#!/usr/bin/env python
-from abc import abstractmethod, ABCMeta
+import abc
+import six
from scapy.layers.l2 import Ether, Raw
from scapy.layers.inet import IP, UDP
+from util import ip4_range
+
+@six.add_metaclass(abc.ABCMeta)
class BridgeDomain(object):
""" Bridge domain abstraction """
- __metaclass__ = ABCMeta
@property
- def frame_pg0_to_pg1(self):
- """ Ethernet frame sent from pg0 and expected to arrive at pg1 """
+ def frame_request(self):
+ """ Ethernet frame modeling a generic request """
return (Ether(src='00:00:00:00:00:01', dst='00:00:00:00:00:02') /
IP(src='1.2.3.4', dst='4.3.2.1') /
UDP(sport=10000, dport=20000) /
Raw('\xa5' * 100))
@property
- def frame_pg1_to_pg0(self):
- """ Ethernet frame sent from pg1 and expected to arrive at pg0 """
+ def frame_reply(self):
+ """ Ethernet frame modeling a generic reply """
return (Ether(src='00:00:00:00:00:02', dst='00:00:00:00:00:01') /
IP(src='4.3.2.1', dst='1.2.3.4') /
UDP(sport=20000, dport=10000) /
Raw('\xa5' * 100))
- @abstractmethod
- def encapsulate(self, pkt):
+ @abc.abstractmethod
+ def ip_range(self, start, end):
+ """ range of remote ip's """
+ pass
+
+ @abc.abstractmethod
+ def encap_mcast(self, pkt, src_ip, src_mac, vni):
+ """ Encapsulate mcast packet """
+ pass
+
+ @abc.abstractmethod
+ def encapsulate(self, pkt, vni):
""" Encapsulate packet """
pass
- @abstractmethod
+ @abc.abstractmethod
def decapsulate(self, pkt):
""" Decapsulate packet """
pass
- @abstractmethod
- def check_encapsulation(self, pkt):
+ @abc.abstractmethod
+ def check_encapsulation(self, pkt, vni, local_only=False):
""" Verify the encapsulation """
pass
+ def assert_eq_pkts(self, pkt1, pkt2):
+ """ Verify the Ether, IP, UDP, payload are equal in both
+ packets
+ """
+ self.assertEqual(pkt1[Ether].src, pkt2[Ether].src)
+ self.assertEqual(pkt1[Ether].dst, pkt2[Ether].dst)
+ self.assertEqual(pkt1[IP].src, pkt2[IP].src)
+ self.assertEqual(pkt1[IP].dst, pkt2[IP].dst)
+ self.assertEqual(pkt1[UDP].sport, pkt2[UDP].sport)
+ self.assertEqual(pkt1[UDP].dport, pkt2[UDP].dport)
+ self.assertEqual(pkt1[Raw], pkt2[Raw])
+
def test_decap(self):
""" Decapsulation test
Send encapsulated frames from pg0
Verify receipt of decapsulated frames on pg1
"""
- encapsulated_pkt = self.encapsulate(self.frame_pg0_to_pg1)
+ encapsulated_pkt = self.encapsulate(self.frame_request,
+ self.single_tunnel_bd)
self.pg0.add_stream([encapsulated_pkt, ])
self.pg_start()
- # Pick first received frame and check if it's the non-encapsulated frame
- out = self.pg1.get_capture()
- self.assertEqual(len(out), 1,
- 'Invalid number of packets on '
- 'output: {}'.format(len(out)))
+ # Pick first received frame and check if it's the non-encapsulated
+ # frame
+ out = self.pg1.get_capture(1)
pkt = out[0]
-
- # TODO: add error messages
- self.assertEqual(pkt[Ether].src, self.frame_pg0_to_pg1[Ether].src)
- self.assertEqual(pkt[Ether].dst, self.frame_pg0_to_pg1[Ether].dst)
- self.assertEqual(pkt[IP].src, self.frame_pg0_to_pg1[IP].src)
- self.assertEqual(pkt[IP].dst, self.frame_pg0_to_pg1[IP].dst)
- self.assertEqual(pkt[UDP].sport, self.frame_pg0_to_pg1[UDP].sport)
- self.assertEqual(pkt[UDP].dport, self.frame_pg0_to_pg1[UDP].dport)
- self.assertEqual(pkt[Raw], self.frame_pg0_to_pg1[Raw])
+ self.assert_eq_pkts(pkt, self.frame_request)
def test_encap(self):
""" Encapsulation test
Send frames from pg1
Verify receipt of encapsulated frames on pg0
"""
- self.pg1.add_stream([self.frame_pg1_to_pg0])
+ self.pg1.add_stream([self.frame_reply])
+
+ self.pg0.enable_capture()
+
+ self.pg_start()
+
+ # Pick first received frame and check if it's correctly encapsulated.
+ out = self.pg0.get_capture(1)
+ pkt = out[0]
+ self.check_encapsulation(pkt, self.single_tunnel_bd)
+
+ payload = self.decapsulate(pkt)
+ self.assert_eq_pkts(payload, self.frame_reply)
+
+ def test_ucast_flood(self):
+ """ Unicast flood test
+ Send frames from pg3
+ Verify receipt of encapsulated frames on pg0
+ """
+ self.pg3.add_stream([self.frame_reply])
self.pg0.enable_capture()
self.pg_start()
- # Pick first received frame and check if it's corectly encapsulated.
- out = self.pg0.get_capture()
- self.assertEqual(len(out), 1,
- 'Invalid number of packets on '
- 'output: {}'.format(len(out)))
+ # Get packet from each tunnel and assert it's correctly encapsulated.
+ out = self.pg0.get_capture(self.n_ucast_tunnels)
+ for pkt in out:
+ self.check_encapsulation(pkt, self.ucast_flood_bd, True)
+ payload = self.decapsulate(pkt)
+ self.assert_eq_pkts(payload, self.frame_reply)
+
+ def test_mcast_flood(self):
+ """ Multicast flood test
+ Send frames from pg2
+ Verify receipt of encapsulated frames on pg0
+ """
+ self.pg2.add_stream([self.frame_reply])
+
+ self.pg0.enable_capture()
+
+ self.pg_start()
+
+ # Pick first received frame and check if it's correctly encapsulated.
+ out = self.pg0.get_capture(1)
pkt = out[0]
- self.check_encapsulation(pkt)
+ self.check_encapsulation(pkt, self.mcast_flood_bd,
+ local_only=False, mcast_pkt=True)
payload = self.decapsulate(pkt)
- # TODO: add error messages
- self.assertEqual(payload[Ether].src, self.frame_pg1_to_pg0[Ether].src)
- self.assertEqual(payload[Ether].dst, self.frame_pg1_to_pg0[Ether].dst)
- self.assertEqual(payload[IP].src, self.frame_pg1_to_pg0[IP].src)
- self.assertEqual(payload[IP].dst, self.frame_pg1_to_pg0[IP].dst)
- self.assertEqual(payload[UDP].sport, self.frame_pg1_to_pg0[UDP].sport)
- self.assertEqual(payload[UDP].dport, self.frame_pg1_to_pg0[UDP].dport)
- self.assertEqual(payload[Raw], self.frame_pg1_to_pg0[Raw])
+ self.assert_eq_pkts(payload, self.frame_reply)
+
+ def test_mcast_rcv(self):
+ """ Multicast receive test
+ Send 20 encapsulated frames from pg0 only 10 match unicast tunnels
+ Verify receipt of 10 decap frames on pg2
+ """
+ mac = self.pg0.remote_mac
+ ip_range_start = 10
+ ip_range_end = 30
+ mcast_stream = [
+ self.encap_mcast(self.frame_request, ip, mac, self.mcast_flood_bd)
+ for ip in self.ip_range(ip_range_start, ip_range_end)]
+ self.pg0.add_stream(mcast_stream)
+ self.pg2.enable_capture()
+ self.pg_start()
+ out = self.pg2.get_capture(10)
+ for pkt in out:
+ self.assert_eq_pkts(pkt, self.frame_request)
Code Review / vpp.git / blobdiff