Пример #1
0
HRESULT CBehaviorTest::GetMessage(CRefCountedBuffer& spMsg, CSocketAddress* pAddrDest)
{
    HRESULT hr = S_OK;
    ASSERT(spMsg->GetAllocatedSize() > 0);
    ASSERT(pAddrDest);
    
    StunChangeRequestAttribute attribChangeRequest = {};

    CStunMessageBuilder builder;
    builder.GetStream().Attach(spMsg, true);
    StartBindingRequest(builder);
    
    builder.AddChangeRequest(attribChangeRequest); // adding a blank CHANGE-REQUEST, because a JSTUN server will not respond if the request doesn't have one
    
    builder.FixLengthField();

    if (_fIsTest3 == false)
    {
        *pAddrDest = _pResults->addrAP;
    }
    else
    {
        *pAddrDest = _pResults->addrAA;
    }

    return hr;
}
HRESULT CFilteringTest::GetMessage(CRefCountedBuffer& spMsg, CSocketAddress* pAddrDest)
{
    CStunMessageBuilder builder;
    StunChangeRequestAttribute change;


    builder.GetStream().Attach(spMsg, true);

    StartBindingRequest(builder);

    *pAddrDest = _pConfig->addrServer;

    if (_fIsTest3 == false)
    {
        change.fChangeIP = true;
        change.fChangePort = true;
        builder.AddChangeRequest(change);
    }
    else
    {
        change.fChangeIP = false;
        change.fChangePort = true;
        builder.AddChangeRequest(change);
    }

    builder.FixLengthField();


    return S_OK;
}
HRESULT CTestMessageHandler::InitBindingRequest(CStunMessageBuilder& builder)
{
    StunTransactionId transid;
    builder.AddHeader(StunMsgTypeBinding, StunMsgClassRequest);
    builder.AddRandomTransactionId(&transid);
    builder.FixLengthField();
    return S_OK;
}
Пример #4
0
// Test1 - just do a basic binding request
HRESULT CTestMessageHandler::Test1()
{
    HRESULT hr = S_OK;
    CStunMessageBuilder builder;
    CRefCountedBuffer spBuffer, spBufferOut(new CBuffer(MAX_STUN_MESSAGE_SIZE));
    CStunMessageReader reader;
    StunMessageIn msgIn;
    StunMessageOut msgOut;
    TransportAddressSet tas = {};
    
    InitTransportAddressSet(tas, true, true, true, true);
    
    ChkA(InitBindingRequest(builder));
    
  
    Chk(builder.GetResult(&spBuffer));
    
    ChkIfA(CStunMessageReader::BodyValidated != reader.AddBytes(spBuffer->GetData(), spBuffer->GetSize()), E_FAIL);

    // a message send to the PP socket on the server from the 
    msgIn.socketrole = RolePP;
    msgIn.addrRemote = _addrMapped;
    msgIn.pReader = &reader;
    msgIn.addrLocal = _addrServerPP;
    msgIn.fConnectionOriented = false;
    
    spBuffer.reset();
    
    msgOut.spBufferOut = spBufferOut;
    msgOut.socketrole = RoleAA; // deliberately wrong - so we can validate if it got changed to RolePP
    
    ChkA(CStunRequestHandler::ProcessRequest(msgIn, msgOut, &tas, NULL));
    
    reader.Reset();
    ChkIfA(CStunMessageReader::BodyValidated != reader.AddBytes(spBufferOut->GetData(), spBufferOut->GetSize()), E_FAIL);

    
    // validate that the message returned is a success response for a binding request
    ChkIfA(reader.GetMessageClass() != StunMsgClassSuccessResponse, E_FAIL);
    ChkIfA(reader.GetMessageType() != (uint16_t)StunMsgTypeBinding, E_FAIL);
    
    
    // Validate that the message came from the server port we expected
    //    and that it's the same address the server set for the origin address
    ChkIfA(msgOut.socketrole != RolePP, E_FAIL);
    ChkA(ValidateResponseOriginAddress(reader, _addrServerPP));
    ChkIfA(msgOut.addrDest.IsSameIP_and_Port(_addrMapped)==false, E_FAIL);
    
    // validate that the mapping was done correctly
    ChkA(ValidateMappedAddress(reader, _addrMapped, false));
    
    ChkA(ValidateOtherAddress(reader, _addrServerAA));

    
Cleanup:
    return hr;
}
Пример #5
0
// This test validates that the construction and parsing of the message integrity attribute in a stun message works as expected
// The test also validates both short term and long term credential modes with or without the presence of a fingerprint attribute
HRESULT CTestIntegrity::TestMessageIntegrity(bool fWithFingerprint, bool fLongCredentials)
{
    HRESULT hr = S_OK;
    
    const char* pszUserName = "******";
    const char* pszRealm = "stunrealm";
    const char* pszPassword = "******";
    
    CStunMessageBuilder builder;
    CStunMessageReader reader;
    uint8_t *pMsg = NULL;
    size_t sizeMsg = 0;
    CStunMessageReader::ReaderParseState state;
    CRefCountedBuffer spBuffer;
    
    builder.AddBindingRequestHeader();
    builder.AddRandomTransactionId(NULL);
    builder.AddUserName(pszUserName);
    builder.AddRealm(pszRealm);
    
    
    if (fLongCredentials == false)
    {
        Chk(builder.AddMessageIntegrityShortTerm(pszPassword));
    }
    else
    {
        Chk(builder.AddMessageIntegrityLongTerm(pszUserName, pszRealm, pszPassword));
    }
    
    if (fWithFingerprint)
    {
        builder.AddFingerprintAttribute();
    }
    
    Chk(builder.GetResult(&spBuffer));
    
    pMsg = spBuffer->GetData();
    sizeMsg = spBuffer->GetSize();
    
    state = reader.AddBytes(pMsg, sizeMsg);
    
    ChkIfA(state != CStunMessageReader::BodyValidated, E_FAIL);
    
    ChkIfA(reader.HasMessageIntegrityAttribute()==false, E_FAIL);
    
    if (fLongCredentials == false)
    {
        ChkA(reader.ValidateMessageIntegrityShort(pszPassword));
    }
    else
    {
        ChkA(reader.ValidateMessageIntegrityLong(pszUserName, pszRealm, pszPassword));
    }
    
Cleanup:
    return hr;
}
HRESULT CStunClientTestBase::StartBindingRequest(CStunMessageBuilder& builder)
{
    builder.AddBindingRequestHeader();

    if (IsTransactionIdValid(_transid))
    {
        builder.AddTransactionId(_transid);
    }
    else
    {
        builder.AddRandomTransactionId(&_transid);
    }
    return S_OK;
}
// Test1 - just do a basic binding request
HRESULT CTestMessageHandler::Test1()
{
    HRESULT hr=S_OK;
    CStunMessageBuilder builder;
    CSocketAddress clientaddr(0x12345678, 9876);
    CRefCountedBuffer spBuffer;
    CStunThreadMessageHandler handler;
    CStunMessageReader reader;
    CStunMessageReader::ReaderParseState state;
    StunMessageEnvelope message;

    _spTransport->Reset();
    _spTransport->AddPP(CSocketAddress(0xaaaaaaaa, 1234));

    InitBindingRequest(builder);

    builder.GetStream().GetBuffer(&spBuffer);

    handler.SetResponder(_spTransport);
    
    
    message.localSocket = RolePP;
    message.remoteAddr = clientaddr;
    message.spBuffer = spBuffer;
    _spTransport->GetSocketAddressForRole(message.localSocket, &(message.localAddr));
    
    handler.ProcessRequest(message);


    spBuffer.reset();
    _spTransport->GetOutputStream().GetBuffer(&spBuffer);

    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));
    
    // validate that it came from the server port we expected
    ChkA(ValidateOriginAddress(reader, RolePP));

    // did we get back the binding request we expected
    ChkA(ValidateResponseAddress(clientaddr));
    
Cleanup:

    return hr;
}
Пример #8
0
HRESULT CTestMessageHandler::SendHelper(CStunMessageBuilder& builderRequest, CStunMessageReader* pReaderResponse, IStunAuth* pAuth)
{
    CRefCountedBuffer spBufferRequest;
    CRefCountedBuffer spBufferResponse(new CBuffer(MAX_STUN_MESSAGE_SIZE));
    StunMessageIn msgIn;
    StunMessageOut msgOut;
    CStunMessageReader reader;
    CSocketAddress addrDest;
    TransportAddressSet tas;
    HRESULT hr = S_OK;
    
    
    InitTransportAddressSet(tas, true, true, true, true);
    
    builderRequest.GetResult(&spBufferRequest);
    
    ChkIf(CStunMessageReader::BodyValidated != reader.AddBytes(spBufferRequest->GetData(), spBufferRequest->GetSize()), E_FAIL);
    
    msgIn.fConnectionOriented = false;
    msgIn.addrLocal = _addrServerPP;
    msgIn.pReader = &reader;
    msgIn.socketrole = RolePP;
    msgIn.addrRemote = _addrMapped;
    
    msgOut.spBufferOut = spBufferResponse;
    
    ChkA(CStunRequestHandler::ProcessRequest(msgIn, msgOut, &tas, pAuth));
    
    ChkIf(CStunMessageReader::BodyValidated != pReaderResponse->AddBytes(spBufferResponse->GetData(), spBufferResponse->GetSize()), E_FAIL);
    
Cleanup:
    
    return hr;
    
}
HRESULT CBasicBindingTest::GetMessage(CRefCountedBuffer& spMsg, CSocketAddress* pAddrDest)
{
    HRESULT hr = S_OK;
    ASSERT(spMsg->GetAllocatedSize() > 0);
    ASSERT(pAddrDest);
    ASSERT(_fInit);

    CStunMessageBuilder builder;
    builder.GetStream().Attach(spMsg, true);

    Chk(StartBindingRequest(builder));
    builder.FixLengthField();

    *pAddrDest = _pConfig->addrServer;


Cleanup:
    return hr;
}
Пример #10
0
// this test validates that IPV6 addresses work fine with CStunMessageBuilder and CStunMessageReader
HRESULT CTestBuilder::Test2()
{
    HRESULT hr = S_OK;
    CSocketAddress addr(0,0);
    CSocketAddress addrValidate(0,0);
    const char* ip6addr = "ABCDEFGHIJKLMNOP";
    sockaddr_in6 addr6 = {};
    CStunMessageReader reader;
    StunTransactionId transid;
    CStunMessageBuilder builder;
    CRefCountedBuffer spBuffer;

    addr6.sin6_family = AF_INET6;
    addr6.sin6_port = htons(9999);
    memcpy(addr6.sin6_addr.s6_addr, ip6addr, 16);
    addr = CSocketAddress(addr6);

    ChkA(builder.AddHeader(StunMsgTypeBinding, StunMsgClassRequest));
    ChkA(builder.AddRandomTransactionId(&transid));
    ChkA(builder.AddMappedAddress(addr));
    ChkA(builder.AddXorMappedAddress(addr));
    ChkA(builder.GetResult(&spBuffer));

    ChkIfA(CStunMessageReader::BodyValidated != reader.AddBytes(spBuffer->GetData(), spBuffer->GetSize()), E_FAIL);

    ChkA(reader.GetXorMappedAddress(&addrValidate));
    
    ChkIf(addrValidate.IsSameIP_and_Port(addr) == false, E_FAIL);

Cleanup:
    return hr;
}
HRESULT CBehaviorTest::GetMessage(CRefCountedBuffer& spMsg, CSocketAddress* pAddrDest)
{
    HRESULT hr = S_OK;
    ASSERT(spMsg->GetAllocatedSize() > 0);
    ASSERT(pAddrDest);

    CStunMessageBuilder builder;
    builder.GetStream().Attach(spMsg, true);
    StartBindingRequest(builder);
    builder.FixLengthField();

    if (_fIsTest3 == false)
    {
        *pAddrDest = _pResults->addrAP;
    }
    else
    {
        *pAddrDest = _pResults->addrAA;
    }

    return hr;
}
Пример #12
0
void CStunThreadMessageHandler::SendErrorResponse()
{
    HRESULT hr = S_OK;

    CStunMessageBuilder builder;
    CRefCountedBuffer spBuffer;

    _spResponseBuffer->SetSize(0);
    builder.GetStream().Attach(_spResponseBuffer, true);

    builder.AddHeader((StunMessageType)_error.msgtype, _error.msgclass);
    builder.AddTransactionId(_transid);
    builder.AddErrorCode(_error.errorcode, "FAILED");
    if ((_error.errorcode == ::STUN_ERROR_UNKNOWNATTRIB) && (_error.attribUnknown != 0))
    {
        builder.AddUnknownAttributes(&_error.attribUnknown, 1);
    }
    else if ((_error.errorcode == ::STUN_ERROR_STALENONCE) || (_error.errorcode == ::STUN_ERROR_UNAUTHORIZED))
    {
        if (_error.szNonce[0])
        {
            builder.AddStringAttribute(STUN_ATTRIBUTE_NONCE, _error.szNonce);
        }
        
        if (_error.szRealm[0])
        {
            builder.AddStringAttribute(STUN_ATTRIBUTE_REALM, _error.szRealm);
        }
    }

    ChkIfA(_spStunResponder == NULL, E_FAIL);

    builder.GetResult(&spBuffer);

    ASSERT(spBuffer->GetSize() != 0);
    ASSERT(spBuffer == _spResponseBuffer);

    _spStunResponder->SendResponse(_socketOutput, _addrResponse, spBuffer);

Cleanup:
    return;

}
Пример #13
0
HRESULT CBasicBindingTest::GetMessage(CRefCountedBuffer& spMsg, CSocketAddress* pAddrDest)
{
    StunChangeRequestAttribute attribChangeRequest = {};
        
    HRESULT hr = S_OK;
    ASSERT(spMsg->GetAllocatedSize() > 0);
    ASSERT(pAddrDest);
    ASSERT(_fInit);

    CStunMessageBuilder builder;
    builder.GetStream().Attach(spMsg, true);

    Chk(StartBindingRequest(builder));
    
    builder.AddChangeRequest(attribChangeRequest); // adding a blank CHANGE-REQUEST, because a JSTUN server will not respond if the request doesn't have one
    
    builder.FixLengthField();

    *pAddrDest = _pConfig->addrServer;


Cleanup:
    return hr;
}
Пример #14
0
HRESULT CTestClientLogic::GenerateBindingResponseMessage(const CSocketAddress& addrMapped, const StunTransactionId& transid, CRefCountedBuffer& spMsg)
{
    HRESULT hr = S_OK;

    CStunMessageBuilder builder;
    builder.GetStream().Attach(spMsg, true);

    ChkA(builder.AddBindingResponseHeader(true));
    ChkA(builder.AddTransactionId(transid));
    ChkA(builder.AddXorMappedAddress(addrMapped));
    ChkA(builder.FixLengthField());
Cleanup:
    return hr;
}
Пример #15
0
HRESULT CStunThreadMessageHandler::ProcessBindingRequest(CStunMessageReader& reader)
{

    HRESULT hrTmp;
    bool fRequestHasPaddingAttribute = false;
    SocketRole socketOutput = _message.localSocket;
    StunChangeRequestAttribute changerequest = {};
    bool fSendOtherAddress = false;
    bool fSendOriginAddress = false;
    SocketRole socketOther;
    CSocketAddress addrOrigin;
    CSocketAddress addrOther;
    CStunMessageBuilder builder;
    uint16_t paddingSize = 0;
    bool fLegacyFormat = false; // set to true if the client appears to be rfc3489 based instead of based on rfc 5789


    _spResponseBuffer->SetSize(0);
    builder.GetStream().Attach(_spResponseBuffer, true);
    
    fLegacyFormat = reader.IsMessageLegacyFormat();

    // check for an alternate response port
    // check for padding attribute (todo - figure out how to inject padding into the response)
    // check for a change request and validate we can do it.  If so, set _socketOutput.  If not, fill out _error and return.
    // determine if we have an "other" address to notify the caller about


    // did the request come with a padding request
    if (SUCCEEDED(reader.GetPaddingAttributeSize(&paddingSize)))
    {
        // todo - figure out how we're going to get the MTU size of the outgoing interface
        fRequestHasPaddingAttribute = true;
    }

    // as per 5780, section 6.1, If the Request contained a PADDING attribute...
    // "If the Request also contains the RESPONSE-PORT attribute the server MUST return an error response of type 400."
    if (_fRequestHasResponsePort && fRequestHasPaddingAttribute)
    {
        _error.errorcode = STUN_ERROR_BADREQUEST;
        return E_FAIL;
    }

    // handle change request logic and figure out what "other-address" attribute is going to be
    if (SUCCEEDED(reader.GetChangeRequest(&changerequest)))
    {
        if (changerequest.fChangeIP)
        {
            socketOutput = SocketRoleSwapIP(socketOutput);
        }
        if(changerequest.fChangePort)
        {
            socketOutput = SocketRoleSwapPort(socketOutput);
        }

        // IsValidSocketRole just validates the enum, not whether or not we can send on it
        ASSERT(IsValidSocketRole(socketOutput));

        // now, make sure we have the ability to send from another socket
        if (_spStunResponder->HasAddress(socketOutput) == false)
        {
            // send back an error.  We're being asked to respond using another address that we don't have a socket for
            _error.errorcode = STUN_ERROR_BADREQUEST;
            return E_FAIL;
        }
    }

    // If we're only working one socket, then that's ok, we just don't send back an "other address" unless we have all four sockets confgiured

    // now here's a problem.  If we binded to "INADDR_ANY", all of the sockets will have "0.0.0.0" for an address (same for IPV6)
    // So we effectively can't send back "other address" if don't really know our own IP address
    // Fortunately, recvfromex and the ioctls on the socket allow address discovery a bit better

    fSendOtherAddress = (_spStunResponder->HasAddress(RolePP) && _spStunResponder->HasAddress(RolePA) && _spStunResponder->HasAddress(RoleAP) && _spStunResponder->HasAddress(RoleAA));

    if (fSendOtherAddress)
    {
        socketOther = SocketRoleSwapIP(SocketRoleSwapPort(_message.localSocket));

        hrTmp = _spStunResponder->GetSocketAddressForRole(socketOther, &addrOther);
        ASSERT(SUCCEEDED(hrTmp));

        // so if our ip address is "0.0.0.0", disable this attribute
        fSendOtherAddress = (SUCCEEDED(hrTmp) && (addrOther.IsIPAddressZero()==false));
    }

    // What's our address origin?
    VERIFY(SUCCEEDED(_spStunResponder->GetSocketAddressForRole(socketOutput, &addrOrigin)));
    if (addrOrigin.IsIPAddressZero())
    {
        // Since we're sending back from the IP address we received on, we can just use the address the message came in on
        // Otherwise, we don't actually know it
        if (socketOutput == _message.localSocket)
        {
            addrOrigin = _message.localAddr;
        }
    }
    fSendOriginAddress = (false == addrOrigin.IsIPAddressZero());

    // Success - we're all clear to build the response

    _socketOutput = socketOutput;

    _spResponseBuffer->SetSize(0);
    builder.GetStream().Attach(_spResponseBuffer, true);

    builder.AddHeader(StunMsgTypeBinding, StunMsgClassSuccessResponse);
    builder.AddTransactionId(_transid);
    builder.AddMappedAddress(_message.remoteAddr);

    if (fLegacyFormat == false)
    {
        builder.AddXorMappedAddress(_message.remoteAddr);
    }

    if (fSendOriginAddress)
    {
        builder.AddResponseOriginAddress(addrOrigin);
    }

    if (fSendOtherAddress)
    {
        builder.AddOtherAddress(addrOther, fLegacyFormat); // pass true to send back CHANGED-ADDRESS, otherwise, pass false to send back OTHER-ADDRESS
    }
    
    // finally - if we're supposed to have a message integrity attribute as a result of authorization, add it at the very end
    if (_integrity.fSendWithIntegrity)
    {
        if (_integrity.fUseLongTerm == false)
        {
            builder.AddMessageIntegrityShortTerm(_integrity.szPassword);
        }
        else
        {
            builder.AddMessageIntegrityLongTerm(_integrity.szUser, _integrity.szRealm, _integrity.szPassword);
        }
    }

    builder.FixLengthField();

    return S_OK;
}
Пример #16
0
// 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;
}
Пример #17
0
// The goal of this test is to just validate that we can create a message from CStunMessageBuilder and have it's output parsed correctly by CStunMessageReader
// Also helps validate CSocketAddress
HRESULT CTestBuilder::Test1()
{
    HRESULT hr = S_OK;
    CStunMessageBuilder builder;
    CStunMessageReader reader;
    StunAttribute attrib;
    CRefCountedBuffer spBuffer;
    CRefCountedBuffer spBufferReader;
    CSocketAddress addrValidate(0,0);
    StunTransactionId transid = {};
    uint32_t ipvalidate = 0;


    CSocketAddress addr(0x7f000001, 9999);
    CSocketAddress addrOrigin(0xAABBCCDD, 8888);
    CSocketAddress addrOther(0x11223344, 7777);
    

    ChkA(builder.AddBindingRequestHeader());
    ChkA(builder.AddRandomTransactionId(&transid));
    ChkA(builder.AddStringAttribute(STUN_ATTRIBUTE_SOFTWARE, "FOOBAR"));
    ChkA(builder.AddMappedAddress(addr));
    ChkA(builder.AddXorMappedAddress(addr));
    ChkA(builder.AddOtherAddress(addrOther));
    ChkA(builder.AddResponseOriginAddress(addrOrigin));
    ChkA(builder.AddFingerprintAttribute());
    ChkA(builder.GetResult(&spBuffer));

    ChkIfA(CStunMessageReader::BodyValidated != reader.AddBytes(spBuffer->GetData(), spBuffer->GetSize()), E_FAIL);

    ChkIfA(reader.HasFingerprintAttribute() == false, E_FAIL);

    ChkIfA(reader.IsFingerprintAttributeValid() == false, E_FAIL);

    ChkIfA(reader.GetMessageClass() != StunMsgClassRequest, E_FAIL);

    ChkIfA(reader.GetMessageType() != StunMsgTypeBinding, E_FAIL);

    ChkA(reader.GetBuffer(&spBufferReader));

    ChkA(reader.GetAttributeByType(STUN_ATTRIBUTE_SOFTWARE, &attrib));

    ChkIfA(attrib.attributeType != STUN_ATTRIBUTE_SOFTWARE, E_FAIL);

    ChkIfA(0 != ::strncmp("FOOBAR", (const char*)(spBufferReader->GetData() + attrib.offset), attrib.size), E_FAIL);

    ChkA(reader.GetXorMappedAddress(&addrValidate));
    ChkIf(addrValidate.IsSameIP_and_Port(addr) == false, E_FAIL);
    ChkIfA(addrValidate.GetIPLength() != 4, E_FAIL);

    addrValidate = CSocketAddress(0,0);
    ChkA(reader.GetMappedAddress(&addrValidate));
    ChkIfA(addrValidate.GetPort() != 9999, E_FAIL);
    ChkIfA(addrValidate.GetIPLength() != 4, E_FAIL);
    ChkIfA(4 != addrValidate.GetIP(&ipvalidate, 4), E_FAIL);
    ChkIfA(ipvalidate != 0x7f000001, E_FAIL);

    addrValidate = CSocketAddress(0,0);
    ipvalidate = 0;
    reader.GetOtherAddress(&addrValidate);
    ChkIfA(addrValidate.GetPort() != 7777, E_FAIL);
    ChkIfA(addrValidate.GetIPLength() != 4, E_FAIL);
    ChkIfA(4 != addrValidate.GetIP(&ipvalidate, 4), E_FAIL);
    ChkIf(ipvalidate != 0x11223344, E_FAIL);


Cleanup:
   return hr;
}
// 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;
}