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 const char * sal_address_get_port(const SalAddress *addr);
52 int sal_address_get_port_int(const SalAddress *uri);
54 void sal_address_set_display_name(SalAddress *addr, const char *display_name);
55 void sal_address_set_username(SalAddress *addr, const char *username);
56 void sal_address_set_domain(SalAddress *addr, const char *host);
57 void sal_address_set_port(SalAddress *addr, const char *port);
58 void sal_address_set_port_int(SalAddress *uri, int port);
59 void sal_address_clean(SalAddress *addr);
60 char *sal_address_as_string(const SalAddress *u);
61 char *sal_address_as_string_uri_only(const SalAddress *u);
62 void sal_address_destroy(SalAddress *u);
63 void sal_address_add_param(SalAddress *u,const char* name,const char* value);
68 void sal_uninit(Sal* sal);
69 void sal_set_user_pointer(Sal *sal, void *user_data);
70 void *sal_get_user_pointer(const Sal *sal);
96 typedef struct SalEndpointCandidate{
99 }SalEndpointCandidate;
101 #define SAL_ENDPOINT_CANDIDATE_MAX 2
103 typedef struct SalStreamDescription{
108 MSList *payloads; //<list of PayloadType
111 SalEndpointCandidate candidates[SAL_ENDPOINT_CANDIDATE_MAX];
113 } SalStreamDescription;
115 #define SAL_MEDIA_DESCRIPTION_MAX_STREAMS 4
117 typedef struct SalMediaDescription{
123 SalStreamDescription streams[SAL_MEDIA_DESCRIPTION_MAX_STREAMS];
124 } SalMediaDescription;
126 SalMediaDescription *sal_media_description_new();
127 void sal_media_description_ref(SalMediaDescription *md);
128 void sal_media_description_unref(SalMediaDescription *md);
129 bool_t sal_media_description_empty(const SalMediaDescription *md);
130 bool_t sal_media_description_has_dir(const SalMediaDescription *md, SalStreamDir dir);
131 const SalStreamDescription *sal_media_description_find_stream(const SalMediaDescription *md,
132 SalMediaProto proto, SalStreamType type);
133 void sal_media_description_set_dir(SalMediaDescription *md, SalStreamDir stream_dir);
135 /*this structure must be at the first byte of the SalOp structure defined by implementors*/
136 typedef struct SalOpBase{
138 char *route; /*or request-uri for REGISTER*/
143 SalMediaDescription *local_media;
144 SalMediaDescription *remote_media;
149 typedef enum SalError{
152 SalErrorFailure, /* see SalReason for more details */
156 typedef enum SalReason{
160 SalReasonTemporarilyUnavailable,
162 SalReasonDoNotDisturb,
168 typedef enum SalPresenceStatus{
172 SalPresenceBerightback,
174 SalPresenceOnthephone,
175 SalPresenceOuttolunch,
176 SalPresenceDonotdisturb,
178 SalPresenceAltService,
181 typedef enum SalSubscribeState{
183 SalSubscribeTerminated
186 typedef void (*SalOnCallReceived)(SalOp *op);
187 typedef void (*SalOnCallRinging)(SalOp *op);
188 typedef void (*SalOnCallAccepted)(SalOp *op);
189 typedef void (*SalOnCallAck)(SalOp *op);
190 typedef void (*SalOnCallUpdating)(SalOp *op);/*< Called when a reINVITE is received*/
191 typedef void (*SalOnCallTerminated)(SalOp *op, const char *from);
192 typedef void (*SalOnCallFailure)(SalOp *op, SalError error, SalReason reason, const char *details, int code);
193 typedef void (*SalOnAuthRequested)(SalOp *op, const char *realm, const char *username);
194 typedef void (*SalOnAuthSuccess)(SalOp *op, const char *realm, const char *username);
195 typedef void (*SalOnRegisterSuccess)(SalOp *op, bool_t registered);
196 typedef void (*SalOnRegisterFailure)(SalOp *op, SalError error, SalReason reason, const char *details);
197 typedef void (*SalOnVfuRequest)(SalOp *op);
198 typedef void (*SalOnDtmfReceived)(SalOp *op, char dtmf);
199 typedef void (*SalOnRefer)(Sal *sal, SalOp *op, const char *referto);
200 typedef void (*SalOnTextReceived)(Sal *sal, const char *from, const char *msg);
201 typedef void (*SalOnNotify)(SalOp *op, const char *from, const char *value);
202 typedef void (*SalOnNotifyPresence)(SalOp *op, SalSubscribeState ss, SalPresenceStatus status, const char *msg);
203 typedef void (*SalOnSubscribeReceived)(SalOp *salop, const char *from);
204 typedef void (*SalOnSubscribeClosed)(SalOp *salop, const char *from);
205 typedef void (*SalOnInternalMsg)(Sal *sal, const char *msg);
206 typedef void (*SalOnPingReply)(SalOp *salop);
208 typedef struct SalCallbacks{
209 SalOnCallReceived call_received;
210 SalOnCallRinging call_ringing;
211 SalOnCallAccepted call_accepted;
212 SalOnCallAck call_ack;
213 SalOnCallUpdating call_updating;
214 SalOnCallTerminated call_terminated;
215 SalOnCallFailure call_failure;
216 SalOnAuthRequested auth_requested;
217 SalOnAuthSuccess auth_success;
218 SalOnRegisterSuccess register_success;
219 SalOnRegisterFailure register_failure;
220 SalOnVfuRequest vfu_request;
221 SalOnDtmfReceived dtmf_received;
222 SalOnRefer refer_received;
223 SalOnTextReceived text_received;
225 SalOnNotifyPresence notify_presence;
226 SalOnSubscribeReceived subscribe_received;
227 SalOnSubscribeClosed subscribe_closed;
228 SalOnInternalMsg internal_message;
229 SalOnPingReply ping_reply;
232 typedef struct SalAuthInfo{
239 void sal_set_callbacks(Sal *ctx, const SalCallbacks *cbs);
240 int sal_listen_port(Sal *ctx, const char *addr, int port, SalTransport tr, int is_secure);
241 int sal_unlisten_ports(Sal *ctx);
242 ortp_socket_t sal_get_socket(Sal *ctx);
243 void sal_set_user_agent(Sal *ctx, const char *user_agent);
244 /*keepalive period in ms*/
245 void sal_set_keepalive_period(Sal *ctx,unsigned int value);
246 void sal_use_session_timers(Sal *ctx, int expires);
247 int sal_iterate(Sal *sal);
248 MSList * sal_get_pending_auths(Sal *sal);
250 /*create an operation */
251 SalOp * sal_op_new(Sal *sal);
253 /*generic SalOp API, working for all operations */
254 Sal *sal_op_get_sal(const SalOp *op);
255 void sal_op_set_contact(SalOp *op, const char *contact);
256 void sal_op_set_route(SalOp *op, const char *route);
257 void sal_op_set_from(SalOp *op, const char *from);
258 void sal_op_set_to(SalOp *op, const char *to);
259 void sal_op_release(SalOp *h);
260 void sal_op_authenticate(SalOp *h, const SalAuthInfo *info);
261 void sal_op_set_user_pointer(SalOp *h, void *up);
262 int sal_op_get_auth_requested(SalOp *h, const char **realm, const char **username);
263 const char *sal_op_get_from(const SalOp *op);
264 const char *sal_op_get_to(const SalOp *op);
265 const char *sal_op_get_contact(const SalOp *op);
266 const char *sal_op_get_route(const SalOp *op);
267 const char *sal_op_get_proxy(const SalOp *op);
268 /*for incoming requests, returns the origin of the packet as a sip uri*/
269 const char *sal_op_get_network_origin(const SalOp *op);
270 void *sal_op_get_user_pointer(const SalOp *op);
273 int sal_call_set_local_media_description(SalOp *h, SalMediaDescription *desc);
274 int sal_call(SalOp *h, const char *from, const char *to);
275 int sal_call_notify_ringing(SalOp *h);
276 /*accept an incoming call or, during a call accept a reINVITE*/
277 int sal_call_accept(SalOp*h);
278 int sal_call_decline(SalOp *h, SalReason reason, const char *redirection /*optional*/);
279 int sal_call_hold(SalOp *h, bool_t holdon);
280 SalMediaDescription * sal_call_get_final_media_description(SalOp *h);
281 int sal_refer(SalOp *h, const char *refer_to);
282 int sal_refer_accept(SalOp *h);
283 int sal_call_send_dtmf(SalOp *h, char dtmf);
284 int sal_call_terminate(SalOp *h);
285 bool_t sal_call_autoanswer_asked(SalOp *op);
288 int sal_register(SalOp *op, const char *proxy, const char *from, int expires);
289 int sal_unregister(SalOp *h);
292 int sal_text_send(SalOp *op, const char *from, const char *to, const char *text);
294 /*presence Subscribe/notify*/
295 int sal_subscribe_presence(SalOp *op, const char *from, const char *to);
296 int sal_unsubscribe(SalOp *op);
297 int sal_subscribe_accept(SalOp *op);
298 int sal_subscribe_decline(SalOp *op);
299 int sal_notify_presence(SalOp *op, SalPresenceStatus status, const char *status_message);
300 int sal_notify_close(SalOp *op);
302 /*presence publish */
303 int sal_publish(SalOp *op, const char *from, const char *to, SalPresenceStatus status);
306 /*ping: main purpose is to obtain its own contact address behind firewalls*/
307 int sal_ping(SalOp *op, const char *from, const char *to);
309 #define payload_type_set_number(pt,n) (pt)->user_data=(void*)((long)n);
310 #define payload_type_get_number(pt) ((int)(long)(pt)->user_data)
313 void sal_get_default_local_ip(Sal *sal, int address_family, char *ip, size_t iplen);
317 void __sal_op_init(SalOp *b, Sal *sal);
318 void __sal_op_set_network_origin(SalOp *op, const char *origin /*a sip uri*/);
319 void __sal_op_free(SalOp *b);