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) 2011, 2014 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 * Copyright (c) 2014 Integros [integros.com] 27 */ 28 29 /* Portions Copyright 2010 Robert Milkowski */ 30 31 #include <sys/zio.h> 32 #include <sys/spa.h> 33 #include <sys/u8_textprep.h> 34 #include <sys/zfs_acl.h> 35 #include <sys/zfs_ioctl.h> 36 #include <sys/zfs_znode.h> 37 38 #include "zfs_prop.h" 39 #include "zfs_deleg.h" 40 41 #if defined(_KERNEL) 42 #include <sys/systm.h> 43 #else 44 #include <stdlib.h> 45 #include <string.h> 46 #include <ctype.h> 47 #endif 48 49 static zprop_desc_t zfs_prop_table[ZFS_NUM_PROPS]; 50 51 /* Note this is indexed by zfs_userquota_prop_t, keep the order the same */ 52 const char *zfs_userquota_prop_prefixes[] = { 53 "userused@", 54 "userquota@", 55 "groupused@", 56 "groupquota@" 57 }; 58 59 zprop_desc_t * 60 zfs_prop_get_table(void) 61 { 62 return (zfs_prop_table); 63 } 64 65 void 66 zfs_prop_init(void) 67 { 68 static zprop_index_t checksum_table[] = { 69 { "on", ZIO_CHECKSUM_ON }, 70 { "off", ZIO_CHECKSUM_OFF }, 71 { "fletcher2", ZIO_CHECKSUM_FLETCHER_2 }, 72 { "fletcher4", ZIO_CHECKSUM_FLETCHER_4 }, 73 { "sha256", ZIO_CHECKSUM_SHA256 }, 74 { "noparity", ZIO_CHECKSUM_NOPARITY }, 75 { "sha512", ZIO_CHECKSUM_SHA512 }, 76 { "skein", ZIO_CHECKSUM_SKEIN }, 77 { "edonr", ZIO_CHECKSUM_EDONR }, 78 { NULL } 79 }; 80 81 static zprop_index_t dedup_table[] = { 82 { "on", ZIO_CHECKSUM_ON }, 83 { "off", ZIO_CHECKSUM_OFF }, 84 { "verify", ZIO_CHECKSUM_ON | ZIO_CHECKSUM_VERIFY }, 85 { "sha256", ZIO_CHECKSUM_SHA256 }, 86 { "sha256,verify", 87 ZIO_CHECKSUM_SHA256 | ZIO_CHECKSUM_VERIFY }, 88 { "sha512", ZIO_CHECKSUM_SHA512 }, 89 { "sha512,verify", 90 ZIO_CHECKSUM_SHA512 | ZIO_CHECKSUM_VERIFY }, 91 { "skein", ZIO_CHECKSUM_SKEIN }, 92 { "skein,verify", 93 ZIO_CHECKSUM_SKEIN | ZIO_CHECKSUM_VERIFY }, 94 { "edonr,verify", 95 ZIO_CHECKSUM_EDONR | ZIO_CHECKSUM_VERIFY }, 96 { NULL } 97 }; 98 99 static zprop_index_t compress_table[] = { 100 { "on", ZIO_COMPRESS_ON }, 101 { "off", ZIO_COMPRESS_OFF }, 102 { "lzjb", ZIO_COMPRESS_LZJB }, 103 { "gzip", ZIO_COMPRESS_GZIP_6 }, /* gzip default */ 104 { "gzip-1", ZIO_COMPRESS_GZIP_1 }, 105 { "gzip-2", ZIO_COMPRESS_GZIP_2 }, 106 { "gzip-3", ZIO_COMPRESS_GZIP_3 }, 107 { "gzip-4", ZIO_COMPRESS_GZIP_4 }, 108 { "gzip-5", ZIO_COMPRESS_GZIP_5 }, 109 { "gzip-6", ZIO_COMPRESS_GZIP_6 }, 110 { "gzip-7", ZIO_COMPRESS_GZIP_7 }, 111 { "gzip-8", ZIO_COMPRESS_GZIP_8 }, 112 { "gzip-9", ZIO_COMPRESS_GZIP_9 }, 113 { "zle", ZIO_COMPRESS_ZLE }, 114 { "lz4", ZIO_COMPRESS_LZ4 }, 115 { NULL } 116 }; 117 118 static zprop_index_t snapdir_table[] = { 119 { "hidden", ZFS_SNAPDIR_HIDDEN }, 120 { "visible", ZFS_SNAPDIR_VISIBLE }, 121 { NULL } 122 }; 123 124 static zprop_index_t acl_mode_table[] = { 125 { "discard", ZFS_ACL_DISCARD }, 126 { "groupmask", ZFS_ACL_GROUPMASK }, 127 { "passthrough", ZFS_ACL_PASSTHROUGH }, 128 { "restricted", ZFS_ACL_RESTRICTED }, 129 { NULL } 130 }; 131 132 static zprop_index_t acl_inherit_table[] = { 133 { "discard", ZFS_ACL_DISCARD }, 134 { "noallow", ZFS_ACL_NOALLOW }, 135 { "restricted", ZFS_ACL_RESTRICTED }, 136 { "passthrough", ZFS_ACL_PASSTHROUGH }, 137 { "secure", ZFS_ACL_RESTRICTED }, /* bkwrd compatability */ 138 { "passthrough-x", ZFS_ACL_PASSTHROUGH_X }, 139 { NULL } 140 }; 141 142 static zprop_index_t case_table[] = { 143 { "sensitive", ZFS_CASE_SENSITIVE }, 144 { "insensitive", ZFS_CASE_INSENSITIVE }, 145 { "mixed", ZFS_CASE_MIXED }, 146 { NULL } 147 }; 148 149 static zprop_index_t copies_table[] = { 150 { "1", 1 }, 151 { "2", 2 }, 152 { "3", 3 }, 153 { NULL } 154 }; 155 156 /* 157 * Use the unique flags we have to send to u8_strcmp() and/or 158 * u8_textprep() to represent the various normalization property 159 * values. 160 */ 161 static zprop_index_t normalize_table[] = { 162 { "none", 0 }, 163 { "formD", U8_TEXTPREP_NFD }, 164 { "formKC", U8_TEXTPREP_NFKC }, 165 { "formC", U8_TEXTPREP_NFC }, 166 { "formKD", U8_TEXTPREP_NFKD }, 167 { NULL } 168 }; 169 170 static zprop_index_t version_table[] = { 171 { "1", 1 }, 172 { "2", 2 }, 173 { "3", 3 }, 174 { "4", 4 }, 175 { "5", 5 }, 176 { "current", ZPL_VERSION }, 177 { NULL } 178 }; 179 180 static zprop_index_t boolean_table[] = { 181 { "off", 0 }, 182 { "on", 1 }, 183 { NULL } 184 }; 185 186 static zprop_index_t logbias_table[] = { 187 { "latency", ZFS_LOGBIAS_LATENCY }, 188 { "throughput", ZFS_LOGBIAS_THROUGHPUT }, 189 { NULL } 190 }; 191 192 static zprop_index_t canmount_table[] = { 193 { "off", ZFS_CANMOUNT_OFF }, 194 { "on", ZFS_CANMOUNT_ON }, 195 { "noauto", ZFS_CANMOUNT_NOAUTO }, 196 { NULL } 197 }; 198 199 static zprop_index_t cache_table[] = { 200 { "none", ZFS_CACHE_NONE }, 201 { "metadata", ZFS_CACHE_METADATA }, 202 { "all", ZFS_CACHE_ALL }, 203 { NULL } 204 }; 205 206 static zprop_index_t sync_table[] = { 207 { "standard", ZFS_SYNC_STANDARD }, 208 { "always", ZFS_SYNC_ALWAYS }, 209 { "disabled", ZFS_SYNC_DISABLED }, 210 { NULL } 211 }; 212 213 static zprop_index_t redundant_metadata_table[] = { 214 { "all", ZFS_REDUNDANT_METADATA_ALL }, 215 { "most", ZFS_REDUNDANT_METADATA_MOST }, 216 { NULL } 217 }; 218 219 /* inherit index properties */ 220 zprop_register_index(ZFS_PROP_REDUNDANT_METADATA, "redundant_metadata", 221 ZFS_REDUNDANT_METADATA_ALL, 222 PROP_INHERIT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, 223 "all | most", "REDUND_MD", 224 redundant_metadata_table); 225 zprop_register_index(ZFS_PROP_SYNC, "sync", ZFS_SYNC_STANDARD, 226 PROP_INHERIT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, 227 "standard | always | disabled", "SYNC", 228 sync_table); 229 zprop_register_index(ZFS_PROP_CHECKSUM, "checksum", 230 ZIO_CHECKSUM_DEFAULT, PROP_INHERIT, ZFS_TYPE_FILESYSTEM | 231 ZFS_TYPE_VOLUME, 232 "on | off | fletcher2 | fletcher4 | sha256 | sha512 | " 233 "skein | edonr", "CHECKSUM", checksum_table); 234 zprop_register_index(ZFS_PROP_DEDUP, "dedup", ZIO_CHECKSUM_OFF, 235 PROP_INHERIT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, 236 "on | off | verify | sha256[,verify], sha512[,verify], " 237 "skein[,verify], edonr,verify", "DEDUP", dedup_table); 238 zprop_register_index(ZFS_PROP_COMPRESSION, "compression", 239 ZIO_COMPRESS_DEFAULT, PROP_INHERIT, 240 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, 241 "on | off | lzjb | gzip | gzip-[1-9] | zle | lz4", 242 "COMPRESS", compress_table); 243 zprop_register_index(ZFS_PROP_SNAPDIR, "snapdir", ZFS_SNAPDIR_HIDDEN, 244 PROP_INHERIT, ZFS_TYPE_FILESYSTEM, 245 "hidden | visible", "SNAPDIR", snapdir_table); 246 zprop_register_index(ZFS_PROP_ACLMODE, "aclmode", ZFS_ACL_DISCARD, 247 PROP_INHERIT, ZFS_TYPE_FILESYSTEM, 248 "discard | groupmask | passthrough | restricted", "ACLMODE", 249 acl_mode_table); 250 zprop_register_index(ZFS_PROP_ACLINHERIT, "aclinherit", 251 ZFS_ACL_RESTRICTED, PROP_INHERIT, ZFS_TYPE_FILESYSTEM, 252 "discard | noallow | restricted | passthrough | passthrough-x", 253 "ACLINHERIT", acl_inherit_table); 254 zprop_register_index(ZFS_PROP_COPIES, "copies", 1, PROP_INHERIT, 255 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, 256 "1 | 2 | 3", "COPIES", copies_table); 257 zprop_register_index(ZFS_PROP_PRIMARYCACHE, "primarycache", 258 ZFS_CACHE_ALL, PROP_INHERIT, 259 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT | ZFS_TYPE_VOLUME, 260 "all | none | metadata", "PRIMARYCACHE", cache_table); 261 zprop_register_index(ZFS_PROP_SECONDARYCACHE, "secondarycache", 262 ZFS_CACHE_ALL, PROP_INHERIT, 263 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT | ZFS_TYPE_VOLUME, 264 "all | none | metadata", "SECONDARYCACHE", cache_table); 265 zprop_register_index(ZFS_PROP_LOGBIAS, "logbias", ZFS_LOGBIAS_LATENCY, 266 PROP_INHERIT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, 267 "latency | throughput", "LOGBIAS", logbias_table); 268 269 /* inherit index (boolean) properties */ 270 zprop_register_index(ZFS_PROP_ATIME, "atime", 1, PROP_INHERIT, 271 ZFS_TYPE_FILESYSTEM, "on | off", "ATIME", boolean_table); 272 zprop_register_index(ZFS_PROP_DEVICES, "devices", 1, PROP_INHERIT, 273 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT, "on | off", "DEVICES", 274 boolean_table); 275 zprop_register_index(ZFS_PROP_EXEC, "exec", 1, PROP_INHERIT, 276 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT, "on | off", "EXEC", 277 boolean_table); 278 zprop_register_index(ZFS_PROP_FOLLOW, "follow", 1, PROP_INHERIT, 279 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT, "on | off", "FOLLOW", 280 boolean_table); 281 zprop_register_index(ZFS_PROP_SETUID, "setuid", 1, PROP_INHERIT, 282 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT, "on | off", "SETUID", 283 boolean_table); 284 zprop_register_index(ZFS_PROP_READONLY, "readonly", 0, PROP_INHERIT, 285 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "on | off", "RDONLY", 286 boolean_table); 287 zprop_register_index(ZFS_PROP_ZONED, "zoned", 0, PROP_INHERIT, 288 ZFS_TYPE_FILESYSTEM, "on | off", "ZONED", boolean_table); 289 zprop_register_index(ZFS_PROP_XATTR, "xattr", 1, PROP_INHERIT, 290 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT, "on | off", "XATTR", 291 boolean_table); 292 zprop_register_index(ZFS_PROP_VSCAN, "vscan", 0, PROP_INHERIT, 293 ZFS_TYPE_FILESYSTEM, "on | off", "VSCAN", 294 boolean_table); 295 zprop_register_index(ZFS_PROP_NBMAND, "nbmand", 0, PROP_INHERIT, 296 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT, "on | off", "NBMAND", 297 boolean_table); 298 299 /* default index properties */ 300 zprop_register_index(ZFS_PROP_VERSION, "version", 0, PROP_DEFAULT, 301 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT, 302 "1 | 2 | 3 | 4 | 5 | current", "VERSION", version_table); 303 zprop_register_index(ZFS_PROP_CANMOUNT, "canmount", ZFS_CANMOUNT_ON, 304 PROP_DEFAULT, ZFS_TYPE_FILESYSTEM, "on | off | noauto", 305 "CANMOUNT", canmount_table); 306 307 /* readonly index (boolean) properties */ 308 zprop_register_index(ZFS_PROP_MOUNTED, "mounted", 0, PROP_READONLY, 309 ZFS_TYPE_FILESYSTEM, "yes | no", "MOUNTED", boolean_table); 310 zprop_register_index(ZFS_PROP_DEFER_DESTROY, "defer_destroy", 0, 311 PROP_READONLY, ZFS_TYPE_SNAPSHOT, "yes | no", "DEFER_DESTROY", 312 boolean_table); 313 314 /* set once index properties */ 315 zprop_register_index(ZFS_PROP_NORMALIZE, "normalization", 0, 316 PROP_ONETIME, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT, 317 "none | formC | formD | formKC | formKD", "NORMALIZATION", 318 normalize_table); 319 zprop_register_index(ZFS_PROP_CASE, "casesensitivity", 320 ZFS_CASE_SENSITIVE, PROP_ONETIME, ZFS_TYPE_FILESYSTEM | 321 ZFS_TYPE_SNAPSHOT, 322 "sensitive | insensitive | mixed", "CASE", case_table); 323 324 /* set once index (boolean) properties */ 325 zprop_register_index(ZFS_PROP_UTF8ONLY, "utf8only", 0, PROP_ONETIME, 326 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT, 327 "on | off", "UTF8ONLY", boolean_table); 328 329 /* string properties */ 330 zprop_register_string(ZFS_PROP_ORIGIN, "origin", NULL, PROP_READONLY, 331 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "<snapshot>", "ORIGIN"); 332 zprop_register_string(ZFS_PROP_CLONES, "clones", NULL, PROP_READONLY, 333 ZFS_TYPE_SNAPSHOT, "<dataset>[,...]", "CLONES"); 334 zprop_register_string(ZFS_PROP_MOUNTPOINT, "mountpoint", "/", 335 PROP_INHERIT, ZFS_TYPE_FILESYSTEM, "<path> | legacy | none", 336 "MOUNTPOINT"); 337 zprop_register_string(ZFS_PROP_SHARENFS, "sharenfs", "off", 338 PROP_INHERIT, ZFS_TYPE_FILESYSTEM, "on | off | share(1M) options", 339 "SHARENFS"); 340 zprop_register_string(ZFS_PROP_TYPE, "type", NULL, PROP_READONLY, 341 ZFS_TYPE_DATASET | ZFS_TYPE_BOOKMARK, 342 "filesystem | volume | snapshot | bookmark", "TYPE"); 343 zprop_register_string(ZFS_PROP_SHARESMB, "sharesmb", "off", 344 PROP_INHERIT, ZFS_TYPE_FILESYSTEM, 345 "on | off | sharemgr(1M) options", "SHARESMB"); 346 zprop_register_string(ZFS_PROP_MLSLABEL, "mlslabel", 347 ZFS_MLSLABEL_DEFAULT, PROP_INHERIT, ZFS_TYPE_DATASET, 348 "<sensitivity label>", "MLSLABEL"); 349 zprop_register_string(ZFS_PROP_RECEIVE_RESUME_TOKEN, 350 "receive_resume_token", 351 NULL, PROP_READONLY, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, 352 "<string token>", "RESUMETOK"); 353 354 /* readonly number properties */ 355 zprop_register_number(ZFS_PROP_USED, "used", 0, PROP_READONLY, 356 ZFS_TYPE_DATASET, "<size>", "USED"); 357 zprop_register_number(ZFS_PROP_AVAILABLE, "available", 0, PROP_READONLY, 358 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "<size>", "AVAIL"); 359 zprop_register_number(ZFS_PROP_REFERENCED, "referenced", 0, 360 PROP_READONLY, ZFS_TYPE_DATASET, "<size>", "REFER"); 361 zprop_register_number(ZFS_PROP_COMPRESSRATIO, "compressratio", 0, 362 PROP_READONLY, ZFS_TYPE_DATASET, 363 "<1.00x or higher if compressed>", "RATIO"); 364 zprop_register_number(ZFS_PROP_REFRATIO, "refcompressratio", 0, 365 PROP_READONLY, ZFS_TYPE_DATASET, 366 "<1.00x or higher if compressed>", "REFRATIO"); 367 zprop_register_number(ZFS_PROP_VOLBLOCKSIZE, "volblocksize", 368 ZVOL_DEFAULT_BLOCKSIZE, PROP_ONETIME, 369 ZFS_TYPE_VOLUME, "512 to 128k, power of 2", "VOLBLOCK"); 370 zprop_register_number(ZFS_PROP_USEDSNAP, "usedbysnapshots", 0, 371 PROP_READONLY, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "<size>", 372 "USEDSNAP"); 373 zprop_register_number(ZFS_PROP_USEDDS, "usedbydataset", 0, 374 PROP_READONLY, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "<size>", 375 "USEDDS"); 376 zprop_register_number(ZFS_PROP_USEDCHILD, "usedbychildren", 0, 377 PROP_READONLY, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "<size>", 378 "USEDCHILD"); 379 zprop_register_number(ZFS_PROP_USEDREFRESERV, "usedbyrefreservation", 0, 380 PROP_READONLY, 381 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "<size>", "USEDREFRESERV"); 382 zprop_register_number(ZFS_PROP_USERREFS, "userrefs", 0, PROP_READONLY, 383 ZFS_TYPE_SNAPSHOT, "<count>", "USERREFS"); 384 zprop_register_number(ZFS_PROP_WRITTEN, "written", 0, PROP_READONLY, 385 ZFS_TYPE_DATASET, "<size>", "WRITTEN"); 386 zprop_register_number(ZFS_PROP_LOGICALUSED, "logicalused", 0, 387 PROP_READONLY, ZFS_TYPE_DATASET, "<size>", "LUSED"); 388 zprop_register_number(ZFS_PROP_LOGICALREFERENCED, "logicalreferenced", 389 0, PROP_READONLY, ZFS_TYPE_DATASET, "<size>", "LREFER"); 390 391 /* default number properties */ 392 zprop_register_number(ZFS_PROP_QUOTA, "quota", 0, PROP_DEFAULT, 393 ZFS_TYPE_FILESYSTEM, "<size> | none", "QUOTA"); 394 zprop_register_number(ZFS_PROP_RESERVATION, "reservation", 0, 395 PROP_DEFAULT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, 396 "<size> | none", "RESERV"); 397 zprop_register_number(ZFS_PROP_VOLSIZE, "volsize", 0, PROP_DEFAULT, 398 ZFS_TYPE_VOLUME, "<size>", "VOLSIZE"); 399 zprop_register_number(ZFS_PROP_REFQUOTA, "refquota", 0, PROP_DEFAULT, 400 ZFS_TYPE_FILESYSTEM, "<size> | none", "REFQUOTA"); 401 zprop_register_number(ZFS_PROP_REFRESERVATION, "refreservation", 0, 402 PROP_DEFAULT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, 403 "<size> | none", "REFRESERV"); 404 zprop_register_number(ZFS_PROP_FILESYSTEM_LIMIT, "filesystem_limit", 405 UINT64_MAX, PROP_DEFAULT, ZFS_TYPE_FILESYSTEM, 406 "<count> | none", "FSLIMIT"); 407 zprop_register_number(ZFS_PROP_SNAPSHOT_LIMIT, "snapshot_limit", 408 UINT64_MAX, PROP_DEFAULT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, 409 "<count> | none", "SSLIMIT"); 410 zprop_register_number(ZFS_PROP_FILESYSTEM_COUNT, "filesystem_count", 411 UINT64_MAX, PROP_DEFAULT, ZFS_TYPE_FILESYSTEM, 412 "<count>", "FSCOUNT"); 413 zprop_register_number(ZFS_PROP_SNAPSHOT_COUNT, "snapshot_count", 414 UINT64_MAX, PROP_DEFAULT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, 415 "<count>", "SSCOUNT"); 416 417 /* inherit number properties */ 418 zprop_register_number(ZFS_PROP_RECORDSIZE, "recordsize", 419 SPA_OLD_MAXBLOCKSIZE, PROP_INHERIT, 420 ZFS_TYPE_FILESYSTEM, "512 to 1M, power of 2", "RECSIZE"); 421 422 /* hidden properties */ 423 zprop_register_hidden(ZFS_PROP_CREATETXG, "createtxg", PROP_TYPE_NUMBER, 424 PROP_READONLY, ZFS_TYPE_DATASET | ZFS_TYPE_BOOKMARK, "CREATETXG"); 425 zprop_register_hidden(ZFS_PROP_NUMCLONES, "numclones", PROP_TYPE_NUMBER, 426 PROP_READONLY, ZFS_TYPE_SNAPSHOT, "NUMCLONES"); 427 zprop_register_hidden(ZFS_PROP_NAME, "name", PROP_TYPE_STRING, 428 PROP_READONLY, ZFS_TYPE_DATASET | ZFS_TYPE_BOOKMARK, "NAME"); 429 zprop_register_hidden(ZFS_PROP_ISCSIOPTIONS, "iscsioptions", 430 PROP_TYPE_STRING, PROP_INHERIT, ZFS_TYPE_VOLUME, "ISCSIOPTIONS"); 431 zprop_register_hidden(ZFS_PROP_STMF_SHAREINFO, "stmf_sbd_lu", 432 PROP_TYPE_STRING, PROP_INHERIT, ZFS_TYPE_VOLUME, 433 "STMF_SBD_LU"); 434 zprop_register_hidden(ZFS_PROP_GUID, "guid", PROP_TYPE_NUMBER, 435 PROP_READONLY, ZFS_TYPE_DATASET | ZFS_TYPE_BOOKMARK, "GUID"); 436 zprop_register_hidden(ZFS_PROP_USERACCOUNTING, "useraccounting", 437 PROP_TYPE_NUMBER, PROP_READONLY, ZFS_TYPE_DATASET, 438 "USERACCOUNTING"); 439 zprop_register_hidden(ZFS_PROP_UNIQUE, "unique", PROP_TYPE_NUMBER, 440 PROP_READONLY, ZFS_TYPE_DATASET, "UNIQUE"); 441 zprop_register_hidden(ZFS_PROP_OBJSETID, "objsetid", PROP_TYPE_NUMBER, 442 PROP_READONLY, ZFS_TYPE_DATASET, "OBJSETID"); 443 zprop_register_hidden(ZFS_PROP_INCONSISTENT, "inconsistent", 444 PROP_TYPE_NUMBER, PROP_READONLY, ZFS_TYPE_DATASET, "INCONSISTENT"); 445 zprop_register_hidden(ZFS_PROP_PREV_SNAP, "prevsnap", PROP_TYPE_STRING, 446 PROP_READONLY, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "PREVSNAP"); 447 448 /* oddball properties */ 449 zprop_register_impl(ZFS_PROP_CREATION, "creation", PROP_TYPE_NUMBER, 0, 450 NULL, PROP_READONLY, ZFS_TYPE_DATASET | ZFS_TYPE_BOOKMARK, 451 "<date>", "CREATION", B_FALSE, B_TRUE, NULL); 452 } 453 454 boolean_t 455 zfs_prop_delegatable(zfs_prop_t prop) 456 { 457 zprop_desc_t *pd = &zfs_prop_table[prop]; 458 459 /* The mlslabel property is never delegatable. */ 460 if (prop == ZFS_PROP_MLSLABEL) 461 return (B_FALSE); 462 463 return (pd->pd_attr != PROP_READONLY); 464 } 465 466 /* 467 * Given a zfs dataset property name, returns the corresponding property ID. 468 */ 469 zfs_prop_t 470 zfs_name_to_prop(const char *propname) 471 { 472 return (zprop_name_to_prop(propname, ZFS_TYPE_DATASET)); 473 } 474 475 /* 476 * For user property names, we allow all lowercase alphanumeric characters, plus 477 * a few useful punctuation characters. 478 */ 479 static int 480 valid_char(char c) 481 { 482 return ((c >= 'a' && c <= 'z') || 483 (c >= '0' && c <= '9') || 484 c == '-' || c == '_' || c == '.' || c == ':'); 485 } 486 487 /* 488 * Returns true if this is a valid user-defined property (one with a ':'). 489 */ 490 boolean_t 491 zfs_prop_user(const char *name) 492 { 493 int i; 494 char c; 495 boolean_t foundsep = B_FALSE; 496 497 for (i = 0; i < strlen(name); i++) { 498 c = name[i]; 499 if (!valid_char(c)) 500 return (B_FALSE); 501 if (c == ':') 502 foundsep = B_TRUE; 503 } 504 505 if (!foundsep) 506 return (B_FALSE); 507 508 return (B_TRUE); 509 } 510 511 /* 512 * Returns true if this is a valid userspace-type property (one with a '@'). 513 * Note that after the @, any character is valid (eg, another @, for SID 514 * user@domain). 515 */ 516 boolean_t 517 zfs_prop_userquota(const char *name) 518 { 519 zfs_userquota_prop_t prop; 520 521 for (prop = 0; prop < ZFS_NUM_USERQUOTA_PROPS; prop++) { 522 if (strncmp(name, zfs_userquota_prop_prefixes[prop], 523 strlen(zfs_userquota_prop_prefixes[prop])) == 0) { 524 return (B_TRUE); 525 } 526 } 527 528 return (B_FALSE); 529 } 530 531 /* 532 * Returns true if this is a valid written@ property. 533 * Note that after the @, any character is valid (eg, another @, for 534 * written@pool/fs@origin). 535 */ 536 boolean_t 537 zfs_prop_written(const char *name) 538 { 539 static const char *prefix = "written@"; 540 return (strncmp(name, prefix, strlen(prefix)) == 0); 541 } 542 543 /* 544 * Tables of index types, plus functions to convert between the user view 545 * (strings) and internal representation (uint64_t). 546 */ 547 int 548 zfs_prop_string_to_index(zfs_prop_t prop, const char *string, uint64_t *index) 549 { 550 return (zprop_string_to_index(prop, string, index, ZFS_TYPE_DATASET)); 551 } 552 553 int 554 zfs_prop_index_to_string(zfs_prop_t prop, uint64_t index, const char **string) 555 { 556 return (zprop_index_to_string(prop, index, string, ZFS_TYPE_DATASET)); 557 } 558 559 uint64_t 560 zfs_prop_random_value(zfs_prop_t prop, uint64_t seed) 561 { 562 return (zprop_random_value(prop, seed, ZFS_TYPE_DATASET)); 563 } 564 565 /* 566 * Returns TRUE if the property applies to any of the given dataset types. 567 */ 568 boolean_t 569 zfs_prop_valid_for_type(int prop, zfs_type_t types) 570 { 571 return (zprop_valid_for_type(prop, types)); 572 } 573 574 zprop_type_t 575 zfs_prop_get_type(zfs_prop_t prop) 576 { 577 return (zfs_prop_table[prop].pd_proptype); 578 } 579 580 /* 581 * Returns TRUE if the property is readonly. 582 */ 583 boolean_t 584 zfs_prop_readonly(zfs_prop_t prop) 585 { 586 return (zfs_prop_table[prop].pd_attr == PROP_READONLY || 587 zfs_prop_table[prop].pd_attr == PROP_ONETIME); 588 } 589 590 /* 591 * Returns TRUE if the property is only allowed to be set once. 592 */ 593 boolean_t 594 zfs_prop_setonce(zfs_prop_t prop) 595 { 596 return (zfs_prop_table[prop].pd_attr == PROP_ONETIME); 597 } 598 599 const char * 600 zfs_prop_default_string(zfs_prop_t prop) 601 { 602 return (zfs_prop_table[prop].pd_strdefault); 603 } 604 605 uint64_t 606 zfs_prop_default_numeric(zfs_prop_t prop) 607 { 608 return (zfs_prop_table[prop].pd_numdefault); 609 } 610 611 /* 612 * Given a dataset property ID, returns the corresponding name. 613 * Assuming the zfs dataset property ID is valid. 614 */ 615 const char * 616 zfs_prop_to_name(zfs_prop_t prop) 617 { 618 return (zfs_prop_table[prop].pd_name); 619 } 620 621 /* 622 * Returns TRUE if the property is inheritable. 623 */ 624 boolean_t 625 zfs_prop_inheritable(zfs_prop_t prop) 626 { 627 return (zfs_prop_table[prop].pd_attr == PROP_INHERIT || 628 zfs_prop_table[prop].pd_attr == PROP_ONETIME); 629 } 630 631 #ifndef _KERNEL 632 633 /* 634 * Returns a string describing the set of acceptable values for the given 635 * zfs property, or NULL if it cannot be set. 636 */ 637 const char * 638 zfs_prop_values(zfs_prop_t prop) 639 { 640 return (zfs_prop_table[prop].pd_values); 641 } 642 643 /* 644 * Returns TRUE if this property is a string type. Note that index types 645 * (compression, checksum) are treated as strings in userland, even though they 646 * are stored numerically on disk. 647 */ 648 int 649 zfs_prop_is_string(zfs_prop_t prop) 650 { 651 return (zfs_prop_table[prop].pd_proptype == PROP_TYPE_STRING || 652 zfs_prop_table[prop].pd_proptype == PROP_TYPE_INDEX); 653 } 654 655 /* 656 * Returns the column header for the given property. Used only in 657 * 'zfs list -o', but centralized here with the other property information. 658 */ 659 const char * 660 zfs_prop_column_name(zfs_prop_t prop) 661 { 662 return (zfs_prop_table[prop].pd_colname); 663 } 664 665 /* 666 * Returns whether the given property should be displayed right-justified for 667 * 'zfs list'. 668 */ 669 boolean_t 670 zfs_prop_align_right(zfs_prop_t prop) 671 { 672 return (zfs_prop_table[prop].pd_rightalign); 673 } 674 675 #endif 676