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.
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.
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]
22 * Copyright 2009 Sun Microsystems, Inc. All rights reserved.
23 * Use is subject to license terms.
25 #include <sys/zfs_context.h>
28 #include <crypto/sha2/sha2.h>
34 zio_checksum_SHA256(const void *buf, uint64_t size, zio_cksum_t *zcp)
40 SHA256_Update(&ctx, buf, size);
41 SHA256_Final((unsigned char *)&tmp, &ctx);
44 * A prior implementation of this function had a
45 * private SHA256 implementation always wrote things out in
46 * Big Endian and there wasn't a byteswap variant of it.
47 * To preseve on disk compatibility we need to force that
50 zcp->zc_word[0] = BE_64(tmp.zc_word[0]);
51 zcp->zc_word[1] = BE_64(tmp.zc_word[1]);
52 zcp->zc_word[2] = BE_64(tmp.zc_word[2]);
53 zcp->zc_word[3] = BE_64(tmp.zc_word[3]);