diff options
Diffstat (limited to 'vpp/test/template_bd.py')
| -rw-r--r-- | vpp/test/template_bd.py | 174 |
1 files changed, 174 insertions, 0 deletions
diff --git a/vpp/test/template_bd.py b/vpp/test/template_bd.py new file mode 100644 index 00000000..e240a280 --- /dev/null +++ b/vpp/test/template_bd.py @@ -0,0 +1,174 @@ +#!/usr/bin/env python + +from abc import abstractmethod, ABCMeta + +from scapy.layers.l2 import Ether, Raw +from scapy.layers.inet import IP, UDP + + +class BridgeDomain(object): + """ Bridge domain abstraction """ + __metaclass__ = ABCMeta + + @property + 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_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 encap_mcast(self, pkt, src_ip, src_mac, vni): + """ Encapsulate mcast packet """ + pass + + @abstractmethod + def encapsulate(self, pkt, vni): + """ Encapsulate packet """ + pass + + @abstractmethod + def decapsulate(self, pkt): + """ Decapsulate packet """ + pass + + @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_request, + self.single_tunnel_bd) + + self.pg0.add_stream([encapsulated_pkt, ]) + + self.pg1.enable_capture() + + 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))) + pkt = out[0] + 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_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))) + 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() + + # Get packet from each tunnel and assert it's corectly encapsulated. + out = self.pg0.get_capture() + self.assertEqual(len(out), 10, + 'Invalid number of packets on ' + 'output: {}'.format(len(out))) + 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 corectly encapsulated. + out = self.pg0.get_capture() + self.assertEqual(len(out), 1, + 'Invalid number of packets on ' + 'output: {}'.format(len(out))) + pkt = out[0] + self.check_encapsulation(pkt, self.mcast_flood_bd, True) + + payload = self.decapsulate(pkt) + self.assert_eq_pkts(payload, self.frame_reply) + + @staticmethod + def ipn_to_ip(ipn): + return '.'.join(str(i) for i in bytearray(ipn)) + + 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, self.ipn_to_ip(ip), mac, + self.mcast_flood_bd) + for ip in self.ip4_range(self.pg0.remote_ip4n, + ip_range_start, ip_range_end)] + self.pg0.add_stream(mcast_stream) + self.pg2.enable_capture() + self.pg_start() + out = self.pg2.get_capture() + self.assertEqual(len(out), 10, + 'Invalid number of packets on ' + 'output: {}'.format(len(out))) + for pkt in out: + self.assert_eq_pkts(pkt, self.frame_request) |