mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-09-19 19:23:21 +09:00
f68ab43de6
The Linux kernel build system changed how it compresses things with LZMA such that the header no longer contains the filesize (it is instead set to all F's). So if we get a LZMA image that has -1 for the 64bit field, let's just assume that the decompressed size is unknown and continue on. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
134 lines
4.0 KiB
C
134 lines
4.0 KiB
C
/*
|
|
* Usefuls routines based on the LzmaTest.c file from LZMA SDK 4.65
|
|
*
|
|
* Copyright (C) 2007-2009 Industrie Dial Face S.p.A.
|
|
* Luigi 'Comio' Mantellini (luigi.mantellini@idf-hit.com)
|
|
*
|
|
* Copyright (C) 1999-2005 Igor Pavlov
|
|
*
|
|
* See file CREDITS for list of people who contributed to this
|
|
* project.
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License as
|
|
* published by the Free Software Foundation; either version 2 of
|
|
* the License, or (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
|
|
* MA 02111-1307 USA
|
|
*/
|
|
|
|
/*
|
|
* LZMA_Alone stream format:
|
|
*
|
|
* uchar Properties[5]
|
|
* uint64 Uncompressed size
|
|
* uchar data[*]
|
|
*
|
|
*/
|
|
|
|
#include <config.h>
|
|
#include <common.h>
|
|
#include <watchdog.h>
|
|
|
|
#ifdef CONFIG_LZMA
|
|
|
|
#define LZMA_PROPERTIES_OFFSET 0
|
|
#define LZMA_SIZE_OFFSET LZMA_PROPS_SIZE
|
|
#define LZMA_DATA_OFFSET LZMA_SIZE_OFFSET+sizeof(uint64_t)
|
|
|
|
#include "LzmaTools.h"
|
|
#include "LzmaDec.h"
|
|
|
|
#include <linux/string.h>
|
|
#include <malloc.h>
|
|
|
|
static void *SzAlloc(void *p, size_t size) { p = p; return malloc(size); }
|
|
static void SzFree(void *p, void *address) { p = p; free(address); }
|
|
|
|
int lzmaBuffToBuffDecompress (unsigned char *outStream, SizeT *uncompressedSize,
|
|
unsigned char *inStream, SizeT length)
|
|
{
|
|
int res = SZ_ERROR_DATA;
|
|
int i;
|
|
ISzAlloc g_Alloc;
|
|
|
|
SizeT outSizeFull = 0xFFFFFFFF; /* 4GBytes limit */
|
|
SizeT outProcessed;
|
|
SizeT outSize;
|
|
SizeT outSizeHigh;
|
|
ELzmaStatus state;
|
|
SizeT compressedSize = (SizeT)(length - LZMA_PROPS_SIZE);
|
|
|
|
debug ("LZMA: Image address............... 0x%lx\n", inStream);
|
|
debug ("LZMA: Properties address.......... 0x%lx\n", inStream + LZMA_PROPERTIES_OFFSET);
|
|
debug ("LZMA: Uncompressed size address... 0x%lx\n", inStream + LZMA_SIZE_OFFSET);
|
|
debug ("LZMA: Compressed data address..... 0x%lx\n", inStream + LZMA_DATA_OFFSET);
|
|
debug ("LZMA: Destination address......... 0x%lx\n", outStream);
|
|
|
|
memset(&state, 0, sizeof(state));
|
|
|
|
outSize = 0;
|
|
outSizeHigh = 0;
|
|
/* Read the uncompressed size */
|
|
for (i = 0; i < 8; i++) {
|
|
unsigned char b = inStream[LZMA_SIZE_OFFSET + i];
|
|
if (i < 4) {
|
|
outSize += (UInt32)(b) << (i * 8);
|
|
} else {
|
|
outSizeHigh += (UInt32)(b) << ((i - 4) * 8);
|
|
}
|
|
}
|
|
|
|
outSizeFull = (SizeT)outSize;
|
|
if (sizeof(SizeT) >= 8) {
|
|
/*
|
|
* SizeT is a 64 bit uint => We can manage files larger than 4GB!
|
|
*
|
|
*/
|
|
outSizeFull |= (((SizeT)outSizeHigh << 16) << 16);
|
|
} else if (outSizeHigh != 0 || (UInt32)(SizeT)outSize != outSize) {
|
|
/*
|
|
* SizeT is a 32 bit uint => We cannot manage files larger than
|
|
* 4GB! Assume however that all 0xf values is "unknown size" and
|
|
* not actually a file of 2^64 bits.
|
|
*
|
|
*/
|
|
if (outSizeHigh != (SizeT)-1 || outSize != (SizeT)-1) {
|
|
debug ("LZMA: 64bit support not enabled.\n");
|
|
return SZ_ERROR_DATA;
|
|
}
|
|
}
|
|
|
|
debug ("LZMA: Uncompresed size............ 0x%lx\n", outSizeFull);
|
|
debug ("LZMA: Compresed size.............. 0x%lx\n", compressedSize);
|
|
|
|
g_Alloc.Alloc = SzAlloc;
|
|
g_Alloc.Free = SzFree;
|
|
|
|
/* Decompress */
|
|
outProcessed = outSizeFull;
|
|
|
|
WATCHDOG_RESET();
|
|
|
|
res = LzmaDecode(
|
|
outStream, &outProcessed,
|
|
inStream + LZMA_DATA_OFFSET, &compressedSize,
|
|
inStream, LZMA_PROPS_SIZE, LZMA_FINISH_ANY, &state, &g_Alloc);
|
|
*uncompressedSize = outProcessed;
|
|
if (res != SZ_OK) {
|
|
return res;
|
|
}
|
|
|
|
return res;
|
|
}
|
|
|
|
#endif
|