1 /******************************************************************************
3 ** FILE NAME : LzmaWrapper.c
4 ** PROJECT : bootloader
9 ** DESCRIPTION : LZMA decoder support for U-boot 1.1.5
10 ** COPYRIGHT : Copyright (c) 2006
11 ** Infineon Technologies AG
12 ** Am Campeon 1-12, 85579 Neubiberg, Germany
14 ** This program is free software; you can redistribute it and/or modify
15 ** it under the terms of the GNU General Public License as published by
16 ** the Free Software Foundation; either version 2 of the License, or
17 ** (at your option) any later version.
20 ** $Date $Author $Comment
21 ** 2 Nov 2006 Lin Mars init version which derived from LzmaTest.c from
23 ** 24 May 2007 Lin Mars Fix issue for multiple lzma_inflate involved
24 *******************************************************************************/
29 #include "LzmaDecode.h"
30 #include "LzmaWrapper.h"
32 #if defined(DEBUG_ENABLE_BOOTSTRAP_PRINTF) || !defined(CFG_BOOTSTRAP_CODE)
33 static const char *kCantReadMessage = "Can not read from source buffer";
34 static const char *kCantAllocateMessage = "Not enough buffer for decompression";
37 static size_t rpos=0, dpos=0;
39 static int MyReadFileAndCheck(unsigned char *src, void *dest, size_t size)
43 memcpy(dest, src + rpos, size);
48 int lzma_inflate(unsigned char *source, int s_len, unsigned char *dest, int *d_len)
50 /* We use two 32-bit integers to construct 64-bit integer for file size.
51 You can remove outSizeHigh, if you don't need >= 4GB supporting,
52 or you can use UInt64 outSize, if your compiler supports 64-bit integers*/
54 UInt32 outSizeHigh = 0;
56 unsigned char *outStream;
59 /* waitEOS = 1, if there is no uncompressed size in headers,
60 so decoder will wait EOS (End of Stream Marker) in compressed stream */
63 unsigned char *inStream;
65 CLzmaDecoderState state; /* it's about 24-80 bytes structure, if int is 32-bit */
66 unsigned char properties[LZMA_PROPERTIES_SIZE];
72 if (sizeof(UInt32) < 4)
74 #if defined(DEBUG_ENABLE_BOOTSTRAP_PRINTF) || !defined(CFG_BOOTSTRAP_CODE)
75 printf("LZMA decoder needs correct UInt32\n");
77 return LZMA_RESULT_DATA_ERROR;
82 if ((long)(SizeT)length != length)
84 #if defined(DEBUG_ENABLE_BOOTSTRAP_PRINTF) || !defined(CFG_BOOTSTRAP_CODE)
85 printf("Too big compressed stream\n");
87 return LZMA_RESULT_DATA_ERROR;
89 compressedSize = (SizeT)(length - (LZMA_PROPERTIES_SIZE + 8));
92 /* Read LZMA properties for compressed stream */
94 if (!MyReadFileAndCheck(source, properties, sizeof(properties)))
96 #if defined(DEBUG_ENABLE_BOOTSTRAP_PRINTF) || !defined(CFG_BOOTSTRAP_CODE)
97 printf("%s\n", kCantReadMessage);
99 return LZMA_RESULT_DATA_ERROR;
102 /* Read uncompressed size */
105 for (i = 0; i < 8; i++)
108 if (!MyReadFileAndCheck(source, &b, 1))
110 #if defined(DEBUG_ENABLE_BOOTSTRAP_PRINTF) || !defined(CFG_BOOTSTRAP_CODE)
111 printf("%s\n", kCantReadMessage);
113 return LZMA_RESULT_DATA_ERROR;
118 outSize += (UInt32)(b) << (i * 8);
120 outSizeHigh += (UInt32)(b) << ((i - 4) * 8);
125 #if defined(DEBUG_ENABLE_BOOTSTRAP_PRINTF) || !defined(CFG_BOOTSTRAP_CODE)
126 printf("Stream with EOS marker is not supported");
128 return LZMA_RESULT_DATA_ERROR;
130 outSizeFull = (SizeT)outSize;
131 if (sizeof(SizeT) >= 8)
132 outSizeFull |= (((SizeT)outSizeHigh << 16) << 16);
133 else if (outSizeHigh != 0 || (UInt32)(SizeT)outSize != outSize)
135 #if defined(DEBUG_ENABLE_BOOTSTRAP_PRINTF) || !defined(CFG_BOOTSTRAP_CODE)
136 printf("Too big uncompressed stream");
138 return LZMA_RESULT_DATA_ERROR;
142 /* Decode LZMA properties and allocate memory */
143 if (LzmaDecodeProperties(&state.Properties, properties, LZMA_PROPERTIES_SIZE) != LZMA_RESULT_OK)
145 #if defined(DEBUG_ENABLE_BOOTSTRAP_PRINTF) || !defined(CFG_BOOTSTRAP_CODE)
146 printf("Incorrect stream properties");
148 return LZMA_RESULT_DATA_ERROR;
150 state.Probs = (CProb *)malloc(LzmaGetNumProbs(&state.Properties) * sizeof(CProb));
152 if (outSizeFull == 0)
156 if (outSizeFull > d_len)
162 if (compressedSize == 0)
166 if ((compressedSize+rpos) > s_len )
169 inStream = source + rpos;
173 || (outStream == 0 && outSizeFull != 0)
174 || (inStream == 0 && compressedSize != 0)
178 #if defined(DEBUG_ENABLE_BOOTSTRAP_PRINTF) || !defined(CFG_BOOTSTRAP_CODE)
179 printf("%s\n", kCantAllocateMessage);
181 return LZMA_RESULT_DATA_ERROR;
188 res = LzmaDecode(&state,
189 inStream, compressedSize, &inProcessed,
190 outStream, outSizeFull, &outProcessed);
193 #if defined(DEBUG_ENABLE_BOOTSTRAP_PRINTF) || !defined(CFG_BOOTSTRAP_CODE)
194 printf("\nDecoding error = %d\n", res);
200 *d_len = outProcessed;