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] +
 245             se->se_meshid[1] + *ielen;
 246         return roundup(len, sizeof(uint32_t));
 247 }
 248
 249 static void
 250 get_scan_space(void *arg, const struct ieee80211_scan_entry *se)
 251 {
 252         struct scanreq *req = arg;
 253         int ielen;
 254
 255         req->space += scan_space(se, &ielen);
 256 }
 257
 258 static __noinline void
 259 get_scan_result(void *arg, const struct ieee80211_scan_entry *se)
 260 {
 261         struct scanreq *req = arg;
 262         struct ieee80211req_scan_result *sr;
 263         int ielen, len, nr, nxr;
 264         uint8_t *cp;
 265
 266         len = scan_space(se, &ielen);
 267         if (len > req->space)
 268                 return;
 269
 270         sr = req->sr;
 271         KASSERT(len <= 65535 && ielen <= 65535,
 272             ("len %u ssid %u ie %u", len, se->se_ssid[1], ielen));
 273         sr->isr_len = len;
 274         sr->isr_ie_off = sizeof(struct ieee80211req_scan_result);
 275         sr->isr_ie_len = ielen;
 276         sr->isr_freq = se->se_chan->ic_freq;
 277         sr->isr_flags = se->se_chan->ic_flags;
 278         sr->isr_rssi = se->se_rssi;
 279         sr->isr_noise = se->se_noise;
 280         sr->isr_intval = se->se_intval;
 281         sr->isr_capinfo = se->se_capinfo;
 282         sr->isr_erp = se->se_erp;
 283         IEEE80211_ADDR_COPY(sr->isr_bssid, se->se_bssid);
 284         nr = min(se->se_rates[1], IEEE80211_RATE_MAXSIZE);
 285         memcpy(sr->isr_rates, se->se_rates+2, nr);
 286         nxr = min(se->se_xrates[1], IEEE80211_RATE_MAXSIZE - nr);
 287         memcpy(sr->isr_rates+nr, se->se_xrates+2, nxr);
 288         sr->isr_nrates = nr + nxr;
 289
 290         /* copy SSID */
 291         sr->isr_ssid_len = se->se_ssid[1];
 292         cp = ((uint8_t *)sr) + sr->isr_ie_off;
 293         memcpy(cp, se->se_ssid+2, sr->isr_ssid_len);
 294
 295         /* copy mesh id */
 296         cp += sr->isr_ssid_len;
 297         sr->isr_meshid_len = se->se_meshid[1];
 298         memcpy(cp, se->se_meshid+2, sr->isr_meshid_len);
 299         cp += sr->isr_meshid_len;
 300
 301         if (ielen)
 302                 memcpy(cp, se->se_ies.data, ielen);
 303
 304         req->space -= len;
 305         req->sr = (struct ieee80211req_scan_result *)(((uint8_t *)sr) + len);
 306 }
 307
 308 static __noinline int
 309 ieee80211_ioctl_getscanresults(struct ieee80211vap *vap,
 310         struct ieee80211req *ireq)
 311 {
 312         struct scanreq req;
 313         int error;
 314
 315         if (ireq->i_len < sizeof(struct scanreq))
 316                 return EFAULT;
 317
 318         error = 0;
 319         req.space = 0;
 320         ieee80211_scan_iterate(vap, get_scan_space, &req);
 321         if (req.space > ireq->i_len)
 322                 req.space = ireq->i_len;
 323         if (req.space > 0) {
 324                 size_t space;
 325                 void *p;
 326
 327                 space = req.space;
 328                 /* XXX M_WAITOK after driver lock released */
 329                 p = malloc(space, M_TEMP, M_NOWAIT | M_ZERO);
 330                 if (p == NULL)
 331                         return ENOMEM;
 332                 req.sr = p;
 333                 ieee80211_scan_iterate(vap, get_scan_result, &req);
 334                 ireq->i_len = space - req.space;
 335                 error = copyout(p, ireq->i_data, ireq->i_len);
 336                 free(p, M_TEMP);
 337         } else
 338                 ireq->i_len = 0;
 339
 340         return error;
 341 }
 342
 343 struct stainforeq {
 344         struct ieee80211vap *vap;
 345         struct ieee80211req_sta_info *si;
 346         size_t  space;
 347 };
 348
 349 static size_t
 350 sta_space(const struct ieee80211_node *ni, size_t *ielen)
 351 {
 352         *ielen = ni->ni_ies.len;
 353         return roundup(sizeof(struct ieee80211req_sta_info) + *ielen,
 354                       sizeof(uint32_t));
 355 }
 356
 357 static void
 358 get_sta_space(void *arg, struct ieee80211_node *ni)
 359 {
 360         struct stainforeq *req = arg;
 361         size_t ielen;
 362
 363         if (req->vap != ni->ni_vap)
 364                 return;
 365         if (ni->ni_vap->iv_opmode == IEEE80211_M_HOSTAP &&
 366             ni->ni_associd == 0)        /* only associated stations */
 367                 return;
 368         req->space += sta_space(ni, &ielen);
 369 }
 370
 371 static __noinline void
 372 get_sta_info(void *arg, struct ieee80211_node *ni)
 373 {
 374         struct stainforeq *req = arg;
 375         struct ieee80211vap *vap = ni->ni_vap;
 376         struct ieee80211req_sta_info *si;
 377         size_t ielen, len;
 378         uint8_t *cp;
 379
 380         if (req->vap != ni->ni_vap)
 381                 return;
 382         if (vap->iv_opmode == IEEE80211_M_HOSTAP &&
 383             ni->ni_associd == 0)        /* only associated stations */
 384                 return;
 385         if (ni->ni_chan == IEEE80211_CHAN_ANYC) /* XXX bogus entry */
 386                 return;
 387         len = sta_space(ni, &ielen);
 388         if (len > req->space)
 389                 return;
 390         si = req->si;
 391         si->isi_len = len;
 392         si->isi_ie_off = sizeof(struct ieee80211req_sta_info);
 393         si->isi_ie_len = ielen;
 394         si->isi_freq = ni->ni_chan->ic_freq;
 395         si->isi_flags = ni->ni_chan->ic_flags;
 396         si->isi_state = ni->ni_flags;
 397         si->isi_authmode = ni->ni_authmode;
 398         vap->iv_ic->ic_node_getsignal(ni, &si->isi_rssi, &si->isi_noise);
 399         vap->iv_ic->ic_node_getmimoinfo(ni, &si->isi_mimo);
 400         si->isi_capinfo = ni->ni_capinfo;
 401         si->isi_erp = ni->ni_erp;
 402         IEEE80211_ADDR_COPY(si->isi_macaddr, ni->ni_macaddr);
 403         si->isi_nrates = ni->ni_rates.rs_nrates;
 404         if (si->isi_nrates > 15)
 405                 si->isi_nrates = 15;
 406         memcpy(si->isi_rates, ni->ni_rates.rs_rates, si->isi_nrates);
 407         si->isi_txrate = ni->ni_txrate;
 408         if (si->isi_txrate & IEEE80211_RATE_MCS) {
 409                 const struct ieee80211_mcs_rates *mcs =
 410                     &ieee80211_htrates[ni->ni_txrate &~ IEEE80211_RATE_MCS];
 411                 if (IEEE80211_IS_CHAN_HT40(ni->ni_chan)) {
 412                         if (ni->ni_flags & IEEE80211_NODE_SGI40)
 413                                 si->isi_txmbps = mcs->ht40_rate_800ns;
 414                         else
 415                                 si->isi_txmbps = mcs->ht40_rate_400ns;
 416                 } else {
 417                         if (ni->ni_flags & IEEE80211_NODE_SGI20)
 418                                 si->isi_txmbps = mcs->ht20_rate_800ns;
 419                         else
 420                                 si->isi_txmbps = mcs->ht20_rate_400ns;
 421                 }
 422         } else
 423                 si->isi_txmbps = si->isi_txrate;
 424         si->isi_associd = ni->ni_associd;
 425         si->isi_txpower = ni->ni_txpower;
 426         si->isi_vlan = ni->ni_vlan;
 427         if (ni->ni_flags & IEEE80211_NODE_QOS) {
 428                 memcpy(si->isi_txseqs, ni->ni_txseqs, sizeof(ni->ni_txseqs));
 429                 memcpy(si->isi_rxseqs, ni->ni_rxseqs, sizeof(ni->ni_rxseqs));
 430         } else {
 431                 si->isi_txseqs[0] = ni->ni_txseqs[IEEE80211_NONQOS_TID];
 432                 si->isi_rxseqs[0] = ni->ni_rxseqs[IEEE80211_NONQOS_TID];
 433         }
 434         /* NB: leave all cases in case we relax ni_associd == 0 check */
 435         if (ieee80211_node_is_authorized(ni))
 436                 si->isi_inact = vap->iv_inact_run;
 437         else if (ni->ni_associd != 0 ||
 438             (vap->iv_opmode == IEEE80211_M_WDS &&
 439              (vap->iv_flags_ext & IEEE80211_FEXT_WDSLEGACY)))
 440                 si->isi_inact = vap->iv_inact_auth;
 441         else
 442                 si->isi_inact = vap->iv_inact_init;
 443         si->isi_inact = (si->isi_inact - ni->ni_inact) * IEEE80211_INACT_WAIT;
 444         si->isi_localid = ni->ni_mllid;
 445         si->isi_peerid = ni->ni_mlpid;
 446         si->isi_peerstate = ni->ni_mlstate;
 447
 448         if (ielen) {
 449                 cp = ((uint8_t *)si) + si->isi_ie_off;
 450                 memcpy(cp, ni->ni_ies.data, ielen);
 451         }
 452
 453         req->si = (struct ieee80211req_sta_info *)(((uint8_t *)si) + len);
 454         req->space -= len;
 455 }
 456
 457 static __noinline int
 458 getstainfo_common(struct ieee80211vap *vap, struct ieee80211req *ireq,
 459         struct ieee80211_node *ni, int off)
 460 {
 461         struct ieee80211com *ic = vap->iv_ic;
 462         struct stainforeq req;
 463         size_t space;
 464         void *p;
 465         int error;
 466
 467         error = 0;
 468         req.space = 0;
 469         req.vap = vap;
 470         if (ni == NULL)
 471                 ieee80211_iterate_nodes(&ic->ic_sta, get_sta_space, &req);
 472         else
 473                 get_sta_space(&req, ni);
 474         if (req.space > ireq->i_len)
 475                 req.space = ireq->i_len;
 476         if (req.space > 0) {
 477                 space = req.space;
 478                 /* XXX M_WAITOK after driver lock released */
 479                 p = malloc(space, M_TEMP, M_NOWAIT | M_ZERO);
 480                 if (p == NULL) {
 481                         error = ENOMEM;
 482                         goto bad;
 483                 }
 484                 req.si = p;
 485                 if (ni == NULL)
 486                         ieee80211_iterate_nodes(&ic->ic_sta, get_sta_info, &req);
 487                 else
 488                         get_sta_info(&req, ni);
 489                 ireq->i_len = space - req.space;
 490                 error = copyout(p, (uint8_t *) ireq->i_data+off, ireq->i_len);
 491                 free(p, M_TEMP);
 492         } else
 493                 ireq->i_len = 0;
 494 bad:
 495         if (ni != NULL)
 496                 ieee80211_free_node(ni);
 497         return error;
 498 }
 499
 500 static __noinline int
 501 ieee80211_ioctl_getstainfo(struct ieee80211vap *vap, struct ieee80211req *ireq)
 502 {
 503         uint8_t macaddr[IEEE80211_ADDR_LEN];
 504         const int off = __offsetof(struct ieee80211req_sta_req, info);
 505         struct ieee80211_node *ni;
 506         int error;
 507
 508         if (ireq->i_len < sizeof(struct ieee80211req_sta_req))
 509                 return EFAULT;
 510         error = copyin(ireq->i_data, macaddr, IEEE80211_ADDR_LEN);
 511         if (error != 0)
 512                 return error;
 513         if (IEEE80211_ADDR_EQ(macaddr, vap->iv_ifp->if_broadcastaddr)) {
 514                 ni = NULL;
 515         } else {
 516                 ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap, macaddr);
 517                 if (ni == NULL)
 518                         return ENOENT;
 519         }
 520         return getstainfo_common(vap, ireq, ni, off);
 521 }
 522
 523 static __noinline int
 524 ieee80211_ioctl_getstatxpow(struct ieee80211vap *vap, struct ieee80211req *ireq)
 525 {
 526         struct ieee80211_node *ni;
 527         struct ieee80211req_sta_txpow txpow;
 528         int error;
 529
 530         if (ireq->i_len != sizeof(txpow))
 531                 return EINVAL;
 532         error = copyin(ireq->i_data, &txpow, sizeof(txpow));
 533         if (error != 0)
 534                 return error;
 535         ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap, txpow.it_macaddr);
 536         if (ni == NULL)
 537                 return ENOENT;
 538         txpow.it_txpow = ni->ni_txpower;
 539         error = copyout(&txpow, ireq->i_data, sizeof(txpow));
 540         ieee80211_free_node(ni);
 541         return error;
 542 }
 543
 544 static __noinline int
 545 ieee80211_ioctl_getwmeparam(struct ieee80211vap *vap, struct ieee80211req *ireq)
 546 {
 547         struct ieee80211com *ic = vap->iv_ic;
 548         struct ieee80211_wme_state *wme = &ic->ic_wme;
 549         struct wmeParams *wmep;
 550         int ac;
 551
 552         if ((ic->ic_caps & IEEE80211_C_WME) == 0)
 553                 return EINVAL;
 554
 555         ac = (ireq->i_len & IEEE80211_WMEPARAM_VAL);
 556         if (ac >= WME_NUM_AC)
 557                 ac = WME_AC_BE;
 558         if (ireq->i_len & IEEE80211_WMEPARAM_BSS)
 559                 wmep = &wme->wme_wmeBssChanParams.cap_wmeParams[ac];
 560         else
 561                 wmep = &wme->wme_wmeChanParams.cap_wmeParams[ac];
 562         switch (ireq->i_type) {
 563         case IEEE80211_IOC_WME_CWMIN:           /* WME: CWmin */
 564                 ireq->i_val = wmep->wmep_logcwmin;
 565                 break;
 566         case IEEE80211_IOC_WME_CWMAX:           /* WME: CWmax */
 567                 ireq->i_val = wmep->wmep_logcwmax;
 568                 break;
 569         case IEEE80211_IOC_WME_AIFS:            /* WME: AIFS */
 570                 ireq->i_val = wmep->wmep_aifsn;
 571                 break;
 572         case IEEE80211_IOC_WME_TXOPLIMIT:       /* WME: txops limit */
 573                 ireq->i_val = wmep->wmep_txopLimit;
 574                 break;
 575         case IEEE80211_IOC_WME_ACM:             /* WME: ACM (bss only) */
 576                 wmep = &wme->wme_wmeBssChanParams.cap_wmeParams[ac];
 577                 ireq->i_val = wmep->wmep_acm;
 578                 break;
 579         case IEEE80211_IOC_WME_ACKPOLICY:       /* WME: ACK policy (!bss only)*/
 580                 wmep = &wme->wme_wmeChanParams.cap_wmeParams[ac];
 581                 ireq->i_val = !wmep->wmep_noackPolicy;
 582                 break;
 583         }
 584         return 0;
 585 }
 586
 587 static __noinline int
 588 ieee80211_ioctl_getmaccmd(struct ieee80211vap *vap, struct ieee80211req *ireq)
 589 {
 590         const struct ieee80211_aclator *acl = vap->iv_acl;
 591
 592         return (acl == NULL ? EINVAL : acl->iac_getioctl(vap, ireq));
 593 }
 594
 595 static __noinline int
 596 ieee80211_ioctl_getcurchan(struct ieee80211vap *vap, struct ieee80211req *ireq)
 597 {
 598         struct ieee80211com *ic = vap->iv_ic;
 599         struct ieee80211_channel *c;
 600
 601         if (ireq->i_len != sizeof(struct ieee80211_channel))
 602                 return EINVAL;
 603         /*
 604          * vap's may have different operating channels when HT is
 605          * in use.  When in RUN state report the vap-specific channel.
 606          * Otherwise return curchan.
 607          */
 608         if (vap->iv_state == IEEE80211_S_RUN)
 609                 c = vap->iv_bss->ni_chan;
 610         else
 611                 c = ic->ic_curchan;
 612         return copyout(c, ireq->i_data, sizeof(*c));
 613 }
 614
 615 static int
 616 getappie(const struct ieee80211_appie *aie, struct ieee80211req *ireq)
 617 {
 618         if (aie == NULL)
 619                 return EINVAL;
 620         /* NB: truncate, caller can check length */
 621         if (ireq->i_len > aie->ie_len)
 622                 ireq->i_len = aie->ie_len;
 623         return copyout(aie->ie_data, ireq->i_data, ireq->i_len);
 624 }
 625
 626 static int
 627 ieee80211_ioctl_getappie(struct ieee80211vap *vap, struct ieee80211req *ireq)
 628 {
 629         uint8_t fc0;
 630
 631         fc0 = ireq->i_val & 0xff;
 632         if ((fc0 & IEEE80211_FC0_TYPE_MASK) != IEEE80211_FC0_TYPE_MGT)
 633                 return EINVAL;
 634         /* NB: could check iv_opmode and reject but hardly worth the effort */
 635         switch (fc0 & IEEE80211_FC0_SUBTYPE_MASK) {
 636         case IEEE80211_FC0_SUBTYPE_BEACON:
 637                 return getappie(vap->iv_appie_beacon, ireq);
 638         case IEEE80211_FC0_SUBTYPE_PROBE_RESP:
 639                 return getappie(vap->iv_appie_proberesp, ireq);
 640         case IEEE80211_FC0_SUBTYPE_ASSOC_RESP:
 641                 return getappie(vap->iv_appie_assocresp, ireq);
 642         case IEEE80211_FC0_SUBTYPE_PROBE_REQ:
 643                 return getappie(vap->iv_appie_probereq, ireq);
 644         case IEEE80211_FC0_SUBTYPE_ASSOC_REQ:
 645                 return getappie(vap->iv_appie_assocreq, ireq);
 646         case IEEE80211_FC0_SUBTYPE_BEACON|IEEE80211_FC0_SUBTYPE_PROBE_RESP:
 647                 return getappie(vap->iv_appie_wpa, ireq);
 648         }
 649         return EINVAL;
 650 }
 651
 652 static __noinline int
 653 ieee80211_ioctl_getregdomain(struct ieee80211vap *vap,
 654         const struct ieee80211req *ireq)
 655 {
 656         struct ieee80211com *ic = vap->iv_ic;
 657
 658         if (ireq->i_len != sizeof(ic->ic_regdomain))
 659                 return EINVAL;
 660         return copyout(&ic->ic_regdomain, ireq->i_data,
 661             sizeof(ic->ic_regdomain));
 662 }
 663
 664 static __noinline int
 665 ieee80211_ioctl_getroam(struct ieee80211vap *vap,
 666         const struct ieee80211req *ireq)
 667 {
 668         size_t len = ireq->i_len;
 669         /* NB: accept short requests for backwards compat */
 670         if (len > sizeof(vap->iv_roamparms))
 671                 len = sizeof(vap->iv_roamparms);
 672         return copyout(vap->iv_roamparms, ireq->i_data, len);
 673 }
 674
 675 static __noinline int
 676 ieee80211_ioctl_gettxparams(struct ieee80211vap *vap,
 677         const struct ieee80211req *ireq)
 678 {
 679         size_t len = ireq->i_len;
 680         /* NB: accept short requests for backwards compat */
 681         if (len > sizeof(vap->iv_txparms))
 682                 len = sizeof(vap->iv_txparms);
 683         return copyout(vap->iv_txparms, ireq->i_data, len);
 684 }
 685
 686 static __noinline int
 687 ieee80211_ioctl_getdevcaps(struct ieee80211com *ic,
 688         const struct ieee80211req *ireq)
 689 {
 690         struct ieee80211_devcaps_req *dc;
 691         struct ieee80211req_chaninfo *ci;
 692         int maxchans, error;
 693
 694         maxchans = 1 + ((ireq->i_len - sizeof(struct ieee80211_devcaps_req)) /
 695             sizeof(struct ieee80211_channel));
 696         /* NB: require 1 so we know ic_nchans is accessible */
 697         if (maxchans < 1)
 698                 return EINVAL;
 699         /* constrain max request size, 2K channels is ~24Kbytes */
 700         if (maxchans > 2048)
 701                 maxchans = 2048;
 702         dc = (struct ieee80211_devcaps_req *)
 703             malloc(IEEE80211_DEVCAPS_SIZE(maxchans), M_TEMP, M_NOWAIT | M_ZERO);
 704         if (dc == NULL)
 705                 return ENOMEM;
 706         dc->dc_drivercaps = ic->ic_caps;
 707         dc->dc_cryptocaps = ic->ic_cryptocaps;
 708         dc->dc_htcaps = ic->ic_htcaps;
 709         ci = &dc->dc_chaninfo;
 710         ic->ic_getradiocaps(ic, maxchans, &ci->ic_nchans, ci->ic_chans);
 711         KASSERT(ci->ic_nchans <= maxchans,
 712             ("nchans %d maxchans %d", ci->ic_nchans, maxchans));
 713         ieee80211_sort_channels(ci->ic_chans, ci->ic_nchans);
 714         error = copyout(dc, ireq->i_data, IEEE80211_DEVCAPS_SPACE(dc));
 715         free(dc, M_TEMP);
 716         return error;
 717 }
 718
 719 static __noinline int
 720 ieee80211_ioctl_getstavlan(struct ieee80211vap *vap, struct ieee80211req *ireq)
 721 {
 722         struct ieee80211_node *ni;
 723         struct ieee80211req_sta_vlan vlan;
 724         int error;
 725
 726         if (ireq->i_len != sizeof(vlan))
 727                 return EINVAL;
 728         error = copyin(ireq->i_data, &vlan, sizeof(vlan));
 729         if (error != 0)
 730                 return error;
 731         if (!IEEE80211_ADDR_EQ(vlan.sv_macaddr, zerobssid)) {
 732                 ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap,
 733                     vlan.sv_macaddr);
 734                 if (ni == NULL)
 735                         return ENOENT;
 736         } else
 737                 ni = ieee80211_ref_node(vap->iv_bss);
 738         vlan.sv_vlan = ni->ni_vlan;
 739         error = copyout(&vlan, ireq->i_data, sizeof(vlan));
 740         ieee80211_free_node(ni);
 741         return error;
 742 }
 743
 744 /*
 745  * Dummy ioctl get handler so the linker set is defined.
 746  */
 747 static int
 748 dummy_ioctl_get(struct ieee80211vap *vap, struct ieee80211req *ireq)
 749 {
 750         return ENOSYS;
 751 }
 752 IEEE80211_IOCTL_GET(dummy, dummy_ioctl_get);
 753
 754 static int
 755 ieee80211_ioctl_getdefault(struct ieee80211vap *vap, struct ieee80211req *ireq)
 756 {
 757         ieee80211_ioctl_getfunc * const *get;
 758         int error;
 759
 760         SET_FOREACH(get, ieee80211_ioctl_getset) {
 761                 error = (*get)(vap, ireq);
 762                 if (error != ENOSYS)
 763                         return error;
 764         }
 765         return EINVAL;
 766 }
 767
 768 /*
 769  * When building the kernel with -O2 on the i386 architecture, gcc
 770  * seems to want to inline this function into ieee80211_ioctl()
 771  * (which is the only routine that calls it). When this happens,
 772  * ieee80211_ioctl() ends up consuming an additional 2K of stack
 773  * space. (Exactly why it needs so much is unclear.) The problem
 774  * is that it's possible for ieee80211_ioctl() to invoke other
 775  * routines (including driver init functions) which could then find
 776  * themselves perilously close to exhausting the stack.
 777  *
 778  * To avoid this, we deliberately prevent gcc from inlining this
 779  * routine. Another way to avoid this is to use less agressive
 780  * optimization when compiling this file (i.e. -O instead of -O2)
 781  * but special-casing the compilation of this one module in the
 782  * build system would be awkward.
 783  */
 784 static __noinline int
 785 ieee80211_ioctl_get80211(struct ieee80211vap *vap, u_long cmd,
 786     struct ieee80211req *ireq)
 787 {
 788 #define MS(_v, _f)      (((_v) & _f) >> _f##_S)
 789         struct ieee80211com *ic = vap->iv_ic;
 790         u_int kid, len;
 791         uint8_t tmpkey[IEEE80211_KEYBUF_SIZE];
 792         char tmpssid[IEEE80211_NWID_LEN];
 793         int error = 0;
 794
 795         switch (ireq->i_type) {
 796         case IEEE80211_IOC_SSID:
 797                 switch (vap->iv_state) {
 798                 case IEEE80211_S_INIT:
 799                 case IEEE80211_S_SCAN:
 800                         ireq->i_len = vap->iv_des_ssid[0].len;
 801                         memcpy(tmpssid, vap->iv_des_ssid[0].ssid, ireq->i_len);
 802                         break;
 803                 default:
 804                         ireq->i_len = vap->iv_bss->ni_esslen;
 805                         memcpy(tmpssid, vap->iv_bss->ni_essid, ireq->i_len);
 806                         break;
 807                 }
 808                 error = copyout(tmpssid, ireq->i_data, ireq->i_len);
 809                 break;
 810         case IEEE80211_IOC_NUMSSIDS:
 811                 ireq->i_val = 1;
 812                 break;
 813         case IEEE80211_IOC_WEP:
 814                 if ((vap->iv_flags & IEEE80211_F_PRIVACY) == 0)
 815                         ireq->i_val = IEEE80211_WEP_OFF;
 816                 else if (vap->iv_flags & IEEE80211_F_DROPUNENC)
 817                         ireq->i_val = IEEE80211_WEP_ON;
 818                 else
 819                         ireq->i_val = IEEE80211_WEP_MIXED;
 820                 break;
 821         case IEEE80211_IOC_WEPKEY:
 822                 kid = (u_int) ireq->i_val;
 823                 if (kid >= IEEE80211_WEP_NKID)
 824                         return EINVAL;
 825                 len = (u_int) vap->iv_nw_keys[kid].wk_keylen;
 826                 /* NB: only root can read WEP keys */
 827                 if (priv_check(curthread, PRIV_NET80211_GETKEY) == 0) {
 828                         bcopy(vap->iv_nw_keys[kid].wk_key, tmpkey, len);
 829                 } else {
 830                         bzero(tmpkey, len);
 831                 }
 832                 ireq->i_len = len;
 833                 error = copyout(tmpkey, ireq->i_data, len);
 834                 break;
 835         case IEEE80211_IOC_NUMWEPKEYS:
 836                 ireq->i_val = IEEE80211_WEP_NKID;
 837                 break;
 838         case IEEE80211_IOC_WEPTXKEY:
 839                 ireq->i_val = vap->iv_def_txkey;
 840                 break;
 841         case IEEE80211_IOC_AUTHMODE:
 842                 if (vap->iv_flags & IEEE80211_F_WPA)
 843                         ireq->i_val = IEEE80211_AUTH_WPA;
 844                 else
 845                         ireq->i_val = vap->iv_bss->ni_authmode;
 846                 break;
 847         case IEEE80211_IOC_CHANNEL:
 848                 ireq->i_val = ieee80211_chan2ieee(ic, ic->ic_curchan);
 849                 break;
 850         case IEEE80211_IOC_POWERSAVE:
 851                 if (vap->iv_flags & IEEE80211_F_PMGTON)
 852                         ireq->i_val = IEEE80211_POWERSAVE_ON;
 853                 else
 854                         ireq->i_val = IEEE80211_POWERSAVE_OFF;
 855                 break;
 856         case IEEE80211_IOC_POWERSAVESLEEP:
 857                 ireq->i_val = ic->ic_lintval;
 858                 break;
 859         case IEEE80211_IOC_RTSTHRESHOLD:
 860                 ireq->i_val = vap->iv_rtsthreshold;
 861                 break;
 862         case IEEE80211_IOC_PROTMODE:
 863                 ireq->i_val = ic->ic_protmode;
 864                 break;
 865         case IEEE80211_IOC_TXPOWER:
 866                 /*
 867                  * Tx power limit is the min of max regulatory
 868                  * power, any user-set limit, and the max the
 869                  * radio can do.
 870                  */
 871                 ireq->i_val = 2*ic->ic_curchan->ic_maxregpower;
 872                 if (ireq->i_val > ic->ic_txpowlimit)
 873                         ireq->i_val = ic->ic_txpowlimit;
 874                 if (ireq->i_val > ic->ic_curchan->ic_maxpower)
 875                         ireq->i_val = ic->ic_curchan->ic_maxpower;
 876                 break;
 877         case IEEE80211_IOC_WPA:
 878                 switch (vap->iv_flags & IEEE80211_F_WPA) {
 879                 case IEEE80211_F_WPA1:
 880                         ireq->i_val = 1;
 881                         break;
 882                 case IEEE80211_F_WPA2:
 883                         ireq->i_val = 2;
 884                         break;
 885                 case IEEE80211_F_WPA1 | IEEE80211_F_WPA2:
 886                         ireq->i_val = 3;
 887                         break;
 888                 default:
 889                         ireq->i_val = 0;
 890                         break;
 891                 }
 892                 break;
 893         case IEEE80211_IOC_CHANLIST:
 894                 error = ieee80211_ioctl_getchanlist(vap, ireq);
 895                 break;
 896         case IEEE80211_IOC_ROAMING:
 897                 ireq->i_val = vap->iv_roaming;
 898                 break;
 899         case IEEE80211_IOC_PRIVACY:
 900                 ireq->i_val = (vap->iv_flags & IEEE80211_F_PRIVACY) != 0;
 901                 break;
 902         case IEEE80211_IOC_DROPUNENCRYPTED:
 903                 ireq->i_val = (vap->iv_flags & IEEE80211_F_DROPUNENC) != 0;
 904                 break;
 905         case IEEE80211_IOC_COUNTERMEASURES:
 906                 ireq->i_val = (vap->iv_flags & IEEE80211_F_COUNTERM) != 0;
 907                 break;
 908         case IEEE80211_IOC_WME:
 909                 ireq->i_val = (vap->iv_flags & IEEE80211_F_WME) != 0;
 910                 break;
 911         case IEEE80211_IOC_HIDESSID:
 912                 ireq->i_val = (vap->iv_flags & IEEE80211_F_HIDESSID) != 0;
 913                 break;
 914         case IEEE80211_IOC_APBRIDGE:
 915                 ireq->i_val = (vap->iv_flags & IEEE80211_F_NOBRIDGE) == 0;
 916                 break;
 917         case IEEE80211_IOC_WPAKEY:
 918                 error = ieee80211_ioctl_getkey(vap, ireq);
 919                 break;
 920         case IEEE80211_IOC_CHANINFO:
 921                 error = ieee80211_ioctl_getchaninfo(vap, ireq);
 922                 break;
 923         case IEEE80211_IOC_BSSID:
 924                 if (ireq->i_len != IEEE80211_ADDR_LEN)
 925                         return EINVAL;
 926                 if (vap->iv_state == IEEE80211_S_RUN) {
 927                         error = copyout(vap->iv_opmode == IEEE80211_M_WDS ?
 928                             vap->iv_bss->ni_macaddr : vap->iv_bss->ni_bssid,
 929                             ireq->i_data, ireq->i_len);
 930                 } else
 931                         error = copyout(vap->iv_des_bssid, ireq->i_data,
 932                             ireq->i_len);
 933                 break;
 934         case IEEE80211_IOC_WPAIE:
 935                 error = ieee80211_ioctl_getwpaie(vap, ireq, ireq->i_type);
 936                 break;
 937         case IEEE80211_IOC_WPAIE2:
 938                 error = ieee80211_ioctl_getwpaie(vap, ireq, ireq->i_type);
 939                 break;
 940         case IEEE80211_IOC_SCAN_RESULTS:
 941                 error = ieee80211_ioctl_getscanresults(vap, ireq);
 942                 break;
 943         case IEEE80211_IOC_STA_STATS:
 944                 error = ieee80211_ioctl_getstastats(vap, ireq);
 945                 break;
 946         case IEEE80211_IOC_TXPOWMAX:
 947                 ireq->i_val = vap->iv_bss->ni_txpower;
 948                 break;
 949         case IEEE80211_IOC_STA_TXPOW:
 950                 error = ieee80211_ioctl_getstatxpow(vap, ireq);
 951                 break;
 952         case IEEE80211_IOC_STA_INFO:
 953                 error = ieee80211_ioctl_getstainfo(vap, ireq);
 954                 break;
 955         case IEEE80211_IOC_WME_CWMIN:           /* WME: CWmin */
 956         case IEEE80211_IOC_WME_CWMAX:           /* WME: CWmax */
 957         case IEEE80211_IOC_WME_AIFS:            /* WME: AIFS */
 958         case IEEE80211_IOC_WME_TXOPLIMIT:       /* WME: txops limit */
 959         case IEEE80211_IOC_WME_ACM:             /* WME: ACM (bss only) */
 960         case IEEE80211_IOC_WME_ACKPOLICY:       /* WME: ACK policy (bss only) */
 961                 error = ieee80211_ioctl_getwmeparam(vap, ireq);
 962                 break;
 963         case IEEE80211_IOC_DTIM_PERIOD:
 964                 ireq->i_val = vap->iv_dtim_period;
 965                 break;
 966         case IEEE80211_IOC_BEACON_INTERVAL:
 967                 /* NB: get from ic_bss for station mode */
 968                 ireq->i_val = vap->iv_bss->ni_intval;
 969                 break;
 970         case IEEE80211_IOC_PUREG:
 971                 ireq->i_val = (vap->iv_flags & IEEE80211_F_PUREG) != 0;
 972                 break;
 973         case IEEE80211_IOC_BGSCAN:
 974                 ireq->i_val = (vap->iv_flags & IEEE80211_F_BGSCAN) != 0;
 975                 break;
 976         case IEEE80211_IOC_BGSCAN_IDLE:
 977                 ireq->i_val = vap->iv_bgscanidle*hz/1000;       /* ms */
 978                 break;
 979         case IEEE80211_IOC_BGSCAN_INTERVAL:
 980                 ireq->i_val = vap->iv_bgscanintvl/hz;           /* seconds */
 981                 break;
 982         case IEEE80211_IOC_SCANVALID:
 983                 ireq->i_val = vap->iv_scanvalid/hz;             /* seconds */
 984                 break;
 985         case IEEE80211_IOC_FRAGTHRESHOLD:
 986                 ireq->i_val = vap->iv_fragthreshold;
 987                 break;
 988         case IEEE80211_IOC_MACCMD:
 989                 error = ieee80211_ioctl_getmaccmd(vap, ireq);
 990                 break;
 991         case IEEE80211_IOC_BURST:
 992                 ireq->i_val = (vap->iv_flags & IEEE80211_F_BURST) != 0;
 993                 break;
 994         case IEEE80211_IOC_BMISSTHRESHOLD:
 995                 ireq->i_val = vap->iv_bmissthreshold;
 996                 break;
 997         case IEEE80211_IOC_CURCHAN:
 998                 error = ieee80211_ioctl_getcurchan(vap, ireq);
 999                 break;
1000         case IEEE80211_IOC_SHORTGI:
1001                 ireq->i_val = 0;
1002                 if (vap->iv_flags_ht & IEEE80211_FHT_SHORTGI20)
1003                         ireq->i_val |= IEEE80211_HTCAP_SHORTGI20;
1004                 if (vap->iv_flags_ht & IEEE80211_FHT_SHORTGI40)
1005                         ireq->i_val |= IEEE80211_HTCAP_SHORTGI40;
1006                 break;
1007         case IEEE80211_IOC_AMPDU:
1008                 ireq->i_val = 0;
1009                 if (vap->iv_flags_ht & IEEE80211_FHT_AMPDU_TX)
1010                         ireq->i_val |= 1;
1011                 if (vap->iv_flags_ht & IEEE80211_FHT_AMPDU_RX)
1012                         ireq->i_val |= 2;
1013                 break;
1014         case IEEE80211_IOC_AMPDU_LIMIT:
1015                 if (vap->iv_opmode == IEEE80211_M_HOSTAP)
1016                         ireq->i_val = vap->iv_ampdu_rxmax;
1017                 else if (vap->iv_state == IEEE80211_S_RUN)
1018                         ireq->i_val = MS(vap->iv_bss->ni_htparam,
1019                             IEEE80211_HTCAP_MAXRXAMPDU);
1020                 else
1021                         ireq->i_val = vap->iv_ampdu_limit;
1022                 break;
1023         case IEEE80211_IOC_AMPDU_DENSITY:
1024                 if (vap->iv_opmode == IEEE80211_M_STA &&
1025                     vap->iv_state == IEEE80211_S_RUN)
1026                         ireq->i_val = MS(vap->iv_bss->ni_htparam,
1027                             IEEE80211_HTCAP_MPDUDENSITY);
1028                 else
1029                         ireq->i_val = vap->iv_ampdu_density;
1030                 break;
1031         case IEEE80211_IOC_AMSDU:
1032                 ireq->i_val = 0;
1033                 if (vap->iv_flags_ht & IEEE80211_FHT_AMSDU_TX)
1034                         ireq->i_val |= 1;
1035                 if (vap->iv_flags_ht & IEEE80211_FHT_AMSDU_RX)
1036                         ireq->i_val |= 2;
1037                 break;
1038         case IEEE80211_IOC_AMSDU_LIMIT:
1039                 ireq->i_val = vap->iv_amsdu_limit;      /* XXX truncation? */
1040                 break;
1041         case IEEE80211_IOC_PUREN:
1042                 ireq->i_val = (vap->iv_flags_ht & IEEE80211_FHT_PUREN) != 0;
1043                 break;
1044         case IEEE80211_IOC_DOTH:
1045                 ireq->i_val = (vap->iv_flags & IEEE80211_F_DOTH) != 0;
1046                 break;
1047         case IEEE80211_IOC_REGDOMAIN:
1048                 error = ieee80211_ioctl_getregdomain(vap, ireq);
1049                 break;
1050         case IEEE80211_IOC_ROAM:
1051                 error = ieee80211_ioctl_getroam(vap, ireq);
1052                 break;
1053         case IEEE80211_IOC_TXPARAMS:
1054                 error = ieee80211_ioctl_gettxparams(vap, ireq);
1055                 break;
1056         case IEEE80211_IOC_HTCOMPAT:
1057                 ireq->i_val = (vap->iv_flags_ht & IEEE80211_FHT_HTCOMPAT) != 0;
1058                 break;
1059         case IEEE80211_IOC_DWDS:
1060                 ireq->i_val = (vap->iv_flags & IEEE80211_F_DWDS) != 0;
1061                 break;
1062         case IEEE80211_IOC_INACTIVITY:
1063                 ireq->i_val = (vap->iv_flags_ext & IEEE80211_FEXT_INACT) != 0;
1064                 break;
1065         case IEEE80211_IOC_APPIE:
1066                 error = ieee80211_ioctl_getappie(vap, ireq);
1067                 break;
1068         case IEEE80211_IOC_WPS:
1069                 ireq->i_val = (vap->iv_flags_ext & IEEE80211_FEXT_WPS) != 0;
1070                 break;
1071         case IEEE80211_IOC_TSN:
1072                 ireq->i_val = (vap->iv_flags_ext & IEEE80211_FEXT_TSN) != 0;
1073                 break;
1074         case IEEE80211_IOC_DFS:
1075                 ireq->i_val = (vap->iv_flags_ext & IEEE80211_FEXT_DFS) != 0;
1076                 break;
1077         case IEEE80211_IOC_DOTD:
1078                 ireq->i_val = (vap->iv_flags_ext & IEEE80211_FEXT_DOTD) != 0;
1079                 break;
1080         case IEEE80211_IOC_DEVCAPS:
1081                 error = ieee80211_ioctl_getdevcaps(ic, ireq);
1082                 break;
1083         case IEEE80211_IOC_HTPROTMODE:
1084                 ireq->i_val = ic->ic_htprotmode;
1085                 break;
1086         case IEEE80211_IOC_HTCONF:
1087                 if (vap->iv_flags_ht & IEEE80211_FHT_HT) {
1088                         ireq->i_val = 1;
1089                         if (vap->iv_flags_ht & IEEE80211_FHT_USEHT40)
1090                                 ireq->i_val |= 2;
1091                 } else
1092                         ireq->i_val = 0;
1093                 break;
1094         case IEEE80211_IOC_STA_VLAN:
1095                 error = ieee80211_ioctl_getstavlan(vap, ireq);
1096                 break;
1097         case IEEE80211_IOC_SMPS:
1098                 if (vap->iv_opmode == IEEE80211_M_STA &&
1099                     vap->iv_state == IEEE80211_S_RUN) {
1100                         if (vap->iv_bss->ni_flags & IEEE80211_NODE_MIMO_RTS)
1101                                 ireq->i_val = IEEE80211_HTCAP_SMPS_DYNAMIC;
1102                         else if (vap->iv_bss->ni_flags & IEEE80211_NODE_MIMO_PS)
1103                                 ireq->i_val = IEEE80211_HTCAP_SMPS_ENA;
1104                         else
1105                                 ireq->i_val = IEEE80211_HTCAP_SMPS_OFF;
1106                 } else
1107                         ireq->i_val = vap->iv_htcaps & IEEE80211_HTCAP_SMPS;
1108                 break;
1109         case IEEE80211_IOC_RIFS:
1110                 if (vap->iv_opmode == IEEE80211_M_STA &&
1111                     vap->iv_state == IEEE80211_S_RUN)
1112                         ireq->i_val =
1113                             (vap->iv_bss->ni_flags & IEEE80211_NODE_RIFS) != 0;
1114                 else
1115                         ireq->i_val =
1116                             (vap->iv_flags_ht & IEEE80211_FHT_RIFS) != 0;
1117                 break;
1118         default:
1119                 error = ieee80211_ioctl_getdefault(vap, ireq);
1120                 break;
1121         }
1122         return error;
1123 #undef MS
1124 }
1125
1126 static __noinline int
1127 ieee80211_ioctl_setkey(struct ieee80211vap *vap, struct ieee80211req *ireq)
1128 {
1129         struct ieee80211req_key ik;
1130         struct ieee80211_node *ni;
1131         struct ieee80211_key *wk;
1132         uint16_t kid;
1133         int error, i;
1134
1135         if (ireq->i_len != sizeof(ik))
1136                 return EINVAL;
1137         error = copyin(ireq->i_data, &ik, sizeof(ik));
1138         if (error)
1139                 return error;
1140         /* NB: cipher support is verified by ieee80211_crypt_newkey */
1141         /* NB: this also checks ik->ik_keylen > sizeof(wk->wk_key) */
1142         if (ik.ik_keylen > sizeof(ik.ik_keydata))
1143                 return E2BIG;
1144         kid = ik.ik_keyix;
1145         if (kid == IEEE80211_KEYIX_NONE) {
1146                 /* XXX unicast keys currently must be tx/rx */
1147                 if (ik.ik_flags != (IEEE80211_KEY_XMIT | IEEE80211_KEY_RECV))
1148                         return EINVAL;
1149                 if (vap->iv_opmode == IEEE80211_M_STA) {
1150                         ni = ieee80211_ref_node(vap->iv_bss);
1151                         if (!IEEE80211_ADDR_EQ(ik.ik_macaddr, ni->ni_bssid)) {
1152                                 ieee80211_free_node(ni);
1153                                 return EADDRNOTAVAIL;
1154                         }
1155                 } else {
1156                         ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap,
1157                                 ik.ik_macaddr);
1158                         if (ni == NULL)
1159                                 return ENOENT;
1160                 }
1161                 wk = &ni->ni_ucastkey;
1162         } else {
1163                 if (kid >= IEEE80211_WEP_NKID)
1164                         return EINVAL;
1165                 wk = &vap->iv_nw_keys[kid];
1166                 /*
1167                  * Global slots start off w/o any assigned key index.
1168                  * Force one here for consistency with IEEE80211_IOC_WEPKEY.
1169                  */
1170                 if (wk->wk_keyix == IEEE80211_KEYIX_NONE)
1171                         wk->wk_keyix = kid;
1172                 ni = NULL;
1173         }
1174         error = 0;
1175         ieee80211_key_update_begin(vap);
1176         if (ieee80211_crypto_newkey(vap, ik.ik_type, ik.ik_flags, wk)) {
1177                 wk->wk_keylen = ik.ik_keylen;
1178                 /* NB: MIC presence is implied by cipher type */
1179                 if (wk->wk_keylen > IEEE80211_KEYBUF_SIZE)
1180                         wk->wk_keylen = IEEE80211_KEYBUF_SIZE;
1181                 for (i = 0; i < IEEE80211_TID_SIZE; i++)
1182                         wk->wk_keyrsc[i] = ik.ik_keyrsc;
1183                 wk->wk_keytsc = 0;                      /* new key, reset */
1184                 memset(wk->wk_key, 0, sizeof(wk->wk_key));
1185                 memcpy(wk->wk_key, ik.ik_keydata, ik.ik_keylen);
1186                 IEEE80211_ADDR_COPY(wk->wk_macaddr,
1187                     ni != NULL ?  ni->ni_macaddr : ik.ik_macaddr);
1188                 if (!ieee80211_crypto_setkey(vap, wk))
1189                         error = EIO;
1190                 else if ((ik.ik_flags & IEEE80211_KEY_DEFAULT))
1191                         vap->iv_def_txkey = kid;
1192         } else
1193                 error = ENXIO;
1194         ieee80211_key_update_end(vap);
1195         if (ni != NULL)
1196                 ieee80211_free_node(ni);
1197         return error;
1198 }
1199
1200 static __noinline int
1201 ieee80211_ioctl_delkey(struct ieee80211vap *vap, struct ieee80211req *ireq)
1202 {
1203         struct ieee80211req_del_key dk;
1204         int kid, error;
1205
1206         if (ireq->i_len != sizeof(dk))
1207                 return EINVAL;
1208         error = copyin(ireq->i_data, &dk, sizeof(dk));
1209         if (error)
1210                 return error;
1211         kid = dk.idk_keyix;
1212         /* XXX uint8_t -> uint16_t */
1213         if (dk.idk_keyix == (uint8_t) IEEE80211_KEYIX_NONE) {
1214                 struct ieee80211_node *ni;
1215
1216                 if (vap->iv_opmode == IEEE80211_M_STA) {
1217                         ni = ieee80211_ref_node(vap->iv_bss);
1218                         if (!IEEE80211_ADDR_EQ(dk.idk_macaddr, ni->ni_bssid)) {
1219                                 ieee80211_free_node(ni);
1220                                 return EADDRNOTAVAIL;
1221                         }
1222                 } else {
1223                         ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap,
1224                                 dk.idk_macaddr);
1225                         if (ni == NULL)
1226                                 return ENOENT;
1227                 }
1228                 /* XXX error return */
1229                 ieee80211_node_delucastkey(ni);
1230                 ieee80211_free_node(ni);
1231         } else {
1232                 if (kid >= IEEE80211_WEP_NKID)
1233                         return EINVAL;
1234                 /* XXX error return */
1235                 ieee80211_crypto_delkey(vap, &vap->iv_nw_keys[kid]);
1236         }
1237         return 0;
1238 }
1239
1240 struct mlmeop {
1241         struct ieee80211vap *vap;
1242         int     op;
1243         int     reason;
1244 };
1245
1246 static void
1247 mlmedebug(struct ieee80211vap *vap, const uint8_t mac[IEEE80211_ADDR_LEN],
1248         int op, int reason)
1249 {
1250 #ifdef IEEE80211_DEBUG
1251         static const struct {
1252                 int mask;
1253                 const char *opstr;
1254         } ops[] = {
1255                 { 0, "op#0" },
1256                 { IEEE80211_MSG_IOCTL | IEEE80211_MSG_STATE |
1257                   IEEE80211_MSG_ASSOC, "assoc" },
1258                 { IEEE80211_MSG_IOCTL | IEEE80211_MSG_STATE |
1259                   IEEE80211_MSG_ASSOC, "disassoc" },
1260                 { IEEE80211_MSG_IOCTL | IEEE80211_MSG_STATE |
1261                   IEEE80211_MSG_AUTH, "deauth" },
1262                 { IEEE80211_MSG_IOCTL | IEEE80211_MSG_STATE |
1263                   IEEE80211_MSG_AUTH, "authorize" },
1264                 { IEEE80211_MSG_IOCTL | IEEE80211_MSG_STATE |
1265                   IEEE80211_MSG_AUTH, "unauthorize" },
1266         };
1267
1268         if (op == IEEE80211_MLME_AUTH) {
1269                 IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_IOCTL |
1270                     IEEE80211_MSG_STATE | IEEE80211_MSG_AUTH, mac,
1271                     "station authenticate %s via MLME (reason %d)",
1272                     reason == IEEE80211_STATUS_SUCCESS ? "ACCEPT" : "REJECT",
1273                     reason);
1274         } else if (!(IEEE80211_MLME_ASSOC <= op && op <= IEEE80211_MLME_AUTH)) {
1275                 IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_ANY, mac,
1276                     "unknown MLME request %d (reason %d)", op, reason);
1277         } else if (reason == IEEE80211_STATUS_SUCCESS) {
1278                 IEEE80211_NOTE_MAC(vap, ops[op].mask, mac,
1279                     "station %s via MLME", ops[op].opstr);
1280         } else {
1281                 IEEE80211_NOTE_MAC(vap, ops[op].mask, mac,
1282                     "station %s via MLME (reason %d)", ops[op].opstr, reason);
1283         }
1284 #endif /* IEEE80211_DEBUG */
1285 }
1286
1287 static void
1288 domlme(void *arg, struct ieee80211_node *ni)
1289 {
1290         struct mlmeop *mop = arg;
1291         struct ieee80211vap *vap = ni->ni_vap;
1292
1293         if (vap != mop->vap)
1294                 return;
1295         /*
1296          * NB: if ni_associd is zero then the node is already cleaned
1297          * up and we don't need to do this (we're safely holding a
1298          * reference but should otherwise not modify it's state).
1299          */
1300         if (ni->ni_associd == 0)
1301                 return;
1302         mlmedebug(vap, ni->ni_macaddr, mop->op, mop->reason);
1303         if (mop->op == IEEE80211_MLME_DEAUTH) {
1304                 IEEE80211_SEND_MGMT(ni, IEEE80211_FC0_SUBTYPE_DEAUTH,
1305                     mop->reason);
1306         } else {
1307                 IEEE80211_SEND_MGMT(ni, IEEE80211_FC0_SUBTYPE_DISASSOC,
1308                     mop->reason);
1309         }
1310         ieee80211_node_leave(ni);
1311 }
1312
1313 static int
1314 setmlme_dropsta(struct ieee80211vap *vap,
1315         const uint8_t mac[IEEE80211_ADDR_LEN], struct mlmeop *mlmeop)
1316 {
1317         struct ieee80211com *ic = vap->iv_ic;
1318         struct ieee80211_node_table *nt = &ic->ic_sta;
1319         struct ieee80211_node *ni;
1320         int error = 0;
1321
1322         /* NB: the broadcast address means do 'em all */
1323         if (!IEEE80211_ADDR_EQ(mac, ic->ic_ifp->if_broadcastaddr)) {
1324                 IEEE80211_NODE_LOCK(nt);
1325                 ni = ieee80211_find_node_locked(nt, mac);
1326                 if (ni != NULL) {
1327                         domlme(mlmeop, ni);
1328                         ieee80211_free_node(ni);
1329                 } else
1330                         error = ENOENT;
1331                 IEEE80211_NODE_UNLOCK(nt);
1332         } else {
1333                 ieee80211_iterate_nodes(nt, domlme, mlmeop);
1334         }
1335         return error;
1336 }
1337
1338 static __noinline int
1339 setmlme_common(struct ieee80211vap *vap, int op,
1340         const uint8_t mac[IEEE80211_ADDR_LEN], int reason)
1341 {
1342         struct ieee80211com *ic = vap->iv_ic;
1343         struct ieee80211_node_table *nt = &ic->ic_sta;
1344         struct ieee80211_node *ni;
1345         struct mlmeop mlmeop;
1346         int error;
1347
1348         error = 0;
1349         switch (op) {
1350         case IEEE80211_MLME_DISASSOC:
1351         case IEEE80211_MLME_DEAUTH:
1352                 switch (vap->iv_opmode) {
1353                 case IEEE80211_M_STA:
1354                         mlmedebug(vap, vap->iv_bss->ni_macaddr, op, reason);
1355                         /* XXX not quite right */
1356                         ieee80211_new_state(vap, IEEE80211_S_INIT, reason);
1357                         break;
1358                 case IEEE80211_M_HOSTAP:
1359                         mlmeop.vap = vap;
1360                         mlmeop.op = op;
1361                         mlmeop.reason = reason;
1362                         error = setmlme_dropsta(vap, mac, &mlmeop);
1363                         break;
1364                 case IEEE80211_M_WDS:
1365                         /* XXX user app should send raw frame? */
1366                         if (op != IEEE80211_MLME_DEAUTH) {
1367                                 error = EINVAL;
1368                                 break;
1369                         }
1370 #if 0
1371                         /* XXX accept any address, simplifies user code */
1372                         if (!IEEE80211_ADDR_EQ(mac, vap->iv_bss->ni_macaddr)) {
1373                                 error = EINVAL;
1374                                 break;
1375                         }
1376 #endif
1377                         mlmedebug(vap, vap->iv_bss->ni_macaddr, op, reason);
1378                         ni = ieee80211_ref_node(vap->iv_bss);
1379                         IEEE80211_SEND_MGMT(ni,
1380                             IEEE80211_FC0_SUBTYPE_DEAUTH, reason);
1381                         ieee80211_free_node(ni);
1382                         break;
1383                 default:
1384                         error = EINVAL;
1385                         break;
1386                 }
1387                 break;
1388         case IEEE80211_MLME_AUTHORIZE:
1389         case IEEE80211_MLME_UNAUTHORIZE:
1390                 if (vap->iv_opmode != IEEE80211_M_HOSTAP &&
1391                     vap->iv_opmode != IEEE80211_M_WDS) {
1392                         error = EINVAL;
1393                         break;
1394                 }
1395                 IEEE80211_NODE_LOCK(nt);
1396                 ni = ieee80211_find_vap_node_locked(nt, vap, mac);
1397                 if (ni != NULL) {
1398                         mlmedebug(vap, mac, op, reason);
1399                         if (op == IEEE80211_MLME_AUTHORIZE)
1400                                 ieee80211_node_authorize(ni);
1401                         else
1402                                 ieee80211_node_unauthorize(ni);
1403                         ieee80211_free_node(ni);
1404                 } else
1405                         error = ENOENT;
1406                 IEEE80211_NODE_UNLOCK(nt);
1407                 break;
1408         case IEEE80211_MLME_AUTH:
1409                 if (vap->iv_opmode != IEEE80211_M_HOSTAP) {
1410                         error = EINVAL;
1411                         break;
1412                 }
1413                 IEEE80211_NODE_LOCK(nt);
1414                 ni = ieee80211_find_vap_node_locked(nt, vap, mac);
1415                 if (ni != NULL) {
1416                         mlmedebug(vap, mac, op, reason);
1417                         if (reason == IEEE80211_STATUS_SUCCESS) {
1418                                 IEEE80211_SEND_MGMT(ni,
1419                                     IEEE80211_FC0_SUBTYPE_AUTH, 2);
1420                                 /*
1421                                  * For shared key auth, just continue the
1422                                  * exchange.  Otherwise when 802.1x is not in
1423                                  * use mark the port authorized at this point
1424                                  * so traffic can flow.
1425                                  */
1426                                 if (ni->ni_authmode != IEEE80211_AUTH_8021X &&
1427                                     ni->ni_challenge == NULL)
1428                                       ieee80211_node_authorize(ni);
1429                         } else {
1430                                 vap->iv_stats.is_rx_acl++;
1431                                 ieee80211_send_error(ni, ni->ni_macaddr,
1432                                     IEEE80211_FC0_SUBTYPE_AUTH, 2|(reason<<16));
1433                                 ieee80211_node_leave(ni);
1434                         }
1435                         ieee80211_free_node(ni);
1436                 } else
1437                         error = ENOENT;
1438                 IEEE80211_NODE_UNLOCK(nt);
1439                 break;
1440         default:
1441                 error = EINVAL;
1442                 break;
1443         }
1444         return error;
1445 }
1446
1447 struct scanlookup {
1448         const uint8_t *mac;
1449         int esslen;
1450         const uint8_t *essid;
1451         const struct ieee80211_scan_entry *se;
1452 };
1453
1454 /*
1455  * Match mac address and any ssid.
1456  */
1457 static void
1458 mlmelookup(void *arg, const struct ieee80211_scan_entry *se)
1459 {
1460         struct scanlookup *look = arg;
1461
1462         if (!IEEE80211_ADDR_EQ(look->mac, se->se_macaddr))
1463                 return;
1464         if (look->esslen != 0) {
1465                 if (se->se_ssid[1] != look->esslen)
1466                         return;
1467                 if (memcmp(look->essid, se->se_ssid+2, look->esslen))
1468                         return;
1469         }
1470         look->se = se;
1471 }
1472
1473 static __noinline int
1474 setmlme_assoc(struct ieee80211vap *vap, const uint8_t mac[IEEE80211_ADDR_LEN],
1475         int ssid_len, const uint8_t ssid[IEEE80211_NWID_LEN])
1476 {
1477         struct scanlookup lookup;
1478
1479         /* XXX ibss/ahdemo */
1480         if (vap->iv_opmode != IEEE80211_M_STA)
1481                 return EINVAL;
1482
1483         /* NB: this is racey if roaming is !manual */
1484         lookup.se = NULL;
1485         lookup.mac = mac;
1486         lookup.esslen = ssid_len;
1487         lookup.essid = ssid;
1488         ieee80211_scan_iterate(vap, mlmelookup, &lookup);
1489         if (lookup.se == NULL)
1490                 return ENOENT;
1491         mlmedebug(vap, mac, IEEE80211_MLME_ASSOC, 0);
1492         if (!ieee80211_sta_join(vap, lookup.se->se_chan, lookup.se))
1493                 return EIO;             /* XXX unique but could be better */
1494         return 0;
1495 }
1496
1497 static __noinline int
1498 ieee80211_ioctl_setmlme(struct ieee80211vap *vap, struct ieee80211req *ireq)
1499 {
1500         struct ieee80211req_mlme mlme;
1501         int error;
1502
1503         if (ireq->i_len != sizeof(mlme))
1504                 return EINVAL;
1505         error = copyin(ireq->i_data, &mlme, sizeof(mlme));
1506         if (error)
1507                 return error;
1508         if  (mlme.im_op == IEEE80211_MLME_ASSOC)
1509                 return setmlme_assoc(vap, mlme.im_macaddr,
1510                     vap->iv_des_ssid[0].len, vap->iv_des_ssid[0].ssid);
1511         else
1512                 return setmlme_common(vap, mlme.im_op,
1513                     mlme.im_macaddr, mlme.im_reason);
1514 }
1515
1516 static __noinline int
1517 ieee80211_ioctl_macmac(struct ieee80211vap *vap, struct ieee80211req *ireq)
1518 {
1519         uint8_t mac[IEEE80211_ADDR_LEN];
1520         const struct ieee80211_aclator *acl = vap->iv_acl;
1521         int error;
1522
1523         if (ireq->i_len != sizeof(mac))
1524                 return EINVAL;
1525         error = copyin(ireq->i_data, mac, ireq->i_len);
1526         if (error)
1527                 return error;
1528         if (acl == NULL) {
1529                 acl = ieee80211_aclator_get("mac");
1530                 if (acl == NULL || !acl->iac_attach(vap))
1531                         return EINVAL;
1532                 vap->iv_acl = acl;
1533         }
1534         if (ireq->i_type == IEEE80211_IOC_ADDMAC)
1535                 acl->iac_add(vap, mac);
1536         else
1537                 acl->iac_remove(vap, mac);
1538         return 0;
1539 }
1540
1541 static __noinline int
1542 ieee80211_ioctl_setmaccmd(struct ieee80211vap *vap, struct ieee80211req *ireq)
1543 {
1544         const struct ieee80211_aclator *acl = vap->iv_acl;
1545
1546         switch (ireq->i_val) {
1547         case IEEE80211_MACCMD_POLICY_OPEN:
1548         case IEEE80211_MACCMD_POLICY_ALLOW:
1549         case IEEE80211_MACCMD_POLICY_DENY:
1550         case IEEE80211_MACCMD_POLICY_RADIUS:
1551                 if (acl == NULL) {
1552                         acl = ieee80211_aclator_get("mac");
1553                         if (acl == NULL || !acl->iac_attach(vap))
1554                                 return EINVAL;
1555                         vap->iv_acl = acl;
1556                 }
1557                 acl->iac_setpolicy(vap, ireq->i_val);
1558                 break;
1559         case IEEE80211_MACCMD_FLUSH:
1560                 if (acl != NULL)
1561                         acl->iac_flush(vap);
1562                 /* NB: silently ignore when not in use */
1563                 break;
1564         case IEEE80211_MACCMD_DETACH:
1565                 if (acl != NULL) {
1566                         vap->iv_acl = NULL;
1567                         acl->iac_detach(vap);
1568                 }
1569                 break;
1570         default:
1571                 if (acl == NULL)
1572                         return EINVAL;
1573                 else
1574                         return acl->iac_setioctl(vap, ireq);
1575         }
1576         return 0;
1577 }
1578
1579 static __noinline int
1580 ieee80211_ioctl_setchanlist(struct ieee80211vap *vap, struct ieee80211req *ireq)
1581 {
1582         struct ieee80211com *ic = vap->iv_ic;
1583         uint8_t *chanlist, *list;
1584         int i, nchan, maxchan, error;
1585
1586         if (ireq->i_len > sizeof(ic->ic_chan_active))
1587                 ireq->i_len = sizeof(ic->ic_chan_active);
1588         list = malloc(ireq->i_len + IEEE80211_CHAN_BYTES, M_TEMP,
1589             M_NOWAIT | M_ZERO);
1590         if (list == NULL)
1591                 return ENOMEM;
1592         error = copyin(ireq->i_data, list, ireq->i_len);
1593         if (error)
1594                 return error;
1595         nchan = 0;
1596         chanlist = list + ireq->i_len;          /* NB: zero'd already */
1597         maxchan = ireq->i_len * NBBY;
1598         for (i = 0; i < ic->ic_nchans; i++) {
1599                 const struct ieee80211_channel *c = &ic->ic_channels[i];
1600                 /*
1601                  * Calculate the intersection of the user list and the
1602                  * available channels so users can do things like specify
1603                  * 1-255 to get all available channels.
1604                  */
1605                 if (c->ic_ieee < maxchan && isset(list, c->ic_ieee)) {
1606                         setbit(chanlist, c->ic_ieee);
1607                         nchan++;
1608                 }
1609         }
1610         if (nchan == 0)
1611                 return EINVAL;
1612         if (ic->ic_bsschan != IEEE80211_CHAN_ANYC &&    /* XXX */
1613             isclr(chanlist, ic->ic_bsschan->ic_ieee))
1614                 ic->ic_bsschan = IEEE80211_CHAN_ANYC;
1615         memcpy(ic->ic_chan_active, chanlist, IEEE80211_CHAN_BYTES);
1616         ieee80211_scan_flush(vap);
1617         free(list, M_TEMP);
1618         return ENETRESET;
1619 }
1620
1621 static __noinline int
1622 ieee80211_ioctl_setstastats(struct ieee80211vap *vap, struct ieee80211req *ireq)
1623 {
1624         struct ieee80211_node *ni;
1625         uint8_t macaddr[IEEE80211_ADDR_LEN];
1626         int error;
1627
1628         /*
1629          * NB: we could copyin ieee80211req_sta_stats so apps
1630          *     could make selective changes but that's overkill;
1631          *     just clear all stats for now.
1632          */
1633         if (ireq->i_len < IEEE80211_ADDR_LEN)
1634                 return EINVAL;
1635         error = copyin(ireq->i_data, macaddr, IEEE80211_ADDR_LEN);
1636         if (error != 0)
1637                 return error;
1638         ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap, macaddr);
1639         if (ni == NULL)
1640                 return ENOENT;
1641         /* XXX require ni_vap == vap? */
1642         memset(&ni->ni_stats, 0, sizeof(ni->ni_stats));
1643         ieee80211_free_node(ni);
1644         return 0;
1645 }
1646
1647 static __noinline int
1648 ieee80211_ioctl_setstatxpow(struct ieee80211vap *vap, struct ieee80211req *ireq)
1649 {
1650         struct ieee80211_node *ni;
1651         struct ieee80211req_sta_txpow txpow;
1652         int error;
1653
1654         if (ireq->i_len != sizeof(txpow))
1655                 return EINVAL;
1656         error = copyin(ireq->i_data, &txpow, sizeof(txpow));
1657         if (error != 0)
1658                 return error;
1659         ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap, txpow.it_macaddr);
1660         if (ni == NULL)
1661                 return ENOENT;
1662         ni->ni_txpower = txpow.it_txpow;
1663         ieee80211_free_node(ni);
1664         return error;
1665 }
1666
1667 static __noinline int
1668 ieee80211_ioctl_setwmeparam(struct ieee80211vap *vap, struct ieee80211req *ireq)
1669 {
1670         struct ieee80211com *ic = vap->iv_ic;
1671         struct ieee80211_wme_state *wme = &ic->ic_wme;
1672         struct wmeParams *wmep, *chanp;
1673         int isbss, ac;
1674
1675         if ((ic->ic_caps & IEEE80211_C_WME) == 0)
1676                 return EOPNOTSUPP;
1677
1678         isbss = (ireq->i_len & IEEE80211_WMEPARAM_BSS);
1679         ac = (ireq->i_len & IEEE80211_WMEPARAM_VAL);
1680         if (ac >= WME_NUM_AC)
1681                 ac = WME_AC_BE;
1682         if (isbss) {
1683                 chanp = &wme->wme_bssChanParams.cap_wmeParams[ac];
1684                 wmep = &wme->wme_wmeBssChanParams.cap_wmeParams[ac];
1685         } else {
1686                 chanp = &wme->wme_chanParams.cap_wmeParams[ac];
1687                 wmep = &wme->wme_wmeChanParams.cap_wmeParams[ac];
1688         }
1689         switch (ireq->i_type) {
1690         case IEEE80211_IOC_WME_CWMIN:           /* WME: CWmin */
1691                 if (isbss) {
1692                         wmep->wmep_logcwmin = ireq->i_val;
1693                         if ((wme->wme_flags & WME_F_AGGRMODE) == 0)
1694                                 chanp->wmep_logcwmin = ireq->i_val;
1695                 } else {
1696                         wmep->wmep_logcwmin = chanp->wmep_logcwmin =
1697                                 ireq->i_val;
1698                 }
1699                 break;
1700         case IEEE80211_IOC_WME_CWMAX:           /* WME: CWmax */
1701                 if (isbss) {
1702                         wmep->wmep_logcwmax = ireq->i_val;
1703                         if ((wme->wme_flags & WME_F_AGGRMODE) == 0)
1704                                 chanp->wmep_logcwmax = ireq->i_val;
1705                 } else {
1706                         wmep->wmep_logcwmax = chanp->wmep_logcwmax =
1707                                 ireq->i_val;
1708                 }
1709                 break;
1710         case IEEE80211_IOC_WME_AIFS:            /* WME: AIFS */
1711                 if (isbss) {
1712                         wmep->wmep_aifsn = ireq->i_val;
1713                         if ((wme->wme_flags & WME_F_AGGRMODE) == 0)
1714                                 chanp->wmep_aifsn = ireq->i_val;
1715                 } else {
1716                         wmep->wmep_aifsn = chanp->wmep_aifsn = ireq->i_val;
1717                 }
1718                 break;
1719         case IEEE80211_IOC_WME_TXOPLIMIT:       /* WME: txops limit */
1720                 if (isbss) {
1721                         wmep->wmep_txopLimit = ireq->i_val;
1722                         if ((wme->wme_flags & WME_F_AGGRMODE) == 0)
1723                                 chanp->wmep_txopLimit = ireq->i_val;
1724                 } else {
1725                         wmep->wmep_txopLimit = chanp->wmep_txopLimit =
1726                                 ireq->i_val;
1727                 }
1728                 break;
1729         case IEEE80211_IOC_WME_ACM:             /* WME: ACM (bss only) */
1730                 wmep->wmep_acm = ireq->i_val;
1731                 if ((wme->wme_flags & WME_F_AGGRMODE) == 0)
1732                         chanp->wmep_acm = ireq->i_val;
1733                 break;
1734         case IEEE80211_IOC_WME_ACKPOLICY:       /* WME: ACK policy (!bss only)*/
1735                 wmep->wmep_noackPolicy = chanp->wmep_noackPolicy =
1736                         (ireq->i_val) == 0;
1737                 break;
1738         }
1739         ieee80211_wme_updateparams(vap);
1740         return 0;
1741 }
1742
1743 static int
1744 find11gchannel(struct ieee80211com *ic, int start, int freq)
1745 {
1746         const struct ieee80211_channel *c;
1747         int i;
1748
1749         for (i = start+1; i < ic->ic_nchans; i++) {
1750                 c = &ic->ic_channels[i];
1751                 if (c->ic_freq == freq && IEEE80211_IS_CHAN_ANYG(c))
1752                         return 1;
1753         }
1754         /* NB: should not be needed but in case things are mis-sorted */
1755         for (i = 0; i < start; i++) {
1756                 c = &ic->ic_channels[i];
1757                 if (c->ic_freq == freq && IEEE80211_IS_CHAN_ANYG(c))
1758                         return 1;
1759         }
1760         return 0;
1761 }
1762
1763 static struct ieee80211_channel *
1764 findchannel(struct ieee80211com *ic, int ieee, int mode)
1765 {
1766         static const u_int chanflags[IEEE80211_MODE_MAX] = {
1767             [IEEE80211_MODE_AUTO]       = 0,
1768             [IEEE80211_MODE_11A]        = IEEE80211_CHAN_A,
1769             [IEEE80211_MODE_11B]        = IEEE80211_CHAN_B,
1770             [IEEE80211_MODE_11G]        = IEEE80211_CHAN_G,
1771             [IEEE80211_MODE_FH]         = IEEE80211_CHAN_FHSS,
1772             [IEEE80211_MODE_TURBO_A]    = IEEE80211_CHAN_108A,
1773             [IEEE80211_MODE_TURBO_G]    = IEEE80211_CHAN_108G,
1774             [IEEE80211_MODE_STURBO_A]   = IEEE80211_CHAN_STURBO,
1775             [IEEE80211_MODE_HALF]       = IEEE80211_CHAN_HALF,
1776             [IEEE80211_MODE_QUARTER]    = IEEE80211_CHAN_QUARTER,
1777             /* NB: handled specially below */
1778             [IEEE80211_MODE_11NA]       = IEEE80211_CHAN_A,
1779             [IEEE80211_MODE_11NG]       = IEEE80211_CHAN_G,
1780         };
1781         u_int modeflags;
1782         int i;
1783
1784         modeflags = chanflags[mode];
1785         for (i = 0; i < ic->ic_nchans; i++) {
1786                 struct ieee80211_channel *c = &ic->ic_channels[i];
1787
1788                 if (c->ic_ieee != ieee)
1789                         continue;
1790                 if (mode == IEEE80211_MODE_AUTO) {
1791                         /* ignore turbo channels for autoselect */
1792                         if (IEEE80211_IS_CHAN_TURBO(c))
1793                                 continue;
1794                         /*
1795                          * XXX special-case 11b/g channels so we
1796                          *     always select the g channel if both
1797                          *     are present.
1798                          * XXX prefer HT to non-HT?
1799                          */
1800                         if (!IEEE80211_IS_CHAN_B(c) ||
1801                             !find11gchannel(ic, i, c->ic_freq))
1802                                 return c;
1803                 } else {
1804                         /* must check HT specially */
1805                         if ((mode == IEEE80211_MODE_11NA ||
1806                             mode == IEEE80211_MODE_11NG) &&
1807                             !IEEE80211_IS_CHAN_HT(c))
1808                                 continue;
1809                         if ((c->ic_flags & modeflags) == modeflags)
1810                                 return c;
1811                 }
1812         }
1813         return NULL;
1814 }
1815
1816 /*
1817  * Check the specified against any desired mode (aka netband).
1818  * This is only used (presently) when operating in hostap mode
1819  * to enforce consistency.
1820  */
1821 static int
1822 check_mode_consistency(const struct ieee80211_channel *c, int mode)
1823 {
1824         KASSERT(c != IEEE80211_CHAN_ANYC, ("oops, no channel"));
1825
1826         switch (mode) {
1827         case IEEE80211_MODE_11B:
1828                 return (IEEE80211_IS_CHAN_B(c));
1829         case IEEE80211_MODE_11G:
1830                 return (IEEE80211_IS_CHAN_ANYG(c) && !IEEE80211_IS_CHAN_HT(c));
1831         case IEEE80211_MODE_11A:
1832                 return (IEEE80211_IS_CHAN_A(c) && !IEEE80211_IS_CHAN_HT(c));
1833         case IEEE80211_MODE_STURBO_A:
1834                 return (IEEE80211_IS_CHAN_STURBO(c));
1835         case IEEE80211_MODE_11NA:
1836                 return (IEEE80211_IS_CHAN_HTA(c));
1837         case IEEE80211_MODE_11NG:
1838                 return (IEEE80211_IS_CHAN_HTG(c));
1839         }
1840         return 1;
1841
1842 }
1843
1844 /*
1845  * Common code to set the current channel.  If the device
1846  * is up and running this may result in an immediate channel
1847  * change or a kick of the state machine.
1848  */
1849 static int
1850 setcurchan(struct ieee80211vap *vap, struct ieee80211_channel *c)
1851 {
1852         struct ieee80211com *ic = vap->iv_ic;
1853         int error;
1854
1855         if (c != IEEE80211_CHAN_ANYC) {
1856                 if (IEEE80211_IS_CHAN_RADAR(c))
1857                         return EBUSY;   /* XXX better code? */
1858                 if (vap->iv_opmode == IEEE80211_M_HOSTAP) {
1859                         if (IEEE80211_IS_CHAN_NOHOSTAP(c))
1860                                 return EINVAL;
1861                         if (!check_mode_consistency(c, vap->iv_des_mode))
1862                                 return EINVAL;
1863                 } else if (vap->iv_opmode == IEEE80211_M_IBSS) {
1864                         if (IEEE80211_IS_CHAN_NOADHOC(c))
1865                                 return EINVAL;
1866                 }
1867                 if (vap->iv_state == IEEE80211_S_RUN &&
1868                     vap->iv_bss->ni_chan == c)
1869                         return 0;       /* NB: nothing to do */
1870         }
1871         vap->iv_des_chan = c;
1872
1873         error = 0;
1874         if (vap->iv_opmode == IEEE80211_M_MONITOR &&
1875             vap->iv_des_chan != IEEE80211_CHAN_ANYC) {
1876                 /*
1877                  * Monitor mode can switch directly.
1878                  */
1879                 if (IFNET_IS_UP_RUNNING(vap->iv_ifp)) {
1880                         /* XXX need state machine for other vap's to follow */
1881                         ieee80211_setcurchan(ic, vap->iv_des_chan);
1882                         vap->iv_bss->ni_chan = ic->ic_curchan;
1883                 } else
1884                         ic->ic_curchan = vap->iv_des_chan;
1885                         ic->ic_rt = ieee80211_get_ratetable(ic->ic_curchan);
1886         } else {
1887                 /*
1888                  * Need to go through the state machine in case we
1889                  * need to reassociate or the like.  The state machine
1890                  * will pickup the desired channel and avoid scanning.
1891                  */
1892                 if (IS_UP_AUTO(vap))
1893                         ieee80211_new_state(vap, IEEE80211_S_SCAN, 0);
1894                 else if (vap->iv_des_chan != IEEE80211_CHAN_ANYC) {
1895                         /*
1896                          * When not up+running and a real channel has
1897                          * been specified fix the current channel so
1898                          * there is immediate feedback; e.g. via ifconfig.
1899                          */
1900                         ic->ic_curchan = vap->iv_des_chan;
1901                         ic->ic_rt = ieee80211_get_ratetable(ic->ic_curchan);
1902                 }
1903         }
1904         return error;
1905 }
1906
1907 /*
1908  * Old api for setting the current channel; this is
1909  * deprecated because channel numbers are ambiguous.
1910  */
1911 static __noinline int
1912 ieee80211_ioctl_setchannel(struct ieee80211vap *vap,
1913         const struct ieee80211req *ireq)
1914 {
1915         struct ieee80211com *ic = vap->iv_ic;
1916         struct ieee80211_channel *c;
1917
1918         /* XXX 0xffff overflows 16-bit signed */
1919         if (ireq->i_val == 0 ||
1920             ireq->i_val == (int16_t) IEEE80211_CHAN_ANY) {
1921                 c = IEEE80211_CHAN_ANYC;
1922         } else {
1923                 struct ieee80211_channel *c2;
1924
1925                 c = findchannel(ic, ireq->i_val, vap->iv_des_mode);
1926                 if (c == NULL) {
1927                         c = findchannel(ic, ireq->i_val,
1928                                 IEEE80211_MODE_AUTO);
1929                         if (c == NULL)
1930                                 return EINVAL;
1931                 }
1932                 /*
1933                  * Fine tune channel selection based on desired mode:
1934                  *   if 11b is requested, find the 11b version of any
1935                  *      11g channel returned,
1936                  *   if static turbo, find the turbo version of any
1937                  *      11a channel return,
1938                  *   if 11na is requested, find the ht version of any
1939                  *      11a channel returned,
1940                  *   if 11ng is requested, find the ht version of any
1941                  *      11g channel returned,
1942                  *   otherwise we should be ok with what we've got.
1943                  */
1944                 switch (vap->iv_des_mode) {
1945                 case IEEE80211_MODE_11B:
1946                         if (IEEE80211_IS_CHAN_ANYG(c)) {
1947                                 c2 = findchannel(ic, ireq->i_val,
1948                                         IEEE80211_MODE_11B);
1949                                 /* NB: should not happen, =>'s 11g w/o 11b */
1950                                 if (c2 != NULL)
1951                                         c = c2;
1952                         }
1953                         break;
1954                 case IEEE80211_MODE_TURBO_A:
1955                         if (IEEE80211_IS_CHAN_A(c)) {
1956                                 c2 = findchannel(ic, ireq->i_val,
1957                                         IEEE80211_MODE_TURBO_A);
1958                                 if (c2 != NULL)
1959                                         c = c2;
1960                         }
1961                         break;
1962                 case IEEE80211_MODE_11NA:
1963                         if (IEEE80211_IS_CHAN_A(c)) {
1964                                 c2 = findchannel(ic, ireq->i_val,
1965                                         IEEE80211_MODE_11NA);
1966                                 if (c2 != NULL)
1967                                         c = c2;
1968                         }
1969                         break;
1970                 case IEEE80211_MODE_11NG:
1971                         if (IEEE80211_IS_CHAN_ANYG(c)) {
1972                                 c2 = findchannel(ic, ireq->i_val,
1973                                         IEEE80211_MODE_11NG);
1974                                 if (c2 != NULL)
1975                                         c = c2;
1976                         }
1977                         break;
1978                 default:                /* NB: no static turboG */
1979                         break;
1980                 }
1981         }
1982         return setcurchan(vap, c);
1983 }
1984
1985 /*
1986  * New/current api for setting the current channel; a complete
1987  * channel description is provide so there is no ambiguity in
1988  * identifying the channel.
1989  */
1990 static __noinline int
1991 ieee80211_ioctl_setcurchan(struct ieee80211vap *vap,
1992         const struct ieee80211req *ireq)
1993 {
1994         struct ieee80211com *ic = vap->iv_ic;
1995         struct ieee80211_channel chan, *c;
1996         int error;
1997
1998         if (ireq->i_len != sizeof(chan))
1999                 return EINVAL;
2000         error = copyin(ireq->i_data, &chan, sizeof(chan));
2001         if (error != 0)
2002                 return error;
2003         /* XXX 0xffff overflows 16-bit signed */
2004         if (chan.ic_freq == 0 || chan.ic_freq == IEEE80211_CHAN_ANY) {
2005                 c = IEEE80211_CHAN_ANYC;
2006         } else {
2007                 c = ieee80211_find_channel(ic, chan.ic_freq, chan.ic_flags);
2008                 if (c == NULL)
2009                         return EINVAL;
2010         }
2011         return setcurchan(vap, c);
2012 }
2013
2014 static __noinline int
2015 ieee80211_ioctl_setregdomain(struct ieee80211vap *vap,
2016         const struct ieee80211req *ireq)
2017 {
2018         struct ieee80211_regdomain_req *reg;
2019         int nchans, error;
2020
2021         nchans = 1 + ((ireq->i_len - sizeof(struct ieee80211_regdomain_req)) /
2022             sizeof(struct ieee80211_channel));
2023         if (!(1 <= nchans && nchans <= IEEE80211_CHAN_MAX)) {
2024                 IEEE80211_DPRINTF(vap, IEEE80211_MSG_IOCTL,
2025                     "%s: bad # chans, i_len %d nchans %d\n", __func__,
2026                     ireq->i_len, nchans);
2027                 return EINVAL;
2028         }
2029         reg = (struct ieee80211_regdomain_req *)
2030             malloc(IEEE80211_REGDOMAIN_SIZE(nchans), M_TEMP, M_NOWAIT);
2031         if (reg == NULL) {
2032                 IEEE80211_DPRINTF(vap, IEEE80211_MSG_IOCTL,
2033                     "%s: no memory, nchans %d\n", __func__, nchans);
2034                 return ENOMEM;
2035         }
2036         error = copyin(ireq->i_data, reg, IEEE80211_REGDOMAIN_SIZE(nchans));
2037         if (error == 0) {
2038                 /* NB: validate inline channel count against storage size */
2039                 if (reg->chaninfo.ic_nchans != nchans) {
2040                         IEEE80211_DPRINTF(vap, IEEE80211_MSG_IOCTL,
2041                             "%s: chan cnt mismatch, %d != %d\n", __func__,
2042                                 reg->chaninfo.ic_nchans, nchans);
2043                         error = EINVAL;
2044                 } else
2045                         error = ieee80211_setregdomain(vap, reg);
2046         }
2047         free(reg, M_TEMP);
2048
2049         return (error == 0 ? ENETRESET : error);
2050 }
2051
2052 static int
2053 ieee80211_ioctl_setroam(struct ieee80211vap *vap,
2054         const struct ieee80211req *ireq)
2055 {
2056         if (ireq->i_len != sizeof(vap->iv_roamparms))
2057                 return EINVAL;
2058         /* XXX validate params */
2059         /* XXX? ENETRESET to push to device? */
2060         return copyin(ireq->i_data, vap->iv_roamparms,
2061             sizeof(vap->iv_roamparms));
2062 }
2063
2064 static int
2065 checkrate(const struct ieee80211_rateset *rs, int rate)
2066 {
2067         int i;
2068
2069         if (rate == IEEE80211_FIXED_RATE_NONE)
2070                 return 1;
2071         for (i = 0; i < rs->rs_nrates; i++)
2072                 if ((rs->rs_rates[i] & IEEE80211_RATE_VAL) == rate)
2073                         return 1;
2074         return 0;
2075 }
2076
2077 static int
2078 checkmcs(int mcs)
2079 {
2080         if (mcs == IEEE80211_FIXED_RATE_NONE)
2081                 return 1;
2082         if ((mcs & IEEE80211_RATE_MCS) == 0)    /* MCS always have 0x80 set */
2083                 return 0;
2084         return (mcs & 0x7f) <= 15;      /* XXX could search ht rate set */
2085 }
2086
2087 static __noinline int
2088 ieee80211_ioctl_settxparams(struct ieee80211vap *vap,
2089         const struct ieee80211req *ireq)
2090 {
2091         struct ieee80211com *ic = vap->iv_ic;
2092         struct ieee80211_txparams_req parms;    /* XXX stack use? */
2093         struct ieee80211_txparam *src, *dst;
2094         const struct ieee80211_rateset *rs;
2095         int error, mode, changed, is11n, nmodes;
2096
2097         /* NB: accept short requests for backwards compat */
2098         if (ireq->i_len > sizeof(parms))
2099                 return EINVAL;
2100         error = copyin(ireq->i_data, &parms, ireq->i_len);
2101         if (error != 0)
2102                 return error;
2103         nmodes = ireq->i_len / sizeof(struct ieee80211_txparam);
2104         changed = 0;
2105         /* validate parameters and check if anything changed */
2106         for (mode = IEEE80211_MODE_11A; mode < nmodes; mode++) {
2107                 if (isclr(ic->ic_modecaps, mode))
2108                         continue;
2109                 src = &parms.params[mode];
2110                 dst = &vap->iv_txparms[mode];
2111                 rs = &ic->ic_sup_rates[mode];   /* NB: 11n maps to legacy */
2112                 is11n = (mode == IEEE80211_MODE_11NA ||
2113                          mode == IEEE80211_MODE_11NG);
2114                 if (src->ucastrate != dst->ucastrate) {
2115                         if (!checkrate(rs, src->ucastrate) &&
2116                             (!is11n || !checkmcs(src->ucastrate)))
2117                                 return EINVAL;
2118                         changed++;
2119                 }
2120                 if (src->mcastrate != dst->mcastrate) {
2121                         if (!checkrate(rs, src->mcastrate) &&
2122                             (!is11n || !checkmcs(src->mcastrate)))
2123                                 return EINVAL;
2124                         changed++;
2125                 }
2126                 if (src->mgmtrate != dst->mgmtrate) {
2127                         if (!checkrate(rs, src->mgmtrate) &&
2128                             (!is11n || !checkmcs(src->mgmtrate)))
2129                                 return EINVAL;
2130                         changed++;
2131                 }
2132                 if (src->maxretry != dst->maxretry)     /* NB: no bounds */
2133                         changed++;
2134         }
2135         if (changed) {
2136                 /*
2137                  * Copy new parameters in place and notify the
2138                  * driver so it can push state to the device.
2139                  */
2140                 for (mode = IEEE80211_MODE_11A; mode < nmodes; mode++) {
2141                         if (isset(ic->ic_modecaps, mode))
2142                                 vap->iv_txparms[mode] = parms.params[mode];
2143                 }
2144                 /* XXX could be more intelligent,
2145                    e.g. don't reset if setting not being used */
2146                 return ENETRESET;
2147         }
2148         return 0;
2149 }
2150
2151 /*
2152  * Application Information Element support.
2153  */
2154 static int
2155 setappie(struct ieee80211_appie **aie, const struct ieee80211req *ireq)
2156 {
2157         struct ieee80211_appie *app = *aie;
2158         struct ieee80211_appie *napp;
2159         int error;
2160
2161         if (ireq->i_len == 0) {         /* delete any existing ie */
2162                 if (app != NULL) {
2163                         *aie = NULL;    /* XXX racey */
2164                         free(app, M_80211_NODE_IE);
2165                 }
2166                 return 0;
2167         }
2168         if (!(2 <= ireq->i_len && ireq->i_len <= IEEE80211_MAX_APPIE))
2169                 return EINVAL;
2170         /*
2171          * Allocate a new appie structure and copy in the user data.
2172          * When done swap in the new structure.  Note that we do not
2173          * guard against users holding a ref to the old structure;
2174          * this must be handled outside this code.
2175          *
2176          * XXX bad bad bad
2177          */
2178         napp = (struct ieee80211_appie *) malloc(
2179             sizeof(struct ieee80211_appie) + ireq->i_len, M_80211_NODE_IE, M_NOWAIT);
2180         if (napp == NULL)
2181                 return ENOMEM;
2182         /* XXX holding ic lock */
2183         error = copyin(ireq->i_data, napp->ie_data, ireq->i_len);
2184         if (error) {
2185                 free(napp, M_80211_NODE_IE);
2186                 return error;
2187         }
2188         napp->ie_len = ireq->i_len;
2189         *aie = napp;
2190         if (app != NULL)
2191                 free(app, M_80211_NODE_IE);
2192         return 0;
2193 }
2194
2195 static void
2196 setwparsnie(struct ieee80211vap *vap, uint8_t *ie, int space)
2197 {
2198         /* validate data is present as best we can */
2199         if (space == 0 || 2+ie[1] > space)
2200                 return;
2201         if (ie[0] == IEEE80211_ELEMID_VENDOR)
2202                 vap->iv_wpa_ie = ie;
2203         else if (ie[0] == IEEE80211_ELEMID_RSN)
2204                 vap->iv_rsn_ie = ie;
2205 }
2206
2207 static __noinline int
2208 ieee80211_ioctl_setappie_locked(struct ieee80211vap *vap,
2209         const struct ieee80211req *ireq, int fc0)
2210 {
2211         int error;
2212
2213         IEEE80211_LOCK_ASSERT(vap->iv_ic);
2214
2215         switch (fc0 & IEEE80211_FC0_SUBTYPE_MASK) {
2216         case IEEE80211_FC0_SUBTYPE_BEACON:
2217                 if (vap->iv_opmode != IEEE80211_M_HOSTAP &&
2218                     vap->iv_opmode != IEEE80211_M_IBSS) {
2219                         error = EINVAL;
2220                         break;
2221                 }
2222                 error = setappie(&vap->iv_appie_beacon, ireq);
2223                 if (error == 0)
2224                         ieee80211_beacon_notify(vap, IEEE80211_BEACON_APPIE);
2225                 break;
2226         case IEEE80211_FC0_SUBTYPE_PROBE_RESP:
2227                 error = setappie(&vap->iv_appie_proberesp, ireq);
2228                 break;
2229         case IEEE80211_FC0_SUBTYPE_ASSOC_RESP:
2230                 if (vap->iv_opmode == IEEE80211_M_HOSTAP)
2231                         error = setappie(&vap->iv_appie_assocresp, ireq);
2232                 else
2233                         error = EINVAL;
2234                 break;
2235         case IEEE80211_FC0_SUBTYPE_PROBE_REQ:
2236                 error = setappie(&vap->iv_appie_probereq, ireq);
2237                 break;
2238         case IEEE80211_FC0_SUBTYPE_ASSOC_REQ:
2239                 if (vap->iv_opmode == IEEE80211_M_STA)
2240                         error = setappie(&vap->iv_appie_assocreq, ireq);
2241                 else
2242                         error = EINVAL;
2243                 break;
2244         case (IEEE80211_APPIE_WPA & IEEE80211_FC0_SUBTYPE_MASK):
2245                 error = setappie(&vap->iv_appie_wpa, ireq);
2246                 if (error == 0) {
2247                         /*
2248                          * Must split single blob of data into separate
2249                          * WPA and RSN ie's because they go in different
2250                          * locations in the mgt frames.
2251                          * XXX use IEEE80211_IOC_WPA2 so user code does split
2252                          */
2253                         vap->iv_wpa_ie = NULL;
2254                         vap->iv_rsn_ie = NULL;
2255                         if (vap->iv_appie_wpa != NULL) {
2256                                 struct ieee80211_appie *appie =
2257                                     vap->iv_appie_wpa;
2258                                 uint8_t *data = appie->ie_data;
2259
2260                                 /* XXX ie length validate is painful, cheat */
2261                                 setwparsnie(vap, data, appie->ie_len);
2262                                 setwparsnie(vap, data + 2 + data[1],
2263                                     appie->ie_len - (2 + data[1]));
2264                         }
2265                         if (vap->iv_opmode == IEEE80211_M_HOSTAP ||
2266                             vap->iv_opmode == IEEE80211_M_IBSS) {
2267                                 /*
2268                                  * Must rebuild beacon frame as the update
2269                                  * mechanism doesn't handle WPA/RSN ie's.
2270                                  * Could extend it but it doesn't normally
2271                                  * change; this is just to deal with hostapd
2272                                  * plumbing the ie after the interface is up.
2273                                  */
2274                                 error = ENETRESET;
2275                         }
2276                 }
2277                 break;
2278         default:
2279                 error = EINVAL;
2280                 break;
2281         }
2282         return error;
2283 }
2284
2285 static __noinline int
2286 ieee80211_ioctl_setappie(struct ieee80211vap *vap,
2287         const struct ieee80211req *ireq)
2288 {
2289         struct ieee80211com *ic = vap->iv_ic;
2290         int error;
2291         uint8_t fc0;
2292
2293         fc0 = ireq->i_val & 0xff;
2294         if ((fc0 & IEEE80211_FC0_TYPE_MASK) != IEEE80211_FC0_TYPE_MGT)
2295                 return EINVAL;
2296         /* NB: could check iv_opmode and reject but hardly worth the effort */
2297         IEEE80211_LOCK(ic);
2298         error = ieee80211_ioctl_setappie_locked(vap, ireq, fc0);
2299         IEEE80211_UNLOCK(ic);
2300         return error;
2301 }
2302
2303 static __noinline int
2304 ieee80211_ioctl_chanswitch(struct ieee80211vap *vap, struct ieee80211req *ireq)
2305 {
2306         struct ieee80211com *ic = vap->iv_ic;
2307         struct ieee80211_chanswitch_req csr;
2308         struct ieee80211_channel *c;
2309         int error;
2310
2311         if (ireq->i_len != sizeof(csr))
2312                 return EINVAL;
2313         error = copyin(ireq->i_data, &csr, sizeof(csr));
2314         if (error != 0)
2315                 return error;
2316         /* XXX adhoc mode not supported */
2317         if (vap->iv_opmode != IEEE80211_M_HOSTAP ||
2318             (vap->iv_flags & IEEE80211_F_DOTH) == 0)
2319                 return EOPNOTSUPP;
2320         c = ieee80211_find_channel(ic,
2321             csr.csa_chan.ic_freq, csr.csa_chan.ic_flags);
2322         if (c == NULL)
2323                 return ENOENT;
2324         IEEE80211_LOCK(ic);
2325         if ((ic->ic_flags & IEEE80211_F_CSAPENDING) == 0)
2326                 ieee80211_csa_startswitch(ic, c, csr.csa_mode, csr.csa_count);
2327         else if (csr.csa_count == 0)
2328                 ieee80211_csa_cancelswitch(ic);
2329         else
2330                 error = EBUSY;
2331         IEEE80211_UNLOCK(ic);
2332         return error;
2333 }
2334
2335 static __noinline int
2336 ieee80211_ioctl_scanreq(struct ieee80211vap *vap, struct ieee80211req *ireq)
2337 {
2338 #define IEEE80211_IOC_SCAN_FLAGS \
2339         (IEEE80211_IOC_SCAN_NOPICK | IEEE80211_IOC_SCAN_ACTIVE | \
2340          IEEE80211_IOC_SCAN_PICK1ST | IEEE80211_IOC_SCAN_BGSCAN | \
2341          IEEE80211_IOC_SCAN_ONCE | IEEE80211_IOC_SCAN_NOBCAST | \
2342          IEEE80211_IOC_SCAN_NOJOIN | IEEE80211_IOC_SCAN_FLUSH | \
2343          IEEE80211_IOC_SCAN_CHECK)
2344         struct ieee80211com *ic = vap->iv_ic;
2345         struct ieee80211_scan_req sr;           /* XXX off stack? */
2346         int error, i;
2347
2348         /* NB: parent must be running */
2349         if ((ic->ic_ifp->if_drv_flags & IFF_DRV_RUNNING) == 0)
2350                 return ENXIO;
2351
2352         if (ireq->i_len != sizeof(sr))
2353                 return EINVAL;
2354         error = copyin(ireq->i_data, &sr, sizeof(sr));
2355         if (error != 0)
2356                 return error;
2357         /* convert duration */
2358         if (sr.sr_duration == IEEE80211_IOC_SCAN_FOREVER)
2359                 sr.sr_duration = IEEE80211_SCAN_FOREVER;
2360         else {
2361                 if (sr.sr_duration < IEEE80211_IOC_SCAN_DURATION_MIN ||
2362                     sr.sr_duration > IEEE80211_IOC_SCAN_DURATION_MAX)
2363                         return EINVAL;
2364                 sr.sr_duration = msecs_to_ticks(sr.sr_duration);
2365                 if (sr.sr_duration < 1)
2366                         sr.sr_duration = 1;
2367         }
2368         /* convert min/max channel dwell */
2369         if (sr.sr_mindwell != 0) {
2370                 sr.sr_mindwell = msecs_to_ticks(sr.sr_mindwell);
2371                 if (sr.sr_mindwell < 1)
2372                         sr.sr_mindwell = 1;
2373         }
2374         if (sr.sr_maxdwell != 0) {
2375                 sr.sr_maxdwell = msecs_to_ticks(sr.sr_maxdwell);
2376                 if (sr.sr_maxdwell < 1)
2377                         sr.sr_maxdwell = 1;
2378         }
2379         /* NB: silently reduce ssid count to what is supported */
2380         if (sr.sr_nssid > IEEE80211_SCAN_MAX_SSID)
2381                 sr.sr_nssid = IEEE80211_SCAN_MAX_SSID;
2382         for (i = 0; i < sr.sr_nssid; i++)
2383                 if (sr.sr_ssid[i].len > IEEE80211_NWID_LEN)
2384                         return EINVAL;
2385         /* cleanse flags just in case, could reject if invalid flags */
2386         sr.sr_flags &= IEEE80211_IOC_SCAN_FLAGS;
2387         /*
2388          * Add an implicit NOPICK if the vap is not marked UP.  This
2389          * allows applications to scan without joining a bss (or picking
2390          * a channel and setting up a bss) and without forcing manual
2391          * roaming mode--you just need to mark the parent device UP.
2392          */
2393         if ((vap->iv_ifp->if_flags & IFF_UP) == 0)
2394                 sr.sr_flags |= IEEE80211_IOC_SCAN_NOPICK;
2395
2396         IEEE80211_DPRINTF(vap, IEEE80211_MSG_SCAN,
2397             "%s: flags 0x%x%s duration 0x%x mindwell %u maxdwell %u nssid %d\n",
2398             __func__, sr.sr_flags,
2399             (vap->iv_ifp->if_flags & IFF_UP) == 0 ? " (!IFF_UP)" : "",
2400             sr.sr_duration, sr.sr_mindwell, sr.sr_maxdwell, sr.sr_nssid);
2401         /*
2402          * If we are in INIT state then the driver has never had a chance
2403          * to setup hardware state to do a scan; we must use the state
2404          * machine to get us up to the SCAN state but once we reach SCAN
2405          * state we then want to use the supplied params.  Stash the
2406          * parameters in the vap and mark IEEE80211_FEXT_SCANREQ; the
2407          * state machines will recognize this and use the stashed params
2408          * to issue the scan request.
2409          *
2410          * Otherwise just invoke the scan machinery directly.
2411          */
2412         IEEE80211_LOCK(ic);
2413         if (vap->iv_state == IEEE80211_S_INIT) {
2414                 /* NB: clobbers previous settings */
2415                 vap->iv_scanreq_flags = sr.sr_flags;
2416                 vap->iv_scanreq_duration = sr.sr_duration;
2417                 vap->iv_scanreq_nssid = sr.sr_nssid;
2418                 for (i = 0; i < sr.sr_nssid; i++) {
2419                         vap->iv_scanreq_ssid[i].len = sr.sr_ssid[i].len;
2420                         memcpy(vap->iv_scanreq_ssid[i].ssid, sr.sr_ssid[i].ssid,
2421                             sr.sr_ssid[i].len);
2422                 }
2423                 vap->iv_flags_ext |= IEEE80211_FEXT_SCANREQ;
2424                 IEEE80211_UNLOCK(ic);
2425                 ieee80211_new_state(vap, IEEE80211_S_SCAN, 0);
2426         } else {
2427                 vap->iv_flags_ext &= ~IEEE80211_FEXT_SCANREQ;
2428                 IEEE80211_UNLOCK(ic);
2429                 /* XXX neeed error return codes */
2430                 if (sr.sr_flags & IEEE80211_IOC_SCAN_CHECK) {
2431                         (void) ieee80211_check_scan(vap, sr.sr_flags,
2432                             sr.sr_duration, sr.sr_mindwell, sr.sr_maxdwell,
2433                             sr.sr_nssid,
2434                             /* NB: cheat, we assume structures are compatible */
2435                             (const struct ieee80211_scan_ssid *) &sr.sr_ssid[0]);
2436                 } else {
2437                         (void) ieee80211_start_scan(vap, sr.sr_flags,
2438                             sr.sr_duration, sr.sr_mindwell, sr.sr_maxdwell,
2439                             sr.sr_nssid,
2440                             /* NB: cheat, we assume structures are compatible */
2441                             (const struct ieee80211_scan_ssid *) &sr.sr_ssid[0]);
2442                 }
2443         }
2444         return error;
2445 #undef IEEE80211_IOC_SCAN_FLAGS
2446 }
2447
2448 static __noinline int
2449 ieee80211_ioctl_setstavlan(struct ieee80211vap *vap, struct ieee80211req *ireq)
2450 {
2451         struct ieee80211_node *ni;
2452         struct ieee80211req_sta_vlan vlan;
2453         int error;
2454
2455         if (ireq->i_len != sizeof(vlan))
2456                 return EINVAL;
2457         error = copyin(ireq->i_data, &vlan, sizeof(vlan));
2458         if (error != 0)
2459                 return error;
2460         if (!IEEE80211_ADDR_EQ(vlan.sv_macaddr, zerobssid)) {
2461                 ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap,
2462                     vlan.sv_macaddr);
2463                 if (ni == NULL)
2464                         return ENOENT;
2465         } else
2466                 ni = ieee80211_ref_node(vap->iv_bss);
2467         ni->ni_vlan = vlan.sv_vlan;
2468         ieee80211_free_node(ni);
2469         return error;
2470 }
2471
2472 static int
2473 isvap11g(const struct ieee80211vap *vap)
2474 {
2475         const struct ieee80211_node *bss = vap->iv_bss;
2476         return bss->ni_chan != IEEE80211_CHAN_ANYC &&
2477             IEEE80211_IS_CHAN_ANYG(bss->ni_chan);
2478 }
2479
2480 static int
2481 isvapht(const struct ieee80211vap *vap)
2482 {
2483         const struct ieee80211_node *bss = vap->iv_bss;
2484         return bss->ni_chan != IEEE80211_CHAN_ANYC &&
2485             IEEE80211_IS_CHAN_HT(bss->ni_chan);
2486 }
2487
2488 /*
2489  * Dummy ioctl set handler so the linker set is defined.
2490  */
2491 static int
2492 dummy_ioctl_set(struct ieee80211vap *vap, struct ieee80211req *ireq)
2493 {
2494         return ENOSYS;
2495 }
2496 IEEE80211_IOCTL_SET(dummy, dummy_ioctl_set);
2497
2498 static int
2499 ieee80211_ioctl_setdefault(struct ieee80211vap *vap, struct ieee80211req *ireq)
2500 {
2501         ieee80211_ioctl_setfunc * const *set;
2502         int error;
2503
2504         SET_FOREACH(set, ieee80211_ioctl_setset) {
2505                 error = (*set)(vap, ireq);
2506                 if (error != ENOSYS)
2507                         return error;
2508         }
2509         return EINVAL;
2510 }
2511
2512 static __noinline int
2513 ieee80211_ioctl_set80211(struct ieee80211vap *vap, u_long cmd, struct ieee80211req *ireq)
2514 {
2515         struct ieee80211com *ic = vap->iv_ic;
2516         int error;
2517         const struct ieee80211_authenticator *auth;
2518         uint8_t tmpkey[IEEE80211_KEYBUF_SIZE];
2519         char tmpssid[IEEE80211_NWID_LEN];
2520         uint8_t tmpbssid[IEEE80211_ADDR_LEN];
2521         struct ieee80211_key *k;
2522         u_int kid;
2523         uint32_t flags;
2524
2525         error = 0;
2526         switch (ireq->i_type) {
2527         case IEEE80211_IOC_SSID:
2528                 if (ireq->i_val != 0 ||
2529                     ireq->i_len > IEEE80211_NWID_LEN)
2530                         return EINVAL;
2531                 error = copyin(ireq->i_data, tmpssid, ireq->i_len);
2532                 if (error)
2533                         break;
2534                 memset(vap->iv_des_ssid[0].ssid, 0, IEEE80211_NWID_LEN);
2535                 vap->iv_des_ssid[0].len = ireq->i_len;
2536                 memcpy(vap->iv_des_ssid[0].ssid, tmpssid, ireq->i_len);
2537                 vap->iv_des_nssid = (ireq->i_len > 0);
2538                 error = ENETRESET;
2539                 break;
2540         case IEEE80211_IOC_WEP:
2541                 switch (ireq->i_val) {
2542                 case IEEE80211_WEP_OFF:
2543                         vap->iv_flags &= ~IEEE80211_F_PRIVACY;
2544                         vap->iv_flags &= ~IEEE80211_F_DROPUNENC;
2545                         break;
2546                 case IEEE80211_WEP_ON:
2547                         vap->iv_flags |= IEEE80211_F_PRIVACY;
2548                         vap->iv_flags |= IEEE80211_F_DROPUNENC;
2549                         break;
2550                 case IEEE80211_WEP_MIXED:
2551                         vap->iv_flags |= IEEE80211_F_PRIVACY;
2552                         vap->iv_flags &= ~IEEE80211_F_DROPUNENC;
2553                         break;
2554                 }
2555                 error = ENETRESET;
2556                 break;
2557         case IEEE80211_IOC_WEPKEY:
2558                 kid = (u_int) ireq->i_val;
2559                 if (kid >= IEEE80211_WEP_NKID)
2560                         return EINVAL;
2561                 k = &vap->iv_nw_keys[kid];
2562                 if (ireq->i_len == 0) {
2563                         /* zero-len =>'s delete any existing key */
2564                         (void) ieee80211_crypto_delkey(vap, k);
2565                         break;
2566                 }
2567                 if (ireq->i_len > sizeof(tmpkey))
2568                         return EINVAL;
2569                 memset(tmpkey, 0, sizeof(tmpkey));
2570                 error = copyin(ireq->i_data, tmpkey, ireq->i_len);
2571                 if (error)
2572                         break;
2573                 ieee80211_key_update_begin(vap);
2574                 k->wk_keyix = kid;      /* NB: force fixed key id */
2575                 if (ieee80211_crypto_newkey(vap, IEEE80211_CIPHER_WEP,
2576                     IEEE80211_KEY_XMIT | IEEE80211_KEY_RECV, k)) {
2577                         k->wk_keylen = ireq->i_len;
2578                         memcpy(k->wk_key, tmpkey, sizeof(tmpkey));
2579                         IEEE80211_ADDR_COPY(k->wk_macaddr, vap->iv_myaddr);
2580                         if  (!ieee80211_crypto_setkey(vap, k))
2581                                 error = EINVAL;
2582                 } else
2583                         error = EINVAL;
2584                 ieee80211_key_update_end(vap);
2585                 break;
2586         case IEEE80211_IOC_WEPTXKEY:
2587                 kid = (u_int) ireq->i_val;
2588                 if (kid >= IEEE80211_WEP_NKID &&
2589                     (uint16_t) kid != IEEE80211_KEYIX_NONE)
2590                         return EINVAL;
2591                 vap->iv_def_txkey = kid;
2592                 break;
2593         case IEEE80211_IOC_AUTHMODE:
2594                 switch (ireq->i_val) {
2595                 case IEEE80211_AUTH_WPA:
2596                 case IEEE80211_AUTH_8021X:      /* 802.1x */
2597                 case IEEE80211_AUTH_OPEN:       /* open */
2598                 case IEEE80211_AUTH_SHARED:     /* shared-key */
2599                 case IEEE80211_AUTH_AUTO:       /* auto */
2600                         auth = ieee80211_authenticator_get(ireq->i_val);
2601                         if (auth == NULL)
2602                                 return EINVAL;
2603                         break;
2604                 default:
2605                         return EINVAL;
2606                 }
2607                 switch (ireq->i_val) {
2608                 case IEEE80211_AUTH_WPA:        /* WPA w/ 802.1x */
2609                         vap->iv_flags |= IEEE80211_F_PRIVACY;
2610                         ireq->i_val = IEEE80211_AUTH_8021X;
2611                         break;
2612                 case IEEE80211_AUTH_OPEN:       /* open */
2613                         vap->iv_flags &= ~(IEEE80211_F_WPA|IEEE80211_F_PRIVACY);
2614                         break;
2615                 case IEEE80211_AUTH_SHARED:     /* shared-key */
2616                 case IEEE80211_AUTH_8021X:      /* 802.1x */
2617                         vap->iv_flags &= ~IEEE80211_F_WPA;
2618                         /* both require a key so mark the PRIVACY capability */
2619                         vap->iv_flags |= IEEE80211_F_PRIVACY;
2620                         break;
2621                 case IEEE80211_AUTH_AUTO:       /* auto */
2622                         vap->iv_flags &= ~IEEE80211_F_WPA;
2623                         /* XXX PRIVACY handling? */
2624                         /* XXX what's the right way to do this? */
2625                         break;
2626                 }
2627                 /* NB: authenticator attach/detach happens on state change */
2628                 vap->iv_bss->ni_authmode = ireq->i_val;
2629                 /* XXX mixed/mode/usage? */
2630                 vap->iv_auth = auth;
2631                 error = ENETRESET;
2632                 break;
2633         case IEEE80211_IOC_CHANNEL:
2634                 error = ieee80211_ioctl_setchannel(vap, ireq);
2635                 break;
2636         case IEEE80211_IOC_POWERSAVE:
2637                 switch (ireq->i_val) {
2638                 case IEEE80211_POWERSAVE_OFF:
2639                         if (vap->iv_flags & IEEE80211_F_PMGTON) {
2640                                 ieee80211_syncflag(vap, -IEEE80211_F_PMGTON);
2641                                 error = ERESTART;
2642                         }
2643                         break;
2644                 case IEEE80211_POWERSAVE_ON:
2645                         if ((vap->iv_caps & IEEE80211_C_PMGT) == 0)
2646                                 error = EOPNOTSUPP;
2647                         else if ((vap->iv_flags & IEEE80211_F_PMGTON) == 0) {
2648                                 ieee80211_syncflag(vap, IEEE80211_F_PMGTON);
2649                                 error = ERESTART;
2650                         }
2651                         break;
2652                 default:
2653                         error = EINVAL;
2654                         break;
2655                 }
2656                 break;
2657         case IEEE80211_IOC_POWERSAVESLEEP:
2658                 if (ireq->i_val < 0)
2659                         return EINVAL;
2660                 ic->ic_lintval = ireq->i_val;
2661                 error = ERESTART;
2662                 break;
2663         case IEEE80211_IOC_RTSTHRESHOLD:
2664                 if (!(IEEE80211_RTS_MIN <= ireq->i_val &&
2665                       ireq->i_val <= IEEE80211_RTS_MAX))
2666                         return EINVAL;
2667                 vap->iv_rtsthreshold = ireq->i_val;
2668                 error = ERESTART;
2669                 break;
2670         case IEEE80211_IOC_PROTMODE:
2671                 if (ireq->i_val > IEEE80211_PROT_RTSCTS)
2672                         return EINVAL;
2673                 ic->ic_protmode = ireq->i_val;
2674                 /* NB: if not operating in 11g this can wait */
2675                 if (ic->ic_bsschan != IEEE80211_CHAN_ANYC &&
2676                     IEEE80211_IS_CHAN_ANYG(ic->ic_bsschan))
2677                         error = ERESTART;
2678                 break;
2679         case IEEE80211_IOC_TXPOWER:
2680                 if ((ic->ic_caps & IEEE80211_C_TXPMGT) == 0)
2681                         return EOPNOTSUPP;
2682                 if (!(IEEE80211_TXPOWER_MIN <= ireq->i_val &&
2683                       ireq->i_val <= IEEE80211_TXPOWER_MAX))
2684                         return EINVAL;
2685                 ic->ic_txpowlimit = ireq->i_val;
2686                 error = ERESTART;
2687                 break;
2688         case IEEE80211_IOC_ROAMING:
2689                 if (!(IEEE80211_ROAMING_DEVICE <= ireq->i_val &&
2690                     ireq->i_val <= IEEE80211_ROAMING_MANUAL))
2691                         return EINVAL;
2692                 vap->iv_roaming = ireq->i_val;
2693                 /* XXXX reset? */
2694                 break;
2695         case IEEE80211_IOC_PRIVACY:
2696                 if (ireq->i_val) {
2697                         /* XXX check for key state? */
2698                         vap->iv_flags |= IEEE80211_F_PRIVACY;
2699                 } else
2700                         vap->iv_flags &= ~IEEE80211_F_PRIVACY;
2701                 /* XXX ERESTART? */
2702                 break;
2703         case IEEE80211_IOC_DROPUNENCRYPTED:
2704                 if (ireq->i_val)
2705                         vap->iv_flags |= IEEE80211_F_DROPUNENC;
2706                 else
2707                         vap->iv_flags &= ~IEEE80211_F_DROPUNENC;
2708                 /* XXX ERESTART? */
2709                 break;
2710         case IEEE80211_IOC_WPAKEY:
2711                 error = ieee80211_ioctl_setkey(vap, ireq);
2712                 break;
2713         case IEEE80211_IOC_DELKEY:
2714                 error = ieee80211_ioctl_delkey(vap, ireq);
2715                 break;
2716         case IEEE80211_IOC_MLME:
2717                 error = ieee80211_ioctl_setmlme(vap, ireq);
2718                 break;
2719         case IEEE80211_IOC_COUNTERMEASURES:
2720                 if (ireq->i_val) {
2721                         if ((vap->iv_flags & IEEE80211_F_WPA) == 0)
2722                                 return EOPNOTSUPP;
2723                         vap->iv_flags |= IEEE80211_F_COUNTERM;
2724                 } else
2725                         vap->iv_flags &= ~IEEE80211_F_COUNTERM;
2726                 /* XXX ERESTART? */
2727                 break;
2728         case IEEE80211_IOC_WPA:
2729                 if (ireq->i_val > 3)
2730                         return EINVAL;
2731                 /* XXX verify ciphers available */
2732                 flags = vap->iv_flags & ~IEEE80211_F_WPA;
2733                 switch (ireq->i_val) {
2734                 case 1:
2735                         if (!(vap->iv_caps & IEEE80211_C_WPA1))
2736                                 return EOPNOTSUPP;
2737                         flags |= IEEE80211_F_WPA1;
2738                         break;
2739                 case 2:
2740                         if (!(vap->iv_caps & IEEE80211_C_WPA2))
2741                                 return EOPNOTSUPP;
2742                         flags |= IEEE80211_F_WPA2;
2743                         break;
2744                 case 3:
2745                         if ((vap->iv_caps & IEEE80211_C_WPA) != IEEE80211_C_WPA)
2746                                 return EOPNOTSUPP;
2747                         flags |= IEEE80211_F_WPA1 | IEEE80211_F_WPA2;
2748                         break;
2749                 default:        /*  Can't set any -> error */
2750                         return EOPNOTSUPP;
2751                 }
2752                 vap->iv_flags = flags;
2753                 error = ERESTART;       /* NB: can change beacon frame */
2754                 break;
2755         case IEEE80211_IOC_WME:
2756                 if (ireq->i_val) {
2757                         if ((vap->iv_caps & IEEE80211_C_WME) == 0)
2758                                 return EOPNOTSUPP;
2759                         ieee80211_syncflag(vap, IEEE80211_F_WME);
2760                 } else
2761                         ieee80211_syncflag(vap, -IEEE80211_F_WME);
2762                 error = ERESTART;       /* NB: can change beacon frame */
2763                 break;
2764         case IEEE80211_IOC_HIDESSID:
2765                 if (ireq->i_val)
2766                         vap->iv_flags |= IEEE80211_F_HIDESSID;
2767                 else
2768                         vap->iv_flags &= ~IEEE80211_F_HIDESSID;
2769                 error = ERESTART;               /* XXX ENETRESET? */
2770                 break;
2771         case IEEE80211_IOC_APBRIDGE:
2772                 if (ireq->i_val == 0)
2773                         vap->iv_flags |= IEEE80211_F_NOBRIDGE;
2774                 else
2775                         vap->iv_flags &= ~IEEE80211_F_NOBRIDGE;
2776                 break;
2777         case IEEE80211_IOC_BSSID:
2778                 if (ireq->i_len != sizeof(tmpbssid))
2779                         return EINVAL;
2780                 error = copyin(ireq->i_data, tmpbssid, ireq->i_len);
2781                 if (error)
2782                         break;
2783                 IEEE80211_ADDR_COPY(vap->iv_des_bssid, tmpbssid);
2784                 if (IEEE80211_ADDR_EQ(vap->iv_des_bssid, zerobssid))
2785                         vap->iv_flags &= ~IEEE80211_F_DESBSSID;
2786                 else
2787                         vap->iv_flags |= IEEE80211_F_DESBSSID;
2788                 error = ENETRESET;
2789                 break;
2790         case IEEE80211_IOC_CHANLIST:
2791                 error = ieee80211_ioctl_setchanlist(vap, ireq);
2792                 break;
2793 #define OLD_IEEE80211_IOC_SCAN_REQ      23
2794 #ifdef OLD_IEEE80211_IOC_SCAN_REQ
2795         case OLD_IEEE80211_IOC_SCAN_REQ:
2796                 IEEE80211_DPRINTF(vap, IEEE80211_MSG_SCAN,
2797                         "%s: active scan request\n", __func__);
2798                 /*
2799                  * If we are in INIT state then the driver has never
2800                  * had a chance to setup hardware state to do a scan;
2801                  * use the state machine to get us up the SCAN state.
2802                  * Otherwise just invoke the scan machinery to start
2803                  * a one-time scan.
2804                  */
2805                 if (vap->iv_state == IEEE80211_S_INIT)
2806                         ieee80211_new_state(vap, IEEE80211_S_SCAN, 0);
2807                 else
2808                         (void) ieee80211_start_scan(vap,
2809                                 IEEE80211_SCAN_ACTIVE |
2810                                 IEEE80211_SCAN_NOPICK |
2811                                 IEEE80211_SCAN_ONCE,
2812                                 IEEE80211_SCAN_FOREVER, 0, 0,
2813                                 /* XXX use ioctl params */
2814                                 vap->iv_des_nssid, vap->iv_des_ssid);
2815                 break;
2816 #endif /* OLD_IEEE80211_IOC_SCAN_REQ */
2817         case IEEE80211_IOC_SCAN_REQ:
2818                 error = ieee80211_ioctl_scanreq(vap, ireq);
2819                 break;
2820         case IEEE80211_IOC_SCAN_CANCEL:
2821                 IEEE80211_DPRINTF(vap, IEEE80211_MSG_SCAN,
2822                     "%s: cancel scan\n", __func__);
2823                 ieee80211_cancel_scan(vap);
2824                 break;
2825         case IEEE80211_IOC_HTCONF:
2826                 if (ireq->i_val & 1)
2827                         ieee80211_syncflag_ht(vap, IEEE80211_FHT_HT);
2828                 else
2829                         ieee80211_syncflag_ht(vap, -IEEE80211_FHT_HT);
2830                 if (ireq->i_val & 2)
2831                         ieee80211_syncflag_ht(vap, IEEE80211_FHT_USEHT40);
2832                 else
2833                         ieee80211_syncflag_ht(vap, -IEEE80211_FHT_USEHT40);
2834                 error = ENETRESET;
2835                 break;
2836         case IEEE80211_IOC_ADDMAC:
2837         case IEEE80211_IOC_DELMAC:
2838                 error = ieee80211_ioctl_macmac(vap, ireq);
2839                 break;
2840         case IEEE80211_IOC_MACCMD:
2841                 error = ieee80211_ioctl_setmaccmd(vap, ireq);
2842                 break;
2843         case IEEE80211_IOC_STA_STATS:
2844                 error = ieee80211_ioctl_setstastats(vap, ireq);
2845                 break;
2846         case IEEE80211_IOC_STA_TXPOW:
2847                 error = ieee80211_ioctl_setstatxpow(vap, ireq);
2848                 break;
2849         case IEEE80211_IOC_WME_CWMIN:           /* WME: CWmin */
2850         case IEEE80211_IOC_WME_CWMAX:           /* WME: CWmax */
2851         case IEEE80211_IOC_WME_AIFS:            /* WME: AIFS */
2852         case IEEE80211_IOC_WME_TXOPLIMIT:       /* WME: txops limit */
2853         case IEEE80211_IOC_WME_ACM:             /* WME: ACM (bss only) */
2854         case IEEE80211_IOC_WME_ACKPOLICY:       /* WME: ACK policy (bss only) */
2855                 error = ieee80211_ioctl_setwmeparam(vap, ireq);
2856                 break;
2857         case IEEE80211_IOC_DTIM_PERIOD:
2858                 if (vap->iv_opmode != IEEE80211_M_HOSTAP &&
2859                     vap->iv_opmode != IEEE80211_M_MBSS &&
2860                     vap->iv_opmode != IEEE80211_M_IBSS)
2861                         return EINVAL;
2862                 if (IEEE80211_DTIM_MIN <= ireq->i_val &&
2863                     ireq->i_val <= IEEE80211_DTIM_MAX) {
2864                         vap->iv_dtim_period = ireq->i_val;
2865                         error = ENETRESET;              /* requires restart */
2866                 } else
2867                         error = EINVAL;
2868                 break;
2869         case IEEE80211_IOC_BEACON_INTERVAL:
2870                 if (vap->iv_opmode != IEEE80211_M_HOSTAP &&
2871                     vap->iv_opmode != IEEE80211_M_MBSS &&
2872                     vap->iv_opmode != IEEE80211_M_IBSS)
2873                         return EINVAL;
2874                 if (IEEE80211_BINTVAL_MIN <= ireq->i_val &&
2875                     ireq->i_val <= IEEE80211_BINTVAL_MAX) {
2876                         ic->ic_bintval = ireq->i_val;
2877                         error = ENETRESET;              /* requires restart */
2878                 } else
2879                         error = EINVAL;
2880                 break;
2881         case IEEE80211_IOC_PUREG:
2882                 if (ireq->i_val)
2883                         vap->iv_flags |= IEEE80211_F_PUREG;
2884                 else
2885                         vap->iv_flags &= ~IEEE80211_F_PUREG;
2886                 /* NB: reset only if we're operating on an 11g channel */
2887                 if (isvap11g(vap))
2888                         error = ENETRESET;
2889                 break;
2890         case IEEE80211_IOC_BGSCAN:
2891                 if (ireq->i_val) {
2892                         if ((vap->iv_caps & IEEE80211_C_BGSCAN) == 0)
2893                                 return EOPNOTSUPP;
2894                         vap->iv_flags |= IEEE80211_F_BGSCAN;
2895                 } else
2896                         vap->iv_flags &= ~IEEE80211_F_BGSCAN;
2897                 break;
2898         case IEEE80211_IOC_BGSCAN_IDLE:
2899                 if (ireq->i_val >= IEEE80211_BGSCAN_IDLE_MIN)
2900                         vap->iv_bgscanidle = ireq->i_val*hz/1000;
2901                 else
2902                         error = EINVAL;
2903                 break;
2904         case IEEE80211_IOC_BGSCAN_INTERVAL:
2905                 if (ireq->i_val >= IEEE80211_BGSCAN_INTVAL_MIN)
2906                         vap->iv_bgscanintvl = ireq->i_val*hz;
2907                 else
2908                         error = EINVAL;
2909                 break;
2910         case IEEE80211_IOC_SCANVALID:
2911                 if (ireq->i_val >= IEEE80211_SCAN_VALID_MIN)
2912                         vap->iv_scanvalid = ireq->i_val*hz;
2913                 else
2914                         error = EINVAL;
2915                 break;
2916         case IEEE80211_IOC_FRAGTHRESHOLD:
2917                 if ((vap->iv_caps & IEEE80211_C_TXFRAG) == 0 &&
2918                     ireq->i_val != IEEE80211_FRAG_MAX)
2919                         return EOPNOTSUPP;
2920                 if (!(IEEE80211_FRAG_MIN <= ireq->i_val &&
2921                       ireq->i_val <= IEEE80211_FRAG_MAX))
2922                         return EINVAL;
2923                 vap->iv_fragthreshold = ireq->i_val;
2924                 error = ERESTART;
2925                 break;
2926         case IEEE80211_IOC_BURST:
2927                 if (ireq->i_val) {
2928                         if ((vap->iv_caps & IEEE80211_C_BURST) == 0)
2929                                 return EOPNOTSUPP;
2930                         ieee80211_syncflag(vap, IEEE80211_F_BURST);
2931                 } else
2932                         ieee80211_syncflag(vap, -IEEE80211_F_BURST);
2933                 error = ERESTART;
2934                 break;
2935         case IEEE80211_IOC_BMISSTHRESHOLD:
2936                 if (!(IEEE80211_HWBMISS_MIN <= ireq->i_val &&
2937                       ireq->i_val <= IEEE80211_HWBMISS_MAX))
2938                         return EINVAL;
2939                 vap->iv_bmissthreshold = ireq->i_val;
2940                 error = ERESTART;
2941                 break;
2942         case IEEE80211_IOC_CURCHAN:
2943                 error = ieee80211_ioctl_setcurchan(vap, ireq);
2944                 break;
2945         case IEEE80211_IOC_SHORTGI:
2946                 if (ireq->i_val) {
2947 #define IEEE80211_HTCAP_SHORTGI \
2948         (IEEE80211_HTCAP_SHORTGI20 | IEEE80211_HTCAP_SHORTGI40)
2949                         if (((ireq->i_val ^ vap->iv_htcaps) & IEEE80211_HTCAP_SHORTGI) != 0)
2950                                 return EINVAL;
2951                         if (ireq->i_val & IEEE80211_HTCAP_SHORTGI20)
2952                                 vap->iv_flags_ht |= IEEE80211_FHT_SHORTGI20;
2953                         if (ireq->i_val & IEEE80211_HTCAP_SHORTGI40)
2954                                 vap->iv_flags_ht |= IEEE80211_FHT_SHORTGI40;
2955 #undef IEEE80211_HTCAP_SHORTGI
2956                 } else
2957                         vap->iv_flags_ht &=
2958                             ~(IEEE80211_FHT_SHORTGI20 | IEEE80211_FHT_SHORTGI40);
2959                 error = ERESTART;
2960                 break;
2961         case IEEE80211_IOC_AMPDU:
2962                 if (ireq->i_val && (vap->iv_htcaps & IEEE80211_HTC_AMPDU) == 0)
2963                         return EINVAL;
2964                 if (ireq->i_val & 1)
2965                         vap->iv_flags_ht |= IEEE80211_FHT_AMPDU_TX;
2966                 else
2967                         vap->iv_flags_ht &= ~IEEE80211_FHT_AMPDU_TX;
2968                 if (ireq->i_val & 2)
2969                         vap->iv_flags_ht |= IEEE80211_FHT_AMPDU_RX;
2970                 else
2971                         vap->iv_flags_ht &= ~IEEE80211_FHT_AMPDU_RX;
2972                 /* NB: reset only if we're operating on an 11n channel */
2973                 if (isvapht(vap))
2974                         error = ERESTART;
2975                 break;
2976         case IEEE80211_IOC_AMPDU_LIMIT:
2977                 if (!(IEEE80211_HTCAP_MAXRXAMPDU_8K <= ireq->i_val &&
2978                       ireq->i_val <= IEEE80211_HTCAP_MAXRXAMPDU_64K))
2979                         return EINVAL;
2980                 if (vap->iv_opmode == IEEE80211_M_HOSTAP)
2981                         vap->iv_ampdu_rxmax = ireq->i_val;
2982                 else
2983                         vap->iv_ampdu_limit = ireq->i_val;
2984                 error = ERESTART;
2985                 break;
2986         case IEEE80211_IOC_AMPDU_DENSITY:
2987                 if (!(IEEE80211_HTCAP_MPDUDENSITY_NA <= ireq->i_val &&
2988                       ireq->i_val <= IEEE80211_HTCAP_MPDUDENSITY_16))
2989                         return EINVAL;
2990                 vap->iv_ampdu_density = ireq->i_val;
2991                 error = ERESTART;
2992                 break;
2993         case IEEE80211_IOC_AMSDU:
2994                 if (ireq->i_val && (vap->iv_htcaps & IEEE80211_HTC_AMSDU) == 0)
2995                         return EINVAL;
2996                 if (ireq->i_val & 1)
2997                         vap->iv_flags_ht |= IEEE80211_FHT_AMSDU_TX;
2998                 else
2999                         vap->iv_flags_ht &= ~IEEE80211_FHT_AMSDU_TX;
3000                 if (ireq->i_val & 2)
3001                         vap->iv_flags_ht |= IEEE80211_FHT_AMSDU_RX;
3002                 else
3003                         vap->iv_flags_ht &= ~IEEE80211_FHT_AMSDU_RX;
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_AMSDU_LIMIT:
3009                 /* XXX validate */
3010                 vap->iv_amsdu_limit = ireq->i_val;      /* XXX truncation? */
3011                 break;
3012         case IEEE80211_IOC_PUREN:
3013                 if (ireq->i_val) {
3014                         if ((vap->iv_flags_ht & IEEE80211_FHT_HT) == 0)
3015                                 return EINVAL;
3016                         vap->iv_flags_ht |= IEEE80211_FHT_PUREN;
3017                 } else
3018                         vap->iv_flags_ht &= ~IEEE80211_FHT_PUREN;
3019                 /* NB: reset only if we're operating on an 11n channel */
3020                 if (isvapht(vap))
3021                         error = ERESTART;
3022                 break;
3023         case IEEE80211_IOC_DOTH:
3024                 if (ireq->i_val) {
3025 #if 0
3026                         /* XXX no capability */
3027                         if ((vap->iv_caps & IEEE80211_C_DOTH) == 0)
3028                                 return EOPNOTSUPP;
3029 #endif
3030                         vap->iv_flags |= IEEE80211_F_DOTH;
3031                 } else
3032                         vap->iv_flags &= ~IEEE80211_F_DOTH;
3033                 error = ENETRESET;
3034                 break;
3035         case IEEE80211_IOC_REGDOMAIN:
3036                 error = ieee80211_ioctl_setregdomain(vap, ireq);
3037                 break;
3038         case IEEE80211_IOC_ROAM:
3039                 error = ieee80211_ioctl_setroam(vap, ireq);
3040                 break;
3041         case IEEE80211_IOC_TXPARAMS:
3042                 error = ieee80211_ioctl_settxparams(vap, ireq);
3043                 break;
3044         case IEEE80211_IOC_HTCOMPAT:
3045                 if (ireq->i_val) {
3046                         if ((vap->iv_flags_ht & IEEE80211_FHT_HT) == 0)
3047                                 return EOPNOTSUPP;
3048                         vap->iv_flags_ht |= IEEE80211_FHT_HTCOMPAT;
3049                 } else
3050                         vap->iv_flags_ht &= ~IEEE80211_FHT_HTCOMPAT;
3051                 /* NB: reset only if we're operating on an 11n channel */
3052                 if (isvapht(vap))
3053                         error = ERESTART;
3054                 break;
3055         case IEEE80211_IOC_DWDS:
3056                 if (ireq->i_val) {
3057                         /* NB: DWDS only makes sense for WDS-capable devices */
3058                         if ((ic->ic_caps & IEEE80211_C_WDS) == 0)
3059                                 return EOPNOTSUPP;
3060                         /* NB: DWDS is used only with ap+sta vaps */
3061                         if (vap->iv_opmode != IEEE80211_M_HOSTAP &&
3062                             vap->iv_opmode != IEEE80211_M_STA)
3063                                 return EINVAL;
3064                         vap->iv_flags |= IEEE80211_F_DWDS;
3065                         if (vap->iv_opmode == IEEE80211_M_STA)
3066                                 vap->iv_flags_ext |= IEEE80211_FEXT_4ADDR;
3067                 } else {
3068                         vap->iv_flags &= ~IEEE80211_F_DWDS;
3069                         if (vap->iv_opmode == IEEE80211_M_STA)
3070                                 vap->iv_flags_ext &= ~IEEE80211_FEXT_4ADDR;
3071                 }
3072                 break;
3073         case IEEE80211_IOC_INACTIVITY:
3074                 if (ireq->i_val)
3075                         vap->iv_flags_ext |= IEEE80211_FEXT_INACT;
3076                 else
3077                         vap->iv_flags_ext &= ~IEEE80211_FEXT_INACT;
3078                 break;
3079         case IEEE80211_IOC_APPIE:
3080                 error = ieee80211_ioctl_setappie(vap, ireq);
3081                 break;
3082         case IEEE80211_IOC_WPS:
3083                 if (ireq->i_val) {
3084                         if ((vap->iv_caps & IEEE80211_C_WPA) == 0)
3085                                 return EOPNOTSUPP;
3086                         vap->iv_flags_ext |= IEEE80211_FEXT_WPS;
3087                 } else
3088                         vap->iv_flags_ext &= ~IEEE80211_FEXT_WPS;
3089                 break;
3090         case IEEE80211_IOC_TSN:
3091                 if (ireq->i_val) {
3092                         if ((vap->iv_caps & IEEE80211_C_WPA) == 0)
3093                                 return EOPNOTSUPP;
3094                         vap->iv_flags_ext |= IEEE80211_FEXT_TSN;
3095                 } else
3096                         vap->iv_flags_ext &= ~IEEE80211_FEXT_TSN;
3097                 break;
3098         case IEEE80211_IOC_CHANSWITCH:
3099                 error = ieee80211_ioctl_chanswitch(vap, ireq);
3100                 break;
3101         case IEEE80211_IOC_DFS:
3102                 if (ireq->i_val) {
3103                         if ((vap->iv_caps & IEEE80211_C_DFS) == 0)
3104                                 return EOPNOTSUPP;
3105                         /* NB: DFS requires 11h support */
3106                         if ((vap->iv_flags & IEEE80211_F_DOTH) == 0)
3107                                 return EINVAL;
3108                         vap->iv_flags_ext |= IEEE80211_FEXT_DFS;
3109                 } else
3110                         vap->iv_flags_ext &= ~IEEE80211_FEXT_DFS;
3111                 break;
3112         case IEEE80211_IOC_DOTD:
3113                 if (ireq->i_val)
3114                         vap->iv_flags_ext |= IEEE80211_FEXT_DOTD;
3115                 else
3116                         vap->iv_flags_ext &= ~IEEE80211_FEXT_DOTD;
3117                 if (vap->iv_opmode == IEEE80211_M_STA)
3118                         error = ENETRESET;
3119                 break;
3120         case IEEE80211_IOC_HTPROTMODE:
3121                 if (ireq->i_val > IEEE80211_PROT_RTSCTS)
3122                         return EINVAL;
3123                 ic->ic_htprotmode = ireq->i_val ?
3124                     IEEE80211_PROT_RTSCTS : IEEE80211_PROT_NONE;
3125                 /* NB: if not operating in 11n this can wait */
3126                 if (isvapht(vap))
3127                         error = ERESTART;
3128                 break;
3129         case IEEE80211_IOC_STA_VLAN:
3130                 error = ieee80211_ioctl_setstavlan(vap, ireq);
3131                 break;
3132         case IEEE80211_IOC_SMPS:
3133                 if ((ireq->i_val &~ IEEE80211_HTCAP_SMPS) != 0 ||
3134                     ireq->i_val == 0x0008)      /* value of 2 is reserved */
3135                         return EINVAL;
3136                 if (ireq->i_val != IEEE80211_HTCAP_SMPS_OFF &&
3137                     (vap->iv_htcaps & IEEE80211_HTC_SMPS) == 0)
3138                         return EOPNOTSUPP;
3139                 vap->iv_htcaps = (vap->iv_htcaps &~ IEEE80211_HTCAP_SMPS) |
3140                         ireq->i_val;
3141                 /* NB: if not operating in 11n this can wait */
3142                 if (isvapht(vap))
3143                         error = ERESTART;
3144                 break;
3145         case IEEE80211_IOC_RIFS:
3146                 if (ireq->i_val != 0) {
3147                         if ((vap->iv_htcaps & IEEE80211_HTC_RIFS) == 0)
3148                                 return EOPNOTSUPP;
3149                         vap->iv_flags_ht |= IEEE80211_FHT_RIFS;
3150                 } else
3151                         vap->iv_flags_ht &= ~IEEE80211_FHT_RIFS;
3152                 /* NB: if not operating in 11n this can wait */
3153                 if (isvapht(vap))
3154                         error = ERESTART;
3155                 break;
3156         default:
3157                 error = ieee80211_ioctl_setdefault(vap, ireq);
3158                 break;
3159         }
3160         /*
3161          * The convention is that ENETRESET means an operation
3162          * requires a complete re-initialization of the device (e.g.
3163          * changing something that affects the association state).
3164          * ERESTART means the request may be handled with only a
3165          * reload of the hardware state.  We hand ERESTART requests
3166          * to the iv_reset callback so the driver can decide.  If
3167          * a device does not fillin iv_reset then it defaults to one
3168          * that returns ENETRESET.  Otherwise a driver may return
3169          * ENETRESET (in which case a full reset will be done) or
3170          * 0 to mean there's no need to do anything (e.g. when the
3171          * change has no effect on the driver/device).
3172          */
3173         if (error == ERESTART)
3174                 error = IFNET_IS_UP_RUNNING(vap->iv_ifp) ?
3175                     vap->iv_reset(vap, ireq->i_type) : 0;
3176         if (error == ENETRESET) {
3177                 /* XXX need to re-think AUTO handling */
3178                 if (IS_UP_AUTO(vap))
3179                         ieee80211_init(vap);
3180                 error = 0;
3181         }
3182         return error;
3183 }
3184
3185 /*
3186  * Rebuild the parent's multicast address list after an add/del
3187  * of a multicast address for a vap.  We have no way to tell
3188  * what happened above to optimize the work so we purge the entire
3189  * list and rebuild from scratch.  This is way expensive.
3190  * Note also the half-baked workaround for if_addmulti calling
3191  * back to the parent device; there's no way to insert mcast
3192  * entries quietly and/or cheaply.
3193  */
3194 static void
3195 ieee80211_ioctl_updatemulti(struct ieee80211com *ic)
3196 {
3197         struct ifnet *parent = ic->ic_ifp;
3198         struct ieee80211vap *vap;
3199         void *ioctl;
3200
3201         IEEE80211_LOCK(ic);
3202         if_purgemaddrs(parent);
3203         ioctl = parent->if_ioctl;       /* XXX WAR if_allmulti */
3204         parent->if_ioctl = NULL;
3205         TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) {
3206                 struct ifnet *ifp = vap->iv_ifp;
3207                 struct ifmultiaddr *ifma;
3208
3209                 TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link)
3210                         (void) if_addmulti(parent, ifma->ifma_addr, NULL);
3211         }
3212         parent->if_ioctl = ioctl;
3213         ieee80211_runtask(ic, &ic->ic_mcast_task);
3214         IEEE80211_UNLOCK(ic);
3215 }
3216
3217 int
3218 ieee80211_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
3219 {
3220         struct ieee80211vap *vap = ifp->if_softc;
3221         struct ieee80211com *ic = vap->iv_ic;
3222         int error = 0;
3223         struct ifreq *ifr;
3224         struct ifaddr *ifa;                     /* XXX */
3225
3226         switch (cmd) {
3227         case SIOCSIFFLAGS:
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(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 }