b8922094f6
Cc: Jiewen Yao <jiewen.yao@intel.com> Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Star Zeng <star.zeng@intel.com> Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>
639 lines
23 KiB
C
639 lines
23 KiB
C
/** @file
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This driver measures SMBIOS table to TPM.
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Copyright (c) 2015 - 2016, Intel Corporation. All rights reserved.<BR>
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This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#include <PiDxe.h>
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#include <Protocol/Smbios.h>
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#include <IndustryStandard/SmBios.h>
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#include <IndustryStandard/UefiTcgPlatform.h>
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#include <Guid/EventGroup.h>
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#include <Guid/SmBios.h>
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#include <Library/DebugLib.h>
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#include <Library/UefiDriverEntryPoint.h>
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#include <Library/UefiLib.h>
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#include <Library/BaseLib.h>
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#include <Library/BaseMemoryLib.h>
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#include <Library/MemoryAllocationLib.h>
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#include <Library/UefiBootServicesTableLib.h>
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#include <Library/TpmMeasurementLib.h>
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#define FIELD_SIZE_OF(TYPE, Field) ((UINTN)sizeof(((TYPE *)0)->Field))
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typedef struct {
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UINT8 Type;
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UINTN Offset;
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UINTN Size;
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UINT32 Flags;
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} SMBIOS_FILTER_TABLE;
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#define SMBIOS_FILTER_TABLE_FLAG_IS_STRING BIT0
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typedef struct {
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UINT8 Type;
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SMBIOS_FILTER_TABLE *Filter; // NULL means all fields
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UINTN FilterCount;
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} SMBIOS_FILTER_STRUCT;
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//
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// Platform Specific Policy
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//
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SMBIOS_FILTER_TABLE mSmbiosFilterType1BlackList[] = {
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{0x01, OFFSET_OF(SMBIOS_TABLE_TYPE1, SerialNumber), FIELD_SIZE_OF(SMBIOS_TABLE_TYPE1, SerialNumber), SMBIOS_FILTER_TABLE_FLAG_IS_STRING},
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{0x01, OFFSET_OF(SMBIOS_TABLE_TYPE1, Uuid), FIELD_SIZE_OF(SMBIOS_TABLE_TYPE1, Uuid), 0},
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{0x01, OFFSET_OF(SMBIOS_TABLE_TYPE1, WakeUpType), FIELD_SIZE_OF(SMBIOS_TABLE_TYPE1, WakeUpType), 0},
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};
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SMBIOS_FILTER_TABLE mSmbiosFilterType2BlackList[] = {
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{0x02, OFFSET_OF(SMBIOS_TABLE_TYPE2, SerialNumber), FIELD_SIZE_OF(SMBIOS_TABLE_TYPE2, SerialNumber), SMBIOS_FILTER_TABLE_FLAG_IS_STRING},
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{0x02, OFFSET_OF(SMBIOS_TABLE_TYPE2, LocationInChassis), FIELD_SIZE_OF(SMBIOS_TABLE_TYPE2, LocationInChassis), SMBIOS_FILTER_TABLE_FLAG_IS_STRING},
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};
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SMBIOS_FILTER_TABLE mSmbiosFilterType3BlackList[] = {
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{0x03, OFFSET_OF(SMBIOS_TABLE_TYPE3, SerialNumber), FIELD_SIZE_OF(SMBIOS_TABLE_TYPE3, SerialNumber), SMBIOS_FILTER_TABLE_FLAG_IS_STRING},
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{0x03, OFFSET_OF(SMBIOS_TABLE_TYPE3, AssetTag), FIELD_SIZE_OF(SMBIOS_TABLE_TYPE3, AssetTag), SMBIOS_FILTER_TABLE_FLAG_IS_STRING},
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};
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SMBIOS_FILTER_TABLE mSmbiosFilterType4BlackList[] = {
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{0x04, OFFSET_OF(SMBIOS_TABLE_TYPE4, SerialNumber), FIELD_SIZE_OF(SMBIOS_TABLE_TYPE4, SerialNumber), SMBIOS_FILTER_TABLE_FLAG_IS_STRING},
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{0x04, OFFSET_OF(SMBIOS_TABLE_TYPE4, AssetTag), FIELD_SIZE_OF(SMBIOS_TABLE_TYPE4, AssetTag), SMBIOS_FILTER_TABLE_FLAG_IS_STRING},
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{0x04, OFFSET_OF(SMBIOS_TABLE_TYPE4, PartNumber), FIELD_SIZE_OF(SMBIOS_TABLE_TYPE4, PartNumber), SMBIOS_FILTER_TABLE_FLAG_IS_STRING},
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{0x04, OFFSET_OF(SMBIOS_TABLE_TYPE4, CoreCount), FIELD_SIZE_OF(SMBIOS_TABLE_TYPE4, CoreCount), 0},
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{0x04, OFFSET_OF(SMBIOS_TABLE_TYPE4, EnabledCoreCount), FIELD_SIZE_OF(SMBIOS_TABLE_TYPE4, EnabledCoreCount), 0},
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{0x04, OFFSET_OF(SMBIOS_TABLE_TYPE4, ThreadCount), FIELD_SIZE_OF(SMBIOS_TABLE_TYPE4, ThreadCount), 0},
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{0x04, OFFSET_OF(SMBIOS_TABLE_TYPE4, CoreCount2), FIELD_SIZE_OF(SMBIOS_TABLE_TYPE4, CoreCount2), 0},
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{0x04, OFFSET_OF(SMBIOS_TABLE_TYPE4, EnabledCoreCount2), FIELD_SIZE_OF(SMBIOS_TABLE_TYPE4, EnabledCoreCount2), 0},
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{0x04, OFFSET_OF(SMBIOS_TABLE_TYPE4, ThreadCount2), FIELD_SIZE_OF(SMBIOS_TABLE_TYPE4, ThreadCount2), 0},
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};
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SMBIOS_FILTER_TABLE mSmbiosFilterType17BlackList[] = {
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{0x11, OFFSET_OF(SMBIOS_TABLE_TYPE17, SerialNumber), FIELD_SIZE_OF(SMBIOS_TABLE_TYPE17, SerialNumber), SMBIOS_FILTER_TABLE_FLAG_IS_STRING},
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{0x11, OFFSET_OF(SMBIOS_TABLE_TYPE17, AssetTag), FIELD_SIZE_OF(SMBIOS_TABLE_TYPE17, AssetTag), SMBIOS_FILTER_TABLE_FLAG_IS_STRING},
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{0x11, OFFSET_OF(SMBIOS_TABLE_TYPE17, PartNumber), FIELD_SIZE_OF(SMBIOS_TABLE_TYPE17, PartNumber), SMBIOS_FILTER_TABLE_FLAG_IS_STRING},
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};
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SMBIOS_FILTER_TABLE mSmbiosFilterType22BlackList[] = {
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{0x16, OFFSET_OF(SMBIOS_TABLE_TYPE22, SerialNumber), FIELD_SIZE_OF(SMBIOS_TABLE_TYPE22, SerialNumber), SMBIOS_FILTER_TABLE_FLAG_IS_STRING},
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{0x16, OFFSET_OF(SMBIOS_TABLE_TYPE22, SBDSSerialNumber), FIELD_SIZE_OF(SMBIOS_TABLE_TYPE22, SBDSSerialNumber), 0},
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{0x16, OFFSET_OF(SMBIOS_TABLE_TYPE22, SBDSManufactureDate), FIELD_SIZE_OF(SMBIOS_TABLE_TYPE22, SBDSManufactureDate), 0},
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};
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SMBIOS_FILTER_TABLE mSmbiosFilterType23BlackList[] = {
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{0x17, OFFSET_OF(SMBIOS_TABLE_TYPE23, ResetCount), FIELD_SIZE_OF(SMBIOS_TABLE_TYPE23, ResetCount), 0},
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};
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SMBIOS_FILTER_TABLE mSmbiosFilterType27BlackList[] = {
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{0x1B, OFFSET_OF(SMBIOS_TABLE_TYPE27, NominalSpeed), FIELD_SIZE_OF(SMBIOS_TABLE_TYPE27, NominalSpeed), 0},
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};
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SMBIOS_FILTER_TABLE mSmbiosFilterType39BlackList[] = {
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{0x27, OFFSET_OF(SMBIOS_TABLE_TYPE39, SerialNumber), FIELD_SIZE_OF(SMBIOS_TABLE_TYPE39, SerialNumber), SMBIOS_FILTER_TABLE_FLAG_IS_STRING},
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{0x27, OFFSET_OF(SMBIOS_TABLE_TYPE39, AssetTagNumber), FIELD_SIZE_OF(SMBIOS_TABLE_TYPE39, AssetTagNumber), SMBIOS_FILTER_TABLE_FLAG_IS_STRING},
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{0x27, OFFSET_OF(SMBIOS_TABLE_TYPE39, ModelPartNumber), FIELD_SIZE_OF(SMBIOS_TABLE_TYPE39, ModelPartNumber), SMBIOS_FILTER_TABLE_FLAG_IS_STRING},
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};
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SMBIOS_FILTER_STRUCT mSmbiosFilterStandardTableBlackList[] = {
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{0x01, mSmbiosFilterType1BlackList, sizeof(mSmbiosFilterType1BlackList)/sizeof(mSmbiosFilterType1BlackList[0])},
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{0x02, mSmbiosFilterType2BlackList, sizeof(mSmbiosFilterType2BlackList)/sizeof(mSmbiosFilterType2BlackList[0])},
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{0x03, mSmbiosFilterType3BlackList, sizeof(mSmbiosFilterType3BlackList)/sizeof(mSmbiosFilterType3BlackList[0])},
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{0x04, mSmbiosFilterType4BlackList, sizeof(mSmbiosFilterType4BlackList)/sizeof(mSmbiosFilterType4BlackList[0])},
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{0x0B, NULL, 0},
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{0x0F, NULL, 0},
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{0x11, mSmbiosFilterType17BlackList, sizeof(mSmbiosFilterType17BlackList)/sizeof(mSmbiosFilterType17BlackList[0])},
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{0x12, NULL, 0},
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{0x16, mSmbiosFilterType22BlackList, sizeof(mSmbiosFilterType22BlackList)/sizeof(mSmbiosFilterType22BlackList[0])},
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{0x17, mSmbiosFilterType23BlackList, sizeof(mSmbiosFilterType23BlackList)/sizeof(mSmbiosFilterType23BlackList[0])},
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{0x1B, mSmbiosFilterType27BlackList, sizeof(mSmbiosFilterType27BlackList)/sizeof(mSmbiosFilterType27BlackList[0])},
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{0x1F, NULL, 0},
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{0x21, NULL, 0},
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{0x27, mSmbiosFilterType39BlackList, sizeof(mSmbiosFilterType39BlackList)/sizeof(mSmbiosFilterType39BlackList[0])},
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};
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EFI_SMBIOS_PROTOCOL *mSmbios;
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UINTN mMaxLen;
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/**
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This function dump raw data.
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@param Data raw data
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@param Size raw data size
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**/
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VOID
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InternalDumpData (
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IN UINT8 *Data,
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IN UINTN Size
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)
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{
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UINTN Index;
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for (Index = 0; Index < Size; Index++) {
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DEBUG ((EFI_D_VERBOSE, "%02x", (UINTN)Data[Index]));
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}
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}
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/**
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This function dump raw data with colume format.
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@param Data raw data
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@param Size raw data size
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**/
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VOID
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InternalDumpHex (
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IN UINT8 *Data,
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IN UINTN Size
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)
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{
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UINTN Index;
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UINTN Count;
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UINTN Left;
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#define COLUME_SIZE (16 * 2)
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Count = Size / COLUME_SIZE;
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Left = Size % COLUME_SIZE;
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for (Index = 0; Index < Count; Index++) {
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DEBUG ((EFI_D_VERBOSE, "%04x: ", Index * COLUME_SIZE));
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InternalDumpData (Data + Index * COLUME_SIZE, COLUME_SIZE);
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DEBUG ((EFI_D_VERBOSE, "\n"));
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}
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if (Left != 0) {
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DEBUG ((EFI_D_VERBOSE, "%04x: ", Index * COLUME_SIZE));
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InternalDumpData (Data + Index * COLUME_SIZE, Left);
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DEBUG ((EFI_D_VERBOSE, "\n"));
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}
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}
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/**
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This function get filter structure by SMBIOS type.
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@param Type SMBIOS type
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**/
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SMBIOS_FILTER_STRUCT *
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GetFilterStructByType (
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IN UINT8 Type
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)
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{
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UINTN Index;
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for (Index = 0; Index < sizeof(mSmbiosFilterStandardTableBlackList)/sizeof(mSmbiosFilterStandardTableBlackList[0]); Index++) {
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if (mSmbiosFilterStandardTableBlackList[Index].Type == Type) {
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return &mSmbiosFilterStandardTableBlackList[Index];
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}
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}
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return NULL;
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}
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/**
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This function get SMBIOS string in SMBIOS table.
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@param Head SMBIOS table head
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@param StringId SMBIOS string ID
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@param StringLen length of SMBIOS string
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@return SMBIOS string data
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**/
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CHAR8 *
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GetSmbiosStringById (
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IN EFI_SMBIOS_TABLE_HEADER *Head,
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IN SMBIOS_TABLE_STRING StringId,
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OUT UINTN *StringLen
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)
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{
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UINTN Size;
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UINTN StrLen;
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CHAR8 *CharInStr;
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UINTN StringsNumber;
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CHAR8 *String;
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CharInStr = (CHAR8 *)Head + Head->Length;
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Size = Head->Length;
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StringsNumber = 0;
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StrLen = 0;
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//
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// look for the two consecutive zeros, check the string limit by the way.
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//
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String = NULL;
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while (*CharInStr != 0 || *(CharInStr+1) != 0) {
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if (*CharInStr == 0) {
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Size += 1;
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CharInStr++;
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}
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String = CharInStr;
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for (StrLen = 0 ; StrLen < mMaxLen; StrLen++) {
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if (*(CharInStr+StrLen) == 0) {
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break;
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}
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}
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*StringLen = StrLen;
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if (StrLen == mMaxLen) {
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return NULL;
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}
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//
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// forward the pointer
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//
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CharInStr += StrLen;
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Size += StrLen;
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StringsNumber += 1;
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if (StringsNumber == StringId) {
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break;
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}
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}
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return String;
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}
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/**
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This function update SMBIOS table based on policy.
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@param TableEntry SMBIOS table
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@param TableEntrySize SMBIOS table size
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**/
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VOID
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FilterSmbiosEntry (
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IN OUT VOID *TableEntry,
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IN UINTN TableEntrySize
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)
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{
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SMBIOS_FILTER_STRUCT *FilterStruct;
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SMBIOS_FILTER_TABLE *Filter;
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UINTN Index;
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SMBIOS_TABLE_STRING StringId;
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CHAR8 *String;
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UINTN StringLen;
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DEBUG ((EFI_D_INFO, "Smbios Table (Type - %d):\n", ((SMBIOS_STRUCTURE *)TableEntry)->Type));
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DEBUG_CODE (InternalDumpHex (TableEntry, TableEntrySize););
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FilterStruct = GetFilterStructByType (((SMBIOS_STRUCTURE *)TableEntry)->Type);
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if (FilterStruct != NULL) {
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if (FilterStruct->Filter == NULL || FilterStruct->FilterCount == 0) {
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// zero all table entries, except header
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ZeroMem ((UINT8 *)TableEntry + sizeof(SMBIOS_STRUCTURE), TableEntrySize - sizeof(SMBIOS_STRUCTURE));
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} else {
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Filter = FilterStruct->Filter;
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for (Index = 0; Index < FilterStruct->FilterCount; Index++) {
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if (((SMBIOS_STRUCTURE *) TableEntry)->Length >= (Filter[Index].Offset + Filter[Index].Size)) {
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//
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// The field is present in the SMBIOS entry.
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//
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if ((Filter[Index].Flags & SMBIOS_FILTER_TABLE_FLAG_IS_STRING) != 0) {
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CopyMem (&StringId, (UINT8 *)TableEntry + Filter[Index].Offset, sizeof(StringId));
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if (StringId != 0) {
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// set ' ' for string field
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String = GetSmbiosStringById (TableEntry, StringId, &StringLen);
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ASSERT (String != NULL);
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//DEBUG ((EFI_D_INFO,"StrId(0x%x)-%a(%d)\n", StringId, String, StringLen));
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SetMem (String, StringLen, ' ');
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}
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}
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// zero non-string field
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ZeroMem ((UINT8 *)TableEntry + Filter[Index].Offset, Filter[Index].Size);
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}
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}
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}
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}
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DEBUG ((EFI_D_INFO, "Filter Smbios Table (Type - %d):\n", ((SMBIOS_STRUCTURE *)TableEntry)->Type));
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DEBUG_CODE (InternalDumpHex (TableEntry, TableEntrySize););
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}
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/**
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Get the full size of SMBIOS structure including optional strings that follow the formatted structure.
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@param Head Pointer to the beginning of SMBIOS structure.
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@param NumberOfStrings The returned number of optional strings that follow the formatted structure.
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@return Size The returned size.
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**/
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UINTN
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GetSmbiosStructureSize (
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IN EFI_SMBIOS_TABLE_HEADER *Head,
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OUT UINTN *NumberOfStrings
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)
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{
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UINTN Size;
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UINTN StrLen;
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CHAR8 *CharInStr;
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UINTN StringsNumber;
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CharInStr = (CHAR8 *)Head + Head->Length;
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Size = Head->Length;
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StringsNumber = 0;
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StrLen = 0;
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//
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// look for the two consecutive zeros, check the string limit by the way.
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//
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while (*CharInStr != 0 || *(CharInStr+1) != 0) {
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if (*CharInStr == 0) {
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Size += 1;
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CharInStr++;
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}
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for (StrLen = 0 ; StrLen < mMaxLen; StrLen++) {
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if (*(CharInStr+StrLen) == 0) {
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break;
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}
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}
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if (StrLen == mMaxLen) {
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return 0;
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}
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//
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// forward the pointer
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//
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CharInStr += StrLen;
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Size += StrLen;
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StringsNumber += 1;
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}
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//
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// count ending two zeros.
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//
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Size += 2;
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if (NumberOfStrings != NULL) {
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*NumberOfStrings = StringsNumber;
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}
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return Size;
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}
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/**
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This function returns full SMBIOS table length.
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@param TableAddress SMBIOS table based address
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@param TableMaximumSize Maximum size of SMBIOS table
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@return SMBIOS table length
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**/
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UINTN
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GetSmbiosTableLength (
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IN VOID *TableAddress,
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IN UINTN TableMaximumSize
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)
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{
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VOID *TableEntry;
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VOID *TableAddressEnd;
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UINTN TableEntryLength;
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TableAddressEnd = (VOID *)((UINTN)TableAddress + TableMaximumSize);
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TableEntry = TableAddress;
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while (TableEntry < TableAddressEnd) {
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TableEntryLength = GetSmbiosStructureSize (TableEntry, NULL);
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if (TableEntryLength == 0) {
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break;
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}
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if (((SMBIOS_STRUCTURE *)TableEntry)->Type == 127) {
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TableEntry = (VOID *)((UINTN)TableEntry + TableEntryLength);
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break;
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}
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TableEntry = (VOID *)((UINTN)TableEntry + TableEntryLength);
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}
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return ((UINTN)TableEntry - (UINTN)TableAddress);
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}
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/**
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This function updatess full SMBIOS table length.
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@param TableAddress SMBIOS table based address
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@param TableLength SMBIOS table length
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**/
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VOID
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FilterSmbiosTable (
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IN OUT VOID *TableAddress,
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IN UINTN TableLength
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)
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{
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VOID *TableAddressEnd;
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VOID *TableEntry;
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UINTN TableEntryLength;
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TableEntry = TableAddress;
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TableAddressEnd = (VOID *)((UINTN)TableAddress + TableLength);
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while ((UINTN)TableEntry < (UINTN)TableAddressEnd) {
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TableEntryLength = GetSmbiosStructureSize (TableEntry, NULL);
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if (TableEntryLength == 0) {
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break;
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}
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FilterSmbiosEntry (TableEntry, TableEntryLength);
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TableEntry = (VOID *)((UINTN)TableEntry + TableEntryLength);
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}
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}
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/**
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Measure SMBIOS with EV_EFI_HANDOFF_TABLES to PCR[1].
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@param[in] Event Event whose notification function is being invoked.
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@param[in] Context Pointer to the notification function's context.
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**/
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VOID
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EFIAPI
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MeasureSmbiosTable (
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IN EFI_EVENT Event,
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IN VOID *Context
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)
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{
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EFI_STATUS Status;
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EFI_HANDOFF_TABLE_POINTERS HandoffTables;
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SMBIOS_TABLE_ENTRY_POINT *SmbiosTable;
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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 ((EFI_D_INFO, "Smbios3Table:\n"));
|
|
DEBUG ((EFI_D_INFO, " AnchorString - '%c%c%c%c%c'\n",
|
|
Smbios3Table->AnchorString[0],
|
|
Smbios3Table->AnchorString[1],
|
|
Smbios3Table->AnchorString[2],
|
|
Smbios3Table->AnchorString[3],
|
|
Smbios3Table->AnchorString[4]
|
|
));
|
|
DEBUG ((EFI_D_INFO, " EntryPointStructureChecksum - 0x%02x\n", Smbios3Table->EntryPointStructureChecksum));
|
|
DEBUG ((EFI_D_INFO, " EntryPointLength - 0x%02x\n", Smbios3Table->EntryPointLength));
|
|
DEBUG ((EFI_D_INFO, " MajorVersion - 0x%02x\n", Smbios3Table->MajorVersion));
|
|
DEBUG ((EFI_D_INFO, " MinorVersion - 0x%02x\n", Smbios3Table->MinorVersion));
|
|
DEBUG ((EFI_D_INFO, " DocRev - 0x%02x\n", Smbios3Table->DocRev));
|
|
DEBUG ((EFI_D_INFO, " EntryPointRevision - 0x%02x\n", Smbios3Table->EntryPointRevision));
|
|
DEBUG ((EFI_D_INFO, " TableMaximumSize - 0x%08x\n", Smbios3Table->TableMaximumSize));
|
|
DEBUG ((EFI_D_INFO, " TableAddress - 0x%016lx\n", Smbios3Table->TableAddress));
|
|
}
|
|
}
|
|
|
|
if (Smbios3Table == NULL) {
|
|
Status = EfiGetSystemConfigurationTable (
|
|
&gEfiSmbiosTableGuid,
|
|
(VOID **) &SmbiosTable
|
|
);
|
|
if (!EFI_ERROR (Status)) {
|
|
DEBUG ((EFI_D_INFO, "SmbiosTable:\n"));
|
|
DEBUG ((EFI_D_INFO, " AnchorString - '%c%c%c%c'\n",
|
|
SmbiosTable->AnchorString[0],
|
|
SmbiosTable->AnchorString[1],
|
|
SmbiosTable->AnchorString[2],
|
|
SmbiosTable->AnchorString[3]
|
|
));
|
|
DEBUG ((EFI_D_INFO, " EntryPointStructureChecksum - 0x%02x\n", SmbiosTable->EntryPointStructureChecksum));
|
|
DEBUG ((EFI_D_INFO, " EntryPointLength - 0x%02x\n", SmbiosTable->EntryPointLength));
|
|
DEBUG ((EFI_D_INFO, " MajorVersion - 0x%02x\n", SmbiosTable->MajorVersion));
|
|
DEBUG ((EFI_D_INFO, " MinorVersion - 0x%02x\n", SmbiosTable->MinorVersion));
|
|
DEBUG ((EFI_D_INFO, " MaxStructureSize - 0x%08x\n", SmbiosTable->MaxStructureSize));
|
|
DEBUG ((EFI_D_INFO, " EntryPointRevision - 0x%02x\n", SmbiosTable->EntryPointRevision));
|
|
DEBUG ((EFI_D_INFO, " FormattedArea - '%c%c%c%c%c'\n",
|
|
SmbiosTable->FormattedArea[0],
|
|
SmbiosTable->FormattedArea[1],
|
|
SmbiosTable->FormattedArea[2],
|
|
SmbiosTable->FormattedArea[3],
|
|
SmbiosTable->FormattedArea[4]
|
|
));
|
|
DEBUG ((EFI_D_INFO, " IntermediateAnchorString - '%c%c%c%c%c'\n",
|
|
SmbiosTable->IntermediateAnchorString[0],
|
|
SmbiosTable->IntermediateAnchorString[1],
|
|
SmbiosTable->IntermediateAnchorString[2],
|
|
SmbiosTable->IntermediateAnchorString[3],
|
|
SmbiosTable->IntermediateAnchorString[4]
|
|
));
|
|
DEBUG ((EFI_D_INFO, " IntermediateChecksum - 0x%02x\n", SmbiosTable->IntermediateChecksum));
|
|
DEBUG ((EFI_D_INFO, " TableLength - 0x%04x\n", SmbiosTable->TableLength));
|
|
DEBUG ((EFI_D_INFO, " TableAddress - 0x%08x\n", SmbiosTable->TableAddress));
|
|
DEBUG ((EFI_D_INFO, " NumberOfSmbiosStructures - 0x%04x\n", SmbiosTable->NumberOfSmbiosStructures));
|
|
DEBUG ((EFI_D_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;
|
|
}
|
|
Status = TpmMeasureAndLogData (
|
|
1, // PCRIndex
|
|
EV_EFI_HANDOFF_TABLES, // EventType
|
|
&HandoffTables, // EventLog
|
|
sizeof (HandoffTables), // LogLen
|
|
TableAddress, // HashData
|
|
TableLength // HashDataLen
|
|
);
|
|
if (EFI_ERROR (Status)) {
|
|
return ;
|
|
}
|
|
}
|
|
|
|
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;
|
|
}
|