provision.c File Reference

IAX Provisioning Protocol. More...

#include "asterisk.h"
#include <netdb.h>
#include <netinet/in.h>
#include <netinet/in_systm.h>
#include <netinet/ip.h>
#include <sys/socket.h>
#include "asterisk/config.h"
#include "asterisk/cli.h"
#include "asterisk/lock.h"
#include "asterisk/frame.h"
#include "asterisk/md5.h"
#include "asterisk/astdb.h"
#include "asterisk/utils.h"
#include "asterisk/acl.h"
#include "asterisk/format_cache.h"
#include "asterisk/format_compatibility.h"
#include "include/iax2.h"
#include "include/provision.h"
#include "include/parser.h"

Include dependency graph for provision.c:

Go to the source code of this file.

Data Structures
struct	iax_flag
struct	iax_template
struct	templates

Functions
static int	iax_process_template (struct ast_config *cfg, char *s, char *def)
char *	iax_prov_complete_template (const char *line, const char *word, int pos, int state)
char *	iax_provflags2str (char *buf, int buflen, unsigned int flags)
int	iax_provision_build (struct iax_ie_data *provdata, unsigned int *signature, const char *template, int force)
static void	iax_provision_free_templates (int dead)
static int	iax_provision_init (void)
int	iax_provision_reload (int reload)
int	iax_provision_unload (void)
int	iax_provision_version (unsigned int *version, const char *template, int force)
static const char *	iax_server (unsigned int addr)
static char *	iax_show_provisioning (struct ast_cli_entry *e, int cmd, struct ast_cli_args *a)
static unsigned int	iax_str2flags (const char *buf)
static void	iax_template_copy (struct iax_template *dst, struct iax_template *src)
static struct iax_template *	iax_template_find (const char *s, int allowdead)
static int	iax_template_parse (struct iax_template *cur, struct ast_config *cfg, const char *s, const char *def)
static const char *	ifthere (const char *s)
static unsigned int	prov_ver_calc (struct iax_ie_data *provdata)

Variables
static struct ast_cli_entry	cli_iax2_provision []
static struct iax_flag	iax_flags []
static int	provinit = 0
static ast_mutex_t	provlock = { PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP , NULL, {1, 0} }
static struct templates	templates = { .first = NULL, .last = NULL, }

Detailed Description

IAX Provisioning Protocol.

Author

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

Definition in file provision.c.

Function Documentation

iax_process_template()

static int iax_process_template ( struct ast_config *  cfg, char *  s, char *  def  )

static

Definition at line 387 of file provision.c.

References ast_calloc, ast_copy_string(), AST_LIST_INSERT_HEAD, ast_log, ast_mutex_lock, ast_mutex_unlock, iax_template::dead, iax_template_find(), iax_template_parse(), iax_template::list, LOG_WARNING, iax_template::name, and provlock.

Referenced by iax_provision_reload().

{
   /* Find an already existing one if there */
   struct iax_template *cur;
   int mallocd = 0;

   cur = iax_template_find(s, 1 /* allow dead */);
   if (!cur) {
      mallocd = 1;
      cur = ast_calloc(1, sizeof(*cur));
      if (!cur) {
         ast_log(LOG_WARNING, "Out of memory!\n");
         return -1;
      }
      /* Initialize entry */
      ast_copy_string(cur->name, s, sizeof(cur->name));
      cur->dead = 1;
   }
   if (!iax_template_parse(cur, cfg, s, def))
      cur->dead = 0;

   /* Link if we're mallocd */
   if (mallocd) {
      ast_mutex_lock(&provlock);
      AST_LIST_INSERT_HEAD(&templates, cur, list);
      ast_mutex_unlock(&provlock);
   }
   return 0;
}

iax_prov_complete_template()

char* iax_prov_complete_template	(	const char *	line,
		const char *	word,
		int	pos,
		int	state
	)

Definition at line 179 of file provision.c.

References AST_LIST_TRAVERSE, ast_mutex_lock, ast_mutex_unlock, ast_strdup, c, iax_template::list, iax_template::name, NULL, and provlock.

Referenced by handle_cli_iax2_provision(), and iax_show_provisioning().

{
   struct iax_template *c;
   int which=0;
   char *ret = NULL;
   int wordlen = strlen(word);

   if (pos == 3) {
      ast_mutex_lock(&provlock);
      AST_LIST_TRAVERSE(&templates, c, list) {
         if (!strncasecmp(word, c->name, wordlen) && ++which > state) {
            ret = ast_strdup(c->name);
            break;
         }
      }
      ast_mutex_unlock(&provlock);
   }
   return ret;
}

iax_provflags2str()

char* iax_provflags2str	(	char *	buf,
		int	buflen,
		unsigned int	flags
	)

Definition at line 90 of file provision.c.

References ARRAY_LEN, ast_strlen_zero, buf, iax_flags, iax_template::name, NULL, and value.

Referenced by dump_prov_flags(), and iax_show_provisioning().

{
   int x;

   if (!buf || buflen < 1)
      return NULL;

   buf[0] = '\0';

   for (x = 0; x < ARRAY_LEN(iax_flags); x++) {
      if (flags & iax_flags[x].value){
         strncat(buf, iax_flags[x].name, buflen - strlen(buf) - 1);
         strncat(buf, ",", buflen - strlen(buf) - 1);
      }
   }

   if (!ast_strlen_zero(buf))
      buf[strlen(buf) - 1] = '\0';
   else
      strncpy(buf, "none", buflen - 1);

   return buf;
}

iax_provision_build()

int iax_provision_build	(	struct iax_ie_data *	provdata,
		unsigned int *	signature,
		const char *	template,
		int	force
	)

Definition at line 209 of file provision.c.

References iax_template::altserver, ast_db_put(), ast_mutex_lock, ast_mutex_unlock, iax_template::flags, iax_template::format, iax_ie_append_byte(), iax_ie_append_int(), iax_ie_append_short(), iax_ie_append_str(), iax_template_find(), iax_template::lang, iax_template::pass, iax_template::port, PROV_IE_ALTSERVER, PROV_IE_FLAGS, PROV_IE_FORMAT, PROV_IE_LANG, PROV_IE_PASS, PROV_IE_PORTNO, PROV_IE_PROVVER, PROV_IE_SERVERIP, PROV_IE_SERVERPORT, PROV_IE_TOS, PROV_IE_USER, prov_ver_calc(), provlock, iax_template::server, iax_template::serverport, tmp(), iax_template::tos, and iax_template::user.

Referenced by iax2_provision(), and iax_provision_version().

{
   struct iax_template *cur;
   unsigned int sig;
   char tmp[40];
   memset(provdata, 0, sizeof(*provdata));
   ast_mutex_lock(&provlock);
   cur = iax_template_find(template, 1);
   /* If no match, try searching for '*' */
   if (!cur)
      cur = iax_template_find("*", 1);
   if (cur) {
      /* found it -- add information elements as appropriate */
      if (force || strlen(cur->user))
         iax_ie_append_str(provdata, PROV_IE_USER, cur->user);
      if (force || strlen(cur->pass))
         iax_ie_append_str(provdata, PROV_IE_PASS, cur->pass);
      if (force || strlen(cur->lang))
         iax_ie_append_str(provdata, PROV_IE_LANG, cur->lang);
      if (force || cur->port)
         iax_ie_append_short(provdata, PROV_IE_PORTNO, cur->port);
      if (force || cur->server)
         iax_ie_append_int(provdata, PROV_IE_SERVERIP, cur->server);
      if (force || cur->serverport)
         iax_ie_append_short(provdata, PROV_IE_SERVERPORT, cur->serverport);
      if (force || cur->altserver)
         iax_ie_append_int(provdata, PROV_IE_ALTSERVER, cur->altserver);
      if (force || cur->flags)
         iax_ie_append_int(provdata, PROV_IE_FLAGS, cur->flags);
      if (force || cur->format)
         iax_ie_append_int(provdata, PROV_IE_FORMAT, cur->format);
      if (force || cur->tos)
         iax_ie_append_byte(provdata, PROV_IE_TOS, cur->tos);

      /* Calculate checksum of message so far */
      sig = prov_ver_calc(provdata);
      if (signature)
         *signature = sig;
      /* Store signature */
      iax_ie_append_int(provdata, PROV_IE_PROVVER, sig);
      /* Cache signature for later verification so we need not recalculate all this */
      snprintf(tmp, sizeof(tmp), "v0x%08x", sig);
      ast_db_put("iax/provisioning/cache", template, tmp);
   } else
      ast_db_put("iax/provisioning/cache", template, "u");
   ast_mutex_unlock(&provlock);
   return cur ? 0 : -1;
}

iax_provision_free_templates()

static void iax_provision_free_templates ( int  dead )

static

Definition at line 504 of file provision.c.

References ast_free, AST_LIST_REMOVE_CURRENT, AST_LIST_TRAVERSE_SAFE_BEGIN, AST_LIST_TRAVERSE_SAFE_END, ast_mutex_lock, ast_mutex_unlock, iax_template::dead, iax_template::list, and provlock.

Referenced by iax_provision_reload(), and iax_provision_unload().

{
   struct iax_template *cur;

   /* Drop dead or not (depending on dead) entries while locked */
   ast_mutex_lock(&provlock);
   AST_LIST_TRAVERSE_SAFE_BEGIN(&templates, cur, list) {
      if ((dead && cur->dead) || !dead) {
         AST_LIST_REMOVE_CURRENT(list);
         ast_free(cur);
      }
   }
   AST_LIST_TRAVERSE_SAFE_END;
   ast_mutex_unlock(&provlock);
}

iax_provision_init()

static int iax_provision_init ( void  )

static

Definition at line 497 of file provision.c.

References ast_cli_register_multiple, and provinit.

Referenced by iax_provision_reload().

{
   ast_cli_register_multiple(cli_iax2_provision, sizeof(cli_iax2_provision) / sizeof(struct ast_cli_entry));
   provinit = 1;
   return 0;
}

iax_provision_reload()

int iax_provision_reload

(

int

reload

)

Definition at line 529 of file provision.c.

References ast_category_browse(), ast_config_destroy(), ast_config_load2(), ast_db_deltree(), AST_LIST_TRAVERSE, ast_log, ast_verb, CONFIG_FLAG_FILEUNCHANGED, CONFIG_STATUS_FILEINVALID, CONFIG_STATUS_FILEUNCHANGED, iax_template::dead, iax_process_template(), iax_provision_free_templates(), iax_provision_init(), iax_template::list, LOG_NOTICE, NULL, and provinit.

Referenced by load_module(), and reload_config().

{
   struct ast_config *cfg;
   struct iax_template *cur;
   char *cat;
   int found = 0;
   struct ast_flags config_flags = { reload ? CONFIG_FLAG_FILEUNCHANGED : 0 };
   if (!provinit)
      iax_provision_init();

   cfg = ast_config_load2("iaxprov.conf", "chan_iax2", config_flags);
   if (cfg != NULL && cfg != CONFIG_STATUS_FILEUNCHANGED && cfg != CONFIG_STATUS_FILEINVALID) {
      /* Mark all as dead.  No need for locking */
      AST_LIST_TRAVERSE(&templates, cur, list) {
         cur->dead = 1;
      }

      /* Load as appropriate */
      cat = ast_category_browse(cfg, NULL);
      while(cat) {
         if (strcasecmp(cat, "general")) {
            iax_process_template(cfg, cat, found ? "default" : NULL);
            found++;
            ast_verb(3, "Loaded provisioning template '%s'\n", cat);
         }
         cat = ast_category_browse(cfg, cat);
      }
      ast_config_destroy(cfg);
   } else if (cfg == CONFIG_STATUS_FILEUNCHANGED)
      return 0;
   else
      ast_log(LOG_NOTICE, "No IAX provisioning configuration found, IAX provisioning disabled.\n");

   iax_provision_free_templates(1 /* remove only marked as dead */);

   /* Purge cached signature DB entries */
   ast_db_deltree("iax/provisioning/cache", NULL);
   return 0;
}

iax_provision_unload()

int iax_provision_unload

(

void

)

Definition at line 520 of file provision.c.

References ast_cli_unregister_multiple(), iax_provision_free_templates(), and provinit.

Referenced by __unload_module().

{
   provinit = 0;
   ast_cli_unregister_multiple(cli_iax2_provision, sizeof(cli_iax2_provision) / sizeof(struct ast_cli_entry));
   iax_provision_free_templates(0 /* Remove all templates. */);

   return 0;
}

iax_provision_version()

int iax_provision_version	(	unsigned int *	version,
		const char *	template,
		int	force
	)

Definition at line 258 of file provision.c.

References ast_db_get(), ast_debug, ast_log, ast_mutex_lock, ast_mutex_unlock, iax_provision_build(), LOG_ERROR, provlock, and tmp().

Referenced by check_provisioning().

{
   char tmp[80] = "";
   struct iax_ie_data ied;
   int ret=0;
   memset(&ied, 0, sizeof(ied));

   ast_mutex_lock(&provlock);
   if (ast_db_get("iax/provisioning/cache", template, tmp, sizeof(tmp))) {
      ast_log(LOG_ERROR, "ast_db_get failed to retrieve iax/provisioning/cache/%s\n", template);
   }
   if (sscanf(tmp, "v%30x", version) != 1) {
      if (strcmp(tmp, "u")) {
         ret = iax_provision_build(&ied, version, template, force);
         if (ret)
            ast_debug(1, "Unable to create provisioning packet for '%s'\n", template);
      } else
         ret = -1;
   } else
      ast_debug(1, "Retrieved cached version '%s' = '%08x'\n", tmp, *version);
   ast_mutex_unlock(&provlock);
   return ret;
}

iax_server()

static const char* iax_server ( unsigned int  addr )

static

Definition at line 425 of file provision.c.

References ast_inet_ntoa().

Referenced by iax_show_provisioning().

{
   struct in_addr ia;

   if (!addr)
      return "<unspecified>";

   ia.s_addr = htonl(addr);

   return ast_inet_ntoa(ia);
}

iax_show_provisioning()

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

static

Definition at line 438 of file provision.c.

References iax_template::altserver, ast_cli_args::argc, ast_cli_args::argv, ast_cli(), ast_copy_string(), 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_template::flags, iax_template::format, iax2_getformatname(), iax_prov_complete_template(), iax_provflags2str(), iax_server(), ifthere(), iax_template::lang, ast_cli_args::line, iax_template::list, ast_cli_args::n, iax_template::name, NULL, iax_template::pass, iax_template::port, ast_cli_args::pos, provlock, iax_template::server, iax_template::serverport, iax_template::src, iax_template::tos, ast_cli_entry::usage, iax_template::user, and ast_cli_args::word.

{
   struct iax_template *cur;
   char server[INET_ADDRSTRLEN];
   char alternate[INET_ADDRSTRLEN];
   char flags[80];   /* Has to be big enough for 'flags' too */
   int found = 0;

   switch (cmd) {
   case CLI_INIT:
      e->command = "iax2 show provisioning";
      e->usage =
         "Usage: iax2 show provisioning [template]\n"
         "       Lists all known IAX provisioning templates or a\n"
         "       specific one if specified.\n";
      return NULL;
   case CLI_GENERATE:
      return iax_prov_complete_template(a->line, a->word, a->pos, a->n);
   }

   if ((a->argc != 3) && (a->argc != 4))
      return CLI_SHOWUSAGE;

   ast_mutex_lock(&provlock);
   AST_LIST_TRAVERSE(&templates, cur, list) {
      if ((a->argc == 3) || (!strcasecmp(a->argv[3], cur->name)))  {
         if (found)
            ast_cli(a->fd, "\n");
         ast_copy_string(server, iax_server(cur->server), sizeof(server));
         ast_copy_string(alternate, iax_server(cur->altserver), sizeof(alternate));
         ast_cli(a->fd, "== %s ==\n", cur->name);
         ast_cli(a->fd, "Base Templ:   %s\n", strlen(cur->src) ? cur->src : "<none>");
         ast_cli(a->fd, "Username:     %s\n", ifthere(cur->user));
         ast_cli(a->fd, "Secret:       %s\n", ifthere(cur->pass));
         ast_cli(a->fd, "Language:     %s\n", ifthere(cur->lang));
         ast_cli(a->fd, "Bind Port:    %d\n", cur->port);
         ast_cli(a->fd, "Server:       %s\n", server);
         ast_cli(a->fd, "Server Port:  %d\n", cur->serverport);
         ast_cli(a->fd, "Alternate:    %s\n", alternate);
         ast_cli(a->fd, "Flags:        %s\n", iax_provflags2str(flags, sizeof(flags), cur->flags));
         ast_cli(a->fd, "Format:       %s\n", iax2_getformatname(cur->format));
         ast_cli(a->fd, "TOS:          0x%x\n", cur->tos);
         found++;
      }
   }
   ast_mutex_unlock(&provlock);
   if (!found) {
      if (a->argc == 3)
         ast_cli(a->fd, "No provisioning templates found\n");
      else
         ast_cli(a->fd, "No provisioning template matching '%s' found\n", a->argv[3]);
   }
   return CLI_SUCCESS;
}

iax_str2flags()

static unsigned int iax_str2flags ( const char *  buf )

static

Definition at line 114 of file provision.c.

References ARRAY_LEN, buf, iax_template::flags, iax_flags, len(), iax_template::name, and iax_flag::value.

Referenced by iax_template_parse().

{
   int x;
   int len;
   unsigned int flags = 0;
   char *e;
   while(buf && *buf) {
      e = strchr(buf, ',');
      if (e)
         len = e - buf;
      else
         len = 0;
      for (x = 0; x < ARRAY_LEN(iax_flags); x++) {
         if ((len && !strncasecmp(iax_flags[x].name, buf, len)) ||
             (!len && !strcasecmp(iax_flags[x].name, buf))) {
            flags |= iax_flags[x].value;
            break;
         }
      }
      if (e) {
         buf = e + 1;
         while(*buf && (*buf < 33))
            buf++;
      } else
         break;
   }
   return flags;
}

iax_template_copy()

static void iax_template_copy ( struct iax_template *  dst, struct iax_template *  src  )

static

Definition at line 143 of file provision.c.

References iax_template::altserver, ast_copy_string(), iax_template::dead, iax_template::flags, iax_template::format, iax_template::lang, iax_template::name, iax_template::pass, iax_template::port, iax_template::server, iax_template::src, iax_template::tos, and iax_template::user.

Referenced by iax_template_parse().

{
   if (!dst || !src) {
      return;
   }

   dst->dead = src->dead;
   ast_copy_string(dst->name, src->name, sizeof(dst->name));
   ast_copy_string(dst->src, src->src, sizeof(dst->src));
   ast_copy_string(dst->user, src->user, sizeof(dst->user));
   ast_copy_string(dst->pass, src->pass, sizeof(dst->pass));
   ast_copy_string(dst->lang, src->lang, sizeof(dst->lang));
   dst->port = src->port;
   dst->server = src->server;
   dst->altserver = src->altserver;
   dst->flags = src->flags;
   dst->format = src->format;
   dst->tos = src->tos;
}

iax_template_find()

static struct iax_template* iax_template_find ( const char *  s, int  allowdead  )

static

Definition at line 163 of file provision.c.

References AST_LIST_TRAVERSE, iax_template::dead, iax_template::list, iax_template::name, and NULL.

Referenced by iax_process_template(), iax_provision_build(), and iax_template_parse().

{
   struct iax_template *cur;

   AST_LIST_TRAVERSE(&templates, cur, list) {
      if (!strcasecmp(s, cur->name)) {
         if (!allowdead && cur->dead) {
            cur = NULL;
         }
         break;
      }
   }

   return cur;
}

iax_template_parse()

static int iax_template_parse ( struct iax_template *  cur, struct ast_config *  cfg, const char *  s, const char *  def  )

static

Definition at line 282 of file provision.c.

References iax_template::altserver, ao2_ref, ast_copy_string(), ast_format_cache_get, ast_format_compatibility_format2bitfield(), ast_gethostbyname(), ast_log, ast_mutex_lock, ast_mutex_unlock, ast_str2tos(), ast_variable_browse(), ast_variable_retrieve(), iax_template::dead, iax_template::flags, iax_template::format, hp, IAX_DEFAULT_PORTNO, iax_str2flags(), iax_template_copy(), iax_template_find(), iax_template::lang, ast_variable::lineno, LOG_WARNING, iax_template::name, ast_variable::name, ast_variable::next, NULL, iax_template::pass, iax_template::port, provlock, iax_template::server, iax_template::serverport, iax_template::src, tmp(), iax_template::tos, iax_template::user, and ast_variable::value.

Referenced by iax_process_template().

{
   struct ast_variable *v;
   int foundportno = 0;
   int foundserverportno = 0;
   int x;
   struct in_addr ia;
   struct hostent *hp;
   struct ast_hostent h;
   struct iax_template *src, tmp;
   const char *t;
   if (def) {
      t = ast_variable_retrieve(cfg, s ,"template");
      src = NULL;
      if (t && strlen(t)) {
         src = iax_template_find(t, 0);
         if (!src)
            ast_log(LOG_WARNING, "Unable to find base template '%s' for creating '%s'.  Trying '%s'\n", t, s, def);
         else
            def = t;
      }
      if (!src) {
         src = iax_template_find(def, 0);
         if (!src)
            ast_log(LOG_WARNING, "Unable to locate default base template '%s' for creating '%s', omitting.\n", def, s);
      }
      if (!src)
         return -1;
      ast_mutex_lock(&provlock);
      /* Backup old data */
      iax_template_copy(&tmp, cur);
      /* Restore from src */
      iax_template_copy(cur, src);
      /* Restore important headers */
      memcpy(cur->name, tmp.name, sizeof(cur->name));
      cur->dead = tmp.dead;
      ast_mutex_unlock(&provlock);
   }
   if (def)
      ast_copy_string(cur->src, def, sizeof(cur->src));
   else
      cur->src[0] = '\0';
   v = ast_variable_browse(cfg, s);
   while(v) {
      if (!strcasecmp(v->name, "port") || !strcasecmp(v->name, "serverport")) {
         if ((sscanf(v->value, "%5d", &x) == 1) && (x > 0) && (x < 65535)) {
            if (!strcasecmp(v->name, "port")) {
               cur->port = x;
               foundportno = 1;
            } else {
               cur->serverport = x;
               foundserverportno = 1;
            }
         } else
            ast_log(LOG_WARNING, "Ignoring invalid %s '%s' for '%s' at line %d\n", v->name, v->value, s, v->lineno);
      } else if (!strcasecmp(v->name, "server") || !strcasecmp(v->name, "altserver")) {
         hp = ast_gethostbyname(v->value, &h);
         if (hp) {
            memcpy(&ia, hp->h_addr, sizeof(ia));
            if (!strcasecmp(v->name, "server"))
               cur->server = ntohl(ia.s_addr);
            else
               cur->altserver = ntohl(ia.s_addr);
         } else
            ast_log(LOG_WARNING, "Ignoring invalid %s '%s' for '%s' at line %d\n", v->name, v->value, s, v->lineno);
      } else if (!strcasecmp(v->name, "codec")) {
         struct ast_format *tmpfmt;
         if ((tmpfmt = ast_format_cache_get(v->value))) {
            cur->format = ast_format_compatibility_format2bitfield(tmpfmt);
            ao2_ref(tmpfmt, -1);
         } else
            ast_log(LOG_WARNING, "Ignoring invalid codec '%s' for '%s' at line %d\n", v->value, s, v->lineno);
      } else if (!strcasecmp(v->name, "tos")) {
         if (ast_str2tos(v->value, &cur->tos))
            ast_log(LOG_WARNING, "Invalid tos value at line %d, refer to QoS documentation\n", v->lineno);
      } else if (!strcasecmp(v->name, "user")) {
         ast_copy_string(cur->user, v->value, sizeof(cur->user));
         if (strcmp(cur->user, v->value))
            ast_log(LOG_WARNING, "Truncating username from '%s' to '%s' for '%s' at line %d\n", v->value, cur->user, s, v->lineno);
      } else if (!strcasecmp(v->name, "pass")) {
         ast_copy_string(cur->pass, v->value, sizeof(cur->pass));
         if (strcmp(cur->pass, v->value))
            ast_log(LOG_WARNING, "Truncating password from '%s' to '%s' for '%s' at line %d\n", v->value, cur->pass, s, v->lineno);
      } else if (!strcasecmp(v->name, "language")) {
         ast_copy_string(cur->lang, v->value, sizeof(cur->lang));
         if (strcmp(cur->lang, v->value))
            ast_log(LOG_WARNING, "Truncating language from '%s' to '%s' for '%s' at line %d\n", v->value, cur->lang, s, v->lineno);
      } else if (!strcasecmp(v->name, "flags")) {
         cur->flags = iax_str2flags(v->value);
      } else if (!strncasecmp(v->name, "flags", 5) && strchr(v->name, '+')) {
         cur->flags |= iax_str2flags(v->value);
      } else if (!strncasecmp(v->name, "flags", 5) && strchr(v->name, '-')) {
         cur->flags &= ~iax_str2flags(v->value);
      } else if (strcasecmp(v->name, "template")) {
         ast_log(LOG_WARNING, "Unknown keyword '%s' in definition of '%s' at line %d\n", v->name, s, v->lineno);
      }
      v = v->next;
   }
   if (!foundportno)
      cur->port = IAX_DEFAULT_PORTNO;
   if (!foundserverportno)
      cur->serverport = IAX_DEFAULT_PORTNO;
   return 0;
}

ifthere()

static const char* ifthere ( const char *  s )

static

Definition at line 417 of file provision.c.

Referenced by iax_show_provisioning().

{
   if (strlen(s))
      return s;
   else
      return "<unspecified>";
}

prov_ver_calc()

static unsigned int prov_ver_calc ( struct iax_ie_data *  provdata )

static

Definition at line 199 of file provision.c.

References iax_ie_data::buf, MD5Final(), MD5Init(), MD5Update(), iax_ie_data::pos, and tmp().

Referenced by iax_provision_build().

{
   struct MD5Context md5;
   unsigned int tmp[4];
   MD5Init(&md5);
   MD5Update(&md5, provdata->buf, provdata->pos);
   MD5Final((unsigned char *)tmp, &md5);
   return tmp[0] ^ tmp[1] ^ tmp[2] ^ tmp[3];
}

Variable Documentation

cli_iax2_provision

struct ast_cli_entry cli_iax2_provision[]

static

Initial value:

= {
   { .handler =  iax_show_provisioning , .summary =  "Display iax provisioning" ,},
}

Definition at line 493 of file provision.c.

iax_flags

struct iax_flag iax_flags[]

static

Referenced by iax_provflags2str(), and iax_str2flags().

provinit

int provinit = 0

static

Definition at line 53 of file provision.c.

Referenced by iax_provision_init(), iax_provision_reload(), and iax_provision_unload().

provlock

ast_mutex_t provlock = { PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP , NULL, {1, 0} }

static

Definition at line 74 of file provision.c.

Referenced by iax_process_template(), iax_prov_complete_template(), iax_provision_build(), iax_provision_free_templates(), iax_provision_version(), iax_show_provisioning(), and iax_template_parse().

templates

struct templates templates = { .first = NULL, .last = NULL, }

static

Referenced by action_getconfig(), and action_getconfigjson().