178 lines
4.1 KiB
Bash
Executable File
178 lines
4.1 KiB
Bash
Executable File
#!/bin/sh
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# OpenWrt Networking script
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# $Id$
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# Copyright (c) 2004 Mike Baker <mbm at alt.org>
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# to debug:
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# export DEBUG=echo
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export PATH=/usr/bin:/bin:/usr/sbin:/sbin
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# lookup an interface by mac address
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mac2if () {
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if=$(ifconfig -a | awk '{IGNORECASE=1} /^eth.*'$1'/ {print $1; exit}')
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echo $if
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}
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# allow env to override nvram
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nvram_get () {
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eval "echo \${$1:=\$(nvram get $1)}"
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}
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# valid interface?
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if_valid () {
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[ "${1%[0-9]}" = "vlan" ] && {
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i=${1##vlan}
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hwname=$(nvram_get vlan${i}hwname)
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hwaddr=$(nvram_get ${hwname}macaddr)
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[ -z "$hwaddr" ] && return 1
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vif=$(mac2if $hwaddr)
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echo "# vlan${i}: $hwname $hwaddr => $vif"
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$DEBUG ifconfig $vif up
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$DEBUG vconfig add $vif $i 2>/dev/null
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}
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ifconfig "$1" >/dev/null 2>&1 || [ "${1%[0-9]}" = "br" ]
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return $?
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}
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wifi_init () {
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echo "# --- wifi init ---"
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hwaddr=$(nvram_get il0macaddr)
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[ -z "$hwaddr" ] && hwaddr=$(nvram_get wl0_hwaddr)
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if=$(mac2if $hwaddr)
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$DEBUG wlconf $if up
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}
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configure () {
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type=$1
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echo "# --- $type ---"
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if=$(nvram_get ${type}_ifname)
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if [ "${if%[0-9]}" = "ppp" ]; then
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if=$(nvram_get pppoe_ifname)
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fi
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if_valid $if || return
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$DEBUG ifconfig $if down
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if [ "${if%[0-9]}" = "br" ]; then
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stp=$(nvram_get ${type}_stp)
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$DEBUG brctl delbr $if
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$DEBUG brctl addbr $if
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$DEBUG brctl setfd $if 0
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$DEBUG brctl stp $if $stp
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if_list=$(nvram_get ${type}_ifnames)
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for sif in $if_list; do {
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if_valid $sif || continue
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$DEBUG ifconfig $sif 0.0.0.0 up
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$DEBUG brctl addif $if $sif
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}; done
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fi
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if_mac=$(nvram_get ${type}_hwaddr)
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[ -z "$if_mac" ] || $DEBUG ifconfig $if hw ether $if_mac
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if_proto=$(nvram_get ${type}_proto)
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case "$if_proto" in
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static)
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if_ip=$(nvram_get ${type}_ipaddr)
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if_netmask=$(nvram_get ${type}_netmask)
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if_gateway=$(nvram_get ${type}_gateway)
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ipcalc -s "$if_ip" || return
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ipcalc -s "$if_netmask" || return
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$DEBUG ifconfig $if $if_ip netmask $if_netmask up
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ipcalc -s "$if_gateway" || return
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$DEBUG route add default gw $if_gateway
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[ -f /etc/resolv.conf ] && return
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echo "# --- creating /etc/resolv.conf ---"
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for dns in $(nvram_get ${type}_dns); do {
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echo "nameserver $dns" >> /etc/resolv.conf
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}; done
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;;
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dhcp)
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pidfile=/tmp/dhcp-${type}.pid
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if [ -f $pidfile ]; then
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$DEBUG kill $(cat $pidfile)
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fi
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$DEBUG udhcpc -i $if -b -p /tmp/dhcp-${type}.pid
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;;
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pppoe)
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if_username=$(nvram_get ppp_username)
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if_password=$(nvram_get ppp_passwd)
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if_redial=$(nvram_get ppp_redialperiod)
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if_idletime=$(nvram_get ppp_idletime)
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$DEBUG ifconfig $if 0.0.0.0 up
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$DEBUG /sbin/pppoecd $if -u $if_username -p $if_password -i 0 -I $if_redial -T $if_idletime -k
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;;
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*)
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echo "$if: $if_proto is not supported"
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;;
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esac
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}
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### START NETWORKING ###
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wifi_init
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$DEBUG vconfig set_name_type VLAN_PLUS_VID_NO_PAD
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# hacks for 1.x hardware
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[ -z "$(nvram_get vlan0hwname)" ] && {
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echo "# 1.x HACK"
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vlan1hwname="et0"
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vlan2hwname="et0"
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# we remap old device names to new
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# it's recommended that you continue to
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# use the old names to preserve backwards
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# compatibility
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remap () {
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eval $1=\"$(nvram_get $1 | awk '{
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gsub(/eth0/,"vlan2")
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gsub(/eth1/,"vlan1")
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print $0
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}')\"
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}
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remap lan_ifname
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remap lan_ifnames
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remap wifi_ifname
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remap wifi_ifnames
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remap wan_ifname
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remap wan_ifnames
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remap pppoe_ifname
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}
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# failsafe if reset is held
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[ "$FAILSAFE" = "true" ] && {
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lan_ifname="br0"
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lan_ifnames="vlan0 vlan2 eth1 eth2 eth3"
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lan_ipaddr="192.168.1.1"
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lan_netmask="255.255.255.0"
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lan_hwaddr="00:0B:AD:0A:DD:00"
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wan_ifname="none"
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wifi_ifname="none"
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}
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# linksys bug has lan doing dhcp; force static
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lan_proto="static"
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configure lan
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configure wifi
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configure wan
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for route in $(nvram_get static_route); do {
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ip=${route%%:*} route=${route#*:}
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netmask=${route%%:*} route=${route#*:}
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gateway=${route%%:*} route=${route#*:}
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metric=${route%%:*} route=${route#*:}
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if=${route%%:*}
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$DEBUG route add -net $ip netmask $netmask gw $gateway metric $metric dev $if
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} done
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