2 * Copyright (C) 2014 John Crispin <blogic@openwrt.org>
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU Lesser General Public License version 2.1
6 * as published by the Free Software Foundation
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
14 #include <sys/mount.h>
15 #include <sys/types.h>
18 #include <libubox/ulog.h>
27 #include "libfstools/libfstools.h"
28 #include "libfstools/volume.h"
31 ask_user(int argc
, char **argv
)
33 if ((argc
< 2) || strcmp(argv
[1], "-y")) {
34 ULOG_WARN("This will erase all settings and remove any installed packages. Are you sure? [N/y]\n");
43 jffs2_reset(int argc
, char **argv
)
48 if (ask_user(argc
, argv
))
51 if (find_filesystem("overlay")) {
52 ULOG_ERR("overlayfs not supported by kernel\n");
56 v
= volume_find("rootfs_data");
58 ULOG_ERR("MTD partition 'rootfs_data' not found\n");
62 mp
= find_mount_point(v
->blk
, 1);
64 ULOG_INFO("%s is mounted as %s, only erasing files\n", v
->blk
, mp
);
65 overlay_delete(mp
, false);
66 mount(mp
, "/", NULL
, MS_REMOUNT
, 0);
68 ULOG_INFO("%s is not mounted, erasing it\n", v
->blk
);
76 jffs2_mark(int argc
, char **argv
)
78 __u32 deadc0de
= __cpu_to_be32(0xdeadc0de);
83 if (ask_user(argc
, argv
))
86 v
= volume_find("rootfs_data");
88 ULOG_ERR("MTD partition 'rootfs_data' not found\n");
92 fd
= open(v
->blk
, O_WRONLY
);
93 ULOG_INFO("%s - marking with deadc0de\n", v
->blk
);
95 ULOG_ERR("opening %s failed\n", v
->blk
);
99 sz
= write(fd
, &deadc0de
, sizeof(deadc0de
));
103 ULOG_ERR("writing %s failed: %s\n", v
->blk
, strerror(errno
));
110 int main(int argc
, char **argv
)
112 if (!strcmp(*argv
, "jffs2mark"))
113 return jffs2_mark(argc
, argv
);
114 return jffs2_reset(argc
, argv
);