diff options
Diffstat (limited to 'MdeModulePkg/Core/Dxe/SectionExtraction/CoreSectionExtraction.c')
| -rw-r--r-- | MdeModulePkg/Core/Dxe/SectionExtraction/CoreSectionExtraction.c | 118 |
1 files changed, 89 insertions, 29 deletions
diff --git a/MdeModulePkg/Core/Dxe/SectionExtraction/CoreSectionExtraction.c b/MdeModulePkg/Core/Dxe/SectionExtraction/CoreSectionExtraction.c index cc129cc008..9fe296daf8 100644 --- a/MdeModulePkg/Core/Dxe/SectionExtraction/CoreSectionExtraction.c +++ b/MdeModulePkg/Core/Dxe/SectionExtraction/CoreSectionExtraction.c @@ -27,7 +27,7 @@ 3) A support protocol is not found, and the data is not available to be read
without it. This results in EFI_PROTOCOL_ERROR.
-Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2006 - 2011, 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
@@ -269,7 +269,11 @@ IsValidSectionStream ( SectionHeader = (EFI_COMMON_SECTION_HEADER *)SectionStream;
while (TotalLength < SectionStreamLength) {
- SectionLength = SECTION_SIZE (SectionHeader);
+ if (IS_SECTION2 (SectionHeader)) {
+ SectionLength = SECTION2_SIZE (SectionHeader);
+ } else {
+ SectionLength = SECTION_SIZE (SectionHeader);
+ }
TotalLength += SectionLength;
if (TotalLength == SectionStreamLength) {
@@ -475,7 +479,11 @@ ChildIsType ( return TRUE;
}
GuidedSection = (EFI_GUID_DEFINED_SECTION * )(Stream->StreamBuffer + Child->OffsetInStream);
- return CompareGuid (&GuidedSection->SectionDefinitionGuid, SectionDefinitionGuid);
+ if (IS_SECTION2 (GuidedSection)) {
+ return CompareGuid (&(((EFI_GUID_DEFINED_SECTION2 *) GuidedSection)->SectionDefinitionGuid), SectionDefinitionGuid);
+ } else {
+ return CompareGuid (&GuidedSection->SectionDefinitionGuid, SectionDefinitionGuid);
+ }
}
/**
@@ -625,7 +633,11 @@ CreateChildNode ( UINT32 ScratchSize;
UINTN NewStreamBufferSize;
UINT32 AuthenticationStatus;
- UINT32 SectionLength;
+ VOID *CompressionSource;
+ UINT32 CompressionSourceSize;
+ UINT32 UncompressedLength;
+ UINT8 CompressionType;
+ UINT16 GuidedSectionAttributes;
CORE_SECTION_CHILD_NODE *Node;
@@ -645,7 +657,11 @@ CreateChildNode ( //
Node->Signature = CORE_SECTION_CHILD_SIGNATURE;
Node->Type = SectionHeader->Type;
- Node->Size = SECTION_SIZE (SectionHeader);
+ if (IS_SECTION2 (SectionHeader)) {
+ Node->Size = SECTION2_SIZE (SectionHeader);
+ } else {
+ Node->Size = SECTION_SIZE (SectionHeader);
+ }
Node->OffsetInStream = ChildOffset;
Node->EncapsulatedStreamHandle = NULL_STREAM_HANDLE;
Node->EncapsulationGuid = NULL;
@@ -662,23 +678,35 @@ CreateChildNode ( CompressionHeader = (EFI_COMPRESSION_SECTION *) SectionHeader;
+ if (IS_SECTION2 (CompressionHeader)) {
+ CompressionSource = (VOID *) ((UINT8 *) CompressionHeader + sizeof (EFI_COMPRESSION_SECTION2));
+ CompressionSourceSize = (UINT32) (SECTION2_SIZE (CompressionHeader) - sizeof (EFI_COMPRESSION_SECTION2));
+ UncompressedLength = ((EFI_COMPRESSION_SECTION2 *) CompressionHeader)->UncompressedLength;
+ CompressionType = ((EFI_COMPRESSION_SECTION2 *) CompressionHeader)->CompressionType;
+ } else {
+ CompressionSource = (VOID *) ((UINT8 *) CompressionHeader + sizeof (EFI_COMPRESSION_SECTION));
+ CompressionSourceSize = (UINT32) (SECTION_SIZE (CompressionHeader) - sizeof (EFI_COMPRESSION_SECTION));
+ UncompressedLength = CompressionHeader->UncompressedLength;
+ CompressionType = CompressionHeader->CompressionType;
+ }
+
//
// Allocate space for the new stream
//
- if (CompressionHeader->UncompressedLength > 0) {
- NewStreamBufferSize = CompressionHeader->UncompressedLength;
+ if (UncompressedLength > 0) {
+ NewStreamBufferSize = UncompressedLength;
NewStreamBuffer = AllocatePool (NewStreamBufferSize);
if (NewStreamBuffer == NULL) {
CoreFreePool (Node);
return EFI_OUT_OF_RESOURCES;
}
- if (CompressionHeader->CompressionType == EFI_NOT_COMPRESSED) {
+ if (CompressionType == EFI_NOT_COMPRESSED) {
//
// stream is not actually compressed, just encapsulated. So just copy it.
//
- CopyMem (NewStreamBuffer, CompressionHeader + 1, NewStreamBufferSize);
- } else if (CompressionHeader->CompressionType == EFI_STANDARD_COMPRESSION) {
+ CopyMem (NewStreamBuffer, CompressionSource, NewStreamBufferSize);
+ } else if (CompressionType == EFI_STANDARD_COMPRESSION) {
//
// Only support the EFI_SATNDARD_COMPRESSION algorithm.
//
@@ -692,13 +720,13 @@ CreateChildNode ( Status = Decompress->GetInfo (
Decompress,
- CompressionHeader + 1,
- Node->Size - sizeof (EFI_COMPRESSION_SECTION),
+ CompressionSource,
+ CompressionSourceSize,
(UINT32 *)&NewStreamBufferSize,
&ScratchSize
);
ASSERT_EFI_ERROR (Status);
- ASSERT (NewStreamBufferSize == CompressionHeader->UncompressedLength);
+ ASSERT (NewStreamBufferSize == UncompressedLength);
ScratchBuffer = AllocatePool (ScratchSize);
if (ScratchBuffer == NULL) {
@@ -709,8 +737,8 @@ CreateChildNode ( Status = Decompress->Decompress (
Decompress,
- CompressionHeader + 1,
- Node->Size - sizeof (EFI_COMPRESSION_SECTION),
+ CompressionSource,
+ CompressionSourceSize,
NewStreamBuffer,
(UINT32)NewStreamBufferSize,
ScratchBuffer,
@@ -740,7 +768,13 @@ CreateChildNode ( case EFI_SECTION_GUID_DEFINED:
GuidedHeader = (EFI_GUID_DEFINED_SECTION *) SectionHeader;
- Node->EncapsulationGuid = &GuidedHeader->SectionDefinitionGuid;
+ if (IS_SECTION2 (GuidedHeader)) {
+ Node->EncapsulationGuid = &(((EFI_GUID_DEFINED_SECTION2 *) GuidedHeader)->SectionDefinitionGuid);
+ GuidedSectionAttributes = ((EFI_GUID_DEFINED_SECTION2 *) GuidedHeader)->Attributes;
+ } else {
+ Node->EncapsulationGuid = &GuidedHeader->SectionDefinitionGuid;
+ GuidedSectionAttributes = GuidedHeader->Attributes;
+ }
Status = CoreLocateProtocol (Node->EncapsulationGuid, NULL, (VOID **)&GuidedExtraction);
if (!EFI_ERROR (Status) && GuidedExtraction != NULL) {
//
@@ -763,7 +797,7 @@ CreateChildNode ( // Make sure we initialize the new stream with the correct
// authentication status for both aggregate and local status fields.
//
- if ((GuidedHeader->Attributes & EFI_GUIDED_SECTION_AUTH_STATUS_VALID) != 0) {
+ if ((GuidedSectionAttributes & EFI_GUIDED_SECTION_AUTH_STATUS_VALID) != 0) {
//
// OR in the parent stream's aggregate status.
//
@@ -792,7 +826,7 @@ CreateChildNode ( //
// There's no GUIDed section extraction protocol available.
//
- if ((GuidedHeader->Attributes & EFI_GUIDED_SECTION_PROCESSING_REQUIRED) != 0) {
+ if ((GuidedSectionAttributes & EFI_GUIDED_SECTION_PROCESSING_REQUIRED) != 0) {
//
// If the section REQUIRES an extraction protocol, register for RPN
// when the required GUIDed extraction protocol becomes available.
@@ -804,14 +838,23 @@ CreateChildNode ( //
AuthenticationStatus = Stream->AuthenticationStatus;
- SectionLength = SECTION_SIZE (GuidedHeader);
- Status = OpenSectionStreamEx (
- SectionLength - GuidedHeader->DataOffset,
- (UINT8 *) GuidedHeader + GuidedHeader->DataOffset,
- TRUE,
- AuthenticationStatus,
- &Node->EncapsulatedStreamHandle
- );
+ if (IS_SECTION2 (GuidedHeader)) {
+ Status = OpenSectionStreamEx (
+ SECTION2_SIZE (GuidedHeader) - ((EFI_GUID_DEFINED_SECTION2 *) GuidedHeader)->DataOffset,
+ (UINT8 *) GuidedHeader + ((EFI_GUID_DEFINED_SECTION2 *) GuidedHeader)->DataOffset,
+ TRUE,
+ AuthenticationStatus,
+ &Node->EncapsulatedStreamHandle
+ );
+ } else {
+ Status = OpenSectionStreamEx (
+ SECTION_SIZE (GuidedHeader) - ((EFI_GUID_DEFINED_SECTION *) GuidedHeader)->DataOffset,
+ (UINT8 *) GuidedHeader + ((EFI_GUID_DEFINED_SECTION *) GuidedHeader)->DataOffset,
+ TRUE,
+ AuthenticationStatus,
+ &Node->EncapsulatedStreamHandle
+ );
+ }
if (EFI_ERROR (Status)) {
CoreFreePool (Node);
return Status;
@@ -1075,6 +1118,7 @@ FindStreamNode ( function returns anything other than
EFI_SUCCESS, the value of *AuthenticationStatus
is undefined.
+ @param IsFfs3Fv Indicates the FV format.
@retval EFI_SUCCESS Section was retrieved successfully
@retval EFI_PROTOCOL_ERROR A GUID defined section was encountered in the
@@ -1105,7 +1149,8 @@ GetSection ( IN UINTN SectionInstance,
IN VOID **Buffer,
IN OUT UINTN *BufferSize,
- OUT UINT32 *AuthenticationStatus
+ OUT UINT32 *AuthenticationStatus,
+ IN BOOLEAN IsFfs3Fv
)
{
CORE_SECTION_STREAM_NODE *StreamNode;
@@ -1118,6 +1163,7 @@ GetSection ( UINTN Instance;
UINT8 *CopyBuffer;
UINTN SectionSize;
+ EFI_COMMON_SECTION_HEADER *Section;
OldTpl = CoreRaiseTpl (TPL_NOTIFY);
@@ -1158,8 +1204,22 @@ GetSection ( if (EFI_ERROR (Status)) {
goto GetSection_Done;
}
- CopySize = ChildNode->Size - sizeof (EFI_COMMON_SECTION_HEADER);
- CopyBuffer = ChildStreamNode->StreamBuffer + ChildNode->OffsetInStream + sizeof (EFI_COMMON_SECTION_HEADER);
+
+ Section = (EFI_COMMON_SECTION_HEADER *) (ChildStreamNode->StreamBuffer + ChildNode->OffsetInStream);
+
+ if (IS_SECTION2 (Section)) {
+ ASSERT (SECTION2_SIZE (Section) > 0x00FFFFFF);
+ if (!IsFfs3Fv) {
+ DEBUG ((DEBUG_ERROR, "It is a FFS3 formatted section in a non-FFS3 formatted FV.\n"));
+ Status = EFI_NOT_FOUND;
+ goto GetSection_Done;
+ }
+ CopySize = SECTION2_SIZE (Section) - sizeof (EFI_COMMON_SECTION_HEADER2);
+ CopyBuffer = (UINT8 *) Section + sizeof (EFI_COMMON_SECTION_HEADER2);
+ } else {
+ CopySize = SECTION_SIZE (Section) - sizeof (EFI_COMMON_SECTION_HEADER);
+ CopyBuffer = (UINT8 *) Section + sizeof (EFI_COMMON_SECTION_HEADER);
+ }
*AuthenticationStatus = ExtractedAuthenticationStatus;
}
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