+ #
+ # IPv6
+ # Send jumbo frame with gso enabled only on input interface.
+ # ICMPv6 Packet Too Big will be sent back to sender.
+ #
+ self.vapi.sw_interface_set_mtu(self.pg1.sw_if_index, [1280, 0, 0, 0])
+ p63 = (Ether(src=self.pg2.remote_mac, dst=self.pg2.local_mac) /
+ IPv6(src=self.pg2.remote_ip6, dst=self.pg1.remote_ip6) /
+ TCP(sport=1234, dport=1234) /
+ Raw(b'\xa5' * 65200))
+
+ rxs = self.send_and_expect(self.pg2, [p63], self.pg2, 1)
+ for rx in rxs:
+ self.assertEqual(rx[Ether].src, self.pg2.local_mac)
+ self.assertEqual(rx[Ether].dst, self.pg2.remote_mac)
+ self.assertEqual(rx[IPv6].src, self.pg2.local_ip6)
+ self.assertEqual(rx[IPv6].dst, self.pg2.remote_ip6)
+ self.assertEqual(rx[IPv6].plen, 1240) # MTU - IPv6 header
+ self.assertEqual(ipv6nh[rx[IPv6].nh], "ICMPv6")
+ self.assertEqual(rx[ICMPv6PacketTooBig].mtu, 1280)
+ self.assertEqual(rx[IPerror6].src, self.pg2.remote_ip6)
+ self.assertEqual(rx[IPerror6].dst, self.pg1.remote_ip6)
+ self.assertEqual(rx[IPerror6].plen - 20, 65200)
+
+ #
+ # Send jumbo frame with gso enabled only on input interface with 9K MTU
+ # and DF bit is unset. GSO packet will be fragmented. MSS is 8960. GSO
+ # size will be min(MSS, 2048 - 14 - 20) vlib_buffer_t size
+ #
+ self.vapi.sw_interface_set_mtu(self.pg1.sw_if_index, [9000, 0, 0, 0])
+ self.vapi.sw_interface_set_mtu(self.pg4.sw_if_index, [9000, 0, 0, 0])
+ p44 = (Ether(src=self.pg4.remote_mac, dst=self.pg4.local_mac) /
+ IP(src=self.pg4.remote_ip4, dst=self.pg1.remote_ip4) /
+ TCP(sport=1234, dport=1234) /
+ Raw(b'\xa5' * 65200))
+
+ self.pg1.enable_capture()
+ rxs = self.send_and_expect(self.pg4, [p44], self.pg1, 33)
+ size = 0
+ for rx in rxs:
+ self.assertEqual(rx[Ether].src, self.pg1.local_mac)
+ self.assertEqual(rx[Ether].dst, self.pg1.remote_mac)
+ self.assertEqual(rx[IP].src, self.pg4.remote_ip4)
+ self.assertEqual(rx[IP].dst, self.pg1.remote_ip4)
+ size = rxs[32][TCP].seq + rxs[32][IP].len - 20 - 20
+ self.assertEqual(size, 65200)
+
+ #
+ # IPv6
+ #
+ p64 = (Ether(src=self.pg4.remote_mac, dst=self.pg4.local_mac) /
+ IPv6(src=self.pg4.remote_ip6, dst=self.pg1.remote_ip6) /
+ TCP(sport=1234, dport=1234) /
+ Raw(b'\xa5' * 65200))
+
+ self.pg1.enable_capture()
+ rxs = self.send_and_expect(self.pg4, [p64], self.pg1, 34)
+ size = 0
+ for rx in rxs:
+ self.assertEqual(rx[Ether].src, self.pg1.local_mac)
+ self.assertEqual(rx[Ether].dst, self.pg1.remote_mac)
+ self.assertEqual(rx[IPv6].src, self.pg4.remote_ip6)
+ self.assertEqual(rx[IPv6].dst, self.pg1.remote_ip6)
+ size = rxs[33][TCP].seq + rxs[33][IPv6].plen - 20
+ self.assertEqual(size, 65200)
+
+ self.vapi.feature_gso_enable_disable(self.pg0.sw_if_index,
+ enable_disable=0)
+ self.vapi.feature_gso_enable_disable(self.pg1.sw_if_index,
+ enable_disable=0)
+
+ def test_gso_vxlan(self):
+ """ GSO VXLAN test """
+ self.logger.info(self.vapi.cli("sh int addr"))
+ #
+ # Send jumbo frame with gso enabled only on input interface and
+ # create VXLAN VTEP on VPP pg0, and put vxlan_tunnel0 and pg2
+ # into BD.
+ #
+
+ #
+ # enable ipv4/vxlan
+ #
+ self.vxlan.add_vpp_config()
+ self.vapi.sw_interface_set_l2_bridge(
+ rx_sw_if_index=self.vxlan.sw_if_index, bd_id=self.single_tunnel_bd)
+ self.vapi.sw_interface_set_l2_bridge(
+ rx_sw_if_index=self.pg2.sw_if_index, bd_id=self.single_tunnel_bd)
+ self.vapi.feature_gso_enable_disable(self.pg0.sw_if_index)
+
+ #
+ # IPv4/IPv4 - VXLAN
+ #
+ p45 = (Ether(src=self.pg2.remote_mac, dst="02:fe:60:1e:a2:79") /
+ IP(src=self.pg2.remote_ip4, dst="172.16.3.3", flags='DF') /
+ TCP(sport=1234, dport=1234) /
+ Raw(b'\xa5' * 65200))
+
+ rxs = self.send_and_expect(self.pg2, [p45], self.pg0, 45)
+ size = 0
+ for rx in rxs:
+ self.assertEqual(rx[Ether].src, self.pg0.local_mac)
+ self.assertEqual(rx[Ether].dst, self.pg0.remote_mac)
+ self.assertEqual(rx[IP].src, self.pg0.local_ip4)
+ self.assertEqual(rx[IP].dst, self.pg0.remote_ip4)
+ self.assertEqual(rx[VXLAN].vni, 10)
+ inner = rx[VXLAN].payload
+ self.assertEqual(inner[Ether].src, self.pg2.remote_mac)
+ self.assertEqual(inner[Ether].dst, "02:fe:60:1e:a2:79")
+ self.assertEqual(inner[IP].src, self.pg2.remote_ip4)
+ self.assertEqual(inner[IP].dst, "172.16.3.3")
+ size += inner[IP].len - 20 - 20
+ self.assertEqual(size, 65200)
+
+ #
+ # IPv4/IPv6 - VXLAN
+ #
+ p65 = (Ether(src=self.pg2.remote_mac, dst="02:fe:60:1e:a2:79") /
+ IPv6(src=self.pg2.remote_ip6, dst="fd01:3::3") /
+ TCP(sport=1234, dport=1234) /
+ Raw(b'\xa5' * 65200))
+
+ rxs = self.send_and_expect(self.pg2, [p65], self.pg0, 45)
+ size = 0
+ for rx in rxs:
+ self.assertEqual(rx[Ether].src, self.pg0.local_mac)
+ self.assertEqual(rx[Ether].dst, self.pg0.remote_mac)
+ self.assertEqual(rx[IP].src, self.pg0.local_ip4)
+ self.assertEqual(rx[IP].dst, self.pg0.remote_ip4)
+ self.assertEqual(rx[VXLAN].vni, 10)
+ inner = rx[VXLAN].payload
+ self.assertEqual(inner[Ether].src, self.pg2.remote_mac)
+ self.assertEqual(inner[Ether].dst, "02:fe:60:1e:a2:79")
+ self.assertEqual(inner[IPv6].src, self.pg2.remote_ip6)
+ self.assertEqual(inner[IPv6].dst, "fd01:3::3")
+ size += inner[IPv6].plen - 20
+ self.assertEqual(size, 65200)
+
+ #
+ # disable ipv4/vxlan
+ #
+ self.vxlan.remove_vpp_config()
+
+ #
+ # enable ipv6/vxlan
+ #
+ self.vxlan2.add_vpp_config()
+ self.vapi.sw_interface_set_l2_bridge(
+ rx_sw_if_index=self.vxlan2.sw_if_index,
+ bd_id=self.single_tunnel_bd)
+
+ #
+ # IPv6/IPv4 - VXLAN
+ #
+ p46 = (Ether(src=self.pg2.remote_mac, dst="02:fe:60:1e:a2:79") /
+ IP(src=self.pg2.remote_ip4, dst="172.16.3.3", flags='DF') /
+ TCP(sport=1234, dport=1234) /
+ Raw(b'\xa5' * 65200))
+
+ rxs = self.send_and_expect(self.pg2, [p46], self.pg0, 45)
+ size = 0
+ for rx in rxs:
+ self.assertEqual(rx[Ether].src, self.pg0.local_mac)
+ self.assertEqual(rx[Ether].dst, self.pg0.remote_mac)
+ self.assertEqual(rx[IPv6].src, self.pg0.local_ip6)
+ self.assertEqual(rx[IPv6].dst, self.pg0.remote_ip6)
+ self.assertEqual(rx[VXLAN].vni, 10)
+ inner = rx[VXLAN].payload
+ self.assertEqual(inner[Ether].src, self.pg2.remote_mac)
+ self.assertEqual(inner[Ether].dst, "02:fe:60:1e:a2:79")
+ self.assertEqual(inner[IP].src, self.pg2.remote_ip4)
+ self.assertEqual(inner[IP].dst, "172.16.3.3")
+ size += inner[IP].len - 20 - 20
+ self.assertEqual(size, 65200)
+
+ #
+ # IPv6/IPv6 - VXLAN
+ #
+ p66 = (Ether(src=self.pg2.remote_mac, dst="02:fe:60:1e:a2:79") /
+ IPv6(src=self.pg2.remote_ip6, dst="fd01:3::3") /
+ TCP(sport=1234, dport=1234) /
+ Raw(b'\xa5' * 65200))
+
+ rxs = self.send_and_expect(self.pg2, [p66], self.pg0, 45)
+ size = 0
+ for rx in rxs:
+ self.assertEqual(rx[Ether].src, self.pg0.local_mac)
+ self.assertEqual(rx[Ether].dst, self.pg0.remote_mac)
+ self.assertEqual(rx[IPv6].src, self.pg0.local_ip6)
+ self.assertEqual(rx[IPv6].dst, self.pg0.remote_ip6)
+ self.assertEqual(rx[VXLAN].vni, 10)
+ inner = rx[VXLAN].payload
+ self.assertEqual(inner[Ether].src, self.pg2.remote_mac)
+ self.assertEqual(inner[Ether].dst, "02:fe:60:1e:a2:79")
+ self.assertEqual(inner[IPv6].src, self.pg2.remote_ip6)
+ self.assertEqual(inner[IPv6].dst, "fd01:3::3")
+ size += inner[IPv6].plen - 20
+ self.assertEqual(size, 65200)
+
+ #
+ # disable ipv4/vxlan
+ #
+ self.vxlan2.remove_vpp_config()
+
+ self.vapi.feature_gso_enable_disable(self.pg0.sw_if_index,
+ enable_disable=0)
+
+ def test_gso_ipip(self):
+ """ GSO IPIP test """
+ self.logger.info(self.vapi.cli("sh int addr"))
+ #
+ # Send jumbo frame with gso enabled only on input interface and
+ # create IPIP tunnel on VPP pg0.
+ #
+ self.vapi.feature_gso_enable_disable(self.pg0.sw_if_index)
+
+ #
+ # enable ipip4
+ #
+ self.ipip4.add_vpp_config()
+
+ # Set interface up and enable IP on it
+ self.ipip4.admin_up()
+ self.ipip4.set_unnumbered(self.pg0.sw_if_index)
+
+ # Add IPv4 routes via tunnel interface
+ self.ip4_via_ip4_tunnel = VppIpRoute(
+ self, "172.16.10.0", 24,
+ [VppRoutePath("0.0.0.0",
+ self.ipip4.sw_if_index,
+ proto=FibPathProto.FIB_PATH_NH_PROTO_IP4)])
+ self.ip4_via_ip4_tunnel.add_vpp_config()
+
+ #
+ # IPv4/IPv4 - IPIP
+ #
+ p47 = (Ether(src=self.pg2.remote_mac, dst="02:fe:60:1e:a2:79") /
+ IP(src=self.pg2.remote_ip4, dst="172.16.10.3", flags='DF') /
+ TCP(sport=1234, dport=1234) /
+ Raw(b'\xa5' * 65200))
+
+ rxs = self.send_and_expect(self.pg2, [p47], self.pg0, 45)
+ size = 0
+ for rx in rxs:
+ self.assertEqual(rx[Ether].src, self.pg0.local_mac)
+ self.assertEqual(rx[Ether].dst, self.pg0.remote_mac)
+ self.assertEqual(rx[IP].src, self.pg0.local_ip4)
+ self.assertEqual(rx[IP].dst, self.pg0.remote_ip4)
+ self.assertEqual(rx[IP].proto, 4) # ipencap
+ inner = rx[IP].payload
+ self.assertEqual(inner[IP].src, self.pg2.remote_ip4)
+ self.assertEqual(inner[IP].dst, "172.16.10.3")
+ size += inner[IP].len - 20 - 20
+ self.assertEqual(size, 65200)
+
+ self.ip6_via_ip4_tunnel = VppIpRoute(
+ self, "fd01:10::", 64,
+ [VppRoutePath("::",
+ self.ipip4.sw_if_index,
+ proto=FibPathProto.FIB_PATH_NH_PROTO_IP6)])
+ self.ip6_via_ip4_tunnel.add_vpp_config()
+ #
+ # IPv4/IPv6 - IPIP
+ #
+ p67 = (Ether(src=self.pg2.remote_mac, dst="02:fe:60:1e:a2:79") /
+ IPv6(src=self.pg2.remote_ip6, dst="fd01:10::3") /
+ TCP(sport=1234, dport=1234) /
+ Raw(b'\xa5' * 65200))
+
+ rxs = self.send_and_expect(self.pg2, [p67], self.pg0, 45)
+ size = 0
+ for rx in rxs:
+ self.assertEqual(rx[Ether].src, self.pg0.local_mac)
+ self.assertEqual(rx[Ether].dst, self.pg0.remote_mac)
+ self.assertEqual(rx[IP].src, self.pg0.local_ip4)
+ self.assertEqual(rx[IP].dst, self.pg0.remote_ip4)
+ self.assertEqual(rx[IP].proto, 41) # ipv6
+ inner = rx[IP].payload
+ self.assertEqual(inner[IPv6].src, self.pg2.remote_ip6)
+ self.assertEqual(inner[IPv6].dst, "fd01:10::3")
+ size += inner[IPv6].plen - 20
+ self.assertEqual(size, 65200)
+
+ #
+ # Send jumbo frame with gso enabled only on input interface and
+ # create IPIP tunnel on VPP pg0. Enable gso feature node on ipip
+ # tunnel - IPSec use case
+ #
+ self.vapi.feature_gso_enable_disable(self.pg0.sw_if_index,
+ enable_disable=0)
+ self.vapi.feature_gso_enable_disable(self.ipip4.sw_if_index)
+
+ rxs = self.send_and_expect(self.pg2, [p47], self.pg0, 45)
+ size = 0
+ for rx in rxs:
+ self.assertEqual(rx[Ether].src, self.pg0.local_mac)
+ self.assertEqual(rx[Ether].dst, self.pg0.remote_mac)
+ self.assertEqual(rx[IP].src, self.pg0.local_ip4)
+ self.assertEqual(rx[IP].dst, self.pg0.remote_ip4)
+ self.assertEqual(rx[IP].proto, 4) # ipencap
+ inner = rx[IP].payload
+ self.assertEqual(inner[IP].src, self.pg2.remote_ip4)
+ self.assertEqual(inner[IP].dst, "172.16.10.3")
+ size += inner[IP].len - 20 - 20
+ self.assertEqual(size, 65200)
+
+ #
+ # disable ipip4
+ #
+ self.vapi.feature_gso_enable_disable(self.ipip4.sw_if_index,
+ enable_disable=0)
+ self.ip4_via_ip4_tunnel.remove_vpp_config()
+ self.ip6_via_ip4_tunnel.remove_vpp_config()
+ self.ipip4.remove_vpp_config()
+
+ #
+ # enable ipip6
+ #
+ self.vapi.feature_gso_enable_disable(self.pg0.sw_if_index)
+ self.ipip6.add_vpp_config()
+
+ # Set interface up and enable IP on it
+ self.ipip6.admin_up()
+ self.ipip6.set_unnumbered(self.pg0.sw_if_index)
+
+ # Add IPv4 routes via tunnel interface
+ self.ip4_via_ip6_tunnel = VppIpRoute(
+ self, "172.16.10.0", 24,
+ [VppRoutePath("0.0.0.0",
+ self.ipip6.sw_if_index,
+ proto=FibPathProto.FIB_PATH_NH_PROTO_IP4)])
+ self.ip4_via_ip6_tunnel.add_vpp_config()
+
+ #
+ # IPv6/IPv4 - IPIP
+ #
+ p48 = (Ether(src=self.pg2.remote_mac, dst="02:fe:60:1e:a2:79") /
+ IP(src=self.pg2.remote_ip4, dst="172.16.10.3", flags='DF') /
+ TCP(sport=1234, dport=1234) /
+ Raw(b'\xa5' * 65200))
+
+ rxs = self.send_and_expect(self.pg2, [p48], self.pg0, 45)
+ size = 0
+ for rx in rxs:
+ self.assertEqual(rx[Ether].src, self.pg0.local_mac)
+ self.assertEqual(rx[Ether].dst, self.pg0.remote_mac)
+ self.assertEqual(rx[IPv6].src, self.pg0.local_ip6)
+ self.assertEqual(rx[IPv6].dst, self.pg0.remote_ip6)
+ self.assertEqual(ipv6nh[rx[IPv6].nh], "IP")
+ inner = rx[IPv6].payload
+ self.assertEqual(inner[IP].src, self.pg2.remote_ip4)
+ self.assertEqual(inner[IP].dst, "172.16.10.3")
+ size += inner[IP].len - 20 - 20
+ self.assertEqual(size, 65200)
+
+ self.ip6_via_ip6_tunnel = VppIpRoute(
+ self, "fd01:10::", 64,
+ [VppRoutePath("::",
+ self.ipip6.sw_if_index,
+ proto=FibPathProto.FIB_PATH_NH_PROTO_IP6)])
+ self.ip6_via_ip6_tunnel.add_vpp_config()
+
+ #
+ # IPv6/IPv6 - IPIP
+ #
+ p68 = (Ether(src=self.pg2.remote_mac, dst="02:fe:60:1e:a2:79") /
+ IPv6(src=self.pg2.remote_ip6, dst="fd01:10::3") /
+ TCP(sport=1234, dport=1234) /
+ Raw(b'\xa5' * 65200))
+
+ rxs = self.send_and_expect(self.pg2, [p68], self.pg0, 45)
+ size = 0
+ for rx in rxs:
+ self.assertEqual(rx[Ether].src, self.pg0.local_mac)
+ self.assertEqual(rx[Ether].dst, self.pg0.remote_mac)
+ self.assertEqual(rx[IPv6].src, self.pg0.local_ip6)
+ self.assertEqual(rx[IPv6].dst, self.pg0.remote_ip6)
+ self.assertEqual(ipv6nh[rx[IPv6].nh], "IPv6")
+ inner = rx[IPv6].payload
+ self.assertEqual(inner[IPv6].src, self.pg2.remote_ip6)
+ self.assertEqual(inner[IPv6].dst, "fd01:10::3")
+ size += inner[IPv6].plen - 20
+ self.assertEqual(size, 65200)
+
+ #
+ # disable ipip6
+ #
+ self.ip4_via_ip6_tunnel.remove_vpp_config()
+ self.ip6_via_ip6_tunnel.remove_vpp_config()
+ self.ipip6.remove_vpp_config()
+
+ self.vapi.feature_gso_enable_disable(self.pg0.sw_if_index,
+ enable_disable=0)
+