summaryrefslogtreecommitdiffstats
path: root/test/template_bd.py
blob: e240a2807c78550e60bc497605b6bb351d467f6a (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
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)