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blkptr.c
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fletcher.c
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lzjb.c
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sha256.c
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skein_zfs.c
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zle.c
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Editing: skein_zfs.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://opensource.org/licenses/CDDL-1.0. * 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 * * $FreeBSD$ */ /* * Copyright 2013 Saso Kiselkov. All rights reserved. */ #include <skein.h> /* * Computes a native 256-bit skein MAC checksum. Please note that this * function requires the presence of a ctx_template that should be allocated * using zio_checksum_skein_tmpl_init. */ /*ARGSUSED*/ static void zio_checksum_skein_native(const void *buf, uint64_t size, const void *ctx_template, zio_cksum_t *zcp) { Skein_512_Ctxt_t ctx; ASSERT(ctx_template != NULL); bcopy(ctx_template, &ctx, sizeof (ctx)); (void) Skein_512_Update(&ctx, buf, size); (void) Skein_512_Final(&ctx, (uint8_t *)zcp); bzero(&ctx, sizeof (ctx)); } /* * Byteswapped version of zio_checksum_skein_native. This just invokes * the native checksum function and byteswaps the resulting checksum (since * skein is internally endian-insensitive). */ static void zio_checksum_skein_byteswap(const void *buf, uint64_t size, const void *ctx_template, zio_cksum_t *zcp) { zio_cksum_t tmp; zio_checksum_skein_native(buf, 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]); } /* * Allocates a skein MAC template suitable for using in skein MAC checksum * computations and returns a pointer to it. */ static void * zio_checksum_skein_tmpl_init(const zio_cksum_salt_t *salt) { Skein_512_Ctxt_t *ctx; ctx = malloc(sizeof (*ctx)); bzero(ctx, sizeof (*ctx)); (void) Skein_512_InitExt(ctx, sizeof (zio_cksum_t) * 8, 0, salt->zcs_bytes, sizeof (salt->zcs_bytes)); return (ctx); } /* * Frees a skein context template previously allocated using * zio_checksum_skein_tmpl_init. */ static void zio_checksum_skein_tmpl_free(void *ctx_template) { Skein_512_Ctxt_t *ctx = ctx_template; bzero(ctx, sizeof (*ctx)); free(ctx); }
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