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