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#!/bin/sh
find_name()
{
for ifname in lan wan wifi ${ifnames}; do
IFTYPE="${ifname}"
eval "IFPROTO=\"\${${IFTYPE}_proto}\""
eval "IFACE=\"\${${IFTYPE}_ifname}\""
case "$IFPROTO" in
""|none);;
static|dhcp)
[ "${IFACE}" = "$INTERFACE" ] && return 0
[ "${IFACE%%[0-9]*}" = "br" ] && {
eval "ifs=\"\${${IFTYPE}_ifnames}\""
for part in $ifs; do
[ "$part" = "$INTERFACE" ] && return 0
done
}
;;
pppoa)
[ "$INTERFACE" = "atm0" \
-a -x /sbin/ifup.${IFPROTO} ] && return 0
;;
*)
eval "device=\"\${${IFTYPE}_device}\""
[ "$device" = "$INTERFACE" \
-a -x /sbin/ifup.${IFPROTO} ] && return 0
;;
esac
done
IFACE=""
IFTYPE=""
IFPROTO=""
return 255
}
do_ifup() {
if="$3"
eval "if_proto=\"\${${2}_proto}\""
pidfile=/var/run/${if}.pid
[ -f $pidfile ] && $DEBUG kill $(cat $pidfile)
case "$1" in
static)
eval "ip=\"\${${2}_ipaddr}\""
eval "ip6=\"\${${2}_ip6addr}\""
eval "netmask=\"\${${2}_netmask}\""
eval "gateway=\"\${${2}_gateway}\""
eval "dns=\"\${${2}_dns}\""
eval "static_route=\"\${${2}_static_route}\""
$DEBUG ifconfig $if $ip ${netmask:+netmask $netmask} broadcast + up
[ -n "$ip6" ] && $DEBUG ifconfig $if add $ip6
[ -n "$static_route" ] && {
for route in $static_route; do
if [ "$(echo $route | cut -d \/ -f2)" != "32" ];
then
route add -net $(echo $route | cut -d \/ -f1) netmask $(echo $route | cut -d \/ -f1) dev $if
else
route add -host $(echo $route | cut -d \/ -f1) dev $if
fi
done
}
${gateway:+$DEBUG route add default gw $gateway}
[ -f /tmp/resolv.conf ] || {
debug "# --- creating /tmp/resolv.conf ---"
for ns in $dns; do
echo "nameserver $ns" >> /tmp/resolv.conf
done
}
env -i ACTION="ifup" INTERFACE="${2}" PROTO=static /sbin/hotplug "iface" &
;;
dhcp)
eval "ip=\"\${${2}_ipaddr}\""
eval "netmask=\"\${${2}_netmask}\""
eval "hostname=\"\${${2}_hostname}\""
$DEBUG ifconfig $if $ip ${netmask:+netmask $netmask} broadcast + up
args="-i $if ${ip:+-r $ip} -b -p $pidfile"
hostname="${hostname%%.*}"
args="$args${hostname:+ -H $hostname}"
[ "$if_proto" = "pptp" ] && args="$args -n -q" || args="$args -R &"
${DEBUG:-eval} "udhcpc $args"
# hotplug events are handled by /usr/share/udhcpc/default.script
;;
*)
if [ -x "/sbin/ifup.$1" ]; then
( $DEBUG . /sbin/ifup.$1 ${2} $3 )
fi
;;
esac
}
do_register()
{
[ -z "$IFTYPE" -o -z "$IFPROTO" ] && {
find_name || {
case "${INTERFACE%%[0-9]*}" in
wds)
for ifname in lan wifi; do
eval "if=\"\${${ifname}_ifname}\""
[ -z "$IFPROTO" ] && [ "$if" = "br0" ] && {
eval "IFPROTO=\"\${${2}_proto}\""
IFTYPE="${tmp}"
}
done
[ -z "$IFPROTO" ] && return 0
;;
atm)
for tmp in lan wan wifi ${ifnames}; do
eval "if_proto=\"\${${2}_proto}\""
[ "$if_proto" = "pppoa" ] && {
do_ifup "pppoa" "$tmp" "$INTERFACE"
return 0
}
done
;;
*)
return 0
;;
esac
}
}
case "${INTERFACE%%[0-9]*}" in
ppp|atm);;
*)
eval "mac=\"\${${IFTYPE}_hwaddr}\""
${mac:+$DEBUG ifconfig $INTERFACE down hw ether $mac}
;;
esac
eval "if=\"\${${IFTYPE}_ifname}\""
if [ "${if%%[0-9]}" = "br" ]; then
if_valid "$INTERFACE" && {
ifconfig "$if" 2>&- >&- || {
eval "stp=\"\${${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
$DEBUG brctl addif "$if" "$INTERFACE"
$DEBUG ifconfig "$INTERFACE" allmulti
else
do_ifup "$IFPROTO" "$IFTYPE" "$if"
fi
}
else
[ "${INTERFACE%%[0-9]*}" = "ppp" ] || do_ifup "$IFPROTO" "$IFTYPE" "$if"
fi
}
do_unregister() {
[ -z "$IFTYPE" -o -z "$IFPROTO" ] && {
find_name || return 0
}
[ "${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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