| #!/usr/bin/env python3 |
| import unittest |
| from framework import tag_fixme_vpp_workers |
| from framework import VppTestCase, VppTestRunner |
| |
| from vpp_udp_encap import find_udp_encap, VppUdpEncap |
| from vpp_udp_decap import VppUdpDecap |
| from vpp_ip_route import ( |
| VppIpRoute, |
| VppRoutePath, |
| VppIpTable, |
| VppMplsLabel, |
| VppMplsTable, |
| VppMplsRoute, |
| FibPathType, |
| FibPathProto, |
| ) |
| from vpp_neighbor import VppNeighbor |
| from vpp_papi import VppEnum |
| |
| from scapy.packet import Raw |
| from scapy.layers.l2 import Ether |
| from scapy.layers.inet import IP, UDP, ICMP |
| from scapy.layers.inet6 import IPv6 |
| from scapy.contrib.mpls import MPLS |
| |
| NUM_PKTS = 67 |
| ENTROPY_PORT_MIN = 0x3 << 14 |
| ENTROPY_PORT_MAX = 0xFFFF |
| |
| |
| @tag_fixme_vpp_workers |
| class TestUdpEncap(VppTestCase): |
| """UDP Encap Test Case""" |
| |
| @classmethod |
| def setUpClass(cls): |
| super(TestUdpEncap, cls).setUpClass() |
| |
| @classmethod |
| def tearDownClass(cls): |
| super(TestUdpEncap, cls).tearDownClass() |
| |
| def setUp(self): |
| super(TestUdpEncap, self).setUp() |
| |
| # create 2 pg interfaces |
| self.create_pg_interfaces(range(4)) |
| |
| # setup interfaces |
| # assign them different tables. |
| table_id = 0 |
| self.tables = [] |
| |
| for i in self.pg_interfaces: |
| i.admin_up() |
| |
| if table_id != 0: |
| tbl = VppIpTable(self, table_id) |
| tbl.add_vpp_config() |
| self.tables.append(tbl) |
| tbl = VppIpTable(self, table_id, is_ip6=1) |
| tbl.add_vpp_config() |
| self.tables.append(tbl) |
| |
| i.set_table_ip4(table_id) |
| i.set_table_ip6(table_id) |
| i.config_ip4() |
| i.resolve_arp() |
| i.config_ip6() |
| i.resolve_ndp() |
| table_id += 1 |
| |
| def tearDown(self): |
| for i in self.pg_interfaces: |
| i.unconfig_ip4() |
| i.unconfig_ip6() |
| i.set_table_ip4(0) |
| i.set_table_ip6(0) |
| i.admin_down() |
| super(TestUdpEncap, self).tearDown() |
| |
| def validate_outer4(self, rx, encap_obj, sport_entropy=False): |
| self.assertEqual(rx[IP].src, encap_obj.src_ip_s) |
| self.assertEqual(rx[IP].dst, encap_obj.dst_ip_s) |
| if sport_entropy: |
| self.assert_in_range(rx[UDP].sport, ENTROPY_PORT_MIN, ENTROPY_PORT_MAX) |
| else: |
| self.assertEqual(rx[UDP].sport, encap_obj.src_port) |
| self.assertEqual(rx[UDP].dport, encap_obj.dst_port) |
| |
| def validate_outer6(self, rx, encap_obj, sport_entropy=False): |
| self.assertEqual(rx[IPv6].src, encap_obj.src_ip_s) |
| self.assertEqual(rx[IPv6].dst, encap_obj.dst_ip_s) |
| if sport_entropy: |
| self.assert_in_range(rx[UDP].sport, ENTROPY_PORT_MIN, ENTROPY_PORT_MAX) |
| else: |
| self.assertEqual(rx[UDP].sport, encap_obj.src_port) |
| self.assertEqual(rx[UDP].dport, encap_obj.dst_port) |
| |
| def validate_inner4(self, rx, tx, ttl=None): |
| self.assertEqual(rx[IP].src, tx[IP].src) |
| self.assertEqual(rx[IP].dst, tx[IP].dst) |
| if ttl: |
| self.assertEqual(rx[IP].ttl, ttl) |
| else: |
| self.assertEqual(rx[IP].ttl, tx[IP].ttl) |
| |
| def validate_inner6(self, rx, tx, hlim=None): |
| self.assertEqual(rx.src, tx[IPv6].src) |
| self.assertEqual(rx.dst, tx[IPv6].dst) |
| if hlim: |
| self.assertEqual(rx.hlim, hlim) |
| else: |
| self.assertEqual(rx.hlim, tx[IPv6].hlim) |
| |
| def test_udp_encap(self): |
| """UDP Encap test""" |
| |
| # |
| # construct a UDP encap object through each of the peers |
| # v4 through the first two peers, v6 through the second. |
| # The last encap is v4 and is used to check the codepath |
| # where 2 different udp encap objects are processed at the |
| # same time |
| # |
| udp_encap_0 = VppUdpEncap( |
| self, self.pg0.local_ip4, self.pg0.remote_ip4, 330, 440 |
| ) |
| udp_encap_1 = VppUdpEncap( |
| self, self.pg1.local_ip4, self.pg1.remote_ip4, 331, 441, table_id=1 |
| ) |
| udp_encap_2 = VppUdpEncap( |
| self, self.pg2.local_ip6, self.pg2.remote_ip6, 332, 442, table_id=2 |
| ) |
| udp_encap_3 = VppUdpEncap( |
| self, self.pg3.local_ip6, self.pg3.remote_ip6, 333, 443, table_id=3 |
| ) |
| udp_encap_4 = VppUdpEncap( |
| self, self.pg0.local_ip4, self.pg0.remote_ip4, 334, 444 |
| ) |
| udp_encap_0.add_vpp_config() |
| udp_encap_1.add_vpp_config() |
| udp_encap_2.add_vpp_config() |
| udp_encap_3.add_vpp_config() |
| udp_encap_4.add_vpp_config() |
| |
| self.logger.info(self.vapi.cli("sh udp encap")) |
| |
| self.assertTrue(find_udp_encap(self, udp_encap_2)) |
| self.assertTrue(find_udp_encap(self, udp_encap_3)) |
| self.assertTrue(find_udp_encap(self, udp_encap_0)) |
| self.assertTrue(find_udp_encap(self, udp_encap_1)) |
| self.assertTrue(find_udp_encap(self, udp_encap_4)) |
| |
| # |
| # Routes via each UDP encap object - all combinations of v4 and v6. |
| # |
| route_4o4 = VppIpRoute( |
| self, |
| "1.1.0.1", |
| 24, |
| [ |
| VppRoutePath( |
| "0.0.0.0", |
| 0xFFFFFFFF, |
| type=FibPathType.FIB_PATH_TYPE_UDP_ENCAP, |
| next_hop_id=udp_encap_0.id, |
| proto=FibPathProto.FIB_PATH_NH_PROTO_IP4, |
| ) |
| ], |
| table_id=1, |
| ) |
| # specific route to match encap4, to test encap of 2 packets using 2 |
| # different encap |
| route_4o4_2 = VppIpRoute( |
| self, |
| "1.1.0.2", |
| 32, |
| [ |
| VppRoutePath( |
| "0.0.0.0", |
| 0xFFFFFFFF, |
| type=FibPathType.FIB_PATH_TYPE_UDP_ENCAP, |
| next_hop_id=udp_encap_4.id, |
| proto=FibPathProto.FIB_PATH_NH_PROTO_IP4, |
| ) |
| ], |
| table_id=1, |
| ) |
| route_4o6 = VppIpRoute( |
| self, |
| "1.1.2.1", |
| 32, |
| [ |
| VppRoutePath( |
| "0.0.0.0", |
| 0xFFFFFFFF, |
| type=FibPathType.FIB_PATH_TYPE_UDP_ENCAP, |
| next_hop_id=udp_encap_2.id, |
| proto=FibPathProto.FIB_PATH_NH_PROTO_IP4, |
| ) |
| ], |
| ) |
| route_6o4 = VppIpRoute( |
| self, |
| "2001::1", |
| 128, |
| [ |
| VppRoutePath( |
| "0.0.0.0", |
| 0xFFFFFFFF, |
| type=FibPathType.FIB_PATH_TYPE_UDP_ENCAP, |
| next_hop_id=udp_encap_1.id, |
| proto=FibPathProto.FIB_PATH_NH_PROTO_IP6, |
| ) |
| ], |
| ) |
| route_6o6 = VppIpRoute( |
| self, |
| "2001::3", |
| 128, |
| [ |
| VppRoutePath( |
| "0.0.0.0", |
| 0xFFFFFFFF, |
| type=FibPathType.FIB_PATH_TYPE_UDP_ENCAP, |
| next_hop_id=udp_encap_3.id, |
| proto=FibPathProto.FIB_PATH_NH_PROTO_IP6, |
| ) |
| ], |
| ) |
| route_4o6.add_vpp_config() |
| route_6o6.add_vpp_config() |
| route_6o4.add_vpp_config() |
| route_4o4.add_vpp_config() |
| route_4o4_2.add_vpp_config() |
| |
| # |
| # 4o4 encap |
| # we add a single packet matching the last encap at the beginning of |
| # the packet vector so that we encap 2 packets with different udp |
| # encap object at the same time |
| # |
| p_4o4 = ( |
| Ether(src=self.pg1.remote_mac, dst=self.pg1.local_mac) |
| / IP(src="2.2.2.2", dst="1.1.0.1") |
| / UDP(sport=1234, dport=1234) |
| / Raw(b"\xa5" * 100) |
| ) |
| p_4o4_2 = ( |
| Ether(src=self.pg1.remote_mac, dst=self.pg1.local_mac) |
| / IP(src="2.2.2.2", dst="1.1.0.2") |
| / UDP(sport=1234, dport=1234) |
| / Raw(b"\xa5" * 100) |
| ) |
| rx = self.send_and_expect( |
| self.pg1, p_4o4_2 * 1 + p_4o4 * (NUM_PKTS - 1), self.pg0 |
| ) |
| # checking encap4 magic packet |
| p = rx.pop(0) |
| self.validate_outer4(p, udp_encap_4) |
| p = IP(p["UDP"].payload.load) |
| self.validate_inner4(p, p_4o4_2) |
| self.assertEqual(udp_encap_4.get_stats()["packets"], 1) |
| # checking remaining packets for encap0 |
| for p in rx: |
| self.validate_outer4(p, udp_encap_0) |
| p = IP(p["UDP"].payload.load) |
| self.validate_inner4(p, p_4o4) |
| self.assertEqual(udp_encap_0.get_stats()["packets"], NUM_PKTS - 1) |
| |
| # |
| # 4o6 encap |
| # |
| p_4o6 = ( |
| Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) |
| / IP(src="2.2.2.2", dst="1.1.2.1") |
| / UDP(sport=1234, dport=1234) |
| / Raw(b"\xa5" * 100) |
| ) |
| rx = self.send_and_expect(self.pg0, p_4o6 * NUM_PKTS, self.pg2) |
| for p in rx: |
| self.validate_outer6(p, udp_encap_2) |
| p = IP(p["UDP"].payload.load) |
| self.validate_inner4(p, p_4o6) |
| self.assertEqual(udp_encap_2.get_stats()["packets"], NUM_PKTS) |
| |
| # |
| # 6o4 encap |
| # |
| p_6o4 = ( |
| Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) |
| / IPv6(src="2001::100", dst="2001::1") |
| / UDP(sport=1234, dport=1234) |
| / Raw(b"\xa5" * 100) |
| ) |
| rx = self.send_and_expect(self.pg0, p_6o4 * NUM_PKTS, self.pg1) |
| for p in rx: |
| self.validate_outer4(p, udp_encap_1) |
| p = IPv6(p["UDP"].payload.load) |
| self.validate_inner6(p, p_6o4) |
| self.assertEqual(udp_encap_1.get_stats()["packets"], NUM_PKTS) |
| |
| # |
| # 6o6 encap |
| # |
| p_6o6 = ( |
| Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) |
| / IPv6(src="2001::100", dst="2001::3") |
| / UDP(sport=1234, dport=1234) |
| / Raw(b"\xa5" * 100) |
| ) |
| rx = self.send_and_expect(self.pg0, p_6o6 * NUM_PKTS, self.pg3) |
| for p in rx: |
| self.validate_outer6(p, udp_encap_3) |
| p = IPv6(p["UDP"].payload.load) |
| self.validate_inner6(p, p_6o6) |
| self.assertEqual(udp_encap_3.get_stats()["packets"], NUM_PKTS) |
| |
| # |
| # A route with an output label |
| # the TTL of the inner packet is decremented on LSP ingress |
| # |
| route_4oMPLSo4 = VppIpRoute( |
| self, |
| "1.1.2.22", |
| 32, |
| [ |
| VppRoutePath( |
| "0.0.0.0", |
| 0xFFFFFFFF, |
| type=FibPathType.FIB_PATH_TYPE_UDP_ENCAP, |
| next_hop_id=1, |
| labels=[VppMplsLabel(66)], |
| ) |
| ], |
| ) |
| route_4oMPLSo4.add_vpp_config() |
| |
| p_4omo4 = ( |
| Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) |
| / IP(src="2.2.2.2", dst="1.1.2.22") |
| / UDP(sport=1234, dport=1234) |
| / Raw(b"\xa5" * 100) |
| ) |
| rx = self.send_and_expect(self.pg0, p_4omo4 * NUM_PKTS, self.pg1) |
| for p in rx: |
| self.validate_outer4(p, udp_encap_1) |
| p = MPLS(p["UDP"].payload.load) |
| self.validate_inner4(p, p_4omo4, ttl=63) |
| self.assertEqual(udp_encap_1.get_stats()["packets"], 2 * NUM_PKTS) |
| |
| def test_udp_encap_entropy(self): |
| """UDP Encap src port entropy test""" |
| |
| # |
| # construct a UDP encap object through each of the peers |
| # v4 through the first two peers, v6 through the second. |
| # use zero source port to enable entropy per rfc7510. |
| # |
| udp_encap_0 = VppUdpEncap(self, self.pg0.local_ip4, self.pg0.remote_ip4, 0, 440) |
| udp_encap_1 = VppUdpEncap( |
| self, self.pg1.local_ip4, self.pg1.remote_ip4, 0, 441, table_id=1 |
| ) |
| udp_encap_2 = VppUdpEncap( |
| self, self.pg2.local_ip6, self.pg2.remote_ip6, 0, 442, table_id=2 |
| ) |
| udp_encap_3 = VppUdpEncap( |
| self, self.pg3.local_ip6, self.pg3.remote_ip6, 0, 443, table_id=3 |
| ) |
| udp_encap_0.add_vpp_config() |
| udp_encap_1.add_vpp_config() |
| udp_encap_2.add_vpp_config() |
| udp_encap_3.add_vpp_config() |
| |
| self.logger.info(self.vapi.cli("sh udp encap")) |
| |
| self.assertTrue(find_udp_encap(self, udp_encap_0)) |
| self.assertTrue(find_udp_encap(self, udp_encap_1)) |
| self.assertTrue(find_udp_encap(self, udp_encap_2)) |
| self.assertTrue(find_udp_encap(self, udp_encap_3)) |
| |
| # |
| # Routes via each UDP encap object - all combinations of v4 and v6. |
| # |
| route_4o4 = VppIpRoute( |
| self, |
| "1.1.0.1", |
| 24, |
| [ |
| VppRoutePath( |
| "0.0.0.0", |
| 0xFFFFFFFF, |
| type=FibPathType.FIB_PATH_TYPE_UDP_ENCAP, |
| next_hop_id=udp_encap_0.id, |
| proto=FibPathProto.FIB_PATH_NH_PROTO_IP4, |
| ) |
| ], |
| table_id=1, |
| ) |
| route_4o6 = VppIpRoute( |
| self, |
| "1.1.2.1", |
| 32, |
| [ |
| VppRoutePath( |
| "0.0.0.0", |
| 0xFFFFFFFF, |
| type=FibPathType.FIB_PATH_TYPE_UDP_ENCAP, |
| next_hop_id=udp_encap_2.id, |
| proto=FibPathProto.FIB_PATH_NH_PROTO_IP4, |
| ) |
| ], |
| ) |
| route_6o4 = VppIpRoute( |
| self, |
| "2001::1", |
| 128, |
| [ |
| VppRoutePath( |
| "0.0.0.0", |
| 0xFFFFFFFF, |
| type=FibPathType.FIB_PATH_TYPE_UDP_ENCAP, |
| next_hop_id=udp_encap_1.id, |
| proto=FibPathProto.FIB_PATH_NH_PROTO_IP6, |
| ) |
| ], |
| ) |
| route_6o6 = VppIpRoute( |
| self, |
| "2001::3", |
| 128, |
| [ |
| VppRoutePath( |
| "0.0.0.0", |
| 0xFFFFFFFF, |
| type=FibPathType.FIB_PATH_TYPE_UDP_ENCAP, |
| next_hop_id=udp_encap_3.id, |
| proto=FibPathProto.FIB_PATH_NH_PROTO_IP6, |
| ) |
| ], |
| ) |
| route_4o4.add_vpp_config() |
| route_4o6.add_vpp_config() |
| route_6o6.add_vpp_config() |
| route_6o4.add_vpp_config() |
| |
| # |
| # 4o4 encap |
| # |
| p_4o4 = [] |
| for i in range(NUM_PKTS): |
| p_4o4.append( |
| Ether(src=self.pg1.remote_mac, dst=self.pg1.local_mac) |
| / IP(src="2.2.2.2", dst="1.1.0.1") |
| / UDP(sport=1234 + i, dport=1234) |
| / Raw(b"\xa5" * 100) |
| ) |
| rx = self.send_and_expect(self.pg1, p_4o4, self.pg0) |
| sports = set() |
| for i, p in enumerate(rx): |
| self.validate_outer4(p, udp_encap_0, True) |
| sports.add(p["UDP"].sport) |
| p = IP(p["UDP"].payload.load) |
| self.validate_inner4(p, p_4o4[i]) |
| self.assertEqual(udp_encap_0.get_stats()["packets"], NUM_PKTS) |
| self.assertGreater( |
| len(sports), 1, "source port {} is not an entropy value".format(sports) |
| ) |
| |
| # |
| # 4o6 encap |
| # |
| p_4o6 = [] |
| for i in range(NUM_PKTS): |
| p_4o6.append( |
| Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) |
| / IP(src="2.2.2.2", dst="1.1.2.1") |
| / UDP(sport=1234 + i, dport=1234) |
| / Raw(b"\xa5" * 100) |
| ) |
| rx = self.send_and_expect(self.pg0, p_4o6, self.pg2) |
| sports = set() |
| for p in rx: |
| self.validate_outer6(p, udp_encap_2, True) |
| sports.add(p["UDP"].sport) |
| p = IP(p["UDP"].payload.load) |
| self.validate_inner4(p, p_4o6[i]) |
| self.assertEqual(udp_encap_2.get_stats()["packets"], NUM_PKTS) |
| self.assertGreater( |
| len(sports), 1, "source port {} is not an entropy value".format(sports) |
| ) |
| |
| # |
| # 6o4 encap |
| # |
| p_6o4 = [] |
| for i in range(NUM_PKTS): |
| p_6o4.append( |
| Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) |
| / IPv6(src="2001::100", dst="2001::1") |
| / UDP(sport=1234 + i, dport=1234) |
| / Raw(b"\xa5" * 100) |
| ) |
| rx = self.send_and_expect(self.pg0, p_6o4, self.pg1) |
| sports = set() |
| for p in rx: |
| self.validate_outer4(p, udp_encap_1, True) |
| sports.add(p["UDP"].sport) |
| p = IPv6(p["UDP"].payload.load) |
| self.validate_inner6(p, p_6o4[i]) |
| self.assertEqual(udp_encap_1.get_stats()["packets"], NUM_PKTS) |
| self.assertGreater( |
| len(sports), 1, "source port {} is not an entropy value".format(sports) |
| ) |
| |
| # |
| # 6o6 encap |
| # |
| p_6o6 = [] |
| for i in range(NUM_PKTS): |
| p_6o6.append( |
| Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) |
| / IPv6(src="2001::100", dst="2001::3") |
| / UDP(sport=1234 + i, dport=1234) |
| / Raw(b"\xa5" * 100) |
| ) |
| rx = self.send_and_expect(self.pg0, p_6o6, self.pg3) |
| sports = set() |
| for p in rx: |
| self.validate_outer6(p, udp_encap_3, True) |
| sports.add(p["UDP"].sport) |
| p = IPv6(p["UDP"].payload.load) |
| self.validate_inner6(p, p_6o6[i]) |
| self.assertEqual(udp_encap_3.get_stats()["packets"], NUM_PKTS) |
| self.assertGreater( |
| len(sports), 1, "source port {} is not an entropy value".format(sports) |
| ) |
| |
| def test_udp_decap(self): |
| """UDP Decap test""" |
| # |
| # construct a UDP decap object for each type of protocol |
| # |
| |
| # IPv4 |
| udp_api_proto = VppEnum.vl_api_udp_decap_next_proto_t |
| next_proto = udp_api_proto.UDP_API_DECAP_PROTO_IP4 |
| udp_decap_0 = VppUdpDecap(self, 1, 220, next_proto) |
| |
| # IPv6 |
| next_proto = udp_api_proto.UDP_API_DECAP_PROTO_IP6 |
| udp_decap_1 = VppUdpDecap(self, 0, 221, next_proto) |
| |
| # MPLS |
| next_proto = udp_api_proto.UDP_API_DECAP_PROTO_MPLS |
| udp_decap_2 = VppUdpDecap(self, 1, 222, next_proto) |
| |
| udp_decap_0.add_vpp_config() |
| udp_decap_1.add_vpp_config() |
| udp_decap_2.add_vpp_config() |
| |
| # |
| # Routes via the corresponding pg after the UDP decap |
| # |
| route_4 = VppIpRoute( |
| self, |
| "1.1.1.1", |
| 32, |
| [VppRoutePath("0.0.0.0", self.pg0.sw_if_index)], |
| table_id=0, |
| ) |
| |
| route_6 = VppIpRoute( |
| self, "2001::1", 128, [VppRoutePath("::", self.pg1.sw_if_index)], table_id=1 |
| ) |
| |
| route_mo4 = VppIpRoute( |
| self, |
| "3.3.3.3", |
| 32, |
| [VppRoutePath("0.0.0.0", self.pg2.sw_if_index)], |
| table_id=2, |
| ) |
| |
| route_4.add_vpp_config() |
| route_6.add_vpp_config() |
| route_mo4.add_vpp_config() |
| |
| # |
| # Adding neighbors to route the packets |
| # |
| n_4 = VppNeighbor(self, self.pg0.sw_if_index, "00:11:22:33:44:55", "1.1.1.1") |
| n_6 = VppNeighbor(self, self.pg1.sw_if_index, "11:22:33:44:55:66", "2001::1") |
| n_mo4 = VppNeighbor(self, self.pg2.sw_if_index, "22:33:44:55:66:77", "3.3.3.3") |
| |
| n_4.add_vpp_config() |
| n_6.add_vpp_config() |
| n_mo4.add_vpp_config() |
| |
| # |
| # MPLS decapsulation config |
| # |
| mpls_table = VppMplsTable(self, 0) |
| mpls_table.add_vpp_config() |
| mpls_route = VppMplsRoute( |
| self, |
| 77, |
| 1, |
| [ |
| VppRoutePath( |
| "0.0.0.0", |
| 0xFFFFFFFF, |
| nh_table_id=2, |
| proto=FibPathProto.FIB_PATH_NH_PROTO_IP4, |
| ) |
| ], |
| ) |
| mpls_route.add_vpp_config() |
| |
| # |
| # UDP over ipv4 decap |
| # |
| p_4 = ( |
| Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac) |
| / IP(src=self.pg0.remote_ip4, dst=self.pg0.local_ip4) |
| / UDP(sport=1111, dport=220) |
| / IP(src="2.2.2.2", dst="1.1.1.1") |
| / UDP(sport=1234, dport=4321) |
| / Raw(b"\xa5" * 100) |
| ) |
| |
| rx = self.send_and_expect(self.pg0, p_4 * NUM_PKTS, self.pg0) |
| p_4 = IP(p_4["UDP"].payload) |
| for p in rx: |
| p = IP(p["Ether"].payload) |
| self.validate_inner4(p, p_4, ttl=63) |
| |
| # |
| # UDP over ipv6 decap |
| # |
| p_6 = ( |
| Ether(src=self.pg1.remote_mac, dst=self.pg1.local_mac) |
| / IPv6(src=self.pg1.remote_ip6, dst=self.pg1.local_ip6) |
| / UDP(sport=2222, dport=221) |
| / IPv6(src="2001::100", dst="2001::1") |
| / UDP(sport=1234, dport=4321) |
| / Raw(b"\xa5" * 100) |
| ) |
| |
| rx = self.send_and_expect(self.pg1, p_6 * NUM_PKTS, self.pg1) |
| p_6 = IPv6(p_6["UDP"].payload) |
| p = IPv6(rx[0]["Ether"].payload) |
| for p in rx: |
| p = IPv6(p["Ether"].payload) |
| self.validate_inner6(p, p_6, hlim=63) |
| |
| # |
| # UDP over mpls decap |
| # |
| p_mo4 = ( |
| Ether(src=self.pg2.remote_mac, dst=self.pg2.local_mac) |
| / IP(src=self.pg2.remote_ip4, dst=self.pg2.local_ip4) |
| / UDP(sport=3333, dport=222) |
| / MPLS(label=77, ttl=1) |
| / IP(src="4.4.4.4", dst="3.3.3.3") |
| / UDP(sport=1234, dport=4321) |
| / Raw(b"\xa5" * 100) |
| ) |
| |
| self.pg2.enable_mpls() |
| rx = self.send_and_expect(self.pg2, p_mo4 * NUM_PKTS, self.pg2) |
| self.pg2.disable_mpls() |
| p_mo4 = IP(MPLS(p_mo4["UDP"].payload).payload) |
| for p in rx: |
| p = IP(p["Ether"].payload) |
| self.validate_inner4(p, p_mo4, ttl=63) |
| |
| |
| @tag_fixme_vpp_workers |
| class TestUDP(VppTestCase): |
| """UDP Test Case""" |
| |
| @classmethod |
| def setUpClass(cls): |
| super(TestUDP, cls).setUpClass() |
| |
| @classmethod |
| def tearDownClass(cls): |
| super(TestUDP, cls).tearDownClass() |
| |
| def setUp(self): |
| super(TestUDP, self).setUp() |
| self.vapi.session_enable_disable(is_enable=1) |
| self.create_loopback_interfaces(2) |
| |
| table_id = 0 |
| |
| for i in self.lo_interfaces: |
| i.admin_up() |
| |
| if table_id != 0: |
| tbl = VppIpTable(self, table_id) |
| tbl.add_vpp_config() |
| |
| i.set_table_ip4(table_id) |
| i.config_ip4() |
| table_id += 1 |
| |
| # Configure namespaces |
| self.vapi.app_namespace_add_del_v4( |
| namespace_id="0", sw_if_index=self.loop0.sw_if_index |
| ) |
| self.vapi.app_namespace_add_del_v4( |
| namespace_id="1", sw_if_index=self.loop1.sw_if_index |
| ) |
| |
| def tearDown(self): |
| for i in self.lo_interfaces: |
| i.unconfig_ip4() |
| i.set_table_ip4(0) |
| i.admin_down() |
| self.vapi.session_enable_disable(is_enable=0) |
| super(TestUDP, self).tearDown() |
| |
| def test_udp_transfer(self): |
| """UDP echo client/server transfer""" |
| |
| # Add inter-table routes |
| ip_t01 = VppIpRoute( |
| self, |
| self.loop1.local_ip4, |
| 32, |
| [VppRoutePath("0.0.0.0", 0xFFFFFFFF, nh_table_id=1)], |
| ) |
| ip_t10 = VppIpRoute( |
| self, |
| self.loop0.local_ip4, |
| 32, |
| [VppRoutePath("0.0.0.0", 0xFFFFFFFF, nh_table_id=0)], |
| table_id=1, |
| ) |
| ip_t01.add_vpp_config() |
| ip_t10.add_vpp_config() |
| |
| # Start builtin server and client |
| uri = "udp://" + self.loop0.local_ip4 + "/1234" |
| error = self.vapi.cli("test echo server appns 0 fifo-size 4k " + "uri " + uri) |
| if error: |
| self.logger.critical(error) |
| self.assertNotIn("failed", error) |
| |
| error = self.vapi.cli( |
| "test echo client mbytes 10 appns 1 " |
| + "fifo-size 4k " |
| + "syn-timeout 2 uri " |
| + uri |
| ) |
| if error: |
| self.logger.critical(error) |
| self.assertNotIn("failed", error) |
| |
| self.logger.debug(self.vapi.cli("show session verbose 2")) |
| |
| # Delete inter-table routes |
| ip_t01.remove_vpp_config() |
| ip_t10.remove_vpp_config() |
| |
| |
| if __name__ == "__main__": |
| unittest.main(testRunner=VppTestRunner) |