2c55d0903d
Updated sha512 from illumos. Using skein from freebsd crypto tree. Since loader itself is using 64MB memory for heap, updated zfsboot to use same, and this also allows to support zfs large blocks. Note, adding additional features does increate zfsboot code, therefore this update does increase zfsboot code to 128k, also I have ported gptldr.S update to zfsldr.S to support 64k+ code. With this update, boot1.efi has almost reached the current limit of the size set for it, so one of the future patches for boot1.efi will need to increase the limit. Currently known missing zfs features in boot loader are edonr and gzip support. Reviewed by: delphij, imp Approved by: imp (mentor) Obtained from: sha256.c update and skein_zfs.c stub from illumos. Differential Revision: https://reviews.freebsd.org/D7418
93 lines
2.6 KiB
C
93 lines
2.6 KiB
C
/*
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* CDDL HEADER START
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*
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* The contents of this file are subject to the terms of the
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* Common Development and Distribution License (the "License").
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* You may not use this file except in compliance with the License.
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*
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* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
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* or http://opensource.org/licenses/CDDL-1.0.
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* See the License for the specific language governing permissions
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* and limitations under the License.
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*
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* When distributing Covered Code, include this CDDL HEADER in each
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* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
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* If applicable, add the following below this CDDL HEADER, with the
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* fields enclosed by brackets "[]" replaced with your own identifying
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* information: Portions Copyright [yyyy] [name of copyright owner]
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*
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* CDDL HEADER END
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*
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* $FreeBSD$
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*/
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/*
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* Copyright 2013 Saso Kiselkov. All rights reserved.
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*/
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#include <skein.h>
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/*
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* Computes a native 256-bit skein MAC checksum. Please note that this
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* function requires the presence of a ctx_template that should be allocated
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* using zio_checksum_skein_tmpl_init.
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*/
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/*ARGSUSED*/
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static void
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zio_checksum_skein_native(const void *buf, uint64_t size,
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const void *ctx_template, zio_cksum_t *zcp)
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{
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Skein_512_Ctxt_t ctx;
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ASSERT(ctx_template != NULL);
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bcopy(ctx_template, &ctx, sizeof (ctx));
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(void) Skein_512_Update(&ctx, buf, size);
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(void) Skein_512_Final(&ctx, (uint8_t *)zcp);
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bzero(&ctx, sizeof (ctx));
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}
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/*
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* Byteswapped version of zio_checksum_skein_native. This just invokes
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* the native checksum function and byteswaps the resulting checksum (since
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* skein is internally endian-insensitive).
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*/
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static void
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zio_checksum_skein_byteswap(const void *buf, uint64_t size,
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const void *ctx_template, zio_cksum_t *zcp)
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{
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zio_cksum_t tmp;
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zio_checksum_skein_native(buf, size, ctx_template, &tmp);
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zcp->zc_word[0] = BSWAP_64(tmp.zc_word[0]);
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zcp->zc_word[1] = BSWAP_64(tmp.zc_word[1]);
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zcp->zc_word[2] = BSWAP_64(tmp.zc_word[2]);
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zcp->zc_word[3] = BSWAP_64(tmp.zc_word[3]);
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}
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/*
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* Allocates a skein MAC template suitable for using in skein MAC checksum
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* computations and returns a pointer to it.
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*/
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static void *
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zio_checksum_skein_tmpl_init(const zio_cksum_salt_t *salt)
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{
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Skein_512_Ctxt_t *ctx;
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ctx = malloc(sizeof (*ctx));
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bzero(ctx, sizeof (*ctx));
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(void) Skein_512_InitExt(ctx, sizeof (zio_cksum_t) * 8, 0,
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salt->zcs_bytes, sizeof (salt->zcs_bytes));
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return (ctx);
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}
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/*
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* Frees a skein context template previously allocated using
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* zio_checksum_skein_tmpl_init.
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*/
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static void
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zio_checksum_skein_tmpl_free(void *ctx_template)
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{
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Skein_512_Ctxt_t *ctx = ctx_template;
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bzero(ctx, sizeof (*ctx));
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free(ctx);
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}
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