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MdeModulePkg/Variable: Parameterize auth status in VariableParsing 

The file VariableParsing.c provides generic functionality related
to parsing variable related structures and information. In order to
calculate offsets for certain operations, the functions must know if
authenticated variables are enabled as this increases the size of
variable headers.

This change removes linking against a global variable in an external file
in favor of passing the authenticated variable status as a parameter to
the variable parsing functions.

Cc: Dandan Bi <dandan.bi@intel.com>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Eric Dong <eric.dong@intel.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Liming Gao <liming.gao@intel.com>
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Hao A Wu <hao.a.wu@intel.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Signed-off-by: Michael Kubacki <michael.a.kubacki@intel.com>
Reviewed-by: Jian J Wang <jian.j.wang@intel.com>
Reviewed-by: Hao A Wu <hao.a.wu@intel.com>
This commit is contained in:
Michael Kubacki 2019-09-27 15:18:42 -07:00
parent 8d53adbee9
commit 044010234e
5 changed files with 339 additions and 167 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

258
MdeModulePkg/Universal/Variable/RuntimeDxe/Variable.c
View File

@ -311,7 +311,7 @@ RecordVarErrorFlag (
FALSE
);
if (!EFI_ERROR (Status)) {
VarErrFlag = (VAR_ERROR_FLAG *) GetVariableDataPtr (Variable.CurrPtr);
VarErrFlag = (VAR_ERROR_FLAG *) GetVariableDataPtr (Variable.CurrPtr, mVariableModuleGlobal->VariableGlobal.AuthFormat);
TempFlag = *VarErrFlag;
TempFlag &= Flag;
if (TempFlag == *VarErrFlag) {
@ -369,7 +369,7 @@ InitializeVarErrorFlag (
FALSE
);
if (!EFI_ERROR (Status)) {
VarErrFlag = *((VAR_ERROR_FLAG *) GetVariableDataPtr (Variable.CurrPtr));
VarErrFlag = *((VAR_ERROR_FLAG *) GetVariableDataPtr (Variable.CurrPtr, mVariableModuleGlobal->VariableGlobal.AuthFormat));
if (VarErrFlag == Flag) {
return;
}
@ -410,7 +410,11 @@ IsUserVariable (
// then no need to check if the variable is user variable or not specially.
//
if (mEndOfDxe && (mVariableModuleGlobal->CommonMaxUserVariableSpace != mVariableModuleGlobal->CommonVariableSpace)) {
if (VarCheckLibVariablePropertyGet (GetVariableNamePtr (Variable), GetVendorGuidPtr (Variable), &Property) == EFI_NOT_FOUND) {
if (VarCheckLibVariablePropertyGet (
GetVariableNamePtr (Variable, mVariableModuleGlobal->VariableGlobal.AuthFormat),
GetVendorGuidPtr (Variable, mVariableModuleGlobal->VariableGlobal.AuthFormat),
&Property
) == EFI_NOT_FOUND) {
return TRUE;
}
}
@ -439,10 +443,14 @@ CalculateCommonUserVariableTotalSize (
if (mEndOfDxe && (mVariableModuleGlobal->CommonMaxUserVariableSpace != mVariableModuleGlobal->CommonVariableSpace)) {
Variable = GetStartPointer (mNvVariableCache);
while (IsValidVariableHeader (Variable, GetEndPointer (mNvVariableCache))) {
NextVariable = GetNextVariablePtr (Variable);
NextVariable = GetNextVariablePtr (Variable, mVariableModuleGlobal->VariableGlobal.AuthFormat);
VariableSize = (UINTN) NextVariable - (UINTN) Variable;
if ((Variable->Attributes & EFI_VARIABLE_HARDWARE_ERROR_RECORD) != EFI_VARIABLE_HARDWARE_ERROR_RECORD) {
if (VarCheckLibVariablePropertyGet (GetVariableNamePtr (Variable), GetVendorGuidPtr (Variable), &Property) == EFI_NOT_FOUND) {
if (VarCheckLibVariablePropertyGet (
GetVariableNamePtr (Variable, mVariableModuleGlobal->VariableGlobal.AuthFormat),
GetVendorGuidPtr (Variable, mVariableModuleGlobal->VariableGlobal.AuthFormat),
&Property
) == EFI_NOT_FOUND) {
//
// No property, it is user variable.
//
@ -518,7 +526,9 @@ Reclaim (
UINTN HwErrVariableTotalSize;
VARIABLE_HEADER *UpdatingVariable;
VARIABLE_HEADER *UpdatingInDeletedTransition;
BOOLEAN AuthFormat;
AuthFormat = mVariableModuleGlobal->VariableGlobal.AuthFormat;
UpdatingVariable = NULL;
UpdatingInDeletedTransition = NULL;
if (UpdatingPtrTrack != NULL) {
@ -540,7 +550,7 @@ Reclaim (
MaximumBufferSize = sizeof (VARIABLE_STORE_HEADER);
while (IsValidVariableHeader (Variable, GetEndPointer (VariableStoreHeader))) {
NextVariable = GetNextVariablePtr (Variable);
NextVariable = GetNextVariablePtr (Variable, AuthFormat);
if ((Variable->State == VAR_ADDED || Variable->State == (VAR_IN_DELETED_TRANSITION & VAR_ADDED)) &&
Variable != UpdatingVariable &&
Variable != UpdatingInDeletedTransition
@ -590,7 +600,7 @@ Reclaim (
//
Variable = GetStartPointer (VariableStoreHeader);
while (IsValidVariableHeader (Variable, GetEndPointer (VariableStoreHeader))) {
NextVariable = GetNextVariablePtr (Variable);
NextVariable = GetNextVariablePtr (Variable, AuthFormat);
if (Variable != UpdatingVariable && Variable->State == VAR_ADDED) {
VariableSize = (UINTN) NextVariable - (UINTN) Variable;
CopyMem (CurrPtr, (UINT8 *) Variable, VariableSize);
@ -612,7 +622,7 @@ Reclaim (
//
Variable = GetStartPointer (VariableStoreHeader);
while (IsValidVariableHeader (Variable, GetEndPointer (VariableStoreHeader))) {
NextVariable = GetNextVariablePtr (Variable);
NextVariable = GetNextVariablePtr (Variable, AuthFormat);
if (Variable != UpdatingVariable && Variable != UpdatingInDeletedTransition && Variable->State == (VAR_IN_DELETED_TRANSITION & VAR_ADDED)) {
//
@ -624,13 +634,14 @@ Reclaim (
FoundAdded = FALSE;
AddedVariable = GetStartPointer ((VARIABLE_STORE_HEADER *) ValidBuffer);
while (IsValidVariableHeader (AddedVariable, GetEndPointer ((VARIABLE_STORE_HEADER *) ValidBuffer))) {
NextAddedVariable = GetNextVariablePtr (AddedVariable);
NameSize = NameSizeOfVariable (AddedVariable);
if (CompareGuid (GetVendorGuidPtr (AddedVariable), GetVendorGuidPtr (Variable)) &&
NameSize == NameSizeOfVariable (Variable)
) {
Point0 = (VOID *) GetVariableNamePtr (AddedVariable);
Point1 = (VOID *) GetVariableNamePtr (Variable);
NextAddedVariable = GetNextVariablePtr (AddedVariable, AuthFormat);
NameSize = NameSizeOfVariable (AddedVariable, AuthFormat);
if (CompareGuid (
GetVendorGuidPtr (AddedVariable, AuthFormat),
GetVendorGuidPtr (Variable, AuthFormat)
) && NameSize == NameSizeOfVariable (Variable, AuthFormat)) {
Point0 = (VOID *) GetVariableNamePtr (AddedVariable, AuthFormat);
Point1 = (VOID *) GetVariableNamePtr (Variable, AuthFormat);
if (CompareMem (Point0, Point1, NameSize) == 0) {
FoundAdded = TRUE;
break;
@ -735,7 +746,7 @@ Reclaim (
mVariableModuleGlobal->CommonUserVariableTotalSize = 0;
Variable = GetStartPointer ((VARIABLE_STORE_HEADER *)(UINTN)VariableBase);
while (IsValidVariableHeader (Variable, GetEndPointer ((VARIABLE_STORE_HEADER *)(UINTN)VariableBase))) {
NextVariable = GetNextVariablePtr (Variable);
NextVariable = GetNextVariablePtr (Variable, AuthFormat);
VariableSize = (UINTN) NextVariable - (UINTN) Variable;
if ((Variable->Attributes & EFI_VARIABLE_HARDWARE_ERROR_RECORD) == EFI_VARIABLE_HARDWARE_ERROR_RECORD) {
mVariableModuleGlobal->HwErrVariableTotalSize += VariableSize;
@ -829,7 +840,13 @@ FindVariable (
PtrTrack->EndPtr = GetEndPointer (VariableStoreHeader[Type]);
PtrTrack->Volatile = (BOOLEAN) (Type == VariableStoreTypeVolatile);
Status = FindVariableEx (VariableName, VendorGuid, IgnoreRtCheck, PtrTrack);
Status = FindVariableEx (
VariableName,
VendorGuid,
IgnoreRtCheck,
PtrTrack,
mVariableModuleGlobal->VariableGlobal.AuthFormat
);
if (!EFI_ERROR (Status)) {
return Status;
}
@ -1199,7 +1216,11 @@ CheckRemainingSpaceForConsistencyInternal (
VarNameSize += GET_PAD_SIZE (VarNameSize);
VarDataSize = VariableEntry->VariableSize;
VarDataSize += GET_PAD_SIZE (VarDataSize);
VariableEntry->VariableSize = HEADER_ALIGN (GetVariableHeaderSize () + VarNameSize + VarDataSize);
VariableEntry->VariableSize = HEADER_ALIGN (
GetVariableHeaderSize (
mVariableModuleGlobal->VariableGlobal.AuthFormat
) + VarNameSize + VarDataSize
);
TotalNeededSize += VariableEntry->VariableSize;
VariableEntry = VA_ARG (Args, VARIABLE_ENTRY_CONSISTENCY *);
@ -1232,13 +1253,14 @@ CheckRemainingSpaceForConsistencyInternal (
VariableEntry->Name,
VariableEntry->Guid,
FALSE,
&VariablePtrTrack
&VariablePtrTrack,
mVariableModuleGlobal->VariableGlobal.AuthFormat
);
if (!EFI_ERROR (Status)) {
//
// Get size of Variable[Index].
//
NextVariable = GetNextVariablePtr (VariablePtrTrack.CurrPtr);
NextVariable = GetNextVariablePtr (VariablePtrTrack.CurrPtr, mVariableModuleGlobal->VariableGlobal.AuthFormat);
OriginalVarSize = (UINTN) NextVariable - (UINTN) VariablePtrTrack.CurrPtr;
//
// Add the original size of Variable[Index] to remaining variable storage size.
@ -1410,8 +1432,8 @@ AutoUpdateLangVariable (
// Update Lang
//
VariableName = EFI_PLATFORM_LANG_VARIABLE_NAME;
Data = GetVariableDataPtr (Variable.CurrPtr);
DataSize = DataSizeOfVariable (Variable.CurrPtr);
Data = GetVariableDataPtr (Variable.CurrPtr, mVariableModuleGlobal->VariableGlobal.AuthFormat);
DataSize = DataSizeOfVariable (Variable.CurrPtr, mVariableModuleGlobal->VariableGlobal.AuthFormat);
} else {
Status = FindVariable (EFI_LANG_VARIABLE_NAME, &gEfiGlobalVariableGuid, &Variable, &mVariableModuleGlobal->VariableGlobal, FALSE);
if (!EFI_ERROR (Status)) {
@ -1419,8 +1441,8 @@ AutoUpdateLangVariable (
// Update PlatformLang
//
VariableName = EFI_LANG_VARIABLE_NAME;
Data = GetVariableDataPtr (Variable.CurrPtr);
DataSize = DataSizeOfVariable (Variable.CurrPtr);
Data = GetVariableDataPtr (Variable.CurrPtr, mVariableModuleGlobal->VariableGlobal.AuthFormat);
DataSize = DataSizeOfVariable (Variable.CurrPtr, mVariableModuleGlobal->VariableGlobal.AuthFormat);
} else {
//
// Neither PlatformLang nor Lang is set, directly return
@ -1598,6 +1620,7 @@ UpdateVariable (
BOOLEAN IsCommonVariable;
BOOLEAN IsCommonUserVariable;
AUTHENTICATED_VARIABLE_HEADER *AuthVariable;
BOOLEAN AuthFormat;
if (mVariableModuleGlobal->FvbInstance == NULL && !mVariableModuleGlobal->VariableGlobal.EmuNvMode) {
//
@ -1619,6 +1642,8 @@ UpdateVariable (
}
}
AuthFormat = mVariableModuleGlobal->VariableGlobal.AuthFormat;
//
// Check if CacheVariable points to the variable in variable HOB.
// If yes, let CacheVariable points to the variable in NV variable cache.
@ -1630,7 +1655,7 @@ UpdateVariable (
CacheVariable->StartPtr = GetStartPointer (mNvVariableCache);
CacheVariable->EndPtr = GetEndPointer (mNvVariableCache);
CacheVariable->Volatile = FALSE;
Status = FindVariableEx (VariableName, VendorGuid, FALSE, CacheVariable);
Status = FindVariableEx (VariableName, VendorGuid, FALSE, CacheVariable, AuthFormat);
if (CacheVariable->CurrPtr == NULL || EFI_ERROR (Status)) {
//
// There is no matched variable in NV variable cache.
@ -1770,8 +1795,8 @@ UpdateVariable (
// If the variable is marked valid, and the same data has been passed in,
// then return to the caller immediately.
//
if (DataSizeOfVariable (CacheVariable->CurrPtr) == DataSize &&
(CompareMem (Data, GetVariableDataPtr (CacheVariable->CurrPtr), DataSize) == 0) &&
if (DataSizeOfVariable (CacheVariable->CurrPtr, AuthFormat) == DataSize &&
(CompareMem (Data, GetVariableDataPtr (CacheVariable->CurrPtr, AuthFormat), DataSize) == 0) &&
((Attributes & EFI_VARIABLE_APPEND_WRITE) == 0) &&
(TimeStamp == NULL)) {
//
@ -1791,9 +1816,13 @@ UpdateVariable (
// NOTE: From 0 to DataOffset of NextVariable is reserved for Variable Header and Name.
// From DataOffset of NextVariable is to save the existing variable data.
//
DataOffset = GetVariableDataOffset (CacheVariable->CurrPtr);
DataOffset = GetVariableDataOffset (CacheVariable->CurrPtr, AuthFormat);
BufferForMerge = (UINT8 *) ((UINTN) NextVariable + DataOffset);
CopyMem (BufferForMerge, (UINT8 *) ((UINTN) CacheVariable->CurrPtr + DataOffset), DataSizeOfVariable (CacheVariable->CurrPtr));
CopyMem (
BufferForMerge,
(UINT8 *) ((UINTN) CacheVariable->CurrPtr + DataOffset),
DataSizeOfVariable (CacheVariable->CurrPtr, AuthFormat)
);
//
// Set Max Auth/Non-Volatile/Volatile Variable Data Size as default MaxDataSize.
@ -1814,15 +1843,22 @@ UpdateVariable (
MaxDataSize = PcdGet32 (PcdMaxHardwareErrorVariableSize) - DataOffset;
}
if (DataSizeOfVariable (CacheVariable->CurrPtr) + DataSize > MaxDataSize) {
if (DataSizeOfVariable (CacheVariable->CurrPtr, AuthFormat) + DataSize > MaxDataSize) {
//
// Existing data size + new data size exceed maximum variable size limitation.
//
Status = EFI_INVALID_PARAMETER;
goto Done;
}
CopyMem ((UINT8*) ((UINTN) BufferForMerge + DataSizeOfVariable (CacheVariable->CurrPtr)), Data, DataSize);
MergedBufSize = DataSizeOfVariable (CacheVariable->CurrPtr) + DataSize;
CopyMem (
(UINT8*) (
(UINTN) BufferForMerge + DataSizeOfVariable (CacheVariable->CurrPtr, AuthFormat)
),
Data,
DataSize
);
MergedBufSize = DataSizeOfVariable (CacheVariable->CurrPtr, AuthFormat) +
DataSize;
//
// BufferForMerge(from DataOffset of NextVariable) has included the merged existing and new data.
@ -1925,7 +1961,7 @@ UpdateVariable (
//
NextVariable->Attributes = Attributes & (~EFI_VARIABLE_APPEND_WRITE);
VarNameOffset = GetVariableHeaderSize ();
VarNameOffset = GetVariableHeaderSize (AuthFormat);
VarNameSize = StrSize (VariableName);
CopyMem (
(UINT8 *) ((UINTN) NextVariable + VarNameOffset),
@ -1946,14 +1982,18 @@ UpdateVariable (
);
}
CopyMem (GetVendorGuidPtr (NextVariable), VendorGuid, sizeof (EFI_GUID));
CopyMem (
GetVendorGuidPtr (NextVariable, AuthFormat),
VendorGuid,
sizeof (EFI_GUID)
);
//
// There will be pad bytes after Data, the NextVariable->NameSize and
// NextVariable->DataSize should not include pad size so that variable
// service can get actual size in GetVariable.
//
SetNameSizeOfVariable (NextVariable, VarNameSize);
SetDataSizeOfVariable (NextVariable, DataSize);
SetNameSizeOfVariable (NextVariable, VarNameSize, AuthFormat);
SetDataSizeOfVariable (NextVariable, DataSize, AuthFormat);
//
// The actual size of the variable that stores in storage should
@ -2036,7 +2076,7 @@ UpdateVariable (
TRUE,
Fvb,
mVariableModuleGlobal->NonVolatileLastVariableOffset,
(UINT32) GetVariableHeaderSize (),
(UINT32) GetVariableHeaderSize (AuthFormat),
(UINT8 *) NextVariable
);
@ -2069,9 +2109,9 @@ UpdateVariable (
FALSE,
TRUE,
Fvb,
mVariableModuleGlobal->NonVolatileLastVariableOffset + GetVariableHeaderSize (),
(UINT32) (VarSize - GetVariableHeaderSize ()),
(UINT8 *) NextVariable + GetVariableHeaderSize ()
mVariableModuleGlobal->NonVolatileLastVariableOffset + GetVariableHeaderSize (AuthFormat),
(UINT32) (VarSize - GetVariableHeaderSize (AuthFormat)),
(UINT8 *) NextVariable + GetVariableHeaderSize (AuthFormat)
);
if (EFI_ERROR (Status)) {
@ -2291,7 +2331,7 @@ VariableServiceGetVariable (
//
// Get data size
//
VarDataSize = DataSizeOfVariable (Variable.CurrPtr);
VarDataSize = DataSizeOfVariable (Variable.CurrPtr, mVariableModuleGlobal->VariableGlobal.AuthFormat);
ASSERT (VarDataSize != 0);
if (*DataSize >= VarDataSize) {
@ -2300,7 +2340,7 @@ VariableServiceGetVariable (
goto Done;
}
CopyMem (Data, GetVariableDataPtr (Variable.CurrPtr), VarDataSize);
CopyMem (Data, GetVariableDataPtr (Variable.CurrPtr, mVariableModuleGlobal->VariableGlobal.AuthFormat), VarDataSize);
if (Attributes != NULL) {
*Attributes = Variable.CurrPtr->Attributes;
}
@ -2357,6 +2397,7 @@ VariableServiceGetNextVariableName (
EFI_STATUS Status;
UINTN MaxLen;
UINTN VarNameSize;
BOOLEAN AuthFormat;
VARIABLE_HEADER *VariablePtr;
VARIABLE_STORE_HEADER *VariableStoreHeader[VariableStoreTypeMax];
@ -2364,6 +2405,8 @@ VariableServiceGetNextVariableName (
return EFI_INVALID_PARAMETER;
}
AuthFormat = mVariableModuleGlobal->VariableGlobal.AuthFormat;
//
// Calculate the possible maximum length of name string, including the Null terminator.
//
@ -2387,13 +2430,27 @@ VariableServiceGetNextVariableName (
VariableStoreHeader[VariableStoreTypeHob] = (VARIABLE_STORE_HEADER *) (UINTN) mVariableModuleGlobal->VariableGlobal.HobVariableBase;
VariableStoreHeader[VariableStoreTypeNv] = mNvVariableCache;
Status = VariableServiceGetNextVariableInternal (VariableName, VendorGuid, VariableStoreHeader, &VariablePtr);
Status = VariableServiceGetNextVariableInternal (
VariableName,
VendorGuid,
VariableStoreHeader,
&VariablePtr,
AuthFormat
);
if (!EFI_ERROR (Status)) {
VarNameSize = NameSizeOfVariable (VariablePtr);
VarNameSize = NameSizeOfVariable (VariablePtr, AuthFormat);
ASSERT (VarNameSize != 0);
if (VarNameSize <= *VariableNameSize) {
CopyMem (VariableName, GetVariableNamePtr (VariablePtr), VarNameSize);
CopyMem (VendorGuid, GetVendorGuidPtr (VariablePtr), sizeof (EFI_GUID));
CopyMem (
VariableName,
GetVariableNamePtr (VariablePtr, AuthFormat),
VarNameSize
);
CopyMem (
VendorGuid,
GetVendorGuidPtr (VariablePtr, AuthFormat),
sizeof (EFI_GUID)
);
Status = EFI_SUCCESS;
} else {
Status = EFI_BUFFER_TOO_SMALL;
@ -2446,6 +2503,9 @@ VariableServiceSetVariable (
VARIABLE_HEADER *NextVariable;
EFI_PHYSICAL_ADDRESS Point;
UINTN PayloadSize;
BOOLEAN AuthFormat;
AuthFormat = mVariableModuleGlobal->VariableGlobal.AuthFormat;
//
// Check input parameters.
@ -2544,7 +2604,8 @@ VariableServiceSetVariable (
// bytes for HwErrRec#### variable.
//
if ((Attributes & EFI_VARIABLE_HARDWARE_ERROR_RECORD) == EFI_VARIABLE_HARDWARE_ERROR_RECORD) {
if (StrSize (VariableName) + PayloadSize > PcdGet32 (PcdMaxHardwareErrorVariableSize) - GetVariableHeaderSize ()) {
if (StrSize (VariableName) + PayloadSize >
PcdGet32 (PcdMaxHardwareErrorVariableSize) - GetVariableHeaderSize (AuthFormat)) {
return EFI_INVALID_PARAMETER;
}
} else {
@ -2553,7 +2614,9 @@ VariableServiceSetVariable (
// the DataSize is limited to maximum size of Max(Auth|Volatile)VariableSize bytes.
//
if ((Attributes & VARIABLE_ATTRIBUTE_AT_AW) != 0) {
if (StrSize (VariableName) + PayloadSize > mVariableModuleGlobal->MaxAuthVariableSize - GetVariableHeaderSize ()) {
if (StrSize (VariableName) + PayloadSize >
mVariableModuleGlobal->MaxAuthVariableSize -
GetVariableHeaderSize (AuthFormat)) {
DEBUG ((DEBUG_ERROR,
"%a: Failed to set variable '%s' with Guid %g\n",
__FUNCTION__, VariableName, VendorGuid));
@ -2562,12 +2625,13 @@ VariableServiceSetVariable (
"MaxAuthVariableSize(0x%x) - HeaderSize(0x%x)\n",
StrSize (VariableName), PayloadSize,
mVariableModuleGlobal->MaxAuthVariableSize,
GetVariableHeaderSize ()
GetVariableHeaderSize (AuthFormat)
));
return EFI_INVALID_PARAMETER;
}
} else if ((Attributes & EFI_VARIABLE_NON_VOLATILE) != 0) {
if (StrSize (VariableName) + PayloadSize > mVariableModuleGlobal->MaxVariableSize - GetVariableHeaderSize ()) {
if (StrSize (VariableName) + PayloadSize >
mVariableModuleGlobal->MaxVariableSize - GetVariableHeaderSize (AuthFormat)) {
DEBUG ((DEBUG_ERROR,
"%a: Failed to set variable '%s' with Guid %g\n",
__FUNCTION__, VariableName, VendorGuid));
@ -2576,12 +2640,13 @@ VariableServiceSetVariable (
"MaxVariableSize(0x%x) - HeaderSize(0x%x)\n",
StrSize (VariableName), PayloadSize,
mVariableModuleGlobal->MaxVariableSize,
GetVariableHeaderSize ()
GetVariableHeaderSize (AuthFormat)
));
return EFI_INVALID_PARAMETER;
}
} else {
if (StrSize (VariableName) + PayloadSize > mVariableModuleGlobal->MaxVolatileVariableSize - GetVariableHeaderSize ()) {
if (StrSize (VariableName) + PayloadSize >
mVariableModuleGlobal->MaxVolatileVariableSize - GetVariableHeaderSize (AuthFormat)) {
DEBUG ((DEBUG_ERROR,
"%a: Failed to set variable '%s' with Guid %g\n",
__FUNCTION__, VariableName, VendorGuid));
@ -2590,7 +2655,7 @@ VariableServiceSetVariable (
"MaxVolatileVariableSize(0x%x) - HeaderSize(0x%x)\n",
StrSize (VariableName), PayloadSize,
mVariableModuleGlobal->MaxVolatileVariableSize,
GetVariableHeaderSize ()
GetVariableHeaderSize (AuthFormat)
));
return EFI_INVALID_PARAMETER;
}
@ -2629,7 +2694,7 @@ VariableServiceSetVariable (
//
NextVariable = GetStartPointer ((VARIABLE_STORE_HEADER *) (UINTN) Point);
while (IsValidVariableHeader (NextVariable, GetEndPointer ((VARIABLE_STORE_HEADER *) (UINTN) Point))) {
NextVariable = GetNextVariablePtr (NextVariable);
NextVariable = GetNextVariablePtr (NextVariable, AuthFormat);
}
mVariableModuleGlobal->NonVolatileLastVariableOffset = (UINTN) NextVariable - (UINTN) Point;
}
@ -2754,7 +2819,8 @@ VariableServiceQueryVariableInfoInternal (
//
if ((Attributes & (EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_HARDWARE_ERROR_RECORD)) == (EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_HARDWARE_ERROR_RECORD)) {
*MaximumVariableStorageSize = PcdGet32 (PcdHwErrStorageSize);
*MaximumVariableSize = PcdGet32 (PcdMaxHardwareErrorVariableSize) - GetVariableHeaderSize ();
*MaximumVariableSize = PcdGet32 (PcdMaxHardwareErrorVariableSize) -
GetVariableHeaderSize (mVariableModuleGlobal->VariableGlobal.AuthFormat);
} else {
if ((Attributes & EFI_VARIABLE_NON_VOLATILE) != 0) {
if (AtRuntime ()) {
@ -2768,11 +2834,14 @@ VariableServiceQueryVariableInfoInternal (
// Let *MaximumVariableSize be Max(Auth|Volatile)VariableSize with the exception of the variable header size.
//
if ((Attributes & VARIABLE_ATTRIBUTE_AT_AW) != 0) {
*MaximumVariableSize = mVariableModuleGlobal->MaxAuthVariableSize - GetVariableHeaderSize ();
*MaximumVariableSize = mVariableModuleGlobal->MaxAuthVariableSize -
GetVariableHeaderSize (mVariableModuleGlobal->VariableGlobal.AuthFormat);
} else if ((Attributes & EFI_VARIABLE_NON_VOLATILE) != 0) {
*MaximumVariableSize = mVariableModuleGlobal->MaxVariableSize - GetVariableHeaderSize ();
*MaximumVariableSize = mVariableModuleGlobal->MaxVariableSize -
GetVariableHeaderSize (mVariableModuleGlobal->VariableGlobal.AuthFormat);
} else {
*MaximumVariableSize = mVariableModuleGlobal->MaxVolatileVariableSize - GetVariableHeaderSize ();
*MaximumVariableSize = mVariableModuleGlobal->MaxVolatileVariableSize -
GetVariableHeaderSize (mVariableModuleGlobal->VariableGlobal.AuthFormat);
}
}
@ -2785,7 +2854,7 @@ VariableServiceQueryVariableInfoInternal (
// Now walk through the related variable store.
//
while (IsValidVariableHeader (Variable, GetEndPointer (VariableStoreHeader))) {
NextVariable = GetNextVariablePtr (Variable);
NextVariable = GetNextVariablePtr (Variable, mVariableModuleGlobal->VariableGlobal.AuthFormat);
VariableSize = (UINT64) (UINTN) NextVariable - (UINT64) (UINTN) Variable;
if (AtRuntime ()) {
@ -2820,10 +2889,11 @@ VariableServiceQueryVariableInfoInternal (
VariablePtrTrack.StartPtr = GetStartPointer (VariableStoreHeader);
VariablePtrTrack.EndPtr = GetEndPointer (VariableStoreHeader);
Status = FindVariableEx (
GetVariableNamePtr (Variable),
GetVendorGuidPtr (Variable),
GetVariableNamePtr (Variable, mVariableModuleGlobal->VariableGlobal.AuthFormat),
GetVendorGuidPtr (Variable, mVariableModuleGlobal->VariableGlobal.AuthFormat),
FALSE,
&VariablePtrTrack
&VariablePtrTrack,
mVariableModuleGlobal->VariableGlobal.AuthFormat
);
if (!EFI_ERROR (Status) && VariablePtrTrack.CurrPtr->State != VAR_ADDED) {
if ((Variable->Attributes & EFI_VARIABLE_HARDWARE_ERROR_RECORD) == EFI_VARIABLE_HARDWARE_ERROR_RECORD) {
@ -2851,10 +2921,13 @@ VariableServiceQueryVariableInfoInternal (
}
}
if (*RemainingVariableStorageSize < GetVariableHeaderSize ()) {
if (*RemainingVariableStorageSize < GetVariableHeaderSize (mVariableModuleGlobal->VariableGlobal.AuthFormat)) {
*MaximumVariableSize = 0;
} else if ((*RemainingVariableStorageSize - GetVariableHeaderSize ()) < *MaximumVariableSize) {
*MaximumVariableSize = *RemainingVariableStorageSize - GetVariableHeaderSize ();
} else if ((*RemainingVariableStorageSize - GetVariableHeaderSize (mVariableModuleGlobal->VariableGlobal.AuthFormat)) <
*MaximumVariableSize
) {
*MaximumVariableSize = *RemainingVariableStorageSize -
GetVariableHeaderSize (mVariableModuleGlobal->VariableGlobal.AuthFormat);
}
return EFI_SUCCESS;
@ -3331,7 +3404,7 @@ InitNonVolatileVariableStore (
//
Variable = GetStartPointer (mNvVariableCache);
while (IsValidVariableHeader (Variable, GetEndPointer (mNvVariableCache))) {
NextVariable = GetNextVariablePtr (Variable);
NextVariable = GetNextVariablePtr (Variable, mVariableModuleGlobal->VariableGlobal.AuthFormat);
VariableSize = (UINTN) NextVariable - (UINTN) Variable;
if ((Variable->Attributes & (EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_HARDWARE_ERROR_RECORD)) == (EFI_VARIABLE_NON_VOLATILE | EFI_VARIABLE_HARDWARE_ERROR_RECORD)) {
mVariableModuleGlobal->HwErrVariableTotalSize += VariableSize;
@ -3365,8 +3438,10 @@ FlushHobVariableToFlash (
VOID *VariableData;
VARIABLE_POINTER_TRACK VariablePtrTrack;
BOOLEAN ErrorFlag;
BOOLEAN AuthFormat;
ErrorFlag = FALSE;
AuthFormat = mVariableModuleGlobal->VariableGlobal.AuthFormat;
//
// Flush the HOB variable to flash.
@ -3379,7 +3454,7 @@ FlushHobVariableToFlash (
mVariableModuleGlobal->VariableGlobal.HobVariableBase = 0;
for ( Variable = GetStartPointer (VariableStoreHeader)
; IsValidVariableHeader (Variable, GetEndPointer (VariableStoreHeader))
; Variable = GetNextVariablePtr (Variable)
; Variable = GetNextVariablePtr (Variable, AuthFormat)
) {
if (Variable->State != VAR_ADDED) {
//
@ -3389,22 +3464,33 @@ FlushHobVariableToFlash (
}
ASSERT ((Variable->Attributes & EFI_VARIABLE_NON_VOLATILE) != 0);
if (VendorGuid == NULL || VariableName == NULL ||
!CompareGuid (VendorGuid, GetVendorGuidPtr (Variable)) ||
StrCmp (VariableName, GetVariableNamePtr (Variable)) != 0) {
VariableData = GetVariableDataPtr (Variable);
FindVariable (GetVariableNamePtr (Variable), GetVendorGuidPtr (Variable), &VariablePtrTrack, &mVariableModuleGlobal->VariableGlobal, FALSE);
!CompareGuid (VendorGuid, GetVendorGuidPtr (Variable, AuthFormat)) ||
StrCmp (VariableName, GetVariableNamePtr (Variable, AuthFormat)) != 0) {
VariableData = GetVariableDataPtr (Variable, AuthFormat);
FindVariable (
GetVariableNamePtr (Variable, AuthFormat),
GetVendorGuidPtr (Variable, AuthFormat),
&VariablePtrTrack,
&mVariableModuleGlobal->VariableGlobal, FALSE
);
Status = UpdateVariable (
GetVariableNamePtr (Variable),
GetVendorGuidPtr (Variable),
GetVariableNamePtr (Variable, AuthFormat),
GetVendorGuidPtr (Variable, AuthFormat),
VariableData,
DataSizeOfVariable (Variable),
DataSizeOfVariable (Variable, AuthFormat),
Variable->Attributes,
0,
0,
&VariablePtrTrack,
NULL
);
DEBUG ((EFI_D_INFO, "Variable driver flush the HOB variable to flash: %g %s %r\n", GetVendorGuidPtr (Variable), GetVariableNamePtr (Variable), Status));
DEBUG ((
DEBUG_INFO,
"Variable driver flush the HOB variable to flash: %g %s %r\n",
GetVendorGuidPtr (Variable, AuthFormat),
GetVariableNamePtr (Variable, AuthFormat),
Status
));
} else {
//
// The updated or deleted variable is matched with this HOB variable.
@ -3418,7 +3504,12 @@ FlushHobVariableToFlash (
// If set variable successful, or the updated or deleted variable is matched with the HOB variable,
// set the HOB variable to DELETED state in local.
//
DEBUG ((EFI_D_INFO, "Variable driver set the HOB variable to DELETED state in local: %g %s\n", GetVendorGuidPtr (Variable), GetVariableNamePtr (Variable)));
DEBUG ((
DEBUG_INFO,
"Variable driver set the HOB variable to DELETED state in local: %g %s\n",
GetVendorGuidPtr (Variable, AuthFormat),
GetVariableNamePtr (Variable, AuthFormat)
));
Variable->State &= VAR_DELETED;
} else {
ErrorFlag = TRUE;
@ -3495,7 +3586,8 @@ VariableWriteServiceInitialize (
// Authenticated variable initialize.
//
mAuthContextIn.StructSize = sizeof (AUTH_VAR_LIB_CONTEXT_IN);
mAuthContextIn.MaxAuthVariableSize = mVariableModuleGlobal->MaxAuthVariableSize - GetVariableHeaderSize ();
mAuthContextIn.MaxAuthVariableSize = mVariableModuleGlobal->MaxAuthVariableSize -
GetVariableHeaderSize (mVariableModuleGlobal->VariableGlobal.AuthFormat);
Status = AuthVariableLibInitialize (&mAuthContextIn, &mAuthContextOut);
if (!EFI_ERROR (Status)) {
DEBUG ((EFI_D_INFO, "Variable driver will work with auth variable support!\n"));
@ -3574,7 +3666,7 @@ ConvertNormalVarStorageToAuthVarStorage (
AuthVarStroageSize += StartPtr->NameSize + GET_PAD_SIZE (StartPtr->NameSize);
AuthVarStroageSize += StartPtr->DataSize + GET_PAD_SIZE (StartPtr->DataSize);
}
StartPtr = GetNextVariablePtr (StartPtr);
StartPtr = GetNextVariablePtr (StartPtr, mVariableModuleGlobal->VariableGlobal.AuthFormat);
}
//
@ -3608,18 +3700,22 @@ ConvertNormalVarStorageToAuthVarStorage (
// Copy Variable Name
//
NextPtr = (UINT8 *) (AuthStartPtr + 1);
CopyMem (NextPtr, GetVariableNamePtr (StartPtr), AuthStartPtr->NameSize);
CopyMem (
NextPtr,
GetVariableNamePtr (StartPtr, mVariableModuleGlobal->VariableGlobal.AuthFormat),
AuthStartPtr->NameSize
);
//
// Copy Variable Data
//
NextPtr = NextPtr + AuthStartPtr->NameSize + GET_PAD_SIZE (AuthStartPtr->NameSize);
CopyMem (NextPtr, GetVariableDataPtr (StartPtr), AuthStartPtr->DataSize);
CopyMem (NextPtr, GetVariableDataPtr (StartPtr, mVariableModuleGlobal->VariableGlobal.AuthFormat), AuthStartPtr->DataSize);
//
// Go to next variable
//
AuthStartPtr = (AUTHENTICATED_VARIABLE_HEADER *) (NextPtr + AuthStartPtr->DataSize + GET_PAD_SIZE (AuthStartPtr->DataSize));
}
StartPtr = GetNextVariablePtr (StartPtr);
StartPtr = GetNextVariablePtr (StartPtr, mVariableModuleGlobal->VariableGlobal.AuthFormat);
}
//
// Update Auth Storage Header

15
MdeModulePkg/Universal/Variable/RuntimeDxe/VariableExLib.c
View File

@ -56,8 +56,8 @@ VariableExLibFindVariable (
return Status;
}
AuthVariableInfo->DataSize = DataSizeOfVariable (Variable.CurrPtr);
AuthVariableInfo->Data = GetVariableDataPtr (Variable.CurrPtr);
AuthVariableInfo->DataSize = DataSizeOfVariable (Variable.CurrPtr, mVariableModuleGlobal->VariableGlobal.AuthFormat);
AuthVariableInfo->Data = GetVariableDataPtr (Variable.CurrPtr, mVariableModuleGlobal->VariableGlobal.AuthFormat);
AuthVariableInfo->Attributes = Variable.CurrPtr->Attributes;
if (mVariableModuleGlobal->VariableGlobal.AuthFormat) {
AuthVariable = (AUTHENTICATED_VARIABLE_HEADER *) Variable.CurrPtr;
@ -108,7 +108,8 @@ VariableExLibFindNextVariable (
VariableName,
VendorGuid,
VariableStoreHeader,
&VariablePtr
&VariablePtr,
mVariableModuleGlobal->VariableGlobal.AuthFormat
);
if (EFI_ERROR (Status)) {
AuthVariableInfo->VariableName = NULL;
@ -122,10 +123,10 @@ VariableExLibFindNextVariable (
return Status;
}
AuthVariableInfo->VariableName = GetVariableNamePtr (VariablePtr);
AuthVariableInfo->VendorGuid = GetVendorGuidPtr (VariablePtr);
AuthVariableInfo->DataSize = DataSizeOfVariable (VariablePtr);
AuthVariableInfo->Data = GetVariableDataPtr (VariablePtr);
AuthVariableInfo->VariableName = GetVariableNamePtr (VariablePtr, mVariableModuleGlobal->VariableGlobal.AuthFormat);
AuthVariableInfo->VendorGuid = GetVendorGuidPtr (VariablePtr, mVariableModuleGlobal->VariableGlobal.AuthFormat);
AuthVariableInfo->DataSize = DataSizeOfVariable (VariablePtr, mVariableModuleGlobal->VariableGlobal.AuthFormat);
AuthVariableInfo->Data = GetVariableDataPtr (VariablePtr, mVariableModuleGlobal->VariableGlobal.AuthFormat);
AuthVariableInfo->Attributes = VariablePtr->Attributes;
if (mVariableModuleGlobal->VariableGlobal.AuthFormat) {
AuthVariablePtr = (AUTHENTICATED_VARIABLE_HEADER *) VariablePtr;

146
MdeModulePkg/Universal/Variable/RuntimeDxe/VariableParsing.c
View File

@ -78,17 +78,20 @@ GetVariableStoreStatus (
/**
This code gets the size of variable header.
@param[in] AuthFormat TRUE indicates authenticated variables are used.
FALSE indicates authenticated variables are not used.
@return Size of variable header in bytes in type UINTN.
**/
UINTN
GetVariableHeaderSize (
VOID
IN BOOLEAN AuthFormat
)
{
UINTN Value;
if (mVariableModuleGlobal->VariableGlobal.AuthFormat) {
if (AuthFormat) {
Value = sizeof (AUTHENTICATED_VARIABLE_HEADER);
} else {
Value = sizeof (VARIABLE_HEADER);
@ -101,20 +104,23 @@ GetVariableHeaderSize (
This code gets the size of name of variable.
@param Variable Pointer to the Variable Header.
@param[in] Variable Pointer to the variable header.
@param[in] AuthFormat TRUE indicates authenticated variables are used.
FALSE indicates authenticated variables are not used.
@return UINTN Size of variable in bytes.
**/
UINTN
NameSizeOfVariable (
IN VARIABLE_HEADER *Variable
IN VARIABLE_HEADER *Variable,
IN BOOLEAN AuthFormat
)
{
AUTHENTICATED_VARIABLE_HEADER *AuthVariable;
AuthVariable = (AUTHENTICATED_VARIABLE_HEADER *) Variable;
if (mVariableModuleGlobal->VariableGlobal.AuthFormat) {
if (AuthFormat) {
if (AuthVariable->State == (UINT8) (-1) ||
AuthVariable->DataSize == (UINT32) (-1) ||
AuthVariable->NameSize == (UINT32) (-1) ||
@ -136,20 +142,23 @@ NameSizeOfVariable (
/**
This code sets the size of name of variable.
@param[in] Variable Pointer to the Variable Header.
@param[in] NameSize Name size to set.
@param[in] Variable Pointer to the Variable Header.
@param[in] NameSize Name size to set.
@param[in] AuthFormat TRUE indicates authenticated variables are used.
FALSE indicates authenticated variables are not used.
**/
VOID
SetNameSizeOfVariable (
IN VARIABLE_HEADER *Variable,
IN UINTN NameSize
IN UINTN NameSize,
IN BOOLEAN AuthFormat
)
{
AUTHENTICATED_VARIABLE_HEADER *AuthVariable;
AuthVariable = (AUTHENTICATED_VARIABLE_HEADER *) Variable;
if (mVariableModuleGlobal->VariableGlobal.AuthFormat) {
if (AuthFormat) {
AuthVariable->NameSize = (UINT32) NameSize;
} else {
Variable->NameSize = (UINT32) NameSize;
@ -160,20 +169,23 @@ SetNameSizeOfVariable (
This code gets the size of variable data.
@param Variable Pointer to the Variable Header.
@param[in] Variable Pointer to the Variable Header.
@param[in] AuthFormat TRUE indicates authenticated variables are used.
FALSE indicates authenticated variables are not used.
@return Size of variable in bytes.
**/
UINTN
DataSizeOfVariable (
IN VARIABLE_HEADER *Variable
IN VARIABLE_HEADER *Variable,
IN BOOLEAN AuthFormat
)
{
AUTHENTICATED_VARIABLE_HEADER *AuthVariable;
AuthVariable = (AUTHENTICATED_VARIABLE_HEADER *) Variable;
if (mVariableModuleGlobal->VariableGlobal.AuthFormat) {
if (AuthFormat) {
if (AuthVariable->State == (UINT8) (-1) ||
AuthVariable->DataSize == (UINT32) (-1) ||
AuthVariable->NameSize == (UINT32) (-1) ||
@ -197,18 +209,21 @@ DataSizeOfVariable (
@param[in] Variable Pointer to the Variable Header.
@param[in] DataSize Data size to set.
@param[in] AuthFormat TRUE indicates authenticated variables are used.
FALSE indicates authenticated variables are not used.
**/
VOID
SetDataSizeOfVariable (
IN VARIABLE_HEADER *Variable,
IN UINTN DataSize
IN VARIABLE_HEADER *Variable,
IN UINTN DataSize,
IN BOOLEAN AuthFormat
)
{
AUTHENTICATED_VARIABLE_HEADER *AuthVariable;
AuthVariable = (AUTHENTICATED_VARIABLE_HEADER *) Variable;
if (mVariableModuleGlobal->VariableGlobal.AuthFormat) {
if (AuthFormat) {
AuthVariable->DataSize = (UINT32) DataSize;
} else {
Variable->DataSize = (UINT32) DataSize;
@ -219,36 +234,42 @@ SetDataSizeOfVariable (
This code gets the pointer to the variable name.
@param Variable Pointer to the Variable Header.
@param[in] Variable Pointer to the Variable Header.
@param[in] AuthFormat TRUE indicates authenticated variables are used.
FALSE indicates authenticated variables are not used.
@return Pointer to Variable Name which is Unicode encoding.
**/
CHAR16 *
GetVariableNamePtr (
IN VARIABLE_HEADER *Variable
IN VARIABLE_HEADER *Variable,
IN BOOLEAN AuthFormat
)
{
return (CHAR16 *) ((UINTN) Variable + GetVariableHeaderSize ());
return (CHAR16 *) ((UINTN) Variable + GetVariableHeaderSize (AuthFormat));
}
/**
This code gets the pointer to the variable guid.
@param Variable Pointer to the Variable Header.
@param[in] Variable Pointer to the Variable Header.
@param[in] AuthFormat TRUE indicates authenticated variables are used.
FALSE indicates authenticated variables are not used.
@return A EFI_GUID* pointer to Vendor Guid.
**/
EFI_GUID *
GetVendorGuidPtr (
IN VARIABLE_HEADER *Variable
IN VARIABLE_HEADER *Variable,
IN BOOLEAN AuthFormat
)
{
AUTHENTICATED_VARIABLE_HEADER *AuthVariable;
AuthVariable = (AUTHENTICATED_VARIABLE_HEADER *) Variable;
if (mVariableModuleGlobal->VariableGlobal.AuthFormat) {
if (AuthFormat) {
return &AuthVariable->VendorGuid;
} else {
return &Variable->VendorGuid;
@ -259,14 +280,17 @@ GetVendorGuidPtr (
This code gets the pointer to the variable data.
@param Variable Pointer to the Variable Header.
@param[in] Variable Pointer to the Variable Header.
@param[in] AuthFormat TRUE indicates authenticated variables are used.
FALSE indicates authenticated variables are not used.
@return Pointer to Variable Data.
**/
UINT8 *
GetVariableDataPtr (
IN VARIABLE_HEADER *Variable
IN VARIABLE_HEADER *Variable,
IN BOOLEAN AuthFormat
)
{
UINTN Value;
@ -274,9 +298,9 @@ GetVariableDataPtr (
//
// Be careful about pad size for alignment.
//
Value = (UINTN) GetVariableNamePtr (Variable);
Value += NameSizeOfVariable (Variable);
Value += GET_PAD_SIZE (NameSizeOfVariable (Variable));
Value = (UINTN) GetVariableNamePtr (Variable, AuthFormat);
Value += NameSizeOfVariable (Variable, AuthFormat);
Value += GET_PAD_SIZE (NameSizeOfVariable (Variable, AuthFormat));
return (UINT8 *) Value;
}
@ -284,14 +308,17 @@ GetVariableDataPtr (
/**
This code gets the variable data offset related to variable header.
@param Variable Pointer to the Variable Header.
@param[in] Variable Pointer to the Variable Header.
@param[in] AuthFormat TRUE indicates authenticated variables are used.
FALSE indicates authenticated variables are not used.
@return Variable Data offset.
**/
UINTN
GetVariableDataOffset (
IN VARIABLE_HEADER *Variable
IN VARIABLE_HEADER *Variable,
IN BOOLEAN AuthFormat
)
{
UINTN Value;
@ -299,9 +326,9 @@ GetVariableDataOffset (
//
// Be careful about pad size for alignment
//
Value = GetVariableHeaderSize ();
Value += NameSizeOfVariable (Variable);
Value += GET_PAD_SIZE (NameSizeOfVariable (Variable));
Value = GetVariableHeaderSize (AuthFormat);
Value += NameSizeOfVariable (Variable, AuthFormat);
Value += GET_PAD_SIZE (NameSizeOfVariable (Variable, AuthFormat));
return Value;
}
@ -310,21 +337,24 @@ GetVariableDataOffset (
This code gets the pointer to the next variable header.
@param Variable Pointer to the Variable Header.
@param[in] Variable Pointer to the Variable Header.
@param[in] AuthFormat TRUE indicates authenticated variables are used.
FALSE indicates authenticated variables are not used.
@return Pointer to next variable header.
**/
VARIABLE_HEADER *
GetNextVariablePtr (
IN VARIABLE_HEADER *Variable
IN VARIABLE_HEADER *Variable,
IN BOOLEAN AuthFormat
)
{
UINTN Value;
Value = (UINTN) GetVariableDataPtr (Variable);
Value += DataSizeOfVariable (Variable);
Value += GET_PAD_SIZE (DataSizeOfVariable (Variable));
Value = (UINTN) GetVariableDataPtr (Variable, AuthFormat);
Value += DataSizeOfVariable (Variable, AuthFormat);
Value += GET_PAD_SIZE (DataSizeOfVariable (Variable, AuthFormat));
//
// Be careful about pad size for alignment.
@ -415,6 +445,8 @@ VariableCompareTimeStampInternal (
@param[in] IgnoreRtCheck Ignore EFI_VARIABLE_RUNTIME_ACCESS attribute
check at runtime when searching variable.
@param[in, out] PtrTrack Variable Track Pointer structure that contains Variable Information.
@param[in] AuthFormat TRUE indicates authenticated variables are used.
FALSE indicates authenticated variables are not used.
@retval EFI_SUCCESS Variable found successfully
@retval EFI_NOT_FOUND Variable not found
@ -424,7 +456,8 @@ FindVariableEx (
IN CHAR16 *VariableName,
IN EFI_GUID *VendorGuid,
IN BOOLEAN IgnoreRtCheck,
IN OUT VARIABLE_POINTER_TRACK *PtrTrack
IN OUT VARIABLE_POINTER_TRACK *PtrTrack,
IN BOOLEAN AuthFormat
)
{
VARIABLE_HEADER *InDeletedVariable;
@ -439,7 +472,7 @@ FindVariableEx (
for ( PtrTrack->CurrPtr = PtrTrack->StartPtr
; IsValidVariableHeader (PtrTrack->CurrPtr, PtrTrack->EndPtr)
; PtrTrack->CurrPtr = GetNextVariablePtr (PtrTrack->CurrPtr)
; PtrTrack->CurrPtr = GetNextVariablePtr (PtrTrack->CurrPtr, AuthFormat)
) {
if (PtrTrack->CurrPtr->State == VAR_ADDED ||
PtrTrack->CurrPtr->State == (VAR_IN_DELETED_TRANSITION & VAR_ADDED)
@ -453,11 +486,11 @@ FindVariableEx (
return EFI_SUCCESS;
}
} else {
if (CompareGuid (VendorGuid, GetVendorGuidPtr (PtrTrack->CurrPtr))) {
Point = (VOID *) GetVariableNamePtr (PtrTrack->CurrPtr);
if (CompareGuid (VendorGuid, GetVendorGuidPtr (PtrTrack->CurrPtr, AuthFormat))) {
Point = (VOID *) GetVariableNamePtr (PtrTrack->CurrPtr, AuthFormat);
ASSERT (NameSizeOfVariable (PtrTrack->CurrPtr) != 0);
if (CompareMem (VariableName, Point, NameSizeOfVariable (PtrTrack->CurrPtr)) == 0) {
ASSERT (NameSizeOfVariable (PtrTrack->CurrPtr, AuthFormat) != 0);
if (CompareMem (VariableName, Point, NameSizeOfVariable (PtrTrack->CurrPtr, AuthFormat)) == 0) {
if (PtrTrack->CurrPtr->State == (VAR_IN_DELETED_TRANSITION & VAR_ADDED)) {
InDeletedVariable = PtrTrack->CurrPtr;
} else {
@ -486,6 +519,8 @@ FindVariableEx (
@param[in] VariableStoreList A list of variable stores that should be used to get the next variable.
The maximum number of entries is the max value of VARIABLE_STORE_TYPE.
@param[out] VariablePtr Pointer to variable header address.
@param[in] AuthFormat TRUE indicates authenticated variables are used.
FALSE indicates authenticated variables are not used.
@retval EFI_SUCCESS The function completed successfully.
@retval EFI_NOT_FOUND The next variable was not found.
@ -500,7 +535,8 @@ VariableServiceGetNextVariableInternal (
IN CHAR16 *VariableName,
IN EFI_GUID *VendorGuid,
IN VARIABLE_STORE_HEADER **VariableStoreList,
OUT VARIABLE_HEADER **VariablePtr
OUT VARIABLE_HEADER **VariablePtr,
IN BOOLEAN AuthFormat
)
{
EFI_STATUS Status;
@ -525,7 +561,7 @@ VariableServiceGetNextVariableInternal (
Variable.EndPtr = GetEndPointer (VariableStoreList[StoreType]);
Variable.Volatile = (BOOLEAN) (StoreType == VariableStoreTypeVolatile);
Status = FindVariableEx (VariableName, VendorGuid, FALSE, &Variable);
Status = FindVariableEx (VariableName, VendorGuid, FALSE, &Variable, AuthFormat);
if (!EFI_ERROR (Status)) {
break;
}
@ -552,7 +588,7 @@ VariableServiceGetNextVariableInternal (
//
// If variable name is not empty, get next variable.
//
Variable.CurrPtr = GetNextVariablePtr (Variable.CurrPtr);
Variable.CurrPtr = GetNextVariablePtr (Variable.CurrPtr, AuthFormat);
}
while (TRUE) {
@ -605,13 +641,14 @@ VariableServiceGetNextVariableInternal (
VariablePtrTrack.StartPtr = Variable.StartPtr;
VariablePtrTrack.EndPtr = Variable.EndPtr;
Status = FindVariableEx (
GetVariableNamePtr (Variable.CurrPtr),
GetVendorGuidPtr (Variable.CurrPtr),
GetVariableNamePtr (Variable.CurrPtr, AuthFormat),
GetVendorGuidPtr (Variable.CurrPtr, AuthFormat),
FALSE,
&VariablePtrTrack
&VariablePtrTrack,
AuthFormat
);
if (!EFI_ERROR (Status) && VariablePtrTrack.CurrPtr->State == VAR_ADDED) {
Variable.CurrPtr = GetNextVariablePtr (Variable.CurrPtr);
Variable.CurrPtr = GetNextVariablePtr (Variable.CurrPtr, AuthFormat);
continue;
}
}
@ -625,13 +662,14 @@ VariableServiceGetNextVariableInternal (
VariableInHob.StartPtr = GetStartPointer (VariableStoreList[VariableStoreTypeHob]);
VariableInHob.EndPtr = GetEndPointer (VariableStoreList[VariableStoreTypeHob]);
Status = FindVariableEx (
GetVariableNamePtr (Variable.CurrPtr),
GetVendorGuidPtr (Variable.CurrPtr),
GetVariableNamePtr (Variable.CurrPtr, AuthFormat),
GetVendorGuidPtr (Variable.CurrPtr, AuthFormat),
FALSE,
&VariableInHob
&VariableInHob,
AuthFormat
);
if (!EFI_ERROR (Status)) {
Variable.CurrPtr = GetNextVariablePtr (Variable.CurrPtr);
Variable.CurrPtr = GetNextVariablePtr (Variable.CurrPtr, AuthFormat);
continue;
}
}
@ -642,7 +680,7 @@ VariableServiceGetNextVariableInternal (
}
}
Variable.CurrPtr = GetNextVariablePtr (Variable.CurrPtr);
Variable.CurrPtr = GetNextVariablePtr (Variable.CurrPtr, AuthFormat);
}
Done:

82
MdeModulePkg/Universal/Variable/RuntimeDxe/VariableParsing.h
View File

@ -49,53 +49,65 @@ GetVariableStoreStatus (
/**
This code gets the size of variable header.
@param[in] AuthFormat TRUE indicates authenticated variables are used.
FALSE indicates authenticated variables are not used.
@return Size of variable header in bytes in type UINTN.
**/
UINTN
GetVariableHeaderSize (
VOID
IN BOOLEAN AuthFormat
);
/**
This code gets the size of name of variable.
@param Variable Pointer to the Variable Header.
@param[in] Variable Pointer to the variable header.
@param[in] AuthFormat TRUE indicates authenticated variables are used.
FALSE indicates authenticated variables are not used.
@return UINTN Size of variable in bytes.
**/
UINTN
NameSizeOfVariable (
IN VARIABLE_HEADER *Variable
IN VARIABLE_HEADER *Variable,
IN BOOLEAN AuthFormat
);
/**
This code sets the size of name of variable.
@param[in] Variable Pointer to the Variable Header.
@param[in] NameSize Name size to set.
@param[in] Variable Pointer to the Variable Header.
@param[in] NameSize Name size to set.
@param[in] AuthFormat TRUE indicates authenticated variables are used.
FALSE indicates authenticated variables are not used.
**/
VOID
SetNameSizeOfVariable (
IN VARIABLE_HEADER *Variable,
IN UINTN NameSize
IN UINTN NameSize,
IN BOOLEAN AuthFormat
);
/**
This code gets the size of variable data.
@param Variable Pointer to the Variable Header.
@param[in] Variable Pointer to the Variable Header.
@param[in] AuthFormat TRUE indicates authenticated variables are used.
FALSE indicates authenticated variables are not used.
@return Size of variable in bytes.
**/
UINTN
DataSizeOfVariable (
IN VARIABLE_HEADER *Variable
IN VARIABLE_HEADER *Variable,
IN BOOLEAN AuthFormat
);
/**
@ -103,80 +115,98 @@ DataSizeOfVariable (
@param[in] Variable Pointer to the Variable Header.
@param[in] DataSize Data size to set.
@param[in] AuthFormat TRUE indicates authenticated variables are used.
FALSE indicates authenticated variables are not used.
**/
VOID
SetDataSizeOfVariable (
IN VARIABLE_HEADER *Variable,
IN UINTN DataSize
IN VARIABLE_HEADER *Variable,
IN UINTN DataSize,
IN BOOLEAN AuthFormat
);
/**
This code gets the pointer to the variable name.
@param Variable Pointer to the Variable Header.
@param[in] Variable Pointer to the Variable Header.
@param[in] AuthFormat TRUE indicates authenticated variables are used.
FALSE indicates authenticated variables are not used.
@return Pointer to Variable Name which is Unicode encoding.
**/
CHAR16 *
GetVariableNamePtr (
IN VARIABLE_HEADER *Variable
IN VARIABLE_HEADER *Variable,
IN BOOLEAN AuthFormat
);
/**
This code gets the pointer to the variable guid.
@param Variable Pointer to the Variable Header.
@param[in] Variable Pointer to the Variable Header.
@param[in] AuthFormat TRUE indicates authenticated variables are used.
FALSE indicates authenticated variables are not used.
@return A EFI_GUID* pointer to Vendor Guid.
**/
EFI_GUID *
GetVendorGuidPtr (
IN VARIABLE_HEADER *Variable
IN VARIABLE_HEADER *Variable,
IN BOOLEAN AuthFormat
);
/**
This code gets the pointer to the variable data.
@param Variable Pointer to the Variable Header.
@param[in] Variable Pointer to the Variable Header.
@param[in] AuthFormat TRUE indicates authenticated variables are used.
FALSE indicates authenticated variables are not used.
@return Pointer to Variable Data.
**/
UINT8 *
GetVariableDataPtr (
IN VARIABLE_HEADER *Variable
IN VARIABLE_HEADER *Variable,
IN BOOLEAN AuthFormat
);
/**
This code gets the variable data offset related to variable header.
@param Variable Pointer to the Variable Header.
@param[in] Variable Pointer to the Variable Header.
@param[in] AuthFormat TRUE indicates authenticated variables are used.
FALSE indicates authenticated variables are not used.
@return Variable Data offset.
**/
UINTN
GetVariableDataOffset (
IN VARIABLE_HEADER *Variable
IN VARIABLE_HEADER *Variable,
IN BOOLEAN AuthFormat
);
/**
This code gets the pointer to the next variable header.
@param Variable Pointer to the Variable Header.
@param[in] Variable Pointer to the Variable Header.
@param[in] AuthFormat TRUE indicates authenticated variables are used.
FALSE indicates authenticated variables are not used.
@return Pointer to next variable header.
**/
VARIABLE_HEADER *
GetNextVariablePtr (
IN VARIABLE_HEADER *Variable
IN VARIABLE_HEADER *Variable,
IN BOOLEAN AuthFormat
);
/**
@ -235,6 +265,8 @@ VariableCompareTimeStampInternal (
@param[in] IgnoreRtCheck Ignore EFI_VARIABLE_RUNTIME_ACCESS attribute
check at runtime when searching variable.
@param[in, out] PtrTrack Variable Track Pointer structure that contains Variable Information.
@param[in] AuthFormat TRUE indicates authenticated variables are used.
FALSE indicates authenticated variables are not used.
@retval EFI_SUCCESS Variable found successfully
@retval EFI_NOT_FOUND Variable not found
@ -244,7 +276,8 @@ FindVariableEx (
IN CHAR16 *VariableName,
IN EFI_GUID *VendorGuid,
IN BOOLEAN IgnoreRtCheck,
IN OUT VARIABLE_POINTER_TRACK *PtrTrack
IN OUT VARIABLE_POINTER_TRACK *PtrTrack,
IN BOOLEAN AuthFormat
);
/**
@ -258,10 +291,12 @@ FindVariableEx (
@param[in] VariableStoreList A list of variable stores that should be used to get the next variable.
The maximum number of entries is the max value of VARIABLE_STORE_TYPE.
@param[out] VariablePtr Pointer to variable header address.
@param[in] AuthFormat TRUE indicates authenticated variables are used.
FALSE indicates authenticated variables are not used.
@retval EFI_SUCCESS The function completed successfully.
@retval EFI_NOT_FOUND The next variable was not found.
@retval EFI_INVALID_PARAMETER If VariableName is nt an empty string, while VendorGuid is NULL.
@retval EFI_INVALID_PARAMETER If VariableName is not an empty string, while VendorGuid is NULL.
@retval EFI_INVALID_PARAMETER The input values of VariableName and VendorGuid are not a name and
GUID of an existing variable.
@ -272,7 +307,8 @@ VariableServiceGetNextVariableInternal (
IN CHAR16 *VariableName,
IN EFI_GUID *VendorGuid,
IN VARIABLE_STORE_HEADER **VariableStoreList,
OUT VARIABLE_HEADER **VariablePtr
OUT VARIABLE_HEADER **VariablePtr,
IN BOOLEAN AuthFormat
);
/**

5
MdeModulePkg/Universal/Variable/RuntimeDxe/VariableSmm.c
View File

@ -975,8 +975,9 @@ MmVariableServiceInitialize (
);
ASSERT_EFI_ERROR (Status);
mVariableBufferPayloadSize = GetMaxVariableSize () +
OFFSET_OF (SMM_VARIABLE_COMMUNICATE_VAR_CHECK_VARIABLE_PROPERTY, Name) - GetVariableHeaderSize ();
mVariableBufferPayloadSize = GetMaxVariableSize () +
OFFSET_OF (SMM_VARIABLE_COMMUNICATE_VAR_CHECK_VARIABLE_PROPERTY, Name) -
GetVariableHeaderSize (mVariableModuleGlobal->VariableGlobal.AuthFormat);
Status = gMmst->MmAllocatePool (
EfiRuntimeServicesData,