netsock2.c File Reference

Network socket handling. More...

#include "asterisk.h"
#include "asterisk/config.h"
#include "asterisk/netsock2.h"
#include "asterisk/utils.h"
#include "asterisk/threadstorage.h"

Include dependency graph for netsock2.c:

Go to the source code of this file.

Functions
static void	__init_ast_sockaddr_stringify_buf (void)
void	_ast_sockaddr_from_sin (struct ast_sockaddr *addr, const struct sockaddr_in *sin, const char *file, int line, const char *func)
uint16_t	_ast_sockaddr_port (const struct ast_sockaddr *addr, const char *file, int line, const char *func)
void	_ast_sockaddr_set_port (struct ast_sockaddr *addr, uint16_t port, const char *file, int line, const char *func)
int	_ast_sockaddr_to_sin (const struct ast_sockaddr *addr, struct sockaddr_in *sin, const char *file, int line, const char *func)
int	ast_accept (int sockfd, struct ast_sockaddr *addr)
	Wrapper around accept(2) that uses struct ast_sockaddr. More...
int	ast_bind (int sockfd, const struct ast_sockaddr *addr)
	Wrapper around bind(2) that uses struct ast_sockaddr. More...
int	ast_connect (int sockfd, const struct ast_sockaddr *addr)
	Wrapper around connect(2) that uses struct ast_sockaddr. More...
int	ast_getsockname (int sockfd, struct ast_sockaddr *addr)
	Wrapper around getsockname(2) that uses struct ast_sockaddr. More...
ssize_t	ast_recvfrom (int sockfd, void *buf, size_t len, int flags, struct ast_sockaddr *src_addr)
	Wrapper around recvfrom(2) that uses struct ast_sockaddr. More...
ssize_t	ast_sendto (int sockfd, const void *buf, size_t len, int flags, const struct ast_sockaddr *dest_addr)
	Wrapper around sendto(2) that uses ast_sockaddr. More...
int	ast_set_qos (int sockfd, int tos, int cos, const char *desc)
	Set type of service. More...
int	ast_sockaddr_apply_netmask (const struct ast_sockaddr *addr, const struct ast_sockaddr *netmask, struct ast_sockaddr *result)
	Apply a netmask to an address and store the result in a separate structure. More...
int	ast_sockaddr_cidr_bits (const struct ast_sockaddr *sa)
	Count the 1 bits in a netmask. More...
int	ast_sockaddr_cmp (const struct ast_sockaddr *a, const struct ast_sockaddr *b)
	Compares two ast_sockaddr structures. More...
int	ast_sockaddr_cmp_addr (const struct ast_sockaddr *a, const struct ast_sockaddr *b)
	Compares the addresses of two ast_sockaddr structures. More...
int	ast_sockaddr_hash (const struct ast_sockaddr *addr)
	Computes a hash value from the address. The port is ignored. More...
uint32_t	ast_sockaddr_ipv4 (const struct ast_sockaddr *addr)
	Get an IPv4 address of an ast_sockaddr. More...
int	ast_sockaddr_ipv4_mapped (const struct ast_sockaddr *addr, struct ast_sockaddr *ast_mapped)
	Convert an IPv4-mapped IPv6 address into an IPv4 address. More...
int	ast_sockaddr_is_any (const struct ast_sockaddr *addr)
	Determine if the address type is unspecified, or "any" address. More...
int	ast_sockaddr_is_ipv4 (const struct ast_sockaddr *addr)
	Determine if the address is an IPv4 address. More...
int	ast_sockaddr_is_ipv4_mapped (const struct ast_sockaddr *addr)
	Determine if this is an IPv4-mapped IPv6 address. More...
int	ast_sockaddr_is_ipv4_multicast (const struct ast_sockaddr *addr)
	Determine if an IPv4 address is a multicast address. More...
int	ast_sockaddr_is_ipv6 (const struct ast_sockaddr *addr)
	Determine if this is an IPv6 address. More...
int	ast_sockaddr_is_ipv6_link_local (const struct ast_sockaddr *addr)
	Determine if this is a link-local IPv6 address. More...
int	ast_sockaddr_parse (struct ast_sockaddr *addr, const char *str, int flags)
	Parse an IPv4 or IPv6 address string. More...
int	ast_sockaddr_resolve (struct ast_sockaddr **addrs, const char *str, int flags, int family)
	Parses a string with an IPv4 or IPv6 address and place results into an array. More...
int	ast_sockaddr_resolve_first_af (struct ast_sockaddr *addr, const char *name, int flag, int family)
	Pulls first resolved address and returns it. More...
int	ast_sockaddr_split_hostport (char *str, char **host, char **port, int flags)
	Splits a string into its host and port components. More...
char *	ast_sockaddr_stringify_fmt (const struct ast_sockaddr *sa, int format)
	Convert a socket address to a string. More...
const char *	ast_transport2str (enum ast_transport transport)
	Returns a string representation of an ast_transport. More...

Variables
static struct ast_threadstorage	ast_sockaddr_stringify_buf = { .once = PTHREAD_ONCE_INIT , .key_init = __init_ast_sockaddr_stringify_buf , .custom_init = NULL , }

Detailed Description

Network socket handling.

Author

Viagénie aster.nosp@m.iskv.nosp@m.6@via.nosp@m.geni.nosp@m.e.ca

Definition in file netsock2.c.

Function Documentation

__init_ast_sockaddr_stringify_buf()

static void __init_ast_sockaddr_stringify_buf ( void  )

static

Definition at line 63 of file netsock2.c.

{

_ast_sockaddr_from_sin()

void _ast_sockaddr_from_sin	(	struct ast_sockaddr *	addr,
		const struct sockaddr_in *	sin,
		const char *	file,
		int	line,
		const char *	func
	)

Definition at line 689 of file netsock2.c.

References __LOG_DEBUG, ast_log, DEBUG_ATLEAST, ast_sockaddr::len, and ast_sockaddr::ss.

{
   memcpy(&addr->ss, sin, sizeof(*sin));

   if (addr->ss.ss_family != AF_INET && DEBUG_ATLEAST(1)) {
      ast_log(__LOG_DEBUG, file, line, func, "Address family is not AF_INET\n");
   }

   addr->len = sizeof(*sin);
}

_ast_sockaddr_port()

uint16_t _ast_sockaddr_port	(	const struct ast_sockaddr *	addr,
		const char *	file,
		int	line,
		const char *	func
	)

Definition at line 453 of file netsock2.c.

References __LOG_DEBUG, ast_log, DEBUG_ATLEAST, ast_sockaddr::len, and ast_sockaddr::ss.

{
   /*
    * Test addr->len first to be tolerant of an ast_sockaddr_setnull()
    * addr.  In that case addr->len might be the only value initialized.
    */
   if (addr->len == sizeof(struct sockaddr_in)
      && addr->ss.ss_family == AF_INET) {
      return ntohs(((struct sockaddr_in *)&addr->ss)->sin_port);
   }
   if (addr->len == sizeof(struct sockaddr_in6)
      && addr->ss.ss_family == AF_INET6) {
      return ntohs(((struct sockaddr_in6 *)&addr->ss)->sin6_port);
   }
   if (DEBUG_ATLEAST(1)) {
      ast_log(__LOG_DEBUG, file, line, func, "Not an IPv4 nor IPv6 address, cannot get port.\n");
   }
   return 0;
}

_ast_sockaddr_set_port()

void _ast_sockaddr_set_port	(	struct ast_sockaddr *	addr,
		uint16_t	port,
		const char *	file,
		int	line,
		const char *	func
	)

Definition at line 473 of file netsock2.c.

References __LOG_DEBUG, ast_log, DEBUG_ATLEAST, ast_sockaddr::len, and ast_sockaddr::ss.

{
   /*
    * Test addr->len first to be tolerant of an ast_sockaddr_setnull()
    * addr.  In that case addr->len might be the only value initialized.
    */
   if (addr->len == sizeof(struct sockaddr_in)
      && addr->ss.ss_family == AF_INET) {
      ((struct sockaddr_in *)&addr->ss)->sin_port = htons(port);
   } else if (addr->len == sizeof(struct sockaddr_in6)
      && addr->ss.ss_family == AF_INET6) {
      ((struct sockaddr_in6 *)&addr->ss)->sin6_port = htons(port);
   } else if (DEBUG_ATLEAST(1)) {
      ast_log(__LOG_DEBUG, file, line, func,
         "Not an IPv4 nor IPv6 address, cannot set port.\n");
   }
}

_ast_sockaddr_to_sin()

int _ast_sockaddr_to_sin	(	const struct ast_sockaddr *	addr,
		struct sockaddr_in *	sin,
		const char *	file,
		int	line,
		const char *	func
	)

Definition at line 668 of file netsock2.c.

References __LOG_DEBUG, __LOG_ERROR, ast_log, ast_sockaddr_isnull(), DEBUG_ATLEAST, ast_sockaddr::len, and ast_sockaddr::ss.

{
   if (ast_sockaddr_isnull(addr)) {
      memset(sin, 0, sizeof(*sin));
      return 1;
   }

   if (addr->len != sizeof(*sin)) {
      ast_log(__LOG_ERROR, file, line, func, "Bad address cast to IPv4\n");
      return 0;
   }

   if (addr->ss.ss_family != AF_INET && DEBUG_ATLEAST(1)) {
      ast_log(__LOG_DEBUG, file, line, func, "Address family is not AF_INET\n");
   }

   *sin = *(struct sockaddr_in *)&addr->ss;
   return 1;
}

ast_accept()

int ast_accept	(	int	sockfd,
		struct ast_sockaddr *	addr
	)

Wrapper around accept(2) that uses struct ast_sockaddr.

Since

1.8

For parameter and return information, see the man page for accept(2).

Definition at line 584 of file netsock2.c.

References ast_sockaddr::len, and ast_sockaddr::ss.

Referenced by ast_tcptls_server_root().

{
   addr->len = sizeof(addr->ss);
   return accept(sockfd, (struct sockaddr *)&addr->ss, &addr->len);
}

ast_bind()

int ast_bind	(	int	sockfd,
		const struct ast_sockaddr *	addr
	)

Wrapper around bind(2) that uses struct ast_sockaddr.

Since

1.8

For parameter and return information, see the man page for bind(2).

Definition at line 590 of file netsock2.c.

References ast_sockaddr::len, and ast_sockaddr::ss.

Referenced by ast_netsock_bindaddr(), ast_rtp_prop_set(), ast_tcptls_client_create(), ast_tcptls_server_start(), ast_udptl_new_with_bindaddr(), check_srcaddr(), load_module(), reload_config(), and rtp_allocate_transport().

{
   return bind(sockfd, (const struct sockaddr *)&addr->ss, addr->len);
}

ast_connect()

int ast_connect	(	int	sockfd,
		const struct ast_sockaddr *	addr
	)

Wrapper around connect(2) that uses struct ast_sockaddr.

Since

1.8

For parameter and return information, see the man page for connect(2).

Definition at line 595 of file netsock2.c.

References ast_sockaddr::len, and ast_sockaddr::ss.

Referenced by ast_audiosocket_connect(), ast_ouraddrfor(), ast_tcptls_client_start(), launch_netscript(), and stun_monitor_request().

{
   return connect(sockfd, (const struct sockaddr *)&addr->ss, addr->len);
}

ast_getsockname()

int ast_getsockname	(	int	sockfd,
		struct ast_sockaddr *	addr
	)

Wrapper around getsockname(2) that uses struct ast_sockaddr.

Since

1.8

For parameter and return information, see the man page for getsockname(2).

Definition at line 600 of file netsock2.c.

References ast_sockaddr::len, and ast_sockaddr::ss.

Referenced by ast_ouraddrfor(), ast_set_qos(), and ast_websocket_uri_cb().

{
   addr->len = sizeof(addr->ss);
   return getsockname(sockfd, (struct sockaddr *)&addr->ss, &addr->len);
}

ast_recvfrom()

ssize_t ast_recvfrom	(	int	sockfd,
		void *	buf,
		size_t	len,
		int	flags,
		struct ast_sockaddr *	src_addr
	)

Wrapper around recvfrom(2) that uses struct ast_sockaddr.

Since

1.8

For parameter and return information, see the man page for recvfrom(2).

Definition at line 606 of file netsock2.c.

References ast_sockaddr::len, and ast_sockaddr::ss.

Referenced by __rtp_recvfrom(), ast_udptl_read(), sipsock_read(), and socket_read().

{
   src_addr->len = sizeof(src_addr->ss);
   return recvfrom(sockfd, buf, len, flags,
         (struct sockaddr *)&src_addr->ss, &src_addr->len);
}

ast_sendto()

ssize_t ast_sendto	(	int	sockfd,
		const void *	buf,
		size_t	len,
		int	flags,
		const struct ast_sockaddr *	dest_addr
	)

Wrapper around sendto(2) that uses ast_sockaddr.

Since

1.8

For parameter and return information, see the man page for sendto(2)

Definition at line 614 of file netsock2.c.

References ast_sockaddr::len, and ast_sockaddr::ss.

Referenced by __rtp_sendto(), __sip_xmit(), ast_rtp_on_turn_rx_rtcp_data(), ast_rtp_on_turn_rx_rtp_data(), ast_statsd_log_string(), ast_udptl_write(), dundi_xmit(), hep_queue_cb(), multicast_send_control_packet(), raw_hangup(), rtp_raw_write(), send_apathetic_reply(), send_packet(), sip_send_keepalive(), and transmit_trunk().

{
   return sendto(sockfd, buf, len, flags,
            (const struct sockaddr *)&dest_addr->ss, dest_addr->len);
}

ast_set_qos()

int ast_set_qos	(	int	sockfd,
		int	tos,
		int	cos,
		const char *	desc
	)

Set type of service.

Since

1.8

Set ToS ("Type of Service for IPv4 and "Traffic Class for IPv6) and CoS (Linux's SO_PRIORITY)

Parameters

sockfd	File descriptor for socket on which to set the parameters
tos	The type of service for the socket
cos	The cost of service for the socket
desc	A text description of the socket in question.

Return values

0	Success
-1	Error, with errno set to an appropriate value

Definition at line 621 of file netsock2.c.

References ast_getsockname(), ast_log, ast_sockaddr_is_any(), ast_sockaddr_is_ipv6(), ast_verb, errno, and LOG_WARNING.

Referenced by ast_netsock_bindaddr(), ast_netsock_set_qos(), ast_rtp_qos_set(), ast_udptl_setqos(), config_load(), load_module(), reload_config(), and sip_prepare_socket().

{
   int res = 0;
   int set_tos;
   int set_tclass;
   struct ast_sockaddr addr;

   /* If the sock address is IPv6, the TCLASS field must be set. */
   set_tclass = !ast_getsockname(sockfd, &addr) && ast_sockaddr_is_ipv6(&addr) ? 1 : 0;

   /* If the sock address is IPv4 or (IPv6 set to any address [::]) set TOS bits */
   set_tos = (!set_tclass || (set_tclass && ast_sockaddr_is_any(&addr))) ? 1 : 0;

   if (set_tos) {
      if ((res = setsockopt(sockfd, IPPROTO_IP, IP_TOS, &tos, sizeof(tos)))) {
         ast_log(LOG_WARNING, "Unable to set %s DSCP TOS value to %d (may be you have no "
            "root privileges): %s\n", desc, tos, strerror(errno));
      } else if (tos) {
         ast_verb(2, "Using %s TOS bits %d\n", desc, tos);
      }
   }

#if defined(IPV6_TCLASS) && defined(IPPROTO_IPV6)
   if (set_tclass) {
      if (!ast_getsockname(sockfd, &addr) && ast_sockaddr_is_ipv6(&addr)) {
         if ((res = setsockopt(sockfd, IPPROTO_IPV6, IPV6_TCLASS, &tos, sizeof(tos)))) {
            ast_log(LOG_WARNING, "Unable to set %s DSCP TCLASS field to %d (may be you have no "
               "root privileges): %s\n", desc, tos, strerror(errno));
         } else if (tos) {
            ast_verb(2, "Using %s TOS bits %d in TCLASS field.\n", desc, tos);
         }
      }
   }
#endif

#ifdef linux
   if (setsockopt(sockfd, SOL_SOCKET, SO_PRIORITY, &cos, sizeof(cos))) {
      ast_log(LOG_WARNING, "Unable to set %s CoS to %d: %s\n", desc, cos,
         strerror(errno));
   } else if (cos) {
      ast_verb(2, "Using %s CoS mark %d\n", desc, cos);
   }
#endif

   return res;
}

ast_sockaddr_apply_netmask()

int ast_sockaddr_apply_netmask	(	const struct ast_sockaddr *	addr,
		const struct ast_sockaddr *	netmask,
		struct ast_sockaddr *	result
	)

Apply a netmask to an address and store the result in a separate structure.

When dealing with IPv6 addresses, one cannot apply a netmask with a simple logical AND operation. Futhermore, the incoming address may be an IPv4 address and needs to be mapped properly before attempting to apply a rule.

Parameters

addr	The IP address to apply the mask to.
netmask	The netmask configured in the host access rule.
result	The resultant address after applying the netmask to the given address

Return values

0	Successfully applied netmask
-1	Failed to apply netmask

Definition at line 357 of file netsock2.c.

References ast_sockaddr_from_sin, ast_sockaddr_is_ipv4(), ast_sockaddr_is_ipv6(), ast_sockaddr::len, ast_sockaddr::ss, and V6_WORD.

Referenced by addr_range_match_address_cb(), append_ha_core(), ast_apply_ha(), ast_sockaddr_stringify_port(), and authenticate_reply().

{
   int res = 0;

   if (ast_sockaddr_is_ipv4(addr)) {
      struct sockaddr_in result4 = { 0, };
      struct sockaddr_in *addr4 = (struct sockaddr_in *) &addr->ss;
      struct sockaddr_in *mask4 = (struct sockaddr_in *) &netmask->ss;
      result4.sin_family = AF_INET;
      result4.sin_addr.s_addr = addr4->sin_addr.s_addr & mask4->sin_addr.s_addr;
      ast_sockaddr_from_sin(result, &result4);
   } else if (ast_sockaddr_is_ipv6(addr)) {
      struct sockaddr_in6 result6 = { 0, };
      struct sockaddr_in6 *addr6 = (struct sockaddr_in6 *) &addr->ss;
      struct sockaddr_in6 *mask6 = (struct sockaddr_in6 *) &netmask->ss;
      int i;
      result6.sin6_family = AF_INET6;
      for (i = 0; i < 4; ++i) {
         V6_WORD(&result6, i) = V6_WORD(addr6, i) & V6_WORD(mask6, i);
      }
      memcpy(&result->ss, &result6, sizeof(result6));
      result->len = sizeof(result6);
   } else {
      /* Unsupported address scheme */
      res = -1;
   }

   return res;
}

ast_sockaddr_cidr_bits()

int ast_sockaddr_cidr_bits

(

const struct ast_sockaddr *

sa

)

Count the 1 bits in a netmask.

Since

12.4

Returns

number of 1 bits

Definition at line 130 of file netsock2.c.

References ast_sockaddr_ipv4_mapped(), ast_sockaddr_isnull(), ast_sockaddr::len, and ast_sockaddr::ss.

Referenced by ast_ha_join_cidr(), ast_sockaddr_stringify_addr(), and cli_print_body().

{
   struct ast_sockaddr sa_ipv4;
   const struct ast_sockaddr *sa_tmp;
   int bits = 0;
   int bytes;
   int i;
   int j;
   char *addr;

   if (ast_sockaddr_isnull(sa)) {
      return 0;
   }

   if (ast_sockaddr_ipv4_mapped(sa, &sa_ipv4)) {
      sa_tmp = &sa_ipv4;
   } else {
      sa_tmp = sa;
   }

   bytes = sa_tmp->len;
   addr = ((struct sockaddr *)&sa_tmp->ss)->sa_data;

   for (i = 0; i < bytes ; ++i) {
      for (j = 0; j < 8; ++j) {
         if ((addr[i] >> j) & 1) {
            bits++;
         }
      }
   }

   return bits;
}

ast_sockaddr_cmp()

int ast_sockaddr_cmp	(	const struct ast_sockaddr *	a,
		const struct ast_sockaddr *	b
	)

Compares two ast_sockaddr structures.

Since

1.8

Return values

-1	a is lexicographically smaller than b
0	a is equal to b
1	b is lexicographically smaller than a

Definition at line 388 of file netsock2.c.

References a, ast_sockaddr_ipv4_mapped(), b, ast_sockaddr::len, and ast_sockaddr::ss.

Referenced by __rtp_recvfrom(), ast_netsock_find(), ast_rtcp_interpret(), ast_rtp_instance_get_and_cmp_local_address(), ast_rtp_instance_get_and_cmp_requested_target_address(), ast_rtp_read(), ast_rtp_remote_address_set(), ast_sd_notify(), ast_sockaddr_copy(), ast_tcptls_client_create(), ast_tcptls_server_start(), AST_TEST_DEFINE(), ast_udptl_read(), dnsmgr_refresh(), find_tpeer(), find_transaction(), handle_command_response(), has_state_changed(), iax2_ack_registry(), iax2_getpeername(), iax2_getpeertrunk(), ice_candidate_cmp(), match(), parse_register_contact(), realtime_peer_by_name(), registry_rerequest(), reload_config(), rtcp_debug_test_addr(), rtp_add_candidates_to_ice(), rtp_debug_test_addr(), should_drop_packets(), sip_debug_test_addr(), sip_uri_domain_cmp(), socket_process_helper(), threadinfo_locate_cb(), transmit_register(), udptl_debug_test_addr(), and update_registry().

{
   const struct ast_sockaddr *a_tmp, *b_tmp;
   struct ast_sockaddr ipv4_mapped;

   a_tmp = a;
   b_tmp = b;

   if (a_tmp->len != b_tmp->len) {
      if (ast_sockaddr_ipv4_mapped(a, &ipv4_mapped)) {
         a_tmp = &ipv4_mapped;
      } else if (ast_sockaddr_ipv4_mapped(b, &ipv4_mapped)) {
         b_tmp = &ipv4_mapped;
      }
   }

   if (a_tmp->len < b_tmp->len) {
      return -1;
   } else if (a_tmp->len > b_tmp->len) {
      return 1;
   }

   return memcmp(&a_tmp->ss, &b_tmp->ss, a_tmp->len);
}

ast_sockaddr_cmp_addr()

int ast_sockaddr_cmp_addr	(	const struct ast_sockaddr *	a,
		const struct ast_sockaddr *	b
	)

Compares the addresses of two ast_sockaddr structures.

Since

1.8

Return values

-1	a is lexicographically smaller than b
0	a is equal to b
1	b is lexicographically smaller than a

Definition at line 413 of file netsock2.c.

References a, ast_sockaddr_ipv4_mapped(), b, ast_sockaddr::len, and ast_sockaddr::ss.

Referenced by add_sdp(), addr_range_cmp_cb(), addr_range_match_address_cb(), ast_apply_ha(), ast_sockaddr_copy(), AST_TEST_DEFINE(), authenticate_reply(), check_for_nat(), get_our_media_address(), iax_outputframe(), peer_ipcmp_cb_full(), peercnt_cmp_cb(), realtime_peer(), realtime_user(), reload_config(), rtcp_debug_test_addr(), rtp_add_candidates_to_ice(), rtp_debug_test_addr(), should_drop_packets(), sip_debug_test_addr(), socket_read(), and udptl_debug_test_addr().

{
   const struct ast_sockaddr *a_tmp, *b_tmp;
   struct ast_sockaddr ipv4_mapped;
   const struct in_addr *ip4a, *ip4b;
   const struct in6_addr *ip6a, *ip6b;
   int ret = -1;

   a_tmp = a;
   b_tmp = b;

   if (a_tmp->len != b_tmp->len) {
      if (ast_sockaddr_ipv4_mapped(a, &ipv4_mapped)) {
         a_tmp = &ipv4_mapped;
      } else if (ast_sockaddr_ipv4_mapped(b, &ipv4_mapped)) {
         b_tmp = &ipv4_mapped;
      }
   }

   if (a->len < b->len) {
      ret = -1;
   } else if (a->len > b->len) {
      ret = 1;
   }

   switch (a_tmp->ss.ss_family) {
   case AF_INET:
      ip4a = &((const struct sockaddr_in*)&a_tmp->ss)->sin_addr;
      ip4b = &((const struct sockaddr_in*)&b_tmp->ss)->sin_addr;
      ret = memcmp(ip4a, ip4b, sizeof(*ip4a));
      break;
   case AF_INET6:
      ip6a = &((const struct sockaddr_in6*)&a_tmp->ss)->sin6_addr;
      ip6b = &((const struct sockaddr_in6*)&b_tmp->ss)->sin6_addr;
      ret = memcmp(ip6a, ip6b, sizeof(*ip6a));
      break;
   }
   return ret;
}

ast_sockaddr_hash()

int ast_sockaddr_hash

(

const struct ast_sockaddr *

addr

)

Computes a hash value from the address. The port is ignored.

Since

1.8

Return values

0	Unknown address family
other	A 32-bit hash derived from the address

Definition at line 548 of file netsock2.c.

References ast_log, LOG_ERROR, and ast_sockaddr::ss.

Referenced by addr_range_hash_cb(), peer_iphash_cb(), peercnt_hash_cb(), and threadt_hash_cb().

{
   /*
    * For IPv4, return the IP address as-is. For IPv6, return the last 32
    * bits.
    */
   switch (addr->ss.ss_family) {
   case AF_INET:
      return ((const struct sockaddr_in *)&addr->ss)->sin_addr.s_addr;
   case AF_INET6:
      return ((uint32_t *)&((const struct sockaddr_in6 *)&addr->ss)->sin6_addr)[3];
   default:
      ast_log(LOG_ERROR, "Unknown address family '%d'.\n",
         addr->ss.ss_family);
      return 0;
   }
}

ast_sockaddr_ipv4()

uint32_t ast_sockaddr_ipv4

(

const struct ast_sockaddr *

addr

)

Get an IPv4 address of an ast_sockaddr.

Since

1.8

Warning

You should rarely need this function. Only use if you know what you're doing.

Returns

IPv4 address in network byte order

Definition at line 491 of file netsock2.c.

References ast_sockaddr::ss.

Referenced by ast_sockaddr_is_ipv4_multicast(), and multicast_send_control_packet().

{
   const struct sockaddr_in *sin = (struct sockaddr_in *)&addr->ss;
   return ntohl(sin->sin_addr.s_addr);
}

ast_sockaddr_ipv4_mapped()

int ast_sockaddr_ipv4_mapped	(	const struct ast_sockaddr *	addr,
		struct ast_sockaddr *	ast_mapped
	)

Convert an IPv4-mapped IPv6 address into an IPv4 address.

Warning

You should rarely need this function. Only call this if you know what you're doing.

Parameters

addr	The IPv4-mapped address to convert
ast_mapped	The resulting IPv4 address

Return values

0	Unable to make the conversion
1	Successful conversion

Definition at line 37 of file netsock2.c.

References ast_sockaddr_from_sin, ast_sockaddr_is_ipv4_mapped(), ast_sockaddr_is_ipv6(), and ast_sockaddr::ss.

Referenced by append_ha_core(), ast_apply_ha(), ast_rtcp_read(), ast_rtp_read(), ast_sockaddr_cidr_bits(), ast_sockaddr_cmp(), ast_sockaddr_cmp_addr(), and ast_sockaddr_stringify_fmt().

{
   const struct sockaddr_in6 *sin6;
   struct sockaddr_in sin4;

   if (!ast_sockaddr_is_ipv6(addr)) {
      return 0;
   }

   if (!ast_sockaddr_is_ipv4_mapped(addr)) {
      return 0;
   }

   sin6 = (const struct sockaddr_in6*)&addr->ss;

   memset(&sin4, 0, sizeof(sin4));
   sin4.sin_family = AF_INET;
   sin4.sin_port = sin6->sin6_port;
   sin4.sin_addr.s_addr = ((uint32_t *)&sin6->sin6_addr)[3];

   ast_sockaddr_from_sin(ast_mapped, &sin4);

   return 1;
}

ast_sockaddr_is_any()

int ast_sockaddr_is_any

(

const struct ast_sockaddr *

addr

)

Determine if the address type is unspecified, or "any" address.

Since

1.8

For IPv4, this would be the address 0.0.0.0, and for IPv6, this would be the address ::. The port number is ignored.

Return values

1	This is an "any" address
0	This is not an "any" address

Definition at line 534 of file netsock2.c.

References ast_sockaddr_is_ipv4(), ast_sockaddr_is_ipv6(), and ast_sockaddr::ss.

Referenced by ast_find_ourip(), ast_set_qos(), ast_sip_ouraddrfor(), ast_tcptls_client_create(), get_address_family_filter(), get_our_media_address(), negotiate_incoming_sdp_stream(), reload_config(), rtp_add_candidates_to_ice(), sip_show_settings(), and sockaddr_is_null_or_any().

{
   union {
      struct sockaddr_storage ss;
      struct sockaddr_in sin;
      struct sockaddr_in6 sin6;
   } tmp_addr = {
      .ss = addr->ss,
   };

   return (ast_sockaddr_is_ipv4(addr) && (tmp_addr.sin.sin_addr.s_addr == INADDR_ANY)) ||
       (ast_sockaddr_is_ipv6(addr) && IN6_IS_ADDR_UNSPECIFIED(&tmp_addr.sin6.sin6_addr));
}

ast_sockaddr_is_ipv4()

int ast_sockaddr_is_ipv4

(

const struct ast_sockaddr *

addr

)

Determine if the address is an IPv4 address.

Since

1.8

Warning

You should rarely need this function. Only use if you know what you're doing.

Return values

1	This is an IPv4 address
0	This is an IPv6 or IPv4-mapped IPv6 address

Definition at line 497 of file netsock2.c.

References ast_sockaddr::len, and ast_sockaddr::ss.

Referenced by append_ha_core(), ast_apply_ha(), ast_json_ipaddr(), ast_rtcp_read(), ast_rtp_ice_turn_request(), ast_rtp_prop_set(), ast_rtp_read(), ast_sockaddr_apply_netmask(), ast_sockaddr_is_any(), dump_addr(), dundi_xmit(), hep_queue_cb(), jingle_interpret_ice_udp_transport(), load_module(), negotiate_incoming_sdp_stream(), rtp_add_candidates_to_ice(), and rtp_allocate_transport().

{
   /*
    * Test addr->len first to be tolerant of an ast_sockaddr_setnull()
    * addr.  In that case addr->len might be the only value initialized.
    */
   return addr->len == sizeof(struct sockaddr_in)
      && addr->ss.ss_family == AF_INET;
}

ast_sockaddr_is_ipv4_mapped()

int ast_sockaddr_is_ipv4_mapped

(

const struct ast_sockaddr *

addr

)

Determine if this is an IPv4-mapped IPv6 address.

Since

1.8

Warning

You should rarely need this function. Only use if you know what you're doing.

Return values

1	This is an IPv4-mapped IPv6 address.
0	This is not an IPv4-mapped IPv6 address.

Definition at line 507 of file netsock2.c.

References ast_sockaddr::len, and ast_sockaddr::ss.

Referenced by add_sdp(), ast_apply_ha(), ast_json_ipaddr(), ast_sip_ouraddrfor(), ast_sockaddr_ipv4_mapped(), build_peer(), and dump_addr().

{
   const struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)&addr->ss;
   return addr->len && IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr);
}

ast_sockaddr_is_ipv4_multicast()

int ast_sockaddr_is_ipv4_multicast

(

const struct ast_sockaddr *

addr

)

Determine if an IPv4 address is a multicast address.

Since

10.0

Parameters

addr	the address to check

This function checks if an address is in the 224.0.0.0/4 network block.

Returns

non-zero if this is a multicast address

Definition at line 513 of file netsock2.c.

References ast_sockaddr_ipv4().

Referenced by process_via().

{
   return ((ast_sockaddr_ipv4(addr) & 0xf0000000) == 0xe0000000);
}

ast_sockaddr_is_ipv6()

int ast_sockaddr_is_ipv6

(

const struct ast_sockaddr *

addr

)

Determine if this is an IPv6 address.

Since

1.8

Warning

You should rarely need this function. Only use if you know what you're doing.

Return values

1	This is an IPv6 or IPv4-mapped IPv6 address.
0	This is an IPv4 address.

Definition at line 524 of file netsock2.c.

References ast_sockaddr::len, and ast_sockaddr::ss.

Referenced by add_sdp(), ast_apply_ha(), ast_netsock_bindaddr(), ast_ouraddrfor(), ast_rtp_prop_set(), ast_set_qos(), ast_sip_ouraddrfor(), ast_sockaddr_apply_netmask(), ast_sockaddr_ipv4_mapped(), ast_sockaddr_is_any(), ast_sockaddr_is_ipv6_link_local(), ast_tcptls_client_create(), ast_tcptls_server_start(), ast_udptl_new_with_bindaddr(), build_peer(), get_address_family_filter(), hepv3_data_alloc(), load_module(), multicast_send_control_packet(), negotiate_incoming_sdp_stream(), reload_config(), rtp_allocate_transport(), set_host_ipaddr(), and sip_show_settings().

{
   /*
    * Test addr->len first to be tolerant of an ast_sockaddr_setnull()
    * addr.  In that case addr->len might be the only value initialized.
    */
   return addr->len == sizeof(struct sockaddr_in6)
      && addr->ss.ss_family == AF_INET6;
}

ast_sockaddr_is_ipv6_link_local()

int ast_sockaddr_is_ipv6_link_local

(

const struct ast_sockaddr *

addr

)

Determine if this is a link-local IPv6 address.

Since

1.8

Warning

You should rarely need this function. Only use if you know what you're doing.

Return values

1	This is a link-local IPv6 address.
0	This is link-local IPv6 address.

Definition at line 518 of file netsock2.c.

References ast_sockaddr_is_ipv6(), and ast_sockaddr::ss.

Referenced by ast_sockaddr_stringify_fmt().

{
   const struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)&addr->ss;
   return ast_sockaddr_is_ipv6(addr) && IN6_IS_ADDR_LINKLOCAL(&sin6->sin6_addr);
}

ast_sockaddr_parse()

int ast_sockaddr_parse	(	struct ast_sockaddr *	addr,
		const char *	str,
		int	flags
	)

Parse an IPv4 or IPv6 address string.

Since

1.8

Parses a string containing an IPv4 or IPv6 address followed by an optional port (separated by a colon) into a struct ast_sockaddr. The allowed formats are the following:

a.b.c.d a.b.c.d:port a:b:c:...:d [a:b:c:...:d]

Host names are NOT allowed.

Parameters

[out]	addr	The resulting ast_sockaddr. This MAY be NULL from functions that are performing validity checks only, e.g. ast_parse_arg().
	str	The string to parse
	flags	If set to zero, a port MAY be present. If set to PARSE_PORT_IGNORE, a port MAY be present but will be ignored. If set to PARSE_PORT_REQUIRE, a port MUST be present. If set to PARSE_PORT_FORBID, a port MUST NOT be present.

Return values

1	Success
0	Failure

Definition at line 230 of file netsock2.c.

References ast_log, ast_sockaddr_split_hostport(), ast_strdupa, host, ast_sockaddr::len, LOG_ERROR, LOG_WARNING, NULL, S_OR, and ast_sockaddr::ss.

Referenced by __init_manager(), append_ha_core(), apply_acl(), apply_endpoint_acl(), ast_netsock_bind(), ast_parse_arg(), ast_rtp_ice_add_cand(), ast_rtp_ice_turn_request(), ast_sip_get_transport_name(), ast_sockaddr_stringify_port(), AST_TEST_DEFINE(), build_peer(), change_outgoing_sdp_stream_media_address(), corosync_node_alloc(), create_rtp(), evt_gen_auth_method_not_allowed(), evt_gen_chal_resp_failed(), evt_gen_chal_sent(), evt_gen_failed_acl(), evt_gen_inval_acct_id(), evt_gen_inval_password(), evt_gen_inval_transport(), evt_gen_load_avg(), evt_gen_mem_limit(), evt_gen_req_bad_format(), evt_gen_req_no_support(), evt_gen_req_not_allowed(), evt_gen_session_limit(), evt_gen_successful_auth(), evt_gen_unexpected_addr(), handle_cli_rtp_drop_incoming_packets(), internal_dnsmgr_lookup(), ip_identify(), ip_identify_match_handler(), jingle_alloc(), jingle_enable_video(), jingle_interpret_google_transport(), jingle_interpret_ice_udp_transport(), load_module(), logging_on_rx_msg(), logging_on_tx_msg(), multicast_rtp_request(), peer_set_srcaddr(), pjsip_enable_logger_host(), pjsip_log_test_addr(), process_ice_attributes(), process_nat(), process_sdp_a_ice(), proxy_update(), realtime_peer(), reg_source_db(), reload_config(), rtcp_do_debug_ip(), rtcp_message_handler(), rtp_do_debug_ip(), security_event_populate(), session_outgoing_nat_hook(), set_config(), sip_sanitized_host(), sip_uri_domain_cmp(), test_init_rtp_instances(), unicast_rtp_request(), and update_address_with_ice_candidate().

{
   struct addrinfo hints;
   struct addrinfo   *res;
   char *s;
   char *host;
   char *port;
   int   e;

   s = ast_strdupa(str);
   if (!ast_sockaddr_split_hostport(s, &host, &port, flags)) {
      return 0;
   }

   memset(&hints, 0, sizeof(hints));
   /* Hint to get only one entry from getaddrinfo */
   hints.ai_socktype = SOCK_DGRAM;

#ifdef AI_NUMERICSERV
   hints.ai_flags = AI_NUMERICHOST | AI_NUMERICSERV;
#else
   hints.ai_flags = AI_NUMERICHOST;
#endif
   if ((e = getaddrinfo(host, port, &hints, &res))) {
      if (e != EAI_NONAME) { /* if this was just a host name rather than a ip address, don't print error */
         ast_log(LOG_ERROR, "getaddrinfo(\"%s\", \"%s\", ...): %s\n",
            host, S_OR(port, "(null)"), gai_strerror(e));
      }
      return 0;
   }

   /*
    * I don't see how this could be possible since we're not resolving host
    * names. But let's be careful...
    */
   if (res->ai_next != NULL) {
      ast_log(LOG_WARNING, "getaddrinfo() returned multiple "
         "addresses. Ignoring all but the first.\n");
   }

   if (addr) {
      addr->len = res->ai_addrlen;
      memcpy(&addr->ss, res->ai_addr, addr->len);
   }

   freeaddrinfo(res);

   return 1;
}

ast_sockaddr_resolve()

int ast_sockaddr_resolve	(	struct ast_sockaddr **	addrs,
		const char *	str,
		int	flags,
		int	family
	)

Parses a string with an IPv4 or IPv6 address and place results into an array.

Since

1.8

Parses a string containing a host name or an IPv4 or IPv6 address followed by an optional port (separated by a colon). The result is returned into a array of struct ast_sockaddr. Allowed formats for str are the following:

hostname:port host.example.com:port a.b.c.d a.b.c.d:port a:b:c:...:d [a:b:c:...:d]

Parameters

[out]	addrs	The resulting array of ast_sockaddrs
	str	The string to parse
	flags	If set to zero, a port MAY be present. If set to PARSE_PORT_IGNORE, a port MAY be present but will be ignored. If set to PARSE_PORT_REQUIRE, a port MUST be present. If set to PARSE_PORT_FORBID, a port MUST NOT be present.
	family	Only addresses of the given family will be returned. Use 0 or AST_AF_UNSPEC to get addresses of all families.

Return values

0	Failure
non-zero	The number of elements in addrs array.

Definition at line 280 of file netsock2.c.

References ast_log, ast_malloc, ast_sockaddr_split_hostport(), ast_strdupa, cleanup(), host, LOG_ERROR, NULL, and S_OR.

Referenced by __ast_http_load(), app_exec(), apply_negotiated_sdp_stream(), ast_audiosocket_connect(), ast_sockaddr_resolve_first_af(), ast_sockaddr_stringify_port(), build_peer(), extract_contact_addr(), get_ipaddress(), handle_cli_udptl_set_debug(), ip_identify_match_host_lookup(), launch_netscript(), negotiate_incoming_sdp_stream(), populate_addr(), realtime_peer(), realtime_peer_by_name(), realtime_user(), resolve_first(), and websocket_client_args_create().

{
   struct addrinfo hints, *res, *ai;
   char *s, *host, *port;
   int   e, i, res_cnt;

   if (!str) {
      *addrs = NULL;
      return 0;
   }

   s = ast_strdupa(str);
   if (!ast_sockaddr_split_hostport(s, &host, &port, flags)) {
      *addrs = NULL;
      return 0;
   }

   memset(&hints, 0, sizeof(hints));
   hints.ai_family = family;
   hints.ai_socktype = SOCK_DGRAM;

   if ((e = getaddrinfo(host, port, &hints, &res))) {
      ast_log(LOG_ERROR, "getaddrinfo(\"%s\", \"%s\", ...): %s\n",
         host, S_OR(port, "(null)"), gai_strerror(e));
      *addrs = NULL;
      return 0;
   }

   res_cnt = 0;
   for (ai = res; ai; ai = ai->ai_next) {
      res_cnt++;
   }

   if (res_cnt == 0) {
      *addrs = NULL;
      goto cleanup;
   }

   if ((*addrs = ast_malloc(res_cnt * sizeof(struct ast_sockaddr))) == NULL) {
      res_cnt = 0;
      goto cleanup;
   }

   i = 0;
   for (ai = res; ai; ai = ai->ai_next) {
      (*addrs)[i].len = ai->ai_addrlen;
      memcpy(&(*addrs)[i].ss, ai->ai_addr, ai->ai_addrlen);
      ++i;
   }

cleanup:
   freeaddrinfo(res);
   return res_cnt;
}

ast_sockaddr_resolve_first_af()

int ast_sockaddr_resolve_first_af	(	struct ast_sockaddr *	addr,
		const char *	name,
		int	flag,
		int	family
	)

Pulls first resolved address and returns it.

Return the first entry from ast_sockaddr_resolve filtered by address family.

Definition at line 337 of file netsock2.c.

References ast_debug, ast_free, ast_sockaddr_copy(), and ast_sockaddr_resolve().

Referenced by ast_sip_ouraddrfor(), ast_sockaddr_resolve_first(), ast_sockaddr_resolve_first_transport(), ast_sockaddr_stringify_port(), audiosocket_request(), hepv3_data_alloc(), pjsip_enable_logger_host(), process_sdp_c(), reload_config(), and sip_do_debug_ip().

{
   struct ast_sockaddr *addrs;
   int addrs_cnt;

   addrs_cnt = ast_sockaddr_resolve(&addrs, name, flag, family);
   if (addrs_cnt <= 0) {
      return 1;
   }
   if (addrs_cnt > 1) {
      ast_debug(1, "Multiple addresses resolving %s, using the first one only\n", name);
   }

   ast_sockaddr_copy(addr, &addrs[0]);

   ast_free(addrs);
   return 0;
}

ast_sockaddr_split_hostport()

int ast_sockaddr_split_hostport	(	char *	str,
		char **	host,
		char **	port,
		int	flags
	)

Splits a string into its host and port components.

Since

1.8

Parameters

[in]	str	The string to parse. May be modified by writing a NUL at the end of the host part.
[out]	host	Pointer to the host component within str.
[out]	port	Pointer to the port component within str.
	flags	If set to zero, a port MAY be present. If set to PARSE_PORT_IGNORE, a port MAY be present but will be ignored. If set to PARSE_PORT_REQUIRE, a port MUST be present. If set to PARSE_PORT_FORBID, a port MUST NOT be present.

Return values

1	Success
0	Failure

Definition at line 164 of file netsock2.c.

References ast_debug, ast_log, LOG_WARNING, NULL, PARSE_PORT_FORBID, PARSE_PORT_IGNORE, PARSE_PORT_MASK, PARSE_PORT_REQUIRE, and str.

Referenced by ast_ari_channels_external_media(), ast_sockaddr_parse(), ast_sockaddr_resolve(), ast_sockaddr_stringify_port(), extract_host_from_hostport(), peer_set_srcaddr(), rtcp_do_debug_ip(), rtp_do_debug_ip(), setup_stunaddr(), sip_parse_host(), and unicast_rtp_request().

{
   char *s = str;
   char *orig_str = str;/* Original string in case the port presence is incorrect. */
   char *host_end = NULL;/* Delay terminating the host in case the port presence is incorrect. */

   ast_debug(5, "Splitting '%s' into...\n", str);
   *host = NULL;
   *port = NULL;
   if (*s == '[') {
      *host = ++s;
      for (; *s && *s != ']'; ++s) {
      }
      if (*s == ']') {
         host_end = s;
         ++s;
      }
      if (*s == ':') {
         *port = s + 1;
      }
   } else {
      *host = s;
      for (; *s; ++s) {
         if (*s == ':') {
            if (*port) {
               *port = NULL;
               break;
            } else {
               *port = s;
            }
         }
      }
      if (*port) {
         host_end = *port;
         ++*port;
      }
   }

   switch (flags & PARSE_PORT_MASK) {
   case PARSE_PORT_IGNORE:
      *port = NULL;
      break;
   case PARSE_PORT_REQUIRE:
      if (*port == NULL) {
         ast_log(LOG_WARNING, "Port missing in %s\n", orig_str);
         return 0;
      }
      break;
   case PARSE_PORT_FORBID:
      if (*port != NULL) {
         ast_log(LOG_WARNING, "Port disallowed in %s\n", orig_str);
         return 0;
      }
      break;
   }

   /* Can terminate the host string now if needed. */
   if (host_end) {
      *host_end = '\0';
   }
   ast_debug(5, "...host '%s' and port '%s'.\n", *host, *port ? *port : "");
   return 1;
}

ast_sockaddr_stringify_fmt()

char* ast_sockaddr_stringify_fmt	(	const struct ast_sockaddr *	addr,
		int	format
	)

Convert a socket address to a string.

Since

1.8

This will be of the form a.b.c.d:xyz for IPv4 and [a:b:c:...:d]:xyz for IPv6.

This function is thread-safe. The returned string is on static thread-specific storage.

Parameters

addr	The input to be stringified
format	one of the following: AST_SOCKADDR_STR_DEFAULT: a.b.c.d:xyz for IPv4 [a:b:c:...:d]:xyz for IPv6. AST_SOCKADDR_STR_ADDR: address only a.b.c.d for IPv4 a:b:c:...:d for IPv6. AST_SOCKADDR_STR_HOST: address only, suitable for a URL a.b.c.d for IPv4 [a:b:c:...:d] for IPv6. AST_SOCKADDR_STR_PORT: port only

Note

The string pointer returned by this function will point to a string that will be changed whenever any form of ast_sockaddr_stringify_fmt is called on that thread. Because of this, it is important that if you use this function, you use the string before another use of this function is made elsewhere in the same thread. The easiest way to accomplish this is by immediately copying the string to a buffer with something like ast_strdupa.

Return values

(null)	addr is null
""	An error occurred during processing
string	The stringified form of the address

Definition at line 65 of file netsock2.c.

References ast_log, ast_sockaddr_ipv4_mapped(), ast_sockaddr_is_ipv6_link_local(), ast_sockaddr_isnull(), AST_SOCKADDR_STR_ADDR, AST_SOCKADDR_STR_DEFAULT, AST_SOCKADDR_STR_FORMAT_MASK, AST_SOCKADDR_STR_HOST, AST_SOCKADDR_STR_PORT, AST_SOCKADDR_STR_REMOTE, ast_sockaddr_stringify_buf, ast_str_buffer(), ast_str_set(), ast_str_thread_get(), host, ast_sockaddr::len, LOG_ERROR, NULL, ast_sockaddr::ss, and str.

Referenced by ast_sockaddr_stringify(), ast_sockaddr_stringify_addr(), ast_sockaddr_stringify_addr_remote(), ast_sockaddr_stringify_host(), ast_sockaddr_stringify_host_remote(), ast_sockaddr_stringify_port(), ast_sockaddr_stringify_remote(), create_outgoing_sdp_stream(), and statsd_init().

{
   struct ast_sockaddr sa_ipv4;
   const struct ast_sockaddr *sa_tmp;
   char host[NI_MAXHOST];
   char port[NI_MAXSERV];
   struct ast_str *str;
   int e;
   static const size_t size = sizeof(host) - 1 + sizeof(port) - 1 + 4;


   if (ast_sockaddr_isnull(sa)) {
      return "(null)";
   }

   if (!(str = ast_str_thread_get(&ast_sockaddr_stringify_buf, size))) {
      return "";
   }

   if (ast_sockaddr_ipv4_mapped(sa, &sa_ipv4)) {
      sa_tmp = &sa_ipv4;
   } else {
      sa_tmp = sa;
   }

   if ((e = getnameinfo((struct sockaddr *)&sa_tmp->ss, sa_tmp->len,
              format & AST_SOCKADDR_STR_ADDR ? host : NULL,
              format & AST_SOCKADDR_STR_ADDR ? sizeof(host) : 0,
              format & AST_SOCKADDR_STR_PORT ? port : 0,
              format & AST_SOCKADDR_STR_PORT ? sizeof(port): 0,
              NI_NUMERICHOST | NI_NUMERICSERV))) {
      ast_log(LOG_ERROR, "getnameinfo(): %s\n", gai_strerror(e));
      return "";
   }

   if ((format & AST_SOCKADDR_STR_REMOTE) == AST_SOCKADDR_STR_REMOTE) {
      char *p;
      if (ast_sockaddr_is_ipv6_link_local(sa) && (p = strchr(host, '%'))) {
         *p = '\0';
      }
   }

   switch ((format & AST_SOCKADDR_STR_FORMAT_MASK))  {
   case AST_SOCKADDR_STR_DEFAULT:
      ast_str_set(&str, 0, sa_tmp->ss.ss_family == AF_INET6 ?
            "[%s]:%s" : "%s:%s", host, port);
      break;
   case AST_SOCKADDR_STR_ADDR:
      ast_str_set(&str, 0, "%s", host);
      break;
   case AST_SOCKADDR_STR_HOST:
      ast_str_set(&str, 0,
             sa_tmp->ss.ss_family == AF_INET6 ? "[%s]" : "%s", host);
      break;
   case AST_SOCKADDR_STR_PORT:
      ast_str_set(&str, 0, "%s", port);
      break;
   default:
      ast_log(LOG_ERROR, "Invalid format\n");
      return "";
   }

   return ast_str_buffer(str);
}

ast_transport2str()

const char* ast_transport2str

(

enum ast_transport

transport

)

Returns a string representation of an ast_transport.

Since

12.3

Return values

Name	of the tranpsort if it is defined
Undefined	if the transport is undefined

Definition at line 566 of file netsock2.c.

References AST_TRANSPORT_TCP, AST_TRANSPORT_TLS, AST_TRANSPORT_UDP, AST_TRANSPORT_WS, and AST_TRANSPORT_WSS.

Referenced by sip_show_channel().

{
   switch (transport) {
   case AST_TRANSPORT_TLS:
      return "TLS";
   case AST_TRANSPORT_UDP:
      return "UDP";
   case AST_TRANSPORT_TCP:
      return "TCP";
   case AST_TRANSPORT_WS:
      return "WS";
   case AST_TRANSPORT_WSS:
      return "WSS";
   }

   return "Undefined";
}

Variable Documentation

ast_sockaddr_stringify_buf

struct ast_threadstorage ast_sockaddr_stringify_buf = { .once = PTHREAD_ONCE_INIT , .key_init = __init_ast_sockaddr_stringify_buf , .custom_init = NULL , }

static

Definition at line 63 of file netsock2.c.

Referenced by ast_sockaddr_stringify_fmt().