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1/* @(#) $Header$ (LBL) */
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 #define IEEE802_11_FC_LEN2
25
26#define T_MGMT 0x0 /* management */
27#define T_CTRL 0x1 /* control */
28#define T_DATA 0x2 /* data */
29#define T_RESV 0x3 /* reserved */
30
31 #define ST_ASSOC_REQUEST 0x0
32 #define ST_ASSOC_RESPONSE 0x1
33 #define ST_REASSOC_REQUEST 0x2
34 #define ST_REASSOC_RESPONSE 0x3
35 #define ST_PROBE_REQUEST 0x4
36 #define ST_PROBE_RESPONSE 0x5
37 /* RESERVED 0x6 */
38 /* RESERVED 0x7 */
39 #define ST_BEACON 0x8
40 #define ST_ATIM 0x9
41 #define ST_DISASSOC 0xA
42 #define ST_AUTH 0xB
43 #define ST_DEAUTH 0xC
44 /* RESERVED 0xD */
45 /* RESERVED 0xE */
46 /* RESERVED 0xF */
47
48
49 #define CTRL_PS_POLL0xA
50 #define CTRL_RTS0xB
51 #define CTRL_CTS0xC
52 #define CTRL_ACK0xD
53 #define CTRL_CF_END0xE
54 #define CTRL_END_ACK0xF
55
56/*
57 * Bits in the frame control field.
58 */
59 #define FC_VERSION(fc) ((fc) & 0x3)
60 #define FC_TYPE(fc) (((fc) >> 2) & 0x3)
61 #define FC_SUBTYPE(fc) (((fc) >> 4) & 0xF)
62 #define FC_TO_DS(fc) ((fc) & 0x0100)
63 #define FC_FROM_DS(fc) ((fc) & 0x0200)
64 #define FC_MORE_FLAG(fc)((fc) & 0x0400)
65 #define FC_RETRY(fc) ((fc) & 0x0800)
66 #define FC_POWER_MGMT(fc)((fc) & 0x1000)
67 #define FC_MORE_DATA(fc)((fc) & 0x2000)
68 #define FC_WEP(fc) ((fc) & 0x4000)
69 #define FC_ORDER(fc) ((fc) & 0x8000)
70
71struct mgmt_header_t {
72 u_int16_tfc;
73 u_int16_t duration;
74 u_int8_tda[6];
75 u_int8_tsa[6];
76 u_int8_tbssid[6];
77 u_int16_tseq_ctrl;
78};
79
80 #define MGMT_HEADER_LEN(2+2+6+6+6+2)
81
82 #define CAPABILITY_ESS(cap)((cap) & 0x0001)
83 #define CAPABILITY_IBSS(cap)((cap) & 0x0002)
84 #define CAPABILITY_CFP(cap)((cap) & 0x0004)
85 #define CAPABILITY_CFP_REQ(cap)((cap) & 0x0008)
86 #define CAPABILITY_PRIVACY(cap)((cap) & 0x0010)
87
88struct ssid_t {
89 u_int8_telement_id;
90 u_int8_tlength;
91 u_char ssid[33]; /* 32 + 1 for null */
92} ;
93
94struct rates_t {
95 u_int8_telement_id;
96 u_int8_tlength;
97 u_int8_trate[8];
98};
99
100struct challenge_t {
101 u_int8_telement_id;
102 u_int8_tlength;
103 u_int8_ttext[254]; /* 1-253 + 1 for null */
104};
105struct fh_t {
106 u_int8_telement_id;
107 u_int8_tlength;
108 u_int16_tdwell_time;
109 u_int8_thop_set;
110 u_int8_t hop_pattern;
111 u_int8_thop_index;
112};
113
114struct ds_t {
115 u_int8_telement_id;
116 u_int8_tlength;
117 u_int8_tchannel;
118};
119
120struct cf_t {
121 u_int8_telement_id;
122 u_int8_tlength;
123 u_int8_tcount;
124 u_int8_tperiod;
125 u_int16_tmax_duration;
126 u_int16_tdur_remaing;
127};
128
129struct tim_t {
130 u_int8_telement_id;
131 u_int8_tlength;
132 u_int8_tcount;
133 u_int8_tperiod;
134 u_int8_tbitmap_control;
135 u_int8_tbitmap[251];
136};
137
138 #define E_SSID 0
139 #define E_RATES 1
140 #define E_FH 2
141 #define E_DS 3
142 #define E_CF 4
143 #define E_TIM 5
144 #define E_IBSS 6
145 #define E_CISCO 133
146 /* reserved 7 */
147 /* reserved 8 */
148 /* reserved 9 */
149 /* reserved 10 */
150 /* reserved 11 */
151 /* reserved 12 */
152 /* reserved 13 */
153 /* reserved 14 */
154 /* reserved 15 */
155 /* reserved 16 */
156
157 #define E_CHALLENGE 16
158 /* reserved 17 */
159 /* reserved 18 */
160 /* reserved 19 */
161 /* reserved 16 */
162 /* reserved 16 */
163
164
165struct mgmt_body_t {
166 u_int8_t timestamp[8];
167 u_int16_t beacon_interval;
168 u_int16_t listen_interval;
169 u_int16_t status_code;
170 u_int16_t aid;
171 u_char ap[6];
172 u_int16_treason_code;
173 u_int16_tauth_alg;
174 u_int16_tauth_trans_seq_num;
175 struct challenge_t challenge;
176 u_int16_tcapability_info;
177 struct ssid_tssid;
178 struct rates_t rates;
179 struct ds_tds;
180 struct cf_tcf;
181 struct fh_tfh;
182 struct tim_ttim;
183};
184
185struct ctrl_rts_t {
186 u_int16_tfc;
187 u_int16_tduration;
188 u_int8_tra[6];
189 u_int8_tta[6];
190 u_int8_tfcs[4];
191};
192
193 #define CTRL_RTS_LEN(2+2+6+6+4)
194
195struct ctrl_cts_t {
196 u_int16_tfc;
197 u_int16_tduration;
198 u_int8_tra[6];
199 u_int8_tfcs[4];
200};
201
202 #define CTRL_CTS_LEN(2+2+6+4)
203
204struct ctrl_ack_t {
205 u_int16_tfc;
206 u_int16_tduration;
207 u_int8_tra[6];
208 u_int8_tfcs[4];
209};
210
211 #define CTRL_ACK_LEN(2+2+6+4)
212
213struct ctrl_ps_poll_t {
214 u_int16_tfc;
215 u_int16_taid;
216 u_int8_tbssid[6];
217 u_int8_tta[6];
218 u_int8_tfcs[4];
219};
220
221 #define CTRL_PS_POLL_LEN(2+2+6+6+4)
222
223struct ctrl_end_t {
224 u_int16_tfc;
225 u_int16_tduration;
226 u_int8_tra[6];
227 u_int8_tbssid[6];
228 u_int8_tfcs[4];
229};
230
231 #define CTRL_END_LEN(2+2+6+6+4)
232
233struct ctrl_end_ack_t {
234 u_int16_tfc;
235 u_int16_tduration;
236 u_int8_tra[6];
237 u_int8_tbssid[6];
238 u_int8_tfcs[4];
239};
240
241 #define CTRL_END_ACK_LEN(2+2+6+6+4)
242
243 #define IV_IV(iv)((iv) & 0xFFFFFF)
244 #define IV_PAD(iv)(((iv) >> 24) & 0x3F)
245 #define IV_KEYID(iv)(((iv) >> 30) & 0x03)