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SecurityPkg:Consume gEdkiiTcgPhysicalPresenceInterfaceVerHobGuid

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Consume gEdkiiTcgPhysicalPresenceInterfaceVerHobGuid in
StandaloneMmTcg2PhysicalPresenceLib. This is to avoid
using the dynamic PcdTcgPhysicalPresenceInterfaceVer in
StandaloneMm module.

Signed-off-by: Dun Tan <dun.tan@intel.com>
This commit is contained in:
Dun Tan 2024-05-24 17:41:40 +08:00 committed by mergify[bot]
parent 97ede07beb
commit add3ca4e00
5 changed files with 71 additions and 22 deletions
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20
SecurityPkg/Library/SmmTcg2PhysicalPresenceLib/MmTcg2PhysicalPresenceLibCommon.c
View File

@ -10,24 +10,12 @@
Tcg2PhysicalPresenceLibSubmitRequestToPreOSFunction() and Tcg2PhysicalPresenceLibGetUserConfirmationStatusFunction()
will receive untrusted input and do validation.
Copyright (c) 2015 - 2020, Intel Corporation. All rights reserved.<BR>
Copyright (c) 2015 - 2024, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#include <PiMm.h>
#include <Guid/Tcg2PhysicalPresenceData.h>
#include <Protocol/SmmVariable.h>
#include <Library/BaseLib.h>
#include <Library/DebugLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/Tcg2PpVendorLib.h>
#include <Library/MmServicesTableLib.h>
#define PP_INF_VERSION_1_2 "1.2"
#include "MmTcg2PhysicalPresenceLibCommon.h"
EFI_SMM_VARIABLE_PROTOCOL *mTcg2PpSmmVariable;
BOOLEAN mIsTcg2PPVerLowerThan_1_3 = FALSE;
@ -392,9 +380,7 @@ Tcg2PhysicalPresenceLibCommonConstructor (
{
EFI_STATUS Status;
if (AsciiStrnCmp (PP_INF_VERSION_1_2, (CHAR8 *)PcdGetPtr (PcdTcgPhysicalPresenceInterfaceVer), sizeof (PP_INF_VERSION_1_2) - 1) >= 0) {
mIsTcg2PPVerLowerThan_1_3 = TRUE;
}
mIsTcg2PPVerLowerThan_1_3 = IsTcg2PPVerLowerThan_1_3 ();
//
// Locate SmmVariableProtocol.

25
SecurityPkg/Library/SmmTcg2PhysicalPresenceLib/MmTcg2PhysicalPresenceLibCommon.h
View File

@ -10,7 +10,7 @@
Tcg2PhysicalPresenceLibSubmitRequestToPreOSFunction() and Tcg2PhysicalPresenceLibGetUserConfirmationStatusFunction()
will receive untrusted input and do validation.
Copyright (c) 2015 - 2020, Intel Corporation. All rights reserved.<BR>
Copyright (c) 2015 - 2024, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
@ -18,6 +18,18 @@ SPDX-License-Identifier: BSD-2-Clause-Patent
#ifndef _MM_TCG2_PHYSICAL_PRESENCE_LIB_COMMON_H_
#define _MM_TCG2_PHYSICAL_PRESENCE_LIB_COMMON_H_
#include <Guid/Tcg2PhysicalPresenceData.h>
#include <Protocol/SmmVariable.h>
#include <Library/BaseLib.h>
#include <Library/DebugLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/Tcg2PpVendorLib.h>
#include <Library/MmServicesTableLib.h>
#define PP_INF_VERSION_1_2 "1.2"
/**
The constructor function locates MmVariable protocol.
@ -31,4 +43,15 @@ Tcg2PhysicalPresenceLibCommonConstructor (
VOID
);
/**
Check if Tcg2 PP version is lower than PP_INF_VERSION_1_3.
@retval TRUE Tcg2 PP version is lower than PP_INF_VERSION_1_3.
@retval Other Tcg2 PP version is not lower than PP_INF_VERSION_1_3.
**/
BOOLEAN
IsTcg2PPVerLowerThan_1_3 (
VOID
);
#endif

16
SecurityPkg/Library/SmmTcg2PhysicalPresenceLib/SmmTcg2PhysicalPresenceLib.c
View File

@ -10,7 +10,7 @@
Tcg2PhysicalPresenceLibSubmitRequestToPreOSFunction() and Tcg2PhysicalPresenceLibGetUserConfirmationStatusFunction()
will receive untrusted input and do validation.
Copyright (c) 2015 - 2020, Intel Corporation. All rights reserved.<BR>
Copyright (c) 2015 - 2024, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
@ -39,3 +39,17 @@ Tcg2PhysicalPresenceLibTraditionalConstructor (
{
return Tcg2PhysicalPresenceLibCommonConstructor ();
}
/**
Check if Tcg2 PP version is lower than PP_INF_VERSION_1_3.
@retval TRUE Tcg2 PP version is lower than PP_INF_VERSION_1_3.
@retval Other Tcg2 PP version is not lower than PP_INF_VERSION_1_3.
**/
BOOLEAN
IsTcg2PPVerLowerThan_1_3 (
VOID
)
{
return (BOOLEAN)(AsciiStrnCmp (PP_INF_VERSION_1_2, (CHAR8 *)PcdGetPtr (PcdTcgPhysicalPresenceInterfaceVer), sizeof (PP_INF_VERSION_1_2) - 1) >= 0);
}

27
SecurityPkg/Library/SmmTcg2PhysicalPresenceLib/StandaloneMmTcg2PhysicalPresenceLib.c
View File

@ -10,7 +10,7 @@
Tcg2PhysicalPresenceLibSubmitRequestToPreOSFunction() and Tcg2PhysicalPresenceLibGetUserConfirmationStatusFunction()
will receive untrusted input and do validation.
Copyright (c) 2015 - 2020, Intel Corporation. All rights reserved.<BR>
Copyright (c) 2015 - 2024, Intel Corporation. All rights reserved.<BR>
Copyright (c) Microsoft Corporation.
SPDX-License-Identifier: BSD-2-Clause-Patent
@ -18,6 +18,8 @@ SPDX-License-Identifier: BSD-2-Clause-Patent
#include <PiMm.h>
#include <Library/HobLib.h>
#include "MmTcg2PhysicalPresenceLibCommon.h"
/**
@ -40,3 +42,26 @@ Tcg2PhysicalPresenceLibStandaloneMmConstructor (
{
return Tcg2PhysicalPresenceLibCommonConstructor ();
}
/**
Check if Tcg2 PP version is lower than PP_INF_VERSION_1_3.
@retval TRUE Tcg2 PP version is lower than PP_INF_VERSION_1_3.
@retval Other Tcg2 PP version is not lower than PP_INF_VERSION_1_3.
**/
BOOLEAN
IsTcg2PPVerLowerThan_1_3 (
VOID
)
{
VOID *GuidHob;
GuidHob = GetFirstGuidHob (&gEdkiiTcgPhysicalPresenceInterfaceVerHobGuid);
ASSERT (GuidHob != NULL);
if (AsciiStrnCmp (PP_INF_VERSION_1_2, (CHAR8 *)GET_GUID_HOB_DATA (GuidHob), sizeof (PP_INF_VERSION_1_2) - 1) >= 0) {
return TRUE;
}
return FALSE;
}

5
SecurityPkg/Library/SmmTcg2PhysicalPresenceLib/StandaloneMmTcg2PhysicalPresenceLib.inf
View File

@ -7,7 +7,7 @@
# This driver will have external input - variable.
# This external input must be validated carefully to avoid security issue.
#
# Copyright (c) 2015 - 2020, Intel Corporation. All rights reserved.<BR>
# Copyright (c) 2015 - 2024, Intel Corporation. All rights reserved.<BR>
# Copyright (c) Microsoft Corporation.
# SPDX-License-Identifier: BSD-2-Clause-Patent
#
@ -44,18 +44,19 @@
Tcg2PpVendorLib
MmServicesTableLib
BaseMemoryLib
HobLib
[Guids]
## SOMETIMES_PRODUCES ## Variable:L"PhysicalPresence"
## SOMETIMES_CONSUMES ## Variable:L"PhysicalPresence"
## SOMETIMES_CONSUMES ## Variable:L"PhysicalPresenceFlags"
gEfiTcg2PhysicalPresenceGuid
gEdkiiTcgPhysicalPresenceInterfaceVerHobGuid
[Protocols]
gEfiSmmVariableProtocolGuid ## CONSUMES
[Pcd]
gEfiSecurityPkgTokenSpaceGuid.PcdTcgPhysicalPresenceInterfaceVer ## CONSUMES
gEfiSecurityPkgTokenSpaceGuid.PcdTcg2PhysicalPresenceFlags ## SOMETIMES_CONSUMES
[Depex]