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 /* 22 * Copyright 2006 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 #ifndef _SYS_ZIO_CHECKSUM_H 27 #define _SYS_ZIO_CHECKSUM_H 28 29 #pragma ident "%Z%%M% %I% %E% SMI" 30 31 #include <sys/zio.h> 32 33 #ifdef __cplusplus 34 extern "C" { 35 #endif 36 37 /* 38 * Signature for checksum functions. 39 */ 40 typedef void zio_checksum_t(const void *data, uint64_t size, zio_cksum_t *zcp); 41 42 /* 43 * Information about each checksum function. 44 */ 45 typedef struct zio_checksum_info { 46 zio_checksum_t *ci_func[2]; /* checksum function for each byteorder */ 47 int ci_correctable; /* number of correctable bits */ 48 int ci_zbt; /* uses zio block tail? */ 49 char *ci_name; /* descriptive name */ 50 } zio_checksum_info_t; 51 52 extern zio_checksum_info_t zio_checksum_table[ZIO_CHECKSUM_FUNCTIONS]; 53 54 /* 55 * Checksum routines. 56 */ 57 extern zio_checksum_t fletcher_2_native; 58 extern zio_checksum_t fletcher_4_native; 59 extern zio_checksum_t fletcher_4_incremental_native; 60 61 extern zio_checksum_t fletcher_2_byteswap; 62 extern zio_checksum_t fletcher_4_byteswap; 63 extern zio_checksum_t fletcher_4_incremental_byteswap; 64 65 extern zio_checksum_t zio_checksum_SHA256; 66 67 extern void zio_checksum(uint_t checksum, zio_cksum_t *zcp, 68 void *data, uint64_t size); 69 extern int zio_checksum_error(zio_t *zio); 70 71 #ifdef __cplusplus 72 } 73 #endif 74 75 #endif /* _SYS_ZIO_CHECKSUM_H */ 76