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 */
26
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD$");
29
30 /*
31 * IEEE 802.11 ioctl support (FreeBSD-specific)
32 */
33
34 #include "opt_inet.h"
35 #include "opt_wlan.h"
36
37 #include <sys/endian.h>
38 #include <sys/param.h>
39 #include <sys/kernel.h>
40 #include <sys/priv.h>
41 #include <sys/socket.h>
42 #include <sys/sockio.h>
43 #include <sys/systm.h>
44
45 #include <net/if.h>
46 #include <net/if_var.h>
47 #include <net/if_dl.h>
48 #include <net/if_media.h>
49 #include <net/ethernet.h>
50
51 #ifdef INET
52 #include <netinet/in.h>
53 #include <netinet/if_ether.h>
54 #endif
55
56 #include <net80211/ieee80211_var.h>
57 #include <net80211/ieee80211_ioctl.h>
58 #include <net80211/ieee80211_regdomain.h>
59 #include <net80211/ieee80211_input.h>
60
61 #define IS_UP_AUTO(_vap) \
62 (IFNET_IS_UP_RUNNING((_vap)->iv_ifp) && \
63 (_vap)->iv_roaming == IEEE80211_ROAMING_AUTO)
64
65 static const uint8_t zerobssid[IEEE80211_ADDR_LEN];
66 static struct ieee80211_channel *findchannel(struct ieee80211com *,
67 int ieee, int mode);
68 static int ieee80211_scanreq(struct ieee80211vap *,
69 struct ieee80211_scan_req *);
70
71 static __noinline int
ieee80211_ioctl_getkey(struct ieee80211vap * vap,struct ieee80211req * ireq)72 ieee80211_ioctl_getkey(struct ieee80211vap *vap, struct ieee80211req *ireq)
73 {
74 struct ieee80211com *ic = vap->iv_ic;
75 struct ieee80211_node *ni;
76 struct ieee80211req_key ik;
77 struct ieee80211_key *wk;
78 const struct ieee80211_cipher *cip;
79 u_int kid;
80 int error;
81
82 if (ireq->i_len != sizeof(ik))
83 return EINVAL;
84 error = copyin(ireq->i_data, &ik, sizeof(ik));
85 if (error)
86 return error;
87 kid = ik.ik_keyix;
88 if (kid == IEEE80211_KEYIX_NONE) {
89 ni = ieee80211_find_vap_node(&ic->ic_sta, vap, ik.ik_macaddr);
90 if (ni == NULL)
91 return ENOENT;
92 wk = &ni->ni_ucastkey;
93 } else {
94 if (kid >= IEEE80211_WEP_NKID)
95 return EINVAL;
96 wk = &vap->iv_nw_keys[kid];
97 IEEE80211_ADDR_COPY(&ik.ik_macaddr, vap->iv_bss->ni_macaddr);
98 ni = NULL;
99 }
100 cip = wk->wk_cipher;
101 ik.ik_type = cip->ic_cipher;
102 ik.ik_keylen = wk->wk_keylen;
103 ik.ik_flags = wk->wk_flags & (IEEE80211_KEY_XMIT | IEEE80211_KEY_RECV);
104 if (wk->wk_keyix == vap->iv_def_txkey)
105 ik.ik_flags |= IEEE80211_KEY_DEFAULT;
106 if (priv_check(curthread, PRIV_NET80211_GETKEY) == 0) {
107 /* NB: only root can read key data */
108 ik.ik_keyrsc = wk->wk_keyrsc[IEEE80211_NONQOS_TID];
109 ik.ik_keytsc = wk->wk_keytsc;
110 memcpy(ik.ik_keydata, wk->wk_key, wk->wk_keylen);
111 if (cip->ic_cipher == IEEE80211_CIPHER_TKIP) {
112 memcpy(ik.ik_keydata+wk->wk_keylen,
113 wk->wk_key + IEEE80211_KEYBUF_SIZE,
114 IEEE80211_MICBUF_SIZE);
115 ik.ik_keylen += IEEE80211_MICBUF_SIZE;
116 }
117 } else {
118 ik.ik_keyrsc = 0;
119 ik.ik_keytsc = 0;
120 memset(ik.ik_keydata, 0, sizeof(ik.ik_keydata));
121 }
122 if (ni != NULL)
123 ieee80211_free_node(ni);
124 return copyout(&ik, ireq->i_data, sizeof(ik));
125 }
126
127 static __noinline int
ieee80211_ioctl_getchanlist(struct ieee80211vap * vap,struct ieee80211req * ireq)128 ieee80211_ioctl_getchanlist(struct ieee80211vap *vap, struct ieee80211req *ireq)
129 {
130 struct ieee80211com *ic = vap->iv_ic;
131
132 if (sizeof(ic->ic_chan_active) < ireq->i_len)
133 ireq->i_len = sizeof(ic->ic_chan_active);
134 return copyout(&ic->ic_chan_active, ireq->i_data, ireq->i_len);
135 }
136
137 static __noinline int
ieee80211_ioctl_getchaninfo(struct ieee80211vap * vap,struct ieee80211req * ireq)138 ieee80211_ioctl_getchaninfo(struct ieee80211vap *vap, struct ieee80211req *ireq)
139 {
140 struct ieee80211com *ic = vap->iv_ic;
141 uint32_t space;
142
143 space = __offsetof(struct ieee80211req_chaninfo,
144 ic_chans[ic->ic_nchans]);
145 if (space > ireq->i_len)
146 space = ireq->i_len;
147 /* XXX assumes compatible layout */
148 return copyout(&ic->ic_nchans, ireq->i_data, space);
149 }
150
151 static __noinline int
ieee80211_ioctl_getwpaie(struct ieee80211vap * vap,struct ieee80211req * ireq,int req)152 ieee80211_ioctl_getwpaie(struct ieee80211vap *vap,
153 struct ieee80211req *ireq, int req)
154 {
155 struct ieee80211_node *ni;
156 struct ieee80211req_wpaie2 wpaie;
157 int error;
158
159 if (ireq->i_len < IEEE80211_ADDR_LEN)
160 return EINVAL;
161 error = copyin(ireq->i_data, wpaie.wpa_macaddr, IEEE80211_ADDR_LEN);
162 if (error != 0)
163 return error;
164 ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap, wpaie.wpa_macaddr);
165 if (ni == NULL)
166 return ENOENT;
167 memset(wpaie.wpa_ie, 0, sizeof(wpaie.wpa_ie));
168 if (ni->ni_ies.wpa_ie != NULL) {
169 int ielen = ni->ni_ies.wpa_ie[1] + 2;
170 if (ielen > sizeof(wpaie.wpa_ie))
171 ielen = sizeof(wpaie.wpa_ie);
172 memcpy(wpaie.wpa_ie, ni->ni_ies.wpa_ie, ielen);
173 }
174 if (req == IEEE80211_IOC_WPAIE2) {
175 memset(wpaie.rsn_ie, 0, sizeof(wpaie.rsn_ie));
176 if (ni->ni_ies.rsn_ie != NULL) {
177 int ielen = ni->ni_ies.rsn_ie[1] + 2;
178 if (ielen > sizeof(wpaie.rsn_ie))
179 ielen = sizeof(wpaie.rsn_ie);
180 memcpy(wpaie.rsn_ie, ni->ni_ies.rsn_ie, ielen);
181 }
182 if (ireq->i_len > sizeof(struct ieee80211req_wpaie2))
183 ireq->i_len = sizeof(struct ieee80211req_wpaie2);
184 } else {
185 /* compatibility op, may overwrite wpa ie */
186 /* XXX check ic_flags? */
187 if (ni->ni_ies.rsn_ie != NULL) {
188 int ielen = ni->ni_ies.rsn_ie[1] + 2;
189 if (ielen > sizeof(wpaie.wpa_ie))
190 ielen = sizeof(wpaie.wpa_ie);
191 memcpy(wpaie.wpa_ie, ni->ni_ies.rsn_ie, ielen);
192 }
193 if (ireq->i_len > sizeof(struct ieee80211req_wpaie))
194 ireq->i_len = sizeof(struct ieee80211req_wpaie);
195 }
196 ieee80211_free_node(ni);
197 return copyout(&wpaie, ireq->i_data, ireq->i_len);
198 }
199
200 static __noinline int
ieee80211_ioctl_getstastats(struct ieee80211vap * vap,struct ieee80211req * ireq)201 ieee80211_ioctl_getstastats(struct ieee80211vap *vap, struct ieee80211req *ireq)
202 {
203 struct ieee80211_node *ni;
204 uint8_t macaddr[IEEE80211_ADDR_LEN];
205 const size_t off = __offsetof(struct ieee80211req_sta_stats, is_stats);
206 int error;
207
208 if (ireq->i_len < off)
209 return EINVAL;
210 error = copyin(ireq->i_data, macaddr, IEEE80211_ADDR_LEN);
211 if (error != 0)
212 return error;
213 ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap, macaddr);
214 if (ni == NULL)
215 return ENOENT;
216 if (ireq->i_len > sizeof(struct ieee80211req_sta_stats))
217 ireq->i_len = sizeof(struct ieee80211req_sta_stats);
218 /* NB: copy out only the statistics */
219 error = copyout(&ni->ni_stats, (uint8_t *) ireq->i_data + off,
220 ireq->i_len - off);
221 ieee80211_free_node(ni);
222 return error;
223 }
224
225 struct scanreq {
226 struct ieee80211req_scan_result *sr;
227 size_t space;
228 };
229
230 static size_t
scan_space(const struct ieee80211_scan_entry * se,int * ielen)231 scan_space(const struct ieee80211_scan_entry *se, int *ielen)
232 {
233 size_t len;
234
235 *ielen = se->se_ies.len;
236 /*
237 * NB: ie's can be no more than 255 bytes and the max 802.11
238 * packet is <3Kbytes so we are sure this doesn't overflow
239 * 16-bits; if this is a concern we can drop the ie's.
240 */
241 len = sizeof(struct ieee80211req_scan_result) + se->se_ssid[1] +
242 se->se_meshid[1] + *ielen;
243 return roundup(len, sizeof(uint32_t));
244 }
245
246 static void
get_scan_space(void * arg,const struct ieee80211_scan_entry * se)247 get_scan_space(void *arg, const struct ieee80211_scan_entry *se)
248 {
249 struct scanreq *req = arg;
250 int ielen;
251
252 req->space += scan_space(se, &ielen);
253 }
254
255 static __noinline void
get_scan_result(void * arg,const struct ieee80211_scan_entry * se)256 get_scan_result(void *arg, const struct ieee80211_scan_entry *se)
257 {
258 struct scanreq *req = arg;
259 struct ieee80211req_scan_result *sr;
260 int ielen, len, nr, nxr;
261 uint8_t *cp;
262
263 len = scan_space(se, &ielen);
264 if (len > req->space)
265 return;
266
267 sr = req->sr;
268 KASSERT(len <= 65535 && ielen <= 65535,
269 ("len %u ssid %u ie %u", len, se->se_ssid[1], ielen));
270 sr->isr_len = len;
271 sr->isr_ie_off = sizeof(struct ieee80211req_scan_result);
272 sr->isr_ie_len = ielen;
273 sr->isr_freq = se->se_chan->ic_freq;
274 sr->isr_flags = se->se_chan->ic_flags;
275 sr->isr_rssi = se->se_rssi;
276 sr->isr_noise = se->se_noise;
277 sr->isr_intval = se->se_intval;
278 sr->isr_capinfo = se->se_capinfo;
279 sr->isr_erp = se->se_erp;
280 IEEE80211_ADDR_COPY(sr->isr_bssid, se->se_bssid);
281 nr = min(se->se_rates[1], IEEE80211_RATE_MAXSIZE);
282 memcpy(sr->isr_rates, se->se_rates+2, nr);
283 nxr = min(se->se_xrates[1], IEEE80211_RATE_MAXSIZE - nr);
284 memcpy(sr->isr_rates+nr, se->se_xrates+2, nxr);
285 sr->isr_nrates = nr + nxr;
286
287 /* copy SSID */
288 sr->isr_ssid_len = se->se_ssid[1];
289 cp = ((uint8_t *)sr) + sr->isr_ie_off;
290 memcpy(cp, se->se_ssid+2, sr->isr_ssid_len);
291
292 /* copy mesh id */
293 cp += sr->isr_ssid_len;
294 sr->isr_meshid_len = se->se_meshid[1];
295 memcpy(cp, se->se_meshid+2, sr->isr_meshid_len);
296 cp += sr->isr_meshid_len;
297
298 if (ielen)
299 memcpy(cp, se->se_ies.data, ielen);
300
301 req->space -= len;
302 req->sr = (struct ieee80211req_scan_result *)(((uint8_t *)sr) + len);
303 }
304
305 static __noinline int
ieee80211_ioctl_getscanresults(struct ieee80211vap * vap,struct ieee80211req * ireq)306 ieee80211_ioctl_getscanresults(struct ieee80211vap *vap,
307 struct ieee80211req *ireq)
308 {
309 struct scanreq req;
310 int error;
311
312 if (ireq->i_len < sizeof(struct scanreq))
313 return EFAULT;
314
315 error = 0;
316 req.space = 0;
317 ieee80211_scan_iterate(vap, get_scan_space, &req);
318 if (req.space > ireq->i_len)
319 req.space = ireq->i_len;
320 if (req.space > 0) {
321 uint32_t space;
322 void *p;
323
324 space = req.space;
325 /* XXX M_WAITOK after driver lock released */
326 p = IEEE80211_MALLOC(space, M_TEMP,
327 IEEE80211_M_NOWAIT | IEEE80211_M_ZERO);
328 if (p == NULL)
329 return ENOMEM;
330 req.sr = p;
331 ieee80211_scan_iterate(vap, get_scan_result, &req);
332 ireq->i_len = space - req.space;
333 error = copyout(p, ireq->i_data, ireq->i_len);
334 IEEE80211_FREE(p, M_TEMP);
335 } else
336 ireq->i_len = 0;
337
338 return error;
339 }
340
341 struct stainforeq {
342 struct ieee80211vap *vap;
343 struct ieee80211req_sta_info *si;
344 size_t space;
345 };
346
347 static size_t
sta_space(const struct ieee80211_node * ni,size_t * ielen)348 sta_space(const struct ieee80211_node *ni, size_t *ielen)
349 {
350 *ielen = ni->ni_ies.len;
351 return roundup(sizeof(struct ieee80211req_sta_info) + *ielen,
352 sizeof(uint32_t));
353 }
354
355 static void
get_sta_space(void * arg,struct ieee80211_node * ni)356 get_sta_space(void *arg, struct ieee80211_node *ni)
357 {
358 struct stainforeq *req = arg;
359 size_t ielen;
360
361 if (req->vap != ni->ni_vap)
362 return;
363 if (ni->ni_vap->iv_opmode == IEEE80211_M_HOSTAP &&
364 ni->ni_associd == 0) /* only associated stations */
365 return;
366 req->space += sta_space(ni, &ielen);
367 }
368
369 static __noinline void
get_sta_info(void * arg,struct ieee80211_node * ni)370 get_sta_info(void *arg, struct ieee80211_node *ni)
371 {
372 struct stainforeq *req = arg;
373 struct ieee80211vap *vap = ni->ni_vap;
374 struct ieee80211req_sta_info *si;
375 size_t ielen, len;
376 uint8_t *cp;
377
378 if (req->vap != ni->ni_vap)
379 return;
380 if (vap->iv_opmode == IEEE80211_M_HOSTAP &&
381 ni->ni_associd == 0) /* only associated stations */
382 return;
383 if (ni->ni_chan == IEEE80211_CHAN_ANYC) /* XXX bogus entry */
384 return;
385 len = sta_space(ni, &ielen);
386 if (len > req->space)
387 return;
388 si = req->si;
389 si->isi_len = len;
390 si->isi_ie_off = sizeof(struct ieee80211req_sta_info);
391 si->isi_ie_len = ielen;
392 si->isi_freq = ni->ni_chan->ic_freq;
393 si->isi_flags = ni->ni_chan->ic_flags;
394 si->isi_state = ni->ni_flags;
395 si->isi_authmode = ni->ni_authmode;
396 vap->iv_ic->ic_node_getsignal(ni, &si->isi_rssi, &si->isi_noise);
397 vap->iv_ic->ic_node_getmimoinfo(ni, &si->isi_mimo);
398 si->isi_capinfo = ni->ni_capinfo;
399 si->isi_erp = ni->ni_erp;
400 IEEE80211_ADDR_COPY(si->isi_macaddr, ni->ni_macaddr);
401 si->isi_nrates = ni->ni_rates.rs_nrates;
402 if (si->isi_nrates > 15)
403 si->isi_nrates = 15;
404 memcpy(si->isi_rates, ni->ni_rates.rs_rates, si->isi_nrates);
405 si->isi_txrate = ni->ni_txrate;
406 if (si->isi_txrate & IEEE80211_RATE_MCS) {
407 const struct ieee80211_mcs_rates *mcs =
408 &ieee80211_htrates[ni->ni_txrate &~ IEEE80211_RATE_MCS];
409 if (IEEE80211_IS_CHAN_HT40(ni->ni_chan)) {
410 if (ni->ni_flags & IEEE80211_NODE_SGI40)
411 si->isi_txmbps = mcs->ht40_rate_800ns;
412 else
413 si->isi_txmbps = mcs->ht40_rate_400ns;
414 } else {
415 if (ni->ni_flags & IEEE80211_NODE_SGI20)
416 si->isi_txmbps = mcs->ht20_rate_800ns;
417 else
418 si->isi_txmbps = mcs->ht20_rate_400ns;
419 }
420 } else
421 si->isi_txmbps = si->isi_txrate;
422 si->isi_associd = ni->ni_associd;
423 si->isi_txpower = ni->ni_txpower;
424 si->isi_vlan = ni->ni_vlan;
425 if (ni->ni_flags & IEEE80211_NODE_QOS) {
426 memcpy(si->isi_txseqs, ni->ni_txseqs, sizeof(ni->ni_txseqs));
427 memcpy(si->isi_rxseqs, ni->ni_rxseqs, sizeof(ni->ni_rxseqs));
428 } else {
429 si->isi_txseqs[0] = ni->ni_txseqs[IEEE80211_NONQOS_TID];
430 si->isi_rxseqs[0] = ni->ni_rxseqs[IEEE80211_NONQOS_TID];
431 }
432 /* NB: leave all cases in case we relax ni_associd == 0 check */
433 if (ieee80211_node_is_authorized(ni))
434 si->isi_inact = vap->iv_inact_run;
435 else if (ni->ni_associd != 0 ||
436 (vap->iv_opmode == IEEE80211_M_WDS &&
437 (vap->iv_flags_ext & IEEE80211_FEXT_WDSLEGACY)))
438 si->isi_inact = vap->iv_inact_auth;
439 else
440 si->isi_inact = vap->iv_inact_init;
441 si->isi_inact = (si->isi_inact - ni->ni_inact) * IEEE80211_INACT_WAIT;
442 si->isi_localid = ni->ni_mllid;
443 si->isi_peerid = ni->ni_mlpid;
444 si->isi_peerstate = ni->ni_mlstate;
445
446 if (ielen) {
447 cp = ((uint8_t *)si) + si->isi_ie_off;
448 memcpy(cp, ni->ni_ies.data, ielen);
449 }
450
451 req->si = (struct ieee80211req_sta_info *)(((uint8_t *)si) + len);
452 req->space -= len;
453 }
454
455 static __noinline int
getstainfo_common(struct ieee80211vap * vap,struct ieee80211req * ireq,struct ieee80211_node * ni,size_t off)456 getstainfo_common(struct ieee80211vap *vap, struct ieee80211req *ireq,
457 struct ieee80211_node *ni, size_t off)
458 {
459 struct ieee80211com *ic = vap->iv_ic;
460 struct stainforeq req;
461 size_t space;
462 void *p;
463 int error;
464
465 error = 0;
466 req.space = 0;
467 req.vap = vap;
468 if (ni == NULL)
469 ieee80211_iterate_nodes(&ic->ic_sta, get_sta_space, &req);
470 else
471 get_sta_space(&req, ni);
472 if (req.space > ireq->i_len)
473 req.space = ireq->i_len;
474 if (req.space > 0) {
475 space = req.space;
476 /* XXX M_WAITOK after driver lock released */
477 p = IEEE80211_MALLOC(space, M_TEMP,
478 IEEE80211_M_NOWAIT | IEEE80211_M_ZERO);
479 if (p == NULL) {
480 error = ENOMEM;
481 goto bad;
482 }
483 req.si = p;
484 if (ni == NULL)
485 ieee80211_iterate_nodes(&ic->ic_sta, get_sta_info, &req);
486 else
487 get_sta_info(&req, ni);
488 ireq->i_len = space - req.space;
489 error = copyout(p, (uint8_t *) ireq->i_data+off, ireq->i_len);
490 IEEE80211_FREE(p, M_TEMP);
491 } else
492 ireq->i_len = 0;
493 bad:
494 if (ni != NULL)
495 ieee80211_free_node(ni);
496 return error;
497 }
498
499 static __noinline int
ieee80211_ioctl_getstainfo(struct ieee80211vap * vap,struct ieee80211req * ireq)500 ieee80211_ioctl_getstainfo(struct ieee80211vap *vap, struct ieee80211req *ireq)
501 {
502 uint8_t macaddr[IEEE80211_ADDR_LEN];
503 const size_t off = __offsetof(struct ieee80211req_sta_req, info);
504 struct ieee80211_node *ni;
505 int error;
506
507 if (ireq->i_len < sizeof(struct ieee80211req_sta_req))
508 return EFAULT;
509 error = copyin(ireq->i_data, macaddr, IEEE80211_ADDR_LEN);
510 if (error != 0)
511 return error;
512 if (IEEE80211_ADDR_EQ(macaddr, vap->iv_ifp->if_broadcastaddr)) {
513 ni = NULL;
514 } else {
515 ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap, macaddr);
516 if (ni == NULL)
517 return ENOENT;
518 }
519 return getstainfo_common(vap, ireq, ni, off);
520 }
521
522 static __noinline int
ieee80211_ioctl_getstatxpow(struct ieee80211vap * vap,struct ieee80211req * ireq)523 ieee80211_ioctl_getstatxpow(struct ieee80211vap *vap, struct ieee80211req *ireq)
524 {
525 struct ieee80211_node *ni;
526 struct ieee80211req_sta_txpow txpow;
527 int error;
528
529 if (ireq->i_len != sizeof(txpow))
530 return EINVAL;
531 error = copyin(ireq->i_data, &txpow, sizeof(txpow));
532 if (error != 0)
533 return error;
534 ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap, txpow.it_macaddr);
535 if (ni == NULL)
536 return ENOENT;
537 txpow.it_txpow = ni->ni_txpower;
538 error = copyout(&txpow, ireq->i_data, sizeof(txpow));
539 ieee80211_free_node(ni);
540 return error;
541 }
542
543 static __noinline int
ieee80211_ioctl_getwmeparam(struct ieee80211vap * vap,struct ieee80211req * ireq)544 ieee80211_ioctl_getwmeparam(struct ieee80211vap *vap, struct ieee80211req *ireq)
545 {
546 struct ieee80211com *ic = vap->iv_ic;
547 struct ieee80211_wme_state *wme = &ic->ic_wme;
548 struct wmeParams *wmep;
549 int ac;
550
551 if ((ic->ic_caps & IEEE80211_C_WME) == 0)
552 return EINVAL;
553
554 ac = (ireq->i_len & IEEE80211_WMEPARAM_VAL);
555 if (ac >= WME_NUM_AC)
556 ac = WME_AC_BE;
557 if (ireq->i_len & IEEE80211_WMEPARAM_BSS)
558 wmep = &wme->wme_wmeBssChanParams.cap_wmeParams[ac];
559 else
560 wmep = &wme->wme_wmeChanParams.cap_wmeParams[ac];
561 switch (ireq->i_type) {
562 case IEEE80211_IOC_WME_CWMIN: /* WME: CWmin */
563 ireq->i_val = wmep->wmep_logcwmin;
564 break;
565 case IEEE80211_IOC_WME_CWMAX: /* WME: CWmax */
566 ireq->i_val = wmep->wmep_logcwmax;
567 break;
568 case IEEE80211_IOC_WME_AIFS: /* WME: AIFS */
569 ireq->i_val = wmep->wmep_aifsn;
570 break;
571 case IEEE80211_IOC_WME_TXOPLIMIT: /* WME: txops limit */
572 ireq->i_val = wmep->wmep_txopLimit;
573 break;
574 case IEEE80211_IOC_WME_ACM: /* WME: ACM (bss only) */
575 wmep = &wme->wme_wmeBssChanParams.cap_wmeParams[ac];
576 ireq->i_val = wmep->wmep_acm;
577 break;
578 case IEEE80211_IOC_WME_ACKPOLICY: /* WME: ACK policy (!bss only)*/
579 wmep = &wme->wme_wmeChanParams.cap_wmeParams[ac];
580 ireq->i_val = !wmep->wmep_noackPolicy;
581 break;
582 }
583 return 0;
584 }
585
586 static __noinline int
ieee80211_ioctl_getmaccmd(struct ieee80211vap * vap,struct ieee80211req * ireq)587 ieee80211_ioctl_getmaccmd(struct ieee80211vap *vap, struct ieee80211req *ireq)
588 {
589 const struct ieee80211_aclator *acl = vap->iv_acl;
590
591 return (acl == NULL ? EINVAL : acl->iac_getioctl(vap, ireq));
592 }
593
594 static __noinline int
ieee80211_ioctl_getcurchan(struct ieee80211vap * vap,struct ieee80211req * ireq)595 ieee80211_ioctl_getcurchan(struct ieee80211vap *vap, struct ieee80211req *ireq)
596 {
597 struct ieee80211com *ic = vap->iv_ic;
598 struct ieee80211_channel *c;
599
600 if (ireq->i_len != sizeof(struct ieee80211_channel))
601 return EINVAL;
602 /*
603 * vap's may have different operating channels when HT is
604 * in use. When in RUN state report the vap-specific channel.
605 * Otherwise return curchan.
606 */
607 if (vap->iv_state == IEEE80211_S_RUN || vap->iv_state == IEEE80211_S_SLEEP)
608 c = vap->iv_bss->ni_chan;
609 else
610 c = ic->ic_curchan;
611 return copyout(c, ireq->i_data, sizeof(*c));
612 }
613
614 static int
getappie(const struct ieee80211_appie * aie,struct ieee80211req * ireq)615 getappie(const struct ieee80211_appie *aie, struct ieee80211req *ireq)
616 {
617 if (aie == NULL)
618 return EINVAL;
619 /* NB: truncate, caller can check length */
620 if (ireq->i_len > aie->ie_len)
621 ireq->i_len = aie->ie_len;
622 return copyout(aie->ie_data, ireq->i_data, ireq->i_len);
623 }
624
625 static int
ieee80211_ioctl_getappie(struct ieee80211vap * vap,struct ieee80211req * ireq)626 ieee80211_ioctl_getappie(struct ieee80211vap *vap, struct ieee80211req *ireq)
627 {
628 uint8_t fc0;
629
630 fc0 = ireq->i_val & 0xff;
631 if ((fc0 & IEEE80211_FC0_TYPE_MASK) != IEEE80211_FC0_TYPE_MGT)
632 return EINVAL;
633 /* NB: could check iv_opmode and reject but hardly worth the effort */
634 switch (fc0 & IEEE80211_FC0_SUBTYPE_MASK) {
635 case IEEE80211_FC0_SUBTYPE_BEACON:
636 return getappie(vap->iv_appie_beacon, ireq);
637 case IEEE80211_FC0_SUBTYPE_PROBE_RESP:
638 return getappie(vap->iv_appie_proberesp, ireq);
639 case IEEE80211_FC0_SUBTYPE_ASSOC_RESP:
640 return getappie(vap->iv_appie_assocresp, ireq);
641 case IEEE80211_FC0_SUBTYPE_PROBE_REQ:
642 return getappie(vap->iv_appie_probereq, ireq);
643 case IEEE80211_FC0_SUBTYPE_ASSOC_REQ:
644 return getappie(vap->iv_appie_assocreq, ireq);
645 case IEEE80211_FC0_SUBTYPE_BEACON|IEEE80211_FC0_SUBTYPE_PROBE_RESP:
646 return getappie(vap->iv_appie_wpa, ireq);
647 }
648 return EINVAL;
649 }
650
651 static __noinline int
ieee80211_ioctl_getregdomain(struct ieee80211vap * vap,const struct ieee80211req * ireq)652 ieee80211_ioctl_getregdomain(struct ieee80211vap *vap,
653 const struct ieee80211req *ireq)
654 {
655 struct ieee80211com *ic = vap->iv_ic;
656
657 if (ireq->i_len != sizeof(ic->ic_regdomain))
658 return EINVAL;
659 return copyout(&ic->ic_regdomain, ireq->i_data,
660 sizeof(ic->ic_regdomain));
661 }
662
663 static __noinline int
ieee80211_ioctl_getroam(struct ieee80211vap * vap,const struct ieee80211req * ireq)664 ieee80211_ioctl_getroam(struct ieee80211vap *vap,
665 const struct ieee80211req *ireq)
666 {
667 size_t len = ireq->i_len;
668 /* NB: accept short requests for backwards compat */
669 if (len > sizeof(vap->iv_roamparms))
670 len = sizeof(vap->iv_roamparms);
671 return copyout(vap->iv_roamparms, ireq->i_data, len);
672 }
673
674 static __noinline int
ieee80211_ioctl_gettxparams(struct ieee80211vap * vap,const struct ieee80211req * ireq)675 ieee80211_ioctl_gettxparams(struct ieee80211vap *vap,
676 const struct ieee80211req *ireq)
677 {
678 size_t len = ireq->i_len;
679 /* NB: accept short requests for backwards compat */
680 if (len > sizeof(vap->iv_txparms))
681 len = sizeof(vap->iv_txparms);
682 return copyout(vap->iv_txparms, ireq->i_data, len);
683 }
684
685 static __noinline int
ieee80211_ioctl_getdevcaps(struct ieee80211com * ic,const struct ieee80211req * ireq)686 ieee80211_ioctl_getdevcaps(struct ieee80211com *ic,
687 const struct ieee80211req *ireq)
688 {
689 struct ieee80211_devcaps_req *dc;
690 struct ieee80211req_chaninfo *ci;
691 int maxchans, error;
692
693 maxchans = 1 + ((ireq->i_len - sizeof(struct ieee80211_devcaps_req)) /
694 sizeof(struct ieee80211_channel));
695 /* NB: require 1 so we know ic_nchans is accessible */
696 if (maxchans < 1)
697 return EINVAL;
698 /* constrain max request size, 2K channels is ~24Kbytes */
699 if (maxchans > 2048)
700 maxchans = 2048;
701 dc = (struct ieee80211_devcaps_req *)
702 IEEE80211_MALLOC(IEEE80211_DEVCAPS_SIZE(maxchans), M_TEMP,
703 IEEE80211_M_NOWAIT | IEEE80211_M_ZERO);
704 if (dc == NULL)
705 return ENOMEM;
706 dc->dc_drivercaps = ic->ic_caps;
707 dc->dc_cryptocaps = ic->ic_cryptocaps;
708 dc->dc_htcaps = ic->ic_htcaps;
709 ci = &dc->dc_chaninfo;
710 ic->ic_getradiocaps(ic, maxchans, &ci->ic_nchans, ci->ic_chans);
711 KASSERT(ci->ic_nchans <= maxchans,
712 ("nchans %d maxchans %d", ci->ic_nchans, maxchans));
713 ieee80211_sort_channels(ci->ic_chans, ci->ic_nchans);
714 error = copyout(dc, ireq->i_data, IEEE80211_DEVCAPS_SPACE(dc));
715 IEEE80211_FREE(dc, M_TEMP);
716 return error;
717 }
718
719 static __noinline int
ieee80211_ioctl_getstavlan(struct ieee80211vap * vap,struct ieee80211req * ireq)720 ieee80211_ioctl_getstavlan(struct ieee80211vap *vap, struct ieee80211req *ireq)
721 {
722 struct ieee80211_node *ni;
723 struct ieee80211req_sta_vlan vlan;
724 int error;
725
726 if (ireq->i_len != sizeof(vlan))
727 return EINVAL;
728 error = copyin(ireq->i_data, &vlan, sizeof(vlan));
729 if (error != 0)
730 return error;
731 if (!IEEE80211_ADDR_EQ(vlan.sv_macaddr, zerobssid)) {
732 ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap,
733 vlan.sv_macaddr);
734 if (ni == NULL)
735 return ENOENT;
736 } else
737 ni = ieee80211_ref_node(vap->iv_bss);
738 vlan.sv_vlan = ni->ni_vlan;
739 error = copyout(&vlan, ireq->i_data, sizeof(vlan));
740 ieee80211_free_node(ni);
741 return error;
742 }
743
744 /*
745 * Dummy ioctl get handler so the linker set is defined.
746 */
747 static int
dummy_ioctl_get(struct ieee80211vap * vap,struct ieee80211req * ireq)748 dummy_ioctl_get(struct ieee80211vap *vap, struct ieee80211req *ireq)
749 {
750 return ENOSYS;
751 }
752 IEEE80211_IOCTL_GET(dummy, dummy_ioctl_get);
753
754 static int
ieee80211_ioctl_getdefault(struct ieee80211vap * vap,struct ieee80211req * ireq)755 ieee80211_ioctl_getdefault(struct ieee80211vap *vap, struct ieee80211req *ireq)
756 {
757 ieee80211_ioctl_getfunc * const *get;
758 int error;
759
760 SET_FOREACH(get, ieee80211_ioctl_getset) {
761 error = (*get)(vap, ireq);
762 if (error != ENOSYS)
763 return error;
764 }
765 return EINVAL;
766 }
767
768 /*
769 * When building the kernel with -O2 on the i386 architecture, gcc
770 * seems to want to inline this function into ieee80211_ioctl()
771 * (which is the only routine that calls it). When this happens,
772 * ieee80211_ioctl() ends up consuming an additional 2K of stack
773 * space. (Exactly why it needs so much is unclear.) The problem
774 * is that it's possible for ieee80211_ioctl() to invoke other
775 * routines (including driver init functions) which could then find
776 * themselves perilously close to exhausting the stack.
777 *
778 * To avoid this, we deliberately prevent gcc from inlining this
779 * routine. Another way to avoid this is to use less agressive
780 * optimization when compiling this file (i.e. -O instead of -O2)
781 * but special-casing the compilation of this one module in the
782 * build system would be awkward.
783 */
784 static __noinline int
ieee80211_ioctl_get80211(struct ieee80211vap * vap,u_long cmd,struct ieee80211req * ireq)785 ieee80211_ioctl_get80211(struct ieee80211vap *vap, u_long cmd,
786 struct ieee80211req *ireq)
787 {
788 #define MS(_v, _f) (((_v) & _f) >> _f##_S)
789 struct ieee80211com *ic = vap->iv_ic;
790 u_int kid, len;
791 uint8_t tmpkey[IEEE80211_KEYBUF_SIZE];
792 char tmpssid[IEEE80211_NWID_LEN];
793 int error = 0;
794
795 switch (ireq->i_type) {
796 case IEEE80211_IOC_SSID:
797 switch (vap->iv_state) {
798 case IEEE80211_S_INIT:
799 case IEEE80211_S_SCAN:
800 ireq->i_len = vap->iv_des_ssid[0].len;
801 memcpy(tmpssid, vap->iv_des_ssid[0].ssid, ireq->i_len);
802 break;
803 default:
804 ireq->i_len = vap->iv_bss->ni_esslen;
805 memcpy(tmpssid, vap->iv_bss->ni_essid, ireq->i_len);
806 break;
807 }
808 error = copyout(tmpssid, ireq->i_data, ireq->i_len);
809 break;
810 case IEEE80211_IOC_NUMSSIDS:
811 ireq->i_val = 1;
812 break;
813 case IEEE80211_IOC_WEP:
814 if ((vap->iv_flags & IEEE80211_F_PRIVACY) == 0)
815 ireq->i_val = IEEE80211_WEP_OFF;
816 else if (vap->iv_flags & IEEE80211_F_DROPUNENC)
817 ireq->i_val = IEEE80211_WEP_ON;
818 else
819 ireq->i_val = IEEE80211_WEP_MIXED;
820 break;
821 case IEEE80211_IOC_WEPKEY:
822 kid = (u_int) ireq->i_val;
823 if (kid >= IEEE80211_WEP_NKID)
824 return EINVAL;
825 len = (u_int) vap->iv_nw_keys[kid].wk_keylen;
826 /* NB: only root can read WEP keys */
827 if (priv_check(curthread, PRIV_NET80211_GETKEY) == 0) {
828 bcopy(vap->iv_nw_keys[kid].wk_key, tmpkey, len);
829 } else {
830 bzero(tmpkey, len);
831 }
832 ireq->i_len = len;
833 error = copyout(tmpkey, ireq->i_data, len);
834 break;
835 case IEEE80211_IOC_NUMWEPKEYS:
836 ireq->i_val = IEEE80211_WEP_NKID;
837 break;
838 case IEEE80211_IOC_WEPTXKEY:
839 ireq->i_val = vap->iv_def_txkey;
840 break;
841 case IEEE80211_IOC_AUTHMODE:
842 if (vap->iv_flags & IEEE80211_F_WPA)
843 ireq->i_val = IEEE80211_AUTH_WPA;
844 else
845 ireq->i_val = vap->iv_bss->ni_authmode;
846 break;
847 case IEEE80211_IOC_CHANNEL:
848 ireq->i_val = ieee80211_chan2ieee(ic, ic->ic_curchan);
849 break;
850 case IEEE80211_IOC_POWERSAVE:
851 if (vap->iv_flags & IEEE80211_F_PMGTON)
852 ireq->i_val = IEEE80211_POWERSAVE_ON;
853 else
854 ireq->i_val = IEEE80211_POWERSAVE_OFF;
855 break;
856 case IEEE80211_IOC_POWERSAVESLEEP:
857 ireq->i_val = ic->ic_lintval;
858 break;
859 case IEEE80211_IOC_RTSTHRESHOLD:
860 ireq->i_val = vap->iv_rtsthreshold;
861 break;
862 case IEEE80211_IOC_PROTMODE:
863 ireq->i_val = ic->ic_protmode;
864 break;
865 case IEEE80211_IOC_TXPOWER:
866 /*
867 * Tx power limit is the min of max regulatory
868 * power, any user-set limit, and the max the
869 * radio can do.
870 */
871 ireq->i_val = 2*ic->ic_curchan->ic_maxregpower;
872 if (ireq->i_val > ic->ic_txpowlimit)
873 ireq->i_val = ic->ic_txpowlimit;
874 if (ireq->i_val > ic->ic_curchan->ic_maxpower)
875 ireq->i_val = ic->ic_curchan->ic_maxpower;
876 break;
877 case IEEE80211_IOC_WPA:
878 switch (vap->iv_flags & IEEE80211_F_WPA) {
879 case IEEE80211_F_WPA1:
880 ireq->i_val = 1;
881 break;
882 case IEEE80211_F_WPA2:
883 ireq->i_val = 2;
884 break;
885 case IEEE80211_F_WPA1 | IEEE80211_F_WPA2:
886 ireq->i_val = 3;
887 break;
888 default:
889 ireq->i_val = 0;
890 break;
891 }
892 break;
893 case IEEE80211_IOC_CHANLIST:
894 error = ieee80211_ioctl_getchanlist(vap, ireq);
895 break;
896 case IEEE80211_IOC_ROAMING:
897 ireq->i_val = vap->iv_roaming;
898 break;
899 case IEEE80211_IOC_PRIVACY:
900 ireq->i_val = (vap->iv_flags & IEEE80211_F_PRIVACY) != 0;
901 break;
902 case IEEE80211_IOC_DROPUNENCRYPTED:
903 ireq->i_val = (vap->iv_flags & IEEE80211_F_DROPUNENC) != 0;
904 break;
905 case IEEE80211_IOC_COUNTERMEASURES:
906 ireq->i_val = (vap->iv_flags & IEEE80211_F_COUNTERM) != 0;
907 break;
908 case IEEE80211_IOC_WME:
909 ireq->i_val = (vap->iv_flags & IEEE80211_F_WME) != 0;
910 break;
911 case IEEE80211_IOC_HIDESSID:
912 ireq->i_val = (vap->iv_flags & IEEE80211_F_HIDESSID) != 0;
913 break;
914 case IEEE80211_IOC_APBRIDGE:
915 ireq->i_val = (vap->iv_flags & IEEE80211_F_NOBRIDGE) == 0;
916 break;
917 case IEEE80211_IOC_WPAKEY:
918 error = ieee80211_ioctl_getkey(vap, ireq);
919 break;
920 case IEEE80211_IOC_CHANINFO:
921 error = ieee80211_ioctl_getchaninfo(vap, ireq);
922 break;
923 case IEEE80211_IOC_BSSID:
924 if (ireq->i_len != IEEE80211_ADDR_LEN)
925 return EINVAL;
926 if (vap->iv_state == IEEE80211_S_RUN || vap->iv_state == IEEE80211_S_SLEEP) {
927 error = copyout(vap->iv_opmode == IEEE80211_M_WDS ?
928 vap->iv_bss->ni_macaddr : vap->iv_bss->ni_bssid,
929 ireq->i_data, ireq->i_len);
930 } else
931 error = copyout(vap->iv_des_bssid, ireq->i_data,
932 ireq->i_len);
933 break;
934 case IEEE80211_IOC_WPAIE:
935 error = ieee80211_ioctl_getwpaie(vap, ireq, ireq->i_type);
936 break;
937 case IEEE80211_IOC_WPAIE2:
938 error = ieee80211_ioctl_getwpaie(vap, ireq, ireq->i_type);
939 break;
940 case IEEE80211_IOC_SCAN_RESULTS:
941 error = ieee80211_ioctl_getscanresults(vap, ireq);
942 break;
943 case IEEE80211_IOC_STA_STATS:
944 error = ieee80211_ioctl_getstastats(vap, ireq);
945 break;
946 case IEEE80211_IOC_TXPOWMAX:
947 ireq->i_val = vap->iv_bss->ni_txpower;
948 break;
949 case IEEE80211_IOC_STA_TXPOW:
950 error = ieee80211_ioctl_getstatxpow(vap, ireq);
951 break;
952 case IEEE80211_IOC_STA_INFO:
953 error = ieee80211_ioctl_getstainfo(vap, ireq);
954 break;
955 case IEEE80211_IOC_WME_CWMIN: /* WME: CWmin */
956 case IEEE80211_IOC_WME_CWMAX: /* WME: CWmax */
957 case IEEE80211_IOC_WME_AIFS: /* WME: AIFS */
958 case IEEE80211_IOC_WME_TXOPLIMIT: /* WME: txops limit */
959 case IEEE80211_IOC_WME_ACM: /* WME: ACM (bss only) */
960 case IEEE80211_IOC_WME_ACKPOLICY: /* WME: ACK policy (!bss only) */
961 error = ieee80211_ioctl_getwmeparam(vap, ireq);
962 break;
963 case IEEE80211_IOC_DTIM_PERIOD:
964 ireq->i_val = vap->iv_dtim_period;
965 break;
966 case IEEE80211_IOC_BEACON_INTERVAL:
967 /* NB: get from ic_bss for station mode */
968 ireq->i_val = vap->iv_bss->ni_intval;
969 break;
970 case IEEE80211_IOC_PUREG:
971 ireq->i_val = (vap->iv_flags & IEEE80211_F_PUREG) != 0;
972 break;
973 case IEEE80211_IOC_QUIET:
974 ireq->i_val = vap->iv_quiet;
975 break;
976 case IEEE80211_IOC_QUIET_COUNT:
977 ireq->i_val = vap->iv_quiet_count;
978 break;
979 case IEEE80211_IOC_QUIET_PERIOD:
980 ireq->i_val = vap->iv_quiet_period;
981 break;
982 case IEEE80211_IOC_QUIET_DUR:
983 ireq->i_val = vap->iv_quiet_duration;
984 break;
985 case IEEE80211_IOC_QUIET_OFFSET:
986 ireq->i_val = vap->iv_quiet_offset;
987 break;
988 case IEEE80211_IOC_BGSCAN:
989 ireq->i_val = (vap->iv_flags & IEEE80211_F_BGSCAN) != 0;
990 break;
991 case IEEE80211_IOC_BGSCAN_IDLE:
992 ireq->i_val = vap->iv_bgscanidle*hz/1000; /* ms */
993 break;
994 case IEEE80211_IOC_BGSCAN_INTERVAL:
995 ireq->i_val = vap->iv_bgscanintvl/hz; /* seconds */
996 break;
997 case IEEE80211_IOC_SCANVALID:
998 ireq->i_val = vap->iv_scanvalid/hz; /* seconds */
999 break;
1000 case IEEE80211_IOC_FRAGTHRESHOLD:
1001 ireq->i_val = vap->iv_fragthreshold;
1002 break;
1003 case IEEE80211_IOC_MACCMD:
1004 error = ieee80211_ioctl_getmaccmd(vap, ireq);
1005 break;
1006 case IEEE80211_IOC_BURST:
1007 ireq->i_val = (vap->iv_flags & IEEE80211_F_BURST) != 0;
1008 break;
1009 case IEEE80211_IOC_BMISSTHRESHOLD:
1010 ireq->i_val = vap->iv_bmissthreshold;
1011 break;
1012 case IEEE80211_IOC_CURCHAN:
1013 error = ieee80211_ioctl_getcurchan(vap, ireq);
1014 break;
1015 case IEEE80211_IOC_SHORTGI:
1016 ireq->i_val = 0;
1017 if (vap->iv_flags_ht & IEEE80211_FHT_SHORTGI20)
1018 ireq->i_val |= IEEE80211_HTCAP_SHORTGI20;
1019 if (vap->iv_flags_ht & IEEE80211_FHT_SHORTGI40)
1020 ireq->i_val |= IEEE80211_HTCAP_SHORTGI40;
1021 break;
1022 case IEEE80211_IOC_AMPDU:
1023 ireq->i_val = 0;
1024 if (vap->iv_flags_ht & IEEE80211_FHT_AMPDU_TX)
1025 ireq->i_val |= 1;
1026 if (vap->iv_flags_ht & IEEE80211_FHT_AMPDU_RX)
1027 ireq->i_val |= 2;
1028 break;
1029 case IEEE80211_IOC_AMPDU_LIMIT:
1030 if (vap->iv_opmode == IEEE80211_M_HOSTAP)
1031 ireq->i_val = vap->iv_ampdu_rxmax;
1032 else if (vap->iv_state == IEEE80211_S_RUN || vap->iv_state == IEEE80211_S_SLEEP)
1033 ireq->i_val = MS(vap->iv_bss->ni_htparam,
1034 IEEE80211_HTCAP_MAXRXAMPDU);
1035 else
1036 ireq->i_val = vap->iv_ampdu_limit;
1037 break;
1038 case IEEE80211_IOC_AMPDU_DENSITY:
1039 if (vap->iv_opmode == IEEE80211_M_STA &&
1040 (vap->iv_state == IEEE80211_S_RUN || vap->iv_state == IEEE80211_S_SLEEP))
1041 ireq->i_val = MS(vap->iv_bss->ni_htparam,
1042 IEEE80211_HTCAP_MPDUDENSITY);
1043 else
1044 ireq->i_val = vap->iv_ampdu_density;
1045 break;
1046 case IEEE80211_IOC_AMSDU:
1047 ireq->i_val = 0;
1048 if (vap->iv_flags_ht & IEEE80211_FHT_AMSDU_TX)
1049 ireq->i_val |= 1;
1050 if (vap->iv_flags_ht & IEEE80211_FHT_AMSDU_RX)
1051 ireq->i_val |= 2;
1052 break;
1053 case IEEE80211_IOC_AMSDU_LIMIT:
1054 ireq->i_val = vap->iv_amsdu_limit; /* XXX truncation? */
1055 break;
1056 case IEEE80211_IOC_PUREN:
1057 ireq->i_val = (vap->iv_flags_ht & IEEE80211_FHT_PUREN) != 0;
1058 break;
1059 case IEEE80211_IOC_DOTH:
1060 ireq->i_val = (vap->iv_flags & IEEE80211_F_DOTH) != 0;
1061 break;
1062 case IEEE80211_IOC_REGDOMAIN:
1063 error = ieee80211_ioctl_getregdomain(vap, ireq);
1064 break;
1065 case IEEE80211_IOC_ROAM:
1066 error = ieee80211_ioctl_getroam(vap, ireq);
1067 break;
1068 case IEEE80211_IOC_TXPARAMS:
1069 error = ieee80211_ioctl_gettxparams(vap, ireq);
1070 break;
1071 case IEEE80211_IOC_HTCOMPAT:
1072 ireq->i_val = (vap->iv_flags_ht & IEEE80211_FHT_HTCOMPAT) != 0;
1073 break;
1074 case IEEE80211_IOC_DWDS:
1075 ireq->i_val = (vap->iv_flags & IEEE80211_F_DWDS) != 0;
1076 break;
1077 case IEEE80211_IOC_INACTIVITY:
1078 ireq->i_val = (vap->iv_flags_ext & IEEE80211_FEXT_INACT) != 0;
1079 break;
1080 case IEEE80211_IOC_APPIE:
1081 error = ieee80211_ioctl_getappie(vap, ireq);
1082 break;
1083 case IEEE80211_IOC_WPS:
1084 ireq->i_val = (vap->iv_flags_ext & IEEE80211_FEXT_WPS) != 0;
1085 break;
1086 case IEEE80211_IOC_TSN:
1087 ireq->i_val = (vap->iv_flags_ext & IEEE80211_FEXT_TSN) != 0;
1088 break;
1089 case IEEE80211_IOC_DFS:
1090 ireq->i_val = (vap->iv_flags_ext & IEEE80211_FEXT_DFS) != 0;
1091 break;
1092 case IEEE80211_IOC_DOTD:
1093 ireq->i_val = (vap->iv_flags_ext & IEEE80211_FEXT_DOTD) != 0;
1094 break;
1095 case IEEE80211_IOC_DEVCAPS:
1096 error = ieee80211_ioctl_getdevcaps(ic, ireq);
1097 break;
1098 case IEEE80211_IOC_HTPROTMODE:
1099 ireq->i_val = ic->ic_htprotmode;
1100 break;
1101 case IEEE80211_IOC_HTCONF:
1102 if (vap->iv_flags_ht & IEEE80211_FHT_HT) {
1103 ireq->i_val = 1;
1104 if (vap->iv_flags_ht & IEEE80211_FHT_USEHT40)
1105 ireq->i_val |= 2;
1106 } else
1107 ireq->i_val = 0;
1108 break;
1109 case IEEE80211_IOC_STA_VLAN:
1110 error = ieee80211_ioctl_getstavlan(vap, ireq);
1111 break;
1112 case IEEE80211_IOC_SMPS:
1113 if (vap->iv_opmode == IEEE80211_M_STA &&
1114 (vap->iv_state == IEEE80211_S_RUN || vap->iv_state == IEEE80211_S_SLEEP)) {
1115 if (vap->iv_bss->ni_flags & IEEE80211_NODE_MIMO_RTS)
1116 ireq->i_val = IEEE80211_HTCAP_SMPS_DYNAMIC;
1117 else if (vap->iv_bss->ni_flags & IEEE80211_NODE_MIMO_PS)
1118 ireq->i_val = IEEE80211_HTCAP_SMPS_ENA;
1119 else
1120 ireq->i_val = IEEE80211_HTCAP_SMPS_OFF;
1121 } else
1122 ireq->i_val = vap->iv_htcaps & IEEE80211_HTCAP_SMPS;
1123 break;
1124 case IEEE80211_IOC_RIFS:
1125 if (vap->iv_opmode == IEEE80211_M_STA &&
1126 (vap->iv_state == IEEE80211_S_RUN || vap->iv_state == IEEE80211_S_SLEEP))
1127 ireq->i_val =
1128 (vap->iv_bss->ni_flags & IEEE80211_NODE_RIFS) != 0;
1129 else
1130 ireq->i_val =
1131 (vap->iv_flags_ht & IEEE80211_FHT_RIFS) != 0;
1132 break;
1133 default:
1134 error = ieee80211_ioctl_getdefault(vap, ireq);
1135 break;
1136 }
1137 return error;
1138 #undef MS
1139 }
1140
1141 static __noinline int
ieee80211_ioctl_setkey(struct ieee80211vap * vap,struct ieee80211req * ireq)1142 ieee80211_ioctl_setkey(struct ieee80211vap *vap, struct ieee80211req *ireq)
1143 {
1144 struct ieee80211req_key ik;
1145 struct ieee80211_node *ni;
1146 struct ieee80211_key *wk;
1147 uint16_t kid;
1148 int error, i;
1149
1150 if (ireq->i_len != sizeof(ik))
1151 return EINVAL;
1152 error = copyin(ireq->i_data, &ik, sizeof(ik));
1153 if (error)
1154 return error;
1155 /* NB: cipher support is verified by ieee80211_crypt_newkey */
1156 /* NB: this also checks ik->ik_keylen > sizeof(wk->wk_key) */
1157 if (ik.ik_keylen > sizeof(ik.ik_keydata))
1158 return E2BIG;
1159 kid = ik.ik_keyix;
1160 if (kid == IEEE80211_KEYIX_NONE) {
1161 /* XXX unicast keys currently must be tx/rx */
1162 if (ik.ik_flags != (IEEE80211_KEY_XMIT | IEEE80211_KEY_RECV))
1163 return EINVAL;
1164 if (vap->iv_opmode == IEEE80211_M_STA) {
1165 ni = ieee80211_ref_node(vap->iv_bss);
1166 if (!IEEE80211_ADDR_EQ(ik.ik_macaddr, ni->ni_bssid)) {
1167 ieee80211_free_node(ni);
1168 return EADDRNOTAVAIL;
1169 }
1170 } else {
1171 ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap,
1172 ik.ik_macaddr);
1173 if (ni == NULL)
1174 return ENOENT;
1175 }
1176 wk = &ni->ni_ucastkey;
1177 } else {
1178 if (kid >= IEEE80211_WEP_NKID)
1179 return EINVAL;
1180 wk = &vap->iv_nw_keys[kid];
1181 /*
1182 * Global slots start off w/o any assigned key index.
1183 * Force one here for consistency with IEEE80211_IOC_WEPKEY.
1184 */
1185 if (wk->wk_keyix == IEEE80211_KEYIX_NONE)
1186 wk->wk_keyix = kid;
1187 ni = NULL;
1188 }
1189 error = 0;
1190 ieee80211_key_update_begin(vap);
1191 if (ieee80211_crypto_newkey(vap, ik.ik_type, ik.ik_flags, wk)) {
1192 wk->wk_keylen = ik.ik_keylen;
1193 /* NB: MIC presence is implied by cipher type */
1194 if (wk->wk_keylen > IEEE80211_KEYBUF_SIZE)
1195 wk->wk_keylen = IEEE80211_KEYBUF_SIZE;
1196 for (i = 0; i < IEEE80211_TID_SIZE; i++)
1197 wk->wk_keyrsc[i] = ik.ik_keyrsc;
1198 wk->wk_keytsc = 0; /* new key, reset */
1199 memset(wk->wk_key, 0, sizeof(wk->wk_key));
1200 memcpy(wk->wk_key, ik.ik_keydata, ik.ik_keylen);
1201 IEEE80211_ADDR_COPY(wk->wk_macaddr,
1202 ni != NULL ? ni->ni_macaddr : ik.ik_macaddr);
1203 if (!ieee80211_crypto_setkey(vap, wk))
1204 error = EIO;
1205 else if ((ik.ik_flags & IEEE80211_KEY_DEFAULT))
1206 vap->iv_def_txkey = kid;
1207 } else
1208 error = ENXIO;
1209 ieee80211_key_update_end(vap);
1210 if (ni != NULL)
1211 ieee80211_free_node(ni);
1212 return error;
1213 }
1214
1215 static __noinline int
ieee80211_ioctl_delkey(struct ieee80211vap * vap,struct ieee80211req * ireq)1216 ieee80211_ioctl_delkey(struct ieee80211vap *vap, struct ieee80211req *ireq)
1217 {
1218 struct ieee80211req_del_key dk;
1219 int kid, error;
1220
1221 if (ireq->i_len != sizeof(dk))
1222 return EINVAL;
1223 error = copyin(ireq->i_data, &dk, sizeof(dk));
1224 if (error)
1225 return error;
1226 kid = dk.idk_keyix;
1227 /* XXX uint8_t -> uint16_t */
1228 if (dk.idk_keyix == (uint8_t) IEEE80211_KEYIX_NONE) {
1229 struct ieee80211_node *ni;
1230
1231 if (vap->iv_opmode == IEEE80211_M_STA) {
1232 ni = ieee80211_ref_node(vap->iv_bss);
1233 if (!IEEE80211_ADDR_EQ(dk.idk_macaddr, ni->ni_bssid)) {
1234 ieee80211_free_node(ni);
1235 return EADDRNOTAVAIL;
1236 }
1237 } else {
1238 ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap,
1239 dk.idk_macaddr);
1240 if (ni == NULL)
1241 return ENOENT;
1242 }
1243 /* XXX error return */
1244 ieee80211_node_delucastkey(ni);
1245 ieee80211_free_node(ni);
1246 } else {
1247 if (kid >= IEEE80211_WEP_NKID)
1248 return EINVAL;
1249 /* XXX error return */
1250 ieee80211_crypto_delkey(vap, &vap->iv_nw_keys[kid]);
1251 }
1252 return 0;
1253 }
1254
1255 struct mlmeop {
1256 struct ieee80211vap *vap;
1257 int op;
1258 int reason;
1259 };
1260
1261 static void
mlmedebug(struct ieee80211vap * vap,const uint8_t mac[IEEE80211_ADDR_LEN],int op,int reason)1262 mlmedebug(struct ieee80211vap *vap, const uint8_t mac[IEEE80211_ADDR_LEN],
1263 int op, int reason)
1264 {
1265 #ifdef IEEE80211_DEBUG
1266 static const struct {
1267 int mask;
1268 const char *opstr;
1269 } ops[] = {
1270 { 0, "op#0" },
1271 { IEEE80211_MSG_IOCTL | IEEE80211_MSG_STATE |
1272 IEEE80211_MSG_ASSOC, "assoc" },
1273 { IEEE80211_MSG_IOCTL | IEEE80211_MSG_STATE |
1274 IEEE80211_MSG_ASSOC, "disassoc" },
1275 { IEEE80211_MSG_IOCTL | IEEE80211_MSG_STATE |
1276 IEEE80211_MSG_AUTH, "deauth" },
1277 { IEEE80211_MSG_IOCTL | IEEE80211_MSG_STATE |
1278 IEEE80211_MSG_AUTH, "authorize" },
1279 { IEEE80211_MSG_IOCTL | IEEE80211_MSG_STATE |
1280 IEEE80211_MSG_AUTH, "unauthorize" },
1281 };
1282
1283 if (op == IEEE80211_MLME_AUTH) {
1284 IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_IOCTL |
1285 IEEE80211_MSG_STATE | IEEE80211_MSG_AUTH, mac,
1286 "station authenticate %s via MLME (reason %d)",
1287 reason == IEEE80211_STATUS_SUCCESS ? "ACCEPT" : "REJECT",
1288 reason);
1289 } else if (!(IEEE80211_MLME_ASSOC <= op && op <= IEEE80211_MLME_AUTH)) {
1290 IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_ANY, mac,
1291 "unknown MLME request %d (reason %d)", op, reason);
1292 } else if (reason == IEEE80211_STATUS_SUCCESS) {
1293 IEEE80211_NOTE_MAC(vap, ops[op].mask, mac,
1294 "station %s via MLME", ops[op].opstr);
1295 } else {
1296 IEEE80211_NOTE_MAC(vap, ops[op].mask, mac,
1297 "station %s via MLME (reason %d)", ops[op].opstr, reason);
1298 }
1299 #endif /* IEEE80211_DEBUG */
1300 }
1301
1302 static void
domlme(void * arg,struct ieee80211_node * ni)1303 domlme(void *arg, struct ieee80211_node *ni)
1304 {
1305 struct mlmeop *mop = arg;
1306 struct ieee80211vap *vap = ni->ni_vap;
1307
1308 if (vap != mop->vap)
1309 return;
1310 /*
1311 * NB: if ni_associd is zero then the node is already cleaned
1312 * up and we don't need to do this (we're safely holding a
1313 * reference but should otherwise not modify it's state).
1314 */
1315 if (ni->ni_associd == 0)
1316 return;
1317 mlmedebug(vap, ni->ni_macaddr, mop->op, mop->reason);
1318 if (mop->op == IEEE80211_MLME_DEAUTH) {
1319 IEEE80211_SEND_MGMT(ni, IEEE80211_FC0_SUBTYPE_DEAUTH,
1320 mop->reason);
1321 } else {
1322 IEEE80211_SEND_MGMT(ni, IEEE80211_FC0_SUBTYPE_DISASSOC,
1323 mop->reason);
1324 }
1325 ieee80211_node_leave(ni);
1326 }
1327
1328 static int
setmlme_dropsta(struct ieee80211vap * vap,const uint8_t mac[IEEE80211_ADDR_LEN],struct mlmeop * mlmeop)1329 setmlme_dropsta(struct ieee80211vap *vap,
1330 const uint8_t mac[IEEE80211_ADDR_LEN], struct mlmeop *mlmeop)
1331 {
1332 struct ieee80211_node_table *nt = &vap->iv_ic->ic_sta;
1333 struct ieee80211_node *ni;
1334 int error = 0;
1335
1336 /* NB: the broadcast address means do 'em all */
1337 if (!IEEE80211_ADDR_EQ(mac, vap->iv_ifp->if_broadcastaddr)) {
1338 IEEE80211_NODE_LOCK(nt);
1339 ni = ieee80211_find_node_locked(nt, mac);
1340 IEEE80211_NODE_UNLOCK(nt);
1341 /*
1342 * Don't do the node update inside the node
1343 * table lock. This unfortunately causes LORs
1344 * with drivers and their TX paths.
1345 */
1346 if (ni != NULL) {
1347 domlme(mlmeop, ni);
1348 ieee80211_free_node(ni);
1349 } else
1350 error = ENOENT;
1351 } else {
1352 ieee80211_iterate_nodes(nt, domlme, mlmeop);
1353 }
1354 return error;
1355 }
1356
1357 static __noinline int
setmlme_common(struct ieee80211vap * vap,int op,const uint8_t mac[IEEE80211_ADDR_LEN],int reason)1358 setmlme_common(struct ieee80211vap *vap, int op,
1359 const uint8_t mac[IEEE80211_ADDR_LEN], int reason)
1360 {
1361 struct ieee80211com *ic = vap->iv_ic;
1362 struct ieee80211_node_table *nt = &ic->ic_sta;
1363 struct ieee80211_node *ni;
1364 struct mlmeop mlmeop;
1365 int error;
1366
1367 error = 0;
1368 switch (op) {
1369 case IEEE80211_MLME_DISASSOC:
1370 case IEEE80211_MLME_DEAUTH:
1371 switch (vap->iv_opmode) {
1372 case IEEE80211_M_STA:
1373 mlmedebug(vap, vap->iv_bss->ni_macaddr, op, reason);
1374 /* XXX not quite right */
1375 ieee80211_new_state(vap, IEEE80211_S_INIT, reason);
1376 break;
1377 case IEEE80211_M_HOSTAP:
1378 mlmeop.vap = vap;
1379 mlmeop.op = op;
1380 mlmeop.reason = reason;
1381 error = setmlme_dropsta(vap, mac, &mlmeop);
1382 break;
1383 case IEEE80211_M_WDS:
1384 /* XXX user app should send raw frame? */
1385 if (op != IEEE80211_MLME_DEAUTH) {
1386 error = EINVAL;
1387 break;
1388 }
1389 #if 0
1390 /* XXX accept any address, simplifies user code */
1391 if (!IEEE80211_ADDR_EQ(mac, vap->iv_bss->ni_macaddr)) {
1392 error = EINVAL;
1393 break;
1394 }
1395 #endif
1396 mlmedebug(vap, vap->iv_bss->ni_macaddr, op, reason);
1397 ni = ieee80211_ref_node(vap->iv_bss);
1398 IEEE80211_SEND_MGMT(ni,
1399 IEEE80211_FC0_SUBTYPE_DEAUTH, reason);
1400 ieee80211_free_node(ni);
1401 break;
1402 case IEEE80211_M_MBSS:
1403 IEEE80211_NODE_LOCK(nt);
1404 ni = ieee80211_find_node_locked(nt, mac);
1405 /*
1406 * Don't do the node update inside the node
1407 * table lock. This unfortunately causes LORs
1408 * with drivers and their TX paths.
1409 */
1410 IEEE80211_NODE_UNLOCK(nt);
1411 if (ni != NULL) {
1412 ieee80211_node_leave(ni);
1413 ieee80211_free_node(ni);
1414 } else {
1415 error = ENOENT;
1416 }
1417 break;
1418 default:
1419 error = EINVAL;
1420 break;
1421 }
1422 break;
1423 case IEEE80211_MLME_AUTHORIZE:
1424 case IEEE80211_MLME_UNAUTHORIZE:
1425 if (vap->iv_opmode != IEEE80211_M_HOSTAP &&
1426 vap->iv_opmode != IEEE80211_M_WDS) {
1427 error = EINVAL;
1428 break;
1429 }
1430 IEEE80211_NODE_LOCK(nt);
1431 ni = ieee80211_find_vap_node_locked(nt, vap, mac);
1432 /*
1433 * Don't do the node update inside the node
1434 * table lock. This unfortunately causes LORs
1435 * with drivers and their TX paths.
1436 */
1437 IEEE80211_NODE_UNLOCK(nt);
1438 if (ni != NULL) {
1439 mlmedebug(vap, mac, op, reason);
1440 if (op == IEEE80211_MLME_AUTHORIZE)
1441 ieee80211_node_authorize(ni);
1442 else
1443 ieee80211_node_unauthorize(ni);
1444 ieee80211_free_node(ni);
1445 } else
1446 error = ENOENT;
1447 break;
1448 case IEEE80211_MLME_AUTH:
1449 if (vap->iv_opmode != IEEE80211_M_HOSTAP) {
1450 error = EINVAL;
1451 break;
1452 }
1453 IEEE80211_NODE_LOCK(nt);
1454 ni = ieee80211_find_vap_node_locked(nt, vap, mac);
1455 /*
1456 * Don't do the node update inside the node
1457 * table lock. This unfortunately causes LORs
1458 * with drivers and their TX paths.
1459 */
1460 IEEE80211_NODE_UNLOCK(nt);
1461 if (ni != NULL) {
1462 mlmedebug(vap, mac, op, reason);
1463 if (reason == IEEE80211_STATUS_SUCCESS) {
1464 IEEE80211_SEND_MGMT(ni,
1465 IEEE80211_FC0_SUBTYPE_AUTH, 2);
1466 /*
1467 * For shared key auth, just continue the
1468 * exchange. Otherwise when 802.1x is not in
1469 * use mark the port authorized at this point
1470 * so traffic can flow.
1471 */
1472 if (ni->ni_authmode != IEEE80211_AUTH_8021X &&
1473 ni->ni_challenge == NULL)
1474 ieee80211_node_authorize(ni);
1475 } else {
1476 vap->iv_stats.is_rx_acl++;
1477 ieee80211_send_error(ni, ni->ni_macaddr,
1478 IEEE80211_FC0_SUBTYPE_AUTH, 2|(reason<<16));
1479 ieee80211_node_leave(ni);
1480 }
1481 ieee80211_free_node(ni);
1482 } else
1483 error = ENOENT;
1484 break;
1485 default:
1486 error = EINVAL;
1487 break;
1488 }
1489 return error;
1490 }
1491
1492 struct scanlookup {
1493 const uint8_t *mac;
1494 int esslen;
1495 const uint8_t *essid;
1496 const struct ieee80211_scan_entry *se;
1497 };
1498
1499 /*
1500 * Match mac address and any ssid.
1501 */
1502 static void
mlmelookup(void * arg,const struct ieee80211_scan_entry * se)1503 mlmelookup(void *arg, const struct ieee80211_scan_entry *se)
1504 {
1505 struct scanlookup *look = arg;
1506
1507 if (!IEEE80211_ADDR_EQ(look->mac, se->se_macaddr))
1508 return;
1509 if (look->esslen != 0) {
1510 if (se->se_ssid[1] != look->esslen)
1511 return;
1512 if (memcmp(look->essid, se->se_ssid+2, look->esslen))
1513 return;
1514 }
1515 look->se = se;
1516 }
1517
1518 static __noinline int
setmlme_assoc_sta(struct ieee80211vap * vap,const uint8_t mac[IEEE80211_ADDR_LEN],int ssid_len,const uint8_t ssid[IEEE80211_NWID_LEN])1519 setmlme_assoc_sta(struct ieee80211vap *vap,
1520 const uint8_t mac[IEEE80211_ADDR_LEN], int ssid_len,
1521 const uint8_t ssid[IEEE80211_NWID_LEN])
1522 {
1523 struct scanlookup lookup;
1524
1525 KASSERT(vap->iv_opmode == IEEE80211_M_STA,
1526 ("expected opmode STA not %s",
1527 ieee80211_opmode_name[vap->iv_opmode]));
1528
1529 /* NB: this is racey if roaming is !manual */
1530 lookup.se = NULL;
1531 lookup.mac = mac;
1532 lookup.esslen = ssid_len;
1533 lookup.essid = ssid;
1534 ieee80211_scan_iterate(vap, mlmelookup, &lookup);
1535 if (lookup.se == NULL)
1536 return ENOENT;
1537 mlmedebug(vap, mac, IEEE80211_MLME_ASSOC, 0);
1538 if (!ieee80211_sta_join(vap, lookup.se->se_chan, lookup.se))
1539 return EIO; /* XXX unique but could be better */
1540 return 0;
1541 }
1542
1543 static __noinline int
setmlme_assoc_adhoc(struct ieee80211vap * vap,const uint8_t mac[IEEE80211_ADDR_LEN],int ssid_len,const uint8_t ssid[IEEE80211_NWID_LEN])1544 setmlme_assoc_adhoc(struct ieee80211vap *vap,
1545 const uint8_t mac[IEEE80211_ADDR_LEN], int ssid_len,
1546 const uint8_t ssid[IEEE80211_NWID_LEN])
1547 {
1548 struct ieee80211_scan_req sr;
1549
1550 KASSERT(vap->iv_opmode == IEEE80211_M_IBSS ||
1551 vap->iv_opmode == IEEE80211_M_AHDEMO,
1552 ("expected opmode IBSS or AHDEMO not %s",
1553 ieee80211_opmode_name[vap->iv_opmode]));
1554
1555 if (ssid_len == 0)
1556 return EINVAL;
1557
1558 /* NB: IEEE80211_IOC_SSID call missing for ap_scan=2. */
1559 memset(vap->iv_des_ssid[0].ssid, 0, IEEE80211_NWID_LEN);
1560 vap->iv_des_ssid[0].len = ssid_len;
1561 memcpy(vap->iv_des_ssid[0].ssid, ssid, ssid_len);
1562 vap->iv_des_nssid = 1;
1563
1564 memset(&sr, 0, sizeof(sr));
1565 sr.sr_flags = IEEE80211_IOC_SCAN_ACTIVE | IEEE80211_IOC_SCAN_ONCE;
1566 sr.sr_duration = IEEE80211_IOC_SCAN_FOREVER;
1567 memcpy(sr.sr_ssid[0].ssid, ssid, ssid_len);
1568 sr.sr_ssid[0].len = ssid_len;
1569 sr.sr_nssid = 1;
1570
1571 return ieee80211_scanreq(vap, &sr);
1572 }
1573
1574 static __noinline int
ieee80211_ioctl_setmlme(struct ieee80211vap * vap,struct ieee80211req * ireq)1575 ieee80211_ioctl_setmlme(struct ieee80211vap *vap, struct ieee80211req *ireq)
1576 {
1577 struct ieee80211req_mlme mlme;
1578 int error;
1579
1580 if (ireq->i_len != sizeof(mlme))
1581 return EINVAL;
1582 error = copyin(ireq->i_data, &mlme, sizeof(mlme));
1583 if (error)
1584 return error;
1585 if (vap->iv_opmode == IEEE80211_M_STA &&
1586 mlme.im_op == IEEE80211_MLME_ASSOC)
1587 return setmlme_assoc_sta(vap, mlme.im_macaddr,
1588 vap->iv_des_ssid[0].len, vap->iv_des_ssid[0].ssid);
1589 else if ((vap->iv_opmode == IEEE80211_M_IBSS ||
1590 vap->iv_opmode == IEEE80211_M_AHDEMO) &&
1591 mlme.im_op == IEEE80211_MLME_ASSOC)
1592 return setmlme_assoc_adhoc(vap, mlme.im_macaddr,
1593 mlme.im_ssid_len, mlme.im_ssid);
1594 else
1595 return setmlme_common(vap, mlme.im_op,
1596 mlme.im_macaddr, mlme.im_reason);
1597 }
1598
1599 static __noinline int
ieee80211_ioctl_macmac(struct ieee80211vap * vap,struct ieee80211req * ireq)1600 ieee80211_ioctl_macmac(struct ieee80211vap *vap, struct ieee80211req *ireq)
1601 {
1602 uint8_t mac[IEEE80211_ADDR_LEN];
1603 const struct ieee80211_aclator *acl = vap->iv_acl;
1604 int error;
1605
1606 if (ireq->i_len != sizeof(mac))
1607 return EINVAL;
1608 error = copyin(ireq->i_data, mac, ireq->i_len);
1609 if (error)
1610 return error;
1611 if (acl == NULL) {
1612 acl = ieee80211_aclator_get("mac");
1613 if (acl == NULL || !acl->iac_attach(vap))
1614 return EINVAL;
1615 vap->iv_acl = acl;
1616 }
1617 if (ireq->i_type == IEEE80211_IOC_ADDMAC)
1618 acl->iac_add(vap, mac);
1619 else
1620 acl->iac_remove(vap, mac);
1621 return 0;
1622 }
1623
1624 static __noinline int
ieee80211_ioctl_setmaccmd(struct ieee80211vap * vap,struct ieee80211req * ireq)1625 ieee80211_ioctl_setmaccmd(struct ieee80211vap *vap, struct ieee80211req *ireq)
1626 {
1627 const struct ieee80211_aclator *acl = vap->iv_acl;
1628
1629 switch (ireq->i_val) {
1630 case IEEE80211_MACCMD_POLICY_OPEN:
1631 case IEEE80211_MACCMD_POLICY_ALLOW:
1632 case IEEE80211_MACCMD_POLICY_DENY:
1633 case IEEE80211_MACCMD_POLICY_RADIUS:
1634 if (acl == NULL) {
1635 acl = ieee80211_aclator_get("mac");
1636 if (acl == NULL || !acl->iac_attach(vap))
1637 return EINVAL;
1638 vap->iv_acl = acl;
1639 }
1640 acl->iac_setpolicy(vap, ireq->i_val);
1641 break;
1642 case IEEE80211_MACCMD_FLUSH:
1643 if (acl != NULL)
1644 acl->iac_flush(vap);
1645 /* NB: silently ignore when not in use */
1646 break;
1647 case IEEE80211_MACCMD_DETACH:
1648 if (acl != NULL) {
1649 vap->iv_acl = NULL;
1650 acl->iac_detach(vap);
1651 }
1652 break;
1653 default:
1654 if (acl == NULL)
1655 return EINVAL;
1656 else
1657 return acl->iac_setioctl(vap, ireq);
1658 }
1659 return 0;
1660 }
1661
1662 static __noinline int
ieee80211_ioctl_setchanlist(struct ieee80211vap * vap,struct ieee80211req * ireq)1663 ieee80211_ioctl_setchanlist(struct ieee80211vap *vap, struct ieee80211req *ireq)
1664 {
1665 struct ieee80211com *ic = vap->iv_ic;
1666 uint8_t *chanlist, *list;
1667 int i, nchan, maxchan, error;
1668
1669 if (ireq->i_len > sizeof(ic->ic_chan_active))
1670 ireq->i_len = sizeof(ic->ic_chan_active);
1671 list = IEEE80211_MALLOC(ireq->i_len + IEEE80211_CHAN_BYTES, M_TEMP,
1672 IEEE80211_M_NOWAIT | IEEE80211_M_ZERO);
1673 if (list == NULL)
1674 return ENOMEM;
1675 error = copyin(ireq->i_data, list, ireq->i_len);
1676 if (error) {
1677 IEEE80211_FREE(list, M_TEMP);
1678 return error;
1679 }
1680 nchan = 0;
1681 chanlist = list + ireq->i_len; /* NB: zero'd already */
1682 maxchan = ireq->i_len * NBBY;
1683 for (i = 0; i < ic->ic_nchans; i++) {
1684 const struct ieee80211_channel *c = &ic->ic_channels[i];
1685 /*
1686 * Calculate the intersection of the user list and the
1687 * available channels so users can do things like specify
1688 * 1-255 to get all available channels.
1689 */
1690 if (c->ic_ieee < maxchan && isset(list, c->ic_ieee)) {
1691 setbit(chanlist, c->ic_ieee);
1692 nchan++;
1693 }
1694 }
1695 if (nchan == 0) {
1696 IEEE80211_FREE(list, M_TEMP);
1697 return EINVAL;
1698 }
1699 if (ic->ic_bsschan != IEEE80211_CHAN_ANYC && /* XXX */
1700 isclr(chanlist, ic->ic_bsschan->ic_ieee))
1701 ic->ic_bsschan = IEEE80211_CHAN_ANYC;
1702 memcpy(ic->ic_chan_active, chanlist, IEEE80211_CHAN_BYTES);
1703 ieee80211_scan_flush(vap);
1704 IEEE80211_FREE(list, M_TEMP);
1705 return ENETRESET;
1706 }
1707
1708 static __noinline int
ieee80211_ioctl_setstastats(struct ieee80211vap * vap,struct ieee80211req * ireq)1709 ieee80211_ioctl_setstastats(struct ieee80211vap *vap, struct ieee80211req *ireq)
1710 {
1711 struct ieee80211_node *ni;
1712 uint8_t macaddr[IEEE80211_ADDR_LEN];
1713 int error;
1714
1715 /*
1716 * NB: we could copyin ieee80211req_sta_stats so apps
1717 * could make selective changes but that's overkill;
1718 * just clear all stats for now.
1719 */
1720 if (ireq->i_len < IEEE80211_ADDR_LEN)
1721 return EINVAL;
1722 error = copyin(ireq->i_data, macaddr, IEEE80211_ADDR_LEN);
1723 if (error != 0)
1724 return error;
1725 ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap, macaddr);
1726 if (ni == NULL)
1727 return ENOENT;
1728 /* XXX require ni_vap == vap? */
1729 memset(&ni->ni_stats, 0, sizeof(ni->ni_stats));
1730 ieee80211_free_node(ni);
1731 return 0;
1732 }
1733
1734 static __noinline int
ieee80211_ioctl_setstatxpow(struct ieee80211vap * vap,struct ieee80211req * ireq)1735 ieee80211_ioctl_setstatxpow(struct ieee80211vap *vap, struct ieee80211req *ireq)
1736 {
1737 struct ieee80211_node *ni;
1738 struct ieee80211req_sta_txpow txpow;
1739 int error;
1740
1741 if (ireq->i_len != sizeof(txpow))
1742 return EINVAL;
1743 error = copyin(ireq->i_data, &txpow, sizeof(txpow));
1744 if (error != 0)
1745 return error;
1746 ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap, txpow.it_macaddr);
1747 if (ni == NULL)
1748 return ENOENT;
1749 ni->ni_txpower = txpow.it_txpow;
1750 ieee80211_free_node(ni);
1751 return error;
1752 }
1753
1754 static __noinline int
ieee80211_ioctl_setwmeparam(struct ieee80211vap * vap,struct ieee80211req * ireq)1755 ieee80211_ioctl_setwmeparam(struct ieee80211vap *vap, struct ieee80211req *ireq)
1756 {
1757 struct ieee80211com *ic = vap->iv_ic;
1758 struct ieee80211_wme_state *wme = &ic->ic_wme;
1759 struct wmeParams *wmep, *chanp;
1760 int isbss, ac, aggrmode;
1761
1762 if ((ic->ic_caps & IEEE80211_C_WME) == 0)
1763 return EOPNOTSUPP;
1764
1765 isbss = (ireq->i_len & IEEE80211_WMEPARAM_BSS);
1766 ac = (ireq->i_len & IEEE80211_WMEPARAM_VAL);
1767 aggrmode = (wme->wme_flags & WME_F_AGGRMODE);
1768 if (ac >= WME_NUM_AC)
1769 ac = WME_AC_BE;
1770 if (isbss) {
1771 chanp = &wme->wme_bssChanParams.cap_wmeParams[ac];
1772 wmep = &wme->wme_wmeBssChanParams.cap_wmeParams[ac];
1773 } else {
1774 chanp = &wme->wme_chanParams.cap_wmeParams[ac];
1775 wmep = &wme->wme_wmeChanParams.cap_wmeParams[ac];
1776 }
1777 switch (ireq->i_type) {
1778 case IEEE80211_IOC_WME_CWMIN: /* WME: CWmin */
1779 wmep->wmep_logcwmin = ireq->i_val;
1780 if (!isbss || !aggrmode)
1781 chanp->wmep_logcwmin = ireq->i_val;
1782 break;
1783 case IEEE80211_IOC_WME_CWMAX: /* WME: CWmax */
1784 wmep->wmep_logcwmax = ireq->i_val;
1785 if (!isbss || !aggrmode)
1786 chanp->wmep_logcwmax = ireq->i_val;
1787 break;
1788 case IEEE80211_IOC_WME_AIFS: /* WME: AIFS */
1789 wmep->wmep_aifsn = ireq->i_val;
1790 if (!isbss || !aggrmode)
1791 chanp->wmep_aifsn = ireq->i_val;
1792 break;
1793 case IEEE80211_IOC_WME_TXOPLIMIT: /* WME: txops limit */
1794 wmep->wmep_txopLimit = ireq->i_val;
1795 if (!isbss || !aggrmode)
1796 chanp->wmep_txopLimit = ireq->i_val;
1797 break;
1798 case IEEE80211_IOC_WME_ACM: /* WME: ACM (bss only) */
1799 wmep->wmep_acm = ireq->i_val;
1800 if (!aggrmode)
1801 chanp->wmep_acm = ireq->i_val;
1802 break;
1803 case IEEE80211_IOC_WME_ACKPOLICY: /* WME: ACK policy (!bss only)*/
1804 wmep->wmep_noackPolicy = chanp->wmep_noackPolicy =
1805 (ireq->i_val) == 0;
1806 break;
1807 }
1808 ieee80211_wme_updateparams(vap);
1809 return 0;
1810 }
1811
1812 static int
find11gchannel(struct ieee80211com * ic,int start,int freq)1813 find11gchannel(struct ieee80211com *ic, int start, int freq)
1814 {
1815 const struct ieee80211_channel *c;
1816 int i;
1817
1818 for (i = start+1; i < ic->ic_nchans; i++) {
1819 c = &ic->ic_channels[i];
1820 if (c->ic_freq == freq && IEEE80211_IS_CHAN_ANYG(c))
1821 return 1;
1822 }
1823 /* NB: should not be needed but in case things are mis-sorted */
1824 for (i = 0; i < start; i++) {
1825 c = &ic->ic_channels[i];
1826 if (c->ic_freq == freq && IEEE80211_IS_CHAN_ANYG(c))
1827 return 1;
1828 }
1829 return 0;
1830 }
1831
1832 static struct ieee80211_channel *
findchannel(struct ieee80211com * ic,int ieee,int mode)1833 findchannel(struct ieee80211com *ic, int ieee, int mode)
1834 {
1835 static const u_int chanflags[IEEE80211_MODE_MAX] = {
1836 [IEEE80211_MODE_AUTO] = 0,
1837 [IEEE80211_MODE_11A] = IEEE80211_CHAN_A,
1838 [IEEE80211_MODE_11B] = IEEE80211_CHAN_B,
1839 [IEEE80211_MODE_11G] = IEEE80211_CHAN_G,
1840 [IEEE80211_MODE_FH] = IEEE80211_CHAN_FHSS,
1841 [IEEE80211_MODE_TURBO_A] = IEEE80211_CHAN_108A,
1842 [IEEE80211_MODE_TURBO_G] = IEEE80211_CHAN_108G,
1843 [IEEE80211_MODE_STURBO_A] = IEEE80211_CHAN_STURBO,
1844 [IEEE80211_MODE_HALF] = IEEE80211_CHAN_HALF,
1845 [IEEE80211_MODE_QUARTER] = IEEE80211_CHAN_QUARTER,
1846 /* NB: handled specially below */
1847 [IEEE80211_MODE_11NA] = IEEE80211_CHAN_A,
1848 [IEEE80211_MODE_11NG] = IEEE80211_CHAN_G,
1849 };
1850 u_int modeflags;
1851 int i;
1852
1853 modeflags = chanflags[mode];
1854 for (i = 0; i < ic->ic_nchans; i++) {
1855 struct ieee80211_channel *c = &ic->ic_channels[i];
1856
1857 if (c->ic_ieee != ieee)
1858 continue;
1859 if (mode == IEEE80211_MODE_AUTO) {
1860 /* ignore turbo channels for autoselect */
1861 if (IEEE80211_IS_CHAN_TURBO(c))
1862 continue;
1863 /*
1864 * XXX special-case 11b/g channels so we
1865 * always select the g channel if both
1866 * are present.
1867 * XXX prefer HT to non-HT?
1868 */
1869 if (!IEEE80211_IS_CHAN_B(c) ||
1870 !find11gchannel(ic, i, c->ic_freq))
1871 return c;
1872 } else {
1873 /* must check HT specially */
1874 if ((mode == IEEE80211_MODE_11NA ||
1875 mode == IEEE80211_MODE_11NG) &&
1876 !IEEE80211_IS_CHAN_HT(c))
1877 continue;
1878 if ((c->ic_flags & modeflags) == modeflags)
1879 return c;
1880 }
1881 }
1882 return NULL;
1883 }
1884
1885 /*
1886 * Check the specified against any desired mode (aka netband).
1887 * This is only used (presently) when operating in hostap mode
1888 * to enforce consistency.
1889 */
1890 static int
check_mode_consistency(const struct ieee80211_channel * c,int mode)1891 check_mode_consistency(const struct ieee80211_channel *c, int mode)
1892 {
1893 KASSERT(c != IEEE80211_CHAN_ANYC, ("oops, no channel"));
1894
1895 switch (mode) {
1896 case IEEE80211_MODE_11B:
1897 return (IEEE80211_IS_CHAN_B(c));
1898 case IEEE80211_MODE_11G:
1899 return (IEEE80211_IS_CHAN_ANYG(c) && !IEEE80211_IS_CHAN_HT(c));
1900 case IEEE80211_MODE_11A:
1901 return (IEEE80211_IS_CHAN_A(c) && !IEEE80211_IS_CHAN_HT(c));
1902 case IEEE80211_MODE_STURBO_A:
1903 return (IEEE80211_IS_CHAN_STURBO(c));
1904 case IEEE80211_MODE_11NA:
1905 return (IEEE80211_IS_CHAN_HTA(c));
1906 case IEEE80211_MODE_11NG:
1907 return (IEEE80211_IS_CHAN_HTG(c));
1908 }
1909 return 1;
1910
1911 }
1912
1913 /*
1914 * Common code to set the current channel. If the device
1915 * is up and running this may result in an immediate channel
1916 * change or a kick of the state machine.
1917 */
1918 static int
setcurchan(struct ieee80211vap * vap,struct ieee80211_channel * c)1919 setcurchan(struct ieee80211vap *vap, struct ieee80211_channel *c)
1920 {
1921 struct ieee80211com *ic = vap->iv_ic;
1922 int error;
1923
1924 if (c != IEEE80211_CHAN_ANYC) {
1925 if (IEEE80211_IS_CHAN_RADAR(c))
1926 return EBUSY; /* XXX better code? */
1927 if (vap->iv_opmode == IEEE80211_M_HOSTAP) {
1928 if (IEEE80211_IS_CHAN_NOHOSTAP(c))
1929 return EINVAL;
1930 if (!check_mode_consistency(c, vap->iv_des_mode))
1931 return EINVAL;
1932 } else if (vap->iv_opmode == IEEE80211_M_IBSS) {
1933 if (IEEE80211_IS_CHAN_NOADHOC(c))
1934 return EINVAL;
1935 }
1936 if ((vap->iv_state == IEEE80211_S_RUN || vap->iv_state == IEEE80211_S_SLEEP) &&
1937 vap->iv_bss->ni_chan == c)
1938 return 0; /* NB: nothing to do */
1939 }
1940 vap->iv_des_chan = c;
1941
1942 error = 0;
1943 if (vap->iv_opmode == IEEE80211_M_MONITOR &&
1944 vap->iv_des_chan != IEEE80211_CHAN_ANYC) {
1945 /*
1946 * Monitor mode can switch directly.
1947 */
1948 if (IFNET_IS_UP_RUNNING(vap->iv_ifp)) {
1949 /* XXX need state machine for other vap's to follow */
1950 ieee80211_setcurchan(ic, vap->iv_des_chan);
1951 vap->iv_bss->ni_chan = ic->ic_curchan;
1952 } else
1953 ic->ic_curchan = vap->iv_des_chan;
1954 ic->ic_rt = ieee80211_get_ratetable(ic->ic_curchan);
1955 } else {
1956 /*
1957 * Need to go through the state machine in case we
1958 * need to reassociate or the like. The state machine
1959 * will pickup the desired channel and avoid scanning.
1960 */
1961 if (IS_UP_AUTO(vap))
1962 ieee80211_new_state(vap, IEEE80211_S_SCAN, 0);
1963 else if (vap->iv_des_chan != IEEE80211_CHAN_ANYC) {
1964 /*
1965 * When not up+running and a real channel has
1966 * been specified fix the current channel so
1967 * there is immediate feedback; e.g. via ifconfig.
1968 */
1969 ic->ic_curchan = vap->iv_des_chan;
1970 ic->ic_rt = ieee80211_get_ratetable(ic->ic_curchan);
1971 }
1972 }
1973 return error;
1974 }
1975
1976 /*
1977 * Old api for setting the current channel; this is
1978 * deprecated because channel numbers are ambiguous.
1979 */
1980 static __noinline int
ieee80211_ioctl_setchannel(struct ieee80211vap * vap,const struct ieee80211req * ireq)1981 ieee80211_ioctl_setchannel(struct ieee80211vap *vap,
1982 const struct ieee80211req *ireq)
1983 {
1984 struct ieee80211com *ic = vap->iv_ic;
1985 struct ieee80211_channel *c;
1986
1987 /* XXX 0xffff overflows 16-bit signed */
1988 if (ireq->i_val == 0 ||
1989 ireq->i_val == (int16_t) IEEE80211_CHAN_ANY) {
1990 c = IEEE80211_CHAN_ANYC;
1991 } else {
1992 struct ieee80211_channel *c2;
1993
1994 c = findchannel(ic, ireq->i_val, vap->iv_des_mode);
1995 if (c == NULL) {
1996 c = findchannel(ic, ireq->i_val,
1997 IEEE80211_MODE_AUTO);
1998 if (c == NULL)
1999 return EINVAL;
2000 }
2001 /*
2002 * Fine tune channel selection based on desired mode:
2003 * if 11b is requested, find the 11b version of any
2004 * 11g channel returned,
2005 * if static turbo, find the turbo version of any
2006 * 11a channel return,
2007 * if 11na is requested, find the ht version of any
2008 * 11a channel returned,
2009 * if 11ng is requested, find the ht version of any
2010 * 11g channel returned,
2011 * otherwise we should be ok with what we've got.
2012 */
2013 switch (vap->iv_des_mode) {
2014 case IEEE80211_MODE_11B:
2015 if (IEEE80211_IS_CHAN_ANYG(c)) {
2016 c2 = findchannel(ic, ireq->i_val,
2017 IEEE80211_MODE_11B);
2018 /* NB: should not happen, =>'s 11g w/o 11b */
2019 if (c2 != NULL)
2020 c = c2;
2021 }
2022 break;
2023 case IEEE80211_MODE_TURBO_A:
2024 if (IEEE80211_IS_CHAN_A(c)) {
2025 c2 = findchannel(ic, ireq->i_val,
2026 IEEE80211_MODE_TURBO_A);
2027 if (c2 != NULL)
2028 c = c2;
2029 }
2030 break;
2031 case IEEE80211_MODE_11NA:
2032 if (IEEE80211_IS_CHAN_A(c)) {
2033 c2 = findchannel(ic, ireq->i_val,
2034 IEEE80211_MODE_11NA);
2035 if (c2 != NULL)
2036 c = c2;
2037 }
2038 break;
2039 case IEEE80211_MODE_11NG:
2040 if (IEEE80211_IS_CHAN_ANYG(c)) {
2041 c2 = findchannel(ic, ireq->i_val,
2042 IEEE80211_MODE_11NG);
2043 if (c2 != NULL)
2044 c = c2;
2045 }
2046 break;
2047 default: /* NB: no static turboG */
2048 break;
2049 }
2050 }
2051 return setcurchan(vap, c);
2052 }
2053
2054 /*
2055 * New/current api for setting the current channel; a complete
2056 * channel description is provide so there is no ambiguity in
2057 * identifying the channel.
2058 */
2059 static __noinline int
ieee80211_ioctl_setcurchan(struct ieee80211vap * vap,const struct ieee80211req * ireq)2060 ieee80211_ioctl_setcurchan(struct ieee80211vap *vap,
2061 const struct ieee80211req *ireq)
2062 {
2063 struct ieee80211com *ic = vap->iv_ic;
2064 struct ieee80211_channel chan, *c;
2065 int error;
2066
2067 if (ireq->i_len != sizeof(chan))
2068 return EINVAL;
2069 error = copyin(ireq->i_data, &chan, sizeof(chan));
2070 if (error != 0)
2071 return error;
2072 /* XXX 0xffff overflows 16-bit signed */
2073 if (chan.ic_freq == 0 || chan.ic_freq == IEEE80211_CHAN_ANY) {
2074 c = IEEE80211_CHAN_ANYC;
2075 } else {
2076 c = ieee80211_find_channel(ic, chan.ic_freq, chan.ic_flags);
2077 if (c == NULL)
2078 return EINVAL;
2079 }
2080 return setcurchan(vap, c);
2081 }
2082
2083 static __noinline int
ieee80211_ioctl_setregdomain(struct ieee80211vap * vap,const struct ieee80211req * ireq)2084 ieee80211_ioctl_setregdomain(struct ieee80211vap *vap,
2085 const struct ieee80211req *ireq)
2086 {
2087 struct ieee80211_regdomain_req *reg;
2088 int nchans, error;
2089
2090 nchans = 1 + ((ireq->i_len - sizeof(struct ieee80211_regdomain_req)) /
2091 sizeof(struct ieee80211_channel));
2092 if (!(1 <= nchans && nchans <= IEEE80211_CHAN_MAX)) {
2093 IEEE80211_DPRINTF(vap, IEEE80211_MSG_IOCTL,
2094 "%s: bad # chans, i_len %d nchans %d\n", __func__,
2095 ireq->i_len, nchans);
2096 return EINVAL;
2097 }
2098 reg = (struct ieee80211_regdomain_req *)
2099 IEEE80211_MALLOC(IEEE80211_REGDOMAIN_SIZE(nchans), M_TEMP,
2100 IEEE80211_M_NOWAIT | IEEE80211_M_ZERO);
2101 if (reg == NULL) {
2102 IEEE80211_DPRINTF(vap, IEEE80211_MSG_IOCTL,
2103 "%s: no memory, nchans %d\n", __func__, nchans);
2104 return ENOMEM;
2105 }
2106 error = copyin(ireq->i_data, reg, IEEE80211_REGDOMAIN_SIZE(nchans));
2107 if (error == 0) {
2108 /* NB: validate inline channel count against storage size */
2109 if (reg->chaninfo.ic_nchans != nchans) {
2110 IEEE80211_DPRINTF(vap, IEEE80211_MSG_IOCTL,
2111 "%s: chan cnt mismatch, %d != %d\n", __func__,
2112 reg->chaninfo.ic_nchans, nchans);
2113 error = EINVAL;
2114 } else
2115 error = ieee80211_setregdomain(vap, reg);
2116 }
2117 IEEE80211_FREE(reg, M_TEMP);
2118
2119 return (error == 0 ? ENETRESET : error);
2120 }
2121
2122 static int
ieee80211_ioctl_setroam(struct ieee80211vap * vap,const struct ieee80211req * ireq)2123 ieee80211_ioctl_setroam(struct ieee80211vap *vap,
2124 const struct ieee80211req *ireq)
2125 {
2126 if (ireq->i_len != sizeof(vap->iv_roamparms))
2127 return EINVAL;
2128 /* XXX validate params */
2129 /* XXX? ENETRESET to push to device? */
2130 return copyin(ireq->i_data, vap->iv_roamparms,
2131 sizeof(vap->iv_roamparms));
2132 }
2133
2134 static int
checkrate(const struct ieee80211_rateset * rs,int rate)2135 checkrate(const struct ieee80211_rateset *rs, int rate)
2136 {
2137 int i;
2138
2139 if (rate == IEEE80211_FIXED_RATE_NONE)
2140 return 1;
2141 for (i = 0; i < rs->rs_nrates; i++)
2142 if ((rs->rs_rates[i] & IEEE80211_RATE_VAL) == rate)
2143 return 1;
2144 return 0;
2145 }
2146
2147 static int
checkmcs(int mcs)2148 checkmcs(int mcs)
2149 {
2150 if (mcs == IEEE80211_FIXED_RATE_NONE)
2151 return 1;
2152 if ((mcs & IEEE80211_RATE_MCS) == 0) /* MCS always have 0x80 set */
2153 return 0;
2154 return (mcs & 0x7f) <= 15; /* XXX could search ht rate set */
2155 }
2156
2157 static __noinline int
ieee80211_ioctl_settxparams(struct ieee80211vap * vap,const struct ieee80211req * ireq)2158 ieee80211_ioctl_settxparams(struct ieee80211vap *vap,
2159 const struct ieee80211req *ireq)
2160 {
2161 struct ieee80211com *ic = vap->iv_ic;
2162 struct ieee80211_txparams_req parms; /* XXX stack use? */
2163 struct ieee80211_txparam *src, *dst;
2164 const struct ieee80211_rateset *rs;
2165 int error, mode, changed, is11n, nmodes;
2166
2167 /* NB: accept short requests for backwards compat */
2168 if (ireq->i_len > sizeof(parms))
2169 return EINVAL;
2170 error = copyin(ireq->i_data, &parms, ireq->i_len);
2171 if (error != 0)
2172 return error;
2173 nmodes = ireq->i_len / sizeof(struct ieee80211_txparam);
2174 changed = 0;
2175 /* validate parameters and check if anything changed */
2176 for (mode = IEEE80211_MODE_11A; mode < nmodes; mode++) {
2177 if (isclr(ic->ic_modecaps, mode))
2178 continue;
2179 src = &parms.params[mode];
2180 dst = &vap->iv_txparms[mode];
2181 rs = &ic->ic_sup_rates[mode]; /* NB: 11n maps to legacy */
2182 is11n = (mode == IEEE80211_MODE_11NA ||
2183 mode == IEEE80211_MODE_11NG);
2184 if (src->ucastrate != dst->ucastrate) {
2185 if (!checkrate(rs, src->ucastrate) &&
2186 (!is11n || !checkmcs(src->ucastrate)))
2187 return EINVAL;
2188 changed++;
2189 }
2190 if (src->mcastrate != dst->mcastrate) {
2191 if (!checkrate(rs, src->mcastrate) &&
2192 (!is11n || !checkmcs(src->mcastrate)))
2193 return EINVAL;
2194 changed++;
2195 }
2196 if (src->mgmtrate != dst->mgmtrate) {
2197 if (!checkrate(rs, src->mgmtrate) &&
2198 (!is11n || !checkmcs(src->mgmtrate)))
2199 return EINVAL;
2200 changed++;
2201 }
2202 if (src->maxretry != dst->maxretry) /* NB: no bounds */
2203 changed++;
2204 }
2205 if (changed) {
2206 /*
2207 * Copy new parameters in place and notify the
2208 * driver so it can push state to the device.
2209 */
2210 for (mode = IEEE80211_MODE_11A; mode < nmodes; mode++) {
2211 if (isset(ic->ic_modecaps, mode))
2212 vap->iv_txparms[mode] = parms.params[mode];
2213 }
2214 /* XXX could be more intelligent,
2215 e.g. don't reset if setting not being used */
2216 return ENETRESET;
2217 }
2218 return 0;
2219 }
2220
2221 /*
2222 * Application Information Element support.
2223 */
2224 static int
setappie(struct ieee80211_appie ** aie,const struct ieee80211req * ireq)2225 setappie(struct ieee80211_appie **aie, const struct ieee80211req *ireq)
2226 {
2227 struct ieee80211_appie *app = *aie;
2228 struct ieee80211_appie *napp;
2229 int error;
2230
2231 if (ireq->i_len == 0) { /* delete any existing ie */
2232 if (app != NULL) {
2233 *aie = NULL; /* XXX racey */
2234 IEEE80211_FREE(app, M_80211_NODE_IE);
2235 }
2236 return 0;
2237 }
2238 if (!(2 <= ireq->i_len && ireq->i_len <= IEEE80211_MAX_APPIE))
2239 return EINVAL;
2240 /*
2241 * Allocate a new appie structure and copy in the user data.
2242 * When done swap in the new structure. Note that we do not
2243 * guard against users holding a ref to the old structure;
2244 * this must be handled outside this code.
2245 *
2246 * XXX bad bad bad
2247 */
2248 napp = (struct ieee80211_appie *) IEEE80211_MALLOC(
2249 sizeof(struct ieee80211_appie) + ireq->i_len, M_80211_NODE_IE,
2250 IEEE80211_M_NOWAIT);
2251 if (napp == NULL)
2252 return ENOMEM;
2253 /* XXX holding ic lock */
2254 error = copyin(ireq->i_data, napp->ie_data, ireq->i_len);
2255 if (error) {
2256 IEEE80211_FREE(napp, M_80211_NODE_IE);
2257 return error;
2258 }
2259 napp->ie_len = ireq->i_len;
2260 *aie = napp;
2261 if (app != NULL)
2262 IEEE80211_FREE(app, M_80211_NODE_IE);
2263 return 0;
2264 }
2265
2266 static void
setwparsnie(struct ieee80211vap * vap,uint8_t * ie,int space)2267 setwparsnie(struct ieee80211vap *vap, uint8_t *ie, int space)
2268 {
2269 /* validate data is present as best we can */
2270 if (space == 0 || 2+ie[1] > space)
2271 return;
2272 if (ie[0] == IEEE80211_ELEMID_VENDOR)
2273 vap->iv_wpa_ie = ie;
2274 else if (ie[0] == IEEE80211_ELEMID_RSN)
2275 vap->iv_rsn_ie = ie;
2276 }
2277
2278 static __noinline int
ieee80211_ioctl_setappie_locked(struct ieee80211vap * vap,const struct ieee80211req * ireq,int fc0)2279 ieee80211_ioctl_setappie_locked(struct ieee80211vap *vap,
2280 const struct ieee80211req *ireq, int fc0)
2281 {
2282 int error;
2283
2284 IEEE80211_LOCK_ASSERT(vap->iv_ic);
2285
2286 switch (fc0 & IEEE80211_FC0_SUBTYPE_MASK) {
2287 case IEEE80211_FC0_SUBTYPE_BEACON:
2288 if (vap->iv_opmode != IEEE80211_M_HOSTAP &&
2289 vap->iv_opmode != IEEE80211_M_IBSS) {
2290 error = EINVAL;
2291 break;
2292 }
2293 error = setappie(&vap->iv_appie_beacon, ireq);
2294 if (error == 0)
2295 ieee80211_beacon_notify(vap, IEEE80211_BEACON_APPIE);
2296 break;
2297 case IEEE80211_FC0_SUBTYPE_PROBE_RESP:
2298 error = setappie(&vap->iv_appie_proberesp, ireq);
2299 break;
2300 case IEEE80211_FC0_SUBTYPE_ASSOC_RESP:
2301 if (vap->iv_opmode == IEEE80211_M_HOSTAP)
2302 error = setappie(&vap->iv_appie_assocresp, ireq);
2303 else
2304 error = EINVAL;
2305 break;
2306 case IEEE80211_FC0_SUBTYPE_PROBE_REQ:
2307 error = setappie(&vap->iv_appie_probereq, ireq);
2308 break;
2309 case IEEE80211_FC0_SUBTYPE_ASSOC_REQ:
2310 if (vap->iv_opmode == IEEE80211_M_STA)
2311 error = setappie(&vap->iv_appie_assocreq, ireq);
2312 else
2313 error = EINVAL;
2314 break;
2315 case (IEEE80211_APPIE_WPA & IEEE80211_FC0_SUBTYPE_MASK):
2316 error = setappie(&vap->iv_appie_wpa, ireq);
2317 if (error == 0) {
2318 /*
2319 * Must split single blob of data into separate
2320 * WPA and RSN ie's because they go in different
2321 * locations in the mgt frames.
2322 * XXX use IEEE80211_IOC_WPA2 so user code does split
2323 */
2324 vap->iv_wpa_ie = NULL;
2325 vap->iv_rsn_ie = NULL;
2326 if (vap->iv_appie_wpa != NULL) {
2327 struct ieee80211_appie *appie =
2328 vap->iv_appie_wpa;
2329 uint8_t *data = appie->ie_data;
2330
2331 /* XXX ie length validate is painful, cheat */
2332 setwparsnie(vap, data, appie->ie_len);
2333 setwparsnie(vap, data + 2 + data[1],
2334 appie->ie_len - (2 + data[1]));
2335 }
2336 if (vap->iv_opmode == IEEE80211_M_HOSTAP ||
2337 vap->iv_opmode == IEEE80211_M_IBSS) {
2338 /*
2339 * Must rebuild beacon frame as the update
2340 * mechanism doesn't handle WPA/RSN ie's.
2341 * Could extend it but it doesn't normally
2342 * change; this is just to deal with hostapd
2343 * plumbing the ie after the interface is up.
2344 */
2345 error = ENETRESET;
2346 }
2347 }
2348 break;
2349 default:
2350 error = EINVAL;
2351 break;
2352 }
2353 return error;
2354 }
2355
2356 static __noinline int
ieee80211_ioctl_setappie(struct ieee80211vap * vap,const struct ieee80211req * ireq)2357 ieee80211_ioctl_setappie(struct ieee80211vap *vap,
2358 const struct ieee80211req *ireq)
2359 {
2360 struct ieee80211com *ic = vap->iv_ic;
2361 int error;
2362 uint8_t fc0;
2363
2364 fc0 = ireq->i_val & 0xff;
2365 if ((fc0 & IEEE80211_FC0_TYPE_MASK) != IEEE80211_FC0_TYPE_MGT)
2366 return EINVAL;
2367 /* NB: could check iv_opmode and reject but hardly worth the effort */
2368 IEEE80211_LOCK(ic);
2369 error = ieee80211_ioctl_setappie_locked(vap, ireq, fc0);
2370 IEEE80211_UNLOCK(ic);
2371 return error;
2372 }
2373
2374 static __noinline int
ieee80211_ioctl_chanswitch(struct ieee80211vap * vap,struct ieee80211req * ireq)2375 ieee80211_ioctl_chanswitch(struct ieee80211vap *vap, struct ieee80211req *ireq)
2376 {
2377 struct ieee80211com *ic = vap->iv_ic;
2378 struct ieee80211_chanswitch_req csr;
2379 struct ieee80211_channel *c;
2380 int error;
2381
2382 if (ireq->i_len != sizeof(csr))
2383 return EINVAL;
2384 error = copyin(ireq->i_data, &csr, sizeof(csr));
2385 if (error != 0)
2386 return error;
2387 /* XXX adhoc mode not supported */
2388 if (vap->iv_opmode != IEEE80211_M_HOSTAP ||
2389 (vap->iv_flags & IEEE80211_F_DOTH) == 0)
2390 return EOPNOTSUPP;
2391 c = ieee80211_find_channel(ic,
2392 csr.csa_chan.ic_freq, csr.csa_chan.ic_flags);
2393 if (c == NULL)
2394 return ENOENT;
2395 IEEE80211_LOCK(ic);
2396 if ((ic->ic_flags & IEEE80211_F_CSAPENDING) == 0)
2397 ieee80211_csa_startswitch(ic, c, csr.csa_mode, csr.csa_count);
2398 else if (csr.csa_count == 0)
2399 ieee80211_csa_cancelswitch(ic);
2400 else
2401 error = EBUSY;
2402 IEEE80211_UNLOCK(ic);
2403 return error;
2404 }
2405
2406 static int
ieee80211_scanreq(struct ieee80211vap * vap,struct ieee80211_scan_req * sr)2407 ieee80211_scanreq(struct ieee80211vap *vap, struct ieee80211_scan_req *sr)
2408 {
2409 #define IEEE80211_IOC_SCAN_FLAGS \
2410 (IEEE80211_IOC_SCAN_NOPICK | IEEE80211_IOC_SCAN_ACTIVE | \
2411 IEEE80211_IOC_SCAN_PICK1ST | IEEE80211_IOC_SCAN_BGSCAN | \
2412 IEEE80211_IOC_SCAN_ONCE | IEEE80211_IOC_SCAN_NOBCAST | \
2413 IEEE80211_IOC_SCAN_NOJOIN | IEEE80211_IOC_SCAN_FLUSH | \
2414 IEEE80211_IOC_SCAN_CHECK)
2415 struct ieee80211com *ic = vap->iv_ic;
2416 int error, i;
2417
2418 /* convert duration */
2419 if (sr->sr_duration == IEEE80211_IOC_SCAN_FOREVER)
2420 sr->sr_duration = IEEE80211_SCAN_FOREVER;
2421 else {
2422 if (sr->sr_duration < IEEE80211_IOC_SCAN_DURATION_MIN ||
2423 sr->sr_duration > IEEE80211_IOC_SCAN_DURATION_MAX)
2424 return EINVAL;
2425 sr->sr_duration = msecs_to_ticks(sr->sr_duration);
2426 if (sr->sr_duration < 1)
2427 sr->sr_duration = 1;
2428 }
2429 /* convert min/max channel dwell */
2430 if (sr->sr_mindwell != 0) {
2431 sr->sr_mindwell = msecs_to_ticks(sr->sr_mindwell);
2432 if (sr->sr_mindwell < 1)
2433 sr->sr_mindwell = 1;
2434 }
2435 if (sr->sr_maxdwell != 0) {
2436 sr->sr_maxdwell = msecs_to_ticks(sr->sr_maxdwell);
2437 if (sr->sr_maxdwell < 1)
2438 sr->sr_maxdwell = 1;
2439 }
2440 /* NB: silently reduce ssid count to what is supported */
2441 if (sr->sr_nssid > IEEE80211_SCAN_MAX_SSID)
2442 sr->sr_nssid = IEEE80211_SCAN_MAX_SSID;
2443 for (i = 0; i < sr->sr_nssid; i++)
2444 if (sr->sr_ssid[i].len > IEEE80211_NWID_LEN)
2445 return EINVAL;
2446 /* cleanse flags just in case, could reject if invalid flags */
2447 sr->sr_flags &= IEEE80211_IOC_SCAN_FLAGS;
2448 /*
2449 * Add an implicit NOPICK if the vap is not marked UP. This
2450 * allows applications to scan without joining a bss (or picking
2451 * a channel and setting up a bss) and without forcing manual
2452 * roaming mode--you just need to mark the parent device UP.
2453 */
2454 if ((vap->iv_ifp->if_flags & IFF_UP) == 0)
2455 sr->sr_flags |= IEEE80211_IOC_SCAN_NOPICK;
2456
2457 IEEE80211_DPRINTF(vap, IEEE80211_MSG_SCAN,
2458 "%s: flags 0x%x%s duration 0x%x mindwell %u maxdwell %u nssid %d\n",
2459 __func__, sr->sr_flags,
2460 (vap->iv_ifp->if_flags & IFF_UP) == 0 ? " (!IFF_UP)" : "",
2461 sr->sr_duration, sr->sr_mindwell, sr->sr_maxdwell, sr->sr_nssid);
2462 /*
2463 * If we are in INIT state then the driver has never had a chance
2464 * to setup hardware state to do a scan; we must use the state
2465 * machine to get us up to the SCAN state but once we reach SCAN
2466 * state we then want to use the supplied params. Stash the
2467 * parameters in the vap and mark IEEE80211_FEXT_SCANREQ; the
2468 * state machines will recognize this and use the stashed params
2469 * to issue the scan request.
2470 *
2471 * Otherwise just invoke the scan machinery directly.
2472 */
2473 IEEE80211_LOCK(ic);
2474 if (vap->iv_state == IEEE80211_S_INIT) {
2475 /* NB: clobbers previous settings */
2476 vap->iv_scanreq_flags = sr->sr_flags;
2477 vap->iv_scanreq_duration = sr->sr_duration;
2478 vap->iv_scanreq_nssid = sr->sr_nssid;
2479 for (i = 0; i < sr->sr_nssid; i++) {
2480 vap->iv_scanreq_ssid[i].len = sr->sr_ssid[i].len;
2481 memcpy(vap->iv_scanreq_ssid[i].ssid,
2482 sr->sr_ssid[i].ssid, sr->sr_ssid[i].len);
2483 }
2484 vap->iv_flags_ext |= IEEE80211_FEXT_SCANREQ;
2485 IEEE80211_UNLOCK(ic);
2486 ieee80211_new_state(vap, IEEE80211_S_SCAN, 0);
2487 } else {
2488 vap->iv_flags_ext &= ~IEEE80211_FEXT_SCANREQ;
2489 IEEE80211_UNLOCK(ic);
2490 if (sr->sr_flags & IEEE80211_IOC_SCAN_CHECK) {
2491 error = ieee80211_check_scan(vap, sr->sr_flags,
2492 sr->sr_duration, sr->sr_mindwell, sr->sr_maxdwell,
2493 sr->sr_nssid,
2494 /* NB: cheat, we assume structures are compatible */
2495 (const struct ieee80211_scan_ssid *) &sr->sr_ssid[0]);
2496 } else {
2497 error = ieee80211_start_scan(vap, sr->sr_flags,
2498 sr->sr_duration, sr->sr_mindwell, sr->sr_maxdwell,
2499 sr->sr_nssid,
2500 /* NB: cheat, we assume structures are compatible */
2501 (const struct ieee80211_scan_ssid *) &sr->sr_ssid[0]);
2502 }
2503 if (error == 0)
2504 return EINPROGRESS;
2505 }
2506 return 0;
2507 #undef IEEE80211_IOC_SCAN_FLAGS
2508 }
2509
2510 static __noinline int
ieee80211_ioctl_scanreq(struct ieee80211vap * vap,struct ieee80211req * ireq)2511 ieee80211_ioctl_scanreq(struct ieee80211vap *vap, struct ieee80211req *ireq)
2512 {
2513 struct ieee80211_scan_req sr; /* XXX off stack? */
2514 int error;
2515
2516 if (ireq->i_len != sizeof(sr))
2517 return EINVAL;
2518 error = copyin(ireq->i_data, &sr, sizeof(sr));
2519 if (error != 0)
2520 return error;
2521 return ieee80211_scanreq(vap, &sr);
2522 }
2523
2524 static __noinline int
ieee80211_ioctl_setstavlan(struct ieee80211vap * vap,struct ieee80211req * ireq)2525 ieee80211_ioctl_setstavlan(struct ieee80211vap *vap, struct ieee80211req *ireq)
2526 {
2527 struct ieee80211_node *ni;
2528 struct ieee80211req_sta_vlan vlan;
2529 int error;
2530
2531 if (ireq->i_len != sizeof(vlan))
2532 return EINVAL;
2533 error = copyin(ireq->i_data, &vlan, sizeof(vlan));
2534 if (error != 0)
2535 return error;
2536 if (!IEEE80211_ADDR_EQ(vlan.sv_macaddr, zerobssid)) {
2537 ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap,
2538 vlan.sv_macaddr);
2539 if (ni == NULL)
2540 return ENOENT;
2541 } else
2542 ni = ieee80211_ref_node(vap->iv_bss);
2543 ni->ni_vlan = vlan.sv_vlan;
2544 ieee80211_free_node(ni);
2545 return error;
2546 }
2547
2548 static int
isvap11g(const struct ieee80211vap * vap)2549 isvap11g(const struct ieee80211vap *vap)
2550 {
2551 const struct ieee80211_node *bss = vap->iv_bss;
2552 return bss->ni_chan != IEEE80211_CHAN_ANYC &&
2553 IEEE80211_IS_CHAN_ANYG(bss->ni_chan);
2554 }
2555
2556 static int
isvapht(const struct ieee80211vap * vap)2557 isvapht(const struct ieee80211vap *vap)
2558 {
2559 const struct ieee80211_node *bss = vap->iv_bss;
2560 return bss->ni_chan != IEEE80211_CHAN_ANYC &&
2561 IEEE80211_IS_CHAN_HT(bss->ni_chan);
2562 }
2563
2564 /*
2565 * Dummy ioctl set handler so the linker set is defined.
2566 */
2567 static int
dummy_ioctl_set(struct ieee80211vap * vap,struct ieee80211req * ireq)2568 dummy_ioctl_set(struct ieee80211vap *vap, struct ieee80211req *ireq)
2569 {
2570 return ENOSYS;
2571 }
2572 IEEE80211_IOCTL_SET(dummy, dummy_ioctl_set);
2573
2574 static int
ieee80211_ioctl_setdefault(struct ieee80211vap * vap,struct ieee80211req * ireq)2575 ieee80211_ioctl_setdefault(struct ieee80211vap *vap, struct ieee80211req *ireq)
2576 {
2577 ieee80211_ioctl_setfunc * const *set;
2578 int error;
2579
2580 SET_FOREACH(set, ieee80211_ioctl_setset) {
2581 error = (*set)(vap, ireq);
2582 if (error != ENOSYS)
2583 return error;
2584 }
2585 return EINVAL;
2586 }
2587
2588 static __noinline int
ieee80211_ioctl_set80211(struct ieee80211vap * vap,u_long cmd,struct ieee80211req * ireq)2589 ieee80211_ioctl_set80211(struct ieee80211vap *vap, u_long cmd, struct ieee80211req *ireq)
2590 {
2591 struct ieee80211com *ic = vap->iv_ic;
2592 int error;
2593 const struct ieee80211_authenticator *auth;
2594 uint8_t tmpkey[IEEE80211_KEYBUF_SIZE];
2595 char tmpssid[IEEE80211_NWID_LEN];
2596 uint8_t tmpbssid[IEEE80211_ADDR_LEN];
2597 struct ieee80211_key *k;
2598 u_int kid;
2599 uint32_t flags;
2600
2601 error = 0;
2602 switch (ireq->i_type) {
2603 case IEEE80211_IOC_SSID:
2604 if (ireq->i_val != 0 ||
2605 ireq->i_len > IEEE80211_NWID_LEN)
2606 return EINVAL;
2607 error = copyin(ireq->i_data, tmpssid, ireq->i_len);
2608 if (error)
2609 break;
2610 memset(vap->iv_des_ssid[0].ssid, 0, IEEE80211_NWID_LEN);
2611 vap->iv_des_ssid[0].len = ireq->i_len;
2612 memcpy(vap->iv_des_ssid[0].ssid, tmpssid, ireq->i_len);
2613 vap->iv_des_nssid = (ireq->i_len > 0);
2614 error = ENETRESET;
2615 break;
2616 case IEEE80211_IOC_WEP:
2617 switch (ireq->i_val) {
2618 case IEEE80211_WEP_OFF:
2619 vap->iv_flags &= ~IEEE80211_F_PRIVACY;
2620 vap->iv_flags &= ~IEEE80211_F_DROPUNENC;
2621 break;
2622 case IEEE80211_WEP_ON:
2623 vap->iv_flags |= IEEE80211_F_PRIVACY;
2624 vap->iv_flags |= IEEE80211_F_DROPUNENC;
2625 break;
2626 case IEEE80211_WEP_MIXED:
2627 vap->iv_flags |= IEEE80211_F_PRIVACY;
2628 vap->iv_flags &= ~IEEE80211_F_DROPUNENC;
2629 break;
2630 }
2631 error = ENETRESET;
2632 break;
2633 case IEEE80211_IOC_WEPKEY:
2634 kid = (u_int) ireq->i_val;
2635 if (kid >= IEEE80211_WEP_NKID)
2636 return EINVAL;
2637 k = &vap->iv_nw_keys[kid];
2638 if (ireq->i_len == 0) {
2639 /* zero-len =>'s delete any existing key */
2640 (void) ieee80211_crypto_delkey(vap, k);
2641 break;
2642 }
2643 if (ireq->i_len > sizeof(tmpkey))
2644 return EINVAL;
2645 memset(tmpkey, 0, sizeof(tmpkey));
2646 error = copyin(ireq->i_data, tmpkey, ireq->i_len);
2647 if (error)
2648 break;
2649 ieee80211_key_update_begin(vap);
2650 k->wk_keyix = kid; /* NB: force fixed key id */
2651 if (ieee80211_crypto_newkey(vap, IEEE80211_CIPHER_WEP,
2652 IEEE80211_KEY_XMIT | IEEE80211_KEY_RECV, k)) {
2653 k->wk_keylen = ireq->i_len;
2654 memcpy(k->wk_key, tmpkey, sizeof(tmpkey));
2655 IEEE80211_ADDR_COPY(k->wk_macaddr, vap->iv_myaddr);
2656 if (!ieee80211_crypto_setkey(vap, k))
2657 error = EINVAL;
2658 } else
2659 error = EINVAL;
2660 ieee80211_key_update_end(vap);
2661 break;
2662 case IEEE80211_IOC_WEPTXKEY:
2663 kid = (u_int) ireq->i_val;
2664 if (kid >= IEEE80211_WEP_NKID &&
2665 (uint16_t) kid != IEEE80211_KEYIX_NONE)
2666 return EINVAL;
2667 vap->iv_def_txkey = kid;
2668 break;
2669 case IEEE80211_IOC_AUTHMODE:
2670 switch (ireq->i_val) {
2671 case IEEE80211_AUTH_WPA:
2672 case IEEE80211_AUTH_8021X: /* 802.1x */
2673 case IEEE80211_AUTH_OPEN: /* open */
2674 case IEEE80211_AUTH_SHARED: /* shared-key */
2675 case IEEE80211_AUTH_AUTO: /* auto */
2676 auth = ieee80211_authenticator_get(ireq->i_val);
2677 if (auth == NULL)
2678 return EINVAL;
2679 break;
2680 default:
2681 return EINVAL;
2682 }
2683 switch (ireq->i_val) {
2684 case IEEE80211_AUTH_WPA: /* WPA w/ 802.1x */
2685 vap->iv_flags |= IEEE80211_F_PRIVACY;
2686 ireq->i_val = IEEE80211_AUTH_8021X;
2687 break;
2688 case IEEE80211_AUTH_OPEN: /* open */
2689 vap->iv_flags &= ~(IEEE80211_F_WPA|IEEE80211_F_PRIVACY);
2690 break;
2691 case IEEE80211_AUTH_SHARED: /* shared-key */
2692 case IEEE80211_AUTH_8021X: /* 802.1x */
2693 vap->iv_flags &= ~IEEE80211_F_WPA;
2694 /* both require a key so mark the PRIVACY capability */
2695 vap->iv_flags |= IEEE80211_F_PRIVACY;
2696 break;
2697 case IEEE80211_AUTH_AUTO: /* auto */
2698 vap->iv_flags &= ~IEEE80211_F_WPA;
2699 /* XXX PRIVACY handling? */
2700 /* XXX what's the right way to do this? */
2701 break;
2702 }
2703 /* NB: authenticator attach/detach happens on state change */
2704 vap->iv_bss->ni_authmode = ireq->i_val;
2705 /* XXX mixed/mode/usage? */
2706 vap->iv_auth = auth;
2707 error = ENETRESET;
2708 break;
2709 case IEEE80211_IOC_CHANNEL:
2710 error = ieee80211_ioctl_setchannel(vap, ireq);
2711 break;
2712 case IEEE80211_IOC_POWERSAVE:
2713 switch (ireq->i_val) {
2714 case IEEE80211_POWERSAVE_OFF:
2715 if (vap->iv_flags & IEEE80211_F_PMGTON) {
2716 ieee80211_syncflag(vap, -IEEE80211_F_PMGTON);
2717 error = ERESTART;
2718 }
2719 break;
2720 case IEEE80211_POWERSAVE_ON:
2721 if ((vap->iv_caps & IEEE80211_C_PMGT) == 0)
2722 error = EOPNOTSUPP;
2723 else if ((vap->iv_flags & IEEE80211_F_PMGTON) == 0) {
2724 ieee80211_syncflag(vap, IEEE80211_F_PMGTON);
2725 error = ERESTART;
2726 }
2727 break;
2728 default:
2729 error = EINVAL;
2730 break;
2731 }
2732 break;
2733 case IEEE80211_IOC_POWERSAVESLEEP:
2734 if (ireq->i_val < 0)
2735 return EINVAL;
2736 ic->ic_lintval = ireq->i_val;
2737 error = ERESTART;
2738 break;
2739 case IEEE80211_IOC_RTSTHRESHOLD:
2740 if (!(IEEE80211_RTS_MIN <= ireq->i_val &&
2741 ireq->i_val <= IEEE80211_RTS_MAX))
2742 return EINVAL;
2743 vap->iv_rtsthreshold = ireq->i_val;
2744 error = ERESTART;
2745 break;
2746 case IEEE80211_IOC_PROTMODE:
2747 if (ireq->i_val > IEEE80211_PROT_RTSCTS)
2748 return EINVAL;
2749 ic->ic_protmode = (enum ieee80211_protmode)ireq->i_val;
2750 /* NB: if not operating in 11g this can wait */
2751 if (ic->ic_bsschan != IEEE80211_CHAN_ANYC &&
2752 IEEE80211_IS_CHAN_ANYG(ic->ic_bsschan))
2753 error = ERESTART;
2754 break;
2755 case IEEE80211_IOC_TXPOWER:
2756 if ((ic->ic_caps & IEEE80211_C_TXPMGT) == 0)
2757 return EOPNOTSUPP;
2758 if (!(IEEE80211_TXPOWER_MIN <= ireq->i_val &&
2759 ireq->i_val <= IEEE80211_TXPOWER_MAX))
2760 return EINVAL;
2761 ic->ic_txpowlimit = ireq->i_val;
2762 error = ERESTART;
2763 break;
2764 case IEEE80211_IOC_ROAMING:
2765 if (!(IEEE80211_ROAMING_DEVICE <= ireq->i_val &&
2766 ireq->i_val <= IEEE80211_ROAMING_MANUAL))
2767 return EINVAL;
2768 vap->iv_roaming = (enum ieee80211_roamingmode)ireq->i_val;
2769 /* XXXX reset? */
2770 break;
2771 case IEEE80211_IOC_PRIVACY:
2772 if (ireq->i_val) {
2773 /* XXX check for key state? */
2774 vap->iv_flags |= IEEE80211_F_PRIVACY;
2775 } else
2776 vap->iv_flags &= ~IEEE80211_F_PRIVACY;
2777 /* XXX ERESTART? */
2778 break;
2779 case IEEE80211_IOC_DROPUNENCRYPTED:
2780 if (ireq->i_val)
2781 vap->iv_flags |= IEEE80211_F_DROPUNENC;
2782 else
2783 vap->iv_flags &= ~IEEE80211_F_DROPUNENC;
2784 /* XXX ERESTART? */
2785 break;
2786 case IEEE80211_IOC_WPAKEY:
2787 error = ieee80211_ioctl_setkey(vap, ireq);
2788 break;
2789 case IEEE80211_IOC_DELKEY:
2790 error = ieee80211_ioctl_delkey(vap, ireq);
2791 break;
2792 case IEEE80211_IOC_MLME:
2793 error = ieee80211_ioctl_setmlme(vap, ireq);
2794 break;
2795 case IEEE80211_IOC_COUNTERMEASURES:
2796 if (ireq->i_val) {
2797 if ((vap->iv_flags & IEEE80211_F_WPA) == 0)
2798 return EOPNOTSUPP;
2799 vap->iv_flags |= IEEE80211_F_COUNTERM;
2800 } else
2801 vap->iv_flags &= ~IEEE80211_F_COUNTERM;
2802 /* XXX ERESTART? */
2803 break;
2804 case IEEE80211_IOC_WPA:
2805 if (ireq->i_val > 3)
2806 return EINVAL;
2807 /* XXX verify ciphers available */
2808 flags = vap->iv_flags & ~IEEE80211_F_WPA;
2809 switch (ireq->i_val) {
2810 case 0:
2811 /* wpa_supplicant calls this to clear the WPA config */
2812 break;
2813 case 1:
2814 if (!(vap->iv_caps & IEEE80211_C_WPA1))
2815 return EOPNOTSUPP;
2816 flags |= IEEE80211_F_WPA1;
2817 break;
2818 case 2:
2819 if (!(vap->iv_caps & IEEE80211_C_WPA2))
2820 return EOPNOTSUPP;
2821 flags |= IEEE80211_F_WPA2;
2822 break;
2823 case 3:
2824 if ((vap->iv_caps & IEEE80211_C_WPA) != IEEE80211_C_WPA)
2825 return EOPNOTSUPP;
2826 flags |= IEEE80211_F_WPA1 | IEEE80211_F_WPA2;
2827 break;
2828 default: /* Can't set any -> error */
2829 return EOPNOTSUPP;
2830 }
2831 vap->iv_flags = flags;
2832 error = ERESTART; /* NB: can change beacon frame */
2833 break;
2834 case IEEE80211_IOC_WME:
2835 if (ireq->i_val) {
2836 if ((vap->iv_caps & IEEE80211_C_WME) == 0)
2837 return EOPNOTSUPP;
2838 ieee80211_syncflag(vap, IEEE80211_F_WME);
2839 } else
2840 ieee80211_syncflag(vap, -IEEE80211_F_WME);
2841 error = ERESTART; /* NB: can change beacon frame */
2842 break;
2843 case IEEE80211_IOC_HIDESSID:
2844 if (ireq->i_val)
2845 vap->iv_flags |= IEEE80211_F_HIDESSID;
2846 else
2847 vap->iv_flags &= ~IEEE80211_F_HIDESSID;
2848 error = ERESTART; /* XXX ENETRESET? */
2849 break;
2850 case IEEE80211_IOC_APBRIDGE:
2851 if (ireq->i_val == 0)
2852 vap->iv_flags |= IEEE80211_F_NOBRIDGE;
2853 else
2854 vap->iv_flags &= ~IEEE80211_F_NOBRIDGE;
2855 break;
2856 case IEEE80211_IOC_BSSID:
2857 if (ireq->i_len != sizeof(tmpbssid))
2858 return EINVAL;
2859 error = copyin(ireq->i_data, tmpbssid, ireq->i_len);
2860 if (error)
2861 break;
2862 IEEE80211_ADDR_COPY(vap->iv_des_bssid, tmpbssid);
2863 if (IEEE80211_ADDR_EQ(vap->iv_des_bssid, zerobssid))
2864 vap->iv_flags &= ~IEEE80211_F_DESBSSID;
2865 else
2866 vap->iv_flags |= IEEE80211_F_DESBSSID;
2867 error = ENETRESET;
2868 break;
2869 case IEEE80211_IOC_CHANLIST:
2870 error = ieee80211_ioctl_setchanlist(vap, ireq);
2871 break;
2872 #define OLD_IEEE80211_IOC_SCAN_REQ 23
2873 #ifdef OLD_IEEE80211_IOC_SCAN_REQ
2874 case OLD_IEEE80211_IOC_SCAN_REQ:
2875 IEEE80211_DPRINTF(vap, IEEE80211_MSG_SCAN,
2876 "%s: active scan request\n", __func__);
2877 /*
2878 * If we are in INIT state then the driver has never
2879 * had a chance to setup hardware state to do a scan;
2880 * use the state machine to get us up the SCAN state.
2881 * Otherwise just invoke the scan machinery to start
2882 * a one-time scan.
2883 */
2884 if (vap->iv_state == IEEE80211_S_INIT)
2885 ieee80211_new_state(vap, IEEE80211_S_SCAN, 0);
2886 else
2887 (void) ieee80211_start_scan(vap,
2888 IEEE80211_SCAN_ACTIVE |
2889 IEEE80211_SCAN_NOPICK |
2890 IEEE80211_SCAN_ONCE,
2891 IEEE80211_SCAN_FOREVER, 0, 0,
2892 /* XXX use ioctl params */
2893 vap->iv_des_nssid, vap->iv_des_ssid);
2894 break;
2895 #endif /* OLD_IEEE80211_IOC_SCAN_REQ */
2896 case IEEE80211_IOC_SCAN_REQ:
2897 error = ieee80211_ioctl_scanreq(vap, ireq);
2898 break;
2899 case IEEE80211_IOC_SCAN_CANCEL:
2900 IEEE80211_DPRINTF(vap, IEEE80211_MSG_SCAN,
2901 "%s: cancel scan\n", __func__);
2902 ieee80211_cancel_scan(vap);
2903 break;
2904 case IEEE80211_IOC_HTCONF:
2905 if (ireq->i_val & 1)
2906 ieee80211_syncflag_ht(vap, IEEE80211_FHT_HT);
2907 else
2908 ieee80211_syncflag_ht(vap, -IEEE80211_FHT_HT);
2909 if (ireq->i_val & 2)
2910 ieee80211_syncflag_ht(vap, IEEE80211_FHT_USEHT40);
2911 else
2912 ieee80211_syncflag_ht(vap, -IEEE80211_FHT_USEHT40);
2913 error = ENETRESET;
2914 break;
2915 case IEEE80211_IOC_ADDMAC:
2916 case IEEE80211_IOC_DELMAC:
2917 error = ieee80211_ioctl_macmac(vap, ireq);
2918 break;
2919 case IEEE80211_IOC_MACCMD:
2920 error = ieee80211_ioctl_setmaccmd(vap, ireq);
2921 break;
2922 case IEEE80211_IOC_STA_STATS:
2923 error = ieee80211_ioctl_setstastats(vap, ireq);
2924 break;
2925 case IEEE80211_IOC_STA_TXPOW:
2926 error = ieee80211_ioctl_setstatxpow(vap, ireq);
2927 break;
2928 case IEEE80211_IOC_WME_CWMIN: /* WME: CWmin */
2929 case IEEE80211_IOC_WME_CWMAX: /* WME: CWmax */
2930 case IEEE80211_IOC_WME_AIFS: /* WME: AIFS */
2931 case IEEE80211_IOC_WME_TXOPLIMIT: /* WME: txops limit */
2932 case IEEE80211_IOC_WME_ACM: /* WME: ACM (bss only) */
2933 case IEEE80211_IOC_WME_ACKPOLICY: /* WME: ACK policy (!bss only) */
2934 error = ieee80211_ioctl_setwmeparam(vap, ireq);
2935 break;
2936 case IEEE80211_IOC_DTIM_PERIOD:
2937 if (vap->iv_opmode != IEEE80211_M_HOSTAP &&
2938 vap->iv_opmode != IEEE80211_M_MBSS &&
2939 vap->iv_opmode != IEEE80211_M_IBSS)
2940 return EINVAL;
2941 if (IEEE80211_DTIM_MIN <= ireq->i_val &&
2942 ireq->i_val <= IEEE80211_DTIM_MAX) {
2943 vap->iv_dtim_period = ireq->i_val;
2944 error = ENETRESET; /* requires restart */
2945 } else
2946 error = EINVAL;
2947 break;
2948 case IEEE80211_IOC_BEACON_INTERVAL:
2949 if (vap->iv_opmode != IEEE80211_M_HOSTAP &&
2950 vap->iv_opmode != IEEE80211_M_MBSS &&
2951 vap->iv_opmode != IEEE80211_M_IBSS)
2952 return EINVAL;
2953 if (IEEE80211_BINTVAL_MIN <= ireq->i_val &&
2954 ireq->i_val <= IEEE80211_BINTVAL_MAX) {
2955 ic->ic_bintval = ireq->i_val;
2956 error = ENETRESET; /* requires restart */
2957 } else
2958 error = EINVAL;
2959 break;
2960 case IEEE80211_IOC_PUREG:
2961 if (ireq->i_val)
2962 vap->iv_flags |= IEEE80211_F_PUREG;
2963 else
2964 vap->iv_flags &= ~IEEE80211_F_PUREG;
2965 /* NB: reset only if we're operating on an 11g channel */
2966 if (isvap11g(vap))
2967 error = ENETRESET;
2968 break;
2969 case IEEE80211_IOC_QUIET:
2970 vap->iv_quiet= ireq->i_val;
2971 break;
2972 case IEEE80211_IOC_QUIET_COUNT:
2973 vap->iv_quiet_count=ireq->i_val;
2974 break;
2975 case IEEE80211_IOC_QUIET_PERIOD:
2976 vap->iv_quiet_period=ireq->i_val;
2977 break;
2978 case IEEE80211_IOC_QUIET_OFFSET:
2979 vap->iv_quiet_offset=ireq->i_val;
2980 break;
2981 case IEEE80211_IOC_QUIET_DUR:
2982 if(ireq->i_val < vap->iv_bss->ni_intval)
2983 vap->iv_quiet_duration = ireq->i_val;
2984 else
2985 error = EINVAL;
2986 break;
2987 case IEEE80211_IOC_BGSCAN:
2988 if (ireq->i_val) {
2989 if ((vap->iv_caps & IEEE80211_C_BGSCAN) == 0)
2990 return EOPNOTSUPP;
2991 vap->iv_flags |= IEEE80211_F_BGSCAN;
2992 } else
2993 vap->iv_flags &= ~IEEE80211_F_BGSCAN;
2994 break;
2995 case IEEE80211_IOC_BGSCAN_IDLE:
2996 if (ireq->i_val >= IEEE80211_BGSCAN_IDLE_MIN)
2997 vap->iv_bgscanidle = ireq->i_val*hz/1000;
2998 else
2999 error = EINVAL;
3000 break;
3001 case IEEE80211_IOC_BGSCAN_INTERVAL:
3002 if (ireq->i_val >= IEEE80211_BGSCAN_INTVAL_MIN)
3003 vap->iv_bgscanintvl = ireq->i_val*hz;
3004 else
3005 error = EINVAL;
3006 break;
3007 case IEEE80211_IOC_SCANVALID:
3008 if (ireq->i_val >= IEEE80211_SCAN_VALID_MIN)
3009 vap->iv_scanvalid = ireq->i_val*hz;
3010 else
3011 error = EINVAL;
3012 break;
3013 case IEEE80211_IOC_FRAGTHRESHOLD:
3014 if ((vap->iv_caps & IEEE80211_C_TXFRAG) == 0 &&
3015 ireq->i_val != IEEE80211_FRAG_MAX)
3016 return EOPNOTSUPP;
3017 if (!(IEEE80211_FRAG_MIN <= ireq->i_val &&
3018 ireq->i_val <= IEEE80211_FRAG_MAX))
3019 return EINVAL;
3020 vap->iv_fragthreshold = ireq->i_val;
3021 error = ERESTART;
3022 break;
3023 case IEEE80211_IOC_BURST:
3024 if (ireq->i_val) {
3025 if ((vap->iv_caps & IEEE80211_C_BURST) == 0)
3026 return EOPNOTSUPP;
3027 ieee80211_syncflag(vap, IEEE80211_F_BURST);
3028 } else
3029 ieee80211_syncflag(vap, -IEEE80211_F_BURST);
3030 error = ERESTART;
3031 break;
3032 case IEEE80211_IOC_BMISSTHRESHOLD:
3033 if (!(IEEE80211_HWBMISS_MIN <= ireq->i_val &&
3034 ireq->i_val <= IEEE80211_HWBMISS_MAX))
3035 return EINVAL;
3036 vap->iv_bmissthreshold = ireq->i_val;
3037 error = ERESTART;
3038 break;
3039 case IEEE80211_IOC_CURCHAN:
3040 error = ieee80211_ioctl_setcurchan(vap, ireq);
3041 break;
3042 case IEEE80211_IOC_SHORTGI:
3043 if (ireq->i_val) {
3044 #define IEEE80211_HTCAP_SHORTGI \
3045 (IEEE80211_HTCAP_SHORTGI20 | IEEE80211_HTCAP_SHORTGI40)
3046 if (((ireq->i_val ^ vap->iv_htcaps) & IEEE80211_HTCAP_SHORTGI) != 0)
3047 return EINVAL;
3048 if (ireq->i_val & IEEE80211_HTCAP_SHORTGI20)
3049 vap->iv_flags_ht |= IEEE80211_FHT_SHORTGI20;
3050 if (ireq->i_val & IEEE80211_HTCAP_SHORTGI40)
3051 vap->iv_flags_ht |= IEEE80211_FHT_SHORTGI40;
3052 #undef IEEE80211_HTCAP_SHORTGI
3053 } else
3054 vap->iv_flags_ht &=
3055 ~(IEEE80211_FHT_SHORTGI20 | IEEE80211_FHT_SHORTGI40);
3056 error = ERESTART;
3057 break;
3058 case IEEE80211_IOC_AMPDU:
3059 if (ireq->i_val && (vap->iv_htcaps & IEEE80211_HTC_AMPDU) == 0)
3060 return EINVAL;
3061 if (ireq->i_val & 1)
3062 vap->iv_flags_ht |= IEEE80211_FHT_AMPDU_TX;
3063 else
3064 vap->iv_flags_ht &= ~IEEE80211_FHT_AMPDU_TX;
3065 if (ireq->i_val & 2)
3066 vap->iv_flags_ht |= IEEE80211_FHT_AMPDU_RX;
3067 else
3068 vap->iv_flags_ht &= ~IEEE80211_FHT_AMPDU_RX;
3069 /* NB: reset only if we're operating on an 11n channel */
3070 if (isvapht(vap))
3071 error = ERESTART;
3072 break;
3073 case IEEE80211_IOC_AMPDU_LIMIT:
3074 if (!(IEEE80211_HTCAP_MAXRXAMPDU_8K <= ireq->i_val &&
3075 ireq->i_val <= IEEE80211_HTCAP_MAXRXAMPDU_64K))
3076 return EINVAL;
3077 if (vap->iv_opmode == IEEE80211_M_HOSTAP)
3078 vap->iv_ampdu_rxmax = ireq->i_val;
3079 else
3080 vap->iv_ampdu_limit = ireq->i_val;
3081 error = ERESTART;
3082 break;
3083 case IEEE80211_IOC_AMPDU_DENSITY:
3084 if (!(IEEE80211_HTCAP_MPDUDENSITY_NA <= ireq->i_val &&
3085 ireq->i_val <= IEEE80211_HTCAP_MPDUDENSITY_16))
3086 return EINVAL;
3087 vap->iv_ampdu_density = ireq->i_val;
3088 error = ERESTART;
3089 break;
3090 case IEEE80211_IOC_AMSDU:
3091 if (ireq->i_val && (vap->iv_htcaps & IEEE80211_HTC_AMSDU) == 0)
3092 return EINVAL;
3093 if (ireq->i_val & 1)
3094 vap->iv_flags_ht |= IEEE80211_FHT_AMSDU_TX;
3095 else
3096 vap->iv_flags_ht &= ~IEEE80211_FHT_AMSDU_TX;
3097 if (ireq->i_val & 2)
3098 vap->iv_flags_ht |= IEEE80211_FHT_AMSDU_RX;
3099 else
3100 vap->iv_flags_ht &= ~IEEE80211_FHT_AMSDU_RX;
3101 /* NB: reset only if we're operating on an 11n channel */
3102 if (isvapht(vap))
3103 error = ERESTART;
3104 break;
3105 case IEEE80211_IOC_AMSDU_LIMIT:
3106 /* XXX validate */
3107 vap->iv_amsdu_limit = ireq->i_val; /* XXX truncation? */
3108 break;
3109 case IEEE80211_IOC_PUREN:
3110 if (ireq->i_val) {
3111 if ((vap->iv_flags_ht & IEEE80211_FHT_HT) == 0)
3112 return EINVAL;
3113 vap->iv_flags_ht |= IEEE80211_FHT_PUREN;
3114 } else
3115 vap->iv_flags_ht &= ~IEEE80211_FHT_PUREN;
3116 /* NB: reset only if we're operating on an 11n channel */
3117 if (isvapht(vap))
3118 error = ERESTART;
3119 break;
3120 case IEEE80211_IOC_DOTH:
3121 if (ireq->i_val) {
3122 #if 0
3123 /* XXX no capability */
3124 if ((vap->iv_caps & IEEE80211_C_DOTH) == 0)
3125 return EOPNOTSUPP;
3126 #endif
3127 vap->iv_flags |= IEEE80211_F_DOTH;
3128 } else
3129 vap->iv_flags &= ~IEEE80211_F_DOTH;
3130 error = ENETRESET;
3131 break;
3132 case IEEE80211_IOC_REGDOMAIN:
3133 error = ieee80211_ioctl_setregdomain(vap, ireq);
3134 break;
3135 case IEEE80211_IOC_ROAM:
3136 error = ieee80211_ioctl_setroam(vap, ireq);
3137 break;
3138 case IEEE80211_IOC_TXPARAMS:
3139 error = ieee80211_ioctl_settxparams(vap, ireq);
3140 break;
3141 case IEEE80211_IOC_HTCOMPAT:
3142 if (ireq->i_val) {
3143 if ((vap->iv_flags_ht & IEEE80211_FHT_HT) == 0)
3144 return EOPNOTSUPP;
3145 vap->iv_flags_ht |= IEEE80211_FHT_HTCOMPAT;
3146 } else
3147 vap->iv_flags_ht &= ~IEEE80211_FHT_HTCOMPAT;
3148 /* NB: reset only if we're operating on an 11n channel */
3149 if (isvapht(vap))
3150 error = ERESTART;
3151 break;
3152 case IEEE80211_IOC_DWDS:
3153 if (ireq->i_val) {
3154 /* NB: DWDS only makes sense for WDS-capable devices */
3155 if ((ic->ic_caps & IEEE80211_C_WDS) == 0)
3156 return EOPNOTSUPP;
3157 /* NB: DWDS is used only with ap+sta vaps */
3158 if (vap->iv_opmode != IEEE80211_M_HOSTAP &&
3159 vap->iv_opmode != IEEE80211_M_STA)
3160 return EINVAL;
3161 vap->iv_flags |= IEEE80211_F_DWDS;
3162 if (vap->iv_opmode == IEEE80211_M_STA)
3163 vap->iv_flags_ext |= IEEE80211_FEXT_4ADDR;
3164 } else {
3165 vap->iv_flags &= ~IEEE80211_F_DWDS;
3166 if (vap->iv_opmode == IEEE80211_M_STA)
3167 vap->iv_flags_ext &= ~IEEE80211_FEXT_4ADDR;
3168 }
3169 break;
3170 case IEEE80211_IOC_INACTIVITY:
3171 if (ireq->i_val)
3172 vap->iv_flags_ext |= IEEE80211_FEXT_INACT;
3173 else
3174 vap->iv_flags_ext &= ~IEEE80211_FEXT_INACT;
3175 break;
3176 case IEEE80211_IOC_APPIE:
3177 error = ieee80211_ioctl_setappie(vap, ireq);
3178 break;
3179 case IEEE80211_IOC_WPS:
3180 if (ireq->i_val) {
3181 if ((vap->iv_caps & IEEE80211_C_WPA) == 0)
3182 return EOPNOTSUPP;
3183 vap->iv_flags_ext |= IEEE80211_FEXT_WPS;
3184 } else
3185 vap->iv_flags_ext &= ~IEEE80211_FEXT_WPS;
3186 break;
3187 case IEEE80211_IOC_TSN:
3188 if (ireq->i_val) {
3189 if ((vap->iv_caps & IEEE80211_C_WPA) == 0)
3190 return EOPNOTSUPP;
3191 vap->iv_flags_ext |= IEEE80211_FEXT_TSN;
3192 } else
3193 vap->iv_flags_ext &= ~IEEE80211_FEXT_TSN;
3194 break;
3195 case IEEE80211_IOC_CHANSWITCH:
3196 error = ieee80211_ioctl_chanswitch(vap, ireq);
3197 break;
3198 case IEEE80211_IOC_DFS:
3199 if (ireq->i_val) {
3200 if ((vap->iv_caps & IEEE80211_C_DFS) == 0)
3201 return EOPNOTSUPP;
3202 /* NB: DFS requires 11h support */
3203 if ((vap->iv_flags & IEEE80211_F_DOTH) == 0)
3204 return EINVAL;
3205 vap->iv_flags_ext |= IEEE80211_FEXT_DFS;
3206 } else
3207 vap->iv_flags_ext &= ~IEEE80211_FEXT_DFS;
3208 break;
3209 case IEEE80211_IOC_DOTD:
3210 if (ireq->i_val)
3211 vap->iv_flags_ext |= IEEE80211_FEXT_DOTD;
3212 else
3213 vap->iv_flags_ext &= ~IEEE80211_FEXT_DOTD;
3214 if (vap->iv_opmode == IEEE80211_M_STA)
3215 error = ENETRESET;
3216 break;
3217 case IEEE80211_IOC_HTPROTMODE:
3218 if (ireq->i_val > IEEE80211_PROT_RTSCTS)
3219 return EINVAL;
3220 ic->ic_htprotmode = ireq->i_val ?
3221 IEEE80211_PROT_RTSCTS : IEEE80211_PROT_NONE;
3222 /* NB: if not operating in 11n this can wait */
3223 if (isvapht(vap))
3224 error = ERESTART;
3225 break;
3226 case IEEE80211_IOC_STA_VLAN:
3227 error = ieee80211_ioctl_setstavlan(vap, ireq);
3228 break;
3229 case IEEE80211_IOC_SMPS:
3230 if ((ireq->i_val &~ IEEE80211_HTCAP_SMPS) != 0 ||
3231 ireq->i_val == 0x0008) /* value of 2 is reserved */
3232 return EINVAL;
3233 if (ireq->i_val != IEEE80211_HTCAP_SMPS_OFF &&
3234 (vap->iv_htcaps & IEEE80211_HTC_SMPS) == 0)
3235 return EOPNOTSUPP;
3236 vap->iv_htcaps = (vap->iv_htcaps &~ IEEE80211_HTCAP_SMPS) |
3237 ireq->i_val;
3238 /* NB: if not operating in 11n this can wait */
3239 if (isvapht(vap))
3240 error = ERESTART;
3241 break;
3242 case IEEE80211_IOC_RIFS:
3243 if (ireq->i_val != 0) {
3244 if ((vap->iv_htcaps & IEEE80211_HTC_RIFS) == 0)
3245 return EOPNOTSUPP;
3246 vap->iv_flags_ht |= IEEE80211_FHT_RIFS;
3247 } else
3248 vap->iv_flags_ht &= ~IEEE80211_FHT_RIFS;
3249 /* NB: if not operating in 11n this can wait */
3250 if (isvapht(vap))
3251 error = ERESTART;
3252 break;
3253 default:
3254 error = ieee80211_ioctl_setdefault(vap, ireq);
3255 break;
3256 }
3257 /*
3258 * The convention is that ENETRESET means an operation
3259 * requires a complete re-initialization of the device (e.g.
3260 * changing something that affects the association state).
3261 * ERESTART means the request may be handled with only a
3262 * reload of the hardware state. We hand ERESTART requests
3263 * to the iv_reset callback so the driver can decide. If
3264 * a device does not fillin iv_reset then it defaults to one
3265 * that returns ENETRESET. Otherwise a driver may return
3266 * ENETRESET (in which case a full reset will be done) or
3267 * 0 to mean there's no need to do anything (e.g. when the
3268 * change has no effect on the driver/device).
3269 */
3270 if (error == ERESTART)
3271 error = IFNET_IS_UP_RUNNING(vap->iv_ifp) ?
3272 vap->iv_reset(vap, ireq->i_type) : 0;
3273 if (error == ENETRESET) {
3274 /* XXX need to re-think AUTO handling */
3275 if (IS_UP_AUTO(vap))
3276 ieee80211_init(vap);
3277 error = 0;
3278 }
3279 return error;
3280 }
3281
3282 int
ieee80211_ioctl(struct ifnet * ifp,u_long cmd,caddr_t data)3283 ieee80211_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
3284 {
3285 struct ieee80211vap *vap = ifp->if_softc;
3286 struct ieee80211com *ic = vap->iv_ic;
3287 int error = 0;
3288 struct ifreq *ifr;
3289 struct ifaddr *ifa; /* XXX */
3290
3291 switch (cmd) {
3292 case SIOCSIFFLAGS:
3293 IEEE80211_LOCK(ic);
3294 if ((ifp->if_flags ^ vap->iv_ifflags) & IFF_PROMISC)
3295 ieee80211_promisc(vap, ifp->if_flags & IFF_PROMISC);
3296 if ((ifp->if_flags ^ vap->iv_ifflags) & IFF_ALLMULTI)
3297 ieee80211_allmulti(vap, ifp->if_flags & IFF_ALLMULTI);
3298 vap->iv_ifflags = ifp->if_flags;
3299 if (ifp->if_flags & IFF_UP) {
3300 /*
3301 * Bring ourself up unless we're already operational.
3302 * If we're the first vap and the parent is not up
3303 * then it will automatically be brought up as a
3304 * side-effect of bringing ourself up.
3305 */
3306 if (vap->iv_state == IEEE80211_S_INIT)
3307 ieee80211_start_locked(vap);
3308 } else if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
3309 /*
3310 * Stop ourself. If we are the last vap to be
3311 * marked down the parent will also be taken down.
3312 */
3313 ieee80211_stop_locked(vap);
3314 }
3315 IEEE80211_UNLOCK(ic);
3316 /* Wait for parent ioctl handler if it was queued */
3317 ieee80211_waitfor_parent(ic);
3318 break;
3319 case SIOCADDMULTI:
3320 case SIOCDELMULTI:
3321 ieee80211_runtask(ic, &ic->ic_mcast_task);
3322 break;
3323 case SIOCSIFMEDIA:
3324 case SIOCGIFMEDIA:
3325 ifr = (struct ifreq *)data;
3326 error = ifmedia_ioctl(ifp, ifr, &vap->iv_media, cmd);
3327 break;
3328 case SIOCG80211:
3329 error = ieee80211_ioctl_get80211(vap, cmd,
3330 (struct ieee80211req *) data);
3331 break;
3332 case SIOCS80211:
3333 error = priv_check(curthread, PRIV_NET80211_MANAGE);
3334 if (error == 0)
3335 error = ieee80211_ioctl_set80211(vap, cmd,
3336 (struct ieee80211req *) data);
3337 break;
3338 case SIOCG80211STATS:
3339 ifr = (struct ifreq *)data;
3340 copyout(&vap->iv_stats, ifr->ifr_data, sizeof (vap->iv_stats));
3341 break;
3342 case SIOCSIFMTU:
3343 ifr = (struct ifreq *)data;
3344 if (!(IEEE80211_MTU_MIN <= ifr->ifr_mtu &&
3345 ifr->ifr_mtu <= IEEE80211_MTU_MAX))
3346 error = EINVAL;
3347 else
3348 ifp->if_mtu = ifr->ifr_mtu;
3349 break;
3350 case SIOCSIFADDR:
3351 /*
3352 * XXX Handle this directly so we can supress if_init calls.
3353 * XXX This should be done in ether_ioctl but for the moment
3354 * XXX there are too many other parts of the system that
3355 * XXX set IFF_UP and so supress if_init being called when
3356 * XXX it should be.
3357 */
3358 ifa = (struct ifaddr *) data;
3359 switch (ifa->ifa_addr->sa_family) {
3360 #ifdef INET
3361 case AF_INET:
3362 if ((ifp->if_flags & IFF_UP) == 0) {
3363 ifp->if_flags |= IFF_UP;
3364 ifp->if_init(ifp->if_softc);
3365 }
3366 arp_ifinit(ifp, ifa);
3367 break;
3368 #endif
3369 default:
3370 if ((ifp->if_flags & IFF_UP) == 0) {
3371 ifp->if_flags |= IFF_UP;
3372 ifp->if_init(ifp->if_softc);
3373 }
3374 break;
3375 }
3376 break;
3377 default:
3378 /*
3379 * Pass unknown ioctls first to the driver, and if it
3380 * returns ENOTTY, then to the generic Ethernet handler.
3381 */
3382 if (ic->ic_ioctl != NULL &&
3383 (error = ic->ic_ioctl(ic, cmd, data)) != ENOTTY)
3384 break;
3385 error = ether_ioctl(ifp, cmd, data);
3386 break;
3387 }
3388 return (error);
3389 }
3390