diff --git a/services/sink/transport/BUILD.gn b/services/sink/transport/BUILD.gn
new file mode 100644
index 0000000..c3f2cf0
--- /dev/null
+++ b/services/sink/transport/BUILD.gn
@@ -0,0 +1,64 @@
+# Copyright (c) 2021 Huawei Device Co., Ltd.
+# 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.
+
+import("//build/ohos.gni")
+import("//foundation/distributedhardware/distributedinput/distributedinput.gni")
+
+ohos_shared_library("libdinput_sink_trans") {
+  include_dirs = [
+    "include",
+    "${common_path}/include",
+    "//utils/native/base/include",
+    "//utils/system/safwk/native/include",
+    "${fwk_common_path}/log/include",
+    "${fwk_common_path}/utils/include",
+    "${fwk_utils_path}/include/log",
+    "${fwk_utils_path}/include",
+    "//third_party/json/include",
+    "//foundation/communication/dsoftbus/interfaces/kits/transport",
+    "${service_common}/include",
+  ]
+
+  sources = [
+    "src/distributed_input_sink_transport.cpp",
+    "src/distributed_input_sink_switch.cpp"
+  ]
+
+  defines = [
+    "HI_LOG_ENABLE",
+    "DH_LOG_TAG=\"distributedinputsinktransport\"",
+    "LOG_DOMAIN=0xD004100",
+  ]
+
+  deps = [
+    "//foundation/appexecfwk/standard/interfaces/innerkits/libeventhandler:libeventhandler",
+    "//foundation/distributedschedule/samgr/interfaces/innerkits/samgr_proxy:samgr_proxy",
+    "//utils/native/base:utils",
+    "${fwk_utils_path}:distributedhardwareutils",
+    "//foundation/communication/dsoftbus/sdk:softbus_client",
+  ]
+
+  external_deps = [
+    "ipc:ipc_core",
+    "safwk:system_ability_fwk",
+    "hiviewdfx_hilog_native:libhilog",
+    "samgr_standard:samgr_proxy",
+  ]
+
+  cflags_cc = [ "-DHILOG_ENABLE" ]
+
+  subsystem_name = "distributedhardware"
+
+  part_name = "distributed_input"
+
+}
diff --git a/services/sink/transport/include/distributed_input_sink_switch.h b/services/sink/transport/include/distributed_input_sink_switch.h
new file mode 100644
index 0000000..509d4df
--- /dev/null
+++ b/services/sink/transport/include/distributed_input_sink_switch.h
@@ -0,0 +1,52 @@
+/*
+ * Copyright (c) 2022 Huawei Device Co., Ltd.
+ * 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.
+ */
+
+#ifndef DISTRIBUTED_INPUT_SINK_SWITCH_H
+#define DISTRIBUTED_INPUT_SINK_SWITCH_H
+
+#include <string>
+#include <set>
+#include <vector>
+#include <mutex>
+#include "dinput_softbus_define.h"
+
+namespace OHOS {
+namespace DistributedHardware {
+namespace DistributedInput {
+class DistributedInputSinkSwitch {
+public:
+    static DistributedInputSinkSwitch &GetInstance();
+    DistributedInputSinkSwitch();
+    ~DistributedInputSinkSwitch();
+    void InitSwitch();
+
+    int32_t StartSwitch(int32_t sessionId);
+    void StopSwitch(int32_t sessionId);
+    void AddSession(int32_t sessionId);
+    void RemoveSession(int32_t sessionId);
+    void StopAllSwitch();
+    std::vector<int32_t> GetAllSessionId();
+    int32_t GetSwitchOpenedSession();
+
+private:
+
+    std::mutex operationMutex_;
+    std::vector<SwitchStateData> switchVector_;
+};
+}  // namespace DistributedInput
+}  // namespace DistributedHardware
+}  // namespace OHOS
+
+#endif  // DISTRIBUTED_INPUT_SINK_SWITCH_H
diff --git a/services/sink/transport/include/distributed_input_sink_transport.h b/services/sink/transport/include/distributed_input_sink_transport.h
new file mode 100644
index 0000000..fead35b
--- /dev/null
+++ b/services/sink/transport/include/distributed_input_sink_transport.h
@@ -0,0 +1,84 @@
+/*
+ * Copyright (c) 2021 Huawei Device Co., Ltd.
+ * 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.
+ */
+
+#ifndef DISTRIBUTED_INPUT_SINK_TRANSPORT_H
+#define DISTRIBUTED_INPUT_SINK_TRANSPORT_H
+
+#include <string>
+#include <mutex>
+#include <set>
+#include <vector>
+
+#include "nlohmann/json.hpp"
+#include "constants.h"
+#include "event_handler.h"
+#include "dinput_sink_trans_callback.h"
+#include "dinput_softbus_define.h"
+#include "distributed_input_sink_switch.h"
+
+namespace OHOS {
+namespace DistributedHardware {
+namespace DistributedInput {
+class DistributedInputSinkTransport {
+public:
+    static DistributedInputSinkTransport &GetInstance();
+    DistributedInputSinkTransport();
+    ~DistributedInputSinkTransport();
+
+    int32_t Init();
+
+    void RegistSinkRespCallback(std::shared_ptr<DInputSinkTransCallback> callback);
+    int32_t RespPrepareRemoteInput(const int32_t sessionId, std::string &smsg);
+    int32_t RespUnprepareRemoteInput(const int32_t sessionId, std::string &smsg);
+    int32_t RespStartRemoteInput(const int32_t sessionId, std::string &smsg);
+    int32_t RespStopRemoteInput(const int32_t sessionId, std::string &smsg);
+
+    int32_t OnSessionOpened(int32_t sessionId, int32_t result);
+    void OnSessionClosed(int32_t sessionId);
+    void OnBytesReceived(int32_t sessionId, const void *data, uint32_t dataLen);
+
+    class DInputSinkEventHandler : public AppExecFwk::EventHandler {
+    public:
+        DInputSinkEventHandler(const std::shared_ptr<AppExecFwk::EventRunner> &runner);
+        ~DInputSinkEventHandler() {}
+
+        void ProcessEvent(const AppExecFwk::InnerEvent::Pointer &event) override;
+    };
+
+    std::shared_ptr<DistributedInputSinkTransport::DInputSinkEventHandler> GetEventHandler();
+    void CloseAllSession();
+
+private:
+    int32_t SendMessage(int32_t sessionId, std::string &message);
+    void HandleSessionData(int32_t sessionId, const std::string& messageData);
+    void NotifyPrepareRemoteInput(int32_t sessionId, const nlohmann::json &recMsg);
+    void NotifyUnprepareRemoteInput(int32_t sessionId, const nlohmann::json &recMsg);
+    void NotifyStartRemoteInput(int32_t sessionId, const nlohmann::json &recMsg);
+    void NotifyStopRemoteInput(int32_t sessionId, const nlohmann::json &recMsg);
+
+private:
+    std::string deviceId_;
+    std::set<int32_t> sessionIdSet_;
+    std::map<std::string, int32_t> sessionDevMap_;
+    std::string mySessionName_;
+
+    std::shared_ptr<DistributedInputSinkTransport::DInputSinkEventHandler> eventHandler_;
+    std::shared_ptr<DInputSinkTransCallback> callback_;
+};
+}  // namespace DistributedInput
+}  // namespace DistributedHardware
+}  // namespace OHOS
+
+#endif  // DISTRIBUTED_INPUT_SINK_TRANSPORT_H
diff --git a/services/sink/transport/src/distributed_input_sink_switch.cpp b/services/sink/transport/src/distributed_input_sink_switch.cpp
new file mode 100644
index 0000000..c55fd6a
--- /dev/null
+++ b/services/sink/transport/src/distributed_input_sink_switch.cpp
@@ -0,0 +1,190 @@
+/*
+ * Copyright (c) 2022 Huawei Device Co., Ltd.
+ * 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 "distributed_input_sink_switch.h"
+
+#include "constants_dinput.h"
+#include "distributed_hardware_log.h"
+
+namespace OHOS {
+namespace DistributedHardware {
+namespace DistributedInput {
+DistributedInputSinkSwitch &DistributedInputSinkSwitch::GetInstance()
+{
+    static DistributedInputSinkSwitch instance;
+    return instance;
+}
+
+DistributedInputSinkSwitch::DistributedInputSinkSwitch()
+{
+    InitSwitch();
+}
+
+DistributedInputSinkSwitch::~DistributedInputSinkSwitch()
+{
+    DHLOGI("~DistributedInputSinkSwitch()");
+    InitSwitch();
+}
+
+void DistributedInputSinkSwitch::InitSwitch()
+{
+    DHLOGI("InitSwitch.");
+    std::unique_lock<std::mutex> switchLock(operationMutex_);
+    switchVector_.clear();
+}
+
+int32_t DistributedInputSinkSwitch::StartSwitch(int32_t sessionId)
+{
+    std::unique_lock<std::mutex> switchLock(operationMutex_);
+    if (switchVector_.empty()) {
+        DHLOGE("StartSwitch sessionId:%d fail,switchVector_ is null.", sessionId);
+        return FAILURE;
+    } else {
+        bool findOld = false;
+        for (std::vector<SwitchStateData>::iterator it = switchVector_.begin(); it < switchVector_.end(); it++) {
+            if ((*it).sessionId == sessionId) {
+                (*it).switchState = true;
+                findOld = true;
+            } else {
+                (*it).switchState = false;
+            }
+        }
+
+        if (findOld) {
+            DHLOGI("StartSwitch sessionId:%d is find.", sessionId);
+            return SUCCESS;
+        } else {
+            DHLOGE("StartSwitch sessionId:%d fail, not found.", sessionId);
+            return FAILURE;
+        }
+    }
+}
+
+void DistributedInputSinkSwitch::StopSwitch(int32_t sessionId)
+{
+    std::unique_lock<std::mutex> switchLock(operationMutex_);
+    if (switchVector_.empty()) {
+        DHLOGE("StopSwitch sessionId:%d fail,switchVector_ is null.", sessionId);
+    } else {
+        bool findOld = false;
+        for (std::vector<SwitchStateData>::iterator it = switchVector_.begin(); it < switchVector_.end(); it++) {
+            if ((*it).sessionId == sessionId) {
+                (*it).switchState = false;
+                findOld = true;
+                break;
+            }
+        }
+
+        if (findOld) {
+            DHLOGI("StopSwitch sessionId:%d is success.", sessionId);
+        } else {
+            DHLOGE("StopSwitch sessionId:%d fail,not find it.", sessionId);
+        }
+    }
+}
+
+void DistributedInputSinkSwitch::StopAllSwitch()
+{
+    std::unique_lock<std::mutex> switchLock(operationMutex_);
+    if (switchVector_.empty()) {
+        DHLOGW("StopAllSwitch switchVector_ is null.");
+    } else {
+        for (std::vector<SwitchStateData>::iterator it = switchVector_.begin(); it < switchVector_.end(); it++) {
+            (*it).switchState = false;
+        }
+        DHLOGI("StopAllSwitch success.");
+    }
+}
+
+void DistributedInputSinkSwitch::AddSession(int32_t sessionId)
+{
+    std::unique_lock<std::mutex> switchLock(operationMutex_);
+    if (switchVector_.empty()) {
+        SwitchStateData tmp(sessionId, false);
+        switchVector_.push_back(tmp);
+        DHLOGI("AddSession sessionId:%d add first.", sessionId);
+    } else {
+        bool findOld = false;
+        for (std::vector<SwitchStateData>::iterator it = switchVector_.begin(); it < switchVector_.end(); it++) {
+            if ((*it).sessionId == sessionId) {
+                (*it).switchState = false;
+                findOld = true;
+                break;
+            }
+        }
+
+        if (findOld) {
+            DHLOGI("AddSession sessionId:%d is find.", sessionId);
+        } else {
+            SwitchStateData tmp(sessionId, false);
+            switchVector_.push_back(tmp);
+            DHLOGI("AddSession sessionId:%d add new.", sessionId);
+        }
+    }
+}
+
+void DistributedInputSinkSwitch::RemoveSession(int32_t sessionId)
+{
+    std::unique_lock<std::mutex> switchLock(operationMutex_);
+    if (switchVector_.empty()) {
+        DHLOGE("RemoveSession sessionId:%d fail,switch_vector is null.", sessionId);
+    } else {
+        bool findOld = false;
+        for (std::vector<SwitchStateData>::iterator it = switchVector_.begin(); it < switchVector_.end();) {
+            if ((*it).sessionId == sessionId) {
+                it = switchVector_.erase(it);
+                findOld = true;
+                break;
+            } else {
+                it++;
+            }
+        }
+        if (findOld) {
+            DHLOGI("RemoveSession sessionId:%d is success.", sessionId);
+        } else {
+            DHLOGE("RemoveSession sessionId:%d fail,not find it.", sessionId);
+        }
+    }
+}
+
+std::vector<int32_t> DistributedInputSinkSwitch::GetAllSessionId()
+{
+    std::unique_lock<std::mutex> switchLock(operationMutex_);
+    std::vector<int32_t> tmpVecSession;
+    for (std::vector<SwitchStateData>::iterator it = switchVector_.begin(); it < switchVector_.end(); it++) {
+        tmpVecSession.push_back((*it).sessionId);
+    }
+    return tmpVecSession;
+}
+
+// get current session which state is on, if error return -1.
+int32_t DistributedInputSinkSwitch::GetSwitchOpenedSession()
+{
+    std::unique_lock<std::mutex> switchLock(operationMutex_);
+    if (switchVector_.empty()) {
+        DHLOGE("GetSwitchOpenedSession error, no data.");
+        return FAILURE;
+    }
+    for (std::vector<SwitchStateData>::iterator it = switchVector_.begin(); it < switchVector_.end(); it++) {
+        if ((*it).switchState == true) {
+            return (*it).sessionId;
+        }
+    }
+    DHLOGE("GetSwitchOpenedSession no session is open.");
+    return FAILURE;
+}
+} // namespace DistributedInput
+} // namespace DistributedHardware
+} // namespace OHOS
diff --git a/services/sink/transport/src/distributed_input_sink_transport.cpp b/services/sink/transport/src/distributed_input_sink_transport.cpp
new file mode 100644
index 0000000..c51c599
--- /dev/null
+++ b/services/sink/transport/src/distributed_input_sink_transport.cpp
@@ -0,0 +1,434 @@
+/*
+ * Copyright (c) 2021 Huawei Device Co., Ltd.
+ * 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 "distributed_input_sink_transport.h"
+#include "session.h"
+#include "constants_dinput.h"
+#include "securec.h"
+#include "softbus_bus_center.h"
+#include "distributed_hardware_log.h"
+
+namespace OHOS {
+namespace DistributedHardware {
+namespace DistributedInput {
+static int32_t SessionOpened(int32_t sessionId, int32_t result)
+{
+    return DistributedInput::DistributedInputSinkTransport::GetInstance().OnSessionOpened(sessionId, result);
+}
+
+static void SessionClosed(int32_t sessionId)
+{
+    DistributedInput::DistributedInputSinkTransport::GetInstance().OnSessionClosed(sessionId);
+}
+
+static void BytesReceived(int32_t sessionId, const void *data, uint32_t dataLen)
+{
+    DistributedInput::DistributedInputSinkTransport::GetInstance().OnBytesReceived(sessionId, data, dataLen);
+}
+
+static void MessageReceived(int32_t sessionId, const void *data, uint32_t dataLen)
+{
+    (void)sessionId;
+    (void)data;
+    (void)dataLen;
+    DHLOGI("sessionId:%d, dataLen:%d", sessionId, dataLen);
+}
+
+static void StreamReceived(int32_t sessionId, const StreamData *data, const StreamData *ext,
+    const StreamFrameInfo *param)
+{
+    (void)sessionId;
+    (void)data;
+    (void)ext;
+    (void)param;
+    DHLOGI("sessionId:%d", sessionId);
+}
+DistributedInputSinkTransport &DistributedInputSinkTransport::GetInstance()
+{
+    static DistributedInputSinkTransport instance;
+    return instance;
+}
+
+DistributedInputSinkTransport::DistributedInputSinkTransport()
+{
+    std::shared_ptr<AppExecFwk::EventRunner> runner = AppExecFwk::EventRunner::Create(true);
+    eventHandler_ = std::make_shared<DistributedInputSinkTransport::DInputSinkEventHandler>(runner);
+    mySessionName_ = "";
+    DHLOGI("DistributedInputSinkTransport eventHandler_");
+}
+
+DistributedInputSinkTransport::~DistributedInputSinkTransport()
+{
+    DHLOGI("~DistributedInputSinkTransport");
+    sessionDevMap_.clear();
+    (void)RemoveSessionServer(DH_FWK_PKG_NAME.c_str(), mySessionName_.c_str());
+}
+
+DistributedInputSinkTransport::DInputSinkEventHandler::DInputSinkEventHandler(
+    const std::shared_ptr<AppExecFwk::EventRunner> &runner) : AppExecFwk::EventHandler(runner)
+{
+}
+
+void DistributedInputSinkTransport::DInputSinkEventHandler::ProcessEvent(const AppExecFwk::InnerEvent::Pointer &event)
+{
+    DHLOGI("ProcessEvent");
+    EHandlerMsgType eventId = static_cast<EHandlerMsgType>(event->GetInnerEventId());
+    switch (eventId) {
+        case EHandlerMsgType::DINPUT_SINK_EVENT_HANDLER_MSG: {
+            std::shared_ptr<nlohmann::json> innerMsg = event->GetSharedObject<nlohmann::json>();
+            nlohmann::json sendMsg;
+            sendMsg[DINPUT_SOFTBUS_KEY_CMD_TYPE] = TRANS_SINK_MSG_BODY_DATA;
+            sendMsg[DINPUT_SOFTBUS_KEY_INPUT_DATA] = innerMsg->dump();
+            std::string smsg = sendMsg.dump();
+
+            int32_t sessionId = DistributedInputSinkSwitch::GetInstance().GetSwitchOpenedSession();
+            if (sessionId > 0) {
+                DistributedInputSinkTransport::GetInstance().SendMessage(sessionId, smsg);
+            } else {
+                DHLOGE("ProcessEvent can't send input data, because no session switch on.");
+            }
+            break;
+        }
+        default:
+            DHLOGE("ProcessEvent error, because eventId is unkonwn.");
+            break;
+    }
+}
+
+int32_t DistributedInputSinkTransport::Init()
+{
+    // 1.create session
+    DHLOGI("Init");
+    ISessionListener iSessionListener = {
+        .OnSessionOpened = SessionOpened,
+        .OnSessionClosed = SessionClosed,
+        .OnBytesReceived = BytesReceived,
+        .OnMessageReceived = MessageReceived,
+        .OnStreamReceived = StreamReceived
+    };
+    auto localNode = std::make_unique<NodeBasicInfo>();
+    if (localNode == nullptr) {
+        DHLOGE("Init unique_ptr localNode nullptr.");
+        return FAILURE;
+    }
+    int32_t retCode = GetLocalNodeDeviceInfo(DH_FWK_PKG_NAME.c_str(), localNode.get());
+    if (retCode != SUCCESS) {
+        DHLOGE("Init could not get local device id.");
+        return FAILURE;
+    }
+    std::string networkId = localNode->networkId;
+    DHLOGI("Init device networkId is %s", networkId.c_str());
+    mySessionName_ = SESSION_NAME_SINK + networkId.substr(0, INTERCEPT_STRING_LENGTH);
+
+    int32_t ret = CreateSessionServer(DH_FWK_PKG_NAME.c_str(), mySessionName_.c_str(), &iSessionListener);
+    if (ret != SUCCESS) {
+        DHLOGE("Init CreateSessionServer failed, error code %d.", ret);
+        return FAILURE;
+    }
+    return SUCCESS;
+}
+
+std::shared_ptr<DistributedInputSinkTransport::DInputSinkEventHandler> DistributedInputSinkTransport::GetEventHandler()
+{
+    DHLOGI("GetEventHandler");
+    return eventHandler_;
+}
+
+void DistributedInputSinkTransport::RegistSinkRespCallback(std::shared_ptr<DInputSinkTransCallback> callback)
+{
+    DHLOGI("RegistSinkRespCallback");
+    callback_ = callback;
+}
+
+int32_t DistributedInputSinkTransport::RespPrepareRemoteInput(
+    const int32_t sessionId, std::string &smsg)
+{
+    if (sessionId > 0) {
+        DHLOGI("RespPrepareRemoteInput session:%d, smsg:%s.", sessionId, smsg.c_str());
+        int32_t ret = SendMessage(sessionId, smsg);
+        if (ret != SUCCESS) {
+            DHLOGE("RespPrepareRemoteInput error, SendMessage fail.");
+            return FAILURE;
+        }
+        return SUCCESS;
+    } else {
+        DHLOGE("RespPrepareRemoteInput error, sessionId <= 0.");
+        return FAILURE;
+    }
+}
+
+int32_t DistributedInputSinkTransport::RespUnprepareRemoteInput(
+    const int32_t sessionId, std::string &smsg)
+{
+    if (sessionId > 0) {
+        DHLOGI("RespUnprepareRemoteInput sessionId:%d, smsg:%s.", sessionId, smsg.c_str());
+        int32_t ret = SendMessage(sessionId, smsg);
+        if (ret != SUCCESS) {
+            DHLOGE("RespUnprepareRemoteInput error, SendMessage fail.");
+            return FAILURE;
+        }
+        return SUCCESS;
+    } else {
+        DHLOGE("RespUnprepareRemoteInput error, sessionId <= 0.");
+        return FAILURE;
+    }
+}
+
+int32_t DistributedInputSinkTransport::RespStartRemoteInput(
+    const int32_t sessionId, std::string &smsg)
+{
+    if (sessionId > 0) {
+        DHLOGI("RespStartRemoteInput sessionId:%d, result:%d, smsg:%s.", sessionId, smsg.c_str());
+        int32_t ret = SendMessage(sessionId, smsg);
+        if (ret != SUCCESS) {
+            DHLOGE("RespStartRemoteInput error, SendMessage fail.");
+            return FAILURE;
+        }
+        return SUCCESS;
+    } else {
+        DHLOGE("RespStartRemoteInput error, sessionId <= 0.");
+        return FAILURE;
+    }
+}
+
+int32_t DistributedInputSinkTransport::RespStopRemoteInput(
+    const int32_t sessionId, std::string &smsg)
+{
+    if (sessionId > 0) {
+        DHLOGI("RespStopRemoteInput sessionId:%d, smsg:%s.", sessionId, smsg.c_str());
+        int32_t ret = SendMessage(sessionId, smsg);
+        if (ret != SUCCESS) {
+            DHLOGE("RespStopRemoteInput error, SendMessage fail.");
+            return FAILURE;
+        }
+        return SUCCESS;
+    } else {
+        DHLOGE("RespStopRemoteInput error, sessionId <= 0.");
+        return FAILURE;
+    }
+}
+
+int32_t DistributedInputSinkTransport::SendMessage(int32_t sessionId, std::string &message)
+{
+    DHLOGI("start SendMessage");
+    if (message.size() > MSG_MAX_SIZE) {
+        DHLOGE("SendMessage error: message.size() > MSG_MAX_SIZE");
+        return FAILURE;
+    }
+    uint8_t *buf = (uint8_t *)calloc((MSG_MAX_SIZE), sizeof(uint8_t));
+    if (buf == nullptr) {
+        DHLOGE("SendMessage: malloc memory failed");
+        return FAILURE;
+    }
+    int32_t outLen = 0;
+    if (memcpy_s(buf, MSG_MAX_SIZE, (const uint8_t *)message.c_str(), message.size()) != SUCCESS) {
+        DHLOGE("SendMessage: memcpy memory failed");
+        free(buf);
+        return FAILURE;
+    }
+    outLen = message.size();
+    int32_t ret = SendBytes(sessionId, buf, outLen);
+    free(buf);
+    return ret;
+}
+
+int32_t DistributedInputSinkTransport::OnSessionOpened(int32_t sessionId, int32_t result)
+{
+    if (result != SUCCESS) {
+        DHLOGE("session open failed, sessionId %d", sessionId);
+        if (sessionIdSet_.count(sessionId) > 0) {
+            sessionIdSet_.erase(sessionId);
+        }
+        return SUCCESS;
+    }
+
+    // return 1 is client
+    int32_t sessionSide = GetSessionSide(sessionId);
+    DHLOGI("session open succeed, sessionId %d, sessionSide %d", sessionId, sessionSide);
+
+    char mySessionName[SESSION_NAME_SIZE_MAX] = "";
+    char peerSessionName[SESSION_NAME_SIZE_MAX] = "";
+    char peerDevId[DEVICE_ID_SIZE_MAX] = "";
+    int ret = GetMySessionName(sessionId, mySessionName, sizeof(mySessionName));
+    if (ret != SUCCESS) {
+        DHLOGI("get my session name failed, session id is %d.", sessionId);
+    }
+    // get other device session name
+    ret = GetPeerSessionName(sessionId, peerSessionName, sizeof(peerSessionName));
+    if (ret != SUCCESS) {
+        DHLOGI("get my peer session name failed, session id is %d.", sessionId);
+    }
+
+    ret = GetPeerDeviceId(sessionId, peerDevId, sizeof(peerDevId));
+    if (ret != SUCCESS) {
+        DHLOGI("get my peer device id failed, session id is %d.", sessionId);
+    }
+    DHLOGI("mySessionName:%s, peerSessionName:%s, peerDevId:%s.",
+        mySessionName, peerSessionName, peerDevId);
+
+    return SUCCESS;
+}
+
+void DistributedInputSinkTransport::OnSessionClosed(int32_t sessionId)
+{
+    DHLOGI("OnSessionClosed, sessionId:%d", sessionId);
+    if (sessionIdSet_.count(sessionId) > 0) {
+        sessionIdSet_.erase(sessionId);
+    }
+
+    DistributedInputSinkSwitch::GetInstance().RemoveSession(sessionId);
+}
+
+void DistributedInputSinkTransport::OnBytesReceived(int32_t sessionId, const void *data, uint32_t dataLen)
+{
+    DHLOGI("OnBytesReceived, sessionId:%d, dataLen:%d", sessionId, dataLen);
+    if (sessionId < 0 || data == nullptr || dataLen <= 0) {
+        DHLOGE("OnBytesReceived param check failed");
+        return;
+    }
+
+    uint8_t *buf = (uint8_t *)calloc(dataLen + 1, sizeof(uint8_t));
+    if (buf == nullptr) {
+        DHLOGE("OnBytesReceived: malloc memory failed");
+        return;
+    }
+
+    if (memcpy_s(buf, dataLen + 1, (const uint8_t*)data, dataLen) != SUCCESS) {
+        DHLOGE("OnBytesReceived: memcpy memory failed");
+        free(buf);
+        return;
+    }
+
+    std::string message = (char *)buf;
+    DHLOGI("OnBytesReceived message:%s.", message.c_str());
+    HandleSessionData(sessionId, message);
+
+    free(buf);
+    DHLOGI("OnBytesReceived completed");
+    return;
+}
+
+void DistributedInputSinkTransport::NotifyPrepareRemoteInput(int32_t sessionId, const nlohmann::json &recMsg)
+{
+    DHLOGI("OnBytesReceived cmdType is TRANS_SOURCE_MSG_PREPARE.");
+    if (!recMsg[DINPUT_SOFTBUS_KEY_DEVICE_ID].is_string()) {
+        DHLOGE("OnBytesReceived cmdType TRANS_SOURCE_MSG_PREPARE data type error.");
+        return;
+    }
+    std::string deviceId = recMsg[DINPUT_SOFTBUS_KEY_DEVICE_ID];
+    DHLOGI("OnBytesReceived cmdType is TRANS_SOURCE_MSG_PREPARE deviceId:%s.",
+        deviceId.c_str());
+    callback_->onPrepareRemoteInput(sessionId, deviceId);
+}
+
+void DistributedInputSinkTransport::NotifyUnprepareRemoteInput(int32_t sessionId, const nlohmann::json &recMsg)
+{
+    if (!recMsg[DINPUT_SOFTBUS_KEY_DEVICE_ID].is_string()) {
+        DHLOGE("OnBytesReceived cmdType TRANS_SOURCE_MSG_UNPREPARE, data type is error.");
+        return;
+    }
+    std::string deviceId = recMsg[DINPUT_SOFTBUS_KEY_DEVICE_ID];
+    DHLOGI("OnBytesReceived cmdType TRANS_SOURCE_MSG_UNPREPARE deviceId:%s.",
+        deviceId.c_str());
+    callback_->onUnprepareRemoteInput(sessionId);
+}
+
+void DistributedInputSinkTransport::NotifyStartRemoteInput(int32_t sessionId, const nlohmann::json &recMsg)
+{
+    if (!recMsg[DINPUT_SOFTBUS_KEY_DEVICE_ID].is_string()) {
+        DHLOGE("OnBytesReceived cmdType TRANS_SOURCE_MSG_START, data type error.");
+        return;
+    }
+    std::string deviceId = recMsg[DINPUT_SOFTBUS_KEY_DEVICE_ID];
+    uint32_t inputTypes = recMsg[DINPUT_SOFTBUS_KEY_INPUT_TYPE];
+    DHLOGI("OnBytesRecei,ved cmdType is TRANS_SOURCE_MSG_START deviceId:%s inputTypes:%d .",
+        deviceId.c_str(), inputTypes);
+    callback_->onStartRemoteInput(sessionId, inputTypes);
+}
+
+void DistributedInputSinkTransport::NotifyStopRemoteInput(int32_t sessionId, const nlohmann::json &recMsg)
+{
+    if (!recMsg[DINPUT_SOFTBUS_KEY_DEVICE_ID].is_string()) {
+        DHLOGE("OnBytesReceived cmdType TRANS_SOURCE_MSG_STOP, data type is error.");
+        return;
+    }
+    std::string deviceId = recMsg[DINPUT_SOFTBUS_KEY_DEVICE_ID];
+    uint32_t inputTypes = recMsg[DINPUT_SOFTBUS_KEY_INPUT_TYPE];
+    DHLOGI("OnBytesReceived cmdType is TRANS_SOURCE_MSG_STOP deviceId:%s.", deviceId.c_str());
+    callback_->onStopRemoteInput(sessionId, inputTypes);
+}
+
+void DistributedInputSinkTransport::HandleSessionData(int32_t sessionId, const std::string& message)
+{
+    if (callback_ == nullptr) {
+        DHLOGE("OnBytesReceived the callback_ is null, the message:%s abort.", message.c_str());
+        return;
+    }
+
+    nlohmann::json recMsg = nlohmann::json::parse(message);
+    if (recMsg.is_discarded()) {
+        DHLOGE("OnBytesReceived jsonStr error.");
+        return;
+    }
+
+    if (recMsg.contains(DINPUT_SOFTBUS_KEY_CMD_TYPE) != true) {
+        DHLOGE("OnBytesReceived message:%s is error, not contain cmdType.", message.c_str());
+        return;
+    }
+
+    if (recMsg[DINPUT_SOFTBUS_KEY_CMD_TYPE].is_number() != true) {
+        DHLOGE("OnBytesReceived cmdType is not number type.");
+        return;
+    }
+
+    int cmdType = recMsg[DINPUT_SOFTBUS_KEY_CMD_TYPE];
+    switch (cmdType) {
+        case TRANS_SOURCE_MSG_PREPARE: {
+            NotifyPrepareRemoteInput(sessionId, recMsg);
+            break;
+        }
+        case TRANS_SOURCE_MSG_UNPREPARE: {
+            NotifyUnprepareRemoteInput(sessionId, recMsg);
+            break;
+        }
+        case TRANS_SOURCE_MSG_START: {
+            NotifyStartRemoteInput(sessionId, recMsg);
+            break;
+        }
+        case TRANS_SOURCE_MSG_STOP: {
+            NotifyStopRemoteInput(sessionId, recMsg);
+            break;
+        }
+        default:
+            DHLOGE("OnBytesReceived cmdType is undefined.");
+            break;
+    }
+}
+
+void DistributedInputSinkTransport::CloseAllSession()
+{
+    std::vector<int32_t> vecSession = DistributedInputSinkSwitch::GetInstance().GetAllSessionId();
+    DHLOGI("CloseAllSession session vector size is %d.", vecSession.size());
+    for (int32_t kIndex = 0; kIndex < vecSession.size(); ++kIndex) {
+        CloseSession(vecSession[kIndex]);
+        DHLOGI("CloseAllSession [%d] sessionid is %d.", kIndex, vecSession[kIndex]);
+    }
+
+    // clear session data
+    DistributedInputSinkSwitch::GetInstance().InitSwitch();
+}
+} // namespace DistributedInput
+} // namespace DistributedHardware
+} // namespace OHOS