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 2010 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 #ifndef _ZFS_PROP_H 27 #define _ZFS_PROP_H extern __attribute__((visibility("default"))) 28 29 #include <sys/fs/zfs.h> 30 #include <sys/types.h> 31 #include <sys/zfs_sysfs.h> 32 33 #ifdef __cplusplus 34 extern "C" { 35 #endif 36 37 /* 38 * For index types (e.g. compression and checksum), we want the numeric value 39 * in the kernel, but the string value in userland. 40 */ 41 typedef enum { 42 PROP_TYPE_NUMBER, /* numeric value */ 43 PROP_TYPE_STRING, /* string value */ 44 PROP_TYPE_INDEX /* numeric value indexed by string */ 45 } zprop_type_t; 46 47 typedef enum { 48 PROP_DEFAULT, 49 PROP_READONLY, 50 PROP_INHERIT, 51 /* 52 * ONETIME properties are a sort of conglomeration of READONLY 53 * and INHERIT. They can be set only during object creation, 54 * after that they are READONLY. If not explicitly set during 55 * creation, they can be inherited. ONETIME_DEFAULT properties 56 * work the same way, but they will default instead of 57 * inheriting a value. 58 */ 59 PROP_ONETIME, 60 PROP_ONETIME_DEFAULT 61 } zprop_attr_t; 62 63 typedef struct zfs_index { 64 const char *pi_name; 65 uint64_t pi_value; 66 } zprop_index_t; 67 68 typedef struct { 69 const char *pd_name; /* human-readable property name */ 70 int pd_propnum; /* property number */ 71 zprop_type_t pd_proptype; /* string, boolean, index, number */ 72 const char *pd_strdefault; /* default for strings */ 73 uint64_t pd_numdefault; /* for boolean / index / number */ 74 zprop_attr_t pd_attr; /* default, readonly, inherit */ 75 int pd_types; /* bitfield of valid dataset types */ 76 /* fs | vol | snap; or pool */ 77 const char *pd_values; /* string telling acceptable values */ 78 const char *pd_colname; /* column header for "zfs list" */ 79 boolean_t pd_rightalign: 1; /* column alignment for "zfs list" */ 80 boolean_t pd_visible: 1; /* do we list this property with the */ 81 /* "zfs get" help message */ 82 boolean_t pd_zfs_mod_supported: 1; /* supported by running zfs module */ 83 boolean_t pd_always_flex: 1; /* never fixed-width */ 84 const zprop_index_t *pd_table; /* for index properties, a table */ 85 /* defining the possible values */ 86 size_t pd_table_size; /* number of entries in pd_table[] */ 87 } zprop_desc_t; 88 89 /* 90 * zfs dataset property functions 91 */ 92 _ZFS_PROP_H void zfs_prop_init(void); 93 _ZFS_PROP_H zprop_type_t zfs_prop_get_type(zfs_prop_t); 94 _ZFS_PROP_H boolean_t zfs_prop_delegatable(zfs_prop_t prop); 95 _ZFS_PROP_H zprop_desc_t *zfs_prop_get_table(void); 96 97 /* 98 * zpool property functions 99 */ 100 _ZFS_PROP_H void zpool_prop_init(void); 101 _ZFS_PROP_H zprop_type_t zpool_prop_get_type(zpool_prop_t); 102 _ZFS_PROP_H zprop_desc_t *zpool_prop_get_table(void); 103 104 /* 105 * vdev property functions 106 */ 107 _ZFS_PROP_H void vdev_prop_init(void); 108 _ZFS_PROP_H zprop_type_t vdev_prop_get_type(vdev_prop_t prop); 109 _ZFS_PROP_H zprop_desc_t *vdev_prop_get_table(void); 110 111 /* 112 * Common routines to initialize property tables 113 */ 114 _ZFS_PROP_H void zprop_register_impl(int, const char *, zprop_type_t, uint64_t, 115 const char *, zprop_attr_t, int, const char *, const char *, 116 boolean_t, boolean_t, boolean_t, const zprop_index_t *, 117 const struct zfs_mod_supported_features *); 118 _ZFS_PROP_H void zprop_register_string(int, const char *, const char *, 119 zprop_attr_t attr, int, const char *, const char *, 120 const struct zfs_mod_supported_features *); 121 _ZFS_PROP_H void zprop_register_number(int, const char *, uint64_t, 122 zprop_attr_t, int, const char *, const char *, boolean_t, 123 const struct zfs_mod_supported_features *); 124 _ZFS_PROP_H void zprop_register_index(int, const char *, uint64_t, zprop_attr_t, 125 int, const char *, const char *, const zprop_index_t *, 126 const struct zfs_mod_supported_features *); 127 _ZFS_PROP_H void zprop_register_hidden(int, const char *, zprop_type_t, 128 zprop_attr_t, int, const char *, boolean_t, 129 const struct zfs_mod_supported_features *); 130 131 /* 132 * Common routines for zfs and zpool property management 133 */ 134 _ZFS_PROP_H int zprop_iter_common(zprop_func, void *, boolean_t, boolean_t, 135 zfs_type_t); 136 _ZFS_PROP_H int zprop_name_to_prop(const char *, zfs_type_t); 137 _ZFS_PROP_H int zprop_string_to_index(int, const char *, uint64_t *, 138 zfs_type_t); 139 _ZFS_PROP_H int zprop_index_to_string(int, uint64_t, const char **, 140 zfs_type_t); 141 _ZFS_PROP_H uint64_t zprop_random_value(int, uint64_t, zfs_type_t); 142 _ZFS_PROP_H const char *zprop_values(int, zfs_type_t); 143 _ZFS_PROP_H size_t zprop_width(int, boolean_t *, zfs_type_t); 144 _ZFS_PROP_H boolean_t zprop_valid_for_type(int, zfs_type_t, boolean_t); 145 _ZFS_PROP_H int zprop_valid_char(char c); 146 147 #ifdef __cplusplus 148 } 149 #endif 150 151 #endif /* _ZFS_PROP_H */ 152