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 2010 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 { NULL } 80 }; 81 82 static zprop_index_t compress_table[] = { 83 { "on", ZIO_COMPRESS_ON }, 84 { "off", ZIO_COMPRESS_OFF }, 85 { "lzjb", ZIO_COMPRESS_LZJB }, 86 { "gzip", ZIO_COMPRESS_GZIP_6 }, /* gzip default */ 87 { "gzip-1", ZIO_COMPRESS_GZIP_1 }, 88 { "gzip-2", ZIO_COMPRESS_GZIP_2 }, 89 { "gzip-3", ZIO_COMPRESS_GZIP_3 }, 90 { "gzip-4", ZIO_COMPRESS_GZIP_4 }, 91 { "gzip-5", ZIO_COMPRESS_GZIP_5 }, 92 { "gzip-6", ZIO_COMPRESS_GZIP_6 }, 93 { "gzip-7", ZIO_COMPRESS_GZIP_7 }, 94 { "gzip-8", ZIO_COMPRESS_GZIP_8 }, 95 { "gzip-9", ZIO_COMPRESS_GZIP_9 }, 96 { "zle", ZIO_COMPRESS_ZLE }, 97 { NULL } 98 }; 99 100 static zprop_index_t snapdir_table[] = { 101 { "hidden", ZFS_SNAPDIR_HIDDEN }, 102 { "visible", ZFS_SNAPDIR_VISIBLE }, 103 { NULL } 104 }; 105 106 static zprop_index_t acl_mode_table[] = { 107 { "discard", ZFS_ACL_DISCARD }, 108 { "groupmask", ZFS_ACL_GROUPMASK }, 109 { "passthrough", ZFS_ACL_PASSTHROUGH }, 110 { NULL } 111 }; 112 113 static zprop_index_t acl_inherit_table[] = { 114 { "discard", ZFS_ACL_DISCARD }, 115 { "noallow", ZFS_ACL_NOALLOW }, 116 { "restricted", ZFS_ACL_RESTRICTED }, 117 { "passthrough", ZFS_ACL_PASSTHROUGH }, 118 { "secure", ZFS_ACL_RESTRICTED }, /* bkwrd compatability */ 119 { "passthrough-x", ZFS_ACL_PASSTHROUGH_X }, 120 { NULL } 121 }; 122 123 static zprop_index_t case_table[] = { 124 { "sensitive", ZFS_CASE_SENSITIVE }, 125 { "insensitive", ZFS_CASE_INSENSITIVE }, 126 { "mixed", ZFS_CASE_MIXED }, 127 { NULL } 128 }; 129 130 static zprop_index_t copies_table[] = { 131 { "1", 1 }, 132 { "2", 2 }, 133 { "3", 3 }, 134 { NULL } 135 }; 136 137 /* 138 * Use the unique flags we have to send to u8_strcmp() and/or 139 * u8_textprep() to represent the various normalization property 140 * values. 141 */ 142 static zprop_index_t normalize_table[] = { 143 { "none", 0 }, 144 { "formD", U8_TEXTPREP_NFD }, 145 { "formKC", U8_TEXTPREP_NFKC }, 146 { "formC", U8_TEXTPREP_NFC }, 147 { "formKD", U8_TEXTPREP_NFKD }, 148 { NULL } 149 }; 150 151 static zprop_index_t version_table[] = { 152 { "1", 1 }, 153 { "2", 2 }, 154 { "3", 3 }, 155 { "4", 4 }, 156 { "5", 5 }, 157 { "current", ZPL_VERSION }, 158 { NULL } 159 }; 160 161 static zprop_index_t boolean_table[] = { 162 { "off", 0 }, 163 { "on", 1 }, 164 { NULL } 165 }; 166 167 static zprop_index_t logbias_table[] = { 168 { "latency", ZFS_LOGBIAS_LATENCY }, 169 { "throughput", ZFS_LOGBIAS_THROUGHPUT }, 170 { NULL } 171 }; 172 173 static zprop_index_t canmount_table[] = { 174 { "off", ZFS_CANMOUNT_OFF }, 175 { "on", ZFS_CANMOUNT_ON }, 176 { "noauto", ZFS_CANMOUNT_NOAUTO }, 177 { NULL } 178 }; 179 180 static zprop_index_t cache_table[] = { 181 { "none", ZFS_CACHE_NONE }, 182 { "metadata", ZFS_CACHE_METADATA }, 183 { "all", ZFS_CACHE_ALL }, 184 { NULL } 185 }; 186 187 /* inherit index properties */ 188 register_index(ZFS_PROP_CHECKSUM, "checksum", ZIO_CHECKSUM_DEFAULT, 189 PROP_INHERIT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, 190 "on | off | fletcher2 | fletcher4 | sha256", "CHECKSUM", 191 checksum_table); 192 register_index(ZFS_PROP_DEDUP, "dedup", ZIO_CHECKSUM_OFF, 193 PROP_INHERIT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, 194 "on | off | verify | sha256[,verify]", "DEDUP", 195 dedup_table); 196 register_index(ZFS_PROP_COMPRESSION, "compression", 197 ZIO_COMPRESS_DEFAULT, PROP_INHERIT, 198 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, 199 "on | off | lzjb | gzip | gzip-[1-9] | zle", "COMPRESS", 200 compress_table); 201 register_index(ZFS_PROP_SNAPDIR, "snapdir", ZFS_SNAPDIR_HIDDEN, 202 PROP_INHERIT, ZFS_TYPE_FILESYSTEM, 203 "hidden | visible", "SNAPDIR", snapdir_table); 204 register_index(ZFS_PROP_ACLMODE, "aclmode", ZFS_ACL_GROUPMASK, 205 PROP_INHERIT, ZFS_TYPE_FILESYSTEM, 206 "discard | groupmask | passthrough", "ACLMODE", acl_mode_table); 207 register_index(ZFS_PROP_ACLINHERIT, "aclinherit", ZFS_ACL_RESTRICTED, 208 PROP_INHERIT, ZFS_TYPE_FILESYSTEM, 209 "discard | noallow | restricted | passthrough | passthrough-x", 210 "ACLINHERIT", acl_inherit_table); 211 register_index(ZFS_PROP_COPIES, "copies", 1, 212 PROP_INHERIT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, 213 "1 | 2 | 3", "COPIES", copies_table); 214 register_index(ZFS_PROP_PRIMARYCACHE, "primarycache", 215 ZFS_CACHE_ALL, PROP_INHERIT, 216 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT | ZFS_TYPE_VOLUME, 217 "all | none | metadata", "PRIMARYCACHE", cache_table); 218 register_index(ZFS_PROP_SECONDARYCACHE, "secondarycache", 219 ZFS_CACHE_ALL, PROP_INHERIT, 220 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT | ZFS_TYPE_VOLUME, 221 "all | none | metadata", "SECONDARYCACHE", cache_table); 222 register_index(ZFS_PROP_LOGBIAS, "logbias", ZFS_LOGBIAS_LATENCY, 223 PROP_INHERIT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, 224 "latency | throughput", "LOGBIAS", logbias_table); 225 226 /* inherit index (boolean) properties */ 227 register_index(ZFS_PROP_ATIME, "atime", 1, PROP_INHERIT, 228 ZFS_TYPE_FILESYSTEM, "on | off", "ATIME", boolean_table); 229 register_index(ZFS_PROP_DEVICES, "devices", 1, PROP_INHERIT, 230 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT, "on | off", "DEVICES", 231 boolean_table); 232 register_index(ZFS_PROP_EXEC, "exec", 1, PROP_INHERIT, 233 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT, "on | off", "EXEC", 234 boolean_table); 235 register_index(ZFS_PROP_SETUID, "setuid", 1, PROP_INHERIT, 236 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT, "on | off", "SETUID", 237 boolean_table); 238 register_index(ZFS_PROP_READONLY, "readonly", 0, PROP_INHERIT, 239 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "on | off", "RDONLY", 240 boolean_table); 241 register_index(ZFS_PROP_ZONED, "zoned", 0, PROP_INHERIT, 242 ZFS_TYPE_FILESYSTEM, "on | off", "ZONED", boolean_table); 243 register_index(ZFS_PROP_XATTR, "xattr", 1, PROP_INHERIT, 244 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT, "on | off", "XATTR", 245 boolean_table); 246 register_index(ZFS_PROP_VSCAN, "vscan", 0, PROP_INHERIT, 247 ZFS_TYPE_FILESYSTEM, "on | off", "VSCAN", 248 boolean_table); 249 register_index(ZFS_PROP_NBMAND, "nbmand", 0, PROP_INHERIT, 250 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT, "on | off", "NBMAND", 251 boolean_table); 252 253 /* default index properties */ 254 register_index(ZFS_PROP_VERSION, "version", 0, PROP_DEFAULT, 255 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT, 256 "1 | 2 | 3 | 4 | current", "VERSION", version_table); 257 register_index(ZFS_PROP_CANMOUNT, "canmount", ZFS_CANMOUNT_ON, 258 PROP_DEFAULT, ZFS_TYPE_FILESYSTEM, "on | off | noauto", 259 "CANMOUNT", canmount_table); 260 261 /* readonly index (boolean) properties */ 262 register_index(ZFS_PROP_MOUNTED, "mounted", 0, PROP_READONLY, 263 ZFS_TYPE_FILESYSTEM, "yes | no", "MOUNTED", boolean_table); 264 register_index(ZFS_PROP_DEFER_DESTROY, "defer_destroy", 0, 265 PROP_READONLY, ZFS_TYPE_SNAPSHOT, "yes | no", "DEFER_DESTROY", 266 boolean_table); 267 268 /* set once index properties */ 269 register_index(ZFS_PROP_NORMALIZE, "normalization", 0, 270 PROP_ONETIME, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT, 271 "none | formC | formD | formKC | formKD", "NORMALIZATION", 272 normalize_table); 273 register_index(ZFS_PROP_CASE, "casesensitivity", ZFS_CASE_SENSITIVE, 274 PROP_ONETIME, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT, 275 "sensitive | insensitive | mixed", "CASE", case_table); 276 277 /* set once index (boolean) properties */ 278 register_index(ZFS_PROP_UTF8ONLY, "utf8only", 0, PROP_ONETIME, 279 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT, 280 "on | off", "UTF8ONLY", boolean_table); 281 282 /* string properties */ 283 register_string(ZFS_PROP_ORIGIN, "origin", NULL, PROP_READONLY, 284 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "<snapshot>", "ORIGIN"); 285 register_string(ZFS_PROP_MOUNTPOINT, "mountpoint", "/", PROP_INHERIT, 286 ZFS_TYPE_FILESYSTEM, "<path> | legacy | none", "MOUNTPOINT"); 287 register_string(ZFS_PROP_SHARENFS, "sharenfs", "off", PROP_INHERIT, 288 ZFS_TYPE_FILESYSTEM, "on | off | share(1M) options", "SHARENFS"); 289 register_string(ZFS_PROP_TYPE, "type", NULL, PROP_READONLY, 290 ZFS_TYPE_DATASET, "filesystem | volume | snapshot", "TYPE"); 291 register_string(ZFS_PROP_SHARESMB, "sharesmb", "off", PROP_INHERIT, 292 ZFS_TYPE_FILESYSTEM, "on | off | sharemgr(1M) options", "SHARESMB"); 293 register_string(ZFS_PROP_MLSLABEL, "mlslabel", ZFS_MLSLABEL_DEFAULT, 294 PROP_INHERIT, ZFS_TYPE_DATASET, "<sensitivity label>", "MLSLABEL"); 295 296 /* readonly number properties */ 297 register_number(ZFS_PROP_USED, "used", 0, PROP_READONLY, 298 ZFS_TYPE_DATASET, "<size>", "USED"); 299 register_number(ZFS_PROP_AVAILABLE, "available", 0, PROP_READONLY, 300 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "<size>", "AVAIL"); 301 register_number(ZFS_PROP_REFERENCED, "referenced", 0, PROP_READONLY, 302 ZFS_TYPE_DATASET, "<size>", "REFER"); 303 register_number(ZFS_PROP_COMPRESSRATIO, "compressratio", 0, 304 PROP_READONLY, ZFS_TYPE_DATASET, 305 "<1.00x or higher if compressed>", "RATIO"); 306 register_number(ZFS_PROP_VOLBLOCKSIZE, "volblocksize", 307 ZVOL_DEFAULT_BLOCKSIZE, PROP_ONETIME, 308 ZFS_TYPE_VOLUME, "512 to 128k, power of 2", "VOLBLOCK"); 309 register_number(ZFS_PROP_USEDSNAP, "usedbysnapshots", 0, PROP_READONLY, 310 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "<size>", "USEDSNAP"); 311 register_number(ZFS_PROP_USEDDS, "usedbydataset", 0, PROP_READONLY, 312 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "<size>", "USEDDS"); 313 register_number(ZFS_PROP_USEDCHILD, "usedbychildren", 0, PROP_READONLY, 314 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "<size>", "USEDCHILD"); 315 register_number(ZFS_PROP_USEDREFRESERV, "usedbyrefreservation", 0, 316 PROP_READONLY, 317 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "<size>", "USEDREFRESERV"); 318 register_number(ZFS_PROP_USERREFS, "userrefs", 0, PROP_READONLY, 319 ZFS_TYPE_SNAPSHOT, "<count>", "USERREFS"); 320 321 /* default number properties */ 322 register_number(ZFS_PROP_QUOTA, "quota", 0, PROP_DEFAULT, 323 ZFS_TYPE_FILESYSTEM, "<size> | none", "QUOTA"); 324 register_number(ZFS_PROP_RESERVATION, "reservation", 0, PROP_DEFAULT, 325 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "<size> | none", "RESERV"); 326 register_number(ZFS_PROP_VOLSIZE, "volsize", 0, PROP_DEFAULT, 327 ZFS_TYPE_VOLUME, "<size>", "VOLSIZE"); 328 register_number(ZFS_PROP_REFQUOTA, "refquota", 0, PROP_DEFAULT, 329 ZFS_TYPE_FILESYSTEM, "<size> | none", "REFQUOTA"); 330 register_number(ZFS_PROP_REFRESERVATION, "refreservation", 0, 331 PROP_DEFAULT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, 332 "<size> | none", "REFRESERV"); 333 334 /* inherit number properties */ 335 register_number(ZFS_PROP_RECORDSIZE, "recordsize", SPA_MAXBLOCKSIZE, 336 PROP_INHERIT, 337 ZFS_TYPE_FILESYSTEM, "512 to 128k, power of 2", "RECSIZE"); 338 339 /* hidden properties */ 340 register_hidden(ZFS_PROP_CREATETXG, "createtxg", PROP_TYPE_NUMBER, 341 PROP_READONLY, ZFS_TYPE_DATASET, "CREATETXG"); 342 register_hidden(ZFS_PROP_NUMCLONES, "numclones", PROP_TYPE_NUMBER, 343 PROP_READONLY, ZFS_TYPE_SNAPSHOT, "NUMCLONES"); 344 register_hidden(ZFS_PROP_NAME, "name", PROP_TYPE_STRING, 345 PROP_READONLY, ZFS_TYPE_DATASET, "NAME"); 346 register_hidden(ZFS_PROP_ISCSIOPTIONS, "iscsioptions", PROP_TYPE_STRING, 347 PROP_READONLY, ZFS_TYPE_VOLUME, "ISCSIOPTIONS"); 348 register_hidden(ZFS_PROP_STMF_SHAREINFO, "stmf_sbd_lu", 349 PROP_TYPE_STRING, PROP_INHERIT, ZFS_TYPE_VOLUME, 350 "STMF_SBD_LU"); 351 register_hidden(ZFS_PROP_GUID, "guid", PROP_TYPE_NUMBER, PROP_READONLY, 352 ZFS_TYPE_DATASET, "GUID"); 353 register_hidden(ZFS_PROP_USERACCOUNTING, "useraccounting", 354 PROP_TYPE_NUMBER, PROP_READONLY, ZFS_TYPE_DATASET, 355 "USERACCOUNTING"); 356 register_hidden(ZFS_PROP_UNIQUE, "unique", PROP_TYPE_NUMBER, 357 PROP_READONLY, ZFS_TYPE_DATASET, "UNIQUE"); 358 register_hidden(ZFS_PROP_OBJSETID, "objsetid", PROP_TYPE_NUMBER, 359 PROP_READONLY, ZFS_TYPE_DATASET, "OBJSETID"); 360 361 /* oddball properties */ 362 register_impl(ZFS_PROP_CREATION, "creation", PROP_TYPE_NUMBER, 0, NULL, 363 PROP_READONLY, ZFS_TYPE_DATASET, 364 "<date>", "CREATION", B_FALSE, B_TRUE, NULL); 365 } 366 367 boolean_t 368 zfs_prop_delegatable(zfs_prop_t prop) 369 { 370 zprop_desc_t *pd = &zfs_prop_table[prop]; 371 372 /* The mlslabel property is never delegatable. */ 373 if (prop == ZFS_PROP_MLSLABEL) 374 return (B_FALSE); 375 376 return (pd->pd_attr != PROP_READONLY); 377 } 378 379 /* 380 * Given a zfs dataset property name, returns the corresponding property ID. 381 */ 382 zfs_prop_t 383 zfs_name_to_prop(const char *propname) 384 { 385 return (zprop_name_to_prop(propname, ZFS_TYPE_DATASET)); 386 } 387 388 /* 389 * For user property names, we allow all lowercase alphanumeric characters, plus 390 * a few useful punctuation characters. 391 */ 392 static int 393 valid_char(char c) 394 { 395 return ((c >= 'a' && c <= 'z') || 396 (c >= '0' && c <= '9') || 397 c == '-' || c == '_' || c == '.' || c == ':'); 398 } 399 400 /* 401 * Returns true if this is a valid user-defined property (one with a ':'). 402 */ 403 boolean_t 404 zfs_prop_user(const char *name) 405 { 406 int i; 407 char c; 408 boolean_t foundsep = B_FALSE; 409 410 for (i = 0; i < strlen(name); i++) { 411 c = name[i]; 412 if (!valid_char(c)) 413 return (B_FALSE); 414 if (c == ':') 415 foundsep = B_TRUE; 416 } 417 418 if (!foundsep) 419 return (B_FALSE); 420 421 return (B_TRUE); 422 } 423 424 /* 425 * Returns true if this is a valid userspace-type property (one with a '@'). 426 * Note that after the @, any character is valid (eg, another @, for SID 427 * user@domain). 428 */ 429 boolean_t 430 zfs_prop_userquota(const char *name) 431 { 432 zfs_userquota_prop_t prop; 433 434 for (prop = 0; prop < ZFS_NUM_USERQUOTA_PROPS; prop++) { 435 if (strncmp(name, zfs_userquota_prop_prefixes[prop], 436 strlen(zfs_userquota_prop_prefixes[prop])) == 0) { 437 return (B_TRUE); 438 } 439 } 440 441 return (B_FALSE); 442 } 443 444 /* 445 * Tables of index types, plus functions to convert between the user view 446 * (strings) and internal representation (uint64_t). 447 */ 448 int 449 zfs_prop_string_to_index(zfs_prop_t prop, const char *string, uint64_t *index) 450 { 451 return (zprop_string_to_index(prop, string, index, ZFS_TYPE_DATASET)); 452 } 453 454 int 455 zfs_prop_index_to_string(zfs_prop_t prop, uint64_t index, const char **string) 456 { 457 return (zprop_index_to_string(prop, index, string, ZFS_TYPE_DATASET)); 458 } 459 460 uint64_t 461 zfs_prop_random_value(zfs_prop_t prop, uint64_t seed) 462 { 463 return (zprop_random_value(prop, seed, ZFS_TYPE_DATASET)); 464 } 465 466 /* 467 * Returns TRUE if the property applies to any of the given dataset types. 468 */ 469 boolean_t 470 zfs_prop_valid_for_type(int prop, zfs_type_t types) 471 { 472 return (zprop_valid_for_type(prop, types)); 473 } 474 475 zprop_type_t 476 zfs_prop_get_type(zfs_prop_t prop) 477 { 478 return (zfs_prop_table[prop].pd_proptype); 479 } 480 481 /* 482 * Returns TRUE if the property is readonly. 483 */ 484 boolean_t 485 zfs_prop_readonly(zfs_prop_t prop) 486 { 487 return (zfs_prop_table[prop].pd_attr == PROP_READONLY || 488 zfs_prop_table[prop].pd_attr == PROP_ONETIME); 489 } 490 491 /* 492 * Returns TRUE if the property is only allowed to be set once. 493 */ 494 boolean_t 495 zfs_prop_setonce(zfs_prop_t prop) 496 { 497 return (zfs_prop_table[prop].pd_attr == PROP_ONETIME); 498 } 499 500 const char * 501 zfs_prop_default_string(zfs_prop_t prop) 502 { 503 return (zfs_prop_table[prop].pd_strdefault); 504 } 505 506 uint64_t 507 zfs_prop_default_numeric(zfs_prop_t prop) 508 { 509 return (zfs_prop_table[prop].pd_numdefault); 510 } 511 512 /* 513 * Given a dataset property ID, returns the corresponding name. 514 * Assuming the zfs dataset property ID is valid. 515 */ 516 const char * 517 zfs_prop_to_name(zfs_prop_t prop) 518 { 519 return (zfs_prop_table[prop].pd_name); 520 } 521 522 /* 523 * Returns TRUE if the property is inheritable. 524 */ 525 boolean_t 526 zfs_prop_inheritable(zfs_prop_t prop) 527 { 528 return (zfs_prop_table[prop].pd_attr == PROP_INHERIT || 529 zfs_prop_table[prop].pd_attr == PROP_ONETIME); 530 } 531 532 #ifndef _KERNEL 533 534 /* 535 * Returns a string describing the set of acceptable values for the given 536 * zfs property, or NULL if it cannot be set. 537 */ 538 const char * 539 zfs_prop_values(zfs_prop_t prop) 540 { 541 return (zfs_prop_table[prop].pd_values); 542 } 543 544 /* 545 * Returns TRUE if this property is a string type. Note that index types 546 * (compression, checksum) are treated as strings in userland, even though they 547 * are stored numerically on disk. 548 */ 549 int 550 zfs_prop_is_string(zfs_prop_t prop) 551 { 552 return (zfs_prop_table[prop].pd_proptype == PROP_TYPE_STRING || 553 zfs_prop_table[prop].pd_proptype == PROP_TYPE_INDEX); 554 } 555 556 /* 557 * Returns the column header for the given property. Used only in 558 * 'zfs list -o', but centralized here with the other property information. 559 */ 560 const char * 561 zfs_prop_column_name(zfs_prop_t prop) 562 { 563 return (zfs_prop_table[prop].pd_colname); 564 } 565 566 /* 567 * Returns whether the given property should be displayed right-justified for 568 * 'zfs list'. 569 */ 570 boolean_t 571 zfs_prop_align_right(zfs_prop_t prop) 572 { 573 return (zfs_prop_table[prop].pd_rightalign); 574 } 575 576 #endif 577