* [RFC] [patch] Merge MdeModulePkg\BaseTianoCustomDecompressLib into MdePkg\BaseUefiDecompressLib @ 2019-04-30 8:58 Dandan Bi 2019-04-30 21:35 ` Leif Lindholm 2019-05-05 5:26 ` Liming Gao 0 siblings, 2 replies; 5+ messages in thread From: Dandan Bi @ 2019-04-30 8:58 UTC (permalink / raw) To: devel Cc: Michael D Kinney, Liming Gao, Jian J Wang, Hao Wu, Ray Ni, Zailiang Sun, Yi Qian, Ard Biesheuvel, Leif Lindholm BaseUefiDecompressLib in MdePkg implements the UEFI Decompress algorithm. BaseUefiTianoCustomDecompressLib in MdeModulePkg implements the UEFI Decompress algorithm and Tiano Custom Decompression algorithm. Tiano custom decompression algorithm shares most of the code with the UEFI Decompress algorithm. So BaseUefiDecompressLib and BaseUefiTianoCustomDecompressLib have lots common code. We plan to merge the MdeModulePkg\BaseTianoCustomDecompressLib into MdePkg\BaseUefiDecompressLib, in order to reduce the duplicated codes and maintain these two Decompress algorithms easily. Propose to update: 1. Make the implemtations of these two Decompress algorithms in exstring MdePkg/Library/BaseUefiDecompressLib. 2. keep existing BaseUefiDecompressLib.inf in MdePkg/Library/BaseUefiDecompressLib for UEFI Decompress algorithm. 3. Add BaseTianoCustomDecompressLib.inf in MdePkg/Library/BaseUefiDecompressLib for Tiano Custom Decompression algorithm. 4. Make existing BaseUefiDecompressLib.c in MdePkg/Library/BaseUefiDecompressLib to support the Tiano Custom Decompression algorithm besides existing UEFI Decompress algorithm. 5. Remove the gTianoCustomDecompressGuid header file from MdeModulePkg/Include/Guid/TianoDecompress.h Move the gTianoCustomDecompressGuid definition from MdeModulePkg.dec to MdePkg.dec. 6. Remove the MdeModulePkg/Library/BaseUefiTianoCustomDecompressLib from edk2. The draf updates are covered by this patch. Impact analysis: 1. No impact to the usage of BaseUefiDecompressLib. 2. Need to update the consumers of MdeModulePkg/Library/BaseUefiTianoCustomDecompressLib/BaseUefiTianoCustomDecompressLib.inf to use MdePkg/Library/BaseUefiDecompressLib/BaseTianoCustomDecompressLib.inf 3. Current impacted platforms: edk2 repo: Nt32Pkg Quark vlv2tbltdevicepkg edk2-platforms repo: AMD Overdrive Lemaker Cello Raspberry Pi3 SoftIron 1000 D03/D05/D06 Hikey/Hikey960 For platforms in edk2 repo, we can add the BaseTianoCustomDecompressLib.inf in MdePkg/Library/BaseUefiDecompressLib firstly and then update platform consumers, remove the MdeModulePkg/Library/BaseUefiTianoCustomDecompressLib at last. For the platforms in edk2-platforms repo, I find they don't use the Tiano Custom Decompression algorithm actually. So we can update them to use the MdePkg/Library/BaseUefiDecompressLib/BaseUefiDecompressLib.inf firstly to avoid any imconpatible changes. Cc: Michael D Kinney <michael.d.kinney@intel.com> Cc: Liming Gao <liming.gao@intel.com> Cc: Jian J Wang <jian.j.wang@intel.com> Cc: Hao Wu <hao.a.wu@intel.com> Cc: Ray Ni <ray.ni@intel.com> Cc: Zailiang Sun <zailiang.sun@intel.com> Cc: Yi Qian <yi.qian@intel.com> Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org> Cc: Leif Lindholm <leif.lindholm@linaro.org> Signed-off-by: Dandan Bi <dandan.bi@intel.com> --- MdeModulePkg/Include/Guid/TianoDecompress.h | 22 - .../BaseUefiTianoCustomDecompressLib.c | 1063 ----------------- ...aseUefiTianoCustomDecompressLibInternals.h | 214 ---- .../BaseUefiTianoDecompressLib.uni | 16 - MdeModulePkg/MdeModulePkg.dec | 4 - MdeModulePkg/MdeModulePkg.dsc | 1 - .../BaseTianoCustomDecompressLib.inf | 5 +- .../BaseUefiDecompressLib.c | 261 +++- .../BaseUefiDecompressLib.inf | 2 + .../BaseUefiDecompressLib.uni | 6 +- MdePkg/MdePkg.dec | 5 + MdePkg/MdePkg.dsc | 1 + 12 files changed, 270 insertions(+), 1330 deletions(-) delete mode 100644 MdeModulePkg/Include/Guid/TianoDecompress.h delete mode 100644 MdeModulePkg/Library/BaseUefiTianoCustomDecompressLib/BaseUefiTianoCustomDecompressLib.c delete mode 100644 MdeModulePkg/Library/BaseUefiTianoCustomDecompressLib/BaseUefiTianoCustomDecompressLibInternals.h delete mode 100644 MdeModulePkg/Library/BaseUefiTianoCustomDecompressLib/BaseUefiTianoDecompressLib.uni rename MdeModulePkg/Library/BaseUefiTianoCustomDecompressLib/BaseUefiTianoCustomDecompressLib.inf => MdePkg/Library/BaseUefiDecompressLib/BaseTianoCustomDecompressLib.inf (88%) diff --git a/MdeModulePkg/Include/Guid/TianoDecompress.h b/MdeModulePkg/Include/Guid/TianoDecompress.h deleted file mode 100644 index 40f74f88f3..0000000000 --- a/MdeModulePkg/Include/Guid/TianoDecompress.h +++ /dev/null @@ -1,22 +0,0 @@ -/** @file - Tiano Custom decompress Guid definition. - -Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR> -SPDX-License-Identifier: BSD-2-Clause-Patent - -**/ - -#ifndef __TIANO_CUSTOM_DECOMPRESS_GUID_H__ -#define __TIANO_CUSTOM_DECOMPRESS_GUID_H__ - -/// -/// The Global ID used to identify a section of an FFS file of type -/// EFI_SECTION_GUID_DEFINED, whose contents have been compressed using -/// Tiano Custom compression. -/// -#define TIANO_CUSTOM_DECOMPRESS_GUID \ - { 0xA31280AD, 0x481E, 0x41B6, { 0x95, 0xE8, 0x12, 0x7F, 0x4C, 0x98, 0x47, 0x79 } } - -extern GUID gTianoCustomDecompressGuid; - -#endif diff --git a/MdeModulePkg/Library/BaseUefiTianoCustomDecompressLib/BaseUefiTianoCustomDecompressLib.c b/MdeModulePkg/Library/BaseUefiTianoCustomDecompressLib/BaseUefiTianoCustomDecompressLib.c deleted file mode 100644 index 38b66b1906..0000000000 --- a/MdeModulePkg/Library/BaseUefiTianoCustomDecompressLib/BaseUefiTianoCustomDecompressLib.c +++ /dev/null @@ -1,1063 +0,0 @@ -/** @file - UEFI and Tiano Custom Decompress Library - It will do Tiano or UEFI decompress with different verison parameter. - -Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR> -SPDX-License-Identifier: BSD-2-Clause-Patent - -**/ - -#include "BaseUefiTianoCustomDecompressLibInternals.h" - -/** - Shift mBitBuf NumOfBits left. Read in NumOfBits of bits from source. - - @param Sd The global scratch data - @param NumOfBits The number of bits to shift and read. -**/ -VOID -FillBuf ( - IN SCRATCH_DATA *Sd, - IN UINT16 NumOfBits - ) -{ - // - // Left shift NumOfBits of bits in advance - // - Sd->mBitBuf = (UINT32) LShiftU64 (((UINT64)Sd->mBitBuf), NumOfBits); - - // - // Copy data needed in bytes into mSbuBitBuf - // - while (NumOfBits > Sd->mBitCount) { - NumOfBits = (UINT16) (NumOfBits - Sd->mBitCount); - Sd->mBitBuf |= (UINT32) LShiftU64 (((UINT64)Sd->mSubBitBuf), NumOfBits); - - if (Sd->mCompSize > 0) { - // - // Get 1 byte into SubBitBuf - // - Sd->mCompSize--; - Sd->mSubBitBuf = 0; - Sd->mSubBitBuf = Sd->mSrcBase[Sd->mInBuf++]; - Sd->mBitCount = 8; - - } else { - // - // No more bits from the source, just pad zero bit. - // - Sd->mSubBitBuf = 0; - Sd->mBitCount = 8; - - } - } - - // - // Calculate additional bit count read to update mBitCount - // - Sd->mBitCount = (UINT16) (Sd->mBitCount - NumOfBits); - - // - // Copy NumOfBits of bits from mSubBitBuf into mBitBuf - // - Sd->mBitBuf |= Sd->mSubBitBuf >> Sd->mBitCount; -} - -/** - Get NumOfBits of bits out from mBitBuf - - Get NumOfBits of bits out from mBitBuf. Fill mBitBuf with subsequent - NumOfBits of bits from source. Returns NumOfBits of bits that are - popped out. - - @param Sd The global scratch data. - @param NumOfBits The number of bits to pop and read. - - @return The bits that are popped out. - -**/ -UINT32 -GetBits ( - IN SCRATCH_DATA *Sd, - IN UINT16 NumOfBits - ) -{ - UINT32 OutBits; - - // - // Pop NumOfBits of Bits from Left - // - OutBits = (UINT32) (Sd->mBitBuf >> (BITBUFSIZ - NumOfBits)); - - // - // Fill up mBitBuf from source - // - FillBuf (Sd, NumOfBits); - - return OutBits; -} - -/** - Creates Huffman Code mapping table according to code length array. - - Creates Huffman Code mapping table for Extra Set, Char&Len Set - and Position Set according to code length array. - If TableBits > 16, then ASSERT (). - - @param Sd The global scratch data - @param NumOfChar Number of symbols in the symbol set - @param BitLen Code length array - @param TableBits The width of the mapping table - @param Table The table to be created. - - @retval 0 OK. - @retval BAD_TABLE The table is corrupted. - -**/ -UINT16 -MakeTable ( - IN SCRATCH_DATA *Sd, - IN UINT16 NumOfChar, - IN UINT8 *BitLen, - IN UINT16 TableBits, - OUT UINT16 *Table - ) -{ - UINT16 Count[17]; - UINT16 Weight[17]; - UINT16 Start[18]; - UINT16 *Pointer; - UINT16 Index3; - UINT16 Index; - UINT16 Len; - UINT16 Char; - UINT16 JuBits; - UINT16 Avail; - UINT16 NextCode; - UINT16 Mask; - UINT16 WordOfStart; - UINT16 WordOfCount; - UINT16 MaxTableLength; - - // - // The maximum mapping table width supported by this internal - // working function is 16. - // - ASSERT (TableBits <= 16); - - for (Index = 0; Index <= 16; Index++) { - Count[Index] = 0; - } - - for (Index = 0; Index < NumOfChar; Index++) { - if (BitLen[Index] > 16) { - return (UINT16) BAD_TABLE; - } - Count[BitLen[Index]]++; - } - - Start[0] = 0; - Start[1] = 0; - - for (Index = 1; Index <= 16; Index++) { - WordOfStart = Start[Index]; - WordOfCount = Count[Index]; - Start[Index + 1] = (UINT16) (WordOfStart + (WordOfCount << (16 - Index))); - } - - if (Start[17] != 0) { - /*(1U << 16)*/ - return (UINT16) BAD_TABLE; - } - - JuBits = (UINT16) (16 - TableBits); - - Weight[0] = 0; - for (Index = 1; Index <= TableBits; Index++) { - Start[Index] >>= JuBits; - Weight[Index] = (UINT16) (1U << (TableBits - Index)); - } - - while (Index <= 16) { - Weight[Index] = (UINT16) (1U << (16 - Index)); - Index++; - } - - Index = (UINT16) (Start[TableBits + 1] >> JuBits); - - if (Index != 0) { - Index3 = (UINT16) (1U << TableBits); - if (Index < Index3) { - SetMem16 (Table + Index, (Index3 - Index) * sizeof (*Table), 0); - } - } - - Avail = NumOfChar; - Mask = (UINT16) (1U << (15 - TableBits)); - MaxTableLength = (UINT16) (1U << TableBits); - - for (Char = 0; Char < NumOfChar; Char++) { - - Len = BitLen[Char]; - if (Len == 0 || Len >= 17) { - continue; - } - - NextCode = (UINT16) (Start[Len] + Weight[Len]); - - if (Len <= TableBits) { - - for (Index = Start[Len]; Index < NextCode; Index++) { - if (Index >= MaxTableLength) { - return (UINT16) BAD_TABLE; - } - Table[Index] = Char; - } - - } else { - - Index3 = Start[Len]; - Pointer = &Table[Index3 >> JuBits]; - Index = (UINT16) (Len - TableBits); - - while (Index != 0) { - if (*Pointer == 0 && Avail < (2 * NC - 1)) { - Sd->mRight[Avail] = Sd->mLeft[Avail] = 0; - *Pointer = Avail++; - } - - if (*Pointer < (2 * NC - 1)) { - if ((Index3 & Mask) != 0) { - Pointer = &Sd->mRight[*Pointer]; - } else { - Pointer = &Sd->mLeft[*Pointer]; - } - } - - Index3 <<= 1; - Index--; - } - - *Pointer = Char; - - } - - Start[Len] = NextCode; - } - // - // Succeeds - // - return 0; -} - -/** - Decodes a position value. - - Get a position value according to Position Huffman Table. - - @param Sd the global scratch data - - @return The position value decoded. -**/ -UINT32 -DecodeP ( - IN SCRATCH_DATA *Sd - ) -{ - UINT16 Val; - UINT32 Mask; - UINT32 Pos; - - Val = Sd->mPTTable[Sd->mBitBuf >> (BITBUFSIZ - 8)]; - - if (Val >= MAXNP) { - Mask = 1U << (BITBUFSIZ - 1 - 8); - - do { - - if ((Sd->mBitBuf & Mask) != 0) { - Val = Sd->mRight[Val]; - } else { - Val = Sd->mLeft[Val]; - } - - Mask >>= 1; - } while (Val >= MAXNP); - } - // - // Advance what we have read - // - FillBuf (Sd, Sd->mPTLen[Val]); - - Pos = Val; - if (Val > 1) { - Pos = (UINT32) ((1U << (Val - 1)) + GetBits (Sd, (UINT16) (Val - 1))); - } - - return Pos; -} - -/** - Reads code lengths for the Extra Set or the Position Set. - - Read in the Extra Set or Position Set Length Array, then - generate the Huffman code mapping for them. - - @param Sd The global scratch data. - @param nn Number of symbols. - @param nbit Number of bits needed to represent nn. - @param Special The special symbol that needs to be taken care of. - - @retval 0 OK. - @retval BAD_TABLE Table is corrupted. - -**/ -UINT16 -ReadPTLen ( - IN SCRATCH_DATA *Sd, - IN UINT16 nn, - IN UINT16 nbit, - IN UINT16 Special - ) -{ - UINT16 Number; - UINT16 CharC; - UINT16 Index; - UINT32 Mask; - - ASSERT (nn <= NPT); - // - // Read Extra Set Code Length Array size - // - Number = (UINT16) GetBits (Sd, nbit); - - if (Number == 0) { - // - // This represents only Huffman code used - // - CharC = (UINT16) GetBits (Sd, nbit); - - for (Index = 0; Index < 256; Index++) { - Sd->mPTTable[Index] = CharC; - } - - SetMem (Sd->mPTLen, nn, 0); - - return 0; - } - - Index = 0; - - while (Index < Number && Index < NPT) { - - CharC = (UINT16) (Sd->mBitBuf >> (BITBUFSIZ - 3)); - - // - // If a code length is less than 7, then it is encoded as a 3-bit - // value. Or it is encoded as a series of "1"s followed by a - // terminating "0". The number of "1"s = Code length - 4. - // - if (CharC == 7) { - Mask = 1U << (BITBUFSIZ - 1 - 3); - while (Mask & Sd->mBitBuf) { - Mask >>= 1; - CharC += 1; - } - } - - FillBuf (Sd, (UINT16) ((CharC < 7) ? 3 : CharC - 3)); - - Sd->mPTLen[Index++] = (UINT8) CharC; - - // - // For Code&Len Set, - // After the third length of the code length concatenation, - // a 2-bit value is used to indicated the number of consecutive - // zero lengths after the third length. - // - if (Index == Special) { - CharC = (UINT16) GetBits (Sd, 2); - while ((INT16) (--CharC) >= 0 && Index < NPT) { - Sd->mPTLen[Index++] = 0; - } - } - } - - while (Index < nn && Index < NPT) { - Sd->mPTLen[Index++] = 0; - } - - return MakeTable (Sd, nn, Sd->mPTLen, 8, Sd->mPTTable); -} - -/** - Reads code lengths for Char&Len Set. - - Read in and decode the Char&Len Set Code Length Array, then - generate the Huffman Code mapping table for the Char&Len Set. - - @param Sd the global scratch data - -**/ -VOID -ReadCLen ( - SCRATCH_DATA *Sd - ) -{ - UINT16 Number; - UINT16 CharC; - UINT16 Index; - UINT32 Mask; - - Number = (UINT16) GetBits (Sd, CBIT); - - if (Number == 0) { - // - // This represents only Huffman code used - // - CharC = (UINT16) GetBits (Sd, CBIT); - - SetMem (Sd->mCLen, NC, 0); - - for (Index = 0; Index < 4096; Index++) { - Sd->mCTable[Index] = CharC; - } - - return ; - } - - Index = 0; - while (Index < Number && Index < NC) { - CharC = Sd->mPTTable[Sd->mBitBuf >> (BITBUFSIZ - 8)]; - if (CharC >= NT) { - Mask = 1U << (BITBUFSIZ - 1 - 8); - - do { - - if (Mask & Sd->mBitBuf) { - CharC = Sd->mRight[CharC]; - } else { - CharC = Sd->mLeft[CharC]; - } - - Mask >>= 1; - - } while (CharC >= NT); - } - // - // Advance what we have read - // - FillBuf (Sd, Sd->mPTLen[CharC]); - - if (CharC <= 2) { - - if (CharC == 0) { - CharC = 1; - } else if (CharC == 1) { - CharC = (UINT16) (GetBits (Sd, 4) + 3); - } else if (CharC == 2) { - CharC = (UINT16) (GetBits (Sd, CBIT) + 20); - } - - while ((INT16) (--CharC) >= 0 && Index < NC) { - Sd->mCLen[Index++] = 0; - } - - } else { - - Sd->mCLen[Index++] = (UINT8) (CharC - 2); - - } - } - - SetMem (Sd->mCLen + Index, NC - Index, 0); - - MakeTable (Sd, NC, Sd->mCLen, 12, Sd->mCTable); - - return ; -} - -/** - Decode a character/length value. - - Read one value from mBitBuf, Get one code from mBitBuf. If it is at block boundary, generates - Huffman code mapping table for Extra Set, Code&Len Set and - Position Set. - - @param Sd The global scratch data. - - @return The value decoded. - -**/ -UINT16 -DecodeC ( - SCRATCH_DATA *Sd - ) -{ - UINT16 Index2; - UINT32 Mask; - - if (Sd->mBlockSize == 0) { - // - // Starting a new block - // Read BlockSize from block header - // - Sd->mBlockSize = (UINT16) GetBits (Sd, 16); - - // - // Read in the Extra Set Code Length Array, - // Generate the Huffman code mapping table for Extra Set. - // - Sd->mBadTableFlag = ReadPTLen (Sd, NT, TBIT, 3); - if (Sd->mBadTableFlag != 0) { - return 0; - } - - // - // Read in and decode the Char&Len Set Code Length Array, - // Generate the Huffman code mapping table for Char&Len Set. - // - ReadCLen (Sd); - - // - // Read in the Position Set Code Length Array, - // Generate the Huffman code mapping table for the Position Set. - // - Sd->mBadTableFlag = ReadPTLen (Sd, MAXNP, Sd->mPBit, (UINT16) (-1)); - if (Sd->mBadTableFlag != 0) { - return 0; - } - } - - // - // Get one code according to Code&Set Huffman Table - // - Sd->mBlockSize--; - Index2 = Sd->mCTable[Sd->mBitBuf >> (BITBUFSIZ - 12)]; - - if (Index2 >= NC) { - Mask = 1U << (BITBUFSIZ - 1 - 12); - - do { - if ((Sd->mBitBuf & Mask) != 0) { - Index2 = Sd->mRight[Index2]; - } else { - Index2 = Sd->mLeft[Index2]; - } - - Mask >>= 1; - } while (Index2 >= NC); - } - // - // Advance what we have read - // - FillBuf (Sd, Sd->mCLen[Index2]); - - return Index2; -} - -/** - Decode the source data and put the resulting data into the destination buffer. - - @param Sd The global scratch data -**/ -VOID -Decode ( - SCRATCH_DATA *Sd - ) -{ - UINT16 BytesRemain; - UINT32 DataIdx; - UINT16 CharC; - - BytesRemain = (UINT16) (-1); - - DataIdx = 0; - - for (;;) { - // - // Get one code from mBitBuf - // - CharC = DecodeC (Sd); - if (Sd->mBadTableFlag != 0) { - goto Done; - } - - if (CharC < 256) { - // - // Process an Original character - // - if (Sd->mOutBuf >= Sd->mOrigSize) { - goto Done; - } else { - // - // Write orignal character into mDstBase - // - Sd->mDstBase[Sd->mOutBuf++] = (UINT8) CharC; - } - - } else { - // - // Process a Pointer - // - CharC = (UINT16) (CharC - (BIT8 - THRESHOLD)); - - // - // Get string length - // - BytesRemain = CharC; - - // - // Locate string position - // - DataIdx = Sd->mOutBuf - DecodeP (Sd) - 1; - - // - // Write BytesRemain of bytes into mDstBase - // - BytesRemain--; - while ((INT16) (BytesRemain) >= 0) { - if (Sd->mOutBuf >= Sd->mOrigSize) { - goto Done ; - } - if (DataIdx >= Sd->mOrigSize) { - Sd->mBadTableFlag = (UINT16) BAD_TABLE; - goto Done ; - } - Sd->mDstBase[Sd->mOutBuf++] = Sd->mDstBase[DataIdx++]; - - BytesRemain--; - } - // - // Once mOutBuf is fully filled, directly return - // - if (Sd->mOutBuf >= Sd->mOrigSize) { - goto Done ; - } - } - } - -Done: - return ; -} - -/** - Given a compressed source buffer, this function retrieves the size of - the uncompressed buffer and the size of the scratch buffer required - to decompress the compressed source buffer. - - Retrieves the size of the uncompressed buffer and the temporary scratch buffer - required to decompress the buffer specified by Source and SourceSize. - If the size of the uncompressed buffer or the size of the scratch buffer cannot - be determined from the compressed data specified by Source and SourceData, - then RETURN_INVALID_PARAMETER is returned. Otherwise, the size of the uncompressed - buffer is returned in DestinationSize, the size of the scratch buffer is returned - in ScratchSize, and RETURN_SUCCESS is returned. - This function does not have scratch buffer available to perform a thorough - checking of the validity of the source data. It just retrieves the "Original Size" - field from the beginning bytes of the source data and output it as DestinationSize. - And ScratchSize is specific to the decompression implementation. - - If Source is NULL, then ASSERT(). - If DestinationSize is NULL, then ASSERT(). - If ScratchSize is NULL, then ASSERT(). - - @param Source The source buffer containing the compressed data. - @param SourceSize The size, in bytes, of the source buffer. - @param DestinationSize A pointer to the size, in bytes, of the uncompressed buffer - that will be generated when the compressed buffer specified - by Source and SourceSize is decompressed.. - @param ScratchSize A pointer to the size, in bytes, of the scratch buffer that - is required to decompress the compressed buffer specified - by Source and SourceSize. - - @retval RETURN_SUCCESS The size of the uncompressed data was returned - in DestinationSize and the size of the scratch - buffer was returned in ScratchSize. - @retval RETURN_INVALID_PARAMETER - The size of the uncompressed data or the size of - the scratch buffer cannot be determined from - the compressed data specified by Source - and SourceSize. -**/ -RETURN_STATUS -EFIAPI -UefiDecompressGetInfo ( - IN CONST VOID *Source, - IN UINT32 SourceSize, - OUT UINT32 *DestinationSize, - OUT UINT32 *ScratchSize - ) -{ - UINT32 CompressedSize; - - ASSERT (Source != NULL); - ASSERT (DestinationSize != NULL); - ASSERT (ScratchSize != NULL); - - if (SourceSize < 8) { - return RETURN_INVALID_PARAMETER; - } - - CompressedSize = ReadUnaligned32 ((UINT32 *)Source); - if (SourceSize < (CompressedSize + 8) || (CompressedSize + 8) < 8) { - return RETURN_INVALID_PARAMETER; - } - - *ScratchSize = sizeof (SCRATCH_DATA); - *DestinationSize = ReadUnaligned32 ((UINT32 *)Source + 1); - - return RETURN_SUCCESS; -} - -/** - Decompresses a compressed source buffer by EFI or Tiano algorithm. - - Extracts decompressed data to its original form. - This function is designed so that the decompression algorithm can be implemented - without using any memory services. As a result, this function is not allowed to - call any memory allocation services in its implementation. It is the caller's - responsibility to allocate and free the Destination and Scratch buffers. - If the compressed source data specified by Source is successfully decompressed - into Destination, then RETURN_SUCCESS is returned. If the compressed source data - specified by Source is not in a valid compressed data format, - then RETURN_INVALID_PARAMETER is returned. - - If Source is NULL, then ASSERT(). - If Destination is NULL, then ASSERT(). - If the required scratch buffer size > 0 and Scratch is NULL, then ASSERT(). - - @param Source The source buffer containing the compressed data. - @param Destination The destination buffer to store the decompressed data - @param Scratch A temporary scratch buffer that is used to perform the decompression. - This is an optional parameter that may be NULL if the - required scratch buffer size is 0. - @param Version 1 for UEFI Decompress algoruthm, 2 for Tiano Decompess algorithm. - - @retval RETURN_SUCCESS Decompression completed successfully, and - the uncompressed buffer is returned in Destination. - @retval RETURN_INVALID_PARAMETER - The source buffer specified by Source is corrupted - (not in a valid compressed format). -**/ -RETURN_STATUS -EFIAPI -UefiTianoDecompress ( - IN CONST VOID *Source, - IN OUT VOID *Destination, - IN OUT VOID *Scratch, - IN UINT32 Version - ) -{ - UINT32 CompSize; - UINT32 OrigSize; - SCRATCH_DATA *Sd; - CONST UINT8 *Src; - UINT8 *Dst; - - ASSERT (Source != NULL); - ASSERT (Destination != NULL); - ASSERT (Scratch != NULL); - - Src = Source; - Dst = Destination; - - Sd = (SCRATCH_DATA *) Scratch; - - CompSize = Src[0] + (Src[1] << 8) + (Src[2] << 16) + (Src[3] << 24); - OrigSize = Src[4] + (Src[5] << 8) + (Src[6] << 16) + (Src[7] << 24); - - // - // If compressed file size is 0, return - // - if (OrigSize == 0) { - return RETURN_SUCCESS; - } - - Src = Src + 8; - - SetMem (Sd, sizeof (SCRATCH_DATA), 0); - - // - // The length of the field 'Position Set Code Length Array Size' in Block Header. - // For UEFI 2.0 de/compression algorithm(Version 1), mPBit = 4 - // For Tiano de/compression algorithm(Version 2), mPBit = 5 - // - switch (Version) { - case 1 : - Sd->mPBit = 4; - break; - case 2 : - Sd->mPBit = 5; - break; - default: - ASSERT (FALSE); - } - Sd->mSrcBase = (UINT8 *)Src; - Sd->mDstBase = Dst; - // - // CompSize and OrigSize are calculated in bytes - // - Sd->mCompSize = CompSize; - Sd->mOrigSize = OrigSize; - - // - // Fill the first BITBUFSIZ bits - // - FillBuf (Sd, BITBUFSIZ); - - // - // Decompress it - // - Decode (Sd); - - if (Sd->mBadTableFlag != 0) { - // - // Something wrong with the source - // - return RETURN_INVALID_PARAMETER; - } - - return RETURN_SUCCESS; -} - -/** - Decompresses a UEFI compressed source buffer. - - Extracts decompressed data to its original form. - This function is designed so that the decompression algorithm can be implemented - without using any memory services. As a result, this function is not allowed to - call any memory allocation services in its implementation. It is the caller's - responsibility to allocate and free the Destination and Scratch buffers. - If the compressed source data specified by Source is successfully decompressed - into Destination, then RETURN_SUCCESS is returned. If the compressed source data - specified by Source is not in a valid compressed data format, - then RETURN_INVALID_PARAMETER is returned. - - If Source is NULL, then ASSERT(). - If Destination is NULL, then ASSERT(). - If the required scratch buffer size > 0 and Scratch is NULL, then ASSERT(). - - @param Source The source buffer containing the compressed data. - @param Destination The destination buffer to store the decompressed data - @param Scratch A temporary scratch buffer that is used to perform the decompression. - This is an optional parameter that may be NULL if the - required scratch buffer size is 0. - - @retval RETURN_SUCCESS Decompression completed successfully, and - the uncompressed buffer is returned in Destination. - @retval RETURN_INVALID_PARAMETER - The source buffer specified by Source is corrupted - (not in a valid compressed format). -**/ -RETURN_STATUS -EFIAPI -UefiDecompress ( - IN CONST VOID *Source, - IN OUT VOID *Destination, - IN OUT VOID *Scratch OPTIONAL - ) -{ - return UefiTianoDecompress (Source, Destination, Scratch, 1); -} - -/** - Examines a GUIDed section and returns the size of the decoded buffer and the - size of an optional scratch buffer required to actually decode the data in a GUIDed section. - - Examines a GUIDed section specified by InputSection. - If GUID for InputSection does not match the GUID that this handler supports, - then RETURN_UNSUPPORTED is returned. - If the required information can not be retrieved from InputSection, - then RETURN_INVALID_PARAMETER is returned. - If the GUID of InputSection does match the GUID that this handler supports, - then the size required to hold the decoded buffer is returned in OututBufferSize, - the size of an optional scratch buffer is returned in ScratchSize, and the Attributes field - from EFI_GUID_DEFINED_SECTION header of InputSection is returned in SectionAttribute. - - If InputSection is NULL, then ASSERT(). - If OutputBufferSize is NULL, then ASSERT(). - If ScratchBufferSize is NULL, then ASSERT(). - If SectionAttribute is NULL, then ASSERT(). - - - @param[in] InputSection A pointer to a GUIDed section of an FFS formatted file. - @param[out] OutputBufferSize A pointer to the size, in bytes, of an output buffer required - if the buffer specified by InputSection were decoded. - @param[out] ScratchBufferSize A pointer to the size, in bytes, required as scratch space - if the buffer specified by InputSection were decoded. - @param[out] SectionAttribute A pointer to the attributes of the GUIDed section. See the Attributes - field of EFI_GUID_DEFINED_SECTION in the PI Specification. - - @retval RETURN_SUCCESS The information about InputSection was returned. - @retval RETURN_UNSUPPORTED The section specified by InputSection does not match the GUID this handler supports. - @retval RETURN_INVALID_PARAMETER The information can not be retrieved from the section specified by InputSection. - -**/ -RETURN_STATUS -EFIAPI -TianoDecompressGetInfo ( - IN CONST VOID *InputSection, - OUT UINT32 *OutputBufferSize, - OUT UINT32 *ScratchBufferSize, - OUT UINT16 *SectionAttribute - ) - -{ - ASSERT (SectionAttribute != NULL); - - if (InputSection == NULL) { - return RETURN_INVALID_PARAMETER; - } - - if (IS_SECTION2 (InputSection)) { - if (!CompareGuid ( - &gTianoCustomDecompressGuid, - &(((EFI_GUID_DEFINED_SECTION2 *) InputSection)->SectionDefinitionGuid))) { - return RETURN_INVALID_PARAMETER; - } - // - // Get guid attribute of guid section. - // - *SectionAttribute = ((EFI_GUID_DEFINED_SECTION2 *) InputSection)->Attributes; - - // - // Call Tiano GetInfo to get the required size info. - // - return UefiDecompressGetInfo ( - (UINT8 *) InputSection + ((EFI_GUID_DEFINED_SECTION2 *) InputSection)->DataOffset, - SECTION2_SIZE (InputSection) - ((EFI_GUID_DEFINED_SECTION2 *) InputSection)->DataOffset, - OutputBufferSize, - ScratchBufferSize - ); - } else { - if (!CompareGuid ( - &gTianoCustomDecompressGuid, - &(((EFI_GUID_DEFINED_SECTION *) InputSection)->SectionDefinitionGuid))) { - return RETURN_INVALID_PARAMETER; - } - // - // Get guid attribute of guid section. - // - *SectionAttribute = ((EFI_GUID_DEFINED_SECTION *) InputSection)->Attributes; - - // - // Call Tiano GetInfo to get the required size info. - // - return UefiDecompressGetInfo ( - (UINT8 *) InputSection + ((EFI_GUID_DEFINED_SECTION *) InputSection)->DataOffset, - SECTION_SIZE (InputSection) - ((EFI_GUID_DEFINED_SECTION *) InputSection)->DataOffset, - OutputBufferSize, - ScratchBufferSize - ); - } -} - -/** - Decompress a Tiano compressed GUIDed section into a caller allocated output buffer. - - Decodes the GUIDed section specified by InputSection. - If GUID for InputSection does not match the GUID that this handler supports, then RETURN_UNSUPPORTED is returned. - If the data in InputSection can not be decoded, then RETURN_INVALID_PARAMETER is returned. - If the GUID of InputSection does match the GUID that this handler supports, then InputSection - is decoded into the buffer specified by OutputBuffer and the authentication status of this - decode operation is returned in AuthenticationStatus. If the decoded buffer is identical to the - data in InputSection, then OutputBuffer is set to point at the data in InputSection. Otherwise, - the decoded data will be placed in caller allocated buffer specified by OutputBuffer. - - If InputSection is NULL, then ASSERT(). - If OutputBuffer is NULL, then ASSERT(). - If ScratchBuffer is NULL and this decode operation requires a scratch buffer, then ASSERT(). - If AuthenticationStatus is NULL, then ASSERT(). - - - @param[in] InputSection A pointer to a GUIDed section of an FFS formatted file. - @param[out] OutputBuffer A pointer to a buffer that contains the result of a decode operation. - @param[in] ScratchBuffer A caller allocated buffer that may be required by this function - as a scratch buffer to perform the decode operation. - @param[out] AuthenticationStatus - A pointer to the authentication status of the decoded output buffer. - See the definition of authentication status in the EFI_PEI_GUIDED_SECTION_EXTRACTION_PPI - section of the PI Specification. EFI_AUTH_STATUS_PLATFORM_OVERRIDE must - never be set by this handler. - - @retval RETURN_SUCCESS The buffer specified by InputSection was decoded. - @retval RETURN_UNSUPPORTED The section specified by InputSection does not match the GUID this handler supports. - @retval RETURN_INVALID_PARAMETER The section specified by InputSection can not be decoded. - -**/ -RETURN_STATUS -EFIAPI -TianoDecompress ( - IN CONST VOID *InputSection, - OUT VOID **OutputBuffer, - IN VOID *ScratchBuffer, OPTIONAL - OUT UINT32 *AuthenticationStatus - ) -{ - ASSERT (OutputBuffer != NULL); - ASSERT (InputSection != NULL); - - if (IS_SECTION2 (InputSection)) { - if (!CompareGuid ( - &gTianoCustomDecompressGuid, - &(((EFI_GUID_DEFINED_SECTION2 *) InputSection)->SectionDefinitionGuid))) { - return RETURN_INVALID_PARAMETER; - } - - // - // Set Authentication to Zero. - // - *AuthenticationStatus = 0; - - // - // Call Tiano Decompress to get the raw data - // - return UefiTianoDecompress ( - (UINT8 *) InputSection + ((EFI_GUID_DEFINED_SECTION2 *) InputSection)->DataOffset, - *OutputBuffer, - ScratchBuffer, - 2 - ); - } else { - if (!CompareGuid ( - &gTianoCustomDecompressGuid, - &(((EFI_GUID_DEFINED_SECTION *) InputSection)->SectionDefinitionGuid))) { - return RETURN_INVALID_PARAMETER; - } - - // - // Set Authentication to Zero. - // - *AuthenticationStatus = 0; - - // - // Call Tiano Decompress to get the raw data - // - return UefiTianoDecompress ( - (UINT8 *) InputSection + ((EFI_GUID_DEFINED_SECTION *) InputSection)->DataOffset, - *OutputBuffer, - ScratchBuffer, - 2 - ); - } -} - -/** - Registers TianoDecompress and TianoDecompressGetInfo handlers with TianoCustomerDecompressGuid - - @retval RETURN_SUCCESS Register successfully. - @retval RETURN_OUT_OF_RESOURCES No enough memory to store this handler. -**/ -RETURN_STATUS -EFIAPI -TianoDecompressLibConstructor ( - VOID -) -{ - return ExtractGuidedSectionRegisterHandlers ( - &gTianoCustomDecompressGuid, - TianoDecompressGetInfo, - TianoDecompress - ); -} diff --git a/MdeModulePkg/Library/BaseUefiTianoCustomDecompressLib/BaseUefiTianoCustomDecompressLibInternals.h b/MdeModulePkg/Library/BaseUefiTianoCustomDecompressLib/BaseUefiTianoCustomDecompressLibInternals.h deleted file mode 100644 index 846abdb78e..0000000000 --- a/MdeModulePkg/Library/BaseUefiTianoCustomDecompressLib/BaseUefiTianoCustomDecompressLibInternals.h +++ /dev/null @@ -1,214 +0,0 @@ -/** @file - Internal data structure and interfaces defintions for UEFI and Tiano Decompress Library. - - Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR> - SPDX-License-Identifier: BSD-2-Clause-Patent - -**/ - -#ifndef __BASE_UEFI_TIANO_CUSTOM_DECOMPRESS_LIB_INTERNALS_H__ -#define __BASE_UEFI_TIANO_CUSTOM_DECOMPRESS_LIB_INTERNALS_H__ - -#include <PiPei.h> - -#include <Guid/TianoDecompress.h> -#include <Library/BaseLib.h> -#include <Library/UefiDecompressLib.h> -#include <Library/DebugLib.h> -#include <Library/BaseMemoryLib.h> -#include <Library/ExtractGuidedSectionLib.h> - -// -// Decompression algorithm begins here -// -#define BITBUFSIZ 32 -#define MAXMATCH 256 -#define THRESHOLD 3 -#define CODE_BIT 16 -#define BAD_TABLE - 1 - -// -// C: Char&Len Set; P: Position Set; T: exTra Set -// -#define NC (0xff + MAXMATCH + 2 - THRESHOLD) -#define CBIT 9 -#define MAXPBIT 5 -#define TBIT 5 -#define MAXNP ((1U << MAXPBIT) - 1) -#define NT (CODE_BIT + 3) -#if NT > MAXNP -#define NPT NT -#else -#define NPT MAXNP -#endif - -typedef struct { - UINT8 *mSrcBase; // Starting address of compressed data - UINT8 *mDstBase; // Starting address of decompressed data - UINT32 mOutBuf; - UINT32 mInBuf; - - UINT16 mBitCount; - UINT32 mBitBuf; - UINT32 mSubBitBuf; - UINT16 mBlockSize; - UINT32 mCompSize; - UINT32 mOrigSize; - - UINT16 mBadTableFlag; - - UINT16 mLeft[2 * NC - 1]; - UINT16 mRight[2 * NC - 1]; - UINT8 mCLen[NC]; - UINT8 mPTLen[NPT]; - UINT16 mCTable[4096]; - UINT16 mPTTable[256]; - - /// - /// The length of the field 'Position Set Code Length Array Size' in Block Header. - /// For UEFI 2.0 de/compression algorithm, mPBit = 4 - /// For Tiano de/compression algorithm, mPBit = 5 - /// - UINT8 mPBit; -} SCRATCH_DATA; - -/** - Read NumOfBit of bits from source into mBitBuf. - - Shift mBitBuf NumOfBits left. Read in NumOfBits of bits from source. - - @param Sd The global scratch data - @param NumOfBits The number of bits to shift and read. - -**/ -VOID -FillBuf ( - IN SCRATCH_DATA *Sd, - IN UINT16 NumOfBits - ); - -/** - Get NumOfBits of bits out from mBitBuf. - - Get NumOfBits of bits out from mBitBuf. Fill mBitBuf with subsequent - NumOfBits of bits from source. Returns NumOfBits of bits that are - popped out. - - @param Sd The global scratch data. - @param NumOfBits The number of bits to pop and read. - - @return The bits that are popped out. - -**/ -UINT32 -GetBits ( - IN SCRATCH_DATA *Sd, - IN UINT16 NumOfBits - ); - -/** - Creates Huffman Code mapping table according to code length array. - - Creates Huffman Code mapping table for Extra Set, Char&Len Set - and Position Set according to code length array. - - @param Sd The global scratch data - @param NumOfChar Number of symbols in the symbol set - @param BitLen Code length array - @param TableBits The width of the mapping table - @param Table The table to be created. - - @retval 0 OK. - @retval BAD_TABLE The table is corrupted. - -**/ -UINT16 -MakeTable ( - IN SCRATCH_DATA *Sd, - IN UINT16 NumOfChar, - IN UINT8 *BitLen, - IN UINT16 TableBits, - OUT UINT16 *Table - ); - -/** - Decodes a position value. - - Get a position value according to Position Huffman Table. - - @param Sd the global scratch data - - @return The position value decoded. - -**/ -UINT32 -DecodeP ( - IN SCRATCH_DATA *Sd - ); - -/** - Reads code lengths for the Extra Set or the Position Set. - - Read in the Extra Set or Position Set Length Array, then - generate the Huffman code mapping for them. - - @param Sd The global scratch data. - @param nn Number of symbols. - @param nbit Number of bits needed to represent nn. - @param Special The special symbol that needs to be taken care of. - - @retval 0 OK. - @retval BAD_TABLE Table is corrupted. - -**/ -UINT16 -ReadPTLen ( - IN SCRATCH_DATA *Sd, - IN UINT16 nn, - IN UINT16 nbit, - IN UINT16 Special - ); - -/** - Reads code lengths for Char&Len Set. - - Read in and decode the Char&Len Set Code Length Array, then - generate the Huffman Code mapping table for the Char&Len Set. - - @param Sd the global scratch data - -**/ -VOID -ReadCLen ( - SCRATCH_DATA *Sd - ); - -/** - Decode a character/length value. - - Read one value from mBitBuf, Get one code from mBitBuf. If it is at block boundary, generates - Huffman code mapping table for Extra Set, Code&Len Set and - Position Set. - - @param Sd The global scratch data. - - @return The value decoded. - -**/ -UINT16 -DecodeC ( - SCRATCH_DATA *Sd - ); - -/** - Decode the source data and put the resulting data into the destination buffer. - - @param Sd The global scratch data - -**/ -VOID -Decode ( - SCRATCH_DATA *Sd - ); - -#endif diff --git a/MdeModulePkg/Library/BaseUefiTianoCustomDecompressLib/BaseUefiTianoDecompressLib.uni b/MdeModulePkg/Library/BaseUefiTianoCustomDecompressLib/BaseUefiTianoDecompressLib.uni deleted file mode 100644 index c384dacbef..0000000000 --- a/MdeModulePkg/Library/BaseUefiTianoCustomDecompressLib/BaseUefiTianoDecompressLib.uni +++ /dev/null @@ -1,16 +0,0 @@ -// /** @file -// This library instance produces UefiDecompressLib and Tiano Custom decompression algorithm. -// -// Tiano custom decompression algorithm shares most of code with Uefi Decompress algorithm. -// -// Copyright (c) 2006 - 2014, Intel Corporation. All rights reserved.<BR> -// -// SPDX-License-Identifier: BSD-2-Clause-Patent -// -// **/ - - -#string STR_MODULE_ABSTRACT #language en-US "Produces UefiDecompressLib and Tiano Custom decompression algorithm" - -#string STR_MODULE_DESCRIPTION #language en-US "Tiano custom decompression algorithm shares most of the code with the UEFI Decompress algorithm." - diff --git a/MdeModulePkg/MdeModulePkg.dec b/MdeModulePkg/MdeModulePkg.dec index be84916cc0..1261f80537 100644 --- a/MdeModulePkg/MdeModulePkg.dec +++ b/MdeModulePkg/MdeModulePkg.dec @@ -371,14 +371,10 @@ ## GUID indicates the LZMA custom compress/decompress algorithm. # Include/Guid/LzmaDecompress.h gLzmaCustomDecompressGuid = { 0xEE4E5898, 0x3914, 0x4259, { 0x9D, 0x6E, 0xDC, 0x7B, 0xD7, 0x94, 0x03, 0xCF }} gLzmaF86CustomDecompressGuid = { 0xD42AE6BD, 0x1352, 0x4bfb, { 0x90, 0x9A, 0xCA, 0x72, 0xA6, 0xEA, 0xE8, 0x89 }} - ## GUID indicates the tiano custom compress/decompress algorithm. - # Include/Guid/TianoDecompress.h - gTianoCustomDecompressGuid = { 0xA31280AD, 0x481E, 0x41B6, { 0x95, 0xE8, 0x12, 0x7F, 0x4C, 0x98, 0x47, 0x79 }} - ## Include/Guid/TtyTerm.h gEfiTtyTermGuid = { 0x7d916d80, 0x5bb1, 0x458c, {0xa4, 0x8f, 0xe2, 0x5f, 0xdd, 0x51, 0xef, 0x94 }} ## Include/Guid/HiiBootMaintenanceFormset.h gEfiIfrBootMaintenanceGuid = { 0xb2dedc91, 0xd59f, 0x48d2, { 0x89, 0x8a, 0x12, 0x49, 0xc, 0x74, 0xa4, 0xe0 }} diff --git a/MdeModulePkg/MdeModulePkg.dsc b/MdeModulePkg/MdeModulePkg.dsc index b302f4a4f3..0da28e74c2 100644 --- a/MdeModulePkg/MdeModulePkg.dsc +++ b/MdeModulePkg/MdeModulePkg.dsc @@ -311,11 +311,10 @@ MdeModulePkg/Library/FrameBufferBltLib/FrameBufferBltLib.inf MdeModulePkg/Library/NonDiscoverableDeviceRegistrationLib/NonDiscoverableDeviceRegistrationLib.inf MdeModulePkg/Library/BaseBmpSupportLib/BaseBmpSupportLib.inf MdeModulePkg/Library/DisplayUpdateProgressLibGraphics/DisplayUpdateProgressLibGraphics.inf MdeModulePkg/Library/DisplayUpdateProgressLibText/DisplayUpdateProgressLibText.inf - MdeModulePkg/Library/BaseUefiTianoCustomDecompressLib/BaseUefiTianoCustomDecompressLib.inf MdeModulePkg/Universal/BdsDxe/BdsDxe.inf MdeModulePkg/Application/BootManagerMenuApp/BootManagerMenuApp.inf MdeModulePkg/Application/UiApp/UiApp.inf{ <LibraryClasses> diff --git a/MdeModulePkg/Library/BaseUefiTianoCustomDecompressLib/BaseUefiTianoCustomDecompressLib.inf b/MdePkg/Library/BaseUefiDecompressLib/BaseTianoCustomDecompressLib.inf similarity index 88% rename from MdeModulePkg/Library/BaseUefiTianoCustomDecompressLib/BaseUefiTianoCustomDecompressLib.inf rename to MdePkg/Library/BaseUefiDecompressLib/BaseTianoCustomDecompressLib.inf index c9c19d6d3c..5d2b54e2db 100644 --- a/MdeModulePkg/Library/BaseUefiTianoCustomDecompressLib/BaseUefiTianoCustomDecompressLib.inf +++ b/MdePkg/Library/BaseUefiDecompressLib/BaseTianoCustomDecompressLib.inf @@ -23,16 +23,15 @@ # # VALID_ARCHITECTURES = IA32 X64 EBC # [Sources] - BaseUefiTianoCustomDecompressLibInternals.h - BaseUefiTianoCustomDecompressLib.c + BaseUefiDecompressLibInternals.h + BaseUefiDecompressLib.c [Packages] MdePkg/MdePkg.dec - MdeModulePkg/MdeModulePkg.dec [LibraryClasses] BaseLib DebugLib BaseMemoryLib diff --git a/MdePkg/Library/BaseUefiDecompressLib/BaseUefiDecompressLib.c b/MdePkg/Library/BaseUefiDecompressLib/BaseUefiDecompressLib.c index 8e502b0fdb..c390363d14 100644 --- a/MdePkg/Library/BaseUefiDecompressLib/BaseUefiDecompressLib.c +++ b/MdePkg/Library/BaseUefiDecompressLib/BaseUefiDecompressLib.c @@ -5,16 +5,17 @@ Portions copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR> SPDX-License-Identifier: BSD-2-Clause-Patent **/ - +#include <PiPei.h> #include <Base.h> #include <Library/BaseLib.h> #include <Library/DebugLib.h> #include <Library/BaseMemoryLib.h> #include <Library/UefiDecompressLib.h> +#include <Library/ExtractGuidedSectionLib.h> #include "BaseUefiDecompressLibInternals.h" /** Read NumOfBit of bits from source into mBitBuf. @@ -747,14 +748,15 @@ UefiDecompressGetInfo ( The source buffer specified by Source is corrupted (not in a valid compressed format). **/ RETURN_STATUS EFIAPI -UefiDecompress ( +UefiTianoDecompress ( IN CONST VOID *Source, IN OUT VOID *Destination, - IN OUT VOID *Scratch OPTIONAL + IN OUT VOID *Scratch, + IN UINT32 Version ) { UINT32 CompSize; UINT32 OrigSize; SCRATCH_DATA *Sd; @@ -784,12 +786,22 @@ UefiDecompress ( SetMem (Sd, sizeof (SCRATCH_DATA), 0); // // The length of the field 'Position Set Code Length Array Size' in Block Header. // For UEFI 2.0 de/compression algorithm(Version 1), mPBit = 4 + // For Tiano de/compression algorithm(Version 2), mPBit = 5 // - Sd->mPBit = 4; + switch (Version) { + case 1 : + Sd->mPBit = 4; + break; + case 2 : + Sd->mPBit = 5; + break; + default: + ASSERT (FALSE); + } Sd->mSrcBase = (UINT8 *)Src; Sd->mDstBase = Dst; // // CompSize and OrigSize are calculated in bytes // @@ -813,5 +825,246 @@ UefiDecompress ( return RETURN_INVALID_PARAMETER; } return RETURN_SUCCESS; } + +/** + Decompresses a UEFI compressed source buffer. + + Extracts decompressed data to its original form. + This function is designed so that the decompression algorithm can be implemented + without using any memory services. As a result, this function is not allowed to + call any memory allocation services in its implementation. It is the caller's + responsibility to allocate and free the Destination and Scratch buffers. + If the compressed source data specified by Source is successfully decompressed + into Destination, then RETURN_SUCCESS is returned. If the compressed source data + specified by Source is not in a valid compressed data format, + then RETURN_INVALID_PARAMETER is returned. + + If Source is NULL, then ASSERT(). + If Destination is NULL, then ASSERT(). + If the required scratch buffer size > 0 and Scratch is NULL, then ASSERT(). + + @param Source The source buffer containing the compressed data. + @param Destination The destination buffer to store the decompressed data + @param Scratch A temporary scratch buffer that is used to perform the decompression. + This is an optional parameter that may be NULL if the + required scratch buffer size is 0. + + @retval RETURN_SUCCESS Decompression completed successfully, and + the uncompressed buffer is returned in Destination. + @retval RETURN_INVALID_PARAMETER + The source buffer specified by Source is corrupted + (not in a valid compressed format). +**/ +RETURN_STATUS +EFIAPI +UefiDecompress ( + IN CONST VOID *Source, + IN OUT VOID *Destination, + IN OUT VOID *Scratch OPTIONAL + ) +{ + return UefiTianoDecompress (Source, Destination, Scratch, 1); +} + +/** + Examines a GUIDed section and returns the size of the decoded buffer and the + size of an optional scratch buffer required to actually decode the data in a GUIDed section. + + Examines a GUIDed section specified by InputSection. + If GUID for InputSection does not match the GUID that this handler supports, + then RETURN_UNSUPPORTED is returned. + If the required information can not be retrieved from InputSection, + then RETURN_INVALID_PARAMETER is returned. + If the GUID of InputSection does match the GUID that this handler supports, + then the size required to hold the decoded buffer is returned in OututBufferSize, + the size of an optional scratch buffer is returned in ScratchSize, and the Attributes field + from EFI_GUID_DEFINED_SECTION header of InputSection is returned in SectionAttribute. + + If InputSection is NULL, then ASSERT(). + If OutputBufferSize is NULL, then ASSERT(). + If ScratchBufferSize is NULL, then ASSERT(). + If SectionAttribute is NULL, then ASSERT(). + + + @param[in] InputSection A pointer to a GUIDed section of an FFS formatted file. + @param[out] OutputBufferSize A pointer to the size, in bytes, of an output buffer required + if the buffer specified by InputSection were decoded. + @param[out] ScratchBufferSize A pointer to the size, in bytes, required as scratch space + if the buffer specified by InputSection were decoded. + @param[out] SectionAttribute A pointer to the attributes of the GUIDed section. See the Attributes + field of EFI_GUID_DEFINED_SECTION in the PI Specification. + + @retval RETURN_SUCCESS The information about InputSection was returned. + @retval RETURN_UNSUPPORTED The section specified by InputSection does not match the GUID this handler supports. + @retval RETURN_INVALID_PARAMETER The information can not be retrieved from the section specified by InputSection. + +**/ +RETURN_STATUS +EFIAPI +TianoDecompressGetInfo ( + IN CONST VOID *InputSection, + OUT UINT32 *OutputBufferSize, + OUT UINT32 *ScratchBufferSize, + OUT UINT16 *SectionAttribute + ) + +{ + ASSERT (SectionAttribute != NULL); + + if (InputSection == NULL) { + return RETURN_INVALID_PARAMETER; + } + + if (IS_SECTION2 (InputSection)) { + if (!CompareGuid ( + &gTianoCustomDecompressGuid, + &(((EFI_GUID_DEFINED_SECTION2 *) InputSection)->SectionDefinitionGuid))) { + return RETURN_INVALID_PARAMETER; + } + // + // Get guid attribute of guid section. + // + *SectionAttribute = ((EFI_GUID_DEFINED_SECTION2 *) InputSection)->Attributes; + + // + // Call Tiano GetInfo to get the required size info. + // + return UefiDecompressGetInfo ( + (UINT8 *) InputSection + ((EFI_GUID_DEFINED_SECTION2 *) InputSection)->DataOffset, + SECTION2_SIZE (InputSection) - ((EFI_GUID_DEFINED_SECTION2 *) InputSection)->DataOffset, + OutputBufferSize, + ScratchBufferSize + ); + } else { + if (!CompareGuid ( + &gTianoCustomDecompressGuid, + &(((EFI_GUID_DEFINED_SECTION *) InputSection)->SectionDefinitionGuid))) { + return RETURN_INVALID_PARAMETER; + } + // + // Get guid attribute of guid section. + // + *SectionAttribute = ((EFI_GUID_DEFINED_SECTION *) InputSection)->Attributes; + + // + // Call Tiano GetInfo to get the required size info. + // + return UefiDecompressGetInfo ( + (UINT8 *) InputSection + ((EFI_GUID_DEFINED_SECTION *) InputSection)->DataOffset, + SECTION_SIZE (InputSection) - ((EFI_GUID_DEFINED_SECTION *) InputSection)->DataOffset, + OutputBufferSize, + ScratchBufferSize + ); + } +} + +/** + Decompress a Tiano compressed GUIDed section into a caller allocated output buffer. + + Decodes the GUIDed section specified by InputSection. + If GUID for InputSection does not match the GUID that this handler supports, then RETURN_UNSUPPORTED is returned. + If the data in InputSection can not be decoded, then RETURN_INVALID_PARAMETER is returned. + If the GUID of InputSection does match the GUID that this handler supports, then InputSection + is decoded into the buffer specified by OutputBuffer and the authentication status of this + decode operation is returned in AuthenticationStatus. If the decoded buffer is identical to the + data in InputSection, then OutputBuffer is set to point at the data in InputSection. Otherwise, + the decoded data will be placed in caller allocated buffer specified by OutputBuffer. + + If InputSection is NULL, then ASSERT(). + If OutputBuffer is NULL, then ASSERT(). + If ScratchBuffer is NULL and this decode operation requires a scratch buffer, then ASSERT(). + If AuthenticationStatus is NULL, then ASSERT(). + + + @param[in] InputSection A pointer to a GUIDed section of an FFS formatted file. + @param[out] OutputBuffer A pointer to a buffer that contains the result of a decode operation. + @param[in] ScratchBuffer A caller allocated buffer that may be required by this function + as a scratch buffer to perform the decode operation. + @param[out] AuthenticationStatus + A pointer to the authentication status of the decoded output buffer. + See the definition of authentication status in the EFI_PEI_GUIDED_SECTION_EXTRACTION_PPI + section of the PI Specification. EFI_AUTH_STATUS_PLATFORM_OVERRIDE must + never be set by this handler. + + @retval RETURN_SUCCESS The buffer specified by InputSection was decoded. + @retval RETURN_UNSUPPORTED The section specified by InputSection does not match the GUID this handler supports. + @retval RETURN_INVALID_PARAMETER The section specified by InputSection can not be decoded. + +**/ +RETURN_STATUS +EFIAPI +TianoDecompress ( + IN CONST VOID *InputSection, + OUT VOID **OutputBuffer, + IN VOID *ScratchBuffer, OPTIONAL + OUT UINT32 *AuthenticationStatus + ) +{ + ASSERT (OutputBuffer != NULL); + ASSERT (InputSection != NULL); + + if (IS_SECTION2 (InputSection)) { + if (!CompareGuid ( + &gTianoCustomDecompressGuid, + &(((EFI_GUID_DEFINED_SECTION2 *) InputSection)->SectionDefinitionGuid))) { + return RETURN_INVALID_PARAMETER; + } + + // + // Set Authentication to Zero. + // + *AuthenticationStatus = 0; + + // + // Call Tiano Decompress to get the raw data + // + return UefiTianoDecompress ( + (UINT8 *) InputSection + ((EFI_GUID_DEFINED_SECTION2 *) InputSection)->DataOffset, + *OutputBuffer, + ScratchBuffer, + 2 + ); + } else { + if (!CompareGuid ( + &gTianoCustomDecompressGuid, + &(((EFI_GUID_DEFINED_SECTION *) InputSection)->SectionDefinitionGuid))) { + return RETURN_INVALID_PARAMETER; + } + + // + // Set Authentication to Zero. + // + *AuthenticationStatus = 0; + + // + // Call Tiano Decompress to get the raw data + // + return UefiTianoDecompress ( + (UINT8 *) InputSection + ((EFI_GUID_DEFINED_SECTION *) InputSection)->DataOffset, + *OutputBuffer, + ScratchBuffer, + 2 + ); + } +} + +/** + Registers TianoDecompress and TianoDecompressGetInfo handlers with TianoCustomerDecompressGuid + + @retval RETURN_SUCCESS Register successfully. + @retval RETURN_OUT_OF_RESOURCES No enough memory to store this handler. +**/ +RETURN_STATUS +EFIAPI +TianoDecompressLibConstructor ( + VOID +) +{ + return ExtractGuidedSectionRegisterHandlers ( + &gTianoCustomDecompressGuid, + TianoDecompressGetInfo, + TianoDecompress + ); +} diff --git a/MdePkg/Library/BaseUefiDecompressLib/BaseUefiDecompressLib.inf b/MdePkg/Library/BaseUefiDecompressLib/BaseUefiDecompressLib.inf index 356c39a4fe..b25680adc5 100644 --- a/MdePkg/Library/BaseUefiDecompressLib/BaseUefiDecompressLib.inf +++ b/MdePkg/Library/BaseUefiDecompressLib/BaseUefiDecompressLib.inf @@ -34,5 +34,7 @@ [LibraryClasses] BaseLib DebugLib BaseMemoryLib +[Guids] + gTianoCustomDecompressGuid ## PRODUCES ## UNDEFINED # specifies tiano custom decompress algorithm. diff --git a/MdePkg/Library/BaseUefiDecompressLib/BaseUefiDecompressLib.uni b/MdePkg/Library/BaseUefiDecompressLib/BaseUefiDecompressLib.uni index 1cec6bd965..25f379d047 100644 --- a/MdePkg/Library/BaseUefiDecompressLib/BaseUefiDecompressLib.uni +++ b/MdePkg/Library/BaseUefiDecompressLib/BaseUefiDecompressLib.uni @@ -1,16 +1,16 @@ // /** @file // UEFI Decompress Library implementation. // // UEFI Decompress Library implementation. // -// Copyright (c) 2007 - 2014, Intel Corporation. All rights reserved.<BR> +// Copyright (c) 2007 - 2019, Intel Corporation. All rights reserved.<BR> // // SPDX-License-Identifier: BSD-2-Clause-Patent // // **/ -#string STR_MODULE_ABSTRACT #language en-US "UEFI Decompress Library implementation" +#string STR_MODULE_ABSTRACT #language en-US "UEFI Decompress Library and Tiano Custom Decompress Library implementation." -#string STR_MODULE_DESCRIPTION #language en-US "UEFI Decompress Library implementation." +#string STR_MODULE_DESCRIPTION #language en-US "Tiano custom decompression algorithm shares most of the code with the UEFI Decompress algorithm." diff --git a/MdePkg/MdePkg.dec b/MdePkg/MdePkg.dec index e2ea8fff66..4344ea3594 100644 --- a/MdePkg/MdePkg.dec +++ b/MdePkg/MdePkg.dec @@ -759,10 +759,15 @@ # GUID defined in Windows UEFI Firmware Update Platform doc # ## Include/IndustryStandard/WindowsUxCapsule.h gWindowsUxCapsuleGuid = { 0x3b8c8162, 0x188c, 0x46a4, { 0xae, 0xc9, 0xbe, 0x43, 0xf1, 0xd6, 0x56, 0x97}} + # + # GUID indicates the tiano custom compress/decompress algorithm. + # + gTianoCustomDecompressGuid = { 0xA31280AD, 0x481E, 0x41B6, { 0x95, 0xE8, 0x12, 0x7F, 0x4C, 0x98, 0x47, 0x79 }} + [Guids.IA32, Guids.X64] ## Include/Guid/Cper.h gEfiIa32X64ErrorTypeCacheCheckGuid = { 0xA55701F5, 0xE3EF, 0x43de, { 0xAC, 0x72, 0x24, 0x9B, 0x57, 0x3F, 0xAD, 0x2C }} ## Include/Guid/Cper.h diff --git a/MdePkg/MdePkg.dsc b/MdePkg/MdePkg.dsc index 21743e384c..dbc24a297e 100644 --- a/MdePkg/MdePkg.dsc +++ b/MdePkg/MdePkg.dsc @@ -55,10 +55,11 @@ MdePkg/Library/BaseReportStatusCodeLibNull/BaseReportStatusCodeLibNull.inf MdePkg/Library/BaseSerialPortLibNull/BaseSerialPortLibNull.inf MdePkg/Library/BaseSynchronizationLib/BaseSynchronizationLib.inf MdePkg/Library/BaseTimerLibNullTemplate/BaseTimerLibNullTemplate.inf MdePkg/Library/BaseUefiDecompressLib/BaseUefiDecompressLib.inf + MdePkg/Library/BaseUefiDecompressLib/BaseTianoCustomDecompressLib.inf MdePkg/Library/BaseSmbusLibNull/BaseSmbusLibNull.inf MdePkg/Library/BaseSafeIntLib/BaseSafeIntLib.inf MdePkg/Library/DxeCoreEntryPoint/DxeCoreEntryPoint.inf MdePkg/Library/DxeCoreHobLib/DxeCoreHobLib.inf -- 2.18.0.windows.1 ^ permalink raw reply related [flat|nested] 5+ messages in thread
* Re: [RFC] [patch] Merge MdeModulePkg\BaseTianoCustomDecompressLib into MdePkg\BaseUefiDecompressLib 2019-04-30 8:58 [RFC] [patch] Merge MdeModulePkg\BaseTianoCustomDecompressLib into MdePkg\BaseUefiDecompressLib Dandan Bi @ 2019-04-30 21:35 ` Leif Lindholm 2019-05-01 23:46 ` [edk2-devel] " Dandan Bi 2019-05-05 5:26 ` Liming Gao 1 sibling, 1 reply; 5+ messages in thread From: Leif Lindholm @ 2019-04-30 21:35 UTC (permalink / raw) To: Dandan Bi Cc: devel, Michael D Kinney, Liming Gao, Jian J Wang, Hao Wu, Ray Ni, Zailiang Sun, Yi Qian, Ard Biesheuvel On Tue, Apr 30, 2019 at 04:58:41PM +0800, Dandan Bi wrote: > BaseUefiDecompressLib in MdePkg implements the UEFI Decompress algorithm. > BaseUefiTianoCustomDecompressLib in MdeModulePkg implements the UEFI Decompress algorithm > and Tiano Custom Decompression algorithm. > Tiano custom decompression algorithm shares most of the code with the UEFI Decompress algorithm. > So BaseUefiDecompressLib and BaseUefiTianoCustomDecompressLib have lots common code. > We plan to merge the MdeModulePkg\BaseTianoCustomDecompressLib into MdePkg\BaseUefiDecompressLib, > in order to reduce the duplicated codes and maintain these two Decompress algorithms easily. > > Propose to update: > 1. Make the implemtations of these two Decompress algorithms in exstring MdePkg/Library/BaseUefiDecompressLib. > 2. keep existing BaseUefiDecompressLib.inf in MdePkg/Library/BaseUefiDecompressLib for UEFI Decompress algorithm. > 3. Add BaseTianoCustomDecompressLib.inf in MdePkg/Library/BaseUefiDecompressLib for Tiano Custom Decompression algorithm. > 4. Make existing BaseUefiDecompressLib.c in MdePkg/Library/BaseUefiDecompressLib to support the Tiano Custom Decompression algorithm > besides existing UEFI Decompress algorithm. > 5. Remove the gTianoCustomDecompressGuid header file from MdeModulePkg/Include/Guid/TianoDecompress.h > Move the gTianoCustomDecompressGuid definition from MdeModulePkg.dec to MdePkg.dec. > 6. Remove the MdeModulePkg/Library/BaseUefiTianoCustomDecompressLib from edk2. > > The draf updates are covered by this patch. > > Impact analysis: > 1. No impact to the usage of BaseUefiDecompressLib. > 2. Need to update the consumers of > MdeModulePkg/Library/BaseUefiTianoCustomDecompressLib/BaseUefiTianoCustomDecompressLib.inf > to use > MdePkg/Library/BaseUefiDecompressLib/BaseTianoCustomDecompressLib.inf > 3. Current impacted platforms: > edk2 repo: > Nt32Pkg > Quark > vlv2tbltdevicepkg > edk2-platforms repo: > AMD Overdrive > Lemaker Cello > Raspberry Pi3 > SoftIron 1000 > D03/D05/D06 > Hikey/Hikey960 > > For platforms in edk2 repo, we can add the BaseTianoCustomDecompressLib.inf in MdePkg/Library/BaseUefiDecompressLib firstly > and then update platform consumers, remove the MdeModulePkg/Library/BaseUefiTianoCustomDecompressLib at last. > > For the platforms in edk2-platforms repo, I find they don't use the Tiano Custom Decompression algorithm actually. > So we can update them to use the MdePkg/Library/BaseUefiDecompressLib/BaseUefiDecompressLib.inf firstly to avoid any > imconpatible changes. That sounds good to me. But can you explain how you determined they don't use the algorithm? > Cc: Michael D Kinney <michael.d.kinney@intel.com> > Cc: Liming Gao <liming.gao@intel.com> > Cc: Jian J Wang <jian.j.wang@intel.com> > Cc: Hao Wu <hao.a.wu@intel.com> > Cc: Ray Ni <ray.ni@intel.com> > Cc: Zailiang Sun <zailiang.sun@intel.com> > Cc: Yi Qian <yi.qian@intel.com> > Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org> > Cc: Leif Lindholm <leif.lindholm@linaro.org> > > Signed-off-by: Dandan Bi <dandan.bi@intel.com> > --- > MdeModulePkg/Include/Guid/TianoDecompress.h | 22 - > .../BaseUefiTianoCustomDecompressLib.c | 1063 ----------------- > ...aseUefiTianoCustomDecompressLibInternals.h | 214 ---- > .../BaseUefiTianoDecompressLib.uni | 16 - > MdeModulePkg/MdeModulePkg.dec | 4 - > MdeModulePkg/MdeModulePkg.dsc | 1 - > .../BaseTianoCustomDecompressLib.inf | 5 +- > .../BaseUefiDecompressLib.c | 261 +++- > .../BaseUefiDecompressLib.inf | 2 + > .../BaseUefiDecompressLib.uni | 6 +- > MdePkg/MdePkg.dec | 5 + > MdePkg/MdePkg.dsc | 1 + Please use --stat=1000 --stat-graph-width=20 when generating patches. / Leif > 12 files changed, 270 insertions(+), 1330 deletions(-) > delete mode 100644 MdeModulePkg/Include/Guid/TianoDecompress.h > delete mode 100644 MdeModulePkg/Library/BaseUefiTianoCustomDecompressLib/BaseUefiTianoCustomDecompressLib.c > delete mode 100644 MdeModulePkg/Library/BaseUefiTianoCustomDecompressLib/BaseUefiTianoCustomDecompressLibInternals.h > delete mode 100644 MdeModulePkg/Library/BaseUefiTianoCustomDecompressLib/BaseUefiTianoDecompressLib.uni > rename MdeModulePkg/Library/BaseUefiTianoCustomDecompressLib/BaseUefiTianoCustomDecompressLib.inf => MdePkg/Library/BaseUefiDecompressLib/BaseTianoCustomDecompressLib.inf (88%) > > diff --git a/MdeModulePkg/Include/Guid/TianoDecompress.h b/MdeModulePkg/Include/Guid/TianoDecompress.h > deleted file mode 100644 > index 40f74f88f3..0000000000 > --- a/MdeModulePkg/Include/Guid/TianoDecompress.h > +++ /dev/null > @@ -1,22 +0,0 @@ > -/** @file > - Tiano Custom decompress Guid definition. > - > -Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR> > -SPDX-License-Identifier: BSD-2-Clause-Patent > - > -**/ > - > -#ifndef __TIANO_CUSTOM_DECOMPRESS_GUID_H__ > -#define __TIANO_CUSTOM_DECOMPRESS_GUID_H__ > - > -/// > -/// The Global ID used to identify a section of an FFS file of type > -/// EFI_SECTION_GUID_DEFINED, whose contents have been compressed using > -/// Tiano Custom compression. > -/// > -#define TIANO_CUSTOM_DECOMPRESS_GUID \ > - { 0xA31280AD, 0x481E, 0x41B6, { 0x95, 0xE8, 0x12, 0x7F, 0x4C, 0x98, 0x47, 0x79 } } > - > -extern GUID gTianoCustomDecompressGuid; > - > -#endif > diff --git a/MdeModulePkg/Library/BaseUefiTianoCustomDecompressLib/BaseUefiTianoCustomDecompressLib.c b/MdeModulePkg/Library/BaseUefiTianoCustomDecompressLib/BaseUefiTianoCustomDecompressLib.c > deleted file mode 100644 > index 38b66b1906..0000000000 > --- a/MdeModulePkg/Library/BaseUefiTianoCustomDecompressLib/BaseUefiTianoCustomDecompressLib.c > +++ /dev/null > @@ -1,1063 +0,0 @@ > -/** @file > - UEFI and Tiano Custom Decompress Library > - It will do Tiano or UEFI decompress with different verison parameter. > - > -Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR> > -SPDX-License-Identifier: BSD-2-Clause-Patent > - > -**/ > - > -#include "BaseUefiTianoCustomDecompressLibInternals.h" > - > -/** > - Shift mBitBuf NumOfBits left. Read in NumOfBits of bits from source. > - > - @param Sd The global scratch data > - @param NumOfBits The number of bits to shift and read. > -**/ > -VOID > -FillBuf ( > - IN SCRATCH_DATA *Sd, > - IN UINT16 NumOfBits > - ) > -{ > - // > - // Left shift NumOfBits of bits in advance > - // > - Sd->mBitBuf = (UINT32) LShiftU64 (((UINT64)Sd->mBitBuf), NumOfBits); > - > - // > - // Copy data needed in bytes into mSbuBitBuf > - // > - while (NumOfBits > Sd->mBitCount) { > - NumOfBits = (UINT16) (NumOfBits - Sd->mBitCount); > - Sd->mBitBuf |= (UINT32) LShiftU64 (((UINT64)Sd->mSubBitBuf), NumOfBits); > - > - if (Sd->mCompSize > 0) { > - // > - // Get 1 byte into SubBitBuf > - // > - Sd->mCompSize--; > - Sd->mSubBitBuf = 0; > - Sd->mSubBitBuf = Sd->mSrcBase[Sd->mInBuf++]; > - Sd->mBitCount = 8; > - > - } else { > - // > - // No more bits from the source, just pad zero bit. > - // > - Sd->mSubBitBuf = 0; > - Sd->mBitCount = 8; > - > - } > - } > - > - // > - // Calculate additional bit count read to update mBitCount > - // > - Sd->mBitCount = (UINT16) (Sd->mBitCount - NumOfBits); > - > - // > - // Copy NumOfBits of bits from mSubBitBuf into mBitBuf > - // > - Sd->mBitBuf |= Sd->mSubBitBuf >> Sd->mBitCount; > -} > - > -/** > - Get NumOfBits of bits out from mBitBuf > - > - Get NumOfBits of bits out from mBitBuf. Fill mBitBuf with subsequent > - NumOfBits of bits from source. Returns NumOfBits of bits that are > - popped out. > - > - @param Sd The global scratch data. > - @param NumOfBits The number of bits to pop and read. > - > - @return The bits that are popped out. > - > -**/ > -UINT32 > -GetBits ( > - IN SCRATCH_DATA *Sd, > - IN UINT16 NumOfBits > - ) > -{ > - UINT32 OutBits; > - > - // > - // Pop NumOfBits of Bits from Left > - // > - OutBits = (UINT32) (Sd->mBitBuf >> (BITBUFSIZ - NumOfBits)); > - > - // > - // Fill up mBitBuf from source > - // > - FillBuf (Sd, NumOfBits); > - > - return OutBits; > -} > - > -/** > - Creates Huffman Code mapping table according to code length array. > - > - Creates Huffman Code mapping table for Extra Set, Char&Len Set > - and Position Set according to code length array. > - If TableBits > 16, then ASSERT (). > - > - @param Sd The global scratch data > - @param NumOfChar Number of symbols in the symbol set > - @param BitLen Code length array > - @param TableBits The width of the mapping table > - @param Table The table to be created. > - > - @retval 0 OK. > - @retval BAD_TABLE The table is corrupted. > - > -**/ > -UINT16 > -MakeTable ( > - IN SCRATCH_DATA *Sd, > - IN UINT16 NumOfChar, > - IN UINT8 *BitLen, > - IN UINT16 TableBits, > - OUT UINT16 *Table > - ) > -{ > - UINT16 Count[17]; > - UINT16 Weight[17]; > - UINT16 Start[18]; > - UINT16 *Pointer; > - UINT16 Index3; > - UINT16 Index; > - UINT16 Len; > - UINT16 Char; > - UINT16 JuBits; > - UINT16 Avail; > - UINT16 NextCode; > - UINT16 Mask; > - UINT16 WordOfStart; > - UINT16 WordOfCount; > - UINT16 MaxTableLength; > - > - // > - // The maximum mapping table width supported by this internal > - // working function is 16. > - // > - ASSERT (TableBits <= 16); > - > - for (Index = 0; Index <= 16; Index++) { > - Count[Index] = 0; > - } > - > - for (Index = 0; Index < NumOfChar; Index++) { > - if (BitLen[Index] > 16) { > - return (UINT16) BAD_TABLE; > - } > - Count[BitLen[Index]]++; > - } > - > - Start[0] = 0; > - Start[1] = 0; > - > - for (Index = 1; Index <= 16; Index++) { > - WordOfStart = Start[Index]; > - WordOfCount = Count[Index]; > - Start[Index + 1] = (UINT16) (WordOfStart + (WordOfCount << (16 - Index))); > - } > - > - if (Start[17] != 0) { > - /*(1U << 16)*/ > - return (UINT16) BAD_TABLE; > - } > - > - JuBits = (UINT16) (16 - TableBits); > - > - Weight[0] = 0; > - for (Index = 1; Index <= TableBits; Index++) { > - Start[Index] >>= JuBits; > - Weight[Index] = (UINT16) (1U << (TableBits - Index)); > - } > - > - while (Index <= 16) { > - Weight[Index] = (UINT16) (1U << (16 - Index)); > - Index++; > - } > - > - Index = (UINT16) (Start[TableBits + 1] >> JuBits); > - > - if (Index != 0) { > - Index3 = (UINT16) (1U << TableBits); > - if (Index < Index3) { > - SetMem16 (Table + Index, (Index3 - Index) * sizeof (*Table), 0); > - } > - } > - > - Avail = NumOfChar; > - Mask = (UINT16) (1U << (15 - TableBits)); > - MaxTableLength = (UINT16) (1U << TableBits); > - > - for (Char = 0; Char < NumOfChar; Char++) { > - > - Len = BitLen[Char]; > - if (Len == 0 || Len >= 17) { > - continue; > - } > - > - NextCode = (UINT16) (Start[Len] + Weight[Len]); > - > - if (Len <= TableBits) { > - > - for (Index = Start[Len]; Index < NextCode; Index++) { > - if (Index >= MaxTableLength) { > - return (UINT16) BAD_TABLE; > - } > - Table[Index] = Char; > - } > - > - } else { > - > - Index3 = Start[Len]; > - Pointer = &Table[Index3 >> JuBits]; > - Index = (UINT16) (Len - TableBits); > - > - while (Index != 0) { > - if (*Pointer == 0 && Avail < (2 * NC - 1)) { > - Sd->mRight[Avail] = Sd->mLeft[Avail] = 0; > - *Pointer = Avail++; > - } > - > - if (*Pointer < (2 * NC - 1)) { > - if ((Index3 & Mask) != 0) { > - Pointer = &Sd->mRight[*Pointer]; > - } else { > - Pointer = &Sd->mLeft[*Pointer]; > - } > - } > - > - Index3 <<= 1; > - Index--; > - } > - > - *Pointer = Char; > - > - } > - > - Start[Len] = NextCode; > - } > - // > - // Succeeds > - // > - return 0; > -} > - > -/** > - Decodes a position value. > - > - Get a position value according to Position Huffman Table. > - > - @param Sd the global scratch data > - > - @return The position value decoded. > -**/ > -UINT32 > -DecodeP ( > - IN SCRATCH_DATA *Sd > - ) > -{ > - UINT16 Val; > - UINT32 Mask; > - UINT32 Pos; > - > - Val = Sd->mPTTable[Sd->mBitBuf >> (BITBUFSIZ - 8)]; > - > - if (Val >= MAXNP) { > - Mask = 1U << (BITBUFSIZ - 1 - 8); > - > - do { > - > - if ((Sd->mBitBuf & Mask) != 0) { > - Val = Sd->mRight[Val]; > - } else { > - Val = Sd->mLeft[Val]; > - } > - > - Mask >>= 1; > - } while (Val >= MAXNP); > - } > - // > - // Advance what we have read > - // > - FillBuf (Sd, Sd->mPTLen[Val]); > - > - Pos = Val; > - if (Val > 1) { > - Pos = (UINT32) ((1U << (Val - 1)) + GetBits (Sd, (UINT16) (Val - 1))); > - } > - > - return Pos; > -} > - > -/** > - Reads code lengths for the Extra Set or the Position Set. > - > - Read in the Extra Set or Position Set Length Array, then > - generate the Huffman code mapping for them. > - > - @param Sd The global scratch data. > - @param nn Number of symbols. > - @param nbit Number of bits needed to represent nn. > - @param Special The special symbol that needs to be taken care of. > - > - @retval 0 OK. > - @retval BAD_TABLE Table is corrupted. > - > -**/ > -UINT16 > -ReadPTLen ( > - IN SCRATCH_DATA *Sd, > - IN UINT16 nn, > - IN UINT16 nbit, > - IN UINT16 Special > - ) > -{ > - UINT16 Number; > - UINT16 CharC; > - UINT16 Index; > - UINT32 Mask; > - > - ASSERT (nn <= NPT); > - // > - // Read Extra Set Code Length Array size > - // > - Number = (UINT16) GetBits (Sd, nbit); > - > - if (Number == 0) { > - // > - // This represents only Huffman code used > - // > - CharC = (UINT16) GetBits (Sd, nbit); > - > - for (Index = 0; Index < 256; Index++) { > - Sd->mPTTable[Index] = CharC; > - } > - > - SetMem (Sd->mPTLen, nn, 0); > - > - return 0; > - } > - > - Index = 0; > - > - while (Index < Number && Index < NPT) { > - > - CharC = (UINT16) (Sd->mBitBuf >> (BITBUFSIZ - 3)); > - > - // > - // If a code length is less than 7, then it is encoded as a 3-bit > - // value. Or it is encoded as a series of "1"s followed by a > - // terminating "0". The number of "1"s = Code length - 4. > - // > - if (CharC == 7) { > - Mask = 1U << (BITBUFSIZ - 1 - 3); > - while (Mask & Sd->mBitBuf) { > - Mask >>= 1; > - CharC += 1; > - } > - } > - > - FillBuf (Sd, (UINT16) ((CharC < 7) ? 3 : CharC - 3)); > - > - Sd->mPTLen[Index++] = (UINT8) CharC; > - > - // > - // For Code&Len Set, > - // After the third length of the code length concatenation, > - // a 2-bit value is used to indicated the number of consecutive > - // zero lengths after the third length. > - // > - if (Index == Special) { > - CharC = (UINT16) GetBits (Sd, 2); > - while ((INT16) (--CharC) >= 0 && Index < NPT) { > - Sd->mPTLen[Index++] = 0; > - } > - } > - } > - > - while (Index < nn && Index < NPT) { > - Sd->mPTLen[Index++] = 0; > - } > - > - return MakeTable (Sd, nn, Sd->mPTLen, 8, Sd->mPTTable); > -} > - > -/** > - Reads code lengths for Char&Len Set. > - > - Read in and decode the Char&Len Set Code Length Array, then > - generate the Huffman Code mapping table for the Char&Len Set. > - > - @param Sd the global scratch data > - > -**/ > -VOID > -ReadCLen ( > - SCRATCH_DATA *Sd > - ) > -{ > - UINT16 Number; > - UINT16 CharC; > - UINT16 Index; > - UINT32 Mask; > - > - Number = (UINT16) GetBits (Sd, CBIT); > - > - if (Number == 0) { > - // > - // This represents only Huffman code used > - // > - CharC = (UINT16) GetBits (Sd, CBIT); > - > - SetMem (Sd->mCLen, NC, 0); > - > - for (Index = 0; Index < 4096; Index++) { > - Sd->mCTable[Index] = CharC; > - } > - > - return ; > - } > - > - Index = 0; > - while (Index < Number && Index < NC) { > - CharC = Sd->mPTTable[Sd->mBitBuf >> (BITBUFSIZ - 8)]; > - if (CharC >= NT) { > - Mask = 1U << (BITBUFSIZ - 1 - 8); > - > - do { > - > - if (Mask & Sd->mBitBuf) { > - CharC = Sd->mRight[CharC]; > - } else { > - CharC = Sd->mLeft[CharC]; > - } > - > - Mask >>= 1; > - > - } while (CharC >= NT); > - } > - // > - // Advance what we have read > - // > - FillBuf (Sd, Sd->mPTLen[CharC]); > - > - if (CharC <= 2) { > - > - if (CharC == 0) { > - CharC = 1; > - } else if (CharC == 1) { > - CharC = (UINT16) (GetBits (Sd, 4) + 3); > - } else if (CharC == 2) { > - CharC = (UINT16) (GetBits (Sd, CBIT) + 20); > - } > - > - while ((INT16) (--CharC) >= 0 && Index < NC) { > - Sd->mCLen[Index++] = 0; > - } > - > - } else { > - > - Sd->mCLen[Index++] = (UINT8) (CharC - 2); > - > - } > - } > - > - SetMem (Sd->mCLen + Index, NC - Index, 0); > - > - MakeTable (Sd, NC, Sd->mCLen, 12, Sd->mCTable); > - > - return ; > -} > - > -/** > - Decode a character/length value. > - > - Read one value from mBitBuf, Get one code from mBitBuf. If it is at block boundary, generates > - Huffman code mapping table for Extra Set, Code&Len Set and > - Position Set. > - > - @param Sd The global scratch data. > - > - @return The value decoded. > - > -**/ > -UINT16 > -DecodeC ( > - SCRATCH_DATA *Sd > - ) > -{ > - UINT16 Index2; > - UINT32 Mask; > - > - if (Sd->mBlockSize == 0) { > - // > - // Starting a new block > - // Read BlockSize from block header > - // > - Sd->mBlockSize = (UINT16) GetBits (Sd, 16); > - > - // > - // Read in the Extra Set Code Length Array, > - // Generate the Huffman code mapping table for Extra Set. > - // > - Sd->mBadTableFlag = ReadPTLen (Sd, NT, TBIT, 3); > - if (Sd->mBadTableFlag != 0) { > - return 0; > - } > - > - // > - // Read in and decode the Char&Len Set Code Length Array, > - // Generate the Huffman code mapping table for Char&Len Set. > - // > - ReadCLen (Sd); > - > - // > - // Read in the Position Set Code Length Array, > - // Generate the Huffman code mapping table for the Position Set. > - // > - Sd->mBadTableFlag = ReadPTLen (Sd, MAXNP, Sd->mPBit, (UINT16) (-1)); > - if (Sd->mBadTableFlag != 0) { > - return 0; > - } > - } > - > - // > - // Get one code according to Code&Set Huffman Table > - // > - Sd->mBlockSize--; > - Index2 = Sd->mCTable[Sd->mBitBuf >> (BITBUFSIZ - 12)]; > - > - if (Index2 >= NC) { > - Mask = 1U << (BITBUFSIZ - 1 - 12); > - > - do { > - if ((Sd->mBitBuf & Mask) != 0) { > - Index2 = Sd->mRight[Index2]; > - } else { > - Index2 = Sd->mLeft[Index2]; > - } > - > - Mask >>= 1; > - } while (Index2 >= NC); > - } > - // > - // Advance what we have read > - // > - FillBuf (Sd, Sd->mCLen[Index2]); > - > - return Index2; > -} > - > -/** > - Decode the source data and put the resulting data into the destination buffer. > - > - @param Sd The global scratch data > -**/ > -VOID > -Decode ( > - SCRATCH_DATA *Sd > - ) > -{ > - UINT16 BytesRemain; > - UINT32 DataIdx; > - UINT16 CharC; > - > - BytesRemain = (UINT16) (-1); > - > - DataIdx = 0; > - > - for (;;) { > - // > - // Get one code from mBitBuf > - // > - CharC = DecodeC (Sd); > - if (Sd->mBadTableFlag != 0) { > - goto Done; > - } > - > - if (CharC < 256) { > - // > - // Process an Original character > - // > - if (Sd->mOutBuf >= Sd->mOrigSize) { > - goto Done; > - } else { > - // > - // Write orignal character into mDstBase > - // > - Sd->mDstBase[Sd->mOutBuf++] = (UINT8) CharC; > - } > - > - } else { > - // > - // Process a Pointer > - // > - CharC = (UINT16) (CharC - (BIT8 - THRESHOLD)); > - > - // > - // Get string length > - // > - BytesRemain = CharC; > - > - // > - // Locate string position > - // > - DataIdx = Sd->mOutBuf - DecodeP (Sd) - 1; > - > - // > - // Write BytesRemain of bytes into mDstBase > - // > - BytesRemain--; > - while ((INT16) (BytesRemain) >= 0) { > - if (Sd->mOutBuf >= Sd->mOrigSize) { > - goto Done ; > - } > - if (DataIdx >= Sd->mOrigSize) { > - Sd->mBadTableFlag = (UINT16) BAD_TABLE; > - goto Done ; > - } > - Sd->mDstBase[Sd->mOutBuf++] = Sd->mDstBase[DataIdx++]; > - > - BytesRemain--; > - } > - // > - // Once mOutBuf is fully filled, directly return > - // > - if (Sd->mOutBuf >= Sd->mOrigSize) { > - goto Done ; > - } > - } > - } > - > -Done: > - return ; > -} > - > -/** > - Given a compressed source buffer, this function retrieves the size of > - the uncompressed buffer and the size of the scratch buffer required > - to decompress the compressed source buffer. > - > - Retrieves the size of the uncompressed buffer and the temporary scratch buffer > - required to decompress the buffer specified by Source and SourceSize. > - If the size of the uncompressed buffer or the size of the scratch buffer cannot > - be determined from the compressed data specified by Source and SourceData, > - then RETURN_INVALID_PARAMETER is returned. Otherwise, the size of the uncompressed > - buffer is returned in DestinationSize, the size of the scratch buffer is returned > - in ScratchSize, and RETURN_SUCCESS is returned. > - This function does not have scratch buffer available to perform a thorough > - checking of the validity of the source data. It just retrieves the "Original Size" > - field from the beginning bytes of the source data and output it as DestinationSize. > - And ScratchSize is specific to the decompression implementation. > - > - If Source is NULL, then ASSERT(). > - If DestinationSize is NULL, then ASSERT(). > - If ScratchSize is NULL, then ASSERT(). > - > - @param Source The source buffer containing the compressed data. > - @param SourceSize The size, in bytes, of the source buffer. > - @param DestinationSize A pointer to the size, in bytes, of the uncompressed buffer > - that will be generated when the compressed buffer specified > - by Source and SourceSize is decompressed.. > - @param ScratchSize A pointer to the size, in bytes, of the scratch buffer that > - is required to decompress the compressed buffer specified > - by Source and SourceSize. > - > - @retval RETURN_SUCCESS The size of the uncompressed data was returned > - in DestinationSize and the size of the scratch > - buffer was returned in ScratchSize. > - @retval RETURN_INVALID_PARAMETER > - The size of the uncompressed data or the size of > - the scratch buffer cannot be determined from > - the compressed data specified by Source > - and SourceSize. > -**/ > -RETURN_STATUS > -EFIAPI > -UefiDecompressGetInfo ( > - IN CONST VOID *Source, > - IN UINT32 SourceSize, > - OUT UINT32 *DestinationSize, > - OUT UINT32 *ScratchSize > - ) > -{ > - UINT32 CompressedSize; > - > - ASSERT (Source != NULL); > - ASSERT (DestinationSize != NULL); > - ASSERT (ScratchSize != NULL); > - > - if (SourceSize < 8) { > - return RETURN_INVALID_PARAMETER; > - } > - > - CompressedSize = ReadUnaligned32 ((UINT32 *)Source); > - if (SourceSize < (CompressedSize + 8) || (CompressedSize + 8) < 8) { > - return RETURN_INVALID_PARAMETER; > - } > - > - *ScratchSize = sizeof (SCRATCH_DATA); > - *DestinationSize = ReadUnaligned32 ((UINT32 *)Source + 1); > - > - return RETURN_SUCCESS; > -} > - > -/** > - Decompresses a compressed source buffer by EFI or Tiano algorithm. > - > - Extracts decompressed data to its original form. > - This function is designed so that the decompression algorithm can be implemented > - without using any memory services. As a result, this function is not allowed to > - call any memory allocation services in its implementation. It is the caller's > - responsibility to allocate and free the Destination and Scratch buffers. > - If the compressed source data specified by Source is successfully decompressed > - into Destination, then RETURN_SUCCESS is returned. If the compressed source data > - specified by Source is not in a valid compressed data format, > - then RETURN_INVALID_PARAMETER is returned. > - > - If Source is NULL, then ASSERT(). > - If Destination is NULL, then ASSERT(). > - If the required scratch buffer size > 0 and Scratch is NULL, then ASSERT(). > - > - @param Source The source buffer containing the compressed data. > - @param Destination The destination buffer to store the decompressed data > - @param Scratch A temporary scratch buffer that is used to perform the decompression. > - This is an optional parameter that may be NULL if the > - required scratch buffer size is 0. > - @param Version 1 for UEFI Decompress algoruthm, 2 for Tiano Decompess algorithm. > - > - @retval RETURN_SUCCESS Decompression completed successfully, and > - the uncompressed buffer is returned in Destination. > - @retval RETURN_INVALID_PARAMETER > - The source buffer specified by Source is corrupted > - (not in a valid compressed format). > -**/ > -RETURN_STATUS > -EFIAPI > -UefiTianoDecompress ( > - IN CONST VOID *Source, > - IN OUT VOID *Destination, > - IN OUT VOID *Scratch, > - IN UINT32 Version > - ) > -{ > - UINT32 CompSize; > - UINT32 OrigSize; > - SCRATCH_DATA *Sd; > - CONST UINT8 *Src; > - UINT8 *Dst; > - > - ASSERT (Source != NULL); > - ASSERT (Destination != NULL); > - ASSERT (Scratch != NULL); > - > - Src = Source; > - Dst = Destination; > - > - Sd = (SCRATCH_DATA *) Scratch; > - > - CompSize = Src[0] + (Src[1] << 8) + (Src[2] << 16) + (Src[3] << 24); > - OrigSize = Src[4] + (Src[5] << 8) + (Src[6] << 16) + (Src[7] << 24); > - > - // > - // If compressed file size is 0, return > - // > - if (OrigSize == 0) { > - return RETURN_SUCCESS; > - } > - > - Src = Src + 8; > - > - SetMem (Sd, sizeof (SCRATCH_DATA), 0); > - > - // > - // The length of the field 'Position Set Code Length Array Size' in Block Header. > - // For UEFI 2.0 de/compression algorithm(Version 1), mPBit = 4 > - // For Tiano de/compression algorithm(Version 2), mPBit = 5 > - // > - switch (Version) { > - case 1 : > - Sd->mPBit = 4; > - break; > - case 2 : > - Sd->mPBit = 5; > - break; > - default: > - ASSERT (FALSE); > - } > - Sd->mSrcBase = (UINT8 *)Src; > - Sd->mDstBase = Dst; > - // > - // CompSize and OrigSize are calculated in bytes > - // > - Sd->mCompSize = CompSize; > - Sd->mOrigSize = OrigSize; > - > - // > - // Fill the first BITBUFSIZ bits > - // > - FillBuf (Sd, BITBUFSIZ); > - > - // > - // Decompress it > - // > - Decode (Sd); > - > - if (Sd->mBadTableFlag != 0) { > - // > - // Something wrong with the source > - // > - return RETURN_INVALID_PARAMETER; > - } > - > - return RETURN_SUCCESS; > -} > - > -/** > - Decompresses a UEFI compressed source buffer. > - > - Extracts decompressed data to its original form. > - This function is designed so that the decompression algorithm can be implemented > - without using any memory services. As a result, this function is not allowed to > - call any memory allocation services in its implementation. It is the caller's > - responsibility to allocate and free the Destination and Scratch buffers. > - If the compressed source data specified by Source is successfully decompressed > - into Destination, then RETURN_SUCCESS is returned. If the compressed source data > - specified by Source is not in a valid compressed data format, > - then RETURN_INVALID_PARAMETER is returned. > - > - If Source is NULL, then ASSERT(). > - If Destination is NULL, then ASSERT(). > - If the required scratch buffer size > 0 and Scratch is NULL, then ASSERT(). > - > - @param Source The source buffer containing the compressed data. > - @param Destination The destination buffer to store the decompressed data > - @param Scratch A temporary scratch buffer that is used to perform the decompression. > - This is an optional parameter that may be NULL if the > - required scratch buffer size is 0. > - > - @retval RETURN_SUCCESS Decompression completed successfully, and > - the uncompressed buffer is returned in Destination. > - @retval RETURN_INVALID_PARAMETER > - The source buffer specified by Source is corrupted > - (not in a valid compressed format). > -**/ > -RETURN_STATUS > -EFIAPI > -UefiDecompress ( > - IN CONST VOID *Source, > - IN OUT VOID *Destination, > - IN OUT VOID *Scratch OPTIONAL > - ) > -{ > - return UefiTianoDecompress (Source, Destination, Scratch, 1); > -} > - > -/** > - Examines a GUIDed section and returns the size of the decoded buffer and the > - size of an optional scratch buffer required to actually decode the data in a GUIDed section. > - > - Examines a GUIDed section specified by InputSection. > - If GUID for InputSection does not match the GUID that this handler supports, > - then RETURN_UNSUPPORTED is returned. > - If the required information can not be retrieved from InputSection, > - then RETURN_INVALID_PARAMETER is returned. > - If the GUID of InputSection does match the GUID that this handler supports, > - then the size required to hold the decoded buffer is returned in OututBufferSize, > - the size of an optional scratch buffer is returned in ScratchSize, and the Attributes field > - from EFI_GUID_DEFINED_SECTION header of InputSection is returned in SectionAttribute. > - > - If InputSection is NULL, then ASSERT(). > - If OutputBufferSize is NULL, then ASSERT(). > - If ScratchBufferSize is NULL, then ASSERT(). > - If SectionAttribute is NULL, then ASSERT(). > - > - > - @param[in] InputSection A pointer to a GUIDed section of an FFS formatted file. > - @param[out] OutputBufferSize A pointer to the size, in bytes, of an output buffer required > - if the buffer specified by InputSection were decoded. > - @param[out] ScratchBufferSize A pointer to the size, in bytes, required as scratch space > - if the buffer specified by InputSection were decoded. > - @param[out] SectionAttribute A pointer to the attributes of the GUIDed section. See the Attributes > - field of EFI_GUID_DEFINED_SECTION in the PI Specification. > - > - @retval RETURN_SUCCESS The information about InputSection was returned. > - @retval RETURN_UNSUPPORTED The section specified by InputSection does not match the GUID this handler supports. > - @retval RETURN_INVALID_PARAMETER The information can not be retrieved from the section specified by InputSection. > - > -**/ > -RETURN_STATUS > -EFIAPI > -TianoDecompressGetInfo ( > - IN CONST VOID *InputSection, > - OUT UINT32 *OutputBufferSize, > - OUT UINT32 *ScratchBufferSize, > - OUT UINT16 *SectionAttribute > - ) > - > -{ > - ASSERT (SectionAttribute != NULL); > - > - if (InputSection == NULL) { > - return RETURN_INVALID_PARAMETER; > - } > - > - if (IS_SECTION2 (InputSection)) { > - if (!CompareGuid ( > - &gTianoCustomDecompressGuid, > - &(((EFI_GUID_DEFINED_SECTION2 *) InputSection)->SectionDefinitionGuid))) { > - return RETURN_INVALID_PARAMETER; > - } > - // > - // Get guid attribute of guid section. > - // > - *SectionAttribute = ((EFI_GUID_DEFINED_SECTION2 *) InputSection)->Attributes; > - > - // > - // Call Tiano GetInfo to get the required size info. > - // > - return UefiDecompressGetInfo ( > - (UINT8 *) InputSection + ((EFI_GUID_DEFINED_SECTION2 *) InputSection)->DataOffset, > - SECTION2_SIZE (InputSection) - ((EFI_GUID_DEFINED_SECTION2 *) InputSection)->DataOffset, > - OutputBufferSize, > - ScratchBufferSize > - ); > - } else { > - if (!CompareGuid ( > - &gTianoCustomDecompressGuid, > - &(((EFI_GUID_DEFINED_SECTION *) InputSection)->SectionDefinitionGuid))) { > - return RETURN_INVALID_PARAMETER; > - } > - // > - // Get guid attribute of guid section. > - // > - *SectionAttribute = ((EFI_GUID_DEFINED_SECTION *) InputSection)->Attributes; > - > - // > - // Call Tiano GetInfo to get the required size info. > - // > - return UefiDecompressGetInfo ( > - (UINT8 *) InputSection + ((EFI_GUID_DEFINED_SECTION *) InputSection)->DataOffset, > - SECTION_SIZE (InputSection) - ((EFI_GUID_DEFINED_SECTION *) InputSection)->DataOffset, > - OutputBufferSize, > - ScratchBufferSize > - ); > - } > -} > - > -/** > - Decompress a Tiano compressed GUIDed section into a caller allocated output buffer. > - > - Decodes the GUIDed section specified by InputSection. > - If GUID for InputSection does not match the GUID that this handler supports, then RETURN_UNSUPPORTED is returned. > - If the data in InputSection can not be decoded, then RETURN_INVALID_PARAMETER is returned. > - If the GUID of InputSection does match the GUID that this handler supports, then InputSection > - is decoded into the buffer specified by OutputBuffer and the authentication status of this > - decode operation is returned in AuthenticationStatus. If the decoded buffer is identical to the > - data in InputSection, then OutputBuffer is set to point at the data in InputSection. Otherwise, > - the decoded data will be placed in caller allocated buffer specified by OutputBuffer. > - > - If InputSection is NULL, then ASSERT(). > - If OutputBuffer is NULL, then ASSERT(). > - If ScratchBuffer is NULL and this decode operation requires a scratch buffer, then ASSERT(). > - If AuthenticationStatus is NULL, then ASSERT(). > - > - > - @param[in] InputSection A pointer to a GUIDed section of an FFS formatted file. > - @param[out] OutputBuffer A pointer to a buffer that contains the result of a decode operation. > - @param[in] ScratchBuffer A caller allocated buffer that may be required by this function > - as a scratch buffer to perform the decode operation. > - @param[out] AuthenticationStatus > - A pointer to the authentication status of the decoded output buffer. > - See the definition of authentication status in the EFI_PEI_GUIDED_SECTION_EXTRACTION_PPI > - section of the PI Specification. EFI_AUTH_STATUS_PLATFORM_OVERRIDE must > - never be set by this handler. > - > - @retval RETURN_SUCCESS The buffer specified by InputSection was decoded. > - @retval RETURN_UNSUPPORTED The section specified by InputSection does not match the GUID this handler supports. > - @retval RETURN_INVALID_PARAMETER The section specified by InputSection can not be decoded. > - > -**/ > -RETURN_STATUS > -EFIAPI > -TianoDecompress ( > - IN CONST VOID *InputSection, > - OUT VOID **OutputBuffer, > - IN VOID *ScratchBuffer, OPTIONAL > - OUT UINT32 *AuthenticationStatus > - ) > -{ > - ASSERT (OutputBuffer != NULL); > - ASSERT (InputSection != NULL); > - > - if (IS_SECTION2 (InputSection)) { > - if (!CompareGuid ( > - &gTianoCustomDecompressGuid, > - &(((EFI_GUID_DEFINED_SECTION2 *) InputSection)->SectionDefinitionGuid))) { > - return RETURN_INVALID_PARAMETER; > - } > - > - // > - // Set Authentication to Zero. > - // > - *AuthenticationStatus = 0; > - > - // > - // Call Tiano Decompress to get the raw data > - // > - return UefiTianoDecompress ( > - (UINT8 *) InputSection + ((EFI_GUID_DEFINED_SECTION2 *) InputSection)->DataOffset, > - *OutputBuffer, > - ScratchBuffer, > - 2 > - ); > - } else { > - if (!CompareGuid ( > - &gTianoCustomDecompressGuid, > - &(((EFI_GUID_DEFINED_SECTION *) InputSection)->SectionDefinitionGuid))) { > - return RETURN_INVALID_PARAMETER; > - } > - > - // > - // Set Authentication to Zero. > - // > - *AuthenticationStatus = 0; > - > - // > - // Call Tiano Decompress to get the raw data > - // > - return UefiTianoDecompress ( > - (UINT8 *) InputSection + ((EFI_GUID_DEFINED_SECTION *) InputSection)->DataOffset, > - *OutputBuffer, > - ScratchBuffer, > - 2 > - ); > - } > -} > - > -/** > - Registers TianoDecompress and TianoDecompressGetInfo handlers with TianoCustomerDecompressGuid > - > - @retval RETURN_SUCCESS Register successfully. > - @retval RETURN_OUT_OF_RESOURCES No enough memory to store this handler. > -**/ > -RETURN_STATUS > -EFIAPI > -TianoDecompressLibConstructor ( > - VOID > -) > -{ > - return ExtractGuidedSectionRegisterHandlers ( > - &gTianoCustomDecompressGuid, > - TianoDecompressGetInfo, > - TianoDecompress > - ); > -} > diff --git a/MdeModulePkg/Library/BaseUefiTianoCustomDecompressLib/BaseUefiTianoCustomDecompressLibInternals.h b/MdeModulePkg/Library/BaseUefiTianoCustomDecompressLib/BaseUefiTianoCustomDecompressLibInternals.h > deleted file mode 100644 > index 846abdb78e..0000000000 > --- a/MdeModulePkg/Library/BaseUefiTianoCustomDecompressLib/BaseUefiTianoCustomDecompressLibInternals.h > +++ /dev/null > @@ -1,214 +0,0 @@ > -/** @file > - Internal data structure and interfaces defintions for UEFI and Tiano Decompress Library. > - > - Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR> > - SPDX-License-Identifier: BSD-2-Clause-Patent > - > -**/ > - > -#ifndef __BASE_UEFI_TIANO_CUSTOM_DECOMPRESS_LIB_INTERNALS_H__ > -#define __BASE_UEFI_TIANO_CUSTOM_DECOMPRESS_LIB_INTERNALS_H__ > - > -#include <PiPei.h> > - > -#include <Guid/TianoDecompress.h> > -#include <Library/BaseLib.h> > -#include <Library/UefiDecompressLib.h> > -#include <Library/DebugLib.h> > -#include <Library/BaseMemoryLib.h> > -#include <Library/ExtractGuidedSectionLib.h> > - > -// > -// Decompression algorithm begins here > -// > -#define BITBUFSIZ 32 > -#define MAXMATCH 256 > -#define THRESHOLD 3 > -#define CODE_BIT 16 > -#define BAD_TABLE - 1 > - > -// > -// C: Char&Len Set; P: Position Set; T: exTra Set > -// > -#define NC (0xff + MAXMATCH + 2 - THRESHOLD) > -#define CBIT 9 > -#define MAXPBIT 5 > -#define TBIT 5 > -#define MAXNP ((1U << MAXPBIT) - 1) > -#define NT (CODE_BIT + 3) > -#if NT > MAXNP > -#define NPT NT > -#else > -#define NPT MAXNP > -#endif > - > -typedef struct { > - UINT8 *mSrcBase; // Starting address of compressed data > - UINT8 *mDstBase; // Starting address of decompressed data > - UINT32 mOutBuf; > - UINT32 mInBuf; > - > - UINT16 mBitCount; > - UINT32 mBitBuf; > - UINT32 mSubBitBuf; > - UINT16 mBlockSize; > - UINT32 mCompSize; > - UINT32 mOrigSize; > - > - UINT16 mBadTableFlag; > - > - UINT16 mLeft[2 * NC - 1]; > - UINT16 mRight[2 * NC - 1]; > - UINT8 mCLen[NC]; > - UINT8 mPTLen[NPT]; > - UINT16 mCTable[4096]; > - UINT16 mPTTable[256]; > - > - /// > - /// The length of the field 'Position Set Code Length Array Size' in Block Header. > - /// For UEFI 2.0 de/compression algorithm, mPBit = 4 > - /// For Tiano de/compression algorithm, mPBit = 5 > - /// > - UINT8 mPBit; > -} SCRATCH_DATA; > - > -/** > - Read NumOfBit of bits from source into mBitBuf. > - > - Shift mBitBuf NumOfBits left. Read in NumOfBits of bits from source. > - > - @param Sd The global scratch data > - @param NumOfBits The number of bits to shift and read. > - > -**/ > -VOID > -FillBuf ( > - IN SCRATCH_DATA *Sd, > - IN UINT16 NumOfBits > - ); > - > -/** > - Get NumOfBits of bits out from mBitBuf. > - > - Get NumOfBits of bits out from mBitBuf. Fill mBitBuf with subsequent > - NumOfBits of bits from source. Returns NumOfBits of bits that are > - popped out. > - > - @param Sd The global scratch data. > - @param NumOfBits The number of bits to pop and read. > - > - @return The bits that are popped out. > - > -**/ > -UINT32 > -GetBits ( > - IN SCRATCH_DATA *Sd, > - IN UINT16 NumOfBits > - ); > - > -/** > - Creates Huffman Code mapping table according to code length array. > - > - Creates Huffman Code mapping table for Extra Set, Char&Len Set > - and Position Set according to code length array. > - > - @param Sd The global scratch data > - @param NumOfChar Number of symbols in the symbol set > - @param BitLen Code length array > - @param TableBits The width of the mapping table > - @param Table The table to be created. > - > - @retval 0 OK. > - @retval BAD_TABLE The table is corrupted. > - > -**/ > -UINT16 > -MakeTable ( > - IN SCRATCH_DATA *Sd, > - IN UINT16 NumOfChar, > - IN UINT8 *BitLen, > - IN UINT16 TableBits, > - OUT UINT16 *Table > - ); > - > -/** > - Decodes a position value. > - > - Get a position value according to Position Huffman Table. > - > - @param Sd the global scratch data > - > - @return The position value decoded. > - > -**/ > -UINT32 > -DecodeP ( > - IN SCRATCH_DATA *Sd > - ); > - > -/** > - Reads code lengths for the Extra Set or the Position Set. > - > - Read in the Extra Set or Position Set Length Array, then > - generate the Huffman code mapping for them. > - > - @param Sd The global scratch data. > - @param nn Number of symbols. > - @param nbit Number of bits needed to represent nn. > - @param Special The special symbol that needs to be taken care of. > - > - @retval 0 OK. > - @retval BAD_TABLE Table is corrupted. > - > -**/ > -UINT16 > -ReadPTLen ( > - IN SCRATCH_DATA *Sd, > - IN UINT16 nn, > - IN UINT16 nbit, > - IN UINT16 Special > - ); > - > -/** > - Reads code lengths for Char&Len Set. > - > - Read in and decode the Char&Len Set Code Length Array, then > - generate the Huffman Code mapping table for the Char&Len Set. > - > - @param Sd the global scratch data > - > -**/ > -VOID > -ReadCLen ( > - SCRATCH_DATA *Sd > - ); > - > -/** > - Decode a character/length value. > - > - Read one value from mBitBuf, Get one code from mBitBuf. If it is at block boundary, generates > - Huffman code mapping table for Extra Set, Code&Len Set and > - Position Set. > - > - @param Sd The global scratch data. > - > - @return The value decoded. > - > -**/ > -UINT16 > -DecodeC ( > - SCRATCH_DATA *Sd > - ); > - > -/** > - Decode the source data and put the resulting data into the destination buffer. > - > - @param Sd The global scratch data > - > -**/ > -VOID > -Decode ( > - SCRATCH_DATA *Sd > - ); > - > -#endif > diff --git a/MdeModulePkg/Library/BaseUefiTianoCustomDecompressLib/BaseUefiTianoDecompressLib.uni b/MdeModulePkg/Library/BaseUefiTianoCustomDecompressLib/BaseUefiTianoDecompressLib.uni > deleted file mode 100644 > index c384dacbef..0000000000 > --- a/MdeModulePkg/Library/BaseUefiTianoCustomDecompressLib/BaseUefiTianoDecompressLib.uni > +++ /dev/null > @@ -1,16 +0,0 @@ > -// /** @file > -// This library instance produces UefiDecompressLib and Tiano Custom decompression algorithm. > -// > -// Tiano custom decompression algorithm shares most of code with Uefi Decompress algorithm. > -// > -// Copyright (c) 2006 - 2014, Intel Corporation. All rights reserved.<BR> > -// > -// SPDX-License-Identifier: BSD-2-Clause-Patent > -// > -// **/ > - > - > -#string STR_MODULE_ABSTRACT #language en-US "Produces UefiDecompressLib and Tiano Custom decompression algorithm" > - > -#string STR_MODULE_DESCRIPTION #language en-US "Tiano custom decompression algorithm shares most of the code with the UEFI Decompress algorithm." > - > diff --git a/MdeModulePkg/MdeModulePkg.dec b/MdeModulePkg/MdeModulePkg.dec > index be84916cc0..1261f80537 100644 > --- a/MdeModulePkg/MdeModulePkg.dec > +++ b/MdeModulePkg/MdeModulePkg.dec > @@ -371,14 +371,10 @@ > ## GUID indicates the LZMA custom compress/decompress algorithm. > # Include/Guid/LzmaDecompress.h > gLzmaCustomDecompressGuid = { 0xEE4E5898, 0x3914, 0x4259, { 0x9D, 0x6E, 0xDC, 0x7B, 0xD7, 0x94, 0x03, 0xCF }} > gLzmaF86CustomDecompressGuid = { 0xD42AE6BD, 0x1352, 0x4bfb, { 0x90, 0x9A, 0xCA, 0x72, 0xA6, 0xEA, 0xE8, 0x89 }} > > - ## GUID indicates the tiano custom compress/decompress algorithm. > - # Include/Guid/TianoDecompress.h > - gTianoCustomDecompressGuid = { 0xA31280AD, 0x481E, 0x41B6, { 0x95, 0xE8, 0x12, 0x7F, 0x4C, 0x98, 0x47, 0x79 }} > - > ## Include/Guid/TtyTerm.h > gEfiTtyTermGuid = { 0x7d916d80, 0x5bb1, 0x458c, {0xa4, 0x8f, 0xe2, 0x5f, 0xdd, 0x51, 0xef, 0x94 }} > > ## Include/Guid/HiiBootMaintenanceFormset.h > gEfiIfrBootMaintenanceGuid = { 0xb2dedc91, 0xd59f, 0x48d2, { 0x89, 0x8a, 0x12, 0x49, 0xc, 0x74, 0xa4, 0xe0 }} > diff --git a/MdeModulePkg/MdeModulePkg.dsc b/MdeModulePkg/MdeModulePkg.dsc > index b302f4a4f3..0da28e74c2 100644 > --- a/MdeModulePkg/MdeModulePkg.dsc > +++ b/MdeModulePkg/MdeModulePkg.dsc > @@ -311,11 +311,10 @@ > MdeModulePkg/Library/FrameBufferBltLib/FrameBufferBltLib.inf > MdeModulePkg/Library/NonDiscoverableDeviceRegistrationLib/NonDiscoverableDeviceRegistrationLib.inf > MdeModulePkg/Library/BaseBmpSupportLib/BaseBmpSupportLib.inf > MdeModulePkg/Library/DisplayUpdateProgressLibGraphics/DisplayUpdateProgressLibGraphics.inf > MdeModulePkg/Library/DisplayUpdateProgressLibText/DisplayUpdateProgressLibText.inf > - MdeModulePkg/Library/BaseUefiTianoCustomDecompressLib/BaseUefiTianoCustomDecompressLib.inf > > MdeModulePkg/Universal/BdsDxe/BdsDxe.inf > MdeModulePkg/Application/BootManagerMenuApp/BootManagerMenuApp.inf > MdeModulePkg/Application/UiApp/UiApp.inf{ > <LibraryClasses> > diff --git a/MdeModulePkg/Library/BaseUefiTianoCustomDecompressLib/BaseUefiTianoCustomDecompressLib.inf b/MdePkg/Library/BaseUefiDecompressLib/BaseTianoCustomDecompressLib.inf > similarity index 88% > rename from MdeModulePkg/Library/BaseUefiTianoCustomDecompressLib/BaseUefiTianoCustomDecompressLib.inf > rename to MdePkg/Library/BaseUefiDecompressLib/BaseTianoCustomDecompressLib.inf > index c9c19d6d3c..5d2b54e2db 100644 > --- a/MdeModulePkg/Library/BaseUefiTianoCustomDecompressLib/BaseUefiTianoCustomDecompressLib.inf > +++ b/MdePkg/Library/BaseUefiDecompressLib/BaseTianoCustomDecompressLib.inf > @@ -23,16 +23,15 @@ > # > # VALID_ARCHITECTURES = IA32 X64 EBC > # > > [Sources] > - BaseUefiTianoCustomDecompressLibInternals.h > - BaseUefiTianoCustomDecompressLib.c > + BaseUefiDecompressLibInternals.h > + BaseUefiDecompressLib.c > > [Packages] > MdePkg/MdePkg.dec > - MdeModulePkg/MdeModulePkg.dec > > [LibraryClasses] > BaseLib > DebugLib > BaseMemoryLib > diff --git a/MdePkg/Library/BaseUefiDecompressLib/BaseUefiDecompressLib.c b/MdePkg/Library/BaseUefiDecompressLib/BaseUefiDecompressLib.c > index 8e502b0fdb..c390363d14 100644 > --- a/MdePkg/Library/BaseUefiDecompressLib/BaseUefiDecompressLib.c > +++ b/MdePkg/Library/BaseUefiDecompressLib/BaseUefiDecompressLib.c > @@ -5,16 +5,17 @@ > Portions copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR> > SPDX-License-Identifier: BSD-2-Clause-Patent > > **/ > > - > +#include <PiPei.h> > #include <Base.h> > #include <Library/BaseLib.h> > #include <Library/DebugLib.h> > #include <Library/BaseMemoryLib.h> > #include <Library/UefiDecompressLib.h> > +#include <Library/ExtractGuidedSectionLib.h> > > #include "BaseUefiDecompressLibInternals.h" > > /** > Read NumOfBit of bits from source into mBitBuf. > @@ -747,14 +748,15 @@ UefiDecompressGetInfo ( > The source buffer specified by Source is corrupted > (not in a valid compressed format). > **/ > RETURN_STATUS > EFIAPI > -UefiDecompress ( > +UefiTianoDecompress ( > IN CONST VOID *Source, > IN OUT VOID *Destination, > - IN OUT VOID *Scratch OPTIONAL > + IN OUT VOID *Scratch, > + IN UINT32 Version > ) > { > UINT32 CompSize; > UINT32 OrigSize; > SCRATCH_DATA *Sd; > @@ -784,12 +786,22 @@ UefiDecompress ( > SetMem (Sd, sizeof (SCRATCH_DATA), 0); > > // > // The length of the field 'Position Set Code Length Array Size' in Block Header. > // For UEFI 2.0 de/compression algorithm(Version 1), mPBit = 4 > + // For Tiano de/compression algorithm(Version 2), mPBit = 5 > // > - Sd->mPBit = 4; > + switch (Version) { > + case 1 : > + Sd->mPBit = 4; > + break; > + case 2 : > + Sd->mPBit = 5; > + break; > + default: > + ASSERT (FALSE); > + } > Sd->mSrcBase = (UINT8 *)Src; > Sd->mDstBase = Dst; > // > // CompSize and OrigSize are calculated in bytes > // > @@ -813,5 +825,246 @@ UefiDecompress ( > return RETURN_INVALID_PARAMETER; > } > > return RETURN_SUCCESS; > } > + > +/** > + Decompresses a UEFI compressed source buffer. > + > + Extracts decompressed data to its original form. > + This function is designed so that the decompression algorithm can be implemented > + without using any memory services. As a result, this function is not allowed to > + call any memory allocation services in its implementation. It is the caller's > + responsibility to allocate and free the Destination and Scratch buffers. > + If the compressed source data specified by Source is successfully decompressed > + into Destination, then RETURN_SUCCESS is returned. If the compressed source data > + specified by Source is not in a valid compressed data format, > + then RETURN_INVALID_PARAMETER is returned. > + > + If Source is NULL, then ASSERT(). > + If Destination is NULL, then ASSERT(). > + If the required scratch buffer size > 0 and Scratch is NULL, then ASSERT(). > + > + @param Source The source buffer containing the compressed data. > + @param Destination The destination buffer to store the decompressed data > + @param Scratch A temporary scratch buffer that is used to perform the decompression. > + This is an optional parameter that may be NULL if the > + required scratch buffer size is 0. > + > + @retval RETURN_SUCCESS Decompression completed successfully, and > + the uncompressed buffer is returned in Destination. > + @retval RETURN_INVALID_PARAMETER > + The source buffer specified by Source is corrupted > + (not in a valid compressed format). > +**/ > +RETURN_STATUS > +EFIAPI > +UefiDecompress ( > + IN CONST VOID *Source, > + IN OUT VOID *Destination, > + IN OUT VOID *Scratch OPTIONAL > + ) > +{ > + return UefiTianoDecompress (Source, Destination, Scratch, 1); > +} > + > +/** > + Examines a GUIDed section and returns the size of the decoded buffer and the > + size of an optional scratch buffer required to actually decode the data in a GUIDed section. > + > + Examines a GUIDed section specified by InputSection. > + If GUID for InputSection does not match the GUID that this handler supports, > + then RETURN_UNSUPPORTED is returned. > + If the required information can not be retrieved from InputSection, > + then RETURN_INVALID_PARAMETER is returned. > + If the GUID of InputSection does match the GUID that this handler supports, > + then the size required to hold the decoded buffer is returned in OututBufferSize, > + the size of an optional scratch buffer is returned in ScratchSize, and the Attributes field > + from EFI_GUID_DEFINED_SECTION header of InputSection is returned in SectionAttribute. > + > + If InputSection is NULL, then ASSERT(). > + If OutputBufferSize is NULL, then ASSERT(). > + If ScratchBufferSize is NULL, then ASSERT(). > + If SectionAttribute is NULL, then ASSERT(). > + > + > + @param[in] InputSection A pointer to a GUIDed section of an FFS formatted file. > + @param[out] OutputBufferSize A pointer to the size, in bytes, of an output buffer required > + if the buffer specified by InputSection were decoded. > + @param[out] ScratchBufferSize A pointer to the size, in bytes, required as scratch space > + if the buffer specified by InputSection were decoded. > + @param[out] SectionAttribute A pointer to the attributes of the GUIDed section. See the Attributes > + field of EFI_GUID_DEFINED_SECTION in the PI Specification. > + > + @retval RETURN_SUCCESS The information about InputSection was returned. > + @retval RETURN_UNSUPPORTED The section specified by InputSection does not match the GUID this handler supports. > + @retval RETURN_INVALID_PARAMETER The information can not be retrieved from the section specified by InputSection. > + > +**/ > +RETURN_STATUS > +EFIAPI > +TianoDecompressGetInfo ( > + IN CONST VOID *InputSection, > + OUT UINT32 *OutputBufferSize, > + OUT UINT32 *ScratchBufferSize, > + OUT UINT16 *SectionAttribute > + ) > + > +{ > + ASSERT (SectionAttribute != NULL); > + > + if (InputSection == NULL) { > + return RETURN_INVALID_PARAMETER; > + } > + > + if (IS_SECTION2 (InputSection)) { > + if (!CompareGuid ( > + &gTianoCustomDecompressGuid, > + &(((EFI_GUID_DEFINED_SECTION2 *) InputSection)->SectionDefinitionGuid))) { > + return RETURN_INVALID_PARAMETER; > + } > + // > + // Get guid attribute of guid section. > + // > + *SectionAttribute = ((EFI_GUID_DEFINED_SECTION2 *) InputSection)->Attributes; > + > + // > + // Call Tiano GetInfo to get the required size info. > + // > + return UefiDecompressGetInfo ( > + (UINT8 *) InputSection + ((EFI_GUID_DEFINED_SECTION2 *) InputSection)->DataOffset, > + SECTION2_SIZE (InputSection) - ((EFI_GUID_DEFINED_SECTION2 *) InputSection)->DataOffset, > + OutputBufferSize, > + ScratchBufferSize > + ); > + } else { > + if (!CompareGuid ( > + &gTianoCustomDecompressGuid, > + &(((EFI_GUID_DEFINED_SECTION *) InputSection)->SectionDefinitionGuid))) { > + return RETURN_INVALID_PARAMETER; > + } > + // > + // Get guid attribute of guid section. > + // > + *SectionAttribute = ((EFI_GUID_DEFINED_SECTION *) InputSection)->Attributes; > + > + // > + // Call Tiano GetInfo to get the required size info. > + // > + return UefiDecompressGetInfo ( > + (UINT8 *) InputSection + ((EFI_GUID_DEFINED_SECTION *) InputSection)->DataOffset, > + SECTION_SIZE (InputSection) - ((EFI_GUID_DEFINED_SECTION *) InputSection)->DataOffset, > + OutputBufferSize, > + ScratchBufferSize > + ); > + } > +} > + > +/** > + Decompress a Tiano compressed GUIDed section into a caller allocated output buffer. > + > + Decodes the GUIDed section specified by InputSection. > + If GUID for InputSection does not match the GUID that this handler supports, then RETURN_UNSUPPORTED is returned. > + If the data in InputSection can not be decoded, then RETURN_INVALID_PARAMETER is returned. > + If the GUID of InputSection does match the GUID that this handler supports, then InputSection > + is decoded into the buffer specified by OutputBuffer and the authentication status of this > + decode operation is returned in AuthenticationStatus. If the decoded buffer is identical to the > + data in InputSection, then OutputBuffer is set to point at the data in InputSection. Otherwise, > + the decoded data will be placed in caller allocated buffer specified by OutputBuffer. > + > + If InputSection is NULL, then ASSERT(). > + If OutputBuffer is NULL, then ASSERT(). > + If ScratchBuffer is NULL and this decode operation requires a scratch buffer, then ASSERT(). > + If AuthenticationStatus is NULL, then ASSERT(). > + > + > + @param[in] InputSection A pointer to a GUIDed section of an FFS formatted file. > + @param[out] OutputBuffer A pointer to a buffer that contains the result of a decode operation. > + @param[in] ScratchBuffer A caller allocated buffer that may be required by this function > + as a scratch buffer to perform the decode operation. > + @param[out] AuthenticationStatus > + A pointer to the authentication status of the decoded output buffer. > + See the definition of authentication status in the EFI_PEI_GUIDED_SECTION_EXTRACTION_PPI > + section of the PI Specification. EFI_AUTH_STATUS_PLATFORM_OVERRIDE must > + never be set by this handler. > + > + @retval RETURN_SUCCESS The buffer specified by InputSection was decoded. > + @retval RETURN_UNSUPPORTED The section specified by InputSection does not match the GUID this handler supports. > + @retval RETURN_INVALID_PARAMETER The section specified by InputSection can not be decoded. > + > +**/ > +RETURN_STATUS > +EFIAPI > +TianoDecompress ( > + IN CONST VOID *InputSection, > + OUT VOID **OutputBuffer, > + IN VOID *ScratchBuffer, OPTIONAL > + OUT UINT32 *AuthenticationStatus > + ) > +{ > + ASSERT (OutputBuffer != NULL); > + ASSERT (InputSection != NULL); > + > + if (IS_SECTION2 (InputSection)) { > + if (!CompareGuid ( > + &gTianoCustomDecompressGuid, > + &(((EFI_GUID_DEFINED_SECTION2 *) InputSection)->SectionDefinitionGuid))) { > + return RETURN_INVALID_PARAMETER; > + } > + > + // > + // Set Authentication to Zero. > + // > + *AuthenticationStatus = 0; > + > + // > + // Call Tiano Decompress to get the raw data > + // > + return UefiTianoDecompress ( > + (UINT8 *) InputSection + ((EFI_GUID_DEFINED_SECTION2 *) InputSection)->DataOffset, > + *OutputBuffer, > + ScratchBuffer, > + 2 > + ); > + } else { > + if (!CompareGuid ( > + &gTianoCustomDecompressGuid, > + &(((EFI_GUID_DEFINED_SECTION *) InputSection)->SectionDefinitionGuid))) { > + return RETURN_INVALID_PARAMETER; > + } > + > + // > + // Set Authentication to Zero. > + // > + *AuthenticationStatus = 0; > + > + // > + // Call Tiano Decompress to get the raw data > + // > + return UefiTianoDecompress ( > + (UINT8 *) InputSection + ((EFI_GUID_DEFINED_SECTION *) InputSection)->DataOffset, > + *OutputBuffer, > + ScratchBuffer, > + 2 > + ); > + } > +} > + > +/** > + Registers TianoDecompress and TianoDecompressGetInfo handlers with TianoCustomerDecompressGuid > + > + @retval RETURN_SUCCESS Register successfully. > + @retval RETURN_OUT_OF_RESOURCES No enough memory to store this handler. > +**/ > +RETURN_STATUS > +EFIAPI > +TianoDecompressLibConstructor ( > + VOID > +) > +{ > + return ExtractGuidedSectionRegisterHandlers ( > + &gTianoCustomDecompressGuid, > + TianoDecompressGetInfo, > + TianoDecompress > + ); > +} > diff --git a/MdePkg/Library/BaseUefiDecompressLib/BaseUefiDecompressLib.inf b/MdePkg/Library/BaseUefiDecompressLib/BaseUefiDecompressLib.inf > index 356c39a4fe..b25680adc5 100644 > --- a/MdePkg/Library/BaseUefiDecompressLib/BaseUefiDecompressLib.inf > +++ b/MdePkg/Library/BaseUefiDecompressLib/BaseUefiDecompressLib.inf > @@ -34,5 +34,7 @@ > [LibraryClasses] > BaseLib > DebugLib > BaseMemoryLib > > +[Guids] > + gTianoCustomDecompressGuid ## PRODUCES ## UNDEFINED # specifies tiano custom decompress algorithm. > diff --git a/MdePkg/Library/BaseUefiDecompressLib/BaseUefiDecompressLib.uni b/MdePkg/Library/BaseUefiDecompressLib/BaseUefiDecompressLib.uni > index 1cec6bd965..25f379d047 100644 > --- a/MdePkg/Library/BaseUefiDecompressLib/BaseUefiDecompressLib.uni > +++ b/MdePkg/Library/BaseUefiDecompressLib/BaseUefiDecompressLib.uni > @@ -1,16 +1,16 @@ > // /** @file > // UEFI Decompress Library implementation. > // > // UEFI Decompress Library implementation. > // > -// Copyright (c) 2007 - 2014, Intel Corporation. All rights reserved.<BR> > +// Copyright (c) 2007 - 2019, Intel Corporation. All rights reserved.<BR> > // > // SPDX-License-Identifier: BSD-2-Clause-Patent > // > // **/ > > > -#string STR_MODULE_ABSTRACT #language en-US "UEFI Decompress Library implementation" > +#string STR_MODULE_ABSTRACT #language en-US "UEFI Decompress Library and Tiano Custom Decompress Library implementation." > > -#string STR_MODULE_DESCRIPTION #language en-US "UEFI Decompress Library implementation." > +#string STR_MODULE_DESCRIPTION #language en-US "Tiano custom decompression algorithm shares most of the code with the UEFI Decompress algorithm." > > diff --git a/MdePkg/MdePkg.dec b/MdePkg/MdePkg.dec > index e2ea8fff66..4344ea3594 100644 > --- a/MdePkg/MdePkg.dec > +++ b/MdePkg/MdePkg.dec > @@ -759,10 +759,15 @@ > # GUID defined in Windows UEFI Firmware Update Platform doc > # > ## Include/IndustryStandard/WindowsUxCapsule.h > gWindowsUxCapsuleGuid = { 0x3b8c8162, 0x188c, 0x46a4, { 0xae, 0xc9, 0xbe, 0x43, 0xf1, 0xd6, 0x56, 0x97}} > > + # > + # GUID indicates the tiano custom compress/decompress algorithm. > + # > + gTianoCustomDecompressGuid = { 0xA31280AD, 0x481E, 0x41B6, { 0x95, 0xE8, 0x12, 0x7F, 0x4C, 0x98, 0x47, 0x79 }} > + > [Guids.IA32, Guids.X64] > ## Include/Guid/Cper.h > gEfiIa32X64ErrorTypeCacheCheckGuid = { 0xA55701F5, 0xE3EF, 0x43de, { 0xAC, 0x72, 0x24, 0x9B, 0x57, 0x3F, 0xAD, 0x2C }} > > ## Include/Guid/Cper.h > diff --git a/MdePkg/MdePkg.dsc b/MdePkg/MdePkg.dsc > index 21743e384c..dbc24a297e 100644 > --- a/MdePkg/MdePkg.dsc > +++ b/MdePkg/MdePkg.dsc > @@ -55,10 +55,11 @@ > MdePkg/Library/BaseReportStatusCodeLibNull/BaseReportStatusCodeLibNull.inf > MdePkg/Library/BaseSerialPortLibNull/BaseSerialPortLibNull.inf > MdePkg/Library/BaseSynchronizationLib/BaseSynchronizationLib.inf > MdePkg/Library/BaseTimerLibNullTemplate/BaseTimerLibNullTemplate.inf > MdePkg/Library/BaseUefiDecompressLib/BaseUefiDecompressLib.inf > + MdePkg/Library/BaseUefiDecompressLib/BaseTianoCustomDecompressLib.inf > MdePkg/Library/BaseSmbusLibNull/BaseSmbusLibNull.inf > MdePkg/Library/BaseSafeIntLib/BaseSafeIntLib.inf > > MdePkg/Library/DxeCoreEntryPoint/DxeCoreEntryPoint.inf > MdePkg/Library/DxeCoreHobLib/DxeCoreHobLib.inf > -- > 2.18.0.windows.1 > ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [edk2-devel] [RFC] [patch] Merge MdeModulePkg\BaseTianoCustomDecompressLib into MdePkg\BaseUefiDecompressLib 2019-04-30 21:35 ` Leif Lindholm @ 2019-05-01 23:46 ` Dandan Bi 2019-05-02 9:20 ` Leif Lindholm 0 siblings, 1 reply; 5+ messages in thread From: Dandan Bi @ 2019-05-01 23:46 UTC (permalink / raw) To: devel@edk2.groups.io, leif.lindholm@linaro.org Cc: Kinney, Michael D, Gao, Liming, Wang, Jian J, Wu, Hao A, Ni, Ray, Sun, Zailiang, Qian, Yi, Ard Biesheuvel > -----Original Message----- > From: devel@edk2.groups.io [mailto:devel@edk2.groups.io] On Behalf Of > Leif Lindholm > Sent: Wednesday, May 01, 2019 5:35 AM > To: Bi, Dandan <dandan.bi@intel.com> > Cc: devel@edk2.groups.io; Kinney, Michael D > <michael.d.kinney@intel.com>; Gao, Liming <liming.gao@intel.com>; Wang, > Jian J <jian.j.wang@intel.com>; Wu, Hao A <hao.a.wu@intel.com>; Ni, Ray > <ray.ni@intel.com>; Sun, Zailiang <zailiang.sun@intel.com>; Qian, Yi > <yi.qian@intel.com>; Ard Biesheuvel <ard.biesheuvel@linaro.org> > Subject: Re: [edk2-devel] [RFC] [patch] Merge > MdeModulePkg\BaseTianoCustomDecompressLib into > MdePkg\BaseUefiDecompressLib > > On Tue, Apr 30, 2019 at 04:58:41PM +0800, Dandan Bi wrote: > > BaseUefiDecompressLib in MdePkg implements the UEFI Decompress > algorithm. > > BaseUefiTianoCustomDecompressLib in MdeModulePkg implements the > UEFI Decompress algorithm > > and Tiano Custom Decompression algorithm. > > Tiano custom decompression algorithm shares most of the code with the > UEFI Decompress algorithm. > > So BaseUefiDecompressLib and BaseUefiTianoCustomDecompressLib have > lots common code. > > We plan to merge the MdeModulePkg\BaseTianoCustomDecompressLib > into MdePkg\BaseUefiDecompressLib, > > in order to reduce the duplicated codes and maintain these two > Decompress algorithms easily. > > > > Propose to update: > > 1. Make the implemtations of these two Decompress algorithms in > exstring MdePkg/Library/BaseUefiDecompressLib. > > 2. keep existing BaseUefiDecompressLib.inf in > MdePkg/Library/BaseUefiDecompressLib for UEFI Decompress algorithm. > > 3. Add BaseTianoCustomDecompressLib.inf in > MdePkg/Library/BaseUefiDecompressLib for Tiano Custom Decompression > algorithm. > > 4. Make existing BaseUefiDecompressLib.c in > MdePkg/Library/BaseUefiDecompressLib to support the Tiano Custom > Decompression algorithm > > besides existing UEFI Decompress algorithm. > > 5. Remove the gTianoCustomDecompressGuid header file from > MdeModulePkg/Include/Guid/TianoDecompress.h > > Move the gTianoCustomDecompressGuid definition from > MdeModulePkg.dec to MdePkg.dec. > > 6. Remove the > MdeModulePkg/Library/BaseUefiTianoCustomDecompressLib from edk2. > > > > The draf updates are covered by this patch. > > > > Impact analysis: > > 1. No impact to the usage of BaseUefiDecompressLib. > > 2. Need to update the consumers of > > > MdeModulePkg/Library/BaseUefiTianoCustomDecompressLib/BaseUefiTian > oCustomDecompressLib.inf > > to use > > > MdePkg/Library/BaseUefiDecompressLib/BaseTianoCustomDecompressLib.i > nf > > 3. Current impacted platforms: > > edk2 repo: > > Nt32Pkg > > Quark > > vlv2tbltdevicepkg > > edk2-platforms repo: > > AMD Overdrive > > Lemaker Cello > > Raspberry Pi3 > > SoftIron 1000 > > D03/D05/D06 > > Hikey/Hikey960 > > > > For platforms in edk2 repo, we can add the > BaseTianoCustomDecompressLib.inf in > MdePkg/Library/BaseUefiDecompressLib firstly > > and then update platform consumers, remove the > MdeModulePkg/Library/BaseUefiTianoCustomDecompressLib at last. > > > > For the platforms in edk2-platforms repo, I find they don't use the Tiano > Custom Decompression algorithm actually. > > So we can update them to use the > MdePkg/Library/BaseUefiDecompressLib/BaseUefiDecompressLib.inf firstly > to avoid any > > imconpatible changes. > > That sounds good to me. But can you explain how you determined they > don't use the algorithm? The Tiano Custom Decompression algorithm is registered with TianoCustomDecompress Guid. TianoCustomDecompress A31280AD-481E-41B6-95E8-127F4C984779 We can detect whether this Guid is used in fdf file to see whether the Tiano Compression algorithm is used. For the platforms in edk2-platforms repo, A31280AD-481E-41B6-95E8-127F4C984779 is used to define the TIANOCOMPRESSED rule, but this rule is not used. Thanks, Dandan > > Cc: Michael D Kinney <michael.d.kinney@intel.com> > > Cc: Liming Gao <liming.gao@intel.com> > > Cc: Jian J Wang <jian.j.wang@intel.com> > > Cc: Hao Wu <hao.a.wu@intel.com> > > Cc: Ray Ni <ray.ni@intel.com> > > Cc: Zailiang Sun <zailiang.sun@intel.com> > > Cc: Yi Qian <yi.qian@intel.com> > > Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org> > > Cc: Leif Lindholm <leif.lindholm@linaro.org> > > > > Signed-off-by: Dandan Bi <dandan.bi@intel.com> > > --- > > MdeModulePkg/Include/Guid/TianoDecompress.h | 22 - > > .../BaseUefiTianoCustomDecompressLib.c | 1063 ----------------- > > ...aseUefiTianoCustomDecompressLibInternals.h | 214 ---- > > .../BaseUefiTianoDecompressLib.uni | 16 - > > MdeModulePkg/MdeModulePkg.dec | 4 - > > MdeModulePkg/MdeModulePkg.dsc | 1 - > > .../BaseTianoCustomDecompressLib.inf | 5 +- > > .../BaseUefiDecompressLib.c | 261 +++- > > .../BaseUefiDecompressLib.inf | 2 + > > .../BaseUefiDecompressLib.uni | 6 +- > > MdePkg/MdePkg.dec | 5 + > > MdePkg/MdePkg.dsc | 1 + > > Please use --stat=1000 --stat-graph-width=20 when generating patches. > > / > Leif > > > 12 files changed, 270 insertions(+), 1330 deletions(-) > > delete mode 100644 MdeModulePkg/Include/Guid/TianoDecompress.h > > delete mode 100644 > MdeModulePkg/Library/BaseUefiTianoCustomDecompressLib/BaseUefiTian > oCustomDecompressLib.c > > delete mode 100644 > MdeModulePkg/Library/BaseUefiTianoCustomDecompressLib/BaseUefiTian > oCustomDecompressLibInternals.h > > delete mode 100644 > MdeModulePkg/Library/BaseUefiTianoCustomDecompressLib/BaseUefiTian > oDecompressLib.uni > > rename > MdeModulePkg/Library/BaseUefiTianoCustomDecompressLib/BaseUefiTian > oCustomDecompressLib.inf => > MdePkg/Library/BaseUefiDecompressLib/BaseTianoCustomDecompressLib.i > nf (88%) > > > > diff --git a/MdeModulePkg/Include/Guid/TianoDecompress.h > b/MdeModulePkg/Include/Guid/TianoDecompress.h > > deleted file mode 100644 > > index 40f74f88f3..0000000000 > > --- a/MdeModulePkg/Include/Guid/TianoDecompress.h > > +++ /dev/null > > @@ -1,22 +0,0 @@ > > -/** @file > > - Tiano Custom decompress Guid definition. > > - > > -Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR> > > -SPDX-License-Identifier: BSD-2-Clause-Patent > > - > > -**/ > > - > > -#ifndef __TIANO_CUSTOM_DECOMPRESS_GUID_H__ > > -#define __TIANO_CUSTOM_DECOMPRESS_GUID_H__ > > - > > -/// > > -/// The Global ID used to identify a section of an FFS file of type > > -/// EFI_SECTION_GUID_DEFINED, whose contents have been compressed > using > > -/// Tiano Custom compression. > > -/// > > -#define TIANO_CUSTOM_DECOMPRESS_GUID \ > > - { 0xA31280AD, 0x481E, 0x41B6, { 0x95, 0xE8, 0x12, 0x7F, 0x4C, 0x98, > 0x47, 0x79 } } > > - > > -extern GUID gTianoCustomDecompressGuid; > > - > > -#endif > > diff --git > a/MdeModulePkg/Library/BaseUefiTianoCustomDecompressLib/BaseUefiTi > anoCustomDecompressLib.c > b/MdeModulePkg/Library/BaseUefiTianoCustomDecompressLib/BaseUefiTi > anoCustomDecompressLib.c > > deleted file mode 100644 > > index 38b66b1906..0000000000 > > --- > a/MdeModulePkg/Library/BaseUefiTianoCustomDecompressLib/BaseUefiTi > anoCustomDecompressLib.c > > +++ /dev/null > > @@ -1,1063 +0,0 @@ > > -/** @file > > - UEFI and Tiano Custom Decompress Library > > - It will do Tiano or UEFI decompress with different verison parameter. > > - > > -Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR> > > -SPDX-License-Identifier: BSD-2-Clause-Patent > > - > > -**/ > > - > > -#include "BaseUefiTianoCustomDecompressLibInternals.h" > > - > > -/** > > - Shift mBitBuf NumOfBits left. Read in NumOfBits of bits from source. > > - > > - @param Sd The global scratch data > > - @param NumOfBits The number of bits to shift and read. > > -**/ > > -VOID > > -FillBuf ( > > - IN SCRATCH_DATA *Sd, > > - IN UINT16 NumOfBits > > - ) > > -{ > > - // > > - // Left shift NumOfBits of bits in advance > > - // > > - Sd->mBitBuf = (UINT32) LShiftU64 (((UINT64)Sd->mBitBuf), NumOfBits); > > - > > - // > > - // Copy data needed in bytes into mSbuBitBuf > > - // > > - while (NumOfBits > Sd->mBitCount) { > > - NumOfBits = (UINT16) (NumOfBits - Sd->mBitCount); > > - Sd->mBitBuf |= (UINT32) LShiftU64 (((UINT64)Sd->mSubBitBuf), > NumOfBits); > > - > > - if (Sd->mCompSize > 0) { > > - // > > - // Get 1 byte into SubBitBuf > > - // > > - Sd->mCompSize--; > > - Sd->mSubBitBuf = 0; > > - Sd->mSubBitBuf = Sd->mSrcBase[Sd->mInBuf++]; > > - Sd->mBitCount = 8; > > - > > - } else { > > - // > > - // No more bits from the source, just pad zero bit. > > - // > > - Sd->mSubBitBuf = 0; > > - Sd->mBitCount = 8; > > - > > - } > > - } > > - > > - // > > - // Calculate additional bit count read to update mBitCount > > - // > > - Sd->mBitCount = (UINT16) (Sd->mBitCount - NumOfBits); > > - > > - // > > - // Copy NumOfBits of bits from mSubBitBuf into mBitBuf > > - // > > - Sd->mBitBuf |= Sd->mSubBitBuf >> Sd->mBitCount; > > -} > > - > > -/** > > - Get NumOfBits of bits out from mBitBuf > > - > > - Get NumOfBits of bits out from mBitBuf. Fill mBitBuf with subsequent > > - NumOfBits of bits from source. Returns NumOfBits of bits that are > > - popped out. > > - > > - @param Sd The global scratch data. > > - @param NumOfBits The number of bits to pop and read. > > - > > - @return The bits that are popped out. > > - > > -**/ > > -UINT32 > > -GetBits ( > > - IN SCRATCH_DATA *Sd, > > - IN UINT16 NumOfBits > > - ) > > -{ > > - UINT32 OutBits; > > - > > - // > > - // Pop NumOfBits of Bits from Left > > - // > > - OutBits = (UINT32) (Sd->mBitBuf >> (BITBUFSIZ - NumOfBits)); > > - > > - // > > - // Fill up mBitBuf from source > > - // > > - FillBuf (Sd, NumOfBits); > > - > > - return OutBits; > > -} > > - > > -/** > > - Creates Huffman Code mapping table according to code length array. > > - > > - Creates Huffman Code mapping table for Extra Set, Char&Len Set > > - and Position Set according to code length array. > > - If TableBits > 16, then ASSERT (). > > - > > - @param Sd The global scratch data > > - @param NumOfChar Number of symbols in the symbol set > > - @param BitLen Code length array > > - @param TableBits The width of the mapping table > > - @param Table The table to be created. > > - > > - @retval 0 OK. > > - @retval BAD_TABLE The table is corrupted. > > - > > -**/ > > -UINT16 > > -MakeTable ( > > - IN SCRATCH_DATA *Sd, > > - IN UINT16 NumOfChar, > > - IN UINT8 *BitLen, > > - IN UINT16 TableBits, > > - OUT UINT16 *Table > > - ) > > -{ > > - UINT16 Count[17]; > > - UINT16 Weight[17]; > > - UINT16 Start[18]; > > - UINT16 *Pointer; > > - UINT16 Index3; > > - UINT16 Index; > > - UINT16 Len; > > - UINT16 Char; > > - UINT16 JuBits; > > - UINT16 Avail; > > - UINT16 NextCode; > > - UINT16 Mask; > > - UINT16 WordOfStart; > > - UINT16 WordOfCount; > > - UINT16 MaxTableLength; > > - > > - // > > - // The maximum mapping table width supported by this internal > > - // working function is 16. > > - // > > - ASSERT (TableBits <= 16); > > - > > - for (Index = 0; Index <= 16; Index++) { > > - Count[Index] = 0; > > - } > > - > > - for (Index = 0; Index < NumOfChar; Index++) { > > - if (BitLen[Index] > 16) { > > - return (UINT16) BAD_TABLE; > > - } > > - Count[BitLen[Index]]++; > > - } > > - > > - Start[0] = 0; > > - Start[1] = 0; > > - > > - for (Index = 1; Index <= 16; Index++) { > > - WordOfStart = Start[Index]; > > - WordOfCount = Count[Index]; > > - Start[Index + 1] = (UINT16) (WordOfStart + (WordOfCount << (16 - > Index))); > > - } > > - > > - if (Start[17] != 0) { > > - /*(1U << 16)*/ > > - return (UINT16) BAD_TABLE; > > - } > > - > > - JuBits = (UINT16) (16 - TableBits); > > - > > - Weight[0] = 0; > > - for (Index = 1; Index <= TableBits; Index++) { > > - Start[Index] >>= JuBits; > > - Weight[Index] = (UINT16) (1U << (TableBits - Index)); > > - } > > - > > - while (Index <= 16) { > > - Weight[Index] = (UINT16) (1U << (16 - Index)); > > - Index++; > > - } > > - > > - Index = (UINT16) (Start[TableBits + 1] >> JuBits); > > - > > - if (Index != 0) { > > - Index3 = (UINT16) (1U << TableBits); > > - if (Index < Index3) { > > - SetMem16 (Table + Index, (Index3 - Index) * sizeof (*Table), 0); > > - } > > - } > > - > > - Avail = NumOfChar; > > - Mask = (UINT16) (1U << (15 - TableBits)); > > - MaxTableLength = (UINT16) (1U << TableBits); > > - > > - for (Char = 0; Char < NumOfChar; Char++) { > > - > > - Len = BitLen[Char]; > > - if (Len == 0 || Len >= 17) { > > - continue; > > - } > > - > > - NextCode = (UINT16) (Start[Len] + Weight[Len]); > > - > > - if (Len <= TableBits) { > > - > > - for (Index = Start[Len]; Index < NextCode; Index++) { > > - if (Index >= MaxTableLength) { > > - return (UINT16) BAD_TABLE; > > - } > > - Table[Index] = Char; > > - } > > - > > - } else { > > - > > - Index3 = Start[Len]; > > - Pointer = &Table[Index3 >> JuBits]; > > - Index = (UINT16) (Len - TableBits); > > - > > - while (Index != 0) { > > - if (*Pointer == 0 && Avail < (2 * NC - 1)) { > > - Sd->mRight[Avail] = Sd->mLeft[Avail] = 0; > > - *Pointer = Avail++; > > - } > > - > > - if (*Pointer < (2 * NC - 1)) { > > - if ((Index3 & Mask) != 0) { > > - Pointer = &Sd->mRight[*Pointer]; > > - } else { > > - Pointer = &Sd->mLeft[*Pointer]; > > - } > > - } > > - > > - Index3 <<= 1; > > - Index--; > > - } > > - > > - *Pointer = Char; > > - > > - } > > - > > - Start[Len] = NextCode; > > - } > > - // > > - // Succeeds > > - // > > - return 0; > > -} > > - > > -/** > > - Decodes a position value. > > - > > - Get a position value according to Position Huffman Table. > > - > > - @param Sd the global scratch data > > - > > - @return The position value decoded. > > -**/ > > -UINT32 > > -DecodeP ( > > - IN SCRATCH_DATA *Sd > > - ) > > -{ > > - UINT16 Val; > > - UINT32 Mask; > > - UINT32 Pos; > > - > > - Val = Sd->mPTTable[Sd->mBitBuf >> (BITBUFSIZ - 8)]; > > - > > - if (Val >= MAXNP) { > > - Mask = 1U << (BITBUFSIZ - 1 - 8); > > - > > - do { > > - > > - if ((Sd->mBitBuf & Mask) != 0) { > > - Val = Sd->mRight[Val]; > > - } else { > > - Val = Sd->mLeft[Val]; > > - } > > - > > - Mask >>= 1; > > - } while (Val >= MAXNP); > > - } > > - // > > - // Advance what we have read > > - // > > - FillBuf (Sd, Sd->mPTLen[Val]); > > - > > - Pos = Val; > > - if (Val > 1) { > > - Pos = (UINT32) ((1U << (Val - 1)) + GetBits (Sd, (UINT16) (Val - 1))); > > - } > > - > > - return Pos; > > -} > > - > > -/** > > - Reads code lengths for the Extra Set or the Position Set. > > - > > - Read in the Extra Set or Position Set Length Array, then > > - generate the Huffman code mapping for them. > > - > > - @param Sd The global scratch data. > > - @param nn Number of symbols. > > - @param nbit Number of bits needed to represent nn. > > - @param Special The special symbol that needs to be taken care of. > > - > > - @retval 0 OK. > > - @retval BAD_TABLE Table is corrupted. > > - > > -**/ > > -UINT16 > > -ReadPTLen ( > > - IN SCRATCH_DATA *Sd, > > - IN UINT16 nn, > > - IN UINT16 nbit, > > - IN UINT16 Special > > - ) > > -{ > > - UINT16 Number; > > - UINT16 CharC; > > - UINT16 Index; > > - UINT32 Mask; > > - > > - ASSERT (nn <= NPT); > > - // > > - // Read Extra Set Code Length Array size > > - // > > - Number = (UINT16) GetBits (Sd, nbit); > > - > > - if (Number == 0) { > > - // > > - // This represents only Huffman code used > > - // > > - CharC = (UINT16) GetBits (Sd, nbit); > > - > > - for (Index = 0; Index < 256; Index++) { > > - Sd->mPTTable[Index] = CharC; > > - } > > - > > - SetMem (Sd->mPTLen, nn, 0); > > - > > - return 0; > > - } > > - > > - Index = 0; > > - > > - while (Index < Number && Index < NPT) { > > - > > - CharC = (UINT16) (Sd->mBitBuf >> (BITBUFSIZ - 3)); > > - > > - // > > - // If a code length is less than 7, then it is encoded as a 3-bit > > - // value. Or it is encoded as a series of "1"s followed by a > > - // terminating "0". The number of "1"s = Code length - 4. > > - // > > - if (CharC == 7) { > > - Mask = 1U << (BITBUFSIZ - 1 - 3); > > - while (Mask & Sd->mBitBuf) { > > - Mask >>= 1; > > - CharC += 1; > > - } > > - } > > - > > - FillBuf (Sd, (UINT16) ((CharC < 7) ? 3 : CharC - 3)); > > - > > - Sd->mPTLen[Index++] = (UINT8) CharC; > > - > > - // > > - // For Code&Len Set, > > - // After the third length of the code length concatenation, > > - // a 2-bit value is used to indicated the number of consecutive > > - // zero lengths after the third length. > > - // > > - if (Index == Special) { > > - CharC = (UINT16) GetBits (Sd, 2); > > - while ((INT16) (--CharC) >= 0 && Index < NPT) { > > - Sd->mPTLen[Index++] = 0; > > - } > > - } > > - } > > - > > - while (Index < nn && Index < NPT) { > > - Sd->mPTLen[Index++] = 0; > > - } > > - > > - return MakeTable (Sd, nn, Sd->mPTLen, 8, Sd->mPTTable); > > -} > > - > > -/** > > - Reads code lengths for Char&Len Set. > > - > > - Read in and decode the Char&Len Set Code Length Array, then > > - generate the Huffman Code mapping table for the Char&Len Set. > > - > > - @param Sd the global scratch data > > - > > -**/ > > -VOID > > -ReadCLen ( > > - SCRATCH_DATA *Sd > > - ) > > -{ > > - UINT16 Number; > > - UINT16 CharC; > > - UINT16 Index; > > - UINT32 Mask; > > - > > - Number = (UINT16) GetBits (Sd, CBIT); > > - > > - if (Number == 0) { > > - // > > - // This represents only Huffman code used > > - // > > - CharC = (UINT16) GetBits (Sd, CBIT); > > - > > - SetMem (Sd->mCLen, NC, 0); > > - > > - for (Index = 0; Index < 4096; Index++) { > > - Sd->mCTable[Index] = CharC; > > - } > > - > > - return ; > > - } > > - > > - Index = 0; > > - while (Index < Number && Index < NC) { > > - CharC = Sd->mPTTable[Sd->mBitBuf >> (BITBUFSIZ - 8)]; > > - if (CharC >= NT) { > > - Mask = 1U << (BITBUFSIZ - 1 - 8); > > - > > - do { > > - > > - if (Mask & Sd->mBitBuf) { > > - CharC = Sd->mRight[CharC]; > > - } else { > > - CharC = Sd->mLeft[CharC]; > > - } > > - > > - Mask >>= 1; > > - > > - } while (CharC >= NT); > > - } > > - // > > - // Advance what we have read > > - // > > - FillBuf (Sd, Sd->mPTLen[CharC]); > > - > > - if (CharC <= 2) { > > - > > - if (CharC == 0) { > > - CharC = 1; > > - } else if (CharC == 1) { > > - CharC = (UINT16) (GetBits (Sd, 4) + 3); > > - } else if (CharC == 2) { > > - CharC = (UINT16) (GetBits (Sd, CBIT) + 20); > > - } > > - > > - while ((INT16) (--CharC) >= 0 && Index < NC) { > > - Sd->mCLen[Index++] = 0; > > - } > > - > > - } else { > > - > > - Sd->mCLen[Index++] = (UINT8) (CharC - 2); > > - > > - } > > - } > > - > > - SetMem (Sd->mCLen + Index, NC - Index, 0); > > - > > - MakeTable (Sd, NC, Sd->mCLen, 12, Sd->mCTable); > > - > > - return ; > > -} > > - > > -/** > > - Decode a character/length value. > > - > > - Read one value from mBitBuf, Get one code from mBitBuf. If it is at > block boundary, generates > > - Huffman code mapping table for Extra Set, Code&Len Set and > > - Position Set. > > - > > - @param Sd The global scratch data. > > - > > - @return The value decoded. > > - > > -**/ > > -UINT16 > > -DecodeC ( > > - SCRATCH_DATA *Sd > > - ) > > -{ > > - UINT16 Index2; > > - UINT32 Mask; > > - > > - if (Sd->mBlockSize == 0) { > > - // > > - // Starting a new block > > - // Read BlockSize from block header > > - // > > - Sd->mBlockSize = (UINT16) GetBits (Sd, 16); > > - > > - // > > - // Read in the Extra Set Code Length Array, > > - // Generate the Huffman code mapping table for Extra Set. > > - // > > - Sd->mBadTableFlag = ReadPTLen (Sd, NT, TBIT, 3); > > - if (Sd->mBadTableFlag != 0) { > > - return 0; > > - } > > - > > - // > > - // Read in and decode the Char&Len Set Code Length Array, > > - // Generate the Huffman code mapping table for Char&Len Set. > > - // > > - ReadCLen (Sd); > > - > > - // > > - // Read in the Position Set Code Length Array, > > - // Generate the Huffman code mapping table for the Position Set. > > - // > > - Sd->mBadTableFlag = ReadPTLen (Sd, MAXNP, Sd->mPBit, (UINT16) (- > 1)); > > - if (Sd->mBadTableFlag != 0) { > > - return 0; > > - } > > - } > > - > > - // > > - // Get one code according to Code&Set Huffman Table > > - // > > - Sd->mBlockSize--; > > - Index2 = Sd->mCTable[Sd->mBitBuf >> (BITBUFSIZ - 12)]; > > - > > - if (Index2 >= NC) { > > - Mask = 1U << (BITBUFSIZ - 1 - 12); > > - > > - do { > > - if ((Sd->mBitBuf & Mask) != 0) { > > - Index2 = Sd->mRight[Index2]; > > - } else { > > - Index2 = Sd->mLeft[Index2]; > > - } > > - > > - Mask >>= 1; > > - } while (Index2 >= NC); > > - } > > - // > > - // Advance what we have read > > - // > > - FillBuf (Sd, Sd->mCLen[Index2]); > > - > > - return Index2; > > -} > > - > > -/** > > - Decode the source data and put the resulting data into the destination > buffer. > > - > > - @param Sd The global scratch data > > -**/ > > -VOID > > -Decode ( > > - SCRATCH_DATA *Sd > > - ) > > -{ > > - UINT16 BytesRemain; > > - UINT32 DataIdx; > > - UINT16 CharC; > > - > > - BytesRemain = (UINT16) (-1); > > - > > - DataIdx = 0; > > - > > - for (;;) { > > - // > > - // Get one code from mBitBuf > > - // > > - CharC = DecodeC (Sd); > > - if (Sd->mBadTableFlag != 0) { > > - goto Done; > > - } > > - > > - if (CharC < 256) { > > - // > > - // Process an Original character > > - // > > - if (Sd->mOutBuf >= Sd->mOrigSize) { > > - goto Done; > > - } else { > > - // > > - // Write orignal character into mDstBase > > - // > > - Sd->mDstBase[Sd->mOutBuf++] = (UINT8) CharC; > > - } > > - > > - } else { > > - // > > - // Process a Pointer > > - // > > - CharC = (UINT16) (CharC - (BIT8 - THRESHOLD)); > > - > > - // > > - // Get string length > > - // > > - BytesRemain = CharC; > > - > > - // > > - // Locate string position > > - // > > - DataIdx = Sd->mOutBuf - DecodeP (Sd) - 1; > > - > > - // > > - // Write BytesRemain of bytes into mDstBase > > - // > > - BytesRemain--; > > - while ((INT16) (BytesRemain) >= 0) { > > - if (Sd->mOutBuf >= Sd->mOrigSize) { > > - goto Done ; > > - } > > - if (DataIdx >= Sd->mOrigSize) { > > - Sd->mBadTableFlag = (UINT16) BAD_TABLE; > > - goto Done ; > > - } > > - Sd->mDstBase[Sd->mOutBuf++] = Sd->mDstBase[DataIdx++]; > > - > > - BytesRemain--; > > - } > > - // > > - // Once mOutBuf is fully filled, directly return > > - // > > - if (Sd->mOutBuf >= Sd->mOrigSize) { > > - goto Done ; > > - } > > - } > > - } > > - > > -Done: > > - return ; > > -} > > - > > -/** > > - Given a compressed source buffer, this function retrieves the size of > > - the uncompressed buffer and the size of the scratch buffer required > > - to decompress the compressed source buffer. > > - > > - Retrieves the size of the uncompressed buffer and the temporary > scratch buffer > > - required to decompress the buffer specified by Source and SourceSize. > > - If the size of the uncompressed buffer or the size of the scratch buffer > cannot > > - be determined from the compressed data specified by Source and > SourceData, > > - then RETURN_INVALID_PARAMETER is returned. Otherwise, the size of > the uncompressed > > - buffer is returned in DestinationSize, the size of the scratch buffer is > returned > > - in ScratchSize, and RETURN_SUCCESS is returned. > > - This function does not have scratch buffer available to perform a > thorough > > - checking of the validity of the source data. It just retrieves the "Original > Size" > > - field from the beginning bytes of the source data and output it as > DestinationSize. > > - And ScratchSize is specific to the decompression implementation. > > - > > - If Source is NULL, then ASSERT(). > > - If DestinationSize is NULL, then ASSERT(). > > - If ScratchSize is NULL, then ASSERT(). > > - > > - @param Source The source buffer containing the compressed data. > > - @param SourceSize The size, in bytes, of the source buffer. > > - @param DestinationSize A pointer to the size, in bytes, of the > uncompressed buffer > > - that will be generated when the compressed buffer > specified > > - by Source and SourceSize is decompressed.. > > - @param ScratchSize A pointer to the size, in bytes, of the scratch > buffer that > > - is required to decompress the compressed buffer specified > > - by Source and SourceSize. > > - > > - @retval RETURN_SUCCESS The size of the uncompressed data was > returned > > - in DestinationSize and the size of the scratch > > - buffer was returned in ScratchSize. > > - @retval RETURN_INVALID_PARAMETER > > - The size of the uncompressed data or the size of > > - the scratch buffer cannot be determined from > > - the compressed data specified by Source > > - and SourceSize. > > -**/ > > -RETURN_STATUS > > -EFIAPI > > -UefiDecompressGetInfo ( > > - IN CONST VOID *Source, > > - IN UINT32 SourceSize, > > - OUT UINT32 *DestinationSize, > > - OUT UINT32 *ScratchSize > > - ) > > -{ > > - UINT32 CompressedSize; > > - > > - ASSERT (Source != NULL); > > - ASSERT (DestinationSize != NULL); > > - ASSERT (ScratchSize != NULL); > > - > > - if (SourceSize < 8) { > > - return RETURN_INVALID_PARAMETER; > > - } > > - > > - CompressedSize = ReadUnaligned32 ((UINT32 *)Source); > > - if (SourceSize < (CompressedSize + 8) || (CompressedSize + 8) < 8) { > > - return RETURN_INVALID_PARAMETER; > > - } > > - > > - *ScratchSize = sizeof (SCRATCH_DATA); > > - *DestinationSize = ReadUnaligned32 ((UINT32 *)Source + 1); > > - > > - return RETURN_SUCCESS; > > -} > > - > > -/** > > - Decompresses a compressed source buffer by EFI or Tiano algorithm. > > - > > - Extracts decompressed data to its original form. > > - This function is designed so that the decompression algorithm can be > implemented > > - without using any memory services. As a result, this function is not > allowed to > > - call any memory allocation services in its implementation. It is the > caller's > > - responsibility to allocate and free the Destination and Scratch buffers. > > - If the compressed source data specified by Source is successfully > decompressed > > - into Destination, then RETURN_SUCCESS is returned. If the compressed > source data > > - specified by Source is not in a valid compressed data format, > > - then RETURN_INVALID_PARAMETER is returned. > > - > > - If Source is NULL, then ASSERT(). > > - If Destination is NULL, then ASSERT(). > > - If the required scratch buffer size > 0 and Scratch is NULL, then ASSERT(). > > - > > - @param Source The source buffer containing the compressed data. > > - @param Destination The destination buffer to store the decompressed > data > > - @param Scratch A temporary scratch buffer that is used to perform > the decompression. > > - This is an optional parameter that may be NULL if the > > - required scratch buffer size is 0. > > - @param Version 1 for UEFI Decompress algoruthm, 2 for Tiano > Decompess algorithm. > > - > > - @retval RETURN_SUCCESS Decompression completed successfully, and > > - the uncompressed buffer is returned in Destination. > > - @retval RETURN_INVALID_PARAMETER > > - The source buffer specified by Source is corrupted > > - (not in a valid compressed format). > > -**/ > > -RETURN_STATUS > > -EFIAPI > > -UefiTianoDecompress ( > > - IN CONST VOID *Source, > > - IN OUT VOID *Destination, > > - IN OUT VOID *Scratch, > > - IN UINT32 Version > > - ) > > -{ > > - UINT32 CompSize; > > - UINT32 OrigSize; > > - SCRATCH_DATA *Sd; > > - CONST UINT8 *Src; > > - UINT8 *Dst; > > - > > - ASSERT (Source != NULL); > > - ASSERT (Destination != NULL); > > - ASSERT (Scratch != NULL); > > - > > - Src = Source; > > - Dst = Destination; > > - > > - Sd = (SCRATCH_DATA *) Scratch; > > - > > - CompSize = Src[0] + (Src[1] << 8) + (Src[2] << 16) + (Src[3] << 24); > > - OrigSize = Src[4] + (Src[5] << 8) + (Src[6] << 16) + (Src[7] << 24); > > - > > - // > > - // If compressed file size is 0, return > > - // > > - if (OrigSize == 0) { > > - return RETURN_SUCCESS; > > - } > > - > > - Src = Src + 8; > > - > > - SetMem (Sd, sizeof (SCRATCH_DATA), 0); > > - > > - // > > - // The length of the field 'Position Set Code Length Array Size' in Block > Header. > > - // For UEFI 2.0 de/compression algorithm(Version 1), mPBit = 4 > > - // For Tiano de/compression algorithm(Version 2), mPBit = 5 > > - // > > - switch (Version) { > > - case 1 : > > - Sd->mPBit = 4; > > - break; > > - case 2 : > > - Sd->mPBit = 5; > > - break; > > - default: > > - ASSERT (FALSE); > > - } > > - Sd->mSrcBase = (UINT8 *)Src; > > - Sd->mDstBase = Dst; > > - // > > - // CompSize and OrigSize are calculated in bytes > > - // > > - Sd->mCompSize = CompSize; > > - Sd->mOrigSize = OrigSize; > > - > > - // > > - // Fill the first BITBUFSIZ bits > > - // > > - FillBuf (Sd, BITBUFSIZ); > > - > > - // > > - // Decompress it > > - // > > - Decode (Sd); > > - > > - if (Sd->mBadTableFlag != 0) { > > - // > > - // Something wrong with the source > > - // > > - return RETURN_INVALID_PARAMETER; > > - } > > - > > - return RETURN_SUCCESS; > > -} > > - > > -/** > > - Decompresses a UEFI compressed source buffer. > > - > > - Extracts decompressed data to its original form. > > - This function is designed so that the decompression algorithm can be > implemented > > - without using any memory services. As a result, this function is not > allowed to > > - call any memory allocation services in its implementation. It is the > caller's > > - responsibility to allocate and free the Destination and Scratch buffers. > > - If the compressed source data specified by Source is successfully > decompressed > > - into Destination, then RETURN_SUCCESS is returned. If the compressed > source data > > - specified by Source is not in a valid compressed data format, > > - then RETURN_INVALID_PARAMETER is returned. > > - > > - If Source is NULL, then ASSERT(). > > - If Destination is NULL, then ASSERT(). > > - If the required scratch buffer size > 0 and Scratch is NULL, then ASSERT(). > > - > > - @param Source The source buffer containing the compressed data. > > - @param Destination The destination buffer to store the decompressed > data > > - @param Scratch A temporary scratch buffer that is used to perform > the decompression. > > - This is an optional parameter that may be NULL if the > > - required scratch buffer size is 0. > > - > > - @retval RETURN_SUCCESS Decompression completed successfully, and > > - the uncompressed buffer is returned in Destination. > > - @retval RETURN_INVALID_PARAMETER > > - The source buffer specified by Source is corrupted > > - (not in a valid compressed format). > > -**/ > > -RETURN_STATUS > > -EFIAPI > > -UefiDecompress ( > > - IN CONST VOID *Source, > > - IN OUT VOID *Destination, > > - IN OUT VOID *Scratch OPTIONAL > > - ) > > -{ > > - return UefiTianoDecompress (Source, Destination, Scratch, 1); > > -} > > - > > -/** > > - Examines a GUIDed section and returns the size of the decoded buffer > and the > > - size of an optional scratch buffer required to actually decode the data in > a GUIDed section. > > - > > - Examines a GUIDed section specified by InputSection. > > - If GUID for InputSection does not match the GUID that this handler > supports, > > - then RETURN_UNSUPPORTED is returned. > > - If the required information can not be retrieved from InputSection, > > - then RETURN_INVALID_PARAMETER is returned. > > - If the GUID of InputSection does match the GUID that this handler > supports, > > - then the size required to hold the decoded buffer is returned in > OututBufferSize, > > - the size of an optional scratch buffer is returned in ScratchSize, and the > Attributes field > > - from EFI_GUID_DEFINED_SECTION header of InputSection is returned in > SectionAttribute. > > - > > - If InputSection is NULL, then ASSERT(). > > - If OutputBufferSize is NULL, then ASSERT(). > > - If ScratchBufferSize is NULL, then ASSERT(). > > - If SectionAttribute is NULL, then ASSERT(). > > - > > - > > - @param[in] InputSection A pointer to a GUIDed section of an FFS > formatted file. > > - @param[out] OutputBufferSize A pointer to the size, in bytes, of an > output buffer required > > - if the buffer specified by InputSection were decoded. > > - @param[out] ScratchBufferSize A pointer to the size, in bytes, required > as scratch space > > - if the buffer specified by InputSection were decoded. > > - @param[out] SectionAttribute A pointer to the attributes of the > GUIDed section. See the Attributes > > - field of EFI_GUID_DEFINED_SECTION in the PI > Specification. > > - > > - @retval RETURN_SUCCESS The information about InputSection > was returned. > > - @retval RETURN_UNSUPPORTED The section specified by > InputSection does not match the GUID this handler supports. > > - @retval RETURN_INVALID_PARAMETER The information can not be > retrieved from the section specified by InputSection. > > - > > -**/ > > -RETURN_STATUS > > -EFIAPI > > -TianoDecompressGetInfo ( > > - IN CONST VOID *InputSection, > > - OUT UINT32 *OutputBufferSize, > > - OUT UINT32 *ScratchBufferSize, > > - OUT UINT16 *SectionAttribute > > - ) > > - > > -{ > > - ASSERT (SectionAttribute != NULL); > > - > > - if (InputSection == NULL) { > > - return RETURN_INVALID_PARAMETER; > > - } > > - > > - if (IS_SECTION2 (InputSection)) { > > - if (!CompareGuid ( > > - &gTianoCustomDecompressGuid, > > - &(((EFI_GUID_DEFINED_SECTION2 *) InputSection)- > >SectionDefinitionGuid))) { > > - return RETURN_INVALID_PARAMETER; > > - } > > - // > > - // Get guid attribute of guid section. > > - // > > - *SectionAttribute = ((EFI_GUID_DEFINED_SECTION2 *) InputSection)- > >Attributes; > > - > > - // > > - // Call Tiano GetInfo to get the required size info. > > - // > > - return UefiDecompressGetInfo ( > > - (UINT8 *) InputSection + ((EFI_GUID_DEFINED_SECTION2 *) > InputSection)->DataOffset, > > - SECTION2_SIZE (InputSection) - ((EFI_GUID_DEFINED_SECTION2 *) > InputSection)->DataOffset, > > - OutputBufferSize, > > - ScratchBufferSize > > - ); > > - } else { > > - if (!CompareGuid ( > > - &gTianoCustomDecompressGuid, > > - &(((EFI_GUID_DEFINED_SECTION *) InputSection)- > >SectionDefinitionGuid))) { > > - return RETURN_INVALID_PARAMETER; > > - } > > - // > > - // Get guid attribute of guid section. > > - // > > - *SectionAttribute = ((EFI_GUID_DEFINED_SECTION *) InputSection)- > >Attributes; > > - > > - // > > - // Call Tiano GetInfo to get the required size info. > > - // > > - return UefiDecompressGetInfo ( > > - (UINT8 *) InputSection + ((EFI_GUID_DEFINED_SECTION *) > InputSection)->DataOffset, > > - SECTION_SIZE (InputSection) - ((EFI_GUID_DEFINED_SECTION *) > InputSection)->DataOffset, > > - OutputBufferSize, > > - ScratchBufferSize > > - ); > > - } > > -} > > - > > -/** > > - Decompress a Tiano compressed GUIDed section into a caller allocated > output buffer. > > - > > - Decodes the GUIDed section specified by InputSection. > > - If GUID for InputSection does not match the GUID that this handler > supports, then RETURN_UNSUPPORTED is returned. > > - If the data in InputSection can not be decoded, then > RETURN_INVALID_PARAMETER is returned. > > - If the GUID of InputSection does match the GUID that this handler > supports, then InputSection > > - is decoded into the buffer specified by OutputBuffer and the > authentication status of this > > - decode operation is returned in AuthenticationStatus. If the decoded > buffer is identical to the > > - data in InputSection, then OutputBuffer is set to point at the data in > InputSection. Otherwise, > > - the decoded data will be placed in caller allocated buffer specified by > OutputBuffer. > > - > > - If InputSection is NULL, then ASSERT(). > > - If OutputBuffer is NULL, then ASSERT(). > > - If ScratchBuffer is NULL and this decode operation requires a scratch > buffer, then ASSERT(). > > - If AuthenticationStatus is NULL, then ASSERT(). > > - > > - > > - @param[in] InputSection A pointer to a GUIDed section of an FFS > formatted file. > > - @param[out] OutputBuffer A pointer to a buffer that contains the > result of a decode operation. > > - @param[in] ScratchBuffer A caller allocated buffer that may be required > by this function > > - as a scratch buffer to perform the decode operation. > > - @param[out] AuthenticationStatus > > - A pointer to the authentication status of the decoded > output buffer. > > - See the definition of authentication status in the > EFI_PEI_GUIDED_SECTION_EXTRACTION_PPI > > - section of the PI Specification. > EFI_AUTH_STATUS_PLATFORM_OVERRIDE must > > - never be set by this handler. > > - > > - @retval RETURN_SUCCESS The buffer specified by InputSection > was decoded. > > - @retval RETURN_UNSUPPORTED The section specified by > InputSection does not match the GUID this handler supports. > > - @retval RETURN_INVALID_PARAMETER The section specified by > InputSection can not be decoded. > > - > > -**/ > > -RETURN_STATUS > > -EFIAPI > > -TianoDecompress ( > > - IN CONST VOID *InputSection, > > - OUT VOID **OutputBuffer, > > - IN VOID *ScratchBuffer, OPTIONAL > > - OUT UINT32 *AuthenticationStatus > > - ) > > -{ > > - ASSERT (OutputBuffer != NULL); > > - ASSERT (InputSection != NULL); > > - > > - if (IS_SECTION2 (InputSection)) { > > - if (!CompareGuid ( > > - &gTianoCustomDecompressGuid, > > - &(((EFI_GUID_DEFINED_SECTION2 *) InputSection)- > >SectionDefinitionGuid))) { > > - return RETURN_INVALID_PARAMETER; > > - } > > - > > - // > > - // Set Authentication to Zero. > > - // > > - *AuthenticationStatus = 0; > > - > > - // > > - // Call Tiano Decompress to get the raw data > > - // > > - return UefiTianoDecompress ( > > - (UINT8 *) InputSection + ((EFI_GUID_DEFINED_SECTION2 *) > InputSection)->DataOffset, > > - *OutputBuffer, > > - ScratchBuffer, > > - 2 > > - ); > > - } else { > > - if (!CompareGuid ( > > - &gTianoCustomDecompressGuid, > > - &(((EFI_GUID_DEFINED_SECTION *) InputSection)- > >SectionDefinitionGuid))) { > > - return RETURN_INVALID_PARAMETER; > > - } > > - > > - // > > - // Set Authentication to Zero. > > - // > > - *AuthenticationStatus = 0; > > - > > - // > > - // Call Tiano Decompress to get the raw data > > - // > > - return UefiTianoDecompress ( > > - (UINT8 *) InputSection + ((EFI_GUID_DEFINED_SECTION *) > InputSection)->DataOffset, > > - *OutputBuffer, > > - ScratchBuffer, > > - 2 > > - ); > > - } > > -} > > - > > -/** > > - Registers TianoDecompress and TianoDecompressGetInfo handlers with > TianoCustomerDecompressGuid > > - > > - @retval RETURN_SUCCESS Register successfully. > > - @retval RETURN_OUT_OF_RESOURCES No enough memory to store > this handler. > > -**/ > > -RETURN_STATUS > > -EFIAPI > > -TianoDecompressLibConstructor ( > > - VOID > > -) > > -{ > > - return ExtractGuidedSectionRegisterHandlers ( > > - &gTianoCustomDecompressGuid, > > - TianoDecompressGetInfo, > > - TianoDecompress > > - ); > > -} > > diff --git > a/MdeModulePkg/Library/BaseUefiTianoCustomDecompressLib/BaseUefiTi > anoCustomDecompressLibInternals.h > b/MdeModulePkg/Library/BaseUefiTianoCustomDecompressLib/BaseUefiTi > anoCustomDecompressLibInternals.h > > deleted file mode 100644 > > index 846abdb78e..0000000000 > > --- > a/MdeModulePkg/Library/BaseUefiTianoCustomDecompressLib/BaseUefiTi > anoCustomDecompressLibInternals.h > > +++ /dev/null > > @@ -1,214 +0,0 @@ > > -/** @file > > - Internal data structure and interfaces defintions for UEFI and Tiano > Decompress Library. > > - > > - Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR> > > - SPDX-License-Identifier: BSD-2-Clause-Patent > > - > > -**/ > > - > > -#ifndef > __BASE_UEFI_TIANO_CUSTOM_DECOMPRESS_LIB_INTERNALS_H__ > > -#define > __BASE_UEFI_TIANO_CUSTOM_DECOMPRESS_LIB_INTERNALS_H__ > > - > > -#include <PiPei.h> > > - > > -#include <Guid/TianoDecompress.h> > > -#include <Library/BaseLib.h> > > -#include <Library/UefiDecompressLib.h> > > -#include <Library/DebugLib.h> > > -#include <Library/BaseMemoryLib.h> > > -#include <Library/ExtractGuidedSectionLib.h> > > - > > -// > > -// Decompression algorithm begins here > > -// > > -#define BITBUFSIZ 32 > > -#define MAXMATCH 256 > > -#define THRESHOLD 3 > > -#define CODE_BIT 16 > > -#define BAD_TABLE - 1 > > - > > -// > > -// C: Char&Len Set; P: Position Set; T: exTra Set > > -// > > -#define NC (0xff + MAXMATCH + 2 - THRESHOLD) > > -#define CBIT 9 > > -#define MAXPBIT 5 > > -#define TBIT 5 > > -#define MAXNP ((1U << MAXPBIT) - 1) > > -#define NT (CODE_BIT + 3) > > -#if NT > MAXNP > > -#define NPT NT > > -#else > > -#define NPT MAXNP > > -#endif > > - > > -typedef struct { > > - UINT8 *mSrcBase; // Starting address of compressed data > > - UINT8 *mDstBase; // Starting address of decompressed data > > - UINT32 mOutBuf; > > - UINT32 mInBuf; > > - > > - UINT16 mBitCount; > > - UINT32 mBitBuf; > > - UINT32 mSubBitBuf; > > - UINT16 mBlockSize; > > - UINT32 mCompSize; > > - UINT32 mOrigSize; > > - > > - UINT16 mBadTableFlag; > > - > > - UINT16 mLeft[2 * NC - 1]; > > - UINT16 mRight[2 * NC - 1]; > > - UINT8 mCLen[NC]; > > - UINT8 mPTLen[NPT]; > > - UINT16 mCTable[4096]; > > - UINT16 mPTTable[256]; > > - > > - /// > > - /// The length of the field 'Position Set Code Length Array Size' in Block > Header. > > - /// For UEFI 2.0 de/compression algorithm, mPBit = 4 > > - /// For Tiano de/compression algorithm, mPBit = 5 > > - /// > > - UINT8 mPBit; > > -} SCRATCH_DATA; > > - > > -/** > > - Read NumOfBit of bits from source into mBitBuf. > > - > > - Shift mBitBuf NumOfBits left. Read in NumOfBits of bits from source. > > - > > - @param Sd The global scratch data > > - @param NumOfBits The number of bits to shift and read. > > - > > -**/ > > -VOID > > -FillBuf ( > > - IN SCRATCH_DATA *Sd, > > - IN UINT16 NumOfBits > > - ); > > - > > -/** > > - Get NumOfBits of bits out from mBitBuf. > > - > > - Get NumOfBits of bits out from mBitBuf. Fill mBitBuf with subsequent > > - NumOfBits of bits from source. Returns NumOfBits of bits that are > > - popped out. > > - > > - @param Sd The global scratch data. > > - @param NumOfBits The number of bits to pop and read. > > - > > - @return The bits that are popped out. > > - > > -**/ > > -UINT32 > > -GetBits ( > > - IN SCRATCH_DATA *Sd, > > - IN UINT16 NumOfBits > > - ); > > - > > -/** > > - Creates Huffman Code mapping table according to code length array. > > - > > - Creates Huffman Code mapping table for Extra Set, Char&Len Set > > - and Position Set according to code length array. > > - > > - @param Sd The global scratch data > > - @param NumOfChar Number of symbols in the symbol set > > - @param BitLen Code length array > > - @param TableBits The width of the mapping table > > - @param Table The table to be created. > > - > > - @retval 0 OK. > > - @retval BAD_TABLE The table is corrupted. > > - > > -**/ > > -UINT16 > > -MakeTable ( > > - IN SCRATCH_DATA *Sd, > > - IN UINT16 NumOfChar, > > - IN UINT8 *BitLen, > > - IN UINT16 TableBits, > > - OUT UINT16 *Table > > - ); > > - > > -/** > > - Decodes a position value. > > - > > - Get a position value according to Position Huffman Table. > > - > > - @param Sd the global scratch data > > - > > - @return The position value decoded. > > - > > -**/ > > -UINT32 > > -DecodeP ( > > - IN SCRATCH_DATA *Sd > > - ); > > - > > -/** > > - Reads code lengths for the Extra Set or the Position Set. > > - > > - Read in the Extra Set or Position Set Length Array, then > > - generate the Huffman code mapping for them. > > - > > - @param Sd The global scratch data. > > - @param nn Number of symbols. > > - @param nbit Number of bits needed to represent nn. > > - @param Special The special symbol that needs to be taken care of. > > - > > - @retval 0 OK. > > - @retval BAD_TABLE Table is corrupted. > > - > > -**/ > > -UINT16 > > -ReadPTLen ( > > - IN SCRATCH_DATA *Sd, > > - IN UINT16 nn, > > - IN UINT16 nbit, > > - IN UINT16 Special > > - ); > > - > > -/** > > - Reads code lengths for Char&Len Set. > > - > > - Read in and decode the Char&Len Set Code Length Array, then > > - generate the Huffman Code mapping table for the Char&Len Set. > > - > > - @param Sd the global scratch data > > - > > -**/ > > -VOID > > -ReadCLen ( > > - SCRATCH_DATA *Sd > > - ); > > - > > -/** > > - Decode a character/length value. > > - > > - Read one value from mBitBuf, Get one code from mBitBuf. If it is at > block boundary, generates > > - Huffman code mapping table for Extra Set, Code&Len Set and > > - Position Set. > > - > > - @param Sd The global scratch data. > > - > > - @return The value decoded. > > - > > -**/ > > -UINT16 > > -DecodeC ( > > - SCRATCH_DATA *Sd > > - ); > > - > > -/** > > - Decode the source data and put the resulting data into the destination > buffer. > > - > > - @param Sd The global scratch data > > - > > -**/ > > -VOID > > -Decode ( > > - SCRATCH_DATA *Sd > > - ); > > - > > -#endif > > diff --git > a/MdeModulePkg/Library/BaseUefiTianoCustomDecompressLib/BaseUefiTi > anoDecompressLib.uni > b/MdeModulePkg/Library/BaseUefiTianoCustomDecompressLib/BaseUefiTi > anoDecompressLib.uni > > deleted file mode 100644 > > index c384dacbef..0000000000 > > --- > a/MdeModulePkg/Library/BaseUefiTianoCustomDecompressLib/BaseUefiTi > anoDecompressLib.uni > > +++ /dev/null > > @@ -1,16 +0,0 @@ > > -// /** @file > > -// This library instance produces UefiDecompressLib and Tiano Custom > decompression algorithm. > > -// > > -// Tiano custom decompression algorithm shares most of code with Uefi > Decompress algorithm. > > -// > > -// Copyright (c) 2006 - 2014, Intel Corporation. All rights reserved.<BR> > > -// > > -// SPDX-License-Identifier: BSD-2-Clause-Patent > > -// > > -// **/ > > - > > - > > -#string STR_MODULE_ABSTRACT #language en-US "Produces > UefiDecompressLib and Tiano Custom decompression algorithm" > > - > > -#string STR_MODULE_DESCRIPTION #language en-US "Tiano custom > decompression algorithm shares most of the code with the UEFI > Decompress algorithm." > > - > > diff --git a/MdeModulePkg/MdeModulePkg.dec > b/MdeModulePkg/MdeModulePkg.dec > > index be84916cc0..1261f80537 100644 > > --- a/MdeModulePkg/MdeModulePkg.dec > > +++ b/MdeModulePkg/MdeModulePkg.dec > > @@ -371,14 +371,10 @@ > > ## GUID indicates the LZMA custom compress/decompress algorithm. > > # Include/Guid/LzmaDecompress.h > > gLzmaCustomDecompressGuid = { 0xEE4E5898, 0x3914, 0x4259, > { 0x9D, 0x6E, 0xDC, 0x7B, 0xD7, 0x94, 0x03, 0xCF }} > > gLzmaF86CustomDecompressGuid = { 0xD42AE6BD, 0x1352, 0x4bfb, > { 0x90, 0x9A, 0xCA, 0x72, 0xA6, 0xEA, 0xE8, 0x89 }} > > > > - ## GUID indicates the tiano custom compress/decompress algorithm. > > - # Include/Guid/TianoDecompress.h > > - gTianoCustomDecompressGuid = { 0xA31280AD, 0x481E, 0x41B6, > { 0x95, 0xE8, 0x12, 0x7F, 0x4C, 0x98, 0x47, 0x79 }} > > - > > ## Include/Guid/TtyTerm.h > > gEfiTtyTermGuid = { 0x7d916d80, 0x5bb1, 0x458c, {0xa4, 0x8f, > 0xe2, 0x5f, 0xdd, 0x51, 0xef, 0x94 }} > > > > ## Include/Guid/HiiBootMaintenanceFormset.h > > gEfiIfrBootMaintenanceGuid = { 0xb2dedc91, 0xd59f, 0x48d2, { 0x89, > 0x8a, 0x12, 0x49, 0xc, 0x74, 0xa4, 0xe0 }} > > diff --git a/MdeModulePkg/MdeModulePkg.dsc > b/MdeModulePkg/MdeModulePkg.dsc > > index b302f4a4f3..0da28e74c2 100644 > > --- a/MdeModulePkg/MdeModulePkg.dsc > > +++ b/MdeModulePkg/MdeModulePkg.dsc > > @@ -311,11 +311,10 @@ > > MdeModulePkg/Library/FrameBufferBltLib/FrameBufferBltLib.inf > > > MdeModulePkg/Library/NonDiscoverableDeviceRegistrationLib/NonDiscove > rableDeviceRegistrationLib.inf > > MdeModulePkg/Library/BaseBmpSupportLib/BaseBmpSupportLib.inf > > > MdeModulePkg/Library/DisplayUpdateProgressLibGraphics/DisplayUpdate > ProgressLibGraphics.inf > > > MdeModulePkg/Library/DisplayUpdateProgressLibText/DisplayUpdateProgr > essLibText.inf > > - > MdeModulePkg/Library/BaseUefiTianoCustomDecompressLib/BaseUefiTian > oCustomDecompressLib.inf > > > > MdeModulePkg/Universal/BdsDxe/BdsDxe.inf > > > MdeModulePkg/Application/BootManagerMenuApp/BootManagerMenuA > pp.inf > > MdeModulePkg/Application/UiApp/UiApp.inf{ > > <LibraryClasses> > > diff --git > a/MdeModulePkg/Library/BaseUefiTianoCustomDecompressLib/BaseUefiTi > anoCustomDecompressLib.inf > b/MdePkg/Library/BaseUefiDecompressLib/BaseTianoCustomDecompressLi > b.inf > > similarity index 88% > > rename from > MdeModulePkg/Library/BaseUefiTianoCustomDecompressLib/BaseUefiTian > oCustomDecompressLib.inf > > rename to > MdePkg/Library/BaseUefiDecompressLib/BaseTianoCustomDecompressLib.i > nf > > index c9c19d6d3c..5d2b54e2db 100644 > > --- > a/MdeModulePkg/Library/BaseUefiTianoCustomDecompressLib/BaseUefiTi > anoCustomDecompressLib.inf > > +++ > b/MdePkg/Library/BaseUefiDecompressLib/BaseTianoCustomDecompressLi > b.inf > > @@ -23,16 +23,15 @@ > > # > > # VALID_ARCHITECTURES = IA32 X64 EBC > > # > > > > [Sources] > > - BaseUefiTianoCustomDecompressLibInternals.h > > - BaseUefiTianoCustomDecompressLib.c > > + BaseUefiDecompressLibInternals.h > > + BaseUefiDecompressLib.c > > > > [Packages] > > MdePkg/MdePkg.dec > > - MdeModulePkg/MdeModulePkg.dec > > > > [LibraryClasses] > > BaseLib > > DebugLib > > BaseMemoryLib > > diff --git > a/MdePkg/Library/BaseUefiDecompressLib/BaseUefiDecompressLib.c > b/MdePkg/Library/BaseUefiDecompressLib/BaseUefiDecompressLib.c > > index 8e502b0fdb..c390363d14 100644 > > --- a/MdePkg/Library/BaseUefiDecompressLib/BaseUefiDecompressLib.c > > +++ b/MdePkg/Library/BaseUefiDecompressLib/BaseUefiDecompressLib.c > > @@ -5,16 +5,17 @@ > > Portions copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR> > > SPDX-License-Identifier: BSD-2-Clause-Patent > > > > **/ > > > > - > > +#include <PiPei.h> > > #include <Base.h> > > #include <Library/BaseLib.h> > > #include <Library/DebugLib.h> > > #include <Library/BaseMemoryLib.h> > > #include <Library/UefiDecompressLib.h> > > +#include <Library/ExtractGuidedSectionLib.h> > > > > #include "BaseUefiDecompressLibInternals.h" > > > > /** > > Read NumOfBit of bits from source into mBitBuf. > > @@ -747,14 +748,15 @@ UefiDecompressGetInfo ( > > The source buffer specified by Source is corrupted > > (not in a valid compressed format). > > **/ > > RETURN_STATUS > > EFIAPI > > -UefiDecompress ( > > +UefiTianoDecompress ( > > IN CONST VOID *Source, > > IN OUT VOID *Destination, > > - IN OUT VOID *Scratch OPTIONAL > > + IN OUT VOID *Scratch, > > + IN UINT32 Version > > ) > > { > > UINT32 CompSize; > > UINT32 OrigSize; > > SCRATCH_DATA *Sd; > > @@ -784,12 +786,22 @@ UefiDecompress ( > > SetMem (Sd, sizeof (SCRATCH_DATA), 0); > > > > // > > // The length of the field 'Position Set Code Length Array Size' in Block > Header. > > // For UEFI 2.0 de/compression algorithm(Version 1), mPBit = 4 > > + // For Tiano de/compression algorithm(Version 2), mPBit = 5 > > // > > - Sd->mPBit = 4; > > + switch (Version) { > > + case 1 : > > + Sd->mPBit = 4; > > + break; > > + case 2 : > > + Sd->mPBit = 5; > > + break; > > + default: > > + ASSERT (FALSE); > > + } > > Sd->mSrcBase = (UINT8 *)Src; > > Sd->mDstBase = Dst; > > // > > // CompSize and OrigSize are calculated in bytes > > // > > @@ -813,5 +825,246 @@ UefiDecompress ( > > return RETURN_INVALID_PARAMETER; > > } > > > > return RETURN_SUCCESS; > > } > > + > > +/** > > + Decompresses a UEFI compressed source buffer. > > + > > + Extracts decompressed data to its original form. > > + This function is designed so that the decompression algorithm can be > implemented > > + without using any memory services. As a result, this function is not > allowed to > > + call any memory allocation services in its implementation. It is the > caller's > > + responsibility to allocate and free the Destination and Scratch buffers. > > + If the compressed source data specified by Source is successfully > decompressed > > + into Destination, then RETURN_SUCCESS is returned. If the compressed > source data > > + specified by Source is not in a valid compressed data format, > > + then RETURN_INVALID_PARAMETER is returned. > > + > > + If Source is NULL, then ASSERT(). > > + If Destination is NULL, then ASSERT(). > > + If the required scratch buffer size > 0 and Scratch is NULL, then > ASSERT(). > > + > > + @param Source The source buffer containing the compressed data. > > + @param Destination The destination buffer to store the decompressed > data > > + @param Scratch A temporary scratch buffer that is used to perform > the decompression. > > + This is an optional parameter that may be NULL if the > > + required scratch buffer size is 0. > > + > > + @retval RETURN_SUCCESS Decompression completed successfully, and > > + the uncompressed buffer is returned in Destination. > > + @retval RETURN_INVALID_PARAMETER > > + The source buffer specified by Source is corrupted > > + (not in a valid compressed format). > > +**/ > > +RETURN_STATUS > > +EFIAPI > > +UefiDecompress ( > > + IN CONST VOID *Source, > > + IN OUT VOID *Destination, > > + IN OUT VOID *Scratch OPTIONAL > > + ) > > +{ > > + return UefiTianoDecompress (Source, Destination, Scratch, 1); > > +} > > + > > +/** > > + Examines a GUIDed section and returns the size of the decoded buffer > and the > > + size of an optional scratch buffer required to actually decode the data > in a GUIDed section. > > + > > + Examines a GUIDed section specified by InputSection. > > + If GUID for InputSection does not match the GUID that this handler > supports, > > + then RETURN_UNSUPPORTED is returned. > > + If the required information can not be retrieved from InputSection, > > + then RETURN_INVALID_PARAMETER is returned. > > + If the GUID of InputSection does match the GUID that this handler > supports, > > + then the size required to hold the decoded buffer is returned in > OututBufferSize, > > + the size of an optional scratch buffer is returned in ScratchSize, and the > Attributes field > > + from EFI_GUID_DEFINED_SECTION header of InputSection is returned in > SectionAttribute. > > + > > + If InputSection is NULL, then ASSERT(). > > + If OutputBufferSize is NULL, then ASSERT(). > > + If ScratchBufferSize is NULL, then ASSERT(). > > + If SectionAttribute is NULL, then ASSERT(). > > + > > + > > + @param[in] InputSection A pointer to a GUIDed section of an FFS > formatted file. > > + @param[out] OutputBufferSize A pointer to the size, in bytes, of an > output buffer required > > + if the buffer specified by InputSection were decoded. > > + @param[out] ScratchBufferSize A pointer to the size, in bytes, required > as scratch space > > + if the buffer specified by InputSection were decoded. > > + @param[out] SectionAttribute A pointer to the attributes of the > GUIDed section. See the Attributes > > + field of EFI_GUID_DEFINED_SECTION in the PI > Specification. > > + > > + @retval RETURN_SUCCESS The information about InputSection > was returned. > > + @retval RETURN_UNSUPPORTED The section specified by > InputSection does not match the GUID this handler supports. > > + @retval RETURN_INVALID_PARAMETER The information can not be > retrieved from the section specified by InputSection. > > + > > +**/ > > +RETURN_STATUS > > +EFIAPI > > +TianoDecompressGetInfo ( > > + IN CONST VOID *InputSection, > > + OUT UINT32 *OutputBufferSize, > > + OUT UINT32 *ScratchBufferSize, > > + OUT UINT16 *SectionAttribute > > + ) > > + > > +{ > > + ASSERT (SectionAttribute != NULL); > > + > > + if (InputSection == NULL) { > > + return RETURN_INVALID_PARAMETER; > > + } > > + > > + if (IS_SECTION2 (InputSection)) { > > + if (!CompareGuid ( > > + &gTianoCustomDecompressGuid, > > + &(((EFI_GUID_DEFINED_SECTION2 *) InputSection)- > >SectionDefinitionGuid))) { > > + return RETURN_INVALID_PARAMETER; > > + } > > + // > > + // Get guid attribute of guid section. > > + // > > + *SectionAttribute = ((EFI_GUID_DEFINED_SECTION2 *) InputSection)- > >Attributes; > > + > > + // > > + // Call Tiano GetInfo to get the required size info. > > + // > > + return UefiDecompressGetInfo ( > > + (UINT8 *) InputSection + ((EFI_GUID_DEFINED_SECTION2 *) > InputSection)->DataOffset, > > + SECTION2_SIZE (InputSection) - ((EFI_GUID_DEFINED_SECTION2 *) > InputSection)->DataOffset, > > + OutputBufferSize, > > + ScratchBufferSize > > + ); > > + } else { > > + if (!CompareGuid ( > > + &gTianoCustomDecompressGuid, > > + &(((EFI_GUID_DEFINED_SECTION *) InputSection)- > >SectionDefinitionGuid))) { > > + return RETURN_INVALID_PARAMETER; > > + } > > + // > > + // Get guid attribute of guid section. > > + // > > + *SectionAttribute = ((EFI_GUID_DEFINED_SECTION *) InputSection)- > >Attributes; > > + > > + // > > + // Call Tiano GetInfo to get the required size info. > > + // > > + return UefiDecompressGetInfo ( > > + (UINT8 *) InputSection + ((EFI_GUID_DEFINED_SECTION *) > InputSection)->DataOffset, > > + SECTION_SIZE (InputSection) - ((EFI_GUID_DEFINED_SECTION *) > InputSection)->DataOffset, > > + OutputBufferSize, > > + ScratchBufferSize > > + ); > > + } > > +} > > + > > +/** > > + Decompress a Tiano compressed GUIDed section into a caller allocated > output buffer. > > + > > + Decodes the GUIDed section specified by InputSection. > > + If GUID for InputSection does not match the GUID that this handler > supports, then RETURN_UNSUPPORTED is returned. > > + If the data in InputSection can not be decoded, then > RETURN_INVALID_PARAMETER is returned. > > + If the GUID of InputSection does match the GUID that this handler > supports, then InputSection > > + is decoded into the buffer specified by OutputBuffer and the > authentication status of this > > + decode operation is returned in AuthenticationStatus. If the decoded > buffer is identical to the > > + data in InputSection, then OutputBuffer is set to point at the data in > InputSection. Otherwise, > > + the decoded data will be placed in caller allocated buffer specified by > OutputBuffer. > > + > > + If InputSection is NULL, then ASSERT(). > > + If OutputBuffer is NULL, then ASSERT(). > > + If ScratchBuffer is NULL and this decode operation requires a scratch > buffer, then ASSERT(). > > + If AuthenticationStatus is NULL, then ASSERT(). > > + > > + > > + @param[in] InputSection A pointer to a GUIDed section of an FFS > formatted file. > > + @param[out] OutputBuffer A pointer to a buffer that contains the > result of a decode operation. > > + @param[in] ScratchBuffer A caller allocated buffer that may be > required by this function > > + as a scratch buffer to perform the decode operation. > > + @param[out] AuthenticationStatus > > + A pointer to the authentication status of the decoded > output buffer. > > + See the definition of authentication status in the > EFI_PEI_GUIDED_SECTION_EXTRACTION_PPI > > + section of the PI Specification. > EFI_AUTH_STATUS_PLATFORM_OVERRIDE must > > + never be set by this handler. > > + > > + @retval RETURN_SUCCESS The buffer specified by InputSection > was decoded. > > + @retval RETURN_UNSUPPORTED The section specified by > InputSection does not match the GUID this handler supports. > > + @retval RETURN_INVALID_PARAMETER The section specified by > InputSection can not be decoded. > > + > > +**/ > > +RETURN_STATUS > > +EFIAPI > > +TianoDecompress ( > > + IN CONST VOID *InputSection, > > + OUT VOID **OutputBuffer, > > + IN VOID *ScratchBuffer, OPTIONAL > > + OUT UINT32 *AuthenticationStatus > > + ) > > +{ > > + ASSERT (OutputBuffer != NULL); > > + ASSERT (InputSection != NULL); > > + > > + if (IS_SECTION2 (InputSection)) { > > + if (!CompareGuid ( > > + &gTianoCustomDecompressGuid, > > + &(((EFI_GUID_DEFINED_SECTION2 *) InputSection)- > >SectionDefinitionGuid))) { > > + return RETURN_INVALID_PARAMETER; > > + } > > + > > + // > > + // Set Authentication to Zero. > > + // > > + *AuthenticationStatus = 0; > > + > > + // > > + // Call Tiano Decompress to get the raw data > > + // > > + return UefiTianoDecompress ( > > + (UINT8 *) InputSection + ((EFI_GUID_DEFINED_SECTION2 *) > InputSection)->DataOffset, > > + *OutputBuffer, > > + ScratchBuffer, > > + 2 > > + ); > > + } else { > > + if (!CompareGuid ( > > + &gTianoCustomDecompressGuid, > > + &(((EFI_GUID_DEFINED_SECTION *) InputSection)- > >SectionDefinitionGuid))) { > > + return RETURN_INVALID_PARAMETER; > > + } > > + > > + // > > + // Set Authentication to Zero. > > + // > > + *AuthenticationStatus = 0; > > + > > + // > > + // Call Tiano Decompress to get the raw data > > + // > > + return UefiTianoDecompress ( > > + (UINT8 *) InputSection + ((EFI_GUID_DEFINED_SECTION *) > InputSection)->DataOffset, > > + *OutputBuffer, > > + ScratchBuffer, > > + 2 > > + ); > > + } > > +} > > + > > +/** > > + Registers TianoDecompress and TianoDecompressGetInfo handlers with > TianoCustomerDecompressGuid > > + > > + @retval RETURN_SUCCESS Register successfully. > > + @retval RETURN_OUT_OF_RESOURCES No enough memory to store > this handler. > > +**/ > > +RETURN_STATUS > > +EFIAPI > > +TianoDecompressLibConstructor ( > > + VOID > > +) > > +{ > > + return ExtractGuidedSectionRegisterHandlers ( > > + &gTianoCustomDecompressGuid, > > + TianoDecompressGetInfo, > > + TianoDecompress > > + ); > > +} > > diff --git > a/MdePkg/Library/BaseUefiDecompressLib/BaseUefiDecompressLib.inf > b/MdePkg/Library/BaseUefiDecompressLib/BaseUefiDecompressLib.inf > > index 356c39a4fe..b25680adc5 100644 > > --- a/MdePkg/Library/BaseUefiDecompressLib/BaseUefiDecompressLib.inf > > +++ > b/MdePkg/Library/BaseUefiDecompressLib/BaseUefiDecompressLib.inf > > @@ -34,5 +34,7 @@ > > [LibraryClasses] > > BaseLib > > DebugLib > > BaseMemoryLib > > > > +[Guids] > > + gTianoCustomDecompressGuid ## PRODUCES ## UNDEFINED # > specifies tiano custom decompress algorithm. > > diff --git > a/MdePkg/Library/BaseUefiDecompressLib/BaseUefiDecompressLib.uni > b/MdePkg/Library/BaseUefiDecompressLib/BaseUefiDecompressLib.uni > > index 1cec6bd965..25f379d047 100644 > > --- a/MdePkg/Library/BaseUefiDecompressLib/BaseUefiDecompressLib.uni > > +++ > b/MdePkg/Library/BaseUefiDecompressLib/BaseUefiDecompressLib.uni > > @@ -1,16 +1,16 @@ > > // /** @file > > // UEFI Decompress Library implementation. > > // > > // UEFI Decompress Library implementation. > > // > > -// Copyright (c) 2007 - 2014, Intel Corporation. All rights reserved.<BR> > > +// Copyright (c) 2007 - 2019, Intel Corporation. All rights reserved.<BR> > > // > > // SPDX-License-Identifier: BSD-2-Clause-Patent > > // > > // **/ > > > > > > -#string STR_MODULE_ABSTRACT #language en-US "UEFI > Decompress Library implementation" > > +#string STR_MODULE_ABSTRACT #language en-US "UEFI > Decompress Library and Tiano Custom Decompress Library > implementation." > > > > -#string STR_MODULE_DESCRIPTION #language en-US "UEFI > Decompress Library implementation." > > +#string STR_MODULE_DESCRIPTION #language en-US "Tiano > custom decompression algorithm shares most of the code with the UEFI > Decompress algorithm." > > > > diff --git a/MdePkg/MdePkg.dec b/MdePkg/MdePkg.dec > > index e2ea8fff66..4344ea3594 100644 > > --- a/MdePkg/MdePkg.dec > > +++ b/MdePkg/MdePkg.dec > > @@ -759,10 +759,15 @@ > > # GUID defined in Windows UEFI Firmware Update Platform doc > > # > > ## Include/IndustryStandard/WindowsUxCapsule.h > > gWindowsUxCapsuleGuid = { 0x3b8c8162, 0x188c, 0x46a4, { 0xae, > 0xc9, 0xbe, 0x43, 0xf1, 0xd6, 0x56, 0x97}} > > > > + # > > + # GUID indicates the tiano custom compress/decompress algorithm. > > + # > > + gTianoCustomDecompressGuid = { 0xA31280AD, 0x481E, 0x41B6, > { 0x95, 0xE8, 0x12, 0x7F, 0x4C, 0x98, 0x47, 0x79 }} > > + > > [Guids.IA32, Guids.X64] > > ## Include/Guid/Cper.h > > gEfiIa32X64ErrorTypeCacheCheckGuid = { 0xA55701F5, 0xE3EF, 0x43de, > { 0xAC, 0x72, 0x24, 0x9B, 0x57, 0x3F, 0xAD, 0x2C }} > > > > ## Include/Guid/Cper.h > > diff --git a/MdePkg/MdePkg.dsc b/MdePkg/MdePkg.dsc > > index 21743e384c..dbc24a297e 100644 > > --- a/MdePkg/MdePkg.dsc > > +++ b/MdePkg/MdePkg.dsc > > @@ -55,10 +55,11 @@ > > > MdePkg/Library/BaseReportStatusCodeLibNull/BaseReportStatusCodeLibN > ull.inf > > MdePkg/Library/BaseSerialPortLibNull/BaseSerialPortLibNull.inf > > MdePkg/Library/BaseSynchronizationLib/BaseSynchronizationLib.inf > > > MdePkg/Library/BaseTimerLibNullTemplate/BaseTimerLibNullTemplate.inf > > MdePkg/Library/BaseUefiDecompressLib/BaseUefiDecompressLib.inf > > + > MdePkg/Library/BaseUefiDecompressLib/BaseTianoCustomDecompressLib.i > nf > > MdePkg/Library/BaseSmbusLibNull/BaseSmbusLibNull.inf > > MdePkg/Library/BaseSafeIntLib/BaseSafeIntLib.inf > > > > MdePkg/Library/DxeCoreEntryPoint/DxeCoreEntryPoint.inf > > MdePkg/Library/DxeCoreHobLib/DxeCoreHobLib.inf > > -- > > 2.18.0.windows.1 > > > > ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [edk2-devel] [RFC] [patch] Merge MdeModulePkg\BaseTianoCustomDecompressLib into MdePkg\BaseUefiDecompressLib 2019-05-01 23:46 ` [edk2-devel] " Dandan Bi @ 2019-05-02 9:20 ` Leif Lindholm 0 siblings, 0 replies; 5+ messages in thread From: Leif Lindholm @ 2019-05-02 9:20 UTC (permalink / raw) To: Bi, Dandan Cc: devel@edk2.groups.io, Kinney, Michael D, Gao, Liming, Wang, Jian J, Wu, Hao A, Ni, Ray, Sun, Zailiang, Qian, Yi, Ard Biesheuvel On Wed, May 01, 2019 at 11:46:49PM +0000, Bi, Dandan wrote: > > > For the platforms in edk2-platforms repo, I find they don't use the Tiano > > Custom Decompression algorithm actually. > > > So we can update them to use the > > MdePkg/Library/BaseUefiDecompressLib/BaseUefiDecompressLib.inf firstly > > to avoid any > > > imconpatible changes. > > > > That sounds good to me. But can you explain how you determined they > > don't use the algorithm? > > The Tiano Custom Decompression algorithm is registered with TianoCustomDecompress Guid. > TianoCustomDecompress A31280AD-481E-41B6-95E8-127F4C984779 > We can detect whether this Guid is used in fdf file to see whether the Tiano Compression algorithm is used. > For the platforms in edk2-platforms repo, > A31280AD-481E-41B6-95E8-127F4C984779 is used to define the > TIANOCOMPRESSED rule, but this rule is not used. Aaah, got it - thanks! Yes, then I am happy with this change. / Leif ^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [RFC] [patch] Merge MdeModulePkg\BaseTianoCustomDecompressLib into MdePkg\BaseUefiDecompressLib 2019-04-30 8:58 [RFC] [patch] Merge MdeModulePkg\BaseTianoCustomDecompressLib into MdePkg\BaseUefiDecompressLib Dandan Bi 2019-04-30 21:35 ` Leif Lindholm @ 2019-05-05 5:26 ` Liming Gao 1 sibling, 0 replies; 5+ messages in thread From: Liming Gao @ 2019-05-05 5:26 UTC (permalink / raw) To: Bi, Dandan, devel@edk2.groups.io Cc: Kinney, Michael D, Wang, Jian J, Wu, Hao A, Ni, Ray, Sun, Zailiang, Qian, Yi, Ard Biesheuvel, Leif Lindholm Dandan: This change is good. Please list the information in its BZ. Thanks Liming >-----Original Message----- >From: Bi, Dandan >Sent: Tuesday, April 30, 2019 4:59 PM >To: devel@edk2.groups.io >Cc: Kinney, Michael D <michael.d.kinney@intel.com>; Gao, Liming ><liming.gao@intel.com>; Wang, Jian J <jian.j.wang@intel.com>; Wu, Hao A ><hao.a.wu@intel.com>; Ni, Ray <ray.ni@intel.com>; Sun, Zailiang ><zailiang.sun@intel.com>; Qian, Yi <yi.qian@intel.com>; Ard Biesheuvel ><ard.biesheuvel@linaro.org>; Leif Lindholm <leif.lindholm@linaro.org> >Subject: [RFC] [patch] Merge >MdeModulePkg\BaseTianoCustomDecompressLib into >MdePkg\BaseUefiDecompressLib > >BaseUefiDecompressLib in MdePkg implements the UEFI Decompress >algorithm. >BaseUefiTianoCustomDecompressLib in MdeModulePkg implements the UEFI >Decompress algorithm >and Tiano Custom Decompression algorithm. >Tiano custom decompression algorithm shares most of the code with the UEFI >Decompress algorithm. >So BaseUefiDecompressLib and BaseUefiTianoCustomDecompressLib have >lots common code. >We plan to merge the MdeModulePkg\BaseTianoCustomDecompressLib into >MdePkg\BaseUefiDecompressLib, >in order to reduce the duplicated codes and maintain these two Decompress >algorithms easily. > >Propose to update: >1. Make the implemtations of these two Decompress algorithms in exstring >MdePkg/Library/BaseUefiDecompressLib. >2. keep existing BaseUefiDecompressLib.inf in >MdePkg/Library/BaseUefiDecompressLib for UEFI Decompress algorithm. >3. Add BaseTianoCustomDecompressLib.inf in >MdePkg/Library/BaseUefiDecompressLib for Tiano Custom Decompression >algorithm. >4. Make existing BaseUefiDecompressLib.c in >MdePkg/Library/BaseUefiDecompressLib to support the Tiano Custom >Decompression algorithm > besides existing UEFI Decompress algorithm. >5. Remove the gTianoCustomDecompressGuid header file from >MdeModulePkg/Include/Guid/TianoDecompress.h > Move the gTianoCustomDecompressGuid definition from >MdeModulePkg.dec to MdePkg.dec. >6. Remove the MdeModulePkg/Library/BaseUefiTianoCustomDecompressLib >from edk2. > >The draf updates are covered by this patch. > >Impact analysis: >1. No impact to the usage of BaseUefiDecompressLib. >2. Need to update the consumers of > >MdeModulePkg/Library/BaseUefiTianoCustomDecompressLib/BaseUefiTiano >CustomDecompressLib.inf > to use > >MdePkg/Library/BaseUefiDecompressLib/BaseTianoCustomDecompressLib.in >f >3. Current impacted platforms: > edk2 repo: > Nt32Pkg > Quark > vlv2tbltdevicepkg > edk2-platforms repo: > AMD Overdrive > Lemaker Cello > Raspberry Pi3 > SoftIron 1000 > D03/D05/D06 > Hikey/Hikey960 > >For platforms in edk2 repo, we can add the >BaseTianoCustomDecompressLib.inf in >MdePkg/Library/BaseUefiDecompressLib firstly >and then update platform consumers, remove the >MdeModulePkg/Library/BaseUefiTianoCustomDecompressLib at last. > >For the platforms in edk2-platforms repo, I find they don't use the Tiano >Custom Decompression algorithm actually. >So we can update them to use the >MdePkg/Library/BaseUefiDecompressLib/BaseUefiDecompressLib.inf firstly >to avoid any >imconpatible changes. > >Cc: Michael D Kinney <michael.d.kinney@intel.com> >Cc: Liming Gao <liming.gao@intel.com> >Cc: Jian J Wang <jian.j.wang@intel.com> >Cc: Hao Wu <hao.a.wu@intel.com> >Cc: Ray Ni <ray.ni@intel.com> >Cc: Zailiang Sun <zailiang.sun@intel.com> >Cc: Yi Qian <yi.qian@intel.com> >Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org> >Cc: Leif Lindholm <leif.lindholm@linaro.org> > >Signed-off-by: Dandan Bi <dandan.bi@intel.com> >--- > MdeModulePkg/Include/Guid/TianoDecompress.h | 22 - > .../BaseUefiTianoCustomDecompressLib.c | 1063 ----------------- > ...aseUefiTianoCustomDecompressLibInternals.h | 214 ---- > .../BaseUefiTianoDecompressLib.uni | 16 - > MdeModulePkg/MdeModulePkg.dec | 4 - > MdeModulePkg/MdeModulePkg.dsc | 1 - > .../BaseTianoCustomDecompressLib.inf | 5 +- > .../BaseUefiDecompressLib.c | 261 +++- > .../BaseUefiDecompressLib.inf | 2 + > .../BaseUefiDecompressLib.uni | 6 +- > MdePkg/MdePkg.dec | 5 + > MdePkg/MdePkg.dsc | 1 + > 12 files changed, 270 insertions(+), 1330 deletions(-) > delete mode 100644 MdeModulePkg/Include/Guid/TianoDecompress.h > delete mode 100644 >MdeModulePkg/Library/BaseUefiTianoCustomDecompressLib/BaseUefiTiano >CustomDecompressLib.c > delete mode 100644 >MdeModulePkg/Library/BaseUefiTianoCustomDecompressLib/BaseUefiTiano >CustomDecompressLibInternals.h > delete mode 100644 >MdeModulePkg/Library/BaseUefiTianoCustomDecompressLib/BaseUefiTiano >DecompressLib.uni > rename >MdeModulePkg/Library/BaseUefiTianoCustomDecompressLib/BaseUefiTiano >CustomDecompressLib.inf => >MdePkg/Library/BaseUefiDecompressLib/BaseTianoCustomDecompressLib.in >f (88%) > >diff --git a/MdeModulePkg/Include/Guid/TianoDecompress.h >b/MdeModulePkg/Include/Guid/TianoDecompress.h >deleted file mode 100644 >index 40f74f88f3..0000000000 >--- a/MdeModulePkg/Include/Guid/TianoDecompress.h >+++ /dev/null >@@ -1,22 +0,0 @@ >-/** @file >- Tiano Custom decompress Guid definition. >- >-Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR> >-SPDX-License-Identifier: BSD-2-Clause-Patent >- >-**/ >- >-#ifndef __TIANO_CUSTOM_DECOMPRESS_GUID_H__ >-#define __TIANO_CUSTOM_DECOMPRESS_GUID_H__ >- >-/// >-/// The Global ID used to identify a section of an FFS file of type >-/// EFI_SECTION_GUID_DEFINED, whose contents have been compressed >using >-/// Tiano Custom compression. >-/// >-#define TIANO_CUSTOM_DECOMPRESS_GUID \ >- { 0xA31280AD, 0x481E, 0x41B6, { 0x95, 0xE8, 0x12, 0x7F, 0x4C, 0x98, 0x47, >0x79 } } >- >-extern GUID gTianoCustomDecompressGuid; >- >-#endif >diff --git >a/MdeModulePkg/Library/BaseUefiTianoCustomDecompressLib/BaseUefiTia >noCustomDecompressLib.c >b/MdeModulePkg/Library/BaseUefiTianoCustomDecompressLib/BaseUefiTia >noCustomDecompressLib.c >deleted file mode 100644 >index 38b66b1906..0000000000 >--- >a/MdeModulePkg/Library/BaseUefiTianoCustomDecompressLib/BaseUefiTia >noCustomDecompressLib.c >+++ /dev/null >@@ -1,1063 +0,0 @@ >-/** @file >- UEFI and Tiano Custom Decompress Library >- It will do Tiano or UEFI decompress with different verison parameter. >- >-Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR> >-SPDX-License-Identifier: BSD-2-Clause-Patent >- >-**/ >- >-#include "BaseUefiTianoCustomDecompressLibInternals.h" >- >-/** >- Shift mBitBuf NumOfBits left. Read in NumOfBits of bits from source. >- >- @param Sd The global scratch data >- @param NumOfBits The number of bits to shift and read. >-**/ >-VOID >-FillBuf ( >- IN SCRATCH_DATA *Sd, >- IN UINT16 NumOfBits >- ) >-{ >- // >- // Left shift NumOfBits of bits in advance >- // >- Sd->mBitBuf = (UINT32) LShiftU64 (((UINT64)Sd->mBitBuf), NumOfBits); >- >- // >- // Copy data needed in bytes into mSbuBitBuf >- // >- while (NumOfBits > Sd->mBitCount) { >- NumOfBits = (UINT16) (NumOfBits - Sd->mBitCount); >- Sd->mBitBuf |= (UINT32) LShiftU64 (((UINT64)Sd->mSubBitBuf), >NumOfBits); >- >- if (Sd->mCompSize > 0) { >- // >- // Get 1 byte into SubBitBuf >- // >- Sd->mCompSize--; >- Sd->mSubBitBuf = 0; >- Sd->mSubBitBuf = Sd->mSrcBase[Sd->mInBuf++]; >- Sd->mBitCount = 8; >- >- } else { >- // >- // No more bits from the source, just pad zero bit. >- // >- Sd->mSubBitBuf = 0; >- Sd->mBitCount = 8; >- >- } >- } >- >- // >- // Calculate additional bit count read to update mBitCount >- // >- Sd->mBitCount = (UINT16) (Sd->mBitCount - NumOfBits); >- >- // >- // Copy NumOfBits of bits from mSubBitBuf into mBitBuf >- // >- Sd->mBitBuf |= Sd->mSubBitBuf >> Sd->mBitCount; >-} >- >-/** >- Get NumOfBits of bits out from mBitBuf >- >- Get NumOfBits of bits out from mBitBuf. Fill mBitBuf with subsequent >- NumOfBits of bits from source. Returns NumOfBits of bits that are >- popped out. >- >- @param Sd The global scratch data. >- @param NumOfBits The number of bits to pop and read. >- >- @return The bits that are popped out. >- >-**/ >-UINT32 >-GetBits ( >- IN SCRATCH_DATA *Sd, >- IN UINT16 NumOfBits >- ) >-{ >- UINT32 OutBits; >- >- // >- // Pop NumOfBits of Bits from Left >- // >- OutBits = (UINT32) (Sd->mBitBuf >> (BITBUFSIZ - NumOfBits)); >- >- // >- // Fill up mBitBuf from source >- // >- FillBuf (Sd, NumOfBits); >- >- return OutBits; >-} >- >-/** >- Creates Huffman Code mapping table according to code length array. >- >- Creates Huffman Code mapping table for Extra Set, Char&Len Set >- and Position Set according to code length array. >- If TableBits > 16, then ASSERT (). >- >- @param Sd The global scratch data >- @param NumOfChar Number of symbols in the symbol set >- @param BitLen Code length array >- @param TableBits The width of the mapping table >- @param Table The table to be created. >- >- @retval 0 OK. >- @retval BAD_TABLE The table is corrupted. >- >-**/ >-UINT16 >-MakeTable ( >- IN SCRATCH_DATA *Sd, >- IN UINT16 NumOfChar, >- IN UINT8 *BitLen, >- IN UINT16 TableBits, >- OUT UINT16 *Table >- ) >-{ >- UINT16 Count[17]; >- UINT16 Weight[17]; >- UINT16 Start[18]; >- UINT16 *Pointer; >- UINT16 Index3; >- UINT16 Index; >- UINT16 Len; >- UINT16 Char; >- UINT16 JuBits; >- UINT16 Avail; >- UINT16 NextCode; >- UINT16 Mask; >- UINT16 WordOfStart; >- UINT16 WordOfCount; >- UINT16 MaxTableLength; >- >- // >- // The maximum mapping table width supported by this internal >- // working function is 16. >- // >- ASSERT (TableBits <= 16); >- >- for (Index = 0; Index <= 16; Index++) { >- Count[Index] = 0; >- } >- >- for (Index = 0; Index < NumOfChar; Index++) { >- if (BitLen[Index] > 16) { >- return (UINT16) BAD_TABLE; >- } >- Count[BitLen[Index]]++; >- } >- >- Start[0] = 0; >- Start[1] = 0; >- >- for (Index = 1; Index <= 16; Index++) { >- WordOfStart = Start[Index]; >- WordOfCount = Count[Index]; >- Start[Index + 1] = (UINT16) (WordOfStart + (WordOfCount << (16 - Index))); >- } >- >- if (Start[17] != 0) { >- /*(1U << 16)*/ >- return (UINT16) BAD_TABLE; >- } >- >- JuBits = (UINT16) (16 - TableBits); >- >- Weight[0] = 0; >- for (Index = 1; Index <= TableBits; Index++) { >- Start[Index] >>= JuBits; >- Weight[Index] = (UINT16) (1U << (TableBits - Index)); >- } >- >- while (Index <= 16) { >- Weight[Index] = (UINT16) (1U << (16 - Index)); >- Index++; >- } >- >- Index = (UINT16) (Start[TableBits + 1] >> JuBits); >- >- if (Index != 0) { >- Index3 = (UINT16) (1U << TableBits); >- if (Index < Index3) { >- SetMem16 (Table + Index, (Index3 - Index) * sizeof (*Table), 0); >- } >- } >- >- Avail = NumOfChar; >- Mask = (UINT16) (1U << (15 - TableBits)); >- MaxTableLength = (UINT16) (1U << TableBits); >- >- for (Char = 0; Char < NumOfChar; Char++) { >- >- Len = BitLen[Char]; >- if (Len == 0 || Len >= 17) { >- continue; >- } >- >- NextCode = (UINT16) (Start[Len] + Weight[Len]); >- >- if (Len <= TableBits) { >- >- for (Index = Start[Len]; Index < NextCode; Index++) { >- if (Index >= MaxTableLength) { >- return (UINT16) BAD_TABLE; >- } >- Table[Index] = Char; >- } >- >- } else { >- >- Index3 = Start[Len]; >- Pointer = &Table[Index3 >> JuBits]; >- Index = (UINT16) (Len - TableBits); >- >- while (Index != 0) { >- if (*Pointer == 0 && Avail < (2 * NC - 1)) { >- Sd->mRight[Avail] = Sd->mLeft[Avail] = 0; >- *Pointer = Avail++; >- } >- >- if (*Pointer < (2 * NC - 1)) { >- if ((Index3 & Mask) != 0) { >- Pointer = &Sd->mRight[*Pointer]; >- } else { >- Pointer = &Sd->mLeft[*Pointer]; >- } >- } >- >- Index3 <<= 1; >- Index--; >- } >- >- *Pointer = Char; >- >- } >- >- Start[Len] = NextCode; >- } >- // >- // Succeeds >- // >- return 0; >-} >- >-/** >- Decodes a position value. >- >- Get a position value according to Position Huffman Table. >- >- @param Sd the global scratch data >- >- @return The position value decoded. >-**/ >-UINT32 >-DecodeP ( >- IN SCRATCH_DATA *Sd >- ) >-{ >- UINT16 Val; >- UINT32 Mask; >- UINT32 Pos; >- >- Val = Sd->mPTTable[Sd->mBitBuf >> (BITBUFSIZ - 8)]; >- >- if (Val >= MAXNP) { >- Mask = 1U << (BITBUFSIZ - 1 - 8); >- >- do { >- >- if ((Sd->mBitBuf & Mask) != 0) { >- Val = Sd->mRight[Val]; >- } else { >- Val = Sd->mLeft[Val]; >- } >- >- Mask >>= 1; >- } while (Val >= MAXNP); >- } >- // >- // Advance what we have read >- // >- FillBuf (Sd, Sd->mPTLen[Val]); >- >- Pos = Val; >- if (Val > 1) { >- Pos = (UINT32) ((1U << (Val - 1)) + GetBits (Sd, (UINT16) (Val - 1))); >- } >- >- return Pos; >-} >- >-/** >- Reads code lengths for the Extra Set or the Position Set. >- >- Read in the Extra Set or Position Set Length Array, then >- generate the Huffman code mapping for them. >- >- @param Sd The global scratch data. >- @param nn Number of symbols. >- @param nbit Number of bits needed to represent nn. >- @param Special The special symbol that needs to be taken care of. >- >- @retval 0 OK. >- @retval BAD_TABLE Table is corrupted. >- >-**/ >-UINT16 >-ReadPTLen ( >- IN SCRATCH_DATA *Sd, >- IN UINT16 nn, >- IN UINT16 nbit, >- IN UINT16 Special >- ) >-{ >- UINT16 Number; >- UINT16 CharC; >- UINT16 Index; >- UINT32 Mask; >- >- ASSERT (nn <= NPT); >- // >- // Read Extra Set Code Length Array size >- // >- Number = (UINT16) GetBits (Sd, nbit); >- >- if (Number == 0) { >- // >- // This represents only Huffman code used >- // >- CharC = (UINT16) GetBits (Sd, nbit); >- >- for (Index = 0; Index < 256; Index++) { >- Sd->mPTTable[Index] = CharC; >- } >- >- SetMem (Sd->mPTLen, nn, 0); >- >- return 0; >- } >- >- Index = 0; >- >- while (Index < Number && Index < NPT) { >- >- CharC = (UINT16) (Sd->mBitBuf >> (BITBUFSIZ - 3)); >- >- // >- // If a code length is less than 7, then it is encoded as a 3-bit >- // value. Or it is encoded as a series of "1"s followed by a >- // terminating "0". The number of "1"s = Code length - 4. >- // >- if (CharC == 7) { >- Mask = 1U << (BITBUFSIZ - 1 - 3); >- while (Mask & Sd->mBitBuf) { >- Mask >>= 1; >- CharC += 1; >- } >- } >- >- FillBuf (Sd, (UINT16) ((CharC < 7) ? 3 : CharC - 3)); >- >- Sd->mPTLen[Index++] = (UINT8) CharC; >- >- // >- // For Code&Len Set, >- // After the third length of the code length concatenation, >- // a 2-bit value is used to indicated the number of consecutive >- // zero lengths after the third length. >- // >- if (Index == Special) { >- CharC = (UINT16) GetBits (Sd, 2); >- while ((INT16) (--CharC) >= 0 && Index < NPT) { >- Sd->mPTLen[Index++] = 0; >- } >- } >- } >- >- while (Index < nn && Index < NPT) { >- Sd->mPTLen[Index++] = 0; >- } >- >- return MakeTable (Sd, nn, Sd->mPTLen, 8, Sd->mPTTable); >-} >- >-/** >- Reads code lengths for Char&Len Set. >- >- Read in and decode the Char&Len Set Code Length Array, then >- generate the Huffman Code mapping table for the Char&Len Set. >- >- @param Sd the global scratch data >- >-**/ >-VOID >-ReadCLen ( >- SCRATCH_DATA *Sd >- ) >-{ >- UINT16 Number; >- UINT16 CharC; >- UINT16 Index; >- UINT32 Mask; >- >- Number = (UINT16) GetBits (Sd, CBIT); >- >- if (Number == 0) { >- // >- // This represents only Huffman code used >- // >- CharC = (UINT16) GetBits (Sd, CBIT); >- >- SetMem (Sd->mCLen, NC, 0); >- >- for (Index = 0; Index < 4096; Index++) { >- Sd->mCTable[Index] = CharC; >- } >- >- return ; >- } >- >- Index = 0; >- while (Index < Number && Index < NC) { >- CharC = Sd->mPTTable[Sd->mBitBuf >> (BITBUFSIZ - 8)]; >- if (CharC >= NT) { >- Mask = 1U << (BITBUFSIZ - 1 - 8); >- >- do { >- >- if (Mask & Sd->mBitBuf) { >- CharC = Sd->mRight[CharC]; >- } else { >- CharC = Sd->mLeft[CharC]; >- } >- >- Mask >>= 1; >- >- } while (CharC >= NT); >- } >- // >- // Advance what we have read >- // >- FillBuf (Sd, Sd->mPTLen[CharC]); >- >- if (CharC <= 2) { >- >- if (CharC == 0) { >- CharC = 1; >- } else if (CharC == 1) { >- CharC = (UINT16) (GetBits (Sd, 4) + 3); >- } else if (CharC == 2) { >- CharC = (UINT16) (GetBits (Sd, CBIT) + 20); >- } >- >- while ((INT16) (--CharC) >= 0 && Index < NC) { >- Sd->mCLen[Index++] = 0; >- } >- >- } else { >- >- Sd->mCLen[Index++] = (UINT8) (CharC - 2); >- >- } >- } >- >- SetMem (Sd->mCLen + Index, NC - Index, 0); >- >- MakeTable (Sd, NC, Sd->mCLen, 12, Sd->mCTable); >- >- return ; >-} >- >-/** >- Decode a character/length value. >- >- Read one value from mBitBuf, Get one code from mBitBuf. If it is at block >boundary, generates >- Huffman code mapping table for Extra Set, Code&Len Set and >- Position Set. >- >- @param Sd The global scratch data. >- >- @return The value decoded. >- >-**/ >-UINT16 >-DecodeC ( >- SCRATCH_DATA *Sd >- ) >-{ >- UINT16 Index2; >- UINT32 Mask; >- >- if (Sd->mBlockSize == 0) { >- // >- // Starting a new block >- // Read BlockSize from block header >- // >- Sd->mBlockSize = (UINT16) GetBits (Sd, 16); >- >- // >- // Read in the Extra Set Code Length Array, >- // Generate the Huffman code mapping table for Extra Set. >- // >- Sd->mBadTableFlag = ReadPTLen (Sd, NT, TBIT, 3); >- if (Sd->mBadTableFlag != 0) { >- return 0; >- } >- >- // >- // Read in and decode the Char&Len Set Code Length Array, >- // Generate the Huffman code mapping table for Char&Len Set. >- // >- ReadCLen (Sd); >- >- // >- // Read in the Position Set Code Length Array, >- // Generate the Huffman code mapping table for the Position Set. >- // >- Sd->mBadTableFlag = ReadPTLen (Sd, MAXNP, Sd->mPBit, (UINT16) (-1)); >- if (Sd->mBadTableFlag != 0) { >- return 0; >- } >- } >- >- // >- // Get one code according to Code&Set Huffman Table >- // >- Sd->mBlockSize--; >- Index2 = Sd->mCTable[Sd->mBitBuf >> (BITBUFSIZ - 12)]; >- >- if (Index2 >= NC) { >- Mask = 1U << (BITBUFSIZ - 1 - 12); >- >- do { >- if ((Sd->mBitBuf & Mask) != 0) { >- Index2 = Sd->mRight[Index2]; >- } else { >- Index2 = Sd->mLeft[Index2]; >- } >- >- Mask >>= 1; >- } while (Index2 >= NC); >- } >- // >- // Advance what we have read >- // >- FillBuf (Sd, Sd->mCLen[Index2]); >- >- return Index2; >-} >- >-/** >- Decode the source data and put the resulting data into the destination >buffer. >- >- @param Sd The global scratch data >-**/ >-VOID >-Decode ( >- SCRATCH_DATA *Sd >- ) >-{ >- UINT16 BytesRemain; >- UINT32 DataIdx; >- UINT16 CharC; >- >- BytesRemain = (UINT16) (-1); >- >- DataIdx = 0; >- >- for (;;) { >- // >- // Get one code from mBitBuf >- // >- CharC = DecodeC (Sd); >- if (Sd->mBadTableFlag != 0) { >- goto Done; >- } >- >- if (CharC < 256) { >- // >- // Process an Original character >- // >- if (Sd->mOutBuf >= Sd->mOrigSize) { >- goto Done; >- } else { >- // >- // Write orignal character into mDstBase >- // >- Sd->mDstBase[Sd->mOutBuf++] = (UINT8) CharC; >- } >- >- } else { >- // >- // Process a Pointer >- // >- CharC = (UINT16) (CharC - (BIT8 - THRESHOLD)); >- >- // >- // Get string length >- // >- BytesRemain = CharC; >- >- // >- // Locate string position >- // >- DataIdx = Sd->mOutBuf - DecodeP (Sd) - 1; >- >- // >- // Write BytesRemain of bytes into mDstBase >- // >- BytesRemain--; >- while ((INT16) (BytesRemain) >= 0) { >- if (Sd->mOutBuf >= Sd->mOrigSize) { >- goto Done ; >- } >- if (DataIdx >= Sd->mOrigSize) { >- Sd->mBadTableFlag = (UINT16) BAD_TABLE; >- goto Done ; >- } >- Sd->mDstBase[Sd->mOutBuf++] = Sd->mDstBase[DataIdx++]; >- >- BytesRemain--; >- } >- // >- // Once mOutBuf is fully filled, directly return >- // >- if (Sd->mOutBuf >= Sd->mOrigSize) { >- goto Done ; >- } >- } >- } >- >-Done: >- return ; >-} >- >-/** >- Given a compressed source buffer, this function retrieves the size of >- the uncompressed buffer and the size of the scratch buffer required >- to decompress the compressed source buffer. >- >- Retrieves the size of the uncompressed buffer and the temporary scratch >buffer >- required to decompress the buffer specified by Source and SourceSize. >- If the size of the uncompressed buffer or the size of the scratch buffer >cannot >- be determined from the compressed data specified by Source and >SourceData, >- then RETURN_INVALID_PARAMETER is returned. Otherwise, the size of the >uncompressed >- buffer is returned in DestinationSize, the size of the scratch buffer is >returned >- in ScratchSize, and RETURN_SUCCESS is returned. >- This function does not have scratch buffer available to perform a thorough >- checking of the validity of the source data. It just retrieves the "Original >Size" >- field from the beginning bytes of the source data and output it as >DestinationSize. >- And ScratchSize is specific to the decompression implementation. >- >- If Source is NULL, then ASSERT(). >- If DestinationSize is NULL, then ASSERT(). >- If ScratchSize is NULL, then ASSERT(). >- >- @param Source The source buffer containing the compressed data. >- @param SourceSize The size, in bytes, of the source buffer. >- @param DestinationSize A pointer to the size, in bytes, of the >uncompressed buffer >- that will be generated when the compressed buffer specified >- by Source and SourceSize is decompressed.. >- @param ScratchSize A pointer to the size, in bytes, of the scratch buffer >that >- is required to decompress the compressed buffer specified >- by Source and SourceSize. >- >- @retval RETURN_SUCCESS The size of the uncompressed data was >returned >- in DestinationSize and the size of the scratch >- buffer was returned in ScratchSize. >- @retval RETURN_INVALID_PARAMETER >- The size of the uncompressed data or the size of >- the scratch buffer cannot be determined from >- the compressed data specified by Source >- and SourceSize. >-**/ >-RETURN_STATUS >-EFIAPI >-UefiDecompressGetInfo ( >- IN CONST VOID *Source, >- IN UINT32 SourceSize, >- OUT UINT32 *DestinationSize, >- OUT UINT32 *ScratchSize >- ) >-{ >- UINT32 CompressedSize; >- >- ASSERT (Source != NULL); >- ASSERT (DestinationSize != NULL); >- ASSERT (ScratchSize != NULL); >- >- if (SourceSize < 8) { >- return RETURN_INVALID_PARAMETER; >- } >- >- CompressedSize = ReadUnaligned32 ((UINT32 *)Source); >- if (SourceSize < (CompressedSize + 8) || (CompressedSize + 8) < 8) { >- return RETURN_INVALID_PARAMETER; >- } >- >- *ScratchSize = sizeof (SCRATCH_DATA); >- *DestinationSize = ReadUnaligned32 ((UINT32 *)Source + 1); >- >- return RETURN_SUCCESS; >-} >- >-/** >- Decompresses a compressed source buffer by EFI or Tiano algorithm. >- >- Extracts decompressed data to its original form. >- This function is designed so that the decompression algorithm can be >implemented >- without using any memory services. As a result, this function is not allowed >to >- call any memory allocation services in its implementation. It is the caller's >- responsibility to allocate and free the Destination and Scratch buffers. >- If the compressed source data specified by Source is successfully >decompressed >- into Destination, then RETURN_SUCCESS is returned. If the compressed >source data >- specified by Source is not in a valid compressed data format, >- then RETURN_INVALID_PARAMETER is returned. >- >- If Source is NULL, then ASSERT(). >- If Destination is NULL, then ASSERT(). >- If the required scratch buffer size > 0 and Scratch is NULL, then ASSERT(). >- >- @param Source The source buffer containing the compressed data. >- @param Destination The destination buffer to store the decompressed >data >- @param Scratch A temporary scratch buffer that is used to perform the >decompression. >- This is an optional parameter that may be NULL if the >- required scratch buffer size is 0. >- @param Version 1 for UEFI Decompress algoruthm, 2 for Tiano >Decompess algorithm. >- >- @retval RETURN_SUCCESS Decompression completed successfully, and >- the uncompressed buffer is returned in Destination. >- @retval RETURN_INVALID_PARAMETER >- The source buffer specified by Source is corrupted >- (not in a valid compressed format). >-**/ >-RETURN_STATUS >-EFIAPI >-UefiTianoDecompress ( >- IN CONST VOID *Source, >- IN OUT VOID *Destination, >- IN OUT VOID *Scratch, >- IN UINT32 Version >- ) >-{ >- UINT32 CompSize; >- UINT32 OrigSize; >- SCRATCH_DATA *Sd; >- CONST UINT8 *Src; >- UINT8 *Dst; >- >- ASSERT (Source != NULL); >- ASSERT (Destination != NULL); >- ASSERT (Scratch != NULL); >- >- Src = Source; >- Dst = Destination; >- >- Sd = (SCRATCH_DATA *) Scratch; >- >- CompSize = Src[0] + (Src[1] << 8) + (Src[2] << 16) + (Src[3] << 24); >- OrigSize = Src[4] + (Src[5] << 8) + (Src[6] << 16) + (Src[7] << 24); >- >- // >- // If compressed file size is 0, return >- // >- if (OrigSize == 0) { >- return RETURN_SUCCESS; >- } >- >- Src = Src + 8; >- >- SetMem (Sd, sizeof (SCRATCH_DATA), 0); >- >- // >- // The length of the field 'Position Set Code Length Array Size' in Block >Header. >- // For UEFI 2.0 de/compression algorithm(Version 1), mPBit = 4 >- // For Tiano de/compression algorithm(Version 2), mPBit = 5 >- // >- switch (Version) { >- case 1 : >- Sd->mPBit = 4; >- break; >- case 2 : >- Sd->mPBit = 5; >- break; >- default: >- ASSERT (FALSE); >- } >- Sd->mSrcBase = (UINT8 *)Src; >- Sd->mDstBase = Dst; >- // >- // CompSize and OrigSize are calculated in bytes >- // >- Sd->mCompSize = CompSize; >- Sd->mOrigSize = OrigSize; >- >- // >- // Fill the first BITBUFSIZ bits >- // >- FillBuf (Sd, BITBUFSIZ); >- >- // >- // Decompress it >- // >- Decode (Sd); >- >- if (Sd->mBadTableFlag != 0) { >- // >- // Something wrong with the source >- // >- return RETURN_INVALID_PARAMETER; >- } >- >- return RETURN_SUCCESS; >-} >- >-/** >- Decompresses a UEFI compressed source buffer. >- >- Extracts decompressed data to its original form. >- This function is designed so that the decompression algorithm can be >implemented >- without using any memory services. As a result, this function is not allowed >to >- call any memory allocation services in its implementation. It is the caller's >- responsibility to allocate and free the Destination and Scratch buffers. >- If the compressed source data specified by Source is successfully >decompressed >- into Destination, then RETURN_SUCCESS is returned. If the compressed >source data >- specified by Source is not in a valid compressed data format, >- then RETURN_INVALID_PARAMETER is returned. >- >- If Source is NULL, then ASSERT(). >- If Destination is NULL, then ASSERT(). >- If the required scratch buffer size > 0 and Scratch is NULL, then ASSERT(). >- >- @param Source The source buffer containing the compressed data. >- @param Destination The destination buffer to store the decompressed >data >- @param Scratch A temporary scratch buffer that is used to perform the >decompression. >- This is an optional parameter that may be NULL if the >- required scratch buffer size is 0. >- >- @retval RETURN_SUCCESS Decompression completed successfully, and >- the uncompressed buffer is returned in Destination. >- @retval RETURN_INVALID_PARAMETER >- The source buffer specified by Source is corrupted >- (not in a valid compressed format). >-**/ >-RETURN_STATUS >-EFIAPI >-UefiDecompress ( >- IN CONST VOID *Source, >- IN OUT VOID *Destination, >- IN OUT VOID *Scratch OPTIONAL >- ) >-{ >- return UefiTianoDecompress (Source, Destination, Scratch, 1); >-} >- >-/** >- Examines a GUIDed section and returns the size of the decoded buffer and >the >- size of an optional scratch buffer required to actually decode the data in a >GUIDed section. >- >- Examines a GUIDed section specified by InputSection. >- If GUID for InputSection does not match the GUID that this handler supports, >- then RETURN_UNSUPPORTED is returned. >- If the required information can not be retrieved from InputSection, >- then RETURN_INVALID_PARAMETER is returned. >- If the GUID of InputSection does match the GUID that this handler supports, >- then the size required to hold the decoded buffer is returned in >OututBufferSize, >- the size of an optional scratch buffer is returned in ScratchSize, and the >Attributes field >- from EFI_GUID_DEFINED_SECTION header of InputSection is returned in >SectionAttribute. >- >- If InputSection is NULL, then ASSERT(). >- If OutputBufferSize is NULL, then ASSERT(). >- If ScratchBufferSize is NULL, then ASSERT(). >- If SectionAttribute is NULL, then ASSERT(). >- >- >- @param[in] InputSection A pointer to a GUIDed section of an FFS >formatted file. >- @param[out] OutputBufferSize A pointer to the size, in bytes, of an output >buffer required >- if the buffer specified by InputSection were decoded. >- @param[out] ScratchBufferSize A pointer to the size, in bytes, required as >scratch space >- if the buffer specified by InputSection were decoded. >- @param[out] SectionAttribute A pointer to the attributes of the GUIDed >section. See the Attributes >- field of EFI_GUID_DEFINED_SECTION in the PI Specification. >- >- @retval RETURN_SUCCESS The information about InputSection was >returned. >- @retval RETURN_UNSUPPORTED The section specified by InputSection >does not match the GUID this handler supports. >- @retval RETURN_INVALID_PARAMETER The information can not be >retrieved from the section specified by InputSection. >- >-**/ >-RETURN_STATUS >-EFIAPI >-TianoDecompressGetInfo ( >- IN CONST VOID *InputSection, >- OUT UINT32 *OutputBufferSize, >- OUT UINT32 *ScratchBufferSize, >- OUT UINT16 *SectionAttribute >- ) >- >-{ >- ASSERT (SectionAttribute != NULL); >- >- if (InputSection == NULL) { >- return RETURN_INVALID_PARAMETER; >- } >- >- if (IS_SECTION2 (InputSection)) { >- if (!CompareGuid ( >- &gTianoCustomDecompressGuid, >- &(((EFI_GUID_DEFINED_SECTION2 *) InputSection)- >>SectionDefinitionGuid))) { >- return RETURN_INVALID_PARAMETER; >- } >- // >- // Get guid attribute of guid section. >- // >- *SectionAttribute = ((EFI_GUID_DEFINED_SECTION2 *) InputSection)- >>Attributes; >- >- // >- // Call Tiano GetInfo to get the required size info. >- // >- return UefiDecompressGetInfo ( >- (UINT8 *) InputSection + ((EFI_GUID_DEFINED_SECTION2 *) >InputSection)->DataOffset, >- SECTION2_SIZE (InputSection) - ((EFI_GUID_DEFINED_SECTION2 *) >InputSection)->DataOffset, >- OutputBufferSize, >- ScratchBufferSize >- ); >- } else { >- if (!CompareGuid ( >- &gTianoCustomDecompressGuid, >- &(((EFI_GUID_DEFINED_SECTION *) InputSection)- >>SectionDefinitionGuid))) { >- return RETURN_INVALID_PARAMETER; >- } >- // >- // Get guid attribute of guid section. >- // >- *SectionAttribute = ((EFI_GUID_DEFINED_SECTION *) InputSection)- >>Attributes; >- >- // >- // Call Tiano GetInfo to get the required size info. >- // >- return UefiDecompressGetInfo ( >- (UINT8 *) InputSection + ((EFI_GUID_DEFINED_SECTION *) >InputSection)->DataOffset, >- SECTION_SIZE (InputSection) - ((EFI_GUID_DEFINED_SECTION *) >InputSection)->DataOffset, >- OutputBufferSize, >- ScratchBufferSize >- ); >- } >-} >- >-/** >- Decompress a Tiano compressed GUIDed section into a caller allocated >output buffer. >- >- Decodes the GUIDed section specified by InputSection. >- If GUID for InputSection does not match the GUID that this handler supports, >then RETURN_UNSUPPORTED is returned. >- If the data in InputSection can not be decoded, then >RETURN_INVALID_PARAMETER is returned. >- If the GUID of InputSection does match the GUID that this handler supports, >then InputSection >- is decoded into the buffer specified by OutputBuffer and the authentication >status of this >- decode operation is returned in AuthenticationStatus. If the decoded >buffer is identical to the >- data in InputSection, then OutputBuffer is set to point at the data in >InputSection. Otherwise, >- the decoded data will be placed in caller allocated buffer specified by >OutputBuffer. >- >- If InputSection is NULL, then ASSERT(). >- If OutputBuffer is NULL, then ASSERT(). >- If ScratchBuffer is NULL and this decode operation requires a scratch buffer, >then ASSERT(). >- If AuthenticationStatus is NULL, then ASSERT(). >- >- >- @param[in] InputSection A pointer to a GUIDed section of an FFS >formatted file. >- @param[out] OutputBuffer A pointer to a buffer that contains the result of >a decode operation. >- @param[in] ScratchBuffer A caller allocated buffer that may be required by >this function >- as a scratch buffer to perform the decode operation. >- @param[out] AuthenticationStatus >- A pointer to the authentication status of the decoded output >buffer. >- See the definition of authentication status in the >EFI_PEI_GUIDED_SECTION_EXTRACTION_PPI >- section of the PI Specification. >EFI_AUTH_STATUS_PLATFORM_OVERRIDE must >- never be set by this handler. >- >- @retval RETURN_SUCCESS The buffer specified by InputSection was >decoded. >- @retval RETURN_UNSUPPORTED The section specified by InputSection >does not match the GUID this handler supports. >- @retval RETURN_INVALID_PARAMETER The section specified by >InputSection can not be decoded. >- >-**/ >-RETURN_STATUS >-EFIAPI >-TianoDecompress ( >- IN CONST VOID *InputSection, >- OUT VOID **OutputBuffer, >- IN VOID *ScratchBuffer, OPTIONAL >- OUT UINT32 *AuthenticationStatus >- ) >-{ >- ASSERT (OutputBuffer != NULL); >- ASSERT (InputSection != NULL); >- >- if (IS_SECTION2 (InputSection)) { >- if (!CompareGuid ( >- &gTianoCustomDecompressGuid, >- &(((EFI_GUID_DEFINED_SECTION2 *) InputSection)- >>SectionDefinitionGuid))) { >- return RETURN_INVALID_PARAMETER; >- } >- >- // >- // Set Authentication to Zero. >- // >- *AuthenticationStatus = 0; >- >- // >- // Call Tiano Decompress to get the raw data >- // >- return UefiTianoDecompress ( >- (UINT8 *) InputSection + ((EFI_GUID_DEFINED_SECTION2 *) >InputSection)->DataOffset, >- *OutputBuffer, >- ScratchBuffer, >- 2 >- ); >- } else { >- if (!CompareGuid ( >- &gTianoCustomDecompressGuid, >- &(((EFI_GUID_DEFINED_SECTION *) InputSection)- >>SectionDefinitionGuid))) { >- return RETURN_INVALID_PARAMETER; >- } >- >- // >- // Set Authentication to Zero. >- // >- *AuthenticationStatus = 0; >- >- // >- // Call Tiano Decompress to get the raw data >- // >- return UefiTianoDecompress ( >- (UINT8 *) InputSection + ((EFI_GUID_DEFINED_SECTION *) >InputSection)->DataOffset, >- *OutputBuffer, >- ScratchBuffer, >- 2 >- ); >- } >-} >- >-/** >- Registers TianoDecompress and TianoDecompressGetInfo handlers with >TianoCustomerDecompressGuid >- >- @retval RETURN_SUCCESS Register successfully. >- @retval RETURN_OUT_OF_RESOURCES No enough memory to store this >handler. >-**/ >-RETURN_STATUS >-EFIAPI >-TianoDecompressLibConstructor ( >- VOID >-) >-{ >- return ExtractGuidedSectionRegisterHandlers ( >- &gTianoCustomDecompressGuid, >- TianoDecompressGetInfo, >- TianoDecompress >- ); >-} >diff --git >a/MdeModulePkg/Library/BaseUefiTianoCustomDecompressLib/BaseUefiTia >noCustomDecompressLibInternals.h >b/MdeModulePkg/Library/BaseUefiTianoCustomDecompressLib/BaseUefiTia >noCustomDecompressLibInternals.h >deleted file mode 100644 >index 846abdb78e..0000000000 >--- >a/MdeModulePkg/Library/BaseUefiTianoCustomDecompressLib/BaseUefiTia >noCustomDecompressLibInternals.h >+++ /dev/null >@@ -1,214 +0,0 @@ >-/** @file >- Internal data structure and interfaces defintions for UEFI and Tiano >Decompress Library. >- >- Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR> >- SPDX-License-Identifier: BSD-2-Clause-Patent >- >-**/ >- >-#ifndef __BASE_UEFI_TIANO_CUSTOM_DECOMPRESS_LIB_INTERNALS_H__ >-#define >__BASE_UEFI_TIANO_CUSTOM_DECOMPRESS_LIB_INTERNALS_H__ >- >-#include <PiPei.h> >- >-#include <Guid/TianoDecompress.h> >-#include <Library/BaseLib.h> >-#include <Library/UefiDecompressLib.h> >-#include <Library/DebugLib.h> >-#include <Library/BaseMemoryLib.h> >-#include <Library/ExtractGuidedSectionLib.h> >- >-// >-// Decompression algorithm begins here >-// >-#define BITBUFSIZ 32 >-#define MAXMATCH 256 >-#define THRESHOLD 3 >-#define CODE_BIT 16 >-#define BAD_TABLE - 1 >- >-// >-// C: Char&Len Set; P: Position Set; T: exTra Set >-// >-#define NC (0xff + MAXMATCH + 2 - THRESHOLD) >-#define CBIT 9 >-#define MAXPBIT 5 >-#define TBIT 5 >-#define MAXNP ((1U << MAXPBIT) - 1) >-#define NT (CODE_BIT + 3) >-#if NT > MAXNP >-#define NPT NT >-#else >-#define NPT MAXNP >-#endif >- >-typedef struct { >- UINT8 *mSrcBase; // Starting address of compressed data >- UINT8 *mDstBase; // Starting address of decompressed data >- UINT32 mOutBuf; >- UINT32 mInBuf; >- >- UINT16 mBitCount; >- UINT32 mBitBuf; >- UINT32 mSubBitBuf; >- UINT16 mBlockSize; >- UINT32 mCompSize; >- UINT32 mOrigSize; >- >- UINT16 mBadTableFlag; >- >- UINT16 mLeft[2 * NC - 1]; >- UINT16 mRight[2 * NC - 1]; >- UINT8 mCLen[NC]; >- UINT8 mPTLen[NPT]; >- UINT16 mCTable[4096]; >- UINT16 mPTTable[256]; >- >- /// >- /// The length of the field 'Position Set Code Length Array Size' in Block >Header. >- /// For UEFI 2.0 de/compression algorithm, mPBit = 4 >- /// For Tiano de/compression algorithm, mPBit = 5 >- /// >- UINT8 mPBit; >-} SCRATCH_DATA; >- >-/** >- Read NumOfBit of bits from source into mBitBuf. >- >- Shift mBitBuf NumOfBits left. Read in NumOfBits of bits from source. >- >- @param Sd The global scratch data >- @param NumOfBits The number of bits to shift and read. >- >-**/ >-VOID >-FillBuf ( >- IN SCRATCH_DATA *Sd, >- IN UINT16 NumOfBits >- ); >- >-/** >- Get NumOfBits of bits out from mBitBuf. >- >- Get NumOfBits of bits out from mBitBuf. Fill mBitBuf with subsequent >- NumOfBits of bits from source. Returns NumOfBits of bits that are >- popped out. >- >- @param Sd The global scratch data. >- @param NumOfBits The number of bits to pop and read. >- >- @return The bits that are popped out. >- >-**/ >-UINT32 >-GetBits ( >- IN SCRATCH_DATA *Sd, >- IN UINT16 NumOfBits >- ); >- >-/** >- Creates Huffman Code mapping table according to code length array. >- >- Creates Huffman Code mapping table for Extra Set, Char&Len Set >- and Position Set according to code length array. >- >- @param Sd The global scratch data >- @param NumOfChar Number of symbols in the symbol set >- @param BitLen Code length array >- @param TableBits The width of the mapping table >- @param Table The table to be created. >- >- @retval 0 OK. >- @retval BAD_TABLE The table is corrupted. >- >-**/ >-UINT16 >-MakeTable ( >- IN SCRATCH_DATA *Sd, >- IN UINT16 NumOfChar, >- IN UINT8 *BitLen, >- IN UINT16 TableBits, >- OUT UINT16 *Table >- ); >- >-/** >- Decodes a position value. >- >- Get a position value according to Position Huffman Table. >- >- @param Sd the global scratch data >- >- @return The position value decoded. >- >-**/ >-UINT32 >-DecodeP ( >- IN SCRATCH_DATA *Sd >- ); >- >-/** >- Reads code lengths for the Extra Set or the Position Set. >- >- Read in the Extra Set or Position Set Length Array, then >- generate the Huffman code mapping for them. >- >- @param Sd The global scratch data. >- @param nn Number of symbols. >- @param nbit Number of bits needed to represent nn. >- @param Special The special symbol that needs to be taken care of. >- >- @retval 0 OK. >- @retval BAD_TABLE Table is corrupted. >- >-**/ >-UINT16 >-ReadPTLen ( >- IN SCRATCH_DATA *Sd, >- IN UINT16 nn, >- IN UINT16 nbit, >- IN UINT16 Special >- ); >- >-/** >- Reads code lengths for Char&Len Set. >- >- Read in and decode the Char&Len Set Code Length Array, then >- generate the Huffman Code mapping table for the Char&Len Set. >- >- @param Sd the global scratch data >- >-**/ >-VOID >-ReadCLen ( >- SCRATCH_DATA *Sd >- ); >- >-/** >- Decode a character/length value. >- >- Read one value from mBitBuf, Get one code from mBitBuf. If it is at block >boundary, generates >- Huffman code mapping table for Extra Set, Code&Len Set and >- Position Set. >- >- @param Sd The global scratch data. >- >- @return The value decoded. >- >-**/ >-UINT16 >-DecodeC ( >- SCRATCH_DATA *Sd >- ); >- >-/** >- Decode the source data and put the resulting data into the destination >buffer. >- >- @param Sd The global scratch data >- >-**/ >-VOID >-Decode ( >- SCRATCH_DATA *Sd >- ); >- >-#endif >diff --git >a/MdeModulePkg/Library/BaseUefiTianoCustomDecompressLib/BaseUefiTia >noDecompressLib.uni >b/MdeModulePkg/Library/BaseUefiTianoCustomDecompressLib/BaseUefiTia >noDecompressLib.uni >deleted file mode 100644 >index c384dacbef..0000000000 >--- >a/MdeModulePkg/Library/BaseUefiTianoCustomDecompressLib/BaseUefiTia >noDecompressLib.uni >+++ /dev/null >@@ -1,16 +0,0 @@ >-// /** @file >-// This library instance produces UefiDecompressLib and Tiano Custom >decompression algorithm. >-// >-// Tiano custom decompression algorithm shares most of code with Uefi >Decompress algorithm. >-// >-// Copyright (c) 2006 - 2014, Intel Corporation. All rights reserved.<BR> >-// >-// SPDX-License-Identifier: BSD-2-Clause-Patent >-// >-// **/ >- >- >-#string STR_MODULE_ABSTRACT #language en-US "Produces >UefiDecompressLib and Tiano Custom decompression algorithm" >- >-#string STR_MODULE_DESCRIPTION #language en-US "Tiano custom >decompression algorithm shares most of the code with the UEFI Decompress >algorithm." >- >diff --git a/MdeModulePkg/MdeModulePkg.dec >b/MdeModulePkg/MdeModulePkg.dec >index be84916cc0..1261f80537 100644 >--- a/MdeModulePkg/MdeModulePkg.dec >+++ b/MdeModulePkg/MdeModulePkg.dec >@@ -371,14 +371,10 @@ > ## GUID indicates the LZMA custom compress/decompress algorithm. > # Include/Guid/LzmaDecompress.h > gLzmaCustomDecompressGuid = { 0xEE4E5898, 0x3914, 0x4259, { 0x9D, >0x6E, 0xDC, 0x7B, 0xD7, 0x94, 0x03, 0xCF }} > gLzmaF86CustomDecompressGuid = { 0xD42AE6BD, 0x1352, 0x4bfb, { 0x90, >0x9A, 0xCA, 0x72, 0xA6, 0xEA, 0xE8, 0x89 }} > >- ## GUID indicates the tiano custom compress/decompress algorithm. >- # Include/Guid/TianoDecompress.h >- gTianoCustomDecompressGuid = { 0xA31280AD, 0x481E, 0x41B6, { 0x95, >0xE8, 0x12, 0x7F, 0x4C, 0x98, 0x47, 0x79 }} >- > ## Include/Guid/TtyTerm.h > gEfiTtyTermGuid = { 0x7d916d80, 0x5bb1, 0x458c, {0xa4, 0x8f, 0xe2, >0x5f, 0xdd, 0x51, 0xef, 0x94 }} > > ## Include/Guid/HiiBootMaintenanceFormset.h > gEfiIfrBootMaintenanceGuid = { 0xb2dedc91, 0xd59f, 0x48d2, { 0x89, 0x8a, >0x12, 0x49, 0xc, 0x74, 0xa4, 0xe0 }} >diff --git a/MdeModulePkg/MdeModulePkg.dsc >b/MdeModulePkg/MdeModulePkg.dsc >index b302f4a4f3..0da28e74c2 100644 >--- a/MdeModulePkg/MdeModulePkg.dsc >+++ b/MdeModulePkg/MdeModulePkg.dsc >@@ -311,11 +311,10 @@ > MdeModulePkg/Library/FrameBufferBltLib/FrameBufferBltLib.inf > >MdeModulePkg/Library/NonDiscoverableDeviceRegistrationLib/NonDiscover >ableDeviceRegistrationLib.inf > MdeModulePkg/Library/BaseBmpSupportLib/BaseBmpSupportLib.inf > >MdeModulePkg/Library/DisplayUpdateProgressLibGraphics/DisplayUpdatePr >ogressLibGraphics.inf > >MdeModulePkg/Library/DisplayUpdateProgressLibText/DisplayUpdateProgre >ssLibText.inf >- >MdeModulePkg/Library/BaseUefiTianoCustomDecompressLib/BaseUefiTiano >CustomDecompressLib.inf > > MdeModulePkg/Universal/BdsDxe/BdsDxe.inf > >MdeModulePkg/Application/BootManagerMenuApp/BootManagerMenuAp >p.inf > MdeModulePkg/Application/UiApp/UiApp.inf{ > <LibraryClasses> >diff --git >a/MdeModulePkg/Library/BaseUefiTianoCustomDecompressLib/BaseUefiTia >noCustomDecompressLib.inf >b/MdePkg/Library/BaseUefiDecompressLib/BaseTianoCustomDecompressLib >.inf >similarity index 88% >rename from >MdeModulePkg/Library/BaseUefiTianoCustomDecompressLib/BaseUefiTiano >CustomDecompressLib.inf >rename to >MdePkg/Library/BaseUefiDecompressLib/BaseTianoCustomDecompressLib.in >f >index c9c19d6d3c..5d2b54e2db 100644 >--- >a/MdeModulePkg/Library/BaseUefiTianoCustomDecompressLib/BaseUefiTia >noCustomDecompressLib.inf >+++ >b/MdePkg/Library/BaseUefiDecompressLib/BaseTianoCustomDecompressLib >.inf >@@ -23,16 +23,15 @@ > # > # VALID_ARCHITECTURES = IA32 X64 EBC > # > > [Sources] >- BaseUefiTianoCustomDecompressLibInternals.h >- BaseUefiTianoCustomDecompressLib.c >+ BaseUefiDecompressLibInternals.h >+ BaseUefiDecompressLib.c > > [Packages] > MdePkg/MdePkg.dec >- MdeModulePkg/MdeModulePkg.dec > > [LibraryClasses] > BaseLib > DebugLib > BaseMemoryLib >diff --git >a/MdePkg/Library/BaseUefiDecompressLib/BaseUefiDecompressLib.c >b/MdePkg/Library/BaseUefiDecompressLib/BaseUefiDecompressLib.c >index 8e502b0fdb..c390363d14 100644 >--- a/MdePkg/Library/BaseUefiDecompressLib/BaseUefiDecompressLib.c >+++ b/MdePkg/Library/BaseUefiDecompressLib/BaseUefiDecompressLib.c >@@ -5,16 +5,17 @@ > Portions copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR> > SPDX-License-Identifier: BSD-2-Clause-Patent > > **/ > >- >+#include <PiPei.h> > #include <Base.h> > #include <Library/BaseLib.h> > #include <Library/DebugLib.h> > #include <Library/BaseMemoryLib.h> > #include <Library/UefiDecompressLib.h> >+#include <Library/ExtractGuidedSectionLib.h> > > #include "BaseUefiDecompressLibInternals.h" > > /** > Read NumOfBit of bits from source into mBitBuf. >@@ -747,14 +748,15 @@ UefiDecompressGetInfo ( > The source buffer specified by Source is corrupted > (not in a valid compressed format). > **/ > RETURN_STATUS > EFIAPI >-UefiDecompress ( >+UefiTianoDecompress ( > IN CONST VOID *Source, > IN OUT VOID *Destination, >- IN OUT VOID *Scratch OPTIONAL >+ IN OUT VOID *Scratch, >+ IN UINT32 Version > ) > { > UINT32 CompSize; > UINT32 OrigSize; > SCRATCH_DATA *Sd; >@@ -784,12 +786,22 @@ UefiDecompress ( > SetMem (Sd, sizeof (SCRATCH_DATA), 0); > > // > // The length of the field 'Position Set Code Length Array Size' in Block >Header. > // For UEFI 2.0 de/compression algorithm(Version 1), mPBit = 4 >+ // For Tiano de/compression algorithm(Version 2), mPBit = 5 > // >- Sd->mPBit = 4; >+ switch (Version) { >+ case 1 : >+ Sd->mPBit = 4; >+ break; >+ case 2 : >+ Sd->mPBit = 5; >+ break; >+ default: >+ ASSERT (FALSE); >+ } > Sd->mSrcBase = (UINT8 *)Src; > Sd->mDstBase = Dst; > // > // CompSize and OrigSize are calculated in bytes > // >@@ -813,5 +825,246 @@ UefiDecompress ( > return RETURN_INVALID_PARAMETER; > } > > return RETURN_SUCCESS; > } >+ >+/** >+ Decompresses a UEFI compressed source buffer. >+ >+ Extracts decompressed data to its original form. >+ This function is designed so that the decompression algorithm can be >implemented >+ without using any memory services. As a result, this function is not allowed >to >+ call any memory allocation services in its implementation. It is the caller's >+ responsibility to allocate and free the Destination and Scratch buffers. >+ If the compressed source data specified by Source is successfully >decompressed >+ into Destination, then RETURN_SUCCESS is returned. If the compressed >source data >+ specified by Source is not in a valid compressed data format, >+ then RETURN_INVALID_PARAMETER is returned. >+ >+ If Source is NULL, then ASSERT(). >+ If Destination is NULL, then ASSERT(). >+ If the required scratch buffer size > 0 and Scratch is NULL, then ASSERT(). >+ >+ @param Source The source buffer containing the compressed data. >+ @param Destination The destination buffer to store the decompressed >data >+ @param Scratch A temporary scratch buffer that is used to perform the >decompression. >+ This is an optional parameter that may be NULL if the >+ required scratch buffer size is 0. >+ >+ @retval RETURN_SUCCESS Decompression completed successfully, and >+ the uncompressed buffer is returned in Destination. >+ @retval RETURN_INVALID_PARAMETER >+ The source buffer specified by Source is corrupted >+ (not in a valid compressed format). >+**/ >+RETURN_STATUS >+EFIAPI >+UefiDecompress ( >+ IN CONST VOID *Source, >+ IN OUT VOID *Destination, >+ IN OUT VOID *Scratch OPTIONAL >+ ) >+{ >+ return UefiTianoDecompress (Source, Destination, Scratch, 1); >+} >+ >+/** >+ Examines a GUIDed section and returns the size of the decoded buffer and >the >+ size of an optional scratch buffer required to actually decode the data in a >GUIDed section. >+ >+ Examines a GUIDed section specified by InputSection. >+ If GUID for InputSection does not match the GUID that this handler >supports, >+ then RETURN_UNSUPPORTED is returned. >+ If the required information can not be retrieved from InputSection, >+ then RETURN_INVALID_PARAMETER is returned. >+ If the GUID of InputSection does match the GUID that this handler supports, >+ then the size required to hold the decoded buffer is returned in >OututBufferSize, >+ the size of an optional scratch buffer is returned in ScratchSize, and the >Attributes field >+ from EFI_GUID_DEFINED_SECTION header of InputSection is returned in >SectionAttribute. >+ >+ If InputSection is NULL, then ASSERT(). >+ If OutputBufferSize is NULL, then ASSERT(). >+ If ScratchBufferSize is NULL, then ASSERT(). >+ If SectionAttribute is NULL, then ASSERT(). >+ >+ >+ @param[in] InputSection A pointer to a GUIDed section of an FFS >formatted file. >+ @param[out] OutputBufferSize A pointer to the size, in bytes, of an >output buffer required >+ if the buffer specified by InputSection were decoded. >+ @param[out] ScratchBufferSize A pointer to the size, in bytes, required as >scratch space >+ if the buffer specified by InputSection were decoded. >+ @param[out] SectionAttribute A pointer to the attributes of the GUIDed >section. See the Attributes >+ field of EFI_GUID_DEFINED_SECTION in the PI Specification. >+ >+ @retval RETURN_SUCCESS The information about InputSection was >returned. >+ @retval RETURN_UNSUPPORTED The section specified by InputSection >does not match the GUID this handler supports. >+ @retval RETURN_INVALID_PARAMETER The information can not be >retrieved from the section specified by InputSection. >+ >+**/ >+RETURN_STATUS >+EFIAPI >+TianoDecompressGetInfo ( >+ IN CONST VOID *InputSection, >+ OUT UINT32 *OutputBufferSize, >+ OUT UINT32 *ScratchBufferSize, >+ OUT UINT16 *SectionAttribute >+ ) >+ >+{ >+ ASSERT (SectionAttribute != NULL); >+ >+ if (InputSection == NULL) { >+ return RETURN_INVALID_PARAMETER; >+ } >+ >+ if (IS_SECTION2 (InputSection)) { >+ if (!CompareGuid ( >+ &gTianoCustomDecompressGuid, >+ &(((EFI_GUID_DEFINED_SECTION2 *) InputSection)- >>SectionDefinitionGuid))) { >+ return RETURN_INVALID_PARAMETER; >+ } >+ // >+ // Get guid attribute of guid section. >+ // >+ *SectionAttribute = ((EFI_GUID_DEFINED_SECTION2 *) InputSection)- >>Attributes; >+ >+ // >+ // Call Tiano GetInfo to get the required size info. >+ // >+ return UefiDecompressGetInfo ( >+ (UINT8 *) InputSection + ((EFI_GUID_DEFINED_SECTION2 *) >InputSection)->DataOffset, >+ SECTION2_SIZE (InputSection) - ((EFI_GUID_DEFINED_SECTION2 *) >InputSection)->DataOffset, >+ OutputBufferSize, >+ ScratchBufferSize >+ ); >+ } else { >+ if (!CompareGuid ( >+ &gTianoCustomDecompressGuid, >+ &(((EFI_GUID_DEFINED_SECTION *) InputSection)- >>SectionDefinitionGuid))) { >+ return RETURN_INVALID_PARAMETER; >+ } >+ // >+ // Get guid attribute of guid section. >+ // >+ *SectionAttribute = ((EFI_GUID_DEFINED_SECTION *) InputSection)- >>Attributes; >+ >+ // >+ // Call Tiano GetInfo to get the required size info. >+ // >+ return UefiDecompressGetInfo ( >+ (UINT8 *) InputSection + ((EFI_GUID_DEFINED_SECTION *) >InputSection)->DataOffset, >+ SECTION_SIZE (InputSection) - ((EFI_GUID_DEFINED_SECTION *) >InputSection)->DataOffset, >+ OutputBufferSize, >+ ScratchBufferSize >+ ); >+ } >+} >+ >+/** >+ Decompress a Tiano compressed GUIDed section into a caller allocated >output buffer. >+ >+ Decodes the GUIDed section specified by InputSection. >+ If GUID for InputSection does not match the GUID that this handler >supports, then RETURN_UNSUPPORTED is returned. >+ If the data in InputSection can not be decoded, then >RETURN_INVALID_PARAMETER is returned. >+ If the GUID of InputSection does match the GUID that this handler supports, >then InputSection >+ is decoded into the buffer specified by OutputBuffer and the >authentication status of this >+ decode operation is returned in AuthenticationStatus. If the decoded >buffer is identical to the >+ data in InputSection, then OutputBuffer is set to point at the data in >InputSection. Otherwise, >+ the decoded data will be placed in caller allocated buffer specified by >OutputBuffer. >+ >+ If InputSection is NULL, then ASSERT(). >+ If OutputBuffer is NULL, then ASSERT(). >+ If ScratchBuffer is NULL and this decode operation requires a scratch buffer, >then ASSERT(). >+ If AuthenticationStatus is NULL, then ASSERT(). >+ >+ >+ @param[in] InputSection A pointer to a GUIDed section of an FFS >formatted file. >+ @param[out] OutputBuffer A pointer to a buffer that contains the result of >a decode operation. >+ @param[in] ScratchBuffer A caller allocated buffer that may be required by >this function >+ as a scratch buffer to perform the decode operation. >+ @param[out] AuthenticationStatus >+ A pointer to the authentication status of the decoded output >buffer. >+ See the definition of authentication status in the >EFI_PEI_GUIDED_SECTION_EXTRACTION_PPI >+ section of the PI Specification. >EFI_AUTH_STATUS_PLATFORM_OVERRIDE must >+ never be set by this handler. >+ >+ @retval RETURN_SUCCESS The buffer specified by InputSection was >decoded. >+ @retval RETURN_UNSUPPORTED The section specified by InputSection >does not match the GUID this handler supports. >+ @retval RETURN_INVALID_PARAMETER The section specified by >InputSection can not be decoded. >+ >+**/ >+RETURN_STATUS >+EFIAPI >+TianoDecompress ( >+ IN CONST VOID *InputSection, >+ OUT VOID **OutputBuffer, >+ IN VOID *ScratchBuffer, OPTIONAL >+ OUT UINT32 *AuthenticationStatus >+ ) >+{ >+ ASSERT (OutputBuffer != NULL); >+ ASSERT (InputSection != NULL); >+ >+ if (IS_SECTION2 (InputSection)) { >+ if (!CompareGuid ( >+ &gTianoCustomDecompressGuid, >+ &(((EFI_GUID_DEFINED_SECTION2 *) InputSection)- >>SectionDefinitionGuid))) { >+ return RETURN_INVALID_PARAMETER; >+ } >+ >+ // >+ // Set Authentication to Zero. >+ // >+ *AuthenticationStatus = 0; >+ >+ // >+ // Call Tiano Decompress to get the raw data >+ // >+ return UefiTianoDecompress ( >+ (UINT8 *) InputSection + ((EFI_GUID_DEFINED_SECTION2 *) >InputSection)->DataOffset, >+ *OutputBuffer, >+ ScratchBuffer, >+ 2 >+ ); >+ } else { >+ if (!CompareGuid ( >+ &gTianoCustomDecompressGuid, >+ &(((EFI_GUID_DEFINED_SECTION *) InputSection)- >>SectionDefinitionGuid))) { >+ return RETURN_INVALID_PARAMETER; >+ } >+ >+ // >+ // Set Authentication to Zero. >+ // >+ *AuthenticationStatus = 0; >+ >+ // >+ // Call Tiano Decompress to get the raw data >+ // >+ return UefiTianoDecompress ( >+ (UINT8 *) InputSection + ((EFI_GUID_DEFINED_SECTION *) >InputSection)->DataOffset, >+ *OutputBuffer, >+ ScratchBuffer, >+ 2 >+ ); >+ } >+} >+ >+/** >+ Registers TianoDecompress and TianoDecompressGetInfo handlers with >TianoCustomerDecompressGuid >+ >+ @retval RETURN_SUCCESS Register successfully. >+ @retval RETURN_OUT_OF_RESOURCES No enough memory to store this >handler. >+**/ >+RETURN_STATUS >+EFIAPI >+TianoDecompressLibConstructor ( >+ VOID >+) >+{ >+ return ExtractGuidedSectionRegisterHandlers ( >+ &gTianoCustomDecompressGuid, >+ TianoDecompressGetInfo, >+ TianoDecompress >+ ); >+} >diff --git >a/MdePkg/Library/BaseUefiDecompressLib/BaseUefiDecompressLib.inf >b/MdePkg/Library/BaseUefiDecompressLib/BaseUefiDecompressLib.inf >index 356c39a4fe..b25680adc5 100644 >--- a/MdePkg/Library/BaseUefiDecompressLib/BaseUefiDecompressLib.inf >+++ b/MdePkg/Library/BaseUefiDecompressLib/BaseUefiDecompressLib.inf >@@ -34,5 +34,7 @@ > [LibraryClasses] > BaseLib > DebugLib > BaseMemoryLib > >+[Guids] >+ gTianoCustomDecompressGuid ## PRODUCES ## UNDEFINED # specifies >tiano custom decompress algorithm. >diff --git >a/MdePkg/Library/BaseUefiDecompressLib/BaseUefiDecompressLib.uni >b/MdePkg/Library/BaseUefiDecompressLib/BaseUefiDecompressLib.uni >index 1cec6bd965..25f379d047 100644 >--- a/MdePkg/Library/BaseUefiDecompressLib/BaseUefiDecompressLib.uni >+++ b/MdePkg/Library/BaseUefiDecompressLib/BaseUefiDecompressLib.uni >@@ -1,16 +1,16 @@ > // /** @file > // UEFI Decompress Library implementation. > // > // UEFI Decompress Library implementation. > // >-// Copyright (c) 2007 - 2014, Intel Corporation. All rights reserved.<BR> >+// Copyright (c) 2007 - 2019, Intel Corporation. All rights reserved.<BR> > // > // SPDX-License-Identifier: BSD-2-Clause-Patent > // > // **/ > > >-#string STR_MODULE_ABSTRACT #language en-US "UEFI Decompress >Library implementation" >+#string STR_MODULE_ABSTRACT #language en-US "UEFI Decompress >Library and Tiano Custom Decompress Library implementation." > >-#string STR_MODULE_DESCRIPTION #language en-US "UEFI Decompress >Library implementation." >+#string STR_MODULE_DESCRIPTION #language en-US "Tiano custom >decompression algorithm shares most of the code with the UEFI Decompress >algorithm." > >diff --git a/MdePkg/MdePkg.dec b/MdePkg/MdePkg.dec >index e2ea8fff66..4344ea3594 100644 >--- a/MdePkg/MdePkg.dec >+++ b/MdePkg/MdePkg.dec >@@ -759,10 +759,15 @@ > # GUID defined in Windows UEFI Firmware Update Platform doc > # > ## Include/IndustryStandard/WindowsUxCapsule.h > gWindowsUxCapsuleGuid = { 0x3b8c8162, 0x188c, 0x46a4, { 0xae, 0xc9, >0xbe, 0x43, 0xf1, 0xd6, 0x56, 0x97}} > >+ # >+ # GUID indicates the tiano custom compress/decompress algorithm. >+ # >+ gTianoCustomDecompressGuid = { 0xA31280AD, 0x481E, 0x41B6, { 0x95, >0xE8, 0x12, 0x7F, 0x4C, 0x98, 0x47, 0x79 }} >+ > [Guids.IA32, Guids.X64] > ## Include/Guid/Cper.h > gEfiIa32X64ErrorTypeCacheCheckGuid = { 0xA55701F5, 0xE3EF, 0x43de, >{ 0xAC, 0x72, 0x24, 0x9B, 0x57, 0x3F, 0xAD, 0x2C }} > > ## Include/Guid/Cper.h >diff --git a/MdePkg/MdePkg.dsc b/MdePkg/MdePkg.dsc >index 21743e384c..dbc24a297e 100644 >--- a/MdePkg/MdePkg.dsc >+++ b/MdePkg/MdePkg.dsc >@@ -55,10 +55,11 @@ > >MdePkg/Library/BaseReportStatusCodeLibNull/BaseReportStatusCodeLibNull >.inf > MdePkg/Library/BaseSerialPortLibNull/BaseSerialPortLibNull.inf > MdePkg/Library/BaseSynchronizationLib/BaseSynchronizationLib.inf > MdePkg/Library/BaseTimerLibNullTemplate/BaseTimerLibNullTemplate.inf > MdePkg/Library/BaseUefiDecompressLib/BaseUefiDecompressLib.inf >+ >MdePkg/Library/BaseUefiDecompressLib/BaseTianoCustomDecompressLib.in >f > MdePkg/Library/BaseSmbusLibNull/BaseSmbusLibNull.inf > MdePkg/Library/BaseSafeIntLib/BaseSafeIntLib.inf > > MdePkg/Library/DxeCoreEntryPoint/DxeCoreEntryPoint.inf > MdePkg/Library/DxeCoreHobLib/DxeCoreHobLib.inf >-- >2.18.0.windows.1 ^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2019-05-05 5:26 UTC | newest] Thread overview: 5+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 2019-04-30 8:58 [RFC] [patch] Merge MdeModulePkg\BaseTianoCustomDecompressLib into MdePkg\BaseUefiDecompressLib Dandan Bi 2019-04-30 21:35 ` Leif Lindholm 2019-05-01 23:46 ` [edk2-devel] " Dandan Bi 2019-05-02 9:20 ` Leif Lindholm 2019-05-05 5:26 ` Liming Gao
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