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 /* 23 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. 24 * Copyright (c) 2011, 2016 by Delphix. All rights reserved. 25 * Copyright 2011 Nexenta Systems, Inc. All rights reserved. 26 * Copyright (c) 2014 Integros [integros.com] 27 * Copyright 2017 Joyent, Inc. 28 * Copyright (c) 2017 Datto Inc. 29 */ 30 31 /* Portions Copyright 2010 Robert Milkowski */ 32 33 #ifndef _SYS_FS_ZFS_H 34 #define _SYS_FS_ZFS_H 35 36 #include <sys/time.h> 37 38 #ifdef __cplusplus 39 extern "C" { 40 #endif 41 42 /* 43 * Types and constants shared between userland and the kernel. 44 */ 45 46 /* 47 * Each dataset can be one of the following types. These constants can be 48 * combined into masks that can be passed to various functions. 49 */ 50 typedef enum { 51 ZFS_TYPE_FILESYSTEM = (1 << 0), 52 ZFS_TYPE_SNAPSHOT = (1 << 1), 53 ZFS_TYPE_VOLUME = (1 << 2), 54 ZFS_TYPE_POOL = (1 << 3), 55 ZFS_TYPE_BOOKMARK = (1 << 4) 56 } zfs_type_t; 57 58 /* 59 * NB: lzc_dataset_type should be updated whenever a new objset type is added, 60 * if it represents a real type of a dataset that can be created from userland. 61 */ 62 typedef enum dmu_objset_type { 63 DMU_OST_NONE, 64 DMU_OST_META, 65 DMU_OST_ZFS, 66 DMU_OST_ZVOL, 67 DMU_OST_OTHER, /* For testing only! */ 68 DMU_OST_ANY, /* Be careful! */ 69 DMU_OST_NUMTYPES 70 } dmu_objset_type_t; 71 72 #define ZFS_TYPE_DATASET \ 73 (ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME | ZFS_TYPE_SNAPSHOT) 74 75 /* 76 * All of these include the terminating NUL byte. 77 */ 78 #define ZAP_MAXNAMELEN 256 79 #define ZAP_MAXVALUELEN (1024 * 8) 80 #define ZAP_OLDMAXVALUELEN 1024 81 #define ZFS_MAX_DATASET_NAME_LEN 256 82 83 /* 84 * Dataset properties are identified by these constants and must be added to 85 * the end of this list to ensure that external consumers are not affected 86 * by the change. If you make any changes to this list, be sure to update 87 * the property table in usr/src/common/zfs/zfs_prop.c. 88 */ 89 typedef enum { 90 ZFS_PROP_BAD = -1, 91 ZFS_PROP_TYPE = 0, 92 ZFS_PROP_CREATION, 93 ZFS_PROP_USED, 94 ZFS_PROP_AVAILABLE, 95 ZFS_PROP_REFERENCED, 96 ZFS_PROP_COMPRESSRATIO, 97 ZFS_PROP_MOUNTED, 98 ZFS_PROP_ORIGIN, 99 ZFS_PROP_QUOTA, 100 ZFS_PROP_RESERVATION, 101 ZFS_PROP_VOLSIZE, 102 ZFS_PROP_VOLBLOCKSIZE, 103 ZFS_PROP_RECORDSIZE, 104 ZFS_PROP_MOUNTPOINT, 105 ZFS_PROP_SHARENFS, 106 ZFS_PROP_CHECKSUM, 107 ZFS_PROP_COMPRESSION, 108 ZFS_PROP_ATIME, 109 ZFS_PROP_DEVICES, 110 ZFS_PROP_EXEC, 111 ZFS_PROP_SETUID, 112 ZFS_PROP_READONLY, 113 ZFS_PROP_ZONED, 114 ZFS_PROP_SNAPDIR, 115 ZFS_PROP_ACLMODE, 116 ZFS_PROP_ACLINHERIT, 117 ZFS_PROP_CREATETXG, /* not exposed to the user */ 118 ZFS_PROP_NAME, /* not exposed to the user */ 119 ZFS_PROP_CANMOUNT, 120 ZFS_PROP_ISCSIOPTIONS, /* not exposed to the user */ 121 ZFS_PROP_XATTR, 122 ZFS_PROP_NUMCLONES, /* not exposed to the user */ 123 ZFS_PROP_COPIES, 124 ZFS_PROP_VERSION, 125 ZFS_PROP_UTF8ONLY, 126 ZFS_PROP_NORMALIZE, 127 ZFS_PROP_CASE, 128 ZFS_PROP_VSCAN, 129 ZFS_PROP_NBMAND, 130 ZFS_PROP_SHARESMB, 131 ZFS_PROP_REFQUOTA, 132 ZFS_PROP_REFRESERVATION, 133 ZFS_PROP_GUID, 134 ZFS_PROP_PRIMARYCACHE, 135 ZFS_PROP_SECONDARYCACHE, 136 ZFS_PROP_USEDSNAP, 137 ZFS_PROP_USEDDS, 138 ZFS_PROP_USEDCHILD, 139 ZFS_PROP_USEDREFRESERV, 140 ZFS_PROP_USERACCOUNTING, /* not exposed to the user */ 141 ZFS_PROP_STMF_SHAREINFO, /* not exposed to the user */ 142 ZFS_PROP_DEFER_DESTROY, 143 ZFS_PROP_USERREFS, 144 ZFS_PROP_LOGBIAS, 145 ZFS_PROP_UNIQUE, /* not exposed to the user */ 146 ZFS_PROP_OBJSETID, /* not exposed to the user */ 147 ZFS_PROP_DEDUP, 148 ZFS_PROP_MLSLABEL, 149 ZFS_PROP_SYNC, 150 ZFS_PROP_REFRATIO, 151 ZFS_PROP_WRITTEN, 152 ZFS_PROP_CLONES, 153 ZFS_PROP_LOGICALUSED, 154 ZFS_PROP_LOGICALREFERENCED, 155 ZFS_PROP_INCONSISTENT, /* not exposed to the user */ 156 ZFS_PROP_FILESYSTEM_LIMIT, 157 ZFS_PROP_SNAPSHOT_LIMIT, 158 ZFS_PROP_FILESYSTEM_COUNT, 159 ZFS_PROP_SNAPSHOT_COUNT, 160 ZFS_PROP_REDUNDANT_METADATA, 161 ZFS_PROP_PREV_SNAP, 162 ZFS_PROP_RECEIVE_RESUME_TOKEN, 163 ZFS_NUM_PROPS 164 } zfs_prop_t; 165 166 typedef enum { 167 ZFS_PROP_USERUSED, 168 ZFS_PROP_USERQUOTA, 169 ZFS_PROP_GROUPUSED, 170 ZFS_PROP_GROUPQUOTA, 171 ZFS_NUM_USERQUOTA_PROPS 172 } zfs_userquota_prop_t; 173 174 extern const char *zfs_userquota_prop_prefixes[ZFS_NUM_USERQUOTA_PROPS]; 175 176 /* 177 * Pool properties are identified by these constants and must be added to the 178 * end of this list to ensure that external consumers are not affected 179 * by the change. If you make any changes to this list, be sure to update 180 * the property table in usr/src/common/zfs/zpool_prop.c. 181 */ 182 typedef enum { 183 ZPOOL_PROP_NAME, 184 ZPOOL_PROP_SIZE, 185 ZPOOL_PROP_CAPACITY, 186 ZPOOL_PROP_ALTROOT, 187 ZPOOL_PROP_HEALTH, 188 ZPOOL_PROP_GUID, 189 ZPOOL_PROP_VERSION, 190 ZPOOL_PROP_BOOTFS, 191 ZPOOL_PROP_DELEGATION, 192 ZPOOL_PROP_AUTOREPLACE, 193 ZPOOL_PROP_CACHEFILE, 194 ZPOOL_PROP_FAILUREMODE, 195 ZPOOL_PROP_LISTSNAPS, 196 ZPOOL_PROP_AUTOEXPAND, 197 ZPOOL_PROP_DEDUPDITTO, 198 ZPOOL_PROP_DEDUPRATIO, 199 ZPOOL_PROP_FREE, 200 ZPOOL_PROP_ALLOCATED, 201 ZPOOL_PROP_READONLY, 202 ZPOOL_PROP_COMMENT, 203 ZPOOL_PROP_EXPANDSZ, 204 ZPOOL_PROP_FREEING, 205 ZPOOL_PROP_FRAGMENTATION, 206 ZPOOL_PROP_LEAKED, 207 ZPOOL_PROP_MAXBLOCKSIZE, 208 ZPOOL_PROP_BOOTSIZE, 209 ZPOOL_NUM_PROPS 210 } zpool_prop_t; 211 212 /* Small enough to not hog a whole line of printout in zpool(1M). */ 213 #define ZPROP_MAX_COMMENT 32 214 215 #define ZPROP_CONT -2 216 #define ZPROP_INVAL -1 217 218 #define ZPROP_VALUE "value" 219 #define ZPROP_SOURCE "source" 220 221 typedef enum { 222 ZPROP_SRC_NONE = 0x1, 223 ZPROP_SRC_DEFAULT = 0x2, 224 ZPROP_SRC_TEMPORARY = 0x4, 225 ZPROP_SRC_LOCAL = 0x8, 226 ZPROP_SRC_INHERITED = 0x10, 227 ZPROP_SRC_RECEIVED = 0x20 228 } zprop_source_t; 229 230 #define ZPROP_SRC_ALL 0x3f 231 232 #define ZPROP_SOURCE_VAL_RECVD "$recvd" 233 #define ZPROP_N_MORE_ERRORS "N_MORE_ERRORS" 234 /* 235 * Dataset flag implemented as a special entry in the props zap object 236 * indicating that the dataset has received properties on or after 237 * SPA_VERSION_RECVD_PROPS. The first such receive blows away local properties 238 * just as it did in earlier versions, and thereafter, local properties are 239 * preserved. 240 */ 241 #define ZPROP_HAS_RECVD "$hasrecvd" 242 243 typedef enum { 244 ZPROP_ERR_NOCLEAR = 0x1, /* failure to clear existing props */ 245 ZPROP_ERR_NORESTORE = 0x2 /* failure to restore props on error */ 246 } zprop_errflags_t; 247 248 typedef int (*zprop_func)(int, void *); 249 250 /* 251 * Properties to be set on the root file system of a new pool 252 * are stuffed into their own nvlist, which is then included in 253 * the properties nvlist with the pool properties. 254 */ 255 #define ZPOOL_ROOTFS_PROPS "root-props-nvl" 256 257 /* 258 * Length of 'written@' and 'written#' 259 */ 260 #define ZFS_WRITTEN_PROP_PREFIX_LEN 8 261 262 /* 263 * Dataset property functions shared between libzfs and kernel. 264 */ 265 const char *zfs_prop_default_string(zfs_prop_t); 266 uint64_t zfs_prop_default_numeric(zfs_prop_t); 267 boolean_t zfs_prop_readonly(zfs_prop_t); 268 boolean_t zfs_prop_visible(zfs_prop_t prop); 269 boolean_t zfs_prop_inheritable(zfs_prop_t); 270 boolean_t zfs_prop_setonce(zfs_prop_t); 271 const char *zfs_prop_to_name(zfs_prop_t); 272 zfs_prop_t zfs_name_to_prop(const char *); 273 boolean_t zfs_prop_user(const char *); 274 boolean_t zfs_prop_userquota(const char *); 275 boolean_t zfs_prop_written(const char *); 276 int zfs_prop_index_to_string(zfs_prop_t, uint64_t, const char **); 277 int zfs_prop_string_to_index(zfs_prop_t, const char *, uint64_t *); 278 uint64_t zfs_prop_random_value(zfs_prop_t, uint64_t seed); 279 boolean_t zfs_prop_valid_for_type(int, zfs_type_t); 280 281 /* 282 * Pool property functions shared between libzfs and kernel. 283 */ 284 zpool_prop_t zpool_name_to_prop(const char *); 285 const char *zpool_prop_to_name(zpool_prop_t); 286 const char *zpool_prop_default_string(zpool_prop_t); 287 uint64_t zpool_prop_default_numeric(zpool_prop_t); 288 boolean_t zpool_prop_readonly(zpool_prop_t); 289 boolean_t zpool_prop_feature(const char *); 290 boolean_t zpool_prop_unsupported(const char *name); 291 int zpool_prop_index_to_string(zpool_prop_t, uint64_t, const char **); 292 int zpool_prop_string_to_index(zpool_prop_t, const char *, uint64_t *); 293 uint64_t zpool_prop_random_value(zpool_prop_t, uint64_t seed); 294 295 /* 296 * Definitions for the Delegation. 297 */ 298 typedef enum { 299 ZFS_DELEG_WHO_UNKNOWN = 0, 300 ZFS_DELEG_USER = 'u', 301 ZFS_DELEG_USER_SETS = 'U', 302 ZFS_DELEG_GROUP = 'g', 303 ZFS_DELEG_GROUP_SETS = 'G', 304 ZFS_DELEG_EVERYONE = 'e', 305 ZFS_DELEG_EVERYONE_SETS = 'E', 306 ZFS_DELEG_CREATE = 'c', 307 ZFS_DELEG_CREATE_SETS = 'C', 308 ZFS_DELEG_NAMED_SET = 's', 309 ZFS_DELEG_NAMED_SET_SETS = 'S' 310 } zfs_deleg_who_type_t; 311 312 typedef enum { 313 ZFS_DELEG_NONE = 0, 314 ZFS_DELEG_PERM_LOCAL = 1, 315 ZFS_DELEG_PERM_DESCENDENT = 2, 316 ZFS_DELEG_PERM_LOCALDESCENDENT = 3, 317 ZFS_DELEG_PERM_CREATE = 4 318 } zfs_deleg_inherit_t; 319 320 #define ZFS_DELEG_PERM_UID "uid" 321 #define ZFS_DELEG_PERM_GID "gid" 322 #define ZFS_DELEG_PERM_GROUPS "groups" 323 324 #define ZFS_MLSLABEL_DEFAULT "none" 325 326 #define ZFS_SMB_ACL_SRC "src" 327 #define ZFS_SMB_ACL_TARGET "target" 328 329 typedef enum { 330 ZFS_CANMOUNT_OFF = 0, 331 ZFS_CANMOUNT_ON = 1, 332 ZFS_CANMOUNT_NOAUTO = 2 333 } zfs_canmount_type_t; 334 335 typedef enum { 336 ZFS_LOGBIAS_LATENCY = 0, 337 ZFS_LOGBIAS_THROUGHPUT = 1 338 } zfs_logbias_op_t; 339 340 typedef enum zfs_share_op { 341 ZFS_SHARE_NFS = 0, 342 ZFS_UNSHARE_NFS = 1, 343 ZFS_SHARE_SMB = 2, 344 ZFS_UNSHARE_SMB = 3 345 } zfs_share_op_t; 346 347 typedef enum zfs_smb_acl_op { 348 ZFS_SMB_ACL_ADD, 349 ZFS_SMB_ACL_REMOVE, 350 ZFS_SMB_ACL_RENAME, 351 ZFS_SMB_ACL_PURGE 352 } zfs_smb_acl_op_t; 353 354 typedef enum zfs_cache_type { 355 ZFS_CACHE_NONE = 0, 356 ZFS_CACHE_METADATA = 1, 357 ZFS_CACHE_ALL = 2 358 } zfs_cache_type_t; 359 360 typedef enum { 361 ZFS_SYNC_STANDARD = 0, 362 ZFS_SYNC_ALWAYS = 1, 363 ZFS_SYNC_DISABLED = 2 364 } zfs_sync_type_t; 365 366 typedef enum { 367 ZFS_REDUNDANT_METADATA_ALL, 368 ZFS_REDUNDANT_METADATA_MOST 369 } zfs_redundant_metadata_type_t; 370 371 /* 372 * On-disk version number. 373 */ 374 #define SPA_VERSION_1 1ULL 375 #define SPA_VERSION_2 2ULL 376 #define SPA_VERSION_3 3ULL 377 #define SPA_VERSION_4 4ULL 378 #define SPA_VERSION_5 5ULL 379 #define SPA_VERSION_6 6ULL 380 #define SPA_VERSION_7 7ULL 381 #define SPA_VERSION_8 8ULL 382 #define SPA_VERSION_9 9ULL 383 #define SPA_VERSION_10 10ULL 384 #define SPA_VERSION_11 11ULL 385 #define SPA_VERSION_12 12ULL 386 #define SPA_VERSION_13 13ULL 387 #define SPA_VERSION_14 14ULL 388 #define SPA_VERSION_15 15ULL 389 #define SPA_VERSION_16 16ULL 390 #define SPA_VERSION_17 17ULL 391 #define SPA_VERSION_18 18ULL 392 #define SPA_VERSION_19 19ULL 393 #define SPA_VERSION_20 20ULL 394 #define SPA_VERSION_21 21ULL 395 #define SPA_VERSION_22 22ULL 396 #define SPA_VERSION_23 23ULL 397 #define SPA_VERSION_24 24ULL 398 #define SPA_VERSION_25 25ULL 399 #define SPA_VERSION_26 26ULL 400 #define SPA_VERSION_27 27ULL 401 #define SPA_VERSION_28 28ULL 402 #define SPA_VERSION_5000 5000ULL 403 404 /* 405 * When bumping up SPA_VERSION, make sure GRUB ZFS understands the on-disk 406 * format change. Go to usr/src/grub/grub-0.97/stage2/{zfs-include/, fsys_zfs*}, 407 * and do the appropriate changes. Also bump the version number in 408 * usr/src/grub/capability. 409 */ 410 #define SPA_VERSION SPA_VERSION_5000 411 #define SPA_VERSION_STRING "5000" 412 413 /* 414 * Symbolic names for the changes that caused a SPA_VERSION switch. 415 * Used in the code when checking for presence or absence of a feature. 416 * Feel free to define multiple symbolic names for each version if there 417 * were multiple changes to on-disk structures during that version. 418 * 419 * NOTE: When checking the current SPA_VERSION in your code, be sure 420 * to use spa_version() since it reports the version of the 421 * last synced uberblock. Checking the in-flight version can 422 * be dangerous in some cases. 423 */ 424 #define SPA_VERSION_INITIAL SPA_VERSION_1 425 #define SPA_VERSION_DITTO_BLOCKS SPA_VERSION_2 426 #define SPA_VERSION_SPARES SPA_VERSION_3 427 #define SPA_VERSION_RAIDZ2 SPA_VERSION_3 428 #define SPA_VERSION_BPOBJ_ACCOUNT SPA_VERSION_3 429 #define SPA_VERSION_RAIDZ_DEFLATE SPA_VERSION_3 430 #define SPA_VERSION_DNODE_BYTES SPA_VERSION_3 431 #define SPA_VERSION_ZPOOL_HISTORY SPA_VERSION_4 432 #define SPA_VERSION_GZIP_COMPRESSION SPA_VERSION_5 433 #define SPA_VERSION_BOOTFS SPA_VERSION_6 434 #define SPA_VERSION_SLOGS SPA_VERSION_7 435 #define SPA_VERSION_DELEGATED_PERMS SPA_VERSION_8 436 #define SPA_VERSION_FUID SPA_VERSION_9 437 #define SPA_VERSION_REFRESERVATION SPA_VERSION_9 438 #define SPA_VERSION_REFQUOTA SPA_VERSION_9 439 #define SPA_VERSION_UNIQUE_ACCURATE SPA_VERSION_9 440 #define SPA_VERSION_L2CACHE SPA_VERSION_10 441 #define SPA_VERSION_NEXT_CLONES SPA_VERSION_11 442 #define SPA_VERSION_ORIGIN SPA_VERSION_11 443 #define SPA_VERSION_DSL_SCRUB SPA_VERSION_11 444 #define SPA_VERSION_SNAP_PROPS SPA_VERSION_12 445 #define SPA_VERSION_USED_BREAKDOWN SPA_VERSION_13 446 #define SPA_VERSION_PASSTHROUGH_X SPA_VERSION_14 447 #define SPA_VERSION_USERSPACE SPA_VERSION_15 448 #define SPA_VERSION_STMF_PROP SPA_VERSION_16 449 #define SPA_VERSION_RAIDZ3 SPA_VERSION_17 450 #define SPA_VERSION_USERREFS SPA_VERSION_18 451 #define SPA_VERSION_HOLES SPA_VERSION_19 452 #define SPA_VERSION_ZLE_COMPRESSION SPA_VERSION_20 453 #define SPA_VERSION_DEDUP SPA_VERSION_21 454 #define SPA_VERSION_RECVD_PROPS SPA_VERSION_22 455 #define SPA_VERSION_SLIM_ZIL SPA_VERSION_23 456 #define SPA_VERSION_SA SPA_VERSION_24 457 #define SPA_VERSION_SCAN SPA_VERSION_25 458 #define SPA_VERSION_DIR_CLONES SPA_VERSION_26 459 #define SPA_VERSION_DEADLISTS SPA_VERSION_26 460 #define SPA_VERSION_FAST_SNAP SPA_VERSION_27 461 #define SPA_VERSION_MULTI_REPLACE SPA_VERSION_28 462 #define SPA_VERSION_BEFORE_FEATURES SPA_VERSION_28 463 #define SPA_VERSION_FEATURES SPA_VERSION_5000 464 465 #define SPA_VERSION_IS_SUPPORTED(v) \ 466 (((v) >= SPA_VERSION_INITIAL && (v) <= SPA_VERSION_BEFORE_FEATURES) || \ 467 ((v) >= SPA_VERSION_FEATURES && (v) <= SPA_VERSION)) 468 469 /* 470 * ZPL version - rev'd whenever an incompatible on-disk format change 471 * occurs. This is independent of SPA/DMU/ZAP versioning. You must 472 * also update the version_table[] and help message in zfs_prop.c. 473 * 474 * When changing, be sure to teach GRUB how to read the new format! 475 * See usr/src/grub/grub-0.97/stage2/{zfs-include/,fsys_zfs*} 476 */ 477 #define ZPL_VERSION_1 1ULL 478 #define ZPL_VERSION_2 2ULL 479 #define ZPL_VERSION_3 3ULL 480 #define ZPL_VERSION_4 4ULL 481 #define ZPL_VERSION_5 5ULL 482 #define ZPL_VERSION ZPL_VERSION_5 483 #define ZPL_VERSION_STRING "5" 484 485 #define ZPL_VERSION_INITIAL ZPL_VERSION_1 486 #define ZPL_VERSION_DIRENT_TYPE ZPL_VERSION_2 487 #define ZPL_VERSION_FUID ZPL_VERSION_3 488 #define ZPL_VERSION_NORMALIZATION ZPL_VERSION_3 489 #define ZPL_VERSION_SYSATTR ZPL_VERSION_3 490 #define ZPL_VERSION_USERSPACE ZPL_VERSION_4 491 #define ZPL_VERSION_SA ZPL_VERSION_5 492 493 /* Rewind request information */ 494 #define ZPOOL_NO_REWIND 1 /* No policy - default behavior */ 495 #define ZPOOL_NEVER_REWIND 2 /* Do not search for best txg or rewind */ 496 #define ZPOOL_TRY_REWIND 4 /* Search for best txg, but do not rewind */ 497 #define ZPOOL_DO_REWIND 8 /* Rewind to best txg w/in deferred frees */ 498 #define ZPOOL_EXTREME_REWIND 16 /* Allow extreme measures to find best txg */ 499 #define ZPOOL_REWIND_MASK 28 /* All the possible rewind bits */ 500 #define ZPOOL_REWIND_POLICIES 31 /* All the possible policy bits */ 501 502 typedef struct zpool_rewind_policy { 503 uint32_t zrp_request; /* rewind behavior requested */ 504 uint64_t zrp_maxmeta; /* max acceptable meta-data errors */ 505 uint64_t zrp_maxdata; /* max acceptable data errors */ 506 uint64_t zrp_txg; /* specific txg to load */ 507 } zpool_rewind_policy_t; 508 509 /* 510 * The following are configuration names used in the nvlist describing a pool's 511 * configuration. 512 */ 513 #define ZPOOL_CONFIG_VERSION "version" 514 #define ZPOOL_CONFIG_POOL_NAME "name" 515 #define ZPOOL_CONFIG_POOL_STATE "state" 516 #define ZPOOL_CONFIG_POOL_TXG "txg" 517 #define ZPOOL_CONFIG_POOL_GUID "pool_guid" 518 #define ZPOOL_CONFIG_CREATE_TXG "create_txg" 519 #define ZPOOL_CONFIG_TOP_GUID "top_guid" 520 #define ZPOOL_CONFIG_VDEV_TREE "vdev_tree" 521 #define ZPOOL_CONFIG_TYPE "type" 522 #define ZPOOL_CONFIG_CHILDREN "children" 523 #define ZPOOL_CONFIG_ID "id" 524 #define ZPOOL_CONFIG_GUID "guid" 525 #define ZPOOL_CONFIG_PATH "path" 526 #define ZPOOL_CONFIG_DEVID "devid" 527 #define ZPOOL_CONFIG_METASLAB_ARRAY "metaslab_array" 528 #define ZPOOL_CONFIG_METASLAB_SHIFT "metaslab_shift" 529 #define ZPOOL_CONFIG_ASHIFT "ashift" 530 #define ZPOOL_CONFIG_ASIZE "asize" 531 #define ZPOOL_CONFIG_DTL "DTL" 532 #define ZPOOL_CONFIG_SCAN_STATS "scan_stats" /* not stored on disk */ 533 #define ZPOOL_CONFIG_VDEV_STATS "vdev_stats" /* not stored on disk */ 534 #define ZPOOL_CONFIG_WHOLE_DISK "whole_disk" 535 #define ZPOOL_CONFIG_ERRCOUNT "error_count" 536 #define ZPOOL_CONFIG_NOT_PRESENT "not_present" 537 #define ZPOOL_CONFIG_SPARES "spares" 538 #define ZPOOL_CONFIG_IS_SPARE "is_spare" 539 #define ZPOOL_CONFIG_NPARITY "nparity" 540 #define ZPOOL_CONFIG_HOSTID "hostid" 541 #define ZPOOL_CONFIG_HOSTNAME "hostname" 542 #define ZPOOL_CONFIG_LOADED_TIME "initial_load_time" 543 #define ZPOOL_CONFIG_UNSPARE "unspare" 544 #define ZPOOL_CONFIG_PHYS_PATH "phys_path" 545 #define ZPOOL_CONFIG_IS_LOG "is_log" 546 #define ZPOOL_CONFIG_L2CACHE "l2cache" 547 #define ZPOOL_CONFIG_HOLE_ARRAY "hole_array" 548 #define ZPOOL_CONFIG_VDEV_CHILDREN "vdev_children" 549 #define ZPOOL_CONFIG_IS_HOLE "is_hole" 550 #define ZPOOL_CONFIG_DDT_HISTOGRAM "ddt_histogram" 551 #define ZPOOL_CONFIG_DDT_OBJ_STATS "ddt_object_stats" 552 #define ZPOOL_CONFIG_DDT_STATS "ddt_stats" 553 #define ZPOOL_CONFIG_SPLIT "splitcfg" 554 #define ZPOOL_CONFIG_ORIG_GUID "orig_guid" 555 #define ZPOOL_CONFIG_SPLIT_GUID "split_guid" 556 #define ZPOOL_CONFIG_SPLIT_LIST "guid_list" 557 #define ZPOOL_CONFIG_REMOVING "removing" 558 #define ZPOOL_CONFIG_RESILVER_TXG "resilver_txg" 559 #define ZPOOL_CONFIG_COMMENT "comment" 560 #define ZPOOL_CONFIG_SUSPENDED "suspended" /* not stored on disk */ 561 #define ZPOOL_CONFIG_TIMESTAMP "timestamp" /* not stored on disk */ 562 #define ZPOOL_CONFIG_BOOTFS "bootfs" /* not stored on disk */ 563 #define ZPOOL_CONFIG_MISSING_DEVICES "missing_vdevs" /* not stored on disk */ 564 #define ZPOOL_CONFIG_LOAD_INFO "load_info" /* not stored on disk */ 565 #define ZPOOL_CONFIG_REWIND_INFO "rewind_info" /* not stored on disk */ 566 #define ZPOOL_CONFIG_UNSUP_FEAT "unsup_feat" /* not stored on disk */ 567 #define ZPOOL_CONFIG_ENABLED_FEAT "enabled_feat" /* not stored on disk */ 568 #define ZPOOL_CONFIG_CAN_RDONLY "can_rdonly" /* not stored on disk */ 569 #define ZPOOL_CONFIG_FEATURES_FOR_READ "features_for_read" 570 #define ZPOOL_CONFIG_FEATURE_STATS "feature_stats" /* not stored on disk */ 571 #define ZPOOL_CONFIG_VDEV_TOP_ZAP "com.delphix:vdev_zap_top" 572 #define ZPOOL_CONFIG_VDEV_LEAF_ZAP "com.delphix:vdev_zap_leaf" 573 #define ZPOOL_CONFIG_HAS_PER_VDEV_ZAPS "com.delphix:has_per_vdev_zaps" 574 /* 575 * The persistent vdev state is stored as separate values rather than a single 576 * 'vdev_state' entry. This is because a device can be in multiple states, such 577 * as offline and degraded. 578 */ 579 #define ZPOOL_CONFIG_OFFLINE "offline" 580 #define ZPOOL_CONFIG_FAULTED "faulted" 581 #define ZPOOL_CONFIG_DEGRADED "degraded" 582 #define ZPOOL_CONFIG_REMOVED "removed" 583 #define ZPOOL_CONFIG_FRU "fru" 584 #define ZPOOL_CONFIG_AUX_STATE "aux_state" 585 586 /* Rewind policy parameters */ 587 #define ZPOOL_REWIND_POLICY "rewind-policy" 588 #define ZPOOL_REWIND_REQUEST "rewind-request" 589 #define ZPOOL_REWIND_REQUEST_TXG "rewind-request-txg" 590 #define ZPOOL_REWIND_META_THRESH "rewind-meta-thresh" 591 #define ZPOOL_REWIND_DATA_THRESH "rewind-data-thresh" 592 593 /* Rewind data discovered */ 594 #define ZPOOL_CONFIG_LOAD_TIME "rewind_txg_ts" 595 #define ZPOOL_CONFIG_LOAD_DATA_ERRORS "verify_data_errors" 596 #define ZPOOL_CONFIG_REWIND_TIME "seconds_of_rewind" 597 598 #define VDEV_TYPE_ROOT "root" 599 #define VDEV_TYPE_MIRROR "mirror" 600 #define VDEV_TYPE_REPLACING "replacing" 601 #define VDEV_TYPE_RAIDZ "raidz" 602 #define VDEV_TYPE_DISK "disk" 603 #define VDEV_TYPE_FILE "file" 604 #define VDEV_TYPE_MISSING "missing" 605 #define VDEV_TYPE_HOLE "hole" 606 #define VDEV_TYPE_SPARE "spare" 607 #define VDEV_TYPE_LOG "log" 608 #define VDEV_TYPE_L2CACHE "l2cache" 609 610 /* 611 * This is needed in userland to report the minimum necessary device size. 612 * 613 * Note that the zfs test suite uses 64MB vdevs. 614 */ 615 #define SPA_MINDEVSIZE (64ULL << 20) 616 617 /* 618 * Set if the fragmentation has not yet been calculated. This can happen 619 * because the space maps have not been upgraded or the histogram feature 620 * is not enabled. 621 */ 622 #define ZFS_FRAG_INVALID UINT64_MAX 623 624 /* 625 * The location of the pool configuration repository, shared between kernel and 626 * userland. 627 */ 628 #define ZPOOL_CACHE "/etc/zfs/zpool.cache" 629 630 /* 631 * vdev states are ordered from least to most healthy. 632 * A vdev that's CANT_OPEN or below is considered unusable. 633 */ 634 typedef enum vdev_state { 635 VDEV_STATE_UNKNOWN = 0, /* Uninitialized vdev */ 636 VDEV_STATE_CLOSED, /* Not currently open */ 637 VDEV_STATE_OFFLINE, /* Not allowed to open */ 638 VDEV_STATE_REMOVED, /* Explicitly removed from system */ 639 VDEV_STATE_CANT_OPEN, /* Tried to open, but failed */ 640 VDEV_STATE_FAULTED, /* External request to fault device */ 641 VDEV_STATE_DEGRADED, /* Replicated vdev with unhealthy kids */ 642 VDEV_STATE_HEALTHY /* Presumed good */ 643 } vdev_state_t; 644 645 #define VDEV_STATE_ONLINE VDEV_STATE_HEALTHY 646 647 /* 648 * vdev aux states. When a vdev is in the CANT_OPEN state, the aux field 649 * of the vdev stats structure uses these constants to distinguish why. 650 */ 651 typedef enum vdev_aux { 652 VDEV_AUX_NONE, /* no error */ 653 VDEV_AUX_OPEN_FAILED, /* ldi_open_*() or vn_open() failed */ 654 VDEV_AUX_CORRUPT_DATA, /* bad label or disk contents */ 655 VDEV_AUX_NO_REPLICAS, /* insufficient number of replicas */ 656 VDEV_AUX_BAD_GUID_SUM, /* vdev guid sum doesn't match */ 657 VDEV_AUX_TOO_SMALL, /* vdev size is too small */ 658 VDEV_AUX_BAD_LABEL, /* the label is OK but invalid */ 659 VDEV_AUX_VERSION_NEWER, /* on-disk version is too new */ 660 VDEV_AUX_VERSION_OLDER, /* on-disk version is too old */ 661 VDEV_AUX_UNSUP_FEAT, /* unsupported features */ 662 VDEV_AUX_SPARED, /* hot spare used in another pool */ 663 VDEV_AUX_ERR_EXCEEDED, /* too many errors */ 664 VDEV_AUX_IO_FAILURE, /* experienced I/O failure */ 665 VDEV_AUX_BAD_LOG, /* cannot read log chain(s) */ 666 VDEV_AUX_EXTERNAL, /* external diagnosis */ 667 VDEV_AUX_SPLIT_POOL /* vdev was split off into another pool */ 668 } vdev_aux_t; 669 670 /* 671 * pool state. The following states are written to disk as part of the normal 672 * SPA lifecycle: ACTIVE, EXPORTED, DESTROYED, SPARE, L2CACHE. The remaining 673 * states are software abstractions used at various levels to communicate 674 * pool state. 675 */ 676 typedef enum pool_state { 677 POOL_STATE_ACTIVE = 0, /* In active use */ 678 POOL_STATE_EXPORTED, /* Explicitly exported */ 679 POOL_STATE_DESTROYED, /* Explicitly destroyed */ 680 POOL_STATE_SPARE, /* Reserved for hot spare use */ 681 POOL_STATE_L2CACHE, /* Level 2 ARC device */ 682 POOL_STATE_UNINITIALIZED, /* Internal spa_t state */ 683 POOL_STATE_UNAVAIL, /* Internal libzfs state */ 684 POOL_STATE_POTENTIALLY_ACTIVE /* Internal libzfs state */ 685 } pool_state_t; 686 687 /* 688 * Scan Functions. 689 */ 690 typedef enum pool_scan_func { 691 POOL_SCAN_NONE, 692 POOL_SCAN_SCRUB, 693 POOL_SCAN_RESILVER, 694 POOL_SCAN_FUNCS 695 } pool_scan_func_t; 696 697 /* 698 * Used to control scrub pause and resume. 699 */ 700 typedef enum pool_scrub_cmd { 701 POOL_SCRUB_NORMAL = 0, 702 POOL_SCRUB_PAUSE, 703 POOL_SCRUB_FLAGS_END 704 } pool_scrub_cmd_t; 705 706 707 /* 708 * ZIO types. Needed to interpret vdev statistics below. 709 */ 710 typedef enum zio_type { 711 ZIO_TYPE_NULL = 0, 712 ZIO_TYPE_READ, 713 ZIO_TYPE_WRITE, 714 ZIO_TYPE_FREE, 715 ZIO_TYPE_CLAIM, 716 ZIO_TYPE_IOCTL, 717 ZIO_TYPES 718 } zio_type_t; 719 720 /* 721 * Pool statistics. Note: all fields should be 64-bit because this 722 * is passed between kernel and userland as an nvlist uint64 array. 723 */ 724 typedef struct pool_scan_stat { 725 /* values stored on disk */ 726 uint64_t pss_func; /* pool_scan_func_t */ 727 uint64_t pss_state; /* dsl_scan_state_t */ 728 uint64_t pss_start_time; /* scan start time */ 729 uint64_t pss_end_time; /* scan end time */ 730 uint64_t pss_to_examine; /* total bytes to scan */ 731 uint64_t pss_examined; /* total examined bytes */ 732 uint64_t pss_to_process; /* total bytes to process */ 733 uint64_t pss_processed; /* total processed bytes */ 734 uint64_t pss_errors; /* scan errors */ 735 736 /* values not stored on disk */ 737 uint64_t pss_pass_exam; /* examined bytes per scan pass */ 738 uint64_t pss_pass_start; /* start time of a scan pass */ 739 uint64_t pss_pass_scrub_pause; /* pause time of a scurb pass */ 740 /* cumulative time scrub spent paused, needed for rate calculation */ 741 uint64_t pss_pass_scrub_spent_paused; 742 } pool_scan_stat_t; 743 744 typedef enum dsl_scan_state { 745 DSS_NONE, 746 DSS_SCANNING, 747 DSS_FINISHED, 748 DSS_CANCELED, 749 DSS_NUM_STATES 750 } dsl_scan_state_t; 751 752 753 /* 754 * Vdev statistics. Note: all fields should be 64-bit because this 755 * is passed between kernel and userland as an nvlist uint64 array. 756 */ 757 typedef struct vdev_stat { 758 hrtime_t vs_timestamp; /* time since vdev load */ 759 uint64_t vs_state; /* vdev state */ 760 uint64_t vs_aux; /* see vdev_aux_t */ 761 uint64_t vs_alloc; /* space allocated */ 762 uint64_t vs_space; /* total capacity */ 763 uint64_t vs_dspace; /* deflated capacity */ 764 uint64_t vs_rsize; /* replaceable dev size */ 765 uint64_t vs_esize; /* expandable dev size */ 766 uint64_t vs_ops[ZIO_TYPES]; /* operation count */ 767 uint64_t vs_bytes[ZIO_TYPES]; /* bytes read/written */ 768 uint64_t vs_read_errors; /* read errors */ 769 uint64_t vs_write_errors; /* write errors */ 770 uint64_t vs_checksum_errors; /* checksum errors */ 771 uint64_t vs_self_healed; /* self-healed bytes */ 772 uint64_t vs_scan_removing; /* removing? */ 773 uint64_t vs_scan_processed; /* scan processed bytes */ 774 uint64_t vs_fragmentation; /* device fragmentation */ 775 } vdev_stat_t; 776 777 /* 778 * DDT statistics. Note: all fields should be 64-bit because this 779 * is passed between kernel and userland as an nvlist uint64 array. 780 */ 781 typedef struct ddt_object { 782 uint64_t ddo_count; /* number of elments in ddt */ 783 uint64_t ddo_dspace; /* size of ddt on disk */ 784 uint64_t ddo_mspace; /* size of ddt in-core */ 785 } ddt_object_t; 786 787 typedef struct ddt_stat { 788 uint64_t dds_blocks; /* blocks */ 789 uint64_t dds_lsize; /* logical size */ 790 uint64_t dds_psize; /* physical size */ 791 uint64_t dds_dsize; /* deflated allocated size */ 792 uint64_t dds_ref_blocks; /* referenced blocks */ 793 uint64_t dds_ref_lsize; /* referenced lsize * refcnt */ 794 uint64_t dds_ref_psize; /* referenced psize * refcnt */ 795 uint64_t dds_ref_dsize; /* referenced dsize * refcnt */ 796 } ddt_stat_t; 797 798 typedef struct ddt_histogram { 799 ddt_stat_t ddh_stat[64]; /* power-of-two histogram buckets */ 800 } ddt_histogram_t; 801 802 #define ZVOL_DRIVER "zvol" 803 #define ZFS_DRIVER "zfs" 804 #define ZFS_DEV "/dev/zfs" 805 #define ZFS_DISK_ROOT "/dev/dsk" 806 #define ZFS_DISK_ROOTD ZFS_DISK_ROOT "/" 807 #define ZFS_RDISK_ROOT "/dev/rdsk" 808 #define ZFS_RDISK_ROOTD ZFS_RDISK_ROOT "/" 809 810 /* general zvol path */ 811 #define ZVOL_DIR "/dev/zvol" 812 /* expansion */ 813 #define ZVOL_PSEUDO_DEV "/devices/pseudo/zfs@0:" 814 /* for dump and swap */ 815 #define ZVOL_FULL_DEV_DIR ZVOL_DIR "/dsk/" 816 #define ZVOL_FULL_RDEV_DIR ZVOL_DIR "/rdsk/" 817 818 #define ZVOL_PROP_NAME "name" 819 #define ZVOL_DEFAULT_BLOCKSIZE 8192 820 821 /* 822 * /dev/zfs ioctl numbers. 823 */ 824 typedef enum zfs_ioc { 825 ZFS_IOC_FIRST = ('Z' << 8), 826 ZFS_IOC = ZFS_IOC_FIRST, 827 ZFS_IOC_POOL_CREATE = ZFS_IOC_FIRST, 828 ZFS_IOC_POOL_DESTROY, 829 ZFS_IOC_POOL_IMPORT, 830 ZFS_IOC_POOL_EXPORT, 831 ZFS_IOC_POOL_CONFIGS, 832 ZFS_IOC_POOL_STATS, 833 ZFS_IOC_POOL_TRYIMPORT, 834 ZFS_IOC_POOL_SCAN, 835 ZFS_IOC_POOL_FREEZE, 836 ZFS_IOC_POOL_UPGRADE, 837 ZFS_IOC_POOL_GET_HISTORY, 838 ZFS_IOC_VDEV_ADD, 839 ZFS_IOC_VDEV_REMOVE, 840 ZFS_IOC_VDEV_SET_STATE, 841 ZFS_IOC_VDEV_ATTACH, 842 ZFS_IOC_VDEV_DETACH, 843 ZFS_IOC_VDEV_SETPATH, 844 ZFS_IOC_VDEV_SETFRU, 845 ZFS_IOC_OBJSET_STATS, 846 ZFS_IOC_OBJSET_ZPLPROPS, 847 ZFS_IOC_DATASET_LIST_NEXT, 848 ZFS_IOC_SNAPSHOT_LIST_NEXT, 849 ZFS_IOC_SET_PROP, 850 ZFS_IOC_CREATE, 851 ZFS_IOC_DESTROY, 852 ZFS_IOC_ROLLBACK, 853 ZFS_IOC_RENAME, 854 ZFS_IOC_RECV, 855 ZFS_IOC_SEND, 856 ZFS_IOC_INJECT_FAULT, 857 ZFS_IOC_CLEAR_FAULT, 858 ZFS_IOC_INJECT_LIST_NEXT, 859 ZFS_IOC_ERROR_LOG, 860 ZFS_IOC_CLEAR, 861 ZFS_IOC_PROMOTE, 862 ZFS_IOC_SNAPSHOT, 863 ZFS_IOC_DSOBJ_TO_DSNAME, 864 ZFS_IOC_OBJ_TO_PATH, 865 ZFS_IOC_POOL_SET_PROPS, 866 ZFS_IOC_POOL_GET_PROPS, 867 ZFS_IOC_SET_FSACL, 868 ZFS_IOC_GET_FSACL, 869 ZFS_IOC_SHARE, 870 ZFS_IOC_INHERIT_PROP, 871 ZFS_IOC_SMB_ACL, 872 ZFS_IOC_USERSPACE_ONE, 873 ZFS_IOC_USERSPACE_MANY, 874 ZFS_IOC_USERSPACE_UPGRADE, 875 ZFS_IOC_HOLD, 876 ZFS_IOC_RELEASE, 877 ZFS_IOC_GET_HOLDS, 878 ZFS_IOC_OBJSET_RECVD_PROPS, 879 ZFS_IOC_VDEV_SPLIT, 880 ZFS_IOC_NEXT_OBJ, 881 ZFS_IOC_DIFF, 882 ZFS_IOC_TMP_SNAPSHOT, 883 ZFS_IOC_OBJ_TO_STATS, 884 ZFS_IOC_SPACE_WRITTEN, 885 ZFS_IOC_SPACE_SNAPS, 886 ZFS_IOC_DESTROY_SNAPS, 887 ZFS_IOC_POOL_REGUID, 888 ZFS_IOC_POOL_REOPEN, 889 ZFS_IOC_SEND_PROGRESS, 890 ZFS_IOC_LOG_HISTORY, 891 ZFS_IOC_SEND_NEW, 892 ZFS_IOC_SEND_SPACE, 893 ZFS_IOC_CLONE, 894 ZFS_IOC_BOOKMARK, 895 ZFS_IOC_GET_BOOKMARKS, 896 ZFS_IOC_DESTROY_BOOKMARKS, 897 ZFS_IOC_CHANNEL_PROGRAM, 898 ZFS_IOC_LAST 899 } zfs_ioc_t; 900 901 /* 902 * Internal SPA load state. Used by FMA diagnosis engine. 903 */ 904 typedef enum { 905 SPA_LOAD_NONE, /* no load in progress */ 906 SPA_LOAD_OPEN, /* normal open */ 907 SPA_LOAD_IMPORT, /* import in progress */ 908 SPA_LOAD_TRYIMPORT, /* tryimport in progress */ 909 SPA_LOAD_RECOVER, /* recovery requested */ 910 SPA_LOAD_ERROR, /* load failed */ 911 SPA_LOAD_CREATE /* creation in progress */ 912 } spa_load_state_t; 913 914 /* 915 * Bookmark name values. 916 */ 917 #define ZPOOL_ERR_LIST "error list" 918 #define ZPOOL_ERR_DATASET "dataset" 919 #define ZPOOL_ERR_OBJECT "object" 920 921 #define HIS_MAX_RECORD_LEN (MAXPATHLEN + MAXPATHLEN + 1) 922 923 /* 924 * The following are names used in the nvlist describing 925 * the pool's history log. 926 */ 927 #define ZPOOL_HIST_RECORD "history record" 928 #define ZPOOL_HIST_TIME "history time" 929 #define ZPOOL_HIST_CMD "history command" 930 #define ZPOOL_HIST_WHO "history who" 931 #define ZPOOL_HIST_ZONE "history zone" 932 #define ZPOOL_HIST_HOST "history hostname" 933 #define ZPOOL_HIST_TXG "history txg" 934 #define ZPOOL_HIST_INT_EVENT "history internal event" 935 #define ZPOOL_HIST_INT_STR "history internal str" 936 #define ZPOOL_HIST_INT_NAME "internal_name" 937 #define ZPOOL_HIST_IOCTL "ioctl" 938 #define ZPOOL_HIST_INPUT_NVL "in_nvl" 939 #define ZPOOL_HIST_OUTPUT_NVL "out_nvl" 940 #define ZPOOL_HIST_DSNAME "dsname" 941 #define ZPOOL_HIST_DSID "dsid" 942 #define ZPOOL_HIST_ERRNO "errno" 943 944 /* 945 * Flags for ZFS_IOC_VDEV_SET_STATE 946 */ 947 #define ZFS_ONLINE_CHECKREMOVE 0x1 948 #define ZFS_ONLINE_UNSPARE 0x2 949 #define ZFS_ONLINE_FORCEFAULT 0x4 950 #define ZFS_ONLINE_EXPAND 0x8 951 #define ZFS_OFFLINE_TEMPORARY 0x1 952 953 /* 954 * Flags for ZFS_IOC_POOL_IMPORT 955 */ 956 #define ZFS_IMPORT_NORMAL 0x0 957 #define ZFS_IMPORT_VERBATIM 0x1 958 #define ZFS_IMPORT_ANY_HOST 0x2 959 #define ZFS_IMPORT_MISSING_LOG 0x4 960 #define ZFS_IMPORT_ONLY 0x8 961 962 /* 963 * Channel program argument/return nvlist keys and defaults. 964 */ 965 #define ZCP_ARG_PROGRAM "program" 966 #define ZCP_ARG_ARGLIST "arg" 967 #define ZCP_ARG_INSTRLIMIT "instrlimit" 968 #define ZCP_ARG_MEMLIMIT "memlimit" 969 970 #define ZCP_ARG_CLIARGV "argv" 971 972 #define ZCP_RET_ERROR "error" 973 #define ZCP_RET_RETURN "return" 974 975 #define ZCP_DEFAULT_INSTRLIMIT (10 * 1000 * 1000) 976 #define ZCP_MAX_INSTRLIMIT (10 * ZCP_DEFAULT_INSTRLIMIT) 977 #define ZCP_DEFAULT_MEMLIMIT (10 * 1024 * 1024) 978 #define ZCP_MAX_MEMLIMIT (10 * ZCP_DEFAULT_MEMLIMIT) 979 980 /* 981 * Sysevent payload members. ZFS will generate the following sysevents with the 982 * given payloads: 983 * 984 * ESC_ZFS_RESILVER_START 985 * ESC_ZFS_RESILVER_END 986 * ESC_ZFS_POOL_DESTROY 987 * ESC_ZFS_POOL_REGUID 988 * 989 * ZFS_EV_POOL_NAME DATA_TYPE_STRING 990 * ZFS_EV_POOL_GUID DATA_TYPE_UINT64 991 * 992 * ESC_ZFS_VDEV_REMOVE 993 * ESC_ZFS_VDEV_CLEAR 994 * ESC_ZFS_VDEV_CHECK 995 * 996 * ZFS_EV_POOL_NAME DATA_TYPE_STRING 997 * ZFS_EV_POOL_GUID DATA_TYPE_UINT64 998 * ZFS_EV_VDEV_PATH DATA_TYPE_STRING (optional) 999 * ZFS_EV_VDEV_GUID DATA_TYPE_UINT64 1000 * 1001 * ESC_ZFS_HISTORY_EVENT 1002 * 1003 * ZFS_EV_POOL_NAME DATA_TYPE_STRING 1004 * ZFS_EV_POOL_GUID DATA_TYPE_UINT64 1005 * ZFS_EV_HIST_TIME DATA_TYPE_UINT64 (optional) 1006 * ZFS_EV_HIST_CMD DATA_TYPE_STRING (optional) 1007 * ZFS_EV_HIST_WHO DATA_TYPE_UINT64 (optional) 1008 * ZFS_EV_HIST_ZONE DATA_TYPE_STRING (optional) 1009 * ZFS_EV_HIST_HOST DATA_TYPE_STRING (optional) 1010 * ZFS_EV_HIST_TXG DATA_TYPE_UINT64 (optional) 1011 * ZFS_EV_HIST_INT_EVENT DATA_TYPE_UINT64 (optional) 1012 * ZFS_EV_HIST_INT_STR DATA_TYPE_STRING (optional) 1013 * ZFS_EV_HIST_INT_NAME DATA_TYPE_STRING (optional) 1014 * ZFS_EV_HIST_IOCTL DATA_TYPE_STRING (optional) 1015 * ZFS_EV_HIST_DSNAME DATA_TYPE_STRING (optional) 1016 * ZFS_EV_HIST_DSID DATA_TYPE_UINT64 (optional) 1017 * 1018 * The ZFS_EV_HIST_* members will correspond to the ZPOOL_HIST_* members in the 1019 * history log nvlist. The keynames will be free of any spaces or other 1020 * characters that could be potentially unexpected to consumers of the 1021 * sysevents. 1022 */ 1023 #define ZFS_EV_POOL_NAME "pool_name" 1024 #define ZFS_EV_POOL_GUID "pool_guid" 1025 #define ZFS_EV_VDEV_PATH "vdev_path" 1026 #define ZFS_EV_VDEV_GUID "vdev_guid" 1027 #define ZFS_EV_HIST_TIME "history_time" 1028 #define ZFS_EV_HIST_CMD "history_command" 1029 #define ZFS_EV_HIST_WHO "history_who" 1030 #define ZFS_EV_HIST_ZONE "history_zone" 1031 #define ZFS_EV_HIST_HOST "history_hostname" 1032 #define ZFS_EV_HIST_TXG "history_txg" 1033 #define ZFS_EV_HIST_INT_EVENT "history_internal_event" 1034 #define ZFS_EV_HIST_INT_STR "history_internal_str" 1035 #define ZFS_EV_HIST_INT_NAME "history_internal_name" 1036 #define ZFS_EV_HIST_IOCTL "history_ioctl" 1037 #define ZFS_EV_HIST_DSNAME "history_dsname" 1038 #define ZFS_EV_HIST_DSID "history_dsid" 1039 1040 #ifdef __cplusplus 1041 } 1042 #endif 1043 1044 #endif /* _SYS_FS_ZFS_H */ 1045