[reSIProcate] SipStack process CANCEL problem!
resiprocate-devel,你好
When TU send an INVITE to external,then TU send CANCEL to external ,but
TransationState not received 1xx,
the stack process the CANCEL,and return INVITE 487, delete the
ClientTransaction,and ;
The stack don't terminateClientTransaction and create a TransactionTerminated
Message to TU!
Is it a bug ?
The source Code in TransactionState.cxx:
TransactionState* matchingInvite =
controller.mClientTransactionMap.find(sip->getTransactionId());
if (matchingInvite == 0)
{
InfoLog (<< "No matching INVITE for incoming (from TU) CANCEL
to uac");
TransactionState::sendToTU(tu, controller,
Helper::makeResponse(*sip,481));
delete sip;
}
else if (matchingInvite->mState == Calling) // CANCEL before 1xx
received
{
WarningLog(<< "You can't CANCEL a request until a provisional
has been received");
StackLog (<< *matchingInvite);
StackLog (<< *sip);
// if no INVITE had been sent out yet. -- i.e. dns result not
// processed yet
// The CANCEL was received before the INVITE was sent
// This can happen in odd cases. Too common to assert.
// Be graceful.
TransactionState::sendToTU(tu, controller,
Helper::makeResponse(*sip, 200));
matchingInvite->sendToTU(Helper::makeResponse(*matchingInvite->mMsgToRetransmit,
487));
delete matchingInvite;
delete sip;
}
fancy_xiao,fancy_xiao@xxxxxxxxxxx
2007-05-31