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.
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.
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]
23 * Copyright 2009 Sun Microsystems, Inc. All rights reserved.
24 * Use is subject to license terms.
31 #include <sys/fs/zfs.h>
32 #include <sys/zfs_ioctl.h>
33 #include <sys/zfs_acl.h>
35 #include <sys/nvpair.h>
50 struct libzfs_handle {
54 FILE *libzfs_sharetab;
55 zpool_handle_t *libzfs_pool_handles;
56 uu_avl_pool_t *libzfs_ns_avlpool;
57 uu_avl_t *libzfs_ns_avl;
58 uint64_t libzfs_ns_gen;
59 int libzfs_desc_active;
60 char libzfs_action[1024];
61 char libzfs_desc[1024];
64 void *libzfs_sharehdl; /* libshare handle */
65 uint_t libzfs_shareflags;
66 boolean_t libzfs_mnttab_enable;
67 avl_tree_t libzfs_mnttab_cache;
69 #define ZFSSHARE_MISS 0x01 /* Didn't find entry in cache */
72 libzfs_handle_t *zfs_hdl;
73 zpool_handle_t *zpool_hdl;
74 char zfs_name[ZFS_MAXNAMELEN];
75 zfs_type_t zfs_type; /* type including snapshot */
76 zfs_type_t zfs_head_type; /* type excluding snapshot */
77 dmu_objset_stats_t zfs_dmustats;
79 nvlist_t *zfs_user_props;
80 boolean_t zfs_mntcheck;
82 uint8_t *zfs_props_table;
86 * This is different from checking zfs_type, because it will also catch
87 * snapshots of volumes.
89 #define ZFS_IS_VOLUME(zhp) ((zhp)->zfs_head_type == ZFS_TYPE_VOLUME)
92 libzfs_handle_t *zpool_hdl;
93 zpool_handle_t *zpool_next;
94 char zpool_name[ZPOOL_MAXNAMELEN];
96 size_t zpool_config_size;
97 nvlist_t *zpool_config;
98 nvlist_t *zpool_old_config;
99 nvlist_t *zpool_props;
100 diskaddr_t zpool_start_block;
110 * The following can be used as a bitmask and any new values
111 * added must preserve that capability.
114 SHARED_NOT_SHARED = 0x0,
120 int zfs_error(libzfs_handle_t *, int, const char *);
121 int zfs_error_fmt(libzfs_handle_t *, int, const char *, ...);
122 void zfs_error_aux(libzfs_handle_t *, const char *, ...);
123 void *zfs_alloc(libzfs_handle_t *, size_t);
124 void *zfs_realloc(libzfs_handle_t *, void *, size_t, size_t);
125 char *zfs_strdup(libzfs_handle_t *, const char *);
126 int no_memory(libzfs_handle_t *);
128 int zfs_standard_error(libzfs_handle_t *, int, const char *);
129 int zfs_standard_error_fmt(libzfs_handle_t *, int, const char *, ...);
130 int zpool_standard_error(libzfs_handle_t *, int, const char *);
131 int zpool_standard_error_fmt(libzfs_handle_t *, int, const char *, ...);
133 int get_dependents(libzfs_handle_t *, boolean_t, const char *, char ***,
137 int zprop_parse_value(libzfs_handle_t *, nvpair_t *, int, zfs_type_t,
138 nvlist_t *, char **, uint64_t *, const char *);
139 int zprop_expand_list(libzfs_handle_t *hdl, zprop_list_t **plp,
143 * Use this changelist_gather() flag to force attempting mounts
144 * on each change node regardless of whether or not it is currently
147 #define CL_GATHER_MOUNT_ALWAYS 1
149 typedef struct prop_changelist prop_changelist_t;
151 int zcmd_alloc_dst_nvlist(libzfs_handle_t *, zfs_cmd_t *, size_t);
152 int zcmd_write_src_nvlist(libzfs_handle_t *, zfs_cmd_t *, nvlist_t *);
153 int zcmd_write_conf_nvlist(libzfs_handle_t *, zfs_cmd_t *, nvlist_t *);
154 int zcmd_expand_dst_nvlist(libzfs_handle_t *, zfs_cmd_t *);
155 int zcmd_read_dst_nvlist(libzfs_handle_t *, zfs_cmd_t *, nvlist_t **);
156 void zcmd_free_nvlists(zfs_cmd_t *);
158 int changelist_prefix(prop_changelist_t *);
159 int changelist_postfix(prop_changelist_t *);
160 void changelist_rename(prop_changelist_t *, const char *, const char *);
161 void changelist_remove(prop_changelist_t *, const char *);
162 void changelist_free(prop_changelist_t *);
163 prop_changelist_t *changelist_gather(zfs_handle_t *, zfs_prop_t, int, int);
164 int changelist_unshare(prop_changelist_t *, zfs_share_proto_t *);
165 int changelist_haszonedchild(prop_changelist_t *);
167 void remove_mountpoint(zfs_handle_t *);
168 int create_parents(libzfs_handle_t *, char *, int);
169 boolean_t isa_child_of(const char *dataset, const char *parent);
171 zfs_handle_t *make_dataset_handle(libzfs_handle_t *, const char *);
173 int zpool_open_silent(libzfs_handle_t *, const char *, zpool_handle_t **);
175 int zvol_create_link(libzfs_handle_t *, const char *);
176 int zvol_remove_link(libzfs_handle_t *, const char *);
177 int zpool_iter_zvol(zpool_handle_t *, int (*)(const char *, void *), void *);
178 boolean_t zpool_name_valid(libzfs_handle_t *, boolean_t, const char *);
180 void namespace_clear(libzfs_handle_t *);
183 * libshare (sharemgr) interfaces used internally.
186 extern int zfs_init_libshare(libzfs_handle_t *, int);
187 extern void zfs_uninit_libshare(libzfs_handle_t *);
188 extern int zfs_parse_options(char *, zfs_share_proto_t);
190 extern int zfs_unshare_proto(zfs_handle_t *,
191 const char *, zfs_share_proto_t *);
196 * This is FreeBSD version of ioctl, because Solaris' ioctl() updates
197 * zc_nvlist_dst_size even if an error is returned, on FreeBSD if an
198 * error is returned zc_nvlist_dst_size won't be updated.
201 zcmd_ioctl(int fd, unsigned long cmd, zfs_cmd_t *zc)
206 oldsize = zc->zc_nvlist_dst_size;
207 ret = ioctl(fd, cmd, zc);
208 if (ret == 0 && oldsize < zc->zc_nvlist_dst_size) {
215 #define ioctl(fd, cmd, zc) zcmd_ioctl((fd), (cmd), (zc))
222 #endif /* _LIBFS_IMPL_H */