Obtaining the ip address of the guest and update address cache

virttest/libvirt_vm.py

@@ -30,6 +30,7 @@
     test_setup,
     utils_logfile,
     utils_misc,
+    utils_net,
     utils_package,
     utils_selinux,
     virsh,
@@ -378,6 +379,15 @@ def backup_xml(self, active=False):
             LOG.error("Failed to backup xml file:\n%s", detail)
             return ""
 
+    def _get_address(self, index=0, ip_version="ipv4", session=None, timeout=60.0):
+        try:
+            return super()._get_address(index, ip_version, session, timeout)
+        except virt_vm.VMIPAddressMissingError:
+            mac = self.get_mac_address(index).lower()
+            ipaddr = utils_net.obtain_guest_ip_from_dhcp_leases(mac)
+            self.address_cache[mac] = ipaddr
+            return ipaddr
+
     def clone(
         self,
         name=None,

virttest/utils_net.py

@@ -35,6 +35,7 @@
     utils_misc,
     utils_package,
     utils_selinux,
+    virsh,
 )
 from virttest.remote import RemoteRunner
 from virttest.staging import service, utils_memory
@@ -4889,3 +4890,21 @@ def check_class_rules(ifname, rule_id, bandwidth, expect_none=False):
         stacktrace.log_exc_info(sys.exc_info())
         return False
     return True
+
+
+def obtain_guest_ip_from_dhcp_leases(mac):
+    """
+    Obtaining the guest ip address from virsh-net-dhcp-leases command
+    :param: Mac address of the guest
+    :return: return ip-address if found for given mac in the
+             virsh-net-dhcp-leases default table, else return None
+    """
+    output = virsh.net_dhcp_leases("default")
+    lines = output.stdout.splitlines()
+    for line in lines:
+        if mac in line:
+            parts = line.split()
+            for part in parts:
+                if "/" in part:
+                    return part.split("/")[0]
+    return None