from framework import VppTestCase, VppTestRunner
from vpp_sub_interface import VppSubInterface, VppDot1QSubint, VppDot1ADSubint
from vpp_ip_route import VppIpRoute, VppRoutePath, VppIpMRoute, \
- VppMRoutePath, MRouteItfFlags, MRouteEntryFlags, VppMplsIpBind
+ VppMRoutePath, MRouteItfFlags, MRouteEntryFlags, VppMplsIpBind, \
+ VppMplsTable, VppIpTable
from scapy.packet import Raw
from scapy.layers.l2 import Ether, Dot1Q, ARP
-from scapy.layers.inet import IP, UDP, ICMP, icmptypes, icmpcodes
+from scapy.layers.inet import IP, UDP, TCP, ICMP, icmptypes, icmpcodes
from util import ppp
from scapy.contrib.mpls import MPLS
:ivar list interfaces: pg interfaces and subinterfaces.
:ivar dict flows: IPv4 packet flows in test.
- :ivar list pg_if_packet_sizes: packet sizes in test.
"""
super(TestIPv4, self).setUp()
self.flows[self.pg2.sub_if] = [self.pg0, self.pg1.sub_if]
# packet sizes
- self.pg_if_packet_sizes = [64, 512, 1518, 9018]
- self.sub_if_packet_sizes = [64, 512, 1518 + 4, 9018 + 4]
+ self.pg_if_packet_sizes = [64, 1500, 9020]
self.interfaces = list(self.pg_interfaces)
self.interfaces.extend(self.sub_interfaces)
(count, percent))
percent += 1
- def create_stream(self, src_if, packet_sizes):
+ def modify_packet(self, src_if, packet_size, pkt):
+ """Add load, set destination IP and extend packet to required packet
+ size for defined interface.
+
+ :param VppInterface src_if: Interface to create packet for.
+ :param int packet_size: Required packet size.
+ :param Scapy pkt: Packet to be modified.
+ """
+ dst_if_idx = packet_size / 10 % 2
+ dst_if = self.flows[src_if][dst_if_idx]
+ info = self.create_packet_info(src_if, dst_if)
+ payload = self.info_to_payload(info)
+ p = pkt/Raw(payload)
+ p[IP].dst = dst_if.remote_ip4
+ info.data = p.copy()
+ if isinstance(src_if, VppSubInterface):
+ p = src_if.add_dot1_layer(p)
+ self.extend_packet(p, packet_size)
+
+ return p
+
+ def create_stream(self, src_if):
"""Create input packet stream for defined interface.
:param VppInterface src_if: Interface to create packet stream for.
- :param list packet_sizes: Required packet sizes.
"""
- pkts = []
- for i in range(0, 257):
- dst_if = self.flows[src_if][i % 2]
- info = self.create_packet_info(src_if, dst_if)
- payload = self.info_to_payload(info)
- p = (Ether(dst=src_if.local_mac, src=src_if.remote_mac) /
- IP(src=src_if.remote_ip4, dst=dst_if.remote_ip4) /
- UDP(sport=1234, dport=1234) /
- Raw(payload))
- info.data = p.copy()
- if isinstance(src_if, VppSubInterface):
- p = src_if.add_dot1_layer(p)
- size = packet_sizes[(i // 2) % len(packet_sizes)]
- self.extend_packet(p, size)
- pkts.append(p)
+ hdr_ext = 4 if isinstance(src_if, VppSubInterface) else 0
+ pkt_tmpl = (Ether(dst=src_if.local_mac, src=src_if.remote_mac) /
+ IP(src=src_if.remote_ip4) /
+ UDP(sport=1234, dport=1234))
+
+ pkts = [self.modify_packet(src_if, i, pkt_tmpl)
+ for i in xrange(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 xrange(self.pg_if_packet_sizes[1] + hdr_ext,
+ self.pg_if_packet_sizes[2] + hdr_ext, 50)]
+ pkts.extend(pkts_b)
+
return pkts
def verify_capture(self, dst_if, capture):
"""Verify captured input packet stream for defined interface.
:param VppInterface dst_if: Interface to verify captured packet stream
- for.
+ for.
:param list capture: Captured packet stream.
"""
self.logger.info("Verifying capture on interface %s" % dst_if.name)
Test scenario:
- Create IPv4 stream for pg0 interface
- - Create IPv4 tagged streams for pg1's and pg2's subinterface.
+ - Create IPv4 tagged streams for pg1's and pg2's sub-interface.
- Send and verify received packets on each interface.
"""
- pkts = self.create_stream(self.pg0, self.pg_if_packet_sizes)
+ pkts = self.create_stream(self.pg0)
self.pg0.add_stream(pkts)
for i in self.sub_interfaces:
- pkts = self.create_stream(i, self.sub_if_packet_sizes)
+ pkts = self.create_stream(i)
i.parent.add_stream(pkts)
self.pg_enable_capture(self.pg_interfaces)
self.verify_capture(i, pkts)
+class TestICMPEcho(VppTestCase):
+ """ ICMP Echo Test Case """
+
+ def setUp(self):
+ super(TestICMPEcho, self).setUp()
+
+ # create 1 pg interface
+ self.create_pg_interfaces(range(1))
+
+ for i in self.pg_interfaces:
+ i.admin_up()
+ i.config_ip4()
+ i.resolve_arp()
+
+ def tearDown(self):
+ super(TestICMPEcho, self).tearDown()
+ for i in self.pg_interfaces:
+ i.unconfig_ip4()
+ i.admin_down()
+
+ def test_icmp_echo(self):
+ """ VPP replies to ICMP Echo Request
+
+ Test scenario:
+
+ - Receive ICMP Echo Request message on pg0 interface.
+ - Check outgoing ICMP Echo Reply message on pg0 interface.
+ """
+
+ icmp_id = 0xb
+ icmp_seq = 5
+ icmp_load = '\x0a' * 18
+ p_echo_request = (Ether(src=self.pg0.remote_mac,
+ dst=self.pg0.local_mac) /
+ IP(src=self.pg0.remote_ip4, dst=self.pg0.local_ip4) /
+ ICMP(id=icmp_id, seq=icmp_seq) /
+ Raw(load=icmp_load))
+
+ self.pg0.add_stream(p_echo_request)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+
+ rx = self.pg0.get_capture(1)
+ rx = rx[0]
+ ether = rx[Ether]
+ ipv4 = rx[IP]
+ icmp = rx[ICMP]
+
+ self.assertEqual(ether.src, self.pg0.local_mac)
+ self.assertEqual(ether.dst, self.pg0.remote_mac)
+
+ self.assertEqual(ipv4.src, self.pg0.local_ip4)
+ self.assertEqual(ipv4.dst, self.pg0.remote_ip4)
+
+ self.assertEqual(icmptypes[icmp.type], "echo-reply")
+ self.assertEqual(icmp.id, icmp_id)
+ self.assertEqual(icmp.seq, icmp_seq)
+ self.assertEqual(icmp[Raw].load, icmp_load)
+
+
class TestIPv4FibCrud(VppTestCase):
""" FIB - add/update/delete - ip4 routes
i.unconfig_ip4()
i.admin_down()
- def send_and_assert_no_replies(self, intf, pkts, remark):
- intf.add_stream(pkts)
- self.pg_enable_capture(self.pg_interfaces)
- self.pg_start()
- for i in self.pg_interfaces:
- i.get_capture(0)
- i.assert_nothing_captured(remark=remark)
-
def test_ip_disabled(self):
""" IP Disabled """
for i in self.pg_interfaces:
i.admin_down()
- def send_and_assert_no_replies(self, intf, pkts, remark):
- intf.add_stream(pkts)
- self.pg_enable_capture(self.pg_interfaces)
- self.pg_start()
- for i in self.pg_interfaces:
- i.get_capture(0)
- i.assert_nothing_captured(remark=remark)
-
def test_ip_sub_nets(self):
""" IP Sub Nets """
super(TestIPLoadBalance, self).setUp()
self.create_pg_interfaces(range(5))
+ mpls_tbl = VppMplsTable(self, 0)
+ mpls_tbl.add_vpp_config()
for i in self.pg_interfaces:
i.admin_up()
i.enable_mpls()
def tearDown(self):
- super(TestIPLoadBalance, self).tearDown()
for i in self.pg_interfaces:
i.disable_mpls()
i.unconfig_ip4()
i.admin_down()
+ super(TestIPLoadBalance, self).tearDown()
def send_and_expect_load_balancing(self, input, pkts, outputs):
input.add_stream(pkts)
super(TestIPVlan0, self).setUp()
self.create_pg_interfaces(range(2))
+ mpls_tbl = VppMplsTable(self, 0)
+ mpls_tbl.add_vpp_config()
for i in self.pg_interfaces:
i.admin_up()
i.enable_mpls()
def tearDown(self):
- super(TestIPVlan0, self).tearDown()
for i in self.pg_interfaces:
i.disable_mpls()
i.unconfig_ip4()
i.admin_down()
-
- def send_and_expect(self, input, pkts, output):
- input.add_stream(pkts)
- self.pg_enable_capture(self.pg_interfaces)
- self.pg_start()
- rx = output.get_capture(len(pkts))
+ super(TestIPVlan0, self).tearDown()
def test_ip_vlan_0(self):
""" IP VLAN-0 """
self.send_and_expect(self.pg0, pkts, self.pg1)
+class TestIPPunt(VppTestCase):
+ """ IPv4 Punt Police/Redirect """
+
+ def setUp(self):
+ super(TestIPPunt, self).setUp()
+
+ self.create_pg_interfaces(range(2))
+
+ for i in self.pg_interfaces:
+ i.admin_up()
+ i.config_ip4()
+ i.resolve_arp()
+
+ def tearDown(self):
+ super(TestIPPunt, self).tearDown()
+ for i in self.pg_interfaces:
+ i.unconfig_ip4()
+ i.admin_down()
+
+ def test_ip_punt(self):
+ """ IP punt police and redirect """
+
+ p = (Ether(src=self.pg0.remote_mac,
+ dst=self.pg0.local_mac) /
+ IP(src=self.pg0.remote_ip4, dst=self.pg0.local_ip4) /
+ TCP(sport=1234, dport=1234) /
+ Raw('\xa5' * 100))
+
+ pkts = p * 1025
+
+ #
+ # Configure a punt redirect via pg1.
+ #
+ nh_addr = socket.inet_pton(socket.AF_INET,
+ self.pg1.remote_ip4)
+ self.vapi.ip_punt_redirect(self.pg0.sw_if_index,
+ self.pg1.sw_if_index,
+ nh_addr)
+
+ self.send_and_expect(self.pg0, pkts, self.pg1)
+
+ #
+ # add a policer
+ #
+ policer = self.vapi.policer_add_del("ip4-punt", 400, 0, 10, 0,
+ rate_type=1)
+ self.vapi.ip_punt_police(policer.policer_index)
+
+ self.vapi.cli("clear trace")
+ self.pg0.add_stream(pkts)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+
+ #
+ # the number of packet recieved should be greater than 0,
+ # but not equal to the number sent, since some were policed
+ #
+ rx = self.pg1._get_capture(1)
+ self.assertTrue(len(rx) > 0)
+ self.assertTrue(len(rx) < len(pkts))
+
+ #
+ # remove the poilcer. back to full rx
+ #
+ self.vapi.ip_punt_police(policer.policer_index, is_add=0)
+ self.vapi.policer_add_del("ip4-punt", 400, 0, 10, 0,
+ rate_type=1, is_add=0)
+ 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)
+
+
+class TestIPDeag(VppTestCase):
+ """ IPv4 Deaggregate Routes """
+
+ def setUp(self):
+ super(TestIPDeag, self).setUp()
+
+ self.create_pg_interfaces(range(3))
+
+ for i in self.pg_interfaces:
+ i.admin_up()
+ i.config_ip4()
+ i.resolve_arp()
+
+ def tearDown(self):
+ super(TestIPDeag, self).tearDown()
+ for i in self.pg_interfaces:
+ i.unconfig_ip4()
+ i.admin_down()
+
+ def test_ip_deag(self):
+ """ IP Deag Routes """
+
+ #
+ # Create a table to be used for:
+ # 1 - another destination address lookup
+ # 2 - a source address lookup
+ #
+ table_dst = VppIpTable(self, 1)
+ table_src = VppIpTable(self, 2)
+ table_dst.add_vpp_config()
+ table_src.add_vpp_config()
+
+ #
+ # Add a route in the default table to point to a deag/
+ # second lookup in each of these tables
+ #
+ route_to_dst = VppIpRoute(self, "1.1.1.1", 32,
+ [VppRoutePath("0.0.0.0",
+ 0xffffffff,
+ nh_table_id=1)])
+ route_to_src = VppIpRoute(self, "1.1.1.2", 32,
+ [VppRoutePath("0.0.0.0",
+ 0xffffffff,
+ nh_table_id=2,
+ is_source_lookup=1)])
+ route_to_dst.add_vpp_config()
+ route_to_src.add_vpp_config()
+
+ #
+ # packets to these destination are dropped, since they'll
+ # hit the respective default routes in the second table
+ #
+ p_dst = (Ether(src=self.pg0.remote_mac,
+ dst=self.pg0.local_mac) /
+ IP(src="5.5.5.5", dst="1.1.1.1") /
+ TCP(sport=1234, dport=1234) /
+ Raw('\xa5' * 100))
+ p_src = (Ether(src=self.pg0.remote_mac,
+ dst=self.pg0.local_mac) /
+ IP(src="2.2.2.2", dst="1.1.1.2") /
+ TCP(sport=1234, dport=1234) /
+ Raw('\xa5' * 100))
+ pkts_dst = p_dst * 257
+ pkts_src = p_src * 257
+
+ self.send_and_assert_no_replies(self.pg0, pkts_dst,
+ "IP in dst table")
+ self.send_and_assert_no_replies(self.pg0, pkts_src,
+ "IP in src table")
+
+ #
+ # add a route in the dst table to forward via pg1
+ #
+ route_in_dst = VppIpRoute(self, "1.1.1.1", 32,
+ [VppRoutePath(self.pg1.remote_ip4,
+ self.pg1.sw_if_index)],
+ table_id=1)
+ route_in_dst.add_vpp_config()
+ self.send_and_expect(self.pg0, pkts_dst, self.pg1)
+
+ #
+ # add a route in the src table to forward via pg2
+ #
+ route_in_src = VppIpRoute(self, "2.2.2.2", 32,
+ [VppRoutePath(self.pg2.remote_ip4,
+ self.pg2.sw_if_index)],
+ table_id=2)
+ route_in_src.add_vpp_config()
+ self.send_and_expect(self.pg0, pkts_src, self.pg2)
+
+
+class TestIPInput(VppTestCase):
+ """ IPv4 Input Exceptions """
+
+ def setUp(self):
+ super(TestIPInput, self).setUp()
+
+ self.create_pg_interfaces(range(2))
+
+ for i in self.pg_interfaces:
+ i.admin_up()
+ i.config_ip4()
+ i.resolve_arp()
+
+ def tearDown(self):
+ super(TestIPInput, self).tearDown()
+ for i in self.pg_interfaces:
+ i.unconfig_ip4()
+ i.admin_down()
+
+ def test_ip_input(self):
+ """ IP Input Exceptions """
+
+ # i can't find a way in scapy to construct an IP packet
+ # with a length less than the IP header length
+
+ #
+ # Packet too short - this is forwarded
+ #
+ p_short = (Ether(src=self.pg0.remote_mac,
+ dst=self.pg0.local_mac) /
+ IP(src=self.pg0.remote_ip4,
+ dst=self.pg1.remote_ip4,
+ len=40) /
+ UDP(sport=1234, dport=1234) /
+ Raw('\xa5' * 100))
+
+ rx = self.send_and_expect(self.pg0, p_short * 65, self.pg1)
+
+ #
+ # Packet too long - this is dropped
+ #
+ p_long = (Ether(src=self.pg0.remote_mac,
+ dst=self.pg0.local_mac) /
+ IP(src=self.pg0.remote_ip4,
+ dst=self.pg1.remote_ip4,
+ len=400) /
+ UDP(sport=1234, dport=1234) /
+ Raw('\xa5' * 100))
+
+ rx = self.send_and_assert_no_replies(self.pg0, p_long * 65,
+ "too long")
+
+ #
+ # bad chksum - this is dropped
+ #
+ p_chksum = (Ether(src=self.pg0.remote_mac,
+ dst=self.pg0.local_mac) /
+ IP(src=self.pg0.remote_ip4,
+ dst=self.pg1.remote_ip4,
+ chksum=400) /
+ UDP(sport=1234, dport=1234) /
+ Raw('\xa5' * 100))
+
+ rx = self.send_and_assert_no_replies(self.pg0, p_chksum * 65,
+ "bad checksum")
+
+ #
+ # bad version - this is dropped
+ #
+ p_ver = (Ether(src=self.pg0.remote_mac,
+ dst=self.pg0.local_mac) /
+ IP(src=self.pg0.remote_ip4,
+ dst=self.pg1.remote_ip4,
+ version=3) /
+ UDP(sport=1234, dport=1234) /
+ Raw('\xa5' * 100))
+
+ rx = self.send_and_assert_no_replies(self.pg0, p_ver * 65,
+ "funky version")
+
+ #
+ # fragment offset 1 - this is dropped
+ #
+ p_frag = (Ether(src=self.pg0.remote_mac,
+ dst=self.pg0.local_mac) /
+ IP(src=self.pg0.remote_ip4,
+ dst=self.pg1.remote_ip4,
+ frag=1) /
+ UDP(sport=1234, dport=1234) /
+ Raw('\xa5' * 100))
+
+ rx = self.send_and_assert_no_replies(self.pg0, p_frag * 65,
+ "frag offset")
+
+ #
+ # TTL expired packet
+ #
+ p_ttl = (Ether(src=self.pg0.remote_mac,
+ dst=self.pg0.local_mac) /
+ IP(src=self.pg0.remote_ip4,
+ dst=self.pg1.remote_ip4,
+ ttl=1) /
+ UDP(sport=1234, dport=1234) /
+ Raw('\xa5' * 100))
+
+ rx = self.send_and_expect(self.pg0, p_ttl * 65, self.pg0)
+
+ rx = rx[0]
+ icmp = rx[ICMP]
+
+ self.assertEqual(icmptypes[icmp.type], "time-exceeded")
+ self.assertEqual(icmpcodes[icmp.type][icmp.code],
+ "ttl-zero-during-transit")
+ self.assertEqual(icmp.src, self.pg0.remote_ip4)
+ self.assertEqual(icmp.dst, self.pg1.remote_ip4)
+
+ #
+ # MTU exceeded
+ #
+ p_mtu = (Ether(src=self.pg0.remote_mac,
+ dst=self.pg0.local_mac) /
+ IP(src=self.pg0.remote_ip4,
+ dst=self.pg1.remote_ip4,
+ ttl=10, flags='DF') /
+ UDP(sport=1234, dport=1234) /
+ Raw('\xa5' * 2000))
+
+ self.vapi.sw_interface_set_mtu(self.pg1.sw_if_index, [1500, 0, 0, 0])
+
+ rx = self.send_and_expect(self.pg0, p_mtu * 65, self.pg0)
+ rx = rx[0]
+ icmp = rx[ICMP]
+
+ self.assertEqual(icmptypes[icmp.type], "dest-unreach")
+ self.assertEqual(icmpcodes[icmp.type][icmp.code],
+ "fragmentation-needed")
+ self.assertEqual(icmp.src, self.pg0.remote_ip4)
+ self.assertEqual(icmp.dst, self.pg1.remote_ip4)
+
+ self.vapi.sw_interface_set_mtu(self.pg1.sw_if_index, [2500, 0, 0, 0])
+ rx = self.send_and_expect(self.pg0, p_mtu * 65, self.pg1)
+
+ # Reset MTU for subsequent tests
+ self.vapi.sw_interface_set_mtu(self.pg1.sw_if_index, [9000, 0, 0, 0])
+
+
+class TestIPDirectedBroadcast(VppTestCase):
+ """ IPv4 Directed Broadcast """
+
+ def setUp(self):
+ super(TestIPDirectedBroadcast, self).setUp()
+
+ self.create_pg_interfaces(range(2))
+
+ for i in self.pg_interfaces:
+ i.admin_up()
+
+ def tearDown(self):
+ super(TestIPDirectedBroadcast, self).tearDown()
+ for i in self.pg_interfaces:
+ i.admin_down()
+
+ def test_ip_input(self):
+ """ IP Directed Broadcast """
+
+ #
+ # set the directed broadcast on pg0 first, then config IP4 addresses
+ # for pg1 directed broadcast is always disabled
+ self.vapi.sw_interface_set_ip_directed_broadcast(
+ self.pg0.sw_if_index, 1)
+
+ p0 = (Ether(src=self.pg1.remote_mac,
+ dst=self.pg1.local_mac) /
+ IP(src="1.1.1.1",
+ dst=self.pg0._local_ip4_bcast) /
+ UDP(sport=1234, dport=1234) /
+ Raw('\xa5' * 2000))
+ p1 = (Ether(src=self.pg0.remote_mac,
+ dst=self.pg0.local_mac) /
+ IP(src="1.1.1.1",
+ dst=self.pg1._local_ip4_bcast) /
+ UDP(sport=1234, dport=1234) /
+ Raw('\xa5' * 2000))
+
+ self.pg0.config_ip4()
+ self.pg0.resolve_arp()
+ self.pg1.config_ip4()
+ self.pg1.resolve_arp()
+
+ #
+ # test packet is L2 broadcast
+ #
+ rx = self.send_and_expect(self.pg1, p0 * 65, self.pg0)
+ self.assertTrue(rx[0][Ether].dst, "ff:ff:ff:ff:ff:ff")
+
+ self.send_and_assert_no_replies(self.pg0, p1 * 65,
+ "directed broadcast disabled")
+
+ #
+ # toggle directed broadcast on pg0
+ #
+ self.vapi.sw_interface_set_ip_directed_broadcast(
+ self.pg0.sw_if_index, 0)
+ self.send_and_assert_no_replies(self.pg1, p0 * 65,
+ "directed broadcast disabled")
+
+ self.vapi.sw_interface_set_ip_directed_broadcast(
+ self.pg0.sw_if_index, 1)
+ rx = self.send_and_expect(self.pg1, p0 * 65, self.pg0)
+
+ self.pg0.unconfig_ip4()
+ self.pg1.unconfig_ip4()
+
+
if __name__ == '__main__':
unittest.main(testRunner=VppTestRunner)
Code Review / vpp.git / blobdiff