3 # Copyright (c) 2011, 2013, 2016 Nicira, Inc.
5 # Licensed under the Apache License, Version 2.0 (the "License");
6 # you may not use this file except in compliance with the License.
7 # You may obtain a copy of the License at:
9 # http://www.apache.org/licenses/LICENSE-2.0
11 # Unless required by applicable law or agreed to in writing, software
12 # distributed under the License is distributed on an "AS IS" BASIS,
13 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 # See the License for the specific language governing permissions and
15 # limitations under the License.
18 */*) dir0=`echo "$0" | sed 's,/[^/]*$,,'` ;;
21 . "$dir0/ovs-lib" || exit 1
26 ${UTIL}: Provides helper functions to save Open vSwitch's configuration.
30 save-interfaces Outputs a shell script on stdout that will restore
31 the current kernel configuration of the specified
32 network interfaces, as well as the system iptables
34 save-flows Outputs a shell script on stdout that will restore
35 OpenFlow flows of each Open vSwitch bridge.
36 This script is meant as a helper for the Open vSwitch init script commands.
41 if (ip -V) > /dev/null 2>&1; then :; else
42 echo "$0: ip not found in $PATH" >&2
46 if test "$#" = 0; then
52 state=`ip link show dev $dev` || continue
55 # Link state (Ethernet addresses, up/down, ...)
58 *"state UP"* | *[,\<]"UP"[,\>]* )
62 linkcmd="$linkcmd down"
65 if expr "$state" : '.*\bdynamic\b' > /dev/null; then
66 linkcmd="$linkcmd dynamic"
68 if qlen=`expr "$state" : '.*qlen \([0-9]\+\)'`; then
69 linkcmd="$linkcmd txqueuelen $qlen"
71 if hwaddr=`expr "$state" : '.*link/ether \([^ ]*\)'`; then
72 linkcmd="$linkcmd address $hwaddr"
74 if brd=`expr "$state" : '.*brd \([^ ]*\)'`; then
75 linkcmd="$linkcmd broadcast $brd"
77 if mtu=`expr "$state" : '.*mtu \([0-9]\+\)'`; then
78 linkcmd="$linkcmd mtu $mtu"
80 if test -n "$linkcmd"; then
81 echo ip link set dev $dev down # Required to change hwaddr.
82 echo ip link set dev $dev $linkcmd
85 move_ip_address $dev $dev
87 move_ip_routes $dev $dev
92 if (iptables-save) > /dev/null 2>&1; then
94 echo "iptables-restore <<'EOF'"
98 echo "# iptables-save not found in $PATH, not saving iptables state"
103 if (ovs-ofctl --version) > /dev/null 2>&1; then :; else
104 echo "$0: ovs-ofctl not found in $PATH" >&2
108 for bridge in "$@"; do
109 echo "ovs-ofctl add-flows ${bridge} - << EOF"
110 ovs-ofctl dump-flows "${bridge}" | sed -e '/NXST_FLOW/d' \
111 -e 's/\(idle\|hard\)_age=[^,]*,//g'
134 echo >&2 "$0: unknown command \"$1\" (use --help for help)"