aboutsummaryrefslogtreecommitdiffstats
path: root/epan/proto.h
blob: 6df43936d85a3b15cf230de7188bb2e99e1bd788 (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
/* proto.h
 * Definitions for protocol display
 *
 * Wireshark - Network traffic analyzer
 * By Gerald Combs <gerald@wireshark.org>
 * Copyright 1998 Gerald Combs
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */


/*! @file proto.h
    The protocol tree related functions.<BR>
    A protocol tree will hold all necessary data to display the whole dissected packet.
    Creating a protocol tree is done in a two stage process:
    A static part at program startup, and a dynamic part when the dissection with the real packet data is done.<BR>
    The "static" information is provided by creating a hf_register_info hf[] array, and register it using the
    proto_register_field_array() function. This is usually done at dissector registering.<BR>
    The "dynamic" information is added to the protocol tree by calling one of the proto_tree_add_...() functions,
    e.g. proto_tree_add_bytes().
*/

#ifndef __PROTO_H__
#define __PROTO_H__

#include <stdarg.h>

#include <glib.h>

#include <epan/wmem/wmem.h>

#include "ipv4.h"
#include "wsutil/nstime.h"
#include "time_fmt.h"
#include "tvbuff.h"
#include "value_string.h"
#include "tfs.h"
#include "packet_info.h"
#include "ftypes/ftypes.h"
#include "register.h"
#include "ws_symbol_export.h"
#include "ws_attributes.h"

#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */

/** @defgroup prototree The Protocol Tree
 *
 * Dissectors use proto_tree_add_* to add items to the protocol tree. In
 * most cases you'll want to use proto_tree_add_item().
 *
 * @{
 */

/** The header-field index for the special text pseudo-field. Exported by libwireshark.dll */
WS_DLL_PUBLIC int hf_text_only;

/** the maximum length of a protocol field string representation */
#define ITEM_LABEL_LENGTH	240

#define ITEM_LABEL_UNKNOWN_STR	"Unknown"

struct expert_field;

/** Make a const value_string[] look like a _value_string pointer, used to set header_field_info.strings */
#define VALS(x)	(const struct _value_string*)(x)

/** Make a const val64_string[] look like a _val64_string pointer, used to set header_field_info.strings */
#define VALS64(x)   (const struct _val64_string*)(x)

/** Something to satisfy checkAPIs when you have a pointer to a value_string_ext (e.g., one built with value_string_ext_new()) */
#define VALS_EXT_PTR(x) (x)

/** Make a const true_false_string[] look like a _true_false_string pointer, used to set header_field_info.strings */
#define TFS(x)	(const struct true_false_string*)(x)

typedef void (*custom_fmt_func_t)(gchar *, guint32);

typedef void (*custom_fmt_func_64_t)(gchar *, guint64);

/** Make a custom format function pointer look like a void pointer. Used to set header_field_info.strings.
 *
 * We cast to gsize first, which 1) is guaranteed to be wide enough to
 * hold a pointer and 2) lets us side-step warnings about casting function
 * pointers to 'void *'. This violates ISO C but should be fine on POSIX
 * and Windows.
 */
#define CF_FUNC(x) ((const void *) (gsize) (x))

/** Make a const range_string[] look like a _range_string pointer, used to set
 * header_field_info.strings */
#define RVALS(x) (const struct _range_string*)(x)

/** Cast a ft_framenum_type_t, used to set header_field_info.strings */
#define FRAMENUM_TYPE(x) GINT_TO_POINTER(x)

struct _protocol;

/** Structure for information about a protocol */
typedef struct _protocol protocol_t;

/** Function used for reporting errors in dissectors; it throws a
 * DissectorError exception, with the string passed as an argument
 * as the message for the exception, so that it can show up in
 * the Info column and the protocol tree.
 *
 * If that string is dynamically allocated, it should be allocated with
 * wmem_alloc() with wmem_packet_scope(); using wmem_strdup_printf() would work.
 *
 * If the WIRESHARK_ABORT_ON_DISSECTOR_BUG environment variable is set,
 * it will call abort(), instead, to make it easier to get a stack trace.
 *
 * @param message string to use as the message
 */
WS_DLL_PUBLIC WS_NORETURN void proto_report_dissector_bug(const char *message);

#define REPORT_DISSECTOR_BUG(message)  \
	proto_report_dissector_bug(message)

/** Macro used to provide a hint to static analysis tools.
 * (Currently only Visual C++.)
 */
#if _MSC_VER >= 1400
/* XXX - Is there a way to say "quit checking at this point"? */
#define __DISSECTOR_ASSERT_STATIC_ANALYSIS_HINT(expression) \
  ; __analysis_assume(expression);
#else
#define __DISSECTOR_ASSERT_STATIC_ANALYSIS_HINT(expression)
#endif

/** Macro used for assertions in dissectors; it doesn't abort, it just
 * throws a DissectorError exception, with the assertion failure
 * message as a parameter, so that it can show up in the protocol tree.
 *
 * NOTE: this should only be used to detect bugs in the dissector (e.g., logic
 * conditions that shouldn't happen).  It should NOT be used for showing
 * that a packet is malformed.  For that, use expert_infos instead.
 *
 * @param s expression to test in the assertion
 */

#define __DISSECTOR_ASSERT_STRINGIFY(s)	# s

#define __DISSECTOR_ASSERT(expression, file, lineno)  \
  (REPORT_DISSECTOR_BUG( \
    wmem_strdup_printf(wmem_packet_scope(), \
        "%s:%u: failed assertion \"%s\"", \
        file, lineno, __DISSECTOR_ASSERT_STRINGIFY(expression))))

#define __DISSECTOR_ASSERT_HINT(expression, file, lineno, hint)  \
  (REPORT_DISSECTOR_BUG( \
    wmem_strdup_printf(wmem_packet_scope(), \
        "%s:%u: failed assertion \"%s\" (%s)", \
        file, lineno, __DISSECTOR_ASSERT_STRINGIFY(expression), hint)))

#define DISSECTOR_ASSERT(expression)  \
  ((void) ((expression) ? (void)0 : \
   __DISSECTOR_ASSERT (expression, __FILE__, __LINE__))) \
   __DISSECTOR_ASSERT_STATIC_ANALYSIS_HINT(expression)

/**
 * Same as DISSECTOR_ASSERT(), but takes an extra 'hint' parameter that
 * can be used to provide information as to why the assertion might fail.
 *
 * @param expression expression to test in the assertion
 * @param hint message providing extra information
 */
#define DISSECTOR_ASSERT_HINT(expression, hint)  \
  ((void) ((expression) ? (void)0 : \
   __DISSECTOR_ASSERT_HINT (expression, __FILE__, __LINE__, hint))) \
   __DISSECTOR_ASSERT_STATIC_ANALYSIS_HINT(expression)

#if 0
/* win32: using a debug breakpoint (int 3) can be very handy while debugging,
 * as the assert handling of GTK/GLib is currently not very helpful */
#define DISSECTOR_ASSERT(expression)  \
{ if(!(expression)) _asm { int 3}; }
#endif

/** Same as DISSECTOR_ASSERT(), but will throw DissectorError exception
 * unconditionally, much like GLIB's g_assert_not_reached works.
 *
 * NOTE: this should only be used to detect bugs in the dissector (e.g., logic
 * conditions that shouldn't happen).  It should NOT be used for showing
 * that a packet is malformed.  For that, use expert_infos instead.
 *
 */
#define DISSECTOR_ASSERT_NOT_REACHED()  \
  (REPORT_DISSECTOR_BUG( \
    wmem_strdup_printf(wmem_packet_scope(), \
        "%s:%u: failed assertion \"DISSECTOR_ASSERT_NOT_REACHED\"", \
        __FILE__, __LINE__)))

/** Compare two integers.
 *
 * This is functionally the same as `DISSECTOR_ASSERT(a op b)` except that it
 * will display the values of a and b upon failure.
 *
 *     DISSECTOR_ASSERT_CMPINT(a, ==, b);
 *     DISSECTOR_ASSERT_CMPINT(min, <=, max);
 *
 * This function can currently compare values that fit inside a gint64.
 *
 * WARNING: The number of times the arguments are evaluated is undefined.  Do
 * not use expressions with side effects as arguments.
 *
 * @param a  The first integer.
 * @param op Any binary operator.
 * @param b  The second integer.
 * @param type the type operator
 * @param fmt the fmt operator
 */
#define __DISSECTOR_ASSERT_CMPINT(a, op, b, type, fmt) \
  (REPORT_DISSECTOR_BUG( \
    wmem_strdup_printf(wmem_packet_scope(), \
        "%s:%u: failed assertion " #a " " #op " " #b " (" fmt " " #op " " fmt ")", \
        __FILE__, __LINE__, (type)a, (type)b)))

#define DISSECTOR_ASSERT_CMPINT(a, op, b)  \
  ((void) ((a op b) ? (void)0 : \
   __DISSECTOR_ASSERT_CMPINT (a, op, b, gint64, "%" G_GINT64_MODIFIER "d"))) \
   __DISSECTOR_ASSERT_STATIC_ANALYSIS_HINT(a op b)

/** Like DISSECTOR_ASSERT_CMPINT() except the arguments are treated as
 * unsigned values.
 *
 * This function can currently compare values that fit inside a guint64.
 */
#define DISSECTOR_ASSERT_CMPUINT(a, op, b)  \
  ((void) ((a op b) ? (void)0 : \
   __DISSECTOR_ASSERT_CMPINT (a, op, b, guint64, "%" G_GINT64_MODIFIER "u"))) \
   __DISSECTOR_ASSERT_STATIC_ANALYSIS_HINT(a op b)

/** Like DISSECTOR_ASSERT_CMPUINT() except the values are displayed in
 * hexadecimal upon assertion failure.
 */
#define DISSECTOR_ASSERT_CMPUINTHEX(a, op, b)  \
  ((void) ((a op b) ? (void)0 : \
   __DISSECTOR_ASSERT_CMPINT (a, op, b, guint64, "0x%" G_GINT64_MODIFIER "X"))) \
  __DISSECTOR_ASSERT_STATIC_ANALYSIS_HINT(a op b)

/*
 * This is similar to DISSECTOR_ASSERT(hfinfo->type == type) except that
 * it will report the name of the field with the wrong type as well as
 * the type.
 *
 * @param hfinfo  The hfinfo for the field being tested
 * @param type    The type it's expected to have
 */
#define __DISSECTOR_ASSERT_FIELD_TYPE(hfinfo, t) \
  (REPORT_DISSECTOR_BUG( \
    wmem_strdup_printf(wmem_packet_scope(), \
        "%s:%u: field %s is not of type "#t, \
        __FILE__, __LINE__, (hfinfo)->abbrev)))

#define DISSECTOR_ASSERT_FIELD_TYPE(hfinfo, t)  \
  ((void) (((hfinfo)->type == t) ? (void)0 : \
   __DISSECTOR_ASSERT_FIELD_TYPE ((hfinfo), t))) \
   __DISSECTOR_ASSERT_STATIC_ANALYSIS_HINT((hfinfo)->type == t)

#define DISSECTOR_ASSERT_FIELD_TYPE_IS_INTEGRAL(hfinfo)  \
  ((void) ((IS_FT_INT((hfinfo)->type) || \
            IS_FT_UINT((hfinfo)->type)) ? (void)0 : \
   REPORT_DISSECTOR_BUG( \
     wmem_strdup_printf(wmem_packet_scope(), \
         "%s:%u: field %s is not of type FT_CHAR or an FT_{U}INTn type", \
         __FILE__, __LINE__, (hfinfo)->abbrev)))) \
   __DISSECTOR_ASSERT_STATIC_ANALYSIS_HINT(IS_FT_INT((hfinfo)->type) || \
                                           IS_FT_UINT((hfinfo)->type))

#define __DISSECTOR_ASSERT_FIELD_TYPE_IS_STRING(hfinfo) \
  (REPORT_DISSECTOR_BUG( \
    wmem_strdup_printf(wmem_packet_scope(), \
        "%s:%u: field %s is not of type FT_STRING, FT_STRINGZ, or FT_STRINGZPAD", \
        __FILE__, __LINE__, (hfinfo)->abbrev)))

#define DISSECTOR_ASSERT_FIELD_TYPE_IS_STRING(hfinfo)  \
  ((void) (((hfinfo)->type == FT_STRING || (hfinfo)->type == FT_STRINGZ || \
            (hfinfo)->type == FT_STRINGZPAD) ? (void)0 : \
   __DISSECTOR_ASSERT_FIELD_TYPE_IS_STRING ((hfinfo)))) \
   __DISSECTOR_ASSERT_STATIC_ANALYSIS_HINT((hfinfo)->type == FT_STRING || \
                                           (hfinfo)->type == FT_STRINGZ || \
                                           (hfinfo)->type == FT_STRINGZPAD)

#define __DISSECTOR_ASSERT_FIELD_TYPE_IS_TIME(hfinfo) \
  (REPORT_DISSECTOR_BUG( \
    wmem_strdup_printf(wmem_packet_scope(), \
        "%s:%u: field %s is not of type FT_ABSOLUTE_TIME or FT_RELATIVE_TIME", \
        __FILE__, __LINE__, (hfinfo)->abbrev)))

#define DISSECTOR_ASSERT_FIELD_TYPE_IS_TIME(hfinfo)  \
  ((void) (((hfinfo)->type == FT_ABSOLUTE_TIME || \
            (hfinfo)->type == FT_RELATIVE_TIME) ? (void)0 : \
   __DISSECTOR_ASSERT_FIELD_TYPE_IS_TIME ((hfinfo)))) \
   __DISSECTOR_ASSERT_STATIC_ANALYSIS_HINT((hfinfo)->type == FT_ABSOLUTE_TIME || \
                                           (hfinfo)->type == FT_RELATIVE_TIME)

/*
 * The encoding of a field of a particular type may involve more
 * than just whether it's big-endian or little-endian and its size.
 *
 * For integral values, that's it, as 99.9999999999999% of the machines
 * out there are 2's complement binary machines with 8-bit bytes,
 * so the protocols out there expect that and, for example, any Unisys
 * 2200 series machines out there just have to translate between 2's
 * complement and 1's complement (and nobody's put any IBM 709x's on
 * any networks lately :-)).
 *
 * However:
 *
 *	for floating-point numbers, in addition to IEEE decimal
 *	floating-point, there's also IBM System/3x0 and PDP-11/VAX
 *	floating-point - most protocols use IEEE binary, but DCE RPC
 *	can use other formats if that's what the sending host uses;
 *
 *	for character strings, there are various character encodings
 *	(various ISO 646 sets, ISO 8859/x, various other national
 *	standards, various DOS and Windows encodings, various Mac
 *	encodings, UTF-8, UTF-16, other extensions to ASCII, EBCDIC,
 *	etc.);
 *
 *	for absolute times, there's UNIX time_t, UNIX time_t followed
 *	by 32-bit microseconds, UNIX time_t followed by 32-bit
 *	nanoseconds, DOS date/time, Windows FILETIME, NTP time, etc..
 *
 * We might also, in the future, want to allow a field specifier to
 * indicate the encoding of the field, or at least its default
 * encoding, as most fields in most protocols always use the
 * same encoding (although that's not true of all fields, so we
 * still need to be able to specify that at run time).
 *
 * So, for now, we define ENC_BIG_ENDIAN and ENC_LITTLE_ENDIAN as
 * bit flags, to be combined, in the future, with other information
 * to specify the encoding in the last argument to
 * proto_tree_add_item(), and possibly to specify in a field
 * definition (e.g., ORed in with the type value).
 *
 * Currently, proto_tree_add_item() treats its last argument as a
 * Boolean - if it's zero, the field is big-endian, and if it's non-zero,
 * the field is little-endian - and other code in epan/proto.c does
 * the same.  We therefore define ENC_BIG_ENDIAN as 0x00000000 and
 * ENC_LITTLE_ENDIAN as 0x80000000 - we're using the high-order bit
 * so that we could put a field type and/or a value such as a character
 * encoding in the lower bits.
 */
#define ENC_BIG_ENDIAN		0x00000000
#define ENC_LITTLE_ENDIAN	0x80000000

#if G_BYTE_ORDER == G_LITTLE_ENDIAN
    #define ENC_HOST_ENDIAN ENC_LITTLE_ENDIAN
#else
    #define ENC_HOST_ENDIAN ENC_BIG_ENDIAN
#endif

/*
 * Historically FT_TIMEs were only timespecs; the only question was whether
 * they were stored in big- or little-endian format.
 *
 * For backwards compatibility, we interpret an encoding of 1 as meaning
 * "little-endian timespec", so that passing TRUE is interpreted as that.
 *
 * We now support:
 *
 *  ENC_TIME_TIMESPEC - 8 bytes; the first 4 bytes are seconds and the
 *  next 4 bytes are nanoseconds.  If the time is absolute, the seconds
 *  are seconds since the UN*X epoch (1970-01-01 00:00:00 UTC).  (I.e.,
 *  a UN*X struct timespec with a 4-byte time_t.)
 *
 *  ENC_TIME_NTP - 8 bytes; the first 4 bytes are seconds since the NTP
 *  epoch (1901-01-01 00:00:00 GMT) and the next 4 bytes are 1/2^32's of
 *  a second since that second.  (I.e., a 64-bit count of 1/2^32's of a
 *  second since the NTP epoch, with the upper 32 bits first and the
 *  lower 32 bits second, even when little-endian.)
 *
 *  ENC_TIME_TOD - 8 bytes, as a count of microseconds since the System/3x0
 *  and z/Architecture epoch (1900-01-01 00:00:00 GMT).
 *
 *  ENC_TIME_RTPS - 8 bytes; the first 4 bytes are seconds since the UN*X
 *  epoch and the next 4 bytes are are 1/2^32's of a second since that
 *  second.  (I.e., it's the offspring of a mating between UN*X time and
 *  NTP time.)  It's used by the Object Management Group's Real-Time
 *  Publish-Subscribe Wire Protocol for the Data Distribution Service.
 *
 *  ENC_TIME_TIMEVAL - 8 bytes; the first 4 bytes are seconds and the
 *  next 4 bytes are microseconds.  If the time is absolute, the seconds
 *  are seconds since the UN*X epoch.  (I.e., a UN*X struct timeval with
 *  a 4-byte time_t.)
 *
 *  ENC_TIME_SECS - 4 to 8 bytes, representing a value in seconds.
 *  If the time is absolute, it's seconds since the UN*X epoch.
 *
 *  ENC_TIME_MSECS - 6 to 8 bytes, representing a value in milliseconds.
 *  If the time is absolute, it's milliseconds since the UN*X epoch.
 *
 *  ENC_TIME_SECS_NTP - 4 bytes, representing a count of seconds since
 *  the NTP epoch.  (I.e., seconds since the NTP epoch.)
 *
 *  ENC_TIME_RFC_3971 - 8 bytes, representing a count of 1/64ths of a
 *  second since the UN*X epoch; see section 5.3.1 "Timestamp Option"
 *  in RFC 3971.
 *
 *  ENC_TIME_MSEC_NTP - 4-8 bytes, representing a count of milliseconds since
 *  the NTP epoch.  (I.e., milliseconds since the NTP epoch.)
 */
#define ENC_TIME_TIMESPEC      0x00000000
#define ENC_TIME_NTP           0x00000002
#define ENC_TIME_TOD           0x00000004
#define ENC_TIME_RTPS          0x00000008
#define ENC_TIME_NTP_BASE_ZERO ENC_TIME_RTPS /* for backwards source compatibility */
#define ENC_TIME_TIMEVAL       0x00000010
#define ENC_TIME_SECS          0x00000012
#define ENC_TIME_MSECS         0x00000014
#define ENC_TIME_SECS_NTP      0x00000018
#define ENC_TIME_RFC_3971      0x00000020
#define ENC_TIME_MSEC_NTP      0x00000022

/*
 * Historically, the only place the representation mattered for strings
 * was with FT_UINT_STRINGs, where we had FALSE for the string length
 * being big-endian and TRUE for it being little-endian.
 *
 * We now have encoding values for the character encoding.  The encoding
 * values are encoded in all but the top bit (which is the byte-order
 * bit, required for FT_UINT_STRING and for UCS-2 and UTF-16 strings)
 * and the bottom bit (which we ignore for now so that programs that
 * pass TRUE for the encoding just do ASCII).  (The encodings are given
 * directly as even numbers in hex, so that make-init-lua.pl can just
 * turn them into numbers for use in init.lua.)
 *
 * We don't yet process ASCII and UTF-8 differently.  Ultimately, for
 * ASCII, all bytes with the 8th bit set should be mapped to some "this
 * is not a valid character" code point, as ENC_ASCII should mean "this
 * is ASCII, not some extended variant thereof".  We should also map
 * 0x00 to that as well - null-terminated and null-padded strings
 * never have NULs in them, but counted strings might.  (Either that,
 * or the values for strings should be counted, not null-terminated.)
 * For UTF-8, invalid UTF-8 sequences should be mapped to the same
 * code point.
 *
 * For display, perhaps we should also map control characters to the
 * Unicode glyphs showing the name of the control character in small
 * caps, diagonally.  (Unfortunately, those only exist for C0, not C1.)
 */
#define ENC_CHARENCODING_MASK		0x7FFFFFFE	/* mask out byte-order bits */
#define ENC_ASCII			0x00000000
#define ENC_UTF_8			0x00000002
#define ENC_UTF_16			0x00000004
#define ENC_UCS_2			0x00000006
#define ENC_UCS_4			0x00000008
#define ENC_ISO_8859_1			0x0000000A
#define ENC_ISO_8859_2			0x0000000C
#define ENC_ISO_8859_3			0x0000000E
#define ENC_ISO_8859_4			0x00000010
#define ENC_ISO_8859_5			0x00000012
#define ENC_ISO_8859_6			0x00000014
#define ENC_ISO_8859_7			0x00000016
#define ENC_ISO_8859_8			0x00000018
#define ENC_ISO_8859_9			0x0000001A
#define ENC_ISO_8859_10			0x0000001C
#define ENC_ISO_8859_11			0x0000001E
/* #define ENC_ISO_8859_12			0x00000020 ISO 8859-12 was abandoned */
#define ENC_ISO_8859_13			0x00000022
#define ENC_ISO_8859_14			0x00000024
#define ENC_ISO_8859_15			0x00000026
#define ENC_ISO_8859_16			0x00000028
#define ENC_WINDOWS_1250		0x0000002A
#define ENC_3GPP_TS_23_038_7BITS	0x0000002C
#define ENC_EBCDIC			0x0000002E
#define ENC_MAC_ROMAN			0x00000030
#define ENC_CP437			0x00000032
#define ENC_ASCII_7BITS			0x00000034
#define ENC_T61				0x00000036
#define ENC_EBCDIC_CP037		0x00000038

/*
 * TODO:
 *
 * These could probably be used by existing code:
 *
 *	"IBM MS DBCS"
 *	JIS C 6226
 *
 * As those are added, change code such as the code in packet-bacapp.c
 * to use them.
 */

/*
 * For protocols (FT_PROTOCOL), aggregate items with subtrees (FT_NONE),
 * opaque byte-array fields (FT_BYTES), and other fields where there
 * is no choice of encoding (either because it's "just a bucket
 * of bytes" or because the encoding is completely fixed), we
 * have ENC_NA (for "Not Applicable").
 */
#define ENC_NA			0x00000000

/* For cases where either native type or string encodings could both be
 * valid arguments, we need something to distinguish which one is being
 * passed as the argument, because ENC_BIG_ENDIAN and ENC_ASCII are both
 * 0x00000000. So we use ENC_STR_NUM or ENC_STR_HEX bit-or'ed with
 * ENC_ASCII and its ilk.
 */
/* this is for strings as numbers "12345" */
#define ENC_STR_NUM             0x01000000
/* this is for strings as hex "1a2b3c" */
#define ENC_STR_HEX             0x02000000
/* a convenience macro for either of the above */
#define ENC_STRING              0x03000000
/* mask out ENC_STR_* and related bits - should this replace ENC_CHARENCODING_MASK? */
#define ENC_STR_MASK            0x0000FFFE

/* for cases where the number is allowed to have a leading '+'/'-' */
/* this can't collide with ENC_SEP_* because they can be used simultaneously */
#define ENC_NUM_PREF    0x00200000

#define ENC_VARINT_PROTOBUF      0x00000002

/* For cases where a string encoding contains hex, bit-or one or more
 * of these for the allowed separator(s), as well as with ENC_STR_HEX.
 * See hex_str_to_bytes_encoding() in epan/strutil.h for details.
 */
#define ENC_SEP_NONE    0x00010000
#define ENC_SEP_COLON   0x00020000
#define ENC_SEP_DASH    0x00040000
#define ENC_SEP_DOT   0x00080000
#define ENC_SEP_SPACE   0x00100000
/* a convenience macro for the above */
#define ENC_SEP_MASK    0x001F0000

/* For cases where a string encoding contains a timestamp, use one
 * of these (but only one). These values can collide with above, because
 * you can't do both at the same time.
 */
#define ENC_ISO_8601_DATE       0x00010000
#define ENC_ISO_8601_TIME       0x00020000
#define ENC_ISO_8601_DATE_TIME  0x00030000
#define ENC_RFC_822             0x00040000
#define ENC_RFC_1123            0x00080000
/* a convenience macro for the above - for internal use only */
#define ENC_STR_TIME_MASK       0x000F0000

/* Values for header_field_info.display */

/* For integral types, the display format is a BASE_* field_display_e value
 * possibly ORed with BASE_*_STRING */

/** FIELD_DISPLAY_E_MASK selects the field_display_e value. */
#define FIELD_DISPLAY_E_MASK 0xFF

/*
 * Note that this enum values are parsed in make-init-lua.pl so make sure
 * any changes here still makes valid entries in init.lua.
 */
typedef enum {
/* Integral types */
	BASE_NONE    = 0,   /**< none */
	BASE_DEC     = 1,   /**< decimal */
	BASE_HEX     = 2,   /**< hexadecimal */
	BASE_OCT     = 3,   /**< octal */
	BASE_DEC_HEX = 4,   /**< decimal (hexadecimal) */
	BASE_HEX_DEC = 5,   /**< hexadecimal (decimal) */
	BASE_CUSTOM  = 6,   /**< call custom routine (in ->strings) to format */

/* Float types */
	BASE_FLOAT   = BASE_NONE, /**< decimal-format float */

/* String types */
	STR_ASCII    = 0,   /**< shows non-printable ASCII characters as C-style escapes */
	/* XXX, support for format_text_wsp() ? */
	STR_UNICODE  = 7,   /**< shows non-printable UNICODE characters as \\uXXXX (XXX for now non-printable characters display depends on UI) */

/* Byte separators */
	SEP_DOT      = 8,   /**< hexadecimal bytes with a period (.) between each byte */
	SEP_DASH     = 9,   /**< hexadecimal bytes with a dash (-) between each byte */
	SEP_COLON    = 10,  /**< hexadecimal bytes with a colon (:) between each byte */
	SEP_SPACE    = 11,  /**< hexadecimal bytes with a space between each byte */

/* Address types */
	BASE_NETMASK = 12,  /**< Used for IPv4 address that shouldn't be resolved (like for netmasks) */

/* Port types */
	BASE_PT_UDP  = 13,  /**< UDP port */
	BASE_PT_TCP  = 14,  /**< TCP port */
	BASE_PT_DCCP = 15,  /**< DCCP port */
	BASE_PT_SCTP = 16   /**< SCTP port */
} field_display_e;

#define FIELD_DISPLAY(d) ((d) & FIELD_DISPLAY_E_MASK)

/* Following constants have to be ORed with a field_display_e when dissector
 * want to use specials value-string MACROs for a header_field_info */
#define BASE_RANGE_STRING       0x0100
#define BASE_EXT_STRING         0x0200
#define BASE_VAL64_STRING       0x0400
#define BASE_ALLOW_ZERO         0x0800  /**< Display <none> instead of <MISSING> for zero sized byte array */
#define BASE_UNIT_STRING        0x1000  /**< Add unit text to the field value */
#define BASE_NO_DISPLAY_VALUE   0x2000  /**< Just display the field name with no value.  Intended for
                                             byte arrays or header fields above a subtree */
#define BASE_PROTOCOL_INFO      0x4000  /**< protocol_t in [FIELDCONVERT].  Internal use only. */
#define BASE_SPECIAL_VALS    0x8000  /**< field will not display "Unknown" if value_string match is not found */

/** BASE_ values that cause the field value to be displayed twice */
#define IS_BASE_DUAL(b) ((b)==BASE_DEC_HEX||(b)==BASE_HEX_DEC)

/** BASE_PT_ values display decimal and transport port service name */
#define IS_BASE_PORT(b) (((b)==BASE_PT_UDP||(b)==BASE_PT_TCP||(b)==BASE_PT_DCCP||(b)==BASE_PT_SCTP))

/* For FT_ABSOLUTE_TIME, the display format is an absolute_time_display_e
 * as per time_fmt.h. */

typedef enum {
    HF_REF_TYPE_NONE,       /**< Field is not referenced */
    HF_REF_TYPE_INDIRECT,   /**< Field is indirectly referenced (only applicable for FT_PROTOCOL) via. its child */
    HF_REF_TYPE_DIRECT      /**< Field is directly referenced */
} hf_ref_type;

/** information describing a header field */
typedef struct _header_field_info header_field_info;

/** information describing a header field */
struct _header_field_info {
	/* ---------- set by dissector --------- */
	const char		*name;              /**< [FIELDNAME] full name of this field */
	const char		*abbrev;            /**< [FIELDABBREV] abbreviated name of this field */
	enum ftenum		 type;              /**< [FIELDTYPE] field type, one of FT_ (from ftypes.h) */
	int			 display;           /**< [FIELDDISPLAY] one of BASE_, or field bit-width if FT_BOOLEAN and non-zero bitmask */
	const void		*strings;           /**< [FIELDCONVERT] value_string, val64_string, range_string or true_false_string,
				                         typically converted by VALS(), RVALS() or TFS().
				                         If this is an FT_PROTOCOL or BASE_PROTOCOL_INFO then it points to the
				                         associated protocol_t structure */
	guint64			 bitmask;           /**< [BITMASK] bitmask of interesting bits */
	const char		*blurb;             /**< [FIELDDESCR] Brief description of field */

	/* ------- set by proto routines (prefilled by HFILL macro, see below) ------ */
	int			 id;                /**< Field ID */
	int			 parent;            /**< parent protocol tree */
	hf_ref_type		 ref_type;          /**< is this field referenced by a filter */
	int			 same_name_prev_id; /**< ID of previous hfinfo with same abbrev */
	header_field_info	*same_name_next;    /**< Link to next hfinfo with same abbrev */
};

/**
 * HFILL initializes all the "set by proto routines" fields in a
 * _header_field_info. If new fields are added or removed, it should
 * be changed as necessary.
 */
#define HFILL -1, 0, HF_REF_TYPE_NONE, -1, NULL

#define HFILL_INIT(hf)   \
	(hf).hfinfo.id			= -1;   \
	(hf).hfinfo.parent		= 0;   \
	(hf).hfinfo.ref_type		= HF_REF_TYPE_NONE;   \
	(hf).hfinfo.same_name_prev_id	= -1;   \
	(hf).hfinfo.same_name_next	= NULL;

/** Used when registering many fields at once, using proto_register_field_array() */
typedef struct hf_register_info {
	int				*p_id;	/**< written to by register() function */
	header_field_info		hfinfo;	/**< the field info to be registered */
} hf_register_info;




/** string representation, if one of the proto_tree_add_..._format() functions used */
typedef struct _item_label_t {
	char representation[ITEM_LABEL_LENGTH];
} item_label_t;


/** Contains the field information for the proto_item. */
typedef struct field_info {
	header_field_info	*hfinfo;          /**< pointer to registered field information */
	gint			 start;           /**< current start of data in field_info.ds_tvb */
	gint			 length;          /**< current data length of item in field_info.ds_tvb */
	gint			 appendix_start;  /**< start of appendix data */
	gint			 appendix_length; /**< length of appendix data */
	gint			 tree_type;       /**< one of ETT_ or -1 */
	guint32			 flags;           /**< bitfield like FI_GENERATED, ... */
	item_label_t		*rep;             /**< string for GUI tree */
	tvbuff_t		*ds_tvb;          /**< data source tvbuff */
	fvalue_t		 value;
} field_info;


/*
 * This structure describes one segment of a split-bits item
 * crumb_bit_offset is the bit offset in the input tvb of the first (most significant) bit of this crumb
 * crumb_bit_length is the number of contiguous bits of this crumb.
 * The first element of an array of bits_specs describes the most significant crumb of the output value.
 * The second element of an array of bits_specs describes the next-most significant crumb of the output value, etc.
 * The array is terminated by a sentinel entry with crumb_bit_length of 0.
*/
typedef struct
{
    guint  crumb_bit_offset;
    guint8 crumb_bit_length;
}crumb_spec_t;

/*
 * Flag fields.  Do not assign values greater than 0x00000080 unless you
 * shuffle the expert information upward; see below.
 */

/** The protocol field should not be shown in the tree (it's used for filtering only),
 * used in field_info.flags. */
/** HIDING PROTOCOL FIELDS IS DEPRECATED, IT'S CONSIDERED TO BE BAD GUI DESIGN!
   A user cannot tell by looking at the packet detail that the field exists
   and that they can filter on its value. */
#define FI_HIDDEN               0x00000001
/** The protocol field should be displayed as "generated by Wireshark",
 * used in field_info.flags. */
#define FI_GENERATED            0x00000002
/** The protocol field is actually a URL */
#define FI_URL                  0x00000004

/** The protocol field value is in little endian */
#define FI_LITTLE_ENDIAN        0x00000008
/** The protocol field value is in big endian */
#define FI_BIG_ENDIAN           0x00000010
/** The protocol field value is a varint */
#define FI_VARINT               0x00000020
/** Field value start from nth bit (values from 0x20 - 0x100) */
#define FI_BITS_OFFSET(n)       (((n) & 7) << 5)
/** Field value takes n bits (values from 0x100 - 0x4000) */
/* if 0, it means that field takes fi->length * 8 */
#define FI_BITS_SIZE(n)         (((n) & 63) << 8)

/** convenience macro to get field_info.flags */
#define FI_GET_FLAG(fi, flag)   ((fi) ? ((fi)->flags & (flag)) : 0)
/** convenience macro to set field_info.flags */
#define FI_SET_FLAG(fi, flag) \
    do { \
      if (fi) \
        (fi)->flags = (fi)->flags | (flag); \
    } while(0)
/** convenience macro to reset field_info.flags */
#define FI_RESET_FLAG(fi, flag) \
    do { \
      if (fi) \
        (fi)->flags = (fi)->flags & ~(flag); \
    } while(0)

#define FI_GET_BITS_OFFSET(fi) (FI_GET_FLAG(fi, FI_BITS_OFFSET(7)) >> 5)
#define FI_GET_BITS_SIZE(fi)   (FI_GET_FLAG(fi, FI_BITS_SIZE(63)) >> 8)

/** One of these exists for the entire protocol tree. Each proto_node
 * in the protocol tree points to the same copy. */
typedef struct {
    GHashTable  *interesting_hfids;
    gboolean     visible;
    gboolean     fake_protocols;
    gint         count;
    struct _packet_info *pinfo;
} tree_data_t;

/** Each proto_tree, proto_item is one of these. */
typedef struct _proto_node {
	struct _proto_node *first_child;
	struct _proto_node *last_child;
	struct _proto_node *next;
	struct _proto_node *parent;
	field_info  *finfo;
	tree_data_t *tree_data;
} proto_node;

/** A protocol tree element. */
typedef proto_node proto_tree;
/** A protocol item element. */
typedef proto_node proto_item;

/*
 * Expert information.
 * This is in the flags field; we allocate this from the top down,
 * so as not to collide with FI_ flags, which are allocated from
 * the bottom up.
 */

/* do not modify the PI_SEVERITY_MASK name - it's used by make-init-lua.pl */
/* expert severities */
#define PI_SEVERITY_MASK        0x00F00000	/**< mask usually for internal use only! */
/** Packet comment */
#define PI_COMMENT              0x00100000
/** Usual workflow, e.g. TCP connection establishing */
#define PI_CHAT                 0x00200000
/** Notable messages, e.g. an application returned an "unusual" error code like HTTP 404 */
#define PI_NOTE                 0x00400000
/** Warning, e.g. application returned an "unusual" error code */
#define PI_WARN                 0x00600000
/** Serious problems, e.g. a malformed packet */
#define PI_ERROR                0x00800000

/* do not modify the PI_GROUP_MASK name - it's used by make-init-lua.pl */
/* expert "event groups" */
#define PI_GROUP_MASK           0xFF000000	/**< mask usually for internal use only! */
/** The protocol field has a bad checksum, usually uses PI_WARN severity */
#define PI_CHECKSUM             0x01000000
/** The protocol field indicates a sequence problem (e.g. TCP window is zero) */
#define PI_SEQUENCE             0x02000000
/** The protocol field indicates a bad application response code (e.g. HTTP 404), usually PI_NOTE severity */
#define PI_RESPONSE_CODE        0x03000000
/** The protocol field indicates an application request (e.g. File Handle == xxxx), usually PI_CHAT severity */
#define PI_REQUEST_CODE         0x04000000
/** The data is undecoded, the protocol dissection is incomplete here, usually PI_WARN severity */
#define PI_UNDECODED            0x05000000
/** The protocol field indicates a reassemble (e.g. DCE/RPC defragmentation), usually PI_CHAT severity (or PI_ERROR) */
#define PI_REASSEMBLE           0x06000000
/** The packet data is malformed, the dissector has "given up", usually PI_ERROR severity */
#define PI_MALFORMED            0x07000000
/** A generic debugging message (shouldn't remain in production code!), usually PI_ERROR severity */
#define PI_DEBUG                0x08000000
/** The protocol field violates a protocol specification, usually PI_WARN severity */
#define PI_PROTOCOL             0x09000000
/** The protocol field indicates a security problem (e.g. insecure implementation) */
#define PI_SECURITY             0x0a000000
/** The protocol field indicates a packet comment */
#define PI_COMMENTS_GROUP       0x0b000000
/** The protocol field indicates a decryption problem */
#define PI_DECRYPTION           0x0c000000
/** The protocol field has incomplete data, decode based on assumed value */
#define PI_ASSUMPTION           0x0d000000
/** The protocol field has been deprecated, usually PI_NOTE severity */
#define PI_DEPRECATED           0x0e000000

/* add more, see https://wiki.wireshark.org/Development/ExpertInfo */


/** is this protocol field hidden from the protocol tree display (used for filtering only)? */
/* HIDING PROTOCOL FIELDS IS DEPRECATED, IT'S CONSIDERED TO BE BAD GUI DESIGN! */
#define PROTO_ITEM_IS_HIDDEN(proto_item)        \
	((proto_item) ? FI_GET_FLAG(PITEM_FINFO(proto_item), FI_HIDDEN) : 0)
/** mark this protocol field to be hidden from the protocol tree display (used for filtering only) */
/* HIDING PROTOCOL FIELDS IS DEPRECATED, IT'S CONSIDERED TO BE BAD GUI DESIGN! */
#define PROTO_ITEM_SET_HIDDEN(proto_item)       \
  do { \
    if (proto_item) \
      FI_SET_FLAG(PITEM_FINFO(proto_item), FI_HIDDEN); \
  } while(0)
/** mark this protocol field to be visible from the protocol tree display */
#define PROTO_ITEM_SET_VISIBLE(proto_item)       \
  do { \
    if (proto_item) \
      FI_RESET_FLAG(PITEM_FINFO(proto_item), FI_HIDDEN); \
  } while(0)

/** is this protocol field generated by Wireshark (and not read from the packet data)? */
#define PROTO_ITEM_IS_GENERATED(proto_item)	\
	((proto_item) ? FI_GET_FLAG(PITEM_FINFO(proto_item), FI_GENERATED) : 0)
/** mark this protocol field as generated by Wireshark (and not read from the packet data) */
#define PROTO_ITEM_SET_GENERATED(proto_item)	\
    do { \
      if (proto_item) \
        FI_SET_FLAG(PITEM_FINFO(proto_item), FI_GENERATED); \
    } while(0)
/** is this protocol field actually a URL? */
#define PROTO_ITEM_IS_URL(proto_item)	\
	((proto_item) ? FI_GET_FLAG(PITEM_FINFO(proto_item), FI_URL) : 0)
/** mark this protocol field as a URL */
#define PROTO_ITEM_SET_URL(proto_item)	\
    do { \
      if (proto_item) \
        FI_SET_FLAG(PITEM_FINFO(proto_item), FI_URL); \
    } while(0)

typedef void (*proto_tree_foreach_func)(proto_node *, gpointer);
typedef gboolean (*proto_tree_traverse_func)(proto_node *, gpointer);

extern gboolean proto_tree_traverse_post_order(proto_tree *tree,
    proto_tree_traverse_func func, gpointer data);

WS_DLL_PUBLIC void proto_tree_children_foreach(proto_tree *tree,
    proto_tree_foreach_func func, gpointer data);

/** Retrieve the field_info from a proto_node */
#define PNODE_FINFO(proto_node)  ((proto_node)->finfo)

/** Retrieve the field_info from a proto_item */
#define PITEM_FINFO(proto_item)  PNODE_FINFO(proto_item)

/** Retrieve the field_info from a proto_tree */
#define PTREE_FINFO(proto_tree)  PNODE_FINFO(proto_tree)

/** Retrieve the tree_data_t from a proto_tree */
#define PTREE_DATA(proto_tree)   ((proto_tree)->tree_data)

/** Retrieve the wmem_allocator_t from a proto_node */
#define PNODE_POOL(proto_node)   ((proto_node)->tree_data->pinfo->pool)

#ifdef HAVE_PLUGINS
/** Register dissector plugin type with the plugin system.
    Called by epan_register_plugin_types(); do not call it yourself. */
extern void register_dissector_plugin_type(void);
#endif

/** Sets up memory used by proto routines. Called at program startup */
void proto_init(void (register_all_protocols_func)(register_cb cb, gpointer client_data),
		       void (register_all_handoffs_func)(register_cb cb, gpointer client_data),
		       register_cb cb, void *client_data);


/** Frees memory used by proto routines. Called at program shutdown */
extern void proto_cleanup(void);

/** This function takes a tree and a protocol id as parameter and
    will return TRUE/FALSE for whether the protocol or any of the filterable
    fields in the protocol is referenced by any fitlers.
    If this function returns FALSE then it is safe to skip any
    proto_tree_add_...() calls and just treat the call as if the
    dissector was called with tree==NULL.
    If you reset the tree to NULL by this dissector returning FALSE,
    you will still need to call any subdissector with the original value of
    tree or filtering will break.

    The purpose of this is to optimize wireshark for speed and make it
    faster for when filters are being used.
*/
WS_DLL_PUBLIC gboolean proto_field_is_referenced(proto_tree *tree, int proto_id);

/** Create a subtree under an existing item.
 @param ti the parent item of the new subtree
 @param idx one of the ett_ array elements registered with proto_register_subtree_array()
 @return the new subtree */
WS_DLL_PUBLIC proto_tree* proto_item_add_subtree(proto_item *ti, const gint idx) G_GNUC_WARN_UNUSED_RESULT;

/** Get an existing subtree under an item.
 @param ti the parent item of the subtree
 @return the subtree or NULL */
WS_DLL_PUBLIC proto_tree* proto_item_get_subtree(proto_item *ti);

/** Get the parent of a subtree item.
 @param ti the child item in the subtree
 @return parent item or NULL */
WS_DLL_PUBLIC proto_item* proto_item_get_parent(const proto_item *ti);

/** Get Nth generation parent item.
 @param ti the child item in the subtree
 @param gen the generation to get (using 1 here is the same as using proto_item_get_parent())
 @return parent item */
WS_DLL_PUBLIC proto_item* proto_item_get_parent_nth(proto_item *ti, int gen);

/** Replace text of item after it already has been created.
 @param ti the item to set the text
 @param format printf like format string
 @param ... printf like parameters */
WS_DLL_PUBLIC void proto_item_set_text(proto_item *ti, const char *format, ...)
	G_GNUC_PRINTF(2,3);

/** Append to text of item after it has already been created.
 @param ti the item to append the text to
 @param format printf like format string
 @param ... printf like parameters */
WS_DLL_PUBLIC void proto_item_append_text(proto_item *ti, const char *format, ...)
	G_GNUC_PRINTF(2,3);

/** Prepend to text of item after it has already been created.
 @param ti the item to prepend the text to
 @param format printf like format string
 @param ... printf like parameters */
WS_DLL_PUBLIC void proto_item_prepend_text(proto_item *ti, const char *format, ...)
	G_GNUC_PRINTF(2,3);

/** Set proto_item's length inside tvb, after it has already been created.
 @param ti the item to set the length
 @param length the new length ot the item */
WS_DLL_PUBLIC void proto_item_set_len(proto_item *ti, const gint length);

/**
 * Sets the length of the item based on its start and on the specified
 * offset, which is the offset past the end of the item; as the start
 * in the item is relative to the beginning of the data source tvbuff,
 * we need to pass in a tvbuff.
 @param ti the item to set the length
 @param tvb end is relative to this tvbuff
 @param end this end offset is relative to the beginning of tvb
 @todo make usage clearer, I don't understand it!
 */
WS_DLL_PUBLIC void proto_item_set_end(proto_item *ti, tvbuff_t *tvb, gint end);

/** Get length of a proto_item. Useful after using proto_tree_add_item()
 * to add a variable-length field (e.g., FT_NSTRING_UINT8).
 @param ti the item to get the length from
 @return the current length */
WS_DLL_PUBLIC int proto_item_get_len(const proto_item *ti);



/** Creates a new proto_tree root.
 @return the new tree root */
extern proto_tree* proto_tree_create_root(struct _packet_info *pinfo);

void proto_tree_reset(proto_tree *tree);

/** Clear memory for entry proto_tree. Clears proto_tree struct also.
 @param tree the tree to free */
WS_DLL_PUBLIC void proto_tree_free(proto_tree *tree);

/** Set the tree visible or invisible.
 Is the parsing being done for a visible proto_tree or an invisible one?
 By setting this correctly, the proto_tree creation is sped up by not
 having to call g_vsnprintf and copy strings around.
 @param tree the tree to be set
 @param visible ... or not
 @return the old value */
WS_DLL_PUBLIC gboolean
proto_tree_set_visible(proto_tree *tree, gboolean visible);

/** Indicate whether we should fake protocols during dissection (default = TRUE)
 @param tree the tree to be set
 @param fake_protocols TRUE if we should fake protocols */
extern void
proto_tree_set_fake_protocols(proto_tree *tree, gboolean fake_protocols);

/** Mark a field/protocol ID as "interesting".
 @param tree the tree to be set (currently ignored)
 @param hfid the interesting field id
 @todo what *does* interesting mean? */
extern void
proto_tree_prime_with_hfid(proto_tree *tree, const int hfid);

/** Get a parent item of a subtree.
 @param tree the tree to get the parent from
 @return parent item */
WS_DLL_PUBLIC proto_item* proto_tree_get_parent(proto_tree *tree);

/** Get the parent tree of a subtree.
 @param tree the tree to get the parent from
 @return parent tree */
WS_DLL_PUBLIC proto_tree *proto_tree_get_parent_tree(proto_tree *tree);

/** Get the root tree from any subtree.
 @param tree the tree to get the root from
 @return root tree */
WS_DLL_PUBLIC proto_tree* proto_tree_get_root(proto_tree *tree);

/** Move an existing item behind another existing item.
 @param tree the tree to which both items belong
 @param fixed_item the item which keeps its position
 @param item_to_move the item which will be moved */
WS_DLL_PUBLIC void proto_tree_move_item(proto_tree *tree, proto_item *fixed_item, proto_item *item_to_move);


/** Set start and length of an appendix for a proto_tree.
  @param tree the tree to set the appendix start and length
  @param tvb the tv buffer of the current data
  @param start the start offset of the appendix
  @param length the length of the appendix */
WS_DLL_PUBLIC void proto_tree_set_appendix(proto_tree *tree, tvbuff_t *tvb, gint start, const gint length);


/** Add an item to a proto_tree, using the text label registered to that item.
   The item is extracted from the tvbuff handed to it.
 @param tree the tree to append this item to
 @param hfinfo field
 @param tvb the tv buffer of the current data
 @param start start of data in tvb
 @param length length of data in tvb
 @param encoding data encoding
 @return the newly created item */
WS_DLL_PUBLIC proto_item *
proto_tree_add_item_new(proto_tree *tree, header_field_info *hfinfo, tvbuff_t *tvb,
    const gint start, gint length, const guint encoding);

WS_DLL_PUBLIC proto_item *
proto_tree_add_item(proto_tree *tree, int hfindex, tvbuff_t *tvb,
		    const gint start, gint length, const guint encoding);

/** Add an item to a proto_tree, using the text label registered to that item.
   The item is extracted from the tvbuff handed to it.

   Return the length of the item through the pointer.
 @param tree the tree to append this item to
 @param hfinfo field
 @param tvb the tv buffer of the current data
 @param start start of data in tvb
 @param length length of data in tvb
 @param encoding data encoding
 @param[out] lenretval points to a gint that will be set to the item length
 @return the newly created item, and *lenretval is set to the item length */
WS_DLL_PUBLIC proto_item *
proto_tree_add_item_new_ret_length(proto_tree *tree, header_field_info *hfinfo, tvbuff_t *tvb,
    const gint start, gint length, const guint encoding, gint *lenretval);

WS_DLL_PUBLIC proto_item *
proto_tree_add_item_ret_length(proto_tree *tree, int hfindex, tvbuff_t *tvb,
			      const gint start, gint length,
			      const guint encoding, gint *lenretval);

/** Add an integer data item to a proto_tree, using the text label registered to that item.
The item is extracted from the tvbuff handed to it, and the retrieved
value is also set to *retval so the caller gets it back for other uses.

This function retrieves the value even if the passed-in tree param is NULL,
so that it can be used by dissectors at all times to both get the value
and set the tree item to it.

Like other proto_tree_add functions, if there is a tree and the value cannot
be decoded from the tvbuff, then an expert info error is reported.

This function accepts ENC_LITTLE_ENDIAN and ENC_BIG_ENDIAN for native number
encoding in the tvbuff

The length argument must
be set to the appropriate size of the native type as in other proto_add routines.

Integers of 8, 16, 24 and 32 bits can be retrieved with the _ret_int and
ret_uint functions; integers of 40, 48, 56, and 64 bits can be retrieved
with the _ret_uint64 function; Boolean values of 8, 16, 24, 32, 40, 48,
56, and 64 bits can be retrieved with the _ret_boolean function.

@param tree the tree to append this item to
@param hfindex field
@param tvb the tv buffer of the current data
@param start start of data in tvb (cannot be negative)
@param length length of data in tvb (for strings can be -1 for remaining)
@param encoding data encoding (e.g, ENC_LITTLE_ENDIAN, ENC_BIG_ENDIAN, ENC_ASCII|ENC_STRING, etc.)
@param[out] retval points to a gint32 or guint32 which will be set to the value
@return the newly created item, and *retval is set to the decoded value masked/shifted according to bitmask
*/
WS_DLL_PUBLIC proto_item *
proto_tree_add_item_ret_int(proto_tree *tree, int hfindex, tvbuff_t *tvb,
    const gint start, gint length, const guint encoding, gint32 *retval);

WS_DLL_PUBLIC proto_item *
proto_tree_add_item_ret_uint(proto_tree *tree, int hfindex, tvbuff_t *tvb,
    const gint start, gint length, const guint encoding, guint32 *retval);

WS_DLL_PUBLIC proto_item *
proto_tree_add_item_ret_uint64(proto_tree *tree, int hfindex, tvbuff_t *tvb,
    const gint start, gint length, const guint encoding, guint64 *retval);

WS_DLL_PUBLIC proto_item *
proto_tree_add_item_ret_varint(proto_tree *tree, int hfindex, tvbuff_t *tvb,
    const gint start, gint length, const guint encoding, guint64 *retval, gint *lenretval);

WS_DLL_PUBLIC proto_item *
proto_tree_add_item_ret_boolean(proto_tree *tree, int hfindex, tvbuff_t *tvb,
    const gint start, gint length, const guint encoding, gboolean *retval);

/** Add an string item to a proto_tree, using the text label registered to
that item.

The item is extracted from the tvbuff handed to it, and the retrieved
value and its length are returned through pointers so the caller can use
them.  The value is allocated using the wmem scope passed in.

This function retrieves the value and length even if the passed-in tree
param is NULL, so that then can be used by dissectors at all times to
both get the value and set the tree item to it.

Like other proto_tree_add functions, if there is a tree and the value cannot
be decoded from the tvbuff, then an expert info error is reported.

This function accepts string encodings.

@param scope the wmem scope to use to allocate the string
@param tree the tree to append this item to
@param hfindex field
@param tvb the tv buffer of the current data
@param start start of data in tvb (cannot be negative)
@param length length of data in tvb (for strings can be -1 for remaining)
@param encoding data encoding (e.g, ENC_ASCII, ENC_UTF_8, etc.)
@param[out] retval points to a guint8 * that will be set to point to the
string value
@param[out] lenretval points to a gint that will be set to the item length
@return the newly created item, *retval is set to the decoded value,
and *lenretval is set to the item length
*/
WS_DLL_PUBLIC proto_item *
proto_tree_add_item_ret_string_and_length(proto_tree *tree, int hfindex,
    tvbuff_t *tvb, const gint start, gint length, const guint encoding,
    wmem_allocator_t *scope, const guint8 **retval, gint *lenretval);

/** Add an string item to a proto_tree, using the text label registered to
that item.

The item is extracted from the tvbuff handed to it, and the retrieved
value is returned through a pointer so the caller can use it.  The value
is allocated using the wmem scope passed in.

This function retrieves the value even if the passed-in tree param is NULL,
so that it can be used by dissectors at all times to both get the value
and set the tree item to it.

Like other proto_tree_add functions, if there is a tree and the value cannot
be decoded from the tvbuff, then an expert info error is reported.

This function accepts string encodings.

@param scope the wmem scope to use to allocate the string
@param tree the tree to append this item to
@param hfindex field
@param tvb the tv buffer of the current data
@param start start of data in tvb (cannot be negative)
@param length length of data in tvb (for strings can be -1 for remaining)
@param encoding data encoding (e.g, ENC_ASCII, ENC_UTF_8, etc.)
@param[out] retval points to a guint8 * that will be set to point to the
string value
@return the newly created item, and *retval is set to the decoded value
*/
WS_DLL_PUBLIC proto_item *
proto_tree_add_item_ret_string(proto_tree *tree, int hfindex, tvbuff_t *tvb,
    const gint start, gint length, const guint encoding,
    wmem_allocator_t *scope, const guint8 **retval);

/** (INTERNAL USE ONLY) Add a text-only node to a proto_tree.
 @param tree the tree to append this item to
 @param tvb the tv buffer of the current data
 @param start start of data in tvb
 @param length length of data in tvb
 @param format printf like format string
 @param ... printf like parameters
 @return the newly created item */
proto_item *
proto_tree_add_text_internal(proto_tree *tree, tvbuff_t *tvb, gint start, gint length, const char *format,
	...) G_GNUC_PRINTF(5,6);

/** (INTERNAL USE ONLY) Add a text-only node to a proto_tree using a variable argument list.
 @param tree the tree to append this item to
 @param tvb the tv buffer of the current data
 @param start start of data in tvb
 @param length length of data in tvb
 @param format printf like format string
 @param ap variable argument list
 @return the newly created item */
proto_item *
proto_tree_add_text_valist_internal(proto_tree *tree, tvbuff_t *tvb, gint start,
	gint length, const char *format, va_list ap)
	G_GNUC_PRINTF(5, 0);

/** Add a text-only node that creates a subtree underneath.
 @param tree the tree to append this item to
 @param tvb the tv buffer of the current data
 @param start start of data in tvb
 @param length length of data in tvb
 @param idx one of the ett_ array elements registered with proto_register_subtree_array()
 @param tree_item item returned with tree creation. Can be NULL if going to be unused
 @param text label for the tree
 @return the newly created tree */
WS_DLL_PUBLIC proto_tree *
proto_tree_add_subtree(proto_tree *tree, tvbuff_t *tvb, gint start, gint length, gint idx, proto_item **tree_item, const char *text);

/** Add a text-only node that creates a subtree underneath.
 @param tree the tree to append this item to
 @param tvb the tv buffer of the current data
 @param start start of data in tvb
 @param length length of data in tvb
 @param idx one of the ett_ array elements registered with proto_register_subtree_array()
 @param tree_item item returned with tree creation. Can be NULL if going to be unused
 @param format printf like format string
 @param ... printf like parameters
 @return the newly created tree */
WS_DLL_PUBLIC proto_tree *
proto_tree_add_subtree_format(proto_tree *tree, tvbuff_t *tvb, gint start, gint length, gint idx, proto_item **tree_item, const char *format, ...) G_GNUC_PRINTF(7,8);

/** Add a text-only node to a proto_tree with tvb_format_text() string. */
proto_item *
proto_tree_add_format_text(proto_tree *tree, tvbuff_t *tvb, gint start, gint length);

/** Add a text-only node to a proto_tree with tvb_format_text_wsp() string. */
proto_item *
proto_tree_add_format_wsp_text(proto_tree *tree, tvbuff_t *tvb, gint start, gint length);

/** Add a FT_NONE field to a proto_tree.
 @param tree the tree to append this item to
 @param hfindex field index
 @param tvb the tv buffer of the current data
 @param start start of data in tvb
 @param length length of data in tvb
 @param format printf like format string
 @param ... printf like parameters
 @return the newly created item */
WS_DLL_PUBLIC proto_item *
proto_tree_add_none_format(proto_tree *tree, const int hfindex, tvbuff_t *tvb, const gint start,
	gint length, const char *format, ...) G_GNUC_PRINTF(6,7);

/** Add a FT_PROTOCOL to a proto_tree.
 @param tree the tree to append this item to
 @param hfindex field index
 @param tvb the tv buffer of the current data
 @param start start of data in tvb
 @param length length of data in tvb
 @param format printf like format string
 @param ... printf like parameters
 @return the newly created item */
WS_DLL_PUBLIC proto_item *
proto_tree_add_protocol_format(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
	gint length, const char *format, ...) G_GNUC_PRINTF(6,7);




/** Add a FT_BYTES to a proto_tree.
 @param tree the tree to append this item to
 @param hfindex field index
 @param tvb the tv buffer of the current data
 @param start start of data in tvb
 @param length length of data in tvb
 @param start_ptr pointer to the data to display
 @return the newly created item */
WS_DLL_PUBLIC proto_item *
proto_tree_add_bytes(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
	gint length, const guint8* start_ptr);

/** Add a FT_BYTES to a proto_tree like proto_tree_add_bytes,
 but used when the tvb data length does not match the bytes length.
 @param tree the tree to append this item to
 @param hfindex field index
 @param tvb the tv buffer of the current data
 @param start start of data in tvb
 @param length length of data in tvb
 @param start_ptr pointer to the data to display
 @param ptr_length length of data in start_ptr
 @return the newly created item */
WS_DLL_PUBLIC proto_item *
proto_tree_add_bytes_with_length(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
gint length, const guint8 *start_ptr, gint ptr_length);

/** Get and add a byte-array-based FT_* to a proto_tree.

 Supported: FT_BYTES, FT_UINT_BYTES, FT_OID, FT_REL_OID, and FT_SYSTEM_ID.

 The item is extracted from the tvbuff handed to it, based on the ENC_* passed
 in for the encoding, and the retrieved byte array is also set to *retval so the
 caller gets it back for other uses.

 This function retrieves the value even if the passed-in tree param is NULL,
 so that it can be used by dissectors at all times to both get the value
 and set the tree item to it.

 Like other proto_tree_add functions, if there is a tree and the value cannot
 be decoded from the tvbuff, then an expert info error is reported. For string
 encoding, this means that a failure to decode the hex value from the string
 results in an expert info error being added to the tree.

 If encoding is string-based, it will convert using tvb_get_string_bytes(); see
 that function's comments for details.

 @note The GByteArray retval must be pre-constructed using g_byte_array_new().

 @param tree the tree to append this item to
 @param hfindex field index
 @param tvb the tv buffer of the current data
 @param start start of data in tvb
 @param length length of data in tvb
 @param encoding data encoding (e.g, ENC_LITTLE_ENDIAN, or ENC_UTF_8|ENC_STR_HEX)
 @param[in,out] retval points to a GByteArray which will be set to the bytes from the Tvb.
 @param[in,out] endoff if not NULL, gets set to the character after those consumed.
 @param[in,out] err if not NULL, gets set to 0 if no failure, else the errno code (e.g., EDOM, ERANGE).
 @return the newly created item, and retval is set to the decoded value
 */
WS_DLL_PUBLIC proto_item *
proto_tree_add_bytes_item(proto_tree *tree, int hfindex, tvbuff_t *tvb,
    const gint start, gint length, const guint encoding,
    GByteArray *retval, gint *endoff, gint *err);

/** Add a formatted FT_BYTES to a proto_tree, with the format generating
    the string for the value and with the field name being included
    automatically.
 @param tree the tree to append this item to
 @param hfindex field index
 @param tvb the tv buffer of the current data
 @param start start of data in tvb
 @param length length of data in tvb
 @param start_ptr pointer to the data to display
 @param format printf like format string
 @param ... printf like parameters
 @return the newly created item */
WS_DLL_PUBLIC proto_item *
proto_tree_add_bytes_format_value(proto_tree *tree, int hfindex, tvbuff_t *tvb,
	gint start, gint length, const guint8* start_ptr, const char *format,
	...) G_GNUC_PRINTF(7,8);

/** Add a formatted FT_BYTES to a proto_tree, with the format generating
    the entire string for the entry, including any field name.
 @param tree the tree to append this item to
 @param hfindex field index
 @param tvb the tv buffer of the current data
 @param start start of data in tvb
 @param length length of data in tvb
 @param start_ptr pointer to the data to display
 @param format printf like format string
 @param ... printf like parameters
 @return the newly created item */
WS_DLL_PUBLIC proto_item *
proto_tree_add_bytes_format(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
	gint length, const guint8* start_ptr, const char *format, ...) G_GNUC_PRINTF(7,8);

/** Add a FT_ABSOLUTE_TIME or FT_RELATIVE_TIME to a proto_tree.
 @param tree the tree to append this item to
 @param hfindex field index
 @param tvb the tv buffer of the current data
 @param start start of data in tvb
 @param length length of data in tvb
 @param value_ptr pointer to the data to display
 @return the newly created item */
WS_DLL_PUBLIC proto_item *
proto_tree_add_time(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
	gint length, const nstime_t* value_ptr);

/** Get and add a FT_ABSOLUTE_TIME or FT_RELATIVE_TIME to a proto_tree.
 The item is extracted from the tvbuff handed to it, based on the ENC_* passed
 in for the encoding, and the retrieved value is also set to *retval so the
 caller gets it back for other uses.

 This function retrieves the value even if the passed-in tree param is NULL,
 so that it can be used by dissectors at all times to both get the value
 and set the tree item to it.

 Like other proto_tree_add functions, if there is a tree and the value cannot
 be decoded from the tvbuff, then an expert info error is reported. For string
 encoding, this means that a failure to decode the time value from the string
 results in an expert info error being added to the tree.

 If encoding is string-based, it will convert using tvb_get_string_time(); see
 that function's comments for details.

 @note The nstime_t *retval must be pre-allocated as a nstime_t.

 @param tree the tree to append this item to
 @param hfindex field index
 @param tvb the tv buffer of the current data
 @param start start of data in tvb
 @param length length of data in tvb
 @param encoding data encoding (e.g, ENC_LITTLE_ENDIAN, ENC_UTF_8|ENC_ISO_8601_DATE_TIME, etc.)
 @param[in,out] retval points to a nstime_t which will be set to the value
 @param[in,out] endoff if not NULL, gets set to the character after those consumed.
 @param[in,out] err if not NULL, gets set to 0 if no failure, else the errno code (e.g., EDOM, ERANGE).
 @return the newly created item, and retval is set to the decoded value
 */
WS_DLL_PUBLIC proto_item *
proto_tree_add_time_item(proto_tree *tree, int hfindex, tvbuff_t *tvb,
    const gint start, gint length, const guint encoding,
    nstime_t *retval, gint *endoff, gint *err);


/** Add a formatted FT_ABSOLUTE_TIME or FT_RELATIVE_TIME to a proto_tree, with
    the format generating the string for the value and with the field name
    being included automatically.
 @param tree the tree to append this item to
 @param hfindex field index
 @param tvb the tv buffer of the current data
 @param start start of data in tvb
 @param length length of data in tvb
 @param value_ptr pointer to the data to display
 @param format printf like format string
 @param ... printf like parameters
 @return the newly created item */
WS_DLL_PUBLIC proto_item *
proto_tree_add_time_format_value(proto_tree *tree, int hfindex, tvbuff_t *tvb,
	gint start, gint length, nstime_t* value_ptr, const char *format, ...)
	G_GNUC_PRINTF(7,8);

/** Add a formatted FT_ABSOLUTE_TIME or FT_RELATIVE_TIME to a proto_tree, with
    the format generating the entire string for the entry, including any field
    name.
 @param tree the tree to append this item to
 @param hfindex field index
 @param tvb the tv buffer of the current data
 @param start start of data in tvb
 @param length length of data in tvb
 @param value_ptr pointer to the data to display
 @param format printf like format string
 @param ... printf like parameters
 @return the newly created item */
WS_DLL_PUBLIC proto_item *
proto_tree_add_time_format(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
	gint length, nstime_t* value_ptr, const char *format, ...) G_GNUC_PRINTF(7,8);

/** Add a FT_IPXNET to a proto_tree.
 @param tree the tree to append this item to
 @param hfindex field index
 @param tvb the tv buffer of the current data
 @param start start of data in tvb
 @param length length of data in tvb
 @param value data to display
 @return the newly created item */
WS_DLL_PUBLIC proto_item *
proto_tree_add_ipxnet(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
	gint length, guint32 value);

/** Add a formatted FT_IPXNET to a proto_tree, with the format generating
    the string for the value and with the field name being included
    automatically.
 @param tree the tree to append this item to
 @param hfindex field index
 @param tvb the tv buffer of the current data
 @param start start of data in tvb
 @param length length of data in tvb
 @param value data to display
 @param format printf like format string
 @param ... printf like parameters
 @return the newly created item */
WS_DLL_PUBLIC proto_item *
proto_tree_add_ipxnet_format_value(proto_tree *tree, int hfindex, tvbuff_t *tvb,
	gint start, gint length, guint32 value, const char *format, ...)
	G_GNUC_PRINTF(7,8);

/** Add a formatted FT_IPXNET to a proto_tree, with the format generating
    the entire string for the entry, including any field name.
 @param tree the tree to append this item to
 @param hfindex field index
 @param tvb the tv buffer of the current data
 @param start start of data in tvb
 @param length length of data in tvb
 @param value data to display
 @param format printf like format string
 @param ... printf like parameters
 @return the newly created item */
WS_DLL_PUBLIC proto_item *
proto_tree_add_ipxnet_format(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
	gint length, guint32 value, const char *format, ...) G_GNUC_PRINTF(7,8);

/** Add a FT_IPv4 to a proto_tree.
 @param tree the tree to append this item to
 @param hfindex field index
 @param tvb the tv buffer of the current data
 @param start start of data in tvb
 @param length length of data in tvb
 @param value data to display
 @return the newly created item */
WS_DLL_PUBLIC proto_item *
proto_tree_add_ipv4(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
	gint length, guint32 value);

/** Add a formatted FT_IPv4 to a proto_tree, with the format generating
    the string for the value and with the field name being included
    automatically.
 @param tree the tree to append this item to
 @param hfindex field index
 @param tvb the tv buffer of the current data
 @param start start of data in tvb
 @param length length of data in tvb
 @param value data to display
 @param format printf like format string
 @param ... printf like parameters
 @return the newly created item */
WS_DLL_PUBLIC proto_item *
proto_tree_add_ipv4_format_value(proto_tree *tree, int hfindex, tvbuff_t *tvb,
	gint start, gint length, guint32 value, const char *format, ...)
	G_GNUC_PRINTF(7,8);

/** Add a formatted FT_IPv4 to a proto_tree, with the format generating
    the entire string for the entry, including any field name.
 @param tree the tree to append this item to
 @param hfindex field index
 @param tvb the tv buffer of the current data
 @param start start of data in tvb
 @param length length of data in tvb
 @param value data to display
 @param format printf like format string
 @param ... printf like parameters
 @return the newly created item */
WS_DLL_PUBLIC proto_item *
proto_tree_add_ipv4_format(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
	gint length, guint32 value, const char *format, ...) G_GNUC_PRINTF(7,8);

/** Add a FT_IPv6 to a proto_tree.
 @param tree the tree to append this item to
 @param hfindex field index
 @param tvb the tv buffer of the current data
 @param start start of data in tvb
 @param length length of data in tvb
 @param value_ptr data to display
 @return the newly created item */
WS_DLL_PUBLIC proto_item *
proto_tree_add_ipv6(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
	gint length, const struct e_in6_addr *value_ptr);

/** Add a formatted FT_IPv6 to a proto_tree, with the format generating
    the string for the value and with the field name being included
    automatically.
 @param tree the tree to append this item to
 @param hfindex field index
 @param tvb the tv buffer of the current data
 @param start start of data in tvb
 @param length length of data in tvb
 @param value_ptr data to display
 @param format printf like format string
 @param ... printf like parameters
 @return the newly created item */
WS_DLL_PUBLIC proto_item *
proto_tree_add_ipv6_format_value(proto_tree *tree, int hfindex, tvbuff_t *tvb,
	gint start, gint length, const struct e_in6_addr *value_ptr, const char *format,
	...) G_GNUC_PRINTF(7,8);

/** Add a formatted FT_IPv6 to a proto_tree, with the format generating
    the entire string for the entry, including any field name.
 @param tree the tree to append this item to
 @param hfindex field index
 @param tvb the tv buffer of the current data
 @param start start of data in tvb
 @param length length of data in tvb
 @param value_ptr data to display
 @param format printf like format string
 @param ... printf like parameters
 @return the newly created item */
WS_DLL_PUBLIC proto_item *
proto_tree_add_ipv6_format(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
	gint length, const struct e_in6_addr *value_ptr, const char *format, ...) G_GNUC_PRINTF(7,8);

/** Add a FT_ETHER to a proto_tree.
 @param tree the tree to append this item to
 @param hfindex field index
 @param tvb the tv buffer of the current data
 @param start start of data in tvb
 @param length length of data in tvb
 @param value data to display
 @return the newly created item */
WS_DLL_PUBLIC proto_item *
proto_tree_add_ether(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
	gint length, const guint8* value);

/** Add a formatted FT_ETHER to a proto_tree, with the format generating
    the string for the value and with the field name being included
    automatically.
 @param tree the tree to append this item to
 @param hfindex field index
 @param tvb the tv buffer of the current data
 @param start start of data in tvb
 @param length length of data in tvb
 @param value data to display
 @param format printf like format string
 @param ... printf like parameters
 @return the newly created item */
WS_DLL_PUBLIC proto_item *
proto_tree_add_ether_format_value(proto_tree *tree, int hfindex, tvbuff_t *tvb,
	gint start, gint length, const guint8* value, const char *format, ...)
	G_GNUC_PRINTF(7,8);

/** Add a formatted FT_ETHER to a proto_tree, with the format generating
    the entire string for the entry, including any field name.
 @param tree the tree to append this item to
 @param hfindex field index
 @param tvb the tv buffer of the current data
 @param start start of data in tvb
 @param length length of data in tvb
 @param value data to display
 @param format printf like format string
 @param ... printf like parameters
 @return the newly created item */
WS_DLL_PUBLIC proto_item *
proto_tree_add_ether_format(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
	gint length, const guint8* value, const char *format, ...) G_GNUC_PRINTF(7,8);

/** Add a FT_GUID to a proto_tree.
 @param tree the tree to append this item to
 @param hfindex field index
 @param tvb the tv buffer of the current data
 @param start start of data in tvb
 @param length length of data in tvb
 @param value_ptr data to display
 @return the newly created item */
WS_DLL_PUBLIC proto_item *
proto_tree_add_guid(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
	gint length, const e_guid_t *value_ptr);

/** Add a formatted FT_GUID to a proto_tree, with the format generating
    the string for the value and with the field name being included
    automatically.
 @param tree the tree to append this item to
 @param hfindex field index
 @param tvb the tv buffer of the current data
 @param start start of data in tvb
 @param length length of data in tvb
 @param value_ptr data to display
 @param format printf like format string
 @param ... printf like parameters
 @return the newly created item */
WS_DLL_PUBLIC proto_item *
proto_tree_add_guid_format_value(proto_tree *tree, int hfindex, tvbuff_t *tvb,
	gint start, gint length, const e_guid_t *value_ptr, const char *format,
	...) G_GNUC_PRINTF(7,8);

/** Add a formatted FT_GUID to a proto_tree, with the format generating
    the entire string for the entry, including any field name.
 @param tree the tree to append this item to
 @param hfindex field index
 @param tvb the tv buffer of the current data
 @param start start of data in tvb
 @param length length of data in tvb
 @param value_ptr data to display
 @param format printf like format string
 @param ... printf like parameters
 @return the newly created item */
WS_DLL_PUBLIC proto_item *
proto_tree_add_guid_format(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
	gint length, const e_guid_t *value_ptr, const char *format, ...) G_GNUC_PRINTF(7,8);

/** Add a FT_OID to a proto_tree.
 @param tree the tree to append this item to
 @param hfindex field index
 @param tvb the tv buffer of the current data
 @param start start of data in tvb
 @param length length of data in tvb
 @param value_ptr data to display
 @return the newly created item */
extern proto_item *
proto_tree_add_oid(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
	gint length, const guint8* value_ptr);

/** Add a formatted FT_OID to a proto_tree, with the format generating
    the string for the value and with the field name being included
    automatically.
 @param tree the tree to append this item to
 @param hfindex field index
 @param tvb the tv buffer of the current data
 @param start start of data in tvb
 @param length length of data in tvb
 @param value_ptr data to display
 @param format printf like format string
 @param ... printf like parameters
 @return the newly created item */
extern proto_item *
proto_tree_add_oid_format_value(proto_tree *tree, int hfindex, tvbuff_t *tvb,
	gint start, gint length, const guint8* value_ptr, const char *format,
	...) G_GNUC_PRINTF(7,8);

/** Add a formatted FT_OID to a proto_tree, with the format generating
    the entire string for the entry, including any field name.
 @param tree the tree to append this item to
 @param hfindex field index
 @param tvb the tv buffer of the current data
 @param start start of data in tvb
 @param length length of data in tvb
 @param value_ptr data to display
 @param format printf like format string
 @param ... printf like parameters
 @return the newly created item */
extern proto_item *
proto_tree_add_oid_format(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
	gint length, const guint8* value_ptr, const char *format, ...) G_GNUC_PRINTF(7,8);

/** Add a FT_STRING or FT_STRINGZPAD to a proto_tree.
 @param tree the tree to append this item to
 @param hfindex field index
 @param tvb the tv buffer of the current data
 @param start start of data in tvb
 @param length length of data in tvb
 @param value data to display
 @return the newly created item */
WS_DLL_PUBLIC proto_item *
proto_tree_add_string(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
	gint length, const char* value);

/** Add a formatted FT_STRING or FT_STRINGZPAD to a proto_tree, with the
    format generating the string for the value and with the field name
    being included automatically.
 @param tree the tree to append this item to
 @param hfindex field index
 @param tvb the tv buffer of the current data
 @param start start of data in tvb
 @param length length of data in tvb
 @param value data to display
 @param format printf like format string
 @param ... printf like parameters
 @return the newly created item */
WS_DLL_PUBLIC proto_item *
proto_tree_add_string_format_value(proto_tree *tree, int hfindex, tvbuff_t *tvb,
	gint start, gint length, const char* value, const char *format, ...)
	G_GNUC_PRINTF(7,8);

/** Add a formatted FT_STRING or FT_STRINGZPAD to a proto_tree, with the
    format generating the entire string for the entry, including any field
    name.
 @param tree the tree to append this item to
 @param hfindex field index
 @param tvb the tv buffer of the current data
 @param start start of data in tvb
 @param length length of data in tvb
 @param value data to display
 @param format printf like format string
 @param ... printf like parameters
 @return the newly created item */
WS_DLL_PUBLIC proto_item *
proto_tree_add_string_format(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
	gint length, const char* value, const char *format, ...) G_GNUC_PRINTF(7,8);

/** Add a FT_BOOLEAN to a proto_tree.
 @param tree the tree to append this item to
 @param hfindex field index
 @param tvb the tv buffer of the current data
 @param start start of data in tvb
 @param length length of data in tvb
 @param value data to display
 @return the newly created item */
WS_DLL_PUBLIC proto_item *
proto_tree_add_boolean(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
	gint length, guint32 value);

/** Add a formatted FT_BOOLEAN to a proto_tree, with the format generating
    the string for the value and with the field name being included
    automatically.
 @param tree the tree to append this item to
 @param hfindex field index
 @param tvb the tv buffer of the current data
 @param start start of data in tvb
 @param length length of data in tvb
 @param value data to display
 @param format printf like format string
 @param ... printf like parameters
 @return the newly created item */
WS_DLL_PUBLIC proto_item *
proto_tree_add_boolean_format_value(proto_tree *tree, int hfindex,
	tvbuff_t *tvb, gint start, gint length, guint32 value,
	const char *format, ...) G_GNUC_PRINTF(7,8);

/** Add a formatted FT_BOOLEAN to a proto_tree, with the format generating
    the entire string for the entry, including any field name.
 @param tree the tree to append this item to
 @param hfindex field index
 @param tvb the tv buffer of the current data
 @param start start of data in tvb
 @param length length of data in tvb
 @param value data to display
 @param format printf like format string
 @param ... printf like parameters
 @return the newly created item */
WS_DLL_PUBLIC proto_item *
proto_tree_add_boolean_format(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
	gint length, guint32 value, const char *format, ...) G_GNUC_PRINTF(7,8);

/** Add a FT_FLOAT to a proto_tree.
 @param tree the tree to append this item to
 @param hfindex field index
 @param tvb the tv buffer of the current data
 @param start start of data in tvb
 @param length length of data in tvb
 @param value data to display
 @return the newly created item */
WS_DLL_PUBLIC proto_item *
proto_tree_add_float(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
	gint length, float value);

/** Add a formatted FT_FLOAT to a proto_tree, with the format generating
    the string for the value and with the field name being included
    automatically.
 @param tree the tree to append this item to
 @param hfindex field index
 @param tvb the tv buffer of the current data
 @param start start of data in tvb
 @param length length of data in tvb
 @param value data to display
 @param format printf like format string
 @param ... printf like parameters
 @return the newly created item */
WS_DLL_PUBLIC proto_item *
proto_tree_add_float_format_value(proto_tree *tree, int hfindex, tvbuff_t *tvb,
	gint start, gint length, float value, const char *format, ...)
	G_GNUC_PRINTF(7,8);

/** Add a formatted FT_FLOAT to a proto_tree, with the format generating
    the entire string for the entry, including any field name.
 @param tree the tree to append this item to
 @param hfindex field index
 @param tvb the tv buffer of the current data
 @param start start of data in tvb
 @param length length of data in tvb
 @param value data to display
 @param format printf like format string
 @param ... printf like parameters
 @return the newly created item */
WS_DLL_PUBLIC proto_item *
proto_tree_add_float_format(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
	gint length, float value, const char *format, ...) G_GNUC_PRINTF(7,8);

/** Add a FT_DOUBLE to a proto_tree.
 @param tree the tree to append this item to
 @param hfindex field index
 @param tvb the tv buffer of the current data
 @param start start of data in tvb
 @param length length of data in tvb
 @param value data to display
 @return the newly created item */
WS_DLL_PUBLIC proto_item *
proto_tree_add_double(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
	gint length, double value);

/** Add a formatted FT_DOUBLE to a proto_tree, with the format generating
    the string for the value and with the field name being included
    automatically.
 @param tree the tree to append this item to
 @param hfindex field index
 @param tvb the tv buffer of the current data
 @param start start of data in tvb
 @param length length of data in tvb
 @param value data to display
 @param format printf like format string
 @param ... printf like parameters
 @return the newly created item */
WS_DLL_PUBLIC proto_item *
proto_tree_add_double_format_value(proto_tree *tree, int hfindex, tvbuff_t *tvb,
	gint start, gint length, double value, const char *format, ...)
	G_GNUC_PRINTF(7,8);

/** Add a formatted FT_DOUBLE to a proto_tree, with the format generating
    the entire string for the entry, including any field name.
 @param tree the tree to append this item to
 @param hfindex field index
 @param tvb the tv buffer of the current data
 @param start start of data in tvb
 @param length length of data in tvb
 @param value data to display
 @param format printf like format string
 @param ... printf like parameters
 @return the newly created item */
WS_DLL_PUBLIC proto_item *
proto_tree_add_double_format(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
	gint length, double value, const char *format, ...) G_GNUC_PRINTF(7,8);

/** Add one of FT_UINT8, FT_UINT16, FT_UINT24 or FT_UINT32 to a proto_tree.
 @param tree the tree to append this item to
 @param hfindex field index
 @param tvb the tv buffer of the current data
 @param start start of data in tvb
 @param length length of data in tvb
 @param value data to display
 @return the newly created item */
WS_DLL_PUBLIC proto_item *
proto_tree_add_uint(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
	gint length, guint32 value);

/** Add a formatted FT_UINT8, FT_UINT16, FT_UINT24 or FT_UINT32 to a proto_tree,
    with the format generating the string for the value and with the field
    name being included automatically.
 @param tree the tree to append this item to
 @param hfindex field index
 @param tvb the tv buffer of the current data
 @param start start of data in tvb
 @param length length of data in tvb
 @param value data to display
 @param format printf like format string
 @param ... printf like parameters
 @return the newly created item */
WS_DLL_PUBLIC proto_item *
proto_tree_add_uint_format_value(proto_tree *tree, int hfindex, tvbuff_t *tvb,
	gint start, gint length, guint32 value, const char *format, ...)
	G_GNUC_PRINTF(7,8);

/** Add a formatted FT_UINT8, FT_UINT16, FT_UINT24 or FT_UINT32 to a proto_tree,
    with the format generating the entire string for the entry, including any
    field name.
 @param tree the tree to append this item to
 @param hfindex field index
 @param tvb the tv buffer of the current data
 @param start start of data in tvb
 @param length length of data in tvb
 @param value data to display
 @param format printf like format string
 @param ... printf like parameters
 @return the newly created item */
WS_DLL_PUBLIC proto_item *
proto_tree_add_uint_format(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
	gint length, guint32 value, const char *format, ...) G_GNUC_PRINTF(7,8);

/** Add an FT_UINT64 to a proto_tree.
 @param tree the tree to append this item to
 @param hfindex field index
 @param tvb the tv buffer of the current data
 @param start start of data in tvb
 @param length length of data in tvb
 @param value data to display
 @return the newly created item */
WS_DLL_PUBLIC proto_item *
proto_tree_add_uint64(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
	gint length, guint64 value);

/** Add a formatted FT_UINT64 to a proto_tree, with the format generating
    the string for the value and with the field name being included
    automatically.
 @param tree the tree to append this item to
 @param hfindex field index
 @param tvb the tv buffer of the current data
 @param start start of data in tvb
 @param length length of data in tvb
 @param value data to display
 @param format printf like format string
 @param ... printf like parameters
 @return the newly created item */
WS_DLL_PUBLIC proto_item *
proto_tree_add_uint64_format_value(proto_tree *tree, int hfindex, tvbuff_t *tvb,
	gint start, gint length, guint64 value, const char *format, ...)
	G_GNUC_PRINTF(7,8);

/** Add a formatted FT_UINT64 to a proto_tree, with the format generating
    the entire string for the entry, including any field name.
 @param tree the tree to append this item to
 @param hfindex field index
 @param tvb the tv buffer of the current data
 @param start start of data in tvb
 @param length length of data in tvb
 @param value data to display
 @param format printf like format string
 @param ... printf like parameters
 @return the newly created item */
WS_DLL_PUBLIC proto_item *
proto_tree_add_uint64_format(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
	gint length, guint64 value, const char *format, ...) G_GNUC_PRINTF(7,8);

/** Add one of FT_INT8, FT_INT16, FT_INT24 or FT_INT32 to a proto_tree.
 @param tree the tree to append this item to
 @param hfindex field index
 @param tvb the tv buffer of the current data
 @param start start of data in tvb
 @param length length of data in tvb
 @param value data to display
 @return the newly created item */
WS_DLL_PUBLIC proto_item *
proto_tree_add_int(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
	gint length, gint32 value);

/** Add a formatted FT_INT8, FT_INT16, FT_INT24 or FT_INT32 to a proto_tree,
    with the format generating the string for the value and with the field
    name being included automatically.
 @param tree the tree to append this item to
 @param hfindex field index
 @param tvb the tv buffer of the current data
 @param start start of data in tvb
 @param length length of data in tvb
 @param value data to display
 @param format printf like format string
 @param ... printf like parameters
 @return the newly created item */
WS_DLL_PUBLIC proto_item *
proto_tree_add_int_format_value(proto_tree *tree, int hfindex, tvbuff_t *tvb,
	gint start, gint length, gint32 value, const char *format, ...)
	G_GNUC_PRINTF(7,8);

/** Add a formatted FT_INT8, FT_INT16, FT_INT24 or FT_INT32 to a proto_tree,
    with the format generating the entire string for the entry, including
    any field name.
 @param tree the tree to append this item to
 @param hfindex field index
 @param tvb the tv buffer of the current data
 @param start start of data in tvb
 @param length length of data in tvb
 @param value data to display
 @param format printf like format string
 @param ... printf like parameters
 @return the newly created item */
WS_DLL_PUBLIC proto_item *
proto_tree_add_int_format(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
	gint length, gint32 value, const char *format, ...) G_GNUC_PRINTF(7,8);

/** Add an FT_INT64 to a proto_tree.
 @param tree the tree to append this item to
 @param hfindex field index
 @param tvb the tv buffer of the current data
 @param start start of data in tvb
 @param length length of data in tvb
 @param value data to display
 @return the newly created item */
WS_DLL_PUBLIC proto_item *
proto_tree_add_int64(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
	gint length, gint64 value);

/** Add a formatted FT_INT64 to a proto_tree, with the format generating
    the string for the value and with the field name being included
    automatically.
 @param tree the tree to append this item to
 @param hfindex field index
 @param tvb the tv buffer of the current data
 @param start start of data in tvb
 @param length length of data in tvb
 @param value data to display
 @param format printf like format string
 @param ... printf like parameters
 @return the newly created item */
WS_DLL_PUBLIC proto_item *
proto_tree_add_int64_format_value(proto_tree *tree, int hfindex, tvbuff_t *tvb,
	gint start, gint length, gint64 value, const char *format, ...)
	G_GNUC_PRINTF(7,8);

/** Add a formatted FT_INT64 to a proto_tree, with the format generating
    the entire string for the entry, including any field name.
 @param tree the tree to append this item to
 @param hfindex field index
 @param tvb the tv buffer of the current data
 @param start start of data in tvb
 @param length length of data in tvb
 @param value data to display
 @param format printf like format string
 @param ... printf like parameters
 @return the newly created item */
WS_DLL_PUBLIC proto_item *
proto_tree_add_int64_format(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
	gint length, gint64 value, const char *format, ...) G_GNUC_PRINTF(7,8);

/** Add a FT_EUI64 to a proto_tree.
 @param tree the tree to append this item to
 @param hfindex field index
 @param tvb the tv buffer of the current data
 @param start start of data in tvb
 @param length length of data in tvb
 @param value data to display
 @return the newly created item */
WS_DLL_PUBLIC proto_item *
proto_tree_add_eui64(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
	gint length, const guint64 value);

/** Add a formatted FT_EUI64 to a proto_tree, with the format generating
    the string for the value and with the field name being included
    automatically.
 @param tree the tree to append this item to
 @param hfindex field index
 @param tvb the tv buffer of the current data
 @param start start of data in tvb
 @param length length of data in tvb
 @param value data to display
 @param format printf like format string
 @param ... printf like parameters
 @return the newly created item */
WS_DLL_PUBLIC proto_item *
proto_tree_add_eui64_format_value(proto_tree *tree, int hfindex, tvbuff_t *tvb,
	gint start, gint length, const guint64 value, const char *format, ...)
	G_GNUC_PRINTF(7,8);

/** Add a formatted FT_EUI64 to a proto_tree, with the format generating
    the entire string for the entry, including any field name.
 @param tree the tree to append this item to
 @param hfindex field index
 @param tvb the tv buffer of the current data
 @param start start of data in tvb
 @param length length of data in tvb
 @param value data to display
 @param format printf like format string
 @param ... printf like parameters
 @return the newly created item */
WS_DLL_PUBLIC proto_item *
proto_tree_add_eui64_format(proto_tree *tree, int hfindex, tvbuff_t *tvb, gint start,
	gint length, const guint64 value, const char *format, ...) G_GNUC_PRINTF(7,8);


/** Useful for quick debugging. Also sends string to STDOUT, so don't
    leave call to this function in production code.
 @param tree the tree to append the text to
 @param format printf like format string
 @param ... printf like parameters
 @return the newly created item */
WS_DLL_PUBLIC proto_item *
proto_tree_add_debug_text(proto_tree *tree, const char *format,
	...) G_GNUC_PRINTF(2,3);


/** Fill given label_str with string representation of field
 @param fi the item to get the info from
 @param label_str the string to fill
 @todo think about changing the parameter profile */
WS_DLL_PUBLIC void
proto_item_fill_label(field_info *fi, gchar *label_str);


/** Register a new protocol.
 @param name the full name of the new protocol
 @param short_name abbreviated name of the new protocol
 @param filter_name protocol name used for a display filter string
 @return the new protocol handle */
WS_DLL_PUBLIC int
proto_register_protocol(const char *name, const char *short_name, const char *filter_name);

/** Register a "helper" protocol (pino - protocol in name only).
 This is for dissectors that need distinguishing names and don't need the other
 features (like enable/disable).  One use case is a protocol with multiple dissection
 functions in a single dissector table needing unique "dissector names" to remove
 confusion with Decode As dialog.  Another use case is for a dissector table set
 up to handle TLVs within a single protocol (and allow "external" TLVs being
 registered through the dissector table).
 @param name the full name of the new protocol
 @param short_name abbreviated name of the new protocol
 @param filter_name protocol name used for a display filter string
 @param parent_proto the "real" protocol for the helper.  The parent decides enable/disable
 @param field_type FT_PROTOCOL or FT_BYTES.  Allows removal of "protocol highlighting" (FT_BYTES)
 if pino is part of TLV.
 @return the new protocol handle */
WS_DLL_PUBLIC int
proto_register_protocol_in_name_only(const char *name, const char *short_name, const char *filter_name, int parent_proto, enum ftenum field_type);

/** Deregister a protocol.
 @param short_name abbreviated name of the protocol
 @return TRUE if protocol is removed */
gboolean
proto_deregister_protocol(const char *short_name);

/** This type of function can be registered to get called whenever
    a given field was not found but a its prefix is matched;
    It can be used to procrastinate the hf array registration.
   @param match  what's being matched */
typedef void (*prefix_initializer_t)(const char* match);

/** Register a new prefix for delayed initialization of field arrays
    Note that the initializer function MAY NOT be called before the dissector
    is first called.  That is, dissectors using this function must be prepared
    to call the initializer before beginning dissection; they should do this by
    calling proto_registrar_get_byname() on one of the dissector's field names.
@param prefix the prefix for the new protocol
@param initializer function that will initialize the field array for the given prefix */
WS_DLL_PUBLIC void
proto_register_prefix(const char *prefix,  prefix_initializer_t initializer);

/** Initialize every remaining uninitialized prefix. */
WS_DLL_PUBLIC void proto_initialize_all_prefixes(void);

WS_DLL_PUBLIC void proto_register_fields_manual(const int parent, header_field_info **hfi, const int num_records);
WS_DLL_PUBLIC void proto_register_fields_section(const int parent, header_field_info *hfi, const int num_records);

/** Register a header_field array.
 @param parent the protocol handle from proto_register_protocol()
 @param hf the hf_register_info array
 @param num_records the number of records in hf */
WS_DLL_PUBLIC void
proto_register_field_array(const int parent, hf_register_info *hf, const int num_records);

/** Deregister an already registered field.
 @param parent the protocol handle from proto_register_protocol()
 @param hf_id the field to deregister */
WS_DLL_PUBLIC void
proto_deregister_field (const int parent, gint hf_id);

/** Add data to be freed when deregistered fields are freed.
 @param data a pointer to data to free */
WS_DLL_PUBLIC void
proto_add_deregistered_data (void *data);

/** Free fields deregistered in proto_deregister_field(). */
WS_DLL_PUBLIC void
proto_free_deregistered_fields (void);

/** Register a protocol subtree (ett) array.
 @param indices array of ett indices
 @param num_indices the number of records in indices */
WS_DLL_PUBLIC void
proto_register_subtree_array(gint *const *indices, const int num_indices);

/** Get name of registered header_field number n.
 @param n item # n (0-indexed)
 @return the name of this registered item */
WS_DLL_PUBLIC const char* proto_registrar_get_name(const int n);

/** Get abbreviation of registered header_field number n.
 @param n item # n (0-indexed)
 @return the abbreviation of this registered item */
WS_DLL_PUBLIC const char* proto_registrar_get_abbrev(const int n);

/** Get the header_field information based upon a field or protocol id.
 @param hfindex item # n (0-indexed)
 @return the registered item */
WS_DLL_PUBLIC header_field_info* proto_registrar_get_nth(guint hfindex);

/** Get the header_field information based upon a field name.
 @param field_name the field name to search for
 @return the registered item */
WS_DLL_PUBLIC header_field_info* proto_registrar_get_byname(const char *field_name);

/** Get the header_field id based upon a field name.
 @param field_name the field name to search for
 @return the field id for the registered item */
WS_DLL_PUBLIC int proto_registrar_get_id_byname(const char *field_name);

/** Get enum ftenum FT_ of registered header_field number n.
 @param n item # n (0-indexed)
 @return the registered item */
WS_DLL_PUBLIC enum ftenum proto_registrar_get_ftype(const int n);

/** Get parent protocol of registered header_field number n.
 @param n item # n (0-indexed)
 @return -1 if item _is_ a protocol */
WS_DLL_PUBLIC int proto_registrar_get_parent(const int n);

/** Is item # n a protocol?
 @param n item # n (0-indexed)
 @return TRUE if it's a protocol, FALSE if it's not */
WS_DLL_PUBLIC gboolean proto_registrar_is_protocol(const int n);

/** Get length of registered field according to field type.
 @param n item # n (0-indexed)
 @return 0 means undeterminable at registration time, -1 means unknown field */
extern gint proto_registrar_get_length(const int n);


/** Routines to use to iterate over the protocols and their fields;
 * they return the item number of the protocol in question or the
 * appropriate hfinfo pointer, and keep state in "*cookie". */
WS_DLL_PUBLIC int proto_get_first_protocol(void **cookie);
WS_DLL_PUBLIC int proto_get_data_protocol(void *cookie);
WS_DLL_PUBLIC int proto_get_next_protocol(void **cookie);
WS_DLL_PUBLIC header_field_info *proto_get_first_protocol_field(const int proto_id, void **cookie);
WS_DLL_PUBLIC header_field_info *proto_get_next_protocol_field(const int proto_id, void **cookie);

/** Check if a protocol name is already registered.
 @param name the name to search for
 @return proto_id */
WS_DLL_PUBLIC int proto_name_already_registered(const gchar *name);

/** Given a protocol's filter_name.
 @param filter_name the filter name to search for
 @return proto_id */
WS_DLL_PUBLIC int proto_get_id_by_filter_name(const gchar* filter_name);

/** Given a protocol's short name.
 @param short_name the protocol short name to search for
 @return proto_id */
WS_DLL_PUBLIC int proto_get_id_by_short_name(const gchar* short_name);

/** Can item # n decoding be disabled?
 @param proto_id protocol id (0-indexed)
 @return TRUE if it's a protocol, FALSE if it's not */
WS_DLL_PUBLIC gboolean proto_can_toggle_protocol(const int proto_id);

/** Get the "protocol_t" structure for the given protocol's item number.
 @param proto_id protocol id (0-indexed) */
WS_DLL_PUBLIC protocol_t *find_protocol_by_id(const int proto_id);

/** Get the protocol's name for the given protocol's item number.
 @param proto_id protocol id (0-indexed)
 @return its name */
WS_DLL_PUBLIC const char *proto_get_protocol_name(const int proto_id);

/** Get the protocol's item number, for the given protocol's "protocol_t".
 @return its proto_id */
WS_DLL_PUBLIC int proto_get_id(const protocol_t *protocol);

/** Get the protocol's short name, for the given protocol's "protocol_t".
 @return its short name. */
WS_DLL_PUBLIC const char *proto_get_protocol_short_name(const protocol_t *protocol);

/** Get the protocol's long name, for the given protocol's "protocol_t".
 @return its long name. */
WS_DLL_PUBLIC const char *proto_get_protocol_long_name(const protocol_t *protocol);

/** Is protocol's decoding enabled ?
 @return TRUE if decoding is enabled, FALSE if not */
WS_DLL_PUBLIC gboolean proto_is_protocol_enabled(const protocol_t *protocol);

/** Is protocol's enabled by default (most are)?
 @return TRUE if decoding is enabled by default, FALSE if not */
WS_DLL_PUBLIC gboolean proto_is_protocol_enabled_by_default(const protocol_t *protocol);

/** Is this a protocol in name only (i.e. not a real one)?
 @return TRUE if helper, FALSE if not */
WS_DLL_PUBLIC gboolean proto_is_pino(const protocol_t *protocol);

/** Get a protocol's filter name by its item number.
 @param proto_id protocol id (0-indexed)
 @return its filter name. */
WS_DLL_PUBLIC const char *proto_get_protocol_filter_name(const int proto_id);

/** Associate a heuristic dissector with a protocol
 * INTERNAL USE ONLY!!!
 * @param protocol to associate the heuristic with
 * @param short_name heuristic dissector's short name
 */
extern void proto_add_heuristic_dissector(protocol_t *protocol, const char *short_name);

/** Apply func to all heuristic dissectors of a protocol
 * @param protocol to iterate over heuristics
 * @param func function to execute on heuristics
 * @param user_data user-specific data for function
 */
WS_DLL_PUBLIC void proto_heuristic_dissector_foreach(const protocol_t *protocol, GFunc func, gpointer user_data);


/** Find commonly-used protocols in a layer list.
 * @param layers Protocol layer list
 * @param is_ip Set to TRUE if the layer list contains IPv4 or IPv6, otherwise
 * unchanged. May be NULL.
 * @param is_tcp Set to TRUE if the layer list contains TCP, otherwise
 * unchanged. May be NULL.
 * @param is_udp Set to TRUE if the layer list contains UDP, otherwise
 * unchanged. May be NULL.
 * @param is_sctp Set to TRUE if the layer list contains SCTP, otherwise
 * unchanged. May be NULL.
 * @param is_ssl Set to TRUE if the layer list contains SSL/TLS, otherwise
 * unchanged. May be NULL.
 * @param is_rtp Set to TRUE if the layer list contains RTP, otherwise
 * unchanged. May be NULL.
 * @param is_lte_rlc Set to TRUE if the layer list contains LTE RLC, otherwise
 * unchanged. May be NULL.
 */
WS_DLL_PUBLIC void proto_get_frame_protocols(const wmem_list_t *layers,
      gboolean *is_ip, gboolean *is_tcp, gboolean *is_udp, gboolean *is_sctp,
      gboolean *is_ssl, gboolean *is_rtp, gboolean *is_lte_rlc);

/** Check whether a protocol, specified by name, is in a layer list.
 * @param layers Protocol layer list
 * @param proto_name Name of protocol to find
 * @return TRUE if the protocol is found, FALSE if it isn't
 */
WS_DLL_PUBLIC gboolean proto_is_frame_protocol(const wmem_list_t *layers, const char* proto_name);

/** Mark protocol with the given item number as disabled by default.
 @param proto_id protocol id (0-indexed) */
WS_DLL_PUBLIC void proto_disable_by_default(const int proto_id);

/** Enable / Disable protocol of the given item number.
 @param proto_id protocol id (0-indexed)
 @param enabled enable / disable the protocol */
WS_DLL_PUBLIC void proto_set_decoding(const int proto_id, const gboolean enabled);

/** Re-enable all protocols that are not marked as disabled by default. */
WS_DLL_PUBLIC void proto_reenable_all(void);

/** Disable disabling/enabling of protocol of the given item number.
 @param proto_id protocol id (0-indexed) */
WS_DLL_PUBLIC void proto_set_cant_toggle(const int proto_id);

/** Checks for existence any protocol or field within a tree.
 @param tree "Protocols" are assumed to be a child of the [empty] root node.
 @param id hfindex of protocol or field
 @return TRUE = found, FALSE = not found
 @todo add explanation of id parameter */
extern gboolean proto_check_for_protocol_or_field(const proto_tree* tree, const int id);

/** Return GPtrArray* of field_info pointers for all hfindex that appear in
    tree. Only works with primed trees, and is fast.
 @param tree tree of interest
 @param hfindex primed hfindex
 @return GPtrArray pointer */
WS_DLL_PUBLIC GPtrArray* proto_get_finfo_ptr_array(const proto_tree *tree, const int hfindex);

/** Return whether we're tracking any interesting fields.
    Only works with primed trees, and is fast.
 @param tree tree of interest
 @return TRUE if we're tracking interesting fields */
WS_DLL_PUBLIC gboolean proto_tracking_interesting_fields(const proto_tree *tree);

/** Return GPtrArray* of field_info pointers for all hfindex that appear in
    tree. Works with any tree, primed or unprimed, and is slower than
    proto_get_finfo_ptr_array because it has to search through the tree.
 @param tree tree of interest
 @param hfindex index of field info of interest
 @return GPtrArry pointer */
WS_DLL_PUBLIC GPtrArray* proto_find_finfo(proto_tree *tree, const int hfindex);

/** Return GPtrArray* of field_info pointer for first hfindex that appear in
tree. Works with any tree, primed or unprimed, and is slower than
proto_get_finfo_ptr_array because it has to search through the tree.
@param tree tree of interest
@param hfindex index of field info of interest
@return GPtrArry pointer */
WS_DLL_PUBLIC GPtrArray* proto_find_first_finfo(proto_tree *tree, const int hfindex);

/** Return GPtrArray* of field_info pointers containg all hfindexes that appear
    in tree.
 @param tree tree of interest
 @return GPtrArry pointer */
WS_DLL_PUBLIC GPtrArray* proto_all_finfos(proto_tree *tree);

/** Dumps a glossary of the protocol registrations to STDOUT */
WS_DLL_PUBLIC void proto_registrar_dump_protocols(void);

/** Dumps a glossary of the field value strings or true/false strings to STDOUT */
WS_DLL_PUBLIC void proto_registrar_dump_values(void);

/** Dumps the number of protocol and field registrations to STDOUT.
 @return FALSE if we pre-allocated enough fields, TRUE otherwise. */
WS_DLL_PUBLIC gboolean proto_registrar_dump_fieldcount(void);

/** Dumps a glossary of the protocol and field registrations to STDOUT. */
WS_DLL_PUBLIC void proto_registrar_dump_fields(void);

/** Dumps a glossary field types and descriptive names to STDOUT */
WS_DLL_PUBLIC void proto_registrar_dump_ftypes(void);

/** Get string representation of display field value
 @param field_display field display value (one of BASE_ values)
 @return string representation of display field value or "Unknown" if doesn't exist */
WS_DLL_PUBLIC const char* proto_field_display_to_string(int field_display);

/** Number of elements in the tree_is_expanded array. With MSVC and a
 * libwireshark.dll, we need a special declaration. */
WS_DLL_PUBLIC int           num_tree_types;

/** Returns TRUE if subtrees of that type are to be expanded. */
WS_DLL_PUBLIC gboolean tree_expanded(int tree_type);

/** Sets if subtrees of that type are to be expanded. */
WS_DLL_PUBLIC void tree_expanded_set(int tree_type, gboolean value);

/** glib doesn't have g_ptr_array_len of all things!*/
#ifndef g_ptr_array_len
#define g_ptr_array_len(a)      ((a)?(a)->len:0)
#endif

WS_DLL_PUBLIC int
hfinfo_bitshift(const header_field_info *hfinfo);

struct epan_dissect;

/** Can we do a "match selected" on this field.
 @param finfo field_info
 @param edt epan dissecting
 @return TRUE if we can do a "match selected" on the field, FALSE otherwise. */
WS_DLL_PUBLIC gboolean
proto_can_match_selected(field_info *finfo, struct epan_dissect *edt);

/** Construct a "match selected" display filter string.
 @param finfo field_info
 @param edt epan dissecting
 @return the wmem NULL alloced display filter string.  Needs to be freed with wmem_free(NULL, ...) */
WS_DLL_PUBLIC char*
proto_construct_match_selected_string(field_info *finfo, struct epan_dissect *edt);

/** Find field from offset in tvb.
 @param tree tree of interest
 @param offset offset in the tvb
 @param tvb the tv buffer
 @return the corresponding field_info */
WS_DLL_PUBLIC field_info*
proto_find_field_from_offset(proto_tree *tree, guint offset, tvbuff_t *tvb);

/** Find undecoded bytes in a tree
 @param tree tree of interest
 @param length the length of the frame
 @return an array to be used as bitmap of decoded bytes */
WS_DLL_PUBLIC gchar*
proto_find_undecoded_data(proto_tree *tree, guint length);

/** This function will dissect a sequence of bytes that describe a bitmask.
 @param tree the tree to append this item to
 @param tvb the tv buffer of the current data
 @param offset start of data in tvb
 @param hf_hdr an 8/16/24/32/40/48/56/64 bit integer that describes the
        bitmask to be dissected.
        This field will form an expansion under which the individual fields
        of the bitmask are dissected and displayed.
        This field must be of the type FT_[U]INT{8|16|24|32|40|48|56|64}.
 @param ett subtree index
 @param fields an array of pointers to int that lists all the fields of the
        bitmask. These fields can be either of the type FT_BOOLEAN for flags
        or another integer of the same type/size as hf_hdr with a mask specified.
        This array is terminated by a NULL entry.
        FT_BOOLEAN bits that are set to 1 will have the name added to the expansion.
        FT_integer fields that have a value_string attached will have the
        matched string displayed on the expansion line.
 @param encoding big or little endian byte representation (ENC_BIG_ENDIAN/ENC_LITTLE_ENDIAN/ENC_HOST_ENDIAN)
 @return the newly created item */
WS_DLL_PUBLIC proto_item *
proto_tree_add_bitmask(proto_tree *tree, tvbuff_t *tvb, const guint offset,
		const int hf_hdr, const gint ett, const int **fields, const guint encoding);

/** This function will dissect a sequence of bytes that describe a bitmask.
    The value of the integer containing the bitmask is returned through
    a pointer.
 @param tree the tree to append this item to
 @param tvb the tv buffer of the current data
 @param offset start of data in tvb
 @param hf_hdr an 8/16/24/32/40/48/56/64 bit integer that describes the
        bitmask to be dissected.
        This field will form an expansion under which the individual fields
        of the bitmask are dissected and displayed.
        This field must be of the type FT_[U]INT{8|16|24|32|40|48|56|64}.
 @param ett subtree index
 @param fields an array of pointers to int that lists all the fields of the
        bitmask. These fields can be either of the type FT_BOOLEAN for flags
        or another integer of the same type/size as hf_hdr with a mask specified.
        This array is terminated by a NULL entry.
        FT_BOOLEAN bits that are set to 1 will have the name added to the expansion.
        FT_integer fields that have a value_string attached will have the
        matched string displayed on the expansion line.
 @param encoding big or little endian byte representation (ENC_BIG_ENDIAN/ENC_LITTLE_ENDIAN/ENC_HOST_ENDIAN)
 @param[out] retval points to a guint64 which will be set
 @return the newly created item, and *retval is set to the decoded value masked/shifted according to bitmask
 */
WS_DLL_PUBLIC proto_item *
proto_tree_add_bitmask_ret_uint64(proto_tree *tree, tvbuff_t *tvb, const guint offset,
		const int hf_hdr, const gint ett, const int **fields,
		const guint encoding, guint64 *retval);

/** This function will dissect a sequence of bytes that describe a bitmask.
    This has "filterable" bitmask header functionality of proto_tree_add_bitmask
    with the ability to control what data is appended to the header like
    proto_tree_add_bitmask_text
 @param tree the tree to append this item to
 @param tvb the tv buffer of the current data
 @param offset start of data in tvb
 @param hf_hdr an 8/16/24/32/40/48/56/64 bit integer that describes the
        bitmask to be dissected.
        This field will form an expansion under which the individual fields
        of the bitmask are dissected and displayed.
        This field must be of the type FT_[U]INT{8|16|24|32|40|48|56|64}.
 @param ett subtree index
 @param fields an array of pointers to int that lists all the fields of the
        bitmask. These fields can be either of the type FT_BOOLEAN for flags
        or another integer of the same type/size as hf_hdr with a mask specified.
        This array is terminated by a NULL entry.
        FT_BOOLEAN bits that are set to 1 will have the name added to the expansion.
        FT_integer fields that have a value_string attached will have the
        matched string displayed on the expansion line.
 @param encoding big or little endian byte representation (ENC_BIG_ENDIAN/ENC_LITTLE_ENDIAN/ENC_HOST_ENDIAN)
 @param flags bitmask field using BMT_NO_* flags to determine behavior
 @return the newly created item */
WS_DLL_PUBLIC proto_item *
proto_tree_add_bitmask_with_flags(proto_tree *tree, tvbuff_t *tvb, const guint offset,
		const int hf_hdr, const gint ett, const int **fields, const guint encoding, const int flags);

/** This function will dissect a sequence of bytes that describe a bitmask.
    This has "filterable" bitmask header functionality of proto_tree_add_bitmask
    with the ability to control what data is appended to the header like
    proto_tree_add_bitmask_text
    The value of the integer containing the bitmask is returned through
    a pointer.
 @param tree the tree to append this item to
 @param tvb the tv buffer of the current data
 @param offset start of data in tvb
 @param hf_hdr an 8/16/24/32/40/48/56/64 bit integer that describes the
        bitmask to be dissected.
        This field will form an expansion under which the individual fields
        of the bitmask are dissected and displayed.
        This field must be of the type FT_[U]INT{8|16|24|32|40|48|56|64}.
 @param ett subtree index
 @param fields an array of pointers to int that lists all the fields of the
        bitmask. These fields can be either of the type FT_BOOLEAN for flags
        or another integer of the same type/size as hf_hdr with a mask specified.
        This array is terminated by a NULL entry.
        FT_BOOLEAN bits that are set to 1 will have the name added to the expansion.
        FT_integer fields that have a value_string attached will have the
        matched string displayed on the expansion line.
 @param encoding big or little endian byte representation (ENC_BIG_ENDIAN/ENC_LITTLE_ENDIAN/ENC_HOST_ENDIAN)
 @param flags bitmask field using BMT_NO_* flags to determine behavior
 @param[out] retval points to a guint64 which will be set
 @return the newly created item, and *retval is set to the decoded value masked/shifted according to bitmask
 */
WS_DLL_PUBLIC proto_item *
proto_tree_add_bitmask_with_flags_ret_uint64(proto_tree *tree, tvbuff_t *tvb, const guint offset,
		const int hf_hdr, const gint ett, const int **fields,
		const guint encoding, const int flags, guint64 *retval);

/** This function will dissect a value that describe a bitmask. Similar to proto_tree_add_bitmask(),
    but with a passed in value (presumably because it can't be retrieved directly from tvb)
 @param tree the tree to append this item to
 @param tvb the tv buffer of the current data
 @param offset start of data in tvb
 @param hf_hdr an 8/16/24/32/64 bit integer that describes the bitmask to be dissected.
        This field will form an expansion under which the individual fields of the
        bitmask is dissected and displayed.
        This field must be of the type FT_[U]INT{8|16|24|32|64}.
 @param ett subtree index
 @param fields an array of pointers to int that lists all the fields of the
        bitmask. These fields can be either of the type FT_BOOLEAN for flags
        or another integer of the same type/size as hf_hdr with a mask specified.
        This array is terminated by a NULL entry.
        FT_BOOLEAN bits that are set to 1 will have the name added to the expansion.
        FT_integer fields that have a value_string attached will have the
        matched string displayed on the expansion line.
 @param value bitmask value
 @return the newly created item */
WS_DLL_PUBLIC proto_item *
proto_tree_add_bitmask_value(proto_tree *tree, tvbuff_t *tvb, const guint offset,
		const int hf_hdr, const gint ett, const int **fields, const guint64 value);

/** This function will dissect a value that describe a bitmask. Similar to proto_tree_add_bitmask(),
    but with a passed in value (presumably because it can't be retrieved directly from tvb)
    This has "filterable" bitmask header functionality of proto_tree_add_bitmask_value
    with the ability to control what data is appended to the header like
    proto_tree_add_bitmask_text
 @param tree the tree to append this item to
 @param tvb the tv buffer of the current data
 @param offset start of data in tvb
 @param hf_hdr an 8/16/24/32/64 bit integer that describes the bitmask to be dissected.
        This field will form an expansion under which the individual fields of the
        bitmask is dissected and displayed.
        This field must be of the type FT_[U]INT{8|16|24|32|64}.
 @param ett subtree index
 @param fields an array of pointers to int that lists all the fields of the
        bitmask. These fields can be either of the type FT_BOOLEAN for flags
        or another integer of the same type/size as hf_hdr with a mask specified.
        This array is terminated by a NULL entry.
        FT_BOOLEAN bits that are set to 1 will have the name added to the expansion.
        FT_integer fields that have a value_string attached will have the
        matched string displayed on the expansion line.
 @param value bitmask value
 @param flags bitmask field using BMT_NO_* flags to determine behavior
 @return the newly created item */
WS_DLL_PUBLIC proto_item *
proto_tree_add_bitmask_value_with_flags(proto_tree *tree, tvbuff_t *tvb, const guint offset,
		const int hf_hdr, const gint ett, const int **fields, const guint64 value, const int flags);

/** This function will dissect a sequence of bytes that describe a bitmask. Similar
    to proto_tree_add_bitmask(), but with no "header" item to group all of the fields
 @param tree the tree to append this item to
 @param tvb the tv buffer of the current data
 @param offset start of data in tvb
 @param len number of bytes of data
 @param fields an array of pointers to int that lists all the fields of the
        bitmask. These fields can be either of the type FT_BOOLEAN for flags
        or another integer of the same type/size as hf_hdr with a mask specified.
        This array is terminated by a NULL entry.
        FT_BOOLEAN bits that are set to 1 will have the name added to the expansion.
        FT_integer fields that have a value_string attached will have the
        matched string displayed on the expansion line.
 @param encoding big or little endian byte representation (ENC_BIG_ENDIAN/ENC_LITTLE_ENDIAN/ENC_HOST_ENDIAN)
 */
WS_DLL_PUBLIC void
proto_tree_add_bitmask_list(proto_tree *tree, tvbuff_t *tvb, const guint offset,
								const int len, const int **fields, const guint encoding);

/** This function will dissect a value that describe a bitmask. Similar to proto_tree_add_bitmask_list(),
    but with a passed in value (presumably because it can't be retrieved directly from tvb)
 @param tree the tree to append this item to
 @param tvb the tv buffer of the current data
 @param offset start of data in tvb
 @param len number of bytes of data
 @param fields an array of pointers to int that lists all the fields of the
        bitmask. These fields can be either of the type FT_BOOLEAN for flags
        or another integer of the same type/size as hf_hdr with a mask specified.
        This array is terminated by a NULL entry.
        FT_BOOLEAN bits that are set to 1 will have the name added to the expansion.
        FT_integer fields that have a value_string attached will have the
        matched string displayed on the expansion line.
 @param value bitmask value */
WS_DLL_PUBLIC void
proto_tree_add_bitmask_list_value(proto_tree *tree, tvbuff_t *tvb, const guint offset,
								const int len, const int **fields, const guint64 value);


/** This function will dissect a sequence of bytes that describe a bitmask.
 @param tree the tree to append this item to
 @param tvb the tv buffer of the current data
 @param offset start of data in tvb
 @param len number of bytes of data
 @param hf_hdr an 8/16/24/32 bit integer that describes the bitmask to be dissected.
        This field will form an expansion under which the individual fields of the
        bitmask are dissected and displayed.
        This field must be of the type FT_[U]INT{8|16|24|32}.
 @param ett subtree index
 @param fields an array of pointers to int that lists all the fields of the
        bitmask. These fields can be either of the type FT_BOOLEAN for flags
        or another integer with a mask specified.
        This array is terminated by a NULL entry.
        FT_BOOLEAN bits that are set to 1 will have the name added to the expansion.
        FT_integer fields that have a value_string attached will have the
        matched string displayed on the expansion line.
 @param exp expert info field used when decodable_len < len.  This also means this function
        should be called even when tree == NULL
 @param encoding big or little endian byte representation (ENC_BIG_ENDIAN/ENC_LITTLE_ENDIAN/ENC_HOST_ENDIAN)
 @return the newly created item */
WS_DLL_PUBLIC proto_item *
proto_tree_add_bitmask_len(proto_tree *tree, tvbuff_t *tvb, const guint offset, const guint len,
		const int hf_hdr, const gint ett, const int **fields, struct expert_field* exp, const guint encoding);

/** Add a text with a subtree of bitfields.
 @param tree the tree to append this item to
 @param tvb the tv buffer of the current data
 @param offset start of data in tvb
 @param len length of the field name
 @param name field name (NULL if bitfield contents should be used)
 @param fallback field name if none of bitfields were usable
 @param ett subtree index
 @param fields NULL-terminated array of bitfield indexes
 @param encoding big or little endian byte representation (ENC_BIG_ENDIAN/ENC_LITTLE_ENDIAN/ENC_HOST_ENDIAN)
 @param flags bitmask field
 @return the newly created item */
WS_DLL_PUBLIC proto_item *
proto_tree_add_bitmask_text(proto_tree *tree, tvbuff_t *tvb, const guint offset, const guint len,
		const char *name, const char *fallback,
		const gint ett, const int **fields, const guint encoding, const int flags);

#define BMT_NO_FLAGS	0x00	/**< Don't use any flags */
#define BMT_NO_APPEND	0x01	/**< Don't change the title at all */
#define BMT_NO_INT	0x02	/**< Don't add integral (non-boolean) fields to title */
#define BMT_NO_FALSE	0x04	/**< Don't add booleans unless they're TRUE */
#define BMT_NO_TFS	0x08	/**< Don't use true_false_string while formatting booleans */

/** Add bits to a proto_tree, using the text label registered to that item.
   The item is extracted from the tvbuff handed to it.
 @param tree the tree to append this item to
 @param hf_index field index. Fields for use with this function should have bitmask==0.
 @param tvb the tv buffer of the current data
 @param bit_offset start of data in tvb expressed in bits
 @param no_of_bits length of data in tvb expressed in bits
 @param encoding data encoding
 @return the newly created item */
WS_DLL_PUBLIC proto_item *
proto_tree_add_bits_item(proto_tree *tree, const int hf_index, tvbuff_t *tvb, const guint bit_offset, const gint no_of_bits, const guint encoding);

/** Add bits to a proto_tree, using the text label registered to that item.
*  The item is extracted from the tvbuff handed to it as a set
*  of crumbs (segments) of contiguous bits, specified by an
*  array of crumb_spec elements.  The crumbs are assembled to
*  create the value.  There may be any number of crumbs
*  specifying up to a total of 64 bits which may occur anywhere
*  within the tvb. If the span of the crumbs within the tvb is 4
*  octets or less, a bitmap of the crumbs is produced.
 @param tree the tree to append this item to
 @param hf_index field index. Fields for use with this function should have bitmask==0.
 @param tvb the tv buffer of the current data
 @param bit_offset of the first crumb in tvb expressed in bits
 @param crumb_spec pointer to crumb_spec array
 @param return_value if a pointer is passed here the value is returned.
 @return the newly created item */
WS_DLL_PUBLIC proto_item *
proto_tree_add_split_bits_item_ret_val(proto_tree *tree, const int hf_index, tvbuff_t *tvb,
                const guint bit_offset, const crumb_spec_t *crumb_spec,
                guint64 *return_value);


/** Add bitmap text for a split-bits crumb to a proto_tree,
*  using the text label registered to an item. The bitmap is
*  extracted from the tvbuff handed to it as a crumb (segment)
*  of contiguous bits, specified by one of an array of
*  crumb_spec elements. This function is normally called once
*  per crumb, after the call to
   proto_tree_add_split_bits_item_ret_val
 @param tree the tree to append this item to
 @param hf_index field index. Fields for use with this function should have bitmask==0.
 @param tvb the tv buffer of the current data
 @param bit_offset of the first crumb in tvb expressed in bits
 @param crumb_spec pointer to crumb_spec array
 @param crumb_index into the crumb_spec array for this crumb */
void
proto_tree_add_split_bits_crumb(proto_tree *tree, const int hf_index, tvbuff_t *tvb, const guint bit_offset,
                                const crumb_spec_t *crumb_spec, guint16 crumb_index);

/** Add bits to a proto_tree, using the text label registered to that item.
   The item is extracted from the tvbuff handed to it.
 @param tree the tree to append this item to
 @param hf_index field index. Fields for use with this function should have bitmask==0.
 @param tvb the tv buffer of the current data
 @param bit_offset start of data in tvb expressed in bits
 @param no_of_bits length of data in tvb expressed in bits
 @param return_value if a pointer is passed here the value is returned.
 @param encoding data encoding
 @return the newly created item */
WS_DLL_PUBLIC proto_item *
proto_tree_add_bits_ret_val(proto_tree *tree, const int hf_index, tvbuff_t *tvb, const guint bit_offset, const gint no_of_bits, guint64 *return_value, const guint encoding);

/** Add bits for a FT_UINT8, FT_UINT16, FT_UINT24 or FT_UINT32
    header field to a proto_tree, with the format generating the
    string for the value and with the field name being included automatically.
 @param tree the tree to append this item to
 @param hf_index field index
 @param tvb the tv buffer of the current data
 @param bit_offset start of data in tvb expressed in bits
 @param no_of_bits length of data in tvb expressed in bit
 @param value data to display
 @param format printf like format string
 @return the newly created item */
WS_DLL_PUBLIC proto_item *
proto_tree_add_uint_bits_format_value(proto_tree *tree, const int hf_index, tvbuff_t *tvb, const guint bit_offset, const gint no_of_bits,
	guint32 value, const char *format, ...) G_GNUC_PRINTF(7,8);

/** Add bits for a FT_UINT8, FT_UINT16, FT_UINT24 or FT_UINT32
    header field to a proto_tree, with the format generating the
    string for the value and with the field name being included automatically.
 @param tree the tree to append this item to
 @param hf_index field index
 @param tvb the tv buffer of the current data
 @param bit_offset start of data in tvb expressed in bits
 @param no_of_bits length of data in tvb expressed in bit
 @param value data to display
 @param format printf like format string
 @return the newly created item */
WS_DLL_PUBLIC proto_item *
proto_tree_add_uint64_bits_format_value(proto_tree *tree, const int hf_index, tvbuff_t *tvb, const guint bit_offset, const gint no_of_bits,
	guint64 value, const char *format, ...) G_GNUC_PRINTF(7,8);

/** Add bits for a FT_BOOLEAN header field to a proto_tree, with
    the format generating the string for the value and with the field
    name being included automatically.
 @param tree the tree to append this item to
 @param hf_index field index
 @param tvb the tv buffer of the current data
 @param bit_offset start of data in tvb expressed in bits
 @param no_of_bits length of data in tvb expressed in bit
 @param value data to display
 @param format printf like format string
 @param ... printf like parameters
 @return the newly created item */
proto_item *
proto_tree_add_boolean_bits_format_value(proto_tree *tree, const int hf_index, tvbuff_t *tvb, const guint bit_offset, const gint no_of_bits,
	guint32 value, const char *format, ...) G_GNUC_PRINTF(7,8);

/** Add bits for a FT_BOOLEAN header field to a proto_tree, with
    the format generating the string for the value and with the field
    name being included automatically.
 @param tree the tree to append this item to
 @param hf_index field index
 @param tvb the tv buffer of the current data
 @param bit_offset start of data in tvb expressed in bits
 @param no_of_bits length of data in tvb expressed in bit
 @param value data to display
 @param format printf like format string
 @param ... printf like parameters
 @return the newly created item */
proto_item *
proto_tree_add_boolean_bits_format_value64(proto_tree *tree, const int hf_index, tvbuff_t *tvb, const guint bit_offset, const gint no_of_bits,
	guint64 value, const char *format, ...) G_GNUC_PRINTF(7,8);

/** Add bits for a FT_INT8, FT_INT16, FT_INT24 or FT_INT32
    header field to a proto_tree, with the format generating the
    string for the value and with the field name being included automatically.
 @param tree the tree to append this item to
 @param hf_index field index
 @param tvb the tv buffer of the current data
 @param bit_offset start of data in tvb expressed in bits
 @param no_of_bits length of data in tvb expressed in bit
 @param value data to display
 @param format printf like format string
 @param ... printf like parameters
 @return the newly created item */
proto_item *
proto_tree_add_int_bits_format_value(proto_tree *tree, const int hf_index, tvbuff_t *tvb, const guint bit_offset, const gint no_of_bits,
	gint32 value, const char *format, ...) G_GNUC_PRINTF(7,8);

/** Add bits for a FT_INT8, FT_INT16, FT_INT24 or FT_INT32
    header field to a proto_tree, with the format generating the
    string for the value and with the field name being included automatically.
 @param tree the tree to append this item to
 @param hf_index field index
 @param tvb the tv buffer of the current data
 @param bit_offset start of data in tvb expressed in bits
 @param no_of_bits length of data in tvb expressed in bit
 @param value data to display
 @param format printf like format string
 @param ... printf like parameters
 @return the newly created item */
proto_item *
proto_tree_add_int64_bits_format_value(proto_tree *tree, const int hf_index, tvbuff_t *tvb, const guint bit_offset, const gint no_of_bits,
	gint64 value, const char *format, ...) G_GNUC_PRINTF(7,8);

/** Add bits for a FT_FLOAT header field to a proto_tree, with
    the format generating the string for the value and with the field
    name being included automatically.
 @param tree the tree to append this item to
 @param hf_index field index
 @param tvb the tv buffer of the current data
 @param bit_offset start of data in tvb expressed in bits
 @param no_of_bits length of data in tvb expressed in bit
 @param value data to display
 @param format printf like format string
 @param ... printf like parameters
 @return the newly created item */
proto_item *
proto_tree_add_float_bits_format_value(proto_tree *tree, const int hf_index, tvbuff_t *tvb, const guint bit_offset, const gint no_of_bits,
	float value, const char *format, ...) G_GNUC_PRINTF(7,8);


/** Add a FT_STRING with ENC_3GPP_TS_23_038_7BITS encoding to a proto_tree.
 @param tree the tree to append this item to
 @param hfindex field index
 @param tvb the tv buffer of the current data
 @param bit_offset start of data in tvb expressed in bits
 @param no_of_chars number of 7bits characters to display
 @return the newly created item */
WS_DLL_PUBLIC proto_item *
proto_tree_add_ts_23_038_7bits_item(proto_tree *tree, const int hfindex, tvbuff_t *tvb,
	const guint bit_offset, const gint no_of_chars);

/** Add a FT_STRING with ENC_ASCII_7BITS encoding to a proto_tree.
 @param tree the tree to append this item to
 @param hfindex field index
 @param tvb the tv buffer of the current data
 @param bit_offset start of data in tvb expressed in bits
 @param no_of_chars number of 7bits characters to display
 @return the newly created item */
WS_DLL_PUBLIC proto_item *
proto_tree_add_ascii_7bits_item(proto_tree *tree, const int hfindex, tvbuff_t *tvb,
	const guint bit_offset, const gint no_of_chars);

/** Add a checksum filed to a proto_tree.
 This standardizes the display of a checksum field as well as any
 status and expert info supporting it.
 @param tree the tree to append this item to
 @param tvb the tv buffer of the current data
 @param offset start of data in tvb
 @param hf_checksum checksum field index
 @param hf_checksum_status optional checksum status field index.  If none
 exists, just pass -1
 @param bad_checksum_expert optional expert info for a bad checksum.  If
 none exists, just pass NULL
 @param pinfo Packet info used for optional expert info.  If unused, NULL can
 be passed
 @param computed_checksum Checksum to verify against
 @param encoding data encoding of checksum from tvb
 @param flags bitmask field of PROTO_CHECKSUM_ options
 @return the newly created item */
WS_DLL_PUBLIC proto_item *
proto_tree_add_checksum(proto_tree *tree, tvbuff_t *tvb, const guint offset,
		const int hf_checksum, const int hf_checksum_status, struct expert_field* bad_checksum_expert,
		packet_info *pinfo, guint32 computed_checksum, const guint encoding, const guint flags);

typedef enum
{
	PROTO_CHECKSUM_E_BAD = 0,
	PROTO_CHECKSUM_E_GOOD,
	PROTO_CHECKSUM_E_UNVERIFIED,
	PROTO_CHECKSUM_E_NOT_PRESENT

} proto_checksum_enum_e;

#define PROTO_CHECKSUM_NO_FLAGS		0x00	/**< Don't use any flags */
#define PROTO_CHECKSUM_VERIFY		0x01	/**< Compare against computed checksum */
#define PROTO_CHECKSUM_GENERATED	0x02	/**< Checksum is generated only */
#define PROTO_CHECKSUM_IN_CKSUM		0x04	/**< Internet checksum routine used for computation */
#define PROTO_CHECKSUM_ZERO		0x08	/**< Computed checksum must be zero (but correct checksum can't be calculated) */
#define PROTO_CHECKSUM_NOT_PRESENT	0x10	/**< Checksum field is not present (Just populates status field) */

WS_DLL_PUBLIC const value_string proto_checksum_vals[];


/** Check if given string is a valid field name
 @param field_name the field name to check
 @return 0 if valid, else first illegal character */
WS_DLL_PUBLIC guchar
proto_check_field_name(const gchar *field_name);


/** Check if given string is a valid field name
 @param tree the tree to append this item to
 @param field_id the field id used for custom column
 @param occurrence the occurrence of the field used for custom column
 @param result the buffer to fill with the field string
 @param expr the filter expression
 @param size the size of the string buffer */
const gchar *
proto_custom_set(proto_tree* tree, GSList *field_id,
                             gint occurrence,
                             gchar *result,
                             gchar *expr, const int size );

/* #define HAVE_HFI_SECTION_INIT */

#ifdef HAVE_HFI_SECTION_INIT
 #define HFI_INIT(proto) __attribute__((section( "_data_" G_STRINGIFY(proto)))) __attribute__((aligned(sizeof(void *))))

 #define proto_register_fields(proto, hfi, count) \
	do { \
	extern header_field_info __start__data_ ##proto[]; \
	extern header_field_info __stop__data_ ##proto[]; \
\
	proto_register_fields_section(proto, __start__data_ ##proto, (int) (__stop__data_ ##proto - __start__data_ ##proto)); \
	} while(0)
#else
 #define HFI_INIT(proto)
 #define proto_register_fields(proto, hfi, count) \
	proto_register_fields_manual(proto, hfi, count)
#endif

#ifdef NEW_PROTO_TREE_API
#define proto_tree_add_item(tree, hfinfo, tvb, start, length, encoding) \
        proto_tree_add_item_new(tree, hfinfo, tvb, start, length, encoding)

#define proto_tree_add_item_ret_length(tree, hfinfo, tvb, start, length, encoding, retval) \
        proto_tree_add_item_new_ret_length(tree, hfinfo, tvb, start, length, encoding, retval)

#define proto_tree_add_boolean(tree, hfinfo, tvb, start, length, value) \
	proto_tree_add_boolean(tree, (hfinfo)->id, tvb, start, length, value)

#define proto_tree_add_string(tree, hfinfo, tvb, start, length, value) \
	proto_tree_add_string(tree, (hfinfo)->id, tvb, start, length, value)

#define proto_tree_add_time(tree, hfinfo, tvb, start, length, value) \
	proto_tree_add_time(tree, (hfinfo)->id, tvb, start, length, value)

#define proto_tree_add_int(tree, hfinfo, tvb, start, length, value) \
	proto_tree_add_int(tree, (hfinfo)->id, tvb, start, length, value)

#define proto_tree_add_uint(tree, hfinfo, tvb, start, length, value) \
	proto_tree_add_uint(tree, (hfinfo)->id, tvb, start, length, value)

#define proto_tree_add_float(tree, hfinfo, tvb, start, length, value) \
	proto_tree_add_float(tree, (hfinfo)->id, tvb, start, length, value)

#define proto_tree_add_float_format_value(tree, hfinfo, \
                  tvb, start, length, value, format, ...) \
	proto_tree_add_float_format_value(tree, (hfinfo)->id, \
         tvb, start, length, value, format, __VA_ARGS__)
#endif

/** @} */

#ifdef __cplusplus
}
#endif /* __cplusplus */

#endif /* proto.h */