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#!/bin/sh
# OpenWrt Networking script
# $Id$
# Copyright (c) 2004 Mike Baker <mbm at alt.org>
# to debug:
# export DEBUG=echo
export PATH=/usr/bin:/bin:/usr/sbin:/sbin
# lookup an interface by mac address
mac2if () {
if=$(ifconfig -a | grep -i "$1" | grep -e "^eth" | awk '{print $1}')
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
}
ifconfig "$1" >/dev/null 2>&1 || [ "${1%[0-9]}" = "br" ]
return $?
}
wifi_init () {
echo "# --- wifi init ---"
hwaddr=$(nvram_get il0macaddr)
[ -z "$hwaddr" ] && hwaddr=$(nvram_get wl0_hwaddr)
if=$(mac2if $hwaddr)
$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 $if || return
if [ "${if%[0-9]}" = "br" ]; then
stp=$(nvram get ${type}_stp)
$DEBUG ifconfig $if down
$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)
$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 ${if}_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
sleep 5
$DEBUG /sbin/route add default $if
;;
*)
echo "$if: $if_proto is not supported"
;;
esac
}
### START NETWORKING ###
wifi_init
$DEBUG vconfig set_name_type VLAN_PLUS_VID_NO_PAD
# hacks for 1.x hardware
[ -z "$(nvram_get vlan0hwname)" ] && {
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
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