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StandaloneMmPkg/FvLib: Support large file with EFI_FFS_FILE_HEADER2. 

REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3769

Current FvLib will hit parse issue when encountering LARGE file, then
ignore latter ffs/section, thus causing required drivers not being
dispatched. Therefore, need to add support for EFI_FFS_FILE_HEADER2
and EFI_COMMON_SECTION_HEADER2 in FvLib to fix this issue.

Signed-off-by: Wei6 Xu <wei6.xu@intel.com>
Reviewed-by: Liming Gao <gaoliming@byosoft.com.cn>
This commit is contained in:
Wei6 Xu 2021-12-09 14:51:33 +08:00 committed by mergify[bot]
parent 38f6d78c3b
commit f14fff5135
1 changed files with 45 additions and 20 deletions
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65
StandaloneMmPkg/Library/FvLib/FvLib.c
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@ -1,6 +1,6 @@
/** @file
Copyright (c) 2015, Intel Corporation. All rights reserved.<BR>
Copyright (c) 2015 - 2021, Intel Corporation. All rights reserved.<BR>
Copyright (c) 2016 - 2018, ARM Limited. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
@ -63,18 +63,20 @@ CalculateHeaderChecksum (
UINT8 *ptr;
UINTN Index;
UINT8 Sum;
UINTN Size;
Sum = 0;
ptr = (UINT8 *)FileHeader;
Sum = 0;
ptr = (UINT8 *)FileHeader;
Size = IS_FFS_FILE2 (FileHeader) ? sizeof (EFI_FFS_FILE_HEADER2) : sizeof (EFI_FFS_FILE_HEADER);
for (Index = 0; Index < sizeof (EFI_FFS_FILE_HEADER) - 3; Index += 4) {
for (Index = 0; Index < Size - 3; Index += 4) {
Sum = (UINT8)(Sum + ptr[Index]);
Sum = (UINT8)(Sum + ptr[Index + 1]);
Sum = (UINT8)(Sum + ptr[Index + 2]);
Sum = (UINT8)(Sum + ptr[Index + 3]);
}
for ( ; Index < sizeof (EFI_FFS_FILE_HEADER); Index++) {
for ( ; Index < Size; Index++) {
Sum = (UINT8)(Sum + ptr[Index]);
}
@ -157,7 +159,8 @@ FfsFindNextFile (
// Length is 24 bits wide so mask upper 8 bits
// FileLength is adjusted to FileOccupiedSize as it is 8 byte aligned.
//
FileLength = FFS_FILE_SIZE (*FileHeader);
FileLength = IS_FFS_FILE2 (*FileHeader) ?
FFS_FILE2_SIZE (*FileHeader) : FFS_FILE_SIZE (*FileHeader);
FileOccupiedSize = GET_OCCUPIED_SIZE (FileLength, 8);
FfsFileHeader = (EFI_FFS_FILE_HEADER *)((UINT8 *)*FileHeader + FileOccupiedSize);
}
@ -172,14 +175,21 @@ FfsFindNextFile (
switch (FileState) {
case EFI_FILE_HEADER_INVALID:
FileOffset += sizeof (EFI_FFS_FILE_HEADER);
FfsFileHeader = (EFI_FFS_FILE_HEADER *)((UINT8 *)FfsFileHeader + sizeof (EFI_FFS_FILE_HEADER));
if (IS_FFS_FILE2 (FfsFileHeader)) {
FileOffset += sizeof (EFI_FFS_FILE_HEADER2);
FfsFileHeader = (EFI_FFS_FILE_HEADER *)((UINT8 *)FfsFileHeader + sizeof (EFI_FFS_FILE_HEADER2));
} else {
FileOffset += sizeof (EFI_FFS_FILE_HEADER);
FfsFileHeader = (EFI_FFS_FILE_HEADER *)((UINT8 *)FfsFileHeader + sizeof (EFI_FFS_FILE_HEADER));
}
break;
case EFI_FILE_DATA_VALID:
case EFI_FILE_MARKED_FOR_UPDATE:
if (CalculateHeaderChecksum (FfsFileHeader) == 0) {
FileLength = FFS_FILE_SIZE (FfsFileHeader);
FileLength = IS_FFS_FILE2 (FfsFileHeader) ?
FFS_FILE2_SIZE (FfsFileHeader) : FFS_FILE_SIZE (FfsFileHeader);
FileOccupiedSize = GET_OCCUPIED_SIZE (FileLength, 8);
if ((SearchType == FfsFileHeader->Type) || (SearchType == EFI_FV_FILETYPE_ALL)) {
@ -197,7 +207,8 @@ FfsFindNextFile (
break;
case EFI_FILE_DELETED:
FileLength = FFS_FILE_SIZE (FfsFileHeader);
FileLength = IS_FFS_FILE2 (FfsFileHeader) ?
FFS_FILE2_SIZE (FfsFileHeader) : FFS_FILE_SIZE (FfsFileHeader);
FileOccupiedSize = GET_OCCUPIED_SIZE (FileLength, 8);
FileOffset += FileOccupiedSize;
FfsFileHeader = (EFI_FFS_FILE_HEADER *)((UINT8 *)FfsFileHeader + FileOccupiedSize);
@ -253,7 +264,7 @@ FindFfsSectionInSections (
Section = (EFI_COMMON_SECTION_HEADER *)(UINTN)CurrentAddress;
Size = SECTION_SIZE (Section);
Size = IS_SECTION2 (Section) ? SECTION2_SIZE (Section) : SECTION_SIZE (Section);
if (Size < sizeof (*Section)) {
return EFI_VOLUME_CORRUPTED;
}
@ -306,9 +317,13 @@ FfsFindSection (
// Does not include FfsFileHeader header size
// FileSize is adjusted to FileOccupiedSize as it is 8 byte aligned.
//
Section = (EFI_COMMON_SECTION_HEADER *)(FfsFileHeader + 1);
FileSize = FFS_FILE_SIZE (FfsFileHeader);
FileSize -= sizeof (EFI_FFS_FILE_HEADER);
if (IS_FFS_FILE2 (FfsFileHeader)) {
Section = (EFI_COMMON_SECTION_HEADER *)((EFI_FFS_FILE_HEADER2 *)FfsFileHeader + 1);
FileSize = FFS_FILE2_SIZE (FfsFileHeader) - sizeof (EFI_FFS_FILE_HEADER2);
} else {
Section = (EFI_COMMON_SECTION_HEADER *)(FfsFileHeader + 1);
FileSize = FFS_FILE_SIZE (FfsFileHeader) - sizeof (EFI_FFS_FILE_HEADER);
}
Status = FindFfsSectionInSections (
Section,
@ -351,16 +366,26 @@ FfsFindSectionData (
// Does not include FfsFileHeader header size
// FileSize is adjusted to FileOccupiedSize as it is 8 byte aligned.
//
Section = (EFI_COMMON_SECTION_HEADER *)(FfsFileHeader + 1);
FileSize = FFS_FILE_SIZE (FfsFileHeader);
FileSize -= sizeof (EFI_FFS_FILE_HEADER);
if (IS_FFS_FILE2 (FfsFileHeader)) {
Section = (EFI_COMMON_SECTION_HEADER *)((EFI_FFS_FILE_HEADER2 *)FfsFileHeader + 1);
FileSize = FFS_FILE2_SIZE (FfsFileHeader) - sizeof (EFI_FFS_FILE_HEADER2);
} else {
Section = (EFI_COMMON_SECTION_HEADER *)(FfsFileHeader + 1);
FileSize = FFS_FILE_SIZE (FfsFileHeader) - sizeof (EFI_FFS_FILE_HEADER);
}
*SectionData = NULL;
ParsedLength = 0;
while (ParsedLength < FileSize) {
if (Section->Type == SectionType) {
*SectionData = (VOID *)(Section + 1);
*SectionDataSize = SECTION_SIZE (Section);
if (IS_SECTION2 (Section)) {
*SectionData = (VOID *)((EFI_COMMON_SECTION_HEADER2 *)Section + 1);
*SectionDataSize = SECTION2_SIZE (Section);
} else {
*SectionData = (VOID *)(Section + 1);
*SectionDataSize = SECTION_SIZE (Section);
}
return EFI_SUCCESS;
}
@ -369,7 +394,7 @@ FfsFindSectionData (
// SectionLength is adjusted it is 4 byte aligned.
// Go to the next section
//
SectionLength = SECTION_SIZE (Section);
SectionLength = IS_SECTION2 (Section) ? SECTION2_SIZE (Section) : SECTION_SIZE (Section);
SectionLength = GET_OCCUPIED_SIZE (SectionLength, 4);
ParsedLength += SectionLength;