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 2006 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 } drr_object; 81 struct drr_freeobjects { 82 uint64_t drr_firstobj; 83 uint64_t drr_numobjs; 84 } drr_freeobjects; 85 struct drr_write { 86 uint64_t drr_object; 87 dmu_object_type_t drr_type; 88 uint32_t drr_pad; 89 uint64_t drr_offset; 90 uint64_t drr_length; 91 } drr_write; 92 struct drr_free { 93 uint64_t drr_object; 94 uint64_t drr_offset; 95 uint64_t drr_length; 96 } drr_free; 97 } drr_u; 98 } dmu_replay_record_t; 99 100 typedef struct zinject_record { 101 uint64_t zi_objset; 102 uint64_t zi_object; 103 uint64_t zi_start; 104 uint64_t zi_end; 105 uint64_t zi_guid; 106 uint32_t zi_level; 107 uint32_t zi_error; 108 uint64_t zi_type; 109 uint32_t zi_freq; 110 } zinject_record_t; 111 112 #define ZINJECT_NULL 0x1 113 #define ZINJECT_FLUSH_ARC 0x2 114 #define ZINJECT_UNLOAD_SPA 0x4 115 116 typedef struct zfs_cmd { 117 char zc_name[MAXPATHLEN]; 118 char zc_prop_name[MAXNAMELEN]; 119 char zc_prop_value[MAXPATHLEN]; 120 char zc_root[MAXPATHLEN]; 121 char zc_filename[MAXNAMELEN]; 122 uint32_t zc_intsz; 123 uint32_t zc_numints; 124 uint64_t zc_guid; 125 uint64_t zc_config_src; /* really (char *) */ 126 uint64_t zc_config_src_size; 127 uint64_t zc_config_dst; /* really (char *) */ 128 uint64_t zc_config_dst_size; 129 uint64_t zc_cookie; 130 uint64_t zc_cred; 131 uint64_t zc_dev; 132 uint64_t zc_volsize; 133 uint64_t zc_volblocksize; 134 uint64_t zc_objset_type; 135 dmu_objset_stats_t zc_objset_stats; 136 struct drr_begin zc_begin_record; 137 zinject_record_t zc_inject_record; 138 zbookmark_t zc_bookmark; 139 } zfs_cmd_t; 140 141 #define ZVOL_MAX_MINOR (1 << 16) 142 #define ZFS_MIN_MINOR (ZVOL_MAX_MINOR + 1) 143 144 #ifdef _KERNEL 145 146 extern dev_info_t *zfs_dip; 147 148 extern int zfs_secpolicy_write(const char *dataset, const char *, cred_t *cr); 149 extern int zfs_busy(void); 150 151 extern int zvol_check_volsize(zfs_cmd_t *zc, uint64_t blocksize); 152 extern int zvol_check_volblocksize(zfs_cmd_t *zc); 153 extern int zvol_get_stats(zfs_cmd_t *zc, objset_t *os); 154 extern void zvol_create_cb(objset_t *os, void *arg, dmu_tx_t *tx); 155 extern int zvol_create_minor(zfs_cmd_t *zc); 156 extern int zvol_remove_minor(zfs_cmd_t *zc); 157 extern int zvol_set_volsize(zfs_cmd_t *zc); 158 extern int zvol_set_volblocksize(zfs_cmd_t *zc); 159 extern int zvol_open(dev_t *devp, int flag, int otyp, cred_t *cr); 160 extern int zvol_close(dev_t dev, int flag, int otyp, cred_t *cr); 161 extern int zvol_strategy(buf_t *bp); 162 extern int zvol_read(dev_t dev, uio_t *uiop, cred_t *cr); 163 extern int zvol_write(dev_t dev, uio_t *uiop, cred_t *cr); 164 extern int zvol_aread(dev_t dev, struct aio_req *aio, cred_t *cr); 165 extern int zvol_awrite(dev_t dev, struct aio_req *aio, cred_t *cr); 166 extern int zvol_ioctl(dev_t dev, int cmd, intptr_t arg, int flag, cred_t *cr, 167 int *rvalp); 168 extern int zvol_busy(void); 169 extern void zvol_init(void); 170 extern void zvol_fini(void); 171 172 #endif /* _KERNEL */ 173 174 #ifdef __cplusplus 175 } 176 #endif 177 178 #endif /* _SYS_ZFS_IOCTL_H */ 179