2 * Copyright (C) 2013 Felix Fietkau <nbd@openwrt.org>
3 * Copyright (C) 2013 John Crispin <blogic@openwrt.org>
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU Lesser General Public License version 2.1
7 * as published by the Free Software Foundation
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
15 #include <sys/mount.h>
16 #include <sys/types.h>
25 #include "../libc-compat.h"
31 mknod("/dev/null", 0666, makedev(1, 3));
35 early_console(const char *dev
)
41 ERROR("Failed to stat %s\n", dev
);
45 dd
= open(dev
, O_RDWR
);
47 dd
= open("/dev/null", O_RDWR
);
49 dup2(dd
, STDIN_FILENO
);
50 dup2(dd
, STDOUT_FILENO
);
51 dup2(dd
, STDERR_FILENO
);
53 if (dd
!= STDIN_FILENO
&&
54 dd
!= STDOUT_FILENO
&&
58 fcntl(STDERR_FILENO
, F_SETFL
, fcntl(STDERR_FILENO
, F_GETFL
) | O_NONBLOCK
);
64 unsigned int oldumask
= umask(0);
66 mount("proc", "/proc", "proc", MS_NOATIME
| MS_NODEV
| MS_NOEXEC
| MS_NOSUID
, 0);
67 mount("sysfs", "/sys", "sysfs", MS_NOATIME
| MS_NODEV
| MS_NOEXEC
| MS_NOSUID
, 0);
68 mount("cgroup", "/sys/fs/cgroup", "cgroup", MS_NODEV
| MS_NOEXEC
| MS_NOSUID
, 0);
69 mount("tmpfs", "/dev", "tmpfs", MS_NOATIME
| MS_NOSUID
, "mode=0755,size=512K");
70 ignore(symlink("/tmp/shm", "/dev/shm"));
71 mkdir("/dev/pts", 0755);
72 mount("devpts", "/dev/pts", "devpts", MS_NOATIME
| MS_NOEXEC
| MS_NOSUID
, "mode=600");
75 early_console("/dev/console");
76 if (mount_zram_on_tmp()) {
77 mount("tmpfs", "/tmp", "tmpfs", MS_NOSUID
| MS_NODEV
| MS_NOATIME
, 0);
78 mkdir("/tmp/shm", 01777);
80 mkdir("/tmp/shm", 01777);
81 mount("tmpfs", "/tmp/shm", "tmpfs", MS_NOSUID
| MS_NODEV
| MS_NOATIME
,
84 mkdir("/tmp/run", 0777);
85 mkdir("/tmp/lock", 0777);
86 mkdir("/tmp/state", 0777);
93 setenv("PATH", "/bin:/sbin:/usr/bin:/usr/sbin", 1);
105 LOG("Console is alive\n");