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#!/usr/bin/env python3
# netdhcpleases - print leases info for given virtual network
import libvirt
import sys
import time
def usage():
print("Usage: %s [URI] NETWORK" % sys.argv[0])
print(" Print leases info for a given virtual network")
uri = None
network = None
args = len(sys.argv)
if args == 2:
network = sys.argv[1]
elif args == 3:
uri = sys.argv[1]
network = sys.argv[2]
else:
usage()
sys.exit(2)
try:
conn = libvirt.open(uri)
except libvirt.libvirtError:
print("Unable to open connection to libvirt")
sys.exit(1)
try:
net = conn.networkLookupByName(network)
except libvirt.libvirtError:
print("Network %s not found" % network)
sys.exit(0)
leases = net.DHCPLeases()
if not leases:
print("Failed to get leases for %s" % net.name())
sys.exit(0)
def toIPAddrType(addrType):
if addrType == libvirt.VIR_IP_ADDR_TYPE_IPV4:
return "ipv4"
elif addrType == libvirt.VIR_IP_ADDR_TYPE_IPV6:
return "ipv6"
return "Unknown"
print(" {0:20} {1:18} {2:9} {3:25} {4:15} {5}".format("Expiry Time",
"MAC address",
"Protocol",
"IP address",
"Hostname",
"Client ID or DUID"))
print("-"*115)
for lease in leases:
print(" {0:20} {1:18} {2:9} {3:25} {4:15} {5}".format(
time.strftime('%Y-%m-%d %H:%M:%S', time.localtime(lease['expirytime'])),
lease['mac'],
toIPAddrType(lease['type']),
"{}/{}".format(lease['ipaddr'], lease['prefix']),
lease['hostname'],
lease['clientid']
))
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