sys/net80211/ieee80211_ioctl.c

   1 /*-
   2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
   3  *
   4  * Copyright (c) 2001 Atsushi Onoe
   5  * Copyright (c) 2002-2009 Sam Leffler, Errno Consulting
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  18  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  19  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  20  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  21  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  22  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27  */
  28
  29 #include <sys/cdefs.h>
  30 __FBSDID("$FreeBSD$");
  31
  32 /*
  33  * IEEE 802.11 ioctl support (FreeBSD-specific)
  34  */
  35
  36 #include "opt_inet.h"
  37 #include "opt_wlan.h"
  38
  39 #include <sys/endian.h>
  40 #include <sys/param.h>
  41 #include <sys/kernel.h>
  42 #include <sys/malloc.h>
  43 #include <sys/priv.h>
  44 #include <sys/socket.h>
  45 #include <sys/sockio.h>
  46 #include <sys/systm.h>
  47
  48 #include <net/if.h>
  49 #include <net/if_var.h>
  50 #include <net/if_dl.h>
  51 #include <net/if_media.h>
  52 #include <net/ethernet.h>
  53
  54 #ifdef INET
  55 #include <netinet/in.h>
  56 #include <netinet/if_ether.h>
  57 #endif
  58
  59 #include <net80211/ieee80211_var.h>
  60 #include <net80211/ieee80211_ioctl.h>
  61 #include <net80211/ieee80211_regdomain.h>
  62 #include <net80211/ieee80211_input.h>
  63
  64 #define IS_UP_AUTO(_vap) \
  65         (IFNET_IS_UP_RUNNING((_vap)->iv_ifp) && \
  66          (_vap)->iv_roaming == IEEE80211_ROAMING_AUTO)
  67
  68 static const uint8_t zerobssid[IEEE80211_ADDR_LEN];
  69 static struct ieee80211_channel *findchannel(struct ieee80211com *,
  70                 int ieee, int mode);
  71 static int ieee80211_scanreq(struct ieee80211vap *,
  72                 struct ieee80211_scan_req *);
  73
  74 static 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 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 int
 141 ieee80211_ioctl_getchaninfo(struct ieee80211vap *vap, struct ieee80211req *ireq)
 142 {
 143         struct ieee80211com *ic = vap->iv_ic;
 144         uint32_t 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 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         wpaie = IEEE80211_MALLOC(sizeof(*wpaie), M_TEMP,
 165             IEEE80211_M_NOWAIT | IEEE80211_M_ZERO);
 166         if (wpaie == NULL)
 167                 return ENOMEM;
 168         error = copyin(ireq->i_data, wpaie->wpa_macaddr, IEEE80211_ADDR_LEN);
 169         if (error != 0)
 170                 goto bad;
 171         ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap, wpaie->wpa_macaddr);
 172         if (ni == NULL) {
 173                 error = ENOENT;
 174                 goto bad;
 175         }
 176         if (ni->ni_ies.wpa_ie != NULL) {
 177                 int ielen = ni->ni_ies.wpa_ie[1] + 2;
 178                 if (ielen > sizeof(wpaie->wpa_ie))
 179                         ielen = sizeof(wpaie->wpa_ie);
 180                 memcpy(wpaie->wpa_ie, ni->ni_ies.wpa_ie, ielen);
 181         }
 182         if (req == IEEE80211_IOC_WPAIE2) {
 183                 if (ni->ni_ies.rsn_ie != NULL) {
 184                         int ielen = ni->ni_ies.rsn_ie[1] + 2;
 185                         if (ielen > sizeof(wpaie->rsn_ie))
 186                                 ielen = sizeof(wpaie->rsn_ie);
 187                         memcpy(wpaie->rsn_ie, ni->ni_ies.rsn_ie, ielen);
 188                 }
 189                 if (ireq->i_len > sizeof(struct ieee80211req_wpaie2))
 190                         ireq->i_len = sizeof(struct ieee80211req_wpaie2);
 191         } else {
 192                 /* compatibility op, may overwrite wpa ie */
 193                 /* XXX check ic_flags? */
 194                 if (ni->ni_ies.rsn_ie != NULL) {
 195                         int ielen = ni->ni_ies.rsn_ie[1] + 2;
 196                         if (ielen > sizeof(wpaie->wpa_ie))
 197                                 ielen = sizeof(wpaie->wpa_ie);
 198                         memcpy(wpaie->wpa_ie, ni->ni_ies.rsn_ie, ielen);
 199                 }
 200                 if (ireq->i_len > sizeof(struct ieee80211req_wpaie))
 201                         ireq->i_len = sizeof(struct ieee80211req_wpaie);
 202         }
 203         ieee80211_free_node(ni);
 204         error = copyout(wpaie, ireq->i_data, ireq->i_len);
 205 bad:
 206         IEEE80211_FREE(wpaie, M_TEMP);
 207         return error;
 208 }
 209
 210 static int
 211 ieee80211_ioctl_getstastats(struct ieee80211vap *vap, struct ieee80211req *ireq)
 212 {
 213         struct ieee80211_node *ni;
 214         uint8_t macaddr[IEEE80211_ADDR_LEN];
 215         const size_t off = __offsetof(struct ieee80211req_sta_stats, is_stats);
 216         int error;
 217
 218         if (ireq->i_len < off)
 219                 return EINVAL;
 220         error = copyin(ireq->i_data, macaddr, IEEE80211_ADDR_LEN);
 221         if (error != 0)
 222                 return error;
 223         ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap, macaddr);
 224         if (ni == NULL)
 225                 return ENOENT;
 226         if (ireq->i_len > sizeof(struct ieee80211req_sta_stats))
 227                 ireq->i_len = sizeof(struct ieee80211req_sta_stats);
 228         /* NB: copy out only the statistics */
 229         error = copyout(&ni->ni_stats, (uint8_t *) ireq->i_data + off,
 230                         ireq->i_len - off);
 231         ieee80211_free_node(ni);
 232         return error;
 233 }
 234
 235 struct scanreq {
 236         struct ieee80211req_scan_result *sr;
 237         size_t space;
 238 };
 239
 240 static size_t
 241 scan_space(const struct ieee80211_scan_entry *se, int *ielen)
 242 {
 243         size_t len;
 244
 245         *ielen = se->se_ies.len;
 246         /*
 247          * NB: ie's can be no more than 255 bytes and the max 802.11
 248          * packet is <3Kbytes so we are sure this doesn't overflow
 249          * 16-bits; if this is a concern we can drop the ie's.
 250          */
 251         len = sizeof(struct ieee80211req_scan_result) + se->se_ssid[1] +
 252             se->se_meshid[1] + *ielen;
 253         return roundup(len, sizeof(uint32_t));
 254 }
 255
 256 static void
 257 get_scan_space(void *arg, const struct ieee80211_scan_entry *se)
 258 {
 259         struct scanreq *req = arg;
 260         int ielen;
 261
 262         req->space += scan_space(se, &ielen);
 263 }
 264
 265 static void
 266 get_scan_result(void *arg, const struct ieee80211_scan_entry *se)
 267 {
 268         struct scanreq *req = arg;
 269         struct ieee80211req_scan_result *sr;
 270         int ielen, len, nr, nxr;
 271         uint8_t *cp;
 272
 273         len = scan_space(se, &ielen);
 274         if (len > req->space)
 275                 return;
 276
 277         sr = req->sr;
 278         KASSERT(len <= 65535 && ielen <= 65535,
 279             ("len %u ssid %u ie %u", len, se->se_ssid[1], ielen));
 280         sr->isr_len = len;
 281         sr->isr_ie_off = sizeof(struct ieee80211req_scan_result);
 282         sr->isr_ie_len = ielen;
 283         sr->isr_freq = se->se_chan->ic_freq;
 284         sr->isr_flags = se->se_chan->ic_flags;
 285         sr->isr_rssi = se->se_rssi;
 286         sr->isr_noise = se->se_noise;
 287         sr->isr_intval = se->se_intval;
 288         sr->isr_capinfo = se->se_capinfo;
 289         sr->isr_erp = se->se_erp;
 290         IEEE80211_ADDR_COPY(sr->isr_bssid, se->se_bssid);
 291         nr = min(se->se_rates[1], IEEE80211_RATE_MAXSIZE);
 292         memcpy(sr->isr_rates, se->se_rates+2, nr);
 293         nxr = min(se->se_xrates[1], IEEE80211_RATE_MAXSIZE - nr);
 294         memcpy(sr->isr_rates+nr, se->se_xrates+2, nxr);
 295         sr->isr_nrates = nr + nxr;
 296
 297         /* copy SSID */
 298         sr->isr_ssid_len = se->se_ssid[1];
 299         cp = ((uint8_t *)sr) + sr->isr_ie_off;
 300         memcpy(cp, se->se_ssid+2, sr->isr_ssid_len);
 301
 302         /* copy mesh id */
 303         cp += sr->isr_ssid_len;
 304         sr->isr_meshid_len = se->se_meshid[1];
 305         memcpy(cp, se->se_meshid+2, sr->isr_meshid_len);
 306         cp += sr->isr_meshid_len;
 307
 308         if (ielen)
 309                 memcpy(cp, se->se_ies.data, ielen);
 310
 311         req->space -= len;
 312         req->sr = (struct ieee80211req_scan_result *)(((uint8_t *)sr) + len);
 313 }
 314
 315 static int
 316 ieee80211_ioctl_getscanresults(struct ieee80211vap *vap,
 317         struct ieee80211req *ireq)
 318 {
 319         struct scanreq req;
 320         int error;
 321
 322         if (ireq->i_len < sizeof(struct scanreq))
 323                 return EFAULT;
 324
 325         error = 0;
 326         req.space = 0;
 327         ieee80211_scan_iterate(vap, get_scan_space, &req);
 328         if (req.space > ireq->i_len)
 329                 req.space = ireq->i_len;
 330         if (req.space > 0) {
 331                 uint32_t space;
 332                 void *p;
 333
 334                 space = req.space;
 335                 /* XXX M_WAITOK after driver lock released */
 336                 p = IEEE80211_MALLOC(space, M_TEMP,
 337                     IEEE80211_M_NOWAIT | IEEE80211_M_ZERO);
 338                 if (p == NULL)
 339                         return ENOMEM;
 340                 req.sr = p;
 341                 ieee80211_scan_iterate(vap, get_scan_result, &req);
 342                 ireq->i_len = space - req.space;
 343                 error = copyout(p, ireq->i_data, ireq->i_len);
 344                 IEEE80211_FREE(p, M_TEMP);
 345         } else
 346                 ireq->i_len = 0;
 347
 348         return error;
 349 }
 350
 351 struct stainforeq {
 352         struct ieee80211req_sta_info *si;
 353         size_t  space;
 354 };
 355
 356 static size_t
 357 sta_space(const struct ieee80211_node *ni, size_t *ielen)
 358 {
 359         *ielen = ni->ni_ies.len;
 360         return roundup(sizeof(struct ieee80211req_sta_info) + *ielen,
 361                       sizeof(uint32_t));
 362 }
 363
 364 static void
 365 get_sta_space(void *arg, struct ieee80211_node *ni)
 366 {
 367         struct stainforeq *req = arg;
 368         size_t ielen;
 369
 370         if (ni->ni_vap->iv_opmode == IEEE80211_M_HOSTAP &&
 371             ni->ni_associd == 0)        /* only associated stations */
 372                 return;
 373         req->space += sta_space(ni, &ielen);
 374 }
 375
 376 static void
 377 get_sta_info(void *arg, struct ieee80211_node *ni)
 378 {
 379         struct stainforeq *req = arg;
 380         struct ieee80211vap *vap = ni->ni_vap;
 381         struct ieee80211req_sta_info *si;
 382         size_t ielen, len;
 383         uint8_t *cp;
 384
 385         if (vap->iv_opmode == IEEE80211_M_HOSTAP &&
 386             ni->ni_associd == 0)        /* only associated stations */
 387                 return;
 388         if (ni->ni_chan == IEEE80211_CHAN_ANYC) /* XXX bogus entry */
 389                 return;
 390         len = sta_space(ni, &ielen);
 391         if (len > req->space)
 392                 return;
 393         si = req->si;
 394         si->isi_len = len;
 395         si->isi_ie_off = sizeof(struct ieee80211req_sta_info);
 396         si->isi_ie_len = ielen;
 397         si->isi_freq = ni->ni_chan->ic_freq;
 398         si->isi_flags = ni->ni_chan->ic_flags;
 399         si->isi_state = ni->ni_flags;
 400         si->isi_authmode = ni->ni_authmode;
 401         vap->iv_ic->ic_node_getsignal(ni, &si->isi_rssi, &si->isi_noise);
 402         vap->iv_ic->ic_node_getmimoinfo(ni, &si->isi_mimo);
 403         si->isi_capinfo = ni->ni_capinfo;
 404         si->isi_erp = ni->ni_erp;
 405         IEEE80211_ADDR_COPY(si->isi_macaddr, ni->ni_macaddr);
 406         si->isi_nrates = ni->ni_rates.rs_nrates;
 407         if (si->isi_nrates > 15)
 408                 si->isi_nrates = 15;
 409         memcpy(si->isi_rates, ni->ni_rates.rs_rates, si->isi_nrates);
 410         si->isi_txrate = ni->ni_txrate;
 411         if (si->isi_txrate & IEEE80211_RATE_MCS) {
 412                 const struct ieee80211_mcs_rates *mcs =
 413                     &ieee80211_htrates[ni->ni_txrate &~ IEEE80211_RATE_MCS];
 414                 if (IEEE80211_IS_CHAN_HT40(ni->ni_chan)) {
 415                         if (ni->ni_flags & IEEE80211_NODE_SGI40)
 416                                 si->isi_txmbps = mcs->ht40_rate_800ns;
 417                         else
 418                                 si->isi_txmbps = mcs->ht40_rate_400ns;
 419                 } else {
 420                         if (ni->ni_flags & IEEE80211_NODE_SGI20)
 421                                 si->isi_txmbps = mcs->ht20_rate_800ns;
 422                         else
 423                                 si->isi_txmbps = mcs->ht20_rate_400ns;
 424                 }
 425         } else
 426                 si->isi_txmbps = si->isi_txrate;
 427         si->isi_associd = ni->ni_associd;
 428         si->isi_txpower = ni->ni_txpower;
 429         si->isi_vlan = ni->ni_vlan;
 430         if (ni->ni_flags & IEEE80211_NODE_QOS) {
 431                 memcpy(si->isi_txseqs, ni->ni_txseqs, sizeof(ni->ni_txseqs));
 432                 memcpy(si->isi_rxseqs, ni->ni_rxseqs, sizeof(ni->ni_rxseqs));
 433         } else {
 434                 si->isi_txseqs[0] = ni->ni_txseqs[IEEE80211_NONQOS_TID];
 435                 si->isi_rxseqs[0] = ni->ni_rxseqs[IEEE80211_NONQOS_TID];
 436         }
 437         /* NB: leave all cases in case we relax ni_associd == 0 check */
 438         if (ieee80211_node_is_authorized(ni))
 439                 si->isi_inact = vap->iv_inact_run;
 440         else if (ni->ni_associd != 0 ||
 441             (vap->iv_opmode == IEEE80211_M_WDS &&
 442              (vap->iv_flags_ext & IEEE80211_FEXT_WDSLEGACY)))
 443                 si->isi_inact = vap->iv_inact_auth;
 444         else
 445                 si->isi_inact = vap->iv_inact_init;
 446         si->isi_inact = (si->isi_inact - ni->ni_inact) * IEEE80211_INACT_WAIT;
 447         si->isi_localid = ni->ni_mllid;
 448         si->isi_peerid = ni->ni_mlpid;
 449         si->isi_peerstate = ni->ni_mlstate;
 450
 451         if (ielen) {
 452                 cp = ((uint8_t *)si) + si->isi_ie_off;
 453                 memcpy(cp, ni->ni_ies.data, ielen);
 454         }
 455
 456         req->si = (struct ieee80211req_sta_info *)(((uint8_t *)si) + len);
 457         req->space -= len;
 458 }
 459
 460 static int
 461 getstainfo_common(struct ieee80211vap *vap, struct ieee80211req *ireq,
 462         struct ieee80211_node *ni, size_t off)
 463 {
 464         struct ieee80211com *ic = vap->iv_ic;
 465         struct stainforeq req;
 466         size_t space;
 467         void *p;
 468         int error;
 469
 470         error = 0;
 471         req.space = 0;
 472         if (ni == NULL) {
 473                 ieee80211_iterate_nodes_vap(&ic->ic_sta, vap, get_sta_space,
 474                     &req);
 475         } else
 476                 get_sta_space(&req, ni);
 477         if (req.space > ireq->i_len)
 478                 req.space = ireq->i_len;
 479         if (req.space > 0) {
 480                 space = req.space;
 481                 /* XXX M_WAITOK after driver lock released */
 482                 p = IEEE80211_MALLOC(space, M_TEMP,
 483                     IEEE80211_M_NOWAIT | IEEE80211_M_ZERO);
 484                 if (p == NULL) {
 485                         error = ENOMEM;
 486                         goto bad;
 487                 }
 488                 req.si = p;
 489                 if (ni == NULL) {
 490                         ieee80211_iterate_nodes_vap(&ic->ic_sta, vap,
 491                             get_sta_info, &req);
 492                 } else
 493                         get_sta_info(&req, ni);
 494                 ireq->i_len = space - req.space;
 495                 error = copyout(p, (uint8_t *) ireq->i_data+off, ireq->i_len);
 496                 IEEE80211_FREE(p, M_TEMP);
 497         } else
 498                 ireq->i_len = 0;
 499 bad:
 500         if (ni != NULL)
 501                 ieee80211_free_node(ni);
 502         return error;
 503 }
 504
 505 static int
 506 ieee80211_ioctl_getstainfo(struct ieee80211vap *vap, struct ieee80211req *ireq)
 507 {
 508         uint8_t macaddr[IEEE80211_ADDR_LEN];
 509         const size_t off = __offsetof(struct ieee80211req_sta_req, info);
 510         struct ieee80211_node *ni;
 511         int error;
 512
 513         if (ireq->i_len < sizeof(struct ieee80211req_sta_req))
 514                 return EFAULT;
 515         error = copyin(ireq->i_data, macaddr, IEEE80211_ADDR_LEN);
 516         if (error != 0)
 517                 return error;
 518         if (IEEE80211_ADDR_EQ(macaddr, vap->iv_ifp->if_broadcastaddr)) {
 519                 ni = NULL;
 520         } else {
 521                 ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap, macaddr);
 522                 if (ni == NULL)
 523                         return ENOENT;
 524         }
 525         return getstainfo_common(vap, ireq, ni, off);
 526 }
 527
 528 static int
 529 ieee80211_ioctl_getstatxpow(struct ieee80211vap *vap, struct ieee80211req *ireq)
 530 {
 531         struct ieee80211_node *ni;
 532         struct ieee80211req_sta_txpow txpow;
 533         int error;
 534
 535         if (ireq->i_len != sizeof(txpow))
 536                 return EINVAL;
 537         error = copyin(ireq->i_data, &txpow, sizeof(txpow));
 538         if (error != 0)
 539                 return error;
 540         ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap, txpow.it_macaddr);
 541         if (ni == NULL)
 542                 return ENOENT;
 543         txpow.it_txpow = ni->ni_txpower;
 544         error = copyout(&txpow, ireq->i_data, sizeof(txpow));
 545         ieee80211_free_node(ni);
 546         return error;
 547 }
 548
 549 static int
 550 ieee80211_ioctl_getwmeparam(struct ieee80211vap *vap, struct ieee80211req *ireq)
 551 {
 552         struct ieee80211com *ic = vap->iv_ic;
 553         struct ieee80211_wme_state *wme = &ic->ic_wme;
 554         struct wmeParams *wmep;
 555         int ac;
 556
 557         if ((ic->ic_caps & IEEE80211_C_WME) == 0)
 558                 return EINVAL;
 559
 560         ac = (ireq->i_len & IEEE80211_WMEPARAM_VAL);
 561         if (ac >= WME_NUM_AC)
 562                 ac = WME_AC_BE;
 563         if (ireq->i_len & IEEE80211_WMEPARAM_BSS)
 564                 wmep = &wme->wme_wmeBssChanParams.cap_wmeParams[ac];
 565         else
 566                 wmep = &wme->wme_wmeChanParams.cap_wmeParams[ac];
 567         switch (ireq->i_type) {
 568         case IEEE80211_IOC_WME_CWMIN:           /* WME: CWmin */
 569                 ireq->i_val = wmep->wmep_logcwmin;
 570                 break;
 571         case IEEE80211_IOC_WME_CWMAX:           /* WME: CWmax */
 572                 ireq->i_val = wmep->wmep_logcwmax;
 573                 break;
 574         case IEEE80211_IOC_WME_AIFS:            /* WME: AIFS */
 575                 ireq->i_val = wmep->wmep_aifsn;
 576                 break;
 577         case IEEE80211_IOC_WME_TXOPLIMIT:       /* WME: txops limit */
 578                 ireq->i_val = wmep->wmep_txopLimit;
 579                 break;
 580         case IEEE80211_IOC_WME_ACM:             /* WME: ACM (bss only) */
 581                 wmep = &wme->wme_wmeBssChanParams.cap_wmeParams[ac];
 582                 ireq->i_val = wmep->wmep_acm;
 583                 break;
 584         case IEEE80211_IOC_WME_ACKPOLICY:       /* WME: ACK policy (!bss only)*/
 585                 wmep = &wme->wme_wmeChanParams.cap_wmeParams[ac];
 586                 ireq->i_val = !wmep->wmep_noackPolicy;
 587                 break;
 588         }
 589         return 0;
 590 }
 591
 592 static int
 593 ieee80211_ioctl_getmaccmd(struct ieee80211vap *vap, struct ieee80211req *ireq)
 594 {
 595         const struct ieee80211_aclator *acl = vap->iv_acl;
 596
 597         return (acl == NULL ? EINVAL : acl->iac_getioctl(vap, ireq));
 598 }
 599
 600 static int
 601 ieee80211_ioctl_getcurchan(struct ieee80211vap *vap, struct ieee80211req *ireq)
 602 {
 603         struct ieee80211com *ic = vap->iv_ic;
 604         struct ieee80211_channel *c;
 605
 606         if (ireq->i_len != sizeof(struct ieee80211_channel))
 607                 return EINVAL;
 608         /*
 609          * vap's may have different operating channels when HT is
 610          * in use.  When in RUN state report the vap-specific channel.
 611          * Otherwise return curchan.
 612          */
 613         if (vap->iv_state == IEEE80211_S_RUN || vap->iv_state == IEEE80211_S_SLEEP)
 614                 c = vap->iv_bss->ni_chan;
 615         else
 616                 c = ic->ic_curchan;
 617         return copyout(c, ireq->i_data, sizeof(*c));
 618 }
 619
 620 static int
 621 getappie(const struct ieee80211_appie *aie, struct ieee80211req *ireq)
 622 {
 623         if (aie == NULL)
 624                 return EINVAL;
 625         /* NB: truncate, caller can check length */
 626         if (ireq->i_len > aie->ie_len)
 627                 ireq->i_len = aie->ie_len;
 628         return copyout(aie->ie_data, ireq->i_data, ireq->i_len);
 629 }
 630
 631 static int
 632 ieee80211_ioctl_getappie(struct ieee80211vap *vap, struct ieee80211req *ireq)
 633 {
 634         uint8_t fc0;
 635
 636         fc0 = ireq->i_val & 0xff;
 637         if ((fc0 & IEEE80211_FC0_TYPE_MASK) != IEEE80211_FC0_TYPE_MGT)
 638                 return EINVAL;
 639         /* NB: could check iv_opmode and reject but hardly worth the effort */
 640         switch (fc0 & IEEE80211_FC0_SUBTYPE_MASK) {
 641         case IEEE80211_FC0_SUBTYPE_BEACON:
 642                 return getappie(vap->iv_appie_beacon, ireq);
 643         case IEEE80211_FC0_SUBTYPE_PROBE_RESP:
 644                 return getappie(vap->iv_appie_proberesp, ireq);
 645         case IEEE80211_FC0_SUBTYPE_ASSOC_RESP:
 646                 return getappie(vap->iv_appie_assocresp, ireq);
 647         case IEEE80211_FC0_SUBTYPE_PROBE_REQ:
 648                 return getappie(vap->iv_appie_probereq, ireq);
 649         case IEEE80211_FC0_SUBTYPE_ASSOC_REQ:
 650                 return getappie(vap->iv_appie_assocreq, ireq);
 651         case IEEE80211_FC0_SUBTYPE_BEACON|IEEE80211_FC0_SUBTYPE_PROBE_RESP:
 652                 return getappie(vap->iv_appie_wpa, ireq);
 653         }
 654         return EINVAL;
 655 }
 656
 657 static int
 658 ieee80211_ioctl_getregdomain(struct ieee80211vap *vap,
 659         const struct ieee80211req *ireq)
 660 {
 661         struct ieee80211com *ic = vap->iv_ic;
 662
 663         if (ireq->i_len != sizeof(ic->ic_regdomain))
 664                 return EINVAL;
 665         return copyout(&ic->ic_regdomain, ireq->i_data,
 666             sizeof(ic->ic_regdomain));
 667 }
 668
 669 static int
 670 ieee80211_ioctl_getroam(struct ieee80211vap *vap,
 671         const struct ieee80211req *ireq)
 672 {
 673         size_t len = ireq->i_len;
 674         /* NB: accept short requests for backwards compat */
 675         if (len > sizeof(vap->iv_roamparms))
 676                 len = sizeof(vap->iv_roamparms);
 677         return copyout(vap->iv_roamparms, ireq->i_data, len);
 678 }
 679
 680 static int
 681 ieee80211_ioctl_gettxparams(struct ieee80211vap *vap,
 682         const struct ieee80211req *ireq)
 683 {
 684         size_t len = ireq->i_len;
 685         /* NB: accept short requests for backwards compat */
 686         if (len > sizeof(vap->iv_txparms))
 687                 len = sizeof(vap->iv_txparms);
 688         return copyout(vap->iv_txparms, ireq->i_data, len);
 689 }
 690
 691 static int
 692 ieee80211_ioctl_getdevcaps(struct ieee80211com *ic,
 693         const struct ieee80211req *ireq)
 694 {
 695         struct ieee80211_devcaps_req *dc;
 696         struct ieee80211req_chaninfo *ci;
 697         int maxchans, error;
 698
 699         maxchans = 1 + ((ireq->i_len - sizeof(struct ieee80211_devcaps_req)) /
 700             sizeof(struct ieee80211_channel));
 701         /* NB: require 1 so we know ic_nchans is accessible */
 702         if (maxchans < 1)
 703                 return EINVAL;
 704         /* constrain max request size, 2K channels is ~24Kbytes */
 705         if (maxchans > 2048)
 706                 maxchans = 2048;
 707         dc = (struct ieee80211_devcaps_req *)
 708             IEEE80211_MALLOC(IEEE80211_DEVCAPS_SIZE(maxchans), M_TEMP,
 709             IEEE80211_M_NOWAIT | IEEE80211_M_ZERO);
 710         if (dc == NULL)
 711                 return ENOMEM;
 712         dc->dc_drivercaps = ic->ic_caps;
 713         dc->dc_cryptocaps = ic->ic_cryptocaps;
 714         dc->dc_htcaps = ic->ic_htcaps;
 715         dc->dc_vhtcaps = ic->ic_vhtcaps;
 716         ci = &dc->dc_chaninfo;
 717         ic->ic_getradiocaps(ic, maxchans, &ci->ic_nchans, ci->ic_chans);
 718         KASSERT(ci->ic_nchans <= maxchans,
 719             ("nchans %d maxchans %d", ci->ic_nchans, maxchans));
 720         ieee80211_sort_channels(ci->ic_chans, ci->ic_nchans);
 721         error = copyout(dc, ireq->i_data, IEEE80211_DEVCAPS_SPACE(dc));
 722         IEEE80211_FREE(dc, M_TEMP);
 723         return error;
 724 }
 725
 726 static int
 727 ieee80211_ioctl_getstavlan(struct ieee80211vap *vap, struct ieee80211req *ireq)
 728 {
 729         struct ieee80211_node *ni;
 730         struct ieee80211req_sta_vlan vlan;
 731         int error;
 732
 733         if (ireq->i_len != sizeof(vlan))
 734                 return EINVAL;
 735         error = copyin(ireq->i_data, &vlan, sizeof(vlan));
 736         if (error != 0)
 737                 return error;
 738         if (!IEEE80211_ADDR_EQ(vlan.sv_macaddr, zerobssid)) {
 739                 ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap,
 740                     vlan.sv_macaddr);
 741                 if (ni == NULL)
 742                         return ENOENT;
 743         } else
 744                 ni = ieee80211_ref_node(vap->iv_bss);
 745         vlan.sv_vlan = ni->ni_vlan;
 746         error = copyout(&vlan, ireq->i_data, sizeof(vlan));
 747         ieee80211_free_node(ni);
 748         return error;
 749 }
 750
 751 /*
 752  * Dummy ioctl get handler so the linker set is defined.
 753  */
 754 static int
 755 dummy_ioctl_get(struct ieee80211vap *vap, struct ieee80211req *ireq)
 756 {
 757         return ENOSYS;
 758 }
 759 IEEE80211_IOCTL_GET(dummy, dummy_ioctl_get);
 760
 761 static int
 762 ieee80211_ioctl_getdefault(struct ieee80211vap *vap, struct ieee80211req *ireq)
 763 {
 764         ieee80211_ioctl_getfunc * const *get;
 765         int error;
 766
 767         SET_FOREACH(get, ieee80211_ioctl_getset) {
 768                 error = (*get)(vap, ireq);
 769                 if (error != ENOSYS)
 770                         return error;
 771         }
 772         return EINVAL;
 773 }
 774
 775 static int
 776 ieee80211_ioctl_get80211(struct ieee80211vap *vap, u_long cmd,
 777     struct ieee80211req *ireq)
 778 {
 779 #define MS(_v, _f)      (((_v) & _f) >> _f##_S)
 780         struct ieee80211com *ic = vap->iv_ic;
 781         u_int kid, len;
 782         uint8_t tmpkey[IEEE80211_KEYBUF_SIZE];
 783         char tmpssid[IEEE80211_NWID_LEN];
 784         int error = 0;
 785
 786         switch (ireq->i_type) {
 787         case IEEE80211_IOC_SSID:
 788                 switch (vap->iv_state) {
 789                 case IEEE80211_S_INIT:
 790                 case IEEE80211_S_SCAN:
 791                         ireq->i_len = vap->iv_des_ssid[0].len;
 792                         memcpy(tmpssid, vap->iv_des_ssid[0].ssid, ireq->i_len);
 793                         break;
 794                 default:
 795                         ireq->i_len = vap->iv_bss->ni_esslen;
 796                         memcpy(tmpssid, vap->iv_bss->ni_essid, ireq->i_len);
 797                         break;
 798                 }
 799                 error = copyout(tmpssid, ireq->i_data, ireq->i_len);
 800                 break;
 801         case IEEE80211_IOC_NUMSSIDS:
 802                 ireq->i_val = 1;
 803                 break;
 804         case IEEE80211_IOC_WEP:
 805                 if ((vap->iv_flags & IEEE80211_F_PRIVACY) == 0)
 806                         ireq->i_val = IEEE80211_WEP_OFF;
 807                 else if (vap->iv_flags & IEEE80211_F_DROPUNENC)
 808                         ireq->i_val = IEEE80211_WEP_ON;
 809                 else
 810                         ireq->i_val = IEEE80211_WEP_MIXED;
 811                 break;
 812         case IEEE80211_IOC_WEPKEY:
 813                 kid = (u_int) ireq->i_val;
 814                 if (kid >= IEEE80211_WEP_NKID)
 815                         return EINVAL;
 816                 len = (u_int) vap->iv_nw_keys[kid].wk_keylen;
 817                 /* NB: only root can read WEP keys */
 818                 if (priv_check(curthread, PRIV_NET80211_GETKEY) == 0) {
 819                         bcopy(vap->iv_nw_keys[kid].wk_key, tmpkey, len);
 820                 } else {
 821                         bzero(tmpkey, len);
 822                 }
 823                 ireq->i_len = len;
 824                 error = copyout(tmpkey, ireq->i_data, len);
 825                 break;
 826         case IEEE80211_IOC_NUMWEPKEYS:
 827                 ireq->i_val = IEEE80211_WEP_NKID;
 828                 break;
 829         case IEEE80211_IOC_WEPTXKEY:
 830                 ireq->i_val = vap->iv_def_txkey;
 831                 break;
 832         case IEEE80211_IOC_AUTHMODE:
 833                 if (vap->iv_flags & IEEE80211_F_WPA)
 834                         ireq->i_val = IEEE80211_AUTH_WPA;
 835                 else
 836                         ireq->i_val = vap->iv_bss->ni_authmode;
 837                 break;
 838         case IEEE80211_IOC_CHANNEL:
 839                 ireq->i_val = ieee80211_chan2ieee(ic, ic->ic_curchan);
 840                 break;
 841         case IEEE80211_IOC_POWERSAVE:
 842                 if (vap->iv_flags & IEEE80211_F_PMGTON)
 843                         ireq->i_val = IEEE80211_POWERSAVE_ON;
 844                 else
 845                         ireq->i_val = IEEE80211_POWERSAVE_OFF;
 846                 break;
 847         case IEEE80211_IOC_POWERSAVESLEEP:
 848                 ireq->i_val = ic->ic_lintval;
 849                 break;
 850         case IEEE80211_IOC_RTSTHRESHOLD:
 851                 ireq->i_val = vap->iv_rtsthreshold;
 852                 break;
 853         case IEEE80211_IOC_PROTMODE:
 854                 ireq->i_val = ic->ic_protmode;
 855                 break;
 856         case IEEE80211_IOC_TXPOWER:
 857                 /*
 858                  * Tx power limit is the min of max regulatory
 859                  * power, any user-set limit, and the max the
 860                  * radio can do.
 861                  *
 862                  * TODO: methodize this
 863                  */
 864                 ireq->i_val = 2*ic->ic_curchan->ic_maxregpower;
 865                 if (ireq->i_val > ic->ic_txpowlimit)
 866                         ireq->i_val = ic->ic_txpowlimit;
 867                 if (ireq->i_val > ic->ic_curchan->ic_maxpower)
 868                         ireq->i_val = ic->ic_curchan->ic_maxpower;
 869                 break;
 870         case IEEE80211_IOC_WPA:
 871                 switch (vap->iv_flags & IEEE80211_F_WPA) {
 872                 case IEEE80211_F_WPA1:
 873                         ireq->i_val = 1;
 874                         break;
 875                 case IEEE80211_F_WPA2:
 876                         ireq->i_val = 2;
 877                         break;
 878                 case IEEE80211_F_WPA1 | IEEE80211_F_WPA2:
 879                         ireq->i_val = 3;
 880                         break;
 881                 default:
 882                         ireq->i_val = 0;
 883                         break;
 884                 }
 885                 break;
 886         case IEEE80211_IOC_CHANLIST:
 887                 error = ieee80211_ioctl_getchanlist(vap, ireq);
 888                 break;
 889         case IEEE80211_IOC_ROAMING:
 890                 ireq->i_val = vap->iv_roaming;
 891                 break;
 892         case IEEE80211_IOC_PRIVACY:
 893                 ireq->i_val = (vap->iv_flags & IEEE80211_F_PRIVACY) != 0;
 894                 break;
 895         case IEEE80211_IOC_DROPUNENCRYPTED:
 896                 ireq->i_val = (vap->iv_flags & IEEE80211_F_DROPUNENC) != 0;
 897                 break;
 898         case IEEE80211_IOC_COUNTERMEASURES:
 899                 ireq->i_val = (vap->iv_flags & IEEE80211_F_COUNTERM) != 0;
 900                 break;
 901         case IEEE80211_IOC_WME:
 902                 ireq->i_val = (vap->iv_flags & IEEE80211_F_WME) != 0;
 903                 break;
 904         case IEEE80211_IOC_HIDESSID:
 905                 ireq->i_val = (vap->iv_flags & IEEE80211_F_HIDESSID) != 0;
 906                 break;
 907         case IEEE80211_IOC_APBRIDGE:
 908                 ireq->i_val = (vap->iv_flags & IEEE80211_F_NOBRIDGE) == 0;
 909                 break;
 910         case IEEE80211_IOC_WPAKEY:
 911                 error = ieee80211_ioctl_getkey(vap, ireq);
 912                 break;
 913         case IEEE80211_IOC_CHANINFO:
 914                 error = ieee80211_ioctl_getchaninfo(vap, ireq);
 915                 break;
 916         case IEEE80211_IOC_BSSID:
 917                 if (ireq->i_len != IEEE80211_ADDR_LEN)
 918                         return EINVAL;
 919                 if (vap->iv_state == IEEE80211_S_RUN || vap->iv_state == IEEE80211_S_SLEEP) {
 920                         error = copyout(vap->iv_opmode == IEEE80211_M_WDS ?
 921                             vap->iv_bss->ni_macaddr : vap->iv_bss->ni_bssid,
 922                             ireq->i_data, ireq->i_len);
 923                 } else
 924                         error = copyout(vap->iv_des_bssid, ireq->i_data,
 925                             ireq->i_len);
 926                 break;
 927         case IEEE80211_IOC_WPAIE:
 928         case IEEE80211_IOC_WPAIE2:
 929                 error = ieee80211_ioctl_getwpaie(vap, ireq, ireq->i_type);
 930                 break;
 931         case IEEE80211_IOC_SCAN_RESULTS:
 932                 error = ieee80211_ioctl_getscanresults(vap, ireq);
 933                 break;
 934         case IEEE80211_IOC_STA_STATS:
 935                 error = ieee80211_ioctl_getstastats(vap, ireq);
 936                 break;
 937         case IEEE80211_IOC_TXPOWMAX:
 938                 ireq->i_val = vap->iv_bss->ni_txpower;
 939                 break;
 940         case IEEE80211_IOC_STA_TXPOW:
 941                 error = ieee80211_ioctl_getstatxpow(vap, ireq);
 942                 break;
 943         case IEEE80211_IOC_STA_INFO:
 944                 error = ieee80211_ioctl_getstainfo(vap, ireq);
 945                 break;
 946         case IEEE80211_IOC_WME_CWMIN:           /* WME: CWmin */
 947         case IEEE80211_IOC_WME_CWMAX:           /* WME: CWmax */
 948         case IEEE80211_IOC_WME_AIFS:            /* WME: AIFS */
 949         case IEEE80211_IOC_WME_TXOPLIMIT:       /* WME: txops limit */
 950         case IEEE80211_IOC_WME_ACM:             /* WME: ACM (bss only) */
 951         case IEEE80211_IOC_WME_ACKPOLICY:       /* WME: ACK policy (!bss only) */
 952                 error = ieee80211_ioctl_getwmeparam(vap, ireq);
 953                 break;
 954         case IEEE80211_IOC_DTIM_PERIOD:
 955                 ireq->i_val = vap->iv_dtim_period;
 956                 break;
 957         case IEEE80211_IOC_BEACON_INTERVAL:
 958                 /* NB: get from ic_bss for station mode */
 959                 ireq->i_val = vap->iv_bss->ni_intval;
 960                 break;
 961         case IEEE80211_IOC_PUREG:
 962                 ireq->i_val = (vap->iv_flags & IEEE80211_F_PUREG) != 0;
 963                 break;
 964         case IEEE80211_IOC_QUIET:
 965                 ireq->i_val = vap->iv_quiet;
 966                 break;
 967         case IEEE80211_IOC_QUIET_COUNT:
 968                 ireq->i_val = vap->iv_quiet_count;
 969                 break;
 970         case IEEE80211_IOC_QUIET_PERIOD:
 971                 ireq->i_val = vap->iv_quiet_period;
 972                 break;
 973         case IEEE80211_IOC_QUIET_DUR:
 974                 ireq->i_val = vap->iv_quiet_duration;
 975                 break;
 976         case IEEE80211_IOC_QUIET_OFFSET:
 977                 ireq->i_val = vap->iv_quiet_offset;
 978                 break;
 979         case IEEE80211_IOC_BGSCAN:
 980                 ireq->i_val = (vap->iv_flags & IEEE80211_F_BGSCAN) != 0;
 981                 break;
 982         case IEEE80211_IOC_BGSCAN_IDLE:
 983                 ireq->i_val = vap->iv_bgscanidle*hz/1000;       /* ms */
 984                 break;
 985         case IEEE80211_IOC_BGSCAN_INTERVAL:
 986                 ireq->i_val = vap->iv_bgscanintvl/hz;           /* seconds */
 987                 break;
 988         case IEEE80211_IOC_SCANVALID:
 989                 ireq->i_val = vap->iv_scanvalid/hz;             /* seconds */
 990                 break;
 991         case IEEE80211_IOC_FRAGTHRESHOLD:
 992                 ireq->i_val = vap->iv_fragthreshold;
 993                 break;
 994         case IEEE80211_IOC_MACCMD:
 995                 error = ieee80211_ioctl_getmaccmd(vap, ireq);
 996                 break;
 997         case IEEE80211_IOC_BURST:
 998                 ireq->i_val = (vap->iv_flags & IEEE80211_F_BURST) != 0;
 999                 break;
1000         case IEEE80211_IOC_BMISSTHRESHOLD:
1001                 ireq->i_val = vap->iv_bmissthreshold;
1002                 break;
1003         case IEEE80211_IOC_CURCHAN:
1004                 error = ieee80211_ioctl_getcurchan(vap, ireq);
1005                 break;
1006         case IEEE80211_IOC_SHORTGI:
1007                 ireq->i_val = 0;
1008                 if (vap->iv_flags_ht & IEEE80211_FHT_SHORTGI20)
1009                         ireq->i_val |= IEEE80211_HTCAP_SHORTGI20;
1010                 if (vap->iv_flags_ht & IEEE80211_FHT_SHORTGI40)
1011                         ireq->i_val |= IEEE80211_HTCAP_SHORTGI40;
1012                 break;
1013         case IEEE80211_IOC_AMPDU:
1014                 ireq->i_val = 0;
1015                 if (vap->iv_flags_ht & IEEE80211_FHT_AMPDU_TX)
1016                         ireq->i_val |= 1;
1017                 if (vap->iv_flags_ht & IEEE80211_FHT_AMPDU_RX)
1018                         ireq->i_val |= 2;
1019                 break;
1020         case IEEE80211_IOC_AMPDU_LIMIT:
1021                 /* XXX TODO: make this a per-node thing; and leave this as global */
1022                 if (vap->iv_opmode == IEEE80211_M_HOSTAP)
1023                         ireq->i_val = vap->iv_ampdu_rxmax;
1024                 else if (vap->iv_state == IEEE80211_S_RUN || vap->iv_state == IEEE80211_S_SLEEP)
1025                         /*
1026                          * XXX TODO: this isn't completely correct, as we've
1027                          * negotiated the higher of the two.
1028                          */
1029                         ireq->i_val = MS(vap->iv_bss->ni_htparam,
1030                             IEEE80211_HTCAP_MAXRXAMPDU);
1031                 else
1032                         ireq->i_val = vap->iv_ampdu_limit;
1033                 break;
1034         case IEEE80211_IOC_AMPDU_DENSITY:
1035                 /* XXX TODO: make this a per-node thing; and leave this as global */
1036                 if (vap->iv_opmode == IEEE80211_M_STA &&
1037                     (vap->iv_state == IEEE80211_S_RUN || vap->iv_state == IEEE80211_S_SLEEP))
1038                         /*
1039                          * XXX TODO: this isn't completely correct, as we've
1040                          * negotiated the higher of the two.
1041                          */
1042                         ireq->i_val = MS(vap->iv_bss->ni_htparam,
1043                             IEEE80211_HTCAP_MPDUDENSITY);
1044                 else
1045                         ireq->i_val = vap->iv_ampdu_density;
1046                 break;
1047         case IEEE80211_IOC_AMSDU:
1048                 ireq->i_val = 0;
1049                 if (vap->iv_flags_ht & IEEE80211_FHT_AMSDU_TX)
1050                         ireq->i_val |= 1;
1051                 if (vap->iv_flags_ht & IEEE80211_FHT_AMSDU_RX)
1052                         ireq->i_val |= 2;
1053                 break;
1054         case IEEE80211_IOC_AMSDU_LIMIT:
1055                 ireq->i_val = vap->iv_amsdu_limit;      /* XXX truncation? */
1056                 break;
1057         case IEEE80211_IOC_PUREN:
1058                 ireq->i_val = (vap->iv_flags_ht & IEEE80211_FHT_PUREN) != 0;
1059                 break;
1060         case IEEE80211_IOC_DOTH:
1061                 ireq->i_val = (vap->iv_flags & IEEE80211_F_DOTH) != 0;
1062                 break;
1063         case IEEE80211_IOC_REGDOMAIN:
1064                 error = ieee80211_ioctl_getregdomain(vap, ireq);
1065                 break;
1066         case IEEE80211_IOC_ROAM:
1067                 error = ieee80211_ioctl_getroam(vap, ireq);
1068                 break;
1069         case IEEE80211_IOC_TXPARAMS:
1070                 error = ieee80211_ioctl_gettxparams(vap, ireq);
1071                 break;
1072         case IEEE80211_IOC_HTCOMPAT:
1073                 ireq->i_val = (vap->iv_flags_ht & IEEE80211_FHT_HTCOMPAT) != 0;
1074                 break;
1075         case IEEE80211_IOC_DWDS:
1076                 ireq->i_val = (vap->iv_flags & IEEE80211_F_DWDS) != 0;
1077                 break;
1078         case IEEE80211_IOC_INACTIVITY:
1079                 ireq->i_val = (vap->iv_flags_ext & IEEE80211_FEXT_INACT) != 0;
1080                 break;
1081         case IEEE80211_IOC_APPIE:
1082                 error = ieee80211_ioctl_getappie(vap, ireq);
1083                 break;
1084         case IEEE80211_IOC_WPS:
1085                 ireq->i_val = (vap->iv_flags_ext & IEEE80211_FEXT_WPS) != 0;
1086                 break;
1087         case IEEE80211_IOC_TSN:
1088                 ireq->i_val = (vap->iv_flags_ext & IEEE80211_FEXT_TSN) != 0;
1089                 break;
1090         case IEEE80211_IOC_DFS:
1091                 ireq->i_val = (vap->iv_flags_ext & IEEE80211_FEXT_DFS) != 0;
1092                 break;
1093         case IEEE80211_IOC_DOTD:
1094                 ireq->i_val = (vap->iv_flags_ext & IEEE80211_FEXT_DOTD) != 0;
1095                 break;
1096         case IEEE80211_IOC_DEVCAPS:
1097                 error = ieee80211_ioctl_getdevcaps(ic, ireq);
1098                 break;
1099         case IEEE80211_IOC_HTPROTMODE:
1100                 ireq->i_val = ic->ic_htprotmode;
1101                 break;
1102         case IEEE80211_IOC_HTCONF:
1103                 if (vap->iv_flags_ht & IEEE80211_FHT_HT) {
1104                         ireq->i_val = 1;
1105                         if (vap->iv_flags_ht & IEEE80211_FHT_USEHT40)
1106                                 ireq->i_val |= 2;
1107                 } else
1108                         ireq->i_val = 0;
1109                 break;
1110         case IEEE80211_IOC_STA_VLAN:
1111                 error = ieee80211_ioctl_getstavlan(vap, ireq);
1112                 break;
1113         case IEEE80211_IOC_SMPS:
1114                 if (vap->iv_opmode == IEEE80211_M_STA &&
1115                     (vap->iv_state == IEEE80211_S_RUN || vap->iv_state == IEEE80211_S_SLEEP)) {
1116                         if (vap->iv_bss->ni_flags & IEEE80211_NODE_MIMO_RTS)
1117                                 ireq->i_val = IEEE80211_HTCAP_SMPS_DYNAMIC;
1118                         else if (vap->iv_bss->ni_flags & IEEE80211_NODE_MIMO_PS)
1119                                 ireq->i_val = IEEE80211_HTCAP_SMPS_ENA;
1120                         else
1121                                 ireq->i_val = IEEE80211_HTCAP_SMPS_OFF;
1122                 } else
1123                         ireq->i_val = vap->iv_htcaps & IEEE80211_HTCAP_SMPS;
1124                 break;
1125         case IEEE80211_IOC_RIFS:
1126                 if (vap->iv_opmode == IEEE80211_M_STA &&
1127                     (vap->iv_state == IEEE80211_S_RUN || vap->iv_state == IEEE80211_S_SLEEP))
1128                         ireq->i_val =
1129                             (vap->iv_bss->ni_flags & IEEE80211_NODE_RIFS) != 0;
1130                 else
1131                         ireq->i_val =
1132                             (vap->iv_flags_ht & IEEE80211_FHT_RIFS) != 0;
1133                 break;
1134         case IEEE80211_IOC_STBC:
1135                 ireq->i_val = 0;
1136                 if (vap->iv_flags_ht & IEEE80211_FHT_STBC_TX)
1137                         ireq->i_val |= 1;
1138                 if (vap->iv_flags_ht & IEEE80211_FHT_STBC_RX)
1139                         ireq->i_val |= 2;
1140                 break;
1141         case IEEE80211_IOC_LDPC:
1142                 ireq->i_val = 0;
1143                 if (vap->iv_flags_ht & IEEE80211_FHT_LDPC_TX)
1144                         ireq->i_val |= 1;
1145                 if (vap->iv_flags_ht & IEEE80211_FHT_LDPC_RX)
1146                         ireq->i_val |= 2;
1147                 break;
1148
1149         /* VHT */
1150         case IEEE80211_IOC_VHTCONF:
1151                 ireq->i_val = 0;
1152                 if (vap->iv_flags_vht & IEEE80211_FVHT_VHT)
1153                         ireq->i_val |= 1;
1154                 if (vap->iv_flags_vht & IEEE80211_FVHT_USEVHT40)
1155                         ireq->i_val |= 2;
1156                 if (vap->iv_flags_vht & IEEE80211_FVHT_USEVHT80)
1157                         ireq->i_val |= 4;
1158                 if (vap->iv_flags_vht & IEEE80211_FVHT_USEVHT80P80)
1159                         ireq->i_val |= 8;
1160                 if (vap->iv_flags_vht & IEEE80211_FVHT_USEVHT160)
1161                         ireq->i_val |= 16;
1162                 break;
1163
1164         default:
1165                 error = ieee80211_ioctl_getdefault(vap, ireq);
1166                 break;
1167         }
1168         return error;
1169 #undef MS
1170 }
1171
1172 static int
1173 ieee80211_ioctl_setkey(struct ieee80211vap *vap, struct ieee80211req *ireq)
1174 {
1175         struct ieee80211req_key ik;
1176         struct ieee80211_node *ni;
1177         struct ieee80211_key *wk;
1178         uint16_t kid;
1179         int error, i;
1180
1181         if (ireq->i_len != sizeof(ik))
1182                 return EINVAL;
1183         error = copyin(ireq->i_data, &ik, sizeof(ik));
1184         if (error)
1185                 return error;
1186         /* NB: cipher support is verified by ieee80211_crypt_newkey */
1187         /* NB: this also checks ik->ik_keylen > sizeof(wk->wk_key) */
1188         if (ik.ik_keylen > sizeof(ik.ik_keydata))
1189                 return E2BIG;
1190         kid = ik.ik_keyix;
1191         if (kid == IEEE80211_KEYIX_NONE) {
1192                 /* XXX unicast keys currently must be tx/rx */
1193                 if (ik.ik_flags != (IEEE80211_KEY_XMIT | IEEE80211_KEY_RECV))
1194                         return EINVAL;
1195                 if (vap->iv_opmode == IEEE80211_M_STA) {
1196                         ni = ieee80211_ref_node(vap->iv_bss);
1197                         if (!IEEE80211_ADDR_EQ(ik.ik_macaddr, ni->ni_bssid)) {
1198                                 ieee80211_free_node(ni);
1199                                 return EADDRNOTAVAIL;
1200                         }
1201                 } else {
1202                         ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap,
1203                                 ik.ik_macaddr);
1204                         if (ni == NULL)
1205                                 return ENOENT;
1206                 }
1207                 wk = &ni->ni_ucastkey;
1208         } else {
1209                 if (kid >= IEEE80211_WEP_NKID)
1210                         return EINVAL;
1211                 wk = &vap->iv_nw_keys[kid];
1212                 /*
1213                  * Global slots start off w/o any assigned key index.
1214                  * Force one here for consistency with IEEE80211_IOC_WEPKEY.
1215                  */
1216                 if (wk->wk_keyix == IEEE80211_KEYIX_NONE)
1217                         wk->wk_keyix = kid;
1218                 ni = NULL;
1219         }
1220         error = 0;
1221         ieee80211_key_update_begin(vap);
1222         if (ieee80211_crypto_newkey(vap, ik.ik_type, ik.ik_flags, wk)) {
1223                 wk->wk_keylen = ik.ik_keylen;
1224                 /* NB: MIC presence is implied by cipher type */
1225                 if (wk->wk_keylen > IEEE80211_KEYBUF_SIZE)
1226                         wk->wk_keylen = IEEE80211_KEYBUF_SIZE;
1227                 for (i = 0; i < IEEE80211_TID_SIZE; i++)
1228                         wk->wk_keyrsc[i] = ik.ik_keyrsc;
1229                 wk->wk_keytsc = 0;                      /* new key, reset */
1230                 memset(wk->wk_key, 0, sizeof(wk->wk_key));
1231                 memcpy(wk->wk_key, ik.ik_keydata, ik.ik_keylen);
1232                 IEEE80211_ADDR_COPY(wk->wk_macaddr,
1233                     ni != NULL ?  ni->ni_macaddr : ik.ik_macaddr);
1234                 if (!ieee80211_crypto_setkey(vap, wk))
1235                         error = EIO;
1236                 else if ((ik.ik_flags & IEEE80211_KEY_DEFAULT))
1237                         /*
1238                          * Inform the driver that this is the default
1239                          * transmit key.  Now, ideally we'd just set
1240                          * a flag in the key update that would
1241                          * say "yes, we're the default key", but
1242                          * that currently isn't the way the ioctl ->
1243                          * key interface works.
1244                          */
1245                         ieee80211_crypto_set_deftxkey(vap, kid);
1246         } else
1247                 error = ENXIO;
1248         ieee80211_key_update_end(vap);
1249         if (ni != NULL)
1250                 ieee80211_free_node(ni);
1251         return error;
1252 }
1253
1254 static int
1255 ieee80211_ioctl_delkey(struct ieee80211vap *vap, struct ieee80211req *ireq)
1256 {
1257         struct ieee80211req_del_key dk;
1258         int kid, error;
1259
1260         if (ireq->i_len != sizeof(dk))
1261                 return EINVAL;
1262         error = copyin(ireq->i_data, &dk, sizeof(dk));
1263         if (error)
1264                 return error;
1265         kid = dk.idk_keyix;
1266         /* XXX uint8_t -> uint16_t */
1267         if (dk.idk_keyix == (uint8_t) IEEE80211_KEYIX_NONE) {
1268                 struct ieee80211_node *ni;
1269
1270                 if (vap->iv_opmode == IEEE80211_M_STA) {
1271                         ni = ieee80211_ref_node(vap->iv_bss);
1272                         if (!IEEE80211_ADDR_EQ(dk.idk_macaddr, ni->ni_bssid)) {
1273                                 ieee80211_free_node(ni);
1274                                 return EADDRNOTAVAIL;
1275                         }
1276                 } else {
1277                         ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap,
1278                                 dk.idk_macaddr);
1279                         if (ni == NULL)
1280                                 return ENOENT;
1281                 }
1282                 /* XXX error return */
1283                 ieee80211_node_delucastkey(ni);
1284                 ieee80211_free_node(ni);
1285         } else {
1286                 if (kid >= IEEE80211_WEP_NKID)
1287                         return EINVAL;
1288                 /* XXX error return */
1289                 ieee80211_crypto_delkey(vap, &vap->iv_nw_keys[kid]);
1290         }
1291         return 0;
1292 }
1293
1294 struct mlmeop {
1295         struct ieee80211vap *vap;
1296         int     op;
1297         int     reason;
1298 };
1299
1300 static void
1301 mlmedebug(struct ieee80211vap *vap, const uint8_t mac[IEEE80211_ADDR_LEN],
1302         int op, int reason)
1303 {
1304 #ifdef IEEE80211_DEBUG
1305         static const struct {
1306                 int mask;
1307                 const char *opstr;
1308         } ops[] = {
1309                 { 0, "op#0" },
1310                 { IEEE80211_MSG_IOCTL | IEEE80211_MSG_STATE |
1311                   IEEE80211_MSG_ASSOC, "assoc" },
1312                 { IEEE80211_MSG_IOCTL | IEEE80211_MSG_STATE |
1313                   IEEE80211_MSG_ASSOC, "disassoc" },
1314                 { IEEE80211_MSG_IOCTL | IEEE80211_MSG_STATE |
1315                   IEEE80211_MSG_AUTH, "deauth" },
1316                 { IEEE80211_MSG_IOCTL | IEEE80211_MSG_STATE |
1317                   IEEE80211_MSG_AUTH, "authorize" },
1318                 { IEEE80211_MSG_IOCTL | IEEE80211_MSG_STATE |
1319                   IEEE80211_MSG_AUTH, "unauthorize" },
1320         };
1321
1322         if (op == IEEE80211_MLME_AUTH) {
1323                 IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_IOCTL |
1324                     IEEE80211_MSG_STATE | IEEE80211_MSG_AUTH, mac,
1325                     "station authenticate %s via MLME (reason: %d (%s))",
1326                     reason == IEEE80211_STATUS_SUCCESS ? "ACCEPT" : "REJECT",
1327                     reason, ieee80211_reason_to_string(reason));
1328         } else if (!(IEEE80211_MLME_ASSOC <= op && op <= IEEE80211_MLME_AUTH)) {
1329                 IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_ANY, mac,
1330                     "unknown MLME request %d (reason: %d (%s))", op, reason,
1331                     ieee80211_reason_to_string(reason));
1332         } else if (reason == IEEE80211_STATUS_SUCCESS) {
1333                 IEEE80211_NOTE_MAC(vap, ops[op].mask, mac,
1334                     "station %s via MLME", ops[op].opstr);
1335         } else {
1336                 IEEE80211_NOTE_MAC(vap, ops[op].mask, mac,
1337                     "station %s via MLME (reason: %d (%s))", ops[op].opstr,
1338                     reason, ieee80211_reason_to_string(reason));
1339         }
1340 #endif /* IEEE80211_DEBUG */
1341 }
1342
1343 static void
1344 domlme(void *arg, struct ieee80211_node *ni)
1345 {
1346         struct mlmeop *mop = arg;
1347         struct ieee80211vap *vap = ni->ni_vap;
1348
1349         if (vap != mop->vap)
1350                 return;
1351         /*
1352          * NB: if ni_associd is zero then the node is already cleaned
1353          * up and we don't need to do this (we're safely holding a
1354          * reference but should otherwise not modify it's state).
1355          */
1356         if (ni->ni_associd == 0)
1357                 return;
1358         mlmedebug(vap, ni->ni_macaddr, mop->op, mop->reason);
1359         if (mop->op == IEEE80211_MLME_DEAUTH) {
1360                 IEEE80211_SEND_MGMT(ni, IEEE80211_FC0_SUBTYPE_DEAUTH,
1361                     mop->reason);
1362         } else {
1363                 IEEE80211_SEND_MGMT(ni, IEEE80211_FC0_SUBTYPE_DISASSOC,
1364                     mop->reason);
1365         }
1366         ieee80211_node_leave(ni);
1367 }
1368
1369 static int
1370 setmlme_dropsta(struct ieee80211vap *vap,
1371         const uint8_t mac[IEEE80211_ADDR_LEN], struct mlmeop *mlmeop)
1372 {
1373         struct ieee80211_node_table *nt = &vap->iv_ic->ic_sta;
1374         struct ieee80211_node *ni;
1375         int error = 0;
1376
1377         /* NB: the broadcast address means do 'em all */
1378         if (!IEEE80211_ADDR_EQ(mac, vap->iv_ifp->if_broadcastaddr)) {
1379                 IEEE80211_NODE_LOCK(nt);
1380                 ni = ieee80211_find_node_locked(nt, mac);
1381                 IEEE80211_NODE_UNLOCK(nt);
1382                 /*
1383                  * Don't do the node update inside the node
1384                  * table lock.  This unfortunately causes LORs
1385                  * with drivers and their TX paths.
1386                  */
1387                 if (ni != NULL) {
1388                         domlme(mlmeop, ni);
1389                         ieee80211_free_node(ni);
1390                 } else
1391                         error = ENOENT;
1392         } else {
1393                 ieee80211_iterate_nodes(nt, domlme, mlmeop);
1394         }
1395         return error;
1396 }
1397
1398 static int
1399 setmlme_common(struct ieee80211vap *vap, int op,
1400         const uint8_t mac[IEEE80211_ADDR_LEN], int reason)
1401 {
1402         struct ieee80211com *ic = vap->iv_ic;
1403         struct ieee80211_node_table *nt = &ic->ic_sta;
1404         struct ieee80211_node *ni;
1405         struct mlmeop mlmeop;
1406         int error;
1407
1408         error = 0;
1409         switch (op) {
1410         case IEEE80211_MLME_DISASSOC:
1411         case IEEE80211_MLME_DEAUTH:
1412                 switch (vap->iv_opmode) {
1413                 case IEEE80211_M_STA:
1414                         mlmedebug(vap, vap->iv_bss->ni_macaddr, op, reason);
1415                         /* XXX not quite right */
1416                         ieee80211_new_state(vap, IEEE80211_S_INIT, reason);
1417                         break;
1418                 case IEEE80211_M_HOSTAP:
1419                         mlmeop.vap = vap;
1420                         mlmeop.op = op;
1421                         mlmeop.reason = reason;
1422                         error = setmlme_dropsta(vap, mac, &mlmeop);
1423                         break;
1424                 case IEEE80211_M_WDS:
1425                         /* XXX user app should send raw frame? */
1426                         if (op != IEEE80211_MLME_DEAUTH) {
1427                                 error = EINVAL;
1428                                 break;
1429                         }
1430 #if 0
1431                         /* XXX accept any address, simplifies user code */
1432                         if (!IEEE80211_ADDR_EQ(mac, vap->iv_bss->ni_macaddr)) {
1433                                 error = EINVAL;
1434                                 break;
1435                         }
1436 #endif
1437                         mlmedebug(vap, vap->iv_bss->ni_macaddr, op, reason);
1438                         ni = ieee80211_ref_node(vap->iv_bss);
1439                         IEEE80211_SEND_MGMT(ni,
1440                             IEEE80211_FC0_SUBTYPE_DEAUTH, reason);
1441                         ieee80211_free_node(ni);
1442                         break;
1443                 case IEEE80211_M_MBSS:
1444                         IEEE80211_NODE_LOCK(nt);
1445                         ni = ieee80211_find_node_locked(nt, mac);
1446                         /*
1447                          * Don't do the node update inside the node
1448                          * table lock.  This unfortunately causes LORs
1449                          * with drivers and their TX paths.
1450                          */
1451                         IEEE80211_NODE_UNLOCK(nt);
1452                         if (ni != NULL) {
1453                                 ieee80211_node_leave(ni);
1454                                 ieee80211_free_node(ni);
1455                         } else {
1456                                 error = ENOENT;
1457                         }
1458                         break;
1459                 default:
1460                         error = EINVAL;
1461                         break;
1462                 }
1463                 break;
1464         case IEEE80211_MLME_AUTHORIZE:
1465         case IEEE80211_MLME_UNAUTHORIZE:
1466                 if (vap->iv_opmode != IEEE80211_M_HOSTAP &&
1467                     vap->iv_opmode != IEEE80211_M_WDS) {
1468                         error = EINVAL;
1469                         break;
1470                 }
1471                 IEEE80211_NODE_LOCK(nt);
1472                 ni = ieee80211_find_vap_node_locked(nt, vap, mac);
1473                 /*
1474                  * Don't do the node update inside the node
1475                  * table lock.  This unfortunately causes LORs
1476                  * with drivers and their TX paths.
1477                  */
1478                 IEEE80211_NODE_UNLOCK(nt);
1479                 if (ni != NULL) {
1480                         mlmedebug(vap, mac, op, reason);
1481                         if (op == IEEE80211_MLME_AUTHORIZE)
1482                                 ieee80211_node_authorize(ni);
1483                         else
1484                                 ieee80211_node_unauthorize(ni);
1485                         ieee80211_free_node(ni);
1486                 } else
1487                         error = ENOENT;
1488                 break;
1489         case IEEE80211_MLME_AUTH:
1490                 if (vap->iv_opmode != IEEE80211_M_HOSTAP) {
1491                         error = EINVAL;
1492                         break;
1493                 }
1494                 IEEE80211_NODE_LOCK(nt);
1495                 ni = ieee80211_find_vap_node_locked(nt, vap, mac);
1496                 /*
1497                  * Don't do the node update inside the node
1498                  * table lock.  This unfortunately causes LORs
1499                  * with drivers and their TX paths.
1500                  */
1501                 IEEE80211_NODE_UNLOCK(nt);
1502                 if (ni != NULL) {
1503                         mlmedebug(vap, mac, op, reason);
1504                         if (reason == IEEE80211_STATUS_SUCCESS) {
1505                                 IEEE80211_SEND_MGMT(ni,
1506                                     IEEE80211_FC0_SUBTYPE_AUTH, 2);
1507                                 /*
1508                                  * For shared key auth, just continue the
1509                                  * exchange.  Otherwise when 802.1x is not in
1510                                  * use mark the port authorized at this point
1511                                  * so traffic can flow.
1512                                  */
1513                                 if (ni->ni_authmode != IEEE80211_AUTH_8021X &&
1514                                     ni->ni_challenge == NULL)
1515                                       ieee80211_node_authorize(ni);
1516                         } else {
1517                                 vap->iv_stats.is_rx_acl++;
1518                                 ieee80211_send_error(ni, ni->ni_macaddr,
1519                                     IEEE80211_FC0_SUBTYPE_AUTH, 2|(reason<<16));
1520                                 ieee80211_node_leave(ni);
1521                         }
1522                         ieee80211_free_node(ni);
1523                 } else
1524                         error = ENOENT;
1525                 break;
1526         default:
1527                 error = EINVAL;
1528                 break;
1529         }
1530         return error;
1531 }
1532
1533 struct scanlookup {
1534         const uint8_t *mac;
1535         int esslen;
1536         const uint8_t *essid;
1537         const struct ieee80211_scan_entry *se;
1538 };
1539
1540 /*
1541  * Match mac address and any ssid.
1542  */
1543 static void
1544 mlmelookup(void *arg, const struct ieee80211_scan_entry *se)
1545 {
1546         struct scanlookup *look = arg;
1547
1548         if (!IEEE80211_ADDR_EQ(look->mac, se->se_macaddr))
1549                 return;
1550         if (look->esslen != 0) {
1551                 if (se->se_ssid[1] != look->esslen)
1552                         return;
1553                 if (memcmp(look->essid, se->se_ssid+2, look->esslen))
1554                         return;
1555         }
1556         look->se = se;
1557 }
1558
1559 static int
1560 setmlme_assoc_sta(struct ieee80211vap *vap,
1561         const uint8_t mac[IEEE80211_ADDR_LEN], int ssid_len,
1562         const uint8_t ssid[IEEE80211_NWID_LEN])
1563 {
1564         struct scanlookup lookup;
1565
1566         KASSERT(vap->iv_opmode == IEEE80211_M_STA,
1567             ("expected opmode STA not %s",
1568             ieee80211_opmode_name[vap->iv_opmode]));
1569
1570         /* NB: this is racey if roaming is !manual */
1571         lookup.se = NULL;
1572         lookup.mac = mac;
1573         lookup.esslen = ssid_len;
1574         lookup.essid = ssid;
1575         ieee80211_scan_iterate(vap, mlmelookup, &lookup);
1576         if (lookup.se == NULL)
1577                 return ENOENT;
1578         mlmedebug(vap, mac, IEEE80211_MLME_ASSOC, 0);
1579         if (!ieee80211_sta_join(vap, lookup.se->se_chan, lookup.se))
1580                 return EIO;             /* XXX unique but could be better */
1581         return 0;
1582 }
1583
1584 static int
1585 setmlme_assoc_adhoc(struct ieee80211vap *vap,
1586         const uint8_t mac[IEEE80211_ADDR_LEN], int ssid_len,
1587         const uint8_t ssid[IEEE80211_NWID_LEN])
1588 {
1589         struct ieee80211_scan_req *sr;
1590         int error;
1591
1592         KASSERT(vap->iv_opmode == IEEE80211_M_IBSS ||
1593             vap->iv_opmode == IEEE80211_M_AHDEMO,
1594             ("expected opmode IBSS or AHDEMO not %s",
1595             ieee80211_opmode_name[vap->iv_opmode]));
1596
1597         if (ssid_len == 0)
1598                 return EINVAL;
1599
1600         sr = IEEE80211_MALLOC(sizeof(*sr), M_TEMP,
1601              IEEE80211_M_NOWAIT | IEEE80211_M_ZERO);
1602         if (sr == NULL)
1603                 return ENOMEM;
1604
1605         /* NB: IEEE80211_IOC_SSID call missing for ap_scan=2. */
1606         memset(vap->iv_des_ssid[0].ssid, 0, IEEE80211_NWID_LEN);
1607         vap->iv_des_ssid[0].len = ssid_len;
1608         memcpy(vap->iv_des_ssid[0].ssid, ssid, ssid_len);
1609         vap->iv_des_nssid = 1;
1610
1611         sr->sr_flags = IEEE80211_IOC_SCAN_ACTIVE | IEEE80211_IOC_SCAN_ONCE;
1612         sr->sr_duration = IEEE80211_IOC_SCAN_FOREVER;
1613         memcpy(sr->sr_ssid[0].ssid, ssid, ssid_len);
1614         sr->sr_ssid[0].len = ssid_len;
1615         sr->sr_nssid = 1;
1616
1617         error = ieee80211_scanreq(vap, sr);
1618
1619         IEEE80211_FREE(sr, M_TEMP);
1620         return error;
1621 }
1622
1623 static int
1624 ieee80211_ioctl_setmlme(struct ieee80211vap *vap, struct ieee80211req *ireq)
1625 {
1626         struct ieee80211req_mlme mlme;
1627         int error;
1628
1629         if (ireq->i_len != sizeof(mlme))
1630                 return EINVAL;
1631         error = copyin(ireq->i_data, &mlme, sizeof(mlme));
1632         if (error)
1633                 return error;
1634         if  (vap->iv_opmode == IEEE80211_M_STA &&
1635             mlme.im_op == IEEE80211_MLME_ASSOC)
1636                 return setmlme_assoc_sta(vap, mlme.im_macaddr,
1637                     vap->iv_des_ssid[0].len, vap->iv_des_ssid[0].ssid);
1638         else if ((vap->iv_opmode == IEEE80211_M_IBSS ||
1639             vap->iv_opmode == IEEE80211_M_AHDEMO) &&
1640             mlme.im_op == IEEE80211_MLME_ASSOC)
1641                 return setmlme_assoc_adhoc(vap, mlme.im_macaddr,
1642                     mlme.im_ssid_len, mlme.im_ssid);
1643         else
1644                 return setmlme_common(vap, mlme.im_op,
1645                     mlme.im_macaddr, mlme.im_reason);
1646 }
1647
1648 static int
1649 ieee80211_ioctl_macmac(struct ieee80211vap *vap, struct ieee80211req *ireq)
1650 {
1651         uint8_t mac[IEEE80211_ADDR_LEN];
1652         const struct ieee80211_aclator *acl = vap->iv_acl;
1653         int error;
1654
1655         if (ireq->i_len != sizeof(mac))
1656                 return EINVAL;
1657         error = copyin(ireq->i_data, mac, ireq->i_len);
1658         if (error)
1659                 return error;
1660         if (acl == NULL) {
1661                 acl = ieee80211_aclator_get("mac");
1662                 if (acl == NULL || !acl->iac_attach(vap))
1663                         return EINVAL;
1664                 vap->iv_acl = acl;
1665         }
1666         if (ireq->i_type == IEEE80211_IOC_ADDMAC)
1667                 acl->iac_add(vap, mac);
1668         else
1669                 acl->iac_remove(vap, mac);
1670         return 0;
1671 }
1672
1673 static int
1674 ieee80211_ioctl_setmaccmd(struct ieee80211vap *vap, struct ieee80211req *ireq)
1675 {
1676         const struct ieee80211_aclator *acl = vap->iv_acl;
1677
1678         switch (ireq->i_val) {
1679         case IEEE80211_MACCMD_POLICY_OPEN:
1680         case IEEE80211_MACCMD_POLICY_ALLOW:
1681         case IEEE80211_MACCMD_POLICY_DENY:
1682         case IEEE80211_MACCMD_POLICY_RADIUS:
1683                 if (acl == NULL) {
1684                         acl = ieee80211_aclator_get("mac");
1685                         if (acl == NULL || !acl->iac_attach(vap))
1686                                 return EINVAL;
1687                         vap->iv_acl = acl;
1688                 }
1689                 acl->iac_setpolicy(vap, ireq->i_val);
1690                 break;
1691         case IEEE80211_MACCMD_FLUSH:
1692                 if (acl != NULL)
1693                         acl->iac_flush(vap);
1694                 /* NB: silently ignore when not in use */
1695                 break;
1696         case IEEE80211_MACCMD_DETACH:
1697                 if (acl != NULL) {
1698                         vap->iv_acl = NULL;
1699                         acl->iac_detach(vap);
1700                 }
1701                 break;
1702         default:
1703                 if (acl == NULL)
1704                         return EINVAL;
1705                 else
1706                         return acl->iac_setioctl(vap, ireq);
1707         }
1708         return 0;
1709 }
1710
1711 static int
1712 ieee80211_ioctl_setchanlist(struct ieee80211vap *vap, struct ieee80211req *ireq)
1713 {
1714         struct ieee80211com *ic = vap->iv_ic;
1715         uint8_t *chanlist, *list;
1716         int i, nchan, maxchan, error;
1717
1718         if (ireq->i_len > sizeof(ic->ic_chan_active))
1719                 ireq->i_len = sizeof(ic->ic_chan_active);
1720         list = IEEE80211_MALLOC(ireq->i_len + IEEE80211_CHAN_BYTES, M_TEMP,
1721             IEEE80211_M_NOWAIT | IEEE80211_M_ZERO);
1722         if (list == NULL)
1723                 return ENOMEM;
1724         error = copyin(ireq->i_data, list, ireq->i_len);
1725         if (error) {
1726                 IEEE80211_FREE(list, M_TEMP);
1727                 return error;
1728         }
1729         nchan = 0;
1730         chanlist = list + ireq->i_len;          /* NB: zero'd already */
1731         maxchan = ireq->i_len * NBBY;
1732         for (i = 0; i < ic->ic_nchans; i++) {
1733                 const struct ieee80211_channel *c = &ic->ic_channels[i];
1734                 /*
1735                  * Calculate the intersection of the user list and the
1736                  * available channels so users can do things like specify
1737                  * 1-255 to get all available channels.
1738                  */
1739                 if (c->ic_ieee < maxchan && isset(list, c->ic_ieee)) {
1740                         setbit(chanlist, c->ic_ieee);
1741                         nchan++;
1742                 }
1743         }
1744         if (nchan == 0) {
1745                 IEEE80211_FREE(list, M_TEMP);
1746                 return EINVAL;
1747         }
1748         if (ic->ic_bsschan != IEEE80211_CHAN_ANYC &&    /* XXX */
1749             isclr(chanlist, ic->ic_bsschan->ic_ieee))
1750                 ic->ic_bsschan = IEEE80211_CHAN_ANYC;
1751         memcpy(ic->ic_chan_active, chanlist, IEEE80211_CHAN_BYTES);
1752         ieee80211_scan_flush(vap);
1753         IEEE80211_FREE(list, M_TEMP);
1754         return ENETRESET;
1755 }
1756
1757 static int
1758 ieee80211_ioctl_setstastats(struct ieee80211vap *vap, struct ieee80211req *ireq)
1759 {
1760         struct ieee80211_node *ni;
1761         uint8_t macaddr[IEEE80211_ADDR_LEN];
1762         int error;
1763
1764         /*
1765          * NB: we could copyin ieee80211req_sta_stats so apps
1766          *     could make selective changes but that's overkill;
1767          *     just clear all stats for now.
1768          */
1769         if (ireq->i_len < IEEE80211_ADDR_LEN)
1770                 return EINVAL;
1771         error = copyin(ireq->i_data, macaddr, IEEE80211_ADDR_LEN);
1772         if (error != 0)
1773                 return error;
1774         ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap, macaddr);
1775         if (ni == NULL)
1776                 return ENOENT;
1777         /* XXX require ni_vap == vap? */
1778         memset(&ni->ni_stats, 0, sizeof(ni->ni_stats));
1779         ieee80211_free_node(ni);
1780         return 0;
1781 }
1782
1783 static int
1784 ieee80211_ioctl_setstatxpow(struct ieee80211vap *vap, struct ieee80211req *ireq)
1785 {
1786         struct ieee80211_node *ni;
1787         struct ieee80211req_sta_txpow txpow;
1788         int error;
1789
1790         if (ireq->i_len != sizeof(txpow))
1791                 return EINVAL;
1792         error = copyin(ireq->i_data, &txpow, sizeof(txpow));
1793         if (error != 0)
1794                 return error;
1795         ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap, txpow.it_macaddr);
1796         if (ni == NULL)
1797                 return ENOENT;
1798         ni->ni_txpower = txpow.it_txpow;
1799         ieee80211_free_node(ni);
1800         return error;
1801 }
1802
1803 static int
1804 ieee80211_ioctl_setwmeparam(struct ieee80211vap *vap, struct ieee80211req *ireq)
1805 {
1806         struct ieee80211com *ic = vap->iv_ic;
1807         struct ieee80211_wme_state *wme = &ic->ic_wme;
1808         struct wmeParams *wmep, *chanp;
1809         int isbss, ac, aggrmode;
1810
1811         if ((ic->ic_caps & IEEE80211_C_WME) == 0)
1812                 return EOPNOTSUPP;
1813
1814         isbss = (ireq->i_len & IEEE80211_WMEPARAM_BSS);
1815         ac = (ireq->i_len & IEEE80211_WMEPARAM_VAL);
1816         aggrmode = (wme->wme_flags & WME_F_AGGRMODE);
1817         if (ac >= WME_NUM_AC)
1818                 ac = WME_AC_BE;
1819         if (isbss) {
1820                 chanp = &wme->wme_bssChanParams.cap_wmeParams[ac];
1821                 wmep = &wme->wme_wmeBssChanParams.cap_wmeParams[ac];
1822         } else {
1823                 chanp = &wme->wme_chanParams.cap_wmeParams[ac];
1824                 wmep = &wme->wme_wmeChanParams.cap_wmeParams[ac];
1825         }
1826         switch (ireq->i_type) {
1827         case IEEE80211_IOC_WME_CWMIN:           /* WME: CWmin */
1828                 wmep->wmep_logcwmin = ireq->i_val;
1829                 if (!isbss || !aggrmode)
1830                         chanp->wmep_logcwmin = ireq->i_val;
1831                 break;
1832         case IEEE80211_IOC_WME_CWMAX:           /* WME: CWmax */
1833                 wmep->wmep_logcwmax = ireq->i_val;
1834                 if (!isbss || !aggrmode)
1835                         chanp->wmep_logcwmax = ireq->i_val;
1836                 break;
1837         case IEEE80211_IOC_WME_AIFS:            /* WME: AIFS */
1838                 wmep->wmep_aifsn = ireq->i_val;
1839                 if (!isbss || !aggrmode)
1840                         chanp->wmep_aifsn = ireq->i_val;
1841                 break;
1842         case IEEE80211_IOC_WME_TXOPLIMIT:       /* WME: txops limit */
1843                 wmep->wmep_txopLimit = ireq->i_val;
1844                 if (!isbss || !aggrmode)
1845                         chanp->wmep_txopLimit = ireq->i_val;
1846                 break;
1847         case IEEE80211_IOC_WME_ACM:             /* WME: ACM (bss only) */
1848                 wmep->wmep_acm = ireq->i_val;
1849                 if (!aggrmode)
1850                         chanp->wmep_acm = ireq->i_val;
1851                 break;
1852         case IEEE80211_IOC_WME_ACKPOLICY:       /* WME: ACK policy (!bss only)*/
1853                 wmep->wmep_noackPolicy = chanp->wmep_noackPolicy =
1854                         (ireq->i_val) == 0;
1855                 break;
1856         }
1857         ieee80211_wme_updateparams(vap);
1858         return 0;
1859 }
1860
1861 static int
1862 find11gchannel(struct ieee80211com *ic, int start, int freq)
1863 {
1864         const struct ieee80211_channel *c;
1865         int i;
1866
1867         for (i = start+1; i < ic->ic_nchans; i++) {
1868                 c = &ic->ic_channels[i];
1869                 if (c->ic_freq == freq && IEEE80211_IS_CHAN_ANYG(c))
1870                         return 1;
1871         }
1872         /* NB: should not be needed but in case things are mis-sorted */
1873         for (i = 0; i < start; i++) {
1874                 c = &ic->ic_channels[i];
1875                 if (c->ic_freq == freq && IEEE80211_IS_CHAN_ANYG(c))
1876                         return 1;
1877         }
1878         return 0;
1879 }
1880
1881 static struct ieee80211_channel *
1882 findchannel(struct ieee80211com *ic, int ieee, int mode)
1883 {
1884         static const u_int chanflags[IEEE80211_MODE_MAX] = {
1885             [IEEE80211_MODE_AUTO]       = 0,
1886             [IEEE80211_MODE_11A]        = IEEE80211_CHAN_A,
1887             [IEEE80211_MODE_11B]        = IEEE80211_CHAN_B,
1888             [IEEE80211_MODE_11G]        = IEEE80211_CHAN_G,
1889             [IEEE80211_MODE_FH]         = IEEE80211_CHAN_FHSS,
1890             [IEEE80211_MODE_TURBO_A]    = IEEE80211_CHAN_108A,
1891             [IEEE80211_MODE_TURBO_G]    = IEEE80211_CHAN_108G,
1892             [IEEE80211_MODE_STURBO_A]   = IEEE80211_CHAN_STURBO,
1893             [IEEE80211_MODE_HALF]       = IEEE80211_CHAN_HALF,
1894             [IEEE80211_MODE_QUARTER]    = IEEE80211_CHAN_QUARTER,
1895             /* NB: handled specially below */
1896             [IEEE80211_MODE_11NA]       = IEEE80211_CHAN_A,
1897             [IEEE80211_MODE_11NG]       = IEEE80211_CHAN_G,
1898             [IEEE80211_MODE_VHT_5GHZ]   = IEEE80211_CHAN_A,
1899             [IEEE80211_MODE_VHT_2GHZ]   = IEEE80211_CHAN_G,
1900         };
1901         u_int modeflags;
1902         int i;
1903
1904         modeflags = chanflags[mode];
1905         for (i = 0; i < ic->ic_nchans; i++) {
1906                 struct ieee80211_channel *c = &ic->ic_channels[i];
1907
1908                 if (c->ic_ieee != ieee)
1909                         continue;
1910                 if (mode == IEEE80211_MODE_AUTO) {
1911                         /* ignore turbo channels for autoselect */
1912                         if (IEEE80211_IS_CHAN_TURBO(c))
1913                                 continue;
1914                         /*
1915                          * XXX special-case 11b/g channels so we
1916                          *     always select the g channel if both
1917                          *     are present.
1918                          * XXX prefer HT to non-HT?
1919                          */
1920                         if (!IEEE80211_IS_CHAN_B(c) ||
1921                             !find11gchannel(ic, i, c->ic_freq))
1922                                 return c;
1923                 } else {
1924                         /* must check VHT specifically */
1925                         if ((mode == IEEE80211_MODE_VHT_5GHZ ||
1926                             mode == IEEE80211_MODE_VHT_2GHZ) &&
1927                             !IEEE80211_IS_CHAN_VHT(c))
1928                                 continue;
1929
1930                         /*
1931                          * Must check HT specially - only match on HT,
1932                          * not HT+VHT channels
1933                          */
1934                         if ((mode == IEEE80211_MODE_11NA ||
1935                             mode == IEEE80211_MODE_11NG) &&
1936                             !IEEE80211_IS_CHAN_HT(c))
1937                                 continue;
1938
1939                         if ((mode == IEEE80211_MODE_11NA ||
1940                             mode == IEEE80211_MODE_11NG) &&
1941                             IEEE80211_IS_CHAN_VHT(c))
1942                                 continue;
1943
1944                         /* Check that the modeflags above match */
1945                         if ((c->ic_flags & modeflags) == modeflags)
1946                                 return c;
1947                 }
1948         }
1949         return NULL;
1950 }
1951
1952 /*
1953  * Check the specified against any desired mode (aka netband).
1954  * This is only used (presently) when operating in hostap mode
1955  * to enforce consistency.
1956  */
1957 static int
1958 check_mode_consistency(const struct ieee80211_channel *c, int mode)
1959 {
1960         KASSERT(c != IEEE80211_CHAN_ANYC, ("oops, no channel"));
1961
1962         switch (mode) {
1963         case IEEE80211_MODE_11B:
1964                 return (IEEE80211_IS_CHAN_B(c));
1965         case IEEE80211_MODE_11G:
1966                 return (IEEE80211_IS_CHAN_ANYG(c) && !IEEE80211_IS_CHAN_HT(c));
1967         case IEEE80211_MODE_11A:
1968                 return (IEEE80211_IS_CHAN_A(c) && !IEEE80211_IS_CHAN_HT(c));
1969         case IEEE80211_MODE_STURBO_A:
1970                 return (IEEE80211_IS_CHAN_STURBO(c));
1971         case IEEE80211_MODE_11NA:
1972                 return (IEEE80211_IS_CHAN_HTA(c));
1973         case IEEE80211_MODE_11NG:
1974                 return (IEEE80211_IS_CHAN_HTG(c));
1975         }
1976         return 1;
1977
1978 }
1979
1980 /*
1981  * Common code to set the current channel.  If the device
1982  * is up and running this may result in an immediate channel
1983  * change or a kick of the state machine.
1984  */
1985 static int
1986 setcurchan(struct ieee80211vap *vap, struct ieee80211_channel *c)
1987 {
1988         struct ieee80211com *ic = vap->iv_ic;
1989         int error;
1990
1991         if (c != IEEE80211_CHAN_ANYC) {
1992                 if (IEEE80211_IS_CHAN_RADAR(c))
1993                         return EBUSY;   /* XXX better code? */
1994                 if (vap->iv_opmode == IEEE80211_M_HOSTAP) {
1995                         if (IEEE80211_IS_CHAN_NOHOSTAP(c))
1996                                 return EINVAL;
1997                         if (!check_mode_consistency(c, vap->iv_des_mode))
1998                                 return EINVAL;
1999                 } else if (vap->iv_opmode == IEEE80211_M_IBSS) {
2000                         if (IEEE80211_IS_CHAN_NOADHOC(c))
2001                                 return EINVAL;
2002                 }
2003                 if ((vap->iv_state == IEEE80211_S_RUN || vap->iv_state == IEEE80211_S_SLEEP) &&
2004                     vap->iv_bss->ni_chan == c)
2005                         return 0;       /* NB: nothing to do */
2006         }
2007         vap->iv_des_chan = c;
2008
2009         error = 0;
2010         if (vap->iv_opmode == IEEE80211_M_MONITOR &&
2011             vap->iv_des_chan != IEEE80211_CHAN_ANYC) {
2012                 /*
2013                  * Monitor mode can switch directly.
2014                  */
2015                 if (IFNET_IS_UP_RUNNING(vap->iv_ifp)) {
2016                         /* XXX need state machine for other vap's to follow */
2017                         ieee80211_setcurchan(ic, vap->iv_des_chan);
2018                         vap->iv_bss->ni_chan = ic->ic_curchan;
2019                 } else {
2020                         ic->ic_curchan = vap->iv_des_chan;
2021                         ic->ic_rt = ieee80211_get_ratetable(ic->ic_curchan);
2022                 }
2023         } else {
2024                 /*
2025                  * Need to go through the state machine in case we
2026                  * need to reassociate or the like.  The state machine
2027                  * will pickup the desired channel and avoid scanning.
2028                  */
2029                 if (IS_UP_AUTO(vap))
2030                         ieee80211_new_state(vap, IEEE80211_S_SCAN, 0);
2031                 else if (vap->iv_des_chan != IEEE80211_CHAN_ANYC) {
2032                         /*
2033                          * When not up+running and a real channel has
2034                          * been specified fix the current channel so
2035                          * there is immediate feedback; e.g. via ifconfig.
2036                          */
2037                         ic->ic_curchan = vap->iv_des_chan;
2038                         ic->ic_rt = ieee80211_get_ratetable(ic->ic_curchan);
2039                 }
2040         }
2041         return error;
2042 }
2043
2044 /*
2045  * Old api for setting the current channel; this is
2046  * deprecated because channel numbers are ambiguous.
2047  */
2048 static int
2049 ieee80211_ioctl_setchannel(struct ieee80211vap *vap,
2050         const struct ieee80211req *ireq)
2051 {
2052         struct ieee80211com *ic = vap->iv_ic;
2053         struct ieee80211_channel *c;
2054
2055         /* XXX 0xffff overflows 16-bit signed */
2056         if (ireq->i_val == 0 ||
2057             ireq->i_val == (int16_t) IEEE80211_CHAN_ANY) {
2058                 c = IEEE80211_CHAN_ANYC;
2059         } else {
2060                 struct ieee80211_channel *c2;
2061
2062                 c = findchannel(ic, ireq->i_val, vap->iv_des_mode);
2063                 if (c == NULL) {
2064                         c = findchannel(ic, ireq->i_val,
2065                                 IEEE80211_MODE_AUTO);
2066                         if (c == NULL)
2067                                 return EINVAL;
2068                 }
2069
2070                 /*
2071                  * Fine tune channel selection based on desired mode:
2072                  *   if 11b is requested, find the 11b version of any
2073                  *      11g channel returned,
2074                  *   if static turbo, find the turbo version of any
2075                  *      11a channel return,
2076                  *   if 11na is requested, find the ht version of any
2077                  *      11a channel returned,
2078                  *   if 11ng is requested, find the ht version of any
2079                  *      11g channel returned,
2080                  *   if 11ac is requested, find the 11ac version
2081                  *      of any 11a/11na channel returned,
2082                  *   (TBD) 11acg (2GHz VHT)
2083                  *   otherwise we should be ok with what we've got.
2084                  */
2085                 switch (vap->iv_des_mode) {
2086                 case IEEE80211_MODE_11B:
2087                         if (IEEE80211_IS_CHAN_ANYG(c)) {
2088                                 c2 = findchannel(ic, ireq->i_val,
2089                                         IEEE80211_MODE_11B);
2090                                 /* NB: should not happen, =>'s 11g w/o 11b */
2091                                 if (c2 != NULL)
2092                                         c = c2;
2093                         }
2094                         break;
2095                 case IEEE80211_MODE_TURBO_A:
2096                         if (IEEE80211_IS_CHAN_A(c)) {
2097                                 c2 = findchannel(ic, ireq->i_val,
2098                                         IEEE80211_MODE_TURBO_A);
2099                                 if (c2 != NULL)
2100                                         c = c2;
2101                         }
2102                         break;
2103                 case IEEE80211_MODE_11NA:
2104                         if (IEEE80211_IS_CHAN_A(c)) {
2105                                 c2 = findchannel(ic, ireq->i_val,
2106                                         IEEE80211_MODE_11NA);
2107                                 if (c2 != NULL)
2108                                         c = c2;
2109                         }
2110                         break;
2111                 case IEEE80211_MODE_11NG:
2112                         if (IEEE80211_IS_CHAN_ANYG(c)) {
2113                                 c2 = findchannel(ic, ireq->i_val,
2114                                         IEEE80211_MODE_11NG);
2115                                 if (c2 != NULL)
2116                                         c = c2;
2117                         }
2118                         break;
2119                 case IEEE80211_MODE_VHT_2GHZ:
2120                         printf("%s: TBD\n", __func__);
2121                         break;
2122                 case IEEE80211_MODE_VHT_5GHZ:
2123                         if (IEEE80211_IS_CHAN_A(c)) {
2124                                 c2 = findchannel(ic, ireq->i_val,
2125                                         IEEE80211_MODE_VHT_5GHZ);
2126                                 if (c2 != NULL)
2127                                         c = c2;
2128                         }
2129                         break;
2130                 default:                /* NB: no static turboG */
2131                         break;
2132                 }
2133         }
2134         return setcurchan(vap, c);
2135 }
2136
2137 /*
2138  * New/current api for setting the current channel; a complete
2139  * channel description is provide so there is no ambiguity in
2140  * identifying the channel.
2141  */
2142 static int
2143 ieee80211_ioctl_setcurchan(struct ieee80211vap *vap,
2144         const struct ieee80211req *ireq)
2145 {
2146         struct ieee80211com *ic = vap->iv_ic;
2147         struct ieee80211_channel chan, *c;
2148         int error;
2149
2150         if (ireq->i_len != sizeof(chan))
2151                 return EINVAL;
2152         error = copyin(ireq->i_data, &chan, sizeof(chan));
2153         if (error != 0)
2154                 return error;
2155
2156         /* XXX 0xffff overflows 16-bit signed */
2157         if (chan.ic_freq == 0 || chan.ic_freq == IEEE80211_CHAN_ANY) {
2158                 c = IEEE80211_CHAN_ANYC;
2159         } else {
2160                 c = ieee80211_find_channel(ic, chan.ic_freq, chan.ic_flags);
2161                 if (c == NULL)
2162                         return EINVAL;
2163         }
2164         return setcurchan(vap, c);
2165 }
2166
2167 static int
2168 ieee80211_ioctl_setregdomain(struct ieee80211vap *vap,
2169         const struct ieee80211req *ireq)
2170 {
2171         struct ieee80211_regdomain_req *reg;
2172         int nchans, error;
2173
2174         nchans = 1 + ((ireq->i_len - sizeof(struct ieee80211_regdomain_req)) /
2175             sizeof(struct ieee80211_channel));
2176         if (!(1 <= nchans && nchans <= IEEE80211_CHAN_MAX)) {
2177                 IEEE80211_DPRINTF(vap, IEEE80211_MSG_IOCTL,
2178                     "%s: bad # chans, i_len %d nchans %d\n", __func__,
2179                     ireq->i_len, nchans);
2180                 return EINVAL;
2181         }
2182         reg = (struct ieee80211_regdomain_req *)
2183             IEEE80211_MALLOC(IEEE80211_REGDOMAIN_SIZE(nchans), M_TEMP,
2184               IEEE80211_M_NOWAIT | IEEE80211_M_ZERO);
2185         if (reg == NULL) {
2186                 IEEE80211_DPRINTF(vap, IEEE80211_MSG_IOCTL,
2187                     "%s: no memory, nchans %d\n", __func__, nchans);
2188                 return ENOMEM;
2189         }
2190         error = copyin(ireq->i_data, reg, IEEE80211_REGDOMAIN_SIZE(nchans));
2191         if (error == 0) {
2192                 /* NB: validate inline channel count against storage size */
2193                 if (reg->chaninfo.ic_nchans != nchans) {
2194                         IEEE80211_DPRINTF(vap, IEEE80211_MSG_IOCTL,
2195                             "%s: chan cnt mismatch, %d != %d\n", __func__,
2196                                 reg->chaninfo.ic_nchans, nchans);
2197                         error = EINVAL;
2198                 } else
2199                         error = ieee80211_setregdomain(vap, reg);
2200         }
2201         IEEE80211_FREE(reg, M_TEMP);
2202
2203         return (error == 0 ? ENETRESET : error);
2204 }
2205
2206 static int
2207 checkrate(const struct ieee80211_rateset *rs, int rate)
2208 {
2209         int i;
2210
2211         if (rate == IEEE80211_FIXED_RATE_NONE)
2212                 return 1;
2213         for (i = 0; i < rs->rs_nrates; i++)
2214                 if ((rs->rs_rates[i] & IEEE80211_RATE_VAL) == rate)
2215                         return 1;
2216         return 0;
2217 }
2218
2219 static int
2220 checkmcs(const struct ieee80211_htrateset *rs, int mcs)
2221 {
2222         int rate_val = IEEE80211_RV(mcs);
2223         int i;
2224
2225         if (mcs == IEEE80211_FIXED_RATE_NONE)
2226                 return 1;
2227         if ((mcs & IEEE80211_RATE_MCS) == 0)    /* MCS always have 0x80 set */
2228                 return 0;
2229         for (i = 0; i < rs->rs_nrates; i++)
2230                 if (IEEE80211_RV(rs->rs_rates[i]) == rate_val)
2231                         return 1;
2232         return 0;
2233 }
2234
2235 static int
2236 ieee80211_ioctl_setroam(struct ieee80211vap *vap,
2237         const struct ieee80211req *ireq)
2238 {
2239         struct ieee80211com *ic = vap->iv_ic;
2240         struct ieee80211_roamparams_req *parms;
2241         struct ieee80211_roamparam *src, *dst;
2242         const struct ieee80211_htrateset *rs_ht;
2243         const struct ieee80211_rateset *rs;
2244         int changed, error, mode, is11n, nmodes;
2245
2246         if (ireq->i_len != sizeof(vap->iv_roamparms))
2247                 return EINVAL;
2248
2249         parms = IEEE80211_MALLOC(sizeof(*parms), M_TEMP,
2250             IEEE80211_M_NOWAIT | IEEE80211_M_ZERO);
2251         if (parms == NULL)
2252                 return ENOMEM;
2253
2254         error = copyin(ireq->i_data, parms, ireq->i_len);
2255         if (error != 0)
2256                 goto fail;
2257
2258         changed = 0;
2259         nmodes = IEEE80211_MODE_MAX;
2260
2261         /* validate parameters and check if anything changed */
2262         for (mode = IEEE80211_MODE_11A; mode < nmodes; mode++) {
2263                 if (isclr(ic->ic_modecaps, mode))
2264                         continue;
2265                 src = &parms->params[mode];
2266                 dst = &vap->iv_roamparms[mode];
2267                 rs = &ic->ic_sup_rates[mode];   /* NB: 11n maps to legacy */
2268                 rs_ht = &ic->ic_sup_htrates;
2269                 is11n = (mode == IEEE80211_MODE_11NA ||
2270                          mode == IEEE80211_MODE_11NG);
2271                 /* XXX TODO: 11ac */
2272                 if (src->rate != dst->rate) {
2273                         if (!checkrate(rs, src->rate) &&
2274                             (!is11n || !checkmcs(rs_ht, src->rate))) {
2275                                 error = EINVAL;
2276                                 goto fail;
2277                         }
2278                         changed++;
2279                 }
2280                 if (src->rssi != dst->rssi)
2281                         changed++;
2282         }
2283         if (changed) {
2284                 /*
2285                  * Copy new parameters in place and notify the
2286                  * driver so it can push state to the device.
2287                  */
2288                 /* XXX locking? */
2289                 for (mode = IEEE80211_MODE_11A; mode < nmodes; mode++) {
2290                         if (isset(ic->ic_modecaps, mode))
2291                                 vap->iv_roamparms[mode] = parms->params[mode];
2292                 }
2293
2294                 if (vap->iv_roaming == IEEE80211_ROAMING_DEVICE)
2295                         error = ERESTART;
2296         }
2297
2298 fail:   IEEE80211_FREE(parms, M_TEMP);
2299         return error;
2300 }
2301
2302 static int
2303 ieee80211_ioctl_settxparams(struct ieee80211vap *vap,
2304         const struct ieee80211req *ireq)
2305 {
2306         struct ieee80211com *ic = vap->iv_ic;
2307         struct ieee80211_txparams_req parms;    /* XXX stack use? */
2308         struct ieee80211_txparam *src, *dst;
2309         const struct ieee80211_htrateset *rs_ht;
2310         const struct ieee80211_rateset *rs;
2311         int error, mode, changed, is11n, nmodes;
2312
2313         /* NB: accept short requests for backwards compat */
2314         if (ireq->i_len > sizeof(parms))
2315                 return EINVAL;
2316         error = copyin(ireq->i_data, &parms, ireq->i_len);
2317         if (error != 0)
2318                 return error;
2319         nmodes = ireq->i_len / sizeof(struct ieee80211_txparam);
2320         changed = 0;
2321         /* validate parameters and check if anything changed */
2322         for (mode = IEEE80211_MODE_11A; mode < nmodes; mode++) {
2323                 if (isclr(ic->ic_modecaps, mode))
2324                         continue;
2325                 src = &parms.params[mode];
2326                 dst = &vap->iv_txparms[mode];
2327                 rs = &ic->ic_sup_rates[mode];   /* NB: 11n maps to legacy */
2328                 rs_ht = &ic->ic_sup_htrates;
2329                 is11n = (mode == IEEE80211_MODE_11NA ||
2330                          mode == IEEE80211_MODE_11NG);
2331                 if (src->ucastrate != dst->ucastrate) {
2332                         if (!checkrate(rs, src->ucastrate) &&
2333                             (!is11n || !checkmcs(rs_ht, src->ucastrate)))
2334                                 return EINVAL;
2335                         changed++;
2336                 }
2337                 if (src->mcastrate != dst->mcastrate) {
2338                         if (!checkrate(rs, src->mcastrate) &&
2339                             (!is11n || !checkmcs(rs_ht, src->mcastrate)))
2340                                 return EINVAL;
2341                         changed++;
2342                 }
2343                 if (src->mgmtrate != dst->mgmtrate) {
2344                         if (!checkrate(rs, src->mgmtrate) &&
2345                             (!is11n || !checkmcs(rs_ht, src->mgmtrate)))
2346                                 return EINVAL;
2347                         changed++;
2348                 }
2349                 if (src->maxretry != dst->maxretry)     /* NB: no bounds */
2350                         changed++;
2351         }
2352         if (changed) {
2353                 /*
2354                  * Copy new parameters in place and notify the
2355                  * driver so it can push state to the device.
2356                  */
2357                 for (mode = IEEE80211_MODE_11A; mode < nmodes; mode++) {
2358                         if (isset(ic->ic_modecaps, mode))
2359                                 vap->iv_txparms[mode] = parms.params[mode];
2360                 }
2361                 /* XXX could be more intelligent,
2362                    e.g. don't reset if setting not being used */
2363                 return ENETRESET;
2364         }
2365         return 0;
2366 }
2367
2368 /*
2369  * Application Information Element support.
2370  */
2371 static int
2372 setappie(struct ieee80211_appie **aie, const struct ieee80211req *ireq)
2373 {
2374         struct ieee80211_appie *app = *aie;
2375         struct ieee80211_appie *napp;
2376         int error;
2377
2378         if (ireq->i_len == 0) {         /* delete any existing ie */
2379                 if (app != NULL) {
2380                         *aie = NULL;    /* XXX racey */
2381                         IEEE80211_FREE(app, M_80211_NODE_IE);
2382                 }
2383                 return 0;
2384         }
2385         if (!(2 <= ireq->i_len && ireq->i_len <= IEEE80211_MAX_APPIE))
2386                 return EINVAL;
2387         /*
2388          * Allocate a new appie structure and copy in the user data.
2389          * When done swap in the new structure.  Note that we do not
2390          * guard against users holding a ref to the old structure;
2391          * this must be handled outside this code.
2392          *
2393          * XXX bad bad bad
2394          */
2395         napp = (struct ieee80211_appie *) IEEE80211_MALLOC(
2396             sizeof(struct ieee80211_appie) + ireq->i_len, M_80211_NODE_IE,
2397             IEEE80211_M_NOWAIT);
2398         if (napp == NULL)
2399                 return ENOMEM;
2400         /* XXX holding ic lock */
2401         error = copyin(ireq->i_data, napp->ie_data, ireq->i_len);
2402         if (error) {
2403                 IEEE80211_FREE(napp, M_80211_NODE_IE);
2404                 return error;
2405         }
2406         napp->ie_len = ireq->i_len;
2407         *aie = napp;
2408         if (app != NULL)
2409                 IEEE80211_FREE(app, M_80211_NODE_IE);
2410         return 0;
2411 }
2412
2413 static void
2414 setwparsnie(struct ieee80211vap *vap, uint8_t *ie, int space)
2415 {
2416         /* validate data is present as best we can */
2417         if (space == 0 || 2+ie[1] > space)
2418                 return;
2419         if (ie[0] == IEEE80211_ELEMID_VENDOR)
2420                 vap->iv_wpa_ie = ie;
2421         else if (ie[0] == IEEE80211_ELEMID_RSN)
2422                 vap->iv_rsn_ie = ie;
2423 }
2424
2425 static int
2426 ieee80211_ioctl_setappie_locked(struct ieee80211vap *vap,
2427         const struct ieee80211req *ireq, int fc0)
2428 {
2429         int error;
2430
2431         IEEE80211_LOCK_ASSERT(vap->iv_ic);
2432
2433         switch (fc0 & IEEE80211_FC0_SUBTYPE_MASK) {
2434         case IEEE80211_FC0_SUBTYPE_BEACON:
2435                 if (vap->iv_opmode != IEEE80211_M_HOSTAP &&
2436                     vap->iv_opmode != IEEE80211_M_IBSS) {
2437                         error = EINVAL;
2438                         break;
2439                 }
2440                 error = setappie(&vap->iv_appie_beacon, ireq);
2441                 if (error == 0)
2442                         ieee80211_beacon_notify(vap, IEEE80211_BEACON_APPIE);
2443                 break;
2444         case IEEE80211_FC0_SUBTYPE_PROBE_RESP:
2445                 error = setappie(&vap->iv_appie_proberesp, ireq);
2446                 break;
2447         case IEEE80211_FC0_SUBTYPE_ASSOC_RESP:
2448                 if (vap->iv_opmode == IEEE80211_M_HOSTAP)
2449                         error = setappie(&vap->iv_appie_assocresp, ireq);
2450                 else
2451                         error = EINVAL;
2452                 break;
2453         case IEEE80211_FC0_SUBTYPE_PROBE_REQ:
2454                 error = setappie(&vap->iv_appie_probereq, ireq);
2455                 break;
2456         case IEEE80211_FC0_SUBTYPE_ASSOC_REQ:
2457                 if (vap->iv_opmode == IEEE80211_M_STA)
2458                         error = setappie(&vap->iv_appie_assocreq, ireq);
2459                 else
2460                         error = EINVAL;
2461                 break;
2462         case (IEEE80211_APPIE_WPA & IEEE80211_FC0_SUBTYPE_MASK):
2463                 error = setappie(&vap->iv_appie_wpa, ireq);
2464                 if (error == 0) {
2465                         /*
2466                          * Must split single blob of data into separate
2467                          * WPA and RSN ie's because they go in different
2468                          * locations in the mgt frames.
2469                          * XXX use IEEE80211_IOC_WPA2 so user code does split
2470                          */
2471                         vap->iv_wpa_ie = NULL;
2472                         vap->iv_rsn_ie = NULL;
2473                         if (vap->iv_appie_wpa != NULL) {
2474                                 struct ieee80211_appie *appie =
2475                                     vap->iv_appie_wpa;
2476                                 uint8_t *data = appie->ie_data;
2477
2478                                 /* XXX ie length validate is painful, cheat */
2479                                 setwparsnie(vap, data, appie->ie_len);
2480                                 setwparsnie(vap, data + 2 + data[1],
2481                                     appie->ie_len - (2 + data[1]));
2482                         }
2483                         if (vap->iv_opmode == IEEE80211_M_HOSTAP ||
2484                             vap->iv_opmode == IEEE80211_M_IBSS) {
2485                                 /*
2486                                  * Must rebuild beacon frame as the update
2487                                  * mechanism doesn't handle WPA/RSN ie's.
2488                                  * Could extend it but it doesn't normally
2489                                  * change; this is just to deal with hostapd
2490                                  * plumbing the ie after the interface is up.
2491                                  */
2492                                 error = ENETRESET;
2493                         }
2494                 }
2495                 break;
2496         default:
2497                 error = EINVAL;
2498                 break;
2499         }
2500         return error;
2501 }
2502
2503 static int
2504 ieee80211_ioctl_setappie(struct ieee80211vap *vap,
2505         const struct ieee80211req *ireq)
2506 {
2507         struct ieee80211com *ic = vap->iv_ic;
2508         int error;
2509         uint8_t fc0;
2510
2511         fc0 = ireq->i_val & 0xff;
2512         if ((fc0 & IEEE80211_FC0_TYPE_MASK) != IEEE80211_FC0_TYPE_MGT)
2513                 return EINVAL;
2514         /* NB: could check iv_opmode and reject but hardly worth the effort */
2515         IEEE80211_LOCK(ic);
2516         error = ieee80211_ioctl_setappie_locked(vap, ireq, fc0);
2517         IEEE80211_UNLOCK(ic);
2518         return error;
2519 }
2520
2521 static int
2522 ieee80211_ioctl_chanswitch(struct ieee80211vap *vap, struct ieee80211req *ireq)
2523 {
2524         struct ieee80211com *ic = vap->iv_ic;
2525         struct ieee80211_chanswitch_req csr;
2526         struct ieee80211_channel *c;
2527         int error;
2528
2529         if (ireq->i_len != sizeof(csr))
2530                 return EINVAL;
2531         error = copyin(ireq->i_data, &csr, sizeof(csr));
2532         if (error != 0)
2533                 return error;
2534         /* XXX adhoc mode not supported */
2535         if (vap->iv_opmode != IEEE80211_M_HOSTAP ||
2536             (vap->iv_flags & IEEE80211_F_DOTH) == 0)
2537                 return EOPNOTSUPP;
2538         c = ieee80211_find_channel(ic,
2539             csr.csa_chan.ic_freq, csr.csa_chan.ic_flags);
2540         if (c == NULL)
2541                 return ENOENT;
2542         IEEE80211_LOCK(ic);
2543         if ((ic->ic_flags & IEEE80211_F_CSAPENDING) == 0)
2544                 ieee80211_csa_startswitch(ic, c, csr.csa_mode, csr.csa_count);
2545         else if (csr.csa_count == 0)
2546                 ieee80211_csa_cancelswitch(ic);
2547         else
2548                 error = EBUSY;
2549         IEEE80211_UNLOCK(ic);
2550         return error;
2551 }
2552
2553 static int
2554 ieee80211_scanreq(struct ieee80211vap *vap, struct ieee80211_scan_req *sr)
2555 {
2556 #define IEEE80211_IOC_SCAN_FLAGS \
2557         (IEEE80211_IOC_SCAN_NOPICK | IEEE80211_IOC_SCAN_ACTIVE | \
2558          IEEE80211_IOC_SCAN_PICK1ST | IEEE80211_IOC_SCAN_BGSCAN | \
2559          IEEE80211_IOC_SCAN_ONCE | IEEE80211_IOC_SCAN_NOBCAST | \
2560          IEEE80211_IOC_SCAN_NOJOIN | IEEE80211_IOC_SCAN_FLUSH | \
2561          IEEE80211_IOC_SCAN_CHECK)
2562         struct ieee80211com *ic = vap->iv_ic;
2563         int error, i;
2564
2565         /* convert duration */
2566         if (sr->sr_duration == IEEE80211_IOC_SCAN_FOREVER)
2567                 sr->sr_duration = IEEE80211_SCAN_FOREVER;
2568         else {
2569                 if (sr->sr_duration < IEEE80211_IOC_SCAN_DURATION_MIN ||
2570                     sr->sr_duration > IEEE80211_IOC_SCAN_DURATION_MAX)
2571                         return EINVAL;
2572                 sr->sr_duration = msecs_to_ticks(sr->sr_duration);
2573         }
2574         /* convert min/max channel dwell */
2575         if (sr->sr_mindwell != 0)
2576                 sr->sr_mindwell = msecs_to_ticks(sr->sr_mindwell);
2577         if (sr->sr_maxdwell != 0)
2578                 sr->sr_maxdwell = msecs_to_ticks(sr->sr_maxdwell);
2579         /* NB: silently reduce ssid count to what is supported */
2580         if (sr->sr_nssid > IEEE80211_SCAN_MAX_SSID)
2581                 sr->sr_nssid = IEEE80211_SCAN_MAX_SSID;
2582         for (i = 0; i < sr->sr_nssid; i++)
2583                 if (sr->sr_ssid[i].len > IEEE80211_NWID_LEN)
2584                         return EINVAL;
2585         /* cleanse flags just in case, could reject if invalid flags */
2586         sr->sr_flags &= IEEE80211_IOC_SCAN_FLAGS;
2587         /*
2588          * Add an implicit NOPICK if the vap is not marked UP.  This
2589          * allows applications to scan without joining a bss (or picking
2590          * a channel and setting up a bss) and without forcing manual
2591          * roaming mode--you just need to mark the parent device UP.
2592          */
2593         if ((vap->iv_ifp->if_flags & IFF_UP) == 0)
2594                 sr->sr_flags |= IEEE80211_IOC_SCAN_NOPICK;
2595
2596         IEEE80211_DPRINTF(vap, IEEE80211_MSG_SCAN,
2597             "%s: flags 0x%x%s duration 0x%x mindwell %u maxdwell %u nssid %d\n",
2598             __func__, sr->sr_flags,
2599             (vap->iv_ifp->if_flags & IFF_UP) == 0 ? " (!IFF_UP)" : "",
2600             sr->sr_duration, sr->sr_mindwell, sr->sr_maxdwell, sr->sr_nssid);
2601         /*
2602          * If we are in INIT state then the driver has never had a chance
2603          * to setup hardware state to do a scan; we must use the state
2604          * machine to get us up to the SCAN state but once we reach SCAN
2605          * state we then want to use the supplied params.  Stash the
2606          * parameters in the vap and mark IEEE80211_FEXT_SCANREQ; the
2607          * state machines will recognize this and use the stashed params
2608          * to issue the scan request.
2609          *
2610          * Otherwise just invoke the scan machinery directly.
2611          */
2612         IEEE80211_LOCK(ic);
2613         if (ic->ic_nrunning == 0) {
2614                 IEEE80211_UNLOCK(ic);
2615                 return ENXIO;
2616         }
2617
2618         if (vap->iv_state == IEEE80211_S_INIT) {
2619                 /* NB: clobbers previous settings */
2620                 vap->iv_scanreq_flags = sr->sr_flags;
2621                 vap->iv_scanreq_duration = sr->sr_duration;
2622                 vap->iv_scanreq_nssid = sr->sr_nssid;
2623                 for (i = 0; i < sr->sr_nssid; i++) {
2624                         vap->iv_scanreq_ssid[i].len = sr->sr_ssid[i].len;
2625                         memcpy(vap->iv_scanreq_ssid[i].ssid,
2626                             sr->sr_ssid[i].ssid, sr->sr_ssid[i].len);
2627                 }
2628                 vap->iv_flags_ext |= IEEE80211_FEXT_SCANREQ;
2629                 IEEE80211_UNLOCK(ic);
2630                 ieee80211_new_state(vap, IEEE80211_S_SCAN, 0);
2631         } else {
2632                 vap->iv_flags_ext &= ~IEEE80211_FEXT_SCANREQ;
2633                 IEEE80211_UNLOCK(ic);
2634                 if (sr->sr_flags & IEEE80211_IOC_SCAN_CHECK) {
2635                         error = ieee80211_check_scan(vap, sr->sr_flags,
2636                             sr->sr_duration, sr->sr_mindwell, sr->sr_maxdwell,
2637                             sr->sr_nssid,
2638                             /* NB: cheat, we assume structures are compatible */
2639                             (const struct ieee80211_scan_ssid *) &sr->sr_ssid[0]);
2640                 } else {
2641                         error = ieee80211_start_scan(vap, sr->sr_flags,
2642                             sr->sr_duration, sr->sr_mindwell, sr->sr_maxdwell,
2643                             sr->sr_nssid,
2644                             /* NB: cheat, we assume structures are compatible */
2645                             (const struct ieee80211_scan_ssid *) &sr->sr_ssid[0]);
2646                 }
2647                 if (error == 0)
2648                         return EINPROGRESS;
2649         }
2650         return 0;
2651 #undef IEEE80211_IOC_SCAN_FLAGS
2652 }
2653
2654 static int
2655 ieee80211_ioctl_scanreq(struct ieee80211vap *vap, struct ieee80211req *ireq)
2656 {
2657         struct ieee80211_scan_req *sr;
2658         int error;
2659
2660         if (ireq->i_len != sizeof(*sr))
2661                 return EINVAL;
2662         sr = IEEE80211_MALLOC(sizeof(*sr), M_TEMP,
2663              IEEE80211_M_NOWAIT | IEEE80211_M_ZERO);
2664         if (sr == NULL)
2665                 return ENOMEM;
2666         error = copyin(ireq->i_data, sr, sizeof(*sr));
2667         if (error != 0)
2668                 goto bad;
2669         error = ieee80211_scanreq(vap, sr);
2670 bad:
2671         IEEE80211_FREE(sr, M_TEMP);
2672         return error;
2673 }
2674
2675 static int
2676 ieee80211_ioctl_setstavlan(struct ieee80211vap *vap, struct ieee80211req *ireq)
2677 {
2678         struct ieee80211_node *ni;
2679         struct ieee80211req_sta_vlan vlan;
2680         int error;
2681
2682         if (ireq->i_len != sizeof(vlan))
2683                 return EINVAL;
2684         error = copyin(ireq->i_data, &vlan, sizeof(vlan));
2685         if (error != 0)
2686                 return error;
2687         if (!IEEE80211_ADDR_EQ(vlan.sv_macaddr, zerobssid)) {
2688                 ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap,
2689                     vlan.sv_macaddr);
2690                 if (ni == NULL)
2691                         return ENOENT;
2692         } else
2693                 ni = ieee80211_ref_node(vap->iv_bss);
2694         ni->ni_vlan = vlan.sv_vlan;
2695         ieee80211_free_node(ni);
2696         return error;
2697 }
2698
2699 static int
2700 isvap11g(const struct ieee80211vap *vap)
2701 {
2702         const struct ieee80211_node *bss = vap->iv_bss;
2703         return bss->ni_chan != IEEE80211_CHAN_ANYC &&
2704             IEEE80211_IS_CHAN_ANYG(bss->ni_chan);
2705 }
2706
2707 static int
2708 isvapht(const struct ieee80211vap *vap)
2709 {
2710         const struct ieee80211_node *bss = vap->iv_bss;
2711         return bss->ni_chan != IEEE80211_CHAN_ANYC &&
2712             IEEE80211_IS_CHAN_HT(bss->ni_chan);
2713 }
2714
2715 /*
2716  * Dummy ioctl set handler so the linker set is defined.
2717  */
2718 static int
2719 dummy_ioctl_set(struct ieee80211vap *vap, struct ieee80211req *ireq)
2720 {
2721         return ENOSYS;
2722 }
2723 IEEE80211_IOCTL_SET(dummy, dummy_ioctl_set);
2724
2725 static int
2726 ieee80211_ioctl_setdefault(struct ieee80211vap *vap, struct ieee80211req *ireq)
2727 {
2728         ieee80211_ioctl_setfunc * const *set;
2729         int error;
2730
2731         SET_FOREACH(set, ieee80211_ioctl_setset) {
2732                 error = (*set)(vap, ireq);
2733                 if (error != ENOSYS)
2734                         return error;
2735         }
2736         return EINVAL;
2737 }
2738
2739 static int
2740 ieee80211_ioctl_set80211(struct ieee80211vap *vap, u_long cmd, struct ieee80211req *ireq)
2741 {
2742         struct ieee80211com *ic = vap->iv_ic;
2743         int error;
2744         const struct ieee80211_authenticator *auth;
2745         uint8_t tmpkey[IEEE80211_KEYBUF_SIZE];
2746         char tmpssid[IEEE80211_NWID_LEN];
2747         uint8_t tmpbssid[IEEE80211_ADDR_LEN];
2748         struct ieee80211_key *k;
2749         u_int kid;
2750         uint32_t flags;
2751
2752         error = 0;
2753         switch (ireq->i_type) {
2754         case IEEE80211_IOC_SSID:
2755                 if (ireq->i_val != 0 ||
2756                     ireq->i_len > IEEE80211_NWID_LEN)
2757                         return EINVAL;
2758                 error = copyin(ireq->i_data, tmpssid, ireq->i_len);
2759                 if (error)
2760                         break;
2761                 memset(vap->iv_des_ssid[0].ssid, 0, IEEE80211_NWID_LEN);
2762                 vap->iv_des_ssid[0].len = ireq->i_len;
2763                 memcpy(vap->iv_des_ssid[0].ssid, tmpssid, ireq->i_len);
2764                 vap->iv_des_nssid = (ireq->i_len > 0);
2765                 error = ENETRESET;
2766                 break;
2767         case IEEE80211_IOC_WEP:
2768                 switch (ireq->i_val) {
2769                 case IEEE80211_WEP_OFF:
2770                         vap->iv_flags &= ~IEEE80211_F_PRIVACY;
2771                         vap->iv_flags &= ~IEEE80211_F_DROPUNENC;
2772                         break;
2773                 case IEEE80211_WEP_ON:
2774                         vap->iv_flags |= IEEE80211_F_PRIVACY;
2775                         vap->iv_flags |= IEEE80211_F_DROPUNENC;
2776                         break;
2777                 case IEEE80211_WEP_MIXED:
2778                         vap->iv_flags |= IEEE80211_F_PRIVACY;
2779                         vap->iv_flags &= ~IEEE80211_F_DROPUNENC;
2780                         break;
2781                 }
2782                 error = ENETRESET;
2783                 break;
2784         case IEEE80211_IOC_WEPKEY:
2785                 kid = (u_int) ireq->i_val;
2786                 if (kid >= IEEE80211_WEP_NKID)
2787                         return EINVAL;
2788                 k = &vap->iv_nw_keys[kid];
2789                 if (ireq->i_len == 0) {
2790                         /* zero-len =>'s delete any existing key */
2791                         (void) ieee80211_crypto_delkey(vap, k);
2792                         break;
2793                 }
2794                 if (ireq->i_len > sizeof(tmpkey))
2795                         return EINVAL;
2796                 memset(tmpkey, 0, sizeof(tmpkey));
2797                 error = copyin(ireq->i_data, tmpkey, ireq->i_len);
2798                 if (error)
2799                         break;
2800                 ieee80211_key_update_begin(vap);
2801                 k->wk_keyix = kid;      /* NB: force fixed key id */
2802                 if (ieee80211_crypto_newkey(vap, IEEE80211_CIPHER_WEP,
2803                     IEEE80211_KEY_XMIT | IEEE80211_KEY_RECV, k)) {
2804                         k->wk_keylen = ireq->i_len;
2805                         memcpy(k->wk_key, tmpkey, sizeof(tmpkey));
2806                         IEEE80211_ADDR_COPY(k->wk_macaddr, vap->iv_myaddr);
2807                         if  (!ieee80211_crypto_setkey(vap, k))
2808                                 error = EINVAL;
2809                 } else
2810                         error = EINVAL;
2811                 ieee80211_key_update_end(vap);
2812                 break;
2813         case IEEE80211_IOC_WEPTXKEY:
2814                 kid = (u_int) ireq->i_val;
2815                 if (kid >= IEEE80211_WEP_NKID &&
2816                     (uint16_t) kid != IEEE80211_KEYIX_NONE)
2817                         return EINVAL;
2818                 /*
2819                  * Firmware devices may need to be told about an explicit
2820                  * key index here, versus just inferring it from the
2821                  * key set / change.  Since we may also need to pause
2822                  * things like transmit before the key is updated,
2823                  * give the driver a chance to flush things by tying
2824                  * into key update begin/end.
2825                  */
2826                 ieee80211_key_update_begin(vap);
2827                 ieee80211_crypto_set_deftxkey(vap, kid);
2828                 ieee80211_key_update_end(vap);
2829                 break;
2830         case IEEE80211_IOC_AUTHMODE:
2831                 switch (ireq->i_val) {
2832                 case IEEE80211_AUTH_WPA:
2833                 case IEEE80211_AUTH_8021X:      /* 802.1x */
2834                 case IEEE80211_AUTH_OPEN:       /* open */
2835                 case IEEE80211_AUTH_SHARED:     /* shared-key */
2836                 case IEEE80211_AUTH_AUTO:       /* auto */
2837                         auth = ieee80211_authenticator_get(ireq->i_val);
2838                         if (auth == NULL)
2839                                 return EINVAL;
2840                         break;
2841                 default:
2842                         return EINVAL;
2843                 }
2844                 switch (ireq->i_val) {
2845                 case IEEE80211_AUTH_WPA:        /* WPA w/ 802.1x */
2846                         vap->iv_flags |= IEEE80211_F_PRIVACY;
2847                         ireq->i_val = IEEE80211_AUTH_8021X;
2848                         break;
2849                 case IEEE80211_AUTH_OPEN:       /* open */
2850                         vap->iv_flags &= ~(IEEE80211_F_WPA|IEEE80211_F_PRIVACY);
2851                         break;
2852                 case IEEE80211_AUTH_SHARED:     /* shared-key */
2853                 case IEEE80211_AUTH_8021X:      /* 802.1x */
2854                         vap->iv_flags &= ~IEEE80211_F_WPA;
2855                         /* both require a key so mark the PRIVACY capability */
2856                         vap->iv_flags |= IEEE80211_F_PRIVACY;
2857                         break;
2858                 case IEEE80211_AUTH_AUTO:       /* auto */
2859                         vap->iv_flags &= ~IEEE80211_F_WPA;
2860                         /* XXX PRIVACY handling? */
2861                         /* XXX what's the right way to do this? */
2862                         break;
2863                 }
2864                 /* NB: authenticator attach/detach happens on state change */
2865                 vap->iv_bss->ni_authmode = ireq->i_val;
2866                 /* XXX mixed/mode/usage? */
2867                 vap->iv_auth = auth;
2868                 error = ENETRESET;
2869                 break;
2870         case IEEE80211_IOC_CHANNEL:
2871                 error = ieee80211_ioctl_setchannel(vap, ireq);
2872                 break;
2873         case IEEE80211_IOC_POWERSAVE:
2874                 switch (ireq->i_val) {
2875                 case IEEE80211_POWERSAVE_OFF:
2876                         if (vap->iv_flags & IEEE80211_F_PMGTON) {
2877                                 ieee80211_syncflag(vap, -IEEE80211_F_PMGTON);
2878                                 error = ERESTART;
2879                         }
2880                         break;
2881                 case IEEE80211_POWERSAVE_ON:
2882                         if ((vap->iv_caps & IEEE80211_C_PMGT) == 0)
2883                                 error = EOPNOTSUPP;
2884                         else if ((vap->iv_flags & IEEE80211_F_PMGTON) == 0) {
2885                                 ieee80211_syncflag(vap, IEEE80211_F_PMGTON);
2886                                 error = ERESTART;
2887                         }
2888                         break;
2889                 default:
2890                         error = EINVAL;
2891                         break;
2892                 }
2893                 break;
2894         case IEEE80211_IOC_POWERSAVESLEEP:
2895                 if (ireq->i_val < 0)
2896                         return EINVAL;
2897                 ic->ic_lintval = ireq->i_val;
2898                 error = ERESTART;
2899                 break;
2900         case IEEE80211_IOC_RTSTHRESHOLD:
2901                 if (!(IEEE80211_RTS_MIN <= ireq->i_val &&
2902                       ireq->i_val <= IEEE80211_RTS_MAX))
2903                         return EINVAL;
2904                 vap->iv_rtsthreshold = ireq->i_val;
2905                 error = ERESTART;
2906                 break;
2907         case IEEE80211_IOC_PROTMODE:
2908                 if (ireq->i_val > IEEE80211_PROT_RTSCTS)
2909                         return EINVAL;
2910                 ic->ic_protmode = (enum ieee80211_protmode)ireq->i_val;
2911                 /* NB: if not operating in 11g this can wait */
2912                 if (ic->ic_bsschan != IEEE80211_CHAN_ANYC &&
2913                     IEEE80211_IS_CHAN_ANYG(ic->ic_bsschan))
2914                         error = ERESTART;
2915                 break;
2916         case IEEE80211_IOC_TXPOWER:
2917                 if ((ic->ic_caps & IEEE80211_C_TXPMGT) == 0)
2918                         return EOPNOTSUPP;
2919                 if (!(IEEE80211_TXPOWER_MIN <= ireq->i_val &&
2920                       ireq->i_val <= IEEE80211_TXPOWER_MAX))
2921                         return EINVAL;
2922                 ic->ic_txpowlimit = ireq->i_val;
2923                 error = ERESTART;
2924                 break;
2925         case IEEE80211_IOC_ROAMING:
2926                 if (!(IEEE80211_ROAMING_DEVICE <= ireq->i_val &&
2927                     ireq->i_val <= IEEE80211_ROAMING_MANUAL))
2928                         return EINVAL;
2929                 vap->iv_roaming = (enum ieee80211_roamingmode)ireq->i_val;
2930                 /* XXXX reset? */
2931                 break;
2932         case IEEE80211_IOC_PRIVACY:
2933                 if (ireq->i_val) {
2934                         /* XXX check for key state? */
2935                         vap->iv_flags |= IEEE80211_F_PRIVACY;
2936                 } else
2937                         vap->iv_flags &= ~IEEE80211_F_PRIVACY;
2938                 /* XXX ERESTART? */
2939                 break;
2940         case IEEE80211_IOC_DROPUNENCRYPTED:
2941                 if (ireq->i_val)
2942                         vap->iv_flags |= IEEE80211_F_DROPUNENC;
2943                 else
2944                         vap->iv_flags &= ~IEEE80211_F_DROPUNENC;
2945                 /* XXX ERESTART? */
2946                 break;
2947         case IEEE80211_IOC_WPAKEY:
2948                 error = ieee80211_ioctl_setkey(vap, ireq);
2949                 break;
2950         case IEEE80211_IOC_DELKEY:
2951                 error = ieee80211_ioctl_delkey(vap, ireq);
2952                 break;
2953         case IEEE80211_IOC_MLME:
2954                 error = ieee80211_ioctl_setmlme(vap, ireq);
2955                 break;
2956         case IEEE80211_IOC_COUNTERMEASURES:
2957                 if (ireq->i_val) {
2958                         if ((vap->iv_flags & IEEE80211_F_WPA) == 0)
2959                                 return EOPNOTSUPP;
2960                         vap->iv_flags |= IEEE80211_F_COUNTERM;
2961                 } else
2962                         vap->iv_flags &= ~IEEE80211_F_COUNTERM;
2963                 /* XXX ERESTART? */
2964                 break;
2965         case IEEE80211_IOC_WPA:
2966                 if (ireq->i_val > 3)
2967                         return EINVAL;
2968                 /* XXX verify ciphers available */
2969                 flags = vap->iv_flags & ~IEEE80211_F_WPA;
2970                 switch (ireq->i_val) {
2971                 case 0:
2972                         /* wpa_supplicant calls this to clear the WPA config */
2973                         break;
2974                 case 1:
2975                         if (!(vap->iv_caps & IEEE80211_C_WPA1))
2976                                 return EOPNOTSUPP;
2977                         flags |= IEEE80211_F_WPA1;
2978                         break;
2979                 case 2:
2980                         if (!(vap->iv_caps & IEEE80211_C_WPA2))
2981                                 return EOPNOTSUPP;
2982                         flags |= IEEE80211_F_WPA2;
2983                         break;
2984                 case 3:
2985                         if ((vap->iv_caps & IEEE80211_C_WPA) != IEEE80211_C_WPA)
2986                                 return EOPNOTSUPP;
2987                         flags |= IEEE80211_F_WPA1 | IEEE80211_F_WPA2;
2988                         break;
2989                 default:        /*  Can't set any -> error */
2990                         return EOPNOTSUPP;
2991                 }
2992                 vap->iv_flags = flags;
2993                 error = ERESTART;       /* NB: can change beacon frame */
2994                 break;
2995         case IEEE80211_IOC_WME:
2996                 if (ireq->i_val) {
2997                         if ((vap->iv_caps & IEEE80211_C_WME) == 0)
2998                                 return EOPNOTSUPP;
2999                         ieee80211_syncflag(vap, IEEE80211_F_WME);
3000                 } else
3001                         ieee80211_syncflag(vap, -IEEE80211_F_WME);
3002                 error = ERESTART;       /* NB: can change beacon frame */
3003                 break;
3004         case IEEE80211_IOC_HIDESSID:
3005                 if (ireq->i_val)
3006                         vap->iv_flags |= IEEE80211_F_HIDESSID;
3007                 else
3008                         vap->iv_flags &= ~IEEE80211_F_HIDESSID;
3009                 error = ERESTART;               /* XXX ENETRESET? */
3010                 break;
3011         case IEEE80211_IOC_APBRIDGE:
3012                 if (ireq->i_val == 0)
3013                         vap->iv_flags |= IEEE80211_F_NOBRIDGE;
3014                 else
3015                         vap->iv_flags &= ~IEEE80211_F_NOBRIDGE;
3016                 break;
3017         case IEEE80211_IOC_BSSID:
3018                 if (ireq->i_len != sizeof(tmpbssid))
3019                         return EINVAL;
3020                 error = copyin(ireq->i_data, tmpbssid, ireq->i_len);
3021                 if (error)
3022                         break;
3023                 IEEE80211_ADDR_COPY(vap->iv_des_bssid, tmpbssid);
3024                 if (IEEE80211_ADDR_EQ(vap->iv_des_bssid, zerobssid))
3025                         vap->iv_flags &= ~IEEE80211_F_DESBSSID;
3026                 else
3027                         vap->iv_flags |= IEEE80211_F_DESBSSID;
3028                 error = ENETRESET;
3029                 break;
3030         case IEEE80211_IOC_CHANLIST:
3031                 error = ieee80211_ioctl_setchanlist(vap, ireq);
3032                 break;
3033 #define OLD_IEEE80211_IOC_SCAN_REQ      23
3034 #ifdef OLD_IEEE80211_IOC_SCAN_REQ
3035         case OLD_IEEE80211_IOC_SCAN_REQ:
3036                 IEEE80211_DPRINTF(vap, IEEE80211_MSG_SCAN,
3037                         "%s: active scan request\n", __func__);
3038                 /*
3039                  * If we are in INIT state then the driver has never
3040                  * had a chance to setup hardware state to do a scan;
3041                  * use the state machine to get us up the SCAN state.
3042                  * Otherwise just invoke the scan machinery to start
3043                  * a one-time scan.
3044                  */
3045                 if (vap->iv_state == IEEE80211_S_INIT)
3046                         ieee80211_new_state(vap, IEEE80211_S_SCAN, 0);
3047                 else
3048                         (void) ieee80211_start_scan(vap,
3049                                 IEEE80211_SCAN_ACTIVE |
3050                                 IEEE80211_SCAN_NOPICK |
3051                                 IEEE80211_SCAN_ONCE,
3052                                 IEEE80211_SCAN_FOREVER, 0, 0,
3053                                 /* XXX use ioctl params */
3054                                 vap->iv_des_nssid, vap->iv_des_ssid);
3055                 break;
3056 #endif /* OLD_IEEE80211_IOC_SCAN_REQ */
3057         case IEEE80211_IOC_SCAN_REQ:
3058                 error = ieee80211_ioctl_scanreq(vap, ireq);
3059                 break;
3060         case IEEE80211_IOC_SCAN_CANCEL:
3061                 IEEE80211_DPRINTF(vap, IEEE80211_MSG_SCAN,
3062                     "%s: cancel scan\n", __func__);
3063                 ieee80211_cancel_scan(vap);
3064                 break;
3065         case IEEE80211_IOC_HTCONF:
3066                 if (ireq->i_val & 1)
3067                         ieee80211_syncflag_ht(vap, IEEE80211_FHT_HT);
3068                 else
3069                         ieee80211_syncflag_ht(vap, -IEEE80211_FHT_HT);
3070                 if (ireq->i_val & 2)
3071                         ieee80211_syncflag_ht(vap, IEEE80211_FHT_USEHT40);
3072                 else
3073                         ieee80211_syncflag_ht(vap, -IEEE80211_FHT_USEHT40);
3074                 error = ENETRESET;
3075                 break;
3076         case IEEE80211_IOC_ADDMAC:
3077         case IEEE80211_IOC_DELMAC:
3078                 error = ieee80211_ioctl_macmac(vap, ireq);
3079                 break;
3080         case IEEE80211_IOC_MACCMD:
3081                 error = ieee80211_ioctl_setmaccmd(vap, ireq);
3082                 break;
3083         case IEEE80211_IOC_STA_STATS:
3084                 error = ieee80211_ioctl_setstastats(vap, ireq);
3085                 break;
3086         case IEEE80211_IOC_STA_TXPOW:
3087                 error = ieee80211_ioctl_setstatxpow(vap, ireq);
3088                 break;
3089         case IEEE80211_IOC_WME_CWMIN:           /* WME: CWmin */
3090         case IEEE80211_IOC_WME_CWMAX:           /* WME: CWmax */
3091         case IEEE80211_IOC_WME_AIFS:            /* WME: AIFS */
3092         case IEEE80211_IOC_WME_TXOPLIMIT:       /* WME: txops limit */
3093         case IEEE80211_IOC_WME_ACM:             /* WME: ACM (bss only) */
3094         case IEEE80211_IOC_WME_ACKPOLICY:       /* WME: ACK policy (!bss only) */
3095                 error = ieee80211_ioctl_setwmeparam(vap, ireq);
3096                 break;
3097         case IEEE80211_IOC_DTIM_PERIOD:
3098                 if (vap->iv_opmode != IEEE80211_M_HOSTAP &&
3099                     vap->iv_opmode != IEEE80211_M_MBSS &&
3100                     vap->iv_opmode != IEEE80211_M_IBSS)
3101                         return EINVAL;
3102                 if (IEEE80211_DTIM_MIN <= ireq->i_val &&
3103                     ireq->i_val <= IEEE80211_DTIM_MAX) {
3104                         vap->iv_dtim_period = ireq->i_val;
3105                         error = ENETRESET;              /* requires restart */
3106                 } else
3107                         error = EINVAL;
3108                 break;
3109         case IEEE80211_IOC_BEACON_INTERVAL:
3110                 if (vap->iv_opmode != IEEE80211_M_HOSTAP &&
3111                     vap->iv_opmode != IEEE80211_M_MBSS &&
3112                     vap->iv_opmode != IEEE80211_M_IBSS)
3113                         return EINVAL;
3114                 if (IEEE80211_BINTVAL_MIN <= ireq->i_val &&
3115                     ireq->i_val <= IEEE80211_BINTVAL_MAX) {
3116                         ic->ic_bintval = ireq->i_val;
3117                         error = ENETRESET;              /* requires restart */
3118                 } else
3119                         error = EINVAL;
3120                 break;
3121         case IEEE80211_IOC_PUREG:
3122                 if (ireq->i_val)
3123                         vap->iv_flags |= IEEE80211_F_PUREG;
3124                 else
3125                         vap->iv_flags &= ~IEEE80211_F_PUREG;
3126                 /* NB: reset only if we're operating on an 11g channel */
3127                 if (isvap11g(vap))
3128                         error = ENETRESET;
3129                 break;
3130         case IEEE80211_IOC_QUIET:
3131                 vap->iv_quiet= ireq->i_val;
3132                 break;
3133         case IEEE80211_IOC_QUIET_COUNT:
3134                 vap->iv_quiet_count=ireq->i_val;
3135                 break;
3136         case IEEE80211_IOC_QUIET_PERIOD:
3137                 vap->iv_quiet_period=ireq->i_val;
3138                 break;
3139         case IEEE80211_IOC_QUIET_OFFSET:
3140                 vap->iv_quiet_offset=ireq->i_val;
3141                 break;
3142         case IEEE80211_IOC_QUIET_DUR:
3143                 if(ireq->i_val < vap->iv_bss->ni_intval)
3144                         vap->iv_quiet_duration = ireq->i_val;
3145                 else
3146                         error = EINVAL;
3147                 break;
3148         case IEEE80211_IOC_BGSCAN:
3149                 if (ireq->i_val) {
3150                         if ((vap->iv_caps & IEEE80211_C_BGSCAN) == 0)
3151                                 return EOPNOTSUPP;
3152                         vap->iv_flags |= IEEE80211_F_BGSCAN;
3153                 } else
3154                         vap->iv_flags &= ~IEEE80211_F_BGSCAN;
3155                 break;
3156         case IEEE80211_IOC_BGSCAN_IDLE:
3157                 if (ireq->i_val >= IEEE80211_BGSCAN_IDLE_MIN)
3158                         vap->iv_bgscanidle = ireq->i_val*hz/1000;
3159                 else
3160                         error = EINVAL;
3161                 break;
3162         case IEEE80211_IOC_BGSCAN_INTERVAL:
3163                 if (ireq->i_val >= IEEE80211_BGSCAN_INTVAL_MIN)
3164                         vap->iv_bgscanintvl = ireq->i_val*hz;
3165                 else
3166                         error = EINVAL;
3167                 break;
3168         case IEEE80211_IOC_SCANVALID:
3169                 if (ireq->i_val >= IEEE80211_SCAN_VALID_MIN)
3170                         vap->iv_scanvalid = ireq->i_val*hz;
3171                 else
3172                         error = EINVAL;
3173                 break;
3174         case IEEE80211_IOC_FRAGTHRESHOLD:
3175                 if ((vap->iv_caps & IEEE80211_C_TXFRAG) == 0 &&
3176                     ireq->i_val != IEEE80211_FRAG_MAX)
3177                         return EOPNOTSUPP;
3178                 if (!(IEEE80211_FRAG_MIN <= ireq->i_val &&
3179                       ireq->i_val <= IEEE80211_FRAG_MAX))
3180                         return EINVAL;
3181                 vap->iv_fragthreshold = ireq->i_val;
3182                 error = ERESTART;
3183                 break;
3184         case IEEE80211_IOC_BURST:
3185                 if (ireq->i_val) {
3186                         if ((vap->iv_caps & IEEE80211_C_BURST) == 0)
3187                                 return EOPNOTSUPP;
3188                         ieee80211_syncflag(vap, IEEE80211_F_BURST);
3189                 } else
3190                         ieee80211_syncflag(vap, -IEEE80211_F_BURST);
3191                 error = ERESTART;
3192                 break;
3193         case IEEE80211_IOC_BMISSTHRESHOLD:
3194                 if (!(IEEE80211_HWBMISS_MIN <= ireq->i_val &&
3195                       ireq->i_val <= IEEE80211_HWBMISS_MAX))
3196                         return EINVAL;
3197                 vap->iv_bmissthreshold = ireq->i_val;
3198                 error = ERESTART;
3199                 break;
3200         case IEEE80211_IOC_CURCHAN:
3201                 error = ieee80211_ioctl_setcurchan(vap, ireq);
3202                 break;
3203         case IEEE80211_IOC_SHORTGI:
3204                 if (ireq->i_val) {
3205 #define IEEE80211_HTCAP_SHORTGI \
3206         (IEEE80211_HTCAP_SHORTGI20 | IEEE80211_HTCAP_SHORTGI40)
3207                         if (((ireq->i_val ^ vap->iv_htcaps) & IEEE80211_HTCAP_SHORTGI) != 0)
3208                                 return EINVAL;
3209                         if (ireq->i_val & IEEE80211_HTCAP_SHORTGI20)
3210                                 vap->iv_flags_ht |= IEEE80211_FHT_SHORTGI20;
3211                         if (ireq->i_val & IEEE80211_HTCAP_SHORTGI40)
3212                                 vap->iv_flags_ht |= IEEE80211_FHT_SHORTGI40;
3213 #undef IEEE80211_HTCAP_SHORTGI
3214                 } else
3215                         vap->iv_flags_ht &=
3216                             ~(IEEE80211_FHT_SHORTGI20 | IEEE80211_FHT_SHORTGI40);
3217                 error = ERESTART;
3218                 break;
3219         case IEEE80211_IOC_AMPDU:
3220                 if (ireq->i_val && (vap->iv_htcaps & IEEE80211_HTC_AMPDU) == 0)
3221                         return EINVAL;
3222                 if (ireq->i_val & 1)
3223                         vap->iv_flags_ht |= IEEE80211_FHT_AMPDU_TX;
3224                 else
3225                         vap->iv_flags_ht &= ~IEEE80211_FHT_AMPDU_TX;
3226                 if (ireq->i_val & 2)
3227                         vap->iv_flags_ht |= IEEE80211_FHT_AMPDU_RX;
3228                 else
3229                         vap->iv_flags_ht &= ~IEEE80211_FHT_AMPDU_RX;
3230                 /* NB: reset only if we're operating on an 11n channel */
3231                 if (isvapht(vap))
3232                         error = ERESTART;
3233                 break;
3234         case IEEE80211_IOC_AMPDU_LIMIT:
3235                 /* XXX TODO: figure out ampdu_limit versus ampdu_rxmax */
3236                 if (!(IEEE80211_HTCAP_MAXRXAMPDU_8K <= ireq->i_val &&
3237                       ireq->i_val <= IEEE80211_HTCAP_MAXRXAMPDU_64K))
3238                         return EINVAL;
3239                 if (vap->iv_opmode == IEEE80211_M_HOSTAP)
3240                         vap->iv_ampdu_rxmax = ireq->i_val;
3241                 else
3242                         vap->iv_ampdu_limit = ireq->i_val;
3243                 error = ERESTART;
3244                 break;
3245         case IEEE80211_IOC_AMPDU_DENSITY:
3246                 if (!(IEEE80211_HTCAP_MPDUDENSITY_NA <= ireq->i_val &&
3247                       ireq->i_val <= IEEE80211_HTCAP_MPDUDENSITY_16))
3248                         return EINVAL;
3249                 vap->iv_ampdu_density = ireq->i_val;
3250                 error = ERESTART;
3251                 break;
3252         case IEEE80211_IOC_AMSDU:
3253                 if (ireq->i_val && (vap->iv_htcaps & IEEE80211_HTC_AMSDU) == 0)
3254                         return EINVAL;
3255                 if (ireq->i_val & 1)
3256                         vap->iv_flags_ht |= IEEE80211_FHT_AMSDU_TX;
3257                 else
3258                         vap->iv_flags_ht &= ~IEEE80211_FHT_AMSDU_TX;
3259                 if (ireq->i_val & 2)
3260                         vap->iv_flags_ht |= IEEE80211_FHT_AMSDU_RX;
3261                 else
3262                         vap->iv_flags_ht &= ~IEEE80211_FHT_AMSDU_RX;
3263                 /* NB: reset only if we're operating on an 11n channel */
3264                 if (isvapht(vap))
3265                         error = ERESTART;
3266                 break;
3267         case IEEE80211_IOC_AMSDU_LIMIT:
3268                 /* XXX validate */
3269                 vap->iv_amsdu_limit = ireq->i_val;      /* XXX truncation? */
3270                 break;
3271         case IEEE80211_IOC_PUREN:
3272                 if (ireq->i_val) {
3273                         if ((vap->iv_flags_ht & IEEE80211_FHT_HT) == 0)
3274                                 return EINVAL;
3275                         vap->iv_flags_ht |= IEEE80211_FHT_PUREN;
3276                 } else
3277                         vap->iv_flags_ht &= ~IEEE80211_FHT_PUREN;
3278                 /* NB: reset only if we're operating on an 11n channel */
3279                 if (isvapht(vap))
3280                         error = ERESTART;
3281                 break;
3282         case IEEE80211_IOC_DOTH:
3283                 if (ireq->i_val) {
3284 #if 0
3285                         /* XXX no capability */
3286                         if ((vap->iv_caps & IEEE80211_C_DOTH) == 0)
3287                                 return EOPNOTSUPP;
3288 #endif
3289                         vap->iv_flags |= IEEE80211_F_DOTH;
3290                 } else
3291                         vap->iv_flags &= ~IEEE80211_F_DOTH;
3292                 error = ENETRESET;
3293                 break;
3294         case IEEE80211_IOC_REGDOMAIN:
3295                 error = ieee80211_ioctl_setregdomain(vap, ireq);
3296                 break;
3297         case IEEE80211_IOC_ROAM:
3298                 error = ieee80211_ioctl_setroam(vap, ireq);
3299                 break;
3300         case IEEE80211_IOC_TXPARAMS:
3301                 error = ieee80211_ioctl_settxparams(vap, ireq);
3302                 break;
3303         case IEEE80211_IOC_HTCOMPAT:
3304                 if (ireq->i_val) {
3305                         if ((vap->iv_flags_ht & IEEE80211_FHT_HT) == 0)
3306                                 return EOPNOTSUPP;
3307                         vap->iv_flags_ht |= IEEE80211_FHT_HTCOMPAT;
3308                 } else
3309                         vap->iv_flags_ht &= ~IEEE80211_FHT_HTCOMPAT;
3310                 /* NB: reset only if we're operating on an 11n channel */
3311                 if (isvapht(vap))
3312                         error = ERESTART;
3313                 break;
3314         case IEEE80211_IOC_DWDS:
3315                 if (ireq->i_val) {
3316                         /* NB: DWDS only makes sense for WDS-capable devices */
3317                         if ((ic->ic_caps & IEEE80211_C_WDS) == 0)
3318                                 return EOPNOTSUPP;
3319                         /* NB: DWDS is used only with ap+sta vaps */
3320                         if (vap->iv_opmode != IEEE80211_M_HOSTAP &&
3321                             vap->iv_opmode != IEEE80211_M_STA)
3322                                 return EINVAL;
3323                         vap->iv_flags |= IEEE80211_F_DWDS;
3324                         if (vap->iv_opmode == IEEE80211_M_STA)
3325                                 vap->iv_flags_ext |= IEEE80211_FEXT_4ADDR;
3326                 } else {
3327                         vap->iv_flags &= ~IEEE80211_F_DWDS;
3328                         if (vap->iv_opmode == IEEE80211_M_STA)
3329                                 vap->iv_flags_ext &= ~IEEE80211_FEXT_4ADDR;
3330                 }
3331                 break;
3332         case IEEE80211_IOC_INACTIVITY:
3333                 if (ireq->i_val)
3334                         vap->iv_flags_ext |= IEEE80211_FEXT_INACT;
3335                 else
3336                         vap->iv_flags_ext &= ~IEEE80211_FEXT_INACT;
3337                 break;
3338         case IEEE80211_IOC_APPIE:
3339                 error = ieee80211_ioctl_setappie(vap, ireq);
3340                 break;
3341         case IEEE80211_IOC_WPS:
3342                 if (ireq->i_val) {
3343                         if ((vap->iv_caps & IEEE80211_C_WPA) == 0)
3344                                 return EOPNOTSUPP;
3345                         vap->iv_flags_ext |= IEEE80211_FEXT_WPS;
3346                 } else
3347                         vap->iv_flags_ext &= ~IEEE80211_FEXT_WPS;
3348                 break;
3349         case IEEE80211_IOC_TSN:
3350                 if (ireq->i_val) {
3351                         if ((vap->iv_caps & IEEE80211_C_WPA) == 0)
3352                                 return EOPNOTSUPP;
3353                         vap->iv_flags_ext |= IEEE80211_FEXT_TSN;
3354                 } else
3355                         vap->iv_flags_ext &= ~IEEE80211_FEXT_TSN;
3356                 break;
3357         case IEEE80211_IOC_CHANSWITCH:
3358                 error = ieee80211_ioctl_chanswitch(vap, ireq);
3359                 break;
3360         case IEEE80211_IOC_DFS:
3361                 if (ireq->i_val) {
3362                         if ((vap->iv_caps & IEEE80211_C_DFS) == 0)
3363                                 return EOPNOTSUPP;
3364                         /* NB: DFS requires 11h support */
3365                         if ((vap->iv_flags & IEEE80211_F_DOTH) == 0)
3366                                 return EINVAL;
3367                         vap->iv_flags_ext |= IEEE80211_FEXT_DFS;
3368                 } else
3369                         vap->iv_flags_ext &= ~IEEE80211_FEXT_DFS;
3370                 break;
3371         case IEEE80211_IOC_DOTD:
3372                 if (ireq->i_val)
3373                         vap->iv_flags_ext |= IEEE80211_FEXT_DOTD;
3374                 else
3375                         vap->iv_flags_ext &= ~IEEE80211_FEXT_DOTD;
3376                 if (vap->iv_opmode == IEEE80211_M_STA)
3377                         error = ENETRESET;
3378                 break;
3379         case IEEE80211_IOC_HTPROTMODE:
3380                 if (ireq->i_val > IEEE80211_PROT_RTSCTS)
3381                         return EINVAL;
3382                 ic->ic_htprotmode = ireq->i_val ?
3383                     IEEE80211_PROT_RTSCTS : IEEE80211_PROT_NONE;
3384                 /* NB: if not operating in 11n this can wait */
3385                 if (isvapht(vap))
3386                         error = ERESTART;
3387                 break;
3388         case IEEE80211_IOC_STA_VLAN:
3389                 error = ieee80211_ioctl_setstavlan(vap, ireq);
3390                 break;
3391         case IEEE80211_IOC_SMPS:
3392                 if ((ireq->i_val &~ IEEE80211_HTCAP_SMPS) != 0 ||
3393                     ireq->i_val == 0x0008)      /* value of 2 is reserved */
3394                         return EINVAL;
3395                 if (ireq->i_val != IEEE80211_HTCAP_SMPS_OFF &&
3396                     (vap->iv_htcaps & IEEE80211_HTC_SMPS) == 0)
3397                         return EOPNOTSUPP;
3398                 vap->iv_htcaps = (vap->iv_htcaps &~ IEEE80211_HTCAP_SMPS) |
3399                         ireq->i_val;
3400                 /* NB: if not operating in 11n this can wait */
3401                 if (isvapht(vap))
3402                         error = ERESTART;
3403                 break;
3404         case IEEE80211_IOC_RIFS:
3405                 if (ireq->i_val != 0) {
3406                         if ((vap->iv_htcaps & IEEE80211_HTC_RIFS) == 0)
3407                                 return EOPNOTSUPP;
3408                         vap->iv_flags_ht |= IEEE80211_FHT_RIFS;
3409                 } else
3410                         vap->iv_flags_ht &= ~IEEE80211_FHT_RIFS;
3411                 /* NB: if not operating in 11n this can wait */
3412                 if (isvapht(vap))
3413                         error = ERESTART;
3414                 break;
3415         case IEEE80211_IOC_STBC:
3416                 /* Check if we can do STBC TX/RX before changing the setting */
3417                 if ((ireq->i_val & 1) &&
3418                     ((vap->iv_htcaps & IEEE80211_HTCAP_TXSTBC) == 0))
3419                         return EOPNOTSUPP;
3420                 if ((ireq->i_val & 2) &&
3421                     ((vap->iv_htcaps & IEEE80211_HTCAP_RXSTBC) == 0))
3422                         return EOPNOTSUPP;
3423
3424                 /* TX */
3425                 if (ireq->i_val & 1)
3426                         vap->iv_flags_ht |= IEEE80211_FHT_STBC_TX;
3427                 else
3428                         vap->iv_flags_ht &= ~IEEE80211_FHT_STBC_TX;
3429
3430                 /* RX */
3431                 if (ireq->i_val & 2)
3432                         vap->iv_flags_ht |= IEEE80211_FHT_STBC_RX;
3433                 else
3434                         vap->iv_flags_ht &= ~IEEE80211_FHT_STBC_RX;
3435
3436                 /* NB: reset only if we're operating on an 11n channel */
3437                 if (isvapht(vap))
3438                         error = ERESTART;
3439                 break;
3440         case IEEE80211_IOC_LDPC:
3441                 /* Check if we can do LDPC TX/RX before changing the setting */
3442                 if ((ireq->i_val & 1) &&
3443                     (vap->iv_htcaps & IEEE80211_HTC_TXLDPC) == 0)
3444                         return EOPNOTSUPP;
3445                 if ((ireq->i_val & 2) &&
3446                     (vap->iv_htcaps & IEEE80211_HTCAP_LDPC) == 0)
3447                         return EOPNOTSUPP;
3448
3449                 /* TX */
3450                 if (ireq->i_val & 1)
3451                         vap->iv_flags_ht |= IEEE80211_FHT_LDPC_TX;
3452                 else
3453                         vap->iv_flags_ht &= ~IEEE80211_FHT_LDPC_TX;
3454
3455                 /* RX */
3456                 if (ireq->i_val & 2)
3457                         vap->iv_flags_ht |= IEEE80211_FHT_LDPC_RX;
3458                 else
3459                         vap->iv_flags_ht &= ~IEEE80211_FHT_LDPC_RX;
3460
3461                 /* NB: reset only if we're operating on an 11n channel */
3462                 if (isvapht(vap))
3463                         error = ERESTART;
3464                 break;
3465
3466         /* VHT */
3467         case IEEE80211_IOC_VHTCONF:
3468                 if (ireq->i_val & 1)
3469                         ieee80211_syncflag_vht(vap, IEEE80211_FVHT_VHT);
3470                 else
3471                         ieee80211_syncflag_vht(vap, -IEEE80211_FVHT_VHT);
3472
3473                 if (ireq->i_val & 2)
3474                         ieee80211_syncflag_vht(vap, IEEE80211_FVHT_USEVHT40);
3475                 else
3476                         ieee80211_syncflag_vht(vap, -IEEE80211_FVHT_USEVHT40);
3477
3478                 if (ireq->i_val & 4)
3479                         ieee80211_syncflag_vht(vap, IEEE80211_FVHT_USEVHT80);
3480                 else
3481                         ieee80211_syncflag_vht(vap, -IEEE80211_FVHT_USEVHT80);
3482
3483                 if (ireq->i_val & 8)
3484                         ieee80211_syncflag_vht(vap, IEEE80211_FVHT_USEVHT80P80);
3485                 else
3486                         ieee80211_syncflag_vht(vap, -IEEE80211_FVHT_USEVHT80P80);
3487
3488                 if (ireq->i_val & 16)
3489                         ieee80211_syncflag_vht(vap, IEEE80211_FVHT_USEVHT160);
3490                 else
3491                         ieee80211_syncflag_vht(vap, -IEEE80211_FVHT_USEVHT160);
3492
3493                 error = ENETRESET;
3494                 break;
3495
3496         default:
3497                 error = ieee80211_ioctl_setdefault(vap, ireq);
3498                 break;
3499         }
3500         /*
3501          * The convention is that ENETRESET means an operation
3502          * requires a complete re-initialization of the device (e.g.
3503          * changing something that affects the association state).
3504          * ERESTART means the request may be handled with only a
3505          * reload of the hardware state.  We hand ERESTART requests
3506          * to the iv_reset callback so the driver can decide.  If
3507          * a device does not fillin iv_reset then it defaults to one
3508          * that returns ENETRESET.  Otherwise a driver may return
3509          * ENETRESET (in which case a full reset will be done) or
3510          * 0 to mean there's no need to do anything (e.g. when the
3511          * change has no effect on the driver/device).
3512          */
3513         if (error == ERESTART)
3514                 error = IFNET_IS_UP_RUNNING(vap->iv_ifp) ?
3515                     vap->iv_reset(vap, ireq->i_type) : 0;
3516         if (error == ENETRESET) {
3517                 /* XXX need to re-think AUTO handling */
3518                 if (IS_UP_AUTO(vap))
3519                         ieee80211_init(vap);
3520                 error = 0;
3521         }
3522         return error;
3523 }
3524
3525 int
3526 ieee80211_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
3527 {
3528         struct ieee80211vap *vap = ifp->if_softc;
3529         struct ieee80211com *ic = vap->iv_ic;
3530         int error = 0, wait = 0, ic_used;
3531         struct ifreq *ifr;
3532         struct ifaddr *ifa;                     /* XXX */
3533
3534         ic_used = (cmd != SIOCSIFMTU && cmd != SIOCG80211STATS);
3535         if (ic_used && (error = ieee80211_com_vincref(vap)) != 0)
3536                 return (error);
3537
3538         switch (cmd) {
3539         case SIOCSIFFLAGS:
3540                 IEEE80211_LOCK(ic);
3541                 if ((ifp->if_flags ^ vap->iv_ifflags) & IFF_PROMISC) {
3542                         /*
3543                          * Enable promiscuous mode when:
3544                          * 1. Interface is not a member of bridge, or
3545                          * 2. Requested by user, or
3546                          * 3. In monitor (or adhoc-demo) mode.
3547                          */
3548                         if (ifp->if_bridge == NULL ||
3549                             (ifp->if_flags & IFF_PPROMISC) != 0 ||
3550                             vap->iv_opmode == IEEE80211_M_MONITOR ||
3551                             (vap->iv_opmode == IEEE80211_M_AHDEMO &&
3552                             (vap->iv_caps & IEEE80211_C_TDMA) == 0)) {
3553                                 ieee80211_promisc(vap,
3554                                     ifp->if_flags & IFF_PROMISC);
3555                                 vap->iv_ifflags ^= IFF_PROMISC;
3556                         }
3557                 }
3558                 if ((ifp->if_flags ^ vap->iv_ifflags) & IFF_ALLMULTI) {
3559                         ieee80211_allmulti(vap, ifp->if_flags & IFF_ALLMULTI);
3560                         vap->iv_ifflags ^= IFF_ALLMULTI;
3561                 }
3562                 if (ifp->if_flags & IFF_UP) {
3563                         /*
3564                          * Bring ourself up unless we're already operational.
3565                          * If we're the first vap and the parent is not up
3566                          * then it will automatically be brought up as a
3567                          * side-effect of bringing ourself up.
3568                          */
3569                         if (vap->iv_state == IEEE80211_S_INIT) {
3570                                 if (ic->ic_nrunning == 0)
3571                                         wait = 1;
3572                                 ieee80211_start_locked(vap);
3573                         }
3574                 } else if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
3575                         /*
3576                          * Stop ourself.  If we are the last vap to be
3577                          * marked down the parent will also be taken down.
3578                          */
3579                         if (ic->ic_nrunning == 1)
3580                                 wait = 1;
3581                         ieee80211_stop_locked(vap);
3582                 }
3583                 IEEE80211_UNLOCK(ic);
3584                 /* Wait for parent ioctl handler if it was queued */
3585                 if (wait) {
3586                         ieee80211_waitfor_parent(ic);
3587
3588                         /*
3589                          * Check if the MAC address was changed
3590                          * via SIOCSIFLLADDR ioctl.
3591                          *
3592                          * NB: device may be detached during initialization;
3593                          * use if_ioctl for existence check.
3594                          */
3595                         if_addr_rlock(ifp);
3596                         if (ifp->if_ioctl == ieee80211_ioctl &&
3597                             (ifp->if_flags & IFF_UP) == 0 &&
3598                             !IEEE80211_ADDR_EQ(vap->iv_myaddr, IF_LLADDR(ifp)))
3599                                 IEEE80211_ADDR_COPY(vap->iv_myaddr,
3600                                     IF_LLADDR(ifp));
3601                         if_addr_runlock(ifp);
3602                 }
3603                 break;
3604         case SIOCADDMULTI:
3605         case SIOCDELMULTI:
3606                 ieee80211_runtask(ic, &ic->ic_mcast_task);
3607                 break;
3608         case SIOCSIFMEDIA:
3609         case SIOCGIFMEDIA:
3610                 ifr = (struct ifreq *)data;
3611                 error = ifmedia_ioctl(ifp, ifr, &vap->iv_media, cmd);
3612                 break;
3613         case SIOCG80211:
3614                 error = ieee80211_ioctl_get80211(vap, cmd,
3615                                 (struct ieee80211req *) data);
3616                 break;
3617         case SIOCS80211:
3618                 error = priv_check(curthread, PRIV_NET80211_MANAGE);
3619                 if (error == 0)
3620                         error = ieee80211_ioctl_set80211(vap, cmd,
3621                                         (struct ieee80211req *) data);
3622                 break;
3623         case SIOCG80211STATS:
3624                 ifr = (struct ifreq *)data;
3625                 copyout(&vap->iv_stats, ifr_data_get_ptr(ifr),
3626                     sizeof (vap->iv_stats));
3627                 break;
3628         case SIOCSIFMTU:
3629                 ifr = (struct ifreq *)data;
3630                 if (!(IEEE80211_MTU_MIN <= ifr->ifr_mtu &&
3631                     ifr->ifr_mtu <= IEEE80211_MTU_MAX))
3632                         error = EINVAL;
3633                 else
3634                         ifp->if_mtu = ifr->ifr_mtu;
3635                 break;
3636         case SIOCSIFADDR:
3637                 /*
3638                  * XXX Handle this directly so we can suppress if_init calls.
3639                  * XXX This should be done in ether_ioctl but for the moment
3640                  * XXX there are too many other parts of the system that
3641                  * XXX set IFF_UP and so suppress if_init being called when
3642                  * XXX it should be.
3643                  */
3644                 ifa = (struct ifaddr *) data;
3645                 switch (ifa->ifa_addr->sa_family) {
3646 #ifdef INET
3647                 case AF_INET:
3648                         if ((ifp->if_flags & IFF_UP) == 0) {
3649                                 ifp->if_flags |= IFF_UP;
3650                                 ifp->if_init(ifp->if_softc);
3651                         }
3652                         arp_ifinit(ifp, ifa);
3653                         break;
3654 #endif
3655                 default:
3656                         if ((ifp->if_flags & IFF_UP) == 0) {
3657                                 ifp->if_flags |= IFF_UP;
3658                                 ifp->if_init(ifp->if_softc);
3659                         }
3660                         break;
3661                 }
3662                 break;
3663         default:
3664                 /*
3665                  * Pass unknown ioctls first to the driver, and if it
3666                  * returns ENOTTY, then to the generic Ethernet handler.
3667                  */
3668                 if (ic->ic_ioctl != NULL &&
3669                     (error = ic->ic_ioctl(ic, cmd, data)) != ENOTTY)
3670                         break;
3671                 error = ether_ioctl(ifp, cmd, data);
3672                 break;
3673         }
3674
3675         if (ic_used)
3676                 ieee80211_com_vdecref(vap);
3677
3678         return (error);
3679 }