1 | /* |
2 | * Copyright (c) 2014 Grzegorz Kostka (kostka.grzegorz@gmail.com) |
3 | * All rights reserved. |
4 | * |
5 | * Based on FreeBSD. |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without |
8 | * modification, are permitted provided that the following conditions |
9 | * are met: |
10 | * |
11 | * - Redistributions of source code must retain the above copyright |
12 | * notice, this list of conditions and the following disclaimer. |
13 | * - Redistributions in binary form must reproduce the above copyright |
14 | * notice, this list of conditions and the following disclaimer in the |
15 | * documentation and/or other materials provided with the distribution. |
16 | * - The name of the author may not be used to endorse or promote products |
17 | * derived from this software without specific prior written permission. |
18 | * |
19 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
20 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
21 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
22 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
23 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
24 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
25 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
26 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
27 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
28 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
29 | */ |
30 | |
31 | /** @addtogroup lwext4 |
32 | * @{ |
33 | */ |
34 | /** |
35 | * @file ext4_crc32.h |
36 | * @brief Crc32c routine. Taken from FreeBSD kernel. |
37 | */ |
38 | |
39 | #ifndef LWEXT4_EXT4_CRC32C_H_ |
40 | #define LWEXT4_EXT4_CRC32C_H_ |
41 | |
42 | #ifdef __cplusplus |
43 | extern "C" { |
44 | #endif |
45 | |
46 | #include <ext4_config.h> |
47 | |
48 | #include <stdint.h> |
49 | |
50 | /**@brief CRC32 algorithm. |
51 | * @param crc input feed |
52 | * @param buf input buffer |
53 | * @param size input buffer length (bytes) |
54 | * @return updated crc32 value*/ |
55 | uint32_t ext4_crc32(uint32_t crc, const void *buf, uint32_t size); |
56 | |
57 | /**@brief CRC32C algorithm. |
58 | * @param crc input feed |
59 | * @param buf input buffer |
60 | * @param size input buffer length (bytes) |
61 | * @return updated crc32c value*/ |
62 | uint32_t ext4_crc32c(uint32_t crc, const void *buf, uint32_t size); |
63 | |
64 | #ifdef __cplusplus |
65 | } |
66 | #endif |
67 | |
68 | #endif /* LWEXT4_EXT4_CRC32C_H_ */ |
69 | |
70 | /** |
71 | * @} |
72 | */ |
73 | |