res_pjsip_endpoint_identifier_anonymous.c File Reference

#include "asterisk.h"
#include <pjsip.h>
#include "asterisk/res_pjsip.h"
#include "asterisk/module.h"

Include dependency graph for res_pjsip_endpoint_identifier_anonymous.c:

Go to the source code of this file.

Macros
#define	DOMAIN_NAME_LEN   255

Functions
static void	__reg_module (void)
static void	__unreg_module (void)
static struct ast_sip_endpoint *	anonymous_identify (pjsip_rx_data *rdata)
struct ast_module *	AST_MODULE_SELF_SYM (void)
static int	find_transport_state_in_use (void *obj, void *arg, int flags)
static int	get_endpoint_details (pjsip_rx_data *rdata, char *domain, size_t domain_size)
static int	load_module (void)
static int	unload_module (void)

Variables
static struct ast_module_info	__mod_info = { .name = AST_MODULE, .flags = AST_MODFLAG_DEFAULT , .description = "PJSIP Anonymous endpoint identifier" , .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, .requires = "res_pjsip", }
static struct ast_sip_endpoint_identifier	anonymous_identifier
static const struct ast_module_info *	ast_module_info = &__mod_info

Macro Definition Documentation

DOMAIN_NAME_LEN

#define DOMAIN_NAME_LEN   255

Definition at line 60 of file res_pjsip_endpoint_identifier_anonymous.c.

Referenced by anonymous_identify().

Function Documentation

__reg_module()

static void __reg_module ( void  )

static

Definition at line 144 of file res_pjsip_endpoint_identifier_anonymous.c.

__unreg_module()

static void __unreg_module ( void  )

static

Definition at line 144 of file res_pjsip_endpoint_identifier_anonymous.c.

anonymous_identify()

static struct ast_sip_endpoint* anonymous_identify ( pjsip_rx_data *  rdata )

static

Definition at line 62 of file res_pjsip_endpoint_identifier_anonymous.c.

References ao2_callback, ao2_cleanup, ao2_ref, ast_debug, ast_sip_get_disable_multi_domain(), ast_sip_get_sorcery(), ast_sip_get_transport_states(), ast_sorcery_object_get_id(), ast_sorcery_retrieve_by_id(), ast_strlen_zero, ast_sip_transport::domain, ast_sip_domain_alias::domain, DOMAIN_NAME_LEN, done, find_transport_state_in_use(), get_endpoint_details(), ast_sip_transport_state::id, NULL, and transport_states.

{
   char domain_name[DOMAIN_NAME_LEN + 1];
   struct ast_sip_endpoint *endpoint;

   if (get_endpoint_details(rdata, domain_name, sizeof(domain_name))) {
      return NULL;
   }

   if (!ast_sip_get_disable_multi_domain()) {
      struct ast_sip_domain_alias *alias;
      struct ao2_container *transport_states;
      struct ast_sip_transport_state *transport_state = NULL;
      struct ast_sip_transport *transport = NULL;
      char id[sizeof("anonymous@") + DOMAIN_NAME_LEN];

      /* Attempt to find the endpoint given the name and domain provided */
      snprintf(id, sizeof(id), "anonymous@%s", domain_name);
      endpoint = ast_sorcery_retrieve_by_id(ast_sip_get_sorcery(), "endpoint", id);
      if (endpoint) {
         goto done;
      }

      /* See if an alias exists for the domain provided */
      alias = ast_sorcery_retrieve_by_id(ast_sip_get_sorcery(), "domain_alias",
         domain_name);
      if (alias) {
         snprintf(id, sizeof(id), "anonymous@%s", alias->domain);
         ao2_ref(alias, -1);
         endpoint = ast_sorcery_retrieve_by_id(ast_sip_get_sorcery(), "endpoint", id);
         if (endpoint) {
            goto done;
         }
      }

      /* See if the transport this came in on has a provided domain */
      if ((transport_states = ast_sip_get_transport_states())
         && (transport_state = ao2_callback(transport_states, 0, find_transport_state_in_use, rdata))
         && (transport = ast_sorcery_retrieve_by_id(ast_sip_get_sorcery(), "transport", transport_state->id))
         && !ast_strlen_zero(transport->domain)) {
         snprintf(id, sizeof(id), "anonymous@%s", transport->domain);
         endpoint = ast_sorcery_retrieve_by_id(ast_sip_get_sorcery(), "endpoint", id);
      }
      ao2_cleanup(transport);
      ao2_cleanup(transport_state);
      ao2_cleanup(transport_states);
      if (endpoint) {
         goto done;
      }
   }

   /* Fall back to no domain */
   endpoint = ast_sorcery_retrieve_by_id(ast_sip_get_sorcery(), "endpoint", "anonymous");

done:
   if (endpoint) {
      ast_debug(3, "Retrieved anonymous endpoint '%s'\n", ast_sorcery_object_get_id(endpoint));
   }
   return endpoint;
}

AST_MODULE_SELF_SYM()

struct ast_module* AST_MODULE_SELF_SYM

(

void

)

Definition at line 144 of file res_pjsip_endpoint_identifier_anonymous.c.

find_transport_state_in_use()

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

static

Definition at line 45 of file res_pjsip_endpoint_identifier_anonymous.c.

References CMP_MATCH, ast_sip_transport_state::factory, and ast_sip_transport_state::transport.

Referenced by anonymous_identify().

{
   struct ast_sip_transport_state *transport_state = obj;
   pjsip_rx_data *rdata = arg;

   if (transport_state->transport == rdata->tp_info.transport
      || (transport_state->factory
         && !pj_strcmp(&transport_state->factory->addr_name.host, &rdata->tp_info.transport->local_name.host)
         && transport_state->factory->addr_name.port == rdata->tp_info.transport->local_name.port)) {
      return CMP_MATCH;
   }

   return 0;
}

get_endpoint_details()

static int get_endpoint_details ( pjsip_rx_data *  rdata, char *  domain, size_t  domain_size  )

static

Definition at line 33 of file res_pjsip_endpoint_identifier_anonymous.c.

References ast_copy_pj_str().

Referenced by anonymous_identify().

{
   pjsip_uri *from = rdata->msg_info.from->uri;
   pjsip_sip_uri *sip_from;
   if (!PJSIP_URI_SCHEME_IS_SIP(from) && !PJSIP_URI_SCHEME_IS_SIPS(from)) {
      return -1;
   }
   sip_from = (pjsip_sip_uri *) pjsip_uri_get_uri(from);
   ast_copy_pj_str(domain, &sip_from->host, domain_size);
   return 0;
}

load_module()

static int load_module ( void  )

static

Definition at line 127 of file res_pjsip_endpoint_identifier_anonymous.c.

References AST_MODULE_LOAD_SUCCESS, and ast_sip_register_endpoint_identifier_with_name().

Referenced by unload_module().

{
   ast_sip_register_endpoint_identifier_with_name(&anonymous_identifier, "anonymous");
   return AST_MODULE_LOAD_SUCCESS;
}

unload_module()

static int unload_module ( void  )

static

Definition at line 133 of file res_pjsip_endpoint_identifier_anonymous.c.

References AST_MODFLAG_DEFAULT, AST_MODULE_INFO(), AST_MODULE_SUPPORT_CORE, ast_sip_unregister_endpoint_identifier(), ASTERISK_GPL_KEY, and load_module().

{
   ast_sip_unregister_endpoint_identifier(&anonymous_identifier);
   return 0;
}

Variable Documentation

__mod_info

struct ast_module_info __mod_info = { .name = AST_MODULE, .flags = AST_MODFLAG_DEFAULT , .description = "PJSIP Anonymous endpoint identifier" , .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, .requires = "res_pjsip", }

static

Definition at line 144 of file res_pjsip_endpoint_identifier_anonymous.c.

anonymous_identifier

struct ast_sip_endpoint_identifier anonymous_identifier

static

Initial value:

= {
   .identify_endpoint = anonymous_identify,
}

Definition at line 123 of file res_pjsip_endpoint_identifier_anonymous.c.

ast_module_info

const struct ast_module_info* ast_module_info = &__mod_info

static

Definition at line 144 of file res_pjsip_endpoint_identifier_anonymous.c.