-#!/usr/bin/env python
-
-import unittest
+#!/usr/bin/env python3
+import binascii
+import random
import socket
+import unittest
+
+import scapy.compat
+from scapy.contrib.mpls import MPLS
+from scapy.layers.inet import IP, UDP, TCP, ICMP, icmptypes, icmpcodes
+from scapy.layers.l2 import Ether, Dot1Q, ARP
+from scapy.packet import Raw
+from six import moves
from framework import VppTestCase, VppTestRunner
-from vpp_interface import VppInterface
+from util import ppp
+from vpp_ip_route import VppIpRoute, VppRoutePath, VppIpMRoute, \
+ VppMRoutePath, MRouteItfFlags, MRouteEntryFlags, VppMplsIpBind, \
+ VppMplsTable, VppIpTable, FibPathType, find_route, \
+ VppIpInterfaceAddress, find_route_in_dump, find_mroute_in_dump
from vpp_sub_interface import VppSubInterface, VppDot1QSubint, VppDot1ADSubint
+from vpp_papi import VppEnum
+from vpp_neighbor import VppNeighbor
+from vpp_lo_interface import VppLoInterface
+from vpp_policer import VppPolicer
-from scapy.packet import Raw
-from scapy.layers.l2 import Ether, Dot1Q
-from scapy.layers.inet import IP, UDP
+NUM_PKTS = 67
class TestIPv4(VppTestCase):
""" IPv4 Test Case """
+ @classmethod
+ def setUpClass(cls):
+ super(TestIPv4, cls).setUpClass()
+
+ @classmethod
+ def tearDownClass(cls):
+ super(TestIPv4, cls).tearDownClass()
+
def setUp(self):
"""
Perform test setup before test case.
:ivar list interfaces: pg interfaces and subinterfaces.
:ivar dict flows: IPv4 packet flows in test.
- :ivar list pg_if_packet_sizes: packet sizes in test.
"""
super(TestIPv4, self).setUp()
self.flows[self.pg2.sub_if] = [self.pg0, self.pg1.sub_if]
# packet sizes
- self.pg_if_packet_sizes = [64, 512, 1518, 9018]
- self.sub_if_packet_sizes = [64, 512, 1518 + 4, 9018 + 4]
+ self.pg_if_packet_sizes = [64, 1500, 9020]
self.interfaces = list(self.pg_interfaces)
self.interfaces.extend(self.sub_interfaces)
i.resolve_arp()
# config 2M FIB entries
- self.config_fib_entries(200)
def tearDown(self):
"""Run standard test teardown and log ``show ip arp``."""
super(TestIPv4, self).tearDown()
- if not self.vpp_dead:
- self.logger.info(self.vapi.cli("show ip arp"))
- # info(self.vapi.cli("show ip fib")) # many entries
- def config_fib_entries(self, count):
- """For each interface add to the FIB table *count* routes to
- "10.0.0.1/32" destination with interface's local address as next-hop
- address.
+ def show_commands_at_teardown(self):
+ self.logger.info(self.vapi.cli("show ip4 neighbors"))
+ # info(self.vapi.cli("show ip fib")) # many entries
- :param int count: Number of FIB entries.
+ def modify_packet(self, src_if, packet_size, pkt):
+ """Add load, set destination IP and extend packet to required packet
+ size for defined interface.
- - *TODO:* check if the next-hop address shouldn't be remote address
- instead of local address.
+ :param VppInterface src_if: Interface to create packet for.
+ :param int packet_size: Required packet size.
+ :param Scapy pkt: Packet to be modified.
"""
- n_int = len(self.interfaces)
- percent = 0
- counter = 0.0
- dest_addr = socket.inet_pton(socket.AF_INET, "10.0.0.1")
- dest_addr_len = 32
- for i in self.interfaces:
- next_hop_address = i.local_ip4n
- for j in range(count / n_int):
- self.vapi.ip_add_del_route(
- dest_addr, dest_addr_len, next_hop_address)
- counter += 1
- if counter / count * 100 > percent:
- self.logger.info("Configure %d FIB entries .. %d%% done" %
- (count, percent))
- percent += 1
-
- def create_stream(self, src_if, packet_sizes):
+ dst_if_idx = int(packet_size / 10 % 2)
+ dst_if = self.flows[src_if][dst_if_idx]
+ info = self.create_packet_info(src_if, dst_if)
+ payload = self.info_to_payload(info)
+ p = pkt/Raw(payload)
+ p[IP].dst = dst_if.remote_ip4
+ info.data = p.copy()
+ if isinstance(src_if, VppSubInterface):
+ p = src_if.add_dot1_layer(p)
+ self.extend_packet(p, packet_size)
+
+ return p
+
+ def create_stream(self, src_if):
"""Create input packet stream for defined interface.
:param VppInterface src_if: Interface to create packet stream for.
- :param list packet_sizes: Required packet sizes.
"""
- pkts = []
- for i in range(0, 257):
- dst_if = self.flows[src_if][i % 2]
- info = self.create_packet_info(
- src_if.sw_if_index, dst_if.sw_if_index)
- payload = self.info_to_payload(info)
- p = (Ether(dst=src_if.local_mac, src=src_if.remote_mac) /
- IP(src=src_if.remote_ip4, dst=dst_if.remote_ip4) /
- UDP(sport=1234, dport=1234) /
- Raw(payload))
- info.data = p.copy()
- if isinstance(src_if, VppSubInterface):
- p = src_if.add_dot1_layer(p)
- size = packet_sizes[(i // 2) % len(packet_sizes)]
- self.extend_packet(p, size)
- pkts.append(p)
+ hdr_ext = 4 if isinstance(src_if, VppSubInterface) else 0
+ pkt_tmpl = (Ether(dst=src_if.local_mac, src=src_if.remote_mac) /
+ IP(src=src_if.remote_ip4) /
+ UDP(sport=1234, dport=1234))
+
+ pkts = [self.modify_packet(src_if, i, pkt_tmpl)
+ for i in moves.range(self.pg_if_packet_sizes[0],
+ self.pg_if_packet_sizes[1], 10)]
+ pkts_b = [self.modify_packet(src_if, i, pkt_tmpl)
+ for i in moves.range(self.pg_if_packet_sizes[1] + hdr_ext,
+ self.pg_if_packet_sizes[2] + hdr_ext,
+ 50)]
+ pkts.extend(pkts_b)
+
return pkts
def verify_capture(self, dst_if, capture):
"""Verify captured input packet stream for defined interface.
:param VppInterface dst_if: Interface to verify captured packet stream
- for.
+ for.
:param list capture: Captured packet stream.
"""
self.logger.info("Verifying capture on interface %s" % dst_if.name)
try:
ip = packet[IP]
udp = packet[UDP]
- payload_info = self.payload_to_info(str(packet[Raw]))
+ payload_info = self.payload_to_info(packet[Raw])
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)" %
- (dst_if.name, payload_info.src, packet_index))
+ self.logger.debug(
+ "Got packet on port %s: src=%u (id=%u)" %
+ (dst_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])
self.assertEqual(udp.sport, saved_packet[UDP].sport)
self.assertEqual(udp.dport, saved_packet[UDP].dport)
except:
- self.logger.error("Unexpected or invalid packet:")
- self.logger.error(packet.show())
+ self.logger.error(ppp("Unexpected or invalid packet:", packet))
raise
for i in self.interfaces:
remaining_packet = self.get_next_packet_info_for_interface2(
i.sw_if_index, dst_sw_if_index, last_info[i.sw_if_index])
- self.assertTrue(
- remaining_packet is None,
- "Interface %s: Packet expected from interface %s didn't arrive" %
- (dst_if.name, i.name))
+ self.assertTrue(remaining_packet is None,
+ "Interface %s: Packet expected from interface %s "
+ "didn't arrive" % (dst_if.name, i.name))
def test_fib(self):
""" IPv4 FIB test
Test scenario:
- Create IPv4 stream for pg0 interface
- - Create IPv4 tagged streams for pg1's and pg2's subinterface.
+ - Create IPv4 tagged streams for pg1's and pg2's sub-interface.
- Send and verify received packets on each interface.
"""
- pkts = self.create_stream(self.pg0, self.pg_if_packet_sizes)
+ pkts = self.create_stream(self.pg0)
self.pg0.add_stream(pkts)
for i in self.sub_interfaces:
- pkts = self.create_stream(i, self.sub_if_packet_sizes)
+ pkts = self.create_stream(i)
i.parent.add_stream(pkts)
self.pg_enable_capture(self.pg_interfaces)
self.verify_capture(i, pkts)
+class TestIPv4IfAddrRoute(VppTestCase):
+ """ IPv4 Interface Addr Route Test Case """
+
+ @classmethod
+ def setUpClass(cls):
+ super(TestIPv4IfAddrRoute, cls).setUpClass()
+
+ @classmethod
+ def tearDownClass(cls):
+ super(TestIPv4IfAddrRoute, cls).tearDownClass()
+
+ def setUp(self):
+ super(TestIPv4IfAddrRoute, self).setUp()
+
+ # create 1 pg interface
+ self.create_pg_interfaces(range(1))
+
+ for i in self.pg_interfaces:
+ i.admin_up()
+ i.config_ip4()
+ i.resolve_arp()
+
+ def tearDown(self):
+ super(TestIPv4IfAddrRoute, self).tearDown()
+ for i in self.pg_interfaces:
+ i.unconfig_ip4()
+ i.admin_down()
+
+ def test_ipv4_ifaddrs_same_prefix(self):
+ """ IPv4 Interface Addresses Same Prefix test
+
+ Test scenario:
+
+ - Verify no route in FIB for prefix 10.10.10.0/24
+ - Configure IPv4 address 10.10.10.10/24 on an interface
+ - Verify route in FIB for prefix 10.10.10.0/24
+ - Configure IPv4 address 10.10.10.20/24 on an interface
+ - Delete 10.10.10.10/24 from interface
+ - Verify route in FIB for prefix 10.10.10.0/24
+ - Delete 10.10.10.20/24 from interface
+ - Verify no route in FIB for prefix 10.10.10.0/24
+ """
+
+ # create two addresses, verify route not present
+ if_addr1 = VppIpInterfaceAddress(self, self.pg0, "10.10.10.10", 24)
+ if_addr2 = VppIpInterfaceAddress(self, self.pg0, "10.10.10.20", 24)
+ self.assertFalse(if_addr1.query_vpp_config()) # 10.10.10.10/24
+ self.assertFalse(find_route(self, "10.10.10.10", 32))
+ self.assertFalse(find_route(self, "10.10.10.20", 32))
+ self.assertFalse(find_route(self, "10.10.10.255", 32))
+ self.assertFalse(find_route(self, "10.10.10.0", 32))
+
+ # configure first address, verify route present
+ if_addr1.add_vpp_config()
+ self.assertTrue(if_addr1.query_vpp_config()) # 10.10.10.10/24
+ self.assertTrue(find_route(self, "10.10.10.10", 32))
+ self.assertFalse(find_route(self, "10.10.10.20", 32))
+ self.assertTrue(find_route(self, "10.10.10.255", 32))
+ self.assertTrue(find_route(self, "10.10.10.0", 32))
+
+ # configure second address, delete first, verify route not removed
+ if_addr2.add_vpp_config()
+ if_addr1.remove_vpp_config()
+ self.assertFalse(if_addr1.query_vpp_config()) # 10.10.10.10/24
+ self.assertTrue(if_addr2.query_vpp_config()) # 10.10.10.20/24
+ self.assertFalse(find_route(self, "10.10.10.10", 32))
+ self.assertTrue(find_route(self, "10.10.10.20", 32))
+ self.assertTrue(find_route(self, "10.10.10.255", 32))
+ self.assertTrue(find_route(self, "10.10.10.0", 32))
+
+ # delete second address, verify route removed
+ if_addr2.remove_vpp_config()
+ self.assertFalse(if_addr2.query_vpp_config()) # 10.10.10.20/24
+ self.assertFalse(find_route(self, "10.10.10.10", 32))
+ self.assertFalse(find_route(self, "10.10.10.20", 32))
+ self.assertFalse(find_route(self, "10.10.10.255", 32))
+ self.assertFalse(find_route(self, "10.10.10.0", 32))
+
+ def test_ipv4_ifaddr_route(self):
+ """ IPv4 Interface Address Route test
+
+ Test scenario:
+
+ - Create loopback
+ - Configure IPv4 address on loopback
+ - Verify that address is not in the FIB
+ - Bring loopback up
+ - Verify that address is in the FIB now
+ - Bring loopback down
+ - Verify that address is not in the FIB anymore
+ - Bring loopback up
+ - Configure IPv4 address on loopback
+ - Verify that address is in the FIB now
+ """
+
+ # create a loopback and configure IPv4
+ loopbacks = self.create_loopback_interfaces(1)
+ lo_if = self.lo_interfaces[0]
+
+ lo_if.local_ip4_prefix_len = 32
+ lo_if.config_ip4()
+
+ # The intf was down when addr was added -> entry not in FIB
+ fib4_dump = self.vapi.ip_route_dump(0)
+ self.assertFalse(lo_if.is_ip4_entry_in_fib_dump(fib4_dump))
+
+ # When intf is brought up, entry is added
+ lo_if.admin_up()
+ fib4_dump = self.vapi.ip_route_dump(0)
+ self.assertTrue(lo_if.is_ip4_entry_in_fib_dump(fib4_dump))
+
+ # When intf is brought down, entry is removed
+ lo_if.admin_down()
+ fib4_dump = self.vapi.ip_route_dump(0)
+ self.assertFalse(lo_if.is_ip4_entry_in_fib_dump(fib4_dump))
+
+ # Remove addr, bring up interface, re-add -> entry in FIB
+ lo_if.unconfig_ip4()
+ lo_if.admin_up()
+ lo_if.config_ip4()
+ fib4_dump = self.vapi.ip_route_dump(0)
+ self.assertTrue(lo_if.is_ip4_entry_in_fib_dump(fib4_dump))
+
+
+class TestICMPEcho(VppTestCase):
+ """ ICMP Echo Test Case """
+
+ @classmethod
+ def setUpClass(cls):
+ super(TestICMPEcho, cls).setUpClass()
+
+ @classmethod
+ def tearDownClass(cls):
+ super(TestICMPEcho, cls).tearDownClass()
+
+ def setUp(self):
+ super(TestICMPEcho, self).setUp()
+
+ # create 1 pg interface
+ self.create_pg_interfaces(range(1))
+
+ for i in self.pg_interfaces:
+ i.admin_up()
+ i.config_ip4()
+ i.resolve_arp()
+
+ def tearDown(self):
+ super(TestICMPEcho, self).tearDown()
+ for i in self.pg_interfaces:
+ i.unconfig_ip4()
+ i.admin_down()
+
+ def test_icmp_echo(self):
+ """ VPP replies to ICMP Echo Request
+
+ Test scenario:
+
+ - Receive ICMP Echo Request message on pg0 interface.
+ - Check outgoing ICMP Echo Reply message on pg0 interface.
+ """
+
+ icmp_id = 0xb
+ icmp_seq = 5
+ icmp_load = b'\x0a' * 18
+ p_echo_request = (Ether(src=self.pg0.remote_mac,
+ dst=self.pg0.local_mac) /
+ IP(src=self.pg0.remote_ip4, dst=self.pg0.local_ip4) /
+ ICMP(id=icmp_id, seq=icmp_seq) /
+ Raw(load=icmp_load))
+
+ self.pg0.add_stream(p_echo_request)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+
+ rx = self.pg0.get_capture(1)
+ rx = rx[0]
+ ether = rx[Ether]
+ ipv4 = rx[IP]
+ icmp = rx[ICMP]
+
+ self.assertEqual(ether.src, self.pg0.local_mac)
+ self.assertEqual(ether.dst, self.pg0.remote_mac)
+
+ self.assertEqual(ipv4.src, self.pg0.local_ip4)
+ self.assertEqual(ipv4.dst, self.pg0.remote_ip4)
+
+ self.assertEqual(icmptypes[icmp.type], "echo-reply")
+ self.assertEqual(icmp.id, icmp_id)
+ self.assertEqual(icmp.seq, icmp_seq)
+ self.assertEqual(icmp[Raw].load, icmp_load)
+
+
+class TestIPv4FibCrud(VppTestCase):
+ """ FIB - add/update/delete - ip4 routes
+
+ Test scenario:
+ - add 1k,
+ - del 100,
+ - add new 1k,
+ - del 1.5k
+
+ ..note:: Python API is too slow to add many routes, needs replacement.
+ """
+
+ def config_fib_many_to_one(self, start_dest_addr, next_hop_addr,
+ count, start=0):
+ """
+
+ :param start_dest_addr:
+ :param next_hop_addr:
+ :param count:
+ :return list: added ips with 32 prefix
+ """
+ routes = []
+ for i in range(count):
+ r = VppIpRoute(self, start_dest_addr % (i + start), 32,
+ [VppRoutePath(next_hop_addr, 0xffffffff)])
+ r.add_vpp_config()
+ routes.append(r)
+ return routes
+
+ def unconfig_fib_many_to_one(self, start_dest_addr, next_hop_addr,
+ count, start=0):
+
+ routes = []
+ for i in range(count):
+ r = VppIpRoute(self, start_dest_addr % (i + start), 32,
+ [VppRoutePath(next_hop_addr, 0xffffffff)])
+ r.remove_vpp_config()
+ routes.append(r)
+ return routes
+
+ def create_stream(self, src_if, dst_if, routes, count):
+ pkts = []
+
+ for _ in range(count):
+ dst_addr = random.choice(routes).prefix.network_address
+ info = self.create_packet_info(src_if, dst_if)
+ payload = self.info_to_payload(info)
+ p = (Ether(dst=src_if.local_mac, src=src_if.remote_mac) /
+ IP(src=src_if.remote_ip4, dst=str(dst_addr)) /
+ UDP(sport=1234, dport=1234) /
+ Raw(payload))
+ info.data = p.copy()
+ self.extend_packet(p, random.choice(self.pg_if_packet_sizes))
+ pkts.append(p)
+
+ return pkts
+
+ def _find_ip_match(self, find_in, pkt):
+ for p in find_in:
+ if self.payload_to_info(p[Raw]) == \
+ self.payload_to_info(pkt[Raw]):
+ if p[IP].src != pkt[IP].src:
+ break
+ if p[IP].dst != pkt[IP].dst:
+ break
+ if p[UDP].sport != pkt[UDP].sport:
+ break
+ if p[UDP].dport != pkt[UDP].dport:
+ break
+ return p
+ return None
+
+ def verify_capture(self, dst_interface, received_pkts, expected_pkts):
+ self.assertEqual(len(received_pkts), len(expected_pkts))
+ to_verify = list(expected_pkts)
+ for p in received_pkts:
+ self.assertEqual(p.src, dst_interface.local_mac)
+ self.assertEqual(p.dst, dst_interface.remote_mac)
+ x = self._find_ip_match(to_verify, p)
+ to_verify.remove(x)
+ self.assertListEqual(to_verify, [])
+
+ def verify_route_dump(self, routes):
+ for r in routes:
+ self.assertTrue(find_route(self,
+ r.prefix.network_address,
+ r.prefix.prefixlen))
+
+ def verify_not_in_route_dump(self, routes):
+ for r in routes:
+ self.assertFalse(find_route(self,
+ r.prefix.network_address,
+ r.prefix.prefixlen))
+
+ @classmethod
+ def setUpClass(cls):
+ """
+ #. Create and initialize 3 pg interfaces.
+ #. initialize class attributes configured_routes and deleted_routes
+ to store information between tests.
+ """
+ super(TestIPv4FibCrud, cls).setUpClass()
+
+ try:
+ # create 3 pg interfaces
+ cls.create_pg_interfaces(range(3))
+
+ cls.interfaces = list(cls.pg_interfaces)
+
+ # setup all interfaces
+ for i in cls.interfaces:
+ i.admin_up()
+ i.config_ip4()
+ i.resolve_arp()
+
+ cls.configured_routes = []
+ cls.deleted_routes = []
+ cls.pg_if_packet_sizes = [64, 512, 1518, 9018]
+
+ except Exception:
+ super(TestIPv4FibCrud, cls).tearDownClass()
+ raise
+
+ @classmethod
+ def tearDownClass(cls):
+ super(TestIPv4FibCrud, cls).tearDownClass()
+
+ def setUp(self):
+ super(TestIPv4FibCrud, self).setUp()
+ self.reset_packet_infos()
+
+ self.configured_routes = []
+ self.deleted_routes = []
+
+ def test_1_add_routes(self):
+ """ Add 1k routes """
+
+ # add 100 routes check with traffic script.
+ self.configured_routes.extend(self.config_fib_many_to_one(
+ "10.0.0.%d", self.pg0.remote_ip4, 100))
+
+ self.verify_route_dump(self.configured_routes)
+
+ self.stream_1 = self.create_stream(
+ self.pg1, self.pg0, self.configured_routes, 100)
+ self.stream_2 = self.create_stream(
+ self.pg2, self.pg0, self.configured_routes, 100)
+ self.pg1.add_stream(self.stream_1)
+ self.pg2.add_stream(self.stream_2)
+
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+
+ pkts = self.pg0.get_capture(len(self.stream_1) + len(self.stream_2))
+ self.verify_capture(self.pg0, pkts, self.stream_1 + self.stream_2)
+
+ def test_2_del_routes(self):
+ """ Delete 100 routes
+
+ - delete 10 routes check with traffic script.
+ """
+ # config 1M FIB entries
+ self.configured_routes.extend(self.config_fib_many_to_one(
+ "10.0.0.%d", self.pg0.remote_ip4, 100))
+ self.deleted_routes.extend(self.unconfig_fib_many_to_one(
+ "10.0.0.%d", self.pg0.remote_ip4, 10, start=10))
+ for x in self.deleted_routes:
+ self.configured_routes.remove(x)
+
+ self.verify_route_dump(self.configured_routes)
+
+ self.stream_1 = self.create_stream(
+ self.pg1, self.pg0, self.configured_routes, 100)
+ self.stream_2 = self.create_stream(
+ self.pg2, self.pg0, self.configured_routes, 100)
+ self.stream_3 = self.create_stream(
+ self.pg1, self.pg0, self.deleted_routes, 100)
+ self.stream_4 = self.create_stream(
+ self.pg2, self.pg0, self.deleted_routes, 100)
+ self.pg1.add_stream(self.stream_1 + self.stream_3)
+ self.pg2.add_stream(self.stream_2 + self.stream_4)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+
+ pkts = self.pg0.get_capture(len(self.stream_1) + len(self.stream_2))
+ self.verify_capture(self.pg0, pkts, self.stream_1 + self.stream_2)
+
+ def test_3_add_new_routes(self):
+ """ Add 1k routes
+
+ - re-add 5 routes check with traffic script.
+ - add 100 routes check with traffic script.
+ """
+ # config 1M FIB entries
+ self.configured_routes.extend(self.config_fib_many_to_one(
+ "10.0.0.%d", self.pg0.remote_ip4, 100))
+ self.deleted_routes.extend(self.unconfig_fib_many_to_one(
+ "10.0.0.%d", self.pg0.remote_ip4, 10, start=10))
+ for x in self.deleted_routes:
+ self.configured_routes.remove(x)
+
+ tmp = self.config_fib_many_to_one(
+ "10.0.0.%d", self.pg0.remote_ip4, 5, start=10)
+ self.configured_routes.extend(tmp)
+ for x in tmp:
+ self.deleted_routes.remove(x)
+
+ self.configured_routes.extend(self.config_fib_many_to_one(
+ "10.0.1.%d", self.pg0.remote_ip4, 100))
+
+ self.verify_route_dump(self.configured_routes)
+
+ self.stream_1 = self.create_stream(
+ self.pg1, self.pg0, self.configured_routes, 300)
+ self.stream_2 = self.create_stream(
+ self.pg2, self.pg0, self.configured_routes, 300)
+ self.stream_3 = self.create_stream(
+ self.pg1, self.pg0, self.deleted_routes, 100)
+ self.stream_4 = self.create_stream(
+ self.pg2, self.pg0, self.deleted_routes, 100)
+
+ self.pg1.add_stream(self.stream_1 + self.stream_3)
+ self.pg2.add_stream(self.stream_2 + self.stream_4)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+
+ pkts = self.pg0.get_capture(len(self.stream_1) + len(self.stream_2))
+ self.verify_capture(self.pg0, pkts, self.stream_1 + self.stream_2)
+
+ # delete 5 routes check with traffic script.
+ # add 100 routes check with traffic script.
+ self.deleted_routes.extend(self.unconfig_fib_many_to_one(
+ "10.0.0.%d", self.pg0.remote_ip4, 15))
+ self.deleted_routes.extend(self.unconfig_fib_many_to_one(
+ "10.0.0.%d", self.pg0.remote_ip4, 85))
+ self.deleted_routes.extend(self.unconfig_fib_many_to_one(
+ "10.0.1.%d", self.pg0.remote_ip4, 100))
+ self.verify_not_in_route_dump(self.deleted_routes)
+
+
+class TestIPNull(VppTestCase):
+ """ IPv4 routes via NULL """
+
+ @classmethod
+ def setUpClass(cls):
+ super(TestIPNull, cls).setUpClass()
+
+ @classmethod
+ def tearDownClass(cls):
+ super(TestIPNull, cls).tearDownClass()
+
+ def setUp(self):
+ super(TestIPNull, self).setUp()
+
+ # create 2 pg interfaces
+ self.create_pg_interfaces(range(2))
+
+ for i in self.pg_interfaces:
+ i.admin_up()
+ i.config_ip4()
+ i.resolve_arp()
+
+ def tearDown(self):
+ super(TestIPNull, self).tearDown()
+ for i in self.pg_interfaces:
+ i.unconfig_ip4()
+ i.admin_down()
+
+ def test_ip_null(self):
+ """ IP NULL route """
+
+ #
+ # A route via IP NULL that will reply with ICMP unreachables
+ #
+ ip_unreach = VppIpRoute(
+ self, "10.0.0.1", 32,
+ [VppRoutePath("0.0.0.0",
+ 0xffffffff,
+ type=FibPathType.FIB_PATH_TYPE_ICMP_UNREACH)])
+ ip_unreach.add_vpp_config()
+
+ p_unreach = (Ether(src=self.pg0.remote_mac,
+ dst=self.pg0.local_mac) /
+ IP(src=self.pg0.remote_ip4, dst="10.0.0.1") /
+ UDP(sport=1234, dport=1234) /
+ Raw(b'\xa5' * 100))
+ self.pg0.add_stream(p_unreach)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+
+ rx = self.pg0.get_capture(1)
+ rx = rx[0]
+ icmp = rx[ICMP]
+
+ self.assertEqual(icmptypes[icmp.type], "dest-unreach")
+ self.assertEqual(icmpcodes[icmp.type][icmp.code], "host-unreachable")
+ self.assertEqual(icmp.src, self.pg0.remote_ip4)
+ self.assertEqual(icmp.dst, "10.0.0.1")
+
+ #
+ # ICMP replies are rate limited. so sit and spin.
+ #
+ self.sleep(1)
+
+ #
+ # A route via IP NULL that will reply with ICMP prohibited
+ #
+ ip_prohibit = VppIpRoute(
+ self, "10.0.0.2", 32,
+ [VppRoutePath("0.0.0.0",
+ 0xffffffff,
+ type=FibPathType.FIB_PATH_TYPE_ICMP_PROHIBIT)])
+ ip_prohibit.add_vpp_config()
+
+ p_prohibit = (Ether(src=self.pg0.remote_mac,
+ dst=self.pg0.local_mac) /
+ IP(src=self.pg0.remote_ip4, dst="10.0.0.2") /
+ UDP(sport=1234, dport=1234) /
+ Raw(b'\xa5' * 100))
+
+ self.pg0.add_stream(p_prohibit)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+
+ rx = self.pg0.get_capture(1)
+
+ rx = rx[0]
+ icmp = rx[ICMP]
+
+ self.assertEqual(icmptypes[icmp.type], "dest-unreach")
+ self.assertEqual(icmpcodes[icmp.type][icmp.code], "host-prohibited")
+ self.assertEqual(icmp.src, self.pg0.remote_ip4)
+ self.assertEqual(icmp.dst, "10.0.0.2")
+
+ def test_ip_drop(self):
+ """ IP Drop Routes """
+
+ p = (Ether(src=self.pg0.remote_mac,
+ dst=self.pg0.local_mac) /
+ IP(src=self.pg0.remote_ip4, dst="1.1.1.1") /
+ UDP(sport=1234, dport=1234) /
+ Raw(b'\xa5' * 100))
+
+ r1 = VppIpRoute(self, "1.1.1.0", 24,
+ [VppRoutePath(self.pg1.remote_ip4,
+ self.pg1.sw_if_index)])
+ r1.add_vpp_config()
+
+ rx = self.send_and_expect(self.pg0, p * NUM_PKTS, self.pg1)
+
+ #
+ # insert a more specific as a drop
+ #
+ r2 = VppIpRoute(self, "1.1.1.1", 32,
+ [VppRoutePath("0.0.0.0",
+ 0xffffffff,
+ type=FibPathType.FIB_PATH_TYPE_DROP)])
+ r2.add_vpp_config()
+
+ self.send_and_assert_no_replies(self.pg0, p * NUM_PKTS, "Drop Route")
+ r2.remove_vpp_config()
+ rx = self.send_and_expect(self.pg0, p * NUM_PKTS, self.pg1)
+
+
+class TestIPDisabled(VppTestCase):
+ """ IPv4 disabled """
+
+ @classmethod
+ def setUpClass(cls):
+ super(TestIPDisabled, cls).setUpClass()
+
+ @classmethod
+ def tearDownClass(cls):
+ super(TestIPDisabled, cls).tearDownClass()
+
+ def setUp(self):
+ super(TestIPDisabled, self).setUp()
+
+ # create 2 pg interfaces
+ self.create_pg_interfaces(range(2))
+
+ # PG0 is IP enalbed
+ self.pg0.admin_up()
+ self.pg0.config_ip4()
+ self.pg0.resolve_arp()
+
+ # PG 1 is not IP enabled
+ self.pg1.admin_up()
+
+ def tearDown(self):
+ super(TestIPDisabled, self).tearDown()
+ for i in self.pg_interfaces:
+ i.unconfig_ip4()
+ i.admin_down()
+
+ def test_ip_disabled(self):
+ """ IP Disabled """
+
+ #
+ # An (S,G).
+ # one accepting interface, pg0, 2 forwarding interfaces
+ #
+ route_232_1_1_1 = VppIpMRoute(
+ self,
+ "0.0.0.0",
+ "232.1.1.1", 32,
+ MRouteEntryFlags.MFIB_ENTRY_FLAG_NONE,
+ [VppMRoutePath(self.pg1.sw_if_index,
+ MRouteItfFlags.MFIB_ITF_FLAG_ACCEPT),
+ VppMRoutePath(self.pg0.sw_if_index,
+ MRouteItfFlags.MFIB_ITF_FLAG_FORWARD)])
+ route_232_1_1_1.add_vpp_config()
+
+ pu = (Ether(src=self.pg1.remote_mac,
+ dst=self.pg1.local_mac) /
+ IP(src="10.10.10.10", dst=self.pg0.remote_ip4) /
+ UDP(sport=1234, dport=1234) /
+ Raw(b'\xa5' * 100))
+ pm = (Ether(src=self.pg1.remote_mac,
+ dst=self.pg1.local_mac) /
+ IP(src="10.10.10.10", dst="232.1.1.1") /
+ UDP(sport=1234, dport=1234) /
+ Raw(b'\xa5' * 100))
+
+ #
+ # PG1 does not forward IP traffic
+ #
+ self.send_and_assert_no_replies(self.pg1, pu, "IP disabled")
+ self.send_and_assert_no_replies(self.pg1, pm, "IP disabled")
+
+ #
+ # IP enable PG1
+ #
+ self.pg1.config_ip4()
+
+ #
+ # Now we get packets through
+ #
+ self.pg1.add_stream(pu)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+ rx = self.pg0.get_capture(1)
+
+ self.pg1.add_stream(pm)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+ rx = self.pg0.get_capture(1)
+
+ #
+ # Disable PG1
+ #
+ self.pg1.unconfig_ip4()
+
+ #
+ # PG1 does not forward IP traffic
+ #
+ self.send_and_assert_no_replies(self.pg1, pu, "IP disabled")
+ self.send_and_assert_no_replies(self.pg1, pm, "IP disabled")
+
+
+class TestIPSubNets(VppTestCase):
+ """ IPv4 Subnets """
+
+ @classmethod
+ def setUpClass(cls):
+ super(TestIPSubNets, cls).setUpClass()
+
+ @classmethod
+ def tearDownClass(cls):
+ super(TestIPSubNets, cls).tearDownClass()
+
+ def setUp(self):
+ super(TestIPSubNets, self).setUp()
+
+ # create a 2 pg interfaces
+ self.create_pg_interfaces(range(2))
+
+ # pg0 we will use to experiment
+ self.pg0.admin_up()
+
+ # pg1 is setup normally
+ self.pg1.admin_up()
+ self.pg1.config_ip4()
+ self.pg1.resolve_arp()
+
+ def tearDown(self):
+ super(TestIPSubNets, self).tearDown()
+ for i in self.pg_interfaces:
+ i.admin_down()
+
+ def test_ip_sub_nets(self):
+ """ IP Sub Nets """
+
+ #
+ # Configure a covering route to forward so we know
+ # when we are dropping
+ #
+ cover_route = VppIpRoute(self, "10.0.0.0", 8,
+ [VppRoutePath(self.pg1.remote_ip4,
+ self.pg1.sw_if_index)])
+ cover_route.add_vpp_config()
+
+ p = (Ether(src=self.pg1.remote_mac,
+ dst=self.pg1.local_mac) /
+ IP(dst="10.10.10.10", src=self.pg0.local_ip4) /
+ UDP(sport=1234, dport=1234) /
+ Raw(b'\xa5' * 100))
+
+ self.pg1.add_stream(p)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+ rx = self.pg1.get_capture(1)
+
+ #
+ # Configure some non-/24 subnets on an IP interface
+ #
+ ip_addr_n = socket.inet_pton(socket.AF_INET, "10.10.10.10")
+
+ self.vapi.sw_interface_add_del_address(
+ sw_if_index=self.pg0.sw_if_index,
+ prefix="10.10.10.10/16")
+
+ pn = (Ether(src=self.pg1.remote_mac,
+ dst=self.pg1.local_mac) /
+ IP(dst="10.10.0.0", src=self.pg0.local_ip4) /
+ UDP(sport=1234, dport=1234) /
+ Raw(b'\xa5' * 100))
+ pb = (Ether(src=self.pg1.remote_mac,
+ dst=self.pg1.local_mac) /
+ IP(dst="10.10.255.255", src=self.pg0.local_ip4) /
+ UDP(sport=1234, dport=1234) /
+ Raw(b'\xa5' * 100))
+
+ self.send_and_assert_no_replies(self.pg1, pn, "IP Network address")
+ self.send_and_assert_no_replies(self.pg1, pb, "IP Broadcast address")
+
+ # remove the sub-net and we are forwarding via the cover again
+ self.vapi.sw_interface_add_del_address(
+ sw_if_index=self.pg0.sw_if_index,
+ prefix="10.10.10.10/16",
+ is_add=0)
+
+ self.pg1.add_stream(pn)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+ rx = self.pg1.get_capture(1)
+ self.pg1.add_stream(pb)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+ rx = self.pg1.get_capture(1)
+
+ #
+ # A /31 is a special case where the 'other-side' is an attached host
+ # packets to that peer generate ARP requests
+ #
+ ip_addr_n = socket.inet_pton(socket.AF_INET, "10.10.10.10")
+
+ self.vapi.sw_interface_add_del_address(
+ sw_if_index=self.pg0.sw_if_index,
+ prefix="10.10.10.10/31")
+
+ pn = (Ether(src=self.pg1.remote_mac,
+ dst=self.pg1.local_mac) /
+ IP(dst="10.10.10.11", src=self.pg0.local_ip4) /
+ UDP(sport=1234, dport=1234) /
+ Raw(b'\xa5' * 100))
+
+ self.pg1.add_stream(pn)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+ rx = self.pg0.get_capture(1)
+ rx[ARP]
+
+ # remove the sub-net and we are forwarding via the cover again
+ self.vapi.sw_interface_add_del_address(
+ sw_if_index=self.pg0.sw_if_index,
+ prefix="10.10.10.10/31", is_add=0)
+
+ self.pg1.add_stream(pn)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+ rx = self.pg1.get_capture(1)
+
+
+class TestIPLoadBalance(VppTestCase):
+ """ IPv4 Load-Balancing """
+
+ @classmethod
+ def setUpClass(cls):
+ super(TestIPLoadBalance, cls).setUpClass()
+
+ @classmethod
+ def tearDownClass(cls):
+ super(TestIPLoadBalance, cls).tearDownClass()
+
+ def setUp(self):
+ super(TestIPLoadBalance, self).setUp()
+
+ self.create_pg_interfaces(range(5))
+ mpls_tbl = VppMplsTable(self, 0)
+ mpls_tbl.add_vpp_config()
+
+ for i in self.pg_interfaces:
+ i.admin_up()
+ i.config_ip4()
+ i.resolve_arp()
+ i.enable_mpls()
+
+ def tearDown(self):
+ for i in self.pg_interfaces:
+ i.disable_mpls()
+ i.unconfig_ip4()
+ i.admin_down()
+ super(TestIPLoadBalance, self).tearDown()
+
+ def send_and_expect_load_balancing(self, input, pkts, outputs):
+ input.add_stream(pkts)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+ rxs = []
+ for oo in outputs:
+ rx = oo._get_capture(1)
+ self.assertNotEqual(0, len(rx))
+ for r in rx:
+ rxs.append(r)
+ return rxs
+
+ def send_and_expect_one_itf(self, input, pkts, itf):
+ input.add_stream(pkts)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+ rx = itf.get_capture(len(pkts))
+
+ def test_ip_load_balance(self):
+ """ IP Load-Balancing """
+
+ #
+ # An array of packets that differ only in the destination port
+ #
+ port_ip_pkts = []
+ port_mpls_pkts = []
+
+ #
+ # An array of packets that differ only in the source address
+ #
+ src_ip_pkts = []
+ src_mpls_pkts = []
+
+ for ii in range(NUM_PKTS):
+ port_ip_hdr = (IP(dst="10.0.0.1", src="20.0.0.1") /
+ UDP(sport=1234, dport=1234 + ii) /
+ Raw(b'\xa5' * 100))
+ port_ip_pkts.append((Ether(src=self.pg0.remote_mac,
+ dst=self.pg0.local_mac) /
+ port_ip_hdr))
+ port_mpls_pkts.append((Ether(src=self.pg0.remote_mac,
+ dst=self.pg0.local_mac) /
+ MPLS(label=66, ttl=2) /
+ port_ip_hdr))
+
+ src_ip_hdr = (IP(dst="10.0.0.1", src="20.0.0.%d" % ii) /
+ UDP(sport=1234, dport=1234) /
+ Raw(b'\xa5' * 100))
+ src_ip_pkts.append((Ether(src=self.pg0.remote_mac,
+ dst=self.pg0.local_mac) /
+ src_ip_hdr))
+ src_mpls_pkts.append((Ether(src=self.pg0.remote_mac,
+ dst=self.pg0.local_mac) /
+ MPLS(label=66, ttl=2) /
+ src_ip_hdr))
+
+ route_10_0_0_1 = VppIpRoute(self, "10.0.0.1", 32,
+ [VppRoutePath(self.pg1.remote_ip4,
+ self.pg1.sw_if_index),
+ VppRoutePath(self.pg2.remote_ip4,
+ self.pg2.sw_if_index)])
+ route_10_0_0_1.add_vpp_config()
+
+ binding = VppMplsIpBind(self, 66, "10.0.0.1", 32)
+ binding.add_vpp_config()
+
+ #
+ # inject the packet on pg0 - expect load-balancing across the 2 paths
+ # - since the default hash config is to use IP src,dst and port
+ # src,dst
+ # We are not going to ensure equal amounts of packets across each link,
+ # since the hash algorithm is statistical and therefore this can never
+ # be guaranteed. But with 64 different packets we do expect some
+ # balancing. So instead just ensure there is traffic on each link.
+ #
+ self.send_and_expect_load_balancing(self.pg0, port_ip_pkts,
+ [self.pg1, self.pg2])
+ self.send_and_expect_load_balancing(self.pg0, src_ip_pkts,
+ [self.pg1, self.pg2])
+ self.send_and_expect_load_balancing(self.pg0, port_mpls_pkts,
+ [self.pg1, self.pg2])
+ self.send_and_expect_load_balancing(self.pg0, src_mpls_pkts,
+ [self.pg1, self.pg2])
+
+ #
+ # change the flow hash config so it's only IP src,dst
+ # - now only the stream with differing source address will
+ # load-balance
+ #
+ self.vapi.set_ip_flow_hash(vrf_id=0, src=1, dst=1, sport=0, dport=0)
+
+ self.send_and_expect_load_balancing(self.pg0, src_ip_pkts,
+ [self.pg1, self.pg2])
+ self.send_and_expect_load_balancing(self.pg0, src_mpls_pkts,
+ [self.pg1, self.pg2])
+
+ self.send_and_expect_one_itf(self.pg0, port_ip_pkts, self.pg2)
+
+ #
+ # change the flow hash config back to defaults
+ #
+ self.vapi.set_ip_flow_hash(vrf_id=0, src=1, dst=1, sport=1, dport=1)
+
+ #
+ # Recursive prefixes
+ # - testing that 2 stages of load-balancing occurs and there is no
+ # polarisation (i.e. only 2 of 4 paths are used)
+ #
+ port_pkts = []
+ src_pkts = []
+
+ for ii in range(257):
+ port_pkts.append((Ether(src=self.pg0.remote_mac,
+ dst=self.pg0.local_mac) /
+ IP(dst="1.1.1.1", src="20.0.0.1") /
+ UDP(sport=1234, dport=1234 + ii) /
+ Raw(b'\xa5' * 100)))
+ src_pkts.append((Ether(src=self.pg0.remote_mac,
+ dst=self.pg0.local_mac) /
+ IP(dst="1.1.1.1", src="20.0.0.%d" % ii) /
+ UDP(sport=1234, dport=1234) /
+ Raw(b'\xa5' * 100)))
+
+ route_10_0_0_2 = VppIpRoute(self, "10.0.0.2", 32,
+ [VppRoutePath(self.pg3.remote_ip4,
+ self.pg3.sw_if_index),
+ VppRoutePath(self.pg4.remote_ip4,
+ self.pg4.sw_if_index)])
+ route_10_0_0_2.add_vpp_config()
+
+ route_1_1_1_1 = VppIpRoute(self, "1.1.1.1", 32,
+ [VppRoutePath("10.0.0.2", 0xffffffff),
+ VppRoutePath("10.0.0.1", 0xffffffff)])
+ route_1_1_1_1.add_vpp_config()
+
+ #
+ # inject the packet on pg0 - expect load-balancing across all 4 paths
+ #
+ self.vapi.cli("clear trace")
+ self.send_and_expect_load_balancing(self.pg0, port_pkts,
+ [self.pg1, self.pg2,
+ self.pg3, self.pg4])
+ self.send_and_expect_load_balancing(self.pg0, src_pkts,
+ [self.pg1, self.pg2,
+ self.pg3, self.pg4])
+
+ #
+ # bring down pg1 expect LB to adjust to use only those that are pu
+ #
+ self.pg1.link_down()
+
+ rx = self.send_and_expect_load_balancing(self.pg0, src_pkts,
+ [self.pg2, self.pg3,
+ self.pg4])
+ self.assertEqual(len(src_pkts), len(rx))
+
+ #
+ # bring down pg2 expect LB to adjust to use only those that are pu
+ #
+ self.pg2.link_down()
+
+ rx = self.send_and_expect_load_balancing(self.pg0, src_pkts,
+ [self.pg3, self.pg4])
+ self.assertEqual(len(src_pkts), len(rx))
+
+ #
+ # bring the links back up - expect LB over all again
+ #
+ self.pg1.link_up()
+ self.pg2.link_up()
+
+ rx = self.send_and_expect_load_balancing(self.pg0, src_pkts,
+ [self.pg1, self.pg2,
+ self.pg3, self.pg4])
+ self.assertEqual(len(src_pkts), len(rx))
+
+ #
+ # The same link-up/down but this time admin state
+ #
+ self.pg1.admin_down()
+ self.pg2.admin_down()
+ rx = self.send_and_expect_load_balancing(self.pg0, src_pkts,
+ [self.pg3, self.pg4])
+ self.assertEqual(len(src_pkts), len(rx))
+ self.pg1.admin_up()
+ self.pg2.admin_up()
+ self.pg1.resolve_arp()
+ self.pg2.resolve_arp()
+ rx = self.send_and_expect_load_balancing(self.pg0, src_pkts,
+ [self.pg1, self.pg2,
+ self.pg3, self.pg4])
+ self.assertEqual(len(src_pkts), len(rx))
+
+ #
+ # Recursive prefixes
+ # - testing that 2 stages of load-balancing, no choices
+ #
+ port_pkts = []
+
+ for ii in range(257):
+ port_pkts.append((Ether(src=self.pg0.remote_mac,
+ dst=self.pg0.local_mac) /
+ IP(dst="1.1.1.2", src="20.0.0.2") /
+ UDP(sport=1234, dport=1234 + ii) /
+ Raw(b'\xa5' * 100)))
+
+ route_10_0_0_3 = VppIpRoute(self, "10.0.0.3", 32,
+ [VppRoutePath(self.pg3.remote_ip4,
+ self.pg3.sw_if_index)])
+ route_10_0_0_3.add_vpp_config()
+
+ route_1_1_1_2 = VppIpRoute(self, "1.1.1.2", 32,
+ [VppRoutePath("10.0.0.3", 0xffffffff)])
+ route_1_1_1_2.add_vpp_config()
+
+ #
+ # inject the packet on pg0 - rx only on via routes output interface
+ #
+ self.vapi.cli("clear trace")
+ self.send_and_expect_one_itf(self.pg0, port_pkts, self.pg3)
+
+ #
+ # Add a LB route in the presence of a down link - expect no
+ # packets over the down link
+ #
+ self.pg3.link_down()
+
+ route_10_0_0_3 = VppIpRoute(self, "10.0.0.3", 32,
+ [VppRoutePath(self.pg3.remote_ip4,
+ self.pg3.sw_if_index),
+ VppRoutePath(self.pg4.remote_ip4,
+ self.pg4.sw_if_index)])
+ route_10_0_0_3.add_vpp_config()
+
+ port_pkts = []
+ for ii in range(257):
+ port_pkts.append(Ether(src=self.pg0.remote_mac,
+ dst=self.pg0.local_mac) /
+ IP(dst="10.0.0.3", src="20.0.0.2") /
+ UDP(sport=1234, dport=1234 + ii) /
+ Raw(b'\xa5' * 100))
+
+ self.send_and_expect_one_itf(self.pg0, port_pkts, self.pg4)
+
+ # bring the link back up
+ self.pg3.link_up()
+
+ rx = self.send_and_expect_load_balancing(self.pg0, port_pkts,
+ [self.pg3, self.pg4])
+ self.assertEqual(len(src_pkts), len(rx))
+
+
+class TestIPVlan0(VppTestCase):
+ """ IPv4 VLAN-0 """
+
+ @classmethod
+ def setUpClass(cls):
+ super(TestIPVlan0, cls).setUpClass()
+
+ @classmethod
+ def tearDownClass(cls):
+ super(TestIPVlan0, cls).tearDownClass()
+
+ def setUp(self):
+ super(TestIPVlan0, self).setUp()
+
+ self.create_pg_interfaces(range(2))
+ mpls_tbl = VppMplsTable(self, 0)
+ mpls_tbl.add_vpp_config()
+
+ for i in self.pg_interfaces:
+ i.admin_up()
+ i.config_ip4()
+ i.resolve_arp()
+ i.enable_mpls()
+
+ def tearDown(self):
+ for i in self.pg_interfaces:
+ i.disable_mpls()
+ i.unconfig_ip4()
+ i.admin_down()
+ super(TestIPVlan0, self).tearDown()
+
+ def test_ip_vlan_0(self):
+ """ IP VLAN-0 """
+
+ pkts = (Ether(src=self.pg0.remote_mac,
+ dst=self.pg0.local_mac) /
+ Dot1Q(vlan=0) /
+ IP(dst=self.pg1.remote_ip4,
+ src=self.pg0.remote_ip4) /
+ UDP(sport=1234, dport=1234) /
+ Raw(b'\xa5' * 100)) * NUM_PKTS
+
+ #
+ # Expect that packets sent on VLAN-0 are forwarded on the
+ # main interface.
+ #
+ self.send_and_expect(self.pg0, pkts, self.pg1)
+
+
+class TestIPPunt(VppTestCase):
+ """ IPv4 Punt Police/Redirect """
+
+ @classmethod
+ def setUpClass(cls):
+ super(TestIPPunt, cls).setUpClass()
+
+ @classmethod
+ def tearDownClass(cls):
+ super(TestIPPunt, cls).tearDownClass()
+
+ def setUp(self):
+ super(TestIPPunt, self).setUp()
+
+ self.create_pg_interfaces(range(4))
+
+ for i in self.pg_interfaces:
+ i.admin_up()
+ i.config_ip4()
+ i.resolve_arp()
+
+ def tearDown(self):
+ super(TestIPPunt, self).tearDown()
+ for i in self.pg_interfaces:
+ i.unconfig_ip4()
+ i.admin_down()
+
+ def test_ip_punt(self):
+ """ IP punt police and redirect """
+
+ # use UDP packet that have a port we need to explicitly
+ # register to get punted.
+ pt_l4 = VppEnum.vl_api_punt_type_t.PUNT_API_TYPE_L4
+ af_ip4 = VppEnum.vl_api_address_family_t.ADDRESS_IP4
+ udp_proto = VppEnum.vl_api_ip_proto_t.IP_API_PROTO_UDP
+ punt_udp = {
+ 'type': pt_l4,
+ 'punt': {
+ 'l4': {
+ 'af': af_ip4,
+ 'protocol': udp_proto,
+ 'port': 1234,
+ }
+ }
+ }
+
+ self.vapi.set_punt(is_add=1, punt=punt_udp)
+
+ p = (Ether(src=self.pg0.remote_mac,
+ dst=self.pg0.local_mac) /
+ IP(src=self.pg0.remote_ip4, dst=self.pg0.local_ip4) /
+ UDP(sport=1234, dport=1234) /
+ Raw(b'\xa5' * 100))
+
+ pkts = p * 1025
+
+ #
+ # Configure a punt redirect via pg1.
+ #
+ nh_addr = self.pg1.remote_ip4
+ self.vapi.ip_punt_redirect(self.pg0.sw_if_index,
+ self.pg1.sw_if_index,
+ nh_addr)
+
+ self.send_and_expect(self.pg0, pkts, self.pg1)
+
+ #
+ # add a policer
+ #
+ policer = VppPolicer(self, "ip4-punt", 400, 0, 10, 0, rate_type=1)
+ policer.add_vpp_config()
+ self.vapi.ip_punt_police(policer.policer_index)
+
+ self.vapi.cli("clear trace")
+ self.pg0.add_stream(pkts)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+
+ #
+ # the number of packet received should be greater than 0,
+ # but not equal to the number sent, since some were policed
+ #
+ rx = self.pg1._get_capture(1)
+ self.assertGreater(len(rx), 0)
+ self.assertLess(len(rx), len(pkts))
+
+ #
+ # remove the policer. back to full rx
+ #
+ self.vapi.ip_punt_police(policer.policer_index, is_add=0)
+ policer.remove_vpp_config()
+ self.send_and_expect(self.pg0, pkts, self.pg1)
+
+ #
+ # remove the redirect. expect full drop.
+ #
+ self.vapi.ip_punt_redirect(self.pg0.sw_if_index,
+ self.pg1.sw_if_index,
+ nh_addr,
+ is_add=0)
+ self.send_and_assert_no_replies(self.pg0, pkts,
+ "IP no punt config")
+
+ #
+ # Add a redirect that is not input port selective
+ #
+ self.vapi.ip_punt_redirect(0xffffffff,
+ self.pg1.sw_if_index,
+ nh_addr)
+ self.send_and_expect(self.pg0, pkts, self.pg1)
+
+ self.vapi.ip_punt_redirect(0xffffffff,
+ self.pg1.sw_if_index,
+ nh_addr,
+ is_add=0)
+
+ def test_ip_punt_dump(self):
+ """ IP4 punt redirect dump"""
+
+ #
+ # Configure a punt redirects
+ #
+ nh_address = self.pg3.remote_ip4
+ self.vapi.ip_punt_redirect(self.pg0.sw_if_index,
+ self.pg3.sw_if_index,
+ nh_address)
+ self.vapi.ip_punt_redirect(self.pg1.sw_if_index,
+ self.pg3.sw_if_index,
+ nh_address)
+ self.vapi.ip_punt_redirect(self.pg2.sw_if_index,
+ self.pg3.sw_if_index,
+ '0.0.0.0')
+
+ #
+ # Dump pg0 punt redirects
+ #
+ punts = self.vapi.ip_punt_redirect_dump(self.pg0.sw_if_index)
+ for p in punts:
+ self.assertEqual(p.punt.rx_sw_if_index, self.pg0.sw_if_index)
+
+ #
+ # Dump punt redirects for all interfaces
+ #
+ punts = self.vapi.ip_punt_redirect_dump(0xffffffff)
+ self.assertEqual(len(punts), 3)
+ for p in punts:
+ self.assertEqual(p.punt.tx_sw_if_index, self.pg3.sw_if_index)
+ self.assertNotEqual(punts[1].punt.nh, self.pg3.remote_ip4)
+ self.assertEqual(str(punts[2].punt.nh), '0.0.0.0')
+
+
+class TestIPDeag(VppTestCase):
+ """ IPv4 Deaggregate Routes """
+
+ @classmethod
+ def setUpClass(cls):
+ super(TestIPDeag, cls).setUpClass()
+
+ @classmethod
+ def tearDownClass(cls):
+ super(TestIPDeag, cls).tearDownClass()
+
+ def setUp(self):
+ super(TestIPDeag, self).setUp()
+
+ self.create_pg_interfaces(range(3))
+
+ for i in self.pg_interfaces:
+ i.admin_up()
+ i.config_ip4()
+ i.resolve_arp()
+
+ def tearDown(self):
+ super(TestIPDeag, self).tearDown()
+ for i in self.pg_interfaces:
+ i.unconfig_ip4()
+ i.admin_down()
+
+ def test_ip_deag(self):
+ """ IP Deag Routes """
+
+ #
+ # Create a table to be used for:
+ # 1 - another destination address lookup
+ # 2 - a source address lookup
+ #
+ table_dst = VppIpTable(self, 1)
+ table_src = VppIpTable(self, 2)
+ table_dst.add_vpp_config()
+ table_src.add_vpp_config()
+
+ #
+ # Add a route in the default table to point to a deag/
+ # second lookup in each of these tables
+ #
+ route_to_dst = VppIpRoute(self, "1.1.1.1", 32,
+ [VppRoutePath("0.0.0.0",
+ 0xffffffff,
+ nh_table_id=1)])
+ route_to_src = VppIpRoute(
+ self, "1.1.1.2", 32,
+ [VppRoutePath("0.0.0.0",
+ 0xffffffff,
+ nh_table_id=2,
+ type=FibPathType.FIB_PATH_TYPE_SOURCE_LOOKUP)])
+ route_to_dst.add_vpp_config()
+ route_to_src.add_vpp_config()
+
+ #
+ # packets to these destination are dropped, since they'll
+ # hit the respective default routes in the second table
+ #
+ p_dst = (Ether(src=self.pg0.remote_mac,
+ dst=self.pg0.local_mac) /
+ IP(src="5.5.5.5", dst="1.1.1.1") /
+ TCP(sport=1234, dport=1234) /
+ Raw(b'\xa5' * 100))
+ p_src = (Ether(src=self.pg0.remote_mac,
+ dst=self.pg0.local_mac) /
+ IP(src="2.2.2.2", dst="1.1.1.2") /
+ TCP(sport=1234, dport=1234) /
+ Raw(b'\xa5' * 100))
+ pkts_dst = p_dst * 257
+ pkts_src = p_src * 257
+
+ self.send_and_assert_no_replies(self.pg0, pkts_dst,
+ "IP in dst table")
+ self.send_and_assert_no_replies(self.pg0, pkts_src,
+ "IP in src table")
+
+ #
+ # add a route in the dst table to forward via pg1
+ #
+ route_in_dst = VppIpRoute(self, "1.1.1.1", 32,
+ [VppRoutePath(self.pg1.remote_ip4,
+ self.pg1.sw_if_index)],
+ table_id=1)
+ route_in_dst.add_vpp_config()
+
+ self.send_and_expect(self.pg0, pkts_dst, self.pg1)
+
+ #
+ # add a route in the src table to forward via pg2
+ #
+ route_in_src = VppIpRoute(self, "2.2.2.2", 32,
+ [VppRoutePath(self.pg2.remote_ip4,
+ self.pg2.sw_if_index)],
+ table_id=2)
+ route_in_src.add_vpp_config()
+ self.send_and_expect(self.pg0, pkts_src, self.pg2)
+
+ #
+ # loop in the lookup DP
+ #
+ route_loop = VppIpRoute(self, "2.2.2.3", 32,
+ [VppRoutePath("0.0.0.0",
+ 0xffffffff,
+ nh_table_id=0)])
+ route_loop.add_vpp_config()
+
+ p_l = (Ether(src=self.pg0.remote_mac,
+ dst=self.pg0.local_mac) /
+ IP(src="2.2.2.4", dst="2.2.2.3") /
+ TCP(sport=1234, dport=1234) /
+ Raw(b'\xa5' * 100))
+
+ self.send_and_assert_no_replies(self.pg0, p_l * 257,
+ "IP lookup loop")
+
+
+class TestIPInput(VppTestCase):
+ """ IPv4 Input Exceptions """
+
+ @classmethod
+ def setUpClass(cls):
+ super(TestIPInput, cls).setUpClass()
+
+ @classmethod
+ def tearDownClass(cls):
+ super(TestIPInput, cls).tearDownClass()
+
+ def setUp(self):
+ super(TestIPInput, self).setUp()
+
+ self.create_pg_interfaces(range(2))
+
+ for i in self.pg_interfaces:
+ i.admin_up()
+ i.config_ip4()
+ i.resolve_arp()
+
+ def tearDown(self):
+ super(TestIPInput, self).tearDown()
+ for i in self.pg_interfaces:
+ i.unconfig_ip4()
+ i.admin_down()
+
+ def test_ip_input(self):
+ """ IP Input Exceptions """
+
+ # i can't find a way in scapy to construct an IP packet
+ # with a length less than the IP header length
+
+ #
+ # Packet too short - this is forwarded
+ #
+ p_short = (Ether(src=self.pg0.remote_mac,
+ dst=self.pg0.local_mac) /
+ IP(src=self.pg0.remote_ip4,
+ dst=self.pg1.remote_ip4,
+ len=40) /
+ UDP(sport=1234, dport=1234) /
+ Raw(b'\xa5' * 100))
+
+ rx = self.send_and_expect(self.pg0, p_short * NUM_PKTS, self.pg1)
+
+ #
+ # Packet too long - this is dropped
+ #
+ p_long = (Ether(src=self.pg0.remote_mac,
+ dst=self.pg0.local_mac) /
+ IP(src=self.pg0.remote_ip4,
+ dst=self.pg1.remote_ip4,
+ len=400) /
+ UDP(sport=1234, dport=1234) /
+ Raw(b'\xa5' * 100))
+
+ rx = self.send_and_assert_no_replies(self.pg0, p_long * NUM_PKTS,
+ "too long")
+
+ #
+ # bad chksum - this is dropped
+ #
+ p_chksum = (Ether(src=self.pg0.remote_mac,
+ dst=self.pg0.local_mac) /
+ IP(src=self.pg0.remote_ip4,
+ dst=self.pg1.remote_ip4,
+ chksum=400) /
+ UDP(sport=1234, dport=1234) /
+ Raw(b'\xa5' * 100))
+
+ rx = self.send_and_assert_no_replies(self.pg0, p_chksum * NUM_PKTS,
+ "bad checksum")
+
+ #
+ # bad version - this is dropped
+ #
+ p_ver = (Ether(src=self.pg0.remote_mac,
+ dst=self.pg0.local_mac) /
+ IP(src=self.pg0.remote_ip4,
+ dst=self.pg1.remote_ip4,
+ version=3) /
+ UDP(sport=1234, dport=1234) /
+ Raw(b'\xa5' * 100))
+
+ rx = self.send_and_assert_no_replies(self.pg0, p_ver * NUM_PKTS,
+ "funky version")
+
+ #
+ # fragment offset 1 - this is dropped
+ #
+ p_frag = (Ether(src=self.pg0.remote_mac,
+ dst=self.pg0.local_mac) /
+ IP(src=self.pg0.remote_ip4,
+ dst=self.pg1.remote_ip4,
+ frag=1) /
+ UDP(sport=1234, dport=1234) /
+ Raw(b'\xa5' * 100))
+
+ rx = self.send_and_assert_no_replies(self.pg0, p_frag * NUM_PKTS,
+ "frag offset")
+
+ #
+ # TTL expired packet
+ #
+ p_ttl = (Ether(src=self.pg0.remote_mac,
+ dst=self.pg0.local_mac) /
+ IP(src=self.pg0.remote_ip4,
+ dst=self.pg1.remote_ip4,
+ ttl=1) /
+ UDP(sport=1234, dport=1234) /
+ Raw(b'\xa5' * 100))
+
+ rx = self.send_and_expect(self.pg0, p_ttl * NUM_PKTS, self.pg0)
+
+ rx = rx[0]
+ icmp = rx[ICMP]
+
+ self.assertEqual(icmptypes[icmp.type], "time-exceeded")
+ self.assertEqual(icmpcodes[icmp.type][icmp.code],
+ "ttl-zero-during-transit")
+ self.assertEqual(icmp.src, self.pg0.remote_ip4)
+ self.assertEqual(icmp.dst, self.pg1.remote_ip4)
+
+ #
+ # MTU exceeded
+ #
+ p_mtu = (Ether(src=self.pg0.remote_mac,
+ dst=self.pg0.local_mac) /
+ IP(src=self.pg0.remote_ip4,
+ dst=self.pg1.remote_ip4,
+ ttl=10, flags='DF') /
+ UDP(sport=1234, dport=1234) /
+ Raw(b'\xa5' * 2000))
+
+ self.vapi.sw_interface_set_mtu(self.pg1.sw_if_index, [1500, 0, 0, 0])
+
+ rx = self.send_and_expect(self.pg0, p_mtu * NUM_PKTS, self.pg0)
+ rx = rx[0]
+ icmp = rx[ICMP]
+
+ self.assertEqual(icmptypes[icmp.type], "dest-unreach")
+ self.assertEqual(icmpcodes[icmp.type][icmp.code],
+ "fragmentation-needed")
+ self.assertEqual(icmp.src, self.pg0.remote_ip4)
+ self.assertEqual(icmp.dst, self.pg1.remote_ip4)
+
+ self.vapi.sw_interface_set_mtu(self.pg1.sw_if_index, [2500, 0, 0, 0])
+ rx = self.send_and_expect(self.pg0, p_mtu * NUM_PKTS, self.pg1)
+
+ # Reset MTU for subsequent tests
+ self.vapi.sw_interface_set_mtu(self.pg1.sw_if_index, [9000, 0, 0, 0])
+
+ #
+ # source address 0.0.0.0 and 25.255.255.255 and for-us
+ #
+ p_s0 = (Ether(src=self.pg0.remote_mac,
+ dst=self.pg0.local_mac) /
+ IP(src="0.0.0.0",
+ dst=self.pg0.local_ip4) /
+ ICMP(id=4, seq=4) /
+ Raw(load=b'\x0a' * 18))
+ rx = self.send_and_assert_no_replies(self.pg0, p_s0 * 17)
+
+ p_s0 = (Ether(src=self.pg0.remote_mac,
+ dst=self.pg0.local_mac) /
+ IP(src="255.255.255.255",
+ dst=self.pg0.local_ip4) /
+ ICMP(id=4, seq=4) /
+ Raw(load=b'\x0a' * 18))
+ rx = self.send_and_assert_no_replies(self.pg0, p_s0 * 17)
+
+
+class TestIPDirectedBroadcast(VppTestCase):
+ """ IPv4 Directed Broadcast """
+
+ @classmethod
+ def setUpClass(cls):
+ super(TestIPDirectedBroadcast, cls).setUpClass()
+
+ @classmethod
+ def tearDownClass(cls):
+ super(TestIPDirectedBroadcast, cls).tearDownClass()
+
+ def setUp(self):
+ super(TestIPDirectedBroadcast, self).setUp()
+
+ self.create_pg_interfaces(range(2))
+
+ for i in self.pg_interfaces:
+ i.admin_up()
+
+ def tearDown(self):
+ super(TestIPDirectedBroadcast, self).tearDown()
+ for i in self.pg_interfaces:
+ i.admin_down()
+
+ def test_ip_input(self):
+ """ IP Directed Broadcast """
+
+ #
+ # set the directed broadcast on pg0 first, then config IP4 addresses
+ # for pg1 directed broadcast is always disabled
+ self.vapi.sw_interface_set_ip_directed_broadcast(
+ self.pg0.sw_if_index, 1)
+
+ p0 = (Ether(src=self.pg1.remote_mac,
+ dst=self.pg1.local_mac) /
+ IP(src="1.1.1.1",
+ dst=self.pg0._local_ip4_bcast) /
+ UDP(sport=1234, dport=1234) /
+ Raw(b'\xa5' * 2000))
+ p1 = (Ether(src=self.pg0.remote_mac,
+ dst=self.pg0.local_mac) /
+ IP(src="1.1.1.1",
+ dst=self.pg1._local_ip4_bcast) /
+ UDP(sport=1234, dport=1234) /
+ Raw(b'\xa5' * 2000))
+
+ self.pg0.config_ip4()
+ self.pg0.resolve_arp()
+ self.pg1.config_ip4()
+ self.pg1.resolve_arp()
+
+ #
+ # test packet is L2 broadcast
+ #
+ rx = self.send_and_expect(self.pg1, p0 * NUM_PKTS, self.pg0)
+ self.assertTrue(rx[0][Ether].dst, "ff:ff:ff:ff:ff:ff")
+
+ self.send_and_assert_no_replies(self.pg0, p1 * NUM_PKTS,
+ "directed broadcast disabled")
+
+ #
+ # toggle directed broadcast on pg0
+ #
+ self.vapi.sw_interface_set_ip_directed_broadcast(
+ self.pg0.sw_if_index, 0)
+ self.send_and_assert_no_replies(self.pg1, p0 * NUM_PKTS,
+ "directed broadcast disabled")
+
+ self.vapi.sw_interface_set_ip_directed_broadcast(
+ self.pg0.sw_if_index, 1)
+ rx = self.send_and_expect(self.pg1, p0 * NUM_PKTS, self.pg0)
+
+ self.pg0.unconfig_ip4()
+ self.pg1.unconfig_ip4()
+
+
+class TestIPLPM(VppTestCase):
+ """ IPv4 longest Prefix Match """
+
+ @classmethod
+ def setUpClass(cls):
+ super(TestIPLPM, cls).setUpClass()
+
+ @classmethod
+ def tearDownClass(cls):
+ super(TestIPLPM, cls).tearDownClass()
+
+ def setUp(self):
+ super(TestIPLPM, self).setUp()
+
+ self.create_pg_interfaces(range(4))
+
+ for i in self.pg_interfaces:
+ i.admin_up()
+ i.config_ip4()
+ i.resolve_arp()
+
+ def tearDown(self):
+ super(TestIPLPM, self).tearDown()
+ for i in self.pg_interfaces:
+ i.admin_down()
+ i.unconfig_ip4()
+
+ def test_ip_lpm(self):
+ """ IP longest Prefix Match """
+
+ s_24 = VppIpRoute(self, "10.1.2.0", 24,
+ [VppRoutePath(self.pg1.remote_ip4,
+ self.pg1.sw_if_index)])
+ s_24.add_vpp_config()
+ s_8 = VppIpRoute(self, "10.0.0.0", 8,
+ [VppRoutePath(self.pg2.remote_ip4,
+ self.pg2.sw_if_index)])
+ s_8.add_vpp_config()
+
+ p_8 = (Ether(src=self.pg0.remote_mac,
+ dst=self.pg0.local_mac) /
+ IP(src="1.1.1.1",
+ dst="10.1.1.1") /
+ UDP(sport=1234, dport=1234) /
+ Raw(b'\xa5' * 2000))
+ p_24 = (Ether(src=self.pg0.remote_mac,
+ dst=self.pg0.local_mac) /
+ IP(src="1.1.1.1",
+ dst="10.1.2.1") /
+ UDP(sport=1234, dport=1234) /
+ Raw(b'\xa5' * 2000))
+
+ self.logger.info(self.vapi.cli("sh ip fib mtrie"))
+ rx = self.send_and_expect(self.pg0, p_8 * NUM_PKTS, self.pg2)
+ rx = self.send_and_expect(self.pg0, p_24 * NUM_PKTS, self.pg1)
+
+
+class TestIPv4Frag(VppTestCase):
+ """ IPv4 fragmentation """
+
+ @classmethod
+ def setUpClass(cls):
+ super(TestIPv4Frag, cls).setUpClass()
+
+ cls.create_pg_interfaces([0, 1])
+ cls.src_if = cls.pg0
+ cls.dst_if = cls.pg1
+
+ # setup all interfaces
+ for i in cls.pg_interfaces:
+ i.admin_up()
+ i.config_ip4()
+ i.resolve_arp()
+
+ @classmethod
+ def tearDownClass(cls):
+ super(TestIPv4Frag, cls).tearDownClass()
+
+ def test_frag_large_packets(self):
+ """ Fragmentation of large packets """
+
+ self.vapi.cli("adjacency counters enable")
+
+ p = (Ether(dst=self.src_if.local_mac, src=self.src_if.remote_mac) /
+ IP(src=self.src_if.remote_ip4, dst=self.dst_if.remote_ip4) /
+ UDP(sport=1234, dport=5678) / Raw())
+ self.extend_packet(p, 6000, "abcde")
+ saved_payload = p[Raw].load
+
+ nbr = VppNeighbor(self,
+ self.dst_if.sw_if_index,
+ self.dst_if.remote_mac,
+ self.dst_if.remote_ip4).add_vpp_config()
+
+ # Force fragmentation by setting MTU of output interface
+ # lower than packet size
+ self.vapi.sw_interface_set_mtu(self.dst_if.sw_if_index,
+ [5000, 0, 0, 0])
+
+ self.pg_enable_capture()
+ self.src_if.add_stream(p)
+ self.pg_start()
+
+ # Expecting 3 fragments because size of created fragments currently
+ # cannot be larger then VPP buffer size (which is 2048)
+ packets = self.dst_if.get_capture(3)
+
+ # we should show 3 packets thru the neighbor
+ self.assertEqual(3, nbr.get_stats()['packets'])
+
+ # Assume VPP sends the fragments in order
+ payload = b''
+ for p in packets:
+ payload_offset = p.frag * 8
+ if payload_offset > 0:
+ payload_offset -= 8 # UDP header is not in payload
+ self.assert_equal(payload_offset, len(payload))
+ payload += p[Raw].load
+ self.assert_equal(payload, saved_payload, "payload")
+
+
+class TestIPReplace(VppTestCase):
+ """ IPv4 Table Replace """
+
+ @classmethod
+ def setUpClass(cls):
+ super(TestIPReplace, cls).setUpClass()
+
+ @classmethod
+ def tearDownClass(cls):
+ super(TestIPReplace, cls).tearDownClass()
+
+ def setUp(self):
+ super(TestIPReplace, self).setUp()
+
+ self.create_pg_interfaces(range(4))
+
+ table_id = 1
+ self.tables = []
+
+ for i in self.pg_interfaces:
+ i.admin_up()
+ i.config_ip4()
+ i.resolve_arp()
+ i.generate_remote_hosts(2)
+ self.tables.append(VppIpTable(self, table_id).add_vpp_config())
+ table_id += 1
+
+ def tearDown(self):
+ super(TestIPReplace, self).tearDown()
+ for i in self.pg_interfaces:
+ i.admin_down()
+ i.unconfig_ip4()
+
+ def test_replace(self):
+ """ IP Table Replace """
+
+ N_ROUTES = 20
+ links = [self.pg0, self.pg1, self.pg2, self.pg3]
+ routes = [[], [], [], []]
+
+ # load up the tables with some routes
+ for ii, t in enumerate(self.tables):
+ for jj in range(N_ROUTES):
+ uni = VppIpRoute(
+ self, "10.0.0.%d" % jj, 32,
+ [VppRoutePath(links[ii].remote_hosts[0].ip4,
+ links[ii].sw_if_index),
+ VppRoutePath(links[ii].remote_hosts[1].ip4,
+ links[ii].sw_if_index)],
+ table_id=t.table_id).add_vpp_config()
+ multi = VppIpMRoute(
+ self, "0.0.0.0",
+ "239.0.0.%d" % jj, 32,
+ MRouteEntryFlags.MFIB_ENTRY_FLAG_NONE,
+ [VppMRoutePath(self.pg0.sw_if_index,
+ MRouteItfFlags.MFIB_ITF_FLAG_ACCEPT),
+ VppMRoutePath(self.pg1.sw_if_index,
+ MRouteItfFlags.MFIB_ITF_FLAG_FORWARD),
+ VppMRoutePath(self.pg2.sw_if_index,
+ MRouteItfFlags.MFIB_ITF_FLAG_FORWARD),
+ VppMRoutePath(self.pg3.sw_if_index,
+ MRouteItfFlags.MFIB_ITF_FLAG_FORWARD)],
+ table_id=t.table_id).add_vpp_config()
+ routes[ii].append({'uni': uni,
+ 'multi': multi})
+
+ #
+ # replace the tables a few times
+ #
+ for kk in range(3):
+ # replace_begin each table
+ for t in self.tables:
+ t.replace_begin()
+
+ # all the routes are still there
+ for ii, t in enumerate(self.tables):
+ dump = t.dump()
+ mdump = t.mdump()
+ for r in routes[ii]:
+ self.assertTrue(find_route_in_dump(dump, r['uni'], t))
+ self.assertTrue(find_mroute_in_dump(mdump, r['multi'], t))
+
+ # redownload the even numbered routes
+ for ii, t in enumerate(self.tables):
+ for jj in range(0, N_ROUTES, 2):
+ routes[ii][jj]['uni'].add_vpp_config()
+ routes[ii][jj]['multi'].add_vpp_config()
+
+ # signal each table replace_end
+ for t in self.tables:
+ t.replace_end()
+
+ # we should find the even routes, but not the odd
+ for ii, t in enumerate(self.tables):
+ dump = t.dump()
+ mdump = t.mdump()
+ for jj in range(0, N_ROUTES, 2):
+ self.assertTrue(find_route_in_dump(
+ dump, routes[ii][jj]['uni'], t))
+ self.assertTrue(find_mroute_in_dump(
+ mdump, routes[ii][jj]['multi'], t))
+ for jj in range(1, N_ROUTES - 1, 2):
+ self.assertFalse(find_route_in_dump(
+ dump, routes[ii][jj]['uni'], t))
+ self.assertFalse(find_mroute_in_dump(
+ mdump, routes[ii][jj]['multi'], t))
+
+ # reload all the routes
+ for ii, t in enumerate(self.tables):
+ for r in routes[ii]:
+ r['uni'].add_vpp_config()
+ r['multi'].add_vpp_config()
+
+ # all the routes are still there
+ for ii, t in enumerate(self.tables):
+ dump = t.dump()
+ mdump = t.mdump()
+ for r in routes[ii]:
+ self.assertTrue(find_route_in_dump(dump, r['uni'], t))
+ self.assertTrue(find_mroute_in_dump(mdump, r['multi'], t))
+
+ #
+ # finally flush the tables for good measure
+ #
+ for t in self.tables:
+ t.flush()
+ self.assertEqual(len(t.dump()), 5)
+ self.assertEqual(len(t.mdump()), 3)
+
+
+class TestIPCover(VppTestCase):
+ """ IPv4 Table Cover """
+
+ @classmethod
+ def setUpClass(cls):
+ super(TestIPCover, cls).setUpClass()
+
+ @classmethod
+ def tearDownClass(cls):
+ super(TestIPCover, cls).tearDownClass()
+
+ def setUp(self):
+ super(TestIPCover, self).setUp()
+
+ self.create_pg_interfaces(range(4))
+
+ table_id = 1
+ self.tables = []
+
+ for i in self.pg_interfaces:
+ i.admin_up()
+ i.config_ip4()
+ i.resolve_arp()
+ i.generate_remote_hosts(2)
+ self.tables.append(VppIpTable(self, table_id).add_vpp_config())
+ table_id += 1
+
+ def tearDown(self):
+ super(TestIPCover, self).tearDown()
+ for i in self.pg_interfaces:
+ i.admin_down()
+ i.unconfig_ip4()
+
+ def test_cover(self):
+ """ IP Table Cover """
+
+ # add a loop back with a /32 prefix
+ lo = VppLoInterface(self)
+ lo.admin_up()
+ a = VppIpInterfaceAddress(self, lo, "127.0.0.1", 32).add_vpp_config()
+
+ # add a neighbour that matches the loopback's /32
+ nbr = VppNeighbor(self,
+ lo.sw_if_index,
+ lo.remote_mac,
+ "127.0.0.1").add_vpp_config()
+
+ # add the default route which will be the cover for /32
+ r = VppIpRoute(self, "0.0.0.0", 0,
+ [VppRoutePath("127.0.0.1",
+ lo.sw_if_index)],
+ register=False).add_vpp_config()
+
+ # add/remove/add a longer mask cover
+ r = VppIpRoute(self, "127.0.0.0", 8,
+ [VppRoutePath("127.0.0.1",
+ lo.sw_if_index)]).add_vpp_config()
+ r.remove_vpp_config()
+ r.add_vpp_config()
+
+ # remove the default route
+ r.remove_vpp_config()
+
+
+class TestIP4Replace(VppTestCase):
+ """ IPv4 Interface Address Replace """
+
+ @classmethod
+ def setUpClass(cls):
+ super(TestIP4Replace, cls).setUpClass()
+
+ @classmethod
+ def tearDownClass(cls):
+ super(TestIP4Replace, cls).tearDownClass()
+
+ def setUp(self):
+ super(TestIP4Replace, self).setUp()
+
+ self.create_pg_interfaces(range(4))
+
+ for i in self.pg_interfaces:
+ i.admin_up()
+
+ def tearDown(self):
+ super(TestIP4Replace, self).tearDown()
+ for i in self.pg_interfaces:
+ i.admin_down()
+
+ def get_n_pfxs(self, intf):
+ return len(self.vapi.ip_address_dump(intf.sw_if_index))
+
+ def test_replace(self):
+ """ IP interface address replace """
+
+ intf_pfxs = [[], [], [], []]
+
+ # add prefixes to each of the interfaces
+ for i in range(len(self.pg_interfaces)):
+ intf = self.pg_interfaces[i]
+
+ # 172.16.x.1/24
+ addr = "172.16.%d.1" % intf.sw_if_index
+ a = VppIpInterfaceAddress(self, intf, addr, 24).add_vpp_config()
+ intf_pfxs[i].append(a)
+
+ # 172.16.x.2/24 - a different address in the same subnet as above
+ addr = "172.16.%d.2" % intf.sw_if_index
+ a = VppIpInterfaceAddress(self, intf, addr, 24).add_vpp_config()
+ intf_pfxs[i].append(a)
+
+ # 172.15.x.2/24 - a different address and subnet
+ addr = "172.15.%d.2" % intf.sw_if_index
+ a = VppIpInterfaceAddress(self, intf, addr, 24).add_vpp_config()
+ intf_pfxs[i].append(a)
+
+ # a dump should n_address in it
+ for intf in self.pg_interfaces:
+ self.assertEqual(self.get_n_pfxs(intf), 3)
+
+ #
+ # remove all the address thru a replace
+ #
+ self.vapi.sw_interface_address_replace_begin()
+ self.vapi.sw_interface_address_replace_end()
+ for intf in self.pg_interfaces:
+ self.assertEqual(self.get_n_pfxs(intf), 0)
+
+ #
+ # add all the interface addresses back
+ #
+ for p in intf_pfxs:
+ for v in p:
+ v.add_vpp_config()
+ for intf in self.pg_interfaces:
+ self.assertEqual(self.get_n_pfxs(intf), 3)
+
+ #
+ # replace again, but this time update/re-add the address on the first
+ # two interfaces
+ #
+ self.vapi.sw_interface_address_replace_begin()
+
+ for p in intf_pfxs[:2]:
+ for v in p:
+ v.add_vpp_config()
+
+ self.vapi.sw_interface_address_replace_end()
+
+ # on the first two the address still exist,
+ # on the other two they do not
+ for intf in self.pg_interfaces[:2]:
+ self.assertEqual(self.get_n_pfxs(intf), 3)
+ for p in intf_pfxs[:2]:
+ for v in p:
+ self.assertTrue(v.query_vpp_config())
+ for intf in self.pg_interfaces[2:]:
+ self.assertEqual(self.get_n_pfxs(intf), 0)
+
+ #
+ # add all the interface addresses back on the last two
+ #
+ for p in intf_pfxs[2:]:
+ for v in p:
+ v.add_vpp_config()
+ for intf in self.pg_interfaces:
+ self.assertEqual(self.get_n_pfxs(intf), 3)
+
+ #
+ # replace again, this time add different prefixes on all the interfaces
+ #
+ self.vapi.sw_interface_address_replace_begin()
+
+ pfxs = []
+ for intf in self.pg_interfaces:
+ # 172.18.x.1/24
+ addr = "172.18.%d.1" % intf.sw_if_index
+ pfxs.append(VppIpInterfaceAddress(self, intf, addr,
+ 24).add_vpp_config())
+
+ self.vapi.sw_interface_address_replace_end()
+
+ # only .18 should exist on each interface
+ for intf in self.pg_interfaces:
+ self.assertEqual(self.get_n_pfxs(intf), 1)
+ for pfx in pfxs:
+ self.assertTrue(pfx.query_vpp_config())
+
+ #
+ # remove everything
+ #
+ self.vapi.sw_interface_address_replace_begin()
+ self.vapi.sw_interface_address_replace_end()
+ for intf in self.pg_interfaces:
+ self.assertEqual(self.get_n_pfxs(intf), 0)
+
+ #
+ # add prefixes to each interface. post-begin add the prefix from
+ # interface X onto interface Y. this would normally be an error
+ # since it would generate a 'duplicate address' warning. but in
+ # this case, since what is newly downloaded is sane, it's ok
+ #
+ for intf in self.pg_interfaces:
+ # 172.18.x.1/24
+ addr = "172.18.%d.1" % intf.sw_if_index
+ VppIpInterfaceAddress(self, intf, addr, 24).add_vpp_config()
+
+ self.vapi.sw_interface_address_replace_begin()
+
+ pfxs = []
+ for intf in self.pg_interfaces:
+ # 172.18.x.1/24
+ addr = "172.18.%d.1" % (intf.sw_if_index + 1)
+ pfxs.append(VppIpInterfaceAddress(self, intf,
+ addr, 24).add_vpp_config())
+
+ self.vapi.sw_interface_address_replace_end()
+
+ self.logger.info(self.vapi.cli("sh int addr"))
+
+ for intf in self.pg_interfaces:
+ self.assertEqual(self.get_n_pfxs(intf), 1)
+ for pfx in pfxs:
+ self.assertTrue(pfx.query_vpp_config())
+
+
if __name__ == '__main__':
unittest.main(testRunner=VppTestRunner)
Code Review / vpp.git / blobdiff