#!/bin/sh # OpenWrt Networking script # $Id$ # Copyright (c) 2004 Mike Baker # to debug: # export DEBUG=echo export PATH=/usr/bin:/bin:/usr/sbin:/sbin # lookup an interface by mac address mac2if () { if=$(ifconfig -a | awk '{IGNORECASE=1} /^eth.*'$1'/ {print $1; exit}') echo $if } # allow env to override nvram nvram_get () { eval "echo \${$1:=\$(nvram get $1)}" } # valid interface? if_valid () { [ "${1%[0-9]}" = "vlan" ] && { i=${1##vlan} hwname=$(nvram_get vlan${i}hwname) hwaddr=$(nvram_get ${hwname}macaddr) [ -z "$hwaddr" ] && return 1 vif=$(mac2if $hwaddr) echo "# vlan${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_init () { echo "# --- wifi init ---" # assume wifi is eth2, fall back to eth1 if="eth2" if_valid $if || if="eth1" $DEBUG wlconf $if up } configure () { type=$1 echo "# --- $type ---" if=$(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 echo "# --- 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 udhcpc -i $if -b -p /tmp/dhcp-${type}.pid ;; 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 $if_idletime -k ;; *) echo "$if: $if_proto is not supported" ;; esac } ### START NETWORKING ### wifi_init $DEBUG vconfig set_name_type VLAN_PLUS_VID_NO_PAD # hacks for 1.x hardware [ "$(nvram get boardnum)" = "42" ] && \ [ "$(nvram get boardtype)" = "bcm94710dev" ] && { echo "# 1.x HACK" vlan1hwname="et0" vlan2hwname="et0" # we remap old device names to new # it's recommended that you continue to # use the old names to preserve backwards # compatibility remap () { eval $1=\"$(nvram_get $1 | awk '{ gsub(/eth0/,"vlan2") gsub(/eth1/,"vlan1") print $0 }')\" } remap lan_ifname remap lan_ifnames remap wifi_ifname remap wifi_ifnames remap wan_ifname remap wan_ifnames remap pppoe_ifname } # failsafe if reset is held [ "$FAILSAFE" = "true" ] && { lan_ifname="br0" lan_ifnames="vlan0 vlan2 eth1 eth2 eth3" lan_ipaddr="192.168.1.1" lan_netmask="255.255.255.0" lan_hwaddr="00:0B:AD:0A:DD:00" wan_ifname="none" wifi_ifname="none" } # linksys bug has lan doing dhcp; force static lan_proto="static" configure lan configure wifi configure wan for route in $(nvram_get static_route); do { ip=${route%%:*} route=${route#*:} netmask=${route%%:*} route=${route#*:} gateway=${route%%:*} route=${route#*:} metric=${route%%:*} route=${route#*:} if=${route%%:*} $DEBUG route add -net $ip netmask $netmask gw $gateway metric $metric dev $if } done