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"
30 #include "ortp/ortp_srtp.h"
32 /*Dirty hack, keep in sync with mediastreamer2/include/mediastream.h */
33 #ifndef PAYLOAD_TYPE_FLAG_CAN_RECV
34 #define PAYLOAD_TYPE_FLAG_CAN_RECV PAYLOAD_TYPE_USER_FLAG_1
35 #define PAYLOAD_TYPE_FLAG_CAN_SEND PAYLOAD_TYPE_USER_FLAG_2
39 typedef struct Sal Sal;
43 typedef struct SalOp SalOp;
47 typedef struct SalAddress SalAddress;
50 SalTransportUDP, /*UDP*/
51 SalTransportTCP, /*TCP*/
52 SalTransportTLS, /*TLS*/
53 SalTransportDTLS /*DTLS*/
56 const char* sal_transport_to_string(SalTransport transport);
57 SalTransport sal_transport_parse(const char*);
58 /* Address manipulation API*/
59 SalAddress * sal_address_new(const char *uri);
60 SalAddress * sal_address_clone(const SalAddress *addr);
61 const char *sal_address_get_scheme(const SalAddress *addr);
62 const char *sal_address_get_display_name(const SalAddress* addr);
63 char *sal_address_get_display_name_unquoted(const SalAddress *addr);
64 const char *sal_address_get_username(const SalAddress *addr);
65 const char *sal_address_get_domain(const SalAddress *addr);
66 const char * sal_address_get_port(const SalAddress *addr);
67 int sal_address_get_port_int(const SalAddress *addr);
68 SalTransport sal_address_get_transport(const SalAddress* addr);
70 void sal_address_set_display_name(SalAddress *addr, const char *display_name);
71 void sal_address_set_username(SalAddress *addr, const char *username);
72 void sal_address_set_domain(SalAddress *addr, const char *host);
73 void sal_address_set_port(SalAddress *addr, const char *port);
74 void sal_address_set_port_int(SalAddress *uri, int port);
75 void sal_address_clean(SalAddress *addr);
76 char *sal_address_as_string(const SalAddress *u);
77 char *sal_address_as_string_uri_only(const SalAddress *u);
78 void sal_address_destroy(SalAddress *u);
79 void sal_address_set_param(SalAddress *u,const char* name,const char* value);
80 void sal_address_set_transport(SalAddress* addr,SalTransport transport);
84 void sal_uninit(Sal* sal);
85 void sal_set_user_pointer(Sal *sal, void *user_data);
86 void *sal_get_user_pointer(const Sal *sal);
108 typedef struct SalEndpointCandidate{
111 }SalEndpointCandidate;
113 #define SAL_ENDPOINT_CANDIDATE_MAX 2
115 typedef struct SalSrtpCryptoAlgo {
117 enum ortp_srtp_crypto_suite_t algo;
118 /* 41= 40 max(key_length for all algo) + '\0' */
122 #define SAL_CRYPTO_ALGO_MAX 4
124 typedef struct SalStreamDescription{
130 MSList *payloads; //<list of PayloadType
133 SalEndpointCandidate candidates[SAL_ENDPOINT_CANDIDATE_MAX];
135 SalSrtpCryptoAlgo crypto[SAL_CRYPTO_ALGO_MAX];
136 unsigned int crypto_local_tag;
137 } SalStreamDescription;
139 #define SAL_MEDIA_DESCRIPTION_MAX_STREAMS 4
141 typedef struct SalMediaDescription{
147 unsigned int session_ver;
148 unsigned int session_id;
149 SalStreamDescription streams[SAL_MEDIA_DESCRIPTION_MAX_STREAMS];
150 } SalMediaDescription;
152 SalMediaDescription *sal_media_description_new();
153 void sal_media_description_ref(SalMediaDescription *md);
154 void sal_media_description_unref(SalMediaDescription *md);
155 bool_t sal_media_description_empty(const SalMediaDescription *md);
156 bool_t sal_media_description_equals(const SalMediaDescription *md1, const SalMediaDescription *md2);
157 bool_t sal_media_description_has_dir(const SalMediaDescription *md, SalStreamDir dir);
158 SalStreamDescription *sal_media_description_find_stream(SalMediaDescription *md,
159 SalMediaProto proto, SalStreamType type);
160 void sal_media_description_set_dir(SalMediaDescription *md, SalStreamDir stream_dir);
162 /*this structure must be at the first byte of the SalOp structure defined by implementors*/
163 typedef struct SalOpBase{
165 char *route; /*or request-uri for REGISTER*/
171 SalMediaDescription *local_media;
172 SalMediaDescription *remote_media;
177 typedef enum SalError{
180 SalErrorFailure, /* see SalReason for more details */
184 typedef enum SalReason{
188 SalReasonTemporarilyUnavailable,
190 SalReasonDoNotDisturb,
196 typedef enum SalPresenceStatus{
200 SalPresenceBerightback,
202 SalPresenceOnthephone,
203 SalPresenceOuttolunch,
204 SalPresenceDonotdisturb,
206 SalPresenceAltService,
209 typedef enum SalReferStatus{
215 typedef enum SalSubscribeStatus{
217 SalSubscribeTerminated
220 typedef void (*SalOnCallReceived)(SalOp *op);
221 typedef void (*SalOnCallRinging)(SalOp *op);
222 typedef void (*SalOnCallAccepted)(SalOp *op);
223 typedef void (*SalOnCallAck)(SalOp *op);
224 typedef void (*SalOnCallUpdating)(SalOp *op);/*< Called when a reINVITE is received*/
225 typedef void (*SalOnCallTerminated)(SalOp *op, const char *from);
226 typedef void (*SalOnCallFailure)(SalOp *op, SalError error, SalReason reason, const char *details, int code);
227 typedef void (*SalOnCallReleased)(SalOp *salop);
228 typedef void (*SalOnAuthRequested)(SalOp *op, const char *realm, const char *username);
229 typedef void (*SalOnAuthSuccess)(SalOp *op, const char *realm, const char *username);
230 typedef void (*SalOnRegisterSuccess)(SalOp *op, bool_t registered);
231 typedef void (*SalOnRegisterFailure)(SalOp *op, SalError error, SalReason reason, const char *details);
232 typedef void (*SalOnVfuRequest)(SalOp *op);
233 typedef void (*SalOnDtmfReceived)(SalOp *op, char dtmf);
234 typedef void (*SalOnRefer)(Sal *sal, SalOp *op, const char *referto);
235 typedef void (*SalOnTextReceived)(Sal *sal, const char *from, const char *msg);
236 typedef void (*SalOnNotify)(SalOp *op, const char *from, const char *event);
237 typedef void (*SalOnNotifyRefer)(SalOp *op, SalReferStatus state);
238 typedef void (*SalOnNotifyPresence)(SalOp *op, SalSubscribeStatus ss, SalPresenceStatus status, const char *msg);
239 typedef void (*SalOnSubscribeReceived)(SalOp *salop, const char *from);
240 typedef void (*SalOnSubscribeClosed)(SalOp *salop, const char *from);
241 typedef void (*SalOnPingReply)(SalOp *salop);
243 typedef struct SalCallbacks{
244 SalOnCallReceived call_received;
245 SalOnCallRinging call_ringing;
246 SalOnCallAccepted call_accepted;
247 SalOnCallAck call_ack;
248 SalOnCallUpdating call_updating;
249 SalOnCallTerminated call_terminated;
250 SalOnCallFailure call_failure;
251 SalOnCallReleased call_released;
252 SalOnAuthRequested auth_requested;
253 SalOnAuthSuccess auth_success;
254 SalOnRegisterSuccess register_success;
255 SalOnRegisterFailure register_failure;
256 SalOnVfuRequest vfu_request;
257 SalOnDtmfReceived dtmf_received;
258 SalOnRefer refer_received;
259 SalOnTextReceived text_received;
261 SalOnNotifyPresence notify_presence;
262 SalOnNotifyRefer notify_refer;
263 SalOnSubscribeReceived subscribe_received;
264 SalOnSubscribeClosed subscribe_closed;
265 SalOnPingReply ping_reply;
268 typedef struct SalAuthInfo{
275 SalAuthInfo* sal_auth_info_new();
276 SalAuthInfo* sal_auth_info_clone(const SalAuthInfo* auth_info);
277 void sal_auth_info_delete(const SalAuthInfo* auth_info);
279 void sal_set_callbacks(Sal *ctx, const SalCallbacks *cbs);
280 int sal_listen_port(Sal *ctx, const char *addr, int port, SalTransport tr, int is_secure);
281 int sal_unlisten_ports(Sal *ctx);
282 ortp_socket_t sal_get_socket(Sal *ctx);
283 void sal_set_user_agent(Sal *ctx, const char *user_agent);
284 /*keepalive period in ms*/
285 void sal_set_keepalive_period(Sal *ctx,unsigned int value);
287 * returns keepalive period in ms
290 unsigned int sal_get_keepalive_period(Sal *ctx);
291 void sal_use_session_timers(Sal *ctx, int expires);
292 void sal_use_double_registrations(Sal *ctx, bool_t enabled);
293 void sal_reuse_authorization(Sal *ctx, bool_t enabled);
294 void sal_use_one_matching_codec_policy(Sal *ctx, bool_t one_matching_codec);
295 void sal_use_rport(Sal *ctx, bool_t use_rports);
296 void sal_use_101(Sal *ctx, bool_t use_101);
297 void sal_set_root_ca(Sal* ctx, const char* rootCa);
298 void sal_verify_server_certificates(Sal *ctx, bool_t verify);
300 int sal_iterate(Sal *sal);
301 MSList * sal_get_pending_auths(Sal *sal);
303 /*create an operation */
304 SalOp * sal_op_new(Sal *sal);
306 /*generic SalOp API, working for all operations */
307 Sal *sal_op_get_sal(const SalOp *op);
308 void sal_op_set_contact(SalOp *op, const char *contact);
309 void sal_op_set_route(SalOp *op, const char *route);
310 void sal_op_set_from(SalOp *op, const char *from);
311 void sal_op_set_to(SalOp *op, const char *to);
312 void sal_op_release(SalOp *h);
313 void sal_op_authenticate(SalOp *h, const SalAuthInfo *info);
314 void sal_op_cancel_authentication(SalOp *h);
315 void sal_op_set_user_pointer(SalOp *h, void *up);
316 int sal_op_get_auth_requested(SalOp *h, const char **realm, const char **username);
317 const char *sal_op_get_from(const SalOp *op);
318 const char *sal_op_get_to(const SalOp *op);
319 const char *sal_op_get_contact(const SalOp *op);
320 const char *sal_op_get_route(const SalOp *op);
321 const char *sal_op_get_proxy(const SalOp *op);
322 /*for incoming requests, returns the origin of the packet as a sip uri*/
323 const char *sal_op_get_network_origin(const SalOp *op);
324 /*returns far-end "User-Agent" string */
325 const char *sal_op_get_remote_ua(const SalOp *op);
326 void *sal_op_get_user_pointer(const SalOp *op);
329 int sal_call_set_local_media_description(SalOp *h, SalMediaDescription *desc);
330 int sal_call(SalOp *h, const char *from, const char *to);
331 int sal_call_notify_ringing(SalOp *h, bool_t early_media);
332 /*accept an incoming call or, during a call accept a reINVITE*/
333 int sal_call_accept(SalOp*h);
334 int sal_call_decline(SalOp *h, SalReason reason, const char *redirection /*optional*/);
335 int sal_call_update(SalOp *h, const char *subject);
336 SalMediaDescription * sal_call_get_remote_media_description(SalOp *h);
337 SalMediaDescription * sal_call_get_final_media_description(SalOp *h);
338 int sal_call_refer(SalOp *h, const char *refer_to);
339 int sal_call_refer_with_replaces(SalOp *h, SalOp *other_call_h);
340 int sal_call_accept_refer(SalOp *h);
341 /*informs this call is consecutive to an incoming refer */
342 int sal_call_set_referer(SalOp *h, SalOp *refered_call);
343 /* returns the SalOp of a call that should be replaced by h, if any */
344 SalOp *sal_call_get_replaces(SalOp *h);
345 int sal_call_send_dtmf(SalOp *h, char dtmf);
346 int sal_call_terminate(SalOp *h);
347 bool_t sal_call_autoanswer_asked(SalOp *op);
348 void sal_call_send_vfu_request(SalOp *h);
349 int sal_call_is_offerer(const SalOp *h);
350 int sal_call_notify_refer_state(SalOp *h, SalOp *newcall);
353 int sal_register(SalOp *op, const char *proxy, const char *from, int expires);
354 int sal_register_refresh(SalOp *op, int expires);
355 int sal_unregister(SalOp *h);
358 int sal_text_send(SalOp *op, const char *from, const char *to, const char *text);
360 /*presence Subscribe/notify*/
361 int sal_subscribe_presence(SalOp *op, const char *from, const char *to);
362 int sal_unsubscribe(SalOp *op);
363 int sal_subscribe_accept(SalOp *op);
364 int sal_subscribe_decline(SalOp *op);
365 int sal_notify_presence(SalOp *op, SalPresenceStatus status, const char *status_message);
366 int sal_notify_close(SalOp *op);
368 /*presence publish */
369 int sal_publish(SalOp *op, const char *from, const char *to, SalPresenceStatus status);
372 /*ping: main purpose is to obtain its own contact address behind firewalls*/
373 int sal_ping(SalOp *op, const char *from, const char *to);
377 #define payload_type_set_number(pt,n) (pt)->user_data=(void*)((long)n);
378 #define payload_type_get_number(pt) ((int)(long)(pt)->user_data)
381 void sal_get_default_local_ip(Sal *sal, int address_family, char *ip, size_t iplen);
385 void __sal_op_init(SalOp *b, Sal *sal);
386 void __sal_op_set_network_origin(SalOp *op, const char *origin /*a sip uri*/);
387 void __sal_op_free(SalOp *b);