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