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

   1 /*
   2 linphone
   3 Copyright (C) 2000  Simon MORLAT (simon.morlat@linphone.org)
   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 #define _GNU_SOURCE
  21
  22 #include "linphonecore.h"
  23 #include "sipsetup.h"
  24 #include "lpconfig.h"
  25 #include "private.h"
  26
  27 #include <math.h>
  28 #include <ortp/telephonyevents.h>
  29 #include <ortp/zrtp.h>
  30 #include "mediastreamer2/mediastream.h"
  31 #include "mediastreamer2/mseventqueue.h"
  32 #include "mediastreamer2/msvolume.h"
  33 #include "mediastreamer2/msequalizer.h"
  34 #include "mediastreamer2/dtmfgen.h"
  35
  36 #ifdef INET6
  37 #ifndef WIN32
  38 #include <netdb.h>
  39 #endif
  40 #endif
  41
  42 #ifdef HAVE_CONFIG_H
  43 #include "config.h"
  44 #include "liblinphone_gitversion.h"
  45 #else
  46 #ifndef LIBLINPHONE_GIT_VERSION
  47 #define LIBLINPHONE_GIT_VERSION "unknown"
  48 #endif
  49 #endif
  50
  51
  52 /*#define UNSTANDART_GSM_11K 1*/
  53
  54 #define ROOT_CA_FILE PACKAGE_DATA_DIR "/linphone/rootca.pem"
  55
  56 static const char *liblinphone_version=
  57 #ifdef LIBLINPHONE_GIT_VERSION
  58         LIBLINPHONE_GIT_VERSION
  59 #else
  60         LIBLINPHONE_VERSION
  61 #endif
  62 ;
  63 static void set_network_reachable(LinphoneCore* lc,bool_t isReachable, time_t curtime);
  64 static void linphone_core_run_hooks(LinphoneCore *lc);
  65 static void linphone_core_free_hooks(LinphoneCore *lc);
  66
  67 #include "enum.h"
  68 const char *linphone_core_get_nat_address_resolved(LinphoneCore *lc);
  69 static void toggle_video_preview(LinphoneCore *lc, bool_t val);
  70
  71 /* relative path where is stored local ring*/
  72 #define LOCAL_RING "rings/oldphone.wav"
  73 /* same for remote ring (ringback)*/
  74 #define REMOTE_RING "ringback.wav"
  75 #define HOLD_MUSIC "rings/toy-mono.wav"
  76
  77
  78 extern SalCallbacks linphone_sal_callbacks;
  79
  80 void lc_callback_obj_init(LCCallbackObj *obj,LinphoneCoreCbFunc func,void* ud)
  81 {
  82   obj->_func=func;
  83   obj->_user_data=ud;
  84 }
  85
  86 int lc_callback_obj_invoke(LCCallbackObj *obj, LinphoneCore *lc){
  87         if (obj->_func!=NULL) obj->_func(lc,obj->_user_data);
  88         return 0;
  89 }
  90
  91
  92 /*prevent a gcc bug with %c*/
  93 static size_t my_strftime(char *s, size_t max, const char  *fmt,  const struct tm *tm){
  94 #if !defined(_WIN32_WCE)
  95         return strftime(s, max, fmt, tm);
  96 #else
  97         return 0;
  98         /*FIXME*/
  99 #endif /*_WIN32_WCE*/
 100 }
 101
 102 static void set_call_log_date(LinphoneCallLog *cl, time_t start_time){
 103         struct tm loctime;
 104 #ifdef WIN32
 105 #if !defined(_WIN32_WCE)
 106         loctime=*localtime(&start_time);
 107         /*FIXME*/
 108 #endif /*_WIN32_WCE*/
 109 #else
 110         localtime_r(&start_time,&loctime);
 111 #endif
 112         my_strftime(cl->start_date,sizeof(cl->start_date),"%c",&loctime);
 113 }
 114
 115 LinphoneCallLog * linphone_call_log_new(LinphoneCall *call, LinphoneAddress *from, LinphoneAddress *to){
 116         LinphoneCallLog *cl=ms_new0(LinphoneCallLog,1);
 117         cl->dir=call->dir;
 118         cl->start_date_time=call->start_time;
 119         set_call_log_date(cl,cl->start_date_time);
 120         cl->from=from;
 121         cl->to=to;
 122     cl->status=LinphoneCallAborted; /*default status*/
 123         return cl;
 124 }
 125
 126 void call_logs_write_to_config_file(LinphoneCore *lc){
 127         MSList *elem;
 128         char logsection[32];
 129         int i;
 130         char *tmp;
 131         LpConfig *cfg=lc->config;
 132
 133         if (linphone_core_get_global_state (lc)==LinphoneGlobalStartup) return;
 134
 135         for(i=0,elem=lc->call_logs;elem!=NULL;elem=elem->next,++i){
 136                 LinphoneCallLog *cl=(LinphoneCallLog*)elem->data;
 137                 snprintf(logsection,sizeof(logsection),"call_log_%i",i);
 138                 lp_config_clean_section(cfg,logsection);
 139                 lp_config_set_int(cfg,logsection,"dir",cl->dir);
 140                 lp_config_set_int(cfg,logsection,"status",cl->status);
 141                 tmp=linphone_address_as_string(cl->from);
 142                 lp_config_set_string(cfg,logsection,"from",tmp);
 143                 ms_free(tmp);
 144                 tmp=linphone_address_as_string(cl->to);
 145                 lp_config_set_string(cfg,logsection,"to",tmp);
 146                 ms_free(tmp);
 147                 if (cl->start_date_time)
 148                         lp_config_set_int64(cfg,logsection,"start_date_time",(int64_t)cl->start_date_time);
 149                 else lp_config_set_string(cfg,logsection,"start_date",cl->start_date);
 150                 lp_config_set_int(cfg,logsection,"duration",cl->duration);
 151                 if (cl->refkey) lp_config_set_string(cfg,logsection,"refkey",cl->refkey);
 152                 lp_config_set_float(cfg,logsection,"quality",cl->quality);
 153                 lp_config_set_int(cfg,logsection,"video_enabled", cl->video_enabled);
 154                 lp_config_set_string(cfg,logsection,"call_id",cl->call_id);
 155         }
 156         for(;i<lc->max_call_logs;++i){
 157                 snprintf(logsection,sizeof(logsection),"call_log_%i",i);
 158                 lp_config_clean_section(cfg,logsection);
 159         }
 160 }
 161
 162 static time_t string_to_time(const char *date){
 163 #ifndef WIN32
 164         struct tm tmtime={0};
 165         strptime(date,"%c",&tmtime);
 166         return mktime(&tmtime);
 167 #else
 168         return 0;
 169 #endif
 170 }
 171
 172 static void call_logs_read_from_config_file(LinphoneCore *lc){
 173         char logsection[32];
 174         int i;
 175         const char *tmp;
 176         uint64_t sec;
 177         LpConfig *cfg=lc->config;
 178         for(i=0;;++i){
 179                 snprintf(logsection,sizeof(logsection),"call_log_%i",i);
 180                 if (lp_config_has_section(cfg,logsection)){
 181                         LinphoneCallLog *cl=ms_new0(LinphoneCallLog,1);
 182                         cl->dir=lp_config_get_int(cfg,logsection,"dir",0);
 183                         cl->status=lp_config_get_int(cfg,logsection,"status",0);
 184                         tmp=lp_config_get_string(cfg,logsection,"from",NULL);
 185                         if (tmp) cl->from=linphone_address_new(tmp);
 186                         tmp=lp_config_get_string(cfg,logsection,"to",NULL);
 187                         if (tmp) cl->to=linphone_address_new(tmp);
 188                         sec=lp_config_get_int64(cfg,logsection,"start_date_time",0);
 189                         if (sec) {
 190                                 /*new call log format with date expressed in seconds */
 191                                 cl->start_date_time=(time_t)sec;
 192                                 set_call_log_date(cl,cl->start_date_time);
 193                         }else{
 194                                 tmp=lp_config_get_string(cfg,logsection,"start_date",NULL);
 195                                 if (tmp) {
 196                                         strncpy(cl->start_date,tmp,sizeof(cl->start_date));
 197                                         cl->start_date_time=string_to_time(cl->start_date);
 198                                 }
 199                         }
 200                         cl->duration=lp_config_get_int(cfg,logsection,"duration",0);
 201                         tmp=lp_config_get_string(cfg,logsection,"refkey",NULL);
 202                         if (tmp) cl->refkey=ms_strdup(tmp);
 203                         cl->quality=lp_config_get_float(cfg,logsection,"quality",-1);
 204                         cl->video_enabled=lp_config_get_int(cfg,logsection,"video_enabled",0);
 205                         cl->call_id=lp_config_get_string(cfg,logsection,"call_id",NULL);
 206                         if(cl->call_id) cl->call_id=ms_strdup(cl->call_id);
 207                         lc->call_logs=ms_list_append(lc->call_logs,cl);
 208                 }else break;
 209         }
 210 }
 211
 212
 213
 214 /**
 215  * @addtogroup call_logs
 216  * @{
 217 **/
 218
 219 /**
 220  * Returns a human readable string describing the call.
 221  *
 222  * @note: the returned char* must be freed by the application (use ms_free()).
 223 **/
 224 char * linphone_call_log_to_str(LinphoneCallLog *cl){
 225         char *status;
 226         char *tmp;
 227         char *from=linphone_address_as_string (cl->from);
 228         char *to=linphone_address_as_string (cl->to);
 229         switch(cl->status){
 230                 case LinphoneCallAborted:
 231                         status=_("aborted");
 232                         break;
 233                 case LinphoneCallSuccess:
 234                         status=_("completed");
 235                         break;
 236                 case LinphoneCallMissed:
 237                         status=_("missed");
 238                         break;
 239                 default:
 240                         status="unknown";
 241         }
 242         tmp=ortp_strdup_printf(_("%s at %s\nFrom: %s\nTo: %s\nStatus: %s\nDuration: %i mn %i sec\n"),
 243                         (cl->dir==LinphoneCallIncoming) ? _("Incoming call") : _("Outgoing call"),
 244                         cl->start_date,
 245                         from,
 246                         to,
 247                         status,
 248                         cl->duration/60,
 249                         cl->duration%60);
 250         ms_free(from);
 251         ms_free(to);
 252         return tmp;
 253 }
 254
 255 /**
 256  * Returns RTP statistics computed locally regarding the call.
 257  *
 258 **/
 259 const rtp_stats_t *linphone_call_log_get_local_stats(const LinphoneCallLog *cl){
 260         return &cl->local_stats;
 261 }
 262
 263 /**
 264  * Returns RTP statistics computed by remote end and sent back via RTCP.
 265  *
 266  * @note Not implemented yet.
 267 **/
 268 const rtp_stats_t *linphone_call_log_get_remote_stats(const LinphoneCallLog *cl){
 269         return &cl->remote_stats;
 270 }
 271
 272 void linphone_call_log_set_user_pointer(LinphoneCallLog *cl, void *up){
 273         cl->user_pointer=up;
 274 }
 275
 276 void *linphone_call_log_get_user_pointer(const LinphoneCallLog *cl){
 277         return cl->user_pointer;
 278 }
 279
 280
 281
 282 /**
 283  * Associate a persistent reference key to the call log.
 284  *
 285  * The reference key can be for example an id to an external database.
 286  * It is stored in the config file, thus can survive to process exits/restarts.
 287  *
 288 **/
 289 void linphone_call_log_set_ref_key(LinphoneCallLog *cl, const char *refkey){
 290         if (cl->refkey!=NULL){
 291                 ms_free(cl->refkey);
 292                 cl->refkey=NULL;
 293         }
 294         if (refkey) cl->refkey=ms_strdup(refkey);
 295 }
 296
 297 /**
 298  * Get the persistent reference key associated to the call log.
 299  *
 300  * The reference key can be for example an id to an external database.
 301  * It is stored in the config file, thus can survive to process exits/restarts.
 302  *
 303 **/
 304 const char *linphone_call_log_get_ref_key(const LinphoneCallLog *cl){
 305         return cl->refkey;
 306 }
 307
 308 /** @} */
 309
 310 void linphone_call_log_destroy(LinphoneCallLog *cl){
 311         if (cl->from!=NULL) linphone_address_destroy(cl->from);
 312         if (cl->to!=NULL) linphone_address_destroy(cl->to);
 313         if (cl->refkey!=NULL) ms_free(cl->refkey);
 314         if (cl->call_id) ms_free((void*)cl->call_id);
 315         ms_free(cl);
 316 }
 317
 318 /**
 319  * Returns TRUE if the LinphoneCall asked to autoanswer
 320  *
 321 **/
 322 bool_t linphone_call_asked_to_autoanswer(LinphoneCall *call){
 323         //return TRUE if the unique(for the moment) incoming call asked to be autoanswered
 324         if(call)
 325                 return sal_call_autoanswer_asked(call->op);
 326         else
 327                 return FALSE;
 328 }
 329
 330 int linphone_core_get_current_call_duration(const LinphoneCore *lc){
 331         LinphoneCall *call=linphone_core_get_current_call((LinphoneCore *)lc);
 332         if (call)  return linphone_call_get_duration(call);
 333         return -1;
 334 }
 335
 336 const LinphoneAddress *linphone_core_get_current_call_remote_address(struct _LinphoneCore *lc){
 337         LinphoneCall *call=linphone_core_get_current_call(lc);
 338         if (call==NULL) return NULL;
 339         return linphone_call_get_remote_address(call);
 340 }
 341
 342 /**
 343  * Enable logs in supplied FILE*.
 344  *
 345  * @ingroup misc
 346  *
 347  * @param file a C FILE* where to fprintf logs. If null stdout is used.
 348  *
 349 **/
 350 void linphone_core_enable_logs(FILE *file){
 351         if (file==NULL) file=stdout;
 352         ortp_set_log_file(file);
 353         ortp_set_log_level_mask(ORTP_MESSAGE|ORTP_WARNING|ORTP_ERROR|ORTP_FATAL);
 354 }
 355
 356 /**
 357  * Enable logs through the user's supplied log callback.
 358  *
 359  * @ingroup misc
 360  *
 361  * @param logfunc The address of a OrtpLogFunc callback whose protoype is
 362  *                typedef void (*OrtpLogFunc)(OrtpLogLevel lev, const char *fmt, va_list args);
 363  *
 364 **/
 365 void linphone_core_enable_logs_with_cb(OrtpLogFunc logfunc){
 366         ortp_set_log_level_mask(ORTP_MESSAGE|ORTP_WARNING|ORTP_ERROR|ORTP_FATAL);
 367         ortp_set_log_handler(logfunc);
 368 }
 369
 370 /**
 371  * Entirely disable logging.
 372  *
 373  * @ingroup misc
 374 **/
 375 void linphone_core_disable_logs(){
 376         ortp_set_log_level_mask(ORTP_ERROR|ORTP_FATAL);
 377 }
 378
 379
 380 static void net_config_read (LinphoneCore *lc)
 381 {
 382         int tmp;
 383         const char *tmpstr;
 384         LpConfig *config=lc->config;
 385
 386         lc->net_conf.nat_address_ip = NULL;
 387         tmp=lp_config_get_int(config,"net","download_bw",0);
 388         linphone_core_set_download_bandwidth(lc,tmp);
 389         tmp=lp_config_get_int(config,"net","upload_bw",0);
 390         linphone_core_set_upload_bandwidth(lc,tmp);
 391         linphone_core_set_stun_server(lc,lp_config_get_string(config,"net","stun_server",NULL));
 392         tmpstr=lp_config_get_string(lc->config,"net","nat_address",NULL);
 393         if (tmpstr!=NULL && (strlen(tmpstr)<1)) tmpstr=NULL;
 394         linphone_core_set_nat_address(lc,tmpstr);
 395         tmp=lp_config_get_int(lc->config,"net","firewall_policy",0);
 396         linphone_core_set_firewall_policy(lc,tmp);
 397         tmp=lp_config_get_int(lc->config,"net","nat_sdp_only",0);
 398         lc->net_conf.nat_sdp_only=tmp;
 399         tmp=lp_config_get_int(lc->config,"net","mtu",0);
 400         linphone_core_set_mtu(lc,tmp);
 401         tmp=lp_config_get_int(lc->config,"net","download_ptime",0);
 402         linphone_core_set_download_ptime(lc,tmp);
 403
 404 }
 405
 406 static void build_sound_devices_table(LinphoneCore *lc){
 407         const char **devices;
 408         const char **old;
 409         int ndev;
 410         int i;
 411         const MSList *elem=ms_snd_card_manager_get_list(ms_snd_card_manager_get());
 412         ndev=ms_list_size(elem);
 413         devices=ms_malloc((ndev+1)*sizeof(const char *));
 414         for (i=0;elem!=NULL;elem=elem->next,i++){
 415                 devices[i]=ms_snd_card_get_string_id((MSSndCard *)elem->data);
 416         }
 417         devices[ndev]=NULL;
 418         old=lc->sound_conf.cards;
 419         lc->sound_conf.cards=devices;
 420         if (old!=NULL) ms_free(old);
 421 }
 422
 423 static void sound_config_read(LinphoneCore *lc)
 424 {
 425         int tmp;
 426         const char *tmpbuf;
 427         const char *devid;
 428 #ifdef __linux
 429         /*alsadev let the user use custom alsa device within linphone*/
 430         devid=lp_config_get_string(lc->config,"sound","alsadev",NULL);
 431         if (devid){
 432                 MSSndCard *card=ms_alsa_card_new_custom(devid,devid);
 433                 ms_snd_card_manager_add_card(ms_snd_card_manager_get(),card);
 434         }
 435         tmp=lp_config_get_int(lc->config,"sound","alsa_forced_rate",-1);
 436         if (tmp>0) ms_alsa_card_set_forced_sample_rate(tmp);
 437 #endif
 438         /* retrieve all sound devices */
 439         build_sound_devices_table(lc);
 440
 441         devid=lp_config_get_string(lc->config,"sound","playback_dev_id",NULL);
 442         linphone_core_set_playback_device(lc,devid);
 443
 444         devid=lp_config_get_string(lc->config,"sound","ringer_dev_id",NULL);
 445         linphone_core_set_ringer_device(lc,devid);
 446
 447         devid=lp_config_get_string(lc->config,"sound","capture_dev_id",NULL);
 448         linphone_core_set_capture_device(lc,devid);
 449
 450 /*
 451         tmp=lp_config_get_int(lc->config,"sound","play_lev",80);
 452         linphone_core_set_play_level(lc,tmp);
 453         tmp=lp_config_get_int(lc->config,"sound","ring_lev",80);
 454         linphone_core_set_ring_level(lc,tmp);
 455         tmp=lp_config_get_int(lc->config,"sound","rec_lev",80);
 456         linphone_core_set_rec_level(lc,tmp);
 457         tmpbuf=lp_config_get_string(lc->config,"sound","source","m");
 458         linphone_core_set_sound_source(lc,tmpbuf[0]);
 459 */
 460
 461         tmpbuf=PACKAGE_SOUND_DIR "/" LOCAL_RING;
 462         tmpbuf=lp_config_get_string(lc->config,"sound","local_ring",tmpbuf);
 463         if (ortp_file_exist(tmpbuf)==-1) {
 464                 ms_warning("%s does not exist",tmpbuf);
 465                 tmpbuf=PACKAGE_SOUND_DIR "/" LOCAL_RING;
 466         }
 467         if (strstr(tmpbuf,".wav")==NULL){
 468                 /* it currently uses old sound files, so replace them */
 469                 tmpbuf=PACKAGE_SOUND_DIR "/" LOCAL_RING;
 470         }
 471         linphone_core_set_ring(lc,tmpbuf);
 472
 473         tmpbuf=PACKAGE_SOUND_DIR "/" REMOTE_RING;
 474         tmpbuf=lp_config_get_string(lc->config,"sound","remote_ring",tmpbuf);
 475         if (ortp_file_exist(tmpbuf)==-1){
 476                 tmpbuf=PACKAGE_SOUND_DIR "/" REMOTE_RING;
 477         }
 478         if (strstr(tmpbuf,".wav")==NULL){
 479                 /* it currently uses old sound files, so replace them */
 480                 tmpbuf=PACKAGE_SOUND_DIR "/" REMOTE_RING;
 481         }
 482         linphone_core_set_ringback(lc,tmpbuf);
 483
 484         linphone_core_set_play_file(lc,lp_config_get_string(lc->config,"sound","hold_music",PACKAGE_SOUND_DIR "/" HOLD_MUSIC));
 485         check_sound_device(lc);
 486         lc->sound_conf.latency=0;
 487 #ifndef __ios
 488     tmp=TRUE;
 489 #else
 490     tmp=FALSE; /* on iOS we have builtin echo cancellation.*/
 491 #endif
 492     tmp=lp_config_get_int(lc->config,"sound","echocancellation",tmp);
 493         linphone_core_enable_echo_cancellation(lc,tmp);
 494         linphone_core_enable_echo_limiter(lc,
 495                 lp_config_get_int(lc->config,"sound","echolimiter",0));
 496         linphone_core_enable_agc(lc,
 497                 lp_config_get_int(lc->config,"sound","agc",0));
 498
 499         linphone_core_set_playback_gain_db (lc,lp_config_get_float(lc->config,"sound","playback_gain_db",0));
 500         linphone_core_set_mic_gain_db (lc,lp_config_get_float(lc->config,"sound","mic_gain_db",0));
 501
 502         linphone_core_set_remote_ringback_tone (lc,lp_config_get_string(lc->config,"sound","ringback_tone",NULL));
 503
 504         /*just parse requested stream feature once at start to print out eventual errors*/
 505         linphone_core_get_audio_features(lc);
 506 }
 507
 508 static void sip_config_read(LinphoneCore *lc)
 509 {
 510         char *contact;
 511         const char *tmpstr;
 512         LCSipTransports tr;
 513         int i,tmp;
 514         int ipv6;
 515         int random_port;
 516
 517         tmp=lp_config_get_int(lc->config,"sip","use_info",0);
 518         linphone_core_set_use_info_for_dtmf(lc,tmp);
 519
 520         if (lp_config_get_int(lc->config,"sip","use_session_timers",0)==1){
 521                 sal_use_session_timers(lc->sal,200);
 522         }
 523
 524         sal_use_rport(lc->sal,lp_config_get_int(lc->config,"sip","use_rport",1));
 525         sal_use_101(lc->sal,lp_config_get_int(lc->config,"sip","use_101",1));
 526         sal_reuse_authorization(lc->sal, lp_config_get_int(lc->config,"sip","reuse_authorization",0));
 527         sal_expire_old_registration_contacts(lc->sal,lp_config_get_int(lc->config,"sip","expire_old_registration_contacts",0));
 528
 529         tmp=lp_config_get_int(lc->config,"sip","use_rfc2833",1);
 530         linphone_core_set_use_rfc2833_for_dtmf(lc,tmp);
 531
 532         ipv6=lp_config_get_int(lc->config,"sip","use_ipv6",-1);
 533         if (ipv6==-1){
 534                 ipv6=0;
 535         }
 536         linphone_core_enable_ipv6(lc,ipv6);
 537         memset(&tr,0,sizeof(tr));
 538
 539         tr.udp_port=lp_config_get_int(lc->config,"sip","sip_port",0);
 540         tr.tcp_port=lp_config_get_int(lc->config,"sip","sip_tcp_port",0);
 541         tr.tls_port=lp_config_get_int(lc->config,"sip","sip_tls_port",0);
 542
 543         if (lp_config_get_int(lc->config,"sip","sip_random_port",0)==1)
 544                 random_port=(0xDFFF&random())+1024;
 545         else random_port=0;
 546
 547         if (tr.udp_port==0 && tr.tcp_port==0 && tr.tls_port==0){
 548                 tr.udp_port=5060;
 549         }
 550
 551         if (tr.udp_port>0 && random_port){
 552                 tr.udp_port=random_port;
 553                 tr.tls_port=tr.tcp_port=0; /*make sure only one transport is active at a time*/
 554         }else if (tr.tcp_port>0 && random_port){
 555                 tr.tcp_port=random_port;
 556                 tr.tls_port=tr.udp_port=0; /*make sure only one transport is active at a time*/
 557         }else if (tr.tls_port>0 && random_port){
 558                 tr.tls_port=random_port;
 559                 tr.udp_port=tr.tcp_port=0; /*make sure only one transport is active at a time*/
 560         }
 561
 562 #ifdef __linux
 563         sal_set_root_ca(lc->sal, lp_config_get_string(lc->config,"sip","root_ca", "/etc/ssl/certs"));
 564 #else
 565         sal_set_root_ca(lc->sal, lp_config_get_string(lc->config,"sip","root_ca", ROOT_CA_FILE));
 566 #endif
 567         linphone_core_verify_server_certificates(lc,lp_config_get_int(lc->config,"sip","verify_server_certs",TRUE));
 568         /*setting the dscp must be done before starting the transports, otherwise it is not taken into effect*/
 569         sal_set_dscp(lc->sal,linphone_core_get_sip_dscp(lc));
 570         /*start listening on ports*/
 571         linphone_core_set_sip_transports(lc,&tr);
 572
 573         tmpstr=lp_config_get_string(lc->config,"sip","contact",NULL);
 574         if (tmpstr==NULL || linphone_core_set_primary_contact(lc,tmpstr)==-1) {
 575                 const char *hostname=NULL;
 576                 const char *username=NULL;
 577 #ifdef HAVE_GETENV
 578                 hostname=getenv("HOST");
 579                 username=getenv("USER");
 580                 if (hostname==NULL) hostname=getenv("HOSTNAME");
 581 #endif /*HAVE_GETENV*/
 582                 if (hostname==NULL)
 583                         hostname="unknown-host";
 584                 if (username==NULL){
 585                         username="toto";
 586                 }
 587                 contact=ortp_strdup_printf("sip:%s@%s",username,hostname);
 588                 linphone_core_set_primary_contact(lc,contact);
 589                 ms_free(contact);
 590         }
 591
 592         tmp=lp_config_get_int(lc->config,"sip","guess_hostname",1);
 593         linphone_core_set_guess_hostname(lc,tmp);
 594
 595
 596         tmp=lp_config_get_int(lc->config,"sip","inc_timeout",30);
 597         linphone_core_set_inc_timeout(lc,tmp);
 598
 599         tmp=lp_config_get_int(lc->config,"sip","in_call_timeout",0);
 600         linphone_core_set_in_call_timeout(lc,tmp);
 601
 602         /* get proxies config */
 603         for(i=0;; i++){
 604                 LinphoneProxyConfig *cfg=linphone_proxy_config_new_from_config_file(lc->config,i);
 605                 if (cfg!=NULL){
 606                         linphone_core_add_proxy_config(lc,cfg);
 607                 }else{
 608                         break;
 609                 }
 610         }
 611         /* get the default proxy */
 612         tmp=lp_config_get_int(lc->config,"sip","default_proxy",-1);
 613         linphone_core_set_default_proxy_index(lc,tmp);
 614
 615         /* read authentication information */
 616         for(i=0;; i++){
 617                 LinphoneAuthInfo *ai=linphone_auth_info_new_from_config_file(lc->config,i);
 618                 if (ai!=NULL){
 619                         linphone_core_add_auth_info(lc,ai);
 620                         linphone_auth_info_destroy(ai);
 621                 }else{
 622                         break;
 623                 }
 624         }
 625         /*this is to filter out unsupported encryption schemes*/
 626         linphone_core_set_media_encryption(lc,linphone_core_get_media_encryption(lc));
 627
 628         /*for tuning or test*/
 629         lc->sip_conf.sdp_200_ack=lp_config_get_int(lc->config,"sip","sdp_200_ack",0);
 630         lc->sip_conf.register_only_when_network_is_up=
 631                 lp_config_get_int(lc->config,"sip","register_only_when_network_is_up",1);
 632         lc->sip_conf.ping_with_options=lp_config_get_int(lc->config,"sip","ping_with_options",1);
 633         lc->sip_conf.auto_net_state_mon=lp_config_get_int(lc->config,"sip","auto_net_state_mon",1);
 634         lc->sip_conf.keepalive_period=lp_config_get_int(lc->config,"sip","keepalive_period",10000);
 635         sal_set_keepalive_period(lc->sal,lc->sip_conf.keepalive_period);
 636         sal_use_one_matching_codec_policy(lc->sal,lp_config_get_int(lc->config,"sip","only_one_codec",0));
 637         sal_use_double_registrations(lc->sal,lp_config_get_int(lc->config,"sip","use_double_registrations",1));
 638         sal_use_dates(lc->sal,lp_config_get_int(lc->config,"sip","put_date",0));
 639 }
 640
 641 static void rtp_config_read(LinphoneCore *lc)
 642 {
 643         int min_port, max_port;
 644         int jitt_comp;
 645         int nortp_timeout;
 646         bool_t rtp_no_xmit_on_audio_mute;
 647         bool_t adaptive_jitt_comp_enabled;
 648
 649         if (lp_config_get_range(lc->config, "rtp", "audio_rtp_port", &min_port, &max_port, 7078, 7078) == TRUE) {
 650                 if (min_port <= 0) min_port = 1;
 651                 if (max_port > 65535) max_port = 65535;
 652                 linphone_core_set_audio_port_range(lc, min_port, max_port);
 653         } else {
 654                 min_port = lp_config_get_int(lc->config, "rtp", "audio_rtp_port", 7078);
 655                 linphone_core_set_audio_port(lc, min_port);
 656         }
 657
 658         if (lp_config_get_range(lc->config, "rtp", "video_rtp_port", &min_port, &max_port, 9078, 9078) == TRUE) {
 659                 if (min_port <= 0) min_port = 1;
 660                 if (max_port > 65535) max_port = 65535;
 661                 linphone_core_set_video_port_range(lc, min_port, max_port);
 662         } else {
 663                 min_port = lp_config_get_int(lc->config, "rtp", "video_rtp_port", 9078);
 664                 linphone_core_set_video_port(lc, min_port);
 665         }
 666
 667         jitt_comp=lp_config_get_int(lc->config,"rtp","audio_jitt_comp",60);
 668         linphone_core_set_audio_jittcomp(lc,jitt_comp);
 669         jitt_comp=lp_config_get_int(lc->config,"rtp","video_jitt_comp",60);
 670         if (jitt_comp==0) jitt_comp=60;
 671         linphone_core_set_video_jittcomp(lc,jitt_comp);
 672         nortp_timeout=lp_config_get_int(lc->config,"rtp","nortp_timeout",30);
 673         linphone_core_set_nortp_timeout(lc,nortp_timeout);
 674         rtp_no_xmit_on_audio_mute=lp_config_get_int(lc->config,"rtp","rtp_no_xmit_on_audio_mute",FALSE);
 675         linphone_core_set_rtp_no_xmit_on_audio_mute(lc,rtp_no_xmit_on_audio_mute);
 676         adaptive_jitt_comp_enabled = lp_config_get_int(lc->config, "rtp", "audio_adaptive_jitt_comp_enabled", TRUE);
 677         linphone_core_enable_audio_adaptive_jittcomp(lc, adaptive_jitt_comp_enabled);
 678         adaptive_jitt_comp_enabled = lp_config_get_int(lc->config, "rtp", "video_adaptive_jitt_comp_enabled", TRUE);
 679         linphone_core_enable_video_adaptive_jittcomp(lc, adaptive_jitt_comp_enabled);
 680 }
 681
 682 static PayloadType * find_payload(RtpProfile *prof, const char *mime_type, int clock_rate, int channels, const char *recv_fmtp){
 683         PayloadType *candidate=NULL;
 684         int i;
 685         PayloadType *it;
 686         for(i=0;i<RTP_PROFILE_MAX_PAYLOADS;++i){
 687                 it=rtp_profile_get_payload(prof,i);
 688                 if (it!=NULL && strcasecmp(mime_type,it->mime_type)==0
 689                         && (clock_rate==it->clock_rate || clock_rate<=0)
 690                         && (channels==it->channels || channels<=0) ){
 691                         if ( (recv_fmtp && it->recv_fmtp && strstr(recv_fmtp,it->recv_fmtp)!=NULL) ||
 692                                 (recv_fmtp==NULL && it->recv_fmtp==NULL) ){
 693                                 /*exact match*/
 694                                 if (recv_fmtp) payload_type_set_recv_fmtp(it,recv_fmtp);
 695                                 return it;
 696                         }else {
 697                                 if (candidate){
 698                                         if (it->recv_fmtp==NULL) candidate=it;
 699                                 }else candidate=it;
 700                         }
 701                 }
 702         }
 703         if (candidate && recv_fmtp){
 704                 payload_type_set_recv_fmtp(candidate,recv_fmtp);
 705         }
 706         return candidate;
 707 }
 708
 709 static bool_t get_codec(LpConfig *config, const char* type, int index, PayloadType **ret){
 710         char codeckey[50];
 711         const char *mime,*fmtp;
 712         int rate,channels,enabled;
 713         PayloadType *pt;
 714
 715         *ret=NULL;
 716         snprintf(codeckey,50,"%s_%i",type,index);
 717         mime=lp_config_get_string(config,codeckey,"mime",NULL);
 718         if (mime==NULL || strlen(mime)==0 ) return FALSE;
 719
 720         rate=lp_config_get_int(config,codeckey,"rate",8000);
 721         fmtp=lp_config_get_string(config,codeckey,"recv_fmtp",NULL);
 722         channels=lp_config_get_int(config,codeckey,"channels",0);
 723         enabled=lp_config_get_int(config,codeckey,"enabled",1);
 724         pt=find_payload(&av_profile,mime,rate,channels,fmtp);
 725         if (pt && enabled ) pt->flags|=PAYLOAD_TYPE_ENABLED;
 726         //ms_message("Found codec %s/%i",pt->mime_type,pt->clock_rate);
 727         if (pt==NULL) ms_warning("Ignoring codec config %s/%i with fmtp=%s because unsupported",
 728                         mime,rate,fmtp ? fmtp : "");
 729         *ret=pt;
 730         return TRUE;
 731 }
 732
 733 #define RANK_END 10000
 734
 735 typedef struct codec_desc{
 736         const char *name;
 737         int rate;
 738 }codec_desc_t;
 739
 740 static codec_desc_t codec_pref_order[]={
 741         {"SILK", 16000},
 742         {"speex", 16000},
 743         {"speex", 8000},
 744         {"pcmu",8000},
 745         {"pcma",8000},
 746         {"VP8",90000},
 747         {"H264",90000},
 748         {"MP4V-ES",90000},
 749         {NULL,0}
 750 };
 751
 752 static int find_codec_rank(const char *mime, int clock_rate){
 753         int i;
 754         for(i=0;codec_pref_order[i].name!=NULL;++i){
 755                 if (strcasecmp(codec_pref_order[i].name,mime)==0 && clock_rate==codec_pref_order[i].rate)
 756                         return i;
 757         }
 758         return RANK_END;
 759 }
 760
 761 static int codec_compare(const PayloadType *a, const PayloadType *b){
 762         int ra,rb;
 763         ra=find_codec_rank(a->mime_type,a->clock_rate);
 764         rb=find_codec_rank(b->mime_type,b->clock_rate);
 765         if (ra>rb) return 1;
 766         if (ra<rb) return -1;
 767         return 0;
 768 }
 769
 770 static MSList *add_missing_codecs(SalStreamType mtype, MSList *l){
 771         int i;
 772         for(i=0;i<RTP_PROFILE_MAX_PAYLOADS;++i){
 773                 PayloadType *pt=rtp_profile_get_payload(&av_profile,i);
 774                 if (pt){
 775                         if (mtype==SalVideo && pt->type!=PAYLOAD_VIDEO)
 776                                 pt=NULL;
 777                         else if (mtype==SalAudio && (pt->type!=PAYLOAD_AUDIO_PACKETIZED
 778                             && pt->type!=PAYLOAD_AUDIO_CONTINUOUS)){
 779                                 pt=NULL;
 780                         }
 781                         if (pt && ms_filter_codec_supported(pt->mime_type)){
 782                                 if (ms_list_find(l,pt)==NULL){
 783                                         /*unranked codecs are disabled by default*/
 784                                         if (find_codec_rank(pt->mime_type, pt->clock_rate)!=RANK_END){
 785                                                 payload_type_set_flag(pt,PAYLOAD_TYPE_ENABLED);
 786                                         }
 787                                         ms_message("Adding new codec %s/%i with fmtp %s",
 788                                             pt->mime_type,pt->clock_rate,pt->recv_fmtp ? pt->recv_fmtp : "");
 789                                         l=ms_list_insert_sorted(l,pt,(int (*)(const void *, const void *))codec_compare);
 790                                 }
 791                         }
 792                 }
 793         }
 794         return l;
 795 }
 796
 797 static MSList *codec_append_if_new(MSList *l, PayloadType *pt){
 798         MSList *elem;
 799         for (elem=l;elem!=NULL;elem=elem->next){
 800                 PayloadType *ept=(PayloadType*)elem->data;
 801                 if (pt==ept)
 802                         return l;
 803         }
 804         l=ms_list_append(l,pt);
 805         return l;
 806 }
 807
 808 static void codecs_config_read(LinphoneCore *lc)
 809 {
 810         int i;
 811         PayloadType *pt;
 812         MSList *audio_codecs=NULL;
 813         MSList *video_codecs=NULL;
 814         for (i=0;get_codec(lc->config,"audio_codec",i,&pt);i++){
 815                 if (pt){
 816                         if (!ms_filter_codec_supported(pt->mime_type)){
 817                                 ms_warning("Codec %s is not supported by mediastreamer2, removed.",pt->mime_type);
 818                         }else audio_codecs=codec_append_if_new(audio_codecs,pt);
 819                 }
 820         }
 821         audio_codecs=add_missing_codecs(SalAudio,audio_codecs);
 822         for (i=0;get_codec(lc->config,"video_codec",i,&pt);i++){
 823                 if (pt){
 824                         if (!ms_filter_codec_supported(pt->mime_type)){
 825                                 ms_warning("Codec %s is not supported by mediastreamer2, removed.",pt->mime_type);
 826                         }else video_codecs=codec_append_if_new(video_codecs,(void *)pt);
 827                 }
 828         }
 829         video_codecs=add_missing_codecs(SalVideo,video_codecs);
 830         linphone_core_set_audio_codecs(lc,audio_codecs);
 831         linphone_core_set_video_codecs(lc,video_codecs);
 832         linphone_core_update_allocated_audio_bandwidth(lc);
 833 }
 834
 835 static void build_video_devices_table(LinphoneCore *lc){
 836         const MSList *elem;
 837         int i;
 838         int ndev;
 839         const char **devices;
 840         if (lc->video_conf.cams)
 841                 ms_free(lc->video_conf.cams);
 842         /* retrieve all video devices */
 843         elem=ms_web_cam_manager_get_list(ms_web_cam_manager_get());
 844         ndev=ms_list_size(elem);
 845         devices=ms_malloc((ndev+1)*sizeof(const char *));
 846         for (i=0;elem!=NULL;elem=elem->next,i++){
 847                 devices[i]=ms_web_cam_get_string_id((MSWebCam *)elem->data);
 848         }
 849         devices[ndev]=NULL;
 850         lc->video_conf.cams=devices;
 851 }
 852
 853 static void video_config_read(LinphoneCore *lc){
 854 #ifdef VIDEO_ENABLED
 855         int capture, display, self_view;
 856 #endif
 857         const char *str;
 858 #ifdef VIDEO_ENABLED
 859         LinphoneVideoPolicy vpol;
 860         memset(&vpol, 0, sizeof(LinphoneVideoPolicy));
 861 #endif
 862         build_video_devices_table(lc);
 863
 864         str=lp_config_get_string(lc->config,"video","device",NULL);
 865         if (str && str[0]==0) str=NULL;
 866         linphone_core_set_video_device(lc,str);
 867
 868         linphone_core_set_preferred_video_size_by_name(lc,
 869                 lp_config_get_string(lc->config,"video","size","cif"));
 870
 871 #ifdef VIDEO_ENABLED
 872         capture=lp_config_get_int(lc->config,"video","capture",1);
 873         display=lp_config_get_int(lc->config,"video","display",1);
 874         self_view=lp_config_get_int(lc->config,"video","self_view",1);
 875         vpol.automatically_initiate=lp_config_get_int(lc->config,"video","automatically_initiate",1);
 876         vpol.automatically_accept=lp_config_get_int(lc->config,"video","automatically_accept",1);
 877         lc->video_conf.displaytype=lp_config_get_string(lc->config,"video","displaytype",NULL);
 878         if(lc->video_conf.displaytype)
 879                 ms_message("we are using a specific display:%s\n",lc->video_conf.displaytype);
 880
 881         linphone_core_enable_video(lc,capture,display);
 882         linphone_core_enable_video_preview(lc,lp_config_get_int(lc->config,"video","show_local",0));
 883         linphone_core_enable_self_view(lc,self_view);
 884         linphone_core_set_video_policy(lc,&vpol);
 885 #endif
 886 }
 887
 888 static void ui_config_read(LinphoneCore *lc)
 889 {
 890         LinphoneFriend *lf;
 891         int i;
 892         for (i=0;(lf=linphone_friend_new_from_config_file(lc,i))!=NULL;i++){
 893                 linphone_core_add_friend(lc,lf);
 894         }
 895         call_logs_read_from_config_file(lc);
 896 }
 897
 898 /*
 899 static void autoreplier_config_init(LinphoneCore *lc)
 900 {
 901         autoreplier_config_t *config=&lc->autoreplier_conf;
 902         config->enabled=lp_config_get_int(lc->config,"autoreplier","enabled",0);
 903         config->after_seconds=lp_config_get_int(lc->config,"autoreplier","after_seconds",6);
 904         config->max_users=lp_config_get_int(lc->config,"autoreplier","max_users",1);
 905         config->max_rec_time=lp_config_get_int(lc->config,"autoreplier","max_rec_time",60);
 906         config->max_rec_msg=lp_config_get_int(lc->config,"autoreplier","max_rec_msg",10);
 907         config->message=lp_config_get_string(lc->config,"autoreplier","message",NULL);
 908 }
 909 */
 910
 911 bool_t linphone_core_tunnel_available(void){
 912 #ifdef TUNNEL_ENABLED
 913         return TRUE;
 914 #else
 915         return FALSE;
 916 #endif
 917 }
 918
 919 /**
 920  * Enable adaptive rate control (experimental feature, audio-only).
 921  *
 922  * Adaptive rate control consists in using RTCP feedback provided information to dynamically
 923  * control the output bitrate of the encoders, so that we can adapt to the network conditions and
 924  * available bandwidth.
 925 **/
 926 void linphone_core_enable_adaptive_rate_control(LinphoneCore *lc, bool_t enabled){
 927         lp_config_set_int(lc->config,"net","adaptive_rate_control",(int)enabled);
 928 }
 929
 930 /**
 931  * Returns whether adaptive rate control is enabled.
 932  *
 933  * See linphone_core_enable_adaptive_rate_control().
 934 **/
 935 bool_t linphone_core_adaptive_rate_control_enabled(const LinphoneCore *lc){
 936         return lp_config_get_int(lc->config,"net","adaptive_rate_control",TRUE);
 937 }
 938
 939 bool_t linphone_core_rtcp_enabled(const LinphoneCore *lc){
 940         return lp_config_get_int(lc->config,"rtp","rtcp_enabled",TRUE);
 941 }
 942
 943 /**
 944  * Sets maximum available download bandwidth
 945  *
 946  * @ingroup media_parameters
 947  *
 948  * This is IP bandwidth, in kbit/s.
 949  * This information is used signaled to other parties during
 950  * calls (within SDP messages) so that the remote end can have
 951  * sufficient knowledge to properly configure its audio & video
 952  * codec output bitrate to not overflow available bandwidth.
 953  *
 954  * @param lc the LinphoneCore object
 955  * @param bw the bandwidth in kbits/s, 0 for infinite
 956  */
 957 void linphone_core_set_download_bandwidth(LinphoneCore *lc, int bw){
 958         lc->net_conf.download_bw=bw;
 959         if (linphone_core_ready(lc)) lp_config_set_int(lc->config,"net","download_bw",bw);
 960 }
 961
 962 /**
 963  * Sets maximum available upload bandwidth
 964  *
 965  * @ingroup media_parameters
 966  *
 967  * This is IP bandwidth, in kbit/s.
 968  * This information is used by liblinphone together with remote
 969  * side available bandwidth signaled in SDP messages to properly
 970  * configure audio & video codec's output bitrate.
 971  *
 972  * @param lc the LinphoneCore object
 973  * @param bw the bandwidth in kbits/s, 0 for infinite
 974  */
 975 void linphone_core_set_upload_bandwidth(LinphoneCore *lc, int bw){
 976         lc->net_conf.upload_bw=bw;
 977         if (linphone_core_ready(lc)) lp_config_set_int(lc->config,"net","upload_bw",bw);
 978 }
 979
 980 /**
 981  * Retrieve the maximum available download bandwidth.
 982  *
 983  * @ingroup media_parameters
 984  *
 985  * This value was set by linphone_core_set_download_bandwidth().
 986  *
 987 **/
 988 int linphone_core_get_download_bandwidth(const LinphoneCore *lc){
 989         return lc->net_conf.download_bw;
 990 }
 991
 992 /**
 993  * Retrieve the maximum available upload bandwidth.
 994  *
 995  * @ingroup media_parameters
 996  *
 997  * This value was set by linphone_core_set_upload_bandwidth().
 998  *
 999 **/
1000 int linphone_core_get_upload_bandwidth(const LinphoneCore *lc){
1001         return lc->net_conf.upload_bw;
1002 }
1003 /**
1004  * Set audio packetization time linphone expects to receive from peer
1005  */
1006 void linphone_core_set_download_ptime(LinphoneCore *lc, int ptime) {
1007         lp_config_set_int(lc->config,"rtp","download_ptime",ptime);
1008 }
1009
1010 /**
1011  * Get audio packetization time linphone expects to receive from peer
1012  */
1013 int linphone_core_get_download_ptime(LinphoneCore *lc) {
1014         return lp_config_get_int(lc->config,"rtp","download_ptime",0);
1015 }
1016
1017 /**
1018  * Set audio packetization time linphone will send (in absence of requirement from peer)
1019  * A value of 0 stands for the current codec default packetization time.
1020  *
1021 **/
1022 void linphone_core_set_upload_ptime(LinphoneCore *lc, int ptime){
1023         lp_config_set_int(lc->config,"rtp","upload_ptime",ptime);
1024 }
1025
1026 /**
1027  * Set audio packetization time linphone will send (in absence of requirement from peer)
1028  * A value of 0 stands for the current codec default packetization time.
1029  *
1030 **/
1031 int linphone_core_get_upload_ptime(LinphoneCore *lc){
1032         return lp_config_get_int(lc->config,"rtp","upload_ptime",0);
1033 }
1034
1035
1036
1037 /**
1038  * Returns liblinphone's version as a string.
1039  *
1040  * @ingroup misc
1041  *
1042 **/
1043 const char * linphone_core_get_version(void){
1044         return liblinphone_version;
1045 }
1046
1047 static void linphone_core_assign_payload_type(LinphoneCore *lc, PayloadType *const_pt, int number, const char *recv_fmtp){
1048         PayloadType *pt;
1049         pt=payload_type_clone(const_pt);
1050         if (number==-1){
1051                 /*look for a free number */
1052                 MSList *elem;
1053                 int i;
1054                 for(i=lc->dyn_pt;i<RTP_PROFILE_MAX_PAYLOADS;++i){
1055                         bool_t already_assigned=FALSE;
1056                         for(elem=lc->payload_types;elem!=NULL;elem=elem->next){
1057                                 PayloadType *it=(PayloadType*)elem->data;
1058                                 if (payload_type_get_number(it)==i){
1059                                         already_assigned=TRUE;
1060                                         break;
1061                                 }
1062                         }
1063                         if (!already_assigned){
1064                                 number=i;
1065                                 lc->dyn_pt=i+1;
1066                                 break;
1067                         }
1068                 }
1069                 if (number==-1){
1070                         ms_fatal("FIXME: too many codecs, no more free numbers.");
1071                 }
1072         }
1073         ms_message("assigning %s/%i payload type number %i",pt->mime_type,pt->clock_rate,number);
1074         payload_type_set_number(pt,number);
1075         if (recv_fmtp!=NULL) payload_type_set_recv_fmtp(pt,recv_fmtp);
1076         rtp_profile_set_payload(&av_profile,number,pt);
1077         lc->payload_types=ms_list_append(lc->payload_types,pt);
1078 }
1079
1080 static void linphone_core_handle_static_payloads(LinphoneCore *lc){
1081         RtpProfile *prof=&av_profile;
1082         int i;
1083         for(i=0;i<RTP_PROFILE_MAX_PAYLOADS;++i){
1084                 PayloadType *pt=rtp_profile_get_payload(prof,i);
1085                 if (pt){
1086                         if (payload_type_get_number(pt)!=i){
1087                                 linphone_core_assign_payload_type(lc,pt,i,NULL);
1088                         }
1089                 }
1090         }
1091 }
1092
1093 static void linphone_core_free_payload_types(LinphoneCore *lc){
1094         ms_list_for_each(lc->payload_types,(void (*)(void*))payload_type_destroy);
1095         ms_list_free(lc->payload_types);
1096         lc->payload_types=NULL;
1097 }
1098
1099 void linphone_core_set_state(LinphoneCore *lc, LinphoneGlobalState gstate, const char *message){
1100         lc->state=gstate;
1101         if (lc->vtable.global_state_changed){
1102                 lc->vtable.global_state_changed(lc,gstate,message);
1103         }
1104 }
1105 static void misc_config_read (LinphoneCore *lc) {
1106         LpConfig *config=lc->config;
1107     lc->max_call_logs=lp_config_get_int(config,"misc","history_max_size",15);
1108     lc->max_calls=lp_config_get_int(config,"misc","max_calls",NB_MAX_CALLS);
1109 }
1110
1111
1112
1113
1114 static void linphone_core_init (LinphoneCore * lc, const LinphoneCoreVTable *vtable, const char *config_path,
1115     const char *factory_config_path, void * userdata)
1116 {
1117         ms_message("Initializing LinphoneCore %s", linphone_core_get_version());
1118         memset (lc, 0, sizeof (LinphoneCore));
1119         lc->data=userdata;
1120         lc->ringstream_autorelease=TRUE;
1121
1122         memcpy(&lc->vtable,vtable,sizeof(LinphoneCoreVTable));
1123
1124         linphone_core_set_state(lc,LinphoneGlobalStartup,"Starting up");
1125         ortp_init();
1126         lc->dyn_pt=96;
1127         linphone_core_assign_payload_type(lc,&payload_type_pcmu8000,0,NULL);
1128         linphone_core_assign_payload_type(lc,&payload_type_gsm,3,NULL);
1129         linphone_core_assign_payload_type(lc,&payload_type_pcma8000,8,NULL);
1130         linphone_core_assign_payload_type(lc,&payload_type_speex_nb,110,"vbr=on");
1131         linphone_core_assign_payload_type(lc,&payload_type_speex_wb,111,"vbr=on");
1132         linphone_core_assign_payload_type(lc,&payload_type_speex_uwb,112,"vbr=on");
1133         linphone_core_assign_payload_type(lc,&payload_type_telephone_event,101,"0-11");
1134         linphone_core_assign_payload_type(lc,&payload_type_g722,9,NULL);
1135
1136 #if defined(ANDROID) || defined (__IPHONE_OS_VERSION_MIN_REQUIRED)
1137         /*shorten the DNS lookup time and send more retransmissions on mobiles:
1138          - to workaround potential packet losses
1139          - to avoid hanging for 30 seconds when the network doesn't work despite the phone thinks it does.
1140          */
1141         _linphone_core_configure_resolver();
1142 #endif
1143
1144 #ifdef ENABLE_NONSTANDARD_GSM
1145         {
1146                 PayloadType *pt;
1147                 pt=payload_type_clone(&payload_type_gsm);
1148                 pt->clock_rate=11025;
1149                 linphone_core_assign_payload_type(lc,pt,-1,NULL);
1150                 pt->clock_rate=22050;
1151                 linphone_core_assign_payload_type(lc,pt,-1,NULL);
1152                 payload_type_destroy(pt);
1153         }
1154 #endif
1155
1156 #ifdef VIDEO_ENABLED
1157         linphone_core_assign_payload_type(lc,&payload_type_h263,34,NULL);
1158         linphone_core_assign_payload_type(lc,&payload_type_theora,97,NULL);
1159         linphone_core_assign_payload_type(lc,&payload_type_h263_1998,98,"CIF=1;QCIF=1");
1160         linphone_core_assign_payload_type(lc,&payload_type_mp4v,99,"profile-level-id=3");
1161         linphone_core_assign_payload_type(lc,&payload_type_h264,102,"profile-level-id=428014");
1162         linphone_core_assign_payload_type(lc,&payload_type_vp8,103,NULL);
1163         linphone_core_assign_payload_type(lc,&payload_type_x_snow,-1,NULL);
1164         /* due to limited space in SDP, we have to disable this h264 line which is normally no more necessary */
1165         /* linphone_core_assign_payload_type(&payload_type_h264,-1,"packetization-mode=1;profile-level-id=428014");*/
1166 #endif
1167
1168         /*add all payload type for which we don't care about the number */
1169         linphone_core_assign_payload_type(lc,&payload_type_ilbc,-1,"mode=30");
1170         linphone_core_assign_payload_type(lc,&payload_type_amr,-1,"octet-align=1");
1171         linphone_core_assign_payload_type(lc,&payload_type_amrwb,-1,"octet-align=1");
1172         linphone_core_assign_payload_type(lc,&payload_type_lpc1015,-1,NULL);
1173         linphone_core_assign_payload_type(lc,&payload_type_g726_16,-1,NULL);
1174         linphone_core_assign_payload_type(lc,&payload_type_g726_24,-1,NULL);
1175         linphone_core_assign_payload_type(lc,&payload_type_g726_32,-1,NULL);
1176         linphone_core_assign_payload_type(lc,&payload_type_g726_40,-1,NULL);
1177         linphone_core_assign_payload_type(lc,&payload_type_aal2_g726_16,-1,NULL);
1178         linphone_core_assign_payload_type(lc,&payload_type_aal2_g726_24,-1,NULL);
1179         linphone_core_assign_payload_type(lc,&payload_type_aal2_g726_32,-1,NULL);
1180         linphone_core_assign_payload_type(lc,&payload_type_aal2_g726_40,-1,NULL);
1181         linphone_core_assign_payload_type(lc,&payload_type_silk_nb,-1,NULL);
1182         linphone_core_assign_payload_type(lc,&payload_type_silk_mb,-1,NULL);
1183         linphone_core_assign_payload_type(lc,&payload_type_silk_wb,-1,NULL);
1184         linphone_core_assign_payload_type(lc,&payload_type_silk_swb,-1,NULL);
1185         linphone_core_assign_payload_type(lc,&payload_type_g729,18,"annexb=no");
1186         linphone_core_handle_static_payloads(lc);
1187
1188         ms_init();
1189         /* create a mediastreamer2 event queue and set it as global */
1190         /* This allows to run event's callback in linphone_core_iterate() */
1191         lc->msevq=ms_event_queue_new();
1192         ms_set_global_event_queue(lc->msevq);
1193
1194         lc->config=lp_config_new(config_path);
1195         if (factory_config_path)
1196                 lp_config_read_file(lc->config,factory_config_path);
1197
1198         lc->sal=sal_init();
1199         sal_set_user_pointer(lc->sal,lc);
1200         sal_set_callbacks(lc->sal,&linphone_sal_callbacks);
1201
1202         lc->network_last_check = 0;
1203         lc->network_last_status = FALSE;
1204
1205         sip_setup_register_all();
1206         sound_config_read(lc);
1207         net_config_read(lc);
1208         rtp_config_read(lc);
1209         codecs_config_read(lc);
1210         sip_config_read(lc); /* this will start eXosip*/
1211         video_config_read(lc);
1212         //autoreplier_config_init(&lc->autoreplier_conf);
1213         lc->presence_mode=LinphoneStatusOnline;
1214         misc_config_read(lc);
1215         ui_config_read(lc);
1216 #ifdef TUNNEL_ENABLED
1217         lc->tunnel=linphone_core_tunnel_new(lc);
1218         if (lc->tunnel) linphone_tunnel_configure(lc->tunnel);
1219 #endif
1220 #ifdef BUILD_UPNP
1221         upnp_context_init(lc);
1222 #endif  //BUILD_UPNP
1223         if (lc->vtable.display_status)
1224                 lc->vtable.display_status(lc,_("Ready"));
1225         lc->auto_net_state_mon=lc->sip_conf.auto_net_state_mon;
1226         linphone_core_set_state(lc,LinphoneGlobalOn,"Ready");
1227 }
1228
1229 /**
1230  * Instanciates a LinphoneCore object.
1231  * @ingroup initializing
1232  *
1233  * The LinphoneCore object is the primary handle for doing all phone actions.
1234  * It should be unique within your application.
1235  * @param vtable a LinphoneCoreVTable structure holding your application callbacks
1236  * @param config_path a path to a config file. If it does not exists it will be created.
1237  *        The config file is used to store all settings, call logs, friends, proxies... so that all these settings
1238  *             become persistent over the life of the LinphoneCore object.
1239  *             It is allowed to set a NULL config file. In that case LinphoneCore will not store any settings.
1240  * @param factory_config_path a path to a read-only config file that can be used to
1241  *        to store hard-coded preference such as proxy settings or internal preferences.
1242  *        The settings in this factory file always override the one in the normal config file.
1243  *        It is OPTIONAL, use NULL if unneeded.
1244  * @param userdata an opaque user pointer that can be retrieved at any time (for example in
1245  *        callbacks) using linphone_core_get_user_data().
1246  *
1247 **/
1248 LinphoneCore *linphone_core_new(const LinphoneCoreVTable *vtable,
1249                                                 const char *config_path, const char *factory_config_path, void * userdata)
1250 {
1251         LinphoneCore *core=ms_new(LinphoneCore,1);
1252         linphone_core_init(core,vtable,config_path, factory_config_path, userdata);
1253         return core;
1254 }
1255
1256 /**
1257  * Returns the list of available audio codecs.
1258  *
1259  * This list is unmodifiable. The ->data field of the MSList points a PayloadType
1260  * structure holding the codec information.
1261  * It is possible to make copy of the list with ms_list_copy() in order to modify it
1262  * (such as the order of codecs).
1263 **/
1264 const MSList *linphone_core_get_audio_codecs(const LinphoneCore *lc)
1265 {
1266         return lc->codecs_conf.audio_codecs;
1267 }
1268
1269 /**
1270  * Returns the list of available video codecs.
1271  *
1272  * This list is unmodifiable. The ->data field of the MSList points a PayloadType
1273  * structure holding the codec information.
1274  * It is possible to make copy of the list with ms_list_copy() in order to modify it
1275  * (such as the order of codecs).
1276 **/
1277 const MSList *linphone_core_get_video_codecs(const LinphoneCore *lc)
1278 {
1279         return lc->codecs_conf.video_codecs;
1280 }
1281
1282 /**
1283  * Sets the local "from" identity.
1284  *
1285  * @ingroup proxies
1286  * This data is used in absence of any proxy configuration or when no
1287  * default proxy configuration is set. See LinphoneProxyConfig
1288 **/
1289 int linphone_core_set_primary_contact(LinphoneCore *lc, const char *contact)
1290 {
1291         LinphoneAddress *ctt;
1292
1293         if ((ctt=linphone_address_new(contact))==0) {
1294                 ms_error("Bad contact url: %s",contact);
1295                 return -1;
1296         }
1297         if (lc->sip_conf.contact!=NULL) ms_free(lc->sip_conf.contact);
1298         lc->sip_conf.contact=ms_strdup(contact);
1299         if (lc->sip_conf.guessed_contact!=NULL){
1300                 ms_free(lc->sip_conf.guessed_contact);
1301                 lc->sip_conf.guessed_contact=NULL;
1302         }
1303         linphone_address_destroy(ctt);
1304         return 0;
1305 }
1306
1307
1308 /*result must be an array of chars at least LINPHONE_IPADDR_SIZE */
1309 void linphone_core_get_local_ip(LinphoneCore *lc, const char *dest, char *result){
1310         const char *ip;
1311         if (linphone_core_get_firewall_policy(lc)==LinphonePolicyUseNatAddress
1312             && (ip=linphone_core_get_nat_address_resolved(lc))!=NULL){
1313                 strncpy(result,ip,LINPHONE_IPADDR_SIZE);
1314                 return;
1315         }
1316 #ifdef BUILD_UPNP
1317         else if (linphone_core_get_firewall_policy(lc)==LinphonePolicyUseUpnp
1318                 && lc->upnp.state == LinphoneUpnpStateOk) {
1319                 ip = upnp_igd_get_external_ipaddress(lc->upnp.upnp_igd_ctxt);
1320                 strncpy(result,ip,LINPHONE_IPADDR_SIZE);
1321                 return;
1322         }
1323 #endif  //BUILD_UPNP
1324         if (linphone_core_get_local_ip_for(lc->sip_conf.ipv6_enabled ? AF_INET6 : AF_INET,dest,result)==0)
1325                 return;
1326         /*else fallback to SAL routine that will attempt to find the most realistic interface */
1327         sal_get_default_local_ip(lc->sal,lc->sip_conf.ipv6_enabled ? AF_INET6 : AF_INET,result,LINPHONE_IPADDR_SIZE);
1328 }
1329
1330 static void update_primary_contact(LinphoneCore *lc){
1331         char *guessed=NULL;
1332         char tmp[LINPHONE_IPADDR_SIZE];
1333
1334         LinphoneAddress *url;
1335         if (lc->sip_conf.guessed_contact!=NULL){
1336                 ms_free(lc->sip_conf.guessed_contact);
1337                 lc->sip_conf.guessed_contact=NULL;
1338         }
1339         url=linphone_address_new(lc->sip_conf.contact);
1340         if (!url){
1341                 ms_error("Could not parse identity contact !");
1342                 url=linphone_address_new("sip:unknown@unkwownhost");
1343         }
1344         linphone_core_get_local_ip(lc, NULL, tmp);
1345         if (strcmp(tmp,"127.0.0.1")==0 || strcmp(tmp,"::1")==0 ){
1346                 ms_warning("Local loopback network only !");
1347                 lc->sip_conf.loopback_only=TRUE;
1348         }else lc->sip_conf.loopback_only=FALSE;
1349         linphone_address_set_domain(url,tmp);
1350         linphone_address_set_port_int(url,linphone_core_get_sip_port (lc));
1351         guessed=linphone_address_as_string(url);
1352         lc->sip_conf.guessed_contact=guessed;
1353         linphone_address_destroy(url);
1354 }
1355
1356 /**
1357  * Returns the default identity when no proxy configuration is used.
1358  *
1359  * @ingroup proxies
1360 **/
1361 const char *linphone_core_get_primary_contact(LinphoneCore *lc){
1362         char *identity;
1363
1364         if (lc->sip_conf.guess_hostname){
1365                 if (lc->sip_conf.guessed_contact==NULL || lc->sip_conf.loopback_only){
1366                         update_primary_contact(lc);
1367                 }
1368                 identity=lc->sip_conf.guessed_contact;
1369         }else{
1370                 identity=lc->sip_conf.contact;
1371         }
1372         return identity;
1373 }
1374
1375 /**
1376  * Tells LinphoneCore to guess local hostname automatically in primary contact.
1377  *
1378  * @ingroup proxies
1379 **/
1380 void linphone_core_set_guess_hostname(LinphoneCore *lc, bool_t val){
1381         lc->sip_conf.guess_hostname=val;
1382 }
1383
1384 /**
1385  * Returns TRUE if hostname part of primary contact is guessed automatically.
1386  *
1387  * @ingroup proxies
1388 **/
1389 bool_t linphone_core_get_guess_hostname(LinphoneCore *lc){
1390         return lc->sip_conf.guess_hostname;
1391 }
1392
1393 /**
1394  * Same as linphone_core_get_primary_contact() but the result is a LinphoneAddress object
1395  * instead of const char*
1396  *
1397  * @ingroup proxies
1398 **/
1399 LinphoneAddress *linphone_core_get_primary_contact_parsed(LinphoneCore *lc){
1400         return linphone_address_new(linphone_core_get_primary_contact(lc));
1401 }
1402
1403 /**
1404  * Sets the list of audio codecs.
1405  *
1406  * @ingroup media_parameters
1407  * The list is taken by the LinphoneCore thus the application should not free it.
1408  * This list is made of struct PayloadType describing the codec parameters.
1409 **/
1410 int linphone_core_set_audio_codecs(LinphoneCore *lc, MSList *codecs)
1411 {
1412         if (lc->codecs_conf.audio_codecs!=NULL) ms_list_free(lc->codecs_conf.audio_codecs);
1413         lc->codecs_conf.audio_codecs=codecs;
1414         _linphone_core_codec_config_write(lc);
1415         return 0;
1416 }
1417
1418 /**
1419  * Sets the list of video codecs.
1420  *
1421  * @ingroup media_parameters
1422  * The list is taken by the LinphoneCore thus the application should not free it.
1423  * This list is made of struct PayloadType describing the codec parameters.
1424 **/
1425 int linphone_core_set_video_codecs(LinphoneCore *lc, MSList *codecs)
1426 {
1427         if (lc->codecs_conf.video_codecs!=NULL) ms_list_free(lc->codecs_conf.video_codecs);
1428         lc->codecs_conf.video_codecs=codecs;
1429         _linphone_core_codec_config_write(lc);
1430         return 0;
1431 }
1432
1433 const MSList * linphone_core_get_friend_list(const LinphoneCore *lc)
1434 {
1435         return lc->friends;
1436 }
1437
1438 void linphone_core_enable_audio_adaptive_jittcomp(LinphoneCore* lc, bool_t val)
1439 {
1440         lc->rtp_conf.audio_adaptive_jitt_comp_enabled = val;
1441 }
1442
1443 bool_t linphone_core_audio_adaptive_jittcomp_enabled(LinphoneCore* lc)
1444 {
1445         return lc->rtp_conf.audio_adaptive_jitt_comp_enabled;
1446 }
1447
1448 /**
1449  * Returns the nominal audio jitter buffer size in milliseconds.
1450  *
1451  * @ingroup media_parameters
1452 **/
1453 int linphone_core_get_audio_jittcomp(LinphoneCore *lc)
1454 {
1455         return lc->rtp_conf.audio_jitt_comp;
1456 }
1457
1458 void linphone_core_enable_video_adaptive_jittcomp(LinphoneCore* lc, bool_t val)
1459 {
1460         lc->rtp_conf.video_adaptive_jitt_comp_enabled = val;
1461 }
1462
1463 bool_t linphone_core_video_adaptive_jittcomp_enabled(LinphoneCore* lc)
1464 {
1465         return lc->rtp_conf.video_adaptive_jitt_comp_enabled;
1466 }
1467
1468 /**
1469  * Returns the nominal video jitter buffer size in milliseconds.
1470  *
1471  * @ingroup media_parameters
1472 **/
1473 int linphone_core_get_video_jittcomp(LinphoneCore *lc)
1474 {
1475         return lc->rtp_conf.video_jitt_comp;
1476 }
1477
1478 /**
1479  * Returns the UDP port used for audio streaming.
1480  *
1481  * @ingroup network_parameters
1482 **/
1483 int linphone_core_get_audio_port(const LinphoneCore *lc)
1484 {
1485         return lc->rtp_conf.audio_rtp_min_port;
1486 }
1487
1488 /**
1489  * Get the audio port range from which is randomly chosen the UDP port used for audio streaming.
1490  *
1491  * @ingroup network_parameters
1492  */
1493 void linphone_core_get_audio_port_range(const LinphoneCore *lc, int *min_port, int *max_port)
1494 {
1495         *min_port = lc->rtp_conf.audio_rtp_min_port;
1496         *max_port = lc->rtp_conf.audio_rtp_max_port;
1497 }
1498
1499 /**
1500  * Returns the UDP port used for video streaming.
1501  *
1502  * @ingroup network_parameters
1503 **/
1504 int linphone_core_get_video_port(const LinphoneCore *lc){
1505         return lc->rtp_conf.video_rtp_min_port;
1506 }
1507
1508 /**
1509  * Get the video port range from which is randomly chosen the UDP port used for video streaming.
1510  *
1511  * @ingroup network_parameters
1512  */
1513 void linphone_core_get_video_port_range(const LinphoneCore *lc, int *min_port, int *max_port)
1514 {
1515         *min_port = lc->rtp_conf.video_rtp_min_port;
1516         *max_port = lc->rtp_conf.video_rtp_max_port;
1517 }
1518
1519
1520 /**
1521  * Returns the value in seconds of the no-rtp timeout.
1522  *
1523  * @ingroup media_parameters
1524  * When no RTP or RTCP packets have been received for a while
1525  * LinphoneCore will consider the call is broken (remote end crashed or
1526  * disconnected from the network), and thus will terminate the call.
1527  * The no-rtp timeout is the duration above which the call is considered broken.
1528 **/
1529 int linphone_core_get_nortp_timeout(const LinphoneCore *lc){
1530         return lc->rtp_conf.nortp_timeout;
1531 }
1532
1533 bool_t linphone_core_get_rtp_no_xmit_on_audio_mute(const LinphoneCore *lc){
1534         return lc->rtp_conf.rtp_no_xmit_on_audio_mute;
1535 }
1536
1537 /**
1538  * Sets the nominal audio jitter buffer size in milliseconds.
1539  *
1540  * @ingroup media_parameters
1541 **/
1542 void linphone_core_set_audio_jittcomp(LinphoneCore *lc, int value)
1543 {
1544         lc->rtp_conf.audio_jitt_comp=value;
1545 }
1546
1547 /**
1548  * Sets the nominal video jitter buffer size in milliseconds.
1549  *
1550  * @ingroup media_parameters
1551 **/
1552 void linphone_core_set_video_jittcomp(LinphoneCore *lc, int value)
1553 {
1554         lc->rtp_conf.video_jitt_comp=value;
1555 }
1556
1557 void linphone_core_set_rtp_no_xmit_on_audio_mute(LinphoneCore *lc,bool_t rtp_no_xmit_on_audio_mute){
1558         lc->rtp_conf.rtp_no_xmit_on_audio_mute=rtp_no_xmit_on_audio_mute;
1559 }
1560
1561 /**
1562  * Sets the UDP port used for audio streaming.
1563  *
1564  * @ingroup network_parameters
1565 **/
1566 void linphone_core_set_audio_port(LinphoneCore *lc, int port)
1567 {
1568         lc->rtp_conf.audio_rtp_min_port=lc->rtp_conf.audio_rtp_max_port=port;
1569 }
1570
1571 /**
1572  * Sets the UDP port range from which to randomly select the port used for audio streaming.
1573  */
1574 void linphone_core_set_audio_port_range(LinphoneCore *lc, int min_port, int max_port)
1575 {
1576         lc->rtp_conf.audio_rtp_min_port=min_port;
1577         lc->rtp_conf.audio_rtp_max_port=max_port;
1578 }
1579
1580 /**
1581  * Sets the UDP port used for video streaming.
1582  *
1583  * @ingroup network_parameters
1584 **/
1585 void linphone_core_set_video_port(LinphoneCore *lc, int port){
1586         lc->rtp_conf.video_rtp_min_port=lc->rtp_conf.video_rtp_max_port=port;
1587 }
1588
1589 /**
1590  * Sets the UDP port range from which to randomly select the port used for video streaming.
1591  */
1592 void linphone_core_set_video_port_range(LinphoneCore *lc, int min_port, int max_port)
1593 {
1594         lc->rtp_conf.video_rtp_min_port=min_port;
1595         lc->rtp_conf.video_rtp_max_port=max_port;
1596 }
1597
1598 /**
1599  * Sets the no-rtp timeout value in seconds.
1600  *
1601  * @ingroup media_parameters
1602  * See linphone_core_get_nortp_timeout() for details.
1603 **/
1604 void linphone_core_set_nortp_timeout(LinphoneCore *lc, int nortp_timeout){
1605         lc->rtp_conf.nortp_timeout=nortp_timeout;
1606 }
1607
1608 /**
1609  * Indicates whether SIP INFO is used for sending digits.
1610  *
1611  * @ingroup media_parameters
1612 **/
1613 bool_t linphone_core_get_use_info_for_dtmf(LinphoneCore *lc)
1614 {
1615         return lc->sip_conf.use_info;
1616 }
1617
1618 /**
1619  * Sets whether SIP INFO is to be used for sending digits.
1620  *
1621  * @ingroup media_parameters
1622 **/
1623 void linphone_core_set_use_info_for_dtmf(LinphoneCore *lc,bool_t use_info)
1624 {
1625         lc->sip_conf.use_info=use_info;
1626 }
1627
1628 /**
1629  * Indicates whether RFC2833 is used for sending digits.
1630  *
1631  * @ingroup media_parameters
1632 **/
1633 bool_t linphone_core_get_use_rfc2833_for_dtmf(LinphoneCore *lc)
1634 {
1635         return lc->sip_conf.use_rfc2833;
1636 }
1637
1638 /**
1639  * Sets whether RFC2833 is to be used for sending digits.
1640  *
1641  * @ingroup media_parameters
1642 **/
1643 void linphone_core_set_use_rfc2833_for_dtmf(LinphoneCore *lc,bool_t use_rfc2833)
1644 {
1645         lc->sip_conf.use_rfc2833=use_rfc2833;
1646 }
1647
1648 /**
1649  * Returns the UDP port used by SIP.
1650  *
1651  * Deprecated: use linphone_core_get_sip_transports() instead.
1652  * @ingroup network_parameters
1653 **/
1654 int linphone_core_get_sip_port(LinphoneCore *lc)
1655 {
1656         LCSipTransports *tr=&lc->sip_conf.transports;
1657         return tr->udp_port>0 ? tr->udp_port : (tr->tcp_port > 0 ? tr->tcp_port : tr->tls_port);
1658 }
1659
1660 static char _ua_name[64]="Linphone";
1661 static char _ua_version[64]=LINPHONE_VERSION;
1662
1663 #ifdef HAVE_EXOSIP_GET_VERSION
1664 extern const char *eXosip_get_version();
1665 #endif
1666
1667 static void apply_user_agent(LinphoneCore *lc){
1668         char ua_string[256];
1669         snprintf(ua_string,sizeof(ua_string)-1,"%s/%s (eXosip2/%s)",_ua_name,_ua_version,
1670 #ifdef HAVE_EXOSIP_GET_VERSION
1671                  eXosip_get_version()
1672 #else
1673                  "unknown"
1674 #endif
1675         );
1676         if (lc->sal) sal_set_user_agent(lc->sal,ua_string);
1677 }
1678
1679 /**
1680  * Sets the user agent string used in SIP messages.
1681  *
1682  * @ingroup misc
1683 **/
1684 void linphone_core_set_user_agent(LinphoneCore *lc, const char *name, const char *ver){
1685         strncpy(_ua_name,name,sizeof(_ua_name)-1);
1686         strncpy(_ua_version,ver,sizeof(_ua_version));
1687         apply_user_agent(lc);
1688 }
1689
1690 const char *linphone_core_get_user_agent_name(void){
1691         return _ua_name;
1692 }
1693
1694 const char *linphone_core_get_user_agent_version(void){
1695         return _ua_version;
1696 }
1697
1698 static void transport_error(LinphoneCore *lc, const char* transport, int port){
1699         char *msg=ortp_strdup_printf("Could not start %s transport on port %i, maybe this port is already used.",transport,port);
1700         ms_warning("%s",msg);
1701         if (lc->vtable.display_warning)
1702                 lc->vtable.display_warning(lc,msg);
1703         ms_free(msg);
1704 }
1705
1706 static bool_t transports_unchanged(const LCSipTransports * tr1, const LCSipTransports * tr2){
1707         return
1708                 tr2->udp_port==tr1->udp_port &&
1709                 tr2->tcp_port==tr1->tcp_port &&
1710                 tr2->dtls_port==tr1->dtls_port &&
1711                 tr2->tls_port==tr1->tls_port;
1712 }
1713
1714 static int apply_transports(LinphoneCore *lc){
1715         Sal *sal=lc->sal;
1716         const char *anyaddr;
1717         LCSipTransports *tr=&lc->sip_conf.transports;
1718
1719         /*first of all invalidate all current registrations so that we can register again with new transports*/
1720         __linphone_core_invalidate_registers(lc);
1721
1722         if (lc->sip_conf.ipv6_enabled)
1723                 anyaddr="::0";
1724         else
1725                 anyaddr="0.0.0.0";
1726
1727         sal_unlisten_ports(sal);
1728         if (tr->udp_port>0){
1729                 if (sal_listen_port (sal,anyaddr,tr->udp_port,SalTransportUDP,FALSE)!=0){
1730                         transport_error(lc,"udp",tr->udp_port);
1731                         return -1;
1732                 }
1733         }
1734         if (tr->tcp_port>0){
1735                 if (sal_listen_port (sal,anyaddr,tr->tcp_port,SalTransportTCP,FALSE)!=0){
1736                         transport_error(lc,"tcp",tr->tcp_port);
1737                 }
1738         }
1739         if (tr->tls_port>0){
1740                 if (sal_listen_port (sal,anyaddr,tr->tls_port,SalTransportTLS,TRUE)!=0){
1741                         transport_error(lc,"tls",tr->tls_port);
1742                 }
1743         }
1744         apply_user_agent(lc);
1745         return 0;
1746 }
1747
1748 /**
1749  * Sets the ports to be used for each of transport (UDP or TCP)
1750  *
1751  * A zero value port for a given transport means the transport
1752  * is not used.
1753  *
1754  * @ingroup network_parameters
1755 **/
1756 int linphone_core_set_sip_transports(LinphoneCore *lc, const LCSipTransports * tr){
1757
1758         if (transports_unchanged(tr,&lc->sip_conf.transports))
1759                 return 0;
1760         memcpy(&lc->sip_conf.transports,tr,sizeof(*tr));
1761
1762         if (linphone_core_ready(lc)){
1763                 lp_config_set_int(lc->config,"sip","sip_port",tr->udp_port);
1764                 lp_config_set_int(lc->config,"sip","sip_tcp_port",tr->tcp_port);
1765                 lp_config_set_int(lc->config,"sip","sip_tls_port",tr->tls_port);
1766         }
1767
1768         if (lc->sal==NULL) return 0;
1769         return apply_transports(lc);
1770 }
1771
1772 /**
1773  * Retrieves the ports used for each transport (udp, tcp).
1774  * A zero value port for a given transport means the transport
1775  * is not used.
1776  * @ingroup network_parameters
1777 **/
1778 int linphone_core_get_sip_transports(LinphoneCore *lc, LCSipTransports *tr){
1779         memcpy(tr,&lc->sip_conf.transports,sizeof(*tr));
1780         return 0;
1781 }
1782
1783 /**
1784  * Sets the UDP port to be used by SIP.
1785  *
1786  * Deprecated: use linphone_core_set_sip_transports() instead.
1787  * @ingroup network_parameters
1788 **/
1789 void linphone_core_set_sip_port(LinphoneCore *lc,int port)
1790 {
1791         LCSipTransports tr;
1792         memset(&tr,0,sizeof(tr));
1793         tr.udp_port=port;
1794         linphone_core_set_sip_transports (lc,&tr);
1795 }
1796
1797 /**
1798  * Returns TRUE if IPv6 is enabled.
1799  *
1800  * @ingroup network_parameters
1801  * See linphone_core_enable_ipv6() for more details on how IPv6 is supported in liblinphone.
1802 **/
1803 bool_t linphone_core_ipv6_enabled(LinphoneCore *lc){
1804         return lc->sip_conf.ipv6_enabled;
1805 }
1806
1807 /**
1808  * Turns IPv6 support on or off.
1809  *
1810  * @ingroup network_parameters
1811  *
1812  * @note IPv6 support is exclusive with IPv4 in liblinphone:
1813  * when IPv6 is turned on, IPv4 calls won't be possible anymore.
1814  * By default IPv6 support is off.
1815 **/
1816 void linphone_core_enable_ipv6(LinphoneCore *lc, bool_t val){
1817         if (lc->sip_conf.ipv6_enabled!=val){
1818                 lc->sip_conf.ipv6_enabled=val;
1819                 if (lc->sal){
1820                         /* we need to restart eXosip */
1821                         apply_transports(lc);
1822                 }
1823         }
1824 }
1825
1826
1827 static void monitor_network_state(LinphoneCore *lc, time_t curtime){
1828         char result[LINPHONE_IPADDR_SIZE];
1829         bool_t new_status=lc->network_last_status;
1830
1831         /* only do the network up checking every five seconds */
1832         if (lc->network_last_check==0 || (curtime-lc->network_last_check)>=5){
1833                 linphone_core_get_local_ip_for(lc->sip_conf.ipv6_enabled ? AF_INET6 : AF_INET,NULL,result);
1834                 if (strcmp(result,"::1")!=0 && strcmp(result,"127.0.0.1")!=0){
1835                         new_status=TRUE;
1836                 }else new_status=FALSE;
1837                 lc->network_last_check=curtime;
1838                 if (new_status!=lc->network_last_status) {
1839                         if (new_status){
1840                                 ms_message("New local ip address is %s",result);
1841                         }
1842                         set_network_reachable(lc,new_status, curtime);
1843                         lc->network_last_status=new_status;
1844                 }
1845         }
1846 }
1847
1848 static void proxy_update(LinphoneCore *lc){
1849         MSList *elem,*next;
1850         ms_list_for_each(lc->sip_conf.proxies,(void (*)(void*))&linphone_proxy_config_update);
1851         for(elem=lc->sip_conf.deleted_proxies;elem!=NULL;elem=next){
1852                 LinphoneProxyConfig* cfg = (LinphoneProxyConfig*)elem->data;
1853                 next=elem->next;
1854                 if (ms_time(NULL) - cfg->deletion_date > 5) {
1855                         lc->sip_conf.deleted_proxies =ms_list_remove_link(lc->sip_conf.deleted_proxies,elem);
1856                         ms_message("clearing proxy config for [%s]",linphone_proxy_config_get_addr(cfg));
1857                         linphone_proxy_config_destroy(cfg);
1858                 }
1859         }
1860 }
1861
1862 static void assign_buddy_info(LinphoneCore *lc, BuddyInfo *info){
1863         LinphoneFriend *lf=linphone_core_get_friend_by_address(lc,info->sip_uri);
1864         if (lf!=NULL){
1865                 lf->info=info;
1866                 ms_message("%s has a BuddyInfo assigned with image %p",info->sip_uri, info->image_data);
1867                 if (lc->vtable.buddy_info_updated)
1868                         lc->vtable.buddy_info_updated(lc,lf);
1869         }else{
1870                 ms_warning("Could not any friend with uri %s",info->sip_uri);
1871         }
1872 }
1873
1874 static void analyze_buddy_lookup_results(LinphoneCore *lc, LinphoneProxyConfig *cfg){
1875         MSList *elem;
1876         SipSetupContext *ctx=linphone_proxy_config_get_sip_setup_context(cfg);
1877         for (elem=lc->bl_reqs;elem!=NULL;elem=ms_list_next(elem)){
1878                 BuddyLookupRequest *req=(BuddyLookupRequest *)elem->data;
1879                 if (req->status==BuddyLookupDone || req->status==BuddyLookupFailure){
1880                         if (req->results!=NULL){
1881                                 BuddyInfo *i=(BuddyInfo*)req->results->data;
1882                                 ms_list_free(req->results);
1883                                 req->results=NULL;
1884                                 assign_buddy_info(lc,i);
1885                         }
1886                         sip_setup_context_buddy_lookup_free(ctx,req);
1887                         elem->data=NULL;
1888                 }
1889         }
1890         /*purge completed requests */
1891         while((elem=ms_list_find(lc->bl_reqs,NULL))!=NULL){
1892                 lc->bl_reqs=ms_list_remove_link(lc->bl_reqs,elem);
1893         }
1894 }
1895
1896 static void linphone_core_grab_buddy_infos(LinphoneCore *lc, LinphoneProxyConfig *cfg){
1897         const MSList *elem;
1898         SipSetupContext *ctx=linphone_proxy_config_get_sip_setup_context(cfg);
1899         for(elem=linphone_core_get_friend_list(lc);elem!=NULL;elem=elem->next){
1900                 LinphoneFriend *lf=(LinphoneFriend*)elem->data;
1901                 if (lf->info==NULL){
1902                         if (linphone_core_lookup_known_proxy(lc,lf->uri)==cfg){
1903                                 if (linphone_address_get_username(lf->uri)!=NULL){
1904                                         BuddyLookupRequest *req;
1905                                         char *tmp=linphone_address_as_string_uri_only(lf->uri);
1906                                         req=sip_setup_context_create_buddy_lookup_request(ctx);
1907                                         buddy_lookup_request_set_key(req,tmp);
1908                                         buddy_lookup_request_set_max_results(req,1);
1909                                         sip_setup_context_buddy_lookup_submit(ctx,req);
1910                                         lc->bl_reqs=ms_list_append(lc->bl_reqs,req);
1911                                         ms_free(tmp);
1912                                 }
1913                         }
1914                 }
1915         }
1916 }
1917
1918 static void linphone_core_do_plugin_tasks(LinphoneCore *lc){
1919         LinphoneProxyConfig *cfg=NULL;
1920         linphone_core_get_default_proxy(lc,&cfg);
1921         if (cfg){
1922                 if (lc->bl_refresh){
1923                         SipSetupContext *ctx=linphone_proxy_config_get_sip_setup_context(cfg);
1924                         if (ctx && (sip_setup_context_get_capabilities(ctx) & SIP_SETUP_CAP_BUDDY_LOOKUP)){
1925                                 linphone_core_grab_buddy_infos(lc,cfg);
1926                                 lc->bl_refresh=FALSE;
1927                         }
1928                 }
1929                 if (lc->bl_reqs) analyze_buddy_lookup_results(lc,cfg);
1930         }
1931 }
1932
1933 /**
1934  * Main loop function. It is crucial that your application call it periodically.
1935  *
1936  * @ingroup initializing
1937  * linphone_core_iterate() performs various backgrounds tasks:
1938  * - receiving of SIP messages
1939  * - handles timers and timeout
1940  * - performs registration to proxies
1941  * - authentication retries
1942  * The application MUST call this function periodically, in its main loop.
1943  * Be careful that this function must be called from the same thread as
1944  * other liblinphone methods. If it is not the case make sure all liblinphone calls are
1945  * serialized with a mutex.
1946 **/
1947 void linphone_core_iterate(LinphoneCore *lc){
1948         MSList *calls;
1949         LinphoneCall *call;
1950         time_t curtime=time(NULL);
1951         int elapsed;
1952         bool_t one_second_elapsed=FALSE;
1953
1954         if (curtime-lc->prevtime>=1){
1955                 lc->prevtime=curtime;
1956                 one_second_elapsed=TRUE;
1957         }
1958
1959         if (lc->ecc!=NULL){
1960                 LinphoneEcCalibratorStatus ecs=ec_calibrator_get_status(lc->ecc);
1961                 if (ecs!=LinphoneEcCalibratorInProgress){
1962                         if (lc->ecc->cb)
1963                                 lc->ecc->cb(lc,ecs,lc->ecc->delay,lc->ecc->cb_data);
1964                         if (ecs==LinphoneEcCalibratorDone){
1965                                 int len=lp_config_get_int(lc->config,"sound","ec_tail_len",0);
1966                                 lp_config_set_int(lc->config, "sound", "ec_delay",MAX(lc->ecc->delay-(len/2),0));
1967                         } else if (ecs == LinphoneEcCalibratorFailed) {
1968                                 lp_config_set_int(lc->config, "sound", "ec_delay", LP_CONFIG_DEFAULT_INT(lc->config, "ec_delay", 250));
1969                         } else if (ecs == LinphoneEcCalibratorDoneNoEcho) {
1970                                 linphone_core_enable_echo_cancellation(lc, FALSE);
1971                         }
1972                         ec_calibrator_destroy(lc->ecc);
1973                         lc->ecc=NULL;
1974                 }
1975         }
1976
1977         if (lc->preview_finished){
1978                 lc->preview_finished=0;
1979                 ring_stop(lc->ringstream);
1980                 lc->ringstream=NULL;
1981                 lc_callback_obj_invoke(&lc->preview_finished_cb,lc);
1982         }
1983
1984         if (lc->ringstream && lc->ringstream_autorelease && lc->dmfs_playing_start_time!=0
1985             && (curtime-lc->dmfs_playing_start_time)>5){
1986                 ring_stop(lc->ringstream);
1987                 lc->ringstream=NULL;
1988                 lc->dmfs_playing_start_time=0;
1989         }
1990
1991         sal_iterate(lc->sal);
1992         if (lc->msevq) ms_event_queue_pump(lc->msevq);
1993         if (lc->auto_net_state_mon) monitor_network_state(lc,curtime);
1994
1995         proxy_update(lc);
1996
1997         //we have to iterate for each call
1998         calls= lc->calls;
1999         while(calls!= NULL){
2000                 call = (LinphoneCall *)calls->data;
2001                 elapsed = curtime-call->start_time;
2002                  /* get immediately a reference to next one in case the one
2003                  we are going to examine is destroy and removed during
2004                  linphone_core_start_invite() */
2005                 calls=calls->next;
2006                 linphone_call_background_tasks(call,one_second_elapsed);
2007                 if (call->state==LinphoneCallOutgoingInit && (curtime-call->start_time>=2)){
2008                         /*start the call even if the OPTIONS reply did not arrive*/
2009                         if (call->ice_session != NULL) {
2010                                 ms_warning("ICE candidates gathering from [%s] has not finished yet, proceed with the call without ICE anyway."
2011                                                 ,linphone_core_get_stun_server(lc));
2012                                 linphone_call_delete_ice_session(call);
2013                                 linphone_call_stop_media_streams_for_ice_gathering(call);
2014                         }
2015                         if (call->upnp_session != NULL) {
2016                                 ms_warning("uPnP mapping has not finished yet, proceeded with the call without uPnP anyway.");
2017                                 linphone_call_delete_upnp_session(call);
2018                         }
2019                         linphone_core_start_invite(lc,call);
2020                 }
2021                 if (call->state==LinphoneCallIncomingReceived){
2022                         ms_message("incoming call ringing for %i seconds",elapsed);
2023                         if (elapsed>lc->sip_conf.inc_timeout){
2024                                 ms_message("incoming call timeout (%i)",lc->sip_conf.inc_timeout);
2025                                 call->log->status=LinphoneCallMissed;
2026                                 call->reason=LinphoneReasonNotAnswered;
2027                                 linphone_core_terminate_call(lc,call);
2028                         }
2029                 }
2030                 if (lc->sip_conf.in_call_timeout > 0 && elapsed>lc->sip_conf.in_call_timeout) {
2031                         ms_message("in call timeout (%i)",lc->sip_conf.in_call_timeout);
2032                         linphone_core_terminate_call(lc,call);
2033                 }
2034         }
2035
2036         if (linphone_core_video_preview_enabled(lc)){
2037                 if (lc->previewstream==NULL && lc->calls==NULL)
2038                         toggle_video_preview(lc,TRUE);
2039 #ifdef VIDEO_ENABLED
2040                 if (lc->previewstream) video_stream_iterate(lc->previewstream);
2041 #endif
2042         }else{
2043                 if (lc->previewstream!=NULL)
2044                         toggle_video_preview(lc,FALSE);
2045         }
2046
2047         linphone_core_run_hooks(lc);
2048         linphone_core_do_plugin_tasks(lc);
2049
2050         if (lc->initial_subscribes_sent==FALSE && lc->netup_time!=0 &&
2051             (curtime-lc->netup_time)>3){
2052                 linphone_core_send_initial_subscribes(lc);
2053                 lc->initial_subscribes_sent=TRUE;
2054         }
2055
2056         if (one_second_elapsed && lp_config_needs_commit(lc->config)){
2057                 lp_config_sync(lc->config);
2058         }
2059 }
2060
2061 /**
2062  * Interpret a call destination as supplied by the user, and returns a fully qualified
2063  * LinphoneAddress.
2064  *
2065  * A sip address should look like DisplayName <sip:username@domain:port> .
2066  * Basically this function performs the following tasks
2067  * - if a phone number is entered, prepend country prefix of the default proxy
2068  *   configuration, eventually escape the '+' by 00.
2069  * - if no domain part is supplied, append the domain name of the default proxy
2070  * - if no sip: is present, prepend it
2071  *
2072  * The result is a syntaxically correct SIP address.
2073 **/
2074
2075 LinphoneAddress * linphone_core_interpret_url(LinphoneCore *lc, const char *url){
2076         enum_lookup_res_t *enumres=NULL;
2077         char *enum_domain=NULL;
2078         LinphoneProxyConfig *proxy=lc->default_proxy;;
2079         char *tmpurl;
2080         LinphoneAddress *uri;
2081
2082         if (is_enum(url,&enum_domain)){
2083                 if (lc->vtable.display_status!=NULL)
2084                         lc->vtable.display_status(lc,_("Looking for telephone number destination..."));
2085                 if (enum_lookup(enum_domain,&enumres)<0){
2086                         if (lc->vtable.display_status!=NULL)
2087                                 lc->vtable.display_status(lc,_("Could not resolve this number."));
2088                         ms_free(enum_domain);
2089                         return NULL;
2090                 }
2091                 ms_free(enum_domain);
2092                 tmpurl=enumres->sip_address[0];
2093                 uri=linphone_address_new(tmpurl);
2094                 enum_lookup_res_free(enumres);
2095                 return uri;
2096         }
2097         /* check if we have a "sip:" */
2098         if (strstr(url,"sip:")==NULL){
2099                 /* this doesn't look like a true sip uri */
2100                 if (strchr(url,'@')!=NULL){
2101                         /* seems like sip: is missing !*/
2102                         tmpurl=ms_strdup_printf("sip:%s",url);
2103                         uri=linphone_address_new(tmpurl);
2104                         ms_free(tmpurl);
2105                         if (uri){
2106                                 return uri;
2107                         }
2108                 }
2109
2110                 if (proxy!=NULL){
2111                         /* append the proxy domain suffix */
2112                         const char *identity=linphone_proxy_config_get_identity(proxy);
2113                         char normalized_username[128];
2114                         uri=linphone_address_new(identity);
2115                         if (uri==NULL){
2116                                 return NULL;
2117                         }
2118                         linphone_address_set_display_name(uri,NULL);
2119                         linphone_proxy_config_normalize_number(proxy,url,normalized_username,
2120                                                                 sizeof(normalized_username));
2121                         linphone_address_set_username(uri,normalized_username);
2122                         return uri;
2123                 }else return NULL;
2124         }
2125         uri=linphone_address_new(url);
2126         if (uri!=NULL){
2127                 return uri;
2128         }
2129         /* else we could not do anything with url given by user, so display an error */
2130         if (lc->vtable.display_warning!=NULL){
2131                 lc->vtable.display_warning(lc,_("Could not parse given sip address. A sip url usually looks like sip:user@domain"));
2132         }
2133         return NULL;
2134 }
2135
2136 /**
2137  * Returns the default identity SIP address.
2138  *
2139  * @ingroup proxies
2140  * This is an helper function:
2141  *
2142  * If no default proxy is set, this will return the primary contact (
2143  * see linphone_core_get_primary_contact() ). If a default proxy is set
2144  * it returns the registered identity on the proxy.
2145 **/
2146 const char * linphone_core_get_identity(LinphoneCore *lc){
2147         LinphoneProxyConfig *proxy=NULL;
2148         const char *from;
2149         linphone_core_get_default_proxy(lc,&proxy);
2150         if (proxy!=NULL) {
2151                 from=linphone_proxy_config_get_identity(proxy);
2152         }else from=linphone_core_get_primary_contact(lc);
2153         return from;
2154 }
2155
2156 const char * linphone_core_get_route(LinphoneCore *lc){
2157         LinphoneProxyConfig *proxy=NULL;
2158         const char *route=NULL;
2159         linphone_core_get_default_proxy(lc,&proxy);
2160         if (proxy!=NULL) {
2161                 route=linphone_proxy_config_get_route(proxy);
2162         }
2163         return route;
2164 }
2165
2166 void linphone_core_start_refered_call(LinphoneCore *lc, LinphoneCall *call){
2167         if (call->refer_pending){
2168                 LinphoneCallParams *cp=linphone_core_create_default_call_parameters(lc);
2169                 LinphoneCall *newcall;
2170                 cp->has_video &= !!lc->video_policy.automatically_initiate;
2171                 cp->referer=call;
2172                 ms_message("Starting new call to refered address %s",call->refer_to);
2173                 call->refer_pending=FALSE;
2174                 newcall=linphone_core_invite_with_params(lc,call->refer_to,cp);
2175                 linphone_call_params_destroy(cp);
2176                 if (newcall) linphone_core_notify_refer_state(lc,call,newcall);
2177         }
2178 }
2179
2180 void linphone_core_notify_refer_state(LinphoneCore *lc, LinphoneCall *referer, LinphoneCall *newcall){
2181         if (referer->op!=NULL){
2182                 sal_call_notify_refer_state(referer->op,newcall ? newcall->op : NULL);
2183         }
2184 }
2185
2186 LinphoneProxyConfig * linphone_core_lookup_known_proxy(LinphoneCore *lc, const LinphoneAddress *uri){
2187         const MSList *elem;
2188         LinphoneProxyConfig *found_cfg=NULL;
2189         LinphoneProxyConfig *default_cfg=lc->default_proxy;
2190
2191         /*always prefer the default proxy if it is matching the destination uri*/
2192         if (default_cfg){
2193                 const char *domain=linphone_proxy_config_get_domain(default_cfg);
2194                 if (strcmp(domain,linphone_address_get_domain(uri))==0)
2195                         return default_cfg;
2196         }
2197
2198         /*otherwise iterate through the other proxy config and return the first matching*/
2199         for (elem=linphone_core_get_proxy_config_list(lc);elem!=NULL;elem=elem->next){
2200                 LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)elem->data;
2201                 const char *domain=linphone_proxy_config_get_domain(cfg);
2202                 if (domain!=NULL && strcmp(domain,linphone_address_get_domain(uri))==0){
2203                         found_cfg=cfg;
2204                         break;
2205                 }
2206         }
2207         return found_cfg;
2208 }
2209
2210 const char *linphone_core_find_best_identity(LinphoneCore *lc, const LinphoneAddress *to, const char **route){
2211         LinphoneProxyConfig *cfg=linphone_core_lookup_known_proxy(lc,to);
2212         if (cfg==NULL)
2213                 linphone_core_get_default_proxy (lc,&cfg);
2214         if (cfg!=NULL){
2215                 if (route) *route=linphone_proxy_config_get_route(cfg);
2216                 return linphone_proxy_config_get_identity (cfg);
2217         }
2218         return linphone_core_get_primary_contact (lc);
2219 }
2220
2221 static char *get_fixed_contact(LinphoneCore *lc, LinphoneCall *call , LinphoneProxyConfig *dest_proxy){
2222         LinphoneAddress *ctt;
2223         const char *localip=call->localip;
2224
2225         /* first use user's supplied ip address if asked*/
2226         if (linphone_core_get_firewall_policy(lc)==LinphonePolicyUseNatAddress){
2227                 ctt=linphone_core_get_primary_contact_parsed(lc);
2228                 return ms_strdup_printf("sip:%s@%s",linphone_address_get_username(ctt),
2229                         linphone_core_get_nat_address_resolved(lc));
2230         }
2231
2232         /* if already choosed, don't change it */
2233         if (call->op && sal_op_get_contact(call->op)!=NULL){
2234                 return NULL;
2235         }
2236         /* if the ping OPTIONS request succeeded use the contact guessed from the
2237          received, rport*/
2238         if (call->ping_op){
2239                 const char *guessed=sal_op_get_contact(call->ping_op);
2240                 if (guessed){
2241                         ms_message("Contact has been fixed using OPTIONS to %s",guessed);
2242                         return ms_strdup(guessed);
2243                 }
2244         }
2245
2246         /*if using a proxy, use the contact address as guessed with the REGISTERs*/
2247         if (dest_proxy && dest_proxy->op){
2248                 const char *fixed_contact=sal_op_get_contact(dest_proxy->op);
2249                 if (fixed_contact) {
2250                         ms_message("Contact has been fixed using proxy to %s",fixed_contact);
2251                         return ms_strdup(fixed_contact);
2252                 }
2253         }
2254
2255         ctt=linphone_core_get_primary_contact_parsed(lc);
2256
2257         if (ctt!=NULL){
2258                 char *ret;
2259                 /*otherwise use supllied localip*/
2260                 linphone_address_set_domain(ctt,localip);
2261                 linphone_address_set_port_int(ctt,linphone_core_get_sip_port(lc));
2262                 ret=linphone_address_as_string_uri_only(ctt);
2263                 linphone_address_destroy(ctt);
2264                 ms_message("Contact has been fixed using local ip to %s",ret);
2265                 return ret;
2266         }
2267         return NULL;
2268 }
2269
2270 int linphone_core_proceed_with_invite_if_ready(LinphoneCore *lc, LinphoneCall *call, LinphoneProxyConfig *dest_proxy){
2271         bool_t ice_ready = FALSE;
2272         bool_t upnp_ready = FALSE;
2273         bool_t ping_ready = FALSE;
2274
2275         if (call->ice_session != NULL) {
2276                 if (ice_session_candidates_gathered(call->ice_session)) ice_ready = TRUE;
2277         } else {
2278                 ice_ready = TRUE;
2279         }
2280 #ifdef BUILD_UPNP
2281         if (call->upnp_session != NULL) {
2282                 if (call->upnp_session->state == LinphoneUpnpStateOk) upnp_ready = TRUE;
2283         } else {
2284                 upnp_ready = TRUE;
2285         }
2286 #endif //BUILD_UPNP
2287         if (call->ping_op != NULL) {
2288                 if (call->ping_replied == TRUE) ping_ready = TRUE;
2289         } else {
2290                 ping_ready = TRUE;
2291         }
2292
2293         if ((ice_ready == TRUE) && (upnp_ready == TRUE) && (ping_ready == TRUE)) {
2294                 return linphone_core_start_invite(lc, call);
2295         }
2296         return 0;
2297 }
2298
2299 int linphone_core_start_invite(LinphoneCore *lc, LinphoneCall *call){
2300         int err;
2301         char *contact;
2302         char *real_url,*barmsg;
2303         char *from;
2304         LinphoneProxyConfig *dest_proxy=call->dest_proxy;
2305
2306         /*try to be best-effort in giving real local or routable contact address */
2307         contact=get_fixed_contact(lc,call,dest_proxy);
2308         if (contact){
2309                 sal_op_set_contact(call->op, contact);
2310                 ms_free(contact);
2311         }
2312         linphone_core_stop_dtmf_stream(lc);
2313         linphone_call_init_media_streams(call);
2314         if (lc->ringstream==NULL)
2315                 audio_stream_prepare_sound(call->audiostream,lc->sound_conf.play_sndcard,lc->sound_conf.capt_sndcard);
2316         linphone_call_make_local_media_description(lc,call);
2317         if (!lc->sip_conf.sdp_200_ack){
2318                 call->media_pending=TRUE;
2319                 sal_call_set_local_media_description(call->op,call->localdesc);
2320         }
2321         real_url=linphone_address_as_string(call->log->to);
2322         from=linphone_address_as_string(call->log->from);
2323         err=sal_call(call->op,from,real_url);
2324         call->log->call_id=ms_strdup(sal_op_get_call_id(call->op)); /*must be known at that time*/
2325
2326         if (lc->sip_conf.sdp_200_ack){
2327                 call->media_pending=TRUE;
2328                 sal_call_set_local_media_description(call->op,call->localdesc);
2329         }
2330         barmsg=ortp_strdup_printf("%s %s", _("Contacting"), real_url);
2331         if (lc->vtable.display_status!=NULL)
2332                 lc->vtable.display_status(lc,barmsg);
2333         ms_free(barmsg);
2334
2335         if (err<0){
2336                 if (lc->vtable.display_status!=NULL)
2337                         lc->vtable.display_status(lc,_("Could not call"));
2338                 linphone_call_stop_media_streams(call);
2339                 linphone_call_set_state(call,LinphoneCallError,"Call failed");
2340         }else {
2341                 linphone_call_set_state(call,LinphoneCallOutgoingProgress,"Outgoing call in progress");
2342         }
2343         ms_free(real_url);
2344         ms_free(from);
2345         return err;
2346 }
2347
2348 /**
2349  * Initiates an outgoing call
2350  *
2351  * @ingroup call_control
2352  * @param lc the LinphoneCore object
2353  * @param url the destination of the call (sip address, or phone number).
2354  *
2355  * The application doesn't own a reference to the returned LinphoneCall object.
2356  * Use linphone_call_ref() to safely keep the LinphoneCall pointer valid within your application.
2357  *
2358  * @return a LinphoneCall object or NULL in case of failure
2359 **/
2360 LinphoneCall * linphone_core_invite(LinphoneCore *lc, const char *url){
2361         LinphoneCall *call;
2362         LinphoneCallParams *p=linphone_core_create_default_call_parameters (lc);
2363         p->has_video &= !!lc->video_policy.automatically_initiate;
2364         call=linphone_core_invite_with_params(lc,url,p);
2365         linphone_call_params_destroy(p);
2366         return call;
2367 }
2368
2369
2370 /**
2371  * Initiates an outgoing call according to supplied call parameters
2372  *
2373  * @ingroup call_control
2374  * @param lc the LinphoneCore object
2375  * @param url the destination of the call (sip address, or phone number).
2376  * @param p call parameters
2377  *
2378  * The application doesn't own a reference to the returned LinphoneCall object.
2379  * Use linphone_call_ref() to safely keep the LinphoneCall pointer valid within your application.
2380  *
2381  * @return a LinphoneCall object or NULL in case of failure
2382 **/
2383 LinphoneCall * linphone_core_invite_with_params(LinphoneCore *lc, const char *url, const LinphoneCallParams *p){
2384         LinphoneAddress *addr=linphone_core_interpret_url(lc,url);
2385         if (addr){
2386                 LinphoneCall *call;
2387                 call=linphone_core_invite_address_with_params(lc,addr,p);
2388                 linphone_address_destroy(addr);
2389                 return call;
2390         }
2391         return NULL;
2392 }
2393
2394 /**
2395  * Initiates an outgoing call given a destination LinphoneAddress
2396  *
2397  * @ingroup call_control
2398  * @param lc the LinphoneCore object
2399  * @param addr the destination of the call (sip address).
2400  *
2401  * The LinphoneAddress can be constructed directly using linphone_address_new(), or
2402  * created by linphone_core_interpret_url().
2403  * The application doesn't own a reference to the returned LinphoneCall object.
2404  * Use linphone_call_ref() to safely keep the LinphoneCall pointer valid within your application.
2405  *
2406  * @return a LinphoneCall object or NULL in case of failure
2407 **/
2408 LinphoneCall * linphone_core_invite_address(LinphoneCore *lc, const LinphoneAddress *addr){
2409         LinphoneCall *call;
2410         LinphoneCallParams *p=linphone_core_create_default_call_parameters(lc);
2411         p->has_video &= !!lc->video_policy.automatically_initiate;
2412         call=linphone_core_invite_address_with_params (lc,addr,p);
2413         linphone_call_params_destroy(p);
2414         return call;
2415 }
2416
2417
2418 /**
2419  * Initiates an outgoing call given a destination LinphoneAddress
2420  *
2421  * @ingroup call_control
2422  * @param lc the LinphoneCore object
2423  * @param addr the destination of the call (sip address).
2424         @param params call parameters
2425  *
2426  * The LinphoneAddress can be constructed directly using linphone_address_new(), or
2427  * created by linphone_core_interpret_url().
2428  * The application doesn't own a reference to the returned LinphoneCall object.
2429  * Use linphone_call_ref() to safely keep the LinphoneCall pointer valid within your application.
2430  *
2431  * @return a LinphoneCall object or NULL in case of failure
2432 **/
2433 LinphoneCall * linphone_core_invite_address_with_params(LinphoneCore *lc, const LinphoneAddress *addr, const LinphoneCallParams *params)
2434 {
2435         const char *route=NULL;
2436         const char *from=NULL;
2437         LinphoneProxyConfig *proxy=NULL,*dest_proxy=NULL;
2438         LinphoneAddress *parsed_url2=NULL;
2439         char *real_url=NULL;
2440         LinphoneCall *call;
2441         bool_t defer = FALSE;
2442
2443         linphone_core_preempt_sound_resources(lc);
2444
2445         if(!linphone_core_can_we_add_call(lc)){
2446                 if (lc->vtable.display_warning)
2447                         lc->vtable.display_warning(lc,_("Sorry, we have reached the maximum number of simultaneous calls"));
2448                 return NULL;
2449         }
2450         linphone_core_get_default_proxy(lc,&proxy);
2451         route=linphone_core_get_route(lc);
2452
2453         real_url=linphone_address_as_string(addr);
2454         dest_proxy=linphone_core_lookup_known_proxy(lc,addr);
2455
2456         if (proxy!=dest_proxy && dest_proxy!=NULL) {
2457                 ms_message("Overriding default proxy setting for this call:");
2458                 ms_message("The used identity will be %s",linphone_proxy_config_get_identity(dest_proxy));
2459         }
2460
2461         if (dest_proxy!=NULL)
2462                 from=linphone_proxy_config_get_identity(dest_proxy);
2463         else if (proxy!=NULL)
2464                 from=linphone_proxy_config_get_identity(proxy);
2465
2466         /* if no proxy or no identity defined for this proxy, default to primary contact*/
2467         if (from==NULL) from=linphone_core_get_primary_contact(lc);
2468
2469         parsed_url2=linphone_address_new(from);
2470
2471         call=linphone_call_new_outgoing(lc,parsed_url2,linphone_address_clone(addr),params);
2472         call->dest_proxy=dest_proxy;
2473         sal_op_set_route(call->op,route);
2474
2475         if(linphone_core_add_call(lc,call)!= 0)
2476         {
2477                 ms_warning("we had a problem in adding the call into the invite ... weird");
2478                 linphone_call_unref(call);
2479                 return NULL;
2480         }
2481         /* this call becomes now the current one*/
2482         lc->current_call=call;
2483         linphone_call_set_state (call,LinphoneCallOutgoingInit,"Starting outgoing call");
2484         if (linphone_core_get_firewall_policy(call->core) == LinphonePolicyUseIce) {
2485                 /* Defer the start of the call after the ICE gathering process. */
2486                 linphone_call_init_media_streams(call);
2487                 linphone_call_start_media_streams_for_ice_gathering(call);
2488                 call->start_time=time(NULL);
2489                 if (linphone_core_gather_ice_candidates(lc,call)<0) {
2490                         /* Ice candidates gathering failed, proceed with the call anyway. */
2491                         linphone_call_delete_ice_session(call);
2492                         linphone_call_stop_media_streams_for_ice_gathering(call);
2493                 } else {
2494                         defer = TRUE;
2495                 }
2496         }
2497         else if (linphone_core_get_firewall_policy(call->core) == LinphonePolicyUseUpnp) {
2498 #ifdef BUILD_UPNP
2499                 linphone_call_init_media_streams(call);
2500                 call->start_time=time(NULL);
2501                 if (linphone_core_update_upnp(lc,call)<0) {
2502                         /* uPnP port mappings failed, proceed with the call anyway. */
2503                         linphone_call_delete_upnp_session(call);
2504                 } else {
2505                         defer = TRUE;
2506                 }
2507 #endif //BUILD_UPNP
2508         }
2509
2510         if (call->dest_proxy==NULL && lc->sip_conf.ping_with_options==TRUE){
2511                 /*defer the start of the call after the OPTIONS ping*/
2512                 call->ping_replied=FALSE;
2513                 call->ping_op=sal_op_new(lc->sal);
2514                 sal_ping(call->ping_op,from,real_url);
2515                 sal_op_set_user_pointer(call->ping_op,call);
2516                 call->start_time=time(NULL);
2517         }else{
2518                 if (defer==FALSE) linphone_core_start_invite(lc,call);
2519         }
2520
2521         if (real_url!=NULL) ms_free(real_url);
2522         return call;
2523 }
2524
2525 /**
2526  * Performs a simple call transfer to the specified destination.
2527  *
2528  * The remote endpoint is expected to issue a new call to the specified destination.
2529  * The current call remains active and thus can be later paused or terminated.
2530 **/
2531 int linphone_core_transfer_call(LinphoneCore *lc, LinphoneCall *call, const char *url)
2532 {
2533         char *real_url=NULL;
2534         LinphoneAddress *real_parsed_url=linphone_core_interpret_url(lc,url);
2535
2536         if (!real_parsed_url){
2537                 /* bad url */
2538                 return -1;
2539         }
2540         if (call==NULL){
2541                 ms_warning("No established call to refer.");
2542                 return -1;
2543         }
2544         //lc->call=NULL; //Do not do that you will lose the call afterward . . .
2545         real_url=linphone_address_as_string (real_parsed_url);
2546         sal_call_refer(call->op,real_url);
2547         ms_free(real_url);
2548         linphone_address_destroy(real_parsed_url);
2549         linphone_call_set_transfer_state(call, LinphoneCallOutgoingInit);
2550         return 0;
2551 }
2552
2553 /**
2554  * Transfer a call to destination of another running call. This is used for "attended transfer" scenarios.
2555  * @param lc linphone core object
2556  * @param call a running call you want to transfer
2557  * @param dest a running call whose remote person will receive the transfer
2558  *
2559  * The transfered call is supposed to be in paused state, so that it is able to accept the transfer immediately.
2560  * The destination call is a call previously established to introduce the transfered person.
2561  * This method will send a transfer request to the transfered person. The phone of the transfered is then
2562  * expected to automatically call to the destination of the transfer. The receiver of the transfer will then automatically
2563  * close the call with us (the 'dest' call).
2564 **/
2565 int linphone_core_transfer_call_to_another(LinphoneCore *lc, LinphoneCall *call, LinphoneCall *dest){
2566         int result = sal_call_refer_with_replaces (call->op,dest->op);
2567         linphone_call_set_transfer_state(call, LinphoneCallOutgoingInit);
2568         return result;
2569 }
2570
2571 bool_t linphone_core_inc_invite_pending(LinphoneCore*lc){
2572         LinphoneCall *call = linphone_core_get_current_call(lc);
2573         if(call != NULL)
2574         {
2575                 if(call->dir==LinphoneCallIncoming
2576                         && (call->state == LinphoneCallIncomingReceived || call->state ==  LinphoneCallIncomingEarlyMedia))
2577                         return TRUE;
2578         }
2579         return FALSE;
2580 }
2581
2582 void linphone_core_notify_incoming_call(LinphoneCore *lc, LinphoneCall *call){
2583         char *barmesg;
2584         char *tmp;
2585         LinphoneAddress *from_parsed;
2586         SalMediaDescription *md;
2587         bool_t propose_early_media=lp_config_get_int(lc->config,"sip","incoming_calls_early_media",FALSE);
2588         const char *ringback_tone=linphone_core_get_remote_ringback_tone (lc);
2589
2590         linphone_call_make_local_media_description(lc,call);
2591         sal_call_set_local_media_description(call->op,call->localdesc);
2592         md=sal_call_get_final_media_description(call->op);
2593         if (md && sal_media_description_empty(md)){
2594                 sal_call_decline(call->op,SalReasonMedia,NULL);
2595                 linphone_call_unref(call);
2596                 return;
2597         }
2598
2599         from_parsed=linphone_address_new(sal_op_get_from(call->op));
2600         linphone_address_clean(from_parsed);
2601         tmp=linphone_address_as_string(from_parsed);
2602         linphone_address_destroy(from_parsed);
2603         barmesg=ortp_strdup_printf("%s %s%s",tmp,_("is contacting you"),
2604             (sal_call_autoanswer_asked(call->op)) ?_(" and asked autoanswer."):_("."));
2605         if (lc->vtable.show) lc->vtable.show(lc);
2606         if (lc->vtable.display_status)
2607             lc->vtable.display_status(lc,barmesg);
2608
2609         /* play the ring if this is the only call*/
2610         if (ms_list_size(lc->calls)==1){
2611                 lc->current_call=call;
2612                 if (lc->ringstream && lc->dmfs_playing_start_time!=0){
2613                         ring_stop(lc->ringstream);
2614                         lc->ringstream=NULL;
2615                         lc->dmfs_playing_start_time=0;
2616                 }
2617                 if (lc->sound_conf.ring_sndcard!=NULL){
2618                         if(lc->ringstream==NULL && lc->sound_conf.local_ring){
2619                                 MSSndCard *ringcard=lc->sound_conf.lsd_card ?lc->sound_conf.lsd_card : lc->sound_conf.ring_sndcard;
2620                                 ms_message("Starting local ring...");
2621                                 lc->ringstream=ring_start(lc->sound_conf.local_ring,2000,ringcard);
2622                         }
2623                         else
2624                         {
2625                                 ms_message("the local ring is already started");
2626                         }
2627                 }
2628         }else{
2629                 /* else play a tone within the context of the current call */
2630                 call->ringing_beep=TRUE;
2631                 linphone_core_play_tone(lc);
2632         }
2633
2634         linphone_call_set_state(call,LinphoneCallIncomingReceived,"Incoming call");
2635
2636         if (call->state==LinphoneCallIncomingReceived){
2637                 sal_call_notify_ringing(call->op,propose_early_media || ringback_tone!=NULL);
2638
2639                 if (propose_early_media || ringback_tone!=NULL){
2640                         linphone_call_set_state(call,LinphoneCallIncomingEarlyMedia,"Incoming call early media");
2641                         md=sal_call_get_final_media_description(call->op);
2642                         linphone_core_update_streams(lc,call,md);
2643                 }
2644                 if (sal_call_get_replaces(call->op)!=NULL && lp_config_get_int(lc->config,"sip","auto_answer_replacing_calls",1)){
2645                         linphone_core_accept_call(lc,call);
2646                 }
2647         }
2648         linphone_call_unref(call);
2649
2650         ms_free(barmesg);
2651         ms_free(tmp);
2652 }
2653
2654 int linphone_core_start_update_call(LinphoneCore *lc, LinphoneCall *call){
2655         const char *subject;
2656         call->camera_active=call->params.has_video;
2657         if (call->ice_session != NULL) {
2658                 linphone_core_update_local_media_description_from_ice(call->localdesc, call->ice_session);
2659         }
2660 #ifdef BUILD_UPNP
2661         if(call->upnp_session != NULL) {
2662                 linphone_core_update_local_media_description_from_upnp(call->localdesc, call->upnp_session);
2663         }
2664 #endif //BUILD_UPNP
2665         if (call->params.in_conference){
2666                 subject="Conference";
2667         }else{
2668                 subject="Media change";
2669         }
2670         if (lc->vtable.display_status)
2671                 lc->vtable.display_status(lc,_("Modifying call parameters..."));
2672         sal_call_set_local_media_description (call->op,call->localdesc);
2673         return sal_call_update(call->op,subject);
2674 }
2675
2676 /**
2677  * @ingroup call_control
2678  * Updates a running call according to supplied call parameters or parameters changed in the LinphoneCore.
2679  *
2680  * In this version this is limited to the following use cases:
2681  * - setting up/down the video stream according to the video parameter of the LinphoneCallParams (see linphone_call_params_enable_video() ).
2682  * - changing the size of the transmitted video after calling linphone_core_set_preferred_video_size()
2683  *
2684  * In case no changes are requested through the LinphoneCallParams argument, then this argument can be omitted and set to NULL.
2685  * @param lc the core
2686  * @param call the call to be updated
2687  * @param params the new call parameters to use. (may be NULL)
2688  * @return 0 if successful, -1 otherwise.
2689 **/
2690 int linphone_core_update_call(LinphoneCore *lc, LinphoneCall *call, const LinphoneCallParams *params){
2691         int err=0;
2692         if (params!=NULL){
2693                 linphone_call_set_state(call,LinphoneCallUpdating,"Updating call");
2694 #ifdef VIDEO_ENABLED
2695                 bool_t has_video = call->params.has_video;
2696                 if(call->videostream != NULL && !params->has_video) {
2697                         if ((call->ice_session != NULL)) {
2698                                 ice_session_remove_check_list(call->ice_session, call->videostream->ice_check_list);
2699                                 call->videostream->ice_check_list = NULL;
2700                         }
2701                 }
2702                 call->params = *params;
2703                 linphone_call_make_local_media_description(lc, call);
2704                 if (!has_video && call->params.has_video) {
2705                         if (call->ice_session != NULL) {
2706                                 /* Defer call update until the ICE candidates gathering process has finished. */
2707                                 ms_message("Defer call update to gather ICE candidates");
2708                                 linphone_call_init_video_stream(call);
2709                                 video_stream_prepare_video(call->videostream);
2710                                 if (linphone_core_gather_ice_candidates(lc,call)<0) {
2711                                         /* Ice candidates gathering failed, proceed with the call anyway. */
2712                                         linphone_call_delete_ice_session(call);
2713                                 } else {
2714                                         return err;
2715                                 }
2716                         }
2717                 }
2718 #ifdef BUILD_UPNP
2719                 if(call->upnp_session != NULL) {
2720                         ms_message("Defer call update to add uPnP port mappings");
2721                         linphone_call_init_video_stream(call);
2722                         video_stream_prepare_video(call->videostream);
2723                         if (linphone_core_update_upnp(lc, call)<0) {
2724                                 /* uPnP port mappings failed, proceed with the call anyway. */
2725                                 linphone_call_delete_upnp_session(call);
2726                         } else {
2727                                 return err;
2728                         }
2729                 }
2730 #endif //BUILD_UPNP
2731 #endif
2732                 err = linphone_core_start_update_call(lc, call);
2733         }else{
2734 #ifdef VIDEO_ENABLED
2735                 if (call->videostream!=NULL){
2736                         video_stream_set_sent_video_size(call->videostream,linphone_core_get_preferred_video_size(lc));
2737                         if (call->camera_active && call->videostream->cam!=lc->video_conf.device){
2738                                 video_stream_change_camera(call->videostream,lc->video_conf.device);
2739                         }else video_stream_update_video_params(call->videostream);
2740                 }
2741 #endif
2742         }
2743
2744         return err;
2745 }
2746
2747 /**
2748  * @ingroup call_control
2749  * When receiving a #LinphoneCallUpdatedByRemote state notification, prevent LinphoneCore from performing an automatic answer.
2750  *
2751  * When receiving a #LinphoneCallUpdatedByRemote state notification (ie an incoming reINVITE), the default behaviour of
2752  * LinphoneCore is to automatically answer the reINIVTE with call parameters unchanged.
2753  * However when for example when the remote party updated the call to propose a video stream, it can be useful
2754  * to prompt the user before answering. This can be achieved by calling linphone_core_defer_call_update() during
2755  * the call state notifiacation, to deactivate the automatic answer that would just confirm the audio but reject the video.
2756  * Then, when the user responds to dialog prompt, it becomes possible to call linphone_core_accept_call_update() to answer
2757  * the reINVITE, with eventually video enabled in the LinphoneCallParams argument.
2758  *
2759  * @return 0 if successful, -1 if the linphone_core_defer_call_update() was done outside a #LinphoneCallUpdatedByRemote notification, which is illegal.
2760 **/
2761 int linphone_core_defer_call_update(LinphoneCore *lc, LinphoneCall *call){
2762         if (call->state==LinphoneCallUpdatedByRemote){
2763                 call->defer_update=TRUE;
2764                 return 0;
2765         }
2766         ms_error("linphone_core_defer_call_update() not done in state LinphoneCallUpdatedByRemote");
2767         return -1;
2768 }
2769
2770 int linphone_core_start_accept_call_update(LinphoneCore *lc, LinphoneCall *call){
2771         SalMediaDescription *md;
2772         if (call->ice_session != NULL) {
2773                 if (ice_session_nb_losing_pairs(call->ice_session) > 0) {
2774                         /* Defer the sending of the answer until there are no losing pairs left. */
2775                         return 0;
2776                 }
2777                 linphone_core_update_local_media_description_from_ice(call->localdesc, call->ice_session);
2778         }
2779 #ifdef BUILD_UPNP
2780         if(call->upnp_session != NULL) {
2781                 linphone_core_update_local_media_description_from_upnp(call->localdesc, call->upnp_session);
2782         }
2783 #endif //BUILD_UPNP
2784         sal_call_set_local_media_description(call->op,call->localdesc);
2785         sal_call_accept(call->op);
2786         md=sal_call_get_final_media_description(call->op);
2787         if (md && !sal_media_description_empty(md))
2788                 linphone_core_update_streams (lc,call,md);
2789         linphone_call_set_state(call,LinphoneCallStreamsRunning,"Connected (streams running)");
2790         return 0;
2791 }
2792
2793 /**
2794  * @ingroup call_control
2795  * Accept call modifications initiated by other end.
2796  *
2797  * This call may be performed in response to a #LinphoneCallUpdatedByRemote state notification.
2798  * When such notification arrives, the application can decide to call linphone_core_defer_update_call() so that it can
2799  * have the time to prompt the user. linphone_call_get_remote_params() can be used to get information about the call parameters
2800  * requested by the other party, such as whether a video stream is requested.
2801  *
2802  * When the user accepts or refuse the change, linphone_core_accept_call_update() can be done to answer to the other party.
2803  * If params is NULL, then the same call parameters established before the update request will continue to be used (no change).
2804  * If params is not NULL, then the update will be accepted according to the parameters passed.
2805  * Typical example is when a user accepts to start video, then params should indicate that video stream should be used
2806  * (see linphone_call_params_enable_video()).
2807  * @param lc the linphone core object.
2808  * @param call the LinphoneCall object
2809  * @param params a LinphoneCallParams object describing the call parameters to accept.
2810  * @return 0 if sucessful, -1 otherwise (actually when this function call is performed outside ot #LinphoneCallUpdatedByRemote state).
2811 **/
2812 int linphone_core_accept_call_update(LinphoneCore *lc, LinphoneCall *call, const LinphoneCallParams *params){
2813 #ifdef VIDEO_ENABLED
2814         bool_t old_has_video = call->params.has_video;
2815 #endif
2816         if (call->state!=LinphoneCallUpdatedByRemote){
2817                 ms_error("linphone_core_accept_update(): invalid state %s to call this function.",
2818                          linphone_call_state_to_string(call->state));
2819                 return -1;
2820         }
2821         if (params==NULL){
2822                 call->params.has_video=lc->video_policy.automatically_accept || call->current_params.has_video;
2823         }else
2824                 call->params=*params;
2825
2826         if (call->params.has_video && !linphone_core_video_enabled(lc)){
2827                 ms_warning("linphone_core_accept_call_update(): requested video but video support is globally disabled. Refusing video.");
2828                 call->params.has_video=FALSE;
2829         }
2830         if (call->current_params.in_conference) {
2831                 ms_warning("Video isn't supported in conference");
2832                 call->params.has_video = FALSE;
2833         }
2834         call->params.has_video &= linphone_core_media_description_contains_video_stream(sal_call_get_remote_media_description(call->op));
2835         call->camera_active=call->params.has_video;
2836         linphone_call_make_local_media_description(lc,call);
2837         if (call->ice_session != NULL) {
2838                 linphone_core_update_ice_from_remote_media_description(call, sal_call_get_remote_media_description(call->op));
2839 #ifdef VIDEO_ENABLED
2840                 if ((call->ice_session != NULL) &&!ice_session_candidates_gathered(call->ice_session)) {
2841                         if ((call->params.has_video) && (call->params.has_video != old_has_video)) {
2842                                 linphone_call_init_video_stream(call);
2843                                 video_stream_prepare_video(call->videostream);
2844                                 if (linphone_core_gather_ice_candidates(lc,call)<0) {
2845                                         /* Ice candidates gathering failed, proceed with the call anyway. */
2846                                         linphone_call_delete_ice_session(call);
2847                                 } else return 0;
2848                         }
2849                 }
2850 #endif
2851         }
2852
2853 #if BUILD_UPNP
2854         if(call->upnp_session != NULL) {
2855                 if ((call->params.has_video) && (call->params.has_video != old_has_video)) {
2856                         linphone_call_init_video_stream(call);
2857                         video_stream_prepare_video(call->videostream);
2858                         if (linphone_core_update_upnp_from_remote_media_description(call, sal_call_get_remote_media_description(call->op))<0) {
2859                                 /* uPnP update failed, proceed with the call anyway. */
2860                                 linphone_call_delete_upnp_session(call);
2861                         } else return 0;
2862                 }
2863         }
2864 #endif //BUILD_UPNP
2865
2866         linphone_core_start_accept_call_update(lc, call);
2867         return 0;
2868 }
2869
2870 /**
2871  * Accept an incoming call.
2872  *
2873  * @ingroup call_control
2874  * Basically the application is notified of incoming calls within the
2875  * call_state_changed callback of the #LinphoneCoreVTable structure, where it will receive
2876  * a LinphoneCallIncoming event with the associated LinphoneCall object.
2877  * The application can later accept the call using this method.
2878  * @param lc the LinphoneCore object
2879  * @param call the LinphoneCall object representing the call to be answered.
2880  *
2881 **/
2882 int linphone_core_accept_call(LinphoneCore *lc, LinphoneCall *call){
2883         return linphone_core_accept_call_with_params(lc,call,NULL);
2884 }
2885
2886 /**
2887  * Accept an incoming call, with parameters.
2888  *
2889  * @ingroup call_control
2890  * Basically the application is notified of incoming calls within the
2891  * call_state_changed callback of the #LinphoneCoreVTable structure, where it will receive
2892  * a LinphoneCallIncoming event with the associated LinphoneCall object.
2893  * The application can later accept the call using
2894  * this method.
2895  * @param lc the LinphoneCore object
2896  * @param call the LinphoneCall object representing the call to be answered.
2897  * @param params the specific parameters for this call, for example whether video is accepted or not. Use NULL to use default parameters.
2898  *
2899 **/
2900 int linphone_core_accept_call_with_params(LinphoneCore *lc, LinphoneCall *call, const LinphoneCallParams *params)
2901 {
2902         LinphoneProxyConfig *cfg=NULL;
2903         const char *contact=NULL;
2904         SalOp *replaced;
2905         SalMediaDescription *new_md;
2906         bool_t was_ringing=FALSE;
2907
2908         if (call==NULL){
2909                 //if just one call is present answer the only one ...
2910                 if(linphone_core_get_calls_nb (lc) != 1)
2911                         return -1;
2912                 else
2913                         call = (LinphoneCall*)linphone_core_get_calls(lc)->data;
2914         }
2915
2916         if (call->state==LinphoneCallConnected){
2917                 /*call already accepted*/
2918                 return -1;
2919         }
2920
2921         /* check if this call is supposed to replace an already running one*/
2922         replaced=sal_call_get_replaces(call->op);
2923         if (replaced){
2924                 LinphoneCall *rc=(LinphoneCall*)sal_op_get_user_pointer (replaced);
2925                 if (rc){
2926                         ms_message("Call %p replaces call %p. This last one is going to be terminated automatically.",
2927                                    call,rc);
2928                         linphone_core_terminate_call(lc,rc);
2929                 }
2930         }
2931
2932         if (lc->current_call!=call){
2933                 linphone_core_preempt_sound_resources(lc);
2934         }
2935
2936         /*stop ringing */
2937         if (lc->ringstream!=NULL) {
2938                 ms_message("stop ringing");
2939                 ring_stop(lc->ringstream);
2940                 ms_message("ring stopped");
2941                 lc->ringstream=NULL;
2942                 was_ringing=TRUE;
2943         }
2944         if (call->ringing_beep){
2945                 linphone_core_stop_dtmf(lc);
2946                 call->ringing_beep=FALSE;
2947         }
2948
2949         linphone_core_get_default_proxy(lc,&cfg);
2950         call->dest_proxy=cfg;
2951         call->dest_proxy=linphone_core_lookup_known_proxy(lc,call->log->to);
2952
2953         if (cfg!=call->dest_proxy && call->dest_proxy!=NULL) {
2954                 ms_message("Overriding default proxy setting for this call:");
2955                 ms_message("The used identity will be %s",linphone_proxy_config_get_identity(call->dest_proxy));
2956         }
2957         /*try to be best-effort in giving real local or routable contact address*/
2958         contact=get_fixed_contact(lc,call,call->dest_proxy);
2959         if (contact)
2960                 sal_op_set_contact(call->op,contact);
2961
2962         if (params){
2963                 const SalMediaDescription *md = sal_call_get_remote_media_description(call->op);
2964                 call->params=*params;
2965                 // There might not be a md if the INVITE was lacking an SDP
2966                 // In this case we use the parameters as is.
2967                 if (md) call->params.has_video &= linphone_core_media_description_contains_video_stream(md);
2968                 call->camera_active=call->params.has_video;
2969                 linphone_call_make_local_media_description(lc,call);
2970                 sal_call_set_local_media_description(call->op,call->localdesc);
2971         }
2972
2973         if (call->audiostream==NULL)
2974                 linphone_call_init_media_streams(call);
2975         if (!was_ringing && call->audiostream->ticker==NULL){
2976                 audio_stream_prepare_sound(call->audiostream,lc->sound_conf.play_sndcard,lc->sound_conf.capt_sndcard);
2977         }
2978
2979         sal_call_accept(call->op);
2980         if (lc->vtable.display_status!=NULL)
2981                 lc->vtable.display_status(lc,_("Connected."));
2982         lc->current_call=call;
2983         linphone_call_set_state(call,LinphoneCallConnected,"Connected");
2984         new_md=sal_call_get_final_media_description(call->op);
2985         linphone_core_update_streams(lc, call, new_md);
2986         if (new_md){
2987                 linphone_call_set_state(call,LinphoneCallStreamsRunning,"Connected (streams running)");
2988         }else call->media_pending=TRUE;
2989
2990         ms_message("call answered.");
2991         return 0;
2992 }
2993
2994 int linphone_core_abort_call(LinphoneCore *lc, LinphoneCall *call, const char *error){
2995         sal_call_terminate(call->op);
2996
2997         /*stop ringing*/
2998         if (lc->ringstream!=NULL) {
2999                 ring_stop(lc->ringstream);
3000                 lc->ringstream=NULL;
3001         }
3002         linphone_call_stop_media_streams(call);
3003         if (lc->vtable.display_status!=NULL)
3004                 lc->vtable.display_status(lc,_("Call aborted") );
3005         linphone_call_set_state(call,LinphoneCallError,error);
3006         return 0;
3007 }
3008
3009 static void terminate_call(LinphoneCore *lc, LinphoneCall *call){
3010         if (call->state==LinphoneCallIncomingReceived){
3011                 if (call->reason!=LinphoneReasonNotAnswered)
3012                         call->reason=LinphoneReasonDeclined;
3013         }
3014         /*stop ringing*/
3015         if (lc->ringstream!=NULL) {
3016                 ring_stop(lc->ringstream);
3017                 lc->ringstream=NULL;
3018         }
3019
3020         linphone_call_stop_media_streams(call);
3021
3022 #ifdef BUILD_UPNP
3023         linphone_call_delete_upnp_session(call);
3024 #endif //BUILD_UPNP
3025
3026         if (lc->vtable.display_status!=NULL)
3027                 lc->vtable.display_status(lc,_("Call ended") );
3028         linphone_call_set_state(call,LinphoneCallEnd,"Call terminated");
3029 }
3030
3031 int linphone_core_redirect_call(LinphoneCore *lc, LinphoneCall *call, const char *redirect_uri){
3032         if (call->state==LinphoneCallIncomingReceived){
3033                 sal_call_decline(call->op,SalReasonRedirect,redirect_uri);
3034                 call->reason=LinphoneReasonDeclined;
3035                 terminate_call(lc,call);
3036         }else{
3037                 ms_error("Bad state for call redirection.");
3038                 return -1;
3039     }
3040         return 0;
3041 }
3042
3043
3044 /**
3045  * Terminates a call.
3046  *
3047  * @ingroup call_control
3048  * @param lc the LinphoneCore
3049  * @param the_call the LinphoneCall object representing the call to be terminated.
3050 **/
3051 int linphone_core_terminate_call(LinphoneCore *lc, LinphoneCall *the_call)
3052 {
3053         LinphoneCall *call;
3054         if (the_call == NULL){
3055                 call = linphone_core_get_current_call(lc);
3056                 if (ms_list_size(lc->calls)==1){
3057                         call=(LinphoneCall*)lc->calls->data;
3058                 }else{
3059                         ms_warning("No unique call to terminate !");
3060                         return -1;
3061                 }
3062         }
3063         else
3064         {
3065                 call = the_call;
3066         }
3067         sal_call_terminate(call->op);
3068         terminate_call(lc,call);
3069         return 0;
3070 }
3071
3072 /**
3073  * Decline a pending incoming call, with a reason.
3074  * @param lc the linphone core
3075  * @param call the LinphoneCall, must be in the IncomingReceived state.
3076  * @param reason the reason for rejecting the call: LinphoneReasonDeclined or LinphoneReasonBusy
3077 **/
3078 int linphone_core_decline_call(LinphoneCore *lc, LinphoneCall * call, LinphoneReason reason){
3079         SalReason sal_reason=SalReasonUnknown;
3080         if (call->state!=LinphoneCallIncomingReceived && call->state!=LinphoneCallIncomingEarlyMedia){
3081                 ms_error("linphone_core_decline_call(): Cannot decline a call that is in state %s",linphone_call_state_to_string(call->state));
3082                 return -1;
3083         }
3084         switch(reason){
3085                 case LinphoneReasonDeclined:
3086                         sal_reason=SalReasonDeclined;
3087                 break;
3088                 case LinphoneReasonBusy:
3089                         sal_reason=SalReasonBusy;
3090                 break;
3091                 default:
3092                         ms_error("linphone_core_decline_call(): unsupported reason %s",linphone_reason_to_string(reason));
3093                         return -1;
3094                 break;
3095         }
3096         sal_call_decline(call->op,sal_reason,NULL);
3097         terminate_call(lc,call);
3098         return 0;
3099 }
3100
3101 /**
3102  * Terminates all the calls.
3103  *
3104  * @ingroup call_control
3105  * @param lc The LinphoneCore
3106 **/
3107 int linphone_core_terminate_all_calls(LinphoneCore *lc){
3108         MSList *calls=lc->calls;
3109         while(calls) {
3110                 LinphoneCall *c=(LinphoneCall*)calls->data;
3111                 calls=calls->next;
3112                 linphone_core_terminate_call(lc,c);
3113         }
3114         return 0;
3115 }
3116
3117 /**
3118  * Returns the current list of calls.
3119  *
3120  * Note that this list is read-only and might be changed by the core after a function call to linphone_core_iterate().
3121  * Similarly the LinphoneCall objects inside it might be destroyed without prior notice.
3122  * To hold references to LinphoneCall object into your program, you must use linphone_call_ref().
3123  *
3124  * @ingroup call_control
3125 **/
3126 const MSList *linphone_core_get_calls(LinphoneCore *lc)
3127 {
3128         return lc->calls;
3129 }
3130
3131 /**
3132  * Returns TRUE if there is a call running.
3133  *
3134  * @ingroup call_control
3135 **/
3136 bool_t linphone_core_in_call(const LinphoneCore *lc){
3137         return linphone_core_get_current_call((LinphoneCore *)lc)!=NULL || linphone_core_is_in_conference(lc);
3138 }
3139
3140 /**
3141  * Returns The _LinphoneCall struct of the current call if one is in call
3142  *
3143  * @ingroup call_control
3144 **/
3145 LinphoneCall *linphone_core_get_current_call(const LinphoneCore *lc)
3146 {
3147         return lc->current_call;
3148 }
3149
3150 /**
3151  * Pauses the call. If a music file has been setup using linphone_core_set_play_file(),
3152  * this file will be played to the remote user.
3153  *
3154  * @ingroup call_control
3155 **/
3156 int linphone_core_pause_call(LinphoneCore *lc, LinphoneCall *call)
3157 {
3158         const char *subject=NULL;
3159
3160         if (call->state!=LinphoneCallStreamsRunning && call->state!=LinphoneCallPausedByRemote){
3161                 ms_warning("Cannot pause this call, it is not active.");
3162                 return -1;
3163         }
3164         linphone_call_make_local_media_description(lc,call);
3165         if (call->ice_session != NULL) {
3166                 linphone_core_update_local_media_description_from_ice(call->localdesc, call->ice_session);
3167         }
3168 #ifdef BUILD_UPNP
3169         if(call->upnp_session != NULL) {
3170                 linphone_core_update_local_media_description_from_upnp(call->localdesc, call->upnp_session);
3171         }
3172 #endif //BUILD_UPNP
3173         if (sal_media_description_has_dir(call->resultdesc,SalStreamSendRecv)){
3174                 sal_media_description_set_dir(call->localdesc,SalStreamSendOnly);
3175                 subject="Call on hold";
3176         }else if (sal_media_description_has_dir(call->resultdesc,SalStreamRecvOnly)){
3177                 sal_media_description_set_dir(call->localdesc,SalStreamSendOnly);
3178                 subject="Call on hold for me too";
3179         }else{
3180                 ms_error("No reason to pause this call, it is already paused or inactive.");
3181                 return -1;
3182         }
3183         sal_call_set_local_media_description(call->op,call->localdesc);
3184         if (sal_call_update(call->op,subject) != 0){
3185                 if (lc->vtable.display_warning)
3186                         lc->vtable.display_warning(lc,_("Could not pause the call"));
3187         }
3188         lc->current_call=NULL;
3189         linphone_call_set_state(call,LinphoneCallPausing,"Pausing call");
3190         if (lc->vtable.display_status)
3191                 lc->vtable.display_status(lc,_("Pausing the current call..."));
3192         if (call->audiostream || call->videostream)
3193                 linphone_call_stop_media_streams (call);
3194         return 0;
3195 }
3196
3197 /**
3198  * Pause all currently running calls.
3199 **/
3200 int linphone_core_pause_all_calls(LinphoneCore *lc){
3201         const MSList *elem;
3202         for(elem=lc->calls;elem!=NULL;elem=elem->next){
3203                 LinphoneCall *call=(LinphoneCall *)elem->data;
3204                 LinphoneCallState cs=linphone_call_get_state(call);
3205                 if (cs==LinphoneCallStreamsRunning || cs==LinphoneCallPausedByRemote){
3206                         linphone_core_pause_call(lc,call);
3207                 }
3208         }
3209         return 0;
3210 }
3211
3212 void linphone_core_preempt_sound_resources(LinphoneCore *lc){
3213         LinphoneCall *current_call;
3214         if (linphone_core_is_in_conference(lc)){
3215                 linphone_core_leave_conference(lc);
3216                 return;
3217         }
3218         current_call=linphone_core_get_current_call(lc);
3219         if(current_call != NULL){
3220                 ms_message("Pausing automatically the current call.");
3221                 linphone_core_pause_call(lc,current_call);
3222         }
3223 }
3224
3225 /**
3226  * Resumes the call.
3227  *
3228  * @ingroup call_control
3229 **/
3230 int linphone_core_resume_call(LinphoneCore *lc, LinphoneCall *the_call)
3231 {
3232         char temp[255]={0};
3233         LinphoneCall *call = the_call;
3234         const char *subject="Call resuming";
3235
3236         if(call->state!=LinphoneCallPaused ){
3237                 ms_warning("we cannot resume a call that has not been established and paused before");
3238                 return -1;
3239         }
3240         if (call->params.in_conference==FALSE){
3241                 linphone_core_preempt_sound_resources(lc);
3242                 ms_message("Resuming call %p",call);
3243         }
3244
3245         /* Stop playing music immediately. If remote side is a conference it
3246          prevents the participants to hear it while the 200OK comes back.*/
3247         if (call->audiostream) audio_stream_play(call->audiostream, NULL);
3248
3249         linphone_call_make_local_media_description(lc,the_call);
3250         if (call->ice_session != NULL) {
3251                 linphone_core_update_local_media_description_from_ice(call->localdesc, call->ice_session);
3252         }
3253 #ifdef BUILD_UPNP
3254         if(call->upnp_session != NULL) {
3255                 linphone_core_update_local_media_description_from_upnp(call->localdesc, call->upnp_session);
3256         }
3257 #endif //BUILD_UPNP
3258         sal_call_set_local_media_description(call->op,call->localdesc);
3259         sal_media_description_set_dir(call->localdesc,SalStreamSendRecv);
3260         if (call->params.in_conference && !call->current_params.in_conference) subject="Conference";
3261         if(sal_call_update(call->op,subject) != 0){
3262                 return -1;
3263         }
3264         linphone_call_set_state (call,LinphoneCallResuming,"Resuming");
3265         snprintf(temp,sizeof(temp)-1,"Resuming the call with %s",linphone_call_get_remote_address_as_string(call));
3266         if (lc->vtable.display_status)
3267                 lc->vtable.display_status(lc,temp);
3268         return 0;
3269 }
3270
3271 static int remote_address_compare(LinphoneCall *call, const LinphoneAddress *raddr){
3272         const LinphoneAddress *addr=linphone_call_get_remote_address (call);
3273         return !linphone_address_weak_equal (addr,raddr);
3274 }
3275
3276 /**
3277  * Get the call with the remote_address specified
3278  * @param lc
3279  * @param remote_address
3280  * @return the LinphoneCall of the call if found
3281  */
3282 LinphoneCall *linphone_core_get_call_by_remote_address(LinphoneCore *lc, const char *remote_address){
3283         LinphoneAddress *raddr=linphone_address_new(remote_address);
3284         MSList *elem=ms_list_find_custom(lc->calls,(int (*)(const void*,const void *))remote_address_compare,raddr);
3285         if (elem) return (LinphoneCall*) elem->data;
3286         return NULL;
3287 }
3288
3289 int linphone_core_send_publish(LinphoneCore *lc,
3290                                LinphoneOnlineStatus presence_mode)
3291 {
3292         const MSList *elem;
3293         for (elem=linphone_core_get_proxy_config_list(lc);elem!=NULL;elem=ms_list_next(elem)){
3294                 LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)elem->data;
3295                 if (cfg->publish) linphone_proxy_config_send_publish(cfg,presence_mode);
3296         }
3297         return 0;
3298 }
3299
3300 /**
3301  * Set the incoming call timeout in seconds.
3302  *
3303  * @ingroup call_control
3304  * If an incoming call isn't answered for this timeout period, it is
3305  * automatically declined.
3306 **/
3307 void linphone_core_set_inc_timeout(LinphoneCore *lc, int seconds){
3308         lc->sip_conf.inc_timeout=seconds;
3309         if (linphone_core_ready(lc)){
3310                 lp_config_set_int(lc->config,"sip","inc_timeout",seconds);
3311         }
3312 }
3313
3314 /**
3315  * Returns the incoming call timeout
3316  *
3317  * @ingroup call_control
3318  * See linphone_core_set_inc_timeout() for details.
3319 **/
3320 int linphone_core_get_inc_timeout(LinphoneCore *lc){
3321         return lc->sip_conf.inc_timeout;
3322 }
3323
3324 /**
3325  * Set the in call timeout in seconds.
3326  *
3327  * @ingroup call_control
3328  * After this timeout period, the call is automatically hangup.
3329 **/
3330 void linphone_core_set_in_call_timeout(LinphoneCore *lc, int seconds){
3331         lc->sip_conf.in_call_timeout=seconds;
3332 }
3333
3334 /**
3335  * Returns the in call timeout
3336  *
3337  * @ingroup call_control
3338  * See linphone_core_set_in_call_timeout() for details.
3339 **/
3340 int linphone_core_get_in_call_timeout(LinphoneCore *lc){
3341         return lc->sip_conf.in_call_timeout;
3342 }
3343
3344 void linphone_core_set_presence_info(LinphoneCore *lc,int minutes_away,
3345                                                                                                         const char *contact,
3346                                                                                                         LinphoneOnlineStatus presence_mode)
3347 {
3348         if (minutes_away>0) lc->minutes_away=minutes_away;
3349
3350         if (lc->alt_contact!=NULL) {
3351                 ms_free(lc->alt_contact);
3352                 lc->alt_contact=NULL;
3353         }
3354         if (contact) lc->alt_contact=ms_strdup(contact);
3355         if (lc->presence_mode!=presence_mode){
3356                 linphone_core_notify_all_friends(lc,presence_mode);
3357                 /*
3358                    Improve the use of all LINPHONE_STATUS available.
3359                    !TODO Do not mix "presence status" with "answer status code"..
3360                    Use correct parameter to follow sip_if_match/sip_etag.
3361                  */
3362                 linphone_core_send_publish(lc,presence_mode);
3363         }
3364         lc->presence_mode=presence_mode;
3365 }
3366
3367 LinphoneOnlineStatus linphone_core_get_presence_info(const LinphoneCore *lc){
3368         return lc->presence_mode;
3369 }
3370
3371 /**
3372  * Get playback sound level in 0-100 scale.
3373  *
3374  * @ingroup media_parameters
3375 **/
3376 int linphone_core_get_play_level(LinphoneCore *lc)
3377 {
3378         return lc->sound_conf.play_lev;
3379 }
3380
3381 /**
3382  * Get ring sound level in 0-100 scale
3383  *
3384  * @ingroup media_parameters
3385 **/
3386 int linphone_core_get_ring_level(LinphoneCore *lc)
3387 {
3388         return lc->sound_conf.ring_lev;
3389 }
3390
3391 /**
3392  * Get sound capture level in 0-100 scale
3393  *
3394  * @ingroup media_parameters
3395 **/
3396 int linphone_core_get_rec_level(LinphoneCore *lc){
3397         return lc->sound_conf.rec_lev;
3398 }
3399
3400 /**
3401  * Set sound ring level in 0-100 scale
3402  *
3403  * @ingroup media_parameters
3404 **/
3405 void linphone_core_set_ring_level(LinphoneCore *lc, int level){
3406         MSSndCard *sndcard;
3407         lc->sound_conf.ring_lev=level;
3408         sndcard=lc->sound_conf.ring_sndcard;
3409         if (sndcard) ms_snd_card_set_level(sndcard,MS_SND_CARD_PLAYBACK,level);
3410 }
3411
3412 /**
3413  * Allow to control microphone level:  gain in db
3414  *
3415  * @ingroup media_parameters
3416 **/
3417 void linphone_core_set_mic_gain_db (LinphoneCore *lc, float gaindb){
3418         float gain=gaindb;
3419         LinphoneCall *call=linphone_core_get_current_call (lc);
3420         AudioStream *st;
3421
3422         lc->sound_conf.soft_mic_lev=gaindb;
3423
3424         if (linphone_core_ready(lc)){
3425                 lp_config_set_float(lc->config,"sound","mic_gain_db",lc->sound_conf.soft_mic_lev);
3426         }
3427
3428         if (call==NULL || (st=call->audiostream)==NULL){
3429                 ms_message("linphone_core_set_mic_gain_db(): no active call.");
3430                 return;
3431         }
3432         if (st->volrecv){
3433                 ms_filter_call_method(st->volsend,MS_VOLUME_SET_DB_GAIN,&gain);
3434         }else ms_warning("Could not apply gain: gain control wasn't activated.");
3435 }
3436
3437 /**
3438  * Get microphone gain in db.
3439  *
3440  * @ingroup media_parameters
3441 **/
3442 float linphone_core_get_mic_gain_db(LinphoneCore *lc) {
3443         return lc->sound_conf.soft_mic_lev;
3444 }
3445
3446 /**
3447  * Allow to control play level before entering sound card:  gain in db
3448  *
3449  * @ingroup media_parameters
3450 **/
3451 void linphone_core_set_playback_gain_db (LinphoneCore *lc, float gaindb){
3452         float gain=gaindb;
3453         LinphoneCall *call=linphone_core_get_current_call (lc);
3454         AudioStream *st;
3455
3456         lc->sound_conf.soft_play_lev=gaindb;
3457         if (linphone_core_ready(lc)){
3458                 lp_config_set_float(lc->config,"sound","playback_gain_db",lc->sound_conf.soft_play_lev);
3459         }
3460
3461         if (call==NULL || (st=call->audiostream)==NULL){
3462                 ms_message("linphone_core_set_playback_gain_db(): no active call.");
3463                 return;
3464         }
3465         if (st->volrecv){
3466                 ms_filter_call_method(st->volrecv,MS_VOLUME_SET_DB_GAIN,&gain);
3467         }else ms_warning("Could not apply gain: gain control wasn't activated.");
3468 }
3469
3470 /**
3471  * Get playback gain in db before entering  sound card.
3472  *
3473  * @ingroup media_parameters
3474 **/
3475 float linphone_core_get_playback_gain_db(LinphoneCore *lc) {
3476         return lc->sound_conf.soft_play_lev;
3477 }
3478
3479 /**
3480  * Set sound playback level in 0-100 scale
3481  *
3482  * @ingroup media_parameters
3483 **/
3484 void linphone_core_set_play_level(LinphoneCore *lc, int level){
3485         MSSndCard *sndcard;
3486         lc->sound_conf.play_lev=level;
3487         sndcard=lc->sound_conf.play_sndcard;
3488         if (sndcard) ms_snd_card_set_level(sndcard,MS_SND_CARD_PLAYBACK,level);
3489 }
3490
3491 /**
3492  * Set sound capture level in 0-100 scale
3493  *
3494  * @ingroup media_parameters
3495 **/
3496 void linphone_core_set_rec_level(LinphoneCore *lc, int level)
3497 {
3498         MSSndCard *sndcard;
3499         lc->sound_conf.rec_lev=level;
3500         sndcard=lc->sound_conf.capt_sndcard;
3501         if (sndcard) ms_snd_card_set_level(sndcard,MS_SND_CARD_CAPTURE,level);
3502 }
3503
3504 static MSSndCard *get_card_from_string_id(const char *devid, unsigned int cap){
3505         MSSndCard *sndcard=NULL;
3506         if (devid!=NULL){
3507                 sndcard=ms_snd_card_manager_get_card(ms_snd_card_manager_get(),devid);
3508                 if (sndcard!=NULL &&
3509                         (ms_snd_card_get_capabilities(sndcard) & cap)==0 ){
3510                         ms_warning("%s card does not have the %s capability, ignoring.",
3511                                 devid,
3512                                 cap==MS_SND_CARD_CAP_CAPTURE ? "capture" : "playback");
3513                         sndcard=NULL;
3514                 }
3515         }
3516         if (sndcard==NULL) {
3517                 /* get a card that has read+write capabilities */
3518                 sndcard=ms_snd_card_manager_get_default_card(ms_snd_card_manager_get());
3519                 /* otherwise refine to the first card having the right capability*/
3520                 if (sndcard==NULL){
3521                         const MSList *elem=ms_snd_card_manager_get_list(ms_snd_card_manager_get());
3522                         for(;elem!=NULL;elem=elem->next){
3523                                 sndcard=(MSSndCard*)elem->data;
3524                                 if (ms_snd_card_get_capabilities(sndcard) & cap) break;
3525                         }
3526                 }
3527                 if (sndcard==NULL){/*looks like a bug! take the first one !*/
3528                         const MSList *elem=ms_snd_card_manager_get_list(ms_snd_card_manager_get());
3529                         if (elem) sndcard=(MSSndCard*)elem->data;
3530         }
3531         }
3532         if (sndcard==NULL) ms_error("Could not find a suitable soundcard !");
3533         return sndcard;
3534 }
3535
3536 /**
3537  * Returns true if the specified sound device can capture sound.
3538  *
3539  * @ingroup media_parameters
3540  * @param lc The LinphoneCore object
3541  * @param devid the device name as returned by linphone_core_get_sound_devices()
3542 **/
3543 bool_t linphone_core_sound_device_can_capture(LinphoneCore *lc, const char *devid){
3544         MSSndCard *sndcard;
3545         sndcard=ms_snd_card_manager_get_card(ms_snd_card_manager_get(),devid);
3546         if (sndcard!=NULL && (ms_snd_card_get_capabilities(sndcard) & MS_SND_CARD_CAP_CAPTURE)) return TRUE;
3547         return FALSE;
3548 }
3549
3550 /**
3551  * Returns true if the specified sound device can play sound.
3552  *
3553  * @ingroup media_parameters
3554  * @param lc The LinphoneCore object
3555  * @param devid the device name as returned by linphone_core_get_sound_devices()
3556 **/
3557 bool_t linphone_core_sound_device_can_playback(LinphoneCore *lc, const char *devid){
3558         MSSndCard *sndcard;
3559         sndcard=ms_snd_card_manager_get_card(ms_snd_card_manager_get(),devid);
3560         if (sndcard!=NULL && (ms_snd_card_get_capabilities(sndcard) & MS_SND_CARD_CAP_PLAYBACK)) return TRUE;
3561         return FALSE;
3562 }
3563
3564 /**
3565  * Sets the sound device used for ringing.
3566  *
3567  * @ingroup media_parameters
3568  * @param lc The LinphoneCore object
3569  * @param devid the device name as returned by linphone_core_get_sound_devices()
3570 **/
3571 int linphone_core_set_ringer_device(LinphoneCore *lc, const char * devid){
3572         MSSndCard *card=get_card_from_string_id(devid,MS_SND_CARD_CAP_PLAYBACK);
3573         lc->sound_conf.ring_sndcard=card;
3574         if (card && linphone_core_ready(lc))
3575                 lp_config_set_string(lc->config,"sound","ringer_dev_id",ms_snd_card_get_string_id(card));
3576         return 0;
3577 }
3578
3579 /**
3580  * Sets the sound device used for playback.
3581  *
3582  * @ingroup media_parameters
3583  * @param lc The LinphoneCore object
3584  * @param devid the device name as returned by linphone_core_get_sound_devices()
3585 **/
3586 int linphone_core_set_playback_device(LinphoneCore *lc, const char * devid){
3587         MSSndCard *card=get_card_from_string_id(devid,MS_SND_CARD_CAP_PLAYBACK);
3588         lc->sound_conf.play_sndcard=card;
3589         if (card &&  linphone_core_ready(lc))
3590                 lp_config_set_string(lc->config,"sound","playback_dev_id",ms_snd_card_get_string_id(card));
3591         return 0;
3592 }
3593
3594 /**
3595  * Sets the sound device used for capture.
3596  *
3597  * @ingroup media_parameters
3598  * @param lc The LinphoneCore object
3599  * @param devid the device name as returned by linphone_core_get_sound_devices()
3600 **/
3601 int linphone_core_set_capture_device(LinphoneCore *lc, const char * devid){
3602         MSSndCard *card=get_card_from_string_id(devid,MS_SND_CARD_CAP_CAPTURE);
3603         lc->sound_conf.capt_sndcard=card;
3604         if (card &&  linphone_core_ready(lc))
3605                 lp_config_set_string(lc->config,"sound","capture_dev_id",ms_snd_card_get_string_id(card));
3606         return 0;
3607 }
3608
3609 /**
3610  * Returns the name of the currently assigned sound device for ringing.
3611  *
3612  * @ingroup media_parameters
3613  * @param lc The LinphoneCore object
3614 **/
3615 const char * linphone_core_get_ringer_device(LinphoneCore *lc)
3616 {
3617         if (lc->sound_conf.ring_sndcard) return ms_snd_card_get_string_id(lc->sound_conf.ring_sndcard);
3618         return NULL;
3619 }
3620
3621 /**
3622  * Returns the name of the currently assigned sound device for playback.
3623  *
3624  * @ingroup media_parameters
3625  * @param lc The LinphoneCore object
3626 **/
3627 const char * linphone_core_get_playback_device(LinphoneCore *lc)
3628 {
3629         return lc->sound_conf.play_sndcard ? ms_snd_card_get_string_id(lc->sound_conf.play_sndcard) : NULL;
3630 }
3631
3632 /**
3633  * Returns the name of the currently assigned sound device for capture.
3634  *
3635  * @ingroup media_parameters
3636  * @param lc The LinphoneCore object
3637 **/
3638 const char * linphone_core_get_capture_device(LinphoneCore *lc)
3639 {
3640         return lc->sound_conf.capt_sndcard ? ms_snd_card_get_string_id(lc->sound_conf.capt_sndcard) : NULL;
3641 }
3642
3643 /**
3644  * Returns an unmodifiable array of available sound devices.
3645  *
3646  * The array is NULL terminated.
3647  *
3648  * @ingroup media_parameters
3649  * @param lc The LinphoneCore object
3650 **/
3651 const char**  linphone_core_get_sound_devices(LinphoneCore *lc){
3652         return lc->sound_conf.cards;
3653 }
3654
3655 /**
3656  * Returns an unmodifiable array of available video capture devices.
3657  *
3658  * @ingroup media_parameters
3659  * The array is NULL terminated.
3660 **/
3661 const char**  linphone_core_get_video_devices(const LinphoneCore *lc){
3662         return lc->video_conf.cams;
3663 }
3664
3665 /**
3666  * Update detection of sound devices.
3667  *
3668  * Use this function when the application is notified of USB plug events, so that
3669  * list of available hardwares for sound playback and capture is updated.
3670  **/
3671 void linphone_core_reload_sound_devices(LinphoneCore *lc){
3672         const char *ringer,*playback,*capture;
3673         ringer=linphone_core_get_ringer_device(lc);
3674         playback=linphone_core_get_playback_device(lc);
3675         capture=linphone_core_get_capture_device(lc);
3676         ms_snd_card_manager_reload(ms_snd_card_manager_get());
3677         build_sound_devices_table(lc);
3678         linphone_core_set_ringer_device(lc,ringer);
3679         linphone_core_set_playback_device(lc,playback);
3680         linphone_core_set_capture_device(lc,capture);
3681 }
3682
3683 /**
3684  * Update detection of camera devices.
3685  *
3686  * Use this function when the application is notified of USB plug events, so that
3687  * list of available hardwares for video capture is updated.
3688  **/
3689 void linphone_core_reload_video_devices(LinphoneCore *lc){
3690         const char *devid;
3691         devid=linphone_core_get_video_device(lc);
3692         ms_web_cam_manager_reload(ms_web_cam_manager_get());
3693         build_video_devices_table(lc);
3694         linphone_core_set_video_device(lc,devid);
3695 }
3696
3697 char linphone_core_get_sound_source(LinphoneCore *lc)
3698 {
3699         return lc->sound_conf.source;
3700 }
3701
3702 void linphone_core_set_sound_source(LinphoneCore *lc, char source)
3703 {
3704         MSSndCard *sndcard=lc->sound_conf.capt_sndcard;
3705         lc->sound_conf.source=source;
3706         if (!sndcard) return;
3707         switch(source){
3708                 case 'm':
3709                         ms_snd_card_set_capture(sndcard,MS_SND_CARD_MIC);
3710                         break;
3711                 case 'l':
3712                         ms_snd_card_set_capture(sndcard,MS_SND_CARD_LINE);
3713                         break;
3714         }
3715
3716 }
3717
3718
3719 /**
3720  * Sets the path to a wav file used for ringing.
3721  *
3722  * @param path The file must be a wav 16bit linear. Local ring is disabled if null
3723  * @param lc The LinphoneCore object
3724  *
3725  * @ingroup media_parameters
3726 **/
3727 void linphone_core_set_ring(LinphoneCore *lc,const char *path){
3728         if (lc->sound_conf.local_ring!=0){
3729                 ms_free(lc->sound_conf.local_ring);
3730                 lc->sound_conf.local_ring=NULL;
3731         }
3732         if (path)
3733                 lc->sound_conf.local_ring=ms_strdup(path);
3734         if ( linphone_core_ready(lc) && lc->sound_conf.local_ring)
3735                 lp_config_set_string(lc->config,"sound","local_ring",lc->sound_conf.local_ring);
3736 }
3737
3738 /**
3739  * Returns the path to the wav file used for ringing.
3740  *
3741  * @param lc The LinphoneCore object
3742  * @ingroup media_parameters
3743 **/
3744 const char *linphone_core_get_ring(const LinphoneCore *lc){
3745         return lc->sound_conf.local_ring;
3746 }
3747
3748 /**
3749  * Sets the path to a file or folder containing trusted root CAs (PEM format)
3750  *
3751  * @param path
3752  * @param lc The LinphoneCore object
3753  *
3754  * @ingroup media_parameters
3755 **/
3756 void linphone_core_set_root_ca(LinphoneCore *lc,const char *path){
3757         sal_set_root_ca(lc->sal, path);
3758 }
3759
3760 /**
3761  * Gets the path to a file or folder containing trusted root CAs (PEM format)
3762  *
3763  * @param lc The LinphoneCore object
3764  *
3765  * @ingroup media_parameters
3766 **/
3767 const char *linphone_core_get_root_ca(LinphoneCore *lc){
3768         return sal_get_root_ca(lc->sal);
3769 }
3770
3771 /**
3772  * Specify whether the tls server certificate must be verified when connecting to a SIP/TLS server.
3773 **/
3774 void linphone_core_verify_server_certificates(LinphoneCore *lc, bool_t yesno){
3775         sal_verify_server_certificates(lc->sal,yesno);
3776 }
3777
3778 static void notify_end_of_ring(void *ud, MSFilter *f, unsigned int event, void *arg){
3779         LinphoneCore *lc=(LinphoneCore*)ud;
3780         lc->preview_finished=1;
3781 }
3782
3783 int linphone_core_preview_ring(LinphoneCore *lc, const char *ring,LinphoneCoreCbFunc func,void * userdata)
3784 {
3785         if (lc->ringstream!=0){
3786                 ms_warning("Cannot start ring now,there's already a ring being played");
3787                 return -1;
3788         }
3789         lc_callback_obj_init(&lc->preview_finished_cb,func,userdata);
3790         lc->preview_finished=0;
3791         if (lc->sound_conf.ring_sndcard!=NULL){
3792                 MSSndCard *ringcard=lc->sound_conf.lsd_card ? lc->sound_conf.lsd_card : lc->sound_conf.ring_sndcard;
3793                 lc->ringstream=ring_start_with_cb(ring,2000,ringcard,notify_end_of_ring,(void *)lc);
3794         }
3795         return 0;
3796 }
3797
3798 /**
3799  * Sets the path to a wav file used for ringing back.
3800  *
3801  * Ringback means the ring that is heard when it's ringing at the remote party.
3802  * The file must be a wav 16bit linear.
3803  *
3804  * @ingroup media_parameters
3805 **/
3806 void linphone_core_set_ringback(LinphoneCore *lc, const char *path){
3807         if (lc->sound_conf.remote_ring!=0){
3808                 ms_free(lc->sound_conf.remote_ring);
3809         }
3810         lc->sound_conf.remote_ring=ms_strdup(path);
3811 }
3812
3813 /**
3814  * Returns the path to the wav file used for ringing back.
3815  *
3816  * @ingroup media_parameters
3817 **/
3818 const char * linphone_core_get_ringback(const LinphoneCore *lc){
3819         return lc->sound_conf.remote_ring;
3820 }
3821
3822 /**
3823  * Enables or disable echo cancellation. Value is saved an used for subsequent calls
3824  *
3825  * @ingroup media_parameters
3826 **/
3827 void linphone_core_enable_echo_cancellation(LinphoneCore *lc, bool_t val){
3828         lc->sound_conf.ec=val;
3829         if ( linphone_core_ready(lc))
3830                 lp_config_set_int(lc->config,"sound","echocancellation",val);
3831 }
3832
3833
3834 /**
3835  * Returns TRUE if echo cancellation is enabled.
3836  *
3837  * @ingroup media_parameters
3838 **/
3839 bool_t linphone_core_echo_cancellation_enabled(LinphoneCore *lc){
3840         return lc->sound_conf.ec;
3841 }
3842
3843 void linphone_core_enable_echo_limiter(LinphoneCore *lc, bool_t val){
3844         lc->sound_conf.ea=val;
3845 }
3846
3847 bool_t linphone_core_echo_limiter_enabled(const LinphoneCore *lc){
3848         return lc->sound_conf.ea;
3849 }
3850
3851 /**
3852  * Mutes or unmutes the local microphone.
3853  *
3854  * @ingroup media_parameters
3855 **/
3856 void linphone_core_mute_mic(LinphoneCore *lc, bool_t val){
3857         LinphoneCall *call=linphone_core_get_current_call(lc);
3858         AudioStream *st=NULL;
3859         if (linphone_core_is_in_conference(lc)){
3860                 lc->conf_ctx.local_muted=val;
3861                 st=lc->conf_ctx.local_participant;
3862         }else if (call==NULL){
3863                 ms_warning("linphone_core_mute_mic(): No current call !");
3864                 return;
3865         }else{
3866                 st=call->audiostream;
3867                 call->audio_muted=val;
3868         }
3869         if (st!=NULL){
3870                 audio_stream_set_mic_gain(st,
3871                         (val==TRUE) ? 0 : pow(10,lc->sound_conf.soft_mic_lev/10));
3872                 if ( linphone_core_get_rtp_no_xmit_on_audio_mute(lc) ){
3873                         audio_stream_mute_rtp(st,val);
3874                 }
3875
3876         }
3877 }
3878 /**
3879  * Returns whether microphone is muted.
3880 **/
3881 bool_t linphone_core_is_mic_muted(LinphoneCore *lc) {
3882         LinphoneCall *call=linphone_core_get_current_call(lc);
3883         if (linphone_core_is_in_conference(lc)){
3884                 return lc->conf_ctx.local_muted;
3885         }else if (call==NULL){
3886                 ms_warning("linphone_core_is_mic_muted(): No current call !");
3887                 return FALSE;
3888         }
3889         return call->audio_muted;
3890 }
3891
3892 // returns rtp transmission status for an active stream
3893 // if audio is muted and config parameter rtp_no_xmit_on_audio_mute
3894 // was set on then rtp transmission is also muted
3895 bool_t linphone_core_is_rtp_muted(LinphoneCore *lc){
3896         LinphoneCall *call=linphone_core_get_current_call(lc);
3897         if (call==NULL){
3898                 ms_warning("linphone_core_is_mic_muted(): No current call !");
3899                 return FALSE;
3900         }
3901         if( linphone_core_get_rtp_no_xmit_on_audio_mute(lc)){
3902                 return call->audio_muted;
3903         }
3904         return FALSE;
3905 }
3906
3907 void linphone_core_enable_agc(LinphoneCore *lc, bool_t val){
3908         lc->sound_conf.agc=val;
3909 }
3910
3911 bool_t linphone_core_agc_enabled(const LinphoneCore *lc){
3912         return lc->sound_conf.agc;
3913 }
3914
3915 /**
3916  * Send the specified dtmf.
3917  *
3918  * @ingroup media_parameters
3919  * This function only works during calls. The dtmf is automatically played to the user.
3920  * @param lc The LinphoneCore object
3921  * @param dtmf The dtmf name specified as a char, such as '0', '#' etc...
3922  *
3923 **/
3924 void linphone_core_send_dtmf(LinphoneCore *lc, char dtmf)
3925 {
3926         LinphoneCall *call=linphone_core_get_current_call(lc);
3927         if (call==NULL){
3928                 ms_warning("linphone_core_send_dtmf(): no active call");
3929                 return;
3930         }
3931         /*By default we send DTMF RFC2833 if we do not have enabled SIP_INFO but we can also send RFC2833 and SIP_INFO*/
3932         if (linphone_core_get_use_rfc2833_for_dtmf(lc)!=0 || linphone_core_get_use_info_for_dtmf(lc)==0)
3933         {
3934                 /* In Band DTMF */
3935                 if (call->audiostream!=NULL){
3936                         audio_stream_send_dtmf(call->audiostream,dtmf);
3937                 }
3938                 else
3939                 {
3940                         ms_error("we cannot send RFC2833 dtmf when we are not in communication");
3941                 }
3942         }
3943         if (linphone_core_get_use_info_for_dtmf(lc)!=0){
3944                 /* Out of Band DTMF (use INFO method) */
3945                 sal_call_send_dtmf(call->op,dtmf);
3946         }
3947 }
3948
3949 void linphone_core_set_stun_server(LinphoneCore *lc, const char *server){
3950         if (lc->net_conf.stun_server!=NULL)
3951                 ms_free(lc->net_conf.stun_server);
3952         if (server)
3953                 lc->net_conf.stun_server=ms_strdup(server);
3954         else lc->net_conf.stun_server=NULL;
3955         if (linphone_core_ready(lc))
3956                 lp_config_set_string(lc->config,"net","stun_server",lc->net_conf.stun_server);
3957 }
3958
3959 const char * linphone_core_get_stun_server(const LinphoneCore *lc){
3960         return lc->net_conf.stun_server;
3961 }
3962
3963 const char * linphone_core_get_relay_addr(const LinphoneCore *lc){
3964         return lc->net_conf.relay;
3965 }
3966
3967 int linphone_core_set_relay_addr(LinphoneCore *lc, const char *addr){
3968         if (lc->net_conf.relay!=NULL){
3969                 ms_free(lc->net_conf.relay);
3970                 lc->net_conf.relay=NULL;
3971         }
3972         if (addr){
3973                 lc->net_conf.relay=ms_strdup(addr);
3974         }
3975         return 0;
3976 }
3977
3978 void linphone_core_set_nat_address(LinphoneCore *lc, const char *addr)
3979 {
3980         if (lc->net_conf.nat_address!=NULL){
3981                 ms_free(lc->net_conf.nat_address);
3982         }
3983         if (addr!=NULL) lc->net_conf.nat_address=ms_strdup(addr);
3984         else lc->net_conf.nat_address=NULL;
3985         if (lc->sip_conf.contact) update_primary_contact(lc);
3986 }
3987
3988 const char *linphone_core_get_nat_address(const LinphoneCore *lc) {
3989         return lc->net_conf.nat_address;
3990 }
3991
3992 const char *linphone_core_get_nat_address_resolved(LinphoneCore *lc)
3993 {
3994         struct sockaddr_storage ss;
3995         socklen_t ss_len;
3996         int error;
3997         char ipstring [INET6_ADDRSTRLEN];
3998
3999         if (lc->net_conf.nat_address==NULL) return NULL;
4000
4001         if (parse_hostname_to_addr (lc->net_conf.nat_address, &ss, &ss_len)<0) {
4002                 return lc->net_conf.nat_address;
4003         }
4004
4005         error = getnameinfo((struct sockaddr *)&ss, ss_len,
4006                 ipstring, sizeof(ipstring), NULL, 0, NI_NUMERICHOST);
4007         if (error) {
4008                 return lc->net_conf.nat_address;
4009         }
4010
4011         if (lc->net_conf.nat_address_ip!=NULL){
4012                 ms_free(lc->net_conf.nat_address_ip);
4013         }
4014         lc->net_conf.nat_address_ip = ms_strdup (ipstring);
4015         return lc->net_conf.nat_address_ip;
4016 }
4017
4018 void linphone_core_set_firewall_policy(LinphoneCore *lc, LinphoneFirewallPolicy pol){
4019         lc->net_conf.firewall_policy=pol;
4020         if (lc->sip_conf.contact) update_primary_contact(lc);
4021         if (linphone_core_ready(lc))
4022                 lp_config_set_int(lc->config,"net","firewall_policy",pol);
4023 }
4024
4025 LinphoneFirewallPolicy linphone_core_get_firewall_policy(const LinphoneCore *lc){
4026         return lc->net_conf.firewall_policy;
4027 }
4028
4029 /**
4030  * Get the list of call logs (past calls).
4031  *
4032  * @ingroup call_logs
4033 **/
4034 const MSList * linphone_core_get_call_logs(LinphoneCore *lc){
4035         return lc->call_logs;
4036 }
4037
4038 /**
4039  * Erase the call log.
4040  *
4041  * @ingroup call_logs
4042 **/
4043 void linphone_core_clear_call_logs(LinphoneCore *lc){
4044         lc->missed_calls=0;
4045         ms_list_for_each(lc->call_logs,(void (*)(void*))linphone_call_log_destroy);
4046         lc->call_logs=ms_list_free(lc->call_logs);
4047         call_logs_write_to_config_file(lc);
4048 }
4049
4050 /**
4051  * Returns number of missed calls.
4052  * Once checked, this counter can be reset with linphone_core_reset_missed_calls_count().
4053 **/
4054 int linphone_core_get_missed_calls_count(LinphoneCore *lc) {
4055         return lc->missed_calls;
4056 }
4057
4058 /**
4059  * Resets the counter of missed calls.
4060 **/
4061 void linphone_core_reset_missed_calls_count(LinphoneCore *lc) {
4062         lc->missed_calls=0;
4063 }
4064
4065 /**
4066  * Remove a specific call log from call history list.
4067  * This function destroys the call log object. It must not be accessed anymore by the application after calling this function.
4068  * @param lc the linphone core object
4069  * @param a LinphoneCallLog object.
4070 **/
4071 void linphone_core_remove_call_log(LinphoneCore *lc, LinphoneCallLog *cl){
4072         lc->call_logs = ms_list_remove(lc->call_logs, cl);
4073         call_logs_write_to_config_file(lc);
4074         linphone_call_log_destroy(cl);
4075 }
4076
4077 static void toggle_video_preview(LinphoneCore *lc, bool_t val){
4078 #ifdef VIDEO_ENABLED
4079         if (val){
4080                 if (lc->previewstream==NULL){
4081                         lc->previewstream=video_preview_new();
4082                         video_preview_set_size(lc->previewstream,lc->video_conf.vsize);
4083                         if (lc->video_conf.displaytype)
4084                                 video_preview_set_display_filter_name(lc->previewstream,lc->video_conf.displaytype);
4085                         if (lc->preview_window_id!=0)
4086                                 video_preview_set_native_window_id(lc->previewstream,lc->preview_window_id);
4087                         video_preview_start(lc->previewstream,lc->video_conf.device);
4088                 }
4089         }else{
4090                 if (lc->previewstream!=NULL){
4091                         video_preview_stop(lc->previewstream);
4092                         lc->previewstream=NULL;
4093                 }
4094         }
4095 #endif
4096 }
4097
4098 /**
4099  * Enables video globally.
4100  *
4101  * @ingroup media_parameters
4102  * This function does not have any effect during calls. It just indicates LinphoneCore to
4103  * initiate future calls with video or not. The two boolean parameters indicate in which
4104  * direction video is enabled. Setting both to false disables video entirely.
4105  *
4106  * @param lc The LinphoneCore object
4107  * @param vcap_enabled indicates whether video capture is enabled
4108  * @param display_enabled indicates whether video display should be shown
4109  *
4110 **/
4111 void linphone_core_enable_video(LinphoneCore *lc, bool_t vcap_enabled, bool_t display_enabled){
4112 #ifndef VIDEO_ENABLED
4113         if (vcap_enabled || display_enabled)
4114                 ms_warning("This version of linphone was built without video support.");
4115 #endif
4116         lc->video_conf.capture=vcap_enabled;
4117         lc->video_conf.display=display_enabled;
4118         if (linphone_core_ready(lc)){
4119                 lp_config_set_int(lc->config,"video","display",lc->video_conf.display);
4120                 lp_config_set_int(lc->config,"video","capture",lc->video_conf.capture);
4121         }
4122         /* need to re-apply network bandwidth settings*/
4123         linphone_core_set_download_bandwidth(lc,
4124                 linphone_core_get_download_bandwidth(lc));
4125         linphone_core_set_upload_bandwidth(lc,
4126                 linphone_core_get_upload_bandwidth(lc));
4127 }
4128
4129 bool_t linphone_core_video_supported(LinphoneCore *lc){
4130 #ifdef VIDEO_ENABLED
4131         return TRUE;
4132 #else
4133         return FALSE;
4134 #endif
4135 }
4136
4137 /**
4138  * Returns TRUE if video is enabled, FALSE otherwise.
4139  * @ingroup media_parameters
4140 **/
4141 bool_t linphone_core_video_enabled(LinphoneCore *lc){
4142         return (lc->video_conf.display || lc->video_conf.capture);
4143 }
4144
4145 /**
4146  * Sets the default policy for video.
4147  * This policy defines whether:
4148  * - video shall be initiated by default for outgoing calls
4149  * - video shall be accepter by default for incoming calls
4150  * @ingroup media_parameters
4151 **/
4152 void linphone_core_set_video_policy(LinphoneCore *lc, const LinphoneVideoPolicy *policy){
4153         lc->video_policy=*policy;
4154         if (linphone_core_ready(lc)){
4155                 lp_config_set_int(lc->config,"video","automatically_initiate",policy->automatically_initiate);
4156                 lp_config_set_int(lc->config,"video","automatically_accept",policy->automatically_accept);
4157         }
4158 }
4159
4160 /**
4161  * Get the default policy for video.
4162  * See linphone_core_set_video_policy() for more details.
4163  * @ingroup media_parameters
4164 **/
4165 const LinphoneVideoPolicy *linphone_core_get_video_policy(LinphoneCore *lc){
4166         return &lc->video_policy;
4167 }
4168
4169 /**
4170  * Controls video preview enablement.
4171  *
4172  * @ingroup media_parameters
4173  * Video preview refers to the action of displaying the local webcam image
4174  * to the user while not in call.
4175 **/
4176 void linphone_core_enable_video_preview(LinphoneCore *lc, bool_t val){
4177         lc->video_conf.show_local=val;
4178         if (linphone_core_ready(lc))
4179                 lp_config_set_int(lc->config,"video","show_local",val);
4180 }
4181
4182 /**
4183  * Returns TRUE if video previewing is enabled.
4184  * @ingroup media_parameters
4185 **/
4186 bool_t linphone_core_video_preview_enabled(const LinphoneCore *lc){
4187         return lc->video_conf.show_local;
4188 }
4189
4190 /**
4191  * Enables or disable self view during calls.
4192  *
4193  * @ingroup media_parameters
4194  * Self-view refers to having local webcam image inserted in corner
4195  * of the video window during calls.
4196  * This function works at any time, including during calls.
4197 **/
4198 void linphone_core_enable_self_view(LinphoneCore *lc, bool_t val){
4199 #ifdef VIDEO_ENABLED
4200         LinphoneCall *call=linphone_core_get_current_call (lc);
4201         lc->video_conf.selfview=val;
4202         if (call && call->videostream){
4203                 video_stream_enable_self_view(call->videostream,val);
4204         }
4205         if (linphone_core_ready(lc)){
4206                 lp_config_set_int(lc->config,"video","self_view",val);
4207         }
4208 #endif
4209 }
4210
4211 /**
4212  * Returns TRUE if self-view is enabled, FALSE otherwise.
4213  *
4214  * @ingroup media_parameters
4215  *
4216  * Refer to linphone_core_enable_self_view() for details.
4217 **/
4218 bool_t linphone_core_self_view_enabled(const LinphoneCore *lc){
4219         return lc->video_conf.selfview;
4220 }
4221
4222 /**
4223  * Sets the active video device.
4224  *
4225  * @ingroup media_parameters
4226  * @param lc The LinphoneCore object
4227  * @param id the name of the video device as returned by linphone_core_get_video_devices()
4228 **/
4229 int linphone_core_set_video_device(LinphoneCore *lc, const char *id){
4230         MSWebCam *olddev=lc->video_conf.device;
4231         const char *vd;
4232         if (id!=NULL){
4233                 lc->video_conf.device=ms_web_cam_manager_get_cam(ms_web_cam_manager_get(),id);
4234                 if (lc->video_conf.device==NULL){
4235                         ms_warning("Could not find video device %s",id);
4236                 }
4237         }
4238         if (lc->video_conf.device==NULL)
4239                 lc->video_conf.device=ms_web_cam_manager_get_default_cam(ms_web_cam_manager_get());
4240         if (olddev!=NULL && olddev!=lc->video_conf.device){
4241                 toggle_video_preview(lc,FALSE);/*restart the video local preview*/
4242         }
4243         if ( linphone_core_ready(lc) && lc->video_conf.device){
4244                 vd=ms_web_cam_get_string_id(lc->video_conf.device);
4245                 if (vd && strstr(vd,"Static picture")!=NULL){
4246                         vd=NULL;
4247                 }
4248                 lp_config_set_string(lc->config,"video","device",vd);
4249         }
4250         return 0;
4251 }
4252
4253 /**
4254  * Returns the name of the currently active video device.
4255  *
4256  * @param lc The LinphoneCore object
4257  * @ingroup media_parameters
4258 **/
4259 const char *linphone_core_get_video_device(const LinphoneCore *lc){
4260         if (lc->video_conf.device) return ms_web_cam_get_string_id(lc->video_conf.device);
4261         return NULL;
4262 }
4263
4264 #ifdef VIDEO_ENABLED
4265 static VideoStream * get_active_video_stream(LinphoneCore *lc){
4266         VideoStream *vs = NULL;
4267         LinphoneCall *call=linphone_core_get_current_call (lc);
4268         /* Select the video stream from the call in the first place */
4269         if (call && call->videostream) {
4270                 vs = call->videostream;
4271         }
4272         /* If not in call, select the video stream from the preview */
4273         if (vs == NULL && lc->previewstream) {
4274                 vs = lc->previewstream;
4275         }
4276         return vs;
4277 }
4278 #endif
4279
4280 int linphone_core_set_static_picture(LinphoneCore *lc, const char *path) {
4281 #ifdef VIDEO_ENABLED
4282         VideoStream *vs=get_active_video_stream(lc);
4283         /* If we have a video stream (either preview, either from call), we
4284                  have a source and it is using the static picture filter, then
4285                  force the filter to use that picture. */
4286         if (vs && vs->source) {
4287                 if (ms_filter_get_id(vs->source) == MS_STATIC_IMAGE_ID) {
4288                         ms_filter_call_method(vs->source, MS_STATIC_IMAGE_SET_IMAGE,
4289                                                                                                                 (void *)path);
4290                 }
4291         }
4292         /* Tell the static image filter to use that image from now on so
4293                  that the image will be used next time it has to be read */
4294         ms_static_image_set_default_image(path);
4295 #else
4296         ms_warning("Video support not compiled.");
4297 #endif
4298         return 0;
4299 }
4300
4301 const char *linphone_core_get_static_picture(LinphoneCore *lc) {
4302         const char *path=NULL;
4303 #ifdef VIDEO_ENABLED
4304         path=ms_static_image_get_default_image();
4305 #else
4306         ms_warning("Video support not compiled.");
4307 #endif
4308         return path;
4309 }
4310
4311 int linphone_core_set_static_picture_fps(LinphoneCore *lc, float fps) {
4312 #ifdef VIDEO_ENABLED
4313         VideoStream *vs = NULL;
4314
4315         vs=get_active_video_stream(lc);
4316
4317         /* If we have a video stream (either preview, either from call), we
4318                  have a source and it is using the static picture filter, then
4319                  force the filter to use that picture. */
4320         if (vs && vs->source) {
4321                 if (ms_filter_get_id(vs->source) == MS_STATIC_IMAGE_ID) {
4322                         ms_filter_call_method(vs->source, MS_FILTER_SET_FPS,(void *)&fps);
4323                 }
4324         }
4325 #else
4326         ms_warning("Video support not compiled.");
4327 #endif
4328         return 0;
4329 }
4330
4331 float linphone_core_get_static_picture_fps(LinphoneCore *lc) {
4332 #ifdef VIDEO_ENABLED
4333         VideoStream *vs = NULL;
4334         vs=get_active_video_stream(lc);
4335         /* If we have a video stream (either preview, either from call), we
4336                  have a source and it is using the static picture filter, then
4337                  force the filter to use that picture. */
4338         if (vs && vs->source) {
4339                 if (ms_filter_get_id(vs->source) == MS_STATIC_IMAGE_ID) {
4340
4341                         float fps;
4342
4343                         ms_filter_call_method(vs->source, MS_FILTER_GET_FPS,(void *)&fps);
4344                         return fps;
4345                 }
4346         }
4347 #else
4348         ms_warning("Video support not compiled.");
4349 #endif
4350         return 0;
4351 }
4352
4353 /**
4354  * Returns the native window handle of the video window, casted as an unsigned long.
4355  *
4356  * @ingroup media_parameters
4357 **/
4358 unsigned long linphone_core_get_native_video_window_id(const LinphoneCore *lc){
4359 #ifdef VIDEO_ENABLED
4360         LinphoneCall *call=linphone_core_get_current_call (lc);
4361         if (call && call->videostream)
4362                 return video_stream_get_native_window_id(call->videostream);
4363         if (lc->previewstream)
4364                 return video_stream_get_native_window_id(lc->previewstream);
4365 #endif
4366         return lc->video_window_id;
4367 }
4368
4369 /**@ingroup media_parameters
4370  * Set the native video window id where the video is to be displayed.
4371  * If not set the core will create its own window.
4372 **/
4373 void linphone_core_set_native_video_window_id(LinphoneCore *lc, unsigned long id){
4374 #ifdef VIDEO_ENABLED
4375         LinphoneCall *call=linphone_core_get_current_call(lc);
4376         lc->video_window_id=id;
4377         if (call!=NULL && call->videostream){
4378                 video_stream_set_native_window_id(call->videostream,id);
4379         }
4380 #endif
4381 }
4382
4383 /**
4384  * Returns the native window handle of the video preview window, casted as an unsigned long.
4385  *
4386  * @ingroup media_parameters
4387 **/
4388 unsigned long linphone_core_get_native_preview_window_id(const LinphoneCore *lc){
4389 #ifdef VIDEO_ENABLED
4390         LinphoneCall *call=linphone_core_get_current_call (lc);
4391         if (call && call->videostream)
4392                 return video_stream_get_native_preview_window_id(call->videostream);
4393         if (lc->previewstream)
4394                 return video_preview_get_native_window_id(lc->previewstream);
4395 #endif
4396         return lc->preview_window_id;
4397 }
4398
4399 /**
4400  * @ingroup media_parameters
4401  * Set the native window id where the preview video (local camera) is to be displayed.
4402  * This has to be used in conjonction with linphone_core_use_preview_window().
4403  * If not set the core will create its own window.
4404 **/
4405 void linphone_core_set_native_preview_window_id(LinphoneCore *lc, unsigned long id){
4406         lc->preview_window_id=id;
4407 #ifdef VIDEO_ENABLED
4408         LinphoneCall *call=linphone_core_get_current_call(lc);
4409         if (call!=NULL && call->videostream){
4410                 video_stream_set_native_preview_window_id(call->videostream,id);
4411         }else if (lc->previewstream){
4412                 video_preview_set_native_window_id(lc->previewstream,id);
4413         }
4414 #endif
4415 }
4416
4417 /**
4418  * Can be used to disable video showing to free XV port
4419 **/
4420 void linphone_core_show_video(LinphoneCore *lc, bool_t show){
4421 #ifdef VIDEO_ENABLED
4422         ms_error("linphone_core_show_video %d", show);
4423         LinphoneCall *call=linphone_core_get_current_call(lc);
4424         if (call!=NULL && call->videostream){
4425                 video_stream_show_video(call->videostream,show);
4426         }
4427 #endif
4428 }
4429
4430 /**
4431  * Tells the core to use a separate window for local camera preview video, instead of
4432  * inserting local view within the remote video window.
4433  *
4434 **/
4435 void linphone_core_use_preview_window(LinphoneCore *lc, bool_t yesno){
4436         lc->use_preview_window=yesno;
4437 }
4438 /**
4439  * @ingroup media_parameters
4440  *returns current device orientation
4441  */
4442 int linphone_core_get_device_rotation(LinphoneCore *lc ) {
4443         return lc->device_rotation;
4444 }
4445 /**
4446  * @ingroup media_parameters
4447  * Tells the core the device current orientation. This can be used by capture filters
4448  * on mobile devices to select between portrait/landscape mode and to produce properly
4449  * oriented images. The exact meaning of the value in rotation if left to each device
4450  * specific implementations.
4451  *@param lc  object.
4452  *@param rotation . IOS supported values are 0 for UIInterfaceOrientationPortrait and 270 for UIInterfaceOrientationLandscapeRight.
4453  *
4454 **/
4455 void linphone_core_set_device_rotation(LinphoneCore *lc, int rotation) {
4456 ms_message("%s : rotation=%d\n", __FUNCTION__, rotation);
4457         lc->device_rotation = rotation;
4458 #ifdef VIDEO_ENABLED
4459         LinphoneCall *call=linphone_core_get_current_call(lc);
4460         if (call!=NULL && call->videostream){
4461                 video_stream_set_device_rotation(call->videostream,rotation);
4462         }
4463 #endif
4464 }
4465
4466 static MSVideoSizeDef supported_resolutions[]={
4467 #ifdef ENABLE_HD
4468         {       {MS_VIDEO_SIZE_1080P_W,MS_VIDEO_SIZE_1080P_H}   ,       "1080p" },
4469         {       {MS_VIDEO_SIZE_720P_W,MS_VIDEO_SIZE_720P_H}     ,       "1080p" },
4470 #endif
4471         {       {MS_VIDEO_SIZE_SVGA_W,MS_VIDEO_SIZE_SVGA_H}     ,       "svga"  },
4472         {       {MS_VIDEO_SIZE_4CIF_W,MS_VIDEO_SIZE_4CIF_H}     ,       "4cif"  },
4473         {       {MS_VIDEO_SIZE_VGA_W,MS_VIDEO_SIZE_VGA_H}       ,       "vga"   },
4474         {       {MS_VIDEO_SIZE_IOS_MEDIUM_H,MS_VIDEO_SIZE_IOS_MEDIUM_W} ,       "ios-medium"    },
4475         {       {MS_VIDEO_SIZE_CIF_W,MS_VIDEO_SIZE_CIF_H}       ,       "cif"   },
4476         {       {MS_VIDEO_SIZE_QVGA_W,MS_VIDEO_SIZE_QVGA_H}     ,       "qvga"  },
4477         {       {MS_VIDEO_SIZE_QCIF_W,MS_VIDEO_SIZE_QCIF_H}     ,       "qcif"  },
4478         {       {0,0}                   ,       NULL    }
4479 };
4480
4481 /**
4482  * Returns the zero terminated table of supported video resolutions.
4483  *
4484  * @ingroup media_parameters
4485 **/
4486 const MSVideoSizeDef *linphone_core_get_supported_video_sizes(LinphoneCore *lc){
4487         return supported_resolutions;
4488 }
4489
4490 static MSVideoSize video_size_get_by_name(const char *name){
4491         MSVideoSizeDef *pdef=supported_resolutions;
4492         MSVideoSize null_vsize={0,0};
4493         for(;pdef->name!=NULL;pdef++){
4494                 if (strcasecmp(name,pdef->name)==0){
4495                         return pdef->vsize;
4496                 }
4497         }
4498         ms_warning("Video resolution %s is not supported in linphone.",name);
4499         return null_vsize;
4500 }
4501
4502 static const char *video_size_get_name(MSVideoSize vsize){
4503         MSVideoSizeDef *pdef=supported_resolutions;
4504         for(;pdef->name!=NULL;pdef++){
4505                 if (pdef->vsize.width==vsize.width && pdef->vsize.height==vsize.height){
4506                         return pdef->name;
4507                 }
4508         }
4509         return NULL;
4510 }
4511
4512 static bool_t video_size_supported(MSVideoSize vsize){
4513         if (video_size_get_name(vsize)) return TRUE;
4514         ms_warning("Video resolution %ix%i is not supported in linphone.",vsize.width,vsize.height);
4515         return FALSE;
4516 }
4517
4518 /**
4519  * Sets the preferred video size.
4520  *
4521  * @ingroup media_parameters
4522  * This applies only to the stream that is captured and sent to the remote party,
4523  * since we accept all standard video size on the receive path.
4524 **/
4525 void linphone_core_set_preferred_video_size(LinphoneCore *lc, MSVideoSize vsize){
4526         if (video_size_supported(vsize)){
4527                 MSVideoSize oldvsize=lc->video_conf.vsize;
4528                 lc->video_conf.vsize=vsize;
4529                 if (!ms_video_size_equal(oldvsize,vsize) && lc->previewstream!=NULL){
4530                         toggle_video_preview(lc,FALSE);
4531                         toggle_video_preview(lc,TRUE);
4532                 }
4533                 if ( linphone_core_ready(lc))
4534                         lp_config_set_string(lc->config,"video","size",video_size_get_name(vsize));
4535         }
4536 }
4537
4538 /**
4539  * Sets the preferred video size by its name.
4540  *
4541  * @ingroup media_parameters
4542  * This is identical to linphone_core_set_preferred_video_size() except
4543  * that it takes the name of the video resolution as input.
4544  * Video resolution names are: qcif, svga, cif, vga, 4cif, svga ...
4545 **/
4546 void linphone_core_set_preferred_video_size_by_name(LinphoneCore *lc, const char *name){
4547         MSVideoSize vsize=video_size_get_by_name(name);
4548         MSVideoSize default_vsize={MS_VIDEO_SIZE_CIF_W,MS_VIDEO_SIZE_CIF_H};
4549         if (vsize.width!=0)     linphone_core_set_preferred_video_size(lc,vsize);
4550         else linphone_core_set_preferred_video_size(lc,default_vsize);
4551 }
4552
4553 /**
4554  * Returns the current preferred video size for sending.
4555  *
4556  * @ingroup media_parameters
4557 **/
4558 MSVideoSize linphone_core_get_preferred_video_size(LinphoneCore *lc){
4559         return lc->video_conf.vsize;
4560 }
4561
4562 /**
4563  * Ask the core to stream audio from and to files, instead of using the soundcard.
4564 **/
4565 void linphone_core_use_files(LinphoneCore *lc, bool_t yesno){
4566         lc->use_files=yesno;
4567 }
4568
4569 /**
4570  * Sets a wav file to be played when putting somebody on hold,
4571  * or when files are used instead of soundcards (see linphone_core_use_files()).
4572  *
4573  * The file must be a 16 bit linear wav file.
4574 **/
4575 void linphone_core_set_play_file(LinphoneCore *lc, const char *file){
4576         LinphoneCall *call=linphone_core_get_current_call(lc);
4577         if (lc->play_file!=NULL){
4578                 ms_free(lc->play_file);
4579                 lc->play_file=NULL;
4580         }
4581         if (file!=NULL) {
4582                 lc->play_file=ms_strdup(file);
4583                 if (call && call->audiostream && call->audiostream->ticker)
4584                         audio_stream_play(call->audiostream,file);
4585         }
4586 }
4587
4588
4589 /**
4590  * Sets a wav file where incoming stream is to be recorded,
4591  * when files are used instead of soundcards (see linphone_core_use_files()).
4592  *
4593  * The file must be a 16 bit linear wav file.
4594 **/
4595 void linphone_core_set_record_file(LinphoneCore *lc, const char *file){
4596         LinphoneCall *call=linphone_core_get_current_call(lc);
4597         if (lc->rec_file!=NULL){
4598                 ms_free(lc->rec_file);
4599                 lc->rec_file=NULL;
4600         }
4601         if (file!=NULL) {
4602                 lc->rec_file=ms_strdup(file);
4603                 if (call && call->audiostream)
4604                         audio_stream_record(call->audiostream,file);
4605         }
4606 }
4607
4608
4609 static MSFilter *get_dtmf_gen(LinphoneCore *lc){
4610         LinphoneCall *call=linphone_core_get_current_call (lc);
4611         AudioStream *stream=NULL;
4612         if (call){
4613                 stream=call->audiostream;
4614         }else if (linphone_core_is_in_conference(lc)){
4615                 stream=lc->conf_ctx.local_participant;
4616         }
4617         if (stream){
4618                 return stream->dtmfgen;
4619         }
4620         if (lc->ringstream==NULL){
4621                 float amp=lp_config_get_float(lc->config,"sound","dtmf_player_amp",0.1);
4622                 MSSndCard *ringcard=lc->sound_conf.lsd_card ?lc->sound_conf.lsd_card : lc->sound_conf.ring_sndcard;
4623                 if (ringcard == NULL)
4624                         return NULL;
4625
4626                 lc->ringstream=ring_start(NULL,0,ringcard);
4627                 ms_filter_call_method(lc->ringstream->gendtmf,MS_DTMF_GEN_SET_DEFAULT_AMPLITUDE,&amp);
4628                 lc->dmfs_playing_start_time=time(NULL);
4629         }else{
4630                 if (lc->dmfs_playing_start_time!=0)
4631                         lc->dmfs_playing_start_time=time(NULL);
4632         }
4633         return lc->ringstream->gendtmf;
4634 }
4635
4636 /**
4637  * @ingroup media_parameters
4638  * Plays a dtmf sound to the local user.
4639  * @param lc #LinphoneCore
4640  * @param dtmf DTMF to play ['0'..'16'] | '#' | '#'
4641  * @param duration_ms duration in ms, -1 means play until next further call to #linphone_core_stop_dtmf()
4642 **/
4643 void linphone_core_play_dtmf(LinphoneCore *lc, char dtmf, int duration_ms){
4644         MSFilter *f=get_dtmf_gen(lc);
4645         if (f==NULL){
4646                 ms_error("No dtmf generator at this time !");
4647                 return;
4648         }
4649
4650         if (duration_ms>0)
4651                 ms_filter_call_method(f, MS_DTMF_GEN_PLAY, &dtmf);
4652         else ms_filter_call_method(f, MS_DTMF_GEN_START, &dtmf);
4653 }
4654
4655 /**
4656  * @ingroup media_parameters
4657  * Plays a repeated tone to the local user until next further call to #linphone_core_stop_dtmf()
4658  * @param lc #LinphoneCore
4659 **/
4660 void linphone_core_play_tone(LinphoneCore *lc){
4661         MSFilter *f=get_dtmf_gen(lc);
4662         MSDtmfGenCustomTone def;
4663         if (f==NULL){
4664                 ms_error("No dtmf generator at this time !");
4665                 return;
4666         }
4667         def.duration=300;
4668         def.frequency=500;
4669         def.amplitude=1;
4670         def.interval=2000;
4671         ms_filter_call_method(f, MS_DTMF_GEN_PLAY_CUSTOM,&def);
4672 }
4673
4674 /**
4675  * @ingroup media_parameters
4676  *
4677  * Stops playing a dtmf started by linphone_core_play_dtmf().
4678 **/
4679 void linphone_core_stop_dtmf(LinphoneCore *lc){
4680         MSFilter *f=get_dtmf_gen(lc);
4681         if (f!=NULL)
4682                 ms_filter_call_method_noarg (f, MS_DTMF_GEN_STOP);
4683 }
4684
4685
4686
4687 /**
4688  * Retrieves the user pointer that was given to linphone_core_new()
4689  *
4690  * @ingroup initializing
4691 **/
4692 void *linphone_core_get_user_data(LinphoneCore *lc){
4693         return lc->data;
4694 }
4695
4696 void linphone_core_set_user_data(LinphoneCore *lc, void *userdata){
4697         lc->data=userdata;
4698 }
4699
4700 int linphone_core_get_mtu(const LinphoneCore *lc){
4701         return lc->net_conf.mtu;
4702 }
4703
4704 void linphone_core_set_mtu(LinphoneCore *lc, int mtu){
4705         lc->net_conf.mtu=mtu;
4706         if (mtu>0){
4707                 if (mtu<500){
4708                         ms_error("MTU too small !");
4709                         mtu=500;
4710                 }
4711                 ms_set_mtu(mtu);
4712                 ms_message("MTU is supposed to be %i, rtp payload max size will be %i",mtu, ms_get_payload_max_size());
4713         }else ms_set_mtu(0);//use mediastreamer2 default value
4714 }
4715
4716 void linphone_core_set_waiting_callback(LinphoneCore *lc, LinphoneWaitingCallback cb, void *user_context){
4717         lc->wait_cb=cb;
4718         lc->wait_ctx=user_context;
4719 }
4720
4721 void linphone_core_start_waiting(LinphoneCore *lc, const char *purpose){
4722         if (lc->wait_cb){
4723                 lc->wait_ctx=lc->wait_cb(lc,lc->wait_ctx,LinphoneWaitingStart,purpose,0);
4724         }
4725 }
4726
4727 void linphone_core_update_progress(LinphoneCore *lc, const char *purpose, float progress){
4728         if (lc->wait_cb){
4729                 lc->wait_ctx=lc->wait_cb(lc,lc->wait_ctx,LinphoneWaitingProgress,purpose,progress);
4730         }else{
4731 #ifdef WIN32
4732                 Sleep(50000);
4733 #else
4734                 usleep(50000);
4735 #endif
4736         }
4737 }
4738
4739 void linphone_core_stop_waiting(LinphoneCore *lc){
4740         if (lc->wait_cb){
4741                 lc->wait_ctx=lc->wait_cb(lc,lc->wait_ctx,LinphoneWaitingFinished,NULL,0);
4742         }
4743 }
4744
4745 void linphone_core_set_rtp_transport_factories(LinphoneCore* lc, LinphoneRtpTransportFactories *factories){
4746         lc->rtptf=factories;
4747 }
4748
4749 /**
4750  * Retrieve RTP statistics regarding current call.
4751  * @param local RTP statistics computed locally.
4752  * @param remote RTP statistics computed by far end (obtained via RTCP feedback).
4753  *
4754  * @note Remote RTP statistics is not implemented yet.
4755  *
4756  * @returns 0 or -1 if no call is running.
4757 **/
4758
4759 int linphone_core_get_current_call_stats(LinphoneCore *lc, rtp_stats_t *local, rtp_stats_t *remote){
4760         LinphoneCall *call=linphone_core_get_current_call (lc);
4761         if (call!=NULL){
4762                 if (call->audiostream!=NULL){
4763                         memset(remote,0,sizeof(*remote));
4764                         audio_stream_get_local_rtp_stats (call->audiostream,local);
4765                         return 0;
4766                 }
4767         }
4768         return -1;
4769 }
4770
4771 void net_config_uninit(LinphoneCore *lc)
4772 {
4773         net_config_t *config=&lc->net_conf;
4774
4775         if (config->stun_server!=NULL){
4776                 ms_free(lc->net_conf.stun_server);
4777         }
4778         if (config->nat_address!=NULL){
4779                 lp_config_set_string(lc->config,"net","nat_address",config->nat_address);
4780                 ms_free(lc->net_conf.nat_address);
4781         }
4782         if (lc->net_conf.nat_address_ip !=NULL){
4783                 ms_free(lc->net_conf.nat_address_ip);
4784         }
4785         lp_config_set_int(lc->config,"net","mtu",config->mtu);
4786 }
4787
4788
4789 void sip_config_uninit(LinphoneCore *lc)
4790 {
4791         MSList *elem;
4792         int i;
4793         sip_config_t *config=&lc->sip_conf;
4794
4795         lp_config_set_int(lc->config,"sip","guess_hostname",config->guess_hostname);
4796         lp_config_set_string(lc->config,"sip","contact",config->contact);
4797         lp_config_set_int(lc->config,"sip","inc_timeout",config->inc_timeout);
4798         lp_config_set_int(lc->config,"sip","in_call_timeout",config->in_call_timeout);
4799         lp_config_set_int(lc->config,"sip","use_info",config->use_info);
4800         lp_config_set_int(lc->config,"sip","use_rfc2833",config->use_rfc2833);
4801         lp_config_set_int(lc->config,"sip","use_ipv6",config->ipv6_enabled);
4802         lp_config_set_int(lc->config,"sip","register_only_when_network_is_up",config->register_only_when_network_is_up);
4803
4804
4805
4806
4807         for(elem=config->proxies,i=0;elem!=NULL;elem=ms_list_next(elem),i++){
4808                 LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)(elem->data);
4809                 linphone_proxy_config_edit(cfg);        /* to unregister */
4810         }
4811
4812         for (i=0;i<20;i++){
4813                 sal_iterate(lc->sal);
4814 #ifndef WIN32
4815                 usleep(100000);
4816 #else
4817                 Sleep(100);
4818 #endif
4819         }
4820
4821         ms_list_for_each(config->proxies,(void (*)(void*)) linphone_proxy_config_destroy);
4822         ms_list_free(config->proxies);
4823         config->proxies=NULL;
4824
4825         linphone_proxy_config_write_to_config_file(lc->config,NULL,i);  /*mark the end */
4826
4827         ms_list_for_each(lc->auth_info,(void (*)(void*))linphone_auth_info_destroy);
4828         ms_list_free(lc->auth_info);
4829         lc->auth_info=NULL;
4830
4831         sal_uninit(lc->sal);
4832         lc->sal=NULL;
4833
4834         if (lc->sip_conf.guessed_contact)
4835                 ms_free(lc->sip_conf.guessed_contact);
4836         if (config->contact)
4837                 ms_free(config->contact);
4838
4839 }
4840
4841 void rtp_config_uninit(LinphoneCore *lc)
4842 {
4843         rtp_config_t *config=&lc->rtp_conf;
4844         if (config->audio_rtp_min_port == config->audio_rtp_max_port) {
4845                 lp_config_set_int(lc->config, "rtp", "audio_rtp_port", config->audio_rtp_min_port);
4846         } else {
4847                 lp_config_set_range(lc->config, "rtp", "audio_rtp_port", config->audio_rtp_min_port, config->audio_rtp_max_port);
4848         }
4849         if (config->video_rtp_min_port == config->video_rtp_max_port) {
4850                 lp_config_set_int(lc->config, "rtp", "video_rtp_port", config->video_rtp_min_port);
4851         } else {
4852                 lp_config_set_range(lc->config, "rtp", "video_rtp_port", config->video_rtp_min_port, config->video_rtp_max_port);
4853         }
4854         lp_config_set_int(lc->config,"rtp","audio_jitt_comp",config->audio_jitt_comp);
4855         lp_config_set_int(lc->config,"rtp","video_jitt_comp",config->video_jitt_comp);
4856         lp_config_set_int(lc->config,"rtp","nortp_timeout",config->nortp_timeout);
4857         lp_config_set_int(lc->config,"rtp","audio_jitt_comp_enabled",config->audio_adaptive_jitt_comp_enabled);
4858         lp_config_set_int(lc->config,"rtp","video_jitt_comp_enabled",config->video_adaptive_jitt_comp_enabled);
4859 }
4860
4861 static void sound_config_uninit(LinphoneCore *lc)
4862 {
4863         sound_config_t *config=&lc->sound_conf;
4864         ms_free(config->cards);
4865
4866         lp_config_set_string(lc->config,"sound","remote_ring",config->remote_ring);
4867         lp_config_set_float(lc->config,"sound","playback_gain_db",config->soft_play_lev);
4868         lp_config_set_float(lc->config,"sound","mic_gain_db",config->soft_mic_lev);
4869
4870         if (config->local_ring) ms_free(config->local_ring);
4871         if (config->remote_ring) ms_free(config->remote_ring);
4872         ms_snd_card_manager_destroy();
4873 }
4874
4875 static void video_config_uninit(LinphoneCore *lc)
4876 {
4877         lp_config_set_string(lc->config,"video","size",video_size_get_name(linphone_core_get_preferred_video_size(lc)));
4878         lp_config_set_int(lc->config,"video","display",lc->video_conf.display);
4879         lp_config_set_int(lc->config,"video","capture",lc->video_conf.capture);
4880         if (lc->video_conf.cams)
4881                 ms_free(lc->video_conf.cams);
4882 }
4883
4884 void _linphone_core_codec_config_write(LinphoneCore *lc){
4885         if (linphone_core_ready(lc)){
4886                 PayloadType *pt;
4887                 codecs_config_t *config=&lc->codecs_conf;
4888                 MSList *node;
4889                 char key[50];
4890                 int index;
4891                 index=0;
4892                 for(node=config->audio_codecs;node!=NULL;node=ms_list_next(node)){
4893                         pt=(PayloadType*)(node->data);
4894                         sprintf(key,"audio_codec_%i",index);
4895                         lp_config_set_string(lc->config,key,"mime",pt->mime_type);
4896                         lp_config_set_int(lc->config,key,"rate",pt->clock_rate);
4897                         lp_config_set_int(lc->config,key,"channels",pt->channels);
4898                         lp_config_set_int(lc->config,key,"enabled",linphone_core_payload_type_enabled(lc,pt));
4899                         index++;
4900                 }
4901                 sprintf(key,"audio_codec_%i",index);
4902                 lp_config_clean_section (lc->config,key);
4903
4904                 index=0;
4905                 for(node=config->video_codecs;node!=NULL;node=ms_list_next(node)){
4906                         pt=(PayloadType*)(node->data);
4907                         sprintf(key,"video_codec_%i",index);
4908                         lp_config_set_string(lc->config,key,"mime",pt->mime_type);
4909                         lp_config_set_int(lc->config,key,"rate",pt->clock_rate);
4910                         lp_config_set_int(lc->config,key,"enabled",linphone_core_payload_type_enabled(lc,pt));
4911                         lp_config_set_string(lc->config,key,"recv_fmtp",pt->recv_fmtp);
4912                         index++;
4913                 }
4914                 sprintf(key,"video_codec_%i",index);
4915                 lp_config_clean_section (lc->config,key);
4916         }
4917 }
4918
4919 static void codecs_config_uninit(LinphoneCore *lc)
4920 {
4921         _linphone_core_codec_config_write(lc);
4922         ms_list_free(lc->codecs_conf.audio_codecs);
4923         ms_list_free(lc->codecs_conf.video_codecs);
4924 }
4925
4926 void ui_config_uninit(LinphoneCore* lc)
4927 {
4928         if (lc->friends){
4929                 ms_list_for_each(lc->friends,(void (*)(void *))linphone_friend_destroy);
4930                 ms_list_free(lc->friends);
4931                 lc->friends=NULL;
4932         }
4933 }
4934
4935 /**
4936  * Returns the LpConfig object used to manage the storage (config) file.
4937  *
4938  * @ingroup misc
4939  * The application can use the LpConfig object to insert its own private
4940  * sections and pairs of key=value in the configuration file.
4941  *
4942 **/
4943 LpConfig *linphone_core_get_config(LinphoneCore *lc){
4944         return lc->config;
4945 }
4946
4947 static void linphone_core_uninit(LinphoneCore *lc)
4948 {
4949         linphone_core_free_hooks(lc);
4950         while(lc->calls)
4951         {
4952                 LinphoneCall *the_call = lc->calls->data;
4953                 linphone_core_terminate_call(lc,the_call);
4954                 linphone_core_iterate(lc);
4955 #ifdef WIN32
4956                 Sleep(50000);
4957 #else
4958                 usleep(50000);
4959 #endif
4960         }
4961         if (lc->friends)
4962                 ms_list_for_each(lc->friends,(void (*)(void *))linphone_friend_close_subscriptions);
4963         linphone_core_set_state(lc,LinphoneGlobalShutdown,"Shutting down");
4964 #ifdef VIDEO_ENABLED
4965         if (lc->previewstream!=NULL){
4966                 video_preview_stop(lc->previewstream);
4967                 lc->previewstream=NULL;
4968         }
4969 #endif
4970         ms_event_queue_destroy(lc->msevq);
4971         lc->msevq=NULL;
4972         /* save all config */
4973         net_config_uninit(lc);
4974         rtp_config_uninit(lc);
4975         if (lc->ringstream) ring_stop(lc->ringstream);
4976         sound_config_uninit(lc);
4977         video_config_uninit(lc);
4978         codecs_config_uninit(lc);
4979         ui_config_uninit(lc);
4980         sip_config_uninit(lc);
4981         if (lp_config_needs_commit(lc->config)) lp_config_sync(lc->config);
4982         lp_config_destroy(lc->config);
4983         lc->config = NULL; /* Mark the config as NULL to block further calls */
4984         sip_setup_unregister_all();
4985
4986 #ifdef BUILD_UPNP
4987         upnp_context_uninit(lc);
4988 #endif  //BUILD_UPNP
4989
4990         ms_list_for_each(lc->call_logs,(void (*)(void*))linphone_call_log_destroy);
4991         lc->call_logs=ms_list_free(lc->call_logs);
4992
4993         ms_list_for_each(lc->last_recv_msg_ids,ms_free);
4994         lc->last_recv_msg_ids=ms_list_free(lc->last_recv_msg_ids);
4995
4996         linphone_core_free_payload_types(lc);
4997         ortp_exit();
4998         linphone_core_set_state(lc,LinphoneGlobalOff,"Off");
4999 #ifdef TUNNEL_ENABLED
5000         if (lc->tunnel) linphone_tunnel_destroy(lc->tunnel);
5001 #endif
5002 }
5003
5004 static void set_network_reachable(LinphoneCore* lc,bool_t isReachable, time_t curtime){
5005         ms_message("Network state is now [%s]",isReachable?"UP":"DOWN");
5006         // second get the list of available proxies
5007         const MSList *elem=linphone_core_get_proxy_config_list(lc);
5008         for(;elem!=NULL;elem=elem->next){
5009                 LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)elem->data;
5010                 if (linphone_proxy_config_register_enabled(cfg) ) {
5011                         if (!isReachable) {
5012                                 linphone_proxy_config_set_state(cfg, LinphoneRegistrationNone,"Registration impossible (network down)");
5013                         }else{
5014                                 cfg->commit=TRUE;
5015                         }
5016                 }
5017         }
5018         lc->netup_time=curtime;
5019         lc->network_reachable=isReachable;
5020         if(!isReachable) {
5021                 sal_reset_transports(lc->sal);
5022         }
5023 }
5024
5025 void linphone_core_refresh_registers(LinphoneCore* lc) {
5026         const MSList *elem;
5027         if (!lc->network_reachable) {
5028                 ms_warning("Refresh register operation not available (network unreachable)");
5029                 return;
5030         }
5031         elem=linphone_core_get_proxy_config_list(lc);
5032         for(;elem!=NULL;elem=elem->next){
5033                 LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)elem->data;
5034                 if (linphone_proxy_config_register_enabled(cfg) && linphone_proxy_config_get_expires(cfg)>0) {
5035                         linphone_proxy_config_refresh_register(cfg);
5036                 }
5037         }
5038 }
5039
5040 void __linphone_core_invalidate_registers(LinphoneCore* lc){
5041         const MSList *elem=linphone_core_get_proxy_config_list(lc);
5042         for(;elem!=NULL;elem=elem->next){
5043                 LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)elem->data;
5044                 if (linphone_proxy_config_register_enabled(cfg)) {
5045                         linphone_proxy_config_edit(cfg);
5046                         linphone_proxy_config_done(cfg);
5047                 }
5048         }
5049 }
5050
5051 void linphone_core_set_network_reachable(LinphoneCore* lc,bool_t isReachable) {
5052         //first disable automatic mode
5053         if (lc->auto_net_state_mon) {
5054                 ms_message("Disabling automatic network state monitoring");
5055                 lc->auto_net_state_mon=FALSE;
5056         }
5057         set_network_reachable(lc,isReachable, ms_time(NULL));
5058 }
5059
5060 bool_t linphone_core_is_network_reachable(LinphoneCore* lc) {
5061         return lc->network_reachable;
5062 }
5063 ortp_socket_t linphone_core_get_sip_socket(LinphoneCore *lc){
5064         return sal_get_socket(lc->sal);
5065 }
5066 /**
5067  * Destroys a LinphoneCore
5068  *
5069  * @ingroup initializing
5070 **/
5071 void linphone_core_destroy(LinphoneCore *lc){
5072         linphone_core_uninit(lc);
5073         ms_free(lc);
5074 }
5075 /**
5076  * Get the number of Call
5077  *
5078  * @ingroup call_control
5079 **/
5080 int linphone_core_get_calls_nb(const LinphoneCore *lc){
5081         return  ms_list_size(lc->calls);;
5082 }
5083
5084 /**
5085  * Check if we do not have exceed the number of simultaneous call
5086  *
5087  * @ingroup call_control
5088 **/
5089 bool_t linphone_core_can_we_add_call(LinphoneCore *lc)
5090 {
5091         if(linphone_core_get_calls_nb(lc) < lc->max_calls)
5092                 return TRUE;
5093         ms_message("Maximum amount of simultaneous calls reached !");
5094         return FALSE;
5095 }
5096
5097
5098 int linphone_core_add_call( LinphoneCore *lc, LinphoneCall *call)
5099 {
5100         if(linphone_core_can_we_add_call(lc))
5101         {
5102                 lc->calls = ms_list_append(lc->calls,call);
5103                 return 0;
5104         }
5105         return -1;
5106 }
5107
5108 int linphone_core_del_call( LinphoneCore *lc, LinphoneCall *call)
5109 {
5110         MSList *it;
5111         MSList *the_calls = lc->calls;
5112
5113         it=ms_list_find(the_calls,call);
5114         if (it)
5115         {
5116                 the_calls = ms_list_remove_link(the_calls,it);
5117         }
5118         else
5119         {
5120                 ms_warning("could not find the call into the list\n");
5121                 return -1;
5122         }
5123         lc->calls = the_calls;
5124         return 0;
5125 }
5126
5127 /**
5128  * Specifiies a ring back tone to be played to far end during incoming calls.
5129 **/
5130 void linphone_core_set_remote_ringback_tone(LinphoneCore *lc, const char *file){
5131         if (lc->sound_conf.ringback_tone){
5132                 ms_free(lc->sound_conf.ringback_tone);
5133                 lc->sound_conf.ringback_tone=NULL;
5134         }
5135         if (file)
5136                 lc->sound_conf.ringback_tone=ms_strdup(file);
5137 }
5138
5139 /**
5140  * Returns the ring back tone played to far end during incoming calls.
5141 **/
5142 const char *linphone_core_get_remote_ringback_tone(const LinphoneCore *lc){
5143         return lc->sound_conf.ringback_tone;
5144 }
5145
5146 static PayloadType* find_payload_type_from_list(const char* type, int rate, int channels, const MSList* from) {
5147         const MSList *elem;
5148         for(elem=from;elem!=NULL;elem=elem->next){
5149                 PayloadType *pt=(PayloadType*)elem->data;
5150                 if ((strcasecmp((char*)type, payload_type_get_mime(pt)) == 0)
5151                         && (rate == LINPHONE_FIND_PAYLOAD_IGNORE_RATE || rate==pt->clock_rate)
5152                         && (channels == LINPHONE_FIND_PAYLOAD_IGNORE_CHANNELS || channels==pt->channels)) {
5153                         return pt;
5154                 }
5155         }
5156         return NULL;
5157 }
5158
5159
5160 PayloadType* linphone_core_find_payload_type(LinphoneCore* lc, const char* type, int rate, int channels) {
5161         PayloadType* result = find_payload_type_from_list(type, rate, channels, linphone_core_get_audio_codecs(lc));
5162         if (result)  {
5163                 return result;
5164         } else {
5165                 result = find_payload_type_from_list(type, rate, 0, linphone_core_get_video_codecs(lc));
5166                 if (result) {
5167                         return result;
5168                 }
5169         }
5170         /*not found*/
5171         return NULL;
5172 }
5173
5174 const char *linphone_global_state_to_string(LinphoneGlobalState gs){
5175         switch(gs){
5176                 case LinphoneGlobalOff:
5177                         return "LinphoneGlobalOff";
5178                 break;
5179                 case LinphoneGlobalOn:
5180                         return "LinphoneGlobalOn";
5181                 break;
5182                 case LinphoneGlobalStartup:
5183                         return "LinphoneGlobalStartup";
5184                 break;
5185                 case LinphoneGlobalShutdown:
5186                         return "LinphoneGlobalShutdown";
5187                 break;
5188         }
5189         return NULL;
5190 }
5191
5192 LinphoneGlobalState linphone_core_get_global_state(const LinphoneCore *lc){
5193         return lc->state;
5194 }
5195
5196 LinphoneCallParams *linphone_core_create_default_call_parameters(LinphoneCore *lc){
5197         LinphoneCallParams *p=ms_new0(LinphoneCallParams,1);
5198         linphone_core_init_default_params(lc, p);
5199         return p;
5200 }
5201
5202 const char *linphone_reason_to_string(LinphoneReason err){
5203         switch(err){
5204                 case LinphoneReasonNone:
5205                         return "No error";
5206                 case LinphoneReasonNoResponse:
5207                         return "No response";
5208                 case LinphoneReasonBadCredentials:
5209                         return "Bad credentials";
5210                 case LinphoneReasonDeclined:
5211                         return "Call declined";
5212                 case LinphoneReasonNotFound:
5213                         return "User not found";
5214                 case LinphoneReasonNotAnswered:
5215                         return "Not answered";
5216                 case LinphoneReasonBusy:
5217                         return "Busy";
5218         }
5219         return "unknown error";
5220 }
5221
5222 const char *linphone_error_to_string(LinphoneReason err){
5223         return linphone_reason_to_string(err);
5224 }
5225 /**
5226  * Enables signaling keep alive
5227  */
5228 void linphone_core_enable_keep_alive(LinphoneCore* lc,bool_t enable) {
5229         if (enable > 0) {
5230                 sal_set_keepalive_period(lc->sal,lc->sip_conf.keepalive_period);
5231         } else {
5232                 sal_set_keepalive_period(lc->sal,0);
5233         }
5234 }
5235 /**
5236  * Is signaling keep alive enabled
5237  */
5238 bool_t linphone_core_keep_alive_enabled(LinphoneCore* lc) {
5239         return sal_get_keepalive_period(lc->sal) > 0;
5240 }
5241
5242 void linphone_core_start_dtmf_stream(LinphoneCore* lc) {
5243         get_dtmf_gen(lc); /*make sure ring stream is started*/
5244         lc->ringstream_autorelease=FALSE; /*disable autorelease mode*/
5245 }
5246
5247 void linphone_core_stop_dtmf_stream(LinphoneCore* lc) {
5248         if (lc->ringstream && lc->dmfs_playing_start_time!=0) {
5249                 ring_stop(lc->ringstream);
5250                 lc->ringstream=NULL;
5251         }
5252 }
5253
5254 int linphone_core_get_max_calls(LinphoneCore *lc) {
5255         return lc->max_calls;
5256 }
5257 void linphone_core_set_max_calls(LinphoneCore *lc, int max) {
5258         lc->max_calls=max;
5259 }
5260
5261 typedef struct Hook{
5262         LinphoneCoreIterateHook fun;
5263         void *data;
5264 }Hook;
5265
5266 static Hook *hook_new(LinphoneCoreIterateHook hook, void *hook_data){
5267         Hook *h=ms_new(Hook,1);
5268         h->fun=hook;
5269         h->data=hook_data;
5270         return h;
5271 }
5272
5273 static void hook_invoke(Hook *h){
5274         h->fun(h->data);
5275 }
5276
5277 void linphone_core_add_iterate_hook(LinphoneCore *lc, LinphoneCoreIterateHook hook, void *hook_data){
5278         lc->hooks=ms_list_append(lc->hooks,hook_new(hook,hook_data));
5279 }
5280
5281 static void linphone_core_run_hooks(LinphoneCore *lc){
5282         ms_list_for_each(lc->hooks,(void (*)(void*))hook_invoke);
5283 }
5284
5285 static void linphone_core_free_hooks(LinphoneCore *lc){
5286         ms_list_for_each(lc->hooks,(void (*)(void*))ms_free);
5287         ms_list_free(lc->hooks);
5288         lc->hooks=NULL;
5289 }
5290
5291 void linphone_core_remove_iterate_hook(LinphoneCore *lc, LinphoneCoreIterateHook hook, void *hook_data){
5292         MSList *elem;
5293         for(elem=lc->hooks;elem!=NULL;elem=elem->next){
5294                 Hook *h=(Hook*)elem->data;
5295                 if (h->fun==hook && h->data==hook_data){
5296                         ms_list_remove_link(lc->hooks,elem);
5297                         ms_free(h);
5298                         return;
5299                 }
5300         }
5301         ms_error("linphone_core_remove_iterate_hook(): No such hook found.");
5302 }
5303
5304 void linphone_core_set_zrtp_secrets_file(LinphoneCore *lc, const char* file){
5305         if (lc->zrtp_secrets_cache != NULL) {
5306                 ms_free(lc->zrtp_secrets_cache);
5307         }
5308         lc->zrtp_secrets_cache=file ? ms_strdup(file) : NULL;
5309 }
5310
5311 const char *linphone_core_get_zrtp_secrets_file(LinphoneCore *lc){
5312         return lc->zrtp_secrets_cache;
5313 }
5314
5315 const LinphoneCall* linphone_core_find_call_from_uri(LinphoneCore *lc, const char *uri) {
5316         if (uri == NULL) return NULL;
5317         MSList *calls=lc->calls;
5318         while(calls) {
5319                 const LinphoneCall *c=(LinphoneCall*)calls->data;
5320                 calls=calls->next;
5321                 const LinphoneAddress *address = linphone_call_get_remote_address(c);
5322                 char *current_uri=linphone_address_as_string_uri_only(address);
5323                 if (strcmp(uri,current_uri)==0) {
5324                         ms_free(current_uri);
5325                         return c;
5326                 } else {
5327                         ms_free(current_uri);
5328                 }
5329         }
5330         return NULL;
5331 }
5332
5333
5334 /**
5335  * Check if a call will need the sound resources.
5336  *
5337  * @ingroup call_control
5338  * @param lc The LinphoneCore
5339 **/
5340 bool_t linphone_core_sound_resources_locked(LinphoneCore *lc){
5341         MSList *calls=lc->calls;
5342         while(calls) {
5343                 LinphoneCall *c=(LinphoneCall*)calls->data;
5344                 calls=calls->next;
5345                 switch (c->state) {
5346                         case LinphoneCallOutgoingInit:
5347                         case LinphoneCallOutgoingProgress:
5348                         case LinphoneCallOutgoingRinging:
5349                         case LinphoneCallOutgoingEarlyMedia:
5350                         case LinphoneCallConnected:
5351                         case LinphoneCallRefered:
5352                         case LinphoneCallIncomingEarlyMedia:
5353                         case LinphoneCallUpdating:
5354                                 return TRUE;
5355                         default:
5356                                 break;
5357                 }
5358         }
5359         return FALSE;
5360 }
5361
5362 void linphone_core_set_srtp_enabled(LinphoneCore *lc, bool_t enabled) {
5363         lp_config_set_int(lc->config,"sip","srtp",(int)enabled);
5364 }
5365
5366 /**
5367  * Returns whether a media encryption scheme is supported by the LinphoneCore engine
5368 **/
5369 bool_t linphone_core_media_encryption_supported(const LinphoneCore *lc, LinphoneMediaEncryption menc){
5370         switch(menc){
5371                 case LinphoneMediaEncryptionSRTP:
5372                         return ortp_srtp_supported();
5373                 case LinphoneMediaEncryptionZRTP:
5374                         return ortp_zrtp_available();
5375                 case LinphoneMediaEncryptionNone:
5376                         return TRUE;
5377         }
5378         return FALSE;
5379 }
5380
5381 int linphone_core_set_media_encryption(LinphoneCore *lc, enum LinphoneMediaEncryption menc) {
5382         const char *type="none";
5383         int ret=0;
5384         if (menc == LinphoneMediaEncryptionSRTP){
5385                 if (!ortp_srtp_supported()){
5386                         ms_warning("SRTP not supported by library.");
5387                         type="none";
5388                         ret=-1;
5389                 }else type="srtp";
5390         }else if (menc == LinphoneMediaEncryptionZRTP){
5391                 if (!ortp_zrtp_available()){
5392                         ms_warning("ZRTP not supported by library.");
5393                         type="none";
5394                         ret=-1;
5395                 }else type="zrtp";
5396         }
5397         lp_config_set_string(lc->config,"sip","media_encryption",type);
5398         return ret;
5399 }
5400
5401 LinphoneMediaEncryption linphone_core_get_media_encryption(LinphoneCore *lc) {
5402         const char* menc = lp_config_get_string(lc->config, "sip", "media_encryption", NULL);
5403
5404         if (menc == NULL)
5405                 return LinphoneMediaEncryptionNone;
5406         else if (strcmp(menc, "srtp")==0)
5407                 return LinphoneMediaEncryptionSRTP;
5408         else if (strcmp(menc, "zrtp")==0)
5409                 return LinphoneMediaEncryptionZRTP;
5410         else
5411                 return LinphoneMediaEncryptionNone;
5412 }
5413
5414 bool_t linphone_core_is_media_encryption_mandatory(LinphoneCore *lc) {
5415         return (bool_t)lp_config_get_int(lc->config, "sip", "media_encryption_mandatory", 0);
5416 }
5417
5418 void linphone_core_set_media_encryption_mandatory(LinphoneCore *lc, bool_t m) {
5419         lp_config_set_int(lc->config, "sip", "media_encryption_mandatory", (int)m);
5420 }
5421
5422 void linphone_core_init_default_params(LinphoneCore*lc, LinphoneCallParams *params) {
5423         params->has_video=linphone_core_video_enabled(lc) && lc->video_policy.automatically_initiate;
5424         params->media_encryption=linphone_core_get_media_encryption(lc);
5425         params->in_conference=FALSE;
5426 }
5427
5428
5429
5430 void linphone_core_set_device_identifier(LinphoneCore *lc,const char* device_id) {
5431         if (lc->device_id) ms_free(lc->device_id);
5432         lc->device_id=ms_strdup(device_id);
5433 }
5434 const char*  linphone_core_get_device_identifier(const LinphoneCore *lc) {
5435         return lc->device_id;
5436 }
5437
5438 /**
5439  * Set the DSCP field for SIP signaling channel.
5440  *
5441  * @ingroup network_parameters
5442  * * The DSCP defines the quality of service in IP packets.
5443  *
5444 **/
5445 void linphone_core_set_sip_dscp(LinphoneCore *lc, int dscp){
5446         sal_set_dscp(lc->sal,dscp);
5447         if (linphone_core_ready(lc)){
5448                 lp_config_set_int_hex(lc->config,"sip","dscp",dscp);
5449                 apply_transports(lc);
5450         }
5451 }
5452
5453 /**
5454  * Get the DSCP field for SIP signaling channel.
5455  *
5456  * @ingroup network_parameters
5457  * * The DSCP defines the quality of service in IP packets.
5458  *
5459 **/
5460 int linphone_core_get_sip_dscp(const LinphoneCore *lc){
5461         return lp_config_get_int(lc->config,"sip","dscp",0x1a);
5462 }
5463
5464 /**
5465  * Set the DSCP field for outgoing audio streams.
5466  *
5467  * @ingroup network_parameters
5468  * The DSCP defines the quality of service in IP packets.
5469  *
5470 **/
5471 void linphone_core_set_audio_dscp(LinphoneCore *lc, int dscp){
5472         if (linphone_core_ready(lc))
5473                 lp_config_set_int_hex(lc->config,"rtp","audio_dscp",dscp);
5474 }
5475
5476 /**
5477  * Get the DSCP field for outgoing audio streams.
5478  *
5479  * @ingroup network_parameters
5480  * The DSCP defines the quality of service in IP packets.
5481  *
5482 **/
5483 int linphone_core_get_audio_dscp(const LinphoneCore *lc){
5484         return lp_config_get_int(lc->config,"rtp","audio_dscp",0x2e);
5485 }
5486
5487 /**
5488  * Set the DSCP field for outgoing video streams.
5489  *
5490  * @ingroup network_parameters
5491  * The DSCP defines the quality of service in IP packets.
5492  *
5493 **/
5494 void linphone_core_set_video_dscp(LinphoneCore *lc, int dscp){
5495         if (linphone_core_ready(lc))
5496                 lp_config_set_int_hex(lc->config,"rtp","video_dscp",dscp);
5497
5498 }
5499
5500 /**
5501  * Get the DSCP field for outgoing video streams.
5502  *
5503  * @ingroup network_parameters
5504  * The DSCP defines the quality of service in IP packets.
5505  *
5506 **/
5507 int linphone_core_get_video_dscp(const LinphoneCore *lc){
5508         return lp_config_get_int(lc->config,"rtp","video_dscp",0x2e);
5509 }