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author | 2023-10-10 14:33:42 +0000 | |
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committer | 2023-10-10 14:33:42 +0000 | |
commit | af1a266670d040d2f4083ff309d732d648afba2a (patch) | |
tree | 2fc46203448ddcc6f81546d379abfaeb323575e9 /roms/u-boot/lib/lzma/LzmaTools.c | |
parent | e02cda008591317b1625707ff8e115a4841aa889 (diff) |
Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec
Diffstat (limited to 'roms/u-boot/lib/lzma/LzmaTools.c')
-rw-r--r-- | roms/u-boot/lib/lzma/LzmaTools.c | 124 |
1 files changed, 124 insertions, 0 deletions
diff --git a/roms/u-boot/lib/lzma/LzmaTools.c b/roms/u-boot/lib/lzma/LzmaTools.c new file mode 100644 index 000000000..521258e62 --- /dev/null +++ b/roms/u-boot/lib/lzma/LzmaTools.c @@ -0,0 +1,124 @@ +// 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, + 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 |