usr/src/common/zfs/zfs_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) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
  23  * Copyright (c) 2011, 2016 by Delphix. All rights reserved.
  24  * Copyright (c) 2013 by Saso Kiselkov. All rights reserved.
  25  * Copyright (c) 2014 Integros [integros.com]
  26  * Copyright 2016, Joyent, Inc.
  27  */
  28
  29 /* Portions Copyright 2010 Robert Milkowski */
  30
  31 #include <sys/zio.h>
  32 #include <sys/spa.h>
  33 #include <sys/u8_textprep.h>
  34 #include <sys/zfs_acl.h>
  35 #include <sys/zfs_ioctl.h>
  36 #include <sys/zfs_znode.h>
  37
  38 #include "zfs_prop.h"
  39 #include "zfs_deleg.h"
  40
  41 #if defined(_KERNEL)
  42 #include <sys/systm.h>
  43 #else
  44 #include <stdlib.h>
  45 #include <string.h>
  46 #include <ctype.h>
  47 #endif
  48
  49 static zprop_desc_t zfs_prop_table[ZFS_NUM_PROPS];
  50
  51 /* Note this is indexed by zfs_userquota_prop_t, keep the order the same */
  52 const char *zfs_userquota_prop_prefixes[] = {
  53         "userused@",
  54         "userquota@",
  55         "groupused@",
  56         "groupquota@"
  57 };
  58
  59 zprop_desc_t *
  60 zfs_prop_get_table(void)
  61 {
  62         return (zfs_prop_table);
  63 }
  64
  65 void
  66 zfs_prop_init(void)
  67 {
  68         static zprop_index_t checksum_table[] = {
  69                 { "on",         ZIO_CHECKSUM_ON },
  70                 { "off",        ZIO_CHECKSUM_OFF },
  71                 { "fletcher2",  ZIO_CHECKSUM_FLETCHER_2 },
  72                 { "fletcher4",  ZIO_CHECKSUM_FLETCHER_4 },
  73                 { "sha256",     ZIO_CHECKSUM_SHA256 },
  74                 { "noparity",   ZIO_CHECKSUM_NOPARITY },
  75                 { "sha512",     ZIO_CHECKSUM_SHA512 },
  76                 { "skein",      ZIO_CHECKSUM_SKEIN },
  77                 { "edonr",      ZIO_CHECKSUM_EDONR },
  78                 { NULL }
  79         };
  80
  81         static zprop_index_t dedup_table[] = {
  82                 { "on",         ZIO_CHECKSUM_ON },
  83                 { "off",        ZIO_CHECKSUM_OFF },
  84                 { "verify",     ZIO_CHECKSUM_ON | ZIO_CHECKSUM_VERIFY },
  85                 { "sha256",     ZIO_CHECKSUM_SHA256 },
  86                 { "sha256,verify",
  87                                 ZIO_CHECKSUM_SHA256 | ZIO_CHECKSUM_VERIFY },
  88                 { "sha512",     ZIO_CHECKSUM_SHA512 },
  89                 { "sha512,verify",
  90                                 ZIO_CHECKSUM_SHA512 | ZIO_CHECKSUM_VERIFY },
  91                 { "skein",      ZIO_CHECKSUM_SKEIN },
  92                 { "skein,verify",
  93                                 ZIO_CHECKSUM_SKEIN | ZIO_CHECKSUM_VERIFY },
  94                 { "edonr,verify",
  95                                 ZIO_CHECKSUM_EDONR | ZIO_CHECKSUM_VERIFY },
  96                 { NULL }
  97         };
  98
  99         static zprop_index_t compress_table[] = {
 100                 { "on",         ZIO_COMPRESS_ON },
 101                 { "off",        ZIO_COMPRESS_OFF },
 102                 { "lzjb",       ZIO_COMPRESS_LZJB },
 103                 { "gzip",       ZIO_COMPRESS_GZIP_6 },  /* gzip default */
 104                 { "gzip-1",     ZIO_COMPRESS_GZIP_1 },
 105                 { "gzip-2",     ZIO_COMPRESS_GZIP_2 },
 106                 { "gzip-3",     ZIO_COMPRESS_GZIP_3 },
 107                 { "gzip-4",     ZIO_COMPRESS_GZIP_4 },
 108                 { "gzip-5",     ZIO_COMPRESS_GZIP_5 },
 109                 { "gzip-6",     ZIO_COMPRESS_GZIP_6 },
 110                 { "gzip-7",     ZIO_COMPRESS_GZIP_7 },
 111                 { "gzip-8",     ZIO_COMPRESS_GZIP_8 },
 112                 { "gzip-9",     ZIO_COMPRESS_GZIP_9 },
 113                 { "zle",        ZIO_COMPRESS_ZLE },
 114                 { "lz4",        ZIO_COMPRESS_LZ4 },
 115                 { NULL }
 116         };
 117
 118         static zprop_index_t snapdir_table[] = {
 119                 { "hidden",     ZFS_SNAPDIR_HIDDEN },
 120                 { "visible",    ZFS_SNAPDIR_VISIBLE },
 121                 { NULL }
 122         };
 123
 124         static zprop_index_t acl_mode_table[] = {
 125                 { "discard",    ZFS_ACL_DISCARD },
 126                 { "groupmask",  ZFS_ACL_GROUPMASK },
 127                 { "passthrough", ZFS_ACL_PASSTHROUGH },
 128                 { "restricted", ZFS_ACL_RESTRICTED },
 129                 { NULL }
 130         };
 131
 132         static zprop_index_t acl_inherit_table[] = {
 133                 { "discard",    ZFS_ACL_DISCARD },
 134                 { "noallow",    ZFS_ACL_NOALLOW },
 135                 { "restricted", ZFS_ACL_RESTRICTED },
 136                 { "passthrough", ZFS_ACL_PASSTHROUGH },
 137                 { "secure",     ZFS_ACL_RESTRICTED }, /* bkwrd compatability */
 138                 { "passthrough-x", ZFS_ACL_PASSTHROUGH_X },
 139                 { NULL }
 140         };
 141
 142         static zprop_index_t case_table[] = {
 143                 { "sensitive",          ZFS_CASE_SENSITIVE },
 144                 { "insensitive",        ZFS_CASE_INSENSITIVE },
 145                 { "mixed",              ZFS_CASE_MIXED },
 146                 { NULL }
 147         };
 148
 149         static zprop_index_t copies_table[] = {
 150                 { "1",          1 },
 151                 { "2",          2 },
 152                 { "3",          3 },
 153                 { NULL }
 154         };
 155
 156         /*
 157          * Use the unique flags we have to send to u8_strcmp() and/or
 158          * u8_textprep() to represent the various normalization property
 159          * values.
 160          */
 161         static zprop_index_t normalize_table[] = {
 162                 { "none",       0 },
 163                 { "formD",      U8_TEXTPREP_NFD },
 164                 { "formKC",     U8_TEXTPREP_NFKC },
 165                 { "formC",      U8_TEXTPREP_NFC },
 166                 { "formKD",     U8_TEXTPREP_NFKD },
 167                 { NULL }
 168         };
 169
 170         static zprop_index_t version_table[] = {
 171                 { "1",          1 },
 172                 { "2",          2 },
 173                 { "3",          3 },
 174                 { "4",          4 },
 175                 { "5",          5 },
 176                 { "current",    ZPL_VERSION },
 177                 { NULL }
 178         };
 179
 180         static zprop_index_t boolean_table[] = {
 181                 { "off",        0 },
 182                 { "on",         1 },
 183                 { NULL }
 184         };
 185
 186         static zprop_index_t logbias_table[] = {
 187                 { "latency",    ZFS_LOGBIAS_LATENCY },
 188                 { "throughput", ZFS_LOGBIAS_THROUGHPUT },
 189                 { NULL }
 190         };
 191
 192         static zprop_index_t canmount_table[] = {
 193                 { "off",        ZFS_CANMOUNT_OFF },
 194                 { "on",         ZFS_CANMOUNT_ON },
 195                 { "noauto",     ZFS_CANMOUNT_NOAUTO },
 196                 { NULL }
 197         };
 198
 199         static zprop_index_t cache_table[] = {
 200                 { "none",       ZFS_CACHE_NONE },
 201                 { "metadata",   ZFS_CACHE_METADATA },
 202                 { "all",        ZFS_CACHE_ALL },
 203                 { NULL }
 204         };
 205
 206         static zprop_index_t sync_table[] = {
 207                 { "standard",   ZFS_SYNC_STANDARD },
 208                 { "always",     ZFS_SYNC_ALWAYS },
 209                 { "disabled",   ZFS_SYNC_DISABLED },
 210                 { NULL }
 211         };
 212
 213         static zprop_index_t redundant_metadata_table[] = {
 214                 { "all",        ZFS_REDUNDANT_METADATA_ALL },
 215                 { "most",       ZFS_REDUNDANT_METADATA_MOST },
 216                 { NULL }
 217         };
 218
 219         /* inherit index properties */
 220         zprop_register_index(ZFS_PROP_REDUNDANT_METADATA, "redundant_metadata",
 221             ZFS_REDUNDANT_METADATA_ALL,
 222             PROP_INHERIT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME,
 223             "all | most", "REDUND_MD",
 224             redundant_metadata_table);
 225         zprop_register_index(ZFS_PROP_SYNC, "sync", ZFS_SYNC_STANDARD,
 226             PROP_INHERIT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME,
 227             "standard | always | disabled", "SYNC",
 228             sync_table);
 229         zprop_register_index(ZFS_PROP_CHECKSUM, "checksum",
 230             ZIO_CHECKSUM_DEFAULT, PROP_INHERIT, ZFS_TYPE_FILESYSTEM |
 231             ZFS_TYPE_VOLUME,
 232             "on | off | fletcher2 | fletcher4 | sha256 | sha512 | "
 233             "skein | edonr", "CHECKSUM", checksum_table);
 234         zprop_register_index(ZFS_PROP_DEDUP, "dedup", ZIO_CHECKSUM_OFF,
 235             PROP_INHERIT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME,
 236             "on | off | verify | sha256[,verify], sha512[,verify], "
 237             "skein[,verify], edonr,verify", "DEDUP", dedup_table);
 238         zprop_register_index(ZFS_PROP_COMPRESSION, "compression",
 239             ZIO_COMPRESS_DEFAULT, PROP_INHERIT,
 240             ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME,
 241             "on | off | lzjb | gzip | gzip-[1-9] | zle | lz4",
 242             "COMPRESS", compress_table);
 243         zprop_register_index(ZFS_PROP_SNAPDIR, "snapdir", ZFS_SNAPDIR_HIDDEN,
 244             PROP_INHERIT, ZFS_TYPE_FILESYSTEM,
 245             "hidden | visible", "SNAPDIR", snapdir_table);
 246         zprop_register_index(ZFS_PROP_ACLMODE, "aclmode", ZFS_ACL_DISCARD,
 247             PROP_INHERIT, ZFS_TYPE_FILESYSTEM,
 248             "discard | groupmask | passthrough | restricted", "ACLMODE",
 249             acl_mode_table);
 250         zprop_register_index(ZFS_PROP_ACLINHERIT, "aclinherit",
 251             ZFS_ACL_RESTRICTED, PROP_INHERIT, ZFS_TYPE_FILESYSTEM,
 252             "discard | noallow | restricted | passthrough | passthrough-x",
 253             "ACLINHERIT", acl_inherit_table);
 254         zprop_register_index(ZFS_PROP_COPIES, "copies", 1, PROP_INHERIT,
 255             ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME,
 256             "1 | 2 | 3", "COPIES", copies_table);
 257         zprop_register_index(ZFS_PROP_PRIMARYCACHE, "primarycache",
 258             ZFS_CACHE_ALL, PROP_INHERIT,
 259             ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT | ZFS_TYPE_VOLUME,
 260             "all | none | metadata", "PRIMARYCACHE", cache_table);
 261         zprop_register_index(ZFS_PROP_SECONDARYCACHE, "secondarycache",
 262             ZFS_CACHE_ALL, PROP_INHERIT,
 263             ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT | ZFS_TYPE_VOLUME,
 264             "all | none | metadata", "SECONDARYCACHE", cache_table);
 265         zprop_register_index(ZFS_PROP_LOGBIAS, "logbias", ZFS_LOGBIAS_LATENCY,
 266             PROP_INHERIT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME,
 267             "latency | throughput", "LOGBIAS", logbias_table);
 268
 269         /* inherit index (boolean) properties */
 270         zprop_register_index(ZFS_PROP_ATIME, "atime", 1, PROP_INHERIT,
 271             ZFS_TYPE_FILESYSTEM, "on | off", "ATIME", boolean_table);
 272         zprop_register_index(ZFS_PROP_DEVICES, "devices", 1, PROP_INHERIT,
 273             ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT, "on | off", "DEVICES",
 274             boolean_table);
 275         zprop_register_index(ZFS_PROP_EXEC, "exec", 1, PROP_INHERIT,
 276             ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT, "on | off", "EXEC",
 277             boolean_table);
 278         zprop_register_index(ZFS_PROP_SETUID, "setuid", 1, PROP_INHERIT,
 279             ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT, "on | off", "SETUID",
 280             boolean_table);
 281         zprop_register_index(ZFS_PROP_READONLY, "readonly", 0, PROP_INHERIT,
 282             ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "on | off", "RDONLY",
 283             boolean_table);
 284         zprop_register_index(ZFS_PROP_ZONED, "zoned", 0, PROP_INHERIT,
 285             ZFS_TYPE_FILESYSTEM, "on | off", "ZONED", boolean_table);
 286         zprop_register_index(ZFS_PROP_XATTR, "xattr", 1, PROP_INHERIT,
 287             ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT, "on | off", "XATTR",
 288             boolean_table);
 289         zprop_register_index(ZFS_PROP_VSCAN, "vscan", 0, PROP_INHERIT,
 290             ZFS_TYPE_FILESYSTEM, "on | off", "VSCAN",
 291             boolean_table);
 292         zprop_register_index(ZFS_PROP_NBMAND, "nbmand", 0, PROP_INHERIT,
 293             ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT, "on | off", "NBMAND",
 294             boolean_table);
 295
 296         /* default index properties */
 297         zprop_register_index(ZFS_PROP_VERSION, "version", 0, PROP_DEFAULT,
 298             ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT,
 299             "1 | 2 | 3 | 4 | 5 | current", "VERSION", version_table);
 300         zprop_register_index(ZFS_PROP_CANMOUNT, "canmount", ZFS_CANMOUNT_ON,
 301             PROP_DEFAULT, ZFS_TYPE_FILESYSTEM, "on | off | noauto",
 302             "CANMOUNT", canmount_table);
 303
 304         /* readonly index (boolean) properties */
 305         zprop_register_index(ZFS_PROP_MOUNTED, "mounted", 0, PROP_READONLY,
 306             ZFS_TYPE_FILESYSTEM, "yes | no", "MOUNTED", boolean_table);
 307         zprop_register_index(ZFS_PROP_DEFER_DESTROY, "defer_destroy", 0,
 308             PROP_READONLY, ZFS_TYPE_SNAPSHOT, "yes | no", "DEFER_DESTROY",
 309             boolean_table);
 310
 311         /* set once index properties */
 312         zprop_register_index(ZFS_PROP_NORMALIZE, "normalization", 0,
 313             PROP_ONETIME, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT,
 314             "none | formC | formD | formKC | formKD", "NORMALIZATION",
 315             normalize_table);
 316         zprop_register_index(ZFS_PROP_CASE, "casesensitivity",
 317             ZFS_CASE_SENSITIVE, PROP_ONETIME, ZFS_TYPE_FILESYSTEM |
 318             ZFS_TYPE_SNAPSHOT,
 319             "sensitive | insensitive | mixed", "CASE", case_table);
 320
 321         /* set once index (boolean) properties */
 322         zprop_register_index(ZFS_PROP_UTF8ONLY, "utf8only", 0, PROP_ONETIME,
 323             ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT,
 324             "on | off", "UTF8ONLY", boolean_table);
 325
 326         /* string properties */
 327         zprop_register_string(ZFS_PROP_ORIGIN, "origin", NULL, PROP_READONLY,
 328             ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "<snapshot>", "ORIGIN");
 329         zprop_register_string(ZFS_PROP_CLONES, "clones", NULL, PROP_READONLY,
 330             ZFS_TYPE_SNAPSHOT, "<dataset>[,...]", "CLONES");
 331         zprop_register_string(ZFS_PROP_MOUNTPOINT, "mountpoint", "/",
 332             PROP_INHERIT, ZFS_TYPE_FILESYSTEM, "<path> | legacy | none",
 333             "MOUNTPOINT");
 334         zprop_register_string(ZFS_PROP_SHARENFS, "sharenfs", "off",
 335             PROP_INHERIT, ZFS_TYPE_FILESYSTEM, "on | off | share(1M) options",
 336             "SHARENFS");
 337         zprop_register_string(ZFS_PROP_TYPE, "type", NULL, PROP_READONLY,
 338             ZFS_TYPE_DATASET | ZFS_TYPE_BOOKMARK,
 339             "filesystem | volume | snapshot | bookmark", "TYPE");
 340         zprop_register_string(ZFS_PROP_SHARESMB, "sharesmb", "off",
 341             PROP_INHERIT, ZFS_TYPE_FILESYSTEM,
 342             "on | off | sharemgr(1M) options", "SHARESMB");
 343         zprop_register_string(ZFS_PROP_MLSLABEL, "mlslabel",
 344             ZFS_MLSLABEL_DEFAULT, PROP_INHERIT, ZFS_TYPE_DATASET,
 345             "<sensitivity label>", "MLSLABEL");
 346         zprop_register_string(ZFS_PROP_RECEIVE_RESUME_TOKEN,
 347             "receive_resume_token",
 348             NULL, PROP_READONLY, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME,
 349             "<string token>", "RESUMETOK");
 350
 351         /* readonly number properties */
 352         zprop_register_number(ZFS_PROP_USED, "used", 0, PROP_READONLY,
 353             ZFS_TYPE_DATASET, "<size>", "USED");
 354         zprop_register_number(ZFS_PROP_AVAILABLE, "available", 0, PROP_READONLY,
 355             ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "<size>", "AVAIL");
 356         zprop_register_number(ZFS_PROP_REFERENCED, "referenced", 0,
 357             PROP_READONLY, ZFS_TYPE_DATASET, "<size>", "REFER");
 358         zprop_register_number(ZFS_PROP_COMPRESSRATIO, "compressratio", 0,
 359             PROP_READONLY, ZFS_TYPE_DATASET,
 360             "<1.00x or higher if compressed>", "RATIO");
 361         zprop_register_number(ZFS_PROP_REFRATIO, "refcompressratio", 0,
 362             PROP_READONLY, ZFS_TYPE_DATASET,
 363             "<1.00x or higher if compressed>", "REFRATIO");
 364         zprop_register_number(ZFS_PROP_VOLBLOCKSIZE, "volblocksize",
 365             ZVOL_DEFAULT_BLOCKSIZE, PROP_ONETIME,
 366             ZFS_TYPE_VOLUME, "512 to 128k, power of 2", "VOLBLOCK");
 367         zprop_register_number(ZFS_PROP_USEDSNAP, "usedbysnapshots", 0,
 368             PROP_READONLY, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "<size>",
 369             "USEDSNAP");
 370         zprop_register_number(ZFS_PROP_USEDDS, "usedbydataset", 0,
 371             PROP_READONLY, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "<size>",
 372             "USEDDS");
 373         zprop_register_number(ZFS_PROP_USEDCHILD, "usedbychildren", 0,
 374             PROP_READONLY, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "<size>",
 375             "USEDCHILD");
 376         zprop_register_number(ZFS_PROP_USEDREFRESERV, "usedbyrefreservation", 0,
 377             PROP_READONLY,
 378             ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "<size>", "USEDREFRESERV");
 379         zprop_register_number(ZFS_PROP_USERREFS, "userrefs", 0, PROP_READONLY,
 380             ZFS_TYPE_SNAPSHOT, "<count>", "USERREFS");
 381         zprop_register_number(ZFS_PROP_WRITTEN, "written", 0, PROP_READONLY,
 382             ZFS_TYPE_DATASET, "<size>", "WRITTEN");
 383         zprop_register_number(ZFS_PROP_LOGICALUSED, "logicalused", 0,
 384             PROP_READONLY, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "<size>",
 385             "LUSED");
 386         zprop_register_number(ZFS_PROP_LOGICALREFERENCED, "logicalreferenced",
 387             0, PROP_READONLY, ZFS_TYPE_DATASET, "<size>", "LREFER");
 388         zprop_register_number(ZFS_PROP_FILESYSTEM_COUNT, "filesystem_count",
 389             UINT64_MAX, PROP_READONLY, ZFS_TYPE_FILESYSTEM,
 390             "<count>", "FSCOUNT");
 391         zprop_register_number(ZFS_PROP_SNAPSHOT_COUNT, "snapshot_count",
 392             UINT64_MAX, PROP_READONLY, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME,
 393             "<count>", "SSCOUNT");
 394         zprop_register_number(ZFS_PROP_GUID, "guid", 0, PROP_READONLY,
 395             ZFS_TYPE_DATASET | ZFS_TYPE_BOOKMARK, "<uint64>", "GUID");
 396         zprop_register_number(ZFS_PROP_CREATETXG, "createtxg", 0, PROP_READONLY,
 397             ZFS_TYPE_DATASET | ZFS_TYPE_BOOKMARK, "<uint64>", "CREATETXG");
 398
 399         /* default number properties */
 400         zprop_register_number(ZFS_PROP_QUOTA, "quota", 0, PROP_DEFAULT,
 401             ZFS_TYPE_FILESYSTEM, "<size> | none", "QUOTA");
 402         zprop_register_number(ZFS_PROP_RESERVATION, "reservation", 0,
 403             PROP_DEFAULT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME,
 404             "<size> | none", "RESERV");
 405         zprop_register_number(ZFS_PROP_VOLSIZE, "volsize", 0, PROP_DEFAULT,
 406             ZFS_TYPE_VOLUME, "<size>", "VOLSIZE");
 407         zprop_register_number(ZFS_PROP_REFQUOTA, "refquota", 0, PROP_DEFAULT,
 408             ZFS_TYPE_FILESYSTEM, "<size> | none", "REFQUOTA");
 409         zprop_register_number(ZFS_PROP_REFRESERVATION, "refreservation", 0,
 410             PROP_DEFAULT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME,
 411             "<size> | none", "REFRESERV");
 412         zprop_register_number(ZFS_PROP_FILESYSTEM_LIMIT, "filesystem_limit",
 413             UINT64_MAX, PROP_DEFAULT, ZFS_TYPE_FILESYSTEM,
 414             "<count> | none", "FSLIMIT");
 415         zprop_register_number(ZFS_PROP_SNAPSHOT_LIMIT, "snapshot_limit",
 416             UINT64_MAX, PROP_DEFAULT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME,
 417             "<count> | none", "SSLIMIT");
 418
 419         /* inherit number properties */
 420         zprop_register_number(ZFS_PROP_RECORDSIZE, "recordsize",
 421             SPA_OLD_MAXBLOCKSIZE, PROP_INHERIT,
 422             ZFS_TYPE_FILESYSTEM, "512 to 1M, power of 2", "RECSIZE");
 423
 424         /* hidden properties */
 425         zprop_register_hidden(ZFS_PROP_REMAPTXG, "remaptxg", PROP_TYPE_NUMBER,
 426             PROP_READONLY, ZFS_TYPE_DATASET, "REMAPTXG");
 427         zprop_register_hidden(ZFS_PROP_NUMCLONES, "numclones", PROP_TYPE_NUMBER,
 428             PROP_READONLY, ZFS_TYPE_SNAPSHOT, "NUMCLONES");
 429         zprop_register_hidden(ZFS_PROP_NAME, "name", PROP_TYPE_STRING,
 430             PROP_READONLY, ZFS_TYPE_DATASET | ZFS_TYPE_BOOKMARK, "NAME");
 431         zprop_register_hidden(ZFS_PROP_ISCSIOPTIONS, "iscsioptions",
 432             PROP_TYPE_STRING, PROP_INHERIT, ZFS_TYPE_VOLUME, "ISCSIOPTIONS");
 433         zprop_register_hidden(ZFS_PROP_STMF_SHAREINFO, "stmf_sbd_lu",
 434             PROP_TYPE_STRING, PROP_INHERIT, ZFS_TYPE_VOLUME,
 435             "STMF_SBD_LU");
 436         zprop_register_hidden(ZFS_PROP_USERACCOUNTING, "useraccounting",
 437             PROP_TYPE_NUMBER, PROP_READONLY, ZFS_TYPE_DATASET,
 438             "USERACCOUNTING");
 439         zprop_register_hidden(ZFS_PROP_UNIQUE, "unique", PROP_TYPE_NUMBER,
 440             PROP_READONLY, ZFS_TYPE_DATASET, "UNIQUE");
 441         zprop_register_hidden(ZFS_PROP_OBJSETID, "objsetid", PROP_TYPE_NUMBER,
 442             PROP_READONLY, ZFS_TYPE_DATASET, "OBJSETID");
 443         zprop_register_hidden(ZFS_PROP_INCONSISTENT, "inconsistent",
 444             PROP_TYPE_NUMBER, PROP_READONLY, ZFS_TYPE_DATASET, "INCONSISTENT");
 445         zprop_register_hidden(ZFS_PROP_PREV_SNAP, "prevsnap", PROP_TYPE_STRING,
 446             PROP_READONLY, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "PREVSNAP");
 447
 448         /* oddball properties */
 449         zprop_register_impl(ZFS_PROP_CREATION, "creation", PROP_TYPE_NUMBER, 0,
 450             NULL, PROP_READONLY, ZFS_TYPE_DATASET | ZFS_TYPE_BOOKMARK,
 451             "<date>", "CREATION", B_FALSE, B_TRUE, NULL);
 452 }
 453
 454 boolean_t
 455 zfs_prop_delegatable(zfs_prop_t prop)
 456 {
 457         zprop_desc_t *pd = &zfs_prop_table[prop];
 458
 459         /* The mlslabel property is never delegatable. */
 460         if (prop == ZFS_PROP_MLSLABEL)
 461                 return (B_FALSE);
 462
 463         return (pd->pd_attr != PROP_READONLY);
 464 }
 465
 466 /*
 467  * Given a zfs dataset property name, returns the corresponding property ID.
 468  */
 469 zfs_prop_t
 470 zfs_name_to_prop(const char *propname)
 471 {
 472         return (zprop_name_to_prop(propname, ZFS_TYPE_DATASET));
 473 }
 474
 475 /*
 476  * For user property names, we allow all lowercase alphanumeric characters, plus
 477  * a few useful punctuation characters.
 478  */
 479 static int
 480 valid_char(char c)
 481 {
 482         return ((c >= 'a' && c <= 'z') ||
 483             (c >= '0' && c <= '9') ||
 484             c == '-' || c == '_' || c == '.' || c == ':');
 485 }
 486
 487 /*
 488  * Returns true if this is a valid user-defined property (one with a ':').
 489  */
 490 boolean_t
 491 zfs_prop_user(const char *name)
 492 {
 493         int i;
 494         char c;
 495         boolean_t foundsep = B_FALSE;
 496
 497         for (i = 0; i < strlen(name); i++) {
 498                 c = name[i];
 499                 if (!valid_char(c))
 500                         return (B_FALSE);
 501                 if (c == ':')
 502                         foundsep = B_TRUE;
 503         }
 504
 505         if (!foundsep)
 506                 return (B_FALSE);
 507
 508         return (B_TRUE);
 509 }
 510
 511 /*
 512  * Returns true if this is a valid userspace-type property (one with a '@').
 513  * Note that after the @, any character is valid (eg, another @, for SID
 514  * user@domain).
 515  */
 516 boolean_t
 517 zfs_prop_userquota(const char *name)
 518 {
 519         zfs_userquota_prop_t prop;
 520
 521         for (prop = 0; prop < ZFS_NUM_USERQUOTA_PROPS; prop++) {
 522                 if (strncmp(name, zfs_userquota_prop_prefixes[prop],
 523                     strlen(zfs_userquota_prop_prefixes[prop])) == 0) {
 524                         return (B_TRUE);
 525                 }
 526         }
 527
 528         return (B_FALSE);
 529 }
 530
 531 /*
 532  * Returns true if this is a valid written@ property.
 533  * Note that after the @, any character is valid (eg, another @, for
 534  * written@pool/fs@origin).
 535  */
 536 boolean_t
 537 zfs_prop_written(const char *name)
 538 {
 539         static const char *prefix = "written@";
 540         return (strncmp(name, prefix, strlen(prefix)) == 0);
 541 }
 542
 543 /*
 544  * Tables of index types, plus functions to convert between the user view
 545  * (strings) and internal representation (uint64_t).
 546  */
 547 int
 548 zfs_prop_string_to_index(zfs_prop_t prop, const char *string, uint64_t *index)
 549 {
 550         return (zprop_string_to_index(prop, string, index, ZFS_TYPE_DATASET));
 551 }
 552
 553 int
 554 zfs_prop_index_to_string(zfs_prop_t prop, uint64_t index, const char **string)
 555 {
 556         return (zprop_index_to_string(prop, index, string, ZFS_TYPE_DATASET));
 557 }
 558
 559 uint64_t
 560 zfs_prop_random_value(zfs_prop_t prop, uint64_t seed)
 561 {
 562         return (zprop_random_value(prop, seed, ZFS_TYPE_DATASET));
 563 }
 564
 565 /*
 566  * Returns TRUE if the property applies to any of the given dataset types.
 567  */
 568 boolean_t
 569 zfs_prop_valid_for_type(int prop, zfs_type_t types)
 570 {
 571         return (zprop_valid_for_type(prop, types));
 572 }
 573
 574 zprop_type_t
 575 zfs_prop_get_type(zfs_prop_t prop)
 576 {
 577         return (zfs_prop_table[prop].pd_proptype);
 578 }
 579
 580 /*
 581  * Returns TRUE if the property is readonly.
 582  */
 583 boolean_t
 584 zfs_prop_readonly(zfs_prop_t prop)
 585 {
 586         return (zfs_prop_table[prop].pd_attr == PROP_READONLY ||
 587             zfs_prop_table[prop].pd_attr == PROP_ONETIME);
 588 }
 589
 590 /*
 591  * Returns TRUE if the property is visible (not hidden).
 592  */
 593 boolean_t
 594 zfs_prop_visible(zfs_prop_t prop)
 595 {
 596         return (zfs_prop_table[prop].pd_visible);
 597 }
 598
 599 /*
 600  * Returns TRUE if the property is only allowed to be set once.
 601  */
 602 boolean_t
 603 zfs_prop_setonce(zfs_prop_t prop)
 604 {
 605         return (zfs_prop_table[prop].pd_attr == PROP_ONETIME);
 606 }
 607
 608 const char *
 609 zfs_prop_default_string(zfs_prop_t prop)
 610 {
 611         return (zfs_prop_table[prop].pd_strdefault);
 612 }
 613
 614 uint64_t
 615 zfs_prop_default_numeric(zfs_prop_t prop)
 616 {
 617         return (zfs_prop_table[prop].pd_numdefault);
 618 }
 619
 620 /*
 621  * Given a dataset property ID, returns the corresponding name.
 622  * Assuming the zfs dataset property ID is valid.
 623  */
 624 const char *
 625 zfs_prop_to_name(zfs_prop_t prop)
 626 {
 627         return (zfs_prop_table[prop].pd_name);
 628 }
 629
 630 /*
 631  * Returns TRUE if the property is inheritable.
 632  */
 633 boolean_t
 634 zfs_prop_inheritable(zfs_prop_t prop)
 635 {
 636         return (zfs_prop_table[prop].pd_attr == PROP_INHERIT ||
 637             zfs_prop_table[prop].pd_attr == PROP_ONETIME);
 638 }
 639
 640 #ifndef _KERNEL
 641
 642 /*
 643  * Returns a string describing the set of acceptable values for the given
 644  * zfs property, or NULL if it cannot be set.
 645  */
 646 const char *
 647 zfs_prop_values(zfs_prop_t prop)
 648 {
 649         return (zfs_prop_table[prop].pd_values);
 650 }
 651
 652 /*
 653  * Returns TRUE if this property is a string type.  Note that index types
 654  * (compression, checksum) are treated as strings in userland, even though they
 655  * are stored numerically on disk.
 656  */
 657 int
 658 zfs_prop_is_string(zfs_prop_t prop)
 659 {
 660         return (zfs_prop_table[prop].pd_proptype == PROP_TYPE_STRING ||
 661             zfs_prop_table[prop].pd_proptype == PROP_TYPE_INDEX);
 662 }
 663
 664 /*
 665  * Returns the column header for the given property.  Used only in
 666  * 'zfs list -o', but centralized here with the other property information.
 667  */
 668 const char *
 669 zfs_prop_column_name(zfs_prop_t prop)
 670 {
 671         return (zfs_prop_table[prop].pd_colname);
 672 }
 673
 674 /*
 675  * Returns whether the given property should be displayed right-justified for
 676  * 'zfs list'.
 677  */
 678 boolean_t
 679 zfs_prop_align_right(zfs_prop_t prop)
 680 {
 681         return (zfs_prop_table[prop].pd_rightalign);
 682 }
 683
 684 #endif