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 2007 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 __cplusplus 37 extern "C" { 38 #endif 39 40 /* 41 * Property values for snapdir 42 */ 43 #define ZFS_SNAPDIR_HIDDEN 0 44 #define ZFS_SNAPDIR_VISIBLE 1 45 46 #define DMU_BACKUP_VERSION (1ULL) 47 #define DMU_BACKUP_MAGIC 0x2F5bacbacULL 48 49 /* 50 * zfs ioctl command structure 51 */ 52 typedef struct dmu_replay_record { 53 enum { 54 DRR_BEGIN, DRR_OBJECT, DRR_FREEOBJECTS, 55 DRR_WRITE, DRR_FREE, DRR_END, 56 } drr_type; 57 uint32_t drr_pad; 58 union { 59 struct drr_begin { 60 uint64_t drr_magic; 61 uint64_t drr_version; 62 uint64_t drr_creation_time; 63 dmu_objset_type_t drr_type; 64 uint32_t drr_pad; 65 uint64_t drr_toguid; 66 uint64_t drr_fromguid; 67 char drr_toname[MAXNAMELEN]; 68 } drr_begin; 69 struct drr_end { 70 zio_cksum_t drr_checksum; 71 } drr_end; 72 struct drr_object { 73 uint64_t drr_object; 74 dmu_object_type_t drr_type; 75 dmu_object_type_t drr_bonustype; 76 uint32_t drr_blksz; 77 uint32_t drr_bonuslen; 78 uint8_t drr_checksum; 79 uint8_t drr_compress; 80 uint8_t drr_pad[6]; 81 /* bonus content follows */ 82 } drr_object; 83 struct drr_freeobjects { 84 uint64_t drr_firstobj; 85 uint64_t drr_numobjs; 86 } drr_freeobjects; 87 struct drr_write { 88 uint64_t drr_object; 89 dmu_object_type_t drr_type; 90 uint32_t drr_pad; 91 uint64_t drr_offset; 92 uint64_t drr_length; 93 /* content follows */ 94 } drr_write; 95 struct drr_free { 96 uint64_t drr_object; 97 uint64_t drr_offset; 98 uint64_t drr_length; 99 } drr_free; 100 } drr_u; 101 } dmu_replay_record_t; 102 103 typedef struct zinject_record { 104 uint64_t zi_objset; 105 uint64_t zi_object; 106 uint64_t zi_start; 107 uint64_t zi_end; 108 uint64_t zi_guid; 109 uint32_t zi_level; 110 uint32_t zi_error; 111 uint64_t zi_type; 112 uint32_t zi_freq; 113 uint32_t zi_pad; /* pad out to 64 bit alignment */ 114 } zinject_record_t; 115 116 #define ZINJECT_NULL 0x1 117 #define ZINJECT_FLUSH_ARC 0x2 118 #define ZINJECT_UNLOAD_SPA 0x4 119 120 typedef struct zfs_share { 121 uint64_t z_exportdata; 122 uint64_t z_sharedata; 123 uint64_t z_sharetype; /* 0 = share, 1 = unshare */ 124 uint64_t z_sharemax; /* max length of share string */ 125 } zfs_share_t; 126 127 typedef struct zfs_cmd { 128 char zc_name[MAXPATHLEN]; 129 char zc_value[MAXPATHLEN * 2]; 130 uint64_t zc_guid; 131 uint64_t zc_nvlist_src; /* really (char *) */ 132 uint64_t zc_nvlist_src_size; 133 uint64_t zc_nvlist_dst; /* really (char *) */ 134 uint64_t zc_nvlist_dst_size; 135 uint64_t zc_cookie; 136 uint64_t zc_objset_type; 137 uint64_t zc_perm_action; 138 uint64_t zc_history; /* really (char *) */ 139 uint64_t zc_history_len; 140 uint64_t zc_history_offset; 141 uint64_t zc_obj; 142 zfs_share_t zc_share; 143 dmu_objset_stats_t zc_objset_stats; 144 struct drr_begin zc_begin_record; 145 zinject_record_t zc_inject_record; 146 } zfs_cmd_t; 147 148 #define ZVOL_MAX_MINOR (1 << 16) 149 #define ZFS_MIN_MINOR (ZVOL_MAX_MINOR + 1) 150 151 #ifdef _KERNEL 152 153 extern dev_info_t *zfs_dip; 154 155 extern int zfs_secpolicy_snapshot_perms(const char *name, cred_t *cr); 156 extern int zfs_secpolicy_rename_perms(const char *from, 157 const char *to, cred_t *cr); 158 extern int zfs_secpolicy_destroy_perms(const char *name, cred_t *cr); 159 extern int zfs_busy(void); 160 extern int zfs_unmount_snap(char *, void *); 161 162 #endif /* _KERNEL */ 163 164 #ifdef __cplusplus 165 } 166 #endif 167 168 #endif /* _SYS_ZFS_IOCTL_H */ 169