| 1 | /*************************************************************************** |
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| 2 | * Copyright (c) 2003-2007, Broadcom Corporation |
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| 3 | * All Rights Reserved |
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| 4 | * Confidential Property of Broadcom Corporation |
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| 5 | * |
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| 6 | * THIS SOFTWARE MAY ONLY BE USED SUBJECT TO AN EXECUTED SOFTWARE LICENSE |
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| 7 | * AGREEMENT BETWEEN THE USER AND BROADCOM. YOU HAVE NO RIGHT TO USE OR |
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| 8 | * EXPLOIT THIS MATERIAL EXCEPT SUBJECT TO THE TERMS OF SUCH AN AGREEMENT. |
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| 9 | * |
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| 10 | * File: bcrc32.c |
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| 11 | * Description: CRC32 implementation on big endian data |
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| 12 | * |
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| 13 | * Created: Tue Feb 13 15:42:35 GMT 2007 by Rob McConnell |
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| 14 | * |
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| 15 | ***************************************************************************/ |
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| 16 | |
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| 17 | #include "bsettop_types.h" |
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| 18 | |
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| 19 | static const uint32_t bcrc32_table[256] = { |
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| 20 | 0x00000000, 0x04c11db7, 0x09823b6e, 0x0d4326d9, |
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| 21 | 0x130476dc, 0x17c56b6b, 0x1a864db2, 0x1e475005, |
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| 22 | 0x2608edb8, 0x22c9f00f, 0x2f8ad6d6, 0x2b4bcb61, |
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| 23 | 0x350c9b64, 0x31cd86d3, 0x3c8ea00a, 0x384fbdbd, |
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| 24 | 0x4c11db70, 0x48d0c6c7, 0x4593e01e, 0x4152fda9, |
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| 25 | 0x5f15adac, 0x5bd4b01b, 0x569796c2, 0x52568b75, |
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| 26 | 0x6a1936c8, 0x6ed82b7f, 0x639b0da6, 0x675a1011, |
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| 27 | 0x791d4014, 0x7ddc5da3, 0x709f7b7a, 0x745e66cd, |
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| 28 | 0x9823b6e0, 0x9ce2ab57, 0x91a18d8e, 0x95609039, |
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| 29 | 0x8b27c03c, 0x8fe6dd8b, 0x82a5fb52, 0x8664e6e5, |
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| 30 | 0xbe2b5b58, 0xbaea46ef, 0xb7a96036, 0xb3687d81, |
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| 31 | 0xad2f2d84, 0xa9ee3033, 0xa4ad16ea, 0xa06c0b5d, |
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| 32 | 0xd4326d90, 0xd0f37027, 0xddb056fe, 0xd9714b49, |
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| 33 | 0xc7361b4c, 0xc3f706fb, 0xceb42022, 0xca753d95, |
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| 34 | 0xf23a8028, 0xf6fb9d9f, 0xfbb8bb46, 0xff79a6f1, |
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| 35 | 0xe13ef6f4, 0xe5ffeb43, 0xe8bccd9a, 0xec7dd02d, |
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| 36 | 0x34867077, 0x30476dc0, 0x3d044b19, 0x39c556ae, |
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| 37 | 0x278206ab, 0x23431b1c, 0x2e003dc5, 0x2ac12072, |
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| 38 | 0x128e9dcf, 0x164f8078, 0x1b0ca6a1, 0x1fcdbb16, |
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| 39 | 0x018aeb13, 0x054bf6a4, 0x0808d07d, 0x0cc9cdca, |
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| 40 | 0x7897ab07, 0x7c56b6b0, 0x71159069, 0x75d48dde, |
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| 41 | 0x6b93dddb, 0x6f52c06c, 0x6211e6b5, 0x66d0fb02, |
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| 42 | 0x5e9f46bf, 0x5a5e5b08, 0x571d7dd1, 0x53dc6066, |
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| 43 | 0x4d9b3063, 0x495a2dd4, 0x44190b0d, 0x40d816ba, |
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| 44 | 0xaca5c697, 0xa864db20, 0xa527fdf9, 0xa1e6e04e, |
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| 45 | 0xbfa1b04b, 0xbb60adfc, 0xb6238b25, 0xb2e29692, |
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| 46 | 0x8aad2b2f, 0x8e6c3698, 0x832f1041, 0x87ee0df6, |
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| 47 | 0x99a95df3, 0x9d684044, 0x902b669d, 0x94ea7b2a, |
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| 48 | 0xe0b41de7, 0xe4750050, 0xe9362689, 0xedf73b3e, |
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| 49 | 0xf3b06b3b, 0xf771768c, 0xfa325055, 0xfef34de2, |
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| 50 | 0xc6bcf05f, 0xc27dede8, 0xcf3ecb31, 0xcbffd686, |
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| 51 | 0xd5b88683, 0xd1799b34, 0xdc3abded, 0xd8fba05a, |
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| 52 | 0x690ce0ee, 0x6dcdfd59, 0x608edb80, 0x644fc637, |
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| 53 | 0x7a089632, 0x7ec98b85, 0x738aad5c, 0x774bb0eb, |
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| 54 | 0x4f040d56, 0x4bc510e1, 0x46863638, 0x42472b8f, |
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| 55 | 0x5c007b8a, 0x58c1663d, 0x558240e4, 0x51435d53, |
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| 56 | 0x251d3b9e, 0x21dc2629, 0x2c9f00f0, 0x285e1d47, |
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| 57 | 0x36194d42, 0x32d850f5, 0x3f9b762c, 0x3b5a6b9b, |
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| 58 | 0x0315d626, 0x07d4cb91, 0x0a97ed48, 0x0e56f0ff, |
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| 59 | 0x1011a0fa, 0x14d0bd4d, 0x19939b94, 0x1d528623, |
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| 60 | 0xf12f560e, 0xf5ee4bb9, 0xf8ad6d60, 0xfc6c70d7, |
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| 61 | 0xe22b20d2, 0xe6ea3d65, 0xeba91bbc, 0xef68060b, |
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| 62 | 0xd727bbb6, 0xd3e6a601, 0xdea580d8, 0xda649d6f, |
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| 63 | 0xc423cd6a, 0xc0e2d0dd, 0xcda1f604, 0xc960ebb3, |
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| 64 | 0xbd3e8d7e, 0xb9ff90c9, 0xb4bcb610, 0xb07daba7, |
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| 65 | 0xae3afba2, 0xaafbe615, 0xa7b8c0cc, 0xa379dd7b, |
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| 66 | 0x9b3660c6, 0x9ff77d71, 0x92b45ba8, 0x9675461f, |
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| 67 | 0x8832161a, 0x8cf30bad, 0x81b02d74, 0x857130c3, |
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| 68 | 0x5d8a9099, 0x594b8d2e, 0x5408abf7, 0x50c9b640, |
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| 69 | 0x4e8ee645, 0x4a4ffbf2, 0x470cdd2b, 0x43cdc09c, |
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| 70 | 0x7b827d21, 0x7f436096, 0x7200464f, 0x76c15bf8, |
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| 71 | 0x68860bfd, 0x6c47164a, 0x61043093, 0x65c52d24, |
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| 72 | 0x119b4be9, 0x155a565e, 0x18197087, 0x1cd86d30, |
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| 73 | 0x029f3d35, 0x065e2082, 0x0b1d065b, 0x0fdc1bec, |
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| 74 | 0x3793a651, 0x3352bbe6, 0x3e119d3f, 0x3ad08088, |
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| 75 | 0x2497d08d, 0x2056cd3a, 0x2d15ebe3, 0x29d4f654, |
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| 76 | 0xc5a92679, 0xc1683bce, 0xcc2b1d17, 0xc8ea00a0, |
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| 77 | 0xd6ad50a5, 0xd26c4d12, 0xdf2f6bcb, 0xdbee767c, |
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| 78 | 0xe3a1cbc1, 0xe760d676, 0xea23f0af, 0xeee2ed18, |
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| 79 | 0xf0a5bd1d, 0xf464a0aa, 0xf9278673, 0xfde69bc4, |
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| 80 | 0x89b8fd09, 0x8d79e0be, 0x803ac667, 0x84fbdbd0, |
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| 81 | 0x9abc8bd5, 0x9e7d9662, 0x933eb0bb, 0x97ffad0c, |
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| 82 | 0xafb010b1, 0xab710d06, 0xa6322bdf, 0xa2f33668, |
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| 83 | 0xbcb4666d, 0xb8757bda, 0xb5365d03, 0xb1f740b4 |
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| 84 | }; |
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| 85 | |
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| 86 | uint32_t bcrc32(uint8_t * data, unsigned len) |
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| 87 | { |
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| 88 | uint32_t crc = ~0; |
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| 89 | |
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| 90 | while (len--) { |
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| 91 | crc = bcrc32_table[(crc >> 24) ^ (uint32_t)(*data++)] ^ (crc << 8); |
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| 92 | } |
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| 93 | return crc; |
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| 94 | } |
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| 95 | |
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