5237c77cdd
Change-Id: Ic2eddc803f9ba8215e37388a686004830211cf6f Signed-off-by: Neale Ranns <neale.ranns@cisco.com>
309 lines
10 KiB
Python
309 lines
10 KiB
Python
#!/usr/bin/env python
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import unittest
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import socket
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from framework import VppTestCase, VppTestRunner, running_extended_tests
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from vpp_igmp import *
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from scapy.packet import Raw
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from scapy.layers.l2 import Ether
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from scapy.layers.inet import IP
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from scapy.contrib.igmpv3 import *
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from scapy.contrib.igmp import *
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class TestIgmp(VppTestCase):
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""" IGMP Test Case """
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def setUp(self):
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super(TestIgmp, self).setUp()
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self.create_pg_interfaces(range(2))
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self.sg_list = []
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self.config_list = []
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self.ip_addr = []
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for pg in self.pg_interfaces:
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pg.admin_up()
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pg.config_ip4()
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pg.resolve_arp()
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def tearDown(self):
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for pg in self.pg_interfaces:
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self.vapi.igmp_clear_interface(pg.sw_if_index)
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pg.unconfig_ip4()
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pg.admin_down()
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super(TestIgmp, self).tearDown()
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def send(self, ti, pkts):
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ti.add_stream(pkts)
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self.pg_enable_capture(self.pg_interfaces)
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self.pg_start()
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def test_igmp_parse_report(self):
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""" IGMP parse Membership Report """
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#
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# VPP acts as a router
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#
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self.vapi.want_igmp_events(1)
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# hos sends join IGMP 'join'
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p_join = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
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IP(src=self.pg0.remote_ip4, dst='224.0.0.22', tos=0xc0) /
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IGMPv3() /
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IGMPv3mr(numgrp=1) /
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IGMPv3gr(rtype=3, maddr="224.1.1.1", srcaddrs=["10.1.1.1"]))
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self.send(self.pg0, p_join)
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# search for the corresponding state created in VPP
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dump = self.vapi.igmp_dump()
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self.assertEqual(len(dump), 1)
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self.assertEqual(dump[0].sw_if_index, self.pg0.sw_if_index)
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self.assertEqual(dump[0].gaddr,
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socket.inet_pton(socket.AF_INET,
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"224.1.1.1"))
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self.assertEqual(dump[0].saddr,
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socket.inet_pton(socket.AF_INET,
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"10.1.1.1"))
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# VPP sends a notification that a new group has been joined
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ev = self.vapi.wait_for_event(2, "igmp_event")
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self.assertEqual(ev.saddr,
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socket.inet_pton(socket.AF_INET,
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"10.1.1.1"))
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self.assertEqual(ev.gaddr,
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socket.inet_pton(socket.AF_INET,
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"224.1.1.1"))
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self.assertEqual(ev.is_join, 1)
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# host sends IGMP leave
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p_leave = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
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IP(src=self.pg0.remote_ip4, dst='224.0.0.22', tos=0xc0) /
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IGMPv3() /
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IGMPv3mr(numgrp=1) /
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IGMPv3gr(rtype=4, maddr="224.1.1.1", srcaddrs=["10.1.1.1"]))
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self.send(self.pg0, p_leave)
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# VPP sends a notification that a new group has been left
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ev = self.vapi.wait_for_event(2, "igmp_event")
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self.assertEqual(ev.saddr,
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socket.inet_pton(socket.AF_INET,
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"10.1.1.1"))
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self.assertEqual(ev.gaddr,
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socket.inet_pton(socket.AF_INET,
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"224.1.1.1"))
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self.assertEqual(ev.is_join, 0)
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# state gone
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dump = self.vapi.igmp_dump()
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self.assertFalse(dump)
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# resend the join
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self.send(self.pg0, p_join)
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dump = self.vapi.igmp_dump()
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self.assertEqual(len(dump), 1)
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self.assertEqual(dump[0].sw_if_index, self.pg0.sw_if_index)
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self.assertEqual(dump[0].gaddr,
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socket.inet_pton(socket.AF_INET,
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"224.1.1.1"))
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self.assertEqual(dump[0].saddr,
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socket.inet_pton(socket.AF_INET,
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"10.1.1.1"))
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# IGMP block
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p_block = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
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IP(src=self.pg0.remote_ip4, dst='224.0.0.22', tos=0xc0) /
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IGMPv3() /
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IGMPv3mr(numgrp=1) /
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IGMPv3gr(rtype=6, maddr="224.1.1.1", srcaddrs=["10.1.1.1"]))
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self.send(self.pg0, p_block)
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dump = self.vapi.igmp_dump()
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self.assertFalse(dump)
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def verify_general_query(self, p):
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ip = p[IP]
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self.assertEqual(ip.dst, "224.0.0.1")
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self.assertEqual(ip.proto, 2)
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igmp = p[IGMPv3]
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self.assertEqual(igmp.type, 0x11)
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self.assertEqual(igmp.gaddr, "0.0.0.0")
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def test_igmp_send_query(self):
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""" IGMP send General Query """
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#
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# VPP acts as a router.
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# Send a membership report so VPP builds state
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#
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p_mr = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
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IP(src=self.pg0.remote_ip4, dst='224.0.0.22') /
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IGMPv3() /
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IGMPv3mr(numgrp=1) /
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IGMPv3gr(rtype=3, maddr="224.1.1.1", srcaddrs=["10.1.1.1"]))
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self.send(self.pg0, p_mr)
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self.logger.info(self.vapi.cli("sh igmp config"))
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#
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# wait for VPP to send out the General Query
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#
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capture = self.pg0.get_capture(1, timeout=61)
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self.verify_general_query(capture[0])
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#
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# the state will expire in 10 more seconds
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#
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self.sleep(10)
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self.assertFalse(self.vapi.igmp_dump())
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@unittest.skipUnless(running_extended_tests(), "part of extended tests")
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def test_igmp_src_exp(self):
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""" IGMP per source timer """
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#
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# VPP Acts as a router
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#
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# Host join for (10.1.1.1,224.1.1.1)
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p_mr1 = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
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IP(src=self.pg0.remote_ip4, dst='224.0.0.22') /
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IGMPv3() /
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IGMPv3mr(numgrp=1) /
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IGMPv3gr(rtype=3, maddr="224.1.1.1", srcaddrs=["10.1.1.1"]))
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self.send(self.pg0, p_mr1)
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# VPP (router) sends General Query
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capture = self.pg0.get_capture(1, timeout=61)
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self.verify_general_query(capture[0])
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# host join for same G and another S: (10.1.1.2,224.1.1.1)
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# therefore leaving (10.1.1.1,224.1.1.1)
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p_mr2 = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
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IP(src=self.pg0.remote_ip4, dst='224.0.0.22') /
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IGMPv3() /
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IGMPv3mr(numgrp=1) /
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IGMPv3gr(rtype=2, maddr="224.1.1.1", srcaddrs=["10.1.1.2"]))
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self.send(self.pg0, p_mr2)
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# wait for VPP to send general query
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capture = self.pg0.get_capture(1, timeout=61)
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self.verify_general_query(capture[0])
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# host leaves (10.1.1.2,224.1.1.1)
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p_l = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
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IP(src=self.pg0.remote_ip4, dst='224.0.0.22') /
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IGMPv3() /
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IGMPv3mr(numgrp=1) /
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IGMPv3gr(rtype=2, maddr="224.1.1.1", srcaddrs=["10.1.1.2"]))
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self.send(self.pg0, p_l)
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# FIXME BUG
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p_l = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
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IP(src=self.pg0.remote_ip4, dst='224.0.0.22') /
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IGMPv3() /
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IGMPv3mr(numgrp=1) /
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IGMPv3gr(rtype=2, maddr="224.1.1.1", srcaddrs=["10.1.1.1"]))
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self.send(self.pg0, p_l)
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#
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# host has left all groups, no state left.
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#
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self.sleep(10)
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self.logger.error(self.vapi.cli("sh igmp config"))
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self.assertFalse(self.vapi.igmp_dump())
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def test_igmp_query_resp(self):
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""" IGMP General Query response """
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#
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# VPP acting as a host.
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# Add a listener in VPP for (10.1.1.1,244.1.1.1)
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#
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self.config_list.append(
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VppIgmpConfig(
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self, self.pg0.sw_if_index, IgmpSG(
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socket.inet_pton(
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socket.AF_INET, "10.1.1.1"), socket.inet_pton(
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socket.AF_INET, "224.1.1.1"))))
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self.config_list[0].add_vpp_config()
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# verify state exists
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self.assertTrue(self.vapi.igmp_dump(self.pg0.sw_if_index))
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#
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# Send a general query (from a router)
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#
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p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
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IP(src=self.pg0.remote_ip4, dst='224.0.0.1', tos=0xc0) /
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IGMPv3(type=0x11, mrcode=100) /
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IGMPv3mq(gaddr="0.0.0.0"))
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self.send(self.pg0, p)
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#
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# expect VPP to respond with a membership report for the
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# (10.1.1.1, 224.1.1.1) state
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#
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capture = self.pg0.get_capture(1, timeout=10)
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self.assertEqual(capture[0][IGMPv3].type, 0x22)
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self.assertEqual(capture[0][IGMPv3mr].numgrp, 1)
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self.assertEqual(capture[0][IGMPv3gr].rtype, 1)
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self.assertEqual(capture[0][IGMPv3gr].numsrc, 1)
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self.assertEqual(capture[0][IGMPv3gr].maddr, "224.1.1.1")
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self.assertEqual(len(capture[0][IGMPv3gr].srcaddrs), 1)
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self.assertEqual(capture[0][IGMPv3gr].srcaddrs[0], "10.1.1.1")
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def test_igmp_listen(self):
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""" IGMP listen (S,G)s """
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#
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# VPP acts as a host
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# Add IGMP group state to multiple interfaces and validate its
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# presence
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#
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for pg in self.pg_interfaces:
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self.sg_list.append(IgmpSG(socket.inet_pton(
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socket.AF_INET, "10.1.1.%d" % pg._sw_if_index),
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socket.inet_pton(socket.AF_INET, "224.1.1.1")))
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for pg in self.pg_interfaces:
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self.config_list.append(
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VppIgmpConfig(
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self,
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pg._sw_if_index,
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self.sg_list))
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self.config_list[-1].add_vpp_config()
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for config in self.config_list:
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dump = self.vapi.igmp_dump(config.sw_if_index)
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self.assertTrue(dump)
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self.assertEqual(len(dump), len(config.sg_list))
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for idx, e in enumerate(dump):
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self.assertEqual(e.sw_if_index, config.sw_if_index)
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self.assertEqual(e.saddr, config.sg_list[idx].saddr)
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self.assertEqual(e.gaddr, config.sg_list[idx].gaddr)
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for config in self.config_list:
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config.remove_vpp_config()
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dump = self.vapi.igmp_dump()
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self.assertFalse(dump)
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if __name__ == '__main__':
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unittest.main(testRunner=VppTestRunner)
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