#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>

Data Structures
struct	SMBIOS_FILTER_TABLE

struct	SMBIOS_FILTER_STRUCT

struct	SMBIOS_HANDOFF_TABLE_POINTERS2

Macros
#define	FIELD_SIZE_OF(TYPE, Field) ((UINTN)sizeof(((TYPE *)0)->Field))

#define	SMBIOS_FILTER_TABLE_FLAG_IS_STRING BIT0

#define	SMBIOS_HANDOFF_TABLE_DESC "SmbiosTable"

#define	COLUME_SIZE (16 * 2)

Functions
VOID	InternalDumpData (IN UINT8 *Data, IN UINTN Size)

VOID	InternalDumpHex (IN UINT8 *Data, IN UINTN Size)

SMBIOS_FILTER_STRUCT *	GetFilterStructByType (IN UINT8 Type)

CHAR8 *	GetSmbiosStringById (IN EFI_SMBIOS_TABLE_HEADER Head, IN SMBIOS_TABLE_STRING StringId, OUT UINTN StringLen)

VOID	FilterSmbiosEntry (IN OUT VOID *TableEntry, IN UINTN TableEntrySize)

UINTN	GetSmbiosStructureSize (IN EFI_SMBIOS_TABLE_HEADER Head, OUT UINTN NumberOfStrings)

UINTN	GetSmbiosTableLength (IN VOID *TableAddress, IN UINTN TableMaximumSize)

VOID	FilterSmbiosTable (IN OUT VOID *TableAddress, IN UINTN TableLength)

VOID EFIAPI	MeasureSmbiosTable (IN EFI_EVENT Event, IN VOID *Context)

EFI_STATUS EFIAPI	SmbiosMeasurementDriverEntryPoint (IN EFI_HANDLE ImageHandle, IN EFI_SYSTEM_TABLE *SystemTable)

Detailed Description

This driver measures SMBIOS table to TPM.

Copyright (c) 2015 - 2022, Intel Corporation. All rights reserved.
SPDX-License-Identifier: BSD-2-Clause-Patent

Definition in file SmbiosMeasurementDxe.c.

Macro Definition Documentation

◆ FIELD_SIZE_OF

#define FIELD_SIZE_OF	(	TYPE,
		Field
	)	((UINTN)sizeof(((TYPE *)0)->Field))

Definition at line 26 of file SmbiosMeasurementDxe.c.

◆ SMBIOS_FILTER_TABLE_FLAG_IS_STRING

#define SMBIOS_FILTER_TABLE_FLAG_IS_STRING BIT0

Definition at line 34 of file SmbiosMeasurementDxe.c.

◆ SMBIOS_HANDOFF_TABLE_DESC

#define SMBIOS_HANDOFF_TABLE_DESC "SmbiosTable"

Definition at line 115 of file SmbiosMeasurementDxe.c.

Function Documentation

◆ FilterSmbiosEntry()

VOID FilterSmbiosEntry	(	IN OUT VOID *	TableEntry,
		IN UINTN	TableEntrySize
	)

This function update SMBIOS table based on policy.

Parameters

TableEntry	SMBIOS table
TableEntrySize	SMBIOS table size

Definition at line 278 of file SmbiosMeasurementDxe.c.

◆ FilterSmbiosTable()

VOID FilterSmbiosTable	(	IN OUT VOID *	TableAddress,
		IN UINTN	TableLength
	)

This function updatess full SMBIOS table length.

Parameters

TableAddress	SMBIOS table based address
TableLength	SMBIOS table length

Definition at line 450 of file SmbiosMeasurementDxe.c.

◆ GetFilterStructByType()

SMBIOS_FILTER_STRUCT * GetFilterStructByType ( IN UINT8 Type )

This function get filter structure by SMBIOS type.

Parameters

Type	SMBIOS type

Definition at line 189 of file SmbiosMeasurementDxe.c.

◆ GetSmbiosStringById()

CHAR8 * GetSmbiosStringById	(	IN EFI_SMBIOS_TABLE_HEADER *	Head,
		IN SMBIOS_TABLE_STRING	StringId,
		OUT UINTN *	StringLen
	)

This function get SMBIOS string in SMBIOS table.

Parameters

Head	SMBIOS table head
StringId	SMBIOS string ID
StringLen	length of SMBIOS string

Returns: SMBIOS string data

Definition at line 215 of file SmbiosMeasurementDxe.c.

◆ GetSmbiosStructureSize()

UINTN GetSmbiosStructureSize	(	IN EFI_SMBIOS_TABLE_HEADER *	Head,
		OUT UINTN *	NumberOfStrings
	)

Get the full size of SMBIOS structure including optional strings that follow the formatted structure.

Parameters

Head	Pointer to the beginning of SMBIOS structure.
NumberOfStrings	The returned number of optional strings that follow the formatted structure.

Returns: Size The returned size.

Definition at line 349 of file SmbiosMeasurementDxe.c.

◆ GetSmbiosTableLength()

UINTN GetSmbiosTableLength	(	IN VOID *	TableAddress,
		IN UINTN	TableMaximumSize
	)

This function returns full SMBIOS table length.

Parameters

TableAddress	SMBIOS table based address
TableMaximumSize	Maximum size of SMBIOS table

Returns: SMBIOS table length

Definition at line 413 of file SmbiosMeasurementDxe.c.

◆ InternalDumpData()

VOID InternalDumpData	(	IN UINT8 *	Data,
		IN UINTN	Size
	)

This function dump raw data.

Parameters

Data	raw data
Size	raw data size

Definition at line 134 of file SmbiosMeasurementDxe.c.

◆ InternalDumpHex()

VOID InternalDumpHex	(	IN UINT8 *	Data,
		IN UINTN	Size
	)

This function dump raw data with colume format.

Parameters

Data	raw data
Size	raw data size

Definition at line 155 of file SmbiosMeasurementDxe.c.

◆ MeasureSmbiosTable()

VOID EFIAPI MeasureSmbiosTable	(	IN EFI_EVENT	Event,
		IN VOID *	Context
	)

Measure SMBIOS with EV_EFI_HANDOFF_TABLES to PCR[1].

Parameters

[in]	Event	Event whose notification function is being invoked.
[in]	Context	Pointer to the notification function's context.

Definition at line 482 of file SmbiosMeasurementDxe.c.

◆ SmbiosMeasurementDriverEntryPoint()

EFI_STATUS EFIAPI SmbiosMeasurementDriverEntryPoint	(	IN EFI_HANDLE	ImageHandle,
		IN EFI_SYSTEM_TABLE *	SystemTable
	)

Driver to produce Smbios measurement.

Parameters

ImageHandle	Module's image handle
SystemTable	Pointer of EFI_SYSTEM_TABLE

Returns: Status returned from EfiCreateEventReadyToBootEx().

Definition at line 657 of file SmbiosMeasurementDxe.c.

Variable Documentation

◆ mMaxLen

UINTN mMaxLen

Definition at line 111 of file SmbiosMeasurementDxe.c.

◆ mSmbios

EFI_SMBIOS_PROTOCOL* mSmbios

Definition at line 110 of file SmbiosMeasurementDxe.c.

◆ mSmbiosFilterStandardTableBlackList

SMBIOS_FILTER_STRUCT mSmbiosFilterStandardTableBlackList[]

Initial value:

= {
  { 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]) },
}

Definition at line 93 of file SmbiosMeasurementDxe.c.

◆ mSmbiosFilterType17BlackList

SMBIOS_FILTER_TABLE mSmbiosFilterType17BlackList[]

Initial value:

= {
  { 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 },
}

Definition at line 71 of file SmbiosMeasurementDxe.c.

◆ mSmbiosFilterType1BlackList

SMBIOS_FILTER_TABLE mSmbiosFilterType1BlackList[]

Initial value:

= {
  { 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                                  },
}

Definition at line 45 of file SmbiosMeasurementDxe.c.

◆ mSmbiosFilterType22BlackList

SMBIOS_FILTER_TABLE mSmbiosFilterType22BlackList[]

Initial value:

= {
  { 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                                  },
}

Definition at line 76 of file SmbiosMeasurementDxe.c.

◆ mSmbiosFilterType23BlackList

SMBIOS_FILTER_TABLE mSmbiosFilterType23BlackList[]

Initial value:

= {
  { 0x17, OFFSET_OF (SMBIOS_TABLE_TYPE23, ResetCount), FIELD_SIZE_OF (SMBIOS_TABLE_TYPE23, ResetCount), 0 },
}

Definition at line 81 of file SmbiosMeasurementDxe.c.

◆ mSmbiosFilterType27BlackList

SMBIOS_FILTER_TABLE mSmbiosFilterType27BlackList[]

Initial value:

= {
  { 0x1B, OFFSET_OF (SMBIOS_TABLE_TYPE27, NominalSpeed), FIELD_SIZE_OF (SMBIOS_TABLE_TYPE27, NominalSpeed), 0 },
}

Definition at line 84 of file SmbiosMeasurementDxe.c.

◆ mSmbiosFilterType2BlackList

SMBIOS_FILTER_TABLE mSmbiosFilterType2BlackList[]

Initial value:

= {
  { 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 },
}

Definition at line 50 of file SmbiosMeasurementDxe.c.

◆ mSmbiosFilterType39BlackList

SMBIOS_FILTER_TABLE mSmbiosFilterType39BlackList[]

Initial value:

= {
  { 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 },
}

Definition at line 87 of file SmbiosMeasurementDxe.c.

◆ mSmbiosFilterType3BlackList

SMBIOS_FILTER_TABLE mSmbiosFilterType3BlackList[]

Initial value:

= {
  { 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 },
}

Definition at line 54 of file SmbiosMeasurementDxe.c.

◆ mSmbiosFilterType4BlackList

SMBIOS_FILTER_TABLE mSmbiosFilterType4BlackList[]

Initial value:

= {
  { 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                                  },
}

Definition at line 58 of file SmbiosMeasurementDxe.c.

Variables
SMBIOS_FILTER_TABLE	mSmbiosFilterType1BlackList []

SMBIOS_FILTER_TABLE	mSmbiosFilterType2BlackList []

SMBIOS_FILTER_TABLE	mSmbiosFilterType3BlackList []

SMBIOS_FILTER_TABLE	mSmbiosFilterType4BlackList []

SMBIOS_FILTER_TABLE	mSmbiosFilterType17BlackList []

SMBIOS_FILTER_TABLE	mSmbiosFilterType22BlackList []

SMBIOS_FILTER_TABLE	mSmbiosFilterType23BlackList []

SMBIOS_FILTER_TABLE	mSmbiosFilterType27BlackList []

SMBIOS_FILTER_TABLE	mSmbiosFilterType39BlackList []

SMBIOS_FILTER_STRUCT	mSmbiosFilterStandardTableBlackList []

EFI_SMBIOS_PROTOCOL *	mSmbios

UINTN	mMaxLen

Data Structures

Macros

Functions

Variables

Detailed Description

Macro Definition Documentation

◆ FIELD_SIZE_OF

◆ SMBIOS_FILTER_TABLE_FLAG_IS_STRING

◆ SMBIOS_HANDOFF_TABLE_DESC

Function Documentation

◆ FilterSmbiosEntry()

◆ FilterSmbiosTable()

◆ GetFilterStructByType()

◆ GetSmbiosStringById()

◆ GetSmbiosStructureSize()

◆ GetSmbiosTableLength()

◆ InternalDumpData()

◆ InternalDumpHex()

◆ MeasureSmbiosTable()

◆ SmbiosMeasurementDriverEntryPoint()

Variable Documentation

◆ mMaxLen

◆ mSmbios

◆ mSmbiosFilterStandardTableBlackList

◆ mSmbiosFilterType17BlackList

◆ mSmbiosFilterType1BlackList

◆ mSmbiosFilterType22BlackList

◆ mSmbiosFilterType23BlackList

◆ mSmbiosFilterType27BlackList

◆ mSmbiosFilterType2BlackList

◆ mSmbiosFilterType39BlackList

◆ mSmbiosFilterType3BlackList

◆ mSmbiosFilterType4BlackList