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, \
- FibPathType
+ 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
+from scapy.layers.inet import IP, UDP, ICMP
from scapy.layers.inet6 import IPv6
from scapy.contrib.mpls import MPLS
else:
self.assertEqual(rx[IP].ttl, tx[IP].ttl)
- def validate_inner6(self, rx, tx):
+ def validate_inner6(self, rx, tx, hlim=None):
self.assertEqual(rx.src, tx[IPv6].src)
self.assertEqual(rx.dst, tx[IPv6].dst)
- self.assertEqual(rx.hlim, tx[IPv6].hlim)
+ if hlim:
+ self.assertEqual(rx.hlim, hlim)
+ else:
+ self.assertEqual(rx.hlim, tx[IPv6].hlim)
def test_udp_encap(self):
""" UDP Encap test
self.validate_inner4(p, p_4omo4, ttl=63)
self.assertEqual(udp_encap_1.get_stats()['packets'], 2*NUM_PKTS)
+ 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):
Code Review / vpp.git / blobdiff