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from vpp_object import VppObject
from vpp_interface import VppInterface
class VppLoInterface(VppInterface, VppObject):
"""VPP loopback interface."""
def __init__(self, test, lo_index):
""" Create VPP loopback interface """
self._test = test
self.add_vpp_config()
super(VppLoInterface, self).__init__(test)
self._lo_index = lo_index
def add_vpp_config(self):
r = self.test.vapi.create_loopback()
self._sw_if_index = r.sw_if_index
def remove_vpp_config(self):
self.test.vapi.delete_loopback(self.sw_if_index)
def query_vpp_config(self):
dump = self.vapi.sw_interface_dump()
return self.is_interface_config_in_dump(dump)
def is_interface_config_in_dump(self, dump):
for i in dump:
if i.interface_name.rstrip(' \t\r\n\0') == self.name and \
i.sw_if_index == self.sw_if_index:
return True
else:
return False
def object_id(self):
return "loopback-%d" % self._sw_if_index
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