2 files changed, 55 insertions, 0 deletions
diff --git a/src/etc/dhcp/dhclient-exit-hooks.d/01-vyos-cleanup b/src/etc/dhcp/dhclient-exit-hooks.d/01-vyos-cleanup
new file mode 100644
index 000000000..ce846f6c3
--- /dev/null
+++ b/src/etc/dhcp/dhclient-exit-hooks.d/01-vyos-cleanup
@@ -0,0 +1,16 @@
+if [[ $reason =~ (EXPIRE|FAIL|RELEASE|STOP) ]]; then
+    # delete dynamic nameservers from a configuration if lease was deleted
+    logmsg info "Deleting nameservers with tag \"dhcp-${interface}\" via vyos-hostsd-client"
+    vyos-hostsd-client --delete-name-servers --tag dhcp-${interface}
+    # try to delete default ip route (NOTE: here we use 'ip' wrapper, therefore a route will be actually deleted via /usr/sbin/ip or vtysh, according to the system state)
+    for router in $old_routers; do
+        logmsg info "Deleting default route: via $router dev ${interface}"
+        ip -4 route del default via $router dev ${interface}
+    done
+fi
+
+if [[ $reason =~ (EXPIRE6|RELEASE6|STOP6) ]]; then
+    # delete dynamic nameservers from a configuration if lease was deleted
+    logmsg info "Deleting nameservers with tag \"dhcpv6-${interface}\" via vyos-hostsd-client"
+    vyos-hostsd-client --delete-name-servers --tag dhcpv6-${interface}
+fi
diff --git a/src/etc/dhcp/dhclient-exit-hooks.d/vyatta-dhclient-hook b/src/etc/dhcp/dhclient-exit-hooks.d/vyatta-dhclient-hook
new file mode 100644
index 000000000..dcd06644f
--- /dev/null
+++ b/src/etc/dhcp/dhclient-exit-hooks.d/vyatta-dhclient-hook
@@ -0,0 +1,39 @@
+#!/bin/sh
+
+# Author: Stig Thormodsrud <stig@vyatta.com>
+# Date: 2007
+# Description: dhcp client hook
+
+# **** License ****
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+# 
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# General Public License for more details.
+# 
+# This code was originally developed by Vyatta, Inc.
+# Portions created by Vyatta are Copyright (C) 2006, 2007, 2008 Vyatta, Inc.
+# All Rights Reserved.
+# **** End License ****
+
+# To enable this script set the following variable to "yes"
+RUN="yes"
+
+if [ "$RUN" = "yes" ]; then
+        LOG=/var/lib/dhcp/dhclient_"$interface"_lease
+        echo `date` > $LOG
+
+        for i in reason interface new_expiry new_dhcp_lease_time medium \
+                        alias_ip_address new_ip_address new_broadcast_address \
+                        new_subnet_mask new_domain_name new_network_number \
+                        new_domain_name_servers new_routers new_static_routes \
+			new_dhcp_server_identifier new_dhcp_message_type \
+                        old_ip_address old_subnet_mask old_domain_name \
+                        old_domain_name_servers old_routers \
+                        old_static_routes; do
+                echo $i=\'${!i}\' >> $LOG
+        done
+fi