// send a binding request to a duplex server instructing it to send back on it's alternate port and alternate IP to an alternate client port
HRESULT CTestMessageHandler::Test2()
{
HRESULT hr=S_OK;
CStunMessageBuilder builder;
CSocketAddress clientaddr(0x12345678, 9876);
CSocketAddress recvaddr;
uint16_t responsePort = 2222;
CRefCountedBuffer spBuffer;
CStunThreadMessageHandler handler;
CStunMessageReader reader;
CStunMessageReader::ReaderParseState state;
::StunChangeRequestAttribute changereq;
StunMessageEnvelope message;
_spTransport->Reset();
_spTransport->AddPP(CSocketAddress(0xaaaaaaaa, 1234));
_spTransport->AddPA(CSocketAddress(0xaaaaaaaa, 1235));
_spTransport->AddAP(CSocketAddress(0xbbbbbbbb, 1234));
_spTransport->AddAA(CSocketAddress(0xbbbbbbbb, 1235));
InitBindingRequest(builder);
builder.AddResponsePort(responsePort);
changereq.fChangeIP = true;
changereq.fChangePort = true;
builder.AddChangeRequest(changereq);
builder.AddResponsePort(responsePort);
builder.GetResult(&spBuffer);
message.localSocket = RolePP;
message.remoteAddr = clientaddr;
message.spBuffer = spBuffer;
_spTransport->GetSocketAddressForRole(RolePP, &(message.localAddr));
handler.SetResponder(_spTransport);
handler.ProcessRequest(message);
spBuffer->Reset();
_spTransport->GetOutputStream().GetBuffer(&spBuffer);
// parse the response
state = reader.AddBytes(spBuffer->GetData(), spBuffer->GetSize());
ChkIfA(state != CStunMessageReader::BodyValidated, E_FAIL);
// validate that the binding response matches our expectations
ChkA(ValidateMappedAddress(reader, clientaddr));
ChkA(ValidateOriginAddress(reader, RoleAA));
// did it get sent back to where we thought it was
recvaddr = clientaddr;
recvaddr.SetPort(responsePort);
ChkA(ValidateResponseAddress(recvaddr));
Cleanup:
return hr;
}
// Test2 - send a binding request to a duplex server instructing it to send back on it's alternate port and alternate IP to an alternate client port
HRESULT CTestMessageHandler::Test2()
{
HRESULT hr = S_OK;
CStunMessageBuilder builder;
CRefCountedBuffer spBuffer, spBufferOut(new CBuffer(MAX_STUN_MESSAGE_SIZE));
CStunMessageReader reader;
StunMessageIn msgIn;
StunMessageOut msgOut;
TransportAddressSet tas = {};
uint16_t responsePort = 2222;
StunChangeRequestAttribute changereq;
CStunMessageReader::ReaderParseState state;
CSocketAddress addrDestExpected;
InitTransportAddressSet(tas, true, true, true, true);
InitBindingRequest(builder);
builder.AddResponsePort(responsePort);
changereq.fChangeIP = true;
changereq.fChangePort = true;
builder.AddChangeRequest(changereq);
builder.AddResponsePort(responsePort);
builder.GetResult(&spBuffer);
ChkIfA(CStunMessageReader::BodyValidated != reader.AddBytes(spBuffer->GetData(), spBuffer->GetSize()), E_FAIL);
msgIn.fConnectionOriented = false;
msgIn.addrLocal = _addrServerPP;
msgIn.pReader = &reader;
msgIn.socketrole = RolePP;
msgIn.addrRemote = _addrMapped;
msgOut.socketrole = RolePP; // deliberate initialized wrong
msgOut.spBufferOut = spBufferOut;
ChkA(CStunRequestHandler::ProcessRequest(msgIn, msgOut, &tas, NULL));
// parse the response
reader.Reset();
state = reader.AddBytes(spBufferOut->GetData(), spBufferOut->GetSize());
ChkIfA(state != CStunMessageReader::BodyValidated, E_FAIL);
// validate that the message was sent back from the AA
ChkIfA(msgOut.socketrole != RoleAA, E_FAIL);
// validate that the server though it was sending back from the AA
ChkA(ValidateResponseOriginAddress(reader, _addrServerAA));
// validate that the message was sent to the response port requested
addrDestExpected = _addrMapped;
addrDestExpected.SetPort(responsePort);
ChkIfA(addrDestExpected.IsSameIP_and_Port(msgOut.addrDest)==false, E_FAIL);
// validate that the binding response came back
ChkA(ValidateMappedAddress(reader, _addrMapped, false));
// the "other" address is still AA (See RFC 3489 - section 8.1)
ChkA(ValidateOtherAddress(reader, _addrServerAA));
Cleanup:
return hr;
}