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 SalSubscribeState{
211 SalSubscribeTerminated
214 typedef void (*SalOnCallReceived)(SalOp *op);
215 typedef void (*SalOnCallRinging)(SalOp *op);
216 typedef void (*SalOnCallAccepted)(SalOp *op);
217 typedef void (*SalOnCallAck)(SalOp *op);
218 typedef void (*SalOnCallUpdating)(SalOp *op);/*< Called when a reINVITE is received*/
219 typedef void (*SalOnCallTerminated)(SalOp *op, const char *from);
220 typedef void (*SalOnCallFailure)(SalOp *op, SalError error, SalReason reason, const char *details, int code);
221 typedef void (*SalOnCallReleased)(SalOp *salop);
222 typedef void (*SalOnAuthRequested)(SalOp *op, const char *realm, const char *username);
223 typedef void (*SalOnAuthSuccess)(SalOp *op, const char *realm, const char *username);
224 typedef void (*SalOnRegisterSuccess)(SalOp *op, bool_t registered);
225 typedef void (*SalOnRegisterFailure)(SalOp *op, SalError error, SalReason reason, const char *details);
226 typedef void (*SalOnVfuRequest)(SalOp *op);
227 typedef void (*SalOnDtmfReceived)(SalOp *op, char dtmf);
228 typedef void (*SalOnRefer)(Sal *sal, SalOp *op, const char *referto);
229 typedef void (*SalOnTextReceived)(Sal *sal, const char *from, const char *msg);
230 typedef void (*SalOnNotify)(SalOp *op, const char *from, const char *value);
231 typedef void (*SalOnNotifyPresence)(SalOp *op, SalSubscribeState ss, SalPresenceStatus status, const char *msg);
232 typedef void (*SalOnSubscribeReceived)(SalOp *salop, const char *from);
233 typedef void (*SalOnSubscribeClosed)(SalOp *salop, const char *from);
234 typedef void (*SalOnPingReply)(SalOp *salop);
236 typedef struct SalCallbacks{
237 SalOnCallReceived call_received;
238 SalOnCallRinging call_ringing;
239 SalOnCallAccepted call_accepted;
240 SalOnCallAck call_ack;
241 SalOnCallUpdating call_updating;
242 SalOnCallTerminated call_terminated;
243 SalOnCallFailure call_failure;
244 SalOnCallReleased call_released;
245 SalOnAuthRequested auth_requested;
246 SalOnAuthSuccess auth_success;
247 SalOnRegisterSuccess register_success;
248 SalOnRegisterFailure register_failure;
249 SalOnVfuRequest vfu_request;
250 SalOnDtmfReceived dtmf_received;
251 SalOnRefer refer_received;
252 SalOnTextReceived text_received;
254 SalOnNotifyPresence notify_presence;
255 SalOnSubscribeReceived subscribe_received;
256 SalOnSubscribeClosed subscribe_closed;
257 SalOnPingReply ping_reply;
260 typedef struct SalAuthInfo{
267 SalAuthInfo* sal_auth_info_new();
268 SalAuthInfo* sal_auth_info_clone(const SalAuthInfo* auth_info);
269 void sal_auth_info_delete(const SalAuthInfo* auth_info);
271 void sal_set_callbacks(Sal *ctx, const SalCallbacks *cbs);
272 int sal_listen_port(Sal *ctx, const char *addr, int port, SalTransport tr, int is_secure);
273 int sal_unlisten_ports(Sal *ctx);
274 ortp_socket_t sal_get_socket(Sal *ctx);
275 void sal_set_user_agent(Sal *ctx, const char *user_agent);
276 /*keepalive period in ms*/
277 void sal_set_keepalive_period(Sal *ctx,unsigned int value);
279 * returns keepalive period in ms
282 unsigned int sal_get_keepalive_period(Sal *ctx);
283 void sal_use_session_timers(Sal *ctx, int expires);
284 void sal_use_double_registrations(Sal *ctx, bool_t enabled);
285 void sal_reuse_authorization(Sal *ctx, bool_t enabled);
286 void sal_use_one_matching_codec_policy(Sal *ctx, bool_t one_matching_codec);
287 void sal_use_rport(Sal *ctx, bool_t use_rports);
288 void sal_use_101(Sal *ctx, bool_t use_101);
289 void sal_set_root_ca(Sal* ctx, const char* rootCa);
290 void sal_verify_server_certificates(Sal *ctx, bool_t verify);
292 int sal_iterate(Sal *sal);
293 MSList * sal_get_pending_auths(Sal *sal);
295 /*create an operation */
296 SalOp * sal_op_new(Sal *sal);
298 /*generic SalOp API, working for all operations */
299 Sal *sal_op_get_sal(const SalOp *op);
300 void sal_op_set_contact(SalOp *op, const char *contact);
301 void sal_op_set_route(SalOp *op, const char *route);
302 void sal_op_set_from(SalOp *op, const char *from);
303 void sal_op_set_to(SalOp *op, const char *to);
304 void sal_op_release(SalOp *h);
305 void sal_op_authenticate(SalOp *h, const SalAuthInfo *info);
306 void sal_op_cancel_authentication(SalOp *h);
307 void sal_op_set_user_pointer(SalOp *h, void *up);
308 int sal_op_get_auth_requested(SalOp *h, const char **realm, const char **username);
309 const char *sal_op_get_from(const SalOp *op);
310 const char *sal_op_get_to(const SalOp *op);
311 const char *sal_op_get_contact(const SalOp *op);
312 const char *sal_op_get_route(const SalOp *op);
313 const char *sal_op_get_proxy(const SalOp *op);
314 /*for incoming requests, returns the origin of the packet as a sip uri*/
315 const char *sal_op_get_network_origin(const SalOp *op);
316 /*returns far-end "User-Agent" string */
317 const char *sal_op_get_remote_ua(const SalOp *op);
318 void *sal_op_get_user_pointer(const SalOp *op);
321 int sal_call_set_local_media_description(SalOp *h, SalMediaDescription *desc);
322 int sal_call(SalOp *h, const char *from, const char *to);
323 int sal_call_notify_ringing(SalOp *h, bool_t early_media);
324 /*accept an incoming call or, during a call accept a reINVITE*/
325 int sal_call_accept(SalOp*h);
326 int sal_call_decline(SalOp *h, SalReason reason, const char *redirection /*optional*/);
327 int sal_call_update(SalOp *h, const char *subject);
328 SalMediaDescription * sal_call_get_remote_media_description(SalOp *h);
329 SalMediaDescription * sal_call_get_final_media_description(SalOp *h);
330 int sal_call_refer(SalOp *h, const char *refer_to);
331 int sal_call_refer_with_replaces(SalOp *h, SalOp *other_call_h);
332 int sal_call_accept_refer(SalOp *h);
333 /*informs this call is consecutive to an incoming refer */
334 int sal_call_set_referer(SalOp *h, SalOp *refered_call);
335 /* returns the SalOp of a call that should be replaced by h, if any */
336 SalOp *sal_call_get_replaces(SalOp *h);
337 int sal_call_send_dtmf(SalOp *h, char dtmf);
338 int sal_call_terminate(SalOp *h);
339 bool_t sal_call_autoanswer_asked(SalOp *op);
340 void sal_call_send_vfu_request(SalOp *h);
341 int sal_call_is_offerer(const SalOp *h);
344 int sal_register(SalOp *op, const char *proxy, const char *from, int expires);
345 int sal_register_refresh(SalOp *op, int expires);
346 int sal_unregister(SalOp *h);
349 int sal_text_send(SalOp *op, const char *from, const char *to, const char *text);
351 /*presence Subscribe/notify*/
352 int sal_subscribe_presence(SalOp *op, const char *from, const char *to);
353 int sal_unsubscribe(SalOp *op);
354 int sal_subscribe_accept(SalOp *op);
355 int sal_subscribe_decline(SalOp *op);
356 int sal_notify_presence(SalOp *op, SalPresenceStatus status, const char *status_message);
357 int sal_notify_close(SalOp *op);
359 /*presence publish */
360 int sal_publish(SalOp *op, const char *from, const char *to, SalPresenceStatus status);
363 /*ping: main purpose is to obtain its own contact address behind firewalls*/
364 int sal_ping(SalOp *op, const char *from, const char *to);
368 #define payload_type_set_number(pt,n) (pt)->user_data=(void*)((long)n);
369 #define payload_type_get_number(pt) ((int)(long)(pt)->user_data)
372 void sal_get_default_local_ip(Sal *sal, int address_family, char *ip, size_t iplen);
376 void __sal_op_init(SalOp *b, Sal *sal);
377 void __sal_op_set_network_origin(SalOp *op, const char *origin /*a sip uri*/);
378 void __sal_op_free(SalOp *b);