#! /bin/sh
-# Copyright (c) 2011 Nicira, Inc.
+# Copyright (c) 2011, 2013 Nicira, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
configuration.
save-flows Outputs a shell script on stdout that will restore
Openflow flows of each Open vSwitch bridge.
- save-datapaths Outputs a shell script on stdout that will restore
- the datapaths with the same port numbers as before.
-
+ save-ofports Outputs a shell script on stdout that will restore
+ the ofport value across a force-reload-kmod.
This script is meant as a helper for the Open vSwitch init script commands.
EOF
}
-PATH=/sbin:/bin:/usr/sbin:/usr/bin
-
-missing_program () {
- save_IFS=$IFS
- IFS=:
- for dir in $PATH; do
- IFS=$save_IFS
- if test -x $dir/$1; then
- return 1
- fi
- done
- IFS=$save_IFS
- return 0
-}
-
save_interfaces () {
- if missing_program ip; then
+ if (ip -V) > /dev/null 2>&1; then :; else
echo "$0: ip not found in $PATH" >&2
exit 1
fi
echo
done
- if missing_program iptables-save; then
- echo "# iptables-save not found in $PATH, not saving iptables state"
- else
+ if (iptables-save) > /dev/null 2>&1; then
echo "# global"
echo "iptables-restore <<'EOF'"
iptables-save
echo "EOF"
+ else
+ echo "# iptables-save not found in $PATH, not saving iptables state"
fi
}
save_flows () {
- if missing_program ovs-ofctl; then
+ if (ovs-ofctl --version) > /dev/null 2>&1; then :; else
echo "$0: ovs-ofctl not found in $PATH" >&2
exit 1
fi
}
ovs_vsctl () {
- ovs-vsctl --no-wait --timeout=5 "$@"
+ ovs-vsctl --no-wait "$@"
}
-save_datapaths () {
- if missing_program ovs-dpctl; then
- echo "$0: ovs-dpctl not found in $PATH" >&2
- exit 1
- fi
- if missing_program ovs-vsctl; then
+save_ofports ()
+{
+ if (ovs-vsctl --version) > /dev/null 2>&1; then :; else
echo "$0: ovs-vsctl not found in $PATH" >&2
exit 1
fi
- for dp in "$@"; do
- echo "ovs-dpctl add-dp ${dp}"
- ovs-dpctl show $dp | while read line; do
- # An example 'ovs-dpctl show' output looks like this:
- # system@br1:
- # lookups: hit:0 missed:0 lost:0
- # flows: 0
- # port 0: br1 (internal)
- # port 2: gre2886795521 (ipsec_gre: key=flow, pmtud=false, remote_ip=172.17.1.1, tos=inherit)
- # port 3: gre1 (ipsec_gre: remote_ip=192.168.113.1)
- # port 14: gre2 (gre: remote_ip=192.168.115.1)
- # port 15: gre3 (gre64: remote_ip=192.168.116.1)
- # port 16: eth0
- # port 17: br1- (patch: peer=br1+)
-
- # Skip lines which do not have 'port'
- if port_no=`expr "${line}" : '.*port \([0-9]\+\):'`; then :; else
- continue
- fi
-
- netdev=`echo ${line} | awk '{print $3}'`
-
- # Do not add port that has the same name as the datapath. It gets
- # added by default.
- [ "${dp#system@}" = "${netdev}" ] && continue
-
- type=`echo ${line} | awk '{print $4}' | sed 's/[:)(]//g'`
- [ ! -n "${type}" ] && type="system"
-
- command="ovs-dpctl add-if ${dp}\
- ${netdev},type=${type},port_no=${port_no}"
-
- options=`echo ${line} | awk -F: '{print $3}' | sed 's/[) ]//g'`
- [ -n "${options}" ] && command="${command},${options}"
-
- # For ipsec, ovs-dpctl does not show the key value pairs related
- # to certificates. Get that information from ovs-vsctl.
- if [ "${type}" = "ipsec_gre" ] ; then
- if peer_cert=`ovs_vsctl get interface \
- "${netdev}" options:peer_cert 2>/dev/null`; then
- # The option peer_cert comes with an accompanying
- # "certificate" or "use_ssl_cert"
- if certificate=`ovs_vsctl get interface "${netdev}" \
- options:certificate 2>/dev/null` ; then
- command="${command},peer_cert=${peer_cert},certificate=${certificate}"
- else
- use_ssl_cert=`ovs_vsctl get interface "${netdev}" \
- options:use_ssl_cert 2>/dev/null`
- command="${command},peer_cert=${peer_cert},use_ssl_cert=${use_ssl_cert}"
- fi
- else
- psk=`ovs_vsctl get interface "${netdev}" \
- options:psk 2>/dev/null`
- command="${command},psk=${psk}"
- fi
- fi
- echo ${command}
+ for bridge in "$@"; do
+ count=0
+ for iface in `ovs_vsctl list-ifaces ${bridge}`; do
+ ofport=`ovs_vsctl get interface ${iface} ofport`
+ [ "${count}" -eq 0 ] && cmd="ovs-vsctl --no-wait"
+ cmd="${cmd} -- --if-exists set interface "${iface}" \
+ ofport_request="${ofport}""
+
+ # Run set interface command on 50 ports at a time.
+ count=`expr ${count} + 1`
+ [ "${count}" -eq 50 ] && count=0 && echo "${cmd}" && cmd=""
done
+ echo "${cmd}"
done
}
while [ $# -ne 0 ]
do
case $1 in
- "save-datapaths")
- shift
- save_datapaths "$@"
- exit 0
- ;;
"save-flows")
shift
save_flows "$@"
save_interfaces "$@"
exit 0
;;
+ "save-ofports")
+ shift
+ save_ofports "$@"
+ exit 0
+ ;;
-h | --help)
usage
exit 0