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James Zern authored
Change-Id: I5164df72aff84eca0ace56032c5373f04053c6a5
25cfd8e8
/*linphoneCopyright (C) 2000 Simon MORLAT (simon.morlat@free.fr)This program is free software; you can redistribute it and/ormodify it under the terms of the GNU General Public Licenseas published by the Free Software Foundation; either version 2of the License, or (at your option) any later version.This program is distributed in the hope that it will be useful,but WITHOUT ANY WARRANTY; without even the implied warranty ofMERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See theGNU General Public License for more details.You should have received a copy of the GNU General Public Licensealong with this program; if not, write to the Free SoftwareFoundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.*/#include "exevents.h"#include "linphonecore.h"#include "private.h"#include "mediastreamer2/mediastream.h"#include <eXosip2/eXosip.h>#include <osipparser2/osip_message.h>#include <osipparser2/osip_parser.h>static int linphone_answer_sdp(LinphoneCore *lc, eXosip_event_t *ev, sdp_message_t *sdp);static bool_t linphone_call_matches_event(LinphoneCall *call, eXosip_event_t *ev){ return call->cid==ev->cid;}static void linphone_call_proceeding(LinphoneCore *lc, eXosip_event_t *ev){ if (lc->call==NULL || (lc->call->cid!=-1 && !linphone_call_matches_event(lc->call,ev)) ) { ms_warning("This call has been canceled: call=%p, call->cid=%i, ev->cid=%i", lc->call,lc->call->cid,ev->cid); eXosip_lock(); eXosip_call_terminate(ev->cid,ev->did); eXosip_unlock(); return; } lc->call->cid=ev->cid; lc->call->did=ev->did; lc->call->tid=ev->tid;}static void linphone_connect_incoming(LinphoneCore *lc){ lc->vtable.show(lc); lc->vtable.display_status(lc,_("Connected.")); lc->call->state=LCStateAVRunning; if (lc->ringstream!=NULL){ ring_stop(lc->ringstream); lc->ringstream=NULL; } if (lc->audiostream->ticker!=NULL){ /*case where we accepted early media */ linphone_core_stop_media_streams(lc); linphone_core_init_media_streams(lc); } linphone_core_start_media_streams(lc,lc->call);}int linphone_call_accepted(LinphoneCore *lc, eXosip_event_t *ev){ LinphoneCall *call=lc->call; sdp_message_t *sdp; const char *sdpanswer=NULL; osip_message_t *msg=NULL; int err;7172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140
if (call==NULL){
ms_warning("No call to accept.");
return 0;
}
linphone_call_proceeding(lc,ev);
if (!linphone_call_matches_event(lc->call,ev)) return 0;
call->auth_pending=FALSE;
if (call->state==LCStateAVRunning){
return 0; /*already accepted*/
}
linphone_call_init_media_params(call);
sdp=eXosip_get_sdp_info(ev->response);
if (!lc->sip_conf.sdp_200_ack){
err=0;
sdp_context_read_answer(call->sdpctx,sdp);
}else{
/*we receive a 200OK with an sdp offer*/
err=linphone_answer_sdp(lc,ev,sdp);
if (err==0) sdpanswer=call->sdpctx->answerstr;
}
if (err==0){
gstate_new_state(lc, GSTATE_CALL_OUT_CONNECTED, NULL);
linphone_connect_incoming(lc);
}
/*send the ack once streams are started*/
eXosip_call_build_ack(ev->did,&msg);
if (sdpanswer!=NULL) linphone_set_sdp(msg,sdpanswer);
eXosip_call_send_ack(ev->did,msg);
if (err!=0){
/*send a bye*/
ms_error("Incompatible SDP offer received in 200Ok, need to abort the call");
linphone_core_terminate_call(lc,NULL);
}
sdp_message_free(sdp);
return 0;
}
int linphone_call_terminated(LinphoneCore *lc, eXosip_event_t *ev)
{
/*stop ringing if necessary*/
if (lc->call!=NULL){
if (lc->call->cid!=ev->cid){
/* this is not current call */
ms_message("call %i terminated, this was not current call.",ev->cid);
return 0;
}
}
ms_message("Current call terminated...");
if (lc->ringstream!=NULL) {
ring_stop(lc->ringstream);
lc->ringstream=NULL;
}
linphone_core_stop_media_streams(lc);
lc->vtable.show(lc);
lc->vtable.display_status(lc,_("Call terminated."));
gstate_new_state(lc, GSTATE_CALL_END, NULL);
if (lc->vtable.bye_recv!=NULL){
char *from;
osip_from_to_str(ev->request->from,&from);
lc->vtable.bye_recv(lc,from);
osip_free(from);
}
if (lc->call!=NULL){
linphone_call_destroy(lc->call);
lc->call=NULL;
}
return 0;
}
141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210
int linphone_call_released(LinphoneCore *lc, int cid){
LinphoneCall *call=lc->call;
if (call!=NULL && call->cid==cid){
linphone_call_destroy(lc->call);
lc->call=NULL;
lc->vtable.display_status(lc,_("Could not reach destination."));
gstate_new_state(lc, GSTATE_CALL_ERROR, NULL);
}
return 0;
}
int linphone_call_failure(LinphoneCore *lc, eXosip_event_t *ev)
{
const char *reason="";
char *msg486=_("User is busy.");
char *msg480=_("User is temporarily unavailable.");
char *msg487=_("Request Cancelled.");
/*char *retrymsg=_("%s. Retry after %i minute(s).");*/
char *msg600=_("User does not want to be disturbed.");
char *msg603=_("Call declined.");
char* tmpmsg=msg486;
int code;
LinphoneCall *call=lc->call;
if (call){
/*check that the faillure is related to this call, not an old one*/
if (!linphone_call_matches_event(call,ev)) {
ms_warning("Failure reported for an old call.");
return 0;
}
}
if (ev->response){
code=osip_message_get_status_code(ev->response);
reason=osip_message_get_reason_phrase(ev->response);
}else code=-110;
lc->vtable.show(lc);
switch(code)
{
case 401:
case 407:
if (lc->call!=NULL)
linphone_process_authentication(lc,ev);
return 0;
break;
case 400:
lc->vtable.display_status(lc,_("Bad request"));
break;
case 404:
lc->vtable.display_status(lc,_("User cannot be found at given address."));
break;
case 415:
lc->vtable.display_status(lc,_("Remote user cannot support any of proposed codecs."));
break;
case 422:
/*ignore: eXosip_automatic_action will do the job of retrying with a greater Session-Expires*/
return 0;
break;
case 480:
tmpmsg=msg480;
case 486:
/*
msg_header_getbyname(msg,"retry-after",0,&retry);
if (retry!=NULL)
{
umsg=g_malloc(strlen(tmpmsg)+strlen(retrymsg)+13);
211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280
sprintf(umsg,retrymsg,tmpmsg,atoi(retry->hvalue)/60);
lc->vtable.display_message(lc,umsg);
ms_free(umsg);
}*/
lc->vtable.display_message(lc,tmpmsg);
break;
case 487:
lc->vtable.display_status(lc,msg487);
break;
case 600:
lc->vtable.display_message(lc,msg600);
break;
case 603:
lc->vtable.display_status(lc,msg603);
break;
case -110: /* time out, call leg is lost */
lc->vtable.display_status(lc,_("Timeout."));
break;
case -111:
lc->vtable.display_status(lc,_("Remote host was found but refused connection."));
break;
default:
if (code>0)
{
lc->vtable.display_status(lc,reason);
}
else ms_warning("failure_cb unknown code=%i\n",code);
}
if (lc->ringstream!=NULL) {
ring_stop(lc->ringstream);
lc->ringstream=NULL;
}
linphone_core_stop_media_streams(lc);
if (call!=NULL) {
linphone_call_destroy(call);
gstate_new_state(lc, GSTATE_CALL_ERROR, NULL);
lc->call=NULL;
}
return 0;
}
extern sdp_handler_t linphone_sdphandler;
static int linphone_answer_sdp(LinphoneCore *lc, eXosip_event_t *ev, sdp_message_t *sdp){
int status=200;
sdp_context_t *ctx=NULL;
ctx=lc->call->sdpctx;
/* get the result of the negociation */
sdp_context_get_answer(ctx,sdp);
status=sdp_context_get_status(ctx);
if (status==200){
linphone_core_init_media_streams(lc);
return 0;
}else{
if (status==-1) status=415;
}
return -1;
}
int linphone_inc_new_call(LinphoneCore *lc, eXosip_event_t *ev)
{
sdp_message_t *sdp=NULL;
osip_from_t *from_url=ev->request->from;
char *barmesg;
char *from;
char *to;
int err;
281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350
osip_from_to_str(ev->request->from,&from);
osip_to_to_str(ev->request->to,&to);
/* first check if we can answer successfully to this invite */
if (lc->presence_mode!=LINPHONE_STATUS_ONLINE){
ms_message("Not present !! presence mode : %d\n",lc->presence_mode);
eXosip_lock();
if (lc->presence_mode==LINPHONE_STATUS_BUSY)
eXosip_call_send_answer(ev->tid,486,NULL);
else if (lc->presence_mode==LINPHONE_STATUS_AWAY
||lc->presence_mode==LINPHONE_STATUS_BERIGHTBACK
||lc->presence_mode==LINPHONE_STATUS_ONTHEPHONE
||lc->presence_mode==LINPHONE_STATUS_OUTTOLUNCH
||lc->presence_mode==LINPHONE_STATUS_OFFLINE)
eXosip_call_send_answer(ev->tid,480,NULL);
else if (lc->presence_mode==LINPHONE_STATUS_NOT_DISTURB)
eXosip_call_send_answer(ev->tid,480,NULL);
else if (lc->alt_contact!=NULL && lc->presence_mode==LINPHONE_STATUS_MOVED)
{
osip_message_t *msg;
eXosip_call_build_answer(ev->tid,302,&msg);
osip_message_set_contact(msg,lc->alt_contact);
eXosip_call_send_answer(ev->tid,302,msg);
}
else if (lc->alt_contact!=NULL && lc->presence_mode==LINPHONE_STATUS_ALT_SERVICE)
{
osip_message_t *msg;
eXosip_call_build_answer(ev->tid,380,&msg);
osip_message_set_contact(msg,lc->alt_contact);
eXosip_call_send_answer(ev->tid,380,msg);
}
else
eXosip_call_send_answer(ev->tid,486,NULL);
eXosip_unlock();
goto end;
}
if (lc->call!=NULL){/*busy*/
eXosip_lock();
eXosip_call_send_answer(ev->tid,486,NULL);
eXosip_unlock();
goto end;
}
lc->call=linphone_call_new_incoming(lc,linphone_address_new(from),linphone_address_new(to),ev);
sdp=eXosip_get_sdp_info(ev->request);
if (sdp==NULL){
ms_message("No sdp body in invite, 200-ack scheme");
err=0;
}else{
err=linphone_answer_sdp(lc,ev,sdp);
}
if (!err){
char *tmp;
if (from_2char_without_params(from_url,&tmp)!=0){
tmp=ms_strdup("Unknown user");
}
gstate_new_state(lc, GSTATE_CALL_IN_INVITE, tmp);
barmesg=ortp_strdup_printf("%s %s",tmp,_("is contacting you."));
lc->vtable.show(lc);
lc->vtable.display_status(lc,barmesg);
/* play the ring */
if (lc->sound_conf.ring_sndcard!=NULL){
ms_message("Starting local ring...");
lc->ringstream=ring_start(lc->sound_conf.local_ring,2000,lc->sound_conf.ring_sndcard);
}
linphone_call_set_state(lc->call,LCStateRinging);
eXosip_lock();
eXosip_call_send_answer(ev->tid,180,NULL);
351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420
eXosip_unlock();
lc->vtable.inv_recv(lc,tmp);
ms_free(barmesg);
osip_free(tmp);
}else{
ms_error("Error during sdp negociation. ");
eXosip_lock();
eXosip_call_send_answer(ev->tid,415,NULL);
eXosip_unlock();
linphone_call_destroy(lc->call);
lc->call=NULL;
}
end:
osip_free(from);
osip_free(to);
if (sdp) sdp_message_free(sdp);
return 0;
}
void linphone_handle_ack(LinphoneCore *lc, eXosip_event_t *ev){
sdp_message_t *sdp=eXosip_get_sdp_info(ev->ack);
if (sdp){
sdp_context_read_answer(lc->call->sdpctx,sdp);
linphone_connect_incoming(lc);
sdp_message_free(sdp);
}
}
void linphone_handle_reinvite(LinphoneCore *lc, eXosip_event_t *ev){
sdp_message_t *sdp=eXosip_get_sdp_info(ev->request);
sdp_context_t *ctx;
LinphoneCall *call=lc->call;
char *answer;
int status;
if (sdp==NULL){
ms_warning("No sdp in reinvite !");
eXosip_lock();
eXosip_call_send_answer(ev->tid,603,NULL);
eXosip_unlock();
return;
}
ctx=call->sdpctx;
/* get the result of the negociation */
linphone_call_init_media_params(call);
answer=sdp_context_get_answer(ctx,sdp);
status=sdp_context_get_status(ctx);
if (status==200){
osip_message_t *msg=NULL;
linphone_core_stop_media_streams(lc);
linphone_core_init_media_streams(lc);
eXosip_lock();
if (eXosip_call_build_answer(ev->tid,200,&msg)<0){
ms_warning("Reinvite for closed call ?");
eXosip_unlock();
linphone_core_stop_media_streams(lc);
sdp_message_free(sdp);
return ;
}
answer=call->sdpctx->answerstr; /* takes the sdp already computed*/
linphone_set_sdp(msg,answer);
eXosip_call_send_answer(ev->tid,200,msg);
eXosip_unlock();
linphone_core_start_media_streams(lc,call);
}else{
eXosip_lock();
eXosip_call_send_answer(ev->tid,status,NULL);
eXosip_unlock();
}
sdp_message_free(sdp);
421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490
}
void linphone_do_automatic_redirect(LinphoneCore *lc, const char *contact){
char *msg=ortp_strdup_printf(_("Redirected to %s..."),contact);
lc->vtable.display_status(lc,msg);
ms_free(msg);
if (lc->call!=NULL) linphone_call_destroy(lc->call);
lc->call=NULL;
linphone_core_invite(lc,contact);
}
void linphone_call_redirected(LinphoneCore *lc, eXosip_event_t *ev){
int code=osip_message_get_status_code(ev->response);
char *contact=NULL;
osip_contact_t *ct;
osip_message_get_contact(ev->response,0,&ct);
if (ct) osip_contact_to_str(ct,&contact);
switch(code){
case 380:
lc->vtable.display_url(lc,_("User is not reachable at the moment but he invites you\nto contact him using the following alternate resource:"),contact);
if (lc->call!=NULL) linphone_call_destroy(lc->call);
lc->call=NULL;
break;
case 302:
linphone_do_automatic_redirect(lc,contact);
break;
}
if (contact) osip_free(contact);
}
/* these are the SdpHandler callbacks: we are called in to be aware of the content
of the SDP messages exchanged */
int linphone_set_audio_offer(sdp_context_t *ctx)
{
LinphoneCall *call=(LinphoneCall*)sdp_context_get_user_pointer(ctx);
LinphoneCore *lc=call->core;
PayloadType *codec;
MSList *elem;
sdp_payload_t payload;
elem=lc->codecs_conf.audio_codecs;
while(elem!=NULL){
codec=(PayloadType*) elem->data;
if (linphone_core_check_payload_type_usability(lc,codec) && payload_type_enabled(codec)){
sdp_payload_init(&payload);
payload.a_rtpmap=ortp_strdup_printf("%s/%i/1",codec->mime_type,codec->clock_rate);
payload.pt=rtp_profile_get_payload_number_from_rtpmap(lc->local_profile,payload.a_rtpmap);
payload.localport=call->audio_params.natd_port > 0 ?
call->audio_params.natd_port : lc->rtp_conf.audio_rtp_port;
if (strcasecmp(codec->mime_type,"iLBC")==0){
/* prefer the 30 ms mode */
payload.a_fmtp="ptime=30";
}
sdp_context_add_audio_payload(ctx,&payload);
ms_free(payload.a_rtpmap);
}
elem=ms_list_next(elem);
}
/* add telephone-event payload*/
sdp_payload_init(&payload);
payload.pt=rtp_profile_get_payload_number_from_mime(lc->local_profile,"telephone-event");
payload.a_rtpmap="telephone-event/8000";
payload.a_fmtp="0-11";
if (lc->dw_audio_bw>0) payload.b_as_bandwidth=lc->dw_audio_bw;
sdp_context_add_audio_payload(ctx,&payload);
return 0;
}
491492493494495496497498499500501502503504505506507508509510511512513514515516517518519520521522523524525526527528529530531532533534535536537538539540541542543544545546547548549550551552553554555556557558559560
static int find_payload_type_number(RtpProfile *prof, PayloadType *pt){
int candidate=-1,i;
PayloadType *it;
for(i=0;i<127;++i){
it=rtp_profile_get_payload(prof,i);
if (it!=NULL && strcasecmp(pt->mime_type,it->mime_type)==0
&& (pt->clock_rate==it->clock_rate || pt->clock_rate<=0) ){
if ( (pt->recv_fmtp && it->recv_fmtp && strcasecmp(pt->recv_fmtp,it->recv_fmtp)==0) ||
(pt->recv_fmtp==NULL && it->recv_fmtp==NULL) ){
/*exact match*/
return i;
}else candidate=i;
}
}
if (candidate==-1) ms_fatal("Should not happen.");
return candidate;
}
static int find_payload_type_number_best_match(RtpProfile *prof, const char *rtpmap, const char *fmtp){
int localpt=rtp_profile_get_payload_number_from_rtpmap(prof,rtpmap);
PayloadType *pt;
char value[10];
if (localpt<0) return -1;
pt=rtp_profile_get_payload(prof,localpt);
if (strcasecmp(pt->mime_type,"H264")==0){
/*hack for H264: need to answer with same packetization-mode*/
PayloadType tmp;
memset(&tmp,0,sizeof(tmp));
tmp.mime_type="H264";
tmp.clock_rate=pt->clock_rate;
if (fmtp && fmtp_get_value(fmtp,"packetization-mode",value,sizeof(value))){
tmp.recv_fmtp=(atoi(value)==1) ? "packetization-mode=1" : NULL;
}
localpt=find_payload_type_number(prof,&tmp);
}
return localpt;
}
int linphone_set_video_offer(sdp_context_t *ctx)
{
LinphoneCall *call=(LinphoneCall*)sdp_context_get_user_pointer(ctx);
LinphoneCore *lc=call->core;
PayloadType *codec;
MSList *elem;
bool_t firsttime=TRUE;
if (!linphone_core_video_enabled(lc)) return -1;
for(elem=lc->codecs_conf.video_codecs;elem!=NULL;elem=ms_list_next(elem)){
codec=(PayloadType*) elem->data;
if (linphone_core_check_payload_type_usability(lc,codec) && payload_type_enabled(codec)){
sdp_payload_t payload;
sdp_payload_init(&payload);
payload.line=1;
payload.a_rtpmap=ortp_strdup_printf("%s/%i",codec->mime_type,codec->clock_rate);
payload.localport=call->video_params.natd_port>0 ?
call->video_params.natd_port : lc->rtp_conf.video_rtp_port;
payload.pt=find_payload_type_number(lc->local_profile,codec);
payload.a_fmtp=codec->recv_fmtp;
if(firsttime){
firsttime=FALSE;
if (lc->dw_video_bw>0)
payload.b_as_bandwidth=lc->dw_video_bw;
}
sdp_context_add_video_payload(ctx,&payload);
ms_free(payload.a_rtpmap);
}
}
return 0;
561562563564565566567568569570571572573574575576577578579580581582583584585586587588589590591592593594595596597598599600601602603604605606607608609610611612613614615616617618619620621622623624625626627628629630
}
typedef enum {
Unsupported,
Supported,
SupportedAndValid /* valid= the presence of this codec is enough to make a call */
}SupportLevel;
SupportLevel linphone_payload_is_supported(LinphoneCore *lc, sdp_payload_t *payload,RtpProfile *local_profile,RtpProfile *dialog_profile, bool_t answering, PayloadType **local_payload_type)
{
int localpt;
SupportLevel ret;
if (payload->a_rtpmap!=NULL){
localpt=find_payload_type_number_best_match(local_profile,payload->a_rtpmap,payload->a_fmtp);
}else{
localpt=payload->pt;
ms_warning("payload has no rtpmap.");
}
if (localpt>=0 && localpt <128 ){
/* this payload is understood, but does the user want to use it ?? */
PayloadType *rtppayload;
rtppayload=rtp_profile_get_payload(local_profile,localpt);
if (rtppayload==NULL) {
ms_warning("strange error !!");
return Unsupported;
}
*local_payload_type=rtppayload;
if (strcmp(rtppayload->mime_type,"telephone-event")!=0){
if (answering && !linphone_core_check_payload_type_usability(lc,rtppayload) ){
ms_warning("payload %s is not usable",rtppayload->mime_type);
return Unsupported;
}
if ( !payload_type_enabled(rtppayload)) {
ms_warning("payload %s is not enabled.",rtppayload->mime_type);
return Unsupported;
}
ret=SupportedAndValid;
}else ret=Supported;
if (dialog_profile!=NULL){
int dbw,ubw;
/* this payload is supported in our local rtp profile, so add it to the dialog rtp
profile */
rtppayload=payload_type_clone(rtppayload);
if (rtp_profile_get_payload(dialog_profile,payload->pt)!=NULL){
ms_error("Payload %s type already entered, should not happen !",rtppayload->mime_type);
}
rtp_profile_set_payload(dialog_profile,payload->pt,rtppayload);
/* add to the rtp payload type some other parameters (bandwidth) */
if (rtppayload->type==PAYLOAD_VIDEO){
dbw=lc->dw_video_bw;
ubw=lc->up_video_bw;
}else{
dbw=lc->dw_audio_bw;
ubw=lc->up_audio_bw;
}
if (payload->b_as_bandwidth!=0){
ms_message("Remote bandwidth constraint: %i",payload->b_as_bandwidth);
/*obey to remote bandwidth constraint AND our own upbandwidth constraint*/
rtppayload->normal_bitrate=1000*get_min_bandwidth(
payload->b_as_bandwidth, ubw);
}else{
/*limit to upload bandwidth if exist, else no limit*/
if (ubw>0) rtppayload->normal_bitrate=1000*ubw;
else {
if (rtppayload->type!=PAYLOAD_VIDEO){
rtppayload->normal_bitrate=-1; /*allow speex to use maximum bitrate*/
}
}
}
631632633634635636637638639640641642643644645646647648649650651652653654655656657658659660661662663664665666667668669670671672673674675676677678679680681682683684685686687688689690691692693694695696697698699700
if (payload->a_fmtp!=NULL){
payload_type_set_send_fmtp(rtppayload,payload->a_fmtp);
}
payload->a_fmtp=rtppayload->recv_fmtp;
if (payload->a_ptime>0){
char tmp[30];
snprintf(tmp,sizeof(tmp),"ptime=%i",payload->a_ptime);
payload_type_append_send_fmtp(rtppayload,tmp);
ms_message("%s attribute added to fmtp",tmp);
}
}
return ret;
}
return Unsupported;
}
int linphone_accept_audio_offer(sdp_context_t *ctx,sdp_payload_t *payload)
{
RtpProfile *remote_profile;
StreamParams *params;
SupportLevel supported;
LinphoneCall *call=(LinphoneCall*)sdp_context_get_user_pointer(ctx);
LinphoneCore *lc=call->core;
PayloadType *lpt=NULL;
params=&call->audio_params;
remote_profile=call->profile;
/* see if this codec is supported in our local rtp profile*/
supported=linphone_payload_is_supported(lc,payload,lc->local_profile,remote_profile,TRUE,&lpt);
if (supported==Unsupported) {
ms_message("Refusing audio codec %i (%s)",payload->pt,payload->a_rtpmap);
return -1;
}
if (lc->sip_conf.only_one_codec && params->initialized){
ms_message("Only one codec has to be accepted.");
return -1;
}
if (supported==SupportedAndValid) {
if (params->initialized==0){
/* this is the first codec we accept, it is going to be used*/
params->localport=lc->rtp_conf.audio_rtp_port;
payload->localport=params->natd_port>0 ?
params->natd_port : lc->rtp_conf.audio_rtp_port;
params->line=payload->line;
params->pt=payload->pt; /* remember the first payload accepted */
if (payload->relay_host!=NULL){
strncpy(params->remoteaddr,payload->relay_host,sizeof(params->remoteaddr)-1);
params->remoteport=payload->relay_port;
params->remotertcpport=payload->relay_port;
params->relay_session_id=payload->relay_session_id;
}else{
strncpy(params->remoteaddr,payload->c_addr,sizeof(params->remoteaddr)-1);
params->remoteport=payload->remoteport;
params->remotertcpport=payload->remoteport+1;
}
params->initialized=1;
/* we can now update the allocated bandwidth for audio, and then video*/
linphone_core_update_allocated_audio_bandwidth_in_call(lc,lpt);
/* give our download bandwidth constraint*/
payload->b_as_bandwidth=(lc->dw_audio_bw>0) ? lc->dw_audio_bw : 0;
}else{
/* refuse all other audio lines*/
if(params->line!=payload->line) {
ms_message("Only one audio line can be accepted.");
#if !defined(_WIN32_WCE)
abort();
#endif /*_WIN32_WCE*/
return -1;
}
}
701702703704705706707708709710711712713714715716717718719720721722723724725726727728729730731732733734735736737738739740741742743744745746747748749750751752753754755756757758759760761762763764765766767768769770
}
return 0;
}
int linphone_accept_video_offer(sdp_context_t *ctx,sdp_payload_t *payload)
{
LinphoneCall *call=(LinphoneCall*)sdp_context_get_user_pointer(ctx);
LinphoneCore *lc=call->core;
RtpProfile *remote_profile;
StreamParams *params;
SupportLevel supported;
PayloadType *lpt=NULL;
if (!linphone_core_video_enabled(lc)) return -1;
if (payload->remoteport==0) {
ms_message("Video stream refused by remote.");
return 0;
}
params=&call->video_params;
remote_profile=call->profile;
/* see if this codec is supported in our local rtp profile*/
supported=linphone_payload_is_supported(lc,payload,lc->local_profile,remote_profile,TRUE,&lpt);
if (supported==Unsupported) {
ms_message("Refusing video codec %i (%s)",payload->pt,payload->a_rtpmap);
return -1;
}
if (lc->sip_conf.only_one_codec && params->initialized){
return -1;
}
if (supported==SupportedAndValid){
if (params->initialized==0){
/* this is the first codec we may accept*/
params->localport=lc->rtp_conf.video_rtp_port;
payload->localport=params->natd_port>0 ? params->natd_port : lc->rtp_conf.video_rtp_port;
params->line=payload->line;
params->pt=payload->pt; /* remember the first payload accepted */
if (payload->relay_host!=NULL){
strncpy(params->remoteaddr,payload->relay_host,sizeof(params->remoteaddr)-1);
params->remoteport=payload->relay_port;
params->remotertcpport=payload->relay_port;
params->relay_session_id=payload->relay_session_id;
}else{
strncpy(params->remoteaddr,payload->c_addr,sizeof(params->remoteaddr)-1);
params->remoteport=payload->remoteport;
params->remotertcpport=params->remoteport+1;
}
params->initialized=1;
payload->b_as_bandwidth=(lc->dw_video_bw>0) ? lc->dw_video_bw : 0;
}else{
/* refuse all other video lines*/
if(params->line!=payload->line) return -1;
}
}
return 0;
}
int linphone_read_audio_answer(sdp_context_t *ctx,sdp_payload_t *payload)
{
LinphoneCall *call=(LinphoneCall*)sdp_context_get_user_pointer(ctx);
LinphoneCore *lc=call->core;
StreamParams *params;
SupportLevel supported;
PayloadType *lpt=NULL;
/* paranoid check: see if this codec is supported in our local rtp profile*/
supported=linphone_payload_is_supported(lc, payload,lc->local_profile,call->profile,FALSE,&lpt);
if (supported==Unsupported) {
ms_warning("This remote sip phone did not answer properly to my sdp offer: rtpmap=%s",payload->a_rtpmap);
771772773774775776777778779780781782783784785786787788789790791792793794795796797798799800801802803804805806807808809810811812813814815816817818819820821822823824825826827828829830831832833834835836837838839840
return 0;
}
if (supported==SupportedAndValid){
params=&call->audio_params;
if (params->initialized==0){
/* this is the first codec we accept, this is the one that is going to be used (at least for sending
data.*/
params->localport=lc->rtp_conf.audio_rtp_port;
params->line=payload->line;
params->pt=payload->pt; /* remember the first payload accepted */
if (payload->relay_host!=NULL){
strncpy(params->remoteaddr,payload->relay_host,sizeof(params->remoteaddr)-1);
params->remoteport=payload->relay_port;
params->remotertcpport=payload->relay_port;
params->relay_session_id=payload->relay_session_id;
}else{
strncpy(params->remoteaddr,payload->c_addr,sizeof(params->remoteaddr)-1);
params->remoteport=payload->remoteport;
params->remotertcpport=payload->remoteport+1;
}
params->initialized=1;
/* we can now update the allocated bandwidth for audio, and then video*/
linphone_core_update_allocated_audio_bandwidth_in_call(lc,lpt);
}
}
return 0;
}
int linphone_read_video_answer(sdp_context_t *ctx,sdp_payload_t *payload)
{
LinphoneCall *call=(LinphoneCall*)sdp_context_get_user_pointer(ctx);
LinphoneCore *lc=call->core;
StreamParams *params;
SupportLevel supported;
PayloadType *lpt=NULL;
/* paranoid check: see if this codec is supported in our local rtp profile*/
supported=linphone_payload_is_supported(lc, payload,lc->local_profile,call->profile,FALSE,&lpt);
if (supported==Unsupported) {
ms_warning("This remote sip phone did not answer properly to my sdp offer: rtpmap=%s",payload->a_rtpmap);
return 0;
}
if (supported==SupportedAndValid){
params=&call->video_params;
if (params->initialized==0){
/* this is the first codec we may accept*/
params->localport=lc->rtp_conf.video_rtp_port;
params->line=payload->line;
params->pt=payload->pt; /* remember the first payload accepted */
if (payload->relay_host!=NULL){
strncpy(params->remoteaddr,payload->relay_host,sizeof(params->remoteaddr)-1);
params->remoteport=payload->relay_port;
params->remotertcpport=payload->relay_port;
params->relay_session_id=payload->relay_session_id;
}else{
strncpy(params->remoteaddr,payload->c_addr,sizeof(params->remoteaddr)-1);
params->remoteport=payload->remoteport;
params->remotertcpport=payload->remoteport+1;
}
params->initialized=1;
}
}
return 0;
}
void linphone_call_ringing(LinphoneCore *lc, eXosip_event_t *ev){
sdp_message_t *sdp=eXosip_get_sdp_info(ev->response);
LinphoneCall *call=lc->call;
lc->vtable.display_status(lc,_("Remote ringing."));
841842843844845846847848849850851852853854855856857858859860861862863864865866867868869870871872873874875876877878879880881882883884885886887888889890891892893894895896897898899900901902903904905906907908909910
linphone_call_proceeding(lc,ev);
if (call==NULL) return;
if (sdp==NULL){
if (lc->ringstream!=NULL) return; /*already ringing !*/
if (lc->sound_conf.play_sndcard!=NULL){
ms_message("Remote ringing...");
lc->ringstream=ring_start(lc->sound_conf.remote_ring,2000,lc->sound_conf.play_sndcard);
}
}else{
/*accept early media */
StreamParams *audio_params;
if (call==NULL){
ms_error("No call ?");
goto end;
}
if (lc->audiostream->ticker!=NULL){
/*streams already started */
ms_message("Early media already started.");
goto end;
}
audio_params=&call->audio_params;
sdp_context_read_answer(lc->call->sdpctx,sdp);
lc->vtable.show(lc);
lc->vtable.display_status(lc,_("Early media."));
gstate_new_state(lc, GSTATE_CALL_OUT_CONNECTED, NULL);
if (lc->ringstream!=NULL){
ring_stop(lc->ringstream);
lc->ringstream=NULL;
}
ms_message("Doing early media...");
linphone_core_start_media_streams(lc,call);
}
call->state=LCStateRinging;
goto end;
end:
sdp_message_free(sdp);
}
static void linphone_process_media_control_xml(LinphoneCore *lc, eXosip_event_t *ev){
osip_body_t *body=NULL;
osip_message_get_body(ev->request,0,&body);
if (body && body->body!=NULL &&
strstr(body->body,"picture_fast_update")){
osip_message_t *ans=NULL;
ms_message("Receiving VFU request !");
#ifdef VIDEO_ENABLED
if (lc->videostream)
video_stream_send_vfu(lc->videostream);
#endif
eXosip_call_build_answer(ev->tid,200,&ans);
if (ans)
eXosip_call_send_answer(ev->tid,200,ans);
}
}
static void linphone_process_dtmf_relay(LinphoneCore *lc, eXosip_event_t *ev){
osip_body_t *body=NULL;
osip_message_get_body(ev->request,0,&body);
if (body && body->body!=NULL){
osip_message_t *ans=NULL;
const char *name=strstr(body->body,"Signal");
if (name==NULL) name=strstr(body->body,"signal");
if (name==NULL) {
ms_warning("Could not extract the dtmf name from the SIP INFO.");
}else{
char tmp[2];
name+=strlen("signal");
if (sscanf(name," = %1s",tmp)==1){
ms_message("Receiving dtmf %s via SIP INFO.",tmp);
911912913914915916917918919920921922923924925926927928929930931932933934935936937938939940941942943944945946947948949950951952953954955956957958959960961962963964965966967968969970971972973974975976977978979980
if (lc->vtable.dtmf_received != NULL)
lc->vtable.dtmf_received(lc, tmp[0]);
}
}
eXosip_call_build_answer(ev->tid,200,&ans);
if (ans)
eXosip_call_send_answer(ev->tid,200,ans);
}
}
void linphone_call_message_new(LinphoneCore *lc, eXosip_event_t *ev){
osip_message_t *ans=NULL;
if (ev->request){
if (MSG_IS_INFO(ev->request)){
osip_content_type_t *ct;
ct=osip_message_get_content_type(ev->request);
if (ct && ct->subtype){
if (strcmp(ct->subtype,"media_control+xml")==0)
linphone_process_media_control_xml(lc,ev);
else if (strcmp(ct->subtype,"dtmf-relay")==0)
linphone_process_dtmf_relay(lc,ev);
else {
ms_message("Unhandled SIP INFO.");
/*send an "Not implemented" answer*/
eXosip_call_build_answer(ev->tid,501,&ans);
if (ans)
eXosip_call_send_answer(ev->tid,501,ans);
}
}else{
/*empty SIP INFO, probably to test we are alive. Send an empty answer*/
eXosip_call_build_answer(ev->tid,200,&ans);
if (ans)
eXosip_call_send_answer(ev->tid,200,ans);
}
}
}else ms_warning("linphone_call_message_new: No request ?");
}
void linphone_registration_faillure(LinphoneCore *lc, eXosip_event_t *ev){
int status_code=0;
char *msg;
const char *reason=NULL;
osip_uri_t *requri=osip_message_get_uri(ev->request);
char *ru;
LinphoneProxyConfig *cfg;
if (ev->response){
status_code=osip_message_get_status_code(ev->response);
reason=osip_message_get_reason_phrase(ev->response);
}
switch(status_code){
case 401:
case 407:
linphone_process_authentication(lc,ev);
break;
default:
cfg=linphone_core_get_proxy_config_from_rid(lc,ev->rid);
/* if contact is up to date, process the failure, otherwise resend a new register with
updated contact first, just in case the faillure is due to incorrect contact */
if (linphone_proxy_config_register_again_with_updated_contact(cfg,ev->request,ev->response))
return; /*we are retrying with an updated contact*/
if (status_code==403) linphone_proxy_config_process_authentication_failure(lc,ev);
osip_uri_to_str(requri,&ru);
msg=ortp_strdup_printf(_("Registration on %s failed: %s"),ru,(reason!=NULL) ? reason : _("no response timeout"));
lc->vtable.display_status(lc,msg);
gstate_new_state(lc, GSTATE_REG_FAILED, msg);
ms_free(msg);
osip_free(ru);
}
981982983984985986987988989990991992993994995996997998999100010011002100310041005100610071008100910101011101210131014101510161017101810191020102110221023102410251026102710281029103010311032103310341035103610371038103910401041104210431044104510461047104810491050
}
void linphone_registration_success(LinphoneCore *lc,eXosip_event_t *ev){
LinphoneProxyConfig *cfg;
osip_uri_t *requri=osip_message_get_uri(ev->request);
char *msg;
char *ru;
osip_header_t *h=NULL;
cfg=linphone_core_get_proxy_config_from_rid(lc,ev->rid);
ms_return_if_fail(cfg!=NULL);
gstate_new_state(lc, GSTATE_REG_OK, NULL);
osip_message_get_expires(ev->request,0,&h);
if (h!=NULL && atoi(h->hvalue)!=0){
cfg->registered=TRUE;
linphone_proxy_config_register_again_with_updated_contact(cfg,ev->request,ev->response);
}else cfg->registered=FALSE;
osip_uri_to_str(requri,&ru);
if (cfg->registered) msg=ms_strdup_printf(_("Registration on %s successful."),ru);
else msg=ms_strdup_printf(_("Unregistration on %s done."),ru);
lc->vtable.display_status(lc,msg);
ms_free(msg);
osip_free(ru);
}
static bool_t comes_from_local_if(osip_message_t *msg){
osip_via_t *via=NULL;
osip_message_get_via(msg,0,&via);
if (via){
const char *host;
host=osip_via_get_host(via);
if (strcmp(host,"127.0.0.1")==0 || strcmp(host,"::1")==0){
osip_generic_param_t *param=NULL;
osip_via_param_get_byname(via,"received",¶m);
if (param==NULL) return TRUE;
if (param->gvalue &&
(strcmp(param->gvalue,"127.0.0.1")==0 || strcmp(param->gvalue,"::1")==0)){
return TRUE;
}
}
}
return FALSE;
}
static void linphone_inc_update(LinphoneCore *lc, eXosip_event_t *ev){
osip_message_t *msg=NULL;
ms_message("Processing incoming UPDATE");
eXosip_lock();
eXosip_message_build_answer(ev->tid,200,&msg);
if (msg!=NULL)
eXosip_message_send_answer(ev->tid,200,msg);
eXosip_unlock();
}
static void linphone_other_request(LinphoneCore *lc, eXosip_event_t *ev){
ms_message("in linphone_other_request");
if (ev->request==NULL) return;
if (strcmp(ev->request->sip_method,"MESSAGE")==0){
linphone_core_text_received(lc,ev);
eXosip_message_send_answer(ev->tid,200,NULL);
}else if (strcmp(ev->request->sip_method,"OPTIONS")==0){
osip_message_t *options=NULL;
eXosip_options_build_answer(ev->tid,200,&options);
osip_message_set_allow(options,"INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, SUBSCRIBE, NOTIFY, INFO");
osip_message_set_accept(options,"application/sdp");
eXosip_options_send_answer(ev->tid,200,options);
}else if (strcmp(ev->request->sip_method,"WAKEUP")==0
&& comes_from_local_if(ev->request)) {
1051105210531054105510561057105810591060106110621063106410651066106710681069107010711072107310741075107610771078107910801081108210831084108510861087108810891090109110921093109410951096109710981099110011011102110311041105110611071108110911101111111211131114111511161117111811191120
eXosip_message_send_answer(ev->tid,200,NULL);
ms_message("Receiving WAKEUP request !");
if (lc->vtable.show)
lc->vtable.show(lc);
}else if (strncmp(ev->request->sip_method, "REFER", 5) == 0){
ms_message("Receiving REFER request !");
if (comes_from_local_if(ev->request)) {
osip_header_t *h=NULL;
osip_message_header_get_byname(ev->request,"Refer-To",0,&h);
eXosip_message_send_answer(ev->tid,200,NULL);
if (h){
if (lc->vtable.refer_received)
lc->vtable.refer_received(lc,h->hvalue);
}
}else ms_warning("Ignored REFER not coming from this local loopback interface.");
}else if (strncmp(ev->request->sip_method, "UPDATE", 6) == 0){
linphone_inc_update(lc,ev);
}else {
char *tmp=NULL;
size_t msglen=0;
osip_message_to_str(ev->request,&tmp,&msglen);
if (tmp){
ms_message("Unsupported request received:\n%s",tmp);
osip_free(tmp);
}
/*answer with a 501 Not implemented*/
eXosip_message_send_answer(ev->tid,501,NULL);
}
}
void linphone_core_process_event(LinphoneCore *lc,eXosip_event_t *ev)
{
switch(ev->type){
case EXOSIP_CALL_ANSWERED:
ms_message("CALL_ANSWERED\n");
linphone_call_accepted(lc,ev);
linphone_authentication_ok(lc,ev);
break;
case EXOSIP_CALL_CLOSED:
case EXOSIP_CALL_CANCELLED:
ms_message("CALL_CLOSED or CANCELLED\n");
linphone_call_terminated(lc,ev);
break;
case EXOSIP_CALL_TIMEOUT:
case EXOSIP_CALL_NOANSWER:
ms_message("CALL_TIMEOUT or NOANSWER\n");
linphone_call_failure(lc,ev);
break;
case EXOSIP_CALL_REQUESTFAILURE:
case EXOSIP_CALL_GLOBALFAILURE:
case EXOSIP_CALL_SERVERFAILURE:
ms_message("CALL_REQUESTFAILURE or GLOBALFAILURE or SERVERFAILURE\n");
linphone_call_failure(lc,ev);
break;
case EXOSIP_CALL_INVITE:
ms_message("CALL_NEW\n");
/* CALL_NEW is used twice in qos mode :
* when you receive invite (textinfo = "With QoS" or "Without QoS")
* and when you receive update (textinfo = "New Call") */
linphone_inc_new_call(lc,ev);
break;
case EXOSIP_CALL_REINVITE:
linphone_handle_reinvite(lc,ev);
break;
case EXOSIP_CALL_ACK:
ms_message("CALL_ACK");
linphone_handle_ack(lc,ev);
break;
case EXOSIP_CALL_REDIRECTED:
1121112211231124112511261127112811291130113111321133113411351136113711381139114011411142114311441145114611471148114911501151115211531154115511561157115811591160116111621163116411651166116711681169117011711172117311741175117611771178117911801181118211831184118511861187
ms_message("CALL_REDIRECTED");
linphone_call_redirected(lc,ev);
break;
case EXOSIP_CALL_PROCEEDING:
ms_message("CALL_PROCEEDING");
linphone_call_proceeding(lc,ev);
break;
case EXOSIP_CALL_RINGING:
ms_message("CALL_RINGING");
linphone_call_ringing(lc,ev);
break;
case EXOSIP_CALL_MESSAGE_NEW:
ms_message("EXOSIP_CALL_MESSAGE_NEW");
linphone_call_message_new(lc,ev);
break;
case EXOSIP_CALL_MESSAGE_REQUESTFAILURE:
if (ev->did<0 && ev->response &&
(ev->response->status_code==407 || ev->response->status_code==401)){
eXosip_default_action(ev);
}
break;
case EXOSIP_IN_SUBSCRIPTION_NEW:
ms_message("CALL_SUBSCRIPTION_NEW or UPDATE");
linphone_subscription_new(lc,ev);
break;
case EXOSIP_SUBSCRIPTION_UPDATE:
break;
case EXOSIP_SUBSCRIPTION_NOTIFY:
ms_message("CALL_SUBSCRIPTION_NOTIFY");
linphone_notify_recv(lc,ev);
break;
case EXOSIP_SUBSCRIPTION_ANSWERED:
ms_message("EXOSIP_SUBSCRIPTION_ANSWERED, ev->sid=%i\n",ev->sid);
linphone_subscription_answered(lc,ev);
break;
case EXOSIP_SUBSCRIPTION_CLOSED:
ms_message("EXOSIP_SUBSCRIPTION_CLOSED\n");
linphone_subscription_closed(lc,ev);
break;
case EXOSIP_CALL_RELEASED:
ms_message("CALL_RELEASED\n");
linphone_call_released(lc, ev->cid);
break;
case EXOSIP_REGISTRATION_FAILURE:
ms_message("REGISTRATION_FAILURE\n");
linphone_registration_faillure(lc,ev);
break;
case EXOSIP_REGISTRATION_SUCCESS:
linphone_authentication_ok(lc,ev);
linphone_registration_success(lc,ev);
break;
case EXOSIP_MESSAGE_NEW:
linphone_other_request(lc,ev);
break;
case EXOSIP_MESSAGE_REQUESTFAILURE:
if (ev->response && (ev->response->status_code == 407 || ev->response->status_code == 401)){
/*the user is expected to have registered to the proxy, thus password is known*/
eXosip_default_action(ev);
}
break;
default:
ms_message("Unhandled exosip event !");
break;
}
eXosip_event_free(ev);
}