linphone-ios/coreapi/callbacks.c
Simon Morlat 16180e2430 change the way payload type numbers are assigned, so that an application can support more payload type than the RTP profile table allows to contain.
Compliance with RFC3264 (offer answer model) is improved, by reusing numbers in case of reINVITEs.
Fix memory leaks
Move offer/answer related tests into a new test suite.
2015-01-21 22:38:46 +01:00

1334 lines
48 KiB
C

/*
linphone
Copyright (C) 2010 Simon MORLAT (simon.morlat@free.fr)
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of 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 of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include "sal/sal.h"
#include "linphonecore.h"
#include "private.h"
#include "mediastreamer2/mediastream.h"
#include "lpconfig.h"
// stat
#ifndef WIN32
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#endif
static void register_failure(SalOp *op);
static int media_parameters_changed(LinphoneCall *call, SalMediaDescription *oldmd, SalMediaDescription *newmd) {
if (call->params->in_conference != call->current_params->in_conference) return SAL_MEDIA_DESCRIPTION_CHANGED;
if (call->up_bw != linphone_core_get_upload_bandwidth(call->core)) return SAL_MEDIA_DESCRIPTION_CHANGED;
if (call->localdesc_changed) ms_message("Local description has changed: %i", call->localdesc_changed);
return call->localdesc_changed | sal_media_description_equals(oldmd, newmd);
}
void linphone_core_update_streams_destinations(LinphoneCore *lc, LinphoneCall *call, SalMediaDescription *old_md, SalMediaDescription *new_md) {
SalStreamDescription *new_audiodesc = NULL;
SalStreamDescription *new_videodesc = NULL;
char *rtp_addr, *rtcp_addr;
int i;
for (i = 0; i < new_md->nb_streams; i++) {
if (!sal_stream_description_active(&new_md->streams[i])) continue;
if (new_md->streams[i].type == SalAudio) {
new_audiodesc = &new_md->streams[i];
} else if (new_md->streams[i].type == SalVideo) {
new_videodesc = &new_md->streams[i];
}
}
if (call->audiostream && new_audiodesc) {
rtp_addr = (new_audiodesc->rtp_addr[0] != '\0') ? new_audiodesc->rtp_addr : new_md->addr;
rtcp_addr = (new_audiodesc->rtcp_addr[0] != '\0') ? new_audiodesc->rtcp_addr : new_md->addr;
ms_message("Change audio stream destination: RTP=%s:%d RTCP=%s:%d", rtp_addr, new_audiodesc->rtp_port, rtcp_addr, new_audiodesc->rtcp_port);
rtp_session_set_remote_addr_full(call->audiostream->ms.sessions.rtp_session, rtp_addr, new_audiodesc->rtp_port, rtcp_addr, new_audiodesc->rtcp_port);
}
#ifdef VIDEO_ENABLED
if (call->videostream && new_videodesc) {
rtp_addr = (new_videodesc->rtp_addr[0] != '\0') ? new_videodesc->rtp_addr : new_md->addr;
rtcp_addr = (new_videodesc->rtcp_addr[0] != '\0') ? new_videodesc->rtcp_addr : new_md->addr;
ms_message("Change video stream destination: RTP=%s:%d RTCP=%s:%d", rtp_addr, new_videodesc->rtp_port, rtcp_addr, new_videodesc->rtcp_port);
rtp_session_set_remote_addr_full(call->videostream->ms.sessions.rtp_session, rtp_addr, new_videodesc->rtp_port, rtcp_addr, new_videodesc->rtcp_port);
}
#else
(void)new_videodesc;
#endif
}
static void _clear_early_media_destinations(LinphoneCall *call, MediaStream *ms){
RtpSession *session=ms->sessions.rtp_session;
rtp_session_clear_aux_remote_addr(session);
if (!call->ice_session) rtp_session_set_symmetric_rtp(session,TRUE);/*restore symmetric rtp if ICE is not used*/
}
static void clear_early_media_destinations(LinphoneCall *call){
if (call->audiostream){
_clear_early_media_destinations(call,(MediaStream*)call->audiostream);
}
if (call->videostream){
_clear_early_media_destinations(call,(MediaStream*)call->videostream);
}
}
static void prepare_early_media_forking(LinphoneCall *call){
/*we need to disable symmetric rtp otherwise our outgoing streams will be switching permanently between the multiple destinations*/
if (call->audiostream){
rtp_session_set_symmetric_rtp(call->audiostream->ms.sessions.rtp_session,FALSE);
}
if (call->videostream){
rtp_session_set_symmetric_rtp(call->videostream->ms.sessions.rtp_session,FALSE);
}
}
void linphone_call_update_frozen_payloads(LinphoneCall *call, SalMediaDescription *result_desc){
SalMediaDescription *local=call->localdesc;
int i;
for(i=0;i<result_desc->nb_streams;++i){
MSList *elem;
for (elem=result_desc->streams[i].payloads;elem!=NULL;elem=elem->next){
PayloadType *pt=(PayloadType*)elem->data;
if (is_payload_type_number_available(local->streams[i].already_assigned_payloads, payload_type_get_number(pt), NULL)){
/*new codec, needs to be added to the list*/
local->streams[i].already_assigned_payloads=ms_list_append(local->streams[i].already_assigned_payloads, payload_type_clone(pt));
ms_message("LinphoneCall[%p] : payload type %i %s/%i fmtp=%s added to frozen list.",
call, payload_type_get_number(pt), pt->mime_type, pt->clock_rate, pt->recv_fmtp ? pt->recv_fmtp : NULL);
}
}
}
}
void linphone_core_update_streams(LinphoneCore *lc, LinphoneCall *call, SalMediaDescription *new_md){
SalMediaDescription *oldmd=call->resultdesc;
bool_t all_muted=FALSE;
bool_t send_ringbacktone=FALSE;
linphone_core_stop_ringing(lc);
if (!new_md) {
ms_error("linphone_core_update_streams() called with null media description");
return;
}
if (call->biggestdesc==NULL || new_md->nb_streams>call->biggestdesc->nb_streams){
/*we have been offered and now are ready to proceed, or we added a new stream*/
/*store the media description to remember the mapping of calls*/
if (call->biggestdesc){
sal_media_description_unref(call->biggestdesc);
call->biggestdesc=NULL;
}
if (sal_call_is_offerer(call->op))
call->biggestdesc=sal_media_description_ref(call->localdesc);
else
call->biggestdesc=sal_media_description_ref(sal_call_get_remote_media_description(call->op));
}
sal_media_description_ref(new_md);
call->expect_media_in_ack=FALSE;
call->resultdesc=new_md;
if ((call->audiostream && call->audiostream->ms.state==MSStreamStarted) || (call->videostream && call->videostream->ms.state==MSStreamStarted)){
clear_early_media_destinations(call);
/* we already started media: check if we really need to restart it*/
if (oldmd){
int md_changed = media_parameters_changed(call, oldmd, new_md);
if ((md_changed & SAL_MEDIA_DESCRIPTION_CODEC_CHANGED) || call->playing_ringbacktone) {
ms_message("Media descriptions are different, need to restart the streams.");
} else {
if (md_changed == SAL_MEDIA_DESCRIPTION_UNCHANGED) {
if (call->all_muted){
ms_message("Early media finished, unmuting inputs...");
/*we were in early media, now we want to enable real media */
linphone_call_enable_camera (call,linphone_call_camera_enabled (call));
if (call->audiostream)
linphone_core_enable_mic(lc, linphone_core_mic_enabled(lc));
#ifdef VIDEO_ENABLED
if (call->videostream && call->camera_enabled)
video_stream_change_camera(call->videostream,lc->video_conf.device );
#endif
}
/*FIXME ZRTP, might be restarted in any cases ? */
ms_message("No need to restart streams, SDP is unchanged.");
goto end;
}else {
if (md_changed & SAL_MEDIA_DESCRIPTION_NETWORK_CHANGED) {
ms_message("Network parameters have changed, update them.");
linphone_core_update_streams_destinations(lc, call, oldmd, new_md);
}
if (md_changed & SAL_MEDIA_DESCRIPTION_CRYPTO_KEYS_CHANGED) {
ms_message("Crypto parameters have changed, update them.");
linphone_call_update_crypto_parameters(call, oldmd, new_md);
}
goto end;
}
}
}
linphone_call_stop_media_streams (call);
linphone_call_init_media_streams (call);
}
if (call->audiostream==NULL){
/*this happens after pausing the call locally. The streams are destroyed and then we wait the 200Ok to recreate them*/
linphone_call_init_media_streams (call);
}
if (call->state==LinphoneCallIncomingEarlyMedia && linphone_core_get_remote_ringback_tone (lc)!=NULL){
send_ringbacktone=TRUE;
}
if ((call->state==LinphoneCallIncomingEarlyMedia || call->state==LinphoneCallOutgoingEarlyMedia) && !call->params->real_early_media){
all_muted=TRUE;
}
if (call->params->real_early_media && call->state==LinphoneCallOutgoingEarlyMedia){
prepare_early_media_forking(call);
}
linphone_call_start_media_streams(call,all_muted,send_ringbacktone);
if (call->state==LinphoneCallPausing && call->paused_by_app && ms_list_size(lc->calls)==1){
linphone_core_play_named_tone(lc,LinphoneToneCallOnHold);
}
linphone_call_update_frozen_payloads(call, new_md);
end:
if (oldmd)
sal_media_description_unref(oldmd);
}
#if 0
static bool_t is_duplicate_call(LinphoneCore *lc, const LinphoneAddress *from, const LinphoneAddress *to){
MSList *elem;
for(elem=lc->calls;elem!=NULL;elem=elem->next){
LinphoneCall *call=(LinphoneCall*)elem->data;
if (linphone_address_weak_equal(call->log->from,from) &&
linphone_address_weak_equal(call->log->to, to)){
return TRUE;
}
}
return FALSE;
}
#endif
static bool_t already_a_call_with_remote_address(const LinphoneCore *lc, const LinphoneAddress *remote) {
MSList *elem;
ms_warning(" searching for already_a_call_with_remote_address.");
for(elem=lc->calls;elem!=NULL;elem=elem->next){
const LinphoneCall *call=(LinphoneCall*)elem->data;
const LinphoneAddress *cRemote=linphone_call_get_remote_address(call);
if (linphone_address_weak_equal(cRemote,remote)) {
ms_warning("already_a_call_with_remote_address found.");
return TRUE;
}
}
return FALSE;
}
static bool_t already_a_call_pending(LinphoneCore *lc){
MSList *elem;
for(elem=lc->calls;elem!=NULL;elem=elem->next){
LinphoneCall *call=(LinphoneCall*)elem->data;
if (call->state==LinphoneCallIncomingReceived
|| call->state==LinphoneCallIncomingEarlyMedia
|| call->state==LinphoneCallOutgoingInit
|| call->state==LinphoneCallOutgoingProgress
|| call->state==LinphoneCallOutgoingEarlyMedia
|| call->state==LinphoneCallOutgoingRinging
|| call->state==LinphoneCallIdle){ /*case of an incoming call for which ICE candidate gathering is pending.*/
return TRUE;
}
}
return FALSE;
}
static void call_received(SalOp *h){
LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(h));
LinphoneCall *call;
char *alt_contact;
LinphoneAddress *from_addr=NULL;
LinphoneAddress *to_addr=NULL;
/*this mode is deprcated because probably useless*/
bool_t prevent_colliding_calls=lp_config_get_int(lc->config,"sip","prevent_colliding_calls",FALSE);
SalMediaDescription *md;
/* first check if we can answer successfully to this invite */
if (linphone_presence_model_get_basic_status(lc->presence_model) == LinphonePresenceBasicStatusClosed) {
LinphonePresenceActivity *activity = linphone_presence_model_get_activity(lc->presence_model);
switch (linphone_presence_activity_get_type(activity)) {
case LinphonePresenceActivityBusy:
sal_call_decline(h,SalReasonBusy,NULL);
break;
case LinphonePresenceActivityAppointment:
case LinphonePresenceActivityMeeting:
case LinphonePresenceActivityOffline:
case LinphonePresenceActivityWorship:
sal_call_decline(h,SalReasonTemporarilyUnavailable,NULL);
break;
case LinphonePresenceActivityPermanentAbsence:
alt_contact = linphone_presence_model_get_contact(lc->presence_model);
if (alt_contact != NULL) {
sal_call_decline(h,SalReasonRedirect,alt_contact);
ms_free(alt_contact);
}
break;
default:
break;
}
sal_op_release(h);
return;
}
if (!linphone_core_can_we_add_call(lc)){/*busy*/
sal_call_decline(h,SalReasonBusy,NULL);
sal_op_release(h);
return;
}
/*in some situation, better to trust the network rather than the UAC*/
if (lp_config_get_int(lc->config,"sip","call_logs_use_asserted_id_instead_of_from",0)) {
const char * p_asserted_id = sal_custom_header_find(sal_op_get_recv_custom_header(h),"P-Asserted-Identity");
LinphoneAddress *p_asserted_id_addr;
if (!p_asserted_id) {
ms_warning("No P-Asserted-Identity header found so cannot use it for op [%p] instead of from",h);
} else {
p_asserted_id_addr = linphone_address_new(p_asserted_id);
if (!p_asserted_id_addr) {
ms_warning("Unsupported P-Asserted-Identity header for op [%p] ",h);
} else {
ms_message("Using P-Asserted-Identity [%s] instead of from [%s] for op [%p]",p_asserted_id,sal_op_get_from(h),h);
from_addr=p_asserted_id_addr;
}
}
}
if (!from_addr)
from_addr=linphone_address_new(sal_op_get_from(h));
to_addr=linphone_address_new(sal_op_get_to(h));
if ((already_a_call_with_remote_address(lc,from_addr) && prevent_colliding_calls) || already_a_call_pending(lc)){
ms_warning("Receiving another call while one is ringing or initiated, refusing this one with busy message.");
sal_call_decline(h,SalReasonBusy,NULL);
sal_op_release(h);
linphone_address_destroy(from_addr);
linphone_address_destroy(to_addr);
return;
}
call=linphone_call_new_incoming(lc,from_addr,to_addr,h);
linphone_call_make_local_media_description(lc,call);
sal_call_set_local_media_description(call->op,call->localdesc);
md=sal_call_get_final_media_description(call->op);
if (md){
if (sal_media_description_empty(md) || linphone_core_incompatible_security(lc,md)){
sal_call_decline(call->op,SalReasonNotAcceptable,NULL);
linphone_call_unref(call);
return;
}
}
/* the call is acceptable so we can now add it to our list */
linphone_core_add_call(lc,call);
linphone_call_ref(call); /*prevent the call from being destroyed while we are notifying, if the user declines within the state callback */
if ((_linphone_core_get_firewall_policy(lc) == LinphonePolicyUseIce) && (call->ice_session != NULL)) {
/* Defer ringing until the end of the ICE candidates gathering process. */
ms_message("Defer ringing to gather ICE candidates");
return;
}
#ifdef BUILD_UPNP
if ((linphone_core_get_firewall_policy(lc) == LinphonePolicyUseUpnp) && (call->upnp_session != NULL)) {
/* Defer ringing until the end of the ICE candidates gathering process. */
ms_message("Defer ringing to gather uPnP candidates");
return;
}
#endif //BUILD_UPNP
linphone_core_notify_incoming_call(lc,call);
}
static void try_early_media_forking(LinphoneCall *call, SalMediaDescription *md){
SalMediaDescription *cur_md=call->resultdesc;
int i;
SalStreamDescription *ref_stream,*new_stream;
ms_message("Early media response received from another branch, checking if media can be forked to this new destination.");
for (i=0;i<cur_md->nb_streams;++i){
if (!sal_stream_description_active(&cur_md->streams[i])) continue;
ref_stream=&cur_md->streams[i];
new_stream=&md->streams[i];
if (ref_stream->type==new_stream->type && ref_stream->payloads && new_stream->payloads){
PayloadType *refpt, *newpt;
refpt=(PayloadType*)ref_stream->payloads->data;
newpt=(PayloadType*)new_stream->payloads->data;
if (strcmp(refpt->mime_type,newpt->mime_type)==0 && refpt->clock_rate==newpt->clock_rate
&& payload_type_get_number(refpt)==payload_type_get_number(newpt)){
MediaStream *ms=NULL;
if (ref_stream->type==SalAudio){
ms=(MediaStream*)call->audiostream;
}else if (ref_stream->type==SalVideo){
ms=(MediaStream*)call->videostream;
}
if (ms){
RtpSession *session=ms->sessions.rtp_session;
const char *rtp_addr=new_stream->rtp_addr[0]!='\0' ? new_stream->rtp_addr : md->addr;
const char *rtcp_addr=new_stream->rtcp_addr[0]!='\0' ? new_stream->rtcp_addr : md->addr;
rtp_session_add_aux_remote_addr_full(session,rtp_addr,new_stream->rtp_port,rtcp_addr,new_stream->rtcp_port);
}
}
}
}
}
static void call_ringing(SalOp *h){
LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(h));
LinphoneCall *call=(LinphoneCall*)sal_op_get_user_pointer(h);
SalMediaDescription *md;
if (call==NULL) return;
/*set privacy*/
call->current_params->privacy=(LinphonePrivacyMask)sal_op_get_privacy(call->op);
linphone_core_notify_display_status(lc,_("Remote ringing."));
md=sal_call_get_final_media_description(h);
if (md==NULL){
linphone_core_stop_dtmf_stream(lc);
if (call->state==LinphoneCallOutgoingEarlyMedia){
/*already doing early media */
return;
}
if (lc->ringstream!=NULL) return;/*already ringing !*/
if (lc->sound_conf.play_sndcard!=NULL){
MSSndCard *ringcard=lc->sound_conf.lsd_card ? lc->sound_conf.lsd_card : lc->sound_conf.play_sndcard;
if (call->localdesc->streams[0].max_rate>0) ms_snd_card_set_preferred_sample_rate(ringcard, call->localdesc->streams[0].max_rate);
/*we release sound before playing ringback tone*/
if (call->audiostream)
audio_stream_unprepare_sound(call->audiostream);
if( lc->sound_conf.remote_ring ){
lc->ringstream=ring_start(lc->sound_conf.remote_ring,2000,ringcard);
}
}
ms_message("Remote ringing...");
linphone_core_notify_display_status(lc,_("Remote ringing..."));
linphone_call_set_state(call,LinphoneCallOutgoingRinging,"Remote ringing");
}else{
/*accept early media */
if (call->audiostream && audio_stream_started(call->audiostream)){
/*streams already started */
try_early_media_forking(call,md);
return;
}
linphone_core_notify_show_interface(lc);
linphone_core_notify_display_status(lc,_("Early media."));
linphone_call_set_state(call,LinphoneCallOutgoingEarlyMedia,"Early media");
linphone_core_stop_ringing(lc);
ms_message("Doing early media...");
linphone_core_update_streams(lc,call,md);
}
}
/*
* could be reach :
* - when the call is accepted
* - when a request is accepted (pause, resume)
*/
static void call_accepted(SalOp *op){
LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
LinphoneCall *call=(LinphoneCall*)sal_op_get_user_pointer(op);
SalMediaDescription *md;
bool_t update_state=TRUE;
if (call==NULL){
ms_warning("No call to accept.");
return ;
}
/*set privacy*/
call->current_params->privacy=(LinphonePrivacyMask)sal_op_get_privacy(call->op);
/* Handle remote ICE attributes if any. */
if (call->ice_session != NULL) {
linphone_call_update_ice_from_remote_media_description(call, sal_call_get_remote_media_description(op));
}
#ifdef BUILD_UPNP
if (call->upnp_session != NULL) {
linphone_core_update_upnp_from_remote_media_description(call, sal_call_get_remote_media_description(op));
}
#endif //BUILD_UPNP
md=sal_call_get_final_media_description(op);
if (md) /*make sure re-invite will not propose video again*/
call->params->has_video &= linphone_core_media_description_contains_video_stream(md);
switch (call->state){
case LinphoneCallOutgoingProgress:
case LinphoneCallOutgoingRinging:
case LinphoneCallOutgoingEarlyMedia:
linphone_call_set_state(call,LinphoneCallConnected,"Connected");
if (call->referer) linphone_core_notify_refer_state(lc,call->referer,call);
break;
case LinphoneCallEarlyUpdating:
linphone_call_set_state(call,call->prevstate,"Early update accepted");
update_state=FALSE;
break;
default:
break;
}
if (md && !sal_media_description_empty(md) && !linphone_core_incompatible_security(lc,md)){
linphone_call_update_remote_session_id_and_ver(call);
if (sal_media_description_has_dir(md,SalStreamSendOnly) ||
sal_media_description_has_dir(md,SalStreamInactive)){
{
char *tmp=linphone_call_get_remote_address_as_string (call);
char *msg=ms_strdup_printf(_("Call with %s is paused."),tmp);
linphone_core_notify_display_status(lc,msg);
ms_free(tmp);
ms_free(msg);
}
linphone_core_update_streams (lc,call,md);
if (update_state) linphone_call_set_state(call,LinphoneCallPaused,"Call paused");
if (call->refer_pending)
linphone_core_start_refered_call(lc,call,NULL);
}else if (sal_media_description_has_dir(md,SalStreamRecvOnly)){
/*we are put on hold when the call is initially accepted */
{
char *tmp=linphone_call_get_remote_address_as_string (call);
char *msg=ms_strdup_printf(_("Call answered by %s - on hold."),tmp);
linphone_core_notify_display_status(lc,msg);
ms_free(tmp);
ms_free(msg);
}
linphone_core_update_streams (lc,call,md);
if (update_state) linphone_call_set_state(call,LinphoneCallPausedByRemote,"Call paused by remote");
}else{
if (call->state!=LinphoneCallUpdating){
if (call->state==LinphoneCallResuming){
linphone_core_notify_display_status(lc,_("Call resumed."));
}else{
{
char *tmp=linphone_call_get_remote_address_as_string (call);
char *msg=ms_strdup_printf(_("Call answered by %s."),tmp);
linphone_core_notify_display_status(lc,msg);
ms_free(tmp);
ms_free(msg);
}
}
}
linphone_core_update_streams(lc,call,md);
/*also reflect the change if the "wished" params, in order to avoid to propose SAVP or video again
* further in the call, for example during pause,resume, conferencing reINVITEs*/
linphone_call_fix_call_parameters(call);
if (!call->current_params->in_conference)
lc->current_call=call;
if (update_state) linphone_call_set_state(call, LinphoneCallStreamsRunning, "Streams running");
}
}else{
switch (call->prevstate){
/*send a bye only in case of outgoing state*/
case LinphoneCallOutgoingInit:
case LinphoneCallOutgoingProgress:
case LinphoneCallOutgoingRinging:
case LinphoneCallOutgoingEarlyMedia:
ms_error("Incompatible SDP offer received in 200 OK, need to abort the call");
linphone_core_abort_call(lc,call,_("Incompatible, check codecs or security settings..."));
break;
/*otherwise we are able to resume previous state*/
default:
ms_message("Incompatible SDP offer received in 200 OK, restoring previous state[%s]",linphone_call_state_to_string(call->prevstate));
linphone_call_set_state(call,call->prevstate,_("Incompatible media parameters."));
break;
}
}
}
static void call_ack(SalOp *op){
LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
LinphoneCall *call=(LinphoneCall*)sal_op_get_user_pointer(op);
if (call==NULL){
ms_warning("No call to be ACK'd");
return ;
}
if (call->expect_media_in_ack){
SalMediaDescription *md=sal_call_get_final_media_description(op);
if (md && !sal_media_description_empty(md)){
linphone_core_update_streams(lc,call,md);
linphone_call_set_state (call,LinphoneCallStreamsRunning,"Connected (streams running)");
}else{
/*send a bye*/
ms_error("Incompatible SDP response received in ACK, need to abort the call");
linphone_core_abort_call(lc,call,"No codec intersection");
return;
}
}
}
static void call_resumed(LinphoneCore *lc, LinphoneCall *call){
/*when we are resumed, increment session id, because sdp is changed (a=recvonly disapears)*/
linphone_call_increment_local_media_description(call);
linphone_core_notify_display_status(lc,_("We have been resumed."));
_linphone_core_accept_call_update(lc,call,NULL,LinphoneCallStreamsRunning,"Connected (streams running)");
}
static void call_paused_by_remote(LinphoneCore *lc, LinphoneCall *call){
/*when we are paused, increment session id, because sdp is changed (a=recvonly appears)*/
linphone_call_increment_local_media_description(call);
/* we are being paused */
linphone_core_notify_display_status(lc,_("We are paused by other party."));
_linphone_core_accept_call_update(lc,call,NULL,LinphoneCallPausedByRemote,"Call paused by remote");
}
static void call_updated_by_remote(LinphoneCore *lc, LinphoneCall *call, bool_t is_update){
/*first check if media capabilities are compatible*/
SalMediaDescription *md;
SalMediaDescription *rmd=sal_call_get_remote_media_description(call->op);
SalMediaDescription *prev_result_desc=call->resultdesc;
if (rmd!=NULL){
if (call->state!=LinphoneCallPaused){
/*in paused state, we must stay in paused state.*/
linphone_call_make_local_media_description(lc,call);
sal_call_set_local_media_description(call->op,call->localdesc);
}
md=sal_call_get_final_media_description(call->op);
if (md && (sal_media_description_empty(md) || linphone_core_incompatible_security(lc,md))){
sal_call_decline(call->op,SalReasonNotAcceptable,NULL);
return;
}
if (is_update && prev_result_desc && md){
int diff=sal_media_description_equals(prev_result_desc,md);
if (diff & (SAL_MEDIA_DESCRIPTION_CRYPTO_POLICY_CHANGED|SAL_MEDIA_DESCRIPTION_STREAMS_CHANGED)){
ms_warning("Cannot accept this update, it is changing parameters that require user approval");
sal_call_decline(call->op,SalReasonNotAcceptable,NULL); /*FIXME should send 504 Cannot change the session parameters without prompting the user"*/
return;
}
}
}
if (call->state==LinphoneCallStreamsRunning) {
/*reINVITE and in-dialogs UPDATE go here*/
linphone_core_notify_display_status(lc,_("Call is updated by remote."));
call->defer_update=FALSE;
linphone_call_set_state(call, LinphoneCallUpdatedByRemote,"Call updated by remote");
if (call->defer_update==FALSE){
linphone_core_accept_call_update(lc,call,NULL);
}
if (rmd==NULL)
call->expect_media_in_ack=TRUE;
} else if (is_update){ /*SIP UPDATE case, can occur in early states*/
linphone_call_set_state(call, LinphoneCallEarlyUpdatedByRemote, "EarlyUpdatedByRemote");
_linphone_core_accept_call_update(lc,call,NULL,call->prevstate,linphone_call_state_to_string(call->prevstate));
}
}
/* this callback is called when an incoming re-INVITE/ SIP UPDATE modifies the session*/
static void call_updating(SalOp *op, bool_t is_update){
LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
LinphoneCall *call=(LinphoneCall*)sal_op_get_user_pointer(op);
SalMediaDescription *rmd=sal_call_get_remote_media_description(op);
if (rmd==NULL){
/* case of a reINVITE or UPDATE without SDP */
call_updated_by_remote(lc,call,is_update);
return;
}
switch(call->state){
case LinphoneCallPausedByRemote:
if (sal_media_description_has_dir(rmd,SalStreamSendRecv) || sal_media_description_has_dir(rmd,SalStreamRecvOnly)){
call_resumed(lc,call);
}else call_updated_by_remote(lc,call,is_update);
break;
/*SIP UPDATE CASE*/
case LinphoneCallOutgoingRinging:
case LinphoneCallOutgoingEarlyMedia:
case LinphoneCallIncomingEarlyMedia:
if (is_update) call_updated_by_remote(lc,call,is_update);
break;
case LinphoneCallStreamsRunning:
case LinphoneCallConnected:
if (sal_media_description_has_dir(rmd,SalStreamSendOnly) || sal_media_description_has_dir(rmd,SalStreamInactive)){
call_paused_by_remote(lc,call);
}else{
call_updated_by_remote(lc,call,is_update);
}
break;
case LinphoneCallPaused:
if (sal_media_description_has_dir(rmd,SalStreamSendOnly) || sal_media_description_has_dir(rmd,SalStreamInactive)){
call_paused_by_remote(lc,call);
}else{
call_updated_by_remote(lc,call,is_update);
}
break;
case LinphoneCallUpdating:
case LinphoneCallPausing:
case LinphoneCallResuming:
case LinphoneCallUpdatedByRemote:
sal_call_decline(call->op,SalReasonNotImplemented,NULL);
/*no break*/
case LinphoneCallIdle:
case LinphoneCallOutgoingInit:
case LinphoneCallEnd:
case LinphoneCallIncomingReceived:
case LinphoneCallOutgoingProgress:
case LinphoneCallRefered:
case LinphoneCallError:
case LinphoneCallReleased:
case LinphoneCallEarlyUpdatedByRemote:
case LinphoneCallEarlyUpdating:
ms_warning("Receiving reINVITE or UPDATE while in state [%s], should not happen.",linphone_call_state_to_string(call->state));
break;
}
}
static void call_terminated(SalOp *op, const char *from){
LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
LinphoneCall *call=(LinphoneCall*)sal_op_get_user_pointer(op);
if (call==NULL) return;
switch(linphone_call_get_state(call)){
case LinphoneCallEnd:
case LinphoneCallError:
ms_warning("call_terminated: ignoring.");
return;
break;
case LinphoneCallIncomingReceived:
case LinphoneCallIncomingEarlyMedia:
sal_error_info_set(&call->non_op_error,SalReasonRequestTimeout,0,"Incoming call cancelled",NULL);
break;
default:
break;
}
ms_message("Current call terminated...");
if (call->refer_pending){
linphone_core_start_refered_call(lc,call,NULL);
}
//we stop the call only if we have this current call or if we are in call
if (lc->ringstream!=NULL && ( (ms_list_size(lc->calls) == 1) || linphone_core_in_call(lc) )) {
linphone_core_stop_ringing(lc);
}
linphone_call_stop_media_streams(call);
linphone_core_notify_show_interface(lc);
linphone_core_notify_display_status(lc,_("Call terminated."));
#ifdef BUILD_UPNP
linphone_call_delete_upnp_session(call);
#endif //BUILD_UPNP
linphone_call_set_state(call, LinphoneCallEnd,"Call ended");
}
static int resume_call_after_failed_transfer(LinphoneCall *call){
if (call->was_automatically_paused && call->state==LinphoneCallPausing)
return BELLE_SIP_CONTINUE; /*was still in pausing state*/
if (call->was_automatically_paused && call->state==LinphoneCallPaused){
if (sal_op_is_idle(call->op)){
linphone_core_resume_call(call->core,call);
}else {
ms_message("resume_call_after_failed_transfer(), salop was busy");
return BELLE_SIP_CONTINUE;
}
}
linphone_call_unref(call);
return BELLE_SIP_STOP;
}
static void call_failure(SalOp *op){
LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
const SalErrorInfo *ei=sal_op_get_error_info(op);
char *msg486=_("User is busy.");
char *msg480=_("User is temporarily unavailable.");
/*char *retrymsg=_("%s. Retry after %i minute(s).");*/
char *msg600=_("User does not want to be disturbed.");
char *msg603=_("Call declined.");
const char *msg=ei->full_string;
LinphoneCall *call=(LinphoneCall*)sal_op_get_user_pointer(op);
LinphoneCall *referer=call->referer;
if (call==NULL){
ms_warning("Call faillure reported on already terminated call.");
return ;
}
linphone_core_notify_show_interface(lc);
switch(ei->reason){
case SalReasonNone:
break;
case SalReasonRequestTimeout:
msg=_("Request timeout.");
linphone_core_notify_display_status(lc,msg);
break;
case SalReasonDeclined:
msg=msg603;
linphone_core_notify_display_status(lc,msg603);
break;
case SalReasonBusy:
msg=msg486;
linphone_core_notify_display_status(lc,msg486);
break;
case SalReasonRedirect:
{
linphone_call_stop_media_streams(call);
if ( call->state==LinphoneCallOutgoingInit
|| call->state==LinphoneCallOutgoingProgress
|| call->state==LinphoneCallOutgoingRinging /*push case*/
|| call->state==LinphoneCallOutgoingEarlyMedia){
LinphoneAddress* redirection_to = (LinphoneAddress*)sal_op_get_remote_contact_address(call->op);
if( redirection_to ){
char* url = linphone_address_as_string(redirection_to);
ms_warning("Redirecting call [%p] to %s",call, url);
ms_free(url);
if( call->log->to != NULL ) {
linphone_address_unref(call->log->to);
}
call->log->to = linphone_address_ref(redirection_to);
linphone_core_restart_invite(lc, call);
return;
}
}
msg=_("Redirected");
linphone_core_notify_display_status(lc,msg);
}
break;
case SalReasonTemporarilyUnavailable:
msg=msg480;
linphone_core_notify_display_status(lc,msg480);
break;
case SalReasonNotFound:
linphone_core_notify_display_status(lc,msg);
break;
case SalReasonDoNotDisturb:
msg=msg600;
linphone_core_notify_display_status(lc,msg600);
break;
case SalReasonUnsupportedContent: /*<this is for compatibility: linphone sent 415 because of SDP offer answer failure*/
case SalReasonNotAcceptable:
ms_message("Outgoing call [%p] failed with SRTP and/or AVPF enabled", call);
if ((call->state == LinphoneCallOutgoingInit)
|| (call->state == LinphoneCallOutgoingProgress)
|| (call->state == LinphoneCallOutgoingRinging) /* Push notification case */
|| (call->state == LinphoneCallOutgoingEarlyMedia)) {
int i;
for (i = 0; i < call->localdesc->nb_streams; i++) {
if (!sal_stream_description_active(&call->localdesc->streams[i])) continue;
if (call->params->media_encryption == LinphoneMediaEncryptionSRTP) {
if (call->params->avpf_enabled == TRUE) {
if (i == 0) ms_message("Retrying call [%p] with SAVP", call);
call->params->avpf_enabled = FALSE;
linphone_core_restart_invite(lc, call);
return;
} else if (!linphone_core_is_media_encryption_mandatory(lc)) {
if (i == 0) ms_message("Retrying call [%p] with AVP", call);
call->params->media_encryption = LinphoneMediaEncryptionNone;
memset(call->localdesc->streams[i].crypto, 0, sizeof(call->localdesc->streams[i].crypto));
linphone_core_restart_invite(lc, call);
return;
}
} else if (call->params->avpf_enabled == TRUE) {
if (i == 0) ms_message("Retrying call [%p] with AVP", call);
call->params->avpf_enabled = FALSE;
linphone_core_restart_invite(lc, call);
return;
}
}
}
msg=_("Incompatible media parameters.");
linphone_core_notify_display_status(lc,msg);
break;
case SalReasonRequestPending:
/*restore previous state, the application will decide to resubmit the action if relevant*/
linphone_call_set_state(call,call->prevstate,msg);
return;
break;
default:
linphone_core_notify_display_status(lc,_("Call failed."));
}
/*some call error are not fatal*/
switch (call->state) {
case LinphoneCallUpdating:
case LinphoneCallPausing:
case LinphoneCallResuming:
ms_message("Call error on state [%s], restoring previous state",linphone_call_state_to_string(call->prevstate));
linphone_call_set_state(call, call->prevstate,ei->full_string);
return;
default:
break; /*nothing to do*/
}
linphone_core_stop_ringing(lc);
linphone_call_stop_media_streams(call);
#ifdef BUILD_UPNP
linphone_call_delete_upnp_session(call);
#endif //BUILD_UPNP
if (call->state!=LinphoneCallEnd && call->state!=LinphoneCallError){
if (ei->reason==SalReasonDeclined){
linphone_call_set_state(call,LinphoneCallEnd,"Call declined.");
}else{
linphone_call_set_state(call,LinphoneCallError,ei->full_string);
}
if (ei->reason!=SalReasonNone) linphone_core_play_call_error_tone(lc,linphone_reason_from_sal(ei->reason));
}
if (referer){
/*notify referer of the failure*/
linphone_core_notify_refer_state(lc,referer,call);
/*schedule automatic resume of the call. This must be done only after the notifications are completed due to dialog serialization of requests.*/
linphone_core_queue_task(lc,(belle_sip_source_func_t)resume_call_after_failed_transfer,linphone_call_ref(referer),"Automatic call resuming after failed transfer");
}
}
static void call_released(SalOp *op){
LinphoneCall *call=(LinphoneCall*)sal_op_get_user_pointer(op);
if (call!=NULL){
linphone_call_set_state(call,LinphoneCallReleased,"Call released");
}else{
/*we can arrive here when the core manages call at Sal level without creating a LinphoneCall object. Typicially:
* - when declining an incoming call with busy because maximum number of calls is reached.
*/
}
}
static void auth_failure(SalOp *op, SalAuthInfo* info) {
LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
LinphoneAuthInfo *ai=NULL;
if( info != NULL ){
ai = (LinphoneAuthInfo*)linphone_core_find_auth_info(lc,info->realm,info->username,info->domain);
if (ai){
ms_message("%s/%s/%s authentication fails.",info->realm,info->username,info->domain);
/*ask again for password if auth info was already supplied but apparently not working*/
linphone_core_notify_auth_info_requested(lc,info->realm,info->username,info->domain);
}
}
}
static void register_success(SalOp *op, bool_t registered){
LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)sal_op_get_user_pointer(op);
char *msg;
if (!cfg){
ms_message("Registration success for deleted proxy config, ignored");
return;
}
linphone_proxy_config_set_state(cfg, registered ? LinphoneRegistrationOk : LinphoneRegistrationCleared ,
registered ? "Registration successful" : "Unregistration done");
{
if (registered) msg=ms_strdup_printf(_("Registration on %s successful."),sal_op_get_proxy(op));
else msg=ms_strdup_printf(_("Unregistration on %s done."),sal_op_get_proxy(op));
linphone_core_notify_display_status(lc,msg);
ms_free(msg);
}
}
static void register_failure(SalOp *op){
LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
LinphoneProxyConfig *cfg=(LinphoneProxyConfig*)sal_op_get_user_pointer(op);
const SalErrorInfo *ei=sal_op_get_error_info(op);
const char *details=ei->full_string;
if (cfg==NULL){
ms_warning("Registration failed for unknown proxy config.");
return ;
}
if (details==NULL)
details=_("no response timeout");
{
char *msg=ortp_strdup_printf(_("Registration on %s failed: %s"),sal_op_get_proxy(op), details);
linphone_core_notify_display_status(lc,msg);
ms_free(msg);
}
if ((ei->reason == SalReasonServiceUnavailable || ei->reason == SalReasonIOError)
&& linphone_proxy_config_get_state(cfg) == LinphoneRegistrationOk) {
linphone_proxy_config_set_state(cfg,LinphoneRegistrationProgress,_("Service unavailable, retrying"));
} else {
linphone_proxy_config_set_state(cfg,LinphoneRegistrationFailed,details);
}
if (cfg->publish_op){
/*prevent publish to be sent now until registration gets successful*/
sal_op_release(cfg->publish_op);
cfg->publish_op=NULL;
cfg->send_publish=cfg->publish;
}
}
static void vfu_request(SalOp *op){
#ifdef VIDEO_ENABLED
LinphoneCall *call=(LinphoneCall*)sal_op_get_user_pointer (op);
if (call==NULL){
ms_warning("VFU request but no call !");
return ;
}
if (call->videostream)
video_stream_send_vfu(call->videostream);
#endif
}
static void dtmf_received(SalOp *op, char dtmf){
LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
LinphoneCall *call=(LinphoneCall*)sal_op_get_user_pointer(op);
linphone_core_notify_dtmf_received(lc, call, dtmf);
}
static void refer_received(Sal *sal, SalOp *op, const char *referto){
LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal);
LinphoneCall *call=(LinphoneCall*)sal_op_get_user_pointer(op);
if (call){
if (call->refer_to!=NULL){
ms_free(call->refer_to);
}
call->refer_to=ms_strdup(referto);
call->refer_pending=TRUE;
linphone_call_set_state(call,LinphoneCallRefered,"Refered");
{
char *msg=ms_strdup_printf(_("We are transferred to %s"),referto);
linphone_core_notify_display_status(lc,msg);
ms_free(msg);
}
if (call->refer_pending) linphone_core_start_refered_call(lc,call,NULL);
}else {
linphone_core_notify_refer_received(lc,referto);
}
}
static bool_t is_duplicate_msg(LinphoneCore *lc, const char *msg_id){
MSList *elem=lc->last_recv_msg_ids;
MSList *tail=NULL;
int i;
bool_t is_duplicate=FALSE;
for(i=0;elem!=NULL;elem=elem->next,i++){
if (strcmp((const char*)elem->data,msg_id)==0){
is_duplicate=TRUE;
}
tail=elem;
}
if (!is_duplicate){
lc->last_recv_msg_ids=ms_list_prepend(lc->last_recv_msg_ids,ms_strdup(msg_id));
}
if (i>=10){
ms_free(tail->data);
lc->last_recv_msg_ids=ms_list_remove_link(lc->last_recv_msg_ids,tail);
}
return is_duplicate;
}
static void text_received(SalOp *op, const SalMessage *msg){
LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
LinphoneCall *call=(LinphoneCall*)sal_op_get_user_pointer(op);
if (lc->chat_deny_code==LinphoneReasonNone && is_duplicate_msg(lc,msg->message_id)==FALSE){
linphone_core_message_received(lc,op,msg);
}
sal_message_reply(op,linphone_reason_to_sal(lc->chat_deny_code));
if (!call) sal_op_release(op);
}
static void is_composing_received(SalOp *op, const SalIsComposing *is_composing) {
LinphoneCore *lc = (LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
linphone_core_is_composing_received(lc, op, is_composing);
}
static void parse_presence_requested(SalOp *op, const char *content_type, const char *content_subtype, const char *body, SalPresenceModel **result) {
linphone_notify_parse_presence(op, content_type, content_subtype, body, result);
}
static void convert_presence_to_xml_requested(SalOp *op, SalPresenceModel *presence, const char *contact, char **content) {
linphone_notify_convert_presence_to_xml(op, presence, contact, content);
}
static void notify_presence(SalOp *op, SalSubscribeStatus ss, SalPresenceModel *model, const char *msg){
LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
linphone_notify_recv(lc,op,ss,model);
}
static void subscribe_presence_received(SalOp *op, const char *from){
LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
linphone_subscription_new(lc,op,from);
}
static void subscribe_presence_closed(SalOp *op, const char *from){
LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
linphone_subscription_closed(lc,op);
}
static void ping_reply(SalOp *op){
LinphoneCall *call=(LinphoneCall*) sal_op_get_user_pointer(op);
ms_message("ping reply !");
if (call){
if (call->state==LinphoneCallOutgoingInit){
call->ping_replied=TRUE;
linphone_core_proceed_with_invite_if_ready(call->core,call,NULL);
}
}
else
{
ms_warning("ping reply without call attached...");
}
}
static bool_t fill_auth_info_with_client_certificate(LinphoneCore *lc, SalAuthInfo* sai) {
const char *chain_file = lp_config_get_string(lc->config,"sip","client_cert_chain", 0);
const char *key_file = lp_config_get_string(lc->config,"sip","client_cert_key", 0);;
#ifndef WIN32
{
// optinal check for files
struct stat st;
if (stat(key_file,&st)) {
ms_warning("No client certificate key found in %s", key_file);
return FALSE;
}
if (stat(chain_file,&st)) {
ms_warning("No client certificate chain found in %s", chain_file);
return FALSE;
}
}
#endif
sal_certificates_chain_parse_file(sai, chain_file, SAL_CERTIFICATE_RAW_FORMAT_PEM );
sal_signing_key_parse_file(sai, key_file, "");
return sai->certificates && sai->key;
}
static bool_t fill_auth_info(LinphoneCore *lc, SalAuthInfo* sai) {
LinphoneAuthInfo *ai=(LinphoneAuthInfo*)linphone_core_find_auth_info(lc,sai->realm,sai->username,sai->domain);
if (ai) {
sai->userid=ms_strdup(ai->userid?ai->userid:ai->username);
sai->password=ai->passwd?ms_strdup(ai->passwd):NULL;
sai->ha1=ai->ha1?ms_strdup(ai->ha1):NULL;
return TRUE;
} else {
return FALSE;
}
}
static bool_t auth_requested(Sal* sal, SalAuthInfo* sai) {
LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal);
if (sai->mode == SalAuthModeHttpDigest) {
if (fill_auth_info(lc,sai)) {
return TRUE;
} else {
{
linphone_core_notify_auth_info_requested(lc,sai->realm,sai->username,sai->domain);
if (fill_auth_info(lc,sai)) {
return TRUE;
}
}
return FALSE;
}
} else if (sai->mode == SalAuthModeTls) {
return fill_auth_info_with_client_certificate(lc,sai);
} else {
return FALSE;
}
}
static void notify_refer(SalOp *op, SalReferStatus status){
LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
LinphoneCall *call=(LinphoneCall*) sal_op_get_user_pointer(op);
LinphoneCallState cstate;
if (call==NULL) {
ms_warning("Receiving notify_refer for unknown call.");
return ;
}
switch(status){
case SalReferTrying:
cstate=LinphoneCallOutgoingProgress;
break;
case SalReferSuccess:
cstate=LinphoneCallConnected;
break;
case SalReferFailed:
cstate=LinphoneCallError;
break;
default:
cstate=LinphoneCallError;
}
linphone_call_set_transfer_state(call, cstate);
if (cstate==LinphoneCallConnected){
/*automatically terminate the call as the transfer is complete.*/
linphone_core_terminate_call(lc,call);
}
}
static LinphoneChatMessageState chatStatusSal2Linphone(SalTextDeliveryStatus status){
switch(status){
case SalTextDeliveryInProgress:
return LinphoneChatMessageStateInProgress;
case SalTextDeliveryDone:
return LinphoneChatMessageStateDelivered;
case SalTextDeliveryFailed:
return LinphoneChatMessageStateNotDelivered;
}
return LinphoneChatMessageStateIdle;
}
static void text_delivery_update(SalOp *op, SalTextDeliveryStatus status){
LinphoneChatMessage *chat_msg=(LinphoneChatMessage* )sal_op_get_user_pointer(op);
if (chat_msg == NULL) {
// Do not handle delivery status for isComposing messages.
return;
}
chat_msg->state=chatStatusSal2Linphone(status);
linphone_chat_message_update_state(chat_msg);
if (chat_msg && (chat_msg->cb || (chat_msg->callbacks && linphone_chat_message_cbs_get_msg_state_changed(chat_msg->callbacks)))) {
ms_message("Notifying text delivery with status %i",chat_msg->state);
if (chat_msg->callbacks && linphone_chat_message_cbs_get_msg_state_changed(chat_msg->callbacks)) {
linphone_chat_message_cbs_get_msg_state_changed(chat_msg->callbacks)(chat_msg, chat_msg->state);
} else {
/* Legacy */
chat_msg->cb(chat_msg,chat_msg->state,chat_msg->cb_ud);
}
}
if (status != SalTextDeliveryInProgress) { /*only release op if not in progress*/
linphone_chat_message_destroy(chat_msg);
}
}
static void info_received(SalOp *op, const SalBody *body){
LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
linphone_core_notify_info_message(lc,op,body);
}
static void subscribe_response(SalOp *op, SalSubscribeStatus status){
LinphoneEvent *lev=(LinphoneEvent*)sal_op_get_user_pointer(op);
const SalErrorInfo *ei=sal_op_get_error_info(op);
if (lev==NULL) return;
if (status==SalSubscribeActive){
linphone_event_set_state(lev,LinphoneSubscriptionActive);
}else if (status==SalSubscribePending){
linphone_event_set_state(lev,LinphoneSubscriptionPending);
}else{
if (lev->subscription_state==LinphoneSubscriptionActive && ei->reason==SalReasonIOError){
linphone_event_set_state(lev,LinphoneSubscriptionOutgoingProgress);
}
else linphone_event_set_state(lev,LinphoneSubscriptionError);
}
}
static void notify(SalOp *op, SalSubscribeStatus st, const char *eventname, const SalBody *body){
LinphoneEvent *lev=(LinphoneEvent*)sal_op_get_user_pointer(op);
LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
if (lev==NULL) {
/*out of subscribe notify */
lev=linphone_event_new_with_out_of_dialog_op(lc,op,LinphoneSubscriptionOutgoing,eventname);
}
{
LinphoneContent *ct=linphone_content_from_sal_body(body);
if (ct) linphone_core_notify_notify_received(lc,lev,eventname,ct);
}
if (st!=SalSubscribeNone){
linphone_event_set_state(lev,linphone_subscription_state_from_sal(st));
}
}
static void subscribe_received(SalOp *op, const char *eventname, const SalBody *body){
LinphoneEvent *lev=(LinphoneEvent*)sal_op_get_user_pointer(op);
LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(op));
if (lev==NULL) {
lev=linphone_event_new_with_op(lc,op,LinphoneSubscriptionIncoming,eventname);
linphone_event_set_state(lev,LinphoneSubscriptionIncomingReceived);
}else{
/*subscribe refresh, unhandled*/
}
}
static void subscribe_closed(SalOp *op){
LinphoneEvent *lev=(LinphoneEvent*)sal_op_get_user_pointer(op);
linphone_event_set_state(lev,LinphoneSubscriptionTerminated);
}
static void on_publish_response(SalOp* op){
LinphoneEvent *lev=(LinphoneEvent*)sal_op_get_user_pointer(op);
const SalErrorInfo *ei=sal_op_get_error_info(op);
if (lev==NULL) return;
if (ei->reason==SalReasonNone){
if (!lev->terminating)
linphone_event_set_publish_state(lev,LinphonePublishOk);
else
linphone_event_set_publish_state(lev,LinphonePublishCleared);
}else{
if (lev->publish_state==LinphonePublishOk){
linphone_event_set_publish_state(lev,LinphonePublishProgress);
}else{
linphone_event_set_publish_state(lev,LinphonePublishError);
}
}
}
static void on_expire(SalOp *op){
LinphoneEvent *lev=(LinphoneEvent*)sal_op_get_user_pointer(op);
if (lev==NULL) return;
if (linphone_event_get_publish_state(lev)==LinphonePublishOk){
linphone_event_set_publish_state(lev,LinphonePublishExpiring);
}else if (linphone_event_get_subscription_state(lev)==LinphoneSubscriptionActive){
linphone_event_set_state(lev,LinphoneSubscriptionExpiring);
}
}
SalCallbacks linphone_sal_callbacks={
call_received,
call_ringing,
call_accepted,
call_ack,
call_updating,
call_terminated,
call_failure,
call_released,
auth_failure,
register_success,
register_failure,
vfu_request,
dtmf_received,
refer_received,
text_received,
text_delivery_update,
is_composing_received,
notify_refer,
subscribe_received,
subscribe_closed,
subscribe_response,
notify,
subscribe_presence_received,
subscribe_presence_closed,
parse_presence_requested,
convert_presence_to_xml_requested,
notify_presence,
ping_reply,
auth_requested,
info_received,
on_publish_response,
on_expire
};