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
|
/*
* Copyright (C) 2007 Nokia Corporation.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published by
* the Free Software Foundation.
*
* 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., 51
* Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
/*
* An utility to attach MTD devices to UBI.
*
* Author: Artem Bityutskiy
*/
#define PROGRAM_NAME "ubiattach"
#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"
#define DEFAULT_CTRL_DEV "/dev/ubi_ctrl"
/* The variables below are set by command line arguments */
struct args {
int devn;
int mtdn;
int vidoffs;
const char *node;
const char *dev;
};
static struct args args = {
.devn = UBI_DEV_NUM_AUTO,
.mtdn = -1,
.vidoffs = 0,
.node = NULL,
.dev = NULL,
};
static const char doc[] = PROGRAM_NAME " version " VERSION
" - a tool to attach MTD device to UBI.";
static const char optionsstr[] =
"-d, --devn=<number> the number to assign to the newly created UBI device\n"
" (assigned automatically if this is not specified)\n"
"-p, --dev-path=<path> path to MTD device node to attach\n"
"-m, --mtdn=<number> MTD device number to attach (alternative method, e.g\n"
" if the character device node does not exist)\n"
"-O, --vid-hdr-offset VID header offset (do not specify this unless you really\n"
" know what you are doing, the default should be optimal)\n"
"-h, --help print help message\n"
"-V, --version print program version";
static const char usage[] =
"Usage: " PROGRAM_NAME " [<UBI control device node file name>]\n"
"\t[-m <MTD device number>] [-d <UBI device number>] [-p <path to device>]\n"
"\t[--mtdn=<MTD device number>] [--devn=<UBI device number>]\n"
"\t[--dev-path=<path to device>]\n"
"UBI control device defaults to " DEFAULT_CTRL_DEV " if not supplied.\n"
"Example 1: " PROGRAM_NAME " -p /dev/mtd0 - attach /dev/mtd0 to UBI\n"
"Example 2: " PROGRAM_NAME " -m 0 - attach MTD device 0 (mtd0) to UBI\n"
"Example 3: " PROGRAM_NAME " -m 0 -d 3 - attach MTD device 0 (mtd0) to UBI\n"
" and create UBI device number 3 (ubi3)";
static const struct option long_options[] = {
{ .name = "devn", .has_arg = 1, .flag = NULL, .val = 'd' },
{ .name = "dev-path", .has_arg = 1, .flag = NULL, .val = 'p' },
{ .name = "mtdn", .has_arg = 1, .flag = NULL, .val = 'm' },
{ .name = "vid-hdr-offset", .has_arg = 1, .flag = NULL, .val = 'O' },
{ .name = "help", .has_arg = 0, .flag = NULL, .val = 'h' },
{ .name = "version", .has_arg = 0, .flag = NULL, .val = 'V' },
{ NULL, 0, NULL, 0},
};
static int parse_opt(int argc, char * const argv[])
{
while (1) {
int key, error = 0;
key = getopt_long(argc, argv, "p:m:d:O:hV", long_options, NULL);
if (key == -1)
break;
switch (key) {
case 'p':
args.dev = optarg;
break;
case 'd':
args.devn = simple_strtoul(optarg, &error);
if (error || args.devn < 0)
return errmsg("bad UBI device number: \"%s\"", optarg);
break;
case 'm':
args.mtdn = simple_strtoul(optarg, &error);
if (error || args.mtdn < 0)
return errmsg("bad MTD device number: \"%s\"", optarg);
break;
case 'O':
args.vidoffs = simple_strtoul(optarg, &error);
if (error || args.vidoffs <= 0)
return errmsg("bad VID header offset: \"%s\"", optarg);
break;
case 'h':
printf("%s\n\n", doc);
printf("%s\n\n", usage);
printf("%s\n", optionsstr);
exit(EXIT_SUCCESS);
case 'V':
common_print_version();
exit(EXIT_SUCCESS);
case ':':
return errmsg("parameter is missing");
default:
fprintf(stderr, "Use -h for help\n");
return -1;
}
}
if (optind == argc)
args.node = DEFAULT_CTRL_DEV;
else if (optind != argc - 1)
return errmsg("more then one UBI control device specified (use -h for help)");
else
args.node = argv[optind];
if (args.mtdn == -1 && args.dev == NULL)
return errmsg("MTD device to attach was not specified (use -h for help)");
return 0;
}
int main(int argc, char * const argv[])
{
int err;
libubi_t libubi;
struct ubi_info ubi_info;
struct ubi_dev_info dev_info;
struct ubi_attach_request req;
err = parse_opt(argc, argv);
if (err)
return -1;
libubi = libubi_open();
if (!libubi) {
if (errno == 0)
return errmsg("UBI is not present in the system");
return sys_errmsg("cannot open libubi");
}
/*
* Make sure the kernel is fresh enough and this feature is supported.
*/
err = ubi_get_info(libubi, &ubi_info);
if (err) {
sys_errmsg("cannot get UBI information");
goto out_libubi;
}
if (ubi_info.ctrl_major == -1) {
errmsg("MTD attach/detach feature is not supported by your kernel");
goto out_libubi;
}
req.dev_num = args.devn;
req.mtd_num = args.mtdn;
req.vid_hdr_offset = args.vidoffs;
req.mtd_dev_node = args.dev;
err = ubi_attach(libubi, args.node, &req);
if (err) {
if (args.dev)
sys_errmsg("cannot attach \"%s\"", args.dev);
else
sys_errmsg("cannot attach mtd%d", args.mtdn);
goto out_libubi;
}
/* Print some information about the new UBI device */
err = ubi_get_dev_info1(libubi, req.dev_num, &dev_info);
if (err) {
sys_errmsg("cannot get information about newly created UBI device");
goto out_libubi;
}
printf("UBI device number %d, total %d LEBs (", dev_info.dev_num, dev_info.total_lebs);
ubiutils_print_bytes(dev_info.total_bytes, 0);
printf("), available %d LEBs (", dev_info.avail_lebs);
ubiutils_print_bytes(dev_info.avail_bytes, 0);
printf("), LEB size ");
ubiutils_print_bytes(dev_info.leb_size, 1);
printf("\n");
libubi_close(libubi);
return 0;
out_libubi:
libubi_close(libubi);
return -1;
}
|
