xref: /illumos-gate/usr/src/common/zfs/zpool_prop.c (revision b3403853e80914bd0aade9b5b605da4878078173)
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, 2017 by Delphix. All rights reserved.
25  * Copyright (c) 2014 Integros [integros.com]
26  */
27 
28 #include <sys/zio.h>
29 #include <sys/spa.h>
30 #include <sys/zfs_acl.h>
31 #include <sys/zfs_ioctl.h>
32 #include <sys/fs/zfs.h>
33 
34 #include "zfs_prop.h"
35 
36 #if defined(_KERNEL)
37 #include <sys/systm.h>
38 #else
39 #include <stdlib.h>
40 #include <string.h>
41 #include <ctype.h>
42 #endif
43 
44 static zprop_desc_t zpool_prop_table[ZPOOL_NUM_PROPS];
45 
46 zprop_desc_t *
47 zpool_prop_get_table(void)
48 {
49 	return (zpool_prop_table);
50 }
51 
52 void
53 zpool_prop_init(void)
54 {
55 	static zprop_index_t boolean_table[] = {
56 		{ "off",	0},
57 		{ "on",		1},
58 		{ NULL }
59 	};
60 
61 	static zprop_index_t failuremode_table[] = {
62 		{ "wait",	ZIO_FAILURE_MODE_WAIT },
63 		{ "continue",	ZIO_FAILURE_MODE_CONTINUE },
64 		{ "panic",	ZIO_FAILURE_MODE_PANIC },
65 		{ NULL }
66 	};
67 
68 	/* string properties */
69 	zprop_register_string(ZPOOL_PROP_ALTROOT, "altroot", NULL, PROP_DEFAULT,
70 	    ZFS_TYPE_POOL, "<path>", "ALTROOT");
71 	zprop_register_string(ZPOOL_PROP_BOOTFS, "bootfs", NULL, PROP_DEFAULT,
72 	    ZFS_TYPE_POOL, "<filesystem>", "BOOTFS");
73 	zprop_register_string(ZPOOL_PROP_CACHEFILE, "cachefile", NULL,
74 	    PROP_DEFAULT, ZFS_TYPE_POOL, "<file> | none", "CACHEFILE");
75 	zprop_register_string(ZPOOL_PROP_COMMENT, "comment", NULL,
76 	    PROP_DEFAULT, ZFS_TYPE_POOL, "<comment-string>", "COMMENT");
77 
78 	/* readonly number properties */
79 	zprop_register_number(ZPOOL_PROP_SIZE, "size", 0, PROP_READONLY,
80 	    ZFS_TYPE_POOL, "<size>", "SIZE");
81 	zprop_register_number(ZPOOL_PROP_FREE, "free", 0, PROP_READONLY,
82 	    ZFS_TYPE_POOL, "<size>", "FREE");
83 	zprop_register_number(ZPOOL_PROP_FREEING, "freeing", 0, PROP_READONLY,
84 	    ZFS_TYPE_POOL, "<size>", "FREEING");
85 	zprop_register_number(ZPOOL_PROP_CHECKPOINT, "checkpoint", 0,
86 	    PROP_READONLY, ZFS_TYPE_POOL, "<size>", "CKPOINT");
87 	zprop_register_number(ZPOOL_PROP_LEAKED, "leaked", 0, PROP_READONLY,
88 	    ZFS_TYPE_POOL, "<size>", "LEAKED");
89 	zprop_register_number(ZPOOL_PROP_ALLOCATED, "allocated", 0,
90 	    PROP_READONLY, ZFS_TYPE_POOL, "<size>", "ALLOC");
91 	zprop_register_number(ZPOOL_PROP_EXPANDSZ, "expandsize", 0,
92 	    PROP_READONLY, ZFS_TYPE_POOL, "<size>", "EXPANDSZ");
93 	zprop_register_number(ZPOOL_PROP_FRAGMENTATION, "fragmentation", 0,
94 	    PROP_READONLY, ZFS_TYPE_POOL, "<percent>", "FRAG");
95 	zprop_register_number(ZPOOL_PROP_CAPACITY, "capacity", 0, PROP_READONLY,
96 	    ZFS_TYPE_POOL, "<size>", "CAP");
97 	zprop_register_number(ZPOOL_PROP_GUID, "guid", 0, PROP_READONLY,
98 	    ZFS_TYPE_POOL, "<guid>", "GUID");
99 	zprop_register_number(ZPOOL_PROP_HEALTH, "health", 0, PROP_READONLY,
100 	    ZFS_TYPE_POOL, "<state>", "HEALTH");
101 	zprop_register_number(ZPOOL_PROP_DEDUPRATIO, "dedupratio", 0,
102 	    PROP_READONLY, ZFS_TYPE_POOL, "<1.00x or higher if deduped>",
103 	    "DEDUP");
104 
105 	/* system partition size */
106 	zprop_register_number(ZPOOL_PROP_BOOTSIZE, "bootsize", 0, PROP_ONETIME,
107 	    ZFS_TYPE_POOL, "<size>", "BOOTSIZE");
108 
109 	/* default number properties */
110 	zprop_register_number(ZPOOL_PROP_VERSION, "version", SPA_VERSION,
111 	    PROP_DEFAULT, ZFS_TYPE_POOL, "<version>", "VERSION");
112 	zprop_register_number(ZPOOL_PROP_DEDUPDITTO, "dedupditto", 0,
113 	    PROP_DEFAULT, ZFS_TYPE_POOL, "<threshold (min 100)>", "DEDUPDITTO");
114 	zprop_register_number(ZPOOL_PROP_ASHIFT, "ashift", 0, PROP_DEFAULT,
115 	    ZFS_TYPE_POOL, "<ashift, 9-16, or 0=default>", "ASHIFT");
116 
117 	/* default index (boolean) properties */
118 	zprop_register_index(ZPOOL_PROP_DELEGATION, "delegation", 1,
119 	    PROP_DEFAULT, ZFS_TYPE_POOL, "on | off", "DELEGATION",
120 	    boolean_table);
121 	zprop_register_index(ZPOOL_PROP_AUTOREPLACE, "autoreplace", 0,
122 	    PROP_DEFAULT, ZFS_TYPE_POOL, "on | off", "REPLACE", boolean_table);
123 	zprop_register_index(ZPOOL_PROP_LISTSNAPS, "listsnapshots", 0,
124 	    PROP_DEFAULT, ZFS_TYPE_POOL, "on | off", "LISTSNAPS",
125 	    boolean_table);
126 	zprop_register_index(ZPOOL_PROP_AUTOEXPAND, "autoexpand", 0,
127 	    PROP_DEFAULT, ZFS_TYPE_POOL, "on | off", "EXPAND", boolean_table);
128 	zprop_register_index(ZPOOL_PROP_READONLY, "readonly", 0,
129 	    PROP_DEFAULT, ZFS_TYPE_POOL, "on | off", "RDONLY", boolean_table);
130 	zprop_register_index(ZPOOL_PROP_MULTIHOST, "multihost", 0,
131 	    PROP_DEFAULT, ZFS_TYPE_POOL, "on | off", "MULTIHOST",
132 	    boolean_table);
133 
134 	/* default index properties */
135 	zprop_register_index(ZPOOL_PROP_FAILUREMODE, "failmode",
136 	    ZIO_FAILURE_MODE_WAIT, PROP_DEFAULT, ZFS_TYPE_POOL,
137 	    "wait | continue | panic", "FAILMODE", failuremode_table);
138 	zprop_register_index(ZPOOL_PROP_AUTOTRIM, "autotrim",
139 	    SPA_AUTOTRIM_OFF, PROP_DEFAULT, ZFS_TYPE_POOL,
140 	    "on | off", "AUTOTRIM", boolean_table);
141 
142 	/* hidden properties */
143 	zprop_register_hidden(ZPOOL_PROP_NAME, "name", PROP_TYPE_STRING,
144 	    PROP_READONLY, ZFS_TYPE_POOL, "NAME");
145 	zprop_register_hidden(ZPOOL_PROP_MAXBLOCKSIZE, "maxblocksize",
146 	    PROP_TYPE_NUMBER, PROP_READONLY, ZFS_TYPE_POOL, "MAXBLOCKSIZE");
147 	zprop_register_hidden(ZPOOL_PROP_TNAME, "tname", PROP_TYPE_STRING,
148 	    PROP_ONETIME, ZFS_TYPE_POOL, "TNAME");
149 	zprop_register_hidden(ZPOOL_PROP_MAXDNODESIZE, "maxdnodesize",
150 	    PROP_TYPE_NUMBER, PROP_READONLY, ZFS_TYPE_POOL, "MAXDNODESIZE");
151 }
152 
153 /*
154  * Given a property name and its type, returns the corresponding property ID.
155  */
156 zpool_prop_t
157 zpool_name_to_prop(const char *propname)
158 {
159 	return (zprop_name_to_prop(propname, ZFS_TYPE_POOL));
160 }
161 
162 /*
163  * Given a pool property ID, returns the corresponding name.
164  * Assuming the pool propety ID is valid.
165  */
166 const char *
167 zpool_prop_to_name(zpool_prop_t prop)
168 {
169 	return (zpool_prop_table[prop].pd_name);
170 }
171 
172 zprop_type_t
173 zpool_prop_get_type(zpool_prop_t prop)
174 {
175 	return (zpool_prop_table[prop].pd_proptype);
176 }
177 
178 boolean_t
179 zpool_prop_readonly(zpool_prop_t prop)
180 {
181 	return (zpool_prop_table[prop].pd_attr == PROP_READONLY);
182 }
183 
184 const char *
185 zpool_prop_default_string(zpool_prop_t prop)
186 {
187 	return (zpool_prop_table[prop].pd_strdefault);
188 }
189 
190 uint64_t
191 zpool_prop_default_numeric(zpool_prop_t prop)
192 {
193 	return (zpool_prop_table[prop].pd_numdefault);
194 }
195 
196 /*
197  * Returns true if this is a valid feature@ property.
198  */
199 boolean_t
200 zpool_prop_feature(const char *name)
201 {
202 	static const char *prefix = "feature@";
203 	return (strncmp(name, prefix, strlen(prefix)) == 0);
204 }
205 
206 /*
207  * Returns true if this is a valid unsupported@ property.
208  */
209 boolean_t
210 zpool_prop_unsupported(const char *name)
211 {
212 	static const char *prefix = "unsupported@";
213 	return (strncmp(name, prefix, strlen(prefix)) == 0);
214 }
215 
216 int
217 zpool_prop_string_to_index(zpool_prop_t prop, const char *string,
218     uint64_t *index)
219 {
220 	return (zprop_string_to_index(prop, string, index, ZFS_TYPE_POOL));
221 }
222 
223 int
224 zpool_prop_index_to_string(zpool_prop_t prop, uint64_t index,
225     const char **string)
226 {
227 	return (zprop_index_to_string(prop, index, string, ZFS_TYPE_POOL));
228 }
229 
230 uint64_t
231 zpool_prop_random_value(zpool_prop_t prop, uint64_t seed)
232 {
233 	return (zprop_random_value(prop, seed, ZFS_TYPE_POOL));
234 }
235 
236 #ifndef _KERNEL
237 
238 const char *
239 zpool_prop_values(zpool_prop_t prop)
240 {
241 	return (zpool_prop_table[prop].pd_values);
242 }
243 
244 const char *
245 zpool_prop_column_name(zpool_prop_t prop)
246 {
247 	return (zpool_prop_table[prop].pd_colname);
248 }
249 
250 boolean_t
251 zpool_prop_align_right(zpool_prop_t prop)
252 {
253 	return (zpool_prop_table[prop].pd_rightalign);
254 }
255 #endif
256