from framework import VppTestCase, VppTestRunner
from vpp_neighbor import VppNeighbor, find_nbr
from vpp_ip_route import VppIpRoute, VppRoutePath, find_route, \
- VppIpTable
+ VppIpTable, DpoProto
+from vpp_papi import VppEnum
+import scapy.compat
from scapy.packet import Raw
from scapy.layers.l2 import Ether, ARP, Dot1Q
from scapy.layers.inet import IP, UDP
+from scapy.layers.inet6 import IPv6
from scapy.contrib.mpls import MPLS
+from scapy.layers.inet6 import IPv6
# not exported by scapy, so redefined here
arp_opts = {"who-has": 1, "is-at": 2}
self.pg1._remote_hosts[9].ip4)
#
- # Add a hierachy of routes for a host in the sub-net.
+ # Add a hierarchy of routes for a host in the sub-net.
# Should still get an ARP resp since the cover is attached
#
p = (Ether(dst="ff:ff:ff:ff:ff:ff", src=self.pg1.remote_mac) /
#
# 2 - don't respond to ARP request from an address not within the
# interface's sub-net
- # 2b - to a prxied address
- # 2c - not within a differents interface's sub-net
+ # 2b - to a proxied address
+ # 2c - not within a different interface's sub-net
p = (Ether(dst="ff:ff:ff:ff:ff:ff", src=self.pg0.remote_mac) /
ARP(op="who-has",
hwsrc=self.pg0.remote_mac,
#
# Configure Proxy ARP for the subnet on PG0addresses on pg0
#
- self.vapi.proxy_arp_add_del(self.pg0._local_ip4n_subnet,
- self.pg0._local_ip4n_bcast)
+ self.vapi.proxy_arp_add_del(self.pg0._local_ip4_subnet,
+ self.pg0._local_ip4_bcast)
# Make pg2 un-numbered to pg0
#
# cleanup
#
self.pg2.set_proxy_arp(0)
- self.vapi.proxy_arp_add_del(self.pg0._local_ip4n_subnet,
- self.pg0._local_ip4n_bcast,
+ self.vapi.proxy_arp_add_del(self.pg0._local_ip4_subnet,
+ self.pg0._local_ip4_bcast,
is_add=0)
def test_proxy_arp(self):
self.pg1.generate_remote_hosts(2)
#
- # Proxy ARP rewquest packets for each interface
+ # Proxy ARP request packets for each interface
#
arp_req_pg0 = (Ether(src=self.pg0.remote_mac,
dst="ff:ff:ff:ff:ff:ff") /
self.pg2.generate_remote_hosts(2)
#
- # Add a reoute with out going label via an ARP unresolved next-hop
+ # Add a route with out going label via an ARP unresolved next-hop
#
ip_10_0_0_1 = VppIpRoute(self, "10.0.0.1", 32,
[VppRoutePath(self.pg2.remote_hosts[1].ip4,
UDP(sport=1234, dport=1234) /
Raw())
- self.pg0.add_stream(p0)
- self.pg_enable_capture(self.pg_interfaces)
- self.pg_start()
-
- rx1 = self.pg1.get_capture(1)
+ rx1 = self.send_and_expect(self.pg0, [p0], self.pg1)
self.verify_arp_req(rx1[0],
self.pg1.local_mac,
hwsrc="00:00:5e:00:01:09", pdst=self.pg1.local_ip4,
psrc=self.pg1.remote_ip4))
- self.pg1.add_stream(p1)
- self.pg_enable_capture(self.pg_interfaces)
- self.pg_start()
+ self.send_and_assert_no_replies(self.pg1, p1, "ARP reply")
#
# IP packet destined for pg1 remote host arrives on pg0 again.
# VPP should have an ARP entry for that address now and the packet
# should be sent out pg1.
#
- self.pg0.add_stream(p0)
- self.pg_enable_capture(self.pg_interfaces)
- self.pg_start()
-
- rx1 = self.pg1.get_capture(1)
+ rx1 = self.send_and_expect(self.pg0, [p0], self.pg1)
self.verify_ip(rx1[0],
self.pg1.local_mac,
#
# remove the duplicate on pg1
- # packet stream shoud generate ARPs out of pg1
+ # packet stream should generate ARPs out of pg1
#
arp_pg1.remove_vpp_config()
#
# change the interface's MAC
#
- mac = [chr(0x00), chr(0x00), chr(0x00),
- chr(0x33), chr(0x33), chr(0x33)]
+ mac = [scapy.compat.chb(0x00), scapy.compat.chb(0x00),
+ scapy.compat.chb(0x00), scapy.compat.chb(0x33),
+ scapy.compat.chb(0x33), scapy.compat.chb(0x33)]
mac_string = ''.join(mac)
self.vapi.sw_interface_set_mac_address(self.pg1.sw_if_index,
self.pg1.remote_hosts[1].ip4)
#
- # set the mac address on the inteface that does not have a
+ # set the mac address on the interface that does not have a
# configured subnet and thus no glean
#
self.vapi.sw_interface_set_mac_address(self.pg2.sw_if_index,
mac=self.pg1.remote_hosts[3].mac))
#
- # GARPs (requets nor replies) for host we don't know yet
+ # GARPs (request nor replies) for host we don't know yet
# don't result in new neighbour entries
#
p1 = (Ether(dst="ff:ff:ff:ff:ff:ff",
self.pg1.remote_hosts[2].ip4))
def test_arp_incomplete(self):
+ """ Incomplete Entries """
#
- # ensure that we throttle the ARP requests
+ # ensure that we throttle the ARP and ND requests
#
self.pg0.generate_remote_hosts(2)
+ #
+ # IPv4/ARP
+ #
ip_10_0_0_1 = VppIpRoute(self, "10.0.0.1", 32,
[VppRoutePath(self.pg0.remote_hosts[1].ip4,
- self.pg0.sw_if_index,
- labels=[55])])
+ self.pg0.sw_if_index)])
ip_10_0_0_1.add_vpp_config()
p1 = (Ether(dst=self.pg1.local_mac,
# how many we get is going to be dependent on the time for packet
# processing but it should be small
#
- self.assertTrue(len(rx) < 64)
+ self.assertLess(len(rx), 64)
+
+ #
+ # IPv6/ND
+ #
+ ip_10_1 = VppIpRoute(self, "10::1", 128,
+ [VppRoutePath(self.pg0.remote_hosts[1].ip6,
+ self.pg0.sw_if_index,
+ proto=DpoProto.DPO_PROTO_IP6)],
+ is_ip6=1)
+ ip_10_1.add_vpp_config()
+
+ p1 = (Ether(dst=self.pg1.local_mac,
+ src=self.pg1.remote_mac) /
+ IPv6(src=self.pg1.remote_ip6,
+ dst="10::1") /
+ UDP(sport=1234, dport=1234) /
+ Raw())
+
+ self.pg1.add_stream(p1 * 257)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+ rx = self.pg0._get_capture(1)
+
+ #
+ # how many we get is going to be dependent on the time for packet
+ # processing but it should be small
+ #
+ self.assertLess(len(rx), 64)
+
+ def test_arp_forus(self):
+ """ ARP for for-us """
+
+ #
+ # Test that VPP responds with ARP requests to addresses that
+ # are connected and local routes.
+ # Use one of the 'remote' addresses in the subnet as a local address
+ # The intention of this route is that it then acts like a secondary
+ # address added to an interface
+ #
+ self.pg0.generate_remote_hosts(2)
+
+ forus = VppIpRoute(self, self.pg0.remote_hosts[1].ip4, 32,
+ [VppRoutePath(self.pg0.remote_hosts[1].ip4,
+ self.pg0.sw_if_index)],
+ is_local=1)
+ forus.add_vpp_config()
+
+ p = (Ether(dst="ff:ff:ff:ff:ff:ff",
+ src=self.pg0.remote_mac) /
+ ARP(op="who-has",
+ hwdst=self.pg0.local_mac,
+ hwsrc=self.pg0.remote_mac,
+ pdst=self.pg0.remote_hosts[1].ip4,
+ psrc=self.pg0.remote_ip4))
+
+ rx = self.send_and_expect(self.pg0, [p], self.pg0)
+
+ self.verify_arp_resp(rx[0],
+ self.pg0.local_mac,
+ self.pg0.remote_mac,
+ self.pg0.remote_hosts[1].ip4,
+ self.pg0.remote_ip4)
+
+
+class NeighborStatsTestCase(VppTestCase):
+ """ ARP/ND Counters """
+
+ def setUp(self):
+ super(NeighborStatsTestCase, self).setUp()
+
+ self.create_pg_interfaces(range(2))
+
+ # pg0 configured with ip4 and 6 addresses used for input
+ # pg1 configured with ip4 and 6 addresses used for output
+ # pg2 is unnumbered to pg0
+ for i in self.pg_interfaces:
+ i.admin_up()
+ i.config_ip4()
+ i.config_ip6()
+ i.resolve_arp()
+ i.resolve_ndp()
+
+ def tearDown(self):
+ super(NeighborStatsTestCase, self).tearDown()
+
+ for i in self.pg_interfaces:
+ i.unconfig_ip4()
+ i.unconfig_ip6()
+ i.admin_down()
+
+ def test_arp_stats(self):
+ """ ARP Counters """
+
+ self.vapi.cli("adj counters enable")
+ self.pg1.generate_remote_hosts(2)
+
+ arp1 = VppNeighbor(self,
+ self.pg1.sw_if_index,
+ self.pg1.remote_hosts[0].mac,
+ self.pg1.remote_hosts[0].ip4)
+ arp1.add_vpp_config()
+ arp2 = VppNeighbor(self,
+ self.pg1.sw_if_index,
+ self.pg1.remote_hosts[1].mac,
+ self.pg1.remote_hosts[1].ip4)
+ arp2.add_vpp_config()
+
+ p1 = (Ether(dst=self.pg0.local_mac,
+ src=self.pg0.remote_mac) /
+ IP(src=self.pg0.remote_ip4,
+ dst=self.pg1.remote_hosts[0].ip4) /
+ UDP(sport=1234, dport=1234) /
+ Raw())
+ p2 = (Ether(dst=self.pg0.local_mac,
+ src=self.pg0.remote_mac) /
+ IP(src=self.pg0.remote_ip4,
+ dst=self.pg1.remote_hosts[1].ip4) /
+ UDP(sport=1234, dport=1234) /
+ Raw())
+
+ rx = self.send_and_expect(self.pg0, p1 * 65, self.pg1)
+ rx = self.send_and_expect(self.pg0, p2 * 65, self.pg1)
+
+ self.assertEqual(65, arp1.get_stats()['packets'])
+ self.assertEqual(65, arp2.get_stats()['packets'])
+
+ rx = self.send_and_expect(self.pg0, p1 * 65, self.pg1)
+ self.assertEqual(130, arp1.get_stats()['packets'])
+
+ def test_nd_stats(self):
+ """ ND Counters """
+
+ self.vapi.cli("adj counters enable")
+ self.pg0.generate_remote_hosts(3)
+
+ nd1 = VppNeighbor(self,
+ self.pg0.sw_if_index,
+ self.pg0.remote_hosts[1].mac,
+ self.pg0.remote_hosts[1].ip6)
+ nd1.add_vpp_config()
+ nd2 = VppNeighbor(self,
+ self.pg0.sw_if_index,
+ self.pg0.remote_hosts[2].mac,
+ self.pg0.remote_hosts[2].ip6)
+ nd2.add_vpp_config()
+
+ p1 = (Ether(dst=self.pg1.local_mac,
+ src=self.pg1.remote_mac) /
+ IPv6(src=self.pg1.remote_ip6,
+ dst=self.pg0.remote_hosts[1].ip6) /
+ UDP(sport=1234, dport=1234) /
+ Raw())
+ p2 = (Ether(dst=self.pg1.local_mac,
+ src=self.pg1.remote_mac) /
+ IPv6(src=self.pg1.remote_ip6,
+ dst=self.pg0.remote_hosts[2].ip6) /
+ UDP(sport=1234, dport=1234) /
+ Raw())
+
+ rx = self.send_and_expect(self.pg1, p1 * 16, self.pg0)
+ rx = self.send_and_expect(self.pg1, p2 * 16, self.pg0)
+
+ self.assertEqual(16, nd1.get_stats()['packets'])
+ self.assertEqual(16, nd2.get_stats()['packets'])
+
+ rx = self.send_and_expect(self.pg1, p1 * 65, self.pg0)
+ self.assertEqual(81, nd1.get_stats()['packets'])
if __name__ == '__main__':
Code Review / vpp.git / blobdiff