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 ieee80211_ioctl_setroam(struct ieee80211vap *vap,
2208         const struct ieee80211req *ireq)
2209 {
2210         if (ireq->i_len != sizeof(vap->iv_roamparms))
2211                 return EINVAL;
2212         /* XXX validate params */
2213         /* XXX? ENETRESET to push to device? */
2214         return copyin(ireq->i_data, vap->iv_roamparms,
2215             sizeof(vap->iv_roamparms));
2216 }
2217
2218 static int
2219 checkrate(const struct ieee80211_rateset *rs, int rate)
2220 {
2221         int i;
2222
2223         if (rate == IEEE80211_FIXED_RATE_NONE)
2224                 return 1;
2225         for (i = 0; i < rs->rs_nrates; i++)
2226                 if ((rs->rs_rates[i] & IEEE80211_RATE_VAL) == rate)
2227                         return 1;
2228         return 0;
2229 }
2230
2231 static int
2232 checkmcs(const struct ieee80211_htrateset *rs, int mcs)
2233 {
2234         int rate_val = IEEE80211_RV(mcs);
2235         int i;
2236
2237         if (mcs == IEEE80211_FIXED_RATE_NONE)
2238                 return 1;
2239         if ((mcs & IEEE80211_RATE_MCS) == 0)    /* MCS always have 0x80 set */
2240                 return 0;
2241         for (i = 0; i < rs->rs_nrates; i++)
2242                 if (IEEE80211_RV(rs->rs_rates[i]) == rate_val)
2243                         return 1;
2244         return 0;
2245 }
2246
2247 static int
2248 ieee80211_ioctl_settxparams(struct ieee80211vap *vap,
2249         const struct ieee80211req *ireq)
2250 {
2251         struct ieee80211com *ic = vap->iv_ic;
2252         struct ieee80211_txparams_req parms;    /* XXX stack use? */
2253         struct ieee80211_txparam *src, *dst;
2254         const struct ieee80211_htrateset *rs_ht;
2255         const struct ieee80211_rateset *rs;
2256         int error, mode, changed, is11n, nmodes;
2257
2258         /* NB: accept short requests for backwards compat */
2259         if (ireq->i_len > sizeof(parms))
2260                 return EINVAL;
2261         error = copyin(ireq->i_data, &parms, ireq->i_len);
2262         if (error != 0)
2263                 return error;
2264         nmodes = ireq->i_len / sizeof(struct ieee80211_txparam);
2265         changed = 0;
2266         /* validate parameters and check if anything changed */
2267         for (mode = IEEE80211_MODE_11A; mode < nmodes; mode++) {
2268                 if (isclr(ic->ic_modecaps, mode))
2269                         continue;
2270                 src = &parms.params[mode];
2271                 dst = &vap->iv_txparms[mode];
2272                 rs = &ic->ic_sup_rates[mode];   /* NB: 11n maps to legacy */
2273                 rs_ht = &ic->ic_sup_htrates;
2274                 is11n = (mode == IEEE80211_MODE_11NA ||
2275                          mode == IEEE80211_MODE_11NG);
2276                 if (src->ucastrate != dst->ucastrate) {
2277                         if (!checkrate(rs, src->ucastrate) &&
2278                             (!is11n || !checkmcs(rs_ht, src->ucastrate)))
2279                                 return EINVAL;
2280                         changed++;
2281                 }
2282                 if (src->mcastrate != dst->mcastrate) {
2283                         if (!checkrate(rs, src->mcastrate) &&
2284                             (!is11n || !checkmcs(rs_ht, src->mcastrate)))
2285                                 return EINVAL;
2286                         changed++;
2287                 }
2288                 if (src->mgmtrate != dst->mgmtrate) {
2289                         if (!checkrate(rs, src->mgmtrate) &&
2290                             (!is11n || !checkmcs(rs_ht, src->mgmtrate)))
2291                                 return EINVAL;
2292                         changed++;
2293                 }
2294                 if (src->maxretry != dst->maxretry)     /* NB: no bounds */
2295                         changed++;
2296         }
2297         if (changed) {
2298                 /*
2299                  * Copy new parameters in place and notify the
2300                  * driver so it can push state to the device.
2301                  */
2302                 for (mode = IEEE80211_MODE_11A; mode < nmodes; mode++) {
2303                         if (isset(ic->ic_modecaps, mode))
2304                                 vap->iv_txparms[mode] = parms.params[mode];
2305                 }
2306                 /* XXX could be more intelligent,
2307                    e.g. don't reset if setting not being used */
2308                 return ENETRESET;
2309         }
2310         return 0;
2311 }
2312
2313 /*
2314  * Application Information Element support.
2315  */
2316 static int
2317 setappie(struct ieee80211_appie **aie, const struct ieee80211req *ireq)
2318 {
2319         struct ieee80211_appie *app = *aie;
2320         struct ieee80211_appie *napp;
2321         int error;
2322
2323         if (ireq->i_len == 0) {         /* delete any existing ie */
2324                 if (app != NULL) {
2325                         *aie = NULL;    /* XXX racey */
2326                         IEEE80211_FREE(app, M_80211_NODE_IE);
2327                 }
2328                 return 0;
2329         }
2330         if (!(2 <= ireq->i_len && ireq->i_len <= IEEE80211_MAX_APPIE))
2331                 return EINVAL;
2332         /*
2333          * Allocate a new appie structure and copy in the user data.
2334          * When done swap in the new structure.  Note that we do not
2335          * guard against users holding a ref to the old structure;
2336          * this must be handled outside this code.
2337          *
2338          * XXX bad bad bad
2339          */
2340         napp = (struct ieee80211_appie *) IEEE80211_MALLOC(
2341             sizeof(struct ieee80211_appie) + ireq->i_len, M_80211_NODE_IE,
2342             IEEE80211_M_NOWAIT);
2343         if (napp == NULL)
2344                 return ENOMEM;
2345         /* XXX holding ic lock */
2346         error = copyin(ireq->i_data, napp->ie_data, ireq->i_len);
2347         if (error) {
2348                 IEEE80211_FREE(napp, M_80211_NODE_IE);
2349                 return error;
2350         }
2351         napp->ie_len = ireq->i_len;
2352         *aie = napp;
2353         if (app != NULL)
2354                 IEEE80211_FREE(app, M_80211_NODE_IE);
2355         return 0;
2356 }
2357
2358 static void
2359 setwparsnie(struct ieee80211vap *vap, uint8_t *ie, int space)
2360 {
2361         /* validate data is present as best we can */
2362         if (space == 0 || 2+ie[1] > space)
2363                 return;
2364         if (ie[0] == IEEE80211_ELEMID_VENDOR)
2365                 vap->iv_wpa_ie = ie;
2366         else if (ie[0] == IEEE80211_ELEMID_RSN)
2367                 vap->iv_rsn_ie = ie;
2368 }
2369
2370 static int
2371 ieee80211_ioctl_setappie_locked(struct ieee80211vap *vap,
2372         const struct ieee80211req *ireq, int fc0)
2373 {
2374         int error;
2375
2376         IEEE80211_LOCK_ASSERT(vap->iv_ic);
2377
2378         switch (fc0 & IEEE80211_FC0_SUBTYPE_MASK) {
2379         case IEEE80211_FC0_SUBTYPE_BEACON:
2380                 if (vap->iv_opmode != IEEE80211_M_HOSTAP &&
2381                     vap->iv_opmode != IEEE80211_M_IBSS) {
2382                         error = EINVAL;
2383                         break;
2384                 }
2385                 error = setappie(&vap->iv_appie_beacon, ireq);
2386                 if (error == 0)
2387                         ieee80211_beacon_notify(vap, IEEE80211_BEACON_APPIE);
2388                 break;
2389         case IEEE80211_FC0_SUBTYPE_PROBE_RESP:
2390                 error = setappie(&vap->iv_appie_proberesp, ireq);
2391                 break;
2392         case IEEE80211_FC0_SUBTYPE_ASSOC_RESP:
2393                 if (vap->iv_opmode == IEEE80211_M_HOSTAP)
2394                         error = setappie(&vap->iv_appie_assocresp, ireq);
2395                 else
2396                         error = EINVAL;
2397                 break;
2398         case IEEE80211_FC0_SUBTYPE_PROBE_REQ:
2399                 error = setappie(&vap->iv_appie_probereq, ireq);
2400                 break;
2401         case IEEE80211_FC0_SUBTYPE_ASSOC_REQ:
2402                 if (vap->iv_opmode == IEEE80211_M_STA)
2403                         error = setappie(&vap->iv_appie_assocreq, ireq);
2404                 else
2405                         error = EINVAL;
2406                 break;
2407         case (IEEE80211_APPIE_WPA & IEEE80211_FC0_SUBTYPE_MASK):
2408                 error = setappie(&vap->iv_appie_wpa, ireq);
2409                 if (error == 0) {
2410                         /*
2411                          * Must split single blob of data into separate
2412                          * WPA and RSN ie's because they go in different
2413                          * locations in the mgt frames.
2414                          * XXX use IEEE80211_IOC_WPA2 so user code does split
2415                          */
2416                         vap->iv_wpa_ie = NULL;
2417                         vap->iv_rsn_ie = NULL;
2418                         if (vap->iv_appie_wpa != NULL) {
2419                                 struct ieee80211_appie *appie =
2420                                     vap->iv_appie_wpa;
2421                                 uint8_t *data = appie->ie_data;
2422
2423                                 /* XXX ie length validate is painful, cheat */
2424                                 setwparsnie(vap, data, appie->ie_len);
2425                                 setwparsnie(vap, data + 2 + data[1],
2426                                     appie->ie_len - (2 + data[1]));
2427                         }
2428                         if (vap->iv_opmode == IEEE80211_M_HOSTAP ||
2429                             vap->iv_opmode == IEEE80211_M_IBSS) {
2430                                 /*
2431                                  * Must rebuild beacon frame as the update
2432                                  * mechanism doesn't handle WPA/RSN ie's.
2433                                  * Could extend it but it doesn't normally
2434                                  * change; this is just to deal with hostapd
2435                                  * plumbing the ie after the interface is up.
2436                                  */
2437                                 error = ENETRESET;
2438                         }
2439                 }
2440                 break;
2441         default:
2442                 error = EINVAL;
2443                 break;
2444         }
2445         return error;
2446 }
2447
2448 static int
2449 ieee80211_ioctl_setappie(struct ieee80211vap *vap,
2450         const struct ieee80211req *ireq)
2451 {
2452         struct ieee80211com *ic = vap->iv_ic;
2453         int error;
2454         uint8_t fc0;
2455
2456         fc0 = ireq->i_val & 0xff;
2457         if ((fc0 & IEEE80211_FC0_TYPE_MASK) != IEEE80211_FC0_TYPE_MGT)
2458                 return EINVAL;
2459         /* NB: could check iv_opmode and reject but hardly worth the effort */
2460         IEEE80211_LOCK(ic);
2461         error = ieee80211_ioctl_setappie_locked(vap, ireq, fc0);
2462         IEEE80211_UNLOCK(ic);
2463         return error;
2464 }
2465
2466 static int
2467 ieee80211_ioctl_chanswitch(struct ieee80211vap *vap, struct ieee80211req *ireq)
2468 {
2469         struct ieee80211com *ic = vap->iv_ic;
2470         struct ieee80211_chanswitch_req csr;
2471         struct ieee80211_channel *c;
2472         int error;
2473
2474         if (ireq->i_len != sizeof(csr))
2475                 return EINVAL;
2476         error = copyin(ireq->i_data, &csr, sizeof(csr));
2477         if (error != 0)
2478                 return error;
2479         /* XXX adhoc mode not supported */
2480         if (vap->iv_opmode != IEEE80211_M_HOSTAP ||
2481             (vap->iv_flags & IEEE80211_F_DOTH) == 0)
2482                 return EOPNOTSUPP;
2483         c = ieee80211_find_channel(ic,
2484             csr.csa_chan.ic_freq, csr.csa_chan.ic_flags);
2485         if (c == NULL)
2486                 return ENOENT;
2487         IEEE80211_LOCK(ic);
2488         if ((ic->ic_flags & IEEE80211_F_CSAPENDING) == 0)
2489                 ieee80211_csa_startswitch(ic, c, csr.csa_mode, csr.csa_count);
2490         else if (csr.csa_count == 0)
2491                 ieee80211_csa_cancelswitch(ic);
2492         else
2493                 error = EBUSY;
2494         IEEE80211_UNLOCK(ic);
2495         return error;
2496 }
2497
2498 static int
2499 ieee80211_scanreq(struct ieee80211vap *vap, struct ieee80211_scan_req *sr)
2500 {
2501 #define IEEE80211_IOC_SCAN_FLAGS \
2502         (IEEE80211_IOC_SCAN_NOPICK | IEEE80211_IOC_SCAN_ACTIVE | \
2503          IEEE80211_IOC_SCAN_PICK1ST | IEEE80211_IOC_SCAN_BGSCAN | \
2504          IEEE80211_IOC_SCAN_ONCE | IEEE80211_IOC_SCAN_NOBCAST | \
2505          IEEE80211_IOC_SCAN_NOJOIN | IEEE80211_IOC_SCAN_FLUSH | \
2506          IEEE80211_IOC_SCAN_CHECK)
2507         struct ieee80211com *ic = vap->iv_ic;
2508         int error, i;
2509
2510         /* convert duration */
2511         if (sr->sr_duration == IEEE80211_IOC_SCAN_FOREVER)
2512                 sr->sr_duration = IEEE80211_SCAN_FOREVER;
2513         else {
2514                 if (sr->sr_duration < IEEE80211_IOC_SCAN_DURATION_MIN ||
2515                     sr->sr_duration > IEEE80211_IOC_SCAN_DURATION_MAX)
2516                         return EINVAL;
2517                 sr->sr_duration = msecs_to_ticks(sr->sr_duration);
2518                 if (sr->sr_duration < 1)
2519                         sr->sr_duration = 1;
2520         }
2521         /* convert min/max channel dwell */
2522         if (sr->sr_mindwell != 0) {
2523                 sr->sr_mindwell = msecs_to_ticks(sr->sr_mindwell);
2524                 if (sr->sr_mindwell < 1)
2525                         sr->sr_mindwell = 1;
2526         }
2527         if (sr->sr_maxdwell != 0) {
2528                 sr->sr_maxdwell = msecs_to_ticks(sr->sr_maxdwell);
2529                 if (sr->sr_maxdwell < 1)
2530                         sr->sr_maxdwell = 1;
2531         }
2532         /* NB: silently reduce ssid count to what is supported */
2533         if (sr->sr_nssid > IEEE80211_SCAN_MAX_SSID)
2534                 sr->sr_nssid = IEEE80211_SCAN_MAX_SSID;
2535         for (i = 0; i < sr->sr_nssid; i++)
2536                 if (sr->sr_ssid[i].len > IEEE80211_NWID_LEN)
2537                         return EINVAL;
2538         /* cleanse flags just in case, could reject if invalid flags */
2539         sr->sr_flags &= IEEE80211_IOC_SCAN_FLAGS;
2540         /*
2541          * Add an implicit NOPICK if the vap is not marked UP.  This
2542          * allows applications to scan without joining a bss (or picking
2543          * a channel and setting up a bss) and without forcing manual
2544          * roaming mode--you just need to mark the parent device UP.
2545          */
2546         if ((vap->iv_ifp->if_flags & IFF_UP) == 0)
2547                 sr->sr_flags |= IEEE80211_IOC_SCAN_NOPICK;
2548
2549         IEEE80211_DPRINTF(vap, IEEE80211_MSG_SCAN,
2550             "%s: flags 0x%x%s duration 0x%x mindwell %u maxdwell %u nssid %d\n",
2551             __func__, sr->sr_flags,
2552             (vap->iv_ifp->if_flags & IFF_UP) == 0 ? " (!IFF_UP)" : "",
2553             sr->sr_duration, sr->sr_mindwell, sr->sr_maxdwell, sr->sr_nssid);
2554         /*
2555          * If we are in INIT state then the driver has never had a chance
2556          * to setup hardware state to do a scan; we must use the state
2557          * machine to get us up to the SCAN state but once we reach SCAN
2558          * state we then want to use the supplied params.  Stash the
2559          * parameters in the vap and mark IEEE80211_FEXT_SCANREQ; the
2560          * state machines will recognize this and use the stashed params
2561          * to issue the scan request.
2562          *
2563          * Otherwise just invoke the scan machinery directly.
2564          */
2565         IEEE80211_LOCK(ic);
2566         if (ic->ic_nrunning == 0) {
2567                 IEEE80211_UNLOCK(ic);
2568                 return ENXIO;
2569         }
2570
2571         if (vap->iv_state == IEEE80211_S_INIT) {
2572                 /* NB: clobbers previous settings */
2573                 vap->iv_scanreq_flags = sr->sr_flags;
2574                 vap->iv_scanreq_duration = sr->sr_duration;
2575                 vap->iv_scanreq_nssid = sr->sr_nssid;
2576                 for (i = 0; i < sr->sr_nssid; i++) {
2577                         vap->iv_scanreq_ssid[i].len = sr->sr_ssid[i].len;
2578                         memcpy(vap->iv_scanreq_ssid[i].ssid,
2579                             sr->sr_ssid[i].ssid, sr->sr_ssid[i].len);
2580                 }
2581                 vap->iv_flags_ext |= IEEE80211_FEXT_SCANREQ;
2582                 IEEE80211_UNLOCK(ic);
2583                 ieee80211_new_state(vap, IEEE80211_S_SCAN, 0);
2584         } else {
2585                 vap->iv_flags_ext &= ~IEEE80211_FEXT_SCANREQ;
2586                 IEEE80211_UNLOCK(ic);
2587                 if (sr->sr_flags & IEEE80211_IOC_SCAN_CHECK) {
2588                         error = ieee80211_check_scan(vap, sr->sr_flags,
2589                             sr->sr_duration, sr->sr_mindwell, sr->sr_maxdwell,
2590                             sr->sr_nssid,
2591                             /* NB: cheat, we assume structures are compatible */
2592                             (const struct ieee80211_scan_ssid *) &sr->sr_ssid[0]);
2593                 } else {
2594                         error = ieee80211_start_scan(vap, sr->sr_flags,
2595                             sr->sr_duration, sr->sr_mindwell, sr->sr_maxdwell,
2596                             sr->sr_nssid,
2597                             /* NB: cheat, we assume structures are compatible */
2598                             (const struct ieee80211_scan_ssid *) &sr->sr_ssid[0]);
2599                 }
2600                 if (error == 0)
2601                         return EINPROGRESS;
2602         }
2603         return 0;
2604 #undef IEEE80211_IOC_SCAN_FLAGS
2605 }
2606
2607 static int
2608 ieee80211_ioctl_scanreq(struct ieee80211vap *vap, struct ieee80211req *ireq)
2609 {
2610         struct ieee80211_scan_req *sr;
2611         int error;
2612
2613         if (ireq->i_len != sizeof(*sr))
2614                 return EINVAL;
2615         sr = IEEE80211_MALLOC(sizeof(*sr), M_TEMP,
2616              IEEE80211_M_NOWAIT | IEEE80211_M_ZERO);
2617         if (sr == NULL)
2618                 return ENOMEM;
2619         error = copyin(ireq->i_data, sr, sizeof(*sr));
2620         if (error != 0)
2621                 goto bad;
2622         error = ieee80211_scanreq(vap, sr);
2623 bad:
2624         IEEE80211_FREE(sr, M_TEMP);
2625         return error;
2626 }
2627
2628 static int
2629 ieee80211_ioctl_setstavlan(struct ieee80211vap *vap, struct ieee80211req *ireq)
2630 {
2631         struct ieee80211_node *ni;
2632         struct ieee80211req_sta_vlan vlan;
2633         int error;
2634
2635         if (ireq->i_len != sizeof(vlan))
2636                 return EINVAL;
2637         error = copyin(ireq->i_data, &vlan, sizeof(vlan));
2638         if (error != 0)
2639                 return error;
2640         if (!IEEE80211_ADDR_EQ(vlan.sv_macaddr, zerobssid)) {
2641                 ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap,
2642                     vlan.sv_macaddr);
2643                 if (ni == NULL)
2644                         return ENOENT;
2645         } else
2646                 ni = ieee80211_ref_node(vap->iv_bss);
2647         ni->ni_vlan = vlan.sv_vlan;
2648         ieee80211_free_node(ni);
2649         return error;
2650 }
2651
2652 static int
2653 isvap11g(const struct ieee80211vap *vap)
2654 {
2655         const struct ieee80211_node *bss = vap->iv_bss;
2656         return bss->ni_chan != IEEE80211_CHAN_ANYC &&
2657             IEEE80211_IS_CHAN_ANYG(bss->ni_chan);
2658 }
2659
2660 static int
2661 isvapht(const struct ieee80211vap *vap)
2662 {
2663         const struct ieee80211_node *bss = vap->iv_bss;
2664         return bss->ni_chan != IEEE80211_CHAN_ANYC &&
2665             IEEE80211_IS_CHAN_HT(bss->ni_chan);
2666 }
2667
2668 /*
2669  * Dummy ioctl set handler so the linker set is defined.
2670  */
2671 static int
2672 dummy_ioctl_set(struct ieee80211vap *vap, struct ieee80211req *ireq)
2673 {
2674         return ENOSYS;
2675 }
2676 IEEE80211_IOCTL_SET(dummy, dummy_ioctl_set);
2677
2678 static int
2679 ieee80211_ioctl_setdefault(struct ieee80211vap *vap, struct ieee80211req *ireq)
2680 {
2681         ieee80211_ioctl_setfunc * const *set;
2682         int error;
2683
2684         SET_FOREACH(set, ieee80211_ioctl_setset) {
2685                 error = (*set)(vap, ireq);
2686                 if (error != ENOSYS)
2687                         return error;
2688         }
2689         return EINVAL;
2690 }
2691
2692 static int
2693 ieee80211_ioctl_set80211(struct ieee80211vap *vap, u_long cmd, struct ieee80211req *ireq)
2694 {
2695         struct ieee80211com *ic = vap->iv_ic;
2696         int error;
2697         const struct ieee80211_authenticator *auth;
2698         uint8_t tmpkey[IEEE80211_KEYBUF_SIZE];
2699         char tmpssid[IEEE80211_NWID_LEN];
2700         uint8_t tmpbssid[IEEE80211_ADDR_LEN];
2701         struct ieee80211_key *k;
2702         u_int kid;
2703         uint32_t flags;
2704
2705         error = 0;
2706         switch (ireq->i_type) {
2707         case IEEE80211_IOC_SSID:
2708                 if (ireq->i_val != 0 ||
2709                     ireq->i_len > IEEE80211_NWID_LEN)
2710                         return EINVAL;
2711                 error = copyin(ireq->i_data, tmpssid, ireq->i_len);
2712                 if (error)
2713                         break;
2714                 memset(vap->iv_des_ssid[0].ssid, 0, IEEE80211_NWID_LEN);
2715                 vap->iv_des_ssid[0].len = ireq->i_len;
2716                 memcpy(vap->iv_des_ssid[0].ssid, tmpssid, ireq->i_len);
2717                 vap->iv_des_nssid = (ireq->i_len > 0);
2718                 error = ENETRESET;
2719                 break;
2720         case IEEE80211_IOC_WEP:
2721                 switch (ireq->i_val) {
2722                 case IEEE80211_WEP_OFF:
2723                         vap->iv_flags &= ~IEEE80211_F_PRIVACY;
2724                         vap->iv_flags &= ~IEEE80211_F_DROPUNENC;
2725                         break;
2726                 case IEEE80211_WEP_ON:
2727                         vap->iv_flags |= IEEE80211_F_PRIVACY;
2728                         vap->iv_flags |= IEEE80211_F_DROPUNENC;
2729                         break;
2730                 case IEEE80211_WEP_MIXED:
2731                         vap->iv_flags |= IEEE80211_F_PRIVACY;
2732                         vap->iv_flags &= ~IEEE80211_F_DROPUNENC;
2733                         break;
2734                 }
2735                 error = ENETRESET;
2736                 break;
2737         case IEEE80211_IOC_WEPKEY:
2738                 kid = (u_int) ireq->i_val;
2739                 if (kid >= IEEE80211_WEP_NKID)
2740                         return EINVAL;
2741                 k = &vap->iv_nw_keys[kid];
2742                 if (ireq->i_len == 0) {
2743                         /* zero-len =>'s delete any existing key */
2744                         (void) ieee80211_crypto_delkey(vap, k);
2745                         break;
2746                 }
2747                 if (ireq->i_len > sizeof(tmpkey))
2748                         return EINVAL;
2749                 memset(tmpkey, 0, sizeof(tmpkey));
2750                 error = copyin(ireq->i_data, tmpkey, ireq->i_len);
2751                 if (error)
2752                         break;
2753                 ieee80211_key_update_begin(vap);
2754                 k->wk_keyix = kid;      /* NB: force fixed key id */
2755                 if (ieee80211_crypto_newkey(vap, IEEE80211_CIPHER_WEP,
2756                     IEEE80211_KEY_XMIT | IEEE80211_KEY_RECV, k)) {
2757                         k->wk_keylen = ireq->i_len;
2758                         memcpy(k->wk_key, tmpkey, sizeof(tmpkey));
2759                         IEEE80211_ADDR_COPY(k->wk_macaddr, vap->iv_myaddr);
2760                         if  (!ieee80211_crypto_setkey(vap, k))
2761                                 error = EINVAL;
2762                 } else
2763                         error = EINVAL;
2764                 ieee80211_key_update_end(vap);
2765                 break;
2766         case IEEE80211_IOC_WEPTXKEY:
2767                 kid = (u_int) ireq->i_val;
2768                 if (kid >= IEEE80211_WEP_NKID &&
2769                     (uint16_t) kid != IEEE80211_KEYIX_NONE)
2770                         return EINVAL;
2771                 /*
2772                  * Firmware devices may need to be told about an explicit
2773                  * key index here, versus just inferring it from the
2774                  * key set / change.  Since we may also need to pause
2775                  * things like transmit before the key is updated,
2776                  * give the driver a chance to flush things by tying
2777                  * into key update begin/end.
2778                  */
2779                 ieee80211_key_update_begin(vap);
2780                 ieee80211_crypto_set_deftxkey(vap, kid);
2781                 ieee80211_key_update_end(vap);
2782                 break;
2783         case IEEE80211_IOC_AUTHMODE:
2784                 switch (ireq->i_val) {
2785                 case IEEE80211_AUTH_WPA:
2786                 case IEEE80211_AUTH_8021X:      /* 802.1x */
2787                 case IEEE80211_AUTH_OPEN:       /* open */
2788                 case IEEE80211_AUTH_SHARED:     /* shared-key */
2789                 case IEEE80211_AUTH_AUTO:       /* auto */
2790                         auth = ieee80211_authenticator_get(ireq->i_val);
2791                         if (auth == NULL)
2792                                 return EINVAL;
2793                         break;
2794                 default:
2795                         return EINVAL;
2796                 }
2797                 switch (ireq->i_val) {
2798                 case IEEE80211_AUTH_WPA:        /* WPA w/ 802.1x */
2799                         vap->iv_flags |= IEEE80211_F_PRIVACY;
2800                         ireq->i_val = IEEE80211_AUTH_8021X;
2801                         break;
2802                 case IEEE80211_AUTH_OPEN:       /* open */
2803                         vap->iv_flags &= ~(IEEE80211_F_WPA|IEEE80211_F_PRIVACY);
2804                         break;
2805                 case IEEE80211_AUTH_SHARED:     /* shared-key */
2806                 case IEEE80211_AUTH_8021X:      /* 802.1x */
2807                         vap->iv_flags &= ~IEEE80211_F_WPA;
2808                         /* both require a key so mark the PRIVACY capability */
2809                         vap->iv_flags |= IEEE80211_F_PRIVACY;
2810                         break;
2811                 case IEEE80211_AUTH_AUTO:       /* auto */
2812                         vap->iv_flags &= ~IEEE80211_F_WPA;
2813                         /* XXX PRIVACY handling? */
2814                         /* XXX what's the right way to do this? */
2815                         break;
2816                 }
2817                 /* NB: authenticator attach/detach happens on state change */
2818                 vap->iv_bss->ni_authmode = ireq->i_val;
2819                 /* XXX mixed/mode/usage? */
2820                 vap->iv_auth = auth;
2821                 error = ENETRESET;
2822                 break;
2823         case IEEE80211_IOC_CHANNEL:
2824                 error = ieee80211_ioctl_setchannel(vap, ireq);
2825                 break;
2826         case IEEE80211_IOC_POWERSAVE:
2827                 switch (ireq->i_val) {
2828                 case IEEE80211_POWERSAVE_OFF:
2829                         if (vap->iv_flags & IEEE80211_F_PMGTON) {
2830                                 ieee80211_syncflag(vap, -IEEE80211_F_PMGTON);
2831                                 error = ERESTART;
2832                         }
2833                         break;
2834                 case IEEE80211_POWERSAVE_ON:
2835                         if ((vap->iv_caps & IEEE80211_C_PMGT) == 0)
2836                                 error = EOPNOTSUPP;
2837                         else if ((vap->iv_flags & IEEE80211_F_PMGTON) == 0) {
2838                                 ieee80211_syncflag(vap, IEEE80211_F_PMGTON);
2839                                 error = ERESTART;
2840                         }
2841                         break;
2842                 default:
2843                         error = EINVAL;
2844                         break;
2845                 }
2846                 break;
2847         case IEEE80211_IOC_POWERSAVESLEEP:
2848                 if (ireq->i_val < 0)
2849                         return EINVAL;
2850                 ic->ic_lintval = ireq->i_val;
2851                 error = ERESTART;
2852                 break;
2853         case IEEE80211_IOC_RTSTHRESHOLD:
2854                 if (!(IEEE80211_RTS_MIN <= ireq->i_val &&
2855                       ireq->i_val <= IEEE80211_RTS_MAX))
2856                         return EINVAL;
2857                 vap->iv_rtsthreshold = ireq->i_val;
2858                 error = ERESTART;
2859                 break;
2860         case IEEE80211_IOC_PROTMODE:
2861                 if (ireq->i_val > IEEE80211_PROT_RTSCTS)
2862                         return EINVAL;
2863                 ic->ic_protmode = (enum ieee80211_protmode)ireq->i_val;
2864                 /* NB: if not operating in 11g this can wait */
2865                 if (ic->ic_bsschan != IEEE80211_CHAN_ANYC &&
2866                     IEEE80211_IS_CHAN_ANYG(ic->ic_bsschan))
2867                         error = ERESTART;
2868                 break;
2869         case IEEE80211_IOC_TXPOWER:
2870                 if ((ic->ic_caps & IEEE80211_C_TXPMGT) == 0)
2871                         return EOPNOTSUPP;
2872                 if (!(IEEE80211_TXPOWER_MIN <= ireq->i_val &&
2873                       ireq->i_val <= IEEE80211_TXPOWER_MAX))
2874                         return EINVAL;
2875                 ic->ic_txpowlimit = ireq->i_val;
2876                 error = ERESTART;
2877                 break;
2878         case IEEE80211_IOC_ROAMING:
2879                 if (!(IEEE80211_ROAMING_DEVICE <= ireq->i_val &&
2880                     ireq->i_val <= IEEE80211_ROAMING_MANUAL))
2881                         return EINVAL;
2882                 vap->iv_roaming = (enum ieee80211_roamingmode)ireq->i_val;
2883                 /* XXXX reset? */
2884                 break;
2885         case IEEE80211_IOC_PRIVACY:
2886                 if (ireq->i_val) {
2887                         /* XXX check for key state? */
2888                         vap->iv_flags |= IEEE80211_F_PRIVACY;
2889                 } else
2890                         vap->iv_flags &= ~IEEE80211_F_PRIVACY;
2891                 /* XXX ERESTART? */
2892                 break;
2893         case IEEE80211_IOC_DROPUNENCRYPTED:
2894                 if (ireq->i_val)
2895                         vap->iv_flags |= IEEE80211_F_DROPUNENC;
2896                 else
2897                         vap->iv_flags &= ~IEEE80211_F_DROPUNENC;
2898                 /* XXX ERESTART? */
2899                 break;
2900         case IEEE80211_IOC_WPAKEY:
2901                 error = ieee80211_ioctl_setkey(vap, ireq);
2902                 break;
2903         case IEEE80211_IOC_DELKEY:
2904                 error = ieee80211_ioctl_delkey(vap, ireq);
2905                 break;
2906         case IEEE80211_IOC_MLME:
2907                 error = ieee80211_ioctl_setmlme(vap, ireq);
2908                 break;
2909         case IEEE80211_IOC_COUNTERMEASURES:
2910                 if (ireq->i_val) {
2911                         if ((vap->iv_flags & IEEE80211_F_WPA) == 0)
2912                                 return EOPNOTSUPP;
2913                         vap->iv_flags |= IEEE80211_F_COUNTERM;
2914                 } else
2915                         vap->iv_flags &= ~IEEE80211_F_COUNTERM;
2916                 /* XXX ERESTART? */
2917                 break;
2918         case IEEE80211_IOC_WPA:
2919                 if (ireq->i_val > 3)
2920                         return EINVAL;
2921                 /* XXX verify ciphers available */
2922                 flags = vap->iv_flags & ~IEEE80211_F_WPA;
2923                 switch (ireq->i_val) {
2924                 case 0:
2925                         /* wpa_supplicant calls this to clear the WPA config */
2926                         break;
2927                 case 1:
2928                         if (!(vap->iv_caps & IEEE80211_C_WPA1))
2929                                 return EOPNOTSUPP;
2930                         flags |= IEEE80211_F_WPA1;
2931                         break;
2932                 case 2:
2933                         if (!(vap->iv_caps & IEEE80211_C_WPA2))
2934                                 return EOPNOTSUPP;
2935                         flags |= IEEE80211_F_WPA2;
2936                         break;
2937                 case 3:
2938                         if ((vap->iv_caps & IEEE80211_C_WPA) != IEEE80211_C_WPA)
2939                                 return EOPNOTSUPP;
2940                         flags |= IEEE80211_F_WPA1 | IEEE80211_F_WPA2;
2941                         break;
2942                 default:        /*  Can't set any -> error */
2943                         return EOPNOTSUPP;
2944                 }
2945                 vap->iv_flags = flags;
2946                 error = ERESTART;       /* NB: can change beacon frame */
2947                 break;
2948         case IEEE80211_IOC_WME:
2949                 if (ireq->i_val) {
2950                         if ((vap->iv_caps & IEEE80211_C_WME) == 0)
2951                                 return EOPNOTSUPP;
2952                         ieee80211_syncflag(vap, IEEE80211_F_WME);
2953                 } else
2954                         ieee80211_syncflag(vap, -IEEE80211_F_WME);
2955                 error = ERESTART;       /* NB: can change beacon frame */
2956                 break;
2957         case IEEE80211_IOC_HIDESSID:
2958                 if (ireq->i_val)
2959                         vap->iv_flags |= IEEE80211_F_HIDESSID;
2960                 else
2961                         vap->iv_flags &= ~IEEE80211_F_HIDESSID;
2962                 error = ERESTART;               /* XXX ENETRESET? */
2963                 break;
2964         case IEEE80211_IOC_APBRIDGE:
2965                 if (ireq->i_val == 0)
2966                         vap->iv_flags |= IEEE80211_F_NOBRIDGE;
2967                 else
2968                         vap->iv_flags &= ~IEEE80211_F_NOBRIDGE;
2969                 break;
2970         case IEEE80211_IOC_BSSID:
2971                 if (ireq->i_len != sizeof(tmpbssid))
2972                         return EINVAL;
2973                 error = copyin(ireq->i_data, tmpbssid, ireq->i_len);
2974                 if (error)
2975                         break;
2976                 IEEE80211_ADDR_COPY(vap->iv_des_bssid, tmpbssid);
2977                 if (IEEE80211_ADDR_EQ(vap->iv_des_bssid, zerobssid))
2978                         vap->iv_flags &= ~IEEE80211_F_DESBSSID;
2979                 else
2980                         vap->iv_flags |= IEEE80211_F_DESBSSID;
2981                 error = ENETRESET;
2982                 break;
2983         case IEEE80211_IOC_CHANLIST:
2984                 error = ieee80211_ioctl_setchanlist(vap, ireq);
2985                 break;
2986 #define OLD_IEEE80211_IOC_SCAN_REQ      23
2987 #ifdef OLD_IEEE80211_IOC_SCAN_REQ
2988         case OLD_IEEE80211_IOC_SCAN_REQ:
2989                 IEEE80211_DPRINTF(vap, IEEE80211_MSG_SCAN,
2990                         "%s: active scan request\n", __func__);
2991                 /*
2992                  * If we are in INIT state then the driver has never
2993                  * had a chance to setup hardware state to do a scan;
2994                  * use the state machine to get us up the SCAN state.
2995                  * Otherwise just invoke the scan machinery to start
2996                  * a one-time scan.
2997                  */
2998                 if (vap->iv_state == IEEE80211_S_INIT)
2999                         ieee80211_new_state(vap, IEEE80211_S_SCAN, 0);
3000                 else
3001                         (void) ieee80211_start_scan(vap,
3002                                 IEEE80211_SCAN_ACTIVE |
3003                                 IEEE80211_SCAN_NOPICK |
3004                                 IEEE80211_SCAN_ONCE,
3005                                 IEEE80211_SCAN_FOREVER, 0, 0,
3006                                 /* XXX use ioctl params */
3007                                 vap->iv_des_nssid, vap->iv_des_ssid);
3008                 break;
3009 #endif /* OLD_IEEE80211_IOC_SCAN_REQ */
3010         case IEEE80211_IOC_SCAN_REQ:
3011                 error = ieee80211_ioctl_scanreq(vap, ireq);
3012                 break;
3013         case IEEE80211_IOC_SCAN_CANCEL:
3014                 IEEE80211_DPRINTF(vap, IEEE80211_MSG_SCAN,
3015                     "%s: cancel scan\n", __func__);
3016                 ieee80211_cancel_scan(vap);
3017                 break;
3018         case IEEE80211_IOC_HTCONF:
3019                 if (ireq->i_val & 1)
3020                         ieee80211_syncflag_ht(vap, IEEE80211_FHT_HT);
3021                 else
3022                         ieee80211_syncflag_ht(vap, -IEEE80211_FHT_HT);
3023                 if (ireq->i_val & 2)
3024                         ieee80211_syncflag_ht(vap, IEEE80211_FHT_USEHT40);
3025                 else
3026                         ieee80211_syncflag_ht(vap, -IEEE80211_FHT_USEHT40);
3027                 error = ENETRESET;
3028                 break;
3029         case IEEE80211_IOC_ADDMAC:
3030         case IEEE80211_IOC_DELMAC:
3031                 error = ieee80211_ioctl_macmac(vap, ireq);
3032                 break;
3033         case IEEE80211_IOC_MACCMD:
3034                 error = ieee80211_ioctl_setmaccmd(vap, ireq);
3035                 break;
3036         case IEEE80211_IOC_STA_STATS:
3037                 error = ieee80211_ioctl_setstastats(vap, ireq);
3038                 break;
3039         case IEEE80211_IOC_STA_TXPOW:
3040                 error = ieee80211_ioctl_setstatxpow(vap, ireq);
3041                 break;
3042         case IEEE80211_IOC_WME_CWMIN:           /* WME: CWmin */
3043         case IEEE80211_IOC_WME_CWMAX:           /* WME: CWmax */
3044         case IEEE80211_IOC_WME_AIFS:            /* WME: AIFS */
3045         case IEEE80211_IOC_WME_TXOPLIMIT:       /* WME: txops limit */
3046         case IEEE80211_IOC_WME_ACM:             /* WME: ACM (bss only) */
3047         case IEEE80211_IOC_WME_ACKPOLICY:       /* WME: ACK policy (!bss only) */
3048                 error = ieee80211_ioctl_setwmeparam(vap, ireq);
3049                 break;
3050         case IEEE80211_IOC_DTIM_PERIOD:
3051                 if (vap->iv_opmode != IEEE80211_M_HOSTAP &&
3052                     vap->iv_opmode != IEEE80211_M_MBSS &&
3053                     vap->iv_opmode != IEEE80211_M_IBSS)
3054                         return EINVAL;
3055                 if (IEEE80211_DTIM_MIN <= ireq->i_val &&
3056                     ireq->i_val <= IEEE80211_DTIM_MAX) {
3057                         vap->iv_dtim_period = ireq->i_val;
3058                         error = ENETRESET;              /* requires restart */
3059                 } else
3060                         error = EINVAL;
3061                 break;
3062         case IEEE80211_IOC_BEACON_INTERVAL:
3063                 if (vap->iv_opmode != IEEE80211_M_HOSTAP &&
3064                     vap->iv_opmode != IEEE80211_M_MBSS &&
3065                     vap->iv_opmode != IEEE80211_M_IBSS)
3066                         return EINVAL;
3067                 if (IEEE80211_BINTVAL_MIN <= ireq->i_val &&
3068                     ireq->i_val <= IEEE80211_BINTVAL_MAX) {
3069                         ic->ic_bintval = ireq->i_val;
3070                         error = ENETRESET;              /* requires restart */
3071                 } else
3072                         error = EINVAL;
3073                 break;
3074         case IEEE80211_IOC_PUREG:
3075                 if (ireq->i_val)
3076                         vap->iv_flags |= IEEE80211_F_PUREG;
3077                 else
3078                         vap->iv_flags &= ~IEEE80211_F_PUREG;
3079                 /* NB: reset only if we're operating on an 11g channel */
3080                 if (isvap11g(vap))
3081                         error = ENETRESET;
3082                 break;
3083         case IEEE80211_IOC_QUIET:
3084                 vap->iv_quiet= ireq->i_val;
3085                 break;
3086         case IEEE80211_IOC_QUIET_COUNT:
3087                 vap->iv_quiet_count=ireq->i_val;
3088                 break;
3089         case IEEE80211_IOC_QUIET_PERIOD:
3090                 vap->iv_quiet_period=ireq->i_val;
3091                 break;
3092         case IEEE80211_IOC_QUIET_OFFSET:
3093                 vap->iv_quiet_offset=ireq->i_val;
3094                 break;
3095         case IEEE80211_IOC_QUIET_DUR:
3096                 if(ireq->i_val < vap->iv_bss->ni_intval)
3097                         vap->iv_quiet_duration = ireq->i_val;
3098                 else
3099                         error = EINVAL;
3100                 break;
3101         case IEEE80211_IOC_BGSCAN:
3102                 if (ireq->i_val) {
3103                         if ((vap->iv_caps & IEEE80211_C_BGSCAN) == 0)
3104                                 return EOPNOTSUPP;
3105                         vap->iv_flags |= IEEE80211_F_BGSCAN;
3106                 } else
3107                         vap->iv_flags &= ~IEEE80211_F_BGSCAN;
3108                 break;
3109         case IEEE80211_IOC_BGSCAN_IDLE:
3110                 if (ireq->i_val >= IEEE80211_BGSCAN_IDLE_MIN)
3111                         vap->iv_bgscanidle = ireq->i_val*hz/1000;
3112                 else
3113                         error = EINVAL;
3114                 break;
3115         case IEEE80211_IOC_BGSCAN_INTERVAL:
3116                 if (ireq->i_val >= IEEE80211_BGSCAN_INTVAL_MIN)
3117                         vap->iv_bgscanintvl = ireq->i_val*hz;
3118                 else
3119                         error = EINVAL;
3120                 break;
3121         case IEEE80211_IOC_SCANVALID:
3122                 if (ireq->i_val >= IEEE80211_SCAN_VALID_MIN)
3123                         vap->iv_scanvalid = ireq->i_val*hz;
3124                 else
3125                         error = EINVAL;
3126                 break;
3127         case IEEE80211_IOC_FRAGTHRESHOLD:
3128                 if ((vap->iv_caps & IEEE80211_C_TXFRAG) == 0 &&
3129                     ireq->i_val != IEEE80211_FRAG_MAX)
3130                         return EOPNOTSUPP;
3131                 if (!(IEEE80211_FRAG_MIN <= ireq->i_val &&
3132                       ireq->i_val <= IEEE80211_FRAG_MAX))
3133                         return EINVAL;
3134                 vap->iv_fragthreshold = ireq->i_val;
3135                 error = ERESTART;
3136                 break;
3137         case IEEE80211_IOC_BURST:
3138                 if (ireq->i_val) {
3139                         if ((vap->iv_caps & IEEE80211_C_BURST) == 0)
3140                                 return EOPNOTSUPP;
3141                         ieee80211_syncflag(vap, IEEE80211_F_BURST);
3142                 } else
3143                         ieee80211_syncflag(vap, -IEEE80211_F_BURST);
3144                 error = ERESTART;
3145                 break;
3146         case IEEE80211_IOC_BMISSTHRESHOLD:
3147                 if (!(IEEE80211_HWBMISS_MIN <= ireq->i_val &&
3148                       ireq->i_val <= IEEE80211_HWBMISS_MAX))
3149                         return EINVAL;
3150                 vap->iv_bmissthreshold = ireq->i_val;
3151                 error = ERESTART;
3152                 break;
3153         case IEEE80211_IOC_CURCHAN:
3154                 error = ieee80211_ioctl_setcurchan(vap, ireq);
3155                 break;
3156         case IEEE80211_IOC_SHORTGI:
3157                 if (ireq->i_val) {
3158 #define IEEE80211_HTCAP_SHORTGI \
3159         (IEEE80211_HTCAP_SHORTGI20 | IEEE80211_HTCAP_SHORTGI40)
3160                         if (((ireq->i_val ^ vap->iv_htcaps) & IEEE80211_HTCAP_SHORTGI) != 0)
3161                                 return EINVAL;
3162                         if (ireq->i_val & IEEE80211_HTCAP_SHORTGI20)
3163                                 vap->iv_flags_ht |= IEEE80211_FHT_SHORTGI20;
3164                         if (ireq->i_val & IEEE80211_HTCAP_SHORTGI40)
3165                                 vap->iv_flags_ht |= IEEE80211_FHT_SHORTGI40;
3166 #undef IEEE80211_HTCAP_SHORTGI
3167                 } else
3168                         vap->iv_flags_ht &=
3169                             ~(IEEE80211_FHT_SHORTGI20 | IEEE80211_FHT_SHORTGI40);
3170                 error = ERESTART;
3171                 break;
3172         case IEEE80211_IOC_AMPDU:
3173                 if (ireq->i_val && (vap->iv_htcaps & IEEE80211_HTC_AMPDU) == 0)
3174                         return EINVAL;
3175                 if (ireq->i_val & 1)
3176                         vap->iv_flags_ht |= IEEE80211_FHT_AMPDU_TX;
3177                 else
3178                         vap->iv_flags_ht &= ~IEEE80211_FHT_AMPDU_TX;
3179                 if (ireq->i_val & 2)
3180                         vap->iv_flags_ht |= IEEE80211_FHT_AMPDU_RX;
3181                 else
3182                         vap->iv_flags_ht &= ~IEEE80211_FHT_AMPDU_RX;
3183                 /* NB: reset only if we're operating on an 11n channel */
3184                 if (isvapht(vap))
3185                         error = ERESTART;
3186                 break;
3187         case IEEE80211_IOC_AMPDU_LIMIT:
3188                 /* XXX TODO: figure out ampdu_limit versus ampdu_rxmax */
3189                 if (!(IEEE80211_HTCAP_MAXRXAMPDU_8K <= ireq->i_val &&
3190                       ireq->i_val <= IEEE80211_HTCAP_MAXRXAMPDU_64K))
3191                         return EINVAL;
3192                 if (vap->iv_opmode == IEEE80211_M_HOSTAP)
3193                         vap->iv_ampdu_rxmax = ireq->i_val;
3194                 else
3195                         vap->iv_ampdu_limit = ireq->i_val;
3196                 error = ERESTART;
3197                 break;
3198         case IEEE80211_IOC_AMPDU_DENSITY:
3199                 if (!(IEEE80211_HTCAP_MPDUDENSITY_NA <= ireq->i_val &&
3200                       ireq->i_val <= IEEE80211_HTCAP_MPDUDENSITY_16))
3201                         return EINVAL;
3202                 vap->iv_ampdu_density = ireq->i_val;
3203                 error = ERESTART;
3204                 break;
3205         case IEEE80211_IOC_AMSDU:
3206                 if (ireq->i_val && (vap->iv_htcaps & IEEE80211_HTC_AMSDU) == 0)
3207                         return EINVAL;
3208                 if (ireq->i_val & 1)
3209                         vap->iv_flags_ht |= IEEE80211_FHT_AMSDU_TX;
3210                 else
3211                         vap->iv_flags_ht &= ~IEEE80211_FHT_AMSDU_TX;
3212                 if (ireq->i_val & 2)
3213                         vap->iv_flags_ht |= IEEE80211_FHT_AMSDU_RX;
3214                 else
3215                         vap->iv_flags_ht &= ~IEEE80211_FHT_AMSDU_RX;
3216                 /* NB: reset only if we're operating on an 11n channel */
3217                 if (isvapht(vap))
3218                         error = ERESTART;
3219                 break;
3220         case IEEE80211_IOC_AMSDU_LIMIT:
3221                 /* XXX validate */
3222                 vap->iv_amsdu_limit = ireq->i_val;      /* XXX truncation? */
3223                 break;
3224         case IEEE80211_IOC_PUREN:
3225                 if (ireq->i_val) {
3226                         if ((vap->iv_flags_ht & IEEE80211_FHT_HT) == 0)
3227                                 return EINVAL;
3228                         vap->iv_flags_ht |= IEEE80211_FHT_PUREN;
3229                 } else
3230                         vap->iv_flags_ht &= ~IEEE80211_FHT_PUREN;
3231                 /* NB: reset only if we're operating on an 11n channel */
3232                 if (isvapht(vap))
3233                         error = ERESTART;
3234                 break;
3235         case IEEE80211_IOC_DOTH:
3236                 if (ireq->i_val) {
3237 #if 0
3238                         /* XXX no capability */
3239                         if ((vap->iv_caps & IEEE80211_C_DOTH) == 0)
3240                                 return EOPNOTSUPP;
3241 #endif
3242                         vap->iv_flags |= IEEE80211_F_DOTH;
3243                 } else
3244                         vap->iv_flags &= ~IEEE80211_F_DOTH;
3245                 error = ENETRESET;
3246                 break;
3247         case IEEE80211_IOC_REGDOMAIN:
3248                 error = ieee80211_ioctl_setregdomain(vap, ireq);
3249                 break;
3250         case IEEE80211_IOC_ROAM:
3251                 error = ieee80211_ioctl_setroam(vap, ireq);
3252                 break;
3253         case IEEE80211_IOC_TXPARAMS:
3254                 error = ieee80211_ioctl_settxparams(vap, ireq);
3255                 break;
3256         case IEEE80211_IOC_HTCOMPAT:
3257                 if (ireq->i_val) {
3258                         if ((vap->iv_flags_ht & IEEE80211_FHT_HT) == 0)
3259                                 return EOPNOTSUPP;
3260                         vap->iv_flags_ht |= IEEE80211_FHT_HTCOMPAT;
3261                 } else
3262                         vap->iv_flags_ht &= ~IEEE80211_FHT_HTCOMPAT;
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_DWDS:
3268                 if (ireq->i_val) {
3269                         /* NB: DWDS only makes sense for WDS-capable devices */
3270                         if ((ic->ic_caps & IEEE80211_C_WDS) == 0)
3271                                 return EOPNOTSUPP;
3272                         /* NB: DWDS is used only with ap+sta vaps */
3273                         if (vap->iv_opmode != IEEE80211_M_HOSTAP &&
3274                             vap->iv_opmode != IEEE80211_M_STA)
3275                                 return EINVAL;
3276                         vap->iv_flags |= IEEE80211_F_DWDS;
3277                         if (vap->iv_opmode == IEEE80211_M_STA)
3278                                 vap->iv_flags_ext |= IEEE80211_FEXT_4ADDR;
3279                 } else {
3280                         vap->iv_flags &= ~IEEE80211_F_DWDS;
3281                         if (vap->iv_opmode == IEEE80211_M_STA)
3282                                 vap->iv_flags_ext &= ~IEEE80211_FEXT_4ADDR;
3283                 }
3284                 break;
3285         case IEEE80211_IOC_INACTIVITY:
3286                 if (ireq->i_val)
3287                         vap->iv_flags_ext |= IEEE80211_FEXT_INACT;
3288                 else
3289                         vap->iv_flags_ext &= ~IEEE80211_FEXT_INACT;
3290                 break;
3291         case IEEE80211_IOC_APPIE:
3292                 error = ieee80211_ioctl_setappie(vap, ireq);
3293                 break;
3294         case IEEE80211_IOC_WPS:
3295                 if (ireq->i_val) {
3296                         if ((vap->iv_caps & IEEE80211_C_WPA) == 0)
3297                                 return EOPNOTSUPP;
3298                         vap->iv_flags_ext |= IEEE80211_FEXT_WPS;
3299                 } else
3300                         vap->iv_flags_ext &= ~IEEE80211_FEXT_WPS;
3301                 break;
3302         case IEEE80211_IOC_TSN:
3303                 if (ireq->i_val) {
3304                         if ((vap->iv_caps & IEEE80211_C_WPA) == 0)
3305                                 return EOPNOTSUPP;
3306                         vap->iv_flags_ext |= IEEE80211_FEXT_TSN;
3307                 } else
3308                         vap->iv_flags_ext &= ~IEEE80211_FEXT_TSN;
3309                 break;
3310         case IEEE80211_IOC_CHANSWITCH:
3311                 error = ieee80211_ioctl_chanswitch(vap, ireq);
3312                 break;
3313         case IEEE80211_IOC_DFS:
3314                 if (ireq->i_val) {
3315                         if ((vap->iv_caps & IEEE80211_C_DFS) == 0)
3316                                 return EOPNOTSUPP;
3317                         /* NB: DFS requires 11h support */
3318                         if ((vap->iv_flags & IEEE80211_F_DOTH) == 0)
3319                                 return EINVAL;
3320                         vap->iv_flags_ext |= IEEE80211_FEXT_DFS;
3321                 } else
3322                         vap->iv_flags_ext &= ~IEEE80211_FEXT_DFS;
3323                 break;
3324         case IEEE80211_IOC_DOTD:
3325                 if (ireq->i_val)
3326                         vap->iv_flags_ext |= IEEE80211_FEXT_DOTD;
3327                 else
3328                         vap->iv_flags_ext &= ~IEEE80211_FEXT_DOTD;
3329                 if (vap->iv_opmode == IEEE80211_M_STA)
3330                         error = ENETRESET;
3331                 break;
3332         case IEEE80211_IOC_HTPROTMODE:
3333                 if (ireq->i_val > IEEE80211_PROT_RTSCTS)
3334                         return EINVAL;
3335                 ic->ic_htprotmode = ireq->i_val ?
3336                     IEEE80211_PROT_RTSCTS : IEEE80211_PROT_NONE;
3337                 /* NB: if not operating in 11n this can wait */
3338                 if (isvapht(vap))
3339                         error = ERESTART;
3340                 break;
3341         case IEEE80211_IOC_STA_VLAN:
3342                 error = ieee80211_ioctl_setstavlan(vap, ireq);
3343                 break;
3344         case IEEE80211_IOC_SMPS:
3345                 if ((ireq->i_val &~ IEEE80211_HTCAP_SMPS) != 0 ||
3346                     ireq->i_val == 0x0008)      /* value of 2 is reserved */
3347                         return EINVAL;
3348                 if (ireq->i_val != IEEE80211_HTCAP_SMPS_OFF &&
3349                     (vap->iv_htcaps & IEEE80211_HTC_SMPS) == 0)
3350                         return EOPNOTSUPP;
3351                 vap->iv_htcaps = (vap->iv_htcaps &~ IEEE80211_HTCAP_SMPS) |
3352                         ireq->i_val;
3353                 /* NB: if not operating in 11n this can wait */
3354                 if (isvapht(vap))
3355                         error = ERESTART;
3356                 break;
3357         case IEEE80211_IOC_RIFS:
3358                 if (ireq->i_val != 0) {
3359                         if ((vap->iv_htcaps & IEEE80211_HTC_RIFS) == 0)
3360                                 return EOPNOTSUPP;
3361                         vap->iv_flags_ht |= IEEE80211_FHT_RIFS;
3362                 } else
3363                         vap->iv_flags_ht &= ~IEEE80211_FHT_RIFS;
3364                 /* NB: if not operating in 11n this can wait */
3365                 if (isvapht(vap))
3366                         error = ERESTART;
3367                 break;
3368         case IEEE80211_IOC_STBC:
3369                 /* Check if we can do STBC TX/RX before changing the setting */
3370                 if ((ireq->i_val & 1) &&
3371                     ((vap->iv_htcaps & IEEE80211_HTCAP_TXSTBC) == 0))
3372                         return EOPNOTSUPP;
3373                 if ((ireq->i_val & 2) &&
3374                     ((vap->iv_htcaps & IEEE80211_HTCAP_RXSTBC) == 0))
3375                         return EOPNOTSUPP;
3376
3377                 /* TX */
3378                 if (ireq->i_val & 1)
3379                         vap->iv_flags_ht |= IEEE80211_FHT_STBC_TX;
3380                 else
3381                         vap->iv_flags_ht &= ~IEEE80211_FHT_STBC_TX;
3382
3383                 /* RX */
3384                 if (ireq->i_val & 2)
3385                         vap->iv_flags_ht |= IEEE80211_FHT_STBC_RX;
3386                 else
3387                         vap->iv_flags_ht &= ~IEEE80211_FHT_STBC_RX;
3388
3389                 /* NB: reset only if we're operating on an 11n channel */
3390                 if (isvapht(vap))
3391                         error = ERESTART;
3392                 break;
3393         case IEEE80211_IOC_LDPC:
3394                 /* Check if we can do LDPC TX/RX before changing the setting */
3395                 if ((ireq->i_val & 1) &&
3396                     (vap->iv_htcaps & IEEE80211_HTC_TXLDPC) == 0)
3397                         return EOPNOTSUPP;
3398                 if ((ireq->i_val & 2) &&
3399                     (vap->iv_htcaps & IEEE80211_HTCAP_LDPC) == 0)
3400                         return EOPNOTSUPP;
3401
3402                 /* TX */
3403                 if (ireq->i_val & 1)
3404                         vap->iv_flags_ht |= IEEE80211_FHT_LDPC_TX;
3405                 else
3406                         vap->iv_flags_ht &= ~IEEE80211_FHT_LDPC_TX;
3407
3408                 /* RX */
3409                 if (ireq->i_val & 2)
3410                         vap->iv_flags_ht |= IEEE80211_FHT_LDPC_RX;
3411                 else
3412                         vap->iv_flags_ht &= ~IEEE80211_FHT_LDPC_RX;
3413
3414                 /* NB: reset only if we're operating on an 11n channel */
3415                 if (isvapht(vap))
3416                         error = ERESTART;
3417                 break;
3418
3419         /* VHT */
3420         case IEEE80211_IOC_VHTCONF:
3421                 if (ireq->i_val & 1)
3422                         ieee80211_syncflag_vht(vap, IEEE80211_FVHT_VHT);
3423                 else
3424                         ieee80211_syncflag_vht(vap, -IEEE80211_FVHT_VHT);
3425
3426                 if (ireq->i_val & 2)
3427                         ieee80211_syncflag_vht(vap, IEEE80211_FVHT_USEVHT40);
3428                 else
3429                         ieee80211_syncflag_vht(vap, -IEEE80211_FVHT_USEVHT40);
3430
3431                 if (ireq->i_val & 4)
3432                         ieee80211_syncflag_vht(vap, IEEE80211_FVHT_USEVHT80);
3433                 else
3434                         ieee80211_syncflag_vht(vap, -IEEE80211_FVHT_USEVHT80);
3435
3436                 if (ireq->i_val & 8)
3437                         ieee80211_syncflag_vht(vap, IEEE80211_FVHT_USEVHT80P80);
3438                 else
3439                         ieee80211_syncflag_vht(vap, -IEEE80211_FVHT_USEVHT80P80);
3440
3441                 if (ireq->i_val & 16)
3442                         ieee80211_syncflag_vht(vap, IEEE80211_FVHT_USEVHT160);
3443                 else
3444                         ieee80211_syncflag_vht(vap, -IEEE80211_FVHT_USEVHT160);
3445
3446                 error = ENETRESET;
3447                 break;
3448
3449         default:
3450                 error = ieee80211_ioctl_setdefault(vap, ireq);
3451                 break;
3452         }
3453         /*
3454          * The convention is that ENETRESET means an operation
3455          * requires a complete re-initialization of the device (e.g.
3456          * changing something that affects the association state).
3457          * ERESTART means the request may be handled with only a
3458          * reload of the hardware state.  We hand ERESTART requests
3459          * to the iv_reset callback so the driver can decide.  If
3460          * a device does not fillin iv_reset then it defaults to one
3461          * that returns ENETRESET.  Otherwise a driver may return
3462          * ENETRESET (in which case a full reset will be done) or
3463          * 0 to mean there's no need to do anything (e.g. when the
3464          * change has no effect on the driver/device).
3465          */
3466         if (error == ERESTART)
3467                 error = IFNET_IS_UP_RUNNING(vap->iv_ifp) ?
3468                     vap->iv_reset(vap, ireq->i_type) : 0;
3469         if (error == ENETRESET) {
3470                 /* XXX need to re-think AUTO handling */
3471                 if (IS_UP_AUTO(vap))
3472                         ieee80211_init(vap);
3473                 error = 0;
3474         }
3475         return error;
3476 }
3477
3478 int
3479 ieee80211_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
3480 {
3481         struct ieee80211vap *vap = ifp->if_softc;
3482         struct ieee80211com *ic = vap->iv_ic;
3483         int error = 0, wait = 0;
3484         struct ifreq *ifr;
3485         struct ifaddr *ifa;                     /* XXX */
3486
3487         switch (cmd) {
3488         case SIOCSIFFLAGS:
3489                 IEEE80211_LOCK(ic);
3490                 if ((ifp->if_flags ^ vap->iv_ifflags) & IFF_PROMISC) {
3491                         /*
3492                          * Enable promiscuous mode when:
3493                          * 1. Interface is not a member of bridge, or
3494                          * 2. Requested by user, or
3495                          * 3. In monitor (or adhoc-demo) mode.
3496                          */
3497                         if (ifp->if_bridge == NULL ||
3498                             (ifp->if_flags & IFF_PPROMISC) != 0 ||
3499                             vap->iv_opmode == IEEE80211_M_MONITOR ||
3500                             (vap->iv_opmode == IEEE80211_M_AHDEMO &&
3501                             (vap->iv_caps & IEEE80211_C_TDMA) == 0)) {
3502                                 ieee80211_promisc(vap,
3503                                     ifp->if_flags & IFF_PROMISC);
3504                                 vap->iv_ifflags ^= IFF_PROMISC;
3505                         }
3506                 }
3507                 if ((ifp->if_flags ^ vap->iv_ifflags) & IFF_ALLMULTI) {
3508                         ieee80211_allmulti(vap, ifp->if_flags & IFF_ALLMULTI);
3509                         vap->iv_ifflags ^= IFF_ALLMULTI;
3510                 }
3511                 if (ifp->if_flags & IFF_UP) {
3512                         /*
3513                          * Bring ourself up unless we're already operational.
3514                          * If we're the first vap and the parent is not up
3515                          * then it will automatically be brought up as a
3516                          * side-effect of bringing ourself up.
3517                          */
3518                         if (vap->iv_state == IEEE80211_S_INIT) {
3519                                 if (ic->ic_nrunning == 0)
3520                                         wait = 1;
3521                                 ieee80211_start_locked(vap);
3522                         }
3523                 } else if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
3524                         /*
3525                          * Stop ourself.  If we are the last vap to be
3526                          * marked down the parent will also be taken down.
3527                          */
3528                         if (ic->ic_nrunning == 1)
3529                                 wait = 1;
3530                         ieee80211_stop_locked(vap);
3531                 }
3532                 IEEE80211_UNLOCK(ic);
3533                 /* Wait for parent ioctl handler if it was queued */
3534                 if (wait) {
3535                         ieee80211_waitfor_parent(ic);
3536
3537                         /*
3538                          * Check if the MAC address was changed
3539                          * via SIOCSIFLLADDR ioctl.
3540                          */
3541                         if_addr_rlock(ifp);
3542                         if ((ifp->if_flags & IFF_UP) == 0 &&
3543                             !IEEE80211_ADDR_EQ(vap->iv_myaddr, IF_LLADDR(ifp)))
3544                                 IEEE80211_ADDR_COPY(vap->iv_myaddr,
3545                                     IF_LLADDR(ifp));
3546                         if_addr_runlock(ifp);
3547                 }
3548                 break;
3549         case SIOCADDMULTI:
3550         case SIOCDELMULTI:
3551                 ieee80211_runtask(ic, &ic->ic_mcast_task);
3552                 break;
3553         case SIOCSIFMEDIA:
3554         case SIOCGIFMEDIA:
3555                 ifr = (struct ifreq *)data;
3556                 error = ifmedia_ioctl(ifp, ifr, &vap->iv_media, cmd);
3557                 break;
3558         case SIOCG80211:
3559                 error = ieee80211_ioctl_get80211(vap, cmd,
3560                                 (struct ieee80211req *) data);
3561                 break;
3562         case SIOCS80211:
3563                 error = priv_check(curthread, PRIV_NET80211_MANAGE);
3564                 if (error == 0)
3565                         error = ieee80211_ioctl_set80211(vap, cmd,
3566                                         (struct ieee80211req *) data);
3567                 break;
3568         case SIOCG80211STATS:
3569                 ifr = (struct ifreq *)data;
3570                 copyout(&vap->iv_stats, ifr_data_get_ptr(ifr),
3571                     sizeof (vap->iv_stats));
3572                 break;
3573         case SIOCSIFMTU:
3574                 ifr = (struct ifreq *)data;
3575                 if (!(IEEE80211_MTU_MIN <= ifr->ifr_mtu &&
3576                     ifr->ifr_mtu <= IEEE80211_MTU_MAX))
3577                         error = EINVAL;
3578                 else
3579                         ifp->if_mtu = ifr->ifr_mtu;
3580                 break;
3581         case SIOCSIFADDR:
3582                 /*
3583                  * XXX Handle this directly so we can suppress if_init calls.
3584                  * XXX This should be done in ether_ioctl but for the moment
3585                  * XXX there are too many other parts of the system that
3586                  * XXX set IFF_UP and so suppress if_init being called when
3587                  * XXX it should be.
3588                  */
3589                 ifa = (struct ifaddr *) data;
3590                 switch (ifa->ifa_addr->sa_family) {
3591 #ifdef INET
3592                 case AF_INET:
3593                         if ((ifp->if_flags & IFF_UP) == 0) {
3594                                 ifp->if_flags |= IFF_UP;
3595                                 ifp->if_init(ifp->if_softc);
3596                         }
3597                         arp_ifinit(ifp, ifa);
3598                         break;
3599 #endif
3600                 default:
3601                         if ((ifp->if_flags & IFF_UP) == 0) {
3602                                 ifp->if_flags |= IFF_UP;
3603                                 ifp->if_init(ifp->if_softc);
3604                         }
3605                         break;
3606                 }
3607                 break;
3608         default:
3609                 /*
3610                  * Pass unknown ioctls first to the driver, and if it
3611                  * returns ENOTTY, then to the generic Ethernet handler.
3612                  */
3613                 if (ic->ic_ioctl != NULL &&
3614                     (error = ic->ic_ioctl(ic, cmd, data)) != ENOTTY)
3615                         break;
3616                 error = ether_ioctl(ifp, cmd, data);
3617                 break;
3618         }
3619         return (error);
3620 }