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 2008 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 #include <sys/zio.h> 30 31 #ifdef __cplusplus 32 extern "C" { 33 #endif 34 35 /* 36 * Signature for checksum functions. 37 */ 38 typedef void zio_checksum_t(const void *data, uint64_t size, zio_cksum_t *zcp); 39 40 /* 41 * Information about each checksum function. 42 */ 43 typedef struct zio_checksum_info { 44 zio_checksum_t *ci_func[2]; /* checksum function for each byteorder */ 45 int ci_correctable; /* number of correctable bits */ 46 int ci_zbt; /* uses zio block tail? */ 47 char *ci_name; /* descriptive name */ 48 } zio_checksum_info_t; 49 50 extern zio_checksum_info_t zio_checksum_table[ZIO_CHECKSUM_FUNCTIONS]; 51 52 /* 53 * Checksum routines. 54 */ 55 extern zio_checksum_t fletcher_2_native; 56 extern zio_checksum_t fletcher_4_native; 57 extern zio_checksum_t fletcher_4_incremental_native; 58 59 extern zio_checksum_t fletcher_2_byteswap; 60 extern zio_checksum_t fletcher_4_byteswap; 61 extern zio_checksum_t fletcher_4_incremental_byteswap; 62 63 extern zio_checksum_t zio_checksum_SHA256; 64 65 extern void zio_checksum_compute(zio_t *zio, enum zio_checksum checksum, 66 void *data, uint64_t size); 67 extern int zio_checksum_error(zio_t *zio); 68 69 #ifdef __cplusplus 70 } 71 #endif 72 73 #endif /* _SYS_ZIO_CHECKSUM_H */ 74