8800f732f8
- Make framework.py classes a subset of asfframework.py classes - Remove all packet related code from asfframework.py - Add test class and test case set up debug output to log - Repatriate packet tests from asf to test directory - Remove non-packet related code from framework.py and inherit them from asfframework.py classes - Clean up unused import variables - Re-enable BFD tests on Ubuntu 22.04 and fix intermittent test failures in echo_looped_back testcases (where # control packets verified but not guaranteed to be received during test) - Re-enable Wireguard tests on Ubuntu 22.04 and fix intermittent test failures in handshake ratelimiting testcases and event testcase - Run Wiregard testcase suites solo - Improve debug output in log.txt - Increase VCL/LDP post sleep timeout to allow iperf server to finish cleanly. - Fix pcap history files to be sorted by suite and testcase and ensure order/timestamp is correct based on creation in the testcase. - Decode pcap files for each suite and testcase for all errors or if configured via comandline option / env var - Improve vpp corefile detection to allow complete corefile generation - Disable vm vpp interfaces testcases on debian11 - Clean up failed unittest dir when retrying failed testcases and unify testname directory and failed linknames into framwork functions Type: test Change-Id: I0764f79ea5bb639d278bf635ed2408d4d5220e1e Signed-off-by: Dave Wallace <dwallacelf@gmail.com>
365 lines
12 KiB
Python
365 lines
12 KiB
Python
#!/usr/bin/env python3
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from util import ip4_range
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import unittest
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from config import config
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from framework import VppTestCase
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from asfframework import VppTestRunner
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from template_bd import BridgeDomain
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from scapy.layers.l2 import Ether
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from scapy.packet import bind_layers
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from scapy.layers.inet import IP, UDP
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from scapy.layers.vxlan import VXLAN
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import util
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from vpp_ip_route import VppIpRoute, VppRoutePath
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from vpp_vxlan_gpe_tunnel import VppVxlanGpeTunnel
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from vpp_ip import INVALID_INDEX
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@unittest.skipUnless(config.extended, "part of extended tests")
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class TestVxlanGpe(BridgeDomain, VppTestCase):
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"""VXLAN-GPE Test Case"""
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def __init__(self, *args):
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BridgeDomain.__init__(self)
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VppTestCase.__init__(self, *args)
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def encapsulate(self, pkt, vni):
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"""
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Encapsulate the original payload frame by adding VXLAN-GPE header
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with its UDP, IP and Ethernet fields
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"""
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return (
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Ether(src=self.pg0.remote_mac, dst=self.pg0.local_mac)
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/ IP(src=self.pg0.remote_ip4, dst=self.pg0.local_ip4)
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/ UDP(sport=self.dport, dport=self.dport, chksum=0)
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/ VXLAN(vni=vni, flags=self.flags)
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/ pkt
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)
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def ip_range(self, start, end):
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"""range of remote ip's"""
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return ip4_range(self.pg0.remote_ip4, start, end)
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def encap_mcast(self, pkt, src_ip, src_mac, vni):
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"""
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Encapsulate the original payload frame by adding VXLAN-GPE header
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with its UDP, IP and Ethernet fields
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"""
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return (
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Ether(src=src_mac, dst=self.mcast_mac)
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/ IP(src=src_ip, dst=self.mcast_ip4)
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/ UDP(sport=self.dport, dport=self.dport, chksum=0)
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/ VXLAN(vni=vni, flags=self.flags)
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/ pkt
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)
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def decapsulate(self, pkt):
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"""
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Decapsulate the original payload frame by removing VXLAN-GPE header
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"""
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# check if is set I and P flag
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self.assertEqual(pkt[VXLAN].flags, 0x0C)
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return pkt[VXLAN].payload
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# Method for checking VXLAN-GPE encapsulation.
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#
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def check_encapsulation(self, pkt, vni, local_only=False, mcast_pkt=False):
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# Verify source MAC is VPP_MAC and destination MAC is MY_MAC resolved
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# by VPP using ARP.
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self.assertEqual(pkt[Ether].src, self.pg0.local_mac)
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if not local_only:
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if not mcast_pkt:
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self.assertEqual(pkt[Ether].dst, self.pg0.remote_mac)
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else:
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self.assertEqual(pkt[Ether].dst, type(self).mcast_mac)
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# Verify VXLAN-GPE tunnel src IP is VPP_IP and dst IP is MY_IP.
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self.assertEqual(pkt[IP].src, self.pg0.local_ip4)
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if not local_only:
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if not mcast_pkt:
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self.assertEqual(pkt[IP].dst, self.pg0.remote_ip4)
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else:
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self.assertEqual(pkt[IP].dst, type(self).mcast_ip4)
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# Verify UDP destination port is VXLAN-GPE 4790, source UDP port
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# could be arbitrary.
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self.assertEqual(pkt[UDP].dport, self.dport)
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# Verify UDP checksum
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self.assert_udp_checksum_valid(pkt)
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# Verify VNI
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self.assertEqual(pkt[VXLAN].vni, vni)
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@classmethod
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def create_vxlan_gpe_flood_test_bd(cls, vni, n_ucast_tunnels, port):
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# Create 10 ucast vxlan tunnels under bd
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ip_range_start = 10
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ip_range_end = ip_range_start + n_ucast_tunnels
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next_hop_address = cls.pg0.remote_ip4
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for dest_ip4 in ip4_range(next_hop_address, ip_range_start, ip_range_end):
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# add host route so dest_ip4n will not be resolved
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rip = VppIpRoute(
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cls,
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dest_ip4,
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32,
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[VppRoutePath(next_hop_address, INVALID_INDEX)],
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register=False,
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)
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rip.add_vpp_config()
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r = VppVxlanGpeTunnel(
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cls,
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src_addr=cls.pg0.local_ip4,
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dst_addr=dest_ip4,
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src_port=port,
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dst_port=port,
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vni=vni,
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)
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r.add_vpp_config()
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cls.vapi.sw_interface_set_l2_bridge(rx_sw_if_index=r.sw_if_index, bd_id=vni)
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@classmethod
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def add_del_shared_mcast_dst_load(cls, port, is_add):
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"""
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add or del tunnels sharing the same mcast dst
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to test vxlan_gpe ref_count mechanism
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"""
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n_shared_dst_tunnels = 20
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vni_start = 1000
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vni_end = vni_start + n_shared_dst_tunnels
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for vni in range(vni_start, vni_end):
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r = VppVxlanGpeTunnel(
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cls,
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src_addr=cls.pg0.local_ip4,
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dst_addr=cls.mcast_ip4,
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src_port=port,
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dst_port=port,
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mcast_sw_if_index=1,
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vni=vni,
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)
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if is_add:
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r.add_vpp_config()
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if r.sw_if_index == 0xFFFFFFFF:
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raise ValueError("bad sw_if_index: ~0")
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else:
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r.remove_vpp_config()
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@classmethod
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def add_shared_mcast_dst_load(cls, port):
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cls.add_del_shared_mcast_dst_load(port=port, is_add=1)
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@classmethod
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def del_shared_mcast_dst_load(cls, port):
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cls.add_del_shared_mcast_dst_load(port=port, is_add=0)
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@classmethod
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def add_del_mcast_tunnels_load(cls, port, is_add):
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"""
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add or del tunnels to test vxlan_gpe stability
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"""
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n_distinct_dst_tunnels = 20
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ip_range_start = 10
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ip_range_end = ip_range_start + n_distinct_dst_tunnels
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for dest_ip4 in ip4_range(cls.mcast_ip4, ip_range_start, ip_range_end):
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vni = int(dest_ip4.split(".")[3])
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r = VppVxlanGpeTunnel(
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cls,
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src_addr=cls.pg0.local_ip4,
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dst_addr=dest_ip4,
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src_port=port,
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dst_port=port,
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mcast_sw_if_index=1,
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vni=vni,
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)
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if is_add:
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r.add_vpp_config()
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else:
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r.remove_vpp_config()
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@classmethod
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def add_mcast_tunnels_load(cls, port):
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cls.add_del_mcast_tunnels_load(port=port, is_add=1)
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@classmethod
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def del_mcast_tunnels_load(cls, port):
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cls.add_del_mcast_tunnels_load(port=port, is_add=0)
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# Class method to start the VXLAN-GPE test case.
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# Overrides setUpClass method in VppTestCase class.
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# Python try..except statement is used to ensure that the tear down of
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# the class will be executed even if exception is raised.
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# @param cls The class pointer.
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@classmethod
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def setUpClass(cls):
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super(TestVxlanGpe, cls).setUpClass()
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try:
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cls.flags = 0x0C
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# Create 2 pg interfaces.
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cls.create_pg_interfaces(range(4))
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for pg in cls.pg_interfaces:
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pg.admin_up()
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# Configure IPv4 addresses on VPP pg0.
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cls.pg0.config_ip4()
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# Resolve MAC address for VPP's IP address on pg0.
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cls.pg0.resolve_arp()
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# Our Multicast address
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cls.mcast_ip4 = "239.1.1.1"
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cls.mcast_mac = util.mcast_ip_to_mac(cls.mcast_ip4)
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except Exception:
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cls.tearDownClass()
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raise
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@classmethod
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def tearDownClass(cls):
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super(TestVxlanGpe, cls).tearDownClass()
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def setUp(self):
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super(TestVxlanGpe, self).setUp()
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def createVxLANInterfaces(self, port=4790):
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# Create VXLAN-GPE VTEP on VPP pg0, and put vxlan_gpe_tunnel0
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# and pg1 into BD.
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self.dport = port
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self.single_tunnel_vni = 0xABCDE
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self.single_tunnel_bd = 11
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r = VppVxlanGpeTunnel(
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self,
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src_addr=self.pg0.local_ip4,
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dst_addr=self.pg0.remote_ip4,
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src_port=port,
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dst_port=port,
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vni=self.single_tunnel_vni,
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)
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r.add_vpp_config()
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self.vapi.sw_interface_set_l2_bridge(
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rx_sw_if_index=r.sw_if_index, bd_id=self.single_tunnel_bd
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)
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self.vapi.sw_interface_set_l2_bridge(
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rx_sw_if_index=self.pg1.sw_if_index, bd_id=self.single_tunnel_bd
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)
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# Setup vni 2 to test multicast flooding
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self.n_ucast_tunnels = 10
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self.mcast_flood_bd = 12
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self.create_vxlan_gpe_flood_test_bd(
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self.mcast_flood_bd, self.n_ucast_tunnels, self.dport
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)
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r = VppVxlanGpeTunnel(
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self,
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src_addr=self.pg0.local_ip4,
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dst_addr=self.mcast_ip4,
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src_port=port,
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dst_port=port,
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mcast_sw_if_index=1,
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vni=self.mcast_flood_bd,
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)
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r.add_vpp_config()
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self.vapi.sw_interface_set_l2_bridge(
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rx_sw_if_index=r.sw_if_index, bd_id=self.mcast_flood_bd
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)
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self.vapi.sw_interface_set_l2_bridge(
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rx_sw_if_index=self.pg2.sw_if_index, bd_id=self.mcast_flood_bd
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)
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# Add and delete mcast tunnels to check stability
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self.add_shared_mcast_dst_load(self.dport)
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self.add_mcast_tunnels_load(self.dport)
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self.del_shared_mcast_dst_load(self.dport)
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self.del_mcast_tunnels_load(self.dport)
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# Setup vni 3 to test unicast flooding
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self.ucast_flood_bd = 13
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self.create_vxlan_gpe_flood_test_bd(
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self.ucast_flood_bd, self.n_ucast_tunnels, self.dport
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)
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self.vapi.sw_interface_set_l2_bridge(
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rx_sw_if_index=self.pg3.sw_if_index, bd_id=self.ucast_flood_bd
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)
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# Set scapy listen custom port for VxLAN
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bind_layers(UDP, VXLAN, dport=self.dport)
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"""
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Tests with default port (4790)
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"""
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def test_decap(self):
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"""Decapsulation test
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from BridgeDoman
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"""
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self.createVxLANInterfaces()
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super(TestVxlanGpe, self).test_decap()
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def test_encap(self):
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"""Encapsulation test
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from BridgeDoman
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"""
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self.createVxLANInterfaces()
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super(TestVxlanGpe, self).test_encap()
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def test_ucast_flood(self):
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"""Unicast flood test
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from BridgeDoman
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"""
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self.createVxLANInterfaces()
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super(TestVxlanGpe, self).test_ucast_flood()
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"""
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Tests with custom port (1112)
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"""
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def test_decap_custom_port(self):
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"""Decapsulation test custom port
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from BridgeDoman
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"""
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self.createVxLANInterfaces(1112)
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super(TestVxlanGpe, self).test_decap()
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def test_encap_custom_port(self):
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"""Encapsulation test custom port
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from BridgeDoman
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"""
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self.createVxLANInterfaces(1112)
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super(TestVxlanGpe, self).test_encap()
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def test_ucast_flood_custom_port(self):
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"""Unicast flood test custom port
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from BridgeDoman
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"""
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self.createVxLANInterfaces(1112)
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super(TestVxlanGpe, self).test_ucast_flood()
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@unittest.skip("test disabled for vxlan-gpe")
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def test_mcast_flood(self):
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"""inherited from BridgeDomain"""
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pass
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@unittest.skip("test disabled for vxlan-gpe")
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def test_mcast_rcv(self):
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"""inherited from BridgeDomain"""
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pass
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# Method to define VPP actions before tear down of the test case.
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# Overrides tearDown method in VppTestCase class.
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# @param self The object pointer.
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def tearDown(self):
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super(TestVxlanGpe, self).tearDown()
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def show_commands_at_teardown(self):
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self.logger.info(self.vapi.cli("show bridge-domain 11 detail"))
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self.logger.info(self.vapi.cli("show bridge-domain 12 detail"))
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self.logger.info(self.vapi.cli("show bridge-domain 13 detail"))
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self.logger.info(self.vapi.cli("show int"))
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self.logger.info(self.vapi.cli("show vxlan-gpe"))
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self.logger.info(self.vapi.cli("show trace"))
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if __name__ == "__main__":
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unittest.main(testRunner=VppTestRunner)
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