X-Git-Url: https://git.rohieb.name/openwrt.git/blobdiff_plain/4d3589325b1a1e142af7318e43a54f90ad5a9837..a4bdef9ca9051d829ee12f9f8ae36016f0c2136e:/package/base-files/files/etc/preinit?ds=sidebyside diff --git a/package/base-files/files/etc/preinit b/package/base-files/files/etc/preinit index c60a0f850..76443836e 100755 --- a/package/base-files/files/etc/preinit +++ b/package/base-files/files/etc/preinit @@ -1,6 +1,89 @@ #!/bin/sh # Copyright (C) 2006 OpenWrt.org export PATH=/bin:/sbin:/usr/bin:/usr/sbin +. /etc/diag.sh + +failsafe_ip() { + ifconfig $ifname 192.168.1.1 netmask 255.255.255.0 broadcast 192.168.1.255 up +} + +failsafe() { + [ -n "$ifname" ] && grep "$ifname" /proc/net/dev >/dev/null && { + failsafe_ip + netmsg 192.168.1.255 "Entering Failsafe!" + telnetd -l /bin/login.sh <> /dev/null 2>&1 + } + lock /tmp/.failsafe + ash --login +} + +mount proc /proc -t proc +mount sysfs /sys -t sysfs + +size=$(awk '/MemTotal:/ {l=5242880;mt=($2*1024);print((s=mt/2)l)?mt-l:s}' /proc/meminfo) +mount tmpfs /tmp -t tmpfs -o size=$size,nosuid,nodev,mode=1777 + +if grep devfs /proc/filesystems > /dev/null; then + mount devfs /dev -t devfs + M0=/dev/pty/m0 + M1=/dev/pty/m1 + HOTPLUG=/sbin/hotplug-call + +elif [ -x /sbin/hotplug2 ]; then + mount -t tmpfs tmpfs /dev -o size=512K + mknod /dev/console c 5 1 + /sbin/hotplug2 --coldplug --set-rules-file /etc/hotplug2-init.rules + /sbin/hotplug2 --no-coldplug --persistent --set-rules-file /etc/hotplug2-init.rules & + M0=/dev/ptmx + M1=/dev/ptmx + HOTPLUG= + +elif [ -x /sbin/udevd ]; then + mount -n -t tmpfs -o mode=0755 udev /dev + /sbin/udevd --daemon + /sbin/udevtrigger + /sbin/udevsettle + M0=/dev/pty/ptmx + M1=/dev/pty/ptmx + HOTPLUG= +fi + +mkdir -p /dev/pts /dev/shm +mount devpts /dev/pts -t devpts + +# the shell really doesn't like having stdin/out closed +# that's why we use /dev/pty/m0 and m1 as replacement +# for /dev/console if there's no serial console available +dd if=/dev/console of=/dev/null bs=1 count=0 >/dev/null 2>/dev/null && { + M0=/dev/console + M1=/dev/console +} + +exec <$M0 >$M1 2>&0 + +echo "- preinit -" +echo "Press CTRL-C for failsafe" +trap 'FAILSAFE=true' INT +trap 'FAILSAFE=true' USR1 [ -e /etc/preinit.arch ] && . /etc/preinit.arch -mount_root ${FAILSAFE:+failsafe} -exec /sbin/init +set_state preinit +echo "$HOTPLUG" > /proc/sys/kernel/hotplug +export FAILSAFE +eval ${FAILSAFE:+failsafe} +lock -w /tmp/.failsafe + +if [ -z "$INITRAMFS" ]; then + mount_root + [ -f /sysupgrade.tgz ] && { + echo "- config restore -" + cd / + mv sysupgrade.tgz /tmp + tar xzf /tmp/sysupgrade.tgz + rm -f /tmp/sysupgrade.tgz + sync + } + + echo "- init -" + + exec /sbin/init +fi