summaryrefslogtreecommitdiffstats
path: root/src/plugins/acl
diff options
context:
space:
mode:
authorJon Loeliger <jdl@netgate.com>2017-01-31 14:03:33 -0600
committerDave Barach <openvpp@barachs.net>2017-02-02 17:31:37 +0000
commit7bc770ceb62ede18414b7bb5788692e32477e373 (patch)
treea0898e2e7b3b994c9edbc2442328545513849bec /src/plugins/acl
parent614e97d87b46853384cf0dcf1d59aaf9f4b2fa92 (diff)
Convert message macro S to accept a message pointer parameter;
Rather than blindly assume an unbound, fixed message parameter explicilty pass it as a paramter to the S() macro. Change-Id: Ieea1f1815cadd2eec7d9240408d69acdc3caa49a Signed-off-by: Jon Loeliger <jdl@netgate.com>
Diffstat (limited to 'src/plugins/acl')
-rw-r--r--src/plugins/acl/acl_test.c24
1 files changed, 12 insertions, 12 deletions
diff --git a/src/plugins/acl/acl_test.c b/src/plugins/acl/acl_test.c
index 04683a12636..70fd6959594 100644
--- a/src/plugins/acl/acl_test.c
+++ b/src/plugins/acl/acl_test.c
@@ -276,7 +276,7 @@ static int api_acl_plugin_get_version (vat_main_t * vam)
mp->client_index = vam->my_client_index;
/* send it... */
- S;
+ S(mp);
/* Wait for a reply... */
W;
@@ -298,7 +298,7 @@ static int api_macip_acl_interface_get (vat_main_t * vam)
mp->client_index = vam->my_client_index;
/* send it... */
- S;
+ S(mp);
/* Wait for a reply... */
W;
@@ -479,7 +479,7 @@ static int api_acl_add_replace (vat_main_t * vam)
mp->count = htonl(n_rules);
/* send it... */
- S;
+ S(mp);
/* Wait for a reply... */
W;
@@ -502,7 +502,7 @@ static int api_acl_del (vat_main_t * vam)
mp->acl_index = ntohl(acl_index);
/* send it... */
- S;
+ S(mp);
/* Wait for a reply... */
W;
@@ -525,7 +525,7 @@ static int api_macip_acl_del (vat_main_t * vam)
mp->acl_index = ntohl(acl_index);
/* send it... */
- S;
+ S(mp);
/* Wait for a reply... */
W;
@@ -592,7 +592,7 @@ static int api_acl_interface_add_del (vat_main_t * vam)
mp->is_input = is_input;
/* send it... */
- S;
+ S(mp);
/* Wait for a reply... */
W;
@@ -642,7 +642,7 @@ static int api_macip_acl_interface_add_del (vat_main_t * vam)
mp->is_add = is_add;
/* send it... */
- S;
+ S(mp);
/* Wait for a reply... */
W;
@@ -699,7 +699,7 @@ static int api_acl_interface_set_acl_list (vat_main_t * vam)
clib_memcpy(mp->acls, inacls, vec_len(inacls)*sizeof(u32));
/* send it... */
- S;
+ S(mp);
/* Wait for a reply... */
W;
@@ -728,7 +728,7 @@ static int api_acl_interface_list_dump (vat_main_t * vam)
mp->sw_if_index = ntohl (sw_if_index);
/* send it... */
- S;
+ S(mp);
/* Wait for a reply... */
W;
@@ -754,7 +754,7 @@ static int api_acl_dump (vat_main_t * vam)
mp->acl_index = ntohl (acl_index);
/* send it... */
- S;
+ S(mp);
/* Wait for a reply... */
W;
@@ -780,7 +780,7 @@ static int api_macip_acl_dump (vat_main_t * vam)
mp->acl_index = ntohl (acl_index);
/* send it... */
- S;
+ S(mp);
/* Wait for a reply... */
W;
@@ -912,7 +912,7 @@ static int api_macip_acl_add (vat_main_t * vam)
mp->count = htonl(n_rules);
/* send it... */
- S;
+ S(mp);
/* Wait for a reply... */
W;
='#n312'>312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694
#!/usr/bin/env python3

import ipaddress
import unittest

from framework import VppTestCase, VppTestRunner
from vpp_ip import DpoProto
from vpp_ip_route import VppIpRoute, VppRoutePath
from util import fragment_rfc791, fragment_rfc8200

import scapy.compat
from scapy.layers.l2 import Ether
from scapy.packet import Raw
from scapy.layers.inet import IP, UDP, ICMP, TCP, IPerror, UDPerror
from scapy.layers.inet6 import IPv6, ICMPv6TimeExceeded, ICMPv6PacketTooBig
from scapy.layers.inet6 import ICMPv6EchoRequest, ICMPv6EchoReply, IPerror6


class TestMAPBR(VppTestCase):
    """ MAP-T Test Cases """

    @classmethod
    def setUpClass(cls):
        super(TestMAPBR, cls).setUpClass()

    @classmethod
    def tearDownClass(cls):
        super(TestMAPBR, cls).tearDownClass()

    def setUp(self):
        super(TestMAPBR, self).setUp()

        #
        # Create 2 pg interfaces.
        # pg0 is IPv4
        # pg1 is IPv6
        #
        self.create_pg_interfaces(range(2))

        self.pg0.admin_up()
        self.pg0.config_ip4()
        self.pg1.generate_remote_hosts(20)
        self.pg1.configure_ipv4_neighbors()
        self.pg0.resolve_arp()

        self.pg1.admin_up()
        self.pg1.config_ip6()
        self.pg1.generate_remote_hosts(20)
        self.pg1.configure_ipv6_neighbors()

        #
        # BR configuration parameters used for all test.
        #
        self.ip4_prefix = '198.18.0.0/24'
        self.ip6_prefix = '2001:db8:f0::/48'
        self.ip6_src = '2001:db8:ffff:ff00::/64'
        self.ea_bits_len = 12
        self.psid_offset = 6
        self.psid_length = 4
        self.mtu = 1500
        self.tag = 'MAP-T BR'

        self.ipv4_internet_address = self.pg0.remote_ip4
        self.ipv4_map_address = "198.18.0.12"
        self.ipv4_udp_or_tcp_internet_port = 65000
        self.ipv4_udp_or_tcp_map_port = 16606

        self.ipv6_cpe_address = "2001:db8:f0:c30:0:c612:c:3"      # 198.18.0.12
        self.ipv6_spoof_address = "2001:db8:f0:c30:0:c612:1c:3"   # 198.18.0.28
        self.ipv6_spoof_prefix = "2001:db8:f0:c30:0:a00:c:3"      # 10.0.0.12
        self.ipv6_spoof_psid = "2001:db8:f0:c30:0:c612:c:4"       # 4
        self.ipv6_spoof_subnet = "2001:db8:f1:c30:0:c612:c:3"     # f1

        self.ipv6_udp_or_tcp_internet_port = 65000
        self.ipv6_udp_or_tcp_map_port = 16606
        self.ipv6_udp_or_tcp_spoof_port = 16862

        self.ipv6_map_address = (
            "2001:db8:ffff:ff00:ac:1001:200:0")         # 176.16.1.2
        self.ipv6_map_same_rule_diff_addr = (
            "2001:db8:ffff:ff00:c6:1200:1000:0")        # 198.18.0.16
        self.ipv6_map_same_rule_same_addr = (
            "2001:db8:ffff:ff00:c6:1200:c00:0")         # 198.18.0.12

        self.map_br_prefix = "2001:db8:f0::"
        self.map_br_prefix_len = 48
        self.psid_number = 3

        #
        # Add an IPv6 route to the MAP-BR.
        #
        map_route = VppIpRoute(self,
                               self.map_br_prefix,
                               self.map_br_prefix_len,
                               [VppRoutePath(self.pg1.remote_ip6,
                                             self.pg1.sw_if_index)])
        map_route.add_vpp_config()

        #
        # Add a MAP BR domain that maps from pg0 to pg1.
        #
        self.vapi.map_add_domain(ip4_prefix=self.ip4_prefix,
                                 ip6_prefix=self.ip6_prefix,
                                 ip6_src=self.ip6_src,
                                 ea_bits_len=self.ea_bits_len,
                                 psid_offset=self.psid_offset,
                                 psid_length=self.psid_length,
                                 mtu=self.mtu,
                                 tag=self.tag)

        #
        # Set BR parameters.
        #
        self.vapi.map_param_set_fragmentation(inner=1, ignore_df=0)
        self.vapi.map_param_set_fragmentation(inner=0, ignore_df=0)
        self.vapi.map_param_set_icmp(ip4_err_relay_src=self.pg0.local_ip4)
        self.vapi.map_param_set_traffic_class(copy=1)

        #
        # Enable MAP-T on interfaces.
        #
        self.vapi.map_if_enable_disable(is_enable=1,
                                        sw_if_index=self.pg0.sw_if_index,
                                        is_translation=1)

        self.vapi.map_if_enable_disable(is_enable=1,
                                        sw_if_index=self.pg1.sw_if_index,
                                        is_translation=1)

        self.vapi.map_if_enable_disable(is_enable=1,
                                        sw_if_index=self.pg1.sw_if_index,
                                        is_translation=1)

    def tearDown(self):
        super(TestMAPBR, self).tearDown()
        for i in self.pg_interfaces:
            i.unconfig_ip4()
            i.unconfig_ip6()
            i.admin_down()

    def v4_address_check(self, pkt):
        self.assertEqual(pkt[IP].src, self.ipv4_map_address)
        self.assertEqual(pkt[IP].dst, self.ipv4_internet_address)

    def v4_port_check(self, pkt, proto):
        self.assertEqual(pkt[proto].sport, self.ipv4_udp_or_tcp_map_port)
        self.assertEqual(pkt[proto].dport, self.ipv4_udp_or_tcp_internet_port)

    def v6_address_check(self, pkt):
        self.assertEqual(pkt[IPv6].src, self.ipv6_map_address)
        self.assertEqual(pkt[IPv6].dst, self.ipv6_cpe_address)

    def v6_port_check(self, pkt, proto):
        self.assertEqual(pkt[proto].sport, self.ipv6_udp_or_tcp_internet_port)
        self.assertEqual(pkt[proto].dport, self.ipv6_udp_or_tcp_map_port)

    #
    # Normal translation of UDP packets v4 -> v6 direction
    # Send 128 frame size packet for IPv4/UDP.
    # Received packet should be translated into IPv6 packet with no
    # fragment header.
    #

    def test_map_t_udp_ip4_to_ip6(self):
        """ MAP-T UDP IPv4 -> IPv6 """

        eth = Ether(src=self.pg0.remote_mac,
                    dst=self.pg0.local_mac)
        ip = IP(src=self.pg0.remote_ip4,
                dst=self.ipv4_map_address,
                tos=0)
        udp = UDP(sport=self.ipv4_udp_or_tcp_internet_port,
                  dport=self.ipv4_udp_or_tcp_map_port)
        payload = "a" * 82
        tx_pkt = eth / ip / udp / payload

        self.pg_send(self.pg0, tx_pkt * 1)

        rx_pkts = self.pg1.get_capture(1)
        rx_pkt = rx_pkts[0]

        self.v6_address_check(rx_pkt)
        self.v6_port_check(rx_pkt, UDP)
        self.assertEqual(rx_pkt[IPv6].tc, 0)    # IPv4 ToS passed to v6 TC
        self.assertEqual(rx_pkt[IPv6].nh, IPv6(nh="UDP").nh)

    #
    # Normal translation of TCP packets v4 -> v6 direction.
    # Send 128 frame size packet for IPv4/TCP.
    # Received packet should be translated into IPv6 packet with no
    # fragment header.
    #

    def test_map_t_tcp_ip4_to_ip6(self):
        """ MAP-T TCP IPv4 -> IPv6 """

        eth = Ether(src=self.pg0.remote_mac,
                    dst=self.pg0.local_mac)
        ip = IP(src=self.pg0.remote_ip4,
                dst=self.ipv4_map_address,
                tos=0)
        tcp = TCP(sport=self.ipv4_udp_or_tcp_internet_port,
                  dport=self.ipv4_udp_or_tcp_map_port)
        payload = "a" * 82
        tx_pkt = eth / ip / tcp / payload

        self.pg_send(self.pg0, tx_pkt * 1)

        rx_pkts = self.pg1.get_capture(1)
        rx_pkt = rx_pkts[0]

        self.v6_address_check(rx_pkt)
        self.v6_port_check(rx_pkt, TCP)
        self.assertEqual(rx_pkt[IPv6].tc, 0)    # IPv4 ToS passed to v6 TC
        self.assertEqual(rx_pkt[IPv6].nh, IPv6(nh="TCP").nh)

    #
    # Normal translation of UDP packets v6 -> v4 direction
    # Send 128 frame size packet for IPv6/UDP.
    # Received packet should be translated into an IPv4 packet with DF=1.
    #

    def test_map_t_udp_ip6_to_ip4(self):
        """ MAP-T UDP IPv6 -> IPv4 """

        eth = Ether(src=self.pg1.remote_mac,
                    dst=self.pg1.local_mac)
        ip = IPv6(src=self.ipv6_cpe_address,
                  dst=self.ipv6_map_address)
        udp = UDP(sport=self.ipv6_udp_or_tcp_map_port,
                  dport=self.ipv6_udp_or_tcp_internet_port)
        payload = "a" * 82
        tx_pkt = eth / ip / udp / payload

        self.pg_send(self.pg1, tx_pkt * 1)

        rx_pkts = self.pg0.get_capture(1)
        rx_pkt = rx_pkts[0]

        self.v4_address_check(rx_pkt)
        self.v4_port_check(rx_pkt, UDP)
        self.assertEqual(rx_pkt[IP].proto, IP(proto="udp").proto)
        self.assertEqual(rx_pkt[IP].tos, 0)    # IPv6 TC passed to v4 ToS
        df_bit = IP(flags="DF").flags
        self.assertNotEqual(rx_pkt[IP].flags & df_bit, df_bit)

    #
    # Normal translation of TCP packets v6 -> v4 direction
    # Send 128 frame size packet for IPv6/TCP.
    # Received packet should be translated into an IPv4 packet with DF=1
    #

    def test_map_t_tcp_ip6_to_ip4(self):
        """ MAP-T TCP IPv6 -> IPv4 """

        eth = Ether(src=self.pg1.remote_mac,
                    dst=self.pg1.local_mac)
        ip = IPv6(src=self.ipv6_cpe_address,
                  dst=self.ipv6_map_address)
        tcp = TCP(sport=self.ipv6_udp_or_tcp_map_port,
                  dport=self.ipv6_udp_or_tcp_internet_port)
        payload = "a" * 82
        tx_pkt = eth / ip / tcp / payload

        self.pg_send(self.pg1, tx_pkt * 1)

        rx_pkts = self.pg0.get_capture(1)
        rx_pkt = rx_pkts[0]

        self.v4_address_check(rx_pkt)
        self.v4_port_check(rx_pkt, TCP)
        self.assertEqual(rx_pkt[IP].proto, IP(proto="tcp").proto)
        self.assertEqual(rx_pkt[IP].tos, 0)    # IPv6 TC passed to v4 ToS
        df_bit = IP(flags="DF").flags
        self.assertNotEqual(rx_pkt[IP].flags & df_bit, df_bit)

    #
    # Translation of ICMP Echo Request v4 -> v6 direction
    # Received packet should be translated into an IPv6 Echo Request.
    #

    def test_map_t_echo_request_ip4_to_ip6(self):
        """ MAP-T echo request IPv4 -> IPv6 """

        eth = Ether(src=self.pg1.remote_mac,
                    dst=self.pg1.local_mac)
        ip = IP(src=self.pg0.remote_ip4,
                dst=self.ipv4_map_address)
        icmp = ICMP(type="echo-request",
                    id=self.ipv6_udp_or_tcp_map_port)
        payload = "H" * 10
        tx_pkt = eth / ip / icmp / payload

        self.pg_send(self.pg0, tx_pkt * 1)

        rx_pkts = self.pg1.get_capture(1)
        rx_pkt = rx_pkts[0]

        self.assertEqual(rx_pkt[IPv6].nh, IPv6(nh="ICMPv6").nh)
        self.assertEqual(rx_pkt[ICMPv6EchoRequest].type,
                         ICMPv6EchoRequest(type="Echo Request").type)
        self.assertEqual(rx_pkt[ICMPv6EchoRequest].code, 0)
        self.assertEqual(rx_pkt[ICMPv6EchoRequest].id,
                         self.ipv6_udp_or_tcp_map_port)

    #
    # Translation of ICMP Echo Reply v4 -> v6 direction
    # Received packet should be translated into an IPv6 Echo Reply.
    #

    def test_map_t_echo_reply_ip4_to_ip6(self):
        """ MAP-T echo reply IPv4 -> IPv6 """

        eth = Ether(src=self.pg1.remote_mac,
                    dst=self.pg1.local_mac)
        ip = IP(src=self.pg0.remote_ip4,
                dst=self.ipv4_map_address)
        icmp = ICMP(type="echo-reply",
                    id=self.ipv6_udp_or_tcp_map_port)
        payload = "H" * 10
        tx_pkt = eth / ip / icmp / payload

        self.pg_send(self.pg0, tx_pkt * 1)

        rx_pkts = self.pg1.get_capture(1)
        rx_pkt = rx_pkts[0]

        self.assertEqual(rx_pkt[IPv6].nh, IPv6(nh="ICMPv6").nh)
        self.assertEqual(rx_pkt[ICMPv6EchoReply].type,
                         ICMPv6EchoReply(type="Echo Reply").type)
        self.assertEqual(rx_pkt[ICMPv6EchoReply].code, 0)
        self.assertEqual(rx_pkt[ICMPv6EchoReply].id,
                         self.ipv6_udp_or_tcp_map_port)

    #
    # Translation of ICMP Time Exceeded v4 -> v6 direction
    # Received packet should be translated into an IPv6 Time Exceeded.
    #

    def test_map_t_time_exceeded_ip4_to_ip6(self):
        """ MAP-T time exceeded IPv4 -> IPv6 """

        eth = Ether(src=self.pg0.remote_mac,
                    dst=self.pg0.local_mac)
        ip = IP(src=self.pg0.remote_ip4,
                dst=self.ipv4_map_address)
        icmp = ICMP(type="time-exceeded", code="ttl-zero-during-transit")
        ip_inner = IP(dst=self.pg0.remote_ip4,
                      src=self.ipv4_map_address, ttl=1)
        udp_inner = UDP(sport=self.ipv4_udp_or_tcp_map_port,
                        dport=self.ipv4_udp_or_tcp_internet_port)
        payload = "H" * 10
        tx_pkt = eth / ip / icmp / ip_inner / udp_inner / payload

        self.pg_send(self.pg0, tx_pkt * 1)

        rx_pkts = self.pg1.get_capture(1)
        rx_pkt = rx_pkts[0]

        self.v6_address_check(rx_pkt)
        self.assertEqual(rx_pkt[IPv6].nh, IPv6(nh="ICMPv6").nh)
        self.assertEqual(rx_pkt[ICMPv6TimeExceeded].type,
                         ICMPv6TimeExceeded().type)
        self.assertEqual(rx_pkt[ICMPv6TimeExceeded].code,
                         ICMPv6TimeExceeded(
                            code="hop limit exceeded in transit").code)
        self.assertEqual(rx_pkt[ICMPv6TimeExceeded].hlim, tx_pkt[IP][1].ttl)
        self.assertTrue(rx_pkt.haslayer(IPerror6))
        self.assertTrue(rx_pkt.haslayer(UDPerror))
        self.assertEqual(rx_pkt[IPv6].src, rx_pkt[IPerror6].dst)
        self.assertEqual(rx_pkt[IPv6].dst, rx_pkt[IPerror6].src)
        self.assertEqual(rx_pkt[UDPerror].sport, self.ipv6_udp_or_tcp_map_port)
        self.assertEqual(rx_pkt[UDPerror].dport,
                         self.ipv6_udp_or_tcp_internet_port)

    #
    # Translation of ICMP Echo Request v6 -> v4 direction
    # Received packet should be translated into an IPv4 Echo Request.
    #

    def test_map_t_echo_request_ip6_to_ip4(self):
        """ MAP-T echo request IPv6 -> IPv4 """

        eth = Ether(src=self.pg1.remote_mac,
                    dst=self.pg1.local_mac)
        ip = IPv6(src=self.ipv6_cpe_address,
                  dst=self.ipv6_map_address)
        icmp = ICMPv6EchoRequest()
        icmp.id = self.ipv6_udp_or_tcp_map_port
        payload = "H" * 10
        tx_pkt = eth / ip / icmp / payload

        self.pg_send(self.pg1, tx_pkt * 1)

        rx_pkts = self.pg0.get_capture(1)
        rx_pkt = rx_pkts[0]

        self.assertEqual(rx_pkt[IP].proto, IP(proto="icmp").proto)
        self.assertEqual(rx_pkt[ICMP].type, ICMP(type="echo-request").type)
        self.assertEqual(rx_pkt[ICMP].code, 0)
        self.assertEqual(rx_pkt[ICMP].id, self.ipv6_udp_or_tcp_map_port)

    #
    # Translation of ICMP Echo Reply v6 -> v4 direction
    # Received packet should be translated into an IPv4 Echo Reply.
    #

    def test_map_t_echo_reply_ip6_to_ip4(self):
        """ MAP-T echo reply IPv6 -> IPv4 """

        eth = Ether(src=self.pg1.remote_mac,
                    dst=self.pg1.local_mac)
        ip = IPv6(src=self.ipv6_cpe_address,
                  dst=self.ipv6_map_address)
        icmp = ICMPv6EchoReply(id=self.ipv6_udp_or_tcp_map_port)
        payload = "H" * 10
        tx_pkt = eth / ip / icmp / payload

        self.pg_send(self.pg1, tx_pkt * 1)

        rx_pkts = self.pg0.get_capture(1)
        rx_pkt = rx_pkts[0]

        self.assertEqual(rx_pkt[IP].proto, IP(proto="icmp").proto)
        self.assertEqual(rx_pkt[ICMP].type, ICMP(type="echo-reply").type)
        self.assertEqual(rx_pkt[ICMP].code, 0)
        self.assertEqual(rx_pkt[ICMP].id, self.ipv6_udp_or_tcp_map_port)

    #
    # Translation of ICMP Packet Too Big v6 -> v4 direction
    # Received packet should be translated into an IPv4 Dest Unreachable.
    #

    def test_map_t_packet_too_big_ip6_to_ip4(self):
        """ MAP-T packet too big IPv6 -> IPv4 """

        eth = Ether(src=self.pg1.remote_mac,
                    dst=self.pg1.local_mac)
        ip = IPv6(src=self.ipv6_cpe_address,
                  dst=self.ipv6_map_address)
        icmp = ICMPv6PacketTooBig(mtu=1280)
        ip_inner = IPv6(src=self.ipv6_map_address,
                        dst=self.ipv6_cpe_address)
        udp_inner = UDP(sport=self.ipv6_udp_or_tcp_internet_port,
                        dport=self.ipv6_udp_or_tcp_map_port)
        payload = "H" * 10
        tx_pkt = eth / ip / icmp / ip_inner / udp_inner / payload

        self.pg_send(self.pg1, tx_pkt * 1)

        rx_pkts = self.pg0.get_capture(1)
        rx_pkt = rx_pkts[0]

        self.v4_address_check(rx_pkt)
        self.assertEqual(rx_pkt[IP].proto, IP(proto="icmp").proto)
        self.assertEqual(rx_pkt[ICMP].type, ICMP(type="dest-unreach").type)
        self.assertEqual(rx_pkt[ICMP].code,
                         ICMP(code="fragmentation-needed").code)
        self.assertEqual(rx_pkt[ICMP].nexthopmtu,
                         tx_pkt[ICMPv6PacketTooBig].mtu - 20)
        self.assertTrue(rx_pkt.haslayer(IPerror))
        self.assertTrue(rx_pkt.haslayer(UDPerror))
        self.assertEqual(rx_pkt[IP].src, rx_pkt[IPerror].dst)
        self.assertEqual(rx_pkt[IP].dst, rx_pkt[IPerror].src)
        self.assertEqual(rx_pkt[UDPerror].sport,
                         self.ipv4_udp_or_tcp_internet_port)
        self.assertEqual(rx_pkt[UDPerror].dport, self.ipv4_udp_or_tcp_map_port)

    #
    # Translation of ICMP Time Exceeded v6 -> v4 direction
    # Received packet should be translated into an IPv4 Time Exceeded.
    #

    def test_map_t_time_exceeded_ip6_to_ip4(self):
        """ MAP-T time exceeded IPv6 -> IPv4 """

        eth = Ether(src=self.pg1.remote_mac,
                    dst=self.pg1.local_mac)
        ip = IPv6(src=self.ipv6_cpe_address,
                  dst=self.ipv6_map_address)
        icmp = ICMPv6TimeExceeded()
        ip_inner = IPv6(src=self.ipv6_map_address,
                        dst=self.ipv6_cpe_address, hlim=1)
        udp_inner = UDP(sport=self.ipv6_udp_or_tcp_internet_port,
                        dport=self.ipv6_udp_or_tcp_map_port)
        payload = "H" * 10
        tx_pkt = eth / ip / icmp / ip_inner / udp_inner / payload

        self.pg_send(self.pg1, tx_pkt * 1)

        rx_pkts = self.pg0.get_capture(1)
        rx_pkt = rx_pkts[0]

        self.v4_address_check(rx_pkt)
        self.assertEqual(rx_pkt[IP].proto, IP(proto="icmp").proto)
        self.assertEqual(rx_pkt[ICMP].type, ICMP(type="time-exceeded").type)
        self.assertEqual(rx_pkt[ICMP].code,
                         ICMP(code="ttl-zero-during-transit").code)
        self.assertEqual(rx_pkt[ICMP].ttl, tx_pkt[IPv6][1].hlim)
        self.assertTrue(rx_pkt.haslayer(IPerror))
        self.assertTrue(rx_pkt.haslayer(UDPerror))
        self.assertEqual(rx_pkt[IP].src, rx_pkt[IPerror].dst)
        self.assertEqual(rx_pkt[IP].dst, rx_pkt[IPerror].src)
        self.assertEqual(rx_pkt[UDPerror].sport,
                         self.ipv4_udp_or_tcp_internet_port)
        self.assertEqual(rx_pkt[UDPerror].dport, self.ipv4_udp_or_tcp_map_port)

    #
    # Spoofed IPv4 Source Address v6 -> v4 direction
    # Send a packet with a wrong IPv4 address embedded in bits 72-103.
    # The BR should either drop the packet, or rewrite the spoofed
    # source IPv4 as the actual source IPv4 address.
    # The BR really should drop the packet.
    #

    def test_map_t_spoof_ipv4_src_addr_ip6_to_ip4(self):
        """ MAP-T spoof ipv4 src addr IPv6 -> IPv4 """

        eth = Ether(src=self.pg1.remote_mac,
                    dst=self.pg1.local_mac)
        ip = IPv6(src=self.ipv6_spoof_address,
                  dst=self.ipv6_map_address)
        udp = UDP(sport=self.ipv6_udp_or_tcp_map_port,
                  dport=self.ipv6_udp_or_tcp_internet_port)
        payload = "a" * 82
        tx_pkt = eth / ip / udp / payload

        self.pg_send(self.pg1, tx_pkt * 1)

        self.pg0.get_capture(0, timeout=1)
        self.pg0.assert_nothing_captured("Should drop IPv4 spoof address")

    #
    # Spoofed IPv4 Source Prefix v6 -> v4 direction
    # Send a packet with a wrong IPv4 prefix embedded in bits 72-103.
    # The BR should either drop the packet, or rewrite the source IPv4
    # to the prefix that matches the source IPv4 address.
    #

    def test_map_t_spoof_ipv4_src_prefix_ip6_to_ip4(self):
        """ MAP-T spoof ipv4 src prefix IPv6 -> IPv4 """

        eth = Ether(src=self.pg1.remote_mac,
                    dst=self.pg1.local_mac)
        ip = IPv6(src=self.ipv6_spoof_prefix,
                  dst=self.ipv6_map_address)
        udp = UDP(sport=self.ipv6_udp_or_tcp_map_port,
                  dport=self.ipv6_udp_or_tcp_internet_port)
        payload = "a" * 82
        tx_pkt = eth / ip / udp / payload

        self.pg_send(self.pg1, tx_pkt * 1)

        self.pg0.get_capture(0, timeout=1)
        self.pg0.assert_nothing_captured("Should drop IPv4 spoof prefix")

    #
    # Spoofed IPv6 PSID v6 -> v4 direction
    # Send a packet with a wrong IPv6 port PSID
    # The BR should drop the packet.
    #

    def test_map_t_spoof_psid_ip6_to_ip4(self):
        """ MAP-T spoof psid IPv6 -> IPv4 """

        eth = Ether(src=self.pg1.remote_mac,
                    dst=self.pg1.local_mac)
        ip = IPv6(src=self.ipv6_spoof_psid,
                  dst=self.ipv6_map_address)
        udp = UDP(sport=self.ipv6_udp_or_tcp_map_port,
                  dport=self.ipv6_udp_or_tcp_internet_port)
        payload = "a" * 82
        tx_pkt = eth / ip / udp / payload

        self.pg_send(self.pg1, tx_pkt * 1)

        self.pg0.get_capture(0, timeout=1)
        self.pg0.assert_nothing_captured("Should drop IPv6 spoof PSID")

    #
    # Spoofed IPv6 subnet field v6 -> v4 direction
    # Send a packet with a wrong IPv6 subnet as "2001:db8:f1"
    # The BR should drop the packet.
    #

    def test_map_t_spoof_subnet_ip6_to_ip4(self):
        """ MAP-T spoof subnet IPv6 -> IPv4 """

        eth = Ether(src=self.pg1.remote_mac,
                    dst=self.pg1.local_mac)
        ip = IPv6(src=self.ipv6_spoof_subnet,
                  dst=self.ipv6_map_address)
        udp = UDP(sport=self.ipv6_udp_or_tcp_map_port,
                  dport=self.ipv6_udp_or_tcp_internet_port)
        payload = "a" * 82
        tx_pkt = eth / ip / udp / payload

        self.pg_send(self.pg1, tx_pkt * 1)

        self.pg0.get_capture(0, timeout=1)
        self.pg0.assert_nothing_captured("Should drop IPv6 spoof subnet")

    #
    # Spoofed IPv6 port PSID v6 -> v4 direction
    # Send a packet with a wrong IPv6 port PSID
    # The BR should drop the packet.
    #

    def test_map_t_spoof_port_psid_ip6_to_ip4(self):
        """ MAP-T spoof port psid IPv6 -> IPv4 """

        eth = Ether(src=self.pg1.remote_mac,
                    dst=self.pg1.local_mac)
        ip = IPv6(src=self.ipv6_cpe_address,
                  dst=self.ipv6_map_address)
        udp = UDP(sport=self.ipv6_udp_or_tcp_spoof_port,
                  dport=self.ipv6_udp_or_tcp_internet_port)
        payload = "a" * 82
        tx_pkt = eth / ip / udp / payload

        self.pg_send(self.pg1, tx_pkt * 1)

        self.pg0.get_capture(0, timeout=1)
        self.pg0.assert_nothing_captured("Should drop IPv6 spoof port PSID")

    #
    # Spoofed IPv6 ICMP ID PSID v6 -> v4 direction
    # Send a packet with a wrong IPv6 IMCP ID PSID
    # The BR should drop the packet.
    #

    def test_map_t_spoof_icmp_id_psid_ip6_to_ip4(self):
        """ MAP-T spoof ICMP id psid IPv6 -> IPv4 """

        eth = Ether(src=self.pg1.remote_mac,
                    dst=self.pg1.local_mac)
        ip = IPv6(src=self.ipv6_cpe_address,
                  dst=self.ipv6_map_address)
        icmp = ICMPv6EchoRequest()
        icmp.id = self.ipv6_udp_or_tcp_spoof_port
        payload = "H" * 10
        tx_pkt = eth / ip / icmp / payload

        self.pg_send(self.pg1, tx_pkt * 1)

        self.pg0.get_capture(0, timeout=1)
        self.pg0.assert_nothing_captured("Should drop IPv6 spoof port PSID")

    #
    # Map to Map - same rule, different address
    #

    @unittest.skip("Fixme: correct behavior needs clarification")
    def test_map_t_same_rule_diff_addr_ip6_to_ip4(self):
        """ MAP-T same rule, diff addr IPv6 -> IPv6 """

        eth = Ether(src=self.pg1.remote_mac,
                    dst=self.pg1.local_mac)
        ip = IPv6(src=self.ipv6_cpe_address,
                  dst=self.ipv6_map_same_rule_diff_addr)
        udp = UDP(sport=self.ipv6_udp_or_tcp_map_port,
                  dport=1025)
        payload = "a" * 82
        tx_pkt = eth / ip / udp / payload

        self.pg_send(self.pg1, tx_pkt * 1)

        rx_pkts = self.pg1.get_capture(1)
        rx_pkt = rx_pkts[0]

    #
    # Map to Map - same rule, same address
    #

    @unittest.skip("Fixme: correct behavior needs clarification")
    def test_map_t_same_rule_same_addr_ip6_to_ip4(self):
        """ MAP-T same rule, same addr IPv6 -> IPv6 """

        eth = Ether(src=self.pg1.remote_mac,
                    dst=self.pg1.local_mac)
        ip = IPv6(src=self.ipv6_cpe_address,
                  dst=self.ipv6_map_same_rule_same_addr)
        udp = UDP(sport=self.ipv6_udp_or_tcp_map_port,
                  dport=1025)
        payload = "a" * 82
        tx_pkt = eth / ip / udp / payload

        self.pg_send(self.pg1, tx_pkt * 1)

        rx_pkts = self.pg1.get_capture(1)
        rx_pkt = rx_pkts[0]

if __name__ == '__main__':
    unittest.main(testRunner=VppTestRunner)