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#!/usr/bin/env python3

import unittest

from framework import VppTestCase, VppTestRunner, running_extended_tests
from framework import running_gcov_tests
from vpp_ip_route import VppIpTable, VppIpRoute, VppRoutePath


class TestVlib(VppTestCase):
    """ Vlib Unit Test Cases """
    worker_config = "workers 1"

    @classmethod
    def setUpClass(cls):
        super(TestVlib, cls).setUpClass()

    @classmethod
    def tearDownClass(cls):
        super(TestVlib, cls).tearDownClass()

    def setUp(self):
        super(TestVlib, self).setUp()

    def tearDown(self):
        super(TestVlib, self).tearDown()

    @unittest.skipUnless(running_gcov_tests, "part of code coverage tests")
    def test_vlib_main_unittest(self):
        """ Vlib main.c Code Coverage Test """

        cmds = ["loopback create",
                "packet-generator new {\n"
                " name vlib\n"
                " limit 15\n"
                " size 128-128\n"
                " interface loop0\n"
                " node ethernet-input\n"
                " data {\n"
                "   IP6: 00:d0:2d:5e:86:85 -> 00:0d:ea:d0:00:00\n"
                "   ICMP: db00::1 -> db00::2\n"
                "   incrementing 30\n"
                "   }\n"
                "}\n",
                "elog trace dispatch",
                "event-logger stop",
                "event-logger clear",
                "event-logger resize 102400",
                "event-logger restart",
                "pcap dispatch trace on max 100 buffer-trace pg-input 15",
                "set pmc instructions-per-clock",
                "pa en",
                "show event-log 100 all",
                "event-log save",
                "event-log save foo",
                "pcap dispatch trace",
                "pcap dispatch trace status",
                "pcap dispatch trace off",
                "show vlib frame-allocation",
                ]

        for cmd in cmds:
            r = self.vapi.cli_return_response(cmd)
            if r.retval != 0:
                if hasattr(r, 'reply'):
                    self.logger.info(cmd + " FAIL reply " + r.reply)
                else:
                    self.logger.info(cmd + " FAIL retval " + str(r.retval))

    @unittest.skipUnless(running_gcov_tests, "part of code coverage tests")
    def test_vlib_node_cli_unittest(self):
        """ Vlib node_cli.c Code Coverage Test """

        cmds = ["loopback create",
                "packet-generator new {\n"
                " name vlib\n"
                " limit 15\n"
                " size 128-128\n"
                " interface loop0\n"
                " node ethernet-input\n"
                " data {\n"
                "   IP6: 00:d0:2d:5e:86:85 -> 00:0d:ea:d0:00:00\n"
                "   ICMP: db00::1 -> db00::2\n"
                "   incrementing 30\n"
                "   }\n"
                "}\n",
                "show vlib graph",
                "show vlib graph ethernet-input",
                "show vlib graphviz",
                "show vlib graphviz graphviz.dot",
                "pa en",
                "show runtime ethernet-input",
                "show runtime brief verbose max summary",
                "clear runtime",
                "show node index 1",
                "show node ethernet-input",
                "show node pg-input",
                "set node function",
                "set node function no-such-node",
                "set node function cdp-input default",
                "set node function ethernet-input default",
                "set node function ethernet-input bozo",
                "set node function ethernet-input",
                "show \t",
                ]

        for cmd in cmds:
            r = self.vapi.cli_return_response(cmd)
            if r.retval != 0:
                if hasattr(r, 'reply'):
                    self.logger.info(cmd + " FAIL reply " + r.reply)
                else:
                    self.logger.info(cmd + " FAIL retval " + str(r.retval))

    @unittest.skipUnless(running_gcov_tests, "part of code coverage tests")
    def test_vlib_buffer_c_unittest(self):
        """ Vlib buffer.c Code Coverage Test """

        cmds = ["loopback create",
                "packet-generator new {\n"
                " name vlib\n"
                " limit 15\n"
                " size 128-128\n"
                " interface loop0\n"
                " node ethernet-input\n"
                " data {\n"
                "   IP6: 00:d0:2d:5e:86:85 -> 00:0d:ea:d0:00:00\n"
                "   ICMP: db00::1 -> db00::2\n"
                "   incrementing 30\n"
                "   }\n"
                "}\n",
                "elog trace",
                "elog trace enable",
                "elog trace api cli barrier",
                "pa en",
                "show interface bogus",
                "elog trace disable api cli barrier",
                "elog trace circuit-node ethernet-input",
                "elog trace circuit-node ethernet-input disable",
                "clear interfaces",
                "test vlib",
                "test vlib2",
                "show memory api-segment stats-segment main-heap verbose",
                "leak-check { show memory }",
                "show cpu",
                "memory-trace main-heap",
                "memory-trace main-heap api-segment stats-segment",
                "leak-check { show version }",
                "show version ?",
                "comment { show version }",
                "uncomment { show version }",
                "show memory main-heap",
                "show memory bogus",
                "choices",
                "test heap-validate",
                "memory-trace main-heap disable",
                "show buffers",
                "show eve",
                "show help",
                "show ip ",
                ]

        for cmd in cmds:
            r = self.vapi.cli_return_response(cmd)
            if r.retval != 0:
                if hasattr(r, 'reply'):
                    self.logger.info(cmd + " FAIL reply " + r.reply)
                else:
                    self.logger.info(cmd + " FAIL retval " + str(r.retval))

    @unittest.skipUnless(running_gcov_tests, "part of code coverage tests")
    def test_vlib_format_unittest(self):
        """ Vlib format.c Code Coverage Test """

        cmds = ["loopback create",
                "classify filter pcap mask l2 proto match l2 proto 0x86dd",
                "classify filter pcap del",
                "test format-vlib",
                ]

        for cmd in cmds:
            r = self.vapi.cli_return_response(cmd)
            if r.retval != 0:
                if hasattr(r, 'reply'):
                    self.logger.info(cmd + " FAIL reply " + r.reply)
                else:
                    self.logger.info(cmd + " FAIL retval " + str(r.retval))

if __name__ == '__main__':
    unittest.main(testRunner=VppTestRunner)
lass="n">vpp_dead: for bd_id in self.n_brs: self.logger.info(self.vapi.ppcli("show bridge-domain %s detail" % bd_id)) def show_commands_at_teardown(self): self.logger.info(self.vapi.ppcli("show l2fib verbose")) def create_hosts(self, n_hosts_per_if, subnet): """ Create required number of host MAC addresses and distribute them among interfaces. Create host IPv4 address for every host MAC address. :param int n_hosts_per_if: Number of per interface hosts to create MAC/IPv4 addresses for. """ hosts = dict() for pg_if in self.pg_interfaces: swif = pg_if.sw_if_index def mac(j): return "00:00:%02x:ff:%02x:%02x" % (subnet, swif, j) def ip(j): return "172.%02u.1%02x.%u" % (subnet, swif, j) def h(j): return Host(mac(j), ip(j)) hosts[swif] = [h(j) for j in range(n_hosts_per_if)] return hosts def split_hosts(self, hosts, n): splits = dict() for pg_if in self.pg_interfaces: swif = pg_if.sw_if_index splits[swif] = hosts[swif][:n] hosts[swif] = hosts[swif][n:] return splits def learn_hosts(self, bd_id, hosts): """ Create and send per interface L2 MAC broadcast packet stream to let the bridge domain learn these MAC addresses. :param int bd_id: BD to teach :param dict hosts: dict of hosts per interface """ self.vapi.bridge_flags(bd_id=bd_id, is_set=1, flags=1) ifs = [self.pg_interfaces[i] for i in self.bd_ifs(bd_id)] for pg_if in ifs: swif = pg_if.sw_if_index packets = [Ether(dst="ff:ff:ff:ff:ff:ff", src=host.mac) for host in hosts[swif]] pg_if.add_stream(packets) self.logger.info("Sending broadcast eth frames for MAC learning") self.pg_start() def config_l2_fib_entries(self, bd_id, hosts): """ Config required number of L2 FIB entries. :param int bd_id: BD's id :param int count: Number of L2 FIB entries to be created. :param int start: Starting index of the host list. (Default value = 0) """ ifs = [self.pg_interfaces[i] for i in self.bd_ifs(bd_id)] for pg_if in ifs: swif = pg_if.sw_if_index for host in hosts[swif]: self.vapi.l2fib_add_del( mac_pton(host.mac), bd_id, swif, static_mac=1) def delete_l2_fib_entry(self, bd_id, hosts): """ Delete required number of L2 FIB entries. :param int count: Number of L2 FIB entries to be created. """ ifs = [self.pg_interfaces[i] for i in self.bd_ifs(bd_id)] for pg_if in ifs: swif = pg_if.sw_if_index for host in hosts[swif]: self.vapi.l2fib_add_del( mac_pton(host.mac), bd_id, swif, is_add=0) def flush_int(self, swif, learned_hosts): """ Flush swif L2 FIB entries. :param int swif: sw if index. """ flushed = dict() self.vapi.l2fib_flush_int(swif) flushed[swif] = learned_hosts[swif] learned_hosts[swif] = [] return flushed def flush_bd(self, bd_id, learned_hosts): """ Flush bd_id L2 FIB entries. :param int bd_id: Bridge Domain id. """ self.vapi.l2fib_flush_bd(bd_id) flushed = dict() ifs = [self.pg_interfaces[i] for i in self.bd_ifs(bd_id)] for pg_if in ifs: swif = pg_if.sw_if_index flushed[swif] = learned_hosts[swif] learned_hosts[swif] = [] return flushed def flush_all(self): """ Flush All L2 FIB entries. """ self.vapi.l2fib_flush_all() def create_stream(self, src_if, packet_sizes, if_src_hosts, if_dst_hosts): """ Create input packet stream for defined interface using hosts or deleted_hosts list. :param object src_if: Interface to create packet stream for. :param list packet_sizes: List of required packet sizes. :param boolean deleted: Set to True if deleted_hosts list required. :return: Stream of packets. """ src_hosts = if_src_hosts[src_if.sw_if_index] if not src_hosts: return [] pkts = [] for dst_if in self.flows[src_if]: dst_swif = dst_if.sw_if_index if dst_swif not in if_dst_hosts: continue dst_hosts = if_dst_hosts[dst_swif] for dst_host in dst_hosts: src_host = random.choice(src_hosts) 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() size = random.choice(packet_sizes) self.extend_packet(p, size) pkts.append(p) return pkts def verify_capture(self, pg_if, capture): """ Verify captured input packet stream for defined interface. :param object pg_if: Interface to verify captured packet stream for. :param list capture: Captured packet stream. """ last_info = dict() for i in self.pg_interfaces: last_info[i.sw_if_index] = None dst_sw_if_index = pg_if.sw_if_index for packet in capture: payload_info = self.payload_to_info(packet[Raw]) try: ip = packet[IP] udp = packet[UDP] packet_index = payload_info.index self.assertEqual(payload_info.dst, dst_sw_if_index) self.logger.debug("Got packet on port %s: src=%u (id=%u)" % (pg_if.name, payload_info.src, packet_index)) next_info = self.get_next_packet_info_for_interface2( payload_info.src, dst_sw_if_index, last_info[payload_info.src]) last_info[payload_info.src] = next_info self.assertTrue(next_info is not None) self.assertEqual(packet_index, next_info.index) saved_packet = next_info.data # Check standard fields self.assertEqual(ip.src, saved_packet[IP].src) self.assertEqual(ip.dst, saved_packet[IP].dst) self.assertEqual(udp.sport, saved_packet[UDP].sport) self.assertEqual(udp.dport, saved_packet[UDP].dport) except BaseException: self.logger.error(ppp("Unexpected or invalid packet:", packet)) raise for i in self.pg_interfaces: remaining_packet = self.get_next_packet_info_for_interface2( i, dst_sw_if_index, last_info[i.sw_if_index]) self.assertTrue( remaining_packet is None, "Port %u: Packet expected from source %u didn't arrive" % (dst_sw_if_index, i.sw_if_index)) def run_verify_test(self, bd_id, src_hosts, dst_hosts): # Test # Create incoming packet streams for packet-generator interfaces self.reset_packet_infos() ifs = [self.pg_interfaces[i] for i in self.bd_ifs(bd_id)] for i in ifs: pkts = self.create_stream( i, self.pg_if_packet_sizes, if_src_hosts=src_hosts, if_dst_hosts=dst_hosts) if pkts: i.add_stream(pkts) self.vapi.bridge_flags(bd_id=bd_id, is_set=0, flags=1) # Enable packet capture and start packet sending self.pg_enable_capture(ifs) self.pg_start() # Verify # Verify outgoing packet streams per packet-generator interface for i in ifs: if not dst_hosts[i.sw_if_index]: continue capture = i.get_capture() self.logger.info("Verifying capture on interface %s" % i.name) self.verify_capture(i, capture) def run_verify_negat_test(self, bd_id, src_hosts, dst_hosts): # Test # Create incoming packet streams for packet-generator interfaces for # deleted MAC addresses self.reset_packet_infos() ifs = [self.pg_interfaces[i] for i in self.bd_ifs(bd_id)] for i in ifs: pkts = self.create_stream( i, self.pg_if_packet_sizes, if_src_hosts=src_hosts, if_dst_hosts=dst_hosts) if pkts: i.add_stream(pkts) self.vapi.bridge_flags(bd_id=bd_id, is_set=0, flags=1) # Enable packet capture and start packet sending self.pg_enable_capture(ifs) self.pg_start() # Verify # Verify outgoing packet streams per packet-generator interface timeout = 1 for i in ifs: i.get_capture(0, timeout=timeout) i.assert_nothing_captured(remark="outgoing interface") timeout = 0.1 def test_l2_fib_program100(self): """ L2 FIB - program 100 MACs """ bd_id = 1 hosts = self.create_hosts(100, subnet=17) self.config_l2_fib_entries(bd_id, hosts) self.run_verify_test(bd_id, hosts, hosts) def test_l2_fib_program100_delete12(self): """ L2 FIB - program 100, delete 12 MACs """ bd_id = 1 hosts = self.create_hosts(100, subnet=17) self.config_l2_fib_entries(bd_id, hosts) del_hosts = self.split_hosts(hosts, 12) self.delete_l2_fib_entry(bd_id, del_hosts) self.run_verify_test(bd_id, hosts, hosts) self.run_verify_negat_test(bd_id, hosts, del_hosts) def test_l2_fib_program100_add100(self): """ L2 FIB - program 100, add 100 MACs """ bd_id = 1 hosts = self.create_hosts(100, subnet=17) self.config_l2_fib_entries(bd_id, hosts) hosts2 = self.create_hosts(100, subnet=22) self.config_l2_fib_entries(bd_id, hosts2) self.run_verify_test(bd_id, hosts, hosts2) def test_l2_fib_program10_learn10(self): """ L2 FIB - program 10 MACs, learn 10 """ hosts = self.create_hosts(20, subnet=35) 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, lhosts, hosts) self.run_verify_test(bd2, lhosts, hosts) def test_l2_fib_flush_int(self): """ L2 FIB - flush interface """ hosts = self.create_hosts(20, subnet=36) lhosts = self.split_hosts(hosts, 10) bd1 = 1 self.learn_hosts(bd1, lhosts) self.config_l2_fib_entries(bd1, hosts) self.run_verify_test(bd1, lhosts, hosts) flushed = self.flush_int(self.pg_interfaces[0].sw_if_index, lhosts) self.run_verify_test(bd1, hosts, lhosts) self.run_verify_negat_test(bd1, hosts, flushed) def test_l2_fib_flush_bd(self): """ L2 FIB - flush BD """ hosts = self.create_hosts(20, subnet=37) lhosts = self.split_hosts(hosts, 10) bd1 = 1 self.learn_hosts(bd1, lhosts) self.config_l2_fib_entries(bd1, hosts) self.run_verify_test(bd1, lhosts, hosts) flushed = self.flush_bd(bd1, lhosts) self.run_verify_negat_test(bd1, hosts, flushed) def test_l2_fib_flush_all(self): """ L2 FIB - flush all """ hosts = self.create_hosts(20, subnet=38) 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.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_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) if __name__ == '__main__': unittest.main(testRunner=VppTestRunner)