src/biccommands.cpp - openbmc/fb-ipmi-oem - Gitiles

 /*
  * Copyright (c)  2018 Intel Corporation.
  * Copyright (c)  2018-present Facebook.
  *
  * 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 <biccommands.hpp>
 #include <commandutils.hpp>
 #include <ipmid/api-types.hpp>
 #include <ipmid/api.hpp>
 #include <phosphor-logging/log.hpp>
 #include <types.hpp>

 #include <iostream>
 #include <variant>
 #include <vector>

 namespace ipmi
 {

 int sendBicCmd(uint8_t, uint8_t, uint8_t, std::vector<uint8_t>&,
                std::vector<uint8_t>&);

 using namespace phosphor::logging;

 #ifdef BIC_ENABLED
 static void registerBICFunctions() __attribute__((constructor));
 #endif

 extern message::Response::ptr executeIpmiCommand(message::Request::ptr);

 int sendBicCmd(uint8_t, uint8_t, uint8_t, std::vector<uint8_t>&,
                std::vector<uint8_t>&);

 constexpr std::array<uint8_t, 2> amdDimmLoopPrefix = {0xDD, 0xEE};

 namespace dimm
 {
 std::unordered_map<hostId, dimmLoop> dimmLoops;
 } // namespace dimm

 //----------------------------------------------------------------------
 // ipmiOemBicHandler (IPMI/Section - ) (CMD_OEM_BIC_INFO)
 // This Function will handle BIC request for netfn=0x38 and cmd=1
 // send the response back to the sender.
 //----------------------------------------------------------------------

 ipmi::RspType<IanaType, uint8_t, uint2_t, uint6_t, uint8_t, uint8_t,
               ipmi::message::Payload>
     ipmiOemBicHandler(ipmi::Context::ptr ctx, IanaType reqIana,
                       uint8_t interface, uint2_t lun, uint6_t netFnReq,
                       uint8_t cmdReq, SecureBuffer data)
 {
     ipmi::message::Response::ptr res;

     // Updating the correct netfn and cmd in the ipmi Context
     ctx->netFn = ((uint8_t)netFnReq);
     ctx->cmd = cmdReq;

     // creating ipmi message request for calling executeIpmiCommand function
     auto req = std::make_shared<ipmi::message::Request>(ctx, std::move(data));

     // Calling executeIpmiCommand request function
     res = ipmi::executeIpmiCommand(req);

     // sending the response with headers and payload
     return ipmi::responseSuccess(reqIana, interface, lun, ++netFnReq, cmdReq,
                                  res->cc, res->payload);
 }

 void dimmLoopPatternDetection(size_t hostId, std::vector<uint8_t> data)
 {
     if constexpr (postCodeSize != amdFourBytesPostCode)
     {
         return;
     }

     if (data.size() != amdFourBytesPostCode)
     {
         return;
     }

     /*
     Reference from Meta_BIOS_Requirement_Spec_v0.80
     For AMD platform, the POST code looping pattern format should be:
     (each group has 4 bytes)
     ●Group #0: [DDEE0000]
     ●Group #1: [DDEE] + Total Error Count
     ●Group #2: [DDEE] + Number of Error DIMM
     ●Group #3: [DDEE] + Dimm location
     ●Group #4: [DDEE] + major code
     ●Group #5: [DDEE] + minor code
     */
     std::array<uint8_t, 2> prefix = {data[3], data[2]};

     if (prefix != amdDimmLoopPrefix)
     {
         // Clear all the post code stored before.
         if (dimm::dimmLoops[hostId].startDetect)
         {
             dimm::dimmLoops[hostId].totalErrorCount = 0;
             dimm::dimmLoops[hostId].postCode.clear();

             dimm::dimmLoops[hostId].startDetect = false;
         }
         return;
     }

     // Which means it already got the dimm loop, stop checking again.
     if (dimm::dimmLoops[hostId].gotPattern)
     {
         return;
     }

     constexpr std::array<uint8_t, 4> anchorTag = {0x0, 0x0, 0xEE, 0xDD};
     if (std::ranges::equal(anchorTag, data))
     {
         dimm::dimmLoops[hostId].startDetect = true;
     }
     if (dimm::dimmLoops[hostId].startDetect)
     {
         // The second one is error count
         if (dimm::dimmLoops[hostId].postCode.size() % 6 == 1)
         {
             dimm::dimmLoops[hostId].totalErrorCount = (data[1] << 8) | data[0];
         }

         dimm::dimmLoops[hostId].postCode.push_back(data);

         // Is the last element of dimmloop then stop to detect
         if (dimm::dimmLoops[hostId].postCode.size() ==
             (dimm::dimmLoops[hostId].totalErrorCount * 6))
         {
             // Gets whole pattern success
             dimm::dimmLoops[hostId].gotPattern = true;
         }
     }
 }

 //----------------------------------------------------------------------
 // ipmiOemPostCodeHandler (CMD_OEM_BIC_POST_BUFFER_INFO)
 // This Function will handle BIC incoming postcode from multi-host for
 // netfn=0x38 and cmd=0x08 or 0x33 send the response back to the sender.
 //----------------------------------------------------------------------

 ipmi::RspType<IanaType> ipmiOemPostCodeHandler(ipmi::Context::ptr ctx,
                                                IanaType reqIana,
                                                uint8_t dataLen,
                                                std::vector<uint8_t> data)
 {
     // creating bus connection
     auto conn = getSdBus();

     auto hostId = findHost(ctx->hostIdx);
     if (!hostId)
     {
         lg2::error("Invalid Host Id received");
         return ipmi::responseInvalidCommand();
     }
     dimmLoopPatternDetection(*hostId, data);

     using postcode_t = std::tuple<uint64_t, std::vector<uint8_t>>;

     std::string dbusObjStr = dbusObj + std::to_string((ctx->hostIdx + 1));

     for (unsigned int index = 0; index < dataLen; index++)
     {
         uint64_t primaryPostCode = static_cast<uint64_t>(data[index]);
         auto postCode = postcode_t(primaryPostCode, {});

         try
         {
             auto method = conn->new_method_call(
                 "xyz.openbmc_project.State.Boot.Raw", dbusObjStr.c_str(),
                 "org.freedesktop.DBus.Properties", "Set");

             // Adding parameters to method call
             method.append(dbusService, "Value",
                           std::variant<postcode_t>(postCode));

             // Invoke method call function
             auto reply = conn->call(method);
         }

         catch (std::exception& e)
         {
             phosphor::logging::log<phosphor::logging::level::ERR>(
                 "post code handler error\n");

             // sending the Error response
             return ipmi::responseResponseError();
         }
     }

     return ipmi::responseSuccess(reqIana);
 }

 //----------------------------------------------------------------------
 // ipmiOemGetBicGpioState (CMD_OEM_GET_BIC_GPIO_STATE)
 // This Function will handle BIC GPIO stats for
 // netfn=0x38 and cmd=0x03 send the response back to the sender.
 //----------------------------------------------------------------------

 ipmi::RspType<IanaType, std::vector<uint8_t>>
     ipmiOemGetBicGpioState(ipmi::Context::ptr ctx, std::vector<uint8_t> reqIana)
 {
     std::vector<uint8_t> respData;

     if (std::equal(reqIana.begin(), reqIana.end(), iana.begin()) == false)
     {
         phosphor::logging::log<phosphor::logging::level::ERR>(
             "Invalid IANA number");
         return ipmi::responseInvalidFieldRequest();
     }

     uint8_t bicAddr = (uint8_t)ctx->hostIdx << 2;

     if (sendBicCmd(ctx->netFn, ctx->cmd, bicAddr, reqIana, respData))
     {
         return ipmi::responseUnspecifiedError();
     }

     std::vector<uint8_t> gpioState;
     IanaType respIana;

     auto r =
         std::ranges::copy_n(respData.begin(), iana.size(), respIana.begin()).in;
     std::copy(r, respData.end(), std::back_inserter(gpioState));

     return ipmi::responseSuccess(respIana, gpioState);
 }

 //----------------------------------------------------------------------
 // ipmiOemSetHostPowerState (CMD_OEM_SET_HOST_POWER_STATE)
 // This Function will handle BIC incoming IPMI request for
 // setting host current state for netfn=0x38 and cmd=0x0C
 // send the response back to the sender.
 //----------------------------------------------------------------------

 ipmi::RspType<IanaType> ipmiOemSetHostPowerState(ipmi::Context::ptr ctx,
                                                  IanaType reqIana,
                                                  uint8_t status)
 {
     std::string targetUnit;

     switch (static_cast<HostPowerState>(status))
     {
         case HostPowerState::HOST_POWER_ON:
             targetUnit = "obmc-host-startmin@.target";
             break;
         case HostPowerState::HOST_POWER_OFF:
             targetUnit = "obmc-host-stop@.target";
             break;
         default:
             phosphor::logging::log<phosphor::logging::level::ERR>(
                 "IPMI ipmiOemHostPowerStatus power status error");
             return ipmi::responseUnspecifiedError();
     }

     int mousePos = targetUnit.find('@');
     targetUnit.insert(mousePos + 1, std::to_string(ctx->hostIdx + 1));

     auto conn = getSdBus();
     auto method = conn->new_method_call(systemdService, systemdObjPath,
                                         systemdInterface, "StartUnit");
     method.append(targetUnit);
     method.append("replace");

     try
     {
         conn->call_noreply(method);
     }
     catch (const sdbusplus::exception::SdBusError& e)
     {
         phosphor::logging::log<phosphor::logging::level::ERR>(
             "IPMI ipmiOemHostPowerStatus Failed in call method",
             phosphor::logging::entry("ERROR=%s", e.what()));
         return ipmi::responseUnspecifiedError();
     }

     return ipmi::responseSuccess(reqIana);
 }

 //----------------------------------------------------------------------
 // ipmiOemGetBiosFlashSize (CMD_OEM_GET_FLASH_SIZE)
 // This Function will return the bios flash size
 // netfn=0x38 and cmd=0x19 send the response back to the sender.
 //----------------------------------------------------------------------

 ipmi::RspType<IanaType, flashSize>
     ipmiOemGetBiosFlashSize(ipmi::Context::ptr ctx, IanaType ianaReq,
                             uint8_t target)
 {
     if (iana != ianaReq)
     {
         phosphor::logging::log<phosphor::logging::level::ERR>(
             "Invalid IANA ID length received");
         return ipmi::responseReqDataLenInvalid();
     }

     std::vector<uint8_t> respData;
     uint8_t bicAddr = (uint8_t)ctx->hostIdx << 2;
     std::vector<uint8_t> reqData(ianaReq.begin(), ianaReq.end());
     reqData.emplace_back(target);

     if (sendBicCmd(ctx->netFn, ctx->cmd, bicAddr, reqData, respData))
     {
         return ipmi::responseUnspecifiedError();
     }

     if (respData.size() != flashSizeRespLen)
     {
         phosphor::logging::log<phosphor::logging::level::ERR>(
             "Invalid Response Data length received");
         return ipmi::responseReqDataLenInvalid();
     }

     IanaType ianaResp;
     std::copy_n(respData.begin(), ianaResp.size(), ianaResp.begin());

     if (iana != ianaResp)
     {
         phosphor::logging::log<phosphor::logging::level::ERR>(
             "Invalid IANA ID received");
         return ipmi::responseInvalidCommand();
     }

     flashSize flashResp;
     std::vector<uint8_t>::iterator respDataIter = respData.begin();
     std::advance(respDataIter, ianaResp.size());
     std::copy_n(respDataIter, flashResp.size(), flashResp.begin());

     // sending the success response.
     return ipmi::responseSuccess(ianaResp, flashResp);
 }

 //----------------------------------------------------------------------
 // ipmiOemClearCmos (CMD_OEM_CLEAR_CMOS)
 // This Function will clear the CMOS.
 // netfn=0x38 and cmd=0x25
 //----------------------------------------------------------------------
 ipmi::RspType<IanaType> ipmiOemClearCmos(ipmi::Context::ptr ctx,
                                          IanaType ianaReq)
 {
     if (iana != ianaReq)
     {
         phosphor::logging::log<phosphor::logging::level::ERR>(
             "Invalid request of IANA ID length received");
         return ipmi::responseReqDataLenInvalid();
     }

     uint8_t bicAddr = (uint8_t)ctx->hostIdx << 2;

     std::vector<uint8_t> respData;
     std::vector<uint8_t> reqData(ianaReq.begin(), ianaReq.end());

     if (sendBicCmd(ctx->netFn, ctx->cmd, bicAddr, reqData, respData))
     {
         return ipmi::responseUnspecifiedError();
     }

     if (respData.size() != iana.size())
     {
         return ipmi::responseReqDataLenInvalid();
     }

     IanaType resp;
     std::copy_n(respData.begin(), resp.size(), resp.begin());

     if (iana != resp)
     {
         phosphor::logging::log<phosphor::logging::level::ERR>(
             "Invalid response of IANA ID received");
         return ipmi::responseUnspecifiedError();
     }

     // sending the success response.
     return ipmi::responseSuccess(resp);
 }

 [[maybe_unused]] static void registerBICFunctions(void)
 {
     phosphor::logging::log<phosphor::logging::level::INFO>(
         "Registering BIC commands");

     ipmi::registerHandler(ipmi::prioOpenBmcBase, ipmi::netFnOemFive,
                           static_cast<Cmd>(fb_bic_cmds::CMD_OEM_BIC_INFO),
                           ipmi::Privilege::User, ipmiOemBicHandler);
     ipmi::registerHandler(
         ipmi::prioOpenBmcBase, ipmi::netFnOemFive,
         static_cast<Cmd>(fb_bic_cmds::CMD_OEM_SEND_POST_BUFFER_TO_BMC),
         ipmi::Privilege::User, ipmiOemPostCodeHandler);
     ipmi::registerHandler(
         ipmi::prioOpenBmcBase, ipmi::netFnOemFive,
         static_cast<Cmd>(fb_bic_cmds::CMD_OEM_1S_4BYTE_POST_BUF),
         ipmi::Privilege::User, ipmiOemPostCodeHandler);
     ipmi::registerHandler(
         ipmi::prioOemBase, ipmi::netFnOemFive,
         static_cast<Cmd>(fb_bic_cmds::CMD_OEM_GET_BIC_GPIO_STATE),
         ipmi::Privilege::User, ipmiOemGetBicGpioState);
     ipmi::registerHandler(
         ipmi::prioOpenBmcBase, ipmi::netFnOemFive,
         static_cast<Cmd>(fb_bic_cmds::CMD_OEM_SET_HOST_POWER_STATE),
         ipmi::Privilege::User, ipmiOemSetHostPowerState);
     ipmi::registerHandler(ipmi::prioOpenBmcBase, ipmi::netFnOemFive,
                           static_cast<Cmd>(fb_bic_cmds::CMD_OEM_GET_FLASH_SIZE),
                           ipmi::Privilege::User, ipmiOemGetBiosFlashSize);
     ipmi::registerHandler(ipmi::prioOpenBmcBase, ipmi::netFnOemFive,
                           static_cast<Cmd>(fb_bic_cmds::CMD_OEM_CLEAR_CMOS),
                           ipmi::Privilege::User, ipmiOemClearCmos);
     return;
 }

 } // namespace ipmi
	/*
	* Copyright (c) 2018 Intel Corporation.
	* Copyright (c) 2018-present Facebook.
	*
	* 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 <biccommands.hpp>
	#include <commandutils.hpp>
	#include <ipmid/api-types.hpp>
	#include <ipmid/api.hpp>
	#include <phosphor-logging/log.hpp>
	#include <types.hpp>

	#include <iostream>
	#include <variant>
	#include <vector>

	namespace ipmi
	{

	int sendBicCmd(uint8_t, uint8_t, uint8_t, std::vector<uint8_t>&,
	std::vector<uint8_t>&);

	using namespace phosphor::logging;

	#ifdef BIC_ENABLED
	static void registerBICFunctions() __attribute__((constructor));
	#endif

	extern message::Response::ptr executeIpmiCommand(message::Request::ptr);

	int sendBicCmd(uint8_t, uint8_t, uint8_t, std::vector<uint8_t>&,
	std::vector<uint8_t>&);

	constexpr std::array<uint8_t, 2> amdDimmLoopPrefix = {0xDD, 0xEE};

	namespace dimm
	{
	std::unordered_map<hostId, dimmLoop> dimmLoops;
	} // namespace dimm

	//----------------------------------------------------------------------
	// ipmiOemBicHandler (IPMI/Section - ) (CMD_OEM_BIC_INFO)
	// This Function will handle BIC request for netfn=0x38 and cmd=1
	// send the response back to the sender.
	//----------------------------------------------------------------------

	ipmi::RspType<IanaType, uint8_t, uint2_t, uint6_t, uint8_t, uint8_t,
	ipmi::message::Payload>
	ipmiOemBicHandler(ipmi::Context::ptr ctx, IanaType reqIana,
	uint8_t interface, uint2_t lun, uint6_t netFnReq,
	uint8_t cmdReq, SecureBuffer data)
	{
	ipmi::message::Response::ptr res;

	// Updating the correct netfn and cmd in the ipmi Context
	ctx->netFn = ((uint8_t)netFnReq);
	ctx->cmd = cmdReq;

	// creating ipmi message request for calling executeIpmiCommand function
	auto req = std::make_shared<ipmi::message::Request>(ctx, std::move(data));

	// Calling executeIpmiCommand request function
	res = ipmi::executeIpmiCommand(req);

	// sending the response with headers and payload
	return ipmi::responseSuccess(reqIana, interface, lun, ++netFnReq, cmdReq,
	res->cc, res->payload);
	}

	void dimmLoopPatternDetection(size_t hostId, std::vector<uint8_t> data)
	{
	if constexpr (postCodeSize != amdFourBytesPostCode)
	{
	return;
	}

	if (data.size() != amdFourBytesPostCode)
	{
	return;
	}

	/*
	Reference from Meta_BIOS_Requirement_Spec_v0.80
	For AMD platform, the POST code looping pattern format should be:
	(each group has 4 bytes)
	●Group #0: [DDEE0000]
	●Group #1: [DDEE] + Total Error Count
	●Group #2: [DDEE] + Number of Error DIMM
	●Group #3: [DDEE] + Dimm location
	●Group #4: [DDEE] + major code
	●Group #5: [DDEE] + minor code
	*/
	std::array<uint8_t, 2> prefix = {data[3], data[2]};

	if (prefix != amdDimmLoopPrefix)
	{
	// Clear all the post code stored before.
	if (dimm::dimmLoops[hostId].startDetect)
	{
	dimm::dimmLoops[hostId].totalErrorCount = 0;
	dimm::dimmLoops[hostId].postCode.clear();

	dimm::dimmLoops[hostId].startDetect = false;
	}
	return;
	}

	// Which means it already got the dimm loop, stop checking again.
	if (dimm::dimmLoops[hostId].gotPattern)
	{
	return;
	}

	constexpr std::array<uint8_t, 4> anchorTag = {0x0, 0x0, 0xEE, 0xDD};
	if (std::ranges::equal(anchorTag, data))
	{
	dimm::dimmLoops[hostId].startDetect = true;
	}
	if (dimm::dimmLoops[hostId].startDetect)
	{
	// The second one is error count
	if (dimm::dimmLoops[hostId].postCode.size() % 6 == 1)
	{
	dimm::dimmLoops[hostId].totalErrorCount = (data[1] << 8) \| data[0];
	}

	dimm::dimmLoops[hostId].postCode.push_back(data);

	// Is the last element of dimmloop then stop to detect
	if (dimm::dimmLoops[hostId].postCode.size() ==
	(dimm::dimmLoops[hostId].totalErrorCount * 6))
	{
	// Gets whole pattern success
	dimm::dimmLoops[hostId].gotPattern = true;
	}
	}
	}

	//----------------------------------------------------------------------
	// ipmiOemPostCodeHandler (CMD_OEM_BIC_POST_BUFFER_INFO)
	// This Function will handle BIC incoming postcode from multi-host for
	// netfn=0x38 and cmd=0x08 or 0x33 send the response back to the sender.
	//----------------------------------------------------------------------

	ipmi::RspType<IanaType> ipmiOemPostCodeHandler(ipmi::Context::ptr ctx,
	IanaType reqIana,
	uint8_t dataLen,
	std::vector<uint8_t> data)
	{
	// creating bus connection
	auto conn = getSdBus();

	auto hostId = findHost(ctx->hostIdx);
	if (!hostId)
	{
	lg2::error("Invalid Host Id received");
	return ipmi::responseInvalidCommand();
	}
	dimmLoopPatternDetection(*hostId, data);

	using postcode_t = std::tuple<uint64_t, std::vector<uint8_t>>;

	std::string dbusObjStr = dbusObj + std::to_string((ctx->hostIdx + 1));

	for (unsigned int index = 0; index < dataLen; index++)
	{
	uint64_t primaryPostCode = static_cast<uint64_t>(data[index]);
	auto postCode = postcode_t(primaryPostCode, {});

	try
	{
	auto method = conn->new_method_call(
	"xyz.openbmc_project.State.Boot.Raw", dbusObjStr.c_str(),
	"org.freedesktop.DBus.Properties", "Set");

	// Adding parameters to method call
	method.append(dbusService, "Value",
	std::variant<postcode_t>(postCode));

	// Invoke method call function
	auto reply = conn->call(method);
	}

	catch (std::exception& e)
	{
	phosphor::logging::log<phosphor::logging::level::ERR>(
	"post code handler error\n");

	// sending the Error response
	return ipmi::responseResponseError();
	}
	}

	return ipmi::responseSuccess(reqIana);
	}

	//----------------------------------------------------------------------
	// ipmiOemGetBicGpioState (CMD_OEM_GET_BIC_GPIO_STATE)
	// This Function will handle BIC GPIO stats for
	// netfn=0x38 and cmd=0x03 send the response back to the sender.
	//----------------------------------------------------------------------

	ipmi::RspType<IanaType, std::vector<uint8_t>>
	ipmiOemGetBicGpioState(ipmi::Context::ptr ctx, std::vector<uint8_t> reqIana)
	{
	std::vector<uint8_t> respData;

	if (std::equal(reqIana.begin(), reqIana.end(), iana.begin()) == false)
	{
	phosphor::logging::log<phosphor::logging::level::ERR>(
	"Invalid IANA number");
	return ipmi::responseInvalidFieldRequest();
	}

	uint8_t bicAddr = (uint8_t)ctx->hostIdx << 2;

	if (sendBicCmd(ctx->netFn, ctx->cmd, bicAddr, reqIana, respData))
	{
	return ipmi::responseUnspecifiedError();
	}

	std::vector<uint8_t> gpioState;
	IanaType respIana;

	auto r =
	std::ranges::copy_n(respData.begin(), iana.size(), respIana.begin()).in;
	std::copy(r, respData.end(), std::back_inserter(gpioState));

	return ipmi::responseSuccess(respIana, gpioState);
	}

	//----------------------------------------------------------------------
	// ipmiOemSetHostPowerState (CMD_OEM_SET_HOST_POWER_STATE)
	// This Function will handle BIC incoming IPMI request for
	// setting host current state for netfn=0x38 and cmd=0x0C
	// send the response back to the sender.
	//----------------------------------------------------------------------

	ipmi::RspType<IanaType> ipmiOemSetHostPowerState(ipmi::Context::ptr ctx,
	IanaType reqIana,
	uint8_t status)
	{
	std::string targetUnit;

	switch (static_cast<HostPowerState>(status))
	{
	case HostPowerState::HOST_POWER_ON:
	targetUnit = "obmc-host-startmin@.target";
	break;
	case HostPowerState::HOST_POWER_OFF:
	targetUnit = "obmc-host-stop@.target";
	break;
	default:
	phosphor::logging::log<phosphor::logging::level::ERR>(
	"IPMI ipmiOemHostPowerStatus power status error");
	return ipmi::responseUnspecifiedError();
	}

	int mousePos = targetUnit.find('@');
	targetUnit.insert(mousePos + 1, std::to_string(ctx->hostIdx + 1));

	auto conn = getSdBus();
	auto method = conn->new_method_call(systemdService, systemdObjPath,
	systemdInterface, "StartUnit");
	method.append(targetUnit);
	method.append("replace");

	try
	{
	conn->call_noreply(method);
	}
	catch (const sdbusplus::exception::SdBusError& e)
	{
	phosphor::logging::log<phosphor::logging::level::ERR>(
	"IPMI ipmiOemHostPowerStatus Failed in call method",
	phosphor::logging::entry("ERROR=%s", e.what()));
	return ipmi::responseUnspecifiedError();
	}

	return ipmi::responseSuccess(reqIana);
	}

	//----------------------------------------------------------------------
	// ipmiOemGetBiosFlashSize (CMD_OEM_GET_FLASH_SIZE)
	// This Function will return the bios flash size
	// netfn=0x38 and cmd=0x19 send the response back to the sender.
	//----------------------------------------------------------------------

	ipmi::RspType<IanaType, flashSize>
	ipmiOemGetBiosFlashSize(ipmi::Context::ptr ctx, IanaType ianaReq,
	uint8_t target)
	{
	if (iana != ianaReq)
	{
	phosphor::logging::log<phosphor::logging::level::ERR>(
	"Invalid IANA ID length received");
	return ipmi::responseReqDataLenInvalid();
	}

	std::vector<uint8_t> respData;
	uint8_t bicAddr = (uint8_t)ctx->hostIdx << 2;
	std::vector<uint8_t> reqData(ianaReq.begin(), ianaReq.end());
	reqData.emplace_back(target);

	if (sendBicCmd(ctx->netFn, ctx->cmd, bicAddr, reqData, respData))
	{
	return ipmi::responseUnspecifiedError();
	}

	if (respData.size() != flashSizeRespLen)
	{
	phosphor::logging::log<phosphor::logging::level::ERR>(
	"Invalid Response Data length received");
	return ipmi::responseReqDataLenInvalid();
	}

	IanaType ianaResp;
	std::copy_n(respData.begin(), ianaResp.size(), ianaResp.begin());

	if (iana != ianaResp)
	{
	phosphor::logging::log<phosphor::logging::level::ERR>(
	"Invalid IANA ID received");
	return ipmi::responseInvalidCommand();
	}

	flashSize flashResp;
	std::vector<uint8_t>::iterator respDataIter = respData.begin();
	std::advance(respDataIter, ianaResp.size());
	std::copy_n(respDataIter, flashResp.size(), flashResp.begin());

	// sending the success response.
	return ipmi::responseSuccess(ianaResp, flashResp);
	}

	//----------------------------------------------------------------------
	// ipmiOemClearCmos (CMD_OEM_CLEAR_CMOS)
	// This Function will clear the CMOS.
	// netfn=0x38 and cmd=0x25
	//----------------------------------------------------------------------
	ipmi::RspType<IanaType> ipmiOemClearCmos(ipmi::Context::ptr ctx,
	IanaType ianaReq)
	{
	if (iana != ianaReq)
	{
	phosphor::logging::log<phosphor::logging::level::ERR>(
	"Invalid request of IANA ID length received");
	return ipmi::responseReqDataLenInvalid();
	}

	uint8_t bicAddr = (uint8_t)ctx->hostIdx << 2;

	std::vector<uint8_t> respData;
	std::vector<uint8_t> reqData(ianaReq.begin(), ianaReq.end());

	if (sendBicCmd(ctx->netFn, ctx->cmd, bicAddr, reqData, respData))
	{
	return ipmi::responseUnspecifiedError();
	}

	if (respData.size() != iana.size())
	{
	return ipmi::responseReqDataLenInvalid();
	}

	IanaType resp;
	std::copy_n(respData.begin(), resp.size(), resp.begin());

	if (iana != resp)
	{
	phosphor::logging::log<phosphor::logging::level::ERR>(
	"Invalid response of IANA ID received");
	return ipmi::responseUnspecifiedError();
	}

	// sending the success response.
	return ipmi::responseSuccess(resp);
	}

	[[maybe_unused]] static void registerBICFunctions(void)
	{
	phosphor::logging::log<phosphor::logging::level::INFO>(
	"Registering BIC commands");

	ipmi::registerHandler(ipmi::prioOpenBmcBase, ipmi::netFnOemFive,
	static_cast<Cmd>(fb_bic_cmds::CMD_OEM_BIC_INFO),
	ipmi::Privilege::User, ipmiOemBicHandler);
	ipmi::registerHandler(
	ipmi::prioOpenBmcBase, ipmi::netFnOemFive,
	static_cast<Cmd>(fb_bic_cmds::CMD_OEM_SEND_POST_BUFFER_TO_BMC),
	ipmi::Privilege::User, ipmiOemPostCodeHandler);
	ipmi::registerHandler(
	ipmi::prioOpenBmcBase, ipmi::netFnOemFive,
	static_cast<Cmd>(fb_bic_cmds::CMD_OEM_1S_4BYTE_POST_BUF),
	ipmi::Privilege::User, ipmiOemPostCodeHandler);
	ipmi::registerHandler(
	ipmi::prioOemBase, ipmi::netFnOemFive,
	static_cast<Cmd>(fb_bic_cmds::CMD_OEM_GET_BIC_GPIO_STATE),
	ipmi::Privilege::User, ipmiOemGetBicGpioState);
	ipmi::registerHandler(
	ipmi::prioOpenBmcBase, ipmi::netFnOemFive,
	static_cast<Cmd>(fb_bic_cmds::CMD_OEM_SET_HOST_POWER_STATE),
	ipmi::Privilege::User, ipmiOemSetHostPowerState);
	ipmi::registerHandler(ipmi::prioOpenBmcBase, ipmi::netFnOemFive,
	static_cast<Cmd>(fb_bic_cmds::CMD_OEM_GET_FLASH_SIZE),
	ipmi::Privilege::User, ipmiOemGetBiosFlashSize);
	ipmi::registerHandler(ipmi::prioOpenBmcBase, ipmi::netFnOemFive,
	static_cast<Cmd>(fb_bic_cmds::CMD_OEM_CLEAR_CMOS),
	ipmi::Privilege::User, ipmiOemClearCmos);
	return;
	}

	} // namespace ipmi