| /** @file | |
| This driver measures SMBIOS table to TPM. | |
| Copyright (c) 2015 - 2022, Intel Corporation. All rights reserved.<BR> | |
| SPDX-License-Identifier: BSD-2-Clause-Patent | |
| **/ | |
| #include <PiDxe.h> | |
| #include <Protocol/Smbios.h> | |
| #include <IndustryStandard/SmBios.h> | |
| #include <IndustryStandard/UefiTcgPlatform.h> | |
| #include <Guid/EventGroup.h> | |
| #include <Guid/SmBios.h> | |
| #include <Library/DebugLib.h> | |
| #include <Library/UefiDriverEntryPoint.h> | |
| #include <Library/UefiLib.h> | |
| #include <Library/BaseLib.h> | |
| #include <Library/BaseMemoryLib.h> | |
| #include <Library/MemoryAllocationLib.h> | |
| #include <Library/UefiBootServicesTableLib.h> | |
| #include <Library/PcdLib.h> | |
| #include <Library/TpmMeasurementLib.h> | |
| #define FIELD_SIZE_OF(TYPE, Field) ((UINTN)sizeof(((TYPE *)0)->Field)) | |
| typedef struct { | |
| UINT8 Type; | |
| UINTN Offset; | |
| UINTN Size; | |
| UINT32 Flags; | |
| } SMBIOS_FILTER_TABLE; | |
| #define SMBIOS_FILTER_TABLE_FLAG_IS_STRING BIT0 | |
| typedef struct { | |
| UINT8 Type; | |
| SMBIOS_FILTER_TABLE *Filter; // NULL means all fields | |
| UINTN FilterCount; | |
| } SMBIOS_FILTER_STRUCT; | |
| // | |
| // Platform Specific Policy | |
| // | |
| SMBIOS_FILTER_TABLE mSmbiosFilterType1BlackList[] = { | |
| { 0x01, OFFSET_OF (SMBIOS_TABLE_TYPE1, SerialNumber), FIELD_SIZE_OF (SMBIOS_TABLE_TYPE1, SerialNumber), SMBIOS_FILTER_TABLE_FLAG_IS_STRING }, | |
| { 0x01, OFFSET_OF (SMBIOS_TABLE_TYPE1, Uuid), FIELD_SIZE_OF (SMBIOS_TABLE_TYPE1, Uuid), 0 }, | |
| { 0x01, OFFSET_OF (SMBIOS_TABLE_TYPE1, WakeUpType), FIELD_SIZE_OF (SMBIOS_TABLE_TYPE1, WakeUpType), 0 }, | |
| }; | |
| SMBIOS_FILTER_TABLE mSmbiosFilterType2BlackList[] = { | |
| { 0x02, OFFSET_OF (SMBIOS_TABLE_TYPE2, SerialNumber), FIELD_SIZE_OF (SMBIOS_TABLE_TYPE2, SerialNumber), SMBIOS_FILTER_TABLE_FLAG_IS_STRING }, | |
| { 0x02, OFFSET_OF (SMBIOS_TABLE_TYPE2, LocationInChassis), FIELD_SIZE_OF (SMBIOS_TABLE_TYPE2, LocationInChassis), SMBIOS_FILTER_TABLE_FLAG_IS_STRING }, | |
| }; | |
| SMBIOS_FILTER_TABLE mSmbiosFilterType3BlackList[] = { | |
| { 0x03, OFFSET_OF (SMBIOS_TABLE_TYPE3, SerialNumber), FIELD_SIZE_OF (SMBIOS_TABLE_TYPE3, SerialNumber), SMBIOS_FILTER_TABLE_FLAG_IS_STRING }, | |
| { 0x03, OFFSET_OF (SMBIOS_TABLE_TYPE3, AssetTag), FIELD_SIZE_OF (SMBIOS_TABLE_TYPE3, AssetTag), SMBIOS_FILTER_TABLE_FLAG_IS_STRING }, | |
| }; | |
| SMBIOS_FILTER_TABLE mSmbiosFilterType4BlackList[] = { | |
| { 0x04, OFFSET_OF (SMBIOS_TABLE_TYPE4, SerialNumber), FIELD_SIZE_OF (SMBIOS_TABLE_TYPE4, SerialNumber), SMBIOS_FILTER_TABLE_FLAG_IS_STRING }, | |
| { 0x04, OFFSET_OF (SMBIOS_TABLE_TYPE4, AssetTag), FIELD_SIZE_OF (SMBIOS_TABLE_TYPE4, AssetTag), SMBIOS_FILTER_TABLE_FLAG_IS_STRING }, | |
| { 0x04, OFFSET_OF (SMBIOS_TABLE_TYPE4, PartNumber), FIELD_SIZE_OF (SMBIOS_TABLE_TYPE4, PartNumber), SMBIOS_FILTER_TABLE_FLAG_IS_STRING }, | |
| { 0x04, OFFSET_OF (SMBIOS_TABLE_TYPE4, CoreCount), FIELD_SIZE_OF (SMBIOS_TABLE_TYPE4, CoreCount), 0 }, | |
| { 0x04, OFFSET_OF (SMBIOS_TABLE_TYPE4, EnabledCoreCount), FIELD_SIZE_OF (SMBIOS_TABLE_TYPE4, EnabledCoreCount), 0 }, | |
| { 0x04, OFFSET_OF (SMBIOS_TABLE_TYPE4, ThreadCount), FIELD_SIZE_OF (SMBIOS_TABLE_TYPE4, ThreadCount), 0 }, | |
| { 0x04, OFFSET_OF (SMBIOS_TABLE_TYPE4, CoreCount2), FIELD_SIZE_OF (SMBIOS_TABLE_TYPE4, CoreCount2), 0 }, | |
| { 0x04, OFFSET_OF (SMBIOS_TABLE_TYPE4, EnabledCoreCount2), FIELD_SIZE_OF (SMBIOS_TABLE_TYPE4, EnabledCoreCount2), 0 }, | |
| { 0x04, OFFSET_OF (SMBIOS_TABLE_TYPE4, ThreadCount2), FIELD_SIZE_OF (SMBIOS_TABLE_TYPE4, ThreadCount2), 0 }, | |
| { 0x04, OFFSET_OF (SMBIOS_TABLE_TYPE4, Voltage), FIELD_SIZE_OF (SMBIOS_TABLE_TYPE4, Voltage), 0 }, | |
| { 0x04, OFFSET_OF (SMBIOS_TABLE_TYPE4, CurrentSpeed), FIELD_SIZE_OF (SMBIOS_TABLE_TYPE4, CurrentSpeed), 0 }, | |
| }; | |
| SMBIOS_FILTER_TABLE mSmbiosFilterType17BlackList[] = { | |
| { 0x11, OFFSET_OF (SMBIOS_TABLE_TYPE17, SerialNumber), FIELD_SIZE_OF (SMBIOS_TABLE_TYPE17, SerialNumber), SMBIOS_FILTER_TABLE_FLAG_IS_STRING }, | |
| { 0x11, OFFSET_OF (SMBIOS_TABLE_TYPE17, AssetTag), FIELD_SIZE_OF (SMBIOS_TABLE_TYPE17, AssetTag), SMBIOS_FILTER_TABLE_FLAG_IS_STRING }, | |
| { 0x11, OFFSET_OF (SMBIOS_TABLE_TYPE17, PartNumber), FIELD_SIZE_OF (SMBIOS_TABLE_TYPE17, PartNumber), SMBIOS_FILTER_TABLE_FLAG_IS_STRING }, | |
| }; | |
| SMBIOS_FILTER_TABLE mSmbiosFilterType22BlackList[] = { | |
| { 0x16, OFFSET_OF (SMBIOS_TABLE_TYPE22, SerialNumber), FIELD_SIZE_OF (SMBIOS_TABLE_TYPE22, SerialNumber), SMBIOS_FILTER_TABLE_FLAG_IS_STRING }, | |
| { 0x16, OFFSET_OF (SMBIOS_TABLE_TYPE22, SBDSSerialNumber), FIELD_SIZE_OF (SMBIOS_TABLE_TYPE22, SBDSSerialNumber), 0 }, | |
| { 0x16, OFFSET_OF (SMBIOS_TABLE_TYPE22, SBDSManufactureDate), FIELD_SIZE_OF (SMBIOS_TABLE_TYPE22, SBDSManufactureDate), 0 }, | |
| }; | |
| SMBIOS_FILTER_TABLE mSmbiosFilterType23BlackList[] = { | |
| { 0x17, OFFSET_OF (SMBIOS_TABLE_TYPE23, ResetCount), FIELD_SIZE_OF (SMBIOS_TABLE_TYPE23, ResetCount), 0 }, | |
| }; | |
| SMBIOS_FILTER_TABLE mSmbiosFilterType27BlackList[] = { | |
| { 0x1B, OFFSET_OF (SMBIOS_TABLE_TYPE27, NominalSpeed), FIELD_SIZE_OF (SMBIOS_TABLE_TYPE27, NominalSpeed), 0 }, | |
| }; | |
| SMBIOS_FILTER_TABLE mSmbiosFilterType39BlackList[] = { | |
| { 0x27, OFFSET_OF (SMBIOS_TABLE_TYPE39, SerialNumber), FIELD_SIZE_OF (SMBIOS_TABLE_TYPE39, SerialNumber), SMBIOS_FILTER_TABLE_FLAG_IS_STRING }, | |
| { 0x27, OFFSET_OF (SMBIOS_TABLE_TYPE39, AssetTagNumber), FIELD_SIZE_OF (SMBIOS_TABLE_TYPE39, AssetTagNumber), SMBIOS_FILTER_TABLE_FLAG_IS_STRING }, | |
| { 0x27, OFFSET_OF (SMBIOS_TABLE_TYPE39, ModelPartNumber), FIELD_SIZE_OF (SMBIOS_TABLE_TYPE39, ModelPartNumber), SMBIOS_FILTER_TABLE_FLAG_IS_STRING }, | |
| }; | |
| SMBIOS_FILTER_STRUCT mSmbiosFilterStandardTableBlackList[] = { | |
| { 0x01, mSmbiosFilterType1BlackList, sizeof (mSmbiosFilterType1BlackList)/sizeof (mSmbiosFilterType1BlackList[0]) }, | |
| { 0x02, mSmbiosFilterType2BlackList, sizeof (mSmbiosFilterType2BlackList)/sizeof (mSmbiosFilterType2BlackList[0]) }, | |
| { 0x03, mSmbiosFilterType3BlackList, sizeof (mSmbiosFilterType3BlackList)/sizeof (mSmbiosFilterType3BlackList[0]) }, | |
| { 0x04, mSmbiosFilterType4BlackList, sizeof (mSmbiosFilterType4BlackList)/sizeof (mSmbiosFilterType4BlackList[0]) }, | |
| { 0x0B, NULL, 0 }, | |
| { 0x0F, NULL, 0 }, | |
| { 0x11, mSmbiosFilterType17BlackList, sizeof (mSmbiosFilterType17BlackList)/sizeof (mSmbiosFilterType17BlackList[0]) }, | |
| { 0x12, NULL, 0 }, | |
| { 0x16, mSmbiosFilterType22BlackList, sizeof (mSmbiosFilterType22BlackList)/sizeof (mSmbiosFilterType22BlackList[0]) }, | |
| { 0x17, mSmbiosFilterType23BlackList, sizeof (mSmbiosFilterType23BlackList)/sizeof (mSmbiosFilterType23BlackList[0]) }, | |
| { 0x1B, mSmbiosFilterType27BlackList, sizeof (mSmbiosFilterType27BlackList)/sizeof (mSmbiosFilterType27BlackList[0]) }, | |
| { 0x1F, NULL, 0 }, | |
| { 0x21, NULL, 0 }, | |
| { 0x27, mSmbiosFilterType39BlackList, sizeof (mSmbiosFilterType39BlackList)/sizeof (mSmbiosFilterType39BlackList[0]) }, | |
| }; | |
| EFI_SMBIOS_PROTOCOL *mSmbios; | |
| UINTN mMaxLen; | |
| #pragma pack (1) | |
| #define SMBIOS_HANDOFF_TABLE_DESC "SmbiosTable" | |
| typedef struct { | |
| UINT8 TableDescriptionSize; | |
| UINT8 TableDescription[sizeof (SMBIOS_HANDOFF_TABLE_DESC)]; | |
| UINT64 NumberOfTables; | |
| EFI_CONFIGURATION_TABLE TableEntry[1]; | |
| } SMBIOS_HANDOFF_TABLE_POINTERS2; | |
| #pragma pack () | |
| /** | |
| This function dump raw data. | |
| @param Data raw data | |
| @param Size raw data size | |
| **/ | |
| VOID | |
| InternalDumpData ( | |
| IN UINT8 *Data, | |
| IN UINTN Size | |
| ) | |
| { | |
| UINTN Index; | |
| for (Index = 0; Index < Size; Index++) { | |
| DEBUG ((DEBUG_VERBOSE, "%02x", (UINTN)Data[Index])); | |
| } | |
| } | |
| /** | |
| This function dump raw data with colume format. | |
| @param Data raw data | |
| @param Size raw data size | |
| **/ | |
| VOID | |
| InternalDumpHex ( | |
| IN UINT8 *Data, | |
| IN UINTN Size | |
| ) | |
| { | |
| UINTN Index; | |
| UINTN Count; | |
| UINTN Left; | |
| #define COLUME_SIZE (16 * 2) | |
| Count = Size / COLUME_SIZE; | |
| Left = Size % COLUME_SIZE; | |
| for (Index = 0; Index < Count; Index++) { | |
| DEBUG ((DEBUG_VERBOSE, "%04x: ", Index * COLUME_SIZE)); | |
| InternalDumpData (Data + Index * COLUME_SIZE, COLUME_SIZE); | |
| DEBUG ((DEBUG_VERBOSE, "\n")); | |
| } | |
| if (Left != 0) { | |
| DEBUG ((DEBUG_VERBOSE, "%04x: ", Index * COLUME_SIZE)); | |
| InternalDumpData (Data + Index * COLUME_SIZE, Left); | |
| DEBUG ((DEBUG_VERBOSE, "\n")); | |
| } | |
| } | |
| /** | |
| This function get filter structure by SMBIOS type. | |
| @param Type SMBIOS type | |
| **/ | |
| SMBIOS_FILTER_STRUCT * | |
| GetFilterStructByType ( | |
| IN UINT8 Type | |
| ) | |
| { | |
| UINTN Index; | |
| for (Index = 0; Index < sizeof (mSmbiosFilterStandardTableBlackList)/sizeof (mSmbiosFilterStandardTableBlackList[0]); Index++) { | |
| if (mSmbiosFilterStandardTableBlackList[Index].Type == Type) { | |
| return &mSmbiosFilterStandardTableBlackList[Index]; | |
| } | |
| } | |
| return NULL; | |
| } | |
| /** | |
| This function get SMBIOS string in SMBIOS table. | |
| @param Head SMBIOS table head | |
| @param StringId SMBIOS string ID | |
| @param StringLen length of SMBIOS string | |
| @return SMBIOS string data | |
| **/ | |
| CHAR8 * | |
| GetSmbiosStringById ( | |
| IN EFI_SMBIOS_TABLE_HEADER *Head, | |
| IN SMBIOS_TABLE_STRING StringId, | |
| OUT UINTN *StringLen | |
| ) | |
| { | |
| UINTN Size; | |
| UINTN StrLen; | |
| CHAR8 *CharInStr; | |
| UINTN StringsNumber; | |
| CHAR8 *String; | |
| CharInStr = (CHAR8 *)Head + Head->Length; | |
| Size = Head->Length; | |
| StringsNumber = 0; | |
| StrLen = 0; | |
| // | |
| // look for the two consecutive zeros, check the string limit by the way. | |
| // | |
| String = NULL; | |
| while (*CharInStr != 0 || *(CharInStr+1) != 0) { | |
| if (*CharInStr == 0) { | |
| Size += 1; | |
| CharInStr++; | |
| } | |
| String = CharInStr; | |
| for (StrLen = 0; StrLen < mMaxLen; StrLen++) { | |
| if (*(CharInStr+StrLen) == 0) { | |
| break; | |
| } | |
| } | |
| *StringLen = StrLen; | |
| if (StrLen == mMaxLen) { | |
| return NULL; | |
| } | |
| // | |
| // forward the pointer | |
| // | |
| CharInStr += StrLen; | |
| Size += StrLen; | |
| StringsNumber += 1; | |
| if (StringsNumber == StringId) { | |
| break; | |
| } | |
| } | |
| return String; | |
| } | |
| /** | |
| This function update SMBIOS table based on policy. | |
| @param TableEntry SMBIOS table | |
| @param TableEntrySize SMBIOS table size | |
| **/ | |
| VOID | |
| FilterSmbiosEntry ( | |
| IN OUT VOID *TableEntry, | |
| IN UINTN TableEntrySize | |
| ) | |
| { | |
| SMBIOS_FILTER_STRUCT *FilterStruct; | |
| SMBIOS_FILTER_TABLE *Filter; | |
| UINTN Index; | |
| SMBIOS_TABLE_STRING StringId; | |
| CHAR8 *String; | |
| UINTN StringLen; | |
| DEBUG ((DEBUG_INFO, "Smbios Table (Type - %d):\n", ((SMBIOS_STRUCTURE *)TableEntry)->Type)); | |
| DEBUG_CODE ( | |
| InternalDumpHex (TableEntry, TableEntrySize); | |
| ); | |
| // | |
| // Skip measurement for OEM types. | |
| // | |
| if (((SMBIOS_STRUCTURE *)TableEntry)->Type >= SMBIOS_OEM_BEGIN) { | |
| // zero all table fields, except header | |
| ZeroMem ((UINT8 *)TableEntry + sizeof (SMBIOS_STRUCTURE), TableEntrySize - sizeof (SMBIOS_STRUCTURE)); | |
| } else { | |
| FilterStruct = GetFilterStructByType (((SMBIOS_STRUCTURE *)TableEntry)->Type); | |
| if (FilterStruct != NULL) { | |
| if ((FilterStruct->Filter == NULL) || (FilterStruct->FilterCount == 0)) { | |
| // zero all table fields, except header | |
| ZeroMem ((UINT8 *)TableEntry + sizeof (SMBIOS_STRUCTURE), TableEntrySize - sizeof (SMBIOS_STRUCTURE)); | |
| } else { | |
| Filter = FilterStruct->Filter; | |
| for (Index = 0; Index < FilterStruct->FilterCount; Index++) { | |
| if (((SMBIOS_STRUCTURE *)TableEntry)->Length >= (Filter[Index].Offset + Filter[Index].Size)) { | |
| // | |
| // The field is present in the SMBIOS entry. | |
| // | |
| if ((Filter[Index].Flags & SMBIOS_FILTER_TABLE_FLAG_IS_STRING) != 0) { | |
| CopyMem (&StringId, (UINT8 *)TableEntry + Filter[Index].Offset, sizeof (StringId)); | |
| if (StringId != 0) { | |
| // set ' ' for string field | |
| String = GetSmbiosStringById (TableEntry, StringId, &StringLen); | |
| ASSERT (String != NULL); | |
| // DEBUG ((DEBUG_INFO,"StrId(0x%x)-%a(%d)\n", StringId, String, StringLen)); | |
| SetMem (String, StringLen, ' '); | |
| } | |
| } | |
| // zero non-string field | |
| ZeroMem ((UINT8 *)TableEntry + Filter[Index].Offset, Filter[Index].Size); | |
| } | |
| } | |
| } | |
| } | |
| } | |
| DEBUG ((DEBUG_INFO, "Filter Smbios Table (Type - %d):\n", ((SMBIOS_STRUCTURE *)TableEntry)->Type)); | |
| DEBUG_CODE ( | |
| InternalDumpHex (TableEntry, TableEntrySize); | |
| ); | |
| } | |
| /** | |
| Get the full size of SMBIOS structure including optional strings that follow the formatted structure. | |
| @param Head Pointer to the beginning of SMBIOS structure. | |
| @param NumberOfStrings The returned number of optional strings that follow the formatted structure. | |
| @return Size The returned size. | |
| **/ | |
| UINTN | |
| GetSmbiosStructureSize ( | |
| IN EFI_SMBIOS_TABLE_HEADER *Head, | |
| OUT UINTN *NumberOfStrings | |
| ) | |
| { | |
| UINTN Size; | |
| UINTN StrLen; | |
| CHAR8 *CharInStr; | |
| UINTN StringsNumber; | |
| CharInStr = (CHAR8 *)Head + Head->Length; | |
| Size = Head->Length; | |
| StringsNumber = 0; | |
| StrLen = 0; | |
| // | |
| // look for the two consecutive zeros, check the string limit by the way. | |
| // | |
| while (*CharInStr != 0 || *(CharInStr+1) != 0) { | |
| if (*CharInStr == 0) { | |
| Size += 1; | |
| CharInStr++; | |
| } | |
| for (StrLen = 0; StrLen < mMaxLen; StrLen++) { | |
| if (*(CharInStr+StrLen) == 0) { | |
| break; | |
| } | |
| } | |
| if (StrLen == mMaxLen) { | |
| return 0; | |
| } | |
| // | |
| // forward the pointer | |
| // | |
| CharInStr += StrLen; | |
| Size += StrLen; | |
| StringsNumber += 1; | |
| } | |
| // | |
| // count ending two zeros. | |
| // | |
| Size += 2; | |
| if (NumberOfStrings != NULL) { | |
| *NumberOfStrings = StringsNumber; | |
| } | |
| return Size; | |
| } | |
| /** | |
| This function returns full SMBIOS table length. | |
| @param TableAddress SMBIOS table based address | |
| @param TableMaximumSize Maximum size of SMBIOS table | |
| @return SMBIOS table length | |
| **/ | |
| UINTN | |
| GetSmbiosTableLength ( | |
| IN VOID *TableAddress, | |
| IN UINTN TableMaximumSize | |
| ) | |
| { | |
| VOID *TableEntry; | |
| VOID *TableAddressEnd; | |
| UINTN TableEntryLength; | |
| TableAddressEnd = (VOID *)((UINTN)TableAddress + TableMaximumSize); | |
| TableEntry = TableAddress; | |
| while (TableEntry < TableAddressEnd) { | |
| TableEntryLength = GetSmbiosStructureSize (TableEntry, NULL); | |
| if (TableEntryLength == 0) { | |
| break; | |
| } | |
| if (((SMBIOS_STRUCTURE *)TableEntry)->Type == 127) { | |
| TableEntry = (VOID *)((UINTN)TableEntry + TableEntryLength); | |
| break; | |
| } | |
| TableEntry = (VOID *)((UINTN)TableEntry + TableEntryLength); | |
| } | |
| return ((UINTN)TableEntry - (UINTN)TableAddress); | |
| } | |
| /** | |
| This function updatess full SMBIOS table length. | |
| @param TableAddress SMBIOS table based address | |
| @param TableLength SMBIOS table length | |
| **/ | |
| VOID | |
| FilterSmbiosTable ( | |
| IN OUT VOID *TableAddress, | |
| IN UINTN TableLength | |
| ) | |
| { | |
| VOID *TableAddressEnd; | |
| VOID *TableEntry; | |
| UINTN TableEntryLength; | |
| TableEntry = TableAddress; | |
| TableAddressEnd = (VOID *)((UINTN)TableAddress + TableLength); | |
| while ((UINTN)TableEntry < (UINTN)TableAddressEnd) { | |
| TableEntryLength = GetSmbiosStructureSize (TableEntry, NULL); | |
| if (TableEntryLength == 0) { | |
| break; | |
| } | |
| FilterSmbiosEntry (TableEntry, TableEntryLength); | |
| TableEntry = (VOID *)((UINTN)TableEntry + TableEntryLength); | |
| } | |
| } | |
| /** | |
| Measure SMBIOS with EV_EFI_HANDOFF_TABLES to PCR[1]. | |
| @param[in] Event Event whose notification function is being invoked. | |
| @param[in] Context Pointer to the notification function's context. | |
| **/ | |
| VOID | |
| EFIAPI | |
| MeasureSmbiosTable ( | |
| IN EFI_EVENT Event, | |
| IN VOID *Context | |
| ) | |
| { | |
| EFI_STATUS Status; | |
| EFI_HANDOFF_TABLE_POINTERS HandoffTables; | |
| SMBIOS_HANDOFF_TABLE_POINTERS2 SmbiosHandoffTables2; | |
| UINT32 EventType; | |
| VOID *EventLog; | |
| UINT32 EventLogSize; | |
| SMBIOS_TABLE_ENTRY_POINT *SmbiosTable; | |
| SMBIOS_TABLE_3_0_ENTRY_POINT *Smbios3Table; | |
| VOID *SmbiosTableAddress; | |
| VOID *TableAddress; | |
| UINTN TableLength; | |
| SmbiosTable = NULL; | |
| Smbios3Table = NULL; | |
| SmbiosTableAddress = NULL; | |
| TableLength = 0; | |
| if (mSmbios->MajorVersion >= 3) { | |
| Status = EfiGetSystemConfigurationTable ( | |
| &gEfiSmbios3TableGuid, | |
| (VOID **)&Smbios3Table | |
| ); | |
| if (!EFI_ERROR (Status)) { | |
| DEBUG ((DEBUG_INFO, "Smbios3Table:\n")); | |
| DEBUG (( | |
| DEBUG_INFO, | |
| " AnchorString - '%c%c%c%c%c'\n", | |
| Smbios3Table->AnchorString[0], | |
| Smbios3Table->AnchorString[1], | |
| Smbios3Table->AnchorString[2], | |
| Smbios3Table->AnchorString[3], | |
| Smbios3Table->AnchorString[4] | |
| )); | |
| DEBUG ((DEBUG_INFO, " EntryPointStructureChecksum - 0x%02x\n", Smbios3Table->EntryPointStructureChecksum)); | |
| DEBUG ((DEBUG_INFO, " EntryPointLength - 0x%02x\n", Smbios3Table->EntryPointLength)); | |
| DEBUG ((DEBUG_INFO, " MajorVersion - 0x%02x\n", Smbios3Table->MajorVersion)); | |
| DEBUG ((DEBUG_INFO, " MinorVersion - 0x%02x\n", Smbios3Table->MinorVersion)); | |
| DEBUG ((DEBUG_INFO, " DocRev - 0x%02x\n", Smbios3Table->DocRev)); | |
| DEBUG ((DEBUG_INFO, " EntryPointRevision - 0x%02x\n", Smbios3Table->EntryPointRevision)); | |
| DEBUG ((DEBUG_INFO, " TableMaximumSize - 0x%08x\n", Smbios3Table->TableMaximumSize)); | |
| DEBUG ((DEBUG_INFO, " TableAddress - 0x%016lx\n", Smbios3Table->TableAddress)); | |
| } | |
| } | |
| if (Smbios3Table == NULL) { | |
| Status = EfiGetSystemConfigurationTable ( | |
| &gEfiSmbiosTableGuid, | |
| (VOID **)&SmbiosTable | |
| ); | |
| if (!EFI_ERROR (Status)) { | |
| DEBUG ((DEBUG_INFO, "SmbiosTable:\n")); | |
| DEBUG (( | |
| DEBUG_INFO, | |
| " AnchorString - '%c%c%c%c'\n", | |
| SmbiosTable->AnchorString[0], | |
| SmbiosTable->AnchorString[1], | |
| SmbiosTable->AnchorString[2], | |
| SmbiosTable->AnchorString[3] | |
| )); | |
| DEBUG ((DEBUG_INFO, " EntryPointStructureChecksum - 0x%02x\n", SmbiosTable->EntryPointStructureChecksum)); | |
| DEBUG ((DEBUG_INFO, " EntryPointLength - 0x%02x\n", SmbiosTable->EntryPointLength)); | |
| DEBUG ((DEBUG_INFO, " MajorVersion - 0x%02x\n", SmbiosTable->MajorVersion)); | |
| DEBUG ((DEBUG_INFO, " MinorVersion - 0x%02x\n", SmbiosTable->MinorVersion)); | |
| DEBUG ((DEBUG_INFO, " MaxStructureSize - 0x%08x\n", SmbiosTable->MaxStructureSize)); | |
| DEBUG ((DEBUG_INFO, " EntryPointRevision - 0x%02x\n", SmbiosTable->EntryPointRevision)); | |
| DEBUG (( | |
| DEBUG_INFO, | |
| " FormattedArea - '%c%c%c%c%c'\n", | |
| SmbiosTable->FormattedArea[0], | |
| SmbiosTable->FormattedArea[1], | |
| SmbiosTable->FormattedArea[2], | |
| SmbiosTable->FormattedArea[3], | |
| SmbiosTable->FormattedArea[4] | |
| )); | |
| DEBUG (( | |
| DEBUG_INFO, | |
| " IntermediateAnchorString - '%c%c%c%c%c'\n", | |
| SmbiosTable->IntermediateAnchorString[0], | |
| SmbiosTable->IntermediateAnchorString[1], | |
| SmbiosTable->IntermediateAnchorString[2], | |
| SmbiosTable->IntermediateAnchorString[3], | |
| SmbiosTable->IntermediateAnchorString[4] | |
| )); | |
| DEBUG ((DEBUG_INFO, " IntermediateChecksum - 0x%02x\n", SmbiosTable->IntermediateChecksum)); | |
| DEBUG ((DEBUG_INFO, " TableLength - 0x%04x\n", SmbiosTable->TableLength)); | |
| DEBUG ((DEBUG_INFO, " TableAddress - 0x%08x\n", SmbiosTable->TableAddress)); | |
| DEBUG ((DEBUG_INFO, " NumberOfSmbiosStructures - 0x%04x\n", SmbiosTable->NumberOfSmbiosStructures)); | |
| DEBUG ((DEBUG_INFO, " SmbiosBcdRevision - 0x%02x\n", SmbiosTable->SmbiosBcdRevision)); | |
| } | |
| } | |
| if (Smbios3Table != NULL) { | |
| SmbiosTableAddress = (VOID *)(UINTN)Smbios3Table->TableAddress; | |
| TableLength = GetSmbiosTableLength (SmbiosTableAddress, Smbios3Table->TableMaximumSize); | |
| } else if (SmbiosTable != NULL) { | |
| SmbiosTableAddress = (VOID *)(UINTN)SmbiosTable->TableAddress; | |
| TableLength = SmbiosTable->TableLength; | |
| } | |
| if (SmbiosTableAddress != NULL) { | |
| DEBUG ((DEBUG_INFO, "The Smbios Table starts at: 0x%x\n", SmbiosTableAddress)); | |
| DEBUG ((DEBUG_INFO, "The Smbios Table size: 0x%x\n", TableLength)); | |
| DEBUG_CODE ( | |
| InternalDumpHex ((UINT8 *)(UINTN)SmbiosTableAddress, TableLength); | |
| ); | |
| TableAddress = AllocateCopyPool ((UINTN)TableLength, (VOID *)(UINTN)SmbiosTableAddress); | |
| if (TableAddress == NULL) { | |
| return; | |
| } | |
| FilterSmbiosTable (TableAddress, TableLength); | |
| DEBUG ((DEBUG_INFO, "The final Smbios Table starts at: 0x%x\n", TableAddress)); | |
| DEBUG ((DEBUG_INFO, "The final Smbios Table size: 0x%x\n", TableLength)); | |
| DEBUG_CODE ( | |
| InternalDumpHex (TableAddress, TableLength); | |
| ); | |
| HandoffTables.NumberOfTables = 1; | |
| if (Smbios3Table != NULL) { | |
| CopyGuid (&(HandoffTables.TableEntry[0].VendorGuid), &gEfiSmbios3TableGuid); | |
| HandoffTables.TableEntry[0].VendorTable = Smbios3Table; | |
| } else { | |
| CopyGuid (&(HandoffTables.TableEntry[0].VendorGuid), &gEfiSmbiosTableGuid); | |
| HandoffTables.TableEntry[0].VendorTable = SmbiosTable; | |
| } | |
| EventType = EV_EFI_HANDOFF_TABLES; | |
| EventLog = &HandoffTables; | |
| EventLogSize = sizeof (HandoffTables); | |
| if (PcdGet32 (PcdTcgPfpMeasurementRevision) >= TCG_EfiSpecIDEventStruct_SPEC_ERRATA_TPM2_REV_105) { | |
| SmbiosHandoffTables2.TableDescriptionSize = sizeof (SmbiosHandoffTables2.TableDescription); | |
| CopyMem (SmbiosHandoffTables2.TableDescription, SMBIOS_HANDOFF_TABLE_DESC, sizeof (SmbiosHandoffTables2.TableDescription)); | |
| SmbiosHandoffTables2.NumberOfTables = HandoffTables.NumberOfTables; | |
| CopyMem (&(SmbiosHandoffTables2.TableEntry[0]), &(HandoffTables.TableEntry[0]), sizeof (SmbiosHandoffTables2.TableEntry[0])); | |
| EventType = EV_EFI_HANDOFF_TABLES2; | |
| EventLog = &SmbiosHandoffTables2; | |
| EventLogSize = sizeof (SmbiosHandoffTables2); | |
| } | |
| Status = TpmMeasureAndLogData ( | |
| 1, // PCRIndex | |
| EventType, // EventType | |
| EventLog, // EventLog | |
| EventLogSize, // LogLen | |
| TableAddress, // HashData | |
| TableLength // HashDataLen | |
| ); | |
| if (!EFI_ERROR (Status)) { | |
| gBS->CloseEvent (Event); | |
| } | |
| } | |
| return; | |
| } | |
| /** | |
| Driver to produce Smbios measurement. | |
| @param ImageHandle Module's image handle | |
| @param SystemTable Pointer of EFI_SYSTEM_TABLE | |
| @return Status returned from EfiCreateEventReadyToBootEx(). | |
| **/ | |
| EFI_STATUS | |
| EFIAPI | |
| SmbiosMeasurementDriverEntryPoint ( | |
| IN EFI_HANDLE ImageHandle, | |
| IN EFI_SYSTEM_TABLE *SystemTable | |
| ) | |
| { | |
| EFI_STATUS Status; | |
| EFI_EVENT Event; | |
| Status = gBS->LocateProtocol (&gEfiSmbiosProtocolGuid, NULL, (VOID **)&mSmbios); | |
| ASSERT_EFI_ERROR (Status); | |
| DEBUG ((DEBUG_INFO, "The Smbios Table Version: %x.%x\n", mSmbios->MajorVersion, mSmbios->MinorVersion)); | |
| if ((mSmbios->MajorVersion < 2) || ((mSmbios->MajorVersion == 2) && (mSmbios->MinorVersion < 7))) { | |
| mMaxLen = SMBIOS_STRING_MAX_LENGTH; | |
| } else if (mSmbios->MajorVersion < 3) { | |
| // | |
| // Reference SMBIOS 2.7, chapter 6.1.3, it will have no limit on the length of each individual text string. | |
| // However, the length of the entire structure table (including all strings) must be reported | |
| // in the Structure Table Length field of the SMBIOS Structure Table Entry Point, | |
| // which is a WORD field limited to 65,535 bytes. | |
| // | |
| mMaxLen = SMBIOS_TABLE_MAX_LENGTH; | |
| } else { | |
| // | |
| // SMBIOS 3.0 defines the Structure table maximum size as DWORD field limited to 0xFFFFFFFF bytes. | |
| // Locate the end of string as long as possible. | |
| // | |
| mMaxLen = SMBIOS_3_0_TABLE_MAX_LENGTH; | |
| } | |
| // | |
| // Measure Smbios tables | |
| // | |
| Status = EfiCreateEventReadyToBootEx ( | |
| TPL_CALLBACK, | |
| MeasureSmbiosTable, | |
| NULL, | |
| &Event | |
| ); | |
| return Status; | |
| } |