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Add core FFS3 support, FwVolDxe and SectionExtraction.

Browse Source 
Signed-off-by: lzeng14
Reviewed-by: lgao4

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12585 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
lzeng14
2011-10-27 10:46:50 +00:00
parent 6c85d16217
commit 23491d5cc2
8 changed files with 510 additions and 267 deletions
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57
IntelFrameworkModulePkg/Universal/FirmwareVolume/FwVolDxe/Ffs.c
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@ -239,7 +239,11 @@ VerifyHeaderChecksum (
{
UINT8 HeaderChecksum;
HeaderChecksum = CalculateSum8 ((UINT8 *) FfsHeader, sizeof (EFI_FFS_FILE_HEADER));
if (IS_FFS_FILE2 (FfsHeader)) {
HeaderChecksum = CalculateSum8 ((UINT8 *) FfsHeader, sizeof (EFI_FFS_FILE_HEADER2));
} else {
HeaderChecksum = CalculateSum8 ((UINT8 *) FfsHeader, sizeof (EFI_FFS_FILE_HEADER));
}
HeaderChecksum = (UINT8) (HeaderChecksum - FfsHeader->State - FfsHeader->IntegrityCheck.Checksum.File);
if (HeaderChecksum == 0) {
@ -265,18 +269,19 @@ VerifyFileChecksum (
{
UINT8 FileChecksum;
EFI_FV_FILE_ATTRIBUTES Attributes;
UINT32 FileSize;
Attributes = FfsHeader->Attributes;
if ((Attributes & FFS_ATTRIB_CHECKSUM) != 0) {
FileSize = *(UINT32 *) FfsHeader->Size & 0x00FFFFFF;
//
// Check checksum of FFS data
//
FileChecksum = CalculateSum8 ((UINT8 *) FfsHeader + sizeof (EFI_FFS_FILE_HEADER), FileSize - sizeof (EFI_FFS_FILE_HEADER));
if (IS_FFS_FILE2 (FfsHeader)) {
FileChecksum = CalculateSum8 ((UINT8 *) FfsHeader + sizeof (EFI_FFS_FILE_HEADER2), FFS_FILE2_SIZE (FfsHeader) - sizeof (EFI_FFS_FILE_HEADER2));
} else {
FileChecksum = CalculateSum8 ((UINT8 *) FfsHeader + sizeof (EFI_FFS_FILE_HEADER), FFS_FILE_SIZE (FfsHeader) - sizeof (EFI_FFS_FILE_HEADER));
}
FileChecksum = (UINT8) (FileChecksum + FfsHeader->IntegrityCheck.Checksum.File);
if (FileChecksum == 0) {
@ -388,10 +393,18 @@ GetNextPossibleFileHeader (
//
// Skip this header
//
return (EFI_PHYSICAL_ADDRESS) (UINTN) FfsHeader + sizeof (EFI_FFS_FILE_HEADER);
if (IS_FFS_FILE2 (FfsHeader)) {
return (EFI_PHYSICAL_ADDRESS) (UINTN) FfsHeader + sizeof (EFI_FFS_FILE_HEADER2);
} else {
return (EFI_PHYSICAL_ADDRESS) (UINTN) FfsHeader + sizeof (EFI_FFS_FILE_HEADER);
}
}
FileLength = *(UINT32 *) FfsHeader->Size & 0x00FFFFFF;
if (IS_FFS_FILE2 (FfsHeader)) {
FileLength = FFS_FILE2_SIZE (FfsHeader);
} else {
FileLength = FFS_FILE_SIZE (FfsHeader);
}
//
// Since FileLength is not multiple of 8, we need skip some bytes
@ -593,33 +606,3 @@ IsValidFFSFile (
return TRUE;
}
/**
Locate the first file in FV.
@param FvDevice Cached FV image.
@param FirstFile Points to the got first FFS file header.
@retval EFI_NOT_FOUND No FFS file is found in FV.
@retval EFI_SUCCESS The first FFS file is got.
**/
EFI_STATUS
FvLocateFirstFile (
IN FV_DEVICE *FvDevice,
OUT EFI_FFS_FILE_HEADER **FirstFile
)
{
FFS_FILE_LIST_ENTRY *TmpFileList;
LIST_ENTRY *Link;
Link = FvDevice->FfsFileListHeader.ForwardLink;
if (Link == &FvDevice->FfsFileListHeader) {
return EFI_NOT_FOUND;
}
TmpFileList = (FFS_FILE_LIST_ENTRY *) Link;
*FirstFile = (EFI_FFS_FILE_HEADER *) TmpFileList->FfsHeader;
return EFI_SUCCESS;
}