summaryrefslogtreecommitdiffstats
path: root/commands/ubi.c
blob: 94da799b8c73612dff616963721ca6e83e6fc10a (plain)
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
#include <common.h>
#include <command.h>
#include <fs.h>
#include <fcntl.h>
#include <ioctl.h>
#include <errno.h>
#include <getopt.h>
#include <linux/mtd/mtd.h>
#include <linux/kernel.h>
#include <linux/mtd/mtd-abi.h>
#include <mtd/ubi-user.h>
#include <mtd/ubi-media.h>

static int do_ubimkvol(int argc, char *argv[])
{
	struct ubi_mkvol_req req;
	int fd, ret;
	uint64_t size;

	if (argc != 4)
		return COMMAND_ERROR_USAGE;

	size = strtoull_suffix(argv[3], NULL, 0);
	req.name_len = min_t(int, strlen(argv[2]), UBI_VOL_NAME_MAX);
	strncpy(req.name, argv[2], req.name_len);
	req.name[req.name_len] = 0;

	req.vol_type = UBI_DYNAMIC_VOLUME;
	req.bytes = size;
	req.vol_id = UBI_VOL_NUM_AUTO;
	req.alignment = 1;

	fd = open(argv[1], O_WRONLY);
	if (fd < 0) {
		perror("open");
		return 1;
	}

	ret = ioctl(fd, UBI_IOCMKVOL, &req);
	if (ret)
		printf("failed to create: %s\n", strerror(-ret));
	close(fd);

	return ret ? 1 : 0;
}


BAREBOX_CMD_HELP_START(ubimkvol)
BAREBOX_CMD_HELP_TEXT("Create an UBI volume on UBIDEV with NAME and SIZE.")
BAREBOX_CMD_HELP_TEXT("If SIZE is 0 all available space is used for the volume.")
BAREBOX_CMD_HELP_END

BAREBOX_CMD_START(ubimkvol)
	.cmd		= do_ubimkvol,
	BAREBOX_CMD_DESC("create an UBI volume")
	BAREBOX_CMD_OPTS("UBIDEV NAME SIZE")
	BAREBOX_CMD_GROUP(CMD_GRP_PART)
	BAREBOX_CMD_HELP(cmd_ubimkvol_help)
BAREBOX_CMD_END


static int do_ubiattach(int argc, char *argv[])
{
	int opt;
	struct mtd_info_user user;
	int fd, ret;
	int vid_hdr_offset = 0;
	int devnum = UBI_DEV_NUM_AUTO;

	while((opt = getopt(argc, argv, "d:O:")) > 0) {
		switch(opt) {
		case 'd':
			devnum = simple_strtoul(optarg, NULL, 0);
			break;
		case 'O':
			vid_hdr_offset = simple_strtoul(optarg, NULL, 0);
			break;
		default:
			return COMMAND_ERROR_USAGE;
		}
	}

	if (optind == argc)
		return COMMAND_ERROR_USAGE;

	fd = open(argv[optind], O_RDWR);
	if (fd < 0) {
		perror("open");
		return 1;
	}

	ret = ioctl(fd, MEMGETINFO, &user);
	if (ret) {
		printf("MEMGETINFO failed: %s\n", strerror(-ret));
		goto err;
	}

	ret = ubi_attach_mtd_dev(user.mtd, devnum, vid_hdr_offset, 20);
	if (ret < 0)
		printf("failed to attach: %s\n", strerror(-ret));
	else
		ret = 0;
err:
	close(fd);

	return ret ? 1 : 0;
}

BAREBOX_CMD_HELP_START(ubiattach)
BAREBOX_CMD_HELP_TEXT("Options:")
BAREBOX_CMD_HELP_OPT ("-d DEVNUM",  "device number")
BAREBOX_CMD_HELP_OPT ("-O OFFS",  "VID header offset")
BAREBOX_CMD_HELP_END

BAREBOX_CMD_START(ubiattach)
	.cmd		= do_ubiattach,
	BAREBOX_CMD_DESC("attach mtd device to UBI")
	BAREBOX_CMD_OPTS("[-dO] MTDDEV")
	BAREBOX_CMD_GROUP(CMD_GRP_PART)
	BAREBOX_CMD_HELP(cmd_ubiattach_help)
BAREBOX_CMD_END

static int do_ubidetach(int argc, char *argv[])
{
	int ubi_num, ret;

	if (argc != 2)
		return COMMAND_ERROR_USAGE;

	ubi_num = simple_strtoul(argv[1], NULL, 0);
	ret = ubi_detach_mtd_dev(ubi_num, 1);

	if (ret)
		printf("failed to detach: %s\n", strerror(-ret));

	return ret;
}

BAREBOX_CMD_START(ubidetach)
	.cmd		= do_ubidetach,
	BAREBOX_CMD_DESC("detach an UBI device")
	BAREBOX_CMD_OPTS("UBINUM")
	BAREBOX_CMD_GROUP(CMD_GRP_PART)
BAREBOX_CMD_END

static int do_ubirmvol(int argc, char *argv[])
{
	struct ubi_mkvol_req req;
	int fd, ret;

	if (argc != 3)
		return COMMAND_ERROR_USAGE;

	strncpy(req.name, argv[2], UBI_VOL_NAME_MAX);
	req.name[UBI_VOL_NAME_MAX] = 0;

	fd = open(argv[1], O_WRONLY);
	if (fd < 0) {
		perror("open");
		return 1;
	}

	ret = ioctl(fd, UBI_IOCRMVOL, &req);
	if (ret)
		printf("failed to delete: %s\n", strerror(-ret));
	close(fd);

	return ret ? 1 : 0;
}

BAREBOX_CMD_HELP_START(ubirmvol)
BAREBOX_CMD_HELP_TEXT("Delete UBI volume NAME from UBIDEV")
BAREBOX_CMD_HELP_END

BAREBOX_CMD_START(ubirmvol)
	.cmd		= do_ubirmvol,
	BAREBOX_CMD_DESC("delete an UBI volume")
	BAREBOX_CMD_OPTS("UBIDEV NAME")
	BAREBOX_CMD_GROUP(CMD_GRP_PART)
	BAREBOX_CMD_HELP(cmd_ubirmvol_help)
BAREBOX_CMD_END