Implement new virNetworkGetDHCPLeases APIv1.2.6-rc2v1.2.6

This API returns a list of DHCP leases for all network interfaces
connected to the given virtual network or limited output just for one
interface if mac is specified.

Example Output:
[{'iface': 'virbr3', 'ipaddr': '192.168.150.181', 'hostname': 'ubuntu14',
    'expirytime': 1403737495L, 'prefix': 24, 'clientid': None,
    'mac': '52:54:00:e8:73:eb', 'iaid': None, 'type': 0},
 {'iface': 'virbr3', 'ipaddr': '2001:db8:ca2:2:1::bd', 'hostname': 'fedora20-test',
    'expirytime': 1403738587L, 'prefix': 64, 'clientid': '00:04:b1:d8:86:42:e1:6a:aa:cf:d5:86:94:23:6f:94:04:cd',
    'mac': '52:54:00:5b:40:98', 'iaid': '5980312', 'type': 1}]

Signed-off-by: Peter Krempa <pkrempa@redhat.com>

1 files changed, 53 insertions, 0 deletions

diff --git a/examples/dhcpleases.py b/examples/dhcpleases.py
new file mode 100755
index 0000000..c172dc2
--- /dev/null
+++ b/examples/dhcpleases.py
@@ -0,0 +1,53 @@
+#!/usr/bin/env python
+# 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)
+
+conn = libvirt.open(uri)
+if conn == None:
+    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 (leases == None):
+    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"
+
+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}".format(time.strftime('%Y-%m-%d %H:%M:%S', time.localtime(lease['expirytime']))),
+    print "{0:18} {1:9}".format(lease['mac'], toIPAddrType(lease['type'])),
+    print "{0:<25} {1:15} {2}".format("{}/{}".format(lease['ipaddr'], lease['prefix']), lease['hostname'], lease['clientid'])