92 lines
2.5 KiB
C
92 lines
2.5 KiB
C
/*
|
|
* CDDL HEADER START
|
|
*
|
|
* The contents of this file are subject to the terms of the
|
|
* Common Development and Distribution License (the "License").
|
|
* You may not use this file except in compliance with the License.
|
|
*
|
|
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
|
|
* or http://www.opensolaris.org/os/licensing.
|
|
* See the License for the specific language governing permissions
|
|
* and limitations under the License.
|
|
*
|
|
* When distributing Covered Code, include this CDDL HEADER in each
|
|
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
|
|
* If applicable, add the following below this CDDL HEADER, with the
|
|
* fields enclosed by brackets "[]" replaced with your own identifying
|
|
* information: Portions Copyright [yyyy] [name of copyright owner]
|
|
*
|
|
* CDDL HEADER END
|
|
*/
|
|
/*
|
|
* Copyright 2009 Sun Microsystems, Inc. All rights reserved.
|
|
* Use is subject to license terms.
|
|
*/
|
|
/*
|
|
* Copyright 2013 Saso Kiselkov. All rights reserved.
|
|
* Copyright (c) 2016 by Delphix. All rights reserved.
|
|
*/
|
|
#include <sys/zfs_context.h>
|
|
#include <sys/zio.h>
|
|
#include <sys/sha2.h>
|
|
#include <sys/abd.h>
|
|
|
|
static int
|
|
sha_incremental(void *buf, size_t size, void *arg)
|
|
{
|
|
SHA2_CTX *ctx = arg;
|
|
SHA2Update(ctx, buf, size);
|
|
return (0);
|
|
}
|
|
|
|
/*ARGSUSED*/
|
|
void
|
|
abd_checksum_SHA256(abd_t *abd, uint64_t size,
|
|
const void *ctx_template, zio_cksum_t *zcp)
|
|
{
|
|
SHA2_CTX ctx;
|
|
zio_cksum_t tmp;
|
|
|
|
SHA2Init(SHA256, &ctx);
|
|
(void) abd_iterate_func(abd, 0, size, sha_incremental, &ctx);
|
|
SHA2Final(&tmp, &ctx);
|
|
|
|
/*
|
|
* A prior implementation of this function had a
|
|
* private SHA256 implementation always wrote things out in
|
|
* Big Endian and there wasn't a byteswap variant of it.
|
|
* To preserve on disk compatibility we need to force that
|
|
* behavior.
|
|
*/
|
|
zcp->zc_word[0] = BE_64(tmp.zc_word[0]);
|
|
zcp->zc_word[1] = BE_64(tmp.zc_word[1]);
|
|
zcp->zc_word[2] = BE_64(tmp.zc_word[2]);
|
|
zcp->zc_word[3] = BE_64(tmp.zc_word[3]);
|
|
}
|
|
|
|
/*ARGSUSED*/
|
|
void
|
|
abd_checksum_SHA512_native(abd_t *abd, uint64_t size,
|
|
const void *ctx_template, zio_cksum_t *zcp)
|
|
{
|
|
SHA2_CTX ctx;
|
|
|
|
SHA2Init(SHA512_256, &ctx);
|
|
(void) abd_iterate_func(abd, 0, size, sha_incremental, &ctx);
|
|
SHA2Final(zcp, &ctx);
|
|
}
|
|
|
|
/*ARGSUSED*/
|
|
void
|
|
abd_checksum_SHA512_byteswap(abd_t *abd, uint64_t size,
|
|
const void *ctx_template, zio_cksum_t *zcp)
|
|
{
|
|
zio_cksum_t tmp;
|
|
|
|
abd_checksum_SHA512_native(abd, size, ctx_template, &tmp);
|
|
zcp->zc_word[0] = BSWAP_64(tmp.zc_word[0]);
|
|
zcp->zc_word[1] = BSWAP_64(tmp.zc_word[1]);
|
|
zcp->zc_word[2] = BSWAP_64(tmp.zc_word[2]);
|
|
zcp->zc_word[3] = BSWAP_64(tmp.zc_word[3]);
|
|
}
|