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