xref: /titanic_50/usr/src/lib/libzfs/common/libzfs_impl.h (revision 1d842814faabbb6af3e2fe30a4bd61aa4a70eeb3)
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 /*
23  * Copyright 2007 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 #pragma ident	"%Z%%M%	%I%	%E% SMI"
31 
32 #include <sys/dmu.h>
33 #include <sys/fs/zfs.h>
34 #include <sys/zfs_ioctl.h>
35 #include <sys/zfs_acl.h>
36 #include <sys/nvpair.h>
37 
38 #include <libuutil.h>
39 #include <libzfs.h>
40 
41 #ifdef	__cplusplus
42 extern "C" {
43 #endif
44 
45 struct libzfs_handle {
46 	int libzfs_error;
47 	int libzfs_fd;
48 	FILE *libzfs_mnttab;
49 	FILE *libzfs_sharetab;
50 	uu_avl_pool_t *libzfs_ns_avlpool;
51 	uu_avl_t *libzfs_ns_avl;
52 	uint64_t libzfs_ns_gen;
53 	int libzfs_desc_active;
54 	char libzfs_action[1024];
55 	char libzfs_desc[1024];
56 	int libzfs_printerr;
57 };
58 
59 struct zfs_handle {
60 	libzfs_handle_t *zfs_hdl;
61 	char zfs_name[ZFS_MAXNAMELEN];
62 	zfs_type_t zfs_type; /* type including snapshot */
63 	zfs_type_t zfs_head_type; /* type excluding snapshot */
64 	dmu_objset_stats_t zfs_dmustats;
65 	nvlist_t *zfs_props;
66 	nvlist_t *zfs_user_props;
67 	boolean_t zfs_mntcheck;
68 	char *zfs_mntopts;
69 	char zfs_root[MAXPATHLEN];
70 };
71 
72 /*
73  * This is different from checking zfs_type, because it will also catch
74  * snapshots of volumes.
75  */
76 #define	ZFS_IS_VOLUME(zhp) ((zhp)->zfs_head_type == ZFS_TYPE_VOLUME)
77 
78 struct zpool_handle {
79 	libzfs_handle_t *zpool_hdl;
80 	char zpool_name[ZPOOL_MAXNAMELEN];
81 	int zpool_state;
82 	size_t zpool_config_size;
83 	nvlist_t *zpool_config;
84 	nvlist_t *zpool_old_config;
85 };
86 
87 int zfs_error(libzfs_handle_t *, int, const char *);
88 int zfs_error_fmt(libzfs_handle_t *, int, const char *, ...);
89 void zfs_error_aux(libzfs_handle_t *, const char *, ...);
90 void *zfs_alloc(libzfs_handle_t *, size_t);
91 void *zfs_realloc(libzfs_handle_t *, void *, size_t, size_t);
92 char *zfs_strdup(libzfs_handle_t *, const char *);
93 int no_memory(libzfs_handle_t *);
94 
95 int zfs_standard_error(libzfs_handle_t *, int, const char *);
96 int zfs_standard_error_fmt(libzfs_handle_t *, int, const char *, ...);
97 int zpool_standard_error(libzfs_handle_t *, int, const char *);
98 int zpool_standard_error_fmt(libzfs_handle_t *, int, const char *, ...);
99 
100 int get_dependents(libzfs_handle_t *, boolean_t, const char *, char ***,
101     size_t *);
102 
103 typedef struct prop_changelist prop_changelist_t;
104 
105 int zcmd_alloc_dst_nvlist(libzfs_handle_t *, zfs_cmd_t *, size_t);
106 int zcmd_write_src_nvlist(libzfs_handle_t *, zfs_cmd_t *, nvlist_t *, size_t *);
107 int zcmd_expand_dst_nvlist(libzfs_handle_t *, zfs_cmd_t *);
108 int zcmd_read_dst_nvlist(libzfs_handle_t *, zfs_cmd_t *, nvlist_t **);
109 void zcmd_free_nvlists(zfs_cmd_t *);
110 
111 int changelist_prefix(prop_changelist_t *);
112 int changelist_postfix(prop_changelist_t *);
113 void changelist_rename(prop_changelist_t *, const char *, const char *);
114 void changelist_remove(zfs_handle_t *, prop_changelist_t *);
115 void changelist_free(prop_changelist_t *);
116 prop_changelist_t *changelist_gather(zfs_handle_t *, zfs_prop_t, int);
117 int changelist_unshare(prop_changelist_t *);
118 int changelist_haszonedchild(prop_changelist_t *);
119 
120 void remove_mountpoint(zfs_handle_t *);
121 
122 zfs_handle_t *make_dataset_handle(libzfs_handle_t *, const char *);
123 int set_pool_health(nvlist_t *);
124 
125 int zpool_open_silent(libzfs_handle_t *, const char *, zpool_handle_t **);
126 
127 int zvol_create_link(libzfs_handle_t *, const char *);
128 int zvol_remove_link(libzfs_handle_t *, const char *);
129 int zpool_iter_zvol(zpool_handle_t *, int (*)(const char *, void *), void *);
130 
131 void namespace_clear(libzfs_handle_t *);
132 
133 #ifdef	__cplusplus
134 }
135 #endif
136 
137 #endif	/* _LIBFS_IMPL_H */
138