Example #1
0
void Dtls::HandleUdpReceive(Message &aMessage, const Ip6::MessageInfo &aMessageInfo)
{
    switch (mState)
    {
    case MeshCoP::Dtls::kStateClosed:
        ExitNow();

    case MeshCoP::Dtls::kStateOpen:
    {
        Ip6::SockAddr sockAddr;

        sockAddr.mAddress = aMessageInfo.GetPeerAddr();
        sockAddr.mPort    = aMessageInfo.GetPeerPort();
        mSocket.Connect(sockAddr);

        mPeerAddress.SetPeerAddr(aMessageInfo.GetPeerAddr());
        mPeerAddress.SetPeerPort(aMessageInfo.GetPeerPort());
        mPeerAddress.SetInterfaceId(aMessageInfo.GetInterfaceId());

        if (Get<ThreadNetif>().IsUnicastAddress(aMessageInfo.GetSockAddr()))
        {
            mPeerAddress.SetSockAddr(aMessageInfo.GetSockAddr());
        }

        mPeerAddress.SetSockPort(aMessageInfo.GetSockPort());

        SuccessOrExit(Setup(false));
        break;
    }

    default:
        // Once DTLS session is started, communicate only with a peer.
        VerifyOrExit((mPeerAddress.GetPeerAddr() == aMessageInfo.GetPeerAddr()) &&
                     (mPeerAddress.GetPeerPort() == aMessageInfo.GetPeerPort()));
        break;
    }

#if OPENTHREAD_ENABLE_BORDER_AGENT || OPENTHREAD_ENABLE_COMMISSIONER
    if (mState == MeshCoP::Dtls::kStateConnecting)
    {
        SetClientId(mPeerAddress.GetPeerAddr().mFields.m8, sizeof(mPeerAddress.GetPeerAddr().mFields));
    }
#endif

    Receive(aMessage, aMessage.GetOffset(), aMessage.GetLength() - aMessage.GetOffset());

exit:
    return;
}
void AnnounceBeginServer::HandleRequest(Coap::Header &aHeader, Message &aMessage, const Ip6::MessageInfo &aMessageInfo)
{
    MeshCoP::ChannelMask0Tlv channelMask;
    MeshCoP::CountTlv count;
    MeshCoP::PeriodTlv period;
    Ip6::MessageInfo responseInfo(aMessageInfo);

    VerifyOrExit(aHeader.GetCode() == OT_COAP_CODE_POST);

    SuccessOrExit(MeshCoP::Tlv::GetTlv(aMessage, MeshCoP::Tlv::kChannelMask, sizeof(channelMask), channelMask));
    VerifyOrExit(channelMask.IsValid());

    SuccessOrExit(MeshCoP::Tlv::GetTlv(aMessage, MeshCoP::Tlv::kCount, sizeof(count), count));
    VerifyOrExit(count.IsValid());

    SuccessOrExit(MeshCoP::Tlv::GetTlv(aMessage, MeshCoP::Tlv::kPeriod, sizeof(period), period));
    VerifyOrExit(period.IsValid());

    SendAnnounce(channelMask.GetMask(), count.GetCount(), period.GetPeriod());

    if (aHeader.IsConfirmable() && !aMessageInfo.GetSockAddr().IsMulticast())
    {
        SuccessOrExit(GetNetif().GetCoap().SendEmptyAck(aHeader, responseInfo));
        otLogInfoMeshCoP(GetInstance(), "sent announce begin response");
    }

exit:
    return;
}
Example #3
0
RequestMetadata::RequestMetadata(bool aConfirmable, const Ip6::MessageInfo &aMessageInfo,
                                 otCoapResponseHandler aHandler, void *aContext)
{
    mSourceAddress = aMessageInfo.GetSockAddr();
    mDestinationPort = aMessageInfo.GetPeerPort();
    mDestinationAddress = aMessageInfo.GetPeerAddr();
    mResponseHandler = aHandler;
    mResponseContext = aContext;
    mRetransmissionCount = 0;
    mRetransmissionTimeout = Timer::SecToMsec(kAckTimeout);
    mRetransmissionTimeout += otPlatRandomGet() %
                              (Timer::SecToMsec(kAckTimeout) * kAckRandomFactorNumerator / kAckRandomFactorDenominator -
                               Timer::SecToMsec(kAckTimeout) + 1);

    if (aConfirmable)
    {
        // Set next retransmission timeout.
        mNextTimerShot = Timer::GetNow() + mRetransmissionTimeout;
    }
    else
    {
        // Set overall response timeout.
        mNextTimerShot = Timer::GetNow() + kMaxTransmitWait;
    }

    mAcknowledged = false;
    mConfirmable = aConfirmable;
}
Example #4
0
bool ThreadNetif::IsTmfMessage(const Ip6::MessageInfo &aMessageInfo)
{
    bool rval = true;

    // A TMF message must comply with following rules:
    // 1. The destination is a Mesh Local Address or a Link-Local Multicast Address or a Realm-Local Multicast Address,
    //    and the source is a Mesh Local Address. Or
    // 2. Both the destination and the source are Link-Local Addresses.
    VerifyOrExit(
        ((mMleRouter.IsMeshLocalAddress(aMessageInfo.GetSockAddr()) ||
          aMessageInfo.GetSockAddr().IsLinkLocalMulticast() || aMessageInfo.GetSockAddr().IsRealmLocalMulticast()) &&
         mMleRouter.IsMeshLocalAddress(aMessageInfo.GetPeerAddr())) ||
            ((aMessageInfo.GetSockAddr().IsLinkLocal() || aMessageInfo.GetSockAddr().IsLinkLocalMulticast()) &&
             aMessageInfo.GetPeerAddr().IsLinkLocal()),
        rval = false);
exit:
    return rval;
}
Example #5
0
void CoapSecure::Receive(Message &aMessage, const Ip6::MessageInfo &aMessageInfo)
{
    ThreadNetif &netif = GetNetif();

    if (!netif.GetDtls().IsStarted())
    {
        Ip6::SockAddr sockAddr;
        sockAddr.mAddress = aMessageInfo.GetPeerAddr();
        sockAddr.mPort    = aMessageInfo.GetPeerPort();
        mSocket.Connect(sockAddr);

        mPeerAddress.SetPeerAddr(aMessageInfo.GetPeerAddr());
        mPeerAddress.SetPeerPort(aMessageInfo.GetPeerPort());
        mPeerAddress.SetInterfaceId(aMessageInfo.GetInterfaceId());

        if (netif.IsUnicastAddress(aMessageInfo.GetSockAddr()))
        {
            mPeerAddress.SetSockAddr(aMessageInfo.GetSockAddr());
        }

        mPeerAddress.SetSockPort(aMessageInfo.GetSockPort());

        netif.GetDtls().Start(false, &CoapSecure::HandleDtlsConnected, &CoapSecure::HandleDtlsReceive,
                              CoapSecure::HandleDtlsSend, this);
    }
    else
    {
        // Once DTLS session is started, communicate only with a peer.
        VerifyOrExit((mPeerAddress.GetPeerAddr() == aMessageInfo.GetPeerAddr()) &&
                     (mPeerAddress.GetPeerPort() == aMessageInfo.GetPeerPort()));
    }

    netif.GetDtls().SetClientId(mPeerAddress.GetPeerAddr().mFields.m8, sizeof(mPeerAddress.GetPeerAddr().mFields));
    netif.GetDtls().Receive(aMessage, aMessage.GetOffset(), aMessage.GetLength() - aMessage.GetOffset());

exit:
    return;
}
Example #6
0
void EnergyScanServer::HandleRequest(Coap::Header &aHeader, Message &aMessage, const Ip6::MessageInfo &aMessageInfo)
{
    MeshCoP::CountTlv        count;
    MeshCoP::PeriodTlv       period;
    MeshCoP::ScanDurationTlv scanDuration;
    MeshCoP::ChannelMask0Tlv channelMask;
    Ip6::MessageInfo         responseInfo(aMessageInfo);

    VerifyOrExit(aHeader.GetCode() == OT_COAP_CODE_POST);

    SuccessOrExit(MeshCoP::Tlv::GetTlv(aMessage, MeshCoP::Tlv::kCount, sizeof(count), count));
    VerifyOrExit(count.IsValid());

    SuccessOrExit(MeshCoP::Tlv::GetTlv(aMessage, MeshCoP::Tlv::kPeriod, sizeof(period), period));
    VerifyOrExit(period.IsValid());

    SuccessOrExit(MeshCoP::Tlv::GetTlv(aMessage, MeshCoP::Tlv::kScanDuration, sizeof(scanDuration), scanDuration));
    VerifyOrExit(scanDuration.IsValid());

    SuccessOrExit(MeshCoP::Tlv::GetTlv(aMessage, MeshCoP::Tlv::kChannelMask, sizeof(channelMask), channelMask));
    VerifyOrExit(channelMask.IsValid());

    mChannelMask        = channelMask.GetMask();
    mChannelMaskCurrent = mChannelMask;
    mCount              = count.GetCount();
    mPeriod             = period.GetPeriod();
    mScanDuration       = scanDuration.GetScanDuration();
    mScanResultsLength  = 0;
    mActive             = true;
    mTimer.Start(kScanDelay);

    mCommissioner = aMessageInfo.GetPeerAddr();

    if (aHeader.IsConfirmable() && !aMessageInfo.GetSockAddr().IsMulticast())
    {
        SuccessOrExit(GetNetif().GetCoap().SendEmptyAck(aHeader, responseInfo));
        otLogInfoMeshCoP(GetInstance(), "sent energy scan query response");
    }

exit:
    return;
}