LinphoneCall * linphone_call_new_incoming(LinphoneCore *lc, LinphoneAddress *from, LinphoneAddress *to, SalOp *op){
LinphoneCall *call=ms_new0(LinphoneCall,1);
char *from_str;
call->dir=LinphoneCallIncoming;
sal_op_set_user_pointer(op,call);
call->op=op;
call->core=lc;
if (lc->sip_conf.ping_with_options){
/*the following sends an option request back to the caller so that
we get a chance to discover our nat'd address before answering.*/
call->ping_op=sal_op_new(lc->sal);
from_str=linphone_address_as_string(from);
sal_op_set_route(call->ping_op,sal_op_get_network_origin(call->op));
sal_op_set_user_pointer(call->ping_op,call);
sal_ping(call->ping_op,linphone_core_find_best_identity(lc,from,NULL),from_str);
ms_free(from_str);
}
linphone_address_clean(from);
linphone_core_get_local_ip(lc,linphone_address_get_domain(from),call->localip);
linphone_call_init_common(call, from, to);
call->params.has_video=linphone_core_video_enabled(lc);
call->localdesc=create_local_media_description (lc,call);
call->camera_active=call->params.has_video;
if (linphone_core_get_firewall_policy(call->core)==LinphonePolicyUseStun)
linphone_core_run_stun_tests(call->core,call);
discover_mtu(lc,linphone_address_get_domain(from));
return call;
}
LinphoneCall * linphone_call_new_outgoing(struct _LinphoneCore *lc, LinphoneAddress *from, LinphoneAddress *to, const LinphoneCallParams *params)
{
LinphoneCall *call=ms_new0(LinphoneCall,1);
call->dir=LinphoneCallOutgoing;
call->op=sal_op_new(lc->sal);
sal_op_set_user_pointer(call->op,call);
call->core=lc;
linphone_core_get_local_ip(lc,linphone_address_get_domain(to),call->localip);
linphone_call_init_common(call,from,to);
call->params=*params;
call->localdesc=create_local_media_description (lc,call);
call->camera_active=params->has_video;
if (linphone_core_get_firewall_policy(call->core)==LinphonePolicyUseStun)
linphone_core_run_stun_tests(call->core,call);
discover_mtu(lc,linphone_address_get_domain (to));
if (params->referer){
sal_call_set_referer (call->op,params->referer->op);
}
return call;
}
static void call_received(SalOp *h){
LinphoneCore *lc=(LinphoneCore *)sal_get_user_pointer(sal_op_get_sal(h));
LinphoneCall *call;
const char *from,*to;
char *alt_contact;
LinphoneAddress *from_addr, *to_addr;
bool_t prevent_colliding_calls=lp_config_get_int(lc->config,"sip","prevent_colliding_calls",TRUE);
/* 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;
}
from=sal_op_get_from(h);
to=sal_op_get_to(h);
from_addr=linphone_address_new(from);
to_addr=linphone_address_new(to);
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);
/* 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);
}
