#!/usr/bin/env python3 import unittest import random from scapy.packet import Raw from scapy.layers.l2 import Ether, Dot1Q from scapy.layers.inet import IP, UDP from util import Host from framework import VppTestCase, VppTestRunner from vpp_sub_interface import L2_VTR_OP, VppDot1QSubint, VppDot1ADSubint from collections import namedtuple Tag = namedtuple("Tag", ["dot1", "vlan"]) DOT1AD = 0x88A8 DOT1Q = 0x8100 class TestVtr(VppTestCase): """VTR Test Case""" @classmethod def setUpClass(cls): super(TestVtr, cls).setUpClass() # Test variables cls.bd_id = 1 cls.mac_entries_count = 5 cls.Atag = 100 cls.Btag = 200 cls.dot1ad_sub_id = 20 try: ifs = range(3) cls.create_pg_interfaces(ifs) cls.sub_interfaces = [ VppDot1ADSubint(cls, cls.pg1, cls.dot1ad_sub_id, cls.Btag, cls.Atag), VppDot1QSubint(cls, cls.pg2, cls.Btag), ] interfaces = list(cls.pg_interfaces) interfaces.extend(cls.sub_interfaces) # Create BD with MAC learning enabled and put interfaces and # sub-interfaces to this BD for pg_if in cls.pg_interfaces: sw_if_index = ( pg_if.sub_if.sw_if_index if hasattr(pg_if, "sub_if") else pg_if.sw_if_index ) cls.vapi.sw_interface_set_l2_bridge( rx_sw_if_index=sw_if_index, bd_id=cls.bd_id ) # setup all interfaces for i in interfaces: i.admin_up() # mapping between packet-generator index and lists of test hosts cls.hosts_by_pg_idx = dict() # create test host entries and inject packets to learn MAC entries # in the bridge-domain cls.create_hosts_and_learn(cls.mac_entries_count) cls.logger.info(cls.vapi.ppcli("show l2fib")) except Exception: super(TestVtr, cls).tearDownClass() raise @classmethod def tearDownClass(cls): super(TestVtr, cls).tearDownClass() def setUp(self): """ Clear trace and packet infos before running each test. """ super(TestVtr, self).setUp() self.reset_packet_infos() def tearDown(self): """ Show various debug prints after each test. """ super(TestVtr, self).tearDown() def show_commands_at_teardown(self): self.logger.info(self.vapi.ppcli("show l2fib verbose")) self.logger.info(self.vapi.ppcli("show bridge-domain %s detail" % self.bd_id)) @classmethod def create_hosts_and_learn(cls, count): for pg_if in cls.pg_interfaces: cls.hosts_by_pg_idx[pg_if.sw_if_index] = [] hosts = cls.hosts_by_pg_idx[pg_if.sw_if_index] packets = [] for j in range(1, count + 1): host = Host( "00:00:00:ff:%02x:%02x" % (pg_if.sw_if_index, j), "172.17.1%02x.%u" % (pg_if.sw_if_index, j), ) packet = Ether(dst="ff:ff:ff:ff:ff:ff", src=host.mac) hosts.append(host) if hasattr(pg_if, "sub_if"): packet = pg_if.sub_if.add_dot1_layer(packet) packets.append(packet) pg_if.add_stream(packets) cls.logger.info("Sending broadcast eth frames for MAC learning") cls.pg_enable_capture(cls.pg_interfaces) cls.pg_start() def create_packet(self, src_if, dst_if, do_dot1=True): packet_sizes = [64, 512, 1518, 9018] dst_host = random.choice(self.hosts_by_pg_idx[dst_if.sw_if_index]) src_host = random.choice(self.hosts_by_pg_idx[src_if.sw_if_index]) pkt_info = self.create_packet_info(src_if, dst_if) payload = self.info_to_payload(pkt_info) p = ( Ether(dst=dst_host.mac, src=src_host.mac) / IP(src=src_host.ip4, dst=dst_host.ip4) / UDP(sport=1234, dport=1234) / Raw(payload) ) pkt_info.data = p.copy() if do_dot1 and hasattr(src_if, "sub_if"): p = src_if.sub_if.add_dot1_layer(p) size = random.choice(packet_sizes) self.extend_packet(p, size) return p def _add_tag(self, packet, vlan, tag_type): payload = packet.payload inner_type = packet.type packet.remove_payload() packet.add_payload(Dot1Q(vlan=vlan) / payload) packet.payload.type = inner_type packet.payload.vlan = vlan packet.type = tag_type return packet def _remove_tag(self, packet, vlan=None, tag_type=None): if tag_type: self.assertEqual(packet.type, tag_type) payload = packet.payload if vlan: self.assertEqual(payload.vlan, vlan) inner_type = payload.type payload = payload.payload packet.remove_payload(
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name: Binary API library
maintainer:
  - D