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mirror of https://gitlab.isc.org/isc-projects/dhcp synced 2025-09-05 08:45:35 +00:00

Add entry, exit and resolv.conf hooks.

This commit is contained in:
Ted Lemon
1999-03-29 22:35:19 +00:00
parent 4e9533d4cf
commit 8fddc394da
4 changed files with 150 additions and 50 deletions

View File

@@ -1,5 +1,33 @@
#!/bin/sh
make_resolv_conf() {
echo search $new_domain_name >/etc/resolv.conf
for nameserver in $new_domain_name_servers; do
echo nameserver $nameserver >>/etc/resolv.conf
done
}
# Must be used on exit. Invokes the local dhcp client exit hooks, if any.
exit_with_hooks() {
exit_status=$1
if [ -x /etc/dhclient-exit-hooks ]; then
. /etc/dhclient-exit-hooks
fi
# probably should do something with exit status of the local script
exit $exit_status
}
# Invoke the local dhcp client enter hooks, if they exist.
if [ -x /etc/dhclient-enter-hooks ]; then
exit_status=0
. /etc/dhclient-enter-hooks
# allow the local script to abort processing of this state
# local script must set exit_status variable to nonzero.
if [ $exit_status -ne 0 ]; then
exit $exit_status
fi
fi
if [ x$new_broadcast_address != x ]; then
new_broadcast_arg="broadcast $new_broadcast_address"
fi
@@ -27,7 +55,7 @@ if [ x$reason = xMEDIUM ]; then
$ifconfig $interface $medium
$ifconfig $interface
sleep 1
exit 0
exit_with_hooks 0
fi
if [ x$reason = xPREINIT ]; then
@@ -44,11 +72,11 @@ if [ x$reason = xPREINIT ]; then
$ifconfig $interface inet 0.0.0.0 netmask 0.0.0.0 \
broadcast 255.255.255.255 up
fi
exit 0
exit_with_hooks 0
fi
if [ x$reason = xARPCHECK ] || [ x$reason = xARPSEND ]; then
exit 0;
exit_with_hooks 0;
fi
if [ x$reason = xBOUND ] || [ x$reason = xRENEW ] || \
@@ -64,7 +92,6 @@ if [ x$reason = xBOUND ] || [ x$reason = xRENEW ] || \
for router in $old_routers; do
route delete default $router >/dev/null 2>&1
done
arp -n -a | sed -n -e 's/^.*(\(.*\)) at .*$/arp -n -d \1/p' |sh
fi
if [ x$old_ip_address = x ] || [ x$old_ip_address != x$new_ip_address ] || \
[ x$reason = xBOUND ] || [ x$reason = xREBOOT ]; then
@@ -84,7 +111,7 @@ if [ x$reason = xBOUND ] || [ x$reason = xRENEW ] || \
for nameserver in $new_domain_name_servers; do
echo nameserver $nameserver >>/etc/resolv.conf
done
exit 0
exit_with_hooks 0
fi
if [ x$reason = xEXPIRE ] || [ x$reason = xFAIL ]; then
@@ -98,14 +125,12 @@ if [ x$reason = xEXPIRE ] || [ x$reason = xFAIL ]; then
for router in $old_routers; do
route delete default $router >/dev/null 2>&1
done
arp -n -a | sed -n -e 's/^.*(\(.*\)) at .*$/arp -n -d \1/p' \
|sh >/dev/null 2>&1
fi
if [ x$alias_ip_address != x ]; then
$ifconfig ${interface}:1 inet $alias_ip_address $alias_subnet_arg
route add $alias_ip_address 127.0.0.1 1
fi
exit 0
exit_with_hooks 0
fi
if [ x$reason = xTIMEOUT ]; then
@@ -135,15 +160,13 @@ if [ x$reason = xTIMEOUT ]; then
rm -f /etc/resolv.conf
ln /etc/resolv.conf.std /etc/resolv.conf
fi
exit 0
exit_with_hooks 0
fi
$ifconfig $interface inet 0 down
for router in $old_routers; do
route delete default $router >/dev/null 2>&1
done
arp -n -a | sed -n -e 's/^.*(\(.*\)) at .*$/arp -n -d \1/p' \
|sh >/dev/null 2>&1
exit 1
exit_with_hooks 1
fi
exit 0
exit_with_hooks 0