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|
#!/bin/sh
#
# $OpenBSD: dhclient-script,v 1.8 2000/09/05 07:21:34 peter Exp $
#
if [ "x$new_network_number" != "x" ]; then
echo "New Network Number: $new_network_number"
fi
if [ "x$new_broadcast_address" != "x" ]; then
echo "New Broadcast Address: $new_broadcast_address"
new_broadcast_arg="broadcast $new_broadcast_address"
fi
if [ "x$old_broadcast_address" != "x" ]; then
old_broadcast_arg="broadcast $old_broadcast_address"
fi
if [ "x$new_subnet_mask" != "x" ]; then
new_netmask_arg="netmask $new_subnet_mask"
fi
if [ "x$old_subnet_mask" != "x" ]; then
old_netmask_arg="netmask $old_subnet_mask"
fi
if [ "x$alias_subnet_mask" != "x" ]; then
alias_subnet_arg="netmask $alias_subnet_mask"
fi
if [ "x$reason" = "xMEDIUM" ]; then
ifconfig "$interface" "$medium"
ifconfig "$interface" inet -alias 0.0.0.0 "$medium" >/dev/null 2>&1
sleep 1
exit 0
fi
if [ "x$reason" = "xPREINIT" ]; then
if [ "x$alias_ip_address" != "x" ]; then
ifconfig "$interface" inet -alias "$alias_ip_address" > /dev/null 2>&1
route delete "$alias_ip_address" 127.0.0.1 > /dev/null 2>&1
fi
ifconfig "$interface" inet 0.0.0.0 netmask 0.0.0.0 \
broadcast 255.255.255.255 up
exit 0
fi
if [ "x$reason" = "xARPCHECK" ] || [ "x$reason" = "xARPSEND" ]; then
exit 0;
fi
if [ "x$reason" = "xBOUND" ] || [ "x$reason" = "xRENEW" ] || \
[ "x$reason" = "xREBIND" ] || [ "x$reason" = "xREBOOT" ]; then
if [ "x$old_ip_address" != "x" ] && [ "x$alias_ip_address" != "x" ] && \
[ "x$alias_ip_address" != "x$old_ip_address" ]; then
ifconfig "$interface" inet -alias "$alias_ip_address" > /dev/null 2>&1
route delete "$alias_ip_address" 127.0.0.1 > /dev/null 2>&1
fi
if [ "x$old_ip_address" != "x" ] && [ "x$old_ip_address" != "x$new_ip_address" ]; then
if [ "x$medium" != "x" ]; then
ifconfig "$interface" inet -alias "$old_ip_address" "$medium"
else
ifconfig "$interface" inet -alias "$old_ip_address"
fi
route delete "$old_ip_address" 127.1 >/dev/null 2>&1
for router in $old_routers; do
route delete default "$router" >/dev/null 2>&1
done
if [ "$old_static_routes" != "" ]; then
set $old_static_routes
while [ $# -gt 1 ]; do
route delete "$1" "$2"
shift; shift
done
fi
arp -n -a | sed -n -e 's/^.*(\(.*\)) at .*$/arp -d \1/p' |sh
fi
if [ "x$old_ip_address" = "x" ] || [ "x$old_ip_address" != "x$new_ip_address" ] || \
[ "x$reason" = "xBOUND" ] || [ "x$reason" = "xREBOOT" ]; then
if [ "x$medium" != "x" ]; then
ifconfig "$interface" inet "$new_ip_address" $new_netmask_arg \
$new_broadcast_arg "$medium"
else
ifconfig "$interface" inet "$new_ip_address" $new_netmask_arg \
$new_broadcast_arg
fi
route add "$new_ip_address" 127.1 >/dev/null 2>&1
for router in $new_routers; do
route add default "$router" >/dev/null 2>&1
done
if [ "$new_static_routes" != "" ]; then
set "$new_static_routes"
while [ $# -gt 1 ]; do
route add "$1" "$2"
shift; shift
done
fi
fi
if [ "x$new_ip_address" != "x$alias_ip_address" ] && [ "x$alias_ip_address" != "x" ];
then
ifconfig "$interface" inet alias "$alias_ip_address" $alias_subnet_arg
route add "$alias_ip_address" 127.0.0.1
fi
if [ "x$new_domain_name" != "x" ];
then
if [ -n "$new_domain_name_servers" ];
then
echo "search $new_domain_name" >/etc/resolv.conf
for nameserver in $new_domain_name_servers; do
echo "nameserver $nameserver" >>/etc/resolv.conf
done
if [ -f /etc/resolv.conf.tail ]; then
cat /etc/resolv.conf.tail >>/etc/resolv.conf
fi
exit 0
fi
fi
fi
if [ "x$reason" = "xEXPIRE" ] || [ "x$reason" = "xFAIL" ]; then
if [ "x$alias_ip_address" != "x" ]; then
ifconfig "$interface" inet -alias "$alias_ip_address" > /dev/null 2>&1
route delete "$alias_ip_address" 127.0.0.1 > /dev/null 2>&1
fi
if [ "x$old_ip_address" != "x" ]; then
if [ "x$medium" != "x" ]; then
ifconfig "$interface" inet -alias "$old_ip_address" "$medium"
else
ifconfig "$interface" inet -alias "$old_ip_address"
fi
route delete "$old_ip_address" 127.1 >/dev/null 2>&1
for router in $old_routers; do
route delete default "$router" >/dev/null 2>&1
done
if [ "$old_static_routes" != "" ]; then
set "$old_static_routes"
while [ $# -gt 1 ]; do
route delete "$1" "$2"
shift; shift
done
fi
arp -n -a | sed -n -e 's/^.*(\(.*\)) at .*$/arp -d \1/p' \
|sh >/dev/null 2>&1
fi
if [ "x$alias_ip_address" != "x" ]; then
ifconfig "$interface" inet alias "$alias_ip_address" $alias_subnet_arg
route add "$alias_ip_address" 127.0.0.1
fi
exit 0
fi
if [ "x$reason" = "xTIMEOUT" ]; then
if [ "x$alias_ip_address" != "x" ]; then
ifconfig "$interface" inet -alias "$alias_ip_address" > /dev/null 2>&1
route delete "$alias_ip_address" 127.0.0.1 > /dev/null 2>&1
fi
if [ "x$medium" != "x" ]; then
ifconfig "$interface" inet "$new_ip_address" $new_netmask_arg \
$new_broadcast_arg "$medium"
else
ifconfig "$interface" inet "$new_ip_address" $new_netmask_arg \
$new_broadcast_arg
fi
sleep 1
if [ "$new_routers" != "" ]; then
set "$new_routers"
if ping -q -c 1 -w 1 "$1"; then
if [ "x$new_ip_address" != "x$alias_ip_address" ] && \
[ "x$alias_ip_address" != "x" ]; then
ifconfig "$interface" inet alias "$alias_ip_address" $alias_subnet_arg
route add "$alias_ip_address" 127.0.0.1
fi
route add "$new_ip_address" 127.1 >/dev/null 2>&1
for router in $new_routers; do
route add default "$router" >/dev/null 2>&1
done
if [ "$new_static_routes" != "" ]; then
set "$new_static_routes"
while [ $# -gt 1 ]; do
route add "$1" "$2"
shift; shift
done
fi
if [ "$new_domain_name" != "" ]; then
if [ -n "$new_domain_name_servers" ]; then
echo "search $new_domain_name" >/etc/resolv.conf.std
for nameserver in $new_domain_name_servers; do
echo "nameserver $nameserver" >>/etc/resolv.conf.std
done
if [ -f /etc/resolv.conf.tail ]; then
cat /etc/resolv.conf.tail >>/etc/resolv.conf.std
fi
if [ -f /etc/resolv.conf ]; then
rm -f /etc/resolv.conf
fi
mv /etc/resolv.conf.std /etc/resolv.conf
exit 0
fi
fi
fi
fi
if [ "x$medium" != "x" ]; then
ifconfig "$interface" inet -alias "$new_ip_address" "$medium"
else
ifconfig "$interface" inet -alias "$new_ip_address"
fi
for router in $old_routers; do
route delete default "$router" >/dev/null 2>&1
done
if [ "$old_static_routes" != "" ]; then
set "$old_static_routes"
while [ $# -gt 1 ]; do
route delete "$1" "$2"
shift; shift
done
fi
arp -n -a | sed -n -e 's/^.*(\(.*\)) at .*$/arp -d \1/p' \
|sh >/dev/null 2>&1
exit 1
fi
exit 0
|
