75 lines
2.3 KiB
Python
75 lines
2.3 KiB
Python
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#!/usr/bin/env python3
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# Copyright (c) 2021 Graphiant, Inc.
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import unittest
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import scapy.compat
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from scapy.layers.inet import IP, UDP
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from scapy.layers.l2 import Ether
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from scapy.packet import Raw
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from framework import VppTestCase, VppTestRunner
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from vpp_papi import VppEnum
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from vpp_policer import VppPolicer, PolicerAction
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NUM_PKTS = 67
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class TestPolicerInput(VppTestCase):
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""" Policer on an input interface """
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def setUp(self):
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super(TestPolicerInput, self).setUp()
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self.create_pg_interfaces(range(2))
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for i in self.pg_interfaces:
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i.admin_up()
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i.config_ip4()
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i.resolve_arp()
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self.pkt = (Ether(src=self.pg0.remote_mac,
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dst=self.pg0.local_mac) /
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IP(src=self.pg0.remote_ip4, dst=self.pg1.remote_ip4) /
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UDP(sport=1234, dport=1234) /
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Raw(b'\xa5' * 100))
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def tearDown(self):
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for i in self.pg_interfaces:
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i.unconfig_ip4()
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i.admin_down()
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super(TestPolicerInput, self).tearDown()
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def test_policer_input(self):
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action_tx = PolicerAction(
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VppEnum.vl_api_sse2_qos_action_type_t.SSE2_QOS_ACTION_API_TRANSMIT,
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0)
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policer = VppPolicer(self, "pol1", 80, 0, 1000, 0,
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conform_action=action_tx,
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exceed_action=action_tx,
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violate_action=action_tx)
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policer.add_vpp_config()
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# Start policing on pg0
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policer.apply_vpp_config(self.pg0.sw_if_index, True)
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rx = self.send_and_expect(self.pg0, self.pkt * NUM_PKTS, self.pg1)
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stats = policer.get_stats()
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# Single rate, 2 colour policer - expect conform, violate but no exceed
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self.assertGreater(stats['conform_packets'], 0)
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self.assertEqual(stats['exceed_packets'], 0)
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self.assertGreater(stats['violate_packets'], 0)
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# Stop policing on pg0
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policer.apply_vpp_config(self.pg0.sw_if_index, False)
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rx = self.send_and_expect(self.pg0, self.pkt * NUM_PKTS, self.pg1)
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statsnew = policer.get_stats()
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# No new packets counted
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self.assertEqual(stats, statsnew)
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policer.remove_vpp_config()
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if __name__ == '__main__':
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unittest.main(testRunner=VppTestRunner)
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