Home Home > GIT Browse
summaryrefslogtreecommitdiff
blob: a067d30ce73e88fa86dce220e3f2002cac5be878 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
1747
1748
1749
1750
1751
1752
1753
1754
1755
1756
1757
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
1785
1786
1787
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
1809
1810
1811
1812
1813
1814
1815
1816
1817
1818
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
1830
1831
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
1899
1900
1901
1902
1903
1904
1905
1906
1907
1908
1909
1910
1911
1912
1913
1914
1915
1916
1917
1918
1919
1920
1921
1922
1923
1924
1925
1926
1927
1928
1929
1930
1931
1932
1933
1934
1935
1936
1937
1938
1939
1940
1941
1942
1943
1944
1945
1946
1947
1948
1949
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
2028
2029
2030
2031
2032
2033
2034
2035
2036
2037
2038
2039
2040
2041
2042
2043
2044
2045
2046
2047
2048
2049
2050
2051
2052
2053
2054
2055
2056
2057
2058
2059
2060
2061
2062
2063
2064
2065
2066
2067
2068
2069
2070
2071
2072
2073
2074
2075
2076
2077
2078
2079
2080
2081
2082
2083
2084
2085
2086
2087
2088
2089
2090
2091
2092
2093
2094
2095
2096
2097
2098
2099
2100
2101
2102
2103
2104
2105
2106
2107
2108
2109
2110
2111
2112
2113
2114
2115
2116
2117
2118
2119
2120
2121
2122
2123
2124
2125
2126
2127
2128
2129
2130
2131
2132
2133
2134
2135
2136
2137
2138
2139
2140
2141
2142
2143
2144
2145
2146
2147
2148
2149
2150
2151
2152
2153
2154
2155
2156
2157
2158
2159
2160
2161
2162
2163
2164
2165
2166
2167
2168
2169
2170
2171
2172
2173
2174
2175
2176
2177
2178
2179
2180
2181
2182
2183
2184
2185
2186
2187
2188
2189
2190
2191
2192
2193
2194
2195
2196
2197
2198
2199
2200
2201
2202
2203
2204
2205
2206
2207
2208
2209
2210
2211
2212
2213
2214
2215
2216
2217
2218
2219
2220
2221
2222
2223
2224
2225
2226
2227
2228
2229
2230
2231
2232
2233
2234
2235
2236
2237
2238
2239
2240
2241
2242
2243
2244
2245
2246
2247
2248
2249
2250
2251
2252
2253
2254
2255
2256
2257
2258
2259
2260
2261
2262
2263
2264
2265
2266
2267
2268
2269
2270
2271
2272
2273
2274
2275
2276
2277
2278
2279
2280
2281
2282
2283
2284
2285
2286
2287
2288
2289
2290
2291
2292
2293
2294
2295
2296
2297
2298
2299
2300
2301
2302
2303
2304
2305
2306
2307
2308
2309
2310
2311
2312
2313
2314
2315
2316
2317
2318
2319
2320
2321
2322
2323
2324
2325
2326
2327
2328
2329
2330
2331
2332
2333
2334
2335
2336
2337
2338
2339
2340
2341
2342
2343
2344
2345
2346
2347
2348
2349
2350
2351
2352
2353
2354
2355
2356
2357
2358
2359
2360
2361
2362
2363
2364
2365
2366
2367
2368
2369
2370
2371
2372
2373
2374
2375
2376
2377
2378
2379
2380
2381
2382
2383
2384
2385
2386
2387
2388
2389
2390
2391
2392
2393
2394
2395
2396
2397
2398
2399
2400
2401
2402
2403
2404
2405
2406
2407
2408
2409
2410
2411
2412
2413
2414
2415
2416
2417
2418
2419
2420
2421
2422
2423
2424
2425
2426
2427
2428
2429
2430
2431
2432
2433
2434
2435
2436
2437
2438
2439
2440
2441
2442
2443
2444
2445
2446
2447
2448
2449
2450
2451
2452
2453
2454
2455
2456
2457
2458
2459
2460
2461
2462
2463
2464
2465
2466
2467
2468
2469
2470
2471
2472
2473
2474
2475
2476
2477
2478
2479
2480
2481
2482
2483
2484
2485
2486
2487
2488
2489
2490
2491
2492
2493
2494
2495
2496
2497
2498
2499
2500
2501
2502
2503
2504
2505
2506
2507
2508
2509
2510
2511
2512
2513
2514
2515
2516
2517
2518
2519
2520
2521
2522
2523
2524
2525
2526
2527
2528
2529
2530
2531
2532
2533
2534
2535
2536
2537
2538
2539
2540
2541
2542
2543
2544
2545
2546
2547
2548
2549
2550
2551
2552
2553
2554
2555
2556
2557
2558
2559
2560
2561
2562
2563
2564
2565
2566
2567
2568
2569
2570
2571
2572
2573
2574
2575
2576
2577
2578
2579
2580
2581
2582
2583
2584
2585
2586
2587
2588
2589
2590
2591
2592
2593
2594
2595
2596
2597
2598
2599
2600
2601
2602
2603
2604
2605
2606
2607
2608
2609
2610
2611
2612
2613
2614
2615
2616
2617
2618
2619
2620
2621
2622
2623
2624
2625
2626
2627
2628
2629
2630
2631
2632
2633
2634
2635
2636
2637
2638
2639
2640
2641
2642
2643
2644
2645
2646
2647
2648
2649
2650
2651
2652
2653
2654
2655
2656
2657
2658
2659
2660
2661
2662
2663
2664
2665
2666
2667
2668
2669
2670
2671
2672
2673
2674
2675
2676
2677
2678
2679
2680
2681
2682
2683
2684
2685
2686
2687
2688
2689
2690
2691
2692
2693
2694
2695
2696
2697
2698
2699
2700
2701
2702
2703
2704
2705
2706
2707
2708
2709
2710
2711
2712
2713
2714
2715
2716
2717
2718
2719
2720
2721
2722
2723
2724
2725
2726
2727
2728
2729
2730
2731
2732
2733
2734
2735
2736
2737
2738
2739
2740
2741
2742
2743
2744
2745
2746
2747
2748
2749
2750
2751
2752
2753
2754
2755
2756
2757
2758
2759
2760
2761
2762
2763
2764
2765
2766
2767
2768
2769
2770
2771
2772
2773
2774
2775
2776
2777
2778
2779
2780
2781
2782
2783
2784
2785
2786
2787
2788
2789
2790
2791
2792
2793
2794
2795
2796
2797
2798
2799
2800
2801
2802
2803
2804
2805
2806
2807
2808
2809
2810
2811
2812
2813
2814
2815
2816
2817
2818
2819
2820
2821
2822
2823
2824
2825
2826
2827
2828
2829
2830
2831
2832
2833
2834
2835
2836
2837
2838
2839
2840
2841
2842
2843
2844
2845
2846
2847
2848
2849
2850
2851
2852
2853
2854
2855
2856
2857
2858
2859
2860
2861
2862
2863
2864
2865
2866
2867
2868
2869
2870
2871
2872
2873
2874
2875
2876
2877
2878
2879
2880
2881
2882
2883
2884
2885
2886
2887
2888
2889
2890
2891
2892
2893
2894
2895
2896
2897
2898
2899
2900
2901
2902
2903
2904
2905
2906
2907
2908
2909
2910
2911
2912
2913
2914
2915
2916
2917
2918
2919
2920
2921
2922
2923
2924
2925
2926
2927
2928
2929
2930
2931
2932
2933
2934
2935
2936
2937
2938
2939
2940
2941
2942
2943
2944
2945
2946
2947
2948
2949
2950
2951
2952
2953
2954
2955
2956
2957
2958
2959
2960
2961
2962
2963
2964
2965
2966
2967
2968
2969
2970
2971
2972
2973
2974
2975
2976
2977
2978
2979
2980
2981
2982
2983
2984
2985
2986
2987
2988
2989
2990
2991
2992
2993
2994
2995
2996
2997
2998
2999
3000
3001
3002
3003
3004
3005
3006
3007
3008
3009
3010
3011
3012
3013
3014
3015
3016
3017
3018
3019
3020
3021
3022
3023
3024
3025
3026
3027
3028
3029
3030
3031
3032
3033
3034
3035
3036
3037
3038
3039
3040
3041
3042
3043
3044
3045
3046
3047
3048
3049
3050
3051
3052
3053
3054
3055
3056
3057
3058
3059
3060
3061
3062
3063
3064
3065
3066
3067
3068
3069
3070
3071
3072
3073
3074
3075
3076
3077
3078
3079
3080
3081
3082
3083
3084
3085
3086
3087
3088
3089
3090
3091
3092
3093
3094
3095
3096
3097
3098
3099
3100
3101
3102
3103
3104
3105
3106
3107
3108
3109
3110
3111
3112
3113
3114
3115
3116
3117
3118
3119
3120
3121
3122
3123
3124
3125
3126
3127
3128
3129
3130
3131
3132
3133
3134
3135
3136
3137
3138
3139
3140
3141
3142
3143
3144
3145
3146
3147
3148
3149
3150
3151
3152
3153
3154
3155
3156
3157
3158
3159
3160
3161
3162
3163
3164
3165
3166
3167
3168
3169
3170
3171
3172
3173
3174
3175
3176
3177
3178
3179
3180
3181
3182
3183
3184
3185
3186
3187
3188
3189
3190
3191
3192
3193
3194
3195
3196
3197
3198
3199
3200
3201
3202
3203
3204
3205
3206
3207
3208
3209
3210
3211
3212
3213
3214
3215
3216
3217
3218
3219
3220
3221
3222
3223
3224
3225
3226
3227
3228
3229
3230
3231
3232
3233
3234
3235
3236
3237
3238
3239
3240
3241
3242
3243
3244
3245
3246
3247
3248
3249
3250
3251
3252
3253
3254
3255
3256
3257
3258
3259
3260
3261
3262
3263
3264
3265
3266
3267
3268
3269
3270
3271
3272
3273
3274
3275
3276
3277
3278
3279
3280
3281
3282
3283
3284
3285
3286
3287
3288
3289
3290
3291
3292
3293
3294
3295
3296
3297
3298
3299
3300
3301
3302
3303
3304
3305
3306
3307
3308
3309
3310
3311
3312
3313
3314
3315
3316
3317
3318
3319
3320
3321
3322
3323
3324
3325
3326
3327
3328
3329
3330
3331
3332
3333
3334
3335
3336
3337
3338
3339
3340
3341
3342
3343
3344
3345
3346
3347
3348
3349
3350
3351
3352
3353
3354
3355
3356
3357
3358
3359
3360
3361
3362
3363
3364
3365
3366
3367
3368
3369
3370
3371
#ifndef __NET_CFG80211_H
#define __NET_CFG80211_H
/*
 * 802.11 device and configuration interface
 *
 * Copyright 2006-2010	Johannes Berg <johannes@sipsolutions.net>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */

#include <linux/netdevice.h>
#include <linux/debugfs.h>
#include <linux/list.h>
#include <linux/netlink.h>
#include <linux/skbuff.h>
#include <linux/nl80211.h>
#include <linux/if_ether.h>
#include <linux/ieee80211.h>
#include <net/regulatory.h>

/**
 * DOC: Introduction
 *
 * cfg80211 is the configuration API for 802.11 devices in Linux. It bridges
 * userspace and drivers, and offers some utility functionality associated
 * with 802.11. cfg80211 must, directly or indirectly via mac80211, be used
 * by all modern wireless drivers in Linux, so that they offer a consistent
 * API through nl80211. For backward compatibility, cfg80211 also offers
 * wireless extensions to userspace, but hides them from drivers completely.
 *
 * Additionally, cfg80211 contains code to help enforce regulatory spectrum
 * use restrictions.
 */


/**
 * DOC: Device registration
 *
 * In order for a driver to use cfg80211, it must register the hardware device
 * with cfg80211. This happens through a number of hardware capability structs
 * described below.
 *
 * The fundamental structure for each device is the 'wiphy', of which each
 * instance describes a physical wireless device connected to the system. Each
 * such wiphy can have zero, one, or many virtual interfaces associated with
 * it, which need to be identified as such by pointing the network interface's
 * @ieee80211_ptr pointer to a &struct wireless_dev which further describes
 * the wireless part of the interface, normally this struct is embedded in the
 * network interface's private data area. Drivers can optionally allow creating
 * or destroying virtual interfaces on the fly, but without at least one or the
 * ability to create some the wireless device isn't useful.
 *
 * Each wiphy structure contains device capability information, and also has
 * a pointer to the various operations the driver offers. The definitions and
 * structures here describe these capabilities in detail.
 */

/*
 * wireless hardware capability structures
 */

/**
 * enum ieee80211_band - supported frequency bands
 *
 * The bands are assigned this way because the supported
 * bitrates differ in these bands.
 *
 * @IEEE80211_BAND_2GHZ: 2.4GHz ISM band
 * @IEEE80211_BAND_5GHZ: around 5GHz band (4.9-5.7)
 * @IEEE80211_NUM_BANDS: number of defined bands
 */
enum ieee80211_band {
	IEEE80211_BAND_2GHZ = NL80211_BAND_2GHZ,
	IEEE80211_BAND_5GHZ = NL80211_BAND_5GHZ,

	/* keep last */
	IEEE80211_NUM_BANDS
};

/**
 * enum ieee80211_channel_flags - channel flags
 *
 * Channel flags set by the regulatory control code.
 *
 * @IEEE80211_CHAN_DISABLED: This channel is disabled.
 * @IEEE80211_CHAN_PASSIVE_SCAN: Only passive scanning is permitted
 *	on this channel.
 * @IEEE80211_CHAN_NO_IBSS: IBSS is not allowed on this channel.
 * @IEEE80211_CHAN_RADAR: Radar detection is required on this channel.
 * @IEEE80211_CHAN_NO_HT40PLUS: extension channel above this channel
 * 	is not permitted.
 * @IEEE80211_CHAN_NO_HT40MINUS: extension channel below this channel
 * 	is not permitted.
 */
enum ieee80211_channel_flags {
	IEEE80211_CHAN_DISABLED		= 1<<0,
	IEEE80211_CHAN_PASSIVE_SCAN	= 1<<1,
	IEEE80211_CHAN_NO_IBSS		= 1<<2,
	IEEE80211_CHAN_RADAR		= 1<<3,
	IEEE80211_CHAN_NO_HT40PLUS	= 1<<4,
	IEEE80211_CHAN_NO_HT40MINUS	= 1<<5,
};

#define IEEE80211_CHAN_NO_HT40 \
	(IEEE80211_CHAN_NO_HT40PLUS | IEEE80211_CHAN_NO_HT40MINUS)

/**
 * struct ieee80211_channel - channel definition
 *
 * This structure describes a single channel for use
 * with cfg80211.
 *
 * @center_freq: center frequency in MHz
 * @hw_value: hardware-specific value for the channel
 * @flags: channel flags from &enum ieee80211_channel_flags.
 * @orig_flags: channel flags at registration time, used by regulatory
 *	code to support devices with additional restrictions
 * @band: band this channel belongs to.
 * @max_antenna_gain: maximum antenna gain in dBi
 * @max_power: maximum transmission power (in dBm)
 * @beacon_found: helper to regulatory code to indicate when a beacon
 *	has been found on this channel. Use regulatory_hint_found_beacon()
 *	to enable this, this is useful only on 5 GHz band.
 * @orig_mag: internal use
 * @orig_mpwr: internal use
 */
struct ieee80211_channel {
	enum ieee80211_band band;
	u16 center_freq;
	u16 hw_value;
	u32 flags;
	int max_antenna_gain;
	int max_power;
	bool beacon_found;
	u32 orig_flags;
	int orig_mag, orig_mpwr;
};

/**
 * enum ieee80211_rate_flags - rate flags
 *
 * Hardware/specification flags for rates. These are structured
 * in a way that allows using the same bitrate structure for
 * different bands/PHY modes.
 *
 * @IEEE80211_RATE_SHORT_PREAMBLE: Hardware can send with short
 *	preamble on this bitrate; only relevant in 2.4GHz band and
 *	with CCK rates.
 * @IEEE80211_RATE_MANDATORY_A: This bitrate is a mandatory rate
 *	when used with 802.11a (on the 5 GHz band); filled by the
 *	core code when registering the wiphy.
 * @IEEE80211_RATE_MANDATORY_B: This bitrate is a mandatory rate
 *	when used with 802.11b (on the 2.4 GHz band); filled by the
 *	core code when registering the wiphy.
 * @IEEE80211_RATE_MANDATORY_G: This bitrate is a mandatory rate
 *	when used with 802.11g (on the 2.4 GHz band); filled by the
 *	core code when registering the wiphy.
 * @IEEE80211_RATE_ERP_G: This is an ERP rate in 802.11g mode.
 */
enum ieee80211_rate_flags {
	IEEE80211_RATE_SHORT_PREAMBLE	= 1<<0,
	IEEE80211_RATE_MANDATORY_A	= 1<<1,
	IEEE80211_RATE_MANDATORY_B	= 1<<2,
	IEEE80211_RATE_MANDATORY_G	= 1<<3,
	IEEE80211_RATE_ERP_G		= 1<<4,
};

/**
 * struct ieee80211_rate - bitrate definition
 *
 * This structure describes a bitrate that an 802.11 PHY can
 * operate with. The two values @hw_value and @hw_value_short
 * are only for driver use when pointers to this structure are
 * passed around.
 *
 * @flags: rate-specific flags
 * @bitrate: bitrate in units of 100 Kbps
 * @hw_value: driver/hardware value for this rate
 * @hw_value_short: driver/hardware value for this rate when
 *	short preamble is used
 */
struct ieee80211_rate {
	u32 flags;
	u16 bitrate;
	u16 hw_value, hw_value_short;
};

/**
 * struct ieee80211_sta_ht_cap - STA's HT capabilities
 *
 * This structure describes most essential parameters needed
 * to describe 802.11n HT capabilities for an STA.
 *
 * @ht_supported: is HT supported by the STA
 * @cap: HT capabilities map as described in 802.11n spec
 * @ampdu_factor: Maximum A-MPDU length factor
 * @ampdu_density: Minimum A-MPDU spacing
 * @mcs: Supported MCS rates
 */
struct ieee80211_sta_ht_cap {
	u16 cap; /* use IEEE80211_HT_CAP_ */
	bool ht_supported;
	u8 ampdu_factor;
	u8 ampdu_density;
	struct ieee80211_mcs_info mcs;
};

/**
 * struct ieee80211_supported_band - frequency band definition
 *
 * This structure describes a frequency band a wiphy
 * is able to operate in.
 *
 * @channels: Array of channels the hardware can operate in
 *	in this band.
 * @band: the band this structure represents
 * @n_channels: Number of channels in @channels
 * @bitrates: Array of bitrates the hardware can operate with
 *	in this band. Must be sorted to give a valid "supported
 *	rates" IE, i.e. CCK rates first, then OFDM.
 * @n_bitrates: Number of bitrates in @bitrates
 * @ht_cap: HT capabilities in this band
 */
struct ieee80211_supported_band {
	struct ieee80211_channel *channels;
	struct ieee80211_rate *bitrates;
	enum ieee80211_band band;
	int n_channels;
	int n_bitrates;
	struct ieee80211_sta_ht_cap ht_cap;
};

/*
 * Wireless hardware/device configuration structures and methods
 */

/**
 * DOC: Actions and configuration
 *
 * Each wireless device and each virtual interface offer a set of configuration
 * operations and other actions that are invoked by userspace. Each of these
 * actions is described in the operations structure, and the parameters these
 * operations use are described separately.
 *
 * Additionally, some operations are asynchronous and expect to get status
 * information via some functions that drivers need to call.
 *
 * Scanning and BSS list handling with its associated functionality is described
 * in a separate chapter.
 */

/**
 * struct vif_params - describes virtual interface parameters
 * @use_4addr: use 4-address frames
 */
struct vif_params {
       int use_4addr;
};

/**
 * struct key_params - key information
 *
 * Information about a key
 *
 * @key: key material
 * @key_len: length of key material
 * @cipher: cipher suite selector
 * @seq: sequence counter (IV/PN) for TKIP and CCMP keys, only used
 *	with the get_key() callback, must be in little endian,
 *	length given by @seq_len.
 * @seq_len: length of @seq.
 */
struct key_params {
	u8 *key;
	u8 *seq;
	int key_len;
	int seq_len;
	u32 cipher;
};

/**
 * enum survey_info_flags - survey information flags
 *
 * @SURVEY_INFO_NOISE_DBM: noise (in dBm) was filled in
 * @SURVEY_INFO_IN_USE: channel is currently being used
 * @SURVEY_INFO_CHANNEL_TIME: channel active time (in ms) was filled in
 * @SURVEY_INFO_CHANNEL_TIME_BUSY: channel busy time was filled in
 * @SURVEY_INFO_CHANNEL_TIME_EXT_BUSY: extension channel busy time was filled in
 * @SURVEY_INFO_CHANNEL_TIME_RX: channel receive time was filled in
 * @SURVEY_INFO_CHANNEL_TIME_TX: channel transmit time was filled in
 *
 * Used by the driver to indicate which info in &struct survey_info
 * it has filled in during the get_survey().
 */
enum survey_info_flags {
	SURVEY_INFO_NOISE_DBM = 1<<0,
	SURVEY_INFO_IN_USE = 1<<1,
	SURVEY_INFO_CHANNEL_TIME = 1<<2,
	SURVEY_INFO_CHANNEL_TIME_BUSY = 1<<3,
	SURVEY_INFO_CHANNEL_TIME_EXT_BUSY = 1<<4,
	SURVEY_INFO_CHANNEL_TIME_RX = 1<<5,
	SURVEY_INFO_CHANNEL_TIME_TX = 1<<6,
};

/**
 * struct survey_info - channel survey response
 *
 * @channel: the channel this survey record reports, mandatory
 * @filled: bitflag of flags from &enum survey_info_flags
 * @noise: channel noise in dBm. This and all following fields are
 *     optional
 * @channel_time: amount of time in ms the radio spent on the channel
 * @channel_time_busy: amount of time the primary channel was sensed busy
 * @channel_time_ext_busy: amount of time the extension channel was sensed busy
 * @channel_time_rx: amount of time the radio spent receiving data
 * @channel_time_tx: amount of time the radio spent transmitting data
 *
 * Used by dump_survey() to report back per-channel survey information.
 *
 * This structure can later be expanded with things like
 * channel duty cycle etc.
 */
struct survey_info {
	struct ieee80211_channel *channel;
	u64 channel_time;
	u64 channel_time_busy;
	u64 channel_time_ext_busy;
	u64 channel_time_rx;
	u64 channel_time_tx;
	u32 filled;
	s8 noise;
};

/**
 * struct cfg80211_crypto_settings - Crypto settings
 * @wpa_versions: indicates which, if any, WPA versions are enabled
 *	(from enum nl80211_wpa_versions)
 * @cipher_group: group key cipher suite (or 0 if unset)
 * @n_ciphers_pairwise: number of AP supported unicast ciphers
 * @ciphers_pairwise: unicast key cipher suites
 * @n_akm_suites: number of AKM suites
 * @akm_suites: AKM suites
 * @control_port: Whether user space controls IEEE 802.1X port, i.e.,
 *	sets/clears %NL80211_STA_FLAG_AUTHORIZED. If true, the driver is
 *	required to assume that the port is unauthorized until authorized by
 *	user space. Otherwise, port is marked authorized by default.
 * @control_port_ethertype: the control port protocol that should be
 *	allowed through even on unauthorized ports
 * @control_port_no_encrypt: TRUE to prevent encryption of control port
 *	protocol frames.
 */
struct cfg80211_crypto_settings {
	u32 wpa_versions;
	u32 cipher_group;
	int n_ciphers_pairwise;
	u32 ciphers_pairwise[NL80211_MAX_NR_CIPHER_SUITES];
	int n_akm_suites;
	u32 akm_suites[NL80211_MAX_NR_AKM_SUITES];
	bool control_port;
	__be16 control_port_ethertype;
	bool control_port_no_encrypt;
};

/**
 * struct beacon_parameters - beacon parameters
 *
 * Used to configure the beacon for an interface.
 *
 * @head: head portion of beacon (before TIM IE)
 *     or %NULL if not changed
 * @tail: tail portion of beacon (after TIM IE)
 *     or %NULL if not changed
 * @interval: beacon interval or zero if not changed
 * @dtim_period: DTIM period or zero if not changed
 * @head_len: length of @head
 * @tail_len: length of @tail
 * @ssid: SSID to be used in the BSS (note: may be %NULL if not provided from
 *	user space)
 * @ssid_len: length of @ssid
 * @hidden_ssid: whether to hide the SSID in Beacon/Probe Response frames
 * @crypto: crypto settings
 * @privacy: the BSS uses privacy
 * @auth_type: Authentication type (algorithm)
 * @beacon_ies: extra information element(s) to add into Beacon frames or %NULL
 * @beacon_ies_len: length of beacon_ies in octets
 * @proberesp_ies: extra information element(s) to add into Probe Response
 *	frames or %NULL
 * @proberesp_ies_len: length of proberesp_ies in octets
 * @assocresp_ies: extra information element(s) to add into (Re)Association
 *	Response frames or %NULL
 * @assocresp_ies_len: length of assocresp_ies in octets
 * @probe_resp_len: length of probe response template (@probe_resp)
 * @probe_resp: probe response template (AP mode only)
 */
struct beacon_parameters {
	u8 *head, *tail;
	int interval, dtim_period;
	int head_len, tail_len;
	const u8 *ssid;
	size_t ssid_len;
	enum nl80211_hidden_ssid hidden_ssid;
	struct cfg80211_crypto_settings crypto;
	bool privacy;
	enum nl80211_auth_type auth_type;
	const u8 *beacon_ies;
	size_t beacon_ies_len;
	const u8 *proberesp_ies;
	size_t proberesp_ies_len;
	const u8 *assocresp_ies;
	size_t assocresp_ies_len;
	int probe_resp_len;
	u8 *probe_resp;
};

/**
 * enum plink_action - actions to perform in mesh peers
 *
 * @PLINK_ACTION_INVALID: action 0 is reserved
 * @PLINK_ACTION_OPEN: start mesh peer link establishment
 * @PLINK_ACTION_BLOCK: block traffic from this mesh peer
 */
enum plink_actions {
	PLINK_ACTION_INVALID,
	PLINK_ACTION_OPEN,
	PLINK_ACTION_BLOCK,
};

/**
 * enum station_parameters_apply_mask - station parameter values to apply
 * @STATION_PARAM_APPLY_UAPSD: apply new uAPSD parameters (uapsd_queues, max_sp)
 *
 * Not all station parameters have in-band "no change" signalling,
 * for those that don't these flags will are used.
 */
enum station_parameters_apply_mask {
	STATION_PARAM_APPLY_UAPSD = BIT(0),
};

/**
 * struct station_parameters - station parameters
 *
 * Used to change and create a new station.
 *
 * @vlan: vlan interface station should belong to
 * @supported_rates: supported rates in IEEE 802.11 format
 *	(or NULL for no change)
 * @supported_rates_len: number of supported rates
 * @sta_flags_mask: station flags that changed
 *	(bitmask of BIT(NL80211_STA_FLAG_...))
 * @sta_flags_set: station flags values
 *	(bitmask of BIT(NL80211_STA_FLAG_...))
 * @listen_interval: listen interval or -1 for no change
 * @aid: AID or zero for no change
 * @plink_action: plink action to take
 * @plink_state: set the peer link state for a station
 * @ht_capa: HT capabilities of station
 * @uapsd_queues: bitmap of queues configured for uapsd. same format
 *	as the AC bitmap in the QoS info field
 * @max_sp: max Service Period. same format as the MAX_SP in the
 *	QoS info field (but already shifted down)
 * @sta_modify_mask: bitmap indicating which parameters changed
 *	(for those that don't have a natural "no change" value),
 *	see &enum station_parameters_apply_mask
 */
struct station_parameters {
	u8 *supported_rates;
	struct net_device *vlan;
	u32 sta_flags_mask, sta_flags_set;
	u32 sta_modify_mask;
	int listen_interval;
	u16 aid;
	u8 supported_rates_len;
	u8 plink_action;
	u8 plink_state;
	struct ieee80211_ht_cap *ht_capa;
	u8 uapsd_queues;
	u8 max_sp;
};

/**
 * enum station_info_flags - station information flags
 *
 * Used by the driver to indicate which info in &struct station_info
 * it has filled in during get_station() or dump_station().
 *
 * @STATION_INFO_INACTIVE_TIME: @inactive_time filled
 * @STATION_INFO_RX_BYTES: @rx_bytes filled
 * @STATION_INFO_TX_BYTES: @tx_bytes filled
 * @STATION_INFO_LLID: @llid filled
 * @STATION_INFO_PLID: @plid filled
 * @STATION_INFO_PLINK_STATE: @plink_state filled
 * @STATION_INFO_SIGNAL: @signal filled
 * @STATION_INFO_TX_BITRATE: @txrate fields are filled
 *  (tx_bitrate, tx_bitrate_flags and tx_bitrate_mcs)
 * @STATION_INFO_RX_PACKETS: @rx_packets filled
 * @STATION_INFO_TX_PACKETS: @tx_packets filled
 * @STATION_INFO_TX_RETRIES: @tx_retries filled
 * @STATION_INFO_TX_FAILED: @tx_failed filled
 * @STATION_INFO_RX_DROP_MISC: @rx_dropped_misc filled
 * @STATION_INFO_SIGNAL_AVG: @signal_avg filled
 * @STATION_INFO_RX_BITRATE: @rxrate fields are filled
 * @STATION_INFO_BSS_PARAM: @bss_param filled
 * @STATION_INFO_CONNECTED_TIME: @connected_time filled
 * @STATION_INFO_ASSOC_REQ_IES: @assoc_req_ies filled
 * @STATION_INFO_STA_FLAGS: @sta_flags filled
 * @STATION_INFO_BEACON_LOSS_COUNT: @beacon_loss_count filled
 */
enum station_info_flags {
	STATION_INFO_INACTIVE_TIME	= 1<<0,
	STATION_INFO_RX_BYTES		= 1<<1,
	STATION_INFO_TX_BYTES		= 1<<2,
	STATION_INFO_LLID		= 1<<3,
	STATION_INFO_PLID		= 1<<4,
	STATION_INFO_PLINK_STATE	= 1<<5,
	STATION_INFO_SIGNAL		= 1<<6,
	STATION_INFO_TX_BITRATE		= 1<<7,
	STATION_INFO_RX_PACKETS		= 1<<8,
	STATION_INFO_TX_PACKETS		= 1<<9,
	STATION_INFO_TX_RETRIES		= 1<<10,
	STATION_INFO_TX_FAILED		= 1<<11,
	STATION_INFO_RX_DROP_MISC	= 1<<12,
	STATION_INFO_SIGNAL_AVG		= 1<<13,
	STATION_INFO_RX_BITRATE		= 1<<14,
	STATION_INFO_BSS_PARAM          = 1<<15,
	STATION_INFO_CONNECTED_TIME	= 1<<16,
	STATION_INFO_ASSOC_REQ_IES	= 1<<17,
	STATION_INFO_STA_FLAGS		= 1<<18,
	STATION_INFO_BEACON_LOSS_COUNT	= 1<<19
};

/**
 * enum station_info_rate_flags - bitrate info flags
 *
 * Used by the driver to indicate the specific rate transmission
 * type for 802.11n transmissions.
 *
 * @RATE_INFO_FLAGS_MCS: @tx_bitrate_mcs filled
 * @RATE_INFO_FLAGS_40_MHZ_WIDTH: 40 Mhz width transmission
 * @RATE_INFO_FLAGS_SHORT_GI: 400ns guard interval
 */
enum rate_info_flags {
	RATE_INFO_FLAGS_MCS		= 1<<0,
	RATE_INFO_FLAGS_40_MHZ_WIDTH	= 1<<1,
	RATE_INFO_FLAGS_SHORT_GI	= 1<<2,
};

/**
 * struct rate_info - bitrate information
 *
 * Information about a receiving or transmitting bitrate
 *
 * @flags: bitflag of flags from &enum rate_info_flags
 * @mcs: mcs index if struct describes a 802.11n bitrate
 * @legacy: bitrate in 100kbit/s for 802.11abg
 */
struct rate_info {
	u8 flags;
	u8 mcs;
	u16 legacy;
};

/**
 * enum station_info_rate_flags - bitrate info flags
 *
 * Used by the driver to indicate the specific rate transmission
 * type for 802.11n transmissions.
 *
 * @BSS_PARAM_FLAGS_CTS_PROT: whether CTS protection is enabled
 * @BSS_PARAM_FLAGS_SHORT_PREAMBLE: whether short preamble is enabled
 * @BSS_PARAM_FLAGS_SHORT_SLOT_TIME: whether short slot time is enabled
 */
enum bss_param_flags {
	BSS_PARAM_FLAGS_CTS_PROT	= 1<<0,
	BSS_PARAM_FLAGS_SHORT_PREAMBLE	= 1<<1,
	BSS_PARAM_FLAGS_SHORT_SLOT_TIME	= 1<<2,
};

/**
 * struct sta_bss_parameters - BSS parameters for the attached station
 *
 * Information about the currently associated BSS
 *
 * @flags: bitflag of flags from &enum bss_param_flags
 * @dtim_period: DTIM period for the BSS
 * @beacon_interval: beacon interval
 */
struct sta_bss_parameters {
	u8 flags;
	u8 dtim_period;
	u16 beacon_interval;
};

/**
 * struct station_info - station information
 *
 * Station information filled by driver for get_station() and dump_station.
 *
 * @filled: bitflag of flags from &enum station_info_flags
 * @connected_time: time(in secs) since a station is last connected
 * @inactive_time: time since last station activity (tx/rx) in milliseconds
 * @rx_bytes: bytes received from this station
 * @tx_bytes: bytes transmitted to this station
 * @llid: mesh local link id
 * @plid: mesh peer link id
 * @plink_state: mesh peer link state
 * @signal: signal strength of last received packet in dBm
 * @signal_avg: signal strength average in dBm
 * @txrate: current unicast bitrate from this station
 * @rxrate: current unicast bitrate to this station
 * @rx_packets: packets received from this station
 * @tx_packets: packets transmitted to this station
 * @tx_retries: cumulative retry counts
 * @tx_failed: number of failed transmissions (retries exceeded, no ACK)
 * @rx_dropped_misc:  Dropped for un-specified reason.
 * @bss_param: current BSS parameters
 * @generation: generation number for nl80211 dumps.
 *	This number should increase every time the list of stations
 *	changes, i.e. when a station is added or removed, so that
 *	userspace can tell whether it got a consistent snapshot.
 * @assoc_req_ies: IEs from (Re)Association Request.
 *	This is used only when in AP mode with drivers that do not use
 *	user space MLME/SME implementation. The information is provided for
 *	the cfg80211_new_sta() calls to notify user space of the IEs.
 * @assoc_req_ies_len: Length of assoc_req_ies buffer in octets.
 * @sta_flags: station flags mask & values
 * @beacon_loss_count: Number of times beacon loss event has triggered.
 */
struct station_info {
	u32 filled;
	u32 connected_time;
	u32 inactive_time;
	u32 rx_bytes;
	u32 tx_bytes;
	u16 llid;
	u16 plid;
	u8 plink_state;
	s8 signal;
	s8 signal_avg;
	struct rate_info txrate;
	struct rate_info rxrate;
	u32 rx_packets;
	u32 tx_packets;
	u32 tx_retries;
	u32 tx_failed;
	u32 rx_dropped_misc;
	struct sta_bss_parameters bss_param;
	struct nl80211_sta_flag_update sta_flags;

	int generation;

	const u8 *assoc_req_ies;
	size_t assoc_req_ies_len;

	u32 beacon_loss_count;

	/*
	 * Note: Add a new enum station_info_flags value for each new field and
	 * use it to check which fields are initialized.
	 */
};

/**
 * enum monitor_flags - monitor flags
 *
 * Monitor interface configuration flags. Note that these must be the bits
 * according to the nl80211 flags.
 *
 * @MONITOR_FLAG_FCSFAIL: pass frames with bad FCS
 * @MONITOR_FLAG_PLCPFAIL: pass frames with bad PLCP
 * @MONITOR_FLAG_CONTROL: pass control frames
 * @MONITOR_FLAG_OTHER_BSS: disable BSSID filtering
 * @MONITOR_FLAG_COOK_FRAMES: report frames after processing
 */
enum monitor_flags {
	MONITOR_FLAG_FCSFAIL		= 1<<NL80211_MNTR_FLAG_FCSFAIL,
	MONITOR_FLAG_PLCPFAIL		= 1<<NL80211_MNTR_FLAG_PLCPFAIL,
	MONITOR_FLAG_CONTROL		= 1<<NL80211_MNTR_FLAG_CONTROL,
	MONITOR_FLAG_OTHER_BSS		= 1<<NL80211_MNTR_FLAG_OTHER_BSS,
	MONITOR_FLAG_COOK_FRAMES	= 1<<NL80211_MNTR_FLAG_COOK_FRAMES,
};

/**
 * enum mpath_info_flags -  mesh path information flags
 *
 * Used by the driver to indicate which info in &struct mpath_info it has filled
 * in during get_station() or dump_station().
 *
 * @MPATH_INFO_FRAME_QLEN: @frame_qlen filled
 * @MPATH_INFO_SN: @sn filled
 * @MPATH_INFO_METRIC: @metric filled
 * @MPATH_INFO_EXPTIME: @exptime filled
 * @MPATH_INFO_DISCOVERY_TIMEOUT: @discovery_timeout filled
 * @MPATH_INFO_DISCOVERY_RETRIES: @discovery_retries filled
 * @MPATH_INFO_FLAGS: @flags filled
 */
enum mpath_info_flags {
	MPATH_INFO_FRAME_QLEN		= BIT(0),
	MPATH_INFO_SN			= BIT(1),
	MPATH_INFO_METRIC		= BIT(2),
	MPATH_INFO_EXPTIME		= BIT(3),
	MPATH_INFO_DISCOVERY_TIMEOUT	= BIT(4),
	MPATH_INFO_DISCOVERY_RETRIES	= BIT(5),
	MPATH_INFO_FLAGS		= BIT(6),
};

/**
 * struct mpath_info - mesh path information
 *
 * Mesh path information filled by driver for get_mpath() and dump_mpath().
 *
 * @filled: bitfield of flags from &enum mpath_info_flags
 * @frame_qlen: number of queued frames for this destination
 * @sn: target sequence number
 * @metric: metric (cost) of this mesh path
 * @exptime: expiration time for the mesh path from now, in msecs
 * @flags: mesh path flags
 * @discovery_timeout: total mesh path discovery timeout, in msecs
 * @discovery_retries: mesh path discovery retries
 * @generation: generation number for nl80211 dumps.
 *	This number should increase every time the list of mesh paths
 *	changes, i.e. when a station is added or removed, so that
 *	userspace can tell whether it got a consistent snapshot.
 */
struct mpath_info {
	u32 filled;
	u32 frame_qlen;
	u32 sn;
	u32 metric;
	u32 exptime;
	u32 discovery_timeout;
	u8 discovery_retries;
	u8 flags;

	int generation;
};

/**
 * struct bss_parameters - BSS parameters
 *
 * Used to change BSS parameters (mainly for AP mode).
 *
 * @use_cts_prot: Whether to use CTS protection
 *	(0 = no, 1 = yes, -1 = do not change)
 * @use_short_preamble: Whether the use of short preambles is allowed
 *	(0 = no, 1 = yes, -1 = do not change)
 * @use_short_slot_time: Whether the use of short slot time is allowed
 *	(0 = no, 1 = yes, -1 = do not change)
 * @basic_rates: basic rates in IEEE 802.11 format
 *	(or NULL for no change)
 * @basic_rates_len: number of basic rates
 * @ap_isolate: do not forward packets between connected stations
 * @ht_opmode: HT Operation mode
 * 	(u16 = opmode, -1 = do not change)
 */
struct bss_parameters {
	int use_cts_prot;
	int use_short_preamble;
	int use_short_slot_time;
	u8 *basic_rates;
	u8 basic_rates_len;
	int ap_isolate;
	int ht_opmode;
};

/*
 * struct mesh_config - 802.11s mesh configuration
 *
 * These parameters can be changed while the mesh is active.
 */
struct mesh_config {
	/* Timeouts in ms */
	/* Mesh plink management parameters */
	u16 dot11MeshRetryTimeout;
	u16 dot11MeshConfirmTimeout;
	u16 dot11MeshHoldingTimeout;
	u16 dot11MeshMaxPeerLinks;
	u8  dot11MeshMaxRetries;
	u8  dot11MeshTTL;
	/* ttl used in path selection information elements */
	u8  element_ttl;
	bool auto_open_plinks;
	/* HWMP parameters */
	u8  dot11MeshHWMPmaxPREQretries;
	u32 path_refresh_time;
	u16 min_discovery_timeout;
	u32 dot11MeshHWMPactivePathTimeout;
	u16 dot11MeshHWMPpreqMinInterval;
	u16 dot11MeshHWMPperrMinInterval;
	u16 dot11MeshHWMPnetDiameterTraversalTime;
	u8  dot11MeshHWMPRootMode;
	u16 dot11MeshHWMPRannInterval;
	/* This is missnamed in draft 12.0: dot11MeshGateAnnouncementProtocol
	 * set to true only means that the station will announce others it's a
	 * mesh gate, but not necessarily using the gate announcement protocol.
	 * Still keeping the same nomenclature to be in sync with the spec. */
	bool  dot11MeshGateAnnouncementProtocol;
};

/**
 * struct mesh_setup - 802.11s mesh setup configuration
 * @mesh_id: the mesh ID
 * @mesh_id_len: length of the mesh ID, at least 1 and at most 32 bytes
 * @path_sel_proto: which path selection protocol to use
 * @path_metric: which metric to use
 * @ie: vendor information elements (optional)
 * @ie_len: length of vendor information elements
 * @is_authenticated: this mesh requires authentication
 * @is_secure: this mesh uses security
 * @mcast_rate: multicat rate for Mesh Node [6Mbps is the default for 802.11a]
 *
 * These parameters are fixed when the mesh is created.
 */
struct mesh_setup {
	const u8 *mesh_id;
	u8 mesh_id_len;
	u8  path_sel_proto;
	u8  path_metric;
	const u8 *ie;
	u8 ie_len;
	bool is_authenticated;
	bool is_secure;
	int mcast_rate[IEEE80211_NUM_BANDS];
};

/**
 * struct ieee80211_txq_params - TX queue parameters
 * @queue: TX queue identifier (NL80211_TXQ_Q_*)
 * @txop: Maximum burst time in units of 32 usecs, 0 meaning disabled
 * @cwmin: Minimum contention window [a value of the form 2^n-1 in the range
 *	1..32767]
 * @cwmax: Maximum contention window [a value of the form 2^n-1 in the range
 *	1..32767]
 * @aifs: Arbitration interframe space [0..255]
 */
struct ieee80211_txq_params {
	enum nl80211_txq_q queue;
	u16 txop;
	u16 cwmin;
	u16 cwmax;
	u8 aifs;
};

/* from net/wireless.h */
struct wiphy;

/**
 * DOC: Scanning and BSS list handling
 *
 * The scanning process itself is fairly simple, but cfg80211 offers quite
 * a bit of helper functionality. To start a scan, the scan operation will
 * be invoked with a scan definition. This scan definition contains the
 * channels to scan, and the SSIDs to send probe requests for (including the
 * wildcard, if desired). A passive scan is indicated by having no SSIDs to
 * probe. Additionally, a scan request may contain extra information elements
 * that should be added to the probe request. The IEs are guaranteed to be
 * well-formed, and will not exceed the maximum length the driver advertised
 * in the wiphy structure.
 *
 * When scanning finds a BSS, cfg80211 needs to be notified of that, because
 * it is responsible for maintaining the BSS list; the driver should not
 * maintain a list itself. For this notification, various functions exist.
 *
 * Since drivers do not maintain a BSS list, there are also a number of
 * functions to search for a BSS and obtain information about it from the
 * BSS structure cfg80211 maintains. The BSS list is also made available
 * to userspace.
 */

/**
 * struct cfg80211_ssid - SSID description
 * @ssid: the SSID
 * @ssid_len: length of the ssid
 */
struct cfg80211_ssid {
	u8 ssid[IEEE80211_MAX_SSID_LEN];
	u8 ssid_len;
};

/**
 * struct cfg80211_scan_request - scan request description
 *
 * @ssids: SSIDs to scan for (active scan only)
 * @n_ssids: number of SSIDs
 * @channels: channels to scan on.
 * @n_channels: total number of channels to scan
 * @ie: optional information element(s) to add into Probe Request or %NULL
 * @ie_len: length of ie in octets
 * @rates: bitmap of rates to advertise for each band
 * @wiphy: the wiphy this was for
 * @dev: the interface
 * @aborted: (internal) scan request was notified as aborted
 * @no_cck: used to send probe requests at non CCK rate in 2GHz band
 */
struct cfg80211_scan_request {
	struct cfg80211_ssid *ssids;
	int n_ssids;
	u32 n_channels;
	const u8 *ie;
	size_t ie_len;

	u32 rates[IEEE80211_NUM_BANDS];

	/* internal */
	struct wiphy *wiphy;
	struct net_device *dev;
	bool aborted;
	bool no_cck;

	/* keep last */
	struct ieee80211_channel *channels[0];
};

/**
 * struct cfg80211_match_set - sets of attributes to match
 *
 * @ssid: SSID to be matched
 */
struct cfg80211_match_set {
	struct cfg80211_ssid ssid;
};

/**
 * struct cfg80211_sched_scan_request - scheduled scan request description
 *
 * @ssids: SSIDs to scan for (passed in the probe_reqs in active scans)
 * @n_ssids: number of SSIDs
 * @n_channels: total number of channels to scan
 * @interval: interval between each scheduled scan cycle
 * @ie: optional information element(s) to add into Probe Request or %NULL
 * @ie_len: length of ie in octets
 * @match_sets: sets of parameters to be matched for a scan result
 * 	entry to be considered valid and to be passed to the host
 * 	(others are filtered out).
 *	If ommited, all results are passed.
 * @n_match_sets: number of match sets
 * @wiphy: the wiphy this was for
 * @dev: the interface
 * @channels: channels to scan
 */
struct cfg80211_sched_scan_request {
	struct cfg80211_ssid *ssids;
	int n_ssids;
	u32 n_channels;
	u32 interval;
	const u8 *ie;
	size_t ie_len;
	struct cfg80211_match_set *match_sets;
	int n_match_sets;

	/* internal */
	struct wiphy *wiphy;
	struct net_device *dev;

	/* keep last */
	struct ieee80211_channel *channels[0];
};

/**
 * enum cfg80211_signal_type - signal type
 *
 * @CFG80211_SIGNAL_TYPE_NONE: no signal strength information available
 * @CFG80211_SIGNAL_TYPE_MBM: signal strength in mBm (100*dBm)
 * @CFG80211_SIGNAL_TYPE_UNSPEC: signal strength, increasing from 0 through 100
 */
enum cfg80211_signal_type {
	CFG80211_SIGNAL_TYPE_NONE,
	CFG80211_SIGNAL_TYPE_MBM,
	CFG80211_SIGNAL_TYPE_UNSPEC,
};

/**
 * struct cfg80211_bss - BSS description
 *
 * This structure describes a BSS (which may also be a mesh network)
 * for use in scan results and similar.
 *
 * @channel: channel this BSS is on
 * @bssid: BSSID of the BSS
 * @tsf: timestamp of last received update
 * @beacon_interval: the beacon interval as from the frame
 * @capability: the capability field in host byte order
 * @information_elements: the information elements (Note that there
 *	is no guarantee that these are well-formed!); this is a pointer to
 *	either the beacon_ies or proberesp_ies depending on whether Probe
 *	Response frame has been received
 * @len_information_elements: total length of the information elements
 * @beacon_ies: the information elements from the last Beacon frame
 * @len_beacon_ies: total length of the beacon_ies
 * @proberesp_ies: the information elements from the last Probe Response frame
 * @len_proberesp_ies: total length of the proberesp_ies
 * @signal: signal strength value (type depends on the wiphy's signal_type)
 * @free_priv: function pointer to free private data
 * @priv: private area for driver use, has at least wiphy->bss_priv_size bytes
 */
struct cfg80211_bss {
	struct ieee80211_channel *channel;

	u8 bssid[ETH_ALEN];
	u64 tsf;
	u16 beacon_interval;
	u16 capability;
	u8 *information_elements;
	size_t len_information_elements;
	u8 *beacon_ies;
	size_t len_beacon_ies;
	u8 *proberesp_ies;
	size_t len_proberesp_ies;

	s32 signal;

	void (*free_priv)(struct cfg80211_bss *bss);
	u8 priv[0] __attribute__((__aligned__(sizeof(void *))));
};

/**
 * ieee80211_bss_get_ie - find IE with given ID
 * @bss: the bss to search
 * @ie: the IE ID
 * Returns %NULL if not found.
 */
const u8 *ieee80211_bss_get_ie(struct cfg80211_bss *bss, u8 ie);


/**
 * struct cfg80211_auth_request - Authentication request data
 *
 * This structure provides information needed to complete IEEE 802.11
 * authentication.
 *
 * @bss: The BSS to authenticate with.
 * @auth_type: Authentication type (algorithm)
 * @ie: Extra IEs to add to Authentication frame or %NULL
 * @ie_len: Length of ie buffer in octets
 * @key_len: length of WEP key for shared key authentication
 * @key_idx: index of WEP key for shared key authentication
 * @key: WEP key for shared key authentication
 * @local_state_change: This is a request for a local state only, i.e., no
 *	Authentication frame is to be transmitted and authentication state is
 *	to be changed without having to wait for a response from the peer STA
 *	(AP).
 */
struct cfg80211_auth_request {
	struct cfg80211_bss *bss;
	const u8 *ie;
	size_t ie_len;
	enum nl80211_auth_type auth_type;
	const u8 *key;
	u8 key_len, key_idx;
	bool local_state_change;
};

/**
 * enum cfg80211_assoc_req_flags - Over-ride default behaviour in association.
 *
 * @ASSOC_REQ_DISABLE_HT:  Disable HT (802.11n)
 */
enum cfg80211_assoc_req_flags {
	ASSOC_REQ_DISABLE_HT		= BIT(0),
};

/**
 * struct cfg80211_assoc_request - (Re)Association request data
 *
 * This structure provides information needed to complete IEEE 802.11
 * (re)association.
 * @bss: The BSS to associate with.
 * @ie: Extra IEs to add to (Re)Association Request frame or %NULL
 * @ie_len: Length of ie buffer in octets
 * @use_mfp: Use management frame protection (IEEE 802.11w) in this association
 * @crypto: crypto settings
 * @prev_bssid: previous BSSID, if not %NULL use reassociate frame
 * @flags:  See &enum cfg80211_assoc_req_flags
 * @ht_capa:  HT Capabilities over-rides.  Values set in ht_capa_mask
 *   will be used in ht_capa.  Un-supported values will be ignored.
 * @ht_capa_mask:  The bits of ht_capa which are to be used.
 */
struct cfg80211_assoc_request {
	struct cfg80211_bss *bss;
	const u8 *ie, *prev_bssid;
	size_t ie_len;
	struct cfg80211_crypto_settings crypto;
	bool use_mfp;
	u32 flags;
	struct ieee80211_ht_cap ht_capa;
	struct ieee80211_ht_cap ht_capa_mask;
};

/**
 * struct cfg80211_deauth_request - Deauthentication request data
 *
 * This structure provides information needed to complete IEEE 802.11
 * deauthentication.
 *
 * @bss: the BSS to deauthenticate from
 * @ie: Extra IEs to add to Deauthentication frame or %NULL
 * @ie_len: Length of ie buffer in octets
 * @reason_code: The reason code for the deauthentication
 * @local_state_change: This is a request for a local state only, i.e., no
 *	Deauthentication frame is to be transmitted.
 */
struct cfg80211_deauth_request {
	struct cfg80211_bss *bss;
	const u8 *ie;
	size_t ie_len;
	u16 reason_code;
	bool local_state_change;
};

/**
 * struct cfg80211_disassoc_request - Disassociation request data
 *
 * This structure provides information needed to complete IEEE 802.11
 * disassocation.
 *
 * @bss: the BSS to disassociate from
 * @ie: Extra IEs to add to Disassociation frame or %NULL
 * @ie_len: Length of ie buffer in octets
 * @reason_code: The reason code for the disassociation
 * @local_state_change: This is a request for a local state only, i.e., no
 *	Disassociation frame is to be transmitted.
 */
struct cfg80211_disassoc_request {
	struct cfg80211_bss *bss;
	const u8 *ie;
	size_t ie_len;
	u16 reason_code;
	bool local_state_change;
};

/**
 * struct cfg80211_ibss_params - IBSS parameters
 *
 * This structure defines the IBSS parameters for the join_ibss()
 * method.
 *
 * @ssid: The SSID, will always be non-null.
 * @ssid_len: The length of the SSID, will always be non-zero.
 * @bssid: Fixed BSSID requested, maybe be %NULL, if set do not
 *	search for IBSSs with a different BSSID.
 * @channel: The channel to use if no IBSS can be found to join.
 * @channel_type: channel type (HT mode)
 * @channel_fixed: The channel should be fixed -- do not search for
 *	IBSSs to join on other channels.
 * @ie: information element(s) to include in the beacon
 * @ie_len: length of that
 * @beacon_interval: beacon interval to use
 * @privacy: this is a protected network, keys will be configured
 *	after joining
 * @basic_rates: bitmap of basic rates to use when creating the IBSS
 * @mcast_rate: per-band multicast rate index + 1 (0: disabled)
 */
struct cfg80211_ibss_params {
	u8 *ssid;
	u8 *bssid;
	struct ieee80211_channel *channel;
	enum nl80211_channel_type channel_type;
	u8 *ie;
	u8 ssid_len, ie_len;
	u16 beacon_interval;
	u32 basic_rates;
	bool channel_fixed;
	bool privacy;
	int mcast_rate[IEEE80211_NUM_BANDS];
};

/**
 * struct cfg80211_connect_params - Connection parameters
 *
 * This structure provides information needed to complete IEEE 802.11
 * authentication and association.
 *
 * @channel: The channel to use or %NULL if not specified (auto-select based
 *	on scan results)
 * @bssid: The AP BSSID or %NULL if not specified (auto-select based on scan
 *	results)
 * @ssid: SSID
 * @ssid_len: Length of ssid in octets
 * @auth_type: Authentication type (algorithm)
 * @ie: IEs for association request
 * @ie_len: Length of assoc_ie in octets
 * @privacy: indicates whether privacy-enabled APs should be used
 * @crypto: crypto settings
 * @key_len: length of WEP key for shared key authentication
 * @key_idx: index of WEP key for shared key authentication
 * @key: WEP key for shared key authentication
 * @flags:  See &enum cfg80211_assoc_req_flags
 * @ht_capa:  HT Capabilities over-rides.  Values set in ht_capa_mask
 *   will be used in ht_capa.  Un-supported values will be ignored.
 * @ht_capa_mask:  The bits of ht_capa which are to be used.
 */
struct cfg80211_connect_params {
	struct ieee80211_channel *channel;
	u8 *bssid;
	u8 *ssid;
	size_t ssid_len;
	enum nl80211_auth_type auth_type;
	u8 *ie;
	size_t ie_len;
	bool privacy;
	struct cfg80211_crypto_settings crypto;
	const u8 *key;
	u8 key_len, key_idx;
	u32 flags;
	struct ieee80211_ht_cap ht_capa;
	struct ieee80211_ht_cap ht_capa_mask;
};

/**
 * enum wiphy_params_flags - set_wiphy_params bitfield values
 * @WIPHY_PARAM_RETRY_SHORT: wiphy->retry_short has changed
 * @WIPHY_PARAM_RETRY_LONG: wiphy->retry_long has changed
 * @WIPHY_PARAM_FRAG_THRESHOLD: wiphy->frag_threshold has changed
 * @WIPHY_PARAM_RTS_THRESHOLD: wiphy->rts_threshold has changed
 * @WIPHY_PARAM_COVERAGE_CLASS: coverage class changed
 */
enum wiphy_params_flags {
	WIPHY_PARAM_RETRY_SHORT		= 1 << 0,
	WIPHY_PARAM_RETRY_LONG		= 1 << 1,
	WIPHY_PARAM_FRAG_THRESHOLD	= 1 << 2,
	WIPHY_PARAM_RTS_THRESHOLD	= 1 << 3,
	WIPHY_PARAM_COVERAGE_CLASS	= 1 << 4,
};

/*
 * cfg80211_bitrate_mask - masks for bitrate control
 */
struct cfg80211_bitrate_mask {
	struct {
		u32 legacy;
		/* TODO: add support for masking MCS rates; e.g.: */
		/* u8 mcs[IEEE80211_HT_MCS_MASK_LEN]; */
	} control[IEEE80211_NUM_BANDS];
};
/**
 * struct cfg80211_pmksa - PMK Security Association
 *
 * This structure is passed to the set/del_pmksa() method for PMKSA
 * caching.
 *
 * @bssid: The AP's BSSID.
 * @pmkid: The PMK material itself.
 */
struct cfg80211_pmksa {
	u8 *bssid;
	u8 *pmkid;
};

/**
 * struct cfg80211_wowlan_trig_pkt_pattern - packet pattern
 * @mask: bitmask where to match pattern and where to ignore bytes,
 *	one bit per byte, in same format as nl80211
 * @pattern: bytes to match where bitmask is 1
 * @pattern_len: length of pattern (in bytes)
 *
 * Internal note: @mask and @pattern are allocated in one chunk of
 * memory, free @mask only!
 */
struct cfg80211_wowlan_trig_pkt_pattern {
	u8 *mask, *pattern;
	int pattern_len;
};

/**
 * struct cfg80211_wowlan - Wake on Wireless-LAN support info
 *
 * This structure defines the enabled WoWLAN triggers for the device.
 * @any: wake up on any activity -- special trigger if device continues
 *	operating as normal during suspend
 * @disconnect: wake up if getting disconnected
 * @magic_pkt: wake up on receiving magic packet
 * @patterns: wake up on receiving packet matching a pattern
 * @n_patterns: number of patterns
 * @gtk_rekey_failure: wake up on GTK rekey failure
 * @eap_identity_req: wake up on EAP identity request packet
 * @four_way_handshake: wake up on 4-way handshake
 * @rfkill_release: wake up when rfkill is released
 */
struct cfg80211_wowlan {
	bool any, disconnect, magic_pkt, gtk_rekey_failure,
	     eap_identity_req, four_way_handshake,
	     rfkill_release;
	struct cfg80211_wowlan_trig_pkt_pattern *patterns;
	int n_patterns;
};

/**
 * struct cfg80211_gtk_rekey_data - rekey data
 * @kek: key encryption key
 * @kck: key confirmation key
 * @replay_ctr: replay counter
 */
struct cfg80211_gtk_rekey_data {
	u8 kek[NL80211_KEK_LEN];
	u8 kck[NL80211_KCK_LEN];
	u8 replay_ctr[NL80211_REPLAY_CTR_LEN];
};

/**
 * struct cfg80211_ops - backend description for wireless configuration
 *
 * This struct is registered by fullmac card drivers and/or wireless stacks
 * in order to handle configuration requests on their interfaces.
 *
 * All callbacks except where otherwise noted should return 0
 * on success or a negative error code.
 *
 * All operations are currently invoked under rtnl for consistency with the
 * wireless extensions but this is subject to reevaluation as soon as this
 * code is used more widely and we have a first user without wext.
 *
 * @suspend: wiphy device needs to be suspended. The variable @wow will
 *	be %NULL or contain the enabled Wake-on-Wireless triggers that are
 *	configured for the device.
 * @resume: wiphy device needs to be resumed
 *
 * @add_virtual_intf: create a new virtual interface with the given name,
 *	must set the struct wireless_dev's iftype. Beware: You must create
 *	the new netdev in the wiphy's network namespace! Returns the netdev,
 *	or an ERR_PTR.
 *
 * @del_virtual_intf: remove the virtual interface determined by ifindex.
 *
 * @change_virtual_intf: change type/configuration of virtual interface,
 *	keep the struct wireless_dev's iftype updated.
 *
 * @add_key: add a key with the given parameters. @mac_addr will be %NULL
 *	when adding a group key.
 *
 * @get_key: get information about the key with the given parameters.
 *	@mac_addr will be %NULL when requesting information for a group
 *	key. All pointers given to the @callback function need not be valid
 *	after it returns. This function should return an error if it is
 *	not possible to retrieve the key, -ENOENT if it doesn't exist.
 *
 * @del_key: remove a key given the @mac_addr (%NULL for a group key)
 *	and @key_index, return -ENOENT if the key doesn't exist.
 *
 * @set_default_key: set the default key on an interface
 *
 * @set_default_mgmt_key: set the default management frame key on an interface
 *
 * @set_rekey_data: give the data necessary for GTK rekeying to the driver
 *
 * @add_beacon: Add a beacon with given parameters, @head, @interval
 *	and @dtim_period will be valid, @tail is optional.
 * @set_beacon: Change the beacon parameters for an access point mode
 *	interface. This should reject the call when no beacon has been
 *	configured.
 * @del_beacon: Remove beacon configuration and stop sending the beacon.
 *
 * @add_station: Add a new station.
 * @del_station: Remove a station; @mac may be NULL to remove all stations.
 * @change_station: Modify a given station. Note that flags changes are not much
 *	validated in cfg80211, in particular the auth/assoc/authorized flags
 *	might come to the driver in invalid combinations -- make sure to check
 *	them, also against the existing state! Also, supported_rates changes are
 *	not checked in station mode -- drivers need to reject (or ignore) them
 *	for anything but TDLS peers.
 * @get_station: get station information for the station identified by @mac
 * @dump_station: dump station callback -- resume dump at index @idx
 *
 * @add_mpath: add a fixed mesh path
 * @del_mpath: delete a given mesh path
 * @change_mpath: change a given mesh path
 * @get_mpath: get a mesh path for the given parameters
 * @dump_mpath: dump mesh path callback -- resume dump at index @idx
 * @join_mesh: join the mesh network with the specified parameters
 * @leave_mesh: leave the current mesh network
 *
 * @get_mesh_config: Get the current mesh configuration
 *
 * @update_mesh_config: Update mesh parameters on a running mesh.
 *	The mask is a bitfield which tells us which parameters to
 *	set, and which to leave alone.
 *
 * @change_bss: Modify parameters for a given BSS.
 *
 * @set_txq_params: Set TX queue parameters
 *
 * @set_channel: Set channel for a given wireless interface. Some devices
 *	may support multi-channel operation (by channel hopping) so cfg80211
 *	doesn't verify much. Note, however, that the passed netdev may be
 *	%NULL as well if the user requested changing the channel for the
 *	device itself, or for a monitor interface.
 * @get_channel: Get the current operating channel, should return %NULL if
 *	there's no single defined operating channel if for example the
 *	device implements channel hopping for multi-channel virtual interfaces.
 *
 * @scan: Request to do a scan. If returning zero, the scan request is given
 *	the driver, and will be valid until passed to cfg80211_scan_done().
 *	For scan results, call cfg80211_inform_bss(); you can call this outside
 *	the scan/scan_done bracket too.
 *
 * @auth: Request to authenticate with the specified peer
 * @assoc: Request to (re)associate with the specified peer
 * @deauth: Request to deauthenticate from the specified peer
 * @disassoc: Request to disassociate from the specified peer
 *
 * @connect: Connect to the ESS with the specified parameters. When connected,
 *	call cfg80211_connect_result() with status code %WLAN_STATUS_SUCCESS.
 *	If the connection fails for some reason, call cfg80211_connect_result()
 *	with the status from the AP.
 * @disconnect: Disconnect from the BSS/ESS.
 *
 * @join_ibss: Join the specified IBSS (or create if necessary). Once done, call
 *	cfg80211_ibss_joined(), also call that function when changing BSSID due
 *	to a merge.
 * @leave_ibss: Leave the IBSS.
 *
 * @set_wiphy_params: Notify that wiphy parameters have changed;
 *	@changed bitfield (see &enum wiphy_params_flags) describes which values
 *	have changed. The actual parameter values are available in
 *	struct wiphy. If returning an error, no value should be changed.
 *
 * @set_tx_power: set the transmit power according to the parameters,
 *	the power passed is in mBm, to get dBm use MBM_TO_DBM().
 * @get_tx_power: store the current TX power into the dbm variable;
 *	return 0 if successful
 *
 * @set_wds_peer: set the WDS peer for a WDS interface
 *
 * @rfkill_poll: polls the hw rfkill line, use cfg80211 reporting
 *	functions to adjust rfkill hw state
 *
 * @dump_survey: get site survey information.
 *
 * @remain_on_channel: Request the driver to remain awake on the specified
 *	channel for the specified duration to complete an off-channel
 *	operation (e.g., public action frame exchange). When the driver is
 *	ready on the requested channel, it must indicate this with an event
 *	notification by calling cfg80211_ready_on_channel().
 * @cancel_remain_on_channel: Cancel an on-going remain-on-channel operation.
 *	This allows the operation to be terminated prior to timeout based on
 *	the duration value.
 * @mgmt_tx: Transmit a management frame.
 * @mgmt_tx_cancel_wait: Cancel the wait time from transmitting a management
 *	frame on another channel
 *
 * @testmode_cmd: run a test mode command
 * @testmode_dump: Implement a test mode dump. The cb->args[2] and up may be
 *	used by the function, but 0 and 1 must not be touched. Additionally,
 *	return error codes other than -ENOBUFS and -ENOENT will terminate the
 *	dump and return to userspace with an error, so be careful. If any data
 *	was passed in from userspace then the data/len arguments will be present
 *	and point to the data contained in %NL80211_ATTR_TESTDATA.
 *
 * @set_bitrate_mask: set the bitrate mask configuration
 *
 * @set_pmksa: Cache a PMKID for a BSSID. This is mostly useful for fullmac
 *	devices running firmwares capable of generating the (re) association
 *	RSN IE. It allows for faster roaming between WPA2 BSSIDs.
 * @del_pmksa: Delete a cached PMKID.
 * @flush_pmksa: Flush all cached PMKIDs.
 * @set_power_mgmt: Configure WLAN power management. A timeout value of -1
 *	allows the driver to adjust the dynamic ps timeout value.
 * @set_cqm_rssi_config: Configure connection quality monitor RSSI threshold.
 * @sched_scan_start: Tell the driver to start a scheduled scan.
 * @sched_scan_stop: Tell the driver to stop an ongoing scheduled
 *	scan.  The driver_initiated flag specifies whether the driver
 *	itself has informed that the scan has stopped.
 *
 * @mgmt_frame_register: Notify driver that a management frame type was
 *	registered. Note that this callback may not sleep, and cannot run
 *	concurrently with itself.
 *
 * @set_antenna: Set antenna configuration (tx_ant, rx_ant) on the device.
 *	Parameters are bitmaps of allowed antennas to use for TX/RX. Drivers may
 *	reject TX/RX mask combinations they cannot support by returning -EINVAL
 *	(also see nl80211.h @NL80211_ATTR_WIPHY_ANTENNA_TX).
 *
 * @get_antenna: Get current antenna configuration from device (tx_ant, rx_ant).
 *
 * @set_ringparam: Set tx and rx ring sizes.
 *
 * @get_ringparam: Get tx and rx ring current and maximum sizes.
 *
 * @tdls_mgmt: Transmit a TDLS management frame.
 * @tdls_oper: Perform a high-level TDLS operation (e.g. TDLS link setup).
 *
 * @probe_client: probe an associated client, must return a cookie that it
 *	later passes to cfg80211_probe_status().
 *
 * @set_noack_map: Set the NoAck Map for the TIDs.
 */
struct cfg80211_ops {
	int	(*suspend)(struct wiphy *wiphy, struct cfg80211_wowlan *wow);
	int	(*resume)(struct wiphy *wiphy);

	struct net_device * (*add_virtual_intf)(struct wiphy *wiphy,
						char *name,
						enum nl80211_iftype type,
						u32 *flags,
						struct vif_params *params);
	int	(*del_virtual_intf)(struct wiphy *wiphy, struct net_device *dev);
	int	(*change_virtual_intf)(struct wiphy *wiphy,
				       struct net_device *dev,
				       enum nl80211_iftype type, u32 *flags,
				       struct vif_params *params);

	int	(*add_key)(struct wiphy *wiphy, struct net_device *netdev,
			   u8 key_index, bool pairwise, const u8 *mac_addr,
			   struct key_params *params);
	int	(*get_key)(struct wiphy *wiphy, struct net_device *netdev,
			   u8 key_index, bool pairwise, const u8 *mac_addr,
			   void *cookie,
			   void (*callback)(void *cookie, struct key_params*));
	int	(*del_key)(struct wiphy *wiphy, struct net_device *netdev,
			   u8 key_index, bool pairwise, const u8 *mac_addr);
	int	(*set_default_key)(struct wiphy *wiphy,
				   struct net_device *netdev,
				   u8 key_index, bool unicast, bool multicast);
	int	(*set_default_mgmt_key)(struct wiphy *wiphy,
					struct net_device *netdev,
					u8 key_index);

	int	(*add_beacon)(struct wiphy *wiphy, struct net_device *dev,
			      struct beacon_parameters *info);
	int	(*set_beacon)(struct wiphy *wiphy, struct net_device *dev,
			      struct beacon_parameters *info);
	int	(*del_beacon)(struct wiphy *wiphy, struct net_device *dev);


	int	(*add_station)(struct wiphy *wiphy, struct net_device *dev,
			       u8 *mac, struct station_parameters *params);
	int	(*del_station)(struct wiphy *wiphy, struct net_device *dev,
			       u8 *mac);
	int	(*change_station)(struct wiphy *wiphy, struct net_device *dev,
				  u8 *mac, struct station_parameters *params);
	int	(*get_station)(struct wiphy *wiphy, struct net_device *dev,
			       u8 *mac, struct station_info *sinfo);
	int	(*dump_station)(struct wiphy *wiphy, struct net_device *dev,
			       int idx, u8 *mac, struct station_info *sinfo);

	int	(*add_mpath)(struct wiphy *wiphy, struct net_device *dev,
			       u8 *dst, u8 *next_hop);
	int	(*del_mpath)(struct wiphy *wiphy, struct net_device *dev,
			       u8 *dst);
	int	(*change_mpath)(struct wiphy *wiphy, struct net_device *dev,
				  u8 *dst, u8 *next_hop);
	int	(*get_mpath)(struct wiphy *wiphy, struct net_device *dev,
			       u8 *dst, u8 *next_hop,
			       struct mpath_info *pinfo);
	int	(*dump_mpath)(struct wiphy *wiphy, struct net_device *dev,
			       int idx, u8 *dst, u8 *next_hop,
			       struct mpath_info *pinfo);
	int	(*get_mesh_config)(struct wiphy *wiphy,
				struct net_device *dev,
				struct mesh_config *conf);
	int	(*update_mesh_config)(struct wiphy *wiphy,
				      struct net_device *dev, u32 mask,
				      const struct mesh_config *nconf);
	int	(*join_mesh)(struct wiphy *wiphy, struct net_device *dev,
			     const struct mesh_config *conf,
			     const struct mesh_setup *setup);
	int	(*leave_mesh)(struct wiphy *wiphy, struct net_device *dev);

	int	(*change_bss)(struct wiphy *wiphy, struct net_device *dev,
			      struct bss_parameters *params);

	int	(*set_txq_params)(struct wiphy *wiphy, struct net_device *dev,
				  struct ieee80211_txq_params *params);

	int	(*set_channel)(struct wiphy *wiphy, struct net_device *dev,
			       struct ieee80211_channel *chan,
			       enum nl80211_channel_type channel_type);

	int	(*scan)(struct wiphy *wiphy, struct net_device *dev,
			struct cfg80211_scan_request *request);

	int	(*auth)(struct wiphy *wiphy, struct net_device *dev,
			struct cfg80211_auth_request *req);
	int	(*assoc)(struct wiphy *wiphy, struct net_device *dev,
			 struct cfg80211_assoc_request *req);
	int	(*deauth)(struct wiphy *wiphy, struct net_device *dev,
			  struct cfg80211_deauth_request *req,
			  void *cookie);
	int	(*disassoc)(struct wiphy *wiphy, struct net_device *dev,
			    struct cfg80211_disassoc_request *req,
			    void *cookie);

	int	(*connect)(struct wiphy *wiphy, struct net_device *dev,
			   struct cfg80211_connect_params *sme);
	int	(*disconnect)(struct wiphy *wiphy, struct net_device *dev,
			      u16 reason_code);

	int	(*join_ibss)(struct wiphy *wiphy, struct net_device *dev,
			     struct cfg80211_ibss_params *params);
	int	(*leave_ibss)(struct wiphy *wiphy, struct net_device *dev);

	int	(*set_wiphy_params)(struct wiphy *wiphy, u32 changed);

	int	(*set_tx_power)(struct wiphy *wiphy,
				enum nl80211_tx_power_setting type, int mbm);
	int	(*get_tx_power)(struct wiphy *wiphy, int *dbm);

	int	(*set_wds_peer)(struct wiphy *wiphy, struct net_device *dev,
				const u8 *addr);

	void	(*rfkill_poll)(struct wiphy *wiphy);

#ifdef CONFIG_NL80211_TESTMODE
	int	(*testmode_cmd)(struct wiphy *wiphy, void *data, int len);
	int	(*testmode_dump)(struct wiphy *wiphy, struct sk_buff *skb,
				 struct netlink_callback *cb,
				 void *data, int len);
#endif

	int	(*set_bitrate_mask)(struct wiphy *wiphy,
				    struct net_device *dev,
				    const u8 *peer,
				    const struct cfg80211_bitrate_mask *mask);

	int	(*dump_survey)(struct wiphy *wiphy, struct net_device *netdev,
			int idx, struct survey_info *info);

	int	(*set_pmksa)(struct wiphy *wiphy, struct net_device *netdev,
			     struct cfg80211_pmksa *pmksa);
	int	(*del_pmksa)(struct wiphy *wiphy, struct net_device *netdev,
			     struct cfg80211_pmksa *pmksa);
	int	(*flush_pmksa)(struct wiphy *wiphy, struct net_device *netdev);

	int	(*remain_on_channel)(struct wiphy *wiphy,
				     struct net_device *dev,
				     struct ieee80211_channel *chan,
				     enum nl80211_channel_type channel_type,
				     unsigned int duration,
				     u64 *cookie);
	int	(*cancel_remain_on_channel)(struct wiphy *wiphy,
					    struct net_device *dev,
					    u64 cookie);

	int	(*mgmt_tx)(struct wiphy *wiphy, struct net_device *dev,
			  struct ieee80211_channel *chan, bool offchan,
			  enum nl80211_channel_type channel_type,
			  bool channel_type_valid, unsigned int wait,
			  const u8 *buf, size_t len, bool no_cck,
			  bool dont_wait_for_ack, u64 *cookie);
	int	(*mgmt_tx_cancel_wait)(struct wiphy *wiphy,
				       struct net_device *dev,
				       u64 cookie);

	int	(*set_power_mgmt)(struct wiphy *wiphy, struct net_device *dev,
				  bool enabled, int timeout);

	int	(*set_cqm_rssi_config)(struct wiphy *wiphy,
				       struct net_device *dev,
				       s32 rssi_thold, u32 rssi_hyst);

	void	(*mgmt_frame_register)(struct wiphy *wiphy,
				       struct net_device *dev,
				       u16 frame_type, bool reg);

	int	(*set_antenna)(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant);
	int	(*get_antenna)(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant);

	int	(*set_ringparam)(struct wiphy *wiphy, u32 tx, u32 rx);
	void	(*get_ringparam)(struct wiphy *wiphy,
				 u32 *tx, u32 *tx_max, u32 *rx, u32 *rx_max);

	int	(*sched_scan_start)(struct wiphy *wiphy,
				struct net_device *dev,
				struct cfg80211_sched_scan_request *request);
	int	(*sched_scan_stop)(struct wiphy *wiphy, struct net_device *dev);

	int	(*set_rekey_data)(struct wiphy *wiphy, struct net_device *dev,
				  struct cfg80211_gtk_rekey_data *data);

	int	(*tdls_mgmt)(struct wiphy *wiphy, struct net_device *dev,
			     u8 *peer, u8 action_code,  u8 dialog_token,
			     u16 status_code, const u8 *buf, size_t len);
	int	(*tdls_oper)(struct wiphy *wiphy, struct net_device *dev,
			     u8 *peer, enum nl80211_tdls_operation oper);

	int	(*probe_client)(struct wiphy *wiphy, struct net_device *dev,
				const u8 *peer, u64 *cookie);

	int	(*set_noack_map)(struct wiphy *wiphy,
				  struct net_device *dev,
				  u16 noack_map);

	struct ieee80211_channel *(*get_channel)(struct wiphy *wiphy);
};

/*
 * wireless hardware and networking interfaces structures
 * and registration/helper functions
 */

/**
 * enum wiphy_flags - wiphy capability flags
 *
 * @WIPHY_FLAG_CUSTOM_REGULATORY:  tells us the driver for this device
 * 	has its own custom regulatory domain and cannot identify the
 * 	ISO / IEC 3166 alpha2 it belongs to. When this is enabled
 * 	we will disregard the first regulatory hint (when the
 * 	initiator is %REGDOM_SET_BY_CORE).
 * @WIPHY_FLAG_STRICT_REGULATORY: tells us the driver for this device will
 *	ignore regulatory domain settings until it gets its own regulatory
 *	domain via its regulatory_hint() unless the regulatory hint is
 *	from a country IE. After its gets its own regulatory domain it will
 *	only allow further regulatory domain settings to further enhance
 *	compliance. For example if channel 13 and 14 are disabled by this
 *	regulatory domain no user regulatory domain can enable these channels
 *	at a later time. This can be used for devices which do not have
 *	calibration information guaranteed for frequencies or settings
 *	outside of its regulatory domain. If used in combination with
 *	WIPHY_FLAG_CUSTOM_REGULATORY the inspected country IE power settings
 *	will be followed.
 * @WIPHY_FLAG_DISABLE_BEACON_HINTS: enable this if your driver needs to ensure
 *	that passive scan flags and beaconing flags may not be lifted by
 *	cfg80211 due to regulatory beacon hints. For more information on beacon
 *	hints read the documenation for regulatory_hint_found_beacon()
 * @WIPHY_FLAG_NETNS_OK: if not set, do not allow changing the netns of this
 *	wiphy at all
 * @WIPHY_FLAG_ENFORCE_COMBINATIONS: Set this flag to enforce interface
 *	combinations for this device. This flag is used for backward
 *	compatibility only until all drivers advertise combinations and
 *	they will always be enforced.
 * @WIPHY_FLAG_PS_ON_BY_DEFAULT: if set to true, powersave will be enabled
 *	by default -- this flag will be set depending on the kernel's default
 *	on wiphy_new(), but can be changed by the driver if it has a good
 *	reason to override the default
 * @WIPHY_FLAG_4ADDR_AP: supports 4addr mode even on AP (with a single station
 *	on a VLAN interface)
 * @WIPHY_FLAG_4ADDR_STATION: supports 4addr mode even as a station
 * @WIPHY_FLAG_CONTROL_PORT_PROTOCOL: This device supports setting the
 *	control port protocol ethertype. The device also honours the
 *	control_port_no_encrypt flag.
 * @WIPHY_FLAG_IBSS_RSN: The device supports IBSS RSN.
 * @WIPHY_FLAG_MESH_AUTH: The device supports mesh authentication by routing
 *	auth frames to userspace. See @NL80211_MESH_SETUP_USERSPACE_AUTH.
 * @WIPHY_FLAG_SUPPORTS_SCHED_SCAN: The device supports scheduled scans.
 * @WIPHY_FLAG_SUPPORTS_FW_ROAM: The device supports roaming feature in the
 *	firmware.
 * @WIPHY_FLAG_AP_UAPSD: The device supports uapsd on AP.
 * @WIPHY_FLAG_SUPPORTS_TDLS: The device supports TDLS (802.11z) operation.
 * @WIPHY_FLAG_TDLS_EXTERNAL_SETUP: The device does not handle TDLS (802.11z)
 *	link setup/discovery operations internally. Setup, discovery and
 *	teardown packets should be sent through the @NL80211_CMD_TDLS_MGMT
 *	command. When this flag is not set, @NL80211_CMD_TDLS_OPER should be
 *	used for asking the driver/firmware to perform a TDLS operation.
 * @WIPHY_FLAG_HAVE_AP_SME: device integrates AP SME
 * @WIPHY_FLAG_REPORTS_OBSS: the device will report beacons from other BSSes
 *	when there are virtual interfaces in AP mode by calling
 *	cfg80211_report_obss_beacon().
 * @WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD: When operating as an AP, the device
 *	responds to probe-requests in hardware.
 * @WIPHY_FLAG_OFFCHAN_TX: Device supports direct off-channel TX.
 * @WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL: Device supports remain-on-channel call.
 */
enum wiphy_flags {
	WIPHY_FLAG_CUSTOM_REGULATORY		= BIT(0),
	WIPHY_FLAG_STRICT_REGULATORY		= BIT(1),
	WIPHY_FLAG_DISABLE_BEACON_HINTS		= BIT(2),
	WIPHY_FLAG_NETNS_OK			= BIT(3),
	WIPHY_FLAG_PS_ON_BY_DEFAULT		= BIT(4),
	WIPHY_FLAG_4ADDR_AP			= BIT(5),
	WIPHY_FLAG_4ADDR_STATION		= BIT(6),
	WIPHY_FLAG_CONTROL_PORT_PROTOCOL	= BIT(7),
	WIPHY_FLAG_IBSS_RSN			= BIT(8),
	WIPHY_FLAG_MESH_AUTH			= BIT(10),
	WIPHY_FLAG_SUPPORTS_SCHED_SCAN		= BIT(11),
	WIPHY_FLAG_ENFORCE_COMBINATIONS		= BIT(12),
	WIPHY_FLAG_SUPPORTS_FW_ROAM		= BIT(13),
	WIPHY_FLAG_AP_UAPSD			= BIT(14),
	WIPHY_FLAG_SUPPORTS_TDLS		= BIT(15),
	WIPHY_FLAG_TDLS_EXTERNAL_SETUP		= BIT(16),
	WIPHY_FLAG_HAVE_AP_SME			= BIT(17),
	WIPHY_FLAG_REPORTS_OBSS			= BIT(18),
	WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD	= BIT(19),
	WIPHY_FLAG_OFFCHAN_TX			= BIT(20),
	WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL	= BIT(21),
};

/**
 * struct ieee80211_iface_limit - limit on certain interface types
 * @max: maximum number of interfaces of these types
 * @types: interface types (bits)
 */
struct ieee80211_iface_limit {
	u16 max;
	u16 types;
};

/**
 * struct ieee80211_iface_combination - possible interface combination
 * @limits: limits for the given interface types
 * @n_limits: number of limitations
 * @num_different_channels: can use up to this many different channels
 * @max_interfaces: maximum number of interfaces in total allowed in this
 *	group
 * @beacon_int_infra_match: In this combination, the beacon intervals
 *	between infrastructure and AP types must match. This is required
 *	only in special cases.
 *
 * These examples can be expressed as follows:
 *
 * Allow #STA <= 1, #AP <= 1, matching BI, channels = 1, 2 total:
 *
 *  struct ieee80211_iface_limit limits1[] = {
 *	{ .max = 1, .types = BIT(NL80211_IFTYPE_STATION), },
 *	{ .max = 1, .types = BIT(NL80211_IFTYPE_AP}, },
 *  };
 *  struct ieee80211_iface_combination combination1 = {
 *	.limits = limits1,
 *	.n_limits = ARRAY_SIZE(limits1),
 *	.max_interfaces = 2,
 *	.beacon_int_infra_match = true,
 *  };
 *
 *
 * Allow #{AP, P2P-GO} <= 8, channels = 1, 8 total:
 *
 *  struct ieee80211_iface_limit limits2[] = {
 *	{ .max = 8, .types = BIT(NL80211_IFTYPE_AP) |
 *			     BIT(NL80211_IFTYPE_P2P_GO), },
 *  };
 *  struct ieee80211_iface_combination combination2 = {
 *	.limits = limits2,
 *	.n_limits = ARRAY_SIZE(limits2),
 *	.max_interfaces = 8,
 *	.num_different_channels = 1,
 *  };
 *
 *
 * Allow #STA <= 1, #{P2P-client,P2P-GO} <= 3 on two channels, 4 total.
 * This allows for an infrastructure connection and three P2P connections.
 *
 *  struct ieee80211_iface_limit limits3[] = {
 *	{ .max = 1, .types = BIT(NL80211_IFTYPE_STATION), },
 *	{ .max = 3, .types = BIT(NL80211_IFTYPE_P2P_GO) |
 *			     BIT(NL80211_IFTYPE_P2P_CLIENT), },
 *  };
 *  struct ieee80211_iface_combination combination3 = {
 *	.limits = limits3,
 *	.n_limits = ARRAY_SIZE(limits3),
 *	.max_interfaces = 4,
 *	.num_different_channels = 2,
 *  };
 */
struct ieee80211_iface_combination {
	const struct ieee80211_iface_limit *limits;
	u32 num_different_channels;
	u16 max_interfaces;
	u8 n_limits;
	bool beacon_int_infra_match;
};

struct mac_address {
	u8 addr[ETH_ALEN];
};

struct ieee80211_txrx_stypes {
	u16 tx, rx;
};

/**
 * enum wiphy_wowlan_support_flags - WoWLAN support flags
 * @WIPHY_WOWLAN_ANY: supports wakeup for the special "any"
 *	trigger that keeps the device operating as-is and
 *	wakes up the host on any activity, for example a
 *	received packet that passed filtering; note that the
 *	packet should be preserved in that case
 * @WIPHY_WOWLAN_MAGIC_PKT: supports wakeup on magic packet
 *	(see nl80211.h)
 * @WIPHY_WOWLAN_DISCONNECT: supports wakeup on disconnect
 * @WIPHY_WOWLAN_SUPPORTS_GTK_REKEY: supports GTK rekeying while asleep
 * @WIPHY_WOWLAN_GTK_REKEY_FAILURE: supports wakeup on GTK rekey failure
 * @WIPHY_WOWLAN_EAP_IDENTITY_REQ: supports wakeup on EAP identity request
 * @WIPHY_WOWLAN_4WAY_HANDSHAKE: supports wakeup on 4-way handshake failure
 * @WIPHY_WOWLAN_RFKILL_RELEASE: supports wakeup on RF-kill release
 */
enum wiphy_wowlan_support_flags {
	WIPHY_WOWLAN_ANY		= BIT(0),
	WIPHY_WOWLAN_MAGIC_PKT		= BIT(1),
	WIPHY_WOWLAN_DISCONNECT		= BIT(2),
	WIPHY_WOWLAN_SUPPORTS_GTK_REKEY	= BIT(3),
	WIPHY_WOWLAN_GTK_REKEY_FAILURE	= BIT(4),
	WIPHY_WOWLAN_EAP_IDENTITY_REQ	= BIT(5),
	WIPHY_WOWLAN_4WAY_HANDSHAKE	= BIT(6),
	WIPHY_WOWLAN_RFKILL_RELEASE	= BIT(7),
};

/**
 * struct wiphy_wowlan_support - WoWLAN support data
 * @flags: see &enum wiphy_wowlan_support_flags
 * @n_patterns: number of supported wakeup patterns
 *	(see nl80211.h for the pattern definition)
 * @pattern_max_len: maximum length of each pattern
 * @pattern_min_len: minimum length of each pattern
 */
struct wiphy_wowlan_support {
	u32 flags;
	int n_patterns;
	int pattern_max_len;
	int pattern_min_len;
};

/**
 * struct wiphy - wireless hardware description
 * @reg_notifier: the driver's regulatory notification callback,
 *	note that if your driver uses wiphy_apply_custom_regulatory()
 *	the reg_notifier's request can be passed as NULL
 * @regd: the driver's regulatory domain, if one was requested via
 * 	the regulatory_hint() API. This can be used by the driver
 *	on the reg_notifier() if it chooses to ignore future
 *	regulatory domain changes caused by other drivers.
 * @signal_type: signal type reported in &struct cfg80211_bss.
 * @cipher_suites: supported cipher suites
 * @n_cipher_suites: number of supported cipher suites
 * @retry_short: Retry limit for short frames (dot11ShortRetryLimit)
 * @retry_long: Retry limit for long frames (dot11LongRetryLimit)
 * @frag_threshold: Fragmentation threshold (dot11FragmentationThreshold);
 *	-1 = fragmentation disabled, only odd values >= 256 used
 * @rts_threshold: RTS threshold (dot11RTSThreshold); -1 = RTS/CTS disabled
 * @_net: the network namespace this wiphy currently lives in
 * @perm_addr: permanent MAC address of this device
 * @addr_mask: If the device supports multiple MAC addresses by masking,
 *	set this to a mask with variable bits set to 1, e.g. if the last
 *	four bits are variable then set it to 00:...:00:0f. The actual
 *	variable bits shall be determined by the interfaces added, with
 *	interfaces not matching the mask being rejected to be brought up.
 * @n_addresses: number of addresses in @addresses.
 * @addresses: If the device has more than one address, set this pointer
 *	to a list of addresses (6 bytes each). The first one will be used
 *	by default for perm_addr. In this case, the mask should be set to
 *	all-zeroes. In this case it is assumed that the device can handle
 *	the same number of arbitrary MAC addresses.
 * @registered: protects ->resume and ->suspend sysfs callbacks against
 *	unregister hardware
 * @debugfsdir: debugfs directory used for this wiphy, will be renamed
 *	automatically on wiphy renames
 * @dev: (virtual) struct device for this wiphy
 * @registered: helps synchronize suspend/resume with wiphy unregister
 * @wext: wireless extension handlers
 * @priv: driver private data (sized according to wiphy_new() parameter)
 * @interface_modes: bitmask of interfaces types valid for this wiphy,
 *	must be set by driver
 * @iface_combinations: Valid interface combinations array, should not
 *	list single interface types.
 * @n_iface_combinations: number of entries in @iface_combinations array.
 * @software_iftypes: bitmask of software interface types, these are not
 *	subject to any restrictions since they are purely managed in SW.
 * @flags: wiphy flags, see &enum wiphy_flags
 * @features: features advertised to nl80211, see &enum nl80211_feature_flags.
 * @bss_priv_size: each BSS struct has private data allocated with it,
 *	this variable determines its size
 * @max_scan_ssids: maximum number of SSIDs the device can scan for in
 *	any given scan
 * @max_sched_scan_ssids: maximum number of SSIDs the device can scan
 *	for in any given scheduled scan
 * @max_match_sets: maximum number of match sets the device can handle
 *	when performing a scheduled scan, 0 if filtering is not
 *	supported.
 * @max_scan_ie_len: maximum length of user-controlled IEs device can
 *	add to probe request frames transmitted during a scan, must not
 *	include fixed IEs like supported rates
 * @max_sched_scan_ie_len: same as max_scan_ie_len, but for scheduled
 *	scans
 * @coverage_class: current coverage class
 * @fw_version: firmware version for ethtool reporting
 * @hw_version: hardware version for ethtool reporting
 * @max_num_pmkids: maximum number of PMKIDs supported by device
 * @privid: a pointer that drivers can use to identify if an arbitrary
 *	wiphy is theirs, e.g. in global notifiers
 * @bands: information about bands/channels supported by this device
 *
 * @mgmt_stypes: bitmasks of frame subtypes that can be subscribed to or
 *	transmitted through nl80211, points to an array indexed by interface
 *	type
 *
 * @available_antennas_tx: bitmap of antennas which are available to be
 *	configured as TX antennas. Antenna configuration commands will be
 *	rejected unless this or @available_antennas_rx is set.
 *
 * @available_antennas_rx: bitmap of antennas which are available to be
 *	configured as RX antennas. Antenna configuration commands will be
 *	rejected unless this or @available_antennas_tx is set.
 *
 * @probe_resp_offload:
 *	 Bitmap of supported protocols for probe response offloading.
 *	 See &enum nl80211_probe_resp_offload_support_attr. Only valid
 *	 when the wiphy flag @WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD is set.
 *
 * @max_remain_on_channel_duration: Maximum time a remain-on-channel operation
 *	may request, if implemented.
 *
 * @wowlan: WoWLAN support information
 *
 * @ap_sme_capa: AP SME capabilities, flags from &enum nl80211_ap_sme_features.
 * @ht_capa_mod_mask:  Specify what ht_cap values can be over-ridden.
 *	If null, then none can be over-ridden.
 */
struct wiphy {
	/* assign these fields before you register the wiphy */

	/* permanent MAC address(es) */
	u8 perm_addr[ETH_ALEN];
	u8 addr_mask[ETH_ALEN];

	struct mac_address *addresses;

	const struct ieee80211_txrx_stypes *mgmt_stypes;

	const struct ieee80211_iface_combination *iface_combinations;
	int n_iface_combinations;
	u16 software_iftypes;

	u16 n_addresses;

	/* Supported interface modes, OR together BIT(NL80211_IFTYPE_...) */
	u16 interface_modes;

	u32 flags, features;

	u32 ap_sme_capa;

	enum cfg80211_signal_type signal_type;

	int bss_priv_size;
	u8 max_scan_ssids;
	u8 max_sched_scan_ssids;
	u8 max_match_sets;
	u16 max_scan_ie_len;
	u16 max_sched_scan_ie_len;

	int n_cipher_suites;
	const u32 *cipher_suites;

	u8 retry_short;
	u8 retry_long;
	u32 frag_threshold;
	u32 rts_threshold;
	u8 coverage_class;

	char fw_version[ETHTOOL_BUSINFO_LEN];
	u32 hw_version;

	struct wiphy_wowlan_support wowlan;

	u16 max_remain_on_channel_duration;

	u8 max_num_pmkids;

	u32 available_antennas_tx;
	u32 available_antennas_rx;

	/*
	 * Bitmap of supported protocols for probe response offloading
	 * see &enum nl80211_probe_resp_offload_support_attr. Only valid
	 * when the wiphy flag @WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD is set.
	 */
	u32 probe_resp_offload;

	/* If multiple wiphys are registered and you're handed e.g.
	 * a regular netdev with assigned ieee80211_ptr, you won't
	 * know whether it points to a wiphy your driver has registered
	 * or not. Assign this to something global to your driver to
	 * help determine whether you own this wiphy or not. */
	const void *privid;

	struct ieee80211_supported_band *bands[IEEE80211_NUM_BANDS];

	/* Lets us get back the wiphy on the callback */
	int (*reg_notifier)(struct wiphy *wiphy,
			    struct regulatory_request *request);

	/* fields below are read-only, assigned by cfg80211 */

	const struct ieee80211_regdomain *regd;

	/* the item in /sys/class/ieee80211/ points to this,
	 * you need use set_wiphy_dev() (see below) */
	struct device dev;

	/* protects ->resume, ->suspend sysfs callbacks against unregister hw */
	bool registered;

	/* dir in debugfs: ieee80211/<wiphyname> */
	struct dentry *debugfsdir;

	const struct ieee80211_ht_cap *ht_capa_mod_mask;

#ifdef CONFIG_NET_NS
	/* the network namespace this phy lives in currently */
	struct net *_net;
#endif

#ifdef CONFIG_CFG80211_WEXT
	const struct iw_handler_def *wext;
#endif

	char priv[0] __attribute__((__aligned__(NETDEV_ALIGN)));
};

static inline struct net *wiphy_net(struct wiphy *wiphy)
{
	return read_pnet(&wiphy->_net);
}

static inline void wiphy_net_set(struct wiphy *wiphy, struct net *net)
{
	write_pnet(&wiphy->_net, net);
}

/**
 * wiphy_priv - return priv from wiphy
 *
 * @wiphy: the wiphy whose priv pointer to return
 */
static inline void *wiphy_priv(struct wiphy *wiphy)
{
	BUG_ON(!wiphy);
	return &wiphy->priv;
}

/**
 * priv_to_wiphy - return the wiphy containing the priv
 *
 * @priv: a pointer previously returned by wiphy_priv
 */
static inline struct wiphy *priv_to_wiphy(void *priv)
{
	BUG_ON(!priv);
	return container_of(priv, struct wiphy, priv);
}

/**
 * set_wiphy_dev - set device pointer for wiphy
 *
 * @wiphy: The wiphy whose device to bind
 * @dev: The device to parent it to
 */
static inline void set_wiphy_dev(struct wiphy *wiphy, struct device *dev)
{
	wiphy->dev.parent = dev;
}

/**
 * wiphy_dev - get wiphy dev pointer
 *
 * @wiphy: The wiphy whose device struct to look up
 */
static inline struct device *wiphy_dev(struct wiphy *wiphy)
{
	return wiphy->dev.parent;
}

/**
 * wiphy_name - get wiphy name
 *
 * @wiphy: The wiphy whose name to return
 */
static inline const char *wiphy_name(const struct wiphy *wiphy)
{
	return dev_name(&wiphy->dev);
}

/**
 * wiphy_new - create a new wiphy for use with cfg80211
 *
 * @ops: The configuration operations for this device
 * @sizeof_priv: The size of the private area to allocate
 *
 * Create a new wiphy and associate the given operations with it.
 * @sizeof_priv bytes are allocated for private use.
 *
 * The returned pointer must be assigned to each netdev's
 * ieee80211_ptr for proper operation.
 */
struct wiphy *wiphy_new(const struct cfg80211_ops *ops, int sizeof_priv);

/**
 * wiphy_register - register a wiphy with cfg80211
 *
 * @wiphy: The wiphy to register.
 *
 * Returns a non-negative wiphy index or a negative error code.
 */
extern int wiphy_register(struct wiphy *wiphy);

/**
 * wiphy_unregister - deregister a wiphy from cfg80211
 *
 * @wiphy: The wiphy to unregister.
 *
 * After this call, no more requests can be made with this priv
 * pointer, but the call may sleep to wait for an outstanding
 * request that is being handled.
 */
extern void wiphy_unregister(struct wiphy *wiphy);

/**
 * wiphy_free - free wiphy
 *
 * @wiphy: The wiphy to free
 */
extern void wiphy_free(struct wiphy *wiphy);

/* internal structs */
struct cfg80211_conn;
struct cfg80211_internal_bss;
struct cfg80211_cached_keys;

#define MAX_AUTH_BSSES		4

/**
 * struct wireless_dev - wireless per-netdev state
 *
 * This structure must be allocated by the driver/stack
 * that uses the ieee80211_ptr field in struct net_device
 * (this is intentional so it can be allocated along with
 * the netdev.)
 *
 * @wiphy: pointer to hardware description
 * @iftype: interface type
 * @list: (private) Used to collect the interfaces
 * @netdev: (private) Used to reference back to the netdev
 * @current_bss: (private) Used by the internal configuration code
 * @channel: (private) Used by the internal configuration code to track
 *	user-set AP, monitor and WDS channels for wireless extensions
 * @bssid: (private) Used by the internal configuration code
 * @ssid: (private) Used by the internal configuration code
 * @ssid_len: (private) Used by the internal configuration code
 * @mesh_id_len: (private) Used by the internal configuration code
 * @mesh_id_up_len: (private) Used by the internal configuration code
 * @wext: (private) Used by the internal wireless extensions compat code
 * @use_4addr: indicates 4addr mode is used on this interface, must be
 *	set by driver (if supported) on add_interface BEFORE registering the
 *	netdev and may otherwise be used by driver read-only, will be update
 *	by cfg80211 on change_interface
 * @mgmt_registrations: list of registrations for management frames
 * @mgmt_registrations_lock: lock for the list
 * @mtx: mutex used to lock data in this struct
 * @cleanup_work: work struct used for cleanup that can't be done directly
 * @beacon_interval: beacon interval used on this device for transmitting
 *	beacons, 0 when not valid
 */
struct wireless_dev {
	struct wiphy *wiphy;
	enum nl80211_iftype iftype;

	/* the remainder of this struct should be private to cfg80211 */
	struct list_head list;
	struct net_device *netdev;

	struct list_head mgmt_registrations;
	spinlock_t mgmt_registrations_lock;

	struct mutex mtx;

	struct work_struct cleanup_work;

	bool use_4addr;

	/* currently used for IBSS and SME - might be rearranged later */
	u8 ssid[IEEE80211_MAX_SSID_LEN];
	u8 ssid_len, mesh_id_len, mesh_id_up_len;
	enum {
		CFG80211_SME_IDLE,
		CFG80211_SME_CONNECTING,
		CFG80211_SME_CONNECTED,
	} sme_state;
	struct cfg80211_conn *conn;
	struct cfg80211_cached_keys *connect_keys;

	struct list_head event_list;
	spinlock_t event_lock;

	struct cfg80211_internal_bss *authtry_bsses[MAX_AUTH_BSSES];
	struct cfg80211_internal_bss *auth_bsses[MAX_AUTH_BSSES];
	struct cfg80211_internal_bss *current_bss; /* associated / joined */
	struct ieee80211_channel *channel;

	bool ps;
	int ps_timeout;

	int beacon_interval;

	u32 ap_unexpected_nlpid;

#ifdef CONFIG_CFG80211_WEXT
	/* wext data */
	struct {
		struct cfg80211_ibss_params ibss;
		struct cfg80211_connect_params connect;
		struct cfg80211_cached_keys *keys;
		u8 *ie;
		size_t ie_len;
		u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN];
		u8 ssid[IEEE80211_MAX_SSID_LEN];
		s8 default_key, default_mgmt_key;
		bool prev_bssid_valid;
	} wext;
#endif
};

/**
 * wdev_priv - return wiphy priv from wireless_dev
 *
 * @wdev: The wireless device whose wiphy's priv pointer to return
 */
static inline void *wdev_priv(struct wireless_dev *wdev)
{
	BUG_ON(!wdev);
	return wiphy_priv(wdev->wiphy);
}

/**
 * DOC: Utility functions
 *
 * cfg80211 offers a number of utility functions that can be useful.
 */

/**
 * ieee80211_channel_to_frequency - convert channel number to frequency
 * @chan: channel number
 * @band: band, necessary due to channel number overlap
 */
extern int ieee80211_channel_to_frequency(int chan, enum ieee80211_band band);

/**
 * ieee80211_frequency_to_channel - convert frequency to channel number
 * @freq: center frequency
 */
extern int ieee80211_frequency_to_channel(int freq);

/*
 * Name indirection necessary because the ieee80211 code also has
 * a function named "ieee80211_get_channel", so if you include
 * cfg80211's header file you get cfg80211's version, if you try
 * to include both header files you'll (rightfully!) get a symbol
 * clash.
 */
extern struct ieee80211_channel *__ieee80211_get_channel(struct wiphy *wiphy,
							 int freq);
/**
 * ieee80211_get_channel - get channel struct from wiphy for specified frequency
 * @wiphy: the struct wiphy to get the channel for
 * @freq: the center frequency of the channel
 */
static inline struct ieee80211_channel *
ieee80211_get_channel(struct wiphy *wiphy, int freq)
{
	return __ieee80211_get_channel(wiphy, freq);
}

/**
 * ieee80211_get_response_rate - get basic rate for a given rate
 *
 * @sband: the band to look for rates in
 * @basic_rates: bitmap of basic rates
 * @bitrate: the bitrate for which to find the basic rate
 *
 * This function returns the basic rate corresponding to a given
 * bitrate, that is the next lower bitrate contained in the basic
 * rate map, which is, for this function, given as a bitmap of
 * indices of rates in the band's bitrate table.
 */
struct ieee80211_rate *
ieee80211_get_response_rate(struct ieee80211_supported_band *sband,
			    u32 basic_rates, int bitrate);

/*
 * Radiotap parsing functions -- for controlled injection support
 *
 * Implemented in net/wireless/radiotap.c
 * Documentation in Documentation/networking/radiotap-headers.txt
 */

struct radiotap_align_size {
	uint8_t align:4, size:4;
};

struct ieee80211_radiotap_namespace {
	const struct radiotap_align_size *align_size;
	int n_bits;
	uint32_t oui;
	uint8_t subns;
};

struct ieee80211_radiotap_vendor_namespaces {
	const struct ieee80211_radiotap_namespace *ns;
	int n_ns;
};

/**
 * struct ieee80211_radiotap_iterator - tracks walk thru present radiotap args
 * @this_arg_index: index of current arg, valid after each successful call
 *	to ieee80211_radiotap_iterator_next()
 * @this_arg: pointer to current radiotap arg; it is valid after each
 *	call to ieee80211_radiotap_iterator_next() but also after
 *	ieee80211_radiotap_iterator_init() where it will point to
 *	the beginning of the actual data portion
 * @this_arg_size: length of the current arg, for convenience
 * @current_namespace: pointer to the current namespace definition
 *	(or internally %NULL if the current namespace is unknown)
 * @is_radiotap_ns: indicates whether the current namespace is the default
 *	radiotap namespace or not
 *
 * @_rtheader: pointer to the radiotap header we are walking through
 * @_max_length: length of radiotap header in cpu byte ordering
 * @_arg_index: next argument index
 * @_arg: next argument pointer
 * @_next_bitmap: internal pointer to next present u32
 * @_bitmap_shifter: internal shifter for curr u32 bitmap, b0 set == arg present
 * @_vns: vendor namespace definitions
 * @_next_ns_data: beginning of the next namespace's data
 * @_reset_on_ext: internal; reset the arg index to 0 when going to the
 *	next bitmap word
 *
 * Describes the radiotap parser state. Fields prefixed with an underscore
 * must not be used by users of the parser, only by the parser internally.
 */

struct ieee80211_radiotap_iterator {
	struct ieee80211_radiotap_header *_rtheader;
	const struct ieee80211_radiotap_vendor_namespaces *_vns;
	const struct ieee80211_radiotap_namespace *current_namespace;

	unsigned char *_arg, *_next_ns_data;
	__le32 *_next_bitmap;

	unsigned char *this_arg;
	int this_arg_index;
	int this_arg_size;

	int is_radiotap_ns;

	int _max_length;
	int _arg_index;
	uint32_t _bitmap_shifter;
	int _reset_on_ext;
};

extern int ieee80211_radiotap_iterator_init(
	struct ieee80211_radiotap_iterator *iterator,
	struct ieee80211_radiotap_header *radiotap_header,
	int max_length, const struct ieee80211_radiotap_vendor_namespaces *vns);

extern int ieee80211_radiotap_iterator_next(
	struct ieee80211_radiotap_iterator *iterator);


extern const unsigned char rfc1042_header[6];
extern const unsigned char bridge_tunnel_header[6];

/**
 * ieee80211_get_hdrlen_from_skb - get header length from data
 *
 * Given an skb with a raw 802.11 header at the data pointer this function
 * returns the 802.11 header length in bytes (not including encryption
 * headers). If the data in the sk_buff is too short to contain a valid 802.11
 * header the function returns 0.
 *
 * @skb: the frame
 */
unsigned int ieee80211_get_hdrlen_from_skb(const struct sk_buff *skb);

/**
 * ieee80211_hdrlen - get header length in bytes from frame control
 * @fc: frame control field in little-endian format
 */
unsigned int __attribute_const__ ieee80211_hdrlen(__le16 fc);

/**
 * DOC: Data path helpers
 *
 * In addition to generic utilities, cfg80211 also offers
 * functions that help implement the data path for devices
 * that do not do the 802.11/802.3 conversion on the device.
 */

/**
 * ieee80211_data_to_8023 - convert an 802.11 data frame to 802.3
 * @skb: the 802.11 data frame
 * @addr: the device MAC address
 * @iftype: the virtual interface type
 */
int ieee80211_data_to_8023(struct sk_buff *skb, const u8 *addr,
			   enum nl80211_iftype iftype);

/**
 * ieee80211_data_from_8023 - convert an 802.3 frame to 802.11
 * @skb: the 802.3 frame
 * @addr: the device MAC address
 * @iftype: the virtual interface type
 * @bssid: the network bssid (used only for iftype STATION and ADHOC)
 * @qos: build 802.11 QoS data frame
 */
int ieee80211_data_from_8023(struct sk_buff *skb, const u8 *addr,
			     enum nl80211_iftype iftype, u8 *bssid, bool qos);

/**
 * ieee80211_amsdu_to_8023s - decode an IEEE 802.11n A-MSDU frame
 *
 * Decode an IEEE 802.11n A-MSDU frame and convert it to a list of
 * 802.3 frames. The @list will be empty if the decode fails. The
 * @skb is consumed after the function returns.
 *
 * @skb: The input IEEE 802.11n A-MSDU frame.
 * @list: The output list of 802.3 frames. It must be allocated and
 *	initialized by by the caller.
 * @addr: The device MAC address.
 * @iftype: The device interface type.
 * @extra_headroom: The hardware extra headroom for SKBs in the @list.
 * @has_80211_header: Set it true if SKB is with IEEE 802.11 header.
 */
void ieee80211_amsdu_to_8023s(struct sk_buff *skb, struct sk_buff_head *list,
			      const u8 *addr, enum nl80211_iftype iftype,
			      const unsigned int extra_headroom,
			      bool has_80211_header);

/**
 * cfg80211_classify8021d - determine the 802.1p/1d tag for a data frame
 * @skb: the data frame
 */
unsigned int cfg80211_classify8021d(struct sk_buff *skb);

/**
 * cfg80211_find_ie - find information element in data
 *
 * @eid: element ID
 * @ies: data consisting of IEs
 * @len: length of data
 *
 * This function will return %NULL if the element ID could
 * not be found or if the element is invalid (claims to be
 * longer than the given data), or a pointer to the first byte
 * of the requested element, that is the byte containing the
 * element ID. There are no checks on the element length
 * other than having to fit into the given data.
 */
const u8 *cfg80211_find_ie(u8 eid, const u8 *ies, int len);

/**
 * cfg80211_find_vendor_ie - find vendor specific information element in data
 *
 * @oui: vendor OUI
 * @oui_type: vendor-specific OUI type
 * @ies: data consisting of IEs
 * @len: length of data
 *
 * This function will return %NULL if the vendor specific element ID
 * could not be found or if the element is invalid (claims to be
 * longer than the given data), or a pointer to the first byte
 * of the requested element, that is the byte containing the
 * element ID. There are no checks on the element length
 * other than having to fit into the given data.
 */
const u8 *cfg80211_find_vendor_ie(unsigned int oui, u8 oui_type,
				  const u8 *ies, int len);

/**
 * DOC: Regulatory enforcement infrastructure
 *
 * TODO
 */

/**
 * regulatory_hint - driver hint to the wireless core a regulatory domain
 * @wiphy: the wireless device giving the hint (used only for reporting
 *	conflicts)
 * @alpha2: the ISO/IEC 3166 alpha2 the driver claims its regulatory domain
 * 	should be in. If @rd is set this should be NULL. Note that if you
 * 	set this to NULL you should still set rd->alpha2 to some accepted
 * 	alpha2.
 *
 * Wireless drivers can use this function to hint to the wireless core
 * what it believes should be the current regulatory domain by
 * giving it an ISO/IEC 3166 alpha2 country code it knows its regulatory
 * domain should be in or by providing a completely build regulatory domain.
 * If the driver provides an ISO/IEC 3166 alpha2 userspace will be queried
 * for a regulatory domain structure for the respective country.
 *
 * The wiphy must have been registered to cfg80211 prior to this call.
 * For cfg80211 drivers this means you must first use wiphy_register(),
 * for mac80211 drivers you must first use ieee80211_register_hw().
 *
 * Drivers should check the return value, its possible you can get
 * an -ENOMEM.
 */
extern int regulatory_hint(struct wiphy *wiphy, const char *alpha2);

/**
 * wiphy_apply_custom_regulatory - apply a custom driver regulatory domain
 * @wiphy: the wireless device we want to process the regulatory domain on
 * @regd: the custom regulatory domain to use for this wiphy
 *
 * Drivers can sometimes have custom regulatory domains which do not apply
 * to a specific country. Drivers can use this to apply such custom regulatory
 * domains. This routine must be called prior to wiphy registration. The
 * custom regulatory domain will be trusted completely and as such previous
 * default channel settings will be disregarded. If no rule is found for a
 * channel on the regulatory domain the channel will be disabled.
 */
extern void wiphy_apply_custom_regulatory(
	struct wiphy *wiphy,
	const struct ieee80211_regdomain *regd);

/**
 * freq_reg_info - get regulatory information for the given frequency
 * @wiphy: the wiphy for which we want to process this rule for
 * @center_freq: Frequency in KHz for which we want regulatory information for
 * @desired_bw_khz: the desired max bandwidth you want to use per
 *	channel. Note that this is still 20 MHz if you want to use HT40
 *	as HT40 makes use of two channels for its 40 MHz width bandwidth.
 *	If set to 0 we'll assume you want the standard 20 MHz.
 * @reg_rule: the regulatory rule which we have for this frequency
 *
 * Use this function to get the regulatory rule for a specific frequency on
 * a given wireless device. If the device has a specific regulatory domain
 * it wants to follow we respect that unless a country IE has been received
 * and processed already.
 *
 * Returns 0 if it was able to find a valid regulatory rule which does
 * apply to the given center_freq otherwise it returns non-zero. It will
 * also return -ERANGE if we determine the given center_freq does not even have
 * a regulatory rule for a frequency range in the center_freq's band. See
 * freq_in_rule_band() for our current definition of a band -- this is purely
 * subjective and right now its 802.11 specific.
 */
extern int freq_reg_info(struct wiphy *wiphy,
			 u32 center_freq,
			 u32 desired_bw_khz,
			 const struct ieee80211_reg_rule **reg_rule);

/*
 * callbacks for asynchronous cfg80211 methods, notification
 * functions and BSS handling helpers
 */

/**
 * cfg80211_scan_done - notify that scan finished
 *
 * @request: the corresponding scan request
 * @aborted: set to true if the scan was aborted for any reason,
 *	userspace will be notified of that
 */
void cfg80211_scan_done(struct cfg80211_scan_request *request, bool aborted);

/**
 * cfg80211_sched_scan_results - notify that new scan results are available
 *
 * @wiphy: the wiphy which got scheduled scan results
 */
void cfg80211_sched_scan_results(struct wiphy *wiphy);

/**
 * cfg80211_sched_scan_stopped - notify that the scheduled scan has stopped
 *
 * @wiphy: the wiphy on which the scheduled scan stopped
 *
 * The driver can call this function to inform cfg80211 that the
 * scheduled scan had to be stopped, for whatever reason.  The driver
 * is then called back via the sched_scan_stop operation when done.
 */
void cfg80211_sched_scan_stopped(struct wiphy *wiphy);

/**
 * cfg80211_inform_bss_frame - inform cfg80211 of a received BSS frame
 *
 * @wiphy: the wiphy reporting the BSS
 * @channel: The channel the frame was received on
 * @mgmt: the management frame (probe response or beacon)
 * @len: length of the management frame
 * @signal: the signal strength, type depends on the wiphy's signal_type
 * @gfp: context flags
 *
 * This informs cfg80211 that BSS information was found and
 * the BSS should be updated/added.
 *
 * NOTE: Returns a referenced struct, must be released with cfg80211_put_bss()!
 */
struct cfg80211_bss * __must_check
cfg80211_inform_bss_frame(struct wiphy *wiphy,
			  struct ieee80211_channel *channel,
			  struct ieee80211_mgmt *mgmt, size_t len,
			  s32 signal, gfp_t gfp);

/**
 * cfg80211_inform_bss - inform cfg80211 of a new BSS
 *
 * @wiphy: the wiphy reporting the BSS
 * @channel: The channel the frame was received on
 * @bssid: the BSSID of the BSS
 * @timestamp: the TSF timestamp sent by the peer
 * @capability: the capability field sent by the peer
 * @beacon_interval: the beacon interval announced by the peer
 * @ie: additional IEs sent by the peer
 * @ielen: length of the additional IEs
 * @signal: the signal strength, type depends on the wiphy's signal_type
 * @gfp: context flags
 *
 * This informs cfg80211 that BSS information was found and
 * the BSS should be updated/added.
 *
 * NOTE: Returns a referenced struct, must be released with cfg80211_put_bss()!
 */
struct cfg80211_bss * __must_check
cfg80211_inform_bss(struct wiphy *wiphy,
		    struct ieee80211_channel *channel,
		    const u8 *bssid,
		    u64 timestamp, u16 capability, u16 beacon_interval,
		    const u8 *ie, size_t ielen,
		    s32 signal, gfp_t gfp);

struct cfg80211_bss *cfg80211_get_bss(struct wiphy *wiphy,
				      struct ieee80211_channel *channel,
				      const u8 *bssid,
				      const u8 *ssid, size_t ssid_len,
				      u16 capa_mask, u16 capa_val);
static inline struct cfg80211_bss *
cfg80211_get_ibss(struct wiphy *wiphy,
		  struct ieee80211_channel *channel,
		  const u8 *ssid, size_t ssid_len)
{
	return cfg80211_get_bss(wiphy, channel, NULL, ssid, ssid_len,
				WLAN_CAPABILITY_IBSS, WLAN_CAPABILITY_IBSS);
}

struct cfg80211_bss *cfg80211_get_mesh(struct wiphy *wiphy,
				       struct ieee80211_channel *channel,
				       const u8 *meshid, size_t meshidlen,
				       const u8 *meshcfg);
void cfg80211_put_bss(struct cfg80211_bss *bss);

/**
 * cfg80211_unlink_bss - unlink BSS from internal data structures
 * @wiphy: the wiphy
 * @bss: the bss to remove
 *
 * This function removes the given BSS from the internal data structures
 * thereby making it no longer show up in scan results etc. Use this
 * function when you detect a BSS is gone. Normally BSSes will also time
 * out, so it is not necessary to use this function at all.
 */
void cfg80211_unlink_bss(struct wiphy *wiphy, struct cfg80211_bss *bss);

/**
 * cfg80211_send_rx_auth - notification of processed authentication
 * @dev: network device
 * @buf: authentication frame (header + body)
 * @len: length of the frame data
 *
 * This function is called whenever an authentication has been processed in
 * station mode. The driver is required to call either this function or
 * cfg80211_send_auth_timeout() to indicate the result of cfg80211_ops::auth()
 * call. This function may sleep.
 */
void cfg80211_send_rx_auth(struct net_device *dev, const u8 *buf, size_t len);

/**
 * cfg80211_send_auth_timeout - notification of timed out authentication
 * @dev: network device
 * @addr: The MAC address of the device with which the authentication timed out
 *
 * This function may sleep.
 */
void cfg80211_send_auth_timeout(struct net_device *dev, const u8 *addr);

/**
 * __cfg80211_auth_canceled - notify cfg80211 that authentication was canceled
 * @dev: network device
 * @addr: The MAC address of the device with which the authentication timed out
 *
 * When a pending authentication had no action yet, the driver may decide
 * to not send a deauth frame, but in that case must calls this function
 * to tell cfg80211 about this decision. It is only valid to call this
 * function within the deauth() callback.
 */
void __cfg80211_auth_canceled(struct net_device *dev, const u8 *addr);

/**
 * cfg80211_send_rx_assoc - notification of processed association
 * @dev: network device
 * @buf: (re)association response frame (header + body)
 * @len: length of the frame data
 *
 * This function is called whenever a (re)association response has been
 * processed in station mode. The driver is required to call either this
 * function or cfg80211_send_assoc_timeout() to indicate the result of
 * cfg80211_ops::assoc() call. This function may sleep.
 */
void cfg80211_send_rx_assoc(struct net_device *dev, const u8 *buf, size_t len);

/**
 * cfg80211_send_assoc_timeout - notification of timed out association
 * @dev: network device
 * @addr: The MAC address of the device with which the association timed out
 *
 * This function may sleep.
 */
void cfg80211_send_assoc_timeout(struct net_device *dev, const u8 *addr);

/**
 * cfg80211_send_deauth - notification of processed deauthentication
 * @dev: network device
 * @buf: deauthentication frame (header + body)
 * @len: length of the frame data
 *
 * This function is called whenever deauthentication has been processed in
 * station mode. This includes both received deauthentication frames and
 * locally generated ones. This function may sleep.
 */
void cfg80211_send_deauth(struct net_device *dev, const u8 *buf, size_t len);

/**
 * __cfg80211_send_deauth - notification of processed deauthentication
 * @dev: network device
 * @buf: deauthentication frame (header + body)
 * @len: length of the frame data
 *
 * Like cfg80211_send_deauth(), but doesn't take the wdev lock.
 */
void __cfg80211_send_deauth(struct net_device *dev, const u8 *buf, size_t len);

/**
 * cfg80211_send_disassoc - notification of processed disassociation
 * @dev: network device
 * @buf: disassociation response frame (header + body)
 * @len: length of the frame data
 *
 * This function is called whenever disassociation has been processed in
 * station mode. This includes both received disassociation frames and locally
 * generated ones. This function may sleep.
 */
void cfg80211_send_disassoc(struct net_device *dev, const u8 *buf, size_t len);

/**
 * __cfg80211_send_disassoc - notification of processed disassociation
 * @dev: network device
 * @buf: disassociation response frame (header + body)
 * @len: length of the frame data
 *
 * Like cfg80211_send_disassoc(), but doesn't take the wdev lock.
 */
void __cfg80211_send_disassoc(struct net_device *dev, const u8 *buf,
	size_t len);

/**
 * cfg80211_send_unprot_deauth - notification of unprotected deauthentication
 * @dev: network device
 * @buf: deauthentication frame (header + body)
 * @len: length of the frame data
 *
 * This function is called whenever a received Deauthentication frame has been
 * dropped in station mode because of MFP being used but the Deauthentication
 * frame was not protected. This function may sleep.
 */
void cfg80211_send_unprot_deauth(struct net_device *dev, const u8 *buf,
				 size_t len);

/**
 * cfg80211_send_unprot_disassoc - notification of unprotected disassociation
 * @dev: network device
 * @buf: disassociation frame (header + body)
 * @len: length of the frame data
 *
 * This function is called whenever a received Disassociation frame has been
 * dropped in station mode because of MFP being used but the Disassociation
 * frame was not protected. This function may sleep.
 */
void cfg80211_send_unprot_disassoc(struct net_device *dev, const u8 *buf,
				   size_t len);

/**
 * cfg80211_michael_mic_failure - notification of Michael MIC failure (TKIP)
 * @dev: network device
 * @addr: The source MAC address of the frame
 * @key_type: The key type that the received frame used
 * @key_id: Key identifier (0..3). Can be -1 if missing.
 * @tsc: The TSC value of the frame that generated the MIC failure (6 octets)
 * @gfp: allocation flags
 *
 * This function is called whenever the local MAC detects a MIC failure in a
 * received frame. This matches with MLME-MICHAELMICFAILURE.indication()
 * primitive.
 */
void cfg80211_michael_mic_failure(struct net_device *dev, const u8 *addr,
				  enum nl80211_key_type key_type, int key_id,
				  const u8 *tsc, gfp_t gfp);

/**
 * cfg80211_ibss_joined - notify cfg80211 that device joined an IBSS
 *
 * @dev: network device
 * @bssid: the BSSID of the IBSS joined
 * @gfp: allocation flags
 *
 * This function notifies cfg80211 that the device joined an IBSS or
 * switched to a different BSSID. Before this function can be called,
 * either a beacon has to have been received from the IBSS, or one of
 * the cfg80211_inform_bss{,_frame} functions must have been called
 * with the locally generated beacon -- this guarantees that there is
 * always a scan result for this IBSS. cfg80211 will handle the rest.
 */
void cfg80211_ibss_joined(struct net_device *dev, const u8 *bssid, gfp_t gfp);

/**
 * cfg80211_notify_new_candidate - notify cfg80211 of a new mesh peer candidate
 *
 * @dev: network device
 * @macaddr: the MAC address of the new candidate
 * @ie: information elements advertised by the peer candidate
 * @ie_len: lenght of the information elements buffer
 * @gfp: allocation flags
 *
 * This function notifies cfg80211 that the mesh peer candidate has been
 * detected, most likely via a beacon or, less likely, via a probe response.
 * cfg80211 then sends a notification to userspace.
 */
void cfg80211_notify_new_peer_candidate(struct net_device *dev,
		const u8 *macaddr, const u8 *ie, u8 ie_len, gfp_t gfp);

/**
 * DOC: RFkill integration
 *
 * RFkill integration in cfg80211 is almost invisible to drivers,
 * as cfg80211 automatically registers an rfkill instance for each
 * wireless device it knows about. Soft kill is also translated
 * into disconnecting and turning all interfaces off, drivers are
 * expected to turn off the device when all interfaces are down.
 *
 * However, devices may have a hard RFkill line, in which case they
 * also need to interact with the rfkill subsystem, via cfg80211.
 * They can do this with a few helper functions documented here.
 */

/**
 * wiphy_rfkill_set_hw_state - notify cfg80211 about hw block state
 * @wiphy: the wiphy
 * @blocked: block status
 */
void wiphy_rfkill_set_hw_state(struct wiphy *wiphy, bool blocked);

/**
 * wiphy_rfkill_start_polling - start polling rfkill
 * @wiphy: the wiphy
 */
void wiphy_rfkill_start_polling(struct wiphy *wiphy);

/**
 * wiphy_rfkill_stop_polling - stop polling rfkill
 * @wiphy: the wiphy
 */
void wiphy_rfkill_stop_polling(struct wiphy *wiphy);

#ifdef CONFIG_NL80211_TESTMODE
/**
 * DOC: Test mode
 *
 * Test mode is a set of utility functions to allow drivers to
 * interact with driver-specific tools to aid, for instance,
 * factory programming.
 *
 * This chapter describes how drivers interact with it, for more
 * information see the nl80211 book's chapter on it.
 */

/**
 * cfg80211_testmode_alloc_reply_skb - allocate testmode reply
 * @wiphy: the wiphy
 * @approxlen: an upper bound of the length of the data that will
 *	be put into the skb
 *
 * This function allocates and pre-fills an skb for a reply to
 * the testmode command. Since it is intended for a reply, calling
 * it outside of the @testmode_cmd operation is invalid.
 *
 * The returned skb (or %NULL if any errors happen) is pre-filled
 * with the wiphy index and set up in a way that any data that is
 * put into the skb (with skb_put(), nla_put() or similar) will end
 * up being within the %NL80211_ATTR_TESTDATA attribute, so all that
 * needs to be done with the skb is adding data for the corresponding
 * userspace tool which can then read that data out of the testdata
 * attribute. You must not modify the skb in any other way.
 *
 * When done, call cfg80211_testmode_reply() with the skb and return
 * its error code as the result of the @testmode_cmd operation.
 */
struct sk_buff *cfg80211_testmode_alloc_reply_skb(struct wiphy *wiphy,
						  int approxlen);

/**
 * cfg80211_testmode_reply - send the reply skb
 * @skb: The skb, must have been allocated with
 *	cfg80211_testmode_alloc_reply_skb()
 *
 * Returns an error code or 0 on success, since calling this
 * function will usually be the last thing before returning
 * from the @testmode_cmd you should return the error code.
 * Note that this function consumes the skb regardless of the
 * return value.
 */
int cfg80211_testmode_reply(struct sk_buff *skb);

/**
 * cfg80211_testmode_alloc_event_skb - allocate testmode event
 * @wiphy: the wiphy
 * @approxlen: an upper bound of the length of the data that will
 *	be put into the skb
 * @gfp: allocation flags
 *
 * This function allocates and pre-fills an skb for an event on the
 * testmode multicast group.
 *
 * The returned skb (or %NULL if any errors happen) is set up in the
 * same way as with cfg80211_testmode_alloc_reply_skb() but prepared
 * for an event. As there, you should simply add data to it that will
 * then end up in the %NL80211_ATTR_TESTDATA attribute. Again, you must
 * not modify the skb in any other way.
 *
 * When done filling the skb, call cfg80211_testmode_event() with the
 * skb to send the event.
 */
struct sk_buff *cfg80211_testmode_alloc_event_skb(struct wiphy *wiphy,
						  int approxlen, gfp_t gfp);

/**
 * cfg80211_testmode_event - send the event
 * @skb: The skb, must have been allocated with
 *	cfg80211_testmode_alloc_event_skb()
 * @gfp: allocation flags
 *
 * This function sends the given @skb, which must have been allocated
 * by cfg80211_testmode_alloc_event_skb(), as an event. It always
 * consumes it.
 */
void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp);

#define CFG80211_TESTMODE_CMD(cmd)	.testmode_cmd = (cmd),
#define CFG80211_TESTMODE_DUMP(cmd)	.testmode_dump = (cmd),
#else
#define CFG80211_TESTMODE_CMD(cmd)
#define CFG80211_TESTMODE_DUMP(cmd)
#endif

/**
 * cfg80211_connect_result - notify cfg80211 of connection result
 *
 * @dev: network device
 * @bssid: the BSSID of the AP
 * @req_ie: association request IEs (maybe be %NULL)
 * @req_ie_len: association request IEs length
 * @resp_ie: association response IEs (may be %NULL)
 * @resp_ie_len: assoc response IEs length
 * @status: status code, 0 for successful connection, use
 *	%WLAN_STATUS_UNSPECIFIED_FAILURE if your device cannot give you
 *	the real status code for failures.
 * @gfp: allocation flags
 *
 * It should be called by the underlying driver whenever connect() has
 * succeeded.
 */
void cfg80211_connect_result(struct net_device *dev, const u8 *bssid,
			     const u8 *req_ie, size_t req_ie_len,
			     const u8 *resp_ie, size_t resp_ie_len,
			     u16 status, gfp_t gfp);

/**
 * cfg80211_roamed - notify cfg80211 of roaming
 *
 * @dev: network device
 * @channel: the channel of the new AP
 * @bssid: the BSSID of the new AP
 * @req_ie: association request IEs (maybe be %NULL)
 * @req_ie_len: association request IEs length
 * @resp_ie: association response IEs (may be %NULL)
 * @resp_ie_len: assoc response IEs length
 * @gfp: allocation flags
 *
 * It should be called by the underlying driver whenever it roamed
 * from one AP to another while connected.
 */
void cfg80211_roamed(struct net_device *dev,
		     struct ieee80211_channel *channel,
		     const u8 *bssid,
		     const u8 *req_ie, size_t req_ie_len,
		     const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp);

/**
 * cfg80211_roamed_bss - notify cfg80211 of roaming
 *
 * @dev: network device
 * @bss: entry of bss to which STA got roamed
 * @req_ie: association request IEs (maybe be %NULL)
 * @req_ie_len: association request IEs length
 * @resp_ie: association response IEs (may be %NULL)
 * @resp_ie_len: assoc response IEs length
 * @gfp: allocation flags
 *
 * This is just a wrapper to notify cfg80211 of roaming event with driver
 * passing bss to avoid a race in timeout of the bss entry. It should be
 * called by the underlying driver whenever it roamed from one AP to another
 * while connected. Drivers which have roaming implemented in firmware
 * may use this function to avoid a race in bss entry timeout where the bss
 * entry of the new AP is seen in the driver, but gets timed out by the time
 * it is accessed in __cfg80211_roamed() due to delay in scheduling
 * rdev->event_work. In case of any failures, the reference is released
 * either in cfg80211_roamed_bss() or in __cfg80211_romed(), Otherwise,
 * it will be released while diconneting from the current bss.
 */
void cfg80211_roamed_bss(struct net_device *dev, struct cfg80211_bss *bss,
			 const u8 *req_ie, size_t req_ie_len,
			 const u8 *resp_ie, size_t resp_ie_len, gfp_t gfp);

/**
 * cfg80211_disconnected - notify cfg80211 that connection was dropped
 *
 * @dev: network device
 * @ie: information elements of the deauth/disassoc frame (may be %NULL)
 * @ie_len: length of IEs
 * @reason: reason code for the disconnection, set it to 0 if unknown
 * @gfp: allocation flags
 *
 * After it calls this function, the driver should enter an idle state
 * and not try to connect to any AP any more.
 */
void cfg80211_disconnected(struct net_device *dev, u16 reason,
			   u8 *ie, size_t ie_len, gfp_t gfp);

/**
 * cfg80211_ready_on_channel - notification of remain_on_channel start
 * @dev: network device
 * @cookie: the request cookie
 * @chan: The current channel (from remain_on_channel request)
 * @channel_type: Channel type
 * @duration: Duration in milliseconds that the driver intents to remain on the
 *	channel
 * @gfp: allocation flags
 */
void cfg80211_ready_on_channel(struct net_device *dev, u64 cookie,
			       struct ieee80211_channel *chan,
			       enum nl80211_channel_type channel_type,
			       unsigned int duration, gfp_t gfp);

/**
 * cfg80211_remain_on_channel_expired - remain_on_channel duration expired
 * @dev: network device
 * @cookie: the request cookie
 * @chan: The current channel (from remain_on_channel request)
 * @channel_type: Channel type
 * @gfp: allocation flags
 */
void cfg80211_remain_on_channel_expired(struct net_device *dev,
					u64 cookie,
					struct ieee80211_channel *chan,
					enum nl80211_channel_type channel_type,
					gfp_t gfp);


/**
 * cfg80211_new_sta - notify userspace about station
 *
 * @dev: the netdev
 * @mac_addr: the station's address
 * @sinfo: the station information
 * @gfp: allocation flags
 */
void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
		      struct station_info *sinfo, gfp_t gfp);

/**
 * cfg80211_del_sta - notify userspace about deletion of a station
 *
 * @dev: the netdev
 * @mac_addr: the station's address
 * @gfp: allocation flags
 */
void cfg80211_del_sta(struct net_device *dev, const u8 *mac_addr, gfp_t gfp);

/**
 * cfg80211_rx_mgmt - notification of received, unprocessed management frame
 * @dev: network device
 * @freq: Frequency on which the frame was received in MHz
 * @buf: Management frame (header + body)
 * @len: length of the frame data
 * @gfp: context flags
 *
 * Returns %true if a user space application has registered for this frame.
 * For action frames, that makes it responsible for rejecting unrecognized
 * action frames; %false otherwise, in which case for action frames the
 * driver is responsible for rejecting the frame.
 *
 * This function is called whenever an Action frame is received for a station
 * mode interface, but is not processed in kernel.
 */
bool cfg80211_rx_mgmt(struct net_device *dev, int freq, const u8 *buf,
		      size_t len, gfp_t gfp);

/**
 * cfg80211_mgmt_tx_status - notification of TX status for management frame
 * @dev: network device
 * @cookie: Cookie returned by cfg80211_ops::mgmt_tx()
 * @buf: Management frame (header + body)
 * @len: length of the frame data
 * @ack: Whether frame was acknowledged
 * @gfp: context flags
 *
 * This function is called whenever a management frame was requested to be
 * transmitted with cfg80211_ops::mgmt_tx() to report the TX status of the
 * transmission attempt.
 */
void cfg80211_mgmt_tx_status(struct net_device *dev, u64 cookie,
			     const u8 *buf, size_t len, bool ack, gfp_t gfp);


/**
 * cfg80211_cqm_rssi_notify - connection quality monitoring rssi event
 * @dev: network device
 * @rssi_event: the triggered RSSI event
 * @gfp: context flags
 *
 * This function is called when a configured connection quality monitoring
 * rssi threshold reached event occurs.
 */
void cfg80211_cqm_rssi_notify(struct net_device *dev,
			      enum nl80211_cqm_rssi_threshold_event rssi_event,
			      gfp_t gfp);

/**
 * cfg80211_cqm_pktloss_notify - notify userspace about packetloss to peer
 * @dev: network device
 * @peer: peer's MAC address
 * @num_packets: how many packets were lost -- should be a fixed threshold
 *	but probably no less than maybe 50, or maybe a throughput dependent
 *	threshold (to account for temporary interference)
 * @gfp: context flags
 */
void cfg80211_cqm_pktloss_notify(struct net_device *dev,
				 const u8 *peer, u32 num_packets, gfp_t gfp);

/**
 * cfg80211_gtk_rekey_notify - notify userspace about driver rekeying
 * @dev: network device
 * @bssid: BSSID of AP (to avoid races)
 * @replay_ctr: new replay counter
 * @gfp: allocation flags
 */
void cfg80211_gtk_rekey_notify(struct net_device *dev, const u8 *bssid,
			       const u8 *replay_ctr, gfp_t gfp);

/**
 * cfg80211_pmksa_candidate_notify - notify about PMKSA caching candidate
 * @dev: network device
 * @index: candidate index (the smaller the index, the higher the priority)
 * @bssid: BSSID of AP
 * @preauth: Whether AP advertises support for RSN pre-authentication
 * @gfp: allocation flags
 */
void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
				     const u8 *bssid, bool preauth, gfp_t gfp);

/**
 * cfg80211_rx_spurious_frame - inform userspace about a spurious frame
 * @dev: The device the frame matched to
 * @addr: the transmitter address
 * @gfp: context flags
 *
 * This function is used in AP mode (only!) to inform userspace that
 * a spurious class 3 frame was received, to be able to deauth the
 * sender.
 * Returns %true if the frame was passed to userspace (or this failed
 * for a reason other than not having a subscription.)
 */
bool cfg80211_rx_spurious_frame(struct net_device *dev,
				const u8 *addr, gfp_t gfp);

/**
 * cfg80211_rx_unexpected_4addr_frame - inform about unexpected WDS frame
 * @dev: The device the frame matched to
 * @addr: the transmitter address
 * @gfp: context flags
 *
 * This function is used in AP mode (only!) to inform userspace that
 * an associated station sent a 4addr frame but that wasn't expected.
 * It is allowed and desirable to send this event only once for each
 * station to avoid event flooding.
 * Returns %true if the frame was passed to userspace (or this failed
 * for a reason other than not having a subscription.)
 */
bool cfg80211_rx_unexpected_4addr_frame(struct net_device *dev,
					const u8 *addr, gfp_t gfp);

/**
 * cfg80211_probe_status - notify userspace about probe status
 * @dev: the device the probe was sent on
 * @addr: the address of the peer
 * @cookie: the cookie filled in @probe_client previously
 * @acked: indicates whether probe was acked or not
 * @gfp: allocation flags
 */
void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
			   u64 cookie, bool acked, gfp_t gfp);

/**
 * cfg80211_report_obss_beacon - report beacon from other APs
 * @wiphy: The wiphy that received the beacon
 * @frame: the frame
 * @len: length of the frame
 * @freq: frequency the frame was received on
 * @gfp: allocation flags
 *
 * Use this function to report to userspace when a beacon was
 * received. It is not useful to call this when there is no
 * netdev that is in AP/GO mode.
 */
void cfg80211_report_obss_beacon(struct wiphy *wiphy,
				 const u8 *frame, size_t len,
				 int freq, gfp_t gfp);

/*
 * cfg80211_can_beacon_sec_chan - test if ht40 on extension channel can be used
 * @wiphy: the wiphy
 * @chan: main channel
 * @channel_type: HT mode
 */
int cfg80211_can_beacon_sec_chan(struct wiphy *wiphy,
				 struct ieee80211_channel *chan,
				 enum nl80211_channel_type channel_type);

/* Logging, debugging and troubleshooting/diagnostic helpers. */

/* wiphy_printk helpers, similar to dev_printk */

#define wiphy_printk(level, wiphy, format, args...)		\
	dev_printk(level, &(wiphy)->dev, format, ##args)
#define wiphy_emerg(wiphy, format, args...)			\
	dev_emerg(&(wiphy)->dev, format, ##args)
#define wiphy_alert(wiphy, format, args...)			\
	dev_alert(&(wiphy)->dev, format, ##args)
#define wiphy_crit(wiphy, format, args...)			\
	dev_crit(&(wiphy)->dev, format, ##args)
#define wiphy_err(wiphy, format, args...)			\
	dev_err(&(wiphy)->dev, format, ##args)
#define wiphy_warn(wiphy, format, args...)			\
	dev_warn(&(wiphy)->dev, format, ##args)
#define wiphy_notice(wiphy, format, args...)			\
	dev_notice(&(wiphy)->dev, format, ##args)
#define wiphy_info(wiphy, format, args...)			\
	dev_info(&(wiphy)->dev, format, ##args)

#define wiphy_debug(wiphy, format, args...)			\
	wiphy_printk(KERN_DEBUG, wiphy, format, ##args)

#define wiphy_dbg(wiphy, format, args...)			\
	dev_dbg(&(wiphy)->dev, format, ##args)

#if defined(VERBOSE_DEBUG)
#define wiphy_vdbg	wiphy_dbg
#else
#define wiphy_vdbg(wiphy, format, args...)				\
({									\
	if (0)								\
		wiphy_printk(KERN_DEBUG, wiphy, format, ##args);	\
	0;								\
})
#endif

/*
 * wiphy_WARN() acts like wiphy_printk(), but with the key difference
 * of using a WARN/WARN_ON to get the message out, including the
 * file/line information and a backtrace.
 */
#define wiphy_WARN(wiphy, format, args...)			\
	WARN(1, "wiphy: %s\n" format, wiphy_name(wiphy), ##args);

#endif /* __NET_CFG80211_H */