libvirt の python API リファレンスが無い。。。。。でもがんばりました。
VM中心の表示（tapinfo.py）とブリッジ中心の表示（brinfo.py）を分けました。
[root@rhel55kvm ~]# ./tapinfo.py
Domain Tap MAC Address Network Bridge
------------------------------------------------------------------------------
rhel55-vm01 vnet0 54:52:00:4a:2e:8b default virbr0
rhel55-vm01 vnet1 54:52:00:3d:cb:db br101
rhel55-vm01 vnet2 54:52:00:00:cf:0c br0
------------------------------------------------------------------------------
rhel60-vm01 vnet3 54:52:00:34:7f:36 default virbr0
[root@rhel55kvm ~]# ./brinfo.py
Bridge Netowrk Device Domain MAC Address
------------------------------------------------------------------------------
br0 vnet2 rhel55-vm01 54:52:00:00:cf:0c
eth0
------------------------------------------------------------------------------
br101 vnet1 rhel55-vm01 54:52:00:3d:cb:db
eth1.101
------------------------------------------------------------------------------
br102 eth1.102
------------------------------------------------------------------------------
virbr0 default vnet0 rhel55-vm01 54:52:00:4a:2e:8b
vnet3 rhel60-vm01 54:52:00:34:7f:36
------------------------------------------------------------------------------
virbr1 network01
------------------------------------------------------------------------------
virbr2 network02
------------------------------------------------------------------------------
virbr3 network03
------------------------------------------------------------------------------
virbr4 network04
------------------------------------------------------------------------------
virbr5 network05
#!/usr/bin/python # # tapinfo.py : List TAP device info for running VMs # # 2010/01/20 ver1.0 # 2010/01/21 ver1.1 # # Copyright (C) 2010 Etsuji Nakai # # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 3 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program. If not, see <http://www.gnu.org/licenses/>. import libvirt import os import re from xml.dom import minidom Conn = libvirt.open( "qemu:///system" ) def showTaps(): vnetRe = re.compile( "vnet\d+" ) fmt = "%-16s %-12s %-18s %-12s %-12s" print fmt % ( "Domain", "Tap", "MAC Address", "Network", "Bridge" ) for id in Conn.listDomainsID(): print "-" * 78 vm = Conn.lookupByID( id ) vmXMLDesc = minidom.parseString( vm.XMLDesc( 0 ) ) for iface in vmXMLDesc.getElementsByTagName( "interface" ): ifaceType = iface.getAttribute( "type" ) if ifaceType == "network": network = iface.getElementsByTagName( "source" )[0].getAttribute( "network" ) netXMLDesc = minidom.parseString( Conn.networkLookupByName( network ).XMLDesc( 0 ) ) bridge = netXMLDesc.getElementsByTagName( "bridge" )[ 0 ].getAttribute( "name" ) elif ifaceType == "bridge": network = "" bridge = iface.getElementsByTagName( "source" )[0].getAttribute( "bridge" ) mac = iface.getElementsByTagName( "mac" )[0].getAttribute( "address" ) device = iface.getElementsByTagName( "target" )[0].getAttribute( "dev" ) print fmt % ( vm.name(), device, mac, network, bridge ) if __name__ == "__main__": showTaps() print
#!/usr/bin/python # # brinfo.py : List bridge info for running VMs # # 2011/01/24 ver1.0 # 2011/01/27 ver1.1 some golfing... # 2012/05/05 ver1.2 modifed regular expression for RHEL6 # # Copyright (C) 2010 Etsuji Nakai # # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 3 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program. If not, see <http://www.gnu.org/licenses/>. import libvirt import os import re import commands from xml.dom import minidom Conn = libvirt.open( "qemu:///system" ) VmName, NetName, MacAddr = {}, {}, {} def getTaps(): for id in Conn.listDomainsID(): vm = Conn.lookupByID( id ) vmXMLDesc = minidom.parseString( vm.XMLDesc( 0 ) ) for iface in vmXMLDesc.getElementsByTagName( "interface" ): tapDevice = iface.getElementsByTagName( "target" )[0].getAttribute( "dev" ) VmName[ tapDevice ] = vm.name() MacAddr[ tapDevice ] = iface.getElementsByTagName( "mac" )[0].getAttribute( "address" ) def getNetworks(): for net in Conn.listNetworks(): network = Conn.networkLookupByName( net ) NetName[ network.bridgeName() ] = net def showBridges(): fmt = "%-12s %-12s %-12s %-16s %-18s" bridgeAndDeviceRe = re.compile( "^(\S+)?\s+.*\s+(\S+)?$" ) print fmt % ( "Bridge", "Netowrk", "Device", "Domain", "MAC Address" ) brshow = commands.getoutput( "/usr/sbin/brctl show" ).split( "\n" ) brshow.pop(0) for line in brshow: ( bridge, device ) = bridgeAndDeviceRe.search( line ).groups() if bridge == None: bridge = "" if device == None: device = "" network = NetName.get( bridge, "" ) vm = VmName.get( device, "" ) mac = MacAddr.get( device, "" ) if bridge != "": print "-" * 78 print fmt % ( bridge, network, device, vm, mac ) if __name__ == "__main__": getTaps() getNetworks() showBridges() print
※ 補足です。libvirt のクラスとメソッド一覧はここにありました。
/usr/share/doc/libvirt-python-0.6.3/libvirtclass.txt
# pydoc libvirt でもいいです。
