The Design and Implementation of the FreeBSD Operating System, Second Edition
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FreeBSD/Linux Kernel Cross Reference
sys/net80211/ieee80211_ioctl.c

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    1 /*-
    2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
    3  *
    4  * Copyright (c) 2001 Atsushi Onoe
    5  * Copyright (c) 2002-2009 Sam Leffler, Errno Consulting
    6  * All rights reserved.
    7  *
    8  * Redistribution and use in source and binary forms, with or without
    9  * modification, are permitted provided that the following conditions
   10  * are met:
   11  * 1. Redistributions of source code must retain the above copyright
   12  *    notice, this list of conditions and the following disclaimer.
   13  * 2. Redistributions in binary form must reproduce the above copyright
   14  *    notice, this list of conditions and the following disclaimer in the
   15  *    documentation and/or other materials provided with the distribution.
   16  *
   17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
   18  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   19  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   20  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
   21  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   22  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   27  */
   28 
   29 #include <sys/cdefs.h>
   30 __FBSDID("$FreeBSD: head/sys/net80211/ieee80211_ioctl.c 343837 2019-02-06 13:01:21Z avos $");
   31 
   32 /*
   33  * IEEE 802.11 ioctl support (FreeBSD-specific)
   34  */
   35 
   36 #include "opt_inet.h"
   37 #include "opt_wlan.h"
   38 
   39 #include <sys/endian.h>
   40 #include <sys/param.h>
   41 #include <sys/kernel.h>
   42 #include <sys/malloc.h>
   43 #include <sys/priv.h>
   44 #include <sys/socket.h>
   45 #include <sys/sockio.h>
   46 #include <sys/systm.h>
   47  
   48 #include <net/if.h>
   49 #include <net/if_var.h>
   50 #include <net/if_dl.h>
   51 #include <net/if_media.h>
   52 #include <net/ethernet.h>
   53 
   54 #ifdef INET
   55 #include <netinet/in.h>
   56 #include <netinet/if_ether.h>
   57 #endif
   58 
   59 #include <net80211/ieee80211_var.h>
   60 #include <net80211/ieee80211_ioctl.h>
   61 #include <net80211/ieee80211_regdomain.h>
   62 #include <net80211/ieee80211_input.h>
   63 
   64 #define IS_UP_AUTO(_vap) \
   65         (IFNET_IS_UP_RUNNING((_vap)->iv_ifp) && \
   66          (_vap)->iv_roaming == IEEE80211_ROAMING_AUTO)
   67 
   68 static const uint8_t zerobssid[IEEE80211_ADDR_LEN];
   69 static struct ieee80211_channel *findchannel(struct ieee80211com *,
   70                 int ieee, int mode);
   71 static int ieee80211_scanreq(struct ieee80211vap *,
   72                 struct ieee80211_scan_req *);
   73 
   74 static int
   75 ieee80211_ioctl_getkey(struct ieee80211vap *vap, struct ieee80211req *ireq)
   76 {
   77         struct ieee80211com *ic = vap->iv_ic;
   78         struct ieee80211_node *ni;
   79         struct ieee80211req_key ik;
   80         struct ieee80211_key *wk;
   81         const struct ieee80211_cipher *cip;
   82         u_int kid;
   83         int error;
   84 
   85         if (ireq->i_len != sizeof(ik))
   86                 return EINVAL;
   87         error = copyin(ireq->i_data, &ik, sizeof(ik));
   88         if (error)
   89                 return error;
   90         kid = ik.ik_keyix;
   91         if (kid == IEEE80211_KEYIX_NONE) {
   92                 ni = ieee80211_find_vap_node(&ic->ic_sta, vap, ik.ik_macaddr);
   93                 if (ni == NULL)
   94                         return ENOENT;
   95                 wk = &ni->ni_ucastkey;
   96         } else {
   97                 if (kid >= IEEE80211_WEP_NKID)
   98                         return EINVAL;
   99                 wk = &vap->iv_nw_keys[kid];
  100                 IEEE80211_ADDR_COPY(&ik.ik_macaddr, vap->iv_bss->ni_macaddr);
  101                 ni = NULL;
  102         }
  103         cip = wk->wk_cipher;
  104         ik.ik_type = cip->ic_cipher;
  105         ik.ik_keylen = wk->wk_keylen;
  106         ik.ik_flags = wk->wk_flags & (IEEE80211_KEY_XMIT | IEEE80211_KEY_RECV);
  107         if (wk->wk_keyix == vap->iv_def_txkey)
  108                 ik.ik_flags |= IEEE80211_KEY_DEFAULT;
  109         if (priv_check(curthread, PRIV_NET80211_GETKEY) == 0) {
  110                 /* NB: only root can read key data */
  111                 ik.ik_keyrsc = wk->wk_keyrsc[IEEE80211_NONQOS_TID];
  112                 ik.ik_keytsc = wk->wk_keytsc;
  113                 memcpy(ik.ik_keydata, wk->wk_key, wk->wk_keylen);
  114                 if (cip->ic_cipher == IEEE80211_CIPHER_TKIP) {
  115                         memcpy(ik.ik_keydata+wk->wk_keylen,
  116                                 wk->wk_key + IEEE80211_KEYBUF_SIZE,
  117                                 IEEE80211_MICBUF_SIZE);
  118                         ik.ik_keylen += IEEE80211_MICBUF_SIZE;
  119                 }
  120         } else {
  121                 ik.ik_keyrsc = 0;
  122                 ik.ik_keytsc = 0;
  123                 memset(ik.ik_keydata, 0, sizeof(ik.ik_keydata));
  124         }
  125         if (ni != NULL)
  126                 ieee80211_free_node(ni);
  127         return copyout(&ik, ireq->i_data, sizeof(ik));
  128 }
  129 
  130 static int
  131 ieee80211_ioctl_getchanlist(struct ieee80211vap *vap, struct ieee80211req *ireq)
  132 {
  133         struct ieee80211com *ic = vap->iv_ic;
  134 
  135         if (sizeof(ic->ic_chan_active) < ireq->i_len)
  136                 ireq->i_len = sizeof(ic->ic_chan_active);
  137         return copyout(&ic->ic_chan_active, ireq->i_data, ireq->i_len);
  138 }
  139 
  140 static int
  141 ieee80211_ioctl_getchaninfo(struct ieee80211vap *vap, struct ieee80211req *ireq)
  142 {
  143         struct ieee80211com *ic = vap->iv_ic;
  144         uint32_t space;
  145 
  146         space = __offsetof(struct ieee80211req_chaninfo,
  147                         ic_chans[ic->ic_nchans]);
  148         if (space > ireq->i_len)
  149                 space = ireq->i_len;
  150         /* XXX assumes compatible layout */
  151         return copyout(&ic->ic_nchans, ireq->i_data, space);
  152 }
  153 
  154 static int
  155 ieee80211_ioctl_getwpaie(struct ieee80211vap *vap,
  156         struct ieee80211req *ireq, int req)
  157 {
  158         struct ieee80211_node *ni;
  159         struct ieee80211req_wpaie2 *wpaie;
  160         int error;
  161 
  162         if (ireq->i_len < IEEE80211_ADDR_LEN)
  163                 return EINVAL;
  164         wpaie = IEEE80211_MALLOC(sizeof(*wpaie), M_TEMP,
  165             IEEE80211_M_NOWAIT | IEEE80211_M_ZERO);
  166         if (wpaie == NULL)
  167                 return ENOMEM;
  168         error = copyin(ireq->i_data, wpaie->wpa_macaddr, IEEE80211_ADDR_LEN);
  169         if (error != 0)
  170                 goto bad;
  171         ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap, wpaie->wpa_macaddr);
  172         if (ni == NULL) {
  173                 error = ENOENT;
  174                 goto bad;
  175         }
  176         if (ni->ni_ies.wpa_ie != NULL) {
  177                 int ielen = ni->ni_ies.wpa_ie[1] + 2;
  178                 if (ielen > sizeof(wpaie->wpa_ie))
  179                         ielen = sizeof(wpaie->wpa_ie);
  180                 memcpy(wpaie->wpa_ie, ni->ni_ies.wpa_ie, ielen);
  181         }
  182         if (req == IEEE80211_IOC_WPAIE2) {
  183                 if (ni->ni_ies.rsn_ie != NULL) {
  184                         int ielen = ni->ni_ies.rsn_ie[1] + 2;
  185                         if (ielen > sizeof(wpaie->rsn_ie))
  186                                 ielen = sizeof(wpaie->rsn_ie);
  187                         memcpy(wpaie->rsn_ie, ni->ni_ies.rsn_ie, ielen);
  188                 }
  189                 if (ireq->i_len > sizeof(struct ieee80211req_wpaie2))
  190                         ireq->i_len = sizeof(struct ieee80211req_wpaie2);
  191         } else {
  192                 /* compatibility op, may overwrite wpa ie */
  193                 /* XXX check ic_flags? */
  194                 if (ni->ni_ies.rsn_ie != NULL) {
  195                         int ielen = ni->ni_ies.rsn_ie[1] + 2;
  196                         if (ielen > sizeof(wpaie->wpa_ie))
  197                                 ielen = sizeof(wpaie->wpa_ie);
  198                         memcpy(wpaie->wpa_ie, ni->ni_ies.rsn_ie, ielen);
  199                 }
  200                 if (ireq->i_len > sizeof(struct ieee80211req_wpaie))
  201                         ireq->i_len = sizeof(struct ieee80211req_wpaie);
  202         }
  203         ieee80211_free_node(ni);
  204         error = copyout(wpaie, ireq->i_data, ireq->i_len);
  205 bad:
  206         IEEE80211_FREE(wpaie, M_TEMP);
  207         return error;
  208 }
  209 
  210 static int
  211 ieee80211_ioctl_getstastats(struct ieee80211vap *vap, struct ieee80211req *ireq)
  212 {
  213         struct ieee80211_node *ni;
  214         uint8_t macaddr[IEEE80211_ADDR_LEN];
  215         const size_t off = __offsetof(struct ieee80211req_sta_stats, is_stats);
  216         int error;
  217 
  218         if (ireq->i_len < off)
  219                 return EINVAL;
  220         error = copyin(ireq->i_data, macaddr, IEEE80211_ADDR_LEN);
  221         if (error != 0)
  222                 return error;
  223         ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap, macaddr);
  224         if (ni == NULL)
  225                 return ENOENT;
  226         if (ireq->i_len > sizeof(struct ieee80211req_sta_stats))
  227                 ireq->i_len = sizeof(struct ieee80211req_sta_stats);
  228         /* NB: copy out only the statistics */
  229         error = copyout(&ni->ni_stats, (uint8_t *) ireq->i_data + off,
  230                         ireq->i_len - off);
  231         ieee80211_free_node(ni);
  232         return error;
  233 }
  234 
  235 struct scanreq {
  236         struct ieee80211req_scan_result *sr;
  237         size_t space;
  238 };
  239 
  240 static size_t
  241 scan_space(const struct ieee80211_scan_entry *se, int *ielen)
  242 {
  243         size_t len;
  244 
  245         *ielen = se->se_ies.len;
  246         /*
  247          * NB: ie's can be no more than 255 bytes and the max 802.11
  248          * packet is <3Kbytes so we are sure this doesn't overflow
  249          * 16-bits; if this is a concern we can drop the ie's.
  250          */
  251         len = sizeof(struct ieee80211req_scan_result) + se->se_ssid[1] +
  252             se->se_meshid[1] + *ielen;
  253         return roundup(len, sizeof(uint32_t));
  254 }
  255 
  256 static void
  257 get_scan_space(void *arg, const struct ieee80211_scan_entry *se)
  258 {
  259         struct scanreq *req = arg;
  260         int ielen;
  261 
  262         req->space += scan_space(se, &ielen);
  263 }
  264 
  265 static void
  266 get_scan_result(void *arg, const struct ieee80211_scan_entry *se)
  267 {
  268         struct scanreq *req = arg;
  269         struct ieee80211req_scan_result *sr;
  270         int ielen, len, nr, nxr;
  271         uint8_t *cp;
  272 
  273         len = scan_space(se, &ielen);
  274         if (len > req->space)
  275                 return;
  276 
  277         sr = req->sr;
  278         KASSERT(len <= 65535 && ielen <= 65535,
  279             ("len %u ssid %u ie %u", len, se->se_ssid[1], ielen));
  280         sr->isr_len = len;
  281         sr->isr_ie_off = sizeof(struct ieee80211req_scan_result);
  282         sr->isr_ie_len = ielen;
  283         sr->isr_freq = se->se_chan->ic_freq;
  284         sr->isr_flags = se->se_chan->ic_flags;
  285         sr->isr_rssi = se->se_rssi;
  286         sr->isr_noise = se->se_noise;
  287         sr->isr_intval = se->se_intval;
  288         sr->isr_capinfo = se->se_capinfo;
  289         sr->isr_erp = se->se_erp;
  290         IEEE80211_ADDR_COPY(sr->isr_bssid, se->se_bssid);
  291         nr = min(se->se_rates[1], IEEE80211_RATE_MAXSIZE);
  292         memcpy(sr->isr_rates, se->se_rates+2, nr);
  293         nxr = min(se->se_xrates[1], IEEE80211_RATE_MAXSIZE - nr);
  294         memcpy(sr->isr_rates+nr, se->se_xrates+2, nxr);
  295         sr->isr_nrates = nr + nxr;
  296 
  297         /* copy SSID */
  298         sr->isr_ssid_len = se->se_ssid[1];
  299         cp = ((uint8_t *)sr) + sr->isr_ie_off;
  300         memcpy(cp, se->se_ssid+2, sr->isr_ssid_len);
  301 
  302         /* copy mesh id */
  303         cp += sr->isr_ssid_len;
  304         sr->isr_meshid_len = se->se_meshid[1];
  305         memcpy(cp, se->se_meshid+2, sr->isr_meshid_len);
  306         cp += sr->isr_meshid_len;
  307 
  308         if (ielen)
  309                 memcpy(cp, se->se_ies.data, ielen);
  310 
  311         req->space -= len;
  312         req->sr = (struct ieee80211req_scan_result *)(((uint8_t *)sr) + len);
  313 }
  314 
  315 static int
  316 ieee80211_ioctl_getscanresults(struct ieee80211vap *vap,
  317         struct ieee80211req *ireq)
  318 {
  319         struct scanreq req;
  320         int error;
  321 
  322         if (ireq->i_len < sizeof(struct scanreq))
  323                 return EFAULT;
  324 
  325         error = 0;
  326         req.space = 0;
  327         ieee80211_scan_iterate(vap, get_scan_space, &req);
  328         if (req.space > ireq->i_len)
  329                 req.space = ireq->i_len;
  330         if (req.space > 0) {
  331                 uint32_t space;
  332                 void *p;
  333 
  334                 space = req.space;
  335                 /* XXX M_WAITOK after driver lock released */
  336                 p = IEEE80211_MALLOC(space, M_TEMP,
  337                     IEEE80211_M_NOWAIT | IEEE80211_M_ZERO);
  338                 if (p == NULL)
  339                         return ENOMEM;
  340                 req.sr = p;
  341                 ieee80211_scan_iterate(vap, get_scan_result, &req);
  342                 ireq->i_len = space - req.space;
  343                 error = copyout(p, ireq->i_data, ireq->i_len);
  344                 IEEE80211_FREE(p, M_TEMP);
  345         } else
  346                 ireq->i_len = 0;
  347 
  348         return error;
  349 }
  350 
  351 struct stainforeq {
  352         struct ieee80211req_sta_info *si;
  353         size_t  space;
  354 };
  355 
  356 static size_t
  357 sta_space(const struct ieee80211_node *ni, size_t *ielen)
  358 {
  359         *ielen = ni->ni_ies.len;
  360         return roundup(sizeof(struct ieee80211req_sta_info) + *ielen,
  361                       sizeof(uint32_t));
  362 }
  363 
  364 static void
  365 get_sta_space(void *arg, struct ieee80211_node *ni)
  366 {
  367         struct stainforeq *req = arg;
  368         size_t ielen;
  369 
  370         if (ni->ni_vap->iv_opmode == IEEE80211_M_HOSTAP &&
  371             ni->ni_associd == 0)        /* only associated stations */
  372                 return;
  373         req->space += sta_space(ni, &ielen);
  374 }
  375 
  376 static void
  377 get_sta_info(void *arg, struct ieee80211_node *ni)
  378 {
  379         struct stainforeq *req = arg;
  380         struct ieee80211vap *vap = ni->ni_vap;
  381         struct ieee80211req_sta_info *si;
  382         size_t ielen, len;
  383         uint8_t *cp;
  384 
  385         if (vap->iv_opmode == IEEE80211_M_HOSTAP &&
  386             ni->ni_associd == 0)        /* only associated stations */
  387                 return;
  388         if (ni->ni_chan == IEEE80211_CHAN_ANYC) /* XXX bogus entry */
  389                 return;
  390         len = sta_space(ni, &ielen);
  391         if (len > req->space)
  392                 return;
  393         si = req->si;
  394         si->isi_len = len;
  395         si->isi_ie_off = sizeof(struct ieee80211req_sta_info);
  396         si->isi_ie_len = ielen;
  397         si->isi_freq = ni->ni_chan->ic_freq;
  398         si->isi_flags = ni->ni_chan->ic_flags;
  399         si->isi_state = ni->ni_flags;
  400         si->isi_authmode = ni->ni_authmode;
  401         vap->iv_ic->ic_node_getsignal(ni, &si->isi_rssi, &si->isi_noise);
  402         vap->iv_ic->ic_node_getmimoinfo(ni, &si->isi_mimo);
  403         si->isi_capinfo = ni->ni_capinfo;
  404         si->isi_erp = ni->ni_erp;
  405         IEEE80211_ADDR_COPY(si->isi_macaddr, ni->ni_macaddr);
  406         si->isi_nrates = ni->ni_rates.rs_nrates;
  407         if (si->isi_nrates > 15)
  408                 si->isi_nrates = 15;
  409         memcpy(si->isi_rates, ni->ni_rates.rs_rates, si->isi_nrates);
  410         si->isi_txrate = ni->ni_txrate;
  411         if (si->isi_txrate & IEEE80211_RATE_MCS) {
  412                 const struct ieee80211_mcs_rates *mcs =
  413                     &ieee80211_htrates[ni->ni_txrate &~ IEEE80211_RATE_MCS];
  414                 if (IEEE80211_IS_CHAN_HT40(ni->ni_chan)) {
  415                         if (ni->ni_flags & IEEE80211_NODE_SGI40)
  416                                 si->isi_txmbps = mcs->ht40_rate_800ns;
  417                         else
  418                                 si->isi_txmbps = mcs->ht40_rate_400ns;
  419                 } else {
  420                         if (ni->ni_flags & IEEE80211_NODE_SGI20)
  421                                 si->isi_txmbps = mcs->ht20_rate_800ns;
  422                         else
  423                                 si->isi_txmbps = mcs->ht20_rate_400ns;
  424                 }
  425         } else
  426                 si->isi_txmbps = si->isi_txrate;
  427         si->isi_associd = ni->ni_associd;
  428         si->isi_txpower = ni->ni_txpower;
  429         si->isi_vlan = ni->ni_vlan;
  430         if (ni->ni_flags & IEEE80211_NODE_QOS) {
  431                 memcpy(si->isi_txseqs, ni->ni_txseqs, sizeof(ni->ni_txseqs));
  432                 memcpy(si->isi_rxseqs, ni->ni_rxseqs, sizeof(ni->ni_rxseqs));
  433         } else {
  434                 si->isi_txseqs[0] = ni->ni_txseqs[IEEE80211_NONQOS_TID];
  435                 si->isi_rxseqs[0] = ni->ni_rxseqs[IEEE80211_NONQOS_TID];
  436         }
  437         /* NB: leave all cases in case we relax ni_associd == 0 check */
  438         if (ieee80211_node_is_authorized(ni))
  439                 si->isi_inact = vap->iv_inact_run;
  440         else if (ni->ni_associd != 0 ||
  441             (vap->iv_opmode == IEEE80211_M_WDS &&
  442              (vap->iv_flags_ext & IEEE80211_FEXT_WDSLEGACY)))
  443                 si->isi_inact = vap->iv_inact_auth;
  444         else
  445                 si->isi_inact = vap->iv_inact_init;
  446         si->isi_inact = (si->isi_inact - ni->ni_inact) * IEEE80211_INACT_WAIT;
  447         si->isi_localid = ni->ni_mllid;
  448         si->isi_peerid = ni->ni_mlpid;
  449         si->isi_peerstate = ni->ni_mlstate;
  450 
  451         if (ielen) {
  452                 cp = ((uint8_t *)si) + si->isi_ie_off;
  453                 memcpy(cp, ni->ni_ies.data, ielen);
  454         }
  455 
  456         req->si = (struct ieee80211req_sta_info *)(((uint8_t *)si) + len);
  457         req->space -= len;
  458 }
  459 
  460 static int
  461 getstainfo_common(struct ieee80211vap *vap, struct ieee80211req *ireq,
  462         struct ieee80211_node *ni, size_t off)
  463 {
  464         struct ieee80211com *ic = vap->iv_ic;
  465         struct stainforeq req;
  466         size_t space;
  467         void *p;
  468         int error;
  469 
  470         error = 0;
  471         req.space = 0;
  472         if (ni == NULL) {
  473                 ieee80211_iterate_nodes_vap(&ic->ic_sta, vap, get_sta_space,
  474                     &req);
  475         } else
  476                 get_sta_space(&req, ni);
  477         if (req.space > ireq->i_len)
  478                 req.space = ireq->i_len;
  479         if (req.space > 0) {
  480                 space = req.space;
  481                 /* XXX M_WAITOK after driver lock released */
  482                 p = IEEE80211_MALLOC(space, M_TEMP,
  483                     IEEE80211_M_NOWAIT | IEEE80211_M_ZERO);
  484                 if (p == NULL) {
  485                         error = ENOMEM;
  486                         goto bad;
  487                 }
  488                 req.si = p;
  489                 if (ni == NULL) {
  490                         ieee80211_iterate_nodes_vap(&ic->ic_sta, vap,
  491                             get_sta_info, &req);
  492                 } else
  493                         get_sta_info(&req, ni);
  494                 ireq->i_len = space - req.space;
  495                 error = copyout(p, (uint8_t *) ireq->i_data+off, ireq->i_len);
  496                 IEEE80211_FREE(p, M_TEMP);
  497         } else
  498                 ireq->i_len = 0;
  499 bad:
  500         if (ni != NULL)
  501                 ieee80211_free_node(ni);
  502         return error;
  503 }
  504 
  505 static int
  506 ieee80211_ioctl_getstainfo(struct ieee80211vap *vap, struct ieee80211req *ireq)
  507 {
  508         uint8_t macaddr[IEEE80211_ADDR_LEN];
  509         const size_t off = __offsetof(struct ieee80211req_sta_req, info);
  510         struct ieee80211_node *ni;
  511         int error;
  512 
  513         if (ireq->i_len < sizeof(struct ieee80211req_sta_req))
  514                 return EFAULT;
  515         error = copyin(ireq->i_data, macaddr, IEEE80211_ADDR_LEN);
  516         if (error != 0)
  517                 return error;
  518         if (IEEE80211_ADDR_EQ(macaddr, vap->iv_ifp->if_broadcastaddr)) {
  519                 ni = NULL;
  520         } else {
  521                 ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap, macaddr);
  522                 if (ni == NULL)
  523                         return ENOENT;
  524         }
  525         return getstainfo_common(vap, ireq, ni, off);
  526 }
  527 
  528 static int
  529 ieee80211_ioctl_getstatxpow(struct ieee80211vap *vap, struct ieee80211req *ireq)
  530 {
  531         struct ieee80211_node *ni;
  532         struct ieee80211req_sta_txpow txpow;
  533         int error;
  534 
  535         if (ireq->i_len != sizeof(txpow))
  536                 return EINVAL;
  537         error = copyin(ireq->i_data, &txpow, sizeof(txpow));
  538         if (error != 0)
  539                 return error;
  540         ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap, txpow.it_macaddr);
  541         if (ni == NULL)
  542                 return ENOENT;
  543         txpow.it_txpow = ni->ni_txpower;
  544         error = copyout(&txpow, ireq->i_data, sizeof(txpow));
  545         ieee80211_free_node(ni);
  546         return error;
  547 }
  548 
  549 static int
  550 ieee80211_ioctl_getwmeparam(struct ieee80211vap *vap, struct ieee80211req *ireq)
  551 {
  552         struct ieee80211com *ic = vap->iv_ic;
  553         struct ieee80211_wme_state *wme = &ic->ic_wme;
  554         struct wmeParams *wmep;
  555         int ac;
  556 
  557         if ((ic->ic_caps & IEEE80211_C_WME) == 0)
  558                 return EINVAL;
  559 
  560         ac = (ireq->i_len & IEEE80211_WMEPARAM_VAL);
  561         if (ac >= WME_NUM_AC)
  562                 ac = WME_AC_BE;
  563         if (ireq->i_len & IEEE80211_WMEPARAM_BSS)
  564                 wmep = &wme->wme_wmeBssChanParams.cap_wmeParams[ac];
  565         else
  566                 wmep = &wme->wme_wmeChanParams.cap_wmeParams[ac];
  567         switch (ireq->i_type) {
  568         case IEEE80211_IOC_WME_CWMIN:           /* WME: CWmin */
  569                 ireq->i_val = wmep->wmep_logcwmin;
  570                 break;
  571         case IEEE80211_IOC_WME_CWMAX:           /* WME: CWmax */
  572                 ireq->i_val = wmep->wmep_logcwmax;
  573                 break;
  574         case IEEE80211_IOC_WME_AIFS:            /* WME: AIFS */
  575                 ireq->i_val = wmep->wmep_aifsn;
  576                 break;
  577         case IEEE80211_IOC_WME_TXOPLIMIT:       /* WME: txops limit */
  578                 ireq->i_val = wmep->wmep_txopLimit;
  579                 break;
  580         case IEEE80211_IOC_WME_ACM:             /* WME: ACM (bss only) */
  581                 wmep = &wme->wme_wmeBssChanParams.cap_wmeParams[ac];
  582                 ireq->i_val = wmep->wmep_acm;
  583                 break;
  584         case IEEE80211_IOC_WME_ACKPOLICY:       /* WME: ACK policy (!bss only)*/
  585                 wmep = &wme->wme_wmeChanParams.cap_wmeParams[ac];
  586                 ireq->i_val = !wmep->wmep_noackPolicy;
  587                 break;
  588         }
  589         return 0;
  590 }
  591 
  592 static int
  593 ieee80211_ioctl_getmaccmd(struct ieee80211vap *vap, struct ieee80211req *ireq)
  594 {
  595         const struct ieee80211_aclator *acl = vap->iv_acl;
  596 
  597         return (acl == NULL ? EINVAL : acl->iac_getioctl(vap, ireq));
  598 }
  599 
  600 static int
  601 ieee80211_ioctl_getcurchan(struct ieee80211vap *vap, struct ieee80211req *ireq)
  602 {
  603         struct ieee80211com *ic = vap->iv_ic;
  604         struct ieee80211_channel *c;
  605 
  606         if (ireq->i_len != sizeof(struct ieee80211_channel))
  607                 return EINVAL;
  608         /*
  609          * vap's may have different operating channels when HT is
  610          * in use.  When in RUN state report the vap-specific channel.
  611          * Otherwise return curchan.
  612          */
  613         if (vap->iv_state == IEEE80211_S_RUN || vap->iv_state == IEEE80211_S_SLEEP)
  614                 c = vap->iv_bss->ni_chan;
  615         else
  616                 c = ic->ic_curchan;
  617         return copyout(c, ireq->i_data, sizeof(*c));
  618 }
  619 
  620 static int
  621 getappie(const struct ieee80211_appie *aie, struct ieee80211req *ireq)
  622 {
  623         if (aie == NULL)
  624                 return EINVAL;
  625         /* NB: truncate, caller can check length */
  626         if (ireq->i_len > aie->ie_len)
  627                 ireq->i_len = aie->ie_len;
  628         return copyout(aie->ie_data, ireq->i_data, ireq->i_len);
  629 }
  630 
  631 static int
  632 ieee80211_ioctl_getappie(struct ieee80211vap *vap, struct ieee80211req *ireq)
  633 {
  634         uint8_t fc0;
  635 
  636         fc0 = ireq->i_val & 0xff;
  637         if ((fc0 & IEEE80211_FC0_TYPE_MASK) != IEEE80211_FC0_TYPE_MGT)
  638                 return EINVAL;
  639         /* NB: could check iv_opmode and reject but hardly worth the effort */
  640         switch (fc0 & IEEE80211_FC0_SUBTYPE_MASK) {
  641         case IEEE80211_FC0_SUBTYPE_BEACON:
  642                 return getappie(vap->iv_appie_beacon, ireq);
  643         case IEEE80211_FC0_SUBTYPE_PROBE_RESP:
  644                 return getappie(vap->iv_appie_proberesp, ireq);
  645         case IEEE80211_FC0_SUBTYPE_ASSOC_RESP:
  646                 return getappie(vap->iv_appie_assocresp, ireq);
  647         case IEEE80211_FC0_SUBTYPE_PROBE_REQ:
  648                 return getappie(vap->iv_appie_probereq, ireq);
  649         case IEEE80211_FC0_SUBTYPE_ASSOC_REQ:
  650                 return getappie(vap->iv_appie_assocreq, ireq);
  651         case IEEE80211_FC0_SUBTYPE_BEACON|IEEE80211_FC0_SUBTYPE_PROBE_RESP:
  652                 return getappie(vap->iv_appie_wpa, ireq);
  653         }
  654         return EINVAL;
  655 }
  656 
  657 static int
  658 ieee80211_ioctl_getregdomain(struct ieee80211vap *vap,
  659         const struct ieee80211req *ireq)
  660 {
  661         struct ieee80211com *ic = vap->iv_ic;
  662 
  663         if (ireq->i_len != sizeof(ic->ic_regdomain))
  664                 return EINVAL;
  665         return copyout(&ic->ic_regdomain, ireq->i_data,
  666             sizeof(ic->ic_regdomain));
  667 }
  668 
  669 static int
  670 ieee80211_ioctl_getroam(struct ieee80211vap *vap,
  671         const struct ieee80211req *ireq)
  672 {
  673         size_t len = ireq->i_len;
  674         /* NB: accept short requests for backwards compat */
  675         if (len > sizeof(vap->iv_roamparms))
  676                 len = sizeof(vap->iv_roamparms);
  677         return copyout(vap->iv_roamparms, ireq->i_data, len);
  678 }
  679 
  680 static int
  681 ieee80211_ioctl_gettxparams(struct ieee80211vap *vap,
  682         const struct ieee80211req *ireq)
  683 {
  684         size_t len = ireq->i_len;
  685         /* NB: accept short requests for backwards compat */
  686         if (len > sizeof(vap->iv_txparms))
  687                 len = sizeof(vap->iv_txparms);
  688         return copyout(vap->iv_txparms, ireq->i_data, len);
  689 }
  690 
  691 static int
  692 ieee80211_ioctl_getdevcaps(struct ieee80211com *ic,
  693         const struct ieee80211req *ireq)
  694 {
  695         struct ieee80211_devcaps_req *dc;
  696         struct ieee80211req_chaninfo *ci;
  697         int maxchans, error;
  698 
  699         maxchans = 1 + ((ireq->i_len - sizeof(struct ieee80211_devcaps_req)) /
  700             sizeof(struct ieee80211_channel));
  701         /* NB: require 1 so we know ic_nchans is accessible */
  702         if (maxchans < 1)
  703                 return EINVAL;
  704         /* constrain max request size, 2K channels is ~24Kbytes */
  705         if (maxchans > 2048)
  706                 maxchans = 2048;
  707         dc = (struct ieee80211_devcaps_req *)
  708             IEEE80211_MALLOC(IEEE80211_DEVCAPS_SIZE(maxchans), M_TEMP,
  709             IEEE80211_M_NOWAIT | IEEE80211_M_ZERO);
  710         if (dc == NULL)
  711                 return ENOMEM;
  712         dc->dc_drivercaps = ic->ic_caps;
  713         dc->dc_cryptocaps = ic->ic_cryptocaps;
  714         dc->dc_htcaps = ic->ic_htcaps;
  715         dc->dc_vhtcaps = ic->ic_vhtcaps;
  716         ci = &dc->dc_chaninfo;
  717         ic->ic_getradiocaps(ic, maxchans, &ci->ic_nchans, ci->ic_chans);
  718         KASSERT(ci->ic_nchans <= maxchans,
  719             ("nchans %d maxchans %d", ci->ic_nchans, maxchans));
  720         ieee80211_sort_channels(ci->ic_chans, ci->ic_nchans);
  721         error = copyout(dc, ireq->i_data, IEEE80211_DEVCAPS_SPACE(dc));
  722         IEEE80211_FREE(dc, M_TEMP);
  723         return error;
  724 }
  725 
  726 static int
  727 ieee80211_ioctl_getstavlan(struct ieee80211vap *vap, struct ieee80211req *ireq)
  728 {
  729         struct ieee80211_node *ni;
  730         struct ieee80211req_sta_vlan vlan;
  731         int error;
  732 
  733         if (ireq->i_len != sizeof(vlan))
  734                 return EINVAL;
  735         error = copyin(ireq->i_data, &vlan, sizeof(vlan));
  736         if (error != 0)
  737                 return error;
  738         if (!IEEE80211_ADDR_EQ(vlan.sv_macaddr, zerobssid)) {
  739                 ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap,
  740                     vlan.sv_macaddr);
  741                 if (ni == NULL)
  742                         return ENOENT;
  743         } else
  744                 ni = ieee80211_ref_node(vap->iv_bss);
  745         vlan.sv_vlan = ni->ni_vlan;
  746         error = copyout(&vlan, ireq->i_data, sizeof(vlan));
  747         ieee80211_free_node(ni);
  748         return error;
  749 }
  750 
  751 /*
  752  * Dummy ioctl get handler so the linker set is defined.
  753  */
  754 static int
  755 dummy_ioctl_get(struct ieee80211vap *vap, struct ieee80211req *ireq)
  756 {
  757         return ENOSYS;
  758 }
  759 IEEE80211_IOCTL_GET(dummy, dummy_ioctl_get);
  760 
  761 static int
  762 ieee80211_ioctl_getdefault(struct ieee80211vap *vap, struct ieee80211req *ireq)
  763 {
  764         ieee80211_ioctl_getfunc * const *get;
  765         int error;
  766 
  767         SET_FOREACH(get, ieee80211_ioctl_getset) {
  768                 error = (*get)(vap, ireq);
  769                 if (error != ENOSYS)
  770                         return error;
  771         }
  772         return EINVAL;
  773 }
  774 
  775 static int
  776 ieee80211_ioctl_get80211(struct ieee80211vap *vap, u_long cmd,
  777     struct ieee80211req *ireq)
  778 {
  779 #define MS(_v, _f)      (((_v) & _f) >> _f##_S)
  780         struct ieee80211com *ic = vap->iv_ic;
  781         u_int kid, len;
  782         uint8_t tmpkey[IEEE80211_KEYBUF_SIZE];
  783         char tmpssid[IEEE80211_NWID_LEN];
  784         int error = 0;
  785 
  786         switch (ireq->i_type) {
  787         case IEEE80211_IOC_SSID:
  788                 switch (vap->iv_state) {
  789                 case IEEE80211_S_INIT:
  790                 case IEEE80211_S_SCAN:
  791                         ireq->i_len = vap->iv_des_ssid[0].len;
  792                         memcpy(tmpssid, vap->iv_des_ssid[0].ssid, ireq->i_len);
  793                         break;
  794                 default:
  795                         ireq->i_len = vap->iv_bss->ni_esslen;
  796                         memcpy(tmpssid, vap->iv_bss->ni_essid, ireq->i_len);
  797                         break;
  798                 }
  799                 error = copyout(tmpssid, ireq->i_data, ireq->i_len);
  800                 break;
  801         case IEEE80211_IOC_NUMSSIDS:
  802                 ireq->i_val = 1;
  803                 break;
  804         case IEEE80211_IOC_WEP:
  805                 if ((vap->iv_flags & IEEE80211_F_PRIVACY) == 0)
  806                         ireq->i_val = IEEE80211_WEP_OFF;
  807                 else if (vap->iv_flags & IEEE80211_F_DROPUNENC)
  808                         ireq->i_val = IEEE80211_WEP_ON;
  809                 else
  810                         ireq->i_val = IEEE80211_WEP_MIXED;
  811                 break;
  812         case IEEE80211_IOC_WEPKEY:
  813                 kid = (u_int) ireq->i_val;
  814                 if (kid >= IEEE80211_WEP_NKID)
  815                         return EINVAL;
  816                 len = (u_int) vap->iv_nw_keys[kid].wk_keylen;
  817                 /* NB: only root can read WEP keys */
  818                 if (priv_check(curthread, PRIV_NET80211_GETKEY) == 0) {
  819                         bcopy(vap->iv_nw_keys[kid].wk_key, tmpkey, len);
  820                 } else {
  821                         bzero(tmpkey, len);
  822                 }
  823                 ireq->i_len = len;
  824                 error = copyout(tmpkey, ireq->i_data, len);
  825                 break;
  826         case IEEE80211_IOC_NUMWEPKEYS:
  827                 ireq->i_val = IEEE80211_WEP_NKID;
  828                 break;
  829         case IEEE80211_IOC_WEPTXKEY:
  830                 ireq->i_val = vap->iv_def_txkey;
  831                 break;
  832         case IEEE80211_IOC_AUTHMODE:
  833                 if (vap->iv_flags & IEEE80211_F_WPA)
  834                         ireq->i_val = IEEE80211_AUTH_WPA;
  835                 else
  836                         ireq->i_val = vap->iv_bss->ni_authmode;
  837                 break;
  838         case IEEE80211_IOC_CHANNEL:
  839                 ireq->i_val = ieee80211_chan2ieee(ic, ic->ic_curchan);
  840                 break;
  841         case IEEE80211_IOC_POWERSAVE:
  842                 if (vap->iv_flags & IEEE80211_F_PMGTON)
  843                         ireq->i_val = IEEE80211_POWERSAVE_ON;
  844                 else
  845                         ireq->i_val = IEEE80211_POWERSAVE_OFF;
  846                 break;
  847         case IEEE80211_IOC_POWERSAVESLEEP:
  848                 ireq->i_val = ic->ic_lintval;
  849                 break;
  850         case IEEE80211_IOC_RTSTHRESHOLD:
  851                 ireq->i_val = vap->iv_rtsthreshold;
  852                 break;
  853         case IEEE80211_IOC_PROTMODE:
  854                 ireq->i_val = ic->ic_protmode;
  855                 break;
  856         case IEEE80211_IOC_TXPOWER:
  857                 /*
  858                  * Tx power limit is the min of max regulatory
  859                  * power, any user-set limit, and the max the
  860                  * radio can do.
  861                  *
  862                  * TODO: methodize this
  863                  */
  864                 ireq->i_val = 2*ic->ic_curchan->ic_maxregpower;
  865                 if (ireq->i_val > ic->ic_txpowlimit)
  866                         ireq->i_val = ic->ic_txpowlimit;
  867                 if (ireq->i_val > ic->ic_curchan->ic_maxpower)
  868                         ireq->i_val = ic->ic_curchan->ic_maxpower;
  869                 break;
  870         case IEEE80211_IOC_WPA:
  871                 switch (vap->iv_flags & IEEE80211_F_WPA) {
  872                 case IEEE80211_F_WPA1:
  873                         ireq->i_val = 1;
  874                         break;
  875                 case IEEE80211_F_WPA2:
  876                         ireq->i_val = 2;
  877                         break;
  878                 case IEEE80211_F_WPA1 | IEEE80211_F_WPA2:
  879                         ireq->i_val = 3;
  880                         break;
  881                 default:
  882                         ireq->i_val = 0;
  883                         break;
  884                 }
  885                 break;
  886         case IEEE80211_IOC_CHANLIST:
  887                 error = ieee80211_ioctl_getchanlist(vap, ireq);
  888                 break;
  889         case IEEE80211_IOC_ROAMING:
  890                 ireq->i_val = vap->iv_roaming;
  891                 break;
  892         case IEEE80211_IOC_PRIVACY:
  893                 ireq->i_val = (vap->iv_flags & IEEE80211_F_PRIVACY) != 0;
  894                 break;
  895         case IEEE80211_IOC_DROPUNENCRYPTED:
  896                 ireq->i_val = (vap->iv_flags & IEEE80211_F_DROPUNENC) != 0;
  897                 break;
  898         case IEEE80211_IOC_COUNTERMEASURES:
  899                 ireq->i_val = (vap->iv_flags & IEEE80211_F_COUNTERM) != 0;
  900                 break;
  901         case IEEE80211_IOC_WME:
  902                 ireq->i_val = (vap->iv_flags & IEEE80211_F_WME) != 0;
  903                 break;
  904         case IEEE80211_IOC_HIDESSID:
  905                 ireq->i_val = (vap->iv_flags & IEEE80211_F_HIDESSID) != 0;
  906                 break;
  907         case IEEE80211_IOC_APBRIDGE:
  908                 ireq->i_val = (vap->iv_flags & IEEE80211_F_NOBRIDGE) == 0;
  909                 break;
  910         case IEEE80211_IOC_WPAKEY:
  911                 error = ieee80211_ioctl_getkey(vap, ireq);
  912                 break;
  913         case IEEE80211_IOC_CHANINFO:
  914                 error = ieee80211_ioctl_getchaninfo(vap, ireq);
  915                 break;
  916         case IEEE80211_IOC_BSSID:
  917                 if (ireq->i_len != IEEE80211_ADDR_LEN)
  918                         return EINVAL;
  919                 if (vap->iv_state == IEEE80211_S_RUN || vap->iv_state == IEEE80211_S_SLEEP) {
  920                         error = copyout(vap->iv_opmode == IEEE80211_M_WDS ?
  921                             vap->iv_bss->ni_macaddr : vap->iv_bss->ni_bssid,
  922                             ireq->i_data, ireq->i_len);
  923                 } else
  924                         error = copyout(vap->iv_des_bssid, ireq->i_data,
  925                             ireq->i_len);
  926                 break;
  927         case IEEE80211_IOC_WPAIE:
  928         case IEEE80211_IOC_WPAIE2:
  929                 error = ieee80211_ioctl_getwpaie(vap, ireq, ireq->i_type);
  930                 break;
  931         case IEEE80211_IOC_SCAN_RESULTS:
  932                 error = ieee80211_ioctl_getscanresults(vap, ireq);
  933                 break;
  934         case IEEE80211_IOC_STA_STATS:
  935                 error = ieee80211_ioctl_getstastats(vap, ireq);
  936                 break;
  937         case IEEE80211_IOC_TXPOWMAX:
  938                 ireq->i_val = vap->iv_bss->ni_txpower;
  939                 break;
  940         case IEEE80211_IOC_STA_TXPOW:
  941                 error = ieee80211_ioctl_getstatxpow(vap, ireq);
  942                 break;
  943         case IEEE80211_IOC_STA_INFO:
  944                 error = ieee80211_ioctl_getstainfo(vap, ireq);
  945                 break;
  946         case IEEE80211_IOC_WME_CWMIN:           /* WME: CWmin */
  947         case IEEE80211_IOC_WME_CWMAX:           /* WME: CWmax */
  948         case IEEE80211_IOC_WME_AIFS:            /* WME: AIFS */
  949         case IEEE80211_IOC_WME_TXOPLIMIT:       /* WME: txops limit */
  950         case IEEE80211_IOC_WME_ACM:             /* WME: ACM (bss only) */
  951         case IEEE80211_IOC_WME_ACKPOLICY:       /* WME: ACK policy (!bss only) */
  952                 error = ieee80211_ioctl_getwmeparam(vap, ireq);
  953                 break;
  954         case IEEE80211_IOC_DTIM_PERIOD:
  955                 ireq->i_val = vap->iv_dtim_period;
  956                 break;
  957         case IEEE80211_IOC_BEACON_INTERVAL:
  958                 /* NB: get from ic_bss for station mode */
  959                 ireq->i_val = vap->iv_bss->ni_intval;
  960                 break;
  961         case IEEE80211_IOC_PUREG:
  962                 ireq->i_val = (vap->iv_flags & IEEE80211_F_PUREG) != 0;
  963                 break;
  964         case IEEE80211_IOC_QUIET:
  965                 ireq->i_val = vap->iv_quiet;
  966                 break;
  967         case IEEE80211_IOC_QUIET_COUNT:
  968                 ireq->i_val = vap->iv_quiet_count;
  969                 break;
  970         case IEEE80211_IOC_QUIET_PERIOD:
  971                 ireq->i_val = vap->iv_quiet_period;
  972                 break;
  973         case IEEE80211_IOC_QUIET_DUR:
  974                 ireq->i_val = vap->iv_quiet_duration;
  975                 break;
  976         case IEEE80211_IOC_QUIET_OFFSET:
  977                 ireq->i_val = vap->iv_quiet_offset;
  978                 break;
  979         case IEEE80211_IOC_BGSCAN:
  980                 ireq->i_val = (vap->iv_flags & IEEE80211_F_BGSCAN) != 0;
  981                 break;
  982         case IEEE80211_IOC_BGSCAN_IDLE:
  983                 ireq->i_val = vap->iv_bgscanidle*hz/1000;       /* ms */
  984                 break;
  985         case IEEE80211_IOC_BGSCAN_INTERVAL:
  986                 ireq->i_val = vap->iv_bgscanintvl/hz;           /* seconds */
  987                 break;
  988         case IEEE80211_IOC_SCANVALID:
  989                 ireq->i_val = vap->iv_scanvalid/hz;             /* seconds */
  990                 break;
  991         case IEEE80211_IOC_FRAGTHRESHOLD:
  992                 ireq->i_val = vap->iv_fragthreshold;
  993                 break;
  994         case IEEE80211_IOC_MACCMD:
  995                 error = ieee80211_ioctl_getmaccmd(vap, ireq);
  996                 break;
  997         case IEEE80211_IOC_BURST:
  998                 ireq->i_val = (vap->iv_flags & IEEE80211_F_BURST) != 0;
  999                 break;
 1000         case IEEE80211_IOC_BMISSTHRESHOLD:
 1001                 ireq->i_val = vap->iv_bmissthreshold;
 1002                 break;
 1003         case IEEE80211_IOC_CURCHAN:
 1004                 error = ieee80211_ioctl_getcurchan(vap, ireq);
 1005                 break;
 1006         case IEEE80211_IOC_SHORTGI:
 1007                 ireq->i_val = 0;
 1008                 if (vap->iv_flags_ht & IEEE80211_FHT_SHORTGI20)
 1009                         ireq->i_val |= IEEE80211_HTCAP_SHORTGI20;
 1010                 if (vap->iv_flags_ht & IEEE80211_FHT_SHORTGI40)
 1011                         ireq->i_val |= IEEE80211_HTCAP_SHORTGI40;
 1012                 break;
 1013         case IEEE80211_IOC_AMPDU:
 1014                 ireq->i_val = 0;
 1015                 if (vap->iv_flags_ht & IEEE80211_FHT_AMPDU_TX)
 1016                         ireq->i_val |= 1;
 1017                 if (vap->iv_flags_ht & IEEE80211_FHT_AMPDU_RX)
 1018                         ireq->i_val |= 2;
 1019                 break;
 1020         case IEEE80211_IOC_AMPDU_LIMIT:
 1021                 /* XXX TODO: make this a per-node thing; and leave this as global */
 1022                 if (vap->iv_opmode == IEEE80211_M_HOSTAP)
 1023                         ireq->i_val = vap->iv_ampdu_rxmax;
 1024                 else if (vap->iv_state == IEEE80211_S_RUN || vap->iv_state == IEEE80211_S_SLEEP)
 1025                         /*
 1026                          * XXX TODO: this isn't completely correct, as we've
 1027                          * negotiated the higher of the two.
 1028                          */
 1029                         ireq->i_val = MS(vap->iv_bss->ni_htparam,
 1030                             IEEE80211_HTCAP_MAXRXAMPDU);
 1031                 else
 1032                         ireq->i_val = vap->iv_ampdu_limit;
 1033                 break;
 1034         case IEEE80211_IOC_AMPDU_DENSITY:
 1035                 /* XXX TODO: make this a per-node thing; and leave this as global */
 1036                 if (vap->iv_opmode == IEEE80211_M_STA &&
 1037                     (vap->iv_state == IEEE80211_S_RUN || vap->iv_state == IEEE80211_S_SLEEP))
 1038                         /*
 1039                          * XXX TODO: this isn't completely correct, as we've
 1040                          * negotiated the higher of the two.
 1041                          */
 1042                         ireq->i_val = MS(vap->iv_bss->ni_htparam,
 1043                             IEEE80211_HTCAP_MPDUDENSITY);
 1044                 else
 1045                         ireq->i_val = vap->iv_ampdu_density;
 1046                 break;
 1047         case IEEE80211_IOC_AMSDU:
 1048                 ireq->i_val = 0;
 1049                 if (vap->iv_flags_ht & IEEE80211_FHT_AMSDU_TX)
 1050                         ireq->i_val |= 1;
 1051                 if (vap->iv_flags_ht & IEEE80211_FHT_AMSDU_RX)
 1052                         ireq->i_val |= 2;
 1053                 break;
 1054         case IEEE80211_IOC_AMSDU_LIMIT:
 1055                 ireq->i_val = vap->iv_amsdu_limit;      /* XXX truncation? */
 1056                 break;
 1057         case IEEE80211_IOC_PUREN:
 1058                 ireq->i_val = (vap->iv_flags_ht & IEEE80211_FHT_PUREN) != 0;
 1059                 break;
 1060         case IEEE80211_IOC_DOTH:
 1061                 ireq->i_val = (vap->iv_flags & IEEE80211_F_DOTH) != 0;
 1062                 break;
 1063         case IEEE80211_IOC_REGDOMAIN:
 1064                 error = ieee80211_ioctl_getregdomain(vap, ireq);
 1065                 break;
 1066         case IEEE80211_IOC_ROAM:
 1067                 error = ieee80211_ioctl_getroam(vap, ireq);
 1068                 break;
 1069         case IEEE80211_IOC_TXPARAMS:
 1070                 error = ieee80211_ioctl_gettxparams(vap, ireq);
 1071                 break;
 1072         case IEEE80211_IOC_HTCOMPAT:
 1073                 ireq->i_val = (vap->iv_flags_ht & IEEE80211_FHT_HTCOMPAT) != 0;
 1074                 break;
 1075         case IEEE80211_IOC_DWDS:
 1076                 ireq->i_val = (vap->iv_flags & IEEE80211_F_DWDS) != 0;
 1077                 break;
 1078         case IEEE80211_IOC_INACTIVITY:
 1079                 ireq->i_val = (vap->iv_flags_ext & IEEE80211_FEXT_INACT) != 0;
 1080                 break;
 1081         case IEEE80211_IOC_APPIE:
 1082                 error = ieee80211_ioctl_getappie(vap, ireq);
 1083                 break;
 1084         case IEEE80211_IOC_WPS:
 1085                 ireq->i_val = (vap->iv_flags_ext & IEEE80211_FEXT_WPS) != 0;
 1086                 break;
 1087         case IEEE80211_IOC_TSN:
 1088                 ireq->i_val = (vap->iv_flags_ext & IEEE80211_FEXT_TSN) != 0;
 1089                 break;
 1090         case IEEE80211_IOC_DFS:
 1091                 ireq->i_val = (vap->iv_flags_ext & IEEE80211_FEXT_DFS) != 0;
 1092                 break;
 1093         case IEEE80211_IOC_DOTD:
 1094                 ireq->i_val = (vap->iv_flags_ext & IEEE80211_FEXT_DOTD) != 0;
 1095                 break;
 1096         case IEEE80211_IOC_DEVCAPS:
 1097                 error = ieee80211_ioctl_getdevcaps(ic, ireq);
 1098                 break;
 1099         case IEEE80211_IOC_HTPROTMODE:
 1100                 ireq->i_val = ic->ic_htprotmode;
 1101                 break;
 1102         case IEEE80211_IOC_HTCONF:
 1103                 if (vap->iv_flags_ht & IEEE80211_FHT_HT) {
 1104                         ireq->i_val = 1;
 1105                         if (vap->iv_flags_ht & IEEE80211_FHT_USEHT40)
 1106                                 ireq->i_val |= 2;
 1107                 } else
 1108                         ireq->i_val = 0;
 1109                 break;
 1110         case IEEE80211_IOC_STA_VLAN:
 1111                 error = ieee80211_ioctl_getstavlan(vap, ireq);
 1112                 break;
 1113         case IEEE80211_IOC_SMPS:
 1114                 if (vap->iv_opmode == IEEE80211_M_STA &&
 1115                     (vap->iv_state == IEEE80211_S_RUN || vap->iv_state == IEEE80211_S_SLEEP)) {
 1116                         if (vap->iv_bss->ni_flags & IEEE80211_NODE_MIMO_RTS)
 1117                                 ireq->i_val = IEEE80211_HTCAP_SMPS_DYNAMIC;
 1118                         else if (vap->iv_bss->ni_flags & IEEE80211_NODE_MIMO_PS)
 1119                                 ireq->i_val = IEEE80211_HTCAP_SMPS_ENA;
 1120                         else
 1121                                 ireq->i_val = IEEE80211_HTCAP_SMPS_OFF;
 1122                 } else
 1123                         ireq->i_val = vap->iv_htcaps & IEEE80211_HTCAP_SMPS;
 1124                 break;
 1125         case IEEE80211_IOC_RIFS:
 1126                 if (vap->iv_opmode == IEEE80211_M_STA &&
 1127                     (vap->iv_state == IEEE80211_S_RUN || vap->iv_state == IEEE80211_S_SLEEP))
 1128                         ireq->i_val =
 1129                             (vap->iv_bss->ni_flags & IEEE80211_NODE_RIFS) != 0;
 1130                 else
 1131                         ireq->i_val =
 1132                             (vap->iv_flags_ht & IEEE80211_FHT_RIFS) != 0;
 1133                 break;
 1134         case IEEE80211_IOC_STBC:
 1135                 ireq->i_val = 0;
 1136                 if (vap->iv_flags_ht & IEEE80211_FHT_STBC_TX)
 1137                         ireq->i_val |= 1;
 1138                 if (vap->iv_flags_ht & IEEE80211_FHT_STBC_RX)
 1139                         ireq->i_val |= 2;
 1140                 break;
 1141         case IEEE80211_IOC_LDPC:
 1142                 ireq->i_val = 0;
 1143                 if (vap->iv_flags_ht & IEEE80211_FHT_LDPC_TX)
 1144                         ireq->i_val |= 1;
 1145                 if (vap->iv_flags_ht & IEEE80211_FHT_LDPC_RX)
 1146                         ireq->i_val |= 2;
 1147                 break;
 1148 
 1149         /* VHT */
 1150         case IEEE80211_IOC_VHTCONF:
 1151                 ireq->i_val = 0;
 1152                 if (vap->iv_flags_vht & IEEE80211_FVHT_VHT)
 1153                         ireq->i_val |= 1;
 1154                 if (vap->iv_flags_vht & IEEE80211_FVHT_USEVHT40)
 1155                         ireq->i_val |= 2;
 1156                 if (vap->iv_flags_vht & IEEE80211_FVHT_USEVHT80)
 1157                         ireq->i_val |= 4;
 1158                 if (vap->iv_flags_vht & IEEE80211_FVHT_USEVHT80P80)
 1159                         ireq->i_val |= 8;
 1160                 if (vap->iv_flags_vht & IEEE80211_FVHT_USEVHT160)
 1161                         ireq->i_val |= 16;
 1162                 break;
 1163 
 1164         default:
 1165                 error = ieee80211_ioctl_getdefault(vap, ireq);
 1166                 break;
 1167         }
 1168         return error;
 1169 #undef MS
 1170 }
 1171 
 1172 static int
 1173 ieee80211_ioctl_setkey(struct ieee80211vap *vap, struct ieee80211req *ireq)
 1174 {
 1175         struct ieee80211req_key ik;
 1176         struct ieee80211_node *ni;
 1177         struct ieee80211_key *wk;
 1178         uint16_t kid;
 1179         int error, i;
 1180 
 1181         if (ireq->i_len != sizeof(ik))
 1182                 return EINVAL;
 1183         error = copyin(ireq->i_data, &ik, sizeof(ik));
 1184         if (error)
 1185                 return error;
 1186         /* NB: cipher support is verified by ieee80211_crypt_newkey */
 1187         /* NB: this also checks ik->ik_keylen > sizeof(wk->wk_key) */
 1188         if (ik.ik_keylen > sizeof(ik.ik_keydata))
 1189                 return E2BIG;
 1190         kid = ik.ik_keyix;
 1191         if (kid == IEEE80211_KEYIX_NONE) {
 1192                 /* XXX unicast keys currently must be tx/rx */
 1193                 if (ik.ik_flags != (IEEE80211_KEY_XMIT | IEEE80211_KEY_RECV))
 1194                         return EINVAL;
 1195                 if (vap->iv_opmode == IEEE80211_M_STA) {
 1196                         ni = ieee80211_ref_node(vap->iv_bss);
 1197                         if (!IEEE80211_ADDR_EQ(ik.ik_macaddr, ni->ni_bssid)) {
 1198                                 ieee80211_free_node(ni);
 1199                                 return EADDRNOTAVAIL;
 1200                         }
 1201                 } else {
 1202                         ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap,
 1203                                 ik.ik_macaddr);
 1204                         if (ni == NULL)
 1205                                 return ENOENT;
 1206                 }
 1207                 wk = &ni->ni_ucastkey;
 1208         } else {
 1209                 if (kid >= IEEE80211_WEP_NKID)
 1210                         return EINVAL;
 1211                 wk = &vap->iv_nw_keys[kid];
 1212                 /*
 1213                  * Global slots start off w/o any assigned key index.
 1214                  * Force one here for consistency with IEEE80211_IOC_WEPKEY.
 1215                  */
 1216                 if (wk->wk_keyix == IEEE80211_KEYIX_NONE)
 1217                         wk->wk_keyix = kid;
 1218                 ni = NULL;
 1219         }
 1220         error = 0;
 1221         ieee80211_key_update_begin(vap);
 1222         if (ieee80211_crypto_newkey(vap, ik.ik_type, ik.ik_flags, wk)) {
 1223                 wk->wk_keylen = ik.ik_keylen;
 1224                 /* NB: MIC presence is implied by cipher type */
 1225                 if (wk->wk_keylen > IEEE80211_KEYBUF_SIZE)
 1226                         wk->wk_keylen = IEEE80211_KEYBUF_SIZE;
 1227                 for (i = 0; i < IEEE80211_TID_SIZE; i++)
 1228                         wk->wk_keyrsc[i] = ik.ik_keyrsc;
 1229                 wk->wk_keytsc = 0;                      /* new key, reset */
 1230                 memset(wk->wk_key, 0, sizeof(wk->wk_key));
 1231                 memcpy(wk->wk_key, ik.ik_keydata, ik.ik_keylen);
 1232                 IEEE80211_ADDR_COPY(wk->wk_macaddr,
 1233                     ni != NULL ?  ni->ni_macaddr : ik.ik_macaddr);
 1234                 if (!ieee80211_crypto_setkey(vap, wk))
 1235                         error = EIO;
 1236                 else if ((ik.ik_flags & IEEE80211_KEY_DEFAULT))
 1237                         /*
 1238                          * Inform the driver that this is the default
 1239                          * transmit key.  Now, ideally we'd just set
 1240                          * a flag in the key update that would
 1241                          * say "yes, we're the default key", but
 1242                          * that currently isn't the way the ioctl ->
 1243                          * key interface works.
 1244                          */
 1245                         ieee80211_crypto_set_deftxkey(vap, kid);
 1246         } else
 1247                 error = ENXIO;
 1248         ieee80211_key_update_end(vap);
 1249         if (ni != NULL)
 1250                 ieee80211_free_node(ni);
 1251         return error;
 1252 }
 1253 
 1254 static int
 1255 ieee80211_ioctl_delkey(struct ieee80211vap *vap, struct ieee80211req *ireq)
 1256 {
 1257         struct ieee80211req_del_key dk;
 1258         int kid, error;
 1259 
 1260         if (ireq->i_len != sizeof(dk))
 1261                 return EINVAL;
 1262         error = copyin(ireq->i_data, &dk, sizeof(dk));
 1263         if (error)
 1264                 return error;
 1265         kid = dk.idk_keyix;
 1266         /* XXX uint8_t -> uint16_t */
 1267         if (dk.idk_keyix == (uint8_t) IEEE80211_KEYIX_NONE) {
 1268                 struct ieee80211_node *ni;
 1269 
 1270                 if (vap->iv_opmode == IEEE80211_M_STA) {
 1271                         ni = ieee80211_ref_node(vap->iv_bss);
 1272                         if (!IEEE80211_ADDR_EQ(dk.idk_macaddr, ni->ni_bssid)) {
 1273                                 ieee80211_free_node(ni);
 1274                                 return EADDRNOTAVAIL;
 1275                         }
 1276                 } else {
 1277                         ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap,
 1278                                 dk.idk_macaddr);
 1279                         if (ni == NULL)
 1280                                 return ENOENT;
 1281                 }
 1282                 /* XXX error return */
 1283                 ieee80211_node_delucastkey(ni);
 1284                 ieee80211_free_node(ni);
 1285         } else {
 1286                 if (kid >= IEEE80211_WEP_NKID)
 1287                         return EINVAL;
 1288                 /* XXX error return */
 1289                 ieee80211_crypto_delkey(vap, &vap->iv_nw_keys[kid]);
 1290         }
 1291         return 0;
 1292 }
 1293 
 1294 struct mlmeop {
 1295         struct ieee80211vap *vap;
 1296         int     op;
 1297         int     reason;
 1298 };
 1299 
 1300 static void
 1301 mlmedebug(struct ieee80211vap *vap, const uint8_t mac[IEEE80211_ADDR_LEN],
 1302         int op, int reason)
 1303 {
 1304 #ifdef IEEE80211_DEBUG
 1305         static const struct {
 1306                 int mask;
 1307                 const char *opstr;
 1308         } ops[] = {
 1309                 { 0, "op#0" },
 1310                 { IEEE80211_MSG_IOCTL | IEEE80211_MSG_STATE |
 1311                   IEEE80211_MSG_ASSOC, "assoc" },
 1312                 { IEEE80211_MSG_IOCTL | IEEE80211_MSG_STATE |
 1313                   IEEE80211_MSG_ASSOC, "disassoc" },
 1314                 { IEEE80211_MSG_IOCTL | IEEE80211_MSG_STATE |
 1315                   IEEE80211_MSG_AUTH, "deauth" },
 1316                 { IEEE80211_MSG_IOCTL | IEEE80211_MSG_STATE |
 1317                   IEEE80211_MSG_AUTH, "authorize" },
 1318                 { IEEE80211_MSG_IOCTL | IEEE80211_MSG_STATE |
 1319                   IEEE80211_MSG_AUTH, "unauthorize" },
 1320         };
 1321 
 1322         if (op == IEEE80211_MLME_AUTH) {
 1323                 IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_IOCTL |
 1324                     IEEE80211_MSG_STATE | IEEE80211_MSG_AUTH, mac,
 1325                     "station authenticate %s via MLME (reason: %d (%s))",
 1326                     reason == IEEE80211_STATUS_SUCCESS ? "ACCEPT" : "REJECT",
 1327                     reason, ieee80211_reason_to_string(reason));
 1328         } else if (!(IEEE80211_MLME_ASSOC <= op && op <= IEEE80211_MLME_AUTH)) {
 1329                 IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_ANY, mac,
 1330                     "unknown MLME request %d (reason: %d (%s))", op, reason,
 1331                     ieee80211_reason_to_string(reason));
 1332         } else if (reason == IEEE80211_STATUS_SUCCESS) {
 1333                 IEEE80211_NOTE_MAC(vap, ops[op].mask, mac,
 1334                     "station %s via MLME", ops[op].opstr);
 1335         } else {
 1336                 IEEE80211_NOTE_MAC(vap, ops[op].mask, mac,
 1337                     "station %s via MLME (reason: %d (%s))", ops[op].opstr,
 1338                     reason, ieee80211_reason_to_string(reason));
 1339         }
 1340 #endif /* IEEE80211_DEBUG */
 1341 }
 1342 
 1343 static void
 1344 domlme(void *arg, struct ieee80211_node *ni)
 1345 {
 1346         struct mlmeop *mop = arg;
 1347         struct ieee80211vap *vap = ni->ni_vap;
 1348 
 1349         if (vap != mop->vap)
 1350                 return;
 1351         /*
 1352          * NB: if ni_associd is zero then the node is already cleaned
 1353          * up and we don't need to do this (we're safely holding a
 1354          * reference but should otherwise not modify it's state).
 1355          */ 
 1356         if (ni->ni_associd == 0)
 1357                 return;
 1358         mlmedebug(vap, ni->ni_macaddr, mop->op, mop->reason);
 1359         if (mop->op == IEEE80211_MLME_DEAUTH) {
 1360                 IEEE80211_SEND_MGMT(ni, IEEE80211_FC0_SUBTYPE_DEAUTH,
 1361                     mop->reason);
 1362         } else {
 1363                 IEEE80211_SEND_MGMT(ni, IEEE80211_FC0_SUBTYPE_DISASSOC,
 1364                     mop->reason);
 1365         }
 1366         ieee80211_node_leave(ni);
 1367 }
 1368 
 1369 static int
 1370 setmlme_dropsta(struct ieee80211vap *vap,
 1371         const uint8_t mac[IEEE80211_ADDR_LEN], struct mlmeop *mlmeop)
 1372 {
 1373         struct ieee80211_node_table *nt = &vap->iv_ic->ic_sta;
 1374         struct ieee80211_node *ni;
 1375         int error = 0;
 1376 
 1377         /* NB: the broadcast address means do 'em all */
 1378         if (!IEEE80211_ADDR_EQ(mac, vap->iv_ifp->if_broadcastaddr)) {
 1379                 IEEE80211_NODE_LOCK(nt);
 1380                 ni = ieee80211_find_node_locked(nt, mac);
 1381                 IEEE80211_NODE_UNLOCK(nt);
 1382                 /*
 1383                  * Don't do the node update inside the node
 1384                  * table lock.  This unfortunately causes LORs
 1385                  * with drivers and their TX paths.
 1386                  */
 1387                 if (ni != NULL) {
 1388                         domlme(mlmeop, ni);
 1389                         ieee80211_free_node(ni);
 1390                 } else
 1391                         error = ENOENT;
 1392         } else {
 1393                 ieee80211_iterate_nodes(nt, domlme, mlmeop);
 1394         }
 1395         return error;
 1396 }
 1397 
 1398 static int
 1399 setmlme_common(struct ieee80211vap *vap, int op,
 1400         const uint8_t mac[IEEE80211_ADDR_LEN], int reason)
 1401 {
 1402         struct ieee80211com *ic = vap->iv_ic;
 1403         struct ieee80211_node_table *nt = &ic->ic_sta;
 1404         struct ieee80211_node *ni;
 1405         struct mlmeop mlmeop;
 1406         int error;
 1407 
 1408         error = 0;
 1409         switch (op) {
 1410         case IEEE80211_MLME_DISASSOC:
 1411         case IEEE80211_MLME_DEAUTH:
 1412                 switch (vap->iv_opmode) {
 1413                 case IEEE80211_M_STA:
 1414                         mlmedebug(vap, vap->iv_bss->ni_macaddr, op, reason);
 1415                         /* XXX not quite right */
 1416                         ieee80211_new_state(vap, IEEE80211_S_INIT, reason);
 1417                         break;
 1418                 case IEEE80211_M_HOSTAP:
 1419                         mlmeop.vap = vap;
 1420                         mlmeop.op = op;
 1421                         mlmeop.reason = reason;
 1422                         error = setmlme_dropsta(vap, mac, &mlmeop);
 1423                         break;
 1424                 case IEEE80211_M_WDS:
 1425                         /* XXX user app should send raw frame? */
 1426                         if (op != IEEE80211_MLME_DEAUTH) {
 1427                                 error = EINVAL;
 1428                                 break;
 1429                         }
 1430 #if 0
 1431                         /* XXX accept any address, simplifies user code */
 1432                         if (!IEEE80211_ADDR_EQ(mac, vap->iv_bss->ni_macaddr)) {
 1433                                 error = EINVAL;
 1434                                 break;
 1435                         }
 1436 #endif
 1437                         mlmedebug(vap, vap->iv_bss->ni_macaddr, op, reason);
 1438                         ni = ieee80211_ref_node(vap->iv_bss);
 1439                         IEEE80211_SEND_MGMT(ni,
 1440                             IEEE80211_FC0_SUBTYPE_DEAUTH, reason);
 1441                         ieee80211_free_node(ni);
 1442                         break;
 1443                 case IEEE80211_M_MBSS:
 1444                         IEEE80211_NODE_LOCK(nt);
 1445                         ni = ieee80211_find_node_locked(nt, mac);
 1446                         /*
 1447                          * Don't do the node update inside the node
 1448                          * table lock.  This unfortunately causes LORs
 1449                          * with drivers and their TX paths.
 1450                          */
 1451                         IEEE80211_NODE_UNLOCK(nt);
 1452                         if (ni != NULL) {
 1453                                 ieee80211_node_leave(ni);
 1454                                 ieee80211_free_node(ni);
 1455                         } else {
 1456                                 error = ENOENT;
 1457                         }
 1458                         break;
 1459                 default:
 1460                         error = EINVAL;
 1461                         break;
 1462                 }
 1463                 break;
 1464         case IEEE80211_MLME_AUTHORIZE:
 1465         case IEEE80211_MLME_UNAUTHORIZE:
 1466                 if (vap->iv_opmode != IEEE80211_M_HOSTAP &&
 1467                     vap->iv_opmode != IEEE80211_M_WDS) {
 1468                         error = EINVAL;
 1469                         break;
 1470                 }
 1471                 IEEE80211_NODE_LOCK(nt);
 1472                 ni = ieee80211_find_vap_node_locked(nt, vap, mac);
 1473                 /*
 1474                  * Don't do the node update inside the node
 1475                  * table lock.  This unfortunately causes LORs
 1476                  * with drivers and their TX paths.
 1477                  */
 1478                 IEEE80211_NODE_UNLOCK(nt);
 1479                 if (ni != NULL) {
 1480                         mlmedebug(vap, mac, op, reason);
 1481                         if (op == IEEE80211_MLME_AUTHORIZE)
 1482                                 ieee80211_node_authorize(ni);
 1483                         else
 1484                                 ieee80211_node_unauthorize(ni);
 1485                         ieee80211_free_node(ni);
 1486                 } else
 1487                         error = ENOENT;
 1488                 break;
 1489         case IEEE80211_MLME_AUTH:
 1490                 if (vap->iv_opmode != IEEE80211_M_HOSTAP) {
 1491                         error = EINVAL;
 1492                         break;
 1493                 }
 1494                 IEEE80211_NODE_LOCK(nt);
 1495                 ni = ieee80211_find_vap_node_locked(nt, vap, mac);
 1496                 /*
 1497                  * Don't do the node update inside the node
 1498                  * table lock.  This unfortunately causes LORs
 1499                  * with drivers and their TX paths.
 1500                  */
 1501                 IEEE80211_NODE_UNLOCK(nt);
 1502                 if (ni != NULL) {
 1503                         mlmedebug(vap, mac, op, reason);
 1504                         if (reason == IEEE80211_STATUS_SUCCESS) {
 1505                                 IEEE80211_SEND_MGMT(ni,
 1506                                     IEEE80211_FC0_SUBTYPE_AUTH, 2);
 1507                                 /*
 1508                                  * For shared key auth, just continue the
 1509                                  * exchange.  Otherwise when 802.1x is not in
 1510                                  * use mark the port authorized at this point
 1511                                  * so traffic can flow.
 1512                                  */
 1513                                 if (ni->ni_authmode != IEEE80211_AUTH_8021X &&
 1514                                     ni->ni_challenge == NULL)
 1515                                       ieee80211_node_authorize(ni);
 1516                         } else {
 1517                                 vap->iv_stats.is_rx_acl++;
 1518                                 ieee80211_send_error(ni, ni->ni_macaddr,
 1519                                     IEEE80211_FC0_SUBTYPE_AUTH, 2|(reason<<16));
 1520                                 ieee80211_node_leave(ni);
 1521                         }
 1522                         ieee80211_free_node(ni);
 1523                 } else
 1524                         error = ENOENT;
 1525                 break;
 1526         default:
 1527                 error = EINVAL;
 1528                 break;
 1529         }
 1530         return error;
 1531 }
 1532 
 1533 struct scanlookup {
 1534         const uint8_t *mac;
 1535         int esslen;
 1536         const uint8_t *essid;
 1537         const struct ieee80211_scan_entry *se;
 1538 };
 1539 
 1540 /*
 1541  * Match mac address and any ssid.
 1542  */
 1543 static void
 1544 mlmelookup(void *arg, const struct ieee80211_scan_entry *se)
 1545 {
 1546         struct scanlookup *look = arg;
 1547 
 1548         if (!IEEE80211_ADDR_EQ(look->mac, se->se_macaddr))
 1549                 return;
 1550         if (look->esslen != 0) {
 1551                 if (se->se_ssid[1] != look->esslen)
 1552                         return;
 1553                 if (memcmp(look->essid, se->se_ssid+2, look->esslen))
 1554                         return;
 1555         }
 1556         look->se = se;
 1557 }
 1558 
 1559 static int
 1560 setmlme_assoc_sta(struct ieee80211vap *vap,
 1561         const uint8_t mac[IEEE80211_ADDR_LEN], int ssid_len,
 1562         const uint8_t ssid[IEEE80211_NWID_LEN])
 1563 {
 1564         struct scanlookup lookup;
 1565 
 1566         KASSERT(vap->iv_opmode == IEEE80211_M_STA,
 1567             ("expected opmode STA not %s",
 1568             ieee80211_opmode_name[vap->iv_opmode]));
 1569 
 1570         /* NB: this is racey if roaming is !manual */
 1571         lookup.se = NULL;
 1572         lookup.mac = mac;
 1573         lookup.esslen = ssid_len;
 1574         lookup.essid = ssid;
 1575         ieee80211_scan_iterate(vap, mlmelookup, &lookup);
 1576         if (lookup.se == NULL)
 1577                 return ENOENT;
 1578         mlmedebug(vap, mac, IEEE80211_MLME_ASSOC, 0);
 1579         if (!ieee80211_sta_join(vap, lookup.se->se_chan, lookup.se))
 1580                 return EIO;             /* XXX unique but could be better */
 1581         return 0;
 1582 }
 1583 
 1584 static int
 1585 setmlme_assoc_adhoc(struct ieee80211vap *vap,
 1586         const uint8_t mac[IEEE80211_ADDR_LEN], int ssid_len,
 1587         const uint8_t ssid[IEEE80211_NWID_LEN])
 1588 {
 1589         struct ieee80211_scan_req *sr;
 1590         int error;
 1591 
 1592         KASSERT(vap->iv_opmode == IEEE80211_M_IBSS ||
 1593             vap->iv_opmode == IEEE80211_M_AHDEMO,
 1594             ("expected opmode IBSS or AHDEMO not %s",
 1595             ieee80211_opmode_name[vap->iv_opmode]));
 1596 
 1597         if (ssid_len == 0)
 1598                 return EINVAL;
 1599 
 1600         sr = IEEE80211_MALLOC(sizeof(*sr), M_TEMP,
 1601              IEEE80211_M_NOWAIT | IEEE80211_M_ZERO);
 1602         if (sr == NULL)
 1603                 return ENOMEM;
 1604 
 1605         /* NB: IEEE80211_IOC_SSID call missing for ap_scan=2. */
 1606         memset(vap->iv_des_ssid[0].ssid, 0, IEEE80211_NWID_LEN);
 1607         vap->iv_des_ssid[0].len = ssid_len;
 1608         memcpy(vap->iv_des_ssid[0].ssid, ssid, ssid_len);
 1609         vap->iv_des_nssid = 1;
 1610 
 1611         sr->sr_flags = IEEE80211_IOC_SCAN_ACTIVE | IEEE80211_IOC_SCAN_ONCE;
 1612         sr->sr_duration = IEEE80211_IOC_SCAN_FOREVER;
 1613         memcpy(sr->sr_ssid[0].ssid, ssid, ssid_len);
 1614         sr->sr_ssid[0].len = ssid_len;
 1615         sr->sr_nssid = 1;
 1616 
 1617         error = ieee80211_scanreq(vap, sr);
 1618 
 1619         IEEE80211_FREE(sr, M_TEMP);
 1620         return error;
 1621 }
 1622 
 1623 static int
 1624 ieee80211_ioctl_setmlme(struct ieee80211vap *vap, struct ieee80211req *ireq)
 1625 {
 1626         struct ieee80211req_mlme mlme;
 1627         int error;
 1628 
 1629         if (ireq->i_len != sizeof(mlme))
 1630                 return EINVAL;
 1631         error = copyin(ireq->i_data, &mlme, sizeof(mlme));
 1632         if (error)
 1633                 return error;
 1634         if  (vap->iv_opmode == IEEE80211_M_STA &&
 1635             mlme.im_op == IEEE80211_MLME_ASSOC)
 1636                 return setmlme_assoc_sta(vap, mlme.im_macaddr,
 1637                     vap->iv_des_ssid[0].len, vap->iv_des_ssid[0].ssid);
 1638         else if ((vap->iv_opmode == IEEE80211_M_IBSS || 
 1639             vap->iv_opmode == IEEE80211_M_AHDEMO) && 
 1640             mlme.im_op == IEEE80211_MLME_ASSOC)
 1641                 return setmlme_assoc_adhoc(vap, mlme.im_macaddr,
 1642                     mlme.im_ssid_len, mlme.im_ssid);
 1643         else
 1644                 return setmlme_common(vap, mlme.im_op,
 1645                     mlme.im_macaddr, mlme.im_reason);
 1646 }
 1647 
 1648 static int
 1649 ieee80211_ioctl_macmac(struct ieee80211vap *vap, struct ieee80211req *ireq)
 1650 {
 1651         uint8_t mac[IEEE80211_ADDR_LEN];
 1652         const struct ieee80211_aclator *acl = vap->iv_acl;
 1653         int error;
 1654 
 1655         if (ireq->i_len != sizeof(mac))
 1656                 return EINVAL;
 1657         error = copyin(ireq->i_data, mac, ireq->i_len);
 1658         if (error)
 1659                 return error;
 1660         if (acl == NULL) {
 1661                 acl = ieee80211_aclator_get("mac");
 1662                 if (acl == NULL || !acl->iac_attach(vap))
 1663                         return EINVAL;
 1664                 vap->iv_acl = acl;
 1665         }
 1666         if (ireq->i_type == IEEE80211_IOC_ADDMAC)
 1667                 acl->iac_add(vap, mac);
 1668         else
 1669                 acl->iac_remove(vap, mac);
 1670         return 0;
 1671 }
 1672 
 1673 static int
 1674 ieee80211_ioctl_setmaccmd(struct ieee80211vap *vap, struct ieee80211req *ireq)
 1675 {
 1676         const struct ieee80211_aclator *acl = vap->iv_acl;
 1677 
 1678         switch (ireq->i_val) {
 1679         case IEEE80211_MACCMD_POLICY_OPEN:
 1680         case IEEE80211_MACCMD_POLICY_ALLOW:
 1681         case IEEE80211_MACCMD_POLICY_DENY:
 1682         case IEEE80211_MACCMD_POLICY_RADIUS:
 1683                 if (acl == NULL) {
 1684                         acl = ieee80211_aclator_get("mac");
 1685                         if (acl == NULL || !acl->iac_attach(vap))
 1686                                 return EINVAL;
 1687                         vap->iv_acl = acl;
 1688                 }
 1689                 acl->iac_setpolicy(vap, ireq->i_val);
 1690                 break;
 1691         case IEEE80211_MACCMD_FLUSH:
 1692                 if (acl != NULL)
 1693                         acl->iac_flush(vap);
 1694                 /* NB: silently ignore when not in use */
 1695                 break;
 1696         case IEEE80211_MACCMD_DETACH:
 1697                 if (acl != NULL) {
 1698                         vap->iv_acl = NULL;
 1699                         acl->iac_detach(vap);
 1700                 }
 1701                 break;
 1702         default:
 1703                 if (acl == NULL)
 1704                         return EINVAL;
 1705                 else
 1706                         return acl->iac_setioctl(vap, ireq);
 1707         }
 1708         return 0;
 1709 }
 1710 
 1711 static int
 1712 ieee80211_ioctl_setchanlist(struct ieee80211vap *vap, struct ieee80211req *ireq)
 1713 {
 1714         struct ieee80211com *ic = vap->iv_ic;
 1715         uint8_t *chanlist, *list;
 1716         int i, nchan, maxchan, error;
 1717 
 1718         if (ireq->i_len > sizeof(ic->ic_chan_active))
 1719                 ireq->i_len = sizeof(ic->ic_chan_active);
 1720         list = IEEE80211_MALLOC(ireq->i_len + IEEE80211_CHAN_BYTES, M_TEMP,
 1721             IEEE80211_M_NOWAIT | IEEE80211_M_ZERO);
 1722         if (list == NULL)
 1723                 return ENOMEM;
 1724         error = copyin(ireq->i_data, list, ireq->i_len);
 1725         if (error) {
 1726                 IEEE80211_FREE(list, M_TEMP);
 1727                 return error;
 1728         }
 1729         nchan = 0;
 1730         chanlist = list + ireq->i_len;          /* NB: zero'd already */
 1731         maxchan = ireq->i_len * NBBY;
 1732         for (i = 0; i < ic->ic_nchans; i++) {
 1733                 const struct ieee80211_channel *c = &ic->ic_channels[i];
 1734                 /*
 1735                  * Calculate the intersection of the user list and the
 1736                  * available channels so users can do things like specify
 1737                  * 1-255 to get all available channels.
 1738                  */
 1739                 if (c->ic_ieee < maxchan && isset(list, c->ic_ieee)) {
 1740                         setbit(chanlist, c->ic_ieee);
 1741                         nchan++;
 1742                 }
 1743         }
 1744         if (nchan == 0) {
 1745                 IEEE80211_FREE(list, M_TEMP);
 1746                 return EINVAL;
 1747         }
 1748         if (ic->ic_bsschan != IEEE80211_CHAN_ANYC &&    /* XXX */
 1749             isclr(chanlist, ic->ic_bsschan->ic_ieee))
 1750                 ic->ic_bsschan = IEEE80211_CHAN_ANYC;
 1751         memcpy(ic->ic_chan_active, chanlist, IEEE80211_CHAN_BYTES);
 1752         ieee80211_scan_flush(vap);
 1753         IEEE80211_FREE(list, M_TEMP);
 1754         return ENETRESET;
 1755 }
 1756 
 1757 static int
 1758 ieee80211_ioctl_setstastats(struct ieee80211vap *vap, struct ieee80211req *ireq)
 1759 {
 1760         struct ieee80211_node *ni;
 1761         uint8_t macaddr[IEEE80211_ADDR_LEN];
 1762         int error;
 1763 
 1764         /*
 1765          * NB: we could copyin ieee80211req_sta_stats so apps
 1766          *     could make selective changes but that's overkill;
 1767          *     just clear all stats for now.
 1768          */
 1769         if (ireq->i_len < IEEE80211_ADDR_LEN)
 1770                 return EINVAL;
 1771         error = copyin(ireq->i_data, macaddr, IEEE80211_ADDR_LEN);
 1772         if (error != 0)
 1773                 return error;
 1774         ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap, macaddr);
 1775         if (ni == NULL)
 1776                 return ENOENT;
 1777         /* XXX require ni_vap == vap? */
 1778         memset(&ni->ni_stats, 0, sizeof(ni->ni_stats));
 1779         ieee80211_free_node(ni);
 1780         return 0;
 1781 }
 1782 
 1783 static int
 1784 ieee80211_ioctl_setstatxpow(struct ieee80211vap *vap, struct ieee80211req *ireq)
 1785 {
 1786         struct ieee80211_node *ni;
 1787         struct ieee80211req_sta_txpow txpow;
 1788         int error;
 1789 
 1790         if (ireq->i_len != sizeof(txpow))
 1791                 return EINVAL;
 1792         error = copyin(ireq->i_data, &txpow, sizeof(txpow));
 1793         if (error != 0)
 1794                 return error;
 1795         ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap, txpow.it_macaddr);
 1796         if (ni == NULL)
 1797                 return ENOENT;
 1798         ni->ni_txpower = txpow.it_txpow;
 1799         ieee80211_free_node(ni);
 1800         return error;
 1801 }
 1802 
 1803 static int
 1804 ieee80211_ioctl_setwmeparam(struct ieee80211vap *vap, struct ieee80211req *ireq)
 1805 {
 1806         struct ieee80211com *ic = vap->iv_ic;
 1807         struct ieee80211_wme_state *wme = &ic->ic_wme;
 1808         struct wmeParams *wmep, *chanp;
 1809         int isbss, ac, aggrmode;
 1810 
 1811         if ((ic->ic_caps & IEEE80211_C_WME) == 0)
 1812                 return EOPNOTSUPP;
 1813 
 1814         isbss = (ireq->i_len & IEEE80211_WMEPARAM_BSS);
 1815         ac = (ireq->i_len & IEEE80211_WMEPARAM_VAL);
 1816         aggrmode = (wme->wme_flags & WME_F_AGGRMODE);
 1817         if (ac >= WME_NUM_AC)
 1818                 ac = WME_AC_BE;
 1819         if (isbss) {
 1820                 chanp = &wme->wme_bssChanParams.cap_wmeParams[ac];
 1821                 wmep = &wme->wme_wmeBssChanParams.cap_wmeParams[ac];
 1822         } else {
 1823                 chanp = &wme->wme_chanParams.cap_wmeParams[ac];
 1824                 wmep = &wme->wme_wmeChanParams.cap_wmeParams[ac];
 1825         }
 1826         switch (ireq->i_type) {
 1827         case IEEE80211_IOC_WME_CWMIN:           /* WME: CWmin */
 1828                 wmep->wmep_logcwmin = ireq->i_val;
 1829                 if (!isbss || !aggrmode)
 1830                         chanp->wmep_logcwmin = ireq->i_val;
 1831                 break;
 1832         case IEEE80211_IOC_WME_CWMAX:           /* WME: CWmax */
 1833                 wmep->wmep_logcwmax = ireq->i_val;
 1834                 if (!isbss || !aggrmode)
 1835                         chanp->wmep_logcwmax = ireq->i_val;
 1836                 break;
 1837         case IEEE80211_IOC_WME_AIFS:            /* WME: AIFS */
 1838                 wmep->wmep_aifsn = ireq->i_val;
 1839                 if (!isbss || !aggrmode)
 1840                         chanp->wmep_aifsn = ireq->i_val;
 1841                 break;
 1842         case IEEE80211_IOC_WME_TXOPLIMIT:       /* WME: txops limit */
 1843                 wmep->wmep_txopLimit = ireq->i_val;
 1844                 if (!isbss || !aggrmode)
 1845                         chanp->wmep_txopLimit = ireq->i_val;
 1846                 break;
 1847         case IEEE80211_IOC_WME_ACM:             /* WME: ACM (bss only) */
 1848                 wmep->wmep_acm = ireq->i_val;
 1849                 if (!aggrmode)
 1850                         chanp->wmep_acm = ireq->i_val;
 1851                 break;
 1852         case IEEE80211_IOC_WME_ACKPOLICY:       /* WME: ACK policy (!bss only)*/
 1853                 wmep->wmep_noackPolicy = chanp->wmep_noackPolicy =
 1854                         (ireq->i_val) == 0;
 1855                 break;
 1856         }
 1857         ieee80211_wme_updateparams(vap);
 1858         return 0;
 1859 }
 1860 
 1861 static int
 1862 find11gchannel(struct ieee80211com *ic, int start, int freq)
 1863 {
 1864         const struct ieee80211_channel *c;
 1865         int i;
 1866 
 1867         for (i = start+1; i < ic->ic_nchans; i++) {
 1868                 c = &ic->ic_channels[i];
 1869                 if (c->ic_freq == freq && IEEE80211_IS_CHAN_ANYG(c))
 1870                         return 1;
 1871         }
 1872         /* NB: should not be needed but in case things are mis-sorted */
 1873         for (i = 0; i < start; i++) {
 1874                 c = &ic->ic_channels[i];
 1875                 if (c->ic_freq == freq && IEEE80211_IS_CHAN_ANYG(c))
 1876                         return 1;
 1877         }
 1878         return 0;
 1879 }
 1880 
 1881 static struct ieee80211_channel *
 1882 findchannel(struct ieee80211com *ic, int ieee, int mode)
 1883 {
 1884         static const u_int chanflags[IEEE80211_MODE_MAX] = {
 1885             [IEEE80211_MODE_AUTO]       = 0,
 1886             [IEEE80211_MODE_11A]        = IEEE80211_CHAN_A,
 1887             [IEEE80211_MODE_11B]        = IEEE80211_CHAN_B,
 1888             [IEEE80211_MODE_11G]        = IEEE80211_CHAN_G,
 1889             [IEEE80211_MODE_FH]         = IEEE80211_CHAN_FHSS,
 1890             [IEEE80211_MODE_TURBO_A]    = IEEE80211_CHAN_108A,
 1891             [IEEE80211_MODE_TURBO_G]    = IEEE80211_CHAN_108G,
 1892             [IEEE80211_MODE_STURBO_A]   = IEEE80211_CHAN_STURBO,
 1893             [IEEE80211_MODE_HALF]       = IEEE80211_CHAN_HALF,
 1894             [IEEE80211_MODE_QUARTER]    = IEEE80211_CHAN_QUARTER,
 1895             /* NB: handled specially below */
 1896             [IEEE80211_MODE_11NA]       = IEEE80211_CHAN_A,
 1897             [IEEE80211_MODE_11NG]       = IEEE80211_CHAN_G,
 1898             [IEEE80211_MODE_VHT_5GHZ]   = IEEE80211_CHAN_A,
 1899             [IEEE80211_MODE_VHT_2GHZ]   = IEEE80211_CHAN_G,
 1900         };
 1901         u_int modeflags;
 1902         int i;
 1903 
 1904         modeflags = chanflags[mode];
 1905         for (i = 0; i < ic->ic_nchans; i++) {
 1906                 struct ieee80211_channel *c = &ic->ic_channels[i];
 1907 
 1908                 if (c->ic_ieee != ieee)
 1909                         continue;
 1910                 if (mode == IEEE80211_MODE_AUTO) {
 1911                         /* ignore turbo channels for autoselect */
 1912                         if (IEEE80211_IS_CHAN_TURBO(c))
 1913                                 continue;
 1914                         /*
 1915                          * XXX special-case 11b/g channels so we
 1916                          *     always select the g channel if both
 1917                          *     are present.
 1918                          * XXX prefer HT to non-HT?
 1919                          */
 1920                         if (!IEEE80211_IS_CHAN_B(c) ||
 1921                             !find11gchannel(ic, i, c->ic_freq))
 1922                                 return c;
 1923                 } else {
 1924                         /* must check VHT specifically */
 1925                         if ((mode == IEEE80211_MODE_VHT_5GHZ ||
 1926                             mode == IEEE80211_MODE_VHT_2GHZ) &&
 1927                             !IEEE80211_IS_CHAN_VHT(c))
 1928                                 continue;
 1929 
 1930                         /*
 1931                          * Must check HT specially - only match on HT,
 1932                          * not HT+VHT channels
 1933                          */
 1934                         if ((mode == IEEE80211_MODE_11NA ||
 1935                             mode == IEEE80211_MODE_11NG) &&
 1936                             !IEEE80211_IS_CHAN_HT(c))
 1937                                 continue;
 1938 
 1939                         if ((mode == IEEE80211_MODE_11NA ||
 1940                             mode == IEEE80211_MODE_11NG) &&
 1941                             IEEE80211_IS_CHAN_VHT(c))
 1942                                 continue;
 1943 
 1944                         /* Check that the modeflags above match */
 1945                         if ((c->ic_flags & modeflags) == modeflags)
 1946                                 return c;
 1947                 }
 1948         }
 1949         return NULL;
 1950 }
 1951 
 1952 /*
 1953  * Check the specified against any desired mode (aka netband).
 1954  * This is only used (presently) when operating in hostap mode
 1955  * to enforce consistency.
 1956  */
 1957 static int
 1958 check_mode_consistency(const struct ieee80211_channel *c, int mode)
 1959 {
 1960         KASSERT(c != IEEE80211_CHAN_ANYC, ("oops, no channel"));
 1961 
 1962         switch (mode) {
 1963         case IEEE80211_MODE_11B:
 1964                 return (IEEE80211_IS_CHAN_B(c));
 1965         case IEEE80211_MODE_11G:
 1966                 return (IEEE80211_IS_CHAN_ANYG(c) && !IEEE80211_IS_CHAN_HT(c));
 1967         case IEEE80211_MODE_11A:
 1968                 return (IEEE80211_IS_CHAN_A(c) && !IEEE80211_IS_CHAN_HT(c));
 1969         case IEEE80211_MODE_STURBO_A:
 1970                 return (IEEE80211_IS_CHAN_STURBO(c));
 1971         case IEEE80211_MODE_11NA:
 1972                 return (IEEE80211_IS_CHAN_HTA(c));
 1973         case IEEE80211_MODE_11NG:
 1974                 return (IEEE80211_IS_CHAN_HTG(c));
 1975         }
 1976         return 1;
 1977 
 1978 }
 1979 
 1980 /*
 1981  * Common code to set the current channel.  If the device
 1982  * is up and running this may result in an immediate channel
 1983  * change or a kick of the state machine.
 1984  */
 1985 static int
 1986 setcurchan(struct ieee80211vap *vap, struct ieee80211_channel *c)
 1987 {
 1988         struct ieee80211com *ic = vap->iv_ic;
 1989         int error;
 1990 
 1991         if (c != IEEE80211_CHAN_ANYC) {
 1992                 if (IEEE80211_IS_CHAN_RADAR(c))
 1993                         return EBUSY;   /* XXX better code? */
 1994                 if (vap->iv_opmode == IEEE80211_M_HOSTAP) {
 1995                         if (IEEE80211_IS_CHAN_NOHOSTAP(c))
 1996                                 return EINVAL;
 1997                         if (!check_mode_consistency(c, vap->iv_des_mode))
 1998                                 return EINVAL;
 1999                 } else if (vap->iv_opmode == IEEE80211_M_IBSS) {
 2000                         if (IEEE80211_IS_CHAN_NOADHOC(c))
 2001                                 return EINVAL;
 2002                 }
 2003                 if ((vap->iv_state == IEEE80211_S_RUN || vap->iv_state == IEEE80211_S_SLEEP) &&
 2004                     vap->iv_bss->ni_chan == c)
 2005                         return 0;       /* NB: nothing to do */
 2006         }
 2007         vap->iv_des_chan = c;
 2008 
 2009         error = 0;
 2010         if (vap->iv_opmode == IEEE80211_M_MONITOR &&
 2011             vap->iv_des_chan != IEEE80211_CHAN_ANYC) {
 2012                 /*
 2013                  * Monitor mode can switch directly.
 2014                  */
 2015                 if (IFNET_IS_UP_RUNNING(vap->iv_ifp)) {
 2016                         /* XXX need state machine for other vap's to follow */
 2017                         ieee80211_setcurchan(ic, vap->iv_des_chan);
 2018                         vap->iv_bss->ni_chan = ic->ic_curchan;
 2019                 } else {
 2020                         ic->ic_curchan = vap->iv_des_chan;
 2021                         ic->ic_rt = ieee80211_get_ratetable(ic->ic_curchan);
 2022                 }
 2023         } else {
 2024                 /*
 2025                  * Need to go through the state machine in case we
 2026                  * need to reassociate or the like.  The state machine
 2027                  * will pickup the desired channel and avoid scanning.
 2028                  */
 2029                 if (IS_UP_AUTO(vap))
 2030                         ieee80211_new_state(vap, IEEE80211_S_SCAN, 0);
 2031                 else if (vap->iv_des_chan != IEEE80211_CHAN_ANYC) {
 2032                         /*
 2033                          * When not up+running and a real channel has
 2034                          * been specified fix the current channel so
 2035                          * there is immediate feedback; e.g. via ifconfig.
 2036                          */
 2037                         ic->ic_curchan = vap->iv_des_chan;
 2038                         ic->ic_rt = ieee80211_get_ratetable(ic->ic_curchan);
 2039                 }
 2040         }
 2041         return error;
 2042 }
 2043 
 2044 /*
 2045  * Old api for setting the current channel; this is
 2046  * deprecated because channel numbers are ambiguous.
 2047  */
 2048 static int
 2049 ieee80211_ioctl_setchannel(struct ieee80211vap *vap,
 2050         const struct ieee80211req *ireq)
 2051 {
 2052         struct ieee80211com *ic = vap->iv_ic;
 2053         struct ieee80211_channel *c;
 2054 
 2055         /* XXX 0xffff overflows 16-bit signed */
 2056         if (ireq->i_val == 0 ||
 2057             ireq->i_val == (int16_t) IEEE80211_CHAN_ANY) {
 2058                 c = IEEE80211_CHAN_ANYC;
 2059         } else {
 2060                 struct ieee80211_channel *c2;
 2061 
 2062                 c = findchannel(ic, ireq->i_val, vap->iv_des_mode);
 2063                 if (c == NULL) {
 2064                         c = findchannel(ic, ireq->i_val,
 2065                                 IEEE80211_MODE_AUTO);
 2066                         if (c == NULL)
 2067                                 return EINVAL;
 2068                 }
 2069 
 2070                 /*
 2071                  * Fine tune channel selection based on desired mode:
 2072                  *   if 11b is requested, find the 11b version of any
 2073                  *      11g channel returned,
 2074                  *   if static turbo, find the turbo version of any
 2075                  *      11a channel return,
 2076                  *   if 11na is requested, find the ht version of any
 2077                  *      11a channel returned,
 2078                  *   if 11ng is requested, find the ht version of any
 2079                  *      11g channel returned,
 2080                  *   if 11ac is requested, find the 11ac version
 2081                  *      of any 11a/11na channel returned,
 2082                  *   (TBD) 11acg (2GHz VHT)
 2083                  *   otherwise we should be ok with what we've got.
 2084                  */
 2085                 switch (vap->iv_des_mode) {
 2086                 case IEEE80211_MODE_11B:
 2087                         if (IEEE80211_IS_CHAN_ANYG(c)) {
 2088                                 c2 = findchannel(ic, ireq->i_val,
 2089                                         IEEE80211_MODE_11B);
 2090                                 /* NB: should not happen, =>'s 11g w/o 11b */
 2091                                 if (c2 != NULL)
 2092                                         c = c2;
 2093                         }
 2094                         break;
 2095                 case IEEE80211_MODE_TURBO_A:
 2096                         if (IEEE80211_IS_CHAN_A(c)) {
 2097                                 c2 = findchannel(ic, ireq->i_val,
 2098                                         IEEE80211_MODE_TURBO_A);
 2099                                 if (c2 != NULL)
 2100                                         c = c2;
 2101                         }
 2102                         break;
 2103                 case IEEE80211_MODE_11NA:
 2104                         if (IEEE80211_IS_CHAN_A(c)) {
 2105                                 c2 = findchannel(ic, ireq->i_val,
 2106                                         IEEE80211_MODE_11NA);
 2107                                 if (c2 != NULL)
 2108                                         c = c2;
 2109                         }
 2110                         break;
 2111                 case IEEE80211_MODE_11NG:
 2112                         if (IEEE80211_IS_CHAN_ANYG(c)) {
 2113                                 c2 = findchannel(ic, ireq->i_val,
 2114                                         IEEE80211_MODE_11NG);
 2115                                 if (c2 != NULL)
 2116                                         c = c2;
 2117                         }
 2118                         break;
 2119                 case IEEE80211_MODE_VHT_2GHZ:
 2120                         printf("%s: TBD\n", __func__);
 2121                         break;
 2122                 case IEEE80211_MODE_VHT_5GHZ:
 2123                         if (IEEE80211_IS_CHAN_A(c)) {
 2124                                 c2 = findchannel(ic, ireq->i_val,
 2125                                         IEEE80211_MODE_VHT_5GHZ);
 2126                                 if (c2 != NULL)
 2127                                         c = c2;
 2128                         }
 2129                         break;
 2130                 default:                /* NB: no static turboG */
 2131                         break;
 2132                 }
 2133         }
 2134         return setcurchan(vap, c);
 2135 }
 2136 
 2137 /*
 2138  * New/current api for setting the current channel; a complete
 2139  * channel description is provide so there is no ambiguity in
 2140  * identifying the channel.
 2141  */
 2142 static int
 2143 ieee80211_ioctl_setcurchan(struct ieee80211vap *vap,
 2144         const struct ieee80211req *ireq)
 2145 {
 2146         struct ieee80211com *ic = vap->iv_ic;
 2147         struct ieee80211_channel chan, *c;
 2148         int error;
 2149 
 2150         if (ireq->i_len != sizeof(chan))
 2151                 return EINVAL;
 2152         error = copyin(ireq->i_data, &chan, sizeof(chan));
 2153         if (error != 0)
 2154                 return error;
 2155 
 2156         /* XXX 0xffff overflows 16-bit signed */
 2157         if (chan.ic_freq == 0 || chan.ic_freq == IEEE80211_CHAN_ANY) {
 2158                 c = IEEE80211_CHAN_ANYC;
 2159         } else {
 2160                 c = ieee80211_find_channel(ic, chan.ic_freq, chan.ic_flags);
 2161                 if (c == NULL)
 2162                         return EINVAL;
 2163         }
 2164         return setcurchan(vap, c);
 2165 }
 2166 
 2167 static int
 2168 ieee80211_ioctl_setregdomain(struct ieee80211vap *vap,
 2169         const struct ieee80211req *ireq)
 2170 {
 2171         struct ieee80211_regdomain_req *reg;
 2172         int nchans, error;
 2173 
 2174         nchans = 1 + ((ireq->i_len - sizeof(struct ieee80211_regdomain_req)) /
 2175             sizeof(struct ieee80211_channel));
 2176         if (!(1 <= nchans && nchans <= IEEE80211_CHAN_MAX)) {
 2177                 IEEE80211_DPRINTF(vap, IEEE80211_MSG_IOCTL,
 2178                     "%s: bad # chans, i_len %d nchans %d\n", __func__,
 2179                     ireq->i_len, nchans);
 2180                 return EINVAL;
 2181         }
 2182         reg = (struct ieee80211_regdomain_req *)
 2183             IEEE80211_MALLOC(IEEE80211_REGDOMAIN_SIZE(nchans), M_TEMP,
 2184               IEEE80211_M_NOWAIT | IEEE80211_M_ZERO);
 2185         if (reg == NULL) {
 2186                 IEEE80211_DPRINTF(vap, IEEE80211_MSG_IOCTL,
 2187                     "%s: no memory, nchans %d\n", __func__, nchans);
 2188                 return ENOMEM;
 2189         }
 2190         error = copyin(ireq->i_data, reg, IEEE80211_REGDOMAIN_SIZE(nchans));
 2191         if (error == 0) {
 2192                 /* NB: validate inline channel count against storage size */
 2193                 if (reg->chaninfo.ic_nchans != nchans) {
 2194                         IEEE80211_DPRINTF(vap, IEEE80211_MSG_IOCTL,
 2195                             "%s: chan cnt mismatch, %d != %d\n", __func__,
 2196                                 reg->chaninfo.ic_nchans, nchans);
 2197                         error = EINVAL;
 2198                 } else
 2199                         error = ieee80211_setregdomain(vap, reg);
 2200         }
 2201         IEEE80211_FREE(reg, M_TEMP);
 2202 
 2203         return (error == 0 ? ENETRESET : error);
 2204 }
 2205 
 2206 static int
 2207 checkrate(const struct ieee80211_rateset *rs, int rate)
 2208 {
 2209         int i;
 2210 
 2211         if (rate == IEEE80211_FIXED_RATE_NONE)
 2212                 return 1;
 2213         for (i = 0; i < rs->rs_nrates; i++)
 2214                 if ((rs->rs_rates[i] & IEEE80211_RATE_VAL) == rate)
 2215                         return 1;
 2216         return 0;
 2217 }
 2218 
 2219 static int
 2220 checkmcs(const struct ieee80211_htrateset *rs, int mcs)
 2221 {
 2222         int rate_val = IEEE80211_RV(mcs);
 2223         int i;
 2224 
 2225         if (mcs == IEEE80211_FIXED_RATE_NONE)
 2226                 return 1;
 2227         if ((mcs & IEEE80211_RATE_MCS) == 0)    /* MCS always have 0x80 set */
 2228                 return 0;
 2229         for (i = 0; i < rs->rs_nrates; i++)
 2230                 if (IEEE80211_RV(rs->rs_rates[i]) == rate_val)
 2231                         return 1;
 2232         return 0;
 2233 }
 2234 
 2235 static int
 2236 ieee80211_ioctl_setroam(struct ieee80211vap *vap,
 2237         const struct ieee80211req *ireq)
 2238 {
 2239         struct ieee80211com *ic = vap->iv_ic;
 2240         struct ieee80211_roamparams_req *parms;
 2241         struct ieee80211_roamparam *src, *dst;
 2242         const struct ieee80211_htrateset *rs_ht;
 2243         const struct ieee80211_rateset *rs;
 2244         int changed, error, mode, is11n, nmodes;
 2245 
 2246         if (ireq->i_len != sizeof(vap->iv_roamparms))
 2247                 return EINVAL;
 2248 
 2249         parms = IEEE80211_MALLOC(sizeof(*parms), M_TEMP,
 2250             IEEE80211_M_NOWAIT | IEEE80211_M_ZERO);
 2251         if (parms == NULL)
 2252                 return ENOMEM;
 2253 
 2254         error = copyin(ireq->i_data, parms, ireq->i_len);
 2255         if (error != 0)
 2256                 goto fail;
 2257 
 2258         changed = 0;
 2259         nmodes = IEEE80211_MODE_MAX;
 2260 
 2261         /* validate parameters and check if anything changed */
 2262         for (mode = IEEE80211_MODE_11A; mode < nmodes; mode++) {
 2263                 if (isclr(ic->ic_modecaps, mode))
 2264                         continue;
 2265                 src = &parms->params[mode];
 2266                 dst = &vap->iv_roamparms[mode];
 2267                 rs = &ic->ic_sup_rates[mode];   /* NB: 11n maps to legacy */
 2268                 rs_ht = &ic->ic_sup_htrates;
 2269                 is11n = (mode == IEEE80211_MODE_11NA ||
 2270                          mode == IEEE80211_MODE_11NG);
 2271                 /* XXX TODO: 11ac */
 2272                 if (src->rate != dst->rate) {
 2273                         if (!checkrate(rs, src->rate) &&
 2274                             (!is11n || !checkmcs(rs_ht, src->rate))) {
 2275                                 error = EINVAL;
 2276                                 goto fail;
 2277                         }
 2278                         changed++;
 2279                 }
 2280                 if (src->rssi != dst->rssi)
 2281                         changed++;
 2282         }
 2283         if (changed) {
 2284                 /*
 2285                  * Copy new parameters in place and notify the
 2286                  * driver so it can push state to the device.
 2287                  */
 2288                 /* XXX locking? */
 2289                 for (mode = IEEE80211_MODE_11A; mode < nmodes; mode++) {
 2290                         if (isset(ic->ic_modecaps, mode))
 2291                                 vap->iv_roamparms[mode] = parms->params[mode];
 2292                 }
 2293 
 2294                 if (vap->iv_roaming == IEEE80211_ROAMING_DEVICE)
 2295                         error = ERESTART;
 2296         }
 2297 
 2298 fail:   IEEE80211_FREE(parms, M_TEMP);
 2299         return error;
 2300 }
 2301 
 2302 static int
 2303 ieee80211_ioctl_settxparams(struct ieee80211vap *vap,
 2304         const struct ieee80211req *ireq)
 2305 {
 2306         struct ieee80211com *ic = vap->iv_ic;
 2307         struct ieee80211_txparams_req parms;    /* XXX stack use? */
 2308         struct ieee80211_txparam *src, *dst;
 2309         const struct ieee80211_htrateset *rs_ht;
 2310         const struct ieee80211_rateset *rs;
 2311         int error, mode, changed, is11n, nmodes;
 2312 
 2313         /* NB: accept short requests for backwards compat */
 2314         if (ireq->i_len > sizeof(parms))
 2315                 return EINVAL;
 2316         error = copyin(ireq->i_data, &parms, ireq->i_len);
 2317         if (error != 0)
 2318                 return error;
 2319         nmodes = ireq->i_len / sizeof(struct ieee80211_txparam);
 2320         changed = 0;
 2321         /* validate parameters and check if anything changed */
 2322         for (mode = IEEE80211_MODE_11A; mode < nmodes; mode++) {
 2323                 if (isclr(ic->ic_modecaps, mode))
 2324                         continue;
 2325                 src = &parms.params[mode];
 2326                 dst = &vap->iv_txparms[mode];
 2327                 rs = &ic->ic_sup_rates[mode];   /* NB: 11n maps to legacy */
 2328                 rs_ht = &ic->ic_sup_htrates;
 2329                 is11n = (mode == IEEE80211_MODE_11NA ||
 2330                          mode == IEEE80211_MODE_11NG);
 2331                 if (src->ucastrate != dst->ucastrate) {
 2332                         if (!checkrate(rs, src->ucastrate) &&
 2333                             (!is11n || !checkmcs(rs_ht, src->ucastrate)))
 2334                                 return EINVAL;
 2335                         changed++;
 2336                 }
 2337                 if (src->mcastrate != dst->mcastrate) {
 2338                         if (!checkrate(rs, src->mcastrate) &&
 2339                             (!is11n || !checkmcs(rs_ht, src->mcastrate)))
 2340                                 return EINVAL;
 2341                         changed++;
 2342                 }
 2343                 if (src->mgmtrate != dst->mgmtrate) {
 2344                         if (!checkrate(rs, src->mgmtrate) &&
 2345                             (!is11n || !checkmcs(rs_ht, src->mgmtrate)))
 2346                                 return EINVAL;
 2347                         changed++;
 2348                 }
 2349                 if (src->maxretry != dst->maxretry)     /* NB: no bounds */
 2350                         changed++;
 2351         }
 2352         if (changed) {
 2353                 /*
 2354                  * Copy new parameters in place and notify the
 2355                  * driver so it can push state to the device.
 2356                  */
 2357                 for (mode = IEEE80211_MODE_11A; mode < nmodes; mode++) {
 2358                         if (isset(ic->ic_modecaps, mode))
 2359                                 vap->iv_txparms[mode] = parms.params[mode];
 2360                 }
 2361                 /* XXX could be more intelligent,
 2362                    e.g. don't reset if setting not being used */
 2363                 return ENETRESET;
 2364         }
 2365         return 0;
 2366 }
 2367 
 2368 /*
 2369  * Application Information Element support.
 2370  */
 2371 static int
 2372 setappie(struct ieee80211_appie **aie, const struct ieee80211req *ireq)
 2373 {
 2374         struct ieee80211_appie *app = *aie;
 2375         struct ieee80211_appie *napp;
 2376         int error;
 2377 
 2378         if (ireq->i_len == 0) {         /* delete any existing ie */
 2379                 if (app != NULL) {
 2380                         *aie = NULL;    /* XXX racey */
 2381                         IEEE80211_FREE(app, M_80211_NODE_IE);
 2382                 }
 2383                 return 0;
 2384         }
 2385         if (!(2 <= ireq->i_len && ireq->i_len <= IEEE80211_MAX_APPIE))
 2386                 return EINVAL;
 2387         /*
 2388          * Allocate a new appie structure and copy in the user data.
 2389          * When done swap in the new structure.  Note that we do not
 2390          * guard against users holding a ref to the old structure;
 2391          * this must be handled outside this code.
 2392          *
 2393          * XXX bad bad bad
 2394          */
 2395         napp = (struct ieee80211_appie *) IEEE80211_MALLOC(
 2396             sizeof(struct ieee80211_appie) + ireq->i_len, M_80211_NODE_IE,
 2397             IEEE80211_M_NOWAIT);
 2398         if (napp == NULL)
 2399                 return ENOMEM;
 2400         /* XXX holding ic lock */
 2401         error = copyin(ireq->i_data, napp->ie_data, ireq->i_len);
 2402         if (error) {
 2403                 IEEE80211_FREE(napp, M_80211_NODE_IE);
 2404                 return error;
 2405         }
 2406         napp->ie_len = ireq->i_len;
 2407         *aie = napp;
 2408         if (app != NULL)
 2409                 IEEE80211_FREE(app, M_80211_NODE_IE);
 2410         return 0;
 2411 }
 2412 
 2413 static void
 2414 setwparsnie(struct ieee80211vap *vap, uint8_t *ie, int space)
 2415 {
 2416         /* validate data is present as best we can */
 2417         if (space == 0 || 2+ie[1] > space)
 2418                 return;
 2419         if (ie[0] == IEEE80211_ELEMID_VENDOR)
 2420                 vap->iv_wpa_ie = ie;
 2421         else if (ie[0] == IEEE80211_ELEMID_RSN)
 2422                 vap->iv_rsn_ie = ie;
 2423 }
 2424 
 2425 static int
 2426 ieee80211_ioctl_setappie_locked(struct ieee80211vap *vap,
 2427         const struct ieee80211req *ireq, int fc0)
 2428 {
 2429         int error;
 2430 
 2431         IEEE80211_LOCK_ASSERT(vap->iv_ic);
 2432 
 2433         switch (fc0 & IEEE80211_FC0_SUBTYPE_MASK) {
 2434         case IEEE80211_FC0_SUBTYPE_BEACON:
 2435                 if (vap->iv_opmode != IEEE80211_M_HOSTAP &&
 2436                     vap->iv_opmode != IEEE80211_M_IBSS) {
 2437                         error = EINVAL;
 2438                         break;
 2439                 }
 2440                 error = setappie(&vap->iv_appie_beacon, ireq);
 2441                 if (error == 0)
 2442                         ieee80211_beacon_notify(vap, IEEE80211_BEACON_APPIE);
 2443                 break;
 2444         case IEEE80211_FC0_SUBTYPE_PROBE_RESP:
 2445                 error = setappie(&vap->iv_appie_proberesp, ireq);
 2446                 break;
 2447         case IEEE80211_FC0_SUBTYPE_ASSOC_RESP:
 2448                 if (vap->iv_opmode == IEEE80211_M_HOSTAP)
 2449                         error = setappie(&vap->iv_appie_assocresp, ireq);
 2450                 else
 2451                         error = EINVAL;
 2452                 break;
 2453         case IEEE80211_FC0_SUBTYPE_PROBE_REQ:
 2454                 error = setappie(&vap->iv_appie_probereq, ireq);
 2455                 break;
 2456         case IEEE80211_FC0_SUBTYPE_ASSOC_REQ:
 2457                 if (vap->iv_opmode == IEEE80211_M_STA)
 2458                         error = setappie(&vap->iv_appie_assocreq, ireq);
 2459                 else
 2460                         error = EINVAL;
 2461                 break;
 2462         case (IEEE80211_APPIE_WPA & IEEE80211_FC0_SUBTYPE_MASK):
 2463                 error = setappie(&vap->iv_appie_wpa, ireq);
 2464                 if (error == 0) {
 2465                         /*
 2466                          * Must split single blob of data into separate
 2467                          * WPA and RSN ie's because they go in different
 2468                          * locations in the mgt frames.
 2469                          * XXX use IEEE80211_IOC_WPA2 so user code does split
 2470                          */
 2471                         vap->iv_wpa_ie = NULL;
 2472                         vap->iv_rsn_ie = NULL;
 2473                         if (vap->iv_appie_wpa != NULL) {
 2474                                 struct ieee80211_appie *appie =
 2475                                     vap->iv_appie_wpa;
 2476                                 uint8_t *data = appie->ie_data;
 2477 
 2478                                 /* XXX ie length validate is painful, cheat */
 2479                                 setwparsnie(vap, data, appie->ie_len);
 2480                                 setwparsnie(vap, data + 2 + data[1],
 2481                                     appie->ie_len - (2 + data[1]));
 2482                         }
 2483                         if (vap->iv_opmode == IEEE80211_M_HOSTAP ||
 2484                             vap->iv_opmode == IEEE80211_M_IBSS) {
 2485                                 /*
 2486                                  * Must rebuild beacon frame as the update
 2487                                  * mechanism doesn't handle WPA/RSN ie's.
 2488                                  * Could extend it but it doesn't normally
 2489                                  * change; this is just to deal with hostapd
 2490                                  * plumbing the ie after the interface is up.
 2491                                  */
 2492                                 error = ENETRESET;
 2493                         }
 2494                 }
 2495                 break;
 2496         default:
 2497                 error = EINVAL;
 2498                 break;
 2499         }
 2500         return error;
 2501 }
 2502 
 2503 static int
 2504 ieee80211_ioctl_setappie(struct ieee80211vap *vap,
 2505         const struct ieee80211req *ireq)
 2506 {
 2507         struct ieee80211com *ic = vap->iv_ic;
 2508         int error;
 2509         uint8_t fc0;
 2510 
 2511         fc0 = ireq->i_val & 0xff;
 2512         if ((fc0 & IEEE80211_FC0_TYPE_MASK) != IEEE80211_FC0_TYPE_MGT)
 2513                 return EINVAL;
 2514         /* NB: could check iv_opmode and reject but hardly worth the effort */
 2515         IEEE80211_LOCK(ic);
 2516         error = ieee80211_ioctl_setappie_locked(vap, ireq, fc0);
 2517         IEEE80211_UNLOCK(ic);
 2518         return error;
 2519 }
 2520 
 2521 static int
 2522 ieee80211_ioctl_chanswitch(struct ieee80211vap *vap, struct ieee80211req *ireq)
 2523 {
 2524         struct ieee80211com *ic = vap->iv_ic;
 2525         struct ieee80211_chanswitch_req csr;
 2526         struct ieee80211_channel *c;
 2527         int error;
 2528 
 2529         if (ireq->i_len != sizeof(csr))
 2530                 return EINVAL;
 2531         error = copyin(ireq->i_data, &csr, sizeof(csr));
 2532         if (error != 0)
 2533                 return error;
 2534         /* XXX adhoc mode not supported */
 2535         if (vap->iv_opmode != IEEE80211_M_HOSTAP ||
 2536             (vap->iv_flags & IEEE80211_F_DOTH) == 0)
 2537                 return EOPNOTSUPP;
 2538         c = ieee80211_find_channel(ic,
 2539             csr.csa_chan.ic_freq, csr.csa_chan.ic_flags);
 2540         if (c == NULL)
 2541                 return ENOENT;
 2542         IEEE80211_LOCK(ic);
 2543         if ((ic->ic_flags & IEEE80211_F_CSAPENDING) == 0)
 2544                 ieee80211_csa_startswitch(ic, c, csr.csa_mode, csr.csa_count);
 2545         else if (csr.csa_count == 0)
 2546                 ieee80211_csa_cancelswitch(ic);
 2547         else
 2548                 error = EBUSY;
 2549         IEEE80211_UNLOCK(ic);
 2550         return error;
 2551 }
 2552 
 2553 static int
 2554 ieee80211_scanreq(struct ieee80211vap *vap, struct ieee80211_scan_req *sr)
 2555 {
 2556 #define IEEE80211_IOC_SCAN_FLAGS \
 2557         (IEEE80211_IOC_SCAN_NOPICK | IEEE80211_IOC_SCAN_ACTIVE | \
 2558          IEEE80211_IOC_SCAN_PICK1ST | IEEE80211_IOC_SCAN_BGSCAN | \
 2559          IEEE80211_IOC_SCAN_ONCE | IEEE80211_IOC_SCAN_NOBCAST | \
 2560          IEEE80211_IOC_SCAN_NOJOIN | IEEE80211_IOC_SCAN_FLUSH | \
 2561          IEEE80211_IOC_SCAN_CHECK)
 2562         struct ieee80211com *ic = vap->iv_ic;
 2563         int error, i;
 2564 
 2565         /* convert duration */
 2566         if (sr->sr_duration == IEEE80211_IOC_SCAN_FOREVER)
 2567                 sr->sr_duration = IEEE80211_SCAN_FOREVER;
 2568         else {
 2569                 if (sr->sr_duration < IEEE80211_IOC_SCAN_DURATION_MIN ||
 2570                     sr->sr_duration > IEEE80211_IOC_SCAN_DURATION_MAX)
 2571                         return EINVAL;
 2572                 sr->sr_duration = msecs_to_ticks(sr->sr_duration);
 2573         }
 2574         /* convert min/max channel dwell */
 2575         if (sr->sr_mindwell != 0)
 2576                 sr->sr_mindwell = msecs_to_ticks(sr->sr_mindwell);
 2577         if (sr->sr_maxdwell != 0)
 2578                 sr->sr_maxdwell = msecs_to_ticks(sr->sr_maxdwell);
 2579         /* NB: silently reduce ssid count to what is supported */
 2580         if (sr->sr_nssid > IEEE80211_SCAN_MAX_SSID)
 2581                 sr->sr_nssid = IEEE80211_SCAN_MAX_SSID;
 2582         for (i = 0; i < sr->sr_nssid; i++)
 2583                 if (sr->sr_ssid[i].len > IEEE80211_NWID_LEN)
 2584                         return EINVAL;
 2585         /* cleanse flags just in case, could reject if invalid flags */
 2586         sr->sr_flags &= IEEE80211_IOC_SCAN_FLAGS;
 2587         /*
 2588          * Add an implicit NOPICK if the vap is not marked UP.  This
 2589          * allows applications to scan without joining a bss (or picking
 2590          * a channel and setting up a bss) and without forcing manual
 2591          * roaming mode--you just need to mark the parent device UP.
 2592          */
 2593         if ((vap->iv_ifp->if_flags & IFF_UP) == 0)
 2594                 sr->sr_flags |= IEEE80211_IOC_SCAN_NOPICK;
 2595 
 2596         IEEE80211_DPRINTF(vap, IEEE80211_MSG_SCAN,
 2597             "%s: flags 0x%x%s duration 0x%x mindwell %u maxdwell %u nssid %d\n",
 2598             __func__, sr->sr_flags,
 2599             (vap->iv_ifp->if_flags & IFF_UP) == 0 ? " (!IFF_UP)" : "",
 2600             sr->sr_duration, sr->sr_mindwell, sr->sr_maxdwell, sr->sr_nssid);
 2601         /*
 2602          * If we are in INIT state then the driver has never had a chance
 2603          * to setup hardware state to do a scan; we must use the state
 2604          * machine to get us up to the SCAN state but once we reach SCAN
 2605          * state we then want to use the supplied params.  Stash the
 2606          * parameters in the vap and mark IEEE80211_FEXT_SCANREQ; the
 2607          * state machines will recognize this and use the stashed params
 2608          * to issue the scan request.
 2609          *
 2610          * Otherwise just invoke the scan machinery directly.
 2611          */
 2612         IEEE80211_LOCK(ic);
 2613         if (ic->ic_nrunning == 0) {
 2614                 IEEE80211_UNLOCK(ic);
 2615                 return ENXIO;
 2616         }
 2617 
 2618         if (vap->iv_state == IEEE80211_S_INIT) {
 2619                 /* NB: clobbers previous settings */
 2620                 vap->iv_scanreq_flags = sr->sr_flags;
 2621                 vap->iv_scanreq_duration = sr->sr_duration;
 2622                 vap->iv_scanreq_nssid = sr->sr_nssid;
 2623                 for (i = 0; i < sr->sr_nssid; i++) {
 2624                         vap->iv_scanreq_ssid[i].len = sr->sr_ssid[i].len;
 2625                         memcpy(vap->iv_scanreq_ssid[i].ssid,
 2626                             sr->sr_ssid[i].ssid, sr->sr_ssid[i].len);
 2627                 }
 2628                 vap->iv_flags_ext |= IEEE80211_FEXT_SCANREQ;
 2629                 IEEE80211_UNLOCK(ic);
 2630                 ieee80211_new_state(vap, IEEE80211_S_SCAN, 0);
 2631         } else {
 2632                 vap->iv_flags_ext &= ~IEEE80211_FEXT_SCANREQ;
 2633                 IEEE80211_UNLOCK(ic);
 2634                 if (sr->sr_flags & IEEE80211_IOC_SCAN_CHECK) {
 2635                         error = ieee80211_check_scan(vap, sr->sr_flags,
 2636                             sr->sr_duration, sr->sr_mindwell, sr->sr_maxdwell,
 2637                             sr->sr_nssid,
 2638                             /* NB: cheat, we assume structures are compatible */
 2639                             (const struct ieee80211_scan_ssid *) &sr->sr_ssid[0]);
 2640                 } else {
 2641                         error = ieee80211_start_scan(vap, sr->sr_flags,
 2642                             sr->sr_duration, sr->sr_mindwell, sr->sr_maxdwell,
 2643                             sr->sr_nssid,
 2644                             /* NB: cheat, we assume structures are compatible */
 2645                             (const struct ieee80211_scan_ssid *) &sr->sr_ssid[0]);
 2646                 }
 2647                 if (error == 0)
 2648                         return EINPROGRESS;
 2649         }
 2650         return 0;
 2651 #undef IEEE80211_IOC_SCAN_FLAGS
 2652 }
 2653 
 2654 static int
 2655 ieee80211_ioctl_scanreq(struct ieee80211vap *vap, struct ieee80211req *ireq)
 2656 {
 2657         struct ieee80211_scan_req *sr;
 2658         int error;
 2659 
 2660         if (ireq->i_len != sizeof(*sr))
 2661                 return EINVAL;
 2662         sr = IEEE80211_MALLOC(sizeof(*sr), M_TEMP,
 2663              IEEE80211_M_NOWAIT | IEEE80211_M_ZERO);
 2664         if (sr == NULL)
 2665                 return ENOMEM;
 2666         error = copyin(ireq->i_data, sr, sizeof(*sr));
 2667         if (error != 0)
 2668                 goto bad;
 2669         error = ieee80211_scanreq(vap, sr);
 2670 bad:
 2671         IEEE80211_FREE(sr, M_TEMP);
 2672         return error;
 2673 }
 2674 
 2675 static int
 2676 ieee80211_ioctl_setstavlan(struct ieee80211vap *vap, struct ieee80211req *ireq)
 2677 {
 2678         struct ieee80211_node *ni;
 2679         struct ieee80211req_sta_vlan vlan;
 2680         int error;
 2681 
 2682         if (ireq->i_len != sizeof(vlan))
 2683                 return EINVAL;
 2684         error = copyin(ireq->i_data, &vlan, sizeof(vlan));
 2685         if (error != 0)
 2686                 return error;
 2687         if (!IEEE80211_ADDR_EQ(vlan.sv_macaddr, zerobssid)) {
 2688                 ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap,
 2689                     vlan.sv_macaddr);
 2690                 if (ni == NULL)
 2691                         return ENOENT;
 2692         } else
 2693                 ni = ieee80211_ref_node(vap->iv_bss);
 2694         ni->ni_vlan = vlan.sv_vlan;
 2695         ieee80211_free_node(ni);
 2696         return error;
 2697 }
 2698 
 2699 static int
 2700 isvap11g(const struct ieee80211vap *vap)
 2701 {
 2702         const struct ieee80211_node *bss = vap->iv_bss;
 2703         return bss->ni_chan != IEEE80211_CHAN_ANYC &&
 2704             IEEE80211_IS_CHAN_ANYG(bss->ni_chan);
 2705 }
 2706 
 2707 static int
 2708 isvapht(const struct ieee80211vap *vap)
 2709 {
 2710         const struct ieee80211_node *bss = vap->iv_bss;
 2711         return bss->ni_chan != IEEE80211_CHAN_ANYC &&
 2712             IEEE80211_IS_CHAN_HT(bss->ni_chan);
 2713 }
 2714 
 2715 /*
 2716  * Dummy ioctl set handler so the linker set is defined.
 2717  */
 2718 static int
 2719 dummy_ioctl_set(struct ieee80211vap *vap, struct ieee80211req *ireq)
 2720 {
 2721         return ENOSYS;
 2722 }
 2723 IEEE80211_IOCTL_SET(dummy, dummy_ioctl_set);
 2724 
 2725 static int
 2726 ieee80211_ioctl_setdefault(struct ieee80211vap *vap, struct ieee80211req *ireq)
 2727 {
 2728         ieee80211_ioctl_setfunc * const *set;
 2729         int error;
 2730 
 2731         SET_FOREACH(set, ieee80211_ioctl_setset) {
 2732                 error = (*set)(vap, ireq);
 2733                 if (error != ENOSYS)
 2734                         return error;
 2735         }
 2736         return EINVAL;
 2737 }
 2738 
 2739 static int
 2740 ieee80211_ioctl_set80211(struct ieee80211vap *vap, u_long cmd, struct ieee80211req *ireq)
 2741 {
 2742         struct ieee80211com *ic = vap->iv_ic;
 2743         int error;
 2744         const struct ieee80211_authenticator *auth;
 2745         uint8_t tmpkey[IEEE80211_KEYBUF_SIZE];
 2746         char tmpssid[IEEE80211_NWID_LEN];
 2747         uint8_t tmpbssid[IEEE80211_ADDR_LEN];
 2748         struct ieee80211_key *k;
 2749         u_int kid;
 2750         uint32_t flags;
 2751 
 2752         error = 0;
 2753         switch (ireq->i_type) {
 2754         case IEEE80211_IOC_SSID:
 2755                 if (ireq->i_val != 0 ||
 2756                     ireq->i_len > IEEE80211_NWID_LEN)
 2757                         return EINVAL;
 2758                 error = copyin(ireq->i_data, tmpssid, ireq->i_len);
 2759                 if (error)
 2760                         break;
 2761                 memset(vap->iv_des_ssid[0].ssid, 0, IEEE80211_NWID_LEN);
 2762                 vap->iv_des_ssid[0].len = ireq->i_len;
 2763                 memcpy(vap->iv_des_ssid[0].ssid, tmpssid, ireq->i_len);
 2764                 vap->iv_des_nssid = (ireq->i_len > 0);
 2765                 error = ENETRESET;
 2766                 break;
 2767         case IEEE80211_IOC_WEP:
 2768                 switch (ireq->i_val) {
 2769                 case IEEE80211_WEP_OFF:
 2770                         vap->iv_flags &= ~IEEE80211_F_PRIVACY;
 2771                         vap->iv_flags &= ~IEEE80211_F_DROPUNENC;
 2772                         break;
 2773                 case IEEE80211_WEP_ON:
 2774                         vap->iv_flags |= IEEE80211_F_PRIVACY;
 2775                         vap->iv_flags |= IEEE80211_F_DROPUNENC;
 2776                         break;
 2777                 case IEEE80211_WEP_MIXED:
 2778                         vap->iv_flags |= IEEE80211_F_PRIVACY;
 2779                         vap->iv_flags &= ~IEEE80211_F_DROPUNENC;
 2780                         break;
 2781                 }
 2782                 error = ENETRESET;
 2783                 break;
 2784         case IEEE80211_IOC_WEPKEY:
 2785                 kid = (u_int) ireq->i_val;
 2786                 if (kid >= IEEE80211_WEP_NKID)
 2787                         return EINVAL;
 2788                 k = &vap->iv_nw_keys[kid];
 2789                 if (ireq->i_len == 0) {
 2790                         /* zero-len =>'s delete any existing key */
 2791                         (void) ieee80211_crypto_delkey(vap, k);
 2792                         break;
 2793                 }
 2794                 if (ireq->i_len > sizeof(tmpkey))
 2795                         return EINVAL;
 2796                 memset(tmpkey, 0, sizeof(tmpkey));
 2797                 error = copyin(ireq->i_data, tmpkey, ireq->i_len);
 2798                 if (error)
 2799                         break;
 2800                 ieee80211_key_update_begin(vap);
 2801                 k->wk_keyix = kid;      /* NB: force fixed key id */
 2802                 if (ieee80211_crypto_newkey(vap, IEEE80211_CIPHER_WEP,
 2803                     IEEE80211_KEY_XMIT | IEEE80211_KEY_RECV, k)) {
 2804                         k->wk_keylen = ireq->i_len;
 2805                         memcpy(k->wk_key, tmpkey, sizeof(tmpkey));
 2806                         IEEE80211_ADDR_COPY(k->wk_macaddr, vap->iv_myaddr);
 2807                         if  (!ieee80211_crypto_setkey(vap, k))
 2808                                 error = EINVAL;
 2809                 } else
 2810                         error = EINVAL;
 2811                 ieee80211_key_update_end(vap);
 2812                 break;
 2813         case IEEE80211_IOC_WEPTXKEY:
 2814                 kid = (u_int) ireq->i_val;
 2815                 if (kid >= IEEE80211_WEP_NKID &&
 2816                     (uint16_t) kid != IEEE80211_KEYIX_NONE)
 2817                         return EINVAL;
 2818                 /*
 2819                  * Firmware devices may need to be told about an explicit
 2820                  * key index here, versus just inferring it from the
 2821                  * key set / change.  Since we may also need to pause
 2822                  * things like transmit before the key is updated,
 2823                  * give the driver a chance to flush things by tying
 2824                  * into key update begin/end.
 2825                  */
 2826                 ieee80211_key_update_begin(vap);
 2827                 ieee80211_crypto_set_deftxkey(vap, kid);
 2828                 ieee80211_key_update_end(vap);
 2829                 break;
 2830         case IEEE80211_IOC_AUTHMODE:
 2831                 switch (ireq->i_val) {
 2832                 case IEEE80211_AUTH_WPA:
 2833                 case IEEE80211_AUTH_8021X:      /* 802.1x */
 2834                 case IEEE80211_AUTH_OPEN:       /* open */
 2835                 case IEEE80211_AUTH_SHARED:     /* shared-key */
 2836                 case IEEE80211_AUTH_AUTO:       /* auto */
 2837                         auth = ieee80211_authenticator_get(ireq->i_val);
 2838                         if (auth == NULL)
 2839                                 return EINVAL;
 2840                         break;
 2841                 default:
 2842                         return EINVAL;
 2843                 }
 2844                 switch (ireq->i_val) {
 2845                 case IEEE80211_AUTH_WPA:        /* WPA w/ 802.1x */
 2846                         vap->iv_flags |= IEEE80211_F_PRIVACY;
 2847                         ireq->i_val = IEEE80211_AUTH_8021X;
 2848                         break;
 2849                 case IEEE80211_AUTH_OPEN:       /* open */
 2850                         vap->iv_flags &= ~(IEEE80211_F_WPA|IEEE80211_F_PRIVACY);
 2851                         break;
 2852                 case IEEE80211_AUTH_SHARED:     /* shared-key */
 2853                 case IEEE80211_AUTH_8021X:      /* 802.1x */
 2854                         vap->iv_flags &= ~IEEE80211_F_WPA;
 2855                         /* both require a key so mark the PRIVACY capability */
 2856                         vap->iv_flags |= IEEE80211_F_PRIVACY;
 2857                         break;
 2858                 case IEEE80211_AUTH_AUTO:       /* auto */
 2859                         vap->iv_flags &= ~IEEE80211_F_WPA;
 2860                         /* XXX PRIVACY handling? */
 2861                         /* XXX what's the right way to do this? */
 2862                         break;
 2863                 }
 2864                 /* NB: authenticator attach/detach happens on state change */
 2865                 vap->iv_bss->ni_authmode = ireq->i_val;
 2866                 /* XXX mixed/mode/usage? */
 2867                 vap->iv_auth = auth;
 2868                 error = ENETRESET;
 2869                 break;
 2870         case IEEE80211_IOC_CHANNEL:
 2871                 error = ieee80211_ioctl_setchannel(vap, ireq);
 2872                 break;
 2873         case IEEE80211_IOC_POWERSAVE:
 2874                 switch (ireq->i_val) {
 2875                 case IEEE80211_POWERSAVE_OFF:
 2876                         if (vap->iv_flags & IEEE80211_F_PMGTON) {
 2877                                 ieee80211_syncflag(vap, -IEEE80211_F_PMGTON);
 2878                                 error = ERESTART;
 2879                         }
 2880                         break;
 2881                 case IEEE80211_POWERSAVE_ON:
 2882                         if ((vap->iv_caps & IEEE80211_C_PMGT) == 0)
 2883                                 error = EOPNOTSUPP;
 2884                         else if ((vap->iv_flags & IEEE80211_F_PMGTON) == 0) {
 2885                                 ieee80211_syncflag(vap, IEEE80211_F_PMGTON);
 2886                                 error = ERESTART;
 2887                         }
 2888                         break;
 2889                 default:
 2890                         error = EINVAL;
 2891                         break;
 2892                 }
 2893                 break;
 2894         case IEEE80211_IOC_POWERSAVESLEEP:
 2895                 if (ireq->i_val < 0)
 2896                         return EINVAL;
 2897                 ic->ic_lintval = ireq->i_val;
 2898                 error = ERESTART;
 2899                 break;
 2900         case IEEE80211_IOC_RTSTHRESHOLD:
 2901                 if (!(IEEE80211_RTS_MIN <= ireq->i_val &&
 2902                       ireq->i_val <= IEEE80211_RTS_MAX))
 2903                         return EINVAL;
 2904                 vap->iv_rtsthreshold = ireq->i_val;
 2905                 error = ERESTART;
 2906                 break;
 2907         case IEEE80211_IOC_PROTMODE:
 2908                 if (ireq->i_val > IEEE80211_PROT_RTSCTS)
 2909                         return EINVAL;
 2910                 ic->ic_protmode = (enum ieee80211_protmode)ireq->i_val;
 2911                 /* NB: if not operating in 11g this can wait */
 2912                 if (ic->ic_bsschan != IEEE80211_CHAN_ANYC &&
 2913                     IEEE80211_IS_CHAN_ANYG(ic->ic_bsschan))
 2914                         error = ERESTART;
 2915                 break;
 2916         case IEEE80211_IOC_TXPOWER:
 2917                 if ((ic->ic_caps & IEEE80211_C_TXPMGT) == 0)
 2918                         return EOPNOTSUPP;
 2919                 if (!(IEEE80211_TXPOWER_MIN <= ireq->i_val &&
 2920                       ireq->i_val <= IEEE80211_TXPOWER_MAX))
 2921                         return EINVAL;
 2922                 ic->ic_txpowlimit = ireq->i_val;
 2923                 error = ERESTART;
 2924                 break;
 2925         case IEEE80211_IOC_ROAMING:
 2926                 if (!(IEEE80211_ROAMING_DEVICE <= ireq->i_val &&
 2927                     ireq->i_val <= IEEE80211_ROAMING_MANUAL))
 2928                         return EINVAL;
 2929                 vap->iv_roaming = (enum ieee80211_roamingmode)ireq->i_val;
 2930                 /* XXXX reset? */
 2931                 break;
 2932         case IEEE80211_IOC_PRIVACY:
 2933                 if (ireq->i_val) {
 2934                         /* XXX check for key state? */
 2935                         vap->iv_flags |= IEEE80211_F_PRIVACY;
 2936                 } else
 2937                         vap->iv_flags &= ~IEEE80211_F_PRIVACY;
 2938                 /* XXX ERESTART? */
 2939                 break;
 2940         case IEEE80211_IOC_DROPUNENCRYPTED:
 2941                 if (ireq->i_val)
 2942                         vap->iv_flags |= IEEE80211_F_DROPUNENC;
 2943                 else
 2944                         vap->iv_flags &= ~IEEE80211_F_DROPUNENC;
 2945                 /* XXX ERESTART? */
 2946                 break;
 2947         case IEEE80211_IOC_WPAKEY:
 2948                 error = ieee80211_ioctl_setkey(vap, ireq);
 2949                 break;
 2950         case IEEE80211_IOC_DELKEY:
 2951                 error = ieee80211_ioctl_delkey(vap, ireq);
 2952                 break;
 2953         case IEEE80211_IOC_MLME:
 2954                 error = ieee80211_ioctl_setmlme(vap, ireq);
 2955                 break;
 2956         case IEEE80211_IOC_COUNTERMEASURES:
 2957                 if (ireq->i_val) {
 2958                         if ((vap->iv_flags & IEEE80211_F_WPA) == 0)
 2959                                 return EOPNOTSUPP;
 2960                         vap->iv_flags |= IEEE80211_F_COUNTERM;
 2961                 } else
 2962                         vap->iv_flags &= ~IEEE80211_F_COUNTERM;
 2963                 /* XXX ERESTART? */
 2964                 break;
 2965         case IEEE80211_IOC_WPA:
 2966                 if (ireq->i_val > 3)
 2967                         return EINVAL;
 2968                 /* XXX verify ciphers available */
 2969                 flags = vap->iv_flags & ~IEEE80211_F_WPA;
 2970                 switch (ireq->i_val) {
 2971                 case 0:
 2972                         /* wpa_supplicant calls this to clear the WPA config */
 2973                         break;
 2974                 case 1:
 2975                         if (!(vap->iv_caps & IEEE80211_C_WPA1))
 2976                                 return EOPNOTSUPP;
 2977                         flags |= IEEE80211_F_WPA1;
 2978                         break;
 2979                 case 2:
 2980                         if (!(vap->iv_caps & IEEE80211_C_WPA2))
 2981                                 return EOPNOTSUPP;
 2982                         flags |= IEEE80211_F_WPA2;
 2983                         break;
 2984                 case 3:
 2985                         if ((vap->iv_caps & IEEE80211_C_WPA) != IEEE80211_C_WPA)
 2986                                 return EOPNOTSUPP;
 2987                         flags |= IEEE80211_F_WPA1 | IEEE80211_F_WPA2;
 2988                         break;
 2989                 default:        /*  Can't set any -> error */
 2990                         return EOPNOTSUPP;
 2991                 }
 2992                 vap->iv_flags = flags;
 2993                 error = ERESTART;       /* NB: can change beacon frame */
 2994                 break;
 2995         case IEEE80211_IOC_WME:
 2996                 if (ireq->i_val) {
 2997                         if ((vap->iv_caps & IEEE80211_C_WME) == 0)
 2998                                 return EOPNOTSUPP;
 2999                         ieee80211_syncflag(vap, IEEE80211_F_WME);
 3000                 } else
 3001                         ieee80211_syncflag(vap, -IEEE80211_F_WME);
 3002                 error = ERESTART;       /* NB: can change beacon frame */
 3003                 break;
 3004         case IEEE80211_IOC_HIDESSID:
 3005                 if (ireq->i_val)
 3006                         vap->iv_flags |= IEEE80211_F_HIDESSID;
 3007                 else
 3008                         vap->iv_flags &= ~IEEE80211_F_HIDESSID;
 3009                 error = ERESTART;               /* XXX ENETRESET? */
 3010                 break;
 3011         case IEEE80211_IOC_APBRIDGE:
 3012                 if (ireq->i_val == 0)
 3013                         vap->iv_flags |= IEEE80211_F_NOBRIDGE;
 3014                 else
 3015                         vap->iv_flags &= ~IEEE80211_F_NOBRIDGE;
 3016                 break;
 3017         case IEEE80211_IOC_BSSID:
 3018                 if (ireq->i_len != sizeof(tmpbssid))
 3019                         return EINVAL;
 3020                 error = copyin(ireq->i_data, tmpbssid, ireq->i_len);
 3021                 if (error)
 3022                         break;
 3023                 IEEE80211_ADDR_COPY(vap->iv_des_bssid, tmpbssid);
 3024                 if (IEEE80211_ADDR_EQ(vap->iv_des_bssid, zerobssid))
 3025                         vap->iv_flags &= ~IEEE80211_F_DESBSSID;
 3026                 else
 3027                         vap->iv_flags |= IEEE80211_F_DESBSSID;
 3028                 error = ENETRESET;
 3029                 break;
 3030         case IEEE80211_IOC_CHANLIST:
 3031                 error = ieee80211_ioctl_setchanlist(vap, ireq);
 3032                 break;
 3033 #define OLD_IEEE80211_IOC_SCAN_REQ      23
 3034 #ifdef OLD_IEEE80211_IOC_SCAN_REQ
 3035         case OLD_IEEE80211_IOC_SCAN_REQ:
 3036                 IEEE80211_DPRINTF(vap, IEEE80211_MSG_SCAN,
 3037                         "%s: active scan request\n", __func__);
 3038                 /*
 3039                  * If we are in INIT state then the driver has never
 3040                  * had a chance to setup hardware state to do a scan;
 3041                  * use the state machine to get us up the SCAN state.
 3042                  * Otherwise just invoke the scan machinery to start
 3043                  * a one-time scan.
 3044                  */
 3045                 if (vap->iv_state == IEEE80211_S_INIT)
 3046                         ieee80211_new_state(vap, IEEE80211_S_SCAN, 0);
 3047                 else
 3048                         (void) ieee80211_start_scan(vap,
 3049                                 IEEE80211_SCAN_ACTIVE |
 3050                                 IEEE80211_SCAN_NOPICK |
 3051                                 IEEE80211_SCAN_ONCE,
 3052                                 IEEE80211_SCAN_FOREVER, 0, 0,
 3053                                 /* XXX use ioctl params */
 3054                                 vap->iv_des_nssid, vap->iv_des_ssid);
 3055                 break;
 3056 #endif /* OLD_IEEE80211_IOC_SCAN_REQ */
 3057         case IEEE80211_IOC_SCAN_REQ:
 3058                 error = ieee80211_ioctl_scanreq(vap, ireq);
 3059                 break;
 3060         case IEEE80211_IOC_SCAN_CANCEL:
 3061                 IEEE80211_DPRINTF(vap, IEEE80211_MSG_SCAN,
 3062                     "%s: cancel scan\n", __func__);
 3063                 ieee80211_cancel_scan(vap);
 3064                 break;
 3065         case IEEE80211_IOC_HTCONF:
 3066                 if (ireq->i_val & 1)
 3067                         ieee80211_syncflag_ht(vap, IEEE80211_FHT_HT);
 3068                 else
 3069                         ieee80211_syncflag_ht(vap, -IEEE80211_FHT_HT);
 3070                 if (ireq->i_val & 2)
 3071                         ieee80211_syncflag_ht(vap, IEEE80211_FHT_USEHT40);
 3072                 else
 3073                         ieee80211_syncflag_ht(vap, -IEEE80211_FHT_USEHT40);
 3074                 error = ENETRESET;
 3075                 break;
 3076         case IEEE80211_IOC_ADDMAC:
 3077         case IEEE80211_IOC_DELMAC:
 3078                 error = ieee80211_ioctl_macmac(vap, ireq);
 3079                 break;
 3080         case IEEE80211_IOC_MACCMD:
 3081                 error = ieee80211_ioctl_setmaccmd(vap, ireq);
 3082                 break;
 3083         case IEEE80211_IOC_STA_STATS:
 3084                 error = ieee80211_ioctl_setstastats(vap, ireq);
 3085                 break;
 3086         case IEEE80211_IOC_STA_TXPOW:
 3087                 error = ieee80211_ioctl_setstatxpow(vap, ireq);
 3088                 break;
 3089         case IEEE80211_IOC_WME_CWMIN:           /* WME: CWmin */
 3090         case IEEE80211_IOC_WME_CWMAX:           /* WME: CWmax */
 3091         case IEEE80211_IOC_WME_AIFS:            /* WME: AIFS */
 3092         case IEEE80211_IOC_WME_TXOPLIMIT:       /* WME: txops limit */
 3093         case IEEE80211_IOC_WME_ACM:             /* WME: ACM (bss only) */
 3094         case IEEE80211_IOC_WME_ACKPOLICY:       /* WME: ACK policy (!bss only) */
 3095                 error = ieee80211_ioctl_setwmeparam(vap, ireq);
 3096                 break;
 3097         case IEEE80211_IOC_DTIM_PERIOD:
 3098                 if (vap->iv_opmode != IEEE80211_M_HOSTAP &&
 3099                     vap->iv_opmode != IEEE80211_M_MBSS &&
 3100                     vap->iv_opmode != IEEE80211_M_IBSS)
 3101                         return EINVAL;
 3102                 if (IEEE80211_DTIM_MIN <= ireq->i_val &&
 3103                     ireq->i_val <= IEEE80211_DTIM_MAX) {
 3104                         vap->iv_dtim_period = ireq->i_val;
 3105                         error = ENETRESET;              /* requires restart */
 3106                 } else
 3107                         error = EINVAL;
 3108                 break;
 3109         case IEEE80211_IOC_BEACON_INTERVAL:
 3110                 if (vap->iv_opmode != IEEE80211_M_HOSTAP &&
 3111                     vap->iv_opmode != IEEE80211_M_MBSS &&
 3112                     vap->iv_opmode != IEEE80211_M_IBSS)
 3113                         return EINVAL;
 3114                 if (IEEE80211_BINTVAL_MIN <= ireq->i_val &&
 3115                     ireq->i_val <= IEEE80211_BINTVAL_MAX) {
 3116                         ic->ic_bintval = ireq->i_val;
 3117                         error = ENETRESET;              /* requires restart */
 3118                 } else
 3119                         error = EINVAL;
 3120                 break;
 3121         case IEEE80211_IOC_PUREG:
 3122                 if (ireq->i_val)
 3123                         vap->iv_flags |= IEEE80211_F_PUREG;
 3124                 else
 3125                         vap->iv_flags &= ~IEEE80211_F_PUREG;
 3126                 /* NB: reset only if we're operating on an 11g channel */
 3127                 if (isvap11g(vap))
 3128                         error = ENETRESET;
 3129                 break;
 3130         case IEEE80211_IOC_QUIET:
 3131                 vap->iv_quiet= ireq->i_val;
 3132                 break;
 3133         case IEEE80211_IOC_QUIET_COUNT:
 3134                 vap->iv_quiet_count=ireq->i_val;
 3135                 break;
 3136         case IEEE80211_IOC_QUIET_PERIOD:
 3137                 vap->iv_quiet_period=ireq->i_val;
 3138                 break;
 3139         case IEEE80211_IOC_QUIET_OFFSET:
 3140                 vap->iv_quiet_offset=ireq->i_val;
 3141                 break;
 3142         case IEEE80211_IOC_QUIET_DUR:
 3143                 if(ireq->i_val < vap->iv_bss->ni_intval)
 3144                         vap->iv_quiet_duration = ireq->i_val;
 3145                 else
 3146                         error = EINVAL;
 3147                 break;
 3148         case IEEE80211_IOC_BGSCAN:
 3149                 if (ireq->i_val) {
 3150                         if ((vap->iv_caps & IEEE80211_C_BGSCAN) == 0)
 3151                                 return EOPNOTSUPP;
 3152                         vap->iv_flags |= IEEE80211_F_BGSCAN;
 3153                 } else
 3154                         vap->iv_flags &= ~IEEE80211_F_BGSCAN;
 3155                 break;
 3156         case IEEE80211_IOC_BGSCAN_IDLE:
 3157                 if (ireq->i_val >= IEEE80211_BGSCAN_IDLE_MIN)
 3158                         vap->iv_bgscanidle = ireq->i_val*hz/1000;
 3159                 else
 3160                         error = EINVAL;
 3161                 break;
 3162         case IEEE80211_IOC_BGSCAN_INTERVAL:
 3163                 if (ireq->i_val >= IEEE80211_BGSCAN_INTVAL_MIN)
 3164                         vap->iv_bgscanintvl = ireq->i_val*hz;
 3165                 else
 3166                         error = EINVAL;
 3167                 break;
 3168         case IEEE80211_IOC_SCANVALID:
 3169                 if (ireq->i_val >= IEEE80211_SCAN_VALID_MIN)
 3170                         vap->iv_scanvalid = ireq->i_val*hz;
 3171                 else
 3172                         error = EINVAL;
 3173                 break;
 3174         case IEEE80211_IOC_FRAGTHRESHOLD:
 3175                 if ((vap->iv_caps & IEEE80211_C_TXFRAG) == 0 &&
 3176                     ireq->i_val != IEEE80211_FRAG_MAX)
 3177                         return EOPNOTSUPP;
 3178                 if (!(IEEE80211_FRAG_MIN <= ireq->i_val &&
 3179                       ireq->i_val <= IEEE80211_FRAG_MAX))
 3180                         return EINVAL;
 3181                 vap->iv_fragthreshold = ireq->i_val;
 3182                 error = ERESTART;
 3183                 break;
 3184         case IEEE80211_IOC_BURST:
 3185                 if (ireq->i_val) {
 3186                         if ((vap->iv_caps & IEEE80211_C_BURST) == 0)
 3187                                 return EOPNOTSUPP;
 3188                         ieee80211_syncflag(vap, IEEE80211_F_BURST);
 3189                 } else
 3190                         ieee80211_syncflag(vap, -IEEE80211_F_BURST);
 3191                 error = ERESTART;
 3192                 break;
 3193         case IEEE80211_IOC_BMISSTHRESHOLD:
 3194                 if (!(IEEE80211_HWBMISS_MIN <= ireq->i_val &&
 3195                       ireq->i_val <= IEEE80211_HWBMISS_MAX))
 3196                         return EINVAL;
 3197                 vap->iv_bmissthreshold = ireq->i_val;
 3198                 error = ERESTART;
 3199                 break;
 3200         case IEEE80211_IOC_CURCHAN:
 3201                 error = ieee80211_ioctl_setcurchan(vap, ireq);
 3202                 break;
 3203         case IEEE80211_IOC_SHORTGI:
 3204                 if (ireq->i_val) {
 3205 #define IEEE80211_HTCAP_SHORTGI \
 3206         (IEEE80211_HTCAP_SHORTGI20 | IEEE80211_HTCAP_SHORTGI40)
 3207                         if (((ireq->i_val ^ vap->iv_htcaps) & IEEE80211_HTCAP_SHORTGI) != 0)
 3208                                 return EINVAL;
 3209                         if (ireq->i_val & IEEE80211_HTCAP_SHORTGI20)
 3210                                 vap->iv_flags_ht |= IEEE80211_FHT_SHORTGI20;
 3211                         if (ireq->i_val & IEEE80211_HTCAP_SHORTGI40)
 3212                                 vap->iv_flags_ht |= IEEE80211_FHT_SHORTGI40;
 3213 #undef IEEE80211_HTCAP_SHORTGI
 3214                 } else
 3215                         vap->iv_flags_ht &=
 3216                             ~(IEEE80211_FHT_SHORTGI20 | IEEE80211_FHT_SHORTGI40);
 3217                 error = ERESTART;
 3218                 break;
 3219         case IEEE80211_IOC_AMPDU:
 3220                 if (ireq->i_val && (vap->iv_htcaps & IEEE80211_HTC_AMPDU) == 0)
 3221                         return EINVAL;
 3222                 if (ireq->i_val & 1)
 3223                         vap->iv_flags_ht |= IEEE80211_FHT_AMPDU_TX;
 3224                 else
 3225                         vap->iv_flags_ht &= ~IEEE80211_FHT_AMPDU_TX;
 3226                 if (ireq->i_val & 2)
 3227                         vap->iv_flags_ht |= IEEE80211_FHT_AMPDU_RX;
 3228                 else
 3229                         vap->iv_flags_ht &= ~IEEE80211_FHT_AMPDU_RX;
 3230                 /* NB: reset only if we're operating on an 11n channel */
 3231                 if (isvapht(vap))
 3232                         error = ERESTART;
 3233                 break;
 3234         case IEEE80211_IOC_AMPDU_LIMIT:
 3235                 /* XXX TODO: figure out ampdu_limit versus ampdu_rxmax */
 3236                 if (!(IEEE80211_HTCAP_MAXRXAMPDU_8K <= ireq->i_val &&
 3237                       ireq->i_val <= IEEE80211_HTCAP_MAXRXAMPDU_64K))
 3238                         return EINVAL;
 3239                 if (vap->iv_opmode == IEEE80211_M_HOSTAP)
 3240                         vap->iv_ampdu_rxmax = ireq->i_val;
 3241                 else
 3242                         vap->iv_ampdu_limit = ireq->i_val;
 3243                 error = ERESTART;
 3244                 break;
 3245         case IEEE80211_IOC_AMPDU_DENSITY:
 3246                 if (!(IEEE80211_HTCAP_MPDUDENSITY_NA <= ireq->i_val &&
 3247                       ireq->i_val <= IEEE80211_HTCAP_MPDUDENSITY_16))
 3248                         return EINVAL;
 3249                 vap->iv_ampdu_density = ireq->i_val;
 3250                 error = ERESTART;
 3251                 break;
 3252         case IEEE80211_IOC_AMSDU:
 3253                 if (ireq->i_val && (vap->iv_htcaps & IEEE80211_HTC_AMSDU) == 0)
 3254                         return EINVAL;
 3255                 if (ireq->i_val & 1)
 3256                         vap->iv_flags_ht |= IEEE80211_FHT_AMSDU_TX;
 3257                 else
 3258                         vap->iv_flags_ht &= ~IEEE80211_FHT_AMSDU_TX;
 3259                 if (ireq->i_val & 2)
 3260                         vap->iv_flags_ht |= IEEE80211_FHT_AMSDU_RX;
 3261                 else
 3262                         vap->iv_flags_ht &= ~IEEE80211_FHT_AMSDU_RX;
 3263                 /* NB: reset only if we're operating on an 11n channel */
 3264                 if (isvapht(vap))
 3265                         error = ERESTART;
 3266                 break;
 3267         case IEEE80211_IOC_AMSDU_LIMIT:
 3268                 /* XXX validate */
 3269                 vap->iv_amsdu_limit = ireq->i_val;      /* XXX truncation? */
 3270                 break;
 3271         case IEEE80211_IOC_PUREN:
 3272                 if (ireq->i_val) {
 3273                         if ((vap->iv_flags_ht & IEEE80211_FHT_HT) == 0)
 3274                                 return EINVAL;
 3275                         vap->iv_flags_ht |= IEEE80211_FHT_PUREN;
 3276                 } else
 3277                         vap->iv_flags_ht &= ~IEEE80211_FHT_PUREN;
 3278                 /* NB: reset only if we're operating on an 11n channel */
 3279                 if (isvapht(vap))
 3280                         error = ERESTART;
 3281                 break;
 3282         case IEEE80211_IOC_DOTH:
 3283                 if (ireq->i_val) {
 3284 #if 0
 3285                         /* XXX no capability */
 3286                         if ((vap->iv_caps & IEEE80211_C_DOTH) == 0)
 3287                                 return EOPNOTSUPP;
 3288 #endif
 3289                         vap->iv_flags |= IEEE80211_F_DOTH;
 3290                 } else
 3291                         vap->iv_flags &= ~IEEE80211_F_DOTH;
 3292                 error = ENETRESET;
 3293                 break;
 3294         case IEEE80211_IOC_REGDOMAIN:
 3295                 error = ieee80211_ioctl_setregdomain(vap, ireq);
 3296                 break;
 3297         case IEEE80211_IOC_ROAM:
 3298                 error = ieee80211_ioctl_setroam(vap, ireq);
 3299                 break;
 3300         case IEEE80211_IOC_TXPARAMS:
 3301                 error = ieee80211_ioctl_settxparams(vap, ireq);
 3302                 break;
 3303         case IEEE80211_IOC_HTCOMPAT:
 3304                 if (ireq->i_val) {
 3305                         if ((vap->iv_flags_ht & IEEE80211_FHT_HT) == 0)
 3306                                 return EOPNOTSUPP;
 3307                         vap->iv_flags_ht |= IEEE80211_FHT_HTCOMPAT;
 3308                 } else
 3309                         vap->iv_flags_ht &= ~IEEE80211_FHT_HTCOMPAT;
 3310                 /* NB: reset only if we're operating on an 11n channel */
 3311                 if (isvapht(vap))
 3312                         error = ERESTART;
 3313                 break;
 3314         case IEEE80211_IOC_DWDS:
 3315                 if (ireq->i_val) {
 3316                         /* NB: DWDS only makes sense for WDS-capable devices */
 3317                         if ((ic->ic_caps & IEEE80211_C_WDS) == 0)
 3318                                 return EOPNOTSUPP;
 3319                         /* NB: DWDS is used only with ap+sta vaps */
 3320                         if (vap->iv_opmode != IEEE80211_M_HOSTAP &&
 3321                             vap->iv_opmode != IEEE80211_M_STA)
 3322                                 return EINVAL;
 3323                         vap->iv_flags |= IEEE80211_F_DWDS;
 3324                         if (vap->iv_opmode == IEEE80211_M_STA)
 3325                                 vap->iv_flags_ext |= IEEE80211_FEXT_4ADDR;
 3326                 } else {
 3327                         vap->iv_flags &= ~IEEE80211_F_DWDS;
 3328                         if (vap->iv_opmode == IEEE80211_M_STA)
 3329                                 vap->iv_flags_ext &= ~IEEE80211_FEXT_4ADDR;
 3330                 }
 3331                 break;
 3332         case IEEE80211_IOC_INACTIVITY:
 3333                 if (ireq->i_val)
 3334                         vap->iv_flags_ext |= IEEE80211_FEXT_INACT;
 3335                 else
 3336                         vap->iv_flags_ext &= ~IEEE80211_FEXT_INACT;
 3337                 break;
 3338         case IEEE80211_IOC_APPIE:
 3339                 error = ieee80211_ioctl_setappie(vap, ireq);
 3340                 break;
 3341         case IEEE80211_IOC_WPS:
 3342                 if (ireq->i_val) {
 3343                         if ((vap->iv_caps & IEEE80211_C_WPA) == 0)
 3344                                 return EOPNOTSUPP;
 3345                         vap->iv_flags_ext |= IEEE80211_FEXT_WPS;
 3346                 } else
 3347                         vap->iv_flags_ext &= ~IEEE80211_FEXT_WPS;
 3348                 break;
 3349         case IEEE80211_IOC_TSN:
 3350                 if (ireq->i_val) {
 3351                         if ((vap->iv_caps & IEEE80211_C_WPA) == 0)
 3352                                 return EOPNOTSUPP;
 3353                         vap->iv_flags_ext |= IEEE80211_FEXT_TSN;
 3354                 } else
 3355                         vap->iv_flags_ext &= ~IEEE80211_FEXT_TSN;
 3356                 break;
 3357         case IEEE80211_IOC_CHANSWITCH:
 3358                 error = ieee80211_ioctl_chanswitch(vap, ireq);
 3359                 break;
 3360         case IEEE80211_IOC_DFS:
 3361                 if (ireq->i_val) {
 3362                         if ((vap->iv_caps & IEEE80211_C_DFS) == 0)
 3363                                 return EOPNOTSUPP;
 3364                         /* NB: DFS requires 11h support */
 3365                         if ((vap->iv_flags & IEEE80211_F_DOTH) == 0)
 3366                                 return EINVAL;
 3367                         vap->iv_flags_ext |= IEEE80211_FEXT_DFS;
 3368                 } else
 3369                         vap->iv_flags_ext &= ~IEEE80211_FEXT_DFS;
 3370                 break;
 3371         case IEEE80211_IOC_DOTD:
 3372                 if (ireq->i_val)
 3373                         vap->iv_flags_ext |= IEEE80211_FEXT_DOTD;
 3374                 else
 3375                         vap->iv_flags_ext &= ~IEEE80211_FEXT_DOTD;
 3376                 if (vap->iv_opmode == IEEE80211_M_STA)
 3377                         error = ENETRESET;
 3378                 break;
 3379         case IEEE80211_IOC_HTPROTMODE:
 3380                 if (ireq->i_val > IEEE80211_PROT_RTSCTS)
 3381                         return EINVAL;
 3382                 ic->ic_htprotmode = ireq->i_val ?
 3383                     IEEE80211_PROT_RTSCTS : IEEE80211_PROT_NONE;
 3384                 /* NB: if not operating in 11n this can wait */
 3385                 if (isvapht(vap))
 3386                         error = ERESTART;
 3387                 break;
 3388         case IEEE80211_IOC_STA_VLAN:
 3389                 error = ieee80211_ioctl_setstavlan(vap, ireq);
 3390                 break;
 3391         case IEEE80211_IOC_SMPS:
 3392                 if ((ireq->i_val &~ IEEE80211_HTCAP_SMPS) != 0 ||
 3393                     ireq->i_val == 0x0008)      /* value of 2 is reserved */
 3394                         return EINVAL;
 3395                 if (ireq->i_val != IEEE80211_HTCAP_SMPS_OFF &&
 3396                     (vap->iv_htcaps & IEEE80211_HTC_SMPS) == 0)
 3397                         return EOPNOTSUPP;
 3398                 vap->iv_htcaps = (vap->iv_htcaps &~ IEEE80211_HTCAP_SMPS) |
 3399                         ireq->i_val;
 3400                 /* NB: if not operating in 11n this can wait */
 3401                 if (isvapht(vap))
 3402                         error = ERESTART;
 3403                 break;
 3404         case IEEE80211_IOC_RIFS:
 3405                 if (ireq->i_val != 0) {
 3406                         if ((vap->iv_htcaps & IEEE80211_HTC_RIFS) == 0)
 3407                                 return EOPNOTSUPP;
 3408                         vap->iv_flags_ht |= IEEE80211_FHT_RIFS;
 3409                 } else
 3410                         vap->iv_flags_ht &= ~IEEE80211_FHT_RIFS;
 3411                 /* NB: if not operating in 11n this can wait */
 3412                 if (isvapht(vap))
 3413                         error = ERESTART;
 3414                 break;
 3415         case IEEE80211_IOC_STBC:
 3416                 /* Check if we can do STBC TX/RX before changing the setting */
 3417                 if ((ireq->i_val & 1) &&
 3418                     ((vap->iv_htcaps & IEEE80211_HTCAP_TXSTBC) == 0))
 3419                         return EOPNOTSUPP;
 3420                 if ((ireq->i_val & 2) &&
 3421                     ((vap->iv_htcaps & IEEE80211_HTCAP_RXSTBC) == 0))
 3422                         return EOPNOTSUPP;
 3423 
 3424                 /* TX */
 3425                 if (ireq->i_val & 1)
 3426                         vap->iv_flags_ht |= IEEE80211_FHT_STBC_TX;
 3427                 else
 3428                         vap->iv_flags_ht &= ~IEEE80211_FHT_STBC_TX;
 3429 
 3430                 /* RX */
 3431                 if (ireq->i_val & 2)
 3432                         vap->iv_flags_ht |= IEEE80211_FHT_STBC_RX;
 3433                 else
 3434                         vap->iv_flags_ht &= ~IEEE80211_FHT_STBC_RX;
 3435 
 3436                 /* NB: reset only if we're operating on an 11n channel */
 3437                 if (isvapht(vap))
 3438                         error = ERESTART;
 3439                 break;
 3440         case IEEE80211_IOC_LDPC:
 3441                 /* Check if we can do LDPC TX/RX before changing the setting */
 3442                 if ((ireq->i_val & 1) &&
 3443                     (vap->iv_htcaps & IEEE80211_HTC_TXLDPC) == 0)
 3444                         return EOPNOTSUPP;
 3445                 if ((ireq->i_val & 2) &&
 3446                     (vap->iv_htcaps & IEEE80211_HTCAP_LDPC) == 0)
 3447                         return EOPNOTSUPP;
 3448 
 3449                 /* TX */
 3450                 if (ireq->i_val & 1)
 3451                         vap->iv_flags_ht |= IEEE80211_FHT_LDPC_TX;
 3452                 else
 3453                         vap->iv_flags_ht &= ~IEEE80211_FHT_LDPC_TX;
 3454 
 3455                 /* RX */
 3456                 if (ireq->i_val & 2)
 3457                         vap->iv_flags_ht |= IEEE80211_FHT_LDPC_RX;
 3458                 else
 3459                         vap->iv_flags_ht &= ~IEEE80211_FHT_LDPC_RX;
 3460 
 3461                 /* NB: reset only if we're operating on an 11n channel */
 3462                 if (isvapht(vap))
 3463                         error = ERESTART;
 3464                 break;
 3465 
 3466         /* VHT */
 3467         case IEEE80211_IOC_VHTCONF:
 3468                 if (ireq->i_val & 1)
 3469                         ieee80211_syncflag_vht(vap, IEEE80211_FVHT_VHT);
 3470                 else
 3471                         ieee80211_syncflag_vht(vap, -IEEE80211_FVHT_VHT);
 3472 
 3473                 if (ireq->i_val & 2)
 3474                         ieee80211_syncflag_vht(vap, IEEE80211_FVHT_USEVHT40);
 3475                 else
 3476                         ieee80211_syncflag_vht(vap, -IEEE80211_FVHT_USEVHT40);
 3477 
 3478                 if (ireq->i_val & 4)
 3479                         ieee80211_syncflag_vht(vap, IEEE80211_FVHT_USEVHT80);
 3480                 else
 3481                         ieee80211_syncflag_vht(vap, -IEEE80211_FVHT_USEVHT80);
 3482 
 3483                 if (ireq->i_val & 8)
 3484                         ieee80211_syncflag_vht(vap, IEEE80211_FVHT_USEVHT80P80);
 3485                 else
 3486                         ieee80211_syncflag_vht(vap, -IEEE80211_FVHT_USEVHT80P80);
 3487 
 3488                 if (ireq->i_val & 16)
 3489                         ieee80211_syncflag_vht(vap, IEEE80211_FVHT_USEVHT160);
 3490                 else
 3491                         ieee80211_syncflag_vht(vap, -IEEE80211_FVHT_USEVHT160);
 3492 
 3493                 error = ENETRESET;
 3494                 break;
 3495 
 3496         default:
 3497                 error = ieee80211_ioctl_setdefault(vap, ireq);
 3498                 break;
 3499         }
 3500         /*
 3501          * The convention is that ENETRESET means an operation
 3502          * requires a complete re-initialization of the device (e.g.
 3503          * changing something that affects the association state).
 3504          * ERESTART means the request may be handled with only a
 3505          * reload of the hardware state.  We hand ERESTART requests
 3506          * to the iv_reset callback so the driver can decide.  If
 3507          * a device does not fillin iv_reset then it defaults to one
 3508          * that returns ENETRESET.  Otherwise a driver may return
 3509          * ENETRESET (in which case a full reset will be done) or
 3510          * 0 to mean there's no need to do anything (e.g. when the
 3511          * change has no effect on the driver/device).
 3512          */
 3513         if (error == ERESTART)
 3514                 error = IFNET_IS_UP_RUNNING(vap->iv_ifp) ?
 3515                     vap->iv_reset(vap, ireq->i_type) : 0;
 3516         if (error == ENETRESET) {
 3517                 /* XXX need to re-think AUTO handling */
 3518                 if (IS_UP_AUTO(vap))
 3519                         ieee80211_init(vap);
 3520                 error = 0;
 3521         }
 3522         return error;
 3523 }
 3524 
 3525 int
 3526 ieee80211_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
 3527 {
 3528         struct ieee80211vap *vap = ifp->if_softc;
 3529         struct ieee80211com *ic = vap->iv_ic;
 3530         int error = 0, wait = 0, ic_used;
 3531         struct ifreq *ifr;
 3532         struct ifaddr *ifa;                     /* XXX */
 3533 
 3534         ic_used = (cmd != SIOCSIFMTU && cmd != SIOCG80211STATS);
 3535         if (ic_used && (error = ieee80211_com_vincref(vap)) != 0)
 3536                 return (error);
 3537 
 3538         switch (cmd) {
 3539         case SIOCSIFFLAGS:
 3540                 IEEE80211_LOCK(ic);
 3541                 if ((ifp->if_flags ^ vap->iv_ifflags) & IFF_PROMISC) {
 3542                         /*
 3543                          * Enable promiscuous mode when:
 3544                          * 1. Interface is not a member of bridge, or
 3545                          * 2. Requested by user, or
 3546                          * 3. In monitor (or adhoc-demo) mode.
 3547                          */
 3548                         if (ifp->if_bridge == NULL ||
 3549                             (ifp->if_flags & IFF_PPROMISC) != 0 ||
 3550                             vap->iv_opmode == IEEE80211_M_MONITOR ||
 3551                             (vap->iv_opmode == IEEE80211_M_AHDEMO &&
 3552                             (vap->iv_caps & IEEE80211_C_TDMA) == 0)) {
 3553                                 ieee80211_promisc(vap,
 3554                                     ifp->if_flags & IFF_PROMISC);
 3555                                 vap->iv_ifflags ^= IFF_PROMISC;
 3556                         }
 3557                 }
 3558                 if ((ifp->if_flags ^ vap->iv_ifflags) & IFF_ALLMULTI) {
 3559                         ieee80211_allmulti(vap, ifp->if_flags & IFF_ALLMULTI);
 3560                         vap->iv_ifflags ^= IFF_ALLMULTI;
 3561                 }
 3562                 if (ifp->if_flags & IFF_UP) {
 3563                         /*
 3564                          * Bring ourself up unless we're already operational.
 3565                          * If we're the first vap and the parent is not up
 3566                          * then it will automatically be brought up as a
 3567                          * side-effect of bringing ourself up.
 3568                          */
 3569                         if (vap->iv_state == IEEE80211_S_INIT) {
 3570                                 if (ic->ic_nrunning == 0)
 3571                                         wait = 1;
 3572                                 ieee80211_start_locked(vap);
 3573                         }
 3574                 } else if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
 3575                         /*
 3576                          * Stop ourself.  If we are the last vap to be
 3577                          * marked down the parent will also be taken down.
 3578                          */
 3579                         if (ic->ic_nrunning == 1)
 3580                                 wait = 1;
 3581                         ieee80211_stop_locked(vap);
 3582                 }
 3583                 IEEE80211_UNLOCK(ic);
 3584                 /* Wait for parent ioctl handler if it was queued */
 3585                 if (wait) {
 3586                         ieee80211_waitfor_parent(ic);
 3587 
 3588                         /*
 3589                          * Check if the MAC address was changed
 3590                          * via SIOCSIFLLADDR ioctl.
 3591                          *
 3592                          * NB: device may be detached during initialization;
 3593                          * use if_ioctl for existence check.
 3594                          */
 3595                         if_addr_rlock(ifp);
 3596                         if (ifp->if_ioctl == ieee80211_ioctl &&
 3597                             (ifp->if_flags & IFF_UP) == 0 &&
 3598                             !IEEE80211_ADDR_EQ(vap->iv_myaddr, IF_LLADDR(ifp)))
 3599                                 IEEE80211_ADDR_COPY(vap->iv_myaddr,
 3600                                     IF_LLADDR(ifp));
 3601                         if_addr_runlock(ifp);
 3602                 }
 3603                 break;
 3604         case SIOCADDMULTI:
 3605         case SIOCDELMULTI:
 3606                 ieee80211_runtask(ic, &ic->ic_mcast_task);
 3607                 break;
 3608         case SIOCSIFMEDIA:
 3609         case SIOCGIFMEDIA:
 3610                 ifr = (struct ifreq *)data;
 3611                 error = ifmedia_ioctl(ifp, ifr, &vap->iv_media, cmd);
 3612                 break;
 3613         case SIOCG80211:
 3614                 error = ieee80211_ioctl_get80211(vap, cmd,
 3615                                 (struct ieee80211req *) data);
 3616                 break;
 3617         case SIOCS80211:
 3618                 error = priv_check(curthread, PRIV_NET80211_MANAGE);
 3619                 if (error == 0)
 3620                         error = ieee80211_ioctl_set80211(vap, cmd,
 3621                                         (struct ieee80211req *) data);
 3622                 break;
 3623         case SIOCG80211STATS:
 3624                 ifr = (struct ifreq *)data;
 3625                 copyout(&vap->iv_stats, ifr_data_get_ptr(ifr),
 3626                     sizeof (vap->iv_stats));
 3627                 break;
 3628         case SIOCSIFMTU:
 3629                 ifr = (struct ifreq *)data;
 3630                 if (!(IEEE80211_MTU_MIN <= ifr->ifr_mtu &&
 3631                     ifr->ifr_mtu <= IEEE80211_MTU_MAX))
 3632                         error = EINVAL;
 3633                 else
 3634                         ifp->if_mtu = ifr->ifr_mtu;
 3635                 break;
 3636         case SIOCSIFADDR:
 3637                 /*
 3638                  * XXX Handle this directly so we can suppress if_init calls.
 3639                  * XXX This should be done in ether_ioctl but for the moment
 3640                  * XXX there are too many other parts of the system that
 3641                  * XXX set IFF_UP and so suppress if_init being called when
 3642                  * XXX it should be.
 3643                  */
 3644                 ifa = (struct ifaddr *) data;
 3645                 switch (ifa->ifa_addr->sa_family) {
 3646 #ifdef INET
 3647                 case AF_INET:
 3648                         if ((ifp->if_flags & IFF_UP) == 0) {
 3649                                 ifp->if_flags |= IFF_UP;
 3650                                 ifp->if_init(ifp->if_softc);
 3651                         }
 3652                         arp_ifinit(ifp, ifa);
 3653                         break;
 3654 #endif
 3655                 default:
 3656                         if ((ifp->if_flags & IFF_UP) == 0) {
 3657                                 ifp->if_flags |= IFF_UP;
 3658                                 ifp->if_init(ifp->if_softc);
 3659                         }
 3660                         break;
 3661                 }
 3662                 break;
 3663         default:
 3664                 /*
 3665                  * Pass unknown ioctls first to the driver, and if it
 3666                  * returns ENOTTY, then to the generic Ethernet handler.
 3667                  */
 3668                 if (ic->ic_ioctl != NULL &&
 3669                     (error = ic->ic_ioctl(ic, cmd, data)) != ENOTTY)
 3670                         break;
 3671                 error = ether_ioctl(ifp, cmd, data);
 3672                 break;
 3673         }
 3674 
 3675         if (ic_used)
 3676                 ieee80211_com_vdecref(vap);
 3677 
 3678         return (error);
 3679 }

Cache object: 06021bd1b877ee08cc442ffc7c2bf1d6


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