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/*
// Copyright (c) 2018 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 <map>
static constexpr uint16_t mdrSmbiosSize = 32 * 1024; // 32K
static constexpr uint16_t mdrAcpiTableSize = 32 * 1024; // 32K
static constexpr uint16_t mdrMemMappingSize = 8 * 1024; // 8K
static constexpr uint16_t mdrScsiBootSize = 8 * 1024; // 8K
static constexpr uint16_t mdrNvmeSize = 1 * 1024; // 1K
static constexpr uint16_t smbiosTableStorageSize = 0xffff;
static constexpr uint8_t mdrVersion = 0x11; // MDR version 1.1
static constexpr const char *smbiosPath = "/etc/smbios";
static constexpr const char *mdrType1File = "/etc/smbios/smbios1";
static constexpr const char *mdrType2File = "/etc/smbios/smbios2";
static constexpr const char *mdrAcpiFile = "/etc/smbios/acpi";
static constexpr const char *mdrMemMapFile = "/etc/smbios/memmapping";
static constexpr const char *mdrScsiBootFile = "/etc/smbios/scsiboot";
static constexpr const char *mdrNvmeFile = "/etc/smbios/nvme";
typedef enum
{
mdrNone = 0,
mdrSmbios = 1,
mdrAcpi = 2,
mdrMemMap = 3,
mdrScsiBoot = 4,
mdrNvme = 5,
maxMdrIndex = 6
} MDRRegionIndex;
typedef enum
{
regionLockUnlocked = 0,
regionLockStrict,
regionLockPreemptable
} MDRLockType;
struct MDRState
{
uint8_t mdrVersion;
uint8_t regionId;
uint8_t valid;
uint8_t updateCount;
uint8_t lockPolicy;
uint16_t regionLength;
uint16_t regionUsed;
uint8_t crc8;
} __attribute__((packed));
struct ManagedDataRegion
{
const char *flashName;
uint8_t *regionData;
uint16_t msTimeout;
struct MDRState state;
uint8_t sessionId;
} __attribute__((packed));
struct BIOSInfo
{
uint8_t biosVersion;
};
static constexpr const char *dimmPath =
"/xyz/openbmc_project/inventory/system/chassis/motherboard/dimm";
static constexpr const char *cpuPath =
"/xyz/openbmc_project/inventory/system/chassis/motherboard/cpu";
static constexpr const char *systemPath =
"/xyz/openbmc_project/inventory/system/chassis/motherboard/bios";
typedef enum
{
biosType = 0,
systemType = 1,
baseboardType = 2,
chassisType = 3,
processorsType = 4,
memoryControllerType = 5,
memoryModuleInformationType = 6,
cacheType = 7,
portConnectorType = 8,
systemSlots = 9,
onBoardDevicesType = 10,
oemStringsType = 11,
systemCconfigurationOptionsType = 12,
biosLanguageType = 13,
groupAssociatonsType = 14,
systemEventLogType = 15,
physicalMemoryArrayType = 16,
memoryDeviceType = 17,
} SmbiosType;
static constexpr uint8_t separateLen = 2;
// To get the point of next smbios item
static inline uint8_t *smbiosNextPtr(uint8_t *smbiosDataIn)
{
if (smbiosDataIn == nullptr)
{
return nullptr;
}
uint8_t *smbiosData = smbiosDataIn + *(smbiosDataIn + 1);
int len = 0;
while ((*smbiosData | *(smbiosData + 1)) != 0)
{
smbiosData++;
len++;
if (len >= mdrSmbiosSize) // To avoid endless loop
{
return nullptr;
}
}
return smbiosData + separateLen;
}
// When first time run smbiosTypePtr, need to send the RegionS[].regionData
// to smbiosDataIn
static inline uint8_t *smbiosTypePtr(uint8_t *smbiosDataIn, uint8_t typeId)
{
if (smbiosDataIn == nullptr)
{
return nullptr;
}
char *smbiosData = reinterpret_cast<char *>(smbiosDataIn);
while ((*smbiosData != '\0') || (*(smbiosData + 1) != '\0'))
{
if (*smbiosData != typeId)
{
uint32_t len = *(smbiosData + 1);
smbiosData += len;
while ((*smbiosData != '\0') || (*(smbiosData + 1) != '\0'))
{
smbiosData++;
len++;
if (len >= mdrSmbiosSize) // To avoid endless loop
{
return nullptr;
}
}
smbiosData += separateLen;
continue;
}
return reinterpret_cast<uint8_t *>(smbiosData);
}
return nullptr;
}
static inline std::string positionToString(uint8_t positionNum,
uint8_t structLen, uint8_t *dataIn)
{
if (dataIn == nullptr)
{
return "";
}
char *target;
uint8_t stringLen = 0;
uint16_t limit = mdrSmbiosSize; // set a limit to avoid endless loop
target = reinterpret_cast<char *>(dataIn + structLen);
for (uint8_t index = 1; index < positionNum; index++)
{
for (; *target != '\0'; target++)
{
limit--;
if (limit < 1)
{
return "";
}
}
target++;
if (*target == '\0')
{
return ""; // 0x00 0x00 means end of the entry.
}
}
std::string result = target;
return result;
}
// Find the specific string in smbios item
static inline std::string seekString(uint8_t *smbiosDataIn, uint8_t stringOrder)
{
if (smbiosDataIn == nullptr)
return "";
uint8_t len = *(smbiosDataIn + 1);
return positionToString(stringOrder, len, smbiosDataIn);
}
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