sys/cddl/contrib/opensolaris/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 2008 Sun Microsystems, Inc.  All rights reserved.
  23  * Use is subject to license terms.
  24  */
  25
  26 #include <sys/zio.h>
  27 #include <sys/spa.h>
  28 #include <sys/u8_textprep.h>
  29 #include <sys/zfs_acl.h>
  30 #include <sys/zfs_ioctl.h>
  31 #include <sys/zfs_znode.h>
  32
  33 #include "zfs_prop.h"
  34 #include "zfs_deleg.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 zfs_prop_table[ZFS_NUM_PROPS];
  45
  46 zprop_desc_t *
  47 zfs_prop_get_table(void)
  48 {
  49         return (zfs_prop_table);
  50 }
  51
  52 void
  53 zfs_prop_init(void)
  54 {
  55         static zprop_index_t checksum_table[] = {
  56                 { "on",         ZIO_CHECKSUM_ON },
  57                 { "off",        ZIO_CHECKSUM_OFF },
  58                 { "fletcher2",  ZIO_CHECKSUM_FLETCHER_2 },
  59                 { "fletcher4",  ZIO_CHECKSUM_FLETCHER_4 },
  60                 { "sha256",     ZIO_CHECKSUM_SHA256 },
  61                 { NULL }
  62         };
  63
  64         static zprop_index_t compress_table[] = {
  65                 { "on",         ZIO_COMPRESS_ON },
  66                 { "off",        ZIO_COMPRESS_OFF },
  67                 { "lzjb",       ZIO_COMPRESS_LZJB },
  68                 { "gzip",       ZIO_COMPRESS_GZIP_6 },  /* gzip default */
  69                 { "gzip-1",     ZIO_COMPRESS_GZIP_1 },
  70                 { "gzip-2",     ZIO_COMPRESS_GZIP_2 },
  71                 { "gzip-3",     ZIO_COMPRESS_GZIP_3 },
  72                 { "gzip-4",     ZIO_COMPRESS_GZIP_4 },
  73                 { "gzip-5",     ZIO_COMPRESS_GZIP_5 },
  74                 { "gzip-6",     ZIO_COMPRESS_GZIP_6 },
  75                 { "gzip-7",     ZIO_COMPRESS_GZIP_7 },
  76                 { "gzip-8",     ZIO_COMPRESS_GZIP_8 },
  77                 { "gzip-9",     ZIO_COMPRESS_GZIP_9 },
  78                 { NULL }
  79         };
  80
  81         static zprop_index_t snapdir_table[] = {
  82                 { "hidden",     ZFS_SNAPDIR_HIDDEN },
  83                 { "visible",    ZFS_SNAPDIR_VISIBLE },
  84                 { NULL }
  85         };
  86
  87         static zprop_index_t acl_mode_table[] = {
  88                 { "discard",    ZFS_ACL_DISCARD },
  89                 { "groupmask",  ZFS_ACL_GROUPMASK },
  90                 { "passthrough", ZFS_ACL_PASSTHROUGH },
  91                 { NULL }
  92         };
  93
  94         static zprop_index_t acl_inherit_table[] = {
  95                 { "discard",    ZFS_ACL_DISCARD },
  96                 { "noallow",    ZFS_ACL_NOALLOW },
  97                 { "restricted", ZFS_ACL_RESTRICTED },
  98                 { "passthrough", ZFS_ACL_PASSTHROUGH },
  99                 { "secure",     ZFS_ACL_RESTRICTED }, /* bkwrd compatability */
 100                 { "passthrough-x", ZFS_ACL_PASSTHROUGH_X },
 101                 { NULL }
 102         };
 103
 104         static zprop_index_t case_table[] = {
 105                 { "sensitive",          ZFS_CASE_SENSITIVE },
 106                 { "insensitive",        ZFS_CASE_INSENSITIVE },
 107                 { "mixed",              ZFS_CASE_MIXED },
 108                 { NULL }
 109         };
 110
 111         static zprop_index_t copies_table[] = {
 112                 { "1",          1 },
 113                 { "2",          2 },
 114                 { "3",          3 },
 115                 { NULL }
 116         };
 117
 118         /*
 119          * Use the unique flags we have to send to u8_strcmp() and/or
 120          * u8_textprep() to represent the various normalization property
 121          * values.
 122          */
 123         static zprop_index_t normalize_table[] = {
 124                 { "none",       0 },
 125                 { "formD",      U8_TEXTPREP_NFD },
 126                 { "formKC",     U8_TEXTPREP_NFKC },
 127                 { "formC",      U8_TEXTPREP_NFC },
 128                 { "formKD",     U8_TEXTPREP_NFKD },
 129                 { NULL }
 130         };
 131
 132         static zprop_index_t version_table[] = {
 133                 { "1",          1 },
 134                 { "2",          2 },
 135                 { "3",          3 },
 136                 { "current",    ZPL_VERSION },
 137                 { NULL }
 138         };
 139
 140         static zprop_index_t boolean_table[] = {
 141                 { "off",        0 },
 142                 { "on",         1 },
 143                 { NULL }
 144         };
 145
 146         static zprop_index_t canmount_table[] = {
 147                 { "off",        ZFS_CANMOUNT_OFF },
 148                 { "on",         ZFS_CANMOUNT_ON },
 149                 { "noauto",     ZFS_CANMOUNT_NOAUTO },
 150                 { NULL }
 151         };
 152
 153         static zprop_index_t cache_table[] = {
 154                 { "none",       ZFS_CACHE_NONE },
 155                 { "metadata",   ZFS_CACHE_METADATA },
 156                 { "all",        ZFS_CACHE_ALL },
 157                 { NULL }
 158         };
 159
 160         /* inherit index properties */
 161         register_index(ZFS_PROP_CHECKSUM, "checksum", ZIO_CHECKSUM_DEFAULT,
 162             PROP_INHERIT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME,
 163             "on | off | fletcher2 | fletcher4 | sha256", "CHECKSUM",
 164             checksum_table);
 165         register_index(ZFS_PROP_COMPRESSION, "compression",
 166             ZIO_COMPRESS_DEFAULT, PROP_INHERIT,
 167             ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME,
 168             "on | off | lzjb | gzip | gzip-[1-9]", "COMPRESS", compress_table);
 169         register_index(ZFS_PROP_SNAPDIR, "snapdir", ZFS_SNAPDIR_HIDDEN,
 170             PROP_INHERIT, ZFS_TYPE_FILESYSTEM,
 171             "hidden | visible", "SNAPDIR", snapdir_table);
 172         register_index(ZFS_PROP_ACLMODE, "aclmode", ZFS_ACL_GROUPMASK,
 173             PROP_INHERIT, ZFS_TYPE_FILESYSTEM,
 174             "discard | groupmask | passthrough", "ACLMODE", acl_mode_table);
 175         register_index(ZFS_PROP_ACLINHERIT, "aclinherit", ZFS_ACL_RESTRICTED,
 176             PROP_INHERIT, ZFS_TYPE_FILESYSTEM,
 177             "discard | noallow | restricted | passthrough | passthrough-x",
 178             "ACLINHERIT", acl_inherit_table);
 179         register_index(ZFS_PROP_COPIES, "copies", 1,
 180             PROP_INHERIT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME,
 181             "1 | 2 | 3", "COPIES", copies_table);
 182         register_index(ZFS_PROP_PRIMARYCACHE, "primarycache",
 183             ZFS_CACHE_ALL, PROP_INHERIT,
 184             ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT | ZFS_TYPE_VOLUME,
 185             "all | none | metadata", "PRIMARYCACHE", cache_table);
 186         register_index(ZFS_PROP_SECONDARYCACHE, "secondarycache",
 187             ZFS_CACHE_ALL, PROP_INHERIT,
 188             ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT | ZFS_TYPE_VOLUME,
 189             "all | none | metadata", "SECONDARYCACHE", cache_table);
 190
 191         /* inherit index (boolean) properties */
 192         register_index(ZFS_PROP_ATIME, "atime", 1, PROP_INHERIT,
 193             ZFS_TYPE_FILESYSTEM, "on | off", "ATIME", boolean_table);
 194         register_index(ZFS_PROP_DEVICES, "devices", 1, PROP_INHERIT,
 195             ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT, "on | off", "DEVICES",
 196             boolean_table);
 197         register_index(ZFS_PROP_EXEC, "exec", 1, PROP_INHERIT,
 198             ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT, "on | off", "EXEC",
 199             boolean_table);
 200         register_index(ZFS_PROP_SETUID, "setuid", 1, PROP_INHERIT,
 201             ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT, "on | off", "SETUID",
 202             boolean_table);
 203         register_index(ZFS_PROP_READONLY, "readonly", 0, PROP_INHERIT,
 204             ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "on | off", "RDONLY",
 205             boolean_table);
 206         register_index(ZFS_PROP_ZONED, "jailed", 0, PROP_INHERIT,
 207             ZFS_TYPE_FILESYSTEM, "on | off", "JAILED", boolean_table);
 208         register_index(ZFS_PROP_XATTR, "xattr", 1, PROP_INHERIT,
 209             ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT, "on | off", "XATTR",
 210             boolean_table);
 211         register_index(ZFS_PROP_VSCAN, "vscan", 0, PROP_INHERIT,
 212             ZFS_TYPE_FILESYSTEM, "on | off", "VSCAN",
 213             boolean_table);
 214         register_index(ZFS_PROP_NBMAND, "nbmand", 0, PROP_INHERIT,
 215             ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT, "on | off", "NBMAND",
 216             boolean_table);
 217
 218         /* default index properties */
 219         register_index(ZFS_PROP_VERSION, "version", 0, PROP_DEFAULT,
 220             ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT,
 221             "1 | 2 | 3 | current", "VERSION", version_table);
 222         register_index(ZFS_PROP_CANMOUNT, "canmount", ZFS_CANMOUNT_ON,
 223             PROP_DEFAULT, ZFS_TYPE_FILESYSTEM, "on | off | noauto",
 224             "CANMOUNT", canmount_table);
 225
 226         /* readonly index (boolean) properties */
 227         register_index(ZFS_PROP_MOUNTED, "mounted", 0, PROP_READONLY,
 228             ZFS_TYPE_FILESYSTEM, "yes | no", "MOUNTED", boolean_table);
 229
 230         /* set once index properties */
 231         register_index(ZFS_PROP_NORMALIZE, "normalization", 0,
 232             PROP_ONETIME, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT,
 233             "none | formC | formD | formKC | formKD", "NORMALIZATION",
 234             normalize_table);
 235         register_index(ZFS_PROP_CASE, "casesensitivity", ZFS_CASE_SENSITIVE,
 236             PROP_ONETIME, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT,
 237             "sensitive | insensitive | mixed", "CASE", case_table);
 238
 239         /* set once index (boolean) properties */
 240         register_index(ZFS_PROP_UTF8ONLY, "utf8only", 0, PROP_ONETIME,
 241             ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT,
 242             "on | off", "UTF8ONLY", boolean_table);
 243
 244         /* string properties */
 245         register_string(ZFS_PROP_ORIGIN, "origin", NULL, PROP_READONLY,
 246             ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "<snapshot>", "ORIGIN");
 247         register_string(ZFS_PROP_MOUNTPOINT, "mountpoint", "/", PROP_INHERIT,
 248             ZFS_TYPE_FILESYSTEM, "<path> | legacy | none", "MOUNTPOINT");
 249         register_string(ZFS_PROP_SHARENFS, "sharenfs", "off", PROP_INHERIT,
 250             ZFS_TYPE_FILESYSTEM, "on | off | share(1M) options", "SHARENFS");
 251         register_string(ZFS_PROP_SHAREISCSI, "shareiscsi", "off", PROP_INHERIT,
 252             ZFS_TYPE_DATASET, "on | off | type=<type>", "SHAREISCSI");
 253         register_string(ZFS_PROP_TYPE, "type", NULL, PROP_READONLY,
 254             ZFS_TYPE_DATASET, "filesystem | volume | snapshot", "TYPE");
 255         register_string(ZFS_PROP_SHARESMB, "sharesmb", "off", PROP_INHERIT,
 256             ZFS_TYPE_FILESYSTEM, "on | off | sharemgr(1M) options", "SHARESMB");
 257
 258         /* readonly number properties */
 259         register_number(ZFS_PROP_USED, "used", 0, PROP_READONLY,
 260             ZFS_TYPE_DATASET, "<size>", "USED");
 261         register_number(ZFS_PROP_AVAILABLE, "available", 0, PROP_READONLY,
 262             ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "<size>", "AVAIL");
 263         register_number(ZFS_PROP_REFERENCED, "referenced", 0, PROP_READONLY,
 264             ZFS_TYPE_DATASET, "<size>", "REFER");
 265         register_number(ZFS_PROP_COMPRESSRATIO, "compressratio", 0,
 266             PROP_READONLY, ZFS_TYPE_DATASET,
 267             "<1.00x or higher if compressed>", "RATIO");
 268         register_number(ZFS_PROP_VOLBLOCKSIZE, "volblocksize", 8192,
 269             PROP_ONETIME,
 270             ZFS_TYPE_VOLUME, "512 to 128k, power of 2", "VOLBLOCK");
 271         register_number(ZFS_PROP_USEDSNAP, "usedbysnapshots", 0, PROP_READONLY,
 272             ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "<size>", "USEDSNAP");
 273         register_number(ZFS_PROP_USEDDS, "usedbydataset", 0, PROP_READONLY,
 274             ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "<size>", "USEDDS");
 275         register_number(ZFS_PROP_USEDCHILD, "usedbychildren", 0, PROP_READONLY,
 276             ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "<size>", "USEDCHILD");
 277         register_number(ZFS_PROP_USEDREFRESERV, "usedbyrefreservation", 0,
 278             PROP_READONLY,
 279             ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "<size>", "USEDREFRESERV");
 280
 281         /* default number properties */
 282         register_number(ZFS_PROP_QUOTA, "quota", 0, PROP_DEFAULT,
 283             ZFS_TYPE_FILESYSTEM, "<size> | none", "QUOTA");
 284         register_number(ZFS_PROP_RESERVATION, "reservation", 0, PROP_DEFAULT,
 285             ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "<size> | none", "RESERV");
 286         register_number(ZFS_PROP_VOLSIZE, "volsize", 0, PROP_DEFAULT,
 287             ZFS_TYPE_VOLUME, "<size>", "VOLSIZE");
 288         register_number(ZFS_PROP_REFQUOTA, "refquota", 0, PROP_DEFAULT,
 289             ZFS_TYPE_FILESYSTEM, "<size> | none", "REFQUOTA");
 290         register_number(ZFS_PROP_REFRESERVATION, "refreservation", 0,
 291             PROP_DEFAULT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME,
 292             "<size> | none", "REFRESERV");
 293
 294         /* inherit number properties */
 295         register_number(ZFS_PROP_RECORDSIZE, "recordsize", SPA_MAXBLOCKSIZE,
 296             PROP_INHERIT,
 297             ZFS_TYPE_FILESYSTEM, "512 to 128k, power of 2", "RECSIZE");
 298
 299         /* hidden properties */
 300         register_hidden(ZFS_PROP_CREATETXG, "createtxg", PROP_TYPE_NUMBER,
 301             PROP_READONLY, ZFS_TYPE_DATASET, "CREATETXG");
 302         register_hidden(ZFS_PROP_NUMCLONES, "numclones", PROP_TYPE_NUMBER,
 303             PROP_READONLY, ZFS_TYPE_SNAPSHOT, NULL);
 304         register_hidden(ZFS_PROP_NAME, "name", PROP_TYPE_STRING,
 305             PROP_READONLY, ZFS_TYPE_DATASET, "NAME");
 306         register_hidden(ZFS_PROP_ISCSIOPTIONS, "iscsioptions", PROP_TYPE_STRING,
 307             PROP_INHERIT, ZFS_TYPE_VOLUME, "ISCSIOPTIONS");
 308         register_hidden(ZFS_PROP_GUID, "guid", PROP_TYPE_NUMBER, PROP_READONLY,
 309             ZFS_TYPE_DATASET, "GUID");
 310
 311         /* oddball properties */
 312         register_impl(ZFS_PROP_CREATION, "creation", PROP_TYPE_NUMBER, 0, NULL,
 313             PROP_READONLY, ZFS_TYPE_DATASET,
 314             "<date>", "CREATION", B_FALSE, B_TRUE, NULL);
 315 }
 316
 317 boolean_t
 318 zfs_prop_delegatable(zfs_prop_t prop)
 319 {
 320         zprop_desc_t *pd = &zfs_prop_table[prop];
 321         return (pd->pd_attr != PROP_READONLY);
 322 }
 323
 324 /*
 325  * Given a zfs dataset property name, returns the corresponding property ID.
 326  */
 327 zfs_prop_t
 328 zfs_name_to_prop(const char *propname)
 329 {
 330         return (zprop_name_to_prop(propname, ZFS_TYPE_DATASET));
 331 }
 332
 333
 334 /*
 335  * For user property names, we allow all lowercase alphanumeric characters, plus
 336  * a few useful punctuation characters.
 337  */
 338 static int
 339 valid_char(char c)
 340 {
 341         return ((c >= 'a' && c <= 'z') ||
 342             (c >= '0' && c <= '9') ||
 343             c == '-' || c == '_' || c == '.' || c == ':');
 344 }
 345
 346 /*
 347  * Returns true if this is a valid user-defined property (one with a ':').
 348  */
 349 boolean_t
 350 zfs_prop_user(const char *name)
 351 {
 352         int i;
 353         char c;
 354         boolean_t foundsep = B_FALSE;
 355
 356         for (i = 0; i < strlen(name); i++) {
 357                 c = name[i];
 358                 if (!valid_char(c))
 359                         return (B_FALSE);
 360                 if (c == ':')
 361                         foundsep = B_TRUE;
 362         }
 363
 364         if (!foundsep)
 365                 return (B_FALSE);
 366
 367         return (B_TRUE);
 368 }
 369
 370 /*
 371  * Tables of index types, plus functions to convert between the user view
 372  * (strings) and internal representation (uint64_t).
 373  */
 374 int
 375 zfs_prop_string_to_index(zfs_prop_t prop, const char *string, uint64_t *index)
 376 {
 377         return (zprop_string_to_index(prop, string, index, ZFS_TYPE_DATASET));
 378 }
 379
 380 int
 381 zfs_prop_index_to_string(zfs_prop_t prop, uint64_t index, const char **string)
 382 {
 383         return (zprop_index_to_string(prop, index, string, ZFS_TYPE_DATASET));
 384 }
 385
 386 /*
 387  * Returns TRUE if the property applies to any of the given dataset types.
 388  */
 389 boolean_t
 390 zfs_prop_valid_for_type(int prop, zfs_type_t types)
 391 {
 392         return (zprop_valid_for_type(prop, types));
 393 }
 394
 395 zprop_type_t
 396 zfs_prop_get_type(zfs_prop_t prop)
 397 {
 398         return (zfs_prop_table[prop].pd_proptype);
 399 }
 400
 401 /*
 402  * Returns TRUE if the property is readonly.
 403  */
 404 boolean_t
 405 zfs_prop_readonly(zfs_prop_t prop)
 406 {
 407         return (zfs_prop_table[prop].pd_attr == PROP_READONLY ||
 408             zfs_prop_table[prop].pd_attr == PROP_ONETIME);
 409 }
 410
 411 /*
 412  * Returns TRUE if the property is only allowed to be set once.
 413  */
 414 boolean_t
 415 zfs_prop_setonce(zfs_prop_t prop)
 416 {
 417         return (zfs_prop_table[prop].pd_attr == PROP_ONETIME);
 418 }
 419
 420 const char *
 421 zfs_prop_default_string(zfs_prop_t prop)
 422 {
 423         return (zfs_prop_table[prop].pd_strdefault);
 424 }
 425
 426 uint64_t
 427 zfs_prop_default_numeric(zfs_prop_t prop)
 428 {
 429         return (zfs_prop_table[prop].pd_numdefault);
 430 }
 431
 432 /*
 433  * Given a dataset property ID, returns the corresponding name.
 434  * Assuming the zfs dataset property ID is valid.
 435  */
 436 const char *
 437 zfs_prop_to_name(zfs_prop_t prop)
 438 {
 439         return (zfs_prop_table[prop].pd_name);
 440 }
 441
 442 /*
 443  * Returns TRUE if the property is inheritable.
 444  */
 445 boolean_t
 446 zfs_prop_inheritable(zfs_prop_t prop)
 447 {
 448         return (zfs_prop_table[prop].pd_attr == PROP_INHERIT ||
 449             zfs_prop_table[prop].pd_attr == PROP_ONETIME);
 450 }
 451
 452 #ifndef _KERNEL
 453
 454 /*
 455  * Returns a string describing the set of acceptable values for the given
 456  * zfs property, or NULL if it cannot be set.
 457  */
 458 const char *
 459 zfs_prop_values(zfs_prop_t prop)
 460 {
 461         return (zfs_prop_table[prop].pd_values);
 462 }
 463
 464 /*
 465  * Returns TRUE if this property is a string type.  Note that index types
 466  * (compression, checksum) are treated as strings in userland, even though they
 467  * are stored numerically on disk.
 468  */
 469 int
 470 zfs_prop_is_string(zfs_prop_t prop)
 471 {
 472         return (zfs_prop_table[prop].pd_proptype == PROP_TYPE_STRING ||
 473             zfs_prop_table[prop].pd_proptype == PROP_TYPE_INDEX);
 474 }
 475
 476 /*
 477  * Returns the column header for the given property.  Used only in
 478  * 'zfs list -o', but centralized here with the other property information.
 479  */
 480 const char *
 481 zfs_prop_column_name(zfs_prop_t prop)
 482 {
 483         return (zfs_prop_table[prop].pd_colname);
 484 }
 485
 486 /*
 487  * Returns whether the given property should be displayed right-justified for
 488  * 'zfs list'.
 489  */
 490 boolean_t
 491 zfs_prop_align_right(zfs_prop_t prop)
 492 {
 493         return (zfs_prop_table[prop].pd_rightalign);
 494 }
 495
 496 #endif