udp: add udp decapsulation
[vpp.git] / test / test_udp.py
index 96375f0..3281c0d 100644 (file)
@@ -1,19 +1,36 @@
-#!/usr/bin/env python
+#!/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_ip_route import VppIpRoute, VppRoutePath, VppIpTable, VppMplsLabel
+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
+from scapy.layers.inet import IP, UDP, ICMP
 from scapy.layers.inet6 import IPv6
 from scapy.contrib.mpls import MPLS
 
+NUM_PKTS = 67
+
 
+@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()
 
@@ -48,7 +65,6 @@ class TestUdpEncap(VppTestCase):
         for i in self.pg_interfaces:
             i.unconfig_ip4()
             i.unconfig_ip6()
-            i.ip6_disable()
             i.set_table_ip4(0)
             i.set_table_ip6(0)
             i.admin_down()
@@ -74,10 +90,13 @@ class TestUdpEncap(VppTestCase):
         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
@@ -85,7 +104,7 @@ class TestUdpEncap(VppTestCase):
 
         #
         # construct a UDP encap object through each of the peers
-        # v4 through the first two peears, v6 through the second.
+        # v4 through the first two peers, v6 through the second.
         #
         udp_encap_0 = VppUdpEncap(self,
                                   self.pg0.local_ip4,
@@ -121,32 +140,34 @@ class TestUdpEncap(VppTestCase):
         #
         # Routes via each UDP encap object - all combinations of v4 and v6.
         #
-        route_4o4 = VppIpRoute(self, "1.1.0.1", 32,
-                               [VppRoutePath("0.0.0.0",
-                                             0xFFFFFFFF,
-                                             is_udp_encap=1,
-                                             next_hop_id=udp_encap_0.id)])
-        route_4o6 = VppIpRoute(self, "1.1.2.1", 32,
-                               [VppRoutePath("0.0.0.0",
-                                             0xFFFFFFFF,
-                                             is_udp_encap=1,
-                                             next_hop_id=udp_encap_2.id)])
-        route_6o4 = VppIpRoute(self, "2001::1", 128,
-                               [VppRoutePath("0.0.0.0",
-                                             0xFFFFFFFF,
-                                             is_udp_encap=1,
-                                             next_hop_id=udp_encap_1.id)],
-                               is_ip6=1)
-        route_6o6 = VppIpRoute(self, "2001::3", 128,
-                               [VppRoutePath("0.0.0.0",
-                                             0xFFFFFFFF,
-                                             is_udp_encap=1,
-                                             next_hop_id=udp_encap_3.id)],
-                               is_ip6=1)
-        route_4o4.add_vpp_config()
+        route_4o4 = VppIpRoute(
+            self, "1.1.0.1", 32,
+            [VppRoutePath("0.0.0.0",
+                          0xFFFFFFFF,
+                          type=FibPathType.FIB_PATH_TYPE_UDP_ENCAP,
+                          next_hop_id=udp_encap_0.id)])
+        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)])
+        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)])
+        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)])
         route_4o6.add_vpp_config()
         route_6o6.add_vpp_config()
         route_6o4.add_vpp_config()
+        route_4o4.add_vpp_config()
 
         #
         # 4o4 encap
@@ -155,13 +176,13 @@ class TestUdpEncap(VppTestCase):
                        dst=self.pg0.local_mac) /
                  IP(src="2.2.2.2", dst="1.1.0.1") /
                  UDP(sport=1234, dport=1234) /
-                 Raw('\xa5' * 100))
-        rx = self.send_and_expect(self.pg0, p_4o4*65, self.pg0)
+                 Raw(b'\xa5' * 100))
+        rx = self.send_and_expect(self.pg0, p_4o4*NUM_PKTS, self.pg0)
         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'], 65)
+        self.assertEqual(udp_encap_0.get_stats()['packets'], NUM_PKTS)
 
         #
         # 4o6 encap
@@ -170,13 +191,13 @@ class TestUdpEncap(VppTestCase):
                        dst=self.pg0.local_mac) /
                  IP(src="2.2.2.2", dst="1.1.2.1") /
                  UDP(sport=1234, dport=1234) /
-                 Raw('\xa5' * 100))
-        rx = self.send_and_expect(self.pg0, p_4o6*65, self.pg2)
+                 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'], 65)
+        self.assertEqual(udp_encap_2.get_stats()['packets'], NUM_PKTS)
 
         #
         # 6o4 encap
@@ -185,13 +206,13 @@ class TestUdpEncap(VppTestCase):
                        dst=self.pg0.local_mac) /
                  IPv6(src="2001::100", dst="2001::1") /
                  UDP(sport=1234, dport=1234) /
-                 Raw('\xa5' * 100))
-        rx = self.send_and_expect(self.pg0, p_6o4*65, self.pg1)
+                 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'], 65)
+        self.assertEqual(udp_encap_1.get_stats()['packets'], NUM_PKTS)
 
         #
         # 6o6 encap
@@ -200,39 +221,175 @@ class TestUdpEncap(VppTestCase):
                        dst=self.pg0.local_mac) /
                  IPv6(src="2001::100", dst="2001::3") /
                  UDP(sport=1234, dport=1234) /
-                 Raw('\xa5' * 100))
-        rx = self.send_and_expect(self.pg0, p_6o6*65, self.pg3)
+                 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'], 65)
+        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,
-                                                  is_udp_encap=1,
-                                                  next_hop_id=1,
-                                                  labels=[VppMplsLabel(66)])])
+        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('\xa5' * 100))
-        rx = self.send_and_expect(self.pg0, p_4omo4*65, self.pg1)
+                   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'], 130)
+        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):
     """ UDP Test Case """
 
@@ -240,9 +397,13 @@ class TestUDP(VppTestCase):
     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_enabled=1)
+        self.vapi.session_enable_disable(is_enable=1)
         self.create_loopback_interfaces(2)
 
         table_id = 0
@@ -259,17 +420,17 @@ class TestUDP(VppTestCase):
             table_id += 1
 
         # Configure namespaces
-        self.vapi.app_namespace_add(namespace_id="0",
-                                    sw_if_index=self.loop0.sw_if_index)
-        self.vapi.app_namespace_add(namespace_id="1",
-                                    sw_if_index=self.loop1.sw_if_index)
+        self.vapi.app_namespace_add_del(namespace_id="0",
+                                        sw_if_index=self.loop0.sw_if_index)
+        self.vapi.app_namespace_add_del(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_enabled=0)
+        self.vapi.session_enable_disable(is_enable=0)
         super(TestUDP, self).tearDown()
 
     def test_udp_transfer(self):
@@ -293,14 +454,16 @@ class TestUDP(VppTestCase):
                               "uri " + uri)
         if error:
             self.logger.critical(error)
-            self.assertEqual(error.find("failed"), -1)
+            self.assertNotIn("failed", error)
 
         error = self.vapi.cli("test echo client mbytes 10 appns 1 " +
                               "fifo-size 4 no-output test-bytes " +
                               "syn-timeout 2 no-return uri " + uri)
         if error:
             self.logger.critical(error)
-            self.assertEqual(error.find("failed"), -1)
+            self.assertNotIn("failed", error)
+
+        self.logger.debug(self.vapi.cli("show session verbose 2"))
 
         # Delete inter-table routes
         ip_t01.remove_vpp_config()