sjero.net Git - linphone/blob - coreapi/callbacks.c

   1 /*
   2 linphone
   3 Copyright (C) 2010  Simon MORLAT (simon.morlat@free.fr)
   4
   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.
   9
  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.
  14
  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.
  18 */
  19
  20
  21 #include "sal.h"
  22
  23 #include "linphonecore.h"
  24 #include "private.h"
  25 #include "mediastreamer2/mediastream.h"
  26 #include "lpconfig.h"
  27
  28 static void register_failure(SalOp *op, SalError error, SalReason reason, const char *details);
  29
  30 static bool_t media_parameters_changed(LinphoneCall *call, SalMediaDescription *oldmd, SalMediaDescription *newmd){
  31         if (call->params.in_conference!=call->current_params.in_conference) return TRUE;
  32         return !sal_media_description_equals(oldmd,newmd)  || call->up_bw!=linphone_core_get_upload_bandwidth(call->core);
  33 }
  34
  35 void linphone_core_update_streams(LinphoneCore *lc, LinphoneCall *call, SalMediaDescription *new_md){
  36         SalMediaDescription *oldmd=call->resultdesc;
  37
  38         if (lc->ringstream!=NULL){
  39                 ring_stop(lc->ringstream);
  40                 lc->ringstream=NULL;
  41         }
  42         if (new_md!=NULL){
  43                 sal_media_description_ref(new_md);
  44                 call->media_pending=FALSE;
  45         }else{
  46                 call->media_pending=TRUE;
  47         }
  48         call->resultdesc=new_md;
  49         if ((call->audiostream && call->audiostream->ticker) || (call->videostream && call->videostream->ticker)){
  50                 /* we already started media: check if we really need to restart it*/
  51                 if (oldmd){
  52                         if (!media_parameters_changed(call,oldmd,new_md) && !call->playing_ringbacktone){
  53                                 /*as nothing has changed, keep the oldmd */
  54                                 call->resultdesc=oldmd;
  55                                 sal_media_description_unref(new_md);
  56                                 if (call->all_muted){
  57                                         ms_message("Early media finished, unmuting inputs...");
  58                                         /*we were in early media, now we want to enable real media */
  59                                         linphone_call_enable_camera (call,linphone_call_camera_enabled (call));
  60                                         if (call->audiostream)
  61                                                 linphone_core_mute_mic (lc, linphone_core_is_mic_muted(lc));
  62 #ifdef VIDEO_ENABLED
  63                                         if (call->videostream && call->camera_active)
  64                                                 video_stream_change_camera(call->videostream,lc->video_conf.device );
  65 #endif
  66                                 }
  67                                 ms_message("No need to restart streams, SDP is unchanged.");
  68                                 return;
  69                         }else{
  70                                 ms_message("Media descriptions are different, need to restart the streams.");
  71                         }
  72                 }
  73                 linphone_call_stop_media_streams (call);
  74                 linphone_call_init_media_streams (call);
  75         }
  76         if (oldmd)
  77                 sal_media_description_unref(oldmd);
  78
  79         if (new_md) {
  80                 bool_t all_muted=FALSE;
  81                 bool_t send_ringbacktone=FALSE;
  82
  83                 if (call->audiostream==NULL){
  84                         /*this happens after pausing the call locally. The streams is destroyed and then we wait the 200Ok to recreate it*/
  85                         linphone_call_init_media_streams (call);
  86                 }
  87                 if (call->state==LinphoneCallIncomingEarlyMedia && linphone_core_get_remote_ringback_tone (lc)!=NULL){
  88                         send_ringbacktone=TRUE;
  89                 }
  90                 if (call->state==LinphoneCallIncomingEarlyMedia ||
  91                     (call->state==LinphoneCallOutgoingEarlyMedia && !call->params.real_early_media)){
  92                         all_muted=TRUE;
  93                 }
  94                 linphone_call_start_media_streams(call,all_muted,send_ringbacktone);
  95         }
  96 }
  97 #if 0
  98 static bool_t is_duplicate_call(LinphoneCore *lc, const LinphoneAddress *from, const LinphoneAddress *to){
  99         MSList *elem;
 100         for(elem=lc->calls;elem!=NULL;elem=elem->next){
 101                 LinphoneCall *call=(LinphoneCall*)elem->data;
 102                 if (linphone_address_weak_equal(call->log->from,from) &&
 103                     linphone_address_weak_equal(call->log->to, to)){
 104                         return TRUE;
 105                 }
 106         }
 107         return FALSE;
 108 }
 109 #endif
 110
 111 static bool_t already_a_call_with_remote_address(const LinphoneCore *lc, const LinphoneAddress *remote) {
 112         ms_warning(" searching for already_a_call_with_remote_address.");
 113
 114         MSList *elem;
 115         for(elem=lc->calls;elem!=NULL;elem=elem->next){
 116                 const LinphoneCall *call=(LinphoneCall*)elem->data;
 117                 const LinphoneAddress *cRemote=linphone_call_get_remote_address(call);
 118                 if (linphone_address_weak_equal(cRemote,remote)) {
 119                         ms_warning("already_a_call_with_remote_address found.");
 120                         return TRUE;
 121                 }
 122         }
 123         return FALSE;
 124 }
 125
 126 static bool_t already_a_call_pending(LinphoneCore *lc){
 127         MSList *elem;
 128         for(elem=lc->calls;elem!=NULL;elem=elem->next){
 129                 LinphoneCall *call=(LinphoneCall*)elem->data;
 130                 if (call->state==LinphoneCallIncomingReceived
 131                     || call->state==LinphoneCallOutgoingInit
 132                     || call->state==LinphoneCallOutgoingProgress
 133                     || call->state==LinphoneCallOutgoingEarlyMedia
 134                     || call->state==LinphoneCallOutgoingRinging){
 135                         return TRUE;
 136                 }
 137         }
 138         return FALSE;
 139 }
 140
 141 static void call_received(SalOp *h){
 142         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(h));
 143         LinphoneCall *call;
 144         const char *from,*to;
 145         LinphoneAddress *from_addr, *to_addr;
 146         bool_t prevent_colliding_calls=lp_config_get_int(lc->config,"sip","prevent_colliding_calls",TRUE);
 147
 148         /* first check if we can answer successfully to this invite */
 149         if (lc->presence_mode==LinphoneStatusBusy ||
 150             lc->presence_mode==LinphoneStatusOffline ||
 151             lc->presence_mode==LinphoneStatusDoNotDisturb ||
 152             lc->presence_mode==LinphoneStatusMoved){
 153                 if (lc->presence_mode==LinphoneStatusBusy )
 154                         sal_call_decline(h,SalReasonBusy,NULL);
 155                 else if (lc->presence_mode==LinphoneStatusOffline)
 156                         sal_call_decline(h,SalReasonTemporarilyUnavailable,NULL);
 157                 else if (lc->presence_mode==LinphoneStatusDoNotDisturb)
 158                         sal_call_decline(h,SalReasonTemporarilyUnavailable,NULL);
 159                 else if (lc->alt_contact!=NULL && lc->presence_mode==LinphoneStatusMoved)
 160                         sal_call_decline(h,SalReasonRedirect,lc->alt_contact);
 161                 sal_op_release(h);
 162                 return;
 163         }
 164         if (!linphone_core_can_we_add_call(lc)){/*busy*/
 165                 sal_call_decline(h,SalReasonBusy,NULL);
 166                 sal_op_release(h);
 167                 return;
 168         }
 169         from=sal_op_get_from(h);
 170         to=sal_op_get_to(h);
 171         from_addr=linphone_address_new(from);
 172         to_addr=linphone_address_new(to);
 173
 174         if ((already_a_call_with_remote_address(lc,from_addr) && prevent_colliding_calls) || already_a_call_pending(lc)){
 175                 ms_warning("Receiving another call while one is ringing or initiated, refusing this one with busy message.");
 176                 sal_call_decline(h,SalReasonBusy,NULL);
 177                 sal_op_release(h);
 178                 linphone_address_destroy(from_addr);
 179                 linphone_address_destroy(to_addr);
 180                 return;
 181         }
 182
 183         call=linphone_call_new_incoming(lc,from_addr,to_addr,h);
 184
 185         /* the call is acceptable so we can now add it to our list */
 186         linphone_core_add_call(lc,call);
 187         linphone_call_ref(call); /*prevent the call from being destroyed while we are notifying, if the user declines within the state callback */
 188
 189         if ((linphone_core_get_firewall_policy(lc) == LinphonePolicyUseIce) && (call->ice_session != NULL)) {
 190                 /* Defer ringing until the end of the ICE candidates gathering process. */
 191                 ms_message("Defer ringing to gather ICE candidates");
 192                 return;
 193         }
 194
 195         linphone_core_notify_incoming_call(lc,call);
 196 }
 197
 198 static void call_ringing(SalOp *h){
 199         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(h));
 200         LinphoneCall *call=(LinphoneCall*)sal_op_get_user_pointer(h);
 201         SalMediaDescription *md;
 202
 203         if (call==NULL) return;
 204
 205         if (lc->vtable.display_status)
 206                 lc->vtable.display_status(lc,_("Remote ringing."));
 207
 208         md=sal_call_get_final_media_description(h);
 209         if (md==NULL){
 210                 if (lc->ringstream && lc->dmfs_playing_start_time!=0){
 211                         ring_stop(lc->ringstream);
 212                         lc->ringstream=NULL;
 213                         lc->dmfs_playing_start_time=0;
 214                 }
 215                 if (lc->ringstream!=NULL) return;       /*already ringing !*/
 216                 if (lc->sound_conf.play_sndcard!=NULL){
 217                         MSSndCard *ringcard=lc->sound_conf.lsd_card ? lc->sound_conf.lsd_card : lc->sound_conf.play_sndcard;
 218                         if (call->localdesc->streams[0].max_rate>0) ms_snd_card_set_preferred_sample_rate(ringcard, call->localdesc->streams[0].max_rate);
 219                         /*we release sound before playing ringback tone*/
 220                         if (call->audiostream)
 221                                 audio_stream_unprepare_sound(call->audiostream);
 222                         lc->ringstream=ring_start(lc->sound_conf.remote_ring,2000,ringcard);
 223                 }
 224                 ms_message("Remote ringing...");
 225                 if (lc->vtable.display_status)
 226                         lc->vtable.display_status(lc,_("Remote ringing..."));
 227                 linphone_call_set_state(call,LinphoneCallOutgoingRinging,"Remote ringing");
 228         }else{
 229                 /*accept early media */
 230                 if (call->audiostream && audio_stream_started(call->audiostream)){
 231                         /*streams already started */
 232                         ms_message("Early media already started.");
 233                         return;
 234                 }
 235                 if (lc->vtable.show) lc->vtable.show(lc);
 236                 if (lc->vtable.display_status)
 237                         lc->vtable.display_status(lc,_("Early media."));
 238                 linphone_call_set_state(call,LinphoneCallOutgoingEarlyMedia,"Early media");
 239                 if (lc->ringstream!=NULL){
 240                         ring_stop(lc->ringstream);
 241                         lc->ringstream=NULL;
 242                 }
 243                 ms_message("Doing early media...");
 244                 linphone_core_update_streams(lc,call,md);
 245         }
 246 }
 247
 248 /*
 249  * could be reach :
 250  *  - when the call is accepted
 251  *  - when a request is accepted (pause, resume)
 252  */
 253 static void call_accepted(SalOp *op){
 254         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
 255         LinphoneCall *call=(LinphoneCall*)sal_op_get_user_pointer(op);
 256         SalMediaDescription *md;
 257
 258         if (call==NULL){
 259                 ms_warning("No call to accept.");
 260                 return ;
 261         }
 262
 263         /* Handle remote ICE attributes if any. */
 264         if (call->ice_session != NULL) {
 265                 linphone_core_update_ice_from_remote_media_description(call, sal_call_get_remote_media_description(op));
 266         }
 267
 268         md=sal_call_get_final_media_description(op);
 269
 270         if (call->state==LinphoneCallOutgoingProgress ||
 271             call->state==LinphoneCallOutgoingRinging ||
 272             call->state==LinphoneCallOutgoingEarlyMedia){
 273                 linphone_call_set_state(call,LinphoneCallConnected,"Connected");
 274                 if (call->referer) linphone_core_notify_refer_state(lc,call->referer,call);
 275         }
 276         if (md && !sal_media_description_empty(md)){
 277                 if (sal_media_description_has_dir(md,SalStreamSendOnly) ||
 278                     sal_media_description_has_dir(md,SalStreamInactive)){
 279                         if (lc->vtable.display_status){
 280                                 char *tmp=linphone_call_get_remote_address_as_string (call);
 281                                 char *msg=ms_strdup_printf(_("Call with %s is paused."),tmp);
 282                                 lc->vtable.display_status(lc,msg);
 283                                 ms_free(tmp);
 284                                 ms_free(msg);
 285                         }
 286                         linphone_core_update_streams (lc,call,md);
 287                         linphone_call_set_state(call,LinphoneCallPaused,"Call paused");
 288                         if (call->refer_pending)
 289                                 linphone_core_start_refered_call(lc,call);
 290                 }else if (sal_media_description_has_dir(md,SalStreamRecvOnly)){
 291                         /*we are put on hold when the call is initially accepted */
 292                         if (lc->vtable.display_status){
 293                                 char *tmp=linphone_call_get_remote_address_as_string (call);
 294                                 char *msg=ms_strdup_printf(_("Call answered by %s - on hold."),tmp);
 295                                 lc->vtable.display_status(lc,msg);
 296                                 ms_free(tmp);
 297                                 ms_free(msg);
 298                         }
 299                         linphone_core_update_streams (lc,call,md);
 300                         linphone_call_set_state(call,LinphoneCallPausedByRemote,"Call paused by remote");
 301                 }else{
 302                         if (call->state!=LinphoneCallUpdating){
 303                                 if (call->state==LinphoneCallResuming){
 304                                         if (lc->vtable.display_status){
 305                                                 lc->vtable.display_status(lc,_("Call resumed."));
 306                                         }
 307                                 }else{
 308                                         if (lc->vtable.display_status){
 309                                                 char *tmp=linphone_call_get_remote_address_as_string (call);
 310                                                 char *msg=ms_strdup_printf(_("Call answered by %s."),tmp);
 311                                                 lc->vtable.display_status(lc,msg);
 312                                                 ms_free(tmp);
 313                                                 ms_free(msg);
 314                                         }
 315                                 }
 316                         }
 317                         linphone_core_update_streams (lc,call,md);
 318                         if (!call->current_params.in_conference)
 319                                 lc->current_call=call;
 320                         linphone_call_set_state(call, LinphoneCallStreamsRunning, "Streams running");
 321                 }
 322         }else{
 323                 /*send a bye*/
 324                 ms_error("Incompatible SDP offer received in 200Ok, need to abort the call");
 325                 linphone_core_abort_call(lc,call,_("Incompatible, check codecs..."));
 326         }
 327 }
 328
 329 static void call_ack(SalOp *op){
 330         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
 331         LinphoneCall *call=(LinphoneCall*)sal_op_get_user_pointer(op);
 332         if (call==NULL){
 333                 ms_warning("No call to be ACK'd");
 334                 return ;
 335         }
 336         if (call->media_pending){
 337                 SalMediaDescription *md=sal_call_get_final_media_description(op);
 338                 if (md && !sal_media_description_empty(md)){
 339                         linphone_core_update_streams (lc,call,md);
 340                         linphone_call_set_state (call,LinphoneCallStreamsRunning,"Connected (streams running)");
 341                 }else{
 342                         /*send a bye*/
 343                         ms_error("Incompatible SDP response received in ACK, need to abort the call");
 344                         linphone_core_abort_call(lc,call,"No codec intersection");
 345                         return;
 346                 }
 347         }
 348 }
 349
 350 static void call_accept_update(LinphoneCore *lc, LinphoneCall *call){
 351         SalMediaDescription *md;
 352         SalMediaDescription *rmd=sal_call_get_remote_media_description(call->op);
 353         if ((rmd!=NULL) && (call->ice_session!=NULL)) {
 354                 linphone_core_update_ice_from_remote_media_description(call,rmd);
 355                 linphone_core_update_local_media_description_from_ice(call->localdesc,call->ice_session);
 356         }
 357         sal_call_accept(call->op);
 358         md=sal_call_get_final_media_description(call->op);
 359         if (md && !sal_media_description_empty(md))
 360                 linphone_core_update_streams(lc,call,md);
 361 }
 362
 363 static void call_resumed(LinphoneCore *lc, LinphoneCall *call){
 364         call_accept_update(lc,call);
 365         if(lc->vtable.display_status)
 366                 lc->vtable.display_status(lc,_("We have been resumed."));
 367         linphone_call_set_state(call,LinphoneCallStreamsRunning,"Connected (streams running)");
 368         linphone_call_set_transfer_state(call, LinphoneCallIdle);
 369 }
 370
 371 static void call_paused_by_remote(LinphoneCore *lc, LinphoneCall *call){
 372         call_accept_update(lc,call);
 373         /* we are being paused */
 374         if(lc->vtable.display_status)
 375                 lc->vtable.display_status(lc,_("We are paused by other party."));
 376         linphone_call_set_state (call,LinphoneCallPausedByRemote,"Call paused by remote");
 377 }
 378
 379 static void call_updated_by_remote(LinphoneCore *lc, LinphoneCall *call){
 380         if(lc->vtable.display_status)
 381                 lc->vtable.display_status(lc,_("Call is updated by remote."));
 382         call->defer_update=FALSE;
 383         linphone_call_set_state(call, LinphoneCallUpdatedByRemote,"Call updated by remote");
 384         if (call->defer_update==FALSE){
 385                 linphone_core_accept_call_update(lc,call,NULL);
 386         }
 387 }
 388
 389 /* this callback is called when an incoming re-INVITE modifies the session*/
 390 static void call_updating(SalOp *op){
 391         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
 392         LinphoneCall *call=(LinphoneCall*)sal_op_get_user_pointer(op);
 393         SalMediaDescription *rmd=sal_call_get_remote_media_description(op);
 394
 395         if (rmd==NULL){
 396                 /* case of a reINVITE without SDP */
 397                 call_accept_update(lc,call);
 398                 call->media_pending=TRUE;
 399                 return;
 400         }
 401
 402         switch(call->state){
 403                 case LinphoneCallPausedByRemote:
 404                         if (sal_media_description_has_dir(rmd,SalStreamSendRecv) || sal_media_description_has_dir(rmd,SalStreamRecvOnly)){
 405                                 call_resumed(lc,call);
 406                         }else call_paused_by_remote(lc,call);
 407                 break;
 408                 case LinphoneCallStreamsRunning:
 409                 case LinphoneCallConnected:
 410                         if (sal_media_description_has_dir(rmd,SalStreamSendOnly) || sal_media_description_has_dir(rmd,SalStreamInactive)){
 411                                 call_paused_by_remote(lc,call);
 412                         }else{
 413                                 call_updated_by_remote(lc,call);
 414                         }
 415                 break;
 416                 default:
 417                         call_accept_update(lc,call);
 418         }
 419 }
 420
 421 static void call_terminated(SalOp *op, const char *from){
 422         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
 423         LinphoneCall *call=(LinphoneCall*)sal_op_get_user_pointer(op);
 424
 425         if (call==NULL) return;
 426
 427         switch(linphone_call_get_state(call)){
 428                 case LinphoneCallEnd:
 429                 case LinphoneCallError:
 430                         ms_warning("call_terminated: ignoring.");
 431                         return;
 432                 break;
 433                 case LinphoneCallIncomingReceived:
 434                 case LinphoneCallIncomingEarlyMedia:
 435                         call->reason=LinphoneReasonNotAnswered;
 436                 break;
 437                 default:
 438                 break;
 439         }
 440         ms_message("Current call terminated...");
 441         //we stop the call only if we have this current call or if we are in call
 442         if (lc->ringstream!=NULL && ( (ms_list_size(lc->calls)  == 1) || linphone_core_in_call(lc) )) {
 443                 ring_stop(lc->ringstream);
 444                 lc->ringstream=NULL;
 445         }
 446         linphone_call_stop_media_streams(call);
 447         if (lc->vtable.show!=NULL)
 448                 lc->vtable.show(lc);
 449         if (lc->vtable.display_status!=NULL)
 450                 lc->vtable.display_status(lc,_("Call terminated."));
 451
 452         linphone_call_set_state(call, LinphoneCallEnd,"Call ended");
 453 }
 454
 455 static void call_failure(SalOp *op, SalError error, SalReason sr, const char *details, int code){
 456         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
 457         char *msg486=_("User is busy.");
 458         char *msg480=_("User is temporarily unavailable.");
 459         /*char *retrymsg=_("%s. Retry after %i minute(s).");*/
 460         char *msg600=_("User does not want to be disturbed.");
 461         char *msg603=_("Call declined.");
 462         const char *msg=details;
 463         LinphoneCall *call=(LinphoneCall*)sal_op_get_user_pointer(op);
 464
 465         if (call==NULL){
 466                 ms_warning("Call faillure reported on already cleaned call ?");
 467                 return ;
 468         }
 469
 470         if (lc->vtable.show) lc->vtable.show(lc);
 471
 472         if (error==SalErrorNoResponse){
 473                 msg=_("No response.");
 474                 if (lc->vtable.display_status)
 475                         lc->vtable.display_status(lc,msg);
 476         }else if (error==SalErrorProtocol){
 477                 msg=details ? details : _("Protocol error.");
 478                 if (lc->vtable.display_status)
 479                         lc->vtable.display_status(lc, msg);
 480         }else if (error==SalErrorFailure){
 481                 switch(sr){
 482                         case SalReasonDeclined:
 483                                 msg=msg603;
 484                                 if (lc->vtable.display_status)
 485                                         lc->vtable.display_status(lc,msg603);
 486                         break;
 487                         case SalReasonBusy:
 488                                 msg=msg486;
 489                                 if (lc->vtable.display_status)
 490                                         lc->vtable.display_status(lc,msg486);
 491                         break;
 492                         case SalReasonRedirect:
 493                                 msg=_("Redirected");
 494                                 if (lc->vtable.display_status)
 495                                         lc->vtable.display_status(lc,msg);
 496                         break;
 497                         case SalReasonTemporarilyUnavailable:
 498                                 msg=msg480;
 499                                 if (lc->vtable.display_status)
 500                                         lc->vtable.display_status(lc,msg480);
 501                         break;
 502                         case SalReasonNotFound:
 503                                 if (lc->vtable.display_status)
 504                                         lc->vtable.display_status(lc,msg);
 505                         break;
 506                         case SalReasonDoNotDisturb:
 507                                 msg=msg600;
 508                                 if (lc->vtable.display_status)
 509                                         lc->vtable.display_status(lc,msg600);
 510                         break;
 511                         case SalReasonMedia:
 512                         //media_encryption_mandatory
 513                                 if (call->params.media_encryption == LinphoneMediaEncryptionSRTP &&
 514                                         !linphone_core_is_media_encryption_mandatory(lc)) {
 515                                         int i;
 516                                         ms_message("Outgoing call failed with SRTP (SAVP) enabled - retrying with AVP");
 517                                         linphone_call_stop_media_streams(call);
 518                                         if (call->state==LinphoneCallOutgoingInit || call->state==LinphoneCallOutgoingProgress){
 519                                                 /* clear SRTP local params */
 520                                                 call->params.media_encryption = LinphoneMediaEncryptionNone;
 521                                                 for(i=0; i<call->localdesc->nstreams; i++) {
 522                                                         call->localdesc->streams[i].proto = SalProtoRtpAvp;
 523                                                         memset(call->localdesc->streams[i].crypto, 0, sizeof(call->localdesc->streams[i].crypto));
 524                                                 }
 525                                                 linphone_core_start_invite(lc, call);
 526                                         }
 527                                         return;
 528                                 }
 529                                 msg=_("Incompatible media parameters.");
 530                                 if (lc->vtable.display_status)
 531                                         lc->vtable.display_status(lc,msg);
 532                         break;
 533                         default:
 534                                 if (lc->vtable.display_status)
 535                                         lc->vtable.display_status(lc,_("Call failed."));
 536                 }
 537         }
 538
 539         if (lc->ringstream!=NULL) {
 540                 ring_stop(lc->ringstream);
 541                 lc->ringstream=NULL;
 542         }
 543         linphone_call_stop_media_streams (call);
 544         if (call->referer && linphone_call_get_state(call->referer)==LinphoneCallPaused && call->referer->was_automatically_paused){
 545                 /*resume to the call that send us the refer automatically*/
 546                 linphone_core_resume_call(lc,call->referer);
 547         }
 548         if (sr == SalReasonDeclined) {
 549                 call->reason=LinphoneReasonDeclined;
 550                 linphone_call_set_state(call,LinphoneCallEnd,"Call declined.");
 551         } else if (sr == SalReasonNotFound) {
 552                 call->reason=LinphoneReasonNotFound;
 553                 linphone_call_set_state(call,LinphoneCallError,"User not found.");
 554         } else {
 555                 linphone_call_set_state(call,LinphoneCallError,msg);
 556         }
 557 }
 558
 559 static void call_released(SalOp *op){
 560         LinphoneCall *call=(LinphoneCall*)sal_op_get_user_pointer(op);
 561         if (call!=NULL){
 562                 linphone_call_set_state(call,LinphoneCallReleased,"Call released");
 563         }else ms_error("call_released() for already destroyed call ?");
 564 }
 565
 566 static void auth_requested(SalOp *h, const char *realm, const char *username){
 567         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(h));
 568         LinphoneAuthInfo *ai=(LinphoneAuthInfo*)linphone_core_find_auth_info(lc,realm,username);
 569         LinphoneCall *call=is_a_linphone_call(sal_op_get_user_pointer(h));
 570
 571         if (call && call->ping_op==h){
 572                 /*don't request authentication for ping requests. Their purpose is just to get any
 573                  * answer to get the Via's received and rport parameters.
 574                  */
 575                 ms_message("auth_requested(): ignored for ping request.");
 576                 return;
 577         }
 578
 579         ms_message("auth_requested() for realm=%s, username=%s",realm,username);
 580
 581         if (ai && ai->works==FALSE && ai->usecount>=3){
 582                 /*case we tried 3 times to authenticate, without success */
 583                 /*Better is to stop (implemeted below in else statement), and retry later*/
 584                 if (ms_time(NULL)-ai->last_use_time>30){
 585                         ai->usecount=0; /*so that we can allow to retry */
 586                 }
 587         }
 588
 589         if (ai && (ai->works || ai->usecount<3)){
 590                 SalAuthInfo sai;
 591                 sai.username=ai->username;
 592                 sai.userid=ai->userid;
 593                 sai.realm=ai->realm;
 594                 sai.password=ai->passwd;
 595                 ms_message("auth_requested(): authenticating realm=%s, username=%s",realm,username);
 596                 sal_op_authenticate(h,&sai);
 597                 ai->usecount++;
 598                 ai->last_use_time=ms_time(NULL);
 599         }else{
 600                 if (ai && ai->works==FALSE) {
 601                         sal_op_cancel_authentication(h);
 602                 }
 603                 if (lc->vtable.auth_info_requested)
 604                         lc->vtable.auth_info_requested(lc,realm,username);
 605         }
 606 }
 607
 608 static void auth_success(SalOp *h, const char *realm, const char *username){
 609         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(h));
 610         LinphoneAuthInfo *ai=(LinphoneAuthInfo*)linphone_core_find_auth_info(lc,realm,username);
 611         if (ai){
 612                 ms_message("%s/%s authentication works.",realm,username);
 613                 ai->works=TRUE;
 614         }
 615 }
 616
 617 static void register_success(SalOp *op, bool_t registered){
 618         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
 619         LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)sal_op_get_user_pointer(op);
 620         char *msg;
 621
 622         if (cfg->deletion_date!=0){
 623                 ms_message("Registration success for removed proxy config, ignored");
 624                 return;
 625         }
 626         linphone_proxy_config_set_error(cfg,LinphoneReasonNone);
 627         linphone_proxy_config_set_state(cfg, registered ? LinphoneRegistrationOk : LinphoneRegistrationCleared ,
 628                                         registered ? "Registration sucessful" : "Unregistration done");
 629         if (lc->vtable.display_status){
 630                 if (registered) msg=ms_strdup_printf(_("Registration on %s successful."),sal_op_get_proxy(op));
 631                 else msg=ms_strdup_printf(_("Unregistration on %s done."),sal_op_get_proxy(op));
 632                 lc->vtable.display_status(lc,msg);
 633                 ms_free(msg);
 634         }
 635
 636 }
 637
 638 static void register_failure(SalOp *op, SalError error, SalReason reason, const char *details){
 639         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
 640         LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)sal_op_get_user_pointer(op);
 641
 642         if (cfg==NULL){
 643                 ms_warning("Registration failed for unknown proxy config.");
 644                 return ;
 645         }
 646         if (cfg->deletion_date!=0){
 647                 ms_message("Registration failed for removed proxy config, ignored");
 648                 return;
 649         }
 650         if (details==NULL)
 651                 details=_("no response timeout");
 652
 653         if (lc->vtable.display_status) {
 654                 char *msg=ortp_strdup_printf(_("Registration on %s failed: %s"),sal_op_get_proxy(op),details  );
 655                 lc->vtable.display_status(lc,msg);
 656                 ms_free(msg);
 657         }
 658         if (error== SalErrorFailure && reason == SalReasonForbidden) {
 659                 linphone_proxy_config_set_error(cfg, LinphoneReasonBadCredentials);
 660         } else if (error == SalErrorNoResponse) {
 661                 linphone_proxy_config_set_error(cfg, LinphoneReasonNoResponse);
 662         }
 663         linphone_proxy_config_set_state(cfg,LinphoneRegistrationFailed,details);
 664         if (error== SalErrorFailure && reason == SalReasonForbidden) {
 665                 const char *realm=NULL,*username=NULL;
 666                 if (sal_op_get_auth_requested(op,&realm,&username)==0){
 667                         if (lc->vtable.auth_info_requested)
 668                                 lc->vtable.auth_info_requested(lc,realm,username);
 669                 }
 670         }
 671 }
 672
 673 static void vfu_request(SalOp *op){
 674 #ifdef VIDEO_ENABLED
 675         LinphoneCall *call=(LinphoneCall*)sal_op_get_user_pointer (op);
 676         if (call==NULL){
 677                 ms_warning("VFU request but no call !");
 678                 return ;
 679         }
 680         if (call->videostream)
 681                 video_stream_send_vfu(call->videostream);
 682 #endif
 683 }
 684
 685 static void dtmf_received(SalOp *op, char dtmf){
 686         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
 687         LinphoneCall *call=(LinphoneCall*)sal_op_get_user_pointer(op);
 688         if (lc->vtable.dtmf_received != NULL)
 689                 lc->vtable.dtmf_received(lc, call, dtmf);
 690 }
 691
 692 static void refer_received(Sal *sal, SalOp *op, const char *referto){
 693         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal);
 694         LinphoneCall *call=(LinphoneCall*)sal_op_get_user_pointer(op);
 695         if (call){
 696                 if (call->refer_to!=NULL){
 697                         ms_free(call->refer_to);
 698                 }
 699                 call->refer_to=ms_strdup(referto);
 700                 call->refer_pending=TRUE;
 701                 linphone_call_set_state(call,LinphoneCallRefered,"Refered");
 702                 if (lc->vtable.display_status){
 703                         char *msg=ms_strdup_printf(_("We are transferred to %s"),referto);
 704                         lc->vtable.display_status(lc,msg);
 705                         ms_free(msg);
 706                 }
 707                 if (call->state!=LinphoneCallPaused){
 708                         ms_message("Automatically pausing current call to accept transfer.");
 709                         linphone_core_pause_call(lc,call);
 710                         call->was_automatically_paused=TRUE;
 711                         /*then we will start the refered when the pause is accepted, in order to serialize transactions within the dialog.
 712                          * Indeed we need to avoid to send a NOTIFY to inform about of state of the refered call while the pause isn't completed.
 713                         **/
 714                 }else linphone_core_start_refered_call(lc,call);
 715         }else if (lc->vtable.refer_received){
 716                 lc->vtable.refer_received(lc,referto);
 717         }
 718 }
 719
 720 static void text_received(Sal *sal, const char *from, const char *msg){
 721         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal);
 722         linphone_core_message_received(lc,from,msg,NULL);
 723 }
 724 void message_external_body_received(Sal *sal, const char *from, const char *url) {
 725         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal);
 726         linphone_core_message_received(lc,from,NULL,url);
 727 }
 728 static void notify(SalOp *op, const char *from, const char *msg){
 729         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
 730         LinphoneCall *call=(LinphoneCall*)sal_op_get_user_pointer (op);
 731         ms_message("get a %s notify from %s",msg,from);
 732         if(lc->vtable.notify_recv)
 733                 lc->vtable.notify_recv(lc,call,from,msg);
 734 }
 735
 736 static void notify_presence(SalOp *op, SalSubscribeStatus ss, SalPresenceStatus status, const char *msg){
 737         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
 738         linphone_notify_recv(lc,op,ss,status);
 739 }
 740
 741 static void subscribe_received(SalOp *op, const char *from){
 742         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
 743         linphone_subscription_new(lc,op,from);
 744 }
 745
 746 static void subscribe_closed(SalOp *op, const char *from){
 747         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
 748         linphone_subscription_closed(lc,op);
 749 }
 750
 751 static void ping_reply(SalOp *op){
 752         LinphoneCall *call=(LinphoneCall*) sal_op_get_user_pointer(op);
 753         ms_message("ping reply !");
 754         if (call){
 755                 if (call->state==LinphoneCallOutgoingInit){
 756                         call->ping_replied=TRUE;
 757                         linphone_core_proceed_with_invite_if_ready(call->core,call,NULL);
 758                 }
 759         }
 760         else
 761         {
 762                 ms_warning("ping reply without call attached...");
 763         }
 764 }
 765
 766 static void notify_refer(SalOp *op, SalReferStatus status){
 767         LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
 768         LinphoneCall *call=(LinphoneCall*) sal_op_get_user_pointer(op);
 769         LinphoneCallState cstate;
 770         if (call==NULL) {
 771                 ms_warning("Receiving notify_refer for unknown call.");
 772                 return ;
 773         }
 774         switch(status){
 775                 case SalReferTrying:
 776                         cstate=LinphoneCallOutgoingProgress;
 777                 break;
 778                 case SalReferSuccess:
 779                         cstate=LinphoneCallConnected;
 780                 break;
 781                 case SalReferFailed:
 782                         cstate=LinphoneCallError;
 783                 break;
 784                 default:
 785                         cstate=LinphoneCallError;
 786         }
 787         linphone_call_set_transfer_state(call, cstate);
 788         if (cstate==LinphoneCallConnected){
 789                 /*automatically terminate the call as the transfer is complete.*/
 790                 linphone_core_terminate_call(lc,call);
 791         }
 792 }
 793
 794 static LinphoneChatMessageState chatStatusSal2Linphone(SalTextDeliveryStatus status){
 795         switch(status){
 796                 case SalTextDeliveryInProgress:
 797                         return LinphoneChatMessageStateInProgress;
 798                 case SalTextDeliveryDone:
 799                         return LinphoneChatMessageStateDelivered;
 800                 case SalTextDeliveryFailed:
 801                         return LinphoneChatMessageStateNotDelivered;
 802         }
 803         return LinphoneChatMessageStateIdle;
 804 }
 805
 806 static void text_delivery_update(SalOp *op, SalTextDeliveryStatus status){
 807         LinphoneChatMessage *chat_msg=(LinphoneChatMessage* )sal_op_get_user_pointer(op);
 808         if (chat_msg && chat_msg->cb) {
 809                 chat_msg->cb(chat_msg
 810                         ,chatStatusSal2Linphone(status)
 811                         ,chat_msg->cb_ud);
 812         }
 813         linphone_chat_message_destroy(chat_msg);
 814 }
 815
 816 SalCallbacks linphone_sal_callbacks={
 817         call_received,
 818         call_ringing,
 819         call_accepted,
 820         call_ack,
 821         call_updating,
 822         call_terminated,
 823         call_failure,
 824         call_released,
 825         auth_requested,
 826         auth_success,
 827         register_success,
 828         register_failure,
 829         vfu_request,
 830         dtmf_received,
 831         refer_received,
 832         text_received,
 833         message_external_body_received,
 834         text_delivery_update,
 835         notify,
 836         notify_presence,
 837         notify_refer,
 838         subscribe_received,
 839         subscribe_closed,
 840         ping_reply,
 841 };
 842
 843