module/zcommon/zpool_prop.c

   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 (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
  23  */
  24
  25 #include <sys/zio.h>
  26 #include <sys/spa.h>
  27 #include <sys/zfs_acl.h>
  28 #include <sys/zfs_ioctl.h>
  29 #include <sys/fs/zfs.h>
  30
  31 #include "zfs_prop.h"
  32
  33 #if defined(_KERNEL)
  34 #include <sys/systm.h>
  35 #else
  36 #include <stdlib.h>
  37 #include <string.h>
  38 #include <ctype.h>
  39 #endif
  40
  41 static zprop_desc_t zpool_prop_table[ZPOOL_NUM_PROPS];
  42
  43 zprop_desc_t *
  44 zpool_prop_get_table(void)
  45 {
  46         return (zpool_prop_table);
  47 }
  48
  49 void
  50 zpool_prop_init(void)
  51 {
  52         static zprop_index_t boolean_table[] = {
  53                 { "off",        0},
  54                 { "on",         1},
  55                 { NULL }
  56         };
  57
  58         static zprop_index_t failuremode_table[] = {
  59                 { "wait",       ZIO_FAILURE_MODE_WAIT },
  60                 { "continue",   ZIO_FAILURE_MODE_CONTINUE },
  61                 { "panic",      ZIO_FAILURE_MODE_PANIC },
  62                 { NULL }
  63         };
  64
  65         /* string properties */
  66         zprop_register_string(ZPOOL_PROP_ALTROOT, "altroot", NULL, PROP_DEFAULT,
  67             ZFS_TYPE_POOL, "<path>", "ALTROOT");
  68         zprop_register_string(ZPOOL_PROP_BOOTFS, "bootfs", NULL, PROP_DEFAULT,
  69             ZFS_TYPE_POOL, "<filesystem>", "BOOTFS");
  70         zprop_register_string(ZPOOL_PROP_CACHEFILE, "cachefile", NULL,
  71             PROP_DEFAULT, ZFS_TYPE_POOL, "<file> | none", "CACHEFILE");
  72
  73         /* readonly number properties */
  74         zprop_register_number(ZPOOL_PROP_SIZE, "size", 0, PROP_READONLY,
  75             ZFS_TYPE_POOL, "<size>", "SIZE");
  76         zprop_register_number(ZPOOL_PROP_FREE, "free", 0, PROP_READONLY,
  77             ZFS_TYPE_POOL, "<size>", "FREE");
  78         zprop_register_number(ZPOOL_PROP_ALLOCATED, "allocated", 0,
  79             PROP_READONLY, ZFS_TYPE_POOL, "<size>", "ALLOC");
  80         zprop_register_number(ZPOOL_PROP_CAPACITY, "capacity", 0, PROP_READONLY,
  81             ZFS_TYPE_POOL, "<size>", "CAP");
  82         zprop_register_number(ZPOOL_PROP_GUID, "guid", 0, PROP_READONLY,
  83             ZFS_TYPE_POOL, "<guid>", "GUID");
  84         zprop_register_number(ZPOOL_PROP_HEALTH, "health", 0, PROP_READONLY,
  85             ZFS_TYPE_POOL, "<state>", "HEALTH");
  86         zprop_register_number(ZPOOL_PROP_DEDUPRATIO, "dedupratio", 0,
  87             PROP_READONLY, ZFS_TYPE_POOL, "<1.00x or higher if deduped>",
  88             "DEDUP");
  89
  90         /* readonly onetime number properties */
  91         zprop_register_number(ZPOOL_PROP_ASHIFT, "ashift", 0, PROP_ONETIME,
  92             ZFS_TYPE_POOL, "<ashift, 9-12, or 0=default>", "ASHIFT");
  93
  94         /* default number properties */
  95         zprop_register_number(ZPOOL_PROP_VERSION, "version", SPA_VERSION,
  96             PROP_DEFAULT, ZFS_TYPE_POOL, "<version>", "VERSION");
  97         zprop_register_number(ZPOOL_PROP_DEDUPDITTO, "dedupditto", 0,
  98             PROP_DEFAULT, ZFS_TYPE_POOL, "<threshold (min 100)>", "DEDUPDITTO");
  99
 100         /* default index (boolean) properties */
 101         zprop_register_index(ZPOOL_PROP_DELEGATION, "delegation", 1,
 102             PROP_DEFAULT, ZFS_TYPE_POOL, "on | off", "DELEGATION",
 103             boolean_table);
 104         zprop_register_index(ZPOOL_PROP_AUTOREPLACE, "autoreplace", 0,
 105             PROP_DEFAULT, ZFS_TYPE_POOL, "on | off", "REPLACE", boolean_table);
 106         zprop_register_index(ZPOOL_PROP_LISTSNAPS, "listsnapshots", 0,
 107             PROP_DEFAULT, ZFS_TYPE_POOL, "on | off", "LISTSNAPS",
 108             boolean_table);
 109         zprop_register_index(ZPOOL_PROP_AUTOEXPAND, "autoexpand", 0,
 110             PROP_DEFAULT, ZFS_TYPE_POOL, "on | off", "EXPAND", boolean_table);
 111         zprop_register_index(ZPOOL_PROP_READONLY, "readonly", 0,
 112             PROP_DEFAULT, ZFS_TYPE_POOL, "on | off", "RDONLY", boolean_table);
 113
 114         /* default index properties */
 115         zprop_register_index(ZPOOL_PROP_FAILUREMODE, "failmode",
 116             ZIO_FAILURE_MODE_WAIT, PROP_DEFAULT, ZFS_TYPE_POOL,
 117             "wait | continue | panic", "FAILMODE", failuremode_table);
 118
 119         /* hidden properties */
 120         zprop_register_hidden(ZPOOL_PROP_NAME, "name", PROP_TYPE_STRING,
 121             PROP_READONLY, ZFS_TYPE_POOL, "NAME");
 122 }
 123
 124 /*
 125  * Given a property name and its type, returns the corresponding property ID.
 126  */
 127 zpool_prop_t
 128 zpool_name_to_prop(const char *propname)
 129 {
 130         return (zprop_name_to_prop(propname, ZFS_TYPE_POOL));
 131 }
 132
 133 /*
 134  * Given a pool property ID, returns the corresponding name.
 135  * Assuming the pool propety ID is valid.
 136  */
 137 const char *
 138 zpool_prop_to_name(zpool_prop_t prop)
 139 {
 140         return (zpool_prop_table[prop].pd_name);
 141 }
 142
 143 zprop_type_t
 144 zpool_prop_get_type(zpool_prop_t prop)
 145 {
 146         return (zpool_prop_table[prop].pd_proptype);
 147 }
 148
 149 boolean_t
 150 zpool_prop_readonly(zpool_prop_t prop)
 151 {
 152         return (zpool_prop_table[prop].pd_attr == PROP_READONLY);
 153 }
 154
 155 const char *
 156 zpool_prop_default_string(zpool_prop_t prop)
 157 {
 158         return (zpool_prop_table[prop].pd_strdefault);
 159 }
 160
 161 uint64_t
 162 zpool_prop_default_numeric(zpool_prop_t prop)
 163 {
 164         return (zpool_prop_table[prop].pd_numdefault);
 165 }
 166
 167 int
 168 zpool_prop_string_to_index(zpool_prop_t prop, const char *string,
 169     uint64_t *index)
 170 {
 171         return (zprop_string_to_index(prop, string, index, ZFS_TYPE_POOL));
 172 }
 173
 174 int
 175 zpool_prop_index_to_string(zpool_prop_t prop, uint64_t index,
 176     const char **string)
 177 {
 178         return (zprop_index_to_string(prop, index, string, ZFS_TYPE_POOL));
 179 }
 180
 181 uint64_t
 182 zpool_prop_random_value(zpool_prop_t prop, uint64_t seed)
 183 {
 184         return (zprop_random_value(prop, seed, ZFS_TYPE_POOL));
 185 }
 186
 187 #ifndef _KERNEL
 188
 189 const char *
 190 zpool_prop_values(zpool_prop_t prop)
 191 {
 192         return (zpool_prop_table[prop].pd_values);
 193 }
 194
 195 const char *
 196 zpool_prop_column_name(zpool_prop_t prop)
 197 {
 198         return (zpool_prop_table[prop].pd_colname);
 199 }
 200
 201 boolean_t
 202 zpool_prop_align_right(zpool_prop_t prop)
 203 {
 204         return (zpool_prop_table[prop].pd_rightalign);
 205 }
 206 #endif
 207
 208 #if defined(_KERNEL) && defined(HAVE_SPL)
 209 /* zpool property functions */
 210 EXPORT_SYMBOL(zpool_prop_init);
 211 EXPORT_SYMBOL(zpool_prop_get_type);
 212 EXPORT_SYMBOL(zpool_prop_get_table);
 213
 214 /* Pool property functions shared between libzfs and kernel. */
 215 EXPORT_SYMBOL(zpool_name_to_prop);
 216 EXPORT_SYMBOL(zpool_prop_to_name);
 217 EXPORT_SYMBOL(zpool_prop_default_string);
 218 EXPORT_SYMBOL(zpool_prop_default_numeric);
 219 EXPORT_SYMBOL(zpool_prop_readonly);
 220 EXPORT_SYMBOL(zpool_prop_index_to_string);
 221 EXPORT_SYMBOL(zpool_prop_string_to_index);
 222 #endif