work around a busybox bug

[openwrt.git] / package / base-files / default / sbin / ifup

diff --git a/package/base-files/default/sbin/ifup b/package/base-files/default/sbin/ifup
index 1f78061..a86a767 100755 (executable)
--- a/package/base-files/default/sbin/ifup
+++ b/package/base-files/default/sbin/ifup
@@ -1,66 +1,36 @@
-#!/bin/ash
+#!/bin/sh
 [ $# = 0 ] && { echo "  $0 <group>"; exit; }
 . /etc/functions.sh
-. /etc/network.overrides
-[ "$FAILSAFE" != "true" -a -e /etc/config/network ] && . /etc/config/network
+. /etc/config/network
 
-type=$1
-debug "### ifup $type ###"
-
-if_proto=$(nvram get ${type}_proto)
-[ "${if_proto}" = "pppoa" ] || {
-       if=$(nvram get ${type}_ifname)
-       [ "${if%%[0-9]}" = "ppp" ] && if=$(nvram get ${if_proto}_ifname)
-
-       if_valid $if || exit 
-       mac=$(nvram get ${type}_hwaddr)
-       $DEBUG ifconfig $if down 2>&-
+ifdown $1
 
-       pidfile=/var/run/${if}.pid
-       [ -f $pidfile ] && $DEBUG kill $(cat $pidfile)
-
-       if [ "${if%%[0-9]}" = "br" ]; then
-               stp=$(nvram get ${type}_stp)
-               $DEBUG brctl delbr $if 2>&-
-               $DEBUG brctl addbr $if
-               $DEBUG brctl setfd $if 0
-               $DEBUG brctl stp $if ${stp:-0}
+debug "### ifup $type ###"
+type=$1
 
-               for sif in $(nvram get ${type}_ifnames); do
-                       if_valid $sif || continue
-                       ${mac:+$DEBUG ifconfig $sif down hw ether $mac}
-                       $DEBUG ifconfig $sif 0.0.0.0 up
-                       $DEBUG brctl addif $if $sif
-               done
-       else
-               ${mac:+$DEBUG ifconfig $if down hw ether $mac}
-       fi
-}
+eval "if_proto=\"\${${type}_proto}\""
+eval "if=\"\${${type}_ifname}\""
+[ "${if%%[0-9]}" = "ppp" ] && eval "if=\"\${${type}_device}\""
 
 case "$if_proto" in
-       static)
-               ip=$(nvram get ${type}_ipaddr)
-               netmask=$(nvram get ${type}_netmask)
-               gateway=$(nvram get ${type}_gateway)
-
-               $DEBUG ifconfig $if $ip ${netmask:+netmask $netmask} broadcast + up
-               ${gateway:+$DEBUG route add default gw $gateway}
-
-               [ -f /etc/resolv.conf ] && return
-
-               debug "# --- creating /etc/resolv.conf ---"
-               for dns in $(nvram get ${type}_dns); do
-                       echo "nameserver $dns" >> /etc/resolv.conf
-               done
-       ;;
-       dhcp)
-               ip=$(nvram get ${type}_ipaddr)
-               ${DEBUG:-eval} "udhcpc -R -i $if ${ip:+-r $ip} -b -p $pidfile &" 
-       ;;
-       none|"")
-       ;;
-       *)
-               [ -x "/sbin/ifup.${if_proto}" ] && { $DEBUG /sbin/ifup.${if_proto} $*; exit; }
-               echo "### ifup $type: ignored ${type}_proto=\"$if_proto\" (not supported)"
+       pppoa) hotplug_dev register atm0; exit 0 ;;
+       pppoe)
+               # PPPoE over ATM
+               [ "$if" = "nas0" ] && {
+                       ifconfig nas0 2>&- >&- || {
+                               hotplug_dev register atm0
+                               exit 0
+                       }
+               }
        ;;
+       none|"") exit 0;;
 esac
+
+if [ "${if%%[0-9]}" = "br" ]; then
+       eval "ifnames=\"\${${type}_ifnames}\""
+       for sif in $ifnames; do
+               hotplug_dev register "$sif"
+       done
+else
+       hotplug_dev register "$if"
+fi