1 /*-
2 * Copyright (c) 2001 Atsushi Onoe
3 * Copyright (c) 2002, 2003 Sam Leffler, Errno Consulting
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * 3. The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
16 *
17 * Alternatively, this software may be distributed under the terms of the
18 * GNU General Public License ("GPL") version 2 as published by the Free
19 * Software Foundation.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
24 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
26 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
30 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 *
32 * $FreeBSD: releng/5.3/sys/net80211/ieee80211_var.h 127916 2004-04-05 22:10:26Z sam $
33 */
34 #ifndef _NET80211_IEEE80211_VAR_H_
35 #define _NET80211_IEEE80211_VAR_H_
36
37 /*
38 * Definitions for IEEE 802.11 drivers.
39 */
40
41 #include <net80211/ieee80211.h>
42 #include <net80211/ieee80211_crypto.h>
43 #include <net80211/ieee80211_ioctl.h> /* for ieee80211_stats */
44 #include <net80211/ieee80211_node.h>
45 #include <net80211/ieee80211_proto.h>
46
47 #define IEEE80211_CHAN_MAX 255
48 #define IEEE80211_CHAN_ANY 0xffff /* token for ``any channel'' */
49 #define IEEE80211_CHAN_ANYC \
50 ((struct ieee80211_channel *) IEEE80211_CHAN_ANY)
51
52 #define IEEE80211_TXPOWER_MAX 100 /* max power */
53 #define IEEE80211_TXPOWER_MIN 0 /* kill radio (if possible) */
54
55 enum ieee80211_phytype {
56 IEEE80211_T_DS, /* direct sequence spread spectrum */
57 IEEE80211_T_FH, /* frequency hopping */
58 IEEE80211_T_OFDM, /* frequency division multiplexing */
59 IEEE80211_T_TURBO, /* high rate OFDM, aka turbo mode */
60 };
61 #define IEEE80211_T_CCK IEEE80211_T_DS /* more common nomenclature */
62
63 /* XXX not really a mode; there are really multiple PHY's */
64 enum ieee80211_phymode {
65 IEEE80211_MODE_AUTO = 0, /* autoselect */
66 IEEE80211_MODE_11A = 1, /* 5GHz, OFDM */
67 IEEE80211_MODE_11B = 2, /* 2GHz, CCK */
68 IEEE80211_MODE_11G = 3, /* 2GHz, OFDM */
69 IEEE80211_MODE_FH = 4, /* 2GHz, GFSK */
70 IEEE80211_MODE_TURBO = 5, /* 5GHz, OFDM, 2x clock */
71 };
72 #define IEEE80211_MODE_MAX (IEEE80211_MODE_TURBO+1)
73
74 enum ieee80211_opmode {
75 IEEE80211_M_STA = 1, /* infrastructure station */
76 IEEE80211_M_IBSS = 0, /* IBSS (adhoc) station */
77 IEEE80211_M_AHDEMO = 3, /* Old lucent compatible adhoc demo */
78 IEEE80211_M_HOSTAP = 6, /* Software Access Point */
79 IEEE80211_M_MONITOR = 8 /* Monitor mode */
80 };
81
82 /*
83 * 802.11g protection mode.
84 */
85 enum ieee80211_protmode {
86 IEEE80211_PROT_NONE = 0, /* no protection */
87 IEEE80211_PROT_CTSONLY = 1, /* CTS to self */
88 IEEE80211_PROT_RTSCTS = 2, /* RTS-CTS */
89 };
90
91 /*
92 * Channels are specified by frequency and attributes.
93 */
94 struct ieee80211_channel {
95 u_int16_t ic_freq; /* setting in Mhz */
96 u_int16_t ic_flags; /* see below */
97 };
98
99 /* bits 0-3 are for private use by drivers */
100 /* channel attributes */
101 #define IEEE80211_CHAN_TURBO 0x0010 /* Turbo channel */
102 #define IEEE80211_CHAN_CCK 0x0020 /* CCK channel */
103 #define IEEE80211_CHAN_OFDM 0x0040 /* OFDM channel */
104 #define IEEE80211_CHAN_2GHZ 0x0080 /* 2 GHz spectrum channel. */
105 #define IEEE80211_CHAN_5GHZ 0x0100 /* 5 GHz spectrum channel */
106 #define IEEE80211_CHAN_PASSIVE 0x0200 /* Only passive scan allowed */
107 #define IEEE80211_CHAN_DYN 0x0400 /* Dynamic CCK-OFDM channel */
108 #define IEEE80211_CHAN_GFSK 0x0800 /* GFSK channel (FHSS PHY) */
109
110 /*
111 * Useful combinations of channel characteristics.
112 */
113 #define IEEE80211_CHAN_FHSS \
114 (IEEE80211_CHAN_2GHZ | IEEE80211_CHAN_GFSK)
115 #define IEEE80211_CHAN_A \
116 (IEEE80211_CHAN_5GHZ | IEEE80211_CHAN_OFDM)
117 #define IEEE80211_CHAN_B \
118 (IEEE80211_CHAN_2GHZ | IEEE80211_CHAN_CCK)
119 #define IEEE80211_CHAN_PUREG \
120 (IEEE80211_CHAN_2GHZ | IEEE80211_CHAN_OFDM)
121 #define IEEE80211_CHAN_G \
122 (IEEE80211_CHAN_2GHZ | IEEE80211_CHAN_DYN)
123 #define IEEE80211_CHAN_T \
124 (IEEE80211_CHAN_5GHZ | IEEE80211_CHAN_OFDM | IEEE80211_CHAN_TURBO)
125
126 #define IEEE80211_IS_CHAN_FHSS(_c) \
127 (((_c)->ic_flags & IEEE80211_CHAN_FHSS) == IEEE80211_CHAN_FHSS)
128 #define IEEE80211_IS_CHAN_A(_c) \
129 (((_c)->ic_flags & IEEE80211_CHAN_A) == IEEE80211_CHAN_A)
130 #define IEEE80211_IS_CHAN_B(_c) \
131 (((_c)->ic_flags & IEEE80211_CHAN_B) == IEEE80211_CHAN_B)
132 #define IEEE80211_IS_CHAN_PUREG(_c) \
133 (((_c)->ic_flags & IEEE80211_CHAN_PUREG) == IEEE80211_CHAN_PUREG)
134 #define IEEE80211_IS_CHAN_G(_c) \
135 (((_c)->ic_flags & IEEE80211_CHAN_G) == IEEE80211_CHAN_G)
136 #define IEEE80211_IS_CHAN_T(_c) \
137 (((_c)->ic_flags & IEEE80211_CHAN_T) == IEEE80211_CHAN_T)
138
139 #define IEEE80211_IS_CHAN_2GHZ(_c) \
140 (((_c)->ic_flags & IEEE80211_CHAN_2GHZ) != 0)
141 #define IEEE80211_IS_CHAN_5GHZ(_c) \
142 (((_c)->ic_flags & IEEE80211_CHAN_5GHZ) != 0)
143 #define IEEE80211_IS_CHAN_OFDM(_c) \
144 (((_c)->ic_flags & IEEE80211_CHAN_OFDM) != 0)
145 #define IEEE80211_IS_CHAN_CCK(_c) \
146 (((_c)->ic_flags & IEEE80211_CHAN_CCK) != 0)
147 #define IEEE80211_IS_CHAN_GFSK(_c) \
148 (((_c)->ic_flags & IEEE80211_CHAN_GFSK) != 0)
149
150 /* ni_chan encoding for FH phy */
151 #define IEEE80211_FH_CHANMOD 80
152 #define IEEE80211_FH_CHAN(set,pat) (((set)-1)*IEEE80211_FH_CHANMOD+(pat))
153 #define IEEE80211_FH_CHANSET(chan) ((chan)/IEEE80211_FH_CHANMOD+1)
154 #define IEEE80211_FH_CHANPAT(chan) ((chan)%IEEE80211_FH_CHANMOD)
155
156 struct ieee80211com {
157 struct arpcom ic_ac;
158 void (*ic_recv_mgmt)(struct ieee80211com *,
159 struct mbuf *, struct ieee80211_node *,
160 int, int, u_int32_t);
161 int (*ic_send_mgmt)(struct ieee80211com *,
162 struct ieee80211_node *, int, int);
163 int (*ic_newstate)(struct ieee80211com *,
164 enum ieee80211_state, int);
165 void (*ic_newassoc)(struct ieee80211com *,
166 struct ieee80211_node *, int);
167 u_int8_t ic_myaddr[IEEE80211_ADDR_LEN];
168 struct ieee80211_rateset ic_sup_rates[IEEE80211_MODE_MAX];
169 struct ieee80211_channel ic_channels[IEEE80211_CHAN_MAX+1];
170 u_char ic_chan_avail[roundup(IEEE80211_CHAN_MAX,NBBY)];
171 u_char ic_chan_active[roundup(IEEE80211_CHAN_MAX, NBBY)];
172 u_char ic_chan_scan[roundup(IEEE80211_CHAN_MAX,NBBY)];
173 struct ifqueue ic_mgtq;
174 u_int32_t ic_flags; /* state flags */
175 u_int32_t ic_caps; /* capabilities */
176 u_int16_t ic_modecaps; /* set of mode capabilities */
177 u_int16_t ic_curmode; /* current mode */
178 enum ieee80211_phytype ic_phytype; /* XXX wrong for multi-mode */
179 enum ieee80211_opmode ic_opmode; /* operation mode */
180 enum ieee80211_state ic_state; /* 802.11 state */
181 enum ieee80211_protmode ic_protmode; /* 802.11g protection mode */
182 struct ifmedia ic_media; /* interface media config */
183 struct bpf_if *ic_rawbpf; /* packet filter structure */
184 struct ieee80211_node *ic_bss; /* information for this node */
185 struct ieee80211_channel *ic_ibss_chan;
186 int ic_fixed_rate; /* index to ic_sup_rates[] */
187 u_int16_t ic_rtsthreshold;
188 u_int16_t ic_fragthreshold;
189 struct mtx ic_nodelock; /* on node table */
190 u_int ic_scangen; /* gen# for timeout scan */
191 struct ieee80211_node *(*ic_node_alloc)(struct ieee80211com *);
192 void (*ic_node_free)(struct ieee80211com *,
193 struct ieee80211_node *);
194 void (*ic_node_copy)(struct ieee80211com *,
195 struct ieee80211_node *,
196 const struct ieee80211_node *);
197 u_int8_t (*ic_node_getrssi)(struct ieee80211com *,
198 struct ieee80211_node *);
199 TAILQ_HEAD(, ieee80211_node) ic_node; /* information of all nodes */
200 LIST_HEAD(, ieee80211_node) ic_hash[IEEE80211_NODE_HASHSIZE];
201 u_int16_t ic_lintval; /* listen interval */
202 u_int16_t ic_holdover; /* PM hold over duration */
203 u_int16_t ic_txmin; /* min tx retry count */
204 u_int16_t ic_txmax; /* max tx retry count */
205 u_int16_t ic_txlifetime; /* tx lifetime */
206 u_int16_t ic_txpower; /* tx power setting (dbM) */
207 u_int16_t ic_bmisstimeout;/* beacon miss threshold (ms) */
208 int ic_mgt_timer; /* mgmt timeout */
209 int ic_inact_timer; /* inactivity timer wait */
210 int ic_des_esslen;
211 u_int8_t ic_des_essid[IEEE80211_NWID_LEN];
212 struct ieee80211_channel *ic_des_chan; /* desired channel */
213 u_int8_t ic_des_bssid[IEEE80211_ADDR_LEN];
214 struct ieee80211_wepkey ic_nw_keys[IEEE80211_WEP_NKID];
215 int ic_wep_txkey; /* default tx key index */
216 void *ic_wep_ctx; /* wep crypt context */
217 u_int32_t ic_iv; /* initial vector for wep */
218 struct ieee80211_stats ic_stats; /* statistics */
219 };
220 #define ic_if ic_ac.ac_if
221 #define ic_softc ic_if.if_softc
222
223 #define IEEE80211_ADDR_EQ(a1,a2) (memcmp(a1,a2,IEEE80211_ADDR_LEN) == 0)
224 #define IEEE80211_ADDR_COPY(dst,src) memcpy(dst,src,IEEE80211_ADDR_LEN)
225
226 /* ic_flags */
227 #define IEEE80211_F_ASCAN 0x00000001 /* STATUS: active scan */
228 #define IEEE80211_F_SIBSS 0x00000002 /* STATUS: start IBSS */
229 #define IEEE80211_F_WEPON 0x00000100 /* CONF: WEP enabled */
230 #define IEEE80211_F_IBSSON 0x00000200 /* CONF: IBSS creation enable */
231 #define IEEE80211_F_PMGTON 0x00000400 /* CONF: Power mgmt enable */
232 #define IEEE80211_F_DESBSSID 0x00000800 /* CONF: des_bssid is set */
233 #define IEEE80211_F_SCANAP 0x00001000 /* CONF: Scanning AP */
234 #define IEEE80211_F_ROAMING 0x00002000 /* CONF: roaming enabled */
235 #define IEEE80211_F_SWRETRY 0x00004000 /* CONF: sw tx retry enabled */
236 #define IEEE80211_F_TXPMGT 0x00018000 /* STATUS: tx power */
237 #define IEEE80211_F_TXPOW_OFF 0x00000000 /* TX Power: radio disabled */
238 #define IEEE80211_F_TXPOW_FIXED 0x00008000 /* TX Power: fixed rate */
239 #define IEEE80211_F_TXPOW_AUTO 0x00010000 /* TX Power: undefined */
240 #define IEEE80211_F_SHSLOT 0x00020000 /* CONF: short slot time */
241 #define IEEE80211_F_SHPREAMBLE 0x00040000 /* CONF: short preamble */
242 #define IEEE80211_F_USEPROT 0x00100000 /* STATUS: protection enabled */
243 #define IEEE80211_F_USEBARKER 0x00200000 /* STATUS: use barker preamble*/
244
245 /* ic_caps */
246 #define IEEE80211_C_WEP 0x00000001 /* CAPABILITY: WEP available */
247 #define IEEE80211_C_IBSS 0x00000002 /* CAPABILITY: IBSS available */
248 #define IEEE80211_C_PMGT 0x00000004 /* CAPABILITY: Power mgmt */
249 #define IEEE80211_C_HOSTAP 0x00000008 /* CAPABILITY: HOSTAP avail */
250 #define IEEE80211_C_AHDEMO 0x00000010 /* CAPABILITY: Old Adhoc Demo */
251 #define IEEE80211_C_SWRETRY 0x00000020 /* CAPABILITY: sw tx retry */
252 #define IEEE80211_C_TXPMGT 0x00000040 /* CAPABILITY: tx power mgmt */
253 #define IEEE80211_C_SHSLOT 0x00000080 /* CAPABILITY: short slottime */
254 #define IEEE80211_C_SHPREAMBLE 0x00000100 /* CAPABILITY: short preamble */
255 #define IEEE80211_C_MONITOR 0x00000200 /* CAPABILITY: monitor mode */
256
257 /* flags for ieee80211_fix_rate() */
258 #define IEEE80211_F_DOSORT 0x00000001 /* sort rate list */
259 #define IEEE80211_F_DOFRATE 0x00000002 /* use fixed rate */
260 #define IEEE80211_F_DONEGO 0x00000004 /* calc negotiated rate */
261 #define IEEE80211_F_DODEL 0x00000008 /* delete ignore rate */
262
263 void ieee80211_ifattach(struct ifnet *);
264 void ieee80211_ifdetach(struct ifnet *);
265 void ieee80211_media_init(struct ifnet *, ifm_change_cb_t, ifm_stat_cb_t);
266 int ieee80211_media_change(struct ifnet *);
267 void ieee80211_media_status(struct ifnet *, struct ifmediareq *);
268 int ieee80211_ioctl(struct ifnet *, u_long, caddr_t);
269 int ieee80211_cfgget(struct ifnet *, u_long, caddr_t);
270 int ieee80211_cfgset(struct ifnet *, u_long, caddr_t);
271 void ieee80211_watchdog(struct ifnet *);
272 int ieee80211_fix_rate(struct ieee80211com *, struct ieee80211_node *, int);
273 int ieee80211_rate2media(struct ieee80211com *, int,
274 enum ieee80211_phymode);
275 int ieee80211_media2rate(int);
276 u_int ieee80211_mhz2ieee(u_int, u_int);
277 u_int ieee80211_chan2ieee(struct ieee80211com *, struct ieee80211_channel *);
278 u_int ieee80211_ieee2mhz(u_int, u_int);
279 int ieee80211_setmode(struct ieee80211com *, enum ieee80211_phymode);
280 enum ieee80211_phymode ieee80211_chan2mode(struct ieee80211com *,
281 struct ieee80211_channel *);
282
283 #define IEEE80211_DEBUG
284 #ifdef IEEE80211_DEBUG
285 extern int ieee80211_debug;
286 #define IEEE80211_DPRINTF(X) if (ieee80211_debug) printf X
287 #define IEEE80211_DPRINTF2(X) if (ieee80211_debug>1) printf X
288 #else
289 #define IEEE80211_DPRINTF(X)
290 #define IEEE80211_DPRINTF2(X)
291 #endif
292
293 #endif /* _NET80211_IEEE80211_VAR_H_ */
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