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) 2014 Integros [integros.com] 26 * Copyright 2016, Joyent, Inc. 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 #include <sys/dsl_crypt.h> 38 39 #include "zfs_prop.h" 40 #include "zfs_deleg.h" 41 42 #if defined(_KERNEL) 43 #include <sys/systm.h> 44 #else 45 #include <stdlib.h> 46 #include <string.h> 47 #include <ctype.h> 48 #endif 49 50 static zprop_desc_t zfs_prop_table[ZFS_NUM_PROPS]; 51 52 /* Note this is indexed by zfs_userquota_prop_t, keep the order the same */ 53 const char *zfs_userquota_prop_prefixes[] = { 54 "userused@", 55 "userquota@", 56 "groupused@", 57 "groupquota@", 58 "userobjused@", 59 "userobjquota@", 60 "groupobjused@", 61 "groupobjquota@", 62 "projectused@", 63 "projectquota@", 64 "projectobjused@", 65 "projectobjquota@" 66 }; 67 68 zprop_desc_t * 69 zfs_prop_get_table(void) 70 { 71 return (zfs_prop_table); 72 } 73 74 void 75 zfs_prop_init(void) 76 { 77 static zprop_index_t checksum_table[] = { 78 { "on", ZIO_CHECKSUM_ON }, 79 { "off", ZIO_CHECKSUM_OFF }, 80 { "fletcher2", ZIO_CHECKSUM_FLETCHER_2 }, 81 { "fletcher4", ZIO_CHECKSUM_FLETCHER_4 }, 82 { "sha256", ZIO_CHECKSUM_SHA256 }, 83 { "noparity", ZIO_CHECKSUM_NOPARITY }, 84 { "sha512", ZIO_CHECKSUM_SHA512 }, 85 { "skein", ZIO_CHECKSUM_SKEIN }, 86 { "edonr", ZIO_CHECKSUM_EDONR }, 87 { NULL } 88 }; 89 90 static zprop_index_t dedup_table[] = { 91 { "on", ZIO_CHECKSUM_ON }, 92 { "off", ZIO_CHECKSUM_OFF }, 93 { "verify", ZIO_CHECKSUM_ON | ZIO_CHECKSUM_VERIFY }, 94 { "sha256", ZIO_CHECKSUM_SHA256 }, 95 { "sha256,verify", 96 ZIO_CHECKSUM_SHA256 | ZIO_CHECKSUM_VERIFY }, 97 { "sha512", ZIO_CHECKSUM_SHA512 }, 98 { "sha512,verify", 99 ZIO_CHECKSUM_SHA512 | ZIO_CHECKSUM_VERIFY }, 100 { "skein", ZIO_CHECKSUM_SKEIN }, 101 { "skein,verify", 102 ZIO_CHECKSUM_SKEIN | ZIO_CHECKSUM_VERIFY }, 103 { "edonr,verify", 104 ZIO_CHECKSUM_EDONR | ZIO_CHECKSUM_VERIFY }, 105 { NULL } 106 }; 107 108 static zprop_index_t compress_table[] = { 109 { "on", ZIO_COMPRESS_ON }, 110 { "off", ZIO_COMPRESS_OFF }, 111 { "lzjb", ZIO_COMPRESS_LZJB }, 112 { "gzip", ZIO_COMPRESS_GZIP_6 }, /* gzip default */ 113 { "gzip-1", ZIO_COMPRESS_GZIP_1 }, 114 { "gzip-2", ZIO_COMPRESS_GZIP_2 }, 115 { "gzip-3", ZIO_COMPRESS_GZIP_3 }, 116 { "gzip-4", ZIO_COMPRESS_GZIP_4 }, 117 { "gzip-5", ZIO_COMPRESS_GZIP_5 }, 118 { "gzip-6", ZIO_COMPRESS_GZIP_6 }, 119 { "gzip-7", ZIO_COMPRESS_GZIP_7 }, 120 { "gzip-8", ZIO_COMPRESS_GZIP_8 }, 121 { "gzip-9", ZIO_COMPRESS_GZIP_9 }, 122 { "zle", ZIO_COMPRESS_ZLE }, 123 { "lz4", ZIO_COMPRESS_LZ4 }, 124 { NULL } 125 }; 126 127 static zprop_index_t crypto_table[] = { 128 { "on", ZIO_CRYPT_ON }, 129 { "off", ZIO_CRYPT_OFF }, 130 { "aes-128-ccm", ZIO_CRYPT_AES_128_CCM }, 131 { "aes-192-ccm", ZIO_CRYPT_AES_192_CCM }, 132 { "aes-256-ccm", ZIO_CRYPT_AES_256_CCM }, 133 { "aes-128-gcm", ZIO_CRYPT_AES_128_GCM }, 134 { "aes-192-gcm", ZIO_CRYPT_AES_192_GCM }, 135 { "aes-256-gcm", ZIO_CRYPT_AES_256_GCM }, 136 { NULL } 137 }; 138 139 static zprop_index_t keyformat_table[] = { 140 { "none", ZFS_KEYFORMAT_NONE }, 141 { "raw", ZFS_KEYFORMAT_RAW }, 142 { "hex", ZFS_KEYFORMAT_HEX }, 143 { "passphrase", ZFS_KEYFORMAT_PASSPHRASE }, 144 { NULL } 145 }; 146 147 static zprop_index_t snapdir_table[] = { 148 { "hidden", ZFS_SNAPDIR_HIDDEN }, 149 { "visible", ZFS_SNAPDIR_VISIBLE }, 150 { NULL } 151 }; 152 153 static zprop_index_t acl_mode_table[] = { 154 { "discard", ZFS_ACL_DISCARD }, 155 { "groupmask", ZFS_ACL_GROUPMASK }, 156 { "passthrough", ZFS_ACL_PASSTHROUGH }, 157 { "restricted", ZFS_ACL_RESTRICTED }, 158 { NULL } 159 }; 160 161 static zprop_index_t acl_inherit_table[] = { 162 { "discard", ZFS_ACL_DISCARD }, 163 { "noallow", ZFS_ACL_NOALLOW }, 164 { "restricted", ZFS_ACL_RESTRICTED }, 165 { "passthrough", ZFS_ACL_PASSTHROUGH }, 166 { "secure", ZFS_ACL_RESTRICTED }, /* bkwrd compatability */ 167 { "passthrough-x", ZFS_ACL_PASSTHROUGH_X }, 168 { NULL } 169 }; 170 171 static zprop_index_t case_table[] = { 172 { "sensitive", ZFS_CASE_SENSITIVE }, 173 { "insensitive", ZFS_CASE_INSENSITIVE }, 174 { "mixed", ZFS_CASE_MIXED }, 175 { NULL } 176 }; 177 178 static zprop_index_t copies_table[] = { 179 { "1", 1 }, 180 { "2", 2 }, 181 { "3", 3 }, 182 { NULL } 183 }; 184 185 /* 186 * Use the unique flags we have to send to u8_strcmp() and/or 187 * u8_textprep() to represent the various normalization property 188 * values. 189 */ 190 static zprop_index_t normalize_table[] = { 191 { "none", 0 }, 192 { "formD", U8_TEXTPREP_NFD }, 193 { "formKC", U8_TEXTPREP_NFKC }, 194 { "formC", U8_TEXTPREP_NFC }, 195 { "formKD", U8_TEXTPREP_NFKD }, 196 { NULL } 197 }; 198 199 static zprop_index_t version_table[] = { 200 { "1", 1 }, 201 { "2", 2 }, 202 { "3", 3 }, 203 { "4", 4 }, 204 { "5", 5 }, 205 { "current", ZPL_VERSION }, 206 { NULL } 207 }; 208 209 static zprop_index_t boolean_table[] = { 210 { "off", 0 }, 211 { "on", 1 }, 212 { NULL } 213 }; 214 215 static zprop_index_t keystatus_table[] = { 216 { "none", ZFS_KEYSTATUS_NONE }, 217 { "unavailable", ZFS_KEYSTATUS_UNAVAILABLE }, 218 { "available", ZFS_KEYSTATUS_AVAILABLE }, 219 { NULL } 220 }; 221 222 static zprop_index_t logbias_table[] = { 223 { "latency", ZFS_LOGBIAS_LATENCY }, 224 { "throughput", ZFS_LOGBIAS_THROUGHPUT }, 225 { NULL } 226 }; 227 228 static zprop_index_t canmount_table[] = { 229 { "off", ZFS_CANMOUNT_OFF }, 230 { "on", ZFS_CANMOUNT_ON }, 231 { "noauto", ZFS_CANMOUNT_NOAUTO }, 232 { NULL } 233 }; 234 235 static zprop_index_t cache_table[] = { 236 { "none", ZFS_CACHE_NONE }, 237 { "metadata", ZFS_CACHE_METADATA }, 238 { "all", ZFS_CACHE_ALL }, 239 { NULL } 240 }; 241 242 static zprop_index_t sync_table[] = { 243 { "standard", ZFS_SYNC_STANDARD }, 244 { "always", ZFS_SYNC_ALWAYS }, 245 { "disabled", ZFS_SYNC_DISABLED }, 246 { NULL } 247 }; 248 249 static zprop_index_t dnsize_table[] = { 250 { "legacy", ZFS_DNSIZE_LEGACY }, 251 { "auto", ZFS_DNSIZE_AUTO }, 252 { "1k", ZFS_DNSIZE_1K }, 253 { "2k", ZFS_DNSIZE_2K }, 254 { "4k", ZFS_DNSIZE_4K }, 255 { "8k", ZFS_DNSIZE_8K }, 256 { "16k", ZFS_DNSIZE_16K }, 257 { NULL } 258 }; 259 260 static zprop_index_t redundant_metadata_table[] = { 261 { "all", ZFS_REDUNDANT_METADATA_ALL }, 262 { "most", ZFS_REDUNDANT_METADATA_MOST }, 263 { NULL } 264 }; 265 266 /* inherit index properties */ 267 zprop_register_index(ZFS_PROP_REDUNDANT_METADATA, "redundant_metadata", 268 ZFS_REDUNDANT_METADATA_ALL, 269 PROP_INHERIT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, 270 "all | most", "REDUND_MD", 271 redundant_metadata_table); 272 zprop_register_index(ZFS_PROP_SYNC, "sync", ZFS_SYNC_STANDARD, 273 PROP_INHERIT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, 274 "standard | always | disabled", "SYNC", 275 sync_table); 276 zprop_register_index(ZFS_PROP_CHECKSUM, "checksum", 277 ZIO_CHECKSUM_DEFAULT, PROP_INHERIT, ZFS_TYPE_FILESYSTEM | 278 ZFS_TYPE_VOLUME, 279 "on | off | fletcher2 | fletcher4 | sha256 | sha512 | " 280 "skein | edonr", "CHECKSUM", checksum_table); 281 zprop_register_index(ZFS_PROP_DEDUP, "dedup", ZIO_CHECKSUM_OFF, 282 PROP_INHERIT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, 283 "on | off | verify | sha256[,verify], sha512[,verify], " 284 "skein[,verify], edonr,verify", "DEDUP", dedup_table); 285 zprop_register_index(ZFS_PROP_COMPRESSION, "compression", 286 ZIO_COMPRESS_DEFAULT, PROP_INHERIT, 287 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, 288 "on | off | lzjb | gzip | gzip-[1-9] | zle | lz4", 289 "COMPRESS", compress_table); 290 zprop_register_index(ZFS_PROP_SNAPDIR, "snapdir", ZFS_SNAPDIR_HIDDEN, 291 PROP_INHERIT, ZFS_TYPE_FILESYSTEM, 292 "hidden | visible", "SNAPDIR", snapdir_table); 293 zprop_register_index(ZFS_PROP_ACLMODE, "aclmode", ZFS_ACL_DISCARD, 294 PROP_INHERIT, ZFS_TYPE_FILESYSTEM, 295 "discard | groupmask | passthrough | restricted", "ACLMODE", 296 acl_mode_table); 297 zprop_register_index(ZFS_PROP_ACLINHERIT, "aclinherit", 298 ZFS_ACL_RESTRICTED, PROP_INHERIT, ZFS_TYPE_FILESYSTEM, 299 "discard | noallow | restricted | passthrough | passthrough-x", 300 "ACLINHERIT", acl_inherit_table); 301 zprop_register_index(ZFS_PROP_COPIES, "copies", 1, PROP_INHERIT, 302 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, 303 "1 | 2 | 3", "COPIES", copies_table); 304 zprop_register_index(ZFS_PROP_PRIMARYCACHE, "primarycache", 305 ZFS_CACHE_ALL, PROP_INHERIT, 306 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT | ZFS_TYPE_VOLUME, 307 "all | none | metadata", "PRIMARYCACHE", cache_table); 308 zprop_register_index(ZFS_PROP_SECONDARYCACHE, "secondarycache", 309 ZFS_CACHE_ALL, PROP_INHERIT, 310 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT | ZFS_TYPE_VOLUME, 311 "all | none | metadata", "SECONDARYCACHE", cache_table); 312 zprop_register_index(ZFS_PROP_LOGBIAS, "logbias", ZFS_LOGBIAS_LATENCY, 313 PROP_INHERIT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, 314 "latency | throughput", "LOGBIAS", logbias_table); 315 316 zprop_register_index(ZFS_PROP_DNODESIZE, "dnodesize", 317 ZFS_DNSIZE_LEGACY, PROP_INHERIT, ZFS_TYPE_FILESYSTEM, 318 "legacy | auto | 1k | 2k | 4k | 8k | 16k", "DNSIZE", dnsize_table); 319 320 /* inherit index (boolean) properties */ 321 zprop_register_index(ZFS_PROP_ATIME, "atime", 1, PROP_INHERIT, 322 ZFS_TYPE_FILESYSTEM, "on | off", "ATIME", boolean_table); 323 zprop_register_index(ZFS_PROP_DEVICES, "devices", 1, PROP_INHERIT, 324 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT, "on | off", "DEVICES", 325 boolean_table); 326 zprop_register_index(ZFS_PROP_EXEC, "exec", 1, PROP_INHERIT, 327 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT, "on | off", "EXEC", 328 boolean_table); 329 zprop_register_index(ZFS_PROP_SETUID, "setuid", 1, PROP_INHERIT, 330 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT, "on | off", "SETUID", 331 boolean_table); 332 zprop_register_index(ZFS_PROP_READONLY, "readonly", 0, PROP_INHERIT, 333 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "on | off", "RDONLY", 334 boolean_table); 335 zprop_register_index(ZFS_PROP_ZONED, "zoned", 0, PROP_INHERIT, 336 ZFS_TYPE_FILESYSTEM, "on | off", "ZONED", boolean_table); 337 zprop_register_index(ZFS_PROP_XATTR, "xattr", 1, PROP_INHERIT, 338 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT, "on | off", "XATTR", 339 boolean_table); 340 zprop_register_index(ZFS_PROP_VSCAN, "vscan", 0, PROP_INHERIT, 341 ZFS_TYPE_FILESYSTEM, "on | off", "VSCAN", 342 boolean_table); 343 zprop_register_index(ZFS_PROP_NBMAND, "nbmand", 0, PROP_INHERIT, 344 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT, "on | off", "NBMAND", 345 boolean_table); 346 347 /* default index properties */ 348 zprop_register_index(ZFS_PROP_VERSION, "version", 0, PROP_DEFAULT, 349 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT, 350 "1 | 2 | 3 | 4 | 5 | current", "VERSION", version_table); 351 zprop_register_index(ZFS_PROP_CANMOUNT, "canmount", ZFS_CANMOUNT_ON, 352 PROP_DEFAULT, ZFS_TYPE_FILESYSTEM, "on | off | noauto", 353 "CANMOUNT", canmount_table); 354 355 /* readonly index properties */ 356 zprop_register_index(ZFS_PROP_MOUNTED, "mounted", 0, PROP_READONLY, 357 ZFS_TYPE_FILESYSTEM, "yes | no", "MOUNTED", boolean_table); 358 zprop_register_index(ZFS_PROP_DEFER_DESTROY, "defer_destroy", 0, 359 PROP_READONLY, ZFS_TYPE_SNAPSHOT, "yes | no", "DEFER_DESTROY", 360 boolean_table); 361 zprop_register_index(ZFS_PROP_KEYSTATUS, "keystatus", 362 ZFS_KEYSTATUS_NONE, PROP_READONLY, ZFS_TYPE_DATASET, 363 "none | unavailable | available", 364 "KEYSTATUS", keystatus_table); 365 366 /* set once index properties */ 367 zprop_register_index(ZFS_PROP_NORMALIZE, "normalization", 0, 368 PROP_ONETIME, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT, 369 "none | formC | formD | formKC | formKD", "NORMALIZATION", 370 normalize_table); 371 zprop_register_index(ZFS_PROP_CASE, "casesensitivity", 372 ZFS_CASE_SENSITIVE, PROP_ONETIME, ZFS_TYPE_FILESYSTEM | 373 ZFS_TYPE_SNAPSHOT, 374 "sensitive | insensitive | mixed", "CASE", case_table); 375 zprop_register_index(ZFS_PROP_KEYFORMAT, "keyformat", 376 ZFS_KEYFORMAT_NONE, PROP_ONETIME_DEFAULT, 377 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, 378 "none | raw | hex | passphrase", "KEYFORMAT", keyformat_table); 379 zprop_register_index(ZFS_PROP_ENCRYPTION, "encryption", 380 ZIO_CRYPT_DEFAULT, PROP_ONETIME, ZFS_TYPE_DATASET, 381 "on | off | aes-128-ccm | aes-192-ccm | aes-256-ccm | " 382 "aes-128-gcm | aes-192-gcm | aes-256-gcm", "ENCRYPTION", 383 crypto_table); 384 385 /* set once index (boolean) properties */ 386 zprop_register_index(ZFS_PROP_UTF8ONLY, "utf8only", 0, PROP_ONETIME, 387 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_SNAPSHOT, 388 "on | off", "UTF8ONLY", boolean_table); 389 390 /* string properties */ 391 zprop_register_string(ZFS_PROP_ORIGIN, "origin", NULL, PROP_READONLY, 392 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "<snapshot>", "ORIGIN"); 393 zprop_register_string(ZFS_PROP_CLONES, "clones", NULL, PROP_READONLY, 394 ZFS_TYPE_SNAPSHOT, "<dataset>[,...]", "CLONES"); 395 zprop_register_string(ZFS_PROP_MOUNTPOINT, "mountpoint", "/", 396 PROP_INHERIT, ZFS_TYPE_FILESYSTEM, "<path> | legacy | none", 397 "MOUNTPOINT"); 398 zprop_register_string(ZFS_PROP_SHARENFS, "sharenfs", "off", 399 PROP_INHERIT, ZFS_TYPE_FILESYSTEM, "on | off | share(8) options", 400 "SHARENFS"); 401 zprop_register_string(ZFS_PROP_TYPE, "type", NULL, PROP_READONLY, 402 ZFS_TYPE_DATASET | ZFS_TYPE_BOOKMARK, 403 "filesystem | volume | snapshot | bookmark", "TYPE"); 404 zprop_register_string(ZFS_PROP_SHARESMB, "sharesmb", "off", 405 PROP_INHERIT, ZFS_TYPE_FILESYSTEM, 406 "on | off | sharemgr(8) options", "SHARESMB"); 407 zprop_register_string(ZFS_PROP_MLSLABEL, "mlslabel", 408 ZFS_MLSLABEL_DEFAULT, PROP_INHERIT, ZFS_TYPE_DATASET, 409 "<sensitivity label>", "MLSLABEL"); 410 zprop_register_string(ZFS_PROP_RECEIVE_RESUME_TOKEN, 411 "receive_resume_token", 412 NULL, PROP_READONLY, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, 413 "<string token>", "RESUMETOK"); 414 zprop_register_string(ZFS_PROP_ENCRYPTION_ROOT, "encryptionroot", NULL, 415 PROP_READONLY, ZFS_TYPE_DATASET, "<filesystem | volume>", 416 "ENCROOT"); 417 zprop_register_string(ZFS_PROP_KEYLOCATION, "keylocation", 418 "none", PROP_DEFAULT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, 419 "prompt | <file URI>", "KEYLOCATION"); 420 421 /* readonly number properties */ 422 zprop_register_number(ZFS_PROP_USED, "used", 0, PROP_READONLY, 423 ZFS_TYPE_DATASET, "<size>", "USED"); 424 zprop_register_number(ZFS_PROP_AVAILABLE, "available", 0, PROP_READONLY, 425 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "<size>", "AVAIL"); 426 zprop_register_number(ZFS_PROP_REFERENCED, "referenced", 0, 427 PROP_READONLY, ZFS_TYPE_DATASET, "<size>", "REFER"); 428 zprop_register_number(ZFS_PROP_COMPRESSRATIO, "compressratio", 0, 429 PROP_READONLY, ZFS_TYPE_DATASET, 430 "<1.00x or higher if compressed>", "RATIO"); 431 zprop_register_number(ZFS_PROP_REFRATIO, "refcompressratio", 0, 432 PROP_READONLY, ZFS_TYPE_DATASET, 433 "<1.00x or higher if compressed>", "REFRATIO"); 434 zprop_register_number(ZFS_PROP_VOLBLOCKSIZE, "volblocksize", 435 ZVOL_DEFAULT_BLOCKSIZE, PROP_ONETIME, 436 ZFS_TYPE_VOLUME, "512 to 128k, power of 2", "VOLBLOCK"); 437 zprop_register_number(ZFS_PROP_USEDSNAP, "usedbysnapshots", 0, 438 PROP_READONLY, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "<size>", 439 "USEDSNAP"); 440 zprop_register_number(ZFS_PROP_USEDDS, "usedbydataset", 0, 441 PROP_READONLY, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "<size>", 442 "USEDDS"); 443 zprop_register_number(ZFS_PROP_USEDCHILD, "usedbychildren", 0, 444 PROP_READONLY, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "<size>", 445 "USEDCHILD"); 446 zprop_register_number(ZFS_PROP_USEDREFRESERV, "usedbyrefreservation", 0, 447 PROP_READONLY, 448 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "<size>", "USEDREFRESERV"); 449 zprop_register_number(ZFS_PROP_USERREFS, "userrefs", 0, PROP_READONLY, 450 ZFS_TYPE_SNAPSHOT, "<count>", "USERREFS"); 451 zprop_register_number(ZFS_PROP_WRITTEN, "written", 0, PROP_READONLY, 452 ZFS_TYPE_DATASET, "<size>", "WRITTEN"); 453 zprop_register_number(ZFS_PROP_LOGICALUSED, "logicalused", 0, 454 PROP_READONLY, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "<size>", 455 "LUSED"); 456 zprop_register_number(ZFS_PROP_LOGICALREFERENCED, "logicalreferenced", 457 0, PROP_READONLY, ZFS_TYPE_DATASET, "<size>", "LREFER"); 458 zprop_register_number(ZFS_PROP_FILESYSTEM_COUNT, "filesystem_count", 459 UINT64_MAX, PROP_READONLY, ZFS_TYPE_FILESYSTEM, 460 "<count>", "FSCOUNT"); 461 zprop_register_number(ZFS_PROP_SNAPSHOT_COUNT, "snapshot_count", 462 UINT64_MAX, PROP_READONLY, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, 463 "<count>", "SSCOUNT"); 464 zprop_register_number(ZFS_PROP_GUID, "guid", 0, PROP_READONLY, 465 ZFS_TYPE_DATASET | ZFS_TYPE_BOOKMARK, "<uint64>", "GUID"); 466 zprop_register_number(ZFS_PROP_CREATETXG, "createtxg", 0, PROP_READONLY, 467 ZFS_TYPE_DATASET | ZFS_TYPE_BOOKMARK, "<uint64>", "CREATETXG"); 468 zprop_register_number(ZFS_PROP_PBKDF2_ITERS, "pbkdf2iters", 469 0, PROP_ONETIME_DEFAULT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, 470 "<iters>", "PBKDF2ITERS"); 471 472 /* default number properties */ 473 zprop_register_number(ZFS_PROP_QUOTA, "quota", 0, PROP_DEFAULT, 474 ZFS_TYPE_FILESYSTEM, "<size> | none", "QUOTA"); 475 zprop_register_number(ZFS_PROP_RESERVATION, "reservation", 0, 476 PROP_DEFAULT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, 477 "<size> | none", "RESERV"); 478 zprop_register_number(ZFS_PROP_VOLSIZE, "volsize", 0, PROP_DEFAULT, 479 ZFS_TYPE_VOLUME, "<size>", "VOLSIZE"); 480 zprop_register_number(ZFS_PROP_REFQUOTA, "refquota", 0, PROP_DEFAULT, 481 ZFS_TYPE_FILESYSTEM, "<size> | none", "REFQUOTA"); 482 zprop_register_number(ZFS_PROP_REFRESERVATION, "refreservation", 0, 483 PROP_DEFAULT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, 484 "<size> | none", "REFRESERV"); 485 zprop_register_number(ZFS_PROP_FILESYSTEM_LIMIT, "filesystem_limit", 486 UINT64_MAX, PROP_DEFAULT, ZFS_TYPE_FILESYSTEM, 487 "<count> | none", "FSLIMIT"); 488 zprop_register_number(ZFS_PROP_SNAPSHOT_LIMIT, "snapshot_limit", 489 UINT64_MAX, PROP_DEFAULT, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, 490 "<count> | none", "SSLIMIT"); 491 492 /* inherit number properties */ 493 zprop_register_number(ZFS_PROP_RECORDSIZE, "recordsize", 494 SPA_OLD_MAXBLOCKSIZE, PROP_INHERIT, 495 ZFS_TYPE_FILESYSTEM, "512 to 1M, power of 2", "RECSIZE"); 496 zprop_register_number(ZFS_PROP_SPECIAL_SMALL_BLOCKS, 497 "special_small_blocks", 0, PROP_INHERIT, ZFS_TYPE_FILESYSTEM, 498 "zero or 512 to 128K, power of 2", "SPECIAL_SMALL_BLOCKS"); 499 500 /* hidden properties */ 501 zprop_register_hidden(ZFS_PROP_REMAPTXG, "remaptxg", PROP_TYPE_NUMBER, 502 PROP_READONLY, ZFS_TYPE_DATASET, "REMAPTXG"); 503 zprop_register_hidden(ZFS_PROP_NUMCLONES, "numclones", PROP_TYPE_NUMBER, 504 PROP_READONLY, ZFS_TYPE_SNAPSHOT, "NUMCLONES"); 505 zprop_register_hidden(ZFS_PROP_NAME, "name", PROP_TYPE_STRING, 506 PROP_READONLY, ZFS_TYPE_DATASET | ZFS_TYPE_BOOKMARK, "NAME"); 507 zprop_register_hidden(ZFS_PROP_ISCSIOPTIONS, "iscsioptions", 508 PROP_TYPE_STRING, PROP_INHERIT, ZFS_TYPE_VOLUME, "ISCSIOPTIONS"); 509 zprop_register_hidden(ZFS_PROP_STMF_SHAREINFO, "stmf_sbd_lu", 510 PROP_TYPE_STRING, PROP_INHERIT, ZFS_TYPE_VOLUME, 511 "STMF_SBD_LU"); 512 zprop_register_hidden(ZFS_PROP_USERACCOUNTING, "useraccounting", 513 PROP_TYPE_NUMBER, PROP_READONLY, ZFS_TYPE_DATASET, 514 "USERACCOUNTING"); 515 zprop_register_hidden(ZFS_PROP_UNIQUE, "unique", PROP_TYPE_NUMBER, 516 PROP_READONLY, ZFS_TYPE_DATASET, "UNIQUE"); 517 zprop_register_hidden(ZFS_PROP_OBJSETID, "objsetid", PROP_TYPE_NUMBER, 518 PROP_READONLY, ZFS_TYPE_DATASET, "OBJSETID"); 519 zprop_register_hidden(ZFS_PROP_INCONSISTENT, "inconsistent", 520 PROP_TYPE_NUMBER, PROP_READONLY, ZFS_TYPE_DATASET, "INCONSISTENT"); 521 zprop_register_hidden(ZFS_PROP_IVSET_GUID, "ivsetguid", 522 PROP_TYPE_NUMBER, PROP_READONLY, 523 ZFS_TYPE_DATASET | ZFS_TYPE_BOOKMARK, "IVSETGUID"); 524 zprop_register_hidden(ZFS_PROP_PREV_SNAP, "prevsnap", PROP_TYPE_STRING, 525 PROP_READONLY, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "PREVSNAP"); 526 zprop_register_hidden(ZFS_PROP_PBKDF2_SALT, "pbkdf2salt", 527 PROP_TYPE_NUMBER, PROP_ONETIME_DEFAULT, 528 ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "PBKDF2SALT"); 529 zprop_register_hidden(ZFS_PROP_KEY_GUID, "keyguid", PROP_TYPE_NUMBER, 530 PROP_READONLY, ZFS_TYPE_DATASET, "KEYGUID"); 531 532 /* oddball properties */ 533 zprop_register_impl(ZFS_PROP_CREATION, "creation", PROP_TYPE_NUMBER, 0, 534 NULL, PROP_READONLY, ZFS_TYPE_DATASET | ZFS_TYPE_BOOKMARK, 535 "<date>", "CREATION", B_FALSE, B_TRUE, NULL); 536 } 537 538 boolean_t 539 zfs_prop_delegatable(zfs_prop_t prop) 540 { 541 zprop_desc_t *pd = &zfs_prop_table[prop]; 542 543 /* The mlslabel property is never delegatable. */ 544 if (prop == ZFS_PROP_MLSLABEL) 545 return (B_FALSE); 546 547 return (pd->pd_attr != PROP_READONLY); 548 } 549 550 /* 551 * Given a zfs dataset property name, returns the corresponding property ID. 552 */ 553 zfs_prop_t 554 zfs_name_to_prop(const char *propname) 555 { 556 return (zprop_name_to_prop(propname, ZFS_TYPE_DATASET)); 557 } 558 559 /* 560 * For user property names, we allow all lowercase alphanumeric characters, plus 561 * a few useful punctuation characters. 562 */ 563 static int 564 valid_char(char c) 565 { 566 return ((c >= 'a' && c <= 'z') || 567 (c >= '0' && c <= '9') || 568 c == '-' || c == '_' || c == '.' || c == ':'); 569 } 570 571 /* 572 * Returns true if this is a valid user-defined property (one with a ':'). 573 */ 574 boolean_t 575 zfs_prop_user(const char *name) 576 { 577 int i; 578 char c; 579 boolean_t foundsep = B_FALSE; 580 581 for (i = 0; i < strlen(name); i++) { 582 c = name[i]; 583 if (!valid_char(c)) 584 return (B_FALSE); 585 if (c == ':') 586 foundsep = B_TRUE; 587 } 588 589 if (!foundsep) 590 return (B_FALSE); 591 592 return (B_TRUE); 593 } 594 595 /* 596 * Returns true if this is a valid userspace-type property (one with a '@'). 597 * Note that after the @, any character is valid (eg, another @, for SID 598 * user@domain). 599 */ 600 boolean_t 601 zfs_prop_userquota(const char *name) 602 { 603 zfs_userquota_prop_t prop; 604 605 for (prop = 0; prop < ZFS_NUM_USERQUOTA_PROPS; prop++) { 606 if (strncmp(name, zfs_userquota_prop_prefixes[prop], 607 strlen(zfs_userquota_prop_prefixes[prop])) == 0) { 608 return (B_TRUE); 609 } 610 } 611 612 return (B_FALSE); 613 } 614 615 /* 616 * Returns true if this is a valid written@ property. 617 * Note that after the @, any character is valid (eg, another @, for 618 * written@pool/fs@origin). 619 */ 620 boolean_t 621 zfs_prop_written(const char *name) 622 { 623 static const char *prefix = "written@"; 624 return (strncmp(name, prefix, strlen(prefix)) == 0); 625 } 626 627 /* 628 * Tables of index types, plus functions to convert between the user view 629 * (strings) and internal representation (uint64_t). 630 */ 631 int 632 zfs_prop_string_to_index(zfs_prop_t prop, const char *string, uint64_t *index) 633 { 634 return (zprop_string_to_index(prop, string, index, ZFS_TYPE_DATASET)); 635 } 636 637 int 638 zfs_prop_index_to_string(zfs_prop_t prop, uint64_t index, const char **string) 639 { 640 return (zprop_index_to_string(prop, index, string, ZFS_TYPE_DATASET)); 641 } 642 643 uint64_t 644 zfs_prop_random_value(zfs_prop_t prop, uint64_t seed) 645 { 646 return (zprop_random_value(prop, seed, ZFS_TYPE_DATASET)); 647 } 648 649 /* 650 * Returns TRUE if the property applies to any of the given dataset types. 651 */ 652 boolean_t 653 zfs_prop_valid_for_type(int prop, zfs_type_t types) 654 { 655 return (zprop_valid_for_type(prop, types)); 656 } 657 658 zprop_type_t 659 zfs_prop_get_type(zfs_prop_t prop) 660 { 661 return (zfs_prop_table[prop].pd_proptype); 662 } 663 664 /* 665 * Returns TRUE if the property is readonly. 666 */ 667 boolean_t 668 zfs_prop_readonly(zfs_prop_t prop) 669 { 670 return (zfs_prop_table[prop].pd_attr == PROP_READONLY || 671 zfs_prop_table[prop].pd_attr == PROP_ONETIME || 672 zfs_prop_table[prop].pd_attr == PROP_ONETIME_DEFAULT); 673 } 674 675 /* 676 * Returns TRUE if the property is visible (not hidden). 677 */ 678 boolean_t 679 zfs_prop_visible(zfs_prop_t prop) 680 { 681 return (zfs_prop_table[prop].pd_visible); 682 } 683 684 /* 685 * Returns TRUE if the property is only allowed to be set once. 686 */ 687 boolean_t 688 zfs_prop_setonce(zfs_prop_t prop) 689 { 690 return (zfs_prop_table[prop].pd_attr == PROP_ONETIME || 691 zfs_prop_table[prop].pd_attr == PROP_ONETIME_DEFAULT); 692 } 693 694 const char * 695 zfs_prop_default_string(zfs_prop_t prop) 696 { 697 return (zfs_prop_table[prop].pd_strdefault); 698 } 699 700 uint64_t 701 zfs_prop_default_numeric(zfs_prop_t prop) 702 { 703 return (zfs_prop_table[prop].pd_numdefault); 704 } 705 706 /* 707 * Given a dataset property ID, returns the corresponding name. 708 * Assuming the zfs dataset property ID is valid. 709 */ 710 const char * 711 zfs_prop_to_name(zfs_prop_t prop) 712 { 713 return (zfs_prop_table[prop].pd_name); 714 } 715 716 /* 717 * Returns TRUE if the property is inheritable. 718 */ 719 boolean_t 720 zfs_prop_inheritable(zfs_prop_t prop) 721 { 722 return (zfs_prop_table[prop].pd_attr == PROP_INHERIT || 723 zfs_prop_table[prop].pd_attr == PROP_ONETIME); 724 } 725 726 /* 727 * Returns TRUE if property is one of the encryption properties that requires 728 * a loaded encryption key to modify. 729 */ 730 boolean_t 731 zfs_prop_encryption_key_param(zfs_prop_t prop) 732 { 733 /* 734 * keylocation does not count as an encryption property. It can be 735 * changed at will without needing the master keys. 736 */ 737 return (prop == ZFS_PROP_PBKDF2_SALT || prop == ZFS_PROP_PBKDF2_ITERS || 738 prop == ZFS_PROP_KEYFORMAT); 739 } 740 741 /* 742 * Helper function used by both kernelspace and userspace to check the 743 * keylocation property. If encrypted is set, the keylocation must be valid 744 * for an encrypted dataset. 745 */ 746 boolean_t 747 zfs_prop_valid_keylocation(const char *str, boolean_t encrypted) 748 { 749 if (strcmp("none", str) == 0) 750 return (!encrypted); 751 else if (strcmp("prompt", str) == 0) 752 return (B_TRUE); 753 else if (strlen(str) > 8 && strncmp("file:///", str, 8) == 0) 754 return (B_TRUE); 755 756 return (B_FALSE); 757 } 758 759 760 #ifndef _KERNEL 761 762 /* 763 * Returns a string describing the set of acceptable values for the given 764 * zfs property, or NULL if it cannot be set. 765 */ 766 const char * 767 zfs_prop_values(zfs_prop_t prop) 768 { 769 return (zfs_prop_table[prop].pd_values); 770 } 771 772 /* 773 * Returns TRUE if this property is a string type. Note that index types 774 * (compression, checksum) are treated as strings in userland, even though they 775 * are stored numerically on disk. 776 */ 777 int 778 zfs_prop_is_string(zfs_prop_t prop) 779 { 780 return (zfs_prop_table[prop].pd_proptype == PROP_TYPE_STRING || 781 zfs_prop_table[prop].pd_proptype == PROP_TYPE_INDEX); 782 } 783 784 /* 785 * Returns the column header for the given property. Used only in 786 * 'zfs list -o', but centralized here with the other property information. 787 */ 788 const char * 789 zfs_prop_column_name(zfs_prop_t prop) 790 { 791 return (zfs_prop_table[prop].pd_colname); 792 } 793 794 /* 795 * Returns whether the given property should be displayed right-justified for 796 * 'zfs list'. 797 */ 798 boolean_t 799 zfs_prop_align_right(zfs_prop_t prop) 800 { 801 return (zfs_prop_table[prop].pd_rightalign); 802 } 803 804 #endif 805