void
StunClient_HandleICMP(STUN_CLIENT_DATA* clientData,
const struct sockaddr* srcAddr,
uint32_t ICMPtype)
{
if (clientData == NULL)
{
return;
}
/* Todo: Test if this is for me.. */
StunPrint(clientData->logUserData,
clientData->Log_cb,
StunInfoCategory_Trace,
"<STUNTRACE> StunClient_HandleICMP: Got ICMP type: %i\n ",
ICMPtype);
if ( isTimeExceeded(ICMPtype, srcAddr->sa_family) ||
isDstUnreachable(ICMPtype,srcAddr->sa_family) )
{
for (int i = 0; i < MAX_STUN_TRANSACTIONS; i++)
{
STUN_TRANSACTION_DATA* trans = &clientData->data[i];
if ( trans->inUse &&
TransIdIsEqual(&clientData->traceResult.currStunMsgId,
&trans->stunBindReq.transactionId) )
{
StunRespStruct m;
gettimeofday(&trans->stop[trans->retransmits], NULL);
/* memcpy(&m.stunRespMessage, msg, sizeof(m.stunRespMessage)); */
sockaddr_copy( (struct sockaddr*)&m.srcAddr, srcAddr );
m.ICMPtype = ICMPtype;
m.ttl = clientData->traceResult.currentTTL;
StunClientMain(clientData, i, STUN_SIGNAL_ICMPResp, (void*)&m);
return;
}
}
}
else
{
StunPrint(clientData->logUserData,
clientData->Log_cb,
StunInfoCategory_Trace,
"<STUNTRACE> StunClient_HandleICMP: Ignoring ICMP Type, nothing to do\n ",
ICMPtype);
}
}
CTEST(stuntrace, isTimeExceeded)
{
ASSERT_TRUE( isTimeExceeded(11, AF_INET) );
ASSERT_FALSE( isTimeExceeded(3, AF_INET) );
ASSERT_FALSE( isTimeExceeded(5, AF_INET) );
ASSERT_TRUE( isTimeExceeded(3, AF_INET6) );
ASSERT_FALSE( isTimeExceeded(11, AF_INET6) );
ASSERT_FALSE( isTimeExceeded(5, AF_INET6) );
}
void
handleStunRespIcmp(struct hiutResult* result,
int ICMPtype,
int ttl,
struct sockaddr* srcAddr,
int rtt,
int retransmits)
{
if ( (ttl == MAX_TTL) &&
isDstUnreachable(ICMPtype, srcAddr->sa_family) )
{
/* Part of far end alive test */
result->remoteAlive = true;
result->currentTTL = 1;
stunlib_createId(&result->currStunMsgId);
StunClient_startSTUNTrace( (STUN_CLIENT_DATA*)result->stunCtx,
result,
(struct sockaddr*)&result->remoteAddr,
(struct sockaddr*)&result->localAddr,
false,
result->username,
result->password,
result->currentTTL,
result->currStunMsgId,
result->sockfd,
result->sendFunc,
StunStatusCallBack,
NULL );
return;
}
if ( isTimeExceeded(ICMPtype, srcAddr->sa_family) )
{
if (result->currentTTL < result->user_max_ttl - 1)
{
result->currentTTL++;
while (result->pathElement[result->currentTTL].inactive &&
result->currentTTL < result->path_max_ttl)
{
result->currentTTL++;
}
if (result->currentTTL <= result->path_max_ttl)
{
sendCallback(result,
srcAddr,
ttl,
rtt,
retransmits,
false,
false);
stunlib_createId(&result->currStunMsgId);
StunClient_startSTUNTrace( (STUN_CLIENT_DATA*)result->stunCtx,
result,
(struct sockaddr*)&result->remoteAddr,
(struct sockaddr*)&result->localAddr,
false,
result->username,
result->password,
result->currentTTL,
result->currStunMsgId,
result->sockfd,
result->sendFunc,
StunStatusCallBack,
NULL );
return;
}
}
bool done = result->num_traces < result->max_recuring ? false : true;
sendCallback(result,
srcAddr,
ttl,
rtt,
retransmits,
true,
done);
resartIfNotDone(result);
}
else if ( isDstUnreachable(ICMPtype,srcAddr->sa_family) )
{
bool done = result->num_traces < result->max_recuring ? false : true;
if (result->path_max_ttl >= ttl)
{
result->path_max_ttl = ttl;
sendCallback(result,
srcAddr,
ttl,
rtt,
retransmits,
true,
done);
resartIfNotDone(result);
}
}
}
