target/linux/brcm-2.4/base-files/default/etc/preinit.arch

   1 . /etc/functions.sh
   2
   3 failsafe_ip() {
   4         ifconfig $ifname 192.168.1.1 netmask 255.255.255.0 broadcast 192.168.1.255 up
   5 }
   6
   7 failsafe() {
   8         lock /tmp/.failsafe
   9         failsafe_ip
  10
  11         echo "0 1 2 3 4 5u*" > /proc/switch/eth0/vlan/0/ports
  12
  13         set_state failsafe
  14         [ -x "/usr/sbin/nvram" ] && {
  15                 [ "$(nvram get boot_wait)" != "on" ] && {
  16                         nvram set boot_wait=on
  17                         nvram commit
  18                 }
  19         }
  20
  21         netmsg 192.168.1.255 "Entering Failsafe!"
  22         telnetd -l /bin/login <> /dev/null 2>&1
  23
  24         ash --login
  25 }
  26
  27 mount none /proc -t proc
  28
  29 if grep devfs /proc/filesystems > /dev/null; then
  30         mount none /dev -t devfs
  31         M0=/dev/pty/m0
  32         M1=/dev/pty/m1
  33         HOTPLUG=/sbin/hotplug-call
  34 else
  35         mount -t sysfs none /sys
  36         mount -t tmpfs tmpfs /dev -o size=512K
  37         mknod /dev/console c 5 1
  38         mkdir /dev/shm
  39         /sbin/hotplug2 --no-persistent --coldplug --set-rules-file /etc/hotplug2-init.rules
  40         M0=/dev/ptmx
  41         M1=/dev/ptmx
  42         HOTPLUG=
  43 fi
  44 mkdir -p /dev/pts
  45 mount none /dev/pts -t devpts
  46
  47 # the shell really doesn't like having stdin/out closed
  48 # that's why we use /dev/pty/m0 and m1 as replacement
  49 # for /dev/console if there's no serial console available
  50 dd if=/dev/console of=/dev/null bs=1 count=0 >/dev/null 2>/dev/null || \
  51         exec <$M0 >$M1 2>&0
  52
  53 insmod diag
  54 set_state preinit
  55 trap 'FAILSAFE=true' USR1
  56 echo '/sbin/hotplug.failsafe' > /proc/sys/kernel/hotplug
  57
  58 ifname=eth0
  59
  60 # hardware specific overrides
  61 case "$(cat /proc/diag/model)" in
  62         "Linksys WAP54G V1") ifname=eth1;;
  63         "ASUS WL-HDD") ifname=eth1;;
  64         "ASUS WL-300g") ifname=eth1;;
  65         "ASUS (unknown, BCM4702)") ifname=eth1;;
  66 esac
  67
  68 failsafe_ip
  69
  70 insmod switch-core
  71 insmod switch-robo || insmod switch-adm || rmmod switch-core
  72
  73 [ -d /proc/switch/eth0 ] && {
  74         echo 1 > /proc/switch/eth0/reset
  75
  76         # this would be easier if we blasted the message across all ports
  77         # but we don't want packets leaking across interfaces
  78         for port in $(seq 0 4); do {
  79                 echo "$port 5u*" > /proc/switch/eth0/vlan/0/ports
  80                 netmsg 192.168.1.255 "Press reset now, to enter Failsafe!"
  81         }; done
  82 } || netmsg 192.168.1.255 "Press reset now, to enter Failsafe!"
  83
  84 sleep 2
  85 echo "$HOTPLUG" > /proc/sys/kernel/hotplug
  86
  87 ifconfig $ifname 0.0.0.0 down