sys/net80211/ieee80211_ioctl.c

   1 /*-
   2  * Copyright (c) 2001 Atsushi Onoe
   3  * Copyright (c) 2002-2009 Sam Leffler, Errno Consulting
   4  * All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions and the following disclaimer.
  11  * 2. Redistributions in binary form must reproduce the above copyright
  12  *    notice, this list of conditions and the following disclaimer in the
  13  *    documentation and/or other materials provided with the distribution.
  14  *
  15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  17  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  18  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  19  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  20  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  21  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  22  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  24  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  25  */
  26
  27 #include <sys/cdefs.h>
  28 __FBSDID("$FreeBSD$");
  29
  30 /*
  31  * IEEE 802.11 ioctl support (FreeBSD-specific)
  32  */
  33
  34 #include "opt_inet.h"
  35 #include "opt_ipx.h"
  36 #include "opt_wlan.h"
  37
  38 #include <sys/endian.h>
  39 #include <sys/param.h>
  40 #include <sys/kernel.h>
  41 #include <sys/priv.h>
  42 #include <sys/socket.h>
  43 #include <sys/sockio.h>
  44 #include <sys/systm.h>
  45
  46 #include <net/if.h>
  47 #include <net/if_dl.h>
  48 #include <net/if_media.h>
  49 #include <net/ethernet.h>
  50
  51 #ifdef INET
  52 #include <netinet/in.h>
  53 #include <netinet/if_ether.h>
  54 #endif
  55
  56 #ifdef IPX
  57 #include <netipx/ipx.h>
  58 #include <netipx/ipx_if.h>
  59 #endif
  60
  61 #include <net80211/ieee80211_var.h>
  62 #include <net80211/ieee80211_ioctl.h>
  63 #include <net80211/ieee80211_regdomain.h>
  64 #include <net80211/ieee80211_input.h>
  65
  66 #define IS_UP_AUTO(_vap) \
  67         (IFNET_IS_UP_RUNNING((_vap)->iv_ifp) && \
  68          (_vap)->iv_roaming == IEEE80211_ROAMING_AUTO)
  69
  70 static const uint8_t zerobssid[IEEE80211_ADDR_LEN];
  71 static struct ieee80211_channel *findchannel(struct ieee80211com *,
  72                 int ieee, int mode);
  73 static int ieee80211_scanreq(struct ieee80211vap *,
  74                 struct ieee80211_scan_req *);
  75
  76 static __noinline int
  77 ieee80211_ioctl_getkey(struct ieee80211vap *vap, struct ieee80211req *ireq)
  78 {
  79         struct ieee80211com *ic = vap->iv_ic;
  80         struct ieee80211_node *ni;
  81         struct ieee80211req_key ik;
  82         struct ieee80211_key *wk;
  83         const struct ieee80211_cipher *cip;
  84         u_int kid;
  85         int error;
  86
  87         if (ireq->i_len != sizeof(ik))
  88                 return EINVAL;
  89         error = copyin(ireq->i_data, &ik, sizeof(ik));
  90         if (error)
  91                 return error;
  92         kid = ik.ik_keyix;
  93         if (kid == IEEE80211_KEYIX_NONE) {
  94                 ni = ieee80211_find_vap_node(&ic->ic_sta, vap, ik.ik_macaddr);
  95                 if (ni == NULL)
  96                         return ENOENT;
  97                 wk = &ni->ni_ucastkey;
  98         } else {
  99                 if (kid >= IEEE80211_WEP_NKID)
 100                         return EINVAL;
 101                 wk = &vap->iv_nw_keys[kid];
 102                 IEEE80211_ADDR_COPY(&ik.ik_macaddr, vap->iv_bss->ni_macaddr);
 103                 ni = NULL;
 104         }
 105         cip = wk->wk_cipher;
 106         ik.ik_type = cip->ic_cipher;
 107         ik.ik_keylen = wk->wk_keylen;
 108         ik.ik_flags = wk->wk_flags & (IEEE80211_KEY_XMIT | IEEE80211_KEY_RECV);
 109         if (wk->wk_keyix == vap->iv_def_txkey)
 110                 ik.ik_flags |= IEEE80211_KEY_DEFAULT;
 111         if (priv_check(curthread, PRIV_NET80211_GETKEY) == 0) {
 112                 /* NB: only root can read key data */
 113                 ik.ik_keyrsc = wk->wk_keyrsc[IEEE80211_NONQOS_TID];
 114                 ik.ik_keytsc = wk->wk_keytsc;
 115                 memcpy(ik.ik_keydata, wk->wk_key, wk->wk_keylen);
 116                 if (cip->ic_cipher == IEEE80211_CIPHER_TKIP) {
 117                         memcpy(ik.ik_keydata+wk->wk_keylen,
 118                                 wk->wk_key + IEEE80211_KEYBUF_SIZE,
 119                                 IEEE80211_MICBUF_SIZE);
 120                         ik.ik_keylen += IEEE80211_MICBUF_SIZE;
 121                 }
 122         } else {
 123                 ik.ik_keyrsc = 0;
 124                 ik.ik_keytsc = 0;
 125                 memset(ik.ik_keydata, 0, sizeof(ik.ik_keydata));
 126         }
 127         if (ni != NULL)
 128                 ieee80211_free_node(ni);
 129         return copyout(&ik, ireq->i_data, sizeof(ik));
 130 }
 131
 132 static __noinline int
 133 ieee80211_ioctl_getchanlist(struct ieee80211vap *vap, struct ieee80211req *ireq)
 134 {
 135         struct ieee80211com *ic = vap->iv_ic;
 136
 137         if (sizeof(ic->ic_chan_active) < ireq->i_len)
 138                 ireq->i_len = sizeof(ic->ic_chan_active);
 139         return copyout(&ic->ic_chan_active, ireq->i_data, ireq->i_len);
 140 }
 141
 142 static __noinline int
 143 ieee80211_ioctl_getchaninfo(struct ieee80211vap *vap, struct ieee80211req *ireq)
 144 {
 145         struct ieee80211com *ic = vap->iv_ic;
 146         uint32_t space;
 147
 148         space = __offsetof(struct ieee80211req_chaninfo,
 149                         ic_chans[ic->ic_nchans]);
 150         if (space > ireq->i_len)
 151                 space = ireq->i_len;
 152         /* XXX assumes compatible layout */
 153         return copyout(&ic->ic_nchans, ireq->i_data, space);
 154 }
 155
 156 static __noinline int
 157 ieee80211_ioctl_getwpaie(struct ieee80211vap *vap,
 158         struct ieee80211req *ireq, int req)
 159 {
 160         struct ieee80211_node *ni;
 161         struct ieee80211req_wpaie2 wpaie;
 162         int error;
 163
 164         if (ireq->i_len < IEEE80211_ADDR_LEN)
 165                 return EINVAL;
 166         error = copyin(ireq->i_data, wpaie.wpa_macaddr, IEEE80211_ADDR_LEN);
 167         if (error != 0)
 168                 return error;
 169         ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap, wpaie.wpa_macaddr);
 170         if (ni == NULL)
 171                 return ENOENT;
 172         memset(wpaie.wpa_ie, 0, sizeof(wpaie.wpa_ie));
 173         if (ni->ni_ies.wpa_ie != NULL) {
 174                 int ielen = ni->ni_ies.wpa_ie[1] + 2;
 175                 if (ielen > sizeof(wpaie.wpa_ie))
 176                         ielen = sizeof(wpaie.wpa_ie);
 177                 memcpy(wpaie.wpa_ie, ni->ni_ies.wpa_ie, ielen);
 178         }
 179         if (req == IEEE80211_IOC_WPAIE2) {
 180                 memset(wpaie.rsn_ie, 0, sizeof(wpaie.rsn_ie));
 181                 if (ni->ni_ies.rsn_ie != NULL) {
 182                         int ielen = ni->ni_ies.rsn_ie[1] + 2;
 183                         if (ielen > sizeof(wpaie.rsn_ie))
 184                                 ielen = sizeof(wpaie.rsn_ie);
 185                         memcpy(wpaie.rsn_ie, ni->ni_ies.rsn_ie, ielen);
 186                 }
 187                 if (ireq->i_len > sizeof(struct ieee80211req_wpaie2))
 188                         ireq->i_len = sizeof(struct ieee80211req_wpaie2);
 189         } else {
 190                 /* compatibility op, may overwrite wpa ie */
 191                 /* XXX check ic_flags? */
 192                 if (ni->ni_ies.rsn_ie != NULL) {
 193                         int ielen = ni->ni_ies.rsn_ie[1] + 2;
 194                         if (ielen > sizeof(wpaie.wpa_ie))
 195                                 ielen = sizeof(wpaie.wpa_ie);
 196                         memcpy(wpaie.wpa_ie, ni->ni_ies.rsn_ie, ielen);
 197                 }
 198                 if (ireq->i_len > sizeof(struct ieee80211req_wpaie))
 199                         ireq->i_len = sizeof(struct ieee80211req_wpaie);
 200         }
 201         ieee80211_free_node(ni);
 202         return copyout(&wpaie, ireq->i_data, ireq->i_len);
 203 }
 204
 205 static __noinline int
 206 ieee80211_ioctl_getstastats(struct ieee80211vap *vap, struct ieee80211req *ireq)
 207 {
 208         struct ieee80211_node *ni;
 209         uint8_t macaddr[IEEE80211_ADDR_LEN];
 210         const size_t off = __offsetof(struct ieee80211req_sta_stats, is_stats);
 211         int error;
 212
 213         if (ireq->i_len < off)
 214                 return EINVAL;
 215         error = copyin(ireq->i_data, macaddr, IEEE80211_ADDR_LEN);
 216         if (error != 0)
 217                 return error;
 218         ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap, macaddr);
 219         if (ni == NULL)
 220                 return ENOENT;
 221         if (ireq->i_len > sizeof(struct ieee80211req_sta_stats))
 222                 ireq->i_len = sizeof(struct ieee80211req_sta_stats);
 223         /* NB: copy out only the statistics */
 224         error = copyout(&ni->ni_stats, (uint8_t *) ireq->i_data + off,
 225                         ireq->i_len - off);
 226         ieee80211_free_node(ni);
 227         return error;
 228 }
 229
 230 struct scanreq {
 231         struct ieee80211req_scan_result *sr;
 232         size_t space;
 233 };
 234
 235 static size_t
 236 scan_space(const struct ieee80211_scan_entry *se, int *ielen)
 237 {
 238         size_t len;
 239
 240         *ielen = se->se_ies.len;
 241         /*
 242          * NB: ie's can be no more than 255 bytes and the max 802.11
 243          * packet is <3Kbytes so we are sure this doesn't overflow
 244          * 16-bits; if this is a concern we can drop the ie's.
 245          */
 246         len = sizeof(struct ieee80211req_scan_result) + se->se_ssid[1] +
 247             se->se_meshid[1] + *ielen;
 248         return roundup(len, sizeof(uint32_t));
 249 }
 250
 251 static void
 252 get_scan_space(void *arg, const struct ieee80211_scan_entry *se)
 253 {
 254         struct scanreq *req = arg;
 255         int ielen;
 256
 257         req->space += scan_space(se, &ielen);
 258 }
 259
 260 static __noinline void
 261 get_scan_result(void *arg, const struct ieee80211_scan_entry *se)
 262 {
 263         struct scanreq *req = arg;
 264         struct ieee80211req_scan_result *sr;
 265         int ielen, len, nr, nxr;
 266         uint8_t *cp;
 267
 268         len = scan_space(se, &ielen);
 269         if (len > req->space)
 270                 return;
 271
 272         sr = req->sr;
 273         KASSERT(len <= 65535 && ielen <= 65535,
 274             ("len %u ssid %u ie %u", len, se->se_ssid[1], ielen));
 275         sr->isr_len = len;
 276         sr->isr_ie_off = sizeof(struct ieee80211req_scan_result);
 277         sr->isr_ie_len = ielen;
 278         sr->isr_freq = se->se_chan->ic_freq;
 279         sr->isr_flags = se->se_chan->ic_flags;
 280         sr->isr_rssi = se->se_rssi;
 281         sr->isr_noise = se->se_noise;
 282         sr->isr_intval = se->se_intval;
 283         sr->isr_capinfo = se->se_capinfo;
 284         sr->isr_erp = se->se_erp;
 285         IEEE80211_ADDR_COPY(sr->isr_bssid, se->se_bssid);
 286         nr = min(se->se_rates[1], IEEE80211_RATE_MAXSIZE);
 287         memcpy(sr->isr_rates, se->se_rates+2, nr);
 288         nxr = min(se->se_xrates[1], IEEE80211_RATE_MAXSIZE - nr);
 289         memcpy(sr->isr_rates+nr, se->se_xrates+2, nxr);
 290         sr->isr_nrates = nr + nxr;
 291
 292         /* copy SSID */
 293         sr->isr_ssid_len = se->se_ssid[1];
 294         cp = ((uint8_t *)sr) + sr->isr_ie_off;
 295         memcpy(cp, se->se_ssid+2, sr->isr_ssid_len);
 296
 297         /* copy mesh id */
 298         cp += sr->isr_ssid_len;
 299         sr->isr_meshid_len = se->se_meshid[1];
 300         memcpy(cp, se->se_meshid+2, sr->isr_meshid_len);
 301         cp += sr->isr_meshid_len;
 302
 303         if (ielen)
 304                 memcpy(cp, se->se_ies.data, ielen);
 305
 306         req->space -= len;
 307         req->sr = (struct ieee80211req_scan_result *)(((uint8_t *)sr) + len);
 308 }
 309
 310 static __noinline int
 311 ieee80211_ioctl_getscanresults(struct ieee80211vap *vap,
 312         struct ieee80211req *ireq)
 313 {
 314         struct scanreq req;
 315         int error;
 316
 317         if (ireq->i_len < sizeof(struct scanreq))
 318                 return EFAULT;
 319
 320         error = 0;
 321         req.space = 0;
 322         ieee80211_scan_iterate(vap, get_scan_space, &req);
 323         if (req.space > ireq->i_len)
 324                 req.space = ireq->i_len;
 325         if (req.space > 0) {
 326                 uint32_t space;
 327                 void *p;
 328
 329                 space = req.space;
 330                 /* XXX M_WAITOK after driver lock released */
 331                 p = malloc(space, M_TEMP, M_NOWAIT | M_ZERO);
 332                 if (p == NULL)
 333                         return ENOMEM;
 334                 req.sr = p;
 335                 ieee80211_scan_iterate(vap, get_scan_result, &req);
 336                 ireq->i_len = space - req.space;
 337                 error = copyout(p, ireq->i_data, ireq->i_len);
 338                 free(p, M_TEMP);
 339         } else
 340                 ireq->i_len = 0;
 341
 342         return error;
 343 }
 344
 345 struct stainforeq {
 346         struct ieee80211vap *vap;
 347         struct ieee80211req_sta_info *si;
 348         size_t  space;
 349 };
 350
 351 static size_t
 352 sta_space(const struct ieee80211_node *ni, size_t *ielen)
 353 {
 354         *ielen = ni->ni_ies.len;
 355         return roundup(sizeof(struct ieee80211req_sta_info) + *ielen,
 356                       sizeof(uint32_t));
 357 }
 358
 359 static void
 360 get_sta_space(void *arg, struct ieee80211_node *ni)
 361 {
 362         struct stainforeq *req = arg;
 363         size_t ielen;
 364
 365         if (req->vap != ni->ni_vap)
 366                 return;
 367         if (ni->ni_vap->iv_opmode == IEEE80211_M_HOSTAP &&
 368             ni->ni_associd == 0)        /* only associated stations */
 369                 return;
 370         req->space += sta_space(ni, &ielen);
 371 }
 372
 373 static __noinline void
 374 get_sta_info(void *arg, struct ieee80211_node *ni)
 375 {
 376         struct stainforeq *req = arg;
 377         struct ieee80211vap *vap = ni->ni_vap;
 378         struct ieee80211req_sta_info *si;
 379         size_t ielen, len;
 380         uint8_t *cp;
 381
 382         if (req->vap != ni->ni_vap)
 383                 return;
 384         if (vap->iv_opmode == IEEE80211_M_HOSTAP &&
 385             ni->ni_associd == 0)        /* only associated stations */
 386                 return;
 387         if (ni->ni_chan == IEEE80211_CHAN_ANYC) /* XXX bogus entry */
 388                 return;
 389         len = sta_space(ni, &ielen);
 390         if (len > req->space)
 391                 return;
 392         si = req->si;
 393         si->isi_len = len;
 394         si->isi_ie_off = sizeof(struct ieee80211req_sta_info);
 395         si->isi_ie_len = ielen;
 396         si->isi_freq = ni->ni_chan->ic_freq;
 397         si->isi_flags = ni->ni_chan->ic_flags;
 398         si->isi_state = ni->ni_flags;
 399         si->isi_authmode = ni->ni_authmode;
 400         vap->iv_ic->ic_node_getsignal(ni, &si->isi_rssi, &si->isi_noise);
 401         vap->iv_ic->ic_node_getmimoinfo(ni, &si->isi_mimo);
 402         si->isi_capinfo = ni->ni_capinfo;
 403         si->isi_erp = ni->ni_erp;
 404         IEEE80211_ADDR_COPY(si->isi_macaddr, ni->ni_macaddr);
 405         si->isi_nrates = ni->ni_rates.rs_nrates;
 406         if (si->isi_nrates > 15)
 407                 si->isi_nrates = 15;
 408         memcpy(si->isi_rates, ni->ni_rates.rs_rates, si->isi_nrates);
 409         si->isi_txrate = ni->ni_txrate;
 410         if (si->isi_txrate & IEEE80211_RATE_MCS) {
 411                 const struct ieee80211_mcs_rates *mcs =
 412                     &ieee80211_htrates[ni->ni_txrate &~ IEEE80211_RATE_MCS];
 413                 if (IEEE80211_IS_CHAN_HT40(ni->ni_chan)) {
 414                         if (ni->ni_flags & IEEE80211_NODE_SGI40)
 415                                 si->isi_txmbps = mcs->ht40_rate_800ns;
 416                         else
 417                                 si->isi_txmbps = mcs->ht40_rate_400ns;
 418                 } else {
 419                         if (ni->ni_flags & IEEE80211_NODE_SGI20)
 420                                 si->isi_txmbps = mcs->ht20_rate_800ns;
 421                         else
 422                                 si->isi_txmbps = mcs->ht20_rate_400ns;
 423                 }
 424         } else
 425                 si->isi_txmbps = si->isi_txrate;
 426         si->isi_associd = ni->ni_associd;
 427         si->isi_txpower = ni->ni_txpower;
 428         si->isi_vlan = ni->ni_vlan;
 429         if (ni->ni_flags & IEEE80211_NODE_QOS) {
 430                 memcpy(si->isi_txseqs, ni->ni_txseqs, sizeof(ni->ni_txseqs));
 431                 memcpy(si->isi_rxseqs, ni->ni_rxseqs, sizeof(ni->ni_rxseqs));
 432         } else {
 433                 si->isi_txseqs[0] = ni->ni_txseqs[IEEE80211_NONQOS_TID];
 434                 si->isi_rxseqs[0] = ni->ni_rxseqs[IEEE80211_NONQOS_TID];
 435         }
 436         /* NB: leave all cases in case we relax ni_associd == 0 check */
 437         if (ieee80211_node_is_authorized(ni))
 438                 si->isi_inact = vap->iv_inact_run;
 439         else if (ni->ni_associd != 0 ||
 440             (vap->iv_opmode == IEEE80211_M_WDS &&
 441              (vap->iv_flags_ext & IEEE80211_FEXT_WDSLEGACY)))
 442                 si->isi_inact = vap->iv_inact_auth;
 443         else
 444                 si->isi_inact = vap->iv_inact_init;
 445         si->isi_inact = (si->isi_inact - ni->ni_inact) * IEEE80211_INACT_WAIT;
 446         si->isi_localid = ni->ni_mllid;
 447         si->isi_peerid = ni->ni_mlpid;
 448         si->isi_peerstate = ni->ni_mlstate;
 449
 450         if (ielen) {
 451                 cp = ((uint8_t *)si) + si->isi_ie_off;
 452                 memcpy(cp, ni->ni_ies.data, ielen);
 453         }
 454
 455         req->si = (struct ieee80211req_sta_info *)(((uint8_t *)si) + len);
 456         req->space -= len;
 457 }
 458
 459 static __noinline int
 460 getstainfo_common(struct ieee80211vap *vap, struct ieee80211req *ireq,
 461         struct ieee80211_node *ni, size_t off)
 462 {
 463         struct ieee80211com *ic = vap->iv_ic;
 464         struct stainforeq req;
 465         size_t space;
 466         void *p;
 467         int error;
 468
 469         error = 0;
 470         req.space = 0;
 471         req.vap = vap;
 472         if (ni == NULL)
 473                 ieee80211_iterate_nodes(&ic->ic_sta, get_sta_space, &req);
 474         else
 475                 get_sta_space(&req, ni);
 476         if (req.space > ireq->i_len)
 477                 req.space = ireq->i_len;
 478         if (req.space > 0) {
 479                 space = req.space;
 480                 /* XXX M_WAITOK after driver lock released */
 481                 p = malloc(space, M_TEMP, M_NOWAIT | M_ZERO);
 482                 if (p == NULL) {
 483                         error = ENOMEM;
 484                         goto bad;
 485                 }
 486                 req.si = p;
 487                 if (ni == NULL)
 488                         ieee80211_iterate_nodes(&ic->ic_sta, get_sta_info, &req);
 489                 else
 490                         get_sta_info(&req, ni);
 491                 ireq->i_len = space - req.space;
 492                 error = copyout(p, (uint8_t *) ireq->i_data+off, ireq->i_len);
 493                 free(p, M_TEMP);
 494         } else
 495                 ireq->i_len = 0;
 496 bad:
 497         if (ni != NULL)
 498                 ieee80211_free_node(ni);
 499         return error;
 500 }
 501
 502 static __noinline int
 503 ieee80211_ioctl_getstainfo(struct ieee80211vap *vap, struct ieee80211req *ireq)
 504 {
 505         uint8_t macaddr[IEEE80211_ADDR_LEN];
 506         const size_t off = __offsetof(struct ieee80211req_sta_req, info);
 507         struct ieee80211_node *ni;
 508         int error;
 509
 510         if (ireq->i_len < sizeof(struct ieee80211req_sta_req))
 511                 return EFAULT;
 512         error = copyin(ireq->i_data, macaddr, IEEE80211_ADDR_LEN);
 513         if (error != 0)
 514                 return error;
 515         if (IEEE80211_ADDR_EQ(macaddr, vap->iv_ifp->if_broadcastaddr)) {
 516                 ni = NULL;
 517         } else {
 518                 ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap, macaddr);
 519                 if (ni == NULL)
 520                         return ENOENT;
 521         }
 522         return getstainfo_common(vap, ireq, ni, off);
 523 }
 524
 525 static __noinline int
 526 ieee80211_ioctl_getstatxpow(struct ieee80211vap *vap, struct ieee80211req *ireq)
 527 {
 528         struct ieee80211_node *ni;
 529         struct ieee80211req_sta_txpow txpow;
 530         int error;
 531
 532         if (ireq->i_len != sizeof(txpow))
 533                 return EINVAL;
 534         error = copyin(ireq->i_data, &txpow, sizeof(txpow));
 535         if (error != 0)
 536                 return error;
 537         ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap, txpow.it_macaddr);
 538         if (ni == NULL)
 539                 return ENOENT;
 540         txpow.it_txpow = ni->ni_txpower;
 541         error = copyout(&txpow, ireq->i_data, sizeof(txpow));
 542         ieee80211_free_node(ni);
 543         return error;
 544 }
 545
 546 static __noinline int
 547 ieee80211_ioctl_getwmeparam(struct ieee80211vap *vap, struct ieee80211req *ireq)
 548 {
 549         struct ieee80211com *ic = vap->iv_ic;
 550         struct ieee80211_wme_state *wme = &ic->ic_wme;
 551         struct wmeParams *wmep;
 552         int ac;
 553
 554         if ((ic->ic_caps & IEEE80211_C_WME) == 0)
 555                 return EINVAL;
 556
 557         ac = (ireq->i_len & IEEE80211_WMEPARAM_VAL);
 558         if (ac >= WME_NUM_AC)
 559                 ac = WME_AC_BE;
 560         if (ireq->i_len & IEEE80211_WMEPARAM_BSS)
 561                 wmep = &wme->wme_wmeBssChanParams.cap_wmeParams[ac];
 562         else
 563                 wmep = &wme->wme_wmeChanParams.cap_wmeParams[ac];
 564         switch (ireq->i_type) {
 565         case IEEE80211_IOC_WME_CWMIN:           /* WME: CWmin */
 566                 ireq->i_val = wmep->wmep_logcwmin;
 567                 break;
 568         case IEEE80211_IOC_WME_CWMAX:           /* WME: CWmax */
 569                 ireq->i_val = wmep->wmep_logcwmax;
 570                 break;
 571         case IEEE80211_IOC_WME_AIFS:            /* WME: AIFS */
 572                 ireq->i_val = wmep->wmep_aifsn;
 573                 break;
 574         case IEEE80211_IOC_WME_TXOPLIMIT:       /* WME: txops limit */
 575                 ireq->i_val = wmep->wmep_txopLimit;
 576                 break;
 577         case IEEE80211_IOC_WME_ACM:             /* WME: ACM (bss only) */
 578                 wmep = &wme->wme_wmeBssChanParams.cap_wmeParams[ac];
 579                 ireq->i_val = wmep->wmep_acm;
 580                 break;
 581         case IEEE80211_IOC_WME_ACKPOLICY:       /* WME: ACK policy (!bss only)*/
 582                 wmep = &wme->wme_wmeChanParams.cap_wmeParams[ac];
 583                 ireq->i_val = !wmep->wmep_noackPolicy;
 584                 break;
 585         }
 586         return 0;
 587 }
 588
 589 static __noinline int
 590 ieee80211_ioctl_getmaccmd(struct ieee80211vap *vap, struct ieee80211req *ireq)
 591 {
 592         const struct ieee80211_aclator *acl = vap->iv_acl;
 593
 594         return (acl == NULL ? EINVAL : acl->iac_getioctl(vap, ireq));
 595 }
 596
 597 static __noinline int
 598 ieee80211_ioctl_getcurchan(struct ieee80211vap *vap, struct ieee80211req *ireq)
 599 {
 600         struct ieee80211com *ic = vap->iv_ic;
 601         struct ieee80211_channel *c;
 602
 603         if (ireq->i_len != sizeof(struct ieee80211_channel))
 604                 return EINVAL;
 605         /*
 606          * vap's may have different operating channels when HT is
 607          * in use.  When in RUN state report the vap-specific channel.
 608          * Otherwise return curchan.
 609          */
 610         if (vap->iv_state == IEEE80211_S_RUN)
 611                 c = vap->iv_bss->ni_chan;
 612         else
 613                 c = ic->ic_curchan;
 614         return copyout(c, ireq->i_data, sizeof(*c));
 615 }
 616
 617 static int
 618 getappie(const struct ieee80211_appie *aie, struct ieee80211req *ireq)
 619 {
 620         if (aie == NULL)
 621                 return EINVAL;
 622         /* NB: truncate, caller can check length */
 623         if (ireq->i_len > aie->ie_len)
 624                 ireq->i_len = aie->ie_len;
 625         return copyout(aie->ie_data, ireq->i_data, ireq->i_len);
 626 }
 627
 628 static int
 629 ieee80211_ioctl_getappie(struct ieee80211vap *vap, struct ieee80211req *ireq)
 630 {
 631         uint8_t fc0;
 632
 633         fc0 = ireq->i_val & 0xff;
 634         if ((fc0 & IEEE80211_FC0_TYPE_MASK) != IEEE80211_FC0_TYPE_MGT)
 635                 return EINVAL;
 636         /* NB: could check iv_opmode and reject but hardly worth the effort */
 637         switch (fc0 & IEEE80211_FC0_SUBTYPE_MASK) {
 638         case IEEE80211_FC0_SUBTYPE_BEACON:
 639                 return getappie(vap->iv_appie_beacon, ireq);
 640         case IEEE80211_FC0_SUBTYPE_PROBE_RESP:
 641                 return getappie(vap->iv_appie_proberesp, ireq);
 642         case IEEE80211_FC0_SUBTYPE_ASSOC_RESP:
 643                 return getappie(vap->iv_appie_assocresp, ireq);
 644         case IEEE80211_FC0_SUBTYPE_PROBE_REQ:
 645                 return getappie(vap->iv_appie_probereq, ireq);
 646         case IEEE80211_FC0_SUBTYPE_ASSOC_REQ:
 647                 return getappie(vap->iv_appie_assocreq, ireq);
 648         case IEEE80211_FC0_SUBTYPE_BEACON|IEEE80211_FC0_SUBTYPE_PROBE_RESP:
 649                 return getappie(vap->iv_appie_wpa, ireq);
 650         }
 651         return EINVAL;
 652 }
 653
 654 static __noinline int
 655 ieee80211_ioctl_getregdomain(struct ieee80211vap *vap,
 656         const struct ieee80211req *ireq)
 657 {
 658         struct ieee80211com *ic = vap->iv_ic;
 659
 660         if (ireq->i_len != sizeof(ic->ic_regdomain))
 661                 return EINVAL;
 662         return copyout(&ic->ic_regdomain, ireq->i_data,
 663             sizeof(ic->ic_regdomain));
 664 }
 665
 666 static __noinline int
 667 ieee80211_ioctl_getroam(struct ieee80211vap *vap,
 668         const struct ieee80211req *ireq)
 669 {
 670         size_t len = ireq->i_len;
 671         /* NB: accept short requests for backwards compat */
 672         if (len > sizeof(vap->iv_roamparms))
 673                 len = sizeof(vap->iv_roamparms);
 674         return copyout(vap->iv_roamparms, ireq->i_data, len);
 675 }
 676
 677 static __noinline int
 678 ieee80211_ioctl_gettxparams(struct ieee80211vap *vap,
 679         const struct ieee80211req *ireq)
 680 {
 681         size_t len = ireq->i_len;
 682         /* NB: accept short requests for backwards compat */
 683         if (len > sizeof(vap->iv_txparms))
 684                 len = sizeof(vap->iv_txparms);
 685         return copyout(vap->iv_txparms, ireq->i_data, len);
 686 }
 687
 688 static __noinline int
 689 ieee80211_ioctl_getdevcaps(struct ieee80211com *ic,
 690         const struct ieee80211req *ireq)
 691 {
 692         struct ieee80211_devcaps_req *dc;
 693         struct ieee80211req_chaninfo *ci;
 694         int maxchans, error;
 695
 696         maxchans = 1 + ((ireq->i_len - sizeof(struct ieee80211_devcaps_req)) /
 697             sizeof(struct ieee80211_channel));
 698         /* NB: require 1 so we know ic_nchans is accessible */
 699         if (maxchans < 1)
 700                 return EINVAL;
 701         /* constrain max request size, 2K channels is ~24Kbytes */
 702         if (maxchans > 2048)
 703                 maxchans = 2048;
 704         dc = (struct ieee80211_devcaps_req *)
 705             malloc(IEEE80211_DEVCAPS_SIZE(maxchans), M_TEMP, M_NOWAIT | M_ZERO);
 706         if (dc == NULL)
 707                 return ENOMEM;
 708         dc->dc_drivercaps = ic->ic_caps;
 709         dc->dc_cryptocaps = ic->ic_cryptocaps;
 710         dc->dc_htcaps = ic->ic_htcaps;
 711         ci = &dc->dc_chaninfo;
 712         ic->ic_getradiocaps(ic, maxchans, &ci->ic_nchans, ci->ic_chans);
 713         KASSERT(ci->ic_nchans <= maxchans,
 714             ("nchans %d maxchans %d", ci->ic_nchans, maxchans));
 715         ieee80211_sort_channels(ci->ic_chans, ci->ic_nchans);
 716         error = copyout(dc, ireq->i_data, IEEE80211_DEVCAPS_SPACE(dc));
 717         free(dc, M_TEMP);
 718         return error;
 719 }
 720
 721 static __noinline int
 722 ieee80211_ioctl_getstavlan(struct ieee80211vap *vap, struct ieee80211req *ireq)
 723 {
 724         struct ieee80211_node *ni;
 725         struct ieee80211req_sta_vlan vlan;
 726         int error;
 727
 728         if (ireq->i_len != sizeof(vlan))
 729                 return EINVAL;
 730         error = copyin(ireq->i_data, &vlan, sizeof(vlan));
 731         if (error != 0)
 732                 return error;
 733         if (!IEEE80211_ADDR_EQ(vlan.sv_macaddr, zerobssid)) {
 734                 ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap,
 735                     vlan.sv_macaddr);
 736                 if (ni == NULL)
 737                         return ENOENT;
 738         } else
 739                 ni = ieee80211_ref_node(vap->iv_bss);
 740         vlan.sv_vlan = ni->ni_vlan;
 741         error = copyout(&vlan, ireq->i_data, sizeof(vlan));
 742         ieee80211_free_node(ni);
 743         return error;
 744 }
 745
 746 /*
 747  * Dummy ioctl get handler so the linker set is defined.
 748  */
 749 static int
 750 dummy_ioctl_get(struct ieee80211vap *vap, struct ieee80211req *ireq)
 751 {
 752         return ENOSYS;
 753 }
 754 IEEE80211_IOCTL_GET(dummy, dummy_ioctl_get);
 755
 756 static int
 757 ieee80211_ioctl_getdefault(struct ieee80211vap *vap, struct ieee80211req *ireq)
 758 {
 759         ieee80211_ioctl_getfunc * const *get;
 760         int error;
 761
 762         SET_FOREACH(get, ieee80211_ioctl_getset) {
 763                 error = (*get)(vap, ireq);
 764                 if (error != ENOSYS)
 765                         return error;
 766         }
 767         return EINVAL;
 768 }
 769
 770 /*
 771  * When building the kernel with -O2 on the i386 architecture, gcc
 772  * seems to want to inline this function into ieee80211_ioctl()
 773  * (which is the only routine that calls it). When this happens,
 774  * ieee80211_ioctl() ends up consuming an additional 2K of stack
 775  * space. (Exactly why it needs so much is unclear.) The problem
 776  * is that it's possible for ieee80211_ioctl() to invoke other
 777  * routines (including driver init functions) which could then find
 778  * themselves perilously close to exhausting the stack.
 779  *
 780  * To avoid this, we deliberately prevent gcc from inlining this
 781  * routine. Another way to avoid this is to use less agressive
 782  * optimization when compiling this file (i.e. -O instead of -O2)
 783  * but special-casing the compilation of this one module in the
 784  * build system would be awkward.
 785  */
 786 static __noinline int
 787 ieee80211_ioctl_get80211(struct ieee80211vap *vap, u_long cmd,
 788     struct ieee80211req *ireq)
 789 {
 790 #define MS(_v, _f)      (((_v) & _f) >> _f##_S)
 791         struct ieee80211com *ic = vap->iv_ic;
 792         u_int kid, len;
 793         uint8_t tmpkey[IEEE80211_KEYBUF_SIZE];
 794         char tmpssid[IEEE80211_NWID_LEN];
 795         int error = 0;
 796
 797         switch (ireq->i_type) {
 798         case IEEE80211_IOC_SSID:
 799                 switch (vap->iv_state) {
 800                 case IEEE80211_S_INIT:
 801                 case IEEE80211_S_SCAN:
 802                         ireq->i_len = vap->iv_des_ssid[0].len;
 803                         memcpy(tmpssid, vap->iv_des_ssid[0].ssid, ireq->i_len);
 804                         break;
 805                 default:
 806                         ireq->i_len = vap->iv_bss->ni_esslen;
 807                         memcpy(tmpssid, vap->iv_bss->ni_essid, ireq->i_len);
 808                         break;
 809                 }
 810                 error = copyout(tmpssid, ireq->i_data, ireq->i_len);
 811                 break;
 812         case IEEE80211_IOC_NUMSSIDS:
 813                 ireq->i_val = 1;
 814                 break;
 815         case IEEE80211_IOC_WEP:
 816                 if ((vap->iv_flags & IEEE80211_F_PRIVACY) == 0)
 817                         ireq->i_val = IEEE80211_WEP_OFF;
 818                 else if (vap->iv_flags & IEEE80211_F_DROPUNENC)
 819                         ireq->i_val = IEEE80211_WEP_ON;
 820                 else
 821                         ireq->i_val = IEEE80211_WEP_MIXED;
 822                 break;
 823         case IEEE80211_IOC_WEPKEY:
 824                 kid = (u_int) ireq->i_val;
 825                 if (kid >= IEEE80211_WEP_NKID)
 826                         return EINVAL;
 827                 len = (u_int) vap->iv_nw_keys[kid].wk_keylen;
 828                 /* NB: only root can read WEP keys */
 829                 if (priv_check(curthread, PRIV_NET80211_GETKEY) == 0) {
 830                         bcopy(vap->iv_nw_keys[kid].wk_key, tmpkey, len);
 831                 } else {
 832                         bzero(tmpkey, len);
 833                 }
 834                 ireq->i_len = len;
 835                 error = copyout(tmpkey, ireq->i_data, len);
 836                 break;
 837         case IEEE80211_IOC_NUMWEPKEYS:
 838                 ireq->i_val = IEEE80211_WEP_NKID;
 839                 break;
 840         case IEEE80211_IOC_WEPTXKEY:
 841                 ireq->i_val = vap->iv_def_txkey;
 842                 break;
 843         case IEEE80211_IOC_AUTHMODE:
 844                 if (vap->iv_flags & IEEE80211_F_WPA)
 845                         ireq->i_val = IEEE80211_AUTH_WPA;
 846                 else
 847                         ireq->i_val = vap->iv_bss->ni_authmode;
 848                 break;
 849         case IEEE80211_IOC_CHANNEL:
 850                 ireq->i_val = ieee80211_chan2ieee(ic, ic->ic_curchan);
 851                 break;
 852         case IEEE80211_IOC_POWERSAVE:
 853                 if (vap->iv_flags & IEEE80211_F_PMGTON)
 854                         ireq->i_val = IEEE80211_POWERSAVE_ON;
 855                 else
 856                         ireq->i_val = IEEE80211_POWERSAVE_OFF;
 857                 break;
 858         case IEEE80211_IOC_POWERSAVESLEEP:
 859                 ireq->i_val = ic->ic_lintval;
 860                 break;
 861         case IEEE80211_IOC_RTSTHRESHOLD:
 862                 ireq->i_val = vap->iv_rtsthreshold;
 863                 break;
 864         case IEEE80211_IOC_PROTMODE:
 865                 ireq->i_val = ic->ic_protmode;
 866                 break;
 867         case IEEE80211_IOC_TXPOWER:
 868                 /*
 869                  * Tx power limit is the min of max regulatory
 870                  * power, any user-set limit, and the max the
 871                  * radio can do.
 872                  */
 873                 ireq->i_val = 2*ic->ic_curchan->ic_maxregpower;
 874                 if (ireq->i_val > ic->ic_txpowlimit)
 875                         ireq->i_val = ic->ic_txpowlimit;
 876                 if (ireq->i_val > ic->ic_curchan->ic_maxpower)
 877                         ireq->i_val = ic->ic_curchan->ic_maxpower;
 878                 break;
 879         case IEEE80211_IOC_WPA:
 880                 switch (vap->iv_flags & IEEE80211_F_WPA) {
 881                 case IEEE80211_F_WPA1:
 882                         ireq->i_val = 1;
 883                         break;
 884                 case IEEE80211_F_WPA2:
 885                         ireq->i_val = 2;
 886                         break;
 887                 case IEEE80211_F_WPA1 | IEEE80211_F_WPA2:
 888                         ireq->i_val = 3;
 889                         break;
 890                 default:
 891                         ireq->i_val = 0;
 892                         break;
 893                 }
 894                 break;
 895         case IEEE80211_IOC_CHANLIST:
 896                 error = ieee80211_ioctl_getchanlist(vap, ireq);
 897                 break;
 898         case IEEE80211_IOC_ROAMING:
 899                 ireq->i_val = vap->iv_roaming;
 900                 break;
 901         case IEEE80211_IOC_PRIVACY:
 902                 ireq->i_val = (vap->iv_flags & IEEE80211_F_PRIVACY) != 0;
 903                 break;
 904         case IEEE80211_IOC_DROPUNENCRYPTED:
 905                 ireq->i_val = (vap->iv_flags & IEEE80211_F_DROPUNENC) != 0;
 906                 break;
 907         case IEEE80211_IOC_COUNTERMEASURES:
 908                 ireq->i_val = (vap->iv_flags & IEEE80211_F_COUNTERM) != 0;
 909                 break;
 910         case IEEE80211_IOC_WME:
 911                 ireq->i_val = (vap->iv_flags & IEEE80211_F_WME) != 0;
 912                 break;
 913         case IEEE80211_IOC_HIDESSID:
 914                 ireq->i_val = (vap->iv_flags & IEEE80211_F_HIDESSID) != 0;
 915                 break;
 916         case IEEE80211_IOC_APBRIDGE:
 917                 ireq->i_val = (vap->iv_flags & IEEE80211_F_NOBRIDGE) == 0;
 918                 break;
 919         case IEEE80211_IOC_WPAKEY:
 920                 error = ieee80211_ioctl_getkey(vap, ireq);
 921                 break;
 922         case IEEE80211_IOC_CHANINFO:
 923                 error = ieee80211_ioctl_getchaninfo(vap, ireq);
 924                 break;
 925         case IEEE80211_IOC_BSSID:
 926                 if (ireq->i_len != IEEE80211_ADDR_LEN)
 927                         return EINVAL;
 928                 if (vap->iv_state == IEEE80211_S_RUN) {
 929                         error = copyout(vap->iv_opmode == IEEE80211_M_WDS ?
 930                             vap->iv_bss->ni_macaddr : vap->iv_bss->ni_bssid,
 931                             ireq->i_data, ireq->i_len);
 932                 } else
 933                         error = copyout(vap->iv_des_bssid, ireq->i_data,
 934                             ireq->i_len);
 935                 break;
 936         case IEEE80211_IOC_WPAIE:
 937                 error = ieee80211_ioctl_getwpaie(vap, ireq, ireq->i_type);
 938                 break;
 939         case IEEE80211_IOC_WPAIE2:
 940                 error = ieee80211_ioctl_getwpaie(vap, ireq, ireq->i_type);
 941                 break;
 942         case IEEE80211_IOC_SCAN_RESULTS:
 943                 error = ieee80211_ioctl_getscanresults(vap, ireq);
 944                 break;
 945         case IEEE80211_IOC_STA_STATS:
 946                 error = ieee80211_ioctl_getstastats(vap, ireq);
 947                 break;
 948         case IEEE80211_IOC_TXPOWMAX:
 949                 ireq->i_val = vap->iv_bss->ni_txpower;
 950                 break;
 951         case IEEE80211_IOC_STA_TXPOW:
 952                 error = ieee80211_ioctl_getstatxpow(vap, ireq);
 953                 break;
 954         case IEEE80211_IOC_STA_INFO:
 955                 error = ieee80211_ioctl_getstainfo(vap, ireq);
 956                 break;
 957         case IEEE80211_IOC_WME_CWMIN:           /* WME: CWmin */
 958         case IEEE80211_IOC_WME_CWMAX:           /* WME: CWmax */
 959         case IEEE80211_IOC_WME_AIFS:            /* WME: AIFS */
 960         case IEEE80211_IOC_WME_TXOPLIMIT:       /* WME: txops limit */
 961         case IEEE80211_IOC_WME_ACM:             /* WME: ACM (bss only) */
 962         case IEEE80211_IOC_WME_ACKPOLICY:       /* WME: ACK policy (bss only) */
 963                 error = ieee80211_ioctl_getwmeparam(vap, ireq);
 964                 break;
 965         case IEEE80211_IOC_DTIM_PERIOD:
 966                 ireq->i_val = vap->iv_dtim_period;
 967                 break;
 968         case IEEE80211_IOC_BEACON_INTERVAL:
 969                 /* NB: get from ic_bss for station mode */
 970                 ireq->i_val = vap->iv_bss->ni_intval;
 971                 break;
 972         case IEEE80211_IOC_PUREG:
 973                 ireq->i_val = (vap->iv_flags & IEEE80211_F_PUREG) != 0;
 974                 break;
 975         case IEEE80211_IOC_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         memset(&sr, 0, sizeof(sr));
1522         sr.sr_flags = IEEE80211_IOC_SCAN_ACTIVE | IEEE80211_IOC_SCAN_ONCE;
1523         sr.sr_duration = IEEE80211_IOC_SCAN_FOREVER;
1524         memcpy(sr.sr_ssid[0].ssid, ssid, ssid_len);
1525         sr.sr_ssid[0].len = ssid_len;
1526         sr.sr_nssid = 1;
1527
1528         return ieee80211_scanreq(vap, &sr);
1529 }
1530
1531 static __noinline int
1532 ieee80211_ioctl_setmlme(struct ieee80211vap *vap, struct ieee80211req *ireq)
1533 {
1534         struct ieee80211req_mlme mlme;
1535         int error;
1536
1537         if (ireq->i_len != sizeof(mlme))
1538                 return EINVAL;
1539         error = copyin(ireq->i_data, &mlme, sizeof(mlme));
1540         if (error)
1541                 return error;
1542         if  (vap->iv_opmode == IEEE80211_M_STA &&
1543             mlme.im_op == IEEE80211_MLME_ASSOC)
1544                 return setmlme_assoc_sta(vap, mlme.im_macaddr,
1545                     vap->iv_des_ssid[0].len, vap->iv_des_ssid[0].ssid);
1546         else if (mlme.im_op == IEEE80211_MLME_ASSOC)
1547                 return setmlme_assoc_adhoc(vap, mlme.im_macaddr,
1548                     mlme.im_ssid_len, mlme.im_ssid);
1549         else
1550                 return setmlme_common(vap, mlme.im_op,
1551                     mlme.im_macaddr, mlme.im_reason);
1552 }
1553
1554 static __noinline int
1555 ieee80211_ioctl_macmac(struct ieee80211vap *vap, struct ieee80211req *ireq)
1556 {
1557         uint8_t mac[IEEE80211_ADDR_LEN];
1558         const struct ieee80211_aclator *acl = vap->iv_acl;
1559         int error;
1560
1561         if (ireq->i_len != sizeof(mac))
1562                 return EINVAL;
1563         error = copyin(ireq->i_data, mac, ireq->i_len);
1564         if (error)
1565                 return error;
1566         if (acl == NULL) {
1567                 acl = ieee80211_aclator_get("mac");
1568                 if (acl == NULL || !acl->iac_attach(vap))
1569                         return EINVAL;
1570                 vap->iv_acl = acl;
1571         }
1572         if (ireq->i_type == IEEE80211_IOC_ADDMAC)
1573                 acl->iac_add(vap, mac);
1574         else
1575                 acl->iac_remove(vap, mac);
1576         return 0;
1577 }
1578
1579 static __noinline int
1580 ieee80211_ioctl_setmaccmd(struct ieee80211vap *vap, struct ieee80211req *ireq)
1581 {
1582         const struct ieee80211_aclator *acl = vap->iv_acl;
1583
1584         switch (ireq->i_val) {
1585         case IEEE80211_MACCMD_POLICY_OPEN:
1586         case IEEE80211_MACCMD_POLICY_ALLOW:
1587         case IEEE80211_MACCMD_POLICY_DENY:
1588         case IEEE80211_MACCMD_POLICY_RADIUS:
1589                 if (acl == NULL) {
1590                         acl = ieee80211_aclator_get("mac");
1591                         if (acl == NULL || !acl->iac_attach(vap))
1592                                 return EINVAL;
1593                         vap->iv_acl = acl;
1594                 }
1595                 acl->iac_setpolicy(vap, ireq->i_val);
1596                 break;
1597         case IEEE80211_MACCMD_FLUSH:
1598                 if (acl != NULL)
1599                         acl->iac_flush(vap);
1600                 /* NB: silently ignore when not in use */
1601                 break;
1602         case IEEE80211_MACCMD_DETACH:
1603                 if (acl != NULL) {
1604                         vap->iv_acl = NULL;
1605                         acl->iac_detach(vap);
1606                 }
1607                 break;
1608         default:
1609                 if (acl == NULL)
1610                         return EINVAL;
1611                 else
1612                         return acl->iac_setioctl(vap, ireq);
1613         }
1614         return 0;
1615 }
1616
1617 static __noinline int
1618 ieee80211_ioctl_setchanlist(struct ieee80211vap *vap, struct ieee80211req *ireq)
1619 {
1620         struct ieee80211com *ic = vap->iv_ic;
1621         uint8_t *chanlist, *list;
1622         int i, nchan, maxchan, error;
1623
1624         if (ireq->i_len > sizeof(ic->ic_chan_active))
1625                 ireq->i_len = sizeof(ic->ic_chan_active);
1626         list = malloc(ireq->i_len + IEEE80211_CHAN_BYTES, M_TEMP,
1627             M_NOWAIT | M_ZERO);
1628         if (list == NULL)
1629                 return ENOMEM;
1630         error = copyin(ireq->i_data, list, ireq->i_len);
1631         if (error) {
1632                 free(list, M_TEMP);
1633                 return error;
1634         }
1635         nchan = 0;
1636         chanlist = list + ireq->i_len;          /* NB: zero'd already */
1637         maxchan = ireq->i_len * NBBY;
1638         for (i = 0; i < ic->ic_nchans; i++) {
1639                 const struct ieee80211_channel *c = &ic->ic_channels[i];
1640                 /*
1641                  * Calculate the intersection of the user list and the
1642                  * available channels so users can do things like specify
1643                  * 1-255 to get all available channels.
1644                  */
1645                 if (c->ic_ieee < maxchan && isset(list, c->ic_ieee)) {
1646                         setbit(chanlist, c->ic_ieee);
1647                         nchan++;
1648                 }
1649         }
1650         if (nchan == 0) {
1651                 free(list, M_TEMP);
1652                 return EINVAL;
1653         }
1654         if (ic->ic_bsschan != IEEE80211_CHAN_ANYC &&    /* XXX */
1655             isclr(chanlist, ic->ic_bsschan->ic_ieee))
1656                 ic->ic_bsschan = IEEE80211_CHAN_ANYC;
1657         memcpy(ic->ic_chan_active, chanlist, IEEE80211_CHAN_BYTES);
1658         ieee80211_scan_flush(vap);
1659         free(list, M_TEMP);
1660         return ENETRESET;
1661 }
1662
1663 static __noinline int
1664 ieee80211_ioctl_setstastats(struct ieee80211vap *vap, struct ieee80211req *ireq)
1665 {
1666         struct ieee80211_node *ni;
1667         uint8_t macaddr[IEEE80211_ADDR_LEN];
1668         int error;
1669
1670         /*
1671          * NB: we could copyin ieee80211req_sta_stats so apps
1672          *     could make selective changes but that's overkill;
1673          *     just clear all stats for now.
1674          */
1675         if (ireq->i_len < IEEE80211_ADDR_LEN)
1676                 return EINVAL;
1677         error = copyin(ireq->i_data, macaddr, IEEE80211_ADDR_LEN);
1678         if (error != 0)
1679                 return error;
1680         ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap, macaddr);
1681         if (ni == NULL)
1682                 return ENOENT;
1683         /* XXX require ni_vap == vap? */
1684         memset(&ni->ni_stats, 0, sizeof(ni->ni_stats));
1685         ieee80211_free_node(ni);
1686         return 0;
1687 }
1688
1689 static __noinline int
1690 ieee80211_ioctl_setstatxpow(struct ieee80211vap *vap, struct ieee80211req *ireq)
1691 {
1692         struct ieee80211_node *ni;
1693         struct ieee80211req_sta_txpow txpow;
1694         int error;
1695
1696         if (ireq->i_len != sizeof(txpow))
1697                 return EINVAL;
1698         error = copyin(ireq->i_data, &txpow, sizeof(txpow));
1699         if (error != 0)
1700                 return error;
1701         ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap, txpow.it_macaddr);
1702         if (ni == NULL)
1703                 return ENOENT;
1704         ni->ni_txpower = txpow.it_txpow;
1705         ieee80211_free_node(ni);
1706         return error;
1707 }
1708
1709 static __noinline int
1710 ieee80211_ioctl_setwmeparam(struct ieee80211vap *vap, struct ieee80211req *ireq)
1711 {
1712         struct ieee80211com *ic = vap->iv_ic;
1713         struct ieee80211_wme_state *wme = &ic->ic_wme;
1714         struct wmeParams *wmep, *chanp;
1715         int isbss, ac;
1716
1717         if ((ic->ic_caps & IEEE80211_C_WME) == 0)
1718                 return EOPNOTSUPP;
1719
1720         isbss = (ireq->i_len & IEEE80211_WMEPARAM_BSS);
1721         ac = (ireq->i_len & IEEE80211_WMEPARAM_VAL);
1722         if (ac >= WME_NUM_AC)
1723                 ac = WME_AC_BE;
1724         if (isbss) {
1725                 chanp = &wme->wme_bssChanParams.cap_wmeParams[ac];
1726                 wmep = &wme->wme_wmeBssChanParams.cap_wmeParams[ac];
1727         } else {
1728                 chanp = &wme->wme_chanParams.cap_wmeParams[ac];
1729                 wmep = &wme->wme_wmeChanParams.cap_wmeParams[ac];
1730         }
1731         switch (ireq->i_type) {
1732         case IEEE80211_IOC_WME_CWMIN:           /* WME: CWmin */
1733                 if (isbss) {
1734                         wmep->wmep_logcwmin = ireq->i_val;
1735                         if ((wme->wme_flags & WME_F_AGGRMODE) == 0)
1736                                 chanp->wmep_logcwmin = ireq->i_val;
1737                 } else {
1738                         wmep->wmep_logcwmin = chanp->wmep_logcwmin =
1739                                 ireq->i_val;
1740                 }
1741                 break;
1742         case IEEE80211_IOC_WME_CWMAX:           /* WME: CWmax */
1743                 if (isbss) {
1744                         wmep->wmep_logcwmax = ireq->i_val;
1745                         if ((wme->wme_flags & WME_F_AGGRMODE) == 0)
1746                                 chanp->wmep_logcwmax = ireq->i_val;
1747                 } else {
1748                         wmep->wmep_logcwmax = chanp->wmep_logcwmax =
1749                                 ireq->i_val;
1750                 }
1751                 break;
1752         case IEEE80211_IOC_WME_AIFS:            /* WME: AIFS */
1753                 if (isbss) {
1754                         wmep->wmep_aifsn = ireq->i_val;
1755                         if ((wme->wme_flags & WME_F_AGGRMODE) == 0)
1756                                 chanp->wmep_aifsn = ireq->i_val;
1757                 } else {
1758                         wmep->wmep_aifsn = chanp->wmep_aifsn = ireq->i_val;
1759                 }
1760                 break;
1761         case IEEE80211_IOC_WME_TXOPLIMIT:       /* WME: txops limit */
1762                 if (isbss) {
1763                         wmep->wmep_txopLimit = ireq->i_val;
1764                         if ((wme->wme_flags & WME_F_AGGRMODE) == 0)
1765                                 chanp->wmep_txopLimit = ireq->i_val;
1766                 } else {
1767                         wmep->wmep_txopLimit = chanp->wmep_txopLimit =
1768                                 ireq->i_val;
1769                 }
1770                 break;
1771         case IEEE80211_IOC_WME_ACM:             /* WME: ACM (bss only) */
1772                 wmep->wmep_acm = ireq->i_val;
1773                 if ((wme->wme_flags & WME_F_AGGRMODE) == 0)
1774                         chanp->wmep_acm = ireq->i_val;
1775                 break;
1776         case IEEE80211_IOC_WME_ACKPOLICY:       /* WME: ACK policy (!bss only)*/
1777                 wmep->wmep_noackPolicy = chanp->wmep_noackPolicy =
1778                         (ireq->i_val) == 0;
1779                 break;
1780         }
1781         ieee80211_wme_updateparams(vap);
1782         return 0;
1783 }
1784
1785 static int
1786 find11gchannel(struct ieee80211com *ic, int start, int freq)
1787 {
1788         const struct ieee80211_channel *c;
1789         int i;
1790
1791         for (i = start+1; i < ic->ic_nchans; i++) {
1792                 c = &ic->ic_channels[i];
1793                 if (c->ic_freq == freq && IEEE80211_IS_CHAN_ANYG(c))
1794                         return 1;
1795         }
1796         /* NB: should not be needed but in case things are mis-sorted */
1797         for (i = 0; i < start; i++) {
1798                 c = &ic->ic_channels[i];
1799                 if (c->ic_freq == freq && IEEE80211_IS_CHAN_ANYG(c))
1800                         return 1;
1801         }
1802         return 0;
1803 }
1804
1805 static struct ieee80211_channel *
1806 findchannel(struct ieee80211com *ic, int ieee, int mode)
1807 {
1808         static const u_int chanflags[IEEE80211_MODE_MAX] = {
1809             [IEEE80211_MODE_AUTO]       = 0,
1810             [IEEE80211_MODE_11A]        = IEEE80211_CHAN_A,
1811             [IEEE80211_MODE_11B]        = IEEE80211_CHAN_B,
1812             [IEEE80211_MODE_11G]        = IEEE80211_CHAN_G,
1813             [IEEE80211_MODE_FH]         = IEEE80211_CHAN_FHSS,
1814             [IEEE80211_MODE_TURBO_A]    = IEEE80211_CHAN_108A,
1815             [IEEE80211_MODE_TURBO_G]    = IEEE80211_CHAN_108G,
1816             [IEEE80211_MODE_STURBO_A]   = IEEE80211_CHAN_STURBO,
1817             [IEEE80211_MODE_HALF]       = IEEE80211_CHAN_HALF,
1818             [IEEE80211_MODE_QUARTER]    = IEEE80211_CHAN_QUARTER,
1819             /* NB: handled specially below */
1820             [IEEE80211_MODE_11NA]       = IEEE80211_CHAN_A,
1821             [IEEE80211_MODE_11NG]       = IEEE80211_CHAN_G,
1822         };
1823         u_int modeflags;
1824         int i;
1825
1826         modeflags = chanflags[mode];
1827         for (i = 0; i < ic->ic_nchans; i++) {
1828                 struct ieee80211_channel *c = &ic->ic_channels[i];
1829
1830                 if (c->ic_ieee != ieee)
1831                         continue;
1832                 if (mode == IEEE80211_MODE_AUTO) {
1833                         /* ignore turbo channels for autoselect */
1834                         if (IEEE80211_IS_CHAN_TURBO(c))
1835                                 continue;
1836                         /*
1837                          * XXX special-case 11b/g channels so we
1838                          *     always select the g channel if both
1839                          *     are present.
1840                          * XXX prefer HT to non-HT?
1841                          */
1842                         if (!IEEE80211_IS_CHAN_B(c) ||
1843                             !find11gchannel(ic, i, c->ic_freq))
1844                                 return c;
1845                 } else {
1846                         /* must check HT specially */
1847                         if ((mode == IEEE80211_MODE_11NA ||
1848                             mode == IEEE80211_MODE_11NG) &&
1849                             !IEEE80211_IS_CHAN_HT(c))
1850                                 continue;
1851                         if ((c->ic_flags & modeflags) == modeflags)
1852                                 return c;
1853                 }
1854         }
1855         return NULL;
1856 }
1857
1858 /*
1859  * Check the specified against any desired mode (aka netband).
1860  * This is only used (presently) when operating in hostap mode
1861  * to enforce consistency.
1862  */
1863 static int
1864 check_mode_consistency(const struct ieee80211_channel *c, int mode)
1865 {
1866         KASSERT(c != IEEE80211_CHAN_ANYC, ("oops, no channel"));
1867
1868         switch (mode) {
1869         case IEEE80211_MODE_11B:
1870                 return (IEEE80211_IS_CHAN_B(c));
1871         case IEEE80211_MODE_11G:
1872                 return (IEEE80211_IS_CHAN_ANYG(c) && !IEEE80211_IS_CHAN_HT(c));
1873         case IEEE80211_MODE_11A:
1874                 return (IEEE80211_IS_CHAN_A(c) && !IEEE80211_IS_CHAN_HT(c));
1875         case IEEE80211_MODE_STURBO_A:
1876                 return (IEEE80211_IS_CHAN_STURBO(c));
1877         case IEEE80211_MODE_11NA:
1878                 return (IEEE80211_IS_CHAN_HTA(c));
1879         case IEEE80211_MODE_11NG:
1880                 return (IEEE80211_IS_CHAN_HTG(c));
1881         }
1882         return 1;
1883
1884 }
1885
1886 /*
1887  * Common code to set the current channel.  If the device
1888  * is up and running this may result in an immediate channel
1889  * change or a kick of the state machine.
1890  */
1891 static int
1892 setcurchan(struct ieee80211vap *vap, struct ieee80211_channel *c)
1893 {
1894         struct ieee80211com *ic = vap->iv_ic;
1895         int error;
1896
1897         if (c != IEEE80211_CHAN_ANYC) {
1898                 if (IEEE80211_IS_CHAN_RADAR(c))
1899                         return EBUSY;   /* XXX better code? */
1900                 if (vap->iv_opmode == IEEE80211_M_HOSTAP) {
1901                         if (IEEE80211_IS_CHAN_NOHOSTAP(c))
1902                                 return EINVAL;
1903                         if (!check_mode_consistency(c, vap->iv_des_mode))
1904                                 return EINVAL;
1905                 } else if (vap->iv_opmode == IEEE80211_M_IBSS) {
1906                         if (IEEE80211_IS_CHAN_NOADHOC(c))
1907                                 return EINVAL;
1908                 }
1909                 if (vap->iv_state == IEEE80211_S_RUN &&
1910                     vap->iv_bss->ni_chan == c)
1911                         return 0;       /* NB: nothing to do */
1912         }
1913         vap->iv_des_chan = c;
1914
1915         error = 0;
1916         if (vap->iv_opmode == IEEE80211_M_MONITOR &&
1917             vap->iv_des_chan != IEEE80211_CHAN_ANYC) {
1918                 /*
1919                  * Monitor mode can switch directly.
1920                  */
1921                 if (IFNET_IS_UP_RUNNING(vap->iv_ifp)) {
1922                         /* XXX need state machine for other vap's to follow */
1923                         ieee80211_setcurchan(ic, vap->iv_des_chan);
1924                         vap->iv_bss->ni_chan = ic->ic_curchan;
1925                 } else
1926                         ic->ic_curchan = vap->iv_des_chan;
1927                         ic->ic_rt = ieee80211_get_ratetable(ic->ic_curchan);
1928         } else {
1929                 /*
1930                  * Need to go through the state machine in case we
1931                  * need to reassociate or the like.  The state machine
1932                  * will pickup the desired channel and avoid scanning.
1933                  */
1934                 if (IS_UP_AUTO(vap))
1935                         ieee80211_new_state(vap, IEEE80211_S_SCAN, 0);
1936                 else if (vap->iv_des_chan != IEEE80211_CHAN_ANYC) {
1937                         /*
1938                          * When not up+running and a real channel has
1939                          * been specified fix the current channel so
1940                          * there is immediate feedback; e.g. via ifconfig.
1941                          */
1942                         ic->ic_curchan = vap->iv_des_chan;
1943                         ic->ic_rt = ieee80211_get_ratetable(ic->ic_curchan);
1944                 }
1945         }
1946         return error;
1947 }
1948
1949 /*
1950  * Old api for setting the current channel; this is
1951  * deprecated because channel numbers are ambiguous.
1952  */
1953 static __noinline int
1954 ieee80211_ioctl_setchannel(struct ieee80211vap *vap,
1955         const struct ieee80211req *ireq)
1956 {
1957         struct ieee80211com *ic = vap->iv_ic;
1958         struct ieee80211_channel *c;
1959
1960         /* XXX 0xffff overflows 16-bit signed */
1961         if (ireq->i_val == 0 ||
1962             ireq->i_val == (int16_t) IEEE80211_CHAN_ANY) {
1963                 c = IEEE80211_CHAN_ANYC;
1964         } else {
1965                 struct ieee80211_channel *c2;
1966
1967                 c = findchannel(ic, ireq->i_val, vap->iv_des_mode);
1968                 if (c == NULL) {
1969                         c = findchannel(ic, ireq->i_val,
1970                                 IEEE80211_MODE_AUTO);
1971                         if (c == NULL)
1972                                 return EINVAL;
1973                 }
1974                 /*
1975                  * Fine tune channel selection based on desired mode:
1976                  *   if 11b is requested, find the 11b version of any
1977                  *      11g channel returned,
1978                  *   if static turbo, find the turbo version of any
1979                  *      11a channel return,
1980                  *   if 11na is requested, find the ht version of any
1981                  *      11a channel returned,
1982                  *   if 11ng is requested, find the ht version of any
1983                  *      11g channel returned,
1984                  *   otherwise we should be ok with what we've got.
1985                  */
1986                 switch (vap->iv_des_mode) {
1987                 case IEEE80211_MODE_11B:
1988                         if (IEEE80211_IS_CHAN_ANYG(c)) {
1989                                 c2 = findchannel(ic, ireq->i_val,
1990                                         IEEE80211_MODE_11B);
1991                                 /* NB: should not happen, =>'s 11g w/o 11b */
1992                                 if (c2 != NULL)
1993                                         c = c2;
1994                         }
1995                         break;
1996                 case IEEE80211_MODE_TURBO_A:
1997                         if (IEEE80211_IS_CHAN_A(c)) {
1998                                 c2 = findchannel(ic, ireq->i_val,
1999                                         IEEE80211_MODE_TURBO_A);
2000                                 if (c2 != NULL)
2001                                         c = c2;
2002                         }
2003                         break;
2004                 case IEEE80211_MODE_11NA:
2005                         if (IEEE80211_IS_CHAN_A(c)) {
2006                                 c2 = findchannel(ic, ireq->i_val,
2007                                         IEEE80211_MODE_11NA);
2008                                 if (c2 != NULL)
2009                                         c = c2;
2010                         }
2011                         break;
2012                 case IEEE80211_MODE_11NG:
2013                         if (IEEE80211_IS_CHAN_ANYG(c)) {
2014                                 c2 = findchannel(ic, ireq->i_val,
2015                                         IEEE80211_MODE_11NG);
2016                                 if (c2 != NULL)
2017                                         c = c2;
2018                         }
2019                         break;
2020                 default:                /* NB: no static turboG */
2021                         break;
2022                 }
2023         }
2024         return setcurchan(vap, c);
2025 }
2026
2027 /*
2028  * New/current api for setting the current channel; a complete
2029  * channel description is provide so there is no ambiguity in
2030  * identifying the channel.
2031  */
2032 static __noinline int
2033 ieee80211_ioctl_setcurchan(struct ieee80211vap *vap,
2034         const struct ieee80211req *ireq)
2035 {
2036         struct ieee80211com *ic = vap->iv_ic;
2037         struct ieee80211_channel chan, *c;
2038         int error;
2039
2040         if (ireq->i_len != sizeof(chan))
2041                 return EINVAL;
2042         error = copyin(ireq->i_data, &chan, sizeof(chan));
2043         if (error != 0)
2044                 return error;
2045         /* XXX 0xffff overflows 16-bit signed */
2046         if (chan.ic_freq == 0 || chan.ic_freq == IEEE80211_CHAN_ANY) {
2047                 c = IEEE80211_CHAN_ANYC;
2048         } else {
2049                 c = ieee80211_find_channel(ic, chan.ic_freq, chan.ic_flags);
2050                 if (c == NULL)
2051                         return EINVAL;
2052         }
2053         return setcurchan(vap, c);
2054 }
2055
2056 static __noinline int
2057 ieee80211_ioctl_setregdomain(struct ieee80211vap *vap,
2058         const struct ieee80211req *ireq)
2059 {
2060         struct ieee80211_regdomain_req *reg;
2061         int nchans, error;
2062
2063         nchans = 1 + ((ireq->i_len - sizeof(struct ieee80211_regdomain_req)) /
2064             sizeof(struct ieee80211_channel));
2065         if (!(1 <= nchans && nchans <= IEEE80211_CHAN_MAX)) {
2066                 IEEE80211_DPRINTF(vap, IEEE80211_MSG_IOCTL,
2067                     "%s: bad # chans, i_len %d nchans %d\n", __func__,
2068                     ireq->i_len, nchans);
2069                 return EINVAL;
2070         }
2071         reg = (struct ieee80211_regdomain_req *)
2072             malloc(IEEE80211_REGDOMAIN_SIZE(nchans), M_TEMP, M_NOWAIT);
2073         if (reg == NULL) {
2074                 IEEE80211_DPRINTF(vap, IEEE80211_MSG_IOCTL,
2075                     "%s: no memory, nchans %d\n", __func__, nchans);
2076                 return ENOMEM;
2077         }
2078         error = copyin(ireq->i_data, reg, IEEE80211_REGDOMAIN_SIZE(nchans));
2079         if (error == 0) {
2080                 /* NB: validate inline channel count against storage size */
2081                 if (reg->chaninfo.ic_nchans != nchans) {
2082                         IEEE80211_DPRINTF(vap, IEEE80211_MSG_IOCTL,
2083                             "%s: chan cnt mismatch, %d != %d\n", __func__,
2084                                 reg->chaninfo.ic_nchans, nchans);
2085                         error = EINVAL;
2086                 } else
2087                         error = ieee80211_setregdomain(vap, reg);
2088         }
2089         free(reg, M_TEMP);
2090
2091         return (error == 0 ? ENETRESET : error);
2092 }
2093
2094 static int
2095 ieee80211_ioctl_setroam(struct ieee80211vap *vap,
2096         const struct ieee80211req *ireq)
2097 {
2098         if (ireq->i_len != sizeof(vap->iv_roamparms))
2099                 return EINVAL;
2100         /* XXX validate params */
2101         /* XXX? ENETRESET to push to device? */
2102         return copyin(ireq->i_data, vap->iv_roamparms,
2103             sizeof(vap->iv_roamparms));
2104 }
2105
2106 static int
2107 checkrate(const struct ieee80211_rateset *rs, int rate)
2108 {
2109         int i;
2110
2111         if (rate == IEEE80211_FIXED_RATE_NONE)
2112                 return 1;
2113         for (i = 0; i < rs->rs_nrates; i++)
2114                 if ((rs->rs_rates[i] & IEEE80211_RATE_VAL) == rate)
2115                         return 1;
2116         return 0;
2117 }
2118
2119 static int
2120 checkmcs(int mcs)
2121 {
2122         if (mcs == IEEE80211_FIXED_RATE_NONE)
2123                 return 1;
2124         if ((mcs & IEEE80211_RATE_MCS) == 0)    /* MCS always have 0x80 set */
2125                 return 0;
2126         return (mcs & 0x7f) <= 15;      /* XXX could search ht rate set */
2127 }
2128
2129 static __noinline int
2130 ieee80211_ioctl_settxparams(struct ieee80211vap *vap,
2131         const struct ieee80211req *ireq)
2132 {
2133         struct ieee80211com *ic = vap->iv_ic;
2134         struct ieee80211_txparams_req parms;    /* XXX stack use? */
2135         struct ieee80211_txparam *src, *dst;
2136         const struct ieee80211_rateset *rs;
2137         int error, mode, changed, is11n, nmodes;
2138
2139         /* NB: accept short requests for backwards compat */
2140         if (ireq->i_len > sizeof(parms))
2141                 return EINVAL;
2142         error = copyin(ireq->i_data, &parms, ireq->i_len);
2143         if (error != 0)
2144                 return error;
2145         nmodes = ireq->i_len / sizeof(struct ieee80211_txparam);
2146         changed = 0;
2147         /* validate parameters and check if anything changed */
2148         for (mode = IEEE80211_MODE_11A; mode < nmodes; mode++) {
2149                 if (isclr(ic->ic_modecaps, mode))
2150                         continue;
2151                 src = &parms.params[mode];
2152                 dst = &vap->iv_txparms[mode];
2153                 rs = &ic->ic_sup_rates[mode];   /* NB: 11n maps to legacy */
2154                 is11n = (mode == IEEE80211_MODE_11NA ||
2155                          mode == IEEE80211_MODE_11NG);
2156                 if (src->ucastrate != dst->ucastrate) {
2157                         if (!checkrate(rs, src->ucastrate) &&
2158                             (!is11n || !checkmcs(src->ucastrate)))
2159                                 return EINVAL;
2160                         changed++;
2161                 }
2162                 if (src->mcastrate != dst->mcastrate) {
2163                         if (!checkrate(rs, src->mcastrate) &&
2164                             (!is11n || !checkmcs(src->mcastrate)))
2165                                 return EINVAL;
2166                         changed++;
2167                 }
2168                 if (src->mgmtrate != dst->mgmtrate) {
2169                         if (!checkrate(rs, src->mgmtrate) &&
2170                             (!is11n || !checkmcs(src->mgmtrate)))
2171                                 return EINVAL;
2172                         changed++;
2173                 }
2174                 if (src->maxretry != dst->maxretry)     /* NB: no bounds */
2175                         changed++;
2176         }
2177         if (changed) {
2178                 /*
2179                  * Copy new parameters in place and notify the
2180                  * driver so it can push state to the device.
2181                  */
2182                 for (mode = IEEE80211_MODE_11A; mode < nmodes; mode++) {
2183                         if (isset(ic->ic_modecaps, mode))
2184                                 vap->iv_txparms[mode] = parms.params[mode];
2185                 }
2186                 /* XXX could be more intelligent,
2187                    e.g. don't reset if setting not being used */
2188                 return ENETRESET;
2189         }
2190         return 0;
2191 }
2192
2193 /*
2194  * Application Information Element support.
2195  */
2196 static int
2197 setappie(struct ieee80211_appie **aie, const struct ieee80211req *ireq)
2198 {
2199         struct ieee80211_appie *app = *aie;
2200         struct ieee80211_appie *napp;
2201         int error;
2202
2203         if (ireq->i_len == 0) {         /* delete any existing ie */
2204                 if (app != NULL) {
2205                         *aie = NULL;    /* XXX racey */
2206                         free(app, M_80211_NODE_IE);
2207                 }
2208                 return 0;
2209         }
2210         if (!(2 <= ireq->i_len && ireq->i_len <= IEEE80211_MAX_APPIE))
2211                 return EINVAL;
2212         /*
2213          * Allocate a new appie structure and copy in the user data.
2214          * When done swap in the new structure.  Note that we do not
2215          * guard against users holding a ref to the old structure;
2216          * this must be handled outside this code.
2217          *
2218          * XXX bad bad bad
2219          */
2220         napp = (struct ieee80211_appie *) malloc(
2221             sizeof(struct ieee80211_appie) + ireq->i_len, M_80211_NODE_IE, M_NOWAIT);
2222         if (napp == NULL)
2223                 return ENOMEM;
2224         /* XXX holding ic lock */
2225         error = copyin(ireq->i_data, napp->ie_data, ireq->i_len);
2226         if (error) {
2227                 free(napp, M_80211_NODE_IE);
2228                 return error;
2229         }
2230         napp->ie_len = ireq->i_len;
2231         *aie = napp;
2232         if (app != NULL)
2233                 free(app, M_80211_NODE_IE);
2234         return 0;
2235 }
2236
2237 static void
2238 setwparsnie(struct ieee80211vap *vap, uint8_t *ie, int space)
2239 {
2240         /* validate data is present as best we can */
2241         if (space == 0 || 2+ie[1] > space)
2242                 return;
2243         if (ie[0] == IEEE80211_ELEMID_VENDOR)
2244                 vap->iv_wpa_ie = ie;
2245         else if (ie[0] == IEEE80211_ELEMID_RSN)
2246                 vap->iv_rsn_ie = ie;
2247 }
2248
2249 static __noinline int
2250 ieee80211_ioctl_setappie_locked(struct ieee80211vap *vap,
2251         const struct ieee80211req *ireq, int fc0)
2252 {
2253         int error;
2254
2255         IEEE80211_LOCK_ASSERT(vap->iv_ic);
2256
2257         switch (fc0 & IEEE80211_FC0_SUBTYPE_MASK) {
2258         case IEEE80211_FC0_SUBTYPE_BEACON:
2259                 if (vap->iv_opmode != IEEE80211_M_HOSTAP &&
2260                     vap->iv_opmode != IEEE80211_M_IBSS) {
2261                         error = EINVAL;
2262                         break;
2263                 }
2264                 error = setappie(&vap->iv_appie_beacon, ireq);
2265                 if (error == 0)
2266                         ieee80211_beacon_notify(vap, IEEE80211_BEACON_APPIE);
2267                 break;
2268         case IEEE80211_FC0_SUBTYPE_PROBE_RESP:
2269                 error = setappie(&vap->iv_appie_proberesp, ireq);
2270                 break;
2271         case IEEE80211_FC0_SUBTYPE_ASSOC_RESP:
2272                 if (vap->iv_opmode == IEEE80211_M_HOSTAP)
2273                         error = setappie(&vap->iv_appie_assocresp, ireq);
2274                 else
2275                         error = EINVAL;
2276                 break;
2277         case IEEE80211_FC0_SUBTYPE_PROBE_REQ:
2278                 error = setappie(&vap->iv_appie_probereq, ireq);
2279                 break;
2280         case IEEE80211_FC0_SUBTYPE_ASSOC_REQ:
2281                 if (vap->iv_opmode == IEEE80211_M_STA)
2282                         error = setappie(&vap->iv_appie_assocreq, ireq);
2283                 else
2284                         error = EINVAL;
2285                 break;
2286         case (IEEE80211_APPIE_WPA & IEEE80211_FC0_SUBTYPE_MASK):
2287                 error = setappie(&vap->iv_appie_wpa, ireq);
2288                 if (error == 0) {
2289                         /*
2290                          * Must split single blob of data into separate
2291                          * WPA and RSN ie's because they go in different
2292                          * locations in the mgt frames.
2293                          * XXX use IEEE80211_IOC_WPA2 so user code does split
2294                          */
2295                         vap->iv_wpa_ie = NULL;
2296                         vap->iv_rsn_ie = NULL;
2297                         if (vap->iv_appie_wpa != NULL) {
2298                                 struct ieee80211_appie *appie =
2299                                     vap->iv_appie_wpa;
2300                                 uint8_t *data = appie->ie_data;
2301
2302                                 /* XXX ie length validate is painful, cheat */
2303                                 setwparsnie(vap, data, appie->ie_len);
2304                                 setwparsnie(vap, data + 2 + data[1],
2305                                     appie->ie_len - (2 + data[1]));
2306                         }
2307                         if (vap->iv_opmode == IEEE80211_M_HOSTAP ||
2308                             vap->iv_opmode == IEEE80211_M_IBSS) {
2309                                 /*
2310                                  * Must rebuild beacon frame as the update
2311                                  * mechanism doesn't handle WPA/RSN ie's.
2312                                  * Could extend it but it doesn't normally
2313                                  * change; this is just to deal with hostapd
2314                                  * plumbing the ie after the interface is up.
2315                                  */
2316                                 error = ENETRESET;
2317                         }
2318                 }
2319                 break;
2320         default:
2321                 error = EINVAL;
2322                 break;
2323         }
2324         return error;
2325 }
2326
2327 static __noinline int
2328 ieee80211_ioctl_setappie(struct ieee80211vap *vap,
2329         const struct ieee80211req *ireq)
2330 {
2331         struct ieee80211com *ic = vap->iv_ic;
2332         int error;
2333         uint8_t fc0;
2334
2335         fc0 = ireq->i_val & 0xff;
2336         if ((fc0 & IEEE80211_FC0_TYPE_MASK) != IEEE80211_FC0_TYPE_MGT)
2337                 return EINVAL;
2338         /* NB: could check iv_opmode and reject but hardly worth the effort */
2339         IEEE80211_LOCK(ic);
2340         error = ieee80211_ioctl_setappie_locked(vap, ireq, fc0);
2341         IEEE80211_UNLOCK(ic);
2342         return error;
2343 }
2344
2345 static __noinline int
2346 ieee80211_ioctl_chanswitch(struct ieee80211vap *vap, struct ieee80211req *ireq)
2347 {
2348         struct ieee80211com *ic = vap->iv_ic;
2349         struct ieee80211_chanswitch_req csr;
2350         struct ieee80211_channel *c;
2351         int error;
2352
2353         if (ireq->i_len != sizeof(csr))
2354                 return EINVAL;
2355         error = copyin(ireq->i_data, &csr, sizeof(csr));
2356         if (error != 0)
2357                 return error;
2358         /* XXX adhoc mode not supported */
2359         if (vap->iv_opmode != IEEE80211_M_HOSTAP ||
2360             (vap->iv_flags & IEEE80211_F_DOTH) == 0)
2361                 return EOPNOTSUPP;
2362         c = ieee80211_find_channel(ic,
2363             csr.csa_chan.ic_freq, csr.csa_chan.ic_flags);
2364         if (c == NULL)
2365                 return ENOENT;
2366         IEEE80211_LOCK(ic);
2367         if ((ic->ic_flags & IEEE80211_F_CSAPENDING) == 0)
2368                 ieee80211_csa_startswitch(ic, c, csr.csa_mode, csr.csa_count);
2369         else if (csr.csa_count == 0)
2370                 ieee80211_csa_cancelswitch(ic);
2371         else
2372                 error = EBUSY;
2373         IEEE80211_UNLOCK(ic);
2374         return error;
2375 }
2376
2377 static int
2378 ieee80211_scanreq(struct ieee80211vap *vap, struct ieee80211_scan_req *sr)
2379 {
2380 #define IEEE80211_IOC_SCAN_FLAGS \
2381         (IEEE80211_IOC_SCAN_NOPICK | IEEE80211_IOC_SCAN_ACTIVE | \
2382          IEEE80211_IOC_SCAN_PICK1ST | IEEE80211_IOC_SCAN_BGSCAN | \
2383          IEEE80211_IOC_SCAN_ONCE | IEEE80211_IOC_SCAN_NOBCAST | \
2384          IEEE80211_IOC_SCAN_NOJOIN | IEEE80211_IOC_SCAN_FLUSH | \
2385          IEEE80211_IOC_SCAN_CHECK)
2386         struct ieee80211com *ic = vap->iv_ic;
2387         int error, i;
2388
2389         /* convert duration */
2390         if (sr->sr_duration == IEEE80211_IOC_SCAN_FOREVER)
2391                 sr->sr_duration = IEEE80211_SCAN_FOREVER;
2392         else {
2393                 if (sr->sr_duration < IEEE80211_IOC_SCAN_DURATION_MIN ||
2394                     sr->sr_duration > IEEE80211_IOC_SCAN_DURATION_MAX)
2395                         return EINVAL;
2396                 sr->sr_duration = msecs_to_ticks(sr->sr_duration);
2397                 if (sr->sr_duration < 1)
2398                         sr->sr_duration = 1;
2399         }
2400         /* convert min/max channel dwell */
2401         if (sr->sr_mindwell != 0) {
2402                 sr->sr_mindwell = msecs_to_ticks(sr->sr_mindwell);
2403                 if (sr->sr_mindwell < 1)
2404                         sr->sr_mindwell = 1;
2405         }
2406         if (sr->sr_maxdwell != 0) {
2407                 sr->sr_maxdwell = msecs_to_ticks(sr->sr_maxdwell);
2408                 if (sr->sr_maxdwell < 1)
2409                         sr->sr_maxdwell = 1;
2410         }
2411         /* NB: silently reduce ssid count to what is supported */
2412         if (sr->sr_nssid > IEEE80211_SCAN_MAX_SSID)
2413                 sr->sr_nssid = IEEE80211_SCAN_MAX_SSID;
2414         for (i = 0; i < sr->sr_nssid; i++)
2415                 if (sr->sr_ssid[i].len > IEEE80211_NWID_LEN)
2416                         return EINVAL;
2417         /* cleanse flags just in case, could reject if invalid flags */
2418         sr->sr_flags &= IEEE80211_IOC_SCAN_FLAGS;
2419         /*
2420          * Add an implicit NOPICK if the vap is not marked UP.  This
2421          * allows applications to scan without joining a bss (or picking
2422          * a channel and setting up a bss) and without forcing manual
2423          * roaming mode--you just need to mark the parent device UP.
2424          */
2425         if ((vap->iv_ifp->if_flags & IFF_UP) == 0)
2426                 sr->sr_flags |= IEEE80211_IOC_SCAN_NOPICK;
2427
2428         IEEE80211_DPRINTF(vap, IEEE80211_MSG_SCAN,
2429             "%s: flags 0x%x%s duration 0x%x mindwell %u maxdwell %u nssid %d\n",
2430             __func__, sr->sr_flags,
2431             (vap->iv_ifp->if_flags & IFF_UP) == 0 ? " (!IFF_UP)" : "",
2432             sr->sr_duration, sr->sr_mindwell, sr->sr_maxdwell, sr->sr_nssid);
2433         /*
2434          * If we are in INIT state then the driver has never had a chance
2435          * to setup hardware state to do a scan; we must use the state
2436          * machine to get us up to the SCAN state but once we reach SCAN
2437          * state we then want to use the supplied params.  Stash the
2438          * parameters in the vap and mark IEEE80211_FEXT_SCANREQ; the
2439          * state machines will recognize this and use the stashed params
2440          * to issue the scan request.
2441          *
2442          * Otherwise just invoke the scan machinery directly.
2443          */
2444         IEEE80211_LOCK(ic);
2445         if (vap->iv_state == IEEE80211_S_INIT) {
2446                 /* NB: clobbers previous settings */
2447                 vap->iv_scanreq_flags = sr->sr_flags;
2448                 vap->iv_scanreq_duration = sr->sr_duration;
2449                 vap->iv_scanreq_nssid = sr->sr_nssid;
2450                 for (i = 0; i < sr->sr_nssid; i++) {
2451                         vap->iv_scanreq_ssid[i].len = sr->sr_ssid[i].len;
2452                         memcpy(vap->iv_scanreq_ssid[i].ssid,
2453                             sr->sr_ssid[i].ssid, sr->sr_ssid[i].len);
2454                 }
2455                 vap->iv_flags_ext |= IEEE80211_FEXT_SCANREQ;
2456                 IEEE80211_UNLOCK(ic);
2457                 ieee80211_new_state(vap, IEEE80211_S_SCAN, 0);
2458         } else {
2459                 vap->iv_flags_ext &= ~IEEE80211_FEXT_SCANREQ;
2460                 IEEE80211_UNLOCK(ic);
2461                 if (sr->sr_flags & IEEE80211_IOC_SCAN_CHECK) {
2462                         error = ieee80211_check_scan(vap, sr->sr_flags,
2463                             sr->sr_duration, sr->sr_mindwell, sr->sr_maxdwell,
2464                             sr->sr_nssid,
2465                             /* NB: cheat, we assume structures are compatible */
2466                             (const struct ieee80211_scan_ssid *) &sr->sr_ssid[0]);
2467                 } else {
2468                         error = ieee80211_start_scan(vap, sr->sr_flags,
2469                             sr->sr_duration, sr->sr_mindwell, sr->sr_maxdwell,
2470                             sr->sr_nssid,
2471                             /* NB: cheat, we assume structures are compatible */
2472                             (const struct ieee80211_scan_ssid *) &sr->sr_ssid[0]);
2473                 }
2474                 if (error == 0)
2475                         return EINPROGRESS;
2476         }
2477         return 0;
2478 #undef IEEE80211_IOC_SCAN_FLAGS
2479 }
2480
2481 static __noinline int
2482 ieee80211_ioctl_scanreq(struct ieee80211vap *vap, struct ieee80211req *ireq)
2483 {
2484         struct ieee80211com *ic = vap->iv_ic;
2485         struct ieee80211_scan_req sr;           /* XXX off stack? */
2486         int error;
2487
2488         /* NB: parent must be running */
2489         if ((ic->ic_ifp->if_drv_flags & IFF_DRV_RUNNING) == 0)
2490                 return ENXIO;
2491
2492         if (ireq->i_len != sizeof(sr))
2493                 return EINVAL;
2494         error = copyin(ireq->i_data, &sr, sizeof(sr));
2495         if (error != 0)
2496                 return error;
2497         return ieee80211_scanreq(vap, &sr);
2498 }
2499
2500 static __noinline int
2501 ieee80211_ioctl_setstavlan(struct ieee80211vap *vap, struct ieee80211req *ireq)
2502 {
2503         struct ieee80211_node *ni;
2504         struct ieee80211req_sta_vlan vlan;
2505         int error;
2506
2507         if (ireq->i_len != sizeof(vlan))
2508                 return EINVAL;
2509         error = copyin(ireq->i_data, &vlan, sizeof(vlan));
2510         if (error != 0)
2511                 return error;
2512         if (!IEEE80211_ADDR_EQ(vlan.sv_macaddr, zerobssid)) {
2513                 ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap,
2514                     vlan.sv_macaddr);
2515                 if (ni == NULL)
2516                         return ENOENT;
2517         } else
2518                 ni = ieee80211_ref_node(vap->iv_bss);
2519         ni->ni_vlan = vlan.sv_vlan;
2520         ieee80211_free_node(ni);
2521         return error;
2522 }
2523
2524 static int
2525 isvap11g(const struct ieee80211vap *vap)
2526 {
2527         const struct ieee80211_node *bss = vap->iv_bss;
2528         return bss->ni_chan != IEEE80211_CHAN_ANYC &&
2529             IEEE80211_IS_CHAN_ANYG(bss->ni_chan);
2530 }
2531
2532 static int
2533 isvapht(const struct ieee80211vap *vap)
2534 {
2535         const struct ieee80211_node *bss = vap->iv_bss;
2536         return bss->ni_chan != IEEE80211_CHAN_ANYC &&
2537             IEEE80211_IS_CHAN_HT(bss->ni_chan);
2538 }
2539
2540 /*
2541  * Dummy ioctl set handler so the linker set is defined.
2542  */
2543 static int
2544 dummy_ioctl_set(struct ieee80211vap *vap, struct ieee80211req *ireq)
2545 {
2546         return ENOSYS;
2547 }
2548 IEEE80211_IOCTL_SET(dummy, dummy_ioctl_set);
2549
2550 static int
2551 ieee80211_ioctl_setdefault(struct ieee80211vap *vap, struct ieee80211req *ireq)
2552 {
2553         ieee80211_ioctl_setfunc * const *set;
2554         int error;
2555
2556         SET_FOREACH(set, ieee80211_ioctl_setset) {
2557                 error = (*set)(vap, ireq);
2558                 if (error != ENOSYS)
2559                         return error;
2560         }
2561         return EINVAL;
2562 }
2563
2564 static __noinline int
2565 ieee80211_ioctl_set80211(struct ieee80211vap *vap, u_long cmd, struct ieee80211req *ireq)
2566 {
2567         struct ieee80211com *ic = vap->iv_ic;
2568         int error;
2569         const struct ieee80211_authenticator *auth;
2570         uint8_t tmpkey[IEEE80211_KEYBUF_SIZE];
2571         char tmpssid[IEEE80211_NWID_LEN];
2572         uint8_t tmpbssid[IEEE80211_ADDR_LEN];
2573         struct ieee80211_key *k;
2574         u_int kid;
2575         uint32_t flags;
2576
2577         error = 0;
2578         switch (ireq->i_type) {
2579         case IEEE80211_IOC_SSID:
2580                 if (ireq->i_val != 0 ||
2581                     ireq->i_len > IEEE80211_NWID_LEN)
2582                         return EINVAL;
2583                 error = copyin(ireq->i_data, tmpssid, ireq->i_len);
2584                 if (error)
2585                         break;
2586                 memset(vap->iv_des_ssid[0].ssid, 0, IEEE80211_NWID_LEN);
2587                 vap->iv_des_ssid[0].len = ireq->i_len;
2588                 memcpy(vap->iv_des_ssid[0].ssid, tmpssid, ireq->i_len);
2589                 vap->iv_des_nssid = (ireq->i_len > 0);
2590                 error = ENETRESET;
2591                 break;
2592         case IEEE80211_IOC_WEP:
2593                 switch (ireq->i_val) {
2594                 case IEEE80211_WEP_OFF:
2595                         vap->iv_flags &= ~IEEE80211_F_PRIVACY;
2596                         vap->iv_flags &= ~IEEE80211_F_DROPUNENC;
2597                         break;
2598                 case IEEE80211_WEP_ON:
2599                         vap->iv_flags |= IEEE80211_F_PRIVACY;
2600                         vap->iv_flags |= IEEE80211_F_DROPUNENC;
2601                         break;
2602                 case IEEE80211_WEP_MIXED:
2603                         vap->iv_flags |= IEEE80211_F_PRIVACY;
2604                         vap->iv_flags &= ~IEEE80211_F_DROPUNENC;
2605                         break;
2606                 }
2607                 error = ENETRESET;
2608                 break;
2609         case IEEE80211_IOC_WEPKEY:
2610                 kid = (u_int) ireq->i_val;
2611                 if (kid >= IEEE80211_WEP_NKID)
2612                         return EINVAL;
2613                 k = &vap->iv_nw_keys[kid];
2614                 if (ireq->i_len == 0) {
2615                         /* zero-len =>'s delete any existing key */
2616                         (void) ieee80211_crypto_delkey(vap, k);
2617                         break;
2618                 }
2619                 if (ireq->i_len > sizeof(tmpkey))
2620                         return EINVAL;
2621                 memset(tmpkey, 0, sizeof(tmpkey));
2622                 error = copyin(ireq->i_data, tmpkey, ireq->i_len);
2623                 if (error)
2624                         break;
2625                 ieee80211_key_update_begin(vap);
2626                 k->wk_keyix = kid;      /* NB: force fixed key id */
2627                 if (ieee80211_crypto_newkey(vap, IEEE80211_CIPHER_WEP,
2628                     IEEE80211_KEY_XMIT | IEEE80211_KEY_RECV, k)) {
2629                         k->wk_keylen = ireq->i_len;
2630                         memcpy(k->wk_key, tmpkey, sizeof(tmpkey));
2631                         IEEE80211_ADDR_COPY(k->wk_macaddr, vap->iv_myaddr);
2632                         if  (!ieee80211_crypto_setkey(vap, k))
2633                                 error = EINVAL;
2634                 } else
2635                         error = EINVAL;
2636                 ieee80211_key_update_end(vap);
2637                 break;
2638         case IEEE80211_IOC_WEPTXKEY:
2639                 kid = (u_int) ireq->i_val;
2640                 if (kid >= IEEE80211_WEP_NKID &&
2641                     (uint16_t) kid != IEEE80211_KEYIX_NONE)
2642                         return EINVAL;
2643                 vap->iv_def_txkey = kid;
2644                 break;
2645         case IEEE80211_IOC_AUTHMODE:
2646                 switch (ireq->i_val) {
2647                 case IEEE80211_AUTH_WPA:
2648                 case IEEE80211_AUTH_8021X:      /* 802.1x */
2649                 case IEEE80211_AUTH_OPEN:       /* open */
2650                 case IEEE80211_AUTH_SHARED:     /* shared-key */
2651                 case IEEE80211_AUTH_AUTO:       /* auto */
2652                         auth = ieee80211_authenticator_get(ireq->i_val);
2653                         if (auth == NULL)
2654                                 return EINVAL;
2655                         break;
2656                 default:
2657                         return EINVAL;
2658                 }
2659                 switch (ireq->i_val) {
2660                 case IEEE80211_AUTH_WPA:        /* WPA w/ 802.1x */
2661                         vap->iv_flags |= IEEE80211_F_PRIVACY;
2662                         ireq->i_val = IEEE80211_AUTH_8021X;
2663                         break;
2664                 case IEEE80211_AUTH_OPEN:       /* open */
2665                         vap->iv_flags &= ~(IEEE80211_F_WPA|IEEE80211_F_PRIVACY);
2666                         break;
2667                 case IEEE80211_AUTH_SHARED:     /* shared-key */
2668                 case IEEE80211_AUTH_8021X:      /* 802.1x */
2669                         vap->iv_flags &= ~IEEE80211_F_WPA;
2670                         /* both require a key so mark the PRIVACY capability */
2671                         vap->iv_flags |= IEEE80211_F_PRIVACY;
2672                         break;
2673                 case IEEE80211_AUTH_AUTO:       /* auto */
2674                         vap->iv_flags &= ~IEEE80211_F_WPA;
2675                         /* XXX PRIVACY handling? */
2676                         /* XXX what's the right way to do this? */
2677                         break;
2678                 }
2679                 /* NB: authenticator attach/detach happens on state change */
2680                 vap->iv_bss->ni_authmode = ireq->i_val;
2681                 /* XXX mixed/mode/usage? */
2682                 vap->iv_auth = auth;
2683                 error = ENETRESET;
2684                 break;
2685         case IEEE80211_IOC_CHANNEL:
2686                 error = ieee80211_ioctl_setchannel(vap, ireq);
2687                 break;
2688         case IEEE80211_IOC_POWERSAVE:
2689                 switch (ireq->i_val) {
2690                 case IEEE80211_POWERSAVE_OFF:
2691                         if (vap->iv_flags & IEEE80211_F_PMGTON) {
2692                                 ieee80211_syncflag(vap, -IEEE80211_F_PMGTON);
2693                                 error = ERESTART;
2694                         }
2695                         break;
2696                 case IEEE80211_POWERSAVE_ON:
2697                         if ((vap->iv_caps & IEEE80211_C_PMGT) == 0)
2698                                 error = EOPNOTSUPP;
2699                         else if ((vap->iv_flags & IEEE80211_F_PMGTON) == 0) {
2700                                 ieee80211_syncflag(vap, IEEE80211_F_PMGTON);
2701                                 error = ERESTART;
2702                         }
2703                         break;
2704                 default:
2705                         error = EINVAL;
2706                         break;
2707                 }
2708                 break;
2709         case IEEE80211_IOC_POWERSAVESLEEP:
2710                 if (ireq->i_val < 0)
2711                         return EINVAL;
2712                 ic->ic_lintval = ireq->i_val;
2713                 error = ERESTART;
2714                 break;
2715         case IEEE80211_IOC_RTSTHRESHOLD:
2716                 if (!(IEEE80211_RTS_MIN <= ireq->i_val &&
2717                       ireq->i_val <= IEEE80211_RTS_MAX))
2718                         return EINVAL;
2719                 vap->iv_rtsthreshold = ireq->i_val;
2720                 error = ERESTART;
2721                 break;
2722         case IEEE80211_IOC_PROTMODE:
2723                 if (ireq->i_val > IEEE80211_PROT_RTSCTS)
2724                         return EINVAL;
2725                 ic->ic_protmode = (enum ieee80211_protmode)ireq->i_val;
2726                 /* NB: if not operating in 11g this can wait */
2727                 if (ic->ic_bsschan != IEEE80211_CHAN_ANYC &&
2728                     IEEE80211_IS_CHAN_ANYG(ic->ic_bsschan))
2729                         error = ERESTART;
2730                 break;
2731         case IEEE80211_IOC_TXPOWER:
2732                 if ((ic->ic_caps & IEEE80211_C_TXPMGT) == 0)
2733                         return EOPNOTSUPP;
2734                 if (!(IEEE80211_TXPOWER_MIN <= ireq->i_val &&
2735                       ireq->i_val <= IEEE80211_TXPOWER_MAX))
2736                         return EINVAL;
2737                 ic->ic_txpowlimit = ireq->i_val;
2738                 error = ERESTART;
2739                 break;
2740         case IEEE80211_IOC_ROAMING:
2741                 if (!(IEEE80211_ROAMING_DEVICE <= ireq->i_val &&
2742                     ireq->i_val <= IEEE80211_ROAMING_MANUAL))
2743                         return EINVAL;
2744                 vap->iv_roaming = (enum ieee80211_roamingmode)ireq->i_val;
2745                 /* XXXX reset? */
2746                 break;
2747         case IEEE80211_IOC_PRIVACY:
2748                 if (ireq->i_val) {
2749                         /* XXX check for key state? */
2750                         vap->iv_flags |= IEEE80211_F_PRIVACY;
2751                 } else
2752                         vap->iv_flags &= ~IEEE80211_F_PRIVACY;
2753                 /* XXX ERESTART? */
2754                 break;
2755         case IEEE80211_IOC_DROPUNENCRYPTED:
2756                 if (ireq->i_val)
2757                         vap->iv_flags |= IEEE80211_F_DROPUNENC;
2758                 else
2759                         vap->iv_flags &= ~IEEE80211_F_DROPUNENC;
2760                 /* XXX ERESTART? */
2761                 break;
2762         case IEEE80211_IOC_WPAKEY:
2763                 error = ieee80211_ioctl_setkey(vap, ireq);
2764                 break;
2765         case IEEE80211_IOC_DELKEY:
2766                 error = ieee80211_ioctl_delkey(vap, ireq);
2767                 break;
2768         case IEEE80211_IOC_MLME:
2769                 error = ieee80211_ioctl_setmlme(vap, ireq);
2770                 break;
2771         case IEEE80211_IOC_COUNTERMEASURES:
2772                 if (ireq->i_val) {
2773                         if ((vap->iv_flags & IEEE80211_F_WPA) == 0)
2774                                 return EOPNOTSUPP;
2775                         vap->iv_flags |= IEEE80211_F_COUNTERM;
2776                 } else
2777                         vap->iv_flags &= ~IEEE80211_F_COUNTERM;
2778                 /* XXX ERESTART? */
2779                 break;
2780         case IEEE80211_IOC_WPA:
2781                 if (ireq->i_val > 3)
2782                         return EINVAL;
2783                 /* XXX verify ciphers available */
2784                 flags = vap->iv_flags & ~IEEE80211_F_WPA;
2785                 switch (ireq->i_val) {
2786                 case 1:
2787                         if (!(vap->iv_caps & IEEE80211_C_WPA1))
2788                                 return EOPNOTSUPP;
2789                         flags |= IEEE80211_F_WPA1;
2790                         break;
2791                 case 2:
2792                         if (!(vap->iv_caps & IEEE80211_C_WPA2))
2793                                 return EOPNOTSUPP;
2794                         flags |= IEEE80211_F_WPA2;
2795                         break;
2796                 case 3:
2797                         if ((vap->iv_caps & IEEE80211_C_WPA) != IEEE80211_C_WPA)
2798                                 return EOPNOTSUPP;
2799                         flags |= IEEE80211_F_WPA1 | IEEE80211_F_WPA2;
2800                         break;
2801                 default:        /*  Can't set any -> error */
2802                         return EOPNOTSUPP;
2803                 }
2804                 vap->iv_flags = flags;
2805                 error = ERESTART;       /* NB: can change beacon frame */
2806                 break;
2807         case IEEE80211_IOC_WME:
2808                 if (ireq->i_val) {
2809                         if ((vap->iv_caps & IEEE80211_C_WME) == 0)
2810                                 return EOPNOTSUPP;
2811                         ieee80211_syncflag(vap, IEEE80211_F_WME);
2812                 } else
2813                         ieee80211_syncflag(vap, -IEEE80211_F_WME);
2814                 error = ERESTART;       /* NB: can change beacon frame */
2815                 break;
2816         case IEEE80211_IOC_HIDESSID:
2817                 if (ireq->i_val)
2818                         vap->iv_flags |= IEEE80211_F_HIDESSID;
2819                 else
2820                         vap->iv_flags &= ~IEEE80211_F_HIDESSID;
2821                 error = ERESTART;               /* XXX ENETRESET? */
2822                 break;
2823         case IEEE80211_IOC_APBRIDGE:
2824                 if (ireq->i_val == 0)
2825                         vap->iv_flags |= IEEE80211_F_NOBRIDGE;
2826                 else
2827                         vap->iv_flags &= ~IEEE80211_F_NOBRIDGE;
2828                 break;
2829         case IEEE80211_IOC_BSSID:
2830                 if (ireq->i_len != sizeof(tmpbssid))
2831                         return EINVAL;
2832                 error = copyin(ireq->i_data, tmpbssid, ireq->i_len);
2833                 if (error)
2834                         break;
2835                 IEEE80211_ADDR_COPY(vap->iv_des_bssid, tmpbssid);
2836                 if (IEEE80211_ADDR_EQ(vap->iv_des_bssid, zerobssid))
2837                         vap->iv_flags &= ~IEEE80211_F_DESBSSID;
2838                 else
2839                         vap->iv_flags |= IEEE80211_F_DESBSSID;
2840                 error = ENETRESET;
2841                 break;
2842         case IEEE80211_IOC_CHANLIST:
2843                 error = ieee80211_ioctl_setchanlist(vap, ireq);
2844                 break;
2845 #define OLD_IEEE80211_IOC_SCAN_REQ      23
2846 #ifdef OLD_IEEE80211_IOC_SCAN_REQ
2847         case OLD_IEEE80211_IOC_SCAN_REQ:
2848                 IEEE80211_DPRINTF(vap, IEEE80211_MSG_SCAN,
2849                         "%s: active scan request\n", __func__);
2850                 /*
2851                  * If we are in INIT state then the driver has never
2852                  * had a chance to setup hardware state to do a scan;
2853                  * use the state machine to get us up the SCAN state.
2854                  * Otherwise just invoke the scan machinery to start
2855                  * a one-time scan.
2856                  */
2857                 if (vap->iv_state == IEEE80211_S_INIT)
2858                         ieee80211_new_state(vap, IEEE80211_S_SCAN, 0);
2859                 else
2860                         (void) ieee80211_start_scan(vap,
2861                                 IEEE80211_SCAN_ACTIVE |
2862                                 IEEE80211_SCAN_NOPICK |
2863                                 IEEE80211_SCAN_ONCE,
2864                                 IEEE80211_SCAN_FOREVER, 0, 0,
2865                                 /* XXX use ioctl params */
2866                                 vap->iv_des_nssid, vap->iv_des_ssid);
2867                 break;
2868 #endif /* OLD_IEEE80211_IOC_SCAN_REQ */
2869         case IEEE80211_IOC_SCAN_REQ:
2870                 error = ieee80211_ioctl_scanreq(vap, ireq);
2871                 break;
2872         case IEEE80211_IOC_SCAN_CANCEL:
2873                 IEEE80211_DPRINTF(vap, IEEE80211_MSG_SCAN,
2874                     "%s: cancel scan\n", __func__);
2875                 ieee80211_cancel_scan(vap);
2876                 break;
2877         case IEEE80211_IOC_HTCONF:
2878                 if (ireq->i_val & 1)
2879                         ieee80211_syncflag_ht(vap, IEEE80211_FHT_HT);
2880                 else
2881                         ieee80211_syncflag_ht(vap, -IEEE80211_FHT_HT);
2882                 if (ireq->i_val & 2)
2883                         ieee80211_syncflag_ht(vap, IEEE80211_FHT_USEHT40);
2884                 else
2885                         ieee80211_syncflag_ht(vap, -IEEE80211_FHT_USEHT40);
2886                 error = ENETRESET;
2887                 break;
2888         case IEEE80211_IOC_ADDMAC:
2889         case IEEE80211_IOC_DELMAC:
2890                 error = ieee80211_ioctl_macmac(vap, ireq);
2891                 break;
2892         case IEEE80211_IOC_MACCMD:
2893                 error = ieee80211_ioctl_setmaccmd(vap, ireq);
2894                 break;
2895         case IEEE80211_IOC_STA_STATS:
2896                 error = ieee80211_ioctl_setstastats(vap, ireq);
2897                 break;
2898         case IEEE80211_IOC_STA_TXPOW:
2899                 error = ieee80211_ioctl_setstatxpow(vap, ireq);
2900                 break;
2901         case IEEE80211_IOC_WME_CWMIN:           /* WME: CWmin */
2902         case IEEE80211_IOC_WME_CWMAX:           /* WME: CWmax */
2903         case IEEE80211_IOC_WME_AIFS:            /* WME: AIFS */
2904         case IEEE80211_IOC_WME_TXOPLIMIT:       /* WME: txops limit */
2905         case IEEE80211_IOC_WME_ACM:             /* WME: ACM (bss only) */
2906         case IEEE80211_IOC_WME_ACKPOLICY:       /* WME: ACK policy (bss only) */
2907                 error = ieee80211_ioctl_setwmeparam(vap, ireq);
2908                 break;
2909         case IEEE80211_IOC_DTIM_PERIOD:
2910                 if (vap->iv_opmode != IEEE80211_M_HOSTAP &&
2911                     vap->iv_opmode != IEEE80211_M_MBSS &&
2912                     vap->iv_opmode != IEEE80211_M_IBSS)
2913                         return EINVAL;
2914                 if (IEEE80211_DTIM_MIN <= ireq->i_val &&
2915                     ireq->i_val <= IEEE80211_DTIM_MAX) {
2916                         vap->iv_dtim_period = ireq->i_val;
2917                         error = ENETRESET;              /* requires restart */
2918                 } else
2919                         error = EINVAL;
2920                 break;
2921         case IEEE80211_IOC_BEACON_INTERVAL:
2922                 if (vap->iv_opmode != IEEE80211_M_HOSTAP &&
2923                     vap->iv_opmode != IEEE80211_M_MBSS &&
2924                     vap->iv_opmode != IEEE80211_M_IBSS)
2925                         return EINVAL;
2926                 if (IEEE80211_BINTVAL_MIN <= ireq->i_val &&
2927                     ireq->i_val <= IEEE80211_BINTVAL_MAX) {
2928                         ic->ic_bintval = ireq->i_val;
2929                         error = ENETRESET;              /* requires restart */
2930                 } else
2931                         error = EINVAL;
2932                 break;
2933         case IEEE80211_IOC_PUREG:
2934                 if (ireq->i_val)
2935                         vap->iv_flags |= IEEE80211_F_PUREG;
2936                 else
2937                         vap->iv_flags &= ~IEEE80211_F_PUREG;
2938                 /* NB: reset only if we're operating on an 11g channel */
2939                 if (isvap11g(vap))
2940                         error = ENETRESET;
2941                 break;
2942         case IEEE80211_IOC_BGSCAN:
2943                 if (ireq->i_val) {
2944                         if ((vap->iv_caps & IEEE80211_C_BGSCAN) == 0)
2945                                 return EOPNOTSUPP;
2946                         vap->iv_flags |= IEEE80211_F_BGSCAN;
2947                 } else
2948                         vap->iv_flags &= ~IEEE80211_F_BGSCAN;
2949                 break;
2950         case IEEE80211_IOC_BGSCAN_IDLE:
2951                 if (ireq->i_val >= IEEE80211_BGSCAN_IDLE_MIN)
2952                         vap->iv_bgscanidle = ireq->i_val*hz/1000;
2953                 else
2954                         error = EINVAL;
2955                 break;
2956         case IEEE80211_IOC_BGSCAN_INTERVAL:
2957                 if (ireq->i_val >= IEEE80211_BGSCAN_INTVAL_MIN)
2958                         vap->iv_bgscanintvl = ireq->i_val*hz;
2959                 else
2960                         error = EINVAL;
2961                 break;
2962         case IEEE80211_IOC_SCANVALID:
2963                 if (ireq->i_val >= IEEE80211_SCAN_VALID_MIN)
2964                         vap->iv_scanvalid = ireq->i_val*hz;
2965                 else
2966                         error = EINVAL;
2967                 break;
2968         case IEEE80211_IOC_FRAGTHRESHOLD:
2969                 if ((vap->iv_caps & IEEE80211_C_TXFRAG) == 0 &&
2970                     ireq->i_val != IEEE80211_FRAG_MAX)
2971                         return EOPNOTSUPP;
2972                 if (!(IEEE80211_FRAG_MIN <= ireq->i_val &&
2973                       ireq->i_val <= IEEE80211_FRAG_MAX))
2974                         return EINVAL;
2975                 vap->iv_fragthreshold = ireq->i_val;
2976                 error = ERESTART;
2977                 break;
2978         case IEEE80211_IOC_BURST:
2979                 if (ireq->i_val) {
2980                         if ((vap->iv_caps & IEEE80211_C_BURST) == 0)
2981                                 return EOPNOTSUPP;
2982                         ieee80211_syncflag(vap, IEEE80211_F_BURST);
2983                 } else
2984                         ieee80211_syncflag(vap, -IEEE80211_F_BURST);
2985                 error = ERESTART;
2986                 break;
2987         case IEEE80211_IOC_BMISSTHRESHOLD:
2988                 if (!(IEEE80211_HWBMISS_MIN <= ireq->i_val &&
2989                       ireq->i_val <= IEEE80211_HWBMISS_MAX))
2990                         return EINVAL;
2991                 vap->iv_bmissthreshold = ireq->i_val;
2992                 error = ERESTART;
2993                 break;
2994         case IEEE80211_IOC_CURCHAN:
2995                 error = ieee80211_ioctl_setcurchan(vap, ireq);
2996                 break;
2997         case IEEE80211_IOC_SHORTGI:
2998                 if (ireq->i_val) {
2999 #define IEEE80211_HTCAP_SHORTGI \
3000         (IEEE80211_HTCAP_SHORTGI20 | IEEE80211_HTCAP_SHORTGI40)
3001                         if (((ireq->i_val ^ vap->iv_htcaps) & IEEE80211_HTCAP_SHORTGI) != 0)
3002                                 return EINVAL;
3003                         if (ireq->i_val & IEEE80211_HTCAP_SHORTGI20)
3004                                 vap->iv_flags_ht |= IEEE80211_FHT_SHORTGI20;
3005                         if (ireq->i_val & IEEE80211_HTCAP_SHORTGI40)
3006                                 vap->iv_flags_ht |= IEEE80211_FHT_SHORTGI40;
3007 #undef IEEE80211_HTCAP_SHORTGI
3008                 } else
3009                         vap->iv_flags_ht &=
3010                             ~(IEEE80211_FHT_SHORTGI20 | IEEE80211_FHT_SHORTGI40);
3011                 error = ERESTART;
3012                 break;
3013         case IEEE80211_IOC_AMPDU:
3014                 if (ireq->i_val && (vap->iv_htcaps & IEEE80211_HTC_AMPDU) == 0)
3015                         return EINVAL;
3016                 if (ireq->i_val & 1)
3017                         vap->iv_flags_ht |= IEEE80211_FHT_AMPDU_TX;
3018                 else
3019                         vap->iv_flags_ht &= ~IEEE80211_FHT_AMPDU_TX;
3020                 if (ireq->i_val & 2)
3021                         vap->iv_flags_ht |= IEEE80211_FHT_AMPDU_RX;
3022                 else
3023                         vap->iv_flags_ht &= ~IEEE80211_FHT_AMPDU_RX;
3024                 /* NB: reset only if we're operating on an 11n channel */
3025                 if (isvapht(vap))
3026                         error = ERESTART;
3027                 break;
3028         case IEEE80211_IOC_AMPDU_LIMIT:
3029                 if (!(IEEE80211_HTCAP_MAXRXAMPDU_8K <= ireq->i_val &&
3030                       ireq->i_val <= IEEE80211_HTCAP_MAXRXAMPDU_64K))
3031                         return EINVAL;
3032                 if (vap->iv_opmode == IEEE80211_M_HOSTAP)
3033                         vap->iv_ampdu_rxmax = ireq->i_val;
3034                 else
3035                         vap->iv_ampdu_limit = ireq->i_val;
3036                 error = ERESTART;
3037                 break;
3038         case IEEE80211_IOC_AMPDU_DENSITY:
3039                 if (!(IEEE80211_HTCAP_MPDUDENSITY_NA <= ireq->i_val &&
3040                       ireq->i_val <= IEEE80211_HTCAP_MPDUDENSITY_16))
3041                         return EINVAL;
3042                 vap->iv_ampdu_density = ireq->i_val;
3043                 error = ERESTART;
3044                 break;
3045         case IEEE80211_IOC_AMSDU:
3046                 if (ireq->i_val && (vap->iv_htcaps & IEEE80211_HTC_AMSDU) == 0)
3047                         return EINVAL;
3048                 if (ireq->i_val & 1)
3049                         vap->iv_flags_ht |= IEEE80211_FHT_AMSDU_TX;
3050                 else
3051                         vap->iv_flags_ht &= ~IEEE80211_FHT_AMSDU_TX;
3052                 if (ireq->i_val & 2)
3053                         vap->iv_flags_ht |= IEEE80211_FHT_AMSDU_RX;
3054                 else
3055                         vap->iv_flags_ht &= ~IEEE80211_FHT_AMSDU_RX;
3056                 /* NB: reset only if we're operating on an 11n channel */
3057                 if (isvapht(vap))
3058                         error = ERESTART;
3059                 break;
3060         case IEEE80211_IOC_AMSDU_LIMIT:
3061                 /* XXX validate */
3062                 vap->iv_amsdu_limit = ireq->i_val;      /* XXX truncation? */
3063                 break;
3064         case IEEE80211_IOC_PUREN:
3065                 if (ireq->i_val) {
3066                         if ((vap->iv_flags_ht & IEEE80211_FHT_HT) == 0)
3067                                 return EINVAL;
3068                         vap->iv_flags_ht |= IEEE80211_FHT_PUREN;
3069                 } else
3070                         vap->iv_flags_ht &= ~IEEE80211_FHT_PUREN;
3071                 /* NB: reset only if we're operating on an 11n channel */
3072                 if (isvapht(vap))
3073                         error = ERESTART;
3074                 break;
3075         case IEEE80211_IOC_DOTH:
3076                 if (ireq->i_val) {
3077 #if 0
3078                         /* XXX no capability */
3079                         if ((vap->iv_caps & IEEE80211_C_DOTH) == 0)
3080                                 return EOPNOTSUPP;
3081 #endif
3082                         vap->iv_flags |= IEEE80211_F_DOTH;
3083                 } else
3084                         vap->iv_flags &= ~IEEE80211_F_DOTH;
3085                 error = ENETRESET;
3086                 break;
3087         case IEEE80211_IOC_REGDOMAIN:
3088                 error = ieee80211_ioctl_setregdomain(vap, ireq);
3089                 break;
3090         case IEEE80211_IOC_ROAM:
3091                 error = ieee80211_ioctl_setroam(vap, ireq);
3092                 break;
3093         case IEEE80211_IOC_TXPARAMS:
3094                 error = ieee80211_ioctl_settxparams(vap, ireq);
3095                 break;
3096         case IEEE80211_IOC_HTCOMPAT:
3097                 if (ireq->i_val) {
3098                         if ((vap->iv_flags_ht & IEEE80211_FHT_HT) == 0)
3099                                 return EOPNOTSUPP;
3100                         vap->iv_flags_ht |= IEEE80211_FHT_HTCOMPAT;
3101                 } else
3102                         vap->iv_flags_ht &= ~IEEE80211_FHT_HTCOMPAT;
3103                 /* NB: reset only if we're operating on an 11n channel */
3104                 if (isvapht(vap))
3105                         error = ERESTART;
3106                 break;
3107         case IEEE80211_IOC_DWDS:
3108                 if (ireq->i_val) {
3109                         /* NB: DWDS only makes sense for WDS-capable devices */
3110                         if ((ic->ic_caps & IEEE80211_C_WDS) == 0)
3111                                 return EOPNOTSUPP;
3112                         /* NB: DWDS is used only with ap+sta vaps */
3113                         if (vap->iv_opmode != IEEE80211_M_HOSTAP &&
3114                             vap->iv_opmode != IEEE80211_M_STA)
3115                                 return EINVAL;
3116                         vap->iv_flags |= IEEE80211_F_DWDS;
3117                         if (vap->iv_opmode == IEEE80211_M_STA)
3118                                 vap->iv_flags_ext |= IEEE80211_FEXT_4ADDR;
3119                 } else {
3120                         vap->iv_flags &= ~IEEE80211_F_DWDS;
3121                         if (vap->iv_opmode == IEEE80211_M_STA)
3122                                 vap->iv_flags_ext &= ~IEEE80211_FEXT_4ADDR;
3123                 }
3124                 break;
3125         case IEEE80211_IOC_INACTIVITY:
3126                 if (ireq->i_val)
3127                         vap->iv_flags_ext |= IEEE80211_FEXT_INACT;
3128                 else
3129                         vap->iv_flags_ext &= ~IEEE80211_FEXT_INACT;
3130                 break;
3131         case IEEE80211_IOC_APPIE:
3132                 error = ieee80211_ioctl_setappie(vap, ireq);
3133                 break;
3134         case IEEE80211_IOC_WPS:
3135                 if (ireq->i_val) {
3136                         if ((vap->iv_caps & IEEE80211_C_WPA) == 0)
3137                                 return EOPNOTSUPP;
3138                         vap->iv_flags_ext |= IEEE80211_FEXT_WPS;
3139                 } else
3140                         vap->iv_flags_ext &= ~IEEE80211_FEXT_WPS;
3141                 break;
3142         case IEEE80211_IOC_TSN:
3143                 if (ireq->i_val) {
3144                         if ((vap->iv_caps & IEEE80211_C_WPA) == 0)
3145                                 return EOPNOTSUPP;
3146                         vap->iv_flags_ext |= IEEE80211_FEXT_TSN;
3147                 } else
3148                         vap->iv_flags_ext &= ~IEEE80211_FEXT_TSN;
3149                 break;
3150         case IEEE80211_IOC_CHANSWITCH:
3151                 error = ieee80211_ioctl_chanswitch(vap, ireq);
3152                 break;
3153         case IEEE80211_IOC_DFS:
3154                 if (ireq->i_val) {
3155                         if ((vap->iv_caps & IEEE80211_C_DFS) == 0)
3156                                 return EOPNOTSUPP;
3157                         /* NB: DFS requires 11h support */
3158                         if ((vap->iv_flags & IEEE80211_F_DOTH) == 0)
3159                                 return EINVAL;
3160                         vap->iv_flags_ext |= IEEE80211_FEXT_DFS;
3161                 } else
3162                         vap->iv_flags_ext &= ~IEEE80211_FEXT_DFS;
3163                 break;
3164         case IEEE80211_IOC_DOTD:
3165                 if (ireq->i_val)
3166                         vap->iv_flags_ext |= IEEE80211_FEXT_DOTD;
3167                 else
3168                         vap->iv_flags_ext &= ~IEEE80211_FEXT_DOTD;
3169                 if (vap->iv_opmode == IEEE80211_M_STA)
3170                         error = ENETRESET;
3171                 break;
3172         case IEEE80211_IOC_HTPROTMODE:
3173                 if (ireq->i_val > IEEE80211_PROT_RTSCTS)
3174                         return EINVAL;
3175                 ic->ic_htprotmode = ireq->i_val ?
3176                     IEEE80211_PROT_RTSCTS : IEEE80211_PROT_NONE;
3177                 /* NB: if not operating in 11n this can wait */
3178                 if (isvapht(vap))
3179                         error = ERESTART;
3180                 break;
3181         case IEEE80211_IOC_STA_VLAN:
3182                 error = ieee80211_ioctl_setstavlan(vap, ireq);
3183                 break;
3184         case IEEE80211_IOC_SMPS:
3185                 if ((ireq->i_val &~ IEEE80211_HTCAP_SMPS) != 0 ||
3186                     ireq->i_val == 0x0008)      /* value of 2 is reserved */
3187                         return EINVAL;
3188                 if (ireq->i_val != IEEE80211_HTCAP_SMPS_OFF &&
3189                     (vap->iv_htcaps & IEEE80211_HTC_SMPS) == 0)
3190                         return EOPNOTSUPP;
3191                 vap->iv_htcaps = (vap->iv_htcaps &~ IEEE80211_HTCAP_SMPS) |
3192                         ireq->i_val;
3193                 /* NB: if not operating in 11n this can wait */
3194                 if (isvapht(vap))
3195                         error = ERESTART;
3196                 break;
3197         case IEEE80211_IOC_RIFS:
3198                 if (ireq->i_val != 0) {
3199                         if ((vap->iv_htcaps & IEEE80211_HTC_RIFS) == 0)
3200                                 return EOPNOTSUPP;
3201                         vap->iv_flags_ht |= IEEE80211_FHT_RIFS;
3202                 } else
3203                         vap->iv_flags_ht &= ~IEEE80211_FHT_RIFS;
3204                 /* NB: if not operating in 11n this can wait */
3205                 if (isvapht(vap))
3206                         error = ERESTART;
3207                 break;
3208         default:
3209                 error = ieee80211_ioctl_setdefault(vap, ireq);
3210                 break;
3211         }
3212         /*
3213          * The convention is that ENETRESET means an operation
3214          * requires a complete re-initialization of the device (e.g.
3215          * changing something that affects the association state).
3216          * ERESTART means the request may be handled with only a
3217          * reload of the hardware state.  We hand ERESTART requests
3218          * to the iv_reset callback so the driver can decide.  If
3219          * a device does not fillin iv_reset then it defaults to one
3220          * that returns ENETRESET.  Otherwise a driver may return
3221          * ENETRESET (in which case a full reset will be done) or
3222          * 0 to mean there's no need to do anything (e.g. when the
3223          * change has no effect on the driver/device).
3224          */
3225         if (error == ERESTART)
3226                 error = IFNET_IS_UP_RUNNING(vap->iv_ifp) ?
3227                     vap->iv_reset(vap, ireq->i_type) : 0;
3228         if (error == ENETRESET) {
3229                 /* XXX need to re-think AUTO handling */
3230                 if (IS_UP_AUTO(vap))
3231                         ieee80211_init(vap);
3232                 error = 0;
3233         }
3234         return error;
3235 }
3236
3237 /*
3238  * Rebuild the parent's multicast address list after an add/del
3239  * of a multicast address for a vap.  We have no way to tell
3240  * what happened above to optimize the work so we purge the entire
3241  * list and rebuild from scratch.  This is way expensive.
3242  * Note also the half-baked workaround for if_addmulti calling
3243  * back to the parent device; there's no way to insert mcast
3244  * entries quietly and/or cheaply.
3245  */
3246 static void
3247 ieee80211_ioctl_updatemulti(struct ieee80211com *ic)
3248 {
3249         struct ifnet *parent = ic->ic_ifp;
3250         struct ieee80211vap *vap;
3251         void *ioctl;
3252
3253         IEEE80211_LOCK(ic);
3254         if_delallmulti(parent);
3255         ioctl = parent->if_ioctl;       /* XXX WAR if_allmulti */
3256         parent->if_ioctl = NULL;
3257         TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) {
3258                 struct ifnet *ifp = vap->iv_ifp;
3259                 struct ifmultiaddr *ifma;
3260
3261                 TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
3262                         if (ifma->ifma_addr->sa_family != AF_LINK)
3263                                 continue;
3264                         (void) if_addmulti(parent, ifma->ifma_addr, NULL);
3265                 }
3266         }
3267         parent->if_ioctl = ioctl;
3268         ieee80211_runtask(ic, &ic->ic_mcast_task);
3269         IEEE80211_UNLOCK(ic);
3270 }
3271
3272 int
3273 ieee80211_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
3274 {
3275         struct ieee80211vap *vap = ifp->if_softc;
3276         struct ieee80211com *ic = vap->iv_ic;
3277         int error = 0;
3278         struct ifreq *ifr;
3279         struct ifaddr *ifa;                     /* XXX */
3280
3281         switch (cmd) {
3282         case SIOCSIFFLAGS:
3283                 IEEE80211_LOCK(ic);
3284                 ieee80211_syncifflag_locked(ic, IFF_PROMISC);
3285                 ieee80211_syncifflag_locked(ic, IFF_ALLMULTI);
3286                 if (ifp->if_flags & IFF_UP) {
3287                         /*
3288                          * Bring ourself up unless we're already operational.
3289                          * If we're the first vap and the parent is not up
3290                          * then it will automatically be brought up as a
3291                          * side-effect of bringing ourself up.
3292                          */
3293                         if (vap->iv_state == IEEE80211_S_INIT)
3294                                 ieee80211_start_locked(vap);
3295                 } else if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
3296                         /*
3297                          * Stop ourself.  If we are the last vap to be
3298                          * marked down the parent will also be taken down.
3299                          */
3300                         ieee80211_stop_locked(vap);
3301                 }
3302                 IEEE80211_UNLOCK(ic);
3303                 /* Wait for parent ioctl handler if it was queued */
3304                 ieee80211_waitfor_parent(ic);
3305                 break;
3306         case SIOCADDMULTI:
3307         case SIOCDELMULTI:
3308                 ieee80211_ioctl_updatemulti(ic);
3309                 break;
3310         case SIOCSIFMEDIA:
3311         case SIOCGIFMEDIA:
3312                 ifr = (struct ifreq *)data;
3313                 error = ifmedia_ioctl(ifp, ifr, &vap->iv_media, cmd);
3314                 break;
3315         case SIOCG80211:
3316                 error = ieee80211_ioctl_get80211(vap, cmd,
3317                                 (struct ieee80211req *) data);
3318                 break;
3319         case SIOCS80211:
3320                 error = priv_check(curthread, PRIV_NET80211_MANAGE);
3321                 if (error == 0)
3322                         error = ieee80211_ioctl_set80211(vap, cmd,
3323                                         (struct ieee80211req *) data);
3324                 break;
3325         case SIOCG80211STATS:
3326                 ifr = (struct ifreq *)data;
3327                 copyout(&vap->iv_stats, ifr->ifr_data, sizeof (vap->iv_stats));
3328                 break;
3329         case SIOCSIFMTU:
3330                 ifr = (struct ifreq *)data;
3331                 if (!(IEEE80211_MTU_MIN <= ifr->ifr_mtu &&
3332                     ifr->ifr_mtu <= IEEE80211_MTU_MAX))
3333                         error = EINVAL;
3334                 else
3335                         ifp->if_mtu = ifr->ifr_mtu;
3336                 break;
3337         case SIOCSIFADDR:
3338                 /*
3339                  * XXX Handle this directly so we can supress if_init calls.
3340                  * XXX This should be done in ether_ioctl but for the moment
3341                  * XXX there are too many other parts of the system that
3342                  * XXX set IFF_UP and so supress if_init being called when
3343                  * XXX it should be.
3344                  */
3345                 ifa = (struct ifaddr *) data;
3346                 switch (ifa->ifa_addr->sa_family) {
3347 #ifdef INET
3348                 case AF_INET:
3349                         if ((ifp->if_flags & IFF_UP) == 0) {
3350                                 ifp->if_flags |= IFF_UP;
3351                                 ifp->if_init(ifp->if_softc);
3352                         }
3353                         arp_ifinit(ifp, ifa);
3354                         break;
3355 #endif
3356 #ifdef IPX
3357                 /*
3358                  * XXX - This code is probably wrong,
3359                  *       but has been copied many times.
3360                  */
3361                 case AF_IPX: {
3362                         struct ipx_addr *ina = &(IA_SIPX(ifa)->sipx_addr);
3363
3364                         if (ipx_nullhost(*ina))
3365                                 ina->x_host = *(union ipx_host *)
3366                                     IF_LLADDR(ifp);
3367                         else
3368                                 bcopy((caddr_t) ina->x_host.c_host,
3369                                       (caddr_t) IF_LLADDR(ifp),
3370                                       ETHER_ADDR_LEN);
3371                         /* fall thru... */
3372                 }
3373 #endif
3374                 default:
3375                         if ((ifp->if_flags & IFF_UP) == 0) {
3376                                 ifp->if_flags |= IFF_UP;
3377                                 ifp->if_init(ifp->if_softc);
3378                         }
3379                         break;
3380                 }
3381                 break;
3382         /* Pass NDIS ioctls up to the driver */
3383         case SIOCGDRVSPEC:
3384         case SIOCSDRVSPEC:
3385         case SIOCGPRIVATE_0: {
3386                 struct ifnet *parent = vap->iv_ic->ic_ifp;
3387                 error = parent->if_ioctl(parent, cmd, data);
3388                 break;
3389         }
3390         default:
3391                 error = ether_ioctl(ifp, cmd, data);
3392                 break;
3393         }
3394         return error;
3395 }