zfs_prop.c revision 339142
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, 2016 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 49static 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 */ 52const char *zfs_userquota_prop_prefixes[] = { 53 "userused@", 54 "userquota@", 55 "groupused@", 56 "groupquota@" 57}; 58 59zprop_desc_t * 60zfs_prop_get_table(void) 61{ 62 return (zfs_prop_table); 63} 64 65void 66zfs_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#ifdef illumos 78 { "edonr", ZIO_CHECKSUM_EDONR }, 79#endif 80 { NULL } 81 }; 82 83 static zprop_index_t dedup_table[] = { 84 { "on", ZIO_CHECKSUM_ON }, 85 { "off", ZIO_CHECKSUM_OFF }, 86 { "verify", ZIO_CHECKSUM_ON | ZIO_CHECKSUM_VERIFY }, 87 { "sha256", ZIO_CHECKSUM_SHA256 }, 88 { "sha256,verify", 89 ZIO_CHECKSUM_SHA256 | ZIO_CHECKSUM_VERIFY }, 90 { "sha512", ZIO_CHECKSUM_SHA512 }, 91 { "sha512,verify", 92 ZIO_CHECKSUM_SHA512 | ZIO_CHECKSUM_VERIFY }, 93 { "skein", ZIO_CHECKSUM_SKEIN }, 94 { "skein,verify", 95 ZIO_CHECKSUM_SKEIN | ZIO_CHECKSUM_VERIFY }, 96#ifdef illumos 97 { "edonr,verify", 98 ZIO_CHECKSUM_EDONR | ZIO_CHECKSUM_VERIFY }, 99#endif 100 { NULL } 101 }; 102 103 static zprop_index_t compress_table[] = { 104 { "on", ZIO_COMPRESS_ON }, 105 { "off", ZIO_COMPRESS_OFF }, 106 { "lzjb", ZIO_COMPRESS_LZJB }, 107 { "gzip", ZIO_COMPRESS_GZIP_6 }, /* gzip default */ 108 { "gzip-1", ZIO_COMPRESS_GZIP_1 }, 109 { "gzip-2", ZIO_COMPRESS_GZIP_2 }, 110 { "gzip-3", ZIO_COMPRESS_GZIP_3 }, 111 { "gzip-4", ZIO_COMPRESS_GZIP_4 }, 112 { "gzip-5", ZIO_COMPRESS_GZIP_5 }, 113 { "gzip-6", ZIO_COMPRESS_GZIP_6 }, 114 { "gzip-7", ZIO_COMPRESS_GZIP_7 }, 115 { "gzip-8", ZIO_COMPRESS_GZIP_8 }, 116 { "gzip-9", ZIO_COMPRESS_GZIP_9 }, 117 { "zle", ZIO_COMPRESS_ZLE }, 118 { "lz4", ZIO_COMPRESS_LZ4 }, 119 { NULL } 120 }; 121 122 static zprop_index_t snapdir_table[] = { 123 { "hidden", ZFS_SNAPDIR_HIDDEN }, 124 { "visible", ZFS_SNAPDIR_VISIBLE }, 125 { NULL } 126 }; 127 128 static zprop_index_t acl_mode_table[] = { 129 { "discard", ZFS_ACL_DISCARD }, 130 { "groupmask", ZFS_ACL_GROUPMASK }, 131 { "passthrough", ZFS_ACL_PASSTHROUGH }, 132 { "restricted", ZFS_ACL_RESTRICTED }, 133 { NULL } 134 }; 135 136 static zprop_index_t acl_inherit_table[] = { 137 { "discard", ZFS_ACL_DISCARD }, 138 { "noallow", ZFS_ACL_NOALLOW }, 139 { "restricted", ZFS_ACL_RESTRICTED }, 140 { "passthrough", ZFS_ACL_PASSTHROUGH }, 141 { "secure", ZFS_ACL_RESTRICTED }, /* bkwrd compatability */ 142 { "passthrough-x", ZFS_ACL_PASSTHROUGH_X }, 143 { NULL } 144 }; 145 146 static zprop_index_t case_table[] = { 147 { "sensitive", ZFS_CASE_SENSITIVE }, 148 { "insensitive", ZFS_CASE_INSENSITIVE }, 149 { "mixed", ZFS_CASE_MIXED }, 150 { NULL } 151 }; 152 153 static zprop_index_t copies_table[] = { 154 { "1", 1 }, 155 { "2", 2 }, 156 { "3", 3 }, 157 { NULL } 158 }; 159 160 /* 161 * Use the unique flags we have to send to u8_strcmp() and/or 162 * u8_textprep() to represent the various normalization property 163 * values. 164 */ 165 static zprop_index_t normalize_table[] = { 166 { "none", 0 }, 167 { "formD", U8_TEXTPREP_NFD }, 168 { "formKC", U8_TEXTPREP_NFKC }, 169 { "formC", U8_TEXTPREP_NFC }, 170 { "formKD", U8_TEXTPREP_NFKD }, 171 { NULL } 172 }; 173 174 static zprop_index_t version_table[] = { 175 { "1", 1 }, 176 { "2", 2 }, 177 { "3", 3 }, 178 { "4", 4 }, 179 { "5", 5 }, 180 { "current", ZPL_VERSION }, 181 { NULL } 182 }; 183 184 static zprop_index_t boolean_table[] = { 185 { "off", 0 }, 186 { "on", 1 }, 187 { NULL } 188 }; 189 190 static zprop_index_t logbias_table[] = { 191 { "latency", ZFS_LOGBIAS_LATENCY }, 192 { "throughput", ZFS_LOGBIAS_THROUGHPUT }, 193 { NULL } 194 }; 195 196 static zprop_index_t canmount_table[] = { 197 { "off", ZFS_CANMOUNT_OFF }, 198 { "on", ZFS_CANMOUNT_ON }, 199 { "noauto", ZFS_CANMOUNT_NOAUTO }, 200 { NULL } 201 }; 202 203 static zprop_index_t cache_table[] = { 204 { "none", ZFS_CACHE_NONE }, 205 { "metadata", ZFS_CACHE_METADATA }, 206 { "all", ZFS_CACHE_ALL }, 207 { NULL } 208 }; 209 210 static zprop_index_t sync_table[] = { 211 { "standard", ZFS_SYNC_STANDARD }, 212 { "always", ZFS_SYNC_ALWAYS }, 213 { "disabled", ZFS_SYNC_DISABLED }, 214 { NULL } 215 }; 216 217 static zprop_index_t volmode_table[] = { 218 { "default", ZFS_VOLMODE_DEFAULT }, 219 { "geom", ZFS_VOLMODE_GEOM }, 220 { "dev", ZFS_VOLMODE_DEV }, 221 { "none", ZFS_VOLMODE_NONE }, 222 { NULL } 223 }; 224 225 static zprop_index_t redundant_metadata_table[] = { 226 { "all", ZFS_REDUNDANT_METADATA_ALL }, 227 { "most", ZFS_REDUNDANT_METADATA_MOST }, 228 { NULL } 229 }; 230 231 /* inherit index properties */ 232 zprop_register_index(ZFS_PROP_REDUNDANT_METADATA, "redundant_metadata", 233 ZFS_REDUNDANT_METADATA_ALL, 234 PROP_INHERIT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, 235 "all | most", "REDUND_MD", 236 redundant_metadata_table); 237 zprop_register_index(ZFS_PROP_SYNC, "sync", ZFS_SYNC_STANDARD, 238 PROP_INHERIT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, 239 "standard | always | disabled", "SYNC", 240 sync_table); 241 zprop_register_index(ZFS_PROP_CHECKSUM, "checksum", 242 ZIO_CHECKSUM_DEFAULT, PROP_INHERIT, ZFS_TYPE_FILESYSTEM | 243 ZFS_TYPE_VOLUME, 244 "on | off | fletcher2 | fletcher4 | sha256 | sha512 | " 245 "skein", "CHECKSUM", checksum_table); 246 zprop_register_index(ZFS_PROP_DEDUP, "dedup", ZIO_CHECKSUM_OFF, 247 PROP_INHERIT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, 248 "on | off | verify | sha256[,verify], sha512[,verify], " 249 "skein[,verify]", "DEDUP", dedup_table); 250 zprop_register_index(ZFS_PROP_COMPRESSION, "compression", 251 ZIO_COMPRESS_DEFAULT, PROP_INHERIT, 252 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, 253 "on | off | lzjb | gzip | gzip-[1-9] | zle | lz4", 254 "COMPRESS", compress_table); 255 zprop_register_index(ZFS_PROP_SNAPDIR, "snapdir", ZFS_SNAPDIR_HIDDEN, 256 PROP_INHERIT, ZFS_TYPE_FILESYSTEM, 257 "hidden | visible", "SNAPDIR", snapdir_table); 258 zprop_register_index(ZFS_PROP_ACLMODE, "aclmode", ZFS_ACL_DISCARD, 259 PROP_INHERIT, ZFS_TYPE_FILESYSTEM, 260 "discard | groupmask | passthrough | restricted", "ACLMODE", 261 acl_mode_table); 262 zprop_register_index(ZFS_PROP_ACLINHERIT, "aclinherit", 263 ZFS_ACL_RESTRICTED, PROP_INHERIT, ZFS_TYPE_FILESYSTEM, 264 "discard | noallow | restricted | passthrough | passthrough-x", 265 "ACLINHERIT", acl_inherit_table); 266 zprop_register_index(ZFS_PROP_COPIES, "copies", 1, PROP_INHERIT, 267 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, 268 "1 | 2 | 3", "COPIES", copies_table); 269 zprop_register_index(ZFS_PROP_PRIMARYCACHE, "primarycache", 270 ZFS_CACHE_ALL, PROP_INHERIT, 271 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT | ZFS_TYPE_VOLUME, 272 "all | none | metadata", "PRIMARYCACHE", cache_table); 273 zprop_register_index(ZFS_PROP_SECONDARYCACHE, "secondarycache", 274 ZFS_CACHE_ALL, PROP_INHERIT, 275 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT | ZFS_TYPE_VOLUME, 276 "all | none | metadata", "SECONDARYCACHE", cache_table); 277 zprop_register_index(ZFS_PROP_LOGBIAS, "logbias", ZFS_LOGBIAS_LATENCY, 278 PROP_INHERIT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, 279 "latency | throughput", "LOGBIAS", logbias_table); 280 zprop_register_index(ZFS_PROP_VOLMODE, "volmode", 281 ZFS_VOLMODE_DEFAULT, PROP_INHERIT, 282 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT | ZFS_TYPE_VOLUME, 283 "default | geom | dev | none", "VOLMODE", volmode_table); 284 285 /* inherit index (boolean) properties */ 286 zprop_register_index(ZFS_PROP_ATIME, "atime", 1, PROP_INHERIT, 287 ZFS_TYPE_FILESYSTEM, "on | off", "ATIME", boolean_table); 288 zprop_register_index(ZFS_PROP_DEVICES, "devices", 1, PROP_INHERIT, 289 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT, "on | off", "DEVICES", 290 boolean_table); 291 zprop_register_index(ZFS_PROP_EXEC, "exec", 1, PROP_INHERIT, 292 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT, "on | off", "EXEC", 293 boolean_table); 294 zprop_register_index(ZFS_PROP_SETUID, "setuid", 1, PROP_INHERIT, 295 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT, "on | off", "SETUID", 296 boolean_table); 297 zprop_register_index(ZFS_PROP_READONLY, "readonly", 0, PROP_INHERIT, 298 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "on | off", "RDONLY", 299 boolean_table); 300 zprop_register_index(ZFS_PROP_ZONED, "jailed", 0, PROP_INHERIT, 301 ZFS_TYPE_FILESYSTEM, "on | off", "JAILED", boolean_table); 302 zprop_register_index(ZFS_PROP_XATTR, "xattr", 1, PROP_INHERIT, 303 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT, "on | off", "XATTR", 304 boolean_table); 305 zprop_register_index(ZFS_PROP_VSCAN, "vscan", 0, PROP_INHERIT, 306 ZFS_TYPE_FILESYSTEM, "on | off", "VSCAN", 307 boolean_table); 308 zprop_register_index(ZFS_PROP_NBMAND, "nbmand", 0, PROP_INHERIT, 309 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT, "on | off", "NBMAND", 310 boolean_table); 311 312 /* default index properties */ 313 zprop_register_index(ZFS_PROP_VERSION, "version", 0, PROP_DEFAULT, 314 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT, 315 "1 | 2 | 3 | 4 | 5 | current", "VERSION", version_table); 316 zprop_register_index(ZFS_PROP_CANMOUNT, "canmount", ZFS_CANMOUNT_ON, 317 PROP_DEFAULT, ZFS_TYPE_FILESYSTEM, "on | off | noauto", 318 "CANMOUNT", canmount_table); 319 320 /* readonly index (boolean) properties */ 321 zprop_register_index(ZFS_PROP_MOUNTED, "mounted", 0, PROP_READONLY, 322 ZFS_TYPE_FILESYSTEM, "yes | no", "MOUNTED", boolean_table); 323 zprop_register_index(ZFS_PROP_DEFER_DESTROY, "defer_destroy", 0, 324 PROP_READONLY, ZFS_TYPE_SNAPSHOT, "yes | no", "DEFER_DESTROY", 325 boolean_table); 326 327 /* set once index properties */ 328 zprop_register_index(ZFS_PROP_NORMALIZE, "normalization", 0, 329 PROP_ONETIME, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT, 330 "none | formC | formD | formKC | formKD", "NORMALIZATION", 331 normalize_table); 332 zprop_register_index(ZFS_PROP_CASE, "casesensitivity", 333 ZFS_CASE_SENSITIVE, PROP_ONETIME, ZFS_TYPE_FILESYSTEM | 334 ZFS_TYPE_SNAPSHOT, 335 "sensitive | insensitive | mixed", "CASE", case_table); 336 337 /* set once index (boolean) properties */ 338 zprop_register_index(ZFS_PROP_UTF8ONLY, "utf8only", 0, PROP_ONETIME, 339 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT, 340 "on | off", "UTF8ONLY", boolean_table); 341 342 /* string properties */ 343 zprop_register_string(ZFS_PROP_ORIGIN, "origin", NULL, PROP_READONLY, 344 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "<snapshot>", "ORIGIN"); 345 zprop_register_string(ZFS_PROP_CLONES, "clones", NULL, PROP_READONLY, 346 ZFS_TYPE_SNAPSHOT, "<dataset>[,...]", "CLONES"); 347 zprop_register_string(ZFS_PROP_MOUNTPOINT, "mountpoint", "/", 348 PROP_INHERIT, ZFS_TYPE_FILESYSTEM, "<path> | legacy | none", 349 "MOUNTPOINT"); 350 zprop_register_string(ZFS_PROP_SHARENFS, "sharenfs", "off", 351 PROP_INHERIT, ZFS_TYPE_FILESYSTEM, "on | off | share(1M) options", 352 "SHARENFS"); 353 zprop_register_string(ZFS_PROP_TYPE, "type", NULL, PROP_READONLY, 354 ZFS_TYPE_DATASET | ZFS_TYPE_BOOKMARK, 355 "filesystem | volume | snapshot | bookmark", "TYPE"); 356 zprop_register_string(ZFS_PROP_SHARESMB, "sharesmb", "off", 357 PROP_INHERIT, ZFS_TYPE_FILESYSTEM, 358 "on | off | sharemgr(1M) options", "SHARESMB"); 359 zprop_register_string(ZFS_PROP_MLSLABEL, "mlslabel", 360 ZFS_MLSLABEL_DEFAULT, PROP_INHERIT, ZFS_TYPE_DATASET, 361 "<sensitivity label>", "MLSLABEL"); 362 zprop_register_string(ZFS_PROP_RECEIVE_RESUME_TOKEN, 363 "receive_resume_token", 364 NULL, PROP_READONLY, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, 365 "<string token>", "RESUMETOK"); 366 367 /* readonly number properties */ 368 zprop_register_number(ZFS_PROP_USED, "used", 0, PROP_READONLY, 369 ZFS_TYPE_DATASET, "<size>", "USED"); 370 zprop_register_number(ZFS_PROP_AVAILABLE, "available", 0, PROP_READONLY, 371 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "<size>", "AVAIL"); 372 zprop_register_number(ZFS_PROP_REFERENCED, "referenced", 0, 373 PROP_READONLY, ZFS_TYPE_DATASET, "<size>", "REFER"); 374 zprop_register_number(ZFS_PROP_COMPRESSRATIO, "compressratio", 0, 375 PROP_READONLY, ZFS_TYPE_DATASET, 376 "<1.00x or higher if compressed>", "RATIO"); 377 zprop_register_number(ZFS_PROP_REFRATIO, "refcompressratio", 0, 378 PROP_READONLY, ZFS_TYPE_DATASET, 379 "<1.00x or higher if compressed>", "REFRATIO"); 380 zprop_register_number(ZFS_PROP_VOLBLOCKSIZE, "volblocksize", 381 ZVOL_DEFAULT_BLOCKSIZE, PROP_ONETIME, 382 ZFS_TYPE_VOLUME, "512 to 128k, power of 2", "VOLBLOCK"); 383 zprop_register_number(ZFS_PROP_USEDSNAP, "usedbysnapshots", 0, 384 PROP_READONLY, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "<size>", 385 "USEDSNAP"); 386 zprop_register_number(ZFS_PROP_USEDDS, "usedbydataset", 0, 387 PROP_READONLY, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "<size>", 388 "USEDDS"); 389 zprop_register_number(ZFS_PROP_USEDCHILD, "usedbychildren", 0, 390 PROP_READONLY, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "<size>", 391 "USEDCHILD"); 392 zprop_register_number(ZFS_PROP_USEDREFRESERV, "usedbyrefreservation", 0, 393 PROP_READONLY, 394 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "<size>", "USEDREFRESERV"); 395 zprop_register_number(ZFS_PROP_USERREFS, "userrefs", 0, PROP_READONLY, 396 ZFS_TYPE_SNAPSHOT, "<count>", "USERREFS"); 397 zprop_register_number(ZFS_PROP_WRITTEN, "written", 0, PROP_READONLY, 398 ZFS_TYPE_DATASET, "<size>", "WRITTEN"); 399 zprop_register_number(ZFS_PROP_LOGICALUSED, "logicalused", 0, 400 PROP_READONLY, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "<size>", 401 "LUSED"); 402 zprop_register_number(ZFS_PROP_LOGICALREFERENCED, "logicalreferenced", 403 0, PROP_READONLY, ZFS_TYPE_DATASET, "<size>", "LREFER"); 404 405 /* default number properties */ 406 zprop_register_number(ZFS_PROP_QUOTA, "quota", 0, PROP_DEFAULT, 407 ZFS_TYPE_FILESYSTEM, "<size> | none", "QUOTA"); 408 zprop_register_number(ZFS_PROP_RESERVATION, "reservation", 0, 409 PROP_DEFAULT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, 410 "<size> | none", "RESERV"); 411 zprop_register_number(ZFS_PROP_VOLSIZE, "volsize", 0, PROP_DEFAULT, 412 ZFS_TYPE_VOLUME, "<size>", "VOLSIZE"); 413 zprop_register_number(ZFS_PROP_REFQUOTA, "refquota", 0, PROP_DEFAULT, 414 ZFS_TYPE_FILESYSTEM, "<size> | none", "REFQUOTA"); 415 zprop_register_number(ZFS_PROP_REFRESERVATION, "refreservation", 0, 416 PROP_DEFAULT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, 417 "<size> | none", "REFRESERV"); 418 zprop_register_number(ZFS_PROP_FILESYSTEM_LIMIT, "filesystem_limit", 419 UINT64_MAX, PROP_DEFAULT, ZFS_TYPE_FILESYSTEM, 420 "<count> | none", "FSLIMIT"); 421 zprop_register_number(ZFS_PROP_SNAPSHOT_LIMIT, "snapshot_limit", 422 UINT64_MAX, PROP_DEFAULT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, 423 "<count> | none", "SSLIMIT"); 424 zprop_register_number(ZFS_PROP_FILESYSTEM_COUNT, "filesystem_count", 425 UINT64_MAX, PROP_DEFAULT, ZFS_TYPE_FILESYSTEM, 426 "<count>", "FSCOUNT"); 427 zprop_register_number(ZFS_PROP_SNAPSHOT_COUNT, "snapshot_count", 428 UINT64_MAX, PROP_DEFAULT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, 429 "<count>", "SSCOUNT"); 430 zprop_register_number(ZFS_PROP_GUID, "guid", 0, PROP_READONLY, 431 ZFS_TYPE_DATASET | ZFS_TYPE_BOOKMARK, "<uint64>", "GUID"); 432 zprop_register_number(ZFS_PROP_CREATETXG, "createtxg", 0, PROP_READONLY, 433 ZFS_TYPE_DATASET | ZFS_TYPE_BOOKMARK, "<uint64>", "CREATETXG"); 434 435 /* inherit number properties */ 436 zprop_register_number(ZFS_PROP_RECORDSIZE, "recordsize", 437 SPA_OLD_MAXBLOCKSIZE, PROP_INHERIT, 438 ZFS_TYPE_FILESYSTEM, "512 to 1M, power of 2", "RECSIZE"); 439 440 /* hidden properties */ 441 zprop_register_hidden(ZFS_PROP_REMAPTXG, "remaptxg", PROP_TYPE_NUMBER, 442 PROP_READONLY, ZFS_TYPE_DATASET, "REMAPTXG"); 443 zprop_register_hidden(ZFS_PROP_NUMCLONES, "numclones", PROP_TYPE_NUMBER, 444 PROP_READONLY, ZFS_TYPE_SNAPSHOT, "NUMCLONES"); 445 zprop_register_hidden(ZFS_PROP_NAME, "name", PROP_TYPE_STRING, 446 PROP_READONLY, ZFS_TYPE_DATASET | ZFS_TYPE_BOOKMARK, "NAME"); 447 zprop_register_hidden(ZFS_PROP_ISCSIOPTIONS, "iscsioptions", 448 PROP_TYPE_STRING, PROP_INHERIT, ZFS_TYPE_VOLUME, "ISCSIOPTIONS"); 449 zprop_register_hidden(ZFS_PROP_STMF_SHAREINFO, "stmf_sbd_lu", 450 PROP_TYPE_STRING, PROP_INHERIT, ZFS_TYPE_VOLUME, 451 "STMF_SBD_LU"); 452 zprop_register_hidden(ZFS_PROP_USERACCOUNTING, "useraccounting", 453 PROP_TYPE_NUMBER, PROP_READONLY, ZFS_TYPE_DATASET, 454 "USERACCOUNTING"); 455 zprop_register_hidden(ZFS_PROP_UNIQUE, "unique", PROP_TYPE_NUMBER, 456 PROP_READONLY, ZFS_TYPE_DATASET, "UNIQUE"); 457 zprop_register_hidden(ZFS_PROP_OBJSETID, "objsetid", PROP_TYPE_NUMBER, 458 PROP_READONLY, ZFS_TYPE_DATASET, "OBJSETID"); 459 zprop_register_hidden(ZFS_PROP_INCONSISTENT, "inconsistent", 460 PROP_TYPE_NUMBER, PROP_READONLY, ZFS_TYPE_DATASET, "INCONSISTENT"); 461 zprop_register_hidden(ZFS_PROP_PREV_SNAP, "prevsnap", PROP_TYPE_STRING, 462 PROP_READONLY, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "PREVSNAP"); 463 464 /* oddball properties */ 465 zprop_register_impl(ZFS_PROP_CREATION, "creation", PROP_TYPE_NUMBER, 0, 466 NULL, PROP_READONLY, ZFS_TYPE_DATASET | ZFS_TYPE_BOOKMARK, 467 "<date>", "CREATION", B_FALSE, B_TRUE, NULL); 468} 469 470boolean_t 471zfs_prop_delegatable(zfs_prop_t prop) 472{ 473 zprop_desc_t *pd = &zfs_prop_table[prop]; 474 475 /* The mlslabel property is never delegatable. */ 476 if (prop == ZFS_PROP_MLSLABEL) 477 return (B_FALSE); 478 479 return (pd->pd_attr != PROP_READONLY); 480} 481 482/* 483 * Given a zfs dataset property name, returns the corresponding property ID. 484 */ 485zfs_prop_t 486zfs_name_to_prop(const char *propname) 487{ 488 return (zprop_name_to_prop(propname, ZFS_TYPE_DATASET)); 489} 490 491/* 492 * For user property names, we allow all lowercase alphanumeric characters, plus 493 * a few useful punctuation characters. 494 */ 495static int 496valid_char(char c) 497{ 498 return ((c >= 'a' && c <= 'z') || 499 (c >= '0' && c <= '9') || 500 c == '-' || c == '_' || c == '.' || c == ':'); 501} 502 503/* 504 * Returns true if this is a valid user-defined property (one with a ':'). 505 */ 506boolean_t 507zfs_prop_user(const char *name) 508{ 509 int i; 510 char c; 511 boolean_t foundsep = B_FALSE; 512 513 for (i = 0; i < strlen(name); i++) { 514 c = name[i]; 515 if (!valid_char(c)) 516 return (B_FALSE); 517 if (c == ':') 518 foundsep = B_TRUE; 519 } 520 521 if (!foundsep) 522 return (B_FALSE); 523 524 return (B_TRUE); 525} 526 527/* 528 * Returns true if this is a valid userspace-type property (one with a '@'). 529 * Note that after the @, any character is valid (eg, another @, for SID 530 * user@domain). 531 */ 532boolean_t 533zfs_prop_userquota(const char *name) 534{ 535 zfs_userquota_prop_t prop; 536 537 for (prop = 0; prop < ZFS_NUM_USERQUOTA_PROPS; prop++) { 538 if (strncmp(name, zfs_userquota_prop_prefixes[prop], 539 strlen(zfs_userquota_prop_prefixes[prop])) == 0) { 540 return (B_TRUE); 541 } 542 } 543 544 return (B_FALSE); 545} 546 547/* 548 * Returns true if this is a valid written@ property. 549 * Note that after the @, any character is valid (eg, another @, for 550 * written@pool/fs@origin). 551 */ 552boolean_t 553zfs_prop_written(const char *name) 554{ 555 static const char *prefix = "written@"; 556 return (strncmp(name, prefix, strlen(prefix)) == 0); 557} 558 559/* 560 * Tables of index types, plus functions to convert between the user view 561 * (strings) and internal representation (uint64_t). 562 */ 563int 564zfs_prop_string_to_index(zfs_prop_t prop, const char *string, uint64_t *index) 565{ 566 return (zprop_string_to_index(prop, string, index, ZFS_TYPE_DATASET)); 567} 568 569int 570zfs_prop_index_to_string(zfs_prop_t prop, uint64_t index, const char **string) 571{ 572 return (zprop_index_to_string(prop, index, string, ZFS_TYPE_DATASET)); 573} 574 575uint64_t 576zfs_prop_random_value(zfs_prop_t prop, uint64_t seed) 577{ 578 return (zprop_random_value(prop, seed, ZFS_TYPE_DATASET)); 579} 580 581/* 582 * Returns TRUE if the property applies to any of the given dataset types. 583 */ 584boolean_t 585zfs_prop_valid_for_type(int prop, zfs_type_t types) 586{ 587 return (zprop_valid_for_type(prop, types)); 588} 589 590zprop_type_t 591zfs_prop_get_type(zfs_prop_t prop) 592{ 593 return (zfs_prop_table[prop].pd_proptype); 594} 595 596/* 597 * Returns TRUE if the property is readonly. 598 */ 599boolean_t 600zfs_prop_readonly(zfs_prop_t prop) 601{ 602 return (zfs_prop_table[prop].pd_attr == PROP_READONLY || 603 zfs_prop_table[prop].pd_attr == PROP_ONETIME); 604} 605 606/* 607 * Returns TRUE if the property is visible (not hidden). 608 */ 609boolean_t 610zfs_prop_visible(zfs_prop_t prop) 611{ 612 return (zfs_prop_table[prop].pd_visible); 613} 614 615/* 616 * Returns TRUE if the property is only allowed to be set once. 617 */ 618boolean_t 619zfs_prop_setonce(zfs_prop_t prop) 620{ 621 return (zfs_prop_table[prop].pd_attr == PROP_ONETIME); 622} 623 624const char * 625zfs_prop_default_string(zfs_prop_t prop) 626{ 627 return (zfs_prop_table[prop].pd_strdefault); 628} 629 630uint64_t 631zfs_prop_default_numeric(zfs_prop_t prop) 632{ 633 return (zfs_prop_table[prop].pd_numdefault); 634} 635 636/* 637 * Given a dataset property ID, returns the corresponding name. 638 * Assuming the zfs dataset property ID is valid. 639 */ 640const char * 641zfs_prop_to_name(zfs_prop_t prop) 642{ 643 return (zfs_prop_table[prop].pd_name); 644} 645 646/* 647 * Returns TRUE if the property is inheritable. 648 */ 649boolean_t 650zfs_prop_inheritable(zfs_prop_t prop) 651{ 652 return (zfs_prop_table[prop].pd_attr == PROP_INHERIT || 653 zfs_prop_table[prop].pd_attr == PROP_ONETIME); 654} 655 656#ifndef _KERNEL 657 658/* 659 * Returns a string describing the set of acceptable values for the given 660 * zfs property, or NULL if it cannot be set. 661 */ 662const char * 663zfs_prop_values(zfs_prop_t prop) 664{ 665 return (zfs_prop_table[prop].pd_values); 666} 667 668/* 669 * Returns TRUE if this property is a string type. Note that index types 670 * (compression, checksum) are treated as strings in userland, even though they 671 * are stored numerically on disk. 672 */ 673int 674zfs_prop_is_string(zfs_prop_t prop) 675{ 676 return (zfs_prop_table[prop].pd_proptype == PROP_TYPE_STRING || 677 zfs_prop_table[prop].pd_proptype == PROP_TYPE_INDEX); 678} 679 680/* 681 * Returns the column header for the given property. Used only in 682 * 'zfs list -o', but centralized here with the other property information. 683 */ 684const char * 685zfs_prop_column_name(zfs_prop_t prop) 686{ 687 return (zfs_prop_table[prop].pd_colname); 688} 689 690/* 691 * Returns whether the given property should be displayed right-justified for 692 * 'zfs list'. 693 */ 694boolean_t 695zfs_prop_align_right(zfs_prop_t prop) 696{ 697 return (zfs_prop_table[prop].pd_rightalign); 698} 699 700#endif 701