| 1 | /* |
| 2 | * Castagnoli CRC32C Checksum Algorithm |
| 3 | * |
| 4 | * Polynomial: 0x11EDC6F41 |
| 5 | * |
| 6 | * Castagnoli93: Guy Castagnoli and Stefan Braeuer and Martin Herrman |
| 7 | * "Optimization of Cyclic Redundancy-Check Codes with 24 |
| 8 | * and 32 Parity Bits",IEEE Transactions on Communication, |
| 9 | * Volume 41, Number 6, June 1993 |
| 10 | * |
| 11 | * Copyright (c) 2013 Red Hat, Inc., |
| 12 | * |
| 13 | * Authors: |
| 14 | * Jeff Cody <jcody@redhat.com> |
| 15 | * |
| 16 | * Based on the Linux kernel cryptographic crc32c module, |
| 17 | * |
| 18 | * Copyright (c) 2004 Cisco Systems, Inc. |
| 19 | * Copyright (c) 2008 Herbert Xu <herbert@gondor.apana.org.au> |
| 20 | * |
| 21 | * This program is free software; you can redistribute it and/or modify it |
| 22 | * under the terms of the GNU General Public License as published by the Free |
| 23 | * Software Foundation; either version 2 of the License, or (at your option) |
| 24 | * any later version. |
| 25 | * |
| 26 | */ |
| 27 | |
| 28 | #ifndef QEMU_CRC32C_H |
| 29 | #define QEMU_CRC32C_H |
| 30 | |
| 31 | extern const uint32_t crc32c_table[256]; |
| 32 | |
| 33 | uint32_t crc32c(uint32_t crc, const uint8_t *data, unsigned int length); |
| 34 | uint32_t iov_crc32c(uint32_t crc, const struct iovec *iov, size_t iov_cnt); |
| 35 | |
| 36 | #endif |