96 lines
2.3 KiB
Bash
Executable file
96 lines
2.3 KiB
Bash
Executable file
#!/bin/sh
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# Copyright (C) 2006 OpenWrt.org
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. /etc/functions.sh
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. /etc/diag.sh
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failsafe() {
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lock /tmp/.failsafe
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echo "0 1 2 3 4 5u*" > /proc/switch/eth0/vlan/0/ports
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set_state failsafe
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[ -x "/usr/sbin/nvram" ] && {
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[ "$(nvram get boot_wait)" != "on" ] && {
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nvram set boot_wait=on
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nvram commit
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}
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}
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netmsg 192.168.1.255 "Entering Failsafe!"
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telnetd -l /bin/login <> /dev/null 2>&1
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ash --login
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}
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export PATH=/bin:/sbin:/usr/bin:/usr/sbin
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mount none /proc -t proc
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size=$(awk '/Mem:/ {l=5242880;print((s=$2/2)<l)?$2-l:s}' /proc/meminfo)
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mount none /tmp -t tmpfs -o size=$size
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if grep devfs /proc/filesystems > /dev/null; then
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mount none /dev -t devfs
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M0=/dev/pty/m0
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M1=/dev/pty/m1
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HOTPLUG=/sbin/hotplug-call
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else
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mount -t sysfs none /sys
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mount -t tmpfs tmpfs /dev -o size=512K
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mknod /dev/console c 5 1
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mkdir /dev/shm
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/sbin/hotplug2 --no-persistent --coldplug --set-rules-file /etc/hotplug2-init.rules
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M0=/dev/ptmx
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M1=/dev/ptmx
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HOTPLUG=
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fi
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mkdir -p /dev/pts
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mount none /dev/pts -t devpts
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# the shell really doesn't like having stdin/out closed
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# that's why we use /dev/pty/m0 and m1 as replacement
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# for /dev/console if there's no serial console available
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dd if=/dev/console of=/dev/null bs=1 count=0 >/dev/null 2>/dev/null || \
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exec <$M0 >$M1 2>&0
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insmod diag
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set_state preinit
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trap 'FAILSAFE=true' USR1
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echo '/sbin/hotplug.failsafe' > /proc/sys/kernel/hotplug
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ifname=eth0
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# hardware specific overrides
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case "$(cat /proc/diag/model)" in
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"Linksys WAP54G V1") ifname=eth1;;
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"ASUS WL-HDD") ifname=eth1;;
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"ASUS WL-300g") ifname=eth1;;
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"ASUS (unknown, BCM4702)") ifname=eth1;;
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esac
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insmod switch-core
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insmod switch-robo || insmod switch-adm || rmmod switch-core
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ifconfig $ifname 192.168.1.1 netmask 255.255.255.0 broadcast 192.168.1.255 up
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[ -d /proc/switch/eth0 ] && {
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echo 1 > /proc/switch/eth0/reset
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# this would be easier if we blasted the message across all ports
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# but we don't want packets leaking across interfaces
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for port in $(seq 0 4); do {
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echo "$port 5u*" > /proc/switch/eth0/vlan/0/ports
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netmsg 192.168.1.255 "Press reset now, to enter Failsafe!"
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}; done
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} || netmsg 192.168.1.255 "Press reset now, to enter Failsafe!"
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sleep 2
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eval ${FAILSAFE:+failsafe}
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lock -w /tmp/.failsafe
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set_state preinit
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echo "$HOTPLUG" > /proc/sys/kernel/hotplug
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ifconfig $ifname 0.0.0.0 down
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mount_root
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exec /sbin/init
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