1/*-
2 * Copyright (c) 2001 Atsushi Onoe
3 * Copyright (c) 2002-2009 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 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 *
| 1/*-
2 * Copyright (c) 2001 Atsushi Onoe
3 * Copyright (c) 2002-2009 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 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 *
|
27 */
28#ifndef _NET80211_IEEE80211_PROTO_H_
29#define _NET80211_IEEE80211_PROTO_H_
30
31/*
32 * 802.11 protocol implementation definitions.
33 */
34
35enum ieee80211_state {
36 IEEE80211_S_INIT = 0, /* default state */
37 IEEE80211_S_SCAN = 1, /* scanning */
38 IEEE80211_S_AUTH = 2, /* try to authenticate */
39 IEEE80211_S_ASSOC = 3, /* try to assoc */
40 IEEE80211_S_CAC = 4, /* doing channel availability check */
41 IEEE80211_S_RUN = 5, /* operational (e.g. associated) */
42 IEEE80211_S_CSA = 6, /* channel switch announce pending */
43 IEEE80211_S_SLEEP = 7, /* power save */
44};
45#define IEEE80211_S_MAX (IEEE80211_S_SLEEP+1)
46
47#define IEEE80211_SEND_MGMT(_ni,_type,_arg) \
48 ((*(_ni)->ni_ic->ic_send_mgmt)(_ni, _type, _arg))
49
50extern const char *ieee80211_mgt_subtype_name[];
51extern const char *ieee80211_phymode_name[IEEE80211_MODE_MAX];
52extern const int ieee80211_opcap[IEEE80211_OPMODE_MAX];
53
54void ieee80211_proto_attach(struct ieee80211com *);
55void ieee80211_proto_detach(struct ieee80211com *);
56void ieee80211_proto_vattach(struct ieee80211vap *);
57void ieee80211_proto_vdetach(struct ieee80211vap *);
58
59void ieee80211_syncifflag_locked(struct ieee80211com *, int flag);
60void ieee80211_syncflag(struct ieee80211vap *, int flag);
61void ieee80211_syncflag_ht(struct ieee80211vap *, int flag);
62void ieee80211_syncflag_ext(struct ieee80211vap *, int flag);
63
64#define ieee80211_input(ni, m, rssi, nf) \
65 ((ni)->ni_vap->iv_input(ni, m, rssi, nf))
66int ieee80211_input_all(struct ieee80211com *, struct mbuf *, int, int);
67struct ieee80211_bpf_params;
68int ieee80211_mgmt_output(struct ieee80211_node *, struct mbuf *, int,
69 struct ieee80211_bpf_params *);
70int ieee80211_raw_xmit(struct ieee80211_node *, struct mbuf *,
71 const struct ieee80211_bpf_params *);
72int ieee80211_output(struct ifnet *, struct mbuf *,
73 struct sockaddr *, struct route *ro);
74void ieee80211_send_setup(struct ieee80211_node *, struct mbuf *, int, int,
75 const uint8_t [IEEE80211_ADDR_LEN], const uint8_t [IEEE80211_ADDR_LEN],
76 const uint8_t [IEEE80211_ADDR_LEN]);
77void ieee80211_start(struct ifnet *);
78int ieee80211_send_nulldata(struct ieee80211_node *);
79int ieee80211_classify(struct ieee80211_node *, struct mbuf *m);
80struct mbuf *ieee80211_mbuf_adjust(struct ieee80211vap *, int,
81 struct ieee80211_key *, struct mbuf *);
82struct mbuf *ieee80211_encap(struct ieee80211vap *, struct ieee80211_node *,
83 struct mbuf *);
84int ieee80211_send_mgmt(struct ieee80211_node *, int, int);
85struct ieee80211_appie;
86int ieee80211_send_probereq(struct ieee80211_node *ni,
87 const uint8_t sa[IEEE80211_ADDR_LEN],
88 const uint8_t da[IEEE80211_ADDR_LEN],
89 const uint8_t bssid[IEEE80211_ADDR_LEN],
90 const uint8_t *ssid, size_t ssidlen);
91/*
92 * The formation of ProbeResponse frames requires guidance to
93 * deal with legacy clients. When the client is identified as
94 * "legacy 11b" ieee80211_send_proberesp is passed this token.
95 */
96#define IEEE80211_SEND_LEGACY_11B 0x1 /* legacy 11b client */
97#define IEEE80211_SEND_LEGACY_11 0x2 /* other legacy client */
98#define IEEE80211_SEND_LEGACY 0x3 /* any legacy client */
99struct mbuf *ieee80211_alloc_proberesp(struct ieee80211_node *, int);
100int ieee80211_send_proberesp(struct ieee80211vap *,
101 const uint8_t da[IEEE80211_ADDR_LEN], int);
102struct mbuf *ieee80211_alloc_rts(struct ieee80211com *ic,
103 const uint8_t [IEEE80211_ADDR_LEN],
104 const uint8_t [IEEE80211_ADDR_LEN], uint16_t);
105struct mbuf *ieee80211_alloc_cts(struct ieee80211com *,
106 const uint8_t [IEEE80211_ADDR_LEN], uint16_t);
107
108uint8_t *ieee80211_add_rates(uint8_t *, const struct ieee80211_rateset *);
109uint8_t *ieee80211_add_xrates(uint8_t *, const struct ieee80211_rateset *);
110uint16_t ieee80211_getcapinfo(struct ieee80211vap *,
111 struct ieee80211_channel *);
112
113void ieee80211_reset_erp(struct ieee80211com *);
114void ieee80211_set_shortslottime(struct ieee80211com *, int onoff);
115int ieee80211_iserp_rateset(const struct ieee80211_rateset *);
116void ieee80211_setbasicrates(struct ieee80211_rateset *,
117 enum ieee80211_phymode);
118void ieee80211_addbasicrates(struct ieee80211_rateset *,
119 enum ieee80211_phymode);
120
121/*
122 * Return the size of the 802.11 header for a management or data frame.
123 */
124static __inline int
125ieee80211_hdrsize(const void *data)
126{
127 const struct ieee80211_frame *wh = data;
128 int size = sizeof(struct ieee80211_frame);
129
130 /* NB: we don't handle control frames */
131 KASSERT((wh->i_fc[0]&IEEE80211_FC0_TYPE_MASK) != IEEE80211_FC0_TYPE_CTL,
132 ("%s: control frame", __func__));
133 if (IEEE80211_IS_DSTODS(wh))
134 size += IEEE80211_ADDR_LEN;
135 if (IEEE80211_QOS_HAS_SEQ(wh))
136 size += sizeof(uint16_t);
137 return size;
138}
139
140/*
141 * Like ieee80211_hdrsize, but handles any type of frame.
142 */
143static __inline int
144ieee80211_anyhdrsize(const void *data)
145{
146 const struct ieee80211_frame *wh = data;
147
148 if ((wh->i_fc[0]&IEEE80211_FC0_TYPE_MASK) == IEEE80211_FC0_TYPE_CTL) {
149 switch (wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK) {
150 case IEEE80211_FC0_SUBTYPE_CTS:
151 case IEEE80211_FC0_SUBTYPE_ACK:
152 return sizeof(struct ieee80211_frame_ack);
153 case IEEE80211_FC0_SUBTYPE_BAR:
154 return sizeof(struct ieee80211_frame_bar);
155 }
156 return sizeof(struct ieee80211_frame_min);
157 } else
158 return ieee80211_hdrsize(data);
159}
160
161/*
162 * Template for an in-kernel authenticator. Authenticators
163 * register with the protocol code and are typically loaded
164 * as separate modules as needed. One special authenticator
165 * is xauth; it intercepts requests so that protocols like
166 * WPA can be handled in user space.
167 */
168struct ieee80211_authenticator {
169 const char *ia_name; /* printable name */
170 int (*ia_attach)(struct ieee80211vap *);
171 void (*ia_detach)(struct ieee80211vap *);
172 void (*ia_node_join)(struct ieee80211_node *);
173 void (*ia_node_leave)(struct ieee80211_node *);
174};
175void ieee80211_authenticator_register(int type,
176 const struct ieee80211_authenticator *);
177void ieee80211_authenticator_unregister(int type);
178const struct ieee80211_authenticator *ieee80211_authenticator_get(int auth);
179
180struct ieee80211req;
181/*
182 * Template for an MAC ACL policy module. Such modules
183 * register with the protocol code and are passed the sender's
184 * address of each received auth frame for validation.
185 */
186struct ieee80211_aclator {
187 const char *iac_name; /* printable name */
188 int (*iac_attach)(struct ieee80211vap *);
189 void (*iac_detach)(struct ieee80211vap *);
190 int (*iac_check)(struct ieee80211vap *,
191 const uint8_t mac[IEEE80211_ADDR_LEN]);
192 int (*iac_add)(struct ieee80211vap *,
193 const uint8_t mac[IEEE80211_ADDR_LEN]);
194 int (*iac_remove)(struct ieee80211vap *,
195 const uint8_t mac[IEEE80211_ADDR_LEN]);
196 int (*iac_flush)(struct ieee80211vap *);
197 int (*iac_setpolicy)(struct ieee80211vap *, int);
198 int (*iac_getpolicy)(struct ieee80211vap *);
199 int (*iac_setioctl)(struct ieee80211vap *, struct ieee80211req *);
200 int (*iac_getioctl)(struct ieee80211vap *, struct ieee80211req *);
201};
202void ieee80211_aclator_register(const struct ieee80211_aclator *);
203void ieee80211_aclator_unregister(const struct ieee80211_aclator *);
204const struct ieee80211_aclator *ieee80211_aclator_get(const char *name);
205
206/* flags for ieee80211_fix_rate() */
207#define IEEE80211_F_DOSORT 0x00000001 /* sort rate list */
208#define IEEE80211_F_DOFRATE 0x00000002 /* use fixed legacy rate */
209#define IEEE80211_F_DONEGO 0x00000004 /* calc negotiated rate */
210#define IEEE80211_F_DODEL 0x00000008 /* delete ignore rate */
211#define IEEE80211_F_DOBRS 0x00000010 /* check basic rate set */
212#define IEEE80211_F_JOIN 0x00000020 /* sta joining our bss */
213#define IEEE80211_F_DOFMCS 0x00000040 /* use fixed HT rate */
214int ieee80211_fix_rate(struct ieee80211_node *,
215 struct ieee80211_rateset *, int);
216
217/*
218 * WME/WMM support.
219 */
220struct wmeParams {
221 uint8_t wmep_acm;
222 uint8_t wmep_aifsn;
223 uint8_t wmep_logcwmin; /* log2(cwmin) */
224 uint8_t wmep_logcwmax; /* log2(cwmax) */
225 uint8_t wmep_txopLimit;
226 uint8_t wmep_noackPolicy; /* 0 (ack), 1 (no ack) */
227};
228#define IEEE80211_TXOP_TO_US(_txop) ((_txop)<<5)
229#define IEEE80211_US_TO_TXOP(_us) ((_us)>>5)
230
231struct chanAccParams {
232 uint8_t cap_info; /* version of the current set */
233 struct wmeParams cap_wmeParams[WME_NUM_AC];
234};
235
236struct ieee80211_wme_state {
237 u_int wme_flags;
238#define WME_F_AGGRMODE 0x00000001 /* STATUS: WME agressive mode */
239 u_int wme_hipri_traffic; /* VI/VO frames in beacon interval */
240 u_int wme_hipri_switch_thresh;/* agressive mode switch thresh */
241 u_int wme_hipri_switch_hysteresis;/* agressive mode switch hysteresis */
242
243 struct wmeParams wme_params[4]; /* from assoc resp for each AC*/
244 struct chanAccParams wme_wmeChanParams; /* WME params applied to self */
245 struct chanAccParams wme_wmeBssChanParams;/* WME params bcast to stations */
246 struct chanAccParams wme_chanParams; /* params applied to self */
247 struct chanAccParams wme_bssChanParams; /* params bcast to stations */
248
249 int (*wme_update)(struct ieee80211com *);
250};
251
252void ieee80211_wme_initparams(struct ieee80211vap *);
253void ieee80211_wme_updateparams(struct ieee80211vap *);
254void ieee80211_wme_updateparams_locked(struct ieee80211vap *);
255
256/*
257 * Return the WME TID from a QoS frame. If no TID
258 * is present return the index for the "non-QoS" entry.
259 */
260static __inline uint8_t
261ieee80211_gettid(const struct ieee80211_frame *wh)
262{
263 uint8_t tid;
264
265 if (IEEE80211_QOS_HAS_SEQ(wh)) {
266 if (IEEE80211_IS_DSTODS(wh))
267 tid = ((const struct ieee80211_qosframe_addr4 *)wh)->
268 i_qos[0];
269 else
270 tid = ((const struct ieee80211_qosframe *)wh)->i_qos[0];
271 tid &= IEEE80211_QOS_TID;
272 } else
273 tid = IEEE80211_NONQOS_TID;
274 return tid;
275}
276
277void ieee80211_waitfor_parent(struct ieee80211com *);
278void ieee80211_start_locked(struct ieee80211vap *);
279void ieee80211_init(void *);
280void ieee80211_start_all(struct ieee80211com *);
281void ieee80211_stop_locked(struct ieee80211vap *);
282void ieee80211_stop(struct ieee80211vap *);
283void ieee80211_stop_all(struct ieee80211com *);
284void ieee80211_suspend_all(struct ieee80211com *);
285void ieee80211_resume_all(struct ieee80211com *);
286void ieee80211_dturbo_switch(struct ieee80211vap *, int newflags);
287void ieee80211_swbmiss(void *arg);
288void ieee80211_beacon_miss(struct ieee80211com *);
289int ieee80211_new_state(struct ieee80211vap *, enum ieee80211_state, int);
290void ieee80211_print_essid(const uint8_t *, int);
291void ieee80211_dump_pkt(struct ieee80211com *,
292 const uint8_t *, int, int, int);
293
294extern const char *ieee80211_opmode_name[];
295extern const char *ieee80211_state_name[IEEE80211_S_MAX];
296extern const char *ieee80211_wme_acnames[];
297
298/*
299 * Beacon frames constructed by ieee80211_beacon_alloc
300 * have the following structure filled in so drivers
301 * can update the frame later w/ minimal overhead.
302 */
303struct ieee80211_beacon_offsets {
304 uint8_t bo_flags[4]; /* update/state flags */
305 uint16_t *bo_caps; /* capabilities */
306 uint8_t *bo_cfp; /* start of CFParms element */
307 uint8_t *bo_tim; /* start of atim/dtim */
308 uint8_t *bo_wme; /* start of WME parameters */
309 uint8_t *bo_tdma; /* start of TDMA parameters */
310 uint8_t *bo_tim_trailer;/* start of fixed-size trailer */
311 uint16_t bo_tim_len; /* atim/dtim length in bytes */
312 uint16_t bo_tim_trailer_len;/* tim trailer length in bytes */
313 uint8_t *bo_erp; /* start of ERP element */
314 uint8_t *bo_htinfo; /* start of HT info element */
315 uint8_t *bo_ath; /* start of ATH parameters */
316 uint8_t *bo_appie; /* start of AppIE element */
317 uint16_t bo_appie_len; /* AppIE length in bytes */
| 27 */
28#ifndef _NET80211_IEEE80211_PROTO_H_
29#define _NET80211_IEEE80211_PROTO_H_
30
31/*
32 * 802.11 protocol implementation definitions.
33 */
34
35enum ieee80211_state {
36 IEEE80211_S_INIT = 0, /* default state */
37 IEEE80211_S_SCAN = 1, /* scanning */
38 IEEE80211_S_AUTH = 2, /* try to authenticate */
39 IEEE80211_S_ASSOC = 3, /* try to assoc */
40 IEEE80211_S_CAC = 4, /* doing channel availability check */
41 IEEE80211_S_RUN = 5, /* operational (e.g. associated) */
42 IEEE80211_S_CSA = 6, /* channel switch announce pending */
43 IEEE80211_S_SLEEP = 7, /* power save */
44};
45#define IEEE80211_S_MAX (IEEE80211_S_SLEEP+1)
46
47#define IEEE80211_SEND_MGMT(_ni,_type,_arg) \
48 ((*(_ni)->ni_ic->ic_send_mgmt)(_ni, _type, _arg))
49
50extern const char *ieee80211_mgt_subtype_name[];
51extern const char *ieee80211_phymode_name[IEEE80211_MODE_MAX];
52extern const int ieee80211_opcap[IEEE80211_OPMODE_MAX];
53
54void ieee80211_proto_attach(struct ieee80211com *);
55void ieee80211_proto_detach(struct ieee80211com *);
56void ieee80211_proto_vattach(struct ieee80211vap *);
57void ieee80211_proto_vdetach(struct ieee80211vap *);
58
59void ieee80211_syncifflag_locked(struct ieee80211com *, int flag);
60void ieee80211_syncflag(struct ieee80211vap *, int flag);
61void ieee80211_syncflag_ht(struct ieee80211vap *, int flag);
62void ieee80211_syncflag_ext(struct ieee80211vap *, int flag);
63
64#define ieee80211_input(ni, m, rssi, nf) \
65 ((ni)->ni_vap->iv_input(ni, m, rssi, nf))
66int ieee80211_input_all(struct ieee80211com *, struct mbuf *, int, int);
67struct ieee80211_bpf_params;
68int ieee80211_mgmt_output(struct ieee80211_node *, struct mbuf *, int,
69 struct ieee80211_bpf_params *);
70int ieee80211_raw_xmit(struct ieee80211_node *, struct mbuf *,
71 const struct ieee80211_bpf_params *);
72int ieee80211_output(struct ifnet *, struct mbuf *,
73 struct sockaddr *, struct route *ro);
74void ieee80211_send_setup(struct ieee80211_node *, struct mbuf *, int, int,
75 const uint8_t [IEEE80211_ADDR_LEN], const uint8_t [IEEE80211_ADDR_LEN],
76 const uint8_t [IEEE80211_ADDR_LEN]);
77void ieee80211_start(struct ifnet *);
78int ieee80211_send_nulldata(struct ieee80211_node *);
79int ieee80211_classify(struct ieee80211_node *, struct mbuf *m);
80struct mbuf *ieee80211_mbuf_adjust(struct ieee80211vap *, int,
81 struct ieee80211_key *, struct mbuf *);
82struct mbuf *ieee80211_encap(struct ieee80211vap *, struct ieee80211_node *,
83 struct mbuf *);
84int ieee80211_send_mgmt(struct ieee80211_node *, int, int);
85struct ieee80211_appie;
86int ieee80211_send_probereq(struct ieee80211_node *ni,
87 const uint8_t sa[IEEE80211_ADDR_LEN],
88 const uint8_t da[IEEE80211_ADDR_LEN],
89 const uint8_t bssid[IEEE80211_ADDR_LEN],
90 const uint8_t *ssid, size_t ssidlen);
91/*
92 * The formation of ProbeResponse frames requires guidance to
93 * deal with legacy clients. When the client is identified as
94 * "legacy 11b" ieee80211_send_proberesp is passed this token.
95 */
96#define IEEE80211_SEND_LEGACY_11B 0x1 /* legacy 11b client */
97#define IEEE80211_SEND_LEGACY_11 0x2 /* other legacy client */
98#define IEEE80211_SEND_LEGACY 0x3 /* any legacy client */
99struct mbuf *ieee80211_alloc_proberesp(struct ieee80211_node *, int);
100int ieee80211_send_proberesp(struct ieee80211vap *,
101 const uint8_t da[IEEE80211_ADDR_LEN], int);
102struct mbuf *ieee80211_alloc_rts(struct ieee80211com *ic,
103 const uint8_t [IEEE80211_ADDR_LEN],
104 const uint8_t [IEEE80211_ADDR_LEN], uint16_t);
105struct mbuf *ieee80211_alloc_cts(struct ieee80211com *,
106 const uint8_t [IEEE80211_ADDR_LEN], uint16_t);
107
108uint8_t *ieee80211_add_rates(uint8_t *, const struct ieee80211_rateset *);
109uint8_t *ieee80211_add_xrates(uint8_t *, const struct ieee80211_rateset *);
110uint16_t ieee80211_getcapinfo(struct ieee80211vap *,
111 struct ieee80211_channel *);
112
113void ieee80211_reset_erp(struct ieee80211com *);
114void ieee80211_set_shortslottime(struct ieee80211com *, int onoff);
115int ieee80211_iserp_rateset(const struct ieee80211_rateset *);
116void ieee80211_setbasicrates(struct ieee80211_rateset *,
117 enum ieee80211_phymode);
118void ieee80211_addbasicrates(struct ieee80211_rateset *,
119 enum ieee80211_phymode);
120
121/*
122 * Return the size of the 802.11 header for a management or data frame.
123 */
124static __inline int
125ieee80211_hdrsize(const void *data)
126{
127 const struct ieee80211_frame *wh = data;
128 int size = sizeof(struct ieee80211_frame);
129
130 /* NB: we don't handle control frames */
131 KASSERT((wh->i_fc[0]&IEEE80211_FC0_TYPE_MASK) != IEEE80211_FC0_TYPE_CTL,
132 ("%s: control frame", __func__));
133 if (IEEE80211_IS_DSTODS(wh))
134 size += IEEE80211_ADDR_LEN;
135 if (IEEE80211_QOS_HAS_SEQ(wh))
136 size += sizeof(uint16_t);
137 return size;
138}
139
140/*
141 * Like ieee80211_hdrsize, but handles any type of frame.
142 */
143static __inline int
144ieee80211_anyhdrsize(const void *data)
145{
146 const struct ieee80211_frame *wh = data;
147
148 if ((wh->i_fc[0]&IEEE80211_FC0_TYPE_MASK) == IEEE80211_FC0_TYPE_CTL) {
149 switch (wh->i_fc[0] & IEEE80211_FC0_SUBTYPE_MASK) {
150 case IEEE80211_FC0_SUBTYPE_CTS:
151 case IEEE80211_FC0_SUBTYPE_ACK:
152 return sizeof(struct ieee80211_frame_ack);
153 case IEEE80211_FC0_SUBTYPE_BAR:
154 return sizeof(struct ieee80211_frame_bar);
155 }
156 return sizeof(struct ieee80211_frame_min);
157 } else
158 return ieee80211_hdrsize(data);
159}
160
161/*
162 * Template for an in-kernel authenticator. Authenticators
163 * register with the protocol code and are typically loaded
164 * as separate modules as needed. One special authenticator
165 * is xauth; it intercepts requests so that protocols like
166 * WPA can be handled in user space.
167 */
168struct ieee80211_authenticator {
169 const char *ia_name; /* printable name */
170 int (*ia_attach)(struct ieee80211vap *);
171 void (*ia_detach)(struct ieee80211vap *);
172 void (*ia_node_join)(struct ieee80211_node *);
173 void (*ia_node_leave)(struct ieee80211_node *);
174};
175void ieee80211_authenticator_register(int type,
176 const struct ieee80211_authenticator *);
177void ieee80211_authenticator_unregister(int type);
178const struct ieee80211_authenticator *ieee80211_authenticator_get(int auth);
179
180struct ieee80211req;
181/*
182 * Template for an MAC ACL policy module. Such modules
183 * register with the protocol code and are passed the sender's
184 * address of each received auth frame for validation.
185 */
186struct ieee80211_aclator {
187 const char *iac_name; /* printable name */
188 int (*iac_attach)(struct ieee80211vap *);
189 void (*iac_detach)(struct ieee80211vap *);
190 int (*iac_check)(struct ieee80211vap *,
191 const uint8_t mac[IEEE80211_ADDR_LEN]);
192 int (*iac_add)(struct ieee80211vap *,
193 const uint8_t mac[IEEE80211_ADDR_LEN]);
194 int (*iac_remove)(struct ieee80211vap *,
195 const uint8_t mac[IEEE80211_ADDR_LEN]);
196 int (*iac_flush)(struct ieee80211vap *);
197 int (*iac_setpolicy)(struct ieee80211vap *, int);
198 int (*iac_getpolicy)(struct ieee80211vap *);
199 int (*iac_setioctl)(struct ieee80211vap *, struct ieee80211req *);
200 int (*iac_getioctl)(struct ieee80211vap *, struct ieee80211req *);
201};
202void ieee80211_aclator_register(const struct ieee80211_aclator *);
203void ieee80211_aclator_unregister(const struct ieee80211_aclator *);
204const struct ieee80211_aclator *ieee80211_aclator_get(const char *name);
205
206/* flags for ieee80211_fix_rate() */
207#define IEEE80211_F_DOSORT 0x00000001 /* sort rate list */
208#define IEEE80211_F_DOFRATE 0x00000002 /* use fixed legacy rate */
209#define IEEE80211_F_DONEGO 0x00000004 /* calc negotiated rate */
210#define IEEE80211_F_DODEL 0x00000008 /* delete ignore rate */
211#define IEEE80211_F_DOBRS 0x00000010 /* check basic rate set */
212#define IEEE80211_F_JOIN 0x00000020 /* sta joining our bss */
213#define IEEE80211_F_DOFMCS 0x00000040 /* use fixed HT rate */
214int ieee80211_fix_rate(struct ieee80211_node *,
215 struct ieee80211_rateset *, int);
216
217/*
218 * WME/WMM support.
219 */
220struct wmeParams {
221 uint8_t wmep_acm;
222 uint8_t wmep_aifsn;
223 uint8_t wmep_logcwmin; /* log2(cwmin) */
224 uint8_t wmep_logcwmax; /* log2(cwmax) */
225 uint8_t wmep_txopLimit;
226 uint8_t wmep_noackPolicy; /* 0 (ack), 1 (no ack) */
227};
228#define IEEE80211_TXOP_TO_US(_txop) ((_txop)<<5)
229#define IEEE80211_US_TO_TXOP(_us) ((_us)>>5)
230
231struct chanAccParams {
232 uint8_t cap_info; /* version of the current set */
233 struct wmeParams cap_wmeParams[WME_NUM_AC];
234};
235
236struct ieee80211_wme_state {
237 u_int wme_flags;
238#define WME_F_AGGRMODE 0x00000001 /* STATUS: WME agressive mode */
239 u_int wme_hipri_traffic; /* VI/VO frames in beacon interval */
240 u_int wme_hipri_switch_thresh;/* agressive mode switch thresh */
241 u_int wme_hipri_switch_hysteresis;/* agressive mode switch hysteresis */
242
243 struct wmeParams wme_params[4]; /* from assoc resp for each AC*/
244 struct chanAccParams wme_wmeChanParams; /* WME params applied to self */
245 struct chanAccParams wme_wmeBssChanParams;/* WME params bcast to stations */
246 struct chanAccParams wme_chanParams; /* params applied to self */
247 struct chanAccParams wme_bssChanParams; /* params bcast to stations */
248
249 int (*wme_update)(struct ieee80211com *);
250};
251
252void ieee80211_wme_initparams(struct ieee80211vap *);
253void ieee80211_wme_updateparams(struct ieee80211vap *);
254void ieee80211_wme_updateparams_locked(struct ieee80211vap *);
255
256/*
257 * Return the WME TID from a QoS frame. If no TID
258 * is present return the index for the "non-QoS" entry.
259 */
260static __inline uint8_t
261ieee80211_gettid(const struct ieee80211_frame *wh)
262{
263 uint8_t tid;
264
265 if (IEEE80211_QOS_HAS_SEQ(wh)) {
266 if (IEEE80211_IS_DSTODS(wh))
267 tid = ((const struct ieee80211_qosframe_addr4 *)wh)->
268 i_qos[0];
269 else
270 tid = ((const struct ieee80211_qosframe *)wh)->i_qos[0];
271 tid &= IEEE80211_QOS_TID;
272 } else
273 tid = IEEE80211_NONQOS_TID;
274 return tid;
275}
276
277void ieee80211_waitfor_parent(struct ieee80211com *);
278void ieee80211_start_locked(struct ieee80211vap *);
279void ieee80211_init(void *);
280void ieee80211_start_all(struct ieee80211com *);
281void ieee80211_stop_locked(struct ieee80211vap *);
282void ieee80211_stop(struct ieee80211vap *);
283void ieee80211_stop_all(struct ieee80211com *);
284void ieee80211_suspend_all(struct ieee80211com *);
285void ieee80211_resume_all(struct ieee80211com *);
286void ieee80211_dturbo_switch(struct ieee80211vap *, int newflags);
287void ieee80211_swbmiss(void *arg);
288void ieee80211_beacon_miss(struct ieee80211com *);
289int ieee80211_new_state(struct ieee80211vap *, enum ieee80211_state, int);
290void ieee80211_print_essid(const uint8_t *, int);
291void ieee80211_dump_pkt(struct ieee80211com *,
292 const uint8_t *, int, int, int);
293
294extern const char *ieee80211_opmode_name[];
295extern const char *ieee80211_state_name[IEEE80211_S_MAX];
296extern const char *ieee80211_wme_acnames[];
297
298/*
299 * Beacon frames constructed by ieee80211_beacon_alloc
300 * have the following structure filled in so drivers
301 * can update the frame later w/ minimal overhead.
302 */
303struct ieee80211_beacon_offsets {
304 uint8_t bo_flags[4]; /* update/state flags */
305 uint16_t *bo_caps; /* capabilities */
306 uint8_t *bo_cfp; /* start of CFParms element */
307 uint8_t *bo_tim; /* start of atim/dtim */
308 uint8_t *bo_wme; /* start of WME parameters */
309 uint8_t *bo_tdma; /* start of TDMA parameters */
310 uint8_t *bo_tim_trailer;/* start of fixed-size trailer */
311 uint16_t bo_tim_len; /* atim/dtim length in bytes */
312 uint16_t bo_tim_trailer_len;/* tim trailer length in bytes */
313 uint8_t *bo_erp; /* start of ERP element */
314 uint8_t *bo_htinfo; /* start of HT info element */
315 uint8_t *bo_ath; /* start of ATH parameters */
316 uint8_t *bo_appie; /* start of AppIE element */
317 uint16_t bo_appie_len; /* AppIE length in bytes */
|
319 uint8_t *bo_csa; /* start of CSA element */
320 uint8_t *bo_meshconf; /* start of MESHCONF element */
321 uint8_t *bo_spare[3];
322};
323struct mbuf *ieee80211_beacon_alloc(struct ieee80211_node *,
324 struct ieee80211_beacon_offsets *);
325
326/*
327 * Beacon frame updates are signaled through calls to iv_update_beacon
328 * with one of the IEEE80211_BEACON_* tokens defined below. For devices
329 * that construct beacon frames on the host this can trigger a rebuild
330 * or defer the processing. For devices that offload beacon frame
331 * handling this callback can be used to signal a rebuild. The bo_flags
332 * array in the ieee80211_beacon_offsets structure is intended to record
333 * deferred processing requirements; ieee80211_beacon_update uses the
334 * state to optimize work. Since this structure is owned by the driver
335 * and not visible to the 802.11 layer drivers must supply an iv_update_beacon
336 * callback that marks the flag bits and schedules (as necessary) an update.
337 */
338enum {
339 IEEE80211_BEACON_CAPS = 0, /* capabilities */
340 IEEE80211_BEACON_TIM = 1, /* DTIM/ATIM */
341 IEEE80211_BEACON_WME = 2,
342 IEEE80211_BEACON_ERP = 3, /* Extended Rate Phy */
343 IEEE80211_BEACON_HTINFO = 4, /* HT Information */
344 IEEE80211_BEACON_APPIE = 5, /* Application IE's */
345 IEEE80211_BEACON_CFP = 6, /* CFParms */
346 IEEE80211_BEACON_CSA = 7, /* Channel Switch Announcement */
347 IEEE80211_BEACON_TDMA = 9, /* TDMA Info */
348 IEEE80211_BEACON_ATH = 10, /* ATH parameters */
349 IEEE80211_BEACON_MESHCONF = 11, /* Mesh Configuration */
350};
351int ieee80211_beacon_update(struct ieee80211_node *,
352 struct ieee80211_beacon_offsets *, struct mbuf *, int mcast);
353
354void ieee80211_csa_startswitch(struct ieee80211com *,
355 struct ieee80211_channel *, int mode, int count);
356void ieee80211_csa_completeswitch(struct ieee80211com *);
357void ieee80211_csa_cancelswitch(struct ieee80211com *);
358void ieee80211_cac_completeswitch(struct ieee80211vap *);
359
360/*
361 * Notification methods called from the 802.11 state machine.
362 * Note that while these are defined here, their implementation
363 * is OS-specific.
364 */
365void ieee80211_notify_node_join(struct ieee80211_node *, int newassoc);
366void ieee80211_notify_node_leave(struct ieee80211_node *);
367void ieee80211_notify_scan_done(struct ieee80211vap *);
368void ieee80211_notify_wds_discover(struct ieee80211_node *);
369void ieee80211_notify_csa(struct ieee80211com *,
370 const struct ieee80211_channel *, int mode, int count);
371void ieee80211_notify_radar(struct ieee80211com *,
372 const struct ieee80211_channel *);
373enum ieee80211_notify_cac_event {
374 IEEE80211_NOTIFY_CAC_START = 0, /* CAC timer started */
375 IEEE80211_NOTIFY_CAC_STOP = 1, /* CAC intentionally stopped */
376 IEEE80211_NOTIFY_CAC_RADAR = 2, /* CAC stopped due to radar detectio */
377 IEEE80211_NOTIFY_CAC_EXPIRE = 3, /* CAC expired w/o radar */
378};
379void ieee80211_notify_cac(struct ieee80211com *,
380 const struct ieee80211_channel *,
381 enum ieee80211_notify_cac_event);
382void ieee80211_notify_node_deauth(struct ieee80211_node *);
383void ieee80211_notify_node_auth(struct ieee80211_node *);
384void ieee80211_notify_country(struct ieee80211vap *, const uint8_t [],
385 const uint8_t cc[2]);
386void ieee80211_notify_radio(struct ieee80211com *, int);
387#endif /* _NET80211_IEEE80211_PROTO_H_ */
| 319 uint8_t *bo_csa; /* start of CSA element */
320 uint8_t *bo_meshconf; /* start of MESHCONF element */
321 uint8_t *bo_spare[3];
322};
323struct mbuf *ieee80211_beacon_alloc(struct ieee80211_node *,
324 struct ieee80211_beacon_offsets *);
325
326/*
327 * Beacon frame updates are signaled through calls to iv_update_beacon
328 * with one of the IEEE80211_BEACON_* tokens defined below. For devices
329 * that construct beacon frames on the host this can trigger a rebuild
330 * or defer the processing. For devices that offload beacon frame
331 * handling this callback can be used to signal a rebuild. The bo_flags
332 * array in the ieee80211_beacon_offsets structure is intended to record
333 * deferred processing requirements; ieee80211_beacon_update uses the
334 * state to optimize work. Since this structure is owned by the driver
335 * and not visible to the 802.11 layer drivers must supply an iv_update_beacon
336 * callback that marks the flag bits and schedules (as necessary) an update.
337 */
338enum {
339 IEEE80211_BEACON_CAPS = 0, /* capabilities */
340 IEEE80211_BEACON_TIM = 1, /* DTIM/ATIM */
341 IEEE80211_BEACON_WME = 2,
342 IEEE80211_BEACON_ERP = 3, /* Extended Rate Phy */
343 IEEE80211_BEACON_HTINFO = 4, /* HT Information */
344 IEEE80211_BEACON_APPIE = 5, /* Application IE's */
345 IEEE80211_BEACON_CFP = 6, /* CFParms */
346 IEEE80211_BEACON_CSA = 7, /* Channel Switch Announcement */
347 IEEE80211_BEACON_TDMA = 9, /* TDMA Info */
348 IEEE80211_BEACON_ATH = 10, /* ATH parameters */
349 IEEE80211_BEACON_MESHCONF = 11, /* Mesh Configuration */
350};
351int ieee80211_beacon_update(struct ieee80211_node *,
352 struct ieee80211_beacon_offsets *, struct mbuf *, int mcast);
353
354void ieee80211_csa_startswitch(struct ieee80211com *,
355 struct ieee80211_channel *, int mode, int count);
356void ieee80211_csa_completeswitch(struct ieee80211com *);
357void ieee80211_csa_cancelswitch(struct ieee80211com *);
358void ieee80211_cac_completeswitch(struct ieee80211vap *);
359
360/*
361 * Notification methods called from the 802.11 state machine.
362 * Note that while these are defined here, their implementation
363 * is OS-specific.
364 */
365void ieee80211_notify_node_join(struct ieee80211_node *, int newassoc);
366void ieee80211_notify_node_leave(struct ieee80211_node *);
367void ieee80211_notify_scan_done(struct ieee80211vap *);
368void ieee80211_notify_wds_discover(struct ieee80211_node *);
369void ieee80211_notify_csa(struct ieee80211com *,
370 const struct ieee80211_channel *, int mode, int count);
371void ieee80211_notify_radar(struct ieee80211com *,
372 const struct ieee80211_channel *);
373enum ieee80211_notify_cac_event {
374 IEEE80211_NOTIFY_CAC_START = 0, /* CAC timer started */
375 IEEE80211_NOTIFY_CAC_STOP = 1, /* CAC intentionally stopped */
376 IEEE80211_NOTIFY_CAC_RADAR = 2, /* CAC stopped due to radar detectio */
377 IEEE80211_NOTIFY_CAC_EXPIRE = 3, /* CAC expired w/o radar */
378};
379void ieee80211_notify_cac(struct ieee80211com *,
380 const struct ieee80211_channel *,
381 enum ieee80211_notify_cac_event);
382void ieee80211_notify_node_deauth(struct ieee80211_node *);
383void ieee80211_notify_node_auth(struct ieee80211_node *);
384void ieee80211_notify_country(struct ieee80211vap *, const uint8_t [],
385 const uint8_t cc[2]);
386void ieee80211_notify_radio(struct ieee80211com *, int);
387#endif /* _NET80211_IEEE80211_PROTO_H_ */
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