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 2009 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 /* Note this is indexed by zfs_userquota_prop_t, keep the order the same */ 47 const char *zfs_userquota_prop_prefixes[] = { 48 "userused@", 49 "userquota@", 50 "groupused@", 51 "groupquota@" 52 }; 53 54 zprop_desc_t * 55 zfs_prop_get_table(void) 56 { 57 return (zfs_prop_table); 58 } 59 60 void 61 zfs_prop_init(void) 62 { 63 static zprop_index_t checksum_table[] = { 64 { "on", ZIO_CHECKSUM_ON }, 65 { "off", ZIO_CHECKSUM_OFF }, 66 { "fletcher2", ZIO_CHECKSUM_FLETCHER_2 }, 67 { "fletcher4", ZIO_CHECKSUM_FLETCHER_4 }, 68 { "sha256", ZIO_CHECKSUM_SHA256 }, 69 { NULL } 70 }; 71 72 static zprop_index_t dedup_table[] = { 73 { "on", ZIO_CHECKSUM_ON }, 74 { "off", ZIO_CHECKSUM_OFF }, 75 { "verify", ZIO_CHECKSUM_ON | ZIO_CHECKSUM_VERIFY }, 76 { "sha256", ZIO_CHECKSUM_SHA256 }, 77 { "sha256,verify", 78 ZIO_CHECKSUM_SHA256 | ZIO_CHECKSUM_VERIFY }, 79 { "fletcher4,verify", 80 ZIO_CHECKSUM_FLETCHER_4 | ZIO_CHECKSUM_VERIFY }, 81 { NULL } 82 }; 83 84 static zprop_index_t compress_table[] = { 85 { "on", ZIO_COMPRESS_ON }, 86 { "off", ZIO_COMPRESS_OFF }, 87 { "lzjb", ZIO_COMPRESS_LZJB }, 88 { "gzip", ZIO_COMPRESS_GZIP_6 }, /* gzip default */ 89 { "gzip-1", ZIO_COMPRESS_GZIP_1 }, 90 { "gzip-2", ZIO_COMPRESS_GZIP_2 }, 91 { "gzip-3", ZIO_COMPRESS_GZIP_3 }, 92 { "gzip-4", ZIO_COMPRESS_GZIP_4 }, 93 { "gzip-5", ZIO_COMPRESS_GZIP_5 }, 94 { "gzip-6", ZIO_COMPRESS_GZIP_6 }, 95 { "gzip-7", ZIO_COMPRESS_GZIP_7 }, 96 { "gzip-8", ZIO_COMPRESS_GZIP_8 }, 97 { "gzip-9", ZIO_COMPRESS_GZIP_9 }, 98 { "zle", ZIO_COMPRESS_ZLE }, 99 { NULL } 100 }; 101 102 static zprop_index_t snapdir_table[] = { 103 { "hidden", ZFS_SNAPDIR_HIDDEN }, 104 { "visible", ZFS_SNAPDIR_VISIBLE }, 105 { NULL } 106 }; 107 108 static zprop_index_t acl_mode_table[] = { 109 { "discard", ZFS_ACL_DISCARD }, 110 { "groupmask", ZFS_ACL_GROUPMASK }, 111 { "passthrough", ZFS_ACL_PASSTHROUGH }, 112 { NULL } 113 }; 114 115 static zprop_index_t acl_inherit_table[] = { 116 { "discard", ZFS_ACL_DISCARD }, 117 { "noallow", ZFS_ACL_NOALLOW }, 118 { "restricted", ZFS_ACL_RESTRICTED }, 119 { "passthrough", ZFS_ACL_PASSTHROUGH }, 120 { "secure", ZFS_ACL_RESTRICTED }, /* bkwrd compatability */ 121 { "passthrough-x", ZFS_ACL_PASSTHROUGH_X }, 122 { NULL } 123 }; 124 125 static zprop_index_t case_table[] = { 126 { "sensitive", ZFS_CASE_SENSITIVE }, 127 { "insensitive", ZFS_CASE_INSENSITIVE }, 128 { "mixed", ZFS_CASE_MIXED }, 129 { NULL } 130 }; 131 132 static zprop_index_t copies_table[] = { 133 { "1", 1 }, 134 { "2", 2 }, 135 { "3", 3 }, 136 { NULL } 137 }; 138 139 /* 140 * Use the unique flags we have to send to u8_strcmp() and/or 141 * u8_textprep() to represent the various normalization property 142 * values. 143 */ 144 static zprop_index_t normalize_table[] = { 145 { "none", 0 }, 146 { "formD", U8_TEXTPREP_NFD }, 147 { "formKC", U8_TEXTPREP_NFKC }, 148 { "formC", U8_TEXTPREP_NFC }, 149 { "formKD", U8_TEXTPREP_NFKD }, 150 { NULL } 151 }; 152 153 static zprop_index_t version_table[] = { 154 { "1", 1 }, 155 { "2", 2 }, 156 { "3", 3 }, 157 { "4", 4 }, 158 { "current", ZPL_VERSION }, 159 { NULL } 160 }; 161 162 static zprop_index_t boolean_table[] = { 163 { "off", 0 }, 164 { "on", 1 }, 165 { NULL } 166 }; 167 168 static zprop_index_t logbias_table[] = { 169 { "latency", ZFS_LOGBIAS_LATENCY }, 170 { "throughput", ZFS_LOGBIAS_THROUGHPUT }, 171 { NULL } 172 }; 173 174 static zprop_index_t canmount_table[] = { 175 { "off", ZFS_CANMOUNT_OFF }, 176 { "on", ZFS_CANMOUNT_ON }, 177 { "noauto", ZFS_CANMOUNT_NOAUTO }, 178 { NULL } 179 }; 180 181 static zprop_index_t cache_table[] = { 182 { "none", ZFS_CACHE_NONE }, 183 { "metadata", ZFS_CACHE_METADATA }, 184 { "all", ZFS_CACHE_ALL }, 185 { NULL } 186 }; 187 188 /* inherit index properties */ 189 register_index(ZFS_PROP_CHECKSUM, "checksum", ZIO_CHECKSUM_DEFAULT, 190 PROP_INHERIT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, 191 "on | off | fletcher2 | fletcher4 | sha256", "CHECKSUM", 192 checksum_table); 193 register_index(ZFS_PROP_DEDUP, "dedup", ZIO_CHECKSUM_OFF, 194 PROP_INHERIT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, 195 "on | off | verify | sha256[,verify] | fletcher4,verify", "DEDUP", 196 dedup_table); 197 register_index(ZFS_PROP_COMPRESSION, "compression", 198 ZIO_COMPRESS_DEFAULT, PROP_INHERIT, 199 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, 200 "on | off | lzjb | gzip | gzip-[1-9] | zle", "COMPRESS", 201 compress_table); 202 register_index(ZFS_PROP_SNAPDIR, "snapdir", ZFS_SNAPDIR_HIDDEN, 203 PROP_INHERIT, ZFS_TYPE_FILESYSTEM, 204 "hidden | visible", "SNAPDIR", snapdir_table); 205 register_index(ZFS_PROP_ACLMODE, "aclmode", ZFS_ACL_GROUPMASK, 206 PROP_INHERIT, ZFS_TYPE_FILESYSTEM, 207 "discard | groupmask | passthrough", "ACLMODE", acl_mode_table); 208 register_index(ZFS_PROP_ACLINHERIT, "aclinherit", ZFS_ACL_RESTRICTED, 209 PROP_INHERIT, ZFS_TYPE_FILESYSTEM, 210 "discard | noallow | restricted | passthrough | passthrough-x", 211 "ACLINHERIT", acl_inherit_table); 212 register_index(ZFS_PROP_COPIES, "copies", 1, 213 PROP_INHERIT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, 214 "1 | 2 | 3", "COPIES", copies_table); 215 register_index(ZFS_PROP_PRIMARYCACHE, "primarycache", 216 ZFS_CACHE_ALL, PROP_INHERIT, 217 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT | ZFS_TYPE_VOLUME, 218 "all | none | metadata", "PRIMARYCACHE", cache_table); 219 register_index(ZFS_PROP_SECONDARYCACHE, "secondarycache", 220 ZFS_CACHE_ALL, PROP_INHERIT, 221 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT | ZFS_TYPE_VOLUME, 222 "all | none | metadata", "SECONDARYCACHE", cache_table); 223 register_index(ZFS_PROP_LOGBIAS, "logbias", ZFS_LOGBIAS_LATENCY, 224 PROP_INHERIT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, 225 "latency | throughput", "LOGBIAS", logbias_table); 226 227 /* inherit index (boolean) properties */ 228 register_index(ZFS_PROP_ATIME, "atime", 1, PROP_INHERIT, 229 ZFS_TYPE_FILESYSTEM, "on | off", "ATIME", boolean_table); 230 register_index(ZFS_PROP_DEVICES, "devices", 1, PROP_INHERIT, 231 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT, "on | off", "DEVICES", 232 boolean_table); 233 register_index(ZFS_PROP_EXEC, "exec", 1, PROP_INHERIT, 234 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT, "on | off", "EXEC", 235 boolean_table); 236 register_index(ZFS_PROP_SETUID, "setuid", 1, PROP_INHERIT, 237 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT, "on | off", "SETUID", 238 boolean_table); 239 register_index(ZFS_PROP_READONLY, "readonly", 0, PROP_INHERIT, 240 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "on | off", "RDONLY", 241 boolean_table); 242 register_index(ZFS_PROP_ZONED, "zoned", 0, PROP_INHERIT, 243 ZFS_TYPE_FILESYSTEM, "on | off", "ZONED", boolean_table); 244 register_index(ZFS_PROP_XATTR, "xattr", 1, PROP_INHERIT, 245 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT, "on | off", "XATTR", 246 boolean_table); 247 register_index(ZFS_PROP_VSCAN, "vscan", 0, PROP_INHERIT, 248 ZFS_TYPE_FILESYSTEM, "on | off", "VSCAN", 249 boolean_table); 250 register_index(ZFS_PROP_NBMAND, "nbmand", 0, PROP_INHERIT, 251 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT, "on | off", "NBMAND", 252 boolean_table); 253 254 /* default index properties */ 255 register_index(ZFS_PROP_VERSION, "version", 0, PROP_DEFAULT, 256 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT, 257 "1 | 2 | 3 | 4 | current", "VERSION", version_table); 258 register_index(ZFS_PROP_CANMOUNT, "canmount", ZFS_CANMOUNT_ON, 259 PROP_DEFAULT, ZFS_TYPE_FILESYSTEM, "on | off | noauto", 260 "CANMOUNT", canmount_table); 261 262 /* readonly index (boolean) properties */ 263 register_index(ZFS_PROP_MOUNTED, "mounted", 0, PROP_READONLY, 264 ZFS_TYPE_FILESYSTEM, "yes | no", "MOUNTED", boolean_table); 265 register_index(ZFS_PROP_DEFER_DESTROY, "defer_destroy", 0, 266 PROP_READONLY, ZFS_TYPE_SNAPSHOT, "yes | no", "DEFER_DESTROY", 267 boolean_table); 268 269 /* set once index properties */ 270 register_index(ZFS_PROP_NORMALIZE, "normalization", 0, 271 PROP_ONETIME, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT, 272 "none | formC | formD | formKC | formKD", "NORMALIZATION", 273 normalize_table); 274 register_index(ZFS_PROP_CASE, "casesensitivity", ZFS_CASE_SENSITIVE, 275 PROP_ONETIME, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT, 276 "sensitive | insensitive | mixed", "CASE", case_table); 277 278 /* set once index (boolean) properties */ 279 register_index(ZFS_PROP_UTF8ONLY, "utf8only", 0, PROP_ONETIME, 280 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT, 281 "on | off", "UTF8ONLY", boolean_table); 282 283 /* string properties */ 284 register_string(ZFS_PROP_ORIGIN, "origin", NULL, PROP_READONLY, 285 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "<snapshot>", "ORIGIN"); 286 register_string(ZFS_PROP_MOUNTPOINT, "mountpoint", "/", PROP_INHERIT, 287 ZFS_TYPE_FILESYSTEM, "<path> | legacy | none", "MOUNTPOINT"); 288 register_string(ZFS_PROP_SHARENFS, "sharenfs", "off", PROP_INHERIT, 289 ZFS_TYPE_FILESYSTEM, "on | off | share(1M) options", "SHARENFS"); 290 register_string(ZFS_PROP_SHAREISCSI, "shareiscsi", "off", PROP_INHERIT, 291 ZFS_TYPE_DATASET, "on | off | type=<type>", "SHAREISCSI"); 292 register_string(ZFS_PROP_TYPE, "type", NULL, PROP_READONLY, 293 ZFS_TYPE_DATASET, "filesystem | volume | snapshot", "TYPE"); 294 register_string(ZFS_PROP_SHARESMB, "sharesmb", "off", PROP_INHERIT, 295 ZFS_TYPE_FILESYSTEM, "on | off | sharemgr(1M) options", "SHARESMB"); 296 297 /* readonly number properties */ 298 register_number(ZFS_PROP_USED, "used", 0, PROP_READONLY, 299 ZFS_TYPE_DATASET, "<size>", "USED"); 300 register_number(ZFS_PROP_AVAILABLE, "available", 0, PROP_READONLY, 301 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "<size>", "AVAIL"); 302 register_number(ZFS_PROP_REFERENCED, "referenced", 0, PROP_READONLY, 303 ZFS_TYPE_DATASET, "<size>", "REFER"); 304 register_number(ZFS_PROP_COMPRESSRATIO, "compressratio", 0, 305 PROP_READONLY, ZFS_TYPE_DATASET, 306 "<1.00x or higher if compressed>", "RATIO"); 307 register_number(ZFS_PROP_VOLBLOCKSIZE, "volblocksize", 8192, 308 PROP_ONETIME, 309 ZFS_TYPE_VOLUME, "512 to 128k, power of 2", "VOLBLOCK"); 310 register_number(ZFS_PROP_USEDSNAP, "usedbysnapshots", 0, PROP_READONLY, 311 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "<size>", "USEDSNAP"); 312 register_number(ZFS_PROP_USEDDS, "usedbydataset", 0, PROP_READONLY, 313 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "<size>", "USEDDS"); 314 register_number(ZFS_PROP_USEDCHILD, "usedbychildren", 0, PROP_READONLY, 315 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "<size>", "USEDCHILD"); 316 register_number(ZFS_PROP_USEDREFRESERV, "usedbyrefreservation", 0, 317 PROP_READONLY, 318 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "<size>", "USEDREFRESERV"); 319 register_number(ZFS_PROP_USERREFS, "userrefs", 0, PROP_READONLY, 320 ZFS_TYPE_SNAPSHOT, "<count>", "USERREFS"); 321 322 /* default number properties */ 323 register_number(ZFS_PROP_QUOTA, "quota", 0, PROP_DEFAULT, 324 ZFS_TYPE_FILESYSTEM, "<size> | none", "QUOTA"); 325 register_number(ZFS_PROP_RESERVATION, "reservation", 0, PROP_DEFAULT, 326 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "<size> | none", "RESERV"); 327 register_number(ZFS_PROP_VOLSIZE, "volsize", 0, PROP_DEFAULT, 328 ZFS_TYPE_VOLUME, "<size>", "VOLSIZE"); 329 register_number(ZFS_PROP_REFQUOTA, "refquota", 0, PROP_DEFAULT, 330 ZFS_TYPE_FILESYSTEM, "<size> | none", "REFQUOTA"); 331 register_number(ZFS_PROP_REFRESERVATION, "refreservation", 0, 332 PROP_DEFAULT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, 333 "<size> | none", "REFRESERV"); 334 335 /* inherit number properties */ 336 register_number(ZFS_PROP_RECORDSIZE, "recordsize", SPA_MAXBLOCKSIZE, 337 PROP_INHERIT, 338 ZFS_TYPE_FILESYSTEM, "512 to 128k, power of 2", "RECSIZE"); 339 340 /* hidden properties */ 341 register_hidden(ZFS_PROP_CREATETXG, "createtxg", PROP_TYPE_NUMBER, 342 PROP_READONLY, ZFS_TYPE_DATASET, "CREATETXG"); 343 register_hidden(ZFS_PROP_NUMCLONES, "numclones", PROP_TYPE_NUMBER, 344 PROP_READONLY, ZFS_TYPE_SNAPSHOT, "NUMCLONES"); 345 register_hidden(ZFS_PROP_NAME, "name", PROP_TYPE_STRING, 346 PROP_READONLY, ZFS_TYPE_DATASET, "NAME"); 347 register_hidden(ZFS_PROP_ISCSIOPTIONS, "iscsioptions", PROP_TYPE_STRING, 348 PROP_INHERIT, ZFS_TYPE_VOLUME, "ISCSIOPTIONS"); 349 register_hidden(ZFS_PROP_STMF_SHAREINFO, "stmf_sbd_lu", 350 PROP_TYPE_STRING, PROP_INHERIT, ZFS_TYPE_VOLUME, 351 "STMF_SBD_LU"); 352 register_hidden(ZFS_PROP_GUID, "guid", PROP_TYPE_NUMBER, PROP_READONLY, 353 ZFS_TYPE_DATASET, "GUID"); 354 register_hidden(ZFS_PROP_USERACCOUNTING, "useraccounting", 355 PROP_TYPE_NUMBER, PROP_READONLY, ZFS_TYPE_DATASET, 356 "USERACCOUNTING"); 357 register_hidden(ZFS_PROP_UNIQUE, "unique", PROP_TYPE_NUMBER, 358 PROP_READONLY, ZFS_TYPE_DATASET, "UNIQUE"); 359 register_hidden(ZFS_PROP_OBJSETID, "objsetid", PROP_TYPE_NUMBER, 360 PROP_READONLY, ZFS_TYPE_DATASET, "OBJSETID"); 361 362 /* oddball properties */ 363 register_impl(ZFS_PROP_CREATION, "creation", PROP_TYPE_NUMBER, 0, NULL, 364 PROP_READONLY, ZFS_TYPE_DATASET, 365 "<date>", "CREATION", B_FALSE, B_TRUE, NULL); 366 } 367 368 boolean_t 369 zfs_prop_delegatable(zfs_prop_t prop) 370 { 371 zprop_desc_t *pd = &zfs_prop_table[prop]; 372 return (pd->pd_attr != PROP_READONLY); 373 } 374 375 /* 376 * Given a zfs dataset property name, returns the corresponding property ID. 377 */ 378 zfs_prop_t 379 zfs_name_to_prop(const char *propname) 380 { 381 return (zprop_name_to_prop(propname, ZFS_TYPE_DATASET)); 382 } 383 384 /* 385 * For user property names, we allow all lowercase alphanumeric characters, plus 386 * a few useful punctuation characters. 387 */ 388 static int 389 valid_char(char c) 390 { 391 return ((c >= 'a' && c <= 'z') || 392 (c >= '0' && c <= '9') || 393 c == '-' || c == '_' || c == '.' || c == ':'); 394 } 395 396 /* 397 * Returns true if this is a valid user-defined property (one with a ':'). 398 */ 399 boolean_t 400 zfs_prop_user(const char *name) 401 { 402 int i; 403 char c; 404 boolean_t foundsep = B_FALSE; 405 406 for (i = 0; i < strlen(name); i++) { 407 c = name[i]; 408 if (!valid_char(c)) 409 return (B_FALSE); 410 if (c == ':') 411 foundsep = B_TRUE; 412 } 413 414 if (!foundsep) 415 return (B_FALSE); 416 417 return (B_TRUE); 418 } 419 420 /* 421 * Returns true if this is a valid userspace-type property (one with a '@'). 422 * Note that after the @, any character is valid (eg, another @, for SID 423 * user@domain). 424 */ 425 boolean_t 426 zfs_prop_userquota(const char *name) 427 { 428 zfs_userquota_prop_t prop; 429 430 for (prop = 0; prop < ZFS_NUM_USERQUOTA_PROPS; prop++) { 431 if (strncmp(name, zfs_userquota_prop_prefixes[prop], 432 strlen(zfs_userquota_prop_prefixes[prop])) == 0) { 433 return (B_TRUE); 434 } 435 } 436 437 return (B_FALSE); 438 } 439 440 /* 441 * Tables of index types, plus functions to convert between the user view 442 * (strings) and internal representation (uint64_t). 443 */ 444 int 445 zfs_prop_string_to_index(zfs_prop_t prop, const char *string, uint64_t *index) 446 { 447 return (zprop_string_to_index(prop, string, index, ZFS_TYPE_DATASET)); 448 } 449 450 int 451 zfs_prop_index_to_string(zfs_prop_t prop, uint64_t index, const char **string) 452 { 453 return (zprop_index_to_string(prop, index, string, ZFS_TYPE_DATASET)); 454 } 455 456 uint64_t 457 zfs_prop_random_value(zfs_prop_t prop, uint64_t seed) 458 { 459 return (zprop_random_value(prop, seed, ZFS_TYPE_DATASET)); 460 } 461 462 /* 463 * Returns TRUE if the property applies to any of the given dataset types. 464 */ 465 boolean_t 466 zfs_prop_valid_for_type(int prop, zfs_type_t types) 467 { 468 return (zprop_valid_for_type(prop, types)); 469 } 470 471 zprop_type_t 472 zfs_prop_get_type(zfs_prop_t prop) 473 { 474 return (zfs_prop_table[prop].pd_proptype); 475 } 476 477 /* 478 * Returns TRUE if the property is readonly. 479 */ 480 boolean_t 481 zfs_prop_readonly(zfs_prop_t prop) 482 { 483 return (zfs_prop_table[prop].pd_attr == PROP_READONLY || 484 zfs_prop_table[prop].pd_attr == PROP_ONETIME); 485 } 486 487 /* 488 * Returns TRUE if the property is only allowed to be set once. 489 */ 490 boolean_t 491 zfs_prop_setonce(zfs_prop_t prop) 492 { 493 return (zfs_prop_table[prop].pd_attr == PROP_ONETIME); 494 } 495 496 const char * 497 zfs_prop_default_string(zfs_prop_t prop) 498 { 499 return (zfs_prop_table[prop].pd_strdefault); 500 } 501 502 uint64_t 503 zfs_prop_default_numeric(zfs_prop_t prop) 504 { 505 return (zfs_prop_table[prop].pd_numdefault); 506 } 507 508 /* 509 * Given a dataset property ID, returns the corresponding name. 510 * Assuming the zfs dataset property ID is valid. 511 */ 512 const char * 513 zfs_prop_to_name(zfs_prop_t prop) 514 { 515 return (zfs_prop_table[prop].pd_name); 516 } 517 518 /* 519 * Returns TRUE if the property is inheritable. 520 */ 521 boolean_t 522 zfs_prop_inheritable(zfs_prop_t prop) 523 { 524 return (zfs_prop_table[prop].pd_attr == PROP_INHERIT || 525 zfs_prop_table[prop].pd_attr == PROP_ONETIME); 526 } 527 528 #ifndef _KERNEL 529 530 /* 531 * Returns a string describing the set of acceptable values for the given 532 * zfs property, or NULL if it cannot be set. 533 */ 534 const char * 535 zfs_prop_values(zfs_prop_t prop) 536 { 537 return (zfs_prop_table[prop].pd_values); 538 } 539 540 /* 541 * Returns TRUE if this property is a string type. Note that index types 542 * (compression, checksum) are treated as strings in userland, even though they 543 * are stored numerically on disk. 544 */ 545 int 546 zfs_prop_is_string(zfs_prop_t prop) 547 { 548 return (zfs_prop_table[prop].pd_proptype == PROP_TYPE_STRING || 549 zfs_prop_table[prop].pd_proptype == PROP_TYPE_INDEX); 550 } 551 552 /* 553 * Returns the column header for the given property. Used only in 554 * 'zfs list -o', but centralized here with the other property information. 555 */ 556 const char * 557 zfs_prop_column_name(zfs_prop_t prop) 558 { 559 return (zfs_prop_table[prop].pd_colname); 560 } 561 562 /* 563 * Returns whether the given property should be displayed right-justified for 564 * 'zfs list'. 565 */ 566 boolean_t 567 zfs_prop_align_right(zfs_prop_t prop) 568 { 569 return (zfs_prop_table[prop].pd_rightalign); 570 } 571 572 #endif 573