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 */ 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 static zprop_index_t redundant_metadata_table[] = { 202 { "all", ZFS_REDUNDANT_METADATA_ALL }, 203 { "most", ZFS_REDUNDANT_METADATA_MOST }, 204 { NULL } 205 }; 206 207 /* inherit index properties */ 208 zprop_register_index(ZFS_PROP_REDUNDANT_METADATA, "redundant_metadata", 209 ZFS_REDUNDANT_METADATA_ALL, 210 PROP_INHERIT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, 211 "all | most", "REDUND_MD", 212 redundant_metadata_table); 213 zprop_register_index(ZFS_PROP_SYNC, "sync", ZFS_SYNC_STANDARD, 214 PROP_INHERIT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, 215 "standard | always | disabled", "SYNC", 216 sync_table); 217 zprop_register_index(ZFS_PROP_CHECKSUM, "checksum", 218 ZIO_CHECKSUM_DEFAULT, PROP_INHERIT, ZFS_TYPE_FILESYSTEM | 219 ZFS_TYPE_VOLUME, 220 "on | off | fletcher2 | fletcher4 | sha256", "CHECKSUM", 221 checksum_table); 222 zprop_register_index(ZFS_PROP_DEDUP, "dedup", ZIO_CHECKSUM_OFF, 223 PROP_INHERIT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, 224 "on | off | verify | sha256[,verify]", "DEDUP", 225 dedup_table); 226 zprop_register_index(ZFS_PROP_COMPRESSION, "compression", 227 ZIO_COMPRESS_DEFAULT, PROP_INHERIT, 228 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, 229 "on | off | lzjb | gzip | gzip-[1-9] | zle | lz4", 230 "COMPRESS", compress_table); 231 zprop_register_index(ZFS_PROP_SNAPDIR, "snapdir", ZFS_SNAPDIR_HIDDEN, 232 PROP_INHERIT, ZFS_TYPE_FILESYSTEM, 233 "hidden | visible", "SNAPDIR", snapdir_table); 234 zprop_register_index(ZFS_PROP_ACLMODE, "aclmode", ZFS_ACL_DISCARD, 235 PROP_INHERIT, ZFS_TYPE_FILESYSTEM, 236 "discard | groupmask | passthrough | restricted", "ACLMODE", 237 acl_mode_table); 238 zprop_register_index(ZFS_PROP_ACLINHERIT, "aclinherit", 239 ZFS_ACL_RESTRICTED, PROP_INHERIT, ZFS_TYPE_FILESYSTEM, 240 "discard | noallow | restricted | passthrough | passthrough-x", 241 "ACLINHERIT", acl_inherit_table); 242 zprop_register_index(ZFS_PROP_COPIES, "copies", 1, PROP_INHERIT, 243 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, 244 "1 | 2 | 3", "COPIES", copies_table); 245 zprop_register_index(ZFS_PROP_PRIMARYCACHE, "primarycache", 246 ZFS_CACHE_ALL, PROP_INHERIT, 247 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT | ZFS_TYPE_VOLUME, 248 "all | none | metadata", "PRIMARYCACHE", cache_table); 249 zprop_register_index(ZFS_PROP_SECONDARYCACHE, "secondarycache", 250 ZFS_CACHE_ALL, PROP_INHERIT, 251 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT | ZFS_TYPE_VOLUME, 252 "all | none | metadata", "SECONDARYCACHE", cache_table); 253 zprop_register_index(ZFS_PROP_LOGBIAS, "logbias", ZFS_LOGBIAS_LATENCY, 254 PROP_INHERIT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, 255 "latency | throughput", "LOGBIAS", logbias_table); 256 257 /* inherit index (boolean) properties */ 258 zprop_register_index(ZFS_PROP_ATIME, "atime", 1, PROP_INHERIT, 259 ZFS_TYPE_FILESYSTEM, "on | off", "ATIME", boolean_table); 260 zprop_register_index(ZFS_PROP_DEVICES, "devices", 1, PROP_INHERIT, 261 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT, "on | off", "DEVICES", 262 boolean_table); 263 zprop_register_index(ZFS_PROP_EXEC, "exec", 1, PROP_INHERIT, 264 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT, "on | off", "EXEC", 265 boolean_table); 266 zprop_register_index(ZFS_PROP_SETUID, "setuid", 1, PROP_INHERIT, 267 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT, "on | off", "SETUID", 268 boolean_table); 269 zprop_register_index(ZFS_PROP_READONLY, "readonly", 0, PROP_INHERIT, 270 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "on | off", "RDONLY", 271 boolean_table); 272 zprop_register_index(ZFS_PROP_ZONED, "zoned", 0, PROP_INHERIT, 273 ZFS_TYPE_FILESYSTEM, "on | off", "ZONED", boolean_table); 274 zprop_register_index(ZFS_PROP_XATTR, "xattr", 1, PROP_INHERIT, 275 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT, "on | off", "XATTR", 276 boolean_table); 277 zprop_register_index(ZFS_PROP_VSCAN, "vscan", 0, PROP_INHERIT, 278 ZFS_TYPE_FILESYSTEM, "on | off", "VSCAN", 279 boolean_table); 280 zprop_register_index(ZFS_PROP_NBMAND, "nbmand", 0, PROP_INHERIT, 281 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT, "on | off", "NBMAND", 282 boolean_table); 283 284 /* default index properties */ 285 zprop_register_index(ZFS_PROP_VERSION, "version", 0, PROP_DEFAULT, 286 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT, 287 "1 | 2 | 3 | 4 | 5 | current", "VERSION", version_table); 288 zprop_register_index(ZFS_PROP_CANMOUNT, "canmount", ZFS_CANMOUNT_ON, 289 PROP_DEFAULT, ZFS_TYPE_FILESYSTEM, "on | off | noauto", 290 "CANMOUNT", canmount_table); 291 292 /* readonly index (boolean) properties */ 293 zprop_register_index(ZFS_PROP_MOUNTED, "mounted", 0, PROP_READONLY, 294 ZFS_TYPE_FILESYSTEM, "yes | no", "MOUNTED", boolean_table); 295 zprop_register_index(ZFS_PROP_DEFER_DESTROY, "defer_destroy", 0, 296 PROP_READONLY, ZFS_TYPE_SNAPSHOT, "yes | no", "DEFER_DESTROY", 297 boolean_table); 298 299 /* set once index properties */ 300 zprop_register_index(ZFS_PROP_NORMALIZE, "normalization", 0, 301 PROP_ONETIME, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT, 302 "none | formC | formD | formKC | formKD", "NORMALIZATION", 303 normalize_table); 304 zprop_register_index(ZFS_PROP_CASE, "casesensitivity", 305 ZFS_CASE_SENSITIVE, PROP_ONETIME, ZFS_TYPE_FILESYSTEM | 306 ZFS_TYPE_SNAPSHOT, 307 "sensitive | insensitive | mixed", "CASE", case_table); 308 309 /* set once index (boolean) properties */ 310 zprop_register_index(ZFS_PROP_UTF8ONLY, "utf8only", 0, PROP_ONETIME, 311 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT, 312 "on | off", "UTF8ONLY", boolean_table); 313 314 /* string properties */ 315 zprop_register_string(ZFS_PROP_ORIGIN, "origin", NULL, PROP_READONLY, 316 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "<snapshot>", "ORIGIN"); 317 zprop_register_string(ZFS_PROP_CLONES, "clones", NULL, PROP_READONLY, 318 ZFS_TYPE_SNAPSHOT, "<dataset>[,...]", "CLONES"); 319 zprop_register_string(ZFS_PROP_MOUNTPOINT, "mountpoint", "/", 320 PROP_INHERIT, ZFS_TYPE_FILESYSTEM, "<path> | legacy | none", 321 "MOUNTPOINT"); 322 zprop_register_string(ZFS_PROP_SHARENFS, "sharenfs", "off", 323 PROP_INHERIT, ZFS_TYPE_FILESYSTEM, "on | off | share(1M) options", 324 "SHARENFS"); 325 zprop_register_string(ZFS_PROP_TYPE, "type", NULL, PROP_READONLY, 326 ZFS_TYPE_DATASET | ZFS_TYPE_BOOKMARK, 327 "filesystem | volume | snapshot | bookmark", "TYPE"); 328 zprop_register_string(ZFS_PROP_SHARESMB, "sharesmb", "off", 329 PROP_INHERIT, ZFS_TYPE_FILESYSTEM, 330 "on | off | sharemgr(1M) options", "SHARESMB"); 331 zprop_register_string(ZFS_PROP_MLSLABEL, "mlslabel", 332 ZFS_MLSLABEL_DEFAULT, PROP_INHERIT, ZFS_TYPE_DATASET, 333 "<sensitivity label>", "MLSLABEL"); 334 335 /* readonly number properties */ 336 zprop_register_number(ZFS_PROP_USED, "used", 0, PROP_READONLY, 337 ZFS_TYPE_DATASET, "<size>", "USED"); 338 zprop_register_number(ZFS_PROP_AVAILABLE, "available", 0, PROP_READONLY, 339 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "<size>", "AVAIL"); 340 zprop_register_number(ZFS_PROP_REFERENCED, "referenced", 0, 341 PROP_READONLY, ZFS_TYPE_DATASET, "<size>", "REFER"); 342 zprop_register_number(ZFS_PROP_COMPRESSRATIO, "compressratio", 0, 343 PROP_READONLY, ZFS_TYPE_DATASET, 344 "<1.00x or higher if compressed>", "RATIO"); 345 zprop_register_number(ZFS_PROP_REFRATIO, "refcompressratio", 0, 346 PROP_READONLY, ZFS_TYPE_DATASET, 347 "<1.00x or higher if compressed>", "REFRATIO"); 348 zprop_register_number(ZFS_PROP_VOLBLOCKSIZE, "volblocksize", 349 ZVOL_DEFAULT_BLOCKSIZE, PROP_ONETIME, 350 ZFS_TYPE_VOLUME, "512 to 128k, power of 2", "VOLBLOCK"); 351 zprop_register_number(ZFS_PROP_USEDSNAP, "usedbysnapshots", 0, 352 PROP_READONLY, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "<size>", 353 "USEDSNAP"); 354 zprop_register_number(ZFS_PROP_USEDDS, "usedbydataset", 0, 355 PROP_READONLY, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "<size>", 356 "USEDDS"); 357 zprop_register_number(ZFS_PROP_USEDCHILD, "usedbychildren", 0, 358 PROP_READONLY, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "<size>", 359 "USEDCHILD"); 360 zprop_register_number(ZFS_PROP_USEDREFRESERV, "usedbyrefreservation", 0, 361 PROP_READONLY, 362 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "<size>", "USEDREFRESERV"); 363 zprop_register_number(ZFS_PROP_USERREFS, "userrefs", 0, PROP_READONLY, 364 ZFS_TYPE_SNAPSHOT, "<count>", "USERREFS"); 365 zprop_register_number(ZFS_PROP_WRITTEN, "written", 0, PROP_READONLY, 366 ZFS_TYPE_DATASET, "<size>", "WRITTEN"); 367 zprop_register_number(ZFS_PROP_LOGICALUSED, "logicalused", 0, 368 PROP_READONLY, ZFS_TYPE_DATASET, "<size>", "LUSED"); 369 zprop_register_number(ZFS_PROP_LOGICALREFERENCED, "logicalreferenced", 370 0, PROP_READONLY, ZFS_TYPE_DATASET, "<size>", "LREFER"); 371 372 /* default number properties */ 373 zprop_register_number(ZFS_PROP_QUOTA, "quota", 0, PROP_DEFAULT, 374 ZFS_TYPE_FILESYSTEM, "<size> | none", "QUOTA"); 375 zprop_register_number(ZFS_PROP_RESERVATION, "reservation", 0, 376 PROP_DEFAULT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, 377 "<size> | none", "RESERV"); 378 zprop_register_number(ZFS_PROP_VOLSIZE, "volsize", 0, PROP_DEFAULT, 379 ZFS_TYPE_VOLUME, "<size>", "VOLSIZE"); 380 zprop_register_number(ZFS_PROP_REFQUOTA, "refquota", 0, PROP_DEFAULT, 381 ZFS_TYPE_FILESYSTEM, "<size> | none", "REFQUOTA"); 382 zprop_register_number(ZFS_PROP_REFRESERVATION, "refreservation", 0, 383 PROP_DEFAULT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, 384 "<size> | none", "REFRESERV"); 385 zprop_register_number(ZFS_PROP_FILESYSTEM_LIMIT, "filesystem_limit", 386 UINT64_MAX, PROP_DEFAULT, ZFS_TYPE_FILESYSTEM, 387 "<count> | none", "FSLIMIT"); 388 zprop_register_number(ZFS_PROP_SNAPSHOT_LIMIT, "snapshot_limit", 389 UINT64_MAX, PROP_DEFAULT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, 390 "<count> | none", "SSLIMIT"); 391 zprop_register_number(ZFS_PROP_FILESYSTEM_COUNT, "filesystem_count", 392 UINT64_MAX, PROP_DEFAULT, ZFS_TYPE_FILESYSTEM, 393 "<count>", "FSCOUNT"); 394 zprop_register_number(ZFS_PROP_SNAPSHOT_COUNT, "snapshot_count", 395 UINT64_MAX, PROP_DEFAULT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, 396 "<count>", "SSCOUNT"); 397 398 /* inherit number properties */ 399 zprop_register_number(ZFS_PROP_RECORDSIZE, "recordsize", 400 SPA_MAXBLOCKSIZE, PROP_INHERIT, 401 ZFS_TYPE_FILESYSTEM, "512 to 128k, power of 2", "RECSIZE"); 402 403 /* hidden properties */ 404 zprop_register_hidden(ZFS_PROP_CREATETXG, "createtxg", PROP_TYPE_NUMBER, 405 PROP_READONLY, ZFS_TYPE_DATASET | ZFS_TYPE_BOOKMARK, "CREATETXG"); 406 zprop_register_hidden(ZFS_PROP_NUMCLONES, "numclones", PROP_TYPE_NUMBER, 407 PROP_READONLY, ZFS_TYPE_SNAPSHOT, "NUMCLONES"); 408 zprop_register_hidden(ZFS_PROP_NAME, "name", PROP_TYPE_STRING, 409 PROP_READONLY, ZFS_TYPE_DATASET | ZFS_TYPE_BOOKMARK, "NAME"); 410 zprop_register_hidden(ZFS_PROP_ISCSIOPTIONS, "iscsioptions", 411 PROP_TYPE_STRING, PROP_INHERIT, ZFS_TYPE_VOLUME, "ISCSIOPTIONS"); 412 zprop_register_hidden(ZFS_PROP_STMF_SHAREINFO, "stmf_sbd_lu", 413 PROP_TYPE_STRING, PROP_INHERIT, ZFS_TYPE_VOLUME, 414 "STMF_SBD_LU"); 415 zprop_register_hidden(ZFS_PROP_GUID, "guid", PROP_TYPE_NUMBER, 416 PROP_READONLY, ZFS_TYPE_DATASET | ZFS_TYPE_BOOKMARK, "GUID"); 417 zprop_register_hidden(ZFS_PROP_USERACCOUNTING, "useraccounting", 418 PROP_TYPE_NUMBER, PROP_READONLY, ZFS_TYPE_DATASET, 419 "USERACCOUNTING"); 420 zprop_register_hidden(ZFS_PROP_UNIQUE, "unique", PROP_TYPE_NUMBER, 421 PROP_READONLY, ZFS_TYPE_DATASET, "UNIQUE"); 422 zprop_register_hidden(ZFS_PROP_OBJSETID, "objsetid", PROP_TYPE_NUMBER, 423 PROP_READONLY, ZFS_TYPE_DATASET, "OBJSETID"); 424 zprop_register_hidden(ZFS_PROP_INCONSISTENT, "inconsistent", 425 PROP_TYPE_NUMBER, PROP_READONLY, ZFS_TYPE_DATASET, "INCONSISTENT"); 426 zprop_register_hidden(ZFS_PROP_PREV_SNAP, "prevsnap", PROP_TYPE_STRING, 427 PROP_READONLY, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "PREVSNAP"); 428 429 /* oddball properties */ 430 zprop_register_impl(ZFS_PROP_CREATION, "creation", PROP_TYPE_NUMBER, 0, 431 NULL, PROP_READONLY, ZFS_TYPE_DATASET | ZFS_TYPE_BOOKMARK, 432 "<date>", "CREATION", B_FALSE, B_TRUE, NULL); 433 } 434 435 boolean_t 436 zfs_prop_delegatable(zfs_prop_t prop) 437 { 438 zprop_desc_t *pd = &zfs_prop_table[prop]; 439 440 /* The mlslabel property is never delegatable. */ 441 if (prop == ZFS_PROP_MLSLABEL) 442 return (B_FALSE); 443 444 return (pd->pd_attr != PROP_READONLY); 445 } 446 447 /* 448 * Given a zfs dataset property name, returns the corresponding property ID. 449 */ 450 zfs_prop_t 451 zfs_name_to_prop(const char *propname) 452 { 453 return (zprop_name_to_prop(propname, ZFS_TYPE_DATASET)); 454 } 455 456 /* 457 * For user property names, we allow all lowercase alphanumeric characters, plus 458 * a few useful punctuation characters. 459 */ 460 static int 461 valid_char(char c) 462 { 463 return ((c >= 'a' && c <= 'z') || 464 (c >= '0' && c <= '9') || 465 c == '-' || c == '_' || c == '.' || c == ':'); 466 } 467 468 /* 469 * Returns true if this is a valid user-defined property (one with a ':'). 470 */ 471 boolean_t 472 zfs_prop_user(const char *name) 473 { 474 int i; 475 char c; 476 boolean_t foundsep = B_FALSE; 477 478 for (i = 0; i < strlen(name); i++) { 479 c = name[i]; 480 if (!valid_char(c)) 481 return (B_FALSE); 482 if (c == ':') 483 foundsep = B_TRUE; 484 } 485 486 if (!foundsep) 487 return (B_FALSE); 488 489 return (B_TRUE); 490 } 491 492 /* 493 * Returns true if this is a valid userspace-type property (one with a '@'). 494 * Note that after the @, any character is valid (eg, another @, for SID 495 * user@domain). 496 */ 497 boolean_t 498 zfs_prop_userquota(const char *name) 499 { 500 zfs_userquota_prop_t prop; 501 502 for (prop = 0; prop < ZFS_NUM_USERQUOTA_PROPS; prop++) { 503 if (strncmp(name, zfs_userquota_prop_prefixes[prop], 504 strlen(zfs_userquota_prop_prefixes[prop])) == 0) { 505 return (B_TRUE); 506 } 507 } 508 509 return (B_FALSE); 510 } 511 512 /* 513 * Returns true if this is a valid written@ property. 514 * Note that after the @, any character is valid (eg, another @, for 515 * written@pool/fs@origin). 516 */ 517 boolean_t 518 zfs_prop_written(const char *name) 519 { 520 static const char *prefix = "written@"; 521 return (strncmp(name, prefix, strlen(prefix)) == 0); 522 } 523 524 /* 525 * Tables of index types, plus functions to convert between the user view 526 * (strings) and internal representation (uint64_t). 527 */ 528 int 529 zfs_prop_string_to_index(zfs_prop_t prop, const char *string, uint64_t *index) 530 { 531 return (zprop_string_to_index(prop, string, index, ZFS_TYPE_DATASET)); 532 } 533 534 int 535 zfs_prop_index_to_string(zfs_prop_t prop, uint64_t index, const char **string) 536 { 537 return (zprop_index_to_string(prop, index, string, ZFS_TYPE_DATASET)); 538 } 539 540 uint64_t 541 zfs_prop_random_value(zfs_prop_t prop, uint64_t seed) 542 { 543 return (zprop_random_value(prop, seed, ZFS_TYPE_DATASET)); 544 } 545 546 /* 547 * Returns TRUE if the property applies to any of the given dataset types. 548 */ 549 boolean_t 550 zfs_prop_valid_for_type(int prop, zfs_type_t types) 551 { 552 return (zprop_valid_for_type(prop, types)); 553 } 554 555 zprop_type_t 556 zfs_prop_get_type(zfs_prop_t prop) 557 { 558 return (zfs_prop_table[prop].pd_proptype); 559 } 560 561 /* 562 * Returns TRUE if the property is readonly. 563 */ 564 boolean_t 565 zfs_prop_readonly(zfs_prop_t prop) 566 { 567 return (zfs_prop_table[prop].pd_attr == PROP_READONLY || 568 zfs_prop_table[prop].pd_attr == PROP_ONETIME); 569 } 570 571 /* 572 * Returns TRUE if the property is only allowed to be set once. 573 */ 574 boolean_t 575 zfs_prop_setonce(zfs_prop_t prop) 576 { 577 return (zfs_prop_table[prop].pd_attr == PROP_ONETIME); 578 } 579 580 const char * 581 zfs_prop_default_string(zfs_prop_t prop) 582 { 583 return (zfs_prop_table[prop].pd_strdefault); 584 } 585 586 uint64_t 587 zfs_prop_default_numeric(zfs_prop_t prop) 588 { 589 return (zfs_prop_table[prop].pd_numdefault); 590 } 591 592 /* 593 * Given a dataset property ID, returns the corresponding name. 594 * Assuming the zfs dataset property ID is valid. 595 */ 596 const char * 597 zfs_prop_to_name(zfs_prop_t prop) 598 { 599 return (zfs_prop_table[prop].pd_name); 600 } 601 602 /* 603 * Returns TRUE if the property is inheritable. 604 */ 605 boolean_t 606 zfs_prop_inheritable(zfs_prop_t prop) 607 { 608 return (zfs_prop_table[prop].pd_attr == PROP_INHERIT || 609 zfs_prop_table[prop].pd_attr == PROP_ONETIME); 610 } 611 612 #ifndef _KERNEL 613 614 /* 615 * Returns a string describing the set of acceptable values for the given 616 * zfs property, or NULL if it cannot be set. 617 */ 618 const char * 619 zfs_prop_values(zfs_prop_t prop) 620 { 621 return (zfs_prop_table[prop].pd_values); 622 } 623 624 /* 625 * Returns TRUE if this property is a string type. Note that index types 626 * (compression, checksum) are treated as strings in userland, even though they 627 * are stored numerically on disk. 628 */ 629 int 630 zfs_prop_is_string(zfs_prop_t prop) 631 { 632 return (zfs_prop_table[prop].pd_proptype == PROP_TYPE_STRING || 633 zfs_prop_table[prop].pd_proptype == PROP_TYPE_INDEX); 634 } 635 636 /* 637 * Returns the column header for the given property. Used only in 638 * 'zfs list -o', but centralized here with the other property information. 639 */ 640 const char * 641 zfs_prop_column_name(zfs_prop_t prop) 642 { 643 return (zfs_prop_table[prop].pd_colname); 644 } 645 646 /* 647 * Returns whether the given property should be displayed right-justified for 648 * 'zfs list'. 649 */ 650 boolean_t 651 zfs_prop_align_right(zfs_prop_t prop) 652 { 653 return (zfs_prop_table[prop].pd_rightalign); 654 } 655 656 #endif 657