3 Copyright (C) 2010 Simon MORLAT (simon.morlat@free.fr)
5 This program is free software; you can redistribute it and/or
6 modify it under the terms of the GNU General Public License
7 as published by the Free Software Foundation; either version 2
8 of the License, or (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
21 This header files defines the Signaling Abstraction Layer.
22 The purpose of this layer is too allow experiment different call signaling
23 protocols and implementations under linphone, for example SIP, JINGLE...
29 #include "mediastreamer2/mscommon.h"
33 typedef struct Sal Sal;
37 typedef struct SalOp SalOp;
41 typedef struct SalAddress SalAddress;
43 /* Address manipulation API*/
44 SalAddress * sal_address_new(const char *uri);
45 SalAddress * sal_address_clone(const SalAddress *addr);
46 const char *sal_address_get_scheme(const SalAddress *addr);
47 const char *sal_address_get_display_name(const SalAddress* addr);
48 char *sal_address_get_display_name_unquoted(const SalAddress *addr);
49 const char *sal_address_get_username(const SalAddress *addr);
50 const char *sal_address_get_domain(const SalAddress *addr);
51 void sal_address_set_display_name(SalAddress *addr, const char *display_name);
52 void sal_address_set_username(SalAddress *addr, const char *username);
53 void sal_address_set_domain(SalAddress *addr, const char *host);
54 void sal_address_set_port(SalAddress *addr, const char *port);
55 void sal_address_set_port_int(SalAddress *uri, int port);
56 void sal_address_clean(SalAddress *addr);
57 char *sal_address_as_string(const SalAddress *u);
58 char *sal_address_as_string_uri_only(const SalAddress *u);
59 void sal_address_destroy(SalAddress *u);
65 void sal_uninit(Sal* sal);
66 void sal_set_user_pointer(Sal *sal, void *user_data);
67 void *sal_get_user_pointer(const Sal *sal);
86 typedef struct SalEndpointCandidate{
89 }SalEndpointCandidate;
91 #define SAL_ENDPOINT_CANDIDATE_MAX 2
93 typedef struct SalStreamDescription{
98 MSList *payloads; //<list of PayloadType
101 SalEndpointCandidate candidates[SAL_ENDPOINT_CANDIDATE_MAX];
103 } SalStreamDescription;
105 #define SAL_MEDIA_DESCRIPTION_MAX_STREAMS 4
107 typedef struct SalMediaDescription{
113 SalStreamDescription streams[SAL_MEDIA_DESCRIPTION_MAX_STREAMS];
115 } SalMediaDescription;
117 SalMediaDescription *sal_media_description_new();
118 void sal_media_description_ref(SalMediaDescription *md);
119 void sal_media_description_unref(SalMediaDescription *md);
120 bool_t sal_media_description_empty(SalMediaDescription *md);
121 const SalStreamDescription *sal_media_description_find_stream(const SalMediaDescription *md,
122 SalMediaProto proto, SalStreamType type);
124 /*this structure must be at the first byte of the SalOp structure defined by implementors*/
125 typedef struct SalOpBase{
127 char *route; /*or request-uri for REGISTER*/
132 SalMediaDescription *local_media;
133 SalMediaDescription *remote_media;
138 typedef enum SalError{
141 SalErrorFailure, /* see SalReason for more details */
145 typedef enum SalReason{
149 SalReasonTemporarilyUnavailable,
151 SalReasonDoNotDisturb,
157 typedef enum SalPresenceStatus{
161 SalPresenceBerightback,
163 SalPresenceOnthephone,
164 SalPresenceOuttolunch,
165 SalPresenceDonotdisturb,
167 SalPresenceAltService,
170 typedef enum SalSubscribeState{
172 SalSubscribeTerminated
175 typedef void (*SalOnCallReceived)(SalOp *op);
176 typedef void (*SalOnCallRinging)(SalOp *op);
177 typedef void (*SalOnCallAccepted)(SalOp *op);
178 typedef void (*SalOnCallAck)(SalOp *op);
179 typedef void (*SalOnCallUpdated)(SalOp *op);
180 typedef void (*SalOnCallTerminated)(SalOp *op, const char *from);
181 typedef void (*SalOnCallFailure)(SalOp *op, SalError error, SalReason reason, const char *details, int code);
182 typedef void (*SalOnAuthRequested)(SalOp *op, const char *realm, const char *username);
183 typedef void (*SalOnAuthSuccess)(SalOp *op, const char *realm, const char *username);
184 typedef void (*SalOnRegisterSuccess)(SalOp *op, bool_t registered);
185 typedef void (*SalOnRegisterFailure)(SalOp *op, SalError error, SalReason reason, const char *details);
186 typedef void (*SalOnVfuRequest)(SalOp *op);
187 typedef void (*SalOnDtmfReceived)(SalOp *op, char dtmf);
188 typedef void (*SalOnRefer)(Sal *sal, SalOp *op, const char *referto);
189 typedef void (*SalOnTextReceived)(Sal *sal, const char *from, const char *msg);
190 typedef void (*SalOnNotify)(SalOp *op, const char *from, const char *value);
191 typedef void (*SalOnNotifyPresence)(SalOp *op, SalSubscribeState ss, SalPresenceStatus status, const char *msg);
192 typedef void (*SalOnSubscribeReceived)(SalOp *salop, const char *from);
193 typedef void (*SalOnSubscribeClosed)(SalOp *salop, const char *from);
194 typedef void (*SalOnInternalMsg)(Sal *sal, const char *msg);
195 typedef void (*SalOnPingReply)(SalOp *salop);
197 typedef struct SalCallbacks{
198 SalOnCallReceived call_received;
199 SalOnCallRinging call_ringing;
200 SalOnCallAccepted call_accepted;
201 SalOnCallAck call_ack;
202 SalOnCallUpdated call_updated;
203 SalOnCallTerminated call_terminated;
204 SalOnCallFailure call_failure;
205 SalOnAuthRequested auth_requested;
206 SalOnAuthSuccess auth_success;
207 SalOnRegisterSuccess register_success;
208 SalOnRegisterFailure register_failure;
209 SalOnVfuRequest vfu_request;
210 SalOnDtmfReceived dtmf_received;
211 SalOnRefer refer_received;
212 SalOnTextReceived text_received;
214 SalOnNotifyPresence notify_presence;
215 SalOnSubscribeReceived subscribe_received;
216 SalOnSubscribeClosed subscribe_closed;
217 SalOnInternalMsg internal_message;
218 SalOnPingReply ping_reply;
221 typedef struct SalAuthInfo{
228 void sal_set_callbacks(Sal *ctx, const SalCallbacks *cbs);
229 int sal_listen_port(Sal *ctx, const char *addr, int port, SalTransport tr, int is_secure);
230 ortp_socket_t sal_get_socket(Sal *ctx);
231 void sal_set_user_agent(Sal *ctx, const char *user_agent);
232 /*keepalive period in ms*/
233 void sal_set_keepalive_period(Sal *ctx,unsigned int value);
234 void sal_use_session_timers(Sal *ctx, int expires);
235 int sal_iterate(Sal *sal);
236 MSList * sal_get_pending_auths(Sal *sal);
238 /*create an operation */
239 SalOp * sal_op_new(Sal *sal);
241 /*generic SalOp API, working for all operations */
242 Sal *sal_op_get_sal(const SalOp *op);
243 void sal_op_set_contact(SalOp *op, const char *contact);
244 void sal_op_set_route(SalOp *op, const char *route);
245 void sal_op_set_from(SalOp *op, const char *from);
246 void sal_op_set_to(SalOp *op, const char *to);
247 void sal_op_release(SalOp *h);
248 void sal_op_authenticate(SalOp *h, const SalAuthInfo *info);
249 void sal_op_set_user_pointer(SalOp *h, void *up);
250 int sal_op_get_auth_requested(SalOp *h, const char **realm, const char **username);
251 const char *sal_op_get_from(const SalOp *op);
252 const char *sal_op_get_to(const SalOp *op);
253 const char *sal_op_get_contact(const SalOp *op);
254 const char *sal_op_get_route(const SalOp *op);
255 const char *sal_op_get_proxy(const SalOp *op);
256 /*for incoming requests, returns the origin of the packet as a sip uri*/
257 const char *sal_op_get_network_origin(const SalOp *op);
258 void *sal_op_get_user_pointer(const SalOp *op);
261 int sal_call_set_local_media_description(SalOp *h, SalMediaDescription *desc);
262 int sal_call(SalOp *h, const char *from, const char *to);
263 int sal_call_notify_ringing(SalOp *h);
264 int sal_call_accept(SalOp*h);
265 int sal_call_decline(SalOp *h, SalReason reason, const char *redirection /*optional*/);
266 int sal_call_hold(SalOp *h, bool_t holdon);
267 SalMediaDescription * sal_call_get_final_media_description(SalOp *h);
268 int sal_refer(SalOp *h, const char *refer_to);
269 int sal_refer_accept(SalOp *h);
270 int sal_call_send_dtmf(SalOp *h, char dtmf);
271 int sal_call_terminate(SalOp *h);
272 bool_t sal_call_autoanswer_asked(SalOp *op);
275 int sal_register(SalOp *op, const char *proxy, const char *from, int expires);
276 int sal_unregister(SalOp *h);
279 int sal_text_send(SalOp *op, const char *from, const char *to, const char *text);
281 /*presence Subscribe/notify*/
282 int sal_subscribe_presence(SalOp *op, const char *from, const char *to);
283 int sal_unsubscribe(SalOp *op);
284 int sal_subscribe_accept(SalOp *op);
285 int sal_subscribe_decline(SalOp *op);
286 int sal_notify_presence(SalOp *op, SalPresenceStatus status, const char *status_message);
287 int sal_notify_close(SalOp *op);
289 /*presence publish */
290 int sal_publish(SalOp *op, const char *from, const char *to, SalPresenceStatus status);
293 /*ping: main purpose is to obtain its own contact address behind firewalls*/
294 int sal_ping(SalOp *op, const char *from, const char *to);
296 #define payload_type_set_number(pt,n) (pt)->user_data=(void*)((long)n);
297 #define payload_type_get_number(pt) ((int)(long)(pt)->user_data)
300 void sal_get_default_local_ip(Sal *sal, int address_family, char *ip, size_t iplen);
304 void __sal_op_init(SalOp *b, Sal *sal);
305 void __sal_op_set_network_origin(SalOp *op, const char *origin /*a sip uri*/);
306 void __sal_op_free(SalOp *b);