aboutsummaryrefslogtreecommitdiffstats
path: root/test/vpp_papi_provider.py
blob: 320ea12c6dcfe4b1076a738ec43c69feab47e9a4 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
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
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
1747
1748
1749
1750
1751
1752
1753
1754
1755
1756
1757
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
1785
1786
1787
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
1809
1810
1811
1812
1813
1814
1815
1816
1817
1818
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
1830
1831
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
1899
1900
1901
1902
1903
1904
1905
1906
1907
1908
1909
1910
1911
1912
1913
1914
1915
1916
1917
1918
1919
1920
1921
1922
1923
1924
1925
1926
1927
1928
1929
1930
1931
1932
1933
1934
1935
1936
1937
1938
1939
1940
1941
1942
1943
1944
1945
1946
1947
1948
1949
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
2028
2029
2030
2031
2032
2033
2034
2035
2036
2037
2038
2039
2040
2041
2042
2043
2044
2045
2046
2047
2048
2049
2050
2051
2052
2053
2054
2055
2056
2057
2058
2059
2060
2061
2062
2063
2064
2065
2066
2067
2068
2069
2070
2071
2072
2073
2074
2075
2076
2077
2078
2079
2080
2081
2082
2083
2084
2085
2086
2087
2088
2089
2090
2091
2092
2093
2094
2095
2096
2097
2098
2099
2100
2101
2102
2103
2104
2105
2106
2107
2108
2109
2110
2111
2112
2113
2114
2115
2116
2117
2118
2119
2120
2121
2122
2123
2124
2125
2126
2127
2128
2129
2130
2131
2132
2133
2134
2135
2136
2137
2138
2139
2140
2141
2142
2143
2144
2145
2146
2147
2148
2149
2150
2151
2152
2153
2154
2155
2156
2157
2158
2159
2160
2161
2162
2163
2164
2165
2166
2167
2168
2169
2170
2171
2172
2173
2174
2175
2176
2177
2178
2179
2180
2181
2182
2183
2184
2185
2186
2187
2188
2189
2190
2191
2192
2193
2194
2195
2196
2197
2198
2199
2200
2201
2202
2203
2204
2205
2206
2207
2208
2209
2210
2211
2212
2213
2214
2215
2216
2217
2218
2219
2220
2221
2222
2223
2224
2225
2226
2227
2228
2229
2230
2231
2232
2233
2234
2235
2236
2237
2238
2239
2240
2241
2242
2243
2244
2245
2246
2247
2248
2249
2250
2251
2252
2253
2254
2255
2256
2257
2258
2259
2260
2261
2262
2263
2264
2265
2266
2267
2268
2269
2270
2271
2272
2273
2274
2275
2276
2277
2278
2279
2280
2281
2282
2283
2284
2285
2286
2287
2288
2289
2290
2291
2292
2293
2294
2295
2296
2297
2298
2299
2300
2301
2302
2303
2304
2305
2306
2307
2308
2309
2310
2311
2312
2313
2314
2315
2316
2317
2318
2319
2320
2321
2322
2323
2324
2325
2326
2327
2328
2329
2330
2331
2332
2333
2334
2335
2336
2337
2338
2339
2340
2341
2342
2343
2344
2345
2346
2347
2348
2349
2350
2351
2352
2353
2354
2355
2356
2357
2358
2359
2360
2361
2362
2363
2364
2365
2366
2367
2368
2369
2370
2371
2372
2373
2374
2375
2376
2377
2378
2379
2380
2381
2382
2383
2384
2385
2386
2387
2388
2389
2390
2391
2392
2393
2394
2395
2396
2397
2398
2399
2400
2401
2402
2403
2404
2405
2406
2407
2408
2409
2410
2411
2412
2413
2414
2415
2416
2417
2418
2419
2420
2421
2422
2423
2424
2425
2426
2427
2428
2429
2430
2431
2432
2433
2434
2435
2436
2437
2438
2439
2440
2441
2442
2443
2444
2445
2446
2447
2448
2449
2450
2451
2452
2453
2454
2455
2456
2457
2458
2459
2460
2461
2462
2463
2464
2465
2466
2467
2468
2469
2470
2471
2472
2473
2474
2475
2476
2477
2478
2479
2480
2481
2482
2483
2484
2485
2486
2487
2488
2489
2490
2491
2492
2493
2494
2495
2496
2497
2498
2499
2500
2501
2502
2503
2504
2505
2506
2507
2508
2509
2510
2511
2512
2513
2514
2515
2516
2517
2518
2519
2520
2521
2522
2523
2524
2525
2526
2527
2528
2529
2530
2531
2532
2533
2534
2535
2536
2537
2538
2539
2540
2541
2542
2543
2544
2545
2546
2547
2548
2549
2550
2551
2552
2553
2554
2555
2556
2557
2558
2559
2560
2561
2562
2563
2564
2565
2566
2567
2568
2569
2570
2571
2572
2573
2574
2575
2576
2577
2578
2579
2580
2581
2582
2583
2584
2585
2586
2587
2588
2589
2590
2591
2592
2593
2594
2595
2596
2597
2598
2599
2600
2601
2602
2603
2604
2605
2606
2607
2608
2609
2610
2611
2612
2613
2614
2615
2616
2617
2618
2619
2620
2621
2622
2623
2624
2625
2626
2627
2628
2629
2630
2631
2632
2633
2634
2635
2636
2637
2638
2639
2640
2641
2642
2643
2644
2645
2646
2647
2648
2649
2650
2651
2652
2653
2654
2655
2656
2657
2658
2659
2660
2661
2662
2663
2664
2665
2666
2667
2668
2669
2670
2671
2672
2673
2674
2675
2676
2677
2678
2679
2680
2681
2682
2683
2684
2685
2686
2687
2688
2689
2690
2691
2692
2693
2694
2695
2696
2697
2698
2699
2700
2701
2702
2703
2704
2705
2706
2707
2708
2709
2710
2711
2712
2713
2714
2715
2716
2717
2718
2719
2720
2721
2722
2723
2724
2725
2726
2727
2728
2729
2730
2731
2732
2733
2734
2735
2736
2737
2738
2739
2740
2741
2742
2743
2744
2745
2746
2747
2748
2749
2750
2751
2752
2753
2754
2755
2756
2757
2758
2759
2760
2761
2762
2763
2764
2765
2766
2767
2768
2769
2770
2771
2772
2773
2774
2775
2776
2777
2778
2779
2780
2781
2782
2783
2784
2785
2786
2787
2788
2789
2790
2791
2792
2793
2794
2795
2796
2797
2798
2799
2800
2801
2802
2803
2804
2805
2806
2807
2808
2809
2810
2811
2812
2813
2814
2815
2816
2817
2818
2819
2820
2821
2822
2823
2824
2825
2826
2827
2828
2829
2830
2831
2832
2833
2834
2835
2836
2837
2838
2839
2840
2841
2842
2843
2844
2845
2846
2847
2848
2849
2850
2851
2852
2853
2854
2855
2856
2857
2858
2859
2860
2861
2862
2863
2864
2865
2866
2867
2868
2869
2870
2871
2872
2873
2874
2875
2876
2877
2878
2879
2880
2881
2882
2883
2884
2885
2886
2887
2888
2889
2890
2891
2892
2893
2894
2895
2896
2897
2898
2899
2900
2901
2902
2903
2904
2905
2906
2907
2908
2909
2910
2911
2912
2913
2914
2915
2916
2917
2918
2919
2920
2921
2922
2923
2924
2925
2926
2927
2928
2929
2930
2931
2932
2933
2934
2935
2936
2937
2938
2939
2940
2941
2942
2943
2944
2945
2946
2947
2948
2949
2950
2951
2952
2953
2954
2955
2956
2957
2958
2959
2960
2961
2962
2963
2964
2965
2966
2967
2968
2969
2970
2971
2972
2973
2974
2975
2976
2977
2978
2979
2980
2981
2982
2983
2984
2985
2986
2987
2988
2989
2990
2991
2992
2993
2994
2995
2996
2997
2998
2999
3000
3001
3002
3003
3004
3005
3006
3007
3008
3009
3010
3011
3012
3013
3014
3015
3016
3017
3018
3019
3020
3021
3022
3023
3024
3025
3026
3027
3028
3029
3030
3031
3032
3033
3034
3035
3036
3037
3038
3039
3040
3041
3042
3043
3044
3045
3046
3047
3048
3049
3050
3051
3052
3053
3054
3055
3056
3057
3058
3059
3060
3061
3062
3063
3064
3065
3066
3067
3068
3069
3070
3071
3072
3073
3074
3075
3076
3077
3078
3079
3080
3081
3082
3083
3084
3085
3086
3087
3088
3089
3090
3091
3092
3093
3094
3095
3096
3097
3098
3099
3100
3101
3102
3103
3104
3105
3106
3107
3108
3109
3110
3111
3112
3113
3114
3115
3116
3117
3118
3119
3120
3121
3122
3123
3124
3125
3126
3127
3128
3129
3130
3131
3132
3133
3134
3135
3136
3137
3138
3139
3140
3141
3142
3143
3144
3145
3146
3147
3148
3149
3150
3151
3152
3153
3154
3155
3156
3157
3158
3159
3160
3161
3162
3163
3164
3165
3166
3167
3168
3169
3170
3171
3172
3173
3174
3175
3176
3177
3178
3179
3180
3181
3182
3183
3184
3185
3186
3187
3188
3189
3190
3191
3192
3193
3194
3195
3196
3197
3198
3199
3200
3201
3202
3203
3204
3205
3206
3207
3208
3209
3210
3211
3212
3213
3214
3215
3216
3217
3218
3219
3220
3221
3222
3223
3224
3225
3226
3227
3228
3229
3230
3231
3232
3233
3234
3235
3236
3237
3238
3239
3240
3241
3242
3243
3244
3245
3246
3247
3248
3249
3250
3251
3252
3253
3254
3255
3256
3257
3258
3259
3260
3261
3262
3263
3264
3265
3266
3267
3268
3269
3270
3271
3272
3273
3274
3275
3276
3277
3278
3279
3280
3281
3282
3283
3284
3285
3286
3287
3288
3289
3290
3291
3292
3293
3294
3295
3296
3297
3298
3299
3300
3301
3302
3303
3304
3305
3306
3307
3308
3309
3310
3311
3312
3313
3314
3315
3316
3317
3318
3319
3320
3321
3322
3323
3324
3325
3326
3327
3328
3329
3330
3331
3332
3333
3334
3335
3336
3337
3338
3339
3340
3341
3342
3343
3344
3345
3346
3347
3348
3349
3350
3351
3352
3353
3354
3355
3356
3357
3358
3359
3360
3361
3362
3363
3364
3365
3366
3367
3368
3369
3370
3371
3372
3373
3374
3375
3376
3377
3378
3379
3380
3381
3382
3383
3384
3385
3386
3387
3388
3389
3390
3391
3392
3393
3394
3395
3396
3397
3398
3399
3400
3401
3402
3403
3404
3405
3406
3407
3408
3409
3410
3411
3412
3413
3414
3415
3416
3417
3418
3419
3420
3421
3422
3423
3424
3425
3426
3427
3428
3429
3430
3431
3432
3433
3434
3435
3436
3437
3438
3439
3440
3441
3442
3443
3444
3445
3446
3447
3448
3449
3450
3451
3452
3453
3454
3455
3456
3457
3458
3459
3460
3461
3462
3463
3464
3465
3466
3467
3468
3469
3470
3471
3472
3473
3474
3475
3476
3477
3478
3479
3480
3481
3482
3483
3484
3485
3486
3487
3488
3489
3490
3491
3492
3493
3494
3495
3496
3497
3498
3499
3500
3501
3502
3503
3504
3505
3506
3507
3508
3509
3510
3511
3512
3513
3514
3515
3516
3517
3518
3519
3520
3521
3522
3523
3524
3525
3526
3527
3528
3529
3530
3531
3532
3533
3534
3535
3536
3537
3538
3539
3540
3541
3542
3543
3544
3545
3546
3547
3548
3549
3550
3551
3552
3553
3554
3555
3556
3557
3558
3559
3560
3561
3562
3563
3564
3565
3566
3567
3568
3569
3570
3571
3572
3573
3574
3575
3576
3577
3578
3579
3580
3581
3582
3583
3584
3585
3586
3587
3588
3589
3590
3591
3592
3593
3594
3595
3596
3597
3598
3599
3600
3601
3602
3603
3604
3605
3606
3607
3608
3609
3610
3611
3612
3613
3614
3615
3616
3617
3618
3619
3620
3621
3622
3623
3624
3625
3626
3627
3628
3629
3630
3631
3632
3633
3634
3635
3636
3637
3638
3639
3640
3641
3642
3643
3644
3645
3646
3647
3648
3649
3650
3651
3652
3653
3654
3655
3656
3657
3658
3659
3660
3661
3662
3663
3664
3665
3666
3667
3668
3669
3670
3671
3672
3673
3674
3675
3676
3677
3678
3679
3680
3681
3682
3683
3684
3685
3686
3687
3688
3689
3690
3691
3692
3693
3694
3695
3696
3697
3698
3699
3700
3701
3702
3703
3704
3705
3706
3707
3708
3709
3710
3711
3712
3713
3714
3715
3716
3717
3718
3719
3720
3721
3722
3723
3724
3725
3726
3727
3728
3729
3730
3731
3732
3733
3734
3735
3736
3737
3738
3739
3740
3741
3742
3743
3744
3745
3746
3747
3748
3749
3750
3751
3752
3753
3754
3755
3756
3757
3758
3759
3760
3761
3762
3763
3764
3765
3766
3767
3768
3769
3770
3771
3772
3773
3774
3775
3776
3777
3778
3779
3780
3781
3782
3783
3784
3785
3786
3787
3788
3789
3790
3791
3792
3793
3794
3795
3796
3797
3798
3799
3800
3801
3802
3803
3804
3805
3806
3807
3808
3809
3810
3811
3812
3813
3814
3815
3816
3817
3818
3819
3820
3821
3822
3823
3824
3825
3826
3827
3828
3829
3830
3831
3832
3833
3834
3835
3836
3837
3838
3839
3840
3841
3842
3843
3844
3845
3846
3847
3848
3849
3850
3851
3852
3853
3854
3855
3856
3857
3858
3859
3860
3861
3862
3863
3864
3865
3866
3867
3868
3869
3870
3871
3872
3873
3874
3875
3876
3877
3878
3879
3880
3881
3882
3883
3884
3885
3886
3887
3888
3889
3890
3891
3892
3893
3894
3895
3896
3897
3898
3899
3900
3901
3902
3903
3904
3905
3906
3907
3908
3909
3910
3911
3912
3913
3914
3915
3916
3917
3918
3919
3920
3921
3922
3923
3924
3925
3926
3927
3928
3929
3930
3931
3932
3933
3934
3935
3936
3937
3938
3939
3940
3941
3942
3943
3944
3945
3946
3947
3948
3949
3950
3951
3952
3953
3954
3955
3956
3957
3958
3959
3960
3961
3962
3963
3964
3965
3966
3967
3968
3969
3970
3971
3972
3973
3974
3975
3976
3977
3978
3979
3980
3981
3982
3983
3984
3985
3986
3987
3988
3989
3990
3991
3992
3993
3994
3995
3996
3997
3998
3999
4000
4001
4002
4003
4004
4005
4006
4007
4008
4009
4010
4011
4012
4013
4014
4015
4016
4017
4018
4019
4020
4021
4022
4023
4024
4025
4026
4027
4028
4029
4030
4031
4032
4033
4034
4035
4036
4037
4038
4039
4040
4041
4042
4043
4044
4045
4046
4047
4048
4049
4050
4051
4052
4053
4054
4055
4056
4057
4058
4059
4060
4061
4062
4063
4064
4065
4066
4067
4068
4069
4070
4071
4072
4073
4074
4075
4076
4077
4078
4079
4080
4081
4082
4083
4084
4085
4086
4087
4088
4089
4090
4091
4092
4093
4094
4095
4096
4097
4098
4099
4100
4101
import fnmatch
import os
import time
from collections import deque

from six import moves
from vpp_mac import mactobinary
from hook import Hook
from vpp_l2 import L2_PORT_TYPE

# 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.

try:
    from vpp_papi import VPP
except ImportError:
    if not os.getenv("NO_VPP_PAPI") == 1:
        raise
    pass

# 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_DISABLED = 0
    L2_PUSH_1 = 1
    L2_PUSH_2 = 2
    L2_POP_1 = 3
    L2_POP_2 = 4
    L2_TRANSLATE_1_1 = 5
    L2_TRANSLATE_1_2 = 6
    L2_TRANSLATE_2_1 = 7
    L2_TRANSLATE_2_2 = 8


class QOS_SOURCE:
    EXT = 0
    VLAN = 1
    MPLS = 2
    IP = 3


class SYSLOG_SEVERITY:
    EMERG = 0
    ALERT = 1
    CRIT = 2
    ERR = 3
    WARN = 4
    NOTICE = 5
    INFO = 6
    DBG = 7


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, read_timeout):
        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_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,
                       read_timeout=read_timeout)
        self._events = deque()

    def __enter__(self):
        return self

    def assert_negative_api_retval(self):
        """ Expect API failure - used with with, e.g.:
            with self.vapi.assert_negative_api_retval():
                self.vapi.<api call expected to fail>
        """
        self._expect_stack.append(self._expect_api_retval)
        self._expect_api_retval = self._negative
        return self

    def assert_zero_api_retval(self):
        """ Expect API success - used with with, e.g.:
            with self.vapi.assert_negative_api_retval():
                self.vapi.<api call expected to succeed>

            note: this is useful only inside another with block
                  as success is the default expected value
        """
        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 '%s' within %ss",
                                         name, timeout)
        else:
            self.test_class.logger.debug("Expecting event within %ss",
                                         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, moves.reprlib.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 %d return value instead "\
                    "of %d in %s" % (expected_retval, reply.retval,
                                     moves.reprlib.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=str(cli).encode('utf8'))
        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 mactobinary(mac)

    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_get_table(self, sw_if_index, is_ipv6):
        """ Get the IPvX Table-id for the Interface

        :param sw_if_index:
        :param is_ipv6:
        :return table_id

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

    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 ip_address_dump(self, sw_if_index, is_ipv6=0):
        return self.api(self.papi.ip_address_dump,
                        {'sw_if_index': sw_if_index,
                         'is_ipv6': is_ipv6})

    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 ip_unnumbered_dump(self, sw_if_index=0xffffffff):
        return self.api(self.papi.ip_unnumbered_dump,
                        {'sw_if_index': sw_if_index})

    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 set_ip_flow_hash(self,
                         table_id,
                         src=1,
                         dst=1,
                         sport=1,
                         dport=1,
                         proto=1,
                         reverse=0,
                         is_ip6=0):
        return self.api(self.papi.set_ip_flow_hash,
                        {'vrf_id': table_id,
                         'src': src,
                         'dst': dst,
                         'dport': dport,
                         'sport': sport,
                         'proto': proto,
                         'reverse': reverse,
                         'is_ipv6': is_ip6})

    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,
            instance=0xFFFFFFFF):
        """

        :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)
        :param instance:  (Default value = 0xFFFFFFFF)

        """
        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,
                         'instance': instance})

    def geneve_add_del_tunnel(
            self,
            local_addr,
            remote_addr,
            mcast_sw_if_index=0xFFFFFFFF,
            is_add=1,
            is_ipv6=0,
            encap_vrf_id=0,
            decap_next_index=0xFFFFFFFF,
            vni=0):
        """

        :param remote_addr:
        :param local_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.geneve_add_del_tunnel,
                        {'is_add': is_add,
                         'is_ipv6': is_ipv6,
                         'local_address': local_addr,
                         'remote_address': remote_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 bd_ip_mac_add_del(self, bd_id, mac, ip, is_ipv6=0, is_add=1):
        return self.api(self.papi.bd_ip_mac_add_del,
                        {'bd_id': bd_id,
                         'is_add': is_add,
                         'ip': ip,
                         'mac': mac})

    def bd_ip_mac_dump(self, bd_id):
        return self.api(self.papi.bd_ip_mac_dump,
                        {'bd_id': bd_id})

    def want_ip4_arp_events(self, enable_disable=1, address=0):
        return self.api(self.papi.want_ip4_arp_events,
                        {'enable_disable': enable_disable,
                         'address': address,
                         'pid': os.getpid(), })

    def want_ip6_nd_events(self, enable_disable=1, address=0):
        return self.api(self.papi.want_ip6_nd_events,
                        {'enable_disable': enable_disable,
                         'address': address,
                         'pid': os.getpid(), })

    def want_ip6_ra_events(self, enable_disable=1):
        return self.api(self.papi.want_ip6_ra_events,
                        {'enable_disable': enable_disable,
                         'pid': os.getpid(), })

    def ip6nd_send_router_solicitation(self, sw_if_index, irt=1, mrt=120,
                                       mrc=0, mrd=0):
        return self.api(self.papi.ip6nd_send_router_solicitation,
                        {'irt': irt,
                         'mrt': mrt,
                         'mrc': mrc,
                         'mrd': mrd,
                         'sw_if_index': sw_if_index})

    def ip6_nd_address_autoconfig(self, sw_if_index, enable,
                                  install_default_routes):
        return self.api(self.papi.ip6_nd_address_autoconfig,
                        {'sw_if_index': sw_if_index,
                         'enable': enable,
                         'install_default_routes': install_default_routes})

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

    def want_macs_learn_events(self, enable_disable=1, scan_delay=0,
                               max_macs_in_event=0, learn_limit=0):
        return self.api(self.papi.want_l2_macs_events,
                        {'enable_disable': enable_disable,
                         'scan_delay': scan_delay,
                         'max_macs_in_event': max_macs_in_event,
                         'learn_limit': learn_limit,
                         'pid': os.getpid(), })

    def want_dhcp6_reply_events(self, enable_disable=1):
        return self.api(self.papi.want_dhcp6_reply_events,
                        {'enable_disable': enable_disable,
                         'pid': os.getpid()})

    def want_dhcp6_pd_reply_events(self, enable_disable=1):
        return self.api(self.papi.want_dhcp6_pd_reply_events,
                        {'enable_disable': enable_disable,
                         'pid': os.getpid()})

    def dhcp6_clients_enable_disable(self, enable=1):
        return self.api(self.papi.dhcp6_clients_enable_disable,
                        {'enable': enable})

    def dhcp6_send_client_message(self, msg_type, sw_if_index, T1, T2,
                                  addresses, server_index=0xFFFFFFFF,
                                  irt=0, mrt=0, mrc=1, mrd=0, stop=0,
                                  ):
        return self.api(self.papi.dhcp6_send_client_message,
                        {'sw_if_index': sw_if_index,
                         'server_index': server_index,
                         'irt': irt,
                         'mrt': mrt,
                         'mrc': mrc,
                         'mrd': mrd,
                         'stop': stop,
                         'msg_type': msg_type,
                         'T1': T1,
                         'T2': T2,
                         'n_addresses': len(addresses),
                         'addresses': addresses})

    def dhcp6_pd_send_client_message(self, msg_type, sw_if_index, T1, T2,
                                     prefixes, server_index=0xFFFFFFFF,
                                     irt=0, mrt=0, mrc=1, mrd=0, stop=0,
                                     ):
        return self.api(self.papi.dhcp6_pd_send_client_message,
                        {'sw_if_index': sw_if_index,
                         'server_index': server_index,
                         'irt': irt,
                         'mrt': mrt,
                         'mrc': mrc,
                         'mrd': mrd,
                         'stop': stop,
                         'msg_type': msg_type,
                         'T1': T1,
                         'T2': T2,
                         'n_prefixes': len(prefixes),
                         'prefixes': prefixes})

    def dhcp6_client_enable_disable(self, sw_if_index, prefix_group='',
                                    enable=1):
        return self.api(self.papi.dhcp6_client_enable_disable,
                        {'sw_if_index': sw_if_index,
                         'enable': enable})

    def dhcp6_pd_client_enable_disable(self, sw_if_index, prefix_group='',
                                       enable=1):
        return self.api(self.papi.dhcp6_pd_client_enable_disable,
                        {'sw_if_index': sw_if_index,
                         'prefix_group': prefix_group,
                         'enable': enable})

    def ip6_add_del_address_using_prefix(self, sw_if_index, address,
                                         prefix_length, prefix_group,
                                         is_add=1):
        return self.api(self.papi.ip6_add_del_address_using_prefix,
                        {'sw_if_index': sw_if_index,
                         'prefix_group': prefix_group,
                         'address': address,
                         'prefix_length': prefix_length,
                         '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 l2fib_flush_int(self, sw_if_index):
        """Flush L2 FIB entries for sw_if_index.

        :param int sw_if_index: Software interface index of the interface.
        """
        return self.api(self.papi.l2fib_flush_int,
                        {'sw_if_index': sw_if_index})

    def l2fib_flush_bd(self, bd_id):
        """Flush L2 FIB entries for bd_id.

        :param int sw_if_index: Bridge Domain id.
        """
        return self.api(self.papi.l2fib_flush_bd,
                        {'bd_id': bd_id})

    def l2fib_flush_all(self):
        """Flush all L2 FIB.
        """
        return self.api(self.papi.l2fib_flush_all, {})

    def l2_fib_table_dump(self, bd_id):
        """ Dump the L2 FIB """
        return self.api(self.papi.l2_fib_table_dump,
                        {'bd_id': bd_id})

    def sw_interface_set_l2_bridge(self, sw_if_index, bd_id,
                                   shg=0, port_type=L2_PORT_TYPE.NORMAL,
                                   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,
                         'port_type': port_type,
                         '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 flags: 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,
                         'flags': 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_l2_emulation(
            self,
            sw_if_index,
            enable=1):
        """L2 Emulation
        :param sw_if_index - interface the operation is applied to

        """
        return self.api(self.papi.l2_emulation,
                        {'sw_if_index': sw_if_index,
                         'enable': enable})

    def sw_interface_set_ip_directed_broadcast(
            self,
            sw_if_index,
            enable=1):
        """IP Directed broadcast
        :param sw_if_index - interface the operation is applied to

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

    def sw_interface_set_flags(self, sw_if_index, admin_up_down):
        """

        :param admin_up_down:
        :param sw_if_index:

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

    def sw_interface_set_mtu(self, sw_if_index, mtu=[0, 0, 0, 0]):
        """
        :param sw_if_index:
        :param mtu:

        """
        return self.api(self.papi.sw_interface_set_mtu,
                        {'sw_if_index': sw_if_index,
                         'mtu': mtu})

    def sw_interface_set_promiscuous(self, sw_if_index, enable):
        """
        :param sw_if_index:
        :param enable:

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

    def sw_interface_set_mac_address(self, sw_if_index, mac):
        return self.api(self.papi.sw_interface_set_mac_address,
                        {'sw_if_index': sw_if_index,
                         'mac_address': mac})

    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 create_p2pethernet_subif(self, sw_if_index, remote_mac, subif_id):
        """Create p2p ethernet subinterface

        :param sw_if_index: main (parent) interface
        :param remote_mac: client (remote) mac address

        """
        return self.api(
            self.papi.p2p_ethernet_add,
            {'parent_if_index': sw_if_index,
             'remote_mac': remote_mac,
             'subif_id': subif_id})

    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 delete_p2pethernet_subif(self, sw_if_index, remote_mac):
        """Delete p2p ethernet subinterface

        :param sw_if_index: main (parent) interface
        :param remote_mac: client (remote) mac address

        """
        return self.api(
            self.papi.p2p_ethernet_del,
            {'parent_if_index': sw_if_index,
             'remote_mac': remote_mac})

    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_table_add_del(self,
                         table_id,
                         is_add=1,
                         is_ipv6=0):
        """

        :param table_id
        :param is_add:  (Default value = 1)
        :param is_ipv6:  (Default value = 0)

        """

        return self.api(
            self.papi.ip_table_add_del,
            {'table_id': table_id,
             'is_add': is_add,
             'is_ipv6': is_ipv6})

    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,
            next_hop_id=0xFFFFFFFF,
            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,
            is_dvr=0,
            is_udp_encap=0,
            is_source_lookup=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 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 is_dvr:  (Default value = 0)
        :param is_source_lookup:  (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,
             '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,
             'is_dvr': is_dvr,
             'is_source_lookup': is_source_lookup,
             'is_udp_encap': is_udp_encap,
             'next_hop_weight': next_hop_weight,
             'dst_address_length': dst_address_length,
             'dst_address': dst_address,
             'next_hop_id': next_hop_id,
             '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,
            {'proxy':
             {
                 'vrf_id': vrf_id,
                 'low_address': low_address,
                 'hi_address': hi_address,
             },
             'is_add': is_add})

    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, is_l2=0):
        """

        :param sw_if_index_from:
        :param sw_if_index_to:
        :param state:
        :param is_l2:
        """
        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,
                         'is_l2': is_l2,
                         })

    def gre_tunnel_add_del(self,
                           src_address,
                           dst_address,
                           outer_fib_id=0,
                           tunnel_type=0,
                           instance=0xFFFFFFFF,
                           session_id=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 tunnel_type:  (Default value = 0)
        :param instance:  (Default value = 0xFFFFFFFF)
        :param session_id: (Defalt value = 0)
        :param is_add:  (Default value = 1)
        :param is_ipv6:  (Default value = 0)
        """

        return self.api(
            self.papi.gre_add_del_tunnel,
            {'is_add': is_add,
             'is_ipv6': is_ip6,
             'tunnel_type': tunnel_type,
             'instance': instance,
             'src_address': src_address,
             'dst_address': dst_address,
             'outer_fib_id': outer_fib_id,
             'session_id': session_id}
        )

    def udp_encap_add(self,
                      src_ip,
                      dst_ip,
                      src_port,
                      dst_port,
                      table_id=0):
        """ Add a GRE tunnel
        :param src_ip:
        :param dst_ip:
        :param src_port:
        :param dst_port:
        :param outer_fib_id:  (Default value = 0)
        """

        return self.api(
            self.papi.udp_encap_add,
            {
                'udp_encap': {
                    'src_ip': src_ip,
                    'dst_ip': dst_ip,
                    'src_port': src_port,
                    'dst_port': dst_port,
                    'table_id': table_id
                }
            })

    def udp_encap_del(self, id):
        return self.api(self.papi.udp_encap_del, {'id': id})

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

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

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

    def mpls_table_add_del(
            self,
            table_id,
            is_add=1):
        """

        :param table_id
        :param is_add:  (Default value = 1)

        """

        return self.api(
            self.papi.mpls_table_add_del,
            {'mt_table_id': table_id,
             'mt_is_add': is_add})

    def mpls_route_add_del(
            self,
            label,
            eos,
            next_hop_proto,
            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,
            is_resolve_host=0,
            is_resolve_attached=0,
            is_interface_rx=0,
            is_rpf_id=0,
            is_multicast=0,
            is_add=1,
            is_drop=0,
            is_multipath=0,
            classify_table_index=0xFFFFFFFF,
            is_classify=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 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_multicast:  (Default value = 0)
        :param is_resolve_host:  (Default value = 0)
        :param is_resolve_attached:  (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_is_add': is_add,
             'mr_is_classify': is_classify,
             'mr_is_multipath': is_multipath,
             'mr_is_multicast': is_multicast,
             'mr_is_resolve_host': is_resolve_host,
             'mr_is_resolve_attached': is_resolve_attached,
             'mr_is_interface_rx': is_interface_rx,
             'mr_is_rpf_id': is_rpf_id,
             'mr_next_hop_proto': next_hop_proto,
             '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,
            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_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,
            is_add=1,
            l2_only=0,
            is_multicast=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 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 next_hop_weight:  (Default value = 1)
        :param is_multicast:  (Default value = 0)

        """
        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_is_multicast': is_multicast,
             '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_via_label': next_hop_via_label,
             'mt_next_hop_out_label_stack': next_hop_out_label_stack})

    def mpls_tunnel_dump(self, sw_if_index=0xffffffff):
        return self.api(self.papi.mpls_tunnel_dump,
                        {'sw_if_index': sw_if_index})

    def nat44_interface_add_del_feature(
            self,
            sw_if_index,
            is_inside=1,
            is_add=1):
        """Enable/disable NAT44 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.nat44_interface_add_del_feature,
            {'is_add': is_add,
             'is_inside': is_inside,
             'sw_if_index': sw_if_index})

    def nat44_interface_add_del_output_feature(
            self,
            sw_if_index,
            is_inside=1,
            is_add=1):
        """Enable/disable NAT44 output 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.nat44_interface_add_del_output_feature,
            {'is_add': is_add,
             'is_inside': is_inside,
             'sw_if_index': sw_if_index})

    def nat44_add_del_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,
            twice_nat=0,
            self_twice_nat=0,
            out2in_only=0,
            tag="",
            is_add=1):
        """Add/delete NAT44 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 twice_nat: 1 if translate external host address and port
        :param self_twice_nat: 1 if translate external host address and port
                               whenever external host address equals
                               local address of internal host
        :param out2in_only: if 1 rule is matching only out2in direction
        :param tag: Opaque string tag
        :param is_add: 1 if add, 0 if delete (Default value = 1)
        """
        return self.api(
            self.papi.nat44_add_del_static_mapping,
            {'is_add': is_add,
             '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,
             'twice_nat': twice_nat,
             'self_twice_nat': self_twice_nat,
             'out2in_only': out2in_only,
             'tag': tag})

    def nat44_add_del_identity_mapping(
            self,
            ip='0',
            sw_if_index=0xFFFFFFFF,
            port=0,
            addr_only=1,
            vrf_id=0,
            protocol=0,
            tag='',
            is_add=1):
        """Add/delete NAT44 identity mapping

        :param ip: IP address (Default value = 0)
        :param sw_if_index: Interface instead of IP address
        :param port: 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 tag: Opaque string tag
        :param is_add: 1 if add, 0 if delete (Default value = 1)
        """
        return self.api(
            self.papi.nat44_add_del_identity_mapping,
            {'is_add': is_add,
             'addr_only': addr_only,
             'ip_address': ip,
             'port': port,
             'sw_if_index': sw_if_index,
             'vrf_id': vrf_id,
             'tag': tag,
             'protocol': protocol})

    def nat44_add_del_address_range(
            self,
            first_ip_address,
            last_ip_address,
            is_add=1,
            vrf_id=0xFFFFFFFF,
            twice_nat=0):
        """Add/del NAT44 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 twice_nat: twice NAT address for extenal hosts
        :param is_add: 1 if add, 0 if delete (Default value = 1)
        """
        return self.api(
            self.papi.nat44_add_del_address_range,
            {'first_ip_address': first_ip_address,
             'last_ip_address': last_ip_address,
             'vrf_id': vrf_id,
             'twice_nat': twice_nat,
             'is_add': is_add})

    def nat44_address_dump(self):
        """Dump NAT44 addresses
        :return: Dictionary of NAT44 addresses
        """
        return self.api(self.papi.nat44_address_dump, {})

    def nat44_interface_dump(self):
        """Dump interfaces with NAT44 feature
        :return: Dictionary of interfaces with NAT44 feature
        """
        return self.api(self.papi.nat44_interface_dump, {})

    def nat44_interface_output_feature_dump(self):
        """Dump interfaces with NAT44 output feature
        :return: Dictionary of interfaces with NAT44 output feature
        """
        return self.api(self.papi.nat44_interface_output_feature_dump, {})

    def nat44_static_mapping_dump(self):
        """Dump NAT44 static mappings
        :return: Dictionary of NAT44 static mappings
        """
        return self.api(self.papi.nat44_static_mapping_dump, {})

    def nat44_identity_mapping_dump(self):
        """Dump NAT44 identity mappings
        :return: Dictionary of NAT44 identity mappings
        """
        return self.api(self.papi.nat44_identity_mapping_dump, {})

    def nat_show_config(self):
        """Show NAT plugin config
        :return: NAT plugin config parameters
        """
        return self.api(self.papi.nat_show_config, {})

    def nat44_add_interface_addr(
            self,
            sw_if_index,
            twice_nat=0,
            is_add=1):
        """Add/del NAT44 address from interface

        :param sw_if_index: Software index of the interface
        :param twice_nat: twice NAT address for extenal hosts
        :param is_add: 1 if add, 0 if delete (Default value = 1)
        """
        return self.api(
            self.papi.nat44_add_del_interface_addr,
            {'is_add': is_add,
             'sw_if_index': sw_if_index,
             'twice_nat': twice_nat})

    def nat44_interface_addr_dump(self):
        """Dump NAT44 addresses interfaces
        :return: Dictionary of NAT44 addresses interfaces
        """
        return self.api(self.papi.nat44_interface_addr_dump, {})

    def nat_ipfix(
            self,
            domain_id=1,
            src_port=4739,
            enable=1):
        """Enable/disable 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.nat_ipfix_enable_disable,
            {'domain_id': domain_id,
             'src_port': src_port,
             'enable': enable})

    def nat44_user_session_dump(
            self,
            ip_address,
            vrf_id):
        """Dump NAT44 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.nat44_user_session_dump,
            {'ip_address': ip_address,
             'vrf_id': vrf_id})

    def nat44_user_dump(self):
        """Dump NAT44 users

        :return: Dictionary of NAT44 users
        """
        return self.api(self.papi.nat44_user_dump, {})

    def nat44_add_del_lb_static_mapping(
            self,
            external_addr,
            external_port,
            protocol,
            twice_nat=0,
            self_twice_nat=0,
            out2in_only=0,
            tag='',
            affinity=0,
            local_num=0,
            locals=[],
            is_add=1):
        """Add/delete NAT44 load balancing static mapping

        :param twice_nat: 1 if translate external host address and port
        :param tag: Opaque string tag
        :param affinity: if 0 disabled, otherwise client IP affinity timeout
        :param is_add - 1 if add, 0 if delete
        """
        return self.api(
            self.papi.nat44_add_del_lb_static_mapping,
            {'is_add': is_add,
             'external_addr': external_addr,
             'external_port': external_port,
             'protocol': protocol,
             'twice_nat': twice_nat,
             'self_twice_nat': self_twice_nat,
             'out2in_only': out2in_only,
             'tag': tag,
             'affinity': affinity,
             'local_num': local_num,
             'locals': locals})

    def nat44_lb_static_mapping_dump(self):
        """Dump NAT44 load balancing static mappings

        :return: Dictionary of NAT44 load balancing static mapping
        """
        return self.api(self.papi.nat44_lb_static_mapping_dump, {})

    def nat44_del_session(
            self,
            addr,
            port,
            protocol,
            vrf_id=0,
            is_in=1,
            ext_host_address=None,
            ext_host_port=0):
        """Delete NAT44 session

        :param addr: IPv4 address
        :param por: port number
        :param protocol: IP protocol number
        :param vrf_id: VRF ID
        :param is_in: 1 if inside network addres and port pari, 0 if outside
        :param ext_host_address: external host IPv4 address
        :param ext_host_port: external host port
        """
        if ext_host_address is None:
            return self.api(
                self.papi.nat44_del_session,
                {'address': addr,
                 'port': port,
                 'protocol': protocol,
                 'vrf_id': vrf_id,
                 'is_in': is_in})
        else:
            return self.api(
                self.papi.nat44_del_session,
                {'address': addr,
                 'port': port,
                 'protocol': protocol,
                 'vrf_id': vrf_id,
                 'is_in': is_in,
                 'ext_host_valid': 1,
                 'ext_host_address': ext_host_address,
                 'ext_host_port': ext_host_port})

    def nat44_forwarding_enable_disable(
            self,
            enable):
        """Enable/disable forwarding for NAT44

        :param enable: 1 for enable, 0 for disable
        """
        return self.api(
            self.papi.nat44_forwarding_enable_disable,
            {'enable': enable})

    def nat_set_reass(
            self,
            timeout=2,
            max_reass=1024,
            max_frag=5,
            drop_frag=0,
            is_ip6=0):
        """Set NAT virtual fragmentation reassembly

        :param timeout: reassembly timeout (Default 2sec)
        :param max_reass: maximum concurrent reassemblies (Default 1024)
        :param max_frag: maximum fragmets per reassembly (Default 5)
        :param drop_frag: if 0 translate fragments, otherwise drop fragments
        :param is_ip6: 1 if IPv6, 0 if IPv4
        """
        return self.api(
            self.papi.nat_set_reass,
            {'timeout': timeout,
             'max_reass': max_reass,
             'max_frag': max_frag,
             'drop_frag': drop_frag,
             'is_ip6': is_ip6})

    def nat_get_reass(self):
        """Get NAT virtual fragmentation reassembly configuration

        :return: NAT virtual fragmentation reassembly configuration
        """
        return self.api(self.papi.nat_get_reass, {})

    def nat_reass_dump(self):
        """Dump NAT virtual fragmentation reassemblies

        :return: Dictionary of NAT virtual fragmentation reassemblies
        """
        return self.api(self.papi.nat_reass_dump, {})

    def nat_det_add_del_map(
            self,
            in_addr,
            in_plen,
            out_addr,
            out_plen,
            is_add=1):
        """Add/delete deterministic NAT 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.nat_det_add_del_map,
            {'is_add': is_add,
             'is_nat44': 1,
             'in_addr': in_addr,
             'in_plen': in_plen,
             'out_addr': out_addr,
             'out_plen': out_plen})

    def nat_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.nat_det_forward,
            {'in_addr': in_addr,
             'is_nat44': 1})

    def nat_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.nat_det_reverse,
            {'out_addr': out_addr,
             'out_port': out_port})

    def nat_det_map_dump(self):
        """Dump deterministic NAT mappings

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

    def nat_set_timeouts(
            self,
            udp=300,
            tcp_established=7440,
            tcp_transitory=240,
            icmp=60):
        """Set values of timeouts for NAT sessions (in seconds)

        :param udp - UDP timeout (Default value = 300)
        :param tcp_established - TCP established timeout (Default value = 7440)
        :param tcp_transitory - TCP transitory timeout (Default value = 240)
        :param icmp - ICMP timeout (Default value = 60)
        """
        return self.api(
            self.papi.nat_set_timeouts,
            {'udp': udp,
             'tcp_established': tcp_established,
             'tcp_transitory': tcp_transitory,
             'icmp': icmp})

    def nat_get_timeouts(self):
        """Get values of timeouts for NAT sessions

        :return: Timeouts for NAT sessions (in seconds)
        """
        return self.api(self.papi.nat_get_timeouts, {})

    def nat_set_addr_and_port_alloc_alg(
            self,
            alg=0,
            psid_offset=0,
            psid_length=0,
            psid=0,
            start_port=0,
            end_port=0):
        """Set address and port assignment algorithm

        :param alg: algorithm: 0 - default, 1 - MAP-E, 2 - port range
        :param psid_offset: number of offset bits (valid only for MAP-E alg)
        :param psid_length: length of PSID (valid only for MAP-E alg)
        :param psid: Port Set Identifier value (valid only for MAP-E alg)
        :param start_port: beginning of the port range
        :param end_port: end of the port range
        """
        return self.api(
            self.papi.nat_set_addr_and_port_alloc_alg,
            {'alg': alg,
             'psid_offset': psid_offset,
             'psid_length': psid_length,
             'psid': psid,
             'start_port': start_port,
             'end_port': end_port})

    def nat_get_addr_and_port_alloc_alg(self):
        """Get address and port assignment algorithm"""
        return self.api(self.papi.nat_get_addr_and_port_alloc_alg, {})

    def nat_set_mss_clamping(self, enable=0, mss_value=1500):
        """Set TCP MSS rewriting configuration

        :param enable: disable(0)/enable(1) MSS rewriting feature
        :param mss_value: MSS value to be used for MSS rewriting
        """
        return self.api(
            self.papi.nat_set_mss_clamping,
            {'enable': enable, 'mss_value': mss_value})

    def nat_get_mss_clamping(self):
        """Get TCP MSS rewriting configuration"""
        return self.api(self.papi.nat_get_mss_clamping, {})

    def nat_det_close_session_out(
            self,
            out_addr,
            out_port,
            ext_addr,
            ext_port):
        """Close deterministic NAT session using outside address and port

        :param out_addr - outside IP address
        :param out_port - outside port
        :param ext_addr - external host IP address
        :param ext_port - external host port
        """
        return self.api(
            self.papi.nat_det_close_session_out,
            {'out_addr': out_addr,
             'out_port': out_port,
             'ext_addr': ext_addr,
             'ext_port': ext_port})

    def nat_det_close_session_in(
            self,
            in_addr,
            in_port,
            ext_addr,
            ext_port):
        """Close deterministic NAT session using inside address and port

        :param in_addr - inside IP address
        :param in_port - inside port
        :param ext_addr - external host IP address
        :param ext_port - external host port
        """
        return self.api(
            self.papi.nat_det_close_session_in,
            {'in_addr': in_addr,
             'in_port': in_port,
             'ext_addr': ext_addr,
             'ext_port': ext_port,
             'is_nat44': 1})

    def nat_det_session_dump(
            self,
            user_addr):
        """Dump deterministic NAT sessions belonging to a user

        :param user_addr - inside IP address of the user
        :return: Dictionary of deterministic NAT sessions
        """
        return self.api(
            self.papi.nat_det_session_dump,
            {'is_nat44': 1,
             'user_addr': user_addr})

    def nat64_add_del_pool_addr_range(
            self,
            start_addr,
            end_addr,
            vrf_id=0xFFFFFFFF,
            is_add=1):
        """Add/del address range to NAT64 pool

        :param start_addr: First IP address
        :param end_addr: Last IP address
        :param vrf_id: VRF id for the address range
        :param is_add: 1 if add, 0 if delete (Default value = 1)
        """
        return self.api(
            self.papi.nat64_add_del_pool_addr_range,
            {'start_addr': start_addr,
             'end_addr': end_addr,
             'vrf_id': vrf_id,
             'is_add': is_add})

    def nat64_pool_addr_dump(self):
        """Dump NAT64 pool addresses
        :return: Dictionary of NAT64 pool addresses
        """
        return self.api(self.papi.nat64_pool_addr_dump, {})

    def nat64_add_del_interface(
            self,
            sw_if_index,
            is_inside=1,
            is_add=1):
        """Enable/disable NAT64 feature on the interface
           :param sw_if_index: 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.nat64_add_del_interface,
            {'sw_if_index': sw_if_index,
             'is_inside': is_inside,
             'is_add': is_add})

    def nat64_interface_dump(self):
        """Dump interfaces with NAT64 feature
        :return: Dictionary of interfaces with NAT64 feature
        """
        return self.api(self.papi.nat64_interface_dump, {})

    def nat64_add_del_static_bib(
            self,
            in_ip,
            out_ip,
            in_port,
            out_port,
            protocol,
            vrf_id=0,
            is_add=1):
        """Add/delete S-NAT static BIB entry

        :param in_ip: Inside IPv6 address
        :param out_ip: Outside IPv4 address
        :param in_port: Inside port number
        :param out_port: Outside port number
        :param protocol: IP protocol
        :param vrf_id: VRF ID (Default value = 0)
        :param is_add: 1 if add, 0 if delete (Default value = 1)
        """
        return self.api(
            self.papi.nat64_add_del_static_bib,
            {'i_addr': in_ip,
             'o_addr': out_ip,
             'i_port': in_port,
             'o_port': out_port,
             'vrf_id': vrf_id,
             'proto': protocol,
             'is_add': is_add})

    def nat64_bib_dump(self, protocol=255):
        """Dump NAT64 BIB

        :param protocol: IP protocol (Default value = 255, all BIBs)
        :returns: Dictionary of NAT64 BIB entries
        """
        return self.api(self.papi.nat64_bib_dump, {'proto': protocol})

    def nat64_set_timeouts(self, udp=300, icmp=60, tcp_trans=240, tcp_est=7440,
                           tcp_incoming_syn=6):
        """Set values of timeouts for NAT64 (in seconds)

        :param udpi: UDP timeout (Default value = 300)
        :param icmp: ICMP timeout (Default value = 60)
        :param tcp_trans: TCP transitory timeout (Default value = 240)
        :param tcp_est: TCP established timeout (Default value = 7440)
        :param tcp_incoming_syn: TCP incoming SYN timeout (Default value = 6)
        """
        return self.api(
            self.papi.nat64_set_timeouts,
            {'udp': udp,
             'icmp': icmp,
             'tcp_trans': tcp_trans,
             'tcp_est': tcp_est,
             'tcp_incoming_syn': tcp_incoming_syn})

    def nat64_get_timeouts(self):
        """Get values of timeouts for NAT64

        :return: Timeouts for NAT64 (in seconds)
        """
        return self.api(self.papi.nat64_get_timeouts, {})

    def nat64_st_dump(self, protocol=255):
        """Dump NAT64 session table

        :param protocol: IP protocol (Default value = 255, all STs)
        :returns: Dictionary of NAT64 sesstion table entries
        """
        return self.api(self.papi.nat64_st_dump, {'proto': protocol})

    def nat64_add_del_prefix(self, prefix, plen, vrf_id=0, is_add=1):
        """Add/del NAT64 prefix

        :param prefix: NAT64 prefix
        :param plen: NAT64 prefix length
        :param vrf_id: VRF id of tenant (Default 0)
        :param is_add: 1 if add, 0 if delete (Default value = 1)
        """
        return self.api(
            self.papi.nat64_add_del_prefix,
            {'prefix': prefix,
             'prefix_len': plen,
             'vrf_id': vrf_id,
             'is_add': is_add})

    def nat64_prefix_dump(self):
        """Dump NAT64 prefix

        :returns: Dictionary of NAT64 prefixes
        """
        return self.api(self.papi.nat64_prefix_dump, {})

    def nat64_add_interface_addr(
            self,
            sw_if_index,
            is_add=1):
        """Add/del NAT64 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.nat64_add_del_interface_addr,
                        {'is_add': is_add, 'sw_if_index': sw_if_index})

    def dslite_set_aftr_addr(self, ip6, ip4):
        """Set DS-Lite AFTR addresses

        :param ip4: IPv4 address
        :param ip6: IPv6 address
        """
        return self.api(
            self.papi.dslite_set_aftr_addr,
            {'ip4_addr': ip4,
             'ip6_addr': ip6})

    def dslite_set_b4_addr(self, ip6, ip4):
        """Set DS-Lite B4 IPv6 address

        :param ip4: IPv4 address
        :param ip6: IPv6 address
        """
        return self.api(
            self.papi.dslite_set_b4_addr,
            {'ip4_addr': ip4,
             'ip6_addr': ip6})

    def dslite_add_del_pool_addr_range(
            self,
            start_addr,
            end_addr,
            is_add=1):
        """Add/del address range to DS-Lite pool

        :param start_addr: First IP address
        :param end_addr: Last IP address
        :param is_add: 1 if add, 0 if delete (Default value = 1)
        """
        return self.api(
            self.papi.dslite_add_del_pool_addr_range,
            {'start_addr': start_addr,
             'end_addr': end_addr,
             'is_add': is_add})

    def nat66_add_del_interface(
            self,
            sw_if_index,
            is_inside=1,
            is_add=1):
        """Enable/disable NAT66 feature on the interface
           :param sw_if_index: 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.nat66_add_del_interface,
            {'sw_if_index': sw_if_index,
             'is_inside': is_inside,
             'is_add': is_add})

    def nat66_add_del_static_mapping(
            self,
            in_ip,
            out_ip,
            vrf_id=0,
            is_add=1):
        """Add/delete NAT66 static mapping

        :param in_ip: Inside IPv6 address
        :param out_ip: Outside IPv6 address
        :param vrf_id: VRF ID (Default value = 0)
        :param is_add: 1 if add, 0 if delete (Default value = 1)
        """
        return self.api(
            self.papi.nat66_add_del_static_mapping,
            {'local_ip_address': in_ip,
             'external_ip_address': out_ip,
             'vrf_id': vrf_id,
             'is_add': is_add})

    def nat66_interface_dump(self):
        """Dump interfaces with NAT66 feature
        :return: Dictionary of interfaces with NAT66 feature
        """
        return self.api(self.papi.nat66_interface_dump, {})

    def nat66_static_mapping_dump(self):
        """Dump NAT66 static mappings
        :return: Dictionary of NAT66 static mappings
        """
        return self.api(self.papi.nat66_static_mapping_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 bfd_udp_get_echo_source(self):
        return self.api(self.papi.bfd_udp_get_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)
        """

        mask_len = ((len(mask) - 1) / 16 + 1) * 16
        mask = mask + '\0' * (mask_len - len(mask))
        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_len': mask_len,
             '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)
        """

        match_len = ((len(match) - 1) / 16 + 1) * 16
        match = match + '\0' * (match_len - len(match))
        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_len': match_len,
             '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 output_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.output_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,
                           vss_type=255,
                           vpn_ascii_id="",
                           oui=0,
                           vpn_index=0,
                           is_add=1,
                           is_ip6=0):
        return self.api(
            self.papi.dhcp_proxy_set_vss,
            {
                'tbl_id': table_id,
                'vss_type': vss_type,
                'vpn_ascii_id': vpn_ascii_id,
                'oui': oui,
                'vpn_index': vpn_index,
                'is_add': is_add,
                'is_ipv6': is_ip6,
            })

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

    def dhcp_client(self,
                    sw_if_index,
                    hostname,
                    client_id='',
                    is_add=1,
                    set_broadcast_flag=1,
                    want_dhcp_events=0):
        return self.api(
            self.papi.dhcp_client_config,
            {
                'is_add': is_add,
                'client': {
                    'sw_if_index': sw_if_index,
                    'hostname': hostname,
                    'id': client_id,
                    'want_dhcp_event': want_dhcp_events,
                    'set_broadcast_flag': set_broadcast_flag,
                    'pid': os.getpid()}
            })

    def ip_mroute_add_del(self,
                          src_address,
                          grp_address,
                          grp_address_length,
                          e_flags,
                          next_hop_afi,
                          next_hop_sw_if_index,
                          next_hop_address,
                          i_flags,
                          bier_imp=0,
                          rpf_id=0,
                          table_id=0,
                          is_add=1,
                          is_ipv6=0,
                          is_local=0):
        """
        IP Multicast Route add/del
        """
        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,
             'table_id': table_id,
             'rpf_id': rpf_id,
             'is_add': is_add,
             'is_ipv6': is_ipv6,
             'is_local': is_local,
             'bier_imp': bier_imp,
             'next_hop_afi': next_hop_afi,
             'grp_address_length': grp_address_length,
             'grp_address': grp_address,
             'src_address': src_address,
             'nh_address': next_hop_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 ip6_mfib_dump(self):
        return self.api(self.papi.ip6_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=[],
                            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_src,
                       ip4_prefix,
                       ea_bits_len=0,
                       psid_offset=0,
                       psid_length=0,
                       is_translation=0,
                       is_rfc6052=0,
                       mtu=1280):
        return self.api(
            self.papi.map_add_domain,
            {
                'ip6_prefix': ip6_prefix,
                'ip4_prefix': ip4_prefix,
                'ip6_src': ip6_src,
                'ea_bits_len': ea_bits_len,
                'psid_offset': psid_offset,
                'psid_length': psid_length,
                'is_translation': is_translation,
                'is_rfc6052': is_rfc6052,
                'mtu': mtu
            })

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

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

        """
        return self.api(self.papi.gtpu_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,
                         'teid': teid})

    def vxlan_gpe_add_del_tunnel(
            self,
            src_addr,
            dst_addr,
            mcast_sw_if_index=0xFFFFFFFF,
            is_add=1,
            is_ipv6=0,
            encap_vrf_id=0,
            decap_vrf_id=0,
            protocol=3,
            vni=0):
        """

        :param local:
        :param remote:
        :param is_add:  (Default value = 1)
        :param is_ipv6:  (Default value = 0)
        :param encap_vrf_id:  (Default value = 0)
        :param decap_vrf_id:  (Default value = 0)
        :param mcast_sw_if_index:  (Default value = 0xFFFFFFFF)
        :param protocol:  (Default value = 3)
        :param vni:  (Default value = 0)

        """
        return self.api(self.papi.vxlan_gpe_add_del_tunnel,
                        {'is_add': is_add,
                         'is_ipv6': is_ipv6,
                         'local': src_addr,
                         'remote': dst_addr,
                         'mcast_sw_if_index': mcast_sw_if_index,
                         'encap_vrf_id': encap_vrf_id,
                         'decap_vrf_id': decap_vrf_id,
                         'protocol': protocol,
                         'vni': vni})

    def vxlan_gbp_tunnel_add_del(
            self,
            src,
            dst,
            mcast_sw_if_index=0xFFFFFFFF,
            is_add=1,
            is_ipv6=0,
            encap_table_id=0,
            vni=0,
            instance=0xFFFFFFFF):
        """

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

        """
        return self.api(self.papi.vxlan_gbp_tunnel_add_del,
                        {'is_add': is_add,
                         'tunnel': {
                             'src': src,
                             'dst': dst,
                             'mcast_sw_if_index': mcast_sw_if_index,
                             'encap_table_id': encap_table_id,
                             'vni': vni,
                             'instance': instance}})

    def vxlan_gbp_tunnel_dump(self, sw_if_index=0xffffffff):
        return self.api(self.papi.vxlan_gbp_tunnel_dump,
                        {'sw_if_index': sw_if_index,
                         '_no_type_conversion': True})

    def pppoe_add_del_session(
            self,
            client_ip,
            client_mac,
            session_id=0,
            is_add=1,
            is_ipv6=0,
            decap_vrf_id=0):
        """

        :param is_add:  (Default value = 1)
        :param is_ipv6:  (Default value = 0)
        :param client_ip:
        :param session_id:  (Default value = 0)
        :param client_mac:
        :param decap_vrf_id:  (Default value = 0)

        """
        return self.api(self.papi.pppoe_add_del_session,
                        {'is_add': is_add,
                         'is_ipv6': is_ipv6,
                         'session_id': session_id,
                         'client_ip': client_ip,
                         'decap_vrf_id': decap_vrf_id,
                         'client_mac': client_mac})

    def sr_mpls_policy_add(self, bsid, weight, type, segments):
        return self.api(self.papi.sr_mpls_policy_add,
                        {'bsid': bsid,
                         'weight': weight,
                         'type': type,
                         'n_segments': len(segments),
                         'segments': segments})

    def sr_mpls_policy_del(self, bsid):
        return self.api(self.papi.sr_mpls_policy_del,
                        {'bsid': bsid})

    def sr_localsid_add_del(self,
                            localsid,
                            behavior,
                            nh_addr4,
                            nh_addr6,
                            is_del=0,
                            end_psp=0,
                            sw_if_index=0xFFFFFFFF,
                            vlan_index=0,
                            fib_table=0,
                            ):
        """ Add/del IPv6 SR local-SID.

        :param localsid:
        :param behavior: END=1; END.X=2; END.DX2=4; END.DX6=5;
        :param behavior: END.DX4=6; END.DT6=7; END.DT4=8
        :param nh_addr4:
        :param nh_addr6:
        :param is_del:  (Default value = 0)
        :param end_psp: (Default value = 0)
        :param sw_if_index: (Default value = 0xFFFFFFFF)
        :param vlan_index:  (Default value = 0)
        :param fib_table:   (Default value = 0)
        """
        return self.api(
            self.papi.sr_localsid_add_del,
            {'is_del': is_del,
             'localsid': localsid,
             'end_psp': end_psp,
             'behavior': behavior,
             'sw_if_index': sw_if_index,
             'vlan_index': vlan_index,
             'fib_table': fib_table,
             'nh_addr4': nh_addr4,
             'nh_addr6': nh_addr6
             }
        )

    def sr_policy_add(
            self,
            bsid_addr,
            weight=1,
            is_encap=1,
            type=0,
            fib_table=0,
            n_segments=0,
            segments=[]):
        """
        :param bsid_addr: bindingSID of the SR Policy
        :param weight: weight of the sid list. optional. (default: 1)
        :param is_encap: (bool) whether SR policy should Encap or SRH insert \
            (default: Encap)
        :param type: type/behavior of the SR policy. (default or spray) \
            (default: default)
        :param fib_table: VRF where to install the FIB entry for the BSID \
            (default: 0)
        :param n_segments: number of segments \
            (default: 0)
        :param segments: a vector of IPv6 address composing the segment list \
            (default: [])
        """
        return self.api(
            self.papi.sr_policy_add,
            {'bsid_addr': bsid_addr,
             'weight': weight,
             'is_encap': is_encap,
             'type': type,
             'fib_table': fib_table,
             'n_segments': n_segments,
             'segments': segments
             }
        )

    def sr_policy_del(
            self,
            bsid_addr,
            sr_policy_index=0):
        """
        :param bsid: bindingSID of the SR Policy
        :param sr_policy_index: index of the sr policy (default: 0)
        """
        return self.api(
            self.papi.sr_policy_del,
            {'bsid_addr': bsid_addr,
             'sr_policy_index': sr_policy_index
             })

    def sr_steering_add_del(
            self,
            is_del,
            bsid_addr,
            sr_policy_index,
            table_id,
            prefix_addr,
            mask_width,
            sw_if_index,
            traffic_type):
        """
        Steer traffic L2 and L3 traffic through a given SR policy

        :param is_del: delete or add
        :param bsid_addr: bindingSID of the SR Policy (alt to sr_policy_index)
        :param sr_policy: is the index of the SR Policy (alt to bsid)
        :param table_id: is the VRF where to install the FIB entry for the BSID
        :param prefix_addr: is the IPv4/v6 address for L3 traffic type
        :param mask_width: is the mask for L3 traffic type
        :param sw_if_index: is the incoming interface for L2 traffic
        :param traffic_type: type of traffic (IPv4: 4, IPv6: 6, L2: 2)
        """
        return self.api(
            self.papi.sr_steering_add_del,
            {'is_del': is_del,
             'bsid_addr': bsid_addr,
             'sr_policy_index': sr_policy_index,
             'table_id': table_id,
             'prefix_addr': prefix_addr,
             'mask_width': mask_width,
             'sw_if_index': sw_if_index,
             'traffic_type': traffic_type
             })

    def acl_add_replace(self, acl_index, r, tag='',
                        expected_retval=0):
        """Add/replace an ACL
        :param int acl_index: ACL index to replace, 2^32-1 to create new ACL.
        :param acl_rule r: ACL rules array.
        :param str tag: symbolic tag (description) for this ACL.
        :param int count: number of rules.
        """
        return self.api(self.papi.acl_add_replace,
                        {'acl_index': acl_index,
                         'r': r,
                         'count': len(r),
                         'tag': tag},
                        expected_retval=expected_retval)

    def acl_del(self, acl_index, expected_retval=0):
        """

        :param acl_index:
        :return:
        """
        return self.api(self.papi.acl_del,
                        {'acl_index': acl_index},
                        expected_retval=expected_retval)

    def acl_interface_set_acl_list(self, sw_if_index, n_input, acls,
                                   expected_retval=0):
        return self.api(self.papi.acl_interface_set_acl_list,
                        {'sw_if_index': sw_if_index,
                         'count': len(acls),
                         'n_input': n_input,
                         'acls': acls},
                        expected_retval=expected_retval)

    def acl_interface_set_etype_whitelist(self, sw_if_index,
                                          n_input, whitelist,
                                          expected_retval=0):
        return self.api(self.papi.acl_interface_set_etype_whitelist,
                        {'sw_if_index': sw_if_index,
                         'count': len(whitelist),
                         'n_input': n_input,
                         'whitelist': whitelist},
                        expected_retval=expected_retval)

    def acl_interface_add_del(self,
                              sw_if_index,
                              acl_index,
                              is_add=1):
        """ Add/Delete ACL to/from interface

        :param sw_if_index:
        :param acl_index:
        :param is_add:  (Default value = 1)
        """

        return self.api(self.papi.acl_interface_add_del,
                        {'is_add': is_add,
                         'is_input': 1,
                         'sw_if_index': sw_if_index,
                         'acl_index': acl_index})

    def acl_dump(self, acl_index, expected_retval=0):
        return self.api(self.papi.acl_dump,
                        {'acl_index': acl_index},
                        expected_retval=expected_retval)

    def acl_interface_list_dump(self, sw_if_index=0xFFFFFFFF,
                                expected_retval=0):
        return self.api(self.papi.acl_interface_list_dump,
                        {'sw_if_index': sw_if_index},
                        expected_retval=expected_retval)

    def macip_acl_add(self, rules, tag=""):
        """ Add MACIP acl

        :param rules: list of rules for given acl
        :param tag: acl tag
        """

        return self.api(self.papi.macip_acl_add,
                        {'r': rules,
                         'count': len(rules),
                         'tag': tag})

    def macip_acl_add_replace(self, rules, acl_index=0xFFFFFFFF, tag=""):
        """ Add MACIP acl

        :param rules: list of rules for given acl
        :param tag: acl tag
        """

        return self.api(self.papi.macip_acl_add_replace,
                        {'acl_index': acl_index,
                         'r': rules,
                         'count': len(rules),
                         'tag': tag})

    def macip_acl_del(self, acl_index):
        """

        :param acl_index:
        :return:
        """
        return self.api(self.papi.macip_acl_del,
                        {'acl_index': acl_index})

    def macip_acl_interface_add_del(self,
                                    sw_if_index,
                                    acl_index,
                                    is_add=1):
        """ Add MACIP acl to interface

        :param sw_if_index:
        :param acl_index:
        :param is_add:  (Default value = 1)
        """

        return self.api(self.papi.macip_acl_interface_add_del,
                        {'is_add': is_add,
                         'sw_if_index': sw_if_index,
                         'acl_index': acl_index})

    def macip_acl_interface_get(self):
        """ Return interface acls dump
        """
        return self.api(
            self.papi.macip_acl_interface_get, {})

    def macip_acl_dump(self, acl_index=4294967295):
        """ Return MACIP acl dump
        """

        return self.api(
            self.papi.macip_acl_dump, {'acl_index': acl_index})

    def policer_add_del(self,
                        name,
                        cir,
                        eir,
                        cb,
                        eb,
                        is_add=1,
                        rate_type=0,
                        round_type=0,
                        ptype=0,
                        color_aware=0,
                        conform_action_type=1,
                        conform_dscp=0,
                        exceed_action_type=0,
                        exceed_dscp=0,
                        violate_action_type=0,
                        violate_dscp=0):
        return self.api(self.papi.policer_add_del,
                        {'name': name,
                         'cir': cir,
                         'eir': eir,
                         'cb': cb,
                         'eb': eb,
                         'is_add': is_add,
                         'rate_type': rate_type,
                         'round_type': round_type,
                         'type': ptype,
                         'color_aware': color_aware,
                         'conform_action_type': conform_action_type,
                         'conform_dscp': conform_dscp,
                         'exceed_action_type': exceed_action_type,
                         'exceed_dscp': exceed_dscp,
                         'violate_action_type': violate_action_type,
                         'violate_dscp': violate_dscp})

    def ip_punt_police(self,
                       policer_index,
                       is_ip6=0,
                       is_add=1):
        return self.api(self.papi.ip_punt_police,
                        {'policer_index': policer_index,
                         'is_add': is_add,
                         'is_ip6': is_ip6})

    def ip_punt_redirect(self,
                         rx_sw_if_index,
                         tx_sw_if_index,
                         address,
                         is_add=1):
        return self.api(self.papi.ip_punt_redirect,
                        {'punt': {'rx_sw_if_index': rx_sw_if_index,
                                  'tx_sw_if_index': tx_sw_if_index,
                                  'nh': address},
                         'is_add': is_add})

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

    def bier_table_add_del(self,
                           bti,
                           mpls_label,
                           is_add=1):
        """ BIER Table add/del """
        return self.api(
            self.papi.bier_table_add_del,
            {'bt_tbl_id': {"bt_set": bti.set_id,
                           "bt_sub_domain": bti.sub_domain_id,
                           "bt_hdr_len_id": bti.hdr_len_id},
             'bt_label': mpls_label,
             'bt_is_add': is_add})

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

    def bier_route_add_del(self,
                           bti,
                           bp,
                           paths,
                           is_add=1,
                           is_replace=0):
        """ BIER Route add/del """
        return self.api(
            self.papi.bier_route_add_del,
            {'br_tbl_id': {"bt_set": bti.set_id,
                           "bt_sub_domain": bti.sub_domain_id,
                           "bt_hdr_len_id": bti.hdr_len_id},
             'br_bp': bp,
             'br_n_paths': len(paths),
             'br_paths': paths,
             'br_is_add': is_add,
             'br_is_replace': is_replace})

    def bier_route_dump(self, bti):
        return self.api(
            self.papi.bier_route_dump,
            {'br_tbl_id': {"bt_set": bti.set_id,
                           "bt_sub_domain": bti.sub_domain_id,
                           "bt_hdr_len_id": bti.hdr_len_id}})

    def bier_imp_add(self,
                     bti,
                     src,
                     ibytes,
                     is_add=1):
        """ BIER Imposition Add """
        return self.api(
            self.papi.bier_imp_add,
            {'bi_tbl_id': {"bt_set": bti.set_id,
                           "bt_sub_domain": bti.sub_domain_id,
                           "bt_hdr_len_id": bti.hdr_len_id},
             'bi_src': src,
             'bi_n_bytes': len(ibytes),
             'bi_bytes': ibytes})

    def bier_imp_del(self, bi_index):
        """ BIER Imposition del """
        return self.api(
            self.papi.bier_imp_del,
            {'bi_index': bi_index})

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

    def bier_disp_table_add_del(self,
                                bdti,
                                is_add=1):
        """ BIER Disposition Table add/del """
        return self.api(
            self.papi.bier_disp_table_add_del,
            {'bdt_tbl_id': bdti,
             'bdt_is_add': is_add})

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

    def bier_disp_entry_add_del(self,
                                bdti,
                                bp,
                                payload_proto,
                                next_hop_afi,
                                next_hop,
                                next_hop_tbl_id=0,
                                next_hop_rpf_id=~0,
                                next_hop_is_ip4=1,
                                is_add=1):
        """ BIER Route add/del """
        lstack = []
        while (len(lstack) < 16):
            lstack.append({})
        return self.api(
            self.papi.bier_disp_entry_add_del,
            {'bde_tbl_id': bdti,
             'bde_bp': bp,
             'bde_payload_proto': payload_proto,
             'bde_n_paths': 1,
             'bde_paths': [{'next_hop': next_hop,
                            'table_id': next_hop_tbl_id,
                            'afi': next_hop_afi,
                            'rpf_id': next_hop_rpf_id,
                            'n_labels': 0,
                            'label_stack': lstack}],
             'bde_is_add': is_add})

    def bier_disp_entry_dump(self, bdti):
        return self.api(
            self.papi.bier_disp_entry_dump,
            {'bde_tbl_id': bdti})

    def add_node_next(self, node_name, next_name):
        """ Set the next node for a given node request

        :param node_name:
        :param next_name:
        """
        return self.api(self.papi.add_node_next,
                        {'node_name': node_name,
                         'next_name': next_name})

    def session_enable_disable(self, is_enabled):
        return self.api(
            self.papi.session_enable_disable,
            {'is_enable': is_enabled})

    def ipsec_spd_add_del(self, spd_id, is_add=1):
        """ SPD add/del - Wrapper to add or del ipsec SPD
        Sample CLI : 'ipsec spd add 1'

        :param spd_id - SPD ID to be created in the vpp . mandatory
        :param is_add - create (1) or delete(0) SPD (Default 1 - add) .
              optional
        :returns: reply from the API
        """
        return self.api(
            self.papi.ipsec_spd_add_del, {
                'spd_id': spd_id, 'is_add': is_add})

    def ipsec_interface_add_del_spd(self, spd_id, sw_if_index, is_add=1):
        """ IPSEC interface SPD add/del - \
             Wrapper to associate/disassociate SPD to interface in VPP
        Sample CLI : 'set interface ipsec spd GigabitEthernet0/6/0 1'

        :param spd_id - SPD ID to associate with the interface . mandatory
        :param sw_if_index - Interface Index which needs to ipsec \
            association mandatory
        :param is_add - add(1) or del(0) association with interface \
                (Default 1 - add) . optional
        :returns: reply from the API
        """
        return self.api(
            self.papi.ipsec_interface_add_del_spd,
            {'spd_id': spd_id, 'sw_if_index': sw_if_index, 'is_add': is_add})

    def ipsec_sad_add_del_entry(self,
                                sad_id,
                                spi,
                                integrity_algorithm,
                                integrity_key,
                                crypto_algorithm,
                                crypto_key,
                                protocol,
                                tunnel_src_address='',
                                tunnel_dst_address='',
                                is_tunnel=1,
                                is_tunnel_ipv6=0,
                                is_add=1,
                                udp_encap=0,
                                use_anti_replay=0,
                                use_extended_sequence_number=0):
        """ IPSEC SA add/del
        :param sad_id: security association ID
        :param spi: security param index of the SA in decimal
        :param integrity_algorithm:
        :param integrity_key:
        :param crypto_algorithm:
        :param crypto_key:
        :param protocol: AH(0) or ESP(1) protocol
        :param tunnel_src_address: tunnel mode outer src address
        :param tunnel_dst_address: tunnel mode outer dst address
        :param is_add:
        :param is_tunnel:
        :** reference /vpp/src/vnet/ipsec/ipsec.h file for enum values of
             crypto and ipsec algorithms
        """
        return self.api(
            self.papi.ipsec_sad_add_del_entry,
            {'sad_id': sad_id,
             'spi': spi,
             'tunnel_src_address': tunnel_src_address,
             'tunnel_dst_address': tunnel_dst_address,
             'protocol': protocol,
             'integrity_algorithm': integrity_algorithm,
             'integrity_key_length': len(integrity_key),
             'integrity_key': integrity_key,
             'crypto_algorithm': crypto_algorithm,
             'crypto_key_length': len(crypto_key) if crypto_key is not None
             else 0,
             'crypto_key': crypto_key,
             'is_add': is_add,
             'is_tunnel': is_tunnel,
             'is_tunnel_ipv6': is_tunnel_ipv6,
             'udp_encap': udp_encap,
             'use_extended_sequence_number': use_extended_sequence_number,
             'use_anti_replay': use_anti_replay})

    def ipsec_spd_add_del_entry(self,
                                spd_id,
                                sa_id,
                                local_address_start,
                                local_address_stop,
                                remote_address_start,
                                remote_address_stop,
                                local_port_start=0,
                                local_port_stop=65535,
                                remote_port_start=0,
                                remote_port_stop=65535,
                                protocol=0,
                                policy=0,
                                priority=100,
                                is_outbound=1,
                                is_add=1,
                                is_ipv6=0,
                                is_ip_any=0):
        """ IPSEC policy SPD add/del   -
                    Wrapper to configure ipsec SPD policy entries in VPP
        :param spd_id: SPD ID for the policy
        :param local_address_start: local-ip-range start address
        :param local_address_stop : local-ip-range stop address
        :param remote_address_start: remote-ip-range start address
        :param remote_address_stop : remote-ip-range stop address
        :param local_port_start: (Default value = 0)
        :param local_port_stop: (Default value = 65535)
        :param remote_port_start: (Default value = 0)
        :param remote_port_stop: (Default value = 65535)
        :param protocol: Any(0), AH(51) & ESP(50) protocol (Default value = 0)
        :param sa_id: Security Association ID for mapping it to SPD
        :param policy: bypass(0), discard(1), resolve(2) or protect(3) action
               (Default value = 0)
        :param priority: value for the spd action (Default value = 100)
        :param is_outbound: flag for inbound(0) or outbound(1)
               (Default value = 1)
        :param is_add: (Default value = 1)
        """
        return self.api(
            self.papi.ipsec_spd_add_del_entry,
            {'spd_id': spd_id,
             'sa_id': sa_id,
             'local_address_start': local_address_start,
             'local_address_stop': local_address_stop,
             'remote_address_start': remote_address_start,
             'remote_address_stop': remote_address_stop,
             'local_port_start': local_port_start,
             'local_port_stop': local_port_stop,
             'remote_port_start': remote_port_start,
             'remote_port_stop': remote_port_stop,
             'is_add': is_add,
             'protocol': protocol,
             'policy': policy,
             'priority': priority,
             'is_outbound': is_outbound,
             'is_ipv6': is_ipv6,
             'is_ip_any': is_ip_any})

    def ipsec_tunnel_if_add_del(self, local_ip, remote_ip, local_spi,
                                remote_spi, crypto_alg, local_crypto_key,
                                remote_crypto_key, integ_alg, local_integ_key,
                                remote_integ_key, is_add=1, esn=0,
                                anti_replay=1, renumber=0, show_instance=0):
        return self.api(
            self.papi.ipsec_tunnel_if_add_del,
            {'local_ip': local_ip, 'remote_ip': remote_ip,
             'local_spi': local_spi, 'remote_spi': remote_spi,
             'crypto_alg': crypto_alg,
             'local_crypto_key_len': len(local_crypto_key),
             'local_crypto_key': local_crypto_key,
             'remote_crypto_key_len': len(remote_crypto_key),
             'remote_crypto_key': remote_crypto_key, 'integ_alg': integ_alg,
             'local_integ_key_len': len(local_integ_key),
             'local_integ_key': local_integ_key,
             'remote_integ_key_len': len(remote_integ_key),
             'remote_integ_key': remote_integ_key, 'is_add': is_add,
             'esn': esn, 'anti_replay': anti_replay, 'renumber': renumber,
             'show_instance': show_instance
             })

    def ipsec_select_backend(self, protocol, index):
        return self.api(self.papi.ipsec_select_backend,
                        {'protocol': protocol, 'index': index})

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

    def app_namespace_add(self,
                          namespace_id,
                          ip4_fib_id=0,
                          ip6_fib_id=0,
                          sw_if_index=0xFFFFFFFF,
                          secret=0):
        return self.api(
            self.papi.app_namespace_add_del,
            {'secret': secret,
             'sw_if_index': sw_if_index,
             'ip4_fib_id': ip4_fib_id,
             'ip6_fib_id': ip6_fib_id,
             'namespace_id': namespace_id,
             'namespace_id_len': len(namespace_id)})

    def punt_socket_register(self, port, pathname, protocol=0x11,
                             header_version=1, is_ip4=1):
        """ Register punt socket """
        return self.api(self.papi.punt_socket_register,
                        {'header_version': header_version,
                         'punt': {'ipv': is_ip4,
                                  'l4_protocol': protocol,
                                  'l4_port': port},
                         'pathname': pathname})

    def punt_socket_deregister(self, port, protocol=0x11, is_ip4=1):
        """ Unregister punt socket """
        return self.api(self.papi.punt_socket_deregister,
                        {'punt': {'ipv': is_ip4,
                                  'l4_protocol': protocol,
                                  'l4_port': port}})

    def punt_socket_dump(self, is_ip6=1):
        """ Dump punt socket"""
        return self.api(self.papi.punt_socket_dump,
                        {'is_ipv6': is_ip6})

    def ip_reassembly_set(self, timeout_ms, max_reassemblies,
                          expire_walk_interval_ms, is_ip6=0):
        """ Set IP reassembly parameters """
        return self.api(self.papi.ip_reassembly_set,
                        {'is_ip6': is_ip6,
                         'timeout_ms': timeout_ms,
                         'expire_walk_interval_ms': expire_walk_interval_ms,
                         'max_reassemblies': max_reassemblies})

    def ip_reassembly_get(self, is_ip6=0):
        """ Get IP reassembly parameters """
        return self.api(self.papi.ip_reassembly_get, {'is_ip6': is_ip6})

    def ip_reassembly_enable_disable(self, sw_if_index, enable_ip4=False,
                                     enable_ip6=False):
        """ Enable/disable IP reassembly """
        return self.api(self.papi.ip_reassembly_enable_disable,
                        {'sw_if_index': sw_if_index,
                         'enable_ip4': 1 if enable_ip4 else 0,
                         'enable_ip6': 1 if enable_ip6 else 0,
                         })

    def gbp_endpoint_add(self, sw_if_index, ips, mac, epg, flags,
                         tun_src, tun_dst):
        """ GBP endpoint Add """
        return self.api(self.papi.gbp_endpoint_add,
                        {'endpoint': {
                            'sw_if_index': sw_if_index,
                            'flags': 0,
                            'ips': ips,
                            'n_ips': len(ips),
                            'mac': mac,
                            'epg_id': epg,
                            'flags': flags,
                            'tun': {
                                'src': tun_src,
                                'dst': tun_dst,
                            }}})

    def gbp_endpoint_del(self, handle):
        """ GBP endpoint Del """
        return self.api(self.papi.gbp_endpoint_del,
                        {'handle': handle})

    def gbp_endpoint_dump(self):
        """ GBP endpoint Dump """
        return self.api(self.papi.gbp_endpoint_dump,
                        {'_no_type_conversion': True})

    def gbp_endpoint_group_add(self, epg, bd,
                               rd, uplink_sw_if_index):
        """ GBP endpoint group Add """
        return self.api(self.papi.gbp_endpoint_group_add,
                        {'epg':
                         {
                             'uplink_sw_if_index': uplink_sw_if_index,
                             'bd_id': bd,
                             'rd_id': rd,
                             'epg_id': epg
                         }})

    def gbp_endpoint_group_del(self, epg):
        """ GBP endpoint group Del """
        return self.api(self.papi.gbp_endpoint_group_del,
                        {'epg_id': epg})

    def gbp_endpoint_group_dump(self):
        """ GBP endpoint group Dump """
        return self.api(self.papi.gbp_endpoint_group_dump, {})

    def gbp_bridge_domain_add(self, bd_id, flags,
                              bvi_sw_if_index,
                              uu_fwd_sw_if_index):
        """ GBP bridge-domain Add """
        return self.api(self.papi.gbp_bridge_domain_add,
                        {'bd':
                         {
                             'flags': flags,
                             'bvi_sw_if_index': bvi_sw_if_index,
                             'uu_fwd_sw_if_index': uu_fwd_sw_if_index,
                             'bd_id': bd_id
                         }})

    def gbp_bridge_domain_del(self, bd_id):
        """ GBP bridge-domain Del """
        return self.api(self.papi.gbp_bridge_domain_del,
                        {'bd_id': bd_id})

    def gbp_bridge_domain_dump(self):
        """ GBP Bridge Domain Dump """
        return self.api(self.papi.gbp_bridge_domain_dump, {})

    def gbp_route_domain_add(self, rd_id,
                             ip4_table_id,
                             ip6_table_id,
                             ip4_uu_sw_if_index,
                             ip6_uu_sw_if_index):
        """ GBP route-domain Add """
        return self.api(self.papi.gbp_route_domain_add,
                        {'rd':
                         {
                             'ip4_table_id': ip4_table_id,
                             'ip6_table_id': ip6_table_id,
                             'ip4_uu_sw_if_index': ip4_uu_sw_if_index,
                             'ip6_uu_sw_if_index': ip6_uu_sw_if_index,
                             'rd_id': rd_id
                         }})

    def gbp_route_domain_del(self, rd_id):
        """ GBP route-domain Del """
        return self.api(self.papi.gbp_route_domain_del,
                        {'rd_id': rd_id})

    def gbp_route_domain_dump(self):
        """ GBP Route Domain Dump """
        return self.api(self.papi.gbp_route_domain_dump, {})

    def gbp_recirc_add_del(self, is_add, sw_if_index, epg, is_ext):
        """ GBP recirc Add/Del """
        return self.api(self.papi.gbp_recirc_add_del,
                        {'is_add': is_add,
                         'recirc': {
                             'is_ext': is_ext,
                             'sw_if_index': sw_if_index,
                             'epg_id': epg}})

    def gbp_recirc_dump(self):
        """ GBP recirc Dump """
        return self.api(self.papi.gbp_recirc_dump, {})

    def gbp_ext_itf_add_del(self, is_add, sw_if_index, bd_id, rd_id):
        """ GBP recirc Add/Del """
        return self.api(self.papi.gbp_ext_itf_add_del,
                        {'is_add': is_add,
                         'ext_itf': {
                             'sw_if_index': sw_if_index,
                             'bd_id': bd_id,
                             'rd_id': rd_id}})

    def gbp_ext_itf_dump(self):
        """ GBP recirc Dump """
        return self.api(self.papi.gbp_ext_itf_dump, {})

    def gbp_subnet_add_del(self, is_add, rd_id,
                           prefix, type,
                           sw_if_index=0xffffffff,
                           epg_id=0xffff):
        """ GBP Subnet Add/Del """
        return self.api(self.papi.gbp_subnet_add_del,
                        {'is_add': is_add,
                         'subnet': {
                             'type': type,
                             'sw_if_index': sw_if_index,
                             'epg_id': epg_id,
                             'prefix': prefix,
                             'rd_id': rd_id}})

    def gbp_subnet_dump(self):
        """ GBP Subnet Dump """
        return self.api(self.papi.gbp_subnet_dump,
                        {'_no_type_conversion': True})

    def gbp_contract_add_del(self, is_add, src_epg, dst_epg, acl_index, rules):
        """ GBP contract Add/Del """
        return self.api(self.papi.gbp_contract_add_del,
                        {'is_add': is_add,
                         'contract': {
                             'acl_index': acl_index,
                             'src_epg': src_epg,
                             'dst_epg': dst_epg,
                             'n_rules': len(rules),
                             'rules': rules}})

    def gbp_contract_dump(self):
        """ GBP contract Dump """
        return self.api(self.papi.gbp_contract_dump, {})

    def gbp_endpoint_learn_set_inactive_threshold(self, threshold):
        """ GBP set inactive threshold """
        return self.api(self.papi.gbp_endpoint_learn_set_inactive_threshold,
                        {'threshold': threshold})

    def gbp_vxlan_tunnel_add(self, vni, bd_rd_id, mode):
        """ GBP VXLAN tunnel add """
        return self.api(self.papi.gbp_vxlan_tunnel_add,
                        {
                            'tunnel': {
                                'vni': vni,
                                'mode': mode,
                                'bd_rd_id': bd_rd_id
                            }
                        })

    def gbp_vxlan_tunnel_del(self, vni):
        """ GBP VXLAN tunnel del """
        return self.api(self.papi.gbp_vxlan_tunnel_del,
                        {
                            'vni': vni,
                        })

    def gbp_vxlan_tunnel_dump(self):
        """ GBP VXLAN tunnel add/del """
        return self.api(self.papi.gbp_vxlan_tunnel_dump, {})

    def ipip_6rd_add_tunnel(self, ip6_table_id, ip6_prefix, ip6_prefix_len,
                            ip4_table_id, ip4_prefix, ip4_prefix_len, ip4_src,
                            security_check):
        """ 6RD tunnel Add """
        return self.api(self.papi.ipip_6rd_add_tunnel,
                        {'ip4_table_id': ip4_table_id,
                         'ip6_table_id': ip6_table_id,
                         'ip6_prefix': ip6_prefix,
                         'ip6_prefix_len': ip6_prefix_len,
                         'ip4_prefix': ip4_prefix,
                         'ip4_prefix_len': ip4_prefix_len,
                         'ip4_src': ip4_src,
                         'security_check': security_check})

    def ipip_6rd_del_tunnel(self, sw_if_index):
        """ 6RD tunnel Delete """
        return self.api(self.papi.ipip_6rd_del_tunnel,
                        {'sw_if_index': sw_if_index})

    def ipip_add_tunnel(self, src_address, dst_address, is_ipv6=1,
                        instance=0xFFFFFFFF, table_id=0, tc_tos=0):
        """ IPIP tunnel Add/Del """
        return self.api(self.papi.ipip_add_tunnel,
                        {'is_ipv6': is_ipv6,
                         'instance': instance,
                         'src_address': src_address,
                         'dst_address': dst_address,
                         'table_id': table_id,
                         'tc_tos': tc_tos})

    def ipip_del_tunnel(self, sw_if_index):
        """ IPIP tunnel Delete """
        return self.api(self.papi.ipip_del_tunnel,
                        {'sw_if_index': sw_if_index})

    def qos_egress_map_update(self, id, outputs):
        """ QOS egress map update """
        return self.api(self.papi.qos_egress_map_update,
                        {'map_id': id,
                         'rows': outputs})

    def qos_egress_map_delete(self, id):
        """ QOS egress map delete """
        return self.api(self.papi.qos_egress_map_delete,
                        {'map_id': id})

    def qos_mark_enable_disable(self, sw_if_index,
                                output_source,
                                map_id,
                                enable):
        """ QOS Mark Enable/Disable """
        return self.api(self.papi.qos_mark_enable_disable,
                        {'map_id': map_id,
                         'sw_if_index': sw_if_index,
                         'output_source': output_source,
                         'enable': enable})

    def qos_record_enable_disable(self, sw_if_index, input_source, enable):
        """ IP QoS recording Enble/Disable """
        return self.api(self.papi.qos_record_enable_disable,
                        {'sw_if_index': sw_if_index,
                         'input_source': input_source,
                         'enable': enable})

    def igmp_enable_disable(self, sw_if_index, enable, host):
        """ Enable/disable IGMP on a given interface """
        return self.api(self.papi.igmp_enable_disable,
                        {'enable': enable,
                         'mode': host,
                         'sw_if_index': sw_if_index})

    def igmp_proxy_device_add_del(self, vrf_id, sw_if_index, add):
        """ Add/del IGMP proxy device """
        return self.api(self.papi.igmp_proxy_device_add_del,
                        {'vrf_id': vrf_id, 'sw_if_index': sw_if_index,
                         'add': add})

    def igmp_proxy_device_add_del_interface(self, vrf_id, sw_if_index, add):
        """ Add/del interface to/from IGMP proxy device """
        return self.api(self.papi.igmp_proxy_device_add_del_interface,
                        {'vrf_id': vrf_id, 'sw_if_index': sw_if_index,
                         'add': add})

    def igmp_listen(self, filter, sw_if_index, saddrs, gaddr):
        """ Listen for new (S,G) on specified interface

        :param enable: add/del
        :param sw_if_index: interface sw index
        :param saddr: source ip4 addr
        :param gaddr: group ip4 addr
        """
        return self.api(self.papi.igmp_listen,
                        {
                            'group':
                            {
                                'filter': filter,
                                'sw_if_index': sw_if_index,
                                'n_srcs': len(saddrs),
                                'saddrs': saddrs,
                                'gaddr':  gaddr
                            }
                        })

    def igmp_dump(self, sw_if_index=None):
        """ Dump all (S,G) interface configurations """
        if sw_if_index is None:
            sw_if_index = 0xffffffff
        return self.api(self.papi.igmp_dump,
                        {'sw_if_index': sw_if_index})

    def igmp_clear_interface(self, sw_if_index):
        """ Remove all (S,G)s from specified interface
            doesn't send IGMP report!
        """
        return self.api(
            self.papi.igmp_clear_interface, {
                'sw_if_index': sw_if_index})

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

    def bond_create(
            self,
            mode,
            lb,
            use_custom_mac,
            mac_address=''):
        """
        :param mode: mode
        :param lb: load balance
        :param use_custom_mac: use custom mac
        :param mac_address: mac address
        """
        return self.api(
            self.papi.bond_create,
            {'mode': mode,
             'lb': lb,
             'use_custom_mac': use_custom_mac,
             'mac_address': mac_address
             })

    def bond_delete(
            self,
            sw_if_index):
        """
        :param sw_if_index: interface the operation is applied to
        """
        return self.api(self.papi.bond_delete,
                        {'sw_if_index': sw_if_index})

    def bond_enslave(
            self,
            sw_if_index,
            bond_sw_if_index,
            is_passive,
            is_long_timeout):
        """
        :param sw_if_index: slave sw_if_index
        :param bond_sw_if_index: bond sw_if_index
        :param is_passive: is passive lacp speaker
        :param is_long_time: 90 seconds timeout instead of 3 seconds timeout
        """
        return self.api(
            self.papi.bond_enslave,
            {'sw_if_index': sw_if_index,
             'bond_sw_if_index': bond_sw_if_index,
             'is_passive': is_passive,
             'is_long_timeout': is_long_timeout
             })

    def bond_detach_slave(
            self,
            sw_if_index):
        """
        :param sw_if_index: slave interface the operation is applied to
        """
        return self.api(self.papi.bond_detach_slave,
                        {'sw_if_index': sw_if_index})

    def sw_interface_slave_dump(
            self,
            sw_if_index):
        """
        :param sw_if_index: bond sw_if_index
        """
        return self.api(self.papi.sw_interface_slave_dump,
                        {'sw_if_index': sw_if_index})

    def sw_interface_bond_dump(
            self):
        """

        """
        return self.api(self.papi.sw_interface_bond_dump,
                        {})

    def create_vhost_user_if(
            self,
            is_server,
            sock_filename,
            renumber,
            disable_mrg_rxbuf,
            disable_indirect_desc,
            custom_dev_instance,
            use_custom_mac,
            mac_address,
            tag=''):
        """
        :param is_server: is server
        :param sock_filename: socket name
        :param renumber: renumber
        :param disable_mrg_rxbuf: disable mergable rx buffers
        :param disable_indirect_desc: disable indirect descriptors
        :param custom_dev_instance: custom dev instance
        :param use_custom_mac: use custom mac
        :param mac_address: mac address
        :param tag: tag (default '')
        """
        return self.api(
            self.papi.create_vhost_user_if,
            {'is_server': is_server,
             'sock_filename': sock_filename,
             'renumber': renumber,
             'disable_mrg_rxbuf': disable_mrg_rxbuf,
             'disable_indirect_desc': disable_indirect_desc,
             'custom_dev_instance': custom_dev_instance,
             'use_custom_mac': use_custom_mac,
             'mac_address': mac_address,
             'tag': tag
             })

    def delete_vhost_user_if(
            self,
            sw_if_index):
        """
        :param sw_if_index: interface the operation is applied to
        """
        return self.api(self.papi.delete_vhost_user_if,
                        {'sw_if_index': sw_if_index, })

    def sw_interface_vhost_user_dump(
            self):
        """

        """
        return self.api(self.papi.sw_interface_vhost_user_dump,
                        {})

    def abf_policy_add_del(self, is_add, policy):
        return self.api(
            self.papi.abf_policy_add_del,
            {'is_add': is_add,
             'policy': policy})

    def abf_itf_attach_add_del(self, is_add, attach):
        return self.api(
            self.papi.abf_itf_attach_add_del,
            {'is_add': is_add,
             'attach': attach})

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

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

    def pipe_create(self, is_specified, user_instance):
        return self.api(self.papi.pipe_create,
                        {'is_specified': is_specified,
                         'user_instance': user_instance})

    def pipe_delete(self, parent_sw_if_index):
        return self.api(self.papi.pipe_delete,
                        {'parent_sw_if_index': parent_sw_if_index})

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

    def memif_create(
            self,
            role,
            mode,
            rx_queues=None,
            tx_queues=None,
            _id=None,
            socket_id=None,
            secret=None,
            ring_size=None,
            buffer_size=None,
            hw_addr=None):
        return self.api(self.papi.memif_create,
                        {'role': role,
                         'mode': mode,
                         'rx_queues': rx_queues,
                         'tx_queues': tx_queues,
                         'id': _id,
                         'socket_id': socket_id,
                         'secret': secret,
                         'ring_size': ring_size,
                         'buffer_size': buffer_size,
                         'hw_addr': hw_addr})

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

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

    def memif_socket_filename_add_del(
            self, is_add, socket_id, socket_filename):
        return self.api(
            self.papi.memif_socket_filename_add_del,
            {'is_add': is_add,
             'socket_id': socket_id,
             'socket_filename': socket_filename})

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

    def svs_table_add_del(self, af, table_id, is_add=1):
        return self.api(self.papi.svs_table_add_del,
                        {
                            'table_id': table_id,
                            'is_add': is_add,
                            'af': af,
                        })

    def svs_route_add_del(self, table_id, prefix, src_table_id, is_add=1):
        return self.api(self.papi.svs_route_add_del,
                        {
                            'table_id': table_id,
                            'source_table_id': src_table_id,
                            'prefix': prefix,
                            'is_add': is_add,
                        })

    def svs_enable_disable(self, af, table_id, sw_if_index, is_enable=1):
        return self.api(self.papi.svs_enable_disable,
                        {
                            'af': af,
                            'table_id': table_id,
                            'sw_if_index': sw_if_index,
                            'is_enable': is_enable,
                        })

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

    def syslog_set_sender(
            self,
            collector,
            src,
            collector_port=514,
            vrf_id=0,
            max_msg_size=480):
        """Set syslog sender configuration

        :param collector: colector IP address
        :param src: source IP address
        :param collector_port: collector UDP port (Default value = 514)
        :param vrf_id: VRF id (Default value = 0)
        :param max_msg_size: maximum message length (Default value = 480)
        """
        return self.api(self.papi.syslog_set_sender,
                        {'collector_address': collector,
                         'src_address': src,
                         'collector_port': collector_port,
                         'vrf_id': vrf_id,
                         'max_msg_size': max_msg_size})

    def syslog_get_sender(self):
        """Return syslog sender configuration"""
        return self.api(self.papi.syslog_get_sender, {})

    def syslog_set_filter(self, severity):
        """Set syslog filter parameters

        :param severity: severity filter (specified severity and greater match)
        """
        return self.api(self.papi.syslog_set_filter, {'severity': severity})

    def syslog_get_filter(self):
        """Return syslog filter parameters"""
        return self.api(self.papi.syslog_get_filter, {})