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vpp/test/test_gbp.py
Mohsin Kazmi d61105656b gbp: Add support for ACL 
Change-Id: I7513c41307e62068ab5d9739cac393675c6066f8
Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
(cherry picked from commit 22b3b846822df2701bb6cb508fa4e023526e5717)
2018-07-19 07:51:39 +00:00

1201 lines
46 KiB
Python
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#!/usr/bin/env python
import unittest
from framework import VppTestCase, VppTestRunner
from vpp_object import VppObject
from vpp_neighbor import VppNeighbor
from vpp_ip_route import VppIpRoute, VppRoutePath, VppIpTable, DpoProto
from scapy.packet import Raw
from scapy.layers.l2 import Ether, ARP
from scapy.layers.inet import IP, UDP
from scapy.layers.inet6 import IPv6, ICMPv6ND_NS, ICMPv6NDOptSrcLLAddr, \
ICMPv6ND_NA
from scapy.utils6 import in6_getnsma, in6_getnsmac
from socket import AF_INET, AF_INET6
from scapy.utils import inet_pton, inet_ntop
from util import mactobinary
class VppGbpEndpoint(VppObject):
"""
GBP Endpoint
"""
@property
def bin_mac(self):
return mactobinary(self.itf.remote_mac)
@property
def mac(self):
return self.itf.remote_mac
def __init__(self, test, itf, epg, recirc, ip, fip, is_ip6=False):
self._test = test
self.itf = itf
self.epg = epg
self.recirc = recirc
self.ip = ip
self.floating_ip = fip
self.is_ip6 = is_ip6
if is_ip6:
self.proto = DpoProto.DPO_PROTO_IP6
self.af = AF_INET6
self.is_ip6 = True
self.ip_len = 128
else:
self.proto = DpoProto.DPO_PROTO_IP4
self.af = AF_INET
self.is_ip6 = False
self.ip_len = 32
self.ip_n = inet_pton(self.af, ip)
self.floating_ip_n = inet_pton(self.af, fip)
def add_vpp_config(self):
self._test.vapi.gbp_endpoint_add_del(
1,
self.itf.sw_if_index,
self.ip_n,
self.is_ip6,
self.epg.epg)
self._test.registry.register(self, self._test.logger)
def remove_vpp_config(self):
self._test.vapi.gbp_endpoint_add_del(
0,
self.itf.sw_if_index,
self.ip_n,
self.is_ip6,
self.epg.epg)
def __str__(self):
return self.object_id()
def object_id(self):
return "gbp-endpoint;[%d:%s:%d]" % (self.itf.sw_if_index,
self.ip,
self.epg.epg)
def query_vpp_config(self):
eps = self._test.vapi.gbp_endpoint_dump()
for ep in eps:
if self.is_ip6:
if ep.endpoint.address == self.ip_n \
and ep.endpoint.sw_if_index == self.itf.sw_if_index:
return True
else:
if ep.endpoint.address[:4] == self.ip_n \
and ep.endpoint.sw_if_index == self.itf.sw_if_index:
return True
return False
class VppGbpRecirc(VppObject):
"""
GBP Recirculation Interface
"""
def __init__(self, test, epg, recirc, is_ext=False):
self._test = test
self.recirc = recirc
self.epg = epg
self.is_ext = is_ext
def add_vpp_config(self):
self._test.vapi.gbp_recirc_add_del(
1,
self.recirc.sw_if_index,
self.epg.epg,
self.is_ext)
self._test.registry.register(self, self._test.logger)
def remove_vpp_config(self):
self._test.vapi.gbp_recirc_add_del(
0,
self.recirc.sw_if_index,
self.epg.epg,
self.is_ext)
def __str__(self):
return self.object_id()
def object_id(self):
return "gbp-recirc;[%d]" % (self.recirc.sw_if_index)
def query_vpp_config(self):
rs = self._test.vapi.gbp_recirc_dump()
for r in rs:
if r.recirc.sw_if_index == self.recirc.sw_if_index:
return True
return False
class VppGbpSubnet(VppObject):
"""
GBP Subnet
"""
def __init__(self, test, table_id, address, address_len,
is_internal=True, is_ip6=False,
sw_if_index=None, epg=None):
self._test = test
self.table_id = table_id
self.address = address
self.address_len = address_len
self.is_ip6 = is_ip6
if is_ip6:
self.address_n = inet_pton(AF_INET6, address)
else:
self.address_n = inet_pton(AF_INET, address)
self.is_internal = is_internal
self.sw_if_index = sw_if_index
self.epg = epg
def add_vpp_config(self):
self._test.vapi.gbp_subnet_add_del(
1,
self.table_id,
self.is_internal,
self.address_n,
self.address_len,
sw_if_index=self.sw_if_index if self.sw_if_index else 0xffffffff,
epg_id=self.epg if self.epg else 0xffffffff,
is_ip6=self.is_ip6)
self._test.registry.register(self, self._test.logger)
def remove_vpp_config(self):
self._test.vapi.gbp_subnet_add_del(
0,
self.table_id,
self.is_internal,
self.address_n,
self.address_len,
is_ip6=self.is_ip6)
def __str__(self):
return self.object_id()
def object_id(self):
return "gbp-subnet;[%d:%s/%d]" % (self.table_id,
self.address,
self.address_len)
def query_vpp_config(self):
ss = self._test.vapi.gbp_subnet_dump()
for s in ss:
if s.subnet.table_id == self.table_id and \
s.subnet.address_length == self.address_len and \
s.subnet.is_ip6 == self.is_ip6:
if self.is_ip6:
if s.subnet.address == self.address_n:
return True
else:
if s.subnet.address[:4] == self.address_n:
return True
return False
class VppGbpEndpointGroup(VppObject):
"""
GBP Endpoint Group
"""
def __init__(self, test, epg, rd, bd, uplink,
bvi, bvi_ip4, bvi_ip6=None):
self._test = test
self.uplink = uplink
self.bvi = bvi
self.bvi_ip4 = bvi_ip4
self.bvi_ip4_n = inet_pton(AF_INET, bvi_ip4)
self.bvi_ip6 = bvi_ip6
self.bvi_ip6_n = inet_pton(AF_INET6, bvi_ip6)
self.epg = epg
self.bd = bd
self.rd = rd
def add_vpp_config(self):
self._test.vapi.gbp_endpoint_group_add_del(
1,
self.epg,
self.bd,
self.rd,
self.rd,
self.uplink.sw_if_index)
self._test.registry.register(self, self._test.logger)
def remove_vpp_config(self):
self._test.vapi.gbp_endpoint_group_add_del(
0,
self.epg,
self.bd,
self.rd,
self.rd,
self.uplink.sw_if_index)
def __str__(self):
return self.object_id()
def object_id(self):
return "gbp-endpoint-group;[%d]" % (self.epg)
def query_vpp_config(self):
epgs = self._test.vapi.gbp_endpoint_group_dump()
for epg in epgs:
if epg.epg.epg_id == self.epg:
return True
return False
class VppGbpContract(VppObject):
"""
GBP Contract
"""
def __init__(self, test, src_epg, dst_epg, acl_index):
self._test = test
self.acl_index = acl_index
self.src_epg = src_epg
self.dst_epg = dst_epg
def add_vpp_config(self):
self._test.vapi.gbp_contract_add_del(
1,
self.src_epg,
self.dst_epg,
self.acl_index)
self._test.registry.register(self, self._test.logger)
def remove_vpp_config(self):
self._test.vapi.gbp_contract_add_del(
0,
self.src_epg,
self.dst_epg,
self.acl_index)
def __str__(self):
return self.object_id()
def object_id(self):
return "gbp-contract;[%d:%s:%d]" % (self.src_epg,
self.dst_epg,
self.acl_index)
def query_vpp_config(self):
cs = self._test.vapi.gbp_contract_dump()
for c in cs:
if c.contract.src_epg == self.src_epg \
and c.contract.dst_epg == self.dst_epg:
return True
return False
class VppGbpAcl(VppObject):
"""
GBP Acl
"""
def __init__(self, test):
self._test = test
self.acl_index = 4294967295
def create_rule(self, is_ipv6=0, permit_deny=0, proto=-1,
s_prefix=0, s_ip='\x00\x00\x00\x00', sport_from=0,
sport_to=65535, d_prefix=0, d_ip='\x00\x00\x00\x00',
dport_from=0, dport_to=65535):
if proto == -1 or proto == 0:
sport_to = 0
dport_to = sport_to
elif proto == 1 or proto == 58:
sport_to = 255
dport_to = sport_to
rule = ({'is_permit': permit_deny, 'is_ipv6': is_ipv6, 'proto': proto,
'srcport_or_icmptype_first': sport_from,
'srcport_or_icmptype_last': sport_to,
'src_ip_prefix_len': s_prefix,
'src_ip_addr': s_ip,
'dstport_or_icmpcode_first': dport_from,
'dstport_or_icmpcode_last': dport_to,
'dst_ip_prefix_len': d_prefix,
'dst_ip_addr': d_ip})
return rule
def add_vpp_config(self, rules):
reply = self._test.vapi.acl_add_replace(self.acl_index,
r=rules,
tag='GBPTest')
self.acl_index = reply.acl_index
return self.acl_index
def remove_vpp_config(self):
self._test.vapi.acl_del(self.acl_index)
def __str__(self):
return self.object_id()
def object_id(self):
return "gbp-acl;[%d]" % (self.acl_index)
def query_vpp_config(self):
cs = self._test.vapi.acl_dump()
for c in cs:
if c.acl_index == self.acl_index:
return True
return False
class TestGBP(VppTestCase):
""" GBP Test Case """
def setUp(self):
super(TestGBP, self).setUp()
self.create_pg_interfaces(range(9))
self.create_loopback_interfaces(9)
self.router_mac = "00:11:22:33:44:55"
for i in self.pg_interfaces:
i.admin_up()
for i in self.lo_interfaces:
i.admin_up()
self.vapi.sw_interface_set_mac_address(
i.sw_if_index,
mactobinary(self.router_mac))
def tearDown(self):
for i in self.pg_interfaces:
i.admin_down()
super(TestGBP, self).tearDown()
def send_and_expect_bridged(self, src, tx, dst):
rx = self.send_and_expect(src, tx, dst)
for r in rx:
self.assertEqual(r[Ether].src, tx[0][Ether].src)
self.assertEqual(r[Ether].dst, tx[0][Ether].dst)
self.assertEqual(r[IP].src, tx[0][IP].src)
self.assertEqual(r[IP].dst, tx[0][IP].dst)
return rx
def send_and_expect_bridged6(self, src, tx, dst):
rx = self.send_and_expect(src, tx, dst)
for r in rx:
self.assertEqual(r[Ether].src, tx[0][Ether].src)
self.assertEqual(r[Ether].dst, tx[0][Ether].dst)
self.assertEqual(r[IPv6].src, tx[0][IPv6].src)
self.assertEqual(r[IPv6].dst, tx[0][IPv6].dst)
return rx
def send_and_expect_routed(self, src, tx, dst, src_mac):
rx = self.send_and_expect(src, tx, dst)
for r in rx:
self.assertEqual(r[Ether].src, src_mac)
self.assertEqual(r[Ether].dst, dst.remote_mac)
self.assertEqual(r[IP].src, tx[0][IP].src)
self.assertEqual(r[IP].dst, tx[0][IP].dst)
return rx
def send_and_expect_natted(self, src, tx, dst, src_ip):
rx = self.send_and_expect(src, tx, dst)
for r in rx:
self.assertEqual(r[Ether].src, tx[0][Ether].src)
self.assertEqual(r[Ether].dst, tx[0][Ether].dst)
self.assertEqual(r[IP].src, src_ip)
self.assertEqual(r[IP].dst, tx[0][IP].dst)
return rx
def send_and_expect_natted6(self, src, tx, dst, src_ip):
rx = self.send_and_expect(src, tx, dst)
for r in rx:
self.assertEqual(r[Ether].src, tx[0][Ether].src)
self.assertEqual(r[Ether].dst, tx[0][Ether].dst)
self.assertEqual(r[IPv6].src, src_ip)
self.assertEqual(r[IPv6].dst, tx[0][IPv6].dst)
return rx
def send_and_expect_unnatted(self, src, tx, dst, dst_ip):
rx = self.send_and_expect(src, tx, dst)
for r in rx:
self.assertEqual(r[Ether].src, tx[0][Ether].src)
self.assertEqual(r[Ether].dst, tx[0][Ether].dst)
self.assertEqual(r[IP].dst, dst_ip)
self.assertEqual(r[IP].src, tx[0][IP].src)
return rx
def send_and_expect_unnatted6(self, src, tx, dst, dst_ip):
rx = self.send_and_expect(src, tx, dst)
for r in rx:
self.assertEqual(r[Ether].src, tx[0][Ether].src)
self.assertEqual(r[Ether].dst, tx[0][Ether].dst)
self.assertEqual(r[IPv6].dst, dst_ip)
self.assertEqual(r[IPv6].src, tx[0][IPv6].src)
return rx
def send_and_expect_double_natted(self, src, tx, dst, src_ip, dst_ip):
rx = self.send_and_expect(src, tx, dst)
for r in rx:
self.assertEqual(r[Ether].src, self.router_mac)
self.assertEqual(r[Ether].dst, dst.remote_mac)
self.assertEqual(r[IP].dst, dst_ip)
self.assertEqual(r[IP].src, src_ip)
return rx
def send_and_expect_double_natted6(self, src, tx, dst, src_ip, dst_ip):
rx = self.send_and_expect(src, tx, dst)
for r in rx:
self.assertEqual(r[Ether].src, self.router_mac)
self.assertEqual(r[Ether].dst, dst.remote_mac)
self.assertEqual(r[IPv6].dst, dst_ip)
self.assertEqual(r[IPv6].src, src_ip)
return rx
def test_gbp(self):
""" Group Based Policy """
nat_table = VppIpTable(self, 20)
nat_table.add_vpp_config()
nat_table = VppIpTable(self, 20, is_ip6=True)
nat_table.add_vpp_config()
#
# Bridge Domains
#
self.vapi.bridge_domain_add_del(1, flood=1, uu_flood=1, forward=1,
learn=0, arp_term=1, is_add=1)
self.vapi.bridge_domain_add_del(2, flood=1, uu_flood=1, forward=1,
learn=0, arp_term=1, is_add=1)
self.vapi.bridge_domain_add_del(20, flood=1, uu_flood=1, forward=1,
learn=0, arp_term=1, is_add=1)
#
# 3 EPGs, 2 of which share a BD.
#
epgs = []
recircs = []
epgs.append(VppGbpEndpointGroup(self, 220, 0, 1, self.pg4,
self.loop0,
"10.0.0.128",
"2001:10::128"))
recircs.append(VppGbpRecirc(self, epgs[0],
self.loop3))
epgs.append(VppGbpEndpointGroup(self, 221, 0, 1, self.pg5,
self.loop0,
"10.0.1.128",
"2001:10:1::128"))
recircs.append(VppGbpRecirc(self, epgs[1],
self.loop4))
epgs.append(VppGbpEndpointGroup(self, 222, 0, 2, self.pg6,
self.loop1,
"10.0.2.128",
"2001:10:2::128"))
recircs.append(VppGbpRecirc(self, epgs[2],
self.loop5))
#
# 2 NAT EPGs, one for floating-IP subnets, the other for internet
#
epgs.append(VppGbpEndpointGroup(self, 333, 20, 20, self.pg7,
self.loop2,
"11.0.0.128",
"3001::128"))
recircs.append(VppGbpRecirc(self, epgs[3],
self.loop6, is_ext=True))
epgs.append(VppGbpEndpointGroup(self, 444, 20, 20, self.pg8,
self.loop2,
"11.0.0.129",
"3001::129"))
recircs.append(VppGbpRecirc(self, epgs[4],
self.loop8, is_ext=True))
epg_nat = epgs[3]
recirc_nat = recircs[3]
#
# 4 end-points, 2 in the same subnet, 3 in the same BD
#
eps = []
eps.append(VppGbpEndpoint(self, self.pg0,
epgs[0], recircs[0],
"10.0.0.1",
"11.0.0.1"))
eps.append(VppGbpEndpoint(self, self.pg1,
epgs[0], recircs[0],
"10.0.0.2",
"11.0.0.2"))
eps.append(VppGbpEndpoint(self, self.pg2,
epgs[1], recircs[1],
"10.0.1.1",
"11.0.0.3"))
eps.append(VppGbpEndpoint(self, self.pg3,
epgs[2], recircs[2],
"10.0.2.1",
"11.0.0.4"))
eps.append(VppGbpEndpoint(self, self.pg0,
epgs[0], recircs[0],
"2001:10::1",
"3001::1",
is_ip6=True))
eps.append(VppGbpEndpoint(self, self.pg1,
epgs[0], recircs[0],
"2001:10::2",
"3001::2",
is_ip6=True))
eps.append(VppGbpEndpoint(self, self.pg2,
epgs[1], recircs[1],
"2001:10:1::1",
"3001::3",
is_ip6=True))
eps.append(VppGbpEndpoint(self, self.pg3,
epgs[2], recircs[2],
"2001:10:2::1",
"3001::4",
is_ip6=True))
#
# Config related to each of the EPGs
#
for epg in epgs:
# IP config on the BVI interfaces
if epg != epgs[1] and epg != epgs[4]:
epg.bvi.set_table_ip4(epg.rd)
epg.bvi.set_table_ip6(epg.rd)
# The BVIs are NAT inside interfaces
self.vapi.nat44_interface_add_del_feature(epg.bvi.sw_if_index,
is_inside=1,
is_add=1)
self.vapi.nat66_add_del_interface(epg.bvi.sw_if_index,
is_inside=1,
is_add=1)
self.vapi.sw_interface_add_del_address(epg.bvi.sw_if_index,
epg.bvi_ip4_n,
32)
self.vapi.sw_interface_add_del_address(epg.bvi.sw_if_index,
epg.bvi_ip6_n,
128,
is_ipv6=True)
# EPG uplink interfaces in the BD
epg.uplink.set_table_ip4(epg.rd)
epg.uplink.set_table_ip6(epg.rd)
self.vapi.sw_interface_set_l2_bridge(epg.uplink.sw_if_index,
epg.bd)
# add the BD ARP termination entry for BVI IP
self.vapi.bd_ip_mac_add_del(bd_id=epg.bd,
mac=mactobinary(self.router_mac),
ip=epg.bvi_ip4_n,
is_ipv6=0,
is_add=1)
self.vapi.bd_ip_mac_add_del(bd_id=epg.bd,
mac=mactobinary(self.router_mac),
ip=epg.bvi_ip6_n,
is_ipv6=1,
is_add=1)
# epg[1] shares the same BVI to epg[0]
if epg != epgs[1] and epg != epgs[4]:
# BVI in BD
self.vapi.sw_interface_set_l2_bridge(epg.bvi.sw_if_index,
epg.bd,
bvi=1)
# BVI L2 FIB entry
self.vapi.l2fib_add_del(self.router_mac,
epg.bd,
epg.bvi.sw_if_index,
is_add=1, bvi_mac=1)
# EPG in VPP
epg.add_vpp_config()
for recirc in recircs:
# EPG's ingress recirculation interface maps to its RD
recirc.recirc.set_table_ip4(recirc.epg.rd)
recirc.recirc.set_table_ip6(recirc.epg.rd)
# in the bridge to allow DVR. L2 emulation to punt to L3
self.vapi.sw_interface_set_l2_bridge(recirc.recirc.sw_if_index,
recirc.epg.bd)
self.vapi.sw_interface_set_l2_emulation(
recirc.recirc.sw_if_index)
self.vapi.nat44_interface_add_del_feature(
recirc.recirc.sw_if_index,
is_inside=0,
is_add=1)
self.vapi.nat66_add_del_interface(
recirc.recirc.sw_if_index,
is_inside=0,
is_add=1)
recirc.add_vpp_config()
ep_routes = []
ep_arps = []
for ep in eps:
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
#
# routes to the endpoints. We need these since there are no
# adj-fibs due to the fact the the BVI address has /32 and
# the subnet is not attached.
#
r = VppIpRoute(self, ep.ip, ep.ip_len,
[VppRoutePath(ep.ip,
ep.epg.bvi.sw_if_index,
proto=ep.proto)],
is_ip6=ep.is_ip6)
r.add_vpp_config()
ep_routes.append(r)
#
# ARP entries for the endpoints
#
a = VppNeighbor(self,
ep.epg.bvi.sw_if_index,
ep.itf.remote_mac,
ep.ip, af=ep.af)
a.add_vpp_config()
ep_arps.append(a)
# add each EP itf to the its BD
self.vapi.sw_interface_set_l2_bridge(ep.itf.sw_if_index,
ep.epg.bd)
# add the BD ARP termination entry
self.vapi.bd_ip_mac_add_del(bd_id=ep.epg.bd,
mac=ep.bin_mac,
ip=ep.ip_n,
is_ipv6=0,
is_add=1)
# L2 FIB entry
self.vapi.l2fib_add_del(ep.mac,
ep.epg.bd,
ep.itf.sw_if_index,
is_add=1)
# Add static mappings for each EP from the 10/8 to 11/8 network
if ep.af == AF_INET:
self.vapi.nat44_add_del_static_mapping(ep.ip_n,
ep.floating_ip_n,
vrf_id=0,
addr_only=1)
else:
self.vapi.nat66_add_del_static_mapping(ep.ip_n,
ep.floating_ip_n,
vrf_id=0)
# VPP EP create ...
ep.add_vpp_config()
# ... results in a Gratuitous ARP/ND on the EPG's uplink
rx = ep.epg.uplink.get_capture(1, timeout=0.2)
if ep.is_ip6:
self.assertTrue(rx[0].haslayer(ICMPv6ND_NA))
self.assertEqual(rx[0][ICMPv6ND_NA].tgt, ep.ip)
else:
self.assertTrue(rx[0].haslayer(ARP))
self.assertEqual(rx[0][ARP].psrc, ep.ip)
self.assertEqual(rx[0][ARP].pdst, ep.ip)
# add the BD ARP termination entry for floating IP
self.vapi.bd_ip_mac_add_del(bd_id=epg_nat.bd,
mac=ep.bin_mac,
ip=ep.floating_ip_n,
is_ipv6=ep.is_ip6,
is_add=1)
# floating IPs route via EPG recirc
r = VppIpRoute(self, ep.floating_ip, ep.ip_len,
[VppRoutePath(ep.floating_ip,
ep.recirc.recirc.sw_if_index,
is_dvr=1,
proto=ep.proto)],
table_id=20,
is_ip6=ep.is_ip6)
r.add_vpp_config()
ep_routes.append(r)
# L2 FIB entries in the NAT EPG BD to bridge the packets from
# the outside direct to the internal EPG
self.vapi.l2fib_add_del(ep.mac,
epg_nat.bd,
ep.recirc.recirc.sw_if_index,
is_add=1)
#
# ARP packets for unknown IP are flooded
#
pkt_arp = (Ether(dst="ff:ff:ff:ff:ff:ff",
src=self.pg0.remote_mac) /
ARP(op="who-has",
hwdst="ff:ff:ff:ff:ff:ff",
hwsrc=self.pg0.remote_mac,
pdst=epgs[0].bvi_ip4,
psrc="10.0.0.88"))
self.send_and_expect(self.pg0, [pkt_arp], self.pg0)
#
# ARP/ND packets get a response
#
pkt_arp = (Ether(dst="ff:ff:ff:ff:ff:ff",
src=self.pg0.remote_mac) /
ARP(op="who-has",
hwdst="ff:ff:ff:ff:ff:ff",
hwsrc=self.pg0.remote_mac,
pdst=epgs[0].bvi_ip4,
psrc=eps[0].ip))
self.send_and_expect(self.pg0, [pkt_arp], self.pg0)
nsma = in6_getnsma(inet_pton(AF_INET6, eps[4].ip))
d = inet_ntop(AF_INET6, nsma)
pkt_nd = (Ether(dst=in6_getnsmac(nsma)) /
IPv6(dst=d, src=eps[4].ip) /
ICMPv6ND_NS(tgt=epgs[0].bvi_ip6) /
ICMPv6NDOptSrcLLAddr(lladdr=self.pg0.remote_mac))
self.send_and_expect(self.pg0, [pkt_nd], self.pg0)
#
# broadcast packets are flooded
#
pkt_bcast = (Ether(dst="ff:ff:ff:ff:ff:ff",
src=self.pg0.remote_mac) /
IP(src=eps[0].ip, dst="232.1.1.1") /
UDP(sport=1234, dport=1234) /
Raw('\xa5' * 100))
self.vapi.cli("clear trace")
self.pg0.add_stream(pkt_bcast)
self.pg_enable_capture(self.pg_interfaces)
self.pg_start()
rxd = eps[1].itf.get_capture(1)
self.assertEqual(rxd[0][Ether].dst, pkt_bcast[Ether].dst)
rxd = epgs[0].uplink.get_capture(1)
self.assertEqual(rxd[0][Ether].dst, pkt_bcast[Ether].dst)
#
# packets to non-local L3 destinations dropped
#
pkt_intra_epg_220_ip4 = (Ether(src=self.pg0.remote_mac,
dst=self.router_mac) /
IP(src=eps[0].ip, dst="10.0.0.99") /
UDP(sport=1234, dport=1234) /
Raw('\xa5' * 100))
pkt_inter_epg_222_ip4 = (Ether(src=self.pg0.remote_mac,
dst=self.router_mac) /
IP(src=eps[0].ip, dst="10.0.1.99") /
UDP(sport=1234, dport=1234) /
Raw('\xa5' * 100))
self.send_and_assert_no_replies(self.pg0, pkt_intra_epg_220_ip4 * 65)
pkt_inter_epg_222_ip6 = (Ether(src=self.pg0.remote_mac,
dst=self.router_mac) /
IPv6(src=eps[4].ip, dst="2001:10::99") /
UDP(sport=1234, dport=1234) /
Raw('\xa5' * 100))
self.send_and_assert_no_replies(self.pg0, pkt_inter_epg_222_ip6 * 65)
#
# Add the subnet routes
#
s41 = VppGbpSubnet(self, 0, "10.0.0.0", 24)
s42 = VppGbpSubnet(self, 0, "10.0.1.0", 24)
s43 = VppGbpSubnet(self, 0, "10.0.2.0", 24)
s41.add_vpp_config()
s42.add_vpp_config()
s43.add_vpp_config()
s61 = VppGbpSubnet(self, 0, "2001:10::1", 64, is_ip6=True)
s62 = VppGbpSubnet(self, 0, "2001:10:1::1", 64, is_ip6=True)
s63 = VppGbpSubnet(self, 0, "2001:10:2::1", 64, is_ip6=True)
s61.add_vpp_config()
s62.add_vpp_config()
s63.add_vpp_config()
self.send_and_expect_bridged(self.pg0,
pkt_intra_epg_220_ip4 * 65,
self.pg4)
self.send_and_expect_bridged(self.pg3,
pkt_inter_epg_222_ip4 * 65,
self.pg6)
self.send_and_expect_bridged6(self.pg3,
pkt_inter_epg_222_ip6 * 65,
self.pg6)
self.logger.info(self.vapi.cli("sh ip fib 11.0.0.2"))
self.logger.info(self.vapi.cli("sh gbp endpoint-group"))
self.logger.info(self.vapi.cli("sh gbp endpoint"))
self.logger.info(self.vapi.cli("sh gbp recirc"))
self.logger.info(self.vapi.cli("sh int"))
self.logger.info(self.vapi.cli("sh int addr"))
self.logger.info(self.vapi.cli("sh int feat loop6"))
self.logger.info(self.vapi.cli("sh vlib graph ip4-gbp-src-classify"))
self.logger.info(self.vapi.cli("sh int feat loop3"))
#
# Packet destined to unknown unicast is sent on the epg uplink ...
#
pkt_intra_epg_220_to_uplink = (Ether(src=self.pg0.remote_mac,
dst="00:00:00:33:44:55") /
IP(src=eps[0].ip, dst="10.0.0.99") /
UDP(sport=1234, dport=1234) /
Raw('\xa5' * 100))
self.send_and_expect_bridged(self.pg0,
pkt_intra_epg_220_to_uplink * 65,
self.pg4)
# ... and nowhere else
self.pg1.get_capture(0, timeout=0.1)
self.pg1.assert_nothing_captured(remark="Flood onto other VMS")
pkt_intra_epg_221_to_uplink = (Ether(src=self.pg2.remote_mac,
dst="00:00:00:33:44:66") /
IP(src=eps[0].ip, dst="10.0.0.99") /
UDP(sport=1234, dport=1234) /
Raw('\xa5' * 100))
self.send_and_expect_bridged(self.pg2,
pkt_intra_epg_221_to_uplink * 65,
self.pg5)
#
# Packets from the uplink are forwarded in the absence of a contract
#
pkt_intra_epg_220_from_uplink = (Ether(src="00:00:00:33:44:55",
dst=self.pg0.remote_mac) /
IP(src=eps[0].ip, dst="10.0.0.99") /
UDP(sport=1234, dport=1234) /
Raw('\xa5' * 100))
self.send_and_expect_bridged(self.pg4,
pkt_intra_epg_220_from_uplink * 65,
self.pg0)
#
# in the absence of policy, endpoints in the same EPG
# can communicate
#
pkt_intra_epg = (Ether(src=self.pg0.remote_mac,
dst=self.pg1.remote_mac) /
IP(src=eps[0].ip, dst=eps[1].ip) /
UDP(sport=1234, dport=1234) /
Raw('\xa5' * 100))
self.send_and_expect_bridged(self.pg0, pkt_intra_epg * 65, self.pg1)
#
# in the abscense of policy, endpoints in the different EPG
# cannot communicate
#
pkt_inter_epg_220_to_221 = (Ether(src=self.pg0.remote_mac,
dst=self.pg2.remote_mac) /
IP(src=eps[0].ip, dst=eps[2].ip) /
UDP(sport=1234, dport=1234) /
Raw('\xa5' * 100))
pkt_inter_epg_221_to_220 = (Ether(src=self.pg2.remote_mac,
dst=self.pg0.remote_mac) /
IP(src=eps[2].ip, dst=eps[0].ip) /
UDP(sport=1234, dport=1234) /
Raw('\xa5' * 100))
pkt_inter_epg_220_to_222 = (Ether(src=self.pg0.remote_mac,
dst=self.router_mac) /
IP(src=eps[0].ip, dst=eps[3].ip) /
UDP(sport=1234, dport=1234) /
Raw('\xa5' * 100))
self.send_and_assert_no_replies(self.pg0,
pkt_inter_epg_220_to_221 * 65)
self.send_and_assert_no_replies(self.pg0,
pkt_inter_epg_220_to_222 * 65)
#
# A uni-directional contract from EPG 220 -> 221
#
acl = VppGbpAcl(self)
rule = acl.create_rule(permit_deny=1, proto=17)
rule2 = acl.create_rule(is_ipv6=1, permit_deny=1, proto=17)
acl_index = acl.add_vpp_config([rule, rule2])
c1 = VppGbpContract(self, 220, 221, acl_index)
c1.add_vpp_config()
self.send_and_expect_bridged(self.pg0,
pkt_inter_epg_220_to_221 * 65,
self.pg2)
self.send_and_assert_no_replies(self.pg0,
pkt_inter_epg_220_to_222 * 65)
#
# contract for the return direction
#
c2 = VppGbpContract(self, 221, 220, acl_index)
c2.add_vpp_config()
self.send_and_expect_bridged(self.pg0,
pkt_inter_epg_220_to_221 * 65,
self.pg2)
self.send_and_expect_bridged(self.pg2,
pkt_inter_epg_221_to_220 * 65,
self.pg0)
#
# check that inter group is still disabled for the groups
# not in the contract.
#
self.send_and_assert_no_replies(self.pg0,
pkt_inter_epg_220_to_222 * 65)
#
# A uni-directional contract from EPG 220 -> 222 'L3 routed'
#
c3 = VppGbpContract(self, 220, 222, acl_index)
c3.add_vpp_config()
self.logger.info(self.vapi.cli("sh gbp contract"))
self.send_and_expect_routed(self.pg0,
pkt_inter_epg_220_to_222 * 65,
self.pg3,
self.router_mac)
#
# remove both contracts, traffic stops in both directions
#
c2.remove_vpp_config()
c1.remove_vpp_config()
c3.remove_vpp_config()
acl.remove_vpp_config()
self.send_and_assert_no_replies(self.pg2,
pkt_inter_epg_221_to_220 * 65)
self.send_and_assert_no_replies(self.pg0,
pkt_inter_epg_220_to_221 * 65)
self.send_and_expect_bridged(self.pg0, pkt_intra_epg * 65, self.pg1)
#
# EPs to the outside world
#
# in the EP's RD an external subnet via the NAT EPG's recirc
se1 = VppGbpSubnet(self, 0, "0.0.0.0", 0,
is_internal=False,
sw_if_index=recirc_nat.recirc.sw_if_index,
epg=epg_nat.epg)
se1.add_vpp_config()
se2 = VppGbpSubnet(self, 0, "11.0.0.0", 8,
is_internal=False,
sw_if_index=recirc_nat.recirc.sw_if_index,
epg=epg_nat.epg)
se2.add_vpp_config()
se16 = VppGbpSubnet(self, 0, "::", 0,
is_internal=False,
sw_if_index=recirc_nat.recirc.sw_if_index,
epg=epg_nat.epg,
is_ip6=True)
se16.add_vpp_config()
# in the NAT RD an external subnet via the NAT EPG's uplink
se3 = VppGbpSubnet(self, 20, "0.0.0.0", 0,
is_internal=False,
sw_if_index=epg_nat.uplink.sw_if_index,
epg=epg_nat.epg)
se36 = VppGbpSubnet(self, 20, "::", 0,
is_internal=False,
sw_if_index=epg_nat.uplink.sw_if_index,
epg=epg_nat.epg,
is_ip6=True)
se4 = VppGbpSubnet(self, 20, "11.0.0.0", 8,
is_internal=False,
sw_if_index=epg_nat.uplink.sw_if_index,
epg=epg_nat.epg)
se3.add_vpp_config()
se36.add_vpp_config()
se4.add_vpp_config()
self.logger.info(self.vapi.cli("sh ip fib 0.0.0.0/0"))
self.logger.info(self.vapi.cli("sh ip fib 11.0.0.1"))
self.logger.info(self.vapi.cli("sh ip6 fib ::/0"))
self.logger.info(self.vapi.cli("sh ip6 fib %s" %
eps[4].floating_ip))
#
# From an EP to an outside addess: IN2OUT
#
pkt_inter_epg_220_to_global = (Ether(src=self.pg0.remote_mac,
dst=self.router_mac) /
IP(src=eps[0].ip, dst="1.1.1.1") /
UDP(sport=1234, dport=1234) /
Raw('\xa5' * 100))
# no policy yet
self.send_and_assert_no_replies(self.pg0,
pkt_inter_epg_220_to_global * 65)
acl2 = VppGbpAcl(self)
rule = acl2.create_rule(permit_deny=1, proto=17, sport_from=1234,
sport_to=1234, dport_from=1234, dport_to=1234)
rule2 = acl2.create_rule(is_ipv6=1, permit_deny=1, proto=17,
sport_from=1234, sport_to=1234,
dport_from=1234, dport_to=1234)
acl_index2 = acl2.add_vpp_config([rule, rule2])
c4 = VppGbpContract(self, 220, 333, acl_index2)
c4.add_vpp_config()
self.send_and_expect_natted(self.pg0,
pkt_inter_epg_220_to_global * 65,
self.pg7,
eps[0].floating_ip)
pkt_inter_epg_220_to_global = (Ether(src=self.pg0.remote_mac,
dst=self.router_mac) /
IPv6(src=eps[4].ip, dst="6001::1") /
UDP(sport=1234, dport=1234) /
Raw('\xa5' * 100))
self.send_and_expect_natted6(self.pg0,
pkt_inter_epg_220_to_global * 65,
self.pg7,
eps[4].floating_ip)
#
# From a global address to an EP: OUT2IN
#
pkt_inter_epg_220_from_global = (Ether(src=self.router_mac,
dst=self.pg0.remote_mac) /
IP(dst=eps[0].floating_ip,
src="1.1.1.1") /
UDP(sport=1234, dport=1234) /
Raw('\xa5' * 100))
self.send_and_assert_no_replies(self.pg7,
pkt_inter_epg_220_from_global * 65)
c5 = VppGbpContract(self, 333, 220, acl_index2)
c5.add_vpp_config()
self.send_and_expect_unnatted(self.pg7,
pkt_inter_epg_220_from_global * 65,
eps[0].itf,
eps[0].ip)
pkt_inter_epg_220_from_global = (Ether(src=self.router_mac,
dst=self.pg0.remote_mac) /
IPv6(dst=eps[4].floating_ip,
src="6001::1") /
UDP(sport=1234, dport=1234) /
Raw('\xa5' * 100))
self.send_and_expect_unnatted6(self.pg7,
pkt_inter_epg_220_from_global * 65,
eps[4].itf,
eps[4].ip)
#
# From a local VM to another local VM using resp. public addresses:
# IN2OUT2IN
#
pkt_intra_epg_220_global = (Ether(src=self.pg0.remote_mac,
dst=self.router_mac) /
IP(src=eps[0].ip,
dst=eps[1].floating_ip) /
UDP(sport=1234, dport=1234) /
Raw('\xa5' * 100))
self.send_and_expect_double_natted(eps[0].itf,
pkt_intra_epg_220_global * 65,
eps[1].itf,
eps[0].floating_ip,
eps[1].ip)
pkt_intra_epg_220_global = (Ether(src=self.pg4.remote_mac,
dst=self.router_mac) /
IPv6(src=eps[4].ip,
dst=eps[5].floating_ip) /
UDP(sport=1234, dport=1234) /
Raw('\xa5' * 100))
self.send_and_expect_double_natted6(eps[4].itf,
pkt_intra_epg_220_global * 65,
eps[5].itf,
eps[4].floating_ip,
eps[5].ip)
#
# cleanup
#
for ep in eps:
# del static mappings for each EP from the 10/8 to 11/8 network
if ep.af == AF_INET:
self.vapi.nat44_add_del_static_mapping(ep.ip_n,
ep.floating_ip_n,
vrf_id=0,
addr_only=1,
is_add=0)
else:
self.vapi.nat66_add_del_static_mapping(ep.ip_n,
ep.floating_ip_n,
vrf_id=0,
is_add=0)
for epg in epgs:
# IP config on the BVI interfaces
self.vapi.sw_interface_add_del_address(epg.bvi.sw_if_index,
epg.bvi_ip4_n,
32,
is_add=0)
self.vapi.sw_interface_add_del_address(epg.bvi.sw_if_index,
epg.bvi_ip6_n,
128,
is_add=0,
is_ipv6=True)
self.logger.info(self.vapi.cli("sh int addr"))
epg.uplink.set_table_ip4(0)
epg.uplink.set_table_ip6(0)
if epg != epgs[0] and epg != epgs[3]:
epg.bvi.set_table_ip4(0)
epg.bvi.set_table_ip6(0)
self.vapi.nat44_interface_add_del_feature(epg.bvi.sw_if_index,
is_inside=1,
is_add=0)
self.vapi.nat66_add_del_interface(epg.bvi.sw_if_index,
is_inside=1,
is_add=0)
for recirc in recircs:
recirc.recirc.set_table_ip4(0)
recirc.recirc.set_table_ip6(0)
self.vapi.nat44_interface_add_del_feature(
recirc.recirc.sw_if_index,
is_inside=0,
is_add=0)
self.vapi.nat66_add_del_interface(
recirc.recirc.sw_if_index,
is_inside=0,
is_add=0)
if __name__ == '__main__':
unittest.main(testRunner=VppTestRunner)
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