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306bf4e2 | 1 | /** @file\r |
2 | LZMA Decompress routines for edk2\r | |
3 | \r | |
4 | Portions based on LZMA SDK 4.65:\r | |
5 | LzmaUtil.c -- Test application for LZMA compression\r | |
6 | 2008-11-23 : Igor Pavlov : Public domain\r | |
7 | \r | |
8 | Copyright (c) 2006 - 2009, Intel Corporation<BR>\r | |
9 | All rights reserved. This program and the accompanying materials\r | |
10 | are licensed and made available under the terms and conditions of the BSD License\r | |
11 | which accompanies this distribution. The full text of the license may be found at\r | |
12 | http://opensource.org/licenses/bsd-license.php\r | |
13 | \r | |
14 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
15 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
16 | \r | |
17 | **/\r | |
18 | \r | |
19 | #include <Uefi.h>\r | |
20 | #include <Library/BaseLib.h>\r | |
21 | #include <Library/BaseMemoryLib.h>\r | |
22 | #include <Library/DebugLib.h>\r | |
306bf4e2 | 23 | #include <Library/UefiDecompressLib.h>\r |
24 | #include <Library/ExtractGuidedSectionLib.h>\r | |
25 | #include <Guid/LzmaDecompress.h>\r | |
26 | \r | |
27 | #include "Sdk/C/Types.h"\r | |
28 | #include "Sdk/C/7zVersion.h"\r | |
29 | #include "Sdk/C/LzmaDec.h"\r | |
30 | \r | |
57cca89e | 31 | //\r |
32 | // Global data\r | |
33 | //\r | |
34 | \r | |
35 | STATIC CONST VOID *mSourceLastUsedWithGetInfo;\r | |
36 | STATIC UINT32 mSizeOfLastSource;\r | |
37 | STATIC UINT32 mDecompressedSizeForLastSource;\r | |
38 | STATIC VOID *mScratchBuffer;\r | |
39 | STATIC UINTN mScratchBufferSize;\r | |
40 | #define SCRATCH_BUFFER_REQUEST_SIZE SIZE_64KB\r | |
41 | \r | |
19a4a0a0 | 42 | /**\r |
43 | Allocation routine used by LZMA decompression.\r | |
44 | \r | |
45 | @param p Pointer to the ISzAlloc instance\r | |
46 | @param size The size in bytes to be allocated\r | |
47 | \r | |
48 | @return The allocated pointer address, or NULL on failure\r | |
49 | **/\r | |
50 | STATIC\r | |
51 | VOID *\r | |
52 | SzAlloc (\r | |
53 | void *p,\r | |
54 | size_t size\r | |
55 | )\r | |
56 | {\r | |
57cca89e | 57 | VOID *addr;\r |
58 | \r | |
59 | if (mScratchBufferSize >= size) {\r | |
60 | addr = mScratchBuffer;\r | |
61 | mScratchBuffer = (VOID*) ((UINT8*)addr + size);\r | |
62 | mScratchBufferSize -= size;\r | |
63 | return addr;\r | |
64 | } else {\r | |
65 | ASSERT (FALSE);\r | |
66 | return NULL;\r | |
67 | }\r | |
19a4a0a0 | 68 | }\r |
69 | \r | |
70 | /**\r | |
71 | Free routine used by LZMA decompression.\r | |
72 | \r | |
73 | @param p Pointer to the ISzAlloc instance\r | |
74 | @param address The address to be freed\r | |
75 | **/\r | |
76 | STATIC\r | |
77 | VOID\r | |
78 | SzFree (\r | |
79 | void *p,\r | |
80 | void *address\r | |
81 | )\r | |
82 | {\r | |
57cca89e | 83 | //\r |
84 | // We use the 'scratch buffer' for allocations, so there is no free\r | |
85 | // operation required. The scratch buffer will be freed by the caller\r | |
86 | // of the decompression code.\r | |
87 | //\r | |
19a4a0a0 | 88 | }\r |
89 | \r | |
90 | STATIC ISzAlloc g_Alloc = { SzAlloc, SzFree };\r | |
306bf4e2 | 91 | \r |
92 | #define LZMA_HEADER_SIZE (LZMA_PROPS_SIZE + 8)\r | |
93 | \r | |
94 | STATIC\r | |
95 | UINT64\r | |
96 | GetDecodedSizeOfBuf(\r | |
97 | UINT8 *encodedData\r | |
98 | )\r | |
99 | {\r | |
100 | UINT64 DecodedSize;\r | |
101 | INTN Index;\r | |
102 | \r | |
103 | /* Parse header */\r | |
104 | DecodedSize = 0;\r | |
105 | for (Index = LZMA_PROPS_SIZE + 7; Index >= LZMA_PROPS_SIZE; Index--)\r | |
106 | DecodedSize = LShiftU64(DecodedSize, 8) + encodedData[Index];\r | |
107 | \r | |
108 | return DecodedSize;\r | |
109 | }\r | |
110 | \r | |
111 | //\r | |
112 | // LZMA functions and data as defined in local LzmaDecompress.h\r | |
113 | //\r | |
114 | \r | |
306bf4e2 | 115 | /**\r |
116 | The internal implementation of *_DECOMPRESS_PROTOCOL.GetInfo().\r | |
117 | \r | |
118 | @param Source The source buffer containing the compressed data.\r | |
119 | @param SourceSize The size of source buffer\r | |
120 | @param DestinationSize The size of destination buffer.\r | |
121 | @param ScratchSize The size of scratch buffer.\r | |
122 | \r | |
123 | @retval RETURN_SUCCESS - The size of destination buffer and the size of scratch buffer are successull retrieved.\r | |
124 | @retval RETURN_INVALID_PARAMETER - The source data is corrupted\r | |
125 | **/\r | |
126 | RETURN_STATUS\r | |
127 | EFIAPI\r | |
128 | LzmaUefiDecompressGetInfo (\r | |
129 | IN CONST VOID *Source,\r | |
130 | IN UINT32 SourceSize,\r | |
131 | OUT UINT32 *DestinationSize,\r | |
132 | OUT UINT32 *ScratchSize\r | |
133 | )\r | |
134 | {\r | |
135 | UInt64 DecodedSize;\r | |
136 | \r | |
137 | ASSERT(SourceSize >= LZMA_HEADER_SIZE);\r | |
138 | \r | |
139 | DecodedSize = GetDecodedSizeOfBuf((UINT8*)Source);\r | |
140 | \r | |
141 | mSourceLastUsedWithGetInfo = Source;\r | |
142 | mSizeOfLastSource = SourceSize;\r | |
143 | mDecompressedSizeForLastSource = (UInt32)DecodedSize;\r | |
144 | *DestinationSize = mDecompressedSizeForLastSource;\r | |
57cca89e | 145 | *ScratchSize = SCRATCH_BUFFER_REQUEST_SIZE;\r |
306bf4e2 | 146 | return RETURN_SUCCESS;\r |
147 | }\r | |
148 | \r | |
149 | \r | |
150 | /**\r | |
151 | The internal implementation of *_DECOMPRESS_PROTOCOL.Decompress().\r | |
152 | \r | |
153 | @param Source - The source buffer containing the compressed data.\r | |
154 | @param Destination - The destination buffer to store the decompressed data\r | |
155 | @param Scratch - The buffer used internally by the decompress routine. This buffer is needed to store intermediate data.\r | |
156 | \r | |
157 | @retval RETURN_SUCCESS - Decompression is successfull\r | |
158 | @retval RETURN_INVALID_PARAMETER - The source data is corrupted \r | |
159 | **/\r | |
160 | RETURN_STATUS\r | |
161 | EFIAPI\r | |
162 | LzmaUefiDecompress (\r | |
163 | IN CONST VOID *Source,\r | |
164 | IN OUT VOID *Destination,\r | |
165 | IN OUT VOID *Scratch\r | |
166 | )\r | |
167 | {\r | |
168 | SRes lzmaResult;\r | |
169 | ELzmaStatus status;\r | |
170 | SizeT decodedBufSize;\r | |
171 | SizeT encodedDataSize;\r | |
172 | \r | |
173 | if (Source != mSourceLastUsedWithGetInfo) {\r | |
174 | return RETURN_INVALID_PARAMETER;\r | |
175 | }\r | |
176 | \r | |
177 | decodedBufSize = (SizeT)mDecompressedSizeForLastSource;\r | |
178 | encodedDataSize = (SizeT)(mSizeOfLastSource - LZMA_HEADER_SIZE);\r | |
179 | \r | |
57cca89e | 180 | mScratchBuffer = Scratch;\r |
181 | mScratchBufferSize = SCRATCH_BUFFER_REQUEST_SIZE;\r | |
182 | \r | |
306bf4e2 | 183 | lzmaResult = LzmaDecode(\r |
184 | Destination,\r | |
185 | &decodedBufSize,\r | |
186 | (Byte*)((UINT8*)Source + LZMA_HEADER_SIZE),\r | |
187 | &encodedDataSize,\r | |
188 | Source,\r | |
189 | LZMA_PROPS_SIZE,\r | |
190 | LZMA_FINISH_END,\r | |
191 | &status,\r | |
192 | &g_Alloc\r | |
193 | );\r | |
194 | \r | |
195 | if (lzmaResult == SZ_OK) {\r | |
196 | return RETURN_SUCCESS;\r | |
197 | } else {\r | |
198 | return RETURN_INVALID_PARAMETER;\r | |
199 | }\r | |
200 | }\r | |
201 | \r |