sys/cddl/contrib/opensolaris/uts/common/fs/zfs/sys/zfs_ioctl.h

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