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, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #ifndef _SYS_ZIO_CHECKSUM_H 28 #define _SYS_ZIO_CHECKSUM_H 29 30 #pragma ident "%Z%%M% %I% %E% SMI" 31 32 #include <sys/zio.h> 33 34 #ifdef __cplusplus 35 extern "C" { 36 #endif 37 38 /* 39 * Signature for checksum functions. 40 */ 41 typedef void zio_checksum_t(const void *data, uint64_t size, zio_cksum_t *zcp); 42 43 /* 44 * Information about each checksum function. 45 */ 46 typedef struct zio_checksum_info { 47 zio_checksum_t *ci_func[2]; /* checksum function for each byteorder */ 48 int ci_correctable; /* number of correctable bits */ 49 int ci_zbt; /* uses zio block tail? */ 50 char *ci_name; /* descriptive name */ 51 } zio_checksum_info_t; 52 53 extern zio_checksum_info_t zio_checksum_table[ZIO_CHECKSUM_FUNCTIONS]; 54 55 /* 56 * Checksum routines. 57 */ 58 extern zio_checksum_t fletcher_2_native; 59 extern zio_checksum_t fletcher_4_native; 60 61 extern zio_checksum_t fletcher_2_byteswap; 62 extern zio_checksum_t fletcher_4_byteswap; 63 64 extern zio_checksum_t zio_checksum_SHA256; 65 66 extern void zio_checksum(uint_t checksum, zio_cksum_t *zcp, 67 void *data, uint64_t size); 68 extern int zio_checksum_error(zio_t *zio); 69 70 #ifdef __cplusplus 71 } 72 #endif 73 74 #endif /* _SYS_ZIO_CHECKSUM_H */ 75