Line data    Source code

       1              : /*
       2              :  *
       3              :  *    Copyright (c) 2020-2021 Project CHIP Authors
       4              :  *    All rights reserved.
       5              :  *
       6              :  *    Licensed under the Apache License, Version 2.0 (the "License");
       7              :  *    you may not use this file except in compliance with the License.
       8              :  *    You may obtain a copy of the License at
       9              :  *
      10              :  *        http://www.apache.org/licenses/LICENSE-2.0
      11              :  *
      12              :  *    Unless required by applicable law or agreed to in writing, software
      13              :  *    distributed under the License is distributed on an "AS IS" BASIS,
      14              :  *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
      15              :  *    See the License for the specific language governing permissions and
      16              :  *    limitations under the License.
      17              :  */
      18              : 
      19              : /**
      20              :  *  @file
      21              :  *    This file contains implementation of Device class. The objects of this
      22              :  *    class will be used by Controller applications to interact with CHIP
      23              :  *    devices. The class provides mechanism to construct, send and receive
      24              :  *    messages to and from the corresponding CHIP devices.
      25              :  */
      26              : 
      27              : #include <controller/CommissioneeDeviceProxy.h>
      28              : 
      29              : #include <app/CommandSender.h>
      30              : #include <app/ReadPrepareParams.h>
      31              : #include <app/util/DataModelHandler.h>
      32              : #include <lib/core/CHIPCore.h>
      33              : #include <lib/core/CHIPEncoding.h>
      34              : #include <lib/core/CHIPSafeCasts.h>
      35              : #include <lib/core/ErrorStr.h>
      36              : #include <lib/support/CodeUtils.h>
      37              : #include <lib/support/SafeInt.h>
      38              : #include <lib/support/logging/CHIPLogging.h>
      39              : 
      40              : using namespace chip::Callback;
      41              : 
      42              : namespace chip {
      43              : 
      44            0 : CHIP_ERROR CommissioneeDeviceProxy::SendCommands(app::CommandSender * commandObj, Optional<System::Clock::Timeout> timeout)
      45              : {
      46            0 :     VerifyOrReturnError(mSecureSession, CHIP_ERROR_INCORRECT_STATE);
      47            0 :     VerifyOrReturnError(commandObj != nullptr, CHIP_ERROR_INVALID_ARGUMENT);
      48            0 :     VerifyOrReturnError(mSecureSession, CHIP_ERROR_MISSING_SECURE_SESSION);
      49            0 :     return commandObj->SendCommandRequest(mSecureSession.Get().Value(), timeout);
      50              : }
      51              : 
      52            0 : void CommissioneeDeviceProxy::OnSessionReleased()
      53              : {
      54            0 :     mState = ConnectionState::NotConnected;
      55            0 : }
      56              : 
      57            0 : void CommissioneeDeviceProxy::CloseSession()
      58              : {
      59            0 :     VerifyOrReturn(mState == ConnectionState::SecureConnected);
      60            0 :     if (mSecureSession)
      61              :     {
      62            0 :         mSecureSession->AsSecureSession()->MarkForEviction();
      63              :     }
      64              : 
      65            0 :     mState = ConnectionState::NotConnected;
      66            0 :     mPairing.Clear();
      67              : }
      68              : 
      69            0 : chip::Optional<SessionHandle> CommissioneeDeviceProxy::DetachSecureSession()
      70              : {
      71            0 :     auto session = mSecureSession.Get();
      72            0 :     mSecureSession.Release();
      73            0 :     mState = ConnectionState::NotConnected;
      74            0 :     mPairing.Clear();
      75            0 :     return session;
      76              : }
      77              : 
      78            0 : void CommissioneeDeviceProxy::UpdateDeviceData(const Transport::PeerAddress & addr, const ReliableMessageProtocolConfig & config)
      79              : {
      80            0 :     mDeviceAddress = addr;
      81              : 
      82              :     // Initialize PASE session state with any MRP parameters that DNS-SD has provided.
      83              :     // It can be overridden by PASE session protocol messages that include MRP parameters.
      84            0 :     mPairing.SetRemoteMRPConfig(config);
      85              : 
      86            0 :     if (!mSecureSession)
      87              :     {
      88              :         // Nothing needs to be done here.  It's not an error to not have a
      89              :         // secureSession.  For one thing, we could have gotten an different
      90              :         // UpdateAddress already and that caused connections to be torn down and
      91              :         // whatnot.
      92            0 :         return;
      93              :     }
      94              : 
      95            0 :     Transport::SecureSession * secureSession = mSecureSession.Get().Value()->AsSecureSession();
      96            0 :     secureSession->SetPeerAddress(addr);
      97              : }
      98              : 
      99            0 : CHIP_ERROR CommissioneeDeviceProxy::SetConnected(const SessionHandle & session)
     100              : {
     101            0 :     VerifyOrReturnError(mState == ConnectionState::Connecting, CHIP_ERROR_INCORRECT_STATE);
     102            0 :     VerifyOrReturnError(session->AsSecureSession()->IsPASESession(), CHIP_ERROR_INVALID_ARGUMENT);
     103              : 
     104            0 :     if (!mSecureSession.Grab(session))
     105              :     {
     106            0 :         mState = ConnectionState::NotConnected;
     107            0 :         return CHIP_ERROR_INTERNAL;
     108              :     }
     109              : 
     110            0 :     mState = ConnectionState::SecureConnected;
     111            0 :     return CHIP_NO_ERROR;
     112              : }
     113              : 
     114            0 : CommissioneeDeviceProxy::~CommissioneeDeviceProxy()
     115              : {
     116            0 :     auto session = GetSecureSession();
     117            0 :     if (session.HasValue())
     118              :     {
     119            0 :         session.Value()->AsSecureSession()->MarkForEviction();
     120              :     }
     121            0 : }
     122              : 
     123            0 : CHIP_ERROR CommissioneeDeviceProxy::SetPeerId(ByteSpan rcac, ByteSpan noc)
     124              : {
     125              :     CompressedFabricId compressedFabricId;
     126              :     NodeId nodeId;
     127            0 :     ReturnErrorOnFailure(Credentials::ExtractNodeIdCompressedFabricIdFromOpCerts(rcac, noc, compressedFabricId, nodeId));
     128            0 :     mPeerId = PeerId().SetCompressedFabricId(compressedFabricId).SetNodeId(nodeId);
     129            0 :     return CHIP_NO_ERROR;
     130              : }
     131              : 
     132              : } // namespace chip