-#!/usr/bin/env python
+#!/usr/bin/env python3
+import socket
+from socket import inet_pton, inet_ntop
import unittest
-from socket import AF_INET6
+
+from parameterized import parameterized
+import scapy.compat
+import scapy.layers.inet6 as inet6
+from scapy.contrib.mpls import MPLS
+from scapy.layers.inet6 import IPv6, ICMPv6ND_NS, ICMPv6ND_RS, \
+ ICMPv6ND_RA, ICMPv6NDOptMTU, ICMPv6NDOptSrcLLAddr, ICMPv6NDOptPrefixInfo, \
+ ICMPv6ND_NA, ICMPv6NDOptDstLLAddr, ICMPv6DestUnreach, icmp6types, \
+ ICMPv6TimeExceeded, ICMPv6EchoRequest, ICMPv6EchoReply, \
+ IPv6ExtHdrHopByHop, ICMPv6MLReport2, ICMPv6MLDMultAddrRec
+from scapy.layers.l2 import Ether, Dot1Q
+from scapy.packet import Raw
+from scapy.utils6 import in6_getnsma, in6_getnsmac, in6_ptop, in6_islladdr, \
+ in6_mactoifaceid
+from six import moves
from framework import VppTestCase, VppTestRunner
-from vpp_sub_interface import VppSubInterface, VppDot1QSubint
+from util import ppp, ip6_normalize, mk_ll_addr
+from vpp_ip import DpoProto
+from vpp_ip_route import VppIpRoute, VppRoutePath, find_route, VppIpMRoute, \
+ VppMRoutePath, MRouteItfFlags, MRouteEntryFlags, VppMplsIpBind, \
+ VppMplsRoute, VppMplsTable, VppIpTable, FibPathType, FibPathProto, \
+ VppIpInterfaceAddress, find_route_in_dump, find_mroute_in_dump
+from vpp_neighbor import find_nbr, VppNeighbor
from vpp_pg_interface import is_ipv6_misc
-from vpp_neighbor import find_nbr
-
-from scapy.packet import Raw
-from scapy.layers.l2 import Ether, Dot1Q
-from scapy.layers.inet6 import IPv6, UDP, ICMPv6ND_NS, ICMPv6ND_RS, \
- ICMPv6ND_RA, ICMPv6NDOptSrcLLAddr, getmacbyip6, ICMPv6MRD_Solicitation, \
- ICMPv6NDOptMTU, ICMPv6NDOptSrcLLAddr, ICMPv6NDOptPrefixInfo, \
- ICMPv6ND_NA, ICMPv6NDOptDstLLAddr
+from vpp_sub_interface import VppSubInterface, VppDot1QSubint
+from vpp_policer import VppPolicer
+from ipaddress import IPv6Network, IPv6Address
-from util import ppp
-from scapy.utils6 import in6_getnsma, in6_getnsmac, in6_ptop, in6_islladdr, \
- in6_mactoifaceid, in6_ismaddr
-from scapy.utils import inet_pton, inet_ntop
+AF_INET6 = socket.AF_INET6
+try:
+ text_type = unicode
+except NameError:
+ text_type = str
-def mk_ll_addr(mac):
- euid = in6_mactoifaceid(mac)
- addr = "fe80::" + euid
- return addr
+NUM_PKTS = 67
class TestIPv6ND(VppTestCase):
in6_ptop(dst_ip))
# and come from the target address
- self.assertEqual(in6_ptop(rx[IPv6].src), in6_ptop(tgt_ip))
+ self.assertEqual(
+ in6_ptop(rx[IPv6].src), in6_ptop(tgt_ip))
# Dest link-layer options should have the router's MAC
dll = rx[ICMPv6NDOptDstLLAddr]
self.assertEqual(dll.lladdr, intf.local_mac)
+ def validate_ns(self, intf, rx, tgt_ip):
+ nsma = in6_getnsma(inet_pton(AF_INET6, tgt_ip))
+ dst_ip = inet_ntop(AF_INET6, nsma)
+
+ # NS is broadcast
+ self.assertEqual(rx[Ether].dst, in6_getnsmac(nsma))
+
+ # and from the router's MAC
+ self.assertEqual(rx[Ether].src, intf.local_mac)
+
+ # the rx'd NS should be addressed to an mcast address
+ # derived from the target address
+ self.assertEqual(
+ in6_ptop(rx[IPv6].dst), in6_ptop(dst_ip))
+
+ # expect the tgt IP in the NS header
+ ns = rx[ICMPv6ND_NS]
+ self.assertEqual(in6_ptop(ns.tgt), in6_ptop(tgt_ip))
+
+ # packet is from the router's local address
+ self.assertEqual(
+ in6_ptop(rx[IPv6].src), intf.local_ip6)
+
+ # Src link-layer options should have the router's MAC
+ sll = rx[ICMPv6NDOptSrcLLAddr]
+ self.assertEqual(sll.lladdr, intf.local_mac)
+
def send_and_expect_ra(self, intf, pkts, remark, dst_ip=None,
filter_out_fn=is_ipv6_misc):
intf.add_stream(pkts)
- self.pg0.add_stream(pkts)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
rx = intf.get_capture(1, filter_out_fn=filter_out_fn)
rx = rx[0]
self.validate_ra(intf, rx, dst_ip)
- def send_and_assert_no_replies(self, intf, pkts, remark):
+ def send_and_expect_na(self, intf, pkts, remark, dst_ip=None,
+ tgt_ip=None,
+ filter_out_fn=is_ipv6_misc):
intf.add_stream(pkts)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
- intf.assert_nothing_captured(remark=remark)
+ rx = intf.get_capture(1, filter_out_fn=filter_out_fn)
+
+ self.assertEqual(len(rx), 1)
+ rx = rx[0]
+ self.validate_na(intf, rx, dst_ip, tgt_ip)
+
+ def send_and_expect_ns(self, tx_intf, rx_intf, pkts, tgt_ip,
+ filter_out_fn=is_ipv6_misc):
+ self.vapi.cli("clear trace")
+ tx_intf.add_stream(pkts)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+ rx = rx_intf.get_capture(1, filter_out_fn=filter_out_fn)
+
+ self.assertEqual(len(rx), 1)
+ rx = rx[0]
+ self.validate_ns(rx_intf, rx, tgt_ip)
+
+ def verify_ip(self, rx, smac, dmac, sip, dip):
+ ether = rx[Ether]
+ self.assertEqual(ether.dst, dmac)
+ self.assertEqual(ether.src, smac)
+
+ ip = rx[IPv6]
+ self.assertEqual(ip.src, sip)
+ self.assertEqual(ip.dst, dip)
class TestIPv6(TestIPv6ND):
def setUpClass(cls):
super(TestIPv6, cls).setUpClass()
+ @classmethod
+ def tearDownClass(cls):
+ super(TestIPv6, 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.
*TODO:* Create AD sub interface
"""
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.config_ip6()
i.resolve_ndp()
- # config 2M FIB entries
- self.config_fib_entries(200)
-
def tearDown(self):
"""Run standard test teardown and log ``show ip6 neighbors``."""
- for i in self.sub_interfaces:
+ for i in self.interfaces:
i.unconfig_ip6()
- i.ip6_disable()
i.admin_down()
+ for i in self.sub_interfaces:
i.remove_vpp_config()
super(TestIPv6, self).tearDown()
self.logger.info(self.vapi.cli("show ip6 neighbors"))
# info(self.vapi.cli("show ip6 fib")) # many entries
- def config_fib_entries(self, count):
- """For each interface add to the FIB table *count* routes to
- "fd02::1/128" destination with interface's local address as next-hop
- address.
-
- :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 = inet_pton(AF_INET6, "fd02::1")
- dest_addr_len = 128
- for i in self.interfaces:
- next_hop_address = i.local_ip6n
- for j in range(count / n_int):
- self.vapi.ip_add_del_route(
- dest_addr, dest_addr_len, next_hop_address, is_ipv6=1)
- 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[IPv6].dst = dst_if.remote_ip6
+ 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, dst_if)
- payload = self.info_to_payload(info)
- p = (Ether(dst=src_if.local_mac, src=src_if.remote_mac) /
- IPv6(src=src_if.remote_ip6, dst=dst_if.remote_ip6) /
- 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) /
+ IPv6(src=src_if.remote_ip6) /
+ inet6.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):
self.assertTrue(Dot1Q not in packet)
try:
ip = packet[IPv6]
- udp = packet[UDP]
- payload_info = self.payload_to_info(str(packet[Raw]))
+ udp = packet[inet6.UDP]
+ 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(
self.assertEqual(packet_index, next_info.index)
saved_packet = next_info.data
# Check standard fields
- self.assertEqual(ip.src, saved_packet[IPv6].src)
- self.assertEqual(ip.dst, saved_packet[IPv6].dst)
- self.assertEqual(udp.sport, saved_packet[UDP].sport)
- self.assertEqual(udp.dport, saved_packet[UDP].dport)
+ self.assertEqual(
+ ip.src, saved_packet[IPv6].src)
+ self.assertEqual(
+ ip.dst, saved_packet[IPv6].dst)
+ self.assertEqual(
+ udp.sport, saved_packet[inet6.UDP].sport)
+ self.assertEqual(
+ udp.dport, saved_packet[inet6.UDP].dport)
except:
self.logger.error(ppp("Unexpected or invalid packet:", packet))
raise
"Interface %s: Packet expected from interface %s "
"didn't arrive" % (dst_if.name, i.name))
+ def test_next_header_anomaly(self):
+ """ IPv6 next header anomaly test
+
+ Test scenario:
+ - ipv6 next header field = Fragment Header (44)
+ - next header is ICMPv6 Echo Request
+ - wait for reassembly
+ """
+ pkt = (Ether(src=self.pg0.local_mac, dst=self.pg0.remote_mac) /
+ IPv6(src=self.pg0.remote_ip6, dst=self.pg0.local_ip6, nh=44) /
+ ICMPv6EchoRequest())
+
+ self.pg0.add_stream(pkt)
+ self.pg_start()
+
+ # wait for reassembly
+ self.sleep(10)
+
def test_fib(self):
""" IPv6 FIB test
- 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)
p = (Ether(dst=in6_getnsmac(nsma)) /
IPv6(dst=d, src="2002::2") /
ICMPv6ND_NS(tgt=self.pg0.local_ip6) /
- ICMPv6NDOptSrcLLAddr(lladdr=self.pg0.remote_mac))
+ ICMPv6NDOptSrcLLAddr(
+ lladdr=self.pg0.remote_mac))
pkts = [p]
self.send_and_assert_no_replies(
p = (Ether(dst=in6_getnsmac(nsma)) /
IPv6(dst=d, src=self.pg0.remote_ip6) /
ICMPv6ND_NS(tgt=self.pg0.local_ip6) /
- ICMPv6NDOptSrcLLAddr(lladdr=self.pg0.remote_mac))
+ ICMPv6NDOptSrcLLAddr(
+ lladdr=self.pg0.remote_mac))
pkts = [p]
self.send_and_assert_no_replies(
p = (Ether(dst=in6_getnsmac(nsma)) /
IPv6(dst=d, src=self.pg0.remote_ip6) /
ICMPv6ND_NS(tgt="fd::ffff") /
- ICMPv6NDOptSrcLLAddr(lladdr=self.pg0.remote_mac))
+ ICMPv6NDOptSrcLLAddr(
+ lladdr=self.pg0.remote_mac))
pkts = [p]
self.send_and_assert_no_replies(self.pg0, pkts,
"No response to NS for unknown target")
- def validate_ra(self, intf, rx, dst_ip=None, mtu=9000, pi_opt=None):
+ #
+ # A neighbor entry that has no associated FIB-entry
+ #
+ self.pg0.generate_remote_hosts(4)
+ nd_entry = VppNeighbor(self,
+ self.pg0.sw_if_index,
+ self.pg0.remote_hosts[2].mac,
+ self.pg0.remote_hosts[2].ip6,
+ is_no_fib_entry=1)
+ nd_entry.add_vpp_config()
+
+ #
+ # check we have the neighbor, but no route
+ #
+ self.assertTrue(find_nbr(self,
+ self.pg0.sw_if_index,
+ self.pg0._remote_hosts[2].ip6))
+ self.assertFalse(find_route(self,
+ self.pg0._remote_hosts[2].ip6,
+ 128))
+
+ #
+ # send an NS from a link local address to the interface's global
+ # address
+ #
+ p = (Ether(dst=in6_getnsmac(nsma), src=self.pg0.remote_mac) /
+ IPv6(
+ dst=d, src=self.pg0._remote_hosts[2].ip6_ll) /
+ ICMPv6ND_NS(tgt=self.pg0.local_ip6) /
+ ICMPv6NDOptSrcLLAddr(
+ lladdr=self.pg0.remote_mac))
+
+ self.send_and_expect_na(self.pg0, p,
+ "NS from link-local",
+ dst_ip=self.pg0._remote_hosts[2].ip6_ll,
+ tgt_ip=self.pg0.local_ip6)
+
+ #
+ # we should have learned an ND entry for the peer's link-local
+ # but not inserted a route to it in the FIB
+ #
+ self.assertTrue(find_nbr(self,
+ self.pg0.sw_if_index,
+ self.pg0._remote_hosts[2].ip6_ll))
+ self.assertFalse(find_route(self,
+ self.pg0._remote_hosts[2].ip6_ll,
+ 128))
+
+ #
+ # An NS to the router's own Link-local
+ #
+ p = (Ether(dst=in6_getnsmac(nsma), src=self.pg0.remote_mac) /
+ IPv6(
+ dst=d, src=self.pg0._remote_hosts[3].ip6_ll) /
+ ICMPv6ND_NS(tgt=self.pg0.local_ip6_ll) /
+ ICMPv6NDOptSrcLLAddr(
+ lladdr=self.pg0.remote_mac))
+
+ self.send_and_expect_na(self.pg0, p,
+ "NS to/from link-local",
+ dst_ip=self.pg0._remote_hosts[3].ip6_ll,
+ tgt_ip=self.pg0.local_ip6_ll)
+
+ #
+ # we should have learned an ND entry for the peer's link-local
+ # but not inserted a route to it in the FIB
+ #
+ self.assertTrue(find_nbr(self,
+ self.pg0.sw_if_index,
+ self.pg0._remote_hosts[3].ip6_ll))
+ self.assertFalse(find_route(self,
+ self.pg0._remote_hosts[3].ip6_ll,
+ 128))
+
+ def test_ns_duplicates(self):
+ """ ND Duplicates"""
+
+ #
+ # Generate some hosts on the LAN
+ #
+ self.pg1.generate_remote_hosts(3)
+
+ #
+ # Add host 1 on pg1 and pg2
+ #
+ ns_pg1 = VppNeighbor(self,
+ self.pg1.sw_if_index,
+ self.pg1.remote_hosts[1].mac,
+ self.pg1.remote_hosts[1].ip6)
+ ns_pg1.add_vpp_config()
+ ns_pg2 = VppNeighbor(self,
+ self.pg2.sw_if_index,
+ self.pg2.remote_mac,
+ self.pg1.remote_hosts[1].ip6)
+ ns_pg2.add_vpp_config()
+
+ #
+ # IP packet destined for pg1 remote host arrives on pg1 again.
+ #
+ p = (Ether(dst=self.pg0.local_mac,
+ src=self.pg0.remote_mac) /
+ IPv6(src=self.pg0.remote_ip6,
+ dst=self.pg1.remote_hosts[1].ip6) /
+ inet6.UDP(sport=1234, dport=1234) /
+ Raw())
+
+ self.pg0.add_stream(p)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+
+ rx1 = self.pg1.get_capture(1)
+
+ self.verify_ip(rx1[0],
+ self.pg1.local_mac,
+ self.pg1.remote_hosts[1].mac,
+ self.pg0.remote_ip6,
+ self.pg1.remote_hosts[1].ip6)
+
+ #
+ # remove the duplicate on pg1
+ # packet stream should generate NSs out of pg1
+ #
+ ns_pg1.remove_vpp_config()
+
+ self.send_and_expect_ns(self.pg0, self.pg1,
+ p, self.pg1.remote_hosts[1].ip6)
+
+ #
+ # Add it back
+ #
+ ns_pg1.add_vpp_config()
+
+ self.pg0.add_stream(p)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+
+ rx1 = self.pg1.get_capture(1)
+
+ self.verify_ip(rx1[0],
+ self.pg1.local_mac,
+ self.pg1.remote_hosts[1].mac,
+ self.pg0.remote_ip6,
+ self.pg1.remote_hosts[1].ip6)
+
+ def validate_ra(self, intf, rx, dst_ip=None, src_ip=None,
+ mtu=9000, pi_opt=None):
if not dst_ip:
dst_ip = intf.remote_ip6
+ if not src_ip:
+ src_ip = mk_ll_addr(intf.local_mac)
# unicasted packets must come to the unicast mac
self.assertEqual(rx[Ether].dst, intf.remote_mac)
# and come from the router's link local
self.assertTrue(in6_islladdr(rx[IPv6].src))
- self.assertEqual(in6_ptop(rx[IPv6].src),
- in6_ptop(mk_ll_addr(intf.local_mac)))
+ self.assertEqual(in6_ptop(rx[IPv6].src), in6_ptop(src_ip))
# it should contain the links MTU
ra = rx[ICMPv6ND_RA]
if not pi_opt:
# the RA should not contain prefix information
- self.assertFalse(ra.haslayer(ICMPv6NDOptPrefixInfo))
+ self.assertFalse(ra.haslayer(
+ ICMPv6NDOptPrefixInfo))
else:
raos = rx.getlayer(ICMPv6NDOptPrefixInfo, 1)
# the options are nested in the scapy packet in way that i cannot
# decipher how to decode. this 1st layer of option always returns
# nested classes, so a direct obj1=obj2 comparison always fails.
- # however, the getlayer(.., 2) does give one instnace.
- # so we cheat here and construct a new opt instnace for comparison
- rd = ICMPv6NDOptPrefixInfo(prefixlen=raos.prefixlen,
- prefix=raos.prefix,
- L=raos.L,
- A=raos.A)
+ # however, the getlayer(.., 2) does give one instance.
+ # so we cheat here and construct a new opt instance for comparison
+ rd = ICMPv6NDOptPrefixInfo(
+ prefixlen=raos.prefixlen,
+ prefix=raos.prefix,
+ L=raos.L,
+ A=raos.A)
if type(pi_opt) is list:
for ii in range(len(pi_opt)):
self.assertEqual(pi_opt[ii], rd)
- rd = rx.getlayer(ICMPv6NDOptPrefixInfo, ii+2)
+ rd = rx.getlayer(
+ ICMPv6NDOptPrefixInfo, ii + 2)
else:
- self.assertEqual(pi_opt, raos)
+ self.assertEqual(pi_opt, raos, 'Expected: %s, received: %s'
+ % (pi_opt.show(dump=True),
+ raos.show(dump=True)))
def send_and_expect_ra(self, intf, pkts, remark, dst_ip=None,
filter_out_fn=is_ipv6_misc,
- opt=None):
+ opt=None,
+ src_ip=None):
+ self.vapi.cli("clear trace")
intf.add_stream(pkts)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
self.assertEqual(len(rx), 1)
rx = rx[0]
- self.validate_ra(intf, rx, dst_ip, pi_opt=opt)
+ self.validate_ra(intf, rx, dst_ip, src_ip=src_ip, pi_opt=opt)
def test_rs(self):
""" IPv6 Router Solicitation Exceptions
self.send_and_assert_no_replies(self.pg0, pkts, "RA rate limited")
#
- # When we reconfiure the IPv6 RA config, we reset the RA rate limiting,
+ # When we reconfigure the IPv6 RA config,
+ # we reset the RA rate limiting,
# so we need to do this before each test below so as not to drop
# packets for rate limiting reasons. Test this works here.
#
#
self.pg0.ip6_ra_config(send_unicast=1)
p = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
- IPv6(dst=self.pg0.local_ip6, src="2002::ffff") /
+ IPv6(dst=self.pg0.local_ip6,
+ src="2002::ffff") /
ICMPv6ND_RS())
pkts = [p]
self.send_and_assert_no_replies(self.pg0, pkts,
#
# Configure The RA to announce the links prefix
#
- self.pg0.ip6_ra_prefix(self.pg0.local_ip6n,
- self.pg0.local_ip6_prefix_len)
+ self.pg0.ip6_ra_prefix('%s/%s' % (self.pg0.local_ip6,
+ self.pg0.local_ip6_prefix_len))
#
# RAs should now contain the prefix information option
#
- opt = ICMPv6NDOptPrefixInfo(prefixlen=self.pg0.local_ip6_prefix_len,
- prefix=self.pg0.local_ip6,
- L=1,
- A=1)
+ opt = ICMPv6NDOptPrefixInfo(
+ prefixlen=self.pg0.local_ip6_prefix_len,
+ prefix=self.pg0.local_ip6,
+ L=1,
+ A=1)
self.pg0.ip6_ra_config(send_unicast=1)
ll = mk_ll_addr(self.pg0.remote_mac)
# Change the prefix info to not off-link
# L-flag is clear
#
- self.pg0.ip6_ra_prefix(self.pg0.local_ip6n,
- self.pg0.local_ip6_prefix_len,
+ self.pg0.ip6_ra_prefix('%s/%s' % (self.pg0.local_ip6,
+ self.pg0.local_ip6_prefix_len),
off_link=1)
- opt = ICMPv6NDOptPrefixInfo(prefixlen=self.pg0.local_ip6_prefix_len,
- prefix=self.pg0.local_ip6,
- L=0,
- A=1)
+ opt = ICMPv6NDOptPrefixInfo(
+ prefixlen=self.pg0.local_ip6_prefix_len,
+ prefix=self.pg0.local_ip6,
+ L=0,
+ A=1)
self.pg0.ip6_ra_config(send_unicast=1)
self.send_and_expect_ra(self.pg0, p,
# Change the prefix info to not off-link, no-autoconfig
# L and A flag are clear in the advert
#
- self.pg0.ip6_ra_prefix(self.pg0.local_ip6n,
- self.pg0.local_ip6_prefix_len,
+ self.pg0.ip6_ra_prefix('%s/%s' % (self.pg0.local_ip6,
+ self.pg0.local_ip6_prefix_len),
off_link=1,
no_autoconfig=1)
- opt = ICMPv6NDOptPrefixInfo(prefixlen=self.pg0.local_ip6_prefix_len,
- prefix=self.pg0.local_ip6,
- L=0,
- A=0)
+ opt = ICMPv6NDOptPrefixInfo(
+ prefixlen=self.pg0.local_ip6_prefix_len,
+ prefix=self.pg0.local_ip6,
+ L=0,
+ A=0)
self.pg0.ip6_ra_config(send_unicast=1)
self.send_and_expect_ra(self.pg0, p,
# Change the flag settings back to the defaults
# L and A flag are set in the advert
#
- self.pg0.ip6_ra_prefix(self.pg0.local_ip6n,
- self.pg0.local_ip6_prefix_len)
+ self.pg0.ip6_ra_prefix('%s/%s' % (self.pg0.local_ip6,
+ self.pg0.local_ip6_prefix_len))
- opt = ICMPv6NDOptPrefixInfo(prefixlen=self.pg0.local_ip6_prefix_len,
- prefix=self.pg0.local_ip6,
- L=1,
- A=1)
+ opt = ICMPv6NDOptPrefixInfo(
+ prefixlen=self.pg0.local_ip6_prefix_len,
+ prefix=self.pg0.local_ip6,
+ L=1,
+ A=1)
self.pg0.ip6_ra_config(send_unicast=1)
self.send_and_expect_ra(self.pg0, p,
# Change the prefix info to not off-link, no-autoconfig
# L and A flag are clear in the advert
#
- self.pg0.ip6_ra_prefix(self.pg0.local_ip6n,
- self.pg0.local_ip6_prefix_len,
+ self.pg0.ip6_ra_prefix('%s/%s' % (self.pg0.local_ip6,
+ self.pg0.local_ip6_prefix_len),
off_link=1,
no_autoconfig=1)
- opt = ICMPv6NDOptPrefixInfo(prefixlen=self.pg0.local_ip6_prefix_len,
- prefix=self.pg0.local_ip6,
- L=0,
- A=0)
+ opt = ICMPv6NDOptPrefixInfo(
+ prefixlen=self.pg0.local_ip6_prefix_len,
+ prefix=self.pg0.local_ip6,
+ L=0,
+ A=0)
self.pg0.ip6_ra_config(send_unicast=1)
self.send_and_expect_ra(self.pg0, p,
opt=opt)
#
- # Use the reset to defults option to revert to defaults
+ # Use the reset to defaults option to revert to defaults
# L and A flag are clear in the advert
#
- self.pg0.ip6_ra_prefix(self.pg0.local_ip6n,
- self.pg0.local_ip6_prefix_len,
+ self.pg0.ip6_ra_prefix('%s/%s' % (self.pg0.local_ip6,
+ self.pg0.local_ip6_prefix_len),
use_default=1)
- opt = ICMPv6NDOptPrefixInfo(prefixlen=self.pg0.local_ip6_prefix_len,
- prefix=self.pg0.local_ip6,
- L=1,
- A=1)
+ opt = ICMPv6NDOptPrefixInfo(
+ prefixlen=self.pg0.local_ip6_prefix_len,
+ prefix=self.pg0.local_ip6,
+ L=1,
+ A=1)
self.pg0.ip6_ra_config(send_unicast=1)
self.send_and_expect_ra(self.pg0, p,
#
# Advertise Another prefix. With no L-flag/A-flag
#
- self.pg0.ip6_ra_prefix(self.pg1.local_ip6n,
- self.pg1.local_ip6_prefix_len,
+ self.pg0.ip6_ra_prefix('%s/%s' % (self.pg1.local_ip6,
+ self.pg1.local_ip6_prefix_len),
off_link=1,
no_autoconfig=1)
- opt = [ICMPv6NDOptPrefixInfo(prefixlen=self.pg0.local_ip6_prefix_len,
- prefix=self.pg0.local_ip6,
- L=1,
- A=1),
- ICMPv6NDOptPrefixInfo(prefixlen=self.pg1.local_ip6_prefix_len,
- prefix=self.pg1.local_ip6,
- L=0,
- A=0)]
+ opt = [ICMPv6NDOptPrefixInfo(
+ prefixlen=self.pg0.local_ip6_prefix_len,
+ prefix=self.pg0.local_ip6,
+ L=1,
+ A=1),
+ ICMPv6NDOptPrefixInfo(
+ prefixlen=self.pg1.local_ip6_prefix_len,
+ prefix=self.pg1.local_ip6,
+ L=0,
+ A=0)]
self.pg0.ip6_ra_config(send_unicast=1)
ll = mk_ll_addr(self.pg0.remote_mac)
opt=opt)
#
- # Remove the first refix-info - expect the second is still in the
+ # Remove the first prefix-info - expect the second is still in the
# advert
#
- self.pg0.ip6_ra_prefix(self.pg0.local_ip6n,
- self.pg0.local_ip6_prefix_len,
+ self.pg0.ip6_ra_prefix('%s/%s' % (self.pg0.local_ip6,
+ self.pg0.local_ip6_prefix_len),
is_no=1)
- opt = ICMPv6NDOptPrefixInfo(prefixlen=self.pg1.local_ip6_prefix_len,
- prefix=self.pg1.local_ip6,
- L=0,
- A=0)
+ opt = ICMPv6NDOptPrefixInfo(
+ prefixlen=self.pg1.local_ip6_prefix_len,
+ prefix=self.pg1.local_ip6,
+ L=0,
+ A=0)
self.pg0.ip6_ra_config(send_unicast=1)
self.send_and_expect_ra(self.pg0, p,
opt=opt)
#
- # Remove the second prefix-info - expect no prefix-info i nthe adverts
+ # Remove the second prefix-info - expect no prefix-info in the adverts
#
- self.pg0.ip6_ra_prefix(self.pg1.local_ip6n,
- self.pg1.local_ip6_prefix_len,
+ self.pg0.ip6_ra_prefix('%s/%s' % (self.pg1.local_ip6,
+ self.pg1.local_ip6_prefix_len),
is_no=1)
+ #
+ # change the link's link local, so we know that works too.
+ #
+ self.vapi.sw_interface_ip6_set_link_local_address(
+ sw_if_index=self.pg0.sw_if_index,
+ ip="fe80::88")
+
self.pg0.ip6_ra_config(send_unicast=1)
self.send_and_expect_ra(self.pg0, p,
"RA with Prefix reverted to defaults",
- dst_ip=ll)
+ dst_ip=ll,
+ src_ip="fe80::88")
#
# Reset the periodic advertisements back to default values
#
self.pg0.ip6_ra_config(no=1, suppress=1, send_unicast=0)
+ def test_mld(self):
+ """ MLD Report """
+ #
+ # test one MLD is sent after applying an IPv6 Address on an interface
+ #
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
-class IPv6NDProxyTest(TestIPv6ND):
- """ IPv6 ND ProxyTest Case """
+ subitf = VppDot1QSubint(self, self.pg1, 99)
- def setUp(self):
- super(IPv6NDProxyTest, self).setUp()
+ subitf.admin_up()
+ subitf.config_ip6()
- # create 3 pg interfaces
- self.create_pg_interfaces(range(3))
+ rxs = self.pg1._get_capture(timeout=4, filter_out_fn=None)
- # pg0 is the master interface, with the configured subnet
- self.pg0.admin_up()
- self.pg0.config_ip6()
- self.pg0.resolve_ndp()
+ #
+ # hunt for the MLD on vlan 99
+ #
+ for rx in rxs:
+ # make sure ipv6 packets with hop by hop options have
+ # correct checksums
+ self.assert_packet_checksums_valid(rx)
+ if rx.haslayer(IPv6ExtHdrHopByHop) and \
+ rx.haslayer(Dot1Q) and \
+ rx[Dot1Q].vlan == 99:
+ mld = rx[ICMPv6MLReport2]
- self.pg1.ip6_enable()
- self.pg2.ip6_enable()
+ self.assertEqual(mld.records_number, 4)
- def tearDown(self):
- super(IPv6NDProxyTest, self).tearDown()
- def test_nd_proxy(self):
- """ IPv6 Proxy ND """
+class TestIPv6IfAddrRoute(VppTestCase):
+ """ IPv6 Interface Addr Route Test Case """
- #
- # Generate some hosts in the subnet that we are proxying
- #
- self.pg0.generate_remote_hosts(8)
+ @classmethod
+ def setUpClass(cls):
+ super(TestIPv6IfAddrRoute, cls).setUpClass()
- nsma = in6_getnsma(inet_pton(AF_INET6, self.pg0.local_ip6))
- d = inet_ntop(AF_INET6, nsma)
+ @classmethod
+ def tearDownClass(cls):
+ super(TestIPv6IfAddrRoute, cls).tearDownClass()
- #
- # Send an NS for one of those remote hosts on one of the proxy links
- # expect no response since it's from an address that is not
- # on the link that has the prefix configured
- #
- ns_pg1 = (Ether(dst=in6_getnsmac(nsma), src=self.pg1.remote_mac) /
- IPv6(dst=d, src=self.pg0._remote_hosts[2].ip6) /
- ICMPv6ND_NS(tgt=self.pg0.local_ip6) /
- ICMPv6NDOptSrcLLAddr(lladdr=self.pg0._remote_hosts[2].mac))
+ def setUp(self):
+ super(TestIPv6IfAddrRoute, self).setUp()
- self.send_and_assert_no_replies(self.pg1, ns_pg1, "Off link NS")
+ # create 1 pg interface
+ self.create_pg_interfaces(range(1))
- #
- # Add proxy support for the host
- #
- self.vapi.ip6_nd_proxy(
- inet_pton(AF_INET6, self.pg0._remote_hosts[2].ip6),
- self.pg1.sw_if_index)
+ for i in self.pg_interfaces:
+ i.admin_up()
+ i.config_ip6()
+ i.resolve_ndp()
- #
- # try that NS again. this time we expect an NA back
- #
- self.pg1.add_stream(ns_pg1)
- self.pg_enable_capture(self.pg_interfaces)
- self.pg_start()
- rx = self.pg1.get_capture(1)
+ def tearDown(self):
+ super(TestIPv6IfAddrRoute, self).tearDown()
+ for i in self.pg_interfaces:
+ i.unconfig_ip6()
+ i.admin_down()
- self.validate_na(self.pg1, rx[0],
- dst_ip=self.pg0._remote_hosts[2].ip6,
- tgt_ip=self.pg0.local_ip6)
+ def test_ipv6_ifaddrs_same_prefix(self):
+ """ IPv6 Interface Addresses Same Prefix test
- #
- # ... and that we have an entry in the ND cache
- #
- self.assertTrue(find_nbr(self,
- self.pg1.sw_if_index,
- self.pg0._remote_hosts[2].ip6,
- inet=AF_INET6))
+ Test scenario:
- #
- # ... and we can route traffic to it
- #
- t = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
- IPv6(dst=self.pg0._remote_hosts[2].ip6,
- src=self.pg0.remote_ip6) /
- UDP(sport=10000, dport=20000) /
- Raw('\xa5' * 100))
+ - Verify no route in FIB for prefix 2001:10::/64
+ - Configure IPv4 address 2001:10::10/64 on an interface
+ - Verify route in FIB for prefix 2001:10::/64
+ - Configure IPv4 address 2001:10::20/64 on an interface
+ - Delete 2001:10::10/64 from interface
+ - Verify route in FIB for prefix 2001:10::/64
+ - Delete 2001:10::20/64 from interface
+ - Verify no route in FIB for prefix 2001:10::/64
+ """
- self.pg0.add_stream(t)
- self.pg_enable_capture(self.pg_interfaces)
- self.pg_start()
- rx = self.pg1.get_capture(1)
- rx = rx[0]
+ addr1 = "2001:10::10"
+ addr2 = "2001:10::20"
- self.assertEqual(rx[Ether].dst, self.pg0._remote_hosts[2].mac)
- self.assertEqual(rx[Ether].src, self.pg1.local_mac)
+ if_addr1 = VppIpInterfaceAddress(self, self.pg0, addr1, 64)
+ if_addr2 = VppIpInterfaceAddress(self, self.pg0, addr2, 64)
+ self.assertFalse(if_addr1.query_vpp_config())
+ self.assertFalse(find_route(self, addr1, 128))
+ self.assertFalse(find_route(self, addr2, 128))
- self.assertEqual(rx[IPv6].src, t[IPv6].src)
- self.assertEqual(rx[IPv6].dst, t[IPv6].dst)
+ # configure first address, verify route present
+ if_addr1.add_vpp_config()
+ self.assertTrue(if_addr1.query_vpp_config())
+ self.assertTrue(find_route(self, addr1, 128))
+ self.assertFalse(find_route(self, addr2, 128))
- #
- # Test we proxy for the host on the main interface
- #
- ns_pg0 = (Ether(dst=in6_getnsmac(nsma), src=self.pg0.remote_mac) /
- IPv6(dst=d, src=self.pg0.remote_ip6) /
- ICMPv6ND_NS(tgt=self.pg0._remote_hosts[2].ip6) /
- ICMPv6NDOptSrcLLAddr(lladdr=self.pg0.remote_mac))
+ # 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())
+ self.assertTrue(if_addr2.query_vpp_config())
+ self.assertFalse(find_route(self, addr1, 128))
+ self.assertTrue(find_route(self, addr2, 128))
- self.pg0.add_stream(ns_pg0)
- self.pg_enable_capture(self.pg_interfaces)
- self.pg_start()
- rx = self.pg0.get_capture(1)
+ # delete second address, verify route removed
+ if_addr2.remove_vpp_config()
+ self.assertFalse(if_addr1.query_vpp_config())
+ self.assertFalse(find_route(self, addr1, 128))
+ self.assertFalse(find_route(self, addr2, 128))
- self.validate_na(self.pg0, rx[0],
- tgt_ip=self.pg0._remote_hosts[2].ip6,
- dst_ip=self.pg0.remote_ip6)
- #
- # Setup and resolve proxy for another host on another interface
- #
- ns_pg2 = (Ether(dst=in6_getnsmac(nsma), src=self.pg2.remote_mac) /
- IPv6(dst=d, src=self.pg0._remote_hosts[3].ip6) /
- ICMPv6ND_NS(tgt=self.pg0.local_ip6) /
- ICMPv6NDOptSrcLLAddr(lladdr=self.pg0._remote_hosts[2].mac))
+class TestICMPv6Echo(VppTestCase):
+ """ ICMPv6 Echo Test Case """
- self.vapi.ip6_nd_proxy(
- inet_pton(AF_INET6, self.pg0._remote_hosts[3].ip6),
- self.pg2.sw_if_index)
+ @classmethod
+ def setUpClass(cls):
+ super(TestICMPv6Echo, cls).setUpClass()
- self.pg2.add_stream(ns_pg2)
- self.pg_enable_capture(self.pg_interfaces)
- self.pg_start()
- rx = self.pg2.get_capture(1)
+ @classmethod
+ def tearDownClass(cls):
+ super(TestICMPv6Echo, cls).tearDownClass()
- self.validate_na(self.pg2, rx[0],
- dst_ip=self.pg0._remote_hosts[3].ip6,
- tgt_ip=self.pg0.local_ip6)
+ def setUp(self):
+ super(TestICMPv6Echo, self).setUp()
- self.assertTrue(find_nbr(self,
- self.pg2.sw_if_index,
- self.pg0._remote_hosts[3].ip6,
- inet=AF_INET6))
+ # create 1 pg interface
+ self.create_pg_interfaces(range(1))
- #
- # hosts can communicate. pg2->pg1
- #
- t2 = (Ether(dst=self.pg2.local_mac,
- src=self.pg0.remote_hosts[3].mac) /
- IPv6(dst=self.pg0._remote_hosts[2].ip6,
- src=self.pg0._remote_hosts[3].ip6) /
- UDP(sport=10000, dport=20000) /
- Raw('\xa5' * 100))
+ for i in self.pg_interfaces:
+ i.admin_up()
+ i.config_ip6()
+ i.resolve_ndp()
- self.pg2.add_stream(t2)
+ def tearDown(self):
+ super(TestICMPv6Echo, self).tearDown()
+ for i in self.pg_interfaces:
+ i.unconfig_ip6()
+ i.admin_down()
+
+ def test_icmpv6_echo(self):
+ """ VPP replies to ICMPv6 Echo Request
+
+ Test scenario:
+
+ - Receive ICMPv6 Echo Request message on pg0 interface.
+ - Check outgoing ICMPv6 Echo Reply message on pg0 interface.
+ """
+
+ icmpv6_id = 0xb
+ icmpv6_seq = 5
+ icmpv6_data = b'\x0a' * 18
+ p_echo_request = (Ether(src=self.pg0.remote_mac,
+ dst=self.pg0.local_mac) /
+ IPv6(src=self.pg0.remote_ip6,
+ dst=self.pg0.local_ip6) /
+ ICMPv6EchoRequest(
+ id=icmpv6_id,
+ seq=icmpv6_seq,
+ data=icmpv6_data))
+
+ self.pg0.add_stream(p_echo_request)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
- rx = self.pg1.get_capture(1)
+
+ rx = self.pg0.get_capture(1)
rx = rx[0]
+ ether = rx[Ether]
+ ipv6 = rx[IPv6]
+ icmpv6 = rx[ICMPv6EchoReply]
- self.assertEqual(rx[Ether].dst, self.pg0._remote_hosts[2].mac)
- self.assertEqual(rx[Ether].src, self.pg1.local_mac)
+ self.assertEqual(ether.src, self.pg0.local_mac)
+ self.assertEqual(ether.dst, self.pg0.remote_mac)
- self.assertEqual(rx[IPv6].src, t2[IPv6].src)
- self.assertEqual(rx[IPv6].dst, t2[IPv6].dst)
+ self.assertEqual(ipv6.src, self.pg0.local_ip6)
+ self.assertEqual(ipv6.dst, self.pg0.remote_ip6)
- #
- # remove the proxy configs
- #
- self.vapi.ip6_nd_proxy(
- inet_pton(AF_INET6, self.pg0._remote_hosts[2].ip6),
- self.pg1.sw_if_index,
- is_del=1)
- self.vapi.ip6_nd_proxy(
- inet_pton(AF_INET6, self.pg0._remote_hosts[3].ip6),
- self.pg2.sw_if_index,
- is_del=1)
+ self.assertEqual(
+ icmp6types[icmpv6.type], "Echo Reply")
+ self.assertEqual(icmpv6.id, icmpv6_id)
+ self.assertEqual(icmpv6.seq, icmpv6_seq)
+ self.assertEqual(icmpv6.data, icmpv6_data)
- self.assertFalse(find_nbr(self,
- self.pg2.sw_if_index,
- self.pg0._remote_hosts[3].ip6,
- inet=AF_INET6))
- self.assertFalse(find_nbr(self,
- self.pg1.sw_if_index,
- self.pg0._remote_hosts[2].ip6,
- inet=AF_INET6))
- #
- # no longer proxy-ing...
- #
- self.send_and_assert_no_replies(self.pg0, ns_pg0, "Proxy unconfigured")
- self.send_and_assert_no_replies(self.pg1, ns_pg1, "Proxy unconfigured")
- self.send_and_assert_no_replies(self.pg2, ns_pg2, "Proxy unconfigured")
+class TestIPv6RD(TestIPv6ND):
+ """ IPv6 Router Discovery Test Case """
- #
- # no longer forwarding. traffic generates NS out of the glean/main
- # interface
- #
- self.pg2.add_stream(t2)
- self.pg_enable_capture(self.pg_interfaces)
- self.pg_start()
+ @classmethod
+ def setUpClass(cls):
+ super(TestIPv6RD, cls).setUpClass()
- rx = self.pg0.get_capture(1)
+ @classmethod
+ def tearDownClass(cls):
+ super(TestIPv6RD, cls).tearDownClass()
- self.assertTrue(rx[0].haslayer(ICMPv6ND_NS))
+ def setUp(self):
+ super(TestIPv6RD, self).setUp()
+
+ # create 2 pg interfaces
+ self.create_pg_interfaces(range(2))
+
+ self.interfaces = list(self.pg_interfaces)
+
+ # setup all interfaces
+ for i in self.interfaces:
+ i.admin_up()
+ i.config_ip6()
+
+ def tearDown(self):
+ for i in self.interfaces:
+ i.unconfig_ip6()
+ i.admin_down()
+ super(TestIPv6RD, self).tearDown()
+
+ def test_rd_send_router_solicitation(self):
+ """ Verify router solicitation packets """
+
+ count = 2
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+ self.vapi.ip6nd_send_router_solicitation(self.pg1.sw_if_index,
+ mrc=count)
+ rx_list = self.pg1.get_capture(count, timeout=3)
+ self.assertEqual(len(rx_list), count)
+ for packet in rx_list:
+ self.assertEqual(packet.haslayer(IPv6), 1)
+ self.assertEqual(packet[IPv6].haslayer(
+ ICMPv6ND_RS), 1)
+ dst = ip6_normalize(packet[IPv6].dst)
+ dst2 = ip6_normalize("ff02::2")
+ self.assert_equal(dst, dst2)
+ src = ip6_normalize(packet[IPv6].src)
+ src2 = ip6_normalize(self.pg1.local_ip6_ll)
+ self.assert_equal(src, src2)
+ self.assertTrue(
+ bool(packet[ICMPv6ND_RS].haslayer(
+ ICMPv6NDOptSrcLLAddr)))
+ self.assert_equal(
+ packet[ICMPv6NDOptSrcLLAddr].lladdr,
+ self.pg1.local_mac)
+
+ def verify_prefix_info(self, reported_prefix, prefix_option):
+ prefix = IPv6Network(
+ text_type(prefix_option.getfieldval("prefix") +
+ "/" +
+ text_type(prefix_option.getfieldval("prefixlen"))),
+ strict=False)
+ self.assert_equal(reported_prefix.prefix.network_address,
+ prefix.network_address)
+ L = prefix_option.getfieldval("L")
+ A = prefix_option.getfieldval("A")
+ option_flags = (L << 7) | (A << 6)
+ self.assert_equal(reported_prefix.flags, option_flags)
+ self.assert_equal(reported_prefix.valid_time,
+ prefix_option.getfieldval("validlifetime"))
+ self.assert_equal(reported_prefix.preferred_time,
+ prefix_option.getfieldval("preferredlifetime"))
+
+ def test_rd_receive_router_advertisement(self):
+ """ Verify events triggered by received RA packets """
+
+ self.vapi.want_ip6_ra_events(enable=1)
+
+ prefix_info_1 = ICMPv6NDOptPrefixInfo(
+ prefix="1::2",
+ prefixlen=50,
+ validlifetime=200,
+ preferredlifetime=500,
+ L=1,
+ A=1,
+ )
+
+ prefix_info_2 = ICMPv6NDOptPrefixInfo(
+ prefix="7::4",
+ prefixlen=20,
+ validlifetime=70,
+ preferredlifetime=1000,
+ L=1,
+ A=0,
+ )
+
+ p = (Ether(dst=self.pg1.local_mac, src=self.pg1.remote_mac) /
+ IPv6(dst=self.pg1.local_ip6_ll,
+ src=mk_ll_addr(self.pg1.remote_mac)) /
+ ICMPv6ND_RA() /
+ prefix_info_1 /
+ prefix_info_2)
+ self.pg1.add_stream([p])
+ self.pg_start()
+
+ ev = self.vapi.wait_for_event(10, "ip6_ra_event")
+
+ self.assert_equal(ev.current_hop_limit, 0)
+ self.assert_equal(ev.flags, 8)
+ self.assert_equal(ev.router_lifetime_in_sec, 1800)
+ self.assert_equal(ev.neighbor_reachable_time_in_msec, 0)
+ self.assert_equal(
+ ev.time_in_msec_between_retransmitted_neighbor_solicitations, 0)
+
+ self.assert_equal(ev.n_prefixes, 2)
+
+ self.verify_prefix_info(ev.prefixes[0], prefix_info_1)
+ self.verify_prefix_info(ev.prefixes[1], prefix_info_2)
+
+
+class TestIPv6RDControlPlane(TestIPv6ND):
+ """ IPv6 Router Discovery Control Plane Test Case """
+
+ @classmethod
+ def setUpClass(cls):
+ super(TestIPv6RDControlPlane, cls).setUpClass()
+
+ @classmethod
+ def tearDownClass(cls):
+ super(TestIPv6RDControlPlane, cls).tearDownClass()
+
+ def setUp(self):
+ super(TestIPv6RDControlPlane, self).setUp()
+
+ # create 1 pg interface
+ self.create_pg_interfaces(range(1))
+
+ self.interfaces = list(self.pg_interfaces)
+
+ # setup all interfaces
+ for i in self.interfaces:
+ i.admin_up()
+ i.config_ip6()
+
+ def tearDown(self):
+ super(TestIPv6RDControlPlane, self).tearDown()
+
+ @staticmethod
+ def create_ra_packet(pg, routerlifetime=None):
+ src_ip = pg.remote_ip6_ll
+ dst_ip = pg.local_ip6
+ if routerlifetime is not None:
+ ra = ICMPv6ND_RA(routerlifetime=routerlifetime)
+ else:
+ ra = ICMPv6ND_RA()
+ p = (Ether(dst=pg.local_mac, src=pg.remote_mac) /
+ IPv6(dst=dst_ip, src=src_ip) / ra)
+ return p
+
+ @staticmethod
+ def get_default_routes(fib):
+ list = []
+ for entry in fib:
+ if entry.route.prefix.prefixlen == 0:
+ for path in entry.route.paths:
+ if path.sw_if_index != 0xFFFFFFFF:
+ defaut_route = {}
+ defaut_route['sw_if_index'] = path.sw_if_index
+ defaut_route['next_hop'] = path.nh.address.ip6
+ list.append(defaut_route)
+ return list
+
+ @staticmethod
+ def get_interface_addresses(fib, pg):
+ list = []
+ for entry in fib:
+ if entry.route.prefix.prefixlen == 128:
+ path = entry.route.paths[0]
+ if path.sw_if_index == pg.sw_if_index:
+ list.append(str(entry.route.prefix.network_address))
+ return list
+
+ def wait_for_no_default_route(self, n_tries=50, s_time=1):
+ while (n_tries):
+ fib = self.vapi.ip_route_dump(0, True)
+ default_routes = self.get_default_routes(fib)
+ if 0 == len(default_routes):
+ return True
+ n_tries = n_tries - 1
+ self.sleep(s_time)
+
+ return False
+
+ def test_all(self):
+ """ Test handling of SLAAC addresses and default routes """
+
+ fib = self.vapi.ip_route_dump(0, True)
+ default_routes = self.get_default_routes(fib)
+ initial_addresses = set(self.get_interface_addresses(fib, self.pg0))
+ self.assertEqual(default_routes, [])
+ router_address = IPv6Address(text_type(self.pg0.remote_ip6_ll))
+
+ self.vapi.ip6_nd_address_autoconfig(self.pg0.sw_if_index, 1, 1)
+
+ self.sleep(0.1)
+
+ # send RA
+ packet = (self.create_ra_packet(
+ self.pg0) / ICMPv6NDOptPrefixInfo(
+ prefix="1::",
+ prefixlen=64,
+ validlifetime=2,
+ preferredlifetime=2,
+ L=1,
+ A=1,
+ ) / ICMPv6NDOptPrefixInfo(
+ prefix="7::",
+ prefixlen=20,
+ validlifetime=1500,
+ preferredlifetime=1000,
+ L=1,
+ A=0,
+ ))
+ self.pg0.add_stream([packet])
+ self.pg_start()
+
+ self.sleep_on_vpp_time(0.1)
+
+ fib = self.vapi.ip_route_dump(0, True)
+
+ # check FIB for new address
+ addresses = set(self.get_interface_addresses(fib, self.pg0))
+ new_addresses = addresses.difference(initial_addresses)
+ self.assertEqual(len(new_addresses), 1)
+ prefix = IPv6Network(text_type("%s/%d" % (list(new_addresses)[0], 20)),
+ strict=False)
+ self.assertEqual(prefix, IPv6Network(text_type('1::/20')))
+
+ # check FIB for new default route
+ default_routes = self.get_default_routes(fib)
+ self.assertEqual(len(default_routes), 1)
+ dr = default_routes[0]
+ self.assertEqual(dr['sw_if_index'], self.pg0.sw_if_index)
+ self.assertEqual(dr['next_hop'], router_address)
+
+ # send RA to delete default route
+ packet = self.create_ra_packet(self.pg0, routerlifetime=0)
+ self.pg0.add_stream([packet])
+ self.pg_start()
+
+ self.sleep_on_vpp_time(0.1)
+
+ # check that default route is deleted
+ fib = self.vapi.ip_route_dump(0, True)
+ default_routes = self.get_default_routes(fib)
+ self.assertEqual(len(default_routes), 0)
+
+ self.sleep_on_vpp_time(0.1)
+
+ # send RA
+ packet = self.create_ra_packet(self.pg0)
+ self.pg0.add_stream([packet])
+ self.pg_start()
+
+ self.sleep_on_vpp_time(0.1)
+
+ # check FIB for new default route
+ fib = self.vapi.ip_route_dump(0, True)
+ default_routes = self.get_default_routes(fib)
+ self.assertEqual(len(default_routes), 1)
+ dr = default_routes[0]
+ self.assertEqual(dr['sw_if_index'], self.pg0.sw_if_index)
+ self.assertEqual(dr['next_hop'], router_address)
+
+ # send RA, updating router lifetime to 1s
+ packet = self.create_ra_packet(self.pg0, 1)
+ self.pg0.add_stream([packet])
+ self.pg_start()
+
+ self.sleep_on_vpp_time(0.1)
+
+ # check that default route still exists
+ fib = self.vapi.ip_route_dump(0, True)
+ default_routes = self.get_default_routes(fib)
+ self.assertEqual(len(default_routes), 1)
+ dr = default_routes[0]
+ self.assertEqual(dr['sw_if_index'], self.pg0.sw_if_index)
+ self.assertEqual(dr['next_hop'], router_address)
+
+ self.sleep_on_vpp_time(1)
+
+ # check that default route is deleted
+ self.assertTrue(self.wait_for_no_default_route())
+
+ # check FIB still contains the SLAAC address
+ addresses = set(self.get_interface_addresses(fib, self.pg0))
+ new_addresses = addresses.difference(initial_addresses)
+
+ self.assertEqual(len(new_addresses), 1)
+ prefix = IPv6Network(text_type("%s/%d" % (list(new_addresses)[0], 20)),
+ strict=False)
+ self.assertEqual(prefix, IPv6Network(text_type('1::/20')))
+
+ self.sleep_on_vpp_time(1)
+
+ # check that SLAAC address is deleted
+ fib = self.vapi.ip_route_dump(0, True)
+ addresses = set(self.get_interface_addresses(fib, self.pg0))
+ new_addresses = addresses.difference(initial_addresses)
+ self.assertEqual(len(new_addresses), 0)
+
+
+class IPv6NDProxyTest(TestIPv6ND):
+ """ IPv6 ND ProxyTest Case """
+
+ @classmethod
+ def setUpClass(cls):
+ super(IPv6NDProxyTest, cls).setUpClass()
+
+ @classmethod
+ def tearDownClass(cls):
+ super(IPv6NDProxyTest, cls).tearDownClass()
+
+ def setUp(self):
+ super(IPv6NDProxyTest, self).setUp()
+
+ # create 3 pg interfaces
+ self.create_pg_interfaces(range(3))
+
+ # pg0 is the master interface, with the configured subnet
+ self.pg0.admin_up()
+ self.pg0.config_ip6()
+ self.pg0.resolve_ndp()
+
+ self.pg1.ip6_enable()
+ self.pg2.ip6_enable()
+
+ def tearDown(self):
+ super(IPv6NDProxyTest, self).tearDown()
+
+ def test_nd_proxy(self):
+ """ IPv6 Proxy ND """
+
+ #
+ # Generate some hosts in the subnet that we are proxying
+ #
+ self.pg0.generate_remote_hosts(8)
+
+ nsma = in6_getnsma(inet_pton(AF_INET6, self.pg0.local_ip6))
+ d = inet_ntop(AF_INET6, nsma)
+
+ #
+ # Send an NS for one of those remote hosts on one of the proxy links
+ # expect no response since it's from an address that is not
+ # on the link that has the prefix configured
+ #
+ ns_pg1 = (Ether(dst=in6_getnsmac(nsma), src=self.pg1.remote_mac) /
+ IPv6(dst=d,
+ src=self.pg0._remote_hosts[2].ip6) /
+ ICMPv6ND_NS(tgt=self.pg0.local_ip6) /
+ ICMPv6NDOptSrcLLAddr(
+ lladdr=self.pg0._remote_hosts[2].mac))
+
+ self.send_and_assert_no_replies(self.pg1, ns_pg1, "Off link NS")
+
+ #
+ # Add proxy support for the host
+ #
+ self.vapi.ip6nd_proxy_add_del(
+ is_add=1, ip=inet_pton(AF_INET6, self.pg0._remote_hosts[2].ip6),
+ sw_if_index=self.pg1.sw_if_index)
+
+ #
+ # try that NS again. this time we expect an NA back
+ #
+ self.send_and_expect_na(self.pg1, ns_pg1,
+ "NS to proxy entry",
+ dst_ip=self.pg0._remote_hosts[2].ip6,
+ tgt_ip=self.pg0.local_ip6)
+
+ #
+ # ... and that we have an entry in the ND cache
+ #
+ self.assertTrue(find_nbr(self,
+ self.pg1.sw_if_index,
+ self.pg0._remote_hosts[2].ip6))
+
+ #
+ # ... and we can route traffic to it
+ #
+ t = (Ether(dst=self.pg0.local_mac, src=self.pg0.remote_mac) /
+ IPv6(dst=self.pg0._remote_hosts[2].ip6,
+ src=self.pg0.remote_ip6) /
+ inet6.UDP(sport=10000, dport=20000) /
+ Raw(b'\xa5' * 100))
+
+ self.pg0.add_stream(t)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+ rx = self.pg1.get_capture(1)
+ rx = rx[0]
+
+ self.assertEqual(rx[Ether].dst, self.pg0._remote_hosts[2].mac)
+ self.assertEqual(rx[Ether].src, self.pg1.local_mac)
+
+ self.assertEqual(rx[IPv6].src,
+ t[IPv6].src)
+ self.assertEqual(rx[IPv6].dst,
+ t[IPv6].dst)
+
+ #
+ # Test we proxy for the host on the main interface
+ #
+ ns_pg0 = (Ether(dst=in6_getnsmac(nsma), src=self.pg0.remote_mac) /
+ IPv6(dst=d, src=self.pg0.remote_ip6) /
+ ICMPv6ND_NS(
+ tgt=self.pg0._remote_hosts[2].ip6) /
+ ICMPv6NDOptSrcLLAddr(
+ lladdr=self.pg0.remote_mac))
+
+ self.send_and_expect_na(self.pg0, ns_pg0,
+ "NS to proxy entry on main",
+ tgt_ip=self.pg0._remote_hosts[2].ip6,
+ dst_ip=self.pg0.remote_ip6)
+
+ #
+ # Setup and resolve proxy for another host on another interface
+ #
+ ns_pg2 = (Ether(dst=in6_getnsmac(nsma), src=self.pg2.remote_mac) /
+ IPv6(dst=d,
+ src=self.pg0._remote_hosts[3].ip6) /
+ ICMPv6ND_NS(tgt=self.pg0.local_ip6) /
+ ICMPv6NDOptSrcLLAddr(
+ lladdr=self.pg0._remote_hosts[2].mac))
+
+ self.vapi.ip6nd_proxy_add_del(
+ is_add=1, ip=inet_pton(AF_INET6, self.pg0._remote_hosts[3].ip6),
+ sw_if_index=self.pg2.sw_if_index)
+
+ self.send_and_expect_na(self.pg2, ns_pg2,
+ "NS to proxy entry other interface",
+ dst_ip=self.pg0._remote_hosts[3].ip6,
+ tgt_ip=self.pg0.local_ip6)
+
+ self.assertTrue(find_nbr(self,
+ self.pg2.sw_if_index,
+ self.pg0._remote_hosts[3].ip6))
+
+ #
+ # hosts can communicate. pg2->pg1
+ #
+ t2 = (Ether(dst=self.pg2.local_mac,
+ src=self.pg0.remote_hosts[3].mac) /
+ IPv6(dst=self.pg0._remote_hosts[2].ip6,
+ src=self.pg0._remote_hosts[3].ip6) /
+ inet6.UDP(sport=10000, dport=20000) /
+ Raw(b'\xa5' * 100))
+
+ self.pg2.add_stream(t2)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+ rx = self.pg1.get_capture(1)
+ rx = rx[0]
+
+ self.assertEqual(rx[Ether].dst, self.pg0._remote_hosts[2].mac)
+ self.assertEqual(rx[Ether].src, self.pg1.local_mac)
+
+ self.assertEqual(rx[IPv6].src,
+ t2[IPv6].src)
+ self.assertEqual(rx[IPv6].dst,
+ t2[IPv6].dst)
+
+ #
+ # remove the proxy configs
+ #
+ self.vapi.ip6nd_proxy_add_del(
+ ip=inet_pton(AF_INET6, self.pg0._remote_hosts[2].ip6),
+ sw_if_index=self.pg1.sw_if_index, is_add=0)
+ self.vapi.ip6nd_proxy_add_del(
+ ip=inet_pton(AF_INET6, self.pg0._remote_hosts[3].ip6),
+ sw_if_index=self.pg2.sw_if_index, is_add=0)
+
+ self.assertFalse(find_nbr(self,
+ self.pg2.sw_if_index,
+ self.pg0._remote_hosts[3].ip6))
+ self.assertFalse(find_nbr(self,
+ self.pg1.sw_if_index,
+ self.pg0._remote_hosts[2].ip6))
+
+ #
+ # no longer proxy-ing...
+ #
+ self.send_and_assert_no_replies(self.pg0, ns_pg0, "Proxy unconfigured")
+ self.send_and_assert_no_replies(self.pg1, ns_pg1, "Proxy unconfigured")
+ self.send_and_assert_no_replies(self.pg2, ns_pg2, "Proxy unconfigured")
+
+ #
+ # no longer forwarding. traffic generates NS out of the glean/main
+ # interface
+ #
+ self.pg2.add_stream(t2)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+
+ rx = self.pg0.get_capture(1)
+
+ self.assertTrue(rx[0].haslayer(ICMPv6ND_NS))
+
+
+class TestIPNull(VppTestCase):
+ """ IPv6 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(1))
+
+ for i in self.pg_interfaces:
+ i.admin_up()
+ i.config_ip6()
+ i.resolve_ndp()
+
+ def tearDown(self):
+ super(TestIPNull, self).tearDown()
+ for i in self.pg_interfaces:
+ i.unconfig_ip6()
+ i.admin_down()
+
+ def test_ip_null(self):
+ """ IP NULL route """
+
+ p = (Ether(src=self.pg0.remote_mac,
+ dst=self.pg0.local_mac) /
+ IPv6(src=self.pg0.remote_ip6, dst="2001::1") /
+ inet6.UDP(sport=1234, dport=1234) /
+ Raw(b'\xa5' * 100))
+
+ #
+ # A route via IP NULL that will reply with ICMP unreachables
+ #
+ ip_unreach = VppIpRoute(
+ self, "2001::", 64,
+ [VppRoutePath("::", 0xffffffff,
+ type=FibPathType.FIB_PATH_TYPE_ICMP_UNREACH)])
+ ip_unreach.add_vpp_config()
+
+ self.pg0.add_stream(p)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+
+ rx = self.pg0.get_capture(1)
+ rx = rx[0]
+ icmp = rx[ICMPv6DestUnreach]
+
+ # 0 = "No route to destination"
+ self.assertEqual(icmp.code, 0)
+
+ # ICMP is rate limited. pause a bit
+ self.sleep(1)
+
+ #
+ # A route via IP NULL that will reply with ICMP prohibited
+ #
+ ip_prohibit = VppIpRoute(
+ self, "2001::1", 128,
+ [VppRoutePath("::", 0xffffffff,
+ type=FibPathType.FIB_PATH_TYPE_ICMP_PROHIBIT)])
+ ip_prohibit.add_vpp_config()
+
+ self.pg0.add_stream(p)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+
+ rx = self.pg0.get_capture(1)
+ rx = rx[0]
+ icmp = rx[ICMPv6DestUnreach]
+
+ # 1 = "Communication with destination administratively prohibited"
+ self.assertEqual(icmp.code, 1)
+
+
+class TestIPDisabled(VppTestCase):
+ """ IPv6 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 enabled
+ self.pg0.admin_up()
+ self.pg0.config_ip6()
+ self.pg0.resolve_ndp()
+
+ # 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_ff_01 = VppIpMRoute(
+ self,
+ "::",
+ "ffef::1", 128,
+ 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_ff_01.add_vpp_config()
+
+ pu = (Ether(src=self.pg1.remote_mac,
+ dst=self.pg1.local_mac) /
+ IPv6(src="2001::1", dst=self.pg0.remote_ip6) /
+ inet6.UDP(sport=1234, dport=1234) /
+ Raw(b'\xa5' * 100))
+ pm = (Ether(src=self.pg1.remote_mac,
+ dst=self.pg1.local_mac) /
+ IPv6(src="2001::1", dst="ffef::1") /
+ inet6.UDP(sport=1234, dport=1234) /
+ Raw(b'\xa5' * 100))
+
+ #
+ # PG1 does not forward IP traffic
+ #
+ self.send_and_assert_no_replies(self.pg1, pu, "IPv6 disabled")
+ self.send_and_assert_no_replies(self.pg1, pm, "IPv6 disabled")
+
+ #
+ # IP enable PG1
+ #
+ self.pg1.config_ip6()
+
+ #
+ # 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_ip6()
+
+ #
+ # PG1 does not forward IP traffic
+ #
+ self.send_and_assert_no_replies(self.pg1, pu, "IPv6 disabled")
+ self.send_and_assert_no_replies(self.pg1, pm, "IPv6 disabled")
+
+
+class TestIP6LoadBalance(VppTestCase):
+ """ IPv6 Load-Balancing """
+
+ @classmethod
+ def setUpClass(cls):
+ super(TestIP6LoadBalance, cls).setUpClass()
+
+ @classmethod
+ def tearDownClass(cls):
+ super(TestIP6LoadBalance, cls).tearDownClass()
+
+ def setUp(self):
+ super(TestIP6LoadBalance, 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_ip6()
+ i.resolve_ndp()
+ i.enable_mpls()
+
+ def tearDown(self):
+ for i in self.pg_interfaces:
+ i.unconfig_ip6()
+ i.admin_down()
+ i.disable_mpls()
+ super(TestIP6LoadBalance, self).tearDown()
+
+ def pg_send(self, input, pkts):
+ self.vapi.cli("clear trace")
+ input.add_stream(pkts)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+
+ def send_and_expect_load_balancing(self, input, pkts, outputs):
+ self.pg_send(input, pkts)
+ for oo in outputs:
+ rx = oo._get_capture(1)
+ self.assertNotEqual(0, len(rx))
+
+ def send_and_expect_one_itf(self, input, pkts, itf):
+ self.pg_send(input, pkts)
+ rx = itf.get_capture(len(pkts))
+
+ def test_ip6_load_balance(self):
+ """ IPv6 Load-Balancing """
+
+ #
+ # An array of packets that differ only in the destination port
+ # - IP only
+ # - MPLS EOS
+ # - MPLS non-EOS
+ # - MPLS non-EOS with an entropy label
+ #
+ port_ip_pkts = []
+ port_mpls_pkts = []
+ port_mpls_neos_pkts = []
+ port_ent_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 = (
+ IPv6(dst="3000::1", src="3000:1::1") /
+ inet6.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))
+ port_mpls_neos_pkts.append((Ether(src=self.pg0.remote_mac,
+ dst=self.pg0.local_mac) /
+ MPLS(label=67, ttl=2) /
+ MPLS(label=77, ttl=2) /
+ port_ip_hdr))
+ port_ent_pkts.append((Ether(src=self.pg0.remote_mac,
+ dst=self.pg0.local_mac) /
+ MPLS(label=67, ttl=2) /
+ MPLS(label=14, ttl=2) /
+ MPLS(label=999, ttl=2) /
+ port_ip_hdr))
+ src_ip_hdr = (
+ IPv6(dst="3000::1", src="3000:1::%d" % ii) /
+ inet6.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))
+
+ #
+ # A route for the IP packets
+ #
+ route_3000_1 = VppIpRoute(self, "3000::1", 128,
+ [VppRoutePath(self.pg1.remote_ip6,
+ self.pg1.sw_if_index),
+ VppRoutePath(self.pg2.remote_ip6,
+ self.pg2.sw_if_index)])
+ route_3000_1.add_vpp_config()
+
+ #
+ # a local-label for the EOS packets
+ #
+ binding = VppMplsIpBind(self, 66, "3000::1", 128, is_ip6=1)
+ binding.add_vpp_config()
+
+ #
+ # An MPLS route for the non-EOS packets
+ #
+ route_67 = VppMplsRoute(self, 67, 0,
+ [VppRoutePath(self.pg1.remote_ip6,
+ self.pg1.sw_if_index,
+ labels=[67]),
+ VppRoutePath(self.pg2.remote_ip6,
+ self.pg2.sw_if_index,
+ labels=[67])])
+ route_67.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])
+ self.send_and_expect_load_balancing(self.pg0, port_mpls_neos_pkts,
+ [self.pg1, self.pg2])
+
+ #
+ # The packets with Entropy label in should not load-balance,
+ # since the Entropy value is fixed.
+ #
+ self.send_and_expect_one_itf(self.pg0, port_ent_pkts, self.pg1)
+
+ #
+ # 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,
+ is_ipv6=1)
+
+ 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,
+ is_ipv6=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) /
+ IPv6(dst="4000::1",
+ src="4000:1::1") /
+ inet6.UDP(sport=1234,
+ dport=1234 + ii) /
+ Raw(b'\xa5' * 100)))
+ src_pkts.append((Ether(src=self.pg0.remote_mac,
+ dst=self.pg0.local_mac) /
+ IPv6(dst="4000::1",
+ src="4000:1::%d" % ii) /
+ inet6.UDP(sport=1234, dport=1234) /
+ Raw(b'\xa5' * 100)))
+
+ route_3000_2 = VppIpRoute(self, "3000::2", 128,
+ [VppRoutePath(self.pg3.remote_ip6,
+ self.pg3.sw_if_index),
+ VppRoutePath(self.pg4.remote_ip6,
+ self.pg4.sw_if_index)])
+ route_3000_2.add_vpp_config()
+
+ route_4000_1 = VppIpRoute(self, "4000::1", 128,
+ [VppRoutePath("3000::1",
+ 0xffffffff),
+ VppRoutePath("3000::2",
+ 0xffffffff)])
+ route_4000_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])
+
+ #
+ # 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) /
+ IPv6(dst="6000::1",
+ src="6000:1::1") /
+ inet6.UDP(sport=1234,
+ dport=1234 + ii) /
+ Raw(b'\xa5' * 100)))
+
+ route_5000_2 = VppIpRoute(self, "5000::2", 128,
+ [VppRoutePath(self.pg3.remote_ip6,
+ self.pg3.sw_if_index)])
+ route_5000_2.add_vpp_config()
+
+ route_6000_1 = VppIpRoute(self, "6000::1", 128,
+ [VppRoutePath("5000::2",
+ 0xffffffff)])
+ route_6000_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_one_itf(self.pg0, port_pkts, self.pg3)
+
+
+class TestIP6Punt(VppTestCase):
+ """ IPv6 Punt Police/Redirect """
+
+ @classmethod
+ def setUpClass(cls):
+ super(TestIP6Punt, cls).setUpClass()
+
+ @classmethod
+ def tearDownClass(cls):
+ super(TestIP6Punt, cls).tearDownClass()
+
+ def setUp(self):
+ super(TestIP6Punt, self).setUp()
+
+ self.create_pg_interfaces(range(4))
+
+ for i in self.pg_interfaces:
+ i.admin_up()
+ i.config_ip6()
+ i.resolve_ndp()
+
+ def tearDown(self):
+ super(TestIP6Punt, self).tearDown()
+ for i in self.pg_interfaces:
+ i.unconfig_ip6()
+ i.admin_down()
+
+ def test_ip_punt(self):
+ """ IP6 punt police and redirect """
+
+ p = (Ether(src=self.pg0.remote_mac,
+ dst=self.pg0.local_mac) /
+ IPv6(src=self.pg0.remote_ip6,
+ dst=self.pg0.local_ip6) /
+ inet6.TCP(sport=1234, dport=1234) /
+ Raw(b'\xa5' * 100))
+
+ pkts = p * 1025
+
+ #
+ # Configure a punt redirect via pg1.
+ #
+ nh_addr = self.pg1.remote_ip6
+ 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, "ip6-punt", 400, 0, 10, 0, rate_type=1)
+ policer.add_vpp_config()
+ self.vapi.ip_punt_police(policer.policer_index, is_ip6=1)
+
+ 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, is_ip6=1)
+ 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):
+ """ IP6 punt redirect dump"""
+
+ #
+ # Configure a punt redirects
+ #
+ nh_addr = self.pg3.remote_ip6
+ self.vapi.ip_punt_redirect(self.pg0.sw_if_index,
+ self.pg3.sw_if_index,
+ nh_addr)
+ self.vapi.ip_punt_redirect(self.pg1.sw_if_index,
+ self.pg3.sw_if_index,
+ nh_addr)
+ self.vapi.ip_punt_redirect(self.pg2.sw_if_index,
+ self.pg3.sw_if_index,
+ '0::0')
+
+ #
+ # Dump pg0 punt redirects
+ #
+ punts = self.vapi.ip_punt_redirect_dump(self.pg0.sw_if_index,
+ is_ipv6=1)
+ 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, is_ipv6=1)
+ 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_ip6)
+ self.assertEqual(str(punts[2].punt.nh), '::')
+
+
+class TestIPDeag(VppTestCase):
+ """ IPv6 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_ip6()
+ i.resolve_ndp()
+
+ def tearDown(self):
+ super(TestIPDeag, self).tearDown()
+ for i in self.pg_interfaces:
+ i.unconfig_ip6()
+ 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, is_ip6=1)
+ table_src = VppIpTable(self, 2, is_ip6=1)
+ 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", 128,
+ [VppRoutePath("::",
+ 0xffffffff,
+ nh_table_id=1)])
+ route_to_src = VppIpRoute(
+ self, "1::2", 128,
+ [VppRoutePath("::",
+ 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) /
+ IPv6(src="5::5", dst="1::1") /
+ inet6.TCP(sport=1234, dport=1234) /
+ Raw(b'\xa5' * 100))
+ p_src = (Ether(src=self.pg0.remote_mac,
+ dst=self.pg0.local_mac) /
+ IPv6(src="2::2", dst="1::2") /
+ inet6.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", 128,
+ [VppRoutePath(self.pg1.remote_ip6,
+ 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", 128,
+ [VppRoutePath(self.pg2.remote_ip6,
+ 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, "3::3", 128,
+ [VppRoutePath("::",
+ 0xffffffff)])
+ route_loop.add_vpp_config()
+
+ p_l = (Ether(src=self.pg0.remote_mac,
+ dst=self.pg0.local_mac) /
+ IPv6(src="3::4", dst="3::3") /
+ inet6.TCP(sport=1234, dport=1234) /
+ Raw(b'\xa5' * 100))
+
+ self.send_and_assert_no_replies(self.pg0, p_l * 257,
+ "IP lookup loop")
+
+
+class TestIP6Input(VppTestCase):
+ """ IPv6 Input Exception Test Cases """
+
+ @classmethod
+ def setUpClass(cls):
+ super(TestIP6Input, cls).setUpClass()
+
+ @classmethod
+ def tearDownClass(cls):
+ super(TestIP6Input, cls).tearDownClass()
+
+ def setUp(self):
+ super(TestIP6Input, self).setUp()
+
+ self.create_pg_interfaces(range(2))
+
+ for i in self.pg_interfaces:
+ i.admin_up()
+ i.config_ip6()
+ i.resolve_ndp()
+
+ def tearDown(self):
+ super(TestIP6Input, self).tearDown()
+ for i in self.pg_interfaces:
+ i.unconfig_ip6()
+ i.admin_down()
+
+ def test_ip_input_icmp_reply(self):
+ """ IP6 Input Exception - Return ICMP (3,0) """
+ #
+ # hop limit - ICMP replies
+ #
+ p_version = (Ether(src=self.pg0.remote_mac,
+ dst=self.pg0.local_mac) /
+ IPv6(src=self.pg0.remote_ip6,
+ dst=self.pg1.remote_ip6,
+ hlim=1) /
+ inet6.UDP(sport=1234, dport=1234) /
+ Raw(b'\xa5' * 100))
+
+ rx = self.send_and_expect(self.pg0, p_version * NUM_PKTS, self.pg0)
+ rx = rx[0]
+ icmp = rx[ICMPv6TimeExceeded]
+
+ # 0: "hop limit exceeded in transit",
+ self.assertEqual((icmp.type, icmp.code), (3, 0))
+
+ icmpv6_data = '\x0a' * 18
+ all_0s = "::"
+ all_1s = "FFFF:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF:FFFF"
+
+ @parameterized.expand([
+ # Name, src, dst, l4proto, msg, timeout
+ ("src='iface', dst='iface'", None, None,
+ inet6.UDP(sport=1234, dport=1234), "funky version", None),
+ ("src='All 0's', dst='iface'", all_0s, None,
+ ICMPv6EchoRequest(id=0xb, seq=5, data=icmpv6_data), None, 0.1),
+ ("src='iface', dst='All 0's'", None, all_0s,
+ ICMPv6EchoRequest(id=0xb, seq=5, data=icmpv6_data), None, 0.1),
+ ("src='All 1's', dst='iface'", all_1s, None,
+ ICMPv6EchoRequest(id=0xb, seq=5, data=icmpv6_data), None, 0.1),
+ ("src='iface', dst='All 1's'", None, all_1s,
+ ICMPv6EchoRequest(id=0xb, seq=5, data=icmpv6_data), None, 0.1),
+ ("src='All 1's', dst='All 1's'", all_1s, all_1s,
+ ICMPv6EchoRequest(id=0xb, seq=5, data=icmpv6_data), None, 0.1),
+
+ ])
+ def test_ip_input_no_replies(self, name, src, dst, l4, msg, timeout):
+
+ self._testMethodDoc = 'IPv6 Input Exception - %s' % name
+
+ p_version = (Ether(src=self.pg0.remote_mac,
+ dst=self.pg0.local_mac) /
+ IPv6(src=src or self.pg0.remote_ip6,
+ dst=dst or self.pg1.remote_ip6,
+ version=3) /
+ l4 /
+ Raw(b'\xa5' * 100))
+
+ self.send_and_assert_no_replies(self.pg0, p_version * NUM_PKTS,
+ remark=msg or "",
+ timeout=timeout)
+
+ def test_hop_by_hop(self):
+ """ Hop-by-hop header test """
+
+ p = (Ether(src=self.pg0.remote_mac,
+ dst=self.pg0.local_mac) /
+ IPv6(src=self.pg0.remote_ip6, dst=self.pg0.local_ip6) /
+ IPv6ExtHdrHopByHop() /
+ inet6.UDP(sport=1234, dport=1234) /
+ Raw(b'\xa5' * 100))
+
+ self.pg0.add_stream(p)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+
+
+class TestIPReplace(VppTestCase):
+ """ IPv6 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_ip6()
+ i.resolve_arp()
+ i.generate_remote_hosts(2)
+ self.tables.append(VppIpTable(self, table_id,
+ True).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 = [[], [], [], []]
+
+ # the sizes of 'empty' tables
+ for t in self.tables:
+ self.assertEqual(len(t.dump()), 2)
+ self.assertEqual(len(t.mdump()), 5)
+
+ # load up the tables with some routes
+ for ii, t in enumerate(self.tables):
+ for jj in range(1, N_ROUTES):
+ uni = VppIpRoute(
+ self, "2001::%d" % jj if jj != 0 else "2001::", 128,
+ [VppRoutePath(links[ii].remote_hosts[0].ip6,
+ links[ii].sw_if_index),
+ VppRoutePath(links[ii].remote_hosts[1].ip6,
+ links[ii].sw_if_index)],
+ table_id=t.table_id).add_vpp_config()
+ multi = VppIpMRoute(
+ self, "::",
+ "ff:2001::%d" % jj, 128,
+ MRouteEntryFlags.MFIB_ENTRY_FLAG_NONE,
+ [VppMRoutePath(self.pg0.sw_if_index,
+ MRouteItfFlags.MFIB_ITF_FLAG_ACCEPT,
+ proto=FibPathProto.FIB_PATH_NH_PROTO_IP6),
+ VppMRoutePath(self.pg1.sw_if_index,
+ MRouteItfFlags.MFIB_ITF_FLAG_FORWARD,
+ proto=FibPathProto.FIB_PATH_NH_PROTO_IP6),
+ VppMRoutePath(self.pg2.sw_if_index,
+ MRouteItfFlags.MFIB_ITF_FLAG_FORWARD,
+ proto=FibPathProto.FIB_PATH_NH_PROTO_IP6),
+ VppMRoutePath(self.pg3.sw_if_index,
+ MRouteItfFlags.MFIB_ITF_FLAG_FORWARD,
+ proto=FibPathProto.FIB_PATH_NH_PROTO_IP6)],
+ 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 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 converged
+ 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()), 2)
+ self.assertEqual(len(t.mdump()), 5)
+
+
+class TestIP6Replace(VppTestCase):
+ """ IPv4 Interface Address Replace """
+
+ @classmethod
+ def setUpClass(cls):
+ super(TestIP6Replace, cls).setUpClass()
+
+ @classmethod
+ def tearDownClass(cls):
+ super(TestIP6Replace, cls).tearDownClass()
+
+ def setUp(self):
+ super(TestIP6Replace, self).setUp()
+
+ self.create_pg_interfaces(range(4))
+
+ for i in self.pg_interfaces:
+ i.admin_up()
+
+ def tearDown(self):
+ super(TestIP6Replace, 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, True))
+
+ 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]
+
+ # 2001:16:x::1/64
+ addr = "2001:16:%d::1" % intf.sw_if_index
+ a = VppIpInterfaceAddress(self, intf, addr, 64).add_vpp_config()
+ intf_pfxs[i].append(a)
+
+ # 2001:16:x::2/64 - a different address in the same subnet as above
+ addr = "2001:16:%d::2" % intf.sw_if_index
+ a = VppIpInterfaceAddress(self, intf, addr, 64).add_vpp_config()
+ intf_pfxs[i].append(a)
+
+ # 2001:15:x::2/64 - a different address and subnet
+ addr = "2001:15:%d::2" % intf.sw_if_index
+ a = VppIpInterfaceAddress(self, intf, addr, 64).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:
+ # 2001:18:x::1/64
+ addr = "2001:18:%d::1" % intf.sw_if_index
+ pfxs.append(VppIpInterfaceAddress(self, intf, addr,
+ 64).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:
+ # 2001:18:x::1/64
+ addr = "2001:18:%d::1" % intf.sw_if_index
+ VppIpInterfaceAddress(self, intf, addr, 64).add_vpp_config()
+
+ self.vapi.sw_interface_address_replace_begin()
+
+ pfxs = []
+ for intf in self.pg_interfaces:
+ # 2001:18:x::1/64
+ addr = "2001:18:%d::1" % (intf.sw_if_index + 1)
+ pfxs.append(VppIpInterfaceAddress(self, intf,
+ addr, 64).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__':
Code Review / vpp.git / blobdiff