mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-21 18:53:06 +00:00
ccfc9d7841
This should use a const pointer for the input stream. Fix this and also add a proper comment. Signed-off-by: Simon Glass <sjg@chromium.org>
124 lines
3.5 KiB
C
124 lines
3.5 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* 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
|
|
*/
|
|
|
|
/*
|
|
* LZMA_Alone stream format:
|
|
*
|
|
* uchar Properties[5]
|
|
* uint64 Uncompressed size
|
|
* uchar data[*]
|
|
*
|
|
*/
|
|
|
|
#include <config.h>
|
|
#include <common.h>
|
|
#include <log.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) { return malloc(size); }
|
|
static void SzFree(void *p, void *address) { free(address); }
|
|
|
|
int lzmaBuffToBuffDecompress(unsigned char *outStream, SizeT *uncompressedSize,
|
|
const 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%p\n", inStream);
|
|
debug ("LZMA: Properties address.......... 0x%p\n", inStream + LZMA_PROPERTIES_OFFSET);
|
|
debug ("LZMA: Uncompressed size address... 0x%p\n", inStream + LZMA_SIZE_OFFSET);
|
|
debug ("LZMA: Compressed data address..... 0x%p\n", inStream + LZMA_DATA_OFFSET);
|
|
debug ("LZMA: Destination address......... 0x%p\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%zx\n", outSizeFull);
|
|
debug("LZMA: Compresed size.............. 0x%zx\n", compressedSize);
|
|
|
|
g_Alloc.Alloc = SzAlloc;
|
|
g_Alloc.Free = SzFree;
|
|
|
|
/* Short-circuit early if we know the buffer can't hold the results. */
|
|
if (outSizeFull != (SizeT)-1 && *uncompressedSize < outSizeFull)
|
|
return SZ_ERROR_OUTPUT_EOF;
|
|
|
|
/* Decompress */
|
|
outProcessed = min(outSizeFull, *uncompressedSize);
|
|
|
|
WATCHDOG_RESET();
|
|
|
|
res = LzmaDecode(
|
|
outStream, &outProcessed,
|
|
inStream + LZMA_DATA_OFFSET, &compressedSize,
|
|
inStream, LZMA_PROPS_SIZE, LZMA_FINISH_END, &state, &g_Alloc);
|
|
*uncompressedSize = outProcessed;
|
|
|
|
debug("LZMA: Uncompressed ............... 0x%zx\n", outProcessed);
|
|
|
|
if (res != SZ_OK) {
|
|
return res;
|
|
}
|
|
|
|
return res;
|
|
}
|
|
|
|
#endif
|