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  * Copyright 2011 Nexenta Systems, Inc. All rights reserved.
  24  * Copyright (c) 2012, 2018 by Delphix. All rights reserved.
  25  */
  26
  27 #include <sys/zio.h>
  28 #include <sys/spa.h>
  29 #include <sys/zfs_acl.h>
  30 #include <sys/zfs_ioctl.h>
  31 #include <sys/fs/zfs.h>
  32
  33 #include "zfs_prop.h"
  34
  35 #if !defined(_KERNEL)
  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         zprop_register_string(ZPOOL_PROP_COMMENT, "comment", NULL,
  73             PROP_DEFAULT, ZFS_TYPE_POOL, "<comment-string>", "COMMENT");
  74
  75         /* readonly number properties */
  76         zprop_register_number(ZPOOL_PROP_SIZE, "size", 0, PROP_READONLY,
  77             ZFS_TYPE_POOL, "<size>", "SIZE");
  78         zprop_register_number(ZPOOL_PROP_FREE, "free", 0, PROP_READONLY,
  79             ZFS_TYPE_POOL, "<size>", "FREE");
  80         zprop_register_number(ZPOOL_PROP_FREEING, "freeing", 0, PROP_READONLY,
  81             ZFS_TYPE_POOL, "<size>", "FREEING");
  82         zprop_register_number(ZPOOL_PROP_CHECKPOINT, "checkpoint", 0,
  83             PROP_READONLY, ZFS_TYPE_POOL, "<size>", "CKPOINT");
  84         zprop_register_number(ZPOOL_PROP_LEAKED, "leaked", 0, PROP_READONLY,
  85             ZFS_TYPE_POOL, "<size>", "LEAKED");
  86         zprop_register_number(ZPOOL_PROP_ALLOCATED, "allocated", 0,
  87             PROP_READONLY, ZFS_TYPE_POOL, "<size>", "ALLOC");
  88         zprop_register_number(ZPOOL_PROP_EXPANDSZ, "expandsize", 0,
  89             PROP_READONLY, ZFS_TYPE_POOL, "<size>", "EXPANDSZ");
  90         zprop_register_number(ZPOOL_PROP_FRAGMENTATION, "fragmentation", 0,
  91             PROP_READONLY, ZFS_TYPE_POOL, "<percent>", "FRAG");
  92         zprop_register_number(ZPOOL_PROP_CAPACITY, "capacity", 0, PROP_READONLY,
  93             ZFS_TYPE_POOL, "<size>", "CAP");
  94         zprop_register_number(ZPOOL_PROP_GUID, "guid", 0, PROP_READONLY,
  95             ZFS_TYPE_POOL, "<guid>", "GUID");
  96         zprop_register_number(ZPOOL_PROP_LOAD_GUID, "load_guid", 0,
  97             PROP_READONLY, ZFS_TYPE_POOL, "<load_guid>", "LOAD_GUID");
  98         zprop_register_number(ZPOOL_PROP_HEALTH, "health", 0, PROP_READONLY,
  99             ZFS_TYPE_POOL, "<state>", "HEALTH");
 100         zprop_register_number(ZPOOL_PROP_DEDUPRATIO, "dedupratio", 0,
 101             PROP_READONLY, ZFS_TYPE_POOL, "<1.00x or higher if deduped>",
 102             "DEDUP");
 103
 104         /* default number properties */
 105         zprop_register_number(ZPOOL_PROP_VERSION, "version", SPA_VERSION,
 106             PROP_DEFAULT, ZFS_TYPE_POOL, "<version>", "VERSION");
 107         zprop_register_number(ZPOOL_PROP_ASHIFT, "ashift", 0, PROP_DEFAULT,
 108             ZFS_TYPE_POOL, "<ashift, 9-16, or 0=default>", "ASHIFT");
 109
 110         /* default index (boolean) properties */
 111         zprop_register_index(ZPOOL_PROP_DELEGATION, "delegation", 1,
 112             PROP_DEFAULT, ZFS_TYPE_POOL, "on | off", "DELEGATION",
 113             boolean_table);
 114         zprop_register_index(ZPOOL_PROP_AUTOREPLACE, "autoreplace", 0,
 115             PROP_DEFAULT, ZFS_TYPE_POOL, "on | off", "REPLACE", boolean_table);
 116         zprop_register_index(ZPOOL_PROP_LISTSNAPS, "listsnapshots", 0,
 117             PROP_DEFAULT, ZFS_TYPE_POOL, "on | off", "LISTSNAPS",
 118             boolean_table);
 119         zprop_register_index(ZPOOL_PROP_AUTOEXPAND, "autoexpand", 0,
 120             PROP_DEFAULT, ZFS_TYPE_POOL, "on | off", "EXPAND", boolean_table);
 121         zprop_register_index(ZPOOL_PROP_READONLY, "readonly", 0,
 122             PROP_DEFAULT, ZFS_TYPE_POOL, "on | off", "RDONLY", boolean_table);
 123         zprop_register_index(ZPOOL_PROP_MULTIHOST, "multihost", 0,
 124             PROP_DEFAULT, ZFS_TYPE_POOL, "on | off", "MULTIHOST",
 125             boolean_table);
 126
 127         /* default index properties */
 128         zprop_register_index(ZPOOL_PROP_FAILUREMODE, "failmode",
 129             ZIO_FAILURE_MODE_WAIT, PROP_DEFAULT, ZFS_TYPE_POOL,
 130             "wait | continue | panic", "FAILMODE", failuremode_table);
 131         zprop_register_index(ZPOOL_PROP_AUTOTRIM, "autotrim",
 132             SPA_AUTOTRIM_DEFAULT, PROP_DEFAULT, ZFS_TYPE_POOL,
 133             "on | off", "AUTOTRIM", boolean_table);
 134
 135         /* hidden properties */
 136         zprop_register_hidden(ZPOOL_PROP_NAME, "name", PROP_TYPE_STRING,
 137             PROP_READONLY, ZFS_TYPE_POOL, "NAME");
 138         zprop_register_hidden(ZPOOL_PROP_MAXBLOCKSIZE, "maxblocksize",
 139             PROP_TYPE_NUMBER, PROP_READONLY, ZFS_TYPE_POOL, "MAXBLOCKSIZE");
 140         zprop_register_hidden(ZPOOL_PROP_TNAME, "tname", PROP_TYPE_STRING,
 141             PROP_ONETIME, ZFS_TYPE_POOL, "TNAME");
 142         zprop_register_hidden(ZPOOL_PROP_MAXDNODESIZE, "maxdnodesize",
 143             PROP_TYPE_NUMBER, PROP_READONLY, ZFS_TYPE_POOL, "MAXDNODESIZE");
 144         zprop_register_hidden(ZPOOL_PROP_DEDUPDITTO, "dedupditto",
 145             PROP_TYPE_NUMBER, PROP_DEFAULT, ZFS_TYPE_POOL, "DEDUPDITTO");
 146 }
 147
 148 /*
 149  * Given a property name and its type, returns the corresponding property ID.
 150  */
 151 zpool_prop_t
 152 zpool_name_to_prop(const char *propname)
 153 {
 154         return (zprop_name_to_prop(propname, ZFS_TYPE_POOL));
 155 }
 156
 157 /*
 158  * Given a pool property ID, returns the corresponding name.
 159  * Assuming the pool property ID is valid.
 160  */
 161 const char *
 162 zpool_prop_to_name(zpool_prop_t prop)
 163 {
 164         return (zpool_prop_table[prop].pd_name);
 165 }
 166
 167 zprop_type_t
 168 zpool_prop_get_type(zpool_prop_t prop)
 169 {
 170         return (zpool_prop_table[prop].pd_proptype);
 171 }
 172
 173 boolean_t
 174 zpool_prop_readonly(zpool_prop_t prop)
 175 {
 176         return (zpool_prop_table[prop].pd_attr == PROP_READONLY);
 177 }
 178
 179 boolean_t
 180 zpool_prop_setonce(zpool_prop_t prop)
 181 {
 182         return (zpool_prop_table[prop].pd_attr == PROP_ONETIME);
 183 }
 184
 185 const char *
 186 zpool_prop_default_string(zpool_prop_t prop)
 187 {
 188         return (zpool_prop_table[prop].pd_strdefault);
 189 }
 190
 191 uint64_t
 192 zpool_prop_default_numeric(zpool_prop_t prop)
 193 {
 194         return (zpool_prop_table[prop].pd_numdefault);
 195 }
 196
 197 /*
 198  * Returns true if this is a valid feature@ property.
 199  */
 200 boolean_t
 201 zpool_prop_feature(const char *name)
 202 {
 203         static const char *prefix = "feature@";
 204         return (strncmp(name, prefix, strlen(prefix)) == 0);
 205 }
 206
 207 /*
 208  * Returns true if this is a valid unsupported@ property.
 209  */
 210 boolean_t
 211 zpool_prop_unsupported(const char *name)
 212 {
 213         static const char *prefix = "unsupported@";
 214         return (strncmp(name, prefix, strlen(prefix)) == 0);
 215 }
 216
 217 int
 218 zpool_prop_string_to_index(zpool_prop_t prop, const char *string,
 219     uint64_t *index)
 220 {
 221         return (zprop_string_to_index(prop, string, index, ZFS_TYPE_POOL));
 222 }
 223
 224 int
 225 zpool_prop_index_to_string(zpool_prop_t prop, uint64_t index,
 226     const char **string)
 227 {
 228         return (zprop_index_to_string(prop, index, string, ZFS_TYPE_POOL));
 229 }
 230
 231 uint64_t
 232 zpool_prop_random_value(zpool_prop_t prop, uint64_t seed)
 233 {
 234         return (zprop_random_value(prop, seed, ZFS_TYPE_POOL));
 235 }
 236
 237 #ifndef _KERNEL
 238 #include <libzfs.h>
 239
 240 const char *
 241 zpool_prop_values(zpool_prop_t prop)
 242 {
 243         return (zpool_prop_table[prop].pd_values);
 244 }
 245
 246 const char *
 247 zpool_prop_column_name(zpool_prop_t prop)
 248 {
 249         return (zpool_prop_table[prop].pd_colname);
 250 }
 251
 252 boolean_t
 253 zpool_prop_align_right(zpool_prop_t prop)
 254 {
 255         return (zpool_prop_table[prop].pd_rightalign);
 256 }
 257 #endif
 258
 259 #if defined(_KERNEL)
 260 /* zpool property functions */
 261 EXPORT_SYMBOL(zpool_prop_init);
 262 EXPORT_SYMBOL(zpool_prop_get_type);
 263 EXPORT_SYMBOL(zpool_prop_get_table);
 264
 265 /* Pool property functions shared between libzfs and kernel. */
 266 EXPORT_SYMBOL(zpool_name_to_prop);
 267 EXPORT_SYMBOL(zpool_prop_to_name);
 268 EXPORT_SYMBOL(zpool_prop_default_string);
 269 EXPORT_SYMBOL(zpool_prop_default_numeric);
 270 EXPORT_SYMBOL(zpool_prop_readonly);
 271 EXPORT_SYMBOL(zpool_prop_feature);
 272 EXPORT_SYMBOL(zpool_prop_unsupported);
 273 EXPORT_SYMBOL(zpool_prop_index_to_string);
 274 EXPORT_SYMBOL(zpool_prop_string_to_index);
 275 #endif