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1 /*      $NetBSD: if_ieee80211.h,v 1.5 2000/07/21 04:47:40 onoe Exp $    */
2 /* $FreeBSD$ */
3
4 #ifndef _NET_IF_IEEE80211_H_
5 #define _NET_IF_IEEE80211_H_
6
7 /*
8  * generic definitions for IEEE 802.11 frames
9  */
10 struct ieee80211_frame {
11         u_int8_t        i_fc[2];
12         u_int8_t        i_dur[2];
13         u_int8_t        i_addr1[ETHER_ADDR_LEN];
14         u_int8_t        i_addr2[ETHER_ADDR_LEN];
15         u_int8_t        i_addr3[ETHER_ADDR_LEN];
16         u_int8_t        i_seq[2];
17         /* possibly followed by addr4[ETHER_ADDR_LEN]; */
18 };
19
20 #define IEEE80211_FC0_VERSION_MASK              0x03
21 #define IEEE80211_FC0_VERSION_0                 0x00
22 #define IEEE80211_FC0_TYPE_MASK                 0x0c
23 #define IEEE80211_FC0_TYPE_MGT                  0x00
24 #define IEEE80211_FC0_TYPE_CTL                  0x04
25 #define IEEE80211_FC0_TYPE_DATA                 0x08
26
27 #define IEEE80211_FC0_SUBTYPE_MASK              0xf0
28 /* for TYPE_MGT */
29 #define IEEE80211_FC0_SUBTYPE_ASSOC_REQ         0x00
30 #define IEEE80211_FC0_SUBTYPE_ASSOC_RESP        0x10
31 #define IEEE80211_FC0_SUBTYPE_REASSOC_REQ       0x20
32 #define IEEE80211_FC0_SUBTYPE_REASSOC_RESP      0x30
33 #define IEEE80211_FC0_SUBTYPE_PROBE_REQ         0x40
34 #define IEEE80211_FC0_SUBTYPE_PROBE_RESP        0x50
35 #define IEEE80211_FC0_SUBTYPE_BEACON            0x80
36 #define IEEE80211_FC0_SUBTYPE_ATIM              0x90
37 #define IEEE80211_FC0_SUBTYPE_DISASSOC          0xa0
38 #define IEEE80211_FC0_SUBTYPE_AUTH              0xb0
39 #define IEEE80211_FC0_SUBTYPE_DEAUTH            0xc0
40 /* for TYPE_CTL */
41 #define IEEE80211_FC0_SUBTYPE_PS_POLL           0xa0
42 #define IEEE80211_FC0_SUBTYPE_RTS               0xb0
43 #define IEEE80211_FC0_SUBTYPE_CTS               0xc0
44 #define IEEE80211_FC0_SUBTYPE_ACK               0xd0
45 #define IEEE80211_FC0_SUBTYPE_CF_END            0xe0
46 #define IEEE80211_FC0_SUBTYPE_CF_END_ACK        0xf0
47 /* for TYPE_DATA (bit combination) */
48 #define IEEE80211_FC0_SUBTYPE_CF_ACK            0x10
49 #define IEEE80211_FC0_SUBTYPE_CF_POLL           0x20
50 #define IEEE80211_FC0_SUBTYPE_NODATA            0x40
51
52 #define IEEE80211_FC1_DIR_MASK                  0x03
53 #define IEEE80211_FC1_DIR_NODS                  0x00    /* STA->STA */
54 #define IEEE80211_FC1_DIR_TODS                  0x01    /* STA->AP  */
55 #define IEEE80211_FC1_DIR_FROMDS                0x02    /* AP ->STA */
56 #define IEEE80211_FC1_DIR_DSTODS                0x03    /* AP ->AP  */
57
58 #define IEEE80211_FC1_MORE_FRAG                 0x04
59 #define IEEE80211_FC1_RETRY                     0x08
60 #define IEEE80211_FC1_PWR_MGT                   0x10
61 #define IEEE80211_FC1_MORE_DATA                 0x20
62 #define IEEE80211_FC1_WEP                       0x40
63 #define IEEE80211_FC1_ORDER                     0x80
64
65 /*
66  * Management Frames
67  */
68
69 #define IEEE80211_ELEMID_SSID                   0
70 #define IEEE80211_ELEMID_RATES                  1
71 #define IEEE80211_ELEMID_FHPARMS                2
72 #define IEEE80211_ELEMID_DSPARMS                3
73 #define IEEE80211_ELEMID_CFPARMS                4
74 #define IEEE80211_ELEMID_TIM                    5
75 #define IEEE80211_ELEMID_IBSSPARMS              6
76 #define IEEE80211_ELEMID_CHALLENGE              16
77
78 #define IEEE80211_AUTH_ALG_OPEN                 0x0000
79 #define IEEE80211_AUTH_ALG_SHARED               0x0001
80
81 #define IEEE80211_CAPINFO_ESS                   0x01
82 #define IEEE80211_CAPINFO_IBSS                  0x02
83 #define IEEE80211_CAPINFO_CF_POLLABLE           0x04
84 #define IEEE80211_CAPINFO_CF_POLLREQ            0x08
85 #define IEEE80211_CAPINFO_PRIVACY               0x10
86
87 #define IEEE80211_REASON_UNSPECIFIED            1
88 #define IEEE80211_REASON_AUTH_EXPIRE            2
89 #define IEEE80211_REASON_AUTH_LEAVE             3
90 #define IEEE80211_REASON_ASSOC_EXPIRE           4
91 #define IEEE80211_REASON_ASSOC_TOOMANY          5
92 #define IEEE80211_REASON_NOT_AUTHED             6  
93 #define IEEE80211_REASON_NOT_ASSOCED            7
94 #define IEEE80211_REASON_ASSOC_LEAVE            8
95 #define IEEE80211_REASON_ASSOC_NOT_AUTHED       9
96
97 #define IEEE80211_STATUS_UNSPECIFIED            1
98 #define IEEE80211_STATUS_CAPINFO                10
99 #define IEEE80211_STATUS_NOT_ASSOCED            11
100 #define IEEE80211_STATUS_OTHER                  12
101 #define IEEE80211_STATUS_ALG                    13
102 #define IEEE80211_STATUS_SEQUENCE               14
103 #define IEEE80211_STATUS_CHALLENGE              15
104 #define IEEE80211_STATUS_TIMEOUT                16
105
106 #define IEEE80211_WEP_KEYLEN                    5       /* 40bit */
107 #define IEEE80211_WEP_IVLEN                     3       /* 24bit */
108 #define IEEE80211_WEP_KIDLEN                    1       /* 1 octet */
109 #define IEEE80211_WEP_CRCLEN                    4       /* CRC-32 */
110 #define IEEE80211_WEP_NKID                      4       /* number of key ids */
111
112 #define IEEE80211_NWID_LEN                      32
113
114 /* nwid is pointed at by ifr.ifr_data */
115 struct ieee80211_nwid {
116         u_int8_t        i_len;
117         u_int8_t        i_nwid[IEEE80211_NWID_LEN];
118 };
119
120 #define SIOCS80211NWID          _IOWR('i', 230, struct ifreq)
121 #define SIOCG80211NWID          _IOWR('i', 231, struct ifreq)
122
123 /* the first member must be matched with struct ifreq */
124 struct ieee80211_nwkey {
125         char            i_name[IFNAMSIZ];       /* if_name, e.g. "wi0" */
126         int             i_wepon;                /* wep enabled flag */
127         int             i_defkid;               /* default encrypt key id */
128         struct {
129                 int             i_keylen;
130                 u_int8_t        *i_keydat;
131         }               i_key[IEEE80211_WEP_NKID];
132 };
133 #define SIOCS80211NWKEY          _IOW('i', 232, struct ieee80211_nwkey)
134 #define SIOCG80211NWKEY         _IOWR('i', 233, struct ieee80211_nwkey)
135
136 #endif /* !_NET_IF_IEEE80211_H_ */