mirror of https://github.com/acidanthera/audk.git
1222 lines
37 KiB
C
1222 lines
37 KiB
C
/** @file
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Implements functions to pad firmware file.
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Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#include "FwVolDriver.h"
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/**
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Calculate the checksum for a PAD file.
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@param PadFileHeader The Pad File to be caculeted the checksum.
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**/
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VOID
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SetPadFileChecksum (
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IN EFI_FFS_FILE_HEADER *PadFileHeader
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)
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{
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if ((PadFileHeader->Attributes & FFS_ATTRIB_CHECKSUM) != 0) {
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if (IS_FFS_FILE2 (PadFileHeader)) {
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//
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// Calculate checksum of Pad File Data
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//
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PadFileHeader->IntegrityCheck.Checksum.File =
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CalculateCheckSum8 ((UINT8 *) PadFileHeader + sizeof (EFI_FFS_FILE_HEADER2), FFS_FILE2_SIZE (PadFileHeader) - sizeof (EFI_FFS_FILE_HEADER2));
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} else {
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//
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// Calculate checksum of Pad File Data
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//
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PadFileHeader->IntegrityCheck.Checksum.File =
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CalculateCheckSum8 ((UINT8 *) PadFileHeader + sizeof (EFI_FFS_FILE_HEADER), FFS_FILE_SIZE (PadFileHeader) - sizeof (EFI_FFS_FILE_HEADER));
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}
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} else {
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PadFileHeader->IntegrityCheck.Checksum.File = FFS_FIXED_CHECKSUM;
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}
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return ;
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}
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/**
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Create a PAD File in the Free Space.
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@param FvDevice Firmware Volume Device.
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@param FreeSpaceEntry Indicating in which Free Space(Cache) the Pad file will be inserted.
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@param Size Pad file Size, not include the header.
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@param PadFileEntry The Ffs File Entry that points to this Pad File.
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@retval EFI_SUCCESS Successfully create a PAD file.
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@retval EFI_OUT_OF_RESOURCES No enough free space to create a PAD file.
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@retval EFI_INVALID_PARAMETER Size is not 8 byte alignment.
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@retval EFI_DEVICE_ERROR Free space is not erased.
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**/
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EFI_STATUS
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FvCreatePadFileInFreeSpace (
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IN FV_DEVICE *FvDevice,
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IN FREE_SPACE_ENTRY *FreeSpaceEntry,
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IN UINTN Size,
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OUT FFS_FILE_LIST_ENTRY **PadFileEntry
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)
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{
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EFI_STATUS Status;
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EFI_FFS_FILE_HEADER *PadFileHeader;
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UINTN Offset;
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UINTN NumBytesWritten;
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UINTN StateOffset;
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UINT8 *StartPos;
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FFS_FILE_LIST_ENTRY *FfsFileEntry;
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UINTN HeaderSize;
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UINTN FileSize;
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HeaderSize = sizeof (EFI_FFS_FILE_HEADER);
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FileSize = Size + HeaderSize;
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if (FileSize > 0x00FFFFFF) {
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HeaderSize = sizeof (EFI_FFS_FILE_HEADER2);
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FileSize = Size + HeaderSize;
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}
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if (FreeSpaceEntry->Length < FileSize) {
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return EFI_OUT_OF_RESOURCES;
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}
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if ((Size & 0x07) != 0) {
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return EFI_INVALID_PARAMETER;
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}
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StartPos = FreeSpaceEntry->StartingAddress;
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//
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// First double check the space
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//
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if (!IsBufferErased (
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FvDevice->ErasePolarity,
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StartPos,
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FileSize
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)) {
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return EFI_DEVICE_ERROR;
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}
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PadFileHeader = (EFI_FFS_FILE_HEADER *) StartPos;
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//
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// Create File Step 1
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//
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SetFileState (EFI_FILE_HEADER_CONSTRUCTION, PadFileHeader);
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Offset = (UINTN) (StartPos - FvDevice->CachedFv);
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StateOffset = Offset + (UINT8 *) &PadFileHeader->State - (UINT8 *) PadFileHeader;
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NumBytesWritten = sizeof (EFI_FFS_FILE_STATE);
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Status = FvcWrite (
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FvDevice,
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StateOffset,
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&NumBytesWritten,
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&PadFileHeader->State
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);
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if (EFI_ERROR (Status)) {
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SetFileState (EFI_FILE_HEADER_CONSTRUCTION, PadFileHeader);
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return Status;
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}
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//
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// Update Free Space Entry, since header is allocated
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//
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FreeSpaceEntry->Length -= HeaderSize;
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FreeSpaceEntry->StartingAddress += HeaderSize;
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//
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// Fill File Name Guid, here we assign a NULL-GUID to Pad files
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//
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ZeroMem (&PadFileHeader->Name, sizeof (EFI_GUID));
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//
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// Fill File Type, checksum(0), Attributes(0), Size
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//
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PadFileHeader->Type = EFI_FV_FILETYPE_FFS_PAD;
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PadFileHeader->Attributes = 0;
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if ((FileSize) > 0x00FFFFFF) {
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((EFI_FFS_FILE_HEADER2 *) PadFileHeader)->ExtendedSize = (UINT32) FileSize;
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*(UINT32 *) PadFileHeader->Size &= 0xFF000000;
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PadFileHeader->Attributes |= FFS_ATTRIB_LARGE_FILE;
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} else {
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*(UINT32 *) PadFileHeader->Size &= 0xFF000000;
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*(UINT32 *) PadFileHeader->Size |= FileSize;
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}
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SetHeaderChecksum (PadFileHeader);
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SetPadFileChecksum (PadFileHeader);
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Offset = (UINTN) (StartPos - FvDevice->CachedFv);
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NumBytesWritten = HeaderSize;
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Status = FvcWrite (
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FvDevice,
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Offset,
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&NumBytesWritten,
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(UINT8 *) PadFileHeader
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);
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if (EFI_ERROR (Status)) {
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return Status;
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}
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//
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// Step 2, then Mark header valid, since no data write,
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// mark the data valid at the same time.
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//
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SetFileState (EFI_FILE_HEADER_VALID, PadFileHeader);
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SetFileState (EFI_FILE_DATA_VALID, PadFileHeader);
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Offset = (UINTN) (StartPos - FvDevice->CachedFv);
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StateOffset = Offset + (UINT8 *) &PadFileHeader->State - (UINT8 *) PadFileHeader;
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NumBytesWritten = sizeof (EFI_FFS_FILE_STATE);
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Status = FvcWrite (
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FvDevice,
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StateOffset,
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&NumBytesWritten,
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&PadFileHeader->State
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);
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if (EFI_ERROR (Status)) {
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SetFileState (EFI_FILE_HEADER_VALID, PadFileHeader);
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SetFileState (EFI_FILE_DATA_VALID, PadFileHeader);
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return Status;
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}
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//
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// Update Free Space Entry, since header is allocated
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//
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FreeSpaceEntry->Length -= Size;
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FreeSpaceEntry->StartingAddress += Size;
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//
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// If successfully, insert an FfsFileEntry at the end of ffs file list
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//
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FfsFileEntry = AllocateZeroPool (sizeof (FFS_FILE_LIST_ENTRY));
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ASSERT (FfsFileEntry != NULL);
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FfsFileEntry->FfsHeader = (UINT8 *) (UINTN) StartPos;
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InsertTailList (&FvDevice->FfsFileListHeader, &FfsFileEntry->Link);
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*PadFileEntry = FfsFileEntry;
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FvDevice->CurrentFfsFile = FfsFileEntry;
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return EFI_SUCCESS;
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}
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/**
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Fill pad file header within firmware cache.
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@param PadFileHeader The start of the Pad File Buffer.
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@param PadFileLength The length of the pad file including the header.
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**/
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VOID
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FvFillPadFile (
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IN EFI_FFS_FILE_HEADER *PadFileHeader,
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IN UINTN PadFileLength
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)
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{
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//
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// Fill File Name Guid, here we assign a NULL-GUID to Pad files
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//
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ZeroMem (&PadFileHeader->Name, sizeof (EFI_GUID));
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//
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// Fill File Type, checksum(0), Attributes(0), Size
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//
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PadFileHeader->Type = EFI_FV_FILETYPE_FFS_PAD;
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PadFileHeader->Attributes = 0;
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if (PadFileLength > 0x00FFFFFF) {
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((EFI_FFS_FILE_HEADER2 *) PadFileHeader)->ExtendedSize = (UINT32) PadFileLength;
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*(UINT32 *) PadFileHeader->Size &= 0xFF000000;
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PadFileHeader->Attributes |= FFS_ATTRIB_LARGE_FILE;
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} else {
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*(UINT32 *) PadFileHeader->Size &= 0xFF000000;
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*(UINT32 *) PadFileHeader->Size |= PadFileLength;
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}
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SetHeaderChecksum (PadFileHeader);
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SetPadFileChecksum (PadFileHeader);
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//
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// Set File State to 0x00000111
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//
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SetFileState (EFI_FILE_HEADER_CONSTRUCTION, PadFileHeader);
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SetFileState (EFI_FILE_HEADER_VALID, PadFileHeader);
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SetFileState (EFI_FILE_DATA_VALID, PadFileHeader);
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return ;
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}
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/**
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Create entire FFS file.
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@param FileHeader Starting Address of a Buffer that hold the FFS File image.
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@param FfsFileBuffer The source buffer that contains the File Data.
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@param BufferSize The length of FfsFileBuffer.
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@param ActualFileSize Size of FFS file.
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@param FileName The Guid of Ffs File.
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@param FileType The type of the written Ffs File.
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@param FileAttributes The attributes of the written Ffs File.
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@retval EFI_INVALID_PARAMETER File type is not valid.
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@retval EFI_SUCCESS FFS file is successfully created.
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**/
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EFI_STATUS
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FvFillFfsFile (
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OUT EFI_FFS_FILE_HEADER *FileHeader,
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IN UINT8 *FfsFileBuffer,
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IN UINTN BufferSize,
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IN UINTN ActualFileSize,
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IN EFI_GUID *FileName,
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IN EFI_FV_FILETYPE FileType,
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IN EFI_FV_FILE_ATTRIBUTES FileAttributes
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)
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{
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EFI_FFS_FILE_ATTRIBUTES TmpFileAttribute;
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EFI_FFS_FILE_HEADER *TmpFileHeader;
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//
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// File Type value 0x0E~0xE0 are reserved
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//
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if ((FileType > EFI_FV_FILETYPE_SMM_CORE) && (FileType < 0xE0)) {
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return EFI_INVALID_PARAMETER;
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}
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TmpFileHeader = (EFI_FFS_FILE_HEADER *) FfsFileBuffer;
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//
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// First fill all fields ready in FfsFileBuffer
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//
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CopyGuid (&TmpFileHeader->Name, FileName);
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TmpFileHeader->Type = FileType;
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//
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// Convert the FileAttributes to FFSFileAttributes
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//
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FvFileAttrib2FfsFileAttrib (FileAttributes, &TmpFileAttribute);
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TmpFileHeader->Attributes = TmpFileAttribute;
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if (ActualFileSize > 0x00FFFFFF) {
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((EFI_FFS_FILE_HEADER2 *) FileHeader)->ExtendedSize = (UINT32) ActualFileSize;
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*(UINT32 *) FileHeader->Size &= 0xFF000000;
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FileHeader->Attributes |= FFS_ATTRIB_LARGE_FILE;
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} else {
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*(UINT32 *) FileHeader->Size &= 0xFF000000;
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*(UINT32 *) FileHeader->Size |= ActualFileSize;
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}
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SetHeaderChecksum (TmpFileHeader);
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SetFileChecksum (TmpFileHeader, ActualFileSize);
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SetFileState (EFI_FILE_HEADER_CONSTRUCTION, TmpFileHeader);
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SetFileState (EFI_FILE_HEADER_VALID, TmpFileHeader);
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SetFileState (EFI_FILE_DATA_VALID, TmpFileHeader);
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//
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// Copy data from FfsFileBuffer to FileHeader(cache)
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//
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CopyMem (FileHeader, FfsFileBuffer, BufferSize);
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return EFI_SUCCESS;
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}
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/**
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Fill some other extra space using 0xFF(Erase Value).
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@param ErasePolarity Fv erase value.
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@param FileHeader Point to the start of FFS File.
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@param ExtraLength The pading length.
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**/
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VOID
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FvAdjustFfsFile (
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IN UINT8 ErasePolarity,
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IN EFI_FFS_FILE_HEADER *FileHeader,
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IN UINTN ExtraLength
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)
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{
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UINT8 *Ptr;
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UINT8 PadingByte;
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if (IS_FFS_FILE2 (FileHeader)) {
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Ptr = (UINT8 *) FileHeader + FFS_FILE2_SIZE (FileHeader);
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} else {
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Ptr = (UINT8 *) FileHeader + FFS_FILE_SIZE (FileHeader);
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}
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if (ErasePolarity == 0) {
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PadingByte = 0;
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} else {
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PadingByte = 0xFF;
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}
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//
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// Fill the non-used space with Padding Byte
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//
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SetMem (Ptr, ExtraLength, PadingByte);
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return ;
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}
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/**
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Free File List entry pointed by FileListHead.
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@param FileListHeader FileListEntry Header.
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**/
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VOID
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FreeFileList (
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IN LIST_ENTRY *FileListHead
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)
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{
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FFS_FILE_LIST_ENTRY *FfsFileEntry;
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LIST_ENTRY *NextEntry;
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FfsFileEntry = (FFS_FILE_LIST_ENTRY *) (FileListHead->ForwardLink);
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//
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// Loop the whole list entry to free resources
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//
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while (&FfsFileEntry->Link != FileListHead) {
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NextEntry = (&FfsFileEntry->Link)->ForwardLink;
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FreePool (FfsFileEntry);
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FfsFileEntry = (FFS_FILE_LIST_ENTRY *) NextEntry;
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}
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return ;
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}
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/**
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Create a new file within a PAD file area.
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@param FvDevice Firmware Volume Device.
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@param FfsFileBuffer A buffer that holds an FFS file,(it contains a File Header which is in init state).
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@param BufferSize The size of FfsFileBuffer.
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@param ActualFileSize The actual file length, it may not be multiples of 8.
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@param FileName The FFS File Name.
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@param FileType The FFS File Type.
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@param FileAttributes The Attributes of the FFS File to be created.
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@retval EFI_SUCCESS Successfully create a new file within the found PAD file area.
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@retval EFI_OUT_OF_RESOURCES No suitable PAD file is found.
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@retval other errors New file is created failed.
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**/
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EFI_STATUS
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FvCreateNewFileInsidePadFile (
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IN FV_DEVICE *FvDevice,
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IN UINT8 *FfsFileBuffer,
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IN UINTN BufferSize,
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IN UINTN ActualFileSize,
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IN EFI_GUID *FileName,
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IN EFI_FV_FILETYPE FileType,
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IN EFI_FV_FILE_ATTRIBUTES FileAttributes
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)
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{
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UINTN RequiredAlignment;
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FFS_FILE_LIST_ENTRY *PadFileEntry;
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EFI_STATUS Status;
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UINTN PadAreaLength;
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UINTN PadSize;
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EFI_FFS_FILE_HEADER *FileHeader;
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EFI_FFS_FILE_HEADER *OldPadFileHeader;
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EFI_FFS_FILE_HEADER *PadFileHeader;
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EFI_FFS_FILE_HEADER *TailPadFileHeader;
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UINTN StateOffset;
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UINTN Offset;
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UINTN NumBytesWritten;
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UINT8 *StartPos;
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LIST_ENTRY NewFileList;
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FFS_FILE_LIST_ENTRY *NewFileListEntry;
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FFS_FILE_LIST_ENTRY *FfsEntry;
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FFS_FILE_LIST_ENTRY *NextFfsEntry;
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//
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// First get the required alignment from the File Attributes
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//
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RequiredAlignment = GetRequiredAlignment (FileAttributes);
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//
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// Find a suitable PAD File
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//
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Status = FvLocatePadFile (
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FvDevice,
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BufferSize,
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RequiredAlignment,
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&PadSize,
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&PadFileEntry
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);
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if (EFI_ERROR (Status)) {
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return EFI_OUT_OF_RESOURCES;
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}
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OldPadFileHeader = (EFI_FFS_FILE_HEADER *) PadFileEntry->FfsHeader;
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//
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// Step 1: Update Pad File Header
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//
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SetFileState (EFI_FILE_MARKED_FOR_UPDATE, OldPadFileHeader);
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StartPos = PadFileEntry->FfsHeader;
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Offset = (UINTN) (StartPos - FvDevice->CachedFv);
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StateOffset = Offset + (UINT8 *) &OldPadFileHeader->State - (UINT8 *) OldPadFileHeader;
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NumBytesWritten = sizeof (EFI_FFS_FILE_STATE);
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Status = FvcWrite (
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FvDevice,
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StateOffset,
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&NumBytesWritten,
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&OldPadFileHeader->State
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);
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if (EFI_ERROR (Status)) {
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SetFileState (EFI_FILE_HEADER_CONSTRUCTION, OldPadFileHeader);
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return Status;
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}
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|
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//
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// Step 2: Update Pad area
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//
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InitializeListHead (&NewFileList);
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if (IS_FFS_FILE2 (OldPadFileHeader)) {
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PadAreaLength = FFS_FILE2_SIZE (OldPadFileHeader) - sizeof (EFI_FFS_FILE_HEADER);
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PadFileHeader = (EFI_FFS_FILE_HEADER *) ((UINT8 *) OldPadFileHeader + sizeof (EFI_FFS_FILE_HEADER2));
|
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} else {
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PadAreaLength = FFS_FILE_SIZE (OldPadFileHeader) - sizeof (EFI_FFS_FILE_HEADER);
|
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PadFileHeader = (EFI_FFS_FILE_HEADER *) ((UINT8 *) OldPadFileHeader + sizeof (EFI_FFS_FILE_HEADER));
|
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}
|
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|
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if (PadSize != 0) {
|
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//
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// Insert a PAD file before to achieve required alignment
|
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//
|
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FvFillPadFile (PadFileHeader, PadSize);
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NewFileListEntry = AllocatePool (sizeof (FFS_FILE_LIST_ENTRY));
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ASSERT (NewFileListEntry != NULL);
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NewFileListEntry->FfsHeader = (UINT8 *) PadFileHeader;
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InsertTailList (&NewFileList, &NewFileListEntry->Link);
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}
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FileHeader = (EFI_FFS_FILE_HEADER *) ((UINT8 *) PadFileHeader + PadSize);
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Status = FvFillFfsFile (
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FileHeader,
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FfsFileBuffer,
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BufferSize,
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ActualFileSize,
|
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FileName,
|
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FileType,
|
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FileAttributes
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);
|
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if (EFI_ERROR (Status)) {
|
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FreeFileList (&NewFileList);
|
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return Status;
|
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}
|
|
|
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NewFileListEntry = AllocatePool (sizeof (FFS_FILE_LIST_ENTRY));
|
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ASSERT (NewFileListEntry != NULL);
|
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NewFileListEntry->FfsHeader = (UINT8 *) FileHeader;
|
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InsertTailList (&NewFileList, &NewFileListEntry->Link);
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|
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FvDevice->CurrentFfsFile = NewFileListEntry;
|
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|
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if (PadAreaLength > (BufferSize + PadSize)) {
|
|
if ((PadAreaLength - BufferSize - PadSize) >= sizeof (EFI_FFS_FILE_HEADER)) {
|
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//
|
|
// we can insert another PAD file
|
|
//
|
|
TailPadFileHeader = (EFI_FFS_FILE_HEADER *) ((UINT8 *) FileHeader + BufferSize);
|
|
FvFillPadFile (TailPadFileHeader, PadAreaLength - BufferSize - PadSize);
|
|
|
|
NewFileListEntry = AllocatePool (sizeof (FFS_FILE_LIST_ENTRY));
|
|
ASSERT (NewFileListEntry != NULL);
|
|
|
|
NewFileListEntry->FfsHeader = (UINT8 *) TailPadFileHeader;
|
|
InsertTailList (&NewFileList, &NewFileListEntry->Link);
|
|
} else {
|
|
//
|
|
// because left size cannot hold another PAD file header,
|
|
// adjust the writing file size (just in cache)
|
|
//
|
|
FvAdjustFfsFile (
|
|
FvDevice->ErasePolarity,
|
|
FileHeader,
|
|
PadAreaLength - BufferSize - PadSize
|
|
);
|
|
}
|
|
}
|
|
//
|
|
// Start writing to FV
|
|
//
|
|
if (IS_FFS_FILE2 (OldPadFileHeader)) {
|
|
StartPos = (UINT8 *) OldPadFileHeader + sizeof (EFI_FFS_FILE_HEADER2);
|
|
} else {
|
|
StartPos = (UINT8 *) OldPadFileHeader + sizeof (EFI_FFS_FILE_HEADER);
|
|
}
|
|
|
|
Offset = (UINTN) (StartPos - FvDevice->CachedFv);
|
|
|
|
NumBytesWritten = PadAreaLength;
|
|
Status = FvcWrite (
|
|
FvDevice,
|
|
Offset,
|
|
&NumBytesWritten,
|
|
StartPos
|
|
);
|
|
if (EFI_ERROR (Status)) {
|
|
FreeFileList (&NewFileList);
|
|
FvDevice->CurrentFfsFile = NULL;
|
|
return Status;
|
|
}
|
|
|
|
//
|
|
// Step 3: Mark Pad file header as EFI_FILE_HEADER_INVALID
|
|
//
|
|
SetFileState (EFI_FILE_HEADER_INVALID, OldPadFileHeader);
|
|
|
|
StartPos = PadFileEntry->FfsHeader;
|
|
|
|
Offset = (UINTN) (StartPos - FvDevice->CachedFv);
|
|
StateOffset = Offset + (UINT8 *) &OldPadFileHeader->State - (UINT8 *) OldPadFileHeader;
|
|
|
|
NumBytesWritten = sizeof (EFI_FFS_FILE_STATE);
|
|
Status = FvcWrite (
|
|
FvDevice,
|
|
StateOffset,
|
|
&NumBytesWritten,
|
|
&OldPadFileHeader->State
|
|
);
|
|
if (EFI_ERROR (Status)) {
|
|
SetFileState (EFI_FILE_HEADER_INVALID, OldPadFileHeader);
|
|
FreeFileList (&NewFileList);
|
|
FvDevice->CurrentFfsFile = NULL;
|
|
return Status;
|
|
}
|
|
|
|
//
|
|
// If all successfully, update FFS_FILE_LIST
|
|
//
|
|
|
|
//
|
|
// Delete old pad file entry
|
|
//
|
|
FfsEntry = (FFS_FILE_LIST_ENTRY *) PadFileEntry->Link.BackLink;
|
|
NextFfsEntry = (FFS_FILE_LIST_ENTRY *) PadFileEntry->Link.ForwardLink;
|
|
|
|
FreePool (PadFileEntry);
|
|
|
|
FfsEntry->Link.ForwardLink = NewFileList.ForwardLink;
|
|
(NewFileList.ForwardLink)->BackLink = &FfsEntry->Link;
|
|
NextFfsEntry->Link.BackLink = NewFileList.BackLink;
|
|
(NewFileList.BackLink)->ForwardLink = &NextFfsEntry->Link;
|
|
|
|
return EFI_SUCCESS;
|
|
}
|
|
|
|
/**
|
|
Free all FfsBuffer.
|
|
|
|
@param NumOfFiles Number of FfsBuffer.
|
|
@param FfsBuffer An array of pointer to an FFS File Buffer
|
|
|
|
**/
|
|
VOID
|
|
FreeFfsBuffer (
|
|
IN UINTN NumOfFiles,
|
|
IN UINT8 **FfsBuffer
|
|
)
|
|
{
|
|
UINTN Index;
|
|
for (Index = 0; Index < NumOfFiles; Index++) {
|
|
if (FfsBuffer[Index] != NULL) {
|
|
FreePool (FfsBuffer[Index]);
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
Create multiple files within a PAD File area.
|
|
|
|
@param FvDevice Firmware Volume Device.
|
|
@param PadFileEntry The pad file entry to be written in.
|
|
@param NumOfFiles Total File number to be written.
|
|
@param BufferSize The array of buffer size of each FfsBuffer.
|
|
@param ActualFileSize The array of actual file size.
|
|
@param PadSize The array of leading pad file size for each FFS File
|
|
@param FfsBuffer The array of Ffs Buffer pointer.
|
|
@param FileData The array of EFI_FV_WRITE_FILE_DATA structure,
|
|
used to get name, attributes, type, etc.
|
|
|
|
@retval EFI_SUCCESS Add the input multiple files into PAD file area.
|
|
@retval EFI_OUT_OF_RESOURCES No enough memory is allocated.
|
|
@retval other error Files can't be added into PAD file area.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
FvCreateMultipleFilesInsidePadFile (
|
|
IN FV_DEVICE *FvDevice,
|
|
IN FFS_FILE_LIST_ENTRY *PadFileEntry,
|
|
IN UINTN NumOfFiles,
|
|
IN UINTN *BufferSize,
|
|
IN UINTN *ActualFileSize,
|
|
IN UINTN *PadSize,
|
|
IN UINT8 **FfsBuffer,
|
|
IN EFI_FV_WRITE_FILE_DATA *FileData
|
|
)
|
|
{
|
|
EFI_STATUS Status;
|
|
EFI_FFS_FILE_HEADER *OldPadFileHeader;
|
|
UINTN Index;
|
|
EFI_FFS_FILE_HEADER *PadFileHeader;
|
|
EFI_FFS_FILE_HEADER *FileHeader;
|
|
EFI_FFS_FILE_HEADER *TailPadFileHeader;
|
|
UINTN TotalSize;
|
|
UINTN PadAreaLength;
|
|
LIST_ENTRY NewFileList;
|
|
FFS_FILE_LIST_ENTRY *NewFileListEntry;
|
|
UINTN Offset;
|
|
UINTN NumBytesWritten;
|
|
UINT8 *StartPos;
|
|
FFS_FILE_LIST_ENTRY *FfsEntry;
|
|
FFS_FILE_LIST_ENTRY *NextFfsEntry;
|
|
|
|
InitializeListHead (&NewFileList);
|
|
|
|
NewFileListEntry = NULL;
|
|
|
|
OldPadFileHeader = (EFI_FFS_FILE_HEADER *) PadFileEntry->FfsHeader;
|
|
if (IS_FFS_FILE2 (OldPadFileHeader)) {
|
|
PadAreaLength = FFS_FILE2_SIZE (OldPadFileHeader) - sizeof (EFI_FFS_FILE_HEADER2);
|
|
} else {
|
|
PadAreaLength = FFS_FILE_SIZE (OldPadFileHeader) - sizeof (EFI_FFS_FILE_HEADER);
|
|
}
|
|
|
|
Status = UpdateHeaderBit (
|
|
FvDevice,
|
|
OldPadFileHeader,
|
|
EFI_FILE_MARKED_FOR_UPDATE
|
|
);
|
|
if (EFI_ERROR (Status)) {
|
|
return Status;
|
|
}
|
|
//
|
|
// Update PAD area
|
|
//
|
|
TotalSize = 0;
|
|
if (IS_FFS_FILE2 (OldPadFileHeader)) {
|
|
PadFileHeader = (EFI_FFS_FILE_HEADER *) ((UINT8 *) OldPadFileHeader + sizeof (EFI_FFS_FILE_HEADER2));
|
|
} else {
|
|
PadFileHeader = (EFI_FFS_FILE_HEADER *) ((UINT8 *) OldPadFileHeader + sizeof (EFI_FFS_FILE_HEADER));
|
|
}
|
|
FileHeader = PadFileHeader;
|
|
|
|
for (Index = 0; Index < NumOfFiles; Index++) {
|
|
if (PadSize[Index] != 0) {
|
|
FvFillPadFile (PadFileHeader, PadSize[Index]);
|
|
NewFileListEntry = AllocatePool (sizeof (FFS_FILE_LIST_ENTRY));
|
|
if (NewFileListEntry == NULL) {
|
|
FreeFileList (&NewFileList);
|
|
return EFI_OUT_OF_RESOURCES;
|
|
}
|
|
|
|
NewFileListEntry->FfsHeader = (UINT8 *) PadFileHeader;
|
|
InsertTailList (&NewFileList, &NewFileListEntry->Link);
|
|
}
|
|
|
|
FileHeader = (EFI_FFS_FILE_HEADER *) ((UINT8 *) PadFileHeader + PadSize[Index]);
|
|
Status = FvFillFfsFile (
|
|
FileHeader,
|
|
FfsBuffer[Index],
|
|
BufferSize[Index],
|
|
ActualFileSize[Index],
|
|
FileData[Index].NameGuid,
|
|
FileData[Index].Type,
|
|
FileData[Index].FileAttributes
|
|
);
|
|
if (EFI_ERROR (Status)) {
|
|
FreeFileList (&NewFileList);
|
|
return Status;
|
|
}
|
|
|
|
NewFileListEntry = AllocatePool (sizeof (FFS_FILE_LIST_ENTRY));
|
|
if (NewFileListEntry == NULL) {
|
|
FreeFileList (&NewFileList);
|
|
return EFI_OUT_OF_RESOURCES;
|
|
}
|
|
|
|
NewFileListEntry->FfsHeader = (UINT8 *) FileHeader;
|
|
InsertTailList (&NewFileList, &NewFileListEntry->Link);
|
|
|
|
PadFileHeader = (EFI_FFS_FILE_HEADER *) ((UINT8 *) FileHeader + BufferSize[Index]);
|
|
TotalSize += PadSize[Index];
|
|
TotalSize += BufferSize[Index];
|
|
}
|
|
|
|
FvDevice->CurrentFfsFile = NewFileListEntry;
|
|
//
|
|
// Maybe we need a tail pad file
|
|
//
|
|
if (PadAreaLength > TotalSize) {
|
|
if ((PadAreaLength - TotalSize) >= sizeof (EFI_FFS_FILE_HEADER)) {
|
|
//
|
|
// we can insert another PAD file
|
|
//
|
|
TailPadFileHeader = (EFI_FFS_FILE_HEADER *) ((UINT8 *) FileHeader + BufferSize[NumOfFiles - 1]);
|
|
FvFillPadFile (TailPadFileHeader, PadAreaLength - TotalSize);
|
|
|
|
NewFileListEntry = AllocatePool (sizeof (FFS_FILE_LIST_ENTRY));
|
|
if (NewFileListEntry == NULL) {
|
|
FreeFileList (&NewFileList);
|
|
FvDevice->CurrentFfsFile = NULL;
|
|
return EFI_OUT_OF_RESOURCES;
|
|
}
|
|
|
|
NewFileListEntry->FfsHeader = (UINT8 *) TailPadFileHeader;
|
|
InsertTailList (&NewFileList, &NewFileListEntry->Link);
|
|
} else {
|
|
//
|
|
// because left size cannot hold another PAD file header,
|
|
// adjust the writing file size (just in cache)
|
|
//
|
|
FvAdjustFfsFile (
|
|
FvDevice->ErasePolarity,
|
|
FileHeader,
|
|
PadAreaLength - TotalSize
|
|
);
|
|
}
|
|
}
|
|
//
|
|
// Start writing to FV
|
|
//
|
|
if (IS_FFS_FILE2 (OldPadFileHeader)) {
|
|
StartPos = (UINT8 *) OldPadFileHeader + sizeof (EFI_FFS_FILE_HEADER2);
|
|
} else {
|
|
StartPos = (UINT8 *) OldPadFileHeader + sizeof (EFI_FFS_FILE_HEADER);
|
|
}
|
|
|
|
Offset = (UINTN) (StartPos - FvDevice->CachedFv);
|
|
|
|
NumBytesWritten = PadAreaLength;
|
|
Status = FvcWrite (
|
|
FvDevice,
|
|
Offset,
|
|
&NumBytesWritten,
|
|
StartPos
|
|
);
|
|
if (EFI_ERROR (Status)) {
|
|
FreeFileList (&NewFileList);
|
|
FvDevice->CurrentFfsFile = NULL;
|
|
return Status;
|
|
}
|
|
|
|
Status = UpdateHeaderBit (
|
|
FvDevice,
|
|
OldPadFileHeader,
|
|
EFI_FILE_HEADER_INVALID
|
|
);
|
|
if (EFI_ERROR (Status)) {
|
|
FreeFileList (&NewFileList);
|
|
FvDevice->CurrentFfsFile = NULL;
|
|
return Status;
|
|
}
|
|
|
|
//
|
|
// Update File List Link
|
|
//
|
|
|
|
//
|
|
// First delete old pad file entry
|
|
//
|
|
FfsEntry = (FFS_FILE_LIST_ENTRY *) PadFileEntry->Link.BackLink;
|
|
NextFfsEntry = (FFS_FILE_LIST_ENTRY *) PadFileEntry->Link.ForwardLink;
|
|
|
|
FreePool (PadFileEntry);
|
|
|
|
FfsEntry->Link.ForwardLink = NewFileList.ForwardLink;
|
|
(NewFileList.ForwardLink)->BackLink = &FfsEntry->Link;
|
|
NextFfsEntry->Link.BackLink = NewFileList.BackLink;
|
|
(NewFileList.BackLink)->ForwardLink = &NextFfsEntry->Link;
|
|
|
|
return EFI_SUCCESS;
|
|
}
|
|
|
|
/**
|
|
Create multiple files within the Free Space.
|
|
|
|
@param FvDevice Firmware Volume Device.
|
|
@param FreeSpaceEntry Indicating in which Free Space(Cache) the multiple files will be inserted.
|
|
@param NumOfFiles Total File number to be written.
|
|
@param BufferSize The array of buffer size of each FfsBuffer.
|
|
@param ActualFileSize The array of actual file size.
|
|
@param PadSize The array of leading pad file size for each FFS File
|
|
@param FfsBuffer The array of Ffs Buffer pointer.
|
|
@param FileData The array of EFI_FV_WRITE_FILE_DATA structure,
|
|
used to get name, attributes, type, etc.
|
|
|
|
@retval EFI_SUCCESS Add the input multiple files into PAD file area.
|
|
@retval EFI_OUT_OF_RESOURCES No enough memory is allocated.
|
|
@retval other error Files can't be added into PAD file area.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
FvCreateMultipleFilesInsideFreeSpace (
|
|
IN FV_DEVICE *FvDevice,
|
|
IN FREE_SPACE_ENTRY *FreeSpaceEntry,
|
|
IN UINTN NumOfFiles,
|
|
IN UINTN *BufferSize,
|
|
IN UINTN *ActualFileSize,
|
|
IN UINTN *PadSize,
|
|
IN UINT8 **FfsBuffer,
|
|
IN EFI_FV_WRITE_FILE_DATA *FileData
|
|
)
|
|
{
|
|
EFI_STATUS Status;
|
|
UINTN Index;
|
|
EFI_FFS_FILE_HEADER *PadFileHeader;
|
|
EFI_FFS_FILE_HEADER *FileHeader;
|
|
UINTN TotalSize;
|
|
LIST_ENTRY NewFileList;
|
|
FFS_FILE_LIST_ENTRY *NewFileListEntry;
|
|
UINTN Offset;
|
|
UINTN NumBytesWritten;
|
|
UINT8 *StartPos;
|
|
|
|
InitializeListHead (&NewFileList);
|
|
|
|
NewFileListEntry = NULL;
|
|
|
|
TotalSize = 0;
|
|
StartPos = FreeSpaceEntry->StartingAddress;
|
|
PadFileHeader = (EFI_FFS_FILE_HEADER *) StartPos;
|
|
FileHeader = PadFileHeader;
|
|
|
|
for (Index = 0; Index < NumOfFiles; Index++) {
|
|
if (PadSize[Index] != 0) {
|
|
FvFillPadFile (PadFileHeader, PadSize[Index]);
|
|
NewFileListEntry = AllocatePool (sizeof (FFS_FILE_LIST_ENTRY));
|
|
if (NewFileListEntry == NULL) {
|
|
FreeFileList (&NewFileList);
|
|
return EFI_OUT_OF_RESOURCES;
|
|
}
|
|
|
|
NewFileListEntry->FfsHeader = (UINT8 *) PadFileHeader;
|
|
InsertTailList (&NewFileList, &NewFileListEntry->Link);
|
|
}
|
|
|
|
FileHeader = (EFI_FFS_FILE_HEADER *) ((UINT8 *) PadFileHeader + PadSize[Index]);
|
|
Status = FvFillFfsFile (
|
|
FileHeader,
|
|
FfsBuffer[Index],
|
|
BufferSize[Index],
|
|
ActualFileSize[Index],
|
|
FileData[Index].NameGuid,
|
|
FileData[Index].Type,
|
|
FileData[Index].FileAttributes
|
|
);
|
|
if (EFI_ERROR (Status)) {
|
|
FreeFileList (&NewFileList);
|
|
return Status;
|
|
}
|
|
|
|
NewFileListEntry = AllocatePool (sizeof (FFS_FILE_LIST_ENTRY));
|
|
if (NewFileListEntry == NULL) {
|
|
FreeFileList (&NewFileList);
|
|
return EFI_OUT_OF_RESOURCES;
|
|
}
|
|
|
|
NewFileListEntry->FfsHeader = (UINT8 *) FileHeader;
|
|
InsertTailList (&NewFileList, &NewFileListEntry->Link);
|
|
|
|
PadFileHeader = (EFI_FFS_FILE_HEADER *) ((UINT8 *) FileHeader + BufferSize[Index]);
|
|
TotalSize += PadSize[Index];
|
|
TotalSize += BufferSize[Index];
|
|
}
|
|
|
|
if (FreeSpaceEntry->Length < TotalSize) {
|
|
FreeFileList (&NewFileList);
|
|
return EFI_OUT_OF_RESOURCES;
|
|
}
|
|
|
|
FvDevice->CurrentFfsFile = NewFileListEntry;
|
|
|
|
//
|
|
// Start writing to FV
|
|
//
|
|
Offset = (UINTN) (StartPos - FvDevice->CachedFv);
|
|
|
|
NumBytesWritten = TotalSize;
|
|
Status = FvcWrite (
|
|
FvDevice,
|
|
Offset,
|
|
&NumBytesWritten,
|
|
StartPos
|
|
);
|
|
if (EFI_ERROR (Status)) {
|
|
FreeFileList (&NewFileList);
|
|
FvDevice->CurrentFfsFile = NULL;
|
|
return Status;
|
|
}
|
|
|
|
FreeSpaceEntry->Length -= TotalSize;
|
|
FreeSpaceEntry->StartingAddress += TotalSize;
|
|
|
|
NewFileListEntry = (FFS_FILE_LIST_ENTRY *) (NewFileList.ForwardLink);
|
|
|
|
while (NewFileListEntry != (FFS_FILE_LIST_ENTRY *) &NewFileList) {
|
|
InsertTailList (&FvDevice->FfsFileListHeader, &NewFileListEntry->Link);
|
|
NewFileListEntry = (FFS_FILE_LIST_ENTRY *) (NewFileListEntry->Link.ForwardLink);
|
|
}
|
|
|
|
return EFI_SUCCESS;
|
|
}
|
|
|
|
/**
|
|
Write multiple files into FV in reliable method.
|
|
|
|
@param FvDevice Firmware Volume Device.
|
|
@param NumOfFiles Total File number to be written.
|
|
@param FileData The array of EFI_FV_WRITE_FILE_DATA structure,
|
|
used to get name, attributes, type, etc
|
|
@param FileOperation The array of operation for each file.
|
|
|
|
@retval EFI_SUCCESS Files are added into FV.
|
|
@retval EFI_OUT_OF_RESOURCES No enough free PAD files to add the input files.
|
|
@retval EFI_INVALID_PARAMETER File number is less than or equal to 1.
|
|
@retval EFI_UNSUPPORTED File number exceeds the supported max numbers of files.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
FvCreateMultipleFiles (
|
|
IN FV_DEVICE *FvDevice,
|
|
IN UINTN NumOfFiles,
|
|
IN EFI_FV_WRITE_FILE_DATA *FileData,
|
|
IN BOOLEAN *FileOperation
|
|
)
|
|
{
|
|
EFI_STATUS Status;
|
|
UINT8 *FfsBuffer[MAX_FILES];
|
|
UINTN Index1;
|
|
UINTN Index2;
|
|
UINTN BufferSize[MAX_FILES];
|
|
UINTN ActualFileSize[MAX_FILES];
|
|
UINTN RequiredAlignment[MAX_FILES];
|
|
UINTN PadSize[MAX_FILES];
|
|
FFS_FILE_LIST_ENTRY *PadFileEntry;
|
|
UINTN TotalSizeNeeded;
|
|
FREE_SPACE_ENTRY *FreeSpaceEntry;
|
|
EFI_FIRMWARE_VOLUME2_PROTOCOL *Fv;
|
|
UINTN Key;
|
|
EFI_GUID FileNameGuid;
|
|
EFI_FV_FILETYPE OldFileType;
|
|
EFI_FV_FILE_ATTRIBUTES OldFileAttributes;
|
|
UINTN OldFileSize;
|
|
FFS_FILE_LIST_ENTRY *OldFfsFileEntry[MAX_FILES];
|
|
EFI_FFS_FILE_HEADER *OldFileHeader[MAX_FILES];
|
|
BOOLEAN IsCreateFile;
|
|
UINTN HeaderSize;
|
|
|
|
//
|
|
// To use this function, we must ensure that the NumOfFiles is great
|
|
// than 1
|
|
//
|
|
if (NumOfFiles <= 1) {
|
|
return EFI_INVALID_PARAMETER;
|
|
}
|
|
|
|
if (NumOfFiles > MAX_FILES) {
|
|
return EFI_UNSUPPORTED;
|
|
}
|
|
|
|
Fv = &FvDevice->Fv;
|
|
|
|
SetMem (FfsBuffer, NumOfFiles, 0);
|
|
SetMem (RequiredAlignment, NumOfFiles, 8);
|
|
SetMem (PadSize, NumOfFiles, 0);
|
|
ZeroMem (OldFfsFileEntry, sizeof (OldFfsFileEntry));
|
|
ZeroMem (OldFileHeader, sizeof (OldFileHeader));
|
|
|
|
//
|
|
// Adjust file size
|
|
//
|
|
for (Index1 = 0; Index1 < NumOfFiles; Index1++) {
|
|
HeaderSize = sizeof (EFI_FFS_FILE_HEADER);
|
|
ActualFileSize[Index1] = FileData[Index1].BufferSize + HeaderSize;
|
|
if (ActualFileSize[Index1] > 0x00FFFFFF) {
|
|
HeaderSize = sizeof (EFI_FFS_FILE_HEADER2);
|
|
ActualFileSize[Index1] = FileData[Index1].BufferSize + HeaderSize;
|
|
}
|
|
BufferSize[Index1] = ActualFileSize[Index1];
|
|
|
|
if (BufferSize[Index1] == HeaderSize) {
|
|
//
|
|
// clear file attributes, zero-length file does not have any attributes
|
|
//
|
|
FileData[Index1].FileAttributes = 0;
|
|
}
|
|
|
|
while ((BufferSize[Index1] & 0x07) != 0) {
|
|
BufferSize[Index1]++;
|
|
}
|
|
|
|
FfsBuffer[Index1] = AllocateZeroPool (BufferSize[Index1]);
|
|
|
|
//
|
|
// Copy File Data into FileBuffer
|
|
//
|
|
CopyMem (
|
|
FfsBuffer[Index1] + HeaderSize,
|
|
FileData[Index1].Buffer,
|
|
FileData[Index1].BufferSize
|
|
);
|
|
|
|
if (FvDevice->ErasePolarity == 1) {
|
|
for (Index2 = 0; Index2 < HeaderSize; Index2++) {
|
|
FfsBuffer[Index1][Index2] = (UINT8)~FfsBuffer[Index1][Index2];
|
|
}
|
|
}
|
|
|
|
if ((FileData[Index1].FileAttributes & EFI_FV_FILE_ATTRIB_ALIGNMENT) != 0) {
|
|
RequiredAlignment[Index1] = GetRequiredAlignment (FileData[Index1].FileAttributes);
|
|
}
|
|
//
|
|
// If update file, mark the original file header to
|
|
// EFI_FILE_MARKED_FOR_UPDATE
|
|
//
|
|
IsCreateFile = FileOperation[Index1];
|
|
if (!IsCreateFile) {
|
|
|
|
Key = 0;
|
|
do {
|
|
OldFileType = 0;
|
|
Status = Fv->GetNextFile (
|
|
Fv,
|
|
&Key,
|
|
&OldFileType,
|
|
&FileNameGuid,
|
|
&OldFileAttributes,
|
|
&OldFileSize
|
|
);
|
|
if (EFI_ERROR (Status)) {
|
|
FreeFfsBuffer (NumOfFiles, FfsBuffer);
|
|
return Status;
|
|
}
|
|
} while (!CompareGuid (&FileNameGuid, FileData[Index1].NameGuid));
|
|
|
|
//
|
|
// Get FfsFileEntry from the search key
|
|
//
|
|
OldFfsFileEntry[Index1] = (FFS_FILE_LIST_ENTRY *) Key;
|
|
OldFileHeader[Index1] = (EFI_FFS_FILE_HEADER *) OldFfsFileEntry[Index1]->FfsHeader;
|
|
Status = UpdateHeaderBit (
|
|
FvDevice,
|
|
OldFileHeader[Index1],
|
|
EFI_FILE_MARKED_FOR_UPDATE
|
|
);
|
|
if (EFI_ERROR (Status)) {
|
|
FreeFfsBuffer (NumOfFiles, FfsBuffer);
|
|
return Status;
|
|
}
|
|
}
|
|
}
|
|
//
|
|
// First to search a suitable pad file that can hold so
|
|
// many files
|
|
//
|
|
Status = FvSearchSuitablePadFile (
|
|
FvDevice,
|
|
NumOfFiles,
|
|
BufferSize,
|
|
RequiredAlignment,
|
|
PadSize,
|
|
&TotalSizeNeeded,
|
|
&PadFileEntry
|
|
);
|
|
|
|
if (Status == EFI_NOT_FOUND) {
|
|
//
|
|
// Try to find a free space that can hold these files
|
|
//
|
|
Status = FvSearchSuitableFreeSpace (
|
|
FvDevice,
|
|
NumOfFiles,
|
|
BufferSize,
|
|
RequiredAlignment,
|
|
PadSize,
|
|
&TotalSizeNeeded,
|
|
&FreeSpaceEntry
|
|
);
|
|
if (EFI_ERROR (Status)) {
|
|
FreeFfsBuffer (NumOfFiles, FfsBuffer);
|
|
return EFI_OUT_OF_RESOURCES;
|
|
}
|
|
Status = FvCreateMultipleFilesInsideFreeSpace (
|
|
FvDevice,
|
|
FreeSpaceEntry,
|
|
NumOfFiles,
|
|
BufferSize,
|
|
ActualFileSize,
|
|
PadSize,
|
|
FfsBuffer,
|
|
FileData
|
|
);
|
|
|
|
} else {
|
|
//
|
|
// Create multiple files inside such a pad file
|
|
// to achieve lock-step update
|
|
//
|
|
Status = FvCreateMultipleFilesInsidePadFile (
|
|
FvDevice,
|
|
PadFileEntry,
|
|
NumOfFiles,
|
|
BufferSize,
|
|
ActualFileSize,
|
|
PadSize,
|
|
FfsBuffer,
|
|
FileData
|
|
);
|
|
}
|
|
|
|
FreeFfsBuffer (NumOfFiles, FfsBuffer);
|
|
|
|
if (EFI_ERROR (Status)) {
|
|
return Status;
|
|
}
|
|
//
|
|
// Delete those updated files
|
|
//
|
|
for (Index1 = 0; Index1 < NumOfFiles; Index1++) {
|
|
IsCreateFile = FileOperation[Index1];
|
|
if (!IsCreateFile && OldFfsFileEntry[Index1] != NULL) {
|
|
(OldFfsFileEntry[Index1]->Link.BackLink)->ForwardLink = OldFfsFileEntry[Index1]->Link.ForwardLink;
|
|
(OldFfsFileEntry[Index1]->Link.ForwardLink)->BackLink = OldFfsFileEntry[Index1]->Link.BackLink;
|
|
FreePool (OldFfsFileEntry[Index1]);
|
|
}
|
|
}
|
|
//
|
|
// Set those files' state to EFI_FILE_DELETED
|
|
//
|
|
for (Index1 = 0; Index1 < NumOfFiles; Index1++) {
|
|
IsCreateFile = FileOperation[Index1];
|
|
if (!IsCreateFile && OldFileHeader[Index1] != NULL) {
|
|
Status = UpdateHeaderBit (FvDevice, OldFileHeader[Index1], EFI_FILE_DELETED);
|
|
if (EFI_ERROR (Status)) {
|
|
return Status;
|
|
}
|
|
}
|
|
}
|
|
|
|
return EFI_SUCCESS;
|
|
}
|