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https://github.com/asterisk/asterisk.git
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1b6e4c1175
Domains themselves can be up to 255 characters long (per RFC 1035), so our current buffer sizes are wholly inadequate for many use cases. Change-Id: If3f30a68307f1365a1fe06bc4b854c62842c9292
137 lines
4.3 KiB
C
137 lines
4.3 KiB
C
/*
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* Asterisk -- An open source telephony toolkit.
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*
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* Copyright (C) 2013, Digium, Inc.
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*
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* Mark Michelson <mmichelson@digium.com>
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* Joshua Colp <jcolp@digium.com>
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*
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* See http://www.asterisk.org for more information about
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* the Asterisk project. Please do not directly contact
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* any of the maintainers of this project for assistance;
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* the project provides a web site, mailing lists and IRC
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* channels for your use.
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*
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* This program is free software, distributed under the terms of
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* the GNU General Public License Version 2. See the LICENSE file
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* at the top of the source tree.
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*/
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/*** MODULEINFO
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<depend>pjproject</depend>
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<depend>res_pjsip</depend>
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<support_level>core</support_level>
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***/
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#include "asterisk.h"
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#include <pjsip.h>
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#include "asterisk/res_pjsip.h"
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#include "asterisk/module.h"
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static int get_endpoint_details(pjsip_rx_data *rdata, char *domain, size_t domain_size)
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{
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pjsip_uri *from = rdata->msg_info.from->uri;
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pjsip_sip_uri *sip_from;
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if (!PJSIP_URI_SCHEME_IS_SIP(from) && !PJSIP_URI_SCHEME_IS_SIPS(from)) {
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return -1;
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}
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sip_from = (pjsip_sip_uri *) pjsip_uri_get_uri(from);
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ast_copy_pj_str(domain, &sip_from->host, domain_size);
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return 0;
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}
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static int find_transport_state_in_use(void *obj, void *arg, int flags)
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{
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struct ast_sip_transport_state *transport_state = obj;
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pjsip_rx_data *rdata = arg;
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if (transport_state && ((transport_state->transport == rdata->tp_info.transport) ||
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(transport_state->factory && !pj_strcmp(&transport_state->factory->addr_name.host, &rdata->tp_info.transport->local_name.host) &&
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transport_state->factory->addr_name.port == rdata->tp_info.transport->local_name.port))) {
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return CMP_MATCH | CMP_STOP;
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}
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return 0;
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}
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#define DOMAIN_NAME_LEN 255
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static struct ast_sip_endpoint *anonymous_identify(pjsip_rx_data *rdata)
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{
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char domain_name[DOMAIN_NAME_LEN + 1];
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struct ast_sip_endpoint *endpoint;
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RAII_VAR(struct ast_sip_domain_alias *, alias, NULL, ao2_cleanup);
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RAII_VAR(struct ao2_container *, transport_states, NULL, ao2_cleanup);
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RAII_VAR(struct ast_sip_transport_state *, transport_state, NULL, ao2_cleanup);
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RAII_VAR(struct ast_sip_transport *, transport, NULL, ao2_cleanup);
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if (get_endpoint_details(rdata, domain_name, sizeof(domain_name))) {
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return NULL;
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}
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if (!ast_sip_get_disable_multi_domain()) {
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char id[sizeof("anonymous@") + DOMAIN_NAME_LEN];
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/* Attempt to find the endpoint given the name and domain provided */
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snprintf(id, sizeof(id), "anonymous@%s", domain_name);
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if ((endpoint = ast_sorcery_retrieve_by_id(ast_sip_get_sorcery(), "endpoint", id))) {
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goto done;
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}
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/* See if an alias exists for the domain provided */
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if ((alias = ast_sorcery_retrieve_by_id(ast_sip_get_sorcery(), "domain_alias", domain_name))) {
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snprintf(id, sizeof(id), "anonymous@%s", alias->domain);
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if ((endpoint = ast_sorcery_retrieve_by_id(ast_sip_get_sorcery(), "endpoint", id))) {
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goto done;
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}
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}
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/* See if the transport this came in on has a provided domain */
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if ((transport_states = ast_sip_get_transport_states())
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&& (transport_state = ao2_callback(transport_states, 0, find_transport_state_in_use, rdata))
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&& (transport = ast_sorcery_retrieve_by_id(ast_sip_get_sorcery(), "transport", transport_state->id))
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&& !ast_strlen_zero(transport->domain)) {
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snprintf(id, sizeof(id), "anonymous@%s", transport->domain);
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if ((endpoint = ast_sorcery_retrieve_by_id(ast_sip_get_sorcery(), "endpoint", id))) {
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goto done;
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}
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}
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}
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/* Fall back to no domain */
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endpoint = ast_sorcery_retrieve_by_id(ast_sip_get_sorcery(), "endpoint", "anonymous");
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done:
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if (endpoint) {
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ast_debug(3, "Retrieved anonymous endpoint '%s'\n", ast_sorcery_object_get_id(endpoint));
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}
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return endpoint;
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}
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static struct ast_sip_endpoint_identifier anonymous_identifier = {
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.identify_endpoint = anonymous_identify,
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};
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static int load_module(void)
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{
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CHECK_PJSIP_MODULE_LOADED();
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ast_sip_register_endpoint_identifier_with_name(&anonymous_identifier, "anonymous");
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return AST_MODULE_LOAD_SUCCESS;
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}
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static int unload_module(void)
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{
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ast_sip_unregister_endpoint_identifier(&anonymous_identifier);
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return 0;
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}
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AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_LOAD_ORDER, "PJSIP Anonymous endpoint identifier",
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.support_level = AST_MODULE_SUPPORT_CORE,
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.load = load_module,
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.unload = unload_module,
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.load_pri = AST_MODPRI_DEFAULT,
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);
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