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Commit | Line | Data |
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e1f414b6 | 1 | /** @file\r |
2 | Utility functions to generate checksum based on 2's complement\r | |
3 | algorithm.\r | |
4 | \r | |
9095d37b | 5 | Copyright (c) 2007 - 2018, Intel Corporation. All rights reserved.<BR>\r |
92288f43 | 6 | Copyright (c) 2022, Pedro Falcato. All rights reserved.<BR>\r |
9344f092 | 7 | SPDX-License-Identifier: BSD-2-Clause-Patent\r |
e1f414b6 | 8 | \r |
e1f414b6 | 9 | **/\r |
10 | \r | |
47fc17d8 | 11 | #include "BaseLibInternals.h"\r |
f734a10a | 12 | \r |
e1f414b6 | 13 | /**\r |
9aa049d9 | 14 | Returns the sum of all elements in a buffer in unit of UINT8.\r |
e1f414b6 | 15 | During calculation, the carry bits are dropped.\r |
16 | \r | |
9aa049d9 | 17 | This function calculates the sum of all elements in a buffer\r |
18 | in unit of UINT8. The carry bits in result of addition are dropped.\r | |
19 | The result is returned as UINT8. If Length is Zero, then Zero is\r | |
e1f414b6 | 20 | returned.\r |
9aa049d9 | 21 | \r |
e1f414b6 | 22 | If Buffer is NULL, then ASSERT().\r |
9aa049d9 | 23 | If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().\r |
e1f414b6 | 24 | \r |
127010dd | 25 | @param Buffer The pointer to the buffer to carry out the sum operation.\r |
9aa049d9 | 26 | @param Length The size, in bytes, of Buffer.\r |
e1f414b6 | 27 | \r |
9aa049d9 | 28 | @return Sum The sum of Buffer with carry bits dropped during additions.\r |
e1f414b6 | 29 | \r |
30 | **/\r | |
31 | UINT8\r | |
32 | EFIAPI\r | |
33 | CalculateSum8 (\r | |
2f88bd3a MK |
34 | IN CONST UINT8 *Buffer,\r |
35 | IN UINTN Length\r | |
e1f414b6 | 36 | )\r |
37 | {\r | |
2f88bd3a MK |
38 | UINT8 Sum;\r |
39 | UINTN Count;\r | |
e1f414b6 | 40 | \r |
41 | ASSERT (Buffer != NULL);\r | |
2f88bd3a | 42 | ASSERT (Length <= (MAX_ADDRESS - ((UINTN)Buffer) + 1));\r |
e1f414b6 | 43 | \r |
44 | for (Sum = 0, Count = 0; Count < Length; Count++) {\r | |
2f88bd3a | 45 | Sum = (UINT8)(Sum + *(Buffer + Count));\r |
e1f414b6 | 46 | }\r |
9095d37b | 47 | \r |
e1f414b6 | 48 | return Sum;\r |
49 | }\r | |
50 | \r | |
e1f414b6 | 51 | /**\r |
9aa049d9 | 52 | Returns the two's complement checksum of all elements in a buffer\r |
e1f414b6 | 53 | of 8-bit values.\r |
54 | \r | |
9aa049d9 | 55 | This function first calculates the sum of the 8-bit values in the\r |
56 | buffer specified by Buffer and Length. The carry bits in the result\r | |
57 | of addition are dropped. Then, the two's complement of the sum is\r | |
e1f414b6 | 58 | returned. If Length is 0, then 0 is returned.\r |
9aa049d9 | 59 | \r |
e1f414b6 | 60 | If Buffer is NULL, then ASSERT().\r |
61 | If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().\r | |
62 | \r | |
127010dd | 63 | @param Buffer The pointer to the buffer to carry out the checksum operation.\r |
1106ffe1 | 64 | @param Length The size, in bytes, of Buffer.\r |
e1f414b6 | 65 | \r |
9aa049d9 | 66 | @return Checksum The 2's complement checksum of Buffer.\r |
e1f414b6 | 67 | \r |
68 | **/\r | |
69 | UINT8\r | |
70 | EFIAPI\r | |
71 | CalculateCheckSum8 (\r | |
2f88bd3a MK |
72 | IN CONST UINT8 *Buffer,\r |
73 | IN UINTN Length\r | |
e1f414b6 | 74 | )\r |
75 | {\r | |
2f88bd3a | 76 | UINT8 CheckSum;\r |
e1f414b6 | 77 | \r |
78 | CheckSum = CalculateSum8 (Buffer, Length);\r | |
79 | \r | |
80 | //\r | |
81 | // Return the checksum based on 2's complement.\r | |
82 | //\r | |
2f88bd3a | 83 | return (UINT8)(0x100 - CheckSum);\r |
e1f414b6 | 84 | }\r |
85 | \r | |
86 | /**\r | |
9aa049d9 | 87 | Returns the sum of all elements in a buffer of 16-bit values. During\r |
e1f414b6 | 88 | calculation, the carry bits are dropped.\r |
89 | \r | |
9aa049d9 | 90 | This function calculates the sum of the 16-bit values in the buffer\r |
91 | specified by Buffer and Length. The carry bits in result of addition are dropped.\r | |
92 | The 16-bit result is returned. If Length is 0, then 0 is returned.\r | |
93 | \r | |
e1f414b6 | 94 | If Buffer is NULL, then ASSERT().\r |
95 | If Buffer is not aligned on a 16-bit boundary, then ASSERT().\r | |
96 | If Length is not aligned on a 16-bit boundary, then ASSERT().\r | |
97 | If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().\r | |
98 | \r | |
127010dd | 99 | @param Buffer The pointer to the buffer to carry out the sum operation.\r |
1106ffe1 | 100 | @param Length The size, in bytes, of Buffer.\r |
e1f414b6 | 101 | \r |
9aa049d9 | 102 | @return Sum The sum of Buffer with carry bits dropped during additions.\r |
e1f414b6 | 103 | \r |
104 | **/\r | |
105 | UINT16\r | |
106 | EFIAPI\r | |
107 | CalculateSum16 (\r | |
2f88bd3a MK |
108 | IN CONST UINT16 *Buffer,\r |
109 | IN UINTN Length\r | |
e1f414b6 | 110 | )\r |
111 | {\r | |
2f88bd3a MK |
112 | UINT16 Sum;\r |
113 | UINTN Count;\r | |
114 | UINTN Total;\r | |
e1f414b6 | 115 | \r |
116 | ASSERT (Buffer != NULL);\r | |
2f88bd3a | 117 | ASSERT (((UINTN)Buffer & 0x1) == 0);\r |
e1f414b6 | 118 | ASSERT ((Length & 0x1) == 0);\r |
2f88bd3a | 119 | ASSERT (Length <= (MAX_ADDRESS - ((UINTN)Buffer) + 1));\r |
e1f414b6 | 120 | \r |
f9cea76b | 121 | Total = Length / sizeof (*Buffer);\r |
122 | for (Sum = 0, Count = 0; Count < Total; Count++) {\r | |
2f88bd3a | 123 | Sum = (UINT16)(Sum + *(Buffer + Count));\r |
e1f414b6 | 124 | }\r |
9095d37b | 125 | \r |
e1f414b6 | 126 | return Sum;\r |
127 | }\r | |
128 | \r | |
e1f414b6 | 129 | /**\r |
9aa049d9 | 130 | Returns the two's complement checksum of all elements in a buffer of\r |
e1f414b6 | 131 | 16-bit values.\r |
132 | \r | |
9aa049d9 | 133 | This function first calculates the sum of the 16-bit values in the buffer\r |
134 | specified by Buffer and Length. The carry bits in the result of addition\r | |
135 | are dropped. Then, the two's complement of the sum is returned. If Length\r | |
e1f414b6 | 136 | is 0, then 0 is returned.\r |
9aa049d9 | 137 | \r |
e1f414b6 | 138 | If Buffer is NULL, then ASSERT().\r |
139 | If Buffer is not aligned on a 16-bit boundary, then ASSERT().\r | |
140 | If Length is not aligned on a 16-bit boundary, then ASSERT().\r | |
9aa049d9 | 141 | If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().\r |
e1f414b6 | 142 | \r |
127010dd | 143 | @param Buffer The pointer to the buffer to carry out the checksum operation.\r |
1106ffe1 | 144 | @param Length The size, in bytes, of Buffer.\r |
e1f414b6 | 145 | \r |
9aa049d9 | 146 | @return Checksum The 2's complement checksum of Buffer.\r |
e1f414b6 | 147 | \r |
148 | **/\r | |
149 | UINT16\r | |
150 | EFIAPI\r | |
151 | CalculateCheckSum16 (\r | |
2f88bd3a MK |
152 | IN CONST UINT16 *Buffer,\r |
153 | IN UINTN Length\r | |
e1f414b6 | 154 | )\r |
155 | {\r | |
2f88bd3a | 156 | UINT16 CheckSum;\r |
e1f414b6 | 157 | \r |
158 | CheckSum = CalculateSum16 (Buffer, Length);\r | |
159 | \r | |
160 | //\r | |
161 | // Return the checksum based on 2's complement.\r | |
162 | //\r | |
2f88bd3a | 163 | return (UINT16)(0x10000 - CheckSum);\r |
e1f414b6 | 164 | }\r |
165 | \r | |
e1f414b6 | 166 | /**\r |
9aa049d9 | 167 | Returns the sum of all elements in a buffer of 32-bit values. During\r |
e1f414b6 | 168 | calculation, the carry bits are dropped.\r |
169 | \r | |
9aa049d9 | 170 | This function calculates the sum of the 32-bit values in the buffer\r |
171 | specified by Buffer and Length. The carry bits in result of addition are dropped.\r | |
172 | The 32-bit result is returned. If Length is 0, then 0 is returned.\r | |
173 | \r | |
e1f414b6 | 174 | If Buffer is NULL, then ASSERT().\r |
175 | If Buffer is not aligned on a 32-bit boundary, then ASSERT().\r | |
176 | If Length is not aligned on a 32-bit boundary, then ASSERT().\r | |
177 | If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().\r | |
178 | \r | |
127010dd | 179 | @param Buffer The pointer to the buffer to carry out the sum operation.\r |
1106ffe1 | 180 | @param Length The size, in bytes, of Buffer.\r |
e1f414b6 | 181 | \r |
9aa049d9 | 182 | @return Sum The sum of Buffer with carry bits dropped during additions.\r |
e1f414b6 | 183 | \r |
184 | **/\r | |
185 | UINT32\r | |
186 | EFIAPI\r | |
187 | CalculateSum32 (\r | |
2f88bd3a MK |
188 | IN CONST UINT32 *Buffer,\r |
189 | IN UINTN Length\r | |
e1f414b6 | 190 | )\r |
191 | {\r | |
2f88bd3a MK |
192 | UINT32 Sum;\r |
193 | UINTN Count;\r | |
194 | UINTN Total;\r | |
e1f414b6 | 195 | \r |
196 | ASSERT (Buffer != NULL);\r | |
2f88bd3a | 197 | ASSERT (((UINTN)Buffer & 0x3) == 0);\r |
e1f414b6 | 198 | ASSERT ((Length & 0x3) == 0);\r |
2f88bd3a | 199 | ASSERT (Length <= (MAX_ADDRESS - ((UINTN)Buffer) + 1));\r |
e1f414b6 | 200 | \r |
f9cea76b | 201 | Total = Length / sizeof (*Buffer);\r |
202 | for (Sum = 0, Count = 0; Count < Total; Count++) {\r | |
e1f414b6 | 203 | Sum = Sum + *(Buffer + Count);\r |
204 | }\r | |
9095d37b | 205 | \r |
e1f414b6 | 206 | return Sum;\r |
207 | }\r | |
208 | \r | |
e1f414b6 | 209 | /**\r |
9aa049d9 | 210 | Returns the two's complement checksum of all elements in a buffer of\r |
e1f414b6 | 211 | 32-bit values.\r |
212 | \r | |
9aa049d9 | 213 | This function first calculates the sum of the 32-bit values in the buffer\r |
214 | specified by Buffer and Length. The carry bits in the result of addition\r | |
215 | are dropped. Then, the two's complement of the sum is returned. If Length\r | |
e1f414b6 | 216 | is 0, then 0 is returned.\r |
9aa049d9 | 217 | \r |
e1f414b6 | 218 | If Buffer is NULL, then ASSERT().\r |
219 | If Buffer is not aligned on a 32-bit boundary, then ASSERT().\r | |
220 | If Length is not aligned on a 32-bit boundary, then ASSERT().\r | |
9aa049d9 | 221 | If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().\r |
e1f414b6 | 222 | \r |
127010dd | 223 | @param Buffer The pointer to the buffer to carry out the checksum operation.\r |
1106ffe1 | 224 | @param Length The size, in bytes, of Buffer.\r |
e1f414b6 | 225 | \r |
9aa049d9 | 226 | @return Checksum The 2's complement checksum of Buffer.\r |
e1f414b6 | 227 | \r |
228 | **/\r | |
229 | UINT32\r | |
230 | EFIAPI\r | |
231 | CalculateCheckSum32 (\r | |
2f88bd3a MK |
232 | IN CONST UINT32 *Buffer,\r |
233 | IN UINTN Length\r | |
e1f414b6 | 234 | )\r |
235 | {\r | |
2f88bd3a | 236 | UINT32 CheckSum;\r |
e1f414b6 | 237 | \r |
238 | CheckSum = CalculateSum32 (Buffer, Length);\r | |
239 | \r | |
240 | //\r | |
241 | // Return the checksum based on 2's complement.\r | |
242 | //\r | |
2f88bd3a | 243 | return (UINT32)((UINT32)(-1) - CheckSum + 1);\r |
e1f414b6 | 244 | }\r |
245 | \r | |
e1f414b6 | 246 | /**\r |
9aa049d9 | 247 | Returns the sum of all elements in a buffer of 64-bit values. During\r |
e1f414b6 | 248 | calculation, the carry bits are dropped.\r |
249 | \r | |
9aa049d9 | 250 | This function calculates the sum of the 64-bit values in the buffer\r |
251 | specified by Buffer and Length. The carry bits in result of addition are dropped.\r | |
252 | The 64-bit result is returned. If Length is 0, then 0 is returned.\r | |
253 | \r | |
e1f414b6 | 254 | If Buffer is NULL, then ASSERT().\r |
255 | If Buffer is not aligned on a 64-bit boundary, then ASSERT().\r | |
256 | If Length is not aligned on a 64-bit boundary, then ASSERT().\r | |
257 | If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().\r | |
258 | \r | |
127010dd | 259 | @param Buffer The pointer to the buffer to carry out the sum operation.\r |
1106ffe1 | 260 | @param Length The size, in bytes, of Buffer.\r |
e1f414b6 | 261 | \r |
9aa049d9 | 262 | @return Sum The sum of Buffer with carry bits dropped during additions.\r |
e1f414b6 | 263 | \r |
264 | **/\r | |
265 | UINT64\r | |
266 | EFIAPI\r | |
267 | CalculateSum64 (\r | |
2f88bd3a MK |
268 | IN CONST UINT64 *Buffer,\r |
269 | IN UINTN Length\r | |
e1f414b6 | 270 | )\r |
271 | {\r | |
2f88bd3a MK |
272 | UINT64 Sum;\r |
273 | UINTN Count;\r | |
274 | UINTN Total;\r | |
e1f414b6 | 275 | \r |
276 | ASSERT (Buffer != NULL);\r | |
2f88bd3a | 277 | ASSERT (((UINTN)Buffer & 0x7) == 0);\r |
e1f414b6 | 278 | ASSERT ((Length & 0x7) == 0);\r |
2f88bd3a | 279 | ASSERT (Length <= (MAX_ADDRESS - ((UINTN)Buffer) + 1));\r |
e1f414b6 | 280 | \r |
f9cea76b | 281 | Total = Length / sizeof (*Buffer);\r |
282 | for (Sum = 0, Count = 0; Count < Total; Count++) {\r | |
e1f414b6 | 283 | Sum = Sum + *(Buffer + Count);\r |
284 | }\r | |
9095d37b | 285 | \r |
e1f414b6 | 286 | return Sum;\r |
287 | }\r | |
288 | \r | |
e1f414b6 | 289 | /**\r |
9aa049d9 | 290 | Returns the two's complement checksum of all elements in a buffer of\r |
e1f414b6 | 291 | 64-bit values.\r |
292 | \r | |
9aa049d9 | 293 | This function first calculates the sum of the 64-bit values in the buffer\r |
294 | specified by Buffer and Length. The carry bits in the result of addition\r | |
295 | are dropped. Then, the two's complement of the sum is returned. If Length\r | |
e1f414b6 | 296 | is 0, then 0 is returned.\r |
9aa049d9 | 297 | \r |
e1f414b6 | 298 | If Buffer is NULL, then ASSERT().\r |
299 | If Buffer is not aligned on a 64-bit boundary, then ASSERT().\r | |
300 | If Length is not aligned on a 64-bit boundary, then ASSERT().\r | |
9aa049d9 | 301 | If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().\r |
e1f414b6 | 302 | \r |
127010dd | 303 | @param Buffer The pointer to the buffer to carry out the checksum operation.\r |
1106ffe1 | 304 | @param Length The size, in bytes, of Buffer.\r |
e1f414b6 | 305 | \r |
9aa049d9 | 306 | @return Checksum The 2's complement checksum of Buffer.\r |
e1f414b6 | 307 | \r |
308 | **/\r | |
309 | UINT64\r | |
310 | EFIAPI\r | |
311 | CalculateCheckSum64 (\r | |
2f88bd3a MK |
312 | IN CONST UINT64 *Buffer,\r |
313 | IN UINTN Length\r | |
e1f414b6 | 314 | )\r |
315 | {\r | |
2f88bd3a | 316 | UINT64 CheckSum;\r |
e1f414b6 | 317 | \r |
318 | CheckSum = CalculateSum64 (Buffer, Length);\r | |
319 | \r | |
320 | //\r | |
321 | // Return the checksum based on 2's complement.\r | |
322 | //\r | |
2f88bd3a | 323 | return (UINT64)((UINT64)(-1) - CheckSum + 1);\r |
e1f414b6 | 324 | }\r |
325 | \r | |
0a8e6f79 LG |
326 | GLOBAL_REMOVE_IF_UNREFERENCED CONST UINT32 mCrcTable[256] = {\r |
327 | 0x00000000,\r | |
328 | 0x77073096,\r | |
329 | 0xEE0E612C,\r | |
330 | 0x990951BA,\r | |
331 | 0x076DC419,\r | |
332 | 0x706AF48F,\r | |
333 | 0xE963A535,\r | |
334 | 0x9E6495A3,\r | |
335 | 0x0EDB8832,\r | |
336 | 0x79DCB8A4,\r | |
337 | 0xE0D5E91E,\r | |
338 | 0x97D2D988,\r | |
339 | 0x09B64C2B,\r | |
340 | 0x7EB17CBD,\r | |
341 | 0xE7B82D07,\r | |
342 | 0x90BF1D91,\r | |
343 | 0x1DB71064,\r | |
344 | 0x6AB020F2,\r | |
345 | 0xF3B97148,\r | |
346 | 0x84BE41DE,\r | |
347 | 0x1ADAD47D,\r | |
348 | 0x6DDDE4EB,\r | |
349 | 0xF4D4B551,\r | |
350 | 0x83D385C7,\r | |
351 | 0x136C9856,\r | |
352 | 0x646BA8C0,\r | |
353 | 0xFD62F97A,\r | |
354 | 0x8A65C9EC,\r | |
355 | 0x14015C4F,\r | |
356 | 0x63066CD9,\r | |
357 | 0xFA0F3D63,\r | |
358 | 0x8D080DF5,\r | |
359 | 0x3B6E20C8,\r | |
360 | 0x4C69105E,\r | |
361 | 0xD56041E4,\r | |
362 | 0xA2677172,\r | |
363 | 0x3C03E4D1,\r | |
364 | 0x4B04D447,\r | |
365 | 0xD20D85FD,\r | |
366 | 0xA50AB56B,\r | |
367 | 0x35B5A8FA,\r | |
368 | 0x42B2986C,\r | |
369 | 0xDBBBC9D6,\r | |
370 | 0xACBCF940,\r | |
371 | 0x32D86CE3,\r | |
372 | 0x45DF5C75,\r | |
373 | 0xDCD60DCF,\r | |
374 | 0xABD13D59,\r | |
375 | 0x26D930AC,\r | |
376 | 0x51DE003A,\r | |
377 | 0xC8D75180,\r | |
378 | 0xBFD06116,\r | |
379 | 0x21B4F4B5,\r | |
380 | 0x56B3C423,\r | |
381 | 0xCFBA9599,\r | |
382 | 0xB8BDA50F,\r | |
383 | 0x2802B89E,\r | |
384 | 0x5F058808,\r | |
385 | 0xC60CD9B2,\r | |
386 | 0xB10BE924,\r | |
387 | 0x2F6F7C87,\r | |
388 | 0x58684C11,\r | |
389 | 0xC1611DAB,\r | |
390 | 0xB6662D3D,\r | |
391 | 0x76DC4190,\r | |
392 | 0x01DB7106,\r | |
393 | 0x98D220BC,\r | |
394 | 0xEFD5102A,\r | |
395 | 0x71B18589,\r | |
396 | 0x06B6B51F,\r | |
397 | 0x9FBFE4A5,\r | |
398 | 0xE8B8D433,\r | |
399 | 0x7807C9A2,\r | |
400 | 0x0F00F934,\r | |
401 | 0x9609A88E,\r | |
402 | 0xE10E9818,\r | |
403 | 0x7F6A0DBB,\r | |
404 | 0x086D3D2D,\r | |
405 | 0x91646C97,\r | |
406 | 0xE6635C01,\r | |
407 | 0x6B6B51F4,\r | |
408 | 0x1C6C6162,\r | |
409 | 0x856530D8,\r | |
410 | 0xF262004E,\r | |
411 | 0x6C0695ED,\r | |
412 | 0x1B01A57B,\r | |
413 | 0x8208F4C1,\r | |
414 | 0xF50FC457,\r | |
415 | 0x65B0D9C6,\r | |
416 | 0x12B7E950,\r | |
417 | 0x8BBEB8EA,\r | |
418 | 0xFCB9887C,\r | |
419 | 0x62DD1DDF,\r | |
420 | 0x15DA2D49,\r | |
421 | 0x8CD37CF3,\r | |
422 | 0xFBD44C65,\r | |
423 | 0x4DB26158,\r | |
424 | 0x3AB551CE,\r | |
425 | 0xA3BC0074,\r | |
426 | 0xD4BB30E2,\r | |
427 | 0x4ADFA541,\r | |
428 | 0x3DD895D7,\r | |
429 | 0xA4D1C46D,\r | |
430 | 0xD3D6F4FB,\r | |
431 | 0x4369E96A,\r | |
432 | 0x346ED9FC,\r | |
433 | 0xAD678846,\r | |
434 | 0xDA60B8D0,\r | |
435 | 0x44042D73,\r | |
436 | 0x33031DE5,\r | |
437 | 0xAA0A4C5F,\r | |
438 | 0xDD0D7CC9,\r | |
439 | 0x5005713C,\r | |
440 | 0x270241AA,\r | |
441 | 0xBE0B1010,\r | |
442 | 0xC90C2086,\r | |
443 | 0x5768B525,\r | |
444 | 0x206F85B3,\r | |
445 | 0xB966D409,\r | |
446 | 0xCE61E49F,\r | |
447 | 0x5EDEF90E,\r | |
448 | 0x29D9C998,\r | |
449 | 0xB0D09822,\r | |
450 | 0xC7D7A8B4,\r | |
451 | 0x59B33D17,\r | |
452 | 0x2EB40D81,\r | |
453 | 0xB7BD5C3B,\r | |
454 | 0xC0BA6CAD,\r | |
455 | 0xEDB88320,\r | |
456 | 0x9ABFB3B6,\r | |
457 | 0x03B6E20C,\r | |
458 | 0x74B1D29A,\r | |
459 | 0xEAD54739,\r | |
460 | 0x9DD277AF,\r | |
461 | 0x04DB2615,\r | |
462 | 0x73DC1683,\r | |
463 | 0xE3630B12,\r | |
464 | 0x94643B84,\r | |
465 | 0x0D6D6A3E,\r | |
466 | 0x7A6A5AA8,\r | |
467 | 0xE40ECF0B,\r | |
468 | 0x9309FF9D,\r | |
469 | 0x0A00AE27,\r | |
470 | 0x7D079EB1,\r | |
471 | 0xF00F9344,\r | |
472 | 0x8708A3D2,\r | |
473 | 0x1E01F268,\r | |
474 | 0x6906C2FE,\r | |
475 | 0xF762575D,\r | |
476 | 0x806567CB,\r | |
477 | 0x196C3671,\r | |
478 | 0x6E6B06E7,\r | |
479 | 0xFED41B76,\r | |
480 | 0x89D32BE0,\r | |
481 | 0x10DA7A5A,\r | |
482 | 0x67DD4ACC,\r | |
483 | 0xF9B9DF6F,\r | |
484 | 0x8EBEEFF9,\r | |
485 | 0x17B7BE43,\r | |
486 | 0x60B08ED5,\r | |
487 | 0xD6D6A3E8,\r | |
488 | 0xA1D1937E,\r | |
489 | 0x38D8C2C4,\r | |
490 | 0x4FDFF252,\r | |
491 | 0xD1BB67F1,\r | |
492 | 0xA6BC5767,\r | |
493 | 0x3FB506DD,\r | |
494 | 0x48B2364B,\r | |
495 | 0xD80D2BDA,\r | |
496 | 0xAF0A1B4C,\r | |
497 | 0x36034AF6,\r | |
498 | 0x41047A60,\r | |
499 | 0xDF60EFC3,\r | |
500 | 0xA867DF55,\r | |
501 | 0x316E8EEF,\r | |
502 | 0x4669BE79,\r | |
503 | 0xCB61B38C,\r | |
504 | 0xBC66831A,\r | |
505 | 0x256FD2A0,\r | |
506 | 0x5268E236,\r | |
507 | 0xCC0C7795,\r | |
508 | 0xBB0B4703,\r | |
509 | 0x220216B9,\r | |
510 | 0x5505262F,\r | |
511 | 0xC5BA3BBE,\r | |
512 | 0xB2BD0B28,\r | |
513 | 0x2BB45A92,\r | |
514 | 0x5CB36A04,\r | |
515 | 0xC2D7FFA7,\r | |
516 | 0xB5D0CF31,\r | |
517 | 0x2CD99E8B,\r | |
518 | 0x5BDEAE1D,\r | |
519 | 0x9B64C2B0,\r | |
520 | 0xEC63F226,\r | |
521 | 0x756AA39C,\r | |
522 | 0x026D930A,\r | |
523 | 0x9C0906A9,\r | |
524 | 0xEB0E363F,\r | |
525 | 0x72076785,\r | |
526 | 0x05005713,\r | |
527 | 0x95BF4A82,\r | |
528 | 0xE2B87A14,\r | |
529 | 0x7BB12BAE,\r | |
530 | 0x0CB61B38,\r | |
531 | 0x92D28E9B,\r | |
532 | 0xE5D5BE0D,\r | |
533 | 0x7CDCEFB7,\r | |
534 | 0x0BDBDF21,\r | |
535 | 0x86D3D2D4,\r | |
536 | 0xF1D4E242,\r | |
537 | 0x68DDB3F8,\r | |
538 | 0x1FDA836E,\r | |
539 | 0x81BE16CD,\r | |
540 | 0xF6B9265B,\r | |
541 | 0x6FB077E1,\r | |
542 | 0x18B74777,\r | |
543 | 0x88085AE6,\r | |
544 | 0xFF0F6A70,\r | |
545 | 0x66063BCA,\r | |
546 | 0x11010B5C,\r | |
547 | 0x8F659EFF,\r | |
548 | 0xF862AE69,\r | |
549 | 0x616BFFD3,\r | |
550 | 0x166CCF45,\r | |
551 | 0xA00AE278,\r | |
552 | 0xD70DD2EE,\r | |
553 | 0x4E048354,\r | |
554 | 0x3903B3C2,\r | |
555 | 0xA7672661,\r | |
556 | 0xD06016F7,\r | |
557 | 0x4969474D,\r | |
558 | 0x3E6E77DB,\r | |
559 | 0xAED16A4A,\r | |
560 | 0xD9D65ADC,\r | |
561 | 0x40DF0B66,\r | |
562 | 0x37D83BF0,\r | |
563 | 0xA9BCAE53,\r | |
564 | 0xDEBB9EC5,\r | |
565 | 0x47B2CF7F,\r | |
566 | 0x30B5FFE9,\r | |
567 | 0xBDBDF21C,\r | |
568 | 0xCABAC28A,\r | |
569 | 0x53B39330,\r | |
570 | 0x24B4A3A6,\r | |
571 | 0xBAD03605,\r | |
572 | 0xCDD70693,\r | |
573 | 0x54DE5729,\r | |
574 | 0x23D967BF,\r | |
575 | 0xB3667A2E,\r | |
576 | 0xC4614AB8,\r | |
577 | 0x5D681B02,\r | |
578 | 0x2A6F2B94,\r | |
579 | 0xB40BBE37,\r | |
580 | 0xC30C8EA1,\r | |
581 | 0x5A05DF1B,\r | |
582 | 0x2D02EF8D\r | |
583 | };\r | |
e1f414b6 | 584 | \r |
0a8e6f79 LG |
585 | /**\r |
586 | Computes and returns a 32-bit CRC for a data buffer.\r | |
587 | CRC32 value bases on ITU-T V.42.\r | |
588 | \r | |
589 | If Buffer is NULL, then ASSERT().\r | |
590 | If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().\r | |
591 | \r | |
592 | @param[in] Buffer A pointer to the buffer on which the 32-bit CRC is to be computed.\r | |
593 | @param[in] Length The number of bytes in the buffer Data.\r | |
594 | \r | |
595 | @retval Crc32 The 32-bit CRC was computed for the data buffer.\r | |
596 | \r | |
597 | **/\r | |
598 | UINT32\r | |
599 | EFIAPI\r | |
2f88bd3a MK |
600 | CalculateCrc32 (\r |
601 | IN VOID *Buffer,\r | |
602 | IN UINTN Length\r | |
0a8e6f79 LG |
603 | )\r |
604 | {\r | |
605 | UINTN Index;\r | |
606 | UINT32 Crc;\r | |
607 | UINT8 *Ptr;\r | |
608 | \r | |
609 | ASSERT (Buffer != NULL);\r | |
2f88bd3a | 610 | ASSERT (Length <= (MAX_ADDRESS - ((UINTN)Buffer) + 1));\r |
0a8e6f79 LG |
611 | \r |
612 | //\r | |
613 | // Compute CRC\r | |
614 | //\r | |
615 | Crc = 0xffffffff;\r | |
616 | for (Index = 0, Ptr = Buffer; Index < Length; Index++, Ptr++) {\r | |
2f88bd3a | 617 | Crc = (Crc >> 8) ^ mCrcTable[(UINT8)Crc ^ *Ptr];\r |
0a8e6f79 LG |
618 | }\r |
619 | \r | |
620 | return Crc ^ 0xffffffff;\r | |
621 | }\r | |
92288f43 PF |
622 | \r |
623 | GLOBAL_REMOVE_IF_UNREFERENCED STATIC CONST UINT16 mCrc16LookupTable[256] =\r | |
624 | {\r | |
625 | 0x0000, 0xC0C1, 0xC181, 0x0140, 0xC301, 0x03C0, 0x0280, 0xC241,\r | |
626 | 0xC601, 0x06C0, 0x0780, 0xC741, 0x0500, 0xC5C1, 0xC481, 0x0440,\r | |
627 | 0xCC01, 0x0CC0, 0x0D80, 0xCD41, 0x0F00, 0xCFC1, 0xCE81, 0x0E40,\r | |
628 | 0x0A00, 0xCAC1, 0xCB81, 0x0B40, 0xC901, 0x09C0, 0x0880, 0xC841,\r | |
629 | 0xD801, 0x18C0, 0x1980, 0xD941, 0x1B00, 0xDBC1, 0xDA81, 0x1A40,\r | |
630 | 0x1E00, 0xDEC1, 0xDF81, 0x1F40, 0xDD01, 0x1DC0, 0x1C80, 0xDC41,\r | |
631 | 0x1400, 0xD4C1, 0xD581, 0x1540, 0xD701, 0x17C0, 0x1680, 0xD641,\r | |
632 | 0xD201, 0x12C0, 0x1380, 0xD341, 0x1100, 0xD1C1, 0xD081, 0x1040,\r | |
633 | 0xF001, 0x30C0, 0x3180, 0xF141, 0x3300, 0xF3C1, 0xF281, 0x3240,\r | |
634 | 0x3600, 0xF6C1, 0xF781, 0x3740, 0xF501, 0x35C0, 0x3480, 0xF441,\r | |
635 | 0x3C00, 0xFCC1, 0xFD81, 0x3D40, 0xFF01, 0x3FC0, 0x3E80, 0xFE41,\r | |
636 | 0xFA01, 0x3AC0, 0x3B80, 0xFB41, 0x3900, 0xF9C1, 0xF881, 0x3840,\r | |
637 | 0x2800, 0xE8C1, 0xE981, 0x2940, 0xEB01, 0x2BC0, 0x2A80, 0xEA41,\r | |
638 | 0xEE01, 0x2EC0, 0x2F80, 0xEF41, 0x2D00, 0xEDC1, 0xEC81, 0x2C40,\r | |
639 | 0xE401, 0x24C0, 0x2580, 0xE541, 0x2700, 0xE7C1, 0xE681, 0x2640,\r | |
640 | 0x2200, 0xE2C1, 0xE381, 0x2340, 0xE101, 0x21C0, 0x2080, 0xE041,\r | |
641 | 0xA001, 0x60C0, 0x6180, 0xA141, 0x6300, 0xA3C1, 0xA281, 0x6240,\r | |
642 | 0x6600, 0xA6C1, 0xA781, 0x6740, 0xA501, 0x65C0, 0x6480, 0xA441,\r | |
643 | 0x6C00, 0xACC1, 0xAD81, 0x6D40, 0xAF01, 0x6FC0, 0x6E80, 0xAE41,\r | |
644 | 0xAA01, 0x6AC0, 0x6B80, 0xAB41, 0x6900, 0xA9C1, 0xA881, 0x6840,\r | |
645 | 0x7800, 0xB8C1, 0xB981, 0x7940, 0xBB01, 0x7BC0, 0x7A80, 0xBA41,\r | |
646 | 0xBE01, 0x7EC0, 0x7F80, 0xBF41, 0x7D00, 0xBDC1, 0xBC81, 0x7C40,\r | |
647 | 0xB401, 0x74C0, 0x7580, 0xB541, 0x7700, 0xB7C1, 0xB681, 0x7640,\r | |
648 | 0x7200, 0xB2C1, 0xB381, 0x7340, 0xB101, 0x71C0, 0x7080, 0xB041,\r | |
649 | 0x5000, 0x90C1, 0x9181, 0x5140, 0x9301, 0x53C0, 0x5280, 0x9241,\r | |
650 | 0x9601, 0x56C0, 0x5780, 0x9741, 0x5500, 0x95C1, 0x9481, 0x5440,\r | |
651 | 0x9C01, 0x5CC0, 0x5D80, 0x9D41, 0x5F00, 0x9FC1, 0x9E81, 0x5E40,\r | |
652 | 0x5A00, 0x9AC1, 0x9B81, 0x5B40, 0x9901, 0x59C0, 0x5880, 0x9841,\r | |
653 | 0x8801, 0x48C0, 0x4980, 0x8941, 0x4B00, 0x8BC1, 0x8A81, 0x4A40,\r | |
654 | 0x4E00, 0x8EC1, 0x8F81, 0x4F40, 0x8D01, 0x4DC0, 0x4C80, 0x8C41,\r | |
655 | 0x4400, 0x84C1, 0x8581, 0x4540, 0x8701, 0x47C0, 0x4680, 0x8641,\r | |
656 | 0x8201, 0x42C0, 0x4380, 0x8341, 0x4100, 0x81C1, 0x8081, 0x4040\r | |
657 | };\r | |
658 | \r | |
659 | /**\r | |
660 | Calculates the CRC16-ANSI checksum of the given buffer.\r | |
661 | \r | |
662 | @param[in] Buffer Pointer to the buffer.\r | |
663 | @param[in] Length Length of the buffer, in bytes.\r | |
664 | @param[in] InitialValue Initial value of the CRC.\r | |
665 | \r | |
666 | @return The CRC16-ANSI checksum.\r | |
667 | **/\r | |
668 | UINT16\r | |
669 | EFIAPI\r | |
670 | CalculateCrc16Ansi (\r | |
671 | IN CONST VOID *Buffer,\r | |
672 | IN UINTN Length,\r | |
673 | IN UINT16 InitialValue\r | |
674 | )\r | |
675 | {\r | |
676 | CONST UINT8 *Buf;\r | |
677 | UINT16 Crc;\r | |
678 | \r | |
679 | Buf = Buffer;\r | |
680 | \r | |
681 | Crc = ~InitialValue;\r | |
682 | \r | |
683 | while (Length-- != 0) {\r | |
684 | Crc = mCrc16LookupTable[(Crc & 0xFF) ^ *(Buf++)] ^ (Crc >> 8);\r | |
685 | }\r | |
686 | \r | |
687 | return ~Crc;\r | |
688 | }\r | |
689 | \r | |
690 | GLOBAL_REMOVE_IF_UNREFERENCED STATIC CONST UINT32 mCrc32cLookupTable[256] = {\r | |
691 | 0x00000000, 0xf26b8303, 0xe13b70f7, 0x1350f3f4, 0xc79a971f, 0x35f1141c,\r | |
692 | 0x26a1e7e8, 0xd4ca64eb, 0x8ad958cf, 0x78b2dbcc, 0x6be22838, 0x9989ab3b,\r | |
693 | 0x4d43cfd0, 0xbf284cd3, 0xac78bf27, 0x5e133c24, 0x105ec76f, 0xe235446c,\r | |
694 | 0xf165b798, 0x030e349b, 0xd7c45070, 0x25afd373, 0x36ff2087, 0xc494a384,\r | |
695 | 0x9a879fa0, 0x68ec1ca3, 0x7bbcef57, 0x89d76c54, 0x5d1d08bf, 0xaf768bbc,\r | |
696 | 0xbc267848, 0x4e4dfb4b, 0x20bd8ede, 0xd2d60ddd, 0xc186fe29, 0x33ed7d2a,\r | |
697 | 0xe72719c1, 0x154c9ac2, 0x061c6936, 0xf477ea35, 0xaa64d611, 0x580f5512,\r | |
698 | 0x4b5fa6e6, 0xb93425e5, 0x6dfe410e, 0x9f95c20d, 0x8cc531f9, 0x7eaeb2fa,\r | |
699 | 0x30e349b1, 0xc288cab2, 0xd1d83946, 0x23b3ba45, 0xf779deae, 0x05125dad,\r | |
700 | 0x1642ae59, 0xe4292d5a, 0xba3a117e, 0x4851927d, 0x5b016189, 0xa96ae28a,\r | |
701 | 0x7da08661, 0x8fcb0562, 0x9c9bf696, 0x6ef07595, 0x417b1dbc, 0xb3109ebf,\r | |
702 | 0xa0406d4b, 0x522bee48, 0x86e18aa3, 0x748a09a0, 0x67dafa54, 0x95b17957,\r | |
703 | 0xcba24573, 0x39c9c670, 0x2a993584, 0xd8f2b687, 0x0c38d26c, 0xfe53516f,\r | |
704 | 0xed03a29b, 0x1f682198, 0x5125dad3, 0xa34e59d0, 0xb01eaa24, 0x42752927,\r | |
705 | 0x96bf4dcc, 0x64d4cecf, 0x77843d3b, 0x85efbe38, 0xdbfc821c, 0x2997011f,\r | |
706 | 0x3ac7f2eb, 0xc8ac71e8, 0x1c661503, 0xee0d9600, 0xfd5d65f4, 0x0f36e6f7,\r | |
707 | 0x61c69362, 0x93ad1061, 0x80fde395, 0x72966096, 0xa65c047d, 0x5437877e,\r | |
708 | 0x4767748a, 0xb50cf789, 0xeb1fcbad, 0x197448ae, 0x0a24bb5a, 0xf84f3859,\r | |
709 | 0x2c855cb2, 0xdeeedfb1, 0xcdbe2c45, 0x3fd5af46, 0x7198540d, 0x83f3d70e,\r | |
710 | 0x90a324fa, 0x62c8a7f9, 0xb602c312, 0x44694011, 0x5739b3e5, 0xa55230e6,\r | |
711 | 0xfb410cc2, 0x092a8fc1, 0x1a7a7c35, 0xe811ff36, 0x3cdb9bdd, 0xceb018de,\r | |
712 | 0xdde0eb2a, 0x2f8b6829, 0x82f63b78, 0x709db87b, 0x63cd4b8f, 0x91a6c88c,\r | |
713 | 0x456cac67, 0xb7072f64, 0xa457dc90, 0x563c5f93, 0x082f63b7, 0xfa44e0b4,\r | |
714 | 0xe9141340, 0x1b7f9043, 0xcfb5f4a8, 0x3dde77ab, 0x2e8e845f, 0xdce5075c,\r | |
715 | 0x92a8fc17, 0x60c37f14, 0x73938ce0, 0x81f80fe3, 0x55326b08, 0xa759e80b,\r | |
716 | 0xb4091bff, 0x466298fc, 0x1871a4d8, 0xea1a27db, 0xf94ad42f, 0x0b21572c,\r | |
717 | 0xdfeb33c7, 0x2d80b0c4, 0x3ed04330, 0xccbbc033, 0xa24bb5a6, 0x502036a5,\r | |
718 | 0x4370c551, 0xb11b4652, 0x65d122b9, 0x97baa1ba, 0x84ea524e, 0x7681d14d,\r | |
719 | 0x2892ed69, 0xdaf96e6a, 0xc9a99d9e, 0x3bc21e9d, 0xef087a76, 0x1d63f975,\r | |
720 | 0x0e330a81, 0xfc588982, 0xb21572c9, 0x407ef1ca, 0x532e023e, 0xa145813d,\r | |
721 | 0x758fe5d6, 0x87e466d5, 0x94b49521, 0x66df1622, 0x38cc2a06, 0xcaa7a905,\r | |
722 | 0xd9f75af1, 0x2b9cd9f2, 0xff56bd19, 0x0d3d3e1a, 0x1e6dcdee, 0xec064eed,\r | |
723 | 0xc38d26c4, 0x31e6a5c7, 0x22b65633, 0xd0ddd530, 0x0417b1db, 0xf67c32d8,\r | |
724 | 0xe52cc12c, 0x1747422f, 0x49547e0b, 0xbb3ffd08, 0xa86f0efc, 0x5a048dff,\r | |
725 | 0x8ecee914, 0x7ca56a17, 0x6ff599e3, 0x9d9e1ae0, 0xd3d3e1ab, 0x21b862a8,\r | |
726 | 0x32e8915c, 0xc083125f, 0x144976b4, 0xe622f5b7, 0xf5720643, 0x07198540,\r | |
727 | 0x590ab964, 0xab613a67, 0xb831c993, 0x4a5a4a90, 0x9e902e7b, 0x6cfbad78,\r | |
728 | 0x7fab5e8c, 0x8dc0dd8f, 0xe330a81a, 0x115b2b19, 0x020bd8ed, 0xf0605bee,\r | |
729 | 0x24aa3f05, 0xd6c1bc06, 0xc5914ff2, 0x37faccf1, 0x69e9f0d5, 0x9b8273d6,\r | |
730 | 0x88d28022, 0x7ab90321, 0xae7367ca, 0x5c18e4c9, 0x4f48173d, 0xbd23943e,\r | |
731 | 0xf36e6f75, 0x0105ec76, 0x12551f82, 0xe03e9c81, 0x34f4f86a, 0xc69f7b69,\r | |
732 | 0xd5cf889d, 0x27a40b9e, 0x79b737ba, 0x8bdcb4b9, 0x988c474d, 0x6ae7c44e,\r | |
733 | 0xbe2da0a5, 0x4c4623a6, 0x5f16d052, 0xad7d5351\r | |
734 | };\r | |
735 | \r | |
736 | /**\r | |
737 | Calculates the CRC32c checksum of the given buffer.\r | |
738 | \r | |
739 | @param[in] Buffer Pointer to the buffer.\r | |
740 | @param[in] Length Length of the buffer, in bytes.\r | |
741 | @param[in] InitialValue Initial value of the CRC.\r | |
742 | \r | |
743 | @return The CRC32c checksum.\r | |
744 | **/\r | |
745 | UINT32\r | |
746 | EFIAPI\r | |
747 | CalculateCrc32c (\r | |
748 | IN CONST VOID *Buffer,\r | |
749 | IN UINTN Length,\r | |
750 | IN UINT32 InitialValue\r | |
751 | )\r | |
752 | {\r | |
753 | CONST UINT8 *Buf;\r | |
754 | UINT32 Crc;\r | |
755 | \r | |
756 | Buf = Buffer;\r | |
757 | Crc = ~InitialValue;\r | |
758 | \r | |
759 | while (Length-- != 0) {\r | |
760 | Crc = mCrc32cLookupTable[(Crc & 0xFF) ^ *(Buf++)] ^ (Crc >> 8);\r | |
761 | }\r | |
762 | \r | |
763 | return ~Crc;\r | |
764 | }\r |