]>
Commit | Line | Data |
---|---|---|
306bf4e2 | 1 | /** @file\r |
2 | LZMA Decompress GUIDed Section Extraction Library\r | |
3 | \r | |
4 | Copyright (c) 2006 - 2009, Intel Corporation<BR>\r | |
5 | All rights reserved. This program and the accompanying materials\r | |
6 | are licensed and made available under the terms and conditions of the BSD License\r | |
7 | which accompanies this distribution. The full text of the license may be found at\r | |
8 | http://opensource.org/licenses/bsd-license.php\r | |
9 | \r | |
10 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
11 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
12 | \r | |
13 | **/\r | |
14 | \r | |
15 | #include <Uefi.h>\r | |
16 | #include <Library/BaseMemoryLib.h>\r | |
17 | #include <Library/MemoryAllocationLib.h>\r | |
18 | #include <Library/ExtractGuidedSectionLib.h>\r | |
19 | #include <Pi/PiFirmwareFile.h>\r | |
20 | #include <Guid/LzmaDecompress.h>\r | |
21 | \r | |
22 | #include "LzmaDecompress.h"\r | |
23 | \r | |
24 | \r | |
25 | STATIC\r | |
26 | RETURN_STATUS\r | |
27 | EFIAPI\r | |
28 | LzmaGuidedSectionGetCompressedLocation (\r | |
29 | IN CONST VOID *InputSection,\r | |
30 | OUT VOID **LmzaCompressedData,\r | |
31 | OUT UINT32 *LmzaCompressedDataSize OPTIONAL\r | |
32 | )\r | |
33 | {\r | |
34 | if (!CompareGuid (\r | |
35 | &gLzmaCustomDecompressGuid, \r | |
36 | &(((EFI_GUID_DEFINED_SECTION *) InputSection)->SectionDefinitionGuid))) {\r | |
37 | return RETURN_INVALID_PARAMETER;\r | |
38 | }\r | |
39 | \r | |
40 | //\r | |
41 | // Retrieve the size and attribute of the input section data.\r | |
42 | //\r | |
43 | *LmzaCompressedData =\r | |
44 | (VOID*) (\r | |
45 | (UINT8 *) InputSection +\r | |
46 | ((EFI_GUID_DEFINED_SECTION *) InputSection)->DataOffset\r | |
47 | );\r | |
48 | if (LmzaCompressedDataSize != NULL) {\r | |
49 | *LmzaCompressedDataSize =\r | |
50 | (UINT32)(\r | |
51 | (\r | |
52 | (*(UINT32 *) (((EFI_COMMON_SECTION_HEADER *) InputSection)->Size)) &\r | |
53 | 0x00ffffff\r | |
54 | ) -\r | |
55 | ((EFI_GUID_DEFINED_SECTION *) InputSection)->DataOffset\r | |
56 | );\r | |
57 | }\r | |
58 | \r | |
59 | return RETURN_SUCCESS;\r | |
60 | }\r | |
61 | \r | |
62 | \r | |
63 | /**\r | |
64 | The implementation of 'GetInfo' for Guided Section\r | |
65 | Extraction of LZMA compression.\r | |
66 | \r | |
67 | @param InputSection Buffer containing the input GUIDed section to be processed. \r | |
68 | @param OutputBufferSize The size of OutputBuffer.\r | |
69 | @param ScratchBufferSize The size of ScratchBuffer.\r | |
70 | @param SectionAttribute The attribute of the input guided section.\r | |
71 | \r | |
72 | @retval RETURN_SUCCESS The size of destination buffer and the size of scratch buffer are successull retrieved.\r | |
73 | @retval RETURN_INVALID_PARAMETER The source data is corrupted, or\r | |
74 | The GUID in InputSection does not match this instance guid.\r | |
75 | \r | |
76 | **/\r | |
77 | RETURN_STATUS\r | |
78 | EFIAPI\r | |
79 | LzmaGuidedSectionGetInfo (\r | |
80 | IN CONST VOID *InputSection,\r | |
81 | OUT UINT32 *OutputBufferSize,\r | |
82 | OUT UINT32 *ScratchBufferSize,\r | |
83 | OUT UINT16 *SectionAttribute\r | |
84 | )\r | |
85 | {\r | |
86 | RETURN_STATUS Status;\r | |
87 | VOID *LzmaInput;\r | |
88 | UINT32 LzmaInputSize;\r | |
89 | \r | |
90 | Status = LzmaGuidedSectionGetCompressedLocation(\r | |
91 | InputSection,\r | |
92 | &LzmaInput,\r | |
93 | &LzmaInputSize\r | |
94 | );\r | |
95 | if (RETURN_ERROR (Status)) {\r | |
96 | return Status;\r | |
97 | }\r | |
98 | \r | |
99 | *SectionAttribute = ((EFI_GUID_DEFINED_SECTION *) InputSection)->Attributes;\r | |
100 | \r | |
101 | return LzmaUefiDecompressGetInfo (\r | |
102 | LzmaInput,\r | |
103 | LzmaInputSize,\r | |
104 | OutputBufferSize,\r | |
105 | ScratchBufferSize\r | |
106 | );\r | |
107 | }\r | |
108 | \r | |
109 | /**\r | |
110 | The implementation of Guided Section Extraction\r | |
111 | for LZMA compression.\r | |
112 | \r | |
113 | @param InputSection Buffer containing the input GUIDed section to be processed. \r | |
114 | @param OutputBuffer OutputBuffer to point to the start of the section's contents.\r | |
115 | if guided data is not prcessed. Otherwise,\r | |
116 | OutputBuffer to contain the output data, which is allocated by the caller.\r | |
117 | @param ScratchBuffer A pointer to a caller-allocated buffer for function internal use. \r | |
118 | @param AuthenticationStatus A pointer to a caller-allocated UINT32 that indicates the\r | |
119 | authentication status of the output buffer. \r | |
120 | \r | |
121 | @retval RETURN_SUCCESS Decompression is successfull\r | |
122 | @retval RETURN_INVALID_PARAMETER The source data is corrupted, or\r | |
123 | The GUID in InputSection does not match this instance guid.\r | |
124 | \r | |
125 | **/\r | |
126 | RETURN_STATUS\r | |
127 | EFIAPI\r | |
128 | LzmaGuidedSectionExtraction (\r | |
129 | IN CONST VOID *InputSection,\r | |
130 | OUT VOID **OutputBuffer,\r | |
131 | IN VOID *ScratchBuffer, OPTIONAL\r | |
132 | OUT UINT32 *AuthenticationStatus\r | |
133 | )\r | |
134 | {\r | |
135 | RETURN_STATUS Status;\r | |
136 | VOID *LzmaInput;\r | |
137 | \r | |
138 | Status = LzmaGuidedSectionGetCompressedLocation(\r | |
139 | InputSection,\r | |
140 | &LzmaInput,\r | |
141 | NULL\r | |
142 | );\r | |
143 | if (RETURN_ERROR (Status)) {\r | |
144 | return Status;\r | |
145 | }\r | |
146 | \r | |
147 | //\r | |
148 | // Authentication is set to Zero, which may be ignored.\r | |
149 | //\r | |
150 | *AuthenticationStatus = 0;\r | |
151 | \r | |
152 | return LzmaUefiDecompress (\r | |
153 | LzmaInput,\r | |
154 | *OutputBuffer,\r | |
155 | ScratchBuffer\r | |
156 | );\r | |
157 | }\r | |
158 | \r | |
159 | \r | |
160 | /**\r | |
161 | Register LzmaDecompress handler.\r | |
162 | \r | |
163 | @retval RETURN_SUCCESS Register successfully.\r | |
164 | @retval RETURN_OUT_OF_RESOURCES No enough memory to store this handler.\r | |
165 | **/\r | |
166 | EFI_STATUS\r | |
167 | EFIAPI\r | |
168 | LzmaDecompressLibConstructor (\r | |
169 | )\r | |
170 | {\r | |
171 | return ExtractGuidedSectionRegisterHandlers (\r | |
172 | &gLzmaCustomDecompressGuid,\r | |
173 | LzmaGuidedSectionGetInfo,\r | |
174 | LzmaGuidedSectionExtraction\r | |
175 | ); \r | |
176 | }\r | |
177 | \r |