1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause
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 /*
31 * IEEE 802.11 ioctl support (FreeBSD-specific)
32 */
33
34 #include "opt_inet.h"
35 #include "opt_wlan.h"
36
37 #include <sys/endian.h>
38 #include <sys/param.h>
39 #include <sys/kernel.h>
40 #include <sys/malloc.h>
41 #include <sys/socket.h>
42 #include <sys/sockio.h>
43 #include <sys/systm.h>
44
45 #include <net/if.h>
46 #include <net/if_var.h>
47 #include <net/if_dl.h>
48 #include <net/if_media.h>
49 #include <net/ethernet.h>
50
51 #ifdef INET
52 #include <netinet/in.h>
53 #include <netinet/if_ether.h>
54 #endif
55
56 #include <net80211/ieee80211_var.h>
57 #include <net80211/ieee80211_ioctl.h>
58 #include <net80211/ieee80211_regdomain.h>
59 #include <net80211/ieee80211_input.h>
60
61 #define IS_UP_AUTO(_vap) \
62 (IFNET_IS_UP_RUNNING((_vap)->iv_ifp) && \
63 (_vap)->iv_roaming == IEEE80211_ROAMING_AUTO)
64
65 static const uint8_t zerobssid[IEEE80211_ADDR_LEN];
66 static struct ieee80211_channel *findchannel(struct ieee80211com *,
67 int ieee, int mode);
68 static int ieee80211_scanreq(struct ieee80211vap *,
69 struct ieee80211_scan_req *);
70
71 static int
ieee80211_ioctl_getkey(u_long cmd,struct ieee80211vap * vap,struct ieee80211req * ireq)72 ieee80211_ioctl_getkey(u_long cmd, struct ieee80211vap *vap,
73 struct ieee80211req *ireq)
74 {
75 struct ieee80211com *ic = vap->iv_ic;
76 struct ieee80211_node *ni;
77 struct ieee80211req_key ik;
78 struct ieee80211_key *wk;
79 const struct ieee80211_cipher *cip;
80 u_int kid;
81 int error;
82
83 if (ireq->i_len != sizeof(ik))
84 return EINVAL;
85 error = copyin(ireq->i_data, &ik, sizeof(ik));
86 if (error)
87 return error;
88 kid = ik.ik_keyix;
89 if (kid == IEEE80211_KEYIX_NONE) {
90 ni = ieee80211_find_vap_node(&ic->ic_sta, vap, ik.ik_macaddr);
91 if (ni == NULL)
92 return ENOENT;
93 wk = &ni->ni_ucastkey;
94 } else {
95 if (kid >= IEEE80211_WEP_NKID)
96 return EINVAL;
97 wk = &vap->iv_nw_keys[kid];
98 IEEE80211_ADDR_COPY(&ik.ik_macaddr, vap->iv_bss->ni_macaddr);
99 ni = NULL;
100 }
101 cip = wk->wk_cipher;
102 ik.ik_type = cip->ic_cipher;
103 ik.ik_keylen = wk->wk_keylen;
104 ik.ik_flags = wk->wk_flags & (IEEE80211_KEY_XMIT | IEEE80211_KEY_RECV);
105 if (wk->wk_keyix == vap->iv_def_txkey)
106 ik.ik_flags |= IEEE80211_KEY_DEFAULT;
107 if (ieee80211_priv_check_vap_getkey(cmd, vap, NULL) == 0) {
108 /* NB: only root can read key data */
109 ik.ik_keyrsc = wk->wk_keyrsc[IEEE80211_NONQOS_TID];
110 ik.ik_keytsc = wk->wk_keytsc;
111 memcpy(ik.ik_keydata, wk->wk_key, wk->wk_keylen);
112 if (cip->ic_cipher == IEEE80211_CIPHER_TKIP) {
113 memcpy(ik.ik_keydata+wk->wk_keylen,
114 wk->wk_key + IEEE80211_KEYBUF_SIZE,
115 IEEE80211_MICBUF_SIZE);
116 ik.ik_keylen += IEEE80211_MICBUF_SIZE;
117 }
118 } else {
119 ik.ik_keyrsc = 0;
120 ik.ik_keytsc = 0;
121 memset(ik.ik_keydata, 0, sizeof(ik.ik_keydata));
122 }
123 if (ni != NULL)
124 ieee80211_free_node(ni);
125 return copyout(&ik, ireq->i_data, sizeof(ik));
126 }
127
128 static int
ieee80211_ioctl_getchanlist(struct ieee80211vap * vap,struct ieee80211req * ireq)129 ieee80211_ioctl_getchanlist(struct ieee80211vap *vap, struct ieee80211req *ireq)
130 {
131 struct ieee80211com *ic = vap->iv_ic;
132
133 if (sizeof(ic->ic_chan_active) < ireq->i_len)
134 ireq->i_len = sizeof(ic->ic_chan_active);
135 return copyout(&ic->ic_chan_active, ireq->i_data, ireq->i_len);
136 }
137
138 static int
ieee80211_ioctl_getchaninfo(struct ieee80211vap * vap,struct ieee80211req * ireq)139 ieee80211_ioctl_getchaninfo(struct ieee80211vap *vap, struct ieee80211req *ireq)
140 {
141 struct ieee80211com *ic = vap->iv_ic;
142 uint32_t space;
143
144 space = __offsetof(struct ieee80211req_chaninfo,
145 ic_chans[ic->ic_nchans]);
146 if (space > ireq->i_len)
147 space = ireq->i_len;
148 /* XXX assumes compatible layout */
149 return copyout(&ic->ic_nchans, ireq->i_data, space);
150 }
151
152 static int
ieee80211_ioctl_getwpaie(struct ieee80211vap * vap,struct ieee80211req * ireq,int req)153 ieee80211_ioctl_getwpaie(struct ieee80211vap *vap,
154 struct ieee80211req *ireq, int req)
155 {
156 struct ieee80211_node *ni;
157 struct ieee80211req_wpaie2 *wpaie;
158 int error;
159
160 if (ireq->i_len < IEEE80211_ADDR_LEN)
161 return EINVAL;
162 wpaie = IEEE80211_MALLOC(sizeof(*wpaie), M_TEMP,
163 IEEE80211_M_NOWAIT | IEEE80211_M_ZERO);
164 if (wpaie == NULL)
165 return ENOMEM;
166 error = copyin(ireq->i_data, wpaie->wpa_macaddr, IEEE80211_ADDR_LEN);
167 if (error != 0)
168 goto bad;
169 ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap, wpaie->wpa_macaddr);
170 if (ni == NULL) {
171 error = ENOENT;
172 goto bad;
173 }
174 if (ni->ni_ies.wpa_ie != NULL) {
175 int ielen = ni->ni_ies.wpa_ie[1] + 2;
176 if (ielen > sizeof(wpaie->wpa_ie))
177 ielen = sizeof(wpaie->wpa_ie);
178 memcpy(wpaie->wpa_ie, ni->ni_ies.wpa_ie, ielen);
179 }
180 if (req == IEEE80211_IOC_WPAIE2) {
181 if (ni->ni_ies.rsn_ie != NULL) {
182 int ielen = ni->ni_ies.rsn_ie[1] + 2;
183 if (ielen > sizeof(wpaie->rsn_ie))
184 ielen = sizeof(wpaie->rsn_ie);
185 memcpy(wpaie->rsn_ie, ni->ni_ies.rsn_ie, ielen);
186 }
187 if (ireq->i_len > sizeof(struct ieee80211req_wpaie2))
188 ireq->i_len = sizeof(struct ieee80211req_wpaie2);
189 } else {
190 /* compatibility op, may overwrite wpa ie */
191 /* XXX check ic_flags? */
192 if (ni->ni_ies.rsn_ie != NULL) {
193 int ielen = ni->ni_ies.rsn_ie[1] + 2;
194 if (ielen > sizeof(wpaie->wpa_ie))
195 ielen = sizeof(wpaie->wpa_ie);
196 memcpy(wpaie->wpa_ie, ni->ni_ies.rsn_ie, ielen);
197 }
198 if (ireq->i_len > sizeof(struct ieee80211req_wpaie))
199 ireq->i_len = sizeof(struct ieee80211req_wpaie);
200 }
201 ieee80211_free_node(ni);
202 error = copyout(wpaie, ireq->i_data, ireq->i_len);
203 bad:
204 IEEE80211_FREE(wpaie, M_TEMP);
205 return error;
206 }
207
208 static int
ieee80211_ioctl_getstastats(struct ieee80211vap * vap,struct ieee80211req * ireq)209 ieee80211_ioctl_getstastats(struct ieee80211vap *vap, struct ieee80211req *ireq)
210 {
211 struct ieee80211_node *ni;
212 uint8_t macaddr[IEEE80211_ADDR_LEN];
213 const size_t off = __offsetof(struct ieee80211req_sta_stats, is_stats);
214 int error;
215
216 if (ireq->i_len < off)
217 return EINVAL;
218 error = copyin(ireq->i_data, macaddr, IEEE80211_ADDR_LEN);
219 if (error != 0)
220 return error;
221 ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap, macaddr);
222 if (ni == NULL)
223 return ENOENT;
224 if (ireq->i_len > sizeof(struct ieee80211req_sta_stats))
225 ireq->i_len = sizeof(struct ieee80211req_sta_stats);
226 /* NB: copy out only the statistics */
227 error = copyout(&ni->ni_stats, (uint8_t *) ireq->i_data + off,
228 ireq->i_len - off);
229 ieee80211_free_node(ni);
230 return error;
231 }
232
233 struct scanreq {
234 struct ieee80211req_scan_result *sr;
235 size_t space;
236 };
237
238 static size_t
scan_space(const struct ieee80211_scan_entry * se,int * ielen)239 scan_space(const struct ieee80211_scan_entry *se, int *ielen)
240 {
241 size_t len;
242
243 *ielen = se->se_ies.len;
244 /*
245 * NB: ie's can be no more than 255 bytes and the max 802.11
246 * packet is <3Kbytes so we are sure this doesn't overflow
247 * 16-bits; if this is a concern we can drop the ie's.
248 */
249 len = sizeof(struct ieee80211req_scan_result) + se->se_ssid[1] +
250 se->se_meshid[1] + *ielen;
251 return roundup(len, sizeof(uint32_t));
252 }
253
254 static void
get_scan_space(void * arg,const struct ieee80211_scan_entry * se)255 get_scan_space(void *arg, const struct ieee80211_scan_entry *se)
256 {
257 struct scanreq *req = arg;
258 int ielen;
259
260 req->space += scan_space(se, &ielen);
261 }
262
263 static void
get_scan_result(void * arg,const struct ieee80211_scan_entry * se)264 get_scan_result(void *arg, const struct ieee80211_scan_entry *se)
265 {
266 struct scanreq *req = arg;
267 struct ieee80211req_scan_result *sr;
268 int ielen, len, nr, nxr;
269 uint8_t *cp;
270
271 len = scan_space(se, &ielen);
272 if (len > req->space)
273 return;
274
275 sr = req->sr;
276 KASSERT(len <= 65535 && ielen <= 65535,
277 ("len %u ssid %u ie %u", len, se->se_ssid[1], ielen));
278 sr->isr_len = len;
279 sr->isr_ie_off = sizeof(struct ieee80211req_scan_result);
280 sr->isr_ie_len = ielen;
281 sr->isr_freq = se->se_chan->ic_freq;
282 sr->isr_flags = se->se_chan->ic_flags;
283 sr->isr_rssi = se->se_rssi;
284 sr->isr_noise = se->se_noise;
285 sr->isr_intval = se->se_intval;
286 sr->isr_capinfo = se->se_capinfo;
287 sr->isr_erp = se->se_erp;
288 IEEE80211_ADDR_COPY(sr->isr_bssid, se->se_bssid);
289 nr = min(se->se_rates[1], IEEE80211_RATE_MAXSIZE);
290 memcpy(sr->isr_rates, se->se_rates+2, nr);
291 nxr = min(se->se_xrates[1], IEEE80211_RATE_MAXSIZE - nr);
292 memcpy(sr->isr_rates+nr, se->se_xrates+2, nxr);
293 sr->isr_nrates = nr + nxr;
294
295 /* copy SSID */
296 sr->isr_ssid_len = se->se_ssid[1];
297 cp = ((uint8_t *)sr) + sr->isr_ie_off;
298 memcpy(cp, se->se_ssid+2, sr->isr_ssid_len);
299
300 /* copy mesh id */
301 cp += sr->isr_ssid_len;
302 sr->isr_meshid_len = se->se_meshid[1];
303 memcpy(cp, se->se_meshid+2, sr->isr_meshid_len);
304 cp += sr->isr_meshid_len;
305
306 if (ielen)
307 memcpy(cp, se->se_ies.data, ielen);
308
309 req->space -= len;
310 req->sr = (struct ieee80211req_scan_result *)(((uint8_t *)sr) + len);
311 }
312
313 static int
ieee80211_ioctl_getscanresults(struct ieee80211vap * vap,struct ieee80211req * ireq)314 ieee80211_ioctl_getscanresults(struct ieee80211vap *vap,
315 struct ieee80211req *ireq)
316 {
317 struct scanreq req;
318 int error;
319
320 if (ireq->i_len < sizeof(struct scanreq))
321 return EFAULT;
322
323 error = 0;
324 req.space = 0;
325 ieee80211_scan_iterate(vap, get_scan_space, &req);
326 if (req.space > ireq->i_len)
327 req.space = ireq->i_len;
328 if (req.space > 0) {
329 uint32_t space;
330 void *p;
331
332 space = req.space;
333 /* XXX IEEE80211_M_WAITOK after driver lock released */
334 p = IEEE80211_MALLOC(space, M_TEMP,
335 IEEE80211_M_NOWAIT | IEEE80211_M_ZERO);
336 if (p == NULL)
337 return ENOMEM;
338 req.sr = p;
339 ieee80211_scan_iterate(vap, get_scan_result, &req);
340 ireq->i_len = space - req.space;
341 error = copyout(p, ireq->i_data, ireq->i_len);
342 IEEE80211_FREE(p, M_TEMP);
343 } else
344 ireq->i_len = 0;
345
346 return error;
347 }
348
349 struct stainforeq {
350 struct ieee80211req_sta_info *si;
351 size_t space;
352 };
353
354 static size_t
sta_space(const struct ieee80211_node * ni,size_t * ielen)355 sta_space(const struct ieee80211_node *ni, size_t *ielen)
356 {
357 *ielen = ni->ni_ies.len;
358 return roundup(sizeof(struct ieee80211req_sta_info) + *ielen,
359 sizeof(uint32_t));
360 }
361
362 static void
get_sta_space(void * arg,struct ieee80211_node * ni)363 get_sta_space(void *arg, struct ieee80211_node *ni)
364 {
365 struct stainforeq *req = arg;
366 size_t ielen;
367
368 if (ni->ni_vap->iv_opmode == IEEE80211_M_HOSTAP &&
369 ni->ni_associd == 0) /* only associated stations */
370 return;
371 req->space += sta_space(ni, &ielen);
372 }
373
374 static void
get_sta_info(void * arg,struct ieee80211_node * ni)375 get_sta_info(void *arg, struct ieee80211_node *ni)
376 {
377 struct stainforeq *req = arg;
378 struct ieee80211vap *vap = ni->ni_vap;
379 struct ieee80211req_sta_info *si;
380 size_t ielen, len;
381 uint8_t *cp;
382
383 if (vap->iv_opmode == IEEE80211_M_HOSTAP &&
384 ni->ni_associd == 0) /* only associated stations */
385 return;
386 if (ni->ni_chan == IEEE80211_CHAN_ANYC) /* XXX bogus entry */
387 return;
388 len = sta_space(ni, &ielen);
389 if (len > req->space)
390 return;
391 si = req->si;
392 si->isi_len = len;
393 si->isi_ie_off = sizeof(struct ieee80211req_sta_info);
394 si->isi_ie_len = ielen;
395 si->isi_freq = ni->ni_chan->ic_freq;
396 si->isi_flags = ni->ni_chan->ic_flags;
397 si->isi_state = ni->ni_flags;
398 si->isi_authmode = ni->ni_authmode;
399 vap->iv_ic->ic_node_getsignal(ni, &si->isi_rssi, &si->isi_noise);
400 vap->iv_ic->ic_node_getmimoinfo(ni, &si->isi_mimo);
401 si->isi_capinfo = ni->ni_capinfo;
402 si->isi_erp = ni->ni_erp;
403 IEEE80211_ADDR_COPY(si->isi_macaddr, ni->ni_macaddr);
404 si->isi_nrates = ni->ni_rates.rs_nrates;
405 if (si->isi_nrates > 15)
406 si->isi_nrates = 15;
407 memcpy(si->isi_rates, ni->ni_rates.rs_rates, si->isi_nrates);
408 si->isi_txrate = ni->ni_txrate;
409 if (si->isi_txrate & IEEE80211_RATE_MCS) {
410 const struct ieee80211_mcs_rates *mcs =
411 &ieee80211_htrates[ni->ni_txrate &~ IEEE80211_RATE_MCS];
412 if (IEEE80211_IS_CHAN_HT40(ni->ni_chan)) {
413 if (ni->ni_flags & IEEE80211_NODE_SGI40)
414 si->isi_txmbps = mcs->ht40_rate_800ns;
415 else
416 si->isi_txmbps = mcs->ht40_rate_400ns;
417 } else {
418 if (ni->ni_flags & IEEE80211_NODE_SGI20)
419 si->isi_txmbps = mcs->ht20_rate_800ns;
420 else
421 si->isi_txmbps = mcs->ht20_rate_400ns;
422 }
423 } else
424 si->isi_txmbps = si->isi_txrate;
425 si->isi_associd = ni->ni_associd;
426 si->isi_txpower = ni->ni_txpower;
427 si->isi_vlan = ni->ni_vlan;
428 if (ni->ni_flags & IEEE80211_NODE_QOS) {
429 memcpy(si->isi_txseqs, ni->ni_txseqs, sizeof(ni->ni_txseqs));
430 memcpy(si->isi_rxseqs, ni->ni_rxseqs, sizeof(ni->ni_rxseqs));
431 } else {
432 si->isi_txseqs[0] = ni->ni_txseqs[IEEE80211_NONQOS_TID];
433 si->isi_rxseqs[0] = ni->ni_rxseqs[IEEE80211_NONQOS_TID];
434 }
435 /* NB: leave all cases in case we relax ni_associd == 0 check */
436 if (ieee80211_node_is_authorized(ni))
437 si->isi_inact = vap->iv_inact_run;
438 else if (ni->ni_associd != 0 ||
439 (vap->iv_opmode == IEEE80211_M_WDS &&
440 (vap->iv_flags_ext & IEEE80211_FEXT_WDSLEGACY)))
441 si->isi_inact = vap->iv_inact_auth;
442 else
443 si->isi_inact = vap->iv_inact_init;
444 si->isi_inact = (si->isi_inact - ni->ni_inact) * IEEE80211_INACT_WAIT;
445 si->isi_localid = ni->ni_mllid;
446 si->isi_peerid = ni->ni_mlpid;
447 si->isi_peerstate = ni->ni_mlstate;
448
449 if (ielen) {
450 cp = ((uint8_t *)si) + si->isi_ie_off;
451 memcpy(cp, ni->ni_ies.data, ielen);
452 }
453
454 req->si = (struct ieee80211req_sta_info *)(((uint8_t *)si) + len);
455 req->space -= len;
456 }
457
458 static int
getstainfo_common(struct ieee80211vap * vap,struct ieee80211req * ireq,struct ieee80211_node * ni,size_t off)459 getstainfo_common(struct ieee80211vap *vap, struct ieee80211req *ireq,
460 struct ieee80211_node *ni, size_t off)
461 {
462 struct ieee80211com *ic = vap->iv_ic;
463 struct stainforeq req;
464 size_t space;
465 void *p;
466 int error;
467
468 error = 0;
469 req.space = 0;
470 if (ni == NULL) {
471 ieee80211_iterate_nodes_vap(&ic->ic_sta, vap, get_sta_space,
472 &req);
473 } else
474 get_sta_space(&req, ni);
475 if (req.space > ireq->i_len)
476 req.space = ireq->i_len;
477 if (req.space > 0) {
478 space = req.space;
479 /* XXX IEEE80211_M_WAITOK after driver lock released */
480 p = IEEE80211_MALLOC(space, M_TEMP,
481 IEEE80211_M_NOWAIT | IEEE80211_M_ZERO);
482 if (p == NULL) {
483 error = ENOMEM;
484 goto bad;
485 }
486 req.si = p;
487 if (ni == NULL) {
488 ieee80211_iterate_nodes_vap(&ic->ic_sta, vap,
489 get_sta_info, &req);
490 } else
491 get_sta_info(&req, ni);
492 ireq->i_len = space - req.space;
493 error = copyout(p, (uint8_t *) ireq->i_data+off, ireq->i_len);
494 IEEE80211_FREE(p, M_TEMP);
495 } else
496 ireq->i_len = 0;
497 bad:
498 if (ni != NULL)
499 ieee80211_free_node(ni);
500 return error;
501 }
502
503 static int
ieee80211_ioctl_getstainfo(struct ieee80211vap * vap,struct ieee80211req * ireq)504 ieee80211_ioctl_getstainfo(struct ieee80211vap *vap, struct ieee80211req *ireq)
505 {
506 uint8_t macaddr[IEEE80211_ADDR_LEN];
507 const size_t off = __offsetof(struct ieee80211req_sta_req, info);
508 struct ieee80211_node *ni;
509 int error;
510
511 if (ireq->i_len < sizeof(struct ieee80211req_sta_req))
512 return EFAULT;
513 error = copyin(ireq->i_data, macaddr, IEEE80211_ADDR_LEN);
514 if (error != 0)
515 return error;
516 if (IEEE80211_ADDR_EQ(macaddr, vap->iv_ifp->if_broadcastaddr)) {
517 ni = NULL;
518 } else {
519 ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap, macaddr);
520 if (ni == NULL)
521 return ENOENT;
522 }
523 return getstainfo_common(vap, ireq, ni, off);
524 }
525
526 static int
ieee80211_ioctl_getstatxpow(struct ieee80211vap * vap,struct ieee80211req * ireq)527 ieee80211_ioctl_getstatxpow(struct ieee80211vap *vap, struct ieee80211req *ireq)
528 {
529 struct ieee80211_node *ni;
530 struct ieee80211req_sta_txpow txpow;
531 int error;
532
533 if (ireq->i_len != sizeof(txpow))
534 return EINVAL;
535 error = copyin(ireq->i_data, &txpow, sizeof(txpow));
536 if (error != 0)
537 return error;
538 ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap, txpow.it_macaddr);
539 if (ni == NULL)
540 return ENOENT;
541 txpow.it_txpow = ni->ni_txpower;
542 error = copyout(&txpow, ireq->i_data, sizeof(txpow));
543 ieee80211_free_node(ni);
544 return error;
545 }
546
547 static int
ieee80211_ioctl_getwmeparam(struct ieee80211vap * vap,struct ieee80211req * ireq)548 ieee80211_ioctl_getwmeparam(struct ieee80211vap *vap, struct ieee80211req *ireq)
549 {
550 struct ieee80211com *ic = vap->iv_ic;
551 struct ieee80211_wme_state *wme = &ic->ic_wme;
552 struct wmeParams *wmep;
553 int ac;
554
555 if ((ic->ic_caps & IEEE80211_C_WME) == 0)
556 return EINVAL;
557
558 ac = (ireq->i_len & IEEE80211_WMEPARAM_VAL);
559 if (ac >= WME_NUM_AC)
560 ac = WME_AC_BE;
561 if (ireq->i_len & IEEE80211_WMEPARAM_BSS)
562 wmep = &wme->wme_wmeBssChanParams.cap_wmeParams[ac];
563 else
564 wmep = &wme->wme_wmeChanParams.cap_wmeParams[ac];
565 switch (ireq->i_type) {
566 case IEEE80211_IOC_WME_CWMIN: /* WME: CWmin */
567 ireq->i_val = wmep->wmep_logcwmin;
568 break;
569 case IEEE80211_IOC_WME_CWMAX: /* WME: CWmax */
570 ireq->i_val = wmep->wmep_logcwmax;
571 break;
572 case IEEE80211_IOC_WME_AIFS: /* WME: AIFS */
573 ireq->i_val = wmep->wmep_aifsn;
574 break;
575 case IEEE80211_IOC_WME_TXOPLIMIT: /* WME: txops limit */
576 ireq->i_val = wmep->wmep_txopLimit;
577 break;
578 case IEEE80211_IOC_WME_ACM: /* WME: ACM (bss only) */
579 wmep = &wme->wme_wmeBssChanParams.cap_wmeParams[ac];
580 ireq->i_val = wmep->wmep_acm;
581 break;
582 case IEEE80211_IOC_WME_ACKPOLICY: /* WME: ACK policy (!bss only)*/
583 wmep = &wme->wme_wmeChanParams.cap_wmeParams[ac];
584 ireq->i_val = !wmep->wmep_noackPolicy;
585 break;
586 }
587 return 0;
588 }
589
590 static int
ieee80211_ioctl_getmaccmd(struct ieee80211vap * vap,struct ieee80211req * ireq)591 ieee80211_ioctl_getmaccmd(struct ieee80211vap *vap, struct ieee80211req *ireq)
592 {
593 const struct ieee80211_aclator *acl = vap->iv_acl;
594
595 return (acl == NULL ? EINVAL : acl->iac_getioctl(vap, ireq));
596 }
597
598 static int
ieee80211_ioctl_getcurchan(struct ieee80211vap * vap,struct ieee80211req * ireq)599 ieee80211_ioctl_getcurchan(struct ieee80211vap *vap, struct ieee80211req *ireq)
600 {
601 struct ieee80211com *ic = vap->iv_ic;
602 struct ieee80211_channel *c;
603
604 if (ireq->i_len != sizeof(struct ieee80211_channel))
605 return EINVAL;
606 /*
607 * vap's may have different operating channels when HT is
608 * in use. When in RUN state report the vap-specific channel.
609 * Otherwise return curchan.
610 */
611 if (vap->iv_state == IEEE80211_S_RUN || vap->iv_state == IEEE80211_S_SLEEP)
612 c = vap->iv_bss->ni_chan;
613 else
614 c = ic->ic_curchan;
615 return copyout(c, ireq->i_data, sizeof(*c));
616 }
617
618 static int
getappie(const struct ieee80211_appie * aie,struct ieee80211req * ireq)619 getappie(const struct ieee80211_appie *aie, struct ieee80211req *ireq)
620 {
621 if (aie == NULL)
622 return EINVAL;
623 /* NB: truncate, caller can check length */
624 if (ireq->i_len > aie->ie_len)
625 ireq->i_len = aie->ie_len;
626 return copyout(aie->ie_data, ireq->i_data, ireq->i_len);
627 }
628
629 static int
ieee80211_ioctl_getappie(struct ieee80211vap * vap,struct ieee80211req * ireq)630 ieee80211_ioctl_getappie(struct ieee80211vap *vap, struct ieee80211req *ireq)
631 {
632 uint8_t fc0;
633
634 fc0 = ireq->i_val & 0xff;
635 if ((fc0 & IEEE80211_FC0_TYPE_MASK) != IEEE80211_FC0_TYPE_MGT)
636 return EINVAL;
637 /* NB: could check iv_opmode and reject but hardly worth the effort */
638 switch (fc0 & IEEE80211_FC0_SUBTYPE_MASK) {
639 case IEEE80211_FC0_SUBTYPE_BEACON:
640 return getappie(vap->iv_appie_beacon, ireq);
641 case IEEE80211_FC0_SUBTYPE_PROBE_RESP:
642 return getappie(vap->iv_appie_proberesp, ireq);
643 case IEEE80211_FC0_SUBTYPE_ASSOC_RESP:
644 return getappie(vap->iv_appie_assocresp, ireq);
645 case IEEE80211_FC0_SUBTYPE_PROBE_REQ:
646 return getappie(vap->iv_appie_probereq, ireq);
647 case IEEE80211_FC0_SUBTYPE_ASSOC_REQ:
648 return getappie(vap->iv_appie_assocreq, ireq);
649 case IEEE80211_FC0_SUBTYPE_BEACON|IEEE80211_FC0_SUBTYPE_PROBE_RESP:
650 return getappie(vap->iv_appie_wpa, ireq);
651 }
652 return EINVAL;
653 }
654
655 static int
ieee80211_ioctl_getregdomain(struct ieee80211vap * vap,const struct ieee80211req * ireq)656 ieee80211_ioctl_getregdomain(struct ieee80211vap *vap,
657 const struct ieee80211req *ireq)
658 {
659 struct ieee80211com *ic = vap->iv_ic;
660
661 if (ireq->i_len != sizeof(ic->ic_regdomain))
662 return EINVAL;
663 return copyout(&ic->ic_regdomain, ireq->i_data,
664 sizeof(ic->ic_regdomain));
665 }
666
667 static int
ieee80211_ioctl_getroam(struct ieee80211vap * vap,const struct ieee80211req * ireq)668 ieee80211_ioctl_getroam(struct ieee80211vap *vap,
669 const struct ieee80211req *ireq)
670 {
671 size_t len = ireq->i_len;
672 /* NB: accept short requests for backwards compat */
673 if (len > sizeof(vap->iv_roamparms))
674 len = sizeof(vap->iv_roamparms);
675 return copyout(vap->iv_roamparms, ireq->i_data, len);
676 }
677
678 static int
ieee80211_ioctl_gettxparams(struct ieee80211vap * vap,const struct ieee80211req * ireq)679 ieee80211_ioctl_gettxparams(struct ieee80211vap *vap,
680 const struct ieee80211req *ireq)
681 {
682 size_t len = ireq->i_len;
683 /* NB: accept short requests for backwards compat */
684 if (len > sizeof(vap->iv_txparms))
685 len = sizeof(vap->iv_txparms);
686 return copyout(vap->iv_txparms, ireq->i_data, len);
687 }
688
689 static int
ieee80211_ioctl_getdevcaps(struct ieee80211com * ic,const struct ieee80211req * ireq)690 ieee80211_ioctl_getdevcaps(struct ieee80211com *ic,
691 const struct ieee80211req *ireq)
692 {
693 struct ieee80211_devcaps_req *dc;
694 struct ieee80211req_chaninfo *ci;
695 int maxchans, error;
696
697 maxchans = 1 + ((ireq->i_len - sizeof(struct ieee80211_devcaps_req)) /
698 sizeof(struct ieee80211_channel));
699 /* NB: require 1 so we know ic_nchans is accessible */
700 if (maxchans < 1)
701 return EINVAL;
702 /* constrain max request size, 2K channels is ~24Kbytes */
703 if (maxchans > 2048)
704 maxchans = 2048;
705 dc = (struct ieee80211_devcaps_req *)
706 IEEE80211_MALLOC(IEEE80211_DEVCAPS_SIZE(maxchans), M_TEMP,
707 IEEE80211_M_NOWAIT | IEEE80211_M_ZERO);
708 if (dc == NULL)
709 return ENOMEM;
710 dc->dc_drivercaps = ic->ic_caps;
711 dc->dc_cryptocaps = ic->ic_cryptocaps;
712 dc->dc_htcaps = ic->ic_htcaps;
713 dc->dc_vhtcaps = ic->ic_vht_cap.vht_cap_info;
714 ci = &dc->dc_chaninfo;
715 ic->ic_getradiocaps(ic, maxchans, &ci->ic_nchans, ci->ic_chans);
716 KASSERT(ci->ic_nchans <= maxchans,
717 ("nchans %d maxchans %d", ci->ic_nchans, maxchans));
718 ieee80211_sort_channels(ci->ic_chans, ci->ic_nchans);
719 error = copyout(dc, ireq->i_data, IEEE80211_DEVCAPS_SPACE(dc));
720 IEEE80211_FREE(dc, M_TEMP);
721 return error;
722 }
723
724 static int
ieee80211_ioctl_getstavlan(struct ieee80211vap * vap,struct ieee80211req * ireq)725 ieee80211_ioctl_getstavlan(struct ieee80211vap *vap, struct ieee80211req *ireq)
726 {
727 struct ieee80211_node *ni;
728 struct ieee80211req_sta_vlan vlan;
729 int error;
730
731 if (ireq->i_len != sizeof(vlan))
732 return EINVAL;
733 error = copyin(ireq->i_data, &vlan, sizeof(vlan));
734 if (error != 0)
735 return error;
736 if (!IEEE80211_ADDR_EQ(vlan.sv_macaddr, zerobssid)) {
737 ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap,
738 vlan.sv_macaddr);
739 if (ni == NULL)
740 return ENOENT;
741 } else
742 ni = ieee80211_ref_node(vap->iv_bss);
743 vlan.sv_vlan = ni->ni_vlan;
744 error = copyout(&vlan, ireq->i_data, sizeof(vlan));
745 ieee80211_free_node(ni);
746 return error;
747 }
748
749 /*
750 * Dummy ioctl get handler so the linker set is defined.
751 */
752 static int
dummy_ioctl_get(struct ieee80211vap * vap,struct ieee80211req * ireq)753 dummy_ioctl_get(struct ieee80211vap *vap, struct ieee80211req *ireq)
754 {
755 return ENOSYS;
756 }
757 IEEE80211_IOCTL_GET(dummy, dummy_ioctl_get);
758
759 static int
ieee80211_ioctl_getdefault(struct ieee80211vap * vap,struct ieee80211req * ireq)760 ieee80211_ioctl_getdefault(struct ieee80211vap *vap, struct ieee80211req *ireq)
761 {
762 ieee80211_ioctl_getfunc * const *get;
763 int error;
764
765 SET_FOREACH(get, ieee80211_ioctl_getset) {
766 error = (*get)(vap, ireq);
767 if (error != ENOSYS)
768 return error;
769 }
770 return EINVAL;
771 }
772
773 static int
ieee80211_ioctl_get80211(struct ieee80211vap * vap,u_long cmd,struct ieee80211req * ireq)774 ieee80211_ioctl_get80211(struct ieee80211vap *vap, u_long cmd,
775 struct ieee80211req *ireq)
776 {
777 struct ieee80211com *ic = vap->iv_ic;
778 u_int kid, len;
779 uint8_t tmpkey[IEEE80211_KEYBUF_SIZE];
780 char tmpssid[IEEE80211_NWID_LEN];
781 int error = 0;
782
783 switch (ireq->i_type) {
784 case IEEE80211_IOC_IC_NAME:
785 len = strlen(ic->ic_name) + 1;
786 if (len > ireq->i_len)
787 return (EINVAL);
788 ireq->i_len = len;
789 error = copyout(ic->ic_name, ireq->i_data, ireq->i_len);
790 break;
791 case IEEE80211_IOC_SSID:
792 switch (vap->iv_state) {
793 case IEEE80211_S_INIT:
794 case IEEE80211_S_SCAN:
795 ireq->i_len = vap->iv_des_ssid[0].len;
796 memcpy(tmpssid, vap->iv_des_ssid[0].ssid, ireq->i_len);
797 break;
798 default:
799 ireq->i_len = vap->iv_bss->ni_esslen;
800 memcpy(tmpssid, vap->iv_bss->ni_essid, ireq->i_len);
801 break;
802 }
803 error = copyout(tmpssid, ireq->i_data, ireq->i_len);
804 break;
805 case IEEE80211_IOC_NUMSSIDS:
806 ireq->i_val = 1;
807 break;
808 case IEEE80211_IOC_WEP:
809 if ((vap->iv_flags & IEEE80211_F_PRIVACY) == 0)
810 ireq->i_val = IEEE80211_WEP_OFF;
811 else if (vap->iv_flags & IEEE80211_F_DROPUNENC)
812 ireq->i_val = IEEE80211_WEP_ON;
813 else
814 ireq->i_val = IEEE80211_WEP_MIXED;
815 break;
816 case IEEE80211_IOC_WEPKEY:
817 kid = (u_int) ireq->i_val;
818 if (kid >= IEEE80211_WEP_NKID)
819 return EINVAL;
820 len = (u_int) vap->iv_nw_keys[kid].wk_keylen;
821 /* NB: only root can read WEP keys */
822 if (ieee80211_priv_check_vap_getkey(cmd, vap, NULL) == 0) {
823 bcopy(vap->iv_nw_keys[kid].wk_key, tmpkey, len);
824 } else {
825 bzero(tmpkey, len);
826 }
827 ireq->i_len = len;
828 error = copyout(tmpkey, ireq->i_data, len);
829 break;
830 case IEEE80211_IOC_NUMWEPKEYS:
831 ireq->i_val = IEEE80211_WEP_NKID;
832 break;
833 case IEEE80211_IOC_WEPTXKEY:
834 ireq->i_val = vap->iv_def_txkey;
835 break;
836 case IEEE80211_IOC_AUTHMODE:
837 if (vap->iv_flags & IEEE80211_F_WPA)
838 ireq->i_val = IEEE80211_AUTH_WPA;
839 else
840 ireq->i_val = vap->iv_bss->ni_authmode;
841 break;
842 case IEEE80211_IOC_CHANNEL:
843 ireq->i_val = ieee80211_chan2ieee(ic, ic->ic_curchan);
844 break;
845 case IEEE80211_IOC_POWERSAVE:
846 if (vap->iv_flags & IEEE80211_F_PMGTON)
847 ireq->i_val = IEEE80211_POWERSAVE_ON;
848 else
849 ireq->i_val = IEEE80211_POWERSAVE_OFF;
850 break;
851 case IEEE80211_IOC_POWERSAVESLEEP:
852 ireq->i_val = ic->ic_lintval;
853 break;
854 case IEEE80211_IOC_RTSTHRESHOLD:
855 ireq->i_val = vap->iv_rtsthreshold;
856 break;
857 case IEEE80211_IOC_PROTMODE:
858 ireq->i_val = vap->iv_protmode;
859 break;
860 case IEEE80211_IOC_TXPOWER:
861 /*
862 * Tx power limit is the min of max regulatory
863 * power, any user-set limit, and the max the
864 * radio can do.
865 *
866 * TODO: methodize this
867 */
868 ireq->i_val = 2*ic->ic_curchan->ic_maxregpower;
869 if (ireq->i_val > ic->ic_txpowlimit)
870 ireq->i_val = ic->ic_txpowlimit;
871 if (ireq->i_val > ic->ic_curchan->ic_maxpower)
872 ireq->i_val = ic->ic_curchan->ic_maxpower;
873 break;
874 case IEEE80211_IOC_WPA:
875 switch (vap->iv_flags & IEEE80211_F_WPA) {
876 case IEEE80211_F_WPA1:
877 ireq->i_val = 1;
878 break;
879 case IEEE80211_F_WPA2:
880 ireq->i_val = 2;
881 break;
882 case IEEE80211_F_WPA1 | IEEE80211_F_WPA2:
883 ireq->i_val = 3;
884 break;
885 default:
886 ireq->i_val = 0;
887 break;
888 }
889 break;
890 case IEEE80211_IOC_CHANLIST:
891 error = ieee80211_ioctl_getchanlist(vap, ireq);
892 break;
893 case IEEE80211_IOC_ROAMING:
894 ireq->i_val = vap->iv_roaming;
895 break;
896 case IEEE80211_IOC_PRIVACY:
897 ireq->i_val = (vap->iv_flags & IEEE80211_F_PRIVACY) != 0;
898 break;
899 case IEEE80211_IOC_DROPUNENCRYPTED:
900 ireq->i_val = (vap->iv_flags & IEEE80211_F_DROPUNENC) != 0;
901 break;
902 case IEEE80211_IOC_COUNTERMEASURES:
903 ireq->i_val = (vap->iv_flags & IEEE80211_F_COUNTERM) != 0;
904 break;
905 case IEEE80211_IOC_WME:
906 ireq->i_val = (vap->iv_flags & IEEE80211_F_WME) != 0;
907 break;
908 case IEEE80211_IOC_HIDESSID:
909 ireq->i_val = (vap->iv_flags & IEEE80211_F_HIDESSID) != 0;
910 break;
911 case IEEE80211_IOC_APBRIDGE:
912 ireq->i_val = (vap->iv_flags & IEEE80211_F_NOBRIDGE) == 0;
913 break;
914 case IEEE80211_IOC_WPAKEY:
915 error = ieee80211_ioctl_getkey(cmd, vap, ireq);
916 break;
917 case IEEE80211_IOC_CHANINFO:
918 error = ieee80211_ioctl_getchaninfo(vap, ireq);
919 break;
920 case IEEE80211_IOC_BSSID:
921 if (ireq->i_len != IEEE80211_ADDR_LEN)
922 return EINVAL;
923 if (vap->iv_state == IEEE80211_S_RUN || vap->iv_state == IEEE80211_S_SLEEP) {
924 error = copyout(vap->iv_opmode == IEEE80211_M_WDS ?
925 vap->iv_bss->ni_macaddr : vap->iv_bss->ni_bssid,
926 ireq->i_data, ireq->i_len);
927 } else
928 error = copyout(vap->iv_des_bssid, ireq->i_data,
929 ireq->i_len);
930 break;
931 case IEEE80211_IOC_WPAIE:
932 case IEEE80211_IOC_WPAIE2:
933 error = ieee80211_ioctl_getwpaie(vap, ireq, ireq->i_type);
934 break;
935 case IEEE80211_IOC_SCAN_RESULTS:
936 error = ieee80211_ioctl_getscanresults(vap, ireq);
937 break;
938 case IEEE80211_IOC_STA_STATS:
939 error = ieee80211_ioctl_getstastats(vap, ireq);
940 break;
941 case IEEE80211_IOC_TXPOWMAX:
942 ireq->i_val = vap->iv_bss->ni_txpower;
943 break;
944 case IEEE80211_IOC_STA_TXPOW:
945 error = ieee80211_ioctl_getstatxpow(vap, ireq);
946 break;
947 case IEEE80211_IOC_STA_INFO:
948 error = ieee80211_ioctl_getstainfo(vap, ireq);
949 break;
950 case IEEE80211_IOC_WME_CWMIN: /* WME: CWmin */
951 case IEEE80211_IOC_WME_CWMAX: /* WME: CWmax */
952 case IEEE80211_IOC_WME_AIFS: /* WME: AIFS */
953 case IEEE80211_IOC_WME_TXOPLIMIT: /* WME: txops limit */
954 case IEEE80211_IOC_WME_ACM: /* WME: ACM (bss only) */
955 case IEEE80211_IOC_WME_ACKPOLICY: /* WME: ACK policy (!bss only) */
956 error = ieee80211_ioctl_getwmeparam(vap, ireq);
957 break;
958 case IEEE80211_IOC_DTIM_PERIOD:
959 ireq->i_val = vap->iv_dtim_period;
960 break;
961 case IEEE80211_IOC_BEACON_INTERVAL:
962 /* NB: get from ic_bss for station mode */
963 ireq->i_val = vap->iv_bss->ni_intval;
964 break;
965 case IEEE80211_IOC_PUREG:
966 ireq->i_val = (vap->iv_flags & IEEE80211_F_PUREG) != 0;
967 break;
968 case IEEE80211_IOC_QUIET:
969 ireq->i_val = vap->iv_quiet;
970 break;
971 case IEEE80211_IOC_QUIET_COUNT:
972 ireq->i_val = vap->iv_quiet_count;
973 break;
974 case IEEE80211_IOC_QUIET_PERIOD:
975 ireq->i_val = vap->iv_quiet_period;
976 break;
977 case IEEE80211_IOC_QUIET_DUR:
978 ireq->i_val = vap->iv_quiet_duration;
979 break;
980 case IEEE80211_IOC_QUIET_OFFSET:
981 ireq->i_val = vap->iv_quiet_offset;
982 break;
983 case IEEE80211_IOC_BGSCAN:
984 ireq->i_val = (vap->iv_flags & IEEE80211_F_BGSCAN) != 0;
985 break;
986 case IEEE80211_IOC_BGSCAN_IDLE:
987 ireq->i_val = vap->iv_bgscanidle*hz/1000; /* ms */
988 break;
989 case IEEE80211_IOC_BGSCAN_INTERVAL:
990 ireq->i_val = vap->iv_bgscanintvl/hz; /* seconds */
991 break;
992 case IEEE80211_IOC_SCANVALID:
993 ireq->i_val = vap->iv_scanvalid/hz; /* seconds */
994 break;
995 case IEEE80211_IOC_FRAGTHRESHOLD:
996 ireq->i_val = vap->iv_fragthreshold;
997 break;
998 case IEEE80211_IOC_MACCMD:
999 error = ieee80211_ioctl_getmaccmd(vap, ireq);
1000 break;
1001 case IEEE80211_IOC_BURST:
1002 ireq->i_val = (vap->iv_flags & IEEE80211_F_BURST) != 0;
1003 break;
1004 case IEEE80211_IOC_BMISSTHRESHOLD:
1005 ireq->i_val = vap->iv_bmissthreshold;
1006 break;
1007 case IEEE80211_IOC_CURCHAN:
1008 error = ieee80211_ioctl_getcurchan(vap, ireq);
1009 break;
1010 case IEEE80211_IOC_SHORTGI:
1011 ireq->i_val = 0;
1012 if (vap->iv_flags_ht & IEEE80211_FHT_SHORTGI20)
1013 ireq->i_val |= IEEE80211_HTCAP_SHORTGI20;
1014 if (vap->iv_flags_ht & IEEE80211_FHT_SHORTGI40)
1015 ireq->i_val |= IEEE80211_HTCAP_SHORTGI40;
1016 break;
1017 case IEEE80211_IOC_AMPDU:
1018 ireq->i_val = 0;
1019 if (vap->iv_flags_ht & IEEE80211_FHT_AMPDU_TX)
1020 ireq->i_val |= 1;
1021 if (vap->iv_flags_ht & IEEE80211_FHT_AMPDU_RX)
1022 ireq->i_val |= 2;
1023 break;
1024 case IEEE80211_IOC_AMPDU_LIMIT:
1025 /* XXX TODO: make this a per-node thing; and leave this as global */
1026 if (vap->iv_opmode == IEEE80211_M_HOSTAP)
1027 ireq->i_val = vap->iv_ampdu_rxmax;
1028 else if (vap->iv_state == IEEE80211_S_RUN || vap->iv_state == IEEE80211_S_SLEEP)
1029 /*
1030 * XXX TODO: this isn't completely correct, as we've
1031 * negotiated the higher of the two.
1032 */
1033 ireq->i_val = _IEEE80211_MASKSHIFT( vap->iv_bss->ni_htparam,
1034 IEEE80211_HTCAP_MAXRXAMPDU);
1035 else
1036 ireq->i_val = vap->iv_ampdu_limit;
1037 break;
1038 case IEEE80211_IOC_AMPDU_DENSITY:
1039 /* XXX TODO: make this a per-node thing; and leave this as global */
1040 if (vap->iv_opmode == IEEE80211_M_STA &&
1041 (vap->iv_state == IEEE80211_S_RUN || vap->iv_state == IEEE80211_S_SLEEP))
1042 /*
1043 * XXX TODO: this isn't completely correct, as we've
1044 * negotiated the higher of the two.
1045 */
1046 ireq->i_val = _IEEE80211_MASKSHIFT(vap->iv_bss->ni_htparam,
1047 IEEE80211_HTCAP_MPDUDENSITY);
1048 else
1049 ireq->i_val = vap->iv_ampdu_density;
1050 break;
1051 case IEEE80211_IOC_AMSDU:
1052 ireq->i_val = 0;
1053 if (vap->iv_flags_ht & IEEE80211_FHT_AMSDU_TX)
1054 ireq->i_val |= 1;
1055 if (vap->iv_flags_ht & IEEE80211_FHT_AMSDU_RX)
1056 ireq->i_val |= 2;
1057 break;
1058 case IEEE80211_IOC_AMSDU_LIMIT:
1059 ireq->i_val = vap->iv_amsdu_limit; /* XXX truncation? */
1060 break;
1061 case IEEE80211_IOC_PUREN:
1062 ireq->i_val = (vap->iv_flags_ht & IEEE80211_FHT_PUREN) != 0;
1063 break;
1064 case IEEE80211_IOC_DOTH:
1065 ireq->i_val = (vap->iv_flags & IEEE80211_F_DOTH) != 0;
1066 break;
1067 case IEEE80211_IOC_REGDOMAIN:
1068 error = ieee80211_ioctl_getregdomain(vap, ireq);
1069 break;
1070 case IEEE80211_IOC_ROAM:
1071 error = ieee80211_ioctl_getroam(vap, ireq);
1072 break;
1073 case IEEE80211_IOC_TXPARAMS:
1074 error = ieee80211_ioctl_gettxparams(vap, ireq);
1075 break;
1076 case IEEE80211_IOC_HTCOMPAT:
1077 ireq->i_val = (vap->iv_flags_ht & IEEE80211_FHT_HTCOMPAT) != 0;
1078 break;
1079 case IEEE80211_IOC_DWDS:
1080 ireq->i_val = (vap->iv_flags & IEEE80211_F_DWDS) != 0;
1081 break;
1082 case IEEE80211_IOC_INACTIVITY:
1083 ireq->i_val = (vap->iv_flags_ext & IEEE80211_FEXT_INACT) != 0;
1084 break;
1085 case IEEE80211_IOC_APPIE:
1086 error = ieee80211_ioctl_getappie(vap, ireq);
1087 break;
1088 case IEEE80211_IOC_WPS:
1089 ireq->i_val = (vap->iv_flags_ext & IEEE80211_FEXT_WPS) != 0;
1090 break;
1091 case IEEE80211_IOC_TSN:
1092 ireq->i_val = (vap->iv_flags_ext & IEEE80211_FEXT_TSN) != 0;
1093 break;
1094 case IEEE80211_IOC_DFS:
1095 ireq->i_val = (vap->iv_flags_ext & IEEE80211_FEXT_DFS) != 0;
1096 break;
1097 case IEEE80211_IOC_DOTD:
1098 ireq->i_val = (vap->iv_flags_ext & IEEE80211_FEXT_DOTD) != 0;
1099 break;
1100 case IEEE80211_IOC_DEVCAPS:
1101 error = ieee80211_ioctl_getdevcaps(ic, ireq);
1102 break;
1103 case IEEE80211_IOC_HTPROTMODE:
1104 ireq->i_val = vap->iv_htprotmode;
1105 break;
1106 case IEEE80211_IOC_HTCONF:
1107 if (vap->iv_flags_ht & IEEE80211_FHT_HT) {
1108 ireq->i_val = 1;
1109 if (vap->iv_flags_ht & IEEE80211_FHT_USEHT40)
1110 ireq->i_val |= 2;
1111 } else
1112 ireq->i_val = 0;
1113 break;
1114 case IEEE80211_IOC_STA_VLAN:
1115 error = ieee80211_ioctl_getstavlan(vap, ireq);
1116 break;
1117 case IEEE80211_IOC_SMPS:
1118 if (vap->iv_opmode == IEEE80211_M_STA &&
1119 (vap->iv_state == IEEE80211_S_RUN || vap->iv_state == IEEE80211_S_SLEEP)) {
1120 if (vap->iv_bss->ni_flags & IEEE80211_NODE_MIMO_RTS)
1121 ireq->i_val = IEEE80211_HTCAP_SMPS_DYNAMIC;
1122 else if (vap->iv_bss->ni_flags & IEEE80211_NODE_MIMO_PS)
1123 ireq->i_val = IEEE80211_HTCAP_SMPS_ENA;
1124 else
1125 ireq->i_val = IEEE80211_HTCAP_SMPS_OFF;
1126 } else
1127 ireq->i_val = vap->iv_htcaps & IEEE80211_HTCAP_SMPS;
1128 break;
1129 case IEEE80211_IOC_RIFS:
1130 if (vap->iv_opmode == IEEE80211_M_STA &&
1131 (vap->iv_state == IEEE80211_S_RUN || vap->iv_state == IEEE80211_S_SLEEP))
1132 ireq->i_val =
1133 (vap->iv_bss->ni_flags & IEEE80211_NODE_RIFS) != 0;
1134 else
1135 ireq->i_val =
1136 (vap->iv_flags_ht & IEEE80211_FHT_RIFS) != 0;
1137 break;
1138 case IEEE80211_IOC_STBC:
1139 ireq->i_val = 0;
1140 if (vap->iv_flags_ht & IEEE80211_FHT_STBC_TX)
1141 ireq->i_val |= 1;
1142 if (vap->iv_flags_ht & IEEE80211_FHT_STBC_RX)
1143 ireq->i_val |= 2;
1144 break;
1145 case IEEE80211_IOC_LDPC:
1146 ireq->i_val = 0;
1147 if (vap->iv_flags_ht & IEEE80211_FHT_LDPC_TX)
1148 ireq->i_val |= 1;
1149 if (vap->iv_flags_ht & IEEE80211_FHT_LDPC_RX)
1150 ireq->i_val |= 2;
1151 break;
1152 case IEEE80211_IOC_UAPSD:
1153 ireq->i_val = 0;
1154 if (vap->iv_flags_ext & IEEE80211_FEXT_UAPSD)
1155 ireq->i_val = 1;
1156 break;
1157 case IEEE80211_IOC_VHTCONF:
1158 ireq->i_val = vap->iv_vht_flags & IEEE80211_FVHT_MASK;
1159 break;
1160 default:
1161 error = ieee80211_ioctl_getdefault(vap, ireq);
1162 break;
1163 }
1164 return error;
1165 }
1166
1167 static int
ieee80211_ioctl_setkey(struct ieee80211vap * vap,struct ieee80211req * ireq)1168 ieee80211_ioctl_setkey(struct ieee80211vap *vap, struct ieee80211req *ireq)
1169 {
1170 struct ieee80211req_key ik;
1171 struct ieee80211_node *ni;
1172 struct ieee80211_key *wk;
1173 uint16_t kid;
1174 int error, i;
1175
1176 if (ireq->i_len != sizeof(ik))
1177 return EINVAL;
1178 error = copyin(ireq->i_data, &ik, sizeof(ik));
1179 if (error)
1180 return error;
1181 /* NB: cipher support is verified by ieee80211_crypt_newkey */
1182 /* NB: this also checks ik->ik_keylen > sizeof(wk->wk_key) */
1183 if (ik.ik_keylen > sizeof(ik.ik_keydata))
1184 return E2BIG;
1185 kid = ik.ik_keyix;
1186 if (kid == IEEE80211_KEYIX_NONE) {
1187 /* XXX unicast keys currently must be tx/rx */
1188 if (ik.ik_flags != (IEEE80211_KEY_XMIT | IEEE80211_KEY_RECV))
1189 return EINVAL;
1190 if (vap->iv_opmode == IEEE80211_M_STA) {
1191 ni = ieee80211_ref_node(vap->iv_bss);
1192 if (!IEEE80211_ADDR_EQ(ik.ik_macaddr, ni->ni_bssid)) {
1193 ieee80211_free_node(ni);
1194 return EADDRNOTAVAIL;
1195 }
1196 } else {
1197 ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap,
1198 ik.ik_macaddr);
1199 if (ni == NULL)
1200 return ENOENT;
1201 }
1202 wk = &ni->ni_ucastkey;
1203 } else {
1204 if (kid >= IEEE80211_WEP_NKID)
1205 return EINVAL;
1206 wk = &vap->iv_nw_keys[kid];
1207 /*
1208 * Global slots start off w/o any assigned key index.
1209 * Force one here for consistency with IEEE80211_IOC_WEPKEY.
1210 */
1211 if (wk->wk_keyix == IEEE80211_KEYIX_NONE)
1212 wk->wk_keyix = kid;
1213 ni = NULL;
1214 }
1215 error = 0;
1216 ieee80211_key_update_begin(vap);
1217 if (ieee80211_crypto_newkey(vap, ik.ik_type, ik.ik_flags, wk)) {
1218 wk->wk_keylen = ik.ik_keylen;
1219 /* NB: MIC presence is implied by cipher type */
1220 if (wk->wk_keylen > IEEE80211_KEYBUF_SIZE)
1221 wk->wk_keylen = IEEE80211_KEYBUF_SIZE;
1222 for (i = 0; i < IEEE80211_TID_SIZE; i++)
1223 wk->wk_keyrsc[i] = ik.ik_keyrsc;
1224 wk->wk_keytsc = 0; /* new key, reset */
1225 memset(wk->wk_key, 0, sizeof(wk->wk_key));
1226 memcpy(wk->wk_key, ik.ik_keydata, ik.ik_keylen);
1227 IEEE80211_ADDR_COPY(wk->wk_macaddr,
1228 ni != NULL ? ni->ni_macaddr : ik.ik_macaddr);
1229 if (!ieee80211_crypto_setkey(vap, wk))
1230 error = EIO;
1231 else if ((ik.ik_flags & IEEE80211_KEY_DEFAULT))
1232 /*
1233 * Inform the driver that this is the default
1234 * transmit key. Now, ideally we'd just set
1235 * a flag in the key update that would
1236 * say "yes, we're the default key", but
1237 * that currently isn't the way the ioctl ->
1238 * key interface works.
1239 */
1240 ieee80211_crypto_set_deftxkey(vap, kid);
1241 } else
1242 error = ENXIO;
1243 ieee80211_key_update_end(vap);
1244 if (ni != NULL)
1245 ieee80211_free_node(ni);
1246 return error;
1247 }
1248
1249 static int
ieee80211_ioctl_delkey(struct ieee80211vap * vap,struct ieee80211req * ireq)1250 ieee80211_ioctl_delkey(struct ieee80211vap *vap, struct ieee80211req *ireq)
1251 {
1252 struct ieee80211req_del_key dk;
1253 int kid, error;
1254
1255 if (ireq->i_len != sizeof(dk))
1256 return EINVAL;
1257 error = copyin(ireq->i_data, &dk, sizeof(dk));
1258 if (error)
1259 return error;
1260 kid = dk.idk_keyix;
1261 /* XXX uint8_t -> uint16_t */
1262 if (dk.idk_keyix == (uint8_t) IEEE80211_KEYIX_NONE) {
1263 struct ieee80211_node *ni;
1264
1265 if (vap->iv_opmode == IEEE80211_M_STA) {
1266 ni = ieee80211_ref_node(vap->iv_bss);
1267 if (!IEEE80211_ADDR_EQ(dk.idk_macaddr, ni->ni_bssid)) {
1268 ieee80211_free_node(ni);
1269 return EADDRNOTAVAIL;
1270 }
1271 } else {
1272 ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap,
1273 dk.idk_macaddr);
1274 if (ni == NULL)
1275 return ENOENT;
1276 }
1277 /* XXX error return */
1278 ieee80211_node_delucastkey(ni);
1279 ieee80211_free_node(ni);
1280 } else {
1281 if (kid >= IEEE80211_WEP_NKID)
1282 return EINVAL;
1283 /* XXX error return */
1284 ieee80211_crypto_delkey(vap, &vap->iv_nw_keys[kid]);
1285 }
1286 return 0;
1287 }
1288
1289 struct mlmeop {
1290 struct ieee80211vap *vap;
1291 int op;
1292 int reason;
1293 };
1294
1295 static void
mlmedebug(struct ieee80211vap * vap,const uint8_t mac[IEEE80211_ADDR_LEN],int op,int reason)1296 mlmedebug(struct ieee80211vap *vap, const uint8_t mac[IEEE80211_ADDR_LEN],
1297 int op, int reason)
1298 {
1299 #ifdef IEEE80211_DEBUG
1300 static const struct {
1301 int mask;
1302 const char *opstr;
1303 } ops[] = {
1304 { 0, "op#0" },
1305 { IEEE80211_MSG_IOCTL | IEEE80211_MSG_STATE |
1306 IEEE80211_MSG_ASSOC, "assoc" },
1307 { IEEE80211_MSG_IOCTL | IEEE80211_MSG_STATE |
1308 IEEE80211_MSG_ASSOC, "disassoc" },
1309 { IEEE80211_MSG_IOCTL | IEEE80211_MSG_STATE |
1310 IEEE80211_MSG_AUTH, "deauth" },
1311 { IEEE80211_MSG_IOCTL | IEEE80211_MSG_STATE |
1312 IEEE80211_MSG_AUTH, "authorize" },
1313 { IEEE80211_MSG_IOCTL | IEEE80211_MSG_STATE |
1314 IEEE80211_MSG_AUTH, "unauthorize" },
1315 };
1316
1317 if (op == IEEE80211_MLME_AUTH) {
1318 IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_IOCTL |
1319 IEEE80211_MSG_STATE | IEEE80211_MSG_AUTH, mac,
1320 "station authenticate %s via MLME (reason: %d (%s))",
1321 reason == IEEE80211_STATUS_SUCCESS ? "ACCEPT" : "REJECT",
1322 reason, ieee80211_reason_to_string(reason));
1323 } else if (!(IEEE80211_MLME_ASSOC <= op && op <= IEEE80211_MLME_AUTH)) {
1324 IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_ANY, mac,
1325 "unknown MLME request %d (reason: %d (%s))", op, reason,
1326 ieee80211_reason_to_string(reason));
1327 } else if (reason == IEEE80211_STATUS_SUCCESS) {
1328 IEEE80211_NOTE_MAC(vap, ops[op].mask, mac,
1329 "station %s via MLME", ops[op].opstr);
1330 } else {
1331 IEEE80211_NOTE_MAC(vap, ops[op].mask, mac,
1332 "station %s via MLME (reason: %d (%s))", ops[op].opstr,
1333 reason, ieee80211_reason_to_string(reason));
1334 }
1335 #endif /* IEEE80211_DEBUG */
1336 }
1337
1338 static void
domlme(void * arg,struct ieee80211_node * ni)1339 domlme(void *arg, struct ieee80211_node *ni)
1340 {
1341 struct mlmeop *mop = arg;
1342 struct ieee80211vap *vap = ni->ni_vap;
1343
1344 if (vap != mop->vap)
1345 return;
1346 /*
1347 * NB: if ni_associd is zero then the node is already cleaned
1348 * up and we don't need to do this (we're safely holding a
1349 * reference but should otherwise not modify it's state).
1350 */
1351 if (ni->ni_associd == 0)
1352 return;
1353 mlmedebug(vap, ni->ni_macaddr, mop->op, mop->reason);
1354 if (mop->op == IEEE80211_MLME_DEAUTH) {
1355 IEEE80211_SEND_MGMT(ni, IEEE80211_FC0_SUBTYPE_DEAUTH,
1356 mop->reason);
1357 } else {
1358 IEEE80211_SEND_MGMT(ni, IEEE80211_FC0_SUBTYPE_DISASSOC,
1359 mop->reason);
1360 }
1361 ieee80211_node_leave(ni);
1362 }
1363
1364 static int
setmlme_dropsta(struct ieee80211vap * vap,const uint8_t mac[IEEE80211_ADDR_LEN],struct mlmeop * mlmeop)1365 setmlme_dropsta(struct ieee80211vap *vap,
1366 const uint8_t mac[IEEE80211_ADDR_LEN], struct mlmeop *mlmeop)
1367 {
1368 struct ieee80211_node_table *nt = &vap->iv_ic->ic_sta;
1369 struct ieee80211_node *ni;
1370 int error = 0;
1371
1372 /* NB: the broadcast address means do 'em all */
1373 if (!IEEE80211_ADDR_EQ(mac, vap->iv_ifp->if_broadcastaddr)) {
1374 IEEE80211_NODE_LOCK(nt);
1375 ni = ieee80211_find_node_locked(nt, mac);
1376 IEEE80211_NODE_UNLOCK(nt);
1377 /*
1378 * Don't do the node update inside the node
1379 * table lock. This unfortunately causes LORs
1380 * with drivers and their TX paths.
1381 */
1382 if (ni != NULL) {
1383 domlme(mlmeop, ni);
1384 ieee80211_free_node(ni);
1385 } else
1386 error = ENOENT;
1387 } else {
1388 ieee80211_iterate_nodes(nt, domlme, mlmeop);
1389 }
1390 return error;
1391 }
1392
1393 static int
setmlme_common(struct ieee80211vap * vap,int op,const uint8_t mac[IEEE80211_ADDR_LEN],int reason)1394 setmlme_common(struct ieee80211vap *vap, int op,
1395 const uint8_t mac[IEEE80211_ADDR_LEN], int reason)
1396 {
1397 struct ieee80211com *ic = vap->iv_ic;
1398 struct ieee80211_node_table *nt = &ic->ic_sta;
1399 struct ieee80211_node *ni;
1400 struct mlmeop mlmeop;
1401 int error;
1402
1403 error = 0;
1404 switch (op) {
1405 case IEEE80211_MLME_DISASSOC:
1406 case IEEE80211_MLME_DEAUTH:
1407 switch (vap->iv_opmode) {
1408 case IEEE80211_M_STA:
1409 mlmedebug(vap, vap->iv_bss->ni_macaddr, op, reason);
1410 /* XXX not quite right */
1411 ieee80211_new_state(vap, IEEE80211_S_INIT, reason);
1412 break;
1413 case IEEE80211_M_HOSTAP:
1414 mlmeop.vap = vap;
1415 mlmeop.op = op;
1416 mlmeop.reason = reason;
1417 error = setmlme_dropsta(vap, mac, &mlmeop);
1418 break;
1419 case IEEE80211_M_WDS:
1420 /* XXX user app should send raw frame? */
1421 if (op != IEEE80211_MLME_DEAUTH) {
1422 error = EINVAL;
1423 break;
1424 }
1425 #if 0
1426 /* XXX accept any address, simplifies user code */
1427 if (!IEEE80211_ADDR_EQ(mac, vap->iv_bss->ni_macaddr)) {
1428 error = EINVAL;
1429 break;
1430 }
1431 #endif
1432 mlmedebug(vap, vap->iv_bss->ni_macaddr, op, reason);
1433 ni = ieee80211_ref_node(vap->iv_bss);
1434 IEEE80211_SEND_MGMT(ni,
1435 IEEE80211_FC0_SUBTYPE_DEAUTH, reason);
1436 ieee80211_free_node(ni);
1437 break;
1438 case IEEE80211_M_MBSS:
1439 IEEE80211_NODE_LOCK(nt);
1440 ni = ieee80211_find_node_locked(nt, mac);
1441 /*
1442 * Don't do the node update inside the node
1443 * table lock. This unfortunately causes LORs
1444 * with drivers and their TX paths.
1445 */
1446 IEEE80211_NODE_UNLOCK(nt);
1447 if (ni != NULL) {
1448 ieee80211_node_leave(ni);
1449 ieee80211_free_node(ni);
1450 } else {
1451 error = ENOENT;
1452 }
1453 break;
1454 default:
1455 error = EINVAL;
1456 break;
1457 }
1458 break;
1459 case IEEE80211_MLME_AUTHORIZE:
1460 case IEEE80211_MLME_UNAUTHORIZE:
1461 if (vap->iv_opmode != IEEE80211_M_HOSTAP &&
1462 vap->iv_opmode != IEEE80211_M_WDS) {
1463 error = EINVAL;
1464 break;
1465 }
1466 IEEE80211_NODE_LOCK(nt);
1467 ni = ieee80211_find_vap_node_locked(nt, vap, mac);
1468 /*
1469 * Don't do the node update inside the node
1470 * table lock. This unfortunately causes LORs
1471 * with drivers and their TX paths.
1472 */
1473 IEEE80211_NODE_UNLOCK(nt);
1474 if (ni != NULL) {
1475 mlmedebug(vap, mac, op, reason);
1476 if (op == IEEE80211_MLME_AUTHORIZE)
1477 ieee80211_node_authorize(ni);
1478 else
1479 ieee80211_node_unauthorize(ni);
1480 ieee80211_free_node(ni);
1481 } else
1482 error = ENOENT;
1483 break;
1484 case IEEE80211_MLME_AUTH:
1485 if (vap->iv_opmode != IEEE80211_M_HOSTAP) {
1486 error = EINVAL;
1487 break;
1488 }
1489 IEEE80211_NODE_LOCK(nt);
1490 ni = ieee80211_find_vap_node_locked(nt, vap, mac);
1491 /*
1492 * Don't do the node update inside the node
1493 * table lock. This unfortunately causes LORs
1494 * with drivers and their TX paths.
1495 */
1496 IEEE80211_NODE_UNLOCK(nt);
1497 if (ni != NULL) {
1498 mlmedebug(vap, mac, op, reason);
1499 if (reason == IEEE80211_STATUS_SUCCESS) {
1500 IEEE80211_SEND_MGMT(ni,
1501 IEEE80211_FC0_SUBTYPE_AUTH, 2);
1502 /*
1503 * For shared key auth, just continue the
1504 * exchange. Otherwise when 802.1x is not in
1505 * use mark the port authorized at this point
1506 * so traffic can flow.
1507 */
1508 if (ni->ni_authmode != IEEE80211_AUTH_8021X &&
1509 ni->ni_challenge == NULL)
1510 ieee80211_node_authorize(ni);
1511 } else {
1512 vap->iv_stats.is_rx_acl++;
1513 ieee80211_send_error(ni, ni->ni_macaddr,
1514 IEEE80211_FC0_SUBTYPE_AUTH, 2|(reason<<16));
1515 ieee80211_node_leave(ni);
1516 }
1517 ieee80211_free_node(ni);
1518 } else
1519 error = ENOENT;
1520 break;
1521 default:
1522 error = EINVAL;
1523 break;
1524 }
1525 return error;
1526 }
1527
1528 struct scanlookup {
1529 const uint8_t *mac;
1530 int esslen;
1531 const uint8_t *essid;
1532 const struct ieee80211_scan_entry *se;
1533 };
1534
1535 /*
1536 * Match mac address and any ssid.
1537 */
1538 static void
mlmelookup(void * arg,const struct ieee80211_scan_entry * se)1539 mlmelookup(void *arg, const struct ieee80211_scan_entry *se)
1540 {
1541 struct scanlookup *look = arg;
1542
1543 if (!IEEE80211_ADDR_EQ(look->mac, se->se_macaddr))
1544 return;
1545 if (look->esslen != 0) {
1546 if (se->se_ssid[1] != look->esslen)
1547 return;
1548 if (memcmp(look->essid, se->se_ssid+2, look->esslen))
1549 return;
1550 }
1551 look->se = se;
1552 }
1553
1554 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])1555 setmlme_assoc_sta(struct ieee80211vap *vap,
1556 const uint8_t mac[IEEE80211_ADDR_LEN], int ssid_len,
1557 const uint8_t ssid[IEEE80211_NWID_LEN])
1558 {
1559 struct scanlookup lookup;
1560
1561 KASSERT(vap->iv_opmode == IEEE80211_M_STA,
1562 ("expected opmode STA not %s",
1563 ieee80211_opmode_name[vap->iv_opmode]));
1564
1565 /* NB: this is racey if roaming is !manual */
1566 lookup.se = NULL;
1567 lookup.mac = mac;
1568 lookup.esslen = ssid_len;
1569 lookup.essid = ssid;
1570 ieee80211_scan_iterate(vap, mlmelookup, &lookup);
1571 if (lookup.se == NULL)
1572 return ENOENT;
1573 mlmedebug(vap, mac, IEEE80211_MLME_ASSOC, 0);
1574 if (!ieee80211_sta_join(vap, lookup.se->se_chan, lookup.se))
1575 return EIO; /* XXX unique but could be better */
1576 return 0;
1577 }
1578
1579 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])1580 setmlme_assoc_adhoc(struct ieee80211vap *vap,
1581 const uint8_t mac[IEEE80211_ADDR_LEN], int ssid_len,
1582 const uint8_t ssid[IEEE80211_NWID_LEN])
1583 {
1584 struct ieee80211_scan_req *sr;
1585 int error;
1586
1587 KASSERT(vap->iv_opmode == IEEE80211_M_IBSS ||
1588 vap->iv_opmode == IEEE80211_M_AHDEMO,
1589 ("expected opmode IBSS or AHDEMO not %s",
1590 ieee80211_opmode_name[vap->iv_opmode]));
1591
1592 if (ssid_len == 0 || ssid_len > IEEE80211_NWID_LEN)
1593 return EINVAL;
1594
1595 sr = IEEE80211_MALLOC(sizeof(*sr), M_TEMP,
1596 IEEE80211_M_NOWAIT | IEEE80211_M_ZERO);
1597 if (sr == NULL)
1598 return ENOMEM;
1599
1600 /* NB: IEEE80211_IOC_SSID call missing for ap_scan=2. */
1601 memset(vap->iv_des_ssid[0].ssid, 0, IEEE80211_NWID_LEN);
1602 vap->iv_des_ssid[0].len = ssid_len;
1603 memcpy(vap->iv_des_ssid[0].ssid, ssid, ssid_len);
1604 vap->iv_des_nssid = 1;
1605
1606 sr->sr_flags = IEEE80211_IOC_SCAN_ACTIVE | IEEE80211_IOC_SCAN_ONCE;
1607 sr->sr_duration = IEEE80211_IOC_SCAN_FOREVER;
1608 memcpy(sr->sr_ssid[0].ssid, ssid, ssid_len);
1609 sr->sr_ssid[0].len = ssid_len;
1610 sr->sr_nssid = 1;
1611
1612 error = ieee80211_scanreq(vap, sr);
1613
1614 IEEE80211_FREE(sr, M_TEMP);
1615 return error;
1616 }
1617
1618 static int
ieee80211_ioctl_setmlme(struct ieee80211vap * vap,struct ieee80211req * ireq)1619 ieee80211_ioctl_setmlme(struct ieee80211vap *vap, struct ieee80211req *ireq)
1620 {
1621 struct ieee80211req_mlme mlme;
1622 int error;
1623
1624 if (ireq->i_len != sizeof(mlme))
1625 return EINVAL;
1626 error = copyin(ireq->i_data, &mlme, sizeof(mlme));
1627 if (error)
1628 return error;
1629 if (vap->iv_opmode == IEEE80211_M_STA &&
1630 mlme.im_op == IEEE80211_MLME_ASSOC)
1631 return setmlme_assoc_sta(vap, mlme.im_macaddr,
1632 vap->iv_des_ssid[0].len, vap->iv_des_ssid[0].ssid);
1633 else if ((vap->iv_opmode == IEEE80211_M_IBSS ||
1634 vap->iv_opmode == IEEE80211_M_AHDEMO) &&
1635 mlme.im_op == IEEE80211_MLME_ASSOC)
1636 return setmlme_assoc_adhoc(vap, mlme.im_macaddr,
1637 mlme.im_ssid_len, mlme.im_ssid);
1638 else
1639 return setmlme_common(vap, mlme.im_op,
1640 mlme.im_macaddr, mlme.im_reason);
1641 }
1642
1643 static int
ieee80211_ioctl_macmac(struct ieee80211vap * vap,struct ieee80211req * ireq)1644 ieee80211_ioctl_macmac(struct ieee80211vap *vap, struct ieee80211req *ireq)
1645 {
1646 uint8_t mac[IEEE80211_ADDR_LEN];
1647 const struct ieee80211_aclator *acl = vap->iv_acl;
1648 int error;
1649
1650 if (ireq->i_len != sizeof(mac))
1651 return EINVAL;
1652 error = copyin(ireq->i_data, mac, ireq->i_len);
1653 if (error)
1654 return error;
1655 if (acl == NULL) {
1656 acl = ieee80211_aclator_get("mac");
1657 if (acl == NULL || !acl->iac_attach(vap))
1658 return EINVAL;
1659 vap->iv_acl = acl;
1660 }
1661 if (ireq->i_type == IEEE80211_IOC_ADDMAC)
1662 acl->iac_add(vap, mac);
1663 else
1664 acl->iac_remove(vap, mac);
1665 return 0;
1666 }
1667
1668 static int
ieee80211_ioctl_setmaccmd(struct ieee80211vap * vap,struct ieee80211req * ireq)1669 ieee80211_ioctl_setmaccmd(struct ieee80211vap *vap, struct ieee80211req *ireq)
1670 {
1671 const struct ieee80211_aclator *acl = vap->iv_acl;
1672
1673 switch (ireq->i_val) {
1674 case IEEE80211_MACCMD_POLICY_OPEN:
1675 case IEEE80211_MACCMD_POLICY_ALLOW:
1676 case IEEE80211_MACCMD_POLICY_DENY:
1677 case IEEE80211_MACCMD_POLICY_RADIUS:
1678 if (acl == NULL) {
1679 acl = ieee80211_aclator_get("mac");
1680 if (acl == NULL || !acl->iac_attach(vap))
1681 return EINVAL;
1682 vap->iv_acl = acl;
1683 }
1684 acl->iac_setpolicy(vap, ireq->i_val);
1685 break;
1686 case IEEE80211_MACCMD_FLUSH:
1687 if (acl != NULL)
1688 acl->iac_flush(vap);
1689 /* NB: silently ignore when not in use */
1690 break;
1691 case IEEE80211_MACCMD_DETACH:
1692 if (acl != NULL) {
1693 vap->iv_acl = NULL;
1694 acl->iac_detach(vap);
1695 }
1696 break;
1697 default:
1698 if (acl == NULL)
1699 return EINVAL;
1700 else
1701 return acl->iac_setioctl(vap, ireq);
1702 }
1703 return 0;
1704 }
1705
1706 static int
ieee80211_ioctl_setchanlist(struct ieee80211vap * vap,struct ieee80211req * ireq)1707 ieee80211_ioctl_setchanlist(struct ieee80211vap *vap, struct ieee80211req *ireq)
1708 {
1709 struct ieee80211com *ic = vap->iv_ic;
1710 uint8_t *chanlist, *list;
1711 int i, nchan, maxchan, error;
1712
1713 if (ireq->i_len > sizeof(ic->ic_chan_active))
1714 ireq->i_len = sizeof(ic->ic_chan_active);
1715 list = IEEE80211_MALLOC(ireq->i_len + IEEE80211_CHAN_BYTES, M_TEMP,
1716 IEEE80211_M_NOWAIT | IEEE80211_M_ZERO);
1717 if (list == NULL)
1718 return ENOMEM;
1719 error = copyin(ireq->i_data, list, ireq->i_len);
1720 if (error) {
1721 IEEE80211_FREE(list, M_TEMP);
1722 return error;
1723 }
1724 nchan = 0;
1725 chanlist = list + ireq->i_len; /* NB: zero'd already */
1726 maxchan = ireq->i_len * NBBY;
1727 for (i = 0; i < ic->ic_nchans; i++) {
1728 const struct ieee80211_channel *c = &ic->ic_channels[i];
1729 /*
1730 * Calculate the intersection of the user list and the
1731 * available channels so users can do things like specify
1732 * 1-255 to get all available channels.
1733 */
1734 if (c->ic_ieee < maxchan && isset(list, c->ic_ieee)) {
1735 setbit(chanlist, c->ic_ieee);
1736 nchan++;
1737 }
1738 }
1739 if (nchan == 0) {
1740 IEEE80211_FREE(list, M_TEMP);
1741 return EINVAL;
1742 }
1743 if (ic->ic_bsschan != IEEE80211_CHAN_ANYC && /* XXX */
1744 isclr(chanlist, ic->ic_bsschan->ic_ieee))
1745 ic->ic_bsschan = IEEE80211_CHAN_ANYC;
1746 memcpy(ic->ic_chan_active, chanlist, IEEE80211_CHAN_BYTES);
1747 ieee80211_scan_flush(vap);
1748 IEEE80211_FREE(list, M_TEMP);
1749 return ENETRESET;
1750 }
1751
1752 static int
ieee80211_ioctl_setstastats(struct ieee80211vap * vap,struct ieee80211req * ireq)1753 ieee80211_ioctl_setstastats(struct ieee80211vap *vap, struct ieee80211req *ireq)
1754 {
1755 struct ieee80211_node *ni;
1756 uint8_t macaddr[IEEE80211_ADDR_LEN];
1757 int error;
1758
1759 /*
1760 * NB: we could copyin ieee80211req_sta_stats so apps
1761 * could make selective changes but that's overkill;
1762 * just clear all stats for now.
1763 */
1764 if (ireq->i_len < IEEE80211_ADDR_LEN)
1765 return EINVAL;
1766 error = copyin(ireq->i_data, macaddr, IEEE80211_ADDR_LEN);
1767 if (error != 0)
1768 return error;
1769 ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap, macaddr);
1770 if (ni == NULL)
1771 return ENOENT;
1772 /* XXX require ni_vap == vap? */
1773 memset(&ni->ni_stats, 0, sizeof(ni->ni_stats));
1774 ieee80211_free_node(ni);
1775 return 0;
1776 }
1777
1778 static int
ieee80211_ioctl_setstatxpow(struct ieee80211vap * vap,struct ieee80211req * ireq)1779 ieee80211_ioctl_setstatxpow(struct ieee80211vap *vap, struct ieee80211req *ireq)
1780 {
1781 struct ieee80211_node *ni;
1782 struct ieee80211req_sta_txpow txpow;
1783 int error;
1784
1785 if (ireq->i_len != sizeof(txpow))
1786 return EINVAL;
1787 error = copyin(ireq->i_data, &txpow, sizeof(txpow));
1788 if (error != 0)
1789 return error;
1790 ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap, txpow.it_macaddr);
1791 if (ni == NULL)
1792 return ENOENT;
1793 ni->ni_txpower = txpow.it_txpow;
1794 ieee80211_free_node(ni);
1795 return error;
1796 }
1797
1798 static int
ieee80211_ioctl_setwmeparam(struct ieee80211vap * vap,struct ieee80211req * ireq)1799 ieee80211_ioctl_setwmeparam(struct ieee80211vap *vap, struct ieee80211req *ireq)
1800 {
1801 struct ieee80211com *ic = vap->iv_ic;
1802 struct ieee80211_wme_state *wme = &ic->ic_wme;
1803 struct wmeParams *wmep, *chanp;
1804 int isbss, ac, aggrmode;
1805
1806 if ((ic->ic_caps & IEEE80211_C_WME) == 0)
1807 return EOPNOTSUPP;
1808
1809 isbss = (ireq->i_len & IEEE80211_WMEPARAM_BSS);
1810 ac = (ireq->i_len & IEEE80211_WMEPARAM_VAL);
1811 aggrmode = (wme->wme_flags & WME_F_AGGRMODE);
1812 if (ac >= WME_NUM_AC)
1813 ac = WME_AC_BE;
1814 if (isbss) {
1815 chanp = &wme->wme_bssChanParams.cap_wmeParams[ac];
1816 wmep = &wme->wme_wmeBssChanParams.cap_wmeParams[ac];
1817 } else {
1818 chanp = &wme->wme_chanParams.cap_wmeParams[ac];
1819 wmep = &wme->wme_wmeChanParams.cap_wmeParams[ac];
1820 }
1821 switch (ireq->i_type) {
1822 case IEEE80211_IOC_WME_CWMIN: /* WME: CWmin */
1823 wmep->wmep_logcwmin = ireq->i_val;
1824 if (!isbss || !aggrmode)
1825 chanp->wmep_logcwmin = ireq->i_val;
1826 break;
1827 case IEEE80211_IOC_WME_CWMAX: /* WME: CWmax */
1828 wmep->wmep_logcwmax = ireq->i_val;
1829 if (!isbss || !aggrmode)
1830 chanp->wmep_logcwmax = ireq->i_val;
1831 break;
1832 case IEEE80211_IOC_WME_AIFS: /* WME: AIFS */
1833 wmep->wmep_aifsn = ireq->i_val;
1834 if (!isbss || !aggrmode)
1835 chanp->wmep_aifsn = ireq->i_val;
1836 break;
1837 case IEEE80211_IOC_WME_TXOPLIMIT: /* WME: txops limit */
1838 wmep->wmep_txopLimit = ireq->i_val;
1839 if (!isbss || !aggrmode)
1840 chanp->wmep_txopLimit = ireq->i_val;
1841 break;
1842 case IEEE80211_IOC_WME_ACM: /* WME: ACM (bss only) */
1843 wmep->wmep_acm = ireq->i_val;
1844 if (!aggrmode)
1845 chanp->wmep_acm = ireq->i_val;
1846 break;
1847 case IEEE80211_IOC_WME_ACKPOLICY: /* WME: ACK policy (!bss only)*/
1848 wmep->wmep_noackPolicy = chanp->wmep_noackPolicy =
1849 (ireq->i_val) == 0;
1850 break;
1851 }
1852 ieee80211_wme_updateparams(vap);
1853 return 0;
1854 }
1855
1856 static int
find11gchannel(struct ieee80211com * ic,int start,int freq)1857 find11gchannel(struct ieee80211com *ic, int start, int freq)
1858 {
1859 const struct ieee80211_channel *c;
1860 int i;
1861
1862 for (i = start+1; i < ic->ic_nchans; i++) {
1863 c = &ic->ic_channels[i];
1864 if (c->ic_freq == freq && IEEE80211_IS_CHAN_ANYG(c))
1865 return 1;
1866 }
1867 /* NB: should not be needed but in case things are mis-sorted */
1868 for (i = 0; i < start; i++) {
1869 c = &ic->ic_channels[i];
1870 if (c->ic_freq == freq && IEEE80211_IS_CHAN_ANYG(c))
1871 return 1;
1872 }
1873 return 0;
1874 }
1875
1876 static struct ieee80211_channel *
findchannel(struct ieee80211com * ic,int ieee,int mode)1877 findchannel(struct ieee80211com *ic, int ieee, int mode)
1878 {
1879 static const u_int chanflags[IEEE80211_MODE_MAX] = {
1880 [IEEE80211_MODE_AUTO] = 0,
1881 [IEEE80211_MODE_11A] = IEEE80211_CHAN_A,
1882 [IEEE80211_MODE_11B] = IEEE80211_CHAN_B,
1883 [IEEE80211_MODE_11G] = IEEE80211_CHAN_G,
1884 [IEEE80211_MODE_FH] = IEEE80211_CHAN_FHSS,
1885 [IEEE80211_MODE_TURBO_A] = IEEE80211_CHAN_108A,
1886 [IEEE80211_MODE_TURBO_G] = IEEE80211_CHAN_108G,
1887 [IEEE80211_MODE_STURBO_A] = IEEE80211_CHAN_STURBO,
1888 [IEEE80211_MODE_HALF] = IEEE80211_CHAN_HALF,
1889 [IEEE80211_MODE_QUARTER] = IEEE80211_CHAN_QUARTER,
1890 /* NB: handled specially below */
1891 [IEEE80211_MODE_11NA] = IEEE80211_CHAN_A,
1892 [IEEE80211_MODE_11NG] = IEEE80211_CHAN_G,
1893 [IEEE80211_MODE_VHT_5GHZ] = IEEE80211_CHAN_A,
1894 [IEEE80211_MODE_VHT_2GHZ] = IEEE80211_CHAN_G,
1895 };
1896 u_int modeflags;
1897 int i;
1898
1899 modeflags = chanflags[mode];
1900 for (i = 0; i < ic->ic_nchans; i++) {
1901 struct ieee80211_channel *c = &ic->ic_channels[i];
1902
1903 if (c->ic_ieee != ieee)
1904 continue;
1905 if (mode == IEEE80211_MODE_AUTO) {
1906 /* ignore turbo channels for autoselect */
1907 if (IEEE80211_IS_CHAN_TURBO(c))
1908 continue;
1909 /*
1910 * XXX special-case 11b/g channels so we
1911 * always select the g channel if both
1912 * are present.
1913 * XXX prefer HT to non-HT?
1914 */
1915 if (!IEEE80211_IS_CHAN_B(c) ||
1916 !find11gchannel(ic, i, c->ic_freq))
1917 return c;
1918 } else {
1919 /* must check VHT specifically */
1920 if ((mode == IEEE80211_MODE_VHT_5GHZ ||
1921 mode == IEEE80211_MODE_VHT_2GHZ) &&
1922 !IEEE80211_IS_CHAN_VHT(c))
1923 continue;
1924
1925 /*
1926 * Must check HT specially - only match on HT,
1927 * not HT+VHT channels
1928 */
1929 if ((mode == IEEE80211_MODE_11NA ||
1930 mode == IEEE80211_MODE_11NG) &&
1931 !IEEE80211_IS_CHAN_HT(c))
1932 continue;
1933
1934 if ((mode == IEEE80211_MODE_11NA ||
1935 mode == IEEE80211_MODE_11NG) &&
1936 IEEE80211_IS_CHAN_VHT(c))
1937 continue;
1938
1939 /* Check that the modeflags above match */
1940 if ((c->ic_flags & modeflags) == modeflags)
1941 return c;
1942 }
1943 }
1944 return NULL;
1945 }
1946
1947 /*
1948 * Check the specified against any desired mode (aka netband).
1949 * This is only used (presently) when operating in hostap mode
1950 * to enforce consistency.
1951 */
1952 static int
check_mode_consistency(const struct ieee80211_channel * c,int mode)1953 check_mode_consistency(const struct ieee80211_channel *c, int mode)
1954 {
1955 KASSERT(c != IEEE80211_CHAN_ANYC, ("oops, no channel"));
1956
1957 switch (mode) {
1958 case IEEE80211_MODE_11B:
1959 return (IEEE80211_IS_CHAN_B(c));
1960 case IEEE80211_MODE_11G:
1961 return (IEEE80211_IS_CHAN_ANYG(c) && !IEEE80211_IS_CHAN_HT(c));
1962 case IEEE80211_MODE_11A:
1963 return (IEEE80211_IS_CHAN_A(c) && !IEEE80211_IS_CHAN_HT(c));
1964 case IEEE80211_MODE_STURBO_A:
1965 return (IEEE80211_IS_CHAN_STURBO(c));
1966 case IEEE80211_MODE_11NA:
1967 return (IEEE80211_IS_CHAN_HTA(c));
1968 case IEEE80211_MODE_11NG:
1969 return (IEEE80211_IS_CHAN_HTG(c));
1970 }
1971 return 1;
1972
1973 }
1974
1975 /*
1976 * Common code to set the current channel. If the device
1977 * is up and running this may result in an immediate channel
1978 * change or a kick of the state machine.
1979 */
1980 static int
setcurchan(struct ieee80211vap * vap,struct ieee80211_channel * c)1981 setcurchan(struct ieee80211vap *vap, struct ieee80211_channel *c)
1982 {
1983 struct ieee80211com *ic = vap->iv_ic;
1984 int error;
1985
1986 if (c != IEEE80211_CHAN_ANYC) {
1987 if (IEEE80211_IS_CHAN_RADAR(c))
1988 return EBUSY; /* XXX better code? */
1989 if (vap->iv_opmode == IEEE80211_M_HOSTAP) {
1990 if (IEEE80211_IS_CHAN_NOHOSTAP(c))
1991 return EINVAL;
1992 if (!check_mode_consistency(c, vap->iv_des_mode))
1993 return EINVAL;
1994 } else if (vap->iv_opmode == IEEE80211_M_IBSS) {
1995 if (IEEE80211_IS_CHAN_NOADHOC(c))
1996 return EINVAL;
1997 }
1998 if ((vap->iv_state == IEEE80211_S_RUN || vap->iv_state == IEEE80211_S_SLEEP) &&
1999 vap->iv_bss->ni_chan == c)
2000 return 0; /* NB: nothing to do */
2001 }
2002 vap->iv_des_chan = c;
2003
2004 error = 0;
2005 if (vap->iv_opmode == IEEE80211_M_MONITOR &&
2006 vap->iv_des_chan != IEEE80211_CHAN_ANYC) {
2007 /*
2008 * Monitor mode can switch directly.
2009 */
2010 if (IFNET_IS_UP_RUNNING(vap->iv_ifp)) {
2011 /* XXX need state machine for other vap's to follow */
2012 ieee80211_setcurchan(ic, vap->iv_des_chan);
2013 vap->iv_bss->ni_chan = ic->ic_curchan;
2014 } else {
2015 ic->ic_curchan = vap->iv_des_chan;
2016 ic->ic_rt = ieee80211_get_ratetable(ic->ic_curchan);
2017 }
2018 } else {
2019 /*
2020 * Need to go through the state machine in case we
2021 * need to reassociate or the like. The state machine
2022 * will pickup the desired channel and avoid scanning.
2023 */
2024 if (IS_UP_AUTO(vap))
2025 ieee80211_new_state(vap, IEEE80211_S_SCAN, 0);
2026 else if (vap->iv_des_chan != IEEE80211_CHAN_ANYC) {
2027 /*
2028 * When not up+running and a real channel has
2029 * been specified fix the current channel so
2030 * there is immediate feedback; e.g. via ifconfig.
2031 */
2032 ic->ic_curchan = vap->iv_des_chan;
2033 ic->ic_rt = ieee80211_get_ratetable(ic->ic_curchan);
2034 }
2035 }
2036 return error;
2037 }
2038
2039 /*
2040 * Old api for setting the current channel; this is
2041 * deprecated because channel numbers are ambiguous.
2042 */
2043 static int
ieee80211_ioctl_setchannel(struct ieee80211vap * vap,const struct ieee80211req * ireq)2044 ieee80211_ioctl_setchannel(struct ieee80211vap *vap,
2045 const struct ieee80211req *ireq)
2046 {
2047 struct ieee80211com *ic = vap->iv_ic;
2048 struct ieee80211_channel *c;
2049
2050 /* XXX 0xffff overflows 16-bit signed */
2051 if (ireq->i_val == 0 ||
2052 ireq->i_val == (int16_t) IEEE80211_CHAN_ANY) {
2053 c = IEEE80211_CHAN_ANYC;
2054 } else {
2055 struct ieee80211_channel *c2;
2056
2057 c = findchannel(ic, ireq->i_val, vap->iv_des_mode);
2058 if (c == NULL) {
2059 c = findchannel(ic, ireq->i_val,
2060 IEEE80211_MODE_AUTO);
2061 if (c == NULL)
2062 return EINVAL;
2063 }
2064
2065 /*
2066 * Fine tune channel selection based on desired mode:
2067 * if 11b is requested, find the 11b version of any
2068 * 11g channel returned,
2069 * if static turbo, find the turbo version of any
2070 * 11a channel return,
2071 * if 11na is requested, find the ht version of any
2072 * 11a channel returned,
2073 * if 11ng is requested, find the ht version of any
2074 * 11g channel returned,
2075 * if 11ac is requested, find the 11ac version
2076 * of any 11a/11na channel returned,
2077 * (TBD) 11acg (2GHz VHT)
2078 * otherwise we should be ok with what we've got.
2079 */
2080 switch (vap->iv_des_mode) {
2081 case IEEE80211_MODE_11B:
2082 if (IEEE80211_IS_CHAN_ANYG(c)) {
2083 c2 = findchannel(ic, ireq->i_val,
2084 IEEE80211_MODE_11B);
2085 /* NB: should not happen, =>'s 11g w/o 11b */
2086 if (c2 != NULL)
2087 c = c2;
2088 }
2089 break;
2090 case IEEE80211_MODE_TURBO_A:
2091 if (IEEE80211_IS_CHAN_A(c)) {
2092 c2 = findchannel(ic, ireq->i_val,
2093 IEEE80211_MODE_TURBO_A);
2094 if (c2 != NULL)
2095 c = c2;
2096 }
2097 break;
2098 case IEEE80211_MODE_11NA:
2099 if (IEEE80211_IS_CHAN_A(c)) {
2100 c2 = findchannel(ic, ireq->i_val,
2101 IEEE80211_MODE_11NA);
2102 if (c2 != NULL)
2103 c = c2;
2104 }
2105 break;
2106 case IEEE80211_MODE_11NG:
2107 if (IEEE80211_IS_CHAN_ANYG(c)) {
2108 c2 = findchannel(ic, ireq->i_val,
2109 IEEE80211_MODE_11NG);
2110 if (c2 != NULL)
2111 c = c2;
2112 }
2113 break;
2114 case IEEE80211_MODE_VHT_2GHZ:
2115 printf("%s: TBD\n", __func__);
2116 break;
2117 case IEEE80211_MODE_VHT_5GHZ:
2118 if (IEEE80211_IS_CHAN_A(c)) {
2119 c2 = findchannel(ic, ireq->i_val,
2120 IEEE80211_MODE_VHT_5GHZ);
2121 if (c2 != NULL)
2122 c = c2;
2123 }
2124 break;
2125 default: /* NB: no static turboG */
2126 break;
2127 }
2128 }
2129 return setcurchan(vap, c);
2130 }
2131
2132 /*
2133 * New/current api for setting the current channel; a complete
2134 * channel description is provide so there is no ambiguity in
2135 * identifying the channel.
2136 */
2137 static int
ieee80211_ioctl_setcurchan(struct ieee80211vap * vap,const struct ieee80211req * ireq)2138 ieee80211_ioctl_setcurchan(struct ieee80211vap *vap,
2139 const struct ieee80211req *ireq)
2140 {
2141 struct ieee80211com *ic = vap->iv_ic;
2142 struct ieee80211_channel chan, *c;
2143 int error;
2144
2145 if (ireq->i_len != sizeof(chan))
2146 return EINVAL;
2147 error = copyin(ireq->i_data, &chan, sizeof(chan));
2148 if (error != 0)
2149 return error;
2150
2151 /* XXX 0xffff overflows 16-bit signed */
2152 if (chan.ic_freq == 0 || chan.ic_freq == IEEE80211_CHAN_ANY) {
2153 c = IEEE80211_CHAN_ANYC;
2154 } else {
2155 c = ieee80211_find_channel(ic, chan.ic_freq, chan.ic_flags);
2156 if (c == NULL)
2157 return EINVAL;
2158 }
2159 return setcurchan(vap, c);
2160 }
2161
2162 static int
ieee80211_ioctl_setregdomain(struct ieee80211vap * vap,const struct ieee80211req * ireq)2163 ieee80211_ioctl_setregdomain(struct ieee80211vap *vap,
2164 const struct ieee80211req *ireq)
2165 {
2166 struct ieee80211_regdomain_req *reg;
2167 int nchans, error;
2168
2169 nchans = 1 + ((ireq->i_len - sizeof(struct ieee80211_regdomain_req)) /
2170 sizeof(struct ieee80211_channel));
2171 if (!(1 <= nchans && nchans <= IEEE80211_CHAN_MAX)) {
2172 IEEE80211_DPRINTF(vap, IEEE80211_MSG_IOCTL,
2173 "%s: bad # chans, i_len %d nchans %d\n", __func__,
2174 ireq->i_len, nchans);
2175 return EINVAL;
2176 }
2177 reg = (struct ieee80211_regdomain_req *)
2178 IEEE80211_MALLOC(IEEE80211_REGDOMAIN_SIZE(nchans), M_TEMP,
2179 IEEE80211_M_NOWAIT | IEEE80211_M_ZERO);
2180 if (reg == NULL) {
2181 IEEE80211_DPRINTF(vap, IEEE80211_MSG_IOCTL,
2182 "%s: no memory, nchans %d\n", __func__, nchans);
2183 return ENOMEM;
2184 }
2185 error = copyin(ireq->i_data, reg, IEEE80211_REGDOMAIN_SIZE(nchans));
2186 if (error == 0) {
2187 /* NB: validate inline channel count against storage size */
2188 if (reg->chaninfo.ic_nchans != nchans) {
2189 IEEE80211_DPRINTF(vap, IEEE80211_MSG_IOCTL,
2190 "%s: chan cnt mismatch, %d != %d\n", __func__,
2191 reg->chaninfo.ic_nchans, nchans);
2192 error = EINVAL;
2193 } else
2194 error = ieee80211_setregdomain(vap, reg);
2195 }
2196 IEEE80211_FREE(reg, M_TEMP);
2197
2198 return (error == 0 ? ENETRESET : error);
2199 }
2200
2201 static int
checkrate(const struct ieee80211_rateset * rs,int rate)2202 checkrate(const struct ieee80211_rateset *rs, int rate)
2203 {
2204 int i;
2205
2206 if (rate == IEEE80211_FIXED_RATE_NONE)
2207 return 1;
2208 for (i = 0; i < rs->rs_nrates; i++)
2209 if ((rs->rs_rates[i] & IEEE80211_RATE_VAL) == rate)
2210 return 1;
2211 return 0;
2212 }
2213
2214 static int
checkmcs(const struct ieee80211_htrateset * rs,int mcs)2215 checkmcs(const struct ieee80211_htrateset *rs, int mcs)
2216 {
2217 int rate_val = IEEE80211_RV(mcs);
2218 int i;
2219
2220 if (mcs == IEEE80211_FIXED_RATE_NONE)
2221 return 1;
2222 if ((mcs & IEEE80211_RATE_MCS) == 0) /* MCS always have 0x80 set */
2223 return 0;
2224 for (i = 0; i < rs->rs_nrates; i++)
2225 if (IEEE80211_RV(rs->rs_rates[i]) == rate_val)
2226 return 1;
2227 return 0;
2228 }
2229
2230 static int
ieee80211_ioctl_setroam(struct ieee80211vap * vap,const struct ieee80211req * ireq)2231 ieee80211_ioctl_setroam(struct ieee80211vap *vap,
2232 const struct ieee80211req *ireq)
2233 {
2234 struct ieee80211com *ic = vap->iv_ic;
2235 struct ieee80211_roamparams_req *parms;
2236 struct ieee80211_roamparam *src, *dst;
2237 const struct ieee80211_htrateset *rs_ht;
2238 const struct ieee80211_rateset *rs;
2239 int changed, error, mode, is11n, nmodes;
2240
2241 if (ireq->i_len != sizeof(vap->iv_roamparms))
2242 return EINVAL;
2243
2244 parms = IEEE80211_MALLOC(sizeof(*parms), M_TEMP,
2245 IEEE80211_M_NOWAIT | IEEE80211_M_ZERO);
2246 if (parms == NULL)
2247 return ENOMEM;
2248
2249 error = copyin(ireq->i_data, parms, ireq->i_len);
2250 if (error != 0)
2251 goto fail;
2252
2253 changed = 0;
2254 nmodes = IEEE80211_MODE_MAX;
2255
2256 /* validate parameters and check if anything changed */
2257 for (mode = IEEE80211_MODE_11A; mode < nmodes; mode++) {
2258 if (isclr(ic->ic_modecaps, mode))
2259 continue;
2260 src = &parms->params[mode];
2261 dst = &vap->iv_roamparms[mode];
2262 rs = &ic->ic_sup_rates[mode]; /* NB: 11n maps to legacy */
2263 rs_ht = &ic->ic_sup_htrates;
2264 is11n = (mode == IEEE80211_MODE_11NA ||
2265 mode == IEEE80211_MODE_11NG);
2266 /* XXX TODO: 11ac */
2267 if (src->rate != dst->rate) {
2268 if (!checkrate(rs, src->rate) &&
2269 (!is11n || !checkmcs(rs_ht, src->rate))) {
2270 error = EINVAL;
2271 goto fail;
2272 }
2273 changed++;
2274 }
2275 if (src->rssi != dst->rssi)
2276 changed++;
2277 }
2278 if (changed) {
2279 /*
2280 * Copy new parameters in place and notify the
2281 * driver so it can push state to the device.
2282 */
2283 /* XXX locking? */
2284 for (mode = IEEE80211_MODE_11A; mode < nmodes; mode++) {
2285 if (isset(ic->ic_modecaps, mode))
2286 vap->iv_roamparms[mode] = parms->params[mode];
2287 }
2288
2289 if (vap->iv_roaming == IEEE80211_ROAMING_DEVICE)
2290 error = ERESTART;
2291 }
2292
2293 fail: IEEE80211_FREE(parms, M_TEMP);
2294 return error;
2295 }
2296
2297 static int
ieee80211_ioctl_settxparams(struct ieee80211vap * vap,const struct ieee80211req * ireq)2298 ieee80211_ioctl_settxparams(struct ieee80211vap *vap,
2299 const struct ieee80211req *ireq)
2300 {
2301 struct ieee80211com *ic = vap->iv_ic;
2302 struct ieee80211_txparams_req parms; /* XXX stack use? */
2303 struct ieee80211_txparam *src, *dst;
2304 const struct ieee80211_htrateset *rs_ht;
2305 const struct ieee80211_rateset *rs;
2306 int error, mode, changed, is11n, nmodes;
2307
2308 /* NB: accept short requests for backwards compat */
2309 if (ireq->i_len > sizeof(parms))
2310 return EINVAL;
2311 error = copyin(ireq->i_data, &parms, ireq->i_len);
2312 if (error != 0)
2313 return error;
2314 nmodes = ireq->i_len / sizeof(struct ieee80211_txparam);
2315 changed = 0;
2316 /* validate parameters and check if anything changed */
2317 for (mode = IEEE80211_MODE_11A; mode < nmodes; mode++) {
2318 if (isclr(ic->ic_modecaps, mode))
2319 continue;
2320 src = &parms.params[mode];
2321 dst = &vap->iv_txparms[mode];
2322 rs = &ic->ic_sup_rates[mode]; /* NB: 11n maps to legacy */
2323 rs_ht = &ic->ic_sup_htrates;
2324 is11n = (mode == IEEE80211_MODE_11NA ||
2325 mode == IEEE80211_MODE_11NG);
2326 if (src->ucastrate != dst->ucastrate) {
2327 if (!checkrate(rs, src->ucastrate) &&
2328 (!is11n || !checkmcs(rs_ht, src->ucastrate)))
2329 return EINVAL;
2330 changed++;
2331 }
2332 if (src->mcastrate != dst->mcastrate) {
2333 if (!checkrate(rs, src->mcastrate) &&
2334 (!is11n || !checkmcs(rs_ht, src->mcastrate)))
2335 return EINVAL;
2336 changed++;
2337 }
2338 if (src->mgmtrate != dst->mgmtrate) {
2339 if (!checkrate(rs, src->mgmtrate) &&
2340 (!is11n || !checkmcs(rs_ht, src->mgmtrate)))
2341 return EINVAL;
2342 changed++;
2343 }
2344 if (src->maxretry != dst->maxretry) /* NB: no bounds */
2345 changed++;
2346 }
2347 if (changed) {
2348 /*
2349 * Copy new parameters in place and notify the
2350 * driver so it can push state to the device.
2351 */
2352 for (mode = IEEE80211_MODE_11A; mode < nmodes; mode++) {
2353 if (isset(ic->ic_modecaps, mode))
2354 vap->iv_txparms[mode] = parms.params[mode];
2355 }
2356 /* XXX could be more intelligent,
2357 e.g. don't reset if setting not being used */
2358 return ENETRESET;
2359 }
2360 return 0;
2361 }
2362
2363 /*
2364 * Application Information Element support.
2365 */
2366 static int
setappie(struct ieee80211_appie ** aie,const struct ieee80211req * ireq)2367 setappie(struct ieee80211_appie **aie, const struct ieee80211req *ireq)
2368 {
2369 struct ieee80211_appie *app = *aie;
2370 struct ieee80211_appie *napp;
2371 int error;
2372
2373 if (ireq->i_len == 0) { /* delete any existing ie */
2374 if (app != NULL) {
2375 *aie = NULL; /* XXX racey */
2376 IEEE80211_FREE(app, M_80211_NODE_IE);
2377 }
2378 return 0;
2379 }
2380 if (!(2 <= ireq->i_len && ireq->i_len <= IEEE80211_MAX_APPIE))
2381 return EINVAL;
2382 /*
2383 * Allocate a new appie structure and copy in the user data.
2384 * When done swap in the new structure. Note that we do not
2385 * guard against users holding a ref to the old structure;
2386 * this must be handled outside this code.
2387 *
2388 * XXX bad bad bad
2389 */
2390 napp = (struct ieee80211_appie *) IEEE80211_MALLOC(
2391 sizeof(struct ieee80211_appie) + ireq->i_len, M_80211_NODE_IE,
2392 IEEE80211_M_NOWAIT);
2393 if (napp == NULL)
2394 return ENOMEM;
2395 /* XXX holding ic lock */
2396 error = copyin(ireq->i_data, napp->ie_data, ireq->i_len);
2397 if (error) {
2398 IEEE80211_FREE(napp, M_80211_NODE_IE);
2399 return error;
2400 }
2401 napp->ie_len = ireq->i_len;
2402 *aie = napp;
2403 if (app != NULL)
2404 IEEE80211_FREE(app, M_80211_NODE_IE);
2405 return 0;
2406 }
2407
2408 static void
setwparsnie(struct ieee80211vap * vap,uint8_t * ie,int space)2409 setwparsnie(struct ieee80211vap *vap, uint8_t *ie, int space)
2410 {
2411 /* validate data is present as best we can */
2412 if (space == 0 || 2+ie[1] > space)
2413 return;
2414 if (ie[0] == IEEE80211_ELEMID_VENDOR)
2415 vap->iv_wpa_ie = ie;
2416 else if (ie[0] == IEEE80211_ELEMID_RSN)
2417 vap->iv_rsn_ie = ie;
2418 }
2419
2420 static int
ieee80211_ioctl_setappie_locked(struct ieee80211vap * vap,const struct ieee80211req * ireq,int fc0)2421 ieee80211_ioctl_setappie_locked(struct ieee80211vap *vap,
2422 const struct ieee80211req *ireq, int fc0)
2423 {
2424 int error;
2425
2426 IEEE80211_LOCK_ASSERT(vap->iv_ic);
2427
2428 switch (fc0 & IEEE80211_FC0_SUBTYPE_MASK) {
2429 case IEEE80211_FC0_SUBTYPE_BEACON:
2430 if (vap->iv_opmode != IEEE80211_M_HOSTAP &&
2431 vap->iv_opmode != IEEE80211_M_IBSS) {
2432 error = EINVAL;
2433 break;
2434 }
2435 error = setappie(&vap->iv_appie_beacon, ireq);
2436 if (error == 0)
2437 ieee80211_beacon_notify(vap, IEEE80211_BEACON_APPIE);
2438 break;
2439 case IEEE80211_FC0_SUBTYPE_PROBE_RESP:
2440 error = setappie(&vap->iv_appie_proberesp, ireq);
2441 break;
2442 case IEEE80211_FC0_SUBTYPE_ASSOC_RESP:
2443 if (vap->iv_opmode == IEEE80211_M_HOSTAP)
2444 error = setappie(&vap->iv_appie_assocresp, ireq);
2445 else
2446 error = EINVAL;
2447 break;
2448 case IEEE80211_FC0_SUBTYPE_PROBE_REQ:
2449 error = setappie(&vap->iv_appie_probereq, ireq);
2450 break;
2451 case IEEE80211_FC0_SUBTYPE_ASSOC_REQ:
2452 if (vap->iv_opmode == IEEE80211_M_STA)
2453 error = setappie(&vap->iv_appie_assocreq, ireq);
2454 else
2455 error = EINVAL;
2456 break;
2457 case (IEEE80211_APPIE_WPA & IEEE80211_FC0_SUBTYPE_MASK):
2458 error = setappie(&vap->iv_appie_wpa, ireq);
2459 if (error == 0) {
2460 /*
2461 * Must split single blob of data into separate
2462 * WPA and RSN ie's because they go in different
2463 * locations in the mgt frames.
2464 * XXX use IEEE80211_IOC_WPA2 so user code does split
2465 */
2466 vap->iv_wpa_ie = NULL;
2467 vap->iv_rsn_ie = NULL;
2468 if (vap->iv_appie_wpa != NULL) {
2469 struct ieee80211_appie *appie =
2470 vap->iv_appie_wpa;
2471 uint8_t *data = appie->ie_data;
2472
2473 /* XXX ie length validate is painful, cheat */
2474 setwparsnie(vap, data, appie->ie_len);
2475 setwparsnie(vap, data + 2 + data[1],
2476 appie->ie_len - (2 + data[1]));
2477 }
2478 if (vap->iv_opmode == IEEE80211_M_HOSTAP ||
2479 vap->iv_opmode == IEEE80211_M_IBSS) {
2480 /*
2481 * Must rebuild beacon frame as the update
2482 * mechanism doesn't handle WPA/RSN ie's.
2483 * Could extend it but it doesn't normally
2484 * change; this is just to deal with hostapd
2485 * plumbing the ie after the interface is up.
2486 */
2487 error = ENETRESET;
2488 }
2489 }
2490 break;
2491 default:
2492 error = EINVAL;
2493 break;
2494 }
2495 return error;
2496 }
2497
2498 static int
ieee80211_ioctl_setappie(struct ieee80211vap * vap,const struct ieee80211req * ireq)2499 ieee80211_ioctl_setappie(struct ieee80211vap *vap,
2500 const struct ieee80211req *ireq)
2501 {
2502 struct ieee80211com *ic = vap->iv_ic;
2503 int error;
2504 uint8_t fc0;
2505
2506 fc0 = ireq->i_val & 0xff;
2507 if ((fc0 & IEEE80211_FC0_TYPE_MASK) != IEEE80211_FC0_TYPE_MGT)
2508 return EINVAL;
2509 /* NB: could check iv_opmode and reject but hardly worth the effort */
2510 IEEE80211_LOCK(ic);
2511 error = ieee80211_ioctl_setappie_locked(vap, ireq, fc0);
2512 IEEE80211_UNLOCK(ic);
2513 return error;
2514 }
2515
2516 static int
ieee80211_ioctl_chanswitch(struct ieee80211vap * vap,struct ieee80211req * ireq)2517 ieee80211_ioctl_chanswitch(struct ieee80211vap *vap, struct ieee80211req *ireq)
2518 {
2519 struct ieee80211com *ic = vap->iv_ic;
2520 struct ieee80211_chanswitch_req csr;
2521 struct ieee80211_channel *c;
2522 int error;
2523
2524 if (ireq->i_len != sizeof(csr))
2525 return EINVAL;
2526 error = copyin(ireq->i_data, &csr, sizeof(csr));
2527 if (error != 0)
2528 return error;
2529 /* XXX adhoc mode not supported */
2530 if (vap->iv_opmode != IEEE80211_M_HOSTAP ||
2531 (vap->iv_flags & IEEE80211_F_DOTH) == 0)
2532 return EOPNOTSUPP;
2533 c = ieee80211_find_channel(ic,
2534 csr.csa_chan.ic_freq, csr.csa_chan.ic_flags);
2535 if (c == NULL)
2536 return ENOENT;
2537 IEEE80211_LOCK(ic);
2538 if ((ic->ic_flags & IEEE80211_F_CSAPENDING) == 0)
2539 ieee80211_csa_startswitch(ic, c, csr.csa_mode, csr.csa_count);
2540 else if (csr.csa_count == 0)
2541 ieee80211_csa_cancelswitch(ic);
2542 else
2543 error = EBUSY;
2544 IEEE80211_UNLOCK(ic);
2545 return error;
2546 }
2547
2548 static int
ieee80211_scanreq(struct ieee80211vap * vap,struct ieee80211_scan_req * sr)2549 ieee80211_scanreq(struct ieee80211vap *vap, struct ieee80211_scan_req *sr)
2550 {
2551 #define IEEE80211_IOC_SCAN_FLAGS \
2552 (IEEE80211_IOC_SCAN_NOPICK | IEEE80211_IOC_SCAN_ACTIVE | \
2553 IEEE80211_IOC_SCAN_PICK1ST | IEEE80211_IOC_SCAN_BGSCAN | \
2554 IEEE80211_IOC_SCAN_ONCE | IEEE80211_IOC_SCAN_NOBCAST | \
2555 IEEE80211_IOC_SCAN_NOJOIN | IEEE80211_IOC_SCAN_FLUSH | \
2556 IEEE80211_IOC_SCAN_CHECK)
2557 struct ieee80211com *ic = vap->iv_ic;
2558 int error, i;
2559
2560 /* convert duration */
2561 if (sr->sr_duration == IEEE80211_IOC_SCAN_FOREVER)
2562 sr->sr_duration = IEEE80211_SCAN_FOREVER;
2563 else {
2564 if (sr->sr_duration < IEEE80211_IOC_SCAN_DURATION_MIN ||
2565 sr->sr_duration > IEEE80211_IOC_SCAN_DURATION_MAX)
2566 return EINVAL;
2567 sr->sr_duration = msecs_to_ticks(sr->sr_duration);
2568 }
2569 /* convert min/max channel dwell */
2570 if (sr->sr_mindwell != 0)
2571 sr->sr_mindwell = msecs_to_ticks(sr->sr_mindwell);
2572 if (sr->sr_maxdwell != 0)
2573 sr->sr_maxdwell = msecs_to_ticks(sr->sr_maxdwell);
2574 /* NB: silently reduce ssid count to what is supported */
2575 if (sr->sr_nssid > IEEE80211_SCAN_MAX_SSID)
2576 sr->sr_nssid = IEEE80211_SCAN_MAX_SSID;
2577 for (i = 0; i < sr->sr_nssid; i++)
2578 if (sr->sr_ssid[i].len > IEEE80211_NWID_LEN)
2579 return EINVAL;
2580 /* cleanse flags just in case, could reject if invalid flags */
2581 sr->sr_flags &= IEEE80211_IOC_SCAN_FLAGS;
2582 /*
2583 * Add an implicit NOPICK if the vap is not marked UP. This
2584 * allows applications to scan without joining a bss (or picking
2585 * a channel and setting up a bss) and without forcing manual
2586 * roaming mode--you just need to mark the parent device UP.
2587 */
2588 if ((vap->iv_ifp->if_flags & IFF_UP) == 0)
2589 sr->sr_flags |= IEEE80211_IOC_SCAN_NOPICK;
2590
2591 IEEE80211_DPRINTF(vap, IEEE80211_MSG_SCAN,
2592 "%s: vap %p iv_state %#x (%s) flags 0x%x%s "
2593 "duration 0x%x mindwell %u maxdwell %u nssid %d\n",
2594 __func__, vap, vap->iv_state, ieee80211_state_name[vap->iv_state],
2595 sr->sr_flags,
2596 (vap->iv_ifp->if_flags & IFF_UP) == 0 ? " (!IFF_UP)" : "",
2597 sr->sr_duration, sr->sr_mindwell, sr->sr_maxdwell, sr->sr_nssid);
2598 /*
2599 * If we are in INIT state then the driver has never had a chance
2600 * to setup hardware state to do a scan; we must use the state
2601 * machine to get us up to the SCAN state but once we reach SCAN
2602 * state we then want to use the supplied params. Stash the
2603 * parameters in the vap and mark IEEE80211_FEXT_SCANREQ; the
2604 * state machines will recognize this and use the stashed params
2605 * to issue the scan request.
2606 *
2607 * Otherwise just invoke the scan machinery directly.
2608 */
2609 IEEE80211_LOCK(ic);
2610 if (ic->ic_nrunning == 0) {
2611 IEEE80211_UNLOCK(ic);
2612 return ENXIO;
2613 }
2614
2615 if (vap->iv_state == IEEE80211_S_INIT) {
2616 /* NB: clobbers previous settings */
2617 vap->iv_scanreq_flags = sr->sr_flags;
2618 vap->iv_scanreq_duration = sr->sr_duration;
2619 vap->iv_scanreq_nssid = sr->sr_nssid;
2620 for (i = 0; i < sr->sr_nssid; i++) {
2621 vap->iv_scanreq_ssid[i].len = sr->sr_ssid[i].len;
2622 memcpy(vap->iv_scanreq_ssid[i].ssid,
2623 sr->sr_ssid[i].ssid, sr->sr_ssid[i].len);
2624 }
2625 vap->iv_flags_ext |= IEEE80211_FEXT_SCANREQ;
2626 IEEE80211_UNLOCK(ic);
2627 ieee80211_new_state(vap, IEEE80211_S_SCAN, 0);
2628 } else {
2629 vap->iv_flags_ext &= ~IEEE80211_FEXT_SCANREQ;
2630 IEEE80211_UNLOCK(ic);
2631 if (sr->sr_flags & IEEE80211_IOC_SCAN_CHECK) {
2632 error = ieee80211_check_scan(vap, sr->sr_flags,
2633 sr->sr_duration, sr->sr_mindwell, sr->sr_maxdwell,
2634 sr->sr_nssid,
2635 /* NB: cheat, we assume structures are compatible */
2636 (const struct ieee80211_scan_ssid *) &sr->sr_ssid[0]);
2637 } else {
2638 error = ieee80211_start_scan(vap, sr->sr_flags,
2639 sr->sr_duration, sr->sr_mindwell, sr->sr_maxdwell,
2640 sr->sr_nssid,
2641 /* NB: cheat, we assume structures are compatible */
2642 (const struct ieee80211_scan_ssid *) &sr->sr_ssid[0]);
2643 }
2644 if (error == 0)
2645 return EINPROGRESS;
2646 }
2647 return 0;
2648 #undef IEEE80211_IOC_SCAN_FLAGS
2649 }
2650
2651 static int
ieee80211_ioctl_scanreq(struct ieee80211vap * vap,struct ieee80211req * ireq)2652 ieee80211_ioctl_scanreq(struct ieee80211vap *vap, struct ieee80211req *ireq)
2653 {
2654 struct ieee80211_scan_req *sr;
2655 int error;
2656
2657 if (ireq->i_len != sizeof(*sr))
2658 return EINVAL;
2659 sr = IEEE80211_MALLOC(sizeof(*sr), M_TEMP,
2660 IEEE80211_M_NOWAIT | IEEE80211_M_ZERO);
2661 if (sr == NULL)
2662 return ENOMEM;
2663 error = copyin(ireq->i_data, sr, sizeof(*sr));
2664 if (error != 0)
2665 goto bad;
2666 error = ieee80211_scanreq(vap, sr);
2667 bad:
2668 IEEE80211_FREE(sr, M_TEMP);
2669 return error;
2670 }
2671
2672 static int
ieee80211_ioctl_setstavlan(struct ieee80211vap * vap,struct ieee80211req * ireq)2673 ieee80211_ioctl_setstavlan(struct ieee80211vap *vap, struct ieee80211req *ireq)
2674 {
2675 struct ieee80211_node *ni;
2676 struct ieee80211req_sta_vlan vlan;
2677 int error;
2678
2679 if (ireq->i_len != sizeof(vlan))
2680 return EINVAL;
2681 error = copyin(ireq->i_data, &vlan, sizeof(vlan));
2682 if (error != 0)
2683 return error;
2684 if (!IEEE80211_ADDR_EQ(vlan.sv_macaddr, zerobssid)) {
2685 ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap,
2686 vlan.sv_macaddr);
2687 if (ni == NULL)
2688 return ENOENT;
2689 } else
2690 ni = ieee80211_ref_node(vap->iv_bss);
2691 ni->ni_vlan = vlan.sv_vlan;
2692 ieee80211_free_node(ni);
2693 return error;
2694 }
2695
2696 static int
isvap11g(const struct ieee80211vap * vap)2697 isvap11g(const struct ieee80211vap *vap)
2698 {
2699 const struct ieee80211_node *bss = vap->iv_bss;
2700 return bss->ni_chan != IEEE80211_CHAN_ANYC &&
2701 IEEE80211_IS_CHAN_ANYG(bss->ni_chan);
2702 }
2703
2704 static int
isvapht(const struct ieee80211vap * vap)2705 isvapht(const struct ieee80211vap *vap)
2706 {
2707 const struct ieee80211_node *bss = vap->iv_bss;
2708 return bss->ni_chan != IEEE80211_CHAN_ANYC &&
2709 IEEE80211_IS_CHAN_HT(bss->ni_chan);
2710 }
2711
2712 /*
2713 * Dummy ioctl set handler so the linker set is defined.
2714 */
2715 static int
dummy_ioctl_set(struct ieee80211vap * vap,struct ieee80211req * ireq)2716 dummy_ioctl_set(struct ieee80211vap *vap, struct ieee80211req *ireq)
2717 {
2718 return ENOSYS;
2719 }
2720 IEEE80211_IOCTL_SET(dummy, dummy_ioctl_set);
2721
2722 static int
ieee80211_ioctl_setdefault(struct ieee80211vap * vap,struct ieee80211req * ireq)2723 ieee80211_ioctl_setdefault(struct ieee80211vap *vap, struct ieee80211req *ireq)
2724 {
2725 ieee80211_ioctl_setfunc * const *set;
2726 int error;
2727
2728 SET_FOREACH(set, ieee80211_ioctl_setset) {
2729 error = (*set)(vap, ireq);
2730 if (error != ENOSYS)
2731 return error;
2732 }
2733 return EINVAL;
2734 }
2735
2736 static int
ieee80211_ioctl_set80211(struct ieee80211vap * vap,u_long cmd,struct ieee80211req * ireq)2737 ieee80211_ioctl_set80211(struct ieee80211vap *vap, u_long cmd, struct ieee80211req *ireq)
2738 {
2739 struct ieee80211com *ic = vap->iv_ic;
2740 int error;
2741 const struct ieee80211_authenticator *auth;
2742 uint8_t tmpkey[IEEE80211_KEYBUF_SIZE];
2743 char tmpssid[IEEE80211_NWID_LEN];
2744 uint8_t tmpbssid[IEEE80211_ADDR_LEN];
2745 struct ieee80211_key *k;
2746 u_int kid;
2747 uint32_t flags;
2748
2749 error = 0;
2750 switch (ireq->i_type) {
2751 case IEEE80211_IOC_SSID:
2752 if (ireq->i_val != 0 ||
2753 ireq->i_len > IEEE80211_NWID_LEN)
2754 return EINVAL;
2755 error = copyin(ireq->i_data, tmpssid, ireq->i_len);
2756 if (error)
2757 break;
2758 memset(vap->iv_des_ssid[0].ssid, 0, IEEE80211_NWID_LEN);
2759 vap->iv_des_ssid[0].len = ireq->i_len;
2760 memcpy(vap->iv_des_ssid[0].ssid, tmpssid, ireq->i_len);
2761 vap->iv_des_nssid = (ireq->i_len > 0);
2762 error = ENETRESET;
2763 break;
2764 case IEEE80211_IOC_WEP:
2765 switch (ireq->i_val) {
2766 case IEEE80211_WEP_OFF:
2767 vap->iv_flags &= ~IEEE80211_F_PRIVACY;
2768 vap->iv_flags &= ~IEEE80211_F_DROPUNENC;
2769 break;
2770 case IEEE80211_WEP_ON:
2771 vap->iv_flags |= IEEE80211_F_PRIVACY;
2772 vap->iv_flags |= IEEE80211_F_DROPUNENC;
2773 break;
2774 case IEEE80211_WEP_MIXED:
2775 vap->iv_flags |= IEEE80211_F_PRIVACY;
2776 vap->iv_flags &= ~IEEE80211_F_DROPUNENC;
2777 break;
2778 }
2779 error = ENETRESET;
2780 break;
2781 case IEEE80211_IOC_WEPKEY:
2782 kid = (u_int) ireq->i_val;
2783 if (kid >= IEEE80211_WEP_NKID)
2784 return EINVAL;
2785 k = &vap->iv_nw_keys[kid];
2786 if (ireq->i_len == 0) {
2787 /* zero-len =>'s delete any existing key */
2788 (void) ieee80211_crypto_delkey(vap, k);
2789 break;
2790 }
2791 if (ireq->i_len > sizeof(tmpkey))
2792 return EINVAL;
2793 memset(tmpkey, 0, sizeof(tmpkey));
2794 error = copyin(ireq->i_data, tmpkey, ireq->i_len);
2795 if (error)
2796 break;
2797 ieee80211_key_update_begin(vap);
2798 k->wk_keyix = kid; /* NB: force fixed key id */
2799 if (ieee80211_crypto_newkey(vap, IEEE80211_CIPHER_WEP,
2800 IEEE80211_KEY_XMIT | IEEE80211_KEY_RECV, k)) {
2801 k->wk_keylen = ireq->i_len;
2802 memcpy(k->wk_key, tmpkey, sizeof(tmpkey));
2803 IEEE80211_ADDR_COPY(k->wk_macaddr, vap->iv_myaddr);
2804 if (!ieee80211_crypto_setkey(vap, k))
2805 error = EINVAL;
2806 } else
2807 error = EINVAL;
2808 ieee80211_key_update_end(vap);
2809 break;
2810 case IEEE80211_IOC_WEPTXKEY:
2811 kid = (u_int) ireq->i_val;
2812 if (kid >= IEEE80211_WEP_NKID &&
2813 (uint16_t) kid != IEEE80211_KEYIX_NONE)
2814 return EINVAL;
2815 /*
2816 * Firmware devices may need to be told about an explicit
2817 * key index here, versus just inferring it from the
2818 * key set / change. Since we may also need to pause
2819 * things like transmit before the key is updated,
2820 * give the driver a chance to flush things by tying
2821 * into key update begin/end.
2822 */
2823 ieee80211_key_update_begin(vap);
2824 ieee80211_crypto_set_deftxkey(vap, kid);
2825 ieee80211_key_update_end(vap);
2826 break;
2827 case IEEE80211_IOC_AUTHMODE:
2828 switch (ireq->i_val) {
2829 case IEEE80211_AUTH_WPA:
2830 case IEEE80211_AUTH_8021X: /* 802.1x */
2831 case IEEE80211_AUTH_OPEN: /* open */
2832 case IEEE80211_AUTH_SHARED: /* shared-key */
2833 case IEEE80211_AUTH_AUTO: /* auto */
2834 auth = ieee80211_authenticator_get(ireq->i_val);
2835 if (auth == NULL)
2836 return EINVAL;
2837 break;
2838 default:
2839 return EINVAL;
2840 }
2841 switch (ireq->i_val) {
2842 case IEEE80211_AUTH_WPA: /* WPA w/ 802.1x */
2843 vap->iv_flags |= IEEE80211_F_PRIVACY;
2844 ireq->i_val = IEEE80211_AUTH_8021X;
2845 break;
2846 case IEEE80211_AUTH_OPEN: /* open */
2847 vap->iv_flags &= ~(IEEE80211_F_WPA|IEEE80211_F_PRIVACY);
2848 break;
2849 case IEEE80211_AUTH_SHARED: /* shared-key */
2850 case IEEE80211_AUTH_8021X: /* 802.1x */
2851 vap->iv_flags &= ~IEEE80211_F_WPA;
2852 /* both require a key so mark the PRIVACY capability */
2853 vap->iv_flags |= IEEE80211_F_PRIVACY;
2854 break;
2855 case IEEE80211_AUTH_AUTO: /* auto */
2856 vap->iv_flags &= ~IEEE80211_F_WPA;
2857 /* XXX PRIVACY handling? */
2858 /* XXX what's the right way to do this? */
2859 break;
2860 }
2861 /* NB: authenticator attach/detach happens on state change */
2862 vap->iv_bss->ni_authmode = ireq->i_val;
2863 /* XXX mixed/mode/usage? */
2864 vap->iv_auth = auth;
2865 error = ENETRESET;
2866 break;
2867 case IEEE80211_IOC_CHANNEL:
2868 error = ieee80211_ioctl_setchannel(vap, ireq);
2869 break;
2870 case IEEE80211_IOC_POWERSAVE:
2871 switch (ireq->i_val) {
2872 case IEEE80211_POWERSAVE_OFF:
2873 if (vap->iv_flags & IEEE80211_F_PMGTON) {
2874 ieee80211_syncflag(vap, -IEEE80211_F_PMGTON);
2875 error = ERESTART;
2876 }
2877 break;
2878 case IEEE80211_POWERSAVE_ON:
2879 if ((vap->iv_caps & IEEE80211_C_PMGT) == 0)
2880 error = EOPNOTSUPP;
2881 else if ((vap->iv_flags & IEEE80211_F_PMGTON) == 0) {
2882 ieee80211_syncflag(vap, IEEE80211_F_PMGTON);
2883 error = ERESTART;
2884 }
2885 break;
2886 default:
2887 error = EINVAL;
2888 break;
2889 }
2890 break;
2891 case IEEE80211_IOC_POWERSAVESLEEP:
2892 if (ireq->i_val < 0)
2893 return EINVAL;
2894 ic->ic_lintval = ireq->i_val;
2895 error = ERESTART;
2896 break;
2897 case IEEE80211_IOC_RTSTHRESHOLD:
2898 if (!(IEEE80211_RTS_MIN <= ireq->i_val &&
2899 ireq->i_val <= IEEE80211_RTS_MAX))
2900 return EINVAL;
2901 vap->iv_rtsthreshold = ireq->i_val;
2902 error = ERESTART;
2903 break;
2904 case IEEE80211_IOC_PROTMODE:
2905 if (ireq->i_val > IEEE80211_PROT_RTSCTS)
2906 return EINVAL;
2907 vap->iv_protmode = (enum ieee80211_protmode)ireq->i_val;
2908 /* NB: if not operating in 11g this can wait */
2909 if (ic->ic_bsschan != IEEE80211_CHAN_ANYC &&
2910 IEEE80211_IS_CHAN_ANYG(ic->ic_bsschan))
2911 error = ERESTART;
2912 /* driver callback for protection mode update */
2913 ieee80211_vap_update_erp_protmode(vap);
2914 break;
2915 case IEEE80211_IOC_TXPOWER:
2916 if ((ic->ic_caps & IEEE80211_C_TXPMGT) == 0)
2917 return EOPNOTSUPP;
2918 if (!(IEEE80211_TXPOWER_MIN <= ireq->i_val &&
2919 ireq->i_val <= IEEE80211_TXPOWER_MAX))
2920 return EINVAL;
2921 ic->ic_txpowlimit = ireq->i_val;
2922 error = ERESTART;
2923 break;
2924 case IEEE80211_IOC_ROAMING:
2925 if (!(IEEE80211_ROAMING_DEVICE <= ireq->i_val &&
2926 ireq->i_val <= IEEE80211_ROAMING_MANUAL))
2927 return EINVAL;
2928 vap->iv_roaming = (enum ieee80211_roamingmode)ireq->i_val;
2929 /* XXXX reset? */
2930 break;
2931 case IEEE80211_IOC_PRIVACY:
2932 if (ireq->i_val) {
2933 /* XXX check for key state? */
2934 vap->iv_flags |= IEEE80211_F_PRIVACY;
2935 } else
2936 vap->iv_flags &= ~IEEE80211_F_PRIVACY;
2937 /* XXX ERESTART? */
2938 break;
2939 case IEEE80211_IOC_DROPUNENCRYPTED:
2940 if (ireq->i_val)
2941 vap->iv_flags |= IEEE80211_F_DROPUNENC;
2942 else
2943 vap->iv_flags &= ~IEEE80211_F_DROPUNENC;
2944 /* XXX ERESTART? */
2945 break;
2946 case IEEE80211_IOC_WPAKEY:
2947 error = ieee80211_ioctl_setkey(vap, ireq);
2948 break;
2949 case IEEE80211_IOC_DELKEY:
2950 error = ieee80211_ioctl_delkey(vap, ireq);
2951 break;
2952 case IEEE80211_IOC_MLME:
2953 error = ieee80211_ioctl_setmlme(vap, ireq);
2954 break;
2955 case IEEE80211_IOC_COUNTERMEASURES:
2956 if (ireq->i_val) {
2957 if ((vap->iv_flags & IEEE80211_F_WPA) == 0)
2958 return EOPNOTSUPP;
2959 vap->iv_flags |= IEEE80211_F_COUNTERM;
2960 } else
2961 vap->iv_flags &= ~IEEE80211_F_COUNTERM;
2962 /* XXX ERESTART? */
2963 break;
2964 case IEEE80211_IOC_WPA:
2965 if (ireq->i_val > 3)
2966 return EINVAL;
2967 /* XXX verify ciphers available */
2968 flags = vap->iv_flags & ~IEEE80211_F_WPA;
2969 switch (ireq->i_val) {
2970 case 0:
2971 /* wpa_supplicant calls this to clear the WPA config */
2972 break;
2973 case 1:
2974 if (!(vap->iv_caps & IEEE80211_C_WPA1))
2975 return EOPNOTSUPP;
2976 flags |= IEEE80211_F_WPA1;
2977 break;
2978 case 2:
2979 if (!(vap->iv_caps & IEEE80211_C_WPA2))
2980 return EOPNOTSUPP;
2981 flags |= IEEE80211_F_WPA2;
2982 break;
2983 case 3:
2984 if ((vap->iv_caps & IEEE80211_C_WPA) != IEEE80211_C_WPA)
2985 return EOPNOTSUPP;
2986 flags |= IEEE80211_F_WPA1 | IEEE80211_F_WPA2;
2987 break;
2988 default: /* Can't set any -> error */
2989 return EOPNOTSUPP;
2990 }
2991 vap->iv_flags = flags;
2992 error = ERESTART; /* NB: can change beacon frame */
2993 break;
2994 case IEEE80211_IOC_WME:
2995 if (ireq->i_val) {
2996 if ((vap->iv_caps & IEEE80211_C_WME) == 0)
2997 return EOPNOTSUPP;
2998 ieee80211_syncflag(vap, IEEE80211_F_WME);
2999 } else
3000 ieee80211_syncflag(vap, -IEEE80211_F_WME);
3001 error = ERESTART; /* NB: can change beacon frame */
3002 break;
3003 case IEEE80211_IOC_HIDESSID:
3004 if (ireq->i_val)
3005 vap->iv_flags |= IEEE80211_F_HIDESSID;
3006 else
3007 vap->iv_flags &= ~IEEE80211_F_HIDESSID;
3008 error = ERESTART; /* XXX ENETRESET? */
3009 break;
3010 case IEEE80211_IOC_APBRIDGE:
3011 if (ireq->i_val == 0)
3012 vap->iv_flags |= IEEE80211_F_NOBRIDGE;
3013 else
3014 vap->iv_flags &= ~IEEE80211_F_NOBRIDGE;
3015 break;
3016 case IEEE80211_IOC_BSSID:
3017 if (ireq->i_len != sizeof(tmpbssid))
3018 return EINVAL;
3019 error = copyin(ireq->i_data, tmpbssid, ireq->i_len);
3020 if (error)
3021 break;
3022 IEEE80211_ADDR_COPY(vap->iv_des_bssid, tmpbssid);
3023 if (IEEE80211_ADDR_EQ(vap->iv_des_bssid, zerobssid))
3024 vap->iv_flags &= ~IEEE80211_F_DESBSSID;
3025 else
3026 vap->iv_flags |= IEEE80211_F_DESBSSID;
3027 error = ENETRESET;
3028 break;
3029 case IEEE80211_IOC_CHANLIST:
3030 error = ieee80211_ioctl_setchanlist(vap, ireq);
3031 break;
3032 #define OLD_IEEE80211_IOC_SCAN_REQ 23
3033 #ifdef OLD_IEEE80211_IOC_SCAN_REQ
3034 case OLD_IEEE80211_IOC_SCAN_REQ:
3035 IEEE80211_DPRINTF(vap, IEEE80211_MSG_SCAN,
3036 "%s: active scan request\n", __func__);
3037 /*
3038 * If we are in INIT state then the driver has never
3039 * had a chance to setup hardware state to do a scan;
3040 * use the state machine to get us up the SCAN state.
3041 * Otherwise just invoke the scan machinery to start
3042 * a one-time scan.
3043 */
3044 if (vap->iv_state == IEEE80211_S_INIT)
3045 ieee80211_new_state(vap, IEEE80211_S_SCAN, 0);
3046 else
3047 (void) ieee80211_start_scan(vap,
3048 IEEE80211_SCAN_ACTIVE |
3049 IEEE80211_SCAN_NOPICK |
3050 IEEE80211_SCAN_ONCE,
3051 IEEE80211_SCAN_FOREVER, 0, 0,
3052 /* XXX use ioctl params */
3053 vap->iv_des_nssid, vap->iv_des_ssid);
3054 break;
3055 #endif /* OLD_IEEE80211_IOC_SCAN_REQ */
3056 case IEEE80211_IOC_SCAN_REQ:
3057 error = ieee80211_ioctl_scanreq(vap, ireq);
3058 break;
3059 case IEEE80211_IOC_SCAN_CANCEL:
3060 IEEE80211_DPRINTF(vap, IEEE80211_MSG_SCAN,
3061 "%s: cancel scan\n", __func__);
3062 ieee80211_cancel_scan(vap);
3063 break;
3064 case IEEE80211_IOC_HTCONF:
3065 if (ireq->i_val & 1)
3066 ieee80211_syncflag_ht(vap, IEEE80211_FHT_HT);
3067 else
3068 ieee80211_syncflag_ht(vap, -IEEE80211_FHT_HT);
3069 if (ireq->i_val & 2)
3070 ieee80211_syncflag_ht(vap, IEEE80211_FHT_USEHT40);
3071 else
3072 ieee80211_syncflag_ht(vap, -IEEE80211_FHT_USEHT40);
3073 error = ENETRESET;
3074 break;
3075 case IEEE80211_IOC_ADDMAC:
3076 case IEEE80211_IOC_DELMAC:
3077 error = ieee80211_ioctl_macmac(vap, ireq);
3078 break;
3079 case IEEE80211_IOC_MACCMD:
3080 error = ieee80211_ioctl_setmaccmd(vap, ireq);
3081 break;
3082 case IEEE80211_IOC_STA_STATS:
3083 error = ieee80211_ioctl_setstastats(vap, ireq);
3084 break;
3085 case IEEE80211_IOC_STA_TXPOW:
3086 error = ieee80211_ioctl_setstatxpow(vap, ireq);
3087 break;
3088 case IEEE80211_IOC_WME_CWMIN: /* WME: CWmin */
3089 case IEEE80211_IOC_WME_CWMAX: /* WME: CWmax */
3090 case IEEE80211_IOC_WME_AIFS: /* WME: AIFS */
3091 case IEEE80211_IOC_WME_TXOPLIMIT: /* WME: txops limit */
3092 case IEEE80211_IOC_WME_ACM: /* WME: ACM (bss only) */
3093 case IEEE80211_IOC_WME_ACKPOLICY: /* WME: ACK policy (!bss only) */
3094 error = ieee80211_ioctl_setwmeparam(vap, ireq);
3095 break;
3096 case IEEE80211_IOC_DTIM_PERIOD:
3097 if (vap->iv_opmode != IEEE80211_M_HOSTAP &&
3098 vap->iv_opmode != IEEE80211_M_MBSS &&
3099 vap->iv_opmode != IEEE80211_M_IBSS)
3100 return EINVAL;
3101 if (IEEE80211_DTIM_MIN <= ireq->i_val &&
3102 ireq->i_val <= IEEE80211_DTIM_MAX) {
3103 vap->iv_dtim_period = ireq->i_val;
3104 error = ENETRESET; /* requires restart */
3105 } else
3106 error = EINVAL;
3107 break;
3108 case IEEE80211_IOC_BEACON_INTERVAL:
3109 if (vap->iv_opmode != IEEE80211_M_HOSTAP &&
3110 vap->iv_opmode != IEEE80211_M_MBSS &&
3111 vap->iv_opmode != IEEE80211_M_IBSS)
3112 return EINVAL;
3113 if (IEEE80211_BINTVAL_MIN <= ireq->i_val &&
3114 ireq->i_val <= IEEE80211_BINTVAL_MAX) {
3115 ic->ic_bintval = ireq->i_val;
3116 error = ENETRESET; /* requires restart */
3117 } else
3118 error = EINVAL;
3119 break;
3120 case IEEE80211_IOC_PUREG:
3121 if (ireq->i_val)
3122 vap->iv_flags |= IEEE80211_F_PUREG;
3123 else
3124 vap->iv_flags &= ~IEEE80211_F_PUREG;
3125 /* NB: reset only if we're operating on an 11g channel */
3126 if (isvap11g(vap))
3127 error = ENETRESET;
3128 break;
3129 case IEEE80211_IOC_QUIET:
3130 vap->iv_quiet= ireq->i_val;
3131 break;
3132 case IEEE80211_IOC_QUIET_COUNT:
3133 vap->iv_quiet_count=ireq->i_val;
3134 break;
3135 case IEEE80211_IOC_QUIET_PERIOD:
3136 vap->iv_quiet_period=ireq->i_val;
3137 break;
3138 case IEEE80211_IOC_QUIET_OFFSET:
3139 vap->iv_quiet_offset=ireq->i_val;
3140 break;
3141 case IEEE80211_IOC_QUIET_DUR:
3142 if(ireq->i_val < vap->iv_bss->ni_intval)
3143 vap->iv_quiet_duration = ireq->i_val;
3144 else
3145 error = EINVAL;
3146 break;
3147 case IEEE80211_IOC_BGSCAN:
3148 if (ireq->i_val) {
3149 if ((vap->iv_caps & IEEE80211_C_BGSCAN) == 0)
3150 return EOPNOTSUPP;
3151 vap->iv_flags |= IEEE80211_F_BGSCAN;
3152 } else
3153 vap->iv_flags &= ~IEEE80211_F_BGSCAN;
3154 break;
3155 case IEEE80211_IOC_BGSCAN_IDLE:
3156 if (ireq->i_val >= IEEE80211_BGSCAN_IDLE_MIN)
3157 vap->iv_bgscanidle = ireq->i_val*hz/1000;
3158 else
3159 error = EINVAL;
3160 break;
3161 case IEEE80211_IOC_BGSCAN_INTERVAL:
3162 if (ireq->i_val >= IEEE80211_BGSCAN_INTVAL_MIN)
3163 vap->iv_bgscanintvl = ireq->i_val*hz;
3164 else
3165 error = EINVAL;
3166 break;
3167 case IEEE80211_IOC_SCANVALID:
3168 if (ireq->i_val >= IEEE80211_SCAN_VALID_MIN)
3169 vap->iv_scanvalid = ireq->i_val*hz;
3170 else
3171 error = EINVAL;
3172 break;
3173 case IEEE80211_IOC_FRAGTHRESHOLD:
3174 if ((vap->iv_caps & IEEE80211_C_TXFRAG) == 0 &&
3175 ireq->i_val != IEEE80211_FRAG_MAX)
3176 return EOPNOTSUPP;
3177 if (!(IEEE80211_FRAG_MIN <= ireq->i_val &&
3178 ireq->i_val <= IEEE80211_FRAG_MAX))
3179 return EINVAL;
3180 vap->iv_fragthreshold = ireq->i_val;
3181 error = ERESTART;
3182 break;
3183 case IEEE80211_IOC_BURST:
3184 if (ireq->i_val) {
3185 if ((vap->iv_caps & IEEE80211_C_BURST) == 0)
3186 return EOPNOTSUPP;
3187 ieee80211_syncflag(vap, IEEE80211_F_BURST);
3188 } else
3189 ieee80211_syncflag(vap, -IEEE80211_F_BURST);
3190 error = ERESTART;
3191 break;
3192 case IEEE80211_IOC_BMISSTHRESHOLD:
3193 if (!(IEEE80211_HWBMISS_MIN <= ireq->i_val &&
3194 ireq->i_val <= IEEE80211_HWBMISS_MAX))
3195 return EINVAL;
3196 vap->iv_bmissthreshold = ireq->i_val;
3197 error = ERESTART;
3198 break;
3199 case IEEE80211_IOC_CURCHAN:
3200 error = ieee80211_ioctl_setcurchan(vap, ireq);
3201 break;
3202 case IEEE80211_IOC_SHORTGI:
3203 if (ireq->i_val) {
3204 #define IEEE80211_HTCAP_SHORTGI \
3205 (IEEE80211_HTCAP_SHORTGI20 | IEEE80211_HTCAP_SHORTGI40)
3206 if (((ireq->i_val ^ vap->iv_htcaps) & IEEE80211_HTCAP_SHORTGI) != 0)
3207 return EINVAL;
3208 if (ireq->i_val & IEEE80211_HTCAP_SHORTGI20)
3209 vap->iv_flags_ht |= IEEE80211_FHT_SHORTGI20;
3210 if (ireq->i_val & IEEE80211_HTCAP_SHORTGI40)
3211 vap->iv_flags_ht |= IEEE80211_FHT_SHORTGI40;
3212 #undef IEEE80211_HTCAP_SHORTGI
3213 } else
3214 vap->iv_flags_ht &=
3215 ~(IEEE80211_FHT_SHORTGI20 | IEEE80211_FHT_SHORTGI40);
3216 error = ERESTART;
3217 break;
3218 case IEEE80211_IOC_AMPDU:
3219 if (ireq->i_val && (vap->iv_htcaps & IEEE80211_HTC_AMPDU) == 0)
3220 return EINVAL;
3221 if (ireq->i_val & 1)
3222 vap->iv_flags_ht |= IEEE80211_FHT_AMPDU_TX;
3223 else
3224 vap->iv_flags_ht &= ~IEEE80211_FHT_AMPDU_TX;
3225 if (ireq->i_val & 2)
3226 vap->iv_flags_ht |= IEEE80211_FHT_AMPDU_RX;
3227 else
3228 vap->iv_flags_ht &= ~IEEE80211_FHT_AMPDU_RX;
3229 /* NB: reset only if we're operating on an 11n channel */
3230 if (isvapht(vap))
3231 error = ERESTART;
3232 break;
3233 case IEEE80211_IOC_AMPDU_LIMIT:
3234 /* XXX TODO: figure out ampdu_limit versus ampdu_rxmax */
3235 if (!(IEEE80211_HTCAP_MAXRXAMPDU_8K <= ireq->i_val &&
3236 ireq->i_val <= IEEE80211_HTCAP_MAXRXAMPDU_64K))
3237 return EINVAL;
3238 if (vap->iv_opmode == IEEE80211_M_HOSTAP)
3239 vap->iv_ampdu_rxmax = ireq->i_val;
3240 else
3241 vap->iv_ampdu_limit = ireq->i_val;
3242 error = ERESTART;
3243 break;
3244 case IEEE80211_IOC_AMPDU_DENSITY:
3245 if (!(IEEE80211_HTCAP_MPDUDENSITY_NA <= ireq->i_val &&
3246 ireq->i_val <= IEEE80211_HTCAP_MPDUDENSITY_16))
3247 return EINVAL;
3248 vap->iv_ampdu_density = ireq->i_val;
3249 error = ERESTART;
3250 break;
3251 case IEEE80211_IOC_AMSDU:
3252 if (ireq->i_val && (vap->iv_htcaps & IEEE80211_HTC_AMSDU) == 0)
3253 return EINVAL;
3254 if (ireq->i_val & 1)
3255 vap->iv_flags_ht |= IEEE80211_FHT_AMSDU_TX;
3256 else
3257 vap->iv_flags_ht &= ~IEEE80211_FHT_AMSDU_TX;
3258 if (ireq->i_val & 2)
3259 vap->iv_flags_ht |= IEEE80211_FHT_AMSDU_RX;
3260 else
3261 vap->iv_flags_ht &= ~IEEE80211_FHT_AMSDU_RX;
3262 /* NB: reset only if we're operating on an 11n channel */
3263 if (isvapht(vap))
3264 error = ERESTART;
3265 break;
3266 case IEEE80211_IOC_AMSDU_LIMIT:
3267 /* XXX validate */
3268 vap->iv_amsdu_limit = ireq->i_val; /* XXX truncation? */
3269 break;
3270 case IEEE80211_IOC_PUREN:
3271 if (ireq->i_val) {
3272 if ((vap->iv_flags_ht & IEEE80211_FHT_HT) == 0)
3273 return EINVAL;
3274 vap->iv_flags_ht |= IEEE80211_FHT_PUREN;
3275 } else
3276 vap->iv_flags_ht &= ~IEEE80211_FHT_PUREN;
3277 /* NB: reset only if we're operating on an 11n channel */
3278 if (isvapht(vap))
3279 error = ERESTART;
3280 break;
3281 case IEEE80211_IOC_DOTH:
3282 if (ireq->i_val) {
3283 #if 0
3284 /* XXX no capability */
3285 if ((vap->iv_caps & IEEE80211_C_DOTH) == 0)
3286 return EOPNOTSUPP;
3287 #endif
3288 vap->iv_flags |= IEEE80211_F_DOTH;
3289 } else
3290 vap->iv_flags &= ~IEEE80211_F_DOTH;
3291 error = ENETRESET;
3292 break;
3293 case IEEE80211_IOC_REGDOMAIN:
3294 error = ieee80211_ioctl_setregdomain(vap, ireq);
3295 break;
3296 case IEEE80211_IOC_ROAM:
3297 error = ieee80211_ioctl_setroam(vap, ireq);
3298 break;
3299 case IEEE80211_IOC_TXPARAMS:
3300 error = ieee80211_ioctl_settxparams(vap, ireq);
3301 break;
3302 case IEEE80211_IOC_HTCOMPAT:
3303 if (ireq->i_val) {
3304 if ((vap->iv_flags_ht & IEEE80211_FHT_HT) == 0)
3305 return EOPNOTSUPP;
3306 vap->iv_flags_ht |= IEEE80211_FHT_HTCOMPAT;
3307 } else
3308 vap->iv_flags_ht &= ~IEEE80211_FHT_HTCOMPAT;
3309 /* NB: reset only if we're operating on an 11n channel */
3310 if (isvapht(vap))
3311 error = ERESTART;
3312 break;
3313 case IEEE80211_IOC_DWDS:
3314 if (ireq->i_val) {
3315 /* NB: DWDS only makes sense for WDS-capable devices */
3316 if ((ic->ic_caps & IEEE80211_C_WDS) == 0)
3317 return EOPNOTSUPP;
3318 /* NB: DWDS is used only with ap+sta vaps */
3319 if (vap->iv_opmode != IEEE80211_M_HOSTAP &&
3320 vap->iv_opmode != IEEE80211_M_STA)
3321 return EINVAL;
3322 vap->iv_flags |= IEEE80211_F_DWDS;
3323 if (vap->iv_opmode == IEEE80211_M_STA)
3324 vap->iv_flags_ext |= IEEE80211_FEXT_4ADDR;
3325 } else {
3326 vap->iv_flags &= ~IEEE80211_F_DWDS;
3327 if (vap->iv_opmode == IEEE80211_M_STA)
3328 vap->iv_flags_ext &= ~IEEE80211_FEXT_4ADDR;
3329 }
3330 break;
3331 case IEEE80211_IOC_INACTIVITY:
3332 if (ireq->i_val)
3333 vap->iv_flags_ext |= IEEE80211_FEXT_INACT;
3334 else
3335 vap->iv_flags_ext &= ~IEEE80211_FEXT_INACT;
3336 break;
3337 case IEEE80211_IOC_APPIE:
3338 error = ieee80211_ioctl_setappie(vap, ireq);
3339 break;
3340 case IEEE80211_IOC_WPS:
3341 if (ireq->i_val) {
3342 if ((vap->iv_caps & IEEE80211_C_WPA) == 0)
3343 return EOPNOTSUPP;
3344 vap->iv_flags_ext |= IEEE80211_FEXT_WPS;
3345 } else
3346 vap->iv_flags_ext &= ~IEEE80211_FEXT_WPS;
3347 break;
3348 case IEEE80211_IOC_TSN:
3349 if (ireq->i_val) {
3350 if ((vap->iv_caps & IEEE80211_C_WPA) == 0)
3351 return EOPNOTSUPP;
3352 vap->iv_flags_ext |= IEEE80211_FEXT_TSN;
3353 } else
3354 vap->iv_flags_ext &= ~IEEE80211_FEXT_TSN;
3355 break;
3356 case IEEE80211_IOC_CHANSWITCH:
3357 error = ieee80211_ioctl_chanswitch(vap, ireq);
3358 break;
3359 case IEEE80211_IOC_DFS:
3360 if (ireq->i_val) {
3361 if ((vap->iv_caps & IEEE80211_C_DFS) == 0)
3362 return EOPNOTSUPP;
3363 /* NB: DFS requires 11h support */
3364 if ((vap->iv_flags & IEEE80211_F_DOTH) == 0)
3365 return EINVAL;
3366 vap->iv_flags_ext |= IEEE80211_FEXT_DFS;
3367 } else
3368 vap->iv_flags_ext &= ~IEEE80211_FEXT_DFS;
3369 break;
3370 case IEEE80211_IOC_DOTD:
3371 if (ireq->i_val)
3372 vap->iv_flags_ext |= IEEE80211_FEXT_DOTD;
3373 else
3374 vap->iv_flags_ext &= ~IEEE80211_FEXT_DOTD;
3375 if (vap->iv_opmode == IEEE80211_M_STA)
3376 error = ENETRESET;
3377 break;
3378 case IEEE80211_IOC_HTPROTMODE:
3379 if (ireq->i_val > IEEE80211_PROT_RTSCTS)
3380 return EINVAL;
3381 vap->iv_htprotmode = ireq->i_val ?
3382 IEEE80211_PROT_RTSCTS : IEEE80211_PROT_NONE;
3383 /* NB: if not operating in 11n this can wait */
3384 if (isvapht(vap))
3385 error = ERESTART;
3386 /* Notify driver layer of HT protmode changes */
3387 ieee80211_vap_update_ht_protmode(vap);
3388 break;
3389 case IEEE80211_IOC_STA_VLAN:
3390 error = ieee80211_ioctl_setstavlan(vap, ireq);
3391 break;
3392 case IEEE80211_IOC_SMPS:
3393 if ((ireq->i_val &~ IEEE80211_HTCAP_SMPS) != 0 ||
3394 ireq->i_val == 0x0008) /* value of 2 is reserved */
3395 return EINVAL;
3396 if (ireq->i_val != IEEE80211_HTCAP_SMPS_OFF &&
3397 (vap->iv_htcaps & IEEE80211_HTC_SMPS) == 0)
3398 return EOPNOTSUPP;
3399 vap->iv_htcaps = (vap->iv_htcaps &~ IEEE80211_HTCAP_SMPS) |
3400 ireq->i_val;
3401 /* NB: if not operating in 11n this can wait */
3402 if (isvapht(vap))
3403 error = ERESTART;
3404 break;
3405 case IEEE80211_IOC_RIFS:
3406 if (ireq->i_val != 0) {
3407 if ((vap->iv_htcaps & IEEE80211_HTC_RIFS) == 0)
3408 return EOPNOTSUPP;
3409 vap->iv_flags_ht |= IEEE80211_FHT_RIFS;
3410 } else
3411 vap->iv_flags_ht &= ~IEEE80211_FHT_RIFS;
3412 /* NB: if not operating in 11n this can wait */
3413 if (isvapht(vap))
3414 error = ERESTART;
3415 break;
3416 case IEEE80211_IOC_STBC:
3417 /* Check if we can do STBC TX/RX before changing the setting */
3418 if ((ireq->i_val & 1) &&
3419 ((vap->iv_htcaps & IEEE80211_HTCAP_TXSTBC) == 0))
3420 return EOPNOTSUPP;
3421 if ((ireq->i_val & 2) &&
3422 ((vap->iv_htcaps & IEEE80211_HTCAP_RXSTBC) == 0))
3423 return EOPNOTSUPP;
3424
3425 /* TX */
3426 if (ireq->i_val & 1)
3427 vap->iv_flags_ht |= IEEE80211_FHT_STBC_TX;
3428 else
3429 vap->iv_flags_ht &= ~IEEE80211_FHT_STBC_TX;
3430
3431 /* RX */
3432 if (ireq->i_val & 2)
3433 vap->iv_flags_ht |= IEEE80211_FHT_STBC_RX;
3434 else
3435 vap->iv_flags_ht &= ~IEEE80211_FHT_STBC_RX;
3436
3437 /* NB: reset only if we're operating on an 11n channel */
3438 if (isvapht(vap))
3439 error = ERESTART;
3440 break;
3441 case IEEE80211_IOC_LDPC:
3442 /* Check if we can do LDPC TX/RX before changing the setting */
3443 if ((ireq->i_val & 1) &&
3444 (vap->iv_htcaps & IEEE80211_HTC_TXLDPC) == 0)
3445 return EOPNOTSUPP;
3446 if ((ireq->i_val & 2) &&
3447 (vap->iv_htcaps & IEEE80211_HTCAP_LDPC) == 0)
3448 return EOPNOTSUPP;
3449
3450 /* TX */
3451 if (ireq->i_val & 1)
3452 vap->iv_flags_ht |= IEEE80211_FHT_LDPC_TX;
3453 else
3454 vap->iv_flags_ht &= ~IEEE80211_FHT_LDPC_TX;
3455
3456 /* RX */
3457 if (ireq->i_val & 2)
3458 vap->iv_flags_ht |= IEEE80211_FHT_LDPC_RX;
3459 else
3460 vap->iv_flags_ht &= ~IEEE80211_FHT_LDPC_RX;
3461
3462 /* NB: reset only if we're operating on an 11n channel */
3463 if (isvapht(vap))
3464 error = ERESTART;
3465 break;
3466 case IEEE80211_IOC_UAPSD:
3467 if ((vap->iv_caps & IEEE80211_C_UAPSD) == 0)
3468 return EOPNOTSUPP;
3469 if (ireq->i_val == 0)
3470 vap->iv_flags_ext &= ~IEEE80211_FEXT_UAPSD;
3471 else if (ireq->i_val == 1)
3472 vap->iv_flags_ext |= IEEE80211_FEXT_UAPSD;
3473 else
3474 return EINVAL;
3475 break;
3476
3477 /* VHT */
3478 case IEEE80211_IOC_VHTCONF:
3479 if (ireq->i_val & IEEE80211_FVHT_VHT)
3480 ieee80211_syncflag_vht(vap, IEEE80211_FVHT_VHT);
3481 else
3482 ieee80211_syncflag_vht(vap, -IEEE80211_FVHT_VHT);
3483
3484 if (ireq->i_val & IEEE80211_FVHT_USEVHT40)
3485 ieee80211_syncflag_vht(vap, IEEE80211_FVHT_USEVHT40);
3486 else
3487 ieee80211_syncflag_vht(vap, -IEEE80211_FVHT_USEVHT40);
3488
3489 if (ireq->i_val & IEEE80211_FVHT_USEVHT80)
3490 ieee80211_syncflag_vht(vap, IEEE80211_FVHT_USEVHT80);
3491 else
3492 ieee80211_syncflag_vht(vap, -IEEE80211_FVHT_USEVHT80);
3493
3494 if (ireq->i_val & IEEE80211_FVHT_USEVHT160)
3495 ieee80211_syncflag_vht(vap, IEEE80211_FVHT_USEVHT160);
3496 else
3497 ieee80211_syncflag_vht(vap, -IEEE80211_FVHT_USEVHT160);
3498
3499 if (ireq->i_val & IEEE80211_FVHT_USEVHT80P80)
3500 ieee80211_syncflag_vht(vap, IEEE80211_FVHT_USEVHT80P80);
3501 else
3502 ieee80211_syncflag_vht(vap, -IEEE80211_FVHT_USEVHT80P80);
3503
3504 error = ENETRESET;
3505 break;
3506
3507 default:
3508 error = ieee80211_ioctl_setdefault(vap, ireq);
3509 break;
3510 }
3511 /*
3512 * The convention is that ENETRESET means an operation
3513 * requires a complete re-initialization of the device (e.g.
3514 * changing something that affects the association state).
3515 * ERESTART means the request may be handled with only a
3516 * reload of the hardware state. We hand ERESTART requests
3517 * to the iv_reset callback so the driver can decide. If
3518 * a device does not fillin iv_reset then it defaults to one
3519 * that returns ENETRESET. Otherwise a driver may return
3520 * ENETRESET (in which case a full reset will be done) or
3521 * 0 to mean there's no need to do anything (e.g. when the
3522 * change has no effect on the driver/device).
3523 */
3524 if (error == ERESTART)
3525 error = IFNET_IS_UP_RUNNING(vap->iv_ifp) ?
3526 vap->iv_reset(vap, ireq->i_type) : 0;
3527 if (error == ENETRESET) {
3528 /* XXX need to re-think AUTO handling */
3529 if (IS_UP_AUTO(vap))
3530 ieee80211_init(vap);
3531 error = 0;
3532 }
3533 return error;
3534 }
3535
3536 int
ieee80211_ioctl(struct ifnet * ifp,u_long cmd,caddr_t data)3537 ieee80211_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
3538 {
3539 struct ieee80211vap *vap = ifp->if_softc;
3540 struct ieee80211com *ic = vap->iv_ic;
3541 int error = 0, wait = 0, ic_used;
3542 struct ifreq *ifr;
3543 struct ifaddr *ifa; /* XXX */
3544
3545 ic_used = (cmd != SIOCSIFMTU && cmd != SIOCG80211STATS);
3546 if (ic_used && (error = ieee80211_com_vincref(vap)) != 0)
3547 return (error);
3548
3549 switch (cmd) {
3550 case SIOCSIFFLAGS:
3551 IEEE80211_LOCK(ic);
3552 if ((ifp->if_flags ^ vap->iv_ifflags) & IFF_PROMISC) {
3553 /*
3554 * Enable promiscuous mode when:
3555 * 1. Interface is not a member of bridge, or
3556 * 2. Requested by user, or
3557 * 3. In monitor (or adhoc-demo) mode.
3558 */
3559 if (ifp->if_bridge == NULL ||
3560 (ifp->if_flags & IFF_PPROMISC) != 0 ||
3561 vap->iv_opmode == IEEE80211_M_MONITOR ||
3562 (vap->iv_opmode == IEEE80211_M_AHDEMO &&
3563 (vap->iv_caps & IEEE80211_C_TDMA) == 0)) {
3564 ieee80211_promisc(vap,
3565 ifp->if_flags & IFF_PROMISC);
3566 vap->iv_ifflags ^= IFF_PROMISC;
3567 }
3568 }
3569 if ((ifp->if_flags ^ vap->iv_ifflags) & IFF_ALLMULTI) {
3570 ieee80211_allmulti(vap, ifp->if_flags & IFF_ALLMULTI);
3571 vap->iv_ifflags ^= IFF_ALLMULTI;
3572 }
3573 if (ifp->if_flags & IFF_UP) {
3574 /*
3575 * Bring ourself up unless we're already operational.
3576 * If we're the first vap and the parent is not up
3577 * then it will automatically be brought up as a
3578 * side-effect of bringing ourself up.
3579 */
3580 if (vap->iv_state == IEEE80211_S_INIT) {
3581 if (ic->ic_nrunning == 0)
3582 wait = 1;
3583 ieee80211_start_locked(vap);
3584 }
3585 } else if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
3586 /*
3587 * Stop ourself. If we are the last vap to be
3588 * marked down the parent will also be taken down.
3589 */
3590 if (ic->ic_nrunning == 1)
3591 wait = 1;
3592 ieee80211_stop_locked(vap);
3593 }
3594 IEEE80211_UNLOCK(ic);
3595 /* Wait for parent ioctl handler if it was queued */
3596 if (wait) {
3597 struct epoch_tracker et;
3598
3599 ieee80211_waitfor_parent(ic);
3600
3601 /*
3602 * Check if the MAC address was changed
3603 * via SIOCSIFLLADDR ioctl.
3604 *
3605 * NB: device may be detached during initialization;
3606 * use if_ioctl for existence check.
3607 */
3608 NET_EPOCH_ENTER(et);
3609 if (ifp->if_ioctl == ieee80211_ioctl &&
3610 (ifp->if_flags & IFF_UP) == 0 &&
3611 !IEEE80211_ADDR_EQ(vap->iv_myaddr, IF_LLADDR(ifp)))
3612 IEEE80211_ADDR_COPY(vap->iv_myaddr,
3613 IF_LLADDR(ifp));
3614 NET_EPOCH_EXIT(et);
3615 }
3616 break;
3617 case SIOCADDMULTI:
3618 case SIOCDELMULTI:
3619 ieee80211_runtask(ic, &ic->ic_mcast_task);
3620 break;
3621 case SIOCSIFMEDIA:
3622 case SIOCGIFMEDIA:
3623 ifr = (struct ifreq *)data;
3624 error = ifmedia_ioctl(ifp, ifr, &vap->iv_media, cmd);
3625 break;
3626 case SIOCG80211:
3627 error = ieee80211_ioctl_get80211(vap, cmd,
3628 (struct ieee80211req *) data);
3629 break;
3630 case SIOCS80211:
3631 error = ieee80211_priv_check_vap_manage(cmd, vap, ifp);
3632 if (error == 0)
3633 error = ieee80211_ioctl_set80211(vap, cmd,
3634 (struct ieee80211req *) data);
3635 break;
3636 case SIOCG80211STATS:
3637 ifr = (struct ifreq *)data;
3638 error = copyout(&vap->iv_stats, ifr_data_get_ptr(ifr),
3639 sizeof(vap->iv_stats));
3640 break;
3641 case SIOCSIFMTU:
3642 ifr = (struct ifreq *)data;
3643 if (!(IEEE80211_MTU_MIN <= ifr->ifr_mtu &&
3644 ifr->ifr_mtu <= IEEE80211_MTU_MAX))
3645 error = EINVAL;
3646 else
3647 ifp->if_mtu = ifr->ifr_mtu;
3648 break;
3649 case SIOCSIFADDR:
3650 /*
3651 * XXX Handle this directly so we can suppress if_init calls.
3652 * XXX This should be done in ether_ioctl but for the moment
3653 * XXX there are too many other parts of the system that
3654 * XXX set IFF_UP and so suppress if_init being called when
3655 * XXX it should be.
3656 */
3657 ifa = (struct ifaddr *) data;
3658 switch (ifa->ifa_addr->sa_family) {
3659 #ifdef INET
3660 case AF_INET:
3661 if ((ifp->if_flags & IFF_UP) == 0) {
3662 ifp->if_flags |= IFF_UP;
3663 ifp->if_init(ifp->if_softc);
3664 }
3665 arp_ifinit(ifp, ifa);
3666 break;
3667 #endif
3668 default:
3669 if ((ifp->if_flags & IFF_UP) == 0) {
3670 ifp->if_flags |= IFF_UP;
3671 ifp->if_init(ifp->if_softc);
3672 }
3673 break;
3674 }
3675 break;
3676 case SIOCSIFLLADDR:
3677 error = ieee80211_priv_check_vap_setmac(cmd, vap, ifp);
3678 if (error == 0)
3679 break;
3680 /* Fallthrough */
3681 default:
3682 /*
3683 * Pass unknown ioctls first to the driver, and if it
3684 * returns ENOTTY, then to the generic Ethernet handler.
3685 */
3686 if (ic->ic_ioctl != NULL &&
3687 (error = ic->ic_ioctl(ic, cmd, data)) != ENOTTY)
3688 break;
3689 error = ether_ioctl(ifp, cmd, data);
3690 break;
3691 }
3692
3693 if (ic_used)
3694 ieee80211_com_vdecref(vap);
3695
3696 return (error);
3697 }
3698