RpcServer.cpp

/*
 *
 *    Copyright (c) 2024 Project CHIP Authors
 *    All rights reserved.
 *
 *    Licensed under the Apache License, Version 2.0 (the "License");
 *    you may not use this file except in compliance with the License.
 *    You may obtain a copy of the License at
 *
 *        http://www.apache.org/licenses/LICENSE-2.0
 *
 *    Unless required by applicable law or agreed to in writing, software
 *    distributed under the License is distributed on an "AS IS" BASIS,
 *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *    See the License for the specific language governing permissions and
 *    limitations under the License.
 */

#include "pw_rpc/server.h"
#include "pw_rpc_system_server/rpc_server.h"
#include "pw_rpc_system_server/socket.h"

#include <commands/fabric-sync/FabricSyncCommand.h>
#include <commands/interactive/InteractiveCommands.h>
#include <system/SystemClock.h>
#include <thread>

#if defined(PW_RPC_FABRIC_ADMIN_SERVICE) && PW_RPC_FABRIC_ADMIN_SERVICE
#include "pigweed/rpc_services/FabricAdmin.h"
#endif

using namespace ::chip;

namespace {

#if defined(PW_RPC_FABRIC_ADMIN_SERVICE) && PW_RPC_FABRIC_ADMIN_SERVICE
class FabricAdmin final : public rpc::FabricAdmin
{
public:
    pw::Status OpenCommissioningWindow(const chip_rpc_DeviceCommissioningWindowInfo & request,
                                       chip_rpc_OperationStatus & response) override
    {
        NodeId nodeId                 = request.node_id;
        uint32_t commissioningTimeout = request.commissioning_timeout;
        uint32_t iterations           = request.iterations;
        uint32_t discriminator        = request.discriminator;

        char saltHex[Crypto::kSpake2p_Max_PBKDF_Salt_Length * 2 + 1];
        Encoding::BytesToHex(request.salt.bytes, request.salt.size, saltHex, sizeof(saltHex), Encoding::HexFlags::kNullTerminate);

        char verifierHex[Crypto::kSpake2p_VerifierSerialized_Length * 2 + 1];
        Encoding::BytesToHex(request.verifier.bytes, request.verifier.size, verifierHex, sizeof(verifierHex),
                             Encoding::HexFlags::kNullTerminate);

        ChipLogProgress(NotSpecified, "Received OpenCommissioningWindow request: 0x%lx", nodeId);

        char command[512];
        snprintf(command, sizeof(command), "pairing open-commissioning-window %ld %d %d %d %d %d --salt hex:%s --verifier hex:%s",
                 nodeId, kRootEndpointId, kEnhancedCommissioningMethod, commissioningTimeout, iterations, discriminator, saltHex,
                 verifierHex);

        PushCommand(command);

        response.success = true;

        return pw::OkStatus();
    }
};

FabricAdmin fabric_admin_service;
#endif // defined(PW_RPC_FABRIC_ADMIN_SERVICE) && PW_RPC_FABRIC_ADMIN_SERVICE

void RegisterServices(pw::rpc::Server & server)
{
#if defined(PW_RPC_FABRIC_ADMIN_SERVICE) && PW_RPC_FABRIC_ADMIN_SERVICE
    server.RegisterService(fabric_admin_service);
#endif
}

} // namespace

void RunRpcService()
{
    pw::rpc::system_server::Init();
    RegisterServices(pw::rpc::system_server::Server());
    pw::rpc::system_server::Start();
}

void InitRpcServer(uint16_t rpcServerPort)
{
    pw::rpc::system_server::set_socket_port(rpcServerPort);
    std::thread rpc_service(RunRpcService);
    rpc_service.detach();
}