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
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
|
/*
* 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 create UBI volumes.
*
* Authors: Artem Bityutskiy <dedekind@infradead.org>
* Frank Haverkamp <haver@vnet.ibm.com>
*/
#define PROGRAM_VERSION "1.1"
#define PROGRAM_NAME "ubimkvol"
#include <stdio.h>
#include <stdint.h>
#include <getopt.h>
#include <stdlib.h>
#include <string.h>
#include <libubi.h>
#include "common.h"
#include "ubiutils-common.h"
/* The variables below are set by command line arguments */
struct args {
int vol_id;
int vol_type;
long long bytes;
int lebs;
int alignment;
const char *name;
const char *node;
int maxavs;
};
static struct args args = {
.vol_type = UBI_DYNAMIC_VOLUME,
.bytes = -1,
.lebs = -1,
.alignment = 1,
.vol_id = UBI_VOL_NUM_AUTO,
};
static const char doc[] = PROGRAM_NAME " version " PROGRAM_VERSION
" - a tool to create UBI volumes.";
static const char optionsstr[] =
"-a, --alignment=<alignment> volume alignment (default is 1)\n"
"-n, --vol_id=<volume ID> UBI volume ID, if not specified, the volume ID\n"
" will be assigned automatically\n"
"-N, --name=<name> volume name\n"
"-s, --size=<bytes> volume size volume size in bytes, kilobytes (KiB)\n"
" or megabytes (MiB)\n"
"-S, --lebs=<LEBs count> alternative way to give volume size in logical\n"
" eraseblocks\n"
"-m, --maxavsize set volume size to maximum available size\n"
"-t, --type=<static|dynamic> volume type (dynamic, static), default is dynamic\n"
"-h, -?, --help print help message\n"
"-V, --version print program version";
static const char usage[] =
"Usage: " PROGRAM_NAME " <UBI device node file name> [-h] [-a <alignment>] [-n <volume ID>] [-N <name>]\n"
"\t\t\t[-s <bytes>] [-S <LEBs>] [-t <static|dynamic>] [-V] [-m]\n"
"\t\t\t[--alignment=<alignment>][--vol_id=<volume ID>] [--name=<name>]\n"
"\t\t\t[--size=<bytes>] [--lebs=<LEBs>] [--type=<static|dynamic>] [--help]\n"
"\t\t\t[--version] [--maxavsize]\n\n"
"Example: " PROGRAM_NAME " /dev/ubi0 -s 20MiB -N config_data - create a 20 Megabytes volume\n"
" named \"config_data\" on UBI device /dev/ubi0.";
static const struct option long_options[] = {
{ .name = "alignment", .has_arg = 1, .flag = NULL, .val = 'a' },
{ .name = "vol_id", .has_arg = 1, .flag = NULL, .val = 'n' },
{ .name = "name", .has_arg = 1, .flag = NULL, .val = 'N' },
{ .name = "size", .has_arg = 1, .flag = NULL, .val = 's' },
{ .name = "lebs", .has_arg = 1, .flag = NULL, .val = 'S' },
{ .name = "type", .has_arg = 1, .flag = NULL, .val = 't' },
{ .name = "help", .has_arg = 0, .flag = NULL, .val = 'h' },
{ .name = "version", .has_arg = 0, .flag = NULL, .val = 'V' },
{ .name = "maxavsize", .has_arg = 0, .flag = NULL, .val = 'm' },
{ NULL, 0, NULL, 0},
};
static int param_sanity_check(void)
{
int len;
if (args.bytes == -1 && !args.maxavs && args.lebs == -1)
return errmsg("volume size was not specified (use -h for help)");
if ((args.bytes != -1 && (args.maxavs || args.lebs != -1)) ||
(args.lebs != -1 && (args.maxavs || args.bytes != -1)) ||
(args.maxavs && (args.bytes != -1 || args.lebs != -1)))
return errmsg("size specified with more then one option");
if (args.name == NULL)
return errmsg("volume name was not specified (use -h for help)");
len = strlen(args.name);
if (len > UBI_MAX_VOLUME_NAME)
return errmsg("too long name (%d symbols), max is %d", len, UBI_MAX_VOLUME_NAME);
return 0;
}
static int parse_opt(int argc, char * const argv[])
{
while (1) {
int key, error = 0;
key = getopt_long(argc, argv, "a:n:N:s:S:t:h?Vm", long_options, NULL);
if (key == -1)
break;
switch (key) {
case 't':
if (!strcmp(optarg, "dynamic"))
args.vol_type = UBI_DYNAMIC_VOLUME;
else if (!strcmp(optarg, "static"))
args.vol_type = UBI_STATIC_VOLUME;
else
return errmsg("bad volume type: \"%s\"", optarg);
break;
case 's':
args.bytes = ubiutils_get_bytes(optarg);
if (args.bytes <= 0)
return errmsg("bad volume size: \"%s\"", optarg);
break;
case 'S':
args.lebs = simple_strtoull(optarg, &error);
if (error || args.lebs <= 0)
return errmsg("bad LEB count: \"%s\"", optarg);
break;
case 'a':
args.alignment = simple_strtoul(optarg, &error);
if (error || args.alignment <= 0)
return errmsg("bad volume alignment: \"%s\"", optarg);
break;
case 'n':
args.vol_id = simple_strtoul(optarg, &error);
if (error || args.vol_id < 0)
return errmsg("bad volume ID: " "\"%s\"", optarg);
break;
case 'N':
args.name = optarg;
break;
case 'h':
case '?':
printf("%s\n\n", doc);
printf("%s\n\n", usage);
printf("%s\n", optionsstr);
exit(EXIT_SUCCESS);
case 'V':
fprintf(stderr, "%s\n", PROGRAM_VERSION);
exit(EXIT_SUCCESS);
case 'm':
args.maxavs = 1;
break;
case ':':
return errmsg("parameter is missing");
default:
fprintf(stderr, "Use -h for help\n");
return -1;
}
}
if (optind == argc)
return errmsg("UBI device name was not specified (use -h for help)");
else if (optind != argc - 1)
return errmsg("more then one UBI device specified (use -h for help)");
args.node = argv[optind];
if (param_sanity_check())
return -1;
return 0;
}
int main(int argc, char * const argv[])
{
int err;
libubi_t libubi;
struct ubi_dev_info dev_info;
struct ubi_vol_info vol_info;
struct ubi_mkvol_request req;
err = parse_opt(argc, argv);
if (err)
return err;
libubi = libubi_open();
if (!libubi) {
if (errno == 0)
return errmsg("UBI is not present in the system");
return sys_errmsg("cannot open libubi");
}
err = ubi_probe_node(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) {
if (errno == ENODEV)
errmsg("\"%s\" is not an UBI device node", args.node);
else
sys_errmsg("error while probing \"%s\"", args.node);
goto out_libubi;
}
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;
}
if (dev_info.avail_bytes == 0) {
errmsg("UBI device does not have free logical eraseblocks");
goto out_libubi;
}
if (args.maxavs) {
args.bytes = dev_info.avail_bytes;
printf("Set volume size to %lld\n", args.bytes);
}
if (args.lebs != -1) {
args.bytes = dev_info.leb_size;
args.bytes -= dev_info.leb_size % args.alignment;
args.bytes *= args.lebs;
}
req.vol_id = args.vol_id;
req.alignment = args.alignment;
req.bytes = args.bytes;
req.vol_type = args.vol_type;
req.name = args.name;
err = ubi_mkvol(libubi, args.node, &req);
if (err < 0) {
sys_errmsg("cannot UBI create volume");
goto out_libubi;
}
args.vol_id = req.vol_id;
/* Print information about the created device */
err = ubi_get_vol_info1(libubi, dev_info.dev_num, args.vol_id, &vol_info);
if (err) {
sys_errmsg("cannot get information about newly created UBI volume");
goto out_libubi;
}
printf("Volume ID %d, size %d LEBs (", vol_info.vol_id, vol_info.rsvd_lebs);
ubiutils_print_bytes(vol_info.rsvd_bytes, 0);
printf("), LEB size ");
ubiutils_print_bytes(vol_info.leb_size, 1);
printf(", %s, name \"%s\", alignment %d\n",
req.vol_type == UBI_DYNAMIC_VOLUME ? "dynamic" : "static",
vol_info.name, vol_info.alignment);
libubi_close(libubi);
return 0;
out_libubi:
libubi_close(libubi);
return -1;
}
|
