xref: /titanic_52/usr/src/common/zfs/zpool_prop.c (revision 4a5d661a82b942b6538acd26209d959ce98b593a)
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, 2014 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_LEAKED, "leaked", 0, PROP_READONLY,
86 	    ZFS_TYPE_POOL, "<size>", "LEAKED");
87 	zprop_register_number(ZPOOL_PROP_ALLOCATED, "allocated", 0,
88 	    PROP_READONLY, ZFS_TYPE_POOL, "<size>", "ALLOC");
89 	zprop_register_number(ZPOOL_PROP_EXPANDSZ, "expandsize", 0,
90 	    PROP_READONLY, ZFS_TYPE_POOL, "<size>", "EXPANDSZ");
91 	zprop_register_number(ZPOOL_PROP_FRAGMENTATION, "fragmentation", 0,
92 	    PROP_READONLY, ZFS_TYPE_POOL, "<percent>", "FRAG");
93 	zprop_register_number(ZPOOL_PROP_CAPACITY, "capacity", 0, PROP_READONLY,
94 	    ZFS_TYPE_POOL, "<size>", "CAP");
95 	zprop_register_number(ZPOOL_PROP_GUID, "guid", 0, PROP_READONLY,
96 	    ZFS_TYPE_POOL, "<guid>", "GUID");
97 	zprop_register_number(ZPOOL_PROP_HEALTH, "health", 0, PROP_READONLY,
98 	    ZFS_TYPE_POOL, "<state>", "HEALTH");
99 	zprop_register_number(ZPOOL_PROP_DEDUPRATIO, "dedupratio", 0,
100 	    PROP_READONLY, ZFS_TYPE_POOL, "<1.00x or higher if deduped>",
101 	    "DEDUP");
102 
103 	/* default number properties */
104 	zprop_register_number(ZPOOL_PROP_VERSION, "version", SPA_VERSION,
105 	    PROP_DEFAULT, ZFS_TYPE_POOL, "<version>", "VERSION");
106 	zprop_register_number(ZPOOL_PROP_DEDUPDITTO, "dedupditto", 0,
107 	    PROP_DEFAULT, ZFS_TYPE_POOL, "<threshold (min 100)>", "DEDUPDITTO");
108 
109 	/* default index (boolean) properties */
110 	zprop_register_index(ZPOOL_PROP_DELEGATION, "delegation", 1,
111 	    PROP_DEFAULT, ZFS_TYPE_POOL, "on | off", "DELEGATION",
112 	    boolean_table);
113 	zprop_register_index(ZPOOL_PROP_AUTOREPLACE, "autoreplace", 0,
114 	    PROP_DEFAULT, ZFS_TYPE_POOL, "on | off", "REPLACE", boolean_table);
115 	zprop_register_index(ZPOOL_PROP_LISTSNAPS, "listsnapshots", 0,
116 	    PROP_DEFAULT, ZFS_TYPE_POOL, "on | off", "LISTSNAPS",
117 	    boolean_table);
118 	zprop_register_index(ZPOOL_PROP_AUTOEXPAND, "autoexpand", 0,
119 	    PROP_DEFAULT, ZFS_TYPE_POOL, "on | off", "EXPAND", boolean_table);
120 	zprop_register_index(ZPOOL_PROP_READONLY, "readonly", 0,
121 	    PROP_DEFAULT, ZFS_TYPE_POOL, "on | off", "RDONLY", boolean_table);
122 
123 	/* default index properties */
124 	zprop_register_index(ZPOOL_PROP_FAILUREMODE, "failmode",
125 	    ZIO_FAILURE_MODE_WAIT, PROP_DEFAULT, ZFS_TYPE_POOL,
126 	    "wait | continue | panic", "FAILMODE", failuremode_table);
127 
128 	/* hidden properties */
129 	zprop_register_hidden(ZPOOL_PROP_NAME, "name", PROP_TYPE_STRING,
130 	    PROP_READONLY, ZFS_TYPE_POOL, "NAME");
131 	zprop_register_hidden(ZPOOL_PROP_MAXBLOCKSIZE, "maxblocksize",
132 	    PROP_TYPE_NUMBER, PROP_READONLY, ZFS_TYPE_POOL, "MAXBLOCKSIZE");
133 }
134 
135 /*
136  * Given a property name and its type, returns the corresponding property ID.
137  */
138 zpool_prop_t
139 zpool_name_to_prop(const char *propname)
140 {
141 	return (zprop_name_to_prop(propname, ZFS_TYPE_POOL));
142 }
143 
144 /*
145  * Given a pool property ID, returns the corresponding name.
146  * Assuming the pool propety ID is valid.
147  */
148 const char *
149 zpool_prop_to_name(zpool_prop_t prop)
150 {
151 	return (zpool_prop_table[prop].pd_name);
152 }
153 
154 zprop_type_t
155 zpool_prop_get_type(zpool_prop_t prop)
156 {
157 	return (zpool_prop_table[prop].pd_proptype);
158 }
159 
160 boolean_t
161 zpool_prop_readonly(zpool_prop_t prop)
162 {
163 	return (zpool_prop_table[prop].pd_attr == PROP_READONLY);
164 }
165 
166 const char *
167 zpool_prop_default_string(zpool_prop_t prop)
168 {
169 	return (zpool_prop_table[prop].pd_strdefault);
170 }
171 
172 uint64_t
173 zpool_prop_default_numeric(zpool_prop_t prop)
174 {
175 	return (zpool_prop_table[prop].pd_numdefault);
176 }
177 
178 /*
179  * Returns true if this is a valid feature@ property.
180  */
181 boolean_t
182 zpool_prop_feature(const char *name)
183 {
184 	static const char *prefix = "feature@";
185 	return (strncmp(name, prefix, strlen(prefix)) == 0);
186 }
187 
188 /*
189  * Returns true if this is a valid unsupported@ property.
190  */
191 boolean_t
192 zpool_prop_unsupported(const char *name)
193 {
194 	static const char *prefix = "unsupported@";
195 	return (strncmp(name, prefix, strlen(prefix)) == 0);
196 }
197 
198 int
199 zpool_prop_string_to_index(zpool_prop_t prop, const char *string,
200     uint64_t *index)
201 {
202 	return (zprop_string_to_index(prop, string, index, ZFS_TYPE_POOL));
203 }
204 
205 int
206 zpool_prop_index_to_string(zpool_prop_t prop, uint64_t index,
207     const char **string)
208 {
209 	return (zprop_index_to_string(prop, index, string, ZFS_TYPE_POOL));
210 }
211 
212 uint64_t
213 zpool_prop_random_value(zpool_prop_t prop, uint64_t seed)
214 {
215 	return (zprop_random_value(prop, seed, ZFS_TYPE_POOL));
216 }
217 
218 #ifndef _KERNEL
219 
220 const char *
221 zpool_prop_values(zpool_prop_t prop)
222 {
223 	return (zpool_prop_table[prop].pd_values);
224 }
225 
226 const char *
227 zpool_prop_column_name(zpool_prop_t prop)
228 {
229 	return (zpool_prop_table[prop].pd_colname);
230 }
231 
232 boolean_t
233 zpool_prop_align_right(zpool_prop_t prop)
234 {
235 	return (zpool_prop_table[prop].pd_rightalign);
236 }
237 #endif
238