Asterisk - The Open Source Telephony Project GIT-master-0bf3178
res_pjsip_endpoint_identifier_anonymous.c
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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
33static 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 if (!ast_sip_is_uri_sip_sips(from)) {
37 return -1;
38 }
39 ast_copy_pj_str(domain, ast_sip_pjsip_uri_get_hostname(from), domain_size);
40 return 0;
41}
42
43static int find_transport_state_in_use(void *obj, void *arg, int flags)
44{
45 struct ast_sip_transport_state *transport_state = obj;
46 pjsip_rx_data *rdata = arg;
47
48 if (transport_state->transport == rdata->tp_info.transport
49 || (transport_state->factory
50 && !pj_strcmp(&transport_state->factory->addr_name.host, &rdata->tp_info.transport->local_name.host)
51 && transport_state->factory->addr_name.port == rdata->tp_info.transport->local_name.port)) {
52 return CMP_MATCH;
53 }
54
55 return 0;
56}
57
58#define DOMAIN_NAME_LEN 255
59
60static struct ast_sip_endpoint *anonymous_identify(pjsip_rx_data *rdata)
61{
62 char domain_name[DOMAIN_NAME_LEN + 1];
63 struct ast_sip_endpoint *endpoint;
64
65 if (get_endpoint_details(rdata, domain_name, sizeof(domain_name))) {
66 return NULL;
67 }
68
70 struct ast_sip_domain_alias *alias;
72 struct ast_sip_transport_state *transport_state = NULL;
73 struct ast_sip_transport *transport = NULL;
74 char id[sizeof("anonymous@") + DOMAIN_NAME_LEN];
75
76 /* Attempt to find the endpoint given the name and domain provided */
77 snprintf(id, sizeof(id), "anonymous@%s", domain_name);
78 endpoint = ast_sorcery_retrieve_by_id(ast_sip_get_sorcery(), "endpoint", id);
79 if (endpoint) {
80 goto done;
81 }
82
83 /* See if an alias exists for the domain provided */
84 alias = ast_sorcery_retrieve_by_id(ast_sip_get_sorcery(), "domain_alias",
85 domain_name);
86 if (alias) {
87 snprintf(id, sizeof(id), "anonymous@%s", alias->domain);
88 ao2_ref(alias, -1);
89 endpoint = ast_sorcery_retrieve_by_id(ast_sip_get_sorcery(), "endpoint", id);
90 if (endpoint) {
91 goto done;
92 }
93 }
94
95 /* See if the transport this came in on has a provided domain */
97 && (transport_state = ao2_callback(transport_states, 0, find_transport_state_in_use, rdata))
98 && (transport = ast_sorcery_retrieve_by_id(ast_sip_get_sorcery(), "transport", transport_state->id))
99 && !ast_strlen_zero(transport->domain)) {
100 snprintf(id, sizeof(id), "anonymous@%s", transport->domain);
101 endpoint = ast_sorcery_retrieve_by_id(ast_sip_get_sorcery(), "endpoint", id);
102 }
103 ao2_cleanup(transport);
104 ao2_cleanup(transport_state);
106 if (endpoint) {
107 goto done;
108 }
109 }
110
111 /* Fall back to no domain */
112 endpoint = ast_sorcery_retrieve_by_id(ast_sip_get_sorcery(), "endpoint", "anonymous");
113
114done:
115 if (endpoint) {
116 ast_debug(3, "Retrieved anonymous endpoint '%s'\n", ast_sorcery_object_get_id(endpoint));
117 }
118 return endpoint;
119}
120
123};
124
125static int load_module(void)
126{
129}
130
131static int unload_module(void)
132{
134 return 0;
135}
136
137AST_MODULE_INFO(ASTERISK_GPL_KEY, AST_MODFLAG_DEFAULT, "PJSIP Anonymous endpoint identifier",
138 .support_level = AST_MODULE_SUPPORT_CORE,
139 .load = load_module,
140 .unload = unload_module,
141 .requires = "res_pjsip",
Asterisk main include file. File version handling, generic pbx functions.
@ CMP_MATCH
Definition: astobj2.h:1027
#define ao2_callback(c, flags, cb_fn, arg)
ao2_callback() is a generic function that applies cb_fn() to all objects in a container,...
Definition: astobj2.h:1693
#define ao2_cleanup(obj)
Definition: astobj2.h:1934
#define ao2_ref(o, delta)
Reference/unreference an object and return the old refcount.
Definition: astobj2.h:459
static struct ao2_container * transport_states
#define ast_debug(level,...)
Log a DEBUG message.
Asterisk module definitions.
@ AST_MODFLAG_DEFAULT
Definition: module.h:329
#define AST_MODULE_INFO(keystr, flags_to_set, desc, fields...)
Definition: module.h:557
@ AST_MODULE_SUPPORT_CORE
Definition: module.h:121
#define ASTERISK_GPL_KEY
The text the key() function should return.
Definition: module.h:46
@ AST_MODULE_LOAD_SUCCESS
Definition: module.h:70
struct ao2_container * ast_sip_get_transport_states(void)
Retrieves all transport states.
int ast_sip_is_uri_sip_sips(pjsip_uri *uri)
Check whether a pjsip_uri is SIP/SIPS or not.
Definition: res_pjsip.c:3467
void ast_sip_unregister_endpoint_identifier(struct ast_sip_endpoint_identifier *identifier)
Unregister a SIP endpoint identifier.
Definition: res_pjsip.c:315
void ast_copy_pj_str(char *dest, const pj_str_t *src, size_t size)
Copy a pj_str_t into a standard character buffer.
Definition: res_pjsip.c:2201
unsigned int ast_sip_get_disable_multi_domain(void)
Retrieve the system setting 'disable multi domain'.
int ast_sip_register_endpoint_identifier_with_name(struct ast_sip_endpoint_identifier *identifier, const char *name)
Register a SIP endpoint identifier with a name.
Definition: res_pjsip.c:233
struct ast_sorcery * ast_sip_get_sorcery(void)
Get a pointer to the SIP sorcery structure.
const pj_str_t * ast_sip_pjsip_uri_get_hostname(pjsip_uri *uri)
Get the host portion of the pjsip_uri.
Definition: res_pjsip.c:3496
static struct ast_sip_endpoint * anonymous_identify(pjsip_rx_data *rdata)
static int get_endpoint_details(pjsip_rx_data *rdata, char *domain, size_t domain_size)
static struct ast_sip_endpoint_identifier anonymous_identifier
static int load_module(void)
static int find_transport_state_in_use(void *obj, void *arg, int flags)
static int unload_module(void)
#define NULL
Definition: resample.c:96
const char * ast_sorcery_object_get_id(const void *object)
Get the unique identifier of a sorcery object.
Definition: sorcery.c:2317
void * ast_sorcery_retrieve_by_id(const struct ast_sorcery *sorcery, const char *type, const char *id)
Retrieve an object using its unique identifier.
Definition: sorcery.c:1853
static force_inline int attribute_pure ast_strlen_zero(const char *s)
Definition: strings.h:65
Generic container type.
const ast_string_field domain
Definition: res_pjsip.h:320
An entity responsible for identifying the source of a SIP message.
Definition: res_pjsip.h:1289
struct ast_sip_endpoint *(* identify_endpoint)(pjsip_rx_data *rdata)
Callback used to identify the source of a message. See ast_sip_identify_endpoint for more details.
Definition: res_pjsip.h:1294
An entity with which Asterisk communicates.
Definition: res_pjsip.h:958
Structure for SIP transport information.
Definition: res_pjsip.h:116
struct pjsip_tpfactory * factory
Transport factory.
Definition: res_pjsip.h:120
struct pjsip_transport * transport
Transport itself.
Definition: res_pjsip.h:118
Transport to bind to.
Definition: res_pjsip.h:218
const ast_string_field domain
Definition: res_pjsip.h:238
int done
Definition: test_amihooks.c:48