sys/net80211/ieee80211_ioctl.c

   1 /*-
   2  * Copyright (c) 2001 Atsushi Onoe
   3  * Copyright (c) 2002-2009 Sam Leffler, Errno Consulting
   4  * All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions and the following disclaimer.
  11  * 2. Redistributions in binary form must reproduce the above copyright
  12  *    notice, this list of conditions and the following disclaimer in the
  13  *    documentation and/or other materials provided with the distribution.
  14  *
  15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  17  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  18  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  19  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  20  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  21  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  22  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  24  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  25  */
  26
  27 #include <sys/cdefs.h>
  28 __FBSDID("$FreeBSD$");
  29
  30 /*
  31  * IEEE 802.11 ioctl support (FreeBSD-specific)
  32  */
  33
  34 #include "opt_inet.h"
  35 #include "opt_ipx.h"
  36 #include "opt_wlan.h"
  37
  38 #include <sys/endian.h>
  39 #include <sys/param.h>
  40 #include <sys/kernel.h>
  41 #include <sys/priv.h>
  42 #include <sys/socket.h>
  43 #include <sys/sockio.h>
  44 #include <sys/systm.h>
  45
  46 #include <net/if.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 #ifdef IPX
  57 #include <netipx/ipx.h>
  58 #include <netipx/ipx_if.h>
  59 #endif
  60
  61 #include <net80211/ieee80211_var.h>
  62 #include <net80211/ieee80211_ioctl.h>
  63 #include <net80211/ieee80211_regdomain.h>
  64 #include <net80211/ieee80211_input.h>
  65
  66 #define IS_UP_AUTO(_vap) \
  67         (IFNET_IS_UP_RUNNING((_vap)->iv_ifp) && \
  68          (_vap)->iv_roaming == IEEE80211_ROAMING_AUTO)
  69
  70 static const uint8_t zerobssid[IEEE80211_ADDR_LEN];
  71 static struct ieee80211_channel *findchannel(struct ieee80211com *,
  72                 int ieee, int mode);
  73 static int ieee80211_scanreq(struct ieee80211vap *,
  74                 struct ieee80211_scan_req *);
  75
  76 static __noinline int
  77 ieee80211_ioctl_getkey(struct ieee80211vap *vap, struct ieee80211req *ireq)
  78 {
  79         struct ieee80211com *ic = vap->iv_ic;
  80         struct ieee80211_node *ni;
  81         struct ieee80211req_key ik;
  82         struct ieee80211_key *wk;
  83         const struct ieee80211_cipher *cip;
  84         u_int kid;
  85         int error;
  86
  87         if (ireq->i_len != sizeof(ik))
  88                 return EINVAL;
  89         error = copyin(ireq->i_data, &ik, sizeof(ik));
  90         if (error)
  91                 return error;
  92         kid = ik.ik_keyix;
  93         if (kid == IEEE80211_KEYIX_NONE) {
  94                 ni = ieee80211_find_vap_node(&ic->ic_sta, vap, ik.ik_macaddr);
  95                 if (ni == NULL)
  96                         return ENOENT;
  97                 wk = &ni->ni_ucastkey;
  98         } else {
  99                 if (kid >= IEEE80211_WEP_NKID)
 100                         return EINVAL;
 101                 wk = &vap->iv_nw_keys[kid];
 102                 IEEE80211_ADDR_COPY(&ik.ik_macaddr, vap->iv_bss->ni_macaddr);
 103                 ni = NULL;
 104         }
 105         cip = wk->wk_cipher;
 106         ik.ik_type = cip->ic_cipher;
 107         ik.ik_keylen = wk->wk_keylen;
 108         ik.ik_flags = wk->wk_flags & (IEEE80211_KEY_XMIT | IEEE80211_KEY_RECV);
 109         if (wk->wk_keyix == vap->iv_def_txkey)
 110                 ik.ik_flags |= IEEE80211_KEY_DEFAULT;
 111         if (priv_check(curthread, PRIV_NET80211_GETKEY) == 0) {
 112                 /* NB: only root can read key data */
 113                 ik.ik_keyrsc = wk->wk_keyrsc[IEEE80211_NONQOS_TID];
 114                 ik.ik_keytsc = wk->wk_keytsc;
 115                 memcpy(ik.ik_keydata, wk->wk_key, wk->wk_keylen);
 116                 if (cip->ic_cipher == IEEE80211_CIPHER_TKIP) {
 117                         memcpy(ik.ik_keydata+wk->wk_keylen,
 118                                 wk->wk_key + IEEE80211_KEYBUF_SIZE,
 119                                 IEEE80211_MICBUF_SIZE);
 120                         ik.ik_keylen += IEEE80211_MICBUF_SIZE;
 121                 }
 122         } else {
 123                 ik.ik_keyrsc = 0;
 124                 ik.ik_keytsc = 0;
 125                 memset(ik.ik_keydata, 0, sizeof(ik.ik_keydata));
 126         }
 127         if (ni != NULL)
 128                 ieee80211_free_node(ni);
 129         return copyout(&ik, ireq->i_data, sizeof(ik));
 130 }
 131
 132 static __noinline int
 133 ieee80211_ioctl_getchanlist(struct ieee80211vap *vap, struct ieee80211req *ireq)
 134 {
 135         struct ieee80211com *ic = vap->iv_ic;
 136
 137         if (sizeof(ic->ic_chan_active) < ireq->i_len)
 138                 ireq->i_len = sizeof(ic->ic_chan_active);
 139         return copyout(&ic->ic_chan_active, ireq->i_data, ireq->i_len);
 140 }
 141
 142 static __noinline int
 143 ieee80211_ioctl_getchaninfo(struct ieee80211vap *vap, struct ieee80211req *ireq)
 144 {
 145         struct ieee80211com *ic = vap->iv_ic;
 146         uint32_t space;
 147
 148         space = __offsetof(struct ieee80211req_chaninfo,
 149                         ic_chans[ic->ic_nchans]);
 150         if (space > ireq->i_len)
 151                 space = ireq->i_len;
 152         /* XXX assumes compatible layout */
 153         return copyout(&ic->ic_nchans, ireq->i_data, space);
 154 }
 155
 156 static __noinline int
 157 ieee80211_ioctl_getwpaie(struct ieee80211vap *vap,
 158         struct ieee80211req *ireq, int req)
 159 {
 160         struct ieee80211_node *ni;
 161         struct ieee80211req_wpaie2 wpaie;
 162         int error;
 163
 164         if (ireq->i_len < IEEE80211_ADDR_LEN)
 165                 return EINVAL;
 166         error = copyin(ireq->i_data, wpaie.wpa_macaddr, IEEE80211_ADDR_LEN);
 167         if (error != 0)
 168                 return error;
 169         ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap, wpaie.wpa_macaddr);
 170         if (ni == NULL)
 171                 return ENOENT;
 172         memset(wpaie.wpa_ie, 0, sizeof(wpaie.wpa_ie));
 173         if (ni->ni_ies.wpa_ie != NULL) {
 174                 int ielen = ni->ni_ies.wpa_ie[1] + 2;
 175                 if (ielen > sizeof(wpaie.wpa_ie))
 176                         ielen = sizeof(wpaie.wpa_ie);
 177                 memcpy(wpaie.wpa_ie, ni->ni_ies.wpa_ie, ielen);
 178         }
 179         if (req == IEEE80211_IOC_WPAIE2) {
 180                 memset(wpaie.rsn_ie, 0, sizeof(wpaie.rsn_ie));
 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         return copyout(&wpaie, ireq->i_data, ireq->i_len);
 203 }
 204
 205 static __noinline int
 206 ieee80211_ioctl_getstastats(struct ieee80211vap *vap, struct ieee80211req *ireq)
 207 {
 208         struct ieee80211_node *ni;
 209         uint8_t macaddr[IEEE80211_ADDR_LEN];
 210         const size_t off = __offsetof(struct ieee80211req_sta_stats, is_stats);
 211         int error;
 212
 213         if (ireq->i_len < off)
 214                 return EINVAL;
 215         error = copyin(ireq->i_data, macaddr, IEEE80211_ADDR_LEN);
 216         if (error != 0)
 217                 return error;
 218         ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap, macaddr);
 219         if (ni == NULL)
 220                 return ENOENT;
 221         if (ireq->i_len > sizeof(struct ieee80211req_sta_stats))
 222                 ireq->i_len = sizeof(struct ieee80211req_sta_stats);
 223         /* NB: copy out only the statistics */
 224         error = copyout(&ni->ni_stats, (uint8_t *) ireq->i_data + off,
 225                         ireq->i_len - off);
 226         ieee80211_free_node(ni);
 227         return error;
 228 }
 229
 230 struct scanreq {
 231         struct ieee80211req_scan_result *sr;
 232         size_t space;
 233 };
 234
 235 static size_t
 236 scan_space(const struct ieee80211_scan_entry *se, int *ielen)
 237 {
 238         size_t len;
 239
 240         *ielen = se->se_ies.len;
 241         /*
 242          * NB: ie's can be no more than 255 bytes and the max 802.11
 243          * packet is <3Kbytes so we are sure this doesn't overflow
 244          * 16-bits; if this is a concern we can drop the ie's.
 245          */
 246         len = sizeof(struct ieee80211req_scan_result) + se->se_ssid[1] +
 247             se->se_meshid[1] + *ielen;
 248         return roundup(len, sizeof(uint32_t));
 249 }
 250
 251 static void
 252 get_scan_space(void *arg, const struct ieee80211_scan_entry *se)
 253 {
 254         struct scanreq *req = arg;
 255         int ielen;
 256
 257         req->space += scan_space(se, &ielen);
 258 }
 259
 260 static __noinline void
 261 get_scan_result(void *arg, const struct ieee80211_scan_entry *se)
 262 {
 263         struct scanreq *req = arg;
 264         struct ieee80211req_scan_result *sr;
 265         int ielen, len, nr, nxr;
 266         uint8_t *cp;
 267
 268         len = scan_space(se, &ielen);
 269         if (len > req->space)
 270                 return;
 271
 272         sr = req->sr;
 273         KASSERT(len <= 65535 && ielen <= 65535,
 274             ("len %u ssid %u ie %u", len, se->se_ssid[1], ielen));
 275         sr->isr_len = len;
 276         sr->isr_ie_off = sizeof(struct ieee80211req_scan_result);
 277         sr->isr_ie_len = ielen;
 278         sr->isr_freq = se->se_chan->ic_freq;
 279         sr->isr_flags = se->se_chan->ic_flags;
 280         sr->isr_rssi = se->se_rssi;
 281         sr->isr_noise = se->se_noise;
 282         sr->isr_intval = se->se_intval;
 283         sr->isr_capinfo = se->se_capinfo;
 284         sr->isr_erp = se->se_erp;
 285         IEEE80211_ADDR_COPY(sr->isr_bssid, se->se_bssid);
 286         nr = min(se->se_rates[1], IEEE80211_RATE_MAXSIZE);
 287         memcpy(sr->isr_rates, se->se_rates+2, nr);
 288         nxr = min(se->se_xrates[1], IEEE80211_RATE_MAXSIZE - nr);
 289         memcpy(sr->isr_rates+nr, se->se_xrates+2, nxr);
 290         sr->isr_nrates = nr + nxr;
 291
 292         /* copy SSID */
 293         sr->isr_ssid_len = se->se_ssid[1];
 294         cp = ((uint8_t *)sr) + sr->isr_ie_off;
 295         memcpy(cp, se->se_ssid+2, sr->isr_ssid_len);
 296
 297         /* copy mesh id */
 298         cp += sr->isr_ssid_len;
 299         sr->isr_meshid_len = se->se_meshid[1];
 300         memcpy(cp, se->se_meshid+2, sr->isr_meshid_len);
 301         cp += sr->isr_meshid_len;
 302
 303         if (ielen)
 304                 memcpy(cp, se->se_ies.data, ielen);
 305
 306         req->space -= len;
 307         req->sr = (struct ieee80211req_scan_result *)(((uint8_t *)sr) + len);
 308 }
 309
 310 static __noinline int
 311 ieee80211_ioctl_getscanresults(struct ieee80211vap *vap,
 312         struct ieee80211req *ireq)
 313 {
 314         struct scanreq req;
 315         int error;
 316
 317         if (ireq->i_len < sizeof(struct scanreq))
 318                 return EFAULT;
 319
 320         error = 0;
 321         req.space = 0;
 322         ieee80211_scan_iterate(vap, get_scan_space, &req);
 323         if (req.space > ireq->i_len)
 324                 req.space = ireq->i_len;
 325         if (req.space > 0) {
 326                 uint32_t space;
 327                 void *p;
 328
 329                 space = req.space;
 330                 /* XXX M_WAITOK after driver lock released */
 331                 p = malloc(space, M_TEMP, M_NOWAIT | M_ZERO);
 332                 if (p == NULL)
 333                         return ENOMEM;
 334                 req.sr = p;
 335                 ieee80211_scan_iterate(vap, get_scan_result, &req);
 336                 ireq->i_len = space - req.space;
 337                 error = copyout(p, ireq->i_data, ireq->i_len);
 338                 free(p, M_TEMP);
 339         } else
 340                 ireq->i_len = 0;
 341
 342         return error;
 343 }
 344
 345 struct stainforeq {
 346         struct ieee80211vap *vap;
 347         struct ieee80211req_sta_info *si;
 348         size_t  space;
 349 };
 350
 351 static size_t
 352 sta_space(const struct ieee80211_node *ni, size_t *ielen)
 353 {
 354         *ielen = ni->ni_ies.len;
 355         return roundup(sizeof(struct ieee80211req_sta_info) + *ielen,
 356                       sizeof(uint32_t));
 357 }
 358
 359 static void
 360 get_sta_space(void *arg, struct ieee80211_node *ni)
 361 {
 362         struct stainforeq *req = arg;
 363         size_t ielen;
 364
 365         if (req->vap != ni->ni_vap)
 366                 return;
 367         if (ni->ni_vap->iv_opmode == IEEE80211_M_HOSTAP &&
 368             ni->ni_associd == 0)        /* only associated stations */
 369                 return;
 370         req->space += sta_space(ni, &ielen);
 371 }
 372
 373 static __noinline void
 374 get_sta_info(void *arg, struct ieee80211_node *ni)
 375 {
 376         struct stainforeq *req = arg;
 377         struct ieee80211vap *vap = ni->ni_vap;
 378         struct ieee80211req_sta_info *si;
 379         size_t ielen, len;
 380         uint8_t *cp;
 381
 382         if (req->vap != ni->ni_vap)
 383                 return;
 384         if (vap->iv_opmode == IEEE80211_M_HOSTAP &&
 385             ni->ni_associd == 0)        /* only associated stations */
 386                 return;
 387         if (ni->ni_chan == IEEE80211_CHAN_ANYC) /* XXX bogus entry */
 388                 return;
 389         len = sta_space(ni, &ielen);
 390         if (len > req->space)
 391                 return;
 392         si = req->si;
 393         si->isi_len = len;
 394         si->isi_ie_off = sizeof(struct ieee80211req_sta_info);
 395         si->isi_ie_len = ielen;
 396         si->isi_freq = ni->ni_chan->ic_freq;
 397         si->isi_flags = ni->ni_chan->ic_flags;
 398         si->isi_state = ni->ni_flags;
 399         si->isi_authmode = ni->ni_authmode;
 400         vap->iv_ic->ic_node_getsignal(ni, &si->isi_rssi, &si->isi_noise);
 401         vap->iv_ic->ic_node_getmimoinfo(ni, &si->isi_mimo);
 402         si->isi_capinfo = ni->ni_capinfo;
 403         si->isi_erp = ni->ni_erp;
 404         IEEE80211_ADDR_COPY(si->isi_macaddr, ni->ni_macaddr);
 405         si->isi_nrates = ni->ni_rates.rs_nrates;
 406         if (si->isi_nrates > 15)
 407                 si->isi_nrates = 15;
 408         memcpy(si->isi_rates, ni->ni_rates.rs_rates, si->isi_nrates);
 409         si->isi_txrate = ni->ni_txrate;
 410         if (si->isi_txrate & IEEE80211_RATE_MCS) {
 411                 const struct ieee80211_mcs_rates *mcs =
 412                     &ieee80211_htrates[ni->ni_txrate &~ IEEE80211_RATE_MCS];
 413                 if (IEEE80211_IS_CHAN_HT40(ni->ni_chan)) {
 414                         if (ni->ni_flags & IEEE80211_NODE_SGI40)
 415                                 si->isi_txmbps = mcs->ht40_rate_800ns;
 416                         else
 417                                 si->isi_txmbps = mcs->ht40_rate_400ns;
 418                 } else {
 419                         if (ni->ni_flags & IEEE80211_NODE_SGI20)
 420                                 si->isi_txmbps = mcs->ht20_rate_800ns;
 421                         else
 422                                 si->isi_txmbps = mcs->ht20_rate_400ns;
 423                 }
 424         } else
 425                 si->isi_txmbps = si->isi_txrate;
 426         si->isi_associd = ni->ni_associd;
 427         si->isi_txpower = ni->ni_txpower;
 428         si->isi_vlan = ni->ni_vlan;
 429         if (ni->ni_flags & IEEE80211_NODE_QOS) {
 430                 memcpy(si->isi_txseqs, ni->ni_txseqs, sizeof(ni->ni_txseqs));
 431                 memcpy(si->isi_rxseqs, ni->ni_rxseqs, sizeof(ni->ni_rxseqs));
 432         } else {
 433                 si->isi_txseqs[0] = ni->ni_txseqs[IEEE80211_NONQOS_TID];
 434                 si->isi_rxseqs[0] = ni->ni_rxseqs[IEEE80211_NONQOS_TID];
 435         }
 436         /* NB: leave all cases in case we relax ni_associd == 0 check */
 437         if (ieee80211_node_is_authorized(ni))
 438                 si->isi_inact = vap->iv_inact_run;
 439         else if (ni->ni_associd != 0 ||
 440             (vap->iv_opmode == IEEE80211_M_WDS &&
 441              (vap->iv_flags_ext & IEEE80211_FEXT_WDSLEGACY)))
 442                 si->isi_inact = vap->iv_inact_auth;
 443         else
 444                 si->isi_inact = vap->iv_inact_init;
 445         si->isi_inact = (si->isi_inact - ni->ni_inact) * IEEE80211_INACT_WAIT;
 446         si->isi_localid = ni->ni_mllid;
 447         si->isi_peerid = ni->ni_mlpid;
 448         si->isi_peerstate = ni->ni_mlstate;
 449
 450         if (ielen) {
 451                 cp = ((uint8_t *)si) + si->isi_ie_off;
 452                 memcpy(cp, ni->ni_ies.data, ielen);
 453         }
 454
 455         req->si = (struct ieee80211req_sta_info *)(((uint8_t *)si) + len);
 456         req->space -= len;
 457 }
 458
 459 static __noinline int
 460 getstainfo_common(struct ieee80211vap *vap, struct ieee80211req *ireq,
 461         struct ieee80211_node *ni, size_t off)
 462 {
 463         struct ieee80211com *ic = vap->iv_ic;
 464         struct stainforeq req;
 465         size_t space;
 466         void *p;
 467         int error;
 468
 469         error = 0;
 470         req.space = 0;
 471         req.vap = vap;
 472         if (ni == NULL)
 473                 ieee80211_iterate_nodes(&ic->ic_sta, get_sta_space, &req);
 474         else
 475                 get_sta_space(&req, ni);
 476         if (req.space > ireq->i_len)
 477                 req.space = ireq->i_len;
 478         if (req.space > 0) {
 479                 space = req.space;
 480                 /* XXX M_WAITOK after driver lock released */
 481                 p = malloc(space, M_TEMP, M_NOWAIT | 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(&ic->ic_sta, get_sta_info, &req);
 489                 else
 490                         get_sta_info(&req, ni);
 491                 ireq->i_len = space - req.space;
 492                 error = copyout(p, (uint8_t *) ireq->i_data+off, ireq->i_len);
 493                 free(p, M_TEMP);
 494         } else
 495                 ireq->i_len = 0;
 496 bad:
 497         if (ni != NULL)
 498                 ieee80211_free_node(ni);
 499         return error;
 500 }
 501
 502 static __noinline int
 503 ieee80211_ioctl_getstainfo(struct ieee80211vap *vap, struct ieee80211req *ireq)
 504 {
 505         uint8_t macaddr[IEEE80211_ADDR_LEN];
 506         const size_t off = __offsetof(struct ieee80211req_sta_req, info);
 507         struct ieee80211_node *ni;
 508         int error;
 509
 510         if (ireq->i_len < sizeof(struct ieee80211req_sta_req))
 511                 return EFAULT;
 512         error = copyin(ireq->i_data, macaddr, IEEE80211_ADDR_LEN);
 513         if (error != 0)
 514                 return error;
 515         if (IEEE80211_ADDR_EQ(macaddr, vap->iv_ifp->if_broadcastaddr)) {
 516                 ni = NULL;
 517         } else {
 518                 ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap, macaddr);
 519                 if (ni == NULL)
 520                         return ENOENT;
 521         }
 522         return getstainfo_common(vap, ireq, ni, off);
 523 }
 524
 525 static __noinline int
 526 ieee80211_ioctl_getstatxpow(struct ieee80211vap *vap, struct ieee80211req *ireq)
 527 {
 528         struct ieee80211_node *ni;
 529         struct ieee80211req_sta_txpow txpow;
 530         int error;
 531
 532         if (ireq->i_len != sizeof(txpow))
 533                 return EINVAL;
 534         error = copyin(ireq->i_data, &txpow, sizeof(txpow));
 535         if (error != 0)
 536                 return error;
 537         ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap, txpow.it_macaddr);
 538         if (ni == NULL)
 539                 return ENOENT;
 540         txpow.it_txpow = ni->ni_txpower;
 541         error = copyout(&txpow, ireq->i_data, sizeof(txpow));
 542         ieee80211_free_node(ni);
 543         return error;
 544 }
 545
 546 static __noinline int
 547 ieee80211_ioctl_getwmeparam(struct ieee80211vap *vap, struct ieee80211req *ireq)
 548 {
 549         struct ieee80211com *ic = vap->iv_ic;
 550         struct ieee80211_wme_state *wme = &ic->ic_wme;
 551         struct wmeParams *wmep;
 552         int ac;
 553
 554         if ((ic->ic_caps & IEEE80211_C_WME) == 0)
 555                 return EINVAL;
 556
 557         ac = (ireq->i_len & IEEE80211_WMEPARAM_VAL);
 558         if (ac >= WME_NUM_AC)
 559                 ac = WME_AC_BE;
 560         if (ireq->i_len & IEEE80211_WMEPARAM_BSS)
 561                 wmep = &wme->wme_wmeBssChanParams.cap_wmeParams[ac];
 562         else
 563                 wmep = &wme->wme_wmeChanParams.cap_wmeParams[ac];
 564         switch (ireq->i_type) {
 565         case IEEE80211_IOC_WME_CWMIN:           /* WME: CWmin */
 566                 ireq->i_val = wmep->wmep_logcwmin;
 567                 break;
 568         case IEEE80211_IOC_WME_CWMAX:           /* WME: CWmax */
 569                 ireq->i_val = wmep->wmep_logcwmax;
 570                 break;
 571         case IEEE80211_IOC_WME_AIFS:            /* WME: AIFS */
 572                 ireq->i_val = wmep->wmep_aifsn;
 573                 break;
 574         case IEEE80211_IOC_WME_TXOPLIMIT:       /* WME: txops limit */
 575                 ireq->i_val = wmep->wmep_txopLimit;
 576                 break;
 577         case IEEE80211_IOC_WME_ACM:             /* WME: ACM (bss only) */
 578                 wmep = &wme->wme_wmeBssChanParams.cap_wmeParams[ac];
 579                 ireq->i_val = wmep->wmep_acm;
 580                 break;
 581         case IEEE80211_IOC_WME_ACKPOLICY:       /* WME: ACK policy (!bss only)*/
 582                 wmep = &wme->wme_wmeChanParams.cap_wmeParams[ac];
 583                 ireq->i_val = !wmep->wmep_noackPolicy;
 584                 break;
 585         }
 586         return 0;
 587 }
 588
 589 static __noinline int
 590 ieee80211_ioctl_getmaccmd(struct ieee80211vap *vap, struct ieee80211req *ireq)
 591 {
 592         const struct ieee80211_aclator *acl = vap->iv_acl;
 593
 594         return (acl == NULL ? EINVAL : acl->iac_getioctl(vap, ireq));
 595 }
 596
 597 static __noinline int
 598 ieee80211_ioctl_getcurchan(struct ieee80211vap *vap, struct ieee80211req *ireq)
 599 {
 600         struct ieee80211com *ic = vap->iv_ic;
 601         struct ieee80211_channel *c;
 602
 603         if (ireq->i_len != sizeof(struct ieee80211_channel))
 604                 return EINVAL;
 605         /*
 606          * vap's may have different operating channels when HT is
 607          * in use.  When in RUN state report the vap-specific channel.
 608          * Otherwise return curchan.
 609          */
 610         if (vap->iv_state == IEEE80211_S_RUN)
 611                 c = vap->iv_bss->ni_chan;
 612         else
 613                 c = ic->ic_curchan;
 614         return copyout(c, ireq->i_data, sizeof(*c));
 615 }
 616
 617 static int
 618 getappie(const struct ieee80211_appie *aie, struct ieee80211req *ireq)
 619 {
 620         if (aie == NULL)
 621                 return EINVAL;
 622         /* NB: truncate, caller can check length */
 623         if (ireq->i_len > aie->ie_len)
 624                 ireq->i_len = aie->ie_len;
 625         return copyout(aie->ie_data, ireq->i_data, ireq->i_len);
 626 }
 627
 628 static int
 629 ieee80211_ioctl_getappie(struct ieee80211vap *vap, struct ieee80211req *ireq)
 630 {
 631         uint8_t fc0;
 632
 633         fc0 = ireq->i_val & 0xff;
 634         if ((fc0 & IEEE80211_FC0_TYPE_MASK) != IEEE80211_FC0_TYPE_MGT)
 635                 return EINVAL;
 636         /* NB: could check iv_opmode and reject but hardly worth the effort */
 637         switch (fc0 & IEEE80211_FC0_SUBTYPE_MASK) {
 638         case IEEE80211_FC0_SUBTYPE_BEACON:
 639                 return getappie(vap->iv_appie_beacon, ireq);
 640         case IEEE80211_FC0_SUBTYPE_PROBE_RESP:
 641                 return getappie(vap->iv_appie_proberesp, ireq);
 642         case IEEE80211_FC0_SUBTYPE_ASSOC_RESP:
 643                 return getappie(vap->iv_appie_assocresp, ireq);
 644         case IEEE80211_FC0_SUBTYPE_PROBE_REQ:
 645                 return getappie(vap->iv_appie_probereq, ireq);
 646         case IEEE80211_FC0_SUBTYPE_ASSOC_REQ:
 647                 return getappie(vap->iv_appie_assocreq, ireq);
 648         case IEEE80211_FC0_SUBTYPE_BEACON|IEEE80211_FC0_SUBTYPE_PROBE_RESP:
 649                 return getappie(vap->iv_appie_wpa, ireq);
 650         }
 651         return EINVAL;
 652 }
 653
 654 static __noinline int
 655 ieee80211_ioctl_getregdomain(struct ieee80211vap *vap,
 656         const struct ieee80211req *ireq)
 657 {
 658         struct ieee80211com *ic = vap->iv_ic;
 659
 660         if (ireq->i_len != sizeof(ic->ic_regdomain))
 661                 return EINVAL;
 662         return copyout(&ic->ic_regdomain, ireq->i_data,
 663             sizeof(ic->ic_regdomain));
 664 }
 665
 666 static __noinline int
 667 ieee80211_ioctl_getroam(struct ieee80211vap *vap,
 668         const struct ieee80211req *ireq)
 669 {
 670         size_t len = ireq->i_len;
 671         /* NB: accept short requests for backwards compat */
 672         if (len > sizeof(vap->iv_roamparms))
 673                 len = sizeof(vap->iv_roamparms);
 674         return copyout(vap->iv_roamparms, ireq->i_data, len);
 675 }
 676
 677 static __noinline int
 678 ieee80211_ioctl_gettxparams(struct ieee80211vap *vap,
 679         const struct ieee80211req *ireq)
 680 {
 681         size_t len = ireq->i_len;
 682         /* NB: accept short requests for backwards compat */
 683         if (len > sizeof(vap->iv_txparms))
 684                 len = sizeof(vap->iv_txparms);
 685         return copyout(vap->iv_txparms, ireq->i_data, len);
 686 }
 687
 688 static __noinline int
 689 ieee80211_ioctl_getdevcaps(struct ieee80211com *ic,
 690         const struct ieee80211req *ireq)
 691 {
 692         struct ieee80211_devcaps_req *dc;
 693         struct ieee80211req_chaninfo *ci;
 694         int maxchans, error;
 695
 696         maxchans = 1 + ((ireq->i_len - sizeof(struct ieee80211_devcaps_req)) /
 697             sizeof(struct ieee80211_channel));
 698         /* NB: require 1 so we know ic_nchans is accessible */
 699         if (maxchans < 1)
 700                 return EINVAL;
 701         /* constrain max request size, 2K channels is ~24Kbytes */
 702         if (maxchans > 2048)
 703                 maxchans = 2048;
 704         dc = (struct ieee80211_devcaps_req *)
 705             malloc(IEEE80211_DEVCAPS_SIZE(maxchans), M_TEMP, M_NOWAIT | M_ZERO);
 706         if (dc == NULL)
 707                 return ENOMEM;
 708         dc->dc_drivercaps = ic->ic_caps;
 709         dc->dc_cryptocaps = ic->ic_cryptocaps;
 710         dc->dc_htcaps = ic->ic_htcaps;
 711         ci = &dc->dc_chaninfo;
 712         ic->ic_getradiocaps(ic, maxchans, &ci->ic_nchans, ci->ic_chans);
 713         KASSERT(ci->ic_nchans <= maxchans,
 714             ("nchans %d maxchans %d", ci->ic_nchans, maxchans));
 715         ieee80211_sort_channels(ci->ic_chans, ci->ic_nchans);
 716         error = copyout(dc, ireq->i_data, IEEE80211_DEVCAPS_SPACE(dc));
 717         free(dc, M_TEMP);
 718         return error;
 719 }
 720
 721 static __noinline int
 722 ieee80211_ioctl_getstavlan(struct ieee80211vap *vap, struct ieee80211req *ireq)
 723 {
 724         struct ieee80211_node *ni;
 725         struct ieee80211req_sta_vlan vlan;
 726         int error;
 727
 728         if (ireq->i_len != sizeof(vlan))
 729                 return EINVAL;
 730         error = copyin(ireq->i_data, &vlan, sizeof(vlan));
 731         if (error != 0)
 732                 return error;
 733         if (!IEEE80211_ADDR_EQ(vlan.sv_macaddr, zerobssid)) {
 734                 ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap,
 735                     vlan.sv_macaddr);
 736                 if (ni == NULL)
 737                         return ENOENT;
 738         } else
 739                 ni = ieee80211_ref_node(vap->iv_bss);
 740         vlan.sv_vlan = ni->ni_vlan;
 741         error = copyout(&vlan, ireq->i_data, sizeof(vlan));
 742         ieee80211_free_node(ni);
 743         return error;
 744 }
 745
 746 /*
 747  * Dummy ioctl get handler so the linker set is defined.
 748  */
 749 static int
 750 dummy_ioctl_get(struct ieee80211vap *vap, struct ieee80211req *ireq)
 751 {
 752         return ENOSYS;
 753 }
 754 IEEE80211_IOCTL_GET(dummy, dummy_ioctl_get);
 755
 756 static int
 757 ieee80211_ioctl_getdefault(struct ieee80211vap *vap, struct ieee80211req *ireq)
 758 {
 759         ieee80211_ioctl_getfunc * const *get;
 760         int error;
 761
 762         SET_FOREACH(get, ieee80211_ioctl_getset) {
 763                 error = (*get)(vap, ireq);
 764                 if (error != ENOSYS)
 765                         return error;
 766         }
 767         return EINVAL;
 768 }
 769
 770 /*
 771  * When building the kernel with -O2 on the i386 architecture, gcc
 772  * seems to want to inline this function into ieee80211_ioctl()
 773  * (which is the only routine that calls it). When this happens,
 774  * ieee80211_ioctl() ends up consuming an additional 2K of stack
 775  * space. (Exactly why it needs so much is unclear.) The problem
 776  * is that it's possible for ieee80211_ioctl() to invoke other
 777  * routines (including driver init functions) which could then find
 778  * themselves perilously close to exhausting the stack.
 779  *
 780  * To avoid this, we deliberately prevent gcc from inlining this
 781  * routine. Another way to avoid this is to use less agressive
 782  * optimization when compiling this file (i.e. -O instead of -O2)
 783  * but special-casing the compilation of this one module in the
 784  * build system would be awkward.
 785  */
 786 static __noinline int
 787 ieee80211_ioctl_get80211(struct ieee80211vap *vap, u_long cmd,
 788     struct ieee80211req *ireq)
 789 {
 790 #define MS(_v, _f)      (((_v) & _f) >> _f##_S)
 791         struct ieee80211com *ic = vap->iv_ic;
 792         u_int kid, len;
 793         uint8_t tmpkey[IEEE80211_KEYBUF_SIZE];
 794         char tmpssid[IEEE80211_NWID_LEN];
 795         int error = 0;
 796
 797         switch (ireq->i_type) {
 798         case IEEE80211_IOC_SSID:
 799                 switch (vap->iv_state) {
 800                 case IEEE80211_S_INIT:
 801                 case IEEE80211_S_SCAN:
 802                         ireq->i_len = vap->iv_des_ssid[0].len;
 803                         memcpy(tmpssid, vap->iv_des_ssid[0].ssid, ireq->i_len);
 804                         break;
 805                 default:
 806                         ireq->i_len = vap->iv_bss->ni_esslen;
 807                         memcpy(tmpssid, vap->iv_bss->ni_essid, ireq->i_len);
 808                         break;
 809                 }
 810                 error = copyout(tmpssid, ireq->i_data, ireq->i_len);
 811                 break;
 812         case IEEE80211_IOC_NUMSSIDS:
 813                 ireq->i_val = 1;
 814                 break;
 815         case IEEE80211_IOC_WEP:
 816                 if ((vap->iv_flags & IEEE80211_F_PRIVACY) == 0)
 817                         ireq->i_val = IEEE80211_WEP_OFF;
 818                 else if (vap->iv_flags & IEEE80211_F_DROPUNENC)
 819                         ireq->i_val = IEEE80211_WEP_ON;
 820                 else
 821                         ireq->i_val = IEEE80211_WEP_MIXED;
 822                 break;
 823         case IEEE80211_IOC_WEPKEY:
 824                 kid = (u_int) ireq->i_val;
 825                 if (kid >= IEEE80211_WEP_NKID)
 826                         return EINVAL;
 827                 len = (u_int) vap->iv_nw_keys[kid].wk_keylen;
 828                 /* NB: only root can read WEP keys */
 829                 if (priv_check(curthread, PRIV_NET80211_GETKEY) == 0) {
 830                         bcopy(vap->iv_nw_keys[kid].wk_key, tmpkey, len);
 831                 } else {
 832                         bzero(tmpkey, len);
 833                 }
 834                 ireq->i_len = len;
 835                 error = copyout(tmpkey, ireq->i_data, len);
 836                 break;
 837         case IEEE80211_IOC_NUMWEPKEYS:
 838                 ireq->i_val = IEEE80211_WEP_NKID;
 839                 break;
 840         case IEEE80211_IOC_WEPTXKEY:
 841                 ireq->i_val = vap->iv_def_txkey;
 842                 break;
 843         case IEEE80211_IOC_AUTHMODE:
 844                 if (vap->iv_flags & IEEE80211_F_WPA)
 845                         ireq->i_val = IEEE80211_AUTH_WPA;
 846                 else
 847                         ireq->i_val = vap->iv_bss->ni_authmode;
 848                 break;
 849         case IEEE80211_IOC_CHANNEL:
 850                 ireq->i_val = ieee80211_chan2ieee(ic, ic->ic_curchan);
 851                 break;
 852         case IEEE80211_IOC_POWERSAVE:
 853                 if (vap->iv_flags & IEEE80211_F_PMGTON)
 854                         ireq->i_val = IEEE80211_POWERSAVE_ON;
 855                 else
 856                         ireq->i_val = IEEE80211_POWERSAVE_OFF;
 857                 break;
 858         case IEEE80211_IOC_POWERSAVESLEEP:
 859                 ireq->i_val = ic->ic_lintval;
 860                 break;
 861         case IEEE80211_IOC_RTSTHRESHOLD:
 862                 ireq->i_val = vap->iv_rtsthreshold;
 863                 break;
 864         case IEEE80211_IOC_PROTMODE:
 865                 ireq->i_val = ic->ic_protmode;
 866                 break;
 867         case IEEE80211_IOC_TXPOWER:
 868                 /*
 869                  * Tx power limit is the min of max regulatory
 870                  * power, any user-set limit, and the max the
 871                  * radio can do.
 872                  */
 873                 ireq->i_val = 2*ic->ic_curchan->ic_maxregpower;
 874                 if (ireq->i_val > ic->ic_txpowlimit)
 875                         ireq->i_val = ic->ic_txpowlimit;
 876                 if (ireq->i_val > ic->ic_curchan->ic_maxpower)
 877                         ireq->i_val = ic->ic_curchan->ic_maxpower;
 878                 break;
 879         case IEEE80211_IOC_WPA:
 880                 switch (vap->iv_flags & IEEE80211_F_WPA) {
 881                 case IEEE80211_F_WPA1:
 882                         ireq->i_val = 1;
 883                         break;
 884                 case IEEE80211_F_WPA2:
 885                         ireq->i_val = 2;
 886                         break;
 887                 case IEEE80211_F_WPA1 | IEEE80211_F_WPA2:
 888                         ireq->i_val = 3;
 889                         break;
 890                 default:
 891                         ireq->i_val = 0;
 892                         break;
 893                 }
 894                 break;
 895         case IEEE80211_IOC_CHANLIST:
 896                 error = ieee80211_ioctl_getchanlist(vap, ireq);
 897                 break;
 898         case IEEE80211_IOC_ROAMING:
 899                 ireq->i_val = vap->iv_roaming;
 900                 break;
 901         case IEEE80211_IOC_PRIVACY:
 902                 ireq->i_val = (vap->iv_flags & IEEE80211_F_PRIVACY) != 0;
 903                 break;
 904         case IEEE80211_IOC_DROPUNENCRYPTED:
 905                 ireq->i_val = (vap->iv_flags & IEEE80211_F_DROPUNENC) != 0;
 906                 break;
 907         case IEEE80211_IOC_COUNTERMEASURES:
 908                 ireq->i_val = (vap->iv_flags & IEEE80211_F_COUNTERM) != 0;
 909                 break;
 910         case IEEE80211_IOC_WME:
 911                 ireq->i_val = (vap->iv_flags & IEEE80211_F_WME) != 0;
 912                 break;
 913         case IEEE80211_IOC_HIDESSID:
 914                 ireq->i_val = (vap->iv_flags & IEEE80211_F_HIDESSID) != 0;
 915                 break;
 916         case IEEE80211_IOC_APBRIDGE:
 917                 ireq->i_val = (vap->iv_flags & IEEE80211_F_NOBRIDGE) == 0;
 918                 break;
 919         case IEEE80211_IOC_WPAKEY:
 920                 error = ieee80211_ioctl_getkey(vap, ireq);
 921                 break;
 922         case IEEE80211_IOC_CHANINFO:
 923                 error = ieee80211_ioctl_getchaninfo(vap, ireq);
 924                 break;
 925         case IEEE80211_IOC_BSSID:
 926                 if (ireq->i_len != IEEE80211_ADDR_LEN)
 927                         return EINVAL;
 928                 if (vap->iv_state == IEEE80211_S_RUN) {
 929                         error = copyout(vap->iv_opmode == IEEE80211_M_WDS ?
 930                             vap->iv_bss->ni_macaddr : vap->iv_bss->ni_bssid,
 931                             ireq->i_data, ireq->i_len);
 932                 } else
 933                         error = copyout(vap->iv_des_bssid, ireq->i_data,
 934                             ireq->i_len);
 935                 break;
 936         case IEEE80211_IOC_WPAIE:
 937                 error = ieee80211_ioctl_getwpaie(vap, ireq, ireq->i_type);
 938                 break;
 939         case IEEE80211_IOC_WPAIE2:
 940                 error = ieee80211_ioctl_getwpaie(vap, ireq, ireq->i_type);
 941                 break;
 942         case IEEE80211_IOC_SCAN_RESULTS:
 943                 error = ieee80211_ioctl_getscanresults(vap, ireq);
 944                 break;
 945         case IEEE80211_IOC_STA_STATS:
 946                 error = ieee80211_ioctl_getstastats(vap, ireq);
 947                 break;
 948         case IEEE80211_IOC_TXPOWMAX:
 949                 ireq->i_val = vap->iv_bss->ni_txpower;
 950                 break;
 951         case IEEE80211_IOC_STA_TXPOW:
 952                 error = ieee80211_ioctl_getstatxpow(vap, ireq);
 953                 break;
 954         case IEEE80211_IOC_STA_INFO:
 955                 error = ieee80211_ioctl_getstainfo(vap, ireq);
 956                 break;
 957         case IEEE80211_IOC_WME_CWMIN:           /* WME: CWmin */
 958         case IEEE80211_IOC_WME_CWMAX:           /* WME: CWmax */
 959         case IEEE80211_IOC_WME_AIFS:            /* WME: AIFS */
 960         case IEEE80211_IOC_WME_TXOPLIMIT:       /* WME: txops limit */
 961         case IEEE80211_IOC_WME_ACM:             /* WME: ACM (bss only) */
 962         case IEEE80211_IOC_WME_ACKPOLICY:       /* WME: ACK policy (bss only) */
 963                 error = ieee80211_ioctl_getwmeparam(vap, ireq);
 964                 break;
 965         case IEEE80211_IOC_DTIM_PERIOD:
 966                 ireq->i_val = vap->iv_dtim_period;
 967                 break;
 968         case IEEE80211_IOC_BEACON_INTERVAL:
 969                 /* NB: get from ic_bss for station mode */
 970                 ireq->i_val = vap->iv_bss->ni_intval;
 971                 break;
 972         case IEEE80211_IOC_PUREG:
 973                 ireq->i_val = (vap->iv_flags & IEEE80211_F_PUREG) != 0;
 974                 break;
 975         case IEEE80211_IOC_QUIET:
 976                 ireq->i_val = vap->iv_quiet;
 977                 break;
 978         case IEEE80211_IOC_QUIET_COUNT:
 979                 ireq->i_val = vap->iv_quiet_count;
 980                 break;
 981         case IEEE80211_IOC_QUIET_PERIOD:
 982                 ireq->i_val = vap->iv_quiet_period;
 983                 break;
 984         case IEEE80211_IOC_QUIET_DUR:
 985                 ireq->i_val = vap->iv_quiet_duration;
 986                 break;
 987         case IEEE80211_IOC_QUIET_OFFSET:
 988                 ireq->i_val = vap->iv_quiet_offset;
 989                 break;
 990         case IEEE80211_IOC_BGSCAN:
 991                 ireq->i_val = (vap->iv_flags & IEEE80211_F_BGSCAN) != 0;
 992                 break;
 993         case IEEE80211_IOC_BGSCAN_IDLE:
 994                 ireq->i_val = vap->iv_bgscanidle*hz/1000;       /* ms */
 995                 break;
 996         case IEEE80211_IOC_BGSCAN_INTERVAL:
 997                 ireq->i_val = vap->iv_bgscanintvl/hz;           /* seconds */
 998                 break;
 999         case IEEE80211_IOC_SCANVALID:
1000                 ireq->i_val = vap->iv_scanvalid/hz;             /* seconds */
1001                 break;
1002         case IEEE80211_IOC_FRAGTHRESHOLD:
1003                 ireq->i_val = vap->iv_fragthreshold;
1004                 break;
1005         case IEEE80211_IOC_MACCMD:
1006                 error = ieee80211_ioctl_getmaccmd(vap, ireq);
1007                 break;
1008         case IEEE80211_IOC_BURST:
1009                 ireq->i_val = (vap->iv_flags & IEEE80211_F_BURST) != 0;
1010                 break;
1011         case IEEE80211_IOC_BMISSTHRESHOLD:
1012                 ireq->i_val = vap->iv_bmissthreshold;
1013                 break;
1014         case IEEE80211_IOC_CURCHAN:
1015                 error = ieee80211_ioctl_getcurchan(vap, ireq);
1016                 break;
1017         case IEEE80211_IOC_SHORTGI:
1018                 ireq->i_val = 0;
1019                 if (vap->iv_flags_ht & IEEE80211_FHT_SHORTGI20)
1020                         ireq->i_val |= IEEE80211_HTCAP_SHORTGI20;
1021                 if (vap->iv_flags_ht & IEEE80211_FHT_SHORTGI40)
1022                         ireq->i_val |= IEEE80211_HTCAP_SHORTGI40;
1023                 break;
1024         case IEEE80211_IOC_AMPDU:
1025                 ireq->i_val = 0;
1026                 if (vap->iv_flags_ht & IEEE80211_FHT_AMPDU_TX)
1027                         ireq->i_val |= 1;
1028                 if (vap->iv_flags_ht & IEEE80211_FHT_AMPDU_RX)
1029                         ireq->i_val |= 2;
1030                 break;
1031         case IEEE80211_IOC_AMPDU_LIMIT:
1032                 if (vap->iv_opmode == IEEE80211_M_HOSTAP)
1033                         ireq->i_val = vap->iv_ampdu_rxmax;
1034                 else if (vap->iv_state == IEEE80211_S_RUN)
1035                         ireq->i_val = MS(vap->iv_bss->ni_htparam,
1036                             IEEE80211_HTCAP_MAXRXAMPDU);
1037                 else
1038                         ireq->i_val = vap->iv_ampdu_limit;
1039                 break;
1040         case IEEE80211_IOC_AMPDU_DENSITY:
1041                 if (vap->iv_opmode == IEEE80211_M_STA &&
1042                     vap->iv_state == IEEE80211_S_RUN)
1043                         ireq->i_val = MS(vap->iv_bss->ni_htparam,
1044                             IEEE80211_HTCAP_MPDUDENSITY);
1045                 else
1046                         ireq->i_val = vap->iv_ampdu_density;
1047                 break;
1048         case IEEE80211_IOC_AMSDU:
1049                 ireq->i_val = 0;
1050                 if (vap->iv_flags_ht & IEEE80211_FHT_AMSDU_TX)
1051                         ireq->i_val |= 1;
1052                 if (vap->iv_flags_ht & IEEE80211_FHT_AMSDU_RX)
1053                         ireq->i_val |= 2;
1054                 break;
1055         case IEEE80211_IOC_AMSDU_LIMIT:
1056                 ireq->i_val = vap->iv_amsdu_limit;      /* XXX truncation? */
1057                 break;
1058         case IEEE80211_IOC_PUREN:
1059                 ireq->i_val = (vap->iv_flags_ht & IEEE80211_FHT_PUREN) != 0;
1060                 break;
1061         case IEEE80211_IOC_DOTH:
1062                 ireq->i_val = (vap->iv_flags & IEEE80211_F_DOTH) != 0;
1063                 break;
1064         case IEEE80211_IOC_REGDOMAIN:
1065                 error = ieee80211_ioctl_getregdomain(vap, ireq);
1066                 break;
1067         case IEEE80211_IOC_ROAM:
1068                 error = ieee80211_ioctl_getroam(vap, ireq);
1069                 break;
1070         case IEEE80211_IOC_TXPARAMS:
1071                 error = ieee80211_ioctl_gettxparams(vap, ireq);
1072                 break;
1073         case IEEE80211_IOC_HTCOMPAT:
1074                 ireq->i_val = (vap->iv_flags_ht & IEEE80211_FHT_HTCOMPAT) != 0;
1075                 break;
1076         case IEEE80211_IOC_DWDS:
1077                 ireq->i_val = (vap->iv_flags & IEEE80211_F_DWDS) != 0;
1078                 break;
1079         case IEEE80211_IOC_INACTIVITY:
1080                 ireq->i_val = (vap->iv_flags_ext & IEEE80211_FEXT_INACT) != 0;
1081                 break;
1082         case IEEE80211_IOC_APPIE:
1083                 error = ieee80211_ioctl_getappie(vap, ireq);
1084                 break;
1085         case IEEE80211_IOC_WPS:
1086                 ireq->i_val = (vap->iv_flags_ext & IEEE80211_FEXT_WPS) != 0;
1087                 break;
1088         case IEEE80211_IOC_TSN:
1089                 ireq->i_val = (vap->iv_flags_ext & IEEE80211_FEXT_TSN) != 0;
1090                 break;
1091         case IEEE80211_IOC_DFS:
1092                 ireq->i_val = (vap->iv_flags_ext & IEEE80211_FEXT_DFS) != 0;
1093                 break;
1094         case IEEE80211_IOC_DOTD:
1095                 ireq->i_val = (vap->iv_flags_ext & IEEE80211_FEXT_DOTD) != 0;
1096                 break;
1097         case IEEE80211_IOC_DEVCAPS:
1098                 error = ieee80211_ioctl_getdevcaps(ic, ireq);
1099                 break;
1100         case IEEE80211_IOC_HTPROTMODE:
1101                 ireq->i_val = ic->ic_htprotmode;
1102                 break;
1103         case IEEE80211_IOC_HTCONF:
1104                 if (vap->iv_flags_ht & IEEE80211_FHT_HT) {
1105                         ireq->i_val = 1;
1106                         if (vap->iv_flags_ht & IEEE80211_FHT_USEHT40)
1107                                 ireq->i_val |= 2;
1108                 } else
1109                         ireq->i_val = 0;
1110                 break;
1111         case IEEE80211_IOC_STA_VLAN:
1112                 error = ieee80211_ioctl_getstavlan(vap, ireq);
1113                 break;
1114         case IEEE80211_IOC_SMPS:
1115                 if (vap->iv_opmode == IEEE80211_M_STA &&
1116                     vap->iv_state == IEEE80211_S_RUN) {
1117                         if (vap->iv_bss->ni_flags & IEEE80211_NODE_MIMO_RTS)
1118                                 ireq->i_val = IEEE80211_HTCAP_SMPS_DYNAMIC;
1119                         else if (vap->iv_bss->ni_flags & IEEE80211_NODE_MIMO_PS)
1120                                 ireq->i_val = IEEE80211_HTCAP_SMPS_ENA;
1121                         else
1122                                 ireq->i_val = IEEE80211_HTCAP_SMPS_OFF;
1123                 } else
1124                         ireq->i_val = vap->iv_htcaps & IEEE80211_HTCAP_SMPS;
1125                 break;
1126         case IEEE80211_IOC_RIFS:
1127                 if (vap->iv_opmode == IEEE80211_M_STA &&
1128                     vap->iv_state == IEEE80211_S_RUN)
1129                         ireq->i_val =
1130                             (vap->iv_bss->ni_flags & IEEE80211_NODE_RIFS) != 0;
1131                 else
1132                         ireq->i_val =
1133                             (vap->iv_flags_ht & IEEE80211_FHT_RIFS) != 0;
1134                 break;
1135         default:
1136                 error = ieee80211_ioctl_getdefault(vap, ireq);
1137                 break;
1138         }
1139         return error;
1140 #undef MS
1141 }
1142
1143 static __noinline int
1144 ieee80211_ioctl_setkey(struct ieee80211vap *vap, struct ieee80211req *ireq)
1145 {
1146         struct ieee80211req_key ik;
1147         struct ieee80211_node *ni;
1148         struct ieee80211_key *wk;
1149         uint16_t kid;
1150         int error, i;
1151
1152         if (ireq->i_len != sizeof(ik))
1153                 return EINVAL;
1154         error = copyin(ireq->i_data, &ik, sizeof(ik));
1155         if (error)
1156                 return error;
1157         /* NB: cipher support is verified by ieee80211_crypt_newkey */
1158         /* NB: this also checks ik->ik_keylen > sizeof(wk->wk_key) */
1159         if (ik.ik_keylen > sizeof(ik.ik_keydata))
1160                 return E2BIG;
1161         kid = ik.ik_keyix;
1162         if (kid == IEEE80211_KEYIX_NONE) {
1163                 /* XXX unicast keys currently must be tx/rx */
1164                 if (ik.ik_flags != (IEEE80211_KEY_XMIT | IEEE80211_KEY_RECV))
1165                         return EINVAL;
1166                 if (vap->iv_opmode == IEEE80211_M_STA) {
1167                         ni = ieee80211_ref_node(vap->iv_bss);
1168                         if (!IEEE80211_ADDR_EQ(ik.ik_macaddr, ni->ni_bssid)) {
1169                                 ieee80211_free_node(ni);
1170                                 return EADDRNOTAVAIL;
1171                         }
1172                 } else {
1173                         ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap,
1174                                 ik.ik_macaddr);
1175                         if (ni == NULL)
1176                                 return ENOENT;
1177                 }
1178                 wk = &ni->ni_ucastkey;
1179         } else {
1180                 if (kid >= IEEE80211_WEP_NKID)
1181                         return EINVAL;
1182                 wk = &vap->iv_nw_keys[kid];
1183                 /*
1184                  * Global slots start off w/o any assigned key index.
1185                  * Force one here for consistency with IEEE80211_IOC_WEPKEY.
1186                  */
1187                 if (wk->wk_keyix == IEEE80211_KEYIX_NONE)
1188                         wk->wk_keyix = kid;
1189                 ni = NULL;
1190         }
1191         error = 0;
1192         ieee80211_key_update_begin(vap);
1193         if (ieee80211_crypto_newkey(vap, ik.ik_type, ik.ik_flags, wk)) {
1194                 wk->wk_keylen = ik.ik_keylen;
1195                 /* NB: MIC presence is implied by cipher type */
1196                 if (wk->wk_keylen > IEEE80211_KEYBUF_SIZE)
1197                         wk->wk_keylen = IEEE80211_KEYBUF_SIZE;
1198                 for (i = 0; i < IEEE80211_TID_SIZE; i++)
1199                         wk->wk_keyrsc[i] = ik.ik_keyrsc;
1200                 wk->wk_keytsc = 0;                      /* new key, reset */
1201                 memset(wk->wk_key, 0, sizeof(wk->wk_key));
1202                 memcpy(wk->wk_key, ik.ik_keydata, ik.ik_keylen);
1203                 IEEE80211_ADDR_COPY(wk->wk_macaddr,
1204                     ni != NULL ?  ni->ni_macaddr : ik.ik_macaddr);
1205                 if (!ieee80211_crypto_setkey(vap, wk))
1206                         error = EIO;
1207                 else if ((ik.ik_flags & IEEE80211_KEY_DEFAULT))
1208                         vap->iv_def_txkey = kid;
1209         } else
1210                 error = ENXIO;
1211         ieee80211_key_update_end(vap);
1212         if (ni != NULL)
1213                 ieee80211_free_node(ni);
1214         return error;
1215 }
1216
1217 static __noinline int
1218 ieee80211_ioctl_delkey(struct ieee80211vap *vap, struct ieee80211req *ireq)
1219 {
1220         struct ieee80211req_del_key dk;
1221         int kid, error;
1222
1223         if (ireq->i_len != sizeof(dk))
1224                 return EINVAL;
1225         error = copyin(ireq->i_data, &dk, sizeof(dk));
1226         if (error)
1227                 return error;
1228         kid = dk.idk_keyix;
1229         /* XXX uint8_t -> uint16_t */
1230         if (dk.idk_keyix == (uint8_t) IEEE80211_KEYIX_NONE) {
1231                 struct ieee80211_node *ni;
1232
1233                 if (vap->iv_opmode == IEEE80211_M_STA) {
1234                         ni = ieee80211_ref_node(vap->iv_bss);
1235                         if (!IEEE80211_ADDR_EQ(dk.idk_macaddr, ni->ni_bssid)) {
1236                                 ieee80211_free_node(ni);
1237                                 return EADDRNOTAVAIL;
1238                         }
1239                 } else {
1240                         ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap,
1241                                 dk.idk_macaddr);
1242                         if (ni == NULL)
1243                                 return ENOENT;
1244                 }
1245                 /* XXX error return */
1246                 ieee80211_node_delucastkey(ni);
1247                 ieee80211_free_node(ni);
1248         } else {
1249                 if (kid >= IEEE80211_WEP_NKID)
1250                         return EINVAL;
1251                 /* XXX error return */
1252                 ieee80211_crypto_delkey(vap, &vap->iv_nw_keys[kid]);
1253         }
1254         return 0;
1255 }
1256
1257 struct mlmeop {
1258         struct ieee80211vap *vap;
1259         int     op;
1260         int     reason;
1261 };
1262
1263 static void
1264 mlmedebug(struct ieee80211vap *vap, const uint8_t mac[IEEE80211_ADDR_LEN],
1265         int op, int reason)
1266 {
1267 #ifdef IEEE80211_DEBUG
1268         static const struct {
1269                 int mask;
1270                 const char *opstr;
1271         } ops[] = {
1272                 { 0, "op#0" },
1273                 { IEEE80211_MSG_IOCTL | IEEE80211_MSG_STATE |
1274                   IEEE80211_MSG_ASSOC, "assoc" },
1275                 { IEEE80211_MSG_IOCTL | IEEE80211_MSG_STATE |
1276                   IEEE80211_MSG_ASSOC, "disassoc" },
1277                 { IEEE80211_MSG_IOCTL | IEEE80211_MSG_STATE |
1278                   IEEE80211_MSG_AUTH, "deauth" },
1279                 { IEEE80211_MSG_IOCTL | IEEE80211_MSG_STATE |
1280                   IEEE80211_MSG_AUTH, "authorize" },
1281                 { IEEE80211_MSG_IOCTL | IEEE80211_MSG_STATE |
1282                   IEEE80211_MSG_AUTH, "unauthorize" },
1283         };
1284
1285         if (op == IEEE80211_MLME_AUTH) {
1286                 IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_IOCTL |
1287                     IEEE80211_MSG_STATE | IEEE80211_MSG_AUTH, mac,
1288                     "station authenticate %s via MLME (reason %d)",
1289                     reason == IEEE80211_STATUS_SUCCESS ? "ACCEPT" : "REJECT",
1290                     reason);
1291         } else if (!(IEEE80211_MLME_ASSOC <= op && op <= IEEE80211_MLME_AUTH)) {
1292                 IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_ANY, mac,
1293                     "unknown MLME request %d (reason %d)", op, reason);
1294         } else if (reason == IEEE80211_STATUS_SUCCESS) {
1295                 IEEE80211_NOTE_MAC(vap, ops[op].mask, mac,
1296                     "station %s via MLME", ops[op].opstr);
1297         } else {
1298                 IEEE80211_NOTE_MAC(vap, ops[op].mask, mac,
1299                     "station %s via MLME (reason %d)", ops[op].opstr, reason);
1300         }
1301 #endif /* IEEE80211_DEBUG */
1302 }
1303
1304 static void
1305 domlme(void *arg, struct ieee80211_node *ni)
1306 {
1307         struct mlmeop *mop = arg;
1308         struct ieee80211vap *vap = ni->ni_vap;
1309
1310         if (vap != mop->vap)
1311                 return;
1312         /*
1313          * NB: if ni_associd is zero then the node is already cleaned
1314          * up and we don't need to do this (we're safely holding a
1315          * reference but should otherwise not modify it's state).
1316          */
1317         if (ni->ni_associd == 0)
1318                 return;
1319         mlmedebug(vap, ni->ni_macaddr, mop->op, mop->reason);
1320         if (mop->op == IEEE80211_MLME_DEAUTH) {
1321                 IEEE80211_SEND_MGMT(ni, IEEE80211_FC0_SUBTYPE_DEAUTH,
1322                     mop->reason);
1323         } else {
1324                 IEEE80211_SEND_MGMT(ni, IEEE80211_FC0_SUBTYPE_DISASSOC,
1325                     mop->reason);
1326         }
1327         ieee80211_node_leave(ni);
1328 }
1329
1330 static int
1331 setmlme_dropsta(struct ieee80211vap *vap,
1332         const uint8_t mac[IEEE80211_ADDR_LEN], struct mlmeop *mlmeop)
1333 {
1334         struct ieee80211com *ic = vap->iv_ic;
1335         struct ieee80211_node_table *nt = &ic->ic_sta;
1336         struct ieee80211_node *ni;
1337         int error = 0;
1338
1339         /* NB: the broadcast address means do 'em all */
1340         if (!IEEE80211_ADDR_EQ(mac, ic->ic_ifp->if_broadcastaddr)) {
1341                 IEEE80211_NODE_LOCK(nt);
1342                 ni = ieee80211_find_node_locked(nt, mac);
1343                 if (ni != NULL) {
1344                         domlme(mlmeop, ni);
1345                         ieee80211_free_node(ni);
1346                 } else
1347                         error = ENOENT;
1348                 IEEE80211_NODE_UNLOCK(nt);
1349         } else {
1350                 ieee80211_iterate_nodes(nt, domlme, mlmeop);
1351         }
1352         return error;
1353 }
1354
1355 static __noinline int
1356 setmlme_common(struct ieee80211vap *vap, int op,
1357         const uint8_t mac[IEEE80211_ADDR_LEN], int reason)
1358 {
1359         struct ieee80211com *ic = vap->iv_ic;
1360         struct ieee80211_node_table *nt = &ic->ic_sta;
1361         struct ieee80211_node *ni;
1362         struct mlmeop mlmeop;
1363         int error;
1364
1365         error = 0;
1366         switch (op) {
1367         case IEEE80211_MLME_DISASSOC:
1368         case IEEE80211_MLME_DEAUTH:
1369                 switch (vap->iv_opmode) {
1370                 case IEEE80211_M_STA:
1371                         mlmedebug(vap, vap->iv_bss->ni_macaddr, op, reason);
1372                         /* XXX not quite right */
1373                         ieee80211_new_state(vap, IEEE80211_S_INIT, reason);
1374                         break;
1375                 case IEEE80211_M_HOSTAP:
1376                         mlmeop.vap = vap;
1377                         mlmeop.op = op;
1378                         mlmeop.reason = reason;
1379                         error = setmlme_dropsta(vap, mac, &mlmeop);
1380                         break;
1381                 case IEEE80211_M_WDS:
1382                         /* XXX user app should send raw frame? */
1383                         if (op != IEEE80211_MLME_DEAUTH) {
1384                                 error = EINVAL;
1385                                 break;
1386                         }
1387 #if 0
1388                         /* XXX accept any address, simplifies user code */
1389                         if (!IEEE80211_ADDR_EQ(mac, vap->iv_bss->ni_macaddr)) {
1390                                 error = EINVAL;
1391                                 break;
1392                         }
1393 #endif
1394                         mlmedebug(vap, vap->iv_bss->ni_macaddr, op, reason);
1395                         ni = ieee80211_ref_node(vap->iv_bss);
1396                         IEEE80211_SEND_MGMT(ni,
1397                             IEEE80211_FC0_SUBTYPE_DEAUTH, reason);
1398                         ieee80211_free_node(ni);
1399                         break;
1400                 default:
1401                         error = EINVAL;
1402                         break;
1403                 }
1404                 break;
1405         case IEEE80211_MLME_AUTHORIZE:
1406         case IEEE80211_MLME_UNAUTHORIZE:
1407                 if (vap->iv_opmode != IEEE80211_M_HOSTAP &&
1408                     vap->iv_opmode != IEEE80211_M_WDS) {
1409                         error = EINVAL;
1410                         break;
1411                 }
1412                 IEEE80211_NODE_LOCK(nt);
1413                 ni = ieee80211_find_vap_node_locked(nt, vap, mac);
1414                 if (ni != NULL) {
1415                         mlmedebug(vap, mac, op, reason);
1416                         if (op == IEEE80211_MLME_AUTHORIZE)
1417                                 ieee80211_node_authorize(ni);
1418                         else
1419                                 ieee80211_node_unauthorize(ni);
1420                         ieee80211_free_node(ni);
1421                 } else
1422                         error = ENOENT;
1423                 IEEE80211_NODE_UNLOCK(nt);
1424                 break;
1425         case IEEE80211_MLME_AUTH:
1426                 if (vap->iv_opmode != IEEE80211_M_HOSTAP) {
1427                         error = EINVAL;
1428                         break;
1429                 }
1430                 IEEE80211_NODE_LOCK(nt);
1431                 ni = ieee80211_find_vap_node_locked(nt, vap, mac);
1432                 if (ni != NULL) {
1433                         mlmedebug(vap, mac, op, reason);
1434                         if (reason == IEEE80211_STATUS_SUCCESS) {
1435                                 IEEE80211_SEND_MGMT(ni,
1436                                     IEEE80211_FC0_SUBTYPE_AUTH, 2);
1437                                 /*
1438                                  * For shared key auth, just continue the
1439                                  * exchange.  Otherwise when 802.1x is not in
1440                                  * use mark the port authorized at this point
1441                                  * so traffic can flow.
1442                                  */
1443                                 if (ni->ni_authmode != IEEE80211_AUTH_8021X &&
1444                                     ni->ni_challenge == NULL)
1445                                       ieee80211_node_authorize(ni);
1446                         } else {
1447                                 vap->iv_stats.is_rx_acl++;
1448                                 ieee80211_send_error(ni, ni->ni_macaddr,
1449                                     IEEE80211_FC0_SUBTYPE_AUTH, 2|(reason<<16));
1450                                 ieee80211_node_leave(ni);
1451                         }
1452                         ieee80211_free_node(ni);
1453                 } else
1454                         error = ENOENT;
1455                 IEEE80211_NODE_UNLOCK(nt);
1456                 break;
1457         default:
1458                 error = EINVAL;
1459                 break;
1460         }
1461         return error;
1462 }
1463
1464 struct scanlookup {
1465         const uint8_t *mac;
1466         int esslen;
1467         const uint8_t *essid;
1468         const struct ieee80211_scan_entry *se;
1469 };
1470
1471 /*
1472  * Match mac address and any ssid.
1473  */
1474 static void
1475 mlmelookup(void *arg, const struct ieee80211_scan_entry *se)
1476 {
1477         struct scanlookup *look = arg;
1478
1479         if (!IEEE80211_ADDR_EQ(look->mac, se->se_macaddr))
1480                 return;
1481         if (look->esslen != 0) {
1482                 if (se->se_ssid[1] != look->esslen)
1483                         return;
1484                 if (memcmp(look->essid, se->se_ssid+2, look->esslen))
1485                         return;
1486         }
1487         look->se = se;
1488 }
1489
1490 static __noinline int
1491 setmlme_assoc_sta(struct ieee80211vap *vap,
1492         const uint8_t mac[IEEE80211_ADDR_LEN], int ssid_len,
1493         const uint8_t ssid[IEEE80211_NWID_LEN])
1494 {
1495         struct scanlookup lookup;
1496
1497         KASSERT(vap->iv_opmode == IEEE80211_M_STA,
1498             ("expected opmode STA not %s",
1499             ieee80211_opmode_name[vap->iv_opmode]));
1500
1501         /* NB: this is racey if roaming is !manual */
1502         lookup.se = NULL;
1503         lookup.mac = mac;
1504         lookup.esslen = ssid_len;
1505         lookup.essid = ssid;
1506         ieee80211_scan_iterate(vap, mlmelookup, &lookup);
1507         if (lookup.se == NULL)
1508                 return ENOENT;
1509         mlmedebug(vap, mac, IEEE80211_MLME_ASSOC, 0);
1510         if (!ieee80211_sta_join(vap, lookup.se->se_chan, lookup.se))
1511                 return EIO;             /* XXX unique but could be better */
1512         return 0;
1513 }
1514
1515 static __noinline int
1516 setmlme_assoc_adhoc(struct ieee80211vap *vap,
1517         const uint8_t mac[IEEE80211_ADDR_LEN], int ssid_len,
1518         const uint8_t ssid[IEEE80211_NWID_LEN])
1519 {
1520         struct ieee80211_scan_req sr;
1521
1522         KASSERT(vap->iv_opmode == IEEE80211_M_IBSS ||
1523             vap->iv_opmode == IEEE80211_M_AHDEMO,
1524             ("expected opmode IBSS or AHDEMO not %s",
1525             ieee80211_opmode_name[vap->iv_opmode]));
1526
1527         if (ssid_len == 0)
1528                 return EINVAL;
1529
1530         /* NB: IEEE80211_IOC_SSID call missing for ap_scan=2. */
1531         memset(vap->iv_des_ssid[0].ssid, 0, IEEE80211_NWID_LEN);
1532         vap->iv_des_ssid[0].len = ssid_len;
1533         memcpy(vap->iv_des_ssid[0].ssid, ssid, ssid_len);
1534         vap->iv_des_nssid = 1;
1535
1536         memset(&sr, 0, sizeof(sr));
1537         sr.sr_flags = IEEE80211_IOC_SCAN_ACTIVE | IEEE80211_IOC_SCAN_ONCE;
1538         sr.sr_duration = IEEE80211_IOC_SCAN_FOREVER;
1539         memcpy(sr.sr_ssid[0].ssid, ssid, ssid_len);
1540         sr.sr_ssid[0].len = ssid_len;
1541         sr.sr_nssid = 1;
1542
1543         return ieee80211_scanreq(vap, &sr);
1544 }
1545
1546 static __noinline int
1547 ieee80211_ioctl_setmlme(struct ieee80211vap *vap, struct ieee80211req *ireq)
1548 {
1549         struct ieee80211req_mlme mlme;
1550         int error;
1551
1552         if (ireq->i_len != sizeof(mlme))
1553                 return EINVAL;
1554         error = copyin(ireq->i_data, &mlme, sizeof(mlme));
1555         if (error)
1556                 return error;
1557         if  (vap->iv_opmode == IEEE80211_M_STA &&
1558             mlme.im_op == IEEE80211_MLME_ASSOC)
1559                 return setmlme_assoc_sta(vap, mlme.im_macaddr,
1560                     vap->iv_des_ssid[0].len, vap->iv_des_ssid[0].ssid);
1561         else if (mlme.im_op == IEEE80211_MLME_ASSOC)
1562                 return setmlme_assoc_adhoc(vap, mlme.im_macaddr,
1563                     mlme.im_ssid_len, mlme.im_ssid);
1564         else
1565                 return setmlme_common(vap, mlme.im_op,
1566                     mlme.im_macaddr, mlme.im_reason);
1567 }
1568
1569 static __noinline int
1570 ieee80211_ioctl_macmac(struct ieee80211vap *vap, struct ieee80211req *ireq)
1571 {
1572         uint8_t mac[IEEE80211_ADDR_LEN];
1573         const struct ieee80211_aclator *acl = vap->iv_acl;
1574         int error;
1575
1576         if (ireq->i_len != sizeof(mac))
1577                 return EINVAL;
1578         error = copyin(ireq->i_data, mac, ireq->i_len);
1579         if (error)
1580                 return error;
1581         if (acl == NULL) {
1582                 acl = ieee80211_aclator_get("mac");
1583                 if (acl == NULL || !acl->iac_attach(vap))
1584                         return EINVAL;
1585                 vap->iv_acl = acl;
1586         }
1587         if (ireq->i_type == IEEE80211_IOC_ADDMAC)
1588                 acl->iac_add(vap, mac);
1589         else
1590                 acl->iac_remove(vap, mac);
1591         return 0;
1592 }
1593
1594 static __noinline int
1595 ieee80211_ioctl_setmaccmd(struct ieee80211vap *vap, struct ieee80211req *ireq)
1596 {
1597         const struct ieee80211_aclator *acl = vap->iv_acl;
1598
1599         switch (ireq->i_val) {
1600         case IEEE80211_MACCMD_POLICY_OPEN:
1601         case IEEE80211_MACCMD_POLICY_ALLOW:
1602         case IEEE80211_MACCMD_POLICY_DENY:
1603         case IEEE80211_MACCMD_POLICY_RADIUS:
1604                 if (acl == NULL) {
1605                         acl = ieee80211_aclator_get("mac");
1606                         if (acl == NULL || !acl->iac_attach(vap))
1607                                 return EINVAL;
1608                         vap->iv_acl = acl;
1609                 }
1610                 acl->iac_setpolicy(vap, ireq->i_val);
1611                 break;
1612         case IEEE80211_MACCMD_FLUSH:
1613                 if (acl != NULL)
1614                         acl->iac_flush(vap);
1615                 /* NB: silently ignore when not in use */
1616                 break;
1617         case IEEE80211_MACCMD_DETACH:
1618                 if (acl != NULL) {
1619                         vap->iv_acl = NULL;
1620                         acl->iac_detach(vap);
1621                 }
1622                 break;
1623         default:
1624                 if (acl == NULL)
1625                         return EINVAL;
1626                 else
1627                         return acl->iac_setioctl(vap, ireq);
1628         }
1629         return 0;
1630 }
1631
1632 static __noinline int
1633 ieee80211_ioctl_setchanlist(struct ieee80211vap *vap, struct ieee80211req *ireq)
1634 {
1635         struct ieee80211com *ic = vap->iv_ic;
1636         uint8_t *chanlist, *list;
1637         int i, nchan, maxchan, error;
1638
1639         if (ireq->i_len > sizeof(ic->ic_chan_active))
1640                 ireq->i_len = sizeof(ic->ic_chan_active);
1641         list = malloc(ireq->i_len + IEEE80211_CHAN_BYTES, M_TEMP,
1642             M_NOWAIT | M_ZERO);
1643         if (list == NULL)
1644                 return ENOMEM;
1645         error = copyin(ireq->i_data, list, ireq->i_len);
1646         if (error) {
1647                 free(list, M_TEMP);
1648                 return error;
1649         }
1650         nchan = 0;
1651         chanlist = list + ireq->i_len;          /* NB: zero'd already */
1652         maxchan = ireq->i_len * NBBY;
1653         for (i = 0; i < ic->ic_nchans; i++) {
1654                 const struct ieee80211_channel *c = &ic->ic_channels[i];
1655                 /*
1656                  * Calculate the intersection of the user list and the
1657                  * available channels so users can do things like specify
1658                  * 1-255 to get all available channels.
1659                  */
1660                 if (c->ic_ieee < maxchan && isset(list, c->ic_ieee)) {
1661                         setbit(chanlist, c->ic_ieee);
1662                         nchan++;
1663                 }
1664         }
1665         if (nchan == 0) {
1666                 free(list, M_TEMP);
1667                 return EINVAL;
1668         }
1669         if (ic->ic_bsschan != IEEE80211_CHAN_ANYC &&    /* XXX */
1670             isclr(chanlist, ic->ic_bsschan->ic_ieee))
1671                 ic->ic_bsschan = IEEE80211_CHAN_ANYC;
1672         memcpy(ic->ic_chan_active, chanlist, IEEE80211_CHAN_BYTES);
1673         ieee80211_scan_flush(vap);
1674         free(list, M_TEMP);
1675         return ENETRESET;
1676 }
1677
1678 static __noinline int
1679 ieee80211_ioctl_setstastats(struct ieee80211vap *vap, struct ieee80211req *ireq)
1680 {
1681         struct ieee80211_node *ni;
1682         uint8_t macaddr[IEEE80211_ADDR_LEN];
1683         int error;
1684
1685         /*
1686          * NB: we could copyin ieee80211req_sta_stats so apps
1687          *     could make selective changes but that's overkill;
1688          *     just clear all stats for now.
1689          */
1690         if (ireq->i_len < IEEE80211_ADDR_LEN)
1691                 return EINVAL;
1692         error = copyin(ireq->i_data, macaddr, IEEE80211_ADDR_LEN);
1693         if (error != 0)
1694                 return error;
1695         ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap, macaddr);
1696         if (ni == NULL)
1697                 return ENOENT;
1698         /* XXX require ni_vap == vap? */
1699         memset(&ni->ni_stats, 0, sizeof(ni->ni_stats));
1700         ieee80211_free_node(ni);
1701         return 0;
1702 }
1703
1704 static __noinline int
1705 ieee80211_ioctl_setstatxpow(struct ieee80211vap *vap, struct ieee80211req *ireq)
1706 {
1707         struct ieee80211_node *ni;
1708         struct ieee80211req_sta_txpow txpow;
1709         int error;
1710
1711         if (ireq->i_len != sizeof(txpow))
1712                 return EINVAL;
1713         error = copyin(ireq->i_data, &txpow, sizeof(txpow));
1714         if (error != 0)
1715                 return error;
1716         ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap, txpow.it_macaddr);
1717         if (ni == NULL)
1718                 return ENOENT;
1719         ni->ni_txpower = txpow.it_txpow;
1720         ieee80211_free_node(ni);
1721         return error;
1722 }
1723
1724 static __noinline int
1725 ieee80211_ioctl_setwmeparam(struct ieee80211vap *vap, struct ieee80211req *ireq)
1726 {
1727         struct ieee80211com *ic = vap->iv_ic;
1728         struct ieee80211_wme_state *wme = &ic->ic_wme;
1729         struct wmeParams *wmep, *chanp;
1730         int isbss, ac;
1731
1732         if ((ic->ic_caps & IEEE80211_C_WME) == 0)
1733                 return EOPNOTSUPP;
1734
1735         isbss = (ireq->i_len & IEEE80211_WMEPARAM_BSS);
1736         ac = (ireq->i_len & IEEE80211_WMEPARAM_VAL);
1737         if (ac >= WME_NUM_AC)
1738                 ac = WME_AC_BE;
1739         if (isbss) {
1740                 chanp = &wme->wme_bssChanParams.cap_wmeParams[ac];
1741                 wmep = &wme->wme_wmeBssChanParams.cap_wmeParams[ac];
1742         } else {
1743                 chanp = &wme->wme_chanParams.cap_wmeParams[ac];
1744                 wmep = &wme->wme_wmeChanParams.cap_wmeParams[ac];
1745         }
1746         switch (ireq->i_type) {
1747         case IEEE80211_IOC_WME_CWMIN:           /* WME: CWmin */
1748                 if (isbss) {
1749                         wmep->wmep_logcwmin = ireq->i_val;
1750                         if ((wme->wme_flags & WME_F_AGGRMODE) == 0)
1751                                 chanp->wmep_logcwmin = ireq->i_val;
1752                 } else {
1753                         wmep->wmep_logcwmin = chanp->wmep_logcwmin =
1754                                 ireq->i_val;
1755                 }
1756                 break;
1757         case IEEE80211_IOC_WME_CWMAX:           /* WME: CWmax */
1758                 if (isbss) {
1759                         wmep->wmep_logcwmax = ireq->i_val;
1760                         if ((wme->wme_flags & WME_F_AGGRMODE) == 0)
1761                                 chanp->wmep_logcwmax = ireq->i_val;
1762                 } else {
1763                         wmep->wmep_logcwmax = chanp->wmep_logcwmax =
1764                                 ireq->i_val;
1765                 }
1766                 break;
1767         case IEEE80211_IOC_WME_AIFS:            /* WME: AIFS */
1768                 if (isbss) {
1769                         wmep->wmep_aifsn = ireq->i_val;
1770                         if ((wme->wme_flags & WME_F_AGGRMODE) == 0)
1771                                 chanp->wmep_aifsn = ireq->i_val;
1772                 } else {
1773                         wmep->wmep_aifsn = chanp->wmep_aifsn = ireq->i_val;
1774                 }
1775                 break;
1776         case IEEE80211_IOC_WME_TXOPLIMIT:       /* WME: txops limit */
1777                 if (isbss) {
1778                         wmep->wmep_txopLimit = ireq->i_val;
1779                         if ((wme->wme_flags & WME_F_AGGRMODE) == 0)
1780                                 chanp->wmep_txopLimit = ireq->i_val;
1781                 } else {
1782                         wmep->wmep_txopLimit = chanp->wmep_txopLimit =
1783                                 ireq->i_val;
1784                 }
1785                 break;
1786         case IEEE80211_IOC_WME_ACM:             /* WME: ACM (bss only) */
1787                 wmep->wmep_acm = ireq->i_val;
1788                 if ((wme->wme_flags & WME_F_AGGRMODE) == 0)
1789                         chanp->wmep_acm = ireq->i_val;
1790                 break;
1791         case IEEE80211_IOC_WME_ACKPOLICY:       /* WME: ACK policy (!bss only)*/
1792                 wmep->wmep_noackPolicy = chanp->wmep_noackPolicy =
1793                         (ireq->i_val) == 0;
1794                 break;
1795         }
1796         ieee80211_wme_updateparams(vap);
1797         return 0;
1798 }
1799
1800 static int
1801 find11gchannel(struct ieee80211com *ic, int start, int freq)
1802 {
1803         const struct ieee80211_channel *c;
1804         int i;
1805
1806         for (i = start+1; i < ic->ic_nchans; i++) {
1807                 c = &ic->ic_channels[i];
1808                 if (c->ic_freq == freq && IEEE80211_IS_CHAN_ANYG(c))
1809                         return 1;
1810         }
1811         /* NB: should not be needed but in case things are mis-sorted */
1812         for (i = 0; i < start; i++) {
1813                 c = &ic->ic_channels[i];
1814                 if (c->ic_freq == freq && IEEE80211_IS_CHAN_ANYG(c))
1815                         return 1;
1816         }
1817         return 0;
1818 }
1819
1820 static struct ieee80211_channel *
1821 findchannel(struct ieee80211com *ic, int ieee, int mode)
1822 {
1823         static const u_int chanflags[IEEE80211_MODE_MAX] = {
1824             [IEEE80211_MODE_AUTO]       = 0,
1825             [IEEE80211_MODE_11A]        = IEEE80211_CHAN_A,
1826             [IEEE80211_MODE_11B]        = IEEE80211_CHAN_B,
1827             [IEEE80211_MODE_11G]        = IEEE80211_CHAN_G,
1828             [IEEE80211_MODE_FH]         = IEEE80211_CHAN_FHSS,
1829             [IEEE80211_MODE_TURBO_A]    = IEEE80211_CHAN_108A,
1830             [IEEE80211_MODE_TURBO_G]    = IEEE80211_CHAN_108G,
1831             [IEEE80211_MODE_STURBO_A]   = IEEE80211_CHAN_STURBO,
1832             [IEEE80211_MODE_HALF]       = IEEE80211_CHAN_HALF,
1833             [IEEE80211_MODE_QUARTER]    = IEEE80211_CHAN_QUARTER,
1834             /* NB: handled specially below */
1835             [IEEE80211_MODE_11NA]       = IEEE80211_CHAN_A,
1836             [IEEE80211_MODE_11NG]       = IEEE80211_CHAN_G,
1837         };
1838         u_int modeflags;
1839         int i;
1840
1841         modeflags = chanflags[mode];
1842         for (i = 0; i < ic->ic_nchans; i++) {
1843                 struct ieee80211_channel *c = &ic->ic_channels[i];
1844
1845                 if (c->ic_ieee != ieee)
1846                         continue;
1847                 if (mode == IEEE80211_MODE_AUTO) {
1848                         /* ignore turbo channels for autoselect */
1849                         if (IEEE80211_IS_CHAN_TURBO(c))
1850                                 continue;
1851                         /*
1852                          * XXX special-case 11b/g channels so we
1853                          *     always select the g channel if both
1854                          *     are present.
1855                          * XXX prefer HT to non-HT?
1856                          */
1857                         if (!IEEE80211_IS_CHAN_B(c) ||
1858                             !find11gchannel(ic, i, c->ic_freq))
1859                                 return c;
1860                 } else {
1861                         /* must check HT specially */
1862                         if ((mode == IEEE80211_MODE_11NA ||
1863                             mode == IEEE80211_MODE_11NG) &&
1864                             !IEEE80211_IS_CHAN_HT(c))
1865                                 continue;
1866                         if ((c->ic_flags & modeflags) == modeflags)
1867                                 return c;
1868                 }
1869         }
1870         return NULL;
1871 }
1872
1873 /*
1874  * Check the specified against any desired mode (aka netband).
1875  * This is only used (presently) when operating in hostap mode
1876  * to enforce consistency.
1877  */
1878 static int
1879 check_mode_consistency(const struct ieee80211_channel *c, int mode)
1880 {
1881         KASSERT(c != IEEE80211_CHAN_ANYC, ("oops, no channel"));
1882
1883         switch (mode) {
1884         case IEEE80211_MODE_11B:
1885                 return (IEEE80211_IS_CHAN_B(c));
1886         case IEEE80211_MODE_11G:
1887                 return (IEEE80211_IS_CHAN_ANYG(c) && !IEEE80211_IS_CHAN_HT(c));
1888         case IEEE80211_MODE_11A:
1889                 return (IEEE80211_IS_CHAN_A(c) && !IEEE80211_IS_CHAN_HT(c));
1890         case IEEE80211_MODE_STURBO_A:
1891                 return (IEEE80211_IS_CHAN_STURBO(c));
1892         case IEEE80211_MODE_11NA:
1893                 return (IEEE80211_IS_CHAN_HTA(c));
1894         case IEEE80211_MODE_11NG:
1895                 return (IEEE80211_IS_CHAN_HTG(c));
1896         }
1897         return 1;
1898
1899 }
1900
1901 /*
1902  * Common code to set the current channel.  If the device
1903  * is up and running this may result in an immediate channel
1904  * change or a kick of the state machine.
1905  */
1906 static int
1907 setcurchan(struct ieee80211vap *vap, struct ieee80211_channel *c)
1908 {
1909         struct ieee80211com *ic = vap->iv_ic;
1910         int error;
1911
1912         if (c != IEEE80211_CHAN_ANYC) {
1913                 if (IEEE80211_IS_CHAN_RADAR(c))
1914                         return EBUSY;   /* XXX better code? */
1915                 if (vap->iv_opmode == IEEE80211_M_HOSTAP) {
1916                         if (IEEE80211_IS_CHAN_NOHOSTAP(c))
1917                                 return EINVAL;
1918                         if (!check_mode_consistency(c, vap->iv_des_mode))
1919                                 return EINVAL;
1920                 } else if (vap->iv_opmode == IEEE80211_M_IBSS) {
1921                         if (IEEE80211_IS_CHAN_NOADHOC(c))
1922                                 return EINVAL;
1923                 }
1924                 if (vap->iv_state == IEEE80211_S_RUN &&
1925                     vap->iv_bss->ni_chan == c)
1926                         return 0;       /* NB: nothing to do */
1927         }
1928         vap->iv_des_chan = c;
1929
1930         error = 0;
1931         if (vap->iv_opmode == IEEE80211_M_MONITOR &&
1932             vap->iv_des_chan != IEEE80211_CHAN_ANYC) {
1933                 /*
1934                  * Monitor mode can switch directly.
1935                  */
1936                 if (IFNET_IS_UP_RUNNING(vap->iv_ifp)) {
1937                         /* XXX need state machine for other vap's to follow */
1938                         ieee80211_setcurchan(ic, vap->iv_des_chan);
1939                         vap->iv_bss->ni_chan = ic->ic_curchan;
1940                 } else
1941                         ic->ic_curchan = vap->iv_des_chan;
1942                         ic->ic_rt = ieee80211_get_ratetable(ic->ic_curchan);
1943         } else {
1944                 /*
1945                  * Need to go through the state machine in case we
1946                  * need to reassociate or the like.  The state machine
1947                  * will pickup the desired channel and avoid scanning.
1948                  */
1949                 if (IS_UP_AUTO(vap))
1950                         ieee80211_new_state(vap, IEEE80211_S_SCAN, 0);
1951                 else if (vap->iv_des_chan != IEEE80211_CHAN_ANYC) {
1952                         /*
1953                          * When not up+running and a real channel has
1954                          * been specified fix the current channel so
1955                          * there is immediate feedback; e.g. via ifconfig.
1956                          */
1957                         ic->ic_curchan = vap->iv_des_chan;
1958                         ic->ic_rt = ieee80211_get_ratetable(ic->ic_curchan);
1959                 }
1960         }
1961         return error;
1962 }
1963
1964 /*
1965  * Old api for setting the current channel; this is
1966  * deprecated because channel numbers are ambiguous.
1967  */
1968 static __noinline int
1969 ieee80211_ioctl_setchannel(struct ieee80211vap *vap,
1970         const struct ieee80211req *ireq)
1971 {
1972         struct ieee80211com *ic = vap->iv_ic;
1973         struct ieee80211_channel *c;
1974
1975         /* XXX 0xffff overflows 16-bit signed */
1976         if (ireq->i_val == 0 ||
1977             ireq->i_val == (int16_t) IEEE80211_CHAN_ANY) {
1978                 c = IEEE80211_CHAN_ANYC;
1979         } else {
1980                 struct ieee80211_channel *c2;
1981
1982                 c = findchannel(ic, ireq->i_val, vap->iv_des_mode);
1983                 if (c == NULL) {
1984                         c = findchannel(ic, ireq->i_val,
1985                                 IEEE80211_MODE_AUTO);
1986                         if (c == NULL)
1987                                 return EINVAL;
1988                 }
1989                 /*
1990                  * Fine tune channel selection based on desired mode:
1991                  *   if 11b is requested, find the 11b version of any
1992                  *      11g channel returned,
1993                  *   if static turbo, find the turbo version of any
1994                  *      11a channel return,
1995                  *   if 11na is requested, find the ht version of any
1996                  *      11a channel returned,
1997                  *   if 11ng is requested, find the ht version of any
1998                  *      11g channel returned,
1999                  *   otherwise we should be ok with what we've got.
2000                  */
2001                 switch (vap->iv_des_mode) {
2002                 case IEEE80211_MODE_11B:
2003                         if (IEEE80211_IS_CHAN_ANYG(c)) {
2004                                 c2 = findchannel(ic, ireq->i_val,
2005                                         IEEE80211_MODE_11B);
2006                                 /* NB: should not happen, =>'s 11g w/o 11b */
2007                                 if (c2 != NULL)
2008                                         c = c2;
2009                         }
2010                         break;
2011                 case IEEE80211_MODE_TURBO_A:
2012                         if (IEEE80211_IS_CHAN_A(c)) {
2013                                 c2 = findchannel(ic, ireq->i_val,
2014                                         IEEE80211_MODE_TURBO_A);
2015                                 if (c2 != NULL)
2016                                         c = c2;
2017                         }
2018                         break;
2019                 case IEEE80211_MODE_11NA:
2020                         if (IEEE80211_IS_CHAN_A(c)) {
2021                                 c2 = findchannel(ic, ireq->i_val,
2022                                         IEEE80211_MODE_11NA);
2023                                 if (c2 != NULL)
2024                                         c = c2;
2025                         }
2026                         break;
2027                 case IEEE80211_MODE_11NG:
2028                         if (IEEE80211_IS_CHAN_ANYG(c)) {
2029                                 c2 = findchannel(ic, ireq->i_val,
2030                                         IEEE80211_MODE_11NG);
2031                                 if (c2 != NULL)
2032                                         c = c2;
2033                         }
2034                         break;
2035                 default:                /* NB: no static turboG */
2036                         break;
2037                 }
2038         }
2039         return setcurchan(vap, c);
2040 }
2041
2042 /*
2043  * New/current api for setting the current channel; a complete
2044  * channel description is provide so there is no ambiguity in
2045  * identifying the channel.
2046  */
2047 static __noinline int
2048 ieee80211_ioctl_setcurchan(struct ieee80211vap *vap,
2049         const struct ieee80211req *ireq)
2050 {
2051         struct ieee80211com *ic = vap->iv_ic;
2052         struct ieee80211_channel chan, *c;
2053         int error;
2054
2055         if (ireq->i_len != sizeof(chan))
2056                 return EINVAL;
2057         error = copyin(ireq->i_data, &chan, sizeof(chan));
2058         if (error != 0)
2059                 return error;
2060         /* XXX 0xffff overflows 16-bit signed */
2061         if (chan.ic_freq == 0 || chan.ic_freq == IEEE80211_CHAN_ANY) {
2062                 c = IEEE80211_CHAN_ANYC;
2063         } else {
2064                 c = ieee80211_find_channel(ic, chan.ic_freq, chan.ic_flags);
2065                 if (c == NULL)
2066                         return EINVAL;
2067         }
2068         return setcurchan(vap, c);
2069 }
2070
2071 static __noinline int
2072 ieee80211_ioctl_setregdomain(struct ieee80211vap *vap,
2073         const struct ieee80211req *ireq)
2074 {
2075         struct ieee80211_regdomain_req *reg;
2076         int nchans, error;
2077
2078         nchans = 1 + ((ireq->i_len - sizeof(struct ieee80211_regdomain_req)) /
2079             sizeof(struct ieee80211_channel));
2080         if (!(1 <= nchans && nchans <= IEEE80211_CHAN_MAX)) {
2081                 IEEE80211_DPRINTF(vap, IEEE80211_MSG_IOCTL,
2082                     "%s: bad # chans, i_len %d nchans %d\n", __func__,
2083                     ireq->i_len, nchans);
2084                 return EINVAL;
2085         }
2086         reg = (struct ieee80211_regdomain_req *)
2087             malloc(IEEE80211_REGDOMAIN_SIZE(nchans), M_TEMP, M_NOWAIT);
2088         if (reg == NULL) {
2089                 IEEE80211_DPRINTF(vap, IEEE80211_MSG_IOCTL,
2090                     "%s: no memory, nchans %d\n", __func__, nchans);
2091                 return ENOMEM;
2092         }
2093         error = copyin(ireq->i_data, reg, IEEE80211_REGDOMAIN_SIZE(nchans));
2094         if (error == 0) {
2095                 /* NB: validate inline channel count against storage size */
2096                 if (reg->chaninfo.ic_nchans != nchans) {
2097                         IEEE80211_DPRINTF(vap, IEEE80211_MSG_IOCTL,
2098                             "%s: chan cnt mismatch, %d != %d\n", __func__,
2099                                 reg->chaninfo.ic_nchans, nchans);
2100                         error = EINVAL;
2101                 } else
2102                         error = ieee80211_setregdomain(vap, reg);
2103         }
2104         free(reg, M_TEMP);
2105
2106         return (error == 0 ? ENETRESET : error);
2107 }
2108
2109 static int
2110 ieee80211_ioctl_setroam(struct ieee80211vap *vap,
2111         const struct ieee80211req *ireq)
2112 {
2113         if (ireq->i_len != sizeof(vap->iv_roamparms))
2114                 return EINVAL;
2115         /* XXX validate params */
2116         /* XXX? ENETRESET to push to device? */
2117         return copyin(ireq->i_data, vap->iv_roamparms,
2118             sizeof(vap->iv_roamparms));
2119 }
2120
2121 static int
2122 checkrate(const struct ieee80211_rateset *rs, int rate)
2123 {
2124         int i;
2125
2126         if (rate == IEEE80211_FIXED_RATE_NONE)
2127                 return 1;
2128         for (i = 0; i < rs->rs_nrates; i++)
2129                 if ((rs->rs_rates[i] & IEEE80211_RATE_VAL) == rate)
2130                         return 1;
2131         return 0;
2132 }
2133
2134 static int
2135 checkmcs(int mcs)
2136 {
2137         if (mcs == IEEE80211_FIXED_RATE_NONE)
2138                 return 1;
2139         if ((mcs & IEEE80211_RATE_MCS) == 0)    /* MCS always have 0x80 set */
2140                 return 0;
2141         return (mcs & 0x7f) <= 15;      /* XXX could search ht rate set */
2142 }
2143
2144 static __noinline int
2145 ieee80211_ioctl_settxparams(struct ieee80211vap *vap,
2146         const struct ieee80211req *ireq)
2147 {
2148         struct ieee80211com *ic = vap->iv_ic;
2149         struct ieee80211_txparams_req parms;    /* XXX stack use? */
2150         struct ieee80211_txparam *src, *dst;
2151         const struct ieee80211_rateset *rs;
2152         int error, mode, changed, is11n, nmodes;
2153
2154         /* NB: accept short requests for backwards compat */
2155         if (ireq->i_len > sizeof(parms))
2156                 return EINVAL;
2157         error = copyin(ireq->i_data, &parms, ireq->i_len);
2158         if (error != 0)
2159                 return error;
2160         nmodes = ireq->i_len / sizeof(struct ieee80211_txparam);
2161         changed = 0;
2162         /* validate parameters and check if anything changed */
2163         for (mode = IEEE80211_MODE_11A; mode < nmodes; mode++) {
2164                 if (isclr(ic->ic_modecaps, mode))
2165                         continue;
2166                 src = &parms.params[mode];
2167                 dst = &vap->iv_txparms[mode];
2168                 rs = &ic->ic_sup_rates[mode];   /* NB: 11n maps to legacy */
2169                 is11n = (mode == IEEE80211_MODE_11NA ||
2170                          mode == IEEE80211_MODE_11NG);
2171                 if (src->ucastrate != dst->ucastrate) {
2172                         if (!checkrate(rs, src->ucastrate) &&
2173                             (!is11n || !checkmcs(src->ucastrate)))
2174                                 return EINVAL;
2175                         changed++;
2176                 }
2177                 if (src->mcastrate != dst->mcastrate) {
2178                         if (!checkrate(rs, src->mcastrate) &&
2179                             (!is11n || !checkmcs(src->mcastrate)))
2180                                 return EINVAL;
2181                         changed++;
2182                 }
2183                 if (src->mgmtrate != dst->mgmtrate) {
2184                         if (!checkrate(rs, src->mgmtrate) &&
2185                             (!is11n || !checkmcs(src->mgmtrate)))
2186                                 return EINVAL;
2187                         changed++;
2188                 }
2189                 if (src->maxretry != dst->maxretry)     /* NB: no bounds */
2190                         changed++;
2191         }
2192         if (changed) {
2193                 /*
2194                  * Copy new parameters in place and notify the
2195                  * driver so it can push state to the device.
2196                  */
2197                 for (mode = IEEE80211_MODE_11A; mode < nmodes; mode++) {
2198                         if (isset(ic->ic_modecaps, mode))
2199                                 vap->iv_txparms[mode] = parms.params[mode];
2200                 }
2201                 /* XXX could be more intelligent,
2202                    e.g. don't reset if setting not being used */
2203                 return ENETRESET;
2204         }
2205         return 0;
2206 }
2207
2208 /*
2209  * Application Information Element support.
2210  */
2211 static int
2212 setappie(struct ieee80211_appie **aie, const struct ieee80211req *ireq)
2213 {
2214         struct ieee80211_appie *app = *aie;
2215         struct ieee80211_appie *napp;
2216         int error;
2217
2218         if (ireq->i_len == 0) {         /* delete any existing ie */
2219                 if (app != NULL) {
2220                         *aie = NULL;    /* XXX racey */
2221                         free(app, M_80211_NODE_IE);
2222                 }
2223                 return 0;
2224         }
2225         if (!(2 <= ireq->i_len && ireq->i_len <= IEEE80211_MAX_APPIE))
2226                 return EINVAL;
2227         /*
2228          * Allocate a new appie structure and copy in the user data.
2229          * When done swap in the new structure.  Note that we do not
2230          * guard against users holding a ref to the old structure;
2231          * this must be handled outside this code.
2232          *
2233          * XXX bad bad bad
2234          */
2235         napp = (struct ieee80211_appie *) malloc(
2236             sizeof(struct ieee80211_appie) + ireq->i_len, M_80211_NODE_IE, M_NOWAIT);
2237         if (napp == NULL)
2238                 return ENOMEM;
2239         /* XXX holding ic lock */
2240         error = copyin(ireq->i_data, napp->ie_data, ireq->i_len);
2241         if (error) {
2242                 free(napp, M_80211_NODE_IE);
2243                 return error;
2244         }
2245         napp->ie_len = ireq->i_len;
2246         *aie = napp;
2247         if (app != NULL)
2248                 free(app, M_80211_NODE_IE);
2249         return 0;
2250 }
2251
2252 static void
2253 setwparsnie(struct ieee80211vap *vap, uint8_t *ie, int space)
2254 {
2255         /* validate data is present as best we can */
2256         if (space == 0 || 2+ie[1] > space)
2257                 return;
2258         if (ie[0] == IEEE80211_ELEMID_VENDOR)
2259                 vap->iv_wpa_ie = ie;
2260         else if (ie[0] == IEEE80211_ELEMID_RSN)
2261                 vap->iv_rsn_ie = ie;
2262 }
2263
2264 static __noinline int
2265 ieee80211_ioctl_setappie_locked(struct ieee80211vap *vap,
2266         const struct ieee80211req *ireq, int fc0)
2267 {
2268         int error;
2269
2270         IEEE80211_LOCK_ASSERT(vap->iv_ic);
2271
2272         switch (fc0 & IEEE80211_FC0_SUBTYPE_MASK) {
2273         case IEEE80211_FC0_SUBTYPE_BEACON:
2274                 if (vap->iv_opmode != IEEE80211_M_HOSTAP &&
2275                     vap->iv_opmode != IEEE80211_M_IBSS) {
2276                         error = EINVAL;
2277                         break;
2278                 }
2279                 error = setappie(&vap->iv_appie_beacon, ireq);
2280                 if (error == 0)
2281                         ieee80211_beacon_notify(vap, IEEE80211_BEACON_APPIE);
2282                 break;
2283         case IEEE80211_FC0_SUBTYPE_PROBE_RESP:
2284                 error = setappie(&vap->iv_appie_proberesp, ireq);
2285                 break;
2286         case IEEE80211_FC0_SUBTYPE_ASSOC_RESP:
2287                 if (vap->iv_opmode == IEEE80211_M_HOSTAP)
2288                         error = setappie(&vap->iv_appie_assocresp, ireq);
2289                 else
2290                         error = EINVAL;
2291                 break;
2292         case IEEE80211_FC0_SUBTYPE_PROBE_REQ:
2293                 error = setappie(&vap->iv_appie_probereq, ireq);
2294                 break;
2295         case IEEE80211_FC0_SUBTYPE_ASSOC_REQ:
2296                 if (vap->iv_opmode == IEEE80211_M_STA)
2297                         error = setappie(&vap->iv_appie_assocreq, ireq);
2298                 else
2299                         error = EINVAL;
2300                 break;
2301         case (IEEE80211_APPIE_WPA & IEEE80211_FC0_SUBTYPE_MASK):
2302                 error = setappie(&vap->iv_appie_wpa, ireq);
2303                 if (error == 0) {
2304                         /*
2305                          * Must split single blob of data into separate
2306                          * WPA and RSN ie's because they go in different
2307                          * locations in the mgt frames.
2308                          * XXX use IEEE80211_IOC_WPA2 so user code does split
2309                          */
2310                         vap->iv_wpa_ie = NULL;
2311                         vap->iv_rsn_ie = NULL;
2312                         if (vap->iv_appie_wpa != NULL) {
2313                                 struct ieee80211_appie *appie =
2314                                     vap->iv_appie_wpa;
2315                                 uint8_t *data = appie->ie_data;
2316
2317                                 /* XXX ie length validate is painful, cheat */
2318                                 setwparsnie(vap, data, appie->ie_len);
2319                                 setwparsnie(vap, data + 2 + data[1],
2320                                     appie->ie_len - (2 + data[1]));
2321                         }
2322                         if (vap->iv_opmode == IEEE80211_M_HOSTAP ||
2323                             vap->iv_opmode == IEEE80211_M_IBSS) {
2324                                 /*
2325                                  * Must rebuild beacon frame as the update
2326                                  * mechanism doesn't handle WPA/RSN ie's.
2327                                  * Could extend it but it doesn't normally
2328                                  * change; this is just to deal with hostapd
2329                                  * plumbing the ie after the interface is up.
2330                                  */
2331                                 error = ENETRESET;
2332                         }
2333                 }
2334                 break;
2335         default:
2336                 error = EINVAL;
2337                 break;
2338         }
2339         return error;
2340 }
2341
2342 static __noinline int
2343 ieee80211_ioctl_setappie(struct ieee80211vap *vap,
2344         const struct ieee80211req *ireq)
2345 {
2346         struct ieee80211com *ic = vap->iv_ic;
2347         int error;
2348         uint8_t fc0;
2349
2350         fc0 = ireq->i_val & 0xff;
2351         if ((fc0 & IEEE80211_FC0_TYPE_MASK) != IEEE80211_FC0_TYPE_MGT)
2352                 return EINVAL;
2353         /* NB: could check iv_opmode and reject but hardly worth the effort */
2354         IEEE80211_LOCK(ic);
2355         error = ieee80211_ioctl_setappie_locked(vap, ireq, fc0);
2356         IEEE80211_UNLOCK(ic);
2357         return error;
2358 }
2359
2360 static __noinline int
2361 ieee80211_ioctl_chanswitch(struct ieee80211vap *vap, struct ieee80211req *ireq)
2362 {
2363         struct ieee80211com *ic = vap->iv_ic;
2364         struct ieee80211_chanswitch_req csr;
2365         struct ieee80211_channel *c;
2366         int error;
2367
2368         if (ireq->i_len != sizeof(csr))
2369                 return EINVAL;
2370         error = copyin(ireq->i_data, &csr, sizeof(csr));
2371         if (error != 0)
2372                 return error;
2373         /* XXX adhoc mode not supported */
2374         if (vap->iv_opmode != IEEE80211_M_HOSTAP ||
2375             (vap->iv_flags & IEEE80211_F_DOTH) == 0)
2376                 return EOPNOTSUPP;
2377         c = ieee80211_find_channel(ic,
2378             csr.csa_chan.ic_freq, csr.csa_chan.ic_flags);
2379         if (c == NULL)
2380                 return ENOENT;
2381         IEEE80211_LOCK(ic);
2382         if ((ic->ic_flags & IEEE80211_F_CSAPENDING) == 0)
2383                 ieee80211_csa_startswitch(ic, c, csr.csa_mode, csr.csa_count);
2384         else if (csr.csa_count == 0)
2385                 ieee80211_csa_cancelswitch(ic);
2386         else
2387                 error = EBUSY;
2388         IEEE80211_UNLOCK(ic);
2389         return error;
2390 }
2391
2392 static int
2393 ieee80211_scanreq(struct ieee80211vap *vap, struct ieee80211_scan_req *sr)
2394 {
2395 #define IEEE80211_IOC_SCAN_FLAGS \
2396         (IEEE80211_IOC_SCAN_NOPICK | IEEE80211_IOC_SCAN_ACTIVE | \
2397          IEEE80211_IOC_SCAN_PICK1ST | IEEE80211_IOC_SCAN_BGSCAN | \
2398          IEEE80211_IOC_SCAN_ONCE | IEEE80211_IOC_SCAN_NOBCAST | \
2399          IEEE80211_IOC_SCAN_NOJOIN | IEEE80211_IOC_SCAN_FLUSH | \
2400          IEEE80211_IOC_SCAN_CHECK)
2401         struct ieee80211com *ic = vap->iv_ic;
2402         int error, i;
2403
2404         /* convert duration */
2405         if (sr->sr_duration == IEEE80211_IOC_SCAN_FOREVER)
2406                 sr->sr_duration = IEEE80211_SCAN_FOREVER;
2407         else {
2408                 if (sr->sr_duration < IEEE80211_IOC_SCAN_DURATION_MIN ||
2409                     sr->sr_duration > IEEE80211_IOC_SCAN_DURATION_MAX)
2410                         return EINVAL;
2411                 sr->sr_duration = msecs_to_ticks(sr->sr_duration);
2412                 if (sr->sr_duration < 1)
2413                         sr->sr_duration = 1;
2414         }
2415         /* convert min/max channel dwell */
2416         if (sr->sr_mindwell != 0) {
2417                 sr->sr_mindwell = msecs_to_ticks(sr->sr_mindwell);
2418                 if (sr->sr_mindwell < 1)
2419                         sr->sr_mindwell = 1;
2420         }
2421         if (sr->sr_maxdwell != 0) {
2422                 sr->sr_maxdwell = msecs_to_ticks(sr->sr_maxdwell);
2423                 if (sr->sr_maxdwell < 1)
2424                         sr->sr_maxdwell = 1;
2425         }
2426         /* NB: silently reduce ssid count to what is supported */
2427         if (sr->sr_nssid > IEEE80211_SCAN_MAX_SSID)
2428                 sr->sr_nssid = IEEE80211_SCAN_MAX_SSID;
2429         for (i = 0; i < sr->sr_nssid; i++)
2430                 if (sr->sr_ssid[i].len > IEEE80211_NWID_LEN)
2431                         return EINVAL;
2432         /* cleanse flags just in case, could reject if invalid flags */
2433         sr->sr_flags &= IEEE80211_IOC_SCAN_FLAGS;
2434         /*
2435          * Add an implicit NOPICK if the vap is not marked UP.  This
2436          * allows applications to scan without joining a bss (or picking
2437          * a channel and setting up a bss) and without forcing manual
2438          * roaming mode--you just need to mark the parent device UP.
2439          */
2440         if ((vap->iv_ifp->if_flags & IFF_UP) == 0)
2441                 sr->sr_flags |= IEEE80211_IOC_SCAN_NOPICK;
2442
2443         IEEE80211_DPRINTF(vap, IEEE80211_MSG_SCAN,
2444             "%s: flags 0x%x%s duration 0x%x mindwell %u maxdwell %u nssid %d\n",
2445             __func__, sr->sr_flags,
2446             (vap->iv_ifp->if_flags & IFF_UP) == 0 ? " (!IFF_UP)" : "",
2447             sr->sr_duration, sr->sr_mindwell, sr->sr_maxdwell, sr->sr_nssid);
2448         /*
2449          * If we are in INIT state then the driver has never had a chance
2450          * to setup hardware state to do a scan; we must use the state
2451          * machine to get us up to the SCAN state but once we reach SCAN
2452          * state we then want to use the supplied params.  Stash the
2453          * parameters in the vap and mark IEEE80211_FEXT_SCANREQ; the
2454          * state machines will recognize this and use the stashed params
2455          * to issue the scan request.
2456          *
2457          * Otherwise just invoke the scan machinery directly.
2458          */
2459         IEEE80211_LOCK(ic);
2460         if (vap->iv_state == IEEE80211_S_INIT) {
2461                 /* NB: clobbers previous settings */
2462                 vap->iv_scanreq_flags = sr->sr_flags;
2463                 vap->iv_scanreq_duration = sr->sr_duration;
2464                 vap->iv_scanreq_nssid = sr->sr_nssid;
2465                 for (i = 0; i < sr->sr_nssid; i++) {
2466                         vap->iv_scanreq_ssid[i].len = sr->sr_ssid[i].len;
2467                         memcpy(vap->iv_scanreq_ssid[i].ssid,
2468                             sr->sr_ssid[i].ssid, sr->sr_ssid[i].len);
2469                 }
2470                 vap->iv_flags_ext |= IEEE80211_FEXT_SCANREQ;
2471                 IEEE80211_UNLOCK(ic);
2472                 ieee80211_new_state(vap, IEEE80211_S_SCAN, 0);
2473         } else {
2474                 vap->iv_flags_ext &= ~IEEE80211_FEXT_SCANREQ;
2475                 IEEE80211_UNLOCK(ic);
2476                 if (sr->sr_flags & IEEE80211_IOC_SCAN_CHECK) {
2477                         error = ieee80211_check_scan(vap, sr->sr_flags,
2478                             sr->sr_duration, sr->sr_mindwell, sr->sr_maxdwell,
2479                             sr->sr_nssid,
2480                             /* NB: cheat, we assume structures are compatible */
2481                             (const struct ieee80211_scan_ssid *) &sr->sr_ssid[0]);
2482                 } else {
2483                         error = ieee80211_start_scan(vap, sr->sr_flags,
2484                             sr->sr_duration, sr->sr_mindwell, sr->sr_maxdwell,
2485                             sr->sr_nssid,
2486                             /* NB: cheat, we assume structures are compatible */
2487                             (const struct ieee80211_scan_ssid *) &sr->sr_ssid[0]);
2488                 }
2489                 if (error == 0)
2490                         return EINPROGRESS;
2491         }
2492         return 0;
2493 #undef IEEE80211_IOC_SCAN_FLAGS
2494 }
2495
2496 static __noinline int
2497 ieee80211_ioctl_scanreq(struct ieee80211vap *vap, struct ieee80211req *ireq)
2498 {
2499         struct ieee80211com *ic = vap->iv_ic;
2500         struct ieee80211_scan_req sr;           /* XXX off stack? */
2501         int error;
2502
2503         /* NB: parent must be running */
2504         if ((ic->ic_ifp->if_drv_flags & IFF_DRV_RUNNING) == 0)
2505                 return ENXIO;
2506
2507         if (ireq->i_len != sizeof(sr))
2508                 return EINVAL;
2509         error = copyin(ireq->i_data, &sr, sizeof(sr));
2510         if (error != 0)
2511                 return error;
2512         return ieee80211_scanreq(vap, &sr);
2513 }
2514
2515 static __noinline int
2516 ieee80211_ioctl_setstavlan(struct ieee80211vap *vap, struct ieee80211req *ireq)
2517 {
2518         struct ieee80211_node *ni;
2519         struct ieee80211req_sta_vlan vlan;
2520         int error;
2521
2522         if (ireq->i_len != sizeof(vlan))
2523                 return EINVAL;
2524         error = copyin(ireq->i_data, &vlan, sizeof(vlan));
2525         if (error != 0)
2526                 return error;
2527         if (!IEEE80211_ADDR_EQ(vlan.sv_macaddr, zerobssid)) {
2528                 ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap,
2529                     vlan.sv_macaddr);
2530                 if (ni == NULL)
2531                         return ENOENT;
2532         } else
2533                 ni = ieee80211_ref_node(vap->iv_bss);
2534         ni->ni_vlan = vlan.sv_vlan;
2535         ieee80211_free_node(ni);
2536         return error;
2537 }
2538
2539 static int
2540 isvap11g(const struct ieee80211vap *vap)
2541 {
2542         const struct ieee80211_node *bss = vap->iv_bss;
2543         return bss->ni_chan != IEEE80211_CHAN_ANYC &&
2544             IEEE80211_IS_CHAN_ANYG(bss->ni_chan);
2545 }
2546
2547 static int
2548 isvapht(const struct ieee80211vap *vap)
2549 {
2550         const struct ieee80211_node *bss = vap->iv_bss;
2551         return bss->ni_chan != IEEE80211_CHAN_ANYC &&
2552             IEEE80211_IS_CHAN_HT(bss->ni_chan);
2553 }
2554
2555 /*
2556  * Dummy ioctl set handler so the linker set is defined.
2557  */
2558 static int
2559 dummy_ioctl_set(struct ieee80211vap *vap, struct ieee80211req *ireq)
2560 {
2561         return ENOSYS;
2562 }
2563 IEEE80211_IOCTL_SET(dummy, dummy_ioctl_set);
2564
2565 static int
2566 ieee80211_ioctl_setdefault(struct ieee80211vap *vap, struct ieee80211req *ireq)
2567 {
2568         ieee80211_ioctl_setfunc * const *set;
2569         int error;
2570
2571         SET_FOREACH(set, ieee80211_ioctl_setset) {
2572                 error = (*set)(vap, ireq);
2573                 if (error != ENOSYS)
2574                         return error;
2575         }
2576         return EINVAL;
2577 }
2578
2579 static __noinline int
2580 ieee80211_ioctl_set80211(struct ieee80211vap *vap, u_long cmd, struct ieee80211req *ireq)
2581 {
2582         struct ieee80211com *ic = vap->iv_ic;
2583         int error;
2584         const struct ieee80211_authenticator *auth;
2585         uint8_t tmpkey[IEEE80211_KEYBUF_SIZE];
2586         char tmpssid[IEEE80211_NWID_LEN];
2587         uint8_t tmpbssid[IEEE80211_ADDR_LEN];
2588         struct ieee80211_key *k;
2589         u_int kid;
2590         uint32_t flags;
2591
2592         error = 0;
2593         switch (ireq->i_type) {
2594         case IEEE80211_IOC_SSID:
2595                 if (ireq->i_val != 0 ||
2596                     ireq->i_len > IEEE80211_NWID_LEN)
2597                         return EINVAL;
2598                 error = copyin(ireq->i_data, tmpssid, ireq->i_len);
2599                 if (error)
2600                         break;
2601                 memset(vap->iv_des_ssid[0].ssid, 0, IEEE80211_NWID_LEN);
2602                 vap->iv_des_ssid[0].len = ireq->i_len;
2603                 memcpy(vap->iv_des_ssid[0].ssid, tmpssid, ireq->i_len);
2604                 vap->iv_des_nssid = (ireq->i_len > 0);
2605                 error = ENETRESET;
2606                 break;
2607         case IEEE80211_IOC_WEP:
2608                 switch (ireq->i_val) {
2609                 case IEEE80211_WEP_OFF:
2610                         vap->iv_flags &= ~IEEE80211_F_PRIVACY;
2611                         vap->iv_flags &= ~IEEE80211_F_DROPUNENC;
2612                         break;
2613                 case IEEE80211_WEP_ON:
2614                         vap->iv_flags |= IEEE80211_F_PRIVACY;
2615                         vap->iv_flags |= IEEE80211_F_DROPUNENC;
2616                         break;
2617                 case IEEE80211_WEP_MIXED:
2618                         vap->iv_flags |= IEEE80211_F_PRIVACY;
2619                         vap->iv_flags &= ~IEEE80211_F_DROPUNENC;
2620                         break;
2621                 }
2622                 error = ENETRESET;
2623                 break;
2624         case IEEE80211_IOC_WEPKEY:
2625                 kid = (u_int) ireq->i_val;
2626                 if (kid >= IEEE80211_WEP_NKID)
2627                         return EINVAL;
2628                 k = &vap->iv_nw_keys[kid];
2629                 if (ireq->i_len == 0) {
2630                         /* zero-len =>'s delete any existing key */
2631                         (void) ieee80211_crypto_delkey(vap, k);
2632                         break;
2633                 }
2634                 if (ireq->i_len > sizeof(tmpkey))
2635                         return EINVAL;
2636                 memset(tmpkey, 0, sizeof(tmpkey));
2637                 error = copyin(ireq->i_data, tmpkey, ireq->i_len);
2638                 if (error)
2639                         break;
2640                 ieee80211_key_update_begin(vap);
2641                 k->wk_keyix = kid;      /* NB: force fixed key id */
2642                 if (ieee80211_crypto_newkey(vap, IEEE80211_CIPHER_WEP,
2643                     IEEE80211_KEY_XMIT | IEEE80211_KEY_RECV, k)) {
2644                         k->wk_keylen = ireq->i_len;
2645                         memcpy(k->wk_key, tmpkey, sizeof(tmpkey));
2646                         IEEE80211_ADDR_COPY(k->wk_macaddr, vap->iv_myaddr);
2647                         if  (!ieee80211_crypto_setkey(vap, k))
2648                                 error = EINVAL;
2649                 } else
2650                         error = EINVAL;
2651                 ieee80211_key_update_end(vap);
2652                 break;
2653         case IEEE80211_IOC_WEPTXKEY:
2654                 kid = (u_int) ireq->i_val;
2655                 if (kid >= IEEE80211_WEP_NKID &&
2656                     (uint16_t) kid != IEEE80211_KEYIX_NONE)
2657                         return EINVAL;
2658                 vap->iv_def_txkey = kid;
2659                 break;
2660         case IEEE80211_IOC_AUTHMODE:
2661                 switch (ireq->i_val) {
2662                 case IEEE80211_AUTH_WPA:
2663                 case IEEE80211_AUTH_8021X:      /* 802.1x */
2664                 case IEEE80211_AUTH_OPEN:       /* open */
2665                 case IEEE80211_AUTH_SHARED:     /* shared-key */
2666                 case IEEE80211_AUTH_AUTO:       /* auto */
2667                         auth = ieee80211_authenticator_get(ireq->i_val);
2668                         if (auth == NULL)
2669                                 return EINVAL;
2670                         break;
2671                 default:
2672                         return EINVAL;
2673                 }
2674                 switch (ireq->i_val) {
2675                 case IEEE80211_AUTH_WPA:        /* WPA w/ 802.1x */
2676                         vap->iv_flags |= IEEE80211_F_PRIVACY;
2677                         ireq->i_val = IEEE80211_AUTH_8021X;
2678                         break;
2679                 case IEEE80211_AUTH_OPEN:       /* open */
2680                         vap->iv_flags &= ~(IEEE80211_F_WPA|IEEE80211_F_PRIVACY);
2681                         break;
2682                 case IEEE80211_AUTH_SHARED:     /* shared-key */
2683                 case IEEE80211_AUTH_8021X:      /* 802.1x */
2684                         vap->iv_flags &= ~IEEE80211_F_WPA;
2685                         /* both require a key so mark the PRIVACY capability */
2686                         vap->iv_flags |= IEEE80211_F_PRIVACY;
2687                         break;
2688                 case IEEE80211_AUTH_AUTO:       /* auto */
2689                         vap->iv_flags &= ~IEEE80211_F_WPA;
2690                         /* XXX PRIVACY handling? */
2691                         /* XXX what's the right way to do this? */
2692                         break;
2693                 }
2694                 /* NB: authenticator attach/detach happens on state change */
2695                 vap->iv_bss->ni_authmode = ireq->i_val;
2696                 /* XXX mixed/mode/usage? */
2697                 vap->iv_auth = auth;
2698                 error = ENETRESET;
2699                 break;
2700         case IEEE80211_IOC_CHANNEL:
2701                 error = ieee80211_ioctl_setchannel(vap, ireq);
2702                 break;
2703         case IEEE80211_IOC_POWERSAVE:
2704                 switch (ireq->i_val) {
2705                 case IEEE80211_POWERSAVE_OFF:
2706                         if (vap->iv_flags & IEEE80211_F_PMGTON) {
2707                                 ieee80211_syncflag(vap, -IEEE80211_F_PMGTON);
2708                                 error = ERESTART;
2709                         }
2710                         break;
2711                 case IEEE80211_POWERSAVE_ON:
2712                         if ((vap->iv_caps & IEEE80211_C_PMGT) == 0)
2713                                 error = EOPNOTSUPP;
2714                         else if ((vap->iv_flags & IEEE80211_F_PMGTON) == 0) {
2715                                 ieee80211_syncflag(vap, IEEE80211_F_PMGTON);
2716                                 error = ERESTART;
2717                         }
2718                         break;
2719                 default:
2720                         error = EINVAL;
2721                         break;
2722                 }
2723                 break;
2724         case IEEE80211_IOC_POWERSAVESLEEP:
2725                 if (ireq->i_val < 0)
2726                         return EINVAL;
2727                 ic->ic_lintval = ireq->i_val;
2728                 error = ERESTART;
2729                 break;
2730         case IEEE80211_IOC_RTSTHRESHOLD:
2731                 if (!(IEEE80211_RTS_MIN <= ireq->i_val &&
2732                       ireq->i_val <= IEEE80211_RTS_MAX))
2733                         return EINVAL;
2734                 vap->iv_rtsthreshold = ireq->i_val;
2735                 error = ERESTART;
2736                 break;
2737         case IEEE80211_IOC_PROTMODE:
2738                 if (ireq->i_val > IEEE80211_PROT_RTSCTS)
2739                         return EINVAL;
2740                 ic->ic_protmode = (enum ieee80211_protmode)ireq->i_val;
2741                 /* NB: if not operating in 11g this can wait */
2742                 if (ic->ic_bsschan != IEEE80211_CHAN_ANYC &&
2743                     IEEE80211_IS_CHAN_ANYG(ic->ic_bsschan))
2744                         error = ERESTART;
2745                 break;
2746         case IEEE80211_IOC_TXPOWER:
2747                 if ((ic->ic_caps & IEEE80211_C_TXPMGT) == 0)
2748                         return EOPNOTSUPP;
2749                 if (!(IEEE80211_TXPOWER_MIN <= ireq->i_val &&
2750                       ireq->i_val <= IEEE80211_TXPOWER_MAX))
2751                         return EINVAL;
2752                 ic->ic_txpowlimit = ireq->i_val;
2753                 error = ERESTART;
2754                 break;
2755         case IEEE80211_IOC_ROAMING:
2756                 if (!(IEEE80211_ROAMING_DEVICE <= ireq->i_val &&
2757                     ireq->i_val <= IEEE80211_ROAMING_MANUAL))
2758                         return EINVAL;
2759                 vap->iv_roaming = (enum ieee80211_roamingmode)ireq->i_val;
2760                 /* XXXX reset? */
2761                 break;
2762         case IEEE80211_IOC_PRIVACY:
2763                 if (ireq->i_val) {
2764                         /* XXX check for key state? */
2765                         vap->iv_flags |= IEEE80211_F_PRIVACY;
2766                 } else
2767                         vap->iv_flags &= ~IEEE80211_F_PRIVACY;
2768                 /* XXX ERESTART? */
2769                 break;
2770         case IEEE80211_IOC_DROPUNENCRYPTED:
2771                 if (ireq->i_val)
2772                         vap->iv_flags |= IEEE80211_F_DROPUNENC;
2773                 else
2774                         vap->iv_flags &= ~IEEE80211_F_DROPUNENC;
2775                 /* XXX ERESTART? */
2776                 break;
2777         case IEEE80211_IOC_WPAKEY:
2778                 error = ieee80211_ioctl_setkey(vap, ireq);
2779                 break;
2780         case IEEE80211_IOC_DELKEY:
2781                 error = ieee80211_ioctl_delkey(vap, ireq);
2782                 break;
2783         case IEEE80211_IOC_MLME:
2784                 error = ieee80211_ioctl_setmlme(vap, ireq);
2785                 break;
2786         case IEEE80211_IOC_COUNTERMEASURES:
2787                 if (ireq->i_val) {
2788                         if ((vap->iv_flags & IEEE80211_F_WPA) == 0)
2789                                 return EOPNOTSUPP;
2790                         vap->iv_flags |= IEEE80211_F_COUNTERM;
2791                 } else
2792                         vap->iv_flags &= ~IEEE80211_F_COUNTERM;
2793                 /* XXX ERESTART? */
2794                 break;
2795         case IEEE80211_IOC_WPA:
2796                 if (ireq->i_val > 3)
2797                         return EINVAL;
2798                 /* XXX verify ciphers available */
2799                 flags = vap->iv_flags & ~IEEE80211_F_WPA;
2800                 switch (ireq->i_val) {
2801                 case 1:
2802                         if (!(vap->iv_caps & IEEE80211_C_WPA1))
2803                                 return EOPNOTSUPP;
2804                         flags |= IEEE80211_F_WPA1;
2805                         break;
2806                 case 2:
2807                         if (!(vap->iv_caps & IEEE80211_C_WPA2))
2808                                 return EOPNOTSUPP;
2809                         flags |= IEEE80211_F_WPA2;
2810                         break;
2811                 case 3:
2812                         if ((vap->iv_caps & IEEE80211_C_WPA) != IEEE80211_C_WPA)
2813                                 return EOPNOTSUPP;
2814                         flags |= IEEE80211_F_WPA1 | IEEE80211_F_WPA2;
2815                         break;
2816                 default:        /*  Can't set any -> error */
2817                         return EOPNOTSUPP;
2818                 }
2819                 vap->iv_flags = flags;
2820                 error = ERESTART;       /* NB: can change beacon frame */
2821                 break;
2822         case IEEE80211_IOC_WME:
2823                 if (ireq->i_val) {
2824                         if ((vap->iv_caps & IEEE80211_C_WME) == 0)
2825                                 return EOPNOTSUPP;
2826                         ieee80211_syncflag(vap, IEEE80211_F_WME);
2827                 } else
2828                         ieee80211_syncflag(vap, -IEEE80211_F_WME);
2829                 error = ERESTART;       /* NB: can change beacon frame */
2830                 break;
2831         case IEEE80211_IOC_HIDESSID:
2832                 if (ireq->i_val)
2833                         vap->iv_flags |= IEEE80211_F_HIDESSID;
2834                 else
2835                         vap->iv_flags &= ~IEEE80211_F_HIDESSID;
2836                 error = ERESTART;               /* XXX ENETRESET? */
2837                 break;
2838         case IEEE80211_IOC_APBRIDGE:
2839                 if (ireq->i_val == 0)
2840                         vap->iv_flags |= IEEE80211_F_NOBRIDGE;
2841                 else
2842                         vap->iv_flags &= ~IEEE80211_F_NOBRIDGE;
2843                 break;
2844         case IEEE80211_IOC_BSSID:
2845                 if (ireq->i_len != sizeof(tmpbssid))
2846                         return EINVAL;
2847                 error = copyin(ireq->i_data, tmpbssid, ireq->i_len);
2848                 if (error)
2849                         break;
2850                 IEEE80211_ADDR_COPY(vap->iv_des_bssid, tmpbssid);
2851                 if (IEEE80211_ADDR_EQ(vap->iv_des_bssid, zerobssid))
2852                         vap->iv_flags &= ~IEEE80211_F_DESBSSID;
2853                 else
2854                         vap->iv_flags |= IEEE80211_F_DESBSSID;
2855                 error = ENETRESET;
2856                 break;
2857         case IEEE80211_IOC_CHANLIST:
2858                 error = ieee80211_ioctl_setchanlist(vap, ireq);
2859                 break;
2860 #define OLD_IEEE80211_IOC_SCAN_REQ      23
2861 #ifdef OLD_IEEE80211_IOC_SCAN_REQ
2862         case OLD_IEEE80211_IOC_SCAN_REQ:
2863                 IEEE80211_DPRINTF(vap, IEEE80211_MSG_SCAN,
2864                         "%s: active scan request\n", __func__);
2865                 /*
2866                  * If we are in INIT state then the driver has never
2867                  * had a chance to setup hardware state to do a scan;
2868                  * use the state machine to get us up the SCAN state.
2869                  * Otherwise just invoke the scan machinery to start
2870                  * a one-time scan.
2871                  */
2872                 if (vap->iv_state == IEEE80211_S_INIT)
2873                         ieee80211_new_state(vap, IEEE80211_S_SCAN, 0);
2874                 else
2875                         (void) ieee80211_start_scan(vap,
2876                                 IEEE80211_SCAN_ACTIVE |
2877                                 IEEE80211_SCAN_NOPICK |
2878                                 IEEE80211_SCAN_ONCE,
2879                                 IEEE80211_SCAN_FOREVER, 0, 0,
2880                                 /* XXX use ioctl params */
2881                                 vap->iv_des_nssid, vap->iv_des_ssid);
2882                 break;
2883 #endif /* OLD_IEEE80211_IOC_SCAN_REQ */
2884         case IEEE80211_IOC_SCAN_REQ:
2885                 error = ieee80211_ioctl_scanreq(vap, ireq);
2886                 break;
2887         case IEEE80211_IOC_SCAN_CANCEL:
2888                 IEEE80211_DPRINTF(vap, IEEE80211_MSG_SCAN,
2889                     "%s: cancel scan\n", __func__);
2890                 ieee80211_cancel_scan(vap);
2891                 break;
2892         case IEEE80211_IOC_HTCONF:
2893                 if (ireq->i_val & 1)
2894                         ieee80211_syncflag_ht(vap, IEEE80211_FHT_HT);
2895                 else
2896                         ieee80211_syncflag_ht(vap, -IEEE80211_FHT_HT);
2897                 if (ireq->i_val & 2)
2898                         ieee80211_syncflag_ht(vap, IEEE80211_FHT_USEHT40);
2899                 else
2900                         ieee80211_syncflag_ht(vap, -IEEE80211_FHT_USEHT40);
2901                 error = ENETRESET;
2902                 break;
2903         case IEEE80211_IOC_ADDMAC:
2904         case IEEE80211_IOC_DELMAC:
2905                 error = ieee80211_ioctl_macmac(vap, ireq);
2906                 break;
2907         case IEEE80211_IOC_MACCMD:
2908                 error = ieee80211_ioctl_setmaccmd(vap, ireq);
2909                 break;
2910         case IEEE80211_IOC_STA_STATS:
2911                 error = ieee80211_ioctl_setstastats(vap, ireq);
2912                 break;
2913         case IEEE80211_IOC_STA_TXPOW:
2914                 error = ieee80211_ioctl_setstatxpow(vap, ireq);
2915                 break;
2916         case IEEE80211_IOC_WME_CWMIN:           /* WME: CWmin */
2917         case IEEE80211_IOC_WME_CWMAX:           /* WME: CWmax */
2918         case IEEE80211_IOC_WME_AIFS:            /* WME: AIFS */
2919         case IEEE80211_IOC_WME_TXOPLIMIT:       /* WME: txops limit */
2920         case IEEE80211_IOC_WME_ACM:             /* WME: ACM (bss only) */
2921         case IEEE80211_IOC_WME_ACKPOLICY:       /* WME: ACK policy (bss only) */
2922                 error = ieee80211_ioctl_setwmeparam(vap, ireq);
2923                 break;
2924         case IEEE80211_IOC_DTIM_PERIOD:
2925                 if (vap->iv_opmode != IEEE80211_M_HOSTAP &&
2926                     vap->iv_opmode != IEEE80211_M_MBSS &&
2927                     vap->iv_opmode != IEEE80211_M_IBSS)
2928                         return EINVAL;
2929                 if (IEEE80211_DTIM_MIN <= ireq->i_val &&
2930                     ireq->i_val <= IEEE80211_DTIM_MAX) {
2931                         vap->iv_dtim_period = ireq->i_val;
2932                         error = ENETRESET;              /* requires restart */
2933                 } else
2934                         error = EINVAL;
2935                 break;
2936         case IEEE80211_IOC_BEACON_INTERVAL:
2937                 if (vap->iv_opmode != IEEE80211_M_HOSTAP &&
2938                     vap->iv_opmode != IEEE80211_M_MBSS &&
2939                     vap->iv_opmode != IEEE80211_M_IBSS)
2940                         return EINVAL;
2941                 if (IEEE80211_BINTVAL_MIN <= ireq->i_val &&
2942                     ireq->i_val <= IEEE80211_BINTVAL_MAX) {
2943                         ic->ic_bintval = ireq->i_val;
2944                         error = ENETRESET;              /* requires restart */
2945                 } else
2946                         error = EINVAL;
2947                 break;
2948         case IEEE80211_IOC_PUREG:
2949                 if (ireq->i_val)
2950                         vap->iv_flags |= IEEE80211_F_PUREG;
2951                 else
2952                         vap->iv_flags &= ~IEEE80211_F_PUREG;
2953                 /* NB: reset only if we're operating on an 11g channel */
2954                 if (isvap11g(vap))
2955                         error = ENETRESET;
2956                 break;
2957         case IEEE80211_IOC_QUIET:
2958                 vap->iv_quiet= ireq->i_val;
2959                 break;
2960         case IEEE80211_IOC_QUIET_COUNT:
2961                 vap->iv_quiet_count=ireq->i_val;
2962                 break;
2963         case IEEE80211_IOC_QUIET_PERIOD:
2964                 vap->iv_quiet_period=ireq->i_val;
2965                 break;
2966         case IEEE80211_IOC_QUIET_OFFSET:
2967                 vap->iv_quiet_offset=ireq->i_val;
2968                 break;
2969         case IEEE80211_IOC_QUIET_DUR:
2970                 if(ireq->i_val < vap->iv_bss->ni_intval)
2971                         vap->iv_quiet_duration = ireq->i_val;
2972                 else
2973                         error = EINVAL;
2974                 break;
2975         case IEEE80211_IOC_BGSCAN:
2976                 if (ireq->i_val) {
2977                         if ((vap->iv_caps & IEEE80211_C_BGSCAN) == 0)
2978                                 return EOPNOTSUPP;
2979                         vap->iv_flags |= IEEE80211_F_BGSCAN;
2980                 } else
2981                         vap->iv_flags &= ~IEEE80211_F_BGSCAN;
2982                 break;
2983         case IEEE80211_IOC_BGSCAN_IDLE:
2984                 if (ireq->i_val >= IEEE80211_BGSCAN_IDLE_MIN)
2985                         vap->iv_bgscanidle = ireq->i_val*hz/1000;
2986                 else
2987                         error = EINVAL;
2988                 break;
2989         case IEEE80211_IOC_BGSCAN_INTERVAL:
2990                 if (ireq->i_val >= IEEE80211_BGSCAN_INTVAL_MIN)
2991                         vap->iv_bgscanintvl = ireq->i_val*hz;
2992                 else
2993                         error = EINVAL;
2994                 break;
2995         case IEEE80211_IOC_SCANVALID:
2996                 if (ireq->i_val >= IEEE80211_SCAN_VALID_MIN)
2997                         vap->iv_scanvalid = ireq->i_val*hz;
2998                 else
2999                         error = EINVAL;
3000                 break;
3001         case IEEE80211_IOC_FRAGTHRESHOLD:
3002                 if ((vap->iv_caps & IEEE80211_C_TXFRAG) == 0 &&
3003                     ireq->i_val != IEEE80211_FRAG_MAX)
3004                         return EOPNOTSUPP;
3005                 if (!(IEEE80211_FRAG_MIN <= ireq->i_val &&
3006                       ireq->i_val <= IEEE80211_FRAG_MAX))
3007                         return EINVAL;
3008                 vap->iv_fragthreshold = ireq->i_val;
3009                 error = ERESTART;
3010                 break;
3011         case IEEE80211_IOC_BURST:
3012                 if (ireq->i_val) {
3013                         if ((vap->iv_caps & IEEE80211_C_BURST) == 0)
3014                                 return EOPNOTSUPP;
3015                         ieee80211_syncflag(vap, IEEE80211_F_BURST);
3016                 } else
3017                         ieee80211_syncflag(vap, -IEEE80211_F_BURST);
3018                 error = ERESTART;
3019                 break;
3020         case IEEE80211_IOC_BMISSTHRESHOLD:
3021                 if (!(IEEE80211_HWBMISS_MIN <= ireq->i_val &&
3022                       ireq->i_val <= IEEE80211_HWBMISS_MAX))
3023                         return EINVAL;
3024                 vap->iv_bmissthreshold = ireq->i_val;
3025                 error = ERESTART;
3026                 break;
3027         case IEEE80211_IOC_CURCHAN:
3028                 error = ieee80211_ioctl_setcurchan(vap, ireq);
3029                 break;
3030         case IEEE80211_IOC_SHORTGI:
3031                 if (ireq->i_val) {
3032 #define IEEE80211_HTCAP_SHORTGI \
3033         (IEEE80211_HTCAP_SHORTGI20 | IEEE80211_HTCAP_SHORTGI40)
3034                         if (((ireq->i_val ^ vap->iv_htcaps) & IEEE80211_HTCAP_SHORTGI) != 0)
3035                                 return EINVAL;
3036                         if (ireq->i_val & IEEE80211_HTCAP_SHORTGI20)
3037                                 vap->iv_flags_ht |= IEEE80211_FHT_SHORTGI20;
3038                         if (ireq->i_val & IEEE80211_HTCAP_SHORTGI40)
3039                                 vap->iv_flags_ht |= IEEE80211_FHT_SHORTGI40;
3040 #undef IEEE80211_HTCAP_SHORTGI
3041                 } else
3042                         vap->iv_flags_ht &=
3043                             ~(IEEE80211_FHT_SHORTGI20 | IEEE80211_FHT_SHORTGI40);
3044                 error = ERESTART;
3045                 break;
3046         case IEEE80211_IOC_AMPDU:
3047                 if (ireq->i_val && (vap->iv_htcaps & IEEE80211_HTC_AMPDU) == 0)
3048                         return EINVAL;
3049                 if (ireq->i_val & 1)
3050                         vap->iv_flags_ht |= IEEE80211_FHT_AMPDU_TX;
3051                 else
3052                         vap->iv_flags_ht &= ~IEEE80211_FHT_AMPDU_TX;
3053                 if (ireq->i_val & 2)
3054                         vap->iv_flags_ht |= IEEE80211_FHT_AMPDU_RX;
3055                 else
3056                         vap->iv_flags_ht &= ~IEEE80211_FHT_AMPDU_RX;
3057                 /* NB: reset only if we're operating on an 11n channel */
3058                 if (isvapht(vap))
3059                         error = ERESTART;
3060                 break;
3061         case IEEE80211_IOC_AMPDU_LIMIT:
3062                 if (!(IEEE80211_HTCAP_MAXRXAMPDU_8K <= ireq->i_val &&
3063                       ireq->i_val <= IEEE80211_HTCAP_MAXRXAMPDU_64K))
3064                         return EINVAL;
3065                 if (vap->iv_opmode == IEEE80211_M_HOSTAP)
3066                         vap->iv_ampdu_rxmax = ireq->i_val;
3067                 else
3068                         vap->iv_ampdu_limit = ireq->i_val;
3069                 error = ERESTART;
3070                 break;
3071         case IEEE80211_IOC_AMPDU_DENSITY:
3072                 if (!(IEEE80211_HTCAP_MPDUDENSITY_NA <= ireq->i_val &&
3073                       ireq->i_val <= IEEE80211_HTCAP_MPDUDENSITY_16))
3074                         return EINVAL;
3075                 vap->iv_ampdu_density = ireq->i_val;
3076                 error = ERESTART;
3077                 break;
3078         case IEEE80211_IOC_AMSDU:
3079                 if (ireq->i_val && (vap->iv_htcaps & IEEE80211_HTC_AMSDU) == 0)
3080                         return EINVAL;
3081                 if (ireq->i_val & 1)
3082                         vap->iv_flags_ht |= IEEE80211_FHT_AMSDU_TX;
3083                 else
3084                         vap->iv_flags_ht &= ~IEEE80211_FHT_AMSDU_TX;
3085                 if (ireq->i_val & 2)
3086                         vap->iv_flags_ht |= IEEE80211_FHT_AMSDU_RX;
3087                 else
3088                         vap->iv_flags_ht &= ~IEEE80211_FHT_AMSDU_RX;
3089                 /* NB: reset only if we're operating on an 11n channel */
3090                 if (isvapht(vap))
3091                         error = ERESTART;
3092                 break;
3093         case IEEE80211_IOC_AMSDU_LIMIT:
3094                 /* XXX validate */
3095                 vap->iv_amsdu_limit = ireq->i_val;      /* XXX truncation? */
3096                 break;
3097         case IEEE80211_IOC_PUREN:
3098                 if (ireq->i_val) {
3099                         if ((vap->iv_flags_ht & IEEE80211_FHT_HT) == 0)
3100                                 return EINVAL;
3101                         vap->iv_flags_ht |= IEEE80211_FHT_PUREN;
3102                 } else
3103                         vap->iv_flags_ht &= ~IEEE80211_FHT_PUREN;
3104                 /* NB: reset only if we're operating on an 11n channel */
3105                 if (isvapht(vap))
3106                         error = ERESTART;
3107                 break;
3108         case IEEE80211_IOC_DOTH:
3109                 if (ireq->i_val) {
3110 #if 0
3111                         /* XXX no capability */
3112                         if ((vap->iv_caps & IEEE80211_C_DOTH) == 0)
3113                                 return EOPNOTSUPP;
3114 #endif
3115                         vap->iv_flags |= IEEE80211_F_DOTH;
3116                 } else
3117                         vap->iv_flags &= ~IEEE80211_F_DOTH;
3118                 error = ENETRESET;
3119                 break;
3120         case IEEE80211_IOC_REGDOMAIN:
3121                 error = ieee80211_ioctl_setregdomain(vap, ireq);
3122                 break;
3123         case IEEE80211_IOC_ROAM:
3124                 error = ieee80211_ioctl_setroam(vap, ireq);
3125                 break;
3126         case IEEE80211_IOC_TXPARAMS:
3127                 error = ieee80211_ioctl_settxparams(vap, ireq);
3128                 break;
3129         case IEEE80211_IOC_HTCOMPAT:
3130                 if (ireq->i_val) {
3131                         if ((vap->iv_flags_ht & IEEE80211_FHT_HT) == 0)
3132                                 return EOPNOTSUPP;
3133                         vap->iv_flags_ht |= IEEE80211_FHT_HTCOMPAT;
3134                 } else
3135                         vap->iv_flags_ht &= ~IEEE80211_FHT_HTCOMPAT;
3136                 /* NB: reset only if we're operating on an 11n channel */
3137                 if (isvapht(vap))
3138                         error = ERESTART;
3139                 break;
3140         case IEEE80211_IOC_DWDS:
3141                 if (ireq->i_val) {
3142                         /* NB: DWDS only makes sense for WDS-capable devices */
3143                         if ((ic->ic_caps & IEEE80211_C_WDS) == 0)
3144                                 return EOPNOTSUPP;
3145                         /* NB: DWDS is used only with ap+sta vaps */
3146                         if (vap->iv_opmode != IEEE80211_M_HOSTAP &&
3147                             vap->iv_opmode != IEEE80211_M_STA)
3148                                 return EINVAL;
3149                         vap->iv_flags |= IEEE80211_F_DWDS;
3150                         if (vap->iv_opmode == IEEE80211_M_STA)
3151                                 vap->iv_flags_ext |= IEEE80211_FEXT_4ADDR;
3152                 } else {
3153                         vap->iv_flags &= ~IEEE80211_F_DWDS;
3154                         if (vap->iv_opmode == IEEE80211_M_STA)
3155                                 vap->iv_flags_ext &= ~IEEE80211_FEXT_4ADDR;
3156                 }
3157                 break;
3158         case IEEE80211_IOC_INACTIVITY:
3159                 if (ireq->i_val)
3160                         vap->iv_flags_ext |= IEEE80211_FEXT_INACT;
3161                 else
3162                         vap->iv_flags_ext &= ~IEEE80211_FEXT_INACT;
3163                 break;
3164         case IEEE80211_IOC_APPIE:
3165                 error = ieee80211_ioctl_setappie(vap, ireq);
3166                 break;
3167         case IEEE80211_IOC_WPS:
3168                 if (ireq->i_val) {
3169                         if ((vap->iv_caps & IEEE80211_C_WPA) == 0)
3170                                 return EOPNOTSUPP;
3171                         vap->iv_flags_ext |= IEEE80211_FEXT_WPS;
3172                 } else
3173                         vap->iv_flags_ext &= ~IEEE80211_FEXT_WPS;
3174                 break;
3175         case IEEE80211_IOC_TSN:
3176                 if (ireq->i_val) {
3177                         if ((vap->iv_caps & IEEE80211_C_WPA) == 0)
3178                                 return EOPNOTSUPP;
3179                         vap->iv_flags_ext |= IEEE80211_FEXT_TSN;
3180                 } else
3181                         vap->iv_flags_ext &= ~IEEE80211_FEXT_TSN;
3182                 break;
3183         case IEEE80211_IOC_CHANSWITCH:
3184                 error = ieee80211_ioctl_chanswitch(vap, ireq);
3185                 break;
3186         case IEEE80211_IOC_DFS:
3187                 if (ireq->i_val) {
3188                         if ((vap->iv_caps & IEEE80211_C_DFS) == 0)
3189                                 return EOPNOTSUPP;
3190                         /* NB: DFS requires 11h support */
3191                         if ((vap->iv_flags & IEEE80211_F_DOTH) == 0)
3192                                 return EINVAL;
3193                         vap->iv_flags_ext |= IEEE80211_FEXT_DFS;
3194                 } else
3195                         vap->iv_flags_ext &= ~IEEE80211_FEXT_DFS;
3196                 break;
3197         case IEEE80211_IOC_DOTD:
3198                 if (ireq->i_val)
3199                         vap->iv_flags_ext |= IEEE80211_FEXT_DOTD;
3200                 else
3201                         vap->iv_flags_ext &= ~IEEE80211_FEXT_DOTD;
3202                 if (vap->iv_opmode == IEEE80211_M_STA)
3203                         error = ENETRESET;
3204                 break;
3205         case IEEE80211_IOC_HTPROTMODE:
3206                 if (ireq->i_val > IEEE80211_PROT_RTSCTS)
3207                         return EINVAL;
3208                 ic->ic_htprotmode = ireq->i_val ?
3209                     IEEE80211_PROT_RTSCTS : IEEE80211_PROT_NONE;
3210                 /* NB: if not operating in 11n this can wait */
3211                 if (isvapht(vap))
3212                         error = ERESTART;
3213                 break;
3214         case IEEE80211_IOC_STA_VLAN:
3215                 error = ieee80211_ioctl_setstavlan(vap, ireq);
3216                 break;
3217         case IEEE80211_IOC_SMPS:
3218                 if ((ireq->i_val &~ IEEE80211_HTCAP_SMPS) != 0 ||
3219                     ireq->i_val == 0x0008)      /* value of 2 is reserved */
3220                         return EINVAL;
3221                 if (ireq->i_val != IEEE80211_HTCAP_SMPS_OFF &&
3222                     (vap->iv_htcaps & IEEE80211_HTC_SMPS) == 0)
3223                         return EOPNOTSUPP;
3224                 vap->iv_htcaps = (vap->iv_htcaps &~ IEEE80211_HTCAP_SMPS) |
3225                         ireq->i_val;
3226                 /* NB: if not operating in 11n this can wait */
3227                 if (isvapht(vap))
3228                         error = ERESTART;
3229                 break;
3230         case IEEE80211_IOC_RIFS:
3231                 if (ireq->i_val != 0) {
3232                         if ((vap->iv_htcaps & IEEE80211_HTC_RIFS) == 0)
3233                                 return EOPNOTSUPP;
3234                         vap->iv_flags_ht |= IEEE80211_FHT_RIFS;
3235                 } else
3236                         vap->iv_flags_ht &= ~IEEE80211_FHT_RIFS;
3237                 /* NB: if not operating in 11n this can wait */
3238                 if (isvapht(vap))
3239                         error = ERESTART;
3240                 break;
3241         default:
3242                 error = ieee80211_ioctl_setdefault(vap, ireq);
3243                 break;
3244         }
3245         /*
3246          * The convention is that ENETRESET means an operation
3247          * requires a complete re-initialization of the device (e.g.
3248          * changing something that affects the association state).
3249          * ERESTART means the request may be handled with only a
3250          * reload of the hardware state.  We hand ERESTART requests
3251          * to the iv_reset callback so the driver can decide.  If
3252          * a device does not fillin iv_reset then it defaults to one
3253          * that returns ENETRESET.  Otherwise a driver may return
3254          * ENETRESET (in which case a full reset will be done) or
3255          * 0 to mean there's no need to do anything (e.g. when the
3256          * change has no effect on the driver/device).
3257          */
3258         if (error == ERESTART)
3259                 error = IFNET_IS_UP_RUNNING(vap->iv_ifp) ?
3260                     vap->iv_reset(vap, ireq->i_type) : 0;
3261         if (error == ENETRESET) {
3262                 /* XXX need to re-think AUTO handling */
3263                 if (IS_UP_AUTO(vap))
3264                         ieee80211_init(vap);
3265                 error = 0;
3266         }
3267         return error;
3268 }
3269
3270 /*
3271  * Rebuild the parent's multicast address list after an add/del
3272  * of a multicast address for a vap.  We have no way to tell
3273  * what happened above to optimize the work so we purge the entire
3274  * list and rebuild from scratch.  This is way expensive.
3275  * Note also the half-baked workaround for if_addmulti calling
3276  * back to the parent device; there's no way to insert mcast
3277  * entries quietly and/or cheaply.
3278  */
3279 static void
3280 ieee80211_ioctl_updatemulti(struct ieee80211com *ic)
3281 {
3282         struct ifnet *parent = ic->ic_ifp;
3283         struct ieee80211vap *vap;
3284         void *ioctl;
3285
3286         IEEE80211_LOCK(ic);
3287         if_delallmulti(parent);
3288         ioctl = parent->if_ioctl;       /* XXX WAR if_allmulti */
3289         parent->if_ioctl = NULL;
3290         TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) {
3291                 struct ifnet *ifp = vap->iv_ifp;
3292                 struct ifmultiaddr *ifma;
3293
3294                 TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
3295                         if (ifma->ifma_addr->sa_family != AF_LINK)
3296                                 continue;
3297                         (void) if_addmulti(parent, ifma->ifma_addr, NULL);
3298                 }
3299         }
3300         parent->if_ioctl = ioctl;
3301         ieee80211_runtask(ic, &ic->ic_mcast_task);
3302         IEEE80211_UNLOCK(ic);
3303 }
3304
3305 int
3306 ieee80211_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
3307 {
3308         struct ieee80211vap *vap = ifp->if_softc;
3309         struct ieee80211com *ic = vap->iv_ic;
3310         int error = 0;
3311         struct ifreq *ifr;
3312         struct ifaddr *ifa;                     /* XXX */
3313
3314         switch (cmd) {
3315         case SIOCSIFFLAGS:
3316                 IEEE80211_LOCK(ic);
3317                 ieee80211_syncifflag_locked(ic, IFF_PROMISC);
3318                 ieee80211_syncifflag_locked(ic, IFF_ALLMULTI);
3319                 if (ifp->if_flags & IFF_UP) {
3320                         /*
3321                          * Bring ourself up unless we're already operational.
3322                          * If we're the first vap and the parent is not up
3323                          * then it will automatically be brought up as a
3324                          * side-effect of bringing ourself up.
3325                          */
3326                         if (vap->iv_state == IEEE80211_S_INIT)
3327                                 ieee80211_start_locked(vap);
3328                 } else if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
3329                         /*
3330                          * Stop ourself.  If we are the last vap to be
3331                          * marked down the parent will also be taken down.
3332                          */
3333                         ieee80211_stop_locked(vap);
3334                 }
3335                 IEEE80211_UNLOCK(ic);
3336                 /* Wait for parent ioctl handler if it was queued */
3337                 ieee80211_waitfor_parent(ic);
3338                 break;
3339         case SIOCADDMULTI:
3340         case SIOCDELMULTI:
3341                 ieee80211_ioctl_updatemulti(ic);
3342                 break;
3343         case SIOCSIFMEDIA:
3344         case SIOCGIFMEDIA:
3345                 ifr = (struct ifreq *)data;
3346                 error = ifmedia_ioctl(ifp, ifr, &vap->iv_media, cmd);
3347                 break;
3348         case SIOCG80211:
3349                 error = ieee80211_ioctl_get80211(vap, cmd,
3350                                 (struct ieee80211req *) data);
3351                 break;
3352         case SIOCS80211:
3353                 error = priv_check(curthread, PRIV_NET80211_MANAGE);
3354                 if (error == 0)
3355                         error = ieee80211_ioctl_set80211(vap, cmd,
3356                                         (struct ieee80211req *) data);
3357                 break;
3358         case SIOCG80211STATS:
3359                 ifr = (struct ifreq *)data;
3360                 copyout(&vap->iv_stats, ifr->ifr_data, sizeof (vap->iv_stats));
3361                 break;
3362         case SIOCSIFMTU:
3363                 ifr = (struct ifreq *)data;
3364                 if (!(IEEE80211_MTU_MIN <= ifr->ifr_mtu &&
3365                     ifr->ifr_mtu <= IEEE80211_MTU_MAX))
3366                         error = EINVAL;
3367                 else
3368                         ifp->if_mtu = ifr->ifr_mtu;
3369                 break;
3370         case SIOCSIFADDR:
3371                 /*
3372                  * XXX Handle this directly so we can supress if_init calls.
3373                  * XXX This should be done in ether_ioctl but for the moment
3374                  * XXX there are too many other parts of the system that
3375                  * XXX set IFF_UP and so supress if_init being called when
3376                  * XXX it should be.
3377                  */
3378                 ifa = (struct ifaddr *) data;
3379                 switch (ifa->ifa_addr->sa_family) {
3380 #ifdef INET
3381                 case AF_INET:
3382                         if ((ifp->if_flags & IFF_UP) == 0) {
3383                                 ifp->if_flags |= IFF_UP;
3384                                 ifp->if_init(ifp->if_softc);
3385                         }
3386                         arp_ifinit(ifp, ifa);
3387                         break;
3388 #endif
3389 #ifdef IPX
3390                 /*
3391                  * XXX - This code is probably wrong,
3392                  *       but has been copied many times.
3393                  */
3394                 case AF_IPX: {
3395                         struct ipx_addr *ina = &(IA_SIPX(ifa)->sipx_addr);
3396
3397                         if (ipx_nullhost(*ina))
3398                                 ina->x_host = *(union ipx_host *)
3399                                     IF_LLADDR(ifp);
3400                         else
3401                                 bcopy((caddr_t) ina->x_host.c_host,
3402                                       (caddr_t) IF_LLADDR(ifp),
3403                                       ETHER_ADDR_LEN);
3404                         /* fall thru... */
3405                 }
3406 #endif
3407                 default:
3408                         if ((ifp->if_flags & IFF_UP) == 0) {
3409                                 ifp->if_flags |= IFF_UP;
3410                                 ifp->if_init(ifp->if_softc);
3411                         }
3412                         break;
3413                 }
3414                 break;
3415         /* Pass NDIS ioctls up to the driver */
3416         case SIOCGDRVSPEC:
3417         case SIOCSDRVSPEC:
3418         case SIOCGPRIVATE_0: {
3419                 struct ifnet *parent = vap->iv_ic->ic_ifp;
3420                 error = parent->if_ioctl(parent, cmd, data);
3421                 break;
3422         }
3423         default:
3424                 error = ether_ioctl(ifp, cmd, data);
3425                 break;
3426         }
3427         return error;
3428 }