3 from framework import VppTestCase
4 from ipaddress import IPv4Address
5 from ipaddress import IPv6Address
6 from scapy.contrib.gtp import *
7 from scapy.all import *
10 class TestSRv6EndMGTP4E(VppTestCase):
11 """ SRv6 End.M.GTP4.E (SRv6 -> GTP-U) """
15 super(TestSRv6EndMGTP4E, cls).setUpClass()
17 cls.create_pg_interfaces(range(2))
18 cls.pg_if_i = cls.pg_interfaces[0]
19 cls.pg_if_o = cls.pg_interfaces[1]
21 cls.pg_if_i.config_ip6()
22 cls.pg_if_o.config_ip4()
24 cls.ip4_dst = cls.pg_if_o.remote_ip4
25 # cls.ip4_src = cls.pg_if_o.local_ip4
26 cls.ip4_src = "192.168.192.10"
28 for pg_if in cls.pg_interfaces:
33 super(TestSRv6EndMGTP4E, cls).tearDownClass()
36 def create_packets(self, inner):
38 ip4_dst = IPv4Address(str(self.ip4_dst))
39 # 32bit prefix + 32bit IPv4 DA + 8bit + 32bit TEID + 24bit
40 dst = b'\xaa' * 4 + ip4_dst.packed + \
41 b'\x11' + b'\xbb' * 4 + b'\x11' * 3
42 ip6_dst = IPv6Address(dst)
44 ip4_src = IPv4Address(str(self.ip4_src))
45 # 64bit prefix + 32bit IPv4 SA + 16 bit port + 16bit
46 src = b'\xcc' * 8 + ip4_src.packed + \
47 b'\xdd' * 2 + b'\x11' * 2
48 ip6_src = IPv6Address(src)
50 self.logger.info("ip4 dst: {}".format(ip4_dst))
51 self.logger.info("ip4 src: {}".format(ip4_src))
52 self.logger.info("ip6 dst (remote srgw): {}".format(ip6_dst))
53 self.logger.info("ip6 src (local srgw): {}".format(ip6_src))
58 IPv6(dst=str(ip6_dst), src=str(ip6_src)) /
59 IPv6ExtHdrSegmentRouting() /
61 UDP(sport=1000, dport=23))
62 self.logger.info(pkt.show2(dump=True))
67 def test_srv6_end(self):
69 pkts = self.create_packets([("A::1", "B::1"), ("C::1", "D::1")])
72 "sr localsid address {} behavior end.m.gtp4.e v4src_position 64"
73 .format(pkts[0]['IPv6'].dst))
74 self.logger.info(self.vapi.cli("show sr localsids"))
76 self.vapi.cli("clear errors")
78 self.pg0.add_stream(pkts)
79 self.pg_enable_capture(self.pg_interfaces)
82 self.logger.info(self.vapi.cli("show errors"))
83 self.logger.info(self.vapi.cli("show int address"))
85 capture = self.pg1.get_capture(len(pkts))
88 self.logger.info(pkt.show2(dump=True))
89 self.assertEqual(pkt[IP].dst, self.ip4_dst)
90 self.assertEqual(pkt[IP].src, self.ip4_src)
91 self.assertEqual(pkt[GTP_U_Header].teid, 0xbbbbbbbb)
94 class TestSRv6TMTmap(VppTestCase):
95 """ SRv6 T.M.Tmap (GTP-U -> SRv6) """
99 super(TestSRv6TMTmap, cls).setUpClass()
101 cls.create_pg_interfaces(range(2))
102 cls.pg_if_i = cls.pg_interfaces[0]
103 cls.pg_if_o = cls.pg_interfaces[1]
105 cls.pg_if_i.config_ip4()
106 cls.pg_if_o.config_ip6()
108 for pg_if in cls.pg_interfaces:
113 super(TestSRv6TMTmap, cls).tearDownClass()
117 class TestSRv6EndMGTP6E(VppTestCase):
118 """ SRv6 End.M.GTP6.E """
122 super(TestSRv6EndMGTP6E, cls).setUpClass()
124 cls.create_pg_interfaces(range(2))
125 cls.pg_if_i = cls.pg_interfaces[0]
126 cls.pg_if_o = cls.pg_interfaces[1]
128 cls.pg_if_i.config_ip4()
129 cls.pg_if_o.config_ip6()
131 for pg_if in cls.pg_interfaces:
136 super(TestSRv6EndMGTP6E, cls).tearDownClass()
140 class TestSRv6EndMGTP6D(VppTestCase):
141 """ SRv6 End.M.GTP6.D """
145 super(TestSRv6EndMGTP6D, cls).setUpClass()
147 cls.create_pg_interfaces(range(2))
148 cls.pg_if_i = cls.pg_interfaces[0]
149 cls.pg_if_o = cls.pg_interfaces[1]
151 cls.pg_if_i.config_ip4()
152 cls.pg_if_o.config_ip6()
154 for pg_if in cls.pg_interfaces:
159 super(TestSRv6EndMGTP6D, cls).tearDownClass()