1 /* 2 * CDDL HEADER SART 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 /* 23 * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. 24 * Copyright (c) 2011 Pawel Jakub Dawidek <pawel@dawidek.net>. 25 * All rights reserved. 26 * Copyright (c) 2013 by Delphix. All rights reserved. 27 * Copyright (c) 2013 Martin Matuska <mm@FreeBSD.org>. All rights reserved. 28 */ 29 30 #ifndef _LIBZFS_IMPL_H 31 #define _LIBZFS_IMPL_H 32 33 #include <sys/dmu.h> 34 #include <sys/fs/zfs.h> 35 #include <sys/zfs_ioctl.h> 36 #include <sys/spa.h> 37 #include <sys/nvpair.h> 38 39 #include <libshare.h> 40 #include <libuutil.h> 41 #include <libzfs.h> 42 #include <libzfs_core.h> 43 #include <libzfs_compat.h> 44 45 #ifdef __cplusplus 46 extern "C" { 47 #endif 48 49 #ifdef VERIFY 50 #undef VERIFY 51 #endif 52 #define VERIFY verify 53 54 typedef struct libzfs_fru { 55 char *zf_device; 56 char *zf_fru; 57 struct libzfs_fru *zf_chain; 58 struct libzfs_fru *zf_next; 59 } libzfs_fru_t; 60 61 struct libzfs_handle { 62 int libzfs_error; 63 int libzfs_fd; 64 FILE *libzfs_mnttab; 65 FILE *libzfs_sharetab; 66 zpool_handle_t *libzfs_pool_handles; 67 uu_avl_pool_t *libzfs_ns_avlpool; 68 uu_avl_t *libzfs_ns_avl; 69 uint64_t libzfs_ns_gen; 70 int libzfs_desc_active; 71 char libzfs_action[1024]; 72 char libzfs_desc[1024]; 73 int libzfs_printerr; 74 int libzfs_storeerr; /* stuff error messages into buffer */ 75 void *libzfs_sharehdl; /* libshare handle */ 76 uint_t libzfs_shareflags; 77 boolean_t libzfs_mnttab_enable; 78 avl_tree_t libzfs_mnttab_cache; 79 int libzfs_pool_iter; 80 libzfs_fru_t **libzfs_fru_hash; 81 libzfs_fru_t *libzfs_fru_list; 82 char libzfs_chassis_id[256]; 83 }; 84 85 #define ZFSSHARE_MISS 0x01 /* Didn't find entry in cache */ 86 87 struct zfs_handle { 88 libzfs_handle_t *zfs_hdl; 89 zpool_handle_t *zpool_hdl; 90 char zfs_name[ZFS_MAXNAMELEN]; 91 zfs_type_t zfs_type; /* type including snapshot */ 92 zfs_type_t zfs_head_type; /* type excluding snapshot */ 93 dmu_objset_stats_t zfs_dmustats; 94 nvlist_t *zfs_props; 95 nvlist_t *zfs_user_props; 96 nvlist_t *zfs_recvd_props; 97 boolean_t zfs_mntcheck; 98 char *zfs_mntopts; 99 uint8_t *zfs_props_table; 100 }; 101 102 /* 103 * This is different from checking zfs_type, because it will also catch 104 * snapshots of volumes. 105 */ 106 #define ZFS_IS_VOLUME(zhp) ((zhp)->zfs_head_type == ZFS_TYPE_VOLUME) 107 108 struct zpool_handle { 109 libzfs_handle_t *zpool_hdl; 110 zpool_handle_t *zpool_next; 111 char zpool_name[ZPOOL_MAXNAMELEN]; 112 int zpool_state; 113 size_t zpool_config_size; 114 nvlist_t *zpool_config; 115 nvlist_t *zpool_old_config; 116 nvlist_t *zpool_props; 117 diskaddr_t zpool_start_block; 118 }; 119 120 typedef enum { 121 PROTO_NFS = 0, 122 PROTO_SMB = 1, 123 PROTO_END = 2 124 } zfs_share_proto_t; 125 126 /* 127 * The following can be used as a bitmask and any new values 128 * added must preserve that capability. 129 */ 130 typedef enum { 131 SHARED_NOT_SHARED = 0x0, 132 SHARED_NFS = 0x2, 133 SHARED_SMB = 0x4 134 } zfs_share_type_t; 135 136 int zfs_error(libzfs_handle_t *, int, const char *); 137 int zfs_error_fmt(libzfs_handle_t *, int, const char *, ...); 138 void zfs_error_aux(libzfs_handle_t *, const char *, ...); 139 void *zfs_alloc(libzfs_handle_t *, size_t); 140 void *zfs_realloc(libzfs_handle_t *, void *, size_t, size_t); 141 char *zfs_asprintf(libzfs_handle_t *, const char *, ...); 142 char *zfs_strdup(libzfs_handle_t *, const char *); 143 int no_memory(libzfs_handle_t *); 144 145 int zfs_standard_error(libzfs_handle_t *, int, const char *); 146 int zfs_standard_error_fmt(libzfs_handle_t *, int, const char *, ...); 147 int zpool_standard_error(libzfs_handle_t *, int, const char *); 148 int zpool_standard_error_fmt(libzfs_handle_t *, int, const char *, ...); 149 150 int get_dependents(libzfs_handle_t *, boolean_t, const char *, char ***, 151 size_t *); 152 zfs_handle_t *make_dataset_handle_zc(libzfs_handle_t *, zfs_cmd_t *); 153 zfs_handle_t *make_dataset_simple_handle_zc(zfs_handle_t *, zfs_cmd_t *); 154 155 int zprop_parse_value(libzfs_handle_t *, nvpair_t *, int, zfs_type_t, 156 nvlist_t *, char **, uint64_t *, const char *); 157 int zprop_expand_list(libzfs_handle_t *hdl, zprop_list_t **plp, 158 zfs_type_t type); 159 160 /* 161 * Use this changelist_gather() flag to force attempting mounts 162 * on each change node regardless of whether or not it is currently 163 * mounted. 164 */ 165 #define CL_GATHER_MOUNT_ALWAYS 0x01 166 /* 167 * Use this changelist_gather() flag to prevent unmounting of file systems. 168 */ 169 #define CL_GATHER_DONT_UNMOUNT 0x02 170 171 typedef struct prop_changelist prop_changelist_t; 172 173 int zcmd_alloc_dst_nvlist(libzfs_handle_t *, zfs_cmd_t *, size_t); 174 int zcmd_write_src_nvlist(libzfs_handle_t *, zfs_cmd_t *, nvlist_t *); 175 int zcmd_write_conf_nvlist(libzfs_handle_t *, zfs_cmd_t *, nvlist_t *); 176 int zcmd_expand_dst_nvlist(libzfs_handle_t *, zfs_cmd_t *); 177 int zcmd_read_dst_nvlist(libzfs_handle_t *, zfs_cmd_t *, nvlist_t **); 178 void zcmd_free_nvlists(zfs_cmd_t *); 179 180 int changelist_prefix(prop_changelist_t *); 181 int changelist_postfix(prop_changelist_t *); 182 void changelist_rename(prop_changelist_t *, const char *, const char *); 183 void changelist_remove(prop_changelist_t *, const char *); 184 void changelist_free(prop_changelist_t *); 185 prop_changelist_t *changelist_gather(zfs_handle_t *, zfs_prop_t, int, int); 186 int changelist_unshare(prop_changelist_t *, zfs_share_proto_t *); 187 int changelist_haszonedchild(prop_changelist_t *); 188 189 void remove_mountpoint(zfs_handle_t *); 190 int create_parents(libzfs_handle_t *, char *, int); 191 boolean_t isa_child_of(const char *dataset, const char *parent); 192 193 zfs_handle_t *make_dataset_handle(libzfs_handle_t *, const char *); 194 zfs_handle_t *make_bookmark_handle(zfs_handle_t *, const char *, 195 nvlist_t *props); 196 197 int zpool_open_silent(libzfs_handle_t *, const char *, zpool_handle_t **); 198 199 boolean_t zpool_name_valid(libzfs_handle_t *, boolean_t, const char *); 200 201 int zfs_validate_name(libzfs_handle_t *hdl, const char *path, int type, 202 boolean_t modifying); 203 204 void namespace_clear(libzfs_handle_t *); 205 206 /* 207 * libshare (sharemgr) interfaces used internally. 208 */ 209 210 extern int zfs_init_libshare(libzfs_handle_t *, int); 211 extern void zfs_uninit_libshare(libzfs_handle_t *); 212 extern int zfs_parse_options(char *, zfs_share_proto_t); 213 214 extern int zfs_unshare_proto(zfs_handle_t *, 215 const char *, zfs_share_proto_t *); 216 217 extern void libzfs_fru_clear(libzfs_handle_t *, boolean_t); 218 219 #ifdef __cplusplus 220 } 221 #endif 222 223 #endif /* _LIBZFS_IMPL_H */ 224