1 // SPDX-License-Identifier: Apache-2.0 2 // SPDX-FileCopyrightText: Copyright OpenBMC Authors 3 // SPDX-FileCopyrightText: Copyright 2019 Intel Corporation 4 #pragma once 5 6 #include <systemd/sd-id128.h> 7 8 #include <array> 9 #include <string> 10 11 namespace redfish 12 { 13 14 namespace systemd_utils 15 { 16 17 /** 18 * @brief Retrieve service root UUID 19 * 20 * @return Service root UUID 21 */ 22 23 inline std::string getUuid() 24 { 25 std::string ret; 26 // This ID needs to match the one in ipmid 27 sd_id128_t appId{{0Xe0, 0Xe1, 0X73, 0X76, 0X64, 0X61, 0X47, 0Xda, 0Xa5, 28 0X0c, 0Xd0, 0Xcc, 0X64, 0X12, 0X45, 0X78}}; 29 sd_id128_t machineId{}; 30 31 if (sd_id128_get_machine_app_specific(appId, &machineId) == 0) 32 { 33 std::array<char, SD_ID128_STRING_MAX> str{}; 34 ret = sd_id128_to_string(machineId, str.data()); 35 ret.insert(8, 1, '-'); 36 ret.insert(13, 1, '-'); 37 ret.insert(18, 1, '-'); 38 ret.insert(23, 1, '-'); 39 } 40 41 return ret; 42 } 43 44 } // namespace systemd_utils 45 } // namespace redfish 46