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138 lines
3.7 KiB
Bash
Executable File
138 lines
3.7 KiB
Bash
Executable File
#!/bin/bash
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# Licensed to the Apache Software Foundation (ASF) under one
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# or more contributor license agreements. See the NOTICE file
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# distributed with this work for additional information
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# regarding copyright ownership. The ASF licenses this file
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# to you under the Apache License, Version 2.0 (the
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# "License"); you may not use this file except in compliance
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# with the License. You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing,
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# software distributed under the License is distributed on an
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# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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# KIND, either express or implied. See the License for the
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# specific language governing permissions and limitations
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# under the License.
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#!/bin/bash
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# We're trying to do the impossible here by allowing pvlan on kvm / xen. As only God can do the impossible, and we've got too much ego to
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# admit that we can't, we're just hacking our way around it.
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# We're pretty much crafting two vlan headers, one with the primary vlan and the other with the secondary and with a few fancy rules
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# it managed to work. But take note that the'res no checking over here for secondary vlan overlap. That has to be handled while
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# creating the pvlan!!
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exec 2>&1
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usage() {
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printf "Usage: %s: (-A|-D) (-P/I/C) -b <bridge/switch> -p <primary vlan> -s <secondary vlan> -m <VM MAC> -d <DHCP IP> -h \n" $(basename $0) >&2
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exit 2
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}
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br=
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pri_vlan=
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sec_vlan=
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vm_mac=
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dhcp_ip=
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op=
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type=
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while getopts 'ADPICb:p:s:m:d:h' OPTION
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do
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case $OPTION in
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A) op="add"
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;;
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D) op="del"
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;;
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P) type="P"
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;;
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I) type="I"
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;;
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C) type="C"
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;;
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b) br="$OPTARG"
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;;
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p) pri_vlan="$OPTARG"
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;;
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s) sec_vlan="$OPTARG"
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;;
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m) vm_mac="$OPTARG"
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;;
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d) dhcp_ip="$OPTARG"
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;;
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h) usage
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exit 1
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;;
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esac
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done
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if [ -z "$op" ]
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then
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echo Missing operation pararmeter!
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exit 1
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fi
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if [ -z "$type" ]
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then
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echo Missing pvlan type pararmeter!
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exit 1
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fi
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if [ -z "$br" ]
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then
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echo Missing parameter bridge!
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exit 1
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fi
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if [ -z "$vm_mac" ]
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then
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echo Missing parameter VM MAC!
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exit 1
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fi
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if [ -z "$pri_vlan" ]
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then
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echo Missing parameter primary vlan!
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exit 1
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fi
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if [ -z "$sec_vlan" ]
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then
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echo Missing parameter secondary vlan!
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exit 1
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fi
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if [ -z "$dhcp_ip" ]
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then
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echo Missing parameter DHCP IP!
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exit 1
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fi
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find_port() {
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mac=`echo "$1" | sed -e 's/:/\\\:/g'`
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port=`ovs-vsctl --column ofport find interface external_ids:attached-mac="$mac" | tr -d ' ' | cut -d ':' -f 2`
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echo $port
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}
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ovs-vsctl set bridge $br protocols=OpenFlow10,OpenFlow11,OpenFlow12,OpenFlow13
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ovs-vsctl set Open_vSwitch . other_config:vlan-limit=2
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if [ "$op" == "add" ]
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then
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dhcp_port=$(find_port $vm_mac)
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ovs-ofctl add-flow $br table=0,priority=200,arp,dl_vlan=$pri_vlan,nw_dst=$dhcp_ip,actions=strip_vlan,resubmit\(,1\)
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ovs-ofctl add-flow $br table=1,priority=200,arp,dl_vlan=$sec_vlan,nw_dst=$dhcp_ip,actions=strip_vlan,output:$dhcp_port
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ovs-ofctl add-flow $br table=0,priority=100,udp,dl_vlan=$pri_vlan,nw_dst=255.255.255.255,tp_dst=67,actions=strip_vlan,resubmit\(,1\)
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ovs-ofctl add-flow $br table=1,priority=100,udp,dl_vlan=$sec_vlan,nw_dst=255.255.255.255,tp_dst=67,actions=strip_vlan,output:$dhcp_port
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else
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ovs-ofctl del-flows --strict $br table=0,priority=200,arp,dl_vlan=$pri_vlan,nw_dst=$dhcp_ip
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ovs-ofctl del-flows --strict $br table=1,priority=200,arp,dl_vlan=$sec_vlan,nw_dst=$dhcp_ip
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ovs-ofctl del-flows --strict $br table=0,priority=100,udp,dl_vlan=$pri_vlan,nw_dst=255.255.255.255,tp_dst=67
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ovs-ofctl del-flows --strict $br table=1,priority=100,udp,dl_vlan=$sec_vlan,nw_dst=255.255.255.255,tp_dst=67
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fi
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