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];
102 } SalStreamDescription;
104 #define SAL_MEDIA_DESCRIPTION_MAX_STREAMS 4
106 typedef struct SalMediaDescription{
112 SalStreamDescription streams[SAL_MEDIA_DESCRIPTION_MAX_STREAMS];
113 } SalMediaDescription;
115 SalMediaDescription *sal_media_description_new();
116 void sal_media_description_ref(SalMediaDescription *md);
117 void sal_media_description_unref(SalMediaDescription *md);
118 bool_t sal_media_description_empty(SalMediaDescription *md);
119 const SalStreamDescription *sal_media_description_find_stream(const SalMediaDescription *md,
120 SalMediaProto proto, SalStreamType type);
122 /*this structure must be at the first byte of the SalOp structure defined by implementors*/
123 typedef struct SalOpBase{
125 char *route; /*or request-uri for REGISTER*/
130 SalMediaDescription *local_media;
131 SalMediaDescription *remote_media;
136 typedef enum SalError{
139 SalErrorFailure, /* see SalReason for more details */
143 typedef enum SalReason{
147 SalReasonTemporarilyUnavailable,
149 SalReasonDoNotDisturb,
155 typedef enum SalPresenceStatus{
159 SalPresenceBerightback,
161 SalPresenceOnthephone,
162 SalPresenceOuttolunch,
163 SalPresenceDonotdisturb,
165 SalPresenceAltService,
168 typedef enum SalSubscribeState{
170 SalSubscribeTerminated
173 typedef void (*SalOnCallReceived)(SalOp *op);
174 typedef void (*SalOnCallRinging)(SalOp *op);
175 typedef void (*SalOnCallAccepted)(SalOp *op);
176 typedef void (*SalOnCallAck)(SalOp *op);
177 typedef void (*SalOnCallUpdated)(SalOp *op);
178 typedef void (*SalOnCallTerminated)(SalOp *op, const char *from);
179 typedef void (*SalOnCallFailure)(SalOp *op, SalError error, SalReason reason, const char *details);
180 typedef void (*SalOnAuthRequested)(SalOp *op, const char *realm, const char *username);
181 typedef void (*SalOnAuthSuccess)(SalOp *op, const char *realm, const char *username);
182 typedef void (*SalOnRegisterSuccess)(SalOp *op, bool_t registered);
183 typedef void (*SalOnRegisterFailure)(SalOp *op, SalError error, SalReason reason, const char *details);
184 typedef void (*SalOnVfuRequest)(SalOp *op);
185 typedef void (*SalOnDtmfReceived)(SalOp *op, char dtmf);
186 typedef void (*SalOnRefer)(Sal *sal, SalOp *op, const char *referto);
187 typedef void (*SalOnTextReceived)(Sal *sal, const char *from, const char *msg);
188 typedef void (*SalOnNotify)(SalOp *op, const char *from, const char *value);
189 typedef void (*SalOnNotifyPresence)(SalOp *op, SalSubscribeState ss, SalPresenceStatus status, const char *msg);
190 typedef void (*SalOnSubscribeReceived)(SalOp *salop, const char *from);
191 typedef void (*SalOnSubscribeClosed)(SalOp *salop, const char *from);
192 typedef void (*SalOnInternalMsg)(Sal *sal, const char *msg);
193 typedef void (*SalOnPingReply)(SalOp *salop);
195 typedef struct SalCallbacks{
196 SalOnCallReceived call_received;
197 SalOnCallRinging call_ringing;
198 SalOnCallAccepted call_accepted;
199 SalOnCallAck call_ack;
200 SalOnCallUpdated call_updated;
201 SalOnCallTerminated call_terminated;
202 SalOnCallFailure call_failure;
203 SalOnAuthRequested auth_requested;
204 SalOnAuthSuccess auth_success;
205 SalOnRegisterSuccess register_success;
206 SalOnRegisterFailure register_failure;
207 SalOnVfuRequest vfu_request;
208 SalOnDtmfReceived dtmf_received;
209 SalOnRefer refer_received;
210 SalOnTextReceived text_received;
212 SalOnNotifyPresence notify_presence;
213 SalOnSubscribeReceived subscribe_received;
214 SalOnSubscribeClosed subscribe_closed;
215 SalOnInternalMsg internal_message;
216 SalOnPingReply ping_reply;
219 typedef struct SalAuthInfo{
226 void sal_set_callbacks(Sal *ctx, const SalCallbacks *cbs);
227 int sal_listen_port(Sal *ctx, const char *addr, int port, SalTransport tr, int is_secure);
228 ortp_socket_t sal_get_socket(Sal *ctx);
229 void sal_set_user_agent(Sal *ctx, const char *user_agent);
230 /*keepalive period in ms*/
231 void sal_set_keepalive_period(Sal *ctx,unsigned int value);
232 void sal_use_session_timers(Sal *ctx, int expires);
233 int sal_iterate(Sal *sal);
234 MSList * sal_get_pending_auths(Sal *sal);
236 /*create an operation */
237 SalOp * sal_op_new(Sal *sal);
239 /*generic SalOp API, working for all operations */
240 Sal *sal_op_get_sal(const SalOp *op);
241 void sal_op_set_contact(SalOp *op, const char *contact);
242 void sal_op_set_route(SalOp *op, const char *route);
243 void sal_op_set_from(SalOp *op, const char *from);
244 void sal_op_set_to(SalOp *op, const char *to);
245 void sal_op_release(SalOp *h);
246 void sal_op_authenticate(SalOp *h, const SalAuthInfo *info);
247 void sal_op_set_user_pointer(SalOp *h, void *up);
248 int sal_op_get_auth_requested(SalOp *h, const char **realm, const char **username);
249 const char *sal_op_get_from(const SalOp *op);
250 const char *sal_op_get_to(const SalOp *op);
251 const char *sal_op_get_contact(const SalOp *op);
252 const char *sal_op_get_route(const SalOp *op);
253 const char *sal_op_get_proxy(const SalOp *op);
254 /*for incoming requests, returns the origin of the packet as a sip uri*/
255 const char *sal_op_get_network_origin(const SalOp *op);
256 void *sal_op_get_user_pointer(const SalOp *op);
259 int sal_call_set_local_media_description(SalOp *h, SalMediaDescription *desc);
260 int sal_call(SalOp *h, const char *from, const char *to);
261 int sal_call_notify_ringing(SalOp *h);
262 int sal_call_accept(SalOp*h);
263 int sal_call_decline(SalOp *h, SalReason reason, const char *redirection /*optional*/);
264 SalMediaDescription * sal_call_get_final_media_description(SalOp *h);
265 int sal_refer(SalOp *h, const char *refer_to);
266 int sal_refer_accept(SalOp *h);
267 int sal_call_send_dtmf(SalOp *h, char dtmf);
268 int sal_call_terminate(SalOp *h);
269 bool_t sal_call_autoanswer_asked(SalOp *op);
272 int sal_register(SalOp *op, const char *proxy, const char *from, int expires);
273 int sal_unregister(SalOp *h);
276 int sal_text_send(SalOp *op, const char *from, const char *to, const char *text);
278 /*presence Subscribe/notify*/
279 int sal_subscribe_presence(SalOp *op, const char *from, const char *to);
280 int sal_unsubscribe(SalOp *op);
281 int sal_subscribe_accept(SalOp *op);
282 int sal_subscribe_decline(SalOp *op);
283 int sal_notify_presence(SalOp *op, SalPresenceStatus status, const char *status_message);
284 int sal_notify_close(SalOp *op);
286 /*presence publish */
287 int sal_publish(SalOp *op, const char *from, const char *to, SalPresenceStatus status);
290 /*ping: main purpose is to obtain its own contact address behind firewalls*/
291 int sal_ping(SalOp *op, const char *from, const char *to);
293 #define payload_type_set_number(pt,n) (pt)->user_data=(void*)((long)n);
294 #define payload_type_get_number(pt) ((int)(long)(pt)->user_data)
297 void sal_get_default_local_ip(Sal *sal, int address_family, char *ip, size_t iplen);
301 void __sal_op_init(SalOp *b, Sal *sal);
302 void __sal_op_set_network_origin(SalOp *op, const char *origin /*a sip uri*/);
303 void __sal_op_free(SalOp *b);