int nr_ice_candidate_pair_select(nr_ice_cand_pair *pair)
{
int r,_status;
if(!pair){
r_log(LOG_ICE,LOG_ERR,"ICE-PAIR: No pair chosen");
ABORT(R_BAD_ARGS);
}
if(pair->state!=NR_ICE_PAIR_STATE_SUCCEEDED){
r_log(LOG_ICE,LOG_ERR,"ICE-PEER(%s)/CAND-PAIR(%s): tried to install non-succeeded pair, ignoring: %s",pair->pctx->label,pair->codeword,pair->as_string);
}
else{
/* Ok, they chose one */
/* 1. Send a new request with nominated. Do it as a scheduled
event to avoid reentrancy issues. Only do this if it hasn't
happened already (though this shouldn't happen.)
*/
if(!pair->restart_nominated_cb_timer)
NR_ASYNC_TIMER_SET(0,nr_ice_candidate_pair_restart_stun_nominated_cb,pair,&pair->restart_nominated_cb_timer);
/* 2. Tell ourselves this pair is ready */
if(r=nr_ice_component_nominated_pair(pair->remote->component, pair))
ABORT(r);
}
_status=0;
abort:
return(_status);
}
static int nr_turn_client_start_refresh_timer(nr_turn_client_ctx *tctx,
nr_turn_stun_ctx *sctx,
UINT4 lifetime)
{
int _status;
assert(!tctx->refresh_timer_handle);
if (lifetime <= TURN_REFRESH_SLACK_SECONDS) {
r_log(NR_LOG_TURN, LOG_ERR, "Too short lifetime specified for turn %u", lifetime);
ABORT(R_BAD_DATA);
}
if (lifetime > 3600)
lifetime = 3600;
lifetime -= TURN_REFRESH_SLACK_SECONDS;
r_log(NR_LOG_TURN, LOG_DEBUG, "TURN(%s): Setting refresh timer for %u seconds",
tctx->label, lifetime);
NR_ASYNC_TIMER_SET(lifetime * 1000, nr_turn_client_refresh_timer_cb, sctx,
&tctx->refresh_timer_handle);
_status=0;
abort:
if (_status) {
nr_turn_client_failed(tctx);
}
return _status;
}
static void nr_ice_candidate_pair_restart(nr_ice_peer_ctx *pctx, nr_ice_cand_pair *pair)
{
int r,_status;
UINT4 mode;
nr_ice_candidate_pair_set_state(pctx,pair,NR_ICE_PAIR_STATE_IN_PROGRESS);
/* Start STUN */
if(pair->pctx->controlling && (pair->pctx->ctx->flags & NR_ICE_CTX_FLAGS_AGGRESSIVE_NOMINATION))
mode=NR_ICE_CLIENT_MODE_USE_CANDIDATE;
else
mode=NR_ICE_CLIENT_MODE_BINDING_REQUEST;
nr_stun_client_reset(pair->stun_client);
if(r=nr_stun_client_start(pair->stun_client,mode,nr_ice_candidate_pair_stun_cb,pair))
ABORT(r);
if ((r=nr_ice_ctx_remember_id(pair->pctx->ctx, pair->stun_client->request))) {
/* ignore if this fails (which it shouldn't) because it's only an
* optimization and the cleanup routines are not going to do the right
* thing if this fails */
assert(0);
}
_status=0;
abort:
if(_status){
/* Don't fire the CB, but schedule it to fire ASAP */
assert(!pair->stun_cb_timer);
NR_ASYNC_TIMER_SET(0,nr_ice_candidate_pair_stun_cb,pair, &pair->stun_cb_timer);
_status=0;
}
}
int NrIceResolverFake::resolve(void *obj,
nr_resolver_resource *resource,
int (*cb)(void *cb_arg,
nr_transport_addr *addr),
void *cb_arg,
void **handle) {
int r,_status;
MOZ_ASSERT(obj);
NrIceResolverFake *fake = static_cast<NrIceResolverFake *>(obj);
MOZ_ASSERT(fake->allocated_resolvers_ > 0);
PendingResolution *pending = new PendingResolution(fake,
resource->domain_name,
resource->port ?
resource->port : 3478,
cb, cb_arg);
if ((r=NR_ASYNC_TIMER_SET(fake->delay_ms_,NrIceResolverFake::resolve_cb,
(void *)pending, &pending->timer_handle_))) {
delete pending;
ABORT(r);
}
*handle = pending;
_status=0;
abort:
return(_status);
}
static int nr_turn_client_connect(nr_turn_client_ctx *ctx)
{
int r,_status;
if (ctx->turn_server_addr.protocol != IPPROTO_TCP)
ABORT(R_INTERNAL);
r = nr_socket_connect(ctx->sock, &ctx->turn_server_addr);
if (r == R_WOULDBLOCK) {
NR_SOCKET fd;
if (r=nr_socket_getfd(ctx->sock, &fd))
ABORT(r);
NR_ASYNC_WAIT(fd, NR_ASYNC_WAIT_WRITE, nr_turn_client_connected_cb, ctx);
NR_ASYNC_TIMER_SET(TURN_CONNECT_TIMEOUT,
nr_turn_client_connect_timeout_cb, ctx,
&ctx->connected_timer_handle);
ABORT(R_WOULDBLOCK);
}
if (r) {
ABORT(R_IO_ERROR);
}
ctx->state = NR_TURN_CLIENT_STATE_CONNECTED;
_status = 0;
abort:
return(_status);
}
int nr_stun_client_wait(nr_stun_client_ctx *ctx)
{
nr_stun_client_cancel(ctx);
ctx->state=NR_STUN_CLIENT_STATE_WAITING;
ctx->request_ct = ctx->maximum_transmits;
ctx->timeout_ms = ctx->maximum_transmits_timeout_ms;
NR_ASYNC_TIMER_SET(ctx->timeout_ms, nr_stun_client_timer_expired_cb, ctx, &ctx->timer_handle);
return(0);
}
void nr_ice_candidate_pair_role_change(nr_ice_cand_pair *pair)
{
pair->stun_client->params.ice_binding_request.control = pair->pctx->controlling ? NR_ICE_CONTROLLING : NR_ICE_CONTROLLED;
if(pair->state == NR_ICE_PAIR_STATE_IN_PROGRESS) {
/* We could try only restarting in-progress pairs when they receive their
* 487, but this ends up being simpler, because any extra 487 are dropped.
*/
if(!pair->restart_role_change_cb_timer)
NR_ASYNC_TIMER_SET(0,nr_ice_candidate_pair_restart_stun_role_change_cb,pair,&pair->restart_role_change_cb_timer);
}
}
static int nr_stun_client_send_request(nr_stun_client_ctx *ctx)
{
int r,_status;
char string[256];
if (ctx->state != NR_STUN_CLIENT_STATE_RUNNING)
ABORT(R_NOT_PERMITTED);
r_log(NR_LOG_STUN,LOG_DEBUG,"STUN-CLIENT(%s): Sending check request (my_addr=%s,peer_addr=%s)",ctx->label,ctx->my_addr.as_string,ctx->peer_addr.as_string);
if (ctx->request == 0) {
switch (ctx->mode) {
case NR_STUN_CLIENT_MODE_BINDING_REQUEST_LONG_TERM_AUTH:
ctx->params.stun_binding_request.nonce = ctx->nonce;
ctx->params.stun_binding_request.realm = ctx->realm;
assert(0);
ABORT(R_INTERNAL);
/* TODO([email protected]): Need to implement long-term auth for binding
requests */
if ((r=nr_stun_build_req_lt_auth(&ctx->params.stun_binding_request, &ctx->request)))
ABORT(r);
break;
case NR_STUN_CLIENT_MODE_BINDING_REQUEST_SHORT_TERM_AUTH:
if ((r=nr_stun_build_req_st_auth(&ctx->params.stun_binding_request, &ctx->request)))
ABORT(r);
break;
case NR_STUN_CLIENT_MODE_BINDING_REQUEST_NO_AUTH:
if ((r=nr_stun_build_req_no_auth(&ctx->params.stun_binding_request, &ctx->request)))
ABORT(r);
break;
case NR_STUN_CLIENT_MODE_KEEPALIVE:
if ((r=nr_stun_build_keepalive(&ctx->params.stun_keepalive, &ctx->request)))
ABORT(r);
break;
#ifdef USE_STUND_0_96
case NR_STUN_CLIENT_MODE_BINDING_REQUEST_STUND_0_96:
if ((r=nr_stun_build_req_stund_0_96(&ctx->params.stun_binding_request_stund_0_96, &ctx->request)))
ABORT(r);
break;
#endif /* USE_STUND_0_96 */
#ifdef USE_ICE
case NR_ICE_CLIENT_MODE_USE_CANDIDATE:
if ((r=nr_stun_build_use_candidate(&ctx->params.ice_binding_request, &ctx->request)))
ABORT(r);
break;
case NR_ICE_CLIENT_MODE_BINDING_REQUEST:
if ((r=nr_stun_build_req_ice(&ctx->params.ice_binding_request, &ctx->request)))
ABORT(r);
break;
#endif /* USE_ICE */
#ifdef USE_TURN
case NR_TURN_CLIENT_MODE_ALLOCATE_REQUEST:
if ((r=nr_stun_build_allocate_request(&ctx->auth_params, &ctx->params.allocate_request, &ctx->request)))
ABORT(r);
break;
case NR_TURN_CLIENT_MODE_REFRESH_REQUEST:
if ((r=nr_stun_build_refresh_request(&ctx->auth_params, &ctx->params.refresh_request, &ctx->request)))
ABORT(r);
break;
case NR_TURN_CLIENT_MODE_PERMISSION_REQUEST:
if ((r=nr_stun_build_permission_request(&ctx->auth_params, &ctx->params.permission_request, &ctx->request)))
ABORT(r);
break;
case NR_TURN_CLIENT_MODE_SEND_INDICATION:
if ((r=nr_stun_build_send_indication(&ctx->params.send_indication, &ctx->request)))
ABORT(r);
break;
#endif /* USE_TURN */
default:
assert(0);
ABORT(R_FAILED);
break;
}
}
if (ctx->request->length == 0) {
if ((r=nr_stun_encode_message(ctx->request)))
ABORT(r);
}
snprintf(string, sizeof(string)-1, "STUN-CLIENT(%s): Sending to %s ", ctx->label, ctx->peer_addr.as_string);
r_dump(NR_LOG_STUN, LOG_DEBUG, string, (char*)ctx->request->buffer, ctx->request->length);
assert(ctx->my_addr.protocol==ctx->peer_addr.protocol);
if(r=nr_socket_sendto(ctx->sock, ctx->request->buffer, ctx->request->length, 0, &ctx->peer_addr))
ABORT(r);
ctx->request_ct++;
if (NR_STUN_GET_TYPE_CLASS(ctx->request->header.type) == NR_CLASS_INDICATION) {
/* no need to set the timer because indications don't receive a
* response */
}
else {
if (ctx->request_ct >= ctx->maximum_transmits) {
/* Reliable transport only get here once. Unreliable get here for
* their final timeout. */
ctx->timeout_ms += ctx->maximum_transmits_timeout_ms;
}
else if (ctx->timeout_ms) {
/* exponential backoff */
ctx->timeout_ms *= ctx->retransmission_backoff_factor;
}
else {
/* initial timeout unreliable transports */
ctx->timeout_ms = ctx->rto_ms;
}
r_log(NR_LOG_STUN,LOG_DEBUG,"STUN-CLIENT(%s): Next timer will fire in %u ms",ctx->label, ctx->timeout_ms);
gettimeofday(&ctx->timer_set, 0);
assert(ctx->timeout_ms);
NR_ASYNC_TIMER_SET(ctx->timeout_ms, nr_stun_client_timer_expired_cb, ctx, &ctx->timer_handle);
}
_status=0;
abort:
if (_status) {
nr_stun_client_failed(ctx);
}
return(_status);
}
int TestNrSocket::sendto(const void *msg, size_t len,
int flags, nr_transport_addr *to) {
MOZ_ASSERT(internal_socket_->my_addr().protocol != IPPROTO_TCP);
UCHAR *buf = static_cast<UCHAR*>(const_cast<void*>(msg));
if (nat_->block_stun_ &&
nr_is_stun_message(buf, len)) {
return 0;
}
/* TODO: improve the functionality of this in bug 1253657 */
if (!nat_->enabled_ || nat_->is_an_internal_tuple(*to)) {
if (nat_->delay_stun_resp_ms_ &&
nr_is_stun_response_message(buf, len)) {
NR_ASYNC_TIMER_SET(nat_->delay_stun_resp_ms_,
process_delayed_cb,
new DeferredPacket(this, msg, len, flags, to,
internal_socket_),
&timer_handle_);
return 0;
}
return internal_socket_->sendto(msg, len, flags, to);
}
destroy_stale_port_mappings();
if (to->protocol == IPPROTO_UDP && nat_->block_udp_) {
// Silently eat the packet
return 0;
}
// Choose our port mapping based on our most selective criteria
PortMapping *port_mapping = get_port_mapping(*to,
std::max(nat_->filtering_type_,
nat_->mapping_type_));
if (!port_mapping) {
// See if we have already made the external socket we need to use.
PortMapping *similar_port_mapping =
get_port_mapping(*to, nat_->mapping_type_);
RefPtr<NrSocketBase> external_socket;
if (similar_port_mapping) {
external_socket = similar_port_mapping->external_socket_;
} else {
external_socket = create_external_socket(*to);
if (!external_socket) {
MOZ_ASSERT(false);
return R_INTERNAL;
}
}
port_mapping = create_port_mapping(*to, external_socket);
port_mappings_.push_back(port_mapping);
if (poll_flags() & PR_POLL_READ) {
// Make sure the new port mapping is ready to receive traffic if the
// TestNrSocket is already waiting.
port_mapping->async_wait(NR_ASYNC_WAIT_READ,
socket_readable_callback,
this,
(char*)__FUNCTION__,
__LINE__);
}
}
// We probably don't want to propagate the flags, since this is a simulated
// external IP address.
return port_mapping->sendto(msg, len, *to);
}
static void nr_ice_candidate_pair_stun_cb(NR_SOCKET s, int how, void *cb_arg)
{
int r,_status;
nr_ice_cand_pair *pair=cb_arg,*orig_pair;
nr_ice_candidate *cand=0;
nr_stun_message *sres;
nr_transport_addr *request_src;
nr_transport_addr *request_dst;
nr_transport_addr *response_src;
nr_transport_addr response_dst;
nr_stun_message_attribute *attr;
pair->stun_cb_timer=0;
r_log(LOG_ICE,LOG_DEBUG,"ICE-PEER(%s)/STREAM(%s)/CAND-PAIR(%s): STUN cb on pair addr = %s",
pair->pctx->label,pair->local->stream->label,pair->codeword,pair->as_string);
/* This ordinarily shouldn't happen, but can if we're
doing the second check to confirm nomination.
Just bail out */
if(pair->state==NR_ICE_PAIR_STATE_SUCCEEDED)
goto done;
switch(pair->stun_client->state){
case NR_STUN_CLIENT_STATE_FAILED:
sres=pair->stun_client->response;
if(sres && nr_stun_message_has_attribute(sres,NR_STUN_ATTR_ERROR_CODE,&attr)&&attr->u.error_code.number==487){
r_log(LOG_ICE,LOG_INFO,"ICE-PEER(%s)/CAND-PAIR(%s): detected role conflict. Switching to controlled",pair->pctx->label,pair->codeword);
pair->pctx->controlling=0;
/* Only restart if we haven't tried this already */
if(!pair->restart_controlled_cb_timer)
NR_ASYNC_TIMER_SET(0,nr_ice_candidate_pair_restart_stun_controlled_cb,pair,&pair->restart_controlled_cb_timer);
return;
}
/* Fall through */
case NR_STUN_CLIENT_STATE_TIMED_OUT:
nr_ice_candidate_pair_set_state(pair->pctx,pair,NR_ICE_PAIR_STATE_FAILED);
break;
case NR_STUN_CLIENT_STATE_DONE:
/* make sure the addresses match up S 7.1.2.2 */
response_src=&pair->stun_client->peer_addr;
request_dst=&pair->remote->addr;
if (nr_transport_addr_cmp(response_src,request_dst,NR_TRANSPORT_ADDR_CMP_MODE_ALL)){
r_log(LOG_ICE,LOG_WARNING,"ICE-PEER(%s)/CAND-PAIR(%s): Peer address mismatch %s != %s",pair->pctx->label,pair->codeword,response_src->as_string,request_dst->as_string);
nr_ice_candidate_pair_set_state(pair->pctx,pair,NR_ICE_PAIR_STATE_FAILED);
break;
}
request_src=&pair->stun_client->my_addr;
nr_socket_getaddr(pair->local->osock,&response_dst);
if (nr_transport_addr_cmp(request_src,&response_dst,NR_TRANSPORT_ADDR_CMP_MODE_ALL)){
r_log(LOG_ICE,LOG_WARNING,"ICE-PEER(%s)/CAND-PAIR(%s): Local address mismatch %s != %s",pair->pctx->label,pair->codeword,request_src->as_string,response_dst.as_string);
nr_ice_candidate_pair_set_state(pair->pctx,pair,NR_ICE_PAIR_STATE_FAILED);
break;
}
if(strlen(pair->stun_client->results.ice_binding_response.mapped_addr.as_string)==0){
/* we're using the mapped_addr returned by the server to lookup our
* candidate, but if the server fails to do that we can't perform
* the lookup -- this may be a BUG because if we've gotten here
* then the transaction ID check succeeded, and perhaps we should
* just assume that it's the server we're talking to and that our
* peer is ok, but I'm not sure how that'll interact with the
* peer reflexive logic below */
r_log(LOG_ICE,LOG_WARNING,"ICE-PEER(%s)/CAND-PAIR(%s): server failed to return mapped address on pair %s", pair->pctx->label,pair->codeword,pair->as_string);
nr_ice_candidate_pair_set_state(pair->pctx,pair,NR_ICE_PAIR_STATE_FAILED);
break;
}
else if(!nr_transport_addr_cmp(&pair->local->addr,&pair->stun_client->results.ice_binding_response.mapped_addr,NR_TRANSPORT_ADDR_CMP_MODE_ALL)){
nr_ice_candidate_pair_set_state(pair->pctx,pair,NR_ICE_PAIR_STATE_SUCCEEDED);
}
else{
/* OK, this didn't correspond to a pair on the check list, but
it probably matches one of our candidates */
cand=TAILQ_FIRST(&pair->local->component->candidates);
while(cand){
if(!nr_transport_addr_cmp(&cand->addr,&pair->stun_client->results.ice_binding_response.mapped_addr,NR_TRANSPORT_ADDR_CMP_MODE_ALL))
break;
cand=TAILQ_NEXT(cand,entry_comp);
}
/* OK, nothing found, must be peer reflexive */
if(!cand){
if(r=nr_ice_candidate_create(pair->pctx->ctx,
pair->local->component,pair->local->isock,pair->local->osock,
PEER_REFLEXIVE,0,pair->local->component->component_id,&cand))
ABORT(r);
if(r=nr_transport_addr_copy(&cand->addr,&pair->stun_client->results.ice_binding_response.mapped_addr))
ABORT(r);
cand->state=NR_ICE_CAND_STATE_INITIALIZED;
TAILQ_INSERT_TAIL(&pair->local->component->candidates,cand,entry_comp);
}
/* Note: we stomp the existing pair! */
orig_pair=pair;
if(r=nr_ice_candidate_pair_create(pair->pctx,cand,pair->remote,
&pair))
ABORT(r);
nr_ice_candidate_pair_set_state(pair->pctx,pair,NR_ICE_PAIR_STATE_SUCCEEDED);
if(r=nr_ice_candidate_pair_insert(&pair->remote->stream->check_list,pair))
ABORT(r);
/* If the original pair was nominated, make us nominated,
since we replace him*/
if(orig_pair->peer_nominated)
pair->peer_nominated=1;
/* Now mark the orig pair failed */
nr_ice_candidate_pair_set_state(orig_pair->pctx,orig_pair,NR_ICE_PAIR_STATE_FAILED);
}
/* Should we set nominated? */
if(pair->pctx->controlling){
if(pair->pctx->ctx->flags & NR_ICE_CTX_FLAGS_AGGRESSIVE_NOMINATION)
pair->nominated=1;
}
else{
if(pair->peer_nominated)
pair->nominated=1;
}
/* increment the number of valid pairs in the component */
/* We don't bother to maintain a separate valid list */
pair->remote->component->valid_pairs++;
/* S 7.1.2.2: unfreeze other pairs with the same foundation*/
if(r=nr_ice_media_stream_unfreeze_pairs_foundation(pair->remote->stream,pair->foundation))
ABORT(r);
/* Deal with this pair being nominated */
if(pair->nominated){
if(r=nr_ice_component_nominated_pair(pair->remote->component, pair))
ABORT(r);
}
break;
default:
ABORT(R_INTERNAL);
}
/* If we're controlling but in regular mode, ask the handler
if he wants to nominate something and stop... */
if(pair->pctx->controlling && !(pair->pctx->ctx->flags & NR_ICE_CTX_FLAGS_AGGRESSIVE_NOMINATION)){
if(r=nr_ice_component_select_pair(pair->pctx,pair->remote->component)){
if(r!=R_NOT_FOUND)
ABORT(r);
}
}
done:
_status=0;
abort:
return;
}
static int nr_stun_client_send_request(nr_stun_client_ctx *ctx)
{
int r,_status;
char string[256];
if (ctx->state != NR_STUN_CLIENT_STATE_RUNNING)
ABORT(R_NOT_PERMITTED);
r_log(NR_LOG_STUN,LOG_DEBUG,"STUN-CLIENT(%s): Sending(my_addr=%s,peer_addr=%s)",ctx->label,ctx->my_addr.as_string,ctx->peer_addr.as_string);
if (ctx->request == 0) {
switch (ctx->mode) {
case NR_STUN_CLIENT_MODE_BINDING_REQUEST_LONG_TERM_AUTH:
ctx->params.stun_binding_request.nonce = ctx->nonce;
ctx->params.stun_binding_request.realm = ctx->realm;
if ((r=nr_stun_build_req_lt_auth(&ctx->params.stun_binding_request, &ctx->request)))
ABORT(r);
break;
case NR_STUN_CLIENT_MODE_BINDING_REQUEST_SHORT_TERM_AUTH:
if ((r=nr_stun_build_req_st_auth(&ctx->params.stun_binding_request, &ctx->request)))
ABORT(r);
break;
case NR_STUN_CLIENT_MODE_BINDING_REQUEST_NO_AUTH:
if ((r=nr_stun_build_req_no_auth(&ctx->params.stun_binding_request, &ctx->request)))
ABORT(r);
break;
case NR_STUN_CLIENT_MODE_KEEPALIVE:
if ((r=nr_stun_build_keepalive(&ctx->params.stun_keepalive, &ctx->request)))
ABORT(r);
break;
#ifdef USE_STUND_0_96
case NR_STUN_CLIENT_MODE_BINDING_REQUEST_STUND_0_96:
if ((r=nr_stun_build_req_stund_0_96(&ctx->params.stun_binding_request_stund_0_96, &ctx->request)))
ABORT(r);
break;
#endif /* USE_STUND_0_96 */
#ifdef USE_ICE
case NR_ICE_CLIENT_MODE_USE_CANDIDATE:
if ((r=nr_stun_build_use_candidate(&ctx->params.ice_use_candidate, &ctx->request)))
ABORT(r);
break;
case NR_ICE_CLIENT_MODE_BINDING_REQUEST:
if ((r=nr_stun_build_req_ice(&ctx->params.ice_binding_request, &ctx->request)))
ABORT(r);
break;
#endif /* USE_ICE */
#ifdef USE_TURN
case NR_TURN_CLIENT_MODE_ALLOCATE_REQUEST1:
if ((r=nr_stun_build_allocate_request1(&ctx->params.allocate_request1, &ctx->request)))
ABORT(r);
break;
case NR_TURN_CLIENT_MODE_ALLOCATE_REQUEST2:
if ((r=nr_stun_build_allocate_request2(&ctx->params.allocate_request2, &ctx->request)))
ABORT(r);
break;
case NR_TURN_CLIENT_MODE_SEND_INDICATION:
if ((r=nr_stun_build_send_indication(&ctx->params.send_indication, &ctx->request)))
ABORT(r);
break;
case NR_TURN_CLIENT_MODE_SET_ACTIVE_DEST_REQUEST:
if ((r=nr_stun_build_set_active_dest_request(&ctx->params.set_active_dest_request, &ctx->request)))
ABORT(r);
break;
case NR_TURN_CLIENT_MODE_DATA_INDICATION:
if ((r=nr_stun_build_data_indication(&ctx->params.data_indication, &ctx->request)))
ABORT(r);
break;
#endif /* USE_TURN */
default:
assert(0);
ABORT(R_FAILED);
break;
}
}
if (ctx->request->length == 0) {
if ((r=nr_stun_encode_message(ctx->request)))
ABORT(r);
}
snprintf(string, sizeof(string)-1, "STUN-CLIENT(%s): Sending to %s ", ctx->label, ctx->peer_addr.as_string);
r_dump(NR_LOG_STUN, LOG_DEBUG, string, (char*)ctx->request->buffer, ctx->request->length);
if(r=nr_socket_sendto(ctx->sock, ctx->request->buffer, ctx->request->length, 0, &ctx->peer_addr))
ABORT(r);
ctx->request_ct++;
if (NR_STUN_GET_TYPE_CLASS(ctx->request->header.type) == NR_CLASS_INDICATION) {
/* no need to set the timer because indications don't receive a
* response */
}
else {
if (ctx->request_ct < ctx->maximum_transmits) {
ctx->timeout_ms *= ctx->retransmission_backoff_factor;
ctx->timeout_ms += ctx->rto_ms;
}
else {
ctx->timeout_ms += ctx->final_retransmit_backoff_ms;
}
r_log(NR_LOG_STUN,LOG_DEBUG,"STUN-CLIENT(%s): Next timer will fire in %u ms",ctx->label, ctx->timeout_ms);
gettimeofday(&ctx->timer_set, 0);
NR_ASYNC_TIMER_SET(ctx->timeout_ms, nr_stun_client_timer_expired_cb, ctx, &ctx->timer_handle);
}
_status=0;
abort:
if (_status) {
ctx->state=NR_STUN_CLIENT_STATE_FAILED;
}
return(_status);
}