Line data    Source code

       1              : /*
       2              :  *    Copyright (c) 2022 Project CHIP Authors
       3              :  *
       4              :  *    Licensed under the Apache License, Version 2.0 (the "License");
       5              :  *    you may not use this file except in compliance with the License.
       6              :  *    You may obtain a copy of the License at
       7              :  *
       8              :  *        http://www.apache.org/licenses/LICENSE-2.0
       9              :  *
      10              :  *    Unless required by applicable law or agreed to in writing, software
      11              :  *    distributed under the License is distributed on an "AS IS" BASIS,
      12              :  *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
      13              :  *    See the License for the specific language governing permissions and
      14              :  *    limitations under the License.
      15              :  */
      16              : 
      17              : #pragma once
      18              : 
      19              : #include <messaging/ExchangeMessageDispatch.h>
      20              : #include <protocols/secure_channel/Constants.h>
      21              : 
      22              : namespace chip {
      23              : namespace Messaging {
      24              : 
      25              : class EphemeralExchangeDispatch : public ExchangeMessageDispatch
      26              : {
      27              : public:
      28           14 :     static ExchangeMessageDispatch & Instance()
      29              :     {
      30           14 :         static EphemeralExchangeDispatch instance;
      31           14 :         return instance;
      32              :     }
      33              : 
      34            7 :     EphemeralExchangeDispatch() {}
      35            7 :     ~EphemeralExchangeDispatch() override {}
      36              : 
      37              : protected:
      38           14 :     bool MessagePermitted(Protocols::Id protocol, uint8_t type) override
      39              :     {
      40              :         // Only permit StandaloneAck
      41           28 :         return (protocol == Protocols::SecureChannel::Id &&
      42           28 :                 type == to_underlying(Protocols::SecureChannel::MsgType::StandaloneAck));
      43              :     }
      44              : 
      45            0 :     bool IsEncryptionRequired() const override
      46              :     {
      47              :         // This function should not be called at all
      48            0 :         VerifyOrDie(false);
      49              :         return false;
      50              :     }
      51              : };
      52              : 
      53              : } // namespace Messaging
      54              : } // namespace chip