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 /* 23 * Copyright (c) 2012 by Delphix. All rights reserved. 24 */ 25 26 #ifndef _ZFEATURE_COMMON_H 27 #define _ZFEATURE_COMMON_H 28 29 #include <sys/fs/zfs.h> 30 #include <sys/inttypes.h> 31 #include <sys/types.h> 32 33 #ifdef __cplusplus 34 extern "C" { 35 #endif 36 37 struct zfeature_info; 38 39 typedef struct zfeature_info { 40 const char *fi_uname; /* User-facing feature name */ 41 const char *fi_guid; /* On-disk feature identifier */ 42 const char *fi_desc; /* Feature description */ 43 boolean_t fi_can_readonly; /* Can open pool readonly w/o support? */ 44 boolean_t fi_mos; /* Is the feature necessary to read the MOS? */ 45 struct zfeature_info **fi_depends; /* array; null terminated */ 46 } zfeature_info_t; 47 48 typedef int (zfeature_func_t)(zfeature_info_t *fi, void *arg); 49 50 #define ZFS_FEATURE_DEBUG 51 52 enum spa_feature { 53 SPA_FEATURE_ASYNC_DESTROY, 54 SPA_FEATURES 55 } spa_feature_t; 56 57 extern zfeature_info_t spa_feature_table[SPA_FEATURES]; 58 59 extern boolean_t zfeature_is_valid_guid(const char *); 60 61 extern boolean_t zfeature_is_supported(const char *); 62 extern int zfeature_lookup_guid(const char *, zfeature_info_t **res); 63 extern int zfeature_lookup_name(const char *, zfeature_info_t **res); 64 65 extern void zpool_feature_init(void); 66 67 #ifdef __cplusplus 68 } 69 #endif 70 71 #endif /* _ZFEATURE_COMMON_H */ 72