/usr/share/openvswitch/scripts/ovs-save is in openvswitch-switch 2.9.2-0ubuntu0.18.04.3.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 | #! /bin/sh
# Copyright (c) 2011, 2013, 2016 Nicira, Inc.
#
# 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.
case $0 in
*/*) dir0=`echo "$0" | sed 's,/[^/]*$,,'` ;;
*) dir0=./ ;;
esac
. "$dir0/ovs-lib" || exit 1
usage() {
UTIL=$(basename $0)
cat <<EOF
${UTIL}: Provides helper functions to save Open vSwitch's configuration.
usage: $0 COMMAND
Commands:
save-interfaces Outputs a shell script on stdout that will restore
the current kernel configuration of the specified
network interfaces, as well as the system iptables
configuration.
save-flows Outputs a shell script on stdout that will restore
OpenFlow flows of each Open vSwitch bridge.
This script is meant as a helper for the Open vSwitch init script commands.
EOF
}
save_interfaces () {
if (ip -V) > /dev/null 2>&1; then :; else
echo "$0: ip not found in $PATH" >&2
exit 1
fi
if test "$#" = 0; then
exit 0
fi
devs="$@"
for dev in $devs; do
state=`ip link show dev $dev` || continue
echo "# $dev"
# Link state (Ethernet addresses, up/down, ...)
linkcmd=
case $state in
*"state UP"* | *[,\<]"UP"[,\>]* )
linkcmd="$linkcmd up"
;;
*"state DOWN"*)
linkcmd="$linkcmd down"
;;
esac
if expr "$state" : '.*\bdynamic\b' > /dev/null; then
linkcmd="$linkcmd dynamic"
fi
if qlen=`expr "$state" : '.*qlen \([0-9]\+\)'`; then
linkcmd="$linkcmd txqueuelen $qlen"
fi
if hwaddr=`expr "$state" : '.*link/ether \([^ ]*\)'`; then
linkcmd="$linkcmd address $hwaddr"
fi
if brd=`expr "$state" : '.*brd \([^ ]*\)'`; then
linkcmd="$linkcmd broadcast $brd"
fi
if mtu=`expr "$state" : '.*mtu \([0-9]\+\)'`; then
linkcmd="$linkcmd mtu $mtu"
fi
if test -n "$linkcmd"; then
echo ip link set dev $dev down # Required to change hwaddr.
echo ip link set dev $dev $linkcmd
fi
move_ip_address $dev $dev
move_ip_routes $dev $dev
echo
done
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
}
get_highest_ofp_version() {
ovs-vsctl get bridge "$1" protocols | \
awk -F '"' '{ print (NF>1)? $(NF-1) : "OpenFlow14" }'
}
save_flows () {
if (ovs-ofctl --version) > /dev/null 2>&1; then :; else
echo "$0: ovs-ofctl not found in $PATH" >&2
exit 1
fi
workdir=$(mktemp -d "${TMPDIR:-/tmp}/ovs-save.XXXXXXXXXX")
for bridge in "$@"; do
# Get the highest enabled OpenFlow version
ofp_version=$(get_highest_ofp_version "$bridge")
printf "%s" "ovs-ofctl add-tlv-map ${bridge} '"
ovs-ofctl dump-tlv-map ${bridge} | \
awk '/^ 0x/ {if (cnt != 0) printf ","; \
cnt++;printf "{class="$1",type="$2",len="$3"}->"$4}'
echo "'"
printf "%s" "ovs-ofctl -O $ofp_version add-flows ${bridge} " \
"\"$workdir/$bridge.flows.dump\""
# If possible, use OpenFlow 1.4 atomic bundle transaction to add flows
[ ${ofp_version#OpenFlow} -ge 14 ] && echo " --bundle" || echo
ovs-ofctl -O $ofp_version dump-flows --no-names --no-stats "$bridge" | \
sed -e '/NXST_FLOW/d' \
-e '/OFPST_FLOW/d' \
-e 's/\(idle\|hard\)_age=[^,]*,//g' > \
"$workdir/$bridge.flows.dump"
done
echo "rm -rf \"$workdir\""
}
while [ $# -ne 0 ]
do
case $1 in
"save-flows")
shift
save_flows "$@"
exit 0
;;
"save-interfaces")
shift
save_interfaces "$@"
exit 0
;;
-h | --help)
usage
exit 0
;;
*)
echo >&2 "$0: unknown command \"$1\" (use --help for help)"
exit 1
;;
esac
done
exit 0
|