dcmihandler.cpp - openbmc/phosphor-host-ipmid - Gitiles

 #include "dcmihandler.hpp"
 #include "host-ipmid/ipmid-api.h"
 #include <phosphor-logging/elog-errors.hpp>
 #include <stdio.h>
 #include <string.h>
 #include <stdint.h>
 #include "utils.hpp"
 #include "xyz/openbmc_project/Common/error.hpp"

 using namespace phosphor::logging;
 using InternalFailure =
         sdbusplus::xyz::openbmc_project::Common::Error::InternalFailure;

 void register_netfn_dcmi_functions() __attribute__((constructor));


 ipmi_ret_t ipmi_dcmi_get_power_limit(ipmi_netfn_t netfn, ipmi_cmd_t cmd,
                               ipmi_request_t request, ipmi_response_t response,
                               ipmi_data_len_t data_len, ipmi_context_t context)
 {
     ipmi_ret_t rc = IPMI_DCMI_CC_NO_ACTIVE_POWER_LIMIT;

     // dcmi-v1-5-rev-spec.pdf 6.6.2.
     // This is good enough for OpenBMC support for OpenPOWER based systems
     // TODO research if more is needed
     uint8_t data_response[] = { 0xDC, 0x00, 0x00, 0x01, 0x00, 0x00,
                                 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                                 0x00, 0x01};


     printf("IPMI DCMI_GET_POWER_LEVEL\n");

     memcpy(response, data_response, sizeof(data_response));
     *data_len = sizeof(data_response);

     return rc;
 }

 namespace dcmi
 {

 void readAssetTagObjectTree(dcmi::assettag::ObjectTree& objectTree)
 {
     static constexpr auto mapperBusName = "xyz.openbmc_project.ObjectMapper";
     static constexpr auto mapperObjPath = "/xyz/openbmc_project/object_mapper";
     static constexpr auto mapperIface = "xyz.openbmc_project.ObjectMapper";
     static constexpr auto inventoryRoot = "/xyz/openbmc_project/inventory/";

     sdbusplus::bus::bus bus{ipmid_get_sd_bus_connection()};
     auto depth = 0;

     auto mapperCall = bus.new_method_call(mapperBusName,
                                           mapperObjPath,
                                           mapperIface,
                                           "GetSubTree");

     mapperCall.append(inventoryRoot);
     mapperCall.append(depth);
     mapperCall.append(std::vector<std::string>({dcmi::assetTagIntf}));

     auto mapperReply = bus.call(mapperCall);
     if (mapperReply.is_method_error())
     {
         log<level::ERR>("Error in mapper call");
         elog<InternalFailure>();
     }

     mapperReply.read(objectTree);

     if (objectTree.empty())
     {
         log<level::ERR>("AssetTag property is not populated");
         elog<InternalFailure>();
     }
 }

 std::string readAssetTag()
 {
     sdbusplus::bus::bus bus{ipmid_get_sd_bus_connection()};
     dcmi::assettag::ObjectTree objectTree;

     // Read the object tree with the inventory root to figure out the object
     // that has implemented the Asset tag interface.
     readAssetTagObjectTree(objectTree);

     auto method = bus.new_method_call(
             (objectTree.begin()->second.begin()->first).c_str(),
             (objectTree.begin()->first).c_str(),
             dcmi::propIntf,
             "Get");
     method.append(dcmi::assetTagIntf);
     method.append(dcmi::assetTagProp);

     auto reply = bus.call(method);
     if (reply.is_method_error())
     {
         log<level::ERR>("Error in reading asset tag");
         elog<InternalFailure>();
     }

     sdbusplus::message::variant<std::string> assetTag;
     reply.read(assetTag);

     return assetTag.get<std::string>();
 }

 void writeAssetTag(const std::string& assetTag)
 {
     sdbusplus::bus::bus bus{ipmid_get_sd_bus_connection()};
     dcmi::assettag::ObjectTree objectTree;

     // Read the object tree with the inventory root to figure out the object
     // that has implemented the Asset tag interface.
     readAssetTagObjectTree(objectTree);

     auto method = bus.new_method_call(
             (objectTree.begin()->second.begin()->first).c_str(),
             (objectTree.begin()->first).c_str(),
             dcmi::propIntf,
             "Set");
     method.append(dcmi::assetTagIntf);
     method.append(dcmi::assetTagProp);
     method.append(sdbusplus::message::variant<std::string>(assetTag));

     auto reply = bus.call(method);
     if (reply.is_method_error())
     {
         log<level::ERR>("Error in writing asset tag");
         elog<InternalFailure>();
     }
 }

 } // namespace dcmi

 ipmi_ret_t getAssetTag(ipmi_netfn_t netfn, ipmi_cmd_t cmd,
                        ipmi_request_t request, ipmi_response_t response,
                        ipmi_data_len_t data_len, ipmi_context_t context)
 {
     auto requestData = reinterpret_cast<const dcmi::GetAssetTagRequest*>
                    (request);
     std::vector<uint8_t> outPayload(sizeof(dcmi::GetAssetTagResponse));
     auto responseData = reinterpret_cast<dcmi::GetAssetTagResponse*>
             (outPayload.data());

     if (requestData->groupID != dcmi::groupExtId)
     {
         *data_len = 0;
         return IPMI_CC_INVALID_FIELD_REQUEST;
     }

     // Verify offset to read and number of bytes to read are not exceeding the
     // range.
     if ((requestData->offset > dcmi::assetTagMaxOffset) ||
         (requestData->bytes > dcmi::maxBytes) ||
         ((requestData->offset + requestData->bytes) > dcmi::assetTagMaxSize))
     {
         *data_len = 0;
         return IPMI_CC_PARM_OUT_OF_RANGE;
     }

     std::string assetTag;

     try
     {
         assetTag = dcmi::readAssetTag();
     }
     catch (InternalFailure& e)
     {
         *data_len = 0;
         return IPMI_CC_UNSPECIFIED_ERROR;
     }

     responseData->groupID = dcmi::groupExtId;

     // Return if the asset tag is not populated.
     if (!assetTag.size())
     {
         responseData->tagLength = 0;
         memcpy(response, outPayload.data(), outPayload.size());
         *data_len = outPayload.size();
         return IPMI_CC_OK;
     }

     // If the asset tag is longer than 63 bytes, restrict it to 63 bytes to suit
     // Get Asset Tag command.
     if (assetTag.size() > dcmi::assetTagMaxSize)
     {
         assetTag.resize(dcmi::assetTagMaxSize);
     }

     // If the requested offset is beyond the asset tag size.
     if (requestData->offset >= assetTag.size())
     {
         *data_len = 0;
         return IPMI_CC_PARM_OUT_OF_RANGE;
     }

     auto returnData = assetTag.substr(requestData->offset, requestData->bytes);

     responseData->tagLength = assetTag.size();

     memcpy(response, outPayload.data(), outPayload.size());
     memcpy(static_cast<uint8_t*>(response) + outPayload.size(),
            returnData.data(), returnData.size());
     *data_len = outPayload.size() + returnData.size();

     return IPMI_CC_OK;
 }

 ipmi_ret_t setAssetTag(ipmi_netfn_t netfn, ipmi_cmd_t cmd,
                        ipmi_request_t request, ipmi_response_t response,
                        ipmi_data_len_t data_len, ipmi_context_t context)
 {
     auto requestData = reinterpret_cast<const dcmi::SetAssetTagRequest*>
                    (request);
     std::vector<uint8_t> outPayload(sizeof(dcmi::SetAssetTagResponse));
     auto responseData = reinterpret_cast<dcmi::SetAssetTagResponse*>
             (outPayload.data());

     if (requestData->groupID != dcmi::groupExtId)
     {
         *data_len = 0;
         return IPMI_CC_INVALID_FIELD_REQUEST;
     }

     // Verify offset to read and number of bytes to read are not exceeding the
     // range.
     if ((requestData->offset > dcmi::assetTagMaxOffset) ||
         (requestData->bytes > dcmi::maxBytes) ||
         ((requestData->offset + requestData->bytes) > dcmi::assetTagMaxSize))
     {
         *data_len = 0;
         return IPMI_CC_PARM_OUT_OF_RANGE;
     }

     std::string assetTag;

     try
     {
         assetTag = dcmi::readAssetTag();

         if (requestData->offset > assetTag.size())
         {
             *data_len = 0;
             return IPMI_CC_PARM_OUT_OF_RANGE;
         }

         assetTag.replace(requestData->offset,
                          assetTag.size() - requestData->offset,
                          static_cast<const char*>(request) +
                          sizeof(dcmi::SetAssetTagRequest),
                          requestData->bytes);

         dcmi::writeAssetTag(assetTag);

         responseData->groupID = dcmi::groupExtId;
         responseData->tagLength = assetTag.size();
         memcpy(response, outPayload.data(), outPayload.size());
         *data_len = outPayload.size();

         return IPMI_CC_OK;
     }
     catch (InternalFailure& e)
     {
         *data_len = 0;
         return IPMI_CC_UNSPECIFIED_ERROR;
     }
 }

 void register_netfn_dcmi_functions()
 {
     // <Get Power Limit>
     printf("Registering NetFn:[0x%X], Cmd:[0x%X]\n",NETFUN_GRPEXT, IPMI_CMD_DCMI_GET_POWER);
     ipmi_register_callback(NETFUN_GRPEXT, IPMI_CMD_DCMI_GET_POWER, NULL, ipmi_dcmi_get_power_limit,
                            PRIVILEGE_USER);

     // <Get Asset Tag>
     printf("Registering NetFn:[0x%X], Cmd:[0x%X]\n",NETFUN_GRPEXT, IPMI_CMD_DCMI_GET_ASSET_TAG);
     ipmi_register_callback(NETFUN_GRPEXT, IPMI_CMD_DCMI_GET_ASSET_TAG, NULL, getAssetTag,
                            PRIVILEGE_USER);

     // <Set Asset Tag>
     printf("Registering NetFn:[0x%X], Cmd:[0x%X]\n",NETFUN_GRPEXT, IPMI_CMD_DCMI_SET_ASSET_TAG);
     ipmi_register_callback(NETFUN_GRPEXT, IPMI_CMD_DCMI_SET_ASSET_TAG, NULL, setAssetTag,
                            PRIVILEGE_OPERATOR);
     return;
 }
 // 956379
	#include "dcmihandler.hpp"
	#include "host-ipmid/ipmid-api.h"
	#include <phosphor-logging/elog-errors.hpp>
	#include <stdio.h>
	#include <string.h>
	#include <stdint.h>
	#include "utils.hpp"
	#include "xyz/openbmc_project/Common/error.hpp"

	using namespace phosphor::logging;
	using InternalFailure =
	sdbusplus::xyz::openbmc_project::Common::Error::InternalFailure;

	void register_netfn_dcmi_functions() __attribute__((constructor));


	ipmi_ret_t ipmi_dcmi_get_power_limit(ipmi_netfn_t netfn, ipmi_cmd_t cmd,
	ipmi_request_t request, ipmi_response_t response,
	ipmi_data_len_t data_len, ipmi_context_t context)
	{
	ipmi_ret_t rc = IPMI_DCMI_CC_NO_ACTIVE_POWER_LIMIT;

	// dcmi-v1-5-rev-spec.pdf 6.6.2.
	// This is good enough for OpenBMC support for OpenPOWER based systems
	// TODO research if more is needed
	uint8_t data_response[] = { 0xDC, 0x00, 0x00, 0x01, 0x00, 0x00,
	0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
	0x00, 0x01};



	printf("IPMI DCMI_GET_POWER_LEVEL\n");

	memcpy(response, data_response, sizeof(data_response));
	*data_len = sizeof(data_response);

	return rc;
	}

	namespace dcmi
	{

	void readAssetTagObjectTree(dcmi::assettag::ObjectTree& objectTree)
	{
	static constexpr auto mapperBusName = "xyz.openbmc_project.ObjectMapper";
	static constexpr auto mapperObjPath = "/xyz/openbmc_project/object_mapper";
	static constexpr auto mapperIface = "xyz.openbmc_project.ObjectMapper";
	static constexpr auto inventoryRoot = "/xyz/openbmc_project/inventory/";

	sdbusplus::bus::bus bus{ipmid_get_sd_bus_connection()};
	auto depth = 0;

	auto mapperCall = bus.new_method_call(mapperBusName,
	mapperObjPath,
	mapperIface,
	"GetSubTree");

	mapperCall.append(inventoryRoot);
	mapperCall.append(depth);
	mapperCall.append(std::vector<std::string>({dcmi::assetTagIntf}));

	auto mapperReply = bus.call(mapperCall);
	if (mapperReply.is_method_error())
	{
	log<level::ERR>("Error in mapper call");
	elog<InternalFailure>();
	}

	mapperReply.read(objectTree);

	if (objectTree.empty())
	{
	log<level::ERR>("AssetTag property is not populated");
	elog<InternalFailure>();
	}
	}

	std::string readAssetTag()
	{
	sdbusplus::bus::bus bus{ipmid_get_sd_bus_connection()};
	dcmi::assettag::ObjectTree objectTree;

	// Read the object tree with the inventory root to figure out the object
	// that has implemented the Asset tag interface.
	readAssetTagObjectTree(objectTree);

	auto method = bus.new_method_call(
	(objectTree.begin()->second.begin()->first).c_str(),
	(objectTree.begin()->first).c_str(),
	dcmi::propIntf,
	"Get");
	method.append(dcmi::assetTagIntf);
	method.append(dcmi::assetTagProp);

	auto reply = bus.call(method);
	if (reply.is_method_error())
	{
	log<level::ERR>("Error in reading asset tag");
	elog<InternalFailure>();
	}

	sdbusplus::message::variant<std::string> assetTag;
	reply.read(assetTag);

	return assetTag.get<std::string>();
	}

	void writeAssetTag(const std::string& assetTag)
	{
	sdbusplus::bus::bus bus{ipmid_get_sd_bus_connection()};
	dcmi::assettag::ObjectTree objectTree;

	// Read the object tree with the inventory root to figure out the object
	// that has implemented the Asset tag interface.
	readAssetTagObjectTree(objectTree);

	auto method = bus.new_method_call(
	(objectTree.begin()->second.begin()->first).c_str(),
	(objectTree.begin()->first).c_str(),
	dcmi::propIntf,
	"Set");
	method.append(dcmi::assetTagIntf);
	method.append(dcmi::assetTagProp);
	method.append(sdbusplus::message::variant<std::string>(assetTag));

	auto reply = bus.call(method);
	if (reply.is_method_error())
	{
	log<level::ERR>("Error in writing asset tag");
	elog<InternalFailure>();
	}
	}

	} // namespace dcmi

	ipmi_ret_t getAssetTag(ipmi_netfn_t netfn, ipmi_cmd_t cmd,
	ipmi_request_t request, ipmi_response_t response,
	ipmi_data_len_t data_len, ipmi_context_t context)
	{
	auto requestData = reinterpret_cast<const dcmi::GetAssetTagRequest*>
	(request);
	std::vector<uint8_t> outPayload(sizeof(dcmi::GetAssetTagResponse));
	auto responseData = reinterpret_cast<dcmi::GetAssetTagResponse*>
	(outPayload.data());

	if (requestData->groupID != dcmi::groupExtId)
	{
	*data_len = 0;
	return IPMI_CC_INVALID_FIELD_REQUEST;
	}

	// Verify offset to read and number of bytes to read are not exceeding the
	// range.
	if ((requestData->offset > dcmi::assetTagMaxOffset) \|\|
	(requestData->bytes > dcmi::maxBytes) \|\|
	((requestData->offset + requestData->bytes) > dcmi::assetTagMaxSize))
	{
	*data_len = 0;
	return IPMI_CC_PARM_OUT_OF_RANGE;
	}

	std::string assetTag;

	try
	{
	assetTag = dcmi::readAssetTag();
	}
	catch (InternalFailure& e)
	{
	*data_len = 0;
	return IPMI_CC_UNSPECIFIED_ERROR;
	}

	responseData->groupID = dcmi::groupExtId;

	// Return if the asset tag is not populated.
	if (!assetTag.size())
	{
	responseData->tagLength = 0;
	memcpy(response, outPayload.data(), outPayload.size());
	*data_len = outPayload.size();
	return IPMI_CC_OK;
	}

	// If the asset tag is longer than 63 bytes, restrict it to 63 bytes to suit
	// Get Asset Tag command.
	if (assetTag.size() > dcmi::assetTagMaxSize)
	{
	assetTag.resize(dcmi::assetTagMaxSize);
	}

	// If the requested offset is beyond the asset tag size.
	if (requestData->offset >= assetTag.size())
	{
	*data_len = 0;
	return IPMI_CC_PARM_OUT_OF_RANGE;
	}

	auto returnData = assetTag.substr(requestData->offset, requestData->bytes);

	responseData->tagLength = assetTag.size();

	memcpy(response, outPayload.data(), outPayload.size());
	memcpy(static_cast<uint8_t*>(response) + outPayload.size(),
	returnData.data(), returnData.size());
	*data_len = outPayload.size() + returnData.size();

	return IPMI_CC_OK;
	}

	ipmi_ret_t setAssetTag(ipmi_netfn_t netfn, ipmi_cmd_t cmd,
	ipmi_request_t request, ipmi_response_t response,
	ipmi_data_len_t data_len, ipmi_context_t context)
	{
	auto requestData = reinterpret_cast<const dcmi::SetAssetTagRequest*>
	(request);
	std::vector<uint8_t> outPayload(sizeof(dcmi::SetAssetTagResponse));
	auto responseData = reinterpret_cast<dcmi::SetAssetTagResponse*>
	(outPayload.data());

	if (requestData->groupID != dcmi::groupExtId)
	{
	*data_len = 0;
	return IPMI_CC_INVALID_FIELD_REQUEST;
	}

	// Verify offset to read and number of bytes to read are not exceeding the
	// range.
	if ((requestData->offset > dcmi::assetTagMaxOffset) \|\|
	(requestData->bytes > dcmi::maxBytes) \|\|
	((requestData->offset + requestData->bytes) > dcmi::assetTagMaxSize))
	{
	*data_len = 0;
	return IPMI_CC_PARM_OUT_OF_RANGE;
	}

	std::string assetTag;

	try
	{
	assetTag = dcmi::readAssetTag();

	if (requestData->offset > assetTag.size())
	{
	*data_len = 0;
	return IPMI_CC_PARM_OUT_OF_RANGE;
	}

	assetTag.replace(requestData->offset,
	assetTag.size() - requestData->offset,
	static_cast<const char*>(request) +
	sizeof(dcmi::SetAssetTagRequest),
	requestData->bytes);

	dcmi::writeAssetTag(assetTag);

	responseData->groupID = dcmi::groupExtId;
	responseData->tagLength = assetTag.size();
	memcpy(response, outPayload.data(), outPayload.size());
	*data_len = outPayload.size();

	return IPMI_CC_OK;
	}
	catch (InternalFailure& e)
	{
	*data_len = 0;
	return IPMI_CC_UNSPECIFIED_ERROR;
	}
	}

	void register_netfn_dcmi_functions()
	{
	// <Get Power Limit>
	printf("Registering NetFn:[0x%X], Cmd:[0x%X]\n",NETFUN_GRPEXT, IPMI_CMD_DCMI_GET_POWER);
	ipmi_register_callback(NETFUN_GRPEXT, IPMI_CMD_DCMI_GET_POWER, NULL, ipmi_dcmi_get_power_limit,
	PRIVILEGE_USER);

	// <Get Asset Tag>
	printf("Registering NetFn:[0x%X], Cmd:[0x%X]\n",NETFUN_GRPEXT, IPMI_CMD_DCMI_GET_ASSET_TAG);
	ipmi_register_callback(NETFUN_GRPEXT, IPMI_CMD_DCMI_GET_ASSET_TAG, NULL, getAssetTag,
	PRIVILEGE_USER);

	// <Set Asset Tag>
	printf("Registering NetFn:[0x%X], Cmd:[0x%X]\n",NETFUN_GRPEXT, IPMI_CMD_DCMI_SET_ASSET_TAG);
	ipmi_register_callback(NETFUN_GRPEXT, IPMI_CMD_DCMI_SET_ASSET_TAG, NULL, setAssetTag,
	PRIVILEGE_OPERATOR);
	return;
	}
	// 956379