Line data    Source code

       1              : /*
       2              :  *
       3              :  *    Copyright (c) 2020-2021 Project CHIP Authors
       4              :  *
       5              :  *    Licensed under the Apache License, Version 2.0 (the "License");
       6              :  *    you may not use this file except in compliance with the License.
       7              :  *    You may obtain a copy of the License at
       8              :  *
       9              :  *        http://www.apache.org/licenses/LICENSE-2.0
      10              :  *
      11              :  *    Unless required by applicable law or agreed to in writing, software
      12              :  *    distributed under the License is distributed on an "AS IS" BASIS,
      13              :  *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
      14              :  *    See the License for the specific language governing permissions and
      15              :  */
      16              : 
      17              : #include <transport/TransportMgrBase.h>
      18              : 
      19              : #include <lib/support/CodeUtils.h>
      20              : #include <platform/LockTracker.h>
      21              : #include <transport/TransportMgr.h>
      22              : #include <transport/raw/Base.h>
      23              : 
      24              : namespace chip {
      25              : 
      26        15114 : CHIP_ERROR TransportMgrBase::SendMessage(const Transport::PeerAddress & address, System::PacketBufferHandle && msgBuf)
      27              : {
      28        15114 :     return mTransport->SendMessage(address, std::move(msgBuf));
      29              : }
      30              : 
      31              : #if INET_CONFIG_ENABLE_TCP_ENDPOINT
      32            0 : CHIP_ERROR TransportMgrBase::TCPConnect(const Transport::PeerAddress & address, Transport::AppTCPConnectionCallbackCtxt * appState,
      33              :                                         Transport::ActiveTCPConnectionHolder & peerConnState)
      34              : {
      35            0 :     return mTransport->TCPConnect(address, appState, peerConnState);
      36              : }
      37              : #endif // INET_CONFIG_ENABLE_TCP_ENDPOINT
      38              : 
      39           64 : CHIP_ERROR TransportMgrBase::Init(Transport::Base * transport)
      40              : {
      41           64 :     if (mTransport != nullptr)
      42              :     {
      43            0 :         return CHIP_ERROR_INCORRECT_STATE;
      44              :     }
      45           64 :     mTransport = transport;
      46           64 :     mTransport->SetDelegate(this);
      47              : 
      48           64 :     ChipLogDetail(Inet, "TransportMgr initialized");
      49           64 :     return CHIP_NO_ERROR;
      50              : }
      51              : 
      52           50 : void TransportMgrBase::Close()
      53              : {
      54           50 :     mSessionManager = nullptr;
      55           50 :     mTransport      = nullptr;
      56           50 : }
      57              : 
      58            0 : CHIP_ERROR TransportMgrBase::MulticastGroupJoinLeave(const Transport::PeerAddress & address, bool join)
      59              : {
      60            0 :     return mTransport->MulticastGroupJoinLeave(address, join);
      61              : }
      62              : 
      63        14992 : void TransportMgrBase::HandleMessageReceived(const Transport::PeerAddress & peerAddress, System::PacketBufferHandle && msg,
      64              :                                              Transport::MessageTransportContext * ctxt)
      65              : {
      66              :     // This is the first point all incoming messages funnel through.  Ensure
      67              :     // that our message receipts are all synchronized correctly.
      68        14992 :     assertChipStackLockedByCurrentThread();
      69              : 
      70        14992 :     if (msg->HasChainedBuffer())
      71              :     {
      72              :         // Something in the lower levels messed up.
      73              :         char addrBuffer[Transport::PeerAddress::kMaxToStringSize];
      74            0 :         peerAddress.ToString(addrBuffer);
      75            0 :         ChipLogError(Inet, "message from %s dropped due to lower layers not ensuring a single packet buffer.", addrBuffer);
      76            0 :         return;
      77              :     }
      78              : 
      79        14992 :     if (mSessionManager != nullptr)
      80              :     {
      81        14992 :         mSessionManager->OnMessageReceived(peerAddress, std::move(msg), ctxt);
      82              :     }
      83              :     else
      84              :     {
      85              :         char addrBuffer[Transport::PeerAddress::kMaxToStringSize];
      86            0 :         peerAddress.ToString(addrBuffer);
      87            0 :         ChipLogError(Inet, "message from %s is dropped since no corresponding handler is set in TransportMgr.", addrBuffer);
      88              :     }
      89              : }
      90              : 
      91              : #if INET_CONFIG_ENABLE_TCP_ENDPOINT
      92           12 : void TransportMgrBase::HandleConnectionReceived(Transport::ActiveTCPConnectionState & conn)
      93              : {
      94           12 :     if (mSessionManager != nullptr)
      95              :     {
      96           12 :         mSessionManager->HandleConnectionReceived(conn);
      97              :     }
      98              :     else
      99              :     {
     100              :         // Close connection here since no upper layer is interested in the connection.
     101            0 :         Transport::ActiveTCPConnectionHolder releaseConnection(&conn);
     102            0 :     }
     103           12 : }
     104              : 
     105           14 : void TransportMgrBase::HandleConnectionAttemptComplete(Transport::ActiveTCPConnectionHolder & conn, CHIP_ERROR conErr)
     106              : {
     107           14 :     if (mSessionManager != nullptr)
     108              :     {
     109           14 :         mSessionManager->HandleConnectionAttemptComplete(conn, conErr);
     110              :     }
     111           14 : }
     112              : 
     113            5 : void TransportMgrBase::HandleConnectionClosed(Transport::ActiveTCPConnectionState & conn, CHIP_ERROR conErr)
     114              : {
     115            5 :     if (mSessionManager != nullptr)
     116              :     {
     117            5 :         mSessionManager->HandleConnectionClosed(conn, conErr);
     118              :     }
     119            5 : }
     120              : #endif // INET_CONFIG_ENABLE_TCP_ENDPOINT
     121              : 
     122              : } // namespace chip