4 Copyright (C) 2000 Simon MORLAT (simon.morlat@linphone.org)
6 This program is free software; you can redistribute it and/or
7 modify it under the terms of the GNU General Public License
8 as published by the Free Software Foundation; either version 2
9 of the License, or (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
23 #include "mediastreamer2/mediastream.h"
26 #ifdef HAVE_SIGHANDLER_T
28 #endif /*HAVE_SIGHANDLER_T*/
31 #if !defined(_WIN32_WCE)
33 #include <sys/types.h>
40 #include <ortp/stun.h>
42 #ifdef HAVE_GETIFADDRS
50 static char lock_name[80];
51 static char lock_set=0;
52 /* put a lock file in /tmp. this is called when linphone runs as a daemon*/
57 snprintf(lock_name,80,"/tmp/linphone.%i",getuid());
58 lockfile=fopen(lock_name,"w");
61 printf("Failed to create lock file.\n");
64 fprintf(lockfile,"%i",getpid());
70 /* looks if there is a lock file. If presents return its content (the pid of the already running linphone), if not found, returns -1*/
76 snprintf(lock_name,80,"/tmp/linphone.%i",getuid());
77 lockfile=fopen(lock_name,"r");
80 if (fscanf(lockfile,"%i",&pid)!=1){
81 ms_warning("Could not read pid in lock file.");
89 /* remove the lock file if it was set*/
90 int remove_lock_file()
95 err=unlink(lock_name);
103 char *int2str(int number)
105 char *numstr=ms_malloc(10);
106 snprintf(numstr,10,"%i",number);
110 void check_sound_device(LinphoneCore *lc)
117 char *i810_audio=NULL;
118 char *snd_pcm_oss=NULL;
119 char *snd_mixer_oss=NULL;
121 fd=open("/proc/modules",O_RDONLY);
124 /* read the entire /proc/modules file and check if sound conf seems correct */
125 /*a=fstat(fd,&statbuf);
126 if (a<0) ms_warning("Can't stat /proc/modules:%s.",strerror(errno));
128 if (len==0) ms_warning("/proc/modules has zero size!");
130 /***** fstat does not work on /proc/modules for unknown reason *****/
132 file=ms_malloc(len+1);
134 if (a<len) file=ms_realloc(file,a+1);
136 i810_audio=strstr(file,"i810_audio");
137 if (i810_audio!=NULL){
138 /* I'm sorry i put this warning in comments because
139 * i don't use yet the right driver !! */
140 /* lc->vtable.display_warning(lc,_("You are currently using the i810_audio driver.\nThis driver is buggy and so does not work with Linphone.\nWe suggest that you replace it by its equivalent ALSA driver,\neither with packages from your distribution, or by downloading\nALSA drivers at http://www.alsa-project.org."));*/
143 snd_pcm=strstr(file,"snd-pcm");
145 snd_pcm_oss=strstr(file,"snd-pcm-oss");
146 snd_mixer_oss=strstr(file,"snd-mixer-oss");
147 if (snd_pcm_oss==NULL){
148 lc->vtable.display_warning(lc,_("Your computer appears to be using ALSA sound drivers.\nThis is the best choice. However the pcm oss emulation module\nis missing and linphone needs it. Please execute\n'modprobe snd-pcm-oss' as root to load it."));
150 if (snd_mixer_oss==NULL){
151 lc->vtable.display_warning(lc,_("Your computer appears to be using ALSA sound drivers.\nThis is the best choice. However the mixer oss emulation module\nis missing and linphone needs it. Please execute\n 'modprobe snd-mixer-oss' as root to load it."));
156 ms_warning("Could not open /proc/modules.");
158 /* now check general volume. Some user forget to rise it and then complain that linphone is
160 /* but some other users complain that linphone should not change levels...
161 if (lc->sound_conf.sndcard!=NULL){
162 a=snd_card_get_level(lc->sound_conf.sndcard,SND_CARD_LEVEL_GENERAL);
164 ms_warning("General level is quite low (%i). Linphone rises it up for you.",a);
165 snd_card_set_level(lc->sound_conf.sndcard,SND_CARD_LEVEL_GENERAL,80);
170 if (file!=NULL) ms_free(file);
176 #define RTP_HDR_SZ 12
177 #define IP4_HDR_SZ 20 /*20 is the minimum, but there may be some options*/
179 static void payload_type_set_enable(PayloadType *pt,int value)
181 if ((value)!=0) payload_type_set_flag(pt,PAYLOAD_TYPE_ENABLED); \
182 else payload_type_unset_flag(pt,PAYLOAD_TYPE_ENABLED);
185 static bool_t payload_type_enabled(const PayloadType *pt) {
186 return (((pt)->flags & PAYLOAD_TYPE_ENABLED)!=0);
189 bool_t linphone_core_payload_type_enabled(LinphoneCore *lc, const PayloadType *pt){
190 if (ms_list_find(lc->codecs_conf.audio_codecs, (PayloadType*) pt) || ms_list_find(lc->codecs_conf.video_codecs, (PayloadType*)pt)){
191 return payload_type_enabled(pt);
193 ms_error("Getting enablement status of codec not in audio or video list of PayloadType !");
197 int linphone_core_enable_payload_type(LinphoneCore *lc, PayloadType *pt, bool_t enabled){
198 if (ms_list_find(lc->codecs_conf.audio_codecs,pt) || ms_list_find(lc->codecs_conf.video_codecs,pt)){
199 payload_type_set_enable(pt,enabled);
200 _linphone_core_codec_config_write(lc);
203 ms_error("Enabling codec not in audio or video list of PayloadType !");
207 int linphone_core_get_payload_type_number(LinphoneCore *lc, const PayloadType *pt){
208 return payload_type_get_number(pt);
211 const char *linphone_core_get_payload_type_description(LinphoneCore *lc, PayloadType *pt){
212 if (ms_filter_codec_supported(pt->mime_type)){
213 MSFilterDesc *desc=ms_filter_get_encoder(pt->mime_type);
215 return dgettext("mediastreamer",desc->text);
224 /*this function makes a special case for speex/8000.
225 This codec is variable bitrate. The 8kbit/s mode is interesting when having a low upload bandwidth, but its quality
226 is not very good. We 'd better use its 15kbt/s mode when we have enough bandwidth*/
227 static int get_codec_bitrate(LinphoneCore *lc, const PayloadType *pt){
228 int upload_bw=linphone_core_get_upload_bandwidth(lc);
229 if (bandwidth_is_greater(upload_bw,129) || (bandwidth_is_greater(upload_bw,33) && !linphone_core_video_enabled(lc)) ) {
230 if (strcmp(pt->mime_type,"speex")==0 && pt->clock_rate==8000){
234 return pt->normal_bitrate;
237 static double get_audio_payload_bandwidth(LinphoneCore *lc, const PayloadType *pt){
241 bitrate=get_codec_bitrate(lc,pt);
242 packet_size= (((double)bitrate)/(50*8))+UDP_HDR_SZ+RTP_HDR_SZ+IP4_HDR_SZ;
243 return packet_size*8.0*npacket;
246 void linphone_core_update_allocated_audio_bandwidth_in_call(LinphoneCall *call, const PayloadType *pt){
247 call->audio_bw=(int)(get_audio_payload_bandwidth(call->core,pt)/1000.0);
248 ms_message("Audio bandwidth for this call is %i",call->audio_bw);
251 void linphone_core_update_allocated_audio_bandwidth(LinphoneCore *lc){
253 PayloadType *max=NULL;
254 for(elem=linphone_core_get_audio_codecs(lc);elem!=NULL;elem=elem->next){
255 PayloadType *pt=(PayloadType*)elem->data;
256 if (payload_type_enabled(pt)){
257 int pt_bitrate=get_codec_bitrate(lc,pt);
258 if (max==NULL) max=pt;
259 else if (max->normal_bitrate<pt_bitrate){
265 lc->audio_bw=(int)(get_audio_payload_bandwidth(lc,max)/1000.0);
269 bool_t linphone_core_is_payload_type_usable_for_bandwidth(LinphoneCore *lc, PayloadType *pt, int bandwidth_limit)
275 case PAYLOAD_AUDIO_CONTINUOUS:
276 case PAYLOAD_AUDIO_PACKETIZED:
277 codec_band=get_audio_payload_bandwidth(lc,pt);
278 ret=bandwidth_is_greater(bandwidth_limit*1000,codec_band);
279 /*hack to avoid using uwb codecs when having low bitrate and video*/
280 if (bandwidth_is_greater(199,bandwidth_limit)){
281 if (linphone_core_video_enabled(lc) && pt->clock_rate>16000){
285 //ms_message("Payload %s: %g",pt->mime_type,codec_band);
288 if (bandwidth_limit!=0) {/* infinite (-1) or strictly positive*/
297 /* return TRUE if codec can be used with bandwidth, FALSE else*/
298 bool_t linphone_core_check_payload_type_usability(LinphoneCore *lc, PayloadType *pt)
301 int allowed_bw,video_bw;
304 linphone_core_update_allocated_audio_bandwidth(lc);
305 allowed_bw=get_min_bandwidth(linphone_core_get_download_bandwidth(lc),
306 linphone_core_get_upload_bandwidth(lc));
309 video_bw=1500; /*around 1.5 Mbit/s*/
311 video_bw=get_video_bandwidth(allowed_bw,lc->audio_bw);
314 case PAYLOAD_AUDIO_CONTINUOUS:
315 case PAYLOAD_AUDIO_PACKETIZED:
316 codec_band=get_audio_payload_bandwidth(lc,pt);
317 ret=bandwidth_is_greater(allowed_bw*1000,codec_band);
318 /*hack to avoid using uwb codecs when having low bitrate and video*/
319 if (bandwidth_is_greater(199,allowed_bw)){
320 if (linphone_core_video_enabled(lc) && pt->clock_rate>16000){
324 //ms_message("Payload %s: %g",pt->mime_type,codec_band);
328 pt->normal_bitrate=video_bw*1000;
337 bool_t lp_spawn_command_line_sync(const char *command, char **result,int *command_ret){
338 #if !defined(_WIN32_WCE)
339 FILE *f=popen(command,"r");
342 *result=ms_malloc(4096);
343 err=fread(*result,1,4096-1,f);
345 ms_warning("Error reading command output:%s",strerror(errno));
351 if (command_ret!=NULL) *command_ret=err;
354 #endif /*_WIN32_WCE*/
358 static ortp_socket_t create_socket(int local_port){
359 struct sockaddr_in laddr;
362 sock=socket(PF_INET,SOCK_DGRAM,IPPROTO_UDP);
364 ms_error("Fail to create socket");
367 memset (&laddr,0,sizeof(laddr));
368 laddr.sin_family=AF_INET;
369 laddr.sin_addr.s_addr=INADDR_ANY;
370 laddr.sin_port=htons(local_port);
371 if (bind(sock,(struct sockaddr*)&laddr,sizeof(laddr))<0){
372 ms_error("Bind socket to 0.0.0.0:%i failed: %s",local_port,getSocketError());
377 if (setsockopt (sock, SOL_SOCKET, SO_REUSEADDR,
378 (SOCKET_OPTION_VALUE)&optval, sizeof (optval))<0){
379 ms_warning("Fail to set SO_REUSEADDR");
381 set_non_blocking_socket(sock);
385 static int sendStunRequest(int sock, const struct sockaddr *server, socklen_t addrlen, int id, bool_t changeAddr){
386 char buf[STUN_MAX_MESSAGE_SIZE];
387 int len = STUN_MAX_MESSAGE_SIZE;
388 StunAtrString username;
389 StunAtrString password;
392 memset(&req, 0, sizeof(StunMessage));
393 memset(&username,0,sizeof(username));
394 memset(&password,0,sizeof(password));
395 stunBuildReqSimple( &req, &username, changeAddr , changeAddr , id);
396 len = stunEncodeMessage( &req, buf, len, &password);
398 ms_error("Fail to encode stun message.");
401 err=sendto(sock,buf,len,0,server,addrlen);
403 ms_error("sendto failed: %s",strerror(errno));
409 int parse_hostname_to_addr(const char *server, struct sockaddr_storage *ss, socklen_t *socklen){
410 struct addrinfo hints,*res=NULL;
411 int family = PF_INET;
415 char host[NI_MAXHOST];
417 if ((sscanf(server, "[%64[^]]]:%d", host, &port_int) == 2) || (sscanf(server, "[%64[^]]]", host) == 1)) {
420 p1 = strchr(server, ':');
421 p2 = strrchr(server, ':');
422 if (p1 && p2 && (p1 != p2)) {
424 host[NI_MAXHOST-1]='\0';
425 strncpy(host, server, sizeof(host) - 1);
426 } else if (sscanf(server, "%[^:]:%d", host, &port_int) != 2) {
427 host[NI_MAXHOST-1]='\0';
428 strncpy(host, server, sizeof(host) - 1);
431 snprintf(port, sizeof(port), "%d", port_int);
432 memset(&hints,0,sizeof(hints));
433 hints.ai_family=family;
434 hints.ai_socktype=SOCK_DGRAM;
435 hints.ai_protocol=IPPROTO_UDP;
436 ret=getaddrinfo(host,port,&hints,&res);
438 ms_error("getaddrinfo() failed for %s:%s : %s",host,port,gai_strerror(ret));
442 memcpy(ss,res->ai_addr,res->ai_addrlen);
443 *socklen=res->ai_addrlen;
448 static int recvStunResponse(ortp_socket_t sock, char *ipaddr, int *port, int *id){
449 char buf[STUN_MAX_MESSAGE_SIZE];
450 int len = STUN_MAX_MESSAGE_SIZE;
452 len=recv(sock,buf,len,0);
455 stunParseMessage(buf,len, &resp );
456 *id=resp.msgHdr.tr_id.octet[0];
457 if (resp.hasXorMappedAddress){
458 *port = resp.xorMappedAddress.ipv4.port;
459 ia.s_addr=htonl(resp.xorMappedAddress.ipv4.addr);
460 }else if (resp.hasMappedAddress){
461 *port = resp.mappedAddress.ipv4.port;
462 ia.s_addr=htonl(resp.mappedAddress.ipv4.addr);
464 strncpy(ipaddr,inet_ntoa(ia),LINPHONE_IPADDR_SIZE);
469 /* this functions runs a simple stun test and return the number of milliseconds to complete the tests, or -1 if the test were failed.*/
470 int linphone_core_run_stun_tests(LinphoneCore *lc, LinphoneCall *call){
471 const char *server=linphone_core_get_stun_server(lc);
473 if (lc->sip_conf.ipv6_enabled){
474 ms_warning("stun support is not implemented for ipv6");
478 struct sockaddr_storage ss;
480 ortp_socket_t sock1=-1, sock2=-1;
482 bool_t video_enabled=linphone_core_video_enabled(lc);
483 bool_t got_audio,got_video;
484 bool_t cone_audio=FALSE,cone_video=FALSE;
485 struct timeval init,cur;
486 SalEndpointCandidate *ac,*vc;
490 ac=&call->localdesc->streams[0].candidates[0];
491 vc=&call->localdesc->streams[1].candidates[0];
493 if (parse_hostname_to_addr(server,&ss,&ss_len)<0){
494 ms_error("Fail to parser stun server address: %s",server);
497 if (lc->vtable.display_status!=NULL)
498 lc->vtable.display_status(lc,_("Stun lookup in progress..."));
500 /*create the two audio and video RTP sockets, and send STUN message to our stun server */
501 sock1=create_socket(call->audio_port);
502 if (sock1==-1) return -1;
504 sock2=create_socket(call->video_port);
505 if (sock2==-1) return -1;
509 gettimeofday(&init,NULL);
514 ms_message("Sending stun requests...");
515 sendStunRequest(sock1,(struct sockaddr*)&ss,ss_len,11,TRUE);
516 sendStunRequest(sock1,(struct sockaddr*)&ss,ss_len,1,FALSE);
518 sendStunRequest(sock2,(struct sockaddr*)&ss,ss_len,22,TRUE);
519 sendStunRequest(sock2,(struct sockaddr*)&ss,ss_len,2,FALSE);
528 if (recvStunResponse(sock1,ac->addr,
530 ms_message("STUN test result: local audio port maps to %s:%i",
537 if (recvStunResponse(sock2,vc->addr,
539 ms_message("STUN test result: local video port maps to %s:%i",
546 gettimeofday(&cur,NULL);
547 elapsed=((cur.tv_sec-init.tv_sec)*1000.0) + ((cur.tv_usec-init.tv_usec)/1000.0);
549 ms_message("Stun responses timeout, going ahead.");
554 }while(!(got_audio && (got_video||sock2==-1) ) );
555 if (ret==0) ret=(int)elapsed;
557 ms_error("No stun server response for audio port.");
560 ms_message("NAT is symmetric for audio port");
565 ms_error("No stun server response for video port.");
568 ms_message("NAT is symmetric for video port.");
572 if ((ac->addr[0]!='\0' && vc->addr[0]!='\0' && strcmp(ac->addr,vc->addr)==0)
574 strcpy(call->localdesc->addr,ac->addr);
577 if (sock2!=-1) close_socket(sock2);
584 void linphone_core_adapt_to_network(LinphoneCore *lc, int ping_time_ms, LinphoneCallParams *params){
585 if (lp_config_get_int(lc->config,"net","activate_edge_workarounds",0)==1){
586 int threshold=lp_config_get_int(lc->config,"net","edge_ping_time",500);
588 if (ping_time_ms>threshold){
589 int edge_ptime=lp_config_get_int(lc->config,"net","edge_ptime",100);
590 int edge_bw=lp_config_get_int(lc->config,"net","edge_bw",30);
591 /* we are in a 2G network*/
592 params->up_bw=params->down_bw=edge_bw;
593 params->up_ptime=params->down_ptime=edge_ptime;
595 }/*else use default settings */
601 int linphone_core_gather_ice_candidates(LinphoneCore *lc, LinphoneCall *call)
604 struct sockaddr_storage ss;
606 IceCheckList *audio_check_list;
607 IceCheckList *video_check_list;
608 const char *server = linphone_core_get_stun_server(lc);
610 if ((server == NULL) || (call->ice_session == NULL)) return -1;
611 audio_check_list = ice_session_check_list(call->ice_session, 0);
612 video_check_list = ice_session_check_list(call->ice_session, 1);
613 if (audio_check_list == NULL) return -1;
615 if (lc->sip_conf.ipv6_enabled){
616 ms_warning("stun support is not implemented for ipv6");
620 if (parse_hostname_to_addr(server, &ss, &ss_len) < 0) {
621 ms_error("Fail to parser stun server address: %s", server);
624 if (lc->vtable.display_status != NULL)
625 lc->vtable.display_status(lc, _("ICE local candidates gathering in progress..."));
627 /* Gather local host candidates. */
628 if (linphone_core_get_local_ip_for(AF_INET, NULL, local_addr) < 0) {
629 ms_error("Fail to get local ip");
632 ice_add_local_candidate(audio_check_list, "host", local_addr, call->audio_port, 1, NULL);
633 ice_add_local_candidate(audio_check_list, "host", local_addr, call->audio_port + 1, 2, NULL);
634 if (call->params.has_video && (video_check_list != NULL)) {
635 ice_add_local_candidate(video_check_list, "host", local_addr, call->video_port, 1, NULL);
636 ice_add_local_candidate(video_check_list, "host", local_addr, call->video_port + 1, 2, NULL);
639 /* Gather local srflx candidates. */
640 ice_session_gather_candidates(call->ice_session, ss, ss_len);
644 void linphone_core_update_local_media_description_from_ice(SalMediaDescription *desc, IceSession *session)
646 const char *rtp_addr, *rtcp_addr;
647 IceSessionState session_state = ice_session_state(session);
652 if (session_state == IS_Completed) {
653 desc->ice_completed = TRUE;
654 ice_check_list_selected_valid_local_candidate(ice_session_check_list(session, 0), &rtp_addr, NULL, NULL, NULL);
655 strncpy(desc->addr, rtp_addr, sizeof(desc->addr));
658 desc->ice_completed = FALSE;
660 strncpy(desc->ice_pwd, ice_session_local_pwd(session), sizeof(desc->ice_pwd));
661 strncpy(desc->ice_ufrag, ice_session_local_ufrag(session), sizeof(desc->ice_ufrag));
662 for (i = 0; i < desc->nstreams; i++) {
663 SalStreamDescription *stream = &desc->streams[i];
664 IceCheckList *cl = ice_session_check_list(session, i);
666 if (cl == NULL) continue;
667 if (ice_check_list_state(cl) == ICL_Completed) {
668 stream->ice_completed = TRUE;
669 result = ice_check_list_selected_valid_local_candidate(ice_session_check_list(session, i), &rtp_addr, &stream->rtp_port, &rtcp_addr, &stream->rtcp_port);
671 stream->ice_completed = FALSE;
672 result = ice_check_list_default_local_candidate(ice_session_check_list(session, i), &rtp_addr, &stream->rtp_port, &rtcp_addr, &stream->rtcp_port);
674 if (result == TRUE) {
675 strncpy(stream->rtp_addr, rtp_addr, sizeof(stream->rtp_addr));
676 strncpy(stream->rtcp_addr, rtcp_addr, sizeof(stream->rtcp_addr));
678 memset(stream->rtp_addr, 0, sizeof(stream->rtp_addr));
679 memset(stream->rtcp_addr, 0, sizeof(stream->rtcp_addr));
681 if ((strlen(ice_check_list_local_pwd(cl)) != strlen(desc->ice_pwd)) || (strcmp(ice_check_list_local_pwd(cl), desc->ice_pwd)))
682 strncpy(stream->ice_pwd, ice_check_list_local_pwd(cl), sizeof(stream->ice_pwd));
684 memset(stream->ice_pwd, 0, sizeof(stream->ice_pwd));
685 if ((strlen(ice_check_list_local_ufrag(cl)) != strlen(desc->ice_ufrag)) || (strcmp(ice_check_list_local_ufrag(cl), desc->ice_ufrag)))
686 strncpy(stream->ice_ufrag, ice_check_list_local_ufrag(cl), sizeof(stream->ice_ufrag));
688 memset(stream->ice_pwd, 0, sizeof(stream->ice_pwd));
689 stream->ice_mismatch = ice_check_list_is_mismatch(cl);
690 if ((ice_check_list_state(cl) == ICL_Running) || (ice_check_list_state(cl) == ICL_Completed)) {
691 memset(stream->ice_candidates, 0, sizeof(stream->ice_candidates));
692 for (j = 0; j < MIN(ms_list_size(cl->local_candidates), SAL_MEDIA_DESCRIPTION_MAX_ICE_CANDIDATES); j++) {
693 SalIceCandidate *sal_candidate = &stream->ice_candidates[nb_candidates];
694 IceCandidate *ice_candidate = ms_list_nth_data(cl->local_candidates, j);
695 const char *default_addr = NULL;
696 int default_port = 0;
697 if (ice_candidate->componentID == 1) {
698 default_addr = stream->rtp_addr;
699 default_port = stream->rtp_port;
700 } else if (ice_candidate->componentID == 2) {
701 default_addr = stream->rtcp_addr;
702 default_port = stream->rtcp_port;
704 if (default_addr[0] == '\0') default_addr = desc->addr;
705 /* Only include the candidates matching the default destination for each component of the stream if the state is Completed as specified in RFC5245 section 9.1.2.2. */
706 if ((ice_check_list_state(cl) == ICL_Completed)
707 && !((ice_candidate->taddr.port == default_port) && (strlen(ice_candidate->taddr.ip) == strlen(default_addr)) && (strcmp(ice_candidate->taddr.ip, default_addr) == 0)))
709 strncpy(sal_candidate->foundation, ice_candidate->foundation, sizeof(sal_candidate->foundation));
710 sal_candidate->componentID = ice_candidate->componentID;
711 sal_candidate->priority = ice_candidate->priority;
712 strncpy(sal_candidate->type, ice_candidate_type(ice_candidate), sizeof(sal_candidate->type));
713 strncpy(sal_candidate->addr, ice_candidate->taddr.ip, sizeof(sal_candidate->addr));
714 sal_candidate->port = ice_candidate->taddr.port;
715 if ((ice_candidate->base != NULL) && (ice_candidate->base != ice_candidate)) {
716 strncpy(sal_candidate->raddr, ice_candidate->base->taddr.ip, sizeof(sal_candidate->raddr));
717 sal_candidate->rport = ice_candidate->base->taddr.port;
722 if ((ice_check_list_state(cl) == ICL_Completed) && (ice_session_role(session) == IR_Controlling)) {
723 int rtp_port, rtcp_port;
724 memset(stream->ice_remote_candidates, 0, sizeof(stream->ice_remote_candidates));
725 ice_check_list_selected_valid_remote_candidate(cl, &rtp_addr, &rtp_port, &rtcp_addr, &rtcp_port);
726 strncpy(stream->ice_remote_candidates[0].addr, rtp_addr, sizeof(stream->ice_remote_candidates[0].addr));
727 stream->ice_remote_candidates[0].port = rtp_port;
728 strncpy(stream->ice_remote_candidates[1].addr, rtcp_addr, sizeof(stream->ice_remote_candidates[1].addr));
729 stream->ice_remote_candidates[1].port = rtcp_port;
734 static void get_default_addr_and_port(uint16_t componentID, const SalMediaDescription *md, const SalStreamDescription *stream, const char **addr, int *port)
736 if (componentID == 1) {
737 *addr = stream->rtp_addr;
738 *port = stream->rtp_port;
739 } else if (componentID == 2) {
740 *addr = stream->rtcp_addr;
741 *port = stream->rtcp_port;
743 if ((*addr)[0] == '\0') *addr = md->addr;
746 void linphone_core_update_ice_from_remote_media_description(LinphoneCall *call, const SalMediaDescription *md)
748 bool_t ice_restarted = FALSE;
750 if ((md->ice_pwd[0] != '\0') && (md->ice_ufrag[0] != '\0')) {
753 /* Check for ICE restart and set remote credentials. */
754 if ((strcmp(md->addr, "0.0.0.0") == 0) || (strcmp(md->addr, "::0") == 0)) {
755 ice_session_restart(call->ice_session);
756 ice_restarted = TRUE;
758 for (i = 0; i < md->nstreams; i++) {
759 const SalStreamDescription *stream = &md->streams[i];
760 IceCheckList *cl = ice_session_check_list(call->ice_session, i);
761 if (cl && (strcmp(stream->rtp_addr, "0.0.0.0") == 0)) {
762 ice_session_restart(call->ice_session);
763 ice_restarted = TRUE;
768 if ((ice_session_remote_ufrag(call->ice_session) == NULL) && (ice_session_remote_pwd(call->ice_session) == NULL)) {
769 ice_session_set_remote_credentials(call->ice_session, md->ice_ufrag, md->ice_pwd);
770 } else if (ice_session_remote_credentials_changed(call->ice_session, md->ice_ufrag, md->ice_pwd)) {
771 if (ice_restarted == FALSE) {
772 ice_session_restart(call->ice_session);
773 ice_restarted = TRUE;
775 ice_session_set_remote_credentials(call->ice_session, md->ice_ufrag, md->ice_pwd);
777 for (i = 0; i < md->nstreams; i++) {
778 const SalStreamDescription *stream = &md->streams[i];
779 IceCheckList *cl = ice_session_check_list(call->ice_session, i);
780 if (cl && (stream->ice_pwd[0] != '\0') && (stream->ice_ufrag[0] != '\0')) {
781 if (ice_check_list_remote_credentials_changed(cl, stream->ice_ufrag, stream->ice_pwd)) {
782 if (ice_restarted == FALSE) {
783 ice_session_restart(call->ice_session);
784 ice_restarted = TRUE;
786 ice_session_set_remote_credentials(call->ice_session, md->ice_ufrag, md->ice_pwd);
792 /* Create ICE check lists if needed and parse ICE attributes. */
793 for (i = 0; i < md->nstreams; i++) {
794 const SalStreamDescription *stream = &md->streams[i];
795 IceCheckList *cl = ice_session_check_list(call->ice_session, i);
797 cl = ice_check_list_new();
798 ice_session_add_check_list(call->ice_session, cl);
799 switch (stream->type) {
801 if (call->audiostream != NULL) call->audiostream->ice_check_list = cl;
804 if (call->videostream != NULL) call->videostream->ice_check_list = cl;
810 if ((stream->ice_mismatch == TRUE) || (stream->rtp_port == 0)) {
811 ice_check_list_set_state(cl, ICL_Failed);
813 if ((stream->ice_pwd[0] != '\0') && (stream->ice_ufrag[0] != '\0'))
814 ice_check_list_set_remote_credentials(cl, stream->ice_ufrag, stream->ice_pwd);
815 for (j = 0; j < SAL_MEDIA_DESCRIPTION_MAX_ICE_CANDIDATES; j++) {
816 const SalIceCandidate *candidate = &stream->ice_candidates[j];
817 bool_t default_candidate = FALSE;
818 const char *addr = NULL;
820 if (candidate->addr[0] == '\0') break;
821 if ((candidate->componentID == 0) || (candidate->componentID > 2)) continue;
822 get_default_addr_and_port(candidate->componentID, md, stream, &addr, &port);
823 if (addr && (candidate->port == port) && (strlen(candidate->addr) == strlen(addr)) && (strcmp(candidate->addr, addr) == 0))
824 default_candidate = TRUE;
825 ice_add_remote_candidate(cl, candidate->type, candidate->addr, candidate->port, candidate->componentID,
826 candidate->priority, candidate->foundation, default_candidate);
828 if (ice_restarted == FALSE) {
829 bool_t losing_pairs_added = FALSE;
830 for (j = 0; j < SAL_MEDIA_DESCRIPTION_MAX_ICE_REMOTE_CANDIDATES; j++) {
831 const SalIceRemoteCandidate *candidate = &stream->ice_remote_candidates[j];
832 const char *addr = NULL;
834 int componentID = j + 1;
835 if (candidate->addr[0] == '\0') break;
836 get_default_addr_and_port(componentID, md, stream, &addr, &port);
837 ice_add_losing_pair(cl, j + 1, candidate->addr, candidate->port, addr, port);
838 losing_pairs_added = TRUE;
840 if (losing_pairs_added == TRUE) ice_check_list_check_completed(cl);
844 for (i = ice_session_nb_check_lists(call->ice_session); i > md->nstreams; i--) {
845 ice_session_remove_check_list(call->ice_session, ice_session_check_list(call->ice_session, i - 1));
847 ice_session_check_mismatch(call->ice_session);
849 if (ice_session_nb_check_lists(call->ice_session) == 0) {
850 linphone_call_delete_ice_session(call);
854 void linphone_core_deactivate_ice_for_deactivated_media_streams(LinphoneCall *call, const SalMediaDescription *md)
857 for (i = 0; i < md->nstreams; i++) {
858 IceCheckList *cl = ice_session_check_list(call->ice_session, i);
859 if (cl && (md->streams[i].rtp_port == 0)) {
860 if (ice_check_list_state(cl) != ICL_Completed) ice_check_list_set_state(cl, ICL_Failed);
865 LinphoneCall * is_a_linphone_call(void *user_pointer){
866 LinphoneCall *call=(LinphoneCall*)user_pointer;
867 if (call==NULL) return NULL;
868 return call->magic==linphone_call_magic ? call : NULL;
871 LinphoneProxyConfig * is_a_linphone_proxy_config(void *user_pointer){
872 LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)user_pointer;
873 if (cfg==NULL) return NULL;
874 return cfg->magic==linphone_proxy_config_magic ? cfg : NULL;
877 unsigned int linphone_core_get_audio_features(LinphoneCore *lc){
879 const char *features=lp_config_get_string(lc->config,"sound","features",NULL);
884 strncpy(tmp,features,sizeof(tmp)-1);
885 for(p=tmp;*p!='\0';p++){
886 if (*p==' ') continue;
890 ms_message("Found audio feature %s",name);
891 if (strcasecmp(name,"PLC")==0) ret|=AUDIO_STREAM_FEATURE_PLC;
892 else if (strcasecmp(name,"EC")==0) ret|=AUDIO_STREAM_FEATURE_EC;
893 else if (strcasecmp(name,"EQUALIZER")==0) ret|=AUDIO_STREAM_FEATURE_EQUALIZER;
894 else if (strcasecmp(name,"VOL_SND")==0) ret|=AUDIO_STREAM_FEATURE_VOL_SND;
895 else if (strcasecmp(name,"VOL_RCV")==0) ret|=AUDIO_STREAM_FEATURE_VOL_RCV;
896 else if (strcasecmp(name,"DTMF")==0) ret|=AUDIO_STREAM_FEATURE_DTMF;
897 else if (strcasecmp(name,"DTMF_ECHO")==0) ret|=AUDIO_STREAM_FEATURE_DTMF_ECHO;
898 else if (strcasecmp(name,"ALL")==0) ret|=AUDIO_STREAM_FEATURE_ALL;
899 else if (strcasecmp(name,"NONE")==0) ret=0;
900 else ms_error("Unsupported audio feature %s requested in config file.",name);
904 }else ret=AUDIO_STREAM_FEATURE_ALL;
909 #ifdef HAVE_GETIFADDRS
912 static int get_local_ip_with_getifaddrs(int type, char *address, int size)
915 struct ifaddrs *ifpstart;
918 if (getifaddrs(&ifpstart) < 0) {
922 for (ifp = ifpstart; ifp != NULL; ifp = ifp->ifa_next) {
923 if (ifp->ifa_addr && ifp->ifa_addr->sa_family == type
924 && (ifp->ifa_flags & IFF_RUNNING) && !(ifp->ifa_flags & IFF_LOOPBACK))
926 getnameinfo(ifp->ifa_addr,
928 sizeof(struct sockaddr_in6) : sizeof(struct sockaddr_in),
929 address, size, NULL, 0, NI_NUMERICHOST);
930 if (strchr(address, '%') == NULL) { /*avoid ipv6 link-local addresses */
931 /*ms_message("getifaddrs() found %s",address);*/
937 freeifaddrs(ifpstart);
943 static int get_local_ip_for_with_connect(int type, const char *dest, char *result){
945 struct addrinfo hints;
946 struct addrinfo *res=NULL;
947 struct sockaddr_storage addr;
948 struct sockaddr *p_addr=(struct sockaddr*)&addr;
952 memset(&hints,0,sizeof(hints));
953 hints.ai_family=(type==AF_INET6) ? PF_INET6 : PF_INET;
954 hints.ai_socktype=SOCK_DGRAM;
955 /*hints.ai_flags=AI_NUMERICHOST|AI_CANONNAME;*/
956 err=getaddrinfo(dest,"5060",&hints,&res);
958 ms_error("getaddrinfo() error: %s",gai_strerror(err));
962 ms_error("bug: getaddrinfo returned nothing.");
965 sock=socket(res->ai_family,SOCK_DGRAM,0);
967 err=setsockopt(sock,SOL_SOCKET,SO_REUSEADDR,(SOCKET_OPTION_VALUE)&tmp,sizeof(int));
969 ms_warning("Error in setsockopt: %s",strerror(errno));
971 err=connect(sock,res->ai_addr,res->ai_addrlen);
973 ms_error("Error in connect: %s",strerror(errno));
981 err=getsockname(sock,(struct sockaddr*)&addr,&s);
983 ms_error("Error in getsockname: %s",strerror(errno));
987 if (p_addr->sa_family==AF_INET){
988 struct sockaddr_in *p_sin=(struct sockaddr_in*)p_addr;
989 if (p_sin->sin_addr.s_addr==0){
994 err=getnameinfo((struct sockaddr *)&addr,s,result,LINPHONE_IPADDR_SIZE,NULL,0,NI_NUMERICHOST);
996 ms_error("getnameinfo error: %s",strerror(errno));
999 ms_message("Local interface to reach %s is %s.",dest,result);
1003 int linphone_core_get_local_ip_for(int type, const char *dest, char *result){
1004 strcpy(result,type==AF_INET ? "127.0.0.1" : "::1");
1005 #ifdef HAVE_GETIFADDRS
1007 /*we use getifaddrs for lookup of default interface */
1010 found_ifs=get_local_ip_with_getifaddrs(type,result,LINPHONE_IPADDR_SIZE);
1013 }else if (found_ifs<=0){
1014 /*absolutely no network on this machine */
1019 /*else use connect to find the best local ip address */
1021 dest="87.98.157.38"; /*a public IP address*/
1022 else dest="2a00:1450:8002::68";
1023 return get_local_ip_for_with_connect(type,dest,result);
1031 void _linphone_core_configure_resolver(){
1032 /*bionic declares _res but does not define nor export it !!*/
1034 /*timeout and attempts are the same as retrans and retry, but are android specific names.*/
1035 setenv("RES_OPTIONS","timeout:2 attempts:2 retrans:2 retry:2",1);
1038 _res.retrans=2; /*retransmit every two seconds*/
1039 _res.retry=2; /*only two times per DNS server*/
1045 void _linphone_core_configure_resolver(){