]>
Commit | Line | Data |
---|---|---|
34dc7c2f BB |
1 | /* |
2 | * CDDL HEADER START | |
3 | * | |
4 | * The contents of this file are subject to the terms of the | |
5 | * Common Development and Distribution License (the "License"). | |
6 | * You may not use this file except in compliance with the License. | |
7 | * | |
8 | * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE | |
9 | * or http://www.opensolaris.org/os/licensing. | |
10 | * See the License for the specific language governing permissions | |
11 | * and limitations under the License. | |
12 | * | |
13 | * When distributing Covered Code, include this CDDL HEADER in each | |
14 | * file and include the License file at usr/src/OPENSOLARIS.LICENSE. | |
15 | * If applicable, add the following below this CDDL HEADER, with the | |
16 | * fields enclosed by brackets "[]" replaced with your own identifying | |
17 | * information: Portions Copyright [yyyy] [name of copyright owner] | |
18 | * | |
19 | * CDDL HEADER END | |
20 | */ | |
21 | /* | |
3c67d83a | 22 | * Copyright 2009 Sun Microsystems, Inc. All rights reserved. |
34dc7c2f BB |
23 | * Use is subject to license terms. |
24 | */ | |
3c67d83a TH |
25 | /* |
26 | * Copyright 2013 Saso Kiselkov. All rights reserved. | |
27 | */ | |
34dc7c2f BB |
28 | #include <sys/zfs_context.h> |
29 | #include <sys/zio.h> | |
9c905c55 | 30 | #include <sys/zio_checksum.h> |
3c67d83a | 31 | #include <sys/sha2.h> |
9c905c55 | 32 | |
3c67d83a TH |
33 | /*ARGSUSED*/ |
34 | void | |
35 | zio_checksum_SHA256(const void *buf, uint64_t size, | |
36 | const void *ctx_template, zio_cksum_t *zcp) | |
9c905c55 | 37 | { |
3c67d83a TH |
38 | SHA2_CTX ctx; |
39 | zio_cksum_t tmp; | |
40 | ||
41 | SHA2Init(SHA256, &ctx); | |
42 | SHA2Update(&ctx, buf, size); | |
43 | SHA2Final(&tmp, &ctx); | |
44 | ||
45 | /* | |
46 | * A prior implementation of this function had a | |
47 | * private SHA256 implementation always wrote things out in | |
48 | * Big Endian and there wasn't a byteswap variant of it. | |
49 | * To preseve on disk compatibility we need to force that | |
50 | * behaviour. | |
51 | */ | |
52 | zcp->zc_word[0] = BE_64(tmp.zc_word[0]); | |
53 | zcp->zc_word[1] = BE_64(tmp.zc_word[1]); | |
54 | zcp->zc_word[2] = BE_64(tmp.zc_word[2]); | |
55 | zcp->zc_word[3] = BE_64(tmp.zc_word[3]); | |
9c905c55 | 56 | } |
34dc7c2f | 57 | |
3c67d83a | 58 | /*ARGSUSED*/ |
34dc7c2f | 59 | void |
3c67d83a TH |
60 | zio_checksum_SHA512_native(const void *buf, uint64_t size, |
61 | const void *ctx_template, zio_cksum_t *zcp) | |
34dc7c2f | 62 | { |
3c67d83a | 63 | SHA2_CTX ctx; |
9c905c55 | 64 | |
3c67d83a TH |
65 | SHA2Init(SHA512_256, &ctx); |
66 | SHA2Update(&ctx, buf, size); | |
67 | SHA2Final(zcp, &ctx); | |
68 | } | |
9c905c55 | 69 | |
3c67d83a TH |
70 | /*ARGSUSED*/ |
71 | void | |
72 | zio_checksum_SHA512_byteswap(const void *buf, uint64_t size, | |
73 | const void *ctx_template, zio_cksum_t *zcp) | |
74 | { | |
75 | zio_cksum_t tmp; | |
9c905c55 | 76 | |
3c67d83a TH |
77 | zio_checksum_SHA512_native(buf, size, ctx_template, &tmp); |
78 | zcp->zc_word[0] = BSWAP_64(tmp.zc_word[0]); | |
79 | zcp->zc_word[1] = BSWAP_64(tmp.zc_word[1]); | |
80 | zcp->zc_word[2] = BSWAP_64(tmp.zc_word[2]); | |
81 | zcp->zc_word[3] = BSWAP_64(tmp.zc_word[3]); | |
34dc7c2f | 82 | } |