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1/* $Id$ */
2/*
3 * Copyright (c) 2001
4 *Fortress Technologies
5 * Charlie Lenahan ( clenahan@fortresstech.com )
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that: (1) source code distributions
9 * retain the above copyright notice and this paragraph in its entirety, (2)
10 * distributions including binary code include the above copyright notice and
11 * this paragraph in its entirety in the documentation or other materials
12 * provided with the distribution, and (3) all advertising materials mentioning
13 * features or use of this software display the following acknowledgement:
14 * ``This product includes software developed by the University of California,
15 * Lawrence Berkeley Laboratory and its contributors.'' Neither the name of
16 * the University nor the names of its contributors may be used to endorse
17 * or promote products derived from this software without specific prior
18 * written permission.
19 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
20 * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
21 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
22 */
23
24#ifndef IEEE802_11_HH
25#define IEEE802_11_HH
26
27 #define IEEE802_11_FC_LEN2
28
29#define T_MGMT 0x0 /* management */
30#define T_CTRL 0x1 /* control */
31#define T_DATA 0x2 /* data */
32#define T_RESV 0x3 /* reserved */
33
34 #define ST_ASSOC_REQUEST 0x0
35 #define ST_ASSOC_RESPONSE 0x1
36 #define ST_REASSOC_REQUEST 0x2
37 #define ST_REASSOC_RESPONSE 0x3
38 #define ST_PROBE_REQUEST 0x4
39 #define ST_PROBE_RESPONSE 0x5
40 /* RESERVED 0x6 */
41 /* RESERVED 0x7 */
42 #define ST_BEACON 0x8
43 #define ST_ATIM 0x9
44 #define ST_DISASSOC 0xA
45 #define ST_AUTH 0xB
46 #define ST_DEAUTH 0xC
47 /* RESERVED 0xD */
48 /* RESERVED 0xE */
49 /* RESERVED 0xF */
50
51
52 #define CTRL_PS_POLL0xA
53 #define CTRL_RTS0xB
54 #define CTRL_CTS0xC
55 #define CTRL_ACK0xD
56 #define CTRL_CF_END0xE
57 #define CTRL_END_ACK0xF
58
59/*
60 * Bits in the frame control field.
61 */
62 #define FC_VERSION(fc) ((fc) & 0x3)
63 #define FC_TYPE(fc) (((fc) >> 2) & 0x3)
64 #define FC_SUBTYPE(fc) (((fc) >> 4) & 0xF)
65 #define FC_TO_DS(fc) ((fc) & 0x0100)
66 #define FC_FROM_DS(fc) ((fc) & 0x0200)
67 #define FC_MORE_FLAG(fc)((fc) & 0x0400)
68 #define FC_RETRY(fc) ((fc) & 0x0800)
69 #define FC_POWER_MGMT(fc)((fc) & 0x1000)
70 #define FC_MORE_DATA(fc)((fc) & 0x2000)
71 #define FC_WEP(fc) ((fc) & 0x4000)
72 #define FC_ORDER(fc) ((fc) & 0x8000)
73
74struct mgmt_header_t {
75 u_int16_tfc;
76 u_int16_t duration;
77 u_int8_tda[6];
78 u_int8_tsa[6];
79 u_int8_tbssid[6];
80 u_int16_tseq_ctrl;
81};
82
83 #define MGMT_HEADER_LEN(2+2+6+6+6+2)
84
85 #define CAPABILITY_ESS(cap)((cap) & 0x0001)
86 #define CAPABILITY_IBSS(cap)((cap) & 0x0002)
87 #define CAPABILITY_CFP(cap)((cap) & 0x0004)
88 #define CAPABILITY_CFP_REQ(cap)((cap) & 0x0008)
89 #define CAPABILITY_PRIVACY(cap)((cap) & 0x0010)
90
91struct ssid_t {
92 u_int8_telement_id;
93 u_int8_tlength;
94 u_char ssid[33]; /* 32 + 1 for null */
95} ;
96
97struct rates_t {
98 u_int8_telement_id;
99 u_int8_tlength;
100 u_int8_trate[8];
101};
102
103struct challenge_t {
104 u_int8_telement_id;
105 u_int8_tlength;
106 u_int8_ttext[254]; /* 1-253 + 1 for null */
107};
108struct fh_t {
109 u_int8_telement_id;
110 u_int8_tlength;
111 u_int16_tdwell_time;
112 u_int8_thop_set;
113 u_int8_t hop_pattern;
114 u_int8_thop_index;
115};
116
117struct ds_t {
118 u_int8_telement_id;
119 u_int8_tlength;
120 u_int8_tchannel;
121};
122
123struct cf_t {
124 u_int8_telement_id;
125 u_int8_tlength;
126 u_int8_tcount;
127 u_int8_tperiod;
128 u_int16_tmax_duration;
129 u_int16_tdur_remaing;
130};
131
132struct tim_t {
133 u_int8_telement_id;
134 u_int8_tlength;
135 u_int8_tcount;
136 u_int8_tperiod;
137 u_int8_tbitmap_control;
138 u_int8_tbitmap[251];
139};
140
141 #define E_SSID 0
142 #define E_RATES 1
143 #define E_FH 2
144 #define E_DS 3
145 #define E_CF 4
146 #define E_TIM 5
147 #define E_IBSS 6
148 #define E_CISCO 133
149 /* reserved 7 */
150 /* reserved 8 */
151 /* reserved 9 */
152 /* reserved 10 */
153 /* reserved 11 */
154 /* reserved 12 */
155 /* reserved 13 */
156 /* reserved 14 */
157 /* reserved 15 */
158 /* reserved 16 */
159
160 #define E_CHALLENGE 16
161 /* reserved 17 */
162 /* reserved 18 */
163 /* reserved 19 */
164 /* reserved 16 */
165 /* reserved 16 */
166
167
168struct mgmt_body_t {
169 u_int8_t timestamp[8];
170 u_int16_t beacon_interval;
171 u_int16_t listen_interval;
172 u_int16_t status_code;
173 u_int16_t aid;
174 u_char ap[6];
175 u_int16_treason_code;
176 u_int16_tauth_alg;
177 u_int16_tauth_trans_seq_num;
178 struct challenge_t challenge;
179 u_int16_tcapability_info;
180 struct ssid_tssid;
181 struct rates_t rates;
182 struct ds_tds;
183 struct cf_tcf;
184 struct fh_tfh;
185 struct tim_ttim;
186};
187
188struct ctrl_rts_t {
189 u_int16_tfc;
190 u_int16_tduration;
191 u_int8_tra[6];
192 u_int8_tta[6];
193 u_int8_tfcs[4];
194};
195
196 #define CTRL_RTS_LEN(2+2+6+6+4)
197
198struct ctrl_cts_t {
199 u_int16_tfc;
200 u_int16_tduration;
201 u_int8_tra[6];
202 u_int8_tfcs[4];
203};
204
205 #define CTRL_CTS_LEN(2+2+6+4)
206
207struct ctrl_ack_t {
208 u_int16_tfc;
209 u_int16_tduration;
210 u_int8_tra[6];
211 u_int8_tfcs[4];
212};
213
214 #define CTRL_ACK_LEN(2+2+6+4)
215
216struct ctrl_ps_poll_t {
217 u_int16_tfc;
218 u_int16_taid;
219 u_int8_tbssid[6];
220 u_int8_tta[6];
221 u_int8_tfcs[4];
222};
223
224 #define CTRL_PS_POLL_LEN(2+2+6+6+4)
225
226struct ctrl_end_t {
227 u_int16_tfc;
228 u_int16_tduration;
229 u_int8_tra[6];
230 u_int8_tbssid[6];
231 u_int8_tfcs[4];
232};
233
234 #define CTRL_END_LEN(2+2+6+6+4)
235
236struct ctrl_end_ack_t {
237 u_int16_tfc;
238 u_int16_tduration;
239 u_int8_tra[6];
240 u_int8_tbssid[6];
241 u_int8_tfcs[4];
242};
243
244 #define CTRL_END_ACK_LEN(2+2+6+6+4)
245
246 #define IV_IV(iv)((iv) & 0xFFFFFF)
247 #define IV_PAD(iv)(((iv) >> 24) & 0x3F)
248 #define IV_KEYID(iv)(((iv) >> 30) & 0x03)
249
250#endif /* IEEE802_11_HH */