1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (c) 2017 Kyle J. Kneitinger <[email protected]>
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 */
27
28 #include <sys/cdefs.h>
29 __FBSDID("$FreeBSD$");
30
31 #include "be.h"
32 #include "be_impl.h"
33
34 /*
35 * Usage
36 */
37 int
libbe_errno(libbe_handle_t * lbh)38 libbe_errno(libbe_handle_t *lbh)
39 {
40
41 return (lbh->error);
42 }
43
44
45 const char *
libbe_error_description(libbe_handle_t * lbh)46 libbe_error_description(libbe_handle_t *lbh)
47 {
48
49 switch (lbh->error) {
50 case BE_ERR_INVALIDNAME:
51 return ("invalid boot environment name");
52
53 case BE_ERR_EXISTS:
54 return ("boot environment name already taken");
55
56 case BE_ERR_NOENT:
57 return ("specified boot environment does not exist");
58
59 case BE_ERR_PERMS:
60 return ("insufficient permissions");
61
62 case BE_ERR_DESTROYACT:
63 return ("cannot destroy active boot environment");
64
65 case BE_ERR_DESTROYMNT:
66 return ("cannot destroy mounted boot env unless forced");
67
68 case BE_ERR_BADPATH:
69 return ("path not suitable for operation");
70
71 case BE_ERR_PATHBUSY:
72 return ("specified path is busy");
73
74 case BE_ERR_PATHLEN:
75 return ("provided path name exceeds maximum length limit");
76
77 case BE_ERR_BADMOUNT:
78 return ("mountpoint is not \"/\"");
79
80 case BE_ERR_NOORIGIN:
81 return ("could not open snapshot's origin");
82
83 case BE_ERR_MOUNTED:
84 return ("boot environment is already mounted");
85
86 case BE_ERR_NOMOUNT:
87 return ("boot environment is not mounted");
88
89 case BE_ERR_ZFSOPEN:
90 return ("calling zfs_open() failed");
91
92 case BE_ERR_ZFSCLONE:
93 return ("error when calling zfs_clone() to create boot env");
94
95 case BE_ERR_IO:
96 return ("input/output error");
97
98 case BE_ERR_NOPOOL:
99 return ("operation not supported on this pool");
100
101 case BE_ERR_NOMEM:
102 return ("insufficient memory");
103
104 case BE_ERR_UNKNOWN:
105 return ("unknown error");
106
107 case BE_ERR_INVORIGIN:
108 return ("invalid origin");
109
110 case BE_ERR_HASCLONES:
111 return ("snapshot has clones");
112
113 default:
114 assert(lbh->error == BE_ERR_SUCCESS);
115 return ("no error");
116 }
117 }
118
119
120 void
libbe_print_on_error(libbe_handle_t * lbh,bool val)121 libbe_print_on_error(libbe_handle_t *lbh, bool val)
122 {
123
124 lbh->print_on_err = val;
125 libzfs_print_on_error(lbh->lzh, val);
126 }
127
128
129 int
set_error(libbe_handle_t * lbh,be_error_t err)130 set_error(libbe_handle_t *lbh, be_error_t err)
131 {
132
133 lbh->error = err;
134 if (lbh->print_on_err && (err != BE_ERR_SUCCESS))
135 fprintf(stderr, "%s\n", libbe_error_description(lbh));
136
137 return (err);
138 }
139