d9b0c6fbf7
Drop pycodestyle for code style checking in favor of black. Black is much faster, stable PEP8 compliant code style checker offering also automatic formatting. It aims to be very stable and produce smallest diffs. It's used by many small and big projects. Running checkstyle with black takes a few seconds with a terse output. Thus, test-checkstyle-diff is no longer necessary. Expand scope of checkstyle to all python files in the repo, replacing test-checkstyle with checkstyle-python. Also, fixstyle-python is now available for automatic style formatting. Note: python virtualenv has been consolidated in test/Makefile, test/requirements*.txt which will eventually be moved to a central location. This is required to simply the automated generation of docker executor images in the CI. Type: improvement Change-Id: I022a326603485f58585e879ac0f697fceefbc9c8 Signed-off-by: Klement Sekera <klement.sekera@gmail.com> Signed-off-by: Dave Wallace <dwallacelf@gmail.com>
610 lines
20 KiB
Python
610 lines
20 KiB
Python
#!/usr/bin/env python3
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"""L2 FIB Test Case HLD:
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**config 1**
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- add 4 pg-l2 interfaces
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- configure them into l2bd
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- configure 100 MAC entries in L2 fib - 25 MACs per interface
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- L2 MAC learning and unknown unicast flooding disabled in l2bd
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- configure 100 MAC entries in L2 fib - 25 MACs per interface
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**test 1**
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- send L2 MAC frames between all 4 pg-l2 interfaces for all of 100 MAC \
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entries in the FIB
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**verify 1**
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- all packets received correctly
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**config 2**
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- delete 12 MAC entries - 3 MACs per interface
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**test 2a**
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- send L2 MAC frames between all 4 pg-l2 interfaces for non-deleted MAC \
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entries
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**verify 2a**
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- all packets received correctly
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**test 2b**
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- send L2 MAC frames between all 4 pg-l2 interfaces for all of 12 deleted \
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MAC entries
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**verify 2b**
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- no packet received on all 4 pg-l2 interfaces
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**config 3**
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- configure new 100 MAC entries in L2 fib - 25 MACs per interface
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**test 3**
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- send L2 MAC frames between all 4 pg-l2 interfaces for all of 188 MAC \
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entries in the FIB
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**verify 3**
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- all packets received correctly
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**config 4**
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- delete 160 MAC entries, 40 MACs per interface
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**test 4a**
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- send L2 MAC frames between all 4 pg-l2 interfaces for all of 28 \
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non-deleted MAC entries
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**verify 4a**
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- all packets received correctly
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**test 4b**
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- try send L2 MAC frames between all 4 pg-l2 interfaces for all of 172 \
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deleted MAC entries
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**verify 4b**
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- no packet received on all 4 pg-l2 interfaces
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"""
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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, VppTestRunner
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from util import Host, ppp
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from vpp_papi import mac_pton, VppEnum
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class TestL2fib(VppTestCase):
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"""L2 FIB Test Case"""
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@classmethod
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def bd_ifs(cls, bd_id):
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return range((bd_id - 1) * cls.n_ifs_per_bd, bd_id * cls.n_ifs_per_bd - 1)
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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 bd_id: Bridge domain ID.
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"""
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super(TestL2fib, cls).setUpClass()
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try:
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n_brs = cls.n_brs = range(1, 3)
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cls.n_ifs_per_bd = 4
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n_ifs = range(cls.n_ifs_per_bd * len(cls.n_brs))
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# Create pg interfaces
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cls.create_pg_interfaces(n_ifs)
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cls.flows = dict()
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for bd_id in n_brs:
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# Packet flows mapping pg0 -> pg1, pg2, pg3 etc.
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ifs = cls.bd_ifs(bd_id)
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for j in ifs:
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cls.flows[cls.pg_interfaces[j]] = [
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cls.pg_interfaces[x] for x in ifs if x != j
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]
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# Packet sizes
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cls.pg_if_packet_sizes = [64, 512, 1518, 9018]
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for bd_id in n_brs:
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# Create BD with MAC learning and unknown unicast flooding
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# disabled and put interfaces to this BD
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cls.vapi.bridge_domain_add_del(bd_id=bd_id, uu_flood=0, learn=0)
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ifs = [cls.pg_interfaces[i] for i in cls.bd_ifs(bd_id)]
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for pg_if in ifs:
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cls.vapi.sw_interface_set_l2_bridge(
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rx_sw_if_index=pg_if.sw_if_index, bd_id=bd_id
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)
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# Set up all interfaces
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for i in cls.pg_interfaces:
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i.admin_up()
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except Exception:
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super(TestL2fib, cls).tearDownClass()
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raise
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@classmethod
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def tearDownClass(cls):
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super(TestL2fib, cls).tearDownClass()
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def setUp(self):
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super(TestL2fib, 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(TestL2fib, self).tearDown()
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if not self.vpp_dead:
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for bd_id in self.n_brs:
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self.logger.info(
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self.vapi.ppcli("show bridge-domain %s detail" % bd_id)
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)
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def show_commands_at_teardown(self):
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self.logger.info(self.vapi.ppcli("show l2fib verbose"))
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def create_hosts(self, n_hosts_per_if, subnet):
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"""
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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.
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:param int n_hosts_per_if: Number of per interface hosts to
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create MAC/IPv4 addresses for.
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"""
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hosts = dict()
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for pg_if in self.pg_interfaces:
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swif = pg_if.sw_if_index
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def mac(j):
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return "00:00:%02x:ff:%02x:%02x" % (subnet, swif, j)
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def ip(j):
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return "172.%02u.1%02x.%u" % (subnet, swif, j)
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def h(j):
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return Host(mac(j), ip(j))
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hosts[swif] = [h(j) for j in range(n_hosts_per_if)]
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return hosts
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def split_hosts(self, hosts, n):
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splits = dict()
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for pg_if in self.pg_interfaces:
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swif = pg_if.sw_if_index
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splits[swif] = hosts[swif][:n]
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hosts[swif] = hosts[swif][n:]
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return splits
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def learn_hosts(self, bd_id, hosts):
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"""
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Create and send per interface L2 MAC broadcast packet stream to
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let the bridge domain learn these MAC addresses.
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:param int bd_id: BD to teach
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:param dict hosts: dict of hosts per interface
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"""
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self.vapi.bridge_flags(bd_id=bd_id, is_set=1, flags=1)
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ifs = [self.pg_interfaces[i] for i in self.bd_ifs(bd_id)]
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for pg_if in ifs:
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swif = pg_if.sw_if_index
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packets = [
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Ether(dst="ff:ff:ff:ff:ff:ff", src=host.mac) for host in hosts[swif]
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]
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pg_if.add_stream(packets)
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self.logger.info("Sending broadcast eth frames for MAC learning")
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self.pg_start()
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def config_l2_fib_entries(self, bd_id, hosts):
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"""
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Config required number of L2 FIB entries.
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:param int bd_id: BD's id
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:param int count: Number of L2 FIB entries to be created.
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:param int start: Starting index of the host list. (Default value = 0)
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"""
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ifs = [self.pg_interfaces[i] for i in self.bd_ifs(bd_id)]
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for pg_if in ifs:
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swif = pg_if.sw_if_index
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for host in hosts[swif]:
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self.vapi.l2fib_add_del(mac_pton(host.mac), bd_id, swif, static_mac=1)
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def delete_l2_fib_entry(self, bd_id, hosts):
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"""
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Delete required number of L2 FIB entries.
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:param int count: Number of L2 FIB entries to be created.
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"""
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ifs = [self.pg_interfaces[i] for i in self.bd_ifs(bd_id)]
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for pg_if in ifs:
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swif = pg_if.sw_if_index
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for host in hosts[swif]:
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self.vapi.l2fib_add_del(mac_pton(host.mac), bd_id, swif, is_add=0)
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def flush_int(self, swif, learned_hosts):
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"""
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Flush swif L2 FIB entries.
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:param int swif: sw if index.
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"""
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flushed = dict()
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self.vapi.l2fib_flush_int(swif)
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flushed[swif] = learned_hosts[swif]
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learned_hosts[swif] = []
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return flushed
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def flush_bd(self, bd_id, learned_hosts):
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"""
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Flush bd_id L2 FIB entries.
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:param int bd_id: Bridge Domain id.
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"""
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self.vapi.l2fib_flush_bd(bd_id)
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flushed = dict()
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ifs = [self.pg_interfaces[i] for i in self.bd_ifs(bd_id)]
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for pg_if in ifs:
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swif = pg_if.sw_if_index
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flushed[swif] = learned_hosts[swif]
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learned_hosts[swif] = []
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return flushed
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def flush_all(self):
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"""
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Flush All L2 FIB entries.
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"""
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self.vapi.l2fib_flush_all()
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def create_stream(self, src_if, packet_sizes, if_src_hosts, if_dst_hosts):
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"""
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Create input packet stream for defined interface using hosts or
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deleted_hosts list.
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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 boolean deleted: Set to True if deleted_hosts list required.
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:return: Stream of packets.
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"""
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src_hosts = if_src_hosts[src_if.sw_if_index]
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if not src_hosts:
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return []
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pkts = []
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for dst_if in self.flows[src_if]:
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dst_swif = dst_if.sw_if_index
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if dst_swif not in if_dst_hosts:
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continue
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dst_hosts = if_dst_hosts[dst_swif]
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for dst_host in dst_hosts:
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src_host = random.choice(src_hosts)
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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.pg_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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payload_info = self.payload_to_info(packet[Raw])
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try:
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ip = packet[IP]
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udp = packet[UDP]
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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 BaseException:
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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.pg_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 arrive"
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% (dst_sw_if_index, i.sw_if_index),
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)
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def run_verify_test(self, bd_id, src_hosts, dst_hosts):
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# Test
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# Create incoming packet streams for packet-generator interfaces
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self.reset_packet_infos()
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ifs = [self.pg_interfaces[i] for i in self.bd_ifs(bd_id)]
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for i in ifs:
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pkts = self.create_stream(
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i,
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self.pg_if_packet_sizes,
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if_src_hosts=src_hosts,
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if_dst_hosts=dst_hosts,
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)
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if pkts:
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i.add_stream(pkts)
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self.vapi.bridge_flags(bd_id=bd_id, is_set=0, flags=1)
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# Enable packet capture and start packet sending
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self.pg_enable_capture(ifs)
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self.pg_start()
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# Verify
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# Verify outgoing packet streams per packet-generator interface
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for i in ifs:
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if not dst_hosts[i.sw_if_index]:
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continue
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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 run_verify_negat_test(self, bd_id, src_hosts, dst_hosts):
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# Test
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# Create incoming packet streams for packet-generator interfaces for
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# deleted MAC addresses
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self.reset_packet_infos()
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ifs = [self.pg_interfaces[i] for i in self.bd_ifs(bd_id)]
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for i in ifs:
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pkts = self.create_stream(
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i,
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self.pg_if_packet_sizes,
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if_src_hosts=src_hosts,
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if_dst_hosts=dst_hosts,
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)
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if pkts:
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i.add_stream(pkts)
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self.vapi.bridge_flags(bd_id=bd_id, is_set=0, flags=1)
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# Enable packet capture and start packet sending
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self.pg_enable_capture(ifs)
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self.pg_start()
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# Verify
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# Verify outgoing packet streams per packet-generator interface
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timeout = 1
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for i in ifs:
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i.get_capture(0, timeout=timeout)
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i.assert_nothing_captured(remark="outgoing interface")
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timeout = 0.1
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def test_l2_fib_program100(self):
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"""L2 FIB - program 100 MACs"""
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bd_id = 1
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hosts = self.create_hosts(100, subnet=17)
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self.config_l2_fib_entries(bd_id, hosts)
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self.run_verify_test(bd_id, hosts, hosts)
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def test_l2_fib_program100_delete12(self):
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"""L2 FIB - program 100, delete 12 MACs"""
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bd_id = 1
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hosts = self.create_hosts(100, subnet=17)
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self.config_l2_fib_entries(bd_id, hosts)
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del_hosts = self.split_hosts(hosts, 12)
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self.delete_l2_fib_entry(bd_id, del_hosts)
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self.run_verify_test(bd_id, hosts, hosts)
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self.run_verify_negat_test(bd_id, hosts, del_hosts)
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def test_l2_fib_program100_add100(self):
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"""L2 FIB - program 100, add 100 MACs"""
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bd_id = 1
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hosts = self.create_hosts(100, subnet=17)
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self.config_l2_fib_entries(bd_id, hosts)
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hosts2 = self.create_hosts(100, subnet=22)
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self.config_l2_fib_entries(bd_id, hosts2)
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self.run_verify_test(bd_id, hosts, hosts2)
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def test_l2_fib_program10_learn10(self):
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"""L2 FIB - program 10 MACs, learn 10"""
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hosts = self.create_hosts(20, subnet=35)
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lhosts = self.split_hosts(hosts, 10)
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bd1 = 1
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bd2 = 2
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self.learn_hosts(bd1, lhosts)
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self.learn_hosts(bd2, lhosts)
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self.config_l2_fib_entries(bd1, hosts)
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self.config_l2_fib_entries(bd2, hosts)
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self.run_verify_test(bd1, lhosts, hosts)
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self.run_verify_test(bd2, lhosts, hosts)
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def test_l2_fib_flush_int(self):
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"""L2 FIB - flush interface"""
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hosts = self.create_hosts(20, subnet=36)
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lhosts = self.split_hosts(hosts, 10)
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bd1 = 1
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self.learn_hosts(bd1, lhosts)
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self.config_l2_fib_entries(bd1, hosts)
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self.run_verify_test(bd1, lhosts, hosts)
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flushed = self.flush_int(self.pg_interfaces[0].sw_if_index, lhosts)
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self.run_verify_test(bd1, hosts, lhosts)
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self.run_verify_negat_test(bd1, hosts, flushed)
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def test_l2_fib_flush_bd(self):
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"""L2 FIB - flush BD"""
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hosts = self.create_hosts(20, subnet=37)
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lhosts = self.split_hosts(hosts, 10)
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bd1 = 1
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self.learn_hosts(bd1, lhosts)
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self.config_l2_fib_entries(bd1, hosts)
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self.run_verify_test(bd1, lhosts, hosts)
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flushed = self.flush_bd(bd1, lhosts)
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self.run_verify_negat_test(bd1, hosts, flushed)
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def test_l2_fib_flush_all(self):
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"""L2 FIB - flush all"""
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hosts = self.create_hosts(20, subnet=38)
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lhosts = self.split_hosts(hosts, 10)
|
|
|
|
bd1 = 1
|
|
bd2 = 2
|
|
self.learn_hosts(bd1, lhosts)
|
|
self.learn_hosts(bd2, lhosts)
|
|
self.config_l2_fib_entries(bd1, hosts)
|
|
self.config_l2_fib_entries(bd2, hosts)
|
|
self.run_verify_test(bd1, hosts, lhosts)
|
|
self.run_verify_test(bd2, hosts, lhosts)
|
|
|
|
self.flush_all()
|
|
|
|
self.run_verify_negat_test(bd1, hosts, lhosts)
|
|
self.run_verify_negat_test(bd2, hosts, lhosts)
|
|
|
|
def test_l2_fib_mac_learn_evs(self):
|
|
"""L2 FIB - mac learning events"""
|
|
bd1 = 1
|
|
hosts = self.create_hosts(10, subnet=39)
|
|
|
|
self.vapi.want_l2_macs_events()
|
|
self.learn_hosts(bd1, hosts)
|
|
|
|
self.virtual_sleep(1)
|
|
self.logger.info(self.vapi.ppcli("show l2fib"))
|
|
evs = self.vapi.collect_events()
|
|
action = VppEnum.vl_api_mac_event_action_t.MAC_EVENT_ACTION_API_ADD
|
|
learned_macs = {
|
|
e.mac[i].mac_addr.packed
|
|
for e in evs
|
|
for i in range(e.n_macs)
|
|
if e.mac[i].action == action
|
|
}
|
|
macs = {
|
|
h.bin_mac
|
|
for swif in self.bd_ifs(bd1)
|
|
for h in hosts[self.pg_interfaces[swif].sw_if_index]
|
|
}
|
|
self.vapi.want_l2_macs_events(enable_disable=0)
|
|
self.assertEqual(len(learned_macs ^ macs), 0)
|
|
|
|
def test_l2_fib_mac_learn_evs2(self):
|
|
"""L2 FIB - mac learning events using want_l2_macs_events2"""
|
|
bd1 = 1
|
|
hosts = self.create_hosts(10, subnet=39)
|
|
|
|
self.vapi.l2fib_set_scan_delay(scan_delay=10)
|
|
self.vapi.want_l2_macs_events2()
|
|
self.sleep(1)
|
|
self.learn_hosts(bd1, hosts)
|
|
|
|
self.virtual_sleep(1)
|
|
self.logger.info(self.vapi.ppcli("show l2fib"))
|
|
evs = self.vapi.collect_events()
|
|
action = VppEnum.vl_api_mac_event_action_t.MAC_EVENT_ACTION_API_ADD
|
|
learned_macs = {
|
|
e.mac[i].mac_addr.packed
|
|
for e in evs
|
|
for i in range(e.n_macs)
|
|
if e.mac[i].action == action
|
|
}
|
|
macs = {
|
|
h.bin_mac
|
|
for swif in self.bd_ifs(bd1)
|
|
for h in hosts[self.pg_interfaces[swif].sw_if_index]
|
|
}
|
|
self.vapi.want_l2_macs_events2(enable_disable=0)
|
|
self.assertEqual(len(learned_macs ^ macs), 0)
|
|
|
|
def test_l2_fib_macs_learn_max(self):
|
|
"""L2 FIB - mac learning max macs in event"""
|
|
bd1 = 1
|
|
hosts = self.create_hosts(10, subnet=40)
|
|
|
|
ev_macs = 1
|
|
self.vapi.want_l2_macs_events(max_macs_in_event=ev_macs)
|
|
self.learn_hosts(bd1, hosts)
|
|
|
|
self.sleep(1)
|
|
self.logger.info(self.vapi.ppcli("show l2fib"))
|
|
evs = self.vapi.collect_events()
|
|
self.vapi.want_l2_macs_events(enable_disable=0)
|
|
|
|
self.assertGreater(len(evs), 0)
|
|
action = VppEnum.vl_api_mac_event_action_t.MAC_EVENT_ACTION_API_ADD
|
|
learned_macs = {
|
|
e.mac[i].mac_addr.packed
|
|
for e in evs
|
|
for i in range(e.n_macs)
|
|
if e.mac[i].action == action
|
|
}
|
|
macs = {
|
|
h.bin_mac
|
|
for swif in self.bd_ifs(bd1)
|
|
for h in hosts[self.pg_interfaces[swif].sw_if_index]
|
|
}
|
|
|
|
for e in evs:
|
|
self.assertLess(len(e), ev_macs * 10)
|
|
self.assertEqual(len(learned_macs ^ macs), 0)
|
|
|
|
def test_l2_fib_macs_learn_max2(self):
|
|
"""L2 FIB - mac learning max macs in event using want_l2_macs_events2"""
|
|
bd1 = 1
|
|
hosts = self.create_hosts(10, subnet=40)
|
|
|
|
ev_macs = 1
|
|
self.vapi.l2fib_set_scan_delay(scan_delay=10)
|
|
self.vapi.want_l2_macs_events2(max_macs_in_event=ev_macs)
|
|
self.sleep(1)
|
|
self.learn_hosts(bd1, hosts)
|
|
|
|
self.virtual_sleep(1)
|
|
self.logger.info(self.vapi.ppcli("show l2fib"))
|
|
evs = self.vapi.collect_events()
|
|
self.vapi.want_l2_macs_events2(enable_disable=0)
|
|
|
|
self.assertGreater(len(evs), 0)
|
|
action = VppEnum.vl_api_mac_event_action_t.MAC_EVENT_ACTION_API_ADD
|
|
learned_macs = {
|
|
e.mac[i].mac_addr.packed
|
|
for e in evs
|
|
for i in range(e.n_macs)
|
|
if e.mac[i].action == action
|
|
}
|
|
macs = {
|
|
h.bin_mac
|
|
for swif in self.bd_ifs(bd1)
|
|
for h in hosts[self.pg_interfaces[swif].sw_if_index]
|
|
}
|
|
|
|
for e in evs:
|
|
self.assertLess(len(e), ev_macs * 10)
|
|
self.assertEqual(len(learned_macs ^ macs), 0)
|
|
|
|
|
|
if __name__ == "__main__":
|
|
unittest.main(testRunner=VppTestRunner)
|