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