Redfish: Supporting ServiceRootUUID field for /redfish/v1/Managers/{ManagerId}schema

- Created a common utiity file called, systemd_utils.hpp to hold the function getUuid.

- Added json field support for ServiceEntryPointUUID field to retrieve it from system_utils.hpp.

- Amended the header file, service_root.hpp to get the uuid from the newly created system_utils.hpp file.

Changes tested with QEMU emulator and Witherspoon image => Passed

Redfish Validator => Passed

Change-Id: If7f2aba49942a0b315fb012da29af194ebd0ea6f
Signed-off-by: Bernard Wong <trials13@hotmail.com>

1 files changed, 54 insertions, 0 deletions

diff --git a/redfish-core/include/utils/systemd_utils.hpp b/redfish-core/include/utils/systemd_utils.hpp
new file mode 100644
index 0000000..1c34fca
--- /dev/null
+++ b/redfish-core/include/utils/systemd_utils.hpp
@@ -0,0 +1,54 @@
+/*
+// Copyright (c) 2019 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 <systemd/sd-id128.h>
+
+namespace redfish
+{
+
+namespace systemd_utils
+{
+
+/**
+ * @brief Retrieve service root UUID
+ *
+ * @return Service root UUID
+ */
+
+const std::string getUuid()
+{
+    std::string ret;
+    // This ID needs to match the one in ipmid
+    sd_id128_t appId = SD_ID128_MAKE(e0, e1, 73, 76, 64, 61, 47, da, a5, 0c, d0,
+                                     cc, 64, 12, 45, 78);
+    sd_id128_t machineId = SD_ID128_NULL;
+
+    if (sd_id128_get_machine_app_specific(appId, &machineId) == 0)
+    {
+        std::array<char, SD_ID128_STRING_MAX> str;
+        ret = sd_id128_to_string(machineId, str.data());
+        ret.insert(8, 1, '-');
+        ret.insert(13, 1, '-');
+        ret.insert(18, 1, '-');
+        ret.insert(23, 1, '-');
+    }
+
+    return ret;
+}
+
+} // namespace systemd_utils
+} // namespace redfish