static void tls_channel_close(belle_sip_tls_channel_t *obj){
belle_sip_socket_t sock = belle_sip_source_get_socket((belle_sip_source_t*)obj);
if (sock!=-1 && belle_sip_channel_get_state((belle_sip_channel_t*)obj)!=BELLE_SIP_CHANNEL_ERROR)
ssl_close_notify(&obj->sslctx);
stream_channel_close((belle_sip_stream_channel_t*)obj);
ssl_session_reset(&obj->sslctx);
obj->socket_connected=0;
}
static void process_io_error(belle_sip_listener_t *user_ctx, const belle_sip_io_error_event_t *event){
belle_sip_refresher_t* refresher=(belle_sip_refresher_t*)user_ctx;
belle_sip_client_transaction_t*client_transaction;
if (refresher->on_io_error==1) {
return; /*refresher already on error*/
}
if (BELLE_SIP_OBJECT_IS_INSTANCE_OF(belle_sip_io_error_event_get_source(event),belle_sip_client_transaction_t)) {
client_transaction=BELLE_SIP_CLIENT_TRANSACTION(belle_sip_io_error_event_get_source(event));
if (!refresher || (refresher && ((refresher->state==stopped
&& belle_sip_transaction_get_state(BELLE_SIP_TRANSACTION(refresher->transaction)) != BELLE_SIP_TRANSACTION_TRYING
&& belle_sip_transaction_get_state(BELLE_SIP_TRANSACTION(refresher->transaction)) != BELLE_SIP_TRANSACTION_INIT /*to cover dns or certificate error*/)
|| client_transaction !=refresher->transaction )))
return; /*not for me or no longuer involved*/
if (refresher->target_expires==0
&& belle_sip_transaction_get_state(BELLE_SIP_TRANSACTION(refresher->transaction)) != BELLE_SIP_TRANSACTION_TRYING
&& belle_sip_transaction_get_state(BELLE_SIP_TRANSACTION(refresher->transaction)) != BELLE_SIP_TRANSACTION_INIT ) {
return; /*not for me or no longuer involved because expire=0*/
}
if (refresher->state==started) retry_later_on_io_error(refresher);
if (refresher->listener) refresher->listener(refresher,refresher->user_data,503, "io error");
return;
} else if (BELLE_SIP_OBJECT_IS_INSTANCE_OF(belle_sip_io_error_event_get_source(event),belle_sip_provider_t)) {
/*something went wrong on this provider, checking if my channel is still up*/
if (refresher->state==started /*refresher started or trying to refresh */
&& belle_sip_transaction_get_state(BELLE_SIP_TRANSACTION(refresher->transaction)) == BELLE_SIP_TRANSACTION_TERMINATED /*else we are notified by transaction error*/
&& refresher->transaction->base.channel /*transaction may not have any channel*/
&& (belle_sip_channel_get_state(refresher->transaction->base.channel) == BELLE_SIP_CHANNEL_DISCONNECTED
||belle_sip_channel_get_state(refresher->transaction->base.channel) == BELLE_SIP_CHANNEL_ERROR)) {
belle_sip_message("refresher [%p] has channel [%p] in state [%s], reporting error"
,refresher
,refresher->transaction->base.channel
,belle_sip_channel_state_to_string(belle_sip_channel_get_state(refresher->transaction->base.channel)));
if (refresher->state==started) retry_later_on_io_error(refresher);
if (refresher->listener) refresher->listener(refresher,refresher->user_data,503, "io error");
refresher->on_io_error=1;
}
return;
}else {
/*belle_sip_error("Refresher process_io_error not implemented yet for non transaction/provider source");*/
/*nop, because already handle at transaction layer*/
}
}
int belle_sip_client_transaction_send_request_to(belle_sip_client_transaction_t *t,belle_sip_uri_t* outbound_proxy) {
belle_sip_channel_t *chan;
belle_sip_provider_t *prov=t->base.provider;
belle_sip_dialog_t *dialog=t->base.dialog;
belle_sip_request_t *req=t->base.request;
int result=-1;
if (t->base.state!=BELLE_SIP_TRANSACTION_INIT){
belle_sip_error("belle_sip_client_transaction_send_request: bad state.");
return -1;
}
/*check uris components compliance*/
if (!belle_sip_request_check_uris_components(t->base.request)) {
belle_sip_error("belle_sip_client_transaction_send_request: bad request for transaction [%p]",t);
return -1;
}
/*store preset route for future use by refresher*/
if (outbound_proxy){
t->preset_route=outbound_proxy;
belle_sip_object_ref(t->preset_route);
}
if (t->base.sent_by_dialog_queue){
/*it can be sent immediately, so update the request with latest cseq and route_set */
/*update route and contact just in case they changed*/
belle_sip_dialog_update_request(dialog,req);
} else if (t->base.request->dialog_queued){
/*this request was created by belle_sip_dialog_create_queued_request().*/
if (belle_sip_dialog_request_pending(dialog) || dialog->queued_ct!=NULL){
/*it cannot be sent immediately, queue the transaction into dialog*/
belle_sip_message("belle_sip_client_transaction_send_request(): transaction [%p], cannot send request now because dialog is busy"
" or other transactions are queued, so queuing into dialog.",t);
belle_sip_dialog_queue_client_transaction(dialog,t);
return 0;
}
belle_sip_dialog_update_request(dialog,req);
}
if (dialog){
belle_sip_dialog_update(dialog,(belle_sip_transaction_t*)t,BELLE_SIP_OBJECT_IS_INSTANCE_OF(t,belle_sip_server_transaction_t));
}
if (!t->next_hop) {
if (t->preset_route) {
t->next_hop=belle_sip_hop_new_from_uri(t->preset_route);
} else {
t->next_hop = belle_sip_stack_get_next_hop(prov->stack,t->base.request);
}
belle_sip_object_ref(t->next_hop);
} else {
/*next hop already preset, probably in case of CANCEL*/
}
belle_sip_provider_add_client_transaction(t->base.provider,t); /*add it in any case*/
chan=belle_sip_provider_get_channel(prov,t->next_hop);
if (chan){
belle_sip_object_ref(chan);
belle_sip_channel_add_listener(chan,BELLE_SIP_CHANNEL_LISTENER(t));
t->base.channel=chan;
if (belle_sip_channel_get_state(chan)==BELLE_SIP_CHANNEL_INIT){
belle_sip_message("belle_sip_client_transaction_send_request(): waiting channel to be ready");
belle_sip_channel_prepare(chan);
/*the channel will notify us when it is ready*/
} else if (belle_sip_channel_get_state(chan)==BELLE_SIP_CHANNEL_READY){
/*otherwise we can send immediately*/
BELLE_SIP_OBJECT_VPTR(t,belle_sip_client_transaction_t)->send_request(t);
}
result=0;
}else {
belle_sip_error("belle_sip_client_transaction_send_request(): no channel available");
belle_sip_transaction_terminate(BELLE_SIP_TRANSACTION(t));
result=-1;
}
return result;
}