Config service manager implementation.

Added new service for managing the service(RMCP+, ssh, web)
properties like state, port, channel etc. This is common
service supports both systemctl and iptables.

Example usage: Blocking specific service port and restricting
network traffic on specific channels etc.

Unit Test:
 - Changed port of RMCP+ service and validated.
 - Restricted network traffic on specific channel(eth0)
    and cross validated functionality.

Change-Id: I835a4723bc5d5a65efb6ec329f74f3932e841522
Signed-off-by: AppaRao Puli <apparao.puli@linux.intel.com>
diff --git a/inc/srvcfg_manager.hpp b/inc/srvcfg_manager.hpp
new file mode 100644
index 0000000..8979f78
--- /dev/null
+++ b/inc/srvcfg_manager.hpp
@@ -0,0 +1,69 @@
+/*

+// Copyright (c) 2018 Intel Corporation

+//

+// 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.

+*/

+#pragma once

+#include <sdbusplus/timer.hpp>

+#include "utils.hpp"

+

+namespace phosphor

+{

+namespace service

+{

+

+static constexpr const char *serviceConfigSrvName =

+    "xyz.openbmc_project.Control.Service.Manager";

+static constexpr const char *serviceConfigIntfName =

+    "xyz.openbmc_project.Control.Service.Attributes";

+

+enum class UpdatedProp

+{

+    port = 1,

+    channel,

+    state

+};

+

+class ServiceConfig

+{

+  public:

+    ServiceConfig(sdbusplus::asio::object_server &srv_,

+                  std::shared_ptr<sdbusplus::asio::connection> &conn_,

+                  std::string objPath_, std::string unitName);

+    ~ServiceConfig() = default;

+

+    void applySystemDServiceConfig();

+    void startServiceRestartTimer();

+

+    std::shared_ptr<sdbusplus::asio::connection> conn;

+    uint8_t updatedFlag;

+

+  private:

+    sdbusplus::asio::object_server &server;

+    std::string objPath;

+

+    uint16_t portNum;

+    std::string protocol;

+    std::string stateValue;

+    std::vector<std::string> channelList;

+

+    void registerProperties();

+    std::string sysDUnitName;

+    std::string unitSocketFilePath;

+    std::string sysDSockObjPath;

+

+    void syncWithSystemD1Properties();

+};

+

+} // namespace service

+} // namespace phosphor

diff --git a/inc/utils.hpp b/inc/utils.hpp
new file mode 100644
index 0000000..67ced4c
--- /dev/null
+++ b/inc/utils.hpp
@@ -0,0 +1,40 @@
+/*

+// Copyright (c) 2018 Intel Corporation

+//

+// 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.

+*/

+#pragma once

+#include <ctime>

+#include <chrono>

+#include <string>

+#include <sdbusplus/asio/object_server.hpp>

+#include <phosphor-logging/elog-errors.hpp>

+#include <xyz/openbmc_project/Common/error.hpp>

+#include <experimental/filesystem>

+#include <boost/asio.hpp>

+

+static constexpr const char *sysdActionStartUnit = "StartUnit";

+static constexpr const char *sysdActionStopUnit = "StopUnit";

+

+void systemdDaemonReload(

+    const std::shared_ptr<sdbusplus::asio::connection> &conn);

+

+void systemdUnitAction(const std::shared_ptr<sdbusplus::asio::connection> &conn,

+                       const std::string &unitName,

+                       const std::string &actionMethod);

+

+void systemdUnitFileStateChange(

+    const std::shared_ptr<sdbusplus::asio::connection> &conn,

+    const std::string &unitName, const std::string &unitState);

+

+bool checkSystemdUnitExist(const std::string &unitName);