/*
Enable or disable DTLS on the transport and all coresponding sockets
*@param handle The transport for which to enable or disable DTLS
*@param enabled Whether to enable or disable DTLS
*@param sockets List of all sockets for which to enable or disable DLS could be null. You should include the master socket in this list.
*@param sockets_count The number of sockets
*@return 0 if succeed, otherwise non-zero error code
*/
int tnet_transport_dtls_set_enabled(tnet_transport_handle_t *handle, tsk_bool_t enabled, struct tnet_socket_s** sockets, tsk_size_t sockets_count)
{
tnet_transport_t *transport = handle;
tnet_socket_type_t type;
int ret;
if(!transport){
TSK_DEBUG_ERROR("Invalid parameter");
return -1;
}
type = tnet_transport_get_type(transport);
if(!TNET_SOCKET_TYPE_IS_DTLS(type) && !TNET_SOCKET_TYPE_IS_UDP(type)){
TSK_DEBUG_ERROR("Trying to enable/disable DTLS on invalid transport type: %d", type);
return -3;
}
if(enabled & !tnet_dtls_is_supported()){
TSK_DEBUG_ERROR("Trying to enable DTLS but code source not built with this feature");
return -1;
}
if((transport->dtls.enabled = enabled)){
TNET_SOCKET_TYPE_SET_DTLS(transport->type);
if((ret = _tnet_transport_ssl_init(transport))){
return ret;
}
}
else{
TNET_SOCKET_TYPE_SET_UDP(transport->type);
ret = _tnet_transport_ssl_deinit(transport);
}
if(sockets && sockets_count){
tsk_size_t i;
for(i = 0; i < sockets_count; ++i){
if(!sockets[i]){
continue;
}
if(enabled){
if(!sockets[i]->dtlshandle){
if(!(sockets[i]->dtlshandle = tnet_dtls_socket_create(sockets[i]->fd, transport->dtls.ctx))){
return -4;
}
}
if(transport->dtls.use_srtp){
tnet_dtls_socket_use_srtp(sockets[i]->dtlshandle);
}
TNET_SOCKET_TYPE_SET_DTLS(sockets[i]->type);
tnet_dtls_socket_set_callback(sockets[i]->dtlshandle, transport, _tnet_transport_dtls_cb);
}
else{
TSK_OBJECT_SAFE_FREE(sockets[i]->dtlshandle);
TNET_SOCKET_TYPE_SET_UDP(sockets[i]->type);
}
}
}
return ret;
}
static tsk_object_t* tnet_transport_dtor(tsk_object_t * self)
{
tnet_transport_t *transport = self;
if (transport){
tnet_transport_set_callback(transport, tsk_null, tsk_null);
tnet_transport_shutdown(transport);
TSK_OBJECT_SAFE_FREE(transport->master);
TSK_OBJECT_SAFE_FREE(transport->context);
TSK_OBJECT_SAFE_FREE(transport->natt_ctx);
TSK_FREE(transport->local_ip);
TSK_FREE(transport->local_host);
// proxy
TSK_OBJECT_SAFE_FREE(transport->proxy.info);
// (tls and dtls) = ssl
TSK_FREE(transport->tls.ca);
TSK_FREE(transport->tls.pbk);
TSK_FREE(transport->tls.pvk);
_tnet_transport_ssl_deinit(transport); // openssl contexts
TSK_DEBUG_INFO("*** Transport (%s) destroyed ***", transport->description);
TSK_FREE(transport->description);
}
return self;
}
