1/*-
2 * Copyright (c) 2009 Sam Leffler, Errno Consulting
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
17 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
19 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
21 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#include <sys/cdefs.h>
| 1/*-
2 * Copyright (c) 2009 Sam Leffler, Errno Consulting
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
17 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
19 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
21 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#include <sys/cdefs.h>
|
28
29/*
30 * IEEE 802.11 radiotap support.
31 */
32#include "opt_wlan.h"
33
34#include <sys/param.h>
35#include <sys/systm.h>
36#include <sys/mbuf.h>
37#include <sys/malloc.h>
38#include <sys/endian.h>
39#include <sys/kernel.h>
40
41#include <sys/socket.h>
42
43#include <net/bpf.h>
44#include <net/if.h>
45#include <net/if_llc.h>
46#include <net/if_media.h>
47
48#include <net80211/ieee80211_var.h>
49
50static int radiotap_offset(struct ieee80211_radiotap_header *, int);
51
52void
53ieee80211_radiotap_attach(struct ieee80211com *ic,
54 struct ieee80211_radiotap_header *th, int tlen, uint32_t tx_radiotap,
55 struct ieee80211_radiotap_header *rh, int rlen, uint32_t rx_radiotap)
56{
57#define B(_v) (1<<(_v))
58 int off;
59
60 th->it_len = htole16(roundup2(tlen, sizeof(uint32_t)));
61 th->it_present = htole32(tx_radiotap);
62 ic->ic_th = th;
63 /* calculate offset to channel data */
64 off = -1;
65 if (tx_radiotap & B(IEEE80211_RADIOTAP_CHANNEL))
66 off = radiotap_offset(th, IEEE80211_RADIOTAP_CHANNEL);
67 else if (tx_radiotap & B(IEEE80211_RADIOTAP_XCHANNEL))
68 off = radiotap_offset(th, IEEE80211_RADIOTAP_XCHANNEL);
69 if (off == -1) {
70 if_printf(ic->ic_ifp, "%s: no tx channel, radiotap 0x%x",
71 __func__, tx_radiotap);
72 /* NB: we handle this case but data will have no chan spec */
73 } else
74 ic->ic_txchan = ((uint8_t *) th) + off;
75
76 rh->it_len = htole16(roundup2(rlen, sizeof(uint32_t)));
77 rh->it_present = htole32(rx_radiotap);
78 ic->ic_rh = rh;
79 /* calculate offset to channel data */
80 off = -1;
81 if (rx_radiotap & B(IEEE80211_RADIOTAP_CHANNEL))
82 off = radiotap_offset(rh, IEEE80211_RADIOTAP_CHANNEL);
83 else if (rx_radiotap & B(IEEE80211_RADIOTAP_XCHANNEL))
84 off = radiotap_offset(rh, IEEE80211_RADIOTAP_XCHANNEL);
85 if (off == -1) {
86 if_printf(ic->ic_ifp, "%s: no rx channel, radiotap 0x%x",
87 __func__, rx_radiotap);
88 /* NB: we handle this case but data will have no chan spec */
89 } else
90 ic->ic_rxchan = ((uint8_t *) rh) + off;
91#undef B
92}
93
94void
95ieee80211_radiotap_detach(struct ieee80211com *ic)
96{
97}
98
99void
100ieee80211_radiotap_vattach(struct ieee80211vap *vap)
101{
102 struct ieee80211com *ic = vap->iv_ic;
103 struct ieee80211_radiotap_header *th = ic->ic_th;
104
105 if (th != NULL && ic->ic_rh != NULL) {
106 /* radiotap DLT for raw 802.11 frames */
107 bpfattach2(vap->iv_ifp, DLT_IEEE802_11_RADIO,
108 sizeof(struct ieee80211_frame) + le16toh(th->it_len),
109 &vap->iv_rawbpf);
110 }
111}
112
113void
114ieee80211_radiotap_vdetach(struct ieee80211vap *vap)
115{
116 /* NB: bpfattach is called by ether_ifdetach and claims all taps */
117}
118
119static void
120set_channel(void *p, const struct ieee80211_channel *c)
121{
122 struct {
123 uint16_t freq;
124 uint16_t flags;
125 } *rc = p;
126
127 rc->freq = htole16(c->ic_freq);
128 rc->flags = htole16(c->ic_flags);
129}
130
131static void
132set_xchannel(void *p, const struct ieee80211_channel *c)
133{
134 struct {
135 uint32_t flags;
136 uint16_t freq;
137 uint8_t ieee;
138 uint8_t maxpow;
139 } *rc = p;
140
141 rc->flags = htole32(c->ic_flags);
142 rc->freq = htole16(c->ic_freq);
143 rc->ieee = c->ic_ieee;
144 rc->maxpow = c->ic_maxregpower;
145}
146
147/*
148 * Update radiotap state on channel change.
149 */
150void
151ieee80211_radiotap_chan_change(struct ieee80211com *ic)
152{
153 if (ic->ic_rxchan != NULL) {
154 struct ieee80211_radiotap_header *rh = ic->ic_rh;
155
156 if (rh->it_present & htole32(1<<IEEE80211_RADIOTAP_XCHANNEL))
157 set_xchannel(ic->ic_rxchan, ic->ic_curchan);
158 else if (rh->it_present & htole32(1<<IEEE80211_RADIOTAP_CHANNEL))
159 set_channel(ic->ic_rxchan, ic->ic_curchan);
160 }
161 if (ic->ic_txchan != NULL) {
162 struct ieee80211_radiotap_header *th = ic->ic_th;
163
164 if (th->it_present & htole32(1<<IEEE80211_RADIOTAP_XCHANNEL))
165 set_xchannel(ic->ic_txchan, ic->ic_curchan);
166 else if (th->it_present & htole32(1<<IEEE80211_RADIOTAP_CHANNEL))
167 set_channel(ic->ic_txchan, ic->ic_curchan);
168 }
169}
170
171/*
172 * Distribute radiotap data (+packet) to all monitor mode
173 * vaps with an active tap other than vap0.
174 */
175static void
176spam_vaps(struct ieee80211vap *vap0, struct mbuf *m,
177 struct ieee80211_radiotap_header *rh, int len)
178{
179 struct ieee80211com *ic = vap0->iv_ic;
180 struct ieee80211vap *vap;
181
182 TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) {
183 if (vap != vap0 &&
184 vap->iv_opmode == IEEE80211_M_MONITOR &&
185 (vap->iv_flags_ext & IEEE80211_FEXT_BPF) &&
186 vap->iv_state != IEEE80211_S_INIT)
187 bpf_mtap2(vap->iv_rawbpf, rh, len, m);
188 }
189}
190
191/*
192 * Dispatch radiotap data for transmitted packet.
193 */
194void
195ieee80211_radiotap_tx(struct ieee80211vap *vap0, struct mbuf *m)
196{
197 struct ieee80211com *ic = vap0->iv_ic;
198 struct ieee80211_radiotap_header *th = ic->ic_th;
199 int len;
200
201 KASSERT(th != NULL, ("no tx radiotap header"));
202 len = le16toh(th->it_len);
203
204 if (vap0->iv_flags_ext & IEEE80211_FEXT_BPF)
205 bpf_mtap2(vap0->iv_rawbpf, th, len, m);
206 /*
207 * Spam monitor mode vaps.
208 */
209 if (ic->ic_montaps != 0)
210 spam_vaps(vap0, m, th, len);
211}
212
213/*
214 * Dispatch radiotap data for received packet.
215 */
216void
217ieee80211_radiotap_rx(struct ieee80211vap *vap0, struct mbuf *m)
218{
219 struct ieee80211com *ic = vap0->iv_ic;
220 struct ieee80211_radiotap_header *rh = ic->ic_rh;
221 int len;
222
223 KASSERT(rh != NULL, ("no rx radiotap header"));
224 len = le16toh(rh->it_len);
225
226 if (vap0->iv_flags_ext & IEEE80211_FEXT_BPF)
227 bpf_mtap2(vap0->iv_rawbpf, rh, len, m);
228 /*
229 * Spam monitor mode vaps with unicast frames. Multicast
230 * frames are handled by passing through ieee80211_input_all
231 * which distributes copies to the monitor mode vaps.
232 */
233 if (ic->ic_montaps != 0 && (m->m_flags & M_BCAST) == 0)
234 spam_vaps(vap0, m, rh, len);
235}
236
237/*
238 * Dispatch radiotap data for a packet received outside the normal
239 * rx processing path; this is used, for example, to handle frames
240 * received with errors that would otherwise be dropped.
241 */
242void
243ieee80211_radiotap_rx_all(struct ieee80211com *ic, struct mbuf *m)
244{
245 struct ieee80211_radiotap_header *rh = ic->ic_rh;
246 int len = le16toh(rh->it_len);
247 struct ieee80211vap *vap;
248
249 /* XXX locking? */
250 TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) {
251 if (ieee80211_radiotap_active_vap(vap) &&
252 vap->iv_state != IEEE80211_S_INIT)
253 bpf_mtap2(vap->iv_rawbpf, rh, len, m);
254 }
255}
256
257/*
258 * Return the offset of the specified item in the radiotap
259 * header description. If the item is not present or is not
260 * known -1 is returned.
261 */
262static int
263radiotap_offset(struct ieee80211_radiotap_header *rh, int item)
264{
265 static const struct {
266 size_t align, width;
267 } items[] = {
268 [IEEE80211_RADIOTAP_TSFT] = {
269 .align = sizeof(uint64_t),
270 .width = sizeof(uint64_t),
271 },
272 [IEEE80211_RADIOTAP_FLAGS] = {
273 .align = sizeof(uint8_t),
274 .width = sizeof(uint8_t),
275 },
276 [IEEE80211_RADIOTAP_RATE] = {
277 .align = sizeof(uint8_t),
278 .width = sizeof(uint8_t),
279 },
280 [IEEE80211_RADIOTAP_CHANNEL] = {
281 .align = sizeof(uint16_t),
282 .width = 2*sizeof(uint16_t),
283 },
284 [IEEE80211_RADIOTAP_FHSS] = {
285 .align = sizeof(uint16_t),
286 .width = sizeof(uint16_t),
287 },
288 [IEEE80211_RADIOTAP_DBM_ANTSIGNAL] = {
289 .align = sizeof(uint8_t),
290 .width = sizeof(uint8_t),
291 },
292 [IEEE80211_RADIOTAP_DBM_ANTNOISE] = {
293 .align = sizeof(uint8_t),
294 .width = sizeof(uint8_t),
295 },
296 [IEEE80211_RADIOTAP_LOCK_QUALITY] = {
297 .align = sizeof(uint16_t),
298 .width = sizeof(uint16_t),
299 },
300 [IEEE80211_RADIOTAP_TX_ATTENUATION] = {
301 .align = sizeof(uint16_t),
302 .width = sizeof(uint16_t),
303 },
304 [IEEE80211_RADIOTAP_DB_TX_ATTENUATION] = {
305 .align = sizeof(uint16_t),
306 .width = sizeof(uint16_t),
307 },
308 [IEEE80211_RADIOTAP_DBM_TX_POWER] = {
309 .align = sizeof(uint8_t),
310 .width = sizeof(uint8_t),
311 },
312 [IEEE80211_RADIOTAP_ANTENNA] = {
313 .align = sizeof(uint8_t),
314 .width = sizeof(uint8_t),
315 },
316 [IEEE80211_RADIOTAP_DB_ANTSIGNAL] = {
317 .align = sizeof(uint8_t),
318 .width = sizeof(uint8_t),
319 },
320 [IEEE80211_RADIOTAP_DB_ANTNOISE] = {
321 .align = sizeof(uint8_t),
322 .width = sizeof(uint8_t),
323 },
324 [IEEE80211_RADIOTAP_XCHANNEL] = {
325 .align = sizeof(uint32_t),
326 .width = 2*sizeof(uint32_t),
327 },
| 28
29/*
30 * IEEE 802.11 radiotap support.
31 */
32#include "opt_wlan.h"
33
34#include <sys/param.h>
35#include <sys/systm.h>
36#include <sys/mbuf.h>
37#include <sys/malloc.h>
38#include <sys/endian.h>
39#include <sys/kernel.h>
40
41#include <sys/socket.h>
42
43#include <net/bpf.h>
44#include <net/if.h>
45#include <net/if_llc.h>
46#include <net/if_media.h>
47
48#include <net80211/ieee80211_var.h>
49
50static int radiotap_offset(struct ieee80211_radiotap_header *, int);
51
52void
53ieee80211_radiotap_attach(struct ieee80211com *ic,
54 struct ieee80211_radiotap_header *th, int tlen, uint32_t tx_radiotap,
55 struct ieee80211_radiotap_header *rh, int rlen, uint32_t rx_radiotap)
56{
57#define B(_v) (1<<(_v))
58 int off;
59
60 th->it_len = htole16(roundup2(tlen, sizeof(uint32_t)));
61 th->it_present = htole32(tx_radiotap);
62 ic->ic_th = th;
63 /* calculate offset to channel data */
64 off = -1;
65 if (tx_radiotap & B(IEEE80211_RADIOTAP_CHANNEL))
66 off = radiotap_offset(th, IEEE80211_RADIOTAP_CHANNEL);
67 else if (tx_radiotap & B(IEEE80211_RADIOTAP_XCHANNEL))
68 off = radiotap_offset(th, IEEE80211_RADIOTAP_XCHANNEL);
69 if (off == -1) {
70 if_printf(ic->ic_ifp, "%s: no tx channel, radiotap 0x%x",
71 __func__, tx_radiotap);
72 /* NB: we handle this case but data will have no chan spec */
73 } else
74 ic->ic_txchan = ((uint8_t *) th) + off;
75
76 rh->it_len = htole16(roundup2(rlen, sizeof(uint32_t)));
77 rh->it_present = htole32(rx_radiotap);
78 ic->ic_rh = rh;
79 /* calculate offset to channel data */
80 off = -1;
81 if (rx_radiotap & B(IEEE80211_RADIOTAP_CHANNEL))
82 off = radiotap_offset(rh, IEEE80211_RADIOTAP_CHANNEL);
83 else if (rx_radiotap & B(IEEE80211_RADIOTAP_XCHANNEL))
84 off = radiotap_offset(rh, IEEE80211_RADIOTAP_XCHANNEL);
85 if (off == -1) {
86 if_printf(ic->ic_ifp, "%s: no rx channel, radiotap 0x%x",
87 __func__, rx_radiotap);
88 /* NB: we handle this case but data will have no chan spec */
89 } else
90 ic->ic_rxchan = ((uint8_t *) rh) + off;
91#undef B
92}
93
94void
95ieee80211_radiotap_detach(struct ieee80211com *ic)
96{
97}
98
99void
100ieee80211_radiotap_vattach(struct ieee80211vap *vap)
101{
102 struct ieee80211com *ic = vap->iv_ic;
103 struct ieee80211_radiotap_header *th = ic->ic_th;
104
105 if (th != NULL && ic->ic_rh != NULL) {
106 /* radiotap DLT for raw 802.11 frames */
107 bpfattach2(vap->iv_ifp, DLT_IEEE802_11_RADIO,
108 sizeof(struct ieee80211_frame) + le16toh(th->it_len),
109 &vap->iv_rawbpf);
110 }
111}
112
113void
114ieee80211_radiotap_vdetach(struct ieee80211vap *vap)
115{
116 /* NB: bpfattach is called by ether_ifdetach and claims all taps */
117}
118
119static void
120set_channel(void *p, const struct ieee80211_channel *c)
121{
122 struct {
123 uint16_t freq;
124 uint16_t flags;
125 } *rc = p;
126
127 rc->freq = htole16(c->ic_freq);
128 rc->flags = htole16(c->ic_flags);
129}
130
131static void
132set_xchannel(void *p, const struct ieee80211_channel *c)
133{
134 struct {
135 uint32_t flags;
136 uint16_t freq;
137 uint8_t ieee;
138 uint8_t maxpow;
139 } *rc = p;
140
141 rc->flags = htole32(c->ic_flags);
142 rc->freq = htole16(c->ic_freq);
143 rc->ieee = c->ic_ieee;
144 rc->maxpow = c->ic_maxregpower;
145}
146
147/*
148 * Update radiotap state on channel change.
149 */
150void
151ieee80211_radiotap_chan_change(struct ieee80211com *ic)
152{
153 if (ic->ic_rxchan != NULL) {
154 struct ieee80211_radiotap_header *rh = ic->ic_rh;
155
156 if (rh->it_present & htole32(1<<IEEE80211_RADIOTAP_XCHANNEL))
157 set_xchannel(ic->ic_rxchan, ic->ic_curchan);
158 else if (rh->it_present & htole32(1<<IEEE80211_RADIOTAP_CHANNEL))
159 set_channel(ic->ic_rxchan, ic->ic_curchan);
160 }
161 if (ic->ic_txchan != NULL) {
162 struct ieee80211_radiotap_header *th = ic->ic_th;
163
164 if (th->it_present & htole32(1<<IEEE80211_RADIOTAP_XCHANNEL))
165 set_xchannel(ic->ic_txchan, ic->ic_curchan);
166 else if (th->it_present & htole32(1<<IEEE80211_RADIOTAP_CHANNEL))
167 set_channel(ic->ic_txchan, ic->ic_curchan);
168 }
169}
170
171/*
172 * Distribute radiotap data (+packet) to all monitor mode
173 * vaps with an active tap other than vap0.
174 */
175static void
176spam_vaps(struct ieee80211vap *vap0, struct mbuf *m,
177 struct ieee80211_radiotap_header *rh, int len)
178{
179 struct ieee80211com *ic = vap0->iv_ic;
180 struct ieee80211vap *vap;
181
182 TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) {
183 if (vap != vap0 &&
184 vap->iv_opmode == IEEE80211_M_MONITOR &&
185 (vap->iv_flags_ext & IEEE80211_FEXT_BPF) &&
186 vap->iv_state != IEEE80211_S_INIT)
187 bpf_mtap2(vap->iv_rawbpf, rh, len, m);
188 }
189}
190
191/*
192 * Dispatch radiotap data for transmitted packet.
193 */
194void
195ieee80211_radiotap_tx(struct ieee80211vap *vap0, struct mbuf *m)
196{
197 struct ieee80211com *ic = vap0->iv_ic;
198 struct ieee80211_radiotap_header *th = ic->ic_th;
199 int len;
200
201 KASSERT(th != NULL, ("no tx radiotap header"));
202 len = le16toh(th->it_len);
203
204 if (vap0->iv_flags_ext & IEEE80211_FEXT_BPF)
205 bpf_mtap2(vap0->iv_rawbpf, th, len, m);
206 /*
207 * Spam monitor mode vaps.
208 */
209 if (ic->ic_montaps != 0)
210 spam_vaps(vap0, m, th, len);
211}
212
213/*
214 * Dispatch radiotap data for received packet.
215 */
216void
217ieee80211_radiotap_rx(struct ieee80211vap *vap0, struct mbuf *m)
218{
219 struct ieee80211com *ic = vap0->iv_ic;
220 struct ieee80211_radiotap_header *rh = ic->ic_rh;
221 int len;
222
223 KASSERT(rh != NULL, ("no rx radiotap header"));
224 len = le16toh(rh->it_len);
225
226 if (vap0->iv_flags_ext & IEEE80211_FEXT_BPF)
227 bpf_mtap2(vap0->iv_rawbpf, rh, len, m);
228 /*
229 * Spam monitor mode vaps with unicast frames. Multicast
230 * frames are handled by passing through ieee80211_input_all
231 * which distributes copies to the monitor mode vaps.
232 */
233 if (ic->ic_montaps != 0 && (m->m_flags & M_BCAST) == 0)
234 spam_vaps(vap0, m, rh, len);
235}
236
237/*
238 * Dispatch radiotap data for a packet received outside the normal
239 * rx processing path; this is used, for example, to handle frames
240 * received with errors that would otherwise be dropped.
241 */
242void
243ieee80211_radiotap_rx_all(struct ieee80211com *ic, struct mbuf *m)
244{
245 struct ieee80211_radiotap_header *rh = ic->ic_rh;
246 int len = le16toh(rh->it_len);
247 struct ieee80211vap *vap;
248
249 /* XXX locking? */
250 TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) {
251 if (ieee80211_radiotap_active_vap(vap) &&
252 vap->iv_state != IEEE80211_S_INIT)
253 bpf_mtap2(vap->iv_rawbpf, rh, len, m);
254 }
255}
256
257/*
258 * Return the offset of the specified item in the radiotap
259 * header description. If the item is not present or is not
260 * known -1 is returned.
261 */
262static int
263radiotap_offset(struct ieee80211_radiotap_header *rh, int item)
264{
265 static const struct {
266 size_t align, width;
267 } items[] = {
268 [IEEE80211_RADIOTAP_TSFT] = {
269 .align = sizeof(uint64_t),
270 .width = sizeof(uint64_t),
271 },
272 [IEEE80211_RADIOTAP_FLAGS] = {
273 .align = sizeof(uint8_t),
274 .width = sizeof(uint8_t),
275 },
276 [IEEE80211_RADIOTAP_RATE] = {
277 .align = sizeof(uint8_t),
278 .width = sizeof(uint8_t),
279 },
280 [IEEE80211_RADIOTAP_CHANNEL] = {
281 .align = sizeof(uint16_t),
282 .width = 2*sizeof(uint16_t),
283 },
284 [IEEE80211_RADIOTAP_FHSS] = {
285 .align = sizeof(uint16_t),
286 .width = sizeof(uint16_t),
287 },
288 [IEEE80211_RADIOTAP_DBM_ANTSIGNAL] = {
289 .align = sizeof(uint8_t),
290 .width = sizeof(uint8_t),
291 },
292 [IEEE80211_RADIOTAP_DBM_ANTNOISE] = {
293 .align = sizeof(uint8_t),
294 .width = sizeof(uint8_t),
295 },
296 [IEEE80211_RADIOTAP_LOCK_QUALITY] = {
297 .align = sizeof(uint16_t),
298 .width = sizeof(uint16_t),
299 },
300 [IEEE80211_RADIOTAP_TX_ATTENUATION] = {
301 .align = sizeof(uint16_t),
302 .width = sizeof(uint16_t),
303 },
304 [IEEE80211_RADIOTAP_DB_TX_ATTENUATION] = {
305 .align = sizeof(uint16_t),
306 .width = sizeof(uint16_t),
307 },
308 [IEEE80211_RADIOTAP_DBM_TX_POWER] = {
309 .align = sizeof(uint8_t),
310 .width = sizeof(uint8_t),
311 },
312 [IEEE80211_RADIOTAP_ANTENNA] = {
313 .align = sizeof(uint8_t),
314 .width = sizeof(uint8_t),
315 },
316 [IEEE80211_RADIOTAP_DB_ANTSIGNAL] = {
317 .align = sizeof(uint8_t),
318 .width = sizeof(uint8_t),
319 },
320 [IEEE80211_RADIOTAP_DB_ANTNOISE] = {
321 .align = sizeof(uint8_t),
322 .width = sizeof(uint8_t),
323 },
324 [IEEE80211_RADIOTAP_XCHANNEL] = {
325 .align = sizeof(uint32_t),
326 .width = 2*sizeof(uint32_t),
327 },
|