+#!/bin/ash
+. /etc/functions.sh
+ type=$1
+ debug "### ifup $type ###"
+
+ if=$(nvram get ${type}_ifname)
+ if [ "${if%%[0-9]}" = "ppp" ]; then
+ if=$(nvram get pppoe_ifname)
+ fi
+
+ if_valid $if || return
+
+ $DEBUG ifconfig $if down
+ if [ "${if%%[0-9]}" = "br" ]; then
+ stp=$(nvram get ${type}_stp)
+ $DEBUG brctl delbr $if
+ $DEBUG brctl addbr $if
+ $DEBUG brctl setfd $if 0
+ $DEBUG brctl stp $if ${stp:-0}
+ for sif in $(nvram get ${type}_ifnames); do {
+ if_valid $sif || continue
+ $DEBUG ifconfig $sif 0.0.0.0 up
+ $DEBUG brctl addif $if $sif
+ } done
+ fi
+
+ mac=$(nvram get ${type}_hwaddr)
+ ${mac:+$DEBUG ifconfig $if hw ether $mac}
+
+ if_proto=$(nvram get ${type}_proto)
+ case "$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 $dns" >> /etc/resolv.conf
+ } done
+ ;;
+ dhcp)
+ pidfile=/tmp/dhcp-${type}.pid
+ if [ -f $pidfile ]; then
+ $DEBUG kill $(cat $pidfile)
+ fi
+ ${DEBUG:-eval} "udhcpc -i $if -b -p $pidfile &"
+ ;;
+ pppoe)
+ username=$(nvram get ppp_username)
+ password=$(nvram get ppp_passwd)
+ redial=$(nvram get ppp_redialperiod)
+ idletime=$(nvram get ppp_idletime)
+ mtu=$(nvram get wan_mtu)
+
+ $DEBUG ifconfig $if 0.0.0.0 up
+
+ $DEBUG /sbin/pppoecd $if -u $username -p $password \
+ -i 0 -I $redial -T $idletime -t $mtu -k
+ ;;
+ none)
+ ;;
+ *)
+ echo "### WARNING $if: $if_proto is not supported"
+ ;;
+ esac