diff options
| -rw-r--r-- | MdeModulePkg/MdeModulePkg.dsc | 1 | ||||
| -rw-r--r-- | MdeModulePkg/Universal/SmbiosMeasurementDxe/SmbiosMeasurementDxe.c | 617 | ||||
| -rw-r--r-- | MdeModulePkg/Universal/SmbiosMeasurementDxe/SmbiosMeasurementDxe.inf | 68 | ||||
| -rw-r--r-- | MdeModulePkg/Universal/SmbiosMeasurementDxe/SmbiosMeasurementDxe.uni | bin | 0 -> 1988 bytes | |||
| -rw-r--r-- | MdeModulePkg/Universal/SmbiosMeasurementDxe/SmbiosMeasurementDxeExtra.uni | bin | 0 -> 1358 bytes |
5 files changed, 686 insertions, 0 deletions
diff --git a/MdeModulePkg/MdeModulePkg.dsc b/MdeModulePkg/MdeModulePkg.dsc index 2dddc41..62f596d 100644 --- a/MdeModulePkg/MdeModulePkg.dsc +++ b/MdeModulePkg/MdeModulePkg.dsc @@ -310,6 +310,7 @@ MdeModulePkg/Universal/MonotonicCounterRuntimeDxe/MonotonicCounterRuntimeDxe.inf
MdeModulePkg/Universal/ResetSystemRuntimeDxe/ResetSystemRuntimeDxe.inf
MdeModulePkg/Universal/SmbiosDxe/SmbiosDxe.inf
+ MdeModulePkg/Universal/SmbiosMeasurementDxe/SmbiosMeasurementDxe.inf
MdeModulePkg/Universal/Network/ArpDxe/ArpDxe.inf
MdeModulePkg/Universal/Network/Dhcp4Dxe/Dhcp4Dxe.inf
diff --git a/MdeModulePkg/Universal/SmbiosMeasurementDxe/SmbiosMeasurementDxe.c b/MdeModulePkg/Universal/SmbiosMeasurementDxe/SmbiosMeasurementDxe.c new file mode 100644 index 0000000..2152827 --- /dev/null +++ b/MdeModulePkg/Universal/SmbiosMeasurementDxe/SmbiosMeasurementDxe.c @@ -0,0 +1,617 @@ +/** @file
+ This driver measures SMBIOS table to TPM.
+
+Copyright (c) 2015, Intel Corporation. All rights reserved.<BR>
+This program and the accompanying materials
+are licensed and made available under the terms and conditions of the BSD License
+which accompanies this distribution. The full text of the license may be found at
+http://opensource.org/licenses/bsd-license.php
+
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#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/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},
+};
+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 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])},
+ {0x1F, NULL, 0},
+ {0x21, NULL, 0},
+ {0x27, mSmbiosFilterType39BlackList, sizeof(mSmbiosFilterType39BlackList)/sizeof(mSmbiosFilterType39BlackList[0])},
+};
+
+EFI_SMBIOS_PROTOCOL *mSmbios;
+UINTN mMaxLen;
+
+/**
+
+ 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 ((EFI_D_INFO, "%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 ((EFI_D_INFO, "%04x: ", Index * COLUME_SIZE));
+ InternalDumpData (Data + Index * COLUME_SIZE, COLUME_SIZE);
+ DEBUG ((EFI_D_INFO, "\n"));
+ }
+
+ if (Left != 0) {
+ DEBUG ((EFI_D_INFO, "%04x: ", Index * COLUME_SIZE));
+ InternalDumpData (Data + Index * COLUME_SIZE, Left);
+ DEBUG ((EFI_D_INFO, "\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 ((EFI_D_INFO, "Smbios Table (Type - %d):\n", ((SMBIOS_STRUCTURE *)TableEntry)->Type));
+ InternalDumpHex (TableEntry, TableEntrySize);
+
+ FilterStruct = GetFilterStructByType (((SMBIOS_STRUCTURE *)TableEntry)->Type);
+ if (FilterStruct != NULL) {
+ if (FilterStruct->Filter == NULL || FilterStruct->FilterCount == 0) {
+ // zero all table entries, except header
+ ZeroMem ((UINT8 *)TableEntry + sizeof(SMBIOS_STRUCTURE), TableEntrySize - sizeof(SMBIOS_STRUCTURE));
+ } else {
+ Filter = FilterStruct->Filter;
+ for (Index = 0; Index < FilterStruct->FilterCount; Index++) {
+ 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);
+ //DEBUG ((EFI_D_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 ((EFI_D_INFO, "Filter Smbios Table (Type - %d):\n", ((SMBIOS_STRUCTURE *)TableEntry)->Type));
+ 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]
+**/
+VOID
+EFIAPI
+MeasureSmbiosTable (
+ IN EFI_EVENT Event,
+ IN VOID *Context
+ )
+{
+ EFI_STATUS Status;
+ EFI_HANDOFF_TABLE_POINTERS HandoffTables;
+ 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 ((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));
+ }
+ }
+ 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",
+ Smbios3Table->AnchorString[0],
+ Smbios3Table->AnchorString[1],
+ Smbios3Table->AnchorString[2],
+ Smbios3Table->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));
+ 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));
+ InternalDumpHex (TableAddress, TableLength);
+
+ HandoffTables.NumberOfTables = 1;
+ 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
+
+ @retval EFI_SUCCESS Smbios protocol installed
+ @retval Other No protocol installed, unload driver.
+
+**/
+EFI_STATUS
+EFIAPI
+SmbiosMeasurementDriverEntryPoint (
+ IN EFI_HANDLE ImageHandle,
+ IN EFI_SYSTEM_TABLE *SystemTable
+ )
+{
+ EFI_STATUS Status;
+ EFI_EVENT Event;
+
+ Status = gBS->LocateProtocol (&gEfiSmbiosProtocolGuid, NULL, &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;
+}
diff --git a/MdeModulePkg/Universal/SmbiosMeasurementDxe/SmbiosMeasurementDxe.inf b/MdeModulePkg/Universal/SmbiosMeasurementDxe/SmbiosMeasurementDxe.inf new file mode 100644 index 0000000..6f89447 --- /dev/null +++ b/MdeModulePkg/Universal/SmbiosMeasurementDxe/SmbiosMeasurementDxe.inf @@ -0,0 +1,68 @@ +## @file
+# This driver measures SMBIOS table to TPM.
+#
+# This driver is a sample driver to follow TCG platform specification to
+# filter some fields in SMBIOS table.
+# - Platform configuration information that is automatically updated,
+# such as clock registers, and system unique information, such as
+# asset numbers or serial numbers, MUST NOT be measured into PCR [1],
+# or any other PCR.
+#
+# A platform may use its own policy to filter some fields in SMBIOS table.
+#
+# Copyright (c) 2015, Intel Corporation. All rights reserved.<BR>
+#
+# This program and the accompanying materials
+# are licensed and made available under the terms and conditions of the BSD License
+# which accompanies this distribution. The full text of the license may be found at
+# http://opensource.org/licenses/bsd-license.php
+# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+#
+#
+##
+
+[Defines]
+ INF_VERSION = 0x00010005
+ BASE_NAME = SmbiosMeasurementDxe
+ MODULE_UNI_FILE = SmbiosMeasurementDxe.uni
+ FILE_GUID = D27FED59-ABB4-4FED-BEAD-2A878C7E4A7E
+ MODULE_TYPE = DXE_DRIVER
+ VERSION_STRING = 1.0
+ ENTRY_POINT = SmbiosMeasurementDriverEntryPoint
+
+#
+# The following information is for reference only and not required by the build tools.
+#
+# VALID_ARCHITECTURES = IA32 X64 IPF EBC ARM AARCH64
+#
+
+[Sources]
+ SmbiosMeasurementDxe.c
+
+[Packages]
+ MdePkg/MdePkg.dec
+ MdeModulePkg/MdeModulePkg.dec
+
+[LibraryClasses]
+ UefiBootServicesTableLib
+ MemoryAllocationLib
+ BaseMemoryLib
+ BaseLib
+ UefiLib
+ UefiDriverEntryPoint
+ DebugLib
+ TpmMeasurementLib
+
+[Protocols]
+ gEfiSmbiosProtocolGuid ## PRODUCES
+
+[Guids]
+ gEfiSmbiosTableGuid ## SOMETIMES_PRODUCES ## SystemTable
+ gEfiSmbios3TableGuid ## SOMETIMES_PRODUCES ## SystemTable
+
+[Depex]
+ gEfiSmbiosProtocolGuid
+
+[UserExtensions.TianoCore."ExtraFiles"]
+ SmbiosMeasurementDxeExtra.uni
diff --git a/MdeModulePkg/Universal/SmbiosMeasurementDxe/SmbiosMeasurementDxe.uni b/MdeModulePkg/Universal/SmbiosMeasurementDxe/SmbiosMeasurementDxe.uni Binary files differnew file mode 100644 index 0000000..98b0f52 --- /dev/null +++ b/MdeModulePkg/Universal/SmbiosMeasurementDxe/SmbiosMeasurementDxe.uni diff --git a/MdeModulePkg/Universal/SmbiosMeasurementDxe/SmbiosMeasurementDxeExtra.uni b/MdeModulePkg/Universal/SmbiosMeasurementDxe/SmbiosMeasurementDxeExtra.uni Binary files differnew file mode 100644 index 0000000..4e081c4 --- /dev/null +++ b/MdeModulePkg/Universal/SmbiosMeasurementDxe/SmbiosMeasurementDxeExtra.uni |