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         int 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 int 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                 size_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, int 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 int 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_BGSCAN:
 976                 ireq->i_val = (vap->iv_flags & IEEE80211_F_BGSCAN) != 0;
 977                 break;
 978         case IEEE80211_IOC_BGSCAN_IDLE:
 979                 ireq->i_val = vap->iv_bgscanidle*hz/1000;       /* ms */
 980                 break;
 981         case IEEE80211_IOC_BGSCAN_INTERVAL:
 982                 ireq->i_val = vap->iv_bgscanintvl/hz;           /* seconds */
 983                 break;
 984         case IEEE80211_IOC_SCANVALID:
 985                 ireq->i_val = vap->iv_scanvalid/hz;             /* seconds */
 986                 break;
 987         case IEEE80211_IOC_FRAGTHRESHOLD:
 988                 ireq->i_val = vap->iv_fragthreshold;
 989                 break;
 990         case IEEE80211_IOC_MACCMD:
 991                 error = ieee80211_ioctl_getmaccmd(vap, ireq);
 992                 break;
 993         case IEEE80211_IOC_BURST:
 994                 ireq->i_val = (vap->iv_flags & IEEE80211_F_BURST) != 0;
 995                 break;
 996         case IEEE80211_IOC_BMISSTHRESHOLD:
 997                 ireq->i_val = vap->iv_bmissthreshold;
 998                 break;
 999         case IEEE80211_IOC_CURCHAN:
1000                 error = ieee80211_ioctl_getcurchan(vap, ireq);
1001                 break;
1002         case IEEE80211_IOC_SHORTGI:
1003                 ireq->i_val = 0;
1004                 if (vap->iv_flags_ht & IEEE80211_FHT_SHORTGI20)
1005                         ireq->i_val |= IEEE80211_HTCAP_SHORTGI20;
1006                 if (vap->iv_flags_ht & IEEE80211_FHT_SHORTGI40)
1007                         ireq->i_val |= IEEE80211_HTCAP_SHORTGI40;
1008                 break;
1009         case IEEE80211_IOC_AMPDU:
1010                 ireq->i_val = 0;
1011                 if (vap->iv_flags_ht & IEEE80211_FHT_AMPDU_TX)
1012                         ireq->i_val |= 1;
1013                 if (vap->iv_flags_ht & IEEE80211_FHT_AMPDU_RX)
1014                         ireq->i_val |= 2;
1015                 break;
1016         case IEEE80211_IOC_AMPDU_LIMIT:
1017                 if (vap->iv_opmode == IEEE80211_M_HOSTAP)
1018                         ireq->i_val = vap->iv_ampdu_rxmax;
1019                 else if (vap->iv_state == IEEE80211_S_RUN)
1020                         ireq->i_val = MS(vap->iv_bss->ni_htparam,
1021                             IEEE80211_HTCAP_MAXRXAMPDU);
1022                 else
1023                         ireq->i_val = vap->iv_ampdu_limit;
1024                 break;
1025         case IEEE80211_IOC_AMPDU_DENSITY:
1026                 if (vap->iv_opmode == IEEE80211_M_STA &&
1027                     vap->iv_state == IEEE80211_S_RUN)
1028                         ireq->i_val = MS(vap->iv_bss->ni_htparam,
1029                             IEEE80211_HTCAP_MPDUDENSITY);
1030                 else
1031                         ireq->i_val = vap->iv_ampdu_density;
1032                 break;
1033         case IEEE80211_IOC_AMSDU:
1034                 ireq->i_val = 0;
1035                 if (vap->iv_flags_ht & IEEE80211_FHT_AMSDU_TX)
1036                         ireq->i_val |= 1;
1037                 if (vap->iv_flags_ht & IEEE80211_FHT_AMSDU_RX)
1038                         ireq->i_val |= 2;
1039                 break;
1040         case IEEE80211_IOC_AMSDU_LIMIT:
1041                 ireq->i_val = vap->iv_amsdu_limit;      /* XXX truncation? */
1042                 break;
1043         case IEEE80211_IOC_PUREN:
1044                 ireq->i_val = (vap->iv_flags_ht & IEEE80211_FHT_PUREN) != 0;
1045                 break;
1046         case IEEE80211_IOC_DOTH:
1047                 ireq->i_val = (vap->iv_flags & IEEE80211_F_DOTH) != 0;
1048                 break;
1049         case IEEE80211_IOC_REGDOMAIN:
1050                 error = ieee80211_ioctl_getregdomain(vap, ireq);
1051                 break;
1052         case IEEE80211_IOC_ROAM:
1053                 error = ieee80211_ioctl_getroam(vap, ireq);
1054                 break;
1055         case IEEE80211_IOC_TXPARAMS:
1056                 error = ieee80211_ioctl_gettxparams(vap, ireq);
1057                 break;
1058         case IEEE80211_IOC_HTCOMPAT:
1059                 ireq->i_val = (vap->iv_flags_ht & IEEE80211_FHT_HTCOMPAT) != 0;
1060                 break;
1061         case IEEE80211_IOC_DWDS:
1062                 ireq->i_val = (vap->iv_flags & IEEE80211_F_DWDS) != 0;
1063                 break;
1064         case IEEE80211_IOC_INACTIVITY:
1065                 ireq->i_val = (vap->iv_flags_ext & IEEE80211_FEXT_INACT) != 0;
1066                 break;
1067         case IEEE80211_IOC_APPIE:
1068                 error = ieee80211_ioctl_getappie(vap, ireq);
1069                 break;
1070         case IEEE80211_IOC_WPS:
1071                 ireq->i_val = (vap->iv_flags_ext & IEEE80211_FEXT_WPS) != 0;
1072                 break;
1073         case IEEE80211_IOC_TSN:
1074                 ireq->i_val = (vap->iv_flags_ext & IEEE80211_FEXT_TSN) != 0;
1075                 break;
1076         case IEEE80211_IOC_DFS:
1077                 ireq->i_val = (vap->iv_flags_ext & IEEE80211_FEXT_DFS) != 0;
1078                 break;
1079         case IEEE80211_IOC_DOTD:
1080                 ireq->i_val = (vap->iv_flags_ext & IEEE80211_FEXT_DOTD) != 0;
1081                 break;
1082         case IEEE80211_IOC_DEVCAPS:
1083                 error = ieee80211_ioctl_getdevcaps(ic, ireq);
1084                 break;
1085         case IEEE80211_IOC_HTPROTMODE:
1086                 ireq->i_val = ic->ic_htprotmode;
1087                 break;
1088         case IEEE80211_IOC_HTCONF:
1089                 if (vap->iv_flags_ht & IEEE80211_FHT_HT) {
1090                         ireq->i_val = 1;
1091                         if (vap->iv_flags_ht & IEEE80211_FHT_USEHT40)
1092                                 ireq->i_val |= 2;
1093                 } else
1094                         ireq->i_val = 0;
1095                 break;
1096         case IEEE80211_IOC_STA_VLAN:
1097                 error = ieee80211_ioctl_getstavlan(vap, ireq);
1098                 break;
1099         case IEEE80211_IOC_SMPS:
1100                 if (vap->iv_opmode == IEEE80211_M_STA &&
1101                     vap->iv_state == IEEE80211_S_RUN) {
1102                         if (vap->iv_bss->ni_flags & IEEE80211_NODE_MIMO_RTS)
1103                                 ireq->i_val = IEEE80211_HTCAP_SMPS_DYNAMIC;
1104                         else if (vap->iv_bss->ni_flags & IEEE80211_NODE_MIMO_PS)
1105                                 ireq->i_val = IEEE80211_HTCAP_SMPS_ENA;
1106                         else
1107                                 ireq->i_val = IEEE80211_HTCAP_SMPS_OFF;
1108                 } else
1109                         ireq->i_val = vap->iv_htcaps & IEEE80211_HTCAP_SMPS;
1110                 break;
1111         case IEEE80211_IOC_RIFS:
1112                 if (vap->iv_opmode == IEEE80211_M_STA &&
1113                     vap->iv_state == IEEE80211_S_RUN)
1114                         ireq->i_val =
1115                             (vap->iv_bss->ni_flags & IEEE80211_NODE_RIFS) != 0;
1116                 else
1117                         ireq->i_val =
1118                             (vap->iv_flags_ht & IEEE80211_FHT_RIFS) != 0;
1119                 break;
1120         default:
1121                 error = ieee80211_ioctl_getdefault(vap, ireq);
1122                 break;
1123         }
1124         return error;
1125 #undef MS
1126 }
1127
1128 static __noinline int
1129 ieee80211_ioctl_setkey(struct ieee80211vap *vap, struct ieee80211req *ireq)
1130 {
1131         struct ieee80211req_key ik;
1132         struct ieee80211_node *ni;
1133         struct ieee80211_key *wk;
1134         uint16_t kid;
1135         int error, i;
1136
1137         if (ireq->i_len != sizeof(ik))
1138                 return EINVAL;
1139         error = copyin(ireq->i_data, &ik, sizeof(ik));
1140         if (error)
1141                 return error;
1142         /* NB: cipher support is verified by ieee80211_crypt_newkey */
1143         /* NB: this also checks ik->ik_keylen > sizeof(wk->wk_key) */
1144         if (ik.ik_keylen > sizeof(ik.ik_keydata))
1145                 return E2BIG;
1146         kid = ik.ik_keyix;
1147         if (kid == IEEE80211_KEYIX_NONE) {
1148                 /* XXX unicast keys currently must be tx/rx */
1149                 if (ik.ik_flags != (IEEE80211_KEY_XMIT | IEEE80211_KEY_RECV))
1150                         return EINVAL;
1151                 if (vap->iv_opmode == IEEE80211_M_STA) {
1152                         ni = ieee80211_ref_node(vap->iv_bss);
1153                         if (!IEEE80211_ADDR_EQ(ik.ik_macaddr, ni->ni_bssid)) {
1154                                 ieee80211_free_node(ni);
1155                                 return EADDRNOTAVAIL;
1156                         }
1157                 } else {
1158                         ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap,
1159                                 ik.ik_macaddr);
1160                         if (ni == NULL)
1161                                 return ENOENT;
1162                 }
1163                 wk = &ni->ni_ucastkey;
1164         } else {
1165                 if (kid >= IEEE80211_WEP_NKID)
1166                         return EINVAL;
1167                 wk = &vap->iv_nw_keys[kid];
1168                 /*
1169                  * Global slots start off w/o any assigned key index.
1170                  * Force one here for consistency with IEEE80211_IOC_WEPKEY.
1171                  */
1172                 if (wk->wk_keyix == IEEE80211_KEYIX_NONE)
1173                         wk->wk_keyix = kid;
1174                 ni = NULL;
1175         }
1176         error = 0;
1177         ieee80211_key_update_begin(vap);
1178         if (ieee80211_crypto_newkey(vap, ik.ik_type, ik.ik_flags, wk)) {
1179                 wk->wk_keylen = ik.ik_keylen;
1180                 /* NB: MIC presence is implied by cipher type */
1181                 if (wk->wk_keylen > IEEE80211_KEYBUF_SIZE)
1182                         wk->wk_keylen = IEEE80211_KEYBUF_SIZE;
1183                 for (i = 0; i < IEEE80211_TID_SIZE; i++)
1184                         wk->wk_keyrsc[i] = ik.ik_keyrsc;
1185                 wk->wk_keytsc = 0;                      /* new key, reset */
1186                 memset(wk->wk_key, 0, sizeof(wk->wk_key));
1187                 memcpy(wk->wk_key, ik.ik_keydata, ik.ik_keylen);
1188                 IEEE80211_ADDR_COPY(wk->wk_macaddr,
1189                     ni != NULL ?  ni->ni_macaddr : ik.ik_macaddr);
1190                 if (!ieee80211_crypto_setkey(vap, wk))
1191                         error = EIO;
1192                 else if ((ik.ik_flags & IEEE80211_KEY_DEFAULT))
1193                         vap->iv_def_txkey = kid;
1194         } else
1195                 error = ENXIO;
1196         ieee80211_key_update_end(vap);
1197         if (ni != NULL)
1198                 ieee80211_free_node(ni);
1199         return error;
1200 }
1201
1202 static __noinline int
1203 ieee80211_ioctl_delkey(struct ieee80211vap *vap, struct ieee80211req *ireq)
1204 {
1205         struct ieee80211req_del_key dk;
1206         int kid, error;
1207
1208         if (ireq->i_len != sizeof(dk))
1209                 return EINVAL;
1210         error = copyin(ireq->i_data, &dk, sizeof(dk));
1211         if (error)
1212                 return error;
1213         kid = dk.idk_keyix;
1214         /* XXX uint8_t -> uint16_t */
1215         if (dk.idk_keyix == (uint8_t) IEEE80211_KEYIX_NONE) {
1216                 struct ieee80211_node *ni;
1217
1218                 if (vap->iv_opmode == IEEE80211_M_STA) {
1219                         ni = ieee80211_ref_node(vap->iv_bss);
1220                         if (!IEEE80211_ADDR_EQ(dk.idk_macaddr, ni->ni_bssid)) {
1221                                 ieee80211_free_node(ni);
1222                                 return EADDRNOTAVAIL;
1223                         }
1224                 } else {
1225                         ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap,
1226                                 dk.idk_macaddr);
1227                         if (ni == NULL)
1228                                 return ENOENT;
1229                 }
1230                 /* XXX error return */
1231                 ieee80211_node_delucastkey(ni);
1232                 ieee80211_free_node(ni);
1233         } else {
1234                 if (kid >= IEEE80211_WEP_NKID)
1235                         return EINVAL;
1236                 /* XXX error return */
1237                 ieee80211_crypto_delkey(vap, &vap->iv_nw_keys[kid]);
1238         }
1239         return 0;
1240 }
1241
1242 struct mlmeop {
1243         struct ieee80211vap *vap;
1244         int     op;
1245         int     reason;
1246 };
1247
1248 static void
1249 mlmedebug(struct ieee80211vap *vap, const uint8_t mac[IEEE80211_ADDR_LEN],
1250         int op, int reason)
1251 {
1252 #ifdef IEEE80211_DEBUG
1253         static const struct {
1254                 int mask;
1255                 const char *opstr;
1256         } ops[] = {
1257                 { 0, "op#0" },
1258                 { IEEE80211_MSG_IOCTL | IEEE80211_MSG_STATE |
1259                   IEEE80211_MSG_ASSOC, "assoc" },
1260                 { IEEE80211_MSG_IOCTL | IEEE80211_MSG_STATE |
1261                   IEEE80211_MSG_ASSOC, "disassoc" },
1262                 { IEEE80211_MSG_IOCTL | IEEE80211_MSG_STATE |
1263                   IEEE80211_MSG_AUTH, "deauth" },
1264                 { IEEE80211_MSG_IOCTL | IEEE80211_MSG_STATE |
1265                   IEEE80211_MSG_AUTH, "authorize" },
1266                 { IEEE80211_MSG_IOCTL | IEEE80211_MSG_STATE |
1267                   IEEE80211_MSG_AUTH, "unauthorize" },
1268         };
1269
1270         if (op == IEEE80211_MLME_AUTH) {
1271                 IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_IOCTL |
1272                     IEEE80211_MSG_STATE | IEEE80211_MSG_AUTH, mac,
1273                     "station authenticate %s via MLME (reason %d)",
1274                     reason == IEEE80211_STATUS_SUCCESS ? "ACCEPT" : "REJECT",
1275                     reason);
1276         } else if (!(IEEE80211_MLME_ASSOC <= op && op <= IEEE80211_MLME_AUTH)) {
1277                 IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_ANY, mac,
1278                     "unknown MLME request %d (reason %d)", op, reason);
1279         } else if (reason == IEEE80211_STATUS_SUCCESS) {
1280                 IEEE80211_NOTE_MAC(vap, ops[op].mask, mac,
1281                     "station %s via MLME", ops[op].opstr);
1282         } else {
1283                 IEEE80211_NOTE_MAC(vap, ops[op].mask, mac,
1284                     "station %s via MLME (reason %d)", ops[op].opstr, reason);
1285         }
1286 #endif /* IEEE80211_DEBUG */
1287 }
1288
1289 static void
1290 domlme(void *arg, struct ieee80211_node *ni)
1291 {
1292         struct mlmeop *mop = arg;
1293         struct ieee80211vap *vap = ni->ni_vap;
1294
1295         if (vap != mop->vap)
1296                 return;
1297         /*
1298          * NB: if ni_associd is zero then the node is already cleaned
1299          * up and we don't need to do this (we're safely holding a
1300          * reference but should otherwise not modify it's state).
1301          */
1302         if (ni->ni_associd == 0)
1303                 return;
1304         mlmedebug(vap, ni->ni_macaddr, mop->op, mop->reason);
1305         if (mop->op == IEEE80211_MLME_DEAUTH) {
1306                 IEEE80211_SEND_MGMT(ni, IEEE80211_FC0_SUBTYPE_DEAUTH,
1307                     mop->reason);
1308         } else {
1309                 IEEE80211_SEND_MGMT(ni, IEEE80211_FC0_SUBTYPE_DISASSOC,
1310                     mop->reason);
1311         }
1312         ieee80211_node_leave(ni);
1313 }
1314
1315 static int
1316 setmlme_dropsta(struct ieee80211vap *vap,
1317         const uint8_t mac[IEEE80211_ADDR_LEN], struct mlmeop *mlmeop)
1318 {
1319         struct ieee80211com *ic = vap->iv_ic;
1320         struct ieee80211_node_table *nt = &ic->ic_sta;
1321         struct ieee80211_node *ni;
1322         int error = 0;
1323
1324         /* NB: the broadcast address means do 'em all */
1325         if (!IEEE80211_ADDR_EQ(mac, ic->ic_ifp->if_broadcastaddr)) {
1326                 IEEE80211_NODE_LOCK(nt);
1327                 ni = ieee80211_find_node_locked(nt, mac);
1328                 if (ni != NULL) {
1329                         domlme(mlmeop, ni);
1330                         ieee80211_free_node(ni);
1331                 } else
1332                         error = ENOENT;
1333                 IEEE80211_NODE_UNLOCK(nt);
1334         } else {
1335                 ieee80211_iterate_nodes(nt, domlme, mlmeop);
1336         }
1337         return error;
1338 }
1339
1340 static __noinline int
1341 setmlme_common(struct ieee80211vap *vap, int op,
1342         const uint8_t mac[IEEE80211_ADDR_LEN], int reason)
1343 {
1344         struct ieee80211com *ic = vap->iv_ic;
1345         struct ieee80211_node_table *nt = &ic->ic_sta;
1346         struct ieee80211_node *ni;
1347         struct mlmeop mlmeop;
1348         int error;
1349
1350         error = 0;
1351         switch (op) {
1352         case IEEE80211_MLME_DISASSOC:
1353         case IEEE80211_MLME_DEAUTH:
1354                 switch (vap->iv_opmode) {
1355                 case IEEE80211_M_STA:
1356                         mlmedebug(vap, vap->iv_bss->ni_macaddr, op, reason);
1357                         /* XXX not quite right */
1358                         ieee80211_new_state(vap, IEEE80211_S_INIT, reason);
1359                         break;
1360                 case IEEE80211_M_HOSTAP:
1361                         mlmeop.vap = vap;
1362                         mlmeop.op = op;
1363                         mlmeop.reason = reason;
1364                         error = setmlme_dropsta(vap, mac, &mlmeop);
1365                         break;
1366                 case IEEE80211_M_WDS:
1367                         /* XXX user app should send raw frame? */
1368                         if (op != IEEE80211_MLME_DEAUTH) {
1369                                 error = EINVAL;
1370                                 break;
1371                         }
1372 #if 0
1373                         /* XXX accept any address, simplifies user code */
1374                         if (!IEEE80211_ADDR_EQ(mac, vap->iv_bss->ni_macaddr)) {
1375                                 error = EINVAL;
1376                                 break;
1377                         }
1378 #endif
1379                         mlmedebug(vap, vap->iv_bss->ni_macaddr, op, reason);
1380                         ni = ieee80211_ref_node(vap->iv_bss);
1381                         IEEE80211_SEND_MGMT(ni,
1382                             IEEE80211_FC0_SUBTYPE_DEAUTH, reason);
1383                         ieee80211_free_node(ni);
1384                         break;
1385                 default:
1386                         error = EINVAL;
1387                         break;
1388                 }
1389                 break;
1390         case IEEE80211_MLME_AUTHORIZE:
1391         case IEEE80211_MLME_UNAUTHORIZE:
1392                 if (vap->iv_opmode != IEEE80211_M_HOSTAP &&
1393                     vap->iv_opmode != IEEE80211_M_WDS) {
1394                         error = EINVAL;
1395                         break;
1396                 }
1397                 IEEE80211_NODE_LOCK(nt);
1398                 ni = ieee80211_find_vap_node_locked(nt, vap, mac);
1399                 if (ni != NULL) {
1400                         mlmedebug(vap, mac, op, reason);
1401                         if (op == IEEE80211_MLME_AUTHORIZE)
1402                                 ieee80211_node_authorize(ni);
1403                         else
1404                                 ieee80211_node_unauthorize(ni);
1405                         ieee80211_free_node(ni);
1406                 } else
1407                         error = ENOENT;
1408                 IEEE80211_NODE_UNLOCK(nt);
1409                 break;
1410         case IEEE80211_MLME_AUTH:
1411                 if (vap->iv_opmode != IEEE80211_M_HOSTAP) {
1412                         error = EINVAL;
1413                         break;
1414                 }
1415                 IEEE80211_NODE_LOCK(nt);
1416                 ni = ieee80211_find_vap_node_locked(nt, vap, mac);
1417                 if (ni != NULL) {
1418                         mlmedebug(vap, mac, op, reason);
1419                         if (reason == IEEE80211_STATUS_SUCCESS) {
1420                                 IEEE80211_SEND_MGMT(ni,
1421                                     IEEE80211_FC0_SUBTYPE_AUTH, 2);
1422                                 /*
1423                                  * For shared key auth, just continue the
1424                                  * exchange.  Otherwise when 802.1x is not in
1425                                  * use mark the port authorized at this point
1426                                  * so traffic can flow.
1427                                  */
1428                                 if (ni->ni_authmode != IEEE80211_AUTH_8021X &&
1429                                     ni->ni_challenge == NULL)
1430                                       ieee80211_node_authorize(ni);
1431                         } else {
1432                                 vap->iv_stats.is_rx_acl++;
1433                                 ieee80211_send_error(ni, ni->ni_macaddr,
1434                                     IEEE80211_FC0_SUBTYPE_AUTH, 2|(reason<<16));
1435                                 ieee80211_node_leave(ni);
1436                         }
1437                         ieee80211_free_node(ni);
1438                 } else
1439                         error = ENOENT;
1440                 IEEE80211_NODE_UNLOCK(nt);
1441                 break;
1442         default:
1443                 error = EINVAL;
1444                 break;
1445         }
1446         return error;
1447 }
1448
1449 struct scanlookup {
1450         const uint8_t *mac;
1451         int esslen;
1452         const uint8_t *essid;
1453         const struct ieee80211_scan_entry *se;
1454 };
1455
1456 /*
1457  * Match mac address and any ssid.
1458  */
1459 static void
1460 mlmelookup(void *arg, const struct ieee80211_scan_entry *se)
1461 {
1462         struct scanlookup *look = arg;
1463
1464         if (!IEEE80211_ADDR_EQ(look->mac, se->se_macaddr))
1465                 return;
1466         if (look->esslen != 0) {
1467                 if (se->se_ssid[1] != look->esslen)
1468                         return;
1469                 if (memcmp(look->essid, se->se_ssid+2, look->esslen))
1470                         return;
1471         }
1472         look->se = se;
1473 }
1474
1475 static __noinline int
1476 setmlme_assoc_sta(struct ieee80211vap *vap,
1477         const uint8_t mac[IEEE80211_ADDR_LEN], int ssid_len,
1478         const uint8_t ssid[IEEE80211_NWID_LEN])
1479 {
1480         struct scanlookup lookup;
1481
1482         KASSERT(vap->iv_opmode == IEEE80211_M_STA,
1483             ("expected opmode STA not %s",
1484             ieee80211_opmode_name[vap->iv_opmode]));
1485
1486         /* NB: this is racey if roaming is !manual */
1487         lookup.se = NULL;
1488         lookup.mac = mac;
1489         lookup.esslen = ssid_len;
1490         lookup.essid = ssid;
1491         ieee80211_scan_iterate(vap, mlmelookup, &lookup);
1492         if (lookup.se == NULL)
1493                 return ENOENT;
1494         mlmedebug(vap, mac, IEEE80211_MLME_ASSOC, 0);
1495         if (!ieee80211_sta_join(vap, lookup.se->se_chan, lookup.se))
1496                 return EIO;             /* XXX unique but could be better */
1497         return 0;
1498 }
1499
1500 static __noinline int
1501 setmlme_assoc_adhoc(struct ieee80211vap *vap,
1502         const uint8_t mac[IEEE80211_ADDR_LEN], int ssid_len,
1503         const uint8_t ssid[IEEE80211_NWID_LEN])
1504 {
1505         struct ieee80211_scan_req sr;
1506
1507         KASSERT(vap->iv_opmode == IEEE80211_M_IBSS ||
1508             vap->iv_opmode == IEEE80211_M_AHDEMO,
1509             ("expected opmode IBSS or AHDEMO not %s",
1510             ieee80211_opmode_name[vap->iv_opmode]));
1511
1512         if (ssid_len == 0)
1513                 return EINVAL;
1514
1515         /* NB: IEEE80211_IOC_SSID call missing for ap_scan=2. */
1516         memset(vap->iv_des_ssid[0].ssid, 0, IEEE80211_NWID_LEN);
1517         vap->iv_des_ssid[0].len = ssid_len;
1518         memcpy(vap->iv_des_ssid[0].ssid, ssid, ssid_len);
1519         vap->iv_des_nssid = 1;
1520
1521         sr.sr_flags = IEEE80211_IOC_SCAN_ACTIVE | IEEE80211_IOC_SCAN_ONCE;
1522         sr.sr_duration = IEEE80211_IOC_SCAN_FOREVER;
1523         memcpy(sr.sr_ssid[0].ssid, ssid, ssid_len);
1524         sr.sr_ssid[0].len = ssid_len;
1525         sr.sr_nssid = 1;
1526
1527         return ieee80211_scanreq(vap, &sr);
1528 }
1529
1530 static __noinline int
1531 ieee80211_ioctl_setmlme(struct ieee80211vap *vap, struct ieee80211req *ireq)
1532 {
1533         struct ieee80211req_mlme mlme;
1534         int error;
1535
1536         if (ireq->i_len != sizeof(mlme))
1537                 return EINVAL;
1538         error = copyin(ireq->i_data, &mlme, sizeof(mlme));
1539         if (error)
1540                 return error;
1541         if  (vap->iv_opmode == IEEE80211_M_STA &&
1542             mlme.im_op == IEEE80211_MLME_ASSOC)
1543                 return setmlme_assoc_sta(vap, mlme.im_macaddr,
1544                     vap->iv_des_ssid[0].len, vap->iv_des_ssid[0].ssid);
1545         else if (mlme.im_op == IEEE80211_MLME_ASSOC)
1546                 return setmlme_assoc_adhoc(vap, mlme.im_macaddr,
1547                     mlme.im_ssid_len, mlme.im_ssid);
1548         else
1549                 return setmlme_common(vap, mlme.im_op,
1550                     mlme.im_macaddr, mlme.im_reason);
1551 }
1552
1553 static __noinline int
1554 ieee80211_ioctl_macmac(struct ieee80211vap *vap, struct ieee80211req *ireq)
1555 {
1556         uint8_t mac[IEEE80211_ADDR_LEN];
1557         const struct ieee80211_aclator *acl = vap->iv_acl;
1558         int error;
1559
1560         if (ireq->i_len != sizeof(mac))
1561                 return EINVAL;
1562         error = copyin(ireq->i_data, mac, ireq->i_len);
1563         if (error)
1564                 return error;
1565         if (acl == NULL) {
1566                 acl = ieee80211_aclator_get("mac");
1567                 if (acl == NULL || !acl->iac_attach(vap))
1568                         return EINVAL;
1569                 vap->iv_acl = acl;
1570         }
1571         if (ireq->i_type == IEEE80211_IOC_ADDMAC)
1572                 acl->iac_add(vap, mac);
1573         else
1574                 acl->iac_remove(vap, mac);
1575         return 0;
1576 }
1577
1578 static __noinline int
1579 ieee80211_ioctl_setmaccmd(struct ieee80211vap *vap, struct ieee80211req *ireq)
1580 {
1581         const struct ieee80211_aclator *acl = vap->iv_acl;
1582
1583         switch (ireq->i_val) {
1584         case IEEE80211_MACCMD_POLICY_OPEN:
1585         case IEEE80211_MACCMD_POLICY_ALLOW:
1586         case IEEE80211_MACCMD_POLICY_DENY:
1587         case IEEE80211_MACCMD_POLICY_RADIUS:
1588                 if (acl == NULL) {
1589                         acl = ieee80211_aclator_get("mac");
1590                         if (acl == NULL || !acl->iac_attach(vap))
1591                                 return EINVAL;
1592                         vap->iv_acl = acl;
1593                 }
1594                 acl->iac_setpolicy(vap, ireq->i_val);
1595                 break;
1596         case IEEE80211_MACCMD_FLUSH:
1597                 if (acl != NULL)
1598                         acl->iac_flush(vap);
1599                 /* NB: silently ignore when not in use */
1600                 break;
1601         case IEEE80211_MACCMD_DETACH:
1602                 if (acl != NULL) {
1603                         vap->iv_acl = NULL;
1604                         acl->iac_detach(vap);
1605                 }
1606                 break;
1607         default:
1608                 if (acl == NULL)
1609                         return EINVAL;
1610                 else
1611                         return acl->iac_setioctl(vap, ireq);
1612         }
1613         return 0;
1614 }
1615
1616 static __noinline int
1617 ieee80211_ioctl_setchanlist(struct ieee80211vap *vap, struct ieee80211req *ireq)
1618 {
1619         struct ieee80211com *ic = vap->iv_ic;
1620         uint8_t *chanlist, *list;
1621         int i, nchan, maxchan, error;
1622
1623         if (ireq->i_len > sizeof(ic->ic_chan_active))
1624                 ireq->i_len = sizeof(ic->ic_chan_active);
1625         list = malloc(ireq->i_len + IEEE80211_CHAN_BYTES, M_TEMP,
1626             M_NOWAIT | M_ZERO);
1627         if (list == NULL)
1628                 return ENOMEM;
1629         error = copyin(ireq->i_data, list, ireq->i_len);
1630         if (error)
1631                 return error;
1632         nchan = 0;
1633         chanlist = list + ireq->i_len;          /* NB: zero'd already */
1634         maxchan = ireq->i_len * NBBY;
1635         for (i = 0; i < ic->ic_nchans; i++) {
1636                 const struct ieee80211_channel *c = &ic->ic_channels[i];
1637                 /*
1638                  * Calculate the intersection of the user list and the
1639                  * available channels so users can do things like specify
1640                  * 1-255 to get all available channels.
1641                  */
1642                 if (c->ic_ieee < maxchan && isset(list, c->ic_ieee)) {
1643                         setbit(chanlist, c->ic_ieee);
1644                         nchan++;
1645                 }
1646         }
1647         if (nchan == 0)
1648                 return EINVAL;
1649         if (ic->ic_bsschan != IEEE80211_CHAN_ANYC &&    /* XXX */
1650             isclr(chanlist, ic->ic_bsschan->ic_ieee))
1651                 ic->ic_bsschan = IEEE80211_CHAN_ANYC;
1652         memcpy(ic->ic_chan_active, chanlist, IEEE80211_CHAN_BYTES);
1653         ieee80211_scan_flush(vap);
1654         free(list, M_TEMP);
1655         return ENETRESET;
1656 }
1657
1658 static __noinline int
1659 ieee80211_ioctl_setstastats(struct ieee80211vap *vap, struct ieee80211req *ireq)
1660 {
1661         struct ieee80211_node *ni;
1662         uint8_t macaddr[IEEE80211_ADDR_LEN];
1663         int error;
1664
1665         /*
1666          * NB: we could copyin ieee80211req_sta_stats so apps
1667          *     could make selective changes but that's overkill;
1668          *     just clear all stats for now.
1669          */
1670         if (ireq->i_len < IEEE80211_ADDR_LEN)
1671                 return EINVAL;
1672         error = copyin(ireq->i_data, macaddr, IEEE80211_ADDR_LEN);
1673         if (error != 0)
1674                 return error;
1675         ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap, macaddr);
1676         if (ni == NULL)
1677                 return ENOENT;
1678         /* XXX require ni_vap == vap? */
1679         memset(&ni->ni_stats, 0, sizeof(ni->ni_stats));
1680         ieee80211_free_node(ni);
1681         return 0;
1682 }
1683
1684 static __noinline int
1685 ieee80211_ioctl_setstatxpow(struct ieee80211vap *vap, struct ieee80211req *ireq)
1686 {
1687         struct ieee80211_node *ni;
1688         struct ieee80211req_sta_txpow txpow;
1689         int error;
1690
1691         if (ireq->i_len != sizeof(txpow))
1692                 return EINVAL;
1693         error = copyin(ireq->i_data, &txpow, sizeof(txpow));
1694         if (error != 0)
1695                 return error;
1696         ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap, txpow.it_macaddr);
1697         if (ni == NULL)
1698                 return ENOENT;
1699         ni->ni_txpower = txpow.it_txpow;
1700         ieee80211_free_node(ni);
1701         return error;
1702 }
1703
1704 static __noinline int
1705 ieee80211_ioctl_setwmeparam(struct ieee80211vap *vap, struct ieee80211req *ireq)
1706 {
1707         struct ieee80211com *ic = vap->iv_ic;
1708         struct ieee80211_wme_state *wme = &ic->ic_wme;
1709         struct wmeParams *wmep, *chanp;
1710         int isbss, ac;
1711
1712         if ((ic->ic_caps & IEEE80211_C_WME) == 0)
1713                 return EOPNOTSUPP;
1714
1715         isbss = (ireq->i_len & IEEE80211_WMEPARAM_BSS);
1716         ac = (ireq->i_len & IEEE80211_WMEPARAM_VAL);
1717         if (ac >= WME_NUM_AC)
1718                 ac = WME_AC_BE;
1719         if (isbss) {
1720                 chanp = &wme->wme_bssChanParams.cap_wmeParams[ac];
1721                 wmep = &wme->wme_wmeBssChanParams.cap_wmeParams[ac];
1722         } else {
1723                 chanp = &wme->wme_chanParams.cap_wmeParams[ac];
1724                 wmep = &wme->wme_wmeChanParams.cap_wmeParams[ac];
1725         }
1726         switch (ireq->i_type) {
1727         case IEEE80211_IOC_WME_CWMIN:           /* WME: CWmin */
1728                 if (isbss) {
1729                         wmep->wmep_logcwmin = ireq->i_val;
1730                         if ((wme->wme_flags & WME_F_AGGRMODE) == 0)
1731                                 chanp->wmep_logcwmin = ireq->i_val;
1732                 } else {
1733                         wmep->wmep_logcwmin = chanp->wmep_logcwmin =
1734                                 ireq->i_val;
1735                 }
1736                 break;
1737         case IEEE80211_IOC_WME_CWMAX:           /* WME: CWmax */
1738                 if (isbss) {
1739                         wmep->wmep_logcwmax = ireq->i_val;
1740                         if ((wme->wme_flags & WME_F_AGGRMODE) == 0)
1741                                 chanp->wmep_logcwmax = ireq->i_val;
1742                 } else {
1743                         wmep->wmep_logcwmax = chanp->wmep_logcwmax =
1744                                 ireq->i_val;
1745                 }
1746                 break;
1747         case IEEE80211_IOC_WME_AIFS:            /* WME: AIFS */
1748                 if (isbss) {
1749                         wmep->wmep_aifsn = ireq->i_val;
1750                         if ((wme->wme_flags & WME_F_AGGRMODE) == 0)
1751                                 chanp->wmep_aifsn = ireq->i_val;
1752                 } else {
1753                         wmep->wmep_aifsn = chanp->wmep_aifsn = ireq->i_val;
1754                 }
1755                 break;
1756         case IEEE80211_IOC_WME_TXOPLIMIT:       /* WME: txops limit */
1757                 if (isbss) {
1758                         wmep->wmep_txopLimit = ireq->i_val;
1759                         if ((wme->wme_flags & WME_F_AGGRMODE) == 0)
1760                                 chanp->wmep_txopLimit = ireq->i_val;
1761                 } else {
1762                         wmep->wmep_txopLimit = chanp->wmep_txopLimit =
1763                                 ireq->i_val;
1764                 }
1765                 break;
1766         case IEEE80211_IOC_WME_ACM:             /* WME: ACM (bss only) */
1767                 wmep->wmep_acm = ireq->i_val;
1768                 if ((wme->wme_flags & WME_F_AGGRMODE) == 0)
1769                         chanp->wmep_acm = ireq->i_val;
1770                 break;
1771         case IEEE80211_IOC_WME_ACKPOLICY:       /* WME: ACK policy (!bss only)*/
1772                 wmep->wmep_noackPolicy = chanp->wmep_noackPolicy =
1773                         (ireq->i_val) == 0;
1774                 break;
1775         }
1776         ieee80211_wme_updateparams(vap);
1777         return 0;
1778 }
1779
1780 static int
1781 find11gchannel(struct ieee80211com *ic, int start, int freq)
1782 {
1783         const struct ieee80211_channel *c;
1784         int i;
1785
1786         for (i = start+1; i < ic->ic_nchans; i++) {
1787                 c = &ic->ic_channels[i];
1788                 if (c->ic_freq == freq && IEEE80211_IS_CHAN_ANYG(c))
1789                         return 1;
1790         }
1791         /* NB: should not be needed but in case things are mis-sorted */
1792         for (i = 0; i < start; i++) {
1793                 c = &ic->ic_channels[i];
1794                 if (c->ic_freq == freq && IEEE80211_IS_CHAN_ANYG(c))
1795                         return 1;
1796         }
1797         return 0;
1798 }
1799
1800 static struct ieee80211_channel *
1801 findchannel(struct ieee80211com *ic, int ieee, int mode)
1802 {
1803         static const u_int chanflags[IEEE80211_MODE_MAX] = {
1804             [IEEE80211_MODE_AUTO]       = 0,
1805             [IEEE80211_MODE_11A]        = IEEE80211_CHAN_A,
1806             [IEEE80211_MODE_11B]        = IEEE80211_CHAN_B,
1807             [IEEE80211_MODE_11G]        = IEEE80211_CHAN_G,
1808             [IEEE80211_MODE_FH]         = IEEE80211_CHAN_FHSS,
1809             [IEEE80211_MODE_TURBO_A]    = IEEE80211_CHAN_108A,
1810             [IEEE80211_MODE_TURBO_G]    = IEEE80211_CHAN_108G,
1811             [IEEE80211_MODE_STURBO_A]   = IEEE80211_CHAN_STURBO,
1812             [IEEE80211_MODE_HALF]       = IEEE80211_CHAN_HALF,
1813             [IEEE80211_MODE_QUARTER]    = IEEE80211_CHAN_QUARTER,
1814             /* NB: handled specially below */
1815             [IEEE80211_MODE_11NA]       = IEEE80211_CHAN_A,
1816             [IEEE80211_MODE_11NG]       = IEEE80211_CHAN_G,
1817         };
1818         u_int modeflags;
1819         int i;
1820
1821         modeflags = chanflags[mode];
1822         for (i = 0; i < ic->ic_nchans; i++) {
1823                 struct ieee80211_channel *c = &ic->ic_channels[i];
1824
1825                 if (c->ic_ieee != ieee)
1826                         continue;
1827                 if (mode == IEEE80211_MODE_AUTO) {
1828                         /* ignore turbo channels for autoselect */
1829                         if (IEEE80211_IS_CHAN_TURBO(c))
1830                                 continue;
1831                         /*
1832                          * XXX special-case 11b/g channels so we
1833                          *     always select the g channel if both
1834                          *     are present.
1835                          * XXX prefer HT to non-HT?
1836                          */
1837                         if (!IEEE80211_IS_CHAN_B(c) ||
1838                             !find11gchannel(ic, i, c->ic_freq))
1839                                 return c;
1840                 } else {
1841                         /* must check HT specially */
1842                         if ((mode == IEEE80211_MODE_11NA ||
1843                             mode == IEEE80211_MODE_11NG) &&
1844                             !IEEE80211_IS_CHAN_HT(c))
1845                                 continue;
1846                         if ((c->ic_flags & modeflags) == modeflags)
1847                                 return c;
1848                 }
1849         }
1850         return NULL;
1851 }
1852
1853 /*
1854  * Check the specified against any desired mode (aka netband).
1855  * This is only used (presently) when operating in hostap mode
1856  * to enforce consistency.
1857  */
1858 static int
1859 check_mode_consistency(const struct ieee80211_channel *c, int mode)
1860 {
1861         KASSERT(c != IEEE80211_CHAN_ANYC, ("oops, no channel"));
1862
1863         switch (mode) {
1864         case IEEE80211_MODE_11B:
1865                 return (IEEE80211_IS_CHAN_B(c));
1866         case IEEE80211_MODE_11G:
1867                 return (IEEE80211_IS_CHAN_ANYG(c) && !IEEE80211_IS_CHAN_HT(c));
1868         case IEEE80211_MODE_11A:
1869                 return (IEEE80211_IS_CHAN_A(c) && !IEEE80211_IS_CHAN_HT(c));
1870         case IEEE80211_MODE_STURBO_A:
1871                 return (IEEE80211_IS_CHAN_STURBO(c));
1872         case IEEE80211_MODE_11NA:
1873                 return (IEEE80211_IS_CHAN_HTA(c));
1874         case IEEE80211_MODE_11NG:
1875                 return (IEEE80211_IS_CHAN_HTG(c));
1876         }
1877         return 1;
1878
1879 }
1880
1881 /*
1882  * Common code to set the current channel.  If the device
1883  * is up and running this may result in an immediate channel
1884  * change or a kick of the state machine.
1885  */
1886 static int
1887 setcurchan(struct ieee80211vap *vap, struct ieee80211_channel *c)
1888 {
1889         struct ieee80211com *ic = vap->iv_ic;
1890         int error;
1891
1892         if (c != IEEE80211_CHAN_ANYC) {
1893                 if (IEEE80211_IS_CHAN_RADAR(c))
1894                         return EBUSY;   /* XXX better code? */
1895                 if (vap->iv_opmode == IEEE80211_M_HOSTAP) {
1896                         if (IEEE80211_IS_CHAN_NOHOSTAP(c))
1897                                 return EINVAL;
1898                         if (!check_mode_consistency(c, vap->iv_des_mode))
1899                                 return EINVAL;
1900                 } else if (vap->iv_opmode == IEEE80211_M_IBSS) {
1901                         if (IEEE80211_IS_CHAN_NOADHOC(c))
1902                                 return EINVAL;
1903                 }
1904                 if (vap->iv_state == IEEE80211_S_RUN &&
1905                     vap->iv_bss->ni_chan == c)
1906                         return 0;       /* NB: nothing to do */
1907         }
1908         vap->iv_des_chan = c;
1909
1910         error = 0;
1911         if (vap->iv_opmode == IEEE80211_M_MONITOR &&
1912             vap->iv_des_chan != IEEE80211_CHAN_ANYC) {
1913                 /*
1914                  * Monitor mode can switch directly.
1915                  */
1916                 if (IFNET_IS_UP_RUNNING(vap->iv_ifp)) {
1917                         /* XXX need state machine for other vap's to follow */
1918                         ieee80211_setcurchan(ic, vap->iv_des_chan);
1919                         vap->iv_bss->ni_chan = ic->ic_curchan;
1920                 } else
1921                         ic->ic_curchan = vap->iv_des_chan;
1922                         ic->ic_rt = ieee80211_get_ratetable(ic->ic_curchan);
1923         } else {
1924                 /*
1925                  * Need to go through the state machine in case we
1926                  * need to reassociate or the like.  The state machine
1927                  * will pickup the desired channel and avoid scanning.
1928                  */
1929                 if (IS_UP_AUTO(vap))
1930                         ieee80211_new_state(vap, IEEE80211_S_SCAN, 0);
1931                 else if (vap->iv_des_chan != IEEE80211_CHAN_ANYC) {
1932                         /*
1933                          * When not up+running and a real channel has
1934                          * been specified fix the current channel so
1935                          * there is immediate feedback; e.g. via ifconfig.
1936                          */
1937                         ic->ic_curchan = vap->iv_des_chan;
1938                         ic->ic_rt = ieee80211_get_ratetable(ic->ic_curchan);
1939                 }
1940         }
1941         return error;
1942 }
1943
1944 /*
1945  * Old api for setting the current channel; this is
1946  * deprecated because channel numbers are ambiguous.
1947  */
1948 static __noinline int
1949 ieee80211_ioctl_setchannel(struct ieee80211vap *vap,
1950         const struct ieee80211req *ireq)
1951 {
1952         struct ieee80211com *ic = vap->iv_ic;
1953         struct ieee80211_channel *c;
1954
1955         /* XXX 0xffff overflows 16-bit signed */
1956         if (ireq->i_val == 0 ||
1957             ireq->i_val == (int16_t) IEEE80211_CHAN_ANY) {
1958                 c = IEEE80211_CHAN_ANYC;
1959         } else {
1960                 struct ieee80211_channel *c2;
1961
1962                 c = findchannel(ic, ireq->i_val, vap->iv_des_mode);
1963                 if (c == NULL) {
1964                         c = findchannel(ic, ireq->i_val,
1965                                 IEEE80211_MODE_AUTO);
1966                         if (c == NULL)
1967                                 return EINVAL;
1968                 }
1969                 /*
1970                  * Fine tune channel selection based on desired mode:
1971                  *   if 11b is requested, find the 11b version of any
1972                  *      11g channel returned,
1973                  *   if static turbo, find the turbo version of any
1974                  *      11a channel return,
1975                  *   if 11na is requested, find the ht version of any
1976                  *      11a channel returned,
1977                  *   if 11ng is requested, find the ht version of any
1978                  *      11g channel returned,
1979                  *   otherwise we should be ok with what we've got.
1980                  */
1981                 switch (vap->iv_des_mode) {
1982                 case IEEE80211_MODE_11B:
1983                         if (IEEE80211_IS_CHAN_ANYG(c)) {
1984                                 c2 = findchannel(ic, ireq->i_val,
1985                                         IEEE80211_MODE_11B);
1986                                 /* NB: should not happen, =>'s 11g w/o 11b */
1987                                 if (c2 != NULL)
1988                                         c = c2;
1989                         }
1990                         break;
1991                 case IEEE80211_MODE_TURBO_A:
1992                         if (IEEE80211_IS_CHAN_A(c)) {
1993                                 c2 = findchannel(ic, ireq->i_val,
1994                                         IEEE80211_MODE_TURBO_A);
1995                                 if (c2 != NULL)
1996                                         c = c2;
1997                         }
1998                         break;
1999                 case IEEE80211_MODE_11NA:
2000                         if (IEEE80211_IS_CHAN_A(c)) {
2001                                 c2 = findchannel(ic, ireq->i_val,
2002                                         IEEE80211_MODE_11NA);
2003                                 if (c2 != NULL)
2004                                         c = c2;
2005                         }
2006                         break;
2007                 case IEEE80211_MODE_11NG:
2008                         if (IEEE80211_IS_CHAN_ANYG(c)) {
2009                                 c2 = findchannel(ic, ireq->i_val,
2010                                         IEEE80211_MODE_11NG);
2011                                 if (c2 != NULL)
2012                                         c = c2;
2013                         }
2014                         break;
2015                 default:                /* NB: no static turboG */
2016                         break;
2017                 }
2018         }
2019         return setcurchan(vap, c);
2020 }
2021
2022 /*
2023  * New/current api for setting the current channel; a complete
2024  * channel description is provide so there is no ambiguity in
2025  * identifying the channel.
2026  */
2027 static __noinline int
2028 ieee80211_ioctl_setcurchan(struct ieee80211vap *vap,
2029         const struct ieee80211req *ireq)
2030 {
2031         struct ieee80211com *ic = vap->iv_ic;
2032         struct ieee80211_channel chan, *c;
2033         int error;
2034
2035         if (ireq->i_len != sizeof(chan))
2036                 return EINVAL;
2037         error = copyin(ireq->i_data, &chan, sizeof(chan));
2038         if (error != 0)
2039                 return error;
2040         /* XXX 0xffff overflows 16-bit signed */
2041         if (chan.ic_freq == 0 || chan.ic_freq == IEEE80211_CHAN_ANY) {
2042                 c = IEEE80211_CHAN_ANYC;
2043         } else {
2044                 c = ieee80211_find_channel(ic, chan.ic_freq, chan.ic_flags);
2045                 if (c == NULL)
2046                         return EINVAL;
2047         }
2048         return setcurchan(vap, c);
2049 }
2050
2051 static __noinline int
2052 ieee80211_ioctl_setregdomain(struct ieee80211vap *vap,
2053         const struct ieee80211req *ireq)
2054 {
2055         struct ieee80211_regdomain_req *reg;
2056         int nchans, error;
2057
2058         nchans = 1 + ((ireq->i_len - sizeof(struct ieee80211_regdomain_req)) /
2059             sizeof(struct ieee80211_channel));
2060         if (!(1 <= nchans && nchans <= IEEE80211_CHAN_MAX)) {
2061                 IEEE80211_DPRINTF(vap, IEEE80211_MSG_IOCTL,
2062                     "%s: bad # chans, i_len %d nchans %d\n", __func__,
2063                     ireq->i_len, nchans);
2064                 return EINVAL;
2065         }
2066         reg = (struct ieee80211_regdomain_req *)
2067             malloc(IEEE80211_REGDOMAIN_SIZE(nchans), M_TEMP, M_NOWAIT);
2068         if (reg == NULL) {
2069                 IEEE80211_DPRINTF(vap, IEEE80211_MSG_IOCTL,
2070                     "%s: no memory, nchans %d\n", __func__, nchans);
2071                 return ENOMEM;
2072         }
2073         error = copyin(ireq->i_data, reg, IEEE80211_REGDOMAIN_SIZE(nchans));
2074         if (error == 0) {
2075                 /* NB: validate inline channel count against storage size */
2076                 if (reg->chaninfo.ic_nchans != nchans) {
2077                         IEEE80211_DPRINTF(vap, IEEE80211_MSG_IOCTL,
2078                             "%s: chan cnt mismatch, %d != %d\n", __func__,
2079                                 reg->chaninfo.ic_nchans, nchans);
2080                         error = EINVAL;
2081                 } else
2082                         error = ieee80211_setregdomain(vap, reg);
2083         }
2084         free(reg, M_TEMP);
2085
2086         return (error == 0 ? ENETRESET : error);
2087 }
2088
2089 static int
2090 ieee80211_ioctl_setroam(struct ieee80211vap *vap,
2091         const struct ieee80211req *ireq)
2092 {
2093         if (ireq->i_len != sizeof(vap->iv_roamparms))
2094                 return EINVAL;
2095         /* XXX validate params */
2096         /* XXX? ENETRESET to push to device? */
2097         return copyin(ireq->i_data, vap->iv_roamparms,
2098             sizeof(vap->iv_roamparms));
2099 }
2100
2101 static int
2102 checkrate(const struct ieee80211_rateset *rs, int rate)
2103 {
2104         int i;
2105
2106         if (rate == IEEE80211_FIXED_RATE_NONE)
2107                 return 1;
2108         for (i = 0; i < rs->rs_nrates; i++)
2109                 if ((rs->rs_rates[i] & IEEE80211_RATE_VAL) == rate)
2110                         return 1;
2111         return 0;
2112 }
2113
2114 static int
2115 checkmcs(int mcs)
2116 {
2117         if (mcs == IEEE80211_FIXED_RATE_NONE)
2118                 return 1;
2119         if ((mcs & IEEE80211_RATE_MCS) == 0)    /* MCS always have 0x80 set */
2120                 return 0;
2121         return (mcs & 0x7f) <= 15;      /* XXX could search ht rate set */
2122 }
2123
2124 static __noinline int
2125 ieee80211_ioctl_settxparams(struct ieee80211vap *vap,
2126         const struct ieee80211req *ireq)
2127 {
2128         struct ieee80211com *ic = vap->iv_ic;
2129         struct ieee80211_txparams_req parms;    /* XXX stack use? */
2130         struct ieee80211_txparam *src, *dst;
2131         const struct ieee80211_rateset *rs;
2132         int error, mode, changed, is11n, nmodes;
2133
2134         /* NB: accept short requests for backwards compat */
2135         if (ireq->i_len > sizeof(parms))
2136                 return EINVAL;
2137         error = copyin(ireq->i_data, &parms, ireq->i_len);
2138         if (error != 0)
2139                 return error;
2140         nmodes = ireq->i_len / sizeof(struct ieee80211_txparam);
2141         changed = 0;
2142         /* validate parameters and check if anything changed */
2143         for (mode = IEEE80211_MODE_11A; mode < nmodes; mode++) {
2144                 if (isclr(ic->ic_modecaps, mode))
2145                         continue;
2146                 src = &parms.params[mode];
2147                 dst = &vap->iv_txparms[mode];
2148                 rs = &ic->ic_sup_rates[mode];   /* NB: 11n maps to legacy */
2149                 is11n = (mode == IEEE80211_MODE_11NA ||
2150                          mode == IEEE80211_MODE_11NG);
2151                 if (src->ucastrate != dst->ucastrate) {
2152                         if (!checkrate(rs, src->ucastrate) &&
2153                             (!is11n || !checkmcs(src->ucastrate)))
2154                                 return EINVAL;
2155                         changed++;
2156                 }
2157                 if (src->mcastrate != dst->mcastrate) {
2158                         if (!checkrate(rs, src->mcastrate) &&
2159                             (!is11n || !checkmcs(src->mcastrate)))
2160                                 return EINVAL;
2161                         changed++;
2162                 }
2163                 if (src->mgmtrate != dst->mgmtrate) {
2164                         if (!checkrate(rs, src->mgmtrate) &&
2165                             (!is11n || !checkmcs(src->mgmtrate)))
2166                                 return EINVAL;
2167                         changed++;
2168                 }
2169                 if (src->maxretry != dst->maxretry)     /* NB: no bounds */
2170                         changed++;
2171         }
2172         if (changed) {
2173                 /*
2174                  * Copy new parameters in place and notify the
2175                  * driver so it can push state to the device.
2176                  */
2177                 for (mode = IEEE80211_MODE_11A; mode < nmodes; mode++) {
2178                         if (isset(ic->ic_modecaps, mode))
2179                                 vap->iv_txparms[mode] = parms.params[mode];
2180                 }
2181                 /* XXX could be more intelligent,
2182                    e.g. don't reset if setting not being used */
2183                 return ENETRESET;
2184         }
2185         return 0;
2186 }
2187
2188 /*
2189  * Application Information Element support.
2190  */
2191 static int
2192 setappie(struct ieee80211_appie **aie, const struct ieee80211req *ireq)
2193 {
2194         struct ieee80211_appie *app = *aie;
2195         struct ieee80211_appie *napp;
2196         int error;
2197
2198         if (ireq->i_len == 0) {         /* delete any existing ie */
2199                 if (app != NULL) {
2200                         *aie = NULL;    /* XXX racey */
2201                         free(app, M_80211_NODE_IE);
2202                 }
2203                 return 0;
2204         }
2205         if (!(2 <= ireq->i_len && ireq->i_len <= IEEE80211_MAX_APPIE))
2206                 return EINVAL;
2207         /*
2208          * Allocate a new appie structure and copy in the user data.
2209          * When done swap in the new structure.  Note that we do not
2210          * guard against users holding a ref to the old structure;
2211          * this must be handled outside this code.
2212          *
2213          * XXX bad bad bad
2214          */
2215         napp = (struct ieee80211_appie *) malloc(
2216             sizeof(struct ieee80211_appie) + ireq->i_len, M_80211_NODE_IE, M_NOWAIT);
2217         if (napp == NULL)
2218                 return ENOMEM;
2219         /* XXX holding ic lock */
2220         error = copyin(ireq->i_data, napp->ie_data, ireq->i_len);
2221         if (error) {
2222                 free(napp, M_80211_NODE_IE);
2223                 return error;
2224         }
2225         napp->ie_len = ireq->i_len;
2226         *aie = napp;
2227         if (app != NULL)
2228                 free(app, M_80211_NODE_IE);
2229         return 0;
2230 }
2231
2232 static void
2233 setwparsnie(struct ieee80211vap *vap, uint8_t *ie, int space)
2234 {
2235         /* validate data is present as best we can */
2236         if (space == 0 || 2+ie[1] > space)
2237                 return;
2238         if (ie[0] == IEEE80211_ELEMID_VENDOR)
2239                 vap->iv_wpa_ie = ie;
2240         else if (ie[0] == IEEE80211_ELEMID_RSN)
2241                 vap->iv_rsn_ie = ie;
2242 }
2243
2244 static __noinline int
2245 ieee80211_ioctl_setappie_locked(struct ieee80211vap *vap,
2246         const struct ieee80211req *ireq, int fc0)
2247 {
2248         int error;
2249
2250         IEEE80211_LOCK_ASSERT(vap->iv_ic);
2251
2252         switch (fc0 & IEEE80211_FC0_SUBTYPE_MASK) {
2253         case IEEE80211_FC0_SUBTYPE_BEACON:
2254                 if (vap->iv_opmode != IEEE80211_M_HOSTAP &&
2255                     vap->iv_opmode != IEEE80211_M_IBSS) {
2256                         error = EINVAL;
2257                         break;
2258                 }
2259                 error = setappie(&vap->iv_appie_beacon, ireq);
2260                 if (error == 0)
2261                         ieee80211_beacon_notify(vap, IEEE80211_BEACON_APPIE);
2262                 break;
2263         case IEEE80211_FC0_SUBTYPE_PROBE_RESP:
2264                 error = setappie(&vap->iv_appie_proberesp, ireq);
2265                 break;
2266         case IEEE80211_FC0_SUBTYPE_ASSOC_RESP:
2267                 if (vap->iv_opmode == IEEE80211_M_HOSTAP)
2268                         error = setappie(&vap->iv_appie_assocresp, ireq);
2269                 else
2270                         error = EINVAL;
2271                 break;
2272         case IEEE80211_FC0_SUBTYPE_PROBE_REQ:
2273                 error = setappie(&vap->iv_appie_probereq, ireq);
2274                 break;
2275         case IEEE80211_FC0_SUBTYPE_ASSOC_REQ:
2276                 if (vap->iv_opmode == IEEE80211_M_STA)
2277                         error = setappie(&vap->iv_appie_assocreq, ireq);
2278                 else
2279                         error = EINVAL;
2280                 break;
2281         case (IEEE80211_APPIE_WPA & IEEE80211_FC0_SUBTYPE_MASK):
2282                 error = setappie(&vap->iv_appie_wpa, ireq);
2283                 if (error == 0) {
2284                         /*
2285                          * Must split single blob of data into separate
2286                          * WPA and RSN ie's because they go in different
2287                          * locations in the mgt frames.
2288                          * XXX use IEEE80211_IOC_WPA2 so user code does split
2289                          */
2290                         vap->iv_wpa_ie = NULL;
2291                         vap->iv_rsn_ie = NULL;
2292                         if (vap->iv_appie_wpa != NULL) {
2293                                 struct ieee80211_appie *appie =
2294                                     vap->iv_appie_wpa;
2295                                 uint8_t *data = appie->ie_data;
2296
2297                                 /* XXX ie length validate is painful, cheat */
2298                                 setwparsnie(vap, data, appie->ie_len);
2299                                 setwparsnie(vap, data + 2 + data[1],
2300                                     appie->ie_len - (2 + data[1]));
2301                         }
2302                         if (vap->iv_opmode == IEEE80211_M_HOSTAP ||
2303                             vap->iv_opmode == IEEE80211_M_IBSS) {
2304                                 /*
2305                                  * Must rebuild beacon frame as the update
2306                                  * mechanism doesn't handle WPA/RSN ie's.
2307                                  * Could extend it but it doesn't normally
2308                                  * change; this is just to deal with hostapd
2309                                  * plumbing the ie after the interface is up.
2310                                  */
2311                                 error = ENETRESET;
2312                         }
2313                 }
2314                 break;
2315         default:
2316                 error = EINVAL;
2317                 break;
2318         }
2319         return error;
2320 }
2321
2322 static __noinline int
2323 ieee80211_ioctl_setappie(struct ieee80211vap *vap,
2324         const struct ieee80211req *ireq)
2325 {
2326         struct ieee80211com *ic = vap->iv_ic;
2327         int error;
2328         uint8_t fc0;
2329
2330         fc0 = ireq->i_val & 0xff;
2331         if ((fc0 & IEEE80211_FC0_TYPE_MASK) != IEEE80211_FC0_TYPE_MGT)
2332                 return EINVAL;
2333         /* NB: could check iv_opmode and reject but hardly worth the effort */
2334         IEEE80211_LOCK(ic);
2335         error = ieee80211_ioctl_setappie_locked(vap, ireq, fc0);
2336         IEEE80211_UNLOCK(ic);
2337         return error;
2338 }
2339
2340 static __noinline int
2341 ieee80211_ioctl_chanswitch(struct ieee80211vap *vap, struct ieee80211req *ireq)
2342 {
2343         struct ieee80211com *ic = vap->iv_ic;
2344         struct ieee80211_chanswitch_req csr;
2345         struct ieee80211_channel *c;
2346         int error;
2347
2348         if (ireq->i_len != sizeof(csr))
2349                 return EINVAL;
2350         error = copyin(ireq->i_data, &csr, sizeof(csr));
2351         if (error != 0)
2352                 return error;
2353         /* XXX adhoc mode not supported */
2354         if (vap->iv_opmode != IEEE80211_M_HOSTAP ||
2355             (vap->iv_flags & IEEE80211_F_DOTH) == 0)
2356                 return EOPNOTSUPP;
2357         c = ieee80211_find_channel(ic,
2358             csr.csa_chan.ic_freq, csr.csa_chan.ic_flags);
2359         if (c == NULL)
2360                 return ENOENT;
2361         IEEE80211_LOCK(ic);
2362         if ((ic->ic_flags & IEEE80211_F_CSAPENDING) == 0)
2363                 ieee80211_csa_startswitch(ic, c, csr.csa_mode, csr.csa_count);
2364         else if (csr.csa_count == 0)
2365                 ieee80211_csa_cancelswitch(ic);
2366         else
2367                 error = EBUSY;
2368         IEEE80211_UNLOCK(ic);
2369         return error;
2370 }
2371
2372 static int
2373 ieee80211_scanreq(struct ieee80211vap *vap, struct ieee80211_scan_req *sr)
2374 {
2375 #define IEEE80211_IOC_SCAN_FLAGS \
2376         (IEEE80211_IOC_SCAN_NOPICK | IEEE80211_IOC_SCAN_ACTIVE | \
2377          IEEE80211_IOC_SCAN_PICK1ST | IEEE80211_IOC_SCAN_BGSCAN | \
2378          IEEE80211_IOC_SCAN_ONCE | IEEE80211_IOC_SCAN_NOBCAST | \
2379          IEEE80211_IOC_SCAN_NOJOIN | IEEE80211_IOC_SCAN_FLUSH | \
2380          IEEE80211_IOC_SCAN_CHECK)
2381         struct ieee80211com *ic = vap->iv_ic;
2382         int i;
2383
2384         /* convert duration */
2385         if (sr->sr_duration == IEEE80211_IOC_SCAN_FOREVER)
2386                 sr->sr_duration = IEEE80211_SCAN_FOREVER;
2387         else {
2388                 if (sr->sr_duration < IEEE80211_IOC_SCAN_DURATION_MIN ||
2389                     sr->sr_duration > IEEE80211_IOC_SCAN_DURATION_MAX)
2390                         return EINVAL;
2391                 sr->sr_duration = msecs_to_ticks(sr->sr_duration);
2392                 if (sr->sr_duration < 1)
2393                         sr->sr_duration = 1;
2394         }
2395         /* convert min/max channel dwell */
2396         if (sr->sr_mindwell != 0) {
2397                 sr->sr_mindwell = msecs_to_ticks(sr->sr_mindwell);
2398                 if (sr->sr_mindwell < 1)
2399                         sr->sr_mindwell = 1;
2400         }
2401         if (sr->sr_maxdwell != 0) {
2402                 sr->sr_maxdwell = msecs_to_ticks(sr->sr_maxdwell);
2403                 if (sr->sr_maxdwell < 1)
2404                         sr->sr_maxdwell = 1;
2405         }
2406         /* NB: silently reduce ssid count to what is supported */
2407         if (sr->sr_nssid > IEEE80211_SCAN_MAX_SSID)
2408                 sr->sr_nssid = IEEE80211_SCAN_MAX_SSID;
2409         for (i = 0; i < sr->sr_nssid; i++)
2410                 if (sr->sr_ssid[i].len > IEEE80211_NWID_LEN)
2411                         return EINVAL;
2412         /* cleanse flags just in case, could reject if invalid flags */
2413         sr->sr_flags &= IEEE80211_IOC_SCAN_FLAGS;
2414         /*
2415          * Add an implicit NOPICK if the vap is not marked UP.  This
2416          * allows applications to scan without joining a bss (or picking
2417          * a channel and setting up a bss) and without forcing manual
2418          * roaming mode--you just need to mark the parent device UP.
2419          */
2420         if ((vap->iv_ifp->if_flags & IFF_UP) == 0)
2421                 sr->sr_flags |= IEEE80211_IOC_SCAN_NOPICK;
2422
2423         IEEE80211_DPRINTF(vap, IEEE80211_MSG_SCAN,
2424             "%s: flags 0x%x%s duration 0x%x mindwell %u maxdwell %u nssid %d\n",
2425             __func__, sr->sr_flags,
2426             (vap->iv_ifp->if_flags & IFF_UP) == 0 ? " (!IFF_UP)" : "",
2427             sr->sr_duration, sr->sr_mindwell, sr->sr_maxdwell, sr->sr_nssid);
2428         /*
2429          * If we are in INIT state then the driver has never had a chance
2430          * to setup hardware state to do a scan; we must use the state
2431          * machine to get us up to the SCAN state but once we reach SCAN
2432          * state we then want to use the supplied params.  Stash the
2433          * parameters in the vap and mark IEEE80211_FEXT_SCANREQ; the
2434          * state machines will recognize this and use the stashed params
2435          * to issue the scan request.
2436          *
2437          * Otherwise just invoke the scan machinery directly.
2438          */
2439         IEEE80211_LOCK(ic);
2440         if (vap->iv_state == IEEE80211_S_INIT) {
2441                 /* NB: clobbers previous settings */
2442                 vap->iv_scanreq_flags = sr->sr_flags;
2443                 vap->iv_scanreq_duration = sr->sr_duration;
2444                 vap->iv_scanreq_nssid = sr->sr_nssid;
2445                 for (i = 0; i < sr->sr_nssid; i++) {
2446                         vap->iv_scanreq_ssid[i].len = sr->sr_ssid[i].len;
2447                         memcpy(vap->iv_scanreq_ssid[i].ssid,
2448                             sr->sr_ssid[i].ssid, sr->sr_ssid[i].len);
2449                 }
2450                 vap->iv_flags_ext |= IEEE80211_FEXT_SCANREQ;
2451                 IEEE80211_UNLOCK(ic);
2452                 ieee80211_new_state(vap, IEEE80211_S_SCAN, 0);
2453         } else {
2454                 vap->iv_flags_ext &= ~IEEE80211_FEXT_SCANREQ;
2455                 IEEE80211_UNLOCK(ic);
2456                 /* XXX neeed error return codes */
2457                 if (sr->sr_flags & IEEE80211_IOC_SCAN_CHECK) {
2458                         (void) ieee80211_check_scan(vap, sr->sr_flags,
2459                             sr->sr_duration, sr->sr_mindwell, sr->sr_maxdwell,
2460                             sr->sr_nssid,
2461                             /* NB: cheat, we assume structures are compatible */
2462                             (const struct ieee80211_scan_ssid *) &sr->sr_ssid[0]);
2463                 } else {
2464                         (void) ieee80211_start_scan(vap, sr->sr_flags,
2465                             sr->sr_duration, sr->sr_mindwell, sr->sr_maxdwell,
2466                             sr->sr_nssid,
2467                             /* NB: cheat, we assume structures are compatible */
2468                             (const struct ieee80211_scan_ssid *) &sr->sr_ssid[0]);
2469                 }
2470         }
2471         return 0;
2472 #undef IEEE80211_IOC_SCAN_FLAGS
2473 }
2474
2475 static __noinline int
2476 ieee80211_ioctl_scanreq(struct ieee80211vap *vap, struct ieee80211req *ireq)
2477 {
2478         struct ieee80211com *ic = vap->iv_ic;
2479         struct ieee80211_scan_req sr;           /* XXX off stack? */
2480         int error;
2481
2482         /* NB: parent must be running */
2483         if ((ic->ic_ifp->if_drv_flags & IFF_DRV_RUNNING) == 0)
2484                 return ENXIO;
2485
2486         if (ireq->i_len != sizeof(sr))
2487                 return EINVAL;
2488         error = copyin(ireq->i_data, &sr, sizeof(sr));
2489         if (error != 0)
2490                 return error;
2491         return ieee80211_scanreq(vap, &sr);
2492 }
2493
2494 static __noinline int
2495 ieee80211_ioctl_setstavlan(struct ieee80211vap *vap, struct ieee80211req *ireq)
2496 {
2497         struct ieee80211_node *ni;
2498         struct ieee80211req_sta_vlan vlan;
2499         int error;
2500
2501         if (ireq->i_len != sizeof(vlan))
2502                 return EINVAL;
2503         error = copyin(ireq->i_data, &vlan, sizeof(vlan));
2504         if (error != 0)
2505                 return error;
2506         if (!IEEE80211_ADDR_EQ(vlan.sv_macaddr, zerobssid)) {
2507                 ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap,
2508                     vlan.sv_macaddr);
2509                 if (ni == NULL)
2510                         return ENOENT;
2511         } else
2512                 ni = ieee80211_ref_node(vap->iv_bss);
2513         ni->ni_vlan = vlan.sv_vlan;
2514         ieee80211_free_node(ni);
2515         return error;
2516 }
2517
2518 static int
2519 isvap11g(const struct ieee80211vap *vap)
2520 {
2521         const struct ieee80211_node *bss = vap->iv_bss;
2522         return bss->ni_chan != IEEE80211_CHAN_ANYC &&
2523             IEEE80211_IS_CHAN_ANYG(bss->ni_chan);
2524 }
2525
2526 static int
2527 isvapht(const struct ieee80211vap *vap)
2528 {
2529         const struct ieee80211_node *bss = vap->iv_bss;
2530         return bss->ni_chan != IEEE80211_CHAN_ANYC &&
2531             IEEE80211_IS_CHAN_HT(bss->ni_chan);
2532 }
2533
2534 /*
2535  * Dummy ioctl set handler so the linker set is defined.
2536  */
2537 static int
2538 dummy_ioctl_set(struct ieee80211vap *vap, struct ieee80211req *ireq)
2539 {
2540         return ENOSYS;
2541 }
2542 IEEE80211_IOCTL_SET(dummy, dummy_ioctl_set);
2543
2544 static int
2545 ieee80211_ioctl_setdefault(struct ieee80211vap *vap, struct ieee80211req *ireq)
2546 {
2547         ieee80211_ioctl_setfunc * const *set;
2548         int error;
2549
2550         SET_FOREACH(set, ieee80211_ioctl_setset) {
2551                 error = (*set)(vap, ireq);
2552                 if (error != ENOSYS)
2553                         return error;
2554         }
2555         return EINVAL;
2556 }
2557
2558 static __noinline int
2559 ieee80211_ioctl_set80211(struct ieee80211vap *vap, u_long cmd, struct ieee80211req *ireq)
2560 {
2561         struct ieee80211com *ic = vap->iv_ic;
2562         int error;
2563         const struct ieee80211_authenticator *auth;
2564         uint8_t tmpkey[IEEE80211_KEYBUF_SIZE];
2565         char tmpssid[IEEE80211_NWID_LEN];
2566         uint8_t tmpbssid[IEEE80211_ADDR_LEN];
2567         struct ieee80211_key *k;
2568         u_int kid;
2569         uint32_t flags;
2570
2571         error = 0;
2572         switch (ireq->i_type) {
2573         case IEEE80211_IOC_SSID:
2574                 if (ireq->i_val != 0 ||
2575                     ireq->i_len > IEEE80211_NWID_LEN)
2576                         return EINVAL;
2577                 error = copyin(ireq->i_data, tmpssid, ireq->i_len);
2578                 if (error)
2579                         break;
2580                 memset(vap->iv_des_ssid[0].ssid, 0, IEEE80211_NWID_LEN);
2581                 vap->iv_des_ssid[0].len = ireq->i_len;
2582                 memcpy(vap->iv_des_ssid[0].ssid, tmpssid, ireq->i_len);
2583                 vap->iv_des_nssid = (ireq->i_len > 0);
2584                 error = ENETRESET;
2585                 break;
2586         case IEEE80211_IOC_WEP:
2587                 switch (ireq->i_val) {
2588                 case IEEE80211_WEP_OFF:
2589                         vap->iv_flags &= ~IEEE80211_F_PRIVACY;
2590                         vap->iv_flags &= ~IEEE80211_F_DROPUNENC;
2591                         break;
2592                 case IEEE80211_WEP_ON:
2593                         vap->iv_flags |= IEEE80211_F_PRIVACY;
2594                         vap->iv_flags |= IEEE80211_F_DROPUNENC;
2595                         break;
2596                 case IEEE80211_WEP_MIXED:
2597                         vap->iv_flags |= IEEE80211_F_PRIVACY;
2598                         vap->iv_flags &= ~IEEE80211_F_DROPUNENC;
2599                         break;
2600                 }
2601                 error = ENETRESET;
2602                 break;
2603         case IEEE80211_IOC_WEPKEY:
2604                 kid = (u_int) ireq->i_val;
2605                 if (kid >= IEEE80211_WEP_NKID)
2606                         return EINVAL;
2607                 k = &vap->iv_nw_keys[kid];
2608                 if (ireq->i_len == 0) {
2609                         /* zero-len =>'s delete any existing key */
2610                         (void) ieee80211_crypto_delkey(vap, k);
2611                         break;
2612                 }
2613                 if (ireq->i_len > sizeof(tmpkey))
2614                         return EINVAL;
2615                 memset(tmpkey, 0, sizeof(tmpkey));
2616                 error = copyin(ireq->i_data, tmpkey, ireq->i_len);
2617                 if (error)
2618                         break;
2619                 ieee80211_key_update_begin(vap);
2620                 k->wk_keyix = kid;      /* NB: force fixed key id */
2621                 if (ieee80211_crypto_newkey(vap, IEEE80211_CIPHER_WEP,
2622                     IEEE80211_KEY_XMIT | IEEE80211_KEY_RECV, k)) {
2623                         k->wk_keylen = ireq->i_len;
2624                         memcpy(k->wk_key, tmpkey, sizeof(tmpkey));
2625                         IEEE80211_ADDR_COPY(k->wk_macaddr, vap->iv_myaddr);
2626                         if  (!ieee80211_crypto_setkey(vap, k))
2627                                 error = EINVAL;
2628                 } else
2629                         error = EINVAL;
2630                 ieee80211_key_update_end(vap);
2631                 break;
2632         case IEEE80211_IOC_WEPTXKEY:
2633                 kid = (u_int) ireq->i_val;
2634                 if (kid >= IEEE80211_WEP_NKID &&
2635                     (uint16_t) kid != IEEE80211_KEYIX_NONE)
2636                         return EINVAL;
2637                 vap->iv_def_txkey = kid;
2638                 break;
2639         case IEEE80211_IOC_AUTHMODE:
2640                 switch (ireq->i_val) {
2641                 case IEEE80211_AUTH_WPA:
2642                 case IEEE80211_AUTH_8021X:      /* 802.1x */
2643                 case IEEE80211_AUTH_OPEN:       /* open */
2644                 case IEEE80211_AUTH_SHARED:     /* shared-key */
2645                 case IEEE80211_AUTH_AUTO:       /* auto */
2646                         auth = ieee80211_authenticator_get(ireq->i_val);
2647                         if (auth == NULL)
2648                                 return EINVAL;
2649                         break;
2650                 default:
2651                         return EINVAL;
2652                 }
2653                 switch (ireq->i_val) {
2654                 case IEEE80211_AUTH_WPA:        /* WPA w/ 802.1x */
2655                         vap->iv_flags |= IEEE80211_F_PRIVACY;
2656                         ireq->i_val = IEEE80211_AUTH_8021X;
2657                         break;
2658                 case IEEE80211_AUTH_OPEN:       /* open */
2659                         vap->iv_flags &= ~(IEEE80211_F_WPA|IEEE80211_F_PRIVACY);
2660                         break;
2661                 case IEEE80211_AUTH_SHARED:     /* shared-key */
2662                 case IEEE80211_AUTH_8021X:      /* 802.1x */
2663                         vap->iv_flags &= ~IEEE80211_F_WPA;
2664                         /* both require a key so mark the PRIVACY capability */
2665                         vap->iv_flags |= IEEE80211_F_PRIVACY;
2666                         break;
2667                 case IEEE80211_AUTH_AUTO:       /* auto */
2668                         vap->iv_flags &= ~IEEE80211_F_WPA;
2669                         /* XXX PRIVACY handling? */
2670                         /* XXX what's the right way to do this? */
2671                         break;
2672                 }
2673                 /* NB: authenticator attach/detach happens on state change */
2674                 vap->iv_bss->ni_authmode = ireq->i_val;
2675                 /* XXX mixed/mode/usage? */
2676                 vap->iv_auth = auth;
2677                 error = ENETRESET;
2678                 break;
2679         case IEEE80211_IOC_CHANNEL:
2680                 error = ieee80211_ioctl_setchannel(vap, ireq);
2681                 break;
2682         case IEEE80211_IOC_POWERSAVE:
2683                 switch (ireq->i_val) {
2684                 case IEEE80211_POWERSAVE_OFF:
2685                         if (vap->iv_flags & IEEE80211_F_PMGTON) {
2686                                 ieee80211_syncflag(vap, -IEEE80211_F_PMGTON);
2687                                 error = ERESTART;
2688                         }
2689                         break;
2690                 case IEEE80211_POWERSAVE_ON:
2691                         if ((vap->iv_caps & IEEE80211_C_PMGT) == 0)
2692                                 error = EOPNOTSUPP;
2693                         else if ((vap->iv_flags & IEEE80211_F_PMGTON) == 0) {
2694                                 ieee80211_syncflag(vap, IEEE80211_F_PMGTON);
2695                                 error = ERESTART;
2696                         }
2697                         break;
2698                 default:
2699                         error = EINVAL;
2700                         break;
2701                 }
2702                 break;
2703         case IEEE80211_IOC_POWERSAVESLEEP:
2704                 if (ireq->i_val < 0)
2705                         return EINVAL;
2706                 ic->ic_lintval = ireq->i_val;
2707                 error = ERESTART;
2708                 break;
2709         case IEEE80211_IOC_RTSTHRESHOLD:
2710                 if (!(IEEE80211_RTS_MIN <= ireq->i_val &&
2711                       ireq->i_val <= IEEE80211_RTS_MAX))
2712                         return EINVAL;
2713                 vap->iv_rtsthreshold = ireq->i_val;
2714                 error = ERESTART;
2715                 break;
2716         case IEEE80211_IOC_PROTMODE:
2717                 if (ireq->i_val > IEEE80211_PROT_RTSCTS)
2718                         return EINVAL;
2719                 ic->ic_protmode = ireq->i_val;
2720                 /* NB: if not operating in 11g this can wait */
2721                 if (ic->ic_bsschan != IEEE80211_CHAN_ANYC &&
2722                     IEEE80211_IS_CHAN_ANYG(ic->ic_bsschan))
2723                         error = ERESTART;
2724                 break;
2725         case IEEE80211_IOC_TXPOWER:
2726                 if ((ic->ic_caps & IEEE80211_C_TXPMGT) == 0)
2727                         return EOPNOTSUPP;
2728                 if (!(IEEE80211_TXPOWER_MIN <= ireq->i_val &&
2729                       ireq->i_val <= IEEE80211_TXPOWER_MAX))
2730                         return EINVAL;
2731                 ic->ic_txpowlimit = ireq->i_val;
2732                 error = ERESTART;
2733                 break;
2734         case IEEE80211_IOC_ROAMING:
2735                 if (!(IEEE80211_ROAMING_DEVICE <= ireq->i_val &&
2736                     ireq->i_val <= IEEE80211_ROAMING_MANUAL))
2737                         return EINVAL;
2738                 vap->iv_roaming = ireq->i_val;
2739                 /* XXXX reset? */
2740                 break;
2741         case IEEE80211_IOC_PRIVACY:
2742                 if (ireq->i_val) {
2743                         /* XXX check for key state? */
2744                         vap->iv_flags |= IEEE80211_F_PRIVACY;
2745                 } else
2746                         vap->iv_flags &= ~IEEE80211_F_PRIVACY;
2747                 /* XXX ERESTART? */
2748                 break;
2749         case IEEE80211_IOC_DROPUNENCRYPTED:
2750                 if (ireq->i_val)
2751                         vap->iv_flags |= IEEE80211_F_DROPUNENC;
2752                 else
2753                         vap->iv_flags &= ~IEEE80211_F_DROPUNENC;
2754                 /* XXX ERESTART? */
2755                 break;
2756         case IEEE80211_IOC_WPAKEY:
2757                 error = ieee80211_ioctl_setkey(vap, ireq);
2758                 break;
2759         case IEEE80211_IOC_DELKEY:
2760                 error = ieee80211_ioctl_delkey(vap, ireq);
2761                 break;
2762         case IEEE80211_IOC_MLME:
2763                 error = ieee80211_ioctl_setmlme(vap, ireq);
2764                 break;
2765         case IEEE80211_IOC_COUNTERMEASURES:
2766                 if (ireq->i_val) {
2767                         if ((vap->iv_flags & IEEE80211_F_WPA) == 0)
2768                                 return EOPNOTSUPP;
2769                         vap->iv_flags |= IEEE80211_F_COUNTERM;
2770                 } else
2771                         vap->iv_flags &= ~IEEE80211_F_COUNTERM;
2772                 /* XXX ERESTART? */
2773                 break;
2774         case IEEE80211_IOC_WPA:
2775                 if (ireq->i_val > 3)
2776                         return EINVAL;
2777                 /* XXX verify ciphers available */
2778                 flags = vap->iv_flags & ~IEEE80211_F_WPA;
2779                 switch (ireq->i_val) {
2780                 case 1:
2781                         if (!(vap->iv_caps & IEEE80211_C_WPA1))
2782                                 return EOPNOTSUPP;
2783                         flags |= IEEE80211_F_WPA1;
2784                         break;
2785                 case 2:
2786                         if (!(vap->iv_caps & IEEE80211_C_WPA2))
2787                                 return EOPNOTSUPP;
2788                         flags |= IEEE80211_F_WPA2;
2789                         break;
2790                 case 3:
2791                         if ((vap->iv_caps & IEEE80211_C_WPA) != IEEE80211_C_WPA)
2792                                 return EOPNOTSUPP;
2793                         flags |= IEEE80211_F_WPA1 | IEEE80211_F_WPA2;
2794                         break;
2795                 default:        /*  Can't set any -> error */
2796                         return EOPNOTSUPP;
2797                 }
2798                 vap->iv_flags = flags;
2799                 error = ERESTART;       /* NB: can change beacon frame */
2800                 break;
2801         case IEEE80211_IOC_WME:
2802                 if (ireq->i_val) {
2803                         if ((vap->iv_caps & IEEE80211_C_WME) == 0)
2804                                 return EOPNOTSUPP;
2805                         ieee80211_syncflag(vap, IEEE80211_F_WME);
2806                 } else
2807                         ieee80211_syncflag(vap, -IEEE80211_F_WME);
2808                 error = ERESTART;       /* NB: can change beacon frame */
2809                 break;
2810         case IEEE80211_IOC_HIDESSID:
2811                 if (ireq->i_val)
2812                         vap->iv_flags |= IEEE80211_F_HIDESSID;
2813                 else
2814                         vap->iv_flags &= ~IEEE80211_F_HIDESSID;
2815                 error = ERESTART;               /* XXX ENETRESET? */
2816                 break;
2817         case IEEE80211_IOC_APBRIDGE:
2818                 if (ireq->i_val == 0)
2819                         vap->iv_flags |= IEEE80211_F_NOBRIDGE;
2820                 else
2821                         vap->iv_flags &= ~IEEE80211_F_NOBRIDGE;
2822                 break;
2823         case IEEE80211_IOC_BSSID:
2824                 if (ireq->i_len != sizeof(tmpbssid))
2825                         return EINVAL;
2826                 error = copyin(ireq->i_data, tmpbssid, ireq->i_len);
2827                 if (error)
2828                         break;
2829                 IEEE80211_ADDR_COPY(vap->iv_des_bssid, tmpbssid);
2830                 if (IEEE80211_ADDR_EQ(vap->iv_des_bssid, zerobssid))
2831                         vap->iv_flags &= ~IEEE80211_F_DESBSSID;
2832                 else
2833                         vap->iv_flags |= IEEE80211_F_DESBSSID;
2834                 error = ENETRESET;
2835                 break;
2836         case IEEE80211_IOC_CHANLIST:
2837                 error = ieee80211_ioctl_setchanlist(vap, ireq);
2838                 break;
2839 #define OLD_IEEE80211_IOC_SCAN_REQ      23
2840 #ifdef OLD_IEEE80211_IOC_SCAN_REQ
2841         case OLD_IEEE80211_IOC_SCAN_REQ:
2842                 IEEE80211_DPRINTF(vap, IEEE80211_MSG_SCAN,
2843                         "%s: active scan request\n", __func__);
2844                 /*
2845                  * If we are in INIT state then the driver has never
2846                  * had a chance to setup hardware state to do a scan;
2847                  * use the state machine to get us up the SCAN state.
2848                  * Otherwise just invoke the scan machinery to start
2849                  * a one-time scan.
2850                  */
2851                 if (vap->iv_state == IEEE80211_S_INIT)
2852                         ieee80211_new_state(vap, IEEE80211_S_SCAN, 0);
2853                 else
2854                         (void) ieee80211_start_scan(vap,
2855                                 IEEE80211_SCAN_ACTIVE |
2856                                 IEEE80211_SCAN_NOPICK |
2857                                 IEEE80211_SCAN_ONCE,
2858                                 IEEE80211_SCAN_FOREVER, 0, 0,
2859                                 /* XXX use ioctl params */
2860                                 vap->iv_des_nssid, vap->iv_des_ssid);
2861                 break;
2862 #endif /* OLD_IEEE80211_IOC_SCAN_REQ */
2863         case IEEE80211_IOC_SCAN_REQ:
2864                 error = ieee80211_ioctl_scanreq(vap, ireq);
2865                 break;
2866         case IEEE80211_IOC_SCAN_CANCEL:
2867                 IEEE80211_DPRINTF(vap, IEEE80211_MSG_SCAN,
2868                     "%s: cancel scan\n", __func__);
2869                 ieee80211_cancel_scan(vap);
2870                 break;
2871         case IEEE80211_IOC_HTCONF:
2872                 if (ireq->i_val & 1)
2873                         ieee80211_syncflag_ht(vap, IEEE80211_FHT_HT);
2874                 else
2875                         ieee80211_syncflag_ht(vap, -IEEE80211_FHT_HT);
2876                 if (ireq->i_val & 2)
2877                         ieee80211_syncflag_ht(vap, IEEE80211_FHT_USEHT40);
2878                 else
2879                         ieee80211_syncflag_ht(vap, -IEEE80211_FHT_USEHT40);
2880                 error = ENETRESET;
2881                 break;
2882         case IEEE80211_IOC_ADDMAC:
2883         case IEEE80211_IOC_DELMAC:
2884                 error = ieee80211_ioctl_macmac(vap, ireq);
2885                 break;
2886         case IEEE80211_IOC_MACCMD:
2887                 error = ieee80211_ioctl_setmaccmd(vap, ireq);
2888                 break;
2889         case IEEE80211_IOC_STA_STATS:
2890                 error = ieee80211_ioctl_setstastats(vap, ireq);
2891                 break;
2892         case IEEE80211_IOC_STA_TXPOW:
2893                 error = ieee80211_ioctl_setstatxpow(vap, ireq);
2894                 break;
2895         case IEEE80211_IOC_WME_CWMIN:           /* WME: CWmin */
2896         case IEEE80211_IOC_WME_CWMAX:           /* WME: CWmax */
2897         case IEEE80211_IOC_WME_AIFS:            /* WME: AIFS */
2898         case IEEE80211_IOC_WME_TXOPLIMIT:       /* WME: txops limit */
2899         case IEEE80211_IOC_WME_ACM:             /* WME: ACM (bss only) */
2900         case IEEE80211_IOC_WME_ACKPOLICY:       /* WME: ACK policy (bss only) */
2901                 error = ieee80211_ioctl_setwmeparam(vap, ireq);
2902                 break;
2903         case IEEE80211_IOC_DTIM_PERIOD:
2904                 if (vap->iv_opmode != IEEE80211_M_HOSTAP &&
2905                     vap->iv_opmode != IEEE80211_M_MBSS &&
2906                     vap->iv_opmode != IEEE80211_M_IBSS)
2907                         return EINVAL;
2908                 if (IEEE80211_DTIM_MIN <= ireq->i_val &&
2909                     ireq->i_val <= IEEE80211_DTIM_MAX) {
2910                         vap->iv_dtim_period = ireq->i_val;
2911                         error = ENETRESET;              /* requires restart */
2912                 } else
2913                         error = EINVAL;
2914                 break;
2915         case IEEE80211_IOC_BEACON_INTERVAL:
2916                 if (vap->iv_opmode != IEEE80211_M_HOSTAP &&
2917                     vap->iv_opmode != IEEE80211_M_MBSS &&
2918                     vap->iv_opmode != IEEE80211_M_IBSS)
2919                         return EINVAL;
2920                 if (IEEE80211_BINTVAL_MIN <= ireq->i_val &&
2921                     ireq->i_val <= IEEE80211_BINTVAL_MAX) {
2922                         ic->ic_bintval = ireq->i_val;
2923                         error = ENETRESET;              /* requires restart */
2924                 } else
2925                         error = EINVAL;
2926                 break;
2927         case IEEE80211_IOC_PUREG:
2928                 if (ireq->i_val)
2929                         vap->iv_flags |= IEEE80211_F_PUREG;
2930                 else
2931                         vap->iv_flags &= ~IEEE80211_F_PUREG;
2932                 /* NB: reset only if we're operating on an 11g channel */
2933                 if (isvap11g(vap))
2934                         error = ENETRESET;
2935                 break;
2936         case IEEE80211_IOC_BGSCAN:
2937                 if (ireq->i_val) {
2938                         if ((vap->iv_caps & IEEE80211_C_BGSCAN) == 0)
2939                                 return EOPNOTSUPP;
2940                         vap->iv_flags |= IEEE80211_F_BGSCAN;
2941                 } else
2942                         vap->iv_flags &= ~IEEE80211_F_BGSCAN;
2943                 break;
2944         case IEEE80211_IOC_BGSCAN_IDLE:
2945                 if (ireq->i_val >= IEEE80211_BGSCAN_IDLE_MIN)
2946                         vap->iv_bgscanidle = ireq->i_val*hz/1000;
2947                 else
2948                         error = EINVAL;
2949                 break;
2950         case IEEE80211_IOC_BGSCAN_INTERVAL:
2951                 if (ireq->i_val >= IEEE80211_BGSCAN_INTVAL_MIN)
2952                         vap->iv_bgscanintvl = ireq->i_val*hz;
2953                 else
2954                         error = EINVAL;
2955                 break;
2956         case IEEE80211_IOC_SCANVALID:
2957                 if (ireq->i_val >= IEEE80211_SCAN_VALID_MIN)
2958                         vap->iv_scanvalid = ireq->i_val*hz;
2959                 else
2960                         error = EINVAL;
2961                 break;
2962         case IEEE80211_IOC_FRAGTHRESHOLD:
2963                 if ((vap->iv_caps & IEEE80211_C_TXFRAG) == 0 &&
2964                     ireq->i_val != IEEE80211_FRAG_MAX)
2965                         return EOPNOTSUPP;
2966                 if (!(IEEE80211_FRAG_MIN <= ireq->i_val &&
2967                       ireq->i_val <= IEEE80211_FRAG_MAX))
2968                         return EINVAL;
2969                 vap->iv_fragthreshold = ireq->i_val;
2970                 error = ERESTART;
2971                 break;
2972         case IEEE80211_IOC_BURST:
2973                 if (ireq->i_val) {
2974                         if ((vap->iv_caps & IEEE80211_C_BURST) == 0)
2975                                 return EOPNOTSUPP;
2976                         ieee80211_syncflag(vap, IEEE80211_F_BURST);
2977                 } else
2978                         ieee80211_syncflag(vap, -IEEE80211_F_BURST);
2979                 error = ERESTART;
2980                 break;
2981         case IEEE80211_IOC_BMISSTHRESHOLD:
2982                 if (!(IEEE80211_HWBMISS_MIN <= ireq->i_val &&
2983                       ireq->i_val <= IEEE80211_HWBMISS_MAX))
2984                         return EINVAL;
2985                 vap->iv_bmissthreshold = ireq->i_val;
2986                 error = ERESTART;
2987                 break;
2988         case IEEE80211_IOC_CURCHAN:
2989                 error = ieee80211_ioctl_setcurchan(vap, ireq);
2990                 break;
2991         case IEEE80211_IOC_SHORTGI:
2992                 if (ireq->i_val) {
2993 #define IEEE80211_HTCAP_SHORTGI \
2994         (IEEE80211_HTCAP_SHORTGI20 | IEEE80211_HTCAP_SHORTGI40)
2995                         if (((ireq->i_val ^ vap->iv_htcaps) & IEEE80211_HTCAP_SHORTGI) != 0)
2996                                 return EINVAL;
2997                         if (ireq->i_val & IEEE80211_HTCAP_SHORTGI20)
2998                                 vap->iv_flags_ht |= IEEE80211_FHT_SHORTGI20;
2999                         if (ireq->i_val & IEEE80211_HTCAP_SHORTGI40)
3000                                 vap->iv_flags_ht |= IEEE80211_FHT_SHORTGI40;
3001 #undef IEEE80211_HTCAP_SHORTGI
3002                 } else
3003                         vap->iv_flags_ht &=
3004                             ~(IEEE80211_FHT_SHORTGI20 | IEEE80211_FHT_SHORTGI40);
3005                 error = ERESTART;
3006                 break;
3007         case IEEE80211_IOC_AMPDU:
3008                 if (ireq->i_val && (vap->iv_htcaps & IEEE80211_HTC_AMPDU) == 0)
3009                         return EINVAL;
3010                 if (ireq->i_val & 1)
3011                         vap->iv_flags_ht |= IEEE80211_FHT_AMPDU_TX;
3012                 else
3013                         vap->iv_flags_ht &= ~IEEE80211_FHT_AMPDU_TX;
3014                 if (ireq->i_val & 2)
3015                         vap->iv_flags_ht |= IEEE80211_FHT_AMPDU_RX;
3016                 else
3017                         vap->iv_flags_ht &= ~IEEE80211_FHT_AMPDU_RX;
3018                 /* NB: reset only if we're operating on an 11n channel */
3019                 if (isvapht(vap))
3020                         error = ERESTART;
3021                 break;
3022         case IEEE80211_IOC_AMPDU_LIMIT:
3023                 if (!(IEEE80211_HTCAP_MAXRXAMPDU_8K <= ireq->i_val &&
3024                       ireq->i_val <= IEEE80211_HTCAP_MAXRXAMPDU_64K))
3025                         return EINVAL;
3026                 if (vap->iv_opmode == IEEE80211_M_HOSTAP)
3027                         vap->iv_ampdu_rxmax = ireq->i_val;
3028                 else
3029                         vap->iv_ampdu_limit = ireq->i_val;
3030                 error = ERESTART;
3031                 break;
3032         case IEEE80211_IOC_AMPDU_DENSITY:
3033                 if (!(IEEE80211_HTCAP_MPDUDENSITY_NA <= ireq->i_val &&
3034                       ireq->i_val <= IEEE80211_HTCAP_MPDUDENSITY_16))
3035                         return EINVAL;
3036                 vap->iv_ampdu_density = ireq->i_val;
3037                 error = ERESTART;
3038                 break;
3039         case IEEE80211_IOC_AMSDU:
3040                 if (ireq->i_val && (vap->iv_htcaps & IEEE80211_HTC_AMSDU) == 0)
3041                         return EINVAL;
3042                 if (ireq->i_val & 1)
3043                         vap->iv_flags_ht |= IEEE80211_FHT_AMSDU_TX;
3044                 else
3045                         vap->iv_flags_ht &= ~IEEE80211_FHT_AMSDU_TX;
3046                 if (ireq->i_val & 2)
3047                         vap->iv_flags_ht |= IEEE80211_FHT_AMSDU_RX;
3048                 else
3049                         vap->iv_flags_ht &= ~IEEE80211_FHT_AMSDU_RX;
3050                 /* NB: reset only if we're operating on an 11n channel */
3051                 if (isvapht(vap))
3052                         error = ERESTART;
3053                 break;
3054         case IEEE80211_IOC_AMSDU_LIMIT:
3055                 /* XXX validate */
3056                 vap->iv_amsdu_limit = ireq->i_val;      /* XXX truncation? */
3057                 break;
3058         case IEEE80211_IOC_PUREN:
3059                 if (ireq->i_val) {
3060                         if ((vap->iv_flags_ht & IEEE80211_FHT_HT) == 0)
3061                                 return EINVAL;
3062                         vap->iv_flags_ht |= IEEE80211_FHT_PUREN;
3063                 } else
3064                         vap->iv_flags_ht &= ~IEEE80211_FHT_PUREN;
3065                 /* NB: reset only if we're operating on an 11n channel */
3066                 if (isvapht(vap))
3067                         error = ERESTART;
3068                 break;
3069         case IEEE80211_IOC_DOTH:
3070                 if (ireq->i_val) {
3071 #if 0
3072                         /* XXX no capability */
3073                         if ((vap->iv_caps & IEEE80211_C_DOTH) == 0)
3074                                 return EOPNOTSUPP;
3075 #endif
3076                         vap->iv_flags |= IEEE80211_F_DOTH;
3077                 } else
3078                         vap->iv_flags &= ~IEEE80211_F_DOTH;
3079                 error = ENETRESET;
3080                 break;
3081         case IEEE80211_IOC_REGDOMAIN:
3082                 error = ieee80211_ioctl_setregdomain(vap, ireq);
3083                 break;
3084         case IEEE80211_IOC_ROAM:
3085                 error = ieee80211_ioctl_setroam(vap, ireq);
3086                 break;
3087         case IEEE80211_IOC_TXPARAMS:
3088                 error = ieee80211_ioctl_settxparams(vap, ireq);
3089                 break;
3090         case IEEE80211_IOC_HTCOMPAT:
3091                 if (ireq->i_val) {
3092                         if ((vap->iv_flags_ht & IEEE80211_FHT_HT) == 0)
3093                                 return EOPNOTSUPP;
3094                         vap->iv_flags_ht |= IEEE80211_FHT_HTCOMPAT;
3095                 } else
3096                         vap->iv_flags_ht &= ~IEEE80211_FHT_HTCOMPAT;
3097                 /* NB: reset only if we're operating on an 11n channel */
3098                 if (isvapht(vap))
3099                         error = ERESTART;
3100                 break;
3101         case IEEE80211_IOC_DWDS:
3102                 if (ireq->i_val) {
3103                         /* NB: DWDS only makes sense for WDS-capable devices */
3104                         if ((ic->ic_caps & IEEE80211_C_WDS) == 0)
3105                                 return EOPNOTSUPP;
3106                         /* NB: DWDS is used only with ap+sta vaps */
3107                         if (vap->iv_opmode != IEEE80211_M_HOSTAP &&
3108                             vap->iv_opmode != IEEE80211_M_STA)
3109                                 return EINVAL;
3110                         vap->iv_flags |= IEEE80211_F_DWDS;
3111                         if (vap->iv_opmode == IEEE80211_M_STA)
3112                                 vap->iv_flags_ext |= IEEE80211_FEXT_4ADDR;
3113                 } else {
3114                         vap->iv_flags &= ~IEEE80211_F_DWDS;
3115                         if (vap->iv_opmode == IEEE80211_M_STA)
3116                                 vap->iv_flags_ext &= ~IEEE80211_FEXT_4ADDR;
3117                 }
3118                 break;
3119         case IEEE80211_IOC_INACTIVITY:
3120                 if (ireq->i_val)
3121                         vap->iv_flags_ext |= IEEE80211_FEXT_INACT;
3122                 else
3123                         vap->iv_flags_ext &= ~IEEE80211_FEXT_INACT;
3124                 break;
3125         case IEEE80211_IOC_APPIE:
3126                 error = ieee80211_ioctl_setappie(vap, ireq);
3127                 break;
3128         case IEEE80211_IOC_WPS:
3129                 if (ireq->i_val) {
3130                         if ((vap->iv_caps & IEEE80211_C_WPA) == 0)
3131                                 return EOPNOTSUPP;
3132                         vap->iv_flags_ext |= IEEE80211_FEXT_WPS;
3133                 } else
3134                         vap->iv_flags_ext &= ~IEEE80211_FEXT_WPS;
3135                 break;
3136         case IEEE80211_IOC_TSN:
3137                 if (ireq->i_val) {
3138                         if ((vap->iv_caps & IEEE80211_C_WPA) == 0)
3139                                 return EOPNOTSUPP;
3140                         vap->iv_flags_ext |= IEEE80211_FEXT_TSN;
3141                 } else
3142                         vap->iv_flags_ext &= ~IEEE80211_FEXT_TSN;
3143                 break;
3144         case IEEE80211_IOC_CHANSWITCH:
3145                 error = ieee80211_ioctl_chanswitch(vap, ireq);
3146                 break;
3147         case IEEE80211_IOC_DFS:
3148                 if (ireq->i_val) {
3149                         if ((vap->iv_caps & IEEE80211_C_DFS) == 0)
3150                                 return EOPNOTSUPP;
3151                         /* NB: DFS requires 11h support */
3152                         if ((vap->iv_flags & IEEE80211_F_DOTH) == 0)
3153                                 return EINVAL;
3154                         vap->iv_flags_ext |= IEEE80211_FEXT_DFS;
3155                 } else
3156                         vap->iv_flags_ext &= ~IEEE80211_FEXT_DFS;
3157                 break;
3158         case IEEE80211_IOC_DOTD:
3159                 if (ireq->i_val)
3160                         vap->iv_flags_ext |= IEEE80211_FEXT_DOTD;
3161                 else
3162                         vap->iv_flags_ext &= ~IEEE80211_FEXT_DOTD;
3163                 if (vap->iv_opmode == IEEE80211_M_STA)
3164                         error = ENETRESET;
3165                 break;
3166         case IEEE80211_IOC_HTPROTMODE:
3167                 if (ireq->i_val > IEEE80211_PROT_RTSCTS)
3168                         return EINVAL;
3169                 ic->ic_htprotmode = ireq->i_val ?
3170                     IEEE80211_PROT_RTSCTS : IEEE80211_PROT_NONE;
3171                 /* NB: if not operating in 11n this can wait */
3172                 if (isvapht(vap))
3173                         error = ERESTART;
3174                 break;
3175         case IEEE80211_IOC_STA_VLAN:
3176                 error = ieee80211_ioctl_setstavlan(vap, ireq);
3177                 break;
3178         case IEEE80211_IOC_SMPS:
3179                 if ((ireq->i_val &~ IEEE80211_HTCAP_SMPS) != 0 ||
3180                     ireq->i_val == 0x0008)      /* value of 2 is reserved */
3181                         return EINVAL;
3182                 if (ireq->i_val != IEEE80211_HTCAP_SMPS_OFF &&
3183                     (vap->iv_htcaps & IEEE80211_HTC_SMPS) == 0)
3184                         return EOPNOTSUPP;
3185                 vap->iv_htcaps = (vap->iv_htcaps &~ IEEE80211_HTCAP_SMPS) |
3186                         ireq->i_val;
3187                 /* NB: if not operating in 11n this can wait */
3188                 if (isvapht(vap))
3189                         error = ERESTART;
3190                 break;
3191         case IEEE80211_IOC_RIFS:
3192                 if (ireq->i_val != 0) {
3193                         if ((vap->iv_htcaps & IEEE80211_HTC_RIFS) == 0)
3194                                 return EOPNOTSUPP;
3195                         vap->iv_flags_ht |= IEEE80211_FHT_RIFS;
3196                 } else
3197                         vap->iv_flags_ht &= ~IEEE80211_FHT_RIFS;
3198                 /* NB: if not operating in 11n this can wait */
3199                 if (isvapht(vap))
3200                         error = ERESTART;
3201                 break;
3202         default:
3203                 error = ieee80211_ioctl_setdefault(vap, ireq);
3204                 break;
3205         }
3206         /*
3207          * The convention is that ENETRESET means an operation
3208          * requires a complete re-initialization of the device (e.g.
3209          * changing something that affects the association state).
3210          * ERESTART means the request may be handled with only a
3211          * reload of the hardware state.  We hand ERESTART requests
3212          * to the iv_reset callback so the driver can decide.  If
3213          * a device does not fillin iv_reset then it defaults to one
3214          * that returns ENETRESET.  Otherwise a driver may return
3215          * ENETRESET (in which case a full reset will be done) or
3216          * 0 to mean there's no need to do anything (e.g. when the
3217          * change has no effect on the driver/device).
3218          */
3219         if (error == ERESTART)
3220                 error = IFNET_IS_UP_RUNNING(vap->iv_ifp) ?
3221                     vap->iv_reset(vap, ireq->i_type) : 0;
3222         if (error == ENETRESET) {
3223                 /* XXX need to re-think AUTO handling */
3224                 if (IS_UP_AUTO(vap))
3225                         ieee80211_init(vap);
3226                 error = 0;
3227         }
3228         return error;
3229 }
3230
3231 /*
3232  * Rebuild the parent's multicast address list after an add/del
3233  * of a multicast address for a vap.  We have no way to tell
3234  * what happened above to optimize the work so we purge the entire
3235  * list and rebuild from scratch.  This is way expensive.
3236  * Note also the half-baked workaround for if_addmulti calling
3237  * back to the parent device; there's no way to insert mcast
3238  * entries quietly and/or cheaply.
3239  */
3240 static void
3241 ieee80211_ioctl_updatemulti(struct ieee80211com *ic)
3242 {
3243         struct ifnet *parent = ic->ic_ifp;
3244         struct ieee80211vap *vap;
3245         void *ioctl;
3246
3247         IEEE80211_LOCK(ic);
3248         if_delallmulti(parent);
3249         ioctl = parent->if_ioctl;       /* XXX WAR if_allmulti */
3250         parent->if_ioctl = NULL;
3251         TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) {
3252                 struct ifnet *ifp = vap->iv_ifp;
3253                 struct ifmultiaddr *ifma;
3254
3255                 TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
3256                         if (ifma->ifma_addr->sa_family != AF_LINK)
3257                                 continue;
3258                         (void) if_addmulti(parent, ifma->ifma_addr, NULL);
3259                 }
3260         }
3261         parent->if_ioctl = ioctl;
3262         ieee80211_runtask(ic, &ic->ic_mcast_task);
3263         IEEE80211_UNLOCK(ic);
3264 }
3265
3266 int
3267 ieee80211_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
3268 {
3269         struct ieee80211vap *vap = ifp->if_softc;
3270         struct ieee80211com *ic = vap->iv_ic;
3271         int error = 0;
3272         struct ifreq *ifr;
3273         struct ifaddr *ifa;                     /* XXX */
3274
3275         switch (cmd) {
3276         case SIOCSIFFLAGS:
3277                 IEEE80211_LOCK(ic);
3278                 ieee80211_syncifflag_locked(ic, IFF_PROMISC);
3279                 ieee80211_syncifflag_locked(ic, IFF_ALLMULTI);
3280                 if (ifp->if_flags & IFF_UP) {
3281                         /*
3282                          * Bring ourself up unless we're already operational.
3283                          * If we're the first vap and the parent is not up
3284                          * then it will automatically be brought up as a
3285                          * side-effect of bringing ourself up.
3286                          */
3287                         if (vap->iv_state == IEEE80211_S_INIT)
3288                                 ieee80211_start_locked(vap);
3289                 } else if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
3290                         /*
3291                          * Stop ourself.  If we are the last vap to be
3292                          * marked down the parent will also be taken down.
3293                          */
3294                         ieee80211_stop_locked(vap);
3295                 }
3296                 IEEE80211_UNLOCK(ic);
3297                 /* Wait for parent ioctl handler if it was queued */
3298                 ieee80211_waitfor_parent(ic);
3299                 break;
3300         case SIOCADDMULTI:
3301         case SIOCDELMULTI:
3302                 ieee80211_ioctl_updatemulti(ic);
3303                 break;
3304         case SIOCSIFMEDIA:
3305         case SIOCGIFMEDIA:
3306                 ifr = (struct ifreq *)data;
3307                 error = ifmedia_ioctl(ifp, ifr, &vap->iv_media, cmd);
3308                 break;
3309         case SIOCG80211:
3310                 error = ieee80211_ioctl_get80211(vap, cmd,
3311                                 (struct ieee80211req *) data);
3312                 break;
3313         case SIOCS80211:
3314                 error = priv_check(curthread, PRIV_NET80211_MANAGE);
3315                 if (error == 0)
3316                         error = ieee80211_ioctl_set80211(vap, cmd,
3317                                         (struct ieee80211req *) data);
3318                 break;
3319         case SIOCG80211STATS:
3320                 ifr = (struct ifreq *)data;
3321                 copyout(&vap->iv_stats, ifr->ifr_data, sizeof (vap->iv_stats));
3322                 break;
3323         case SIOCSIFMTU:
3324                 ifr = (struct ifreq *)data;
3325                 if (!(IEEE80211_MTU_MIN <= ifr->ifr_mtu &&
3326                     ifr->ifr_mtu <= IEEE80211_MTU_MAX))
3327                         error = EINVAL;
3328                 else
3329                         ifp->if_mtu = ifr->ifr_mtu;
3330                 break;
3331         case SIOCSIFADDR:
3332                 /*
3333                  * XXX Handle this directly so we can supress if_init calls.
3334                  * XXX This should be done in ether_ioctl but for the moment
3335                  * XXX there are too many other parts of the system that
3336                  * XXX set IFF_UP and so supress if_init being called when
3337                  * XXX it should be.
3338                  */
3339                 ifa = (struct ifaddr *) data;
3340                 switch (ifa->ifa_addr->sa_family) {
3341 #ifdef INET
3342                 case AF_INET:
3343                         if ((ifp->if_flags & IFF_UP) == 0) {
3344                                 ifp->if_flags |= IFF_UP;
3345                                 ifp->if_init(ifp->if_softc);
3346                         }
3347                         arp_ifinit(ifp, ifa);
3348                         break;
3349 #endif
3350 #ifdef IPX
3351                 /*
3352                  * XXX - This code is probably wrong,
3353                  *       but has been copied many times.
3354                  */
3355                 case AF_IPX: {
3356                         struct ipx_addr *ina = &(IA_SIPX(ifa)->sipx_addr);
3357
3358                         if (ipx_nullhost(*ina))
3359                                 ina->x_host = *(union ipx_host *)
3360                                     IF_LLADDR(ifp);
3361                         else
3362                                 bcopy((caddr_t) ina->x_host.c_host,
3363                                       (caddr_t) IF_LLADDR(ifp),
3364                                       ETHER_ADDR_LEN);
3365                         /* fall thru... */
3366                 }
3367 #endif
3368                 default:
3369                         if ((ifp->if_flags & IFF_UP) == 0) {
3370                                 ifp->if_flags |= IFF_UP;
3371                                 ifp->if_init(ifp->if_softc);
3372                         }
3373                         break;
3374                 }
3375                 break;
3376         /* Pass NDIS ioctls up to the driver */
3377         case SIOCGDRVSPEC:
3378         case SIOCSDRVSPEC:
3379         case SIOCGPRIVATE_0: {
3380                 struct ifnet *parent = vap->iv_ic->ic_ifp;
3381                 error = parent->if_ioctl(parent, cmd, data);
3382                 break;
3383         }
3384         default:
3385                 error = ether_ioctl(ifp, cmd, data);
3386                 break;
3387         }
3388         return error;
3389 }