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 2009 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #ifndef _LIBFS_IMPL_H 28 #define _LIBFS_IMPL_H 29 30 #include <sys/dmu.h> 31 #include <sys/fs/zfs.h> 32 #include <sys/zfs_ioctl.h> 33 #include <sys/zfs_acl.h> 34 #include <sys/spa.h> 35 #include <sys/nvpair.h> 36 37 #include <libuutil.h> 38 #include <libzfs.h> 39 #include <libshare.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 char *libzfs_log_str; 72 int libzfs_printerr; 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 boolean_t zfs_mntcheck; 96 char *zfs_mntopts; 97 uint8_t *zfs_props_table; 98 }; 99 100 /* 101 * This is different from checking zfs_type, because it will also catch 102 * snapshots of volumes. 103 */ 104 #define ZFS_IS_VOLUME(zhp) ((zhp)->zfs_head_type == ZFS_TYPE_VOLUME) 105 106 struct zpool_handle { 107 libzfs_handle_t *zpool_hdl; 108 zpool_handle_t *zpool_next; 109 char zpool_name[ZPOOL_MAXNAMELEN]; 110 int zpool_state; 111 size_t zpool_config_size; 112 nvlist_t *zpool_config; 113 nvlist_t *zpool_old_config; 114 nvlist_t *zpool_props; 115 diskaddr_t zpool_start_block; 116 }; 117 118 typedef enum { 119 PROTO_NFS = 0, 120 PROTO_SMB = 1, 121 PROTO_END = 2 122 } zfs_share_proto_t; 123 124 /* 125 * The following can be used as a bitmask and any new values 126 * added must preserve that capability. 127 */ 128 typedef enum { 129 SHARED_NOT_SHARED = 0x0, 130 SHARED_ISCSI = 0x1, 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_strdup(libzfs_handle_t *, const char *); 141 int no_memory(libzfs_handle_t *); 142 143 int zfs_standard_error(libzfs_handle_t *, int, const char *); 144 int zfs_standard_error_fmt(libzfs_handle_t *, int, const char *, ...); 145 int zpool_standard_error(libzfs_handle_t *, int, const char *); 146 int zpool_standard_error_fmt(libzfs_handle_t *, int, const char *, ...); 147 148 int get_dependents(libzfs_handle_t *, boolean_t, const char *, char ***, 149 size_t *); 150 151 152 int zprop_parse_value(libzfs_handle_t *, nvpair_t *, int, zfs_type_t, 153 nvlist_t *, char **, uint64_t *, const char *); 154 int zprop_expand_list(libzfs_handle_t *hdl, zprop_list_t **plp, 155 zfs_type_t type); 156 157 /* 158 * Use this changelist_gather() flag to force attempting mounts 159 * on each change node regardless of whether or not it is currently 160 * mounted. 161 */ 162 #define CL_GATHER_MOUNT_ALWAYS 1 163 164 typedef struct prop_changelist prop_changelist_t; 165 166 int zcmd_alloc_dst_nvlist(libzfs_handle_t *, zfs_cmd_t *, size_t); 167 int zcmd_write_src_nvlist(libzfs_handle_t *, zfs_cmd_t *, nvlist_t *); 168 int zcmd_write_conf_nvlist(libzfs_handle_t *, zfs_cmd_t *, nvlist_t *); 169 int zcmd_expand_dst_nvlist(libzfs_handle_t *, zfs_cmd_t *); 170 int zcmd_read_dst_nvlist(libzfs_handle_t *, zfs_cmd_t *, nvlist_t **); 171 void zcmd_free_nvlists(zfs_cmd_t *); 172 173 int changelist_prefix(prop_changelist_t *); 174 int changelist_postfix(prop_changelist_t *); 175 void changelist_rename(prop_changelist_t *, const char *, const char *); 176 void changelist_remove(prop_changelist_t *, const char *); 177 void changelist_free(prop_changelist_t *); 178 prop_changelist_t *changelist_gather(zfs_handle_t *, zfs_prop_t, int, int); 179 int changelist_unshare(prop_changelist_t *, zfs_share_proto_t *); 180 int changelist_haszonedchild(prop_changelist_t *); 181 182 void remove_mountpoint(zfs_handle_t *); 183 int create_parents(libzfs_handle_t *, char *, int); 184 boolean_t isa_child_of(const char *dataset, const char *parent); 185 186 zfs_handle_t *make_dataset_handle(libzfs_handle_t *, const char *); 187 188 int zpool_open_silent(libzfs_handle_t *, const char *, zpool_handle_t **); 189 190 boolean_t zpool_name_valid(libzfs_handle_t *, boolean_t, const char *); 191 192 void namespace_clear(libzfs_handle_t *); 193 194 /* 195 * libshare (sharemgr) interfaces used internally. 196 */ 197 198 extern int zfs_init_libshare(libzfs_handle_t *, int); 199 extern void zfs_uninit_libshare(libzfs_handle_t *); 200 extern int zfs_parse_options(char *, zfs_share_proto_t); 201 202 extern int zfs_unshare_proto(zfs_handle_t *, 203 const char *, zfs_share_proto_t *); 204 205 extern void libzfs_fru_clear(libzfs_handle_t *, boolean_t); 206 207 #ifdef __cplusplus 208 } 209 #endif 210 211 #endif /* _LIBFS_IMPL_H */ 212