Merge "test_res_rtp: Enable FIR and REMB nominal tests."
[asterisk/asterisk.git] / res / res_pjsip_endpoint_identifier_anonymous.c
1 /*
2  * Asterisk -- An open source telephony toolkit.
3  *
4  * Copyright (C) 2013, Digium, Inc.
5  *
6  * Mark Michelson <mmichelson@digium.com>
7  * Joshua Colp <jcolp@digium.com>
8  *
9  * See http://www.asterisk.org for more information about
10  * the Asterisk project. Please do not directly contact
11  * any of the maintainers of this project for assistance;
12  * the project provides a web site, mailing lists and IRC
13  * channels for your use.
14  *
15  * This program is free software, distributed under the terms of
16  * the GNU General Public License Version 2. See the LICENSE file
17  * at the top of the source tree.
18  */
19
20 /*** MODULEINFO
21         <depend>pjproject</depend>
22         <depend>res_pjsip</depend>
23         <support_level>core</support_level>
24  ***/
25
26 #include "asterisk.h"
27
28 #include <pjsip.h>
29
30 #include "asterisk/res_pjsip.h"
31 #include "asterisk/module.h"
32
33 static int get_endpoint_details(pjsip_rx_data *rdata, char *domain, size_t domain_size)
34 {
35         pjsip_uri *from = rdata->msg_info.from->uri;
36         pjsip_sip_uri *sip_from;
37         if (!PJSIP_URI_SCHEME_IS_SIP(from) && !PJSIP_URI_SCHEME_IS_SIPS(from)) {
38                 return -1;
39         }
40         sip_from = (pjsip_sip_uri *) pjsip_uri_get_uri(from);
41         ast_copy_pj_str(domain, &sip_from->host, domain_size);
42         return 0;
43 }
44
45 static int find_transport_state_in_use(void *obj, void *arg, int flags)
46 {
47         struct ast_sip_transport_state *transport_state = obj;
48         pjsip_rx_data *rdata = arg;
49
50         if (transport_state->transport == rdata->tp_info.transport
51                 || (transport_state->factory
52                         && !pj_strcmp(&transport_state->factory->addr_name.host, &rdata->tp_info.transport->local_name.host)
53                         && transport_state->factory->addr_name.port == rdata->tp_info.transport->local_name.port)) {
54                 return CMP_MATCH;
55         }
56
57         return 0;
58 }
59
60 #define DOMAIN_NAME_LEN 255
61
62 static struct ast_sip_endpoint *anonymous_identify(pjsip_rx_data *rdata)
63 {
64         char domain_name[DOMAIN_NAME_LEN + 1];
65         struct ast_sip_endpoint *endpoint;
66
67         if (get_endpoint_details(rdata, domain_name, sizeof(domain_name))) {
68                 return NULL;
69         }
70
71         if (!ast_sip_get_disable_multi_domain()) {
72                 struct ast_sip_domain_alias *alias;
73                 struct ao2_container *transport_states;
74                 struct ast_sip_transport_state *transport_state = NULL;
75                 struct ast_sip_transport *transport = NULL;
76                 char id[sizeof("anonymous@") + DOMAIN_NAME_LEN];
77
78                 /* Attempt to find the endpoint given the name and domain provided */
79                 snprintf(id, sizeof(id), "anonymous@%s", domain_name);
80                 endpoint = ast_sorcery_retrieve_by_id(ast_sip_get_sorcery(), "endpoint", id);
81                 if (endpoint) {
82                         goto done;
83                 }
84
85                 /* See if an alias exists for the domain provided */
86                 alias = ast_sorcery_retrieve_by_id(ast_sip_get_sorcery(), "domain_alias",
87                         domain_name);
88                 if (alias) {
89                         snprintf(id, sizeof(id), "anonymous@%s", alias->domain);
90                         ao2_ref(alias, -1);
91                         endpoint = ast_sorcery_retrieve_by_id(ast_sip_get_sorcery(), "endpoint", id);
92                         if (endpoint) {
93                                 goto done;
94                         }
95                 }
96
97                 /* See if the transport this came in on has a provided domain */
98                 if ((transport_states = ast_sip_get_transport_states())
99                         && (transport_state = ao2_callback(transport_states, 0, find_transport_state_in_use, rdata))
100                         && (transport = ast_sorcery_retrieve_by_id(ast_sip_get_sorcery(), "transport", transport_state->id))
101                         && !ast_strlen_zero(transport->domain)) {
102                         snprintf(id, sizeof(id), "anonymous@%s", transport->domain);
103                         endpoint = ast_sorcery_retrieve_by_id(ast_sip_get_sorcery(), "endpoint", id);
104                 }
105                 ao2_cleanup(transport);
106                 ao2_cleanup(transport_state);
107                 ao2_cleanup(transport_states);
108                 if (endpoint) {
109                         goto done;
110                 }
111         }
112
113         /* Fall back to no domain */
114         endpoint = ast_sorcery_retrieve_by_id(ast_sip_get_sorcery(), "endpoint", "anonymous");
115
116 done:
117         if (endpoint) {
118                 ast_debug(3, "Retrieved anonymous endpoint '%s'\n", ast_sorcery_object_get_id(endpoint));
119         }
120         return endpoint;
121 }
122
123 static struct ast_sip_endpoint_identifier anonymous_identifier = {
124         .identify_endpoint = anonymous_identify,
125 };
126
127 static int load_module(void)
128 {
129         ast_sip_register_endpoint_identifier_with_name(&anonymous_identifier, "anonymous");
130         return AST_MODULE_LOAD_SUCCESS;
131 }
132
133 static int unload_module(void)
134 {
135         ast_sip_unregister_endpoint_identifier(&anonymous_identifier);
136         return 0;
137 }
138
139 AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_DEFAULT, "PJSIP Anonymous endpoint identifier",
140         .support_level = AST_MODULE_SUPPORT_CORE,
141         .load = load_module,
142         .unload = unload_module,
143         .requires = "res_pjsip",
144 );