X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=test%2Ftest_ip4.py;h=9ec7f4e812973f6f9ae6248d11740a9e7a6b56c2;hb=609e1210c;hp=83129e2462d86ada7c0cffa66ae22f34c3f22374;hpb=d723161e038d00e59766aa67a6a0dcc350227e4b;p=vpp.git diff --git a/test/test_ip4.py b/test/test_ip4.py index 83129e2462d..9ec7f4e8129 100644 --- a/test/test_ip4.py +++ b/test/test_ip4.py @@ -1,4 +1,5 @@ #!/usr/bin/env python +import binascii import random import socket import unittest @@ -7,7 +8,7 @@ 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, \ - VppMplsTable, VppIpTable + VppMplsTable, VppIpTable, VppIpAddress from scapy.packet import Raw from scapy.layers.l2 import Ether, Dot1Q, ARP @@ -36,7 +37,6 @@ class TestIPv4(VppTestCase): :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() @@ -55,8 +55,7 @@ class TestIPv4(VppTestCase): 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) @@ -103,34 +102,52 @@ class TestIPv4(VppTestCase): (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) @@ -183,15 +200,15 @@ class TestIPv4(VppTestCase): 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) @@ -205,6 +222,66 @@ class TestIPv4(VppTestCase): 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 @@ -226,9 +303,8 @@ class TestIPv4FibCrud(VppTestCase): :return list: added ips with 32 prefix """ added_ips = [] - dest_addr = int(socket.inet_pton(socket.AF_INET, - start_dest_addr).encode('hex'), - 16) + dest_addr = int(binascii.hexlify(socket.inet_pton(socket.AF_INET, + start_dest_addr)), 16) dest_addr_len = 32 n_next_hop_addr = socket.inet_pton(socket.AF_INET, next_hop_addr) for _ in range(count): @@ -242,9 +318,8 @@ class TestIPv4FibCrud(VppTestCase): def unconfig_fib_many_to_one(self, start_dest_addr, next_hop_addr, count): removed_ips = [] - dest_addr = int(socket.inet_pton(socket.AF_INET, - start_dest_addr).encode('hex'), - 16) + dest_addr = int(binascii.hexlify(socket.inet_pton(socket.AF_INET, + start_dest_addr)), 16) dest_addr_len = 32 n_next_hop_addr = socket.inet_pton(socket.AF_INET, next_hop_addr) for _ in range(count): @@ -476,7 +551,7 @@ class TestIPNull(VppTestCase): super(TestIPNull, self).setUp() # create 2 pg interfaces - self.create_pg_interfaces(range(1)) + self.create_pg_interfaces(range(2)) for i in self.pg_interfaces: i.admin_up() @@ -548,6 +623,32 @@ class TestIPNull(VppTestCase): self.assertEqual(icmp.src, self.pg0.remote_ip4) self.assertEqual(icmp.dst, "10.0.0.2") + def test_ip_drop(self): + """ IP Drop Routes """ + + p = (Ether(src=self.pg0.remote_mac, + dst=self.pg0.local_mac) / + IP(src=self.pg0.remote_ip4, dst="1.1.1.1") / + UDP(sport=1234, dport=1234) / + Raw('\xa5' * 100)) + + r1 = VppIpRoute(self, "1.1.1.0", 24, + [VppRoutePath(self.pg1.remote_ip4, + self.pg1.sw_if_index)]) + r1.add_vpp_config() + + rx = self.send_and_expect(self.pg0, p * 65, self.pg1) + + # + # insert a more specific as a drop + # + r2 = VppIpRoute(self, "1.1.1.1", 32, [], is_drop=1) + r2.add_vpp_config() + + self.send_and_assert_no_replies(self.pg0, p * 65, "Drop Route") + r2.remove_vpp_config() + rx = self.send_and_expect(self.pg0, p * 65, self.pg1) + class TestIPDisabled(VppTestCase): """ IPv4 disabled """ @@ -993,7 +1094,7 @@ class TestIPPunt(VppTestCase): def setUp(self): super(TestIPPunt, self).setUp() - self.create_pg_interfaces(range(2)) + self.create_pg_interfaces(range(4)) for i in self.pg_interfaces: i.admin_up() @@ -1020,8 +1121,7 @@ class TestIPPunt(VppTestCase): # # Configure a punt redirect via pg1. # - nh_addr = socket.inet_pton(socket.AF_INET, - self.pg1.remote_ip4) + nh_addr = VppIpAddress(self.pg1.remote_ip4).encode() self.vapi.ip_punt_redirect(self.pg0.sw_if_index, self.pg1.sw_if_index, nh_addr) @@ -1045,8 +1145,8 @@ class TestIPPunt(VppTestCase): # 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)) + self.assertGreater(len(rx), 0) + self.assertLess(len(rx), len(pkts)) # # remove the poilcer. back to full rx @@ -1079,6 +1179,40 @@ class TestIPPunt(VppTestCase): nh_addr, is_add=0) + def test_ip_punt_dump(self): + """ IP4 punt redirect dump""" + + # + # Configure a punt redirects + # + nh_address = VppIpAddress(self.pg3.remote_ip4).encode() + self.vapi.ip_punt_redirect(self.pg0.sw_if_index, + self.pg3.sw_if_index, + nh_address) + self.vapi.ip_punt_redirect(self.pg1.sw_if_index, + self.pg3.sw_if_index, + nh_address) + self.vapi.ip_punt_redirect(self.pg2.sw_if_index, + self.pg3.sw_if_index, + VppIpAddress('0.0.0.0').encode()) + + # + # Dump pg0 punt redirects + # + punts = self.vapi.ip_punt_redirect_dump(self.pg0.sw_if_index) + for p in punts: + self.assertEqual(p.punt.rx_sw_if_index, self.pg0.sw_if_index) + + # + # Dump punt redirects for all interfaces + # + punts = self.vapi.ip_punt_redirect_dump(0xffffffff) + self.assertEqual(len(punts), 3) + for p in punts: + self.assertEqual(p.punt.tx_sw_if_index, self.pg3.sw_if_index) + self.assertNotEqual(punts[1].punt.nh.un.ip4, self.pg3.remote_ip4) + self.assertEqual(punts[2].punt.nh.un.ip4.address, '\x00'*4) + class TestIPDeag(VppTestCase): """ IPv4 Deaggregate Routes """ @@ -1170,6 +1304,24 @@ class TestIPDeag(VppTestCase): route_in_src.add_vpp_config() self.send_and_expect(self.pg0, pkts_src, self.pg2) + # + # loop in the lookup DP + # + route_loop = VppIpRoute(self, "2.2.2.3", 32, + [VppRoutePath("0.0.0.0", + 0xffffffff, + nh_table_id=0)]) + route_loop.add_vpp_config() + + p_l = (Ether(src=self.pg0.remote_mac, + dst=self.pg0.local_mac) / + IP(src="2.2.2.4", dst="2.2.2.3") / + TCP(sport=1234, dport=1234) / + Raw('\xa5' * 100)) + + self.send_and_assert_no_replies(self.pg0, p_l * 257, + "IP lookup loop") + class TestIPInput(VppTestCase): """ IPv4 Input Exceptions """ @@ -1316,5 +1468,173 @@ class TestIPInput(VppTestCase): # 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() + + +class TestIPLPM(VppTestCase): + """ IPv4 longest Prefix Match """ + + def setUp(self): + super(TestIPLPM, self).setUp() + + self.create_pg_interfaces(range(4)) + + for i in self.pg_interfaces: + i.admin_up() + i.config_ip4() + i.resolve_arp() + + def tearDown(self): + super(TestIPLPM, self).tearDown() + for i in self.pg_interfaces: + i.admin_down() + i.unconfig_ip4() + + def test_ip_lpm(self): + """ IP longest Prefix Match """ + + s_24 = VppIpRoute(self, "10.1.2.0", 24, + [VppRoutePath(self.pg1.remote_ip4, + self.pg1.sw_if_index)]) + s_24.add_vpp_config() + s_8 = VppIpRoute(self, "10.0.0.0", 8, + [VppRoutePath(self.pg2.remote_ip4, + self.pg2.sw_if_index)]) + s_8.add_vpp_config() + + p_8 = (Ether(src=self.pg0.remote_mac, + dst=self.pg0.local_mac) / + IP(src="1.1.1.1", + dst="10.1.1.1") / + UDP(sport=1234, dport=1234) / + Raw('\xa5' * 2000)) + p_24 = (Ether(src=self.pg0.remote_mac, + dst=self.pg0.local_mac) / + IP(src="1.1.1.1", + dst="10.1.2.1") / + UDP(sport=1234, dport=1234) / + Raw('\xa5' * 2000)) + + self.logger.info(self.vapi.cli("sh ip fib mtrie")) + rx = self.send_and_expect(self.pg0, p_8 * 65, self.pg2) + rx = self.send_and_expect(self.pg0, p_24 * 65, self.pg1) + + +class TestIPv4Frag(VppTestCase): + """ IPv4 fragmentation """ + + @classmethod + def setUpClass(cls): + super(TestIPv4Frag, cls).setUpClass() + + cls.create_pg_interfaces([0, 1]) + cls.src_if = cls.pg0 + cls.dst_if = cls.pg1 + + # setup all interfaces + for i in cls.pg_interfaces: + i.admin_up() + i.config_ip4() + i.resolve_arp() + + def test_frag_large_packets(self): + """ Fragmentation of large packets """ + + p = (Ether(dst=self.src_if.local_mac, src=self.src_if.remote_mac) / + IP(src=self.src_if.remote_ip4, dst=self.dst_if.remote_ip4) / + UDP(sport=1234, dport=5678) / Raw()) + self.extend_packet(p, 6000, "abcde") + saved_payload = p[Raw].load + + # Force fragmentation by setting MTU of output interface + # lower than packet size + self.vapi.sw_interface_set_mtu(self.dst_if.sw_if_index, + [5000, 0, 0, 0]) + + self.pg_enable_capture() + self.src_if.add_stream(p) + self.pg_start() + + # Expecting 3 fragments because size of created fragments currently + # cannot be larger then VPP buffer size (which is 2048) + packets = self.dst_if.get_capture(3) + + # Assume VPP sends the fragments in order + payload = '' + for p in packets: + payload_offset = p.frag * 8 + if payload_offset > 0: + payload_offset -= 8 # UDP header is not in payload + self.assert_equal(payload_offset, len(payload)) + payload += p[Raw].load + self.assert_equal(payload, saved_payload, "payload") + + if __name__ == '__main__': unittest.main(testRunner=VppTestRunner)