sys/net80211/ieee80211_ioctl.c

   1 /*-
   2  * Copyright (c) 2001 Atsushi Onoe
   3  * Copyright (c) 2002-2009 Sam Leffler, Errno Consulting
   4  * All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions and the following disclaimer.
  11  * 2. Redistributions in binary form must reproduce the above copyright
  12  *    notice, this list of conditions and the following disclaimer in the
  13  *    documentation and/or other materials provided with the distribution.
  14  *
  15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  17  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  18  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  19  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  20  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  21  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  22  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  24  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  25  */
  26
  27 #include <sys/cdefs.h>
  28 __FBSDID("$FreeBSD$");
  29
  30 /*
  31  * IEEE 802.11 ioctl support (FreeBSD-specific)
  32  */
  33
  34 #include "opt_inet.h"
  35 #include "opt_wlan.h"
  36
  37 #include <sys/endian.h>
  38 #include <sys/param.h>
  39 #include <sys/kernel.h>
  40 #include <sys/malloc.h>
  41 #include <sys/priv.h>
  42 #include <sys/socket.h>
  43 #include <sys/sockio.h>
  44 #include <sys/systm.h>
  45
  46 #include <net/if.h>
  47 #include <net/if_var.h>
  48 #include <net/if_dl.h>
  49 #include <net/if_media.h>
  50 #include <net/ethernet.h>
  51
  52 #ifdef INET
  53 #include <netinet/in.h>
  54 #include <netinet/if_ether.h>
  55 #endif
  56
  57 #include <net80211/ieee80211_var.h>
  58 #include <net80211/ieee80211_ioctl.h>
  59 #include <net80211/ieee80211_regdomain.h>
  60 #include <net80211/ieee80211_input.h>
  61
  62 #define IS_UP_AUTO(_vap) \
  63         (IFNET_IS_UP_RUNNING((_vap)->iv_ifp) && \
  64          (_vap)->iv_roaming == IEEE80211_ROAMING_AUTO)
  65
  66 static const uint8_t zerobssid[IEEE80211_ADDR_LEN];
  67 static struct ieee80211_channel *findchannel(struct ieee80211com *,
  68                 int ieee, int mode);
  69 static int ieee80211_scanreq(struct ieee80211vap *,
  70                 struct ieee80211_scan_req *);
  71
  72 static int
  73 ieee80211_ioctl_getkey(struct ieee80211vap *vap, struct ieee80211req *ireq)
  74 {
  75         struct ieee80211com *ic = vap->iv_ic;
  76         struct ieee80211_node *ni;
  77         struct ieee80211req_key ik;
  78         struct ieee80211_key *wk;
  79         const struct ieee80211_cipher *cip;
  80         u_int kid;
  81         int error;
  82
  83         if (ireq->i_len != sizeof(ik))
  84                 return EINVAL;
  85         error = copyin(ireq->i_data, &ik, sizeof(ik));
  86         if (error)
  87                 return error;
  88         kid = ik.ik_keyix;
  89         if (kid == IEEE80211_KEYIX_NONE) {
  90                 ni = ieee80211_find_vap_node(&ic->ic_sta, vap, ik.ik_macaddr);
  91                 if (ni == NULL)
  92                         return ENOENT;
  93                 wk = &ni->ni_ucastkey;
  94         } else {
  95                 if (kid >= IEEE80211_WEP_NKID)
  96                         return EINVAL;
  97                 wk = &vap->iv_nw_keys[kid];
  98                 IEEE80211_ADDR_COPY(&ik.ik_macaddr, vap->iv_bss->ni_macaddr);
  99                 ni = NULL;
 100         }
 101         cip = wk->wk_cipher;
 102         ik.ik_type = cip->ic_cipher;
 103         ik.ik_keylen = wk->wk_keylen;
 104         ik.ik_flags = wk->wk_flags & (IEEE80211_KEY_XMIT | IEEE80211_KEY_RECV);
 105         if (wk->wk_keyix == vap->iv_def_txkey)
 106                 ik.ik_flags |= IEEE80211_KEY_DEFAULT;
 107         if (priv_check(curthread, PRIV_NET80211_GETKEY) == 0) {
 108                 /* NB: only root can read key data */
 109                 ik.ik_keyrsc = wk->wk_keyrsc[IEEE80211_NONQOS_TID];
 110                 ik.ik_keytsc = wk->wk_keytsc;
 111                 memcpy(ik.ik_keydata, wk->wk_key, wk->wk_keylen);
 112                 if (cip->ic_cipher == IEEE80211_CIPHER_TKIP) {
 113                         memcpy(ik.ik_keydata+wk->wk_keylen,
 114                                 wk->wk_key + IEEE80211_KEYBUF_SIZE,
 115                                 IEEE80211_MICBUF_SIZE);
 116                         ik.ik_keylen += IEEE80211_MICBUF_SIZE;
 117                 }
 118         } else {
 119                 ik.ik_keyrsc = 0;
 120                 ik.ik_keytsc = 0;
 121                 memset(ik.ik_keydata, 0, sizeof(ik.ik_keydata));
 122         }
 123         if (ni != NULL)
 124                 ieee80211_free_node(ni);
 125         return copyout(&ik, ireq->i_data, sizeof(ik));
 126 }
 127
 128 static int
 129 ieee80211_ioctl_getchanlist(struct ieee80211vap *vap, struct ieee80211req *ireq)
 130 {
 131         struct ieee80211com *ic = vap->iv_ic;
 132
 133         if (sizeof(ic->ic_chan_active) < ireq->i_len)
 134                 ireq->i_len = sizeof(ic->ic_chan_active);
 135         return copyout(&ic->ic_chan_active, ireq->i_data, ireq->i_len);
 136 }
 137
 138 static int
 139 ieee80211_ioctl_getchaninfo(struct ieee80211vap *vap, struct ieee80211req *ireq)
 140 {
 141         struct ieee80211com *ic = vap->iv_ic;
 142         uint32_t space;
 143
 144         space = __offsetof(struct ieee80211req_chaninfo,
 145                         ic_chans[ic->ic_nchans]);
 146         if (space > ireq->i_len)
 147                 space = ireq->i_len;
 148         /* XXX assumes compatible layout */
 149         return copyout(&ic->ic_nchans, ireq->i_data, space);
 150 }
 151
 152 static int
 153 ieee80211_ioctl_getwpaie(struct ieee80211vap *vap,
 154         struct ieee80211req *ireq, int req)
 155 {
 156         struct ieee80211_node *ni;
 157         struct ieee80211req_wpaie2 *wpaie;
 158         int error;
 159
 160         if (ireq->i_len < IEEE80211_ADDR_LEN)
 161                 return EINVAL;
 162         wpaie = IEEE80211_MALLOC(sizeof(*wpaie), M_TEMP,
 163             IEEE80211_M_NOWAIT | IEEE80211_M_ZERO);
 164         if (wpaie == NULL)
 165                 return ENOMEM;
 166         error = copyin(ireq->i_data, wpaie->wpa_macaddr, IEEE80211_ADDR_LEN);
 167         if (error != 0)
 168                 goto bad;
 169         ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap, wpaie->wpa_macaddr);
 170         if (ni == NULL) {
 171                 error = ENOENT;
 172                 goto bad;
 173         }
 174         if (ni->ni_ies.wpa_ie != NULL) {
 175                 int ielen = ni->ni_ies.wpa_ie[1] + 2;
 176                 if (ielen > sizeof(wpaie->wpa_ie))
 177                         ielen = sizeof(wpaie->wpa_ie);
 178                 memcpy(wpaie->wpa_ie, ni->ni_ies.wpa_ie, ielen);
 179         }
 180         if (req == IEEE80211_IOC_WPAIE2) {
 181                 if (ni->ni_ies.rsn_ie != NULL) {
 182                         int ielen = ni->ni_ies.rsn_ie[1] + 2;
 183                         if (ielen > sizeof(wpaie->rsn_ie))
 184                                 ielen = sizeof(wpaie->rsn_ie);
 185                         memcpy(wpaie->rsn_ie, ni->ni_ies.rsn_ie, ielen);
 186                 }
 187                 if (ireq->i_len > sizeof(struct ieee80211req_wpaie2))
 188                         ireq->i_len = sizeof(struct ieee80211req_wpaie2);
 189         } else {
 190                 /* compatibility op, may overwrite wpa ie */
 191                 /* XXX check ic_flags? */
 192                 if (ni->ni_ies.rsn_ie != NULL) {
 193                         int ielen = ni->ni_ies.rsn_ie[1] + 2;
 194                         if (ielen > sizeof(wpaie->wpa_ie))
 195                                 ielen = sizeof(wpaie->wpa_ie);
 196                         memcpy(wpaie->wpa_ie, ni->ni_ies.rsn_ie, ielen);
 197                 }
 198                 if (ireq->i_len > sizeof(struct ieee80211req_wpaie))
 199                         ireq->i_len = sizeof(struct ieee80211req_wpaie);
 200         }
 201         ieee80211_free_node(ni);
 202         error = copyout(wpaie, ireq->i_data, ireq->i_len);
 203 bad:
 204         IEEE80211_FREE(wpaie, M_TEMP);
 205         return error;
 206 }
 207
 208 static int
 209 ieee80211_ioctl_getstastats(struct ieee80211vap *vap, struct ieee80211req *ireq)
 210 {
 211         struct ieee80211_node *ni;
 212         uint8_t macaddr[IEEE80211_ADDR_LEN];
 213         const size_t off = __offsetof(struct ieee80211req_sta_stats, is_stats);
 214         int error;
 215
 216         if (ireq->i_len < off)
 217                 return EINVAL;
 218         error = copyin(ireq->i_data, macaddr, IEEE80211_ADDR_LEN);
 219         if (error != 0)
 220                 return error;
 221         ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap, macaddr);
 222         if (ni == NULL)
 223                 return ENOENT;
 224         if (ireq->i_len > sizeof(struct ieee80211req_sta_stats))
 225                 ireq->i_len = sizeof(struct ieee80211req_sta_stats);
 226         /* NB: copy out only the statistics */
 227         error = copyout(&ni->ni_stats, (uint8_t *) ireq->i_data + off,
 228                         ireq->i_len - off);
 229         ieee80211_free_node(ni);
 230         return error;
 231 }
 232
 233 struct scanreq {
 234         struct ieee80211req_scan_result *sr;
 235         size_t space;
 236 };
 237
 238 static size_t
 239 scan_space(const struct ieee80211_scan_entry *se, int *ielen)
 240 {
 241         size_t len;
 242
 243         *ielen = se->se_ies.len;
 244         /*
 245          * NB: ie's can be no more than 255 bytes and the max 802.11
 246          * packet is <3Kbytes so we are sure this doesn't overflow
 247          * 16-bits; if this is a concern we can drop the ie's.
 248          */
 249         len = sizeof(struct ieee80211req_scan_result) + se->se_ssid[1] +
 250             se->se_meshid[1] + *ielen;
 251         return roundup(len, sizeof(uint32_t));
 252 }
 253
 254 static void
 255 get_scan_space(void *arg, const struct ieee80211_scan_entry *se)
 256 {
 257         struct scanreq *req = arg;
 258         int ielen;
 259
 260         req->space += scan_space(se, &ielen);
 261 }
 262
 263 static void
 264 get_scan_result(void *arg, const struct ieee80211_scan_entry *se)
 265 {
 266         struct scanreq *req = arg;
 267         struct ieee80211req_scan_result *sr;
 268         int ielen, len, nr, nxr;
 269         uint8_t *cp;
 270
 271         len = scan_space(se, &ielen);
 272         if (len > req->space)
 273                 return;
 274
 275         sr = req->sr;
 276         KASSERT(len <= 65535 && ielen <= 65535,
 277             ("len %u ssid %u ie %u", len, se->se_ssid[1], ielen));
 278         sr->isr_len = len;
 279         sr->isr_ie_off = sizeof(struct ieee80211req_scan_result);
 280         sr->isr_ie_len = ielen;
 281         sr->isr_freq = se->se_chan->ic_freq;
 282         sr->isr_flags = se->se_chan->ic_flags;
 283         sr->isr_rssi = se->se_rssi;
 284         sr->isr_noise = se->se_noise;
 285         sr->isr_intval = se->se_intval;
 286         sr->isr_capinfo = se->se_capinfo;
 287         sr->isr_erp = se->se_erp;
 288         IEEE80211_ADDR_COPY(sr->isr_bssid, se->se_bssid);
 289         nr = min(se->se_rates[1], IEEE80211_RATE_MAXSIZE);
 290         memcpy(sr->isr_rates, se->se_rates+2, nr);
 291         nxr = min(se->se_xrates[1], IEEE80211_RATE_MAXSIZE - nr);
 292         memcpy(sr->isr_rates+nr, se->se_xrates+2, nxr);
 293         sr->isr_nrates = nr + nxr;
 294
 295         /* copy SSID */
 296         sr->isr_ssid_len = se->se_ssid[1];
 297         cp = ((uint8_t *)sr) + sr->isr_ie_off;
 298         memcpy(cp, se->se_ssid+2, sr->isr_ssid_len);
 299
 300         /* copy mesh id */
 301         cp += sr->isr_ssid_len;
 302         sr->isr_meshid_len = se->se_meshid[1];
 303         memcpy(cp, se->se_meshid+2, sr->isr_meshid_len);
 304         cp += sr->isr_meshid_len;
 305
 306         if (ielen)
 307                 memcpy(cp, se->se_ies.data, ielen);
 308
 309         req->space -= len;
 310         req->sr = (struct ieee80211req_scan_result *)(((uint8_t *)sr) + len);
 311 }
 312
 313 static int
 314 ieee80211_ioctl_getscanresults(struct ieee80211vap *vap,
 315         struct ieee80211req *ireq)
 316 {
 317         struct scanreq req;
 318         int error;
 319
 320         if (ireq->i_len < sizeof(struct scanreq))
 321                 return EFAULT;
 322
 323         error = 0;
 324         req.space = 0;
 325         ieee80211_scan_iterate(vap, get_scan_space, &req);
 326         if (req.space > ireq->i_len)
 327                 req.space = ireq->i_len;
 328         if (req.space > 0) {
 329                 uint32_t space;
 330                 void *p;
 331
 332                 space = req.space;
 333                 /* XXX M_WAITOK after driver lock released */
 334                 p = IEEE80211_MALLOC(space, M_TEMP,
 335                     IEEE80211_M_NOWAIT | IEEE80211_M_ZERO);
 336                 if (p == NULL)
 337                         return ENOMEM;
 338                 req.sr = p;
 339                 ieee80211_scan_iterate(vap, get_scan_result, &req);
 340                 ireq->i_len = space - req.space;
 341                 error = copyout(p, ireq->i_data, ireq->i_len);
 342                 IEEE80211_FREE(p, M_TEMP);
 343         } else
 344                 ireq->i_len = 0;
 345
 346         return error;
 347 }
 348
 349 struct stainforeq {
 350         struct ieee80211req_sta_info *si;
 351         size_t  space;
 352 };
 353
 354 static size_t
 355 sta_space(const struct ieee80211_node *ni, size_t *ielen)
 356 {
 357         *ielen = ni->ni_ies.len;
 358         return roundup(sizeof(struct ieee80211req_sta_info) + *ielen,
 359                       sizeof(uint32_t));
 360 }
 361
 362 static void
 363 get_sta_space(void *arg, struct ieee80211_node *ni)
 364 {
 365         struct stainforeq *req = arg;
 366         size_t ielen;
 367
 368         if (ni->ni_vap->iv_opmode == IEEE80211_M_HOSTAP &&
 369             ni->ni_associd == 0)        /* only associated stations */
 370                 return;
 371         req->space += sta_space(ni, &ielen);
 372 }
 373
 374 static void
 375 get_sta_info(void *arg, struct ieee80211_node *ni)
 376 {
 377         struct stainforeq *req = arg;
 378         struct ieee80211vap *vap = ni->ni_vap;
 379         struct ieee80211req_sta_info *si;
 380         size_t ielen, len;
 381         uint8_t *cp;
 382
 383         if (vap->iv_opmode == IEEE80211_M_HOSTAP &&
 384             ni->ni_associd == 0)        /* only associated stations */
 385                 return;
 386         if (ni->ni_chan == IEEE80211_CHAN_ANYC) /* XXX bogus entry */
 387                 return;
 388         len = sta_space(ni, &ielen);
 389         if (len > req->space)
 390                 return;
 391         si = req->si;
 392         si->isi_len = len;
 393         si->isi_ie_off = sizeof(struct ieee80211req_sta_info);
 394         si->isi_ie_len = ielen;
 395         si->isi_freq = ni->ni_chan->ic_freq;
 396         si->isi_flags = ni->ni_chan->ic_flags;
 397         si->isi_state = ni->ni_flags;
 398         si->isi_authmode = ni->ni_authmode;
 399         vap->iv_ic->ic_node_getsignal(ni, &si->isi_rssi, &si->isi_noise);
 400         vap->iv_ic->ic_node_getmimoinfo(ni, &si->isi_mimo);
 401         si->isi_capinfo = ni->ni_capinfo;
 402         si->isi_erp = ni->ni_erp;
 403         IEEE80211_ADDR_COPY(si->isi_macaddr, ni->ni_macaddr);
 404         si->isi_nrates = ni->ni_rates.rs_nrates;
 405         if (si->isi_nrates > 15)
 406                 si->isi_nrates = 15;
 407         memcpy(si->isi_rates, ni->ni_rates.rs_rates, si->isi_nrates);
 408         si->isi_txrate = ni->ni_txrate;
 409         if (si->isi_txrate & IEEE80211_RATE_MCS) {
 410                 const struct ieee80211_mcs_rates *mcs =
 411                     &ieee80211_htrates[ni->ni_txrate &~ IEEE80211_RATE_MCS];
 412                 if (IEEE80211_IS_CHAN_HT40(ni->ni_chan)) {
 413                         if (ni->ni_flags & IEEE80211_NODE_SGI40)
 414                                 si->isi_txmbps = mcs->ht40_rate_800ns;
 415                         else
 416                                 si->isi_txmbps = mcs->ht40_rate_400ns;
 417                 } else {
 418                         if (ni->ni_flags & IEEE80211_NODE_SGI20)
 419                                 si->isi_txmbps = mcs->ht20_rate_800ns;
 420                         else
 421                                 si->isi_txmbps = mcs->ht20_rate_400ns;
 422                 }
 423         } else
 424                 si->isi_txmbps = si->isi_txrate;
 425         si->isi_associd = ni->ni_associd;
 426         si->isi_txpower = ni->ni_txpower;
 427         si->isi_vlan = ni->ni_vlan;
 428         if (ni->ni_flags & IEEE80211_NODE_QOS) {
 429                 memcpy(si->isi_txseqs, ni->ni_txseqs, sizeof(ni->ni_txseqs));
 430                 memcpy(si->isi_rxseqs, ni->ni_rxseqs, sizeof(ni->ni_rxseqs));
 431         } else {
 432                 si->isi_txseqs[0] = ni->ni_txseqs[IEEE80211_NONQOS_TID];
 433                 si->isi_rxseqs[0] = ni->ni_rxseqs[IEEE80211_NONQOS_TID];
 434         }
 435         /* NB: leave all cases in case we relax ni_associd == 0 check */
 436         if (ieee80211_node_is_authorized(ni))
 437                 si->isi_inact = vap->iv_inact_run;
 438         else if (ni->ni_associd != 0 ||
 439             (vap->iv_opmode == IEEE80211_M_WDS &&
 440              (vap->iv_flags_ext & IEEE80211_FEXT_WDSLEGACY)))
 441                 si->isi_inact = vap->iv_inact_auth;
 442         else
 443                 si->isi_inact = vap->iv_inact_init;
 444         si->isi_inact = (si->isi_inact - ni->ni_inact) * IEEE80211_INACT_WAIT;
 445         si->isi_localid = ni->ni_mllid;
 446         si->isi_peerid = ni->ni_mlpid;
 447         si->isi_peerstate = ni->ni_mlstate;
 448
 449         if (ielen) {
 450                 cp = ((uint8_t *)si) + si->isi_ie_off;
 451                 memcpy(cp, ni->ni_ies.data, ielen);
 452         }
 453
 454         req->si = (struct ieee80211req_sta_info *)(((uint8_t *)si) + len);
 455         req->space -= len;
 456 }
 457
 458 static int
 459 getstainfo_common(struct ieee80211vap *vap, struct ieee80211req *ireq,
 460         struct ieee80211_node *ni, size_t off)
 461 {
 462         struct ieee80211com *ic = vap->iv_ic;
 463         struct stainforeq req;
 464         size_t space;
 465         void *p;
 466         int error;
 467
 468         error = 0;
 469         req.space = 0;
 470         if (ni == NULL) {
 471                 ieee80211_iterate_nodes_vap(&ic->ic_sta, vap, get_sta_space,
 472                     &req);
 473         } else
 474                 get_sta_space(&req, ni);
 475         if (req.space > ireq->i_len)
 476                 req.space = ireq->i_len;
 477         if (req.space > 0) {
 478                 space = req.space;
 479                 /* XXX M_WAITOK after driver lock released */
 480                 p = IEEE80211_MALLOC(space, M_TEMP,
 481                     IEEE80211_M_NOWAIT | IEEE80211_M_ZERO);
 482                 if (p == NULL) {
 483                         error = ENOMEM;
 484                         goto bad;
 485                 }
 486                 req.si = p;
 487                 if (ni == NULL) {
 488                         ieee80211_iterate_nodes_vap(&ic->ic_sta, vap,
 489                             get_sta_info, &req);
 490                 } else
 491                         get_sta_info(&req, ni);
 492                 ireq->i_len = space - req.space;
 493                 error = copyout(p, (uint8_t *) ireq->i_data+off, ireq->i_len);
 494                 IEEE80211_FREE(p, M_TEMP);
 495         } else
 496                 ireq->i_len = 0;
 497 bad:
 498         if (ni != NULL)
 499                 ieee80211_free_node(ni);
 500         return error;
 501 }
 502
 503 static int
 504 ieee80211_ioctl_getstainfo(struct ieee80211vap *vap, struct ieee80211req *ireq)
 505 {
 506         uint8_t macaddr[IEEE80211_ADDR_LEN];
 507         const size_t off = __offsetof(struct ieee80211req_sta_req, info);
 508         struct ieee80211_node *ni;
 509         int error;
 510
 511         if (ireq->i_len < sizeof(struct ieee80211req_sta_req))
 512                 return EFAULT;
 513         error = copyin(ireq->i_data, macaddr, IEEE80211_ADDR_LEN);
 514         if (error != 0)
 515                 return error;
 516         if (IEEE80211_ADDR_EQ(macaddr, vap->iv_ifp->if_broadcastaddr)) {
 517                 ni = NULL;
 518         } else {
 519                 ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap, macaddr);
 520                 if (ni == NULL)
 521                         return ENOENT;
 522         }
 523         return getstainfo_common(vap, ireq, ni, off);
 524 }
 525
 526 static int
 527 ieee80211_ioctl_getstatxpow(struct ieee80211vap *vap, struct ieee80211req *ireq)
 528 {
 529         struct ieee80211_node *ni;
 530         struct ieee80211req_sta_txpow txpow;
 531         int error;
 532
 533         if (ireq->i_len != sizeof(txpow))
 534                 return EINVAL;
 535         error = copyin(ireq->i_data, &txpow, sizeof(txpow));
 536         if (error != 0)
 537                 return error;
 538         ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap, txpow.it_macaddr);
 539         if (ni == NULL)
 540                 return ENOENT;
 541         txpow.it_txpow = ni->ni_txpower;
 542         error = copyout(&txpow, ireq->i_data, sizeof(txpow));
 543         ieee80211_free_node(ni);
 544         return error;
 545 }
 546
 547 static int
 548 ieee80211_ioctl_getwmeparam(struct ieee80211vap *vap, struct ieee80211req *ireq)
 549 {
 550         struct ieee80211com *ic = vap->iv_ic;
 551         struct ieee80211_wme_state *wme = &ic->ic_wme;
 552         struct wmeParams *wmep;
 553         int ac;
 554
 555         if ((ic->ic_caps & IEEE80211_C_WME) == 0)
 556                 return EINVAL;
 557
 558         ac = (ireq->i_len & IEEE80211_WMEPARAM_VAL);
 559         if (ac >= WME_NUM_AC)
 560                 ac = WME_AC_BE;
 561         if (ireq->i_len & IEEE80211_WMEPARAM_BSS)
 562                 wmep = &wme->wme_wmeBssChanParams.cap_wmeParams[ac];
 563         else
 564                 wmep = &wme->wme_wmeChanParams.cap_wmeParams[ac];
 565         switch (ireq->i_type) {
 566         case IEEE80211_IOC_WME_CWMIN:           /* WME: CWmin */
 567                 ireq->i_val = wmep->wmep_logcwmin;
 568                 break;
 569         case IEEE80211_IOC_WME_CWMAX:           /* WME: CWmax */
 570                 ireq->i_val = wmep->wmep_logcwmax;
 571                 break;
 572         case IEEE80211_IOC_WME_AIFS:            /* WME: AIFS */
 573                 ireq->i_val = wmep->wmep_aifsn;
 574                 break;
 575         case IEEE80211_IOC_WME_TXOPLIMIT:       /* WME: txops limit */
 576                 ireq->i_val = wmep->wmep_txopLimit;
 577                 break;
 578         case IEEE80211_IOC_WME_ACM:             /* WME: ACM (bss only) */
 579                 wmep = &wme->wme_wmeBssChanParams.cap_wmeParams[ac];
 580                 ireq->i_val = wmep->wmep_acm;
 581                 break;
 582         case IEEE80211_IOC_WME_ACKPOLICY:       /* WME: ACK policy (!bss only)*/
 583                 wmep = &wme->wme_wmeChanParams.cap_wmeParams[ac];
 584                 ireq->i_val = !wmep->wmep_noackPolicy;
 585                 break;
 586         }
 587         return 0;
 588 }
 589
 590 static int
 591 ieee80211_ioctl_getmaccmd(struct ieee80211vap *vap, struct ieee80211req *ireq)
 592 {
 593         const struct ieee80211_aclator *acl = vap->iv_acl;
 594
 595         return (acl == NULL ? EINVAL : acl->iac_getioctl(vap, ireq));
 596 }
 597
 598 static int
 599 ieee80211_ioctl_getcurchan(struct ieee80211vap *vap, struct ieee80211req *ireq)
 600 {
 601         struct ieee80211com *ic = vap->iv_ic;
 602         struct ieee80211_channel *c;
 603
 604         if (ireq->i_len != sizeof(struct ieee80211_channel))
 605                 return EINVAL;
 606         /*
 607          * vap's may have different operating channels when HT is
 608          * in use.  When in RUN state report the vap-specific channel.
 609          * Otherwise return curchan.
 610          */
 611         if (vap->iv_state == IEEE80211_S_RUN || vap->iv_state == IEEE80211_S_SLEEP)
 612                 c = vap->iv_bss->ni_chan;
 613         else
 614                 c = ic->ic_curchan;
 615         return copyout(c, ireq->i_data, sizeof(*c));
 616 }
 617
 618 static int
 619 getappie(const struct ieee80211_appie *aie, struct ieee80211req *ireq)
 620 {
 621         if (aie == NULL)
 622                 return EINVAL;
 623         /* NB: truncate, caller can check length */
 624         if (ireq->i_len > aie->ie_len)
 625                 ireq->i_len = aie->ie_len;
 626         return copyout(aie->ie_data, ireq->i_data, ireq->i_len);
 627 }
 628
 629 static int
 630 ieee80211_ioctl_getappie(struct ieee80211vap *vap, struct ieee80211req *ireq)
 631 {
 632         uint8_t fc0;
 633
 634         fc0 = ireq->i_val & 0xff;
 635         if ((fc0 & IEEE80211_FC0_TYPE_MASK) != IEEE80211_FC0_TYPE_MGT)
 636                 return EINVAL;
 637         /* NB: could check iv_opmode and reject but hardly worth the effort */
 638         switch (fc0 & IEEE80211_FC0_SUBTYPE_MASK) {
 639         case IEEE80211_FC0_SUBTYPE_BEACON:
 640                 return getappie(vap->iv_appie_beacon, ireq);
 641         case IEEE80211_FC0_SUBTYPE_PROBE_RESP:
 642                 return getappie(vap->iv_appie_proberesp, ireq);
 643         case IEEE80211_FC0_SUBTYPE_ASSOC_RESP:
 644                 return getappie(vap->iv_appie_assocresp, ireq);
 645         case IEEE80211_FC0_SUBTYPE_PROBE_REQ:
 646                 return getappie(vap->iv_appie_probereq, ireq);
 647         case IEEE80211_FC0_SUBTYPE_ASSOC_REQ:
 648                 return getappie(vap->iv_appie_assocreq, ireq);
 649         case IEEE80211_FC0_SUBTYPE_BEACON|IEEE80211_FC0_SUBTYPE_PROBE_RESP:
 650                 return getappie(vap->iv_appie_wpa, ireq);
 651         }
 652         return EINVAL;
 653 }
 654
 655 static int
 656 ieee80211_ioctl_getregdomain(struct ieee80211vap *vap,
 657         const struct ieee80211req *ireq)
 658 {
 659         struct ieee80211com *ic = vap->iv_ic;
 660
 661         if (ireq->i_len != sizeof(ic->ic_regdomain))
 662                 return EINVAL;
 663         return copyout(&ic->ic_regdomain, ireq->i_data,
 664             sizeof(ic->ic_regdomain));
 665 }
 666
 667 static int
 668 ieee80211_ioctl_getroam(struct ieee80211vap *vap,
 669         const struct ieee80211req *ireq)
 670 {
 671         size_t len = ireq->i_len;
 672         /* NB: accept short requests for backwards compat */
 673         if (len > sizeof(vap->iv_roamparms))
 674                 len = sizeof(vap->iv_roamparms);
 675         return copyout(vap->iv_roamparms, ireq->i_data, len);
 676 }
 677
 678 static int
 679 ieee80211_ioctl_gettxparams(struct ieee80211vap *vap,
 680         const struct ieee80211req *ireq)
 681 {
 682         size_t len = ireq->i_len;
 683         /* NB: accept short requests for backwards compat */
 684         if (len > sizeof(vap->iv_txparms))
 685                 len = sizeof(vap->iv_txparms);
 686         return copyout(vap->iv_txparms, ireq->i_data, len);
 687 }
 688
 689 static int
 690 ieee80211_ioctl_getdevcaps(struct ieee80211com *ic,
 691         const struct ieee80211req *ireq)
 692 {
 693         struct ieee80211_devcaps_req *dc;
 694         struct ieee80211req_chaninfo *ci;
 695         int maxchans, error;
 696
 697         maxchans = 1 + ((ireq->i_len - sizeof(struct ieee80211_devcaps_req)) /
 698             sizeof(struct ieee80211_channel));
 699         /* NB: require 1 so we know ic_nchans is accessible */
 700         if (maxchans < 1)
 701                 return EINVAL;
 702         /* constrain max request size, 2K channels is ~24Kbytes */
 703         if (maxchans > 2048)
 704                 maxchans = 2048;
 705         dc = (struct ieee80211_devcaps_req *)
 706             IEEE80211_MALLOC(IEEE80211_DEVCAPS_SIZE(maxchans), M_TEMP,
 707             IEEE80211_M_NOWAIT | IEEE80211_M_ZERO);
 708         if (dc == NULL)
 709                 return ENOMEM;
 710         dc->dc_drivercaps = ic->ic_caps;
 711         dc->dc_cryptocaps = ic->ic_cryptocaps;
 712         dc->dc_htcaps = ic->ic_htcaps;
 713         dc->dc_vhtcaps = ic->ic_vhtcaps;
 714         ci = &dc->dc_chaninfo;
 715         ic->ic_getradiocaps(ic, maxchans, &ci->ic_nchans, ci->ic_chans);
 716         KASSERT(ci->ic_nchans <= maxchans,
 717             ("nchans %d maxchans %d", ci->ic_nchans, maxchans));
 718         ieee80211_sort_channels(ci->ic_chans, ci->ic_nchans);
 719         error = copyout(dc, ireq->i_data, IEEE80211_DEVCAPS_SPACE(dc));
 720         IEEE80211_FREE(dc, M_TEMP);
 721         return error;
 722 }
 723
 724 static int
 725 ieee80211_ioctl_getstavlan(struct ieee80211vap *vap, struct ieee80211req *ireq)
 726 {
 727         struct ieee80211_node *ni;
 728         struct ieee80211req_sta_vlan vlan;
 729         int error;
 730
 731         if (ireq->i_len != sizeof(vlan))
 732                 return EINVAL;
 733         error = copyin(ireq->i_data, &vlan, sizeof(vlan));
 734         if (error != 0)
 735                 return error;
 736         if (!IEEE80211_ADDR_EQ(vlan.sv_macaddr, zerobssid)) {
 737                 ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap,
 738                     vlan.sv_macaddr);
 739                 if (ni == NULL)
 740                         return ENOENT;
 741         } else
 742                 ni = ieee80211_ref_node(vap->iv_bss);
 743         vlan.sv_vlan = ni->ni_vlan;
 744         error = copyout(&vlan, ireq->i_data, sizeof(vlan));
 745         ieee80211_free_node(ni);
 746         return error;
 747 }
 748
 749 /*
 750  * Dummy ioctl get handler so the linker set is defined.
 751  */
 752 static int
 753 dummy_ioctl_get(struct ieee80211vap *vap, struct ieee80211req *ireq)
 754 {
 755         return ENOSYS;
 756 }
 757 IEEE80211_IOCTL_GET(dummy, dummy_ioctl_get);
 758
 759 static int
 760 ieee80211_ioctl_getdefault(struct ieee80211vap *vap, struct ieee80211req *ireq)
 761 {
 762         ieee80211_ioctl_getfunc * const *get;
 763         int error;
 764
 765         SET_FOREACH(get, ieee80211_ioctl_getset) {
 766                 error = (*get)(vap, ireq);
 767                 if (error != ENOSYS)
 768                         return error;
 769         }
 770         return EINVAL;
 771 }
 772
 773 static int
 774 ieee80211_ioctl_get80211(struct ieee80211vap *vap, u_long cmd,
 775     struct ieee80211req *ireq)
 776 {
 777 #define MS(_v, _f)      (((_v) & _f) >> _f##_S)
 778         struct ieee80211com *ic = vap->iv_ic;
 779         u_int kid, len;
 780         uint8_t tmpkey[IEEE80211_KEYBUF_SIZE];
 781         char tmpssid[IEEE80211_NWID_LEN];
 782         int error = 0;
 783
 784         switch (ireq->i_type) {
 785         case IEEE80211_IOC_SSID:
 786                 switch (vap->iv_state) {
 787                 case IEEE80211_S_INIT:
 788                 case IEEE80211_S_SCAN:
 789                         ireq->i_len = vap->iv_des_ssid[0].len;
 790                         memcpy(tmpssid, vap->iv_des_ssid[0].ssid, ireq->i_len);
 791                         break;
 792                 default:
 793                         ireq->i_len = vap->iv_bss->ni_esslen;
 794                         memcpy(tmpssid, vap->iv_bss->ni_essid, ireq->i_len);
 795                         break;
 796                 }
 797                 error = copyout(tmpssid, ireq->i_data, ireq->i_len);
 798                 break;
 799         case IEEE80211_IOC_NUMSSIDS:
 800                 ireq->i_val = 1;
 801                 break;
 802         case IEEE80211_IOC_WEP:
 803                 if ((vap->iv_flags & IEEE80211_F_PRIVACY) == 0)
 804                         ireq->i_val = IEEE80211_WEP_OFF;
 805                 else if (vap->iv_flags & IEEE80211_F_DROPUNENC)
 806                         ireq->i_val = IEEE80211_WEP_ON;
 807                 else
 808                         ireq->i_val = IEEE80211_WEP_MIXED;
 809                 break;
 810         case IEEE80211_IOC_WEPKEY:
 811                 kid = (u_int) ireq->i_val;
 812                 if (kid >= IEEE80211_WEP_NKID)
 813                         return EINVAL;
 814                 len = (u_int) vap->iv_nw_keys[kid].wk_keylen;
 815                 /* NB: only root can read WEP keys */
 816                 if (priv_check(curthread, PRIV_NET80211_GETKEY) == 0) {
 817                         bcopy(vap->iv_nw_keys[kid].wk_key, tmpkey, len);
 818                 } else {
 819                         bzero(tmpkey, len);
 820                 }
 821                 ireq->i_len = len;
 822                 error = copyout(tmpkey, ireq->i_data, len);
 823                 break;
 824         case IEEE80211_IOC_NUMWEPKEYS:
 825                 ireq->i_val = IEEE80211_WEP_NKID;
 826                 break;
 827         case IEEE80211_IOC_WEPTXKEY:
 828                 ireq->i_val = vap->iv_def_txkey;
 829                 break;
 830         case IEEE80211_IOC_AUTHMODE:
 831                 if (vap->iv_flags & IEEE80211_F_WPA)
 832                         ireq->i_val = IEEE80211_AUTH_WPA;
 833                 else
 834                         ireq->i_val = vap->iv_bss->ni_authmode;
 835                 break;
 836         case IEEE80211_IOC_CHANNEL:
 837                 ireq->i_val = ieee80211_chan2ieee(ic, ic->ic_curchan);
 838                 break;
 839         case IEEE80211_IOC_POWERSAVE:
 840                 if (vap->iv_flags & IEEE80211_F_PMGTON)
 841                         ireq->i_val = IEEE80211_POWERSAVE_ON;
 842                 else
 843                         ireq->i_val = IEEE80211_POWERSAVE_OFF;
 844                 break;
 845         case IEEE80211_IOC_POWERSAVESLEEP:
 846                 ireq->i_val = ic->ic_lintval;
 847                 break;
 848         case IEEE80211_IOC_RTSTHRESHOLD:
 849                 ireq->i_val = vap->iv_rtsthreshold;
 850                 break;
 851         case IEEE80211_IOC_PROTMODE:
 852                 ireq->i_val = ic->ic_protmode;
 853                 break;
 854         case IEEE80211_IOC_TXPOWER:
 855                 /*
 856                  * Tx power limit is the min of max regulatory
 857                  * power, any user-set limit, and the max the
 858                  * radio can do.
 859                  *
 860                  * TODO: methodize this
 861                  */
 862                 ireq->i_val = 2*ic->ic_curchan->ic_maxregpower;
 863                 if (ireq->i_val > ic->ic_txpowlimit)
 864                         ireq->i_val = ic->ic_txpowlimit;
 865                 if (ireq->i_val > ic->ic_curchan->ic_maxpower)
 866                         ireq->i_val = ic->ic_curchan->ic_maxpower;
 867                 break;
 868         case IEEE80211_IOC_WPA:
 869                 switch (vap->iv_flags & IEEE80211_F_WPA) {
 870                 case IEEE80211_F_WPA1:
 871                         ireq->i_val = 1;
 872                         break;
 873                 case IEEE80211_F_WPA2:
 874                         ireq->i_val = 2;
 875                         break;
 876                 case IEEE80211_F_WPA1 | IEEE80211_F_WPA2:
 877                         ireq->i_val = 3;
 878                         break;
 879                 default:
 880                         ireq->i_val = 0;
 881                         break;
 882                 }
 883                 break;
 884         case IEEE80211_IOC_CHANLIST:
 885                 error = ieee80211_ioctl_getchanlist(vap, ireq);
 886                 break;
 887         case IEEE80211_IOC_ROAMING:
 888                 ireq->i_val = vap->iv_roaming;
 889                 break;
 890         case IEEE80211_IOC_PRIVACY:
 891                 ireq->i_val = (vap->iv_flags & IEEE80211_F_PRIVACY) != 0;
 892                 break;
 893         case IEEE80211_IOC_DROPUNENCRYPTED:
 894                 ireq->i_val = (vap->iv_flags & IEEE80211_F_DROPUNENC) != 0;
 895                 break;
 896         case IEEE80211_IOC_COUNTERMEASURES:
 897                 ireq->i_val = (vap->iv_flags & IEEE80211_F_COUNTERM) != 0;
 898                 break;
 899         case IEEE80211_IOC_WME:
 900                 ireq->i_val = (vap->iv_flags & IEEE80211_F_WME) != 0;
 901                 break;
 902         case IEEE80211_IOC_HIDESSID:
 903                 ireq->i_val = (vap->iv_flags & IEEE80211_F_HIDESSID) != 0;
 904                 break;
 905         case IEEE80211_IOC_APBRIDGE:
 906                 ireq->i_val = (vap->iv_flags & IEEE80211_F_NOBRIDGE) == 0;
 907                 break;
 908         case IEEE80211_IOC_WPAKEY:
 909                 error = ieee80211_ioctl_getkey(vap, ireq);
 910                 break;
 911         case IEEE80211_IOC_CHANINFO:
 912                 error = ieee80211_ioctl_getchaninfo(vap, ireq);
 913                 break;
 914         case IEEE80211_IOC_BSSID:
 915                 if (ireq->i_len != IEEE80211_ADDR_LEN)
 916                         return EINVAL;
 917                 if (vap->iv_state == IEEE80211_S_RUN || vap->iv_state == IEEE80211_S_SLEEP) {
 918                         error = copyout(vap->iv_opmode == IEEE80211_M_WDS ?
 919                             vap->iv_bss->ni_macaddr : vap->iv_bss->ni_bssid,
 920                             ireq->i_data, ireq->i_len);
 921                 } else
 922                         error = copyout(vap->iv_des_bssid, ireq->i_data,
 923                             ireq->i_len);
 924                 break;
 925         case IEEE80211_IOC_WPAIE:
 926         case IEEE80211_IOC_WPAIE2:
 927                 error = ieee80211_ioctl_getwpaie(vap, ireq, ireq->i_type);
 928                 break;
 929         case IEEE80211_IOC_SCAN_RESULTS:
 930                 error = ieee80211_ioctl_getscanresults(vap, ireq);
 931                 break;
 932         case IEEE80211_IOC_STA_STATS:
 933                 error = ieee80211_ioctl_getstastats(vap, ireq);
 934                 break;
 935         case IEEE80211_IOC_TXPOWMAX:
 936                 ireq->i_val = vap->iv_bss->ni_txpower;
 937                 break;
 938         case IEEE80211_IOC_STA_TXPOW:
 939                 error = ieee80211_ioctl_getstatxpow(vap, ireq);
 940                 break;
 941         case IEEE80211_IOC_STA_INFO:
 942                 error = ieee80211_ioctl_getstainfo(vap, ireq);
 943                 break;
 944         case IEEE80211_IOC_WME_CWMIN:           /* WME: CWmin */
 945         case IEEE80211_IOC_WME_CWMAX:           /* WME: CWmax */
 946         case IEEE80211_IOC_WME_AIFS:            /* WME: AIFS */
 947         case IEEE80211_IOC_WME_TXOPLIMIT:       /* WME: txops limit */
 948         case IEEE80211_IOC_WME_ACM:             /* WME: ACM (bss only) */
 949         case IEEE80211_IOC_WME_ACKPOLICY:       /* WME: ACK policy (!bss only) */
 950                 error = ieee80211_ioctl_getwmeparam(vap, ireq);
 951                 break;
 952         case IEEE80211_IOC_DTIM_PERIOD:
 953                 ireq->i_val = vap->iv_dtim_period;
 954                 break;
 955         case IEEE80211_IOC_BEACON_INTERVAL:
 956                 /* NB: get from ic_bss for station mode */
 957                 ireq->i_val = vap->iv_bss->ni_intval;
 958                 break;
 959         case IEEE80211_IOC_PUREG:
 960                 ireq->i_val = (vap->iv_flags & IEEE80211_F_PUREG) != 0;
 961                 break;
 962         case IEEE80211_IOC_QUIET:
 963                 ireq->i_val = vap->iv_quiet;
 964                 break;
 965         case IEEE80211_IOC_QUIET_COUNT:
 966                 ireq->i_val = vap->iv_quiet_count;
 967                 break;
 968         case IEEE80211_IOC_QUIET_PERIOD:
 969                 ireq->i_val = vap->iv_quiet_period;
 970                 break;
 971         case IEEE80211_IOC_QUIET_DUR:
 972                 ireq->i_val = vap->iv_quiet_duration;
 973                 break;
 974         case IEEE80211_IOC_QUIET_OFFSET:
 975                 ireq->i_val = vap->iv_quiet_offset;
 976                 break;
 977         case IEEE80211_IOC_BGSCAN:
 978                 ireq->i_val = (vap->iv_flags & IEEE80211_F_BGSCAN) != 0;
 979                 break;
 980         case IEEE80211_IOC_BGSCAN_IDLE:
 981                 ireq->i_val = vap->iv_bgscanidle*hz/1000;       /* ms */
 982                 break;
 983         case IEEE80211_IOC_BGSCAN_INTERVAL:
 984                 ireq->i_val = vap->iv_bgscanintvl/hz;           /* seconds */
 985                 break;
 986         case IEEE80211_IOC_SCANVALID:
 987                 ireq->i_val = vap->iv_scanvalid/hz;             /* seconds */
 988                 break;
 989         case IEEE80211_IOC_FRAGTHRESHOLD:
 990                 ireq->i_val = vap->iv_fragthreshold;
 991                 break;
 992         case IEEE80211_IOC_MACCMD:
 993                 error = ieee80211_ioctl_getmaccmd(vap, ireq);
 994                 break;
 995         case IEEE80211_IOC_BURST:
 996                 ireq->i_val = (vap->iv_flags & IEEE80211_F_BURST) != 0;
 997                 break;
 998         case IEEE80211_IOC_BMISSTHRESHOLD:
 999                 ireq->i_val = vap->iv_bmissthreshold;
1000                 break;
1001         case IEEE80211_IOC_CURCHAN:
1002                 error = ieee80211_ioctl_getcurchan(vap, ireq);
1003                 break;
1004         case IEEE80211_IOC_SHORTGI:
1005                 ireq->i_val = 0;
1006                 if (vap->iv_flags_ht & IEEE80211_FHT_SHORTGI20)
1007                         ireq->i_val |= IEEE80211_HTCAP_SHORTGI20;
1008                 if (vap->iv_flags_ht & IEEE80211_FHT_SHORTGI40)
1009                         ireq->i_val |= IEEE80211_HTCAP_SHORTGI40;
1010                 break;
1011         case IEEE80211_IOC_AMPDU:
1012                 ireq->i_val = 0;
1013                 if (vap->iv_flags_ht & IEEE80211_FHT_AMPDU_TX)
1014                         ireq->i_val |= 1;
1015                 if (vap->iv_flags_ht & IEEE80211_FHT_AMPDU_RX)
1016                         ireq->i_val |= 2;
1017                 break;
1018         case IEEE80211_IOC_AMPDU_LIMIT:
1019                 /* XXX TODO: make this a per-node thing; and leave this as global */
1020                 if (vap->iv_opmode == IEEE80211_M_HOSTAP)
1021                         ireq->i_val = vap->iv_ampdu_rxmax;
1022                 else if (vap->iv_state == IEEE80211_S_RUN || vap->iv_state == IEEE80211_S_SLEEP)
1023                         /*
1024                          * XXX TODO: this isn't completely correct, as we've
1025                          * negotiated the higher of the two.
1026                          */
1027                         ireq->i_val = MS(vap->iv_bss->ni_htparam,
1028                             IEEE80211_HTCAP_MAXRXAMPDU);
1029                 else
1030                         ireq->i_val = vap->iv_ampdu_limit;
1031                 break;
1032         case IEEE80211_IOC_AMPDU_DENSITY:
1033                 /* XXX TODO: make this a per-node thing; and leave this as global */
1034                 if (vap->iv_opmode == IEEE80211_M_STA &&
1035                     (vap->iv_state == IEEE80211_S_RUN || vap->iv_state == IEEE80211_S_SLEEP))
1036                         /*
1037                          * XXX TODO: this isn't completely correct, as we've
1038                          * negotiated the higher of the two.
1039                          */
1040                         ireq->i_val = MS(vap->iv_bss->ni_htparam,
1041                             IEEE80211_HTCAP_MPDUDENSITY);
1042                 else
1043                         ireq->i_val = vap->iv_ampdu_density;
1044                 break;
1045         case IEEE80211_IOC_AMSDU:
1046                 ireq->i_val = 0;
1047                 if (vap->iv_flags_ht & IEEE80211_FHT_AMSDU_TX)
1048                         ireq->i_val |= 1;
1049                 if (vap->iv_flags_ht & IEEE80211_FHT_AMSDU_RX)
1050                         ireq->i_val |= 2;
1051                 break;
1052         case IEEE80211_IOC_AMSDU_LIMIT:
1053                 ireq->i_val = vap->iv_amsdu_limit;      /* XXX truncation? */
1054                 break;
1055         case IEEE80211_IOC_PUREN:
1056                 ireq->i_val = (vap->iv_flags_ht & IEEE80211_FHT_PUREN) != 0;
1057                 break;
1058         case IEEE80211_IOC_DOTH:
1059                 ireq->i_val = (vap->iv_flags & IEEE80211_F_DOTH) != 0;
1060                 break;
1061         case IEEE80211_IOC_REGDOMAIN:
1062                 error = ieee80211_ioctl_getregdomain(vap, ireq);
1063                 break;
1064         case IEEE80211_IOC_ROAM:
1065                 error = ieee80211_ioctl_getroam(vap, ireq);
1066                 break;
1067         case IEEE80211_IOC_TXPARAMS:
1068                 error = ieee80211_ioctl_gettxparams(vap, ireq);
1069                 break;
1070         case IEEE80211_IOC_HTCOMPAT:
1071                 ireq->i_val = (vap->iv_flags_ht & IEEE80211_FHT_HTCOMPAT) != 0;
1072                 break;
1073         case IEEE80211_IOC_DWDS:
1074                 ireq->i_val = (vap->iv_flags & IEEE80211_F_DWDS) != 0;
1075                 break;
1076         case IEEE80211_IOC_INACTIVITY:
1077                 ireq->i_val = (vap->iv_flags_ext & IEEE80211_FEXT_INACT) != 0;
1078                 break;
1079         case IEEE80211_IOC_APPIE:
1080                 error = ieee80211_ioctl_getappie(vap, ireq);
1081                 break;
1082         case IEEE80211_IOC_WPS:
1083                 ireq->i_val = (vap->iv_flags_ext & IEEE80211_FEXT_WPS) != 0;
1084                 break;
1085         case IEEE80211_IOC_TSN:
1086                 ireq->i_val = (vap->iv_flags_ext & IEEE80211_FEXT_TSN) != 0;
1087                 break;
1088         case IEEE80211_IOC_DFS:
1089                 ireq->i_val = (vap->iv_flags_ext & IEEE80211_FEXT_DFS) != 0;
1090                 break;
1091         case IEEE80211_IOC_DOTD:
1092                 ireq->i_val = (vap->iv_flags_ext & IEEE80211_FEXT_DOTD) != 0;
1093                 break;
1094         case IEEE80211_IOC_DEVCAPS:
1095                 error = ieee80211_ioctl_getdevcaps(ic, ireq);
1096                 break;
1097         case IEEE80211_IOC_HTPROTMODE:
1098                 ireq->i_val = ic->ic_htprotmode;
1099                 break;
1100         case IEEE80211_IOC_HTCONF:
1101                 if (vap->iv_flags_ht & IEEE80211_FHT_HT) {
1102                         ireq->i_val = 1;
1103                         if (vap->iv_flags_ht & IEEE80211_FHT_USEHT40)
1104                                 ireq->i_val |= 2;
1105                 } else
1106                         ireq->i_val = 0;
1107                 break;
1108         case IEEE80211_IOC_STA_VLAN:
1109                 error = ieee80211_ioctl_getstavlan(vap, ireq);
1110                 break;
1111         case IEEE80211_IOC_SMPS:
1112                 if (vap->iv_opmode == IEEE80211_M_STA &&
1113                     (vap->iv_state == IEEE80211_S_RUN || vap->iv_state == IEEE80211_S_SLEEP)) {
1114                         if (vap->iv_bss->ni_flags & IEEE80211_NODE_MIMO_RTS)
1115                                 ireq->i_val = IEEE80211_HTCAP_SMPS_DYNAMIC;
1116                         else if (vap->iv_bss->ni_flags & IEEE80211_NODE_MIMO_PS)
1117                                 ireq->i_val = IEEE80211_HTCAP_SMPS_ENA;
1118                         else
1119                                 ireq->i_val = IEEE80211_HTCAP_SMPS_OFF;
1120                 } else
1121                         ireq->i_val = vap->iv_htcaps & IEEE80211_HTCAP_SMPS;
1122                 break;
1123         case IEEE80211_IOC_RIFS:
1124                 if (vap->iv_opmode == IEEE80211_M_STA &&
1125                     (vap->iv_state == IEEE80211_S_RUN || vap->iv_state == IEEE80211_S_SLEEP))
1126                         ireq->i_val =
1127                             (vap->iv_bss->ni_flags & IEEE80211_NODE_RIFS) != 0;
1128                 else
1129                         ireq->i_val =
1130                             (vap->iv_flags_ht & IEEE80211_FHT_RIFS) != 0;
1131                 break;
1132         case IEEE80211_IOC_STBC:
1133                 ireq->i_val = 0;
1134                 if (vap->iv_flags_ht & IEEE80211_FHT_STBC_TX)
1135                         ireq->i_val |= 1;
1136                 if (vap->iv_flags_ht & IEEE80211_FHT_STBC_RX)
1137                         ireq->i_val |= 2;
1138                 break;
1139
1140         /* VHT */
1141         case IEEE80211_IOC_VHTCONF:
1142                 ireq->i_val = 0;
1143                 if (vap->iv_flags_vht & IEEE80211_FVHT_VHT)
1144                         ireq->i_val |= 1;
1145                 if (vap->iv_flags_vht & IEEE80211_FVHT_USEVHT40)
1146                         ireq->i_val |= 2;
1147                 if (vap->iv_flags_vht & IEEE80211_FVHT_USEVHT80)
1148                         ireq->i_val |= 4;
1149                 if (vap->iv_flags_vht & IEEE80211_FVHT_USEVHT80P80)
1150                         ireq->i_val |= 8;
1151                 if (vap->iv_flags_vht & IEEE80211_FVHT_USEVHT160)
1152                         ireq->i_val |= 16;
1153                 break;
1154
1155         default:
1156                 error = ieee80211_ioctl_getdefault(vap, ireq);
1157                 break;
1158         }
1159         return error;
1160 #undef MS
1161 }
1162
1163 static int
1164 ieee80211_ioctl_setkey(struct ieee80211vap *vap, struct ieee80211req *ireq)
1165 {
1166         struct ieee80211req_key ik;
1167         struct ieee80211_node *ni;
1168         struct ieee80211_key *wk;
1169         uint16_t kid;
1170         int error, i;
1171
1172         if (ireq->i_len != sizeof(ik))
1173                 return EINVAL;
1174         error = copyin(ireq->i_data, &ik, sizeof(ik));
1175         if (error)
1176                 return error;
1177         /* NB: cipher support is verified by ieee80211_crypt_newkey */
1178         /* NB: this also checks ik->ik_keylen > sizeof(wk->wk_key) */
1179         if (ik.ik_keylen > sizeof(ik.ik_keydata))
1180                 return E2BIG;
1181         kid = ik.ik_keyix;
1182         if (kid == IEEE80211_KEYIX_NONE) {
1183                 /* XXX unicast keys currently must be tx/rx */
1184                 if (ik.ik_flags != (IEEE80211_KEY_XMIT | IEEE80211_KEY_RECV))
1185                         return EINVAL;
1186                 if (vap->iv_opmode == IEEE80211_M_STA) {
1187                         ni = ieee80211_ref_node(vap->iv_bss);
1188                         if (!IEEE80211_ADDR_EQ(ik.ik_macaddr, ni->ni_bssid)) {
1189                                 ieee80211_free_node(ni);
1190                                 return EADDRNOTAVAIL;
1191                         }
1192                 } else {
1193                         ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap,
1194                                 ik.ik_macaddr);
1195                         if (ni == NULL)
1196                                 return ENOENT;
1197                 }
1198                 wk = &ni->ni_ucastkey;
1199         } else {
1200                 if (kid >= IEEE80211_WEP_NKID)
1201                         return EINVAL;
1202                 wk = &vap->iv_nw_keys[kid];
1203                 /*
1204                  * Global slots start off w/o any assigned key index.
1205                  * Force one here for consistency with IEEE80211_IOC_WEPKEY.
1206                  */
1207                 if (wk->wk_keyix == IEEE80211_KEYIX_NONE)
1208                         wk->wk_keyix = kid;
1209                 ni = NULL;
1210         }
1211         error = 0;
1212         ieee80211_key_update_begin(vap);
1213         if (ieee80211_crypto_newkey(vap, ik.ik_type, ik.ik_flags, wk)) {
1214                 wk->wk_keylen = ik.ik_keylen;
1215                 /* NB: MIC presence is implied by cipher type */
1216                 if (wk->wk_keylen > IEEE80211_KEYBUF_SIZE)
1217                         wk->wk_keylen = IEEE80211_KEYBUF_SIZE;
1218                 for (i = 0; i < IEEE80211_TID_SIZE; i++)
1219                         wk->wk_keyrsc[i] = ik.ik_keyrsc;
1220                 wk->wk_keytsc = 0;                      /* new key, reset */
1221                 memset(wk->wk_key, 0, sizeof(wk->wk_key));
1222                 memcpy(wk->wk_key, ik.ik_keydata, ik.ik_keylen);
1223                 IEEE80211_ADDR_COPY(wk->wk_macaddr,
1224                     ni != NULL ?  ni->ni_macaddr : ik.ik_macaddr);
1225                 if (!ieee80211_crypto_setkey(vap, wk))
1226                         error = EIO;
1227                 else if ((ik.ik_flags & IEEE80211_KEY_DEFAULT))
1228                         /*
1229                          * Inform the driver that this is the default
1230                          * transmit key.  Now, ideally we'd just set
1231                          * a flag in the key update that would
1232                          * say "yes, we're the default key", but
1233                          * that currently isn't the way the ioctl ->
1234                          * key interface works.
1235                          */
1236                         ieee80211_crypto_set_deftxkey(vap, kid);
1237         } else
1238                 error = ENXIO;
1239         ieee80211_key_update_end(vap);
1240         if (ni != NULL)
1241                 ieee80211_free_node(ni);
1242         return error;
1243 }
1244
1245 static int
1246 ieee80211_ioctl_delkey(struct ieee80211vap *vap, struct ieee80211req *ireq)
1247 {
1248         struct ieee80211req_del_key dk;
1249         int kid, error;
1250
1251         if (ireq->i_len != sizeof(dk))
1252                 return EINVAL;
1253         error = copyin(ireq->i_data, &dk, sizeof(dk));
1254         if (error)
1255                 return error;
1256         kid = dk.idk_keyix;
1257         /* XXX uint8_t -> uint16_t */
1258         if (dk.idk_keyix == (uint8_t) IEEE80211_KEYIX_NONE) {
1259                 struct ieee80211_node *ni;
1260
1261                 if (vap->iv_opmode == IEEE80211_M_STA) {
1262                         ni = ieee80211_ref_node(vap->iv_bss);
1263                         if (!IEEE80211_ADDR_EQ(dk.idk_macaddr, ni->ni_bssid)) {
1264                                 ieee80211_free_node(ni);
1265                                 return EADDRNOTAVAIL;
1266                         }
1267                 } else {
1268                         ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap,
1269                                 dk.idk_macaddr);
1270                         if (ni == NULL)
1271                                 return ENOENT;
1272                 }
1273                 /* XXX error return */
1274                 ieee80211_node_delucastkey(ni);
1275                 ieee80211_free_node(ni);
1276         } else {
1277                 if (kid >= IEEE80211_WEP_NKID)
1278                         return EINVAL;
1279                 /* XXX error return */
1280                 ieee80211_crypto_delkey(vap, &vap->iv_nw_keys[kid]);
1281         }
1282         return 0;
1283 }
1284
1285 struct mlmeop {
1286         struct ieee80211vap *vap;
1287         int     op;
1288         int     reason;
1289 };
1290
1291 static void
1292 mlmedebug(struct ieee80211vap *vap, const uint8_t mac[IEEE80211_ADDR_LEN],
1293         int op, int reason)
1294 {
1295 #ifdef IEEE80211_DEBUG
1296         static const struct {
1297                 int mask;
1298                 const char *opstr;
1299         } ops[] = {
1300                 { 0, "op#0" },
1301                 { IEEE80211_MSG_IOCTL | IEEE80211_MSG_STATE |
1302                   IEEE80211_MSG_ASSOC, "assoc" },
1303                 { IEEE80211_MSG_IOCTL | IEEE80211_MSG_STATE |
1304                   IEEE80211_MSG_ASSOC, "disassoc" },
1305                 { IEEE80211_MSG_IOCTL | IEEE80211_MSG_STATE |
1306                   IEEE80211_MSG_AUTH, "deauth" },
1307                 { IEEE80211_MSG_IOCTL | IEEE80211_MSG_STATE |
1308                   IEEE80211_MSG_AUTH, "authorize" },
1309                 { IEEE80211_MSG_IOCTL | IEEE80211_MSG_STATE |
1310                   IEEE80211_MSG_AUTH, "unauthorize" },
1311         };
1312
1313         if (op == IEEE80211_MLME_AUTH) {
1314                 IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_IOCTL |
1315                     IEEE80211_MSG_STATE | IEEE80211_MSG_AUTH, mac,
1316                     "station authenticate %s via MLME (reason: %d (%s))",
1317                     reason == IEEE80211_STATUS_SUCCESS ? "ACCEPT" : "REJECT",
1318                     reason, ieee80211_reason_to_string(reason));
1319         } else if (!(IEEE80211_MLME_ASSOC <= op && op <= IEEE80211_MLME_AUTH)) {
1320                 IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_ANY, mac,
1321                     "unknown MLME request %d (reason: %d (%s))", op, reason,
1322                     ieee80211_reason_to_string(reason));
1323         } else if (reason == IEEE80211_STATUS_SUCCESS) {
1324                 IEEE80211_NOTE_MAC(vap, ops[op].mask, mac,
1325                     "station %s via MLME", ops[op].opstr);
1326         } else {
1327                 IEEE80211_NOTE_MAC(vap, ops[op].mask, mac,
1328                     "station %s via MLME (reason: %d (%s))", ops[op].opstr,
1329                     reason, ieee80211_reason_to_string(reason));
1330         }
1331 #endif /* IEEE80211_DEBUG */
1332 }
1333
1334 static void
1335 domlme(void *arg, struct ieee80211_node *ni)
1336 {
1337         struct mlmeop *mop = arg;
1338         struct ieee80211vap *vap = ni->ni_vap;
1339
1340         if (vap != mop->vap)
1341                 return;
1342         /*
1343          * NB: if ni_associd is zero then the node is already cleaned
1344          * up and we don't need to do this (we're safely holding a
1345          * reference but should otherwise not modify it's state).
1346          */
1347         if (ni->ni_associd == 0)
1348                 return;
1349         mlmedebug(vap, ni->ni_macaddr, mop->op, mop->reason);
1350         if (mop->op == IEEE80211_MLME_DEAUTH) {
1351                 IEEE80211_SEND_MGMT(ni, IEEE80211_FC0_SUBTYPE_DEAUTH,
1352                     mop->reason);
1353         } else {
1354                 IEEE80211_SEND_MGMT(ni, IEEE80211_FC0_SUBTYPE_DISASSOC,
1355                     mop->reason);
1356         }
1357         ieee80211_node_leave(ni);
1358 }
1359
1360 static int
1361 setmlme_dropsta(struct ieee80211vap *vap,
1362         const uint8_t mac[IEEE80211_ADDR_LEN], struct mlmeop *mlmeop)
1363 {
1364         struct ieee80211_node_table *nt = &vap->iv_ic->ic_sta;
1365         struct ieee80211_node *ni;
1366         int error = 0;
1367
1368         /* NB: the broadcast address means do 'em all */
1369         if (!IEEE80211_ADDR_EQ(mac, vap->iv_ifp->if_broadcastaddr)) {
1370                 IEEE80211_NODE_LOCK(nt);
1371                 ni = ieee80211_find_node_locked(nt, mac);
1372                 IEEE80211_NODE_UNLOCK(nt);
1373                 /*
1374                  * Don't do the node update inside the node
1375                  * table lock.  This unfortunately causes LORs
1376                  * with drivers and their TX paths.
1377                  */
1378                 if (ni != NULL) {
1379                         domlme(mlmeop, ni);
1380                         ieee80211_free_node(ni);
1381                 } else
1382                         error = ENOENT;
1383         } else {
1384                 ieee80211_iterate_nodes(nt, domlme, mlmeop);
1385         }
1386         return error;
1387 }
1388
1389 static int
1390 setmlme_common(struct ieee80211vap *vap, int op,
1391         const uint8_t mac[IEEE80211_ADDR_LEN], int reason)
1392 {
1393         struct ieee80211com *ic = vap->iv_ic;
1394         struct ieee80211_node_table *nt = &ic->ic_sta;
1395         struct ieee80211_node *ni;
1396         struct mlmeop mlmeop;
1397         int error;
1398
1399         error = 0;
1400         switch (op) {
1401         case IEEE80211_MLME_DISASSOC:
1402         case IEEE80211_MLME_DEAUTH:
1403                 switch (vap->iv_opmode) {
1404                 case IEEE80211_M_STA:
1405                         mlmedebug(vap, vap->iv_bss->ni_macaddr, op, reason);
1406                         /* XXX not quite right */
1407                         ieee80211_new_state(vap, IEEE80211_S_INIT, reason);
1408                         break;
1409                 case IEEE80211_M_HOSTAP:
1410                         mlmeop.vap = vap;
1411                         mlmeop.op = op;
1412                         mlmeop.reason = reason;
1413                         error = setmlme_dropsta(vap, mac, &mlmeop);
1414                         break;
1415                 case IEEE80211_M_WDS:
1416                         /* XXX user app should send raw frame? */
1417                         if (op != IEEE80211_MLME_DEAUTH) {
1418                                 error = EINVAL;
1419                                 break;
1420                         }
1421 #if 0
1422                         /* XXX accept any address, simplifies user code */
1423                         if (!IEEE80211_ADDR_EQ(mac, vap->iv_bss->ni_macaddr)) {
1424                                 error = EINVAL;
1425                                 break;
1426                         }
1427 #endif
1428                         mlmedebug(vap, vap->iv_bss->ni_macaddr, op, reason);
1429                         ni = ieee80211_ref_node(vap->iv_bss);
1430                         IEEE80211_SEND_MGMT(ni,
1431                             IEEE80211_FC0_SUBTYPE_DEAUTH, reason);
1432                         ieee80211_free_node(ni);
1433                         break;
1434                 case IEEE80211_M_MBSS:
1435                         IEEE80211_NODE_LOCK(nt);
1436                         ni = ieee80211_find_node_locked(nt, mac);
1437                         /*
1438                          * Don't do the node update inside the node
1439                          * table lock.  This unfortunately causes LORs
1440                          * with drivers and their TX paths.
1441                          */
1442                         IEEE80211_NODE_UNLOCK(nt);
1443                         if (ni != NULL) {
1444                                 ieee80211_node_leave(ni);
1445                                 ieee80211_free_node(ni);
1446                         } else {
1447                                 error = ENOENT;
1448                         }
1449                         break;
1450                 default:
1451                         error = EINVAL;
1452                         break;
1453                 }
1454                 break;
1455         case IEEE80211_MLME_AUTHORIZE:
1456         case IEEE80211_MLME_UNAUTHORIZE:
1457                 if (vap->iv_opmode != IEEE80211_M_HOSTAP &&
1458                     vap->iv_opmode != IEEE80211_M_WDS) {
1459                         error = EINVAL;
1460                         break;
1461                 }
1462                 IEEE80211_NODE_LOCK(nt);
1463                 ni = ieee80211_find_vap_node_locked(nt, vap, mac);
1464                 /*
1465                  * Don't do the node update inside the node
1466                  * table lock.  This unfortunately causes LORs
1467                  * with drivers and their TX paths.
1468                  */
1469                 IEEE80211_NODE_UNLOCK(nt);
1470                 if (ni != NULL) {
1471                         mlmedebug(vap, mac, op, reason);
1472                         if (op == IEEE80211_MLME_AUTHORIZE)
1473                                 ieee80211_node_authorize(ni);
1474                         else
1475                                 ieee80211_node_unauthorize(ni);
1476                         ieee80211_free_node(ni);
1477                 } else
1478                         error = ENOENT;
1479                 break;
1480         case IEEE80211_MLME_AUTH:
1481                 if (vap->iv_opmode != IEEE80211_M_HOSTAP) {
1482                         error = EINVAL;
1483                         break;
1484                 }
1485                 IEEE80211_NODE_LOCK(nt);
1486                 ni = ieee80211_find_vap_node_locked(nt, vap, mac);
1487                 /*
1488                  * Don't do the node update inside the node
1489                  * table lock.  This unfortunately causes LORs
1490                  * with drivers and their TX paths.
1491                  */
1492                 IEEE80211_NODE_UNLOCK(nt);
1493                 if (ni != NULL) {
1494                         mlmedebug(vap, mac, op, reason);
1495                         if (reason == IEEE80211_STATUS_SUCCESS) {
1496                                 IEEE80211_SEND_MGMT(ni,
1497                                     IEEE80211_FC0_SUBTYPE_AUTH, 2);
1498                                 /*
1499                                  * For shared key auth, just continue the
1500                                  * exchange.  Otherwise when 802.1x is not in
1501                                  * use mark the port authorized at this point
1502                                  * so traffic can flow.
1503                                  */
1504                                 if (ni->ni_authmode != IEEE80211_AUTH_8021X &&
1505                                     ni->ni_challenge == NULL)
1506                                       ieee80211_node_authorize(ni);
1507                         } else {
1508                                 vap->iv_stats.is_rx_acl++;
1509                                 ieee80211_send_error(ni, ni->ni_macaddr,
1510                                     IEEE80211_FC0_SUBTYPE_AUTH, 2|(reason<<16));
1511                                 ieee80211_node_leave(ni);
1512                         }
1513                         ieee80211_free_node(ni);
1514                 } else
1515                         error = ENOENT;
1516                 break;
1517         default:
1518                 error = EINVAL;
1519                 break;
1520         }
1521         return error;
1522 }
1523
1524 struct scanlookup {
1525         const uint8_t *mac;
1526         int esslen;
1527         const uint8_t *essid;
1528         const struct ieee80211_scan_entry *se;
1529 };
1530
1531 /*
1532  * Match mac address and any ssid.
1533  */
1534 static void
1535 mlmelookup(void *arg, const struct ieee80211_scan_entry *se)
1536 {
1537         struct scanlookup *look = arg;
1538
1539         if (!IEEE80211_ADDR_EQ(look->mac, se->se_macaddr))
1540                 return;
1541         if (look->esslen != 0) {
1542                 if (se->se_ssid[1] != look->esslen)
1543                         return;
1544                 if (memcmp(look->essid, se->se_ssid+2, look->esslen))
1545                         return;
1546         }
1547         look->se = se;
1548 }
1549
1550 static int
1551 setmlme_assoc_sta(struct ieee80211vap *vap,
1552         const uint8_t mac[IEEE80211_ADDR_LEN], int ssid_len,
1553         const uint8_t ssid[IEEE80211_NWID_LEN])
1554 {
1555         struct scanlookup lookup;
1556
1557         KASSERT(vap->iv_opmode == IEEE80211_M_STA,
1558             ("expected opmode STA not %s",
1559             ieee80211_opmode_name[vap->iv_opmode]));
1560
1561         /* NB: this is racey if roaming is !manual */
1562         lookup.se = NULL;
1563         lookup.mac = mac;
1564         lookup.esslen = ssid_len;
1565         lookup.essid = ssid;
1566         ieee80211_scan_iterate(vap, mlmelookup, &lookup);
1567         if (lookup.se == NULL)
1568                 return ENOENT;
1569         mlmedebug(vap, mac, IEEE80211_MLME_ASSOC, 0);
1570         if (!ieee80211_sta_join(vap, lookup.se->se_chan, lookup.se))
1571                 return EIO;             /* XXX unique but could be better */
1572         return 0;
1573 }
1574
1575 static int
1576 setmlme_assoc_adhoc(struct ieee80211vap *vap,
1577         const uint8_t mac[IEEE80211_ADDR_LEN], int ssid_len,
1578         const uint8_t ssid[IEEE80211_NWID_LEN])
1579 {
1580         struct ieee80211_scan_req *sr;
1581         int error;
1582
1583         KASSERT(vap->iv_opmode == IEEE80211_M_IBSS ||
1584             vap->iv_opmode == IEEE80211_M_AHDEMO,
1585             ("expected opmode IBSS or AHDEMO not %s",
1586             ieee80211_opmode_name[vap->iv_opmode]));
1587
1588         if (ssid_len == 0)
1589                 return EINVAL;
1590
1591         sr = IEEE80211_MALLOC(sizeof(*sr), M_TEMP,
1592              IEEE80211_M_NOWAIT | IEEE80211_M_ZERO);
1593         if (sr == NULL)
1594                 return ENOMEM;
1595
1596         /* NB: IEEE80211_IOC_SSID call missing for ap_scan=2. */
1597         memset(vap->iv_des_ssid[0].ssid, 0, IEEE80211_NWID_LEN);
1598         vap->iv_des_ssid[0].len = ssid_len;
1599         memcpy(vap->iv_des_ssid[0].ssid, ssid, ssid_len);
1600         vap->iv_des_nssid = 1;
1601
1602         sr->sr_flags = IEEE80211_IOC_SCAN_ACTIVE | IEEE80211_IOC_SCAN_ONCE;
1603         sr->sr_duration = IEEE80211_IOC_SCAN_FOREVER;
1604         memcpy(sr->sr_ssid[0].ssid, ssid, ssid_len);
1605         sr->sr_ssid[0].len = ssid_len;
1606         sr->sr_nssid = 1;
1607
1608         error = ieee80211_scanreq(vap, sr);
1609
1610         IEEE80211_FREE(sr, M_TEMP);
1611         return error;
1612 }
1613
1614 static int
1615 ieee80211_ioctl_setmlme(struct ieee80211vap *vap, struct ieee80211req *ireq)
1616 {
1617         struct ieee80211req_mlme mlme;
1618         int error;
1619
1620         if (ireq->i_len != sizeof(mlme))
1621                 return EINVAL;
1622         error = copyin(ireq->i_data, &mlme, sizeof(mlme));
1623         if (error)
1624                 return error;
1625         if  (vap->iv_opmode == IEEE80211_M_STA &&
1626             mlme.im_op == IEEE80211_MLME_ASSOC)
1627                 return setmlme_assoc_sta(vap, mlme.im_macaddr,
1628                     vap->iv_des_ssid[0].len, vap->iv_des_ssid[0].ssid);
1629         else if ((vap->iv_opmode == IEEE80211_M_IBSS ||
1630             vap->iv_opmode == IEEE80211_M_AHDEMO) &&
1631             mlme.im_op == IEEE80211_MLME_ASSOC)
1632                 return setmlme_assoc_adhoc(vap, mlme.im_macaddr,
1633                     mlme.im_ssid_len, mlme.im_ssid);
1634         else
1635                 return setmlme_common(vap, mlme.im_op,
1636                     mlme.im_macaddr, mlme.im_reason);
1637 }
1638
1639 static int
1640 ieee80211_ioctl_macmac(struct ieee80211vap *vap, struct ieee80211req *ireq)
1641 {
1642         uint8_t mac[IEEE80211_ADDR_LEN];
1643         const struct ieee80211_aclator *acl = vap->iv_acl;
1644         int error;
1645
1646         if (ireq->i_len != sizeof(mac))
1647                 return EINVAL;
1648         error = copyin(ireq->i_data, mac, ireq->i_len);
1649         if (error)
1650                 return error;
1651         if (acl == NULL) {
1652                 acl = ieee80211_aclator_get("mac");
1653                 if (acl == NULL || !acl->iac_attach(vap))
1654                         return EINVAL;
1655                 vap->iv_acl = acl;
1656         }
1657         if (ireq->i_type == IEEE80211_IOC_ADDMAC)
1658                 acl->iac_add(vap, mac);
1659         else
1660                 acl->iac_remove(vap, mac);
1661         return 0;
1662 }
1663
1664 static int
1665 ieee80211_ioctl_setmaccmd(struct ieee80211vap *vap, struct ieee80211req *ireq)
1666 {
1667         const struct ieee80211_aclator *acl = vap->iv_acl;
1668
1669         switch (ireq->i_val) {
1670         case IEEE80211_MACCMD_POLICY_OPEN:
1671         case IEEE80211_MACCMD_POLICY_ALLOW:
1672         case IEEE80211_MACCMD_POLICY_DENY:
1673         case IEEE80211_MACCMD_POLICY_RADIUS:
1674                 if (acl == NULL) {
1675                         acl = ieee80211_aclator_get("mac");
1676                         if (acl == NULL || !acl->iac_attach(vap))
1677                                 return EINVAL;
1678                         vap->iv_acl = acl;
1679                 }
1680                 acl->iac_setpolicy(vap, ireq->i_val);
1681                 break;
1682         case IEEE80211_MACCMD_FLUSH:
1683                 if (acl != NULL)
1684                         acl->iac_flush(vap);
1685                 /* NB: silently ignore when not in use */
1686                 break;
1687         case IEEE80211_MACCMD_DETACH:
1688                 if (acl != NULL) {
1689                         vap->iv_acl = NULL;
1690                         acl->iac_detach(vap);
1691                 }
1692                 break;
1693         default:
1694                 if (acl == NULL)
1695                         return EINVAL;
1696                 else
1697                         return acl->iac_setioctl(vap, ireq);
1698         }
1699         return 0;
1700 }
1701
1702 static int
1703 ieee80211_ioctl_setchanlist(struct ieee80211vap *vap, struct ieee80211req *ireq)
1704 {
1705         struct ieee80211com *ic = vap->iv_ic;
1706         uint8_t *chanlist, *list;
1707         int i, nchan, maxchan, error;
1708
1709         if (ireq->i_len > sizeof(ic->ic_chan_active))
1710                 ireq->i_len = sizeof(ic->ic_chan_active);
1711         list = IEEE80211_MALLOC(ireq->i_len + IEEE80211_CHAN_BYTES, M_TEMP,
1712             IEEE80211_M_NOWAIT | IEEE80211_M_ZERO);
1713         if (list == NULL)
1714                 return ENOMEM;
1715         error = copyin(ireq->i_data, list, ireq->i_len);
1716         if (error) {
1717                 IEEE80211_FREE(list, M_TEMP);
1718                 return error;
1719         }
1720         nchan = 0;
1721         chanlist = list + ireq->i_len;          /* NB: zero'd already */
1722         maxchan = ireq->i_len * NBBY;
1723         for (i = 0; i < ic->ic_nchans; i++) {
1724                 const struct ieee80211_channel *c = &ic->ic_channels[i];
1725                 /*
1726                  * Calculate the intersection of the user list and the
1727                  * available channels so users can do things like specify
1728                  * 1-255 to get all available channels.
1729                  */
1730                 if (c->ic_ieee < maxchan && isset(list, c->ic_ieee)) {
1731                         setbit(chanlist, c->ic_ieee);
1732                         nchan++;
1733                 }
1734         }
1735         if (nchan == 0) {
1736                 IEEE80211_FREE(list, M_TEMP);
1737                 return EINVAL;
1738         }
1739         if (ic->ic_bsschan != IEEE80211_CHAN_ANYC &&    /* XXX */
1740             isclr(chanlist, ic->ic_bsschan->ic_ieee))
1741                 ic->ic_bsschan = IEEE80211_CHAN_ANYC;
1742         memcpy(ic->ic_chan_active, chanlist, IEEE80211_CHAN_BYTES);
1743         ieee80211_scan_flush(vap);
1744         IEEE80211_FREE(list, M_TEMP);
1745         return ENETRESET;
1746 }
1747
1748 static int
1749 ieee80211_ioctl_setstastats(struct ieee80211vap *vap, struct ieee80211req *ireq)
1750 {
1751         struct ieee80211_node *ni;
1752         uint8_t macaddr[IEEE80211_ADDR_LEN];
1753         int error;
1754
1755         /*
1756          * NB: we could copyin ieee80211req_sta_stats so apps
1757          *     could make selective changes but that's overkill;
1758          *     just clear all stats for now.
1759          */
1760         if (ireq->i_len < IEEE80211_ADDR_LEN)
1761                 return EINVAL;
1762         error = copyin(ireq->i_data, macaddr, IEEE80211_ADDR_LEN);
1763         if (error != 0)
1764                 return error;
1765         ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap, macaddr);
1766         if (ni == NULL)
1767                 return ENOENT;
1768         /* XXX require ni_vap == vap? */
1769         memset(&ni->ni_stats, 0, sizeof(ni->ni_stats));
1770         ieee80211_free_node(ni);
1771         return 0;
1772 }
1773
1774 static int
1775 ieee80211_ioctl_setstatxpow(struct ieee80211vap *vap, struct ieee80211req *ireq)
1776 {
1777         struct ieee80211_node *ni;
1778         struct ieee80211req_sta_txpow txpow;
1779         int error;
1780
1781         if (ireq->i_len != sizeof(txpow))
1782                 return EINVAL;
1783         error = copyin(ireq->i_data, &txpow, sizeof(txpow));
1784         if (error != 0)
1785                 return error;
1786         ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap, txpow.it_macaddr);
1787         if (ni == NULL)
1788                 return ENOENT;
1789         ni->ni_txpower = txpow.it_txpow;
1790         ieee80211_free_node(ni);
1791         return error;
1792 }
1793
1794 static int
1795 ieee80211_ioctl_setwmeparam(struct ieee80211vap *vap, struct ieee80211req *ireq)
1796 {
1797         struct ieee80211com *ic = vap->iv_ic;
1798         struct ieee80211_wme_state *wme = &ic->ic_wme;
1799         struct wmeParams *wmep, *chanp;
1800         int isbss, ac, aggrmode;
1801
1802         if ((ic->ic_caps & IEEE80211_C_WME) == 0)
1803                 return EOPNOTSUPP;
1804
1805         isbss = (ireq->i_len & IEEE80211_WMEPARAM_BSS);
1806         ac = (ireq->i_len & IEEE80211_WMEPARAM_VAL);
1807         aggrmode = (wme->wme_flags & WME_F_AGGRMODE);
1808         if (ac >= WME_NUM_AC)
1809                 ac = WME_AC_BE;
1810         if (isbss) {
1811                 chanp = &wme->wme_bssChanParams.cap_wmeParams[ac];
1812                 wmep = &wme->wme_wmeBssChanParams.cap_wmeParams[ac];
1813         } else {
1814                 chanp = &wme->wme_chanParams.cap_wmeParams[ac];
1815                 wmep = &wme->wme_wmeChanParams.cap_wmeParams[ac];
1816         }
1817         switch (ireq->i_type) {
1818         case IEEE80211_IOC_WME_CWMIN:           /* WME: CWmin */
1819                 wmep->wmep_logcwmin = ireq->i_val;
1820                 if (!isbss || !aggrmode)
1821                         chanp->wmep_logcwmin = ireq->i_val;
1822                 break;
1823         case IEEE80211_IOC_WME_CWMAX:           /* WME: CWmax */
1824                 wmep->wmep_logcwmax = ireq->i_val;
1825                 if (!isbss || !aggrmode)
1826                         chanp->wmep_logcwmax = ireq->i_val;
1827                 break;
1828         case IEEE80211_IOC_WME_AIFS:            /* WME: AIFS */
1829                 wmep->wmep_aifsn = ireq->i_val;
1830                 if (!isbss || !aggrmode)
1831                         chanp->wmep_aifsn = ireq->i_val;
1832                 break;
1833         case IEEE80211_IOC_WME_TXOPLIMIT:       /* WME: txops limit */
1834                 wmep->wmep_txopLimit = ireq->i_val;
1835                 if (!isbss || !aggrmode)
1836                         chanp->wmep_txopLimit = ireq->i_val;
1837                 break;
1838         case IEEE80211_IOC_WME_ACM:             /* WME: ACM (bss only) */
1839                 wmep->wmep_acm = ireq->i_val;
1840                 if (!aggrmode)
1841                         chanp->wmep_acm = ireq->i_val;
1842                 break;
1843         case IEEE80211_IOC_WME_ACKPOLICY:       /* WME: ACK policy (!bss only)*/
1844                 wmep->wmep_noackPolicy = chanp->wmep_noackPolicy =
1845                         (ireq->i_val) == 0;
1846                 break;
1847         }
1848         ieee80211_wme_updateparams(vap);
1849         return 0;
1850 }
1851
1852 static int
1853 find11gchannel(struct ieee80211com *ic, int start, int freq)
1854 {
1855         const struct ieee80211_channel *c;
1856         int i;
1857
1858         for (i = start+1; i < ic->ic_nchans; i++) {
1859                 c = &ic->ic_channels[i];
1860                 if (c->ic_freq == freq && IEEE80211_IS_CHAN_ANYG(c))
1861                         return 1;
1862         }
1863         /* NB: should not be needed but in case things are mis-sorted */
1864         for (i = 0; i < start; i++) {
1865                 c = &ic->ic_channels[i];
1866                 if (c->ic_freq == freq && IEEE80211_IS_CHAN_ANYG(c))
1867                         return 1;
1868         }
1869         return 0;
1870 }
1871
1872 static struct ieee80211_channel *
1873 findchannel(struct ieee80211com *ic, int ieee, int mode)
1874 {
1875         static const u_int chanflags[IEEE80211_MODE_MAX] = {
1876             [IEEE80211_MODE_AUTO]       = 0,
1877             [IEEE80211_MODE_11A]        = IEEE80211_CHAN_A,
1878             [IEEE80211_MODE_11B]        = IEEE80211_CHAN_B,
1879             [IEEE80211_MODE_11G]        = IEEE80211_CHAN_G,
1880             [IEEE80211_MODE_FH]         = IEEE80211_CHAN_FHSS,
1881             [IEEE80211_MODE_TURBO_A]    = IEEE80211_CHAN_108A,
1882             [IEEE80211_MODE_TURBO_G]    = IEEE80211_CHAN_108G,
1883             [IEEE80211_MODE_STURBO_A]   = IEEE80211_CHAN_STURBO,
1884             [IEEE80211_MODE_HALF]       = IEEE80211_CHAN_HALF,
1885             [IEEE80211_MODE_QUARTER]    = IEEE80211_CHAN_QUARTER,
1886             /* NB: handled specially below */
1887             [IEEE80211_MODE_11NA]       = IEEE80211_CHAN_A,
1888             [IEEE80211_MODE_11NG]       = IEEE80211_CHAN_G,
1889             [IEEE80211_MODE_VHT_5GHZ]   = IEEE80211_CHAN_A,
1890             [IEEE80211_MODE_VHT_2GHZ]   = IEEE80211_CHAN_G,
1891         };
1892         u_int modeflags;
1893         int i;
1894
1895         modeflags = chanflags[mode];
1896         for (i = 0; i < ic->ic_nchans; i++) {
1897                 struct ieee80211_channel *c = &ic->ic_channels[i];
1898
1899                 if (c->ic_ieee != ieee)
1900                         continue;
1901                 if (mode == IEEE80211_MODE_AUTO) {
1902                         /* ignore turbo channels for autoselect */
1903                         if (IEEE80211_IS_CHAN_TURBO(c))
1904                                 continue;
1905                         /*
1906                          * XXX special-case 11b/g channels so we
1907                          *     always select the g channel if both
1908                          *     are present.
1909                          * XXX prefer HT to non-HT?
1910                          */
1911                         if (!IEEE80211_IS_CHAN_B(c) ||
1912                             !find11gchannel(ic, i, c->ic_freq))
1913                                 return c;
1914                 } else {
1915                         /* must check VHT specifically */
1916                         if ((mode == IEEE80211_MODE_VHT_5GHZ ||
1917                             mode == IEEE80211_MODE_VHT_2GHZ) &&
1918                             !IEEE80211_IS_CHAN_VHT(c))
1919                                 continue;
1920
1921                         /*
1922                          * Must check HT specially - only match on HT,
1923                          * not HT+VHT channels
1924                          */
1925                         if ((mode == IEEE80211_MODE_11NA ||
1926                             mode == IEEE80211_MODE_11NG) &&
1927                             !IEEE80211_IS_CHAN_HT(c))
1928                                 continue;
1929
1930                         if ((mode == IEEE80211_MODE_11NA ||
1931                             mode == IEEE80211_MODE_11NG) &&
1932                             IEEE80211_IS_CHAN_VHT(c))
1933                                 continue;
1934
1935                         /* Check that the modeflags above match */
1936                         if ((c->ic_flags & modeflags) == modeflags)
1937                                 return c;
1938                 }
1939         }
1940         return NULL;
1941 }
1942
1943 /*
1944  * Check the specified against any desired mode (aka netband).
1945  * This is only used (presently) when operating in hostap mode
1946  * to enforce consistency.
1947  */
1948 static int
1949 check_mode_consistency(const struct ieee80211_channel *c, int mode)
1950 {
1951         KASSERT(c != IEEE80211_CHAN_ANYC, ("oops, no channel"));
1952
1953         switch (mode) {
1954         case IEEE80211_MODE_11B:
1955                 return (IEEE80211_IS_CHAN_B(c));
1956         case IEEE80211_MODE_11G:
1957                 return (IEEE80211_IS_CHAN_ANYG(c) && !IEEE80211_IS_CHAN_HT(c));
1958         case IEEE80211_MODE_11A:
1959                 return (IEEE80211_IS_CHAN_A(c) && !IEEE80211_IS_CHAN_HT(c));
1960         case IEEE80211_MODE_STURBO_A:
1961                 return (IEEE80211_IS_CHAN_STURBO(c));
1962         case IEEE80211_MODE_11NA:
1963                 return (IEEE80211_IS_CHAN_HTA(c));
1964         case IEEE80211_MODE_11NG:
1965                 return (IEEE80211_IS_CHAN_HTG(c));
1966         }
1967         return 1;
1968
1969 }
1970
1971 /*
1972  * Common code to set the current channel.  If the device
1973  * is up and running this may result in an immediate channel
1974  * change or a kick of the state machine.
1975  */
1976 static int
1977 setcurchan(struct ieee80211vap *vap, struct ieee80211_channel *c)
1978 {
1979         struct ieee80211com *ic = vap->iv_ic;
1980         int error;
1981
1982         if (c != IEEE80211_CHAN_ANYC) {
1983                 if (IEEE80211_IS_CHAN_RADAR(c))
1984                         return EBUSY;   /* XXX better code? */
1985                 if (vap->iv_opmode == IEEE80211_M_HOSTAP) {
1986                         if (IEEE80211_IS_CHAN_NOHOSTAP(c))
1987                                 return EINVAL;
1988                         if (!check_mode_consistency(c, vap->iv_des_mode))
1989                                 return EINVAL;
1990                 } else if (vap->iv_opmode == IEEE80211_M_IBSS) {
1991                         if (IEEE80211_IS_CHAN_NOADHOC(c))
1992                                 return EINVAL;
1993                 }
1994                 if ((vap->iv_state == IEEE80211_S_RUN || vap->iv_state == IEEE80211_S_SLEEP) &&
1995                     vap->iv_bss->ni_chan == c)
1996                         return 0;       /* NB: nothing to do */
1997         }
1998         vap->iv_des_chan = c;
1999
2000         error = 0;
2001         if (vap->iv_opmode == IEEE80211_M_MONITOR &&
2002             vap->iv_des_chan != IEEE80211_CHAN_ANYC) {
2003                 /*
2004                  * Monitor mode can switch directly.
2005                  */
2006                 if (IFNET_IS_UP_RUNNING(vap->iv_ifp)) {
2007                         /* XXX need state machine for other vap's to follow */
2008                         ieee80211_setcurchan(ic, vap->iv_des_chan);
2009                         vap->iv_bss->ni_chan = ic->ic_curchan;
2010                 } else
2011                         ic->ic_curchan = vap->iv_des_chan;
2012                         ic->ic_rt = ieee80211_get_ratetable(ic->ic_curchan);
2013         } else {
2014                 /*
2015                  * Need to go through the state machine in case we
2016                  * need to reassociate or the like.  The state machine
2017                  * will pickup the desired channel and avoid scanning.
2018                  */
2019                 if (IS_UP_AUTO(vap))
2020                         ieee80211_new_state(vap, IEEE80211_S_SCAN, 0);
2021                 else if (vap->iv_des_chan != IEEE80211_CHAN_ANYC) {
2022                         /*
2023                          * When not up+running and a real channel has
2024                          * been specified fix the current channel so
2025                          * there is immediate feedback; e.g. via ifconfig.
2026                          */
2027                         ic->ic_curchan = vap->iv_des_chan;
2028                         ic->ic_rt = ieee80211_get_ratetable(ic->ic_curchan);
2029                 }
2030         }
2031         return error;
2032 }
2033
2034 /*
2035  * Old api for setting the current channel; this is
2036  * deprecated because channel numbers are ambiguous.
2037  */
2038 static int
2039 ieee80211_ioctl_setchannel(struct ieee80211vap *vap,
2040         const struct ieee80211req *ireq)
2041 {
2042         struct ieee80211com *ic = vap->iv_ic;
2043         struct ieee80211_channel *c;
2044
2045         /* XXX 0xffff overflows 16-bit signed */
2046         if (ireq->i_val == 0 ||
2047             ireq->i_val == (int16_t) IEEE80211_CHAN_ANY) {
2048                 c = IEEE80211_CHAN_ANYC;
2049         } else {
2050                 struct ieee80211_channel *c2;
2051
2052                 c = findchannel(ic, ireq->i_val, vap->iv_des_mode);
2053                 if (c == NULL) {
2054                         c = findchannel(ic, ireq->i_val,
2055                                 IEEE80211_MODE_AUTO);
2056                         if (c == NULL)
2057                                 return EINVAL;
2058                 }
2059
2060                 /*
2061                  * Fine tune channel selection based on desired mode:
2062                  *   if 11b is requested, find the 11b version of any
2063                  *      11g channel returned,
2064                  *   if static turbo, find the turbo version of any
2065                  *      11a channel return,
2066                  *   if 11na is requested, find the ht version of any
2067                  *      11a channel returned,
2068                  *   if 11ng is requested, find the ht version of any
2069                  *      11g channel returned,
2070                  *   if 11ac is requested, find the 11ac version
2071                  *      of any 11a/11na channel returned,
2072                  *   (TBD) 11acg (2GHz VHT)
2073                  *   otherwise we should be ok with what we've got.
2074                  */
2075                 switch (vap->iv_des_mode) {
2076                 case IEEE80211_MODE_11B:
2077                         if (IEEE80211_IS_CHAN_ANYG(c)) {
2078                                 c2 = findchannel(ic, ireq->i_val,
2079                                         IEEE80211_MODE_11B);
2080                                 /* NB: should not happen, =>'s 11g w/o 11b */
2081                                 if (c2 != NULL)
2082                                         c = c2;
2083                         }
2084                         break;
2085                 case IEEE80211_MODE_TURBO_A:
2086                         if (IEEE80211_IS_CHAN_A(c)) {
2087                                 c2 = findchannel(ic, ireq->i_val,
2088                                         IEEE80211_MODE_TURBO_A);
2089                                 if (c2 != NULL)
2090                                         c = c2;
2091                         }
2092                         break;
2093                 case IEEE80211_MODE_11NA:
2094                         if (IEEE80211_IS_CHAN_A(c)) {
2095                                 c2 = findchannel(ic, ireq->i_val,
2096                                         IEEE80211_MODE_11NA);
2097                                 if (c2 != NULL)
2098                                         c = c2;
2099                         }
2100                         break;
2101                 case IEEE80211_MODE_11NG:
2102                         if (IEEE80211_IS_CHAN_ANYG(c)) {
2103                                 c2 = findchannel(ic, ireq->i_val,
2104                                         IEEE80211_MODE_11NG);
2105                                 if (c2 != NULL)
2106                                         c = c2;
2107                         }
2108                         break;
2109                 case IEEE80211_MODE_VHT_2GHZ:
2110                         printf("%s: TBD\n", __func__);
2111                         break;
2112                 case IEEE80211_MODE_VHT_5GHZ:
2113                         if (IEEE80211_IS_CHAN_A(c)) {
2114                                 c2 = findchannel(ic, ireq->i_val,
2115                                         IEEE80211_MODE_VHT_5GHZ);
2116                                 if (c2 != NULL)
2117                                         c = c2;
2118                         }
2119                         break;
2120                 default:                /* NB: no static turboG */
2121                         break;
2122                 }
2123         }
2124         return setcurchan(vap, c);
2125 }
2126
2127 /*
2128  * New/current api for setting the current channel; a complete
2129  * channel description is provide so there is no ambiguity in
2130  * identifying the channel.
2131  */
2132 static int
2133 ieee80211_ioctl_setcurchan(struct ieee80211vap *vap,
2134         const struct ieee80211req *ireq)
2135 {
2136         struct ieee80211com *ic = vap->iv_ic;
2137         struct ieee80211_channel chan, *c;
2138         int error;
2139
2140         if (ireq->i_len != sizeof(chan))
2141                 return EINVAL;
2142         error = copyin(ireq->i_data, &chan, sizeof(chan));
2143         if (error != 0)
2144                 return error;
2145
2146         /* XXX 0xffff overflows 16-bit signed */
2147         if (chan.ic_freq == 0 || chan.ic_freq == IEEE80211_CHAN_ANY) {
2148                 c = IEEE80211_CHAN_ANYC;
2149         } else {
2150                 c = ieee80211_find_channel(ic, chan.ic_freq, chan.ic_flags);
2151                 if (c == NULL)
2152                         return EINVAL;
2153         }
2154         return setcurchan(vap, c);
2155 }
2156
2157 static int
2158 ieee80211_ioctl_setregdomain(struct ieee80211vap *vap,
2159         const struct ieee80211req *ireq)
2160 {
2161         struct ieee80211_regdomain_req *reg;
2162         int nchans, error;
2163
2164         nchans = 1 + ((ireq->i_len - sizeof(struct ieee80211_regdomain_req)) /
2165             sizeof(struct ieee80211_channel));
2166         if (!(1 <= nchans && nchans <= IEEE80211_CHAN_MAX)) {
2167                 IEEE80211_DPRINTF(vap, IEEE80211_MSG_IOCTL,
2168                     "%s: bad # chans, i_len %d nchans %d\n", __func__,
2169                     ireq->i_len, nchans);
2170                 return EINVAL;
2171         }
2172         reg = (struct ieee80211_regdomain_req *)
2173             IEEE80211_MALLOC(IEEE80211_REGDOMAIN_SIZE(nchans), M_TEMP,
2174               IEEE80211_M_NOWAIT | IEEE80211_M_ZERO);
2175         if (reg == NULL) {
2176                 IEEE80211_DPRINTF(vap, IEEE80211_MSG_IOCTL,
2177                     "%s: no memory, nchans %d\n", __func__, nchans);
2178                 return ENOMEM;
2179         }
2180         error = copyin(ireq->i_data, reg, IEEE80211_REGDOMAIN_SIZE(nchans));
2181         if (error == 0) {
2182                 /* NB: validate inline channel count against storage size */
2183                 if (reg->chaninfo.ic_nchans != nchans) {
2184                         IEEE80211_DPRINTF(vap, IEEE80211_MSG_IOCTL,
2185                             "%s: chan cnt mismatch, %d != %d\n", __func__,
2186                                 reg->chaninfo.ic_nchans, nchans);
2187                         error = EINVAL;
2188                 } else
2189                         error = ieee80211_setregdomain(vap, reg);
2190         }
2191         IEEE80211_FREE(reg, M_TEMP);
2192
2193         return (error == 0 ? ENETRESET : error);
2194 }
2195
2196 static int
2197 ieee80211_ioctl_setroam(struct ieee80211vap *vap,
2198         const struct ieee80211req *ireq)
2199 {
2200         if (ireq->i_len != sizeof(vap->iv_roamparms))
2201                 return EINVAL;
2202         /* XXX validate params */
2203         /* XXX? ENETRESET to push to device? */
2204         return copyin(ireq->i_data, vap->iv_roamparms,
2205             sizeof(vap->iv_roamparms));
2206 }
2207
2208 static int
2209 checkrate(const struct ieee80211_rateset *rs, int rate)
2210 {
2211         int i;
2212
2213         if (rate == IEEE80211_FIXED_RATE_NONE)
2214                 return 1;
2215         for (i = 0; i < rs->rs_nrates; i++)
2216                 if ((rs->rs_rates[i] & IEEE80211_RATE_VAL) == rate)
2217                         return 1;
2218         return 0;
2219 }
2220
2221 static int
2222 checkmcs(int mcs)
2223 {
2224         if (mcs == IEEE80211_FIXED_RATE_NONE)
2225                 return 1;
2226         if ((mcs & IEEE80211_RATE_MCS) == 0)    /* MCS always have 0x80 set */
2227                 return 0;
2228         return (mcs & 0x7f) <= 15;      /* XXX could search ht rate set */
2229 }
2230
2231 static int
2232 ieee80211_ioctl_settxparams(struct ieee80211vap *vap,
2233         const struct ieee80211req *ireq)
2234 {
2235         struct ieee80211com *ic = vap->iv_ic;
2236         struct ieee80211_txparams_req parms;    /* XXX stack use? */
2237         struct ieee80211_txparam *src, *dst;
2238         const struct ieee80211_rateset *rs;
2239         int error, mode, changed, is11n, nmodes;
2240
2241         /* NB: accept short requests for backwards compat */
2242         if (ireq->i_len > sizeof(parms))
2243                 return EINVAL;
2244         error = copyin(ireq->i_data, &parms, ireq->i_len);
2245         if (error != 0)
2246                 return error;
2247         nmodes = ireq->i_len / sizeof(struct ieee80211_txparam);
2248         changed = 0;
2249         /* validate parameters and check if anything changed */
2250         for (mode = IEEE80211_MODE_11A; mode < nmodes; mode++) {
2251                 if (isclr(ic->ic_modecaps, mode))
2252                         continue;
2253                 src = &parms.params[mode];
2254                 dst = &vap->iv_txparms[mode];
2255                 rs = &ic->ic_sup_rates[mode];   /* NB: 11n maps to legacy */
2256                 is11n = (mode == IEEE80211_MODE_11NA ||
2257                          mode == IEEE80211_MODE_11NG);
2258                 if (src->ucastrate != dst->ucastrate) {
2259                         if (!checkrate(rs, src->ucastrate) &&
2260                             (!is11n || !checkmcs(src->ucastrate)))
2261                                 return EINVAL;
2262                         changed++;
2263                 }
2264                 if (src->mcastrate != dst->mcastrate) {
2265                         if (!checkrate(rs, src->mcastrate) &&
2266                             (!is11n || !checkmcs(src->mcastrate)))
2267                                 return EINVAL;
2268                         changed++;
2269                 }
2270                 if (src->mgmtrate != dst->mgmtrate) {
2271                         if (!checkrate(rs, src->mgmtrate) &&
2272                             (!is11n || !checkmcs(src->mgmtrate)))
2273                                 return EINVAL;
2274                         changed++;
2275                 }
2276                 if (src->maxretry != dst->maxretry)     /* NB: no bounds */
2277                         changed++;
2278         }
2279         if (changed) {
2280                 /*
2281                  * Copy new parameters in place and notify the
2282                  * driver so it can push state to the device.
2283                  */
2284                 for (mode = IEEE80211_MODE_11A; mode < nmodes; mode++) {
2285                         if (isset(ic->ic_modecaps, mode))
2286                                 vap->iv_txparms[mode] = parms.params[mode];
2287                 }
2288                 /* XXX could be more intelligent,
2289                    e.g. don't reset if setting not being used */
2290                 return ENETRESET;
2291         }
2292         return 0;
2293 }
2294
2295 /*
2296  * Application Information Element support.
2297  */
2298 static int
2299 setappie(struct ieee80211_appie **aie, const struct ieee80211req *ireq)
2300 {
2301         struct ieee80211_appie *app = *aie;
2302         struct ieee80211_appie *napp;
2303         int error;
2304
2305         if (ireq->i_len == 0) {         /* delete any existing ie */
2306                 if (app != NULL) {
2307                         *aie = NULL;    /* XXX racey */
2308                         IEEE80211_FREE(app, M_80211_NODE_IE);
2309                 }
2310                 return 0;
2311         }
2312         if (!(2 <= ireq->i_len && ireq->i_len <= IEEE80211_MAX_APPIE))
2313                 return EINVAL;
2314         /*
2315          * Allocate a new appie structure and copy in the user data.
2316          * When done swap in the new structure.  Note that we do not
2317          * guard against users holding a ref to the old structure;
2318          * this must be handled outside this code.
2319          *
2320          * XXX bad bad bad
2321          */
2322         napp = (struct ieee80211_appie *) IEEE80211_MALLOC(
2323             sizeof(struct ieee80211_appie) + ireq->i_len, M_80211_NODE_IE,
2324             IEEE80211_M_NOWAIT);
2325         if (napp == NULL)
2326                 return ENOMEM;
2327         /* XXX holding ic lock */
2328         error = copyin(ireq->i_data, napp->ie_data, ireq->i_len);
2329         if (error) {
2330                 IEEE80211_FREE(napp, M_80211_NODE_IE);
2331                 return error;
2332         }
2333         napp->ie_len = ireq->i_len;
2334         *aie = napp;
2335         if (app != NULL)
2336                 IEEE80211_FREE(app, M_80211_NODE_IE);
2337         return 0;
2338 }
2339
2340 static void
2341 setwparsnie(struct ieee80211vap *vap, uint8_t *ie, int space)
2342 {
2343         /* validate data is present as best we can */
2344         if (space == 0 || 2+ie[1] > space)
2345                 return;
2346         if (ie[0] == IEEE80211_ELEMID_VENDOR)
2347                 vap->iv_wpa_ie = ie;
2348         else if (ie[0] == IEEE80211_ELEMID_RSN)
2349                 vap->iv_rsn_ie = ie;
2350 }
2351
2352 static int
2353 ieee80211_ioctl_setappie_locked(struct ieee80211vap *vap,
2354         const struct ieee80211req *ireq, int fc0)
2355 {
2356         int error;
2357
2358         IEEE80211_LOCK_ASSERT(vap->iv_ic);
2359
2360         switch (fc0 & IEEE80211_FC0_SUBTYPE_MASK) {
2361         case IEEE80211_FC0_SUBTYPE_BEACON:
2362                 if (vap->iv_opmode != IEEE80211_M_HOSTAP &&
2363                     vap->iv_opmode != IEEE80211_M_IBSS) {
2364                         error = EINVAL;
2365                         break;
2366                 }
2367                 error = setappie(&vap->iv_appie_beacon, ireq);
2368                 if (error == 0)
2369                         ieee80211_beacon_notify(vap, IEEE80211_BEACON_APPIE);
2370                 break;
2371         case IEEE80211_FC0_SUBTYPE_PROBE_RESP:
2372                 error = setappie(&vap->iv_appie_proberesp, ireq);
2373                 break;
2374         case IEEE80211_FC0_SUBTYPE_ASSOC_RESP:
2375                 if (vap->iv_opmode == IEEE80211_M_HOSTAP)
2376                         error = setappie(&vap->iv_appie_assocresp, ireq);
2377                 else
2378                         error = EINVAL;
2379                 break;
2380         case IEEE80211_FC0_SUBTYPE_PROBE_REQ:
2381                 error = setappie(&vap->iv_appie_probereq, ireq);
2382                 break;
2383         case IEEE80211_FC0_SUBTYPE_ASSOC_REQ:
2384                 if (vap->iv_opmode == IEEE80211_M_STA)
2385                         error = setappie(&vap->iv_appie_assocreq, ireq);
2386                 else
2387                         error = EINVAL;
2388                 break;
2389         case (IEEE80211_APPIE_WPA & IEEE80211_FC0_SUBTYPE_MASK):
2390                 error = setappie(&vap->iv_appie_wpa, ireq);
2391                 if (error == 0) {
2392                         /*
2393                          * Must split single blob of data into separate
2394                          * WPA and RSN ie's because they go in different
2395                          * locations in the mgt frames.
2396                          * XXX use IEEE80211_IOC_WPA2 so user code does split
2397                          */
2398                         vap->iv_wpa_ie = NULL;
2399                         vap->iv_rsn_ie = NULL;
2400                         if (vap->iv_appie_wpa != NULL) {
2401                                 struct ieee80211_appie *appie =
2402                                     vap->iv_appie_wpa;
2403                                 uint8_t *data = appie->ie_data;
2404
2405                                 /* XXX ie length validate is painful, cheat */
2406                                 setwparsnie(vap, data, appie->ie_len);
2407                                 setwparsnie(vap, data + 2 + data[1],
2408                                     appie->ie_len - (2 + data[1]));
2409                         }
2410                         if (vap->iv_opmode == IEEE80211_M_HOSTAP ||
2411                             vap->iv_opmode == IEEE80211_M_IBSS) {
2412                                 /*
2413                                  * Must rebuild beacon frame as the update
2414                                  * mechanism doesn't handle WPA/RSN ie's.
2415                                  * Could extend it but it doesn't normally
2416                                  * change; this is just to deal with hostapd
2417                                  * plumbing the ie after the interface is up.
2418                                  */
2419                                 error = ENETRESET;
2420                         }
2421                 }
2422                 break;
2423         default:
2424                 error = EINVAL;
2425                 break;
2426         }
2427         return error;
2428 }
2429
2430 static int
2431 ieee80211_ioctl_setappie(struct ieee80211vap *vap,
2432         const struct ieee80211req *ireq)
2433 {
2434         struct ieee80211com *ic = vap->iv_ic;
2435         int error;
2436         uint8_t fc0;
2437
2438         fc0 = ireq->i_val & 0xff;
2439         if ((fc0 & IEEE80211_FC0_TYPE_MASK) != IEEE80211_FC0_TYPE_MGT)
2440                 return EINVAL;
2441         /* NB: could check iv_opmode and reject but hardly worth the effort */
2442         IEEE80211_LOCK(ic);
2443         error = ieee80211_ioctl_setappie_locked(vap, ireq, fc0);
2444         IEEE80211_UNLOCK(ic);
2445         return error;
2446 }
2447
2448 static int
2449 ieee80211_ioctl_chanswitch(struct ieee80211vap *vap, struct ieee80211req *ireq)
2450 {
2451         struct ieee80211com *ic = vap->iv_ic;
2452         struct ieee80211_chanswitch_req csr;
2453         struct ieee80211_channel *c;
2454         int error;
2455
2456         if (ireq->i_len != sizeof(csr))
2457                 return EINVAL;
2458         error = copyin(ireq->i_data, &csr, sizeof(csr));
2459         if (error != 0)
2460                 return error;
2461         /* XXX adhoc mode not supported */
2462         if (vap->iv_opmode != IEEE80211_M_HOSTAP ||
2463             (vap->iv_flags & IEEE80211_F_DOTH) == 0)
2464                 return EOPNOTSUPP;
2465         c = ieee80211_find_channel(ic,
2466             csr.csa_chan.ic_freq, csr.csa_chan.ic_flags);
2467         if (c == NULL)
2468                 return ENOENT;
2469         IEEE80211_LOCK(ic);
2470         if ((ic->ic_flags & IEEE80211_F_CSAPENDING) == 0)
2471                 ieee80211_csa_startswitch(ic, c, csr.csa_mode, csr.csa_count);
2472         else if (csr.csa_count == 0)
2473                 ieee80211_csa_cancelswitch(ic);
2474         else
2475                 error = EBUSY;
2476         IEEE80211_UNLOCK(ic);
2477         return error;
2478 }
2479
2480 static int
2481 ieee80211_scanreq(struct ieee80211vap *vap, struct ieee80211_scan_req *sr)
2482 {
2483 #define IEEE80211_IOC_SCAN_FLAGS \
2484         (IEEE80211_IOC_SCAN_NOPICK | IEEE80211_IOC_SCAN_ACTIVE | \
2485          IEEE80211_IOC_SCAN_PICK1ST | IEEE80211_IOC_SCAN_BGSCAN | \
2486          IEEE80211_IOC_SCAN_ONCE | IEEE80211_IOC_SCAN_NOBCAST | \
2487          IEEE80211_IOC_SCAN_NOJOIN | IEEE80211_IOC_SCAN_FLUSH | \
2488          IEEE80211_IOC_SCAN_CHECK)
2489         struct ieee80211com *ic = vap->iv_ic;
2490         int error, i;
2491
2492         /* convert duration */
2493         if (sr->sr_duration == IEEE80211_IOC_SCAN_FOREVER)
2494                 sr->sr_duration = IEEE80211_SCAN_FOREVER;
2495         else {
2496                 if (sr->sr_duration < IEEE80211_IOC_SCAN_DURATION_MIN ||
2497                     sr->sr_duration > IEEE80211_IOC_SCAN_DURATION_MAX)
2498                         return EINVAL;
2499                 sr->sr_duration = msecs_to_ticks(sr->sr_duration);
2500                 if (sr->sr_duration < 1)
2501                         sr->sr_duration = 1;
2502         }
2503         /* convert min/max channel dwell */
2504         if (sr->sr_mindwell != 0) {
2505                 sr->sr_mindwell = msecs_to_ticks(sr->sr_mindwell);
2506                 if (sr->sr_mindwell < 1)
2507                         sr->sr_mindwell = 1;
2508         }
2509         if (sr->sr_maxdwell != 0) {
2510                 sr->sr_maxdwell = msecs_to_ticks(sr->sr_maxdwell);
2511                 if (sr->sr_maxdwell < 1)
2512                         sr->sr_maxdwell = 1;
2513         }
2514         /* NB: silently reduce ssid count to what is supported */
2515         if (sr->sr_nssid > IEEE80211_SCAN_MAX_SSID)
2516                 sr->sr_nssid = IEEE80211_SCAN_MAX_SSID;
2517         for (i = 0; i < sr->sr_nssid; i++)
2518                 if (sr->sr_ssid[i].len > IEEE80211_NWID_LEN)
2519                         return EINVAL;
2520         /* cleanse flags just in case, could reject if invalid flags */
2521         sr->sr_flags &= IEEE80211_IOC_SCAN_FLAGS;
2522         /*
2523          * Add an implicit NOPICK if the vap is not marked UP.  This
2524          * allows applications to scan without joining a bss (or picking
2525          * a channel and setting up a bss) and without forcing manual
2526          * roaming mode--you just need to mark the parent device UP.
2527          */
2528         if ((vap->iv_ifp->if_flags & IFF_UP) == 0)
2529                 sr->sr_flags |= IEEE80211_IOC_SCAN_NOPICK;
2530
2531         IEEE80211_DPRINTF(vap, IEEE80211_MSG_SCAN,
2532             "%s: flags 0x%x%s duration 0x%x mindwell %u maxdwell %u nssid %d\n",
2533             __func__, sr->sr_flags,
2534             (vap->iv_ifp->if_flags & IFF_UP) == 0 ? " (!IFF_UP)" : "",
2535             sr->sr_duration, sr->sr_mindwell, sr->sr_maxdwell, sr->sr_nssid);
2536         /*
2537          * If we are in INIT state then the driver has never had a chance
2538          * to setup hardware state to do a scan; we must use the state
2539          * machine to get us up to the SCAN state but once we reach SCAN
2540          * state we then want to use the supplied params.  Stash the
2541          * parameters in the vap and mark IEEE80211_FEXT_SCANREQ; the
2542          * state machines will recognize this and use the stashed params
2543          * to issue the scan request.
2544          *
2545          * Otherwise just invoke the scan machinery directly.
2546          */
2547         IEEE80211_LOCK(ic);
2548         if (ic->ic_nrunning == 0) {
2549                 IEEE80211_UNLOCK(ic);
2550                 return ENXIO;
2551         }
2552
2553         if (vap->iv_state == IEEE80211_S_INIT) {
2554                 /* NB: clobbers previous settings */
2555                 vap->iv_scanreq_flags = sr->sr_flags;
2556                 vap->iv_scanreq_duration = sr->sr_duration;
2557                 vap->iv_scanreq_nssid = sr->sr_nssid;
2558                 for (i = 0; i < sr->sr_nssid; i++) {
2559                         vap->iv_scanreq_ssid[i].len = sr->sr_ssid[i].len;
2560                         memcpy(vap->iv_scanreq_ssid[i].ssid,
2561                             sr->sr_ssid[i].ssid, sr->sr_ssid[i].len);
2562                 }
2563                 vap->iv_flags_ext |= IEEE80211_FEXT_SCANREQ;
2564                 IEEE80211_UNLOCK(ic);
2565                 ieee80211_new_state(vap, IEEE80211_S_SCAN, 0);
2566         } else {
2567                 vap->iv_flags_ext &= ~IEEE80211_FEXT_SCANREQ;
2568                 IEEE80211_UNLOCK(ic);
2569                 if (sr->sr_flags & IEEE80211_IOC_SCAN_CHECK) {
2570                         error = ieee80211_check_scan(vap, sr->sr_flags,
2571                             sr->sr_duration, sr->sr_mindwell, sr->sr_maxdwell,
2572                             sr->sr_nssid,
2573                             /* NB: cheat, we assume structures are compatible */
2574                             (const struct ieee80211_scan_ssid *) &sr->sr_ssid[0]);
2575                 } else {
2576                         error = ieee80211_start_scan(vap, sr->sr_flags,
2577                             sr->sr_duration, sr->sr_mindwell, sr->sr_maxdwell,
2578                             sr->sr_nssid,
2579                             /* NB: cheat, we assume structures are compatible */
2580                             (const struct ieee80211_scan_ssid *) &sr->sr_ssid[0]);
2581                 }
2582                 if (error == 0)
2583                         return EINPROGRESS;
2584         }
2585         return 0;
2586 #undef IEEE80211_IOC_SCAN_FLAGS
2587 }
2588
2589 static int
2590 ieee80211_ioctl_scanreq(struct ieee80211vap *vap, struct ieee80211req *ireq)
2591 {
2592         struct ieee80211_scan_req *sr;
2593         int error;
2594
2595         if (ireq->i_len != sizeof(*sr))
2596                 return EINVAL;
2597         sr = IEEE80211_MALLOC(sizeof(*sr), M_TEMP,
2598              IEEE80211_M_NOWAIT | IEEE80211_M_ZERO);
2599         if (sr == NULL)
2600                 return ENOMEM;
2601         error = copyin(ireq->i_data, sr, sizeof(*sr));
2602         if (error != 0)
2603                 goto bad;
2604         error = ieee80211_scanreq(vap, sr);
2605 bad:
2606         IEEE80211_FREE(sr, M_TEMP);
2607         return error;
2608 }
2609
2610 static int
2611 ieee80211_ioctl_setstavlan(struct ieee80211vap *vap, struct ieee80211req *ireq)
2612 {
2613         struct ieee80211_node *ni;
2614         struct ieee80211req_sta_vlan vlan;
2615         int error;
2616
2617         if (ireq->i_len != sizeof(vlan))
2618                 return EINVAL;
2619         error = copyin(ireq->i_data, &vlan, sizeof(vlan));
2620         if (error != 0)
2621                 return error;
2622         if (!IEEE80211_ADDR_EQ(vlan.sv_macaddr, zerobssid)) {
2623                 ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap,
2624                     vlan.sv_macaddr);
2625                 if (ni == NULL)
2626                         return ENOENT;
2627         } else
2628                 ni = ieee80211_ref_node(vap->iv_bss);
2629         ni->ni_vlan = vlan.sv_vlan;
2630         ieee80211_free_node(ni);
2631         return error;
2632 }
2633
2634 static int
2635 isvap11g(const struct ieee80211vap *vap)
2636 {
2637         const struct ieee80211_node *bss = vap->iv_bss;
2638         return bss->ni_chan != IEEE80211_CHAN_ANYC &&
2639             IEEE80211_IS_CHAN_ANYG(bss->ni_chan);
2640 }
2641
2642 static int
2643 isvapht(const struct ieee80211vap *vap)
2644 {
2645         const struct ieee80211_node *bss = vap->iv_bss;
2646         return bss->ni_chan != IEEE80211_CHAN_ANYC &&
2647             IEEE80211_IS_CHAN_HT(bss->ni_chan);
2648 }
2649
2650 /*
2651  * Dummy ioctl set handler so the linker set is defined.
2652  */
2653 static int
2654 dummy_ioctl_set(struct ieee80211vap *vap, struct ieee80211req *ireq)
2655 {
2656         return ENOSYS;
2657 }
2658 IEEE80211_IOCTL_SET(dummy, dummy_ioctl_set);
2659
2660 static int
2661 ieee80211_ioctl_setdefault(struct ieee80211vap *vap, struct ieee80211req *ireq)
2662 {
2663         ieee80211_ioctl_setfunc * const *set;
2664         int error;
2665
2666         SET_FOREACH(set, ieee80211_ioctl_setset) {
2667                 error = (*set)(vap, ireq);
2668                 if (error != ENOSYS)
2669                         return error;
2670         }
2671         return EINVAL;
2672 }
2673
2674 static int
2675 ieee80211_ioctl_set80211(struct ieee80211vap *vap, u_long cmd, struct ieee80211req *ireq)
2676 {
2677         struct ieee80211com *ic = vap->iv_ic;
2678         int error;
2679         const struct ieee80211_authenticator *auth;
2680         uint8_t tmpkey[IEEE80211_KEYBUF_SIZE];
2681         char tmpssid[IEEE80211_NWID_LEN];
2682         uint8_t tmpbssid[IEEE80211_ADDR_LEN];
2683         struct ieee80211_key *k;
2684         u_int kid;
2685         uint32_t flags;
2686
2687         error = 0;
2688         switch (ireq->i_type) {
2689         case IEEE80211_IOC_SSID:
2690                 if (ireq->i_val != 0 ||
2691                     ireq->i_len > IEEE80211_NWID_LEN)
2692                         return EINVAL;
2693                 error = copyin(ireq->i_data, tmpssid, ireq->i_len);
2694                 if (error)
2695                         break;
2696                 memset(vap->iv_des_ssid[0].ssid, 0, IEEE80211_NWID_LEN);
2697                 vap->iv_des_ssid[0].len = ireq->i_len;
2698                 memcpy(vap->iv_des_ssid[0].ssid, tmpssid, ireq->i_len);
2699                 vap->iv_des_nssid = (ireq->i_len > 0);
2700                 error = ENETRESET;
2701                 break;
2702         case IEEE80211_IOC_WEP:
2703                 switch (ireq->i_val) {
2704                 case IEEE80211_WEP_OFF:
2705                         vap->iv_flags &= ~IEEE80211_F_PRIVACY;
2706                         vap->iv_flags &= ~IEEE80211_F_DROPUNENC;
2707                         break;
2708                 case IEEE80211_WEP_ON:
2709                         vap->iv_flags |= IEEE80211_F_PRIVACY;
2710                         vap->iv_flags |= IEEE80211_F_DROPUNENC;
2711                         break;
2712                 case IEEE80211_WEP_MIXED:
2713                         vap->iv_flags |= IEEE80211_F_PRIVACY;
2714                         vap->iv_flags &= ~IEEE80211_F_DROPUNENC;
2715                         break;
2716                 }
2717                 error = ENETRESET;
2718                 break;
2719         case IEEE80211_IOC_WEPKEY:
2720                 kid = (u_int) ireq->i_val;
2721                 if (kid >= IEEE80211_WEP_NKID)
2722                         return EINVAL;
2723                 k = &vap->iv_nw_keys[kid];
2724                 if (ireq->i_len == 0) {
2725                         /* zero-len =>'s delete any existing key */
2726                         (void) ieee80211_crypto_delkey(vap, k);
2727                         break;
2728                 }
2729                 if (ireq->i_len > sizeof(tmpkey))
2730                         return EINVAL;
2731                 memset(tmpkey, 0, sizeof(tmpkey));
2732                 error = copyin(ireq->i_data, tmpkey, ireq->i_len);
2733                 if (error)
2734                         break;
2735                 ieee80211_key_update_begin(vap);
2736                 k->wk_keyix = kid;      /* NB: force fixed key id */
2737                 if (ieee80211_crypto_newkey(vap, IEEE80211_CIPHER_WEP,
2738                     IEEE80211_KEY_XMIT | IEEE80211_KEY_RECV, k)) {
2739                         k->wk_keylen = ireq->i_len;
2740                         memcpy(k->wk_key, tmpkey, sizeof(tmpkey));
2741                         IEEE80211_ADDR_COPY(k->wk_macaddr, vap->iv_myaddr);
2742                         if  (!ieee80211_crypto_setkey(vap, k))
2743                                 error = EINVAL;
2744                 } else
2745                         error = EINVAL;
2746                 ieee80211_key_update_end(vap);
2747                 break;
2748         case IEEE80211_IOC_WEPTXKEY:
2749                 kid = (u_int) ireq->i_val;
2750                 if (kid >= IEEE80211_WEP_NKID &&
2751                     (uint16_t) kid != IEEE80211_KEYIX_NONE)
2752                         return EINVAL;
2753                 /*
2754                  * Firmware devices may need to be told about an explicit
2755                  * key index here, versus just inferring it from the
2756                  * key set / change.  Since we may also need to pause
2757                  * things like transmit before the key is updated,
2758                  * give the driver a chance to flush things by tying
2759                  * into key update begin/end.
2760                  */
2761                 ieee80211_key_update_begin(vap);
2762                 ieee80211_crypto_set_deftxkey(vap, kid);
2763                 ieee80211_key_update_end(vap);
2764                 break;
2765         case IEEE80211_IOC_AUTHMODE:
2766                 switch (ireq->i_val) {
2767                 case IEEE80211_AUTH_WPA:
2768                 case IEEE80211_AUTH_8021X:      /* 802.1x */
2769                 case IEEE80211_AUTH_OPEN:       /* open */
2770                 case IEEE80211_AUTH_SHARED:     /* shared-key */
2771                 case IEEE80211_AUTH_AUTO:       /* auto */
2772                         auth = ieee80211_authenticator_get(ireq->i_val);
2773                         if (auth == NULL)
2774                                 return EINVAL;
2775                         break;
2776                 default:
2777                         return EINVAL;
2778                 }
2779                 switch (ireq->i_val) {
2780                 case IEEE80211_AUTH_WPA:        /* WPA w/ 802.1x */
2781                         vap->iv_flags |= IEEE80211_F_PRIVACY;
2782                         ireq->i_val = IEEE80211_AUTH_8021X;
2783                         break;
2784                 case IEEE80211_AUTH_OPEN:       /* open */
2785                         vap->iv_flags &= ~(IEEE80211_F_WPA|IEEE80211_F_PRIVACY);
2786                         break;
2787                 case IEEE80211_AUTH_SHARED:     /* shared-key */
2788                 case IEEE80211_AUTH_8021X:      /* 802.1x */
2789                         vap->iv_flags &= ~IEEE80211_F_WPA;
2790                         /* both require a key so mark the PRIVACY capability */
2791                         vap->iv_flags |= IEEE80211_F_PRIVACY;
2792                         break;
2793                 case IEEE80211_AUTH_AUTO:       /* auto */
2794                         vap->iv_flags &= ~IEEE80211_F_WPA;
2795                         /* XXX PRIVACY handling? */
2796                         /* XXX what's the right way to do this? */
2797                         break;
2798                 }
2799                 /* NB: authenticator attach/detach happens on state change */
2800                 vap->iv_bss->ni_authmode = ireq->i_val;
2801                 /* XXX mixed/mode/usage? */
2802                 vap->iv_auth = auth;
2803                 error = ENETRESET;
2804                 break;
2805         case IEEE80211_IOC_CHANNEL:
2806                 error = ieee80211_ioctl_setchannel(vap, ireq);
2807                 break;
2808         case IEEE80211_IOC_POWERSAVE:
2809                 switch (ireq->i_val) {
2810                 case IEEE80211_POWERSAVE_OFF:
2811                         if (vap->iv_flags & IEEE80211_F_PMGTON) {
2812                                 ieee80211_syncflag(vap, -IEEE80211_F_PMGTON);
2813                                 error = ERESTART;
2814                         }
2815                         break;
2816                 case IEEE80211_POWERSAVE_ON:
2817                         if ((vap->iv_caps & IEEE80211_C_PMGT) == 0)
2818                                 error = EOPNOTSUPP;
2819                         else if ((vap->iv_flags & IEEE80211_F_PMGTON) == 0) {
2820                                 ieee80211_syncflag(vap, IEEE80211_F_PMGTON);
2821                                 error = ERESTART;
2822                         }
2823                         break;
2824                 default:
2825                         error = EINVAL;
2826                         break;
2827                 }
2828                 break;
2829         case IEEE80211_IOC_POWERSAVESLEEP:
2830                 if (ireq->i_val < 0)
2831                         return EINVAL;
2832                 ic->ic_lintval = ireq->i_val;
2833                 error = ERESTART;
2834                 break;
2835         case IEEE80211_IOC_RTSTHRESHOLD:
2836                 if (!(IEEE80211_RTS_MIN <= ireq->i_val &&
2837                       ireq->i_val <= IEEE80211_RTS_MAX))
2838                         return EINVAL;
2839                 vap->iv_rtsthreshold = ireq->i_val;
2840                 error = ERESTART;
2841                 break;
2842         case IEEE80211_IOC_PROTMODE:
2843                 if (ireq->i_val > IEEE80211_PROT_RTSCTS)
2844                         return EINVAL;
2845                 ic->ic_protmode = (enum ieee80211_protmode)ireq->i_val;
2846                 /* NB: if not operating in 11g this can wait */
2847                 if (ic->ic_bsschan != IEEE80211_CHAN_ANYC &&
2848                     IEEE80211_IS_CHAN_ANYG(ic->ic_bsschan))
2849                         error = ERESTART;
2850                 break;
2851         case IEEE80211_IOC_TXPOWER:
2852                 if ((ic->ic_caps & IEEE80211_C_TXPMGT) == 0)
2853                         return EOPNOTSUPP;
2854                 if (!(IEEE80211_TXPOWER_MIN <= ireq->i_val &&
2855                       ireq->i_val <= IEEE80211_TXPOWER_MAX))
2856                         return EINVAL;
2857                 ic->ic_txpowlimit = ireq->i_val;
2858                 error = ERESTART;
2859                 break;
2860         case IEEE80211_IOC_ROAMING:
2861                 if (!(IEEE80211_ROAMING_DEVICE <= ireq->i_val &&
2862                     ireq->i_val <= IEEE80211_ROAMING_MANUAL))
2863                         return EINVAL;
2864                 vap->iv_roaming = (enum ieee80211_roamingmode)ireq->i_val;
2865                 /* XXXX reset? */
2866                 break;
2867         case IEEE80211_IOC_PRIVACY:
2868                 if (ireq->i_val) {
2869                         /* XXX check for key state? */
2870                         vap->iv_flags |= IEEE80211_F_PRIVACY;
2871                 } else
2872                         vap->iv_flags &= ~IEEE80211_F_PRIVACY;
2873                 /* XXX ERESTART? */
2874                 break;
2875         case IEEE80211_IOC_DROPUNENCRYPTED:
2876                 if (ireq->i_val)
2877                         vap->iv_flags |= IEEE80211_F_DROPUNENC;
2878                 else
2879                         vap->iv_flags &= ~IEEE80211_F_DROPUNENC;
2880                 /* XXX ERESTART? */
2881                 break;
2882         case IEEE80211_IOC_WPAKEY:
2883                 error = ieee80211_ioctl_setkey(vap, ireq);
2884                 break;
2885         case IEEE80211_IOC_DELKEY:
2886                 error = ieee80211_ioctl_delkey(vap, ireq);
2887                 break;
2888         case IEEE80211_IOC_MLME:
2889                 error = ieee80211_ioctl_setmlme(vap, ireq);
2890                 break;
2891         case IEEE80211_IOC_COUNTERMEASURES:
2892                 if (ireq->i_val) {
2893                         if ((vap->iv_flags & IEEE80211_F_WPA) == 0)
2894                                 return EOPNOTSUPP;
2895                         vap->iv_flags |= IEEE80211_F_COUNTERM;
2896                 } else
2897                         vap->iv_flags &= ~IEEE80211_F_COUNTERM;
2898                 /* XXX ERESTART? */
2899                 break;
2900         case IEEE80211_IOC_WPA:
2901                 if (ireq->i_val > 3)
2902                         return EINVAL;
2903                 /* XXX verify ciphers available */
2904                 flags = vap->iv_flags & ~IEEE80211_F_WPA;
2905                 switch (ireq->i_val) {
2906                 case 0:
2907                         /* wpa_supplicant calls this to clear the WPA config */
2908                         break;
2909                 case 1:
2910                         if (!(vap->iv_caps & IEEE80211_C_WPA1))
2911                                 return EOPNOTSUPP;
2912                         flags |= IEEE80211_F_WPA1;
2913                         break;
2914                 case 2:
2915                         if (!(vap->iv_caps & IEEE80211_C_WPA2))
2916                                 return EOPNOTSUPP;
2917                         flags |= IEEE80211_F_WPA2;
2918                         break;
2919                 case 3:
2920                         if ((vap->iv_caps & IEEE80211_C_WPA) != IEEE80211_C_WPA)
2921                                 return EOPNOTSUPP;
2922                         flags |= IEEE80211_F_WPA1 | IEEE80211_F_WPA2;
2923                         break;
2924                 default:        /*  Can't set any -> error */
2925                         return EOPNOTSUPP;
2926                 }
2927                 vap->iv_flags = flags;
2928                 error = ERESTART;       /* NB: can change beacon frame */
2929                 break;
2930         case IEEE80211_IOC_WME:
2931                 if (ireq->i_val) {
2932                         if ((vap->iv_caps & IEEE80211_C_WME) == 0)
2933                                 return EOPNOTSUPP;
2934                         ieee80211_syncflag(vap, IEEE80211_F_WME);
2935                 } else
2936                         ieee80211_syncflag(vap, -IEEE80211_F_WME);
2937                 error = ERESTART;       /* NB: can change beacon frame */
2938                 break;
2939         case IEEE80211_IOC_HIDESSID:
2940                 if (ireq->i_val)
2941                         vap->iv_flags |= IEEE80211_F_HIDESSID;
2942                 else
2943                         vap->iv_flags &= ~IEEE80211_F_HIDESSID;
2944                 error = ERESTART;               /* XXX ENETRESET? */
2945                 break;
2946         case IEEE80211_IOC_APBRIDGE:
2947                 if (ireq->i_val == 0)
2948                         vap->iv_flags |= IEEE80211_F_NOBRIDGE;
2949                 else
2950                         vap->iv_flags &= ~IEEE80211_F_NOBRIDGE;
2951                 break;
2952         case IEEE80211_IOC_BSSID:
2953                 if (ireq->i_len != sizeof(tmpbssid))
2954                         return EINVAL;
2955                 error = copyin(ireq->i_data, tmpbssid, ireq->i_len);
2956                 if (error)
2957                         break;
2958                 IEEE80211_ADDR_COPY(vap->iv_des_bssid, tmpbssid);
2959                 if (IEEE80211_ADDR_EQ(vap->iv_des_bssid, zerobssid))
2960                         vap->iv_flags &= ~IEEE80211_F_DESBSSID;
2961                 else
2962                         vap->iv_flags |= IEEE80211_F_DESBSSID;
2963                 error = ENETRESET;
2964                 break;
2965         case IEEE80211_IOC_CHANLIST:
2966                 error = ieee80211_ioctl_setchanlist(vap, ireq);
2967                 break;
2968 #define OLD_IEEE80211_IOC_SCAN_REQ      23
2969 #ifdef OLD_IEEE80211_IOC_SCAN_REQ
2970         case OLD_IEEE80211_IOC_SCAN_REQ:
2971                 IEEE80211_DPRINTF(vap, IEEE80211_MSG_SCAN,
2972                         "%s: active scan request\n", __func__);
2973                 /*
2974                  * If we are in INIT state then the driver has never
2975                  * had a chance to setup hardware state to do a scan;
2976                  * use the state machine to get us up the SCAN state.
2977                  * Otherwise just invoke the scan machinery to start
2978                  * a one-time scan.
2979                  */
2980                 if (vap->iv_state == IEEE80211_S_INIT)
2981                         ieee80211_new_state(vap, IEEE80211_S_SCAN, 0);
2982                 else
2983                         (void) ieee80211_start_scan(vap,
2984                                 IEEE80211_SCAN_ACTIVE |
2985                                 IEEE80211_SCAN_NOPICK |
2986                                 IEEE80211_SCAN_ONCE,
2987                                 IEEE80211_SCAN_FOREVER, 0, 0,
2988                                 /* XXX use ioctl params */
2989                                 vap->iv_des_nssid, vap->iv_des_ssid);
2990                 break;
2991 #endif /* OLD_IEEE80211_IOC_SCAN_REQ */
2992         case IEEE80211_IOC_SCAN_REQ:
2993                 error = ieee80211_ioctl_scanreq(vap, ireq);
2994                 break;
2995         case IEEE80211_IOC_SCAN_CANCEL:
2996                 IEEE80211_DPRINTF(vap, IEEE80211_MSG_SCAN,
2997                     "%s: cancel scan\n", __func__);
2998                 ieee80211_cancel_scan(vap);
2999                 break;
3000         case IEEE80211_IOC_HTCONF:
3001                 if (ireq->i_val & 1)
3002                         ieee80211_syncflag_ht(vap, IEEE80211_FHT_HT);
3003                 else
3004                         ieee80211_syncflag_ht(vap, -IEEE80211_FHT_HT);
3005                 if (ireq->i_val & 2)
3006                         ieee80211_syncflag_ht(vap, IEEE80211_FHT_USEHT40);
3007                 else
3008                         ieee80211_syncflag_ht(vap, -IEEE80211_FHT_USEHT40);
3009                 error = ENETRESET;
3010                 break;
3011         case IEEE80211_IOC_ADDMAC:
3012         case IEEE80211_IOC_DELMAC:
3013                 error = ieee80211_ioctl_macmac(vap, ireq);
3014                 break;
3015         case IEEE80211_IOC_MACCMD:
3016                 error = ieee80211_ioctl_setmaccmd(vap, ireq);
3017                 break;
3018         case IEEE80211_IOC_STA_STATS:
3019                 error = ieee80211_ioctl_setstastats(vap, ireq);
3020                 break;
3021         case IEEE80211_IOC_STA_TXPOW:
3022                 error = ieee80211_ioctl_setstatxpow(vap, ireq);
3023                 break;
3024         case IEEE80211_IOC_WME_CWMIN:           /* WME: CWmin */
3025         case IEEE80211_IOC_WME_CWMAX:           /* WME: CWmax */
3026         case IEEE80211_IOC_WME_AIFS:            /* WME: AIFS */
3027         case IEEE80211_IOC_WME_TXOPLIMIT:       /* WME: txops limit */
3028         case IEEE80211_IOC_WME_ACM:             /* WME: ACM (bss only) */
3029         case IEEE80211_IOC_WME_ACKPOLICY:       /* WME: ACK policy (!bss only) */
3030                 error = ieee80211_ioctl_setwmeparam(vap, ireq);
3031                 break;
3032         case IEEE80211_IOC_DTIM_PERIOD:
3033                 if (vap->iv_opmode != IEEE80211_M_HOSTAP &&
3034                     vap->iv_opmode != IEEE80211_M_MBSS &&
3035                     vap->iv_opmode != IEEE80211_M_IBSS)
3036                         return EINVAL;
3037                 if (IEEE80211_DTIM_MIN <= ireq->i_val &&
3038                     ireq->i_val <= IEEE80211_DTIM_MAX) {
3039                         vap->iv_dtim_period = ireq->i_val;
3040                         error = ENETRESET;              /* requires restart */
3041                 } else
3042                         error = EINVAL;
3043                 break;
3044         case IEEE80211_IOC_BEACON_INTERVAL:
3045                 if (vap->iv_opmode != IEEE80211_M_HOSTAP &&
3046                     vap->iv_opmode != IEEE80211_M_MBSS &&
3047                     vap->iv_opmode != IEEE80211_M_IBSS)
3048                         return EINVAL;
3049                 if (IEEE80211_BINTVAL_MIN <= ireq->i_val &&
3050                     ireq->i_val <= IEEE80211_BINTVAL_MAX) {
3051                         ic->ic_bintval = ireq->i_val;
3052                         error = ENETRESET;              /* requires restart */
3053                 } else
3054                         error = EINVAL;
3055                 break;
3056         case IEEE80211_IOC_PUREG:
3057                 if (ireq->i_val)
3058                         vap->iv_flags |= IEEE80211_F_PUREG;
3059                 else
3060                         vap->iv_flags &= ~IEEE80211_F_PUREG;
3061                 /* NB: reset only if we're operating on an 11g channel */
3062                 if (isvap11g(vap))
3063                         error = ENETRESET;
3064                 break;
3065         case IEEE80211_IOC_QUIET:
3066                 vap->iv_quiet= ireq->i_val;
3067                 break;
3068         case IEEE80211_IOC_QUIET_COUNT:
3069                 vap->iv_quiet_count=ireq->i_val;
3070                 break;
3071         case IEEE80211_IOC_QUIET_PERIOD:
3072                 vap->iv_quiet_period=ireq->i_val;
3073                 break;
3074         case IEEE80211_IOC_QUIET_OFFSET:
3075                 vap->iv_quiet_offset=ireq->i_val;
3076                 break;
3077         case IEEE80211_IOC_QUIET_DUR:
3078                 if(ireq->i_val < vap->iv_bss->ni_intval)
3079                         vap->iv_quiet_duration = ireq->i_val;
3080                 else
3081                         error = EINVAL;
3082                 break;
3083         case IEEE80211_IOC_BGSCAN:
3084                 if (ireq->i_val) {
3085                         if ((vap->iv_caps & IEEE80211_C_BGSCAN) == 0)
3086                                 return EOPNOTSUPP;
3087                         vap->iv_flags |= IEEE80211_F_BGSCAN;
3088                 } else
3089                         vap->iv_flags &= ~IEEE80211_F_BGSCAN;
3090                 break;
3091         case IEEE80211_IOC_BGSCAN_IDLE:
3092                 if (ireq->i_val >= IEEE80211_BGSCAN_IDLE_MIN)
3093                         vap->iv_bgscanidle = ireq->i_val*hz/1000;
3094                 else
3095                         error = EINVAL;
3096                 break;
3097         case IEEE80211_IOC_BGSCAN_INTERVAL:
3098                 if (ireq->i_val >= IEEE80211_BGSCAN_INTVAL_MIN)
3099                         vap->iv_bgscanintvl = ireq->i_val*hz;
3100                 else
3101                         error = EINVAL;
3102                 break;
3103         case IEEE80211_IOC_SCANVALID:
3104                 if (ireq->i_val >= IEEE80211_SCAN_VALID_MIN)
3105                         vap->iv_scanvalid = ireq->i_val*hz;
3106                 else
3107                         error = EINVAL;
3108                 break;
3109         case IEEE80211_IOC_FRAGTHRESHOLD:
3110                 if ((vap->iv_caps & IEEE80211_C_TXFRAG) == 0 &&
3111                     ireq->i_val != IEEE80211_FRAG_MAX)
3112                         return EOPNOTSUPP;
3113                 if (!(IEEE80211_FRAG_MIN <= ireq->i_val &&
3114                       ireq->i_val <= IEEE80211_FRAG_MAX))
3115                         return EINVAL;
3116                 vap->iv_fragthreshold = ireq->i_val;
3117                 error = ERESTART;
3118                 break;
3119         case IEEE80211_IOC_BURST:
3120                 if (ireq->i_val) {
3121                         if ((vap->iv_caps & IEEE80211_C_BURST) == 0)
3122                                 return EOPNOTSUPP;
3123                         ieee80211_syncflag(vap, IEEE80211_F_BURST);
3124                 } else
3125                         ieee80211_syncflag(vap, -IEEE80211_F_BURST);
3126                 error = ERESTART;
3127                 break;
3128         case IEEE80211_IOC_BMISSTHRESHOLD:
3129                 if (!(IEEE80211_HWBMISS_MIN <= ireq->i_val &&
3130                       ireq->i_val <= IEEE80211_HWBMISS_MAX))
3131                         return EINVAL;
3132                 vap->iv_bmissthreshold = ireq->i_val;
3133                 error = ERESTART;
3134                 break;
3135         case IEEE80211_IOC_CURCHAN:
3136                 error = ieee80211_ioctl_setcurchan(vap, ireq);
3137                 break;
3138         case IEEE80211_IOC_SHORTGI:
3139                 if (ireq->i_val) {
3140 #define IEEE80211_HTCAP_SHORTGI \
3141         (IEEE80211_HTCAP_SHORTGI20 | IEEE80211_HTCAP_SHORTGI40)
3142                         if (((ireq->i_val ^ vap->iv_htcaps) & IEEE80211_HTCAP_SHORTGI) != 0)
3143                                 return EINVAL;
3144                         if (ireq->i_val & IEEE80211_HTCAP_SHORTGI20)
3145                                 vap->iv_flags_ht |= IEEE80211_FHT_SHORTGI20;
3146                         if (ireq->i_val & IEEE80211_HTCAP_SHORTGI40)
3147                                 vap->iv_flags_ht |= IEEE80211_FHT_SHORTGI40;
3148 #undef IEEE80211_HTCAP_SHORTGI
3149                 } else
3150                         vap->iv_flags_ht &=
3151                             ~(IEEE80211_FHT_SHORTGI20 | IEEE80211_FHT_SHORTGI40);
3152                 error = ERESTART;
3153                 break;
3154         case IEEE80211_IOC_AMPDU:
3155                 if (ireq->i_val && (vap->iv_htcaps & IEEE80211_HTC_AMPDU) == 0)
3156                         return EINVAL;
3157                 if (ireq->i_val & 1)
3158                         vap->iv_flags_ht |= IEEE80211_FHT_AMPDU_TX;
3159                 else
3160                         vap->iv_flags_ht &= ~IEEE80211_FHT_AMPDU_TX;
3161                 if (ireq->i_val & 2)
3162                         vap->iv_flags_ht |= IEEE80211_FHT_AMPDU_RX;
3163                 else
3164                         vap->iv_flags_ht &= ~IEEE80211_FHT_AMPDU_RX;
3165                 /* NB: reset only if we're operating on an 11n channel */
3166                 if (isvapht(vap))
3167                         error = ERESTART;
3168                 break;
3169         case IEEE80211_IOC_AMPDU_LIMIT:
3170                 /* XXX TODO: figure out ampdu_limit versus ampdu_rxmax */
3171                 if (!(IEEE80211_HTCAP_MAXRXAMPDU_8K <= ireq->i_val &&
3172                       ireq->i_val <= IEEE80211_HTCAP_MAXRXAMPDU_64K))
3173                         return EINVAL;
3174                 if (vap->iv_opmode == IEEE80211_M_HOSTAP)
3175                         vap->iv_ampdu_rxmax = ireq->i_val;
3176                 else
3177                         vap->iv_ampdu_limit = ireq->i_val;
3178                 error = ERESTART;
3179                 break;
3180         case IEEE80211_IOC_AMPDU_DENSITY:
3181                 if (!(IEEE80211_HTCAP_MPDUDENSITY_NA <= ireq->i_val &&
3182                       ireq->i_val <= IEEE80211_HTCAP_MPDUDENSITY_16))
3183                         return EINVAL;
3184                 vap->iv_ampdu_density = ireq->i_val;
3185                 error = ERESTART;
3186                 break;
3187         case IEEE80211_IOC_AMSDU:
3188                 if (ireq->i_val && (vap->iv_htcaps & IEEE80211_HTC_AMSDU) == 0)
3189                         return EINVAL;
3190                 if (ireq->i_val & 1)
3191                         vap->iv_flags_ht |= IEEE80211_FHT_AMSDU_TX;
3192                 else
3193                         vap->iv_flags_ht &= ~IEEE80211_FHT_AMSDU_TX;
3194                 if (ireq->i_val & 2)
3195                         vap->iv_flags_ht |= IEEE80211_FHT_AMSDU_RX;
3196                 else
3197                         vap->iv_flags_ht &= ~IEEE80211_FHT_AMSDU_RX;
3198                 /* NB: reset only if we're operating on an 11n channel */
3199                 if (isvapht(vap))
3200                         error = ERESTART;
3201                 break;
3202         case IEEE80211_IOC_AMSDU_LIMIT:
3203                 /* XXX validate */
3204                 vap->iv_amsdu_limit = ireq->i_val;      /* XXX truncation? */
3205                 break;
3206         case IEEE80211_IOC_PUREN:
3207                 if (ireq->i_val) {
3208                         if ((vap->iv_flags_ht & IEEE80211_FHT_HT) == 0)
3209                                 return EINVAL;
3210                         vap->iv_flags_ht |= IEEE80211_FHT_PUREN;
3211                 } else
3212                         vap->iv_flags_ht &= ~IEEE80211_FHT_PUREN;
3213                 /* NB: reset only if we're operating on an 11n channel */
3214                 if (isvapht(vap))
3215                         error = ERESTART;
3216                 break;
3217         case IEEE80211_IOC_DOTH:
3218                 if (ireq->i_val) {
3219 #if 0
3220                         /* XXX no capability */
3221                         if ((vap->iv_caps & IEEE80211_C_DOTH) == 0)
3222                                 return EOPNOTSUPP;
3223 #endif
3224                         vap->iv_flags |= IEEE80211_F_DOTH;
3225                 } else
3226                         vap->iv_flags &= ~IEEE80211_F_DOTH;
3227                 error = ENETRESET;
3228                 break;
3229         case IEEE80211_IOC_REGDOMAIN:
3230                 error = ieee80211_ioctl_setregdomain(vap, ireq);
3231                 break;
3232         case IEEE80211_IOC_ROAM:
3233                 error = ieee80211_ioctl_setroam(vap, ireq);
3234                 break;
3235         case IEEE80211_IOC_TXPARAMS:
3236                 error = ieee80211_ioctl_settxparams(vap, ireq);
3237                 break;
3238         case IEEE80211_IOC_HTCOMPAT:
3239                 if (ireq->i_val) {
3240                         if ((vap->iv_flags_ht & IEEE80211_FHT_HT) == 0)
3241                                 return EOPNOTSUPP;
3242                         vap->iv_flags_ht |= IEEE80211_FHT_HTCOMPAT;
3243                 } else
3244                         vap->iv_flags_ht &= ~IEEE80211_FHT_HTCOMPAT;
3245                 /* NB: reset only if we're operating on an 11n channel */
3246                 if (isvapht(vap))
3247                         error = ERESTART;
3248                 break;
3249         case IEEE80211_IOC_DWDS:
3250                 if (ireq->i_val) {
3251                         /* NB: DWDS only makes sense for WDS-capable devices */
3252                         if ((ic->ic_caps & IEEE80211_C_WDS) == 0)
3253                                 return EOPNOTSUPP;
3254                         /* NB: DWDS is used only with ap+sta vaps */
3255                         if (vap->iv_opmode != IEEE80211_M_HOSTAP &&
3256                             vap->iv_opmode != IEEE80211_M_STA)
3257                                 return EINVAL;
3258                         vap->iv_flags |= IEEE80211_F_DWDS;
3259                         if (vap->iv_opmode == IEEE80211_M_STA)
3260                                 vap->iv_flags_ext |= IEEE80211_FEXT_4ADDR;
3261                 } else {
3262                         vap->iv_flags &= ~IEEE80211_F_DWDS;
3263                         if (vap->iv_opmode == IEEE80211_M_STA)
3264                                 vap->iv_flags_ext &= ~IEEE80211_FEXT_4ADDR;
3265                 }
3266                 break;
3267         case IEEE80211_IOC_INACTIVITY:
3268                 if (ireq->i_val)
3269                         vap->iv_flags_ext |= IEEE80211_FEXT_INACT;
3270                 else
3271                         vap->iv_flags_ext &= ~IEEE80211_FEXT_INACT;
3272                 break;
3273         case IEEE80211_IOC_APPIE:
3274                 error = ieee80211_ioctl_setappie(vap, ireq);
3275                 break;
3276         case IEEE80211_IOC_WPS:
3277                 if (ireq->i_val) {
3278                         if ((vap->iv_caps & IEEE80211_C_WPA) == 0)
3279                                 return EOPNOTSUPP;
3280                         vap->iv_flags_ext |= IEEE80211_FEXT_WPS;
3281                 } else
3282                         vap->iv_flags_ext &= ~IEEE80211_FEXT_WPS;
3283                 break;
3284         case IEEE80211_IOC_TSN:
3285                 if (ireq->i_val) {
3286                         if ((vap->iv_caps & IEEE80211_C_WPA) == 0)
3287                                 return EOPNOTSUPP;
3288                         vap->iv_flags_ext |= IEEE80211_FEXT_TSN;
3289                 } else
3290                         vap->iv_flags_ext &= ~IEEE80211_FEXT_TSN;
3291                 break;
3292         case IEEE80211_IOC_CHANSWITCH:
3293                 error = ieee80211_ioctl_chanswitch(vap, ireq);
3294                 break;
3295         case IEEE80211_IOC_DFS:
3296                 if (ireq->i_val) {
3297                         if ((vap->iv_caps & IEEE80211_C_DFS) == 0)
3298                                 return EOPNOTSUPP;
3299                         /* NB: DFS requires 11h support */
3300                         if ((vap->iv_flags & IEEE80211_F_DOTH) == 0)
3301                                 return EINVAL;
3302                         vap->iv_flags_ext |= IEEE80211_FEXT_DFS;
3303                 } else
3304                         vap->iv_flags_ext &= ~IEEE80211_FEXT_DFS;
3305                 break;
3306         case IEEE80211_IOC_DOTD:
3307                 if (ireq->i_val)
3308                         vap->iv_flags_ext |= IEEE80211_FEXT_DOTD;
3309                 else
3310                         vap->iv_flags_ext &= ~IEEE80211_FEXT_DOTD;
3311                 if (vap->iv_opmode == IEEE80211_M_STA)
3312                         error = ENETRESET;
3313                 break;
3314         case IEEE80211_IOC_HTPROTMODE:
3315                 if (ireq->i_val > IEEE80211_PROT_RTSCTS)
3316                         return EINVAL;
3317                 ic->ic_htprotmode = ireq->i_val ?
3318                     IEEE80211_PROT_RTSCTS : IEEE80211_PROT_NONE;
3319                 /* NB: if not operating in 11n this can wait */
3320                 if (isvapht(vap))
3321                         error = ERESTART;
3322                 break;
3323         case IEEE80211_IOC_STA_VLAN:
3324                 error = ieee80211_ioctl_setstavlan(vap, ireq);
3325                 break;
3326         case IEEE80211_IOC_SMPS:
3327                 if ((ireq->i_val &~ IEEE80211_HTCAP_SMPS) != 0 ||
3328                     ireq->i_val == 0x0008)      /* value of 2 is reserved */
3329                         return EINVAL;
3330                 if (ireq->i_val != IEEE80211_HTCAP_SMPS_OFF &&
3331                     (vap->iv_htcaps & IEEE80211_HTC_SMPS) == 0)
3332                         return EOPNOTSUPP;
3333                 vap->iv_htcaps = (vap->iv_htcaps &~ IEEE80211_HTCAP_SMPS) |
3334                         ireq->i_val;
3335                 /* NB: if not operating in 11n this can wait */
3336                 if (isvapht(vap))
3337                         error = ERESTART;
3338                 break;
3339         case IEEE80211_IOC_RIFS:
3340                 if (ireq->i_val != 0) {
3341                         if ((vap->iv_htcaps & IEEE80211_HTC_RIFS) == 0)
3342                                 return EOPNOTSUPP;
3343                         vap->iv_flags_ht |= IEEE80211_FHT_RIFS;
3344                 } else
3345                         vap->iv_flags_ht &= ~IEEE80211_FHT_RIFS;
3346                 /* NB: if not operating in 11n this can wait */
3347                 if (isvapht(vap))
3348                         error = ERESTART;
3349                 break;
3350         case IEEE80211_IOC_STBC:
3351                 /* Check if we can do STBC TX/RX before changing the setting */
3352                 if ((ireq->i_val & 1) &&
3353                     ((vap->iv_htcaps & IEEE80211_HTCAP_TXSTBC) == 0))
3354                         return EOPNOTSUPP;
3355                 if ((ireq->i_val & 2) &&
3356                     ((vap->iv_htcaps & IEEE80211_HTCAP_RXSTBC) == 0))
3357                         return EOPNOTSUPP;
3358
3359                 /* TX */
3360                 if (ireq->i_val & 1)
3361                         vap->iv_flags_ht |= IEEE80211_FHT_STBC_TX;
3362                 else
3363                         vap->iv_flags_ht &= ~IEEE80211_FHT_STBC_TX;
3364
3365                 /* RX */
3366                 if (ireq->i_val & 2)
3367                         vap->iv_flags_ht |= IEEE80211_FHT_STBC_RX;
3368                 else
3369                         vap->iv_flags_ht &= ~IEEE80211_FHT_STBC_RX;
3370
3371                 /* NB: reset only if we're operating on an 11n channel */
3372                 if (isvapht(vap))
3373                         error = ERESTART;
3374                 break;
3375
3376         /* VHT */
3377         case IEEE80211_IOC_VHTCONF:
3378                 if (ireq->i_val & 1)
3379                         ieee80211_syncflag_vht(vap, IEEE80211_FVHT_VHT);
3380                 else
3381                         ieee80211_syncflag_vht(vap, -IEEE80211_FVHT_VHT);
3382
3383                 if (ireq->i_val & 2)
3384                         ieee80211_syncflag_vht(vap, IEEE80211_FVHT_USEVHT40);
3385                 else
3386                         ieee80211_syncflag_vht(vap, -IEEE80211_FVHT_USEVHT40);
3387
3388                 if (ireq->i_val & 4)
3389                         ieee80211_syncflag_vht(vap, IEEE80211_FVHT_USEVHT80);
3390                 else
3391                         ieee80211_syncflag_vht(vap, -IEEE80211_FVHT_USEVHT80);
3392
3393                 if (ireq->i_val & 8)
3394                         ieee80211_syncflag_vht(vap, IEEE80211_FVHT_USEVHT80P80);
3395                 else
3396                         ieee80211_syncflag_vht(vap, -IEEE80211_FVHT_USEVHT80P80);
3397
3398                 if (ireq->i_val & 16)
3399                         ieee80211_syncflag_vht(vap, IEEE80211_FVHT_USEVHT160);
3400                 else
3401                         ieee80211_syncflag_vht(vap, -IEEE80211_FVHT_USEVHT160);
3402
3403                 error = ENETRESET;
3404                 break;
3405
3406         default:
3407                 error = ieee80211_ioctl_setdefault(vap, ireq);
3408                 break;
3409         }
3410         /*
3411          * The convention is that ENETRESET means an operation
3412          * requires a complete re-initialization of the device (e.g.
3413          * changing something that affects the association state).
3414          * ERESTART means the request may be handled with only a
3415          * reload of the hardware state.  We hand ERESTART requests
3416          * to the iv_reset callback so the driver can decide.  If
3417          * a device does not fillin iv_reset then it defaults to one
3418          * that returns ENETRESET.  Otherwise a driver may return
3419          * ENETRESET (in which case a full reset will be done) or
3420          * 0 to mean there's no need to do anything (e.g. when the
3421          * change has no effect on the driver/device).
3422          */
3423         if (error == ERESTART)
3424                 error = IFNET_IS_UP_RUNNING(vap->iv_ifp) ?
3425                     vap->iv_reset(vap, ireq->i_type) : 0;
3426         if (error == ENETRESET) {
3427                 /* XXX need to re-think AUTO handling */
3428                 if (IS_UP_AUTO(vap))
3429                         ieee80211_init(vap);
3430                 error = 0;
3431         }
3432         return error;
3433 }
3434
3435 int
3436 ieee80211_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
3437 {
3438         struct ieee80211vap *vap = ifp->if_softc;
3439         struct ieee80211com *ic = vap->iv_ic;
3440         int error = 0, wait = 0;
3441         struct ifreq *ifr;
3442         struct ifaddr *ifa;                     /* XXX */
3443
3444         switch (cmd) {
3445         case SIOCSIFFLAGS:
3446                 IEEE80211_LOCK(ic);
3447                 if ((ifp->if_flags ^ vap->iv_ifflags) & IFF_PROMISC) {
3448                         /*
3449                          * Enable promiscuous mode when:
3450                          * 1. Interface is not a member of bridge, or
3451                          * 2. Requested by user, or
3452                          * 3. In monitor (or adhoc-demo) mode.
3453                          */
3454                         if (ifp->if_bridge == NULL ||
3455                             (ifp->if_flags & IFF_PPROMISC) != 0 ||
3456                             vap->iv_opmode == IEEE80211_M_MONITOR ||
3457                             (vap->iv_opmode == IEEE80211_M_AHDEMO &&
3458                             (vap->iv_caps & IEEE80211_C_TDMA) == 0)) {
3459                                 ieee80211_promisc(vap,
3460                                     ifp->if_flags & IFF_PROMISC);
3461                                 vap->iv_ifflags ^= IFF_PROMISC;
3462                         }
3463                 }
3464                 if ((ifp->if_flags ^ vap->iv_ifflags) & IFF_ALLMULTI) {
3465                         ieee80211_allmulti(vap, ifp->if_flags & IFF_ALLMULTI);
3466                         vap->iv_ifflags ^= IFF_ALLMULTI;
3467                 }
3468                 if (ifp->if_flags & IFF_UP) {
3469                         /*
3470                          * Bring ourself up unless we're already operational.
3471                          * If we're the first vap and the parent is not up
3472                          * then it will automatically be brought up as a
3473                          * side-effect of bringing ourself up.
3474                          */
3475                         if (vap->iv_state == IEEE80211_S_INIT) {
3476                                 if (ic->ic_nrunning == 0)
3477                                         wait = 1;
3478                                 ieee80211_start_locked(vap);
3479                         }
3480                 } else if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
3481                         /*
3482                          * Stop ourself.  If we are the last vap to be
3483                          * marked down the parent will also be taken down.
3484                          */
3485                         if (ic->ic_nrunning == 1)
3486                                 wait = 1;
3487                         ieee80211_stop_locked(vap);
3488                 }
3489                 IEEE80211_UNLOCK(ic);
3490                 /* Wait for parent ioctl handler if it was queued */
3491                 if (wait) {
3492                         ieee80211_waitfor_parent(ic);
3493
3494                         /*
3495                          * Check if the MAC address was changed
3496                          * via SIOCSIFLLADDR ioctl.
3497                          */
3498                         if_addr_rlock(ifp);
3499                         if ((ifp->if_flags & IFF_UP) == 0 &&
3500                             !IEEE80211_ADDR_EQ(vap->iv_myaddr, IF_LLADDR(ifp)))
3501                                 IEEE80211_ADDR_COPY(vap->iv_myaddr,
3502                                     IF_LLADDR(ifp));
3503                         if_addr_runlock(ifp);
3504                 }
3505                 break;
3506         case SIOCADDMULTI:
3507         case SIOCDELMULTI:
3508                 ieee80211_runtask(ic, &ic->ic_mcast_task);
3509                 break;
3510         case SIOCSIFMEDIA:
3511         case SIOCGIFMEDIA:
3512                 ifr = (struct ifreq *)data;
3513                 error = ifmedia_ioctl(ifp, ifr, &vap->iv_media, cmd);
3514                 break;
3515         case SIOCG80211:
3516                 error = ieee80211_ioctl_get80211(vap, cmd,
3517                                 (struct ieee80211req *) data);
3518                 break;
3519         case SIOCS80211:
3520                 error = priv_check(curthread, PRIV_NET80211_MANAGE);
3521                 if (error == 0)
3522                         error = ieee80211_ioctl_set80211(vap, cmd,
3523                                         (struct ieee80211req *) data);
3524                 break;
3525         case SIOCG80211STATS:
3526                 ifr = (struct ifreq *)data;
3527                 copyout(&vap->iv_stats, ifr->ifr_data, sizeof (vap->iv_stats));
3528                 break;
3529         case SIOCSIFMTU:
3530                 ifr = (struct ifreq *)data;
3531                 if (!(IEEE80211_MTU_MIN <= ifr->ifr_mtu &&
3532                     ifr->ifr_mtu <= IEEE80211_MTU_MAX))
3533                         error = EINVAL;
3534                 else
3535                         ifp->if_mtu = ifr->ifr_mtu;
3536                 break;
3537         case SIOCSIFADDR:
3538                 /*
3539                  * XXX Handle this directly so we can suppress if_init calls.
3540                  * XXX This should be done in ether_ioctl but for the moment
3541                  * XXX there are too many other parts of the system that
3542                  * XXX set IFF_UP and so suppress if_init being called when
3543                  * XXX it should be.
3544                  */
3545                 ifa = (struct ifaddr *) data;
3546                 switch (ifa->ifa_addr->sa_family) {
3547 #ifdef INET
3548                 case AF_INET:
3549                         if ((ifp->if_flags & IFF_UP) == 0) {
3550                                 ifp->if_flags |= IFF_UP;
3551                                 ifp->if_init(ifp->if_softc);
3552                         }
3553                         arp_ifinit(ifp, ifa);
3554                         break;
3555 #endif
3556                 default:
3557                         if ((ifp->if_flags & IFF_UP) == 0) {
3558                                 ifp->if_flags |= IFF_UP;
3559                                 ifp->if_init(ifp->if_softc);
3560                         }
3561                         break;
3562                 }
3563                 break;
3564         default:
3565                 /*
3566                  * Pass unknown ioctls first to the driver, and if it
3567                  * returns ENOTTY, then to the generic Ethernet handler.
3568                  */
3569                 if (ic->ic_ioctl != NULL &&
3570                     (error = ic->ic_ioctl(ic, cmd, data)) != ENOTTY)
3571                         break;
3572                 error = ether_ioctl(ifp, cmd, data);
3573                 break;
3574         }
3575         return (error);
3576 }