#!/bin/sh debug () { [ -z "$DEBUG" ] || echo $1 } # allow env to override nvram nvram_get () { eval "echo \${$1:-\$(nvram get $1)}" } . /etc/nvram.overrides # valid interface? if_valid () ( [ "${1%%[0-9]}" = "vlan" ] && { i=${1#vlan} hwname=$(nvram_get vlan${i}hwname) hwaddr=$(nvram_get ${hwname}macaddr) [ -z "$hwaddr" ] && return 1 vif=$(ifconfig -a | awk '{IGNORECASE=1} /^eth.*'$hwaddr'/ {print $1; exit}') debug "# vlan$i: $hwname $hwaddr => $vif" $DEBUG ifconfig $vif up $DEBUG vconfig add $vif $i 2>/dev/null } ifconfig "$1" >/dev/null 2>&1 || [ "${1%%[0-9]}" = "br" ] return $? ) wifi () ( debug "### wifi $1 ###" if=$(awk 'gsub(":","") {print $1}' /proc/net/wireless) $DEBUG wlconf $if $1 ) ifup () ( 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 $stp if_list=$(nvram_get ${type}_ifnames) for sif in $if_list; do { if_valid $sif || continue $DEBUG ifconfig $sif 0.0.0.0 up $DEBUG brctl addif $if $sif } done fi if_mac=$(nvram_get ${type}_hwaddr) [ -z "$if_mac" ] || $DEBUG ifconfig $if hw ether $if_mac if_proto=$(nvram_get ${type}_proto) case "$if_proto" in static) if_ip=$(nvram_get ${type}_ipaddr) if_netmask=$(nvram_get ${type}_netmask) if_gateway=$(nvram_get ${type}_gateway) ipcalc -s "$if_ip" || return ipcalc -s "$if_netmask" || return $DEBUG ifconfig $if $if_ip netmask $if_netmask up ipcalc -s "$if_gateway" || return $DEBUG route add default gw $if_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 cmd="udhcpc -i $if -b -p $pidfile &" ${DEBUG:-eval} $cmd ;; pppoe) if_username=$(nvram_get ppp_username) if_password=$(nvram_get ppp_passwd) if_redial=$(nvram_get ppp_redialperiod) if_idletime=$(nvram_get ppp_idletime) $DEBUG ifconfig $if 0.0.0.0 up $DEBUG /sbin/pppoecd $if -u $if_username -p $if_password -i 0 -I $if_redial -T $if_idletime -k ;; *) echo "### WARNING $if: $if_proto is not supported" ;; esac ) ifdown () ( type=$1 debug "### ifdown $type ###" if=$(nvram_get ${type}_ifname) if_valid $if || return $DEBUG ifdown $if )