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  * Copyright (c) 2001 Atsushi Onoe
    3  * Copyright (c) 2002-2009 Sam Leffler, Errno Consulting
    4  * All rights reserved.
    5  *
    6  * Redistribution and use in source and binary forms, with or without
    7  * modification, are permitted provided that the following conditions
    8  * are met:
    9  * 1. Redistributions of source code must retain the above copyright
   10  *    notice, this list of conditions and the following disclaimer.
   11  * 2. Redistributions in binary form must reproduce the above copyright
   12  *    notice, this list of conditions and the following disclaimer in the
   13  *    documentation and/or other materials provided with the distribution.
   14  *
   15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
   16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   17  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   18  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
   19  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   20  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   21  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   22  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   24  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   25  */
   26 
   27 #include <sys/cdefs.h>
   28 __FBSDID("$FreeBSD: releng/8.0/sys/net80211/ieee80211_ioctl.c 195618 2009-07-11 15:02:45Z rpaulo $");
   29 
   30 /*
   31  * IEEE 802.11 ioctl support (FreeBSD-specific)
   32  */
   33 
   34 #include "opt_inet.h"
   35 #include "opt_ipx.h"
   36 #include "opt_wlan.h"
   37 
   38 #include <sys/endian.h>
   39 #include <sys/param.h>
   40 #include <sys/kernel.h>
   41 #include <sys/priv.h>
   42 #include <sys/socket.h>
   43 #include <sys/sockio.h>
   44 #include <sys/systm.h>
   45  
   46 #include <net/if.h>
   47 #include <net/if_dl.h>
   48 #include <net/if_media.h>
   49 #include <net/ethernet.h>
   50 
   51 #ifdef INET
   52 #include <netinet/in.h>
   53 #include <netinet/if_ether.h>
   54 #endif
   55 
   56 #ifdef IPX
   57 #include <netipx/ipx.h>
   58 #include <netipx/ipx_if.h>
   59 #endif
   60 
   61 #include <net80211/ieee80211_var.h>
   62 #include <net80211/ieee80211_ioctl.h>
   63 #include <net80211/ieee80211_regdomain.h>
   64 #include <net80211/ieee80211_input.h>
   65 
   66 #define IS_UP_AUTO(_vap) \
   67         (IFNET_IS_UP_RUNNING((_vap)->iv_ifp) && \
   68          (_vap)->iv_roaming == IEEE80211_ROAMING_AUTO)
   69 
   70 static const uint8_t zerobssid[IEEE80211_ADDR_LEN];
   71 static struct ieee80211_channel *findchannel(struct ieee80211com *,
   72                 int ieee, int mode);
   73 
   74 static __noinline int
   75 ieee80211_ioctl_getkey(struct ieee80211vap *vap, struct ieee80211req *ireq)
   76 {
   77         struct ieee80211com *ic = vap->iv_ic;
   78         struct ieee80211_node *ni;
   79         struct ieee80211req_key ik;
   80         struct ieee80211_key *wk;
   81         const struct ieee80211_cipher *cip;
   82         u_int kid;
   83         int error;
   84 
   85         if (ireq->i_len != sizeof(ik))
   86                 return EINVAL;
   87         error = copyin(ireq->i_data, &ik, sizeof(ik));
   88         if (error)
   89                 return error;
   90         kid = ik.ik_keyix;
   91         if (kid == IEEE80211_KEYIX_NONE) {
   92                 ni = ieee80211_find_vap_node(&ic->ic_sta, vap, ik.ik_macaddr);
   93                 if (ni == NULL)
   94                         return ENOENT;
   95                 wk = &ni->ni_ucastkey;
   96         } else {
   97                 if (kid >= IEEE80211_WEP_NKID)
   98                         return EINVAL;
   99                 wk = &vap->iv_nw_keys[kid];
  100                 IEEE80211_ADDR_COPY(&ik.ik_macaddr, vap->iv_bss->ni_macaddr);
  101                 ni = NULL;
  102         }
  103         cip = wk->wk_cipher;
  104         ik.ik_type = cip->ic_cipher;
  105         ik.ik_keylen = wk->wk_keylen;
  106         ik.ik_flags = wk->wk_flags & (IEEE80211_KEY_XMIT | IEEE80211_KEY_RECV);
  107         if (wk->wk_keyix == vap->iv_def_txkey)
  108                 ik.ik_flags |= IEEE80211_KEY_DEFAULT;
  109         if (priv_check(curthread, PRIV_NET80211_GETKEY) == 0) {
  110                 /* NB: only root can read key data */
  111                 ik.ik_keyrsc = wk->wk_keyrsc[IEEE80211_NONQOS_TID];
  112                 ik.ik_keytsc = wk->wk_keytsc;
  113                 memcpy(ik.ik_keydata, wk->wk_key, wk->wk_keylen);
  114                 if (cip->ic_cipher == IEEE80211_CIPHER_TKIP) {
  115                         memcpy(ik.ik_keydata+wk->wk_keylen,
  116                                 wk->wk_key + IEEE80211_KEYBUF_SIZE,
  117                                 IEEE80211_MICBUF_SIZE);
  118                         ik.ik_keylen += IEEE80211_MICBUF_SIZE;
  119                 }
  120         } else {
  121                 ik.ik_keyrsc = 0;
  122                 ik.ik_keytsc = 0;
  123                 memset(ik.ik_keydata, 0, sizeof(ik.ik_keydata));
  124         }
  125         if (ni != NULL)
  126                 ieee80211_free_node(ni);
  127         return copyout(&ik, ireq->i_data, sizeof(ik));
  128 }
  129 
  130 static __noinline int
  131 ieee80211_ioctl_getchanlist(struct ieee80211vap *vap, struct ieee80211req *ireq)
  132 {
  133         struct ieee80211com *ic = vap->iv_ic;
  134 
  135         if (sizeof(ic->ic_chan_active) < ireq->i_len)
  136                 ireq->i_len = sizeof(ic->ic_chan_active);
  137         return copyout(&ic->ic_chan_active, ireq->i_data, ireq->i_len);
  138 }
  139 
  140 static __noinline int
  141 ieee80211_ioctl_getchaninfo(struct ieee80211vap *vap, struct ieee80211req *ireq)
  142 {
  143         struct ieee80211com *ic = vap->iv_ic;
  144         int space;
  145 
  146         space = __offsetof(struct ieee80211req_chaninfo,
  147                         ic_chans[ic->ic_nchans]);
  148         if (space > ireq->i_len)
  149                 space = ireq->i_len;
  150         /* XXX assumes compatible layout */
  151         return copyout(&ic->ic_nchans, ireq->i_data, space);
  152 }
  153 
  154 static __noinline int
  155 ieee80211_ioctl_getwpaie(struct ieee80211vap *vap,
  156         struct ieee80211req *ireq, int req)
  157 {
  158         struct ieee80211_node *ni;
  159         struct ieee80211req_wpaie2 wpaie;
  160         int error;
  161 
  162         if (ireq->i_len < IEEE80211_ADDR_LEN)
  163                 return EINVAL;
  164         error = copyin(ireq->i_data, wpaie.wpa_macaddr, IEEE80211_ADDR_LEN);
  165         if (error != 0)
  166                 return error;
  167         ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap, wpaie.wpa_macaddr);
  168         if (ni == NULL)
  169                 return ENOENT;
  170         memset(wpaie.wpa_ie, 0, sizeof(wpaie.wpa_ie));
  171         if (ni->ni_ies.wpa_ie != NULL) {
  172                 int ielen = ni->ni_ies.wpa_ie[1] + 2;
  173                 if (ielen > sizeof(wpaie.wpa_ie))
  174                         ielen = sizeof(wpaie.wpa_ie);
  175                 memcpy(wpaie.wpa_ie, ni->ni_ies.wpa_ie, ielen);
  176         }
  177         if (req == IEEE80211_IOC_WPAIE2) {
  178                 memset(wpaie.rsn_ie, 0, sizeof(wpaie.rsn_ie));
  179                 if (ni->ni_ies.rsn_ie != NULL) {
  180                         int ielen = ni->ni_ies.rsn_ie[1] + 2;
  181                         if (ielen > sizeof(wpaie.rsn_ie))
  182                                 ielen = sizeof(wpaie.rsn_ie);
  183                         memcpy(wpaie.rsn_ie, ni->ni_ies.rsn_ie, ielen);
  184                 }
  185                 if (ireq->i_len > sizeof(struct ieee80211req_wpaie2))
  186                         ireq->i_len = sizeof(struct ieee80211req_wpaie2);
  187         } else {
  188                 /* compatibility op, may overwrite wpa ie */
  189                 /* XXX check ic_flags? */
  190                 if (ni->ni_ies.rsn_ie != NULL) {
  191                         int ielen = ni->ni_ies.rsn_ie[1] + 2;
  192                         if (ielen > sizeof(wpaie.wpa_ie))
  193                                 ielen = sizeof(wpaie.wpa_ie);
  194                         memcpy(wpaie.wpa_ie, ni->ni_ies.rsn_ie, ielen);
  195                 }
  196                 if (ireq->i_len > sizeof(struct ieee80211req_wpaie))
  197                         ireq->i_len = sizeof(struct ieee80211req_wpaie);
  198         }
  199         ieee80211_free_node(ni);
  200         return copyout(&wpaie, ireq->i_data, ireq->i_len);
  201 }
  202 
  203 static __noinline int
  204 ieee80211_ioctl_getstastats(struct ieee80211vap *vap, struct ieee80211req *ireq)
  205 {
  206         struct ieee80211_node *ni;
  207         uint8_t macaddr[IEEE80211_ADDR_LEN];
  208         const int off = __offsetof(struct ieee80211req_sta_stats, is_stats);
  209         int error;
  210 
  211         if (ireq->i_len < off)
  212                 return EINVAL;
  213         error = copyin(ireq->i_data, macaddr, IEEE80211_ADDR_LEN);
  214         if (error != 0)
  215                 return error;
  216         ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap, macaddr);
  217         if (ni == NULL)
  218                 return ENOENT;
  219         if (ireq->i_len > sizeof(struct ieee80211req_sta_stats))
  220                 ireq->i_len = sizeof(struct ieee80211req_sta_stats);
  221         /* NB: copy out only the statistics */
  222         error = copyout(&ni->ni_stats, (uint8_t *) ireq->i_data + off,
  223                         ireq->i_len - off);
  224         ieee80211_free_node(ni);
  225         return error;
  226 }
  227 
  228 struct scanreq {
  229         struct ieee80211req_scan_result *sr;
  230         size_t space;
  231 };
  232 
  233 static size_t
  234 scan_space(const struct ieee80211_scan_entry *se, int *ielen)
  235 {
  236         size_t len;
  237 
  238         *ielen = se->se_ies.len;
  239         /*
  240          * NB: ie's can be no more than 255 bytes and the max 802.11
  241          * packet is <3Kbytes so we are sure this doesn't overflow
  242          * 16-bits; if this is a concern we can drop the ie's.
  243          */
  244         len = sizeof(struct ieee80211req_scan_result) + se->se_ssid[1] +
  245             se->se_meshid[1] + *ielen;
  246         return roundup(len, sizeof(uint32_t));
  247 }
  248 
  249 static void
  250 get_scan_space(void *arg, const struct ieee80211_scan_entry *se)
  251 {
  252         struct scanreq *req = arg;
  253         int ielen;
  254 
  255         req->space += scan_space(se, &ielen);
  256 }
  257 
  258 static __noinline void
  259 get_scan_result(void *arg, const struct ieee80211_scan_entry *se)
  260 {
  261         struct scanreq *req = arg;
  262         struct ieee80211req_scan_result *sr;
  263         int ielen, len, nr, nxr;
  264         uint8_t *cp;
  265 
  266         len = scan_space(se, &ielen);
  267         if (len > req->space)
  268                 return;
  269 
  270         sr = req->sr;
  271         KASSERT(len <= 65535 && ielen <= 65535,
  272             ("len %u ssid %u ie %u", len, se->se_ssid[1], ielen));
  273         sr->isr_len = len;
  274         sr->isr_ie_off = sizeof(struct ieee80211req_scan_result);
  275         sr->isr_ie_len = ielen;
  276         sr->isr_freq = se->se_chan->ic_freq;
  277         sr->isr_flags = se->se_chan->ic_flags;
  278         sr->isr_rssi = se->se_rssi;
  279         sr->isr_noise = se->se_noise;
  280         sr->isr_intval = se->se_intval;
  281         sr->isr_capinfo = se->se_capinfo;
  282         sr->isr_erp = se->se_erp;
  283         IEEE80211_ADDR_COPY(sr->isr_bssid, se->se_bssid);
  284         nr = min(se->se_rates[1], IEEE80211_RATE_MAXSIZE);
  285         memcpy(sr->isr_rates, se->se_rates+2, nr);
  286         nxr = min(se->se_xrates[1], IEEE80211_RATE_MAXSIZE - nr);
  287         memcpy(sr->isr_rates+nr, se->se_xrates+2, nxr);
  288         sr->isr_nrates = nr + nxr;
  289 
  290         /* copy SSID */
  291         sr->isr_ssid_len = se->se_ssid[1];
  292         cp = ((uint8_t *)sr) + sr->isr_ie_off;
  293         memcpy(cp, se->se_ssid+2, sr->isr_ssid_len);
  294 
  295         /* copy mesh id */
  296         cp += sr->isr_ssid_len;
  297         sr->isr_meshid_len = se->se_meshid[1];
  298         memcpy(cp, se->se_meshid+2, sr->isr_meshid_len);
  299         cp += sr->isr_meshid_len;
  300 
  301         if (ielen)
  302                 memcpy(cp, se->se_ies.data, ielen);
  303 
  304         req->space -= len;
  305         req->sr = (struct ieee80211req_scan_result *)(((uint8_t *)sr) + len);
  306 }
  307 
  308 static __noinline int
  309 ieee80211_ioctl_getscanresults(struct ieee80211vap *vap,
  310         struct ieee80211req *ireq)
  311 {
  312         struct scanreq req;
  313         int error;
  314 
  315         if (ireq->i_len < sizeof(struct scanreq))
  316                 return EFAULT;
  317 
  318         error = 0;
  319         req.space = 0;
  320         ieee80211_scan_iterate(vap, get_scan_space, &req);
  321         if (req.space > ireq->i_len)
  322                 req.space = ireq->i_len;
  323         if (req.space > 0) {
  324                 size_t space;
  325                 void *p;
  326 
  327                 space = req.space;
  328                 /* XXX M_WAITOK after driver lock released */
  329                 p = malloc(space, M_TEMP, M_NOWAIT | M_ZERO);
  330                 if (p == NULL)
  331                         return ENOMEM;
  332                 req.sr = p;
  333                 ieee80211_scan_iterate(vap, get_scan_result, &req);
  334                 ireq->i_len = space - req.space;
  335                 error = copyout(p, ireq->i_data, ireq->i_len);
  336                 free(p, M_TEMP);
  337         } else
  338                 ireq->i_len = 0;
  339 
  340         return error;
  341 }
  342 
  343 struct stainforeq {
  344         struct ieee80211vap *vap;
  345         struct ieee80211req_sta_info *si;
  346         size_t  space;
  347 };
  348 
  349 static size_t
  350 sta_space(const struct ieee80211_node *ni, size_t *ielen)
  351 {
  352         *ielen = ni->ni_ies.len;
  353         return roundup(sizeof(struct ieee80211req_sta_info) + *ielen,
  354                       sizeof(uint32_t));
  355 }
  356 
  357 static void
  358 get_sta_space(void *arg, struct ieee80211_node *ni)
  359 {
  360         struct stainforeq *req = arg;
  361         size_t ielen;
  362 
  363         if (req->vap != ni->ni_vap)
  364                 return;
  365         if (ni->ni_vap->iv_opmode == IEEE80211_M_HOSTAP &&
  366             ni->ni_associd == 0)        /* only associated stations */
  367                 return;
  368         req->space += sta_space(ni, &ielen);
  369 }
  370 
  371 static __noinline void
  372 get_sta_info(void *arg, struct ieee80211_node *ni)
  373 {
  374         struct stainforeq *req = arg;
  375         struct ieee80211vap *vap = ni->ni_vap;
  376         struct ieee80211req_sta_info *si;
  377         size_t ielen, len;
  378         uint8_t *cp;
  379 
  380         if (req->vap != ni->ni_vap)
  381                 return;
  382         if (vap->iv_opmode == IEEE80211_M_HOSTAP &&
  383             ni->ni_associd == 0)        /* only associated stations */
  384                 return;
  385         if (ni->ni_chan == IEEE80211_CHAN_ANYC) /* XXX bogus entry */
  386                 return;
  387         len = sta_space(ni, &ielen);
  388         if (len > req->space)
  389                 return;
  390         si = req->si;
  391         si->isi_len = len;
  392         si->isi_ie_off = sizeof(struct ieee80211req_sta_info);
  393         si->isi_ie_len = ielen;
  394         si->isi_freq = ni->ni_chan->ic_freq;
  395         si->isi_flags = ni->ni_chan->ic_flags;
  396         si->isi_state = ni->ni_flags;
  397         si->isi_authmode = ni->ni_authmode;
  398         vap->iv_ic->ic_node_getsignal(ni, &si->isi_rssi, &si->isi_noise);
  399         vap->iv_ic->ic_node_getmimoinfo(ni, &si->isi_mimo);
  400         si->isi_capinfo = ni->ni_capinfo;
  401         si->isi_erp = ni->ni_erp;
  402         IEEE80211_ADDR_COPY(si->isi_macaddr, ni->ni_macaddr);
  403         si->isi_nrates = ni->ni_rates.rs_nrates;
  404         if (si->isi_nrates > 15)
  405                 si->isi_nrates = 15;
  406         memcpy(si->isi_rates, ni->ni_rates.rs_rates, si->isi_nrates);
  407         si->isi_txrate = ni->ni_txrate;
  408         if (si->isi_txrate & IEEE80211_RATE_MCS) {
  409                 const struct ieee80211_mcs_rates *mcs =
  410                     &ieee80211_htrates[ni->ni_txrate &~ IEEE80211_RATE_MCS];
  411                 if (IEEE80211_IS_CHAN_HT40(ni->ni_chan)) {
  412                         if (ni->ni_flags & IEEE80211_NODE_SGI40)
  413                                 si->isi_txmbps = mcs->ht40_rate_800ns;
  414                         else
  415                                 si->isi_txmbps = mcs->ht40_rate_400ns;
  416                 } else {
  417                         if (ni->ni_flags & IEEE80211_NODE_SGI20)
  418                                 si->isi_txmbps = mcs->ht20_rate_800ns;
  419                         else
  420                                 si->isi_txmbps = mcs->ht20_rate_400ns;
  421                 }
  422         } else
  423                 si->isi_txmbps = si->isi_txrate;
  424         si->isi_associd = ni->ni_associd;
  425         si->isi_txpower = ni->ni_txpower;
  426         si->isi_vlan = ni->ni_vlan;
  427         if (ni->ni_flags & IEEE80211_NODE_QOS) {
  428                 memcpy(si->isi_txseqs, ni->ni_txseqs, sizeof(ni->ni_txseqs));
  429                 memcpy(si->isi_rxseqs, ni->ni_rxseqs, sizeof(ni->ni_rxseqs));
  430         } else {
  431                 si->isi_txseqs[0] = ni->ni_txseqs[IEEE80211_NONQOS_TID];
  432                 si->isi_rxseqs[0] = ni->ni_rxseqs[IEEE80211_NONQOS_TID];
  433         }
  434         /* NB: leave all cases in case we relax ni_associd == 0 check */
  435         if (ieee80211_node_is_authorized(ni))
  436                 si->isi_inact = vap->iv_inact_run;
  437         else if (ni->ni_associd != 0 ||
  438             (vap->iv_opmode == IEEE80211_M_WDS &&
  439              (vap->iv_flags_ext & IEEE80211_FEXT_WDSLEGACY)))
  440                 si->isi_inact = vap->iv_inact_auth;
  441         else
  442                 si->isi_inact = vap->iv_inact_init;
  443         si->isi_inact = (si->isi_inact - ni->ni_inact) * IEEE80211_INACT_WAIT;
  444         si->isi_localid = ni->ni_mllid;
  445         si->isi_peerid = ni->ni_mlpid;
  446         si->isi_peerstate = ni->ni_mlstate;
  447 
  448         if (ielen) {
  449                 cp = ((uint8_t *)si) + si->isi_ie_off;
  450                 memcpy(cp, ni->ni_ies.data, ielen);
  451         }
  452 
  453         req->si = (struct ieee80211req_sta_info *)(((uint8_t *)si) + len);
  454         req->space -= len;
  455 }
  456 
  457 static __noinline int
  458 getstainfo_common(struct ieee80211vap *vap, struct ieee80211req *ireq,
  459         struct ieee80211_node *ni, int off)
  460 {
  461         struct ieee80211com *ic = vap->iv_ic;
  462         struct stainforeq req;
  463         size_t space;
  464         void *p;
  465         int error;
  466 
  467         error = 0;
  468         req.space = 0;
  469         req.vap = vap;
  470         if (ni == NULL)
  471                 ieee80211_iterate_nodes(&ic->ic_sta, get_sta_space, &req);
  472         else
  473                 get_sta_space(&req, ni);
  474         if (req.space > ireq->i_len)
  475                 req.space = ireq->i_len;
  476         if (req.space > 0) {
  477                 space = req.space;
  478                 /* XXX M_WAITOK after driver lock released */
  479                 p = malloc(space, M_TEMP, M_NOWAIT | M_ZERO);
  480                 if (p == NULL) {
  481                         error = ENOMEM;
  482                         goto bad;
  483                 }
  484                 req.si = p;
  485                 if (ni == NULL)
  486                         ieee80211_iterate_nodes(&ic->ic_sta, get_sta_info, &req);
  487                 else
  488                         get_sta_info(&req, ni);
  489                 ireq->i_len = space - req.space;
  490                 error = copyout(p, (uint8_t *) ireq->i_data+off, ireq->i_len);
  491                 free(p, M_TEMP);
  492         } else
  493                 ireq->i_len = 0;
  494 bad:
  495         if (ni != NULL)
  496                 ieee80211_free_node(ni);
  497         return error;
  498 }
  499 
  500 static __noinline int
  501 ieee80211_ioctl_getstainfo(struct ieee80211vap *vap, struct ieee80211req *ireq)
  502 {
  503         uint8_t macaddr[IEEE80211_ADDR_LEN];
  504         const int off = __offsetof(struct ieee80211req_sta_req, info);
  505         struct ieee80211_node *ni;
  506         int error;
  507 
  508         if (ireq->i_len < sizeof(struct ieee80211req_sta_req))
  509                 return EFAULT;
  510         error = copyin(ireq->i_data, macaddr, IEEE80211_ADDR_LEN);
  511         if (error != 0)
  512                 return error;
  513         if (IEEE80211_ADDR_EQ(macaddr, vap->iv_ifp->if_broadcastaddr)) {
  514                 ni = NULL;
  515         } else {
  516                 ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap, macaddr);
  517                 if (ni == NULL)
  518                         return ENOENT;
  519         }
  520         return getstainfo_common(vap, ireq, ni, off);
  521 }
  522 
  523 static __noinline int
  524 ieee80211_ioctl_getstatxpow(struct ieee80211vap *vap, struct ieee80211req *ireq)
  525 {
  526         struct ieee80211_node *ni;
  527         struct ieee80211req_sta_txpow txpow;
  528         int error;
  529 
  530         if (ireq->i_len != sizeof(txpow))
  531                 return EINVAL;
  532         error = copyin(ireq->i_data, &txpow, sizeof(txpow));
  533         if (error != 0)
  534                 return error;
  535         ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap, txpow.it_macaddr);
  536         if (ni == NULL)
  537                 return ENOENT;
  538         txpow.it_txpow = ni->ni_txpower;
  539         error = copyout(&txpow, ireq->i_data, sizeof(txpow));
  540         ieee80211_free_node(ni);
  541         return error;
  542 }
  543 
  544 static __noinline int
  545 ieee80211_ioctl_getwmeparam(struct ieee80211vap *vap, struct ieee80211req *ireq)
  546 {
  547         struct ieee80211com *ic = vap->iv_ic;
  548         struct ieee80211_wme_state *wme = &ic->ic_wme;
  549         struct wmeParams *wmep;
  550         int ac;
  551 
  552         if ((ic->ic_caps & IEEE80211_C_WME) == 0)
  553                 return EINVAL;
  554 
  555         ac = (ireq->i_len & IEEE80211_WMEPARAM_VAL);
  556         if (ac >= WME_NUM_AC)
  557                 ac = WME_AC_BE;
  558         if (ireq->i_len & IEEE80211_WMEPARAM_BSS)
  559                 wmep = &wme->wme_wmeBssChanParams.cap_wmeParams[ac];
  560         else
  561                 wmep = &wme->wme_wmeChanParams.cap_wmeParams[ac];
  562         switch (ireq->i_type) {
  563         case IEEE80211_IOC_WME_CWMIN:           /* WME: CWmin */
  564                 ireq->i_val = wmep->wmep_logcwmin;
  565                 break;
  566         case IEEE80211_IOC_WME_CWMAX:           /* WME: CWmax */
  567                 ireq->i_val = wmep->wmep_logcwmax;
  568                 break;
  569         case IEEE80211_IOC_WME_AIFS:            /* WME: AIFS */
  570                 ireq->i_val = wmep->wmep_aifsn;
  571                 break;
  572         case IEEE80211_IOC_WME_TXOPLIMIT:       /* WME: txops limit */
  573                 ireq->i_val = wmep->wmep_txopLimit;
  574                 break;
  575         case IEEE80211_IOC_WME_ACM:             /* WME: ACM (bss only) */
  576                 wmep = &wme->wme_wmeBssChanParams.cap_wmeParams[ac];
  577                 ireq->i_val = wmep->wmep_acm;
  578                 break;
  579         case IEEE80211_IOC_WME_ACKPOLICY:       /* WME: ACK policy (!bss only)*/
  580                 wmep = &wme->wme_wmeChanParams.cap_wmeParams[ac];
  581                 ireq->i_val = !wmep->wmep_noackPolicy;
  582                 break;
  583         }
  584         return 0;
  585 }
  586 
  587 static __noinline int
  588 ieee80211_ioctl_getmaccmd(struct ieee80211vap *vap, struct ieee80211req *ireq)
  589 {
  590         const struct ieee80211_aclator *acl = vap->iv_acl;
  591 
  592         return (acl == NULL ? EINVAL : acl->iac_getioctl(vap, ireq));
  593 }
  594 
  595 static __noinline int
  596 ieee80211_ioctl_getcurchan(struct ieee80211vap *vap, struct ieee80211req *ireq)
  597 {
  598         struct ieee80211com *ic = vap->iv_ic;
  599         struct ieee80211_channel *c;
  600 
  601         if (ireq->i_len != sizeof(struct ieee80211_channel))
  602                 return EINVAL;
  603         /*
  604          * vap's may have different operating channels when HT is
  605          * in use.  When in RUN state report the vap-specific channel.
  606          * Otherwise return curchan.
  607          */
  608         if (vap->iv_state == IEEE80211_S_RUN)
  609                 c = vap->iv_bss->ni_chan;
  610         else
  611                 c = ic->ic_curchan;
  612         return copyout(c, ireq->i_data, sizeof(*c));
  613 }
  614 
  615 static int
  616 getappie(const struct ieee80211_appie *aie, struct ieee80211req *ireq)
  617 {
  618         if (aie == NULL)
  619                 return EINVAL;
  620         /* NB: truncate, caller can check length */
  621         if (ireq->i_len > aie->ie_len)
  622                 ireq->i_len = aie->ie_len;
  623         return copyout(aie->ie_data, ireq->i_data, ireq->i_len);
  624 }
  625 
  626 static int
  627 ieee80211_ioctl_getappie(struct ieee80211vap *vap, struct ieee80211req *ireq)
  628 {
  629         uint8_t fc0;
  630 
  631         fc0 = ireq->i_val & 0xff;
  632         if ((fc0 & IEEE80211_FC0_TYPE_MASK) != IEEE80211_FC0_TYPE_MGT)
  633                 return EINVAL;
  634         /* NB: could check iv_opmode and reject but hardly worth the effort */
  635         switch (fc0 & IEEE80211_FC0_SUBTYPE_MASK) {
  636         case IEEE80211_FC0_SUBTYPE_BEACON:
  637                 return getappie(vap->iv_appie_beacon, ireq);
  638         case IEEE80211_FC0_SUBTYPE_PROBE_RESP:
  639                 return getappie(vap->iv_appie_proberesp, ireq);
  640         case IEEE80211_FC0_SUBTYPE_ASSOC_RESP:
  641                 return getappie(vap->iv_appie_assocresp, ireq);
  642         case IEEE80211_FC0_SUBTYPE_PROBE_REQ:
  643                 return getappie(vap->iv_appie_probereq, ireq);
  644         case IEEE80211_FC0_SUBTYPE_ASSOC_REQ:
  645                 return getappie(vap->iv_appie_assocreq, ireq);
  646         case IEEE80211_FC0_SUBTYPE_BEACON|IEEE80211_FC0_SUBTYPE_PROBE_RESP:
  647                 return getappie(vap->iv_appie_wpa, ireq);
  648         }
  649         return EINVAL;
  650 }
  651 
  652 static __noinline int
  653 ieee80211_ioctl_getregdomain(struct ieee80211vap *vap,
  654         const struct ieee80211req *ireq)
  655 {
  656         struct ieee80211com *ic = vap->iv_ic;
  657 
  658         if (ireq->i_len != sizeof(ic->ic_regdomain))
  659                 return EINVAL;
  660         return copyout(&ic->ic_regdomain, ireq->i_data,
  661             sizeof(ic->ic_regdomain));
  662 }
  663 
  664 static __noinline int
  665 ieee80211_ioctl_getroam(struct ieee80211vap *vap,
  666         const struct ieee80211req *ireq)
  667 {
  668         size_t len = ireq->i_len;
  669         /* NB: accept short requests for backwards compat */
  670         if (len > sizeof(vap->iv_roamparms))
  671                 len = sizeof(vap->iv_roamparms);
  672         return copyout(vap->iv_roamparms, ireq->i_data, len);
  673 }
  674 
  675 static __noinline int
  676 ieee80211_ioctl_gettxparams(struct ieee80211vap *vap,
  677         const struct ieee80211req *ireq)
  678 {
  679         size_t len = ireq->i_len;
  680         /* NB: accept short requests for backwards compat */
  681         if (len > sizeof(vap->iv_txparms))
  682                 len = sizeof(vap->iv_txparms);
  683         return copyout(vap->iv_txparms, ireq->i_data, len);
  684 }
  685 
  686 static __noinline int
  687 ieee80211_ioctl_getdevcaps(struct ieee80211com *ic,
  688         const struct ieee80211req *ireq)
  689 {
  690         struct ieee80211_devcaps_req *dc;
  691         struct ieee80211req_chaninfo *ci;
  692         int maxchans, error;
  693 
  694         maxchans = 1 + ((ireq->i_len - sizeof(struct ieee80211_devcaps_req)) /
  695             sizeof(struct ieee80211_channel));
  696         /* NB: require 1 so we know ic_nchans is accessible */
  697         if (maxchans < 1)
  698                 return EINVAL;
  699         /* constrain max request size, 2K channels is ~24Kbytes */
  700         if (maxchans > 2048)
  701                 maxchans = 2048;
  702         dc = (struct ieee80211_devcaps_req *)
  703             malloc(IEEE80211_DEVCAPS_SIZE(maxchans), M_TEMP, M_NOWAIT | M_ZERO);
  704         if (dc == NULL)
  705                 return ENOMEM;
  706         dc->dc_drivercaps = ic->ic_caps;
  707         dc->dc_cryptocaps = ic->ic_cryptocaps;
  708         dc->dc_htcaps = ic->ic_htcaps;
  709         ci = &dc->dc_chaninfo;
  710         ic->ic_getradiocaps(ic, maxchans, &ci->ic_nchans, ci->ic_chans);
  711         KASSERT(ci->ic_nchans <= maxchans,
  712             ("nchans %d maxchans %d", ci->ic_nchans, maxchans));
  713         ieee80211_sort_channels(ci->ic_chans, ci->ic_nchans);
  714         error = copyout(dc, ireq->i_data, IEEE80211_DEVCAPS_SPACE(dc));
  715         free(dc, M_TEMP);
  716         return error;
  717 }
  718 
  719 static __noinline int
  720 ieee80211_ioctl_getstavlan(struct ieee80211vap *vap, struct ieee80211req *ireq)
  721 {
  722         struct ieee80211_node *ni;
  723         struct ieee80211req_sta_vlan vlan;
  724         int error;
  725 
  726         if (ireq->i_len != sizeof(vlan))
  727                 return EINVAL;
  728         error = copyin(ireq->i_data, &vlan, sizeof(vlan));
  729         if (error != 0)
  730                 return error;
  731         if (!IEEE80211_ADDR_EQ(vlan.sv_macaddr, zerobssid)) {
  732                 ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap,
  733                     vlan.sv_macaddr);
  734                 if (ni == NULL)
  735                         return ENOENT;
  736         } else
  737                 ni = ieee80211_ref_node(vap->iv_bss);
  738         vlan.sv_vlan = ni->ni_vlan;
  739         error = copyout(&vlan, ireq->i_data, sizeof(vlan));
  740         ieee80211_free_node(ni);
  741         return error;
  742 }
  743 
  744 /*
  745  * Dummy ioctl get handler so the linker set is defined.
  746  */
  747 static int
  748 dummy_ioctl_get(struct ieee80211vap *vap, struct ieee80211req *ireq)
  749 {
  750         return ENOSYS;
  751 }
  752 IEEE80211_IOCTL_GET(dummy, dummy_ioctl_get);
  753 
  754 static int
  755 ieee80211_ioctl_getdefault(struct ieee80211vap *vap, struct ieee80211req *ireq)
  756 {
  757         ieee80211_ioctl_getfunc * const *get;
  758         int error;
  759 
  760         SET_FOREACH(get, ieee80211_ioctl_getset) {
  761                 error = (*get)(vap, ireq);
  762                 if (error != ENOSYS)
  763                         return error;
  764         }
  765         return EINVAL;
  766 }
  767 
  768 /*
  769  * When building the kernel with -O2 on the i386 architecture, gcc
  770  * seems to want to inline this function into ieee80211_ioctl()
  771  * (which is the only routine that calls it). When this happens,
  772  * ieee80211_ioctl() ends up consuming an additional 2K of stack
  773  * space. (Exactly why it needs so much is unclear.) The problem
  774  * is that it's possible for ieee80211_ioctl() to invoke other
  775  * routines (including driver init functions) which could then find
  776  * themselves perilously close to exhausting the stack.
  777  *
  778  * To avoid this, we deliberately prevent gcc from inlining this
  779  * routine. Another way to avoid this is to use less agressive
  780  * optimization when compiling this file (i.e. -O instead of -O2)
  781  * but special-casing the compilation of this one module in the
  782  * build system would be awkward.
  783  */
  784 static __noinline int
  785 ieee80211_ioctl_get80211(struct ieee80211vap *vap, u_long cmd,
  786     struct ieee80211req *ireq)
  787 {
  788 #define MS(_v, _f)      (((_v) & _f) >> _f##_S)
  789         struct ieee80211com *ic = vap->iv_ic;
  790         u_int kid, len;
  791         uint8_t tmpkey[IEEE80211_KEYBUF_SIZE];
  792         char tmpssid[IEEE80211_NWID_LEN];
  793         int error = 0;
  794 
  795         switch (ireq->i_type) {
  796         case IEEE80211_IOC_SSID:
  797                 switch (vap->iv_state) {
  798                 case IEEE80211_S_INIT:
  799                 case IEEE80211_S_SCAN:
  800                         ireq->i_len = vap->iv_des_ssid[0].len;
  801                         memcpy(tmpssid, vap->iv_des_ssid[0].ssid, ireq->i_len);
  802                         break;
  803                 default:
  804                         ireq->i_len = vap->iv_bss->ni_esslen;
  805                         memcpy(tmpssid, vap->iv_bss->ni_essid, ireq->i_len);
  806                         break;
  807                 }
  808                 error = copyout(tmpssid, ireq->i_data, ireq->i_len);
  809                 break;
  810         case IEEE80211_IOC_NUMSSIDS:
  811                 ireq->i_val = 1;
  812                 break;
  813         case IEEE80211_IOC_WEP:
  814                 if ((vap->iv_flags & IEEE80211_F_PRIVACY) == 0)
  815                         ireq->i_val = IEEE80211_WEP_OFF;
  816                 else if (vap->iv_flags & IEEE80211_F_DROPUNENC)
  817                         ireq->i_val = IEEE80211_WEP_ON;
  818                 else
  819                         ireq->i_val = IEEE80211_WEP_MIXED;
  820                 break;
  821         case IEEE80211_IOC_WEPKEY:
  822                 kid = (u_int) ireq->i_val;
  823                 if (kid >= IEEE80211_WEP_NKID)
  824                         return EINVAL;
  825                 len = (u_int) vap->iv_nw_keys[kid].wk_keylen;
  826                 /* NB: only root can read WEP keys */
  827                 if (priv_check(curthread, PRIV_NET80211_GETKEY) == 0) {
  828                         bcopy(vap->iv_nw_keys[kid].wk_key, tmpkey, len);
  829                 } else {
  830                         bzero(tmpkey, len);
  831                 }
  832                 ireq->i_len = len;
  833                 error = copyout(tmpkey, ireq->i_data, len);
  834                 break;
  835         case IEEE80211_IOC_NUMWEPKEYS:
  836                 ireq->i_val = IEEE80211_WEP_NKID;
  837                 break;
  838         case IEEE80211_IOC_WEPTXKEY:
  839                 ireq->i_val = vap->iv_def_txkey;
  840                 break;
  841         case IEEE80211_IOC_AUTHMODE:
  842                 if (vap->iv_flags & IEEE80211_F_WPA)
  843                         ireq->i_val = IEEE80211_AUTH_WPA;
  844                 else
  845                         ireq->i_val = vap->iv_bss->ni_authmode;
  846                 break;
  847         case IEEE80211_IOC_CHANNEL:
  848                 ireq->i_val = ieee80211_chan2ieee(ic, ic->ic_curchan);
  849                 break;
  850         case IEEE80211_IOC_POWERSAVE:
  851                 if (vap->iv_flags & IEEE80211_F_PMGTON)
  852                         ireq->i_val = IEEE80211_POWERSAVE_ON;
  853                 else
  854                         ireq->i_val = IEEE80211_POWERSAVE_OFF;
  855                 break;
  856         case IEEE80211_IOC_POWERSAVESLEEP:
  857                 ireq->i_val = ic->ic_lintval;
  858                 break;
  859         case IEEE80211_IOC_RTSTHRESHOLD:
  860                 ireq->i_val = vap->iv_rtsthreshold;
  861                 break;
  862         case IEEE80211_IOC_PROTMODE:
  863                 ireq->i_val = ic->ic_protmode;
  864                 break;
  865         case IEEE80211_IOC_TXPOWER:
  866                 /*
  867                  * Tx power limit is the min of max regulatory
  868                  * power, any user-set limit, and the max the
  869                  * radio can do.
  870                  */
  871                 ireq->i_val = 2*ic->ic_curchan->ic_maxregpower;
  872                 if (ireq->i_val > ic->ic_txpowlimit)
  873                         ireq->i_val = ic->ic_txpowlimit;
  874                 if (ireq->i_val > ic->ic_curchan->ic_maxpower)
  875                         ireq->i_val = ic->ic_curchan->ic_maxpower;
  876                 break;
  877         case IEEE80211_IOC_WPA:
  878                 switch (vap->iv_flags & IEEE80211_F_WPA) {
  879                 case IEEE80211_F_WPA1:
  880                         ireq->i_val = 1;
  881                         break;
  882                 case IEEE80211_F_WPA2:
  883                         ireq->i_val = 2;
  884                         break;
  885                 case IEEE80211_F_WPA1 | IEEE80211_F_WPA2:
  886                         ireq->i_val = 3;
  887                         break;
  888                 default:
  889                         ireq->i_val = 0;
  890                         break;
  891                 }
  892                 break;
  893         case IEEE80211_IOC_CHANLIST:
  894                 error = ieee80211_ioctl_getchanlist(vap, ireq);
  895                 break;
  896         case IEEE80211_IOC_ROAMING:
  897                 ireq->i_val = vap->iv_roaming;
  898                 break;
  899         case IEEE80211_IOC_PRIVACY:
  900                 ireq->i_val = (vap->iv_flags & IEEE80211_F_PRIVACY) != 0;
  901                 break;
  902         case IEEE80211_IOC_DROPUNENCRYPTED:
  903                 ireq->i_val = (vap->iv_flags & IEEE80211_F_DROPUNENC) != 0;
  904                 break;
  905         case IEEE80211_IOC_COUNTERMEASURES:
  906                 ireq->i_val = (vap->iv_flags & IEEE80211_F_COUNTERM) != 0;
  907                 break;
  908         case IEEE80211_IOC_WME:
  909                 ireq->i_val = (vap->iv_flags & IEEE80211_F_WME) != 0;
  910                 break;
  911         case IEEE80211_IOC_HIDESSID:
  912                 ireq->i_val = (vap->iv_flags & IEEE80211_F_HIDESSID) != 0;
  913                 break;
  914         case IEEE80211_IOC_APBRIDGE:
  915                 ireq->i_val = (vap->iv_flags & IEEE80211_F_NOBRIDGE) == 0;
  916                 break;
  917         case IEEE80211_IOC_WPAKEY:
  918                 error = ieee80211_ioctl_getkey(vap, ireq);
  919                 break;
  920         case IEEE80211_IOC_CHANINFO:
  921                 error = ieee80211_ioctl_getchaninfo(vap, ireq);
  922                 break;
  923         case IEEE80211_IOC_BSSID:
  924                 if (ireq->i_len != IEEE80211_ADDR_LEN)
  925                         return EINVAL;
  926                 if (vap->iv_state == IEEE80211_S_RUN) {
  927                         error = copyout(vap->iv_opmode == IEEE80211_M_WDS ?
  928                             vap->iv_bss->ni_macaddr : vap->iv_bss->ni_bssid,
  929                             ireq->i_data, ireq->i_len);
  930                 } else
  931                         error = copyout(vap->iv_des_bssid, ireq->i_data,
  932                             ireq->i_len);
  933                 break;
  934         case IEEE80211_IOC_WPAIE:
  935                 error = ieee80211_ioctl_getwpaie(vap, ireq, ireq->i_type);
  936                 break;
  937         case IEEE80211_IOC_WPAIE2:
  938                 error = ieee80211_ioctl_getwpaie(vap, ireq, ireq->i_type);
  939                 break;
  940         case IEEE80211_IOC_SCAN_RESULTS:
  941                 error = ieee80211_ioctl_getscanresults(vap, ireq);
  942                 break;
  943         case IEEE80211_IOC_STA_STATS:
  944                 error = ieee80211_ioctl_getstastats(vap, ireq);
  945                 break;
  946         case IEEE80211_IOC_TXPOWMAX:
  947                 ireq->i_val = vap->iv_bss->ni_txpower;
  948                 break;
  949         case IEEE80211_IOC_STA_TXPOW:
  950                 error = ieee80211_ioctl_getstatxpow(vap, ireq);
  951                 break;
  952         case IEEE80211_IOC_STA_INFO:
  953                 error = ieee80211_ioctl_getstainfo(vap, ireq);
  954                 break;
  955         case IEEE80211_IOC_WME_CWMIN:           /* WME: CWmin */
  956         case IEEE80211_IOC_WME_CWMAX:           /* WME: CWmax */
  957         case IEEE80211_IOC_WME_AIFS:            /* WME: AIFS */
  958         case IEEE80211_IOC_WME_TXOPLIMIT:       /* WME: txops limit */
  959         case IEEE80211_IOC_WME_ACM:             /* WME: ACM (bss only) */
  960         case IEEE80211_IOC_WME_ACKPOLICY:       /* WME: ACK policy (bss only) */
  961                 error = ieee80211_ioctl_getwmeparam(vap, ireq);
  962                 break;
  963         case IEEE80211_IOC_DTIM_PERIOD:
  964                 ireq->i_val = vap->iv_dtim_period;
  965                 break;
  966         case IEEE80211_IOC_BEACON_INTERVAL:
  967                 /* NB: get from ic_bss for station mode */
  968                 ireq->i_val = vap->iv_bss->ni_intval;
  969                 break;
  970         case IEEE80211_IOC_PUREG:
  971                 ireq->i_val = (vap->iv_flags & IEEE80211_F_PUREG) != 0;
  972                 break;
  973         case IEEE80211_IOC_BGSCAN:
  974                 ireq->i_val = (vap->iv_flags & IEEE80211_F_BGSCAN) != 0;
  975                 break;
  976         case IEEE80211_IOC_BGSCAN_IDLE:
  977                 ireq->i_val = vap->iv_bgscanidle*hz/1000;       /* ms */
  978                 break;
  979         case IEEE80211_IOC_BGSCAN_INTERVAL:
  980                 ireq->i_val = vap->iv_bgscanintvl/hz;           /* seconds */
  981                 break;
  982         case IEEE80211_IOC_SCANVALID:
  983                 ireq->i_val = vap->iv_scanvalid/hz;             /* seconds */
  984                 break;
  985         case IEEE80211_IOC_FRAGTHRESHOLD:
  986                 ireq->i_val = vap->iv_fragthreshold;
  987                 break;
  988         case IEEE80211_IOC_MACCMD:
  989                 error = ieee80211_ioctl_getmaccmd(vap, ireq);
  990                 break;
  991         case IEEE80211_IOC_BURST:
  992                 ireq->i_val = (vap->iv_flags & IEEE80211_F_BURST) != 0;
  993                 break;
  994         case IEEE80211_IOC_BMISSTHRESHOLD:
  995                 ireq->i_val = vap->iv_bmissthreshold;
  996                 break;
  997         case IEEE80211_IOC_CURCHAN:
  998                 error = ieee80211_ioctl_getcurchan(vap, ireq);
  999                 break;
 1000         case IEEE80211_IOC_SHORTGI:
 1001                 ireq->i_val = 0;
 1002                 if (vap->iv_flags_ht & IEEE80211_FHT_SHORTGI20)
 1003                         ireq->i_val |= IEEE80211_HTCAP_SHORTGI20;
 1004                 if (vap->iv_flags_ht & IEEE80211_FHT_SHORTGI40)
 1005                         ireq->i_val |= IEEE80211_HTCAP_SHORTGI40;
 1006                 break;
 1007         case IEEE80211_IOC_AMPDU:
 1008                 ireq->i_val = 0;
 1009                 if (vap->iv_flags_ht & IEEE80211_FHT_AMPDU_TX)
 1010                         ireq->i_val |= 1;
 1011                 if (vap->iv_flags_ht & IEEE80211_FHT_AMPDU_RX)
 1012                         ireq->i_val |= 2;
 1013                 break;
 1014         case IEEE80211_IOC_AMPDU_LIMIT:
 1015                 if (vap->iv_opmode == IEEE80211_M_HOSTAP)
 1016                         ireq->i_val = vap->iv_ampdu_rxmax;
 1017                 else if (vap->iv_state == IEEE80211_S_RUN)
 1018                         ireq->i_val = MS(vap->iv_bss->ni_htparam,
 1019                             IEEE80211_HTCAP_MAXRXAMPDU);
 1020                 else
 1021                         ireq->i_val = vap->iv_ampdu_limit;
 1022                 break;
 1023         case IEEE80211_IOC_AMPDU_DENSITY:
 1024                 if (vap->iv_opmode == IEEE80211_M_STA &&
 1025                     vap->iv_state == IEEE80211_S_RUN)
 1026                         ireq->i_val = MS(vap->iv_bss->ni_htparam,
 1027                             IEEE80211_HTCAP_MPDUDENSITY);
 1028                 else
 1029                         ireq->i_val = vap->iv_ampdu_density;
 1030                 break;
 1031         case IEEE80211_IOC_AMSDU:
 1032                 ireq->i_val = 0;
 1033                 if (vap->iv_flags_ht & IEEE80211_FHT_AMSDU_TX)
 1034                         ireq->i_val |= 1;
 1035                 if (vap->iv_flags_ht & IEEE80211_FHT_AMSDU_RX)
 1036                         ireq->i_val |= 2;
 1037                 break;
 1038         case IEEE80211_IOC_AMSDU_LIMIT:
 1039                 ireq->i_val = vap->iv_amsdu_limit;      /* XXX truncation? */
 1040                 break;
 1041         case IEEE80211_IOC_PUREN:
 1042                 ireq->i_val = (vap->iv_flags_ht & IEEE80211_FHT_PUREN) != 0;
 1043                 break;
 1044         case IEEE80211_IOC_DOTH:
 1045                 ireq->i_val = (vap->iv_flags & IEEE80211_F_DOTH) != 0;
 1046                 break;
 1047         case IEEE80211_IOC_REGDOMAIN:
 1048                 error = ieee80211_ioctl_getregdomain(vap, ireq);
 1049                 break;
 1050         case IEEE80211_IOC_ROAM:
 1051                 error = ieee80211_ioctl_getroam(vap, ireq);
 1052                 break;
 1053         case IEEE80211_IOC_TXPARAMS:
 1054                 error = ieee80211_ioctl_gettxparams(vap, ireq);
 1055                 break;
 1056         case IEEE80211_IOC_HTCOMPAT:
 1057                 ireq->i_val = (vap->iv_flags_ht & IEEE80211_FHT_HTCOMPAT) != 0;
 1058                 break;
 1059         case IEEE80211_IOC_DWDS:
 1060                 ireq->i_val = (vap->iv_flags & IEEE80211_F_DWDS) != 0;
 1061                 break;
 1062         case IEEE80211_IOC_INACTIVITY:
 1063                 ireq->i_val = (vap->iv_flags_ext & IEEE80211_FEXT_INACT) != 0;
 1064                 break;
 1065         case IEEE80211_IOC_APPIE:
 1066                 error = ieee80211_ioctl_getappie(vap, ireq);
 1067                 break;
 1068         case IEEE80211_IOC_WPS:
 1069                 ireq->i_val = (vap->iv_flags_ext & IEEE80211_FEXT_WPS) != 0;
 1070                 break;
 1071         case IEEE80211_IOC_TSN:
 1072                 ireq->i_val = (vap->iv_flags_ext & IEEE80211_FEXT_TSN) != 0;
 1073                 break;
 1074         case IEEE80211_IOC_DFS:
 1075                 ireq->i_val = (vap->iv_flags_ext & IEEE80211_FEXT_DFS) != 0;
 1076                 break;
 1077         case IEEE80211_IOC_DOTD:
 1078                 ireq->i_val = (vap->iv_flags_ext & IEEE80211_FEXT_DOTD) != 0;
 1079                 break;
 1080         case IEEE80211_IOC_DEVCAPS:
 1081                 error = ieee80211_ioctl_getdevcaps(ic, ireq);
 1082                 break;
 1083         case IEEE80211_IOC_HTPROTMODE:
 1084                 ireq->i_val = ic->ic_htprotmode;
 1085                 break;
 1086         case IEEE80211_IOC_HTCONF:
 1087                 if (vap->iv_flags_ht & IEEE80211_FHT_HT) {
 1088                         ireq->i_val = 1;
 1089                         if (vap->iv_flags_ht & IEEE80211_FHT_USEHT40)
 1090                                 ireq->i_val |= 2;
 1091                 } else
 1092                         ireq->i_val = 0;
 1093                 break;
 1094         case IEEE80211_IOC_STA_VLAN:
 1095                 error = ieee80211_ioctl_getstavlan(vap, ireq);
 1096                 break;
 1097         case IEEE80211_IOC_SMPS:
 1098                 if (vap->iv_opmode == IEEE80211_M_STA &&
 1099                     vap->iv_state == IEEE80211_S_RUN) {
 1100                         if (vap->iv_bss->ni_flags & IEEE80211_NODE_MIMO_RTS)
 1101                                 ireq->i_val = IEEE80211_HTCAP_SMPS_DYNAMIC;
 1102                         else if (vap->iv_bss->ni_flags & IEEE80211_NODE_MIMO_PS)
 1103                                 ireq->i_val = IEEE80211_HTCAP_SMPS_ENA;
 1104                         else
 1105                                 ireq->i_val = IEEE80211_HTCAP_SMPS_OFF;
 1106                 } else
 1107                         ireq->i_val = vap->iv_htcaps & IEEE80211_HTCAP_SMPS;
 1108                 break;
 1109         case IEEE80211_IOC_RIFS:
 1110                 if (vap->iv_opmode == IEEE80211_M_STA &&
 1111                     vap->iv_state == IEEE80211_S_RUN)
 1112                         ireq->i_val =
 1113                             (vap->iv_bss->ni_flags & IEEE80211_NODE_RIFS) != 0;
 1114                 else
 1115                         ireq->i_val =
 1116                             (vap->iv_flags_ht & IEEE80211_FHT_RIFS) != 0;
 1117                 break;
 1118         default:
 1119                 error = ieee80211_ioctl_getdefault(vap, ireq);
 1120                 break;
 1121         }
 1122         return error;
 1123 #undef MS
 1124 }
 1125 
 1126 static __noinline int
 1127 ieee80211_ioctl_setkey(struct ieee80211vap *vap, struct ieee80211req *ireq)
 1128 {
 1129         struct ieee80211req_key ik;
 1130         struct ieee80211_node *ni;
 1131         struct ieee80211_key *wk;
 1132         uint16_t kid;
 1133         int error, i;
 1134 
 1135         if (ireq->i_len != sizeof(ik))
 1136                 return EINVAL;
 1137         error = copyin(ireq->i_data, &ik, sizeof(ik));
 1138         if (error)
 1139                 return error;
 1140         /* NB: cipher support is verified by ieee80211_crypt_newkey */
 1141         /* NB: this also checks ik->ik_keylen > sizeof(wk->wk_key) */
 1142         if (ik.ik_keylen > sizeof(ik.ik_keydata))
 1143                 return E2BIG;
 1144         kid = ik.ik_keyix;
 1145         if (kid == IEEE80211_KEYIX_NONE) {
 1146                 /* XXX unicast keys currently must be tx/rx */
 1147                 if (ik.ik_flags != (IEEE80211_KEY_XMIT | IEEE80211_KEY_RECV))
 1148                         return EINVAL;
 1149                 if (vap->iv_opmode == IEEE80211_M_STA) {
 1150                         ni = ieee80211_ref_node(vap->iv_bss);
 1151                         if (!IEEE80211_ADDR_EQ(ik.ik_macaddr, ni->ni_bssid)) {
 1152                                 ieee80211_free_node(ni);
 1153                                 return EADDRNOTAVAIL;
 1154                         }
 1155                 } else {
 1156                         ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap,
 1157                                 ik.ik_macaddr);
 1158                         if (ni == NULL)
 1159                                 return ENOENT;
 1160                 }
 1161                 wk = &ni->ni_ucastkey;
 1162         } else {
 1163                 if (kid >= IEEE80211_WEP_NKID)
 1164                         return EINVAL;
 1165                 wk = &vap->iv_nw_keys[kid];
 1166                 /*
 1167                  * Global slots start off w/o any assigned key index.
 1168                  * Force one here for consistency with IEEE80211_IOC_WEPKEY.
 1169                  */
 1170                 if (wk->wk_keyix == IEEE80211_KEYIX_NONE)
 1171                         wk->wk_keyix = kid;
 1172                 ni = NULL;
 1173         }
 1174         error = 0;
 1175         ieee80211_key_update_begin(vap);
 1176         if (ieee80211_crypto_newkey(vap, ik.ik_type, ik.ik_flags, wk)) {
 1177                 wk->wk_keylen = ik.ik_keylen;
 1178                 /* NB: MIC presence is implied by cipher type */
 1179                 if (wk->wk_keylen > IEEE80211_KEYBUF_SIZE)
 1180                         wk->wk_keylen = IEEE80211_KEYBUF_SIZE;
 1181                 for (i = 0; i < IEEE80211_TID_SIZE; i++)
 1182                         wk->wk_keyrsc[i] = ik.ik_keyrsc;
 1183                 wk->wk_keytsc = 0;                      /* new key, reset */
 1184                 memset(wk->wk_key, 0, sizeof(wk->wk_key));
 1185                 memcpy(wk->wk_key, ik.ik_keydata, ik.ik_keylen);
 1186                 IEEE80211_ADDR_COPY(wk->wk_macaddr,
 1187                     ni != NULL ?  ni->ni_macaddr : ik.ik_macaddr);
 1188                 if (!ieee80211_crypto_setkey(vap, wk))
 1189                         error = EIO;
 1190                 else if ((ik.ik_flags & IEEE80211_KEY_DEFAULT))
 1191                         vap->iv_def_txkey = kid;
 1192         } else
 1193                 error = ENXIO;
 1194         ieee80211_key_update_end(vap);
 1195         if (ni != NULL)
 1196                 ieee80211_free_node(ni);
 1197         return error;
 1198 }
 1199 
 1200 static __noinline int
 1201 ieee80211_ioctl_delkey(struct ieee80211vap *vap, struct ieee80211req *ireq)
 1202 {
 1203         struct ieee80211req_del_key dk;
 1204         int kid, error;
 1205 
 1206         if (ireq->i_len != sizeof(dk))
 1207                 return EINVAL;
 1208         error = copyin(ireq->i_data, &dk, sizeof(dk));
 1209         if (error)
 1210                 return error;
 1211         kid = dk.idk_keyix;
 1212         /* XXX uint8_t -> uint16_t */
 1213         if (dk.idk_keyix == (uint8_t) IEEE80211_KEYIX_NONE) {
 1214                 struct ieee80211_node *ni;
 1215 
 1216                 if (vap->iv_opmode == IEEE80211_M_STA) {
 1217                         ni = ieee80211_ref_node(vap->iv_bss);
 1218                         if (!IEEE80211_ADDR_EQ(dk.idk_macaddr, ni->ni_bssid)) {
 1219                                 ieee80211_free_node(ni);
 1220                                 return EADDRNOTAVAIL;
 1221                         }
 1222                 } else {
 1223                         ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap,
 1224                                 dk.idk_macaddr);
 1225                         if (ni == NULL)
 1226                                 return ENOENT;
 1227                 }
 1228                 /* XXX error return */
 1229                 ieee80211_node_delucastkey(ni);
 1230                 ieee80211_free_node(ni);
 1231         } else {
 1232                 if (kid >= IEEE80211_WEP_NKID)
 1233                         return EINVAL;
 1234                 /* XXX error return */
 1235                 ieee80211_crypto_delkey(vap, &vap->iv_nw_keys[kid]);
 1236         }
 1237         return 0;
 1238 }
 1239 
 1240 struct mlmeop {
 1241         struct ieee80211vap *vap;
 1242         int     op;
 1243         int     reason;
 1244 };
 1245 
 1246 static void
 1247 mlmedebug(struct ieee80211vap *vap, const uint8_t mac[IEEE80211_ADDR_LEN],
 1248         int op, int reason)
 1249 {
 1250 #ifdef IEEE80211_DEBUG
 1251         static const struct {
 1252                 int mask;
 1253                 const char *opstr;
 1254         } ops[] = {
 1255                 { 0, "op#0" },
 1256                 { IEEE80211_MSG_IOCTL | IEEE80211_MSG_STATE |
 1257                   IEEE80211_MSG_ASSOC, "assoc" },
 1258                 { IEEE80211_MSG_IOCTL | IEEE80211_MSG_STATE |
 1259                   IEEE80211_MSG_ASSOC, "disassoc" },
 1260                 { IEEE80211_MSG_IOCTL | IEEE80211_MSG_STATE |
 1261                   IEEE80211_MSG_AUTH, "deauth" },
 1262                 { IEEE80211_MSG_IOCTL | IEEE80211_MSG_STATE |
 1263                   IEEE80211_MSG_AUTH, "authorize" },
 1264                 { IEEE80211_MSG_IOCTL | IEEE80211_MSG_STATE |
 1265                   IEEE80211_MSG_AUTH, "unauthorize" },
 1266         };
 1267 
 1268         if (op == IEEE80211_MLME_AUTH) {
 1269                 IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_IOCTL |
 1270                     IEEE80211_MSG_STATE | IEEE80211_MSG_AUTH, mac,
 1271                     "station authenticate %s via MLME (reason %d)",
 1272                     reason == IEEE80211_STATUS_SUCCESS ? "ACCEPT" : "REJECT",
 1273                     reason);
 1274         } else if (!(IEEE80211_MLME_ASSOC <= op && op <= IEEE80211_MLME_AUTH)) {
 1275                 IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_ANY, mac,
 1276                     "unknown MLME request %d (reason %d)", op, reason);
 1277         } else if (reason == IEEE80211_STATUS_SUCCESS) {
 1278                 IEEE80211_NOTE_MAC(vap, ops[op].mask, mac,
 1279                     "station %s via MLME", ops[op].opstr);
 1280         } else {
 1281                 IEEE80211_NOTE_MAC(vap, ops[op].mask, mac,
 1282                     "station %s via MLME (reason %d)", ops[op].opstr, reason);
 1283         }
 1284 #endif /* IEEE80211_DEBUG */
 1285 }
 1286 
 1287 static void
 1288 domlme(void *arg, struct ieee80211_node *ni)
 1289 {
 1290         struct mlmeop *mop = arg;
 1291         struct ieee80211vap *vap = ni->ni_vap;
 1292 
 1293         if (vap != mop->vap)
 1294                 return;
 1295         /*
 1296          * NB: if ni_associd is zero then the node is already cleaned
 1297          * up and we don't need to do this (we're safely holding a
 1298          * reference but should otherwise not modify it's state).
 1299          */ 
 1300         if (ni->ni_associd == 0)
 1301                 return;
 1302         mlmedebug(vap, ni->ni_macaddr, mop->op, mop->reason);
 1303         if (mop->op == IEEE80211_MLME_DEAUTH) {
 1304                 IEEE80211_SEND_MGMT(ni, IEEE80211_FC0_SUBTYPE_DEAUTH,
 1305                     mop->reason);
 1306         } else {
 1307                 IEEE80211_SEND_MGMT(ni, IEEE80211_FC0_SUBTYPE_DISASSOC,
 1308                     mop->reason);
 1309         }
 1310         ieee80211_node_leave(ni);
 1311 }
 1312 
 1313 static int
 1314 setmlme_dropsta(struct ieee80211vap *vap,
 1315         const uint8_t mac[IEEE80211_ADDR_LEN], struct mlmeop *mlmeop)
 1316 {
 1317         struct ieee80211com *ic = vap->iv_ic;
 1318         struct ieee80211_node_table *nt = &ic->ic_sta;
 1319         struct ieee80211_node *ni;
 1320         int error = 0;
 1321 
 1322         /* NB: the broadcast address means do 'em all */
 1323         if (!IEEE80211_ADDR_EQ(mac, ic->ic_ifp->if_broadcastaddr)) {
 1324                 IEEE80211_NODE_LOCK(nt);
 1325                 ni = ieee80211_find_node_locked(nt, mac);
 1326                 if (ni != NULL) {
 1327                         domlme(mlmeop, ni);
 1328                         ieee80211_free_node(ni);
 1329                 } else
 1330                         error = ENOENT;
 1331                 IEEE80211_NODE_UNLOCK(nt);
 1332         } else {
 1333                 ieee80211_iterate_nodes(nt, domlme, mlmeop);
 1334         }
 1335         return error;
 1336 }
 1337 
 1338 static __noinline int
 1339 setmlme_common(struct ieee80211vap *vap, int op,
 1340         const uint8_t mac[IEEE80211_ADDR_LEN], int reason)
 1341 {
 1342         struct ieee80211com *ic = vap->iv_ic;
 1343         struct ieee80211_node_table *nt = &ic->ic_sta;
 1344         struct ieee80211_node *ni;
 1345         struct mlmeop mlmeop;
 1346         int error;
 1347 
 1348         error = 0;
 1349         switch (op) {
 1350         case IEEE80211_MLME_DISASSOC:
 1351         case IEEE80211_MLME_DEAUTH:
 1352                 switch (vap->iv_opmode) {
 1353                 case IEEE80211_M_STA:
 1354                         mlmedebug(vap, vap->iv_bss->ni_macaddr, op, reason);
 1355                         /* XXX not quite right */
 1356                         ieee80211_new_state(vap, IEEE80211_S_INIT, reason);
 1357                         break;
 1358                 case IEEE80211_M_HOSTAP:
 1359                         mlmeop.vap = vap;
 1360                         mlmeop.op = op;
 1361                         mlmeop.reason = reason;
 1362                         error = setmlme_dropsta(vap, mac, &mlmeop);
 1363                         break;
 1364                 case IEEE80211_M_WDS:
 1365                         /* XXX user app should send raw frame? */
 1366                         if (op != IEEE80211_MLME_DEAUTH) {
 1367                                 error = EINVAL;
 1368                                 break;
 1369                         }
 1370 #if 0
 1371                         /* XXX accept any address, simplifies user code */
 1372                         if (!IEEE80211_ADDR_EQ(mac, vap->iv_bss->ni_macaddr)) {
 1373                                 error = EINVAL;
 1374                                 break;
 1375                         }
 1376 #endif
 1377                         mlmedebug(vap, vap->iv_bss->ni_macaddr, op, reason);
 1378                         ni = ieee80211_ref_node(vap->iv_bss);
 1379                         IEEE80211_SEND_MGMT(ni,
 1380                             IEEE80211_FC0_SUBTYPE_DEAUTH, reason);
 1381                         ieee80211_free_node(ni);
 1382                         break;
 1383                 default:
 1384                         error = EINVAL;
 1385                         break;
 1386                 }
 1387                 break;
 1388         case IEEE80211_MLME_AUTHORIZE:
 1389         case IEEE80211_MLME_UNAUTHORIZE:
 1390                 if (vap->iv_opmode != IEEE80211_M_HOSTAP &&
 1391                     vap->iv_opmode != IEEE80211_M_WDS) {
 1392                         error = EINVAL;
 1393                         break;
 1394                 }
 1395                 IEEE80211_NODE_LOCK(nt);
 1396                 ni = ieee80211_find_vap_node_locked(nt, vap, mac);
 1397                 if (ni != NULL) {
 1398                         mlmedebug(vap, mac, op, reason);
 1399                         if (op == IEEE80211_MLME_AUTHORIZE)
 1400                                 ieee80211_node_authorize(ni);
 1401                         else
 1402                                 ieee80211_node_unauthorize(ni);
 1403                         ieee80211_free_node(ni);
 1404                 } else
 1405                         error = ENOENT;
 1406                 IEEE80211_NODE_UNLOCK(nt);
 1407                 break;
 1408         case IEEE80211_MLME_AUTH:
 1409                 if (vap->iv_opmode != IEEE80211_M_HOSTAP) {
 1410                         error = EINVAL;
 1411                         break;
 1412                 }
 1413                 IEEE80211_NODE_LOCK(nt);
 1414                 ni = ieee80211_find_vap_node_locked(nt, vap, mac);
 1415                 if (ni != NULL) {
 1416                         mlmedebug(vap, mac, op, reason);
 1417                         if (reason == IEEE80211_STATUS_SUCCESS) {
 1418                                 IEEE80211_SEND_MGMT(ni,
 1419                                     IEEE80211_FC0_SUBTYPE_AUTH, 2);
 1420                                 /*
 1421                                  * For shared key auth, just continue the
 1422                                  * exchange.  Otherwise when 802.1x is not in
 1423                                  * use mark the port authorized at this point
 1424                                  * so traffic can flow.
 1425                                  */
 1426                                 if (ni->ni_authmode != IEEE80211_AUTH_8021X &&
 1427                                     ni->ni_challenge == NULL)
 1428                                       ieee80211_node_authorize(ni);
 1429                         } else {
 1430                                 vap->iv_stats.is_rx_acl++;
 1431                                 ieee80211_send_error(ni, ni->ni_macaddr,
 1432                                     IEEE80211_FC0_SUBTYPE_AUTH, 2|(reason<<16));
 1433                                 ieee80211_node_leave(ni);
 1434                         }
 1435                         ieee80211_free_node(ni);
 1436                 } else
 1437                         error = ENOENT;
 1438                 IEEE80211_NODE_UNLOCK(nt);
 1439                 break;
 1440         default:
 1441                 error = EINVAL;
 1442                 break;
 1443         }
 1444         return error;
 1445 }
 1446 
 1447 struct scanlookup {
 1448         const uint8_t *mac;
 1449         int esslen;
 1450         const uint8_t *essid;
 1451         const struct ieee80211_scan_entry *se;
 1452 };
 1453 
 1454 /*
 1455  * Match mac address and any ssid.
 1456  */
 1457 static void
 1458 mlmelookup(void *arg, const struct ieee80211_scan_entry *se)
 1459 {
 1460         struct scanlookup *look = arg;
 1461 
 1462         if (!IEEE80211_ADDR_EQ(look->mac, se->se_macaddr))
 1463                 return;
 1464         if (look->esslen != 0) {
 1465                 if (se->se_ssid[1] != look->esslen)
 1466                         return;
 1467                 if (memcmp(look->essid, se->se_ssid+2, look->esslen))
 1468                         return;
 1469         }
 1470         look->se = se;
 1471 }
 1472 
 1473 static __noinline int
 1474 setmlme_assoc(struct ieee80211vap *vap, const uint8_t mac[IEEE80211_ADDR_LEN],
 1475         int ssid_len, const uint8_t ssid[IEEE80211_NWID_LEN])
 1476 {
 1477         struct scanlookup lookup;
 1478 
 1479         /* XXX ibss/ahdemo */
 1480         if (vap->iv_opmode != IEEE80211_M_STA)
 1481                 return EINVAL;
 1482 
 1483         /* NB: this is racey if roaming is !manual */
 1484         lookup.se = NULL;
 1485         lookup.mac = mac;
 1486         lookup.esslen = ssid_len;
 1487         lookup.essid = ssid;
 1488         ieee80211_scan_iterate(vap, mlmelookup, &lookup);
 1489         if (lookup.se == NULL)
 1490                 return ENOENT;
 1491         mlmedebug(vap, mac, IEEE80211_MLME_ASSOC, 0);
 1492         if (!ieee80211_sta_join(vap, lookup.se->se_chan, lookup.se))
 1493                 return EIO;             /* XXX unique but could be better */
 1494         return 0;
 1495 }
 1496 
 1497 static __noinline int
 1498 ieee80211_ioctl_setmlme(struct ieee80211vap *vap, struct ieee80211req *ireq)
 1499 {
 1500         struct ieee80211req_mlme mlme;
 1501         int error;
 1502 
 1503         if (ireq->i_len != sizeof(mlme))
 1504                 return EINVAL;
 1505         error = copyin(ireq->i_data, &mlme, sizeof(mlme));
 1506         if (error)
 1507                 return error;
 1508         if  (mlme.im_op == IEEE80211_MLME_ASSOC)
 1509                 return setmlme_assoc(vap, mlme.im_macaddr,
 1510                     vap->iv_des_ssid[0].len, vap->iv_des_ssid[0].ssid);
 1511         else
 1512                 return setmlme_common(vap, mlme.im_op,
 1513                     mlme.im_macaddr, mlme.im_reason);
 1514 }
 1515 
 1516 static __noinline int
 1517 ieee80211_ioctl_macmac(struct ieee80211vap *vap, struct ieee80211req *ireq)
 1518 {
 1519         uint8_t mac[IEEE80211_ADDR_LEN];
 1520         const struct ieee80211_aclator *acl = vap->iv_acl;
 1521         int error;
 1522 
 1523         if (ireq->i_len != sizeof(mac))
 1524                 return EINVAL;
 1525         error = copyin(ireq->i_data, mac, ireq->i_len);
 1526         if (error)
 1527                 return error;
 1528         if (acl == NULL) {
 1529                 acl = ieee80211_aclator_get("mac");
 1530                 if (acl == NULL || !acl->iac_attach(vap))
 1531                         return EINVAL;
 1532                 vap->iv_acl = acl;
 1533         }
 1534         if (ireq->i_type == IEEE80211_IOC_ADDMAC)
 1535                 acl->iac_add(vap, mac);
 1536         else
 1537                 acl->iac_remove(vap, mac);
 1538         return 0;
 1539 }
 1540 
 1541 static __noinline int
 1542 ieee80211_ioctl_setmaccmd(struct ieee80211vap *vap, struct ieee80211req *ireq)
 1543 {
 1544         const struct ieee80211_aclator *acl = vap->iv_acl;
 1545 
 1546         switch (ireq->i_val) {
 1547         case IEEE80211_MACCMD_POLICY_OPEN:
 1548         case IEEE80211_MACCMD_POLICY_ALLOW:
 1549         case IEEE80211_MACCMD_POLICY_DENY:
 1550         case IEEE80211_MACCMD_POLICY_RADIUS:
 1551                 if (acl == NULL) {
 1552                         acl = ieee80211_aclator_get("mac");
 1553                         if (acl == NULL || !acl->iac_attach(vap))
 1554                                 return EINVAL;
 1555                         vap->iv_acl = acl;
 1556                 }
 1557                 acl->iac_setpolicy(vap, ireq->i_val);
 1558                 break;
 1559         case IEEE80211_MACCMD_FLUSH:
 1560                 if (acl != NULL)
 1561                         acl->iac_flush(vap);
 1562                 /* NB: silently ignore when not in use */
 1563                 break;
 1564         case IEEE80211_MACCMD_DETACH:
 1565                 if (acl != NULL) {
 1566                         vap->iv_acl = NULL;
 1567                         acl->iac_detach(vap);
 1568                 }
 1569                 break;
 1570         default:
 1571                 if (acl == NULL)
 1572                         return EINVAL;
 1573                 else
 1574                         return acl->iac_setioctl(vap, ireq);
 1575         }
 1576         return 0;
 1577 }
 1578 
 1579 static __noinline int
 1580 ieee80211_ioctl_setchanlist(struct ieee80211vap *vap, struct ieee80211req *ireq)
 1581 {
 1582         struct ieee80211com *ic = vap->iv_ic;
 1583         uint8_t *chanlist, *list;
 1584         int i, nchan, maxchan, error;
 1585 
 1586         if (ireq->i_len > sizeof(ic->ic_chan_active))
 1587                 ireq->i_len = sizeof(ic->ic_chan_active);
 1588         list = malloc(ireq->i_len + IEEE80211_CHAN_BYTES, M_TEMP,
 1589             M_NOWAIT | M_ZERO);
 1590         if (list == NULL)
 1591                 return ENOMEM;
 1592         error = copyin(ireq->i_data, list, ireq->i_len);
 1593         if (error)
 1594                 return error;
 1595         nchan = 0;
 1596         chanlist = list + ireq->i_len;          /* NB: zero'd already */
 1597         maxchan = ireq->i_len * NBBY;
 1598         for (i = 0; i < ic->ic_nchans; i++) {
 1599                 const struct ieee80211_channel *c = &ic->ic_channels[i];
 1600                 /*
 1601                  * Calculate the intersection of the user list and the
 1602                  * available channels so users can do things like specify
 1603                  * 1-255 to get all available channels.
 1604                  */
 1605                 if (c->ic_ieee < maxchan && isset(list, c->ic_ieee)) {
 1606                         setbit(chanlist, c->ic_ieee);
 1607                         nchan++;
 1608                 }
 1609         }
 1610         if (nchan == 0)
 1611                 return EINVAL;
 1612         if (ic->ic_bsschan != IEEE80211_CHAN_ANYC &&    /* XXX */
 1613             isclr(chanlist, ic->ic_bsschan->ic_ieee))
 1614                 ic->ic_bsschan = IEEE80211_CHAN_ANYC;
 1615         memcpy(ic->ic_chan_active, chanlist, IEEE80211_CHAN_BYTES);
 1616         ieee80211_scan_flush(vap);
 1617         free(list, M_TEMP);
 1618         return ENETRESET;
 1619 }
 1620 
 1621 static __noinline int
 1622 ieee80211_ioctl_setstastats(struct ieee80211vap *vap, struct ieee80211req *ireq)
 1623 {
 1624         struct ieee80211_node *ni;
 1625         uint8_t macaddr[IEEE80211_ADDR_LEN];
 1626         int error;
 1627 
 1628         /*
 1629          * NB: we could copyin ieee80211req_sta_stats so apps
 1630          *     could make selective changes but that's overkill;
 1631          *     just clear all stats for now.
 1632          */
 1633         if (ireq->i_len < IEEE80211_ADDR_LEN)
 1634                 return EINVAL;
 1635         error = copyin(ireq->i_data, macaddr, IEEE80211_ADDR_LEN);
 1636         if (error != 0)
 1637                 return error;
 1638         ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap, macaddr);
 1639         if (ni == NULL)
 1640                 return ENOENT;
 1641         /* XXX require ni_vap == vap? */
 1642         memset(&ni->ni_stats, 0, sizeof(ni->ni_stats));
 1643         ieee80211_free_node(ni);
 1644         return 0;
 1645 }
 1646 
 1647 static __noinline int
 1648 ieee80211_ioctl_setstatxpow(struct ieee80211vap *vap, struct ieee80211req *ireq)
 1649 {
 1650         struct ieee80211_node *ni;
 1651         struct ieee80211req_sta_txpow txpow;
 1652         int error;
 1653 
 1654         if (ireq->i_len != sizeof(txpow))
 1655                 return EINVAL;
 1656         error = copyin(ireq->i_data, &txpow, sizeof(txpow));
 1657         if (error != 0)
 1658                 return error;
 1659         ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap, txpow.it_macaddr);
 1660         if (ni == NULL)
 1661                 return ENOENT;
 1662         ni->ni_txpower = txpow.it_txpow;
 1663         ieee80211_free_node(ni);
 1664         return error;
 1665 }
 1666 
 1667 static __noinline int
 1668 ieee80211_ioctl_setwmeparam(struct ieee80211vap *vap, struct ieee80211req *ireq)
 1669 {
 1670         struct ieee80211com *ic = vap->iv_ic;
 1671         struct ieee80211_wme_state *wme = &ic->ic_wme;
 1672         struct wmeParams *wmep, *chanp;
 1673         int isbss, ac;
 1674 
 1675         if ((ic->ic_caps & IEEE80211_C_WME) == 0)
 1676                 return EOPNOTSUPP;
 1677 
 1678         isbss = (ireq->i_len & IEEE80211_WMEPARAM_BSS);
 1679         ac = (ireq->i_len & IEEE80211_WMEPARAM_VAL);
 1680         if (ac >= WME_NUM_AC)
 1681                 ac = WME_AC_BE;
 1682         if (isbss) {
 1683                 chanp = &wme->wme_bssChanParams.cap_wmeParams[ac];
 1684                 wmep = &wme->wme_wmeBssChanParams.cap_wmeParams[ac];
 1685         } else {
 1686                 chanp = &wme->wme_chanParams.cap_wmeParams[ac];
 1687                 wmep = &wme->wme_wmeChanParams.cap_wmeParams[ac];
 1688         }
 1689         switch (ireq->i_type) {
 1690         case IEEE80211_IOC_WME_CWMIN:           /* WME: CWmin */
 1691                 if (isbss) {
 1692                         wmep->wmep_logcwmin = ireq->i_val;
 1693                         if ((wme->wme_flags & WME_F_AGGRMODE) == 0)
 1694                                 chanp->wmep_logcwmin = ireq->i_val;
 1695                 } else {
 1696                         wmep->wmep_logcwmin = chanp->wmep_logcwmin =
 1697                                 ireq->i_val;
 1698                 }
 1699                 break;
 1700         case IEEE80211_IOC_WME_CWMAX:           /* WME: CWmax */
 1701                 if (isbss) {
 1702                         wmep->wmep_logcwmax = ireq->i_val;
 1703                         if ((wme->wme_flags & WME_F_AGGRMODE) == 0)
 1704                                 chanp->wmep_logcwmax = ireq->i_val;
 1705                 } else {
 1706                         wmep->wmep_logcwmax = chanp->wmep_logcwmax =
 1707                                 ireq->i_val;
 1708                 }
 1709                 break;
 1710         case IEEE80211_IOC_WME_AIFS:            /* WME: AIFS */
 1711                 if (isbss) {
 1712                         wmep->wmep_aifsn = ireq->i_val;
 1713                         if ((wme->wme_flags & WME_F_AGGRMODE) == 0)
 1714                                 chanp->wmep_aifsn = ireq->i_val;
 1715                 } else {
 1716                         wmep->wmep_aifsn = chanp->wmep_aifsn = ireq->i_val;
 1717                 }
 1718                 break;
 1719         case IEEE80211_IOC_WME_TXOPLIMIT:       /* WME: txops limit */
 1720                 if (isbss) {
 1721                         wmep->wmep_txopLimit = ireq->i_val;
 1722                         if ((wme->wme_flags & WME_F_AGGRMODE) == 0)
 1723                                 chanp->wmep_txopLimit = ireq->i_val;
 1724                 } else {
 1725                         wmep->wmep_txopLimit = chanp->wmep_txopLimit =
 1726                                 ireq->i_val;
 1727                 }
 1728                 break;
 1729         case IEEE80211_IOC_WME_ACM:             /* WME: ACM (bss only) */
 1730                 wmep->wmep_acm = ireq->i_val;
 1731                 if ((wme->wme_flags & WME_F_AGGRMODE) == 0)
 1732                         chanp->wmep_acm = ireq->i_val;
 1733                 break;
 1734         case IEEE80211_IOC_WME_ACKPOLICY:       /* WME: ACK policy (!bss only)*/
 1735                 wmep->wmep_noackPolicy = chanp->wmep_noackPolicy =
 1736                         (ireq->i_val) == 0;
 1737                 break;
 1738         }
 1739         ieee80211_wme_updateparams(vap);
 1740         return 0;
 1741 }
 1742 
 1743 static int
 1744 find11gchannel(struct ieee80211com *ic, int start, int freq)
 1745 {
 1746         const struct ieee80211_channel *c;
 1747         int i;
 1748 
 1749         for (i = start+1; i < ic->ic_nchans; i++) {
 1750                 c = &ic->ic_channels[i];
 1751                 if (c->ic_freq == freq && IEEE80211_IS_CHAN_ANYG(c))
 1752                         return 1;
 1753         }
 1754         /* NB: should not be needed but in case things are mis-sorted */
 1755         for (i = 0; i < start; i++) {
 1756                 c = &ic->ic_channels[i];
 1757                 if (c->ic_freq == freq && IEEE80211_IS_CHAN_ANYG(c))
 1758                         return 1;
 1759         }
 1760         return 0;
 1761 }
 1762 
 1763 static struct ieee80211_channel *
 1764 findchannel(struct ieee80211com *ic, int ieee, int mode)
 1765 {
 1766         static const u_int chanflags[IEEE80211_MODE_MAX] = {
 1767             [IEEE80211_MODE_AUTO]       = 0,
 1768             [IEEE80211_MODE_11A]        = IEEE80211_CHAN_A,
 1769             [IEEE80211_MODE_11B]        = IEEE80211_CHAN_B,
 1770             [IEEE80211_MODE_11G]        = IEEE80211_CHAN_G,
 1771             [IEEE80211_MODE_FH]         = IEEE80211_CHAN_FHSS,
 1772             [IEEE80211_MODE_TURBO_A]    = IEEE80211_CHAN_108A,
 1773             [IEEE80211_MODE_TURBO_G]    = IEEE80211_CHAN_108G,
 1774             [IEEE80211_MODE_STURBO_A]   = IEEE80211_CHAN_STURBO,
 1775             [IEEE80211_MODE_HALF]       = IEEE80211_CHAN_HALF,
 1776             [IEEE80211_MODE_QUARTER]    = IEEE80211_CHAN_QUARTER,
 1777             /* NB: handled specially below */
 1778             [IEEE80211_MODE_11NA]       = IEEE80211_CHAN_A,
 1779             [IEEE80211_MODE_11NG]       = IEEE80211_CHAN_G,
 1780         };
 1781         u_int modeflags;
 1782         int i;
 1783 
 1784         modeflags = chanflags[mode];
 1785         for (i = 0; i < ic->ic_nchans; i++) {
 1786                 struct ieee80211_channel *c = &ic->ic_channels[i];
 1787 
 1788                 if (c->ic_ieee != ieee)
 1789                         continue;
 1790                 if (mode == IEEE80211_MODE_AUTO) {
 1791                         /* ignore turbo channels for autoselect */
 1792                         if (IEEE80211_IS_CHAN_TURBO(c))
 1793                                 continue;
 1794                         /*
 1795                          * XXX special-case 11b/g channels so we
 1796                          *     always select the g channel if both
 1797                          *     are present.
 1798                          * XXX prefer HT to non-HT?
 1799                          */
 1800                         if (!IEEE80211_IS_CHAN_B(c) ||
 1801                             !find11gchannel(ic, i, c->ic_freq))
 1802                                 return c;
 1803                 } else {
 1804                         /* must check HT specially */
 1805                         if ((mode == IEEE80211_MODE_11NA ||
 1806                             mode == IEEE80211_MODE_11NG) &&
 1807                             !IEEE80211_IS_CHAN_HT(c))
 1808                                 continue;
 1809                         if ((c->ic_flags & modeflags) == modeflags)
 1810                                 return c;
 1811                 }
 1812         }
 1813         return NULL;
 1814 }
 1815 
 1816 /*
 1817  * Check the specified against any desired mode (aka netband).
 1818  * This is only used (presently) when operating in hostap mode
 1819  * to enforce consistency.
 1820  */
 1821 static int
 1822 check_mode_consistency(const struct ieee80211_channel *c, int mode)
 1823 {
 1824         KASSERT(c != IEEE80211_CHAN_ANYC, ("oops, no channel"));
 1825 
 1826         switch (mode) {
 1827         case IEEE80211_MODE_11B:
 1828                 return (IEEE80211_IS_CHAN_B(c));
 1829         case IEEE80211_MODE_11G:
 1830                 return (IEEE80211_IS_CHAN_ANYG(c) && !IEEE80211_IS_CHAN_HT(c));
 1831         case IEEE80211_MODE_11A:
 1832                 return (IEEE80211_IS_CHAN_A(c) && !IEEE80211_IS_CHAN_HT(c));
 1833         case IEEE80211_MODE_STURBO_A:
 1834                 return (IEEE80211_IS_CHAN_STURBO(c));
 1835         case IEEE80211_MODE_11NA:
 1836                 return (IEEE80211_IS_CHAN_HTA(c));
 1837         case IEEE80211_MODE_11NG:
 1838                 return (IEEE80211_IS_CHAN_HTG(c));
 1839         }
 1840         return 1;
 1841 
 1842 }
 1843 
 1844 /*
 1845  * Common code to set the current channel.  If the device
 1846  * is up and running this may result in an immediate channel
 1847  * change or a kick of the state machine.
 1848  */
 1849 static int
 1850 setcurchan(struct ieee80211vap *vap, struct ieee80211_channel *c)
 1851 {
 1852         struct ieee80211com *ic = vap->iv_ic;
 1853         int error;
 1854 
 1855         if (c != IEEE80211_CHAN_ANYC) {
 1856                 if (IEEE80211_IS_CHAN_RADAR(c))
 1857                         return EBUSY;   /* XXX better code? */
 1858                 if (vap->iv_opmode == IEEE80211_M_HOSTAP) {
 1859                         if (IEEE80211_IS_CHAN_NOHOSTAP(c))
 1860                                 return EINVAL;
 1861                         if (!check_mode_consistency(c, vap->iv_des_mode))
 1862                                 return EINVAL;
 1863                 } else if (vap->iv_opmode == IEEE80211_M_IBSS) {
 1864                         if (IEEE80211_IS_CHAN_NOADHOC(c))
 1865                                 return EINVAL;
 1866                 }
 1867                 if (vap->iv_state == IEEE80211_S_RUN &&
 1868                     vap->iv_bss->ni_chan == c)
 1869                         return 0;       /* NB: nothing to do */
 1870         }
 1871         vap->iv_des_chan = c;
 1872 
 1873         error = 0;
 1874         if (vap->iv_opmode == IEEE80211_M_MONITOR &&
 1875             vap->iv_des_chan != IEEE80211_CHAN_ANYC) {
 1876                 /*
 1877                  * Monitor mode can switch directly.
 1878                  */
 1879                 if (IFNET_IS_UP_RUNNING(vap->iv_ifp)) {
 1880                         /* XXX need state machine for other vap's to follow */
 1881                         ieee80211_setcurchan(ic, vap->iv_des_chan);
 1882                         vap->iv_bss->ni_chan = ic->ic_curchan;
 1883                 } else
 1884                         ic->ic_curchan = vap->iv_des_chan;
 1885                         ic->ic_rt = ieee80211_get_ratetable(ic->ic_curchan);
 1886         } else {
 1887                 /*
 1888                  * Need to go through the state machine in case we
 1889                  * need to reassociate or the like.  The state machine
 1890                  * will pickup the desired channel and avoid scanning.
 1891                  */
 1892                 if (IS_UP_AUTO(vap))
 1893                         ieee80211_new_state(vap, IEEE80211_S_SCAN, 0);
 1894                 else if (vap->iv_des_chan != IEEE80211_CHAN_ANYC) {
 1895                         /*
 1896                          * When not up+running and a real channel has
 1897                          * been specified fix the current channel so
 1898                          * there is immediate feedback; e.g. via ifconfig.
 1899                          */
 1900                         ic->ic_curchan = vap->iv_des_chan;
 1901                         ic->ic_rt = ieee80211_get_ratetable(ic->ic_curchan);
 1902                 }
 1903         }
 1904         return error;
 1905 }
 1906 
 1907 /*
 1908  * Old api for setting the current channel; this is
 1909  * deprecated because channel numbers are ambiguous.
 1910  */
 1911 static __noinline int
 1912 ieee80211_ioctl_setchannel(struct ieee80211vap *vap,
 1913         const struct ieee80211req *ireq)
 1914 {
 1915         struct ieee80211com *ic = vap->iv_ic;
 1916         struct ieee80211_channel *c;
 1917 
 1918         /* XXX 0xffff overflows 16-bit signed */
 1919         if (ireq->i_val == 0 ||
 1920             ireq->i_val == (int16_t) IEEE80211_CHAN_ANY) {
 1921                 c = IEEE80211_CHAN_ANYC;
 1922         } else {
 1923                 struct ieee80211_channel *c2;
 1924 
 1925                 c = findchannel(ic, ireq->i_val, vap->iv_des_mode);
 1926                 if (c == NULL) {
 1927                         c = findchannel(ic, ireq->i_val,
 1928                                 IEEE80211_MODE_AUTO);
 1929                         if (c == NULL)
 1930                                 return EINVAL;
 1931                 }
 1932                 /*
 1933                  * Fine tune channel selection based on desired mode:
 1934                  *   if 11b is requested, find the 11b version of any
 1935                  *      11g channel returned,
 1936                  *   if static turbo, find the turbo version of any
 1937                  *      11a channel return,
 1938                  *   if 11na is requested, find the ht version of any
 1939                  *      11a channel returned,
 1940                  *   if 11ng is requested, find the ht version of any
 1941                  *      11g channel returned,
 1942                  *   otherwise we should be ok with what we've got.
 1943                  */
 1944                 switch (vap->iv_des_mode) {
 1945                 case IEEE80211_MODE_11B:
 1946                         if (IEEE80211_IS_CHAN_ANYG(c)) {
 1947                                 c2 = findchannel(ic, ireq->i_val,
 1948                                         IEEE80211_MODE_11B);
 1949                                 /* NB: should not happen, =>'s 11g w/o 11b */
 1950                                 if (c2 != NULL)
 1951                                         c = c2;
 1952                         }
 1953                         break;
 1954                 case IEEE80211_MODE_TURBO_A:
 1955                         if (IEEE80211_IS_CHAN_A(c)) {
 1956                                 c2 = findchannel(ic, ireq->i_val,
 1957                                         IEEE80211_MODE_TURBO_A);
 1958                                 if (c2 != NULL)
 1959                                         c = c2;
 1960                         }
 1961                         break;
 1962                 case IEEE80211_MODE_11NA:
 1963                         if (IEEE80211_IS_CHAN_A(c)) {
 1964                                 c2 = findchannel(ic, ireq->i_val,
 1965                                         IEEE80211_MODE_11NA);
 1966                                 if (c2 != NULL)
 1967                                         c = c2;
 1968                         }
 1969                         break;
 1970                 case IEEE80211_MODE_11NG:
 1971                         if (IEEE80211_IS_CHAN_ANYG(c)) {
 1972                                 c2 = findchannel(ic, ireq->i_val,
 1973                                         IEEE80211_MODE_11NG);
 1974                                 if (c2 != NULL)
 1975                                         c = c2;
 1976                         }
 1977                         break;
 1978                 default:                /* NB: no static turboG */
 1979                         break;
 1980                 }
 1981         }
 1982         return setcurchan(vap, c);
 1983 }
 1984 
 1985 /*
 1986  * New/current api for setting the current channel; a complete
 1987  * channel description is provide so there is no ambiguity in
 1988  * identifying the channel.
 1989  */
 1990 static __noinline int
 1991 ieee80211_ioctl_setcurchan(struct ieee80211vap *vap,
 1992         const struct ieee80211req *ireq)
 1993 {
 1994         struct ieee80211com *ic = vap->iv_ic;
 1995         struct ieee80211_channel chan, *c;
 1996         int error;
 1997 
 1998         if (ireq->i_len != sizeof(chan))
 1999                 return EINVAL;
 2000         error = copyin(ireq->i_data, &chan, sizeof(chan));
 2001         if (error != 0)
 2002                 return error;
 2003         /* XXX 0xffff overflows 16-bit signed */
 2004         if (chan.ic_freq == 0 || chan.ic_freq == IEEE80211_CHAN_ANY) {
 2005                 c = IEEE80211_CHAN_ANYC;
 2006         } else {
 2007                 c = ieee80211_find_channel(ic, chan.ic_freq, chan.ic_flags);
 2008                 if (c == NULL)
 2009                         return EINVAL;
 2010         }
 2011         return setcurchan(vap, c);
 2012 }
 2013 
 2014 static __noinline int
 2015 ieee80211_ioctl_setregdomain(struct ieee80211vap *vap,
 2016         const struct ieee80211req *ireq)
 2017 {
 2018         struct ieee80211_regdomain_req *reg;
 2019         int nchans, error;
 2020 
 2021         nchans = 1 + ((ireq->i_len - sizeof(struct ieee80211_regdomain_req)) /
 2022             sizeof(struct ieee80211_channel));
 2023         if (!(1 <= nchans && nchans <= IEEE80211_CHAN_MAX)) {
 2024                 IEEE80211_DPRINTF(vap, IEEE80211_MSG_IOCTL,
 2025                     "%s: bad # chans, i_len %d nchans %d\n", __func__,
 2026                     ireq->i_len, nchans);
 2027                 return EINVAL;
 2028         }
 2029         reg = (struct ieee80211_regdomain_req *)
 2030             malloc(IEEE80211_REGDOMAIN_SIZE(nchans), M_TEMP, M_NOWAIT);
 2031         if (reg == NULL) {
 2032                 IEEE80211_DPRINTF(vap, IEEE80211_MSG_IOCTL,
 2033                     "%s: no memory, nchans %d\n", __func__, nchans);
 2034                 return ENOMEM;
 2035         }
 2036         error = copyin(ireq->i_data, reg, IEEE80211_REGDOMAIN_SIZE(nchans));
 2037         if (error == 0) {
 2038                 /* NB: validate inline channel count against storage size */
 2039                 if (reg->chaninfo.ic_nchans != nchans) {
 2040                         IEEE80211_DPRINTF(vap, IEEE80211_MSG_IOCTL,
 2041                             "%s: chan cnt mismatch, %d != %d\n", __func__,
 2042                                 reg->chaninfo.ic_nchans, nchans);
 2043                         error = EINVAL;
 2044                 } else
 2045                         error = ieee80211_setregdomain(vap, reg);
 2046         }
 2047         free(reg, M_TEMP);
 2048 
 2049         return (error == 0 ? ENETRESET : error);
 2050 }
 2051 
 2052 static int
 2053 ieee80211_ioctl_setroam(struct ieee80211vap *vap,
 2054         const struct ieee80211req *ireq)
 2055 {
 2056         if (ireq->i_len != sizeof(vap->iv_roamparms))
 2057                 return EINVAL;
 2058         /* XXX validate params */
 2059         /* XXX? ENETRESET to push to device? */
 2060         return copyin(ireq->i_data, vap->iv_roamparms,
 2061             sizeof(vap->iv_roamparms));
 2062 }
 2063 
 2064 static int
 2065 checkrate(const struct ieee80211_rateset *rs, int rate)
 2066 {
 2067         int i;
 2068 
 2069         if (rate == IEEE80211_FIXED_RATE_NONE)
 2070                 return 1;
 2071         for (i = 0; i < rs->rs_nrates; i++)
 2072                 if ((rs->rs_rates[i] & IEEE80211_RATE_VAL) == rate)
 2073                         return 1;
 2074         return 0;
 2075 }
 2076 
 2077 static int
 2078 checkmcs(int mcs)
 2079 {
 2080         if (mcs == IEEE80211_FIXED_RATE_NONE)
 2081                 return 1;
 2082         if ((mcs & IEEE80211_RATE_MCS) == 0)    /* MCS always have 0x80 set */
 2083                 return 0;
 2084         return (mcs & 0x7f) <= 15;      /* XXX could search ht rate set */
 2085 }
 2086 
 2087 static __noinline int
 2088 ieee80211_ioctl_settxparams(struct ieee80211vap *vap,
 2089         const struct ieee80211req *ireq)
 2090 {
 2091         struct ieee80211com *ic = vap->iv_ic;
 2092         struct ieee80211_txparams_req parms;    /* XXX stack use? */
 2093         struct ieee80211_txparam *src, *dst;
 2094         const struct ieee80211_rateset *rs;
 2095         int error, mode, changed, is11n, nmodes;
 2096 
 2097         /* NB: accept short requests for backwards compat */
 2098         if (ireq->i_len > sizeof(parms))
 2099                 return EINVAL;
 2100         error = copyin(ireq->i_data, &parms, ireq->i_len);
 2101         if (error != 0)
 2102                 return error;
 2103         nmodes = ireq->i_len / sizeof(struct ieee80211_txparam);
 2104         changed = 0;
 2105         /* validate parameters and check if anything changed */
 2106         for (mode = IEEE80211_MODE_11A; mode < nmodes; mode++) {
 2107                 if (isclr(ic->ic_modecaps, mode))
 2108                         continue;
 2109                 src = &parms.params[mode];
 2110                 dst = &vap->iv_txparms[mode];
 2111                 rs = &ic->ic_sup_rates[mode];   /* NB: 11n maps to legacy */
 2112                 is11n = (mode == IEEE80211_MODE_11NA ||
 2113                          mode == IEEE80211_MODE_11NG);
 2114                 if (src->ucastrate != dst->ucastrate) {
 2115                         if (!checkrate(rs, src->ucastrate) &&
 2116                             (!is11n || !checkmcs(src->ucastrate)))
 2117                                 return EINVAL;
 2118                         changed++;
 2119                 }
 2120                 if (src->mcastrate != dst->mcastrate) {
 2121                         if (!checkrate(rs, src->mcastrate) &&
 2122                             (!is11n || !checkmcs(src->mcastrate)))
 2123                                 return EINVAL;
 2124                         changed++;
 2125                 }
 2126                 if (src->mgmtrate != dst->mgmtrate) {
 2127                         if (!checkrate(rs, src->mgmtrate) &&
 2128                             (!is11n || !checkmcs(src->mgmtrate)))
 2129                                 return EINVAL;
 2130                         changed++;
 2131                 }
 2132                 if (src->maxretry != dst->maxretry)     /* NB: no bounds */
 2133                         changed++;
 2134         }
 2135         if (changed) {
 2136                 /*
 2137                  * Copy new parameters in place and notify the
 2138                  * driver so it can push state to the device.
 2139                  */
 2140                 for (mode = IEEE80211_MODE_11A; mode < nmodes; mode++) {
 2141                         if (isset(ic->ic_modecaps, mode))
 2142                                 vap->iv_txparms[mode] = parms.params[mode];
 2143                 }
 2144                 /* XXX could be more intelligent,
 2145                    e.g. don't reset if setting not being used */
 2146                 return ENETRESET;
 2147         }
 2148         return 0;
 2149 }
 2150 
 2151 /*
 2152  * Application Information Element support.
 2153  */
 2154 static int
 2155 setappie(struct ieee80211_appie **aie, const struct ieee80211req *ireq)
 2156 {
 2157         struct ieee80211_appie *app = *aie;
 2158         struct ieee80211_appie *napp;
 2159         int error;
 2160 
 2161         if (ireq->i_len == 0) {         /* delete any existing ie */
 2162                 if (app != NULL) {
 2163                         *aie = NULL;    /* XXX racey */
 2164                         free(app, M_80211_NODE_IE);
 2165                 }
 2166                 return 0;
 2167         }
 2168         if (!(2 <= ireq->i_len && ireq->i_len <= IEEE80211_MAX_APPIE))
 2169                 return EINVAL;
 2170         /*
 2171          * Allocate a new appie structure and copy in the user data.
 2172          * When done swap in the new structure.  Note that we do not
 2173          * guard against users holding a ref to the old structure;
 2174          * this must be handled outside this code.
 2175          *
 2176          * XXX bad bad bad
 2177          */
 2178         napp = (struct ieee80211_appie *) malloc(
 2179             sizeof(struct ieee80211_appie) + ireq->i_len, M_80211_NODE_IE, M_NOWAIT);
 2180         if (napp == NULL)
 2181                 return ENOMEM;
 2182         /* XXX holding ic lock */
 2183         error = copyin(ireq->i_data, napp->ie_data, ireq->i_len);
 2184         if (error) {
 2185                 free(napp, M_80211_NODE_IE);
 2186                 return error;
 2187         }
 2188         napp->ie_len = ireq->i_len;
 2189         *aie = napp;
 2190         if (app != NULL)
 2191                 free(app, M_80211_NODE_IE);
 2192         return 0;
 2193 }
 2194 
 2195 static void
 2196 setwparsnie(struct ieee80211vap *vap, uint8_t *ie, int space)
 2197 {
 2198         /* validate data is present as best we can */
 2199         if (space == 0 || 2+ie[1] > space)
 2200                 return;
 2201         if (ie[0] == IEEE80211_ELEMID_VENDOR)
 2202                 vap->iv_wpa_ie = ie;
 2203         else if (ie[0] == IEEE80211_ELEMID_RSN)
 2204                 vap->iv_rsn_ie = ie;
 2205 }
 2206 
 2207 static __noinline int
 2208 ieee80211_ioctl_setappie_locked(struct ieee80211vap *vap,
 2209         const struct ieee80211req *ireq, int fc0)
 2210 {
 2211         int error;
 2212 
 2213         IEEE80211_LOCK_ASSERT(vap->iv_ic);
 2214 
 2215         switch (fc0 & IEEE80211_FC0_SUBTYPE_MASK) {
 2216         case IEEE80211_FC0_SUBTYPE_BEACON:
 2217                 if (vap->iv_opmode != IEEE80211_M_HOSTAP &&
 2218                     vap->iv_opmode != IEEE80211_M_IBSS) {
 2219                         error = EINVAL;
 2220                         break;
 2221                 }
 2222                 error = setappie(&vap->iv_appie_beacon, ireq);
 2223                 if (error == 0)
 2224                         ieee80211_beacon_notify(vap, IEEE80211_BEACON_APPIE);
 2225                 break;
 2226         case IEEE80211_FC0_SUBTYPE_PROBE_RESP:
 2227                 error = setappie(&vap->iv_appie_proberesp, ireq);
 2228                 break;
 2229         case IEEE80211_FC0_SUBTYPE_ASSOC_RESP:
 2230                 if (vap->iv_opmode == IEEE80211_M_HOSTAP)
 2231                         error = setappie(&vap->iv_appie_assocresp, ireq);
 2232                 else
 2233                         error = EINVAL;
 2234                 break;
 2235         case IEEE80211_FC0_SUBTYPE_PROBE_REQ:
 2236                 error = setappie(&vap->iv_appie_probereq, ireq);
 2237                 break;
 2238         case IEEE80211_FC0_SUBTYPE_ASSOC_REQ:
 2239                 if (vap->iv_opmode == IEEE80211_M_STA)
 2240                         error = setappie(&vap->iv_appie_assocreq, ireq);
 2241                 else
 2242                         error = EINVAL;
 2243                 break;
 2244         case (IEEE80211_APPIE_WPA & IEEE80211_FC0_SUBTYPE_MASK):
 2245                 error = setappie(&vap->iv_appie_wpa, ireq);
 2246                 if (error == 0) {
 2247                         /*
 2248                          * Must split single blob of data into separate
 2249                          * WPA and RSN ie's because they go in different
 2250                          * locations in the mgt frames.
 2251                          * XXX use IEEE80211_IOC_WPA2 so user code does split
 2252                          */
 2253                         vap->iv_wpa_ie = NULL;
 2254                         vap->iv_rsn_ie = NULL;
 2255                         if (vap->iv_appie_wpa != NULL) {
 2256                                 struct ieee80211_appie *appie =
 2257                                     vap->iv_appie_wpa;
 2258                                 uint8_t *data = appie->ie_data;
 2259 
 2260                                 /* XXX ie length validate is painful, cheat */
 2261                                 setwparsnie(vap, data, appie->ie_len);
 2262                                 setwparsnie(vap, data + 2 + data[1],
 2263                                     appie->ie_len - (2 + data[1]));
 2264                         }
 2265                         if (vap->iv_opmode == IEEE80211_M_HOSTAP ||
 2266                             vap->iv_opmode == IEEE80211_M_IBSS) {
 2267                                 /*
 2268                                  * Must rebuild beacon frame as the update
 2269                                  * mechanism doesn't handle WPA/RSN ie's.
 2270                                  * Could extend it but it doesn't normally
 2271                                  * change; this is just to deal with hostapd
 2272                                  * plumbing the ie after the interface is up.
 2273                                  */
 2274                                 error = ENETRESET;
 2275                         }
 2276                 }
 2277                 break;
 2278         default:
 2279                 error = EINVAL;
 2280                 break;
 2281         }
 2282         return error;
 2283 }
 2284 
 2285 static __noinline int
 2286 ieee80211_ioctl_setappie(struct ieee80211vap *vap,
 2287         const struct ieee80211req *ireq)
 2288 {
 2289         struct ieee80211com *ic = vap->iv_ic;
 2290         int error;
 2291         uint8_t fc0;
 2292 
 2293         fc0 = ireq->i_val & 0xff;
 2294         if ((fc0 & IEEE80211_FC0_TYPE_MASK) != IEEE80211_FC0_TYPE_MGT)
 2295                 return EINVAL;
 2296         /* NB: could check iv_opmode and reject but hardly worth the effort */
 2297         IEEE80211_LOCK(ic);
 2298         error = ieee80211_ioctl_setappie_locked(vap, ireq, fc0);
 2299         IEEE80211_UNLOCK(ic);
 2300         return error;
 2301 }
 2302 
 2303 static __noinline int
 2304 ieee80211_ioctl_chanswitch(struct ieee80211vap *vap, struct ieee80211req *ireq)
 2305 {
 2306         struct ieee80211com *ic = vap->iv_ic;
 2307         struct ieee80211_chanswitch_req csr;
 2308         struct ieee80211_channel *c;
 2309         int error;
 2310 
 2311         if (ireq->i_len != sizeof(csr))
 2312                 return EINVAL;
 2313         error = copyin(ireq->i_data, &csr, sizeof(csr));
 2314         if (error != 0)
 2315                 return error;
 2316         /* XXX adhoc mode not supported */
 2317         if (vap->iv_opmode != IEEE80211_M_HOSTAP ||
 2318             (vap->iv_flags & IEEE80211_F_DOTH) == 0)
 2319                 return EOPNOTSUPP;
 2320         c = ieee80211_find_channel(ic,
 2321             csr.csa_chan.ic_freq, csr.csa_chan.ic_flags);
 2322         if (c == NULL)
 2323                 return ENOENT;
 2324         IEEE80211_LOCK(ic);
 2325         if ((ic->ic_flags & IEEE80211_F_CSAPENDING) == 0)
 2326                 ieee80211_csa_startswitch(ic, c, csr.csa_mode, csr.csa_count);
 2327         else if (csr.csa_count == 0)
 2328                 ieee80211_csa_cancelswitch(ic);
 2329         else
 2330                 error = EBUSY;
 2331         IEEE80211_UNLOCK(ic);
 2332         return error;
 2333 }
 2334 
 2335 static __noinline int
 2336 ieee80211_ioctl_scanreq(struct ieee80211vap *vap, struct ieee80211req *ireq)
 2337 {
 2338 #define IEEE80211_IOC_SCAN_FLAGS \
 2339         (IEEE80211_IOC_SCAN_NOPICK | IEEE80211_IOC_SCAN_ACTIVE | \
 2340          IEEE80211_IOC_SCAN_PICK1ST | IEEE80211_IOC_SCAN_BGSCAN | \
 2341          IEEE80211_IOC_SCAN_ONCE | IEEE80211_IOC_SCAN_NOBCAST | \
 2342          IEEE80211_IOC_SCAN_NOJOIN | IEEE80211_IOC_SCAN_FLUSH | \
 2343          IEEE80211_IOC_SCAN_CHECK)
 2344         struct ieee80211com *ic = vap->iv_ic;
 2345         struct ieee80211_scan_req sr;           /* XXX off stack? */
 2346         int error, i;
 2347 
 2348         /* NB: parent must be running */
 2349         if ((ic->ic_ifp->if_drv_flags & IFF_DRV_RUNNING) == 0)
 2350                 return ENXIO;
 2351 
 2352         if (ireq->i_len != sizeof(sr))
 2353                 return EINVAL;
 2354         error = copyin(ireq->i_data, &sr, sizeof(sr));
 2355         if (error != 0)
 2356                 return error;
 2357         /* convert duration */
 2358         if (sr.sr_duration == IEEE80211_IOC_SCAN_FOREVER)
 2359                 sr.sr_duration = IEEE80211_SCAN_FOREVER;
 2360         else {
 2361                 if (sr.sr_duration < IEEE80211_IOC_SCAN_DURATION_MIN ||
 2362                     sr.sr_duration > IEEE80211_IOC_SCAN_DURATION_MAX)
 2363                         return EINVAL;
 2364                 sr.sr_duration = msecs_to_ticks(sr.sr_duration);
 2365                 if (sr.sr_duration < 1)
 2366                         sr.sr_duration = 1;
 2367         }
 2368         /* convert min/max channel dwell */
 2369         if (sr.sr_mindwell != 0) {
 2370                 sr.sr_mindwell = msecs_to_ticks(sr.sr_mindwell);
 2371                 if (sr.sr_mindwell < 1)
 2372                         sr.sr_mindwell = 1;
 2373         }
 2374         if (sr.sr_maxdwell != 0) {
 2375                 sr.sr_maxdwell = msecs_to_ticks(sr.sr_maxdwell);
 2376                 if (sr.sr_maxdwell < 1)
 2377                         sr.sr_maxdwell = 1;
 2378         }
 2379         /* NB: silently reduce ssid count to what is supported */
 2380         if (sr.sr_nssid > IEEE80211_SCAN_MAX_SSID)
 2381                 sr.sr_nssid = IEEE80211_SCAN_MAX_SSID;
 2382         for (i = 0; i < sr.sr_nssid; i++)
 2383                 if (sr.sr_ssid[i].len > IEEE80211_NWID_LEN)
 2384                         return EINVAL;
 2385         /* cleanse flags just in case, could reject if invalid flags */
 2386         sr.sr_flags &= IEEE80211_IOC_SCAN_FLAGS;
 2387         /*
 2388          * Add an implicit NOPICK if the vap is not marked UP.  This
 2389          * allows applications to scan without joining a bss (or picking
 2390          * a channel and setting up a bss) and without forcing manual
 2391          * roaming mode--you just need to mark the parent device UP.
 2392          */
 2393         if ((vap->iv_ifp->if_flags & IFF_UP) == 0)
 2394                 sr.sr_flags |= IEEE80211_IOC_SCAN_NOPICK;
 2395 
 2396         IEEE80211_DPRINTF(vap, IEEE80211_MSG_SCAN,
 2397             "%s: flags 0x%x%s duration 0x%x mindwell %u maxdwell %u nssid %d\n",
 2398             __func__, sr.sr_flags,
 2399             (vap->iv_ifp->if_flags & IFF_UP) == 0 ? " (!IFF_UP)" : "",
 2400             sr.sr_duration, sr.sr_mindwell, sr.sr_maxdwell, sr.sr_nssid);
 2401         /*
 2402          * If we are in INIT state then the driver has never had a chance
 2403          * to setup hardware state to do a scan; we must use the state
 2404          * machine to get us up to the SCAN state but once we reach SCAN
 2405          * state we then want to use the supplied params.  Stash the
 2406          * parameters in the vap and mark IEEE80211_FEXT_SCANREQ; the
 2407          * state machines will recognize this and use the stashed params
 2408          * to issue the scan request.
 2409          *
 2410          * Otherwise just invoke the scan machinery directly.
 2411          */
 2412         IEEE80211_LOCK(ic);
 2413         if (vap->iv_state == IEEE80211_S_INIT) {
 2414                 /* NB: clobbers previous settings */
 2415                 vap->iv_scanreq_flags = sr.sr_flags;
 2416                 vap->iv_scanreq_duration = sr.sr_duration;
 2417                 vap->iv_scanreq_nssid = sr.sr_nssid;
 2418                 for (i = 0; i < sr.sr_nssid; i++) {
 2419                         vap->iv_scanreq_ssid[i].len = sr.sr_ssid[i].len;
 2420                         memcpy(vap->iv_scanreq_ssid[i].ssid, sr.sr_ssid[i].ssid,
 2421                             sr.sr_ssid[i].len);
 2422                 }
 2423                 vap->iv_flags_ext |= IEEE80211_FEXT_SCANREQ;
 2424                 IEEE80211_UNLOCK(ic);
 2425                 ieee80211_new_state(vap, IEEE80211_S_SCAN, 0);
 2426         } else {
 2427                 vap->iv_flags_ext &= ~IEEE80211_FEXT_SCANREQ;
 2428                 IEEE80211_UNLOCK(ic);
 2429                 /* XXX neeed error return codes */
 2430                 if (sr.sr_flags & IEEE80211_IOC_SCAN_CHECK) {
 2431                         (void) ieee80211_check_scan(vap, sr.sr_flags,
 2432                             sr.sr_duration, sr.sr_mindwell, sr.sr_maxdwell,
 2433                             sr.sr_nssid,
 2434                             /* NB: cheat, we assume structures are compatible */
 2435                             (const struct ieee80211_scan_ssid *) &sr.sr_ssid[0]);
 2436                 } else {
 2437                         (void) ieee80211_start_scan(vap, sr.sr_flags,
 2438                             sr.sr_duration, sr.sr_mindwell, sr.sr_maxdwell,
 2439                             sr.sr_nssid,
 2440                             /* NB: cheat, we assume structures are compatible */
 2441                             (const struct ieee80211_scan_ssid *) &sr.sr_ssid[0]);
 2442                 }
 2443         }
 2444         return error;
 2445 #undef IEEE80211_IOC_SCAN_FLAGS
 2446 }
 2447 
 2448 static __noinline int
 2449 ieee80211_ioctl_setstavlan(struct ieee80211vap *vap, struct ieee80211req *ireq)
 2450 {
 2451         struct ieee80211_node *ni;
 2452         struct ieee80211req_sta_vlan vlan;
 2453         int error;
 2454 
 2455         if (ireq->i_len != sizeof(vlan))
 2456                 return EINVAL;
 2457         error = copyin(ireq->i_data, &vlan, sizeof(vlan));
 2458         if (error != 0)
 2459                 return error;
 2460         if (!IEEE80211_ADDR_EQ(vlan.sv_macaddr, zerobssid)) {
 2461                 ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap,
 2462                     vlan.sv_macaddr);
 2463                 if (ni == NULL)
 2464                         return ENOENT;
 2465         } else
 2466                 ni = ieee80211_ref_node(vap->iv_bss);
 2467         ni->ni_vlan = vlan.sv_vlan;
 2468         ieee80211_free_node(ni);
 2469         return error;
 2470 }
 2471 
 2472 static int
 2473 isvap11g(const struct ieee80211vap *vap)
 2474 {
 2475         const struct ieee80211_node *bss = vap->iv_bss;
 2476         return bss->ni_chan != IEEE80211_CHAN_ANYC &&
 2477             IEEE80211_IS_CHAN_ANYG(bss->ni_chan);
 2478 }
 2479 
 2480 static int
 2481 isvapht(const struct ieee80211vap *vap)
 2482 {
 2483         const struct ieee80211_node *bss = vap->iv_bss;
 2484         return bss->ni_chan != IEEE80211_CHAN_ANYC &&
 2485             IEEE80211_IS_CHAN_HT(bss->ni_chan);
 2486 }
 2487 
 2488 /*
 2489  * Dummy ioctl set handler so the linker set is defined.
 2490  */
 2491 static int
 2492 dummy_ioctl_set(struct ieee80211vap *vap, struct ieee80211req *ireq)
 2493 {
 2494         return ENOSYS;
 2495 }
 2496 IEEE80211_IOCTL_SET(dummy, dummy_ioctl_set);
 2497 
 2498 static int
 2499 ieee80211_ioctl_setdefault(struct ieee80211vap *vap, struct ieee80211req *ireq)
 2500 {
 2501         ieee80211_ioctl_setfunc * const *set;
 2502         int error;
 2503 
 2504         SET_FOREACH(set, ieee80211_ioctl_setset) {
 2505                 error = (*set)(vap, ireq);
 2506                 if (error != ENOSYS)
 2507                         return error;
 2508         }
 2509         return EINVAL;
 2510 }
 2511 
 2512 static __noinline int
 2513 ieee80211_ioctl_set80211(struct ieee80211vap *vap, u_long cmd, struct ieee80211req *ireq)
 2514 {
 2515         struct ieee80211com *ic = vap->iv_ic;
 2516         int error;
 2517         const struct ieee80211_authenticator *auth;
 2518         uint8_t tmpkey[IEEE80211_KEYBUF_SIZE];
 2519         char tmpssid[IEEE80211_NWID_LEN];
 2520         uint8_t tmpbssid[IEEE80211_ADDR_LEN];
 2521         struct ieee80211_key *k;
 2522         u_int kid;
 2523         uint32_t flags;
 2524 
 2525         error = 0;
 2526         switch (ireq->i_type) {
 2527         case IEEE80211_IOC_SSID:
 2528                 if (ireq->i_val != 0 ||
 2529                     ireq->i_len > IEEE80211_NWID_LEN)
 2530                         return EINVAL;
 2531                 error = copyin(ireq->i_data, tmpssid, ireq->i_len);
 2532                 if (error)
 2533                         break;
 2534                 memset(vap->iv_des_ssid[0].ssid, 0, IEEE80211_NWID_LEN);
 2535                 vap->iv_des_ssid[0].len = ireq->i_len;
 2536                 memcpy(vap->iv_des_ssid[0].ssid, tmpssid, ireq->i_len);
 2537                 vap->iv_des_nssid = (ireq->i_len > 0);
 2538                 error = ENETRESET;
 2539                 break;
 2540         case IEEE80211_IOC_WEP:
 2541                 switch (ireq->i_val) {
 2542                 case IEEE80211_WEP_OFF:
 2543                         vap->iv_flags &= ~IEEE80211_F_PRIVACY;
 2544                         vap->iv_flags &= ~IEEE80211_F_DROPUNENC;
 2545                         break;
 2546                 case IEEE80211_WEP_ON:
 2547                         vap->iv_flags |= IEEE80211_F_PRIVACY;
 2548                         vap->iv_flags |= IEEE80211_F_DROPUNENC;
 2549                         break;
 2550                 case IEEE80211_WEP_MIXED:
 2551                         vap->iv_flags |= IEEE80211_F_PRIVACY;
 2552                         vap->iv_flags &= ~IEEE80211_F_DROPUNENC;
 2553                         break;
 2554                 }
 2555                 error = ENETRESET;
 2556                 break;
 2557         case IEEE80211_IOC_WEPKEY:
 2558                 kid = (u_int) ireq->i_val;
 2559                 if (kid >= IEEE80211_WEP_NKID)
 2560                         return EINVAL;
 2561                 k = &vap->iv_nw_keys[kid];
 2562                 if (ireq->i_len == 0) {
 2563                         /* zero-len =>'s delete any existing key */
 2564                         (void) ieee80211_crypto_delkey(vap, k);
 2565                         break;
 2566                 }
 2567                 if (ireq->i_len > sizeof(tmpkey))
 2568                         return EINVAL;
 2569                 memset(tmpkey, 0, sizeof(tmpkey));
 2570                 error = copyin(ireq->i_data, tmpkey, ireq->i_len);
 2571                 if (error)
 2572                         break;
 2573                 ieee80211_key_update_begin(vap);
 2574                 k->wk_keyix = kid;      /* NB: force fixed key id */
 2575                 if (ieee80211_crypto_newkey(vap, IEEE80211_CIPHER_WEP,
 2576                     IEEE80211_KEY_XMIT | IEEE80211_KEY_RECV, k)) {
 2577                         k->wk_keylen = ireq->i_len;
 2578                         memcpy(k->wk_key, tmpkey, sizeof(tmpkey));
 2579                         IEEE80211_ADDR_COPY(k->wk_macaddr, vap->iv_myaddr);
 2580                         if  (!ieee80211_crypto_setkey(vap, k))
 2581                                 error = EINVAL;
 2582                 } else
 2583                         error = EINVAL;
 2584                 ieee80211_key_update_end(vap);
 2585                 break;
 2586         case IEEE80211_IOC_WEPTXKEY:
 2587                 kid = (u_int) ireq->i_val;
 2588                 if (kid >= IEEE80211_WEP_NKID &&
 2589                     (uint16_t) kid != IEEE80211_KEYIX_NONE)
 2590                         return EINVAL;
 2591                 vap->iv_def_txkey = kid;
 2592                 break;
 2593         case IEEE80211_IOC_AUTHMODE:
 2594                 switch (ireq->i_val) {
 2595                 case IEEE80211_AUTH_WPA:
 2596                 case IEEE80211_AUTH_8021X:      /* 802.1x */
 2597                 case IEEE80211_AUTH_OPEN:       /* open */
 2598                 case IEEE80211_AUTH_SHARED:     /* shared-key */
 2599                 case IEEE80211_AUTH_AUTO:       /* auto */
 2600                         auth = ieee80211_authenticator_get(ireq->i_val);
 2601                         if (auth == NULL)
 2602                                 return EINVAL;
 2603                         break;
 2604                 default:
 2605                         return EINVAL;
 2606                 }
 2607                 switch (ireq->i_val) {
 2608                 case IEEE80211_AUTH_WPA:        /* WPA w/ 802.1x */
 2609                         vap->iv_flags |= IEEE80211_F_PRIVACY;
 2610                         ireq->i_val = IEEE80211_AUTH_8021X;
 2611                         break;
 2612                 case IEEE80211_AUTH_OPEN:       /* open */
 2613                         vap->iv_flags &= ~(IEEE80211_F_WPA|IEEE80211_F_PRIVACY);
 2614                         break;
 2615                 case IEEE80211_AUTH_SHARED:     /* shared-key */
 2616                 case IEEE80211_AUTH_8021X:      /* 802.1x */
 2617                         vap->iv_flags &= ~IEEE80211_F_WPA;
 2618                         /* both require a key so mark the PRIVACY capability */
 2619                         vap->iv_flags |= IEEE80211_F_PRIVACY;
 2620                         break;
 2621                 case IEEE80211_AUTH_AUTO:       /* auto */
 2622                         vap->iv_flags &= ~IEEE80211_F_WPA;
 2623                         /* XXX PRIVACY handling? */
 2624                         /* XXX what's the right way to do this? */
 2625                         break;
 2626                 }
 2627                 /* NB: authenticator attach/detach happens on state change */
 2628                 vap->iv_bss->ni_authmode = ireq->i_val;
 2629                 /* XXX mixed/mode/usage? */
 2630                 vap->iv_auth = auth;
 2631                 error = ENETRESET;
 2632                 break;
 2633         case IEEE80211_IOC_CHANNEL:
 2634                 error = ieee80211_ioctl_setchannel(vap, ireq);
 2635                 break;
 2636         case IEEE80211_IOC_POWERSAVE:
 2637                 switch (ireq->i_val) {
 2638                 case IEEE80211_POWERSAVE_OFF:
 2639                         if (vap->iv_flags & IEEE80211_F_PMGTON) {
 2640                                 ieee80211_syncflag(vap, -IEEE80211_F_PMGTON);
 2641                                 error = ERESTART;
 2642                         }
 2643                         break;
 2644                 case IEEE80211_POWERSAVE_ON:
 2645                         if ((vap->iv_caps & IEEE80211_C_PMGT) == 0)
 2646                                 error = EOPNOTSUPP;
 2647                         else if ((vap->iv_flags & IEEE80211_F_PMGTON) == 0) {
 2648                                 ieee80211_syncflag(vap, IEEE80211_F_PMGTON);
 2649                                 error = ERESTART;
 2650                         }
 2651                         break;
 2652                 default:
 2653                         error = EINVAL;
 2654                         break;
 2655                 }
 2656                 break;
 2657         case IEEE80211_IOC_POWERSAVESLEEP:
 2658                 if (ireq->i_val < 0)
 2659                         return EINVAL;
 2660                 ic->ic_lintval = ireq->i_val;
 2661                 error = ERESTART;
 2662                 break;
 2663         case IEEE80211_IOC_RTSTHRESHOLD:
 2664                 if (!(IEEE80211_RTS_MIN <= ireq->i_val &&
 2665                       ireq->i_val <= IEEE80211_RTS_MAX))
 2666                         return EINVAL;
 2667                 vap->iv_rtsthreshold = ireq->i_val;
 2668                 error = ERESTART;
 2669                 break;
 2670         case IEEE80211_IOC_PROTMODE:
 2671                 if (ireq->i_val > IEEE80211_PROT_RTSCTS)
 2672                         return EINVAL;
 2673                 ic->ic_protmode = ireq->i_val;
 2674                 /* NB: if not operating in 11g this can wait */
 2675                 if (ic->ic_bsschan != IEEE80211_CHAN_ANYC &&
 2676                     IEEE80211_IS_CHAN_ANYG(ic->ic_bsschan))
 2677                         error = ERESTART;
 2678                 break;
 2679         case IEEE80211_IOC_TXPOWER:
 2680                 if ((ic->ic_caps & IEEE80211_C_TXPMGT) == 0)
 2681                         return EOPNOTSUPP;
 2682                 if (!(IEEE80211_TXPOWER_MIN <= ireq->i_val &&
 2683                       ireq->i_val <= IEEE80211_TXPOWER_MAX))
 2684                         return EINVAL;
 2685                 ic->ic_txpowlimit = ireq->i_val;
 2686                 error = ERESTART;
 2687                 break;
 2688         case IEEE80211_IOC_ROAMING:
 2689                 if (!(IEEE80211_ROAMING_DEVICE <= ireq->i_val &&
 2690                     ireq->i_val <= IEEE80211_ROAMING_MANUAL))
 2691                         return EINVAL;
 2692                 vap->iv_roaming = ireq->i_val;
 2693                 /* XXXX reset? */
 2694                 break;
 2695         case IEEE80211_IOC_PRIVACY:
 2696                 if (ireq->i_val) {
 2697                         /* XXX check for key state? */
 2698                         vap->iv_flags |= IEEE80211_F_PRIVACY;
 2699                 } else
 2700                         vap->iv_flags &= ~IEEE80211_F_PRIVACY;
 2701                 /* XXX ERESTART? */
 2702                 break;
 2703         case IEEE80211_IOC_DROPUNENCRYPTED:
 2704                 if (ireq->i_val)
 2705                         vap->iv_flags |= IEEE80211_F_DROPUNENC;
 2706                 else
 2707                         vap->iv_flags &= ~IEEE80211_F_DROPUNENC;
 2708                 /* XXX ERESTART? */
 2709                 break;
 2710         case IEEE80211_IOC_WPAKEY:
 2711                 error = ieee80211_ioctl_setkey(vap, ireq);
 2712                 break;
 2713         case IEEE80211_IOC_DELKEY:
 2714                 error = ieee80211_ioctl_delkey(vap, ireq);
 2715                 break;
 2716         case IEEE80211_IOC_MLME:
 2717                 error = ieee80211_ioctl_setmlme(vap, ireq);
 2718                 break;
 2719         case IEEE80211_IOC_COUNTERMEASURES:
 2720                 if (ireq->i_val) {
 2721                         if ((vap->iv_flags & IEEE80211_F_WPA) == 0)
 2722                                 return EOPNOTSUPP;
 2723                         vap->iv_flags |= IEEE80211_F_COUNTERM;
 2724                 } else
 2725                         vap->iv_flags &= ~IEEE80211_F_COUNTERM;
 2726                 /* XXX ERESTART? */
 2727                 break;
 2728         case IEEE80211_IOC_WPA:
 2729                 if (ireq->i_val > 3)
 2730                         return EINVAL;
 2731                 /* XXX verify ciphers available */
 2732                 flags = vap->iv_flags & ~IEEE80211_F_WPA;
 2733                 switch (ireq->i_val) {
 2734                 case 1:
 2735                         if (!(vap->iv_caps & IEEE80211_C_WPA1))
 2736                                 return EOPNOTSUPP;
 2737                         flags |= IEEE80211_F_WPA1;
 2738                         break;
 2739                 case 2:
 2740                         if (!(vap->iv_caps & IEEE80211_C_WPA2))
 2741                                 return EOPNOTSUPP;
 2742                         flags |= IEEE80211_F_WPA2;
 2743                         break;
 2744                 case 3:
 2745                         if ((vap->iv_caps & IEEE80211_C_WPA) != IEEE80211_C_WPA)
 2746                                 return EOPNOTSUPP;
 2747                         flags |= IEEE80211_F_WPA1 | IEEE80211_F_WPA2;
 2748                         break;
 2749                 default:        /*  Can't set any -> error */
 2750                         return EOPNOTSUPP;
 2751                 }
 2752                 vap->iv_flags = flags;
 2753                 error = ERESTART;       /* NB: can change beacon frame */
 2754                 break;
 2755         case IEEE80211_IOC_WME:
 2756                 if (ireq->i_val) {
 2757                         if ((vap->iv_caps & IEEE80211_C_WME) == 0)
 2758                                 return EOPNOTSUPP;
 2759                         ieee80211_syncflag(vap, IEEE80211_F_WME);
 2760                 } else
 2761                         ieee80211_syncflag(vap, -IEEE80211_F_WME);
 2762                 error = ERESTART;       /* NB: can change beacon frame */
 2763                 break;
 2764         case IEEE80211_IOC_HIDESSID:
 2765                 if (ireq->i_val)
 2766                         vap->iv_flags |= IEEE80211_F_HIDESSID;
 2767                 else
 2768                         vap->iv_flags &= ~IEEE80211_F_HIDESSID;
 2769                 error = ERESTART;               /* XXX ENETRESET? */
 2770                 break;
 2771         case IEEE80211_IOC_APBRIDGE:
 2772                 if (ireq->i_val == 0)
 2773                         vap->iv_flags |= IEEE80211_F_NOBRIDGE;
 2774                 else
 2775                         vap->iv_flags &= ~IEEE80211_F_NOBRIDGE;
 2776                 break;
 2777         case IEEE80211_IOC_BSSID:
 2778                 if (ireq->i_len != sizeof(tmpbssid))
 2779                         return EINVAL;
 2780                 error = copyin(ireq->i_data, tmpbssid, ireq->i_len);
 2781                 if (error)
 2782                         break;
 2783                 IEEE80211_ADDR_COPY(vap->iv_des_bssid, tmpbssid);
 2784                 if (IEEE80211_ADDR_EQ(vap->iv_des_bssid, zerobssid))
 2785                         vap->iv_flags &= ~IEEE80211_F_DESBSSID;
 2786                 else
 2787                         vap->iv_flags |= IEEE80211_F_DESBSSID;
 2788                 error = ENETRESET;
 2789                 break;
 2790         case IEEE80211_IOC_CHANLIST:
 2791                 error = ieee80211_ioctl_setchanlist(vap, ireq);
 2792                 break;
 2793 #define OLD_IEEE80211_IOC_SCAN_REQ      23
 2794 #ifdef OLD_IEEE80211_IOC_SCAN_REQ
 2795         case OLD_IEEE80211_IOC_SCAN_REQ:
 2796                 IEEE80211_DPRINTF(vap, IEEE80211_MSG_SCAN,
 2797                         "%s: active scan request\n", __func__);
 2798                 /*
 2799                  * If we are in INIT state then the driver has never
 2800                  * had a chance to setup hardware state to do a scan;
 2801                  * use the state machine to get us up the SCAN state.
 2802                  * Otherwise just invoke the scan machinery to start
 2803                  * a one-time scan.
 2804                  */
 2805                 if (vap->iv_state == IEEE80211_S_INIT)
 2806                         ieee80211_new_state(vap, IEEE80211_S_SCAN, 0);
 2807                 else
 2808                         (void) ieee80211_start_scan(vap,
 2809                                 IEEE80211_SCAN_ACTIVE |
 2810                                 IEEE80211_SCAN_NOPICK |
 2811                                 IEEE80211_SCAN_ONCE,
 2812                                 IEEE80211_SCAN_FOREVER, 0, 0,
 2813                                 /* XXX use ioctl params */
 2814                                 vap->iv_des_nssid, vap->iv_des_ssid);
 2815                 break;
 2816 #endif /* OLD_IEEE80211_IOC_SCAN_REQ */
 2817         case IEEE80211_IOC_SCAN_REQ:
 2818                 error = ieee80211_ioctl_scanreq(vap, ireq);
 2819                 break;
 2820         case IEEE80211_IOC_SCAN_CANCEL:
 2821                 IEEE80211_DPRINTF(vap, IEEE80211_MSG_SCAN,
 2822                     "%s: cancel scan\n", __func__);
 2823                 ieee80211_cancel_scan(vap);
 2824                 break;
 2825         case IEEE80211_IOC_HTCONF:
 2826                 if (ireq->i_val & 1)
 2827                         ieee80211_syncflag_ht(vap, IEEE80211_FHT_HT);
 2828                 else
 2829                         ieee80211_syncflag_ht(vap, -IEEE80211_FHT_HT);
 2830                 if (ireq->i_val & 2)
 2831                         ieee80211_syncflag_ht(vap, IEEE80211_FHT_USEHT40);
 2832                 else
 2833                         ieee80211_syncflag_ht(vap, -IEEE80211_FHT_USEHT40);
 2834                 error = ENETRESET;
 2835                 break;
 2836         case IEEE80211_IOC_ADDMAC:
 2837         case IEEE80211_IOC_DELMAC:
 2838                 error = ieee80211_ioctl_macmac(vap, ireq);
 2839                 break;
 2840         case IEEE80211_IOC_MACCMD:
 2841                 error = ieee80211_ioctl_setmaccmd(vap, ireq);
 2842                 break;
 2843         case IEEE80211_IOC_STA_STATS:
 2844                 error = ieee80211_ioctl_setstastats(vap, ireq);
 2845                 break;
 2846         case IEEE80211_IOC_STA_TXPOW:
 2847                 error = ieee80211_ioctl_setstatxpow(vap, ireq);
 2848                 break;
 2849         case IEEE80211_IOC_WME_CWMIN:           /* WME: CWmin */
 2850         case IEEE80211_IOC_WME_CWMAX:           /* WME: CWmax */
 2851         case IEEE80211_IOC_WME_AIFS:            /* WME: AIFS */
 2852         case IEEE80211_IOC_WME_TXOPLIMIT:       /* WME: txops limit */
 2853         case IEEE80211_IOC_WME_ACM:             /* WME: ACM (bss only) */
 2854         case IEEE80211_IOC_WME_ACKPOLICY:       /* WME: ACK policy (bss only) */
 2855                 error = ieee80211_ioctl_setwmeparam(vap, ireq);
 2856                 break;
 2857         case IEEE80211_IOC_DTIM_PERIOD:
 2858                 if (vap->iv_opmode != IEEE80211_M_HOSTAP &&
 2859                     vap->iv_opmode != IEEE80211_M_MBSS &&
 2860                     vap->iv_opmode != IEEE80211_M_IBSS)
 2861                         return EINVAL;
 2862                 if (IEEE80211_DTIM_MIN <= ireq->i_val &&
 2863                     ireq->i_val <= IEEE80211_DTIM_MAX) {
 2864                         vap->iv_dtim_period = ireq->i_val;
 2865                         error = ENETRESET;              /* requires restart */
 2866                 } else
 2867                         error = EINVAL;
 2868                 break;
 2869         case IEEE80211_IOC_BEACON_INTERVAL:
 2870                 if (vap->iv_opmode != IEEE80211_M_HOSTAP &&
 2871                     vap->iv_opmode != IEEE80211_M_MBSS &&
 2872                     vap->iv_opmode != IEEE80211_M_IBSS)
 2873                         return EINVAL;
 2874                 if (IEEE80211_BINTVAL_MIN <= ireq->i_val &&
 2875                     ireq->i_val <= IEEE80211_BINTVAL_MAX) {
 2876                         ic->ic_bintval = ireq->i_val;
 2877                         error = ENETRESET;              /* requires restart */
 2878                 } else
 2879                         error = EINVAL;
 2880                 break;
 2881         case IEEE80211_IOC_PUREG:
 2882                 if (ireq->i_val)
 2883                         vap->iv_flags |= IEEE80211_F_PUREG;
 2884                 else
 2885                         vap->iv_flags &= ~IEEE80211_F_PUREG;
 2886                 /* NB: reset only if we're operating on an 11g channel */
 2887                 if (isvap11g(vap))
 2888                         error = ENETRESET;
 2889                 break;
 2890         case IEEE80211_IOC_BGSCAN:
 2891                 if (ireq->i_val) {
 2892                         if ((vap->iv_caps & IEEE80211_C_BGSCAN) == 0)
 2893                                 return EOPNOTSUPP;
 2894                         vap->iv_flags |= IEEE80211_F_BGSCAN;
 2895                 } else
 2896                         vap->iv_flags &= ~IEEE80211_F_BGSCAN;
 2897                 break;
 2898         case IEEE80211_IOC_BGSCAN_IDLE:
 2899                 if (ireq->i_val >= IEEE80211_BGSCAN_IDLE_MIN)
 2900                         vap->iv_bgscanidle = ireq->i_val*hz/1000;
 2901                 else
 2902                         error = EINVAL;
 2903                 break;
 2904         case IEEE80211_IOC_BGSCAN_INTERVAL:
 2905                 if (ireq->i_val >= IEEE80211_BGSCAN_INTVAL_MIN)
 2906                         vap->iv_bgscanintvl = ireq->i_val*hz;
 2907                 else
 2908                         error = EINVAL;
 2909                 break;
 2910         case IEEE80211_IOC_SCANVALID:
 2911                 if (ireq->i_val >= IEEE80211_SCAN_VALID_MIN)
 2912                         vap->iv_scanvalid = ireq->i_val*hz;
 2913                 else
 2914                         error = EINVAL;
 2915                 break;
 2916         case IEEE80211_IOC_FRAGTHRESHOLD:
 2917                 if ((vap->iv_caps & IEEE80211_C_TXFRAG) == 0 &&
 2918                     ireq->i_val != IEEE80211_FRAG_MAX)
 2919                         return EOPNOTSUPP;
 2920                 if (!(IEEE80211_FRAG_MIN <= ireq->i_val &&
 2921                       ireq->i_val <= IEEE80211_FRAG_MAX))
 2922                         return EINVAL;
 2923                 vap->iv_fragthreshold = ireq->i_val;
 2924                 error = ERESTART;
 2925                 break;
 2926         case IEEE80211_IOC_BURST:
 2927                 if (ireq->i_val) {
 2928                         if ((vap->iv_caps & IEEE80211_C_BURST) == 0)
 2929                                 return EOPNOTSUPP;
 2930                         ieee80211_syncflag(vap, IEEE80211_F_BURST);
 2931                 } else
 2932                         ieee80211_syncflag(vap, -IEEE80211_F_BURST);
 2933                 error = ERESTART;
 2934                 break;
 2935         case IEEE80211_IOC_BMISSTHRESHOLD:
 2936                 if (!(IEEE80211_HWBMISS_MIN <= ireq->i_val &&
 2937                       ireq->i_val <= IEEE80211_HWBMISS_MAX))
 2938                         return EINVAL;
 2939                 vap->iv_bmissthreshold = ireq->i_val;
 2940                 error = ERESTART;
 2941                 break;
 2942         case IEEE80211_IOC_CURCHAN:
 2943                 error = ieee80211_ioctl_setcurchan(vap, ireq);
 2944                 break;
 2945         case IEEE80211_IOC_SHORTGI:
 2946                 if (ireq->i_val) {
 2947 #define IEEE80211_HTCAP_SHORTGI \
 2948         (IEEE80211_HTCAP_SHORTGI20 | IEEE80211_HTCAP_SHORTGI40)
 2949                         if (((ireq->i_val ^ vap->iv_htcaps) & IEEE80211_HTCAP_SHORTGI) != 0)
 2950                                 return EINVAL;
 2951                         if (ireq->i_val & IEEE80211_HTCAP_SHORTGI20)
 2952                                 vap->iv_flags_ht |= IEEE80211_FHT_SHORTGI20;
 2953                         if (ireq->i_val & IEEE80211_HTCAP_SHORTGI40)
 2954                                 vap->iv_flags_ht |= IEEE80211_FHT_SHORTGI40;
 2955 #undef IEEE80211_HTCAP_SHORTGI
 2956                 } else
 2957                         vap->iv_flags_ht &=
 2958                             ~(IEEE80211_FHT_SHORTGI20 | IEEE80211_FHT_SHORTGI40);
 2959                 error = ERESTART;
 2960                 break;
 2961         case IEEE80211_IOC_AMPDU:
 2962                 if (ireq->i_val && (vap->iv_htcaps & IEEE80211_HTC_AMPDU) == 0)
 2963                         return EINVAL;
 2964                 if (ireq->i_val & 1)
 2965                         vap->iv_flags_ht |= IEEE80211_FHT_AMPDU_TX;
 2966                 else
 2967                         vap->iv_flags_ht &= ~IEEE80211_FHT_AMPDU_TX;
 2968                 if (ireq->i_val & 2)
 2969                         vap->iv_flags_ht |= IEEE80211_FHT_AMPDU_RX;
 2970                 else
 2971                         vap->iv_flags_ht &= ~IEEE80211_FHT_AMPDU_RX;
 2972                 /* NB: reset only if we're operating on an 11n channel */
 2973                 if (isvapht(vap))
 2974                         error = ERESTART;
 2975                 break;
 2976         case IEEE80211_IOC_AMPDU_LIMIT:
 2977                 if (!(IEEE80211_HTCAP_MAXRXAMPDU_8K <= ireq->i_val &&
 2978                       ireq->i_val <= IEEE80211_HTCAP_MAXRXAMPDU_64K))
 2979                         return EINVAL;
 2980                 if (vap->iv_opmode == IEEE80211_M_HOSTAP)
 2981                         vap->iv_ampdu_rxmax = ireq->i_val;
 2982                 else
 2983                         vap->iv_ampdu_limit = ireq->i_val;
 2984                 error = ERESTART;
 2985                 break;
 2986         case IEEE80211_IOC_AMPDU_DENSITY:
 2987                 if (!(IEEE80211_HTCAP_MPDUDENSITY_NA <= ireq->i_val &&
 2988                       ireq->i_val <= IEEE80211_HTCAP_MPDUDENSITY_16))
 2989                         return EINVAL;
 2990                 vap->iv_ampdu_density = ireq->i_val;
 2991                 error = ERESTART;
 2992                 break;
 2993         case IEEE80211_IOC_AMSDU:
 2994                 if (ireq->i_val && (vap->iv_htcaps & IEEE80211_HTC_AMSDU) == 0)
 2995                         return EINVAL;
 2996                 if (ireq->i_val & 1)
 2997                         vap->iv_flags_ht |= IEEE80211_FHT_AMSDU_TX;
 2998                 else
 2999                         vap->iv_flags_ht &= ~IEEE80211_FHT_AMSDU_TX;
 3000                 if (ireq->i_val & 2)
 3001                         vap->iv_flags_ht |= IEEE80211_FHT_AMSDU_RX;
 3002                 else
 3003                         vap->iv_flags_ht &= ~IEEE80211_FHT_AMSDU_RX;
 3004                 /* NB: reset only if we're operating on an 11n channel */
 3005                 if (isvapht(vap))
 3006                         error = ERESTART;
 3007                 break;
 3008         case IEEE80211_IOC_AMSDU_LIMIT:
 3009                 /* XXX validate */
 3010                 vap->iv_amsdu_limit = ireq->i_val;      /* XXX truncation? */
 3011                 break;
 3012         case IEEE80211_IOC_PUREN:
 3013                 if (ireq->i_val) {
 3014                         if ((vap->iv_flags_ht & IEEE80211_FHT_HT) == 0)
 3015                                 return EINVAL;
 3016                         vap->iv_flags_ht |= IEEE80211_FHT_PUREN;
 3017                 } else
 3018                         vap->iv_flags_ht &= ~IEEE80211_FHT_PUREN;
 3019                 /* NB: reset only if we're operating on an 11n channel */
 3020                 if (isvapht(vap))
 3021                         error = ERESTART;
 3022                 break;
 3023         case IEEE80211_IOC_DOTH:
 3024                 if (ireq->i_val) {
 3025 #if 0
 3026                         /* XXX no capability */
 3027                         if ((vap->iv_caps & IEEE80211_C_DOTH) == 0)
 3028                                 return EOPNOTSUPP;
 3029 #endif
 3030                         vap->iv_flags |= IEEE80211_F_DOTH;
 3031                 } else
 3032                         vap->iv_flags &= ~IEEE80211_F_DOTH;
 3033                 error = ENETRESET;
 3034                 break;
 3035         case IEEE80211_IOC_REGDOMAIN:
 3036                 error = ieee80211_ioctl_setregdomain(vap, ireq);
 3037                 break;
 3038         case IEEE80211_IOC_ROAM:
 3039                 error = ieee80211_ioctl_setroam(vap, ireq);
 3040                 break;
 3041         case IEEE80211_IOC_TXPARAMS:
 3042                 error = ieee80211_ioctl_settxparams(vap, ireq);
 3043                 break;
 3044         case IEEE80211_IOC_HTCOMPAT:
 3045                 if (ireq->i_val) {
 3046                         if ((vap->iv_flags_ht & IEEE80211_FHT_HT) == 0)
 3047                                 return EOPNOTSUPP;
 3048                         vap->iv_flags_ht |= IEEE80211_FHT_HTCOMPAT;
 3049                 } else
 3050                         vap->iv_flags_ht &= ~IEEE80211_FHT_HTCOMPAT;
 3051                 /* NB: reset only if we're operating on an 11n channel */
 3052                 if (isvapht(vap))
 3053                         error = ERESTART;
 3054                 break;
 3055         case IEEE80211_IOC_DWDS:
 3056                 if (ireq->i_val) {
 3057                         /* NB: DWDS only makes sense for WDS-capable devices */
 3058                         if ((ic->ic_caps & IEEE80211_C_WDS) == 0)
 3059                                 return EOPNOTSUPP;
 3060                         /* NB: DWDS is used only with ap+sta vaps */
 3061                         if (vap->iv_opmode != IEEE80211_M_HOSTAP &&
 3062                             vap->iv_opmode != IEEE80211_M_STA)
 3063                                 return EINVAL;
 3064                         vap->iv_flags |= IEEE80211_F_DWDS;
 3065                         if (vap->iv_opmode == IEEE80211_M_STA)
 3066                                 vap->iv_flags_ext |= IEEE80211_FEXT_4ADDR;
 3067                 } else {
 3068                         vap->iv_flags &= ~IEEE80211_F_DWDS;
 3069                         if (vap->iv_opmode == IEEE80211_M_STA)
 3070                                 vap->iv_flags_ext &= ~IEEE80211_FEXT_4ADDR;
 3071                 }
 3072                 break;
 3073         case IEEE80211_IOC_INACTIVITY:
 3074                 if (ireq->i_val)
 3075                         vap->iv_flags_ext |= IEEE80211_FEXT_INACT;
 3076                 else
 3077                         vap->iv_flags_ext &= ~IEEE80211_FEXT_INACT;
 3078                 break;
 3079         case IEEE80211_IOC_APPIE:
 3080                 error = ieee80211_ioctl_setappie(vap, ireq);
 3081                 break;
 3082         case IEEE80211_IOC_WPS:
 3083                 if (ireq->i_val) {
 3084                         if ((vap->iv_caps & IEEE80211_C_WPA) == 0)
 3085                                 return EOPNOTSUPP;
 3086                         vap->iv_flags_ext |= IEEE80211_FEXT_WPS;
 3087                 } else
 3088                         vap->iv_flags_ext &= ~IEEE80211_FEXT_WPS;
 3089                 break;
 3090         case IEEE80211_IOC_TSN:
 3091                 if (ireq->i_val) {
 3092                         if ((vap->iv_caps & IEEE80211_C_WPA) == 0)
 3093                                 return EOPNOTSUPP;
 3094                         vap->iv_flags_ext |= IEEE80211_FEXT_TSN;
 3095                 } else
 3096                         vap->iv_flags_ext &= ~IEEE80211_FEXT_TSN;
 3097                 break;
 3098         case IEEE80211_IOC_CHANSWITCH:
 3099                 error = ieee80211_ioctl_chanswitch(vap, ireq);
 3100                 break;
 3101         case IEEE80211_IOC_DFS:
 3102                 if (ireq->i_val) {
 3103                         if ((vap->iv_caps & IEEE80211_C_DFS) == 0)
 3104                                 return EOPNOTSUPP;
 3105                         /* NB: DFS requires 11h support */
 3106                         if ((vap->iv_flags & IEEE80211_F_DOTH) == 0)
 3107                                 return EINVAL;
 3108                         vap->iv_flags_ext |= IEEE80211_FEXT_DFS;
 3109                 } else
 3110                         vap->iv_flags_ext &= ~IEEE80211_FEXT_DFS;
 3111                 break;
 3112         case IEEE80211_IOC_DOTD:
 3113                 if (ireq->i_val)
 3114                         vap->iv_flags_ext |= IEEE80211_FEXT_DOTD;
 3115                 else
 3116                         vap->iv_flags_ext &= ~IEEE80211_FEXT_DOTD;
 3117                 if (vap->iv_opmode == IEEE80211_M_STA)
 3118                         error = ENETRESET;
 3119                 break;
 3120         case IEEE80211_IOC_HTPROTMODE:
 3121                 if (ireq->i_val > IEEE80211_PROT_RTSCTS)
 3122                         return EINVAL;
 3123                 ic->ic_htprotmode = ireq->i_val ?
 3124                     IEEE80211_PROT_RTSCTS : IEEE80211_PROT_NONE;
 3125                 /* NB: if not operating in 11n this can wait */
 3126                 if (isvapht(vap))
 3127                         error = ERESTART;
 3128                 break;
 3129         case IEEE80211_IOC_STA_VLAN:
 3130                 error = ieee80211_ioctl_setstavlan(vap, ireq);
 3131                 break;
 3132         case IEEE80211_IOC_SMPS:
 3133                 if ((ireq->i_val &~ IEEE80211_HTCAP_SMPS) != 0 ||
 3134                     ireq->i_val == 0x0008)      /* value of 2 is reserved */
 3135                         return EINVAL;
 3136                 if (ireq->i_val != IEEE80211_HTCAP_SMPS_OFF &&
 3137                     (vap->iv_htcaps & IEEE80211_HTC_SMPS) == 0)
 3138                         return EOPNOTSUPP;
 3139                 vap->iv_htcaps = (vap->iv_htcaps &~ IEEE80211_HTCAP_SMPS) |
 3140                         ireq->i_val;
 3141                 /* NB: if not operating in 11n this can wait */
 3142                 if (isvapht(vap))
 3143                         error = ERESTART;
 3144                 break;
 3145         case IEEE80211_IOC_RIFS:
 3146                 if (ireq->i_val != 0) {
 3147                         if ((vap->iv_htcaps & IEEE80211_HTC_RIFS) == 0)
 3148                                 return EOPNOTSUPP;
 3149                         vap->iv_flags_ht |= IEEE80211_FHT_RIFS;
 3150                 } else
 3151                         vap->iv_flags_ht &= ~IEEE80211_FHT_RIFS;
 3152                 /* NB: if not operating in 11n this can wait */
 3153                 if (isvapht(vap))
 3154                         error = ERESTART;
 3155                 break;
 3156         default:
 3157                 error = ieee80211_ioctl_setdefault(vap, ireq);
 3158                 break;
 3159         }
 3160         /*
 3161          * The convention is that ENETRESET means an operation
 3162          * requires a complete re-initialization of the device (e.g.
 3163          * changing something that affects the association state).
 3164          * ERESTART means the request may be handled with only a
 3165          * reload of the hardware state.  We hand ERESTART requests
 3166          * to the iv_reset callback so the driver can decide.  If
 3167          * a device does not fillin iv_reset then it defaults to one
 3168          * that returns ENETRESET.  Otherwise a driver may return
 3169          * ENETRESET (in which case a full reset will be done) or
 3170          * 0 to mean there's no need to do anything (e.g. when the
 3171          * change has no effect on the driver/device).
 3172          */
 3173         if (error == ERESTART)
 3174                 error = IFNET_IS_UP_RUNNING(vap->iv_ifp) ?
 3175                     vap->iv_reset(vap, ireq->i_type) : 0;
 3176         if (error == ENETRESET) {
 3177                 /* XXX need to re-think AUTO handling */
 3178                 if (IS_UP_AUTO(vap))
 3179                         ieee80211_init(vap);
 3180                 error = 0;
 3181         }
 3182         return error;
 3183 }
 3184 
 3185 /*
 3186  * Rebuild the parent's multicast address list after an add/del
 3187  * of a multicast address for a vap.  We have no way to tell
 3188  * what happened above to optimize the work so we purge the entire
 3189  * list and rebuild from scratch.  This is way expensive.
 3190  * Note also the half-baked workaround for if_addmulti calling
 3191  * back to the parent device; there's no way to insert mcast
 3192  * entries quietly and/or cheaply.
 3193  */
 3194 static void
 3195 ieee80211_ioctl_updatemulti(struct ieee80211com *ic)
 3196 {
 3197         struct ifnet *parent = ic->ic_ifp;
 3198         struct ieee80211vap *vap;
 3199         void *ioctl;
 3200 
 3201         IEEE80211_LOCK(ic);
 3202         if_purgemaddrs(parent);
 3203         ioctl = parent->if_ioctl;       /* XXX WAR if_allmulti */
 3204         parent->if_ioctl = NULL;
 3205         TAILQ_FOREACH(vap, &ic->ic_vaps, iv_next) {
 3206                 struct ifnet *ifp = vap->iv_ifp;
 3207                 struct ifmultiaddr *ifma;
 3208 
 3209                 TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link)
 3210                         (void) if_addmulti(parent, ifma->ifma_addr, NULL);
 3211         }
 3212         parent->if_ioctl = ioctl;
 3213         ieee80211_runtask(ic, &ic->ic_mcast_task);
 3214         IEEE80211_UNLOCK(ic);
 3215 }
 3216 
 3217 int
 3218 ieee80211_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
 3219 {
 3220         struct ieee80211vap *vap = ifp->if_softc;
 3221         struct ieee80211com *ic = vap->iv_ic;
 3222         int error = 0;
 3223         struct ifreq *ifr;
 3224         struct ifaddr *ifa;                     /* XXX */
 3225 
 3226         switch (cmd) {
 3227         case SIOCSIFFLAGS:
 3228                 IEEE80211_LOCK(ic);
 3229                 ieee80211_syncifflag_locked(ic, IFF_PROMISC);
 3230                 ieee80211_syncifflag_locked(ic, IFF_ALLMULTI);
 3231                 if (ifp->if_flags & IFF_UP) {
 3232                         /*
 3233                          * Bring ourself up unless we're already operational.
 3234                          * If we're the first vap and the parent is not up
 3235                          * then it will automatically be brought up as a
 3236                          * side-effect of bringing ourself up.
 3237                          */
 3238                         if (vap->iv_state == IEEE80211_S_INIT)
 3239                                 ieee80211_start_locked(vap);
 3240                 } else if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
 3241                         /*
 3242                          * Stop ourself.  If we are the last vap to be
 3243                          * marked down the parent will also be taken down.
 3244                          */
 3245                         ieee80211_stop_locked(vap);
 3246                 }
 3247                 IEEE80211_UNLOCK(ic);
 3248                 /* Wait for parent ioctl handler if it was queued */
 3249                 ieee80211_waitfor_parent(ic);
 3250                 break;
 3251         case SIOCADDMULTI:
 3252         case SIOCDELMULTI:
 3253                 ieee80211_ioctl_updatemulti(ic);
 3254                 break;
 3255         case SIOCSIFMEDIA:
 3256         case SIOCGIFMEDIA:
 3257                 ifr = (struct ifreq *)data;
 3258                 error = ifmedia_ioctl(ifp, ifr, &vap->iv_media, cmd);
 3259                 break;
 3260         case SIOCG80211:
 3261                 error = ieee80211_ioctl_get80211(vap, cmd,
 3262                                 (struct ieee80211req *) data);
 3263                 break;
 3264         case SIOCS80211:
 3265                 error = priv_check(curthread, PRIV_NET80211_MANAGE);
 3266                 if (error == 0)
 3267                         error = ieee80211_ioctl_set80211(vap, cmd,
 3268                                         (struct ieee80211req *) data);
 3269                 break;
 3270         case SIOCG80211STATS:
 3271                 ifr = (struct ifreq *)data;
 3272                 copyout(&vap->iv_stats, ifr->ifr_data, sizeof (vap->iv_stats));
 3273                 break;
 3274         case SIOCSIFMTU:
 3275                 ifr = (struct ifreq *)data;
 3276                 if (!(IEEE80211_MTU_MIN <= ifr->ifr_mtu &&
 3277                     ifr->ifr_mtu <= IEEE80211_MTU_MAX))
 3278                         error = EINVAL;
 3279                 else
 3280                         ifp->if_mtu = ifr->ifr_mtu;
 3281                 break;
 3282         case SIOCSIFADDR:
 3283                 /*
 3284                  * XXX Handle this directly so we can supress if_init calls.
 3285                  * XXX This should be done in ether_ioctl but for the moment
 3286                  * XXX there are too many other parts of the system that
 3287                  * XXX set IFF_UP and so supress if_init being called when
 3288                  * XXX it should be.
 3289                  */
 3290                 ifa = (struct ifaddr *) data;
 3291                 switch (ifa->ifa_addr->sa_family) {
 3292 #ifdef INET
 3293                 case AF_INET:
 3294                         if ((ifp->if_flags & IFF_UP) == 0) {
 3295                                 ifp->if_flags |= IFF_UP;
 3296                                 ifp->if_init(ifp->if_softc);
 3297                         }
 3298                         arp_ifinit(ifp, ifa);
 3299                         break;
 3300 #endif
 3301 #ifdef IPX
 3302                 /*
 3303                  * XXX - This code is probably wrong,
 3304                  *       but has been copied many times.
 3305                  */
 3306                 case AF_IPX: {
 3307                         struct ipx_addr *ina = &(IA_SIPX(ifa)->sipx_addr);
 3308 
 3309                         if (ipx_nullhost(*ina))
 3310                                 ina->x_host = *(union ipx_host *)
 3311                                     IF_LLADDR(ifp);
 3312                         else
 3313                                 bcopy((caddr_t) ina->x_host.c_host,
 3314                                       (caddr_t) IF_LLADDR(ifp),
 3315                                       ETHER_ADDR_LEN);
 3316                         /* fall thru... */
 3317                 }
 3318 #endif
 3319                 default:
 3320                         if ((ifp->if_flags & IFF_UP) == 0) {
 3321                                 ifp->if_flags |= IFF_UP;
 3322                                 ifp->if_init(ifp->if_softc);
 3323                         }
 3324                         break;
 3325                 }
 3326                 break;
 3327         /* Pass NDIS ioctls up to the driver */
 3328         case SIOCGDRVSPEC:
 3329         case SIOCSDRVSPEC:
 3330         case SIOCGPRIVATE_0: {
 3331                 struct ifnet *parent = vap->iv_ic->ic_ifp;
 3332                 error = parent->if_ioctl(parent, cmd, data);
 3333                 break;
 3334         }
 3335         default:
 3336                 error = ether_ioctl(ifp, cmd, data);
 3337                 break;
 3338         }
 3339         return error;
 3340 }

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