1fa9e4066Sahrens /* 2fa9e4066Sahrens * CDDL HEADER START 3fa9e4066Sahrens * 4fa9e4066Sahrens * The contents of this file are subject to the terms of the 5ea8dc4b6Seschrock * Common Development and Distribution License (the "License"). 6ea8dc4b6Seschrock * You may not use this file except in compliance with the License. 7fa9e4066Sahrens * 8fa9e4066Sahrens * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9fa9e4066Sahrens * or http://www.opensolaris.org/os/licensing. 10fa9e4066Sahrens * See the License for the specific language governing permissions 11fa9e4066Sahrens * and limitations under the License. 12fa9e4066Sahrens * 13fa9e4066Sahrens * When distributing Covered Code, include this CDDL HEADER in each 14fa9e4066Sahrens * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15fa9e4066Sahrens * If applicable, add the following below this CDDL HEADER, with the 16fa9e4066Sahrens * fields enclosed by brackets "[]" replaced with your own identifying 17fa9e4066Sahrens * information: Portions Copyright [yyyy] [name of copyright owner] 18fa9e4066Sahrens * 19fa9e4066Sahrens * CDDL HEADER END 20fa9e4066Sahrens */ 21fa9e4066Sahrens /* 22c99e4bdcSChris Kirby * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. 23*5d7b4d43SMatthew Ahrens * Copyright (c) 2013 by Delphix. All rights reserved. 24fa9e4066Sahrens */ 25fa9e4066Sahrens 26fa9e4066Sahrens #ifndef _SYS_ZFS_IOCTL_H 27fa9e4066Sahrens #define _SYS_ZFS_IOCTL_H 28fa9e4066Sahrens 29fa9e4066Sahrens #include <sys/cred.h> 30fa9e4066Sahrens #include <sys/dmu.h> 31ea8dc4b6Seschrock #include <sys/zio.h> 32ecd6cf80Smarks #include <sys/dsl_deleg.h> 339e69d7d0SLori Alt #include <sys/spa.h> 3499d5e173STim Haley #include <sys/zfs_stat.h> 35fa9e4066Sahrens 36da6c28aaSamw #ifdef _KERNEL 37da6c28aaSamw #include <sys/nvpair.h> 38da6c28aaSamw #endif /* _KERNEL */ 39da6c28aaSamw 40fa9e4066Sahrens #ifdef __cplusplus 41fa9e4066Sahrens extern "C" { 42fa9e4066Sahrens #endif 43fa9e4066Sahrens 444445fffbSMatthew Ahrens /* 454445fffbSMatthew Ahrens * The structures in this file are passed between userland and the 464445fffbSMatthew Ahrens * kernel. Userland may be running a 32-bit process, while the kernel 474445fffbSMatthew Ahrens * is 64-bit. Therefore, these structures need to compile the same in 484445fffbSMatthew Ahrens * 32-bit and 64-bit. This means not using type "long", and adding 494445fffbSMatthew Ahrens * explicit padding so that the 32-bit structure will not be packed more 504445fffbSMatthew Ahrens * tightly than the 64-bit structure (which requires 64-bit alignment). 514445fffbSMatthew Ahrens */ 524445fffbSMatthew Ahrens 53fa9e4066Sahrens /* 54fa9e4066Sahrens * Property values for snapdir 55fa9e4066Sahrens */ 56a0965f35Sbonwick #define ZFS_SNAPDIR_HIDDEN 0 57a0965f35Sbonwick #define ZFS_SNAPDIR_VISIBLE 1 58fa9e4066Sahrens 599e69d7d0SLori Alt /* 609e69d7d0SLori Alt * Field manipulation macros for the drr_versioninfo field of the 619e69d7d0SLori Alt * send stream header. 629e69d7d0SLori Alt */ 639e69d7d0SLori Alt 649e69d7d0SLori Alt /* 659e69d7d0SLori Alt * Header types for zfs send streams. 669e69d7d0SLori Alt */ 679e69d7d0SLori Alt typedef enum drr_headertype { 689e69d7d0SLori Alt DMU_SUBSTREAM = 0x1, 699e69d7d0SLori Alt DMU_COMPOUNDSTREAM = 0x2 709e69d7d0SLori Alt } drr_headertype_t; 719e69d7d0SLori Alt 729e69d7d0SLori Alt #define DMU_GET_STREAM_HDRTYPE(vi) BF64_GET((vi), 0, 2) 739e69d7d0SLori Alt #define DMU_SET_STREAM_HDRTYPE(vi, x) BF64_SET((vi), 0, 2, x) 749e69d7d0SLori Alt 759e69d7d0SLori Alt #define DMU_GET_FEATUREFLAGS(vi) BF64_GET((vi), 2, 30) 769e69d7d0SLori Alt #define DMU_SET_FEATUREFLAGS(vi, x) BF64_SET((vi), 2, 30, x) 779e69d7d0SLori Alt 789e69d7d0SLori Alt /* 799e69d7d0SLori Alt * Feature flags for zfs send streams (flags in drr_versioninfo) 809e69d7d0SLori Alt */ 819e69d7d0SLori Alt 82*5d7b4d43SMatthew Ahrens #define DMU_BACKUP_FEATURE_DEDUP (1<<0) 83*5d7b4d43SMatthew Ahrens #define DMU_BACKUP_FEATURE_DEDUPPROPS (1<<1) 84*5d7b4d43SMatthew Ahrens #define DMU_BACKUP_FEATURE_SA_SPILL (1<<2) 85*5d7b4d43SMatthew Ahrens /* flags #3 - #15 are reserved for incompatible closed-source implementations */ 86*5d7b4d43SMatthew Ahrens #define DMU_BACKUP_FEATURE_EMBED_DATA (1<<16) 87*5d7b4d43SMatthew Ahrens #define DMU_BACKUP_FEATURE_EMBED_DATA_LZ4 (1<<17) 889e69d7d0SLori Alt 899e69d7d0SLori Alt /* 909e69d7d0SLori Alt * Mask of all supported backup features 919e69d7d0SLori Alt */ 928e714474SLori Alt #define DMU_BACKUP_FEATURE_MASK (DMU_BACKUP_FEATURE_DEDUP | \ 93*5d7b4d43SMatthew Ahrens DMU_BACKUP_FEATURE_DEDUPPROPS | DMU_BACKUP_FEATURE_SA_SPILL | \ 94*5d7b4d43SMatthew Ahrens DMU_BACKUP_FEATURE_EMBED_DATA | DMU_BACKUP_FEATURE_EMBED_DATA_LZ4) 959e69d7d0SLori Alt 969e69d7d0SLori Alt /* Are all features in the given flag word currently supported? */ 979e69d7d0SLori Alt #define DMU_STREAM_SUPPORTED(x) (!((x) & ~DMU_BACKUP_FEATURE_MASK)) 989e69d7d0SLori Alt 999e69d7d0SLori Alt /* 1009e69d7d0SLori Alt * The drr_versioninfo field of the dmu_replay_record has the 1019e69d7d0SLori Alt * following layout: 1029e69d7d0SLori Alt * 1039e69d7d0SLori Alt * 64 56 48 40 32 24 16 8 0 1049e69d7d0SLori Alt * +-------+-------+-------+-------+-------+-------+-------+-------+ 1059e69d7d0SLori Alt * | reserved | feature-flags |C|S| 1069e69d7d0SLori Alt * +-------+-------+-------+-------+-------+-------+-------+-------+ 1079e69d7d0SLori Alt * 1089e69d7d0SLori Alt * The low order two bits indicate the header type: SUBSTREAM (0x1) 1099e69d7d0SLori Alt * or COMPOUNDSTREAM (0x2). Using two bits for this is historical: 1109e69d7d0SLori Alt * this field used to be a version number, where the two version types 1119e69d7d0SLori Alt * were 1 and 2. Using two bits for this allows earlier versions of 1129e69d7d0SLori Alt * the code to be able to recognize send streams that don't use any 1139e69d7d0SLori Alt * of the features indicated by feature flags. 1149e69d7d0SLori Alt */ 1159e69d7d0SLori Alt 116fa9e4066Sahrens #define DMU_BACKUP_MAGIC 0x2F5bacbacULL 117fa9e4066Sahrens 118ab04eb8eStimh #define DRR_FLAG_CLONE (1<<0) 119ab04eb8eStimh #define DRR_FLAG_CI_DATA (1<<1) 1203cb34c60Sahrens 1218e714474SLori Alt /* 1228e714474SLori Alt * flags in the drr_checksumflags field in the DRR_WRITE and 1238e714474SLori Alt * DRR_WRITE_BYREF blocks 1248e714474SLori Alt */ 1258e714474SLori Alt #define DRR_CHECKSUM_DEDUP (1<<0) 1268e714474SLori Alt 1278e714474SLori Alt #define DRR_IS_DEDUP_CAPABLE(flags) ((flags) & DRR_CHECKSUM_DEDUP) 1288e714474SLori Alt 129fa9e4066Sahrens /* 130fa9e4066Sahrens * zfs ioctl command structure 131fa9e4066Sahrens */ 132fa9e4066Sahrens typedef struct dmu_replay_record { 133fa9e4066Sahrens enum { 134fa9e4066Sahrens DRR_BEGIN, DRR_OBJECT, DRR_FREEOBJECTS, 1359e69d7d0SLori Alt DRR_WRITE, DRR_FREE, DRR_END, DRR_WRITE_BYREF, 136*5d7b4d43SMatthew Ahrens DRR_SPILL, DRR_WRITE_EMBEDDED, DRR_NUMTYPES 137fa9e4066Sahrens } drr_type; 1383cb34c60Sahrens uint32_t drr_payloadlen; 139fa9e4066Sahrens union { 140fa9e4066Sahrens struct drr_begin { 141fa9e4066Sahrens uint64_t drr_magic; 1429e69d7d0SLori Alt uint64_t drr_versioninfo; /* was drr_version */ 143fa9e4066Sahrens uint64_t drr_creation_time; 144fa9e4066Sahrens dmu_objset_type_t drr_type; 1453cb34c60Sahrens uint32_t drr_flags; 146fa9e4066Sahrens uint64_t drr_toguid; 147fa9e4066Sahrens uint64_t drr_fromguid; 148fa9e4066Sahrens char drr_toname[MAXNAMELEN]; 149fa9e4066Sahrens } drr_begin; 150fa9e4066Sahrens struct drr_end { 151ea8dc4b6Seschrock zio_cksum_t drr_checksum; 1529e69d7d0SLori Alt uint64_t drr_toguid; 153fa9e4066Sahrens } drr_end; 154fa9e4066Sahrens struct drr_object { 155fa9e4066Sahrens uint64_t drr_object; 156fa9e4066Sahrens dmu_object_type_t drr_type; 157fa9e4066Sahrens dmu_object_type_t drr_bonustype; 158fa9e4066Sahrens uint32_t drr_blksz; 159fa9e4066Sahrens uint32_t drr_bonuslen; 1609e69d7d0SLori Alt uint8_t drr_checksumtype; 161fa9e4066Sahrens uint8_t drr_compress; 162fa9e4066Sahrens uint8_t drr_pad[6]; 1639e69d7d0SLori Alt uint64_t drr_toguid; 164a2eea2e1Sahrens /* bonus content follows */ 165fa9e4066Sahrens } drr_object; 166fa9e4066Sahrens struct drr_freeobjects { 167fa9e4066Sahrens uint64_t drr_firstobj; 168fa9e4066Sahrens uint64_t drr_numobjs; 1699e69d7d0SLori Alt uint64_t drr_toguid; 170fa9e4066Sahrens } drr_freeobjects; 171fa9e4066Sahrens struct drr_write { 172fa9e4066Sahrens uint64_t drr_object; 173fa9e4066Sahrens dmu_object_type_t drr_type; 174fa9e4066Sahrens uint32_t drr_pad; 175fa9e4066Sahrens uint64_t drr_offset; 176fa9e4066Sahrens uint64_t drr_length; 1779e69d7d0SLori Alt uint64_t drr_toguid; 1789e69d7d0SLori Alt uint8_t drr_checksumtype; 1798e714474SLori Alt uint8_t drr_checksumflags; 1808e714474SLori Alt uint8_t drr_pad2[6]; 1818e714474SLori Alt ddt_key_t drr_key; /* deduplication key */ 182a2eea2e1Sahrens /* content follows */ 183fa9e4066Sahrens } drr_write; 184fa9e4066Sahrens struct drr_free { 185fa9e4066Sahrens uint64_t drr_object; 186fa9e4066Sahrens uint64_t drr_offset; 187fa9e4066Sahrens uint64_t drr_length; 1889e69d7d0SLori Alt uint64_t drr_toguid; 189fa9e4066Sahrens } drr_free; 1909e69d7d0SLori Alt struct drr_write_byref { 1919e69d7d0SLori Alt /* where to put the data */ 1929e69d7d0SLori Alt uint64_t drr_object; 1939e69d7d0SLori Alt uint64_t drr_offset; 1949e69d7d0SLori Alt uint64_t drr_length; 1959e69d7d0SLori Alt uint64_t drr_toguid; 1969e69d7d0SLori Alt /* where to find the prior copy of the data */ 1979e69d7d0SLori Alt uint64_t drr_refguid; 1989e69d7d0SLori Alt uint64_t drr_refobject; 1999e69d7d0SLori Alt uint64_t drr_refoffset; 2008e714474SLori Alt /* properties of the data */ 2019e69d7d0SLori Alt uint8_t drr_checksumtype; 2028e714474SLori Alt uint8_t drr_checksumflags; 2038e714474SLori Alt uint8_t drr_pad2[6]; 2048e714474SLori Alt ddt_key_t drr_key; /* deduplication key */ 2059e69d7d0SLori Alt } drr_write_byref; 2060a586ceaSMark Shellenbaum struct drr_spill { 2070a586ceaSMark Shellenbaum uint64_t drr_object; 2080a586ceaSMark Shellenbaum uint64_t drr_length; 2090a586ceaSMark Shellenbaum uint64_t drr_toguid; 2100a586ceaSMark Shellenbaum uint64_t drr_pad[4]; /* needed for crypto */ 2110a586ceaSMark Shellenbaum /* spill data follows */ 2120a586ceaSMark Shellenbaum } drr_spill; 213*5d7b4d43SMatthew Ahrens struct drr_write_embedded { 214*5d7b4d43SMatthew Ahrens uint64_t drr_object; 215*5d7b4d43SMatthew Ahrens uint64_t drr_offset; 216*5d7b4d43SMatthew Ahrens /* logical length, should equal blocksize */ 217*5d7b4d43SMatthew Ahrens uint64_t drr_length; 218*5d7b4d43SMatthew Ahrens uint64_t drr_toguid; 219*5d7b4d43SMatthew Ahrens uint8_t drr_compression; 220*5d7b4d43SMatthew Ahrens uint8_t drr_etype; 221*5d7b4d43SMatthew Ahrens uint8_t drr_pad[6]; 222*5d7b4d43SMatthew Ahrens uint32_t drr_lsize; /* uncompressed size of payload */ 223*5d7b4d43SMatthew Ahrens uint32_t drr_psize; /* compr. (real) size of payload */ 224*5d7b4d43SMatthew Ahrens /* (possibly compressed) content follows */ 225*5d7b4d43SMatthew Ahrens } drr_write_embedded; 226fa9e4066Sahrens } drr_u; 227fa9e4066Sahrens } dmu_replay_record_t; 228fa9e4066Sahrens 22999d5e173STim Haley /* diff record range types */ 23099d5e173STim Haley typedef enum diff_type { 23199d5e173STim Haley DDR_NONE = 0x1, 23299d5e173STim Haley DDR_INUSE = 0x2, 23399d5e173STim Haley DDR_FREE = 0x4 23499d5e173STim Haley } diff_type_t; 23599d5e173STim Haley 23699d5e173STim Haley /* 23799d5e173STim Haley * The diff reports back ranges of free or in-use objects. 23899d5e173STim Haley */ 23999d5e173STim Haley typedef struct dmu_diff_record { 24099d5e173STim Haley uint64_t ddr_type; 24199d5e173STim Haley uint64_t ddr_first; 24299d5e173STim Haley uint64_t ddr_last; 24399d5e173STim Haley } dmu_diff_record_t; 24499d5e173STim Haley 245ea8dc4b6Seschrock typedef struct zinject_record { 246ea8dc4b6Seschrock uint64_t zi_objset; 247ea8dc4b6Seschrock uint64_t zi_object; 248ea8dc4b6Seschrock uint64_t zi_start; 249ea8dc4b6Seschrock uint64_t zi_end; 250ea8dc4b6Seschrock uint64_t zi_guid; 251ea8dc4b6Seschrock uint32_t zi_level; 252ea8dc4b6Seschrock uint32_t zi_error; 253ea8dc4b6Seschrock uint64_t zi_type; 254ea8dc4b6Seschrock uint32_t zi_freq; 2558956713aSEric Schrock uint32_t zi_failfast; 25688ecc943SGeorge Wilson char zi_func[MAXNAMELEN]; 2578f18d1faSGeorge Wilson uint32_t zi_iotype; 258468c413aSTim Haley int32_t zi_duration; 259468c413aSTim Haley uint64_t zi_timer; 260283b8460SGeorge.Wilson uint32_t zi_cmd; 261283b8460SGeorge.Wilson uint32_t zi_pad; 262ea8dc4b6Seschrock } zinject_record_t; 263ea8dc4b6Seschrock 264ea8dc4b6Seschrock #define ZINJECT_NULL 0x1 265ea8dc4b6Seschrock #define ZINJECT_FLUSH_ARC 0x2 266ea8dc4b6Seschrock #define ZINJECT_UNLOAD_SPA 0x4 267ea8dc4b6Seschrock 268283b8460SGeorge.Wilson typedef enum zinject_type { 269283b8460SGeorge.Wilson ZINJECT_UNINITIALIZED, 270283b8460SGeorge.Wilson ZINJECT_DATA_FAULT, 271283b8460SGeorge.Wilson ZINJECT_DEVICE_FAULT, 272283b8460SGeorge.Wilson ZINJECT_LABEL_FAULT, 273283b8460SGeorge.Wilson ZINJECT_IGNORED_WRITES, 274283b8460SGeorge.Wilson ZINJECT_PANIC, 275283b8460SGeorge.Wilson ZINJECT_DELAY_IO, 276283b8460SGeorge.Wilson } zinject_type_t; 277283b8460SGeorge.Wilson 278ecd6cf80Smarks typedef struct zfs_share { 279ecd6cf80Smarks uint64_t z_exportdata; 280ecd6cf80Smarks uint64_t z_sharedata; 281ecd6cf80Smarks uint64_t z_sharetype; /* 0 = share, 1 = unshare */ 282ecd6cf80Smarks uint64_t z_sharemax; /* max length of share string */ 283ecd6cf80Smarks } zfs_share_t; 284ecd6cf80Smarks 285de8267e0Stimh /* 286de8267e0Stimh * ZFS file systems may behave the usual, POSIX-compliant way, where 287de8267e0Stimh * name lookups are case-sensitive. They may also be set up so that 288de8267e0Stimh * all the name lookups are case-insensitive, or so that only some 289de8267e0Stimh * lookups, the ones that set an FIGNORECASE flag, are case-insensitive. 290de8267e0Stimh */ 291de8267e0Stimh typedef enum zfs_case { 292de8267e0Stimh ZFS_CASE_SENSITIVE, 293de8267e0Stimh ZFS_CASE_INSENSITIVE, 294de8267e0Stimh ZFS_CASE_MIXED 295de8267e0Stimh } zfs_case_t; 296de8267e0Stimh 297fa9e4066Sahrens typedef struct zfs_cmd { 2984445fffbSMatthew Ahrens char zc_name[MAXPATHLEN]; /* name of pool or dataset */ 2994445fffbSMatthew Ahrens uint64_t zc_nvlist_src; /* really (char *) */ 3004445fffbSMatthew Ahrens uint64_t zc_nvlist_src_size; 3014445fffbSMatthew Ahrens uint64_t zc_nvlist_dst; /* really (char *) */ 3024445fffbSMatthew Ahrens uint64_t zc_nvlist_dst_size; 3034445fffbSMatthew Ahrens boolean_t zc_nvlist_dst_filled; /* put an nvlist in dst? */ 3044445fffbSMatthew Ahrens int zc_pad2; 3054445fffbSMatthew Ahrens 3064445fffbSMatthew Ahrens /* 3074445fffbSMatthew Ahrens * The following members are for legacy ioctls which haven't been 3084445fffbSMatthew Ahrens * converted to the new method. 3094445fffbSMatthew Ahrens */ 3104445fffbSMatthew Ahrens uint64_t zc_history; /* really (char *) */ 31155434c77Sek char zc_value[MAXPATHLEN * 2]; 3123cb34c60Sahrens char zc_string[MAXNAMELEN]; 313ea8dc4b6Seschrock uint64_t zc_guid; 314990b4856Slling uint64_t zc_nvlist_conf; /* really (char *) */ 315990b4856Slling uint64_t zc_nvlist_conf_size; 316fa9e4066Sahrens uint64_t zc_cookie; 317fa9e4066Sahrens uint64_t zc_objset_type; 318ecd6cf80Smarks uint64_t zc_perm_action; 3194445fffbSMatthew Ahrens uint64_t zc_history_len; 32006eeb2adSek uint64_t zc_history_offset; 32155434c77Sek uint64_t zc_obj; 322478ed9adSEric Taylor uint64_t zc_iflags; /* internal to zfs(7fs) */ 323ecd6cf80Smarks zfs_share_t zc_share; 324fa9e4066Sahrens dmu_objset_stats_t zc_objset_stats; 325fa9e4066Sahrens struct drr_begin zc_begin_record; 326ea8dc4b6Seschrock zinject_record_t zc_inject_record; 327*5d7b4d43SMatthew Ahrens uint32_t zc_defer_destroy; 328*5d7b4d43SMatthew Ahrens uint32_t zc_flags; 329c99e4bdcSChris Kirby uint64_t zc_action_handle; 330c99e4bdcSChris Kirby int zc_cleanup_fd; 33199d5e173STim Haley uint8_t zc_pad[4]; /* alignment */ 332a7f53a56SChris Kirby uint64_t zc_sendobj; 333a7f53a56SChris Kirby uint64_t zc_fromobj; 334a7f53a56SChris Kirby uint64_t zc_createtxg; 33599d5e173STim Haley zfs_stat_t zc_stat; 336fa9e4066Sahrens } zfs_cmd_t; 337fa9e4066Sahrens 33814843421SMatthew Ahrens typedef struct zfs_useracct { 33914843421SMatthew Ahrens char zu_domain[256]; 34014843421SMatthew Ahrens uid_t zu_rid; 34114843421SMatthew Ahrens uint32_t zu_pad; 34214843421SMatthew Ahrens uint64_t zu_space; 34314843421SMatthew Ahrens } zfs_useracct_t; 34414843421SMatthew Ahrens 345c99e4bdcSChris Kirby #define ZFSDEV_MAX_MINOR (1 << 16) 346c99e4bdcSChris Kirby #define ZFS_MIN_MINOR (ZFSDEV_MAX_MINOR + 1) 347a0965f35Sbonwick 3481195e687SMark J Musante #define ZPOOL_EXPORT_AFTER_SPLIT 0x1 3491195e687SMark J Musante 350fa9e4066Sahrens #ifdef _KERNEL 351fa9e4066Sahrens 352da6c28aaSamw typedef struct zfs_creat { 353de8267e0Stimh nvlist_t *zct_zplprops; 354da6c28aaSamw nvlist_t *zct_props; 355da6c28aaSamw } zfs_creat_t; 356da6c28aaSamw 357fa9e4066Sahrens extern dev_info_t *zfs_dip; 358fa9e4066Sahrens 359ecd6cf80Smarks extern int zfs_secpolicy_snapshot_perms(const char *name, cred_t *cr); 360ecd6cf80Smarks extern int zfs_secpolicy_rename_perms(const char *from, 361ecd6cf80Smarks const char *to, cred_t *cr); 362ecd6cf80Smarks extern int zfs_secpolicy_destroy_perms(const char *name, cred_t *cr); 363fa9e4066Sahrens extern int zfs_busy(void); 364fc7a6e3fSWill Andrews extern int zfs_unmount_snap(const char *); 3653b2aab18SMatthew Ahrens extern void zfs_destroy_unmount_origin(const char *); 366fa9e4066Sahrens 367c99e4bdcSChris Kirby /* 368c99e4bdcSChris Kirby * ZFS minor numbers can refer to either a control device instance or 369c99e4bdcSChris Kirby * a zvol. Depending on the value of zss_type, zss_data points to either 370c99e4bdcSChris Kirby * a zvol_state_t or a zfs_onexit_t. 371c99e4bdcSChris Kirby */ 372c99e4bdcSChris Kirby enum zfs_soft_state_type { 373c99e4bdcSChris Kirby ZSST_ZVOL, 374c99e4bdcSChris Kirby ZSST_CTLDEV 375c99e4bdcSChris Kirby }; 376c99e4bdcSChris Kirby 377c99e4bdcSChris Kirby typedef struct zfs_soft_state { 378c99e4bdcSChris Kirby enum zfs_soft_state_type zss_type; 379c99e4bdcSChris Kirby void *zss_data; 380c99e4bdcSChris Kirby } zfs_soft_state_t; 381c99e4bdcSChris Kirby 382c99e4bdcSChris Kirby extern void *zfsdev_get_soft_state(minor_t minor, 383c99e4bdcSChris Kirby enum zfs_soft_state_type which); 384c99e4bdcSChris Kirby extern minor_t zfsdev_minor_alloc(void); 385c99e4bdcSChris Kirby 386c99e4bdcSChris Kirby extern void *zfsdev_state; 387c99e4bdcSChris Kirby extern kmutex_t zfsdev_state_lock; 388c99e4bdcSChris Kirby 389fa9e4066Sahrens #endif /* _KERNEL */ 390fa9e4066Sahrens 391fa9e4066Sahrens #ifdef __cplusplus 392fa9e4066Sahrens } 393fa9e4066Sahrens #endif 394fa9e4066Sahrens 395fa9e4066Sahrens #endif /* _SYS_ZFS_IOCTL_H */ 396