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vpp/test/test_gso.py
Arthur de Kerhor 0df06b6e95 ipsec: fix SA names consistency in tests 
In some IPsec tests, the SA called scapy_sa designs the SA that
encrypts Scapy packets and decrypts them in VPP, and the one
called vpp_sa the SA that encrypts VPP packets and decrypts them
with Scapy. However, this pattern is not consistent across all
tests. Some tests use the opposite logic. Others even mix both
correlating scapy_tra_spi with vpp_tra_sa_id and vice-versa.

Because of that, sometimes, the SA called vpp_sa_in is used as an
outbound SA and vpp_sa_out as an inbound one.

This patch forces all the tests to follow the same following logic:
- scapy_sa is the SA used to encrypt Scapy packets and decrypt
them in VPP. It matches the VPP inbound SA.
- vpp_sa is the SA used to encrypt VPP packets and decrypt them in
Scapy. It matches the VPP outbound SA.

Type: fix
Signed-off-by: Arthur de Kerhor <arthurdekerhor@gmail.com>
Change-Id: Iadccdccbf98e834add13b5f4ad87af57e2ea3c2a
2023-02-06 03:49:14 +00:00

1098 lines
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#!/usr/bin/env python3
"""GSO functional tests"""
#
# Add tests for:
# - GSO
# - Verify that sending Jumbo frame without GSO enabled correctly
# - Verify that sending Jumbo frame with GSO enabled correctly
# - Verify that sending Jumbo frame with GSO enabled only on ingress interface
#
import unittest
from scapy.packet import Raw
from scapy.layers.inet6 import IPv6, Ether, IP, UDP, ICMPv6PacketTooBig
from scapy.layers.inet6 import ipv6nh, IPerror6
from scapy.layers.inet import TCP, ICMP
from scapy.layers.vxlan import VXLAN
from scapy.data import ETH_P_IP, ETH_P_IPV6, ETH_P_ARP
from scapy.layers.ipsec import SecurityAssociation, ESP
from vpp_papi import VppEnum
from framework import VppTestCase, VppTestRunner
from vpp_object import VppObject
from vpp_interface import VppInterface
from vpp_ip import DpoProto
from vpp_ip_route import VppIpRoute, VppRoutePath, FibPathProto
from vpp_ipip_tun_interface import VppIpIpTunInterface
from vpp_vxlan_tunnel import VppVxlanTunnel
from socket import AF_INET, AF_INET6, inet_pton
from util import reassemble4
from vpp_ipsec import VppIpsecSA, VppIpsecTunProtect
from template_ipsec import (
IPsecIPv4Params,
IPsecIPv6Params,
mk_scapy_crypt_key,
config_tun_params,
)
""" Test_gso is a subclass of VPPTestCase classes.
GSO tests.
"""
class TestGSO(VppTestCase):
"""GSO Test Case"""
def __init__(self, *args):
VppTestCase.__init__(self, *args)
@classmethod
def setUpClass(self):
super(TestGSO, self).setUpClass()
res = self.create_pg_interfaces(range(2))
res_gso = self.create_pg_interfaces(range(2, 4), 1, 1460)
self.create_pg_interfaces(range(4, 5), 1, 8940)
self.pg_interfaces.append(res[0])
self.pg_interfaces.append(res[1])
self.pg_interfaces.append(res_gso[0])
self.pg_interfaces.append(res_gso[1])
@classmethod
def tearDownClass(self):
super(TestGSO, self).tearDownClass()
def setUp(self):
super(TestGSO, self).setUp()
for i in self.pg_interfaces:
i.admin_up()
i.config_ip4()
i.config_ip6()
i.disable_ipv6_ra()
i.resolve_arp()
i.resolve_ndp()
self.single_tunnel_bd = 10
self.vxlan = VppVxlanTunnel(
self,
src=self.pg0.local_ip4,
dst=self.pg0.remote_ip4,
vni=self.single_tunnel_bd,
)
self.vxlan2 = VppVxlanTunnel(
self,
src=self.pg0.local_ip6,
dst=self.pg0.remote_ip6,
vni=self.single_tunnel_bd,
)
self.ipip4 = VppIpIpTunInterface(
self, self.pg0, self.pg0.local_ip4, self.pg0.remote_ip4
)
self.ipip6 = VppIpIpTunInterface(
self, self.pg0, self.pg0.local_ip6, self.pg0.remote_ip6
)
def tearDown(self):
super(TestGSO, self).tearDown()
if not self.vpp_dead:
for i in self.pg_interfaces:
i.unconfig_ip4()
i.unconfig_ip6()
i.admin_down()
def test_gso(self):
"""GSO test"""
#
# Send jumbo frame with gso disabled and DF bit is set
#
p4 = (
Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac)
/ IP(src=self.pg0.remote_ip4, dst=self.pg1.remote_ip4, flags="DF")
/ TCP(sport=1234, dport=1234)
/ Raw(b"\xa5" * 65200)
)
rxs = self.send_and_expect(self.pg0, [p4], self.pg0)
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[ICMP].type, 3) # "dest-unreach"
self.assertEqual(rx[ICMP].code, 4) # "fragmentation-needed"
#
# Send checksum offload frames
#
p40 = (
Ether(src=self.pg2.remote_mac, dst=self.pg2.local_mac)
/ IP(src=self.pg2.remote_ip4, dst=self.pg0.remote_ip4, flags="DF")
/ TCP(sport=1234, dport=1234)
/ Raw(b"\xa5" * 1460)
)
rxs = self.send_and_expect(self.pg2, 100 * [p40], self.pg0)
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.pg2.remote_ip4)
self.assertEqual(rx[IP].dst, self.pg0.remote_ip4)
payload_len = rx[IP].len - 20 - 20
self.assert_ip_checksum_valid(rx)
self.assert_tcp_checksum_valid(rx)
self.assertEqual(payload_len, len(rx[Raw]))
p60 = (
Ether(src=self.pg2.remote_mac, dst=self.pg2.local_mac)
/ IPv6(src=self.pg2.remote_ip6, dst=self.pg0.remote_ip6)
/ TCP(sport=1234, dport=1234)
/ Raw(b"\xa5" * 1440)
)
rxs = self.send_and_expect(self.pg2, 100 * [p60], self.pg0)
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.pg2.remote_ip6)
self.assertEqual(rx[IPv6].dst, self.pg0.remote_ip6)
payload_len = rx[IPv6].plen - 20
self.assert_tcp_checksum_valid(rx)
self.assertEqual(payload_len, len(rx[Raw]))
#
# Send jumbo frame with gso enabled and DF bit is set
# input and output interfaces support GSO
#
self.vapi.feature_gso_enable_disable(
sw_if_index=self.pg3.sw_if_index, enable_disable=1
)
p41 = (
Ether(src=self.pg2.remote_mac, dst=self.pg2.local_mac)
/ IP(src=self.pg2.remote_ip4, dst=self.pg3.remote_ip4, flags="DF")
/ TCP(sport=1234, dport=1234)
/ Raw(b"\xa5" * 65200)
)
rxs = self.send_and_expect(self.pg2, 100 * [p41], self.pg3, 100)
for rx in rxs:
self.assertEqual(rx[Ether].src, self.pg3.local_mac)
self.assertEqual(rx[Ether].dst, self.pg3.remote_mac)
self.assertEqual(rx[IP].src, self.pg2.remote_ip4)
self.assertEqual(rx[IP].dst, self.pg3.remote_ip4)
self.assertEqual(rx[IP].len, 65240) # 65200 + 20 (IP) + 20 (TCP)
self.assertEqual(rx[TCP].sport, 1234)
self.assertEqual(rx[TCP].dport, 1234)
#
# ipv6
#
p61 = (
Ether(src=self.pg2.remote_mac, dst=self.pg2.local_mac)
/ IPv6(src=self.pg2.remote_ip6, dst=self.pg3.remote_ip6)
/ TCP(sport=1234, dport=1234)
/ Raw(b"\xa5" * 65200)
)
rxs = self.send_and_expect(self.pg2, 100 * [p61], self.pg3, 100)
for rx in rxs:
self.assertEqual(rx[Ether].src, self.pg3.local_mac)
self.assertEqual(rx[Ether].dst, self.pg3.remote_mac)
self.assertEqual(rx[IPv6].src, self.pg2.remote_ip6)
self.assertEqual(rx[IPv6].dst, self.pg3.remote_ip6)
self.assertEqual(rx[IPv6].plen, 65220) # 65200 + 20 (TCP)
self.assertEqual(rx[TCP].sport, 1234)
self.assertEqual(rx[TCP].dport, 1234)
#
# Send jumbo frame with gso enabled only on input interface
# and DF bit is set. GSO packet will be chunked into gso_size
# data payload
#
self.vapi.feature_gso_enable_disable(
sw_if_index=self.pg0.sw_if_index, enable_disable=1
)
p42 = (
Ether(src=self.pg2.remote_mac, dst=self.pg2.local_mac)
/ IP(src=self.pg2.remote_ip4, dst=self.pg0.remote_ip4, flags="DF")
/ TCP(sport=1234, dport=1234)
/ Raw(b"\xa5" * 65200)
)
rxs = self.send_and_expect(self.pg2, 5 * [p42], self.pg0, 225)
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.pg2.remote_ip4)
self.assertEqual(rx[IP].dst, self.pg0.remote_ip4)
payload_len = rx[IP].len - 20 - 20 # len - 20 (IP4) - 20 (TCP)
self.assert_ip_checksum_valid(rx)
self.assert_tcp_checksum_valid(rx)
self.assertEqual(rx[TCP].sport, 1234)
self.assertEqual(rx[TCP].dport, 1234)
self.assertEqual(payload_len, len(rx[Raw]))
size += payload_len
self.assertEqual(size, 65200 * 5)
#
# ipv6
#
p62 = (
Ether(src=self.pg2.remote_mac, dst=self.pg2.local_mac)
/ IPv6(src=self.pg2.remote_ip6, dst=self.pg0.remote_ip6)
/ TCP(sport=1234, dport=1234)
/ Raw(b"\xa5" * 65200)
)
rxs = self.send_and_expect(self.pg2, 5 * [p62], self.pg0, 225)
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.pg2.remote_ip6)
self.assertEqual(rx[IPv6].dst, self.pg0.remote_ip6)
payload_len = rx[IPv6].plen - 20
self.assert_tcp_checksum_valid(rx)
self.assertEqual(rx[TCP].sport, 1234)
self.assertEqual(rx[TCP].dport, 1234)
self.assertEqual(payload_len, len(rx[Raw]))
size += payload_len
self.assertEqual(size, 65200 * 5)
#
# Send jumbo frame with gso enabled only on input interface
# and DF bit is unset. GSO packet will be fragmented.
#
self.vapi.sw_interface_set_mtu(self.pg1.sw_if_index, [576, 0, 0, 0])
self.vapi.feature_gso_enable_disable(
sw_if_index=self.pg1.sw_if_index, enable_disable=1
)
p43 = (
Ether(src=self.pg2.remote_mac, dst=self.pg2.local_mac)
/ IP(src=self.pg2.remote_ip4, dst=self.pg1.remote_ip4)
/ TCP(sport=1234, dport=1234)
/ Raw(b"\xa5" * 65200)
)
rxs = self.send_and_expect(self.pg2, 5 * [p43], self.pg1, 5 * 119)
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.pg2.remote_ip4)
self.assertEqual(rx[IP].dst, self.pg1.remote_ip4)
self.assert_ip_checksum_valid(rx)
size += rx[IP].len - 20
size -= 20 * 5 # TCP header
self.assertEqual(size, 65200 * 5)
#
# 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_some(self.pg2, 5 * [p63], self.pg2, 5)
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)
)
rxs = self.send_and_expect(self.pg4, 5 * [p44], self.pg1, 165)
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)
payload_len = rx[IP].len - 20 - 20 # len - 20 (IP4) - 20 (TCP)
self.assert_ip_checksum_valid(rx)
self.assert_tcp_checksum_valid(rx)
self.assertEqual(payload_len, len(rx[Raw]))
size += payload_len
self.assertEqual(size, 65200 * 5)
#
# 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)
)
rxs = self.send_and_expect(self.pg4, 5 * [p64], self.pg1, 170)
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)
payload_len = rx[IPv6].plen - 20
self.assert_tcp_checksum_valid(rx)
self.assertEqual(payload_len, len(rx[Raw]))
size += payload_len
self.assertEqual(size, 65200 * 5)
self.vapi.feature_gso_enable_disable(
sw_if_index=self.pg0.sw_if_index, enable_disable=0
)
self.vapi.feature_gso_enable_disable(
sw_if_index=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(
sw_if_index=self.pg0.sw_if_index, enable_disable=1
)
#
# 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, 5 * [p45], self.pg0, 225)
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.assert_ip_checksum_valid(rx)
self.assert_udp_checksum_valid(rx, ignore_zero_checksum=False)
self.assertEqual(rx[VXLAN].vni, 10)
inner = rx[VXLAN].payload
self.assertEqual(rx[IP].len - 20 - 8 - 8, len(inner))
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")
self.assert_ip_checksum_valid(inner)
self.assert_tcp_checksum_valid(inner)
payload_len = inner[IP].len - 20 - 20
self.assertEqual(payload_len, len(inner[Raw]))
size += payload_len
self.assertEqual(size, 65200 * 5)
#
# 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, 5 * [p65], self.pg0, 225)
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.assert_ip_checksum_valid(rx)
self.assert_udp_checksum_valid(rx, ignore_zero_checksum=False)
self.assertEqual(rx[VXLAN].vni, 10)
inner = rx[VXLAN].payload
self.assertEqual(rx[IP].len - 20 - 8 - 8, len(inner))
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")
self.assert_tcp_checksum_valid(inner)
payload_len = inner[IPv6].plen - 20
self.assertEqual(payload_len, len(inner[Raw]))
size += payload_len
self.assertEqual(size, 65200 * 5)
#
# 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, 5 * [p46], self.pg0, 225)
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.assert_udp_checksum_valid(rx, ignore_zero_checksum=False)
self.assertEqual(rx[VXLAN].vni, 10)
inner = rx[VXLAN].payload
self.assertEqual(rx[IPv6].plen - 8 - 8, len(inner))
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")
self.assert_ip_checksum_valid(inner)
self.assert_tcp_checksum_valid(inner)
payload_len = inner[IP].len - 20 - 20
self.assertEqual(payload_len, len(inner[Raw]))
size += payload_len
self.assertEqual(size, 65200 * 5)
#
# 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, 5 * [p66], self.pg0, 225)
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.assert_udp_checksum_valid(rx, ignore_zero_checksum=False)
self.assertEqual(rx[VXLAN].vni, 10)
inner = rx[VXLAN].payload
self.assertEqual(rx[IPv6].plen - 8 - 8, len(inner))
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")
self.assert_tcp_checksum_valid(inner)
payload_len = inner[IPv6].plen - 20
self.assertEqual(payload_len, len(inner[Raw]))
size += payload_len
self.assertEqual(size, 65200 * 5)
#
# disable ipv4/vxlan
#
self.vxlan2.remove_vpp_config()
self.vapi.feature_gso_enable_disable(
sw_if_index=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(
sw_if_index=self.pg0.sw_if_index, enable_disable=1
)
#
# 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, 5 * [p47], self.pg0, 225)
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.assert_ip_checksum_valid(rx)
self.assertEqual(rx[IP].proto, 4) # ipencap
inner = rx[IP].payload
self.assertEqual(rx[IP].len - 20, len(inner))
self.assertEqual(inner[IP].src, self.pg2.remote_ip4)
self.assertEqual(inner[IP].dst, "172.16.10.3")
self.assert_ip_checksum_valid(inner)
self.assert_tcp_checksum_valid(inner)
payload_len = inner[IP].len - 20 - 20
self.assertEqual(payload_len, len(inner[Raw]))
size += payload_len
self.assertEqual(size, 65200 * 5)
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, 5 * [p67], self.pg0, 225)
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.assert_ip_checksum_valid(rx)
self.assertEqual(rx[IP].proto, 41) # ipv6
inner = rx[IP].payload
self.assertEqual(rx[IP].len - 20, len(inner))
self.assertEqual(inner[IPv6].src, self.pg2.remote_ip6)
self.assertEqual(inner[IPv6].dst, "fd01:10::3")
self.assert_tcp_checksum_valid(inner)
payload_len = inner[IPv6].plen - 20
self.assertEqual(payload_len, len(inner[Raw]))
size += payload_len
self.assertEqual(size, 65200 * 5)
#
# 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(
sw_if_index=self.pg0.sw_if_index, enable_disable=0
)
self.vapi.feature_gso_enable_disable(
sw_if_index=self.ipip4.sw_if_index, enable_disable=1
)
rxs = self.send_and_expect(self.pg2, 5 * [p47], self.pg0, 225)
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.assert_ip_checksum_valid(rx)
self.assertEqual(rx[IP].proto, 4) # ipencap
inner = rx[IP].payload
self.assertEqual(rx[IP].len - 20, len(inner))
self.assertEqual(inner[IP].src, self.pg2.remote_ip4)
self.assertEqual(inner[IP].dst, "172.16.10.3")
self.assert_ip_checksum_valid(inner)
self.assert_tcp_checksum_valid(inner)
payload_len = inner[IP].len - 20 - 20
self.assertEqual(payload_len, len(inner[Raw]))
size += payload_len
self.assertEqual(size, 65200 * 5)
#
# disable ipip4
#
self.vapi.feature_gso_enable_disable(
sw_if_index=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(
sw_if_index=self.pg0.sw_if_index, enable_disable=1
)
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, 5 * [p48], self.pg0, 225)
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(rx[IPv6].plen, len(inner))
self.assertEqual(inner[IP].src, self.pg2.remote_ip4)
self.assertEqual(inner[IP].dst, "172.16.10.3")
self.assert_ip_checksum_valid(inner)
self.assert_tcp_checksum_valid(inner)
payload_len = inner[IP].len - 20 - 20
self.assertEqual(payload_len, len(inner[Raw]))
size += payload_len
self.assertEqual(size, 65200 * 5)
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, 5 * [p68], self.pg0, 225)
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(rx[IPv6].plen, len(inner))
self.assertEqual(inner[IPv6].src, self.pg2.remote_ip6)
self.assertEqual(inner[IPv6].dst, "fd01:10::3")
self.assert_tcp_checksum_valid(inner)
payload_len = inner[IPv6].plen - 20
self.assertEqual(payload_len, len(inner[Raw]))
size += payload_len
self.assertEqual(size, 65200 * 5)
#
# 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(
sw_if_index=self.pg0.sw_if_index, enable_disable=0
)
def test_gso_ipsec(self):
"""GSO IPSEC test"""
#
# Send jumbo frame with gso enabled only on input interface and
# create IPIP tunnel on VPP pg0.
#
#
# enable ipip4
#
self.ipip4.add_vpp_config()
self.vapi.feature_gso_enable_disable(
sw_if_index=self.ipip4.sw_if_index, enable_disable=1
)
# 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()
# IPSec config
self.ipv4_params = IPsecIPv4Params()
self.encryption_type = ESP
config_tun_params(self.ipv4_params, self.encryption_type, self.ipip4)
self.tun_sa_in_v4 = VppIpsecSA(
self,
self.ipv4_params.scapy_tun_sa_id,
self.ipv4_params.scapy_tun_spi,
self.ipv4_params.auth_algo_vpp_id,
self.ipv4_params.auth_key,
self.ipv4_params.crypt_algo_vpp_id,
self.ipv4_params.crypt_key,
VppEnum.vl_api_ipsec_proto_t.IPSEC_API_PROTO_ESP,
)
self.tun_sa_in_v4.add_vpp_config()
self.tun_sa_out_v4 = VppIpsecSA(
self,
self.ipv4_params.vpp_tun_sa_id,
self.ipv4_params.vpp_tun_spi,
self.ipv4_params.auth_algo_vpp_id,
self.ipv4_params.auth_key,
self.ipv4_params.crypt_algo_vpp_id,
self.ipv4_params.crypt_key,
VppEnum.vl_api_ipsec_proto_t.IPSEC_API_PROTO_ESP,
)
self.tun_sa_out_v4.add_vpp_config()
self.tun_protect_v4 = VppIpsecTunProtect(
self, self.ipip4, self.tun_sa_out_v4, [self.tun_sa_in_v4]
)
self.tun_protect_v4.add_vpp_config()
# Set interface up and enable IP on it
self.ipip4.admin_up()
self.ipip4.set_unnumbered(self.pg0.sw_if_index)
#
# IPv4/IPv4 - IPSEC
#
ipsec44 = (
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, [ipsec44], 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, 50) # ESP
self.assertEqual(rx[ESP].spi, self.ipv4_params.vpp_tun_spi)
inner = self.ipv4_params.vpp_tun_sa.decrypt(rx[IP])
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 - IPSEC
#
ipsec46 = (
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, [ipsec46], 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, 50) # ESP
self.assertEqual(rx[ESP].spi, self.ipv4_params.vpp_tun_spi)
inner = self.ipv4_params.vpp_tun_sa.decrypt(rx[IP])
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 IPSec
self.tun_protect_v4.remove_vpp_config()
self.tun_sa_in_v4.remove_vpp_config()
self.tun_sa_out_v4.remove_vpp_config()
#
# 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.ipip6.add_vpp_config()
self.vapi.feature_gso_enable_disable(self.ipip6.sw_if_index, enable_disable=1)
# 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()
# IPSec config
self.ipv6_params = IPsecIPv6Params()
self.encryption_type = ESP
config_tun_params(self.ipv6_params, self.encryption_type, self.ipip6)
self.tun_sa_in_v6 = VppIpsecSA(
self,
self.ipv6_params.scapy_tun_sa_id,
self.ipv6_params.scapy_tun_spi,
self.ipv6_params.auth_algo_vpp_id,
self.ipv6_params.auth_key,
self.ipv6_params.crypt_algo_vpp_id,
self.ipv6_params.crypt_key,
VppEnum.vl_api_ipsec_proto_t.IPSEC_API_PROTO_ESP,
)
self.tun_sa_in_v6.add_vpp_config()
self.tun_sa_out_v6 = VppIpsecSA(
self,
self.ipv6_params.vpp_tun_sa_id,
self.ipv6_params.vpp_tun_spi,
self.ipv6_params.auth_algo_vpp_id,
self.ipv6_params.auth_key,
self.ipv6_params.crypt_algo_vpp_id,
self.ipv6_params.crypt_key,
VppEnum.vl_api_ipsec_proto_t.IPSEC_API_PROTO_ESP,
)
self.tun_sa_out_v6.add_vpp_config()
self.tun_protect_v6 = VppIpsecTunProtect(
self, self.ipip6, self.tun_sa_out_v6, [self.tun_sa_in_v6]
)
self.tun_protect_v6.add_vpp_config()
#
# IPv6/IPv4 - IPSEC
#
ipsec64 = (
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, [ipsec64], 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], "ESP Header")
self.assertEqual(rx[ESP].spi, self.ipv6_params.vpp_tun_spi)
inner = self.ipv6_params.vpp_tun_sa.decrypt(rx[IPv6])
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 - IPSEC
#
ipsec66 = (
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, [ipsec66], 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], "ESP Header")
self.assertEqual(rx[ESP].spi, self.ipv6_params.vpp_tun_spi)
inner = self.ipv6_params.vpp_tun_sa.decrypt(rx[IPv6])
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 IPSec
self.tun_protect_v6.remove_vpp_config()
self.tun_sa_in_v6.remove_vpp_config()
self.tun_sa_out_v6.remove_vpp_config()
#
# 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)
if __name__ == "__main__":
unittest.main(testRunner=VppTestRunner)
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