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/*
// 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.
*/
#include "mdrv2.hpp"
#include <sys/mman.h>
#include <fstream>
#include <phosphor-logging/elog-errors.hpp>
#include <sdbusplus/exception.hpp>
#include <xyz/openbmc_project/Smbios/MDR_V2/error.hpp>
namespace phosphor
{
namespace smbios
{
std::vector<uint8_t> MDR_V2::getDirectoryInformation(uint8_t dirIndex)
{
std::vector<uint8_t> responseDir;
if (dirIndex > smbiosDir.dirEntries)
{
responseDir.push_back(0);
throw sdbusplus::xyz::openbmc_project::Smbios::MDR_V2::Error::
InvalidParameter();
}
responseDir.push_back(mdr2Version);
responseDir.push_back(smbiosDir.dirVersion);
uint8_t returnedEntries = smbiosDir.dirEntries - dirIndex;
responseDir.push_back(returnedEntries);
if ((dirIndex + returnedEntries) >= smbiosDir.dirEntries)
{
responseDir.push_back(0);
}
else
{
responseDir.push_back(smbiosDir.dirEntries - dirIndex -
returnedEntries);
}
for (uint8_t index = dirIndex; index < smbiosDir.dirEntries; index++)
{
for (uint8_t indexId = 0; indexId < sizeof(DataIdStruct); indexId++)
{
responseDir.push_back(
smbiosDir.dir[index].common.id.dataInfo[indexId]);
}
}
return responseDir;
}
bool MDR_V2::smbiosIsAvailForUpdate(uint8_t index)
{
bool ret = false;
if (index > maxDirEntries)
{
return ret;
}
switch (smbiosDir.dir[index].stage)
{
case MDR2SMBIOSStatusEnum::mdr2Updating:
ret = false;
break;
case MDR2SMBIOSStatusEnum::mdr2Init:
// This *looks* like there should be a break statement here,
// as the effects of the previous statement are a noop given
// the following code that this falls through to.
// We've elected not to change it, though, since it's been
// this way since the old generation, and it would affect
// the way the code functions.
// If it ain't broke, don't fix it.
case MDR2SMBIOSStatusEnum::mdr2Loaded:
case MDR2SMBIOSStatusEnum::mdr2Updated:
if (smbiosDir.dir[index].lock == MDR2DirLockEnum::mdr2DirLock)
{
ret = false;
}
else
{
ret = true;
}
break;
default:
break;
}
return ret;
}
std::vector<uint8_t> MDR_V2::getDataOffer()
{
std::vector<uint8_t> offer(sizeof(DataIdStruct));
if (smbiosIsAvailForUpdate(0))
{
std::copy(smbiosDir.dir[0].common.id.dataInfo,
&smbiosDir.dir[0].common.id.dataInfo[16], offer.data());
}
else
{
phosphor::logging::log<phosphor::logging::level::ERR>(
"smbios is not ready for update");
throw sdbusplus::xyz::openbmc_project::Smbios::MDR_V2::Error::
UpdateInProgress();
}
return offer;
}
inline uint8_t MDR_V2::smbiosValidFlag(uint8_t index)
{
FlagStatus ret = FlagStatus::flagIsInvalid;
MDR2SMBIOSStatusEnum stage = smbiosDir.dir[index].stage;
MDR2DirLockEnum lock = smbiosDir.dir[index].lock;
switch (stage)
{
case MDR2SMBIOSStatusEnum::mdr2Loaded:
case MDR2SMBIOSStatusEnum::mdr2Updated:
if (lock == MDR2DirLockEnum::mdr2DirLock)
{
ret = FlagStatus::flagIsLocked; // locked
}
else
{
ret = FlagStatus::flagIsValid; // valid
}
break;
case MDR2SMBIOSStatusEnum::mdr2Updating:
case MDR2SMBIOSStatusEnum::mdr2Init:
ret = FlagStatus::flagIsInvalid; // invalid
break;
default:
break;
}
return static_cast<uint8_t>(ret);
}
std::vector<uint8_t> MDR_V2::getDataInformation(uint8_t idIndex)
{
std::vector<uint8_t> responseInfo;
responseInfo.push_back(mdr2Version);
if (idIndex >= maxDirEntries)
{
throw sdbusplus::xyz::openbmc_project::Smbios::MDR_V2::Error::
InvalidParameter();
}
for (uint8_t index = 0; index < sizeof(DataIdStruct); index++)
{
responseInfo.push_back(
smbiosDir.dir[idIndex].common.id.dataInfo[index]);
}
responseInfo.push_back(smbiosValidFlag(idIndex));
responseInfo.push_back(smbiosDir.dir[idIndex].common.size);
responseInfo.push_back(smbiosDir.dir[idIndex].common.dataVersion);
responseInfo.push_back(smbiosDir.dir[idIndex].common.timestamp);
return responseInfo;
}
bool MDR_V2::sendDirectoryInformation(uint8_t dirVersion, uint8_t dirIndex,
uint8_t returnedEntries,
uint8_t remainingEntries,
std::vector<uint8_t> dirEntry)
{
bool teminate = false;
if ((dirIndex >= maxDirEntries) || (returnedEntries < 1))
{
phosphor::logging::log<phosphor::logging::level::ERR>(
"Send Dir info failed - input parameter invalid");
throw sdbusplus::xyz::openbmc_project::Smbios::MDR_V2::Error::
InvalidParameter();
}
if (dirEntry.size() < sizeof(Mdr2DirEntry))
{
phosphor::logging::log<phosphor::logging::level::ERR>(
"Directory size invalid");
throw sdbusplus::xyz::openbmc_project::Smbios::MDR_V2::Error::
InvalidParameter();
}
if (dirVersion == smbiosDir.dirVersion)
{
teminate = true;
}
else
{
if (remainingEntries > 0)
{
teminate = false;
}
else
{
teminate = true;
smbiosDir.dirVersion = dirVersion;
}
uint8_t idIndex = dirIndex;
uint8_t* pData = dirEntry.data();
if (pData == nullptr)
{
return false;
}
for (uint8_t index = 0; index < returnedEntries; index++)
{
auto data = reinterpret_cast<const Mdr2DirEntry*>(pData);
smbiosDir.dir[idIndex + index].common.dataVersion =
data->dataVersion;
std::copy(data->id.dataInfo,
data->id.dataInfo + sizeof(DataIdStruct),
smbiosDir.dir[idIndex + index].common.id.dataInfo);
smbiosDir.dir[idIndex + index].common.dataSetSize = data->size;
smbiosDir.dir[idIndex + index].common.timestamp = data->timestamp;
pData += sizeof(returnedEntries);
}
}
return teminate;
}
bool MDR_V2::readDataFromFlash(MDRSMBIOSHeader* mdrHdr, uint8_t* data)
{
if (mdrHdr == nullptr)
{
phosphor::logging::log<phosphor::logging::level::ERR>(
"Read data from flash error - Invalid mdr header");
return false;
}
if (data == nullptr)
{
phosphor::logging::log<phosphor::logging::level::ERR>(
"Read data from flash error - Invalid data point");
return false;
}
std::ifstream smbiosFile(mdrType2File, std::ios_base::binary);
if (!smbiosFile.good())
{
phosphor::logging::log<phosphor::logging::level::ERR>(
"Read data from flash error - Open MDRV2 table file failure");
return false;
}
smbiosFile.clear();
smbiosFile.seekg(0, std::ios_base::end);
int fileLength = smbiosFile.tellg();
smbiosFile.seekg(0, std::ios_base::beg);
if (fileLength < sizeof(MDRSMBIOSHeader))
{
phosphor::logging::log<phosphor::logging::level::ERR>(
"MDR V2 file size is smaller than mdr header");
return false;
}
smbiosFile.read(reinterpret_cast<char*>(mdrHdr), sizeof(MDRSMBIOSHeader));
if (mdrHdr->dataSize > smbiosTableStorageSize)
{
phosphor::logging::log<phosphor::logging::level::ERR>(
"Data size out of limitation");
smbiosFile.close();
return false;
}
fileLength -= sizeof(MDRSMBIOSHeader);
if (fileLength < mdrHdr->dataSize)
{
smbiosFile.read(reinterpret_cast<char*>(data), fileLength);
}
else
{
smbiosFile.read(reinterpret_cast<char*>(data), mdrHdr->dataSize);
}
smbiosFile.close();
return true;
}
bool MDR_V2::sendDataInformation(uint8_t idIndex, uint8_t flag,
uint32_t dataLen, uint32_t dataVer,
uint32_t timeStamp)
{
if (idIndex >= maxDirEntries)
{
throw sdbusplus::xyz::openbmc_project::Smbios::MDR_V2::Error::
InvalidParameter();
}
int entryChanged = 0;
if (smbiosDir.dir[idIndex].common.dataSetSize != dataLen)
{
entryChanged++;
smbiosDir.dir[idIndex].common.dataSetSize = dataLen;
}
if (smbiosDir.dir[idIndex].common.dataVersion != dataVer)
{
entryChanged++;
smbiosDir.dir[idIndex].common.dataVersion = dataVer;
}
if (smbiosDir.dir[idIndex].common.timestamp != timeStamp)
{
entryChanged++;
smbiosDir.dir[idIndex].common.timestamp = timeStamp;
}
if (entryChanged == 0)
{
return false;
}
return true;
}
int MDR_V2::findIdIndex(std::vector<uint8_t> dataInfo)
{
if (dataInfo.size() != sizeof(DataIdStruct))
{
phosphor::logging::log<phosphor::logging::level::ERR>(
"Length of dataInfo invalid");
throw sdbusplus::xyz::openbmc_project::Smbios::MDR_V2::Error::
InvalidParameter();
}
std::array<uint8_t, 16> arrayDataInfo;
std::copy(dataInfo.begin(), dataInfo.end(), arrayDataInfo.begin());
for (int index = 0; index < smbiosDir.dirEntries; index++)
{
int info = 0;
for (; info < arrayDataInfo.size(); info++)
{
if (arrayDataInfo[info] !=
smbiosDir.dir[index].common.id.dataInfo[info])
{
break;
}
}
if (info == arrayDataInfo.size())
{
return index;
}
}
throw sdbusplus::xyz::openbmc_project::Smbios::MDR_V2::Error::InvalidId();
}
uint8_t MDR_V2::directoryEntries(uint8_t value)
{
value = smbiosDir.dirEntries;
return sdbusplus::xyz::openbmc_project::Smbios::server::MDR_V2::
directoryEntries(value);
}
void MDR_V2::systemInfoUpdate()
{
cpus.clear();
int num = getTotalCpuSlot();
if (num == -1)
{
phosphor::logging::log<phosphor::logging::level::ERR>(
"get cpu total slot failed");
return;
}
for (int index = 0; index < num; index++)
{
std::string path = cpuPath + std::to_string(index);
cpus.emplace_back(std::make_unique<phosphor::smbios::Cpu>(
bus, path, index, smbiosDir.dir[smbiosDirIndex].dataStorage));
}
}
int MDR_V2::getTotalCpuSlot()
{
uint8_t* dataIn = smbiosDir.dir[smbiosDirIndex].dataStorage;
int num = 0;
if (dataIn == nullptr)
{
phosphor::logging::log<phosphor::logging::level::ERR>(
"get cpu total slot failed - no storage data");
return -1;
}
while (1)
{
dataIn = getSMBIOSTypePtr(dataIn, processorsType);
if (dataIn == nullptr)
{
break;
}
num++;
dataIn = smbiosNextPtr(dataIn);
if (dataIn == nullptr)
{
break;
}
if (num >= limitEntryLen)
{
break;
}
}
return num;
}
bool MDR_V2::agentSynchronizeData()
{
struct MDRSMBIOSHeader mdr2SMBIOS;
bool status = readDataFromFlash(&mdr2SMBIOS,
smbiosDir.dir[smbiosDirIndex].dataStorage);
if (!status)
{
phosphor::logging::log<phosphor::logging::level::ERR>(
"agent data sync failed - read data from flash failed");
return false;
}
else
{
systemInfoUpdate();
smbiosDir.dir[smbiosDirIndex].common.dataVersion = mdr2SMBIOS.dirVer;
smbiosDir.dir[smbiosDirIndex].common.timestamp = mdr2SMBIOS.timestamp;
smbiosDir.dir[smbiosDirIndex].common.size = mdr2SMBIOS.dataSize;
smbiosDir.dir[smbiosDirIndex].stage = MDR2SMBIOSStatusEnum::mdr2Loaded;
smbiosDir.dir[smbiosDirIndex].lock = MDR2DirLockEnum::mdr2DirUnlock;
}
timer.stop();
return true;
}
std::vector<uint32_t> MDR_V2::synchronizeDirectoryCommonData(uint8_t idIndex,
uint32_t size)
{
std::chrono::microseconds usec(
defaultTimeout); // default lock time out is 2s
std::vector<uint32_t> result;
smbiosDir.dir[idIndex].common.size = size;
result.push_back(smbiosDir.dir[idIndex].common.dataSetSize);
result.push_back(smbiosDir.dir[idIndex].common.dataVersion);
result.push_back(smbiosDir.dir[idIndex].common.timestamp);
timer.start(usec);
return result;
}
} // namespace smbios
} // namespace phosphor