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 fs_state_set("/overlay", FS_STATE_PENDING);
66 overlay_delete(mp, false);
67 mount(mp, "/", NULL, MS_REMOUNT, 0);
69 ULOG_INFO("%s is not mounted, erasing it\n", v->blk);
77 jffs2_mark(int argc, char **argv)
79 __u32 deadc0de = __cpu_to_be32(0xdeadc0de);
84 if (ask_user(argc, argv))
87 v = volume_find("rootfs_data");
89 ULOG_ERR("MTD partition 'rootfs_data' not found\n");
93 fd = open(v->blk, O_WRONLY);
94 ULOG_INFO("%s - marking with deadc0de\n", v->blk);
96 ULOG_ERR("opening %s failed\n", v->blk);
100 sz = write(fd, &deadc0de, sizeof(deadc0de));
104 ULOG_ERR("writing %s failed: %s\n", v->blk, strerror(errno));
111 int main(int argc, char **argv)
113 if (!strcmp(*argv, "jffs2mark"))
114 return jffs2_mark(argc, argv);
115 return jffs2_reset(argc, argv);