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>
244 lines
8.4 KiB
Python
244 lines
8.4 KiB
Python
#!/usr/bin/env python3
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import unittest
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import random
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from scapy.packet import Raw
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from scapy.layers.l2 import Ether
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from scapy.layers.inet import IP, UDP
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from framework import VppTestCase
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from asfframework import VppTestRunner
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from util import Host, ppp
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class TestL2xc(VppTestCase):
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"""L2XC Test Case"""
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@classmethod
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def setUpClass(cls):
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"""
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Perform standard class setup (defined by class method setUpClass in
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class VppTestCase) before running the test case, set test case related
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variables and configure VPP.
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:var int hosts_nr: Number of hosts to be created.
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:var int dl_pkts_per_burst: Number of packets in burst for dual-loop
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test.
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:var int sl_pkts_per_burst: Number of packets in burst for single-loop
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test.
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"""
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super(TestL2xc, cls).setUpClass()
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# Test variables
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cls.hosts_nr = 10
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cls.dl_pkts_per_burst = 257
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cls.sl_pkts_per_burst = 2
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try:
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# create 4 pg interfaces
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cls.create_pg_interfaces(range(4))
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# packet flows mapping pg0 -> pg1, pg2 -> pg3, etc.
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cls.flows = dict()
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cls.flows[cls.pg0] = [cls.pg1]
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cls.flows[cls.pg1] = [cls.pg0]
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cls.flows[cls.pg2] = [cls.pg3]
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cls.flows[cls.pg3] = [cls.pg2]
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# packet sizes
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cls.pg_if_packet_sizes = [64, 512, 1518, 9018]
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cls.interfaces = list(cls.pg_interfaces)
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# Create bi-directional cross-connects between pg0 and pg1
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cls.vapi.sw_interface_set_l2_xconnect(
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cls.pg0.sw_if_index, cls.pg1.sw_if_index, enable=1
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)
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cls.vapi.sw_interface_set_l2_xconnect(
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cls.pg1.sw_if_index, cls.pg0.sw_if_index, enable=1
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)
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# Create bi-directional cross-connects between pg2 and pg3
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cls.vapi.sw_interface_set_l2_xconnect(
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cls.pg2.sw_if_index, cls.pg3.sw_if_index, enable=1
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)
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cls.vapi.sw_interface_set_l2_xconnect(
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cls.pg3.sw_if_index, cls.pg2.sw_if_index, enable=1
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)
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# mapping between packet-generator index and lists of test hosts
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cls.hosts_by_pg_idx = dict()
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# Create host MAC and IPv4 lists
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cls.create_host_lists(cls.hosts_nr)
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# setup all interfaces
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for i in cls.interfaces:
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i.admin_up()
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except Exception:
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super(TestL2xc, cls).tearDownClass()
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raise
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@classmethod
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def tearDownClass(cls):
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super(TestL2xc, cls).tearDownClass()
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def setUp(self):
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super(TestL2xc, self).setUp()
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self.reset_packet_infos()
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def tearDown(self):
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"""
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Show various debug prints after each test.
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"""
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super(TestL2xc, self).tearDown()
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def show_commands_at_teardown(self):
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self.logger.info(self.vapi.ppcli("show l2patch"))
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@classmethod
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def create_host_lists(cls, count):
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"""
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Method to create required number of MAC and IPv4 addresses.
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Create required number of host MAC addresses and distribute them among
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interfaces. Create host IPv4 address for every host MAC address too.
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:param count: Number of hosts to create MAC and IPv4 addresses for.
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"""
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for pg_if in cls.pg_interfaces:
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cls.hosts_by_pg_idx[pg_if.sw_if_index] = []
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hosts = cls.hosts_by_pg_idx[pg_if.sw_if_index]
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for j in range(0, count):
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host = Host(
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"00:00:00:ff:%02x:%02x" % (pg_if.sw_if_index, j),
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"172.17.1%02x.%u" % (pg_if.sw_if_index, j),
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)
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hosts.append(host)
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def create_stream(self, src_if, packet_sizes, packets_per_burst):
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"""
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Create input packet stream for defined interface.
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:param object src_if: Interface to create packet stream for.
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:param list packet_sizes: List of required packet sizes.
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:param int packets_per_burst: Number of packets in burst.
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:return: Stream of packets.
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"""
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pkts = []
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for i in range(0, packets_per_burst):
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dst_if = self.flows[src_if][0]
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dst_host = random.choice(self.hosts_by_pg_idx[dst_if.sw_if_index])
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src_host = random.choice(self.hosts_by_pg_idx[src_if.sw_if_index])
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pkt_info = self.create_packet_info(src_if, dst_if)
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payload = self.info_to_payload(pkt_info)
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p = (
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Ether(dst=dst_host.mac, src=src_host.mac)
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/ IP(src=src_host.ip4, dst=dst_host.ip4)
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/ UDP(sport=1234, dport=1234)
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/ Raw(payload)
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)
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pkt_info.data = p.copy()
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size = random.choice(packet_sizes)
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self.extend_packet(p, size)
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pkts.append(p)
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return pkts
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def verify_capture(self, pg_if, capture):
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"""
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Verify captured input packet stream for defined interface.
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:param object pg_if: Interface to verify captured packet stream for.
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:param list capture: Captured packet stream.
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"""
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last_info = dict()
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for i in self.interfaces:
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last_info[i.sw_if_index] = None
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dst_sw_if_index = pg_if.sw_if_index
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for packet in capture:
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try:
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ip = packet[IP]
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udp = packet[UDP]
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payload_info = self.payload_to_info(packet[Raw])
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packet_index = payload_info.index
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self.assertEqual(payload_info.dst, dst_sw_if_index)
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self.logger.debug(
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"Got packet on port %s: src=%u (id=%u)"
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% (pg_if.name, payload_info.src, packet_index)
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)
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next_info = self.get_next_packet_info_for_interface2(
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payload_info.src, dst_sw_if_index, last_info[payload_info.src]
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)
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last_info[payload_info.src] = next_info
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self.assertTrue(next_info is not None)
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self.assertEqual(packet_index, next_info.index)
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saved_packet = next_info.data
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# Check standard fields
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self.assertEqual(ip.src, saved_packet[IP].src)
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self.assertEqual(ip.dst, saved_packet[IP].dst)
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self.assertEqual(udp.sport, saved_packet[UDP].sport)
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self.assertEqual(udp.dport, saved_packet[UDP].dport)
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except:
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self.logger.error(ppp("Unexpected or invalid packet:", packet))
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raise
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for i in self.interfaces:
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remaining_packet = self.get_next_packet_info_for_interface2(
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i, dst_sw_if_index, last_info[i.sw_if_index]
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)
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self.assertTrue(
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remaining_packet is None,
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"Port %u: Packet expected from source %u didn't"
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" arrive" % (dst_sw_if_index, i.sw_if_index),
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)
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def run_l2xc_test(self, pkts_per_burst):
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"""L2XC test"""
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# Create incoming packet streams for packet-generator interfaces
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for i in self.interfaces:
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pkts = self.create_stream(i, self.pg_if_packet_sizes, pkts_per_burst)
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i.add_stream(pkts)
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# Enable packet capturing and start packet sending
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self.pg_enable_capture(self.pg_interfaces)
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self.pg_start()
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# Verify outgoing packet streams per packet-generator interface
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for i in self.pg_interfaces:
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capture = i.get_capture()
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self.logger.info("Verifying capture on interface %s" % i.name)
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self.verify_capture(i, capture)
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def test_l2xc_sl(self):
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"""L2XC single-loop test
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Test scenario:
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1. config
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2 pairs of 2 interfaces, l2xconnected
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2. sending l2 eth packets between 4 interfaces
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64B, 512B, 1518B, 9018B (ether_size)
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burst of 2 packets per interface
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"""
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self.run_l2xc_test(self.sl_pkts_per_burst)
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def test_l2xc_dl(self):
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"""L2XC dual-loop test
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Test scenario:
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1. config
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2 pairs of 2 interfaces, l2xconnected
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2. sending l2 eth packets between 4 interfaces
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64B, 512B, 1518B, 9018B (ether_size)
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burst of 257 packets per interface
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"""
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self.run_l2xc_test(self.dl_pkts_per_burst)
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if __name__ == "__main__":
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unittest.main(testRunner=VppTestRunner)
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