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
  74 static __noinline int
  75 ieee80211_ioctl_getkey(struct ieee80211vap *vap, struct ieee80211req *ireq)
  76 {
  77         struct ieee80211com *ic = vap->iv_ic;
  78         struct ieee80211_node *ni;
  79         struct ieee80211req_key ik;
  80         struct ieee80211_key *wk;
  81         const struct ieee80211_cipher *cip;
  82         u_int kid;
  83         int error;
  84
  85         if (ireq->i_len != sizeof(ik))
  86                 return EINVAL;
  87         error = copyin(ireq->i_data, &ik, sizeof(ik));
  88         if (error)
  89                 return error;
  90         kid = ik.ik_keyix;
  91         if (kid == IEEE80211_KEYIX_NONE) {
  92                 ni = ieee80211_find_vap_node(&ic->ic_sta, vap, ik.ik_macaddr);
  93                 if (ni == NULL)
  94                         return ENOENT;
  95                 wk = &ni->ni_ucastkey;
  96         } else {
  97                 if (kid >= IEEE80211_WEP_NKID)
  98                         return EINVAL;
  99                 wk = &vap->iv_nw_keys[kid];
 100                 IEEE80211_ADDR_COPY(&ik.ik_macaddr, vap->iv_bss->ni_macaddr);
 101                 ni = NULL;
 102         }
 103         cip = wk->wk_cipher;
 104         ik.ik_type = cip->ic_cipher;
 105         ik.ik_keylen = wk->wk_keylen;
 106         ik.ik_flags = wk->wk_flags & (IEEE80211_KEY_XMIT | IEEE80211_KEY_RECV);
 107         if (wk->wk_keyix == vap->iv_def_txkey)
 108                 ik.ik_flags |= IEEE80211_KEY_DEFAULT;
 109         if (priv_check(curthread, PRIV_NET80211_GETKEY) == 0) {
 110                 /* NB: only root can read key data */
 111                 ik.ik_keyrsc = wk->wk_keyrsc[IEEE80211_NONQOS_TID];
 112                 ik.ik_keytsc = wk->wk_keytsc;
 113                 memcpy(ik.ik_keydata, wk->wk_key, wk->wk_keylen);
 114                 if (cip->ic_cipher == IEEE80211_CIPHER_TKIP) {
 115                         memcpy(ik.ik_keydata+wk->wk_keylen,
 116                                 wk->wk_key + IEEE80211_KEYBUF_SIZE,
 117                                 IEEE80211_MICBUF_SIZE);
 118                         ik.ik_keylen += IEEE80211_MICBUF_SIZE;
 119                 }
 120         } else {
 121                 ik.ik_keyrsc = 0;
 122                 ik.ik_keytsc = 0;
 123                 memset(ik.ik_keydata, 0, sizeof(ik.ik_keydata));
 124         }
 125         if (ni != NULL)
 126                 ieee80211_free_node(ni);
 127         return copyout(&ik, ireq->i_data, sizeof(ik));
 128 }
 129
 130 static __noinline int
 131 ieee80211_ioctl_getchanlist(struct ieee80211vap *vap, struct ieee80211req *ireq)
 132 {
 133         struct ieee80211com *ic = vap->iv_ic;
 134
 135         if (sizeof(ic->ic_chan_active) < ireq->i_len)
 136                 ireq->i_len = sizeof(ic->ic_chan_active);
 137         return copyout(&ic->ic_chan_active, ireq->i_data, ireq->i_len);
 138 }
 139
 140 static __noinline int
 141 ieee80211_ioctl_getchaninfo(struct ieee80211vap *vap, struct ieee80211req *ireq)
 142 {
 143         struct ieee80211com *ic = vap->iv_ic;
 144         int space;
 145
 146         space = __offsetof(struct ieee80211req_chaninfo,
 147                         ic_chans[ic->ic_nchans]);
 148         if (space > ireq->i_len)
 149                 space = ireq->i_len;
 150         /* XXX assumes compatible layout */
 151         return copyout(&ic->ic_nchans, ireq->i_data, space);
 152 }
 153
 154 static __noinline int
 155 ieee80211_ioctl_getwpaie(struct ieee80211vap *vap,
 156         struct ieee80211req *ireq, int req)
 157 {
 158         struct ieee80211_node *ni;
 159         struct ieee80211req_wpaie2 wpaie;
 160         int error;
 161
 162         if (ireq->i_len < IEEE80211_ADDR_LEN)
 163                 return EINVAL;
 164         error = copyin(ireq->i_data, wpaie.wpa_macaddr, IEEE80211_ADDR_LEN);
 165         if (error != 0)
 166                 return error;
 167         ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap, wpaie.wpa_macaddr);
 168         if (ni == NULL)
 169                 return ENOENT;
 170         memset(wpaie.wpa_ie, 0, sizeof(wpaie.wpa_ie));
 171         if (ni->ni_ies.wpa_ie != NULL) {
 172                 int ielen = ni->ni_ies.wpa_ie[1] + 2;
 173                 if (ielen > sizeof(wpaie.wpa_ie))
 174                         ielen = sizeof(wpaie.wpa_ie);
 175                 memcpy(wpaie.wpa_ie, ni->ni_ies.wpa_ie, ielen);
 176         }
 177         if (req == IEEE80211_IOC_WPAIE2) {
 178                 memset(wpaie.rsn_ie, 0, sizeof(wpaie.rsn_ie));
 179                 if (ni->ni_ies.rsn_ie != NULL) {
 180                         int ielen = ni->ni_ies.rsn_ie[1] + 2;
 181                         if (ielen > sizeof(wpaie.rsn_ie))
 182                                 ielen = sizeof(wpaie.rsn_ie);
 183                         memcpy(wpaie.rsn_ie, ni->ni_ies.rsn_ie, ielen);
 184                 }
 185                 if (ireq->i_len > sizeof(struct ieee80211req_wpaie2))
 186                         ireq->i_len = sizeof(struct ieee80211req_wpaie2);
 187         } else {
 188                 /* compatibility op, may overwrite wpa ie */
 189                 /* XXX check ic_flags? */
 190                 if (ni->ni_ies.rsn_ie != NULL) {
 191                         int ielen = ni->ni_ies.rsn_ie[1] + 2;
 192                         if (ielen > sizeof(wpaie.wpa_ie))
 193                                 ielen = sizeof(wpaie.wpa_ie);
 194                         memcpy(wpaie.wpa_ie, ni->ni_ies.rsn_ie, ielen);
 195                 }
 196                 if (ireq->i_len > sizeof(struct ieee80211req_wpaie))
 197                         ireq->i_len = sizeof(struct ieee80211req_wpaie);
 198         }
 199         ieee80211_free_node(ni);
 200         return copyout(&wpaie, ireq->i_data, ireq->i_len);
 201 }
 202
 203 static __noinline int
 204 ieee80211_ioctl_getstastats(struct ieee80211vap *vap, struct ieee80211req *ireq)
 205 {
 206         struct ieee80211_node *ni;
 207         uint8_t macaddr[IEEE80211_ADDR_LEN];
 208         const int off = __offsetof(struct ieee80211req_sta_stats, is_stats);
 209         int error;
 210
 211         if (ireq->i_len < off)
 212                 return EINVAL;
 213         error = copyin(ireq->i_data, macaddr, IEEE80211_ADDR_LEN);
 214         if (error != 0)
 215                 return error;
 216         ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap, macaddr);
 217         if (ni == NULL)
 218                 return ENOENT;
 219         if (ireq->i_len > sizeof(struct ieee80211req_sta_stats))
 220                 ireq->i_len = sizeof(struct ieee80211req_sta_stats);
 221         /* NB: copy out only the statistics */
 222         error = copyout(&ni->ni_stats, (uint8_t *) ireq->i_data + off,
 223                         ireq->i_len - off);
 224         ieee80211_free_node(ni);
 225         return error;
 226 }
 227
 228 struct scanreq {
 229         struct ieee80211req_scan_result *sr;
 230         size_t space;
 231 };
 232
 233 static size_t
 234 scan_space(const struct ieee80211_scan_entry *se, int *ielen)
 235 {
 236         size_t len;
 237
 238         *ielen = se->se_ies.len;
 239         /*
 240          * NB: ie's can be no more than 255 bytes and the max 802.11
 241          * packet is <3Kbytes so we are sure this doesn't overflow
 242          * 16-bits; if this is a concern we can drop the ie's.
 243          */
 244         len = sizeof(struct ieee80211req_scan_result) + se->se_ssid[1] + *ielen;
 245         return roundup(len, sizeof(uint32_t));
 246 }
 247
 248 static void
 249 get_scan_space(void *arg, const struct ieee80211_scan_entry *se)
 250 {
 251         struct scanreq *req = arg;
 252         int ielen;
 253
 254         req->space += scan_space(se, &ielen);
 255 }
 256
 257 static __noinline void
 258 get_scan_result(void *arg, const struct ieee80211_scan_entry *se)
 259 {
 260         struct scanreq *req = arg;
 261         struct ieee80211req_scan_result *sr;
 262         int ielen, len, nr, nxr;
 263         uint8_t *cp;
 264
 265         len = scan_space(se, &ielen);
 266         if (len > req->space)
 267                 return;
 268
 269         sr = req->sr;
 270         KASSERT(len <= 65535 && ielen <= 65535,
 271             ("len %u ssid %u ie %u", len, se->se_ssid[1], ielen));
 272         sr->isr_len = len;
 273         sr->isr_ie_off = sizeof(struct ieee80211req_scan_result);
 274         sr->isr_ie_len = ielen;
 275         sr->isr_freq = se->se_chan->ic_freq;
 276         sr->isr_flags = se->se_chan->ic_flags;
 277         sr->isr_rssi = se->se_rssi;
 278         sr->isr_noise = se->se_noise;
 279         sr->isr_intval = se->se_intval;
 280         sr->isr_capinfo = se->se_capinfo;
 281         sr->isr_erp = se->se_erp;
 282         IEEE80211_ADDR_COPY(sr->isr_bssid, se->se_bssid);
 283         nr = min(se->se_rates[1], IEEE80211_RATE_MAXSIZE);
 284         memcpy(sr->isr_rates, se->se_rates+2, nr);
 285         nxr = min(se->se_xrates[1], IEEE80211_RATE_MAXSIZE - nr);
 286         memcpy(sr->isr_rates+nr, se->se_xrates+2, nxr);
 287         sr->isr_nrates = nr + nxr;
 288
 289         sr->isr_ssid_len = se->se_ssid[1];
 290         cp = ((uint8_t *)sr) + sr->isr_ie_off;
 291         memcpy(cp, se->se_ssid+2, sr->isr_ssid_len);
 292
 293         if (ielen) {
 294                 cp += sr->isr_ssid_len;
 295                 memcpy(cp, se->se_ies.data, ielen);
 296         }
 297
 298         req->space -= len;
 299         req->sr = (struct ieee80211req_scan_result *)(((uint8_t *)sr) + len);
 300 }
 301
 302 static __noinline int
 303 ieee80211_ioctl_getscanresults(struct ieee80211vap *vap,
 304         struct ieee80211req *ireq)
 305 {
 306         struct scanreq req;
 307         int error;
 308
 309         if (ireq->i_len < sizeof(struct scanreq))
 310                 return EFAULT;
 311
 312         error = 0;
 313         req.space = 0;
 314         ieee80211_scan_iterate(vap, get_scan_space, &req);
 315         if (req.space > ireq->i_len)
 316                 req.space = ireq->i_len;
 317         if (req.space > 0) {
 318                 size_t space;
 319                 void *p;
 320
 321                 space = req.space;
 322                 /* XXX M_WAITOK after driver lock released */
 323                 p = malloc(space, M_TEMP, M_NOWAIT | M_ZERO);
 324                 if (p == NULL)
 325                         return ENOMEM;
 326                 req.sr = p;
 327                 ieee80211_scan_iterate(vap, get_scan_result, &req);
 328                 ireq->i_len = space - req.space;
 329                 error = copyout(p, ireq->i_data, ireq->i_len);
 330                 free(p, M_TEMP);
 331         } else
 332                 ireq->i_len = 0;
 333
 334         return error;
 335 }
 336
 337 struct stainforeq {
 338         struct ieee80211vap *vap;
 339         struct ieee80211req_sta_info *si;
 340         size_t  space;
 341 };
 342
 343 static size_t
 344 sta_space(const struct ieee80211_node *ni, size_t *ielen)
 345 {
 346         *ielen = ni->ni_ies.len;
 347         return roundup(sizeof(struct ieee80211req_sta_info) + *ielen,
 348                       sizeof(uint32_t));
 349 }
 350
 351 static void
 352 get_sta_space(void *arg, struct ieee80211_node *ni)
 353 {
 354         struct stainforeq *req = arg;
 355         size_t ielen;
 356
 357         if (req->vap != ni->ni_vap)
 358                 return;
 359         if (ni->ni_vap->iv_opmode == IEEE80211_M_HOSTAP &&
 360             ni->ni_associd == 0)        /* only associated stations */
 361                 return;
 362         req->space += sta_space(ni, &ielen);
 363 }
 364
 365 static __noinline void
 366 get_sta_info(void *arg, struct ieee80211_node *ni)
 367 {
 368         struct stainforeq *req = arg;
 369         struct ieee80211vap *vap = ni->ni_vap;
 370         struct ieee80211req_sta_info *si;
 371         size_t ielen, len;
 372         uint8_t *cp;
 373
 374         if (req->vap != ni->ni_vap)
 375                 return;
 376         if (vap->iv_opmode == IEEE80211_M_HOSTAP &&
 377             ni->ni_associd == 0)        /* only associated stations */
 378                 return;
 379         if (ni->ni_chan == IEEE80211_CHAN_ANYC) /* XXX bogus entry */
 380                 return;
 381         len = sta_space(ni, &ielen);
 382         if (len > req->space)
 383                 return;
 384         si = req->si;
 385         si->isi_len = len;
 386         si->isi_ie_off = sizeof(struct ieee80211req_sta_info);
 387         si->isi_ie_len = ielen;
 388         si->isi_freq = ni->ni_chan->ic_freq;
 389         si->isi_flags = ni->ni_chan->ic_flags;
 390         si->isi_state = ni->ni_flags;
 391         si->isi_authmode = ni->ni_authmode;
 392         vap->iv_ic->ic_node_getsignal(ni, &si->isi_rssi, &si->isi_noise);
 393         vap->iv_ic->ic_node_getmimoinfo(ni, &si->isi_mimo);
 394         si->isi_capinfo = ni->ni_capinfo;
 395         si->isi_erp = ni->ni_erp;
 396         IEEE80211_ADDR_COPY(si->isi_macaddr, ni->ni_macaddr);
 397         si->isi_nrates = ni->ni_rates.rs_nrates;
 398         if (si->isi_nrates > 15)
 399                 si->isi_nrates = 15;
 400         memcpy(si->isi_rates, ni->ni_rates.rs_rates, si->isi_nrates);
 401         si->isi_txrate = ni->ni_txrate;
 402         if (si->isi_txrate & IEEE80211_RATE_MCS) {
 403                 const struct ieee80211_mcs_rates *mcs =
 404                     &ieee80211_htrates[ni->ni_txrate &~ IEEE80211_RATE_MCS];
 405                 if (IEEE80211_IS_CHAN_HT40(ni->ni_chan)) {
 406                         if (ni->ni_htcap & IEEE80211_HTCAP_SHORTGI40)
 407                                 si->isi_txmbps = mcs->ht40_rate_800ns;
 408                         else
 409                                 si->isi_txmbps = mcs->ht40_rate_400ns;
 410                 } else {
 411                         if (ni->ni_htcap & IEEE80211_HTCAP_SHORTGI20)
 412                                 si->isi_txmbps = mcs->ht20_rate_800ns;
 413                         else
 414                                 si->isi_txmbps = mcs->ht20_rate_400ns;
 415                 }
 416         } else
 417                 si->isi_txmbps = si->isi_txrate;
 418         si->isi_associd = ni->ni_associd;
 419         si->isi_txpower = ni->ni_txpower;
 420         si->isi_vlan = ni->ni_vlan;
 421         if (ni->ni_flags & IEEE80211_NODE_QOS) {
 422                 memcpy(si->isi_txseqs, ni->ni_txseqs, sizeof(ni->ni_txseqs));
 423                 memcpy(si->isi_rxseqs, ni->ni_rxseqs, sizeof(ni->ni_rxseqs));
 424         } else {
 425                 si->isi_txseqs[0] = ni->ni_txseqs[IEEE80211_NONQOS_TID];
 426                 si->isi_rxseqs[0] = ni->ni_rxseqs[IEEE80211_NONQOS_TID];
 427         }
 428         /* NB: leave all cases in case we relax ni_associd == 0 check */
 429         if (ieee80211_node_is_authorized(ni))
 430                 si->isi_inact = vap->iv_inact_run;
 431         else if (ni->ni_associd != 0 ||
 432             (vap->iv_opmode == IEEE80211_M_WDS &&
 433              (vap->iv_flags_ext & IEEE80211_FEXT_WDSLEGACY)))
 434                 si->isi_inact = vap->iv_inact_auth;
 435         else
 436                 si->isi_inact = vap->iv_inact_init;
 437         si->isi_inact = (si->isi_inact - ni->ni_inact) * IEEE80211_INACT_WAIT;
 438
 439         if (ielen) {
 440                 cp = ((uint8_t *)si) + si->isi_ie_off;
 441                 memcpy(cp, ni->ni_ies.data, ielen);
 442         }
 443
 444         req->si = (struct ieee80211req_sta_info *)(((uint8_t *)si) + len);
 445         req->space -= len;
 446 }
 447
 448 static __noinline int
 449 getstainfo_common(struct ieee80211vap *vap, struct ieee80211req *ireq,
 450         struct ieee80211_node *ni, int off)
 451 {
 452         struct ieee80211com *ic = vap->iv_ic;
 453         struct stainforeq req;
 454         size_t space;
 455         void *p;
 456         int error;
 457
 458         error = 0;
 459         req.space = 0;
 460         req.vap = vap;
 461         if (ni == NULL)
 462                 ieee80211_iterate_nodes(&ic->ic_sta, get_sta_space, &req);
 463         else
 464                 get_sta_space(&req, ni);
 465         if (req.space > ireq->i_len)
 466                 req.space = ireq->i_len;
 467         if (req.space > 0) {
 468                 space = req.space;
 469                 /* XXX M_WAITOK after driver lock released */
 470                 p = malloc(space, M_TEMP, M_NOWAIT | M_ZERO);
 471                 if (p == NULL) {
 472                         error = ENOMEM;
 473                         goto bad;
 474                 }
 475                 req.si = p;
 476                 if (ni == NULL)
 477                         ieee80211_iterate_nodes(&ic->ic_sta, get_sta_info, &req);
 478                 else
 479                         get_sta_info(&req, ni);
 480                 ireq->i_len = space - req.space;
 481                 error = copyout(p, (uint8_t *) ireq->i_data+off, ireq->i_len);
 482                 free(p, M_TEMP);
 483         } else
 484                 ireq->i_len = 0;
 485 bad:
 486         if (ni != NULL)
 487                 ieee80211_free_node(ni);
 488         return error;
 489 }
 490
 491 static __noinline int
 492 ieee80211_ioctl_getstainfo(struct ieee80211vap *vap, struct ieee80211req *ireq)
 493 {
 494         uint8_t macaddr[IEEE80211_ADDR_LEN];
 495         const int off = __offsetof(struct ieee80211req_sta_req, info);
 496         struct ieee80211_node *ni;
 497         int error;
 498
 499         if (ireq->i_len < sizeof(struct ieee80211req_sta_req))
 500                 return EFAULT;
 501         error = copyin(ireq->i_data, macaddr, IEEE80211_ADDR_LEN);
 502         if (error != 0)
 503                 return error;
 504         if (IEEE80211_ADDR_EQ(macaddr, vap->iv_ifp->if_broadcastaddr)) {
 505                 ni = NULL;
 506         } else {
 507                 ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap, macaddr);
 508                 if (ni == NULL)
 509                         return ENOENT;
 510         }
 511         return getstainfo_common(vap, ireq, ni, off);
 512 }
 513
 514 static __noinline int
 515 ieee80211_ioctl_getstatxpow(struct ieee80211vap *vap, struct ieee80211req *ireq)
 516 {
 517         struct ieee80211_node *ni;
 518         struct ieee80211req_sta_txpow txpow;
 519         int error;
 520
 521         if (ireq->i_len != sizeof(txpow))
 522                 return EINVAL;
 523         error = copyin(ireq->i_data, &txpow, sizeof(txpow));
 524         if (error != 0)
 525                 return error;
 526         ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap, txpow.it_macaddr);
 527         if (ni == NULL)
 528                 return ENOENT;
 529         txpow.it_txpow = ni->ni_txpower;
 530         error = copyout(&txpow, ireq->i_data, sizeof(txpow));
 531         ieee80211_free_node(ni);
 532         return error;
 533 }
 534
 535 static __noinline int
 536 ieee80211_ioctl_getwmeparam(struct ieee80211vap *vap, struct ieee80211req *ireq)
 537 {
 538         struct ieee80211com *ic = vap->iv_ic;
 539         struct ieee80211_wme_state *wme = &ic->ic_wme;
 540         struct wmeParams *wmep;
 541         int ac;
 542
 543         if ((ic->ic_caps & IEEE80211_C_WME) == 0)
 544                 return EINVAL;
 545
 546         ac = (ireq->i_len & IEEE80211_WMEPARAM_VAL);
 547         if (ac >= WME_NUM_AC)
 548                 ac = WME_AC_BE;
 549         if (ireq->i_len & IEEE80211_WMEPARAM_BSS)
 550                 wmep = &wme->wme_wmeBssChanParams.cap_wmeParams[ac];
 551         else
 552                 wmep = &wme->wme_wmeChanParams.cap_wmeParams[ac];
 553         switch (ireq->i_type) {
 554         case IEEE80211_IOC_WME_CWMIN:           /* WME: CWmin */
 555                 ireq->i_val = wmep->wmep_logcwmin;
 556                 break;
 557         case IEEE80211_IOC_WME_CWMAX:           /* WME: CWmax */
 558                 ireq->i_val = wmep->wmep_logcwmax;
 559                 break;
 560         case IEEE80211_IOC_WME_AIFS:            /* WME: AIFS */
 561                 ireq->i_val = wmep->wmep_aifsn;
 562                 break;
 563         case IEEE80211_IOC_WME_TXOPLIMIT:       /* WME: txops limit */
 564                 ireq->i_val = wmep->wmep_txopLimit;
 565                 break;
 566         case IEEE80211_IOC_WME_ACM:             /* WME: ACM (bss only) */
 567                 wmep = &wme->wme_wmeBssChanParams.cap_wmeParams[ac];
 568                 ireq->i_val = wmep->wmep_acm;
 569                 break;
 570         case IEEE80211_IOC_WME_ACKPOLICY:       /* WME: ACK policy (!bss only)*/
 571                 wmep = &wme->wme_wmeChanParams.cap_wmeParams[ac];
 572                 ireq->i_val = !wmep->wmep_noackPolicy;
 573                 break;
 574         }
 575         return 0;
 576 }
 577
 578 static __noinline int
 579 ieee80211_ioctl_getmaccmd(struct ieee80211vap *vap, struct ieee80211req *ireq)
 580 {
 581         const struct ieee80211_aclator *acl = vap->iv_acl;
 582
 583         return (acl == NULL ? EINVAL : acl->iac_getioctl(vap, ireq));
 584 }
 585
 586 static __noinline int
 587 ieee80211_ioctl_getcurchan(struct ieee80211vap *vap, struct ieee80211req *ireq)
 588 {
 589         struct ieee80211com *ic = vap->iv_ic;
 590         struct ieee80211_channel *c;
 591
 592         if (ireq->i_len != sizeof(struct ieee80211_channel))
 593                 return EINVAL;
 594         /*
 595          * vap's may have different operating channels when HT is
 596          * in use.  When in RUN state report the vap-specific channel.
 597          * Otherwise return curchan.
 598          */
 599         if (vap->iv_state == IEEE80211_S_RUN)
 600                 c = vap->iv_bss->ni_chan;
 601         else
 602                 c = ic->ic_curchan;
 603         return copyout(c, ireq->i_data, sizeof(*c));
 604 }
 605
 606 static int
 607 getappie(const struct ieee80211_appie *aie, struct ieee80211req *ireq)
 608 {
 609         if (aie == NULL)
 610                 return EINVAL;
 611         /* NB: truncate, caller can check length */
 612         if (ireq->i_len > aie->ie_len)
 613                 ireq->i_len = aie->ie_len;
 614         return copyout(aie->ie_data, ireq->i_data, ireq->i_len);
 615 }
 616
 617 static int
 618 ieee80211_ioctl_getappie(struct ieee80211vap *vap, struct ieee80211req *ireq)
 619 {
 620         uint8_t fc0;
 621
 622         fc0 = ireq->i_val & 0xff;
 623         if ((fc0 & IEEE80211_FC0_TYPE_MASK) != IEEE80211_FC0_TYPE_MGT)
 624                 return EINVAL;
 625         /* NB: could check iv_opmode and reject but hardly worth the effort */
 626         switch (fc0 & IEEE80211_FC0_SUBTYPE_MASK) {
 627         case IEEE80211_FC0_SUBTYPE_BEACON:
 628                 return getappie(vap->iv_appie_beacon, ireq);
 629         case IEEE80211_FC0_SUBTYPE_PROBE_RESP:
 630                 return getappie(vap->iv_appie_proberesp, ireq);
 631         case IEEE80211_FC0_SUBTYPE_ASSOC_RESP:
 632                 return getappie(vap->iv_appie_assocresp, ireq);
 633         case IEEE80211_FC0_SUBTYPE_PROBE_REQ:
 634                 return getappie(vap->iv_appie_probereq, ireq);
 635         case IEEE80211_FC0_SUBTYPE_ASSOC_REQ:
 636                 return getappie(vap->iv_appie_assocreq, ireq);
 637         case IEEE80211_FC0_SUBTYPE_BEACON|IEEE80211_FC0_SUBTYPE_PROBE_RESP:
 638                 return getappie(vap->iv_appie_wpa, ireq);
 639         }
 640         return EINVAL;
 641 }
 642
 643 static __noinline int
 644 ieee80211_ioctl_getregdomain(struct ieee80211vap *vap,
 645         const struct ieee80211req *ireq)
 646 {
 647         struct ieee80211com *ic = vap->iv_ic;
 648
 649         if (ireq->i_len != sizeof(ic->ic_regdomain))
 650                 return EINVAL;
 651         return copyout(&ic->ic_regdomain, ireq->i_data,
 652             sizeof(ic->ic_regdomain));
 653 }
 654
 655 static __noinline int
 656 ieee80211_ioctl_getroam(struct ieee80211vap *vap,
 657         const struct ieee80211req *ireq)
 658 {
 659         size_t len = ireq->i_len;
 660         /* NB: accept short requests for backwards compat */
 661         if (len > sizeof(vap->iv_roamparms))
 662                 len = sizeof(vap->iv_roamparms);
 663         return copyout(vap->iv_roamparms, ireq->i_data, len);
 664 }
 665
 666 static __noinline int
 667 ieee80211_ioctl_gettxparams(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_txparms))
 673                 len = sizeof(vap->iv_txparms);
 674         return copyout(vap->iv_txparms, ireq->i_data, len);
 675 }
 676
 677 static __noinline int
 678 ieee80211_ioctl_getdevcaps(struct ieee80211com *ic,
 679         const struct ieee80211req *ireq)
 680 {
 681         struct ieee80211_devcaps_req *dc;
 682         struct ieee80211req_chaninfo *ci;
 683         int maxchans, error;
 684
 685         maxchans = 1 + ((ireq->i_len - sizeof(struct ieee80211_devcaps_req)) /
 686             sizeof(struct ieee80211_channel));
 687         /* NB: require 1 so we know ic_nchans is accessible */
 688         if (maxchans < 1)
 689                 return EINVAL;
 690         /* constrain max request size, 2K channels is ~24Kbytes */
 691         if (maxchans > 2048)
 692                 maxchans = 2048;
 693         dc = (struct ieee80211_devcaps_req *)
 694             malloc(IEEE80211_DEVCAPS_SIZE(maxchans), M_TEMP, M_NOWAIT | M_ZERO);
 695         if (dc == NULL)
 696                 return ENOMEM;
 697         dc->dc_drivercaps = ic->ic_caps;
 698         dc->dc_cryptocaps = ic->ic_cryptocaps;
 699         dc->dc_htcaps = ic->ic_htcaps;
 700         ci = &dc->dc_chaninfo;
 701         ic->ic_getradiocaps(ic, maxchans, &ci->ic_nchans, ci->ic_chans);
 702         KASSERT(ci->ic_nchans <= maxchans,
 703             ("nchans %d maxchans %d", ci->ic_nchans, maxchans));
 704         ieee80211_sort_channels(ci->ic_chans, ci->ic_nchans);
 705         error = copyout(dc, ireq->i_data, IEEE80211_DEVCAPS_SPACE(dc));
 706         free(dc, M_TEMP);
 707         return error;
 708 }
 709
 710 static __noinline int
 711 ieee80211_ioctl_getstavlan(struct ieee80211vap *vap, struct ieee80211req *ireq)
 712 {
 713         struct ieee80211_node *ni;
 714         struct ieee80211req_sta_vlan vlan;
 715         int error;
 716
 717         if (ireq->i_len != sizeof(vlan))
 718                 return EINVAL;
 719         error = copyin(ireq->i_data, &vlan, sizeof(vlan));
 720         if (error != 0)
 721                 return error;
 722         if (!IEEE80211_ADDR_EQ(vlan.sv_macaddr, zerobssid)) {
 723                 ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap,
 724                     vlan.sv_macaddr);
 725                 if (ni == NULL)
 726                         return ENOENT;
 727         } else
 728                 ni = ieee80211_ref_node(vap->iv_bss);
 729         vlan.sv_vlan = ni->ni_vlan;
 730         error = copyout(&vlan, ireq->i_data, sizeof(vlan));
 731         ieee80211_free_node(ni);
 732         return error;
 733 }
 734
 735 /*
 736  * Dummy ioctl get handler so the linker set is defined.
 737  */
 738 static int
 739 dummy_ioctl_get(struct ieee80211vap *vap, struct ieee80211req *ireq)
 740 {
 741         return ENOSYS;
 742 }
 743 IEEE80211_IOCTL_GET(dummy, dummy_ioctl_get);
 744
 745 static int
 746 ieee80211_ioctl_getdefault(struct ieee80211vap *vap, struct ieee80211req *ireq)
 747 {
 748         ieee80211_ioctl_getfunc * const *get;
 749         int error;
 750
 751         SET_FOREACH(get, ieee80211_ioctl_getset) {
 752                 error = (*get)(vap, ireq);
 753                 if (error != ENOSYS)
 754                         return error;
 755         }
 756         return EINVAL;
 757 }
 758
 759 /*
 760  * When building the kernel with -O2 on the i386 architecture, gcc
 761  * seems to want to inline this function into ieee80211_ioctl()
 762  * (which is the only routine that calls it). When this happens,
 763  * ieee80211_ioctl() ends up consuming an additional 2K of stack
 764  * space. (Exactly why it needs so much is unclear.) The problem
 765  * is that it's possible for ieee80211_ioctl() to invoke other
 766  * routines (including driver init functions) which could then find
 767  * themselves perilously close to exhausting the stack.
 768  *
 769  * To avoid this, we deliberately prevent gcc from inlining this
 770  * routine. Another way to avoid this is to use less agressive
 771  * optimization when compiling this file (i.e. -O instead of -O2)
 772  * but special-casing the compilation of this one module in the
 773  * build system would be awkward.
 774  */
 775 static __noinline int
 776 ieee80211_ioctl_get80211(struct ieee80211vap *vap, u_long cmd,
 777     struct ieee80211req *ireq)
 778 {
 779 #define MS(_v, _f)      (((_v) & _f) >> _f##_S)
 780         struct ieee80211com *ic = vap->iv_ic;
 781         u_int kid, len;
 782         uint8_t tmpkey[IEEE80211_KEYBUF_SIZE];
 783         char tmpssid[IEEE80211_NWID_LEN];
 784         int error = 0;
 785
 786         switch (ireq->i_type) {
 787         case IEEE80211_IOC_SSID:
 788                 switch (vap->iv_state) {
 789                 case IEEE80211_S_INIT:
 790                 case IEEE80211_S_SCAN:
 791                         ireq->i_len = vap->iv_des_ssid[0].len;
 792                         memcpy(tmpssid, vap->iv_des_ssid[0].ssid, ireq->i_len);
 793                         break;
 794                 default:
 795                         ireq->i_len = vap->iv_bss->ni_esslen;
 796                         memcpy(tmpssid, vap->iv_bss->ni_essid, ireq->i_len);
 797                         break;
 798                 }
 799                 error = copyout(tmpssid, ireq->i_data, ireq->i_len);
 800                 break;
 801         case IEEE80211_IOC_NUMSSIDS:
 802                 ireq->i_val = 1;
 803                 break;
 804         case IEEE80211_IOC_WEP:
 805                 if ((vap->iv_flags & IEEE80211_F_PRIVACY) == 0)
 806                         ireq->i_val = IEEE80211_WEP_OFF;
 807                 else if (vap->iv_flags & IEEE80211_F_DROPUNENC)
 808                         ireq->i_val = IEEE80211_WEP_ON;
 809                 else
 810                         ireq->i_val = IEEE80211_WEP_MIXED;
 811                 break;
 812         case IEEE80211_IOC_WEPKEY:
 813                 kid = (u_int) ireq->i_val;
 814                 if (kid >= IEEE80211_WEP_NKID)
 815                         return EINVAL;
 816                 len = (u_int) vap->iv_nw_keys[kid].wk_keylen;
 817                 /* NB: only root can read WEP keys */
 818                 if (priv_check(curthread, PRIV_NET80211_GETKEY) == 0) {
 819                         bcopy(vap->iv_nw_keys[kid].wk_key, tmpkey, len);
 820                 } else {
 821                         bzero(tmpkey, len);
 822                 }
 823                 ireq->i_len = len;
 824                 error = copyout(tmpkey, ireq->i_data, len);
 825                 break;
 826         case IEEE80211_IOC_NUMWEPKEYS:
 827                 ireq->i_val = IEEE80211_WEP_NKID;
 828                 break;
 829         case IEEE80211_IOC_WEPTXKEY:
 830                 ireq->i_val = vap->iv_def_txkey;
 831                 break;
 832         case IEEE80211_IOC_AUTHMODE:
 833                 if (vap->iv_flags & IEEE80211_F_WPA)
 834                         ireq->i_val = IEEE80211_AUTH_WPA;
 835                 else
 836                         ireq->i_val = vap->iv_bss->ni_authmode;
 837                 break;
 838         case IEEE80211_IOC_CHANNEL:
 839                 ireq->i_val = ieee80211_chan2ieee(ic, ic->ic_curchan);
 840                 break;
 841         case IEEE80211_IOC_POWERSAVE:
 842                 if (vap->iv_flags & IEEE80211_F_PMGTON)
 843                         ireq->i_val = IEEE80211_POWERSAVE_ON;
 844                 else
 845                         ireq->i_val = IEEE80211_POWERSAVE_OFF;
 846                 break;
 847         case IEEE80211_IOC_POWERSAVESLEEP:
 848                 ireq->i_val = ic->ic_lintval;
 849                 break;
 850         case IEEE80211_IOC_RTSTHRESHOLD:
 851                 ireq->i_val = vap->iv_rtsthreshold;
 852                 break;
 853         case IEEE80211_IOC_PROTMODE:
 854                 ireq->i_val = ic->ic_protmode;
 855                 break;
 856         case IEEE80211_IOC_TXPOWER:
 857                 /*
 858                  * Tx power limit is the min of max regulatory
 859                  * power, any user-set limit, and the max the
 860                  * radio can do.
 861                  */
 862                 ireq->i_val = 2*ic->ic_curchan->ic_maxregpower;
 863                 if (ireq->i_val > ic->ic_txpowlimit)
 864                         ireq->i_val = ic->ic_txpowlimit;
 865                 if (ireq->i_val > ic->ic_curchan->ic_maxpower)
 866                         ireq->i_val = ic->ic_curchan->ic_maxpower;
 867                 break;
 868         case IEEE80211_IOC_WPA:
 869                 switch (vap->iv_flags & IEEE80211_F_WPA) {
 870                 case IEEE80211_F_WPA1:
 871                         ireq->i_val = 1;
 872                         break;
 873                 case IEEE80211_F_WPA2:
 874                         ireq->i_val = 2;
 875                         break;
 876                 case IEEE80211_F_WPA1 | IEEE80211_F_WPA2:
 877                         ireq->i_val = 3;
 878                         break;
 879                 default:
 880                         ireq->i_val = 0;
 881                         break;
 882                 }
 883                 break;
 884         case IEEE80211_IOC_CHANLIST:
 885                 error = ieee80211_ioctl_getchanlist(vap, ireq);
 886                 break;
 887         case IEEE80211_IOC_ROAMING:
 888                 ireq->i_val = vap->iv_roaming;
 889                 break;
 890         case IEEE80211_IOC_PRIVACY:
 891                 ireq->i_val = (vap->iv_flags & IEEE80211_F_PRIVACY) != 0;
 892                 break;
 893         case IEEE80211_IOC_DROPUNENCRYPTED:
 894                 ireq->i_val = (vap->iv_flags & IEEE80211_F_DROPUNENC) != 0;
 895                 break;
 896         case IEEE80211_IOC_COUNTERMEASURES:
 897                 ireq->i_val = (vap->iv_flags & IEEE80211_F_COUNTERM) != 0;
 898                 break;
 899         case IEEE80211_IOC_WME:
 900                 ireq->i_val = (vap->iv_flags & IEEE80211_F_WME) != 0;
 901                 break;
 902         case IEEE80211_IOC_HIDESSID:
 903                 ireq->i_val = (vap->iv_flags & IEEE80211_F_HIDESSID) != 0;
 904                 break;
 905         case IEEE80211_IOC_APBRIDGE:
 906                 ireq->i_val = (vap->iv_flags & IEEE80211_F_NOBRIDGE) == 0;
 907                 break;
 908         case IEEE80211_IOC_WPAKEY:
 909                 error = ieee80211_ioctl_getkey(vap, ireq);
 910                 break;
 911         case IEEE80211_IOC_CHANINFO:
 912                 error = ieee80211_ioctl_getchaninfo(vap, ireq);
 913                 break;
 914         case IEEE80211_IOC_BSSID:
 915                 if (ireq->i_len != IEEE80211_ADDR_LEN)
 916                         return EINVAL;
 917                 if (vap->iv_state == IEEE80211_S_RUN) {
 918                         error = copyout(vap->iv_opmode == IEEE80211_M_WDS ?
 919                             vap->iv_bss->ni_macaddr : vap->iv_bss->ni_bssid,
 920                             ireq->i_data, ireq->i_len);
 921                 } else
 922                         error = copyout(vap->iv_des_bssid, ireq->i_data,
 923                             ireq->i_len);
 924                 break;
 925         case IEEE80211_IOC_WPAIE:
 926                 error = ieee80211_ioctl_getwpaie(vap, ireq, ireq->i_type);
 927                 break;
 928         case IEEE80211_IOC_WPAIE2:
 929                 error = ieee80211_ioctl_getwpaie(vap, ireq, ireq->i_type);
 930                 break;
 931         case IEEE80211_IOC_SCAN_RESULTS:
 932                 error = ieee80211_ioctl_getscanresults(vap, ireq);
 933                 break;
 934         case IEEE80211_IOC_STA_STATS:
 935                 error = ieee80211_ioctl_getstastats(vap, ireq);
 936                 break;
 937         case IEEE80211_IOC_TXPOWMAX:
 938                 ireq->i_val = vap->iv_bss->ni_txpower;
 939                 break;
 940         case IEEE80211_IOC_STA_TXPOW:
 941                 error = ieee80211_ioctl_getstatxpow(vap, ireq);
 942                 break;
 943         case IEEE80211_IOC_STA_INFO:
 944                 error = ieee80211_ioctl_getstainfo(vap, ireq);
 945                 break;
 946         case IEEE80211_IOC_WME_CWMIN:           /* WME: CWmin */
 947         case IEEE80211_IOC_WME_CWMAX:           /* WME: CWmax */
 948         case IEEE80211_IOC_WME_AIFS:            /* WME: AIFS */
 949         case IEEE80211_IOC_WME_TXOPLIMIT:       /* WME: txops limit */
 950         case IEEE80211_IOC_WME_ACM:             /* WME: ACM (bss only) */
 951         case IEEE80211_IOC_WME_ACKPOLICY:       /* WME: ACK policy (bss only) */
 952                 error = ieee80211_ioctl_getwmeparam(vap, ireq);
 953                 break;
 954         case IEEE80211_IOC_DTIM_PERIOD:
 955                 ireq->i_val = vap->iv_dtim_period;
 956                 break;
 957         case IEEE80211_IOC_BEACON_INTERVAL:
 958                 /* NB: get from ic_bss for station mode */
 959                 ireq->i_val = vap->iv_bss->ni_intval;
 960                 break;
 961         case IEEE80211_IOC_PUREG:
 962                 ireq->i_val = (vap->iv_flags & IEEE80211_F_PUREG) != 0;
 963                 break;
 964         case IEEE80211_IOC_BGSCAN:
 965                 ireq->i_val = (vap->iv_flags & IEEE80211_F_BGSCAN) != 0;
 966                 break;
 967         case IEEE80211_IOC_BGSCAN_IDLE:
 968                 ireq->i_val = vap->iv_bgscanidle*hz/1000;       /* ms */
 969                 break;
 970         case IEEE80211_IOC_BGSCAN_INTERVAL:
 971                 ireq->i_val = vap->iv_bgscanintvl/hz;           /* seconds */
 972                 break;
 973         case IEEE80211_IOC_SCANVALID:
 974                 ireq->i_val = vap->iv_scanvalid/hz;             /* seconds */
 975                 break;
 976         case IEEE80211_IOC_FRAGTHRESHOLD:
 977                 ireq->i_val = vap->iv_fragthreshold;
 978                 break;
 979         case IEEE80211_IOC_MACCMD:
 980                 error = ieee80211_ioctl_getmaccmd(vap, ireq);
 981                 break;
 982         case IEEE80211_IOC_BURST:
 983                 ireq->i_val = (vap->iv_flags & IEEE80211_F_BURST) != 0;
 984                 break;
 985         case IEEE80211_IOC_BMISSTHRESHOLD:
 986                 ireq->i_val = vap->iv_bmissthreshold;
 987                 break;
 988         case IEEE80211_IOC_CURCHAN:
 989                 error = ieee80211_ioctl_getcurchan(vap, ireq);
 990                 break;
 991         case IEEE80211_IOC_SHORTGI:
 992                 ireq->i_val = 0;
 993                 if (vap->iv_flags_ext & IEEE80211_FEXT_SHORTGI20)
 994                         ireq->i_val |= IEEE80211_HTCAP_SHORTGI20;
 995                 if (vap->iv_flags_ext & IEEE80211_FEXT_SHORTGI40)
 996                         ireq->i_val |= IEEE80211_HTCAP_SHORTGI40;
 997                 break;
 998         case IEEE80211_IOC_AMPDU:
 999                 ireq->i_val = 0;
1000                 if (vap->iv_flags_ext & IEEE80211_FEXT_AMPDU_TX)
1001                         ireq->i_val |= 1;
1002                 if (vap->iv_flags_ext & IEEE80211_FEXT_AMPDU_RX)
1003                         ireq->i_val |= 2;
1004                 break;
1005         case IEEE80211_IOC_AMPDU_LIMIT:
1006                 if (vap->iv_opmode == IEEE80211_M_HOSTAP)
1007                         ireq->i_val = vap->iv_ampdu_rxmax;
1008                 else if (vap->iv_state == IEEE80211_S_RUN)
1009                         ireq->i_val = MS(vap->iv_bss->ni_htparam,
1010                             IEEE80211_HTCAP_MAXRXAMPDU);
1011                 else
1012                         ireq->i_val = vap->iv_ampdu_limit;
1013                 break;
1014         case IEEE80211_IOC_AMPDU_DENSITY:
1015                 if (vap->iv_opmode == IEEE80211_M_STA &&
1016                     vap->iv_state == IEEE80211_S_RUN)
1017                         ireq->i_val = MS(vap->iv_bss->ni_htparam,
1018                             IEEE80211_HTCAP_MPDUDENSITY);
1019                 else
1020                         ireq->i_val = vap->iv_ampdu_density;
1021                 break;
1022         case IEEE80211_IOC_AMSDU:
1023                 ireq->i_val = 0;
1024                 if (vap->iv_flags_ext & IEEE80211_FEXT_AMSDU_TX)
1025                         ireq->i_val |= 1;
1026                 if (vap->iv_flags_ext & IEEE80211_FEXT_AMSDU_RX)
1027                         ireq->i_val |= 2;
1028                 break;
1029         case IEEE80211_IOC_AMSDU_LIMIT:
1030                 ireq->i_val = vap->iv_amsdu_limit;      /* XXX truncation? */
1031                 break;
1032         case IEEE80211_IOC_PUREN:
1033                 ireq->i_val = (vap->iv_flags_ext & IEEE80211_FEXT_PUREN) != 0;
1034                 break;
1035         case IEEE80211_IOC_DOTH:
1036                 ireq->i_val = (vap->iv_flags & IEEE80211_F_DOTH) != 0;
1037                 break;
1038         case IEEE80211_IOC_REGDOMAIN:
1039                 error = ieee80211_ioctl_getregdomain(vap, ireq);
1040                 break;
1041         case IEEE80211_IOC_ROAM:
1042                 error = ieee80211_ioctl_getroam(vap, ireq);
1043                 break;
1044         case IEEE80211_IOC_TXPARAMS:
1045                 error = ieee80211_ioctl_gettxparams(vap, ireq);
1046                 break;
1047         case IEEE80211_IOC_HTCOMPAT:
1048                 ireq->i_val = (vap->iv_flags_ext & IEEE80211_FEXT_HTCOMPAT) != 0;
1049                 break;
1050         case IEEE80211_IOC_DWDS:
1051                 ireq->i_val = (vap->iv_flags & IEEE80211_F_DWDS) != 0;
1052                 break;
1053         case IEEE80211_IOC_INACTIVITY:
1054                 ireq->i_val = (vap->iv_flags_ext & IEEE80211_FEXT_INACT) != 0;
1055                 break;
1056         case IEEE80211_IOC_APPIE:
1057                 error = ieee80211_ioctl_getappie(vap, ireq);
1058                 break;
1059         case IEEE80211_IOC_WPS:
1060                 ireq->i_val = (vap->iv_flags_ext & IEEE80211_FEXT_WPS) != 0;
1061                 break;
1062         case IEEE80211_IOC_TSN:
1063                 ireq->i_val = (vap->iv_flags_ext & IEEE80211_FEXT_TSN) != 0;
1064                 break;
1065         case IEEE80211_IOC_DFS:
1066                 ireq->i_val = (vap->iv_flags_ext & IEEE80211_FEXT_DFS) != 0;
1067                 break;
1068         case IEEE80211_IOC_DOTD:
1069                 ireq->i_val = (vap->iv_flags_ext & IEEE80211_FEXT_DOTD) != 0;
1070                 break;
1071         case IEEE80211_IOC_DEVCAPS:
1072                 error = ieee80211_ioctl_getdevcaps(ic, ireq);
1073                 break;
1074         case IEEE80211_IOC_HTPROTMODE:
1075                 ireq->i_val = ic->ic_htprotmode;
1076                 break;
1077         case IEEE80211_IOC_HTCONF:
1078                 if (vap->iv_flags_ext & IEEE80211_FEXT_HT) {
1079                         ireq->i_val = 1;
1080                         if (vap->iv_flags_ext & IEEE80211_FEXT_USEHT40)
1081                                 ireq->i_val |= 2;
1082                 } else
1083                         ireq->i_val = 0;
1084                 break;
1085         case IEEE80211_IOC_STA_VLAN:
1086                 error = ieee80211_ioctl_getstavlan(vap, ireq);
1087                 break;
1088         case IEEE80211_IOC_SMPS:
1089                 if (vap->iv_opmode == IEEE80211_M_STA &&
1090                     vap->iv_state == IEEE80211_S_RUN) {
1091                         if (vap->iv_bss->ni_flags & IEEE80211_NODE_MIMO_RTS)
1092                                 ireq->i_val = IEEE80211_HTCAP_SMPS_DYNAMIC;
1093                         else if (vap->iv_bss->ni_flags & IEEE80211_NODE_MIMO_PS)
1094                                 ireq->i_val = IEEE80211_HTCAP_SMPS_ENA;
1095                         else
1096                                 ireq->i_val = IEEE80211_HTCAP_SMPS_OFF;
1097                 } else
1098                         ireq->i_val = vap->iv_htcaps & IEEE80211_HTCAP_SMPS;
1099                 break;
1100         case IEEE80211_IOC_RIFS:
1101                 if (vap->iv_opmode == IEEE80211_M_STA &&
1102                     vap->iv_state == IEEE80211_S_RUN)
1103                         ireq->i_val =
1104                             (vap->iv_bss->ni_flags & IEEE80211_NODE_RIFS) != 0;
1105                 else
1106                         ireq->i_val =
1107                             (vap->iv_flags_ext & IEEE80211_FEXT_RIFS) != 0;
1108                 break;
1109         default:
1110                 error = ieee80211_ioctl_getdefault(vap, ireq);
1111                 break;
1112         }
1113         return error;
1114 #undef MS
1115 }
1116
1117 static __noinline int
1118 ieee80211_ioctl_setkey(struct ieee80211vap *vap, struct ieee80211req *ireq)
1119 {
1120         struct ieee80211req_key ik;
1121         struct ieee80211_node *ni;
1122         struct ieee80211_key *wk;
1123         uint16_t kid;
1124         int error, i;
1125
1126         if (ireq->i_len != sizeof(ik))
1127                 return EINVAL;
1128         error = copyin(ireq->i_data, &ik, sizeof(ik));
1129         if (error)
1130                 return error;
1131         /* NB: cipher support is verified by ieee80211_crypt_newkey */
1132         /* NB: this also checks ik->ik_keylen > sizeof(wk->wk_key) */
1133         if (ik.ik_keylen > sizeof(ik.ik_keydata))
1134                 return E2BIG;
1135         kid = ik.ik_keyix;
1136         if (kid == IEEE80211_KEYIX_NONE) {
1137                 /* XXX unicast keys currently must be tx/rx */
1138                 if (ik.ik_flags != (IEEE80211_KEY_XMIT | IEEE80211_KEY_RECV))
1139                         return EINVAL;
1140                 if (vap->iv_opmode == IEEE80211_M_STA) {
1141                         ni = ieee80211_ref_node(vap->iv_bss);
1142                         if (!IEEE80211_ADDR_EQ(ik.ik_macaddr, ni->ni_bssid)) {
1143                                 ieee80211_free_node(ni);
1144                                 return EADDRNOTAVAIL;
1145                         }
1146                 } else {
1147                         ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap,
1148                                 ik.ik_macaddr);
1149                         if (ni == NULL)
1150                                 return ENOENT;
1151                 }
1152                 wk = &ni->ni_ucastkey;
1153         } else {
1154                 if (kid >= IEEE80211_WEP_NKID)
1155                         return EINVAL;
1156                 wk = &vap->iv_nw_keys[kid];
1157                 /*
1158                  * Global slots start off w/o any assigned key index.
1159                  * Force one here for consistency with IEEE80211_IOC_WEPKEY.
1160                  */
1161                 if (wk->wk_keyix == IEEE80211_KEYIX_NONE)
1162                         wk->wk_keyix = kid;
1163                 ni = NULL;
1164         }
1165         error = 0;
1166         ieee80211_key_update_begin(vap);
1167         if (ieee80211_crypto_newkey(vap, ik.ik_type, ik.ik_flags, wk)) {
1168                 wk->wk_keylen = ik.ik_keylen;
1169                 /* NB: MIC presence is implied by cipher type */
1170                 if (wk->wk_keylen > IEEE80211_KEYBUF_SIZE)
1171                         wk->wk_keylen = IEEE80211_KEYBUF_SIZE;
1172                 for (i = 0; i < IEEE80211_TID_SIZE; i++)
1173                         wk->wk_keyrsc[i] = ik.ik_keyrsc;
1174                 wk->wk_keytsc = 0;                      /* new key, reset */
1175                 memset(wk->wk_key, 0, sizeof(wk->wk_key));
1176                 memcpy(wk->wk_key, ik.ik_keydata, ik.ik_keylen);
1177                 IEEE80211_ADDR_COPY(wk->wk_macaddr,
1178                     ni != NULL ?  ni->ni_macaddr : ik.ik_macaddr);
1179                 if (!ieee80211_crypto_setkey(vap, wk))
1180                         error = EIO;
1181                 else if ((ik.ik_flags & IEEE80211_KEY_DEFAULT))
1182                         vap->iv_def_txkey = kid;
1183         } else
1184                 error = ENXIO;
1185         ieee80211_key_update_end(vap);
1186         if (ni != NULL)
1187                 ieee80211_free_node(ni);
1188         return error;
1189 }
1190
1191 static __noinline int
1192 ieee80211_ioctl_delkey(struct ieee80211vap *vap, struct ieee80211req *ireq)
1193 {
1194         struct ieee80211req_del_key dk;
1195         int kid, error;
1196
1197         if (ireq->i_len != sizeof(dk))
1198                 return EINVAL;
1199         error = copyin(ireq->i_data, &dk, sizeof(dk));
1200         if (error)
1201                 return error;
1202         kid = dk.idk_keyix;
1203         /* XXX uint8_t -> uint16_t */
1204         if (dk.idk_keyix == (uint8_t) IEEE80211_KEYIX_NONE) {
1205                 struct ieee80211_node *ni;
1206
1207                 if (vap->iv_opmode == IEEE80211_M_STA) {
1208                         ni = ieee80211_ref_node(vap->iv_bss);
1209                         if (!IEEE80211_ADDR_EQ(dk.idk_macaddr, ni->ni_bssid)) {
1210                                 ieee80211_free_node(ni);
1211                                 return EADDRNOTAVAIL;
1212                         }
1213                 } else {
1214                         ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap,
1215                                 dk.idk_macaddr);
1216                         if (ni == NULL)
1217                                 return ENOENT;
1218                 }
1219                 /* XXX error return */
1220                 ieee80211_node_delucastkey(ni);
1221                 ieee80211_free_node(ni);
1222         } else {
1223                 if (kid >= IEEE80211_WEP_NKID)
1224                         return EINVAL;
1225                 /* XXX error return */
1226                 ieee80211_crypto_delkey(vap, &vap->iv_nw_keys[kid]);
1227         }
1228         return 0;
1229 }
1230
1231 struct mlmeop {
1232         struct ieee80211vap *vap;
1233         int     op;
1234         int     reason;
1235 };
1236
1237 static void
1238 mlmedebug(struct ieee80211vap *vap, const uint8_t mac[IEEE80211_ADDR_LEN],
1239         int op, int reason)
1240 {
1241 #ifdef IEEE80211_DEBUG
1242         static const struct {
1243                 int mask;
1244                 const char *opstr;
1245         } ops[] = {
1246                 { 0, "op#0" },
1247                 { IEEE80211_MSG_IOCTL | IEEE80211_MSG_STATE |
1248                   IEEE80211_MSG_ASSOC, "assoc" },
1249                 { IEEE80211_MSG_IOCTL | IEEE80211_MSG_STATE |
1250                   IEEE80211_MSG_ASSOC, "disassoc" },
1251                 { IEEE80211_MSG_IOCTL | IEEE80211_MSG_STATE |
1252                   IEEE80211_MSG_AUTH, "deauth" },
1253                 { IEEE80211_MSG_IOCTL | IEEE80211_MSG_STATE |
1254                   IEEE80211_MSG_AUTH, "authorize" },
1255                 { IEEE80211_MSG_IOCTL | IEEE80211_MSG_STATE |
1256                   IEEE80211_MSG_AUTH, "unauthorize" },
1257         };
1258
1259         if (op == IEEE80211_MLME_AUTH) {
1260                 IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_IOCTL |
1261                     IEEE80211_MSG_STATE | IEEE80211_MSG_AUTH, mac,
1262                     "station authenticate %s via MLME (reason %d)",
1263                     reason == IEEE80211_STATUS_SUCCESS ? "ACCEPT" : "REJECT",
1264                     reason);
1265         } else if (!(IEEE80211_MLME_ASSOC <= op && op <= IEEE80211_MLME_AUTH)) {
1266                 IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_ANY, mac,
1267                     "unknown MLME request %d (reason %d)", op, reason);
1268         } else if (reason == IEEE80211_STATUS_SUCCESS) {
1269                 IEEE80211_NOTE_MAC(vap, ops[op].mask, mac,
1270                     "station %s via MLME", ops[op].opstr);
1271         } else {
1272                 IEEE80211_NOTE_MAC(vap, ops[op].mask, mac,
1273                     "station %s via MLME (reason %d)", ops[op].opstr, reason);
1274         }
1275 #endif /* IEEE80211_DEBUG */
1276 }
1277
1278 static void
1279 domlme(void *arg, struct ieee80211_node *ni)
1280 {
1281         struct mlmeop *mop = arg;
1282         struct ieee80211vap *vap = ni->ni_vap;
1283
1284         if (vap != mop->vap)
1285                 return;
1286         /*
1287          * NB: if ni_associd is zero then the node is already cleaned
1288          * up and we don't need to do this (we're safely holding a
1289          * reference but should otherwise not modify it's state).
1290          */
1291         if (ni->ni_associd == 0)
1292                 return;
1293         mlmedebug(vap, ni->ni_macaddr, mop->op, mop->reason);
1294         if (mop->op == IEEE80211_MLME_DEAUTH) {
1295                 IEEE80211_SEND_MGMT(ni, IEEE80211_FC0_SUBTYPE_DEAUTH,
1296                     mop->reason);
1297         } else {
1298                 IEEE80211_SEND_MGMT(ni, IEEE80211_FC0_SUBTYPE_DISASSOC,
1299                     mop->reason);
1300         }
1301         ieee80211_node_leave(ni);
1302 }
1303
1304 static int
1305 setmlme_dropsta(struct ieee80211vap *vap,
1306         const uint8_t mac[IEEE80211_ADDR_LEN], struct mlmeop *mlmeop)
1307 {
1308         struct ieee80211com *ic = vap->iv_ic;
1309         struct ieee80211_node_table *nt = &ic->ic_sta;
1310         struct ieee80211_node *ni;
1311         int error = 0;
1312
1313         /* NB: the broadcast address means do 'em all */
1314         if (!IEEE80211_ADDR_EQ(mac, ic->ic_ifp->if_broadcastaddr)) {
1315                 IEEE80211_NODE_LOCK(nt);
1316                 ni = ieee80211_find_node_locked(nt, mac);
1317                 if (ni != NULL) {
1318                         domlme(mlmeop, ni);
1319                         ieee80211_free_node(ni);
1320                 } else
1321                         error = ENOENT;
1322                 IEEE80211_NODE_UNLOCK(nt);
1323         } else {
1324                 ieee80211_iterate_nodes(nt, domlme, mlmeop);
1325         }
1326         return error;
1327 }
1328
1329 static __noinline int
1330 setmlme_common(struct ieee80211vap *vap, int op,
1331         const uint8_t mac[IEEE80211_ADDR_LEN], int reason)
1332 {
1333         struct ieee80211com *ic = vap->iv_ic;
1334         struct ieee80211_node_table *nt = &ic->ic_sta;
1335         struct ieee80211_node *ni;
1336         struct mlmeop mlmeop;
1337         int error;
1338
1339         error = 0;
1340         switch (op) {
1341         case IEEE80211_MLME_DISASSOC:
1342         case IEEE80211_MLME_DEAUTH:
1343                 switch (vap->iv_opmode) {
1344                 case IEEE80211_M_STA:
1345                         mlmedebug(vap, vap->iv_bss->ni_macaddr, op, reason);
1346                         /* XXX not quite right */
1347                         ieee80211_new_state(vap, IEEE80211_S_INIT, reason);
1348                         break;
1349                 case IEEE80211_M_HOSTAP:
1350                         mlmeop.vap = vap;
1351                         mlmeop.op = op;
1352                         mlmeop.reason = reason;
1353                         error = setmlme_dropsta(vap, mac, &mlmeop);
1354                         break;
1355                 case IEEE80211_M_WDS:
1356                         /* XXX user app should send raw frame? */
1357                         if (op != IEEE80211_MLME_DEAUTH) {
1358                                 error = EINVAL;
1359                                 break;
1360                         }
1361 #if 0
1362                         /* XXX accept any address, simplifies user code */
1363                         if (!IEEE80211_ADDR_EQ(mac, vap->iv_bss->ni_macaddr)) {
1364                                 error = EINVAL;
1365                                 break;
1366                         }
1367 #endif
1368                         mlmedebug(vap, vap->iv_bss->ni_macaddr, op, reason);
1369                         ni = ieee80211_ref_node(vap->iv_bss);
1370                         IEEE80211_SEND_MGMT(ni,
1371                             IEEE80211_FC0_SUBTYPE_DEAUTH, reason);
1372                         ieee80211_free_node(ni);
1373                         break;
1374                 default:
1375                         error = EINVAL;
1376                         break;
1377                 }
1378                 break;
1379         case IEEE80211_MLME_AUTHORIZE:
1380         case IEEE80211_MLME_UNAUTHORIZE:
1381                 if (vap->iv_opmode != IEEE80211_M_HOSTAP &&
1382                     vap->iv_opmode != IEEE80211_M_WDS) {
1383                         error = EINVAL;
1384                         break;
1385                 }
1386                 IEEE80211_NODE_LOCK(nt);
1387                 ni = ieee80211_find_vap_node_locked(nt, vap, mac);
1388                 if (ni != NULL) {
1389                         mlmedebug(vap, mac, op, reason);
1390                         if (op == IEEE80211_MLME_AUTHORIZE)
1391                                 ieee80211_node_authorize(ni);
1392                         else
1393                                 ieee80211_node_unauthorize(ni);
1394                         ieee80211_free_node(ni);
1395                 } else
1396                         error = ENOENT;
1397                 IEEE80211_NODE_UNLOCK(nt);
1398                 break;
1399         case IEEE80211_MLME_AUTH:
1400                 if (vap->iv_opmode != IEEE80211_M_HOSTAP) {
1401                         error = EINVAL;
1402                         break;
1403                 }
1404                 IEEE80211_NODE_LOCK(nt);
1405                 ni = ieee80211_find_vap_node_locked(nt, vap, mac);
1406                 if (ni != NULL) {
1407                         mlmedebug(vap, mac, op, reason);
1408                         if (reason == IEEE80211_STATUS_SUCCESS) {
1409                                 IEEE80211_SEND_MGMT(ni,
1410                                     IEEE80211_FC0_SUBTYPE_AUTH, 2);
1411                                 /*
1412                                  * For shared key auth, just continue the
1413                                  * exchange.  Otherwise when 802.1x is not in
1414                                  * use mark the port authorized at this point
1415                                  * so traffic can flow.
1416                                  */
1417                                 if (ni->ni_authmode != IEEE80211_AUTH_8021X &&
1418                                     ni->ni_challenge == NULL)
1419                                       ieee80211_node_authorize(ni);
1420                         } else {
1421                                 vap->iv_stats.is_rx_acl++;
1422                                 ieee80211_send_error(ni, ni->ni_macaddr,
1423                                     IEEE80211_FC0_SUBTYPE_AUTH, 2|(reason<<16));
1424                                 ieee80211_node_leave(ni);
1425                         }
1426                         ieee80211_free_node(ni);
1427                 } else
1428                         error = ENOENT;
1429                 IEEE80211_NODE_UNLOCK(nt);
1430                 break;
1431         default:
1432                 error = EINVAL;
1433                 break;
1434         }
1435         return error;
1436 }
1437
1438 struct scanlookup {
1439         const uint8_t *mac;
1440         int esslen;
1441         const uint8_t *essid;
1442         const struct ieee80211_scan_entry *se;
1443 };
1444
1445 /*
1446  * Match mac address and any ssid.
1447  */
1448 static void
1449 mlmelookup(void *arg, const struct ieee80211_scan_entry *se)
1450 {
1451         struct scanlookup *look = arg;
1452
1453         if (!IEEE80211_ADDR_EQ(look->mac, se->se_macaddr))
1454                 return;
1455         if (look->esslen != 0) {
1456                 if (se->se_ssid[1] != look->esslen)
1457                         return;
1458                 if (memcmp(look->essid, se->se_ssid+2, look->esslen))
1459                         return;
1460         }
1461         look->se = se;
1462 }
1463
1464 static __noinline int
1465 setmlme_assoc(struct ieee80211vap *vap, const uint8_t mac[IEEE80211_ADDR_LEN],
1466         int ssid_len, const uint8_t ssid[IEEE80211_NWID_LEN])
1467 {
1468         struct scanlookup lookup;
1469
1470         /* XXX ibss/ahdemo */
1471         if (vap->iv_opmode != IEEE80211_M_STA)
1472                 return EINVAL;
1473
1474         /* NB: this is racey if roaming is !manual */
1475         lookup.se = NULL;
1476         lookup.mac = mac;
1477         lookup.esslen = ssid_len;
1478         lookup.essid = ssid;
1479         ieee80211_scan_iterate(vap, mlmelookup, &lookup);
1480         if (lookup.se == NULL)
1481                 return ENOENT;
1482         mlmedebug(vap, mac, IEEE80211_MLME_ASSOC, 0);
1483         if (!ieee80211_sta_join(vap, lookup.se->se_chan, lookup.se))
1484                 return EIO;             /* XXX unique but could be better */
1485         return 0;
1486 }
1487
1488 static __noinline int
1489 ieee80211_ioctl_setmlme(struct ieee80211vap *vap, struct ieee80211req *ireq)
1490 {
1491         struct ieee80211req_mlme mlme;
1492         int error;
1493
1494         if (ireq->i_len != sizeof(mlme))
1495                 return EINVAL;
1496         error = copyin(ireq->i_data, &mlme, sizeof(mlme));
1497         if (error)
1498                 return error;
1499         if  (mlme.im_op == IEEE80211_MLME_ASSOC)
1500                 return setmlme_assoc(vap, mlme.im_macaddr,
1501                     vap->iv_des_ssid[0].len, vap->iv_des_ssid[0].ssid);
1502         else
1503                 return setmlme_common(vap, mlme.im_op,
1504                     mlme.im_macaddr, mlme.im_reason);
1505 }
1506
1507 static __noinline int
1508 ieee80211_ioctl_macmac(struct ieee80211vap *vap, struct ieee80211req *ireq)
1509 {
1510         uint8_t mac[IEEE80211_ADDR_LEN];
1511         const struct ieee80211_aclator *acl = vap->iv_acl;
1512         int error;
1513
1514         if (ireq->i_len != sizeof(mac))
1515                 return EINVAL;
1516         error = copyin(ireq->i_data, mac, ireq->i_len);
1517         if (error)
1518                 return error;
1519         if (acl == NULL) {
1520                 acl = ieee80211_aclator_get("mac");
1521                 if (acl == NULL || !acl->iac_attach(vap))
1522                         return EINVAL;
1523                 vap->iv_acl = acl;
1524         }
1525         if (ireq->i_type == IEEE80211_IOC_ADDMAC)
1526                 acl->iac_add(vap, mac);
1527         else
1528                 acl->iac_remove(vap, mac);
1529         return 0;
1530 }
1531
1532 static __noinline int
1533 ieee80211_ioctl_setmaccmd(struct ieee80211vap *vap, struct ieee80211req *ireq)
1534 {
1535         const struct ieee80211_aclator *acl = vap->iv_acl;
1536
1537         switch (ireq->i_val) {
1538         case IEEE80211_MACCMD_POLICY_OPEN:
1539         case IEEE80211_MACCMD_POLICY_ALLOW:
1540         case IEEE80211_MACCMD_POLICY_DENY:
1541         case IEEE80211_MACCMD_POLICY_RADIUS:
1542                 if (acl == NULL) {
1543                         acl = ieee80211_aclator_get("mac");
1544                         if (acl == NULL || !acl->iac_attach(vap))
1545                                 return EINVAL;
1546                         vap->iv_acl = acl;
1547                 }
1548                 acl->iac_setpolicy(vap, ireq->i_val);
1549                 break;
1550         case IEEE80211_MACCMD_FLUSH:
1551                 if (acl != NULL)
1552                         acl->iac_flush(vap);
1553                 /* NB: silently ignore when not in use */
1554                 break;
1555         case IEEE80211_MACCMD_DETACH:
1556                 if (acl != NULL) {
1557                         vap->iv_acl = NULL;
1558                         acl->iac_detach(vap);
1559                 }
1560                 break;
1561         default:
1562                 if (acl == NULL)
1563                         return EINVAL;
1564                 else
1565                         return acl->iac_setioctl(vap, ireq);
1566         }
1567         return 0;
1568 }
1569
1570 static __noinline int
1571 ieee80211_ioctl_setchanlist(struct ieee80211vap *vap, struct ieee80211req *ireq)
1572 {
1573         struct ieee80211com *ic = vap->iv_ic;
1574         uint8_t *chanlist, *list;
1575         int i, nchan, maxchan, error;
1576
1577         if (ireq->i_len > sizeof(ic->ic_chan_active))
1578                 ireq->i_len = sizeof(ic->ic_chan_active);
1579         list = malloc(ireq->i_len + IEEE80211_CHAN_BYTES, M_TEMP,
1580             M_NOWAIT | M_ZERO);
1581         if (list == NULL)
1582                 return ENOMEM;
1583         error = copyin(ireq->i_data, list, ireq->i_len);
1584         if (error)
1585                 return error;
1586         nchan = 0;
1587         chanlist = list + ireq->i_len;          /* NB: zero'd already */
1588         maxchan = ireq->i_len * NBBY;
1589         for (i = 0; i < ic->ic_nchans; i++) {
1590                 const struct ieee80211_channel *c = &ic->ic_channels[i];
1591                 /*
1592                  * Calculate the intersection of the user list and the
1593                  * available channels so users can do things like specify
1594                  * 1-255 to get all available channels.
1595                  */
1596                 if (c->ic_ieee < maxchan && isset(list, c->ic_ieee)) {
1597                         setbit(chanlist, c->ic_ieee);
1598                         nchan++;
1599                 }
1600         }
1601         if (nchan == 0)
1602                 return EINVAL;
1603         if (ic->ic_bsschan != IEEE80211_CHAN_ANYC &&    /* XXX */
1604             isclr(chanlist, ic->ic_bsschan->ic_ieee))
1605                 ic->ic_bsschan = IEEE80211_CHAN_ANYC;
1606         memcpy(ic->ic_chan_active, chanlist, IEEE80211_CHAN_BYTES);
1607         ieee80211_scan_flush(vap);
1608         free(list, M_TEMP);
1609         return ENETRESET;
1610 }
1611
1612 static __noinline int
1613 ieee80211_ioctl_setstastats(struct ieee80211vap *vap, struct ieee80211req *ireq)
1614 {
1615         struct ieee80211_node *ni;
1616         uint8_t macaddr[IEEE80211_ADDR_LEN];
1617         int error;
1618
1619         /*
1620          * NB: we could copyin ieee80211req_sta_stats so apps
1621          *     could make selective changes but that's overkill;
1622          *     just clear all stats for now.
1623          */
1624         if (ireq->i_len < IEEE80211_ADDR_LEN)
1625                 return EINVAL;
1626         error = copyin(ireq->i_data, macaddr, IEEE80211_ADDR_LEN);
1627         if (error != 0)
1628                 return error;
1629         ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap, macaddr);
1630         if (ni == NULL)
1631                 return ENOENT;
1632         /* XXX require ni_vap == vap? */
1633         memset(&ni->ni_stats, 0, sizeof(ni->ni_stats));
1634         ieee80211_free_node(ni);
1635         return 0;
1636 }
1637
1638 static __noinline int
1639 ieee80211_ioctl_setstatxpow(struct ieee80211vap *vap, struct ieee80211req *ireq)
1640 {
1641         struct ieee80211_node *ni;
1642         struct ieee80211req_sta_txpow txpow;
1643         int error;
1644
1645         if (ireq->i_len != sizeof(txpow))
1646                 return EINVAL;
1647         error = copyin(ireq->i_data, &txpow, sizeof(txpow));
1648         if (error != 0)
1649                 return error;
1650         ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap, txpow.it_macaddr);
1651         if (ni == NULL)
1652                 return ENOENT;
1653         ni->ni_txpower = txpow.it_txpow;
1654         ieee80211_free_node(ni);
1655         return error;
1656 }
1657
1658 static __noinline int
1659 ieee80211_ioctl_setwmeparam(struct ieee80211vap *vap, struct ieee80211req *ireq)
1660 {
1661         struct ieee80211com *ic = vap->iv_ic;
1662         struct ieee80211_wme_state *wme = &ic->ic_wme;
1663         struct wmeParams *wmep, *chanp;
1664         int isbss, ac;
1665
1666         if ((ic->ic_caps & IEEE80211_C_WME) == 0)
1667                 return EOPNOTSUPP;
1668
1669         isbss = (ireq->i_len & IEEE80211_WMEPARAM_BSS);
1670         ac = (ireq->i_len & IEEE80211_WMEPARAM_VAL);
1671         if (ac >= WME_NUM_AC)
1672                 ac = WME_AC_BE;
1673         if (isbss) {
1674                 chanp = &wme->wme_bssChanParams.cap_wmeParams[ac];
1675                 wmep = &wme->wme_wmeBssChanParams.cap_wmeParams[ac];
1676         } else {
1677                 chanp = &wme->wme_chanParams.cap_wmeParams[ac];
1678                 wmep = &wme->wme_wmeChanParams.cap_wmeParams[ac];
1679         }
1680         switch (ireq->i_type) {
1681         case IEEE80211_IOC_WME_CWMIN:           /* WME: CWmin */
1682                 if (isbss) {
1683                         wmep->wmep_logcwmin = ireq->i_val;
1684                         if ((wme->wme_flags & WME_F_AGGRMODE) == 0)
1685                                 chanp->wmep_logcwmin = ireq->i_val;
1686                 } else {
1687                         wmep->wmep_logcwmin = chanp->wmep_logcwmin =
1688                                 ireq->i_val;
1689                 }
1690                 break;
1691         case IEEE80211_IOC_WME_CWMAX:           /* WME: CWmax */
1692                 if (isbss) {
1693                         wmep->wmep_logcwmax = ireq->i_val;
1694                         if ((wme->wme_flags & WME_F_AGGRMODE) == 0)
1695                                 chanp->wmep_logcwmax = ireq->i_val;
1696                 } else {
1697                         wmep->wmep_logcwmax = chanp->wmep_logcwmax =
1698                                 ireq->i_val;
1699                 }
1700                 break;
1701         case IEEE80211_IOC_WME_AIFS:            /* WME: AIFS */
1702                 if (isbss) {
1703                         wmep->wmep_aifsn = ireq->i_val;
1704                         if ((wme->wme_flags & WME_F_AGGRMODE) == 0)
1705                                 chanp->wmep_aifsn = ireq->i_val;
1706                 } else {
1707                         wmep->wmep_aifsn = chanp->wmep_aifsn = ireq->i_val;
1708                 }
1709                 break;
1710         case IEEE80211_IOC_WME_TXOPLIMIT:       /* WME: txops limit */
1711                 if (isbss) {
1712                         wmep->wmep_txopLimit = ireq->i_val;
1713                         if ((wme->wme_flags & WME_F_AGGRMODE) == 0)
1714                                 chanp->wmep_txopLimit = ireq->i_val;
1715                 } else {
1716                         wmep->wmep_txopLimit = chanp->wmep_txopLimit =
1717                                 ireq->i_val;
1718                 }
1719                 break;
1720         case IEEE80211_IOC_WME_ACM:             /* WME: ACM (bss only) */
1721                 wmep->wmep_acm = ireq->i_val;
1722                 if ((wme->wme_flags & WME_F_AGGRMODE) == 0)
1723                         chanp->wmep_acm = ireq->i_val;
1724                 break;
1725         case IEEE80211_IOC_WME_ACKPOLICY:       /* WME: ACK policy (!bss only)*/
1726                 wmep->wmep_noackPolicy = chanp->wmep_noackPolicy =
1727                         (ireq->i_val) == 0;
1728                 break;
1729         }
1730         ieee80211_wme_updateparams(vap);
1731         return 0;
1732 }
1733
1734 static int
1735 find11gchannel(struct ieee80211com *ic, int start, int freq)
1736 {
1737         const struct ieee80211_channel *c;
1738         int i;
1739
1740         for (i = start+1; i < ic->ic_nchans; i++) {
1741                 c = &ic->ic_channels[i];
1742                 if (c->ic_freq == freq && IEEE80211_IS_CHAN_ANYG(c))
1743                         return 1;
1744         }
1745         /* NB: should not be needed but in case things are mis-sorted */
1746         for (i = 0; i < start; i++) {
1747                 c = &ic->ic_channels[i];
1748                 if (c->ic_freq == freq && IEEE80211_IS_CHAN_ANYG(c))
1749                         return 1;
1750         }
1751         return 0;
1752 }
1753
1754 static struct ieee80211_channel *
1755 findchannel(struct ieee80211com *ic, int ieee, int mode)
1756 {
1757         static const u_int chanflags[IEEE80211_MODE_MAX] = {
1758             [IEEE80211_MODE_AUTO]       = 0,
1759             [IEEE80211_MODE_11A]        = IEEE80211_CHAN_A,
1760             [IEEE80211_MODE_11B]        = IEEE80211_CHAN_B,
1761             [IEEE80211_MODE_11G]        = IEEE80211_CHAN_G,
1762             [IEEE80211_MODE_FH]         = IEEE80211_CHAN_FHSS,
1763             [IEEE80211_MODE_TURBO_A]    = IEEE80211_CHAN_108A,
1764             [IEEE80211_MODE_TURBO_G]    = IEEE80211_CHAN_108G,
1765             [IEEE80211_MODE_STURBO_A]   = IEEE80211_CHAN_STURBO,
1766             [IEEE80211_MODE_HALF]       = IEEE80211_CHAN_HALF,
1767             [IEEE80211_MODE_QUARTER]    = IEEE80211_CHAN_QUARTER,
1768             /* NB: handled specially below */
1769             [IEEE80211_MODE_11NA]       = IEEE80211_CHAN_A,
1770             [IEEE80211_MODE_11NG]       = IEEE80211_CHAN_G,
1771         };
1772         u_int modeflags;
1773         int i;
1774
1775         modeflags = chanflags[mode];
1776         for (i = 0; i < ic->ic_nchans; i++) {
1777                 struct ieee80211_channel *c = &ic->ic_channels[i];
1778
1779                 if (c->ic_ieee != ieee)
1780                         continue;
1781                 if (mode == IEEE80211_MODE_AUTO) {
1782                         /* ignore turbo channels for autoselect */
1783                         if (IEEE80211_IS_CHAN_TURBO(c))
1784                                 continue;
1785                         /*
1786                          * XXX special-case 11b/g channels so we
1787                          *     always select the g channel if both
1788                          *     are present.
1789                          * XXX prefer HT to non-HT?
1790                          */
1791                         if (!IEEE80211_IS_CHAN_B(c) ||
1792                             !find11gchannel(ic, i, c->ic_freq))
1793                                 return c;
1794                 } else {
1795                         /* must check HT specially */
1796                         if ((mode == IEEE80211_MODE_11NA ||
1797                             mode == IEEE80211_MODE_11NG) &&
1798                             !IEEE80211_IS_CHAN_HT(c))
1799                                 continue;
1800                         if ((c->ic_flags & modeflags) == modeflags)
1801                                 return c;
1802                 }
1803         }
1804         return NULL;
1805 }
1806
1807 /*
1808  * Check the specified against any desired mode (aka netband).
1809  * This is only used (presently) when operating in hostap mode
1810  * to enforce consistency.
1811  */
1812 static int
1813 check_mode_consistency(const struct ieee80211_channel *c, int mode)
1814 {
1815         KASSERT(c != IEEE80211_CHAN_ANYC, ("oops, no channel"));
1816
1817         switch (mode) {
1818         case IEEE80211_MODE_11B:
1819                 return (IEEE80211_IS_CHAN_B(c));
1820         case IEEE80211_MODE_11G:
1821                 return (IEEE80211_IS_CHAN_ANYG(c) && !IEEE80211_IS_CHAN_HT(c));
1822         case IEEE80211_MODE_11A:
1823                 return (IEEE80211_IS_CHAN_A(c) && !IEEE80211_IS_CHAN_HT(c));
1824         case IEEE80211_MODE_STURBO_A:
1825                 return (IEEE80211_IS_CHAN_STURBO(c));
1826         case IEEE80211_MODE_11NA:
1827                 return (IEEE80211_IS_CHAN_HTA(c));
1828         case IEEE80211_MODE_11NG:
1829                 return (IEEE80211_IS_CHAN_HTG(c));
1830         }
1831         return 1;
1832
1833 }
1834
1835 /*
1836  * Common code to set the current channel.  If the device
1837  * is up and running this may result in an immediate channel
1838  * change or a kick of the state machine.
1839  */
1840 static int
1841 setcurchan(struct ieee80211vap *vap, struct ieee80211_channel *c)
1842 {
1843         struct ieee80211com *ic = vap->iv_ic;
1844         int error;
1845
1846         if (c != IEEE80211_CHAN_ANYC) {
1847                 if (IEEE80211_IS_CHAN_RADAR(c))
1848                         return EBUSY;   /* XXX better code? */
1849                 if (vap->iv_opmode == IEEE80211_M_HOSTAP) {
1850                         if (IEEE80211_IS_CHAN_NOHOSTAP(c))
1851                                 return EINVAL;
1852                         if (!check_mode_consistency(c, vap->iv_des_mode))
1853                                 return EINVAL;
1854                 } else if (vap->iv_opmode == IEEE80211_M_IBSS) {
1855                         if (IEEE80211_IS_CHAN_NOADHOC(c))
1856                                 return EINVAL;
1857                 }
1858                 if (vap->iv_state == IEEE80211_S_RUN &&
1859                     vap->iv_bss->ni_chan == c)
1860                         return 0;       /* NB: nothing to do */
1861         }
1862         vap->iv_des_chan = c;
1863
1864         error = 0;
1865         if (vap->iv_opmode == IEEE80211_M_MONITOR &&
1866             vap->iv_des_chan != IEEE80211_CHAN_ANYC) {
1867                 /*
1868                  * Monitor mode can switch directly.
1869                  */
1870                 if (IFNET_IS_UP_RUNNING(vap->iv_ifp)) {
1871                         /* XXX need state machine for other vap's to follow */
1872                         ieee80211_setcurchan(ic, vap->iv_des_chan);
1873                         vap->iv_bss->ni_chan = ic->ic_curchan;
1874                 } else
1875                         ic->ic_curchan = vap->iv_des_chan;
1876                         ic->ic_rt = ieee80211_get_ratetable(ic->ic_curchan);
1877         } else {
1878                 /*
1879                  * Need to go through the state machine in case we
1880                  * need to reassociate or the like.  The state machine
1881                  * will pickup the desired channel and avoid scanning.
1882                  */
1883                 if (IS_UP_AUTO(vap))
1884                         ieee80211_new_state(vap, IEEE80211_S_SCAN, 0);
1885                 else if (vap->iv_des_chan != IEEE80211_CHAN_ANYC) {
1886                         /*
1887                          * When not up+running and a real channel has
1888                          * been specified fix the current channel so
1889                          * there is immediate feedback; e.g. via ifconfig.
1890                          */
1891                         ic->ic_curchan = vap->iv_des_chan;
1892                         ic->ic_rt = ieee80211_get_ratetable(ic->ic_curchan);
1893                 }
1894         }
1895         return error;
1896 }
1897
1898 /*
1899  * Old api for setting the current channel; this is
1900  * deprecated because channel numbers are ambiguous.
1901  */
1902 static __noinline int
1903 ieee80211_ioctl_setchannel(struct ieee80211vap *vap,
1904         const struct ieee80211req *ireq)
1905 {
1906         struct ieee80211com *ic = vap->iv_ic;
1907         struct ieee80211_channel *c;
1908
1909         /* XXX 0xffff overflows 16-bit signed */
1910         if (ireq->i_val == 0 ||
1911             ireq->i_val == (int16_t) IEEE80211_CHAN_ANY) {
1912                 c = IEEE80211_CHAN_ANYC;
1913         } else {
1914                 struct ieee80211_channel *c2;
1915
1916                 c = findchannel(ic, ireq->i_val, vap->iv_des_mode);
1917                 if (c == NULL) {
1918                         c = findchannel(ic, ireq->i_val,
1919                                 IEEE80211_MODE_AUTO);
1920                         if (c == NULL)
1921                                 return EINVAL;
1922                 }
1923                 /*
1924                  * Fine tune channel selection based on desired mode:
1925                  *   if 11b is requested, find the 11b version of any
1926                  *      11g channel returned,
1927                  *   if static turbo, find the turbo version of any
1928                  *      11a channel return,
1929                  *   if 11na is requested, find the ht version of any
1930                  *      11a channel returned,
1931                  *   if 11ng is requested, find the ht version of any
1932                  *      11g channel returned,
1933                  *   otherwise we should be ok with what we've got.
1934                  */
1935                 switch (vap->iv_des_mode) {
1936                 case IEEE80211_MODE_11B:
1937                         if (IEEE80211_IS_CHAN_ANYG(c)) {
1938                                 c2 = findchannel(ic, ireq->i_val,
1939                                         IEEE80211_MODE_11B);
1940                                 /* NB: should not happen, =>'s 11g w/o 11b */
1941                                 if (c2 != NULL)
1942                                         c = c2;
1943                         }
1944                         break;
1945                 case IEEE80211_MODE_TURBO_A:
1946                         if (IEEE80211_IS_CHAN_A(c)) {
1947                                 c2 = findchannel(ic, ireq->i_val,
1948                                         IEEE80211_MODE_TURBO_A);
1949                                 if (c2 != NULL)
1950                                         c = c2;
1951                         }
1952                         break;
1953                 case IEEE80211_MODE_11NA:
1954                         if (IEEE80211_IS_CHAN_A(c)) {
1955                                 c2 = findchannel(ic, ireq->i_val,
1956                                         IEEE80211_MODE_11NA);
1957                                 if (c2 != NULL)
1958                                         c = c2;
1959                         }
1960                         break;
1961                 case IEEE80211_MODE_11NG:
1962                         if (IEEE80211_IS_CHAN_ANYG(c)) {
1963                                 c2 = findchannel(ic, ireq->i_val,
1964                                         IEEE80211_MODE_11NG);
1965                                 if (c2 != NULL)
1966                                         c = c2;
1967                         }
1968                         break;
1969                 default:                /* NB: no static turboG */
1970                         break;
1971                 }
1972         }
1973         return setcurchan(vap, c);
1974 }
1975
1976 /*
1977  * New/current api for setting the current channel; a complete
1978  * channel description is provide so there is no ambiguity in
1979  * identifying the channel.
1980  */
1981 static __noinline int
1982 ieee80211_ioctl_setcurchan(struct ieee80211vap *vap,
1983         const struct ieee80211req *ireq)
1984 {
1985         struct ieee80211com *ic = vap->iv_ic;
1986         struct ieee80211_channel chan, *c;
1987         int error;
1988
1989         if (ireq->i_len != sizeof(chan))
1990                 return EINVAL;
1991         error = copyin(ireq->i_data, &chan, sizeof(chan));
1992         if (error != 0)
1993                 return error;
1994         /* XXX 0xffff overflows 16-bit signed */
1995         if (chan.ic_freq == 0 || chan.ic_freq == IEEE80211_CHAN_ANY) {
1996                 c = IEEE80211_CHAN_ANYC;
1997         } else {
1998                 c = ieee80211_find_channel(ic, chan.ic_freq, chan.ic_flags);
1999                 if (c == NULL)
2000                         return EINVAL;
2001         }
2002         return setcurchan(vap, c);
2003 }
2004
2005 static __noinline int
2006 ieee80211_ioctl_setregdomain(struct ieee80211vap *vap,
2007         const struct ieee80211req *ireq)
2008 {
2009         struct ieee80211_regdomain_req *reg;
2010         int nchans, error;
2011
2012         nchans = 1 + ((ireq->i_len - sizeof(struct ieee80211_regdomain_req)) /
2013             sizeof(struct ieee80211_channel));
2014         if (!(1 <= nchans && nchans <= IEEE80211_CHAN_MAX)) {
2015                 IEEE80211_DPRINTF(vap, IEEE80211_MSG_IOCTL,
2016                     "%s: bad # chans, i_len %d nchans %d\n", __func__,
2017                     ireq->i_len, nchans);
2018                 return EINVAL;
2019         }
2020         reg = (struct ieee80211_regdomain_req *)
2021             malloc(IEEE80211_REGDOMAIN_SIZE(nchans), M_TEMP, M_NOWAIT);
2022         if (reg == NULL) {
2023                 IEEE80211_DPRINTF(vap, IEEE80211_MSG_IOCTL,
2024                     "%s: no memory, nchans %d\n", __func__, nchans);
2025                 return ENOMEM;
2026         }
2027         error = copyin(ireq->i_data, reg, IEEE80211_REGDOMAIN_SIZE(nchans));
2028         if (error == 0) {
2029                 /* NB: validate inline channel count against storage size */
2030                 if (reg->chaninfo.ic_nchans != nchans) {
2031                         IEEE80211_DPRINTF(vap, IEEE80211_MSG_IOCTL,
2032                             "%s: chan cnt mismatch, %d != %d\n", __func__,
2033                                 reg->chaninfo.ic_nchans, nchans);
2034                         error = EINVAL;
2035                 } else
2036                         error = ieee80211_setregdomain(vap, reg);
2037         }
2038         free(reg, M_TEMP);
2039
2040         return (error == 0 ? ENETRESET : error);
2041 }
2042
2043 static int
2044 ieee80211_ioctl_setroam(struct ieee80211vap *vap,
2045         const struct ieee80211req *ireq)
2046 {
2047         if (ireq->i_len != sizeof(vap->iv_roamparms))
2048                 return EINVAL;
2049         /* XXX validate params */
2050         /* XXX? ENETRESET to push to device? */
2051         return copyin(ireq->i_data, vap->iv_roamparms,
2052             sizeof(vap->iv_roamparms));
2053 }
2054
2055 static int
2056 checkrate(const struct ieee80211_rateset *rs, int rate)
2057 {
2058         int i;
2059
2060         if (rate == IEEE80211_FIXED_RATE_NONE)
2061                 return 1;
2062         for (i = 0; i < rs->rs_nrates; i++)
2063                 if ((rs->rs_rates[i] & IEEE80211_RATE_VAL) == rate)
2064                         return 1;
2065         return 0;
2066 }
2067
2068 static int
2069 checkmcs(int mcs)
2070 {
2071         if (mcs == IEEE80211_FIXED_RATE_NONE)
2072                 return 1;
2073         if ((mcs & IEEE80211_RATE_MCS) == 0)    /* MCS always have 0x80 set */
2074                 return 0;
2075         return (mcs & 0x7f) <= 15;      /* XXX could search ht rate set */
2076 }
2077
2078 static __noinline int
2079 ieee80211_ioctl_settxparams(struct ieee80211vap *vap,
2080         const struct ieee80211req *ireq)
2081 {
2082         struct ieee80211com *ic = vap->iv_ic;
2083         struct ieee80211_txparams_req parms;    /* XXX stack use? */
2084         struct ieee80211_txparam *src, *dst;
2085         const struct ieee80211_rateset *rs;
2086         int error, mode, changed, is11n, nmodes;
2087
2088         /* NB: accept short requests for backwards compat */
2089         if (ireq->i_len > sizeof(parms))
2090                 return EINVAL;
2091         error = copyin(ireq->i_data, &parms, ireq->i_len);
2092         if (error != 0)
2093                 return error;
2094         nmodes = ireq->i_len / sizeof(struct ieee80211_txparam);
2095         changed = 0;
2096         /* validate parameters and check if anything changed */
2097         for (mode = IEEE80211_MODE_11A; mode < nmodes; mode++) {
2098                 if (isclr(ic->ic_modecaps, mode))
2099                         continue;
2100                 src = &parms.params[mode];
2101                 dst = &vap->iv_txparms[mode];
2102                 rs = &ic->ic_sup_rates[mode];   /* NB: 11n maps to legacy */
2103                 is11n = (mode == IEEE80211_MODE_11NA ||
2104                          mode == IEEE80211_MODE_11NG);
2105                 if (src->ucastrate != dst->ucastrate) {
2106                         if (!checkrate(rs, src->ucastrate) &&
2107                             (!is11n || !checkmcs(src->ucastrate)))
2108                                 return EINVAL;
2109                         changed++;
2110                 }
2111                 if (src->mcastrate != dst->mcastrate) {
2112                         if (!checkrate(rs, src->mcastrate) &&
2113                             (!is11n || !checkmcs(src->mcastrate)))
2114                                 return EINVAL;
2115                         changed++;
2116                 }
2117                 if (src->mgmtrate != dst->mgmtrate) {
2118                         if (!checkrate(rs, src->mgmtrate) &&
2119                             (!is11n || !checkmcs(src->mgmtrate)))
2120                                 return EINVAL;
2121                         changed++;
2122                 }
2123                 if (src->maxretry != dst->maxretry)     /* NB: no bounds */
2124                         changed++;
2125         }
2126         if (changed) {
2127                 /*
2128                  * Copy new parameters in place and notify the
2129                  * driver so it can push state to the device.
2130                  */
2131                 for (mode = IEEE80211_MODE_11A; mode < nmodes; mode++) {
2132                         if (isset(ic->ic_modecaps, mode))
2133                                 vap->iv_txparms[mode] = parms.params[mode];
2134                 }
2135                 /* XXX could be more intelligent,
2136                    e.g. don't reset if setting not being used */
2137                 return ENETRESET;
2138         }
2139         return 0;
2140 }
2141
2142 /*
2143  * Application Information Element support.
2144  */
2145 static int
2146 setappie(struct ieee80211_appie **aie, const struct ieee80211req *ireq)
2147 {
2148         struct ieee80211_appie *app = *aie;
2149         struct ieee80211_appie *napp;
2150         int error;
2151
2152         if (ireq->i_len == 0) {         /* delete any existing ie */
2153                 if (app != NULL) {
2154                         *aie = NULL;    /* XXX racey */
2155                         free(app, M_80211_NODE_IE);
2156                 }
2157                 return 0;
2158         }
2159         if (!(2 <= ireq->i_len && ireq->i_len <= IEEE80211_MAX_APPIE))
2160                 return EINVAL;
2161         /*
2162          * Allocate a new appie structure and copy in the user data.
2163          * When done swap in the new structure.  Note that we do not
2164          * guard against users holding a ref to the old structure;
2165          * this must be handled outside this code.
2166          *
2167          * XXX bad bad bad
2168          */
2169         napp = (struct ieee80211_appie *) malloc(
2170             sizeof(struct ieee80211_appie) + ireq->i_len, M_80211_NODE_IE, M_NOWAIT);
2171         if (napp == NULL)
2172                 return ENOMEM;
2173         /* XXX holding ic lock */
2174         error = copyin(ireq->i_data, napp->ie_data, ireq->i_len);
2175         if (error) {
2176                 free(napp, M_80211_NODE_IE);
2177                 return error;
2178         }
2179         napp->ie_len = ireq->i_len;
2180         *aie = napp;
2181         if (app != NULL)
2182                 free(app, M_80211_NODE_IE);
2183         return 0;
2184 }
2185
2186 static void
2187 setwparsnie(struct ieee80211vap *vap, uint8_t *ie, int space)
2188 {
2189         /* validate data is present as best we can */
2190         if (space == 0 || 2+ie[1] > space)
2191                 return;
2192         if (ie[0] == IEEE80211_ELEMID_VENDOR)
2193                 vap->iv_wpa_ie = ie;
2194         else if (ie[0] == IEEE80211_ELEMID_RSN)
2195                 vap->iv_rsn_ie = ie;
2196 }
2197
2198 static __noinline int
2199 ieee80211_ioctl_setappie_locked(struct ieee80211vap *vap,
2200         const struct ieee80211req *ireq, int fc0)
2201 {
2202         int error;
2203
2204         IEEE80211_LOCK_ASSERT(vap->iv_ic);
2205
2206         switch (fc0 & IEEE80211_FC0_SUBTYPE_MASK) {
2207         case IEEE80211_FC0_SUBTYPE_BEACON:
2208                 if (vap->iv_opmode != IEEE80211_M_HOSTAP &&
2209                     vap->iv_opmode != IEEE80211_M_IBSS) {
2210                         error = EINVAL;
2211                         break;
2212                 }
2213                 error = setappie(&vap->iv_appie_beacon, ireq);
2214                 if (error == 0)
2215                         ieee80211_beacon_notify(vap, IEEE80211_BEACON_APPIE);
2216                 break;
2217         case IEEE80211_FC0_SUBTYPE_PROBE_RESP:
2218                 error = setappie(&vap->iv_appie_proberesp, ireq);
2219                 break;
2220         case IEEE80211_FC0_SUBTYPE_ASSOC_RESP:
2221                 if (vap->iv_opmode == IEEE80211_M_HOSTAP)
2222                         error = setappie(&vap->iv_appie_assocresp, ireq);
2223                 else
2224                         error = EINVAL;
2225                 break;
2226         case IEEE80211_FC0_SUBTYPE_PROBE_REQ:
2227                 error = setappie(&vap->iv_appie_probereq, ireq);
2228                 break;
2229         case IEEE80211_FC0_SUBTYPE_ASSOC_REQ:
2230                 if (vap->iv_opmode == IEEE80211_M_STA)
2231                         error = setappie(&vap->iv_appie_assocreq, ireq);
2232                 else
2233                         error = EINVAL;
2234                 break;
2235         case (IEEE80211_APPIE_WPA & IEEE80211_FC0_SUBTYPE_MASK):
2236                 error = setappie(&vap->iv_appie_wpa, ireq);
2237                 if (error == 0) {
2238                         /*
2239                          * Must split single blob of data into separate
2240                          * WPA and RSN ie's because they go in different
2241                          * locations in the mgt frames.
2242                          * XXX use IEEE80211_IOC_WPA2 so user code does split
2243                          */
2244                         vap->iv_wpa_ie = NULL;
2245                         vap->iv_rsn_ie = NULL;
2246                         if (vap->iv_appie_wpa != NULL) {
2247                                 struct ieee80211_appie *appie =
2248                                     vap->iv_appie_wpa;
2249                                 uint8_t *data = appie->ie_data;
2250
2251                                 /* XXX ie length validate is painful, cheat */
2252                                 setwparsnie(vap, data, appie->ie_len);
2253                                 setwparsnie(vap, data + 2 + data[1],
2254                                     appie->ie_len - (2 + data[1]));
2255                         }
2256                         if (vap->iv_opmode == IEEE80211_M_HOSTAP ||
2257                             vap->iv_opmode == IEEE80211_M_IBSS) {
2258                                 /*
2259                                  * Must rebuild beacon frame as the update
2260                                  * mechanism doesn't handle WPA/RSN ie's.
2261                                  * Could extend it but it doesn't normally
2262                                  * change; this is just to deal with hostapd
2263                                  * plumbing the ie after the interface is up.
2264                                  */
2265                                 error = ENETRESET;
2266                         }
2267                 }
2268                 break;
2269         default:
2270                 error = EINVAL;
2271                 break;
2272         }
2273         return error;
2274 }
2275
2276 static __noinline int
2277 ieee80211_ioctl_setappie(struct ieee80211vap *vap,
2278         const struct ieee80211req *ireq)
2279 {
2280         struct ieee80211com *ic = vap->iv_ic;
2281         int error;
2282         uint8_t fc0;
2283
2284         fc0 = ireq->i_val & 0xff;
2285         if ((fc0 & IEEE80211_FC0_TYPE_MASK) != IEEE80211_FC0_TYPE_MGT)
2286                 return EINVAL;
2287         /* NB: could check iv_opmode and reject but hardly worth the effort */
2288         IEEE80211_LOCK(ic);
2289         error = ieee80211_ioctl_setappie_locked(vap, ireq, fc0);
2290         IEEE80211_UNLOCK(ic);
2291         return error;
2292 }
2293
2294 static __noinline int
2295 ieee80211_ioctl_chanswitch(struct ieee80211vap *vap, struct ieee80211req *ireq)
2296 {
2297         struct ieee80211com *ic = vap->iv_ic;
2298         struct ieee80211_chanswitch_req csr;
2299         struct ieee80211_channel *c;
2300         int error;
2301
2302         if (ireq->i_len != sizeof(csr))
2303                 return EINVAL;
2304         error = copyin(ireq->i_data, &csr, sizeof(csr));
2305         if (error != 0)
2306                 return error;
2307         if ((vap->iv_flags & IEEE80211_F_DOTH) == 0)
2308                 return EINVAL;
2309         c = ieee80211_find_channel(ic,
2310             csr.csa_chan.ic_freq, csr.csa_chan.ic_flags);
2311         if (c == NULL)
2312                 return ENOENT;
2313         IEEE80211_LOCK(ic);
2314         if ((ic->ic_flags & IEEE80211_F_CSAPENDING) == 0)
2315                 ieee80211_csa_startswitch(ic, c, csr.csa_mode, csr.csa_count);
2316         else
2317                 error = EBUSY;
2318         IEEE80211_UNLOCK(ic);
2319         return error;
2320 }
2321
2322 static __noinline int
2323 ieee80211_ioctl_scanreq(struct ieee80211vap *vap, struct ieee80211req *ireq)
2324 {
2325 #define IEEE80211_IOC_SCAN_FLAGS \
2326         (IEEE80211_IOC_SCAN_NOPICK | IEEE80211_IOC_SCAN_ACTIVE | \
2327          IEEE80211_IOC_SCAN_PICK1ST | IEEE80211_IOC_SCAN_BGSCAN | \
2328          IEEE80211_IOC_SCAN_ONCE | IEEE80211_IOC_SCAN_NOBCAST | \
2329          IEEE80211_IOC_SCAN_NOJOIN | IEEE80211_IOC_SCAN_FLUSH | \
2330          IEEE80211_IOC_SCAN_CHECK)
2331         struct ieee80211com *ic = vap->iv_ic;
2332         struct ieee80211_scan_req sr;           /* XXX off stack? */
2333         int error, i;
2334
2335         /* NB: parent must be running */
2336         if ((ic->ic_ifp->if_drv_flags & IFF_DRV_RUNNING) == 0)
2337                 return ENXIO;
2338
2339         if (ireq->i_len != sizeof(sr))
2340                 return EINVAL;
2341         error = copyin(ireq->i_data, &sr, sizeof(sr));
2342         if (error != 0)
2343                 return error;
2344         /* convert duration */
2345         if (sr.sr_duration == IEEE80211_IOC_SCAN_FOREVER)
2346                 sr.sr_duration = IEEE80211_SCAN_FOREVER;
2347         else {
2348                 if (sr.sr_duration < IEEE80211_IOC_SCAN_DURATION_MIN ||
2349                     sr.sr_duration > IEEE80211_IOC_SCAN_DURATION_MAX)
2350                         return EINVAL;
2351                 sr.sr_duration = msecs_to_ticks(sr.sr_duration);
2352                 if (sr.sr_duration < 1)
2353                         sr.sr_duration = 1;
2354         }
2355         /* convert min/max channel dwell */
2356         if (sr.sr_mindwell != 0) {
2357                 sr.sr_mindwell = msecs_to_ticks(sr.sr_mindwell);
2358                 if (sr.sr_mindwell < 1)
2359                         sr.sr_mindwell = 1;
2360         }
2361         if (sr.sr_maxdwell != 0) {
2362                 sr.sr_maxdwell = msecs_to_ticks(sr.sr_maxdwell);
2363                 if (sr.sr_maxdwell < 1)
2364                         sr.sr_maxdwell = 1;
2365         }
2366         /* NB: silently reduce ssid count to what is supported */
2367         if (sr.sr_nssid > IEEE80211_SCAN_MAX_SSID)
2368                 sr.sr_nssid = IEEE80211_SCAN_MAX_SSID;
2369         for (i = 0; i < sr.sr_nssid; i++)
2370                 if (sr.sr_ssid[i].len > IEEE80211_NWID_LEN)
2371                         return EINVAL;
2372         /* cleanse flags just in case, could reject if invalid flags */
2373         sr.sr_flags &= IEEE80211_IOC_SCAN_FLAGS;
2374         /*
2375          * Add an implicit NOPICK if the vap is not marked UP.  This
2376          * allows applications to scan without joining a bss (or picking
2377          * a channel and setting up a bss) and without forcing manual
2378          * roaming mode--you just need to mark the parent device UP.
2379          */
2380         if ((vap->iv_ifp->if_flags & IFF_UP) == 0)
2381                 sr.sr_flags |= IEEE80211_IOC_SCAN_NOPICK;
2382
2383         IEEE80211_DPRINTF(vap, IEEE80211_MSG_SCAN,
2384             "%s: flags 0x%x%s duration 0x%x mindwell %u maxdwell %u nssid %d\n",
2385             __func__, sr.sr_flags,
2386             (vap->iv_ifp->if_flags & IFF_UP) == 0 ? " (!IFF_UP)" : "",
2387             sr.sr_duration, sr.sr_mindwell, sr.sr_maxdwell, sr.sr_nssid);
2388         /*
2389          * If we are in INIT state then the driver has never had a chance
2390          * to setup hardware state to do a scan; we must use the state
2391          * machine to get us up to the SCAN state but once we reach SCAN
2392          * state we then want to use the supplied params.  Stash the
2393          * parameters in the vap and mark IEEE80211_FEXT_SCANREQ; the
2394          * state machines will recognize this and use the stashed params
2395          * to issue the scan request.
2396          *
2397          * Otherwise just invoke the scan machinery directly.
2398          */
2399         IEEE80211_LOCK(ic);
2400         if (vap->iv_state == IEEE80211_S_INIT) {
2401                 /* NB: clobbers previous settings */
2402                 vap->iv_scanreq_flags = sr.sr_flags;
2403                 vap->iv_scanreq_duration = sr.sr_duration;
2404                 vap->iv_scanreq_nssid = sr.sr_nssid;
2405                 for (i = 0; i < sr.sr_nssid; i++) {
2406                         vap->iv_scanreq_ssid[i].len = sr.sr_ssid[i].len;
2407                         memcpy(vap->iv_scanreq_ssid[i].ssid, sr.sr_ssid[i].ssid,
2408                             sr.sr_ssid[i].len);
2409                 }
2410                 vap->iv_flags_ext |= IEEE80211_FEXT_SCANREQ;
2411                 IEEE80211_UNLOCK(ic);
2412                 ieee80211_new_state(vap, IEEE80211_S_SCAN, 0);
2413         } else {
2414                 vap->iv_flags_ext &= ~IEEE80211_FEXT_SCANREQ;
2415                 IEEE80211_UNLOCK(ic);
2416                 /* XXX neeed error return codes */
2417                 if (sr.sr_flags & IEEE80211_IOC_SCAN_CHECK) {
2418                         (void) ieee80211_check_scan(vap, sr.sr_flags,
2419                             sr.sr_duration, sr.sr_mindwell, sr.sr_maxdwell,
2420                             sr.sr_nssid,
2421                             /* NB: cheat, we assume structures are compatible */
2422                             (const struct ieee80211_scan_ssid *) &sr.sr_ssid[0]);
2423                 } else {
2424                         (void) ieee80211_start_scan(vap, sr.sr_flags,
2425                             sr.sr_duration, sr.sr_mindwell, sr.sr_maxdwell,
2426                             sr.sr_nssid,
2427                             /* NB: cheat, we assume structures are compatible */
2428                             (const struct ieee80211_scan_ssid *) &sr.sr_ssid[0]);
2429                 }
2430         }
2431         return error;
2432 #undef IEEE80211_IOC_SCAN_FLAGS
2433 }
2434
2435 static __noinline int
2436 ieee80211_ioctl_setstavlan(struct ieee80211vap *vap, struct ieee80211req *ireq)
2437 {
2438         struct ieee80211_node *ni;
2439         struct ieee80211req_sta_vlan vlan;
2440         int error;
2441
2442         if (ireq->i_len != sizeof(vlan))
2443                 return EINVAL;
2444         error = copyin(ireq->i_data, &vlan, sizeof(vlan));
2445         if (error != 0)
2446                 return error;
2447         if (!IEEE80211_ADDR_EQ(vlan.sv_macaddr, zerobssid)) {
2448                 ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap,
2449                     vlan.sv_macaddr);
2450                 if (ni == NULL)
2451                         return ENOENT;
2452         } else
2453                 ni = ieee80211_ref_node(vap->iv_bss);
2454         ni->ni_vlan = vlan.sv_vlan;
2455         ieee80211_free_node(ni);
2456         return error;
2457 }
2458
2459 static int
2460 isvap11g(const struct ieee80211vap *vap)
2461 {
2462         const struct ieee80211_node *bss = vap->iv_bss;
2463         return bss->ni_chan != IEEE80211_CHAN_ANYC &&
2464             IEEE80211_IS_CHAN_ANYG(bss->ni_chan);
2465 }
2466
2467 static int
2468 isvapht(const struct ieee80211vap *vap)
2469 {
2470         const struct ieee80211_node *bss = vap->iv_bss;
2471         return bss->ni_chan != IEEE80211_CHAN_ANYC &&
2472             IEEE80211_IS_CHAN_HT(bss->ni_chan);
2473 }
2474
2475 /*
2476  * Dummy ioctl set handler so the linker set is defined.
2477  */
2478 static int
2479 dummy_ioctl_set(struct ieee80211vap *vap, struct ieee80211req *ireq)
2480 {
2481         return ENOSYS;
2482 }
2483 IEEE80211_IOCTL_SET(dummy, dummy_ioctl_set);
2484
2485 static int
2486 ieee80211_ioctl_setdefault(struct ieee80211vap *vap, struct ieee80211req *ireq)
2487 {
2488         ieee80211_ioctl_setfunc * const *set;
2489         int error;
2490
2491         SET_FOREACH(set, ieee80211_ioctl_setset) {
2492                 error = (*set)(vap, ireq);
2493                 if (error != ENOSYS)
2494                         return error;
2495         }
2496         return EINVAL;
2497 }
2498
2499 static __noinline int
2500 ieee80211_ioctl_set80211(struct ieee80211vap *vap, u_long cmd, struct ieee80211req *ireq)
2501 {
2502         struct ieee80211com *ic = vap->iv_ic;
2503         int error;
2504         const struct ieee80211_authenticator *auth;
2505         uint8_t tmpkey[IEEE80211_KEYBUF_SIZE];
2506         char tmpssid[IEEE80211_NWID_LEN];
2507         uint8_t tmpbssid[IEEE80211_ADDR_LEN];
2508         struct ieee80211_key *k;
2509         u_int kid;
2510         uint32_t flags;
2511
2512         error = 0;
2513         switch (ireq->i_type) {
2514         case IEEE80211_IOC_SSID:
2515                 if (ireq->i_val != 0 ||
2516                     ireq->i_len > IEEE80211_NWID_LEN)
2517                         return EINVAL;
2518                 error = copyin(ireq->i_data, tmpssid, ireq->i_len);
2519                 if (error)
2520                         break;
2521                 memset(vap->iv_des_ssid[0].ssid, 0, IEEE80211_NWID_LEN);
2522                 vap->iv_des_ssid[0].len = ireq->i_len;
2523                 memcpy(vap->iv_des_ssid[0].ssid, tmpssid, ireq->i_len);
2524                 vap->iv_des_nssid = (ireq->i_len > 0);
2525                 error = ENETRESET;
2526                 break;
2527         case IEEE80211_IOC_WEP:
2528                 switch (ireq->i_val) {
2529                 case IEEE80211_WEP_OFF:
2530                         vap->iv_flags &= ~IEEE80211_F_PRIVACY;
2531                         vap->iv_flags &= ~IEEE80211_F_DROPUNENC;
2532                         break;
2533                 case IEEE80211_WEP_ON:
2534                         vap->iv_flags |= IEEE80211_F_PRIVACY;
2535                         vap->iv_flags |= IEEE80211_F_DROPUNENC;
2536                         break;
2537                 case IEEE80211_WEP_MIXED:
2538                         vap->iv_flags |= IEEE80211_F_PRIVACY;
2539                         vap->iv_flags &= ~IEEE80211_F_DROPUNENC;
2540                         break;
2541                 }
2542                 error = ENETRESET;
2543                 break;
2544         case IEEE80211_IOC_WEPKEY:
2545                 kid = (u_int) ireq->i_val;
2546                 if (kid >= IEEE80211_WEP_NKID)
2547                         return EINVAL;
2548                 k = &vap->iv_nw_keys[kid];
2549                 if (ireq->i_len == 0) {
2550                         /* zero-len =>'s delete any existing key */
2551                         (void) ieee80211_crypto_delkey(vap, k);
2552                         break;
2553                 }
2554                 if (ireq->i_len > sizeof(tmpkey))
2555                         return EINVAL;
2556                 memset(tmpkey, 0, sizeof(tmpkey));
2557                 error = copyin(ireq->i_data, tmpkey, ireq->i_len);
2558                 if (error)
2559                         break;
2560                 ieee80211_key_update_begin(vap);
2561                 k->wk_keyix = kid;      /* NB: force fixed key id */
2562                 if (ieee80211_crypto_newkey(vap, IEEE80211_CIPHER_WEP,
2563                     IEEE80211_KEY_XMIT | IEEE80211_KEY_RECV, k)) {
2564                         k->wk_keylen = ireq->i_len;
2565                         memcpy(k->wk_key, tmpkey, sizeof(tmpkey));
2566                         IEEE80211_ADDR_COPY(k->wk_macaddr, vap->iv_myaddr);
2567                         if  (!ieee80211_crypto_setkey(vap, k))
2568                                 error = EINVAL;
2569                 } else
2570                         error = EINVAL;
2571                 ieee80211_key_update_end(vap);
2572                 break;
2573         case IEEE80211_IOC_WEPTXKEY:
2574                 kid = (u_int) ireq->i_val;
2575                 if (kid >= IEEE80211_WEP_NKID &&
2576                     (uint16_t) kid != IEEE80211_KEYIX_NONE)
2577                         return EINVAL;
2578                 vap->iv_def_txkey = kid;
2579                 break;
2580         case IEEE80211_IOC_AUTHMODE:
2581                 switch (ireq->i_val) {
2582                 case IEEE80211_AUTH_WPA:
2583                 case IEEE80211_AUTH_8021X:      /* 802.1x */
2584                 case IEEE80211_AUTH_OPEN:       /* open */
2585                 case IEEE80211_AUTH_SHARED:     /* shared-key */
2586                 case IEEE80211_AUTH_AUTO:       /* auto */
2587                         auth = ieee80211_authenticator_get(ireq->i_val);
2588                         if (auth == NULL)
2589                                 return EINVAL;
2590                         break;
2591                 default:
2592                         return EINVAL;
2593                 }
2594                 switch (ireq->i_val) {
2595                 case IEEE80211_AUTH_WPA:        /* WPA w/ 802.1x */
2596                         vap->iv_flags |= IEEE80211_F_PRIVACY;
2597                         ireq->i_val = IEEE80211_AUTH_8021X;
2598                         break;
2599                 case IEEE80211_AUTH_OPEN:       /* open */
2600                         vap->iv_flags &= ~(IEEE80211_F_WPA|IEEE80211_F_PRIVACY);
2601                         break;
2602                 case IEEE80211_AUTH_SHARED:     /* shared-key */
2603                 case IEEE80211_AUTH_8021X:      /* 802.1x */
2604                         vap->iv_flags &= ~IEEE80211_F_WPA;
2605                         /* both require a key so mark the PRIVACY capability */
2606                         vap->iv_flags |= IEEE80211_F_PRIVACY;
2607                         break;
2608                 case IEEE80211_AUTH_AUTO:       /* auto */
2609                         vap->iv_flags &= ~IEEE80211_F_WPA;
2610                         /* XXX PRIVACY handling? */
2611                         /* XXX what's the right way to do this? */
2612                         break;
2613                 }
2614                 /* NB: authenticator attach/detach happens on state change */
2615                 vap->iv_bss->ni_authmode = ireq->i_val;
2616                 /* XXX mixed/mode/usage? */
2617                 vap->iv_auth = auth;
2618                 error = ENETRESET;
2619                 break;
2620         case IEEE80211_IOC_CHANNEL:
2621                 error = ieee80211_ioctl_setchannel(vap, ireq);
2622                 break;
2623         case IEEE80211_IOC_POWERSAVE:
2624                 switch (ireq->i_val) {
2625                 case IEEE80211_POWERSAVE_OFF:
2626                         if (vap->iv_flags & IEEE80211_F_PMGTON) {
2627                                 ieee80211_syncflag(vap, -IEEE80211_F_PMGTON);
2628                                 error = ERESTART;
2629                         }
2630                         break;
2631                 case IEEE80211_POWERSAVE_ON:
2632                         if ((vap->iv_caps & IEEE80211_C_PMGT) == 0)
2633                                 error = EOPNOTSUPP;
2634                         else if ((vap->iv_flags & IEEE80211_F_PMGTON) == 0) {
2635                                 ieee80211_syncflag(vap, IEEE80211_F_PMGTON);
2636                                 error = ERESTART;
2637                         }
2638                         break;
2639                 default:
2640                         error = EINVAL;
2641                         break;
2642                 }
2643                 break;
2644         case IEEE80211_IOC_POWERSAVESLEEP:
2645                 if (ireq->i_val < 0)
2646                         return EINVAL;
2647                 ic->ic_lintval = ireq->i_val;
2648                 error = ERESTART;
2649                 break;
2650         case IEEE80211_IOC_RTSTHRESHOLD:
2651                 if (!(IEEE80211_RTS_MIN <= ireq->i_val &&
2652                       ireq->i_val <= IEEE80211_RTS_MAX))
2653                         return EINVAL;
2654                 vap->iv_rtsthreshold = ireq->i_val;
2655                 error = ERESTART;
2656                 break;
2657         case IEEE80211_IOC_PROTMODE:
2658                 if (ireq->i_val > IEEE80211_PROT_RTSCTS)
2659                         return EINVAL;
2660                 ic->ic_protmode = ireq->i_val;
2661                 /* NB: if not operating in 11g this can wait */
2662                 if (ic->ic_bsschan != IEEE80211_CHAN_ANYC &&
2663                     IEEE80211_IS_CHAN_ANYG(ic->ic_bsschan))
2664                         error = ERESTART;
2665                 break;
2666         case IEEE80211_IOC_TXPOWER:
2667                 if ((ic->ic_caps & IEEE80211_C_TXPMGT) == 0)
2668                         return EOPNOTSUPP;
2669                 if (!(IEEE80211_TXPOWER_MIN <= ireq->i_val &&
2670                       ireq->i_val <= IEEE80211_TXPOWER_MAX))
2671                         return EINVAL;
2672                 ic->ic_txpowlimit = ireq->i_val;
2673                 error = ERESTART;
2674                 break;
2675         case IEEE80211_IOC_ROAMING:
2676                 if (!(IEEE80211_ROAMING_DEVICE <= ireq->i_val &&
2677                     ireq->i_val <= IEEE80211_ROAMING_MANUAL))
2678                         return EINVAL;
2679                 vap->iv_roaming = ireq->i_val;
2680                 /* XXXX reset? */
2681                 break;
2682         case IEEE80211_IOC_PRIVACY:
2683                 if (ireq->i_val) {
2684                         /* XXX check for key state? */
2685                         vap->iv_flags |= IEEE80211_F_PRIVACY;
2686                 } else
2687                         vap->iv_flags &= ~IEEE80211_F_PRIVACY;
2688                 /* XXX ERESTART? */
2689                 break;
2690         case IEEE80211_IOC_DROPUNENCRYPTED:
2691                 if (ireq->i_val)
2692                         vap->iv_flags |= IEEE80211_F_DROPUNENC;
2693                 else
2694                         vap->iv_flags &= ~IEEE80211_F_DROPUNENC;
2695                 /* XXX ERESTART? */
2696                 break;
2697         case IEEE80211_IOC_WPAKEY:
2698                 error = ieee80211_ioctl_setkey(vap, ireq);
2699                 break;
2700         case IEEE80211_IOC_DELKEY:
2701                 error = ieee80211_ioctl_delkey(vap, ireq);
2702                 break;
2703         case IEEE80211_IOC_MLME:
2704                 error = ieee80211_ioctl_setmlme(vap, ireq);
2705                 break;
2706         case IEEE80211_IOC_COUNTERMEASURES:
2707                 if (ireq->i_val) {
2708                         if ((vap->iv_flags & IEEE80211_F_WPA) == 0)
2709                                 return EOPNOTSUPP;
2710                         vap->iv_flags |= IEEE80211_F_COUNTERM;
2711                 } else
2712                         vap->iv_flags &= ~IEEE80211_F_COUNTERM;
2713                 /* XXX ERESTART? */
2714                 break;
2715         case IEEE80211_IOC_WPA:
2716                 if (ireq->i_val > 3)
2717                         return EINVAL;
2718                 /* XXX verify ciphers available */
2719                 flags = vap->iv_flags & ~IEEE80211_F_WPA;
2720                 switch (ireq->i_val) {
2721                 case 1:
2722                         if (!(vap->iv_caps & IEEE80211_C_WPA1))
2723                                 return EOPNOTSUPP;
2724                         flags |= IEEE80211_F_WPA1;
2725                         break;
2726                 case 2:
2727                         if (!(vap->iv_caps & IEEE80211_C_WPA2))
2728                                 return EOPNOTSUPP;
2729                         flags |= IEEE80211_F_WPA2;
2730                         break;
2731                 case 3:
2732                         if ((vap->iv_caps & IEEE80211_C_WPA) != IEEE80211_C_WPA)
2733                                 return EOPNOTSUPP;
2734                         flags |= IEEE80211_F_WPA1 | IEEE80211_F_WPA2;
2735                         break;
2736                 default:        /*  Can't set any -> error */
2737                         return EOPNOTSUPP;
2738                 }
2739                 vap->iv_flags = flags;
2740                 error = ERESTART;       /* NB: can change beacon frame */
2741                 break;
2742         case IEEE80211_IOC_WME:
2743                 if (ireq->i_val) {
2744                         if ((vap->iv_caps & IEEE80211_C_WME) == 0)
2745                                 return EOPNOTSUPP;
2746                         ieee80211_syncflag(vap, IEEE80211_F_WME);
2747                 } else
2748                         ieee80211_syncflag(vap, -IEEE80211_F_WME);
2749                 error = ERESTART;       /* NB: can change beacon frame */
2750                 break;
2751         case IEEE80211_IOC_HIDESSID:
2752                 if (ireq->i_val)
2753                         vap->iv_flags |= IEEE80211_F_HIDESSID;
2754                 else
2755                         vap->iv_flags &= ~IEEE80211_F_HIDESSID;
2756                 error = ERESTART;               /* XXX ENETRESET? */
2757                 break;
2758         case IEEE80211_IOC_APBRIDGE:
2759                 if (ireq->i_val == 0)
2760                         vap->iv_flags |= IEEE80211_F_NOBRIDGE;
2761                 else
2762                         vap->iv_flags &= ~IEEE80211_F_NOBRIDGE;
2763                 break;
2764         case IEEE80211_IOC_BSSID:
2765                 if (ireq->i_len != sizeof(tmpbssid))
2766                         return EINVAL;
2767                 error = copyin(ireq->i_data, tmpbssid, ireq->i_len);
2768                 if (error)
2769                         break;
2770                 IEEE80211_ADDR_COPY(vap->iv_des_bssid, tmpbssid);
2771                 if (IEEE80211_ADDR_EQ(vap->iv_des_bssid, zerobssid))
2772                         vap->iv_flags &= ~IEEE80211_F_DESBSSID;
2773                 else
2774                         vap->iv_flags |= IEEE80211_F_DESBSSID;
2775                 error = ENETRESET;
2776                 break;
2777         case IEEE80211_IOC_CHANLIST:
2778                 error = ieee80211_ioctl_setchanlist(vap, ireq);
2779                 break;
2780 #define OLD_IEEE80211_IOC_SCAN_REQ      23
2781 #ifdef OLD_IEEE80211_IOC_SCAN_REQ
2782         case OLD_IEEE80211_IOC_SCAN_REQ:
2783                 IEEE80211_DPRINTF(vap, IEEE80211_MSG_SCAN,
2784                         "%s: active scan request\n", __func__);
2785                 /*
2786                  * If we are in INIT state then the driver has never
2787                  * had a chance to setup hardware state to do a scan;
2788                  * use the state machine to get us up the SCAN state.
2789                  * Otherwise just invoke the scan machinery to start
2790                  * a one-time scan.
2791                  */
2792                 if (vap->iv_state == IEEE80211_S_INIT)
2793                         ieee80211_new_state(vap, IEEE80211_S_SCAN, 0);
2794                 else
2795                         (void) ieee80211_start_scan(vap,
2796                                 IEEE80211_SCAN_ACTIVE |
2797                                 IEEE80211_SCAN_NOPICK |
2798                                 IEEE80211_SCAN_ONCE,
2799                                 IEEE80211_SCAN_FOREVER, 0, 0,
2800                                 /* XXX use ioctl params */
2801                                 vap->iv_des_nssid, vap->iv_des_ssid);
2802                 break;
2803 #endif /* OLD_IEEE80211_IOC_SCAN_REQ */
2804         case IEEE80211_IOC_SCAN_REQ:
2805                 error = ieee80211_ioctl_scanreq(vap, ireq);
2806                 break;
2807         case IEEE80211_IOC_SCAN_CANCEL:
2808                 IEEE80211_DPRINTF(vap, IEEE80211_MSG_SCAN,
2809                     "%s: cancel scan\n", __func__);
2810                 ieee80211_cancel_scan(vap);
2811                 break;
2812         case IEEE80211_IOC_HTCONF:
2813                 if (ireq->i_val & 1)
2814                         ieee80211_syncflag_ext(vap, IEEE80211_FEXT_HT);
2815                 else
2816                         ieee80211_syncflag_ext(vap, -IEEE80211_FEXT_HT);
2817                 if (ireq->i_val & 2)
2818                         ieee80211_syncflag_ext(vap, IEEE80211_FEXT_USEHT40);
2819                 else
2820                         ieee80211_syncflag_ext(vap, -IEEE80211_FEXT_USEHT40);
2821                 error = ENETRESET;
2822                 break;
2823         case IEEE80211_IOC_ADDMAC:
2824         case IEEE80211_IOC_DELMAC:
2825                 error = ieee80211_ioctl_macmac(vap, ireq);
2826                 break;
2827         case IEEE80211_IOC_MACCMD:
2828                 error = ieee80211_ioctl_setmaccmd(vap, ireq);
2829                 break;
2830         case IEEE80211_IOC_STA_STATS:
2831                 error = ieee80211_ioctl_setstastats(vap, ireq);
2832                 break;
2833         case IEEE80211_IOC_STA_TXPOW:
2834                 error = ieee80211_ioctl_setstatxpow(vap, ireq);
2835                 break;
2836         case IEEE80211_IOC_WME_CWMIN:           /* WME: CWmin */
2837         case IEEE80211_IOC_WME_CWMAX:           /* WME: CWmax */
2838         case IEEE80211_IOC_WME_AIFS:            /* WME: AIFS */
2839         case IEEE80211_IOC_WME_TXOPLIMIT:       /* WME: txops limit */
2840         case IEEE80211_IOC_WME_ACM:             /* WME: ACM (bss only) */
2841         case IEEE80211_IOC_WME_ACKPOLICY:       /* WME: ACK policy (bss only) */
2842                 error = ieee80211_ioctl_setwmeparam(vap, ireq);
2843                 break;
2844         case IEEE80211_IOC_DTIM_PERIOD:
2845                 if (vap->iv_opmode != IEEE80211_M_HOSTAP &&
2846                     vap->iv_opmode != IEEE80211_M_IBSS)
2847                         return EINVAL;
2848                 if (IEEE80211_DTIM_MIN <= ireq->i_val &&
2849                     ireq->i_val <= IEEE80211_DTIM_MAX) {
2850                         vap->iv_dtim_period = ireq->i_val;
2851                         error = ENETRESET;              /* requires restart */
2852                 } else
2853                         error = EINVAL;
2854                 break;
2855         case IEEE80211_IOC_BEACON_INTERVAL:
2856                 if (vap->iv_opmode != IEEE80211_M_HOSTAP &&
2857                     vap->iv_opmode != IEEE80211_M_IBSS)
2858                         return EINVAL;
2859                 if (IEEE80211_BINTVAL_MIN <= ireq->i_val &&
2860                     ireq->i_val <= IEEE80211_BINTVAL_MAX) {
2861                         ic->ic_bintval = ireq->i_val;
2862                         error = ENETRESET;              /* requires restart */
2863                 } else
2864                         error = EINVAL;
2865                 break;
2866         case IEEE80211_IOC_PUREG:
2867                 if (ireq->i_val)
2868                         vap->iv_flags |= IEEE80211_F_PUREG;
2869                 else
2870                         vap->iv_flags &= ~IEEE80211_F_PUREG;
2871                 /* NB: reset only if we're operating on an 11g channel */
2872                 if (isvap11g(vap))
2873                         error = ENETRESET;
2874                 break;
2875         case IEEE80211_IOC_BGSCAN:
2876                 if (ireq->i_val) {
2877                         if ((vap->iv_caps & IEEE80211_C_BGSCAN) == 0)
2878                                 return EOPNOTSUPP;
2879                         vap->iv_flags |= IEEE80211_F_BGSCAN;
2880                 } else
2881                         vap->iv_flags &= ~IEEE80211_F_BGSCAN;
2882                 break;
2883         case IEEE80211_IOC_BGSCAN_IDLE:
2884                 if (ireq->i_val >= IEEE80211_BGSCAN_IDLE_MIN)
2885                         vap->iv_bgscanidle = ireq->i_val*hz/1000;
2886                 else
2887                         error = EINVAL;
2888                 break;
2889         case IEEE80211_IOC_BGSCAN_INTERVAL:
2890                 if (ireq->i_val >= IEEE80211_BGSCAN_INTVAL_MIN)
2891                         vap->iv_bgscanintvl = ireq->i_val*hz;
2892                 else
2893                         error = EINVAL;
2894                 break;
2895         case IEEE80211_IOC_SCANVALID:
2896                 if (ireq->i_val >= IEEE80211_SCAN_VALID_MIN)
2897                         vap->iv_scanvalid = ireq->i_val*hz;
2898                 else
2899                         error = EINVAL;
2900                 break;
2901         case IEEE80211_IOC_FRAGTHRESHOLD:
2902                 if ((vap->iv_caps & IEEE80211_C_TXFRAG) == 0 &&
2903                     ireq->i_val != IEEE80211_FRAG_MAX)
2904                         return EOPNOTSUPP;
2905                 if (!(IEEE80211_FRAG_MIN <= ireq->i_val &&
2906                       ireq->i_val <= IEEE80211_FRAG_MAX))
2907                         return EINVAL;
2908                 vap->iv_fragthreshold = ireq->i_val;
2909                 error = ERESTART;
2910                 break;
2911         case IEEE80211_IOC_BURST:
2912                 if (ireq->i_val) {
2913                         if ((vap->iv_caps & IEEE80211_C_BURST) == 0)
2914                                 return EOPNOTSUPP;
2915                         ieee80211_syncflag(vap, IEEE80211_F_BURST);
2916                 } else
2917                         ieee80211_syncflag(vap, -IEEE80211_F_BURST);
2918                 error = ERESTART;
2919                 break;
2920         case IEEE80211_IOC_BMISSTHRESHOLD:
2921                 if (!(IEEE80211_HWBMISS_MIN <= ireq->i_val &&
2922                       ireq->i_val <= IEEE80211_HWBMISS_MAX))
2923                         return EINVAL;
2924                 vap->iv_bmissthreshold = ireq->i_val;
2925                 error = ERESTART;
2926                 break;
2927         case IEEE80211_IOC_CURCHAN:
2928                 error = ieee80211_ioctl_setcurchan(vap, ireq);
2929                 break;
2930         case IEEE80211_IOC_SHORTGI:
2931                 if (ireq->i_val) {
2932 #define IEEE80211_HTCAP_SHORTGI \
2933         (IEEE80211_HTCAP_SHORTGI20 | IEEE80211_HTCAP_SHORTGI40)
2934                         if (((ireq->i_val ^ vap->iv_htcaps) & IEEE80211_HTCAP_SHORTGI) != 0)
2935                                 return EINVAL;
2936                         if (ireq->i_val & IEEE80211_HTCAP_SHORTGI20)
2937                                 vap->iv_flags_ext |= IEEE80211_FEXT_SHORTGI20;
2938                         if (ireq->i_val & IEEE80211_HTCAP_SHORTGI40)
2939                                 vap->iv_flags_ext |= IEEE80211_FEXT_SHORTGI40;
2940 #undef IEEE80211_HTCAP_SHORTGI
2941                 } else
2942                         vap->iv_flags_ext &=
2943                             ~(IEEE80211_FEXT_SHORTGI20 | IEEE80211_FEXT_SHORTGI40);
2944                 error = ERESTART;
2945                 break;
2946         case IEEE80211_IOC_AMPDU:
2947                 if (ireq->i_val && (vap->iv_htcaps & IEEE80211_HTC_AMPDU) == 0)
2948                         return EINVAL;
2949                 if (ireq->i_val & 1)
2950                         vap->iv_flags_ext |= IEEE80211_FEXT_AMPDU_TX;
2951                 else
2952                         vap->iv_flags_ext &= ~IEEE80211_FEXT_AMPDU_TX;
2953                 if (ireq->i_val & 2)
2954                         vap->iv_flags_ext |= IEEE80211_FEXT_AMPDU_RX;
2955                 else
2956                         vap->iv_flags_ext &= ~IEEE80211_FEXT_AMPDU_RX;
2957                 /* NB: reset only if we're operating on an 11n channel */
2958                 if (isvapht(vap))
2959                         error = ERESTART;
2960                 break;
2961         case IEEE80211_IOC_AMPDU_LIMIT:
2962                 if (!(IEEE80211_HTCAP_MAXRXAMPDU_8K <= ireq->i_val &&
2963                       ireq->i_val <= IEEE80211_HTCAP_MAXRXAMPDU_64K))
2964                         return EINVAL;
2965                 if (vap->iv_opmode == IEEE80211_M_HOSTAP)
2966                         vap->iv_ampdu_rxmax = ireq->i_val;
2967                 else
2968                         vap->iv_ampdu_limit = ireq->i_val;
2969                 error = ERESTART;
2970                 break;
2971         case IEEE80211_IOC_AMPDU_DENSITY:
2972                 if (!(IEEE80211_HTCAP_MPDUDENSITY_NA <= ireq->i_val &&
2973                       ireq->i_val <= IEEE80211_HTCAP_MPDUDENSITY_16))
2974                         return EINVAL;
2975                 vap->iv_ampdu_density = ireq->i_val;
2976                 error = ERESTART;
2977                 break;
2978         case IEEE80211_IOC_AMSDU:
2979                 if (ireq->i_val && (vap->iv_htcaps & IEEE80211_HTC_AMSDU) == 0)
2980                         return EINVAL;
2981                 if (ireq->i_val & 1)
2982                         vap->iv_flags_ext |= IEEE80211_FEXT_AMSDU_TX;
2983                 else
2984                         vap->iv_flags_ext &= ~IEEE80211_FEXT_AMSDU_TX;
2985                 if (ireq->i_val & 2)
2986                         vap->iv_flags_ext |= IEEE80211_FEXT_AMSDU_RX;
2987                 else
2988                         vap->iv_flags_ext &= ~IEEE80211_FEXT_AMSDU_RX;
2989                 /* NB: reset only if we're operating on an 11n channel */
2990                 if (isvapht(vap))
2991                         error = ERESTART;
2992                 break;
2993         case IEEE80211_IOC_AMSDU_LIMIT:
2994                 /* XXX validate */
2995                 vap->iv_amsdu_limit = ireq->i_val;      /* XXX truncation? */
2996                 break;
2997         case IEEE80211_IOC_PUREN:
2998                 if (ireq->i_val) {
2999                         if ((vap->iv_flags_ext & IEEE80211_FEXT_HT) == 0)
3000                                 return EINVAL;
3001                         vap->iv_flags_ext |= IEEE80211_FEXT_PUREN;
3002                 } else
3003                         vap->iv_flags_ext &= ~IEEE80211_FEXT_PUREN;
3004                 /* NB: reset only if we're operating on an 11n channel */
3005                 if (isvapht(vap))
3006                         error = ERESTART;
3007                 break;
3008         case IEEE80211_IOC_DOTH:
3009                 if (ireq->i_val) {
3010 #if 0
3011                         /* XXX no capability */
3012                         if ((vap->iv_caps & IEEE80211_C_DOTH) == 0)
3013                                 return EOPNOTSUPP;
3014 #endif
3015                         vap->iv_flags |= IEEE80211_F_DOTH;
3016                 } else
3017                         vap->iv_flags &= ~IEEE80211_F_DOTH;
3018                 error = ENETRESET;
3019                 break;
3020         case IEEE80211_IOC_REGDOMAIN:
3021                 error = ieee80211_ioctl_setregdomain(vap, ireq);
3022                 break;
3023         case IEEE80211_IOC_ROAM:
3024                 error = ieee80211_ioctl_setroam(vap, ireq);
3025                 break;
3026         case IEEE80211_IOC_TXPARAMS:
3027                 error = ieee80211_ioctl_settxparams(vap, ireq);
3028                 break;
3029         case IEEE80211_IOC_HTCOMPAT:
3030                 if (ireq->i_val) {
3031                         if ((vap->iv_flags_ext & IEEE80211_FEXT_HT) == 0)
3032                                 return EOPNOTSUPP;
3033                         vap->iv_flags_ext |= IEEE80211_FEXT_HTCOMPAT;
3034                 } else
3035                         vap->iv_flags_ext &= ~IEEE80211_FEXT_HTCOMPAT;
3036                 /* NB: reset only if we're operating on an 11n channel */
3037                 if (isvapht(vap))
3038                         error = ERESTART;
3039                 break;
3040         case IEEE80211_IOC_DWDS:
3041                 if (ireq->i_val) {
3042                         /* NB: DWDS only makes sense for WDS-capable devices */
3043                         if ((ic->ic_caps & IEEE80211_C_WDS) == 0)
3044                                 return EOPNOTSUPP;
3045                         /* NB: DWDS is used only with ap+sta vaps */
3046                         if (vap->iv_opmode != IEEE80211_M_HOSTAP &&
3047                             vap->iv_opmode != IEEE80211_M_STA)
3048                                 return EINVAL;
3049                         vap->iv_flags |= IEEE80211_F_DWDS;
3050                         if (vap->iv_opmode == IEEE80211_M_STA)
3051                                 vap->iv_flags_ext |= IEEE80211_FEXT_4ADDR;
3052                 } else {
3053                         vap->iv_flags &= ~IEEE80211_F_DWDS;
3054                         if (vap->iv_opmode == IEEE80211_M_STA)
3055                                 vap->iv_flags_ext &= ~IEEE80211_FEXT_4ADDR;
3056                 }
3057                 break;
3058         case IEEE80211_IOC_INACTIVITY:
3059                 if (ireq->i_val)
3060                         vap->iv_flags_ext |= IEEE80211_FEXT_INACT;
3061                 else
3062                         vap->iv_flags_ext &= ~IEEE80211_FEXT_INACT;
3063                 break;
3064         case IEEE80211_IOC_APPIE:
3065                 error = ieee80211_ioctl_setappie(vap, ireq);
3066                 break;
3067         case IEEE80211_IOC_WPS:
3068                 if (ireq->i_val) {
3069                         if ((vap->iv_caps & IEEE80211_C_WPA) == 0)
3070                                 return EOPNOTSUPP;
3071                         vap->iv_flags_ext |= IEEE80211_FEXT_WPS;
3072                 } else
3073                         vap->iv_flags_ext &= ~IEEE80211_FEXT_WPS;
3074                 break;
3075         case IEEE80211_IOC_TSN:
3076                 if (ireq->i_val) {
3077                         if ((vap->iv_caps & IEEE80211_C_WPA) == 0)
3078                                 return EOPNOTSUPP;
3079                         vap->iv_flags_ext |= IEEE80211_FEXT_TSN;
3080                 } else
3081                         vap->iv_flags_ext &= ~IEEE80211_FEXT_TSN;
3082                 break;
3083         case IEEE80211_IOC_CHANSWITCH:
3084                 error = ieee80211_ioctl_chanswitch(vap, ireq);
3085                 break;
3086         case IEEE80211_IOC_DFS:
3087                 if (ireq->i_val) {
3088                         if ((vap->iv_caps & IEEE80211_C_DFS) == 0)
3089                                 return EOPNOTSUPP;
3090                         /* NB: DFS requires 11h support */
3091                         if ((vap->iv_flags & IEEE80211_F_DOTH) == 0)
3092                                 return EINVAL;
3093                         vap->iv_flags_ext |= IEEE80211_FEXT_DFS;
3094                 } else
3095                         vap->iv_flags_ext &= ~IEEE80211_FEXT_DFS;
3096                 break;
3097         case IEEE80211_IOC_DOTD:
3098                 if (ireq->i_val)
3099                         vap->iv_flags_ext |= IEEE80211_FEXT_DOTD;
3100                 else
3101                         vap->iv_flags_ext &= ~IEEE80211_FEXT_DOTD;
3102                 if (vap->iv_opmode == IEEE80211_M_STA)
3103                         error = ENETRESET;
3104                 break;
3105         case IEEE80211_IOC_HTPROTMODE:
3106                 if (ireq->i_val > IEEE80211_PROT_RTSCTS)
3107                         return EINVAL;
3108                 ic->ic_htprotmode = ireq->i_val ?
3109                     IEEE80211_PROT_RTSCTS : IEEE80211_PROT_NONE;
3110                 /* NB: if not operating in 11n this can wait */
3111                 if (isvapht(vap))
3112                         error = ERESTART;
3113                 break;
3114         case IEEE80211_IOC_STA_VLAN:
3115                 error = ieee80211_ioctl_setstavlan(vap, ireq);
3116                 break;
3117         case IEEE80211_IOC_SMPS:
3118                 if ((ireq->i_val &~ IEEE80211_HTCAP_SMPS) != 0 ||
3119                     ireq->i_val == 0x0008)      /* value of 2 is reserved */
3120                         return EINVAL;
3121                 if (ireq->i_val != IEEE80211_HTCAP_SMPS_OFF &&
3122                     (vap->iv_htcaps & IEEE80211_HTC_SMPS) == 0)
3123                         return EOPNOTSUPP;
3124                 vap->iv_htcaps = (vap->iv_htcaps &~ IEEE80211_HTCAP_SMPS) |
3125                         ireq->i_val;
3126                 /* NB: if not operating in 11n this can wait */
3127                 if (isvapht(vap))
3128                         error = ERESTART;
3129                 break;
3130         case IEEE80211_IOC_RIFS:
3131                 if (ireq->i_val != 0) {
3132                         if ((vap->iv_htcaps & IEEE80211_HTC_RIFS) == 0)
3133                                 return EOPNOTSUPP;
3134                         vap->iv_flags_ext |= IEEE80211_FEXT_RIFS;
3135                 } else
3136                         vap->iv_flags_ext &= ~IEEE80211_FEXT_RIFS;
3137                 /* NB: if not operating in 11n this can wait */
3138                 if (isvapht(vap))
3139                         error = ERESTART;
3140                 break;
3141         default:
3142                 error = ieee80211_ioctl_setdefault(vap, ireq);
3143                 break;
3144         }
3145         /*
3146          * The convention is that ENETRESET means an operation
3147          * requires a complete re-initialization of the device (e.g.
3148          * changing something that affects the association state).
3149          * ERESTART means the request may be handled with only a
3150          * reload of the hardware state.  We hand ERESTART requests
3151          * to the iv_reset callback so the driver can decide.  If
3152          * a device does not fillin iv_reset then it defaults to one
3153          * that returns ENETRESET.  Otherwise a driver may return
3154          * ENETRESET (in which case a full reset will be done) or
3155          * 0 to mean there's no need to do anything (e.g. when the
3156          * change has no effect on the driver/device).
3157          */
3158         if (error == ERESTART)
3159                 error = IFNET_IS_UP_RUNNING(vap->iv_ifp) ?
3160                     vap->iv_reset(vap, ireq->i_type) : 0;
3161         if (error == ENETRESET) {
3162                 /* XXX need to re-think AUTO handling */
3163                 if (IS_UP_AUTO(vap))
3164                         ieee80211_init(vap);
3165                 error = 0;
3166         }
3167         return error;
3168 }
3169
3170 /*
3171  * Rebuild the parent's multicast address list after an add/del
3172  * of a multicast address for a vap.  We have no way to tell
3173  * what happened above to optimize the work so we purge the entire
3174  * list and rebuild from scratch.  This is way expensive.
3175  * Note also the half-baked workaround for if_addmulti calling
3176  * back to the parent device; there's no way to insert mcast
3177  * entries quietly and/or cheaply.
3178  */
3179 static void
3180 ieee80211_ioctl_updatemulti(struct ieee80211com *ic)
3181 {
3182         struct ifnet *parent = ic->ic_ifp;
3183         struct ieee80211vap *vap;
3184         void *ioctl;
3185
3186         IEEE80211_LOCK(ic);
3187         if_purgemaddrs(parent);
3188         ioctl = parent->if_ioctl;       /* XXX WAR if_allmulti */
3189         parent->if_ioctl = NULL;
3190         TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) {
3191                 struct ifnet *ifp = vap->iv_ifp;
3192                 struct ifmultiaddr *ifma;
3193
3194                 TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link)
3195                         (void) if_addmulti(parent, ifma->ifma_addr, NULL);
3196         }
3197         parent->if_ioctl = ioctl;
3198         ieee80211_runtask(ic, &ic->ic_mcast_task);
3199         IEEE80211_UNLOCK(ic);
3200 }
3201
3202 int
3203 ieee80211_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
3204 {
3205         struct ieee80211vap *vap;
3206         struct ieee80211com *ic;
3207         int error = 0;
3208         struct ifreq *ifr;
3209         struct ifaddr *ifa;                     /* XXX */
3210
3211         vap = ifp->if_softc;
3212         if (vap == NULL) {
3213                 /*
3214                  * During detach we clear the backpointer in the softc
3215                  * so any ioctl request through the ifnet that arrives
3216                  * before teardown is ignored/rejected.  In particular
3217                  * this hack handles destroying a vap used by an app
3218                  * like wpa_supplicant that will respond to the vap
3219                  * being forced into INIT state by immediately trying
3220                  * to force it back up.  We can yank this hack if/when
3221                  * we can destroy the ifnet before cleaning up vap state.
3222                  */
3223                 return ENXIO;
3224         }
3225         switch (cmd) {
3226         case SIOCSIFFLAGS:
3227                 ic = vap->iv_ic;
3228                 IEEE80211_LOCK(ic);
3229                 ieee80211_syncifflag_locked(ic, IFF_PROMISC);
3230                 ieee80211_syncifflag_locked(ic, IFF_ALLMULTI);
3231                 if (ifp->if_flags & IFF_UP) {
3232                         /*
3233                          * Bring ourself up unless we're already operational.
3234                          * If we're the first vap and the parent is not up
3235                          * then it will automatically be brought up as a
3236                          * side-effect of bringing ourself up.
3237                          */
3238                         if (vap->iv_state == IEEE80211_S_INIT)
3239                                 ieee80211_start_locked(vap);
3240                 } else if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
3241                         /*
3242                          * Stop ourself.  If we are the last vap to be
3243                          * marked down the parent will also be taken down.
3244                          */
3245                         ieee80211_stop_locked(vap);
3246                 }
3247                 IEEE80211_UNLOCK(ic);
3248                 /* Wait for parent ioctl handler if it was queued */
3249                 ieee80211_waitfor_parent(ic);
3250                 break;
3251         case SIOCADDMULTI:
3252         case SIOCDELMULTI:
3253                 ieee80211_ioctl_updatemulti(vap->iv_ic);
3254                 break;
3255         case SIOCSIFMEDIA:
3256         case SIOCGIFMEDIA:
3257                 ifr = (struct ifreq *)data;
3258                 error = ifmedia_ioctl(ifp, ifr, &vap->iv_media, cmd);
3259                 break;
3260         case SIOCG80211:
3261                 error = ieee80211_ioctl_get80211(vap, cmd,
3262                                 (struct ieee80211req *) data);
3263                 break;
3264         case SIOCS80211:
3265                 error = priv_check(curthread, PRIV_NET80211_MANAGE);
3266                 if (error == 0)
3267                         error = ieee80211_ioctl_set80211(vap, cmd,
3268                                         (struct ieee80211req *) data);
3269                 break;
3270         case SIOCG80211STATS:
3271                 ifr = (struct ifreq *)data;
3272                 copyout(&vap->iv_stats, ifr->ifr_data, sizeof (vap->iv_stats));
3273                 break;
3274         case SIOCSIFMTU:
3275                 ifr = (struct ifreq *)data;
3276                 if (!(IEEE80211_MTU_MIN <= ifr->ifr_mtu &&
3277                     ifr->ifr_mtu <= IEEE80211_MTU_MAX))
3278                         error = EINVAL;
3279                 else
3280                         ifp->if_mtu = ifr->ifr_mtu;
3281                 break;
3282         case SIOCSIFADDR:
3283                 /*
3284                  * XXX Handle this directly so we can supress if_init calls.
3285                  * XXX This should be done in ether_ioctl but for the moment
3286                  * XXX there are too many other parts of the system that
3287                  * XXX set IFF_UP and so supress if_init being called when
3288                  * XXX it should be.
3289                  */
3290                 ifa = (struct ifaddr *) data;
3291                 switch (ifa->ifa_addr->sa_family) {
3292 #ifdef INET
3293                 case AF_INET:
3294                         if ((ifp->if_flags & IFF_UP) == 0) {
3295                                 ifp->if_flags |= IFF_UP;
3296                                 ifp->if_init(ifp->if_softc);
3297                         }
3298                         arp_ifinit(ifp, ifa);
3299                         break;
3300 #endif
3301 #ifdef IPX
3302                 /*
3303                  * XXX - This code is probably wrong,
3304                  *       but has been copied many times.
3305                  */
3306                 case AF_IPX: {
3307                         struct ipx_addr *ina = &(IA_SIPX(ifa)->sipx_addr);
3308
3309                         if (ipx_nullhost(*ina))
3310                                 ina->x_host = *(union ipx_host *)
3311                                     IF_LLADDR(ifp);
3312                         else
3313                                 bcopy((caddr_t) ina->x_host.c_host,
3314                                       (caddr_t) IF_LLADDR(ifp),
3315                                       ETHER_ADDR_LEN);
3316                         /* fall thru... */
3317                 }
3318 #endif
3319                 default:
3320                         if ((ifp->if_flags & IFF_UP) == 0) {
3321                                 ifp->if_flags |= IFF_UP;
3322                                 ifp->if_init(ifp->if_softc);
3323                         }
3324                         break;
3325                 }
3326                 break;
3327         /* Pass NDIS ioctls up to the driver */
3328         case SIOCGDRVSPEC:
3329         case SIOCSDRVSPEC:
3330         case SIOCGPRIVATE_0: {
3331                 struct ifnet *parent = vap->iv_ic->ic_ifp;
3332                 error = parent->if_ioctl(parent, cmd, data);
3333                 break;
3334         }
3335         default:
3336                 error = ether_ioctl(ifp, cmd, data);
3337                 break;
3338         }
3339         return error;
3340 }