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 2009 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 28 29 #include <sys/fs/zfs.h> 30 #include <sys/types.h> 31 32 #ifdef __cplusplus 33 extern "C" { 34 #endif 35 36 /* 37 * For index types (e.g. compression and checksum), we want the numeric value 38 * in the kernel, but the string value in userland. 39 */ 40 typedef enum { 41 PROP_TYPE_NUMBER, /* numeric value */ 42 PROP_TYPE_STRING, /* string value */ 43 PROP_TYPE_INDEX /* numeric value indexed by string */ 44 } zprop_type_t; 45 46 typedef enum { 47 PROP_DEFAULT, 48 PROP_READONLY, 49 PROP_INHERIT, 50 /* 51 * ONETIME properties are a sort of conglomeration of READONLY 52 * and INHERIT. They can be set only during object creation, 53 * after that they are READONLY. If not explicitly set during 54 * creation, they can be inherited. 55 */ 56 PROP_ONETIME 57 } zprop_attr_t; 58 59 typedef struct zfs_index { 60 const char *pi_name; 61 uint64_t pi_value; 62 } zprop_index_t; 63 64 typedef struct { 65 const char *pd_name; /* human-readable property name */ 66 int pd_propnum; /* property number */ 67 zprop_type_t pd_proptype; /* string, boolean, index, number */ 68 const char *pd_strdefault; /* default for strings */ 69 uint64_t pd_numdefault; /* for boolean / index / number */ 70 zprop_attr_t pd_attr; /* default, readonly, inherit */ 71 int pd_types; /* bitfield of valid dataset types */ 72 /* fs | vol | snap; or pool */ 73 const char *pd_values; /* string telling acceptable values */ 74 const char *pd_colname; /* column header for "zfs list" */ 75 boolean_t pd_rightalign; /* column alignment for "zfs list" */ 76 boolean_t pd_visible; /* do we list this property with the */ 77 /* "zfs get" help message */ 78 const zprop_index_t *pd_table; /* for index properties, a table */ 79 /* defining the possible values */ 80 size_t pd_table_size; /* number of entries in pd_table[] */ 81 } zprop_desc_t; 82 83 /* 84 * zfs dataset property functions 85 */ 86 void zfs_prop_init(void); 87 zprop_type_t zfs_prop_get_type(zfs_prop_t); 88 boolean_t zfs_prop_delegatable(zfs_prop_t prop); 89 zprop_desc_t *zfs_prop_get_table(void); 90 91 /* 92 * zpool property functions 93 */ 94 void zpool_prop_init(void); 95 zprop_type_t zpool_prop_get_type(zpool_prop_t); 96 zprop_desc_t *zpool_prop_get_table(void); 97 98 /* 99 * Common routines to initialize property tables 100 */ 101 void register_impl(int, const char *, zprop_type_t, uint64_t, 102 const char *, zprop_attr_t, int, const char *, const char *, 103 boolean_t, boolean_t, const zprop_index_t *); 104 void register_string(int, const char *, const char *, zprop_attr_t attr, 105 int, const char *, const char *); 106 void register_number(int, const char *, uint64_t, zprop_attr_t, int, 107 const char *, const char *); 108 void register_index(int, const char *, uint64_t, zprop_attr_t, int, 109 const char *, const char *, const zprop_index_t *); 110 void register_hidden(int, const char *, zprop_type_t, zprop_attr_t, 111 int, const char *); 112 113 /* 114 * Common routines for zfs and zpool property management 115 */ 116 int zprop_iter_common(zprop_func, void *, boolean_t, boolean_t, zfs_type_t); 117 int zprop_name_to_prop(const char *, zfs_type_t); 118 int zprop_string_to_index(int, const char *, uint64_t *, zfs_type_t); 119 int zprop_index_to_string(int, uint64_t, const char **, zfs_type_t); 120 uint64_t zprop_random_value(int, uint64_t, zfs_type_t); 121 const char *zprop_values(int, zfs_type_t); 122 size_t zprop_width(int, boolean_t *, zfs_type_t); 123 boolean_t zprop_valid_for_type(int, zfs_type_t); 124 125 #ifdef __cplusplus 126 } 127 #endif 128 129 #endif /* _ZFS_PROP_H */ 130