VppMRoutePath, VppMplsIpBind, \
VppMplsTable, VppIpTable, FibPathType, find_route, \
VppIpInterfaceAddress, find_route_in_dump, find_mroute_in_dump
-from vpp_ip import VppIpPuntPolicer, VppIpPuntRedirect
+from vpp_ip import VppIpPuntPolicer, VppIpPuntRedirect, VppIpPathMtu
from vpp_sub_interface import VppSubInterface, VppDot1QSubint, VppDot1ADSubint
-from vpp_papi import VppEnum
+from vpp_papi import vpp_papi, VppEnum
from vpp_neighbor import VppNeighbor
from vpp_lo_interface import VppLoInterface
from vpp_policer import VppPolicer, PolicerAction
i.admin_down()
super(TestIPLoadBalance, self).tearDown()
- def send_and_expect_load_balancing(self, input, pkts, outputs):
- self.vapi.cli("clear trace")
- input.add_stream(pkts)
- self.pg_enable_capture(self.pg_interfaces)
- self.pg_start()
- rxs = []
- for oo in outputs:
- rx = oo._get_capture(1)
- self.assertNotEqual(0, len(rx))
- rxs.append(rx)
- return rxs
-
- 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 total_len(self, rxs):
n = 0
for rx in rxs:
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)
+ self.send_and_expect_only(self.pg0, port_ip_pkts, self.pg2)
#
# change the flow hash config back to defaults
# inject the packet on pg0 - rx only on via routes output interface
#
self.vapi.cli("clear trace")
- self.send_and_expect_one_itf(self.pg0, port_pkts, self.pg3)
+ self.send_and_expect_only(self.pg0, port_pkts, self.pg3)
#
# Add a LB route in the presence of a down link - expect no
UDP(sport=1234, dport=1234 + ii) /
Raw(b'\xa5' * 100))
- self.send_and_expect_one_itf(self.pg0, port_pkts, self.pg4)
+ self.send_and_expect_only(self.pg0, port_pkts, self.pg4)
# bring the link back up
self.pg3.link_up()
""" IPv4 Punt Police/Redirect """
def setUp(self):
- super(TestIPPunt, self).setUp()
- super(TestIPPunt, self).punt_setup()
+ super().setUp()
+ super().punt_setup()
def tearDown(self):
- super(TestIPPunt, self).punt_teardown()
- super(TestIPPunt, self).tearDown()
+ super().punt_teardown()
+ super().tearDown()
+
+ def test_ip_punt_api_validation(self):
+ """ IP punt API parameter validation """
+
+ nh_addr = self.pg1.remote_ip4
+ punt = {"rx_sw_if_index": self.pg0.sw_if_index,
+ "af": VppEnum.vl_api_address_family_t.ADDRESS_IP4,
+ "n_paths": 1000000,
+ "paths": []}
+
+ with self.assertRaises(vpp_papi.VPPIOError):
+ self.vapi.add_del_ip_punt_redirect_v2(punt=punt, is_add=True)
+
+ punt = {"rx_sw_if_index": self.pg0.sw_if_index,
+ "af": VppEnum.vl_api_address_family_t.ADDRESS_IP4,
+ "n_paths": 0,
+ "paths": []}
+
+ self.vapi.add_del_ip_punt_redirect_v2(punt=punt, is_add=True)
def test_ip_punt(self):
""" IP punt police and redirect """
class TestIPPuntHandoff(IPPuntSetup, VppTestCase):
""" IPv4 Punt Policer thread handoff """
- worker_config = "workers 2"
+ vpp_worker_count = 2
def setUp(self):
super(TestIPPuntHandoff, self).setUp()
UDP(sport=1234, dport=1234) /
Raw(b'\xa5' * 100))
- rx = self.send_and_expect(self.pg0, p_ttl * NUM_PKTS, self.pg0)
-
- rx = rx[0]
- icmp = rx[ICMP]
+ rxs = self.send_and_expect_some(self.pg0, p_ttl * NUM_PKTS, self.pg0)
- 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)
+ for rx in rxs:
+ 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
self.vapi.sw_interface_set_mtu(self.pg1.sw_if_index, [1500, 0, 0, 0])
- rx = self.send_and_expect(self.pg0, p_mtu * NUM_PKTS, self.pg0)
- rx = rx[0]
- icmp = rx[ICMP]
+ rxs = self.send_and_expect_some(self.pg0, p_mtu * NUM_PKTS, self.pg0)
- 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)
+ for rx in rxs:
+ 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 * NUM_PKTS, self.pg1)
self.assertTrue(pfx.query_vpp_config())
+class TestIPv4PathMTU(VppTestCase):
+ """ IPv4 Path MTU """
+
+ @classmethod
+ def setUpClass(cls):
+ super(TestIPv4PathMTU, cls).setUpClass()
+
+ cls.create_pg_interfaces(range(2))
+
+ # setup all interfaces
+ for i in cls.pg_interfaces:
+ i.admin_up()
+ i.config_ip4()
+ i.resolve_arp()
+
+ @classmethod
+ def tearDownClass(cls):
+ super(TestIPv4PathMTU, cls).tearDownClass()
+
+ def test_path_mtu(self):
+ """ Path MTU """
+
+ #
+ # The goal here is not to test that fragmentation works correctly,
+ # that's done elsewhere, the intent is to ensure that the Path MTU
+ # settings are honoured.
+ #
+ self.vapi.cli("adjacency counters enable")
+
+ # set the interface MTU to a reasonable value
+ self.vapi.sw_interface_set_mtu(self.pg1.sw_if_index,
+ [1800, 0, 0, 0])
+
+ self.pg1.generate_remote_hosts(4)
+
+ p_2k = (Ether(dst=self.pg0.local_mac,
+ src=self.pg0.remote_mac) /
+ IP(src=self.pg0.remote_ip4,
+ dst=self.pg1.remote_ip4) /
+ UDP(sport=1234, dport=5678) /
+ Raw(b'0xa' * 640))
+ p_1k = (Ether(dst=self.pg0.local_mac,
+ src=self.pg0.remote_mac) /
+ IP(src=self.pg0.remote_ip4,
+ dst=self.pg1.remote_ip4) /
+ UDP(sport=1234, dport=5678) /
+ Raw(b'0xa' * 320))
+
+ nbr = VppNeighbor(self,
+ self.pg1.sw_if_index,
+ self.pg1.remote_mac,
+ self.pg1.remote_ip4).add_vpp_config()
+
+ # this is now the interface MTU frags
+ self.send_and_expect(self.pg0, [p_2k], self.pg1, n_rx=2)
+ self.send_and_expect(self.pg0, [p_1k], self.pg1)
+
+ # drop the path MTU for this neighbour to below the interface MTU
+ # expect more frags
+ pmtu = VppIpPathMtu(self, self.pg1.remote_ip4, 900).add_vpp_config()
+
+ self.send_and_expect(self.pg0, [p_2k], self.pg1, n_rx=3)
+ self.send_and_expect(self.pg0, [p_1k], self.pg1, n_rx=2)
+
+ # print/format the adj delegate
+ self.logger.info(self.vapi.cli("sh adj 5"))
+
+ # increase the path MTU to more than the interface
+ # expect to use the interface MTU
+ pmtu.modify(8192)
+
+ self.send_and_expect(self.pg0, [p_2k], self.pg1, n_rx=2)
+ self.send_and_expect(self.pg0, [p_1k], self.pg1)
+
+ # go back to an MTU from the path
+ # wrap the call around mark-n-sweep to enusre updates clear stale
+ self.vapi.ip_path_mtu_replace_begin()
+ pmtu.modify(900)
+ self.vapi.ip_path_mtu_replace_end()
+
+ self.send_and_expect(self.pg0, [p_2k], self.pg1, n_rx=3)
+ self.send_and_expect(self.pg0, [p_1k], self.pg1, n_rx=2)
+
+ # raise the interface's MTU
+ # should still use that of the path
+ self.vapi.sw_interface_set_mtu(self.pg1.sw_if_index,
+ [2000, 0, 0, 0])
+ self.send_and_expect(self.pg0, [p_2k], self.pg1, n_rx=3)
+ self.send_and_expect(self.pg0, [p_1k], self.pg1, n_rx=2)
+
+ # set path high and interface low
+ pmtu.modify(2000)
+ self.vapi.sw_interface_set_mtu(self.pg1.sw_if_index,
+ [900, 0, 0, 0])
+ self.send_and_expect(self.pg0, [p_2k], self.pg1, n_rx=3)
+ self.send_and_expect(self.pg0, [p_1k], self.pg1, n_rx=2)
+
+ # remove the path MTU using the mark-n-sweep semantics
+ self.vapi.sw_interface_set_mtu(self.pg1.sw_if_index,
+ [1800, 0, 0, 0])
+ self.vapi.ip_path_mtu_replace_begin()
+ self.vapi.ip_path_mtu_replace_end()
+
+ self.send_and_expect(self.pg0, [p_2k], self.pg1, n_rx=2)
+ self.send_and_expect(self.pg0, [p_1k], self.pg1)
+
+ #
+ # set path MTU for a neighbour that doesn't exist, yet
+ #
+ pmtu2 = VppIpPathMtu(self,
+ self.pg1.remote_hosts[2].ip4,
+ 900).add_vpp_config()
+
+ p_2k = (Ether(dst=self.pg0.local_mac,
+ src=self.pg0.remote_mac) /
+ IP(src=self.pg0.remote_ip4,
+ dst=self.pg1.remote_hosts[2].ip4) /
+ UDP(sport=1234, dport=5678) /
+ Raw(b'0xa' * 640))
+ p_1k = (Ether(dst=self.pg0.local_mac,
+ src=self.pg0.remote_mac) /
+ IP(src=self.pg0.remote_ip4,
+ dst=self.pg1.remote_hosts[2].ip4) /
+ UDP(sport=1234, dport=5678) /
+ Raw(b'0xa' * 320))
+
+ nbr2 = VppNeighbor(self,
+ self.pg1.sw_if_index,
+ self.pg1.remote_hosts[2].mac,
+ self.pg1.remote_hosts[2].ip4).add_vpp_config()
+
+ # should frag to the path MTU
+ self.send_and_expect(self.pg0, [p_2k], self.pg1, n_rx=3)
+ self.send_and_expect(self.pg0, [p_1k], self.pg1, n_rx=2)
+
+ # remove and re-add the neighbour
+ nbr2.remove_vpp_config()
+ nbr2.add_vpp_config()
+
+ # should frag to the path MTU
+ self.send_and_expect(self.pg0, [p_2k], self.pg1, n_rx=3)
+ self.send_and_expect(self.pg0, [p_1k], self.pg1, n_rx=2)
+
+ #
+ # set PMTUs for many peers
+ #
+ N_HOSTS = 16
+ self.pg1.generate_remote_hosts(16)
+ self.pg1.configure_ipv4_neighbors()
+
+ for h in range(N_HOSTS):
+ pmtu = VppIpPathMtu(self, self.pg1.remote_hosts[h].ip4, 900)
+ pmtu.add_vpp_config()
+ self.assertTrue(pmtu.query_vpp_config())
+
+ self.logger.info(self.vapi.cli("sh ip pmtu"))
+ dump = list(self.vapi.vpp.details_iter(self.vapi.ip_path_mtu_get))
+ self.assertEqual(N_HOSTS, len(dump))
+
+ for h in range(N_HOSTS):
+ p_2k[IP].dst = self.pg1.remote_hosts[h].ip4
+ p_1k[IP].dst = self.pg1.remote_hosts[h].ip4
+
+ # should frag to the path MTU
+ self.send_and_expect(self.pg0, [p_2k], self.pg1, n_rx=3)
+ self.send_and_expect(self.pg0, [p_1k], self.pg1, n_rx=2)
+
+
+class TestIPv4ItfRebind(VppTestCase):
+ """ IPv4 Interface Bind w/ attached routes """
+
+ def setUp(self):
+ super(TestIPv4ItfRebind, self).setUp()
+
+ self.create_pg_interfaces(range(3))
+
+ def tearDown(self):
+ super(TestIPv4ItfRebind, self).tearDown()
+
+ def test_rebind(self):
+ """ Import to no import """
+
+ TABLE_ID = 1
+ tbl = VppIpTable(self, TABLE_ID).add_vpp_config()
+ self.pg1.set_table_ip4(TABLE_ID)
+
+ for i in self.pg_interfaces:
+ i.admin_up()
+ i.config_ip4()
+ i.resolve_arp()
+
+ # add an attached route via an pg0
+ # in a different table. this prefix should import
+ rt = VppIpRoute(self, self.pg0.local_ip4, 24,
+ [VppRoutePath("0.0.0.0",
+ self.pg0.sw_if_index)],
+ table_id=TABLE_ID).add_vpp_config()
+
+ p = (Ether(dst=self.pg1.local_mac,
+ src=self.pg1.remote_mac) /
+ IP(src=self.pg1.remote_ip4,
+ dst=self.pg0.remote_ip4) /
+ UDP(sport=1234, dport=5678) /
+ Raw(b'0xa' * 640))
+
+ rx = self.send_and_expect(self.pg1, [p], self.pg0)
+ self.assertFalse(rx[0].haslayer(ARP))
+
+ # then bind pg0 to a new table
+ # so the prefix no longer imports
+ self.pg0.unconfig_ip4()
+ self.pg0.set_table_ip4(TABLE_ID)
+ self.pg0.config_ip4()
+ self.pg0.resolve_arp()
+
+ rx = self.send_and_expect(self.pg1, [p], self.pg0)
+ self.assertFalse(rx[0].haslayer(ARP))
+
+ # revert back to imported
+ self.pg0.unconfig_ip4()
+ self.pg0.set_table_ip4(0)
+ self.pg0.config_ip4()
+ self.pg0.resolve_arp()
+
+ rx = self.send_and_expect(self.pg1, [p], self.pg0)
+ self.assertFalse(rx[0].haslayer(ARP))
+
+ # cleanup
+ for i in self.pg_interfaces:
+ i.unconfig_ip4()
+ i.set_table_ip4(0)
+ i.admin_down()
+
+ rt.remove_vpp_config()
+ tbl.remove_vpp_config()
+
+ def test_delete(self):
+ """ Swap import tables """
+
+ TABLE_ID1 = 1
+ tbl1_4 = VppIpTable(self, TABLE_ID1).add_vpp_config()
+ tbl1_6 = VppIpTable(self, TABLE_ID1, True).add_vpp_config()
+ TABLE_ID2 = 2
+ tbl2_4 = VppIpTable(self, TABLE_ID2).add_vpp_config()
+ tbl2_6 = VppIpTable(self, TABLE_ID2, True).add_vpp_config()
+
+ # table mappings
+ self.pg1.set_table_ip4(TABLE_ID1)
+ self.pg1.set_table_ip6(TABLE_ID1)
+ self.pg2.set_table_ip4(TABLE_ID2)
+ self.pg2.set_table_ip6(TABLE_ID2)
+
+ for i in self.pg_interfaces:
+ i.admin_up()
+ i.config_ip4()
+ i.resolve_arp()
+
+ # add an attached route in the default table via pg0
+ # this should import to table 1
+ rt4 = VppIpRoute(self, self.pg1.local_ip4, 24,
+ [VppRoutePath("0.0.0.0",
+ self.pg1.sw_if_index)]).add_vpp_config()
+ rt6 = VppIpRoute(self, self.pg1.local_ip6, 64,
+ [VppRoutePath("0.0.0.0",
+ self.pg1.sw_if_index)]).add_vpp_config()
+
+ p1 = (Ether(dst=self.pg0.local_mac,
+ src=self.pg0.remote_mac) /
+ IP(src=self.pg1.remote_ip4,
+ dst=self.pg1.remote_ip4) /
+ UDP(sport=1234, dport=5678) /
+ Raw(b'0xa' * 640))
+
+ # inject into table 0
+ rx = self.send_and_expect(self.pg0, [p1], self.pg1)
+ self.assertFalse(rx[0].haslayer(ARP))
+
+ # swap the attached interface to table 2
+ self.pg1.unconfig_ip4()
+ self.pg1.unconfig_ip6()
+ self.pg1.set_table_ip4(TABLE_ID2)
+ self.pg1.set_table_ip6(TABLE_ID2)
+ self.pg1.config_ip4()
+ self.pg1.config_ip6()
+ self.pg1.resolve_arp()
+
+ # delete table 1
+ tbl1_4.flush()
+ tbl1_6.flush()
+ tbl1_4.remove_vpp_config()
+ tbl1_6.remove_vpp_config()
+
+ rx = self.send_and_expect(self.pg0, [p1], self.pg1)
+ self.assertFalse(rx[0].haslayer(ARP))
+
+ for i in self.pg_interfaces:
+ i.unconfig_ip4()
+ i.unconfig_ip6()
+ i.set_table_ip4(0)
+ i.set_table_ip6(0)
+ i.admin_down()
+
+
if __name__ == '__main__':
unittest.main(testRunner=VppTestRunner)
Code Review / vpp.git / blobdiff