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|
#!/bin/sh
setup_eth()
{
for part in $(nvram get unused_ifnames); do
[ "$part" = "$INTERFACE" ] && exit 0
done
ifconfig "$INTERFACE" up 2>&- >&-
}
find_name()
{
pppoa_ifname="atm0" # hack for ppp over atm, which has no ${proto}_ifname
interfaces="lan wan wifi $(nvram get ifnames)"
for ifname in $interfaces; do
IFTYPE="${ifname}"
IFPROTO="$(nvram get ${IFTYPE}_proto)"
IFACE="$(nvram get ${IFTYPE}_ifname)"
case "$IFPROTO" in
""|none);;
static|dhcp)
[ "${IFACE}" = "$INTERFACE" ] && return 0
[ "${IFACE%%[0-9]*}" = "br" ] && {
for part in $(nvram get ${IFTYPE}_ifnames); do
[ "$part" = "$INTERFACE" ] && return 0
done
}
;;
*)
[ "$(nvram get ${IFTYPE}_device)" = "$INTERFACE" \
-a -x /sbin/ifup.${IFPROTO} ] && return 0
;;
esac
done
IFACE=""
IFTYPE=""
IFPROTO=""
return 255
}
do_ifup() {
if="$3"
if_proto="$(nvram get ${2}_proto)"
pidfile=/var/run/${if}.pid
[ -f $pidfile ] && $DEBUG kill $(cat $pidfile)
case "$1" in
static)
ip=$(nvram get ${2}_ipaddr)
ip6=$(nvram get ${2}_ip6addr)
netmask=$(nvram get ${2}_netmask)
gateway=$(nvram get ${2}_gateway)
$DEBUG ifconfig $if $ip ${netmask:+netmask $netmask} broadcast + up
[ -n "$ip6" ] && $DEBUG ifconfig $if add $ip6
${gateway:+$DEBUG route add default gw $gateway}
[ -f /tmp/resolv.conf ] || {
debug "# --- creating /tmp/resolv.conf ---"
for dns in $(nvram get ${2}_dns); do
echo "nameserver $dns" >> /tmp/resolv.conf
done
}
env -i ACTION="ifup" INTERFACE="${2}" PROTO=static /sbin/hotplug "iface" &
;;
dhcp)
DHCP_IP=$(nvram get ${2}_ipaddr)
DHCP_NETMASK=$(nvram get ${2}_netmask)
$DEBUG ifconfig $if $ip ${netmask:+netmask $netmask} broadcast + up
DHCP_ARGS="-i $if ${DHCP_IP:+-r $DHCP_IP} -b -p $pidfile"
DHCP_HOSTNAME=$(nvram get ${2}_hostname)
DHCP_HOSTNAME=${DHCP_HOSTNAME%%.*}
[ -z $DHCP_HOSTNAME ] || DHCP_ARGS="$DHCP_ARGS -H $DHCP_HOSTNAME"
[ "$if_proto" = "pptp" ] && DHCP_ARGS="$DHCP_ARGS -n -q" || DHCP_ARGS="$DHCP_ARGS -R &"
oldpid=$(cat $pidfile)
${DEBUG:-eval} "udhcpc $DHCP_ARGS"
pidof udhcpc | grep "$oldpid" >&- 2>&- && {
sleep 1
kill -9 $oldpid
}
# hotplug events are handled by /usr/share/udhcpc/default.script
;;
*)
if [ -x "/sbin/ifup.$1" ]; then
( $DEBUG . /sbin/ifup.$1 ${2} $3 )
fi
;;
esac
}
do_register()
{
case "${INTERFACE%%[0-9]*}" in
eth) setup_eth;;
esac
[ -z "$IFTYPE" -o -z "$IFPROTO" ] && {
find_name || {
case "${INTERFACE%%[0-9]*}" in
wds)
for tmp in lan wifi; do
[ -z "$IFPROTO" ] && [ "$(nvram get ${tmp}_ifname)" = "br0" ] && {
IFPROTO="$(nvram get ${tmp}_proto)"
IFTYPE="${tmp}"
}
done
[ -z "$IFPROTO" ] && return 0
;;
atm)
for tmp in lan wan wifi $(nvram get ifnames); do
[ "$(nvram get ${tmp}_proto)" = "pppoa" ] && {
do_ifup "pppoa" "$tmp" "$INTERFACE"
return 0
}
done
;;
*)
return 0
;;
esac
}
}
case "${INTERFACE%%[0-9]*}" in
ppp|atm);;
*)
mac=$(nvram get ${IFTYPE}_hwaddr)
${mac:+$DEBUG ifconfig $INTERFACE down hw ether $mac}
;;
esac
if="$(nvram get ${IFTYPE}_ifname)"
if [ "${if%%[0-9]}" = "br" ]; then
if_valid "$INTERFACE" && {
ifconfig "$if" 2>&- >&- || {
stp=$(nvram get ${IFTYPE}_stp)
$DEBUG brctl addbr "$if"
$DEBUG brctl setfd "$if" 0
$DEBUG brctl stp "$if" "${stp:-0}"
}
if [ "$INTERFACE" != "$if" ]; then
$DEBUG ifconfig "$INTERFACE" 0.0.0.0 up
brctl addif "$if" "$INTERFACE"
else
do_ifup "$IFPROTO" "$IFTYPE" "$if"
fi
}
else
[ "${INTERFACE%%[0-9]*}" = "ppp" ] || do_ifup "$IFPROTO" "$IFTYPE" "$if"
fi
}
do_unregister() {
[ -z "$IFTYPE" -o -z "$IFPROTO" ] && find_name
[ -z "$IFTYPE" -o -z "$IFPROTO" ] && return 0
[ "${IFACE%%[0-9]*}" = "br" ] && {
if [ "$INTERFACE" != "$IFACE" ]; then
brctl delif "$IFACE" "$INTERFACE" 2>&- >&-
else
brctl delbr "$IFACE" 2>&- >&-
fi
}
case "$IFPROTO" in
pppoe|pppoa|pptp)
killall pppd 2>&- >&-
;;
dhcp)
[ -f /var/run/${INTERFACE}.pid ] && kill "$(cat /var/run/${INTERFACE}.pid)" 2>&- >&-
;;
esac
[ "${INTERFACE%%[0-9]*}" = "atm" ] || ifconfig "$INTERFACE" 0.0.0.0 down 2>&-
}
case "$ACTION" in
add|register) do_register;;
remove|unregister) do_unregister;;
esac
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