1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (c) 2001 Atsushi Onoe
5 * Copyright (c) 2002-2009 Sam Leffler, Errno Consulting
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29 #include <sys/cdefs.h>
30 __FBSDID("$FreeBSD$");
31
32 /*
33 * IEEE 802.11 ioctl support (FreeBSD-specific)
34 */
35
36 #include "opt_inet.h"
37 #include "opt_wlan.h"
38
39 #include <sys/endian.h>
40 #include <sys/param.h>
41 #include <sys/kernel.h>
42 #include <sys/malloc.h>
43 #include <sys/priv.h>
44 #include <sys/socket.h>
45 #include <sys/sockio.h>
46 #include <sys/systm.h>
47
48 #include <net/if.h>
49 #include <net/if_var.h>
50 #include <net/if_dl.h>
51 #include <net/if_media.h>
52 #include <net/ethernet.h>
53
54 #ifdef INET
55 #include <netinet/in.h>
56 #include <netinet/if_ether.h>
57 #endif
58
59 #include <net80211/ieee80211_var.h>
60 #include <net80211/ieee80211_ioctl.h>
61 #include <net80211/ieee80211_regdomain.h>
62 #include <net80211/ieee80211_input.h>
63
64 #define IS_UP_AUTO(_vap) \
65 (IFNET_IS_UP_RUNNING((_vap)->iv_ifp) && \
66 (_vap)->iv_roaming == IEEE80211_ROAMING_AUTO)
67
68 static const uint8_t zerobssid[IEEE80211_ADDR_LEN];
69 static struct ieee80211_channel *findchannel(struct ieee80211com *,
70 int ieee, int mode);
71 static int ieee80211_scanreq(struct ieee80211vap *,
72 struct ieee80211_scan_req *);
73
74 static int
ieee80211_ioctl_getkey(struct ieee80211vap * vap,struct ieee80211req * ireq)75 ieee80211_ioctl_getkey(struct ieee80211vap *vap, struct ieee80211req *ireq)
76 {
77 struct ieee80211com *ic = vap->iv_ic;
78 struct ieee80211_node *ni;
79 struct ieee80211req_key ik;
80 struct ieee80211_key *wk;
81 const struct ieee80211_cipher *cip;
82 u_int kid;
83 int error;
84
85 if (ireq->i_len != sizeof(ik))
86 return EINVAL;
87 error = copyin(ireq->i_data, &ik, sizeof(ik));
88 if (error)
89 return error;
90 kid = ik.ik_keyix;
91 if (kid == IEEE80211_KEYIX_NONE) {
92 ni = ieee80211_find_vap_node(&ic->ic_sta, vap, ik.ik_macaddr);
93 if (ni == NULL)
94 return ENOENT;
95 wk = &ni->ni_ucastkey;
96 } else {
97 if (kid >= IEEE80211_WEP_NKID)
98 return EINVAL;
99 wk = &vap->iv_nw_keys[kid];
100 IEEE80211_ADDR_COPY(&ik.ik_macaddr, vap->iv_bss->ni_macaddr);
101 ni = NULL;
102 }
103 cip = wk->wk_cipher;
104 ik.ik_type = cip->ic_cipher;
105 ik.ik_keylen = wk->wk_keylen;
106 ik.ik_flags = wk->wk_flags & (IEEE80211_KEY_XMIT | IEEE80211_KEY_RECV);
107 if (wk->wk_keyix == vap->iv_def_txkey)
108 ik.ik_flags |= IEEE80211_KEY_DEFAULT;
109 if (priv_check(curthread, PRIV_NET80211_GETKEY) == 0) {
110 /* NB: only root can read key data */
111 ik.ik_keyrsc = wk->wk_keyrsc[IEEE80211_NONQOS_TID];
112 ik.ik_keytsc = wk->wk_keytsc;
113 memcpy(ik.ik_keydata, wk->wk_key, wk->wk_keylen);
114 if (cip->ic_cipher == IEEE80211_CIPHER_TKIP) {
115 memcpy(ik.ik_keydata+wk->wk_keylen,
116 wk->wk_key + IEEE80211_KEYBUF_SIZE,
117 IEEE80211_MICBUF_SIZE);
118 ik.ik_keylen += IEEE80211_MICBUF_SIZE;
119 }
120 } else {
121 ik.ik_keyrsc = 0;
122 ik.ik_keytsc = 0;
123 memset(ik.ik_keydata, 0, sizeof(ik.ik_keydata));
124 }
125 if (ni != NULL)
126 ieee80211_free_node(ni);
127 return copyout(&ik, ireq->i_data, sizeof(ik));
128 }
129
130 static int
ieee80211_ioctl_getchanlist(struct ieee80211vap * vap,struct ieee80211req * ireq)131 ieee80211_ioctl_getchanlist(struct ieee80211vap *vap, struct ieee80211req *ireq)
132 {
133 struct ieee80211com *ic = vap->iv_ic;
134
135 if (sizeof(ic->ic_chan_active) < ireq->i_len)
136 ireq->i_len = sizeof(ic->ic_chan_active);
137 return copyout(&ic->ic_chan_active, ireq->i_data, ireq->i_len);
138 }
139
140 static int
ieee80211_ioctl_getchaninfo(struct ieee80211vap * vap,struct ieee80211req * ireq)141 ieee80211_ioctl_getchaninfo(struct ieee80211vap *vap, struct ieee80211req *ireq)
142 {
143 struct ieee80211com *ic = vap->iv_ic;
144 uint32_t space;
145
146 space = __offsetof(struct ieee80211req_chaninfo,
147 ic_chans[ic->ic_nchans]);
148 if (space > ireq->i_len)
149 space = ireq->i_len;
150 /* XXX assumes compatible layout */
151 return copyout(&ic->ic_nchans, ireq->i_data, space);
152 }
153
154 static int
ieee80211_ioctl_getwpaie(struct ieee80211vap * vap,struct ieee80211req * ireq,int req)155 ieee80211_ioctl_getwpaie(struct ieee80211vap *vap,
156 struct ieee80211req *ireq, int req)
157 {
158 struct ieee80211_node *ni;
159 struct ieee80211req_wpaie2 *wpaie;
160 int error;
161
162 if (ireq->i_len < IEEE80211_ADDR_LEN)
163 return EINVAL;
164 wpaie = IEEE80211_MALLOC(sizeof(*wpaie), M_TEMP,
165 IEEE80211_M_NOWAIT | IEEE80211_M_ZERO);
166 if (wpaie == NULL)
167 return ENOMEM;
168 error = copyin(ireq->i_data, wpaie->wpa_macaddr, IEEE80211_ADDR_LEN);
169 if (error != 0)
170 goto bad;
171 ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap, wpaie->wpa_macaddr);
172 if (ni == NULL) {
173 error = ENOENT;
174 goto bad;
175 }
176 if (ni->ni_ies.wpa_ie != NULL) {
177 int ielen = ni->ni_ies.wpa_ie[1] + 2;
178 if (ielen > sizeof(wpaie->wpa_ie))
179 ielen = sizeof(wpaie->wpa_ie);
180 memcpy(wpaie->wpa_ie, ni->ni_ies.wpa_ie, ielen);
181 }
182 if (req == IEEE80211_IOC_WPAIE2) {
183 if (ni->ni_ies.rsn_ie != NULL) {
184 int ielen = ni->ni_ies.rsn_ie[1] + 2;
185 if (ielen > sizeof(wpaie->rsn_ie))
186 ielen = sizeof(wpaie->rsn_ie);
187 memcpy(wpaie->rsn_ie, ni->ni_ies.rsn_ie, ielen);
188 }
189 if (ireq->i_len > sizeof(struct ieee80211req_wpaie2))
190 ireq->i_len = sizeof(struct ieee80211req_wpaie2);
191 } else {
192 /* compatibility op, may overwrite wpa ie */
193 /* XXX check ic_flags? */
194 if (ni->ni_ies.rsn_ie != NULL) {
195 int ielen = ni->ni_ies.rsn_ie[1] + 2;
196 if (ielen > sizeof(wpaie->wpa_ie))
197 ielen = sizeof(wpaie->wpa_ie);
198 memcpy(wpaie->wpa_ie, ni->ni_ies.rsn_ie, ielen);
199 }
200 if (ireq->i_len > sizeof(struct ieee80211req_wpaie))
201 ireq->i_len = sizeof(struct ieee80211req_wpaie);
202 }
203 ieee80211_free_node(ni);
204 error = copyout(wpaie, ireq->i_data, ireq->i_len);
205 bad:
206 IEEE80211_FREE(wpaie, M_TEMP);
207 return error;
208 }
209
210 static int
ieee80211_ioctl_getstastats(struct ieee80211vap * vap,struct ieee80211req * ireq)211 ieee80211_ioctl_getstastats(struct ieee80211vap *vap, struct ieee80211req *ireq)
212 {
213 struct ieee80211_node *ni;
214 uint8_t macaddr[IEEE80211_ADDR_LEN];
215 const size_t off = __offsetof(struct ieee80211req_sta_stats, is_stats);
216 int error;
217
218 if (ireq->i_len < off)
219 return EINVAL;
220 error = copyin(ireq->i_data, macaddr, IEEE80211_ADDR_LEN);
221 if (error != 0)
222 return error;
223 ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap, macaddr);
224 if (ni == NULL)
225 return ENOENT;
226 if (ireq->i_len > sizeof(struct ieee80211req_sta_stats))
227 ireq->i_len = sizeof(struct ieee80211req_sta_stats);
228 /* NB: copy out only the statistics */
229 error = copyout(&ni->ni_stats, (uint8_t *) ireq->i_data + off,
230 ireq->i_len - off);
231 ieee80211_free_node(ni);
232 return error;
233 }
234
235 struct scanreq {
236 struct ieee80211req_scan_result *sr;
237 size_t space;
238 };
239
240 static size_t
scan_space(const struct ieee80211_scan_entry * se,int * ielen)241 scan_space(const struct ieee80211_scan_entry *se, int *ielen)
242 {
243 size_t len;
244
245 *ielen = se->se_ies.len;
246 /*
247 * NB: ie's can be no more than 255 bytes and the max 802.11
248 * packet is <3Kbytes so we are sure this doesn't overflow
249 * 16-bits; if this is a concern we can drop the ie's.
250 */
251 len = sizeof(struct ieee80211req_scan_result) + se->se_ssid[1] +
252 se->se_meshid[1] + *ielen;
253 return roundup(len, sizeof(uint32_t));
254 }
255
256 static void
get_scan_space(void * arg,const struct ieee80211_scan_entry * se)257 get_scan_space(void *arg, const struct ieee80211_scan_entry *se)
258 {
259 struct scanreq *req = arg;
260 int ielen;
261
262 req->space += scan_space(se, &ielen);
263 }
264
265 static void
get_scan_result(void * arg,const struct ieee80211_scan_entry * se)266 get_scan_result(void *arg, const struct ieee80211_scan_entry *se)
267 {
268 struct scanreq *req = arg;
269 struct ieee80211req_scan_result *sr;
270 int ielen, len, nr, nxr;
271 uint8_t *cp;
272
273 len = scan_space(se, &ielen);
274 if (len > req->space)
275 return;
276
277 sr = req->sr;
278 KASSERT(len <= 65535 && ielen <= 65535,
279 ("len %u ssid %u ie %u", len, se->se_ssid[1], ielen));
280 sr->isr_len = len;
281 sr->isr_ie_off = sizeof(struct ieee80211req_scan_result);
282 sr->isr_ie_len = ielen;
283 sr->isr_freq = se->se_chan->ic_freq;
284 sr->isr_flags = se->se_chan->ic_flags;
285 sr->isr_rssi = se->se_rssi;
286 sr->isr_noise = se->se_noise;
287 sr->isr_intval = se->se_intval;
288 sr->isr_capinfo = se->se_capinfo;
289 sr->isr_erp = se->se_erp;
290 IEEE80211_ADDR_COPY(sr->isr_bssid, se->se_bssid);
291 nr = min(se->se_rates[1], IEEE80211_RATE_MAXSIZE);
292 memcpy(sr->isr_rates, se->se_rates+2, nr);
293 nxr = min(se->se_xrates[1], IEEE80211_RATE_MAXSIZE - nr);
294 memcpy(sr->isr_rates+nr, se->se_xrates+2, nxr);
295 sr->isr_nrates = nr + nxr;
296
297 /* copy SSID */
298 sr->isr_ssid_len = se->se_ssid[1];
299 cp = ((uint8_t *)sr) + sr->isr_ie_off;
300 memcpy(cp, se->se_ssid+2, sr->isr_ssid_len);
301
302 /* copy mesh id */
303 cp += sr->isr_ssid_len;
304 sr->isr_meshid_len = se->se_meshid[1];
305 memcpy(cp, se->se_meshid+2, sr->isr_meshid_len);
306 cp += sr->isr_meshid_len;
307
308 if (ielen)
309 memcpy(cp, se->se_ies.data, ielen);
310
311 req->space -= len;
312 req->sr = (struct ieee80211req_scan_result *)(((uint8_t *)sr) + len);
313 }
314
315 static int
ieee80211_ioctl_getscanresults(struct ieee80211vap * vap,struct ieee80211req * ireq)316 ieee80211_ioctl_getscanresults(struct ieee80211vap *vap,
317 struct ieee80211req *ireq)
318 {
319 struct scanreq req;
320 int error;
321
322 if (ireq->i_len < sizeof(struct scanreq))
323 return EFAULT;
324
325 error = 0;
326 req.space = 0;
327 ieee80211_scan_iterate(vap, get_scan_space, &req);
328 if (req.space > ireq->i_len)
329 req.space = ireq->i_len;
330 if (req.space > 0) {
331 uint32_t space;
332 void *p;
333
334 space = req.space;
335 /* XXX M_WAITOK after driver lock released */
336 p = IEEE80211_MALLOC(space, M_TEMP,
337 IEEE80211_M_NOWAIT | IEEE80211_M_ZERO);
338 if (p == NULL)
339 return ENOMEM;
340 req.sr = p;
341 ieee80211_scan_iterate(vap, get_scan_result, &req);
342 ireq->i_len = space - req.space;
343 error = copyout(p, ireq->i_data, ireq->i_len);
344 IEEE80211_FREE(p, M_TEMP);
345 } else
346 ireq->i_len = 0;
347
348 return error;
349 }
350
351 struct stainforeq {
352 struct ieee80211req_sta_info *si;
353 size_t space;
354 };
355
356 static size_t
sta_space(const struct ieee80211_node * ni,size_t * ielen)357 sta_space(const struct ieee80211_node *ni, size_t *ielen)
358 {
359 *ielen = ni->ni_ies.len;
360 return roundup(sizeof(struct ieee80211req_sta_info) + *ielen,
361 sizeof(uint32_t));
362 }
363
364 static void
get_sta_space(void * arg,struct ieee80211_node * ni)365 get_sta_space(void *arg, struct ieee80211_node *ni)
366 {
367 struct stainforeq *req = arg;
368 size_t ielen;
369
370 if (ni->ni_vap->iv_opmode == IEEE80211_M_HOSTAP &&
371 ni->ni_associd == 0) /* only associated stations */
372 return;
373 req->space += sta_space(ni, &ielen);
374 }
375
376 static void
get_sta_info(void * arg,struct ieee80211_node * ni)377 get_sta_info(void *arg, struct ieee80211_node *ni)
378 {
379 struct stainforeq *req = arg;
380 struct ieee80211vap *vap = ni->ni_vap;
381 struct ieee80211req_sta_info *si;
382 size_t ielen, len;
383 uint8_t *cp;
384
385 if (vap->iv_opmode == IEEE80211_M_HOSTAP &&
386 ni->ni_associd == 0) /* only associated stations */
387 return;
388 if (ni->ni_chan == IEEE80211_CHAN_ANYC) /* XXX bogus entry */
389 return;
390 len = sta_space(ni, &ielen);
391 if (len > req->space)
392 return;
393 si = req->si;
394 si->isi_len = len;
395 si->isi_ie_off = sizeof(struct ieee80211req_sta_info);
396 si->isi_ie_len = ielen;
397 si->isi_freq = ni->ni_chan->ic_freq;
398 si->isi_flags = ni->ni_chan->ic_flags;
399 si->isi_state = ni->ni_flags;
400 si->isi_authmode = ni->ni_authmode;
401 vap->iv_ic->ic_node_getsignal(ni, &si->isi_rssi, &si->isi_noise);
402 vap->iv_ic->ic_node_getmimoinfo(ni, &si->isi_mimo);
403 si->isi_capinfo = ni->ni_capinfo;
404 si->isi_erp = ni->ni_erp;
405 IEEE80211_ADDR_COPY(si->isi_macaddr, ni->ni_macaddr);
406 si->isi_nrates = ni->ni_rates.rs_nrates;
407 if (si->isi_nrates > 15)
408 si->isi_nrates = 15;
409 memcpy(si->isi_rates, ni->ni_rates.rs_rates, si->isi_nrates);
410 si->isi_txrate = ni->ni_txrate;
411 if (si->isi_txrate & IEEE80211_RATE_MCS) {
412 const struct ieee80211_mcs_rates *mcs =
413 &ieee80211_htrates[ni->ni_txrate &~ IEEE80211_RATE_MCS];
414 if (IEEE80211_IS_CHAN_HT40(ni->ni_chan)) {
415 if (ni->ni_flags & IEEE80211_NODE_SGI40)
416 si->isi_txmbps = mcs->ht40_rate_800ns;
417 else
418 si->isi_txmbps = mcs->ht40_rate_400ns;
419 } else {
420 if (ni->ni_flags & IEEE80211_NODE_SGI20)
421 si->isi_txmbps = mcs->ht20_rate_800ns;
422 else
423 si->isi_txmbps = mcs->ht20_rate_400ns;
424 }
425 } else
426 si->isi_txmbps = si->isi_txrate;
427 si->isi_associd = ni->ni_associd;
428 si->isi_txpower = ni->ni_txpower;
429 si->isi_vlan = ni->ni_vlan;
430 if (ni->ni_flags & IEEE80211_NODE_QOS) {
431 memcpy(si->isi_txseqs, ni->ni_txseqs, sizeof(ni->ni_txseqs));
432 memcpy(si->isi_rxseqs, ni->ni_rxseqs, sizeof(ni->ni_rxseqs));
433 } else {
434 si->isi_txseqs[0] = ni->ni_txseqs[IEEE80211_NONQOS_TID];
435 si->isi_rxseqs[0] = ni->ni_rxseqs[IEEE80211_NONQOS_TID];
436 }
437 /* NB: leave all cases in case we relax ni_associd == 0 check */
438 if (ieee80211_node_is_authorized(ni))
439 si->isi_inact = vap->iv_inact_run;
440 else if (ni->ni_associd != 0 ||
441 (vap->iv_opmode == IEEE80211_M_WDS &&
442 (vap->iv_flags_ext & IEEE80211_FEXT_WDSLEGACY)))
443 si->isi_inact = vap->iv_inact_auth;
444 else
445 si->isi_inact = vap->iv_inact_init;
446 si->isi_inact = (si->isi_inact - ni->ni_inact) * IEEE80211_INACT_WAIT;
447 si->isi_localid = ni->ni_mllid;
448 si->isi_peerid = ni->ni_mlpid;
449 si->isi_peerstate = ni->ni_mlstate;
450
451 if (ielen) {
452 cp = ((uint8_t *)si) + si->isi_ie_off;
453 memcpy(cp, ni->ni_ies.data, ielen);
454 }
455
456 req->si = (struct ieee80211req_sta_info *)(((uint8_t *)si) + len);
457 req->space -= len;
458 }
459
460 static int
getstainfo_common(struct ieee80211vap * vap,struct ieee80211req * ireq,struct ieee80211_node * ni,size_t off)461 getstainfo_common(struct ieee80211vap *vap, struct ieee80211req *ireq,
462 struct ieee80211_node *ni, size_t off)
463 {
464 struct ieee80211com *ic = vap->iv_ic;
465 struct stainforeq req;
466 size_t space;
467 void *p;
468 int error;
469
470 error = 0;
471 req.space = 0;
472 if (ni == NULL) {
473 ieee80211_iterate_nodes_vap(&ic->ic_sta, vap, get_sta_space,
474 &req);
475 } else
476 get_sta_space(&req, ni);
477 if (req.space > ireq->i_len)
478 req.space = ireq->i_len;
479 if (req.space > 0) {
480 space = req.space;
481 /* XXX M_WAITOK after driver lock released */
482 p = IEEE80211_MALLOC(space, M_TEMP,
483 IEEE80211_M_NOWAIT | IEEE80211_M_ZERO);
484 if (p == NULL) {
485 error = ENOMEM;
486 goto bad;
487 }
488 req.si = p;
489 if (ni == NULL) {
490 ieee80211_iterate_nodes_vap(&ic->ic_sta, vap,
491 get_sta_info, &req);
492 } else
493 get_sta_info(&req, ni);
494 ireq->i_len = space - req.space;
495 error = copyout(p, (uint8_t *) ireq->i_data+off, ireq->i_len);
496 IEEE80211_FREE(p, M_TEMP);
497 } else
498 ireq->i_len = 0;
499 bad:
500 if (ni != NULL)
501 ieee80211_free_node(ni);
502 return error;
503 }
504
505 static int
ieee80211_ioctl_getstainfo(struct ieee80211vap * vap,struct ieee80211req * ireq)506 ieee80211_ioctl_getstainfo(struct ieee80211vap *vap, struct ieee80211req *ireq)
507 {
508 uint8_t macaddr[IEEE80211_ADDR_LEN];
509 const size_t off = __offsetof(struct ieee80211req_sta_req, info);
510 struct ieee80211_node *ni;
511 int error;
512
513 if (ireq->i_len < sizeof(struct ieee80211req_sta_req))
514 return EFAULT;
515 error = copyin(ireq->i_data, macaddr, IEEE80211_ADDR_LEN);
516 if (error != 0)
517 return error;
518 if (IEEE80211_ADDR_EQ(macaddr, vap->iv_ifp->if_broadcastaddr)) {
519 ni = NULL;
520 } else {
521 ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap, macaddr);
522 if (ni == NULL)
523 return ENOENT;
524 }
525 return getstainfo_common(vap, ireq, ni, off);
526 }
527
528 static int
ieee80211_ioctl_getstatxpow(struct ieee80211vap * vap,struct ieee80211req * ireq)529 ieee80211_ioctl_getstatxpow(struct ieee80211vap *vap, struct ieee80211req *ireq)
530 {
531 struct ieee80211_node *ni;
532 struct ieee80211req_sta_txpow txpow;
533 int error;
534
535 if (ireq->i_len != sizeof(txpow))
536 return EINVAL;
537 error = copyin(ireq->i_data, &txpow, sizeof(txpow));
538 if (error != 0)
539 return error;
540 ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap, txpow.it_macaddr);
541 if (ni == NULL)
542 return ENOENT;
543 txpow.it_txpow = ni->ni_txpower;
544 error = copyout(&txpow, ireq->i_data, sizeof(txpow));
545 ieee80211_free_node(ni);
546 return error;
547 }
548
549 static int
ieee80211_ioctl_getwmeparam(struct ieee80211vap * vap,struct ieee80211req * ireq)550 ieee80211_ioctl_getwmeparam(struct ieee80211vap *vap, struct ieee80211req *ireq)
551 {
552 struct ieee80211com *ic = vap->iv_ic;
553 struct ieee80211_wme_state *wme = &ic->ic_wme;
554 struct wmeParams *wmep;
555 int ac;
556
557 if ((ic->ic_caps & IEEE80211_C_WME) == 0)
558 return EINVAL;
559
560 ac = (ireq->i_len & IEEE80211_WMEPARAM_VAL);
561 if (ac >= WME_NUM_AC)
562 ac = WME_AC_BE;
563 if (ireq->i_len & IEEE80211_WMEPARAM_BSS)
564 wmep = &wme->wme_wmeBssChanParams.cap_wmeParams[ac];
565 else
566 wmep = &wme->wme_wmeChanParams.cap_wmeParams[ac];
567 switch (ireq->i_type) {
568 case IEEE80211_IOC_WME_CWMIN: /* WME: CWmin */
569 ireq->i_val = wmep->wmep_logcwmin;
570 break;
571 case IEEE80211_IOC_WME_CWMAX: /* WME: CWmax */
572 ireq->i_val = wmep->wmep_logcwmax;
573 break;
574 case IEEE80211_IOC_WME_AIFS: /* WME: AIFS */
575 ireq->i_val = wmep->wmep_aifsn;
576 break;
577 case IEEE80211_IOC_WME_TXOPLIMIT: /* WME: txops limit */
578 ireq->i_val = wmep->wmep_txopLimit;
579 break;
580 case IEEE80211_IOC_WME_ACM: /* WME: ACM (bss only) */
581 wmep = &wme->wme_wmeBssChanParams.cap_wmeParams[ac];
582 ireq->i_val = wmep->wmep_acm;
583 break;
584 case IEEE80211_IOC_WME_ACKPOLICY: /* WME: ACK policy (!bss only)*/
585 wmep = &wme->wme_wmeChanParams.cap_wmeParams[ac];
586 ireq->i_val = !wmep->wmep_noackPolicy;
587 break;
588 }
589 return 0;
590 }
591
592 static int
ieee80211_ioctl_getmaccmd(struct ieee80211vap * vap,struct ieee80211req * ireq)593 ieee80211_ioctl_getmaccmd(struct ieee80211vap *vap, struct ieee80211req *ireq)
594 {
595 const struct ieee80211_aclator *acl = vap->iv_acl;
596
597 return (acl == NULL ? EINVAL : acl->iac_getioctl(vap, ireq));
598 }
599
600 static int
ieee80211_ioctl_getcurchan(struct ieee80211vap * vap,struct ieee80211req * ireq)601 ieee80211_ioctl_getcurchan(struct ieee80211vap *vap, struct ieee80211req *ireq)
602 {
603 struct ieee80211com *ic = vap->iv_ic;
604 struct ieee80211_channel *c;
605
606 if (ireq->i_len != sizeof(struct ieee80211_channel))
607 return EINVAL;
608 /*
609 * vap's may have different operating channels when HT is
610 * in use. When in RUN state report the vap-specific channel.
611 * Otherwise return curchan.
612 */
613 if (vap->iv_state == IEEE80211_S_RUN || vap->iv_state == IEEE80211_S_SLEEP)
614 c = vap->iv_bss->ni_chan;
615 else
616 c = ic->ic_curchan;
617 return copyout(c, ireq->i_data, sizeof(*c));
618 }
619
620 static int
getappie(const struct ieee80211_appie * aie,struct ieee80211req * ireq)621 getappie(const struct ieee80211_appie *aie, struct ieee80211req *ireq)
622 {
623 if (aie == NULL)
624 return EINVAL;
625 /* NB: truncate, caller can check length */
626 if (ireq->i_len > aie->ie_len)
627 ireq->i_len = aie->ie_len;
628 return copyout(aie->ie_data, ireq->i_data, ireq->i_len);
629 }
630
631 static int
ieee80211_ioctl_getappie(struct ieee80211vap * vap,struct ieee80211req * ireq)632 ieee80211_ioctl_getappie(struct ieee80211vap *vap, struct ieee80211req *ireq)
633 {
634 uint8_t fc0;
635
636 fc0 = ireq->i_val & 0xff;
637 if ((fc0 & IEEE80211_FC0_TYPE_MASK) != IEEE80211_FC0_TYPE_MGT)
638 return EINVAL;
639 /* NB: could check iv_opmode and reject but hardly worth the effort */
640 switch (fc0 & IEEE80211_FC0_SUBTYPE_MASK) {
641 case IEEE80211_FC0_SUBTYPE_BEACON:
642 return getappie(vap->iv_appie_beacon, ireq);
643 case IEEE80211_FC0_SUBTYPE_PROBE_RESP:
644 return getappie(vap->iv_appie_proberesp, ireq);
645 case IEEE80211_FC0_SUBTYPE_ASSOC_RESP:
646 return getappie(vap->iv_appie_assocresp, ireq);
647 case IEEE80211_FC0_SUBTYPE_PROBE_REQ:
648 return getappie(vap->iv_appie_probereq, ireq);
649 case IEEE80211_FC0_SUBTYPE_ASSOC_REQ:
650 return getappie(vap->iv_appie_assocreq, ireq);
651 case IEEE80211_FC0_SUBTYPE_BEACON|IEEE80211_FC0_SUBTYPE_PROBE_RESP:
652 return getappie(vap->iv_appie_wpa, ireq);
653 }
654 return EINVAL;
655 }
656
657 static int
ieee80211_ioctl_getregdomain(struct ieee80211vap * vap,const struct ieee80211req * ireq)658 ieee80211_ioctl_getregdomain(struct ieee80211vap *vap,
659 const struct ieee80211req *ireq)
660 {
661 struct ieee80211com *ic = vap->iv_ic;
662
663 if (ireq->i_len != sizeof(ic->ic_regdomain))
664 return EINVAL;
665 return copyout(&ic->ic_regdomain, ireq->i_data,
666 sizeof(ic->ic_regdomain));
667 }
668
669 static int
ieee80211_ioctl_getroam(struct ieee80211vap * vap,const struct ieee80211req * ireq)670 ieee80211_ioctl_getroam(struct ieee80211vap *vap,
671 const struct ieee80211req *ireq)
672 {
673 size_t len = ireq->i_len;
674 /* NB: accept short requests for backwards compat */
675 if (len > sizeof(vap->iv_roamparms))
676 len = sizeof(vap->iv_roamparms);
677 return copyout(vap->iv_roamparms, ireq->i_data, len);
678 }
679
680 static int
ieee80211_ioctl_gettxparams(struct ieee80211vap * vap,const struct ieee80211req * ireq)681 ieee80211_ioctl_gettxparams(struct ieee80211vap *vap,
682 const struct ieee80211req *ireq)
683 {
684 size_t len = ireq->i_len;
685 /* NB: accept short requests for backwards compat */
686 if (len > sizeof(vap->iv_txparms))
687 len = sizeof(vap->iv_txparms);
688 return copyout(vap->iv_txparms, ireq->i_data, len);
689 }
690
691 static int
ieee80211_ioctl_getdevcaps(struct ieee80211com * ic,const struct ieee80211req * ireq)692 ieee80211_ioctl_getdevcaps(struct ieee80211com *ic,
693 const struct ieee80211req *ireq)
694 {
695 struct ieee80211_devcaps_req *dc;
696 struct ieee80211req_chaninfo *ci;
697 int maxchans, error;
698
699 maxchans = 1 + ((ireq->i_len - sizeof(struct ieee80211_devcaps_req)) /
700 sizeof(struct ieee80211_channel));
701 /* NB: require 1 so we know ic_nchans is accessible */
702 if (maxchans < 1)
703 return EINVAL;
704 /* constrain max request size, 2K channels is ~24Kbytes */
705 if (maxchans > 2048)
706 maxchans = 2048;
707 dc = (struct ieee80211_devcaps_req *)
708 IEEE80211_MALLOC(IEEE80211_DEVCAPS_SIZE(maxchans), M_TEMP,
709 IEEE80211_M_NOWAIT | IEEE80211_M_ZERO);
710 if (dc == NULL)
711 return ENOMEM;
712 dc->dc_drivercaps = ic->ic_caps;
713 dc->dc_cryptocaps = ic->ic_cryptocaps;
714 dc->dc_htcaps = ic->ic_htcaps;
715 dc->dc_vhtcaps = ic->ic_vhtcaps;
716 ci = &dc->dc_chaninfo;
717 ic->ic_getradiocaps(ic, maxchans, &ci->ic_nchans, ci->ic_chans);
718 KASSERT(ci->ic_nchans <= maxchans,
719 ("nchans %d maxchans %d", ci->ic_nchans, maxchans));
720 ieee80211_sort_channels(ci->ic_chans, ci->ic_nchans);
721 error = copyout(dc, ireq->i_data, IEEE80211_DEVCAPS_SPACE(dc));
722 IEEE80211_FREE(dc, M_TEMP);
723 return error;
724 }
725
726 static int
ieee80211_ioctl_getstavlan(struct ieee80211vap * vap,struct ieee80211req * ireq)727 ieee80211_ioctl_getstavlan(struct ieee80211vap *vap, struct ieee80211req *ireq)
728 {
729 struct ieee80211_node *ni;
730 struct ieee80211req_sta_vlan vlan;
731 int error;
732
733 if (ireq->i_len != sizeof(vlan))
734 return EINVAL;
735 error = copyin(ireq->i_data, &vlan, sizeof(vlan));
736 if (error != 0)
737 return error;
738 if (!IEEE80211_ADDR_EQ(vlan.sv_macaddr, zerobssid)) {
739 ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap,
740 vlan.sv_macaddr);
741 if (ni == NULL)
742 return ENOENT;
743 } else
744 ni = ieee80211_ref_node(vap->iv_bss);
745 vlan.sv_vlan = ni->ni_vlan;
746 error = copyout(&vlan, ireq->i_data, sizeof(vlan));
747 ieee80211_free_node(ni);
748 return error;
749 }
750
751 /*
752 * Dummy ioctl get handler so the linker set is defined.
753 */
754 static int
dummy_ioctl_get(struct ieee80211vap * vap,struct ieee80211req * ireq)755 dummy_ioctl_get(struct ieee80211vap *vap, struct ieee80211req *ireq)
756 {
757 return ENOSYS;
758 }
759 IEEE80211_IOCTL_GET(dummy, dummy_ioctl_get);
760
761 static int
ieee80211_ioctl_getdefault(struct ieee80211vap * vap,struct ieee80211req * ireq)762 ieee80211_ioctl_getdefault(struct ieee80211vap *vap, struct ieee80211req *ireq)
763 {
764 ieee80211_ioctl_getfunc * const *get;
765 int error;
766
767 SET_FOREACH(get, ieee80211_ioctl_getset) {
768 error = (*get)(vap, ireq);
769 if (error != ENOSYS)
770 return error;
771 }
772 return EINVAL;
773 }
774
775 static int
ieee80211_ioctl_get80211(struct ieee80211vap * vap,u_long cmd,struct ieee80211req * ireq)776 ieee80211_ioctl_get80211(struct ieee80211vap *vap, u_long cmd,
777 struct ieee80211req *ireq)
778 {
779 #define MS(_v, _f) (((_v) & _f) >> _f##_S)
780 struct ieee80211com *ic = vap->iv_ic;
781 u_int kid, len;
782 uint8_t tmpkey[IEEE80211_KEYBUF_SIZE];
783 char tmpssid[IEEE80211_NWID_LEN];
784 int error = 0;
785
786 switch (ireq->i_type) {
787 case IEEE80211_IOC_SSID:
788 switch (vap->iv_state) {
789 case IEEE80211_S_INIT:
790 case IEEE80211_S_SCAN:
791 ireq->i_len = vap->iv_des_ssid[0].len;
792 memcpy(tmpssid, vap->iv_des_ssid[0].ssid, ireq->i_len);
793 break;
794 default:
795 ireq->i_len = vap->iv_bss->ni_esslen;
796 memcpy(tmpssid, vap->iv_bss->ni_essid, ireq->i_len);
797 break;
798 }
799 error = copyout(tmpssid, ireq->i_data, ireq->i_len);
800 break;
801 case IEEE80211_IOC_NUMSSIDS:
802 ireq->i_val = 1;
803 break;
804 case IEEE80211_IOC_WEP:
805 if ((vap->iv_flags & IEEE80211_F_PRIVACY) == 0)
806 ireq->i_val = IEEE80211_WEP_OFF;
807 else if (vap->iv_flags & IEEE80211_F_DROPUNENC)
808 ireq->i_val = IEEE80211_WEP_ON;
809 else
810 ireq->i_val = IEEE80211_WEP_MIXED;
811 break;
812 case IEEE80211_IOC_WEPKEY:
813 kid = (u_int) ireq->i_val;
814 if (kid >= IEEE80211_WEP_NKID)
815 return EINVAL;
816 len = (u_int) vap->iv_nw_keys[kid].wk_keylen;
817 /* NB: only root can read WEP keys */
818 if (priv_check(curthread, PRIV_NET80211_GETKEY) == 0) {
819 bcopy(vap->iv_nw_keys[kid].wk_key, tmpkey, len);
820 } else {
821 bzero(tmpkey, len);
822 }
823 ireq->i_len = len;
824 error = copyout(tmpkey, ireq->i_data, len);
825 break;
826 case IEEE80211_IOC_NUMWEPKEYS:
827 ireq->i_val = IEEE80211_WEP_NKID;
828 break;
829 case IEEE80211_IOC_WEPTXKEY:
830 ireq->i_val = vap->iv_def_txkey;
831 break;
832 case IEEE80211_IOC_AUTHMODE:
833 if (vap->iv_flags & IEEE80211_F_WPA)
834 ireq->i_val = IEEE80211_AUTH_WPA;
835 else
836 ireq->i_val = vap->iv_bss->ni_authmode;
837 break;
838 case IEEE80211_IOC_CHANNEL:
839 ireq->i_val = ieee80211_chan2ieee(ic, ic->ic_curchan);
840 break;
841 case IEEE80211_IOC_POWERSAVE:
842 if (vap->iv_flags & IEEE80211_F_PMGTON)
843 ireq->i_val = IEEE80211_POWERSAVE_ON;
844 else
845 ireq->i_val = IEEE80211_POWERSAVE_OFF;
846 break;
847 case IEEE80211_IOC_POWERSAVESLEEP:
848 ireq->i_val = ic->ic_lintval;
849 break;
850 case IEEE80211_IOC_RTSTHRESHOLD:
851 ireq->i_val = vap->iv_rtsthreshold;
852 break;
853 case IEEE80211_IOC_PROTMODE:
854 ireq->i_val = ic->ic_protmode;
855 break;
856 case IEEE80211_IOC_TXPOWER:
857 /*
858 * Tx power limit is the min of max regulatory
859 * power, any user-set limit, and the max the
860 * radio can do.
861 *
862 * TODO: methodize this
863 */
864 ireq->i_val = 2*ic->ic_curchan->ic_maxregpower;
865 if (ireq->i_val > ic->ic_txpowlimit)
866 ireq->i_val = ic->ic_txpowlimit;
867 if (ireq->i_val > ic->ic_curchan->ic_maxpower)
868 ireq->i_val = ic->ic_curchan->ic_maxpower;
869 break;
870 case IEEE80211_IOC_WPA:
871 switch (vap->iv_flags & IEEE80211_F_WPA) {
872 case IEEE80211_F_WPA1:
873 ireq->i_val = 1;
874 break;
875 case IEEE80211_F_WPA2:
876 ireq->i_val = 2;
877 break;
878 case IEEE80211_F_WPA1 | IEEE80211_F_WPA2:
879 ireq->i_val = 3;
880 break;
881 default:
882 ireq->i_val = 0;
883 break;
884 }
885 break;
886 case IEEE80211_IOC_CHANLIST:
887 error = ieee80211_ioctl_getchanlist(vap, ireq);
888 break;
889 case IEEE80211_IOC_ROAMING:
890 ireq->i_val = vap->iv_roaming;
891 break;
892 case IEEE80211_IOC_PRIVACY:
893 ireq->i_val = (vap->iv_flags & IEEE80211_F_PRIVACY) != 0;
894 break;
895 case IEEE80211_IOC_DROPUNENCRYPTED:
896 ireq->i_val = (vap->iv_flags & IEEE80211_F_DROPUNENC) != 0;
897 break;
898 case IEEE80211_IOC_COUNTERMEASURES:
899 ireq->i_val = (vap->iv_flags & IEEE80211_F_COUNTERM) != 0;
900 break;
901 case IEEE80211_IOC_WME:
902 ireq->i_val = (vap->iv_flags & IEEE80211_F_WME) != 0;
903 break;
904 case IEEE80211_IOC_HIDESSID:
905 ireq->i_val = (vap->iv_flags & IEEE80211_F_HIDESSID) != 0;
906 break;
907 case IEEE80211_IOC_APBRIDGE:
908 ireq->i_val = (vap->iv_flags & IEEE80211_F_NOBRIDGE) == 0;
909 break;
910 case IEEE80211_IOC_WPAKEY:
911 error = ieee80211_ioctl_getkey(vap, ireq);
912 break;
913 case IEEE80211_IOC_CHANINFO:
914 error = ieee80211_ioctl_getchaninfo(vap, ireq);
915 break;
916 case IEEE80211_IOC_BSSID:
917 if (ireq->i_len != IEEE80211_ADDR_LEN)
918 return EINVAL;
919 if (vap->iv_state == IEEE80211_S_RUN || vap->iv_state == IEEE80211_S_SLEEP) {
920 error = copyout(vap->iv_opmode == IEEE80211_M_WDS ?
921 vap->iv_bss->ni_macaddr : vap->iv_bss->ni_bssid,
922 ireq->i_data, ireq->i_len);
923 } else
924 error = copyout(vap->iv_des_bssid, ireq->i_data,
925 ireq->i_len);
926 break;
927 case IEEE80211_IOC_WPAIE:
928 case IEEE80211_IOC_WPAIE2:
929 error = ieee80211_ioctl_getwpaie(vap, ireq, ireq->i_type);
930 break;
931 case IEEE80211_IOC_SCAN_RESULTS:
932 error = ieee80211_ioctl_getscanresults(vap, ireq);
933 break;
934 case IEEE80211_IOC_STA_STATS:
935 error = ieee80211_ioctl_getstastats(vap, ireq);
936 break;
937 case IEEE80211_IOC_TXPOWMAX:
938 ireq->i_val = vap->iv_bss->ni_txpower;
939 break;
940 case IEEE80211_IOC_STA_TXPOW:
941 error = ieee80211_ioctl_getstatxpow(vap, ireq);
942 break;
943 case IEEE80211_IOC_STA_INFO:
944 error = ieee80211_ioctl_getstainfo(vap, ireq);
945 break;
946 case IEEE80211_IOC_WME_CWMIN: /* WME: CWmin */
947 case IEEE80211_IOC_WME_CWMAX: /* WME: CWmax */
948 case IEEE80211_IOC_WME_AIFS: /* WME: AIFS */
949 case IEEE80211_IOC_WME_TXOPLIMIT: /* WME: txops limit */
950 case IEEE80211_IOC_WME_ACM: /* WME: ACM (bss only) */
951 case IEEE80211_IOC_WME_ACKPOLICY: /* WME: ACK policy (!bss only) */
952 error = ieee80211_ioctl_getwmeparam(vap, ireq);
953 break;
954 case IEEE80211_IOC_DTIM_PERIOD:
955 ireq->i_val = vap->iv_dtim_period;
956 break;
957 case IEEE80211_IOC_BEACON_INTERVAL:
958 /* NB: get from ic_bss for station mode */
959 ireq->i_val = vap->iv_bss->ni_intval;
960 break;
961 case IEEE80211_IOC_PUREG:
962 ireq->i_val = (vap->iv_flags & IEEE80211_F_PUREG) != 0;
963 break;
964 case IEEE80211_IOC_QUIET:
965 ireq->i_val = vap->iv_quiet;
966 break;
967 case IEEE80211_IOC_QUIET_COUNT:
968 ireq->i_val = vap->iv_quiet_count;
969 break;
970 case IEEE80211_IOC_QUIET_PERIOD:
971 ireq->i_val = vap->iv_quiet_period;
972 break;
973 case IEEE80211_IOC_QUIET_DUR:
974 ireq->i_val = vap->iv_quiet_duration;
975 break;
976 case IEEE80211_IOC_QUIET_OFFSET:
977 ireq->i_val = vap->iv_quiet_offset;
978 break;
979 case IEEE80211_IOC_BGSCAN:
980 ireq->i_val = (vap->iv_flags & IEEE80211_F_BGSCAN) != 0;
981 break;
982 case IEEE80211_IOC_BGSCAN_IDLE:
983 ireq->i_val = vap->iv_bgscanidle*hz/1000; /* ms */
984 break;
985 case IEEE80211_IOC_BGSCAN_INTERVAL:
986 ireq->i_val = vap->iv_bgscanintvl/hz; /* seconds */
987 break;
988 case IEEE80211_IOC_SCANVALID:
989 ireq->i_val = vap->iv_scanvalid/hz; /* seconds */
990 break;
991 case IEEE80211_IOC_FRAGTHRESHOLD:
992 ireq->i_val = vap->iv_fragthreshold;
993 break;
994 case IEEE80211_IOC_MACCMD:
995 error = ieee80211_ioctl_getmaccmd(vap, ireq);
996 break;
997 case IEEE80211_IOC_BURST:
998 ireq->i_val = (vap->iv_flags & IEEE80211_F_BURST) != 0;
999 break;
1000 case IEEE80211_IOC_BMISSTHRESHOLD:
1001 ireq->i_val = vap->iv_bmissthreshold;
1002 break;
1003 case IEEE80211_IOC_CURCHAN:
1004 error = ieee80211_ioctl_getcurchan(vap, ireq);
1005 break;
1006 case IEEE80211_IOC_SHORTGI:
1007 ireq->i_val = 0;
1008 if (vap->iv_flags_ht & IEEE80211_FHT_SHORTGI20)
1009 ireq->i_val |= IEEE80211_HTCAP_SHORTGI20;
1010 if (vap->iv_flags_ht & IEEE80211_FHT_SHORTGI40)
1011 ireq->i_val |= IEEE80211_HTCAP_SHORTGI40;
1012 break;
1013 case IEEE80211_IOC_AMPDU:
1014 ireq->i_val = 0;
1015 if (vap->iv_flags_ht & IEEE80211_FHT_AMPDU_TX)
1016 ireq->i_val |= 1;
1017 if (vap->iv_flags_ht & IEEE80211_FHT_AMPDU_RX)
1018 ireq->i_val |= 2;
1019 break;
1020 case IEEE80211_IOC_AMPDU_LIMIT:
1021 /* XXX TODO: make this a per-node thing; and leave this as global */
1022 if (vap->iv_opmode == IEEE80211_M_HOSTAP)
1023 ireq->i_val = vap->iv_ampdu_rxmax;
1024 else if (vap->iv_state == IEEE80211_S_RUN || vap->iv_state == IEEE80211_S_SLEEP)
1025 /*
1026 * XXX TODO: this isn't completely correct, as we've
1027 * negotiated the higher of the two.
1028 */
1029 ireq->i_val = MS(vap->iv_bss->ni_htparam,
1030 IEEE80211_HTCAP_MAXRXAMPDU);
1031 else
1032 ireq->i_val = vap->iv_ampdu_limit;
1033 break;
1034 case IEEE80211_IOC_AMPDU_DENSITY:
1035 /* XXX TODO: make this a per-node thing; and leave this as global */
1036 if (vap->iv_opmode == IEEE80211_M_STA &&
1037 (vap->iv_state == IEEE80211_S_RUN || vap->iv_state == IEEE80211_S_SLEEP))
1038 /*
1039 * XXX TODO: this isn't completely correct, as we've
1040 * negotiated the higher of the two.
1041 */
1042 ireq->i_val = MS(vap->iv_bss->ni_htparam,
1043 IEEE80211_HTCAP_MPDUDENSITY);
1044 else
1045 ireq->i_val = vap->iv_ampdu_density;
1046 break;
1047 case IEEE80211_IOC_AMSDU:
1048 ireq->i_val = 0;
1049 if (vap->iv_flags_ht & IEEE80211_FHT_AMSDU_TX)
1050 ireq->i_val |= 1;
1051 if (vap->iv_flags_ht & IEEE80211_FHT_AMSDU_RX)
1052 ireq->i_val |= 2;
1053 break;
1054 case IEEE80211_IOC_AMSDU_LIMIT:
1055 ireq->i_val = vap->iv_amsdu_limit; /* XXX truncation? */
1056 break;
1057 case IEEE80211_IOC_PUREN:
1058 ireq->i_val = (vap->iv_flags_ht & IEEE80211_FHT_PUREN) != 0;
1059 break;
1060 case IEEE80211_IOC_DOTH:
1061 ireq->i_val = (vap->iv_flags & IEEE80211_F_DOTH) != 0;
1062 break;
1063 case IEEE80211_IOC_REGDOMAIN:
1064 error = ieee80211_ioctl_getregdomain(vap, ireq);
1065 break;
1066 case IEEE80211_IOC_ROAM:
1067 error = ieee80211_ioctl_getroam(vap, ireq);
1068 break;
1069 case IEEE80211_IOC_TXPARAMS:
1070 error = ieee80211_ioctl_gettxparams(vap, ireq);
1071 break;
1072 case IEEE80211_IOC_HTCOMPAT:
1073 ireq->i_val = (vap->iv_flags_ht & IEEE80211_FHT_HTCOMPAT) != 0;
1074 break;
1075 case IEEE80211_IOC_DWDS:
1076 ireq->i_val = (vap->iv_flags & IEEE80211_F_DWDS) != 0;
1077 break;
1078 case IEEE80211_IOC_INACTIVITY:
1079 ireq->i_val = (vap->iv_flags_ext & IEEE80211_FEXT_INACT) != 0;
1080 break;
1081 case IEEE80211_IOC_APPIE:
1082 error = ieee80211_ioctl_getappie(vap, ireq);
1083 break;
1084 case IEEE80211_IOC_WPS:
1085 ireq->i_val = (vap->iv_flags_ext & IEEE80211_FEXT_WPS) != 0;
1086 break;
1087 case IEEE80211_IOC_TSN:
1088 ireq->i_val = (vap->iv_flags_ext & IEEE80211_FEXT_TSN) != 0;
1089 break;
1090 case IEEE80211_IOC_DFS:
1091 ireq->i_val = (vap->iv_flags_ext & IEEE80211_FEXT_DFS) != 0;
1092 break;
1093 case IEEE80211_IOC_DOTD:
1094 ireq->i_val = (vap->iv_flags_ext & IEEE80211_FEXT_DOTD) != 0;
1095 break;
1096 case IEEE80211_IOC_DEVCAPS:
1097 error = ieee80211_ioctl_getdevcaps(ic, ireq);
1098 break;
1099 case IEEE80211_IOC_HTPROTMODE:
1100 ireq->i_val = ic->ic_htprotmode;
1101 break;
1102 case IEEE80211_IOC_HTCONF:
1103 if (vap->iv_flags_ht & IEEE80211_FHT_HT) {
1104 ireq->i_val = 1;
1105 if (vap->iv_flags_ht & IEEE80211_FHT_USEHT40)
1106 ireq->i_val |= 2;
1107 } else
1108 ireq->i_val = 0;
1109 break;
1110 case IEEE80211_IOC_STA_VLAN:
1111 error = ieee80211_ioctl_getstavlan(vap, ireq);
1112 break;
1113 case IEEE80211_IOC_SMPS:
1114 if (vap->iv_opmode == IEEE80211_M_STA &&
1115 (vap->iv_state == IEEE80211_S_RUN || vap->iv_state == IEEE80211_S_SLEEP)) {
1116 if (vap->iv_bss->ni_flags & IEEE80211_NODE_MIMO_RTS)
1117 ireq->i_val = IEEE80211_HTCAP_SMPS_DYNAMIC;
1118 else if (vap->iv_bss->ni_flags & IEEE80211_NODE_MIMO_PS)
1119 ireq->i_val = IEEE80211_HTCAP_SMPS_ENA;
1120 else
1121 ireq->i_val = IEEE80211_HTCAP_SMPS_OFF;
1122 } else
1123 ireq->i_val = vap->iv_htcaps & IEEE80211_HTCAP_SMPS;
1124 break;
1125 case IEEE80211_IOC_RIFS:
1126 if (vap->iv_opmode == IEEE80211_M_STA &&
1127 (vap->iv_state == IEEE80211_S_RUN || vap->iv_state == IEEE80211_S_SLEEP))
1128 ireq->i_val =
1129 (vap->iv_bss->ni_flags & IEEE80211_NODE_RIFS) != 0;
1130 else
1131 ireq->i_val =
1132 (vap->iv_flags_ht & IEEE80211_FHT_RIFS) != 0;
1133 break;
1134 case IEEE80211_IOC_STBC:
1135 ireq->i_val = 0;
1136 if (vap->iv_flags_ht & IEEE80211_FHT_STBC_TX)
1137 ireq->i_val |= 1;
1138 if (vap->iv_flags_ht & IEEE80211_FHT_STBC_RX)
1139 ireq->i_val |= 2;
1140 break;
1141 case IEEE80211_IOC_LDPC:
1142 ireq->i_val = 0;
1143 if (vap->iv_flags_ht & IEEE80211_FHT_LDPC_TX)
1144 ireq->i_val |= 1;
1145 if (vap->iv_flags_ht & IEEE80211_FHT_LDPC_RX)
1146 ireq->i_val |= 2;
1147 break;
1148
1149 /* VHT */
1150 case IEEE80211_IOC_VHTCONF:
1151 ireq->i_val = 0;
1152 if (vap->iv_flags_vht & IEEE80211_FVHT_VHT)
1153 ireq->i_val |= 1;
1154 if (vap->iv_flags_vht & IEEE80211_FVHT_USEVHT40)
1155 ireq->i_val |= 2;
1156 if (vap->iv_flags_vht & IEEE80211_FVHT_USEVHT80)
1157 ireq->i_val |= 4;
1158 if (vap->iv_flags_vht & IEEE80211_FVHT_USEVHT80P80)
1159 ireq->i_val |= 8;
1160 if (vap->iv_flags_vht & IEEE80211_FVHT_USEVHT160)
1161 ireq->i_val |= 16;
1162 break;
1163
1164 default:
1165 error = ieee80211_ioctl_getdefault(vap, ireq);
1166 break;
1167 }
1168 return error;
1169 #undef MS
1170 }
1171
1172 static int
ieee80211_ioctl_setkey(struct ieee80211vap * vap,struct ieee80211req * ireq)1173 ieee80211_ioctl_setkey(struct ieee80211vap *vap, struct ieee80211req *ireq)
1174 {
1175 struct ieee80211req_key ik;
1176 struct ieee80211_node *ni;
1177 struct ieee80211_key *wk;
1178 uint16_t kid;
1179 int error, i;
1180
1181 if (ireq->i_len != sizeof(ik))
1182 return EINVAL;
1183 error = copyin(ireq->i_data, &ik, sizeof(ik));
1184 if (error)
1185 return error;
1186 /* NB: cipher support is verified by ieee80211_crypt_newkey */
1187 /* NB: this also checks ik->ik_keylen > sizeof(wk->wk_key) */
1188 if (ik.ik_keylen > sizeof(ik.ik_keydata))
1189 return E2BIG;
1190 kid = ik.ik_keyix;
1191 if (kid == IEEE80211_KEYIX_NONE) {
1192 /* XXX unicast keys currently must be tx/rx */
1193 if (ik.ik_flags != (IEEE80211_KEY_XMIT | IEEE80211_KEY_RECV))
1194 return EINVAL;
1195 if (vap->iv_opmode == IEEE80211_M_STA) {
1196 ni = ieee80211_ref_node(vap->iv_bss);
1197 if (!IEEE80211_ADDR_EQ(ik.ik_macaddr, ni->ni_bssid)) {
1198 ieee80211_free_node(ni);
1199 return EADDRNOTAVAIL;
1200 }
1201 } else {
1202 ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap,
1203 ik.ik_macaddr);
1204 if (ni == NULL)
1205 return ENOENT;
1206 }
1207 wk = &ni->ni_ucastkey;
1208 } else {
1209 if (kid >= IEEE80211_WEP_NKID)
1210 return EINVAL;
1211 wk = &vap->iv_nw_keys[kid];
1212 /*
1213 * Global slots start off w/o any assigned key index.
1214 * Force one here for consistency with IEEE80211_IOC_WEPKEY.
1215 */
1216 if (wk->wk_keyix == IEEE80211_KEYIX_NONE)
1217 wk->wk_keyix = kid;
1218 ni = NULL;
1219 }
1220 error = 0;
1221 ieee80211_key_update_begin(vap);
1222 if (ieee80211_crypto_newkey(vap, ik.ik_type, ik.ik_flags, wk)) {
1223 wk->wk_keylen = ik.ik_keylen;
1224 /* NB: MIC presence is implied by cipher type */
1225 if (wk->wk_keylen > IEEE80211_KEYBUF_SIZE)
1226 wk->wk_keylen = IEEE80211_KEYBUF_SIZE;
1227 for (i = 0; i < IEEE80211_TID_SIZE; i++)
1228 wk->wk_keyrsc[i] = ik.ik_keyrsc;
1229 wk->wk_keytsc = 0; /* new key, reset */
1230 memset(wk->wk_key, 0, sizeof(wk->wk_key));
1231 memcpy(wk->wk_key, ik.ik_keydata, ik.ik_keylen);
1232 IEEE80211_ADDR_COPY(wk->wk_macaddr,
1233 ni != NULL ? ni->ni_macaddr : ik.ik_macaddr);
1234 if (!ieee80211_crypto_setkey(vap, wk))
1235 error = EIO;
1236 else if ((ik.ik_flags & IEEE80211_KEY_DEFAULT))
1237 /*
1238 * Inform the driver that this is the default
1239 * transmit key. Now, ideally we'd just set
1240 * a flag in the key update that would
1241 * say "yes, we're the default key", but
1242 * that currently isn't the way the ioctl ->
1243 * key interface works.
1244 */
1245 ieee80211_crypto_set_deftxkey(vap, kid);
1246 } else
1247 error = ENXIO;
1248 ieee80211_key_update_end(vap);
1249 if (ni != NULL)
1250 ieee80211_free_node(ni);
1251 return error;
1252 }
1253
1254 static int
ieee80211_ioctl_delkey(struct ieee80211vap * vap,struct ieee80211req * ireq)1255 ieee80211_ioctl_delkey(struct ieee80211vap *vap, struct ieee80211req *ireq)
1256 {
1257 struct ieee80211req_del_key dk;
1258 int kid, error;
1259
1260 if (ireq->i_len != sizeof(dk))
1261 return EINVAL;
1262 error = copyin(ireq->i_data, &dk, sizeof(dk));
1263 if (error)
1264 return error;
1265 kid = dk.idk_keyix;
1266 /* XXX uint8_t -> uint16_t */
1267 if (dk.idk_keyix == (uint8_t) IEEE80211_KEYIX_NONE) {
1268 struct ieee80211_node *ni;
1269
1270 if (vap->iv_opmode == IEEE80211_M_STA) {
1271 ni = ieee80211_ref_node(vap->iv_bss);
1272 if (!IEEE80211_ADDR_EQ(dk.idk_macaddr, ni->ni_bssid)) {
1273 ieee80211_free_node(ni);
1274 return EADDRNOTAVAIL;
1275 }
1276 } else {
1277 ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap,
1278 dk.idk_macaddr);
1279 if (ni == NULL)
1280 return ENOENT;
1281 }
1282 /* XXX error return */
1283 ieee80211_node_delucastkey(ni);
1284 ieee80211_free_node(ni);
1285 } else {
1286 if (kid >= IEEE80211_WEP_NKID)
1287 return EINVAL;
1288 /* XXX error return */
1289 ieee80211_crypto_delkey(vap, &vap->iv_nw_keys[kid]);
1290 }
1291 return 0;
1292 }
1293
1294 struct mlmeop {
1295 struct ieee80211vap *vap;
1296 int op;
1297 int reason;
1298 };
1299
1300 static void
mlmedebug(struct ieee80211vap * vap,const uint8_t mac[IEEE80211_ADDR_LEN],int op,int reason)1301 mlmedebug(struct ieee80211vap *vap, const uint8_t mac[IEEE80211_ADDR_LEN],
1302 int op, int reason)
1303 {
1304 #ifdef IEEE80211_DEBUG
1305 static const struct {
1306 int mask;
1307 const char *opstr;
1308 } ops[] = {
1309 { 0, "op#0" },
1310 { IEEE80211_MSG_IOCTL | IEEE80211_MSG_STATE |
1311 IEEE80211_MSG_ASSOC, "assoc" },
1312 { IEEE80211_MSG_IOCTL | IEEE80211_MSG_STATE |
1313 IEEE80211_MSG_ASSOC, "disassoc" },
1314 { IEEE80211_MSG_IOCTL | IEEE80211_MSG_STATE |
1315 IEEE80211_MSG_AUTH, "deauth" },
1316 { IEEE80211_MSG_IOCTL | IEEE80211_MSG_STATE |
1317 IEEE80211_MSG_AUTH, "authorize" },
1318 { IEEE80211_MSG_IOCTL | IEEE80211_MSG_STATE |
1319 IEEE80211_MSG_AUTH, "unauthorize" },
1320 };
1321
1322 if (op == IEEE80211_MLME_AUTH) {
1323 IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_IOCTL |
1324 IEEE80211_MSG_STATE | IEEE80211_MSG_AUTH, mac,
1325 "station authenticate %s via MLME (reason: %d (%s))",
1326 reason == IEEE80211_STATUS_SUCCESS ? "ACCEPT" : "REJECT",
1327 reason, ieee80211_reason_to_string(reason));
1328 } else if (!(IEEE80211_MLME_ASSOC <= op && op <= IEEE80211_MLME_AUTH)) {
1329 IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_ANY, mac,
1330 "unknown MLME request %d (reason: %d (%s))", op, reason,
1331 ieee80211_reason_to_string(reason));
1332 } else if (reason == IEEE80211_STATUS_SUCCESS) {
1333 IEEE80211_NOTE_MAC(vap, ops[op].mask, mac,
1334 "station %s via MLME", ops[op].opstr);
1335 } else {
1336 IEEE80211_NOTE_MAC(vap, ops[op].mask, mac,
1337 "station %s via MLME (reason: %d (%s))", ops[op].opstr,
1338 reason, ieee80211_reason_to_string(reason));
1339 }
1340 #endif /* IEEE80211_DEBUG */
1341 }
1342
1343 static void
domlme(void * arg,struct ieee80211_node * ni)1344 domlme(void *arg, struct ieee80211_node *ni)
1345 {
1346 struct mlmeop *mop = arg;
1347 struct ieee80211vap *vap = ni->ni_vap;
1348
1349 if (vap != mop->vap)
1350 return;
1351 /*
1352 * NB: if ni_associd is zero then the node is already cleaned
1353 * up and we don't need to do this (we're safely holding a
1354 * reference but should otherwise not modify it's state).
1355 */
1356 if (ni->ni_associd == 0)
1357 return;
1358 mlmedebug(vap, ni->ni_macaddr, mop->op, mop->reason);
1359 if (mop->op == IEEE80211_MLME_DEAUTH) {
1360 IEEE80211_SEND_MGMT(ni, IEEE80211_FC0_SUBTYPE_DEAUTH,
1361 mop->reason);
1362 } else {
1363 IEEE80211_SEND_MGMT(ni, IEEE80211_FC0_SUBTYPE_DISASSOC,
1364 mop->reason);
1365 }
1366 ieee80211_node_leave(ni);
1367 }
1368
1369 static int
setmlme_dropsta(struct ieee80211vap * vap,const uint8_t mac[IEEE80211_ADDR_LEN],struct mlmeop * mlmeop)1370 setmlme_dropsta(struct ieee80211vap *vap,
1371 const uint8_t mac[IEEE80211_ADDR_LEN], struct mlmeop *mlmeop)
1372 {
1373 struct ieee80211_node_table *nt = &vap->iv_ic->ic_sta;
1374 struct ieee80211_node *ni;
1375 int error = 0;
1376
1377 /* NB: the broadcast address means do 'em all */
1378 if (!IEEE80211_ADDR_EQ(mac, vap->iv_ifp->if_broadcastaddr)) {
1379 IEEE80211_NODE_LOCK(nt);
1380 ni = ieee80211_find_node_locked(nt, mac);
1381 IEEE80211_NODE_UNLOCK(nt);
1382 /*
1383 * Don't do the node update inside the node
1384 * table lock. This unfortunately causes LORs
1385 * with drivers and their TX paths.
1386 */
1387 if (ni != NULL) {
1388 domlme(mlmeop, ni);
1389 ieee80211_free_node(ni);
1390 } else
1391 error = ENOENT;
1392 } else {
1393 ieee80211_iterate_nodes(nt, domlme, mlmeop);
1394 }
1395 return error;
1396 }
1397
1398 static int
setmlme_common(struct ieee80211vap * vap,int op,const uint8_t mac[IEEE80211_ADDR_LEN],int reason)1399 setmlme_common(struct ieee80211vap *vap, int op,
1400 const uint8_t mac[IEEE80211_ADDR_LEN], int reason)
1401 {
1402 struct ieee80211com *ic = vap->iv_ic;
1403 struct ieee80211_node_table *nt = &ic->ic_sta;
1404 struct ieee80211_node *ni;
1405 struct mlmeop mlmeop;
1406 int error;
1407
1408 error = 0;
1409 switch (op) {
1410 case IEEE80211_MLME_DISASSOC:
1411 case IEEE80211_MLME_DEAUTH:
1412 switch (vap->iv_opmode) {
1413 case IEEE80211_M_STA:
1414 mlmedebug(vap, vap->iv_bss->ni_macaddr, op, reason);
1415 /* XXX not quite right */
1416 ieee80211_new_state(vap, IEEE80211_S_INIT, reason);
1417 break;
1418 case IEEE80211_M_HOSTAP:
1419 mlmeop.vap = vap;
1420 mlmeop.op = op;
1421 mlmeop.reason = reason;
1422 error = setmlme_dropsta(vap, mac, &mlmeop);
1423 break;
1424 case IEEE80211_M_WDS:
1425 /* XXX user app should send raw frame? */
1426 if (op != IEEE80211_MLME_DEAUTH) {
1427 error = EINVAL;
1428 break;
1429 }
1430 #if 0
1431 /* XXX accept any address, simplifies user code */
1432 if (!IEEE80211_ADDR_EQ(mac, vap->iv_bss->ni_macaddr)) {
1433 error = EINVAL;
1434 break;
1435 }
1436 #endif
1437 mlmedebug(vap, vap->iv_bss->ni_macaddr, op, reason);
1438 ni = ieee80211_ref_node(vap->iv_bss);
1439 IEEE80211_SEND_MGMT(ni,
1440 IEEE80211_FC0_SUBTYPE_DEAUTH, reason);
1441 ieee80211_free_node(ni);
1442 break;
1443 case IEEE80211_M_MBSS:
1444 IEEE80211_NODE_LOCK(nt);
1445 ni = ieee80211_find_node_locked(nt, mac);
1446 /*
1447 * Don't do the node update inside the node
1448 * table lock. This unfortunately causes LORs
1449 * with drivers and their TX paths.
1450 */
1451 IEEE80211_NODE_UNLOCK(nt);
1452 if (ni != NULL) {
1453 ieee80211_node_leave(ni);
1454 ieee80211_free_node(ni);
1455 } else {
1456 error = ENOENT;
1457 }
1458 break;
1459 default:
1460 error = EINVAL;
1461 break;
1462 }
1463 break;
1464 case IEEE80211_MLME_AUTHORIZE:
1465 case IEEE80211_MLME_UNAUTHORIZE:
1466 if (vap->iv_opmode != IEEE80211_M_HOSTAP &&
1467 vap->iv_opmode != IEEE80211_M_WDS) {
1468 error = EINVAL;
1469 break;
1470 }
1471 IEEE80211_NODE_LOCK(nt);
1472 ni = ieee80211_find_vap_node_locked(nt, vap, mac);
1473 /*
1474 * Don't do the node update inside the node
1475 * table lock. This unfortunately causes LORs
1476 * with drivers and their TX paths.
1477 */
1478 IEEE80211_NODE_UNLOCK(nt);
1479 if (ni != NULL) {
1480 mlmedebug(vap, mac, op, reason);
1481 if (op == IEEE80211_MLME_AUTHORIZE)
1482 ieee80211_node_authorize(ni);
1483 else
1484 ieee80211_node_unauthorize(ni);
1485 ieee80211_free_node(ni);
1486 } else
1487 error = ENOENT;
1488 break;
1489 case IEEE80211_MLME_AUTH:
1490 if (vap->iv_opmode != IEEE80211_M_HOSTAP) {
1491 error = EINVAL;
1492 break;
1493 }
1494 IEEE80211_NODE_LOCK(nt);
1495 ni = ieee80211_find_vap_node_locked(nt, vap, mac);
1496 /*
1497 * Don't do the node update inside the node
1498 * table lock. This unfortunately causes LORs
1499 * with drivers and their TX paths.
1500 */
1501 IEEE80211_NODE_UNLOCK(nt);
1502 if (ni != NULL) {
1503 mlmedebug(vap, mac, op, reason);
1504 if (reason == IEEE80211_STATUS_SUCCESS) {
1505 IEEE80211_SEND_MGMT(ni,
1506 IEEE80211_FC0_SUBTYPE_AUTH, 2);
1507 /*
1508 * For shared key auth, just continue the
1509 * exchange. Otherwise when 802.1x is not in
1510 * use mark the port authorized at this point
1511 * so traffic can flow.
1512 */
1513 if (ni->ni_authmode != IEEE80211_AUTH_8021X &&
1514 ni->ni_challenge == NULL)
1515 ieee80211_node_authorize(ni);
1516 } else {
1517 vap->iv_stats.is_rx_acl++;
1518 ieee80211_send_error(ni, ni->ni_macaddr,
1519 IEEE80211_FC0_SUBTYPE_AUTH, 2|(reason<<16));
1520 ieee80211_node_leave(ni);
1521 }
1522 ieee80211_free_node(ni);
1523 } else
1524 error = ENOENT;
1525 break;
1526 default:
1527 error = EINVAL;
1528 break;
1529 }
1530 return error;
1531 }
1532
1533 struct scanlookup {
1534 const uint8_t *mac;
1535 int esslen;
1536 const uint8_t *essid;
1537 const struct ieee80211_scan_entry *se;
1538 };
1539
1540 /*
1541 * Match mac address and any ssid.
1542 */
1543 static void
mlmelookup(void * arg,const struct ieee80211_scan_entry * se)1544 mlmelookup(void *arg, const struct ieee80211_scan_entry *se)
1545 {
1546 struct scanlookup *look = arg;
1547
1548 if (!IEEE80211_ADDR_EQ(look->mac, se->se_macaddr))
1549 return;
1550 if (look->esslen != 0) {
1551 if (se->se_ssid[1] != look->esslen)
1552 return;
1553 if (memcmp(look->essid, se->se_ssid+2, look->esslen))
1554 return;
1555 }
1556 look->se = se;
1557 }
1558
1559 static int
setmlme_assoc_sta(struct ieee80211vap * vap,const uint8_t mac[IEEE80211_ADDR_LEN],int ssid_len,const uint8_t ssid[IEEE80211_NWID_LEN])1560 setmlme_assoc_sta(struct ieee80211vap *vap,
1561 const uint8_t mac[IEEE80211_ADDR_LEN], int ssid_len,
1562 const uint8_t ssid[IEEE80211_NWID_LEN])
1563 {
1564 struct scanlookup lookup;
1565
1566 KASSERT(vap->iv_opmode == IEEE80211_M_STA,
1567 ("expected opmode STA not %s",
1568 ieee80211_opmode_name[vap->iv_opmode]));
1569
1570 /* NB: this is racey if roaming is !manual */
1571 lookup.se = NULL;
1572 lookup.mac = mac;
1573 lookup.esslen = ssid_len;
1574 lookup.essid = ssid;
1575 ieee80211_scan_iterate(vap, mlmelookup, &lookup);
1576 if (lookup.se == NULL)
1577 return ENOENT;
1578 mlmedebug(vap, mac, IEEE80211_MLME_ASSOC, 0);
1579 if (!ieee80211_sta_join(vap, lookup.se->se_chan, lookup.se))
1580 return EIO; /* XXX unique but could be better */
1581 return 0;
1582 }
1583
1584 static int
setmlme_assoc_adhoc(struct ieee80211vap * vap,const uint8_t mac[IEEE80211_ADDR_LEN],int ssid_len,const uint8_t ssid[IEEE80211_NWID_LEN])1585 setmlme_assoc_adhoc(struct ieee80211vap *vap,
1586 const uint8_t mac[IEEE80211_ADDR_LEN], int ssid_len,
1587 const uint8_t ssid[IEEE80211_NWID_LEN])
1588 {
1589 struct ieee80211_scan_req *sr;
1590 int error;
1591
1592 KASSERT(vap->iv_opmode == IEEE80211_M_IBSS ||
1593 vap->iv_opmode == IEEE80211_M_AHDEMO,
1594 ("expected opmode IBSS or AHDEMO not %s",
1595 ieee80211_opmode_name[vap->iv_opmode]));
1596
1597 if (ssid_len == 0)
1598 return EINVAL;
1599
1600 sr = IEEE80211_MALLOC(sizeof(*sr), M_TEMP,
1601 IEEE80211_M_NOWAIT | IEEE80211_M_ZERO);
1602 if (sr == NULL)
1603 return ENOMEM;
1604
1605 /* NB: IEEE80211_IOC_SSID call missing for ap_scan=2. */
1606 memset(vap->iv_des_ssid[0].ssid, 0, IEEE80211_NWID_LEN);
1607 vap->iv_des_ssid[0].len = ssid_len;
1608 memcpy(vap->iv_des_ssid[0].ssid, ssid, ssid_len);
1609 vap->iv_des_nssid = 1;
1610
1611 sr->sr_flags = IEEE80211_IOC_SCAN_ACTIVE | IEEE80211_IOC_SCAN_ONCE;
1612 sr->sr_duration = IEEE80211_IOC_SCAN_FOREVER;
1613 memcpy(sr->sr_ssid[0].ssid, ssid, ssid_len);
1614 sr->sr_ssid[0].len = ssid_len;
1615 sr->sr_nssid = 1;
1616
1617 error = ieee80211_scanreq(vap, sr);
1618
1619 IEEE80211_FREE(sr, M_TEMP);
1620 return error;
1621 }
1622
1623 static int
ieee80211_ioctl_setmlme(struct ieee80211vap * vap,struct ieee80211req * ireq)1624 ieee80211_ioctl_setmlme(struct ieee80211vap *vap, struct ieee80211req *ireq)
1625 {
1626 struct ieee80211req_mlme mlme;
1627 int error;
1628
1629 if (ireq->i_len != sizeof(mlme))
1630 return EINVAL;
1631 error = copyin(ireq->i_data, &mlme, sizeof(mlme));
1632 if (error)
1633 return error;
1634 if (vap->iv_opmode == IEEE80211_M_STA &&
1635 mlme.im_op == IEEE80211_MLME_ASSOC)
1636 return setmlme_assoc_sta(vap, mlme.im_macaddr,
1637 vap->iv_des_ssid[0].len, vap->iv_des_ssid[0].ssid);
1638 else if ((vap->iv_opmode == IEEE80211_M_IBSS ||
1639 vap->iv_opmode == IEEE80211_M_AHDEMO) &&
1640 mlme.im_op == IEEE80211_MLME_ASSOC)
1641 return setmlme_assoc_adhoc(vap, mlme.im_macaddr,
1642 mlme.im_ssid_len, mlme.im_ssid);
1643 else
1644 return setmlme_common(vap, mlme.im_op,
1645 mlme.im_macaddr, mlme.im_reason);
1646 }
1647
1648 static int
ieee80211_ioctl_macmac(struct ieee80211vap * vap,struct ieee80211req * ireq)1649 ieee80211_ioctl_macmac(struct ieee80211vap *vap, struct ieee80211req *ireq)
1650 {
1651 uint8_t mac[IEEE80211_ADDR_LEN];
1652 const struct ieee80211_aclator *acl = vap->iv_acl;
1653 int error;
1654
1655 if (ireq->i_len != sizeof(mac))
1656 return EINVAL;
1657 error = copyin(ireq->i_data, mac, ireq->i_len);
1658 if (error)
1659 return error;
1660 if (acl == NULL) {
1661 acl = ieee80211_aclator_get("mac");
1662 if (acl == NULL || !acl->iac_attach(vap))
1663 return EINVAL;
1664 vap->iv_acl = acl;
1665 }
1666 if (ireq->i_type == IEEE80211_IOC_ADDMAC)
1667 acl->iac_add(vap, mac);
1668 else
1669 acl->iac_remove(vap, mac);
1670 return 0;
1671 }
1672
1673 static int
ieee80211_ioctl_setmaccmd(struct ieee80211vap * vap,struct ieee80211req * ireq)1674 ieee80211_ioctl_setmaccmd(struct ieee80211vap *vap, struct ieee80211req *ireq)
1675 {
1676 const struct ieee80211_aclator *acl = vap->iv_acl;
1677
1678 switch (ireq->i_val) {
1679 case IEEE80211_MACCMD_POLICY_OPEN:
1680 case IEEE80211_MACCMD_POLICY_ALLOW:
1681 case IEEE80211_MACCMD_POLICY_DENY:
1682 case IEEE80211_MACCMD_POLICY_RADIUS:
1683 if (acl == NULL) {
1684 acl = ieee80211_aclator_get("mac");
1685 if (acl == NULL || !acl->iac_attach(vap))
1686 return EINVAL;
1687 vap->iv_acl = acl;
1688 }
1689 acl->iac_setpolicy(vap, ireq->i_val);
1690 break;
1691 case IEEE80211_MACCMD_FLUSH:
1692 if (acl != NULL)
1693 acl->iac_flush(vap);
1694 /* NB: silently ignore when not in use */
1695 break;
1696 case IEEE80211_MACCMD_DETACH:
1697 if (acl != NULL) {
1698 vap->iv_acl = NULL;
1699 acl->iac_detach(vap);
1700 }
1701 break;
1702 default:
1703 if (acl == NULL)
1704 return EINVAL;
1705 else
1706 return acl->iac_setioctl(vap, ireq);
1707 }
1708 return 0;
1709 }
1710
1711 static int
ieee80211_ioctl_setchanlist(struct ieee80211vap * vap,struct ieee80211req * ireq)1712 ieee80211_ioctl_setchanlist(struct ieee80211vap *vap, struct ieee80211req *ireq)
1713 {
1714 struct ieee80211com *ic = vap->iv_ic;
1715 uint8_t *chanlist, *list;
1716 int i, nchan, maxchan, error;
1717
1718 if (ireq->i_len > sizeof(ic->ic_chan_active))
1719 ireq->i_len = sizeof(ic->ic_chan_active);
1720 list = IEEE80211_MALLOC(ireq->i_len + IEEE80211_CHAN_BYTES, M_TEMP,
1721 IEEE80211_M_NOWAIT | IEEE80211_M_ZERO);
1722 if (list == NULL)
1723 return ENOMEM;
1724 error = copyin(ireq->i_data, list, ireq->i_len);
1725 if (error) {
1726 IEEE80211_FREE(list, M_TEMP);
1727 return error;
1728 }
1729 nchan = 0;
1730 chanlist = list + ireq->i_len; /* NB: zero'd already */
1731 maxchan = ireq->i_len * NBBY;
1732 for (i = 0; i < ic->ic_nchans; i++) {
1733 const struct ieee80211_channel *c = &ic->ic_channels[i];
1734 /*
1735 * Calculate the intersection of the user list and the
1736 * available channels so users can do things like specify
1737 * 1-255 to get all available channels.
1738 */
1739 if (c->ic_ieee < maxchan && isset(list, c->ic_ieee)) {
1740 setbit(chanlist, c->ic_ieee);
1741 nchan++;
1742 }
1743 }
1744 if (nchan == 0) {
1745 IEEE80211_FREE(list, M_TEMP);
1746 return EINVAL;
1747 }
1748 if (ic->ic_bsschan != IEEE80211_CHAN_ANYC && /* XXX */
1749 isclr(chanlist, ic->ic_bsschan->ic_ieee))
1750 ic->ic_bsschan = IEEE80211_CHAN_ANYC;
1751 memcpy(ic->ic_chan_active, chanlist, IEEE80211_CHAN_BYTES);
1752 ieee80211_scan_flush(vap);
1753 IEEE80211_FREE(list, M_TEMP);
1754 return ENETRESET;
1755 }
1756
1757 static int
ieee80211_ioctl_setstastats(struct ieee80211vap * vap,struct ieee80211req * ireq)1758 ieee80211_ioctl_setstastats(struct ieee80211vap *vap, struct ieee80211req *ireq)
1759 {
1760 struct ieee80211_node *ni;
1761 uint8_t macaddr[IEEE80211_ADDR_LEN];
1762 int error;
1763
1764 /*
1765 * NB: we could copyin ieee80211req_sta_stats so apps
1766 * could make selective changes but that's overkill;
1767 * just clear all stats for now.
1768 */
1769 if (ireq->i_len < IEEE80211_ADDR_LEN)
1770 return EINVAL;
1771 error = copyin(ireq->i_data, macaddr, IEEE80211_ADDR_LEN);
1772 if (error != 0)
1773 return error;
1774 ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap, macaddr);
1775 if (ni == NULL)
1776 return ENOENT;
1777 /* XXX require ni_vap == vap? */
1778 memset(&ni->ni_stats, 0, sizeof(ni->ni_stats));
1779 ieee80211_free_node(ni);
1780 return 0;
1781 }
1782
1783 static int
ieee80211_ioctl_setstatxpow(struct ieee80211vap * vap,struct ieee80211req * ireq)1784 ieee80211_ioctl_setstatxpow(struct ieee80211vap *vap, struct ieee80211req *ireq)
1785 {
1786 struct ieee80211_node *ni;
1787 struct ieee80211req_sta_txpow txpow;
1788 int error;
1789
1790 if (ireq->i_len != sizeof(txpow))
1791 return EINVAL;
1792 error = copyin(ireq->i_data, &txpow, sizeof(txpow));
1793 if (error != 0)
1794 return error;
1795 ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap, txpow.it_macaddr);
1796 if (ni == NULL)
1797 return ENOENT;
1798 ni->ni_txpower = txpow.it_txpow;
1799 ieee80211_free_node(ni);
1800 return error;
1801 }
1802
1803 static int
ieee80211_ioctl_setwmeparam(struct ieee80211vap * vap,struct ieee80211req * ireq)1804 ieee80211_ioctl_setwmeparam(struct ieee80211vap *vap, struct ieee80211req *ireq)
1805 {
1806 struct ieee80211com *ic = vap->iv_ic;
1807 struct ieee80211_wme_state *wme = &ic->ic_wme;
1808 struct wmeParams *wmep, *chanp;
1809 int isbss, ac, aggrmode;
1810
1811 if ((ic->ic_caps & IEEE80211_C_WME) == 0)
1812 return EOPNOTSUPP;
1813
1814 isbss = (ireq->i_len & IEEE80211_WMEPARAM_BSS);
1815 ac = (ireq->i_len & IEEE80211_WMEPARAM_VAL);
1816 aggrmode = (wme->wme_flags & WME_F_AGGRMODE);
1817 if (ac >= WME_NUM_AC)
1818 ac = WME_AC_BE;
1819 if (isbss) {
1820 chanp = &wme->wme_bssChanParams.cap_wmeParams[ac];
1821 wmep = &wme->wme_wmeBssChanParams.cap_wmeParams[ac];
1822 } else {
1823 chanp = &wme->wme_chanParams.cap_wmeParams[ac];
1824 wmep = &wme->wme_wmeChanParams.cap_wmeParams[ac];
1825 }
1826 switch (ireq->i_type) {
1827 case IEEE80211_IOC_WME_CWMIN: /* WME: CWmin */
1828 wmep->wmep_logcwmin = ireq->i_val;
1829 if (!isbss || !aggrmode)
1830 chanp->wmep_logcwmin = ireq->i_val;
1831 break;
1832 case IEEE80211_IOC_WME_CWMAX: /* WME: CWmax */
1833 wmep->wmep_logcwmax = ireq->i_val;
1834 if (!isbss || !aggrmode)
1835 chanp->wmep_logcwmax = ireq->i_val;
1836 break;
1837 case IEEE80211_IOC_WME_AIFS: /* WME: AIFS */
1838 wmep->wmep_aifsn = ireq->i_val;
1839 if (!isbss || !aggrmode)
1840 chanp->wmep_aifsn = ireq->i_val;
1841 break;
1842 case IEEE80211_IOC_WME_TXOPLIMIT: /* WME: txops limit */
1843 wmep->wmep_txopLimit = ireq->i_val;
1844 if (!isbss || !aggrmode)
1845 chanp->wmep_txopLimit = ireq->i_val;
1846 break;
1847 case IEEE80211_IOC_WME_ACM: /* WME: ACM (bss only) */
1848 wmep->wmep_acm = ireq->i_val;
1849 if (!aggrmode)
1850 chanp->wmep_acm = ireq->i_val;
1851 break;
1852 case IEEE80211_IOC_WME_ACKPOLICY: /* WME: ACK policy (!bss only)*/
1853 wmep->wmep_noackPolicy = chanp->wmep_noackPolicy =
1854 (ireq->i_val) == 0;
1855 break;
1856 }
1857 ieee80211_wme_updateparams(vap);
1858 return 0;
1859 }
1860
1861 static int
find11gchannel(struct ieee80211com * ic,int start,int freq)1862 find11gchannel(struct ieee80211com *ic, int start, int freq)
1863 {
1864 const struct ieee80211_channel *c;
1865 int i;
1866
1867 for (i = start+1; i < ic->ic_nchans; i++) {
1868 c = &ic->ic_channels[i];
1869 if (c->ic_freq == freq && IEEE80211_IS_CHAN_ANYG(c))
1870 return 1;
1871 }
1872 /* NB: should not be needed but in case things are mis-sorted */
1873 for (i = 0; i < start; i++) {
1874 c = &ic->ic_channels[i];
1875 if (c->ic_freq == freq && IEEE80211_IS_CHAN_ANYG(c))
1876 return 1;
1877 }
1878 return 0;
1879 }
1880
1881 static struct ieee80211_channel *
findchannel(struct ieee80211com * ic,int ieee,int mode)1882 findchannel(struct ieee80211com *ic, int ieee, int mode)
1883 {
1884 static const u_int chanflags[IEEE80211_MODE_MAX] = {
1885 [IEEE80211_MODE_AUTO] = 0,
1886 [IEEE80211_MODE_11A] = IEEE80211_CHAN_A,
1887 [IEEE80211_MODE_11B] = IEEE80211_CHAN_B,
1888 [IEEE80211_MODE_11G] = IEEE80211_CHAN_G,
1889 [IEEE80211_MODE_FH] = IEEE80211_CHAN_FHSS,
1890 [IEEE80211_MODE_TURBO_A] = IEEE80211_CHAN_108A,
1891 [IEEE80211_MODE_TURBO_G] = IEEE80211_CHAN_108G,
1892 [IEEE80211_MODE_STURBO_A] = IEEE80211_CHAN_STURBO,
1893 [IEEE80211_MODE_HALF] = IEEE80211_CHAN_HALF,
1894 [IEEE80211_MODE_QUARTER] = IEEE80211_CHAN_QUARTER,
1895 /* NB: handled specially below */
1896 [IEEE80211_MODE_11NA] = IEEE80211_CHAN_A,
1897 [IEEE80211_MODE_11NG] = IEEE80211_CHAN_G,
1898 [IEEE80211_MODE_VHT_5GHZ] = IEEE80211_CHAN_A,
1899 [IEEE80211_MODE_VHT_2GHZ] = IEEE80211_CHAN_G,
1900 };
1901 u_int modeflags;
1902 int i;
1903
1904 modeflags = chanflags[mode];
1905 for (i = 0; i < ic->ic_nchans; i++) {
1906 struct ieee80211_channel *c = &ic->ic_channels[i];
1907
1908 if (c->ic_ieee != ieee)
1909 continue;
1910 if (mode == IEEE80211_MODE_AUTO) {
1911 /* ignore turbo channels for autoselect */
1912 if (IEEE80211_IS_CHAN_TURBO(c))
1913 continue;
1914 /*
1915 * XXX special-case 11b/g channels so we
1916 * always select the g channel if both
1917 * are present.
1918 * XXX prefer HT to non-HT?
1919 */
1920 if (!IEEE80211_IS_CHAN_B(c) ||
1921 !find11gchannel(ic, i, c->ic_freq))
1922 return c;
1923 } else {
1924 /* must check VHT specifically */
1925 if ((mode == IEEE80211_MODE_VHT_5GHZ ||
1926 mode == IEEE80211_MODE_VHT_2GHZ) &&
1927 !IEEE80211_IS_CHAN_VHT(c))
1928 continue;
1929
1930 /*
1931 * Must check HT specially - only match on HT,
1932 * not HT+VHT channels
1933 */
1934 if ((mode == IEEE80211_MODE_11NA ||
1935 mode == IEEE80211_MODE_11NG) &&
1936 !IEEE80211_IS_CHAN_HT(c))
1937 continue;
1938
1939 if ((mode == IEEE80211_MODE_11NA ||
1940 mode == IEEE80211_MODE_11NG) &&
1941 IEEE80211_IS_CHAN_VHT(c))
1942 continue;
1943
1944 /* Check that the modeflags above match */
1945 if ((c->ic_flags & modeflags) == modeflags)
1946 return c;
1947 }
1948 }
1949 return NULL;
1950 }
1951
1952 /*
1953 * Check the specified against any desired mode (aka netband).
1954 * This is only used (presently) when operating in hostap mode
1955 * to enforce consistency.
1956 */
1957 static int
check_mode_consistency(const struct ieee80211_channel * c,int mode)1958 check_mode_consistency(const struct ieee80211_channel *c, int mode)
1959 {
1960 KASSERT(c != IEEE80211_CHAN_ANYC, ("oops, no channel"));
1961
1962 switch (mode) {
1963 case IEEE80211_MODE_11B:
1964 return (IEEE80211_IS_CHAN_B(c));
1965 case IEEE80211_MODE_11G:
1966 return (IEEE80211_IS_CHAN_ANYG(c) && !IEEE80211_IS_CHAN_HT(c));
1967 case IEEE80211_MODE_11A:
1968 return (IEEE80211_IS_CHAN_A(c) && !IEEE80211_IS_CHAN_HT(c));
1969 case IEEE80211_MODE_STURBO_A:
1970 return (IEEE80211_IS_CHAN_STURBO(c));
1971 case IEEE80211_MODE_11NA:
1972 return (IEEE80211_IS_CHAN_HTA(c));
1973 case IEEE80211_MODE_11NG:
1974 return (IEEE80211_IS_CHAN_HTG(c));
1975 }
1976 return 1;
1977
1978 }
1979
1980 /*
1981 * Common code to set the current channel. If the device
1982 * is up and running this may result in an immediate channel
1983 * change or a kick of the state machine.
1984 */
1985 static int
setcurchan(struct ieee80211vap * vap,struct ieee80211_channel * c)1986 setcurchan(struct ieee80211vap *vap, struct ieee80211_channel *c)
1987 {
1988 struct ieee80211com *ic = vap->iv_ic;
1989 int error;
1990
1991 if (c != IEEE80211_CHAN_ANYC) {
1992 if (IEEE80211_IS_CHAN_RADAR(c))
1993 return EBUSY; /* XXX better code? */
1994 if (vap->iv_opmode == IEEE80211_M_HOSTAP) {
1995 if (IEEE80211_IS_CHAN_NOHOSTAP(c))
1996 return EINVAL;
1997 if (!check_mode_consistency(c, vap->iv_des_mode))
1998 return EINVAL;
1999 } else if (vap->iv_opmode == IEEE80211_M_IBSS) {
2000 if (IEEE80211_IS_CHAN_NOADHOC(c))
2001 return EINVAL;
2002 }
2003 if ((vap->iv_state == IEEE80211_S_RUN || vap->iv_state == IEEE80211_S_SLEEP) &&
2004 vap->iv_bss->ni_chan == c)
2005 return 0; /* NB: nothing to do */
2006 }
2007 vap->iv_des_chan = c;
2008
2009 error = 0;
2010 if (vap->iv_opmode == IEEE80211_M_MONITOR &&
2011 vap->iv_des_chan != IEEE80211_CHAN_ANYC) {
2012 /*
2013 * Monitor mode can switch directly.
2014 */
2015 if (IFNET_IS_UP_RUNNING(vap->iv_ifp)) {
2016 /* XXX need state machine for other vap's to follow */
2017 ieee80211_setcurchan(ic, vap->iv_des_chan);
2018 vap->iv_bss->ni_chan = ic->ic_curchan;
2019 } else {
2020 ic->ic_curchan = vap->iv_des_chan;
2021 ic->ic_rt = ieee80211_get_ratetable(ic->ic_curchan);
2022 }
2023 } else {
2024 /*
2025 * Need to go through the state machine in case we
2026 * need to reassociate or the like. The state machine
2027 * will pickup the desired channel and avoid scanning.
2028 */
2029 if (IS_UP_AUTO(vap))
2030 ieee80211_new_state(vap, IEEE80211_S_SCAN, 0);
2031 else if (vap->iv_des_chan != IEEE80211_CHAN_ANYC) {
2032 /*
2033 * When not up+running and a real channel has
2034 * been specified fix the current channel so
2035 * there is immediate feedback; e.g. via ifconfig.
2036 */
2037 ic->ic_curchan = vap->iv_des_chan;
2038 ic->ic_rt = ieee80211_get_ratetable(ic->ic_curchan);
2039 }
2040 }
2041 return error;
2042 }
2043
2044 /*
2045 * Old api for setting the current channel; this is
2046 * deprecated because channel numbers are ambiguous.
2047 */
2048 static int
ieee80211_ioctl_setchannel(struct ieee80211vap * vap,const struct ieee80211req * ireq)2049 ieee80211_ioctl_setchannel(struct ieee80211vap *vap,
2050 const struct ieee80211req *ireq)
2051 {
2052 struct ieee80211com *ic = vap->iv_ic;
2053 struct ieee80211_channel *c;
2054
2055 /* XXX 0xffff overflows 16-bit signed */
2056 if (ireq->i_val == 0 ||
2057 ireq->i_val == (int16_t) IEEE80211_CHAN_ANY) {
2058 c = IEEE80211_CHAN_ANYC;
2059 } else {
2060 struct ieee80211_channel *c2;
2061
2062 c = findchannel(ic, ireq->i_val, vap->iv_des_mode);
2063 if (c == NULL) {
2064 c = findchannel(ic, ireq->i_val,
2065 IEEE80211_MODE_AUTO);
2066 if (c == NULL)
2067 return EINVAL;
2068 }
2069
2070 /*
2071 * Fine tune channel selection based on desired mode:
2072 * if 11b is requested, find the 11b version of any
2073 * 11g channel returned,
2074 * if static turbo, find the turbo version of any
2075 * 11a channel return,
2076 * if 11na is requested, find the ht version of any
2077 * 11a channel returned,
2078 * if 11ng is requested, find the ht version of any
2079 * 11g channel returned,
2080 * if 11ac is requested, find the 11ac version
2081 * of any 11a/11na channel returned,
2082 * (TBD) 11acg (2GHz VHT)
2083 * otherwise we should be ok with what we've got.
2084 */
2085 switch (vap->iv_des_mode) {
2086 case IEEE80211_MODE_11B:
2087 if (IEEE80211_IS_CHAN_ANYG(c)) {
2088 c2 = findchannel(ic, ireq->i_val,
2089 IEEE80211_MODE_11B);
2090 /* NB: should not happen, =>'s 11g w/o 11b */
2091 if (c2 != NULL)
2092 c = c2;
2093 }
2094 break;
2095 case IEEE80211_MODE_TURBO_A:
2096 if (IEEE80211_IS_CHAN_A(c)) {
2097 c2 = findchannel(ic, ireq->i_val,
2098 IEEE80211_MODE_TURBO_A);
2099 if (c2 != NULL)
2100 c = c2;
2101 }
2102 break;
2103 case IEEE80211_MODE_11NA:
2104 if (IEEE80211_IS_CHAN_A(c)) {
2105 c2 = findchannel(ic, ireq->i_val,
2106 IEEE80211_MODE_11NA);
2107 if (c2 != NULL)
2108 c = c2;
2109 }
2110 break;
2111 case IEEE80211_MODE_11NG:
2112 if (IEEE80211_IS_CHAN_ANYG(c)) {
2113 c2 = findchannel(ic, ireq->i_val,
2114 IEEE80211_MODE_11NG);
2115 if (c2 != NULL)
2116 c = c2;
2117 }
2118 break;
2119 case IEEE80211_MODE_VHT_2GHZ:
2120 printf("%s: TBD\n", __func__);
2121 break;
2122 case IEEE80211_MODE_VHT_5GHZ:
2123 if (IEEE80211_IS_CHAN_A(c)) {
2124 c2 = findchannel(ic, ireq->i_val,
2125 IEEE80211_MODE_VHT_5GHZ);
2126 if (c2 != NULL)
2127 c = c2;
2128 }
2129 break;
2130 default: /* NB: no static turboG */
2131 break;
2132 }
2133 }
2134 return setcurchan(vap, c);
2135 }
2136
2137 /*
2138 * New/current api for setting the current channel; a complete
2139 * channel description is provide so there is no ambiguity in
2140 * identifying the channel.
2141 */
2142 static int
ieee80211_ioctl_setcurchan(struct ieee80211vap * vap,const struct ieee80211req * ireq)2143 ieee80211_ioctl_setcurchan(struct ieee80211vap *vap,
2144 const struct ieee80211req *ireq)
2145 {
2146 struct ieee80211com *ic = vap->iv_ic;
2147 struct ieee80211_channel chan, *c;
2148 int error;
2149
2150 if (ireq->i_len != sizeof(chan))
2151 return EINVAL;
2152 error = copyin(ireq->i_data, &chan, sizeof(chan));
2153 if (error != 0)
2154 return error;
2155
2156 /* XXX 0xffff overflows 16-bit signed */
2157 if (chan.ic_freq == 0 || chan.ic_freq == IEEE80211_CHAN_ANY) {
2158 c = IEEE80211_CHAN_ANYC;
2159 } else {
2160 c = ieee80211_find_channel(ic, chan.ic_freq, chan.ic_flags);
2161 if (c == NULL)
2162 return EINVAL;
2163 }
2164 return setcurchan(vap, c);
2165 }
2166
2167 static int
ieee80211_ioctl_setregdomain(struct ieee80211vap * vap,const struct ieee80211req * ireq)2168 ieee80211_ioctl_setregdomain(struct ieee80211vap *vap,
2169 const struct ieee80211req *ireq)
2170 {
2171 struct ieee80211_regdomain_req *reg;
2172 int nchans, error;
2173
2174 nchans = 1 + ((ireq->i_len - sizeof(struct ieee80211_regdomain_req)) /
2175 sizeof(struct ieee80211_channel));
2176 if (!(1 <= nchans && nchans <= IEEE80211_CHAN_MAX)) {
2177 IEEE80211_DPRINTF(vap, IEEE80211_MSG_IOCTL,
2178 "%s: bad # chans, i_len %d nchans %d\n", __func__,
2179 ireq->i_len, nchans);
2180 return EINVAL;
2181 }
2182 reg = (struct ieee80211_regdomain_req *)
2183 IEEE80211_MALLOC(IEEE80211_REGDOMAIN_SIZE(nchans), M_TEMP,
2184 IEEE80211_M_NOWAIT | IEEE80211_M_ZERO);
2185 if (reg == NULL) {
2186 IEEE80211_DPRINTF(vap, IEEE80211_MSG_IOCTL,
2187 "%s: no memory, nchans %d\n", __func__, nchans);
2188 return ENOMEM;
2189 }
2190 error = copyin(ireq->i_data, reg, IEEE80211_REGDOMAIN_SIZE(nchans));
2191 if (error == 0) {
2192 /* NB: validate inline channel count against storage size */
2193 if (reg->chaninfo.ic_nchans != nchans) {
2194 IEEE80211_DPRINTF(vap, IEEE80211_MSG_IOCTL,
2195 "%s: chan cnt mismatch, %d != %d\n", __func__,
2196 reg->chaninfo.ic_nchans, nchans);
2197 error = EINVAL;
2198 } else
2199 error = ieee80211_setregdomain(vap, reg);
2200 }
2201 IEEE80211_FREE(reg, M_TEMP);
2202
2203 return (error == 0 ? ENETRESET : error);
2204 }
2205
2206 static int
checkrate(const struct ieee80211_rateset * rs,int rate)2207 checkrate(const struct ieee80211_rateset *rs, int rate)
2208 {
2209 int i;
2210
2211 if (rate == IEEE80211_FIXED_RATE_NONE)
2212 return 1;
2213 for (i = 0; i < rs->rs_nrates; i++)
2214 if ((rs->rs_rates[i] & IEEE80211_RATE_VAL) == rate)
2215 return 1;
2216 return 0;
2217 }
2218
2219 static int
checkmcs(const struct ieee80211_htrateset * rs,int mcs)2220 checkmcs(const struct ieee80211_htrateset *rs, int mcs)
2221 {
2222 int rate_val = IEEE80211_RV(mcs);
2223 int i;
2224
2225 if (mcs == IEEE80211_FIXED_RATE_NONE)
2226 return 1;
2227 if ((mcs & IEEE80211_RATE_MCS) == 0) /* MCS always have 0x80 set */
2228 return 0;
2229 for (i = 0; i < rs->rs_nrates; i++)
2230 if (IEEE80211_RV(rs->rs_rates[i]) == rate_val)
2231 return 1;
2232 return 0;
2233 }
2234
2235 static int
ieee80211_ioctl_setroam(struct ieee80211vap * vap,const struct ieee80211req * ireq)2236 ieee80211_ioctl_setroam(struct ieee80211vap *vap,
2237 const struct ieee80211req *ireq)
2238 {
2239 struct ieee80211com *ic = vap->iv_ic;
2240 struct ieee80211_roamparams_req *parms;
2241 struct ieee80211_roamparam *src, *dst;
2242 const struct ieee80211_htrateset *rs_ht;
2243 const struct ieee80211_rateset *rs;
2244 int changed, error, mode, is11n, nmodes;
2245
2246 if (ireq->i_len != sizeof(vap->iv_roamparms))
2247 return EINVAL;
2248
2249 parms = IEEE80211_MALLOC(sizeof(*parms), M_TEMP,
2250 IEEE80211_M_NOWAIT | IEEE80211_M_ZERO);
2251 if (parms == NULL)
2252 return ENOMEM;
2253
2254 error = copyin(ireq->i_data, parms, ireq->i_len);
2255 if (error != 0)
2256 goto fail;
2257
2258 changed = 0;
2259 nmodes = IEEE80211_MODE_MAX;
2260
2261 /* validate parameters and check if anything changed */
2262 for (mode = IEEE80211_MODE_11A; mode < nmodes; mode++) {
2263 if (isclr(ic->ic_modecaps, mode))
2264 continue;
2265 src = &parms->params[mode];
2266 dst = &vap->iv_roamparms[mode];
2267 rs = &ic->ic_sup_rates[mode]; /* NB: 11n maps to legacy */
2268 rs_ht = &ic->ic_sup_htrates;
2269 is11n = (mode == IEEE80211_MODE_11NA ||
2270 mode == IEEE80211_MODE_11NG);
2271 /* XXX TODO: 11ac */
2272 if (src->rate != dst->rate) {
2273 if (!checkrate(rs, src->rate) &&
2274 (!is11n || !checkmcs(rs_ht, src->rate))) {
2275 error = EINVAL;
2276 goto fail;
2277 }
2278 changed++;
2279 }
2280 if (src->rssi != dst->rssi)
2281 changed++;
2282 }
2283 if (changed) {
2284 /*
2285 * Copy new parameters in place and notify the
2286 * driver so it can push state to the device.
2287 */
2288 /* XXX locking? */
2289 for (mode = IEEE80211_MODE_11A; mode < nmodes; mode++) {
2290 if (isset(ic->ic_modecaps, mode))
2291 vap->iv_roamparms[mode] = parms->params[mode];
2292 }
2293
2294 if (vap->iv_roaming == IEEE80211_ROAMING_DEVICE)
2295 error = ERESTART;
2296 }
2297
2298 fail: IEEE80211_FREE(parms, M_TEMP);
2299 return error;
2300 }
2301
2302 static int
ieee80211_ioctl_settxparams(struct ieee80211vap * vap,const struct ieee80211req * ireq)2303 ieee80211_ioctl_settxparams(struct ieee80211vap *vap,
2304 const struct ieee80211req *ireq)
2305 {
2306 struct ieee80211com *ic = vap->iv_ic;
2307 struct ieee80211_txparams_req parms; /* XXX stack use? */
2308 struct ieee80211_txparam *src, *dst;
2309 const struct ieee80211_htrateset *rs_ht;
2310 const struct ieee80211_rateset *rs;
2311 int error, mode, changed, is11n, nmodes;
2312
2313 /* NB: accept short requests for backwards compat */
2314 if (ireq->i_len > sizeof(parms))
2315 return EINVAL;
2316 error = copyin(ireq->i_data, &parms, ireq->i_len);
2317 if (error != 0)
2318 return error;
2319 nmodes = ireq->i_len / sizeof(struct ieee80211_txparam);
2320 changed = 0;
2321 /* validate parameters and check if anything changed */
2322 for (mode = IEEE80211_MODE_11A; mode < nmodes; mode++) {
2323 if (isclr(ic->ic_modecaps, mode))
2324 continue;
2325 src = &parms.params[mode];
2326 dst = &vap->iv_txparms[mode];
2327 rs = &ic->ic_sup_rates[mode]; /* NB: 11n maps to legacy */
2328 rs_ht = &ic->ic_sup_htrates;
2329 is11n = (mode == IEEE80211_MODE_11NA ||
2330 mode == IEEE80211_MODE_11NG);
2331 if (src->ucastrate != dst->ucastrate) {
2332 if (!checkrate(rs, src->ucastrate) &&
2333 (!is11n || !checkmcs(rs_ht, src->ucastrate)))
2334 return EINVAL;
2335 changed++;
2336 }
2337 if (src->mcastrate != dst->mcastrate) {
2338 if (!checkrate(rs, src->mcastrate) &&
2339 (!is11n || !checkmcs(rs_ht, src->mcastrate)))
2340 return EINVAL;
2341 changed++;
2342 }
2343 if (src->mgmtrate != dst->mgmtrate) {
2344 if (!checkrate(rs, src->mgmtrate) &&
2345 (!is11n || !checkmcs(rs_ht, src->mgmtrate)))
2346 return EINVAL;
2347 changed++;
2348 }
2349 if (src->maxretry != dst->maxretry) /* NB: no bounds */
2350 changed++;
2351 }
2352 if (changed) {
2353 /*
2354 * Copy new parameters in place and notify the
2355 * driver so it can push state to the device.
2356 */
2357 for (mode = IEEE80211_MODE_11A; mode < nmodes; mode++) {
2358 if (isset(ic->ic_modecaps, mode))
2359 vap->iv_txparms[mode] = parms.params[mode];
2360 }
2361 /* XXX could be more intelligent,
2362 e.g. don't reset if setting not being used */
2363 return ENETRESET;
2364 }
2365 return 0;
2366 }
2367
2368 /*
2369 * Application Information Element support.
2370 */
2371 static int
setappie(struct ieee80211_appie ** aie,const struct ieee80211req * ireq)2372 setappie(struct ieee80211_appie **aie, const struct ieee80211req *ireq)
2373 {
2374 struct ieee80211_appie *app = *aie;
2375 struct ieee80211_appie *napp;
2376 int error;
2377
2378 if (ireq->i_len == 0) { /* delete any existing ie */
2379 if (app != NULL) {
2380 *aie = NULL; /* XXX racey */
2381 IEEE80211_FREE(app, M_80211_NODE_IE);
2382 }
2383 return 0;
2384 }
2385 if (!(2 <= ireq->i_len && ireq->i_len <= IEEE80211_MAX_APPIE))
2386 return EINVAL;
2387 /*
2388 * Allocate a new appie structure and copy in the user data.
2389 * When done swap in the new structure. Note that we do not
2390 * guard against users holding a ref to the old structure;
2391 * this must be handled outside this code.
2392 *
2393 * XXX bad bad bad
2394 */
2395 napp = (struct ieee80211_appie *) IEEE80211_MALLOC(
2396 sizeof(struct ieee80211_appie) + ireq->i_len, M_80211_NODE_IE,
2397 IEEE80211_M_NOWAIT);
2398 if (napp == NULL)
2399 return ENOMEM;
2400 /* XXX holding ic lock */
2401 error = copyin(ireq->i_data, napp->ie_data, ireq->i_len);
2402 if (error) {
2403 IEEE80211_FREE(napp, M_80211_NODE_IE);
2404 return error;
2405 }
2406 napp->ie_len = ireq->i_len;
2407 *aie = napp;
2408 if (app != NULL)
2409 IEEE80211_FREE(app, M_80211_NODE_IE);
2410 return 0;
2411 }
2412
2413 static void
setwparsnie(struct ieee80211vap * vap,uint8_t * ie,int space)2414 setwparsnie(struct ieee80211vap *vap, uint8_t *ie, int space)
2415 {
2416 /* validate data is present as best we can */
2417 if (space == 0 || 2+ie[1] > space)
2418 return;
2419 if (ie[0] == IEEE80211_ELEMID_VENDOR)
2420 vap->iv_wpa_ie = ie;
2421 else if (ie[0] == IEEE80211_ELEMID_RSN)
2422 vap->iv_rsn_ie = ie;
2423 }
2424
2425 static int
ieee80211_ioctl_setappie_locked(struct ieee80211vap * vap,const struct ieee80211req * ireq,int fc0)2426 ieee80211_ioctl_setappie_locked(struct ieee80211vap *vap,
2427 const struct ieee80211req *ireq, int fc0)
2428 {
2429 int error;
2430
2431 IEEE80211_LOCK_ASSERT(vap->iv_ic);
2432
2433 switch (fc0 & IEEE80211_FC0_SUBTYPE_MASK) {
2434 case IEEE80211_FC0_SUBTYPE_BEACON:
2435 if (vap->iv_opmode != IEEE80211_M_HOSTAP &&
2436 vap->iv_opmode != IEEE80211_M_IBSS) {
2437 error = EINVAL;
2438 break;
2439 }
2440 error = setappie(&vap->iv_appie_beacon, ireq);
2441 if (error == 0)
2442 ieee80211_beacon_notify(vap, IEEE80211_BEACON_APPIE);
2443 break;
2444 case IEEE80211_FC0_SUBTYPE_PROBE_RESP:
2445 error = setappie(&vap->iv_appie_proberesp, ireq);
2446 break;
2447 case IEEE80211_FC0_SUBTYPE_ASSOC_RESP:
2448 if (vap->iv_opmode == IEEE80211_M_HOSTAP)
2449 error = setappie(&vap->iv_appie_assocresp, ireq);
2450 else
2451 error = EINVAL;
2452 break;
2453 case IEEE80211_FC0_SUBTYPE_PROBE_REQ:
2454 error = setappie(&vap->iv_appie_probereq, ireq);
2455 break;
2456 case IEEE80211_FC0_SUBTYPE_ASSOC_REQ:
2457 if (vap->iv_opmode == IEEE80211_M_STA)
2458 error = setappie(&vap->iv_appie_assocreq, ireq);
2459 else
2460 error = EINVAL;
2461 break;
2462 case (IEEE80211_APPIE_WPA & IEEE80211_FC0_SUBTYPE_MASK):
2463 error = setappie(&vap->iv_appie_wpa, ireq);
2464 if (error == 0) {
2465 /*
2466 * Must split single blob of data into separate
2467 * WPA and RSN ie's because they go in different
2468 * locations in the mgt frames.
2469 * XXX use IEEE80211_IOC_WPA2 so user code does split
2470 */
2471 vap->iv_wpa_ie = NULL;
2472 vap->iv_rsn_ie = NULL;
2473 if (vap->iv_appie_wpa != NULL) {
2474 struct ieee80211_appie *appie =
2475 vap->iv_appie_wpa;
2476 uint8_t *data = appie->ie_data;
2477
2478 /* XXX ie length validate is painful, cheat */
2479 setwparsnie(vap, data, appie->ie_len);
2480 setwparsnie(vap, data + 2 + data[1],
2481 appie->ie_len - (2 + data[1]));
2482 }
2483 if (vap->iv_opmode == IEEE80211_M_HOSTAP ||
2484 vap->iv_opmode == IEEE80211_M_IBSS) {
2485 /*
2486 * Must rebuild beacon frame as the update
2487 * mechanism doesn't handle WPA/RSN ie's.
2488 * Could extend it but it doesn't normally
2489 * change; this is just to deal with hostapd
2490 * plumbing the ie after the interface is up.
2491 */
2492 error = ENETRESET;
2493 }
2494 }
2495 break;
2496 default:
2497 error = EINVAL;
2498 break;
2499 }
2500 return error;
2501 }
2502
2503 static int
ieee80211_ioctl_setappie(struct ieee80211vap * vap,const struct ieee80211req * ireq)2504 ieee80211_ioctl_setappie(struct ieee80211vap *vap,
2505 const struct ieee80211req *ireq)
2506 {
2507 struct ieee80211com *ic = vap->iv_ic;
2508 int error;
2509 uint8_t fc0;
2510
2511 fc0 = ireq->i_val & 0xff;
2512 if ((fc0 & IEEE80211_FC0_TYPE_MASK) != IEEE80211_FC0_TYPE_MGT)
2513 return EINVAL;
2514 /* NB: could check iv_opmode and reject but hardly worth the effort */
2515 IEEE80211_LOCK(ic);
2516 error = ieee80211_ioctl_setappie_locked(vap, ireq, fc0);
2517 IEEE80211_UNLOCK(ic);
2518 return error;
2519 }
2520
2521 static int
ieee80211_ioctl_chanswitch(struct ieee80211vap * vap,struct ieee80211req * ireq)2522 ieee80211_ioctl_chanswitch(struct ieee80211vap *vap, struct ieee80211req *ireq)
2523 {
2524 struct ieee80211com *ic = vap->iv_ic;
2525 struct ieee80211_chanswitch_req csr;
2526 struct ieee80211_channel *c;
2527 int error;
2528
2529 if (ireq->i_len != sizeof(csr))
2530 return EINVAL;
2531 error = copyin(ireq->i_data, &csr, sizeof(csr));
2532 if (error != 0)
2533 return error;
2534 /* XXX adhoc mode not supported */
2535 if (vap->iv_opmode != IEEE80211_M_HOSTAP ||
2536 (vap->iv_flags & IEEE80211_F_DOTH) == 0)
2537 return EOPNOTSUPP;
2538 c = ieee80211_find_channel(ic,
2539 csr.csa_chan.ic_freq, csr.csa_chan.ic_flags);
2540 if (c == NULL)
2541 return ENOENT;
2542 IEEE80211_LOCK(ic);
2543 if ((ic->ic_flags & IEEE80211_F_CSAPENDING) == 0)
2544 ieee80211_csa_startswitch(ic, c, csr.csa_mode, csr.csa_count);
2545 else if (csr.csa_count == 0)
2546 ieee80211_csa_cancelswitch(ic);
2547 else
2548 error = EBUSY;
2549 IEEE80211_UNLOCK(ic);
2550 return error;
2551 }
2552
2553 static int
ieee80211_scanreq(struct ieee80211vap * vap,struct ieee80211_scan_req * sr)2554 ieee80211_scanreq(struct ieee80211vap *vap, struct ieee80211_scan_req *sr)
2555 {
2556 #define IEEE80211_IOC_SCAN_FLAGS \
2557 (IEEE80211_IOC_SCAN_NOPICK | IEEE80211_IOC_SCAN_ACTIVE | \
2558 IEEE80211_IOC_SCAN_PICK1ST | IEEE80211_IOC_SCAN_BGSCAN | \
2559 IEEE80211_IOC_SCAN_ONCE | IEEE80211_IOC_SCAN_NOBCAST | \
2560 IEEE80211_IOC_SCAN_NOJOIN | IEEE80211_IOC_SCAN_FLUSH | \
2561 IEEE80211_IOC_SCAN_CHECK)
2562 struct ieee80211com *ic = vap->iv_ic;
2563 int error, i;
2564
2565 /* convert duration */
2566 if (sr->sr_duration == IEEE80211_IOC_SCAN_FOREVER)
2567 sr->sr_duration = IEEE80211_SCAN_FOREVER;
2568 else {
2569 if (sr->sr_duration < IEEE80211_IOC_SCAN_DURATION_MIN ||
2570 sr->sr_duration > IEEE80211_IOC_SCAN_DURATION_MAX)
2571 return EINVAL;
2572 sr->sr_duration = msecs_to_ticks(sr->sr_duration);
2573 }
2574 /* convert min/max channel dwell */
2575 if (sr->sr_mindwell != 0)
2576 sr->sr_mindwell = msecs_to_ticks(sr->sr_mindwell);
2577 if (sr->sr_maxdwell != 0)
2578 sr->sr_maxdwell = msecs_to_ticks(sr->sr_maxdwell);
2579 /* NB: silently reduce ssid count to what is supported */
2580 if (sr->sr_nssid > IEEE80211_SCAN_MAX_SSID)
2581 sr->sr_nssid = IEEE80211_SCAN_MAX_SSID;
2582 for (i = 0; i < sr->sr_nssid; i++)
2583 if (sr->sr_ssid[i].len > IEEE80211_NWID_LEN)
2584 return EINVAL;
2585 /* cleanse flags just in case, could reject if invalid flags */
2586 sr->sr_flags &= IEEE80211_IOC_SCAN_FLAGS;
2587 /*
2588 * Add an implicit NOPICK if the vap is not marked UP. This
2589 * allows applications to scan without joining a bss (or picking
2590 * a channel and setting up a bss) and without forcing manual
2591 * roaming mode--you just need to mark the parent device UP.
2592 */
2593 if ((vap->iv_ifp->if_flags & IFF_UP) == 0)
2594 sr->sr_flags |= IEEE80211_IOC_SCAN_NOPICK;
2595
2596 IEEE80211_DPRINTF(vap, IEEE80211_MSG_SCAN,
2597 "%s: flags 0x%x%s duration 0x%x mindwell %u maxdwell %u nssid %d\n",
2598 __func__, sr->sr_flags,
2599 (vap->iv_ifp->if_flags & IFF_UP) == 0 ? " (!IFF_UP)" : "",
2600 sr->sr_duration, sr->sr_mindwell, sr->sr_maxdwell, sr->sr_nssid);
2601 /*
2602 * If we are in INIT state then the driver has never had a chance
2603 * to setup hardware state to do a scan; we must use the state
2604 * machine to get us up to the SCAN state but once we reach SCAN
2605 * state we then want to use the supplied params. Stash the
2606 * parameters in the vap and mark IEEE80211_FEXT_SCANREQ; the
2607 * state machines will recognize this and use the stashed params
2608 * to issue the scan request.
2609 *
2610 * Otherwise just invoke the scan machinery directly.
2611 */
2612 IEEE80211_LOCK(ic);
2613 if (ic->ic_nrunning == 0) {
2614 IEEE80211_UNLOCK(ic);
2615 return ENXIO;
2616 }
2617
2618 if (vap->iv_state == IEEE80211_S_INIT) {
2619 /* NB: clobbers previous settings */
2620 vap->iv_scanreq_flags = sr->sr_flags;
2621 vap->iv_scanreq_duration = sr->sr_duration;
2622 vap->iv_scanreq_nssid = sr->sr_nssid;
2623 for (i = 0; i < sr->sr_nssid; i++) {
2624 vap->iv_scanreq_ssid[i].len = sr->sr_ssid[i].len;
2625 memcpy(vap->iv_scanreq_ssid[i].ssid,
2626 sr->sr_ssid[i].ssid, sr->sr_ssid[i].len);
2627 }
2628 vap->iv_flags_ext |= IEEE80211_FEXT_SCANREQ;
2629 IEEE80211_UNLOCK(ic);
2630 ieee80211_new_state(vap, IEEE80211_S_SCAN, 0);
2631 } else {
2632 vap->iv_flags_ext &= ~IEEE80211_FEXT_SCANREQ;
2633 IEEE80211_UNLOCK(ic);
2634 if (sr->sr_flags & IEEE80211_IOC_SCAN_CHECK) {
2635 error = ieee80211_check_scan(vap, sr->sr_flags,
2636 sr->sr_duration, sr->sr_mindwell, sr->sr_maxdwell,
2637 sr->sr_nssid,
2638 /* NB: cheat, we assume structures are compatible */
2639 (const struct ieee80211_scan_ssid *) &sr->sr_ssid[0]);
2640 } else {
2641 error = ieee80211_start_scan(vap, sr->sr_flags,
2642 sr->sr_duration, sr->sr_mindwell, sr->sr_maxdwell,
2643 sr->sr_nssid,
2644 /* NB: cheat, we assume structures are compatible */
2645 (const struct ieee80211_scan_ssid *) &sr->sr_ssid[0]);
2646 }
2647 if (error == 0)
2648 return EINPROGRESS;
2649 }
2650 return 0;
2651 #undef IEEE80211_IOC_SCAN_FLAGS
2652 }
2653
2654 static int
ieee80211_ioctl_scanreq(struct ieee80211vap * vap,struct ieee80211req * ireq)2655 ieee80211_ioctl_scanreq(struct ieee80211vap *vap, struct ieee80211req *ireq)
2656 {
2657 struct ieee80211_scan_req *sr;
2658 int error;
2659
2660 if (ireq->i_len != sizeof(*sr))
2661 return EINVAL;
2662 sr = IEEE80211_MALLOC(sizeof(*sr), M_TEMP,
2663 IEEE80211_M_NOWAIT | IEEE80211_M_ZERO);
2664 if (sr == NULL)
2665 return ENOMEM;
2666 error = copyin(ireq->i_data, sr, sizeof(*sr));
2667 if (error != 0)
2668 goto bad;
2669 error = ieee80211_scanreq(vap, sr);
2670 bad:
2671 IEEE80211_FREE(sr, M_TEMP);
2672 return error;
2673 }
2674
2675 static int
ieee80211_ioctl_setstavlan(struct ieee80211vap * vap,struct ieee80211req * ireq)2676 ieee80211_ioctl_setstavlan(struct ieee80211vap *vap, struct ieee80211req *ireq)
2677 {
2678 struct ieee80211_node *ni;
2679 struct ieee80211req_sta_vlan vlan;
2680 int error;
2681
2682 if (ireq->i_len != sizeof(vlan))
2683 return EINVAL;
2684 error = copyin(ireq->i_data, &vlan, sizeof(vlan));
2685 if (error != 0)
2686 return error;
2687 if (!IEEE80211_ADDR_EQ(vlan.sv_macaddr, zerobssid)) {
2688 ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap,
2689 vlan.sv_macaddr);
2690 if (ni == NULL)
2691 return ENOENT;
2692 } else
2693 ni = ieee80211_ref_node(vap->iv_bss);
2694 ni->ni_vlan = vlan.sv_vlan;
2695 ieee80211_free_node(ni);
2696 return error;
2697 }
2698
2699 static int
isvap11g(const struct ieee80211vap * vap)2700 isvap11g(const struct ieee80211vap *vap)
2701 {
2702 const struct ieee80211_node *bss = vap->iv_bss;
2703 return bss->ni_chan != IEEE80211_CHAN_ANYC &&
2704 IEEE80211_IS_CHAN_ANYG(bss->ni_chan);
2705 }
2706
2707 static int
isvapht(const struct ieee80211vap * vap)2708 isvapht(const struct ieee80211vap *vap)
2709 {
2710 const struct ieee80211_node *bss = vap->iv_bss;
2711 return bss->ni_chan != IEEE80211_CHAN_ANYC &&
2712 IEEE80211_IS_CHAN_HT(bss->ni_chan);
2713 }
2714
2715 /*
2716 * Dummy ioctl set handler so the linker set is defined.
2717 */
2718 static int
dummy_ioctl_set(struct ieee80211vap * vap,struct ieee80211req * ireq)2719 dummy_ioctl_set(struct ieee80211vap *vap, struct ieee80211req *ireq)
2720 {
2721 return ENOSYS;
2722 }
2723 IEEE80211_IOCTL_SET(dummy, dummy_ioctl_set);
2724
2725 static int
ieee80211_ioctl_setdefault(struct ieee80211vap * vap,struct ieee80211req * ireq)2726 ieee80211_ioctl_setdefault(struct ieee80211vap *vap, struct ieee80211req *ireq)
2727 {
2728 ieee80211_ioctl_setfunc * const *set;
2729 int error;
2730
2731 SET_FOREACH(set, ieee80211_ioctl_setset) {
2732 error = (*set)(vap, ireq);
2733 if (error != ENOSYS)
2734 return error;
2735 }
2736 return EINVAL;
2737 }
2738
2739 static int
ieee80211_ioctl_set80211(struct ieee80211vap * vap,u_long cmd,struct ieee80211req * ireq)2740 ieee80211_ioctl_set80211(struct ieee80211vap *vap, u_long cmd, struct ieee80211req *ireq)
2741 {
2742 struct ieee80211com *ic = vap->iv_ic;
2743 int error;
2744 const struct ieee80211_authenticator *auth;
2745 uint8_t tmpkey[IEEE80211_KEYBUF_SIZE];
2746 char tmpssid[IEEE80211_NWID_LEN];
2747 uint8_t tmpbssid[IEEE80211_ADDR_LEN];
2748 struct ieee80211_key *k;
2749 u_int kid;
2750 uint32_t flags;
2751
2752 error = 0;
2753 switch (ireq->i_type) {
2754 case IEEE80211_IOC_SSID:
2755 if (ireq->i_val != 0 ||
2756 ireq->i_len > IEEE80211_NWID_LEN)
2757 return EINVAL;
2758 error = copyin(ireq->i_data, tmpssid, ireq->i_len);
2759 if (error)
2760 break;
2761 memset(vap->iv_des_ssid[0].ssid, 0, IEEE80211_NWID_LEN);
2762 vap->iv_des_ssid[0].len = ireq->i_len;
2763 memcpy(vap->iv_des_ssid[0].ssid, tmpssid, ireq->i_len);
2764 vap->iv_des_nssid = (ireq->i_len > 0);
2765 error = ENETRESET;
2766 break;
2767 case IEEE80211_IOC_WEP:
2768 switch (ireq->i_val) {
2769 case IEEE80211_WEP_OFF:
2770 vap->iv_flags &= ~IEEE80211_F_PRIVACY;
2771 vap->iv_flags &= ~IEEE80211_F_DROPUNENC;
2772 break;
2773 case IEEE80211_WEP_ON:
2774 vap->iv_flags |= IEEE80211_F_PRIVACY;
2775 vap->iv_flags |= IEEE80211_F_DROPUNENC;
2776 break;
2777 case IEEE80211_WEP_MIXED:
2778 vap->iv_flags |= IEEE80211_F_PRIVACY;
2779 vap->iv_flags &= ~IEEE80211_F_DROPUNENC;
2780 break;
2781 }
2782 error = ENETRESET;
2783 break;
2784 case IEEE80211_IOC_WEPKEY:
2785 kid = (u_int) ireq->i_val;
2786 if (kid >= IEEE80211_WEP_NKID)
2787 return EINVAL;
2788 k = &vap->iv_nw_keys[kid];
2789 if (ireq->i_len == 0) {
2790 /* zero-len =>'s delete any existing key */
2791 (void) ieee80211_crypto_delkey(vap, k);
2792 break;
2793 }
2794 if (ireq->i_len > sizeof(tmpkey))
2795 return EINVAL;
2796 memset(tmpkey, 0, sizeof(tmpkey));
2797 error = copyin(ireq->i_data, tmpkey, ireq->i_len);
2798 if (error)
2799 break;
2800 ieee80211_key_update_begin(vap);
2801 k->wk_keyix = kid; /* NB: force fixed key id */
2802 if (ieee80211_crypto_newkey(vap, IEEE80211_CIPHER_WEP,
2803 IEEE80211_KEY_XMIT | IEEE80211_KEY_RECV, k)) {
2804 k->wk_keylen = ireq->i_len;
2805 memcpy(k->wk_key, tmpkey, sizeof(tmpkey));
2806 IEEE80211_ADDR_COPY(k->wk_macaddr, vap->iv_myaddr);
2807 if (!ieee80211_crypto_setkey(vap, k))
2808 error = EINVAL;
2809 } else
2810 error = EINVAL;
2811 ieee80211_key_update_end(vap);
2812 break;
2813 case IEEE80211_IOC_WEPTXKEY:
2814 kid = (u_int) ireq->i_val;
2815 if (kid >= IEEE80211_WEP_NKID &&
2816 (uint16_t) kid != IEEE80211_KEYIX_NONE)
2817 return EINVAL;
2818 /*
2819 * Firmware devices may need to be told about an explicit
2820 * key index here, versus just inferring it from the
2821 * key set / change. Since we may also need to pause
2822 * things like transmit before the key is updated,
2823 * give the driver a chance to flush things by tying
2824 * into key update begin/end.
2825 */
2826 ieee80211_key_update_begin(vap);
2827 ieee80211_crypto_set_deftxkey(vap, kid);
2828 ieee80211_key_update_end(vap);
2829 break;
2830 case IEEE80211_IOC_AUTHMODE:
2831 switch (ireq->i_val) {
2832 case IEEE80211_AUTH_WPA:
2833 case IEEE80211_AUTH_8021X: /* 802.1x */
2834 case IEEE80211_AUTH_OPEN: /* open */
2835 case IEEE80211_AUTH_SHARED: /* shared-key */
2836 case IEEE80211_AUTH_AUTO: /* auto */
2837 auth = ieee80211_authenticator_get(ireq->i_val);
2838 if (auth == NULL)
2839 return EINVAL;
2840 break;
2841 default:
2842 return EINVAL;
2843 }
2844 switch (ireq->i_val) {
2845 case IEEE80211_AUTH_WPA: /* WPA w/ 802.1x */
2846 vap->iv_flags |= IEEE80211_F_PRIVACY;
2847 ireq->i_val = IEEE80211_AUTH_8021X;
2848 break;
2849 case IEEE80211_AUTH_OPEN: /* open */
2850 vap->iv_flags &= ~(IEEE80211_F_WPA|IEEE80211_F_PRIVACY);
2851 break;
2852 case IEEE80211_AUTH_SHARED: /* shared-key */
2853 case IEEE80211_AUTH_8021X: /* 802.1x */
2854 vap->iv_flags &= ~IEEE80211_F_WPA;
2855 /* both require a key so mark the PRIVACY capability */
2856 vap->iv_flags |= IEEE80211_F_PRIVACY;
2857 break;
2858 case IEEE80211_AUTH_AUTO: /* auto */
2859 vap->iv_flags &= ~IEEE80211_F_WPA;
2860 /* XXX PRIVACY handling? */
2861 /* XXX what's the right way to do this? */
2862 break;
2863 }
2864 /* NB: authenticator attach/detach happens on state change */
2865 vap->iv_bss->ni_authmode = ireq->i_val;
2866 /* XXX mixed/mode/usage? */
2867 vap->iv_auth = auth;
2868 error = ENETRESET;
2869 break;
2870 case IEEE80211_IOC_CHANNEL:
2871 error = ieee80211_ioctl_setchannel(vap, ireq);
2872 break;
2873 case IEEE80211_IOC_POWERSAVE:
2874 switch (ireq->i_val) {
2875 case IEEE80211_POWERSAVE_OFF:
2876 if (vap->iv_flags & IEEE80211_F_PMGTON) {
2877 ieee80211_syncflag(vap, -IEEE80211_F_PMGTON);
2878 error = ERESTART;
2879 }
2880 break;
2881 case IEEE80211_POWERSAVE_ON:
2882 if ((vap->iv_caps & IEEE80211_C_PMGT) == 0)
2883 error = EOPNOTSUPP;
2884 else if ((vap->iv_flags & IEEE80211_F_PMGTON) == 0) {
2885 ieee80211_syncflag(vap, IEEE80211_F_PMGTON);
2886 error = ERESTART;
2887 }
2888 break;
2889 default:
2890 error = EINVAL;
2891 break;
2892 }
2893 break;
2894 case IEEE80211_IOC_POWERSAVESLEEP:
2895 if (ireq->i_val < 0)
2896 return EINVAL;
2897 ic->ic_lintval = ireq->i_val;
2898 error = ERESTART;
2899 break;
2900 case IEEE80211_IOC_RTSTHRESHOLD:
2901 if (!(IEEE80211_RTS_MIN <= ireq->i_val &&
2902 ireq->i_val <= IEEE80211_RTS_MAX))
2903 return EINVAL;
2904 vap->iv_rtsthreshold = ireq->i_val;
2905 error = ERESTART;
2906 break;
2907 case IEEE80211_IOC_PROTMODE:
2908 if (ireq->i_val > IEEE80211_PROT_RTSCTS)
2909 return EINVAL;
2910 ic->ic_protmode = (enum ieee80211_protmode)ireq->i_val;
2911 /* NB: if not operating in 11g this can wait */
2912 if (ic->ic_bsschan != IEEE80211_CHAN_ANYC &&
2913 IEEE80211_IS_CHAN_ANYG(ic->ic_bsschan))
2914 error = ERESTART;
2915 break;
2916 case IEEE80211_IOC_TXPOWER:
2917 if ((ic->ic_caps & IEEE80211_C_TXPMGT) == 0)
2918 return EOPNOTSUPP;
2919 if (!(IEEE80211_TXPOWER_MIN <= ireq->i_val &&
2920 ireq->i_val <= IEEE80211_TXPOWER_MAX))
2921 return EINVAL;
2922 ic->ic_txpowlimit = ireq->i_val;
2923 error = ERESTART;
2924 break;
2925 case IEEE80211_IOC_ROAMING:
2926 if (!(IEEE80211_ROAMING_DEVICE <= ireq->i_val &&
2927 ireq->i_val <= IEEE80211_ROAMING_MANUAL))
2928 return EINVAL;
2929 vap->iv_roaming = (enum ieee80211_roamingmode)ireq->i_val;
2930 /* XXXX reset? */
2931 break;
2932 case IEEE80211_IOC_PRIVACY:
2933 if (ireq->i_val) {
2934 /* XXX check for key state? */
2935 vap->iv_flags |= IEEE80211_F_PRIVACY;
2936 } else
2937 vap->iv_flags &= ~IEEE80211_F_PRIVACY;
2938 /* XXX ERESTART? */
2939 break;
2940 case IEEE80211_IOC_DROPUNENCRYPTED:
2941 if (ireq->i_val)
2942 vap->iv_flags |= IEEE80211_F_DROPUNENC;
2943 else
2944 vap->iv_flags &= ~IEEE80211_F_DROPUNENC;
2945 /* XXX ERESTART? */
2946 break;
2947 case IEEE80211_IOC_WPAKEY:
2948 error = ieee80211_ioctl_setkey(vap, ireq);
2949 break;
2950 case IEEE80211_IOC_DELKEY:
2951 error = ieee80211_ioctl_delkey(vap, ireq);
2952 break;
2953 case IEEE80211_IOC_MLME:
2954 error = ieee80211_ioctl_setmlme(vap, ireq);
2955 break;
2956 case IEEE80211_IOC_COUNTERMEASURES:
2957 if (ireq->i_val) {
2958 if ((vap->iv_flags & IEEE80211_F_WPA) == 0)
2959 return EOPNOTSUPP;
2960 vap->iv_flags |= IEEE80211_F_COUNTERM;
2961 } else
2962 vap->iv_flags &= ~IEEE80211_F_COUNTERM;
2963 /* XXX ERESTART? */
2964 break;
2965 case IEEE80211_IOC_WPA:
2966 if (ireq->i_val > 3)
2967 return EINVAL;
2968 /* XXX verify ciphers available */
2969 flags = vap->iv_flags & ~IEEE80211_F_WPA;
2970 switch (ireq->i_val) {
2971 case 0:
2972 /* wpa_supplicant calls this to clear the WPA config */
2973 break;
2974 case 1:
2975 if (!(vap->iv_caps & IEEE80211_C_WPA1))
2976 return EOPNOTSUPP;
2977 flags |= IEEE80211_F_WPA1;
2978 break;
2979 case 2:
2980 if (!(vap->iv_caps & IEEE80211_C_WPA2))
2981 return EOPNOTSUPP;
2982 flags |= IEEE80211_F_WPA2;
2983 break;
2984 case 3:
2985 if ((vap->iv_caps & IEEE80211_C_WPA) != IEEE80211_C_WPA)
2986 return EOPNOTSUPP;
2987 flags |= IEEE80211_F_WPA1 | IEEE80211_F_WPA2;
2988 break;
2989 default: /* Can't set any -> error */
2990 return EOPNOTSUPP;
2991 }
2992 vap->iv_flags = flags;
2993 error = ERESTART; /* NB: can change beacon frame */
2994 break;
2995 case IEEE80211_IOC_WME:
2996 if (ireq->i_val) {
2997 if ((vap->iv_caps & IEEE80211_C_WME) == 0)
2998 return EOPNOTSUPP;
2999 ieee80211_syncflag(vap, IEEE80211_F_WME);
3000 } else
3001 ieee80211_syncflag(vap, -IEEE80211_F_WME);
3002 error = ERESTART; /* NB: can change beacon frame */
3003 break;
3004 case IEEE80211_IOC_HIDESSID:
3005 if (ireq->i_val)
3006 vap->iv_flags |= IEEE80211_F_HIDESSID;
3007 else
3008 vap->iv_flags &= ~IEEE80211_F_HIDESSID;
3009 error = ERESTART; /* XXX ENETRESET? */
3010 break;
3011 case IEEE80211_IOC_APBRIDGE:
3012 if (ireq->i_val == 0)
3013 vap->iv_flags |= IEEE80211_F_NOBRIDGE;
3014 else
3015 vap->iv_flags &= ~IEEE80211_F_NOBRIDGE;
3016 break;
3017 case IEEE80211_IOC_BSSID:
3018 if (ireq->i_len != sizeof(tmpbssid))
3019 return EINVAL;
3020 error = copyin(ireq->i_data, tmpbssid, ireq->i_len);
3021 if (error)
3022 break;
3023 IEEE80211_ADDR_COPY(vap->iv_des_bssid, tmpbssid);
3024 if (IEEE80211_ADDR_EQ(vap->iv_des_bssid, zerobssid))
3025 vap->iv_flags &= ~IEEE80211_F_DESBSSID;
3026 else
3027 vap->iv_flags |= IEEE80211_F_DESBSSID;
3028 error = ENETRESET;
3029 break;
3030 case IEEE80211_IOC_CHANLIST:
3031 error = ieee80211_ioctl_setchanlist(vap, ireq);
3032 break;
3033 #define OLD_IEEE80211_IOC_SCAN_REQ 23
3034 #ifdef OLD_IEEE80211_IOC_SCAN_REQ
3035 case OLD_IEEE80211_IOC_SCAN_REQ:
3036 IEEE80211_DPRINTF(vap, IEEE80211_MSG_SCAN,
3037 "%s: active scan request\n", __func__);
3038 /*
3039 * If we are in INIT state then the driver has never
3040 * had a chance to setup hardware state to do a scan;
3041 * use the state machine to get us up the SCAN state.
3042 * Otherwise just invoke the scan machinery to start
3043 * a one-time scan.
3044 */
3045 if (vap->iv_state == IEEE80211_S_INIT)
3046 ieee80211_new_state(vap, IEEE80211_S_SCAN, 0);
3047 else
3048 (void) ieee80211_start_scan(vap,
3049 IEEE80211_SCAN_ACTIVE |
3050 IEEE80211_SCAN_NOPICK |
3051 IEEE80211_SCAN_ONCE,
3052 IEEE80211_SCAN_FOREVER, 0, 0,
3053 /* XXX use ioctl params */
3054 vap->iv_des_nssid, vap->iv_des_ssid);
3055 break;
3056 #endif /* OLD_IEEE80211_IOC_SCAN_REQ */
3057 case IEEE80211_IOC_SCAN_REQ:
3058 error = ieee80211_ioctl_scanreq(vap, ireq);
3059 break;
3060 case IEEE80211_IOC_SCAN_CANCEL:
3061 IEEE80211_DPRINTF(vap, IEEE80211_MSG_SCAN,
3062 "%s: cancel scan\n", __func__);
3063 ieee80211_cancel_scan(vap);
3064 break;
3065 case IEEE80211_IOC_HTCONF:
3066 if (ireq->i_val & 1)
3067 ieee80211_syncflag_ht(vap, IEEE80211_FHT_HT);
3068 else
3069 ieee80211_syncflag_ht(vap, -IEEE80211_FHT_HT);
3070 if (ireq->i_val & 2)
3071 ieee80211_syncflag_ht(vap, IEEE80211_FHT_USEHT40);
3072 else
3073 ieee80211_syncflag_ht(vap, -IEEE80211_FHT_USEHT40);
3074 error = ENETRESET;
3075 break;
3076 case IEEE80211_IOC_ADDMAC:
3077 case IEEE80211_IOC_DELMAC:
3078 error = ieee80211_ioctl_macmac(vap, ireq);
3079 break;
3080 case IEEE80211_IOC_MACCMD:
3081 error = ieee80211_ioctl_setmaccmd(vap, ireq);
3082 break;
3083 case IEEE80211_IOC_STA_STATS:
3084 error = ieee80211_ioctl_setstastats(vap, ireq);
3085 break;
3086 case IEEE80211_IOC_STA_TXPOW:
3087 error = ieee80211_ioctl_setstatxpow(vap, ireq);
3088 break;
3089 case IEEE80211_IOC_WME_CWMIN: /* WME: CWmin */
3090 case IEEE80211_IOC_WME_CWMAX: /* WME: CWmax */
3091 case IEEE80211_IOC_WME_AIFS: /* WME: AIFS */
3092 case IEEE80211_IOC_WME_TXOPLIMIT: /* WME: txops limit */
3093 case IEEE80211_IOC_WME_ACM: /* WME: ACM (bss only) */
3094 case IEEE80211_IOC_WME_ACKPOLICY: /* WME: ACK policy (!bss only) */
3095 error = ieee80211_ioctl_setwmeparam(vap, ireq);
3096 break;
3097 case IEEE80211_IOC_DTIM_PERIOD:
3098 if (vap->iv_opmode != IEEE80211_M_HOSTAP &&
3099 vap->iv_opmode != IEEE80211_M_MBSS &&
3100 vap->iv_opmode != IEEE80211_M_IBSS)
3101 return EINVAL;
3102 if (IEEE80211_DTIM_MIN <= ireq->i_val &&
3103 ireq->i_val <= IEEE80211_DTIM_MAX) {
3104 vap->iv_dtim_period = ireq->i_val;
3105 error = ENETRESET; /* requires restart */
3106 } else
3107 error = EINVAL;
3108 break;
3109 case IEEE80211_IOC_BEACON_INTERVAL:
3110 if (vap->iv_opmode != IEEE80211_M_HOSTAP &&
3111 vap->iv_opmode != IEEE80211_M_MBSS &&
3112 vap->iv_opmode != IEEE80211_M_IBSS)
3113 return EINVAL;
3114 if (IEEE80211_BINTVAL_MIN <= ireq->i_val &&
3115 ireq->i_val <= IEEE80211_BINTVAL_MAX) {
3116 ic->ic_bintval = ireq->i_val;
3117 error = ENETRESET; /* requires restart */
3118 } else
3119 error = EINVAL;
3120 break;
3121 case IEEE80211_IOC_PUREG:
3122 if (ireq->i_val)
3123 vap->iv_flags |= IEEE80211_F_PUREG;
3124 else
3125 vap->iv_flags &= ~IEEE80211_F_PUREG;
3126 /* NB: reset only if we're operating on an 11g channel */
3127 if (isvap11g(vap))
3128 error = ENETRESET;
3129 break;
3130 case IEEE80211_IOC_QUIET:
3131 vap->iv_quiet= ireq->i_val;
3132 break;
3133 case IEEE80211_IOC_QUIET_COUNT:
3134 vap->iv_quiet_count=ireq->i_val;
3135 break;
3136 case IEEE80211_IOC_QUIET_PERIOD:
3137 vap->iv_quiet_period=ireq->i_val;
3138 break;
3139 case IEEE80211_IOC_QUIET_OFFSET:
3140 vap->iv_quiet_offset=ireq->i_val;
3141 break;
3142 case IEEE80211_IOC_QUIET_DUR:
3143 if(ireq->i_val < vap->iv_bss->ni_intval)
3144 vap->iv_quiet_duration = ireq->i_val;
3145 else
3146 error = EINVAL;
3147 break;
3148 case IEEE80211_IOC_BGSCAN:
3149 if (ireq->i_val) {
3150 if ((vap->iv_caps & IEEE80211_C_BGSCAN) == 0)
3151 return EOPNOTSUPP;
3152 vap->iv_flags |= IEEE80211_F_BGSCAN;
3153 } else
3154 vap->iv_flags &= ~IEEE80211_F_BGSCAN;
3155 break;
3156 case IEEE80211_IOC_BGSCAN_IDLE:
3157 if (ireq->i_val >= IEEE80211_BGSCAN_IDLE_MIN)
3158 vap->iv_bgscanidle = ireq->i_val*hz/1000;
3159 else
3160 error = EINVAL;
3161 break;
3162 case IEEE80211_IOC_BGSCAN_INTERVAL:
3163 if (ireq->i_val >= IEEE80211_BGSCAN_INTVAL_MIN)
3164 vap->iv_bgscanintvl = ireq->i_val*hz;
3165 else
3166 error = EINVAL;
3167 break;
3168 case IEEE80211_IOC_SCANVALID:
3169 if (ireq->i_val >= IEEE80211_SCAN_VALID_MIN)
3170 vap->iv_scanvalid = ireq->i_val*hz;
3171 else
3172 error = EINVAL;
3173 break;
3174 case IEEE80211_IOC_FRAGTHRESHOLD:
3175 if ((vap->iv_caps & IEEE80211_C_TXFRAG) == 0 &&
3176 ireq->i_val != IEEE80211_FRAG_MAX)
3177 return EOPNOTSUPP;
3178 if (!(IEEE80211_FRAG_MIN <= ireq->i_val &&
3179 ireq->i_val <= IEEE80211_FRAG_MAX))
3180 return EINVAL;
3181 vap->iv_fragthreshold = ireq->i_val;
3182 error = ERESTART;
3183 break;
3184 case IEEE80211_IOC_BURST:
3185 if (ireq->i_val) {
3186 if ((vap->iv_caps & IEEE80211_C_BURST) == 0)
3187 return EOPNOTSUPP;
3188 ieee80211_syncflag(vap, IEEE80211_F_BURST);
3189 } else
3190 ieee80211_syncflag(vap, -IEEE80211_F_BURST);
3191 error = ERESTART;
3192 break;
3193 case IEEE80211_IOC_BMISSTHRESHOLD:
3194 if (!(IEEE80211_HWBMISS_MIN <= ireq->i_val &&
3195 ireq->i_val <= IEEE80211_HWBMISS_MAX))
3196 return EINVAL;
3197 vap->iv_bmissthreshold = ireq->i_val;
3198 error = ERESTART;
3199 break;
3200 case IEEE80211_IOC_CURCHAN:
3201 error = ieee80211_ioctl_setcurchan(vap, ireq);
3202 break;
3203 case IEEE80211_IOC_SHORTGI:
3204 if (ireq->i_val) {
3205 #define IEEE80211_HTCAP_SHORTGI \
3206 (IEEE80211_HTCAP_SHORTGI20 | IEEE80211_HTCAP_SHORTGI40)
3207 if (((ireq->i_val ^ vap->iv_htcaps) & IEEE80211_HTCAP_SHORTGI) != 0)
3208 return EINVAL;
3209 if (ireq->i_val & IEEE80211_HTCAP_SHORTGI20)
3210 vap->iv_flags_ht |= IEEE80211_FHT_SHORTGI20;
3211 if (ireq->i_val & IEEE80211_HTCAP_SHORTGI40)
3212 vap->iv_flags_ht |= IEEE80211_FHT_SHORTGI40;
3213 #undef IEEE80211_HTCAP_SHORTGI
3214 } else
3215 vap->iv_flags_ht &=
3216 ~(IEEE80211_FHT_SHORTGI20 | IEEE80211_FHT_SHORTGI40);
3217 error = ERESTART;
3218 break;
3219 case IEEE80211_IOC_AMPDU:
3220 if (ireq->i_val && (vap->iv_htcaps & IEEE80211_HTC_AMPDU) == 0)
3221 return EINVAL;
3222 if (ireq->i_val & 1)
3223 vap->iv_flags_ht |= IEEE80211_FHT_AMPDU_TX;
3224 else
3225 vap->iv_flags_ht &= ~IEEE80211_FHT_AMPDU_TX;
3226 if (ireq->i_val & 2)
3227 vap->iv_flags_ht |= IEEE80211_FHT_AMPDU_RX;
3228 else
3229 vap->iv_flags_ht &= ~IEEE80211_FHT_AMPDU_RX;
3230 /* NB: reset only if we're operating on an 11n channel */
3231 if (isvapht(vap))
3232 error = ERESTART;
3233 break;
3234 case IEEE80211_IOC_AMPDU_LIMIT:
3235 /* XXX TODO: figure out ampdu_limit versus ampdu_rxmax */
3236 if (!(IEEE80211_HTCAP_MAXRXAMPDU_8K <= ireq->i_val &&
3237 ireq->i_val <= IEEE80211_HTCAP_MAXRXAMPDU_64K))
3238 return EINVAL;
3239 if (vap->iv_opmode == IEEE80211_M_HOSTAP)
3240 vap->iv_ampdu_rxmax = ireq->i_val;
3241 else
3242 vap->iv_ampdu_limit = ireq->i_val;
3243 error = ERESTART;
3244 break;
3245 case IEEE80211_IOC_AMPDU_DENSITY:
3246 if (!(IEEE80211_HTCAP_MPDUDENSITY_NA <= ireq->i_val &&
3247 ireq->i_val <= IEEE80211_HTCAP_MPDUDENSITY_16))
3248 return EINVAL;
3249 vap->iv_ampdu_density = ireq->i_val;
3250 error = ERESTART;
3251 break;
3252 case IEEE80211_IOC_AMSDU:
3253 if (ireq->i_val && (vap->iv_htcaps & IEEE80211_HTC_AMSDU) == 0)
3254 return EINVAL;
3255 if (ireq->i_val & 1)
3256 vap->iv_flags_ht |= IEEE80211_FHT_AMSDU_TX;
3257 else
3258 vap->iv_flags_ht &= ~IEEE80211_FHT_AMSDU_TX;
3259 if (ireq->i_val & 2)
3260 vap->iv_flags_ht |= IEEE80211_FHT_AMSDU_RX;
3261 else
3262 vap->iv_flags_ht &= ~IEEE80211_FHT_AMSDU_RX;
3263 /* NB: reset only if we're operating on an 11n channel */
3264 if (isvapht(vap))
3265 error = ERESTART;
3266 break;
3267 case IEEE80211_IOC_AMSDU_LIMIT:
3268 /* XXX validate */
3269 vap->iv_amsdu_limit = ireq->i_val; /* XXX truncation? */
3270 break;
3271 case IEEE80211_IOC_PUREN:
3272 if (ireq->i_val) {
3273 if ((vap->iv_flags_ht & IEEE80211_FHT_HT) == 0)
3274 return EINVAL;
3275 vap->iv_flags_ht |= IEEE80211_FHT_PUREN;
3276 } else
3277 vap->iv_flags_ht &= ~IEEE80211_FHT_PUREN;
3278 /* NB: reset only if we're operating on an 11n channel */
3279 if (isvapht(vap))
3280 error = ERESTART;
3281 break;
3282 case IEEE80211_IOC_DOTH:
3283 if (ireq->i_val) {
3284 #if 0
3285 /* XXX no capability */
3286 if ((vap->iv_caps & IEEE80211_C_DOTH) == 0)
3287 return EOPNOTSUPP;
3288 #endif
3289 vap->iv_flags |= IEEE80211_F_DOTH;
3290 } else
3291 vap->iv_flags &= ~IEEE80211_F_DOTH;
3292 error = ENETRESET;
3293 break;
3294 case IEEE80211_IOC_REGDOMAIN:
3295 error = ieee80211_ioctl_setregdomain(vap, ireq);
3296 break;
3297 case IEEE80211_IOC_ROAM:
3298 error = ieee80211_ioctl_setroam(vap, ireq);
3299 break;
3300 case IEEE80211_IOC_TXPARAMS:
3301 error = ieee80211_ioctl_settxparams(vap, ireq);
3302 break;
3303 case IEEE80211_IOC_HTCOMPAT:
3304 if (ireq->i_val) {
3305 if ((vap->iv_flags_ht & IEEE80211_FHT_HT) == 0)
3306 return EOPNOTSUPP;
3307 vap->iv_flags_ht |= IEEE80211_FHT_HTCOMPAT;
3308 } else
3309 vap->iv_flags_ht &= ~IEEE80211_FHT_HTCOMPAT;
3310 /* NB: reset only if we're operating on an 11n channel */
3311 if (isvapht(vap))
3312 error = ERESTART;
3313 break;
3314 case IEEE80211_IOC_DWDS:
3315 if (ireq->i_val) {
3316 /* NB: DWDS only makes sense for WDS-capable devices */
3317 if ((ic->ic_caps & IEEE80211_C_WDS) == 0)
3318 return EOPNOTSUPP;
3319 /* NB: DWDS is used only with ap+sta vaps */
3320 if (vap->iv_opmode != IEEE80211_M_HOSTAP &&
3321 vap->iv_opmode != IEEE80211_M_STA)
3322 return EINVAL;
3323 vap->iv_flags |= IEEE80211_F_DWDS;
3324 if (vap->iv_opmode == IEEE80211_M_STA)
3325 vap->iv_flags_ext |= IEEE80211_FEXT_4ADDR;
3326 } else {
3327 vap->iv_flags &= ~IEEE80211_F_DWDS;
3328 if (vap->iv_opmode == IEEE80211_M_STA)
3329 vap->iv_flags_ext &= ~IEEE80211_FEXT_4ADDR;
3330 }
3331 break;
3332 case IEEE80211_IOC_INACTIVITY:
3333 if (ireq->i_val)
3334 vap->iv_flags_ext |= IEEE80211_FEXT_INACT;
3335 else
3336 vap->iv_flags_ext &= ~IEEE80211_FEXT_INACT;
3337 break;
3338 case IEEE80211_IOC_APPIE:
3339 error = ieee80211_ioctl_setappie(vap, ireq);
3340 break;
3341 case IEEE80211_IOC_WPS:
3342 if (ireq->i_val) {
3343 if ((vap->iv_caps & IEEE80211_C_WPA) == 0)
3344 return EOPNOTSUPP;
3345 vap->iv_flags_ext |= IEEE80211_FEXT_WPS;
3346 } else
3347 vap->iv_flags_ext &= ~IEEE80211_FEXT_WPS;
3348 break;
3349 case IEEE80211_IOC_TSN:
3350 if (ireq->i_val) {
3351 if ((vap->iv_caps & IEEE80211_C_WPA) == 0)
3352 return EOPNOTSUPP;
3353 vap->iv_flags_ext |= IEEE80211_FEXT_TSN;
3354 } else
3355 vap->iv_flags_ext &= ~IEEE80211_FEXT_TSN;
3356 break;
3357 case IEEE80211_IOC_CHANSWITCH:
3358 error = ieee80211_ioctl_chanswitch(vap, ireq);
3359 break;
3360 case IEEE80211_IOC_DFS:
3361 if (ireq->i_val) {
3362 if ((vap->iv_caps & IEEE80211_C_DFS) == 0)
3363 return EOPNOTSUPP;
3364 /* NB: DFS requires 11h support */
3365 if ((vap->iv_flags & IEEE80211_F_DOTH) == 0)
3366 return EINVAL;
3367 vap->iv_flags_ext |= IEEE80211_FEXT_DFS;
3368 } else
3369 vap->iv_flags_ext &= ~IEEE80211_FEXT_DFS;
3370 break;
3371 case IEEE80211_IOC_DOTD:
3372 if (ireq->i_val)
3373 vap->iv_flags_ext |= IEEE80211_FEXT_DOTD;
3374 else
3375 vap->iv_flags_ext &= ~IEEE80211_FEXT_DOTD;
3376 if (vap->iv_opmode == IEEE80211_M_STA)
3377 error = ENETRESET;
3378 break;
3379 case IEEE80211_IOC_HTPROTMODE:
3380 if (ireq->i_val > IEEE80211_PROT_RTSCTS)
3381 return EINVAL;
3382 ic->ic_htprotmode = ireq->i_val ?
3383 IEEE80211_PROT_RTSCTS : IEEE80211_PROT_NONE;
3384 /* NB: if not operating in 11n this can wait */
3385 if (isvapht(vap))
3386 error = ERESTART;
3387 break;
3388 case IEEE80211_IOC_STA_VLAN:
3389 error = ieee80211_ioctl_setstavlan(vap, ireq);
3390 break;
3391 case IEEE80211_IOC_SMPS:
3392 if ((ireq->i_val &~ IEEE80211_HTCAP_SMPS) != 0 ||
3393 ireq->i_val == 0x0008) /* value of 2 is reserved */
3394 return EINVAL;
3395 if (ireq->i_val != IEEE80211_HTCAP_SMPS_OFF &&
3396 (vap->iv_htcaps & IEEE80211_HTC_SMPS) == 0)
3397 return EOPNOTSUPP;
3398 vap->iv_htcaps = (vap->iv_htcaps &~ IEEE80211_HTCAP_SMPS) |
3399 ireq->i_val;
3400 /* NB: if not operating in 11n this can wait */
3401 if (isvapht(vap))
3402 error = ERESTART;
3403 break;
3404 case IEEE80211_IOC_RIFS:
3405 if (ireq->i_val != 0) {
3406 if ((vap->iv_htcaps & IEEE80211_HTC_RIFS) == 0)
3407 return EOPNOTSUPP;
3408 vap->iv_flags_ht |= IEEE80211_FHT_RIFS;
3409 } else
3410 vap->iv_flags_ht &= ~IEEE80211_FHT_RIFS;
3411 /* NB: if not operating in 11n this can wait */
3412 if (isvapht(vap))
3413 error = ERESTART;
3414 break;
3415 case IEEE80211_IOC_STBC:
3416 /* Check if we can do STBC TX/RX before changing the setting */
3417 if ((ireq->i_val & 1) &&
3418 ((vap->iv_htcaps & IEEE80211_HTCAP_TXSTBC) == 0))
3419 return EOPNOTSUPP;
3420 if ((ireq->i_val & 2) &&
3421 ((vap->iv_htcaps & IEEE80211_HTCAP_RXSTBC) == 0))
3422 return EOPNOTSUPP;
3423
3424 /* TX */
3425 if (ireq->i_val & 1)
3426 vap->iv_flags_ht |= IEEE80211_FHT_STBC_TX;
3427 else
3428 vap->iv_flags_ht &= ~IEEE80211_FHT_STBC_TX;
3429
3430 /* RX */
3431 if (ireq->i_val & 2)
3432 vap->iv_flags_ht |= IEEE80211_FHT_STBC_RX;
3433 else
3434 vap->iv_flags_ht &= ~IEEE80211_FHT_STBC_RX;
3435
3436 /* NB: reset only if we're operating on an 11n channel */
3437 if (isvapht(vap))
3438 error = ERESTART;
3439 break;
3440 case IEEE80211_IOC_LDPC:
3441 /* Check if we can do LDPC TX/RX before changing the setting */
3442 if ((ireq->i_val & 1) &&
3443 (vap->iv_htcaps & IEEE80211_HTC_TXLDPC) == 0)
3444 return EOPNOTSUPP;
3445 if ((ireq->i_val & 2) &&
3446 (vap->iv_htcaps & IEEE80211_HTCAP_LDPC) == 0)
3447 return EOPNOTSUPP;
3448
3449 /* TX */
3450 if (ireq->i_val & 1)
3451 vap->iv_flags_ht |= IEEE80211_FHT_LDPC_TX;
3452 else
3453 vap->iv_flags_ht &= ~IEEE80211_FHT_LDPC_TX;
3454
3455 /* RX */
3456 if (ireq->i_val & 2)
3457 vap->iv_flags_ht |= IEEE80211_FHT_LDPC_RX;
3458 else
3459 vap->iv_flags_ht &= ~IEEE80211_FHT_LDPC_RX;
3460
3461 /* NB: reset only if we're operating on an 11n channel */
3462 if (isvapht(vap))
3463 error = ERESTART;
3464 break;
3465
3466 /* VHT */
3467 case IEEE80211_IOC_VHTCONF:
3468 if (ireq->i_val & 1)
3469 ieee80211_syncflag_vht(vap, IEEE80211_FVHT_VHT);
3470 else
3471 ieee80211_syncflag_vht(vap, -IEEE80211_FVHT_VHT);
3472
3473 if (ireq->i_val & 2)
3474 ieee80211_syncflag_vht(vap, IEEE80211_FVHT_USEVHT40);
3475 else
3476 ieee80211_syncflag_vht(vap, -IEEE80211_FVHT_USEVHT40);
3477
3478 if (ireq->i_val & 4)
3479 ieee80211_syncflag_vht(vap, IEEE80211_FVHT_USEVHT80);
3480 else
3481 ieee80211_syncflag_vht(vap, -IEEE80211_FVHT_USEVHT80);
3482
3483 if (ireq->i_val & 8)
3484 ieee80211_syncflag_vht(vap, IEEE80211_FVHT_USEVHT80P80);
3485 else
3486 ieee80211_syncflag_vht(vap, -IEEE80211_FVHT_USEVHT80P80);
3487
3488 if (ireq->i_val & 16)
3489 ieee80211_syncflag_vht(vap, IEEE80211_FVHT_USEVHT160);
3490 else
3491 ieee80211_syncflag_vht(vap, -IEEE80211_FVHT_USEVHT160);
3492
3493 error = ENETRESET;
3494 break;
3495
3496 default:
3497 error = ieee80211_ioctl_setdefault(vap, ireq);
3498 break;
3499 }
3500 /*
3501 * The convention is that ENETRESET means an operation
3502 * requires a complete re-initialization of the device (e.g.
3503 * changing something that affects the association state).
3504 * ERESTART means the request may be handled with only a
3505 * reload of the hardware state. We hand ERESTART requests
3506 * to the iv_reset callback so the driver can decide. If
3507 * a device does not fillin iv_reset then it defaults to one
3508 * that returns ENETRESET. Otherwise a driver may return
3509 * ENETRESET (in which case a full reset will be done) or
3510 * 0 to mean there's no need to do anything (e.g. when the
3511 * change has no effect on the driver/device).
3512 */
3513 if (error == ERESTART)
3514 error = IFNET_IS_UP_RUNNING(vap->iv_ifp) ?
3515 vap->iv_reset(vap, ireq->i_type) : 0;
3516 if (error == ENETRESET) {
3517 /* XXX need to re-think AUTO handling */
3518 if (IS_UP_AUTO(vap))
3519 ieee80211_init(vap);
3520 error = 0;
3521 }
3522 return error;
3523 }
3524
3525 int
ieee80211_ioctl(struct ifnet * ifp,u_long cmd,caddr_t data)3526 ieee80211_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
3527 {
3528 struct ieee80211vap *vap = ifp->if_softc;
3529 struct ieee80211com *ic = vap->iv_ic;
3530 int error = 0, wait = 0, ic_used;
3531 struct ifreq *ifr;
3532 struct ifaddr *ifa; /* XXX */
3533
3534 ic_used = (cmd != SIOCSIFMTU && cmd != SIOCG80211STATS);
3535 if (ic_used && (error = ieee80211_com_vincref(vap)) != 0)
3536 return (error);
3537
3538 switch (cmd) {
3539 case SIOCSIFFLAGS:
3540 IEEE80211_LOCK(ic);
3541 if ((ifp->if_flags ^ vap->iv_ifflags) & IFF_PROMISC) {
3542 /*
3543 * Enable promiscuous mode when:
3544 * 1. Interface is not a member of bridge, or
3545 * 2. Requested by user, or
3546 * 3. In monitor (or adhoc-demo) mode.
3547 */
3548 if (ifp->if_bridge == NULL ||
3549 (ifp->if_flags & IFF_PPROMISC) != 0 ||
3550 vap->iv_opmode == IEEE80211_M_MONITOR ||
3551 (vap->iv_opmode == IEEE80211_M_AHDEMO &&
3552 (vap->iv_caps & IEEE80211_C_TDMA) == 0)) {
3553 ieee80211_promisc(vap,
3554 ifp->if_flags & IFF_PROMISC);
3555 vap->iv_ifflags ^= IFF_PROMISC;
3556 }
3557 }
3558 if ((ifp->if_flags ^ vap->iv_ifflags) & IFF_ALLMULTI) {
3559 ieee80211_allmulti(vap, ifp->if_flags & IFF_ALLMULTI);
3560 vap->iv_ifflags ^= IFF_ALLMULTI;
3561 }
3562 if (ifp->if_flags & IFF_UP) {
3563 /*
3564 * Bring ourself up unless we're already operational.
3565 * If we're the first vap and the parent is not up
3566 * then it will automatically be brought up as a
3567 * side-effect of bringing ourself up.
3568 */
3569 if (vap->iv_state == IEEE80211_S_INIT) {
3570 if (ic->ic_nrunning == 0)
3571 wait = 1;
3572 ieee80211_start_locked(vap);
3573 }
3574 } else if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
3575 /*
3576 * Stop ourself. If we are the last vap to be
3577 * marked down the parent will also be taken down.
3578 */
3579 if (ic->ic_nrunning == 1)
3580 wait = 1;
3581 ieee80211_stop_locked(vap);
3582 }
3583 IEEE80211_UNLOCK(ic);
3584 /* Wait for parent ioctl handler if it was queued */
3585 if (wait) {
3586 ieee80211_waitfor_parent(ic);
3587
3588 /*
3589 * Check if the MAC address was changed
3590 * via SIOCSIFLLADDR ioctl.
3591 *
3592 * NB: device may be detached during initialization;
3593 * use if_ioctl for existence check.
3594 */
3595 if_addr_rlock(ifp);
3596 if (ifp->if_ioctl == ieee80211_ioctl &&
3597 (ifp->if_flags & IFF_UP) == 0 &&
3598 !IEEE80211_ADDR_EQ(vap->iv_myaddr, IF_LLADDR(ifp)))
3599 IEEE80211_ADDR_COPY(vap->iv_myaddr,
3600 IF_LLADDR(ifp));
3601 if_addr_runlock(ifp);
3602 }
3603 break;
3604 case SIOCADDMULTI:
3605 case SIOCDELMULTI:
3606 ieee80211_runtask(ic, &ic->ic_mcast_task);
3607 break;
3608 case SIOCSIFMEDIA:
3609 case SIOCGIFMEDIA:
3610 ifr = (struct ifreq *)data;
3611 error = ifmedia_ioctl(ifp, ifr, &vap->iv_media, cmd);
3612 break;
3613 case SIOCG80211:
3614 error = ieee80211_ioctl_get80211(vap, cmd,
3615 (struct ieee80211req *) data);
3616 break;
3617 case SIOCS80211:
3618 error = priv_check(curthread, PRIV_NET80211_MANAGE);
3619 if (error == 0)
3620 error = ieee80211_ioctl_set80211(vap, cmd,
3621 (struct ieee80211req *) data);
3622 break;
3623 case SIOCG80211STATS:
3624 ifr = (struct ifreq *)data;
3625 copyout(&vap->iv_stats, ifr_data_get_ptr(ifr),
3626 sizeof (vap->iv_stats));
3627 break;
3628 case SIOCSIFMTU:
3629 ifr = (struct ifreq *)data;
3630 if (!(IEEE80211_MTU_MIN <= ifr->ifr_mtu &&
3631 ifr->ifr_mtu <= IEEE80211_MTU_MAX))
3632 error = EINVAL;
3633 else
3634 ifp->if_mtu = ifr->ifr_mtu;
3635 break;
3636 case SIOCSIFADDR:
3637 /*
3638 * XXX Handle this directly so we can suppress if_init calls.
3639 * XXX This should be done in ether_ioctl but for the moment
3640 * XXX there are too many other parts of the system that
3641 * XXX set IFF_UP and so suppress if_init being called when
3642 * XXX it should be.
3643 */
3644 ifa = (struct ifaddr *) data;
3645 switch (ifa->ifa_addr->sa_family) {
3646 #ifdef INET
3647 case AF_INET:
3648 if ((ifp->if_flags & IFF_UP) == 0) {
3649 ifp->if_flags |= IFF_UP;
3650 ifp->if_init(ifp->if_softc);
3651 }
3652 arp_ifinit(ifp, ifa);
3653 break;
3654 #endif
3655 default:
3656 if ((ifp->if_flags & IFF_UP) == 0) {
3657 ifp->if_flags |= IFF_UP;
3658 ifp->if_init(ifp->if_softc);
3659 }
3660 break;
3661 }
3662 break;
3663 default:
3664 /*
3665 * Pass unknown ioctls first to the driver, and if it
3666 * returns ENOTTY, then to the generic Ethernet handler.
3667 */
3668 if (ic->ic_ioctl != NULL &&
3669 (error = ic->ic_ioctl(ic, cmd, data)) != ENOTTY)
3670 break;
3671 error = ether_ioctl(ifp, cmd, data);
3672 break;
3673 }
3674
3675 if (ic_used)
3676 ieee80211_com_vdecref(vap);
3677
3678 return (error);
3679 }
3680