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) 2012 by Delphix. All rights reserved. 25 */ 26 27 #ifndef _LIBZFS_IMPL_H 28 #define _LIBZFS_IMPL_H 29 30 #include <sys/dmu.h> 31 #include <sys/fs/zfs.h> 32 #include <sys/zfs_ioctl.h> 33 #include <sys/spa.h> 34 #include <sys/nvpair.h> 35 36 #include <libuutil.h> 37 #include <libzfs.h> 38 #include <libshare.h> 39 #include <libzfs_core.h> 40 41 #include <fm/libtopo.h> 42 43 #ifdef __cplusplus 44 extern "C" { 45 #endif 46 47 #ifdef VERIFY 48 #undef VERIFY 49 #endif 50 #define VERIFY verify 51 52 typedef struct libzfs_fru { 53 char *zf_device; 54 char *zf_fru; 55 struct libzfs_fru *zf_chain; 56 struct libzfs_fru *zf_next; 57 } libzfs_fru_t; 58 59 struct libzfs_handle { 60 int libzfs_error; 61 int libzfs_fd; 62 FILE *libzfs_mnttab; 63 FILE *libzfs_sharetab; 64 zpool_handle_t *libzfs_pool_handles; 65 uu_avl_pool_t *libzfs_ns_avlpool; 66 uu_avl_t *libzfs_ns_avl; 67 uint64_t libzfs_ns_gen; 68 int libzfs_desc_active; 69 char libzfs_action[1024]; 70 char libzfs_desc[1024]; 71 int libzfs_printerr; 72 int libzfs_storeerr; /* stuff error messages into buffer */ 73 void *libzfs_sharehdl; /* libshare handle */ 74 uint_t libzfs_shareflags; 75 boolean_t libzfs_mnttab_enable; 76 avl_tree_t libzfs_mnttab_cache; 77 int libzfs_pool_iter; 78 topo_hdl_t *libzfs_topo_hdl; 79 libzfs_fru_t **libzfs_fru_hash; 80 libzfs_fru_t *libzfs_fru_list; 81 char libzfs_chassis_id[256]; 82 }; 83 84 #define ZFSSHARE_MISS 0x01 /* Didn't find entry in cache */ 85 86 struct zfs_handle { 87 libzfs_handle_t *zfs_hdl; 88 zpool_handle_t *zpool_hdl; 89 char zfs_name[ZFS_MAXNAMELEN]; 90 zfs_type_t zfs_type; /* type including snapshot */ 91 zfs_type_t zfs_head_type; /* type excluding snapshot */ 92 dmu_objset_stats_t zfs_dmustats; 93 nvlist_t *zfs_props; 94 nvlist_t *zfs_user_props; 95 nvlist_t *zfs_recvd_props; 96 boolean_t zfs_mntcheck; 97 char *zfs_mntopts; 98 uint8_t *zfs_props_table; 99 }; 100 101 /* 102 * This is different from checking zfs_type, because it will also catch 103 * snapshots of volumes. 104 */ 105 #define ZFS_IS_VOLUME(zhp) ((zhp)->zfs_head_type == ZFS_TYPE_VOLUME) 106 107 struct zpool_handle { 108 libzfs_handle_t *zpool_hdl; 109 zpool_handle_t *zpool_next; 110 char zpool_name[ZPOOL_MAXNAMELEN]; 111 int zpool_state; 112 size_t zpool_config_size; 113 nvlist_t *zpool_config; 114 nvlist_t *zpool_old_config; 115 nvlist_t *zpool_props; 116 diskaddr_t zpool_start_block; 117 }; 118 119 typedef enum { 120 PROTO_NFS = 0, 121 PROTO_SMB = 1, 122 PROTO_END = 2 123 } zfs_share_proto_t; 124 125 /* 126 * The following can be used as a bitmask and any new values 127 * added must preserve that capability. 128 */ 129 typedef enum { 130 SHARED_NOT_SHARED = 0x0, 131 SHARED_NFS = 0x2, 132 SHARED_SMB = 0x4 133 } zfs_share_type_t; 134 135 int zfs_error(libzfs_handle_t *, int, const char *); 136 int zfs_error_fmt(libzfs_handle_t *, int, const char *, ...); 137 void zfs_error_aux(libzfs_handle_t *, const char *, ...); 138 void *zfs_alloc(libzfs_handle_t *, size_t); 139 void *zfs_realloc(libzfs_handle_t *, void *, size_t, size_t); 140 char *zfs_asprintf(libzfs_handle_t *, const char *, ...); 141 char *zfs_strdup(libzfs_handle_t *, const char *); 142 int no_memory(libzfs_handle_t *); 143 144 int zfs_standard_error(libzfs_handle_t *, int, const char *); 145 int zfs_standard_error_fmt(libzfs_handle_t *, int, const char *, ...); 146 int zpool_standard_error(libzfs_handle_t *, int, const char *); 147 int zpool_standard_error_fmt(libzfs_handle_t *, int, const char *, ...); 148 149 int get_dependents(libzfs_handle_t *, boolean_t, const char *, char ***, 150 size_t *); 151 zfs_handle_t *make_dataset_handle_zc(libzfs_handle_t *, zfs_cmd_t *); 152 153 154 int zprop_parse_value(libzfs_handle_t *, nvpair_t *, int, zfs_type_t, 155 nvlist_t *, char **, uint64_t *, const char *); 156 int zprop_expand_list(libzfs_handle_t *hdl, zprop_list_t **plp, 157 zfs_type_t type); 158 159 /* 160 * Use this changelist_gather() flag to force attempting mounts 161 * on each change node regardless of whether or not it is currently 162 * mounted. 163 */ 164 #define CL_GATHER_MOUNT_ALWAYS 1 165 166 typedef struct prop_changelist prop_changelist_t; 167 168 int zcmd_alloc_dst_nvlist(libzfs_handle_t *, zfs_cmd_t *, size_t); 169 int zcmd_write_src_nvlist(libzfs_handle_t *, zfs_cmd_t *, nvlist_t *); 170 int zcmd_write_conf_nvlist(libzfs_handle_t *, zfs_cmd_t *, nvlist_t *); 171 int zcmd_expand_dst_nvlist(libzfs_handle_t *, zfs_cmd_t *); 172 int zcmd_read_dst_nvlist(libzfs_handle_t *, zfs_cmd_t *, nvlist_t **); 173 void zcmd_free_nvlists(zfs_cmd_t *); 174 175 int changelist_prefix(prop_changelist_t *); 176 int changelist_postfix(prop_changelist_t *); 177 void changelist_rename(prop_changelist_t *, const char *, const char *); 178 void changelist_remove(prop_changelist_t *, const char *); 179 void changelist_free(prop_changelist_t *); 180 prop_changelist_t *changelist_gather(zfs_handle_t *, zfs_prop_t, int, int); 181 int changelist_unshare(prop_changelist_t *, zfs_share_proto_t *); 182 int changelist_haszonedchild(prop_changelist_t *); 183 184 void remove_mountpoint(zfs_handle_t *); 185 int create_parents(libzfs_handle_t *, char *, int); 186 boolean_t isa_child_of(const char *dataset, const char *parent); 187 188 zfs_handle_t *make_dataset_handle(libzfs_handle_t *, const char *); 189 190 int zpool_open_silent(libzfs_handle_t *, const char *, zpool_handle_t **); 191 192 boolean_t zpool_name_valid(libzfs_handle_t *, boolean_t, const char *); 193 194 int zfs_validate_name(libzfs_handle_t *hdl, const char *path, int type, 195 boolean_t modifying); 196 197 void namespace_clear(libzfs_handle_t *); 198 199 /* 200 * libshare (sharemgr) interfaces used internally. 201 */ 202 203 extern int zfs_init_libshare(libzfs_handle_t *, int); 204 extern void zfs_uninit_libshare(libzfs_handle_t *); 205 extern int zfs_parse_options(char *, zfs_share_proto_t); 206 207 extern int zfs_unshare_proto(zfs_handle_t *, 208 const char *, zfs_share_proto_t *); 209 210 extern void libzfs_fru_clear(libzfs_handle_t *, boolean_t); 211 212 #ifdef __cplusplus 213 } 214 #endif 215 216 #endif /* _LIBZFS_IMPL_H */ 217