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                 IEEE80211_NODE_UNLOCK(nt);
1344                 /*
1345                  * Don't do the node update inside the node
1346                  * table lock.  This unfortunately causes LORs
1347                  * with drivers and their TX paths.
1348                  */
1349                 if (ni != NULL) {
1350                         domlme(mlmeop, ni);
1351                         ieee80211_free_node(ni);
1352                 } else
1353                         error = ENOENT;
1354         } else {
1355                 ieee80211_iterate_nodes(nt, domlme, mlmeop);
1356         }
1357         return error;
1358 }
1359
1360 static __noinline int
1361 setmlme_common(struct ieee80211vap *vap, int op,
1362         const uint8_t mac[IEEE80211_ADDR_LEN], int reason)
1363 {
1364         struct ieee80211com *ic = vap->iv_ic;
1365         struct ieee80211_node_table *nt = &ic->ic_sta;
1366         struct ieee80211_node *ni;
1367         struct mlmeop mlmeop;
1368         int error;
1369
1370         error = 0;
1371         switch (op) {
1372         case IEEE80211_MLME_DISASSOC:
1373         case IEEE80211_MLME_DEAUTH:
1374                 switch (vap->iv_opmode) {
1375                 case IEEE80211_M_STA:
1376                         mlmedebug(vap, vap->iv_bss->ni_macaddr, op, reason);
1377                         /* XXX not quite right */
1378                         ieee80211_new_state(vap, IEEE80211_S_INIT, reason);
1379                         break;
1380                 case IEEE80211_M_HOSTAP:
1381                         mlmeop.vap = vap;
1382                         mlmeop.op = op;
1383                         mlmeop.reason = reason;
1384                         error = setmlme_dropsta(vap, mac, &mlmeop);
1385                         break;
1386                 case IEEE80211_M_WDS:
1387                         /* XXX user app should send raw frame? */
1388                         if (op != IEEE80211_MLME_DEAUTH) {
1389                                 error = EINVAL;
1390                                 break;
1391                         }
1392 #if 0
1393                         /* XXX accept any address, simplifies user code */
1394                         if (!IEEE80211_ADDR_EQ(mac, vap->iv_bss->ni_macaddr)) {
1395                                 error = EINVAL;
1396                                 break;
1397                         }
1398 #endif
1399                         mlmedebug(vap, vap->iv_bss->ni_macaddr, op, reason);
1400                         ni = ieee80211_ref_node(vap->iv_bss);
1401                         IEEE80211_SEND_MGMT(ni,
1402                             IEEE80211_FC0_SUBTYPE_DEAUTH, reason);
1403                         ieee80211_free_node(ni);
1404                         break;
1405                 case IEEE80211_M_MBSS:
1406                         IEEE80211_NODE_LOCK(nt);
1407                         ni = ieee80211_find_node_locked(nt, mac);
1408                         /*
1409                          * Don't do the node update inside the node
1410                          * table lock.  This unfortunately causes LORs
1411                          * with drivers and their TX paths.
1412                          */
1413                         IEEE80211_NODE_UNLOCK(nt);
1414                         if (ni != NULL) {
1415                                 ieee80211_node_leave(ni);
1416                                 ieee80211_free_node(ni);
1417                         } else {
1418                                 error = ENOENT;
1419                         }
1420                         break;
1421                 default:
1422                         error = EINVAL;
1423                         break;
1424                 }
1425                 break;
1426         case IEEE80211_MLME_AUTHORIZE:
1427         case IEEE80211_MLME_UNAUTHORIZE:
1428                 if (vap->iv_opmode != IEEE80211_M_HOSTAP &&
1429                     vap->iv_opmode != IEEE80211_M_WDS) {
1430                         error = EINVAL;
1431                         break;
1432                 }
1433                 IEEE80211_NODE_LOCK(nt);
1434                 ni = ieee80211_find_vap_node_locked(nt, vap, mac);
1435                 /*
1436                  * Don't do the node update inside the node
1437                  * table lock.  This unfortunately causes LORs
1438                  * with drivers and their TX paths.
1439                  */
1440                 IEEE80211_NODE_UNLOCK(nt);
1441                 if (ni != NULL) {
1442                         mlmedebug(vap, mac, op, reason);
1443                         if (op == IEEE80211_MLME_AUTHORIZE)
1444                                 ieee80211_node_authorize(ni);
1445                         else
1446                                 ieee80211_node_unauthorize(ni);
1447                         ieee80211_free_node(ni);
1448                 } else
1449                         error = ENOENT;
1450                 break;
1451         case IEEE80211_MLME_AUTH:
1452                 if (vap->iv_opmode != IEEE80211_M_HOSTAP) {
1453                         error = EINVAL;
1454                         break;
1455                 }
1456                 IEEE80211_NODE_LOCK(nt);
1457                 ni = ieee80211_find_vap_node_locked(nt, vap, mac);
1458                 /*
1459                  * Don't do the node update inside the node
1460                  * table lock.  This unfortunately causes LORs
1461                  * with drivers and their TX paths.
1462                  */
1463                 IEEE80211_NODE_UNLOCK(nt);
1464                 if (ni != NULL) {
1465                         mlmedebug(vap, mac, op, reason);
1466                         if (reason == IEEE80211_STATUS_SUCCESS) {
1467                                 IEEE80211_SEND_MGMT(ni,
1468                                     IEEE80211_FC0_SUBTYPE_AUTH, 2);
1469                                 /*
1470                                  * For shared key auth, just continue the
1471                                  * exchange.  Otherwise when 802.1x is not in
1472                                  * use mark the port authorized at this point
1473                                  * so traffic can flow.
1474                                  */
1475                                 if (ni->ni_authmode != IEEE80211_AUTH_8021X &&
1476                                     ni->ni_challenge == NULL)
1477                                       ieee80211_node_authorize(ni);
1478                         } else {
1479                                 vap->iv_stats.is_rx_acl++;
1480                                 ieee80211_send_error(ni, ni->ni_macaddr,
1481                                     IEEE80211_FC0_SUBTYPE_AUTH, 2|(reason<<16));
1482                                 ieee80211_node_leave(ni);
1483                         }
1484                         ieee80211_free_node(ni);
1485                 } else
1486                         error = ENOENT;
1487                 break;
1488         default:
1489                 error = EINVAL;
1490                 break;
1491         }
1492         return error;
1493 }
1494
1495 struct scanlookup {
1496         const uint8_t *mac;
1497         int esslen;
1498         const uint8_t *essid;
1499         const struct ieee80211_scan_entry *se;
1500 };
1501
1502 /*
1503  * Match mac address and any ssid.
1504  */
1505 static void
1506 mlmelookup(void *arg, const struct ieee80211_scan_entry *se)
1507 {
1508         struct scanlookup *look = arg;
1509
1510         if (!IEEE80211_ADDR_EQ(look->mac, se->se_macaddr))
1511                 return;
1512         if (look->esslen != 0) {
1513                 if (se->se_ssid[1] != look->esslen)
1514                         return;
1515                 if (memcmp(look->essid, se->se_ssid+2, look->esslen))
1516                         return;
1517         }
1518         look->se = se;
1519 }
1520
1521 static __noinline int
1522 setmlme_assoc_sta(struct ieee80211vap *vap,
1523         const uint8_t mac[IEEE80211_ADDR_LEN], int ssid_len,
1524         const uint8_t ssid[IEEE80211_NWID_LEN])
1525 {
1526         struct scanlookup lookup;
1527
1528         KASSERT(vap->iv_opmode == IEEE80211_M_STA,
1529             ("expected opmode STA not %s",
1530             ieee80211_opmode_name[vap->iv_opmode]));
1531
1532         /* NB: this is racey if roaming is !manual */
1533         lookup.se = NULL;
1534         lookup.mac = mac;
1535         lookup.esslen = ssid_len;
1536         lookup.essid = ssid;
1537         ieee80211_scan_iterate(vap, mlmelookup, &lookup);
1538         if (lookup.se == NULL)
1539                 return ENOENT;
1540         mlmedebug(vap, mac, IEEE80211_MLME_ASSOC, 0);
1541         if (!ieee80211_sta_join(vap, lookup.se->se_chan, lookup.se))
1542                 return EIO;             /* XXX unique but could be better */
1543         return 0;
1544 }
1545
1546 static __noinline int
1547 setmlme_assoc_adhoc(struct ieee80211vap *vap,
1548         const uint8_t mac[IEEE80211_ADDR_LEN], int ssid_len,
1549         const uint8_t ssid[IEEE80211_NWID_LEN])
1550 {
1551         struct ieee80211_scan_req sr;
1552
1553         KASSERT(vap->iv_opmode == IEEE80211_M_IBSS ||
1554             vap->iv_opmode == IEEE80211_M_AHDEMO,
1555             ("expected opmode IBSS or AHDEMO not %s",
1556             ieee80211_opmode_name[vap->iv_opmode]));
1557
1558         if (ssid_len == 0)
1559                 return EINVAL;
1560
1561         /* NB: IEEE80211_IOC_SSID call missing for ap_scan=2. */
1562         memset(vap->iv_des_ssid[0].ssid, 0, IEEE80211_NWID_LEN);
1563         vap->iv_des_ssid[0].len = ssid_len;
1564         memcpy(vap->iv_des_ssid[0].ssid, ssid, ssid_len);
1565         vap->iv_des_nssid = 1;
1566
1567         memset(&sr, 0, sizeof(sr));
1568         sr.sr_flags = IEEE80211_IOC_SCAN_ACTIVE | IEEE80211_IOC_SCAN_ONCE;
1569         sr.sr_duration = IEEE80211_IOC_SCAN_FOREVER;
1570         memcpy(sr.sr_ssid[0].ssid, ssid, ssid_len);
1571         sr.sr_ssid[0].len = ssid_len;
1572         sr.sr_nssid = 1;
1573
1574         return ieee80211_scanreq(vap, &sr);
1575 }
1576
1577 static __noinline int
1578 ieee80211_ioctl_setmlme(struct ieee80211vap *vap, struct ieee80211req *ireq)
1579 {
1580         struct ieee80211req_mlme mlme;
1581         int error;
1582
1583         if (ireq->i_len != sizeof(mlme))
1584                 return EINVAL;
1585         error = copyin(ireq->i_data, &mlme, sizeof(mlme));
1586         if (error)
1587                 return error;
1588         if  (vap->iv_opmode == IEEE80211_M_STA &&
1589             mlme.im_op == IEEE80211_MLME_ASSOC)
1590                 return setmlme_assoc_sta(vap, mlme.im_macaddr,
1591                     vap->iv_des_ssid[0].len, vap->iv_des_ssid[0].ssid);
1592         else if (mlme.im_op == IEEE80211_MLME_ASSOC)
1593                 return setmlme_assoc_adhoc(vap, mlme.im_macaddr,
1594                     mlme.im_ssid_len, mlme.im_ssid);
1595         else
1596                 return setmlme_common(vap, mlme.im_op,
1597                     mlme.im_macaddr, mlme.im_reason);
1598 }
1599
1600 static __noinline int
1601 ieee80211_ioctl_macmac(struct ieee80211vap *vap, struct ieee80211req *ireq)
1602 {
1603         uint8_t mac[IEEE80211_ADDR_LEN];
1604         const struct ieee80211_aclator *acl = vap->iv_acl;
1605         int error;
1606
1607         if (ireq->i_len != sizeof(mac))
1608                 return EINVAL;
1609         error = copyin(ireq->i_data, mac, ireq->i_len);
1610         if (error)
1611                 return error;
1612         if (acl == NULL) {
1613                 acl = ieee80211_aclator_get("mac");
1614                 if (acl == NULL || !acl->iac_attach(vap))
1615                         return EINVAL;
1616                 vap->iv_acl = acl;
1617         }
1618         if (ireq->i_type == IEEE80211_IOC_ADDMAC)
1619                 acl->iac_add(vap, mac);
1620         else
1621                 acl->iac_remove(vap, mac);
1622         return 0;
1623 }
1624
1625 static __noinline int
1626 ieee80211_ioctl_setmaccmd(struct ieee80211vap *vap, struct ieee80211req *ireq)
1627 {
1628         const struct ieee80211_aclator *acl = vap->iv_acl;
1629
1630         switch (ireq->i_val) {
1631         case IEEE80211_MACCMD_POLICY_OPEN:
1632         case IEEE80211_MACCMD_POLICY_ALLOW:
1633         case IEEE80211_MACCMD_POLICY_DENY:
1634         case IEEE80211_MACCMD_POLICY_RADIUS:
1635                 if (acl == NULL) {
1636                         acl = ieee80211_aclator_get("mac");
1637                         if (acl == NULL || !acl->iac_attach(vap))
1638                                 return EINVAL;
1639                         vap->iv_acl = acl;
1640                 }
1641                 acl->iac_setpolicy(vap, ireq->i_val);
1642                 break;
1643         case IEEE80211_MACCMD_FLUSH:
1644                 if (acl != NULL)
1645                         acl->iac_flush(vap);
1646                 /* NB: silently ignore when not in use */
1647                 break;
1648         case IEEE80211_MACCMD_DETACH:
1649                 if (acl != NULL) {
1650                         vap->iv_acl = NULL;
1651                         acl->iac_detach(vap);
1652                 }
1653                 break;
1654         default:
1655                 if (acl == NULL)
1656                         return EINVAL;
1657                 else
1658                         return acl->iac_setioctl(vap, ireq);
1659         }
1660         return 0;
1661 }
1662
1663 static __noinline int
1664 ieee80211_ioctl_setchanlist(struct ieee80211vap *vap, struct ieee80211req *ireq)
1665 {
1666         struct ieee80211com *ic = vap->iv_ic;
1667         uint8_t *chanlist, *list;
1668         int i, nchan, maxchan, error;
1669
1670         if (ireq->i_len > sizeof(ic->ic_chan_active))
1671                 ireq->i_len = sizeof(ic->ic_chan_active);
1672         list = malloc(ireq->i_len + IEEE80211_CHAN_BYTES, M_TEMP,
1673             M_NOWAIT | M_ZERO);
1674         if (list == NULL)
1675                 return ENOMEM;
1676         error = copyin(ireq->i_data, list, ireq->i_len);
1677         if (error) {
1678                 free(list, M_TEMP);
1679                 return error;
1680         }
1681         nchan = 0;
1682         chanlist = list + ireq->i_len;          /* NB: zero'd already */
1683         maxchan = ireq->i_len * NBBY;
1684         for (i = 0; i < ic->ic_nchans; i++) {
1685                 const struct ieee80211_channel *c = &ic->ic_channels[i];
1686                 /*
1687                  * Calculate the intersection of the user list and the
1688                  * available channels so users can do things like specify
1689                  * 1-255 to get all available channels.
1690                  */
1691                 if (c->ic_ieee < maxchan && isset(list, c->ic_ieee)) {
1692                         setbit(chanlist, c->ic_ieee);
1693                         nchan++;
1694                 }
1695         }
1696         if (nchan == 0) {
1697                 free(list, M_TEMP);
1698                 return EINVAL;
1699         }
1700         if (ic->ic_bsschan != IEEE80211_CHAN_ANYC &&    /* XXX */
1701             isclr(chanlist, ic->ic_bsschan->ic_ieee))
1702                 ic->ic_bsschan = IEEE80211_CHAN_ANYC;
1703         memcpy(ic->ic_chan_active, chanlist, IEEE80211_CHAN_BYTES);
1704         ieee80211_scan_flush(vap);
1705         free(list, M_TEMP);
1706         return ENETRESET;
1707 }
1708
1709 static __noinline int
1710 ieee80211_ioctl_setstastats(struct ieee80211vap *vap, struct ieee80211req *ireq)
1711 {
1712         struct ieee80211_node *ni;
1713         uint8_t macaddr[IEEE80211_ADDR_LEN];
1714         int error;
1715
1716         /*
1717          * NB: we could copyin ieee80211req_sta_stats so apps
1718          *     could make selective changes but that's overkill;
1719          *     just clear all stats for now.
1720          */
1721         if (ireq->i_len < IEEE80211_ADDR_LEN)
1722                 return EINVAL;
1723         error = copyin(ireq->i_data, macaddr, IEEE80211_ADDR_LEN);
1724         if (error != 0)
1725                 return error;
1726         ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap, macaddr);
1727         if (ni == NULL)
1728                 return ENOENT;
1729         /* XXX require ni_vap == vap? */
1730         memset(&ni->ni_stats, 0, sizeof(ni->ni_stats));
1731         ieee80211_free_node(ni);
1732         return 0;
1733 }
1734
1735 static __noinline int
1736 ieee80211_ioctl_setstatxpow(struct ieee80211vap *vap, struct ieee80211req *ireq)
1737 {
1738         struct ieee80211_node *ni;
1739         struct ieee80211req_sta_txpow txpow;
1740         int error;
1741
1742         if (ireq->i_len != sizeof(txpow))
1743                 return EINVAL;
1744         error = copyin(ireq->i_data, &txpow, sizeof(txpow));
1745         if (error != 0)
1746                 return error;
1747         ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap, txpow.it_macaddr);
1748         if (ni == NULL)
1749                 return ENOENT;
1750         ni->ni_txpower = txpow.it_txpow;
1751         ieee80211_free_node(ni);
1752         return error;
1753 }
1754
1755 static __noinline int
1756 ieee80211_ioctl_setwmeparam(struct ieee80211vap *vap, struct ieee80211req *ireq)
1757 {
1758         struct ieee80211com *ic = vap->iv_ic;
1759         struct ieee80211_wme_state *wme = &ic->ic_wme;
1760         struct wmeParams *wmep, *chanp;
1761         int isbss, ac;
1762
1763         if ((ic->ic_caps & IEEE80211_C_WME) == 0)
1764                 return EOPNOTSUPP;
1765
1766         isbss = (ireq->i_len & IEEE80211_WMEPARAM_BSS);
1767         ac = (ireq->i_len & IEEE80211_WMEPARAM_VAL);
1768         if (ac >= WME_NUM_AC)
1769                 ac = WME_AC_BE;
1770         if (isbss) {
1771                 chanp = &wme->wme_bssChanParams.cap_wmeParams[ac];
1772                 wmep = &wme->wme_wmeBssChanParams.cap_wmeParams[ac];
1773         } else {
1774                 chanp = &wme->wme_chanParams.cap_wmeParams[ac];
1775                 wmep = &wme->wme_wmeChanParams.cap_wmeParams[ac];
1776         }
1777         switch (ireq->i_type) {
1778         case IEEE80211_IOC_WME_CWMIN:           /* WME: CWmin */
1779                 if (isbss) {
1780                         wmep->wmep_logcwmin = ireq->i_val;
1781                         if ((wme->wme_flags & WME_F_AGGRMODE) == 0)
1782                                 chanp->wmep_logcwmin = ireq->i_val;
1783                 } else {
1784                         wmep->wmep_logcwmin = chanp->wmep_logcwmin =
1785                                 ireq->i_val;
1786                 }
1787                 break;
1788         case IEEE80211_IOC_WME_CWMAX:           /* WME: CWmax */
1789                 if (isbss) {
1790                         wmep->wmep_logcwmax = ireq->i_val;
1791                         if ((wme->wme_flags & WME_F_AGGRMODE) == 0)
1792                                 chanp->wmep_logcwmax = ireq->i_val;
1793                 } else {
1794                         wmep->wmep_logcwmax = chanp->wmep_logcwmax =
1795                                 ireq->i_val;
1796                 }
1797                 break;
1798         case IEEE80211_IOC_WME_AIFS:            /* WME: AIFS */
1799                 if (isbss) {
1800                         wmep->wmep_aifsn = ireq->i_val;
1801                         if ((wme->wme_flags & WME_F_AGGRMODE) == 0)
1802                                 chanp->wmep_aifsn = ireq->i_val;
1803                 } else {
1804                         wmep->wmep_aifsn = chanp->wmep_aifsn = ireq->i_val;
1805                 }
1806                 break;
1807         case IEEE80211_IOC_WME_TXOPLIMIT:       /* WME: txops limit */
1808                 if (isbss) {
1809                         wmep->wmep_txopLimit = ireq->i_val;
1810                         if ((wme->wme_flags & WME_F_AGGRMODE) == 0)
1811                                 chanp->wmep_txopLimit = ireq->i_val;
1812                 } else {
1813                         wmep->wmep_txopLimit = chanp->wmep_txopLimit =
1814                                 ireq->i_val;
1815                 }
1816                 break;
1817         case IEEE80211_IOC_WME_ACM:             /* WME: ACM (bss only) */
1818                 wmep->wmep_acm = ireq->i_val;
1819                 if ((wme->wme_flags & WME_F_AGGRMODE) == 0)
1820                         chanp->wmep_acm = ireq->i_val;
1821                 break;
1822         case IEEE80211_IOC_WME_ACKPOLICY:       /* WME: ACK policy (!bss only)*/
1823                 wmep->wmep_noackPolicy = chanp->wmep_noackPolicy =
1824                         (ireq->i_val) == 0;
1825                 break;
1826         }
1827         ieee80211_wme_updateparams(vap);
1828         return 0;
1829 }
1830
1831 static int
1832 find11gchannel(struct ieee80211com *ic, int start, int freq)
1833 {
1834         const struct ieee80211_channel *c;
1835         int i;
1836
1837         for (i = start+1; i < ic->ic_nchans; i++) {
1838                 c = &ic->ic_channels[i];
1839                 if (c->ic_freq == freq && IEEE80211_IS_CHAN_ANYG(c))
1840                         return 1;
1841         }
1842         /* NB: should not be needed but in case things are mis-sorted */
1843         for (i = 0; i < start; i++) {
1844                 c = &ic->ic_channels[i];
1845                 if (c->ic_freq == freq && IEEE80211_IS_CHAN_ANYG(c))
1846                         return 1;
1847         }
1848         return 0;
1849 }
1850
1851 static struct ieee80211_channel *
1852 findchannel(struct ieee80211com *ic, int ieee, int mode)
1853 {
1854         static const u_int chanflags[IEEE80211_MODE_MAX] = {
1855             [IEEE80211_MODE_AUTO]       = 0,
1856             [IEEE80211_MODE_11A]        = IEEE80211_CHAN_A,
1857             [IEEE80211_MODE_11B]        = IEEE80211_CHAN_B,
1858             [IEEE80211_MODE_11G]        = IEEE80211_CHAN_G,
1859             [IEEE80211_MODE_FH]         = IEEE80211_CHAN_FHSS,
1860             [IEEE80211_MODE_TURBO_A]    = IEEE80211_CHAN_108A,
1861             [IEEE80211_MODE_TURBO_G]    = IEEE80211_CHAN_108G,
1862             [IEEE80211_MODE_STURBO_A]   = IEEE80211_CHAN_STURBO,
1863             [IEEE80211_MODE_HALF]       = IEEE80211_CHAN_HALF,
1864             [IEEE80211_MODE_QUARTER]    = IEEE80211_CHAN_QUARTER,
1865             /* NB: handled specially below */
1866             [IEEE80211_MODE_11NA]       = IEEE80211_CHAN_A,
1867             [IEEE80211_MODE_11NG]       = IEEE80211_CHAN_G,
1868         };
1869         u_int modeflags;
1870         int i;
1871
1872         modeflags = chanflags[mode];
1873         for (i = 0; i < ic->ic_nchans; i++) {
1874                 struct ieee80211_channel *c = &ic->ic_channels[i];
1875
1876                 if (c->ic_ieee != ieee)
1877                         continue;
1878                 if (mode == IEEE80211_MODE_AUTO) {
1879                         /* ignore turbo channels for autoselect */
1880                         if (IEEE80211_IS_CHAN_TURBO(c))
1881                                 continue;
1882                         /*
1883                          * XXX special-case 11b/g channels so we
1884                          *     always select the g channel if both
1885                          *     are present.
1886                          * XXX prefer HT to non-HT?
1887                          */
1888                         if (!IEEE80211_IS_CHAN_B(c) ||
1889                             !find11gchannel(ic, i, c->ic_freq))
1890                                 return c;
1891                 } else {
1892                         /* must check HT specially */
1893                         if ((mode == IEEE80211_MODE_11NA ||
1894                             mode == IEEE80211_MODE_11NG) &&
1895                             !IEEE80211_IS_CHAN_HT(c))
1896                                 continue;
1897                         if ((c->ic_flags & modeflags) == modeflags)
1898                                 return c;
1899                 }
1900         }
1901         return NULL;
1902 }
1903
1904 /*
1905  * Check the specified against any desired mode (aka netband).
1906  * This is only used (presently) when operating in hostap mode
1907  * to enforce consistency.
1908  */
1909 static int
1910 check_mode_consistency(const struct ieee80211_channel *c, int mode)
1911 {
1912         KASSERT(c != IEEE80211_CHAN_ANYC, ("oops, no channel"));
1913
1914         switch (mode) {
1915         case IEEE80211_MODE_11B:
1916                 return (IEEE80211_IS_CHAN_B(c));
1917         case IEEE80211_MODE_11G:
1918                 return (IEEE80211_IS_CHAN_ANYG(c) && !IEEE80211_IS_CHAN_HT(c));
1919         case IEEE80211_MODE_11A:
1920                 return (IEEE80211_IS_CHAN_A(c) && !IEEE80211_IS_CHAN_HT(c));
1921         case IEEE80211_MODE_STURBO_A:
1922                 return (IEEE80211_IS_CHAN_STURBO(c));
1923         case IEEE80211_MODE_11NA:
1924                 return (IEEE80211_IS_CHAN_HTA(c));
1925         case IEEE80211_MODE_11NG:
1926                 return (IEEE80211_IS_CHAN_HTG(c));
1927         }
1928         return 1;
1929
1930 }
1931
1932 /*
1933  * Common code to set the current channel.  If the device
1934  * is up and running this may result in an immediate channel
1935  * change or a kick of the state machine.
1936  */
1937 static int
1938 setcurchan(struct ieee80211vap *vap, struct ieee80211_channel *c)
1939 {
1940         struct ieee80211com *ic = vap->iv_ic;
1941         int error;
1942
1943         if (c != IEEE80211_CHAN_ANYC) {
1944                 if (IEEE80211_IS_CHAN_RADAR(c))
1945                         return EBUSY;   /* XXX better code? */
1946                 if (vap->iv_opmode == IEEE80211_M_HOSTAP) {
1947                         if (IEEE80211_IS_CHAN_NOHOSTAP(c))
1948                                 return EINVAL;
1949                         if (!check_mode_consistency(c, vap->iv_des_mode))
1950                                 return EINVAL;
1951                 } else if (vap->iv_opmode == IEEE80211_M_IBSS) {
1952                         if (IEEE80211_IS_CHAN_NOADHOC(c))
1953                                 return EINVAL;
1954                 }
1955                 if (vap->iv_state == IEEE80211_S_RUN &&
1956                     vap->iv_bss->ni_chan == c)
1957                         return 0;       /* NB: nothing to do */
1958         }
1959         vap->iv_des_chan = c;
1960
1961         error = 0;
1962         if (vap->iv_opmode == IEEE80211_M_MONITOR &&
1963             vap->iv_des_chan != IEEE80211_CHAN_ANYC) {
1964                 /*
1965                  * Monitor mode can switch directly.
1966                  */
1967                 if (IFNET_IS_UP_RUNNING(vap->iv_ifp)) {
1968                         /* XXX need state machine for other vap's to follow */
1969                         ieee80211_setcurchan(ic, vap->iv_des_chan);
1970                         vap->iv_bss->ni_chan = ic->ic_curchan;
1971                 } else
1972                         ic->ic_curchan = vap->iv_des_chan;
1973                         ic->ic_rt = ieee80211_get_ratetable(ic->ic_curchan);
1974         } else {
1975                 /*
1976                  * Need to go through the state machine in case we
1977                  * need to reassociate or the like.  The state machine
1978                  * will pickup the desired channel and avoid scanning.
1979                  */
1980                 if (IS_UP_AUTO(vap))
1981                         ieee80211_new_state(vap, IEEE80211_S_SCAN, 0);
1982                 else if (vap->iv_des_chan != IEEE80211_CHAN_ANYC) {
1983                         /*
1984                          * When not up+running and a real channel has
1985                          * been specified fix the current channel so
1986                          * there is immediate feedback; e.g. via ifconfig.
1987                          */
1988                         ic->ic_curchan = vap->iv_des_chan;
1989                         ic->ic_rt = ieee80211_get_ratetable(ic->ic_curchan);
1990                 }
1991         }
1992         return error;
1993 }
1994
1995 /*
1996  * Old api for setting the current channel; this is
1997  * deprecated because channel numbers are ambiguous.
1998  */
1999 static __noinline int
2000 ieee80211_ioctl_setchannel(struct ieee80211vap *vap,
2001         const struct ieee80211req *ireq)
2002 {
2003         struct ieee80211com *ic = vap->iv_ic;
2004         struct ieee80211_channel *c;
2005
2006         /* XXX 0xffff overflows 16-bit signed */
2007         if (ireq->i_val == 0 ||
2008             ireq->i_val == (int16_t) IEEE80211_CHAN_ANY) {
2009                 c = IEEE80211_CHAN_ANYC;
2010         } else {
2011                 struct ieee80211_channel *c2;
2012
2013                 c = findchannel(ic, ireq->i_val, vap->iv_des_mode);
2014                 if (c == NULL) {
2015                         c = findchannel(ic, ireq->i_val,
2016                                 IEEE80211_MODE_AUTO);
2017                         if (c == NULL)
2018                                 return EINVAL;
2019                 }
2020                 /*
2021                  * Fine tune channel selection based on desired mode:
2022                  *   if 11b is requested, find the 11b version of any
2023                  *      11g channel returned,
2024                  *   if static turbo, find the turbo version of any
2025                  *      11a channel return,
2026                  *   if 11na is requested, find the ht version of any
2027                  *      11a channel returned,
2028                  *   if 11ng is requested, find the ht version of any
2029                  *      11g channel returned,
2030                  *   otherwise we should be ok with what we've got.
2031                  */
2032                 switch (vap->iv_des_mode) {
2033                 case IEEE80211_MODE_11B:
2034                         if (IEEE80211_IS_CHAN_ANYG(c)) {
2035                                 c2 = findchannel(ic, ireq->i_val,
2036                                         IEEE80211_MODE_11B);
2037                                 /* NB: should not happen, =>'s 11g w/o 11b */
2038                                 if (c2 != NULL)
2039                                         c = c2;
2040                         }
2041                         break;
2042                 case IEEE80211_MODE_TURBO_A:
2043                         if (IEEE80211_IS_CHAN_A(c)) {
2044                                 c2 = findchannel(ic, ireq->i_val,
2045                                         IEEE80211_MODE_TURBO_A);
2046                                 if (c2 != NULL)
2047                                         c = c2;
2048                         }
2049                         break;
2050                 case IEEE80211_MODE_11NA:
2051                         if (IEEE80211_IS_CHAN_A(c)) {
2052                                 c2 = findchannel(ic, ireq->i_val,
2053                                         IEEE80211_MODE_11NA);
2054                                 if (c2 != NULL)
2055                                         c = c2;
2056                         }
2057                         break;
2058                 case IEEE80211_MODE_11NG:
2059                         if (IEEE80211_IS_CHAN_ANYG(c)) {
2060                                 c2 = findchannel(ic, ireq->i_val,
2061                                         IEEE80211_MODE_11NG);
2062                                 if (c2 != NULL)
2063                                         c = c2;
2064                         }
2065                         break;
2066                 default:                /* NB: no static turboG */
2067                         break;
2068                 }
2069         }
2070         return setcurchan(vap, c);
2071 }
2072
2073 /*
2074  * New/current api for setting the current channel; a complete
2075  * channel description is provide so there is no ambiguity in
2076  * identifying the channel.
2077  */
2078 static __noinline int
2079 ieee80211_ioctl_setcurchan(struct ieee80211vap *vap,
2080         const struct ieee80211req *ireq)
2081 {
2082         struct ieee80211com *ic = vap->iv_ic;
2083         struct ieee80211_channel chan, *c;
2084         int error;
2085
2086         if (ireq->i_len != sizeof(chan))
2087                 return EINVAL;
2088         error = copyin(ireq->i_data, &chan, sizeof(chan));
2089         if (error != 0)
2090                 return error;
2091         /* XXX 0xffff overflows 16-bit signed */
2092         if (chan.ic_freq == 0 || chan.ic_freq == IEEE80211_CHAN_ANY) {
2093                 c = IEEE80211_CHAN_ANYC;
2094         } else {
2095                 c = ieee80211_find_channel(ic, chan.ic_freq, chan.ic_flags);
2096                 if (c == NULL)
2097                         return EINVAL;
2098         }
2099         return setcurchan(vap, c);
2100 }
2101
2102 static __noinline int
2103 ieee80211_ioctl_setregdomain(struct ieee80211vap *vap,
2104         const struct ieee80211req *ireq)
2105 {
2106         struct ieee80211_regdomain_req *reg;
2107         int nchans, error;
2108
2109         nchans = 1 + ((ireq->i_len - sizeof(struct ieee80211_regdomain_req)) /
2110             sizeof(struct ieee80211_channel));
2111         if (!(1 <= nchans && nchans <= IEEE80211_CHAN_MAX)) {
2112                 IEEE80211_DPRINTF(vap, IEEE80211_MSG_IOCTL,
2113                     "%s: bad # chans, i_len %d nchans %d\n", __func__,
2114                     ireq->i_len, nchans);
2115                 return EINVAL;
2116         }
2117         reg = (struct ieee80211_regdomain_req *)
2118             malloc(IEEE80211_REGDOMAIN_SIZE(nchans), M_TEMP, M_NOWAIT);
2119         if (reg == NULL) {
2120                 IEEE80211_DPRINTF(vap, IEEE80211_MSG_IOCTL,
2121                     "%s: no memory, nchans %d\n", __func__, nchans);
2122                 return ENOMEM;
2123         }
2124         error = copyin(ireq->i_data, reg, IEEE80211_REGDOMAIN_SIZE(nchans));
2125         if (error == 0) {
2126                 /* NB: validate inline channel count against storage size */
2127                 if (reg->chaninfo.ic_nchans != nchans) {
2128                         IEEE80211_DPRINTF(vap, IEEE80211_MSG_IOCTL,
2129                             "%s: chan cnt mismatch, %d != %d\n", __func__,
2130                                 reg->chaninfo.ic_nchans, nchans);
2131                         error = EINVAL;
2132                 } else
2133                         error = ieee80211_setregdomain(vap, reg);
2134         }
2135         free(reg, M_TEMP);
2136
2137         return (error == 0 ? ENETRESET : error);
2138 }
2139
2140 static int
2141 ieee80211_ioctl_setroam(struct ieee80211vap *vap,
2142         const struct ieee80211req *ireq)
2143 {
2144         if (ireq->i_len != sizeof(vap->iv_roamparms))
2145                 return EINVAL;
2146         /* XXX validate params */
2147         /* XXX? ENETRESET to push to device? */
2148         return copyin(ireq->i_data, vap->iv_roamparms,
2149             sizeof(vap->iv_roamparms));
2150 }
2151
2152 static int
2153 checkrate(const struct ieee80211_rateset *rs, int rate)
2154 {
2155         int i;
2156
2157         if (rate == IEEE80211_FIXED_RATE_NONE)
2158                 return 1;
2159         for (i = 0; i < rs->rs_nrates; i++)
2160                 if ((rs->rs_rates[i] & IEEE80211_RATE_VAL) == rate)
2161                         return 1;
2162         return 0;
2163 }
2164
2165 static int
2166 checkmcs(int mcs)
2167 {
2168         if (mcs == IEEE80211_FIXED_RATE_NONE)
2169                 return 1;
2170         if ((mcs & IEEE80211_RATE_MCS) == 0)    /* MCS always have 0x80 set */
2171                 return 0;
2172         return (mcs & 0x7f) <= 15;      /* XXX could search ht rate set */
2173 }
2174
2175 static __noinline int
2176 ieee80211_ioctl_settxparams(struct ieee80211vap *vap,
2177         const struct ieee80211req *ireq)
2178 {
2179         struct ieee80211com *ic = vap->iv_ic;
2180         struct ieee80211_txparams_req parms;    /* XXX stack use? */
2181         struct ieee80211_txparam *src, *dst;
2182         const struct ieee80211_rateset *rs;
2183         int error, mode, changed, is11n, nmodes;
2184
2185         /* NB: accept short requests for backwards compat */
2186         if (ireq->i_len > sizeof(parms))
2187                 return EINVAL;
2188         error = copyin(ireq->i_data, &parms, ireq->i_len);
2189         if (error != 0)
2190                 return error;
2191         nmodes = ireq->i_len / sizeof(struct ieee80211_txparam);
2192         changed = 0;
2193         /* validate parameters and check if anything changed */
2194         for (mode = IEEE80211_MODE_11A; mode < nmodes; mode++) {
2195                 if (isclr(ic->ic_modecaps, mode))
2196                         continue;
2197                 src = &parms.params[mode];
2198                 dst = &vap->iv_txparms[mode];
2199                 rs = &ic->ic_sup_rates[mode];   /* NB: 11n maps to legacy */
2200                 is11n = (mode == IEEE80211_MODE_11NA ||
2201                          mode == IEEE80211_MODE_11NG);
2202                 if (src->ucastrate != dst->ucastrate) {
2203                         if (!checkrate(rs, src->ucastrate) &&
2204                             (!is11n || !checkmcs(src->ucastrate)))
2205                                 return EINVAL;
2206                         changed++;
2207                 }
2208                 if (src->mcastrate != dst->mcastrate) {
2209                         if (!checkrate(rs, src->mcastrate) &&
2210                             (!is11n || !checkmcs(src->mcastrate)))
2211                                 return EINVAL;
2212                         changed++;
2213                 }
2214                 if (src->mgmtrate != dst->mgmtrate) {
2215                         if (!checkrate(rs, src->mgmtrate) &&
2216                             (!is11n || !checkmcs(src->mgmtrate)))
2217                                 return EINVAL;
2218                         changed++;
2219                 }
2220                 if (src->maxretry != dst->maxretry)     /* NB: no bounds */
2221                         changed++;
2222         }
2223         if (changed) {
2224                 /*
2225                  * Copy new parameters in place and notify the
2226                  * driver so it can push state to the device.
2227                  */
2228                 for (mode = IEEE80211_MODE_11A; mode < nmodes; mode++) {
2229                         if (isset(ic->ic_modecaps, mode))
2230                                 vap->iv_txparms[mode] = parms.params[mode];
2231                 }
2232                 /* XXX could be more intelligent,
2233                    e.g. don't reset if setting not being used */
2234                 return ENETRESET;
2235         }
2236         return 0;
2237 }
2238
2239 /*
2240  * Application Information Element support.
2241  */
2242 static int
2243 setappie(struct ieee80211_appie **aie, const struct ieee80211req *ireq)
2244 {
2245         struct ieee80211_appie *app = *aie;
2246         struct ieee80211_appie *napp;
2247         int error;
2248
2249         if (ireq->i_len == 0) {         /* delete any existing ie */
2250                 if (app != NULL) {
2251                         *aie = NULL;    /* XXX racey */
2252                         free(app, M_80211_NODE_IE);
2253                 }
2254                 return 0;
2255         }
2256         if (!(2 <= ireq->i_len && ireq->i_len <= IEEE80211_MAX_APPIE))
2257                 return EINVAL;
2258         /*
2259          * Allocate a new appie structure and copy in the user data.
2260          * When done swap in the new structure.  Note that we do not
2261          * guard against users holding a ref to the old structure;
2262          * this must be handled outside this code.
2263          *
2264          * XXX bad bad bad
2265          */
2266         napp = (struct ieee80211_appie *) malloc(
2267             sizeof(struct ieee80211_appie) + ireq->i_len, M_80211_NODE_IE, M_NOWAIT);
2268         if (napp == NULL)
2269                 return ENOMEM;
2270         /* XXX holding ic lock */
2271         error = copyin(ireq->i_data, napp->ie_data, ireq->i_len);
2272         if (error) {
2273                 free(napp, M_80211_NODE_IE);
2274                 return error;
2275         }
2276         napp->ie_len = ireq->i_len;
2277         *aie = napp;
2278         if (app != NULL)
2279                 free(app, M_80211_NODE_IE);
2280         return 0;
2281 }
2282
2283 static void
2284 setwparsnie(struct ieee80211vap *vap, uint8_t *ie, int space)
2285 {
2286         /* validate data is present as best we can */
2287         if (space == 0 || 2+ie[1] > space)
2288                 return;
2289         if (ie[0] == IEEE80211_ELEMID_VENDOR)
2290                 vap->iv_wpa_ie = ie;
2291         else if (ie[0] == IEEE80211_ELEMID_RSN)
2292                 vap->iv_rsn_ie = ie;
2293 }
2294
2295 static __noinline int
2296 ieee80211_ioctl_setappie_locked(struct ieee80211vap *vap,
2297         const struct ieee80211req *ireq, int fc0)
2298 {
2299         int error;
2300
2301         IEEE80211_LOCK_ASSERT(vap->iv_ic);
2302
2303         switch (fc0 & IEEE80211_FC0_SUBTYPE_MASK) {
2304         case IEEE80211_FC0_SUBTYPE_BEACON:
2305                 if (vap->iv_opmode != IEEE80211_M_HOSTAP &&
2306                     vap->iv_opmode != IEEE80211_M_IBSS) {
2307                         error = EINVAL;
2308                         break;
2309                 }
2310                 error = setappie(&vap->iv_appie_beacon, ireq);
2311                 if (error == 0)
2312                         ieee80211_beacon_notify(vap, IEEE80211_BEACON_APPIE);
2313                 break;
2314         case IEEE80211_FC0_SUBTYPE_PROBE_RESP:
2315                 error = setappie(&vap->iv_appie_proberesp, ireq);
2316                 break;
2317         case IEEE80211_FC0_SUBTYPE_ASSOC_RESP:
2318                 if (vap->iv_opmode == IEEE80211_M_HOSTAP)
2319                         error = setappie(&vap->iv_appie_assocresp, ireq);
2320                 else
2321                         error = EINVAL;
2322                 break;
2323         case IEEE80211_FC0_SUBTYPE_PROBE_REQ:
2324                 error = setappie(&vap->iv_appie_probereq, ireq);
2325                 break;
2326         case IEEE80211_FC0_SUBTYPE_ASSOC_REQ:
2327                 if (vap->iv_opmode == IEEE80211_M_STA)
2328                         error = setappie(&vap->iv_appie_assocreq, ireq);
2329                 else
2330                         error = EINVAL;
2331                 break;
2332         case (IEEE80211_APPIE_WPA & IEEE80211_FC0_SUBTYPE_MASK):
2333                 error = setappie(&vap->iv_appie_wpa, ireq);
2334                 if (error == 0) {
2335                         /*
2336                          * Must split single blob of data into separate
2337                          * WPA and RSN ie's because they go in different
2338                          * locations in the mgt frames.
2339                          * XXX use IEEE80211_IOC_WPA2 so user code does split
2340                          */
2341                         vap->iv_wpa_ie = NULL;
2342                         vap->iv_rsn_ie = NULL;
2343                         if (vap->iv_appie_wpa != NULL) {
2344                                 struct ieee80211_appie *appie =
2345                                     vap->iv_appie_wpa;
2346                                 uint8_t *data = appie->ie_data;
2347
2348                                 /* XXX ie length validate is painful, cheat */
2349                                 setwparsnie(vap, data, appie->ie_len);
2350                                 setwparsnie(vap, data + 2 + data[1],
2351                                     appie->ie_len - (2 + data[1]));
2352                         }
2353                         if (vap->iv_opmode == IEEE80211_M_HOSTAP ||
2354                             vap->iv_opmode == IEEE80211_M_IBSS) {
2355                                 /*
2356                                  * Must rebuild beacon frame as the update
2357                                  * mechanism doesn't handle WPA/RSN ie's.
2358                                  * Could extend it but it doesn't normally
2359                                  * change; this is just to deal with hostapd
2360                                  * plumbing the ie after the interface is up.
2361                                  */
2362                                 error = ENETRESET;
2363                         }
2364                 }
2365                 break;
2366         default:
2367                 error = EINVAL;
2368                 break;
2369         }
2370         return error;
2371 }
2372
2373 static __noinline int
2374 ieee80211_ioctl_setappie(struct ieee80211vap *vap,
2375         const struct ieee80211req *ireq)
2376 {
2377         struct ieee80211com *ic = vap->iv_ic;
2378         int error;
2379         uint8_t fc0;
2380
2381         fc0 = ireq->i_val & 0xff;
2382         if ((fc0 & IEEE80211_FC0_TYPE_MASK) != IEEE80211_FC0_TYPE_MGT)
2383                 return EINVAL;
2384         /* NB: could check iv_opmode and reject but hardly worth the effort */
2385         IEEE80211_LOCK(ic);
2386         error = ieee80211_ioctl_setappie_locked(vap, ireq, fc0);
2387         IEEE80211_UNLOCK(ic);
2388         return error;
2389 }
2390
2391 static __noinline int
2392 ieee80211_ioctl_chanswitch(struct ieee80211vap *vap, struct ieee80211req *ireq)
2393 {
2394         struct ieee80211com *ic = vap->iv_ic;
2395         struct ieee80211_chanswitch_req csr;
2396         struct ieee80211_channel *c;
2397         int error;
2398
2399         if (ireq->i_len != sizeof(csr))
2400                 return EINVAL;
2401         error = copyin(ireq->i_data, &csr, sizeof(csr));
2402         if (error != 0)
2403                 return error;
2404         /* XXX adhoc mode not supported */
2405         if (vap->iv_opmode != IEEE80211_M_HOSTAP ||
2406             (vap->iv_flags & IEEE80211_F_DOTH) == 0)
2407                 return EOPNOTSUPP;
2408         c = ieee80211_find_channel(ic,
2409             csr.csa_chan.ic_freq, csr.csa_chan.ic_flags);
2410         if (c == NULL)
2411                 return ENOENT;
2412         IEEE80211_LOCK(ic);
2413         if ((ic->ic_flags & IEEE80211_F_CSAPENDING) == 0)
2414                 ieee80211_csa_startswitch(ic, c, csr.csa_mode, csr.csa_count);
2415         else if (csr.csa_count == 0)
2416                 ieee80211_csa_cancelswitch(ic);
2417         else
2418                 error = EBUSY;
2419         IEEE80211_UNLOCK(ic);
2420         return error;
2421 }
2422
2423 static int
2424 ieee80211_scanreq(struct ieee80211vap *vap, struct ieee80211_scan_req *sr)
2425 {
2426 #define IEEE80211_IOC_SCAN_FLAGS \
2427         (IEEE80211_IOC_SCAN_NOPICK | IEEE80211_IOC_SCAN_ACTIVE | \
2428          IEEE80211_IOC_SCAN_PICK1ST | IEEE80211_IOC_SCAN_BGSCAN | \
2429          IEEE80211_IOC_SCAN_ONCE | IEEE80211_IOC_SCAN_NOBCAST | \
2430          IEEE80211_IOC_SCAN_NOJOIN | IEEE80211_IOC_SCAN_FLUSH | \
2431          IEEE80211_IOC_SCAN_CHECK)
2432         struct ieee80211com *ic = vap->iv_ic;
2433         int error, i;
2434
2435         /* convert duration */
2436         if (sr->sr_duration == IEEE80211_IOC_SCAN_FOREVER)
2437                 sr->sr_duration = IEEE80211_SCAN_FOREVER;
2438         else {
2439                 if (sr->sr_duration < IEEE80211_IOC_SCAN_DURATION_MIN ||
2440                     sr->sr_duration > IEEE80211_IOC_SCAN_DURATION_MAX)
2441                         return EINVAL;
2442                 sr->sr_duration = msecs_to_ticks(sr->sr_duration);
2443                 if (sr->sr_duration < 1)
2444                         sr->sr_duration = 1;
2445         }
2446         /* convert min/max channel dwell */
2447         if (sr->sr_mindwell != 0) {
2448                 sr->sr_mindwell = msecs_to_ticks(sr->sr_mindwell);
2449                 if (sr->sr_mindwell < 1)
2450                         sr->sr_mindwell = 1;
2451         }
2452         if (sr->sr_maxdwell != 0) {
2453                 sr->sr_maxdwell = msecs_to_ticks(sr->sr_maxdwell);
2454                 if (sr->sr_maxdwell < 1)
2455                         sr->sr_maxdwell = 1;
2456         }
2457         /* NB: silently reduce ssid count to what is supported */
2458         if (sr->sr_nssid > IEEE80211_SCAN_MAX_SSID)
2459                 sr->sr_nssid = IEEE80211_SCAN_MAX_SSID;
2460         for (i = 0; i < sr->sr_nssid; i++)
2461                 if (sr->sr_ssid[i].len > IEEE80211_NWID_LEN)
2462                         return EINVAL;
2463         /* cleanse flags just in case, could reject if invalid flags */
2464         sr->sr_flags &= IEEE80211_IOC_SCAN_FLAGS;
2465         /*
2466          * Add an implicit NOPICK if the vap is not marked UP.  This
2467          * allows applications to scan without joining a bss (or picking
2468          * a channel and setting up a bss) and without forcing manual
2469          * roaming mode--you just need to mark the parent device UP.
2470          */
2471         if ((vap->iv_ifp->if_flags & IFF_UP) == 0)
2472                 sr->sr_flags |= IEEE80211_IOC_SCAN_NOPICK;
2473
2474         IEEE80211_DPRINTF(vap, IEEE80211_MSG_SCAN,
2475             "%s: flags 0x%x%s duration 0x%x mindwell %u maxdwell %u nssid %d\n",
2476             __func__, sr->sr_flags,
2477             (vap->iv_ifp->if_flags & IFF_UP) == 0 ? " (!IFF_UP)" : "",
2478             sr->sr_duration, sr->sr_mindwell, sr->sr_maxdwell, sr->sr_nssid);
2479         /*
2480          * If we are in INIT state then the driver has never had a chance
2481          * to setup hardware state to do a scan; we must use the state
2482          * machine to get us up to the SCAN state but once we reach SCAN
2483          * state we then want to use the supplied params.  Stash the
2484          * parameters in the vap and mark IEEE80211_FEXT_SCANREQ; the
2485          * state machines will recognize this and use the stashed params
2486          * to issue the scan request.
2487          *
2488          * Otherwise just invoke the scan machinery directly.
2489          */
2490         IEEE80211_LOCK(ic);
2491         if (vap->iv_state == IEEE80211_S_INIT) {
2492                 /* NB: clobbers previous settings */
2493                 vap->iv_scanreq_flags = sr->sr_flags;
2494                 vap->iv_scanreq_duration = sr->sr_duration;
2495                 vap->iv_scanreq_nssid = sr->sr_nssid;
2496                 for (i = 0; i < sr->sr_nssid; i++) {
2497                         vap->iv_scanreq_ssid[i].len = sr->sr_ssid[i].len;
2498                         memcpy(vap->iv_scanreq_ssid[i].ssid,
2499                             sr->sr_ssid[i].ssid, sr->sr_ssid[i].len);
2500                 }
2501                 vap->iv_flags_ext |= IEEE80211_FEXT_SCANREQ;
2502                 IEEE80211_UNLOCK(ic);
2503                 ieee80211_new_state(vap, IEEE80211_S_SCAN, 0);
2504         } else {
2505                 vap->iv_flags_ext &= ~IEEE80211_FEXT_SCANREQ;
2506                 IEEE80211_UNLOCK(ic);
2507                 if (sr->sr_flags & IEEE80211_IOC_SCAN_CHECK) {
2508                         error = ieee80211_check_scan(vap, sr->sr_flags,
2509                             sr->sr_duration, sr->sr_mindwell, sr->sr_maxdwell,
2510                             sr->sr_nssid,
2511                             /* NB: cheat, we assume structures are compatible */
2512                             (const struct ieee80211_scan_ssid *) &sr->sr_ssid[0]);
2513                 } else {
2514                         error = ieee80211_start_scan(vap, sr->sr_flags,
2515                             sr->sr_duration, sr->sr_mindwell, sr->sr_maxdwell,
2516                             sr->sr_nssid,
2517                             /* NB: cheat, we assume structures are compatible */
2518                             (const struct ieee80211_scan_ssid *) &sr->sr_ssid[0]);
2519                 }
2520                 if (error == 0)
2521                         return EINPROGRESS;
2522         }
2523         return 0;
2524 #undef IEEE80211_IOC_SCAN_FLAGS
2525 }
2526
2527 static __noinline int
2528 ieee80211_ioctl_scanreq(struct ieee80211vap *vap, struct ieee80211req *ireq)
2529 {
2530         struct ieee80211com *ic = vap->iv_ic;
2531         struct ieee80211_scan_req sr;           /* XXX off stack? */
2532         int error;
2533
2534         /* NB: parent must be running */
2535         if ((ic->ic_ifp->if_drv_flags & IFF_DRV_RUNNING) == 0)
2536                 return ENXIO;
2537
2538         if (ireq->i_len != sizeof(sr))
2539                 return EINVAL;
2540         error = copyin(ireq->i_data, &sr, sizeof(sr));
2541         if (error != 0)
2542                 return error;
2543         return ieee80211_scanreq(vap, &sr);
2544 }
2545
2546 static __noinline int
2547 ieee80211_ioctl_setstavlan(struct ieee80211vap *vap, struct ieee80211req *ireq)
2548 {
2549         struct ieee80211_node *ni;
2550         struct ieee80211req_sta_vlan vlan;
2551         int error;
2552
2553         if (ireq->i_len != sizeof(vlan))
2554                 return EINVAL;
2555         error = copyin(ireq->i_data, &vlan, sizeof(vlan));
2556         if (error != 0)
2557                 return error;
2558         if (!IEEE80211_ADDR_EQ(vlan.sv_macaddr, zerobssid)) {
2559                 ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap,
2560                     vlan.sv_macaddr);
2561                 if (ni == NULL)
2562                         return ENOENT;
2563         } else
2564                 ni = ieee80211_ref_node(vap->iv_bss);
2565         ni->ni_vlan = vlan.sv_vlan;
2566         ieee80211_free_node(ni);
2567         return error;
2568 }
2569
2570 static int
2571 isvap11g(const struct ieee80211vap *vap)
2572 {
2573         const struct ieee80211_node *bss = vap->iv_bss;
2574         return bss->ni_chan != IEEE80211_CHAN_ANYC &&
2575             IEEE80211_IS_CHAN_ANYG(bss->ni_chan);
2576 }
2577
2578 static int
2579 isvapht(const struct ieee80211vap *vap)
2580 {
2581         const struct ieee80211_node *bss = vap->iv_bss;
2582         return bss->ni_chan != IEEE80211_CHAN_ANYC &&
2583             IEEE80211_IS_CHAN_HT(bss->ni_chan);
2584 }
2585
2586 /*
2587  * Dummy ioctl set handler so the linker set is defined.
2588  */
2589 static int
2590 dummy_ioctl_set(struct ieee80211vap *vap, struct ieee80211req *ireq)
2591 {
2592         return ENOSYS;
2593 }
2594 IEEE80211_IOCTL_SET(dummy, dummy_ioctl_set);
2595
2596 static int
2597 ieee80211_ioctl_setdefault(struct ieee80211vap *vap, struct ieee80211req *ireq)
2598 {
2599         ieee80211_ioctl_setfunc * const *set;
2600         int error;
2601
2602         SET_FOREACH(set, ieee80211_ioctl_setset) {
2603                 error = (*set)(vap, ireq);
2604                 if (error != ENOSYS)
2605                         return error;
2606         }
2607         return EINVAL;
2608 }
2609
2610 static __noinline int
2611 ieee80211_ioctl_set80211(struct ieee80211vap *vap, u_long cmd, struct ieee80211req *ireq)
2612 {
2613         struct ieee80211com *ic = vap->iv_ic;
2614         int error;
2615         const struct ieee80211_authenticator *auth;
2616         uint8_t tmpkey[IEEE80211_KEYBUF_SIZE];
2617         char tmpssid[IEEE80211_NWID_LEN];
2618         uint8_t tmpbssid[IEEE80211_ADDR_LEN];
2619         struct ieee80211_key *k;
2620         u_int kid;
2621         uint32_t flags;
2622
2623         error = 0;
2624         switch (ireq->i_type) {
2625         case IEEE80211_IOC_SSID:
2626                 if (ireq->i_val != 0 ||
2627                     ireq->i_len > IEEE80211_NWID_LEN)
2628                         return EINVAL;
2629                 error = copyin(ireq->i_data, tmpssid, ireq->i_len);
2630                 if (error)
2631                         break;
2632                 memset(vap->iv_des_ssid[0].ssid, 0, IEEE80211_NWID_LEN);
2633                 vap->iv_des_ssid[0].len = ireq->i_len;
2634                 memcpy(vap->iv_des_ssid[0].ssid, tmpssid, ireq->i_len);
2635                 vap->iv_des_nssid = (ireq->i_len > 0);
2636                 error = ENETRESET;
2637                 break;
2638         case IEEE80211_IOC_WEP:
2639                 switch (ireq->i_val) {
2640                 case IEEE80211_WEP_OFF:
2641                         vap->iv_flags &= ~IEEE80211_F_PRIVACY;
2642                         vap->iv_flags &= ~IEEE80211_F_DROPUNENC;
2643                         break;
2644                 case IEEE80211_WEP_ON:
2645                         vap->iv_flags |= IEEE80211_F_PRIVACY;
2646                         vap->iv_flags |= IEEE80211_F_DROPUNENC;
2647                         break;
2648                 case IEEE80211_WEP_MIXED:
2649                         vap->iv_flags |= IEEE80211_F_PRIVACY;
2650                         vap->iv_flags &= ~IEEE80211_F_DROPUNENC;
2651                         break;
2652                 }
2653                 error = ENETRESET;
2654                 break;
2655         case IEEE80211_IOC_WEPKEY:
2656                 kid = (u_int) ireq->i_val;
2657                 if (kid >= IEEE80211_WEP_NKID)
2658                         return EINVAL;
2659                 k = &vap->iv_nw_keys[kid];
2660                 if (ireq->i_len == 0) {
2661                         /* zero-len =>'s delete any existing key */
2662                         (void) ieee80211_crypto_delkey(vap, k);
2663                         break;
2664                 }
2665                 if (ireq->i_len > sizeof(tmpkey))
2666                         return EINVAL;
2667                 memset(tmpkey, 0, sizeof(tmpkey));
2668                 error = copyin(ireq->i_data, tmpkey, ireq->i_len);
2669                 if (error)
2670                         break;
2671                 ieee80211_key_update_begin(vap);
2672                 k->wk_keyix = kid;      /* NB: force fixed key id */
2673                 if (ieee80211_crypto_newkey(vap, IEEE80211_CIPHER_WEP,
2674                     IEEE80211_KEY_XMIT | IEEE80211_KEY_RECV, k)) {
2675                         k->wk_keylen = ireq->i_len;
2676                         memcpy(k->wk_key, tmpkey, sizeof(tmpkey));
2677                         IEEE80211_ADDR_COPY(k->wk_macaddr, vap->iv_myaddr);
2678                         if  (!ieee80211_crypto_setkey(vap, k))
2679                                 error = EINVAL;
2680                 } else
2681                         error = EINVAL;
2682                 ieee80211_key_update_end(vap);
2683                 break;
2684         case IEEE80211_IOC_WEPTXKEY:
2685                 kid = (u_int) ireq->i_val;
2686                 if (kid >= IEEE80211_WEP_NKID &&
2687                     (uint16_t) kid != IEEE80211_KEYIX_NONE)
2688                         return EINVAL;
2689                 vap->iv_def_txkey = kid;
2690                 break;
2691         case IEEE80211_IOC_AUTHMODE:
2692                 switch (ireq->i_val) {
2693                 case IEEE80211_AUTH_WPA:
2694                 case IEEE80211_AUTH_8021X:      /* 802.1x */
2695                 case IEEE80211_AUTH_OPEN:       /* open */
2696                 case IEEE80211_AUTH_SHARED:     /* shared-key */
2697                 case IEEE80211_AUTH_AUTO:       /* auto */
2698                         auth = ieee80211_authenticator_get(ireq->i_val);
2699                         if (auth == NULL)
2700                                 return EINVAL;
2701                         break;
2702                 default:
2703                         return EINVAL;
2704                 }
2705                 switch (ireq->i_val) {
2706                 case IEEE80211_AUTH_WPA:        /* WPA w/ 802.1x */
2707                         vap->iv_flags |= IEEE80211_F_PRIVACY;
2708                         ireq->i_val = IEEE80211_AUTH_8021X;
2709                         break;
2710                 case IEEE80211_AUTH_OPEN:       /* open */
2711                         vap->iv_flags &= ~(IEEE80211_F_WPA|IEEE80211_F_PRIVACY);
2712                         break;
2713                 case IEEE80211_AUTH_SHARED:     /* shared-key */
2714                 case IEEE80211_AUTH_8021X:      /* 802.1x */
2715                         vap->iv_flags &= ~IEEE80211_F_WPA;
2716                         /* both require a key so mark the PRIVACY capability */
2717                         vap->iv_flags |= IEEE80211_F_PRIVACY;
2718                         break;
2719                 case IEEE80211_AUTH_AUTO:       /* auto */
2720                         vap->iv_flags &= ~IEEE80211_F_WPA;
2721                         /* XXX PRIVACY handling? */
2722                         /* XXX what's the right way to do this? */
2723                         break;
2724                 }
2725                 /* NB: authenticator attach/detach happens on state change */
2726                 vap->iv_bss->ni_authmode = ireq->i_val;
2727                 /* XXX mixed/mode/usage? */
2728                 vap->iv_auth = auth;
2729                 error = ENETRESET;
2730                 break;
2731         case IEEE80211_IOC_CHANNEL:
2732                 error = ieee80211_ioctl_setchannel(vap, ireq);
2733                 break;
2734         case IEEE80211_IOC_POWERSAVE:
2735                 switch (ireq->i_val) {
2736                 case IEEE80211_POWERSAVE_OFF:
2737                         if (vap->iv_flags & IEEE80211_F_PMGTON) {
2738                                 ieee80211_syncflag(vap, -IEEE80211_F_PMGTON);
2739                                 error = ERESTART;
2740                         }
2741                         break;
2742                 case IEEE80211_POWERSAVE_ON:
2743                         if ((vap->iv_caps & IEEE80211_C_PMGT) == 0)
2744                                 error = EOPNOTSUPP;
2745                         else if ((vap->iv_flags & IEEE80211_F_PMGTON) == 0) {
2746                                 ieee80211_syncflag(vap, IEEE80211_F_PMGTON);
2747                                 error = ERESTART;
2748                         }
2749                         break;
2750                 default:
2751                         error = EINVAL;
2752                         break;
2753                 }
2754                 break;
2755         case IEEE80211_IOC_POWERSAVESLEEP:
2756                 if (ireq->i_val < 0)
2757                         return EINVAL;
2758                 ic->ic_lintval = ireq->i_val;
2759                 error = ERESTART;
2760                 break;
2761         case IEEE80211_IOC_RTSTHRESHOLD:
2762                 if (!(IEEE80211_RTS_MIN <= ireq->i_val &&
2763                       ireq->i_val <= IEEE80211_RTS_MAX))
2764                         return EINVAL;
2765                 vap->iv_rtsthreshold = ireq->i_val;
2766                 error = ERESTART;
2767                 break;
2768         case IEEE80211_IOC_PROTMODE:
2769                 if (ireq->i_val > IEEE80211_PROT_RTSCTS)
2770                         return EINVAL;
2771                 ic->ic_protmode = (enum ieee80211_protmode)ireq->i_val;
2772                 /* NB: if not operating in 11g this can wait */
2773                 if (ic->ic_bsschan != IEEE80211_CHAN_ANYC &&
2774                     IEEE80211_IS_CHAN_ANYG(ic->ic_bsschan))
2775                         error = ERESTART;
2776                 break;
2777         case IEEE80211_IOC_TXPOWER:
2778                 if ((ic->ic_caps & IEEE80211_C_TXPMGT) == 0)
2779                         return EOPNOTSUPP;
2780                 if (!(IEEE80211_TXPOWER_MIN <= ireq->i_val &&
2781                       ireq->i_val <= IEEE80211_TXPOWER_MAX))
2782                         return EINVAL;
2783                 ic->ic_txpowlimit = ireq->i_val;
2784                 error = ERESTART;
2785                 break;
2786         case IEEE80211_IOC_ROAMING:
2787                 if (!(IEEE80211_ROAMING_DEVICE <= ireq->i_val &&
2788                     ireq->i_val <= IEEE80211_ROAMING_MANUAL))
2789                         return EINVAL;
2790                 vap->iv_roaming = (enum ieee80211_roamingmode)ireq->i_val;
2791                 /* XXXX reset? */
2792                 break;
2793         case IEEE80211_IOC_PRIVACY:
2794                 if (ireq->i_val) {
2795                         /* XXX check for key state? */
2796                         vap->iv_flags |= IEEE80211_F_PRIVACY;
2797                 } else
2798                         vap->iv_flags &= ~IEEE80211_F_PRIVACY;
2799                 /* XXX ERESTART? */
2800                 break;
2801         case IEEE80211_IOC_DROPUNENCRYPTED:
2802                 if (ireq->i_val)
2803                         vap->iv_flags |= IEEE80211_F_DROPUNENC;
2804                 else
2805                         vap->iv_flags &= ~IEEE80211_F_DROPUNENC;
2806                 /* XXX ERESTART? */
2807                 break;
2808         case IEEE80211_IOC_WPAKEY:
2809                 error = ieee80211_ioctl_setkey(vap, ireq);
2810                 break;
2811         case IEEE80211_IOC_DELKEY:
2812                 error = ieee80211_ioctl_delkey(vap, ireq);
2813                 break;
2814         case IEEE80211_IOC_MLME:
2815                 error = ieee80211_ioctl_setmlme(vap, ireq);
2816                 break;
2817         case IEEE80211_IOC_COUNTERMEASURES:
2818                 if (ireq->i_val) {
2819                         if ((vap->iv_flags & IEEE80211_F_WPA) == 0)
2820                                 return EOPNOTSUPP;
2821                         vap->iv_flags |= IEEE80211_F_COUNTERM;
2822                 } else
2823                         vap->iv_flags &= ~IEEE80211_F_COUNTERM;
2824                 /* XXX ERESTART? */
2825                 break;
2826         case IEEE80211_IOC_WPA:
2827                 if (ireq->i_val > 3)
2828                         return EINVAL;
2829                 /* XXX verify ciphers available */
2830                 flags = vap->iv_flags & ~IEEE80211_F_WPA;
2831                 switch (ireq->i_val) {
2832                 case 1:
2833                         if (!(vap->iv_caps & IEEE80211_C_WPA1))
2834                                 return EOPNOTSUPP;
2835                         flags |= IEEE80211_F_WPA1;
2836                         break;
2837                 case 2:
2838                         if (!(vap->iv_caps & IEEE80211_C_WPA2))
2839                                 return EOPNOTSUPP;
2840                         flags |= IEEE80211_F_WPA2;
2841                         break;
2842                 case 3:
2843                         if ((vap->iv_caps & IEEE80211_C_WPA) != IEEE80211_C_WPA)
2844                                 return EOPNOTSUPP;
2845                         flags |= IEEE80211_F_WPA1 | IEEE80211_F_WPA2;
2846                         break;
2847                 default:        /*  Can't set any -> error */
2848                         return EOPNOTSUPP;
2849                 }
2850                 vap->iv_flags = flags;
2851                 error = ERESTART;       /* NB: can change beacon frame */
2852                 break;
2853         case IEEE80211_IOC_WME:
2854                 if (ireq->i_val) {
2855                         if ((vap->iv_caps & IEEE80211_C_WME) == 0)
2856                                 return EOPNOTSUPP;
2857                         ieee80211_syncflag(vap, IEEE80211_F_WME);
2858                 } else
2859                         ieee80211_syncflag(vap, -IEEE80211_F_WME);
2860                 error = ERESTART;       /* NB: can change beacon frame */
2861                 break;
2862         case IEEE80211_IOC_HIDESSID:
2863                 if (ireq->i_val)
2864                         vap->iv_flags |= IEEE80211_F_HIDESSID;
2865                 else
2866                         vap->iv_flags &= ~IEEE80211_F_HIDESSID;
2867                 error = ERESTART;               /* XXX ENETRESET? */
2868                 break;
2869         case IEEE80211_IOC_APBRIDGE:
2870                 if (ireq->i_val == 0)
2871                         vap->iv_flags |= IEEE80211_F_NOBRIDGE;
2872                 else
2873                         vap->iv_flags &= ~IEEE80211_F_NOBRIDGE;
2874                 break;
2875         case IEEE80211_IOC_BSSID:
2876                 if (ireq->i_len != sizeof(tmpbssid))
2877                         return EINVAL;
2878                 error = copyin(ireq->i_data, tmpbssid, ireq->i_len);
2879                 if (error)
2880                         break;
2881                 IEEE80211_ADDR_COPY(vap->iv_des_bssid, tmpbssid);
2882                 if (IEEE80211_ADDR_EQ(vap->iv_des_bssid, zerobssid))
2883                         vap->iv_flags &= ~IEEE80211_F_DESBSSID;
2884                 else
2885                         vap->iv_flags |= IEEE80211_F_DESBSSID;
2886                 error = ENETRESET;
2887                 break;
2888         case IEEE80211_IOC_CHANLIST:
2889                 error = ieee80211_ioctl_setchanlist(vap, ireq);
2890                 break;
2891 #define OLD_IEEE80211_IOC_SCAN_REQ      23
2892 #ifdef OLD_IEEE80211_IOC_SCAN_REQ
2893         case OLD_IEEE80211_IOC_SCAN_REQ:
2894                 IEEE80211_DPRINTF(vap, IEEE80211_MSG_SCAN,
2895                         "%s: active scan request\n", __func__);
2896                 /*
2897                  * If we are in INIT state then the driver has never
2898                  * had a chance to setup hardware state to do a scan;
2899                  * use the state machine to get us up the SCAN state.
2900                  * Otherwise just invoke the scan machinery to start
2901                  * a one-time scan.
2902                  */
2903                 if (vap->iv_state == IEEE80211_S_INIT)
2904                         ieee80211_new_state(vap, IEEE80211_S_SCAN, 0);
2905                 else
2906                         (void) ieee80211_start_scan(vap,
2907                                 IEEE80211_SCAN_ACTIVE |
2908                                 IEEE80211_SCAN_NOPICK |
2909                                 IEEE80211_SCAN_ONCE,
2910                                 IEEE80211_SCAN_FOREVER, 0, 0,
2911                                 /* XXX use ioctl params */
2912                                 vap->iv_des_nssid, vap->iv_des_ssid);
2913                 break;
2914 #endif /* OLD_IEEE80211_IOC_SCAN_REQ */
2915         case IEEE80211_IOC_SCAN_REQ:
2916                 error = ieee80211_ioctl_scanreq(vap, ireq);
2917                 break;
2918         case IEEE80211_IOC_SCAN_CANCEL:
2919                 IEEE80211_DPRINTF(vap, IEEE80211_MSG_SCAN,
2920                     "%s: cancel scan\n", __func__);
2921                 ieee80211_cancel_scan(vap);
2922                 break;
2923         case IEEE80211_IOC_HTCONF:
2924                 if (ireq->i_val & 1)
2925                         ieee80211_syncflag_ht(vap, IEEE80211_FHT_HT);
2926                 else
2927                         ieee80211_syncflag_ht(vap, -IEEE80211_FHT_HT);
2928                 if (ireq->i_val & 2)
2929                         ieee80211_syncflag_ht(vap, IEEE80211_FHT_USEHT40);
2930                 else
2931                         ieee80211_syncflag_ht(vap, -IEEE80211_FHT_USEHT40);
2932                 error = ENETRESET;
2933                 break;
2934         case IEEE80211_IOC_ADDMAC:
2935         case IEEE80211_IOC_DELMAC:
2936                 error = ieee80211_ioctl_macmac(vap, ireq);
2937                 break;
2938         case IEEE80211_IOC_MACCMD:
2939                 error = ieee80211_ioctl_setmaccmd(vap, ireq);
2940                 break;
2941         case IEEE80211_IOC_STA_STATS:
2942                 error = ieee80211_ioctl_setstastats(vap, ireq);
2943                 break;
2944         case IEEE80211_IOC_STA_TXPOW:
2945                 error = ieee80211_ioctl_setstatxpow(vap, ireq);
2946                 break;
2947         case IEEE80211_IOC_WME_CWMIN:           /* WME: CWmin */
2948         case IEEE80211_IOC_WME_CWMAX:           /* WME: CWmax */
2949         case IEEE80211_IOC_WME_AIFS:            /* WME: AIFS */
2950         case IEEE80211_IOC_WME_TXOPLIMIT:       /* WME: txops limit */
2951         case IEEE80211_IOC_WME_ACM:             /* WME: ACM (bss only) */
2952         case IEEE80211_IOC_WME_ACKPOLICY:       /* WME: ACK policy (bss only) */
2953                 error = ieee80211_ioctl_setwmeparam(vap, ireq);
2954                 break;
2955         case IEEE80211_IOC_DTIM_PERIOD:
2956                 if (vap->iv_opmode != IEEE80211_M_HOSTAP &&
2957                     vap->iv_opmode != IEEE80211_M_MBSS &&
2958                     vap->iv_opmode != IEEE80211_M_IBSS)
2959                         return EINVAL;
2960                 if (IEEE80211_DTIM_MIN <= ireq->i_val &&
2961                     ireq->i_val <= IEEE80211_DTIM_MAX) {
2962                         vap->iv_dtim_period = ireq->i_val;
2963                         error = ENETRESET;              /* requires restart */
2964                 } else
2965                         error = EINVAL;
2966                 break;
2967         case IEEE80211_IOC_BEACON_INTERVAL:
2968                 if (vap->iv_opmode != IEEE80211_M_HOSTAP &&
2969                     vap->iv_opmode != IEEE80211_M_MBSS &&
2970                     vap->iv_opmode != IEEE80211_M_IBSS)
2971                         return EINVAL;
2972                 if (IEEE80211_BINTVAL_MIN <= ireq->i_val &&
2973                     ireq->i_val <= IEEE80211_BINTVAL_MAX) {
2974                         ic->ic_bintval = ireq->i_val;
2975                         error = ENETRESET;              /* requires restart */
2976                 } else
2977                         error = EINVAL;
2978                 break;
2979         case IEEE80211_IOC_PUREG:
2980                 if (ireq->i_val)
2981                         vap->iv_flags |= IEEE80211_F_PUREG;
2982                 else
2983                         vap->iv_flags &= ~IEEE80211_F_PUREG;
2984                 /* NB: reset only if we're operating on an 11g channel */
2985                 if (isvap11g(vap))
2986                         error = ENETRESET;
2987                 break;
2988         case IEEE80211_IOC_QUIET:
2989                 vap->iv_quiet= ireq->i_val;
2990                 break;
2991         case IEEE80211_IOC_QUIET_COUNT:
2992                 vap->iv_quiet_count=ireq->i_val;
2993                 break;
2994         case IEEE80211_IOC_QUIET_PERIOD:
2995                 vap->iv_quiet_period=ireq->i_val;
2996                 break;
2997         case IEEE80211_IOC_QUIET_OFFSET:
2998                 vap->iv_quiet_offset=ireq->i_val;
2999                 break;
3000         case IEEE80211_IOC_QUIET_DUR:
3001                 if(ireq->i_val < vap->iv_bss->ni_intval)
3002                         vap->iv_quiet_duration = ireq->i_val;
3003                 else
3004                         error = EINVAL;
3005                 break;
3006         case IEEE80211_IOC_BGSCAN:
3007                 if (ireq->i_val) {
3008                         if ((vap->iv_caps & IEEE80211_C_BGSCAN) == 0)
3009                                 return EOPNOTSUPP;
3010                         vap->iv_flags |= IEEE80211_F_BGSCAN;
3011                 } else
3012                         vap->iv_flags &= ~IEEE80211_F_BGSCAN;
3013                 break;
3014         case IEEE80211_IOC_BGSCAN_IDLE:
3015                 if (ireq->i_val >= IEEE80211_BGSCAN_IDLE_MIN)
3016                         vap->iv_bgscanidle = ireq->i_val*hz/1000;
3017                 else
3018                         error = EINVAL;
3019                 break;
3020         case IEEE80211_IOC_BGSCAN_INTERVAL:
3021                 if (ireq->i_val >= IEEE80211_BGSCAN_INTVAL_MIN)
3022                         vap->iv_bgscanintvl = ireq->i_val*hz;
3023                 else
3024                         error = EINVAL;
3025                 break;
3026         case IEEE80211_IOC_SCANVALID:
3027                 if (ireq->i_val >= IEEE80211_SCAN_VALID_MIN)
3028                         vap->iv_scanvalid = ireq->i_val*hz;
3029                 else
3030                         error = EINVAL;
3031                 break;
3032         case IEEE80211_IOC_FRAGTHRESHOLD:
3033                 if ((vap->iv_caps & IEEE80211_C_TXFRAG) == 0 &&
3034                     ireq->i_val != IEEE80211_FRAG_MAX)
3035                         return EOPNOTSUPP;
3036                 if (!(IEEE80211_FRAG_MIN <= ireq->i_val &&
3037                       ireq->i_val <= IEEE80211_FRAG_MAX))
3038                         return EINVAL;
3039                 vap->iv_fragthreshold = ireq->i_val;
3040                 error = ERESTART;
3041                 break;
3042         case IEEE80211_IOC_BURST:
3043                 if (ireq->i_val) {
3044                         if ((vap->iv_caps & IEEE80211_C_BURST) == 0)
3045                                 return EOPNOTSUPP;
3046                         ieee80211_syncflag(vap, IEEE80211_F_BURST);
3047                 } else
3048                         ieee80211_syncflag(vap, -IEEE80211_F_BURST);
3049                 error = ERESTART;
3050                 break;
3051         case IEEE80211_IOC_BMISSTHRESHOLD:
3052                 if (!(IEEE80211_HWBMISS_MIN <= ireq->i_val &&
3053                       ireq->i_val <= IEEE80211_HWBMISS_MAX))
3054                         return EINVAL;
3055                 vap->iv_bmissthreshold = ireq->i_val;
3056                 error = ERESTART;
3057                 break;
3058         case IEEE80211_IOC_CURCHAN:
3059                 error = ieee80211_ioctl_setcurchan(vap, ireq);
3060                 break;
3061         case IEEE80211_IOC_SHORTGI:
3062                 if (ireq->i_val) {
3063 #define IEEE80211_HTCAP_SHORTGI \
3064         (IEEE80211_HTCAP_SHORTGI20 | IEEE80211_HTCAP_SHORTGI40)
3065                         if (((ireq->i_val ^ vap->iv_htcaps) & IEEE80211_HTCAP_SHORTGI) != 0)
3066                                 return EINVAL;
3067                         if (ireq->i_val & IEEE80211_HTCAP_SHORTGI20)
3068                                 vap->iv_flags_ht |= IEEE80211_FHT_SHORTGI20;
3069                         if (ireq->i_val & IEEE80211_HTCAP_SHORTGI40)
3070                                 vap->iv_flags_ht |= IEEE80211_FHT_SHORTGI40;
3071 #undef IEEE80211_HTCAP_SHORTGI
3072                 } else
3073                         vap->iv_flags_ht &=
3074                             ~(IEEE80211_FHT_SHORTGI20 | IEEE80211_FHT_SHORTGI40);
3075                 error = ERESTART;
3076                 break;
3077         case IEEE80211_IOC_AMPDU:
3078                 if (ireq->i_val && (vap->iv_htcaps & IEEE80211_HTC_AMPDU) == 0)
3079                         return EINVAL;
3080                 if (ireq->i_val & 1)
3081                         vap->iv_flags_ht |= IEEE80211_FHT_AMPDU_TX;
3082                 else
3083                         vap->iv_flags_ht &= ~IEEE80211_FHT_AMPDU_TX;
3084                 if (ireq->i_val & 2)
3085                         vap->iv_flags_ht |= IEEE80211_FHT_AMPDU_RX;
3086                 else
3087                         vap->iv_flags_ht &= ~IEEE80211_FHT_AMPDU_RX;
3088                 /* NB: reset only if we're operating on an 11n channel */
3089                 if (isvapht(vap))
3090                         error = ERESTART;
3091                 break;
3092         case IEEE80211_IOC_AMPDU_LIMIT:
3093                 if (!(IEEE80211_HTCAP_MAXRXAMPDU_8K <= ireq->i_val &&
3094                       ireq->i_val <= IEEE80211_HTCAP_MAXRXAMPDU_64K))
3095                         return EINVAL;
3096                 if (vap->iv_opmode == IEEE80211_M_HOSTAP)
3097                         vap->iv_ampdu_rxmax = ireq->i_val;
3098                 else
3099                         vap->iv_ampdu_limit = ireq->i_val;
3100                 error = ERESTART;
3101                 break;
3102         case IEEE80211_IOC_AMPDU_DENSITY:
3103                 if (!(IEEE80211_HTCAP_MPDUDENSITY_NA <= ireq->i_val &&
3104                       ireq->i_val <= IEEE80211_HTCAP_MPDUDENSITY_16))
3105                         return EINVAL;
3106                 vap->iv_ampdu_density = ireq->i_val;
3107                 error = ERESTART;
3108                 break;
3109         case IEEE80211_IOC_AMSDU:
3110                 if (ireq->i_val && (vap->iv_htcaps & IEEE80211_HTC_AMSDU) == 0)
3111                         return EINVAL;
3112                 if (ireq->i_val & 1)
3113                         vap->iv_flags_ht |= IEEE80211_FHT_AMSDU_TX;
3114                 else
3115                         vap->iv_flags_ht &= ~IEEE80211_FHT_AMSDU_TX;
3116                 if (ireq->i_val & 2)
3117                         vap->iv_flags_ht |= IEEE80211_FHT_AMSDU_RX;
3118                 else
3119                         vap->iv_flags_ht &= ~IEEE80211_FHT_AMSDU_RX;
3120                 /* NB: reset only if we're operating on an 11n channel */
3121                 if (isvapht(vap))
3122                         error = ERESTART;
3123                 break;
3124         case IEEE80211_IOC_AMSDU_LIMIT:
3125                 /* XXX validate */
3126                 vap->iv_amsdu_limit = ireq->i_val;      /* XXX truncation? */
3127                 break;
3128         case IEEE80211_IOC_PUREN:
3129                 if (ireq->i_val) {
3130                         if ((vap->iv_flags_ht & IEEE80211_FHT_HT) == 0)
3131                                 return EINVAL;
3132                         vap->iv_flags_ht |= IEEE80211_FHT_PUREN;
3133                 } else
3134                         vap->iv_flags_ht &= ~IEEE80211_FHT_PUREN;
3135                 /* NB: reset only if we're operating on an 11n channel */
3136                 if (isvapht(vap))
3137                         error = ERESTART;
3138                 break;
3139         case IEEE80211_IOC_DOTH:
3140                 if (ireq->i_val) {
3141 #if 0
3142                         /* XXX no capability */
3143                         if ((vap->iv_caps & IEEE80211_C_DOTH) == 0)
3144                                 return EOPNOTSUPP;
3145 #endif
3146                         vap->iv_flags |= IEEE80211_F_DOTH;
3147                 } else
3148                         vap->iv_flags &= ~IEEE80211_F_DOTH;
3149                 error = ENETRESET;
3150                 break;
3151         case IEEE80211_IOC_REGDOMAIN:
3152                 error = ieee80211_ioctl_setregdomain(vap, ireq);
3153                 break;
3154         case IEEE80211_IOC_ROAM:
3155                 error = ieee80211_ioctl_setroam(vap, ireq);
3156                 break;
3157         case IEEE80211_IOC_TXPARAMS:
3158                 error = ieee80211_ioctl_settxparams(vap, ireq);
3159                 break;
3160         case IEEE80211_IOC_HTCOMPAT:
3161                 if (ireq->i_val) {
3162                         if ((vap->iv_flags_ht & IEEE80211_FHT_HT) == 0)
3163                                 return EOPNOTSUPP;
3164                         vap->iv_flags_ht |= IEEE80211_FHT_HTCOMPAT;
3165                 } else
3166                         vap->iv_flags_ht &= ~IEEE80211_FHT_HTCOMPAT;
3167                 /* NB: reset only if we're operating on an 11n channel */
3168                 if (isvapht(vap))
3169                         error = ERESTART;
3170                 break;
3171         case IEEE80211_IOC_DWDS:
3172                 if (ireq->i_val) {
3173                         /* NB: DWDS only makes sense for WDS-capable devices */
3174                         if ((ic->ic_caps & IEEE80211_C_WDS) == 0)
3175                                 return EOPNOTSUPP;
3176                         /* NB: DWDS is used only with ap+sta vaps */
3177                         if (vap->iv_opmode != IEEE80211_M_HOSTAP &&
3178                             vap->iv_opmode != IEEE80211_M_STA)
3179                                 return EINVAL;
3180                         vap->iv_flags |= IEEE80211_F_DWDS;
3181                         if (vap->iv_opmode == IEEE80211_M_STA)
3182                                 vap->iv_flags_ext |= IEEE80211_FEXT_4ADDR;
3183                 } else {
3184                         vap->iv_flags &= ~IEEE80211_F_DWDS;
3185                         if (vap->iv_opmode == IEEE80211_M_STA)
3186                                 vap->iv_flags_ext &= ~IEEE80211_FEXT_4ADDR;
3187                 }
3188                 break;
3189         case IEEE80211_IOC_INACTIVITY:
3190                 if (ireq->i_val)
3191                         vap->iv_flags_ext |= IEEE80211_FEXT_INACT;
3192                 else
3193                         vap->iv_flags_ext &= ~IEEE80211_FEXT_INACT;
3194                 break;
3195         case IEEE80211_IOC_APPIE:
3196                 error = ieee80211_ioctl_setappie(vap, ireq);
3197                 break;
3198         case IEEE80211_IOC_WPS:
3199                 if (ireq->i_val) {
3200                         if ((vap->iv_caps & IEEE80211_C_WPA) == 0)
3201                                 return EOPNOTSUPP;
3202                         vap->iv_flags_ext |= IEEE80211_FEXT_WPS;
3203                 } else
3204                         vap->iv_flags_ext &= ~IEEE80211_FEXT_WPS;
3205                 break;
3206         case IEEE80211_IOC_TSN:
3207                 if (ireq->i_val) {
3208                         if ((vap->iv_caps & IEEE80211_C_WPA) == 0)
3209                                 return EOPNOTSUPP;
3210                         vap->iv_flags_ext |= IEEE80211_FEXT_TSN;
3211                 } else
3212                         vap->iv_flags_ext &= ~IEEE80211_FEXT_TSN;
3213                 break;
3214         case IEEE80211_IOC_CHANSWITCH:
3215                 error = ieee80211_ioctl_chanswitch(vap, ireq);
3216                 break;
3217         case IEEE80211_IOC_DFS:
3218                 if (ireq->i_val) {
3219                         if ((vap->iv_caps & IEEE80211_C_DFS) == 0)
3220                                 return EOPNOTSUPP;
3221                         /* NB: DFS requires 11h support */
3222                         if ((vap->iv_flags & IEEE80211_F_DOTH) == 0)
3223                                 return EINVAL;
3224                         vap->iv_flags_ext |= IEEE80211_FEXT_DFS;
3225                 } else
3226                         vap->iv_flags_ext &= ~IEEE80211_FEXT_DFS;
3227                 break;
3228         case IEEE80211_IOC_DOTD:
3229                 if (ireq->i_val)
3230                         vap->iv_flags_ext |= IEEE80211_FEXT_DOTD;
3231                 else
3232                         vap->iv_flags_ext &= ~IEEE80211_FEXT_DOTD;
3233                 if (vap->iv_opmode == IEEE80211_M_STA)
3234                         error = ENETRESET;
3235                 break;
3236         case IEEE80211_IOC_HTPROTMODE:
3237                 if (ireq->i_val > IEEE80211_PROT_RTSCTS)
3238                         return EINVAL;
3239                 ic->ic_htprotmode = ireq->i_val ?
3240                     IEEE80211_PROT_RTSCTS : IEEE80211_PROT_NONE;
3241                 /* NB: if not operating in 11n this can wait */
3242                 if (isvapht(vap))
3243                         error = ERESTART;
3244                 break;
3245         case IEEE80211_IOC_STA_VLAN:
3246                 error = ieee80211_ioctl_setstavlan(vap, ireq);
3247                 break;
3248         case IEEE80211_IOC_SMPS:
3249                 if ((ireq->i_val &~ IEEE80211_HTCAP_SMPS) != 0 ||
3250                     ireq->i_val == 0x0008)      /* value of 2 is reserved */
3251                         return EINVAL;
3252                 if (ireq->i_val != IEEE80211_HTCAP_SMPS_OFF &&
3253                     (vap->iv_htcaps & IEEE80211_HTC_SMPS) == 0)
3254                         return EOPNOTSUPP;
3255                 vap->iv_htcaps = (vap->iv_htcaps &~ IEEE80211_HTCAP_SMPS) |
3256                         ireq->i_val;
3257                 /* NB: if not operating in 11n this can wait */
3258                 if (isvapht(vap))
3259                         error = ERESTART;
3260                 break;
3261         case IEEE80211_IOC_RIFS:
3262                 if (ireq->i_val != 0) {
3263                         if ((vap->iv_htcaps & IEEE80211_HTC_RIFS) == 0)
3264                                 return EOPNOTSUPP;
3265                         vap->iv_flags_ht |= IEEE80211_FHT_RIFS;
3266                 } else
3267                         vap->iv_flags_ht &= ~IEEE80211_FHT_RIFS;
3268                 /* NB: if not operating in 11n this can wait */
3269                 if (isvapht(vap))
3270                         error = ERESTART;
3271                 break;
3272         default:
3273                 error = ieee80211_ioctl_setdefault(vap, ireq);
3274                 break;
3275         }
3276         /*
3277          * The convention is that ENETRESET means an operation
3278          * requires a complete re-initialization of the device (e.g.
3279          * changing something that affects the association state).
3280          * ERESTART means the request may be handled with only a
3281          * reload of the hardware state.  We hand ERESTART requests
3282          * to the iv_reset callback so the driver can decide.  If
3283          * a device does not fillin iv_reset then it defaults to one
3284          * that returns ENETRESET.  Otherwise a driver may return
3285          * ENETRESET (in which case a full reset will be done) or
3286          * 0 to mean there's no need to do anything (e.g. when the
3287          * change has no effect on the driver/device).
3288          */
3289         if (error == ERESTART)
3290                 error = IFNET_IS_UP_RUNNING(vap->iv_ifp) ?
3291                     vap->iv_reset(vap, ireq->i_type) : 0;
3292         if (error == ENETRESET) {
3293                 /* XXX need to re-think AUTO handling */
3294                 if (IS_UP_AUTO(vap))
3295                         ieee80211_init(vap);
3296                 error = 0;
3297         }
3298         return error;
3299 }
3300
3301 /*
3302  * Rebuild the parent's multicast address list after an add/del
3303  * of a multicast address for a vap.  We have no way to tell
3304  * what happened above to optimize the work so we purge the entire
3305  * list and rebuild from scratch.  This is way expensive.
3306  * Note also the half-baked workaround for if_addmulti calling
3307  * back to the parent device; there's no way to insert mcast
3308  * entries quietly and/or cheaply.
3309  */
3310 static void
3311 ieee80211_ioctl_updatemulti(struct ieee80211com *ic)
3312 {
3313         struct ifnet *parent = ic->ic_ifp;
3314         struct ieee80211vap *vap;
3315         void *ioctl;
3316
3317         IEEE80211_LOCK(ic);
3318         if_delallmulti(parent);
3319         ioctl = parent->if_ioctl;       /* XXX WAR if_allmulti */
3320         parent->if_ioctl = NULL;
3321         TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) {
3322                 struct ifnet *ifp = vap->iv_ifp;
3323                 struct ifmultiaddr *ifma;
3324
3325                 TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
3326                         if (ifma->ifma_addr->sa_family != AF_LINK)
3327                                 continue;
3328                         (void) if_addmulti(parent, ifma->ifma_addr, NULL);
3329                 }
3330         }
3331         parent->if_ioctl = ioctl;
3332         ieee80211_runtask(ic, &ic->ic_mcast_task);
3333         IEEE80211_UNLOCK(ic);
3334 }
3335
3336 int
3337 ieee80211_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
3338 {
3339         struct ieee80211vap *vap = ifp->if_softc;
3340         struct ieee80211com *ic = vap->iv_ic;
3341         int error = 0;
3342         struct ifreq *ifr;
3343         struct ifaddr *ifa;                     /* XXX */
3344
3345         switch (cmd) {
3346         case SIOCSIFFLAGS:
3347                 IEEE80211_LOCK(ic);
3348                 ieee80211_syncifflag_locked(ic, IFF_PROMISC);
3349                 ieee80211_syncifflag_locked(ic, IFF_ALLMULTI);
3350                 if (ifp->if_flags & IFF_UP) {
3351                         /*
3352                          * Bring ourself up unless we're already operational.
3353                          * If we're the first vap and the parent is not up
3354                          * then it will automatically be brought up as a
3355                          * side-effect of bringing ourself up.
3356                          */
3357                         if (vap->iv_state == IEEE80211_S_INIT)
3358                                 ieee80211_start_locked(vap);
3359                 } else if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
3360                         /*
3361                          * Stop ourself.  If we are the last vap to be
3362                          * marked down the parent will also be taken down.
3363                          */
3364                         ieee80211_stop_locked(vap);
3365                 }
3366                 IEEE80211_UNLOCK(ic);
3367                 /* Wait for parent ioctl handler if it was queued */
3368                 ieee80211_waitfor_parent(ic);
3369                 break;
3370         case SIOCADDMULTI:
3371         case SIOCDELMULTI:
3372                 ieee80211_ioctl_updatemulti(ic);
3373                 break;
3374         case SIOCSIFMEDIA:
3375         case SIOCGIFMEDIA:
3376                 ifr = (struct ifreq *)data;
3377                 error = ifmedia_ioctl(ifp, ifr, &vap->iv_media, cmd);
3378                 break;
3379         case SIOCG80211:
3380                 error = ieee80211_ioctl_get80211(vap, cmd,
3381                                 (struct ieee80211req *) data);
3382                 break;
3383         case SIOCS80211:
3384                 error = priv_check(curthread, PRIV_NET80211_MANAGE);
3385                 if (error == 0)
3386                         error = ieee80211_ioctl_set80211(vap, cmd,
3387                                         (struct ieee80211req *) data);
3388                 break;
3389         case SIOCG80211STATS:
3390                 ifr = (struct ifreq *)data;
3391                 copyout(&vap->iv_stats, ifr->ifr_data, sizeof (vap->iv_stats));
3392                 break;
3393         case SIOCSIFMTU:
3394                 ifr = (struct ifreq *)data;
3395                 if (!(IEEE80211_MTU_MIN <= ifr->ifr_mtu &&
3396                     ifr->ifr_mtu <= IEEE80211_MTU_MAX))
3397                         error = EINVAL;
3398                 else
3399                         ifp->if_mtu = ifr->ifr_mtu;
3400                 break;
3401         case SIOCSIFADDR:
3402                 /*
3403                  * XXX Handle this directly so we can supress if_init calls.
3404                  * XXX This should be done in ether_ioctl but for the moment
3405                  * XXX there are too many other parts of the system that
3406                  * XXX set IFF_UP and so supress if_init being called when
3407                  * XXX it should be.
3408                  */
3409                 ifa = (struct ifaddr *) data;
3410                 switch (ifa->ifa_addr->sa_family) {
3411 #ifdef INET
3412                 case AF_INET:
3413                         if ((ifp->if_flags & IFF_UP) == 0) {
3414                                 ifp->if_flags |= IFF_UP;
3415                                 ifp->if_init(ifp->if_softc);
3416                         }
3417                         arp_ifinit(ifp, ifa);
3418                         break;
3419 #endif
3420 #ifdef IPX
3421                 /*
3422                  * XXX - This code is probably wrong,
3423                  *       but has been copied many times.
3424                  */
3425                 case AF_IPX: {
3426                         struct ipx_addr *ina = &(IA_SIPX(ifa)->sipx_addr);
3427
3428                         if (ipx_nullhost(*ina))
3429                                 ina->x_host = *(union ipx_host *)
3430                                     IF_LLADDR(ifp);
3431                         else
3432                                 bcopy((caddr_t) ina->x_host.c_host,
3433                                       (caddr_t) IF_LLADDR(ifp),
3434                                       ETHER_ADDR_LEN);
3435                         /* fall thru... */
3436                 }
3437 #endif
3438                 default:
3439                         if ((ifp->if_flags & IFF_UP) == 0) {
3440                                 ifp->if_flags |= IFF_UP;
3441                                 ifp->if_init(ifp->if_softc);
3442                         }
3443                         break;
3444                 }
3445                 break;
3446         /* Pass NDIS ioctls up to the driver */
3447         case SIOCGDRVSPEC:
3448         case SIOCSDRVSPEC:
3449         case SIOCGPRIVATE_0: {
3450                 struct ifnet *parent = vap->iv_ic->ic_ifp;
3451                 error = parent->if_ioctl(parent, cmd, data);
3452                 break;
3453         }
3454         default:
3455                 error = ether_ioctl(ifp, cmd, data);
3456                 break;
3457         }
3458         return error;
3459 }