1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
|
/*
* Copyright (c) International Business Machines Corp., 2006
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
* the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/*
* An utility to remove UBI volumes.
*
* Authors: Artem Bityutskiy <dedekind@infradead.org>
* Frank Haverkamp <haver@vnet.ibm.com>
*/
#include <stdio.h>
#include <stdint.h>
#include <getopt.h>
#include <stdlib.h>
#include <string.h>
#include <libubi.h>
#include "common.h"
#define PROGRAM_VERSION "1.0"
#define PROGRAM_NAME "ubirmvol"
/* The variables below are set by command line arguments */
struct args {
int vol_id;
const char *node;
const char *name;
/* For deprecated -d option handling */
int devn;
char dev_name[256];
};
static struct args args = {
.vol_id = -1,
.devn = -1,
};
static const char *doc = PROGRAM_NAME " version " PROGRAM_VERSION
" - a tool to remove UBI volumes.";
static const char *optionsstr =
"-n, --vol_id=<volume id> volume ID to remove\n"
"-N, --name=<volume name> volume name to remove\n"
"-h, -?, --help print help message\n"
"-V, --version print program version\n\n"
"The following is a compatibility option which is deprecated, do not use it\n"
"-d, --devn=<devn> UBI device number - may be used instead of the UBI\n"
" device node name in which case the utility assumes\n"
" that the device node is \"/dev/ubi<devn>\"";
static const char *usage =
"Usage: " PROGRAM_NAME " <UBI device node file name> [-n <volume id>] [--vol_id=<volume id>]\n\n"
" [-N <volume name>] [--name=<volume name>] [-h] [--help]\n\n"
"Example: " PROGRAM_NAME "/dev/ubi0 -n 1 - remove UBI volume 1 from UBI device corresponding\n"
" to /dev/ubi0\n"
" " PROGRAM_NAME "/dev/ubi0 -N my_vol - remove UBI named \"my_vol\" from UBI device\n"
" corresponding to /dev/ubi0";
static const struct option long_options[] = {
{ .name = "vol_id", .has_arg = 1, .flag = NULL, .val = 'n' },
{ .name = "name", .has_arg = 1, .flag = NULL, .val = 'N' },
{ .name = "help", .has_arg = 0, .flag = NULL, .val = 'h' },
{ .name = "version", .has_arg = 0, .flag = NULL, .val = 'V' },
/* Deprecated -d option */
{ .name = "devn", .has_arg = 1, .flag = NULL, .val = 'd' },
{ NULL, 0, NULL, 0},
};
static int param_sanity_check(void)
{
if (args.vol_id == -1 && !args.name) {
errmsg("please, specify either volume ID or volume name");
return -1;
}
if (args.vol_id != -1 && args.name) {
errmsg("please, specify either volume ID or volume name, not both");
return -1;
}
return 0;
}
static int parse_opt(int argc, char * const argv[])
{
while (1) {
int key;
char *endp;
key = getopt_long(argc, argv, "n:N:h?Vd:", long_options, NULL);
if (key == -1)
break;
switch (key) {
case 'n':
args.vol_id = strtoul(optarg, &endp, 0);
if (*endp != '\0' || endp == optarg || args.vol_id < 0) {
errmsg("bad volume ID: " "\"%s\"", optarg);
return -1;
}
break;
case 'N':
args.name = optarg;
break;
case 'h':
case '?':
fprintf(stderr, "%s\n\n", doc);
fprintf(stderr, "%s\n\n", usage);
fprintf(stderr, "%s\n", optionsstr);
exit(EXIT_SUCCESS);
case 'd':
/* Handle deprecated -d option */
warnmsg("-d is depricated and will be removed, do not use it");
args.devn = strtoul(optarg, &endp, 0);
if (*endp != '\0' || endp == optarg || args.devn < 0)
return errmsg("bad UBI device number: " "\"%s\"", optarg);
break;
case 'V':
fprintf(stderr, "%s\n", PROGRAM_VERSION);
exit(EXIT_SUCCESS);
case ':':
errmsg("parameter is missing");
return -1;
default:
fprintf(stderr, "Use -h for help\n");
return -1;
}
}
/* Handle deprecated -d option */
if (args.devn != -1) {
sprintf(args.dev_name, "/dev/ubi%d", args.devn);
args.node = args.dev_name;
} else {
if (optind == argc) {
errmsg("UBI device name was not specified (use -h for help)");
return -1;
} else if (optind != argc - 1) {
errmsg("more then one UBI device specified (use -h for help)");
return -1;
}
args.node = argv[optind];
}
if (param_sanity_check())
return -1;
return 0;
}
int main(int argc, char * const argv[])
{
int err;
libubi_t libubi;
err = parse_opt(argc, argv);
if (err)
return -1;
libubi = libubi_open(1);
if (libubi == NULL)
return sys_errmsg("cannot open libubi");
err = ubi_node_type(libubi, args.node);
if (err == 2) {
errmsg("\"%s\" is an UBI volume node, not an UBI device node",
args.node);
goto out_libubi;
} else if (err < 0) {
errmsg("\"%s\" is not an UBI device node", args.node);
goto out_libubi;
}
if (args.name) {
struct ubi_dev_info dev_info;
struct ubi_vol_info vol_info;
err = ubi_get_dev_info(libubi, args.node, &dev_info);
if (err) {
sys_errmsg("cannot get information about UBI device \"%s\"",
args.node);
goto out_libubi;
}
err = ubi_get_vol_info1_nm(libubi, dev_info.dev_num,
args.name, &vol_info);
if (err) {
sys_errmsg("cannot find UBI volume \"%s\"", args.name);
goto out_libubi;
}
args.vol_id = vol_info.vol_id;
}
err = ubi_rmvol(libubi, args.node, args.vol_id);
if (err) {
sys_errmsg("cannot UBI remove volume");
goto out_libubi;
}
libubi_close(libubi);
return 0;
out_libubi:
libubi_close(libubi);
return -1;
}
|
