VAR(struct stasis_message *, msg, NULL, ao2_cleanup);
 
          msg = stasis_cache_get(ast_mwi_state_cache(), ast_mwi_state_type(), p->mailbox);
          if (msg) {
             struct ast_mwi_state *mwi_state = stasis_message_data(msg);
             new = mwi_state->new_msgs;
             old = mwi_state->old_msgs;
          } else { /* Fall back on checking the mailbox directly */
             ast_app_inboxcount(p->mailbox, &new, &old);
          }
 
          if (new > 255) {
             new = 255;
          }
          if (old > 255) {
             old = 255;
          }
          msgcount = (old << 8) | new;
 
          iax_ie_append_short(&ied, IAX_IE_MSGCOUNT, msgcount);
       }
       if (ast_test_flag64(p, IAX_HASCALLERID)) {
          iax_ie_append_str(&ied, IAX_IE_CALLING_NUMBER, p->cid_num);
          iax_ie_append_str(&ied, IAX_IE_CALLING_NAME, p->cid_name);
       }
    }
    if (iax_firmware_get_version(devtype, &version)) {
       iax_ie_append_short(&ied, IAX_IE_FIRMWAREVER, version);
    }
 
    res = 0;
 
 return_unref:
    peer_unref(p);
 
    return res ? res : send_command_final(iaxs[callno], AST_FRAME_IAX, IAX_COMMAND_REGACK, 0, ied.buf, ied.pos, -1);
 }

◆ user_cmp_cb()

static int user_cmp_cb	(	void *	obj,
		void *	arg,
		int	flags
	)

static

Note: The only member of the user passed here guaranteed to be set is the name field

Definition at line 1996 of file chan_iax2.c.

References CMP_MATCH, CMP_STOP, iax2_user::name, and OBJ_KEY.

Referenced by load_objects().

 {
    struct iax2_user *user = obj, *user2 = arg;
    const char *name = arg;
 
    return !strcmp(user->name, flags & OBJ_KEY ? name : user2->name) ?
          CMP_MATCH | CMP_STOP : 0;
 }

◆ user_delme_cb()

static int user_delme_cb	(	void *	obj,
		void *	arg,
		int	flags
	)

static

Definition at line 13390 of file chan_iax2.c.

References ast_set_flag64, and IAX_DELME.

Referenced by delete_users().

 {
    struct iax2_user *user = obj;
 
    ast_set_flag64(user, IAX_DELME);
 
    return 0;
 }

◆ user_destructor()

static void user_destructor ( void * obj )

static

Definition at line 13105 of file chan_iax2.c.

References iax2_user::acl, ast_free_acl_list(), ast_string_field_free_memory, ast_variables_destroy(), iax2_user::contexts, free_context(), NULL, and iax2_user::vars.

Referenced by build_user().

 {
    struct iax2_user *user = obj;
 
    ast_free_acl_list(user->acl);
    free_context(user->contexts);
    if(user->vars) {
       ast_variables_destroy(user->vars);
       user->vars = NULL;
    }
    ast_string_field_free_memory(user);
 }

◆ user_hash_cb()

static int user_hash_cb	(	const void *	obj,
		const int	flags
	)

static

Note: The only member of the user passed here guaranteed to be set is the name field

Definition at line 1985 of file chan_iax2.c.

References ast_str_hash(), iax2_user::name, and OBJ_KEY.

Referenced by load_objects().

 {
    const struct iax2_user *user = obj;
    const char *name = obj;
 
    return ast_str_hash(flags & OBJ_KEY ? name : user->name);
 }

◆ user_unref()

static struct iax2_user* user_unref ( struct iax2_user * user )

static

Definition at line 2039 of file chan_iax2.c.

References ao2_ref, and NULL.

Referenced by authenticate_request(), authenticate_verify(), build_user(), calltoken_required(), check_access(), handle_cli_iax2_prune_realtime(), handle_cli_iax2_show_users(), iax2_destroy_helper(), prune_users(), requirecalltoken_mark_auto(), and set_config().

 {
    ao2_ref(user, -1);
    return NULL;
 }

◆ vnak_retransmit()

static void vnak_retransmit	(	int	callno,
		int	last
	)

static

Definition at line 9378 of file chan_iax2.c.

References AST_LIST_TRAVERSE, frame_queue, iax_frame::list, iax_frame::oseqno, iax_frame::retries, and send_packet().

Referenced by socket_process_helper().

 {
    struct iax_frame *f;
 
    AST_LIST_TRAVERSE(&frame_queue[callno], f, list) {
       /* Send a copy immediately */
       if (((unsigned char) (f->oseqno - last) < 128) &&
             (f->retries >= 0)) {
          send_packet(f);
       }
    }
 }

◆ wait_for_peercallno()

static int wait_for_peercallno ( struct chan_iax2_pvt * pvt )

static

Note: expects the pvt to be locked

Definition at line 5348 of file chan_iax2.c.

References chan_iax2_pvt::callno, DEADLOCK_AVOIDANCE, and chan_iax2_pvt::peercallno.

Referenced by iax2_indicate(), and iax2_setoption().

 {
    unsigned short callno = pvt->callno;
 
    if (!pvt->peercallno) {
       /* We don't know the remote side's call number, yet.  :( */
       int count = 10;
       while (count-- && pvt && !pvt->peercallno) {
          DEADLOCK_AVOIDANCE(&iaxsl[callno]);
          pvt = iaxs[callno];
       }
       if (!pvt || !pvt->peercallno) {
          return -1;
       }
    }
 
    return 0;
 }

Variable Documentation

◆ __mod_info

struct ast_module_info __mod_info = { .name = AST_MODULE, .flags = AST_MODFLAG_LOAD_ORDER , .description = "Inter Asterisk eXchange (Ver 2)" , .key = "This paragraph is copyright (c) 2006 by Digium, Inc. \In order for your module to load, it must return this \key via a function called \"key\". Any code which \includes this paragraph must be licensed under the GNU \General Public License version 2 or later (at your \option). In addition to Digium's general reservations \of rights, Digium expressly reserves the right to \allow other parties to license this paragraph under \different terms. Any use of Digium, Inc. trademarks or \logos (including \"Asterisk\" or \"Digium\") without \express written permission of Digium, Inc. is prohibited.\n" , .buildopt_sum = "30ef0c93b36035ec78c9cfd712d36d9b" , .support_level = AST_MODULE_SUPPORT_CORE, .load = load_module, .unload = unload_module, .reload = reload, .load_pri = AST_MODPRI_CHANNEL_DRIVER, .requires = "dnsmgr", .optional_modules = "res_crypto", }

static

Definition at line 14974 of file chan_iax2.c.

◆ accountcode

char accountcode[AST_MAX_ACCOUNT_CODE]

static

Definition at line 428 of file chan_iax2.c.

Referenced by __find_callno(), ast_channel_yank(), ast_res_pjsip_initialize_configuration(), build_peer(), build_user(), channel_snapshot_base_create(), check_access(), check_peer_ok(), create_addr_from_peer(), func_channel_write_real(), load_module(), set_config(), set_config_destroy(), tds_log(), and verify_mock_cdr_record().

◆ acl_change_sub

struct stasis_subscription* acl_change_sub

static

subscription id for ACL change events

Definition at line 324 of file chan_iax2.c.

◆ active_list

struct active_list active_list = { .first = NULL, .last = NULL, .lock = { PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP , NULL, {1, 0} } , }

static

◆ adsi

int adsi = 0

static

Definition at line 432 of file chan_iax2.c.

Referenced by build_peer(), build_user(), and set_config().

◆ amaflags

int amaflags = 0

static

Definition at line 431 of file chan_iax2.c.

Referenced by __find_callno(), ast_channel_yank(), build_radius_record(), cdr_read_callback(), cdr_write(), func_channel_write_real(), pbx_builtin_setamaflags(), set_config(), set_config_destroy(), and verify_mock_cdr_record().

◆ ast_module_info

const struct ast_module_info* ast_module_info = &__mod_info

static

Definition at line 14974 of file chan_iax2.c.

◆ authdebug

int authdebug = 0

static

Definition at line 341 of file chan_iax2.c.

Referenced by register_verify(), set_config(), and socket_process_helper().

◆ autokill

int autokill = 0

static

Definition at line 342 of file chan_iax2.c.

Referenced by iax2_call(), and set_config().

◆ callno_limits

struct ao2_container* callno_limits

static

Table containing custom callno limit rules for a range of ip addresses.

Definition at line 961 of file chan_iax2.c.

◆ callno_pool

struct call_number_pool callno_pool

static

table of available call numbers

Definition at line 918 of file chan_iax2.c.

Referenced by create_callno_pools(), get_unused_callno(), handle_cli_iax2_show_callno_limits(), and replace_callno().

◆ callno_pool_lock

ast_mutex_t callno_pool_lock = { PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP , NULL, {1, 0} }

static

Definition at line 915 of file chan_iax2.c.

Referenced by get_unused_callno(), and replace_callno().

◆ callno_pool_trunk

struct call_number_pool callno_pool_trunk

static

table of available trunk call numbers

Definition at line 921 of file chan_iax2.c.

Referenced by create_callno_pools(), get_unused_callno(), handle_cli_iax2_show_callno_limits(), and replace_callno().

◆ calltoken_ignores

struct ao2_container* calltoken_ignores

static

Table containing ip addresses not requiring calltoken validation

Definition at line 964 of file chan_iax2.c.

◆ cli_iax2

struct ast_cli_entry cli_iax2[]

static

Definition at line 14553 of file chan_iax2.c.

◆ cos

unsigned int cos

Definition at line 352 of file chan_iax2.c.

Referenced by a2lsf(), ast_playtones_start(), ast_sip_initialize_sorcery_transport(), callerid_init(), goertzel_init(), lsf2a(), smath(), smb_fft(), smb_pitch_shift(), tdd_init(), and tonepair_alloc().

◆ debugaddr

struct ast_sockaddr debugaddr

static

Definition at line 1177 of file chan_iax2.c.

Referenced by handle_cli_iax2_set_debug(), iax_outputframe(), and reload_config().

◆ DEFAULT_MAXCALLNO_LIMIT

uint16_t DEFAULT_MAXCALLNO_LIMIT = 2048

static

Definition at line 966 of file chan_iax2.c.

Referenced by set_config().

◆ DEFAULT_MAXCALLNO_LIMIT_NONVAL

uint16_t DEFAULT_MAXCALLNO_LIMIT_NONVAL = 8192

static

Definition at line 968 of file chan_iax2.c.

Referenced by set_config().

◆ default_parkinglot

char default_parkinglot[AST_MAX_CONTEXT]

static

Definition at line 318 of file chan_iax2.c.

Referenced by __find_callno(), and set_config().

◆ defaultsockfd

int defaultsockfd = -1

static

Definition at line 364 of file chan_iax2.c.

Referenced by build_peer(), create_addr(), iax2_do_register(), peer_set_sock_cb(), peer_set_srcaddr(), and set_config().

◆ delayreject

int delayreject = 0

static

Definition at line 433 of file chan_iax2.c.

Referenced by auth_fail(), set_config(), set_config_destroy(), and socket_process_helper().

◆ dpcache

struct dpcache dpcache = { .first = NULL, .last = NULL, .lock = { PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP , NULL, {1, 0} } , }

static

◆ dynamic_list

struct dynamic_list dynamic_list = { .first = NULL, .last = NULL, .lock = { PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP , NULL, {1, 0} } , }

static

◆ first

struct iax_frame* first

Definition at line 932 of file chan_iax2.c.

◆ frame_queue

struct { ... } frame_queue[IAX_MAX_CALLS]

a list of frames that may need to be retransmitted

Note: The contents of this list do not need to be explicitly destroyed on module unload. This is because all active calls are destroyed, and all frames in this queue will get destroyed as a part of that process.; Contents protected by the iaxsl[] locks

Referenced by __attempt_transmit(), complete_transfer(), handle_cli_iax2_show_stats(), pvt_destructor(), resend_with_token(), socket_process_helper(), transmit_frame(), and vnak_retransmit().

◆ global_max_trunk_mtu

int global_max_trunk_mtu

static

Maximum MTU, 0 if not used

Definition at line 313 of file chan_iax2.c.

Referenced by handle_cli_iax2_set_mtu(), handle_cli_iax2_show_stats(), iax2_trunk_queue(), and set_config().

◆ global_maxcallno

uint16_t global_maxcallno

static

Definition at line 970 of file chan_iax2.c.

Referenced by set_peercnt_limit().

◆ global_maxcallno_nonval

uint16_t global_maxcallno_nonval

static

Total num of call numbers allowed to be allocated without calltoken validation

Definition at line 973 of file chan_iax2.c.

◆ global_rtautoclear

int global_rtautoclear = 120

static

Definition at line 484 of file chan_iax2.c.

◆ globalflags

struct ast_flags64 globalflags = { 0 }

static

Definition at line 437 of file chan_iax2.c.

◆ iax2_authmethods

int iax2_authmethods = 0

static

Definition at line 435 of file chan_iax2.c.

Referenced by build_peer(), build_user(), iax2_call(), and set_config().

◆ iax2_capability

iax2_format iax2_capability = IAX_CAPABILITY_FULLBANDWIDTH

static

Definition at line 414 of file chan_iax2.c.

Referenced by build_peer(), build_user(), iax2_request(), and set_config().

◆ iax2_encryption

int iax2_encryption = 0

static

Definition at line 434 of file chan_iax2.c.

Referenced by build_peer(), build_user(), iax2_call(), and set_config().

◆ iax2_regfunk

int(* iax2_regfunk) (const char *username, int onoff) = NULL

static

Definition at line 366 of file chan_iax2.c.

Referenced by __expire_registry(), reg_source_db(), and update_registry().

◆ iax2_switch

struct ast_switch iax2_switch

static

Definition at line 14543 of file chan_iax2.c.

◆ iax2_tech

struct ast_channel_tech iax2_tech

static

Definition at line 1293 of file chan_iax2.c.

◆ iax2_variable_datastore_info

const struct ast_datastore_info iax2_variable_datastore_info

static

Initial value:

= {
   .type = "IAX2_VARIABLE",
   .duplicate = iax2_dup_variable_datastore,
   .destroy = iax2_free_variable_datastore,
}

Definition at line 1523 of file chan_iax2.c.

◆ iax_peercallno_pvts

struct ao2_container* iax_peercallno_pvts

static

Another container of iax2_pvt structures.

Active IAX2 pvt structs are also stored in this container, if they are a part of an active call where we know the remote side's call number. The reason for this is that incoming media frames do not contain our call number. So, instead of having to iterate the entire iaxs array, we use this container to look up calls where the remote side is using a given call number.

Definition at line 1154 of file chan_iax2.c.

◆ iax_transfercallno_pvts

struct ao2_container* iax_transfercallno_pvts

static

Another container of iax2_pvt structures.

*Active IAX2 pvt stucts used during transfering a call are stored here.

Definition at line 1170 of file chan_iax2.c.

◆ iaxactivethreadcount

int iaxactivethreadcount = 0

static

Definition at line 679 of file chan_iax2.c.

◆ iaxcompat

int iaxcompat = 0

static

Definition at line 343 of file chan_iax2.c.

Referenced by set_config(), and socket_process_helper().

◆ iaxdebug

int iaxdebug = 0

static

Definition at line 416 of file chan_iax2.c.

Referenced by __find_callno(), calc_rxstamp(), calc_timestamp(), decode_frame(), encrypt_frame(), handle_cli_iax2_set_debug(), iax2_call(), iax2_do_register(), iax2_indicate(), iax_debug_output(), iax_outputframe(), send_packet(), socket_process_helper(), and unwrap_timestamp().

◆ iaxdefaultdpcache

int iaxdefaultdpcache =10 * 60

static

Definition at line 346 of file chan_iax2.c.

Referenced by complete_dpreply(), dp_lookup(), and find_cache().

◆ iaxdefaulttimeout

int iaxdefaulttimeout = 5

static

Definition at line 348 of file chan_iax2.c.

Referenced by find_cache().

◆ iaxdynamicthreadcount

int iaxdynamicthreadcount = 0

static

Definition at line 677 of file chan_iax2.c.

◆ iaxdynamicthreadnum

int iaxdynamicthreadnum = 0

static

Definition at line 678 of file chan_iax2.c.

◆ iaxmaxthreadcount

int iaxmaxthreadcount = DEFAULT_MAX_THREAD_COUNT

static

Definition at line 676 of file chan_iax2.c.

◆ iaxpeer_function

struct ast_custom_function iaxpeer_function

static

Initial value:

= {
   .name = "IAXPEER",
   .read = function_iaxpeer,
}

Definition at line 14462 of file chan_iax2.c.

◆ iaxs

struct chan_iax2_pvt* iaxs[IAX_MAX_CALLS]

static

an array of iax2 pvt structures

The container for active chan_iax2_pvt structures is implemented as an array for extremely quick direct access to the correct pvt structure based on the local call number. The local call number is used as the index into the array where the associated pvt structure is stored.

Definition at line 1125 of file chan_iax2.c.

◆ iaxsl

ast_mutex_t iaxsl[ARRAY_LEN(iaxs)]

static

chan_iax2_pvt structure locks

These locks are used when accessing a pvt structure in the iaxs array. The index used here is the same as used in the iaxs array. It is the local call number for the associated pvt struct.

Definition at line 1163 of file chan_iax2.c.

◆ iaxthreadcount

int iaxthreadcount = DEFAULT_THREAD_COUNT

static

Definition at line 675 of file chan_iax2.c.

Referenced by start_network_thread().

◆ iaxtrunkdebug

int iaxtrunkdebug = 0

static

Definition at line 418 of file chan_iax2.c.

Referenced by handle_cli_iax2_set_debug_trunk(), and timing_read().

◆ iaxvar_function

struct ast_custom_function iaxvar_function

static

Initial value:

= {
   .name = "IAXVAR",
   .read = acf_iaxvar_read,
   .write = acf_iaxvar_write,
}

Definition at line 10056 of file chan_iax2.c.

◆ idle_list

struct idle_list idle_list = { .first = NULL, .last = NULL, .lock = { PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP , NULL, {1, 0} } , }

static

◆ io

struct io_context* io

static

Definition at line 411 of file chan_iax2.c.

◆ jittertargetextra

int jittertargetextra = 40

static

Definition at line 334 of file chan_iax2.c.

Referenced by new_iax(), and set_config().

◆ lagrq_time

int lagrq_time = 10

static

Definition at line 330 of file chan_iax2.c.

Referenced by __find_callno(), __send_lagrq(), make_trunk(), and set_config().

◆ language

char language[MAX_LANGUAGE] = ""

static

Definition at line 320 of file chan_iax2.c.

Referenced by build_user(), check_access(), set_config(), and set_config_destroy().

◆ last

struct iax_frame* last

Definition at line 932 of file chan_iax2.c.

◆ last_authmethod

int last_authmethod = 0

static

Definition at line 344 of file chan_iax2.c.

Referenced by check_access(), register_verify(), and registry_authrequest().

◆ max_calltoken_delay

time_t max_calltoken_delay = 10

static

Definition at line 938 of file chan_iax2.c.

◆ max_reg_expire

int max_reg_expire

static

Definition at line 356 of file chan_iax2.c.

Referenced by set_config(), and update_registry().

◆ max_retries

int max_retries = 4

static

Definition at line 328 of file chan_iax2.c.

Referenced by __attempt_transmit().

◆ maxauthreq

int maxauthreq = 3

static

Definition at line 327 of file chan_iax2.c.

Referenced by build_user(), and set_config().

◆ maxjitterbuffer

int maxjitterbuffer =1000

static

Definition at line 331 of file chan_iax2.c.

Referenced by new_iax(), and set_config().

◆ maxjitterinterps

int maxjitterinterps =10

static

Definition at line 333 of file chan_iax2.c.

Referenced by new_iax(), and set_config().

◆ min_reg_expire

int min_reg_expire

static

Definition at line 355 of file chan_iax2.c.

Referenced by __expire_registry(), __find_callno(), build_peer(), set_config(), and update_registry().

◆ mohinterpret

char mohinterpret[MAX_MUSICCLASS]

static

Definition at line 429 of file chan_iax2.c.

Referenced by __find_callno(), build_peer(), build_user(), check_access(), iax2_call(), set_config(), and set_config_destroy().

◆ mohsuggest

char mohsuggest[MAX_MUSICCLASS]

static

Definition at line 430 of file chan_iax2.c.

Referenced by __find_callno(), __sip_alloc(), ast_res_pjsip_initialize_configuration(), build_peer(), build_user(), check_access(), check_peer_ok(), create_addr_from_peer(), iax2_call(), set_config(), set_config_destroy(), and set_peer_defaults().

◆ netsock

struct ast_netsock_list* netsock

static

Definition at line 362 of file chan_iax2.c.

◆ netthreadid

pthread_t netthreadid = AST_PTHREADT_NULL

static

Definition at line 439 of file chan_iax2.c.

Referenced by __unload_module(), and start_network_thread().

◆ network_change_sched_id

int network_change_sched_id = -1

static

Definition at line 325 of file chan_iax2.c.

Referenced by network_change_sched_cb(), and network_change_stasis_cb().

◆ network_change_sub

struct stasis_subscription* network_change_sub

static

subscription id for network change events

Definition at line 323 of file chan_iax2.c.

◆ outsock

struct ast_netsock_list* outsock

static

used if sourceaddress specified and bindaddr == INADDR_ANY

Definition at line 363 of file chan_iax2.c.

◆ papp

char* papp = "IAX2Provision"

static

Definition at line 12244 of file chan_iax2.c.

◆ peercnts

struct ao2_container* peercnts

static

Table containing peercnt objects for every ip address consuming a callno

Definition at line 958 of file chan_iax2.c.

◆ peers

struct ao2_container* peers

static

Definition at line 952 of file chan_iax2.c.

◆ ping_time

int ping_time = 21

static

Definition at line 329 of file chan_iax2.c.

Referenced by __find_callno(), __send_ping(), make_trunk(), and set_config().

◆ prefs_global

struct iax2_codec_pref prefs_global

static

Definition at line 304 of file chan_iax2.c.

Referenced by build_peer(), build_user(), create_addr(), new_iax(), and set_config().

◆ qos

struct { ... } qos

Referenced by peer_set_srcaddr(), and set_config().

◆ randomcalltokendata

int randomcalltokendata

static

Definition at line 936 of file chan_iax2.c.

◆ regcontext

char regcontext[AST_MAX_CONTEXT] = ""

static

Definition at line 321 of file chan_iax2.c.

Referenced by __unload_module(), add_to_regcontext(), ast_sip_persistent_endpoint_update_state(), conf_load_config(), register_peer_exten(), and set_config().

◆ registrations

struct registrations registrations = { .first = NULL, .last = NULL, .lock = { PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP , NULL, {1, 0} } , }

static

Referenced by cli_complete_registration(), and get_registrations().

◆ resyncthreshold

int resyncthreshold =1000

static

Definition at line 332 of file chan_iax2.c.

Referenced by new_iax(), and set_config().

◆ sched

struct ast_sched_context* sched

static

Definition at line 412 of file chan_iax2.c.

◆ srvlookup

int srvlookup = 0

static

Definition at line 358 of file chan_iax2.c.

Referenced by __iax2_do_register_s(), build_peer(), create_addr(), iax2_append_register(), and set_config().

◆ tdesc

const char tdesc[] = "Inter Asterisk eXchange Driver (Ver 2)"

static

Definition at line 306 of file chan_iax2.c.

◆ test_losspct

int test_losspct = 0

static

Definition at line 420 of file chan_iax2.c.

Referenced by handle_cli_iax2_test_losspct(), and socket_read().

◆ timer

struct ast_timer* timer

static

Definition at line 360 of file chan_iax2.c.

Referenced by __ast_channel_alloc_ap(), ast_bridge_features_init(), ast_sip_session_create_outgoing(), dahdi_timer_ack(), dahdi_timer_close(), dahdi_timer_disable_continuous(), dahdi_timer_enable_continuous(), dahdi_timer_fd(), dahdi_timer_get_event(), dahdi_timer_open(), dahdi_timer_set_rate(), kqueue_timer_open(), new_invite(), process_dahdi(), pthread_timer_ack(), pthread_timer_close(), pthread_timer_destructor(), pthread_timer_disable_continuous(), pthread_timer_enable_continuous(), pthread_timer_fd(), pthread_timer_get_event(), pthread_timer_hash(), pthread_timer_open(), pthread_timer_set_rate(), run_timer(), softmix_mixing_loop(), timer_destroy(), timerfd_timer_ack(), timerfd_timer_disable_continuous(), timerfd_timer_enable_continuous(), timerfd_timer_fd(), timerfd_timer_get_event(), timerfd_timer_open(), timerfd_timer_set_rate(), and timing_test().

◆ tos

unsigned int tos

Definition at line 351 of file chan_iax2.c.

◆ total_nonval_callno_used

uint16_t total_nonval_callno_used = 0

static

Definition at line 975 of file chan_iax2.c.

◆ tpeers

struct tpeers tpeers = { .first = NULL, .last = NULL, .lock = { PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP , NULL, {1, 0} } , }

static

◆ transmit_processor

struct ast_taskprocessor* transmit_processor

static

Definition at line 934 of file chan_iax2.c.

◆ trunk_maxmtu

int trunk_maxmtu

static

Definition at line 314 of file chan_iax2.c.

Referenced by handle_cli_iax2_show_stats(), iax2_trunk_queue(), and reload_config().

◆ trunk_nmaxmtu

int trunk_nmaxmtu

static

Trunk MTU statistics

Definition at line 314 of file chan_iax2.c.

Referenced by handle_cli_iax2_show_stats(), and reload_config().

◆ trunk_timed

int trunk_timed

static

Definition at line 314 of file chan_iax2.c.

Referenced by handle_cli_iax2_show_stats(), reload_config(), and timing_read().

◆ trunk_untimed

int trunk_untimed

static

Definition at line 314 of file chan_iax2.c.

Referenced by handle_cli_iax2_show_stats(), iax2_trunk_queue(), and reload_config().

◆ trunkfreq

int trunkfreq = 20

static

Definition at line 338 of file chan_iax2.c.

Referenced by load_module(), send_trunk(), and set_config().

◆ trunkmaxsize

int trunkmaxsize = MAX_TRUNKDATA

static

Definition at line 339 of file chan_iax2.c.

Referenced by iax2_trunk_queue(), set_config(), set_config_destroy(), and timing_read().

◆ users

struct ao2_container* users

static

Definition at line 955 of file chan_iax2.c.

Data Structures

Macros

Typedefs

Enumerations

Functions

Variables

Detailed Description

Macro Definition Documentation

◆ ACN_FORMAT1

◆ ACN_FORMAT2

◆ CALLNO_ENTRY_GET_CALLNO

◆ CALLNO_ENTRY_IS_VALIDATED

◆ CALLNO_ENTRY_SET_VALIDATED

◆ CALLNO_ENTRY_TO_PTR

◆ CALLNO_TO_PTR

◆ CALLTOKEN_HASH_FORMAT

◆ CALLTOKEN_IE_FORMAT

◆ DEBUG_SCHED_MULTITHREAD

◆ DEBUG_SUPPORT

◆ DEFAULT_CONTEXT

◆ DEFAULT_DROP

◆ DEFAULT_FREQ_NOTOK

◆ DEFAULT_FREQ_OK

◆ DEFAULT_MAX_THREAD_COUNT

◆ DEFAULT_MAXMS

◆ DEFAULT_RETRY_TIME

◆ DEFAULT_THREAD_COUNT

◆ DEFAULT_TRUNKDATA

◆ FORMAT [1/3]

◆ FORMAT [2/3]

◆ FORMAT [3/3]

◆ FORMAT2 [1/3]

◆ FORMAT2 [2/3]

◆ FORMAT2 [3/3]

◆ FORMATB

◆ GAMMA

◆ IAX2_TRUNK_PREFACE

◆ IAX_ALLOWFWDOWNLOAD

◆ IAX_ALREADYGONE

◆ IAX_CALLENCRYPTED

◆ IAX_CAPABILITY_FULLBANDWIDTH

◆ IAX_CAPABILITY_LOWBANDWIDTH

◆ IAX_CAPABILITY_LOWFREE

◆ IAX_CAPABILITY_MEDBANDWIDTH

◆ IAX_CODEC_NOCAP

◆ IAX_CODEC_NOPREFS

◆ IAX_CODEC_USER_FIRST

◆ IAX_DEBUGDIGEST

◆ IAX_DELAYPBXSTART

◆ IAX_DELME

◆ IAX_DYNAMIC

◆ IAX_ENCRYPTED

◆ IAX_FORCE_ENCRYPT

◆ IAX_HASCALLERID

◆ IAX_IMMEDIATE

◆ IAX_KEYPOPULATED

◆ IAX_MAXAUTHREQ

◆ IAX_NOTRANSFER

◆ IAX_PROVISION

◆ IAX_QUELCH

◆ IAX_RECVCONNECTEDLINE

◆ IAX_RTAUTOCLEAR

◆ IAX_RTCACHEFRIENDS

◆ IAX_RTIGNOREREGEXPIRE

◆ IAX_RTSAVE_SYSNAME

◆ IAX_RTUPDATE

◆ IAX_SENDANI

◆ IAX_SENDCONNECTEDLINE

◆ IAX_SHRINKCALLERID

◆ IAX_TEMPONLY

◆ IAX_TRANSFERMEDIA

◆ IAX_TRUNK

◆ IAX_TRUNKTIMESTAMPS

◆ IAX_USEJITTERBUF

◆ MARK_IAX_SUBCLASS_TX

◆ MAX_JITTER_BUFFER

◆ MAX_PEER_BUCKETS

◆ MAX_RETRY_TIME

◆ MAX_TIMESTAMP_SKEW

◆ MAX_TRUNK_MTU