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|
#!/bin/sh
### BEGIN INIT INFO
# Provides: nova-xcp-plugins nova-xcp-network
# Required-Start: $remote_fs $syslog xcp-networkd
# Required-Stop: $remote_fs $syslog
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: Apply initial OVS flows for Nova and network rules.
# Description: Apply initial OVS flows for Nova, and setup networking
# host rules for multi tenancy protections.
### END INIT INFO
# Written by Thomas Goirand <zigo@debian.org> using
# plugins/xenserver/networking/etc/init.d/{openvswitch-nova,host-up}
# as examples.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
. /lib/init/vars.sh
. /lib/lsb/init-functions
DESC="XCP openvswitch networking rules"
NAME="xcp-network"
OVS_CONFIGURE_BASE_FLOWS=/usr/lib/xcp/plugins/ovs_configure_base_flows.py
IPTABLES=/sbin/iptables
EBTABLES=/sbin/ebtables
ARPTABLES=/sbin/arptables
. /lib/lsb/init-functions
# Quick check if everything is there...
if ! [ -x ${OVS_CONFIGURE_BASE_FLOWS} ] ; then
exit 0
fi
if ! [ -x ${IPTABLES} -a -x ${EBTABLES} -a -x ${ARPTABLES} ] ; then
exit 0
fi
if ! [ -x /usr/bin/ovs-ofctl -a -x /usr/bin/ovs-vsctl -a -x /sbin/ip ] ; then
exit 0
fi
# Load the VERBOSE setting and other rcS variables
[ -r /lib/init/vars.sh ] && . /lib/init/vars.sh
# Get $INTERFACES from /etc/default/openvswitch-nova,
# default to all what is available.
if [ -r /etc/default/openvswitch-nova ] ; then
. /etc/default/openvswitch-nova
fi
if [ -z "${INTERFACES}" ] ; then
INTERFACES=$(cd /sys/class/net/; /bin/ls -d eth*)
fi
# Get $NETWORK_MODE from /etc/xcp/network.conf,
# default to openvswitch
if [ -e /etc/xcp/network.conf ] ; then
NETWORK_MODE=`cat /etc/xcp/network.conf`
fi
if [ -z "${NETWORK_MODE}" ] ; then
NETWORK_MODE=openvswitch
fi
# Check validity of $NETWORK_MODE
case "${NETWORK_MODE}" in
vswitch|openvswitch)
;;
bridge)
exit 0
;;
*)
echo "Open vSwitch disabled (/etc/xcp/network.conf is invalid)" >&2
exit 0
;;
esac
run_ovs_conf_base_flows () {
my_action="${1}"
my_all_interfaces=$(cd /sys/class/net/; /bin/ls -d eth*)
for i in ${INTERFACES} ; do
/usr/bin/python $OVS_CONFIGURE_BASE_FLOWS $my_action $i
done
}
# Functions to configure the firewall to work with openvswitch, XCP and nova
iptables_up () {
${IPTABLES} -P FORWARD DROP
for i in ${INTERFACES} ; do
${IPTABLES} -A FORWARD -m physdev --physdev-in ${i} -j ACCEPT
done
}
ebtables_up () {
${EBTABLES} -P FORWARD DROP
for i in ${INTERFACES} ; do
${EBTABLES} -A FORWARD -o ${i} -j ACCEPT
done
}
arptables_up () {
${ARPTABLES} -P FORWARD DROP
for i in ${INTERFACES} ; do
${ARPTABLES} -A FORWARD --opcode Request --in-interface ${i} -j ACCEPT
${ARPTABLES} -A FORWARD --opcode Reply --in-interface ${i} -j ACCEPT
done
}
iptables_down () {
${IPTABLES} -P FORWARD ACCEPT
for i in ${INTERFACES} ; do
${IPTABLES} -D FORWARD -m physdev --physdev-in ${i} -j ACCEPT
done
}
ebtables_down () {
${EBTABLES} -P FORWARD ACCEPT
for i in ${INTERFACES} ; do
${EBTABLES} -D FORWARD -o ${i} -j ACCEPT
done
}
arptables_down () {
${ARPTABLES} -P FORWARD ACCEPT
for i in ${INTERFACES} ; do
${ARPTABLES} -D FORWARD --opcode Request --in-interface ${i} -j ACCEPT
${ARPTABLES} -D FORWARD --opcode Reply --in-interface ${i} -j ACCEPT
done
}
case "${1}" in
start)
log_daemon_msg "Starting $DESC" "$NAME"
iptables_up
ebtables_up
arptables_up
run_ovs_conf_base_flows online
log_end_msg 0
;;
stop)
log_daemon_msg "Stopping $DESC" "$NAME"
run_ovs_conf_base_flows offline
iptables_down
ebtables_down
arptables_down
log_end_msg 0
;;
reload|force-reload)
log_daemon_msg "Restarting $DESC" "$NAME"
run_ovs_conf_base_flows reset
log_end_msg 0
;;
restart)
$0 start
sleep 1
$0 stop
;;
*)
echo "Usage: $0 {start|stop|status|restart|reload|force-reload}" >&2
;;
esac
exit 0
|
