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Diffstat (limited to 'SecurityPkg/Library/SmmTcg2PhysicalPresenceLib/MmTcg2PhysicalPresenceLibCommon.c')
-rw-r--r--SecurityPkg/Library/SmmTcg2PhysicalPresenceLib/MmTcg2PhysicalPresenceLibCommon.c154
1 files changed, 82 insertions, 72 deletions
diff --git a/SecurityPkg/Library/SmmTcg2PhysicalPresenceLib/MmTcg2PhysicalPresenceLibCommon.c b/SecurityPkg/Library/SmmTcg2PhysicalPresenceLib/MmTcg2PhysicalPresenceLibCommon.c
index 3788537db3..1fbfc00547 100644
--- a/SecurityPkg/Library/SmmTcg2PhysicalPresenceLib/MmTcg2PhysicalPresenceLibCommon.c
+++ b/SecurityPkg/Library/SmmTcg2PhysicalPresenceLib/MmTcg2PhysicalPresenceLibCommon.c
@@ -27,7 +27,7 @@ SPDX-License-Identifier: BSD-2-Clause-Patent
#include <Library/Tcg2PpVendorLib.h>
#include <Library/MmServicesTableLib.h>
-#define PP_INF_VERSION_1_2 "1.2"
+#define PP_INF_VERSION_1_2 "1.2"
EFI_SMM_VARIABLE_PROTOCOL *mTcg2PpSmmVariable;
BOOLEAN mIsTcg2PPVerLowerThan_1_3 = FALSE;
@@ -47,13 +47,13 @@ UINT32 mTcg2PhysicalPresenceFlags;
UINT32
EFIAPI
Tcg2PhysicalPresenceLibReturnOperationResponseToOsFunction (
- OUT UINT32 *MostRecentRequest,
- OUT UINT32 *Response
+ OUT UINT32 *MostRecentRequest,
+ OUT UINT32 *Response
)
{
- EFI_STATUS Status;
- UINTN DataSize;
- EFI_TCG2_PHYSICAL_PRESENCE PpData;
+ EFI_STATUS Status;
+ UINTN DataSize;
+ EFI_TCG2_PHYSICAL_PRESENCE PpData;
DEBUG ((DEBUG_INFO, "[TPM2] ReturnOperationResponseToOsFunction\n"));
@@ -61,13 +61,13 @@ Tcg2PhysicalPresenceLibReturnOperationResponseToOsFunction (
// Get the Physical Presence variable
//
DataSize = sizeof (EFI_TCG2_PHYSICAL_PRESENCE);
- Status = mTcg2PpSmmVariable->SmmGetVariable (
- TCG2_PHYSICAL_PRESENCE_VARIABLE,
- &gEfiTcg2PhysicalPresenceGuid,
- NULL,
- &DataSize,
- &PpData
- );
+ Status = mTcg2PpSmmVariable->SmmGetVariable (
+ TCG2_PHYSICAL_PRESENCE_VARIABLE,
+ &gEfiTcg2PhysicalPresenceGuid,
+ NULL,
+ &DataSize,
+ &PpData
+ );
if (EFI_ERROR (Status)) {
*MostRecentRequest = 0;
*Response = 0;
@@ -98,8 +98,8 @@ Tcg2PhysicalPresenceLibReturnOperationResponseToOsFunction (
**/
UINT32
Tcg2PhysicalPresenceLibSubmitRequestToPreOSFunctionEx (
- IN OUT UINT32 *OperationRequest,
- IN OUT UINT32 *RequestParameter
+ IN OUT UINT32 *OperationRequest,
+ IN OUT UINT32 *RequestParameter
)
{
EFI_STATUS Status;
@@ -115,13 +115,13 @@ Tcg2PhysicalPresenceLibSubmitRequestToPreOSFunctionEx (
// Get the Physical Presence variable
//
DataSize = sizeof (EFI_TCG2_PHYSICAL_PRESENCE);
- Status = mTcg2PpSmmVariable->SmmGetVariable (
- TCG2_PHYSICAL_PRESENCE_VARIABLE,
- &gEfiTcg2PhysicalPresenceGuid,
- NULL,
- &DataSize,
- &PpData
- );
+ Status = mTcg2PpSmmVariable->SmmGetVariable (
+ TCG2_PHYSICAL_PRESENCE_VARIABLE,
+ &gEfiTcg2PhysicalPresenceGuid,
+ NULL,
+ &DataSize,
+ &PpData
+ );
if (EFI_ERROR (Status)) {
DEBUG ((DEBUG_ERROR, "[TPM2] Get PP variable failure! Status = %r\n", Status));
ReturnCode = TCG_PP_SUBMIT_REQUEST_TO_PREOS_GENERAL_FAILURE;
@@ -129,23 +129,25 @@ Tcg2PhysicalPresenceLibSubmitRequestToPreOSFunctionEx (
}
if ((*OperationRequest > TCG2_PHYSICAL_PRESENCE_NO_ACTION_MAX) &&
- (*OperationRequest < TCG2_PHYSICAL_PRESENCE_STORAGE_MANAGEMENT_BEGIN) ) {
+ (*OperationRequest < TCG2_PHYSICAL_PRESENCE_STORAGE_MANAGEMENT_BEGIN))
+ {
ReturnCode = TCG_PP_SUBMIT_REQUEST_TO_PREOS_NOT_IMPLEMENTED;
goto EXIT;
}
if ((PpData.PPRequest != *OperationRequest) ||
- (PpData.PPRequestParameter != *RequestParameter)) {
- PpData.PPRequest = (UINT8)*OperationRequest;
+ (PpData.PPRequestParameter != *RequestParameter))
+ {
+ PpData.PPRequest = (UINT8)*OperationRequest;
PpData.PPRequestParameter = *RequestParameter;
- DataSize = sizeof (EFI_TCG2_PHYSICAL_PRESENCE);
- Status = mTcg2PpSmmVariable->SmmSetVariable (
- TCG2_PHYSICAL_PRESENCE_VARIABLE,
- &gEfiTcg2PhysicalPresenceGuid,
- EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,
- DataSize,
- &PpData
- );
+ DataSize = sizeof (EFI_TCG2_PHYSICAL_PRESENCE);
+ Status = mTcg2PpSmmVariable->SmmSetVariable (
+ TCG2_PHYSICAL_PRESENCE_VARIABLE,
+ &gEfiTcg2PhysicalPresenceGuid,
+ EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_BOOTSERVICE_ACCESS | EFI_VARIABLE_RUNTIME_ACCESS,
+ DataSize,
+ &PpData
+ );
if (EFI_ERROR (Status)) {
DEBUG ((DEBUG_ERROR, "[TPM2] Set PP variable failure! Status = %r\n", Status));
ReturnCode = TCG_PP_SUBMIT_REQUEST_TO_PREOS_GENERAL_FAILURE;
@@ -155,16 +157,17 @@ Tcg2PhysicalPresenceLibSubmitRequestToPreOSFunctionEx (
if (*OperationRequest >= TCG2_PHYSICAL_PRESENCE_VENDOR_SPECIFIC_OPERATION) {
DataSize = sizeof (EFI_TCG2_PHYSICAL_PRESENCE_FLAGS);
- Status = mTcg2PpSmmVariable->SmmGetVariable (
- TCG2_PHYSICAL_PRESENCE_FLAGS_VARIABLE,
- &gEfiTcg2PhysicalPresenceGuid,
- NULL,
- &DataSize,
- &Flags
- );
+ Status = mTcg2PpSmmVariable->SmmGetVariable (
+ TCG2_PHYSICAL_PRESENCE_FLAGS_VARIABLE,
+ &gEfiTcg2PhysicalPresenceGuid,
+ NULL,
+ &DataSize,
+ &Flags
+ );
if (EFI_ERROR (Status)) {
Flags.PPFlags = mTcg2PhysicalPresenceFlags;
}
+
ReturnCode = Tcg2PpVendorLibSubmitRequestToPreOSFunction (*OperationRequest, Flags.PPFlags, *RequestParameter);
}
@@ -175,7 +178,7 @@ EXIT:
if (ReturnCode != TCG_PP_SUBMIT_REQUEST_TO_PREOS_SUCCESS) {
DEBUG ((DEBUG_ERROR, "[TPM2] Submit PP Request failure! Sync PPRQ/PPRM with PP variable.\n", Status));
DataSize = sizeof (EFI_TCG2_PHYSICAL_PRESENCE);
- ZeroMem(&PpData, DataSize);
+ ZeroMem (&PpData, DataSize);
Status = mTcg2PpSmmVariable->SmmGetVariable (
TCG2_PHYSICAL_PRESENCE_VARIABLE,
&gEfiTcg2PhysicalPresenceGuid,
@@ -208,17 +211,17 @@ EXIT:
UINT32
EFIAPI
Tcg2PhysicalPresenceLibSubmitRequestToPreOSFunction (
- IN UINT32 OperationRequest,
- IN UINT32 RequestParameter
+ IN UINT32 OperationRequest,
+ IN UINT32 RequestParameter
)
{
- UINT32 TempOperationRequest;
- UINT32 TempRequestParameter;
+ UINT32 TempOperationRequest;
+ UINT32 TempRequestParameter;
TempOperationRequest = OperationRequest;
TempRequestParameter = RequestParameter;
- return Tcg2PhysicalPresenceLibSubmitRequestToPreOSFunctionEx(&TempOperationRequest, &TempRequestParameter);
+ return Tcg2PhysicalPresenceLibSubmitRequestToPreOSFunctionEx (&TempOperationRequest, &TempRequestParameter);
}
/**
@@ -236,7 +239,7 @@ Tcg2PhysicalPresenceLibSubmitRequestToPreOSFunction (
UINT32
EFIAPI
Tcg2PhysicalPresenceLibGetUserConfirmationStatusFunction (
- IN UINT32 OperationRequest
+ IN UINT32 OperationRequest
)
{
EFI_STATUS Status;
@@ -251,28 +254,29 @@ Tcg2PhysicalPresenceLibGetUserConfirmationStatusFunction (
// Get the Physical Presence variable
//
DataSize = sizeof (EFI_TCG2_PHYSICAL_PRESENCE);
- Status = mTcg2PpSmmVariable->SmmGetVariable (
- TCG2_PHYSICAL_PRESENCE_VARIABLE,
- &gEfiTcg2PhysicalPresenceGuid,
- NULL,
- &DataSize,
- &PpData
- );
+ Status = mTcg2PpSmmVariable->SmmGetVariable (
+ TCG2_PHYSICAL_PRESENCE_VARIABLE,
+ &gEfiTcg2PhysicalPresenceGuid,
+ NULL,
+ &DataSize,
+ &PpData
+ );
if (EFI_ERROR (Status)) {
DEBUG ((DEBUG_ERROR, "[TPM2] Get PP variable failure! Status = %r\n", Status));
return TCG_PP_GET_USER_CONFIRMATION_BLOCKED_BY_BIOS_CONFIGURATION;
}
+
//
// Get the Physical Presence flags
//
DataSize = sizeof (EFI_TCG2_PHYSICAL_PRESENCE_FLAGS);
- Status = mTcg2PpSmmVariable->SmmGetVariable (
- TCG2_PHYSICAL_PRESENCE_FLAGS_VARIABLE,
- &gEfiTcg2PhysicalPresenceGuid,
- NULL,
- &DataSize,
- &Flags
- );
+ Status = mTcg2PpSmmVariable->SmmGetVariable (
+ TCG2_PHYSICAL_PRESENCE_FLAGS_VARIABLE,
+ &gEfiTcg2PhysicalPresenceGuid,
+ NULL,
+ &DataSize,
+ &Flags
+ );
if (EFI_ERROR (Status)) {
DEBUG ((DEBUG_ERROR, "[TPM2] Get PP flags failure! Status = %r\n", Status));
return TCG_PP_GET_USER_CONFIRMATION_BLOCKED_BY_BIOS_CONFIGURATION;
@@ -288,6 +292,7 @@ Tcg2PhysicalPresenceLibGetUserConfirmationStatusFunction (
if ((Flags.PPFlags & TCG2_BIOS_TPM_MANAGEMENT_FLAG_PP_REQUIRED_FOR_CLEAR) == 0) {
RequestConfirmed = TRUE;
}
+
break;
case TCG2_PHYSICAL_PRESENCE_NO_ACTION:
@@ -302,12 +307,14 @@ Tcg2PhysicalPresenceLibGetUserConfirmationStatusFunction (
if ((Flags.PPFlags & TCG2_BIOS_TPM_MANAGEMENT_FLAG_PP_REQUIRED_FOR_CHANGE_PCRS) == 0) {
RequestConfirmed = TRUE;
}
+
break;
case TCG2_PHYSICAL_PRESENCE_CHANGE_EPS:
if ((Flags.PPFlags & TCG2_BIOS_TPM_MANAGEMENT_FLAG_PP_REQUIRED_FOR_CHANGE_EPS) == 0) {
RequestConfirmed = TRUE;
}
+
break;
case TCG2_PHYSICAL_PRESENCE_LOG_ALL_DIGESTS:
@@ -318,12 +325,14 @@ Tcg2PhysicalPresenceLibGetUserConfirmationStatusFunction (
if ((Flags.PPFlags & TCG2_BIOS_STORAGE_MANAGEMENT_FLAG_PP_REQUIRED_FOR_ENABLE_BLOCK_SID) == 0) {
RequestConfirmed = TRUE;
}
+
break;
case TCG2_PHYSICAL_PRESENCE_DISABLE_BLOCK_SID:
if ((Flags.PPFlags & TCG2_BIOS_STORAGE_MANAGEMENT_FLAG_PP_REQUIRED_FOR_DISABLE_BLOCK_SID) == 0) {
RequestConfirmed = TRUE;
}
+
break;
case TCG2_PHYSICAL_PRESENCE_SET_PP_REQUIRED_FOR_ENABLE_BLOCK_SID_FUNC_TRUE:
@@ -344,15 +353,16 @@ Tcg2PhysicalPresenceLibGetUserConfirmationStatusFunction (
return TCG_PP_GET_USER_CONFIRMATION_NOT_IMPLEMENTED;
}
} else {
- //
- // TCG PP lower than 1.3. (1.0, 1.1, 1.2)
- //
- if (OperationRequest <= TCG2_PHYSICAL_PRESENCE_NO_ACTION_MAX) {
- RequestConfirmed = TRUE;
- } else if (OperationRequest < TCG2_PHYSICAL_PRESENCE_VENDOR_SPECIFIC_OPERATION) {
- return TCG_PP_GET_USER_CONFIRMATION_NOT_IMPLEMENTED;
- }
+ //
+ // TCG PP lower than 1.3. (1.0, 1.1, 1.2)
+ //
+ if (OperationRequest <= TCG2_PHYSICAL_PRESENCE_NO_ACTION_MAX) {
+ RequestConfirmed = TRUE;
+ } else if (OperationRequest < TCG2_PHYSICAL_PRESENCE_VENDOR_SPECIFIC_OPERATION) {
+ return TCG_PP_GET_USER_CONFIRMATION_NOT_IMPLEMENTED;
+ }
}
+
break;
}
@@ -382,17 +392,17 @@ Tcg2PhysicalPresenceLibCommonConstructor (
{
EFI_STATUS Status;
- if (AsciiStrnCmp(PP_INF_VERSION_1_2, (CHAR8 *)PcdGetPtr(PcdTcgPhysicalPresenceInterfaceVer), sizeof(PP_INF_VERSION_1_2) - 1) >= 0) {
+ if (AsciiStrnCmp (PP_INF_VERSION_1_2, (CHAR8 *)PcdGetPtr (PcdTcgPhysicalPresenceInterfaceVer), sizeof (PP_INF_VERSION_1_2) - 1) >= 0) {
mIsTcg2PPVerLowerThan_1_3 = TRUE;
}
//
// Locate SmmVariableProtocol.
//
- Status = gMmst->MmLocateProtocol (&gEfiSmmVariableProtocolGuid, NULL, (VOID**)&mTcg2PpSmmVariable);
+ Status = gMmst->MmLocateProtocol (&gEfiSmmVariableProtocolGuid, NULL, (VOID **)&mTcg2PpSmmVariable);
ASSERT_EFI_ERROR (Status);
- mTcg2PhysicalPresenceFlags = PcdGet32(PcdTcg2PhysicalPresenceFlags);
+ mTcg2PhysicalPresenceFlags = PcdGet32 (PcdTcg2PhysicalPresenceFlags);
return EFI_SUCCESS;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-25 18:50:51 +0000