zpool_prop.c revision 268650 
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 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 <sys/systm.h>
37#else
38#include <stdlib.h>
39#include <string.h>
40#include <ctype.h>
41#endif
42
43static zprop_desc_t zpool_prop_table[ZPOOL_NUM_PROPS];
44
45zprop_desc_t *
46zpool_prop_get_table(void)
47{
48	return (zpool_prop_table);
49}
50
51void
52zpool_prop_init(void)
53{
54	static zprop_index_t boolean_table[] = {
55		{ "off",	0},
56		{ "on",		1},
57		{ NULL }
58	};
59
60	static zprop_index_t failuremode_table[] = {
61		{ "wait",	ZIO_FAILURE_MODE_WAIT },
62		{ "continue",	ZIO_FAILURE_MODE_CONTINUE },
63		{ "panic",	ZIO_FAILURE_MODE_PANIC },
64		{ NULL }
65	};
66
67	/* string properties */
68	zprop_register_string(ZPOOL_PROP_ALTROOT, "altroot", NULL, PROP_DEFAULT,
69	    ZFS_TYPE_POOL, "<path>", "ALTROOT");
70	zprop_register_string(ZPOOL_PROP_BOOTFS, "bootfs", NULL, PROP_DEFAULT,
71	    ZFS_TYPE_POOL, "<filesystem>", "BOOTFS");
72	zprop_register_string(ZPOOL_PROP_CACHEFILE, "cachefile", NULL,
73	    PROP_DEFAULT, ZFS_TYPE_POOL, "<file> | none", "CACHEFILE");
74	zprop_register_string(ZPOOL_PROP_COMMENT, "comment", NULL,
75	    PROP_DEFAULT, ZFS_TYPE_POOL, "<comment-string>", "COMMENT");
76
77	/* readonly number properties */
78	zprop_register_number(ZPOOL_PROP_SIZE, "size", 0, PROP_READONLY,
79	    ZFS_TYPE_POOL, "<size>", "SIZE");
80	zprop_register_number(ZPOOL_PROP_FREE, "free", 0, PROP_READONLY,
81	    ZFS_TYPE_POOL, "<size>", "FREE");
82	zprop_register_number(ZPOOL_PROP_FREEING, "freeing", 0, PROP_READONLY,
83	    ZFS_TYPE_POOL, "<size>", "FREEING");
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_CAPACITY, "capacity", 0, PROP_READONLY,
91	    ZFS_TYPE_POOL, "<size>", "CAP");
92	zprop_register_number(ZPOOL_PROP_GUID, "guid", 0, PROP_READONLY,
93	    ZFS_TYPE_POOL, "<guid>", "GUID");
94	zprop_register_number(ZPOOL_PROP_HEALTH, "health", 0, PROP_READONLY,
95	    ZFS_TYPE_POOL, "<state>", "HEALTH");
96	zprop_register_number(ZPOOL_PROP_DEDUPRATIO, "dedupratio", 0,
97	    PROP_READONLY, ZFS_TYPE_POOL, "<1.00x or higher if deduped>",
98	    "DEDUP");
99
100	/* default number properties */
101	zprop_register_number(ZPOOL_PROP_VERSION, "version", SPA_VERSION,
102	    PROP_DEFAULT, ZFS_TYPE_POOL, "<version>", "VERSION");
103	zprop_register_number(ZPOOL_PROP_DEDUPDITTO, "dedupditto", 0,
104	    PROP_DEFAULT, ZFS_TYPE_POOL, "<threshold (min 100)>", "DEDUPDITTO");
105
106	/* default index (boolean) properties */
107	zprop_register_index(ZPOOL_PROP_DELEGATION, "delegation", 1,
108	    PROP_DEFAULT, ZFS_TYPE_POOL, "on | off", "DELEGATION",
109	    boolean_table);
110	zprop_register_index(ZPOOL_PROP_AUTOREPLACE, "autoreplace", 0,
111	    PROP_DEFAULT, ZFS_TYPE_POOL, "on | off", "REPLACE", boolean_table);
112	zprop_register_index(ZPOOL_PROP_LISTSNAPS, "listsnapshots", 0,
113	    PROP_DEFAULT, ZFS_TYPE_POOL, "on | off", "LISTSNAPS",
114	    boolean_table);
115	zprop_register_index(ZPOOL_PROP_AUTOEXPAND, "autoexpand", 0,
116	    PROP_DEFAULT, ZFS_TYPE_POOL, "on | off", "EXPAND", boolean_table);
117	zprop_register_index(ZPOOL_PROP_READONLY, "readonly", 0,
118	    PROP_DEFAULT, ZFS_TYPE_POOL, "on | off", "RDONLY", boolean_table);
119
120	/* default index properties */
121	zprop_register_index(ZPOOL_PROP_FAILUREMODE, "failmode",
122	    ZIO_FAILURE_MODE_WAIT, PROP_DEFAULT, ZFS_TYPE_POOL,
123	    "wait | continue | panic", "FAILMODE", failuremode_table);
124
125	/* hidden properties */
126	zprop_register_hidden(ZPOOL_PROP_NAME, "name", PROP_TYPE_STRING,
127	    PROP_READONLY, ZFS_TYPE_POOL, "NAME");
128}
129
130/*
131 * Given a property name and its type, returns the corresponding property ID.
132 */
133zpool_prop_t
134zpool_name_to_prop(const char *propname)
135{
136	return (zprop_name_to_prop(propname, ZFS_TYPE_POOL));
137}
138
139/*
140 * Given a pool property ID, returns the corresponding name.
141 * Assuming the pool propety ID is valid.
142 */
143const char *
144zpool_prop_to_name(zpool_prop_t prop)
145{
146	return (zpool_prop_table[prop].pd_name);
147}
148
149zprop_type_t
150zpool_prop_get_type(zpool_prop_t prop)
151{
152	return (zpool_prop_table[prop].pd_proptype);
153}
154
155boolean_t
156zpool_prop_readonly(zpool_prop_t prop)
157{
158	return (zpool_prop_table[prop].pd_attr == PROP_READONLY);
159}
160
161const char *
162zpool_prop_default_string(zpool_prop_t prop)
163{
164	return (zpool_prop_table[prop].pd_strdefault);
165}
166
167uint64_t
168zpool_prop_default_numeric(zpool_prop_t prop)
169{
170	return (zpool_prop_table[prop].pd_numdefault);
171}
172
173/*
174 * Returns true if this is a valid feature@ property.
175 */
176boolean_t
177zpool_prop_feature(const char *name)
178{
179	static const char *prefix = "feature@";
180	return (strncmp(name, prefix, strlen(prefix)) == 0);
181}
182
183/*
184 * Returns true if this is a valid unsupported@ property.
185 */
186boolean_t
187zpool_prop_unsupported(const char *name)
188{
189	static const char *prefix = "unsupported@";
190	return (strncmp(name, prefix, strlen(prefix)) == 0);
191}
192
193int
194zpool_prop_string_to_index(zpool_prop_t prop, const char *string,
195    uint64_t *index)
196{
197	return (zprop_string_to_index(prop, string, index, ZFS_TYPE_POOL));
198}
199
200int
201zpool_prop_index_to_string(zpool_prop_t prop, uint64_t index,
202    const char **string)
203{
204	return (zprop_index_to_string(prop, index, string, ZFS_TYPE_POOL));
205}
206
207uint64_t
208zpool_prop_random_value(zpool_prop_t prop, uint64_t seed)
209{
210	return (zprop_random_value(prop, seed, ZFS_TYPE_POOL));
211}
212
213#ifndef _KERNEL
214
215const char *
216zpool_prop_values(zpool_prop_t prop)
217{
218	return (zpool_prop_table[prop].pd_values);
219}
220
221const char *
222zpool_prop_column_name(zpool_prop_t prop)
223{
224	return (zpool_prop_table[prop].pd_colname);
225}
226
227boolean_t
228zpool_prop_align_right(zpool_prop_t prop)
229{
230	return (zpool_prop_table[prop].pd_rightalign);
231}
232#endif
233