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878ddf1f | 1 | /*++\r |
2 | \r | |
3 | Copyright (c) 2004, Intel Corporation \r | |
4 | All rights reserved. This program and the accompanying materials \r | |
5 | are licensed and made available under the terms and conditions of the BSD License \r | |
6 | which accompanies this distribution. The full text of the license may be found at \r | |
7 | http://opensource.org/licenses/bsd-license.php \r | |
8 | \r | |
9 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, \r | |
10 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. \r | |
11 | \r | |
12 | Module Name:\r | |
13 | \r | |
14 | GenCRC32Section.c\r | |
15 | \r | |
16 | Abstract:\r | |
17 | \r | |
18 | This file contains functions required to generate a Firmware File System \r | |
19 | file. The code is compliant with the Tiano C Coding standards.\r | |
20 | \r | |
21 | --*/\r | |
22 | \r | |
23 | #include "GenCRC32Section.h"\r | |
24 | \r | |
25 | #define TOOLVERSION "0.2"\r | |
26 | \r | |
27 | #define UTILITY_NAME "GenCrc32Section"\r | |
28 | \r | |
29 | EFI_GUID gEfiCrc32SectionGuid = EFI_CRC32_GUIDED_SECTION_EXTRACTION_PROTOCOL_GUID;\r | |
30 | \r | |
31 | EFI_STATUS\r | |
32 | SignSectionWithCrc32 (\r | |
33 | IN OUT UINT8 *FileBuffer,\r | |
34 | IN OUT UINT32 *BufferSize,\r | |
35 | IN UINT32 DataSize\r | |
36 | )\r | |
37 | /*++\r | |
38 | \r | |
39 | Routine Description:\r | |
40 | \r | |
41 | Signs the section with CRC32 and add GUIDed section header for the \r | |
42 | signed data. data stays in same location (overwrites source data).\r | |
43 | \r | |
44 | Arguments:\r | |
45 | \r | |
46 | FileBuffer - Buffer containing data to sign\r | |
47 | \r | |
48 | BufferSize - On input, the size of FileBuffer. On output, the size of \r | |
49 | actual section data (including added section header). \r | |
50 | \r | |
51 | DataSize - Length of data to Sign\r | |
52 | \r | |
53 | Key - Key to use when signing. Currently only CRC32 is supported.\r | |
54 | \r | |
55 | Returns:\r | |
56 | \r | |
57 | EFI_SUCCESS - Successful\r | |
58 | EFI_OUT_OF_RESOURCES - Not enough resource to complete the operation.\r | |
59 | \r | |
60 | --*/\r | |
61 | {\r | |
62 | \r | |
63 | UINT32 Crc32Checksum;\r | |
64 | EFI_STATUS Status;\r | |
65 | UINT32 TotalSize;\r | |
66 | CRC32_SECTION_HEADER Crc32Header;\r | |
67 | UINT8 *SwapBuffer;\r | |
68 | \r | |
69 | Crc32Checksum = 0;\r | |
70 | SwapBuffer = NULL;\r | |
71 | \r | |
72 | if (DataSize == 0) {\r | |
73 | *BufferSize = 0;\r | |
74 | \r | |
75 | return EFI_SUCCESS;\r | |
76 | }\r | |
77 | \r | |
78 | Status = CalculateCrc32 (FileBuffer, DataSize, &Crc32Checksum);\r | |
79 | if (EFI_ERROR (Status)) {\r | |
80 | return Status;\r | |
81 | }\r | |
82 | \r | |
83 | TotalSize = DataSize + CRC32_SECTION_HEADER_SIZE;\r | |
84 | Crc32Header.GuidSectionHeader.CommonHeader.Type = EFI_SECTION_GUID_DEFINED;\r | |
85 | Crc32Header.GuidSectionHeader.CommonHeader.Size[0] = (UINT8) (TotalSize & 0xff);\r | |
86 | Crc32Header.GuidSectionHeader.CommonHeader.Size[1] = (UINT8) ((TotalSize & 0xff00) >> 8);\r | |
87 | Crc32Header.GuidSectionHeader.CommonHeader.Size[2] = (UINT8) ((TotalSize & 0xff0000) >> 16);\r | |
88 | memcpy (&(Crc32Header.GuidSectionHeader.SectionDefinitionGuid), &gEfiCrc32SectionGuid, sizeof (EFI_GUID));\r | |
89 | Crc32Header.GuidSectionHeader.Attributes = EFI_GUIDED_SECTION_AUTH_STATUS_VALID;\r | |
90 | Crc32Header.GuidSectionHeader.DataOffset = CRC32_SECTION_HEADER_SIZE;\r | |
91 | Crc32Header.CRC32Checksum = Crc32Checksum;\r | |
92 | \r | |
93 | SwapBuffer = (UINT8 *) malloc (DataSize);\r | |
94 | if (SwapBuffer == NULL) {\r | |
95 | return EFI_OUT_OF_RESOURCES;\r | |
96 | }\r | |
97 | \r | |
98 | memcpy (SwapBuffer, FileBuffer, DataSize);\r | |
99 | memcpy (FileBuffer, &Crc32Header, CRC32_SECTION_HEADER_SIZE);\r | |
100 | memcpy (FileBuffer + CRC32_SECTION_HEADER_SIZE, SwapBuffer, DataSize);\r | |
101 | \r | |
102 | //\r | |
103 | // Make sure section ends on a DWORD boundary\r | |
104 | //\r | |
105 | while ((TotalSize & 0x03) != 0) {\r | |
106 | FileBuffer[TotalSize] = 0;\r | |
107 | TotalSize++;\r | |
108 | }\r | |
109 | \r | |
110 | *BufferSize = TotalSize;\r | |
111 | \r | |
112 | if (SwapBuffer != NULL) {\r | |
113 | free (SwapBuffer);\r | |
114 | }\r | |
115 | \r | |
116 | return EFI_SUCCESS;\r | |
117 | }\r | |
118 | \r | |
119 | VOID\r | |
120 | PrintUsage (\r | |
121 | VOID\r | |
122 | )\r | |
123 | {\r | |
124 | printf ("Usage:\n");\r | |
125 | printf (UTILITY_NAME " -i \"inputfile1\" \"inputfile2\" -o \"outputfile\" \n");\r | |
126 | printf (" -i \"inputfile\":\n ");\r | |
127 | printf (" specifies the input files that would be signed to CRC32 Guided section.\n");\r | |
128 | printf (" -o \"outputfile\":\n");\r | |
129 | printf (" specifies the output file that is a CRC32 Guided section.\n");\r | |
130 | }\r | |
131 | \r | |
132 | INT32\r | |
133 | ReadFilesContentsIntoBuffer (\r | |
134 | IN CHAR8 *argv[],\r | |
135 | IN INT32 Start,\r | |
136 | IN OUT UINT8 **FileBuffer,\r | |
137 | IN OUT UINT32 *BufferSize,\r | |
138 | OUT UINT32 *ContentSize,\r | |
139 | IN INT32 MaximumArguments\r | |
140 | )\r | |
141 | {\r | |
142 | INT32 Index;\r | |
143 | CHAR8 *FileName;\r | |
144 | FILE *InputFile;\r | |
145 | UINT8 Temp;\r | |
146 | UINT32 Size;\r | |
147 | \r | |
148 | FileName = NULL;\r | |
149 | InputFile = NULL;\r | |
150 | Size = 0;\r | |
151 | Index = 0;\r | |
152 | \r | |
153 | //\r | |
154 | // read all input files into one file buffer\r | |
155 | //\r | |
156 | while (argv[Start + Index][0] != '-') {\r | |
157 | \r | |
158 | FileName = argv[Start + Index];\r | |
159 | InputFile = fopen (FileName, "rb");\r | |
160 | if (InputFile == NULL) {\r | |
161 | Error (NULL, 0, 0, FileName, "failed to open input binary file");\r | |
162 | return -1;\r | |
163 | }\r | |
164 | \r | |
165 | fread (&Temp, sizeof (UINT8), 1, InputFile);\r | |
166 | while (!feof (InputFile)) {\r | |
167 | (*FileBuffer)[Size++] = Temp;\r | |
168 | fread (&Temp, sizeof (UINT8), 1, InputFile);\r | |
169 | }\r | |
170 | \r | |
171 | fclose (InputFile);\r | |
172 | InputFile = NULL;\r | |
173 | \r | |
174 | //\r | |
175 | // Make sure section ends on a DWORD boundary\r | |
176 | //\r | |
177 | while ((Size & 0x03) != 0) {\r | |
178 | (*FileBuffer)[Size] = 0;\r | |
179 | Size++;\r | |
180 | }\r | |
181 | \r | |
182 | Index++;\r | |
183 | if (Index == MaximumArguments) {\r | |
184 | break;\r | |
185 | }\r | |
186 | }\r | |
187 | \r | |
188 | *ContentSize = Size;\r | |
189 | return Index;\r | |
190 | }\r | |
191 | \r | |
192 | int\r | |
193 | main (\r | |
194 | INT32 argc,\r | |
195 | CHAR8 *argv[]\r | |
196 | )\r | |
197 | {\r | |
198 | FILE *OutputFile;\r | |
199 | UINT8 *FileBuffer;\r | |
200 | UINT32 BufferSize;\r | |
201 | EFI_STATUS Status;\r | |
202 | UINT32 ContentSize;\r | |
203 | CHAR8 *OutputFileName;\r | |
204 | INT32 ReturnValue;\r | |
205 | INT32 Index;\r | |
206 | \r | |
207 | OutputFile = NULL;\r | |
208 | FileBuffer = NULL;\r | |
209 | ContentSize = 0;\r | |
210 | OutputFileName = NULL;\r | |
211 | \r | |
212 | SetUtilityName (UTILITY_NAME);\r | |
213 | \r | |
214 | if (argc == 1) {\r | |
215 | PrintUsage ();\r | |
216 | return -1;\r | |
217 | }\r | |
218 | \r | |
219 | BufferSize = 1024 * 1024 * 16;\r | |
220 | FileBuffer = (UINT8 *) malloc (BufferSize * sizeof (UINT8));\r | |
221 | if (FileBuffer == NULL) {\r | |
222 | Error (NULL, 0, 0, "memory allocation failed", NULL);\r | |
223 | return -1;\r | |
224 | }\r | |
225 | \r | |
226 | ZeroMem (FileBuffer, BufferSize);\r | |
227 | \r | |
228 | for (Index = 0; Index < argc; Index++) {\r | |
229 | if (strcmpi (argv[Index], "-i") == 0) {\r | |
230 | ReturnValue = ReadFilesContentsIntoBuffer (\r | |
231 | argv,\r | |
232 | (Index + 1),\r | |
233 | &FileBuffer,\r | |
234 | &BufferSize,\r | |
235 | &ContentSize,\r | |
236 | (argc - (Index + 1))\r | |
237 | );\r | |
238 | if (ReturnValue == -1) {\r | |
239 | Error (NULL, 0, 0, "failed to read file contents", NULL);\r | |
240 | return -1;\r | |
241 | }\r | |
242 | \r | |
243 | Index += ReturnValue;\r | |
244 | }\r | |
245 | \r | |
246 | if (strcmpi (argv[Index], "-o") == 0) {\r | |
247 | OutputFileName = argv[Index + 1];\r | |
248 | }\r | |
249 | }\r | |
250 | \r | |
251 | OutputFile = fopen (OutputFileName, "wb");\r | |
252 | if (OutputFile == NULL) {\r | |
253 | Error (NULL, 0, 0, OutputFileName, "failed to open output binary file");\r | |
254 | free (FileBuffer);\r | |
255 | return -1;\r | |
256 | }\r | |
257 | \r | |
258 | /* \r | |
259 | //\r | |
260 | // make sure section ends on a DWORD boundary ??\r | |
261 | //\r | |
262 | while ( (Size & 0x03) != 0 ) {\r | |
263 | FileBuffer[Size] = 0;\r | |
264 | Size ++;\r | |
265 | }\r | |
266 | */\r | |
267 | Status = SignSectionWithCrc32 (FileBuffer, &BufferSize, ContentSize);\r | |
268 | if (EFI_ERROR (Status)) {\r | |
269 | Error (NULL, 0, 0, "failed to sign section", NULL);\r | |
270 | free (FileBuffer);\r | |
271 | fclose (OutputFile);\r | |
272 | return -1;\r | |
273 | }\r | |
274 | \r | |
275 | ContentSize = fwrite (FileBuffer, sizeof (UINT8), BufferSize, OutputFile);\r | |
276 | if (ContentSize != BufferSize) {\r | |
277 | Error (NULL, 0, 0, "failed to write output buffer", NULL);\r | |
278 | ReturnValue = -1;\r | |
279 | } else {\r | |
280 | ReturnValue = 0;\r | |
281 | }\r | |
282 | \r | |
283 | free (FileBuffer);\r | |
284 | fclose (OutputFile);\r | |
285 | return ReturnValue;\r | |
286 | }\r |