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 2008 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 #ifndef _SYS_ZFS_IOCTL_H 27 #define _SYS_ZFS_IOCTL_H 28 29 #pragma ident "%Z%%M% %I% %E% SMI" 30 31 #include <sys/cred.h> 32 #include <sys/dmu.h> 33 #include <sys/zio.h> 34 #include <sys/dsl_deleg.h> 35 36 #ifdef _KERNEL 37 #include <sys/nvpair.h> 38 #endif /* _KERNEL */ 39 40 #ifdef __cplusplus 41 extern "C" { 42 #endif 43 44 /* 45 * Property values for snapdir 46 */ 47 #define ZFS_SNAPDIR_HIDDEN 0 48 #define ZFS_SNAPDIR_VISIBLE 1 49 50 #define DMU_BACKUP_STREAM_VERSION (1ULL) 51 #define DMU_BACKUP_HEADER_VERSION (2ULL) 52 #define DMU_BACKUP_MAGIC 0x2F5bacbacULL 53 54 #define DRR_FLAG_CLONE (1<<0) 55 #define DRR_FLAG_CI_DATA (1<<1) 56 57 /* 58 * zfs ioctl command structure 59 */ 60 typedef struct dmu_replay_record { 61 enum { 62 DRR_BEGIN, DRR_OBJECT, DRR_FREEOBJECTS, 63 DRR_WRITE, DRR_FREE, DRR_END, 64 } drr_type; 65 uint32_t drr_payloadlen; 66 union { 67 struct drr_begin { 68 uint64_t drr_magic; 69 uint64_t drr_version; 70 uint64_t drr_creation_time; 71 dmu_objset_type_t drr_type; 72 uint32_t drr_flags; 73 uint64_t drr_toguid; 74 uint64_t drr_fromguid; 75 char drr_toname[MAXNAMELEN]; 76 } drr_begin; 77 struct drr_end { 78 zio_cksum_t drr_checksum; 79 } drr_end; 80 struct drr_object { 81 uint64_t drr_object; 82 dmu_object_type_t drr_type; 83 dmu_object_type_t drr_bonustype; 84 uint32_t drr_blksz; 85 uint32_t drr_bonuslen; 86 uint8_t drr_checksum; 87 uint8_t drr_compress; 88 uint8_t drr_pad[6]; 89 /* bonus content follows */ 90 } drr_object; 91 struct drr_freeobjects { 92 uint64_t drr_firstobj; 93 uint64_t drr_numobjs; 94 } drr_freeobjects; 95 struct drr_write { 96 uint64_t drr_object; 97 dmu_object_type_t drr_type; 98 uint32_t drr_pad; 99 uint64_t drr_offset; 100 uint64_t drr_length; 101 /* content follows */ 102 } drr_write; 103 struct drr_free { 104 uint64_t drr_object; 105 uint64_t drr_offset; 106 uint64_t drr_length; 107 } drr_free; 108 } drr_u; 109 } dmu_replay_record_t; 110 111 typedef struct zinject_record { 112 uint64_t zi_objset; 113 uint64_t zi_object; 114 uint64_t zi_start; 115 uint64_t zi_end; 116 uint64_t zi_guid; 117 uint32_t zi_level; 118 uint32_t zi_error; 119 uint64_t zi_type; 120 uint32_t zi_freq; 121 uint32_t zi_pad; /* pad out to 64 bit alignment */ 122 } zinject_record_t; 123 124 #define ZINJECT_NULL 0x1 125 #define ZINJECT_FLUSH_ARC 0x2 126 #define ZINJECT_UNLOAD_SPA 0x4 127 128 typedef struct zfs_share { 129 uint64_t z_exportdata; 130 uint64_t z_sharedata; 131 uint64_t z_sharetype; /* 0 = share, 1 = unshare */ 132 uint64_t z_sharemax; /* max length of share string */ 133 } zfs_share_t; 134 135 /* 136 * ZFS file systems may behave the usual, POSIX-compliant way, where 137 * name lookups are case-sensitive. They may also be set up so that 138 * all the name lookups are case-insensitive, or so that only some 139 * lookups, the ones that set an FIGNORECASE flag, are case-insensitive. 140 */ 141 typedef enum zfs_case { 142 ZFS_CASE_SENSITIVE, 143 ZFS_CASE_INSENSITIVE, 144 ZFS_CASE_MIXED 145 } zfs_case_t; 146 147 typedef struct zfs_cmd { 148 char zc_name[MAXPATHLEN]; 149 char zc_value[MAXPATHLEN * 2]; 150 char zc_string[MAXNAMELEN]; 151 uint64_t zc_guid; 152 uint64_t zc_nvlist_conf; /* really (char *) */ 153 uint64_t zc_nvlist_conf_size; 154 uint64_t zc_nvlist_src; /* really (char *) */ 155 uint64_t zc_nvlist_src_size; 156 uint64_t zc_nvlist_dst; /* really (char *) */ 157 uint64_t zc_nvlist_dst_size; 158 uint64_t zc_cookie; 159 uint64_t zc_objset_type; 160 uint64_t zc_perm_action; 161 uint64_t zc_history; /* really (char *) */ 162 uint64_t zc_history_len; 163 uint64_t zc_history_offset; 164 uint64_t zc_obj; 165 zfs_share_t zc_share; 166 dmu_objset_stats_t zc_objset_stats; 167 struct drr_begin zc_begin_record; 168 zinject_record_t zc_inject_record; 169 } zfs_cmd_t; 170 171 #define ZVOL_MAX_MINOR (1 << 16) 172 #define ZFS_MIN_MINOR (ZVOL_MAX_MINOR + 1) 173 174 #ifdef _KERNEL 175 176 typedef struct zfs_creat { 177 nvlist_t *zct_zplprops; 178 nvlist_t *zct_props; 179 } zfs_creat_t; 180 181 extern dev_info_t *zfs_dip; 182 183 extern int zfs_secpolicy_snapshot_perms(const char *name, cred_t *cr); 184 extern int zfs_secpolicy_rename_perms(const char *from, 185 const char *to, cred_t *cr); 186 extern int zfs_secpolicy_destroy_perms(const char *name, cred_t *cr); 187 extern int zfs_busy(void); 188 extern int zfs_unmount_snap(char *, void *); 189 190 #endif /* _KERNEL */ 191 192 #ifdef __cplusplus 193 } 194 #endif 195 196 #endif /* _SYS_ZFS_IOCTL_H */ 197