--- /dev/null
+#!/usr/bin/env python
+
+import unittest
+import socket
+
+from framework import VppTestCase, VppTestRunner, running_extended_tests
+from vpp_igmp import *
+
+from scapy.packet import Raw
+from scapy.layers.l2 import Ether
+from scapy.layers.inet import IP
+from scapy.contrib.igmpv3 import *
+from scapy.contrib.igmp import *
+
+
+def checkIGMPv3():
+ try:
+ tmp = IGMPv3()
+ tmp = IGMPv3mr()
+ tmp = IGMPv3gr()
+ tmp = IGMPv3mq()
+ except NameError:
+ return False
+ return True
+
+
+class TestIgmp(VppTestCase):
+ """ IGMP Test Case """
+
+ def setUp(self):
+ super(TestIgmp, self).setUp()
+
+ self.create_pg_interfaces(range(2))
+ self.sg_list = []
+ self.config_list = []
+
+ self.ip_addr = []
+ for pg in self.pg_interfaces:
+ pg.admin_up()
+ pg.config_ip4()
+ pg.resolve_arp()
+
+ def tearDown(self):
+ for pg in self.pg_interfaces:
+ self.vapi.igmp_clear_interface(pg.sw_if_index)
+ pg.unconfig_ip4()
+ pg.admin_down()
+ super(TestIgmp, self).tearDown()
+
+ def send(self, ti, pkts):
+ ti.add_stream(pkts)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+
+ @unittest.skipUnless(checkIGMPv3(), "missing scapy igmpv3 implementation")
+ def test_igmp_parse_report(self):
+ """ IGMP parse Membership Report """
+
+ #
+ # VPP acts as a router
+ #
+ self.vapi.want_igmp_events(1)
+
+ # hos sends join IGMP 'join'
+ p_join = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
+ IP(src=self.pg0.remote_ip4, dst='224.0.0.22', tos=0xc0) /
+ IGMPv3() /
+ IGMPv3mr(numgrp=1) /
+ IGMPv3gr(rtype=3, maddr="224.1.1.1", srcaddrs=["10.1.1.1"]))
+
+ self.send(self.pg0, p_join)
+
+ # search for the corresponding state created in VPP
+ dump = self.vapi.igmp_dump()
+ self.assertEqual(len(dump), 1)
+ self.assertEqual(dump[0].sw_if_index, self.pg0.sw_if_index)
+ self.assertEqual(dump[0].gaddr,
+ socket.inet_pton(socket.AF_INET,
+ "224.1.1.1"))
+ self.assertEqual(dump[0].saddr,
+ socket.inet_pton(socket.AF_INET,
+ "10.1.1.1"))
+
+ # VPP sends a notification that a new group has been joined
+ ev = self.vapi.wait_for_event(2, "igmp_event")
+
+ self.assertEqual(ev.saddr,
+ socket.inet_pton(socket.AF_INET,
+ "10.1.1.1"))
+ self.assertEqual(ev.gaddr,
+ socket.inet_pton(socket.AF_INET,
+ "224.1.1.1"))
+ self.assertEqual(ev.is_join, 1)
+
+ # host sends IGMP leave
+ p_leave = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
+ IP(src=self.pg0.remote_ip4, dst='224.0.0.22', tos=0xc0) /
+ IGMPv3() /
+ IGMPv3mr(numgrp=1) /
+ IGMPv3gr(rtype=4, maddr="224.1.1.1", srcaddrs=["10.1.1.1"]))
+
+ self.send(self.pg0, p_leave)
+
+ # VPP sends a notification that a new group has been left
+ ev = self.vapi.wait_for_event(2, "igmp_event")
+
+ self.assertEqual(ev.saddr,
+ socket.inet_pton(socket.AF_INET,
+ "10.1.1.1"))
+ self.assertEqual(ev.gaddr,
+ socket.inet_pton(socket.AF_INET,
+ "224.1.1.1"))
+ self.assertEqual(ev.is_join, 0)
+
+ # state gone
+ dump = self.vapi.igmp_dump()
+ self.assertFalse(dump)
+
+ # resend the join
+ self.send(self.pg0, p_join)
+ dump = self.vapi.igmp_dump()
+ self.assertEqual(len(dump), 1)
+ self.assertEqual(dump[0].sw_if_index, self.pg0.sw_if_index)
+ self.assertEqual(dump[0].gaddr,
+ socket.inet_pton(socket.AF_INET,
+ "224.1.1.1"))
+ self.assertEqual(dump[0].saddr,
+ socket.inet_pton(socket.AF_INET,
+ "10.1.1.1"))
+
+ # IGMP block
+ p_block = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
+ IP(src=self.pg0.remote_ip4, dst='224.0.0.22', tos=0xc0) /
+ IGMPv3() /
+ IGMPv3mr(numgrp=1) /
+ IGMPv3gr(rtype=6, maddr="224.1.1.1", srcaddrs=["10.1.1.1"]))
+
+ self.send(self.pg0, p_block)
+
+ dump = self.vapi.igmp_dump()
+ self.assertFalse(dump)
+
+ def verify_general_query(self, p):
+ ip = p[IP]
+ self.assertEqual(ip.dst, "224.0.0.1")
+ self.assertEqual(ip.proto, 2)
+ igmp = p[IGMPv3]
+ self.assertEqual(igmp.type, 0x11)
+ self.assertEqual(igmp.gaddr, "0.0.0.0")
+
+ @unittest.skipUnless(checkIGMPv3(), "missing scapy igmpv3 implementation")
+ def test_igmp_send_query(self):
+ """ IGMP send General Query """
+
+ #
+ # VPP acts as a router.
+ # Send a membership report so VPP builds state
+ #
+ p_mr = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
+ IP(src=self.pg0.remote_ip4, dst='224.0.0.22') /
+ IGMPv3() /
+ IGMPv3mr(numgrp=1) /
+ IGMPv3gr(rtype=3, maddr="224.1.1.1", srcaddrs=["10.1.1.1"]))
+
+ self.send(self.pg0, p_mr)
+ self.logger.info(self.vapi.cli("sh igmp config"))
+
+ #
+ # wait for VPP to send out the General Query
+ #
+ capture = self.pg0.get_capture(1, timeout=61)
+
+ self.verify_general_query(capture[0])
+
+ #
+ # the state will expire in 10 more seconds
+ #
+ self.sleep(10)
+ self.assertFalse(self.vapi.igmp_dump())
+
+ @unittest.skipUnless(checkIGMPv3(), "missing scapy igmpv3 implementation")
+ def test_igmp_src_exp(self):
+ """ IGMP per source timer """
+
+ #
+ # VPP Acts as a router
+ #
+
+ # Host join for (10.1.1.1,224.1.1.1)
+ p_mr1 = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
+ IP(src=self.pg0.remote_ip4, dst='224.0.0.22') /
+ IGMPv3() /
+ IGMPv3mr(numgrp=1) /
+ IGMPv3gr(rtype=3, maddr="224.1.1.1", srcaddrs=["10.1.1.1"]))
+
+ self.send(self.pg0, p_mr1)
+
+ # VPP (router) sends General Query
+ capture = self.pg0.get_capture(1, timeout=61)
+
+ self.verify_general_query(capture[0])
+
+ # host join for same G and another S: (10.1.1.2,224.1.1.1)
+ # therefore leaving (10.1.1.1,224.1.1.1)
+ p_mr2 = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
+ IP(src=self.pg0.remote_ip4, dst='224.0.0.22') /
+ IGMPv3() /
+ IGMPv3mr(numgrp=1) /
+ IGMPv3gr(rtype=2, maddr="224.1.1.1", srcaddrs=["10.1.1.2"]))
+
+ self.send(self.pg0, p_mr2)
+
+ # wait for VPP to send general query
+ capture = self.pg0.get_capture(1, timeout=61)
+ self.verify_general_query(capture[0])
+
+ # host leaves (10.1.1.2,224.1.1.1)
+ p_l = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
+ IP(src=self.pg0.remote_ip4, dst='224.0.0.22') /
+ IGMPv3() /
+ IGMPv3mr(numgrp=1) /
+ IGMPv3gr(rtype=2, maddr="224.1.1.1", srcaddrs=["10.1.1.2"]))
+
+ self.send(self.pg0, p_l)
+
+ # FIXME BUG
+ p_l = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
+ IP(src=self.pg0.remote_ip4, dst='224.0.0.22') /
+ IGMPv3() /
+ IGMPv3mr(numgrp=1) /
+ IGMPv3gr(rtype=2, maddr="224.1.1.1", srcaddrs=["10.1.1.1"]))
+ self.send(self.pg0, p_l)
+
+ #
+ # host has left all groups, no state left.
+ #
+ self.sleep(10)
+ self.logger.error(self.vapi.cli("sh igmp config"))
+ self.assertFalse(self.vapi.igmp_dump())
+
+ @unittest.skipUnless(checkIGMPv3(), "missing scapy igmpv3 implementation")
+ def test_igmp_query_resp(self):
+ """ IGMP General Query response """
+
+ #
+ # VPP acting as a host.
+ # Add a listener in VPP for (10.1.1.1,244.1.1.1)
+ #
+ self.config_list.append(
+ VppIgmpConfig(
+ self, self.pg0.sw_if_index, IgmpSG(
+ socket.inet_pton(
+ socket.AF_INET, "10.1.1.1"), socket.inet_pton(
+ socket.AF_INET, "224.1.1.1"))))
+ self.config_list[0].add_vpp_config()
+
+ # verify state exists
+ self.assertTrue(self.vapi.igmp_dump(self.pg0.sw_if_index))
+
+ #
+ # Send a general query (from a router)
+ #
+ p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
+ IP(src=self.pg0.remote_ip4, dst='224.0.0.1', tos=0xc0) /
+ IGMPv3(type=0x11, mrcode=100) /
+ IGMPv3mq(gaddr="0.0.0.0"))
+
+ self.send(self.pg0, p)
+
+ #
+ # expect VPP to respond with a membership report for the
+ # (10.1.1.1, 224.1.1.1) state
+ #
+ capture = self.pg0.get_capture(1, timeout=10)
+
+ self.assertEqual(capture[0][IGMPv3].type, 0x22)
+ self.assertEqual(capture[0][IGMPv3mr].numgrp, 1)
+ self.assertEqual(capture[0][IGMPv3gr].rtype, 1)
+ self.assertEqual(capture[0][IGMPv3gr].numsrc, 1)
+ self.assertEqual(capture[0][IGMPv3gr].maddr, "224.1.1.1")
+ self.assertEqual(len(capture[0][IGMPv3gr].srcaddrs), 1)
+ self.assertEqual(capture[0][IGMPv3gr].srcaddrs[0], "10.1.1.1")
+
+ @unittest.skipUnless(checkIGMPv3(), "missing scapy igmpv3 implementation")
+ def test_igmp_listen(self):
+ """ IGMP listen (S,G)s """
+
+ #
+ # VPP acts as a host
+ # Add IGMP group state to multiple interfaces and validate its
+ # presence
+ #
+ for pg in self.pg_interfaces:
+ self.sg_list.append(IgmpSG(socket.inet_pton(
+ socket.AF_INET, "10.1.1.%d" % pg._sw_if_index),
+ socket.inet_pton(socket.AF_INET, "224.1.1.1")))
+
+ for pg in self.pg_interfaces:
+ self.config_list.append(
+ VppIgmpConfig(
+ self,
+ pg._sw_if_index,
+ self.sg_list))
+ self.config_list[-1].add_vpp_config()
+
+ for config in self.config_list:
+ dump = self.vapi.igmp_dump(config.sw_if_index)
+ self.assertTrue(dump)
+ self.assertEqual(len(dump), len(config.sg_list))
+ for idx, e in enumerate(dump):
+ self.assertEqual(e.sw_if_index, config.sw_if_index)
+ self.assertEqual(e.saddr, config.sg_list[idx].saddr)
+ self.assertEqual(e.gaddr, config.sg_list[idx].gaddr)
+
+ for config in self.config_list:
+ config.remove_vpp_config()
+
+ dump = self.vapi.igmp_dump()
+ self.assertFalse(dump)
+
+
+if __name__ == '__main__':
+ unittest.main(testRunner=VppTestRunner)
Code Review / vpp.git / blobdiff