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
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
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)
rx = oo._get_capture(1)
self.assertNotEqual(0, len(rx))
+ def send_and_expect_one_itf(self, input, pkts, itf):
+ input.add_stream(pkts)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+ rx = itf.get_capture(len(pkts))
+
def test_ip_load_balance(self):
""" IP Load-Balancing """
self.send_and_expect_load_balancing(self.pg0, src_mpls_pkts,
[self.pg1, self.pg2])
- self.pg0.add_stream(port_ip_pkts)
- self.pg_enable_capture(self.pg_interfaces)
- self.pg_start()
-
- rx = self.pg2.get_capture(len(port_ip_pkts))
+ self.send_and_expect_one_itf(self.pg0, port_ip_pkts, self.pg2)
#
# change the flow hash config back to defaults
[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) /
+ IP(dst="1.1.1.2", src="20.0.0.2") /
+ UDP(sport=1234, dport=1234 + ii) /
+ Raw('\xa5' * 100)))
+
+ route_10_0_0_3 = VppIpRoute(self, "10.0.0.3", 32,
+ [VppRoutePath(self.pg3.remote_ip4,
+ self.pg3.sw_if_index)])
+ route_10_0_0_3.add_vpp_config()
+
+ route_1_1_1_2 = VppIpRoute(self, "1.1.1.2", 32,
+ [VppRoutePath("10.0.0.3", 0xffffffff)])
+ route_1_1_1_2.add_vpp_config()
+
+ #
+ # inject the packet on pg0 - 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 TestIPVlan0(VppTestCase):
+ """ IPv4 VLAN-0 """
+
+ def setUp(self):
+ super(TestIPVlan0, self).setUp()
+
+ self.create_pg_interfaces(range(2))
+ mpls_tbl = VppMplsTable(self, 0)
+ mpls_tbl.add_vpp_config()
+
+ for i in self.pg_interfaces:
+ i.admin_up()
+ i.config_ip4()
+ i.resolve_arp()
+ i.enable_mpls()
+
+ def tearDown(self):
+ for i in self.pg_interfaces:
+ i.disable_mpls()
+ i.unconfig_ip4()
+ i.admin_down()
+ super(TestIPVlan0, self).tearDown()
+
+ def 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))
+
+ def test_ip_vlan_0(self):
+ """ IP VLAN-0 """
+
+ pkts = (Ether(src=self.pg0.remote_mac,
+ dst=self.pg0.local_mac) /
+ Dot1Q(vlan=0) /
+ IP(dst=self.pg1.remote_ip4,
+ src=self.pg0.remote_ip4) /
+ UDP(sport=1234, dport=1234) /
+ Raw('\xa5' * 100)) * 65
+
+ #
+ # Expect that packets sent on VLAN-0 are forwarded on the
+ # main interface.
+ #
+ self.send_and_expect(self.pg0, pkts, self.pg1)
+
+
+class TestIPPunt(VppTestCase):
+ """ IPv4 Punt Police/Redirect """
+
+ 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 send_and_expect(self, input, pkts, output):
+ self.vapi.cli("clear trace")
+ input.add_stream(pkts)
+ self.pg_enable_capture(self.pg_interfaces)
+ self.pg_start()
+ rx = output.get_capture(len(pkts))
+ return rx
+
+ def send_and_assert_no_replies(self, intf, pkts, remark):
+ self.vapi.cli("clear trace")
+ 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_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)
+
+
if __name__ == '__main__':
unittest.main(testRunner=VppTestRunner)
Code Review / vpp.git / blobdiff