summaryrefslogtreecommitdiffstats
path: root/src
diff options
context:
space:
mode:
authorNeale Ranns <nranns@cisco.com>2019-06-26 06:59:53 -0700
committerFlorin Coras <florin.coras@gmail.com>2019-06-27 01:00:46 +0000
commit22d009b4f7243c5c934421b4294ca2a58d870043 (patch)
treeb5b608f04fc71d73dff85ae212a22c38fd29927c /src
parenta37810dcf4bf3028992abc249bf1f8e96e24a678 (diff)
vom: get the tests working again
Type: fix Fixes: 097fa66b Change-Id: Ib73714665e3325c7e1e8f939275933a4d219f96b Signed-off-by: Neale Ranns <nranns@cisco.com>
Diffstat (limited to 'src')
0 files changed, 0 insertions, 0 deletions
6 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376 1377 1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412 1413 1414 1415 1416 1417 1418 1419 1420 1421 1422 1423 1424 1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 1447 1448 1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467 1468 1469 1470 1471 1472 1473 1474 1475 1476 1477 1478 1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 1500 1501 1502 1503 1504 1505 1506 1507 1508 1509 1510 1511 1512 1513 1514 1515 1516 1517 1518 1519 1520 1521 1522 1523 1524 1525 1526 1527 1528 1529 1530 1531 1532 1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 1543 1544 1545 1546 1547 1548 1549 1550 1551 1552 1553 1554 1555 1556 1557 1558 1559 1560 1561 1562 1563 1564 1565 1566 1567 1568 1569 1570 1571 1572 1573 1574 1575 1576 1577 1578 1579 1580 1581 1582 1583 1584 1585 1586 1587 1588 1589 1590 1591 1592 1593 1594 1595 1596 1597 1598 1599 1600 1601 1602 1603 1604 1605 1606 1607 1608 1609 1610 1611 1612 1613 1614 1615 1616 1617 1618 1619 1620 1621 1622 1623 1624 1625 1626 1627 1628 1629 1630 1631 1632 1633 1634 1635 1636 1637 1638 1639 1640 1641 1642 1643 1644 1645 1646 1647 1648 1649 1650 1651 1652 1653 1654 1655 1656 1657 
import os
import fnmatch
import time
from hook import Hook
from collections import deque

# Sphinx creates auto-generated documentation by importing the python source
# files and collecting the docstrings from them. The NO_VPP_PAPI flag allows
# the vpp_papi_provider.py file to be importable without having to build
# the whole vpp api if the user only wishes to generate the test documentation.
do_import = True
try:
    no_vpp_papi = os.getenv("NO_VPP_PAPI")
    if no_vpp_papi == "1":
        do_import = False
except:
    pass

if do_import:
    from vpp_papi import VPP

# from vnet/vnet/mpls/mpls_types.h
MPLS_IETF_MAX_LABEL = 0xfffff
MPLS_LABEL_INVALID = MPLS_IETF_MAX_LABEL + 1


class L2_VTR_OP:
    L2_POP_1 = 3


class UnexpectedApiReturnValueError(Exception):
    """ exception raised when the API return value is unexpected """
    pass


class VppPapiProvider(object):
    """VPP-api provider using vpp-papi

    @property hook: hook object providing before and after api/cli hooks
    """

    _zero, _negative = range(2)

    def __init__(self, name, shm_prefix, test_class):
        self.hook = Hook("vpp-papi-provider")
        self.name = name
        self.shm_prefix = shm_prefix
        self.test_class = test_class
        self._expect_api_retval = self._zero
        self._expect_stack = []
        jsonfiles = []

        install_dir = os.getenv('VPP_TEST_INSTALL_PATH')
        for root, dirnames, filenames in os.walk(install_dir):
            for filename in fnmatch.filter(filenames, '*.api.json'):
                jsonfiles.append(os.path.join(root, filename))

        self.vpp = VPP(jsonfiles, logger=test_class.logger)
        self._events = deque()

    def __enter__(self):
        return self

    def expect_negative_api_retval(self):
        """ Expect API failure """
        self._expect_stack.append(self._expect_api_retval)
        self._expect_api_retval = self._negative
        return self

    def expect_zero_api_retval(self):
        """ Expect API success """
        self._expect_stack.append(self._expect_api_retval)
        self._expect_api_retval = self._zero
        return self

    def __exit__(self, exc_type, exc_value, traceback):
        self._expect_api_retval = self._expect_stack.pop()

    def register_hook(self, hook):
        """Replace hook registration with new hook

        :param hook:

        """
        self.hook = hook

    def collect_events(self):
        """ Collect all events from the internal queue and clear the queue. """
        e = self._events
        self._events = deque()
        return e

    def wait_for_event(self, timeout, name=None):
        """ Wait for and return next event. """
        if name:
            self.test_class.logger.debug("Expecting event within %ss",
                                         timeout)
        else:
            self.test_class.logger.debug("Expecting event '%s' within %ss",
                                         name, timeout)
        if self._events:
            self.test_class.logger.debug("Not waiting, event already queued")
        limit = time.time() + timeout
        while time.time() < limit:
            if self._events:
                e = self._events.popleft()
                if name and type(e).__name__ != name:
                    raise Exception(
                        "Unexpected event received: %s, expected: %s" %
                        (type(e).__name__, name))
                self.test_class.logger.debug("Returning event %s:%s" %
                                             (name, e))
                return e
            time.sleep(0)  # yield
        raise Exception("Event did not occur within timeout")

    def __call__(self, name, event):
        """ Enqueue event in the internal event queue. """
        # FIXME use the name instead of relying on type(e).__name__ ?
        # FIXME #2 if this throws, it is eaten silently, Ole?
        self.test_class.logger.debug("New event: %s: %s" % (name, event))
        self._events.append(event)

    def connect(self):
        """Connect the API to VPP"""
        self.vpp.connect(self.name, self.shm_prefix)
        self.papi = self.vpp.api
        self.vpp.register_event_callback(self)

    def disconnect(self):
        """Disconnect the API from VPP"""
        self.vpp.disconnect()

    def api(self, api_fn, api_args, expected_retval=0):
        """ Call API function and check it's return value.
        Call the appropriate hooks before and after the API call

        :param api_fn: API function to call
        :param api_args: tuple of API function arguments
        :param expected_retval: Expected return value (Default value = 0)
        :returns: reply from the API

        """
        self.hook.before_api(api_fn.__name__, api_args)
        reply = api_fn(**api_args)
        if self._expect_api_retval == self._negative:
            if hasattr(reply, 'retval') and reply.retval >= 0:
                msg = "API call passed unexpectedly: expected negative "\
                    "return value instead of %d in %s" % \
                    (reply.retval, repr(reply))
                self.test_class.logger.info(msg)
                raise UnexpectedApiReturnValueError(msg)
        elif self._expect_api_retval == self._zero:
            if hasattr(reply, 'retval') and reply.retval != expected_retval:
                msg = "API call failed, expected zero return value instead "\
                    "of %d in %s" % (expected_retval, repr(reply))
                self.test_class.logger.info(msg)
                raise UnexpectedApiReturnValueError(msg)
        else:
            raise Exception("Internal error, unexpected value for "
                            "self._expect_api_retval %s" %
                            self._expect_api_retval)
        self.hook.after_api(api_fn.__name__, api_args)
        return reply

    def cli(self, cli):
        """ Execute a CLI, calling the before/after hooks appropriately.

        :param cli: CLI to execute
        :returns: CLI output

        """
        self.hook.before_cli(cli)
        cli += '\n'
        r = self.papi.cli_inband(length=len(cli), cmd=cli)
        self.hook.after_cli(cli)
        if hasattr(r, 'reply'):
            return r.reply.decode().rstrip('\x00')

    def ppcli(self, cli):
        """ Helper method to print CLI command in case of info logging level.

        :param cli: CLI to execute
        :returns: CLI output
        """
        return cli + "\n" + str(self.cli(cli))

    def _convert_mac(self, mac):
        return int(mac.replace(":", ""), 16) << 16

    def show_version(self):
        """ """
        return self.api(self.papi.show_version, {})

    def pg_create_interface(self, pg_index):
        """

        :param pg_index:

        """
        return self.api(self.papi.pg_create_interface,
                        {"interface_id": pg_index})

    def sw_interface_dump(self, filter=None):
        """

        :param filter:  (Default value = None)

        """
        if filter is not None:
            args = {"name_filter_valid": 1, "name_filter": filter}
        else:
            args = {}
        return self.api(self.papi.sw_interface_dump, args)

    def sw_interface_set_table(self, sw_if_index, is_ipv6, table_id):
        """ Set the IPvX Table-id for the Interface

        :param sw_if_index:
        :param is_ipv6:
        :param table_id:

        """
        return self.api(self.papi.sw_interface_set_table,
                        {'sw_if_index': sw_if_index, 'is_ipv6': is_ipv6,
                         'vrf_id': table_id})

    def sw_interface_add_del_address(self, sw_if_index, addr, addr_len,
                                     is_ipv6=0, is_add=1, del_all=0):
        """

        :param addr: param is_ipv6:  (Default value = 0)
        :param sw_if_index:
        :param addr_len:
        :param is_ipv6:  (Default value = 0)
        :param is_add:  (Default value = 1)
        :param del_all:  (Default value = 0)

        """
        return self.api(self.papi.sw_interface_add_del_address,
                        {'sw_if_index': sw_if_index,
                         'is_add': is_add,
                         'is_ipv6': is_ipv6,
                         'del_all': del_all,
                         'address_length': addr_len,
                         'address': addr})

    def sw_interface_set_unnumbered(self, sw_if_index, ip_sw_if_index,
                                    is_add=1):
        """ Set the Interface to be unnumbered

        :param is_add:  (Default value = 1)
        :param sw_if_index - interface That will be unnumbered
        :param ip_sw_if_index - interface with an IP addres

        """
        return self.api(self.papi.sw_interface_set_unnumbered,
                        {'sw_if_index': ip_sw_if_index,
                         'unnumbered_sw_if_index': sw_if_index,
                         'is_add': is_add})

    def sw_interface_enable_disable_mpls(self, sw_if_index,
                                         is_enable=1):
        """
        Enable/Disable MPLS on the interface
        :param sw_if_index:
        :param is_enable:  (Default value = 1)

        """
        return self.api(self.papi.sw_interface_set_mpls_enable,
                        {'sw_if_index': sw_if_index,
                         'enable': is_enable})

    def sw_interface_ra_suppress(self, sw_if_index, suppress=1):
        return self.api(self.papi.sw_interface_ip6nd_ra_config,
                        {'sw_if_index': sw_if_index,
                         'suppress': suppress})

    def ip6_nd_proxy(self, address, sw_if_index, is_del=0):
        return self.api(self.papi.ip6nd_proxy_add_del,
                        {'address': address,
                         'sw_if_index': sw_if_index,
                         'is_del': is_del})

    def ip6_sw_interface_ra_config(self, sw_if_index,
                                   no,
                                   suppress,
                                   send_unicast):
        return self.api(self.papi.sw_interface_ip6nd_ra_config,
                        {'sw_if_index': sw_if_index,
                         'is_no': no,
                         'suppress': suppress,
                         'send_unicast': send_unicast})

    def ip6_sw_interface_ra_prefix(self,
                                   sw_if_index,
                                   address,
                                   address_length,
                                   use_default=0,
                                   no_advertise=0,
                                   off_link=0,
                                   no_autoconfig=0,
                                   no_onlink=0,
                                   is_no=0,
                                   val_lifetime=0xffffffff,
                                   pref_lifetime=0xffffffff):
        return self.api(self.papi.sw_interface_ip6nd_ra_prefix,
                        {'sw_if_index': sw_if_index,
                         'address': address,
                         'address_length': address_length,
                         'use_default': use_default,
                         'no_advertise': no_advertise,
                         'off_link': off_link,
                         'no_autoconfig': no_autoconfig,
                         'no_onlink': no_onlink,
                         'is_no': is_no,
                         'val_lifetime': val_lifetime,
                         'pref_lifetime': pref_lifetime})

    def ip6_sw_interface_enable_disable(self, sw_if_index, enable):
        """
        Enable/Disable An interface for IPv6
        """
        return self.api(self.papi.sw_interface_ip6_enable_disable,
                        {'sw_if_index': sw_if_index,
                         'enable': enable})

    def vxlan_add_del_tunnel(
            self,
            src_addr,
            dst_addr,
            mcast_sw_if_index=0xFFFFFFFF,
            is_add=1,
            is_ipv6=0,
            encap_vrf_id=0,
            decap_next_index=0xFFFFFFFF,
            vni=0):
        """

        :param dst_addr:
        :param src_addr:
        :param is_add:  (Default value = 1)
        :param is_ipv6:  (Default value = 0)
        :param encap_vrf_id:  (Default value = 0)
        :param decap_next_index:  (Default value = 0xFFFFFFFF)
        :param mcast_sw_if_index:  (Default value = 0xFFFFFFFF)
        :param vni:  (Default value = 0)

        """
        return self.api(self.papi.vxlan_add_del_tunnel,
                        {'is_add': is_add,
                         'is_ipv6': is_ipv6,
                         'src_address': src_addr,
                         'dst_address': dst_addr,
                         'mcast_sw_if_index': mcast_sw_if_index,
                         'encap_vrf_id': encap_vrf_id,
                         'decap_next_index': decap_next_index,
                         'vni': vni})

    def bridge_domain_add_del(self, bd_id, flood=1, uu_flood=1, forward=1,
                              learn=1, arp_term=0, is_add=1):
        """Create/delete bridge domain.

        :param int bd_id: Bridge domain index.
        :param int flood: Enable/disable bcast/mcast flooding in the BD.
            (Default value = 1)
        :param int uu_flood: Enable/disable unknown unicast flood in the BD.
            (Default value = 1)
        :param int forward: Enable/disable forwarding on all interfaces in
            the BD. (Default value = 1)
        :param int learn: Enable/disable learning on all interfaces in the BD.
            (Default value = 1)
        :param int arp_term: Enable/disable arp termination in the BD.
            (Default value = 1)
        :param int is_add: Add or delete flag. (Default value = 1)
        """
        return self.api(self.papi.bridge_domain_add_del,
                        {'bd_id': bd_id,
                         'flood': flood,
                         'uu_flood': uu_flood,
                         'forward': forward,
                         'learn': learn,
                         'arp_term': arp_term,
                         'is_add': is_add})

    def l2fib_add_del(self, mac, bd_id, sw_if_index, is_add=1, static_mac=0,
                      filter_mac=0, bvi_mac=0):
        """Create/delete L2 FIB entry.

        :param str mac: MAC address to create FIB entry for.
        :param int bd_id: Bridge domain index.
        :param int sw_if_index: Software interface index of the interface.
        :param int is_add: Add or delete flag. (Default value = 1)
        :param int static_mac: Set to 1 to create static MAC entry.
            (Default value = 0)
        :param int filter_mac: Set to 1 to drop packet that's source or
            destination MAC address contains defined MAC address.
            (Default value = 0)
        :param int bvi_mac: Set to 1 to create entry that points to BVI
            interface. (Default value = 0)
        """
        return self.api(self.papi.l2fib_add_del,
                        {'mac': self._convert_mac(mac),
                         'bd_id': bd_id,
                         'sw_if_index': sw_if_index,
                         'is_add': is_add,
                         'static_mac': static_mac,
                         'filter_mac': filter_mac,
                         'bvi_mac': bvi_mac})

    def sw_interface_set_l2_bridge(self, sw_if_index, bd_id,
                                   shg=0, bvi=0, enable=1):
        """Add/remove interface to/from bridge domain.

        :param int sw_if_index: Software interface index of the interface.
        :param int bd_id: Bridge domain index.
        :param int shg: Split-horizon group index. (Default value = 0)
        :param int bvi: Set interface as a bridge group virtual interface.
            (Default value = 0)
        :param int enable: Add or remove interface. (Default value = 1)
        """
        return self.api(self.papi.sw_interface_set_l2_bridge,
                        {'rx_sw_if_index': sw_if_index,
                         'bd_id': bd_id,
                         'shg': shg,
                         'bvi': bvi,
                         'enable': enable})

    def bridge_flags(self, bd_id, is_set, feature_bitmap):
        """Enable/disable required feature of the bridge domain with defined ID.

        :param int bd_id: Bridge domain ID.
        :param int is_set: Set to 1 to enable, set to 0 to disable the feature.
        :param int feature_bitmap: Bitmap value of the feature to be set:
            - learn (1 << 0),
            - forward (1 << 1),
            - flood (1 << 2),
            - uu-flood (1 << 3) or
            - arp-term (1 << 4).
        """
        return self.api(self.papi.bridge_flags,
                        {'bd_id': bd_id,
                         'is_set': is_set,
                         'feature_bitmap': feature_bitmap})

    def bridge_domain_dump(self, bd_id=0):
        """

        :param int bd_id: Bridge domain ID. (Default value = 0 => dump of all
            existing bridge domains returned)
        :return: Dictionary of bridge domain(s) data.
        """
        return self.api(self.papi.bridge_domain_dump,
                        {'bd_id': bd_id})

    def sw_interface_set_l2_xconnect(self, rx_sw_if_index, tx_sw_if_index,
                                     enable):
        """Create or delete unidirectional cross-connect from Tx interface to
        Rx interface.

        :param int rx_sw_if_index: Software interface index of Rx interface.
        :param int tx_sw_if_index: Software interface index of Tx interface.
        :param int enable: Create cross-connect if equal to 1, delete
            cross-connect if equal to 0.

        """
        return self.api(self.papi.sw_interface_set_l2_xconnect,
                        {'rx_sw_if_index': rx_sw_if_index,
                         'tx_sw_if_index': tx_sw_if_index,
                         'enable': enable})

    def sw_interface_set_l2_tag_rewrite(
            self,
            sw_if_index,
            vtr_oper,
            push=0,
            tag1=0,
            tag2=0):
        """L2 interface vlan tag rewrite configure request
        :param client_index - opaque cookie to identify the sender
        :param context - sender context, to match reply w/ request
        :param sw_if_index - interface the operation is applied to
        :param vtr_op - Choose from l2_vtr_op_t enum values
        :param push_dot1q - first pushed flag dot1q id set, else dot1ad
        :param tag1 - Needed for any push or translate vtr op
        :param tag2 - Needed for any push 2 or translate x-2 vtr ops

        """
        return self.api(self.papi.l2_interface_vlan_tag_rewrite,
                        {'sw_if_index': sw_if_index,
                         'vtr_op': vtr_oper,
                         'push_dot1q': push,
                         'tag1': tag1,
                         'tag2': tag2})

    def sw_interface_set_flags(self, sw_if_index, admin_up_down,
                               link_up_down=0, deleted=0):
        """

        :param admin_up_down:
        :param sw_if_index:
        :param link_up_down:  (Default value = 0)
        :param deleted:  (Default value = 0)

        """
        return self.api(self.papi.sw_interface_set_flags,
                        {'sw_if_index': sw_if_index,
                         'admin_up_down': admin_up_down,
                         'link_up_down': link_up_down,
                         'deleted': deleted})

    def create_subif(self, sw_if_index, sub_id, outer_vlan, inner_vlan,
                     no_tags=0, one_tag=0, two_tags=0, dot1ad=0, exact_match=0,
                     default_sub=0, outer_vlan_id_any=0, inner_vlan_id_any=0):
        """Create subinterface
        from vpe.api: set dot1ad = 0 for dot1q, set dot1ad = 1 for dot1ad

        :param sub_id: param inner_vlan:
        :param sw_if_index:
        :param outer_vlan:
        :param inner_vlan:
        :param no_tags:  (Default value = 0)
        :param one_tag:  (Default value = 0)
        :param two_tags:  (Default value = 0)
        :param dot1ad:  (Default value = 0)
        :param exact_match:  (Default value = 0)
        :param default_sub:  (Default value = 0)
        :param outer_vlan_id_any:  (Default value = 0)
        :param inner_vlan_id_any:  (Default value = 0)

        """
        return self.api(
            self.papi.create_subif,
            {'sw_if_index': sw_if_index,
             'sub_id': sub_id,
             'no_tags': no_tags,
             'one_tag': one_tag,
             'two_tags': two_tags,
             'dot1ad': dot1ad,
             'exact_match': exact_match,
             'default_sub': default_sub,
             'outer_vlan_id_any': outer_vlan_id_any,
             'inner_vlan_id_any': inner_vlan_id_any,
             'outer_vlan_id': outer_vlan,
             'inner_vlan_id': inner_vlan})

    def delete_subif(self, sw_if_index):
        """Delete subinterface

        :param sw_if_index:
        """
        return self.api(self.papi.delete_subif,
                        {'sw_if_index': sw_if_index})

    def create_vlan_subif(self, sw_if_index, vlan):
        """

        :param vlan:
        :param sw_if_index:

        """
        return self.api(self.papi.create_vlan_subif,
                        {'sw_if_index': sw_if_index,
                         'vlan_id': vlan})

    def create_loopback(self, mac=''):
        """

        :param mac: (Optional)
        """
        return self.api(self.papi.create_loopback,
                        {'mac_address': mac})

    def delete_loopback(self, sw_if_index):
        return self.api(self.papi.delete_loopback,
                        {'sw_if_index': sw_if_index, })

    def ip_add_del_route(
            self,
            dst_address,
            dst_address_length,
            next_hop_address,
            next_hop_sw_if_index=0xFFFFFFFF,
            table_id=0,
            next_hop_table_id=0,
            next_hop_weight=1,
            next_hop_n_out_labels=0,
            next_hop_out_label_stack=[],
            next_hop_via_label=MPLS_LABEL_INVALID,
            create_vrf_if_needed=0,
            is_resolve_host=0,
            is_resolve_attached=0,
            classify_table_index=0xFFFFFFFF,
            is_add=1,
            is_drop=0,
            is_unreach=0,
            is_prohibit=0,
            is_ipv6=0,
            is_local=0,
            is_classify=0,
            is_multipath=0,
            not_last=0):
        """

        :param dst_address_length:
        :param next_hop_sw_if_index:  (Default value = 0xFFFFFFFF)
        :param dst_address:
        :param next_hop_address:
        :param next_hop_sw_if_index:  (Default value = 0xFFFFFFFF)
        :param vrf_id:  (Default value = 0)
        :param lookup_in_vrf:  (Default value = 0)
        :param classify_table_index:  (Default value = 0xFFFFFFFF)
        :param create_vrf_if_needed:  (Default value = 0)
        :param is_add:  (Default value = 1)
        :param is_drop:  (Default value = 0)
        :param is_ipv6:  (Default value = 0)
        :param is_local:  (Default value = 0)
        :param is_classify:  (Default value = 0)
        :param is_multipath:  (Default value = 0)
        :param is_resolve_host:  (Default value = 0)
        :param is_resolve_attached:  (Default value = 0)
        :param not_last:  (Default value = 0)
        :param next_hop_weight:  (Default value = 1)

        """

        return self.api(
            self.papi.ip_add_del_route,
            {'next_hop_sw_if_index': next_hop_sw_if_index,
             'table_id': table_id,
             'classify_table_index': classify_table_index,
             'next_hop_table_id': next_hop_table_id,
             'create_vrf_if_needed': create_vrf_if_needed,
             'is_add': is_add,
             'is_drop': is_drop,
             'is_unreach': is_unreach,
             'is_prohibit': is_prohibit,
             'is_ipv6': is_ipv6,
             'is_local': is_local,
             'is_classify': is_classify,
             'is_multipath': is_multipath,
             'is_resolve_host': is_resolve_host,
             'is_resolve_attached': is_resolve_attached,
             'not_last': not_last,
             'next_hop_weight': next_hop_weight,
             'dst_address_length': dst_address_length,
             'dst_address': dst_address,
             'next_hop_address': next_hop_address,
             'next_hop_n_out_labels': next_hop_n_out_labels,
             'next_hop_via_label': next_hop_via_label,
             'next_hop_out_label_stack': next_hop_out_label_stack})

    def ip_fib_dump(self):
        return self.api(self.papi.ip_fib_dump, {})

    def ip6_fib_dump(self):
        return self.api(self.papi.ip6_fib_dump, {})

    def ip_neighbor_add_del(self,
                            sw_if_index,
                            mac_address,
                            dst_address,
                            is_add=1,
                            is_ipv6=0,
                            is_static=0,
                            is_no_adj_fib=0,
                            ):
        """ Add neighbor MAC to IPv4 or IPv6 address.

        :param sw_if_index:
        :param mac_address:
        :param dst_address:
        :param is_add:  (Default value = 1)
        :param is_ipv6:  (Default value = 0)
        :param is_static:  (Default value = 0)
        :param is_no_adj_fib:  (Default value = 0)
        """

        return self.api(
            self.papi.ip_neighbor_add_del,
            {'sw_if_index': sw_if_index,
             'is_add': is_add,
             'is_ipv6': is_ipv6,
             'is_static': is_static,
             'is_no_adj_fib': is_no_adj_fib,
             'mac_address': mac_address,
             'dst_address': dst_address
             }
        )

    def ip_neighbor_dump(self,
                         sw_if_index,
                         is_ipv6=0):
        """ Return IP neighbor dump.

        :param sw_if_index:
        :param int is_ipv6: 1 for IPv6 neighbor, 0 for IPv4. (Default = 0)
        """

        return self.api(
            self.papi.ip_neighbor_dump,
            {'is_ipv6': is_ipv6,
             'sw_if_index': sw_if_index
             }
        )

    def proxy_arp_add_del(self,
                          low_address,
                          hi_address,
                          vrf_id=0,
                          is_add=1):
        """ Config Proxy Arp Range.

        :param low_address: Start address in the rnage to Proxy for
        :param hi_address: End address in the rnage to Proxy for
        :param vrf_id: The VRF/table in which to proxy
        """

        return self.api(
            self.papi.proxy_arp_add_del,
            {'vrf_id': vrf_id,
             'is_add': is_add,
             'low_address': low_address,
             'hi_address': hi_address,
             }
        )

    def proxy_arp_intfc_enable_disable(self,
                                       sw_if_index,
                                       is_enable=1):
        """ Enable/Disable an interface for proxy ARP requests

        :param sw_if_index: Interface
        :param enable_disable: Enable/Disable
        """

        return self.api(
            self.papi.proxy_arp_intfc_enable_disable,
            {'sw_if_index': sw_if_index,
             'enable_disable': is_enable
             }
        )

    def reset_vrf(self,
                  vrf_id,
                  is_ipv6=0,
                  ):
        """ Reset VRF (remove all routes etc.) request.

        :param int vrf_id: ID of the FIB table / VRF to reset.
        :param int is_ipv6: 1 for IPv6 neighbor, 0 for IPv4. (Default = 0)
        """

        return self.api(
            self.papi.reset_vrf,
            {'vrf_id': vrf_id,
             'is_ipv6': is_ipv6,
             }
        )

    def reset_fib(self,
                  vrf_id,
                  is_ipv6=0,
                  ):
        """ Reset VRF (remove all routes etc.) request.

        :param int vrf_id: ID of the FIB table / VRF to reset.
        :param int is_ipv6: 1 for IPv6 neighbor, 0 for IPv4. (Default = 0)
        """

        return self.api(
            self.papi.reset_fib,
            {'vrf_id': vrf_id,
             'is_ipv6': is_ipv6,
             }
        )

    def ip_dump(self,
                is_ipv6=0,
                ):
        """ Return IP dump.

        :param int is_ipv6: 1 for IPv6 neighbor, 0 for IPv4. (Default = 0)
        """

        return self.api(
            self.papi.ip_dump,
            {'is_ipv6': is_ipv6,
             }
        )

    def sw_interface_span_enable_disable(
            self, sw_if_index_from, sw_if_index_to, state=1):
        """

        :param sw_if_index_from:
        :param sw_if_index_to:
        :param state:
        """
        return self.api(self.papi.sw_interface_span_enable_disable,
                        {'sw_if_index_from': sw_if_index_from,
                         'sw_if_index_to': sw_if_index_to,
                         'state': state})

    def gre_tunnel_add_del(self,
                           src_address,
                           dst_address,
                           outer_fib_id=0,
                           is_teb=0,
                           is_add=1,
                           is_ip6=0):
        """ Add a GRE tunnel

        :param src_address:
        :param dst_address:
        :param outer_fib_id:  (Default value = 0)
        :param is_add:  (Default value = 1)
        :param is_ipv6:  (Default value = 0)
        :param is_teb:  (Default value = 0)
        """

        return self.api(
            self.papi.gre_add_del_tunnel,
            {'is_add': is_add,
             'is_ipv6': is_ip6,
             'teb': is_teb,
             'src_address': src_address,
             'dst_address': dst_address,
             'outer_fib_id': outer_fib_id}
        )

    def mpls_fib_dump(self):
        return self.api(self.papi.mpls_fib_dump, {})

    def mpls_route_add_del(
            self,
            label,
            eos,
            next_hop_proto_is_ip4,
            next_hop_address,
            next_hop_sw_if_index=0xFFFFFFFF,
            table_id=0,
            next_hop_table_id=0,
            next_hop_weight=1,
            next_hop_n_out_labels=0,
            next_hop_out_label_stack=[],
            next_hop_via_label=MPLS_LABEL_INVALID,
            create_vrf_if_needed=0,
            is_resolve_host=0,
            is_resolve_attached=0,
            is_add=1,
            is_drop=0,
            is_multipath=0,
            classify_table_index=0xFFFFFFFF,
            is_classify=0,
            not_last=0):
        """

        :param dst_address_length:
        :param next_hop_sw_if_index:  (Default value = 0xFFFFFFFF)
        :param dst_address:
        :param next_hop_address:
        :param next_hop_sw_if_index:  (Default value = 0xFFFFFFFF)
        :param vrf_id:  (Default value = 0)
        :param lookup_in_vrf:  (Default value = 0)
        :param classify_table_index:  (Default value = 0xFFFFFFFF)
        :param create_vrf_if_needed:  (Default value = 0)
        :param is_add:  (Default value = 1)
        :param is_drop:  (Default value = 0)
        :param is_ipv6:  (Default value = 0)
        :param is_local:  (Default value = 0)
        :param is_classify:  (Default value = 0)
        :param is_multipath:  (Default value = 0)
        :param is_resolve_host:  (Default value = 0)
        :param is_resolve_attached:  (Default value = 0)
        :param not_last:  (Default value = 0)
        :param next_hop_weight:  (Default value = 1)

        """

        return self.api(
            self.papi.mpls_route_add_del,
            {'mr_label': label,
             'mr_eos': eos,
             'mr_table_id': table_id,
             'mr_classify_table_index': classify_table_index,
             'mr_create_table_if_needed': create_vrf_if_needed,
             'mr_is_add': is_add,
             'mr_is_classify': is_classify,
             'mr_is_multipath': is_multipath,
             'mr_is_resolve_host': is_resolve_host,
             'mr_is_resolve_attached': is_resolve_attached,
             'mr_next_hop_proto_is_ip4': next_hop_proto_is_ip4,
             'mr_next_hop_weight': next_hop_weight,
             'mr_next_hop': next_hop_address,
             'mr_next_hop_n_out_labels': next_hop_n_out_labels,
             'mr_next_hop_sw_if_index': next_hop_sw_if_index,
             'mr_next_hop_table_id': next_hop_table_id,
             'mr_next_hop_via_label': next_hop_via_label,
             'mr_next_hop_out_label_stack': next_hop_out_label_stack})

    def mpls_ip_bind_unbind(
            self,
            label,
            dst_address,
            dst_address_length,
            table_id=0,
            ip_table_id=0,
            is_ip4=1,
            create_vrf_if_needed=0,
            is_bind=1):
        """
        """
        return self.api(
            self.papi.mpls_ip_bind_unbind,
            {'mb_mpls_table_id': table_id,
             'mb_label': label,
             'mb_ip_table_id': ip_table_id,
             'mb_create_table_if_needed': create_vrf_if_needed,
             'mb_is_bind': is_bind,
             'mb_is_ip4': is_ip4,
             'mb_address_length': dst_address_length,
             'mb_address': dst_address})

    def mpls_tunnel_add_del(
            self,
            tun_sw_if_index,
            next_hop_proto_is_ip4,
            next_hop_address,
            next_hop_sw_if_index=0xFFFFFFFF,
            next_hop_table_id=0,
            next_hop_weight=1,
            next_hop_n_out_labels=0,
            next_hop_out_label_stack=[],
            next_hop_via_label=MPLS_LABEL_INVALID,
            create_vrf_if_needed=0,
            is_add=1,
            l2_only=0):
        """

        :param dst_address_length:
        :param next_hop_sw_if_index:  (Default value = 0xFFFFFFFF)
        :param dst_address:
        :param next_hop_address:
        :param next_hop_sw_if_index:  (Default value = 0xFFFFFFFF)
        :param vrf_id:  (Default value = 0)
        :param lookup_in_vrf:  (Default value = 0)
        :param classify_table_index:  (Default value = 0xFFFFFFFF)
        :param create_vrf_if_needed:  (Default value = 0)
        :param is_add:  (Default value = 1)
        :param is_drop:  (Default value = 0)
        :param is_ipv6:  (Default value = 0)
        :param is_local:  (Default value = 0)
        :param is_classify:  (Default value = 0)
        :param is_multipath:  (Default value = 0)
        :param is_resolve_host:  (Default value = 0)
        :param is_resolve_attached:  (Default value = 0)
        :param not_last:  (Default value = 0)
        :param next_hop_weight:  (Default value = 1)

        """
        return self.api(
            self.papi.mpls_tunnel_add_del,
            {'mt_sw_if_index': tun_sw_if_index,
             'mt_is_add': is_add,
             'mt_l2_only': l2_only,
             'mt_next_hop_proto_is_ip4': next_hop_proto_is_ip4,
             'mt_next_hop_weight': next_hop_weight,
             'mt_next_hop': next_hop_address,
             'mt_next_hop_n_out_labels': next_hop_n_out_labels,
             'mt_next_hop_sw_if_index': next_hop_sw_if_index,
             'mt_next_hop_table_id': next_hop_table_id,
             'mt_next_hop_out_label_stack': next_hop_out_label_stack})

    def snat_interface_add_del_feature(
            self,
            sw_if_index,
            is_inside=1,
            is_add=1):
        """Enable/disable S-NAT feature on the interface

        :param sw_if_index: Software index of the interface
        :param is_inside: 1 if inside, 0 if outside (Default value = 1)
        :param is_add: 1 if add, 0 if delete (Default value = 1)
        """
        return self.api(
            self.papi.snat_interface_add_del_feature,
            {'is_add': is_add,
             'is_inside': is_inside,
             'sw_if_index': sw_if_index})

    def snat_add_static_mapping(
            self,
            local_ip,
            external_ip=0,
            external_sw_if_index=0xFFFFFFFF,
            local_port=0,
            external_port=0,
            addr_only=1,
            vrf_id=0,
            protocol=0,
            is_add=1,
            is_ip4=1):
        """Add/delete S-NAT static mapping

        :param local_ip: Local IP address
        :param external_ip: External IP address
        :param external_sw_if_index: External interface instead of IP address
        :param local_port: Local port number (Default value = 0)
        :param external_port: External port number (Default value = 0)
        :param addr_only: 1 if address only mapping, 0 if address and port
        :param vrf_id: VRF ID
        :param protocol: IP protocol (Default value = 0)
        :param is_add: 1 if add, 0 if delete (Default value = 1)
        :param is_ip4: 1 if address type is IPv4 (Default value = 1)
        """
        return self.api(
            self.papi.snat_add_static_mapping,
            {'is_add': is_add,
             'is_ip4': is_ip4,
             'addr_only': addr_only,
             'local_ip_address': local_ip,
             'external_ip_address': external_ip,
             'local_port': local_port,
             'external_port': external_port,
             'external_sw_if_index': external_sw_if_index,
             'vrf_id': vrf_id,
             'protocol': protocol})

    def snat_add_address_range(
            self,
            first_ip_address,
            last_ip_address,
            is_add=1,
            is_ip4=1,
            vrf_id=0xFFFFFFFF):
        """Add/del S-NAT address range

        :param first_ip_address: First IP address
        :param last_ip_address: Last IP address
        :param vrf_id: VRF id for the address range
        :param is_add: 1 if add, 0 if delete (Default value = 1)
        :param is_ip4: 1 if address type is IPv4 (Default value = 1)
        """
        return self.api(
            self.papi.snat_add_address_range,
            {'is_ip4': is_ip4,
             'first_ip_address': first_ip_address,
             'last_ip_address': last_ip_address,
             'vrf_id': vrf_id,
             'is_add': is_add})

    def snat_address_dump(self):
        """Dump S-NAT addresses
        :return: Dictionary of S-NAT addresses
        """
        return self.api(self.papi.snat_address_dump, {})

    def snat_interface_dump(self):
        """Dump interfaces with S-NAT feature
        :return: Dictionary of interfaces with S-NAT feature
        """
        return self.api(self.papi.snat_interface_dump, {})

    def snat_static_mapping_dump(self):
        """Dump S-NAT static mappings
        :return: Dictionary of S-NAT static mappings
        """
        return self.api(self.papi.snat_static_mapping_dump, {})

    def snat_show_config(self):
        """Show S-NAT config
        :return: S-NAT config parameters
        """
        return self.api(self.papi.snat_show_config, {})

    def snat_add_interface_addr(
            self,
            sw_if_index,
            is_add=1):
        """Add/del S-NAT address from interface

        :param sw_if_index: Software index of the interface
        :param is_add: 1 if add, 0 if delete (Default value = 1)
        """
        return self.api(self.papi.snat_add_del_interface_addr,
                        {'is_add': is_add, 'sw_if_index': sw_if_index})

    def snat_interface_addr_dump(self):
        """Dump S-NAT addresses interfaces
        :return: Dictionary of S-NAT addresses interfaces
        """
        return self.api(self.papi.snat_interface_addr_dump, {})

    def snat_ipfix(
            self,
            domain_id=1,
            src_port=4739,
            enable=1):
        """Enable/disable S-NAT IPFIX logging

        :param domain_id: Observation domain ID (Default value = 1)
        :param src_port: Source port number (Default value = 4739)
        :param enable: 1 if enable, 0 if disable (Default value = 1)
        """
        return self.api(
            self.papi.snat_ipfix_enable_disable,
            {'domain_id': domain_id,
             'src_port': src_port,
             'enable': enable})

    def snat_user_session_dump(
            self,
            ip_address,
            vrf_id,
            is_ip4=1):
        """Dump S-NAT user's sessions

        :param ip_address: ip adress of the user to be dumped
        :param cpu_index: cpu_index on which the user is
        :param vrf_id: VRF ID
        :return: Dictionary of S-NAT sessions
        """
        return self.api(
            self.papi.snat_user_session_dump,
            {'ip_address': ip_address,
             'vrf_id': vrf_id,
             'is_ip4': is_ip4})

    def snat_user_dump(self):
        """Dump S-NAT users

        :return: Dictionary of S-NAT users
        """
        return self.api(self.papi.snat_user_dump, {})

    def snat_add_det_map(
            self,
            in_addr,
            in_plen,
            out_addr,
            out_plen,
            is_add=1):
        """Add/delete S-NAT deterministic mapping

        :param is_add - 1 if add, 0 if delete
        :param in_addr - inside IP address
        :param in_plen - inside IP address prefix length
        :param out_addr - outside IP address
        :param out_plen - outside IP address prefix length
        """
        return self.api(
            self.papi.snat_add_det_map,
            {'is_add': is_add,
             'in_addr': in_addr,
             'in_plen': in_plen,
             'out_addr': out_addr,
             'out_plen': out_plen})

    def snat_det_forward(
            self,
            in_addr):
        """Get outside address and port range from inside address

        :param in_addr - inside IP address
        """
        return self.api(
            self.papi.snat_det_forward,
            {'in_addr': in_addr})

    def snat_det_reverse(
            self,
            out_addr,
            out_port):
        """Get inside address from outside address and port

        :param out_addr - outside IP address
        :param out_port - outside port
        """
        return self.api(
            self.papi.snat_det_reverse,
            {'out_addr': out_addr,
             'out_port': out_port})

    def snat_det_map_dump(self):
        """Dump S-NAT deterministic mappings

        :return: Dictionary of S-NAT deterministic mappings
        """
        return self.api(self.papi.snat_det_map_dump, {})

    def control_ping(self):
        self.api(self.papi.control_ping)

    def bfd_udp_add(self, sw_if_index, desired_min_tx, required_min_rx,
                    detect_mult, local_addr, peer_addr, is_ipv6=0,
                    bfd_key_id=None, conf_key_id=None):
        if bfd_key_id is None:
            return self.api(self.papi.bfd_udp_add,
                            {
                                'sw_if_index': sw_if_index,
                                'desired_min_tx': desired_min_tx,
                                'required_min_rx': required_min_rx,
                                'local_addr': local_addr,
                                'peer_addr': peer_addr,
                                'is_ipv6': is_ipv6,
                                'detect_mult': detect_mult,
                            })
        else:
            return self.api(self.papi.bfd_udp_add,
                            {
                                'sw_if_index': sw_if_index,
                                'desired_min_tx': desired_min_tx,
                                'required_min_rx': required_min_rx,
                                'local_addr': local_addr,
                                'peer_addr': peer_addr,
                                'is_ipv6': is_ipv6,
                                'detect_mult': detect_mult,
                                'is_authenticated': 1,
                                'bfd_key_id': bfd_key_id,
                                'conf_key_id': conf_key_id,
                            })

    def bfd_udp_mod(self, sw_if_index, desired_min_tx, required_min_rx,
                    detect_mult, local_addr, peer_addr, is_ipv6=0):
        return self.api(self.papi.bfd_udp_mod,
                        {
                            'sw_if_index': sw_if_index,
                            'desired_min_tx': desired_min_tx,
                            'required_min_rx': required_min_rx,
                            'local_addr': local_addr,
                            'peer_addr': peer_addr,
                            'is_ipv6': is_ipv6,
                            'detect_mult': detect_mult,
                        })

    def bfd_udp_auth_activate(self, sw_if_index, local_addr, peer_addr,
                              is_ipv6=0, bfd_key_id=None, conf_key_id=None,
                              is_delayed=False):
        return self.api(self.papi.bfd_udp_auth_activate,
                        {
                            'sw_if_index': sw_if_index,
                            'local_addr': local_addr,
                            'peer_addr': peer_addr,
                            'is_ipv6': is_ipv6,
                            'is_delayed': 1 if is_delayed else 0,
                            'bfd_key_id': bfd_key_id,
                            'conf_key_id': conf_key_id,
                        })

    def bfd_udp_auth_deactivate(self, sw_if_index, local_addr, peer_addr,
                                is_ipv6=0, is_delayed=False):
        return self.api(self.papi.bfd_udp_auth_deactivate,
                        {
                            'sw_if_index': sw_if_index,
                            'local_addr': local_addr,
                            'peer_addr': peer_addr,
                            'is_ipv6': is_ipv6,
                            'is_delayed': 1 if is_delayed else 0,
                        })

    def bfd_udp_del(self, sw_if_index, local_addr, peer_addr, is_ipv6=0):
        return self.api(self.papi.bfd_udp_del,
                        {
                            'sw_if_index': sw_if_index,
                            'local_addr': local_addr,
                            'peer_addr': peer_addr,
                            'is_ipv6': is_ipv6,
                        })

    def bfd_udp_session_dump(self):
        return self.api(self.papi.bfd_udp_session_dump, {})

    def bfd_udp_session_set_flags(self, admin_up_down, sw_if_index, local_addr,
                                  peer_addr, is_ipv6=0):
        return self.api(self.papi.bfd_udp_session_set_flags, {
            'admin_up_down': admin_up_down,
            'sw_if_index': sw_if_index,
            'local_addr': local_addr,
            'peer_addr': peer_addr,
            'is_ipv6': is_ipv6,
        })

    def want_bfd_events(self, enable_disable=1):
        return self.api(self.papi.want_bfd_events, {
            'enable_disable': enable_disable,
            'pid': os.getpid(),
        })

    def bfd_auth_set_key(self, conf_key_id, auth_type, key):
        return self.api(self.papi.bfd_auth_set_key, {
            'conf_key_id': conf_key_id,
            'auth_type': auth_type,
            'key': key,
            'key_len': len(key),
        })

    def bfd_auth_del_key(self, conf_key_id):
        return self.api(self.papi.bfd_auth_del_key, {
            'conf_key_id': conf_key_id,
        })

    def bfd_auth_keys_dump(self):
        return self.api(self.papi.bfd_auth_keys_dump, {})

    def bfd_udp_set_echo_source(self, sw_if_index):
        return self.api(self.papi.bfd_udp_set_echo_source,
                        {'sw_if_index': sw_if_index})

    def bfd_udp_del_echo_source(self):
        return self.api(self.papi.bfd_udp_del_echo_source, {})

    def classify_add_del_table(
            self,
            is_add,
            mask,
            match_n_vectors=1,
            table_index=0xFFFFFFFF,
            nbuckets=2,
            memory_size=2097152,
            skip_n_vectors=0,
            next_table_index=0xFFFFFFFF,
            miss_next_index=0xFFFFFFFF,
            current_data_flag=0,
            current_data_offset=0):
        """
        :param is_add:
        :param mask:
        :param match_n_vectors: (Default value = 1)
        :param table_index: (Default value = 0xFFFFFFFF)
        :param nbuckets:  (Default value = 2)
        :param memory_size:  (Default value = 2097152)
        :param skip_n_vectors:  (Default value = 0)
        :param next_table_index:  (Default value = 0xFFFFFFFF)
        :param miss_next_index:  (Default value = 0xFFFFFFFF)
        :param current_data_flag:  (Default value = 0)
        :param current_data_offset:  (Default value = 0)
        """

        return self.api(
            self.papi.classify_add_del_table,
            {'is_add': is_add,
             'table_index': table_index,
             'nbuckets': nbuckets,
             'memory_size': memory_size,
             'skip_n_vectors': skip_n_vectors,
             'match_n_vectors': match_n_vectors,
             'next_table_index': next_table_index,
             'miss_next_index': miss_next_index,
             'current_data_flag': current_data_flag,
             'current_data_offset': current_data_offset,
             'mask': mask})

    def classify_add_del_session(
            self,
            is_add,
            table_index,
            match,
            opaque_index=0xFFFFFFFF,
            hit_next_index=0xFFFFFFFF,
            advance=0,
            action=0,
            metadata=0):
        """
        :param is_add:
        :param table_index:
        :param match:
        :param opaque_index:  (Default value = 0xFFFFFFFF)
        :param hit_next_index:  (Default value = 0xFFFFFFFF)
        :param advance:  (Default value = 0)
        :param action:  (Default value = 0)
        :param metadata:  (Default value = 0)
        """

        return self.api(
            self.papi.classify_add_del_session,
            {'is_add': is_add,
             'table_index': table_index,
             'hit_next_index': hit_next_index,
             'opaque_index': opaque_index,
             'advance': advance,
             'action': action,
             'metadata': metadata,
             'match': match})

    def input_acl_set_interface(
            self,
            is_add,
            sw_if_index,
            ip4_table_index=0xFFFFFFFF,
            ip6_table_index=0xFFFFFFFF,
            l2_table_index=0xFFFFFFFF):
        """
        :param is_add:
        :param sw_if_index:
        :param ip4_table_index:  (Default value = 0xFFFFFFFF)
        :param ip6_table_index:  (Default value = 0xFFFFFFFF)
        :param l2_table_index:  (Default value = 0xFFFFFFFF)
        """

        return self.api(
            self.papi.input_acl_set_interface,
            {'sw_if_index': sw_if_index,
             'ip4_table_index': ip4_table_index,
             'ip6_table_index': ip6_table_index,
             'l2_table_index': l2_table_index,
             'is_add': is_add})

    def set_ipfix_exporter(
            self,
            collector_address,
            src_address,
            path_mtu,
            template_interval,
            vrf_id=0,
            collector_port=4739,
            udp_checksum=0):
        return self.api(
            self.papi.set_ipfix_exporter,
            {
                'collector_address': collector_address,
                'collector_port': collector_port,
                'src_address': src_address,
                'vrf_id': vrf_id,
                'path_mtu': path_mtu,
                'template_interval': template_interval,
                'udp_checksum': udp_checksum,
            })

    def dhcp_proxy_config(self,
                          dhcp_server,
                          dhcp_src_address,
                          rx_table_id=0,
                          server_table_id=0,
                          is_add=1,
                          is_ipv6=0):
        return self.api(
            self.papi.dhcp_proxy_config,
            {
                'rx_vrf_id': rx_table_id,
                'server_vrf_id': server_table_id,
                'is_ipv6': is_ipv6,
                'is_add': is_add,
                'dhcp_server': dhcp_server,
                'dhcp_src_address': dhcp_src_address,
            })

    def dhcp_proxy_set_vss(self,
                           table_id,
                           fib_id,
                           oui,
                           is_add=1,
                           is_ip6=0):
        return self.api(
            self.papi.dhcp_proxy_set_vss,
            {
                'tbl_id': table_id,
                'fib_id': fib_id,
                'is_ipv6': is_ip6,
                'is_add': is_add,
                'oui': oui,
            })

    def ip_mroute_add_del(self,
                          src_address,
                          grp_address,
                          grp_address_length,
                          e_flags,
                          next_hop_sw_if_index,
                          i_flags,
                          table_id=0,
                          create_vrf_if_needed=0,
                          is_add=1,
                          is_ipv6=0,
                          is_local=0):
        """
        """
        return self.api(
            self.papi.ip_mroute_add_del,
            {'next_hop_sw_if_index': next_hop_sw_if_index,
             'entry_flags': e_flags,
             'itf_flags': i_flags,
             'create_vrf_if_needed': create_vrf_if_needed,
             'is_add': is_add,
             'is_ipv6': is_ipv6,
             'is_local': is_local,
             'grp_address_length': grp_address_length,
             'grp_address': grp_address,
             'src_address': src_address})

    def mfib_signal_dump(self):
        return self.api(self.papi.mfib_signal_dump, {})

    def ip_mfib_dump(self):
        return self.api(self.papi.ip_mfib_dump, {})

    def lisp_enable_disable(self, is_enabled):
        return self.api(
            self.papi.lisp_enable_disable,
            {
                'is_en': is_enabled,
            })

    def lisp_locator_set(self,
                         ls_name,
                         is_add=1):
        return self.api(
            self.papi.lisp_add_del_locator_set,
            {
                'is_add': is_add,
                'locator_set_name': ls_name
            })

    def lisp_locator_set_dump(self):
        return self.api(self.papi.lisp_locator_set_dump, {})

    def lisp_locator(self,
                     ls_name,
                     sw_if_index,
                     priority=1,
                     weight=1,
                     is_add=1):
        return self.api(
            self.papi.lisp_add_del_locator,
            {
                'is_add': is_add,
                'locator_set_name': ls_name,
                'sw_if_index': sw_if_index,
                'priority': priority,
                'weight': weight
            })

    def lisp_locator_dump(self, is_index_set, ls_name=None, ls_index=0):
        return self.api(
            self.papi.lisp_locator_dump,
            {
                'is_index_set': is_index_set,
                'ls_name': ls_name,
                'ls_index': ls_index,
            })

    def lisp_local_mapping(self,
                           ls_name,
                           eid_type,
                           eid,
                           prefix_len,
                           vni=0,
                           key_id=0,
                           key="",
                           is_add=1):
        return self.api(
            self.papi.lisp_add_del_local_eid,
            {
                'locator_set_name': ls_name,
                'is_add': is_add,
                'eid_type': eid_type,
                'eid': eid,
                'prefix_len': prefix_len,
                'vni': vni,
                'key_id': key_id,
                'key': key
            })

    def lisp_eid_table_dump(self,
                            eid_set=0,
                            prefix_length=0,
                            vni=0,
                            eid_type=0,
                            eid=None,
                            filter_opt=0):
        return self.api(
            self.papi.lisp_eid_table_dump,
            {
                'eid_set': eid_set,
                'prefix_length': prefix_length,
                'vni': vni,
                'eid_type': eid_type,
                'eid': eid,
                'filter': filter_opt,
            })

    def lisp_remote_mapping(self,
                            eid_type,
                            eid,
                            eid_prefix_len=0,
                            vni=0,
                            rlocs=None,
                            rlocs_num=0,
                            is_src_dst=0,
                            is_add=1):
        return self.api(
            self.papi.lisp_add_del_remote_mapping,
            {
                'is_add': is_add,
                'eid_type': eid_type,
                'eid': eid,
                'eid_len': eid_prefix_len,
                'rloc_num': rlocs_num,
                'rlocs': rlocs,
                'vni': vni,
                'is_src_dst': is_src_dst,
            })

    def lisp_adjacency(self,
                       leid,
                       reid,
                       leid_len,
                       reid_len,
                       eid_type,
                       is_add=1,
                       vni=0):
        return self.api(
            self.papi.lisp_add_del_adjacency,
            {
                'is_add': is_add,
                'vni': vni,
                'eid_type': eid_type,
                'leid': leid,
                'reid': reid,
                'leid_len': leid_len,
                'reid_len': reid_len,
            })

    def lisp_adjacencies_get(self, vni=0):
        return self.api(
            self.papi.lisp_adjacencies_get,
            {
                'vni': vni
            })

    def map_add_domain(self,
                       ip6_prefix,
                       ip6_prefix_len,
                       ip6_src,
                       ip6_src_prefix_len,
                       ip4_prefix,
                       ip4_prefix_len,
                       ea_bits_len=0,
                       psid_offset=0,
                       psid_length=0,
                       is_translation=0,
                       mtu=1280):
        return self.api(
            self.papi.map_add_domain,
            {
                'ip6_prefix': ip6_prefix,
                'ip6_prefix_len': ip6_prefix_len,
                'ip4_prefix': ip4_prefix,
                'ip4_prefix_len': ip4_prefix_len,
                'ip6_src': ip6_src,
                'ip6_src_prefix_len': ip6_src_prefix_len,
                'ea_bits_len': ea_bits_len,
                'psid_offset': psid_offset,
                'psid_length': psid_length,
                'is_translation': is_translation,
                'mtu': mtu
            })