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;
138 } SalStreamDescription;
140 #define SAL_MEDIA_DESCRIPTION_MAX_STREAMS 4
142 typedef struct SalMediaDescription{
148 unsigned int session_ver;
149 unsigned int session_id;
150 SalStreamDescription streams[SAL_MEDIA_DESCRIPTION_MAX_STREAMS];
151 } SalMediaDescription;
153 SalMediaDescription *sal_media_description_new();
154 void sal_media_description_ref(SalMediaDescription *md);
155 void sal_media_description_unref(SalMediaDescription *md);
156 bool_t sal_media_description_empty(const SalMediaDescription *md);
157 bool_t sal_media_description_equals(const SalMediaDescription *md1, const SalMediaDescription *md2);
158 bool_t sal_media_description_has_dir(const SalMediaDescription *md, SalStreamDir dir);
159 SalStreamDescription *sal_media_description_find_stream(SalMediaDescription *md,
160 SalMediaProto proto, SalStreamType type);
161 void sal_media_description_set_dir(SalMediaDescription *md, SalStreamDir stream_dir);
163 /*this structure must be at the first byte of the SalOp structure defined by implementors*/
164 typedef struct SalOpBase{
166 char *route; /*or request-uri for REGISTER*/
172 SalMediaDescription *local_media;
173 SalMediaDescription *remote_media;
178 typedef enum SalError{
181 SalErrorFailure, /* see SalReason for more details */
185 typedef enum SalReason{
189 SalReasonTemporarilyUnavailable,
191 SalReasonDoNotDisturb,
197 typedef enum SalPresenceStatus{
201 SalPresenceBerightback,
203 SalPresenceOnthephone,
204 SalPresenceOuttolunch,
205 SalPresenceDonotdisturb,
207 SalPresenceAltService,
210 typedef enum SalSubscribeState{
212 SalSubscribeTerminated
215 typedef void (*SalOnCallReceived)(SalOp *op);
216 typedef void (*SalOnCallRinging)(SalOp *op);
217 typedef void (*SalOnCallAccepted)(SalOp *op);
218 typedef void (*SalOnCallAck)(SalOp *op);
219 typedef void (*SalOnCallUpdating)(SalOp *op);/*< Called when a reINVITE is received*/
220 typedef void (*SalOnCallTerminated)(SalOp *op, const char *from);
221 typedef void (*SalOnCallFailure)(SalOp *op, SalError error, SalReason reason, const char *details, int code);
222 typedef void (*SalOnCallReleased)(SalOp *salop);
223 typedef void (*SalOnAuthRequested)(SalOp *op, const char *realm, const char *username);
224 typedef void (*SalOnAuthSuccess)(SalOp *op, const char *realm, const char *username);
225 typedef void (*SalOnRegisterSuccess)(SalOp *op, bool_t registered);
226 typedef void (*SalOnRegisterFailure)(SalOp *op, SalError error, SalReason reason, const char *details);
227 typedef void (*SalOnVfuRequest)(SalOp *op);
228 typedef void (*SalOnDtmfReceived)(SalOp *op, char dtmf);
229 typedef void (*SalOnRefer)(Sal *sal, SalOp *op, const char *referto);
230 typedef void (*SalOnTextReceived)(Sal *sal, const char *from, const char *msg);
231 typedef void (*SalOnNotify)(SalOp *op, const char *from, const char *value);
232 typedef void (*SalOnNotifyPresence)(SalOp *op, SalSubscribeState ss, SalPresenceStatus status, const char *msg);
233 typedef void (*SalOnSubscribeReceived)(SalOp *salop, const char *from);
234 typedef void (*SalOnSubscribeClosed)(SalOp *salop, const char *from);
235 typedef void (*SalOnPingReply)(SalOp *salop);
237 typedef struct SalCallbacks{
238 SalOnCallReceived call_received;
239 SalOnCallRinging call_ringing;
240 SalOnCallAccepted call_accepted;
241 SalOnCallAck call_ack;
242 SalOnCallUpdating call_updating;
243 SalOnCallTerminated call_terminated;
244 SalOnCallFailure call_failure;
245 SalOnCallReleased call_released;
246 SalOnAuthRequested auth_requested;
247 SalOnAuthSuccess auth_success;
248 SalOnRegisterSuccess register_success;
249 SalOnRegisterFailure register_failure;
250 SalOnVfuRequest vfu_request;
251 SalOnDtmfReceived dtmf_received;
252 SalOnRefer refer_received;
253 SalOnTextReceived text_received;
255 SalOnNotifyPresence notify_presence;
256 SalOnSubscribeReceived subscribe_received;
257 SalOnSubscribeClosed subscribe_closed;
258 SalOnPingReply ping_reply;
261 typedef struct SalAuthInfo{
268 SalAuthInfo* sal_auth_info_new();
269 SalAuthInfo* sal_auth_info_clone(const SalAuthInfo* auth_info);
270 void sal_auth_info_delete(const SalAuthInfo* auth_info);
272 void sal_set_callbacks(Sal *ctx, const SalCallbacks *cbs);
273 int sal_listen_port(Sal *ctx, const char *addr, int port, SalTransport tr, int is_secure);
274 int sal_unlisten_ports(Sal *ctx);
275 ortp_socket_t sal_get_socket(Sal *ctx);
276 void sal_set_user_agent(Sal *ctx, const char *user_agent);
277 /*keepalive period in ms*/
278 void sal_set_keepalive_period(Sal *ctx,unsigned int value);
280 * returns keepalive period in ms
283 unsigned int sal_get_keepalive_period(Sal *ctx);
284 void sal_use_session_timers(Sal *ctx, int expires);
285 void sal_use_double_registrations(Sal *ctx, bool_t enabled);
286 void sal_reuse_authorization(Sal *ctx, bool_t enabled);
287 void sal_use_one_matching_codec_policy(Sal *ctx, bool_t one_matching_codec);
288 void sal_use_rport(Sal *ctx, bool_t use_rports);
289 void sal_use_101(Sal *ctx, bool_t use_101);
290 void sal_set_root_ca(Sal* ctx, const char* rootCa);
291 void sal_verify_server_certificates(Sal *ctx, bool_t verify);
293 int sal_iterate(Sal *sal);
294 MSList * sal_get_pending_auths(Sal *sal);
296 /*create an operation */
297 SalOp * sal_op_new(Sal *sal);
299 /*generic SalOp API, working for all operations */
300 Sal *sal_op_get_sal(const SalOp *op);
301 void sal_op_set_contact(SalOp *op, const char *contact);
302 void sal_op_set_route(SalOp *op, const char *route);
303 void sal_op_set_from(SalOp *op, const char *from);
304 void sal_op_set_to(SalOp *op, const char *to);
305 void sal_op_release(SalOp *h);
306 void sal_op_authenticate(SalOp *h, const SalAuthInfo *info);
307 void sal_op_cancel_authentication(SalOp *h);
308 void sal_op_set_user_pointer(SalOp *h, void *up);
309 int sal_op_get_auth_requested(SalOp *h, const char **realm, const char **username);
310 const char *sal_op_get_from(const SalOp *op);
311 const char *sal_op_get_to(const SalOp *op);
312 const char *sal_op_get_contact(const SalOp *op);
313 const char *sal_op_get_route(const SalOp *op);
314 const char *sal_op_get_proxy(const SalOp *op);
315 /*for incoming requests, returns the origin of the packet as a sip uri*/
316 const char *sal_op_get_network_origin(const SalOp *op);
317 /*returns far-end "User-Agent" string */
318 const char *sal_op_get_remote_ua(const SalOp *op);
319 void *sal_op_get_user_pointer(const SalOp *op);
322 int sal_call_set_local_media_description(SalOp *h, SalMediaDescription *desc);
323 int sal_call(SalOp *h, const char *from, const char *to);
324 int sal_call_notify_ringing(SalOp *h, bool_t early_media);
325 /*accept an incoming call or, during a call accept a reINVITE*/
326 int sal_call_accept(SalOp*h);
327 int sal_call_decline(SalOp *h, SalReason reason, const char *redirection /*optional*/);
328 int sal_call_update(SalOp *h, const char *subject);
329 SalMediaDescription * sal_call_get_remote_media_description(SalOp *h);
330 SalMediaDescription * sal_call_get_final_media_description(SalOp *h);
331 int sal_call_refer(SalOp *h, const char *refer_to);
332 int sal_call_refer_with_replaces(SalOp *h, SalOp *other_call_h);
333 int sal_call_accept_refer(SalOp *h);
334 /*informs this call is consecutive to an incoming refer */
335 int sal_call_set_referer(SalOp *h, SalOp *refered_call);
336 /* returns the SalOp of a call that should be replaced by h, if any */
337 SalOp *sal_call_get_replaces(SalOp *h);
338 int sal_call_send_dtmf(SalOp *h, char dtmf);
339 int sal_call_terminate(SalOp *h);
340 bool_t sal_call_autoanswer_asked(SalOp *op);
341 void sal_call_send_vfu_request(SalOp *h);
342 int sal_call_is_offerer(const SalOp *h);
345 int sal_register(SalOp *op, const char *proxy, const char *from, int expires);
346 int sal_register_refresh(SalOp *op, int expires);
347 int sal_unregister(SalOp *h);
350 int sal_text_send(SalOp *op, const char *from, const char *to, const char *text);
352 /*presence Subscribe/notify*/
353 int sal_subscribe_presence(SalOp *op, const char *from, const char *to);
354 int sal_unsubscribe(SalOp *op);
355 int sal_subscribe_accept(SalOp *op);
356 int sal_subscribe_decline(SalOp *op);
357 int sal_notify_presence(SalOp *op, SalPresenceStatus status, const char *status_message);
358 int sal_notify_close(SalOp *op);
360 /*presence publish */
361 int sal_publish(SalOp *op, const char *from, const char *to, SalPresenceStatus status);
364 /*ping: main purpose is to obtain its own contact address behind firewalls*/
365 int sal_ping(SalOp *op, const char *from, const char *to);
369 #define payload_type_set_number(pt,n) (pt)->user_data=(void*)((long)n);
370 #define payload_type_get_number(pt) ((int)(long)(pt)->user_data)
373 void sal_get_default_local_ip(Sal *sal, int address_family, char *ip, size_t iplen);
377 void __sal_op_init(SalOp *b, Sal *sal);
378 void __sal_op_set_network_origin(SalOp *op, const char *origin /*a sip uri*/);
379 void __sal_op_free(SalOp *b);