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/11.2/sys/net80211/ieee80211_ioctl.c 332288 2018-04-08 16:54:07Z brooks $");
   29 
   30 /*
   31  * IEEE 802.11 ioctl support (FreeBSD-specific)
   32  */
   33 
   34 #include "opt_inet.h"
   35 #include "opt_wlan.h"
   36 
   37 #include <sys/endian.h>
   38 #include <sys/param.h>
   39 #include <sys/kernel.h>
   40 #include <sys/malloc.h>
   41 #include <sys/priv.h>
   42 #include <sys/socket.h>
   43 #include <sys/sockio.h>
   44 #include <sys/systm.h>
   45  
   46 #include <net/if.h>
   47 #include <net/if_var.h>
   48 #include <net/if_dl.h>
   49 #include <net/if_media.h>
   50 #include <net/ethernet.h>
   51 
   52 #ifdef INET
   53 #include <netinet/in.h>
   54 #include <netinet/if_ether.h>
   55 #endif
   56 
   57 #include <net80211/ieee80211_var.h>
   58 #include <net80211/ieee80211_ioctl.h>
   59 #include <net80211/ieee80211_regdomain.h>
   60 #include <net80211/ieee80211_input.h>
   61 
   62 #define IS_UP_AUTO(_vap) \
   63         (IFNET_IS_UP_RUNNING((_vap)->iv_ifp) && \
   64          (_vap)->iv_roaming == IEEE80211_ROAMING_AUTO)
   65 
   66 static const uint8_t zerobssid[IEEE80211_ADDR_LEN];
   67 static struct ieee80211_channel *findchannel(struct ieee80211com *,
   68                 int ieee, int mode);
   69 static int ieee80211_scanreq(struct ieee80211vap *,
   70                 struct ieee80211_scan_req *);
   71 
   72 static int
   73 ieee80211_ioctl_getkey(struct ieee80211vap *vap, struct ieee80211req *ireq)
   74 {
   75         struct ieee80211com *ic = vap->iv_ic;
   76         struct ieee80211_node *ni;
   77         struct ieee80211req_key ik;
   78         struct ieee80211_key *wk;
   79         const struct ieee80211_cipher *cip;
   80         u_int kid;
   81         int error;
   82 
   83         if (ireq->i_len != sizeof(ik))
   84                 return EINVAL;
   85         error = copyin(ireq->i_data, &ik, sizeof(ik));
   86         if (error)
   87                 return error;
   88         kid = ik.ik_keyix;
   89         if (kid == IEEE80211_KEYIX_NONE) {
   90                 ni = ieee80211_find_vap_node(&ic->ic_sta, vap, ik.ik_macaddr);
   91                 if (ni == NULL)
   92                         return ENOENT;
   93                 wk = &ni->ni_ucastkey;
   94         } else {
   95                 if (kid >= IEEE80211_WEP_NKID)
   96                         return EINVAL;
   97                 wk = &vap->iv_nw_keys[kid];
   98                 IEEE80211_ADDR_COPY(&ik.ik_macaddr, vap->iv_bss->ni_macaddr);
   99                 ni = NULL;
  100         }
  101         cip = wk->wk_cipher;
  102         ik.ik_type = cip->ic_cipher;
  103         ik.ik_keylen = wk->wk_keylen;
  104         ik.ik_flags = wk->wk_flags & (IEEE80211_KEY_XMIT | IEEE80211_KEY_RECV);
  105         if (wk->wk_keyix == vap->iv_def_txkey)
  106                 ik.ik_flags |= IEEE80211_KEY_DEFAULT;
  107         if (priv_check(curthread, PRIV_NET80211_GETKEY) == 0) {
  108                 /* NB: only root can read key data */
  109                 ik.ik_keyrsc = wk->wk_keyrsc[IEEE80211_NONQOS_TID];
  110                 ik.ik_keytsc = wk->wk_keytsc;
  111                 memcpy(ik.ik_keydata, wk->wk_key, wk->wk_keylen);
  112                 if (cip->ic_cipher == IEEE80211_CIPHER_TKIP) {
  113                         memcpy(ik.ik_keydata+wk->wk_keylen,
  114                                 wk->wk_key + IEEE80211_KEYBUF_SIZE,
  115                                 IEEE80211_MICBUF_SIZE);
  116                         ik.ik_keylen += IEEE80211_MICBUF_SIZE;
  117                 }
  118         } else {
  119                 ik.ik_keyrsc = 0;
  120                 ik.ik_keytsc = 0;
  121                 memset(ik.ik_keydata, 0, sizeof(ik.ik_keydata));
  122         }
  123         if (ni != NULL)
  124                 ieee80211_free_node(ni);
  125         return copyout(&ik, ireq->i_data, sizeof(ik));
  126 }
  127 
  128 static int
  129 ieee80211_ioctl_getchanlist(struct ieee80211vap *vap, struct ieee80211req *ireq)
  130 {
  131         struct ieee80211com *ic = vap->iv_ic;
  132 
  133         if (sizeof(ic->ic_chan_active) < ireq->i_len)
  134                 ireq->i_len = sizeof(ic->ic_chan_active);
  135         return copyout(&ic->ic_chan_active, ireq->i_data, ireq->i_len);
  136 }
  137 
  138 static int
  139 ieee80211_ioctl_getchaninfo(struct ieee80211vap *vap, struct ieee80211req *ireq)
  140 {
  141         struct ieee80211com *ic = vap->iv_ic;
  142         uint32_t space;
  143 
  144         space = __offsetof(struct ieee80211req_chaninfo,
  145                         ic_chans[ic->ic_nchans]);
  146         if (space > ireq->i_len)
  147                 space = ireq->i_len;
  148         /* XXX assumes compatible layout */
  149         return copyout(&ic->ic_nchans, ireq->i_data, space);
  150 }
  151 
  152 static int
  153 ieee80211_ioctl_getwpaie(struct ieee80211vap *vap,
  154         struct ieee80211req *ireq, int req)
  155 {
  156         struct ieee80211_node *ni;
  157         struct ieee80211req_wpaie2 *wpaie;
  158         int error;
  159 
  160         if (ireq->i_len < IEEE80211_ADDR_LEN)
  161                 return EINVAL;
  162         wpaie = IEEE80211_MALLOC(sizeof(*wpaie), M_TEMP,
  163             IEEE80211_M_NOWAIT | IEEE80211_M_ZERO);
  164         if (wpaie == NULL)
  165                 return ENOMEM;
  166         error = copyin(ireq->i_data, wpaie->wpa_macaddr, IEEE80211_ADDR_LEN);
  167         if (error != 0)
  168                 goto bad;
  169         ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap, wpaie->wpa_macaddr);
  170         if (ni == NULL) {
  171                 error = ENOENT;
  172                 goto bad;
  173         }
  174         if (ni->ni_ies.wpa_ie != NULL) {
  175                 int ielen = ni->ni_ies.wpa_ie[1] + 2;
  176                 if (ielen > sizeof(wpaie->wpa_ie))
  177                         ielen = sizeof(wpaie->wpa_ie);
  178                 memcpy(wpaie->wpa_ie, ni->ni_ies.wpa_ie, ielen);
  179         }
  180         if (req == IEEE80211_IOC_WPAIE2) {
  181                 if (ni->ni_ies.rsn_ie != NULL) {
  182                         int ielen = ni->ni_ies.rsn_ie[1] + 2;
  183                         if (ielen > sizeof(wpaie->rsn_ie))
  184                                 ielen = sizeof(wpaie->rsn_ie);
  185                         memcpy(wpaie->rsn_ie, ni->ni_ies.rsn_ie, ielen);
  186                 }
  187                 if (ireq->i_len > sizeof(struct ieee80211req_wpaie2))
  188                         ireq->i_len = sizeof(struct ieee80211req_wpaie2);
  189         } else {
  190                 /* compatibility op, may overwrite wpa ie */
  191                 /* XXX check ic_flags? */
  192                 if (ni->ni_ies.rsn_ie != NULL) {
  193                         int ielen = ni->ni_ies.rsn_ie[1] + 2;
  194                         if (ielen > sizeof(wpaie->wpa_ie))
  195                                 ielen = sizeof(wpaie->wpa_ie);
  196                         memcpy(wpaie->wpa_ie, ni->ni_ies.rsn_ie, ielen);
  197                 }
  198                 if (ireq->i_len > sizeof(struct ieee80211req_wpaie))
  199                         ireq->i_len = sizeof(struct ieee80211req_wpaie);
  200         }
  201         ieee80211_free_node(ni);
  202         error = copyout(wpaie, ireq->i_data, ireq->i_len);
  203 bad:
  204         IEEE80211_FREE(wpaie, M_TEMP);
  205         return error;
  206 }
  207 
  208 static int
  209 ieee80211_ioctl_getstastats(struct ieee80211vap *vap, struct ieee80211req *ireq)
  210 {
  211         struct ieee80211_node *ni;
  212         uint8_t macaddr[IEEE80211_ADDR_LEN];
  213         const size_t off = __offsetof(struct ieee80211req_sta_stats, is_stats);
  214         int error;
  215 
  216         if (ireq->i_len < off)
  217                 return EINVAL;
  218         error = copyin(ireq->i_data, macaddr, IEEE80211_ADDR_LEN);
  219         if (error != 0)
  220                 return error;
  221         ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap, macaddr);
  222         if (ni == NULL)
  223                 return ENOENT;
  224         if (ireq->i_len > sizeof(struct ieee80211req_sta_stats))
  225                 ireq->i_len = sizeof(struct ieee80211req_sta_stats);
  226         /* NB: copy out only the statistics */
  227         error = copyout(&ni->ni_stats, (uint8_t *) ireq->i_data + off,
  228                         ireq->i_len - off);
  229         ieee80211_free_node(ni);
  230         return error;
  231 }
  232 
  233 struct scanreq {
  234         struct ieee80211req_scan_result *sr;
  235         size_t space;
  236 };
  237 
  238 static size_t
  239 scan_space(const struct ieee80211_scan_entry *se, int *ielen)
  240 {
  241         size_t len;
  242 
  243         *ielen = se->se_ies.len;
  244         /*
  245          * NB: ie's can be no more than 255 bytes and the max 802.11
  246          * packet is <3Kbytes so we are sure this doesn't overflow
  247          * 16-bits; if this is a concern we can drop the ie's.
  248          */
  249         len = sizeof(struct ieee80211req_scan_result) + se->se_ssid[1] +
  250             se->se_meshid[1] + *ielen;
  251         return roundup(len, sizeof(uint32_t));
  252 }
  253 
  254 static void
  255 get_scan_space(void *arg, const struct ieee80211_scan_entry *se)
  256 {
  257         struct scanreq *req = arg;
  258         int ielen;
  259 
  260         req->space += scan_space(se, &ielen);
  261 }
  262 
  263 static void
  264 get_scan_result(void *arg, const struct ieee80211_scan_entry *se)
  265 {
  266         struct scanreq *req = arg;
  267         struct ieee80211req_scan_result *sr;
  268         int ielen, len, nr, nxr;
  269         uint8_t *cp;
  270 
  271         len = scan_space(se, &ielen);
  272         if (len > req->space)
  273                 return;
  274 
  275         sr = req->sr;
  276         KASSERT(len <= 65535 && ielen <= 65535,
  277             ("len %u ssid %u ie %u", len, se->se_ssid[1], ielen));
  278         sr->isr_len = len;
  279         sr->isr_ie_off = sizeof(struct ieee80211req_scan_result);
  280         sr->isr_ie_len = ielen;
  281         sr->isr_freq = se->se_chan->ic_freq;
  282         sr->isr_flags = se->se_chan->ic_flags;
  283         sr->isr_rssi = se->se_rssi;
  284         sr->isr_noise = se->se_noise;
  285         sr->isr_intval = se->se_intval;
  286         sr->isr_capinfo = se->se_capinfo;
  287         sr->isr_erp = se->se_erp;
  288         IEEE80211_ADDR_COPY(sr->isr_bssid, se->se_bssid);
  289         nr = min(se->se_rates[1], IEEE80211_RATE_MAXSIZE);
  290         memcpy(sr->isr_rates, se->se_rates+2, nr);
  291         nxr = min(se->se_xrates[1], IEEE80211_RATE_MAXSIZE - nr);
  292         memcpy(sr->isr_rates+nr, se->se_xrates+2, nxr);
  293         sr->isr_nrates = nr + nxr;
  294 
  295         /* copy SSID */
  296         sr->isr_ssid_len = se->se_ssid[1];
  297         cp = ((uint8_t *)sr) + sr->isr_ie_off;
  298         memcpy(cp, se->se_ssid+2, sr->isr_ssid_len);
  299 
  300         /* copy mesh id */
  301         cp += sr->isr_ssid_len;
  302         sr->isr_meshid_len = se->se_meshid[1];
  303         memcpy(cp, se->se_meshid+2, sr->isr_meshid_len);
  304         cp += sr->isr_meshid_len;
  305 
  306         if (ielen)
  307                 memcpy(cp, se->se_ies.data, ielen);
  308 
  309         req->space -= len;
  310         req->sr = (struct ieee80211req_scan_result *)(((uint8_t *)sr) + len);
  311 }
  312 
  313 static int
  314 ieee80211_ioctl_getscanresults(struct ieee80211vap *vap,
  315         struct ieee80211req *ireq)
  316 {
  317         struct scanreq req;
  318         int error;
  319 
  320         if (ireq->i_len < sizeof(struct scanreq))
  321                 return EFAULT;
  322 
  323         error = 0;
  324         req.space = 0;
  325         ieee80211_scan_iterate(vap, get_scan_space, &req);
  326         if (req.space > ireq->i_len)
  327                 req.space = ireq->i_len;
  328         if (req.space > 0) {
  329                 uint32_t space;
  330                 void *p;
  331 
  332                 space = req.space;
  333                 /* XXX M_WAITOK after driver lock released */
  334                 p = IEEE80211_MALLOC(space, M_TEMP,
  335                     IEEE80211_M_NOWAIT | IEEE80211_M_ZERO);
  336                 if (p == NULL)
  337                         return ENOMEM;
  338                 req.sr = p;
  339                 ieee80211_scan_iterate(vap, get_scan_result, &req);
  340                 ireq->i_len = space - req.space;
  341                 error = copyout(p, ireq->i_data, ireq->i_len);
  342                 IEEE80211_FREE(p, M_TEMP);
  343         } else
  344                 ireq->i_len = 0;
  345 
  346         return error;
  347 }
  348 
  349 struct stainforeq {
  350         struct ieee80211vap *vap;
  351         struct ieee80211req_sta_info *si;
  352         size_t  space;
  353 };
  354 
  355 static size_t
  356 sta_space(const struct ieee80211_node *ni, size_t *ielen)
  357 {
  358         *ielen = ni->ni_ies.len;
  359         return roundup(sizeof(struct ieee80211req_sta_info) + *ielen,
  360                       sizeof(uint32_t));
  361 }
  362 
  363 static void
  364 get_sta_space(void *arg, struct ieee80211_node *ni)
  365 {
  366         struct stainforeq *req = arg;
  367         size_t ielen;
  368 
  369         if (req->vap != ni->ni_vap)
  370                 return;
  371         if (ni->ni_vap->iv_opmode == IEEE80211_M_HOSTAP &&
  372             ni->ni_associd == 0)        /* only associated stations */
  373                 return;
  374         req->space += sta_space(ni, &ielen);
  375 }
  376 
  377 static void
  378 get_sta_info(void *arg, struct ieee80211_node *ni)
  379 {
  380         struct stainforeq *req = arg;
  381         struct ieee80211vap *vap = ni->ni_vap;
  382         struct ieee80211req_sta_info *si;
  383         size_t ielen, len;
  384         uint8_t *cp;
  385 
  386         if (req->vap != ni->ni_vap)
  387                 return;
  388         if (vap->iv_opmode == IEEE80211_M_HOSTAP &&
  389             ni->ni_associd == 0)        /* only associated stations */
  390                 return;
  391         if (ni->ni_chan == IEEE80211_CHAN_ANYC) /* XXX bogus entry */
  392                 return;
  393         len = sta_space(ni, &ielen);
  394         if (len > req->space)
  395                 return;
  396         si = req->si;
  397         si->isi_len = len;
  398         si->isi_ie_off = sizeof(struct ieee80211req_sta_info);
  399         si->isi_ie_len = ielen;
  400         si->isi_freq = ni->ni_chan->ic_freq;
  401         si->isi_flags = ni->ni_chan->ic_flags;
  402         si->isi_state = ni->ni_flags;
  403         si->isi_authmode = ni->ni_authmode;
  404         vap->iv_ic->ic_node_getsignal(ni, &si->isi_rssi, &si->isi_noise);
  405         vap->iv_ic->ic_node_getmimoinfo(ni, &si->isi_mimo);
  406         si->isi_capinfo = ni->ni_capinfo;
  407         si->isi_erp = ni->ni_erp;
  408         IEEE80211_ADDR_COPY(si->isi_macaddr, ni->ni_macaddr);
  409         si->isi_nrates = ni->ni_rates.rs_nrates;
  410         if (si->isi_nrates > 15)
  411                 si->isi_nrates = 15;
  412         memcpy(si->isi_rates, ni->ni_rates.rs_rates, si->isi_nrates);
  413         si->isi_txrate = ni->ni_txrate;
  414         if (si->isi_txrate & IEEE80211_RATE_MCS) {
  415                 const struct ieee80211_mcs_rates *mcs =
  416                     &ieee80211_htrates[ni->ni_txrate &~ IEEE80211_RATE_MCS];
  417                 if (IEEE80211_IS_CHAN_HT40(ni->ni_chan)) {
  418                         if (ni->ni_flags & IEEE80211_NODE_SGI40)
  419                                 si->isi_txmbps = mcs->ht40_rate_800ns;
  420                         else
  421                                 si->isi_txmbps = mcs->ht40_rate_400ns;
  422                 } else {
  423                         if (ni->ni_flags & IEEE80211_NODE_SGI20)
  424                                 si->isi_txmbps = mcs->ht20_rate_800ns;
  425                         else
  426                                 si->isi_txmbps = mcs->ht20_rate_400ns;
  427                 }
  428         } else
  429                 si->isi_txmbps = si->isi_txrate;
  430         si->isi_associd = ni->ni_associd;
  431         si->isi_txpower = ni->ni_txpower;
  432         si->isi_vlan = ni->ni_vlan;
  433         if (ni->ni_flags & IEEE80211_NODE_QOS) {
  434                 memcpy(si->isi_txseqs, ni->ni_txseqs, sizeof(ni->ni_txseqs));
  435                 memcpy(si->isi_rxseqs, ni->ni_rxseqs, sizeof(ni->ni_rxseqs));
  436         } else {
  437                 si->isi_txseqs[0] = ni->ni_txseqs[IEEE80211_NONQOS_TID];
  438                 si->isi_rxseqs[0] = ni->ni_rxseqs[IEEE80211_NONQOS_TID];
  439         }
  440         /* NB: leave all cases in case we relax ni_associd == 0 check */
  441         if (ieee80211_node_is_authorized(ni))
  442                 si->isi_inact = vap->iv_inact_run;
  443         else if (ni->ni_associd != 0 ||
  444             (vap->iv_opmode == IEEE80211_M_WDS &&
  445              (vap->iv_flags_ext & IEEE80211_FEXT_WDSLEGACY)))
  446                 si->isi_inact = vap->iv_inact_auth;
  447         else
  448                 si->isi_inact = vap->iv_inact_init;
  449         si->isi_inact = (si->isi_inact - ni->ni_inact) * IEEE80211_INACT_WAIT;
  450         si->isi_localid = ni->ni_mllid;
  451         si->isi_peerid = ni->ni_mlpid;
  452         si->isi_peerstate = ni->ni_mlstate;
  453 
  454         if (ielen) {
  455                 cp = ((uint8_t *)si) + si->isi_ie_off;
  456                 memcpy(cp, ni->ni_ies.data, ielen);
  457         }
  458 
  459         req->si = (struct ieee80211req_sta_info *)(((uint8_t *)si) + len);
  460         req->space -= len;
  461 }
  462 
  463 static int
  464 getstainfo_common(struct ieee80211vap *vap, struct ieee80211req *ireq,
  465         struct ieee80211_node *ni, size_t off)
  466 {
  467         struct ieee80211com *ic = vap->iv_ic;
  468         struct stainforeq req;
  469         size_t space;
  470         void *p;
  471         int error;
  472 
  473         error = 0;
  474         req.space = 0;
  475         req.vap = vap;
  476         if (ni == NULL)
  477                 ieee80211_iterate_nodes(&ic->ic_sta, get_sta_space, &req);
  478         else
  479                 get_sta_space(&req, ni);
  480         if (req.space > ireq->i_len)
  481                 req.space = ireq->i_len;
  482         if (req.space > 0) {
  483                 space = req.space;
  484                 /* XXX M_WAITOK after driver lock released */
  485                 p = IEEE80211_MALLOC(space, M_TEMP,
  486                     IEEE80211_M_NOWAIT | IEEE80211_M_ZERO);
  487                 if (p == NULL) {
  488                         error = ENOMEM;
  489                         goto bad;
  490                 }
  491                 req.si = p;
  492                 if (ni == NULL)
  493                         ieee80211_iterate_nodes(&ic->ic_sta, get_sta_info, &req);
  494                 else
  495                         get_sta_info(&req, ni);
  496                 ireq->i_len = space - req.space;
  497                 error = copyout(p, (uint8_t *) ireq->i_data+off, ireq->i_len);
  498                 IEEE80211_FREE(p, M_TEMP);
  499         } else
  500                 ireq->i_len = 0;
  501 bad:
  502         if (ni != NULL)
  503                 ieee80211_free_node(ni);
  504         return error;
  505 }
  506 
  507 static int
  508 ieee80211_ioctl_getstainfo(struct ieee80211vap *vap, struct ieee80211req *ireq)
  509 {
  510         uint8_t macaddr[IEEE80211_ADDR_LEN];
  511         const size_t off = __offsetof(struct ieee80211req_sta_req, info);
  512         struct ieee80211_node *ni;
  513         int error;
  514 
  515         if (ireq->i_len < sizeof(struct ieee80211req_sta_req))
  516                 return EFAULT;
  517         error = copyin(ireq->i_data, macaddr, IEEE80211_ADDR_LEN);
  518         if (error != 0)
  519                 return error;
  520         if (IEEE80211_ADDR_EQ(macaddr, vap->iv_ifp->if_broadcastaddr)) {
  521                 ni = NULL;
  522         } else {
  523                 ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap, macaddr);
  524                 if (ni == NULL)
  525                         return ENOENT;
  526         }
  527         return getstainfo_common(vap, ireq, ni, off);
  528 }
  529 
  530 static int
  531 ieee80211_ioctl_getstatxpow(struct ieee80211vap *vap, struct ieee80211req *ireq)
  532 {
  533         struct ieee80211_node *ni;
  534         struct ieee80211req_sta_txpow txpow;
  535         int error;
  536 
  537         if (ireq->i_len != sizeof(txpow))
  538                 return EINVAL;
  539         error = copyin(ireq->i_data, &txpow, sizeof(txpow));
  540         if (error != 0)
  541                 return error;
  542         ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap, txpow.it_macaddr);
  543         if (ni == NULL)
  544                 return ENOENT;
  545         txpow.it_txpow = ni->ni_txpower;
  546         error = copyout(&txpow, ireq->i_data, sizeof(txpow));
  547         ieee80211_free_node(ni);
  548         return error;
  549 }
  550 
  551 static int
  552 ieee80211_ioctl_getwmeparam(struct ieee80211vap *vap, struct ieee80211req *ireq)
  553 {
  554         struct ieee80211com *ic = vap->iv_ic;
  555         struct ieee80211_wme_state *wme = &ic->ic_wme;
  556         struct wmeParams *wmep;
  557         int ac;
  558 
  559         if ((ic->ic_caps & IEEE80211_C_WME) == 0)
  560                 return EINVAL;
  561 
  562         ac = (ireq->i_len & IEEE80211_WMEPARAM_VAL);
  563         if (ac >= WME_NUM_AC)
  564                 ac = WME_AC_BE;
  565         if (ireq->i_len & IEEE80211_WMEPARAM_BSS)
  566                 wmep = &wme->wme_wmeBssChanParams.cap_wmeParams[ac];
  567         else
  568                 wmep = &wme->wme_wmeChanParams.cap_wmeParams[ac];
  569         switch (ireq->i_type) {
  570         case IEEE80211_IOC_WME_CWMIN:           /* WME: CWmin */
  571                 ireq->i_val = wmep->wmep_logcwmin;
  572                 break;
  573         case IEEE80211_IOC_WME_CWMAX:           /* WME: CWmax */
  574                 ireq->i_val = wmep->wmep_logcwmax;
  575                 break;
  576         case IEEE80211_IOC_WME_AIFS:            /* WME: AIFS */
  577                 ireq->i_val = wmep->wmep_aifsn;
  578                 break;
  579         case IEEE80211_IOC_WME_TXOPLIMIT:       /* WME: txops limit */
  580                 ireq->i_val = wmep->wmep_txopLimit;
  581                 break;
  582         case IEEE80211_IOC_WME_ACM:             /* WME: ACM (bss only) */
  583                 wmep = &wme->wme_wmeBssChanParams.cap_wmeParams[ac];
  584                 ireq->i_val = wmep->wmep_acm;
  585                 break;
  586         case IEEE80211_IOC_WME_ACKPOLICY:       /* WME: ACK policy (!bss only)*/
  587                 wmep = &wme->wme_wmeChanParams.cap_wmeParams[ac];
  588                 ireq->i_val = !wmep->wmep_noackPolicy;
  589                 break;
  590         }
  591         return 0;
  592 }
  593 
  594 static int
  595 ieee80211_ioctl_getmaccmd(struct ieee80211vap *vap, struct ieee80211req *ireq)
  596 {
  597         const struct ieee80211_aclator *acl = vap->iv_acl;
  598 
  599         return (acl == NULL ? EINVAL : acl->iac_getioctl(vap, ireq));
  600 }
  601 
  602 static int
  603 ieee80211_ioctl_getcurchan(struct ieee80211vap *vap, struct ieee80211req *ireq)
  604 {
  605         struct ieee80211com *ic = vap->iv_ic;
  606         struct ieee80211_channel *c;
  607 
  608         if (ireq->i_len != sizeof(struct ieee80211_channel))
  609                 return EINVAL;
  610         /*
  611          * vap's may have different operating channels when HT is
  612          * in use.  When in RUN state report the vap-specific channel.
  613          * Otherwise return curchan.
  614          */
  615         if (vap->iv_state == IEEE80211_S_RUN || vap->iv_state == IEEE80211_S_SLEEP)
  616                 c = vap->iv_bss->ni_chan;
  617         else
  618                 c = ic->ic_curchan;
  619         return copyout(c, ireq->i_data, sizeof(*c));
  620 }
  621 
  622 static int
  623 getappie(const struct ieee80211_appie *aie, struct ieee80211req *ireq)
  624 {
  625         if (aie == NULL)
  626                 return EINVAL;
  627         /* NB: truncate, caller can check length */
  628         if (ireq->i_len > aie->ie_len)
  629                 ireq->i_len = aie->ie_len;
  630         return copyout(aie->ie_data, ireq->i_data, ireq->i_len);
  631 }
  632 
  633 static int
  634 ieee80211_ioctl_getappie(struct ieee80211vap *vap, struct ieee80211req *ireq)
  635 {
  636         uint8_t fc0;
  637 
  638         fc0 = ireq->i_val & 0xff;
  639         if ((fc0 & IEEE80211_FC0_TYPE_MASK) != IEEE80211_FC0_TYPE_MGT)
  640                 return EINVAL;
  641         /* NB: could check iv_opmode and reject but hardly worth the effort */
  642         switch (fc0 & IEEE80211_FC0_SUBTYPE_MASK) {
  643         case IEEE80211_FC0_SUBTYPE_BEACON:
  644                 return getappie(vap->iv_appie_beacon, ireq);
  645         case IEEE80211_FC0_SUBTYPE_PROBE_RESP:
  646                 return getappie(vap->iv_appie_proberesp, ireq);
  647         case IEEE80211_FC0_SUBTYPE_ASSOC_RESP:
  648                 return getappie(vap->iv_appie_assocresp, ireq);
  649         case IEEE80211_FC0_SUBTYPE_PROBE_REQ:
  650                 return getappie(vap->iv_appie_probereq, ireq);
  651         case IEEE80211_FC0_SUBTYPE_ASSOC_REQ:
  652                 return getappie(vap->iv_appie_assocreq, ireq);
  653         case IEEE80211_FC0_SUBTYPE_BEACON|IEEE80211_FC0_SUBTYPE_PROBE_RESP:
  654                 return getappie(vap->iv_appie_wpa, ireq);
  655         }
  656         return EINVAL;
  657 }
  658 
  659 static int
  660 ieee80211_ioctl_getregdomain(struct ieee80211vap *vap,
  661         const struct ieee80211req *ireq)
  662 {
  663         struct ieee80211com *ic = vap->iv_ic;
  664 
  665         if (ireq->i_len != sizeof(ic->ic_regdomain))
  666                 return EINVAL;
  667         return copyout(&ic->ic_regdomain, ireq->i_data,
  668             sizeof(ic->ic_regdomain));
  669 }
  670 
  671 static int
  672 ieee80211_ioctl_getroam(struct ieee80211vap *vap,
  673         const struct ieee80211req *ireq)
  674 {
  675         size_t len = ireq->i_len;
  676         /* NB: accept short requests for backwards compat */
  677         if (len > sizeof(vap->iv_roamparms))
  678                 len = sizeof(vap->iv_roamparms);
  679         return copyout(vap->iv_roamparms, ireq->i_data, len);
  680 }
  681 
  682 static int
  683 ieee80211_ioctl_gettxparams(struct ieee80211vap *vap,
  684         const struct ieee80211req *ireq)
  685 {
  686         size_t len = ireq->i_len;
  687         /* NB: accept short requests for backwards compat */
  688         if (len > sizeof(vap->iv_txparms))
  689                 len = sizeof(vap->iv_txparms);
  690         return copyout(vap->iv_txparms, ireq->i_data, len);
  691 }
  692 
  693 static int
  694 ieee80211_ioctl_getdevcaps(struct ieee80211com *ic,
  695         const struct ieee80211req *ireq)
  696 {
  697         struct ieee80211_devcaps_req *dc;
  698         struct ieee80211req_chaninfo *ci;
  699         int maxchans, error;
  700 
  701         maxchans = 1 + ((ireq->i_len - sizeof(struct ieee80211_devcaps_req)) /
  702             sizeof(struct ieee80211_channel));
  703         /* NB: require 1 so we know ic_nchans is accessible */
  704         if (maxchans < 1)
  705                 return EINVAL;
  706         /* constrain max request size, 2K channels is ~24Kbytes */
  707         if (maxchans > 2048)
  708                 maxchans = 2048;
  709         dc = (struct ieee80211_devcaps_req *)
  710             IEEE80211_MALLOC(IEEE80211_DEVCAPS_SIZE(maxchans), M_TEMP,
  711             IEEE80211_M_NOWAIT | IEEE80211_M_ZERO);
  712         if (dc == NULL)
  713                 return ENOMEM;
  714         dc->dc_drivercaps = ic->ic_caps;
  715         dc->dc_cryptocaps = ic->ic_cryptocaps;
  716         dc->dc_htcaps = ic->ic_htcaps;
  717         ci = &dc->dc_chaninfo;
  718         ic->ic_getradiocaps(ic, maxchans, &ci->ic_nchans, ci->ic_chans);
  719         KASSERT(ci->ic_nchans <= maxchans,
  720             ("nchans %d maxchans %d", ci->ic_nchans, maxchans));
  721         ieee80211_sort_channels(ci->ic_chans, ci->ic_nchans);
  722         error = copyout(dc, ireq->i_data, IEEE80211_DEVCAPS_SPACE(dc));
  723         IEEE80211_FREE(dc, M_TEMP);
  724         return error;
  725 }
  726 
  727 static int
  728 ieee80211_ioctl_getstavlan(struct ieee80211vap *vap, struct ieee80211req *ireq)
  729 {
  730         struct ieee80211_node *ni;
  731         struct ieee80211req_sta_vlan vlan;
  732         int error;
  733 
  734         if (ireq->i_len != sizeof(vlan))
  735                 return EINVAL;
  736         error = copyin(ireq->i_data, &vlan, sizeof(vlan));
  737         if (error != 0)
  738                 return error;
  739         if (!IEEE80211_ADDR_EQ(vlan.sv_macaddr, zerobssid)) {
  740                 ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap,
  741                     vlan.sv_macaddr);
  742                 if (ni == NULL)
  743                         return ENOENT;
  744         } else
  745                 ni = ieee80211_ref_node(vap->iv_bss);
  746         vlan.sv_vlan = ni->ni_vlan;
  747         error = copyout(&vlan, ireq->i_data, sizeof(vlan));
  748         ieee80211_free_node(ni);
  749         return error;
  750 }
  751 
  752 /*
  753  * Dummy ioctl get handler so the linker set is defined.
  754  */
  755 static int
  756 dummy_ioctl_get(struct ieee80211vap *vap, struct ieee80211req *ireq)
  757 {
  758         return ENOSYS;
  759 }
  760 IEEE80211_IOCTL_GET(dummy, dummy_ioctl_get);
  761 
  762 static int
  763 ieee80211_ioctl_getdefault(struct ieee80211vap *vap, struct ieee80211req *ireq)
  764 {
  765         ieee80211_ioctl_getfunc * const *get;
  766         int error;
  767 
  768         SET_FOREACH(get, ieee80211_ioctl_getset) {
  769                 error = (*get)(vap, ireq);
  770                 if (error != ENOSYS)
  771                         return error;
  772         }
  773         return EINVAL;
  774 }
  775 
  776 static int
  777 ieee80211_ioctl_get80211(struct ieee80211vap *vap, u_long cmd,
  778     struct ieee80211req *ireq)
  779 {
  780 #define MS(_v, _f)      (((_v) & _f) >> _f##_S)
  781         struct ieee80211com *ic = vap->iv_ic;
  782         u_int kid, len;
  783         uint8_t tmpkey[IEEE80211_KEYBUF_SIZE];
  784         char tmpssid[IEEE80211_NWID_LEN];
  785         int error = 0;
  786 
  787         switch (ireq->i_type) {
  788         case IEEE80211_IOC_SSID:
  789                 switch (vap->iv_state) {
  790                 case IEEE80211_S_INIT:
  791                 case IEEE80211_S_SCAN:
  792                         ireq->i_len = vap->iv_des_ssid[0].len;
  793                         memcpy(tmpssid, vap->iv_des_ssid[0].ssid, ireq->i_len);
  794                         break;
  795                 default:
  796                         ireq->i_len = vap->iv_bss->ni_esslen;
  797                         memcpy(tmpssid, vap->iv_bss->ni_essid, ireq->i_len);
  798                         break;
  799                 }
  800                 error = copyout(tmpssid, ireq->i_data, ireq->i_len);
  801                 break;
  802         case IEEE80211_IOC_NUMSSIDS:
  803                 ireq->i_val = 1;
  804                 break;
  805         case IEEE80211_IOC_WEP:
  806                 if ((vap->iv_flags & IEEE80211_F_PRIVACY) == 0)
  807                         ireq->i_val = IEEE80211_WEP_OFF;
  808                 else if (vap->iv_flags & IEEE80211_F_DROPUNENC)
  809                         ireq->i_val = IEEE80211_WEP_ON;
  810                 else
  811                         ireq->i_val = IEEE80211_WEP_MIXED;
  812                 break;
  813         case IEEE80211_IOC_WEPKEY:
  814                 kid = (u_int) ireq->i_val;
  815                 if (kid >= IEEE80211_WEP_NKID)
  816                         return EINVAL;
  817                 len = (u_int) vap->iv_nw_keys[kid].wk_keylen;
  818                 /* NB: only root can read WEP keys */
  819                 if (priv_check(curthread, PRIV_NET80211_GETKEY) == 0) {
  820                         bcopy(vap->iv_nw_keys[kid].wk_key, tmpkey, len);
  821                 } else {
  822                         bzero(tmpkey, len);
  823                 }
  824                 ireq->i_len = len;
  825                 error = copyout(tmpkey, ireq->i_data, len);
  826                 break;
  827         case IEEE80211_IOC_NUMWEPKEYS:
  828                 ireq->i_val = IEEE80211_WEP_NKID;
  829                 break;
  830         case IEEE80211_IOC_WEPTXKEY:
  831                 ireq->i_val = vap->iv_def_txkey;
  832                 break;
  833         case IEEE80211_IOC_AUTHMODE:
  834                 if (vap->iv_flags & IEEE80211_F_WPA)
  835                         ireq->i_val = IEEE80211_AUTH_WPA;
  836                 else
  837                         ireq->i_val = vap->iv_bss->ni_authmode;
  838                 break;
  839         case IEEE80211_IOC_CHANNEL:
  840                 ireq->i_val = ieee80211_chan2ieee(ic, ic->ic_curchan);
  841                 break;
  842         case IEEE80211_IOC_POWERSAVE:
  843                 if (vap->iv_flags & IEEE80211_F_PMGTON)
  844                         ireq->i_val = IEEE80211_POWERSAVE_ON;
  845                 else
  846                         ireq->i_val = IEEE80211_POWERSAVE_OFF;
  847                 break;
  848         case IEEE80211_IOC_POWERSAVESLEEP:
  849                 ireq->i_val = ic->ic_lintval;
  850                 break;
  851         case IEEE80211_IOC_RTSTHRESHOLD:
  852                 ireq->i_val = vap->iv_rtsthreshold;
  853                 break;
  854         case IEEE80211_IOC_PROTMODE:
  855                 ireq->i_val = ic->ic_protmode;
  856                 break;
  857         case IEEE80211_IOC_TXPOWER:
  858                 /*
  859                  * Tx power limit is the min of max regulatory
  860                  * power, any user-set limit, and the max the
  861                  * radio can do.
  862                  */
  863                 ireq->i_val = 2*ic->ic_curchan->ic_maxregpower;
  864                 if (ireq->i_val > ic->ic_txpowlimit)
  865                         ireq->i_val = ic->ic_txpowlimit;
  866                 if (ireq->i_val > ic->ic_curchan->ic_maxpower)
  867                         ireq->i_val = ic->ic_curchan->ic_maxpower;
  868                 break;
  869         case IEEE80211_IOC_WPA:
  870                 switch (vap->iv_flags & IEEE80211_F_WPA) {
  871                 case IEEE80211_F_WPA1:
  872                         ireq->i_val = 1;
  873                         break;
  874                 case IEEE80211_F_WPA2:
  875                         ireq->i_val = 2;
  876                         break;
  877                 case IEEE80211_F_WPA1 | IEEE80211_F_WPA2:
  878                         ireq->i_val = 3;
  879                         break;
  880                 default:
  881                         ireq->i_val = 0;
  882                         break;
  883                 }
  884                 break;
  885         case IEEE80211_IOC_CHANLIST:
  886                 error = ieee80211_ioctl_getchanlist(vap, ireq);
  887                 break;
  888         case IEEE80211_IOC_ROAMING:
  889                 ireq->i_val = vap->iv_roaming;
  890                 break;
  891         case IEEE80211_IOC_PRIVACY:
  892                 ireq->i_val = (vap->iv_flags & IEEE80211_F_PRIVACY) != 0;
  893                 break;
  894         case IEEE80211_IOC_DROPUNENCRYPTED:
  895                 ireq->i_val = (vap->iv_flags & IEEE80211_F_DROPUNENC) != 0;
  896                 break;
  897         case IEEE80211_IOC_COUNTERMEASURES:
  898                 ireq->i_val = (vap->iv_flags & IEEE80211_F_COUNTERM) != 0;
  899                 break;
  900         case IEEE80211_IOC_WME:
  901                 ireq->i_val = (vap->iv_flags & IEEE80211_F_WME) != 0;
  902                 break;
  903         case IEEE80211_IOC_HIDESSID:
  904                 ireq->i_val = (vap->iv_flags & IEEE80211_F_HIDESSID) != 0;
  905                 break;
  906         case IEEE80211_IOC_APBRIDGE:
  907                 ireq->i_val = (vap->iv_flags & IEEE80211_F_NOBRIDGE) == 0;
  908                 break;
  909         case IEEE80211_IOC_WPAKEY:
  910                 error = ieee80211_ioctl_getkey(vap, ireq);
  911                 break;
  912         case IEEE80211_IOC_CHANINFO:
  913                 error = ieee80211_ioctl_getchaninfo(vap, ireq);
  914                 break;
  915         case IEEE80211_IOC_BSSID:
  916                 if (ireq->i_len != IEEE80211_ADDR_LEN)
  917                         return EINVAL;
  918                 if (vap->iv_state == IEEE80211_S_RUN || vap->iv_state == IEEE80211_S_SLEEP) {
  919                         error = copyout(vap->iv_opmode == IEEE80211_M_WDS ?
  920                             vap->iv_bss->ni_macaddr : vap->iv_bss->ni_bssid,
  921                             ireq->i_data, ireq->i_len);
  922                 } else
  923                         error = copyout(vap->iv_des_bssid, ireq->i_data,
  924                             ireq->i_len);
  925                 break;
  926         case IEEE80211_IOC_WPAIE:
  927         case IEEE80211_IOC_WPAIE2:
  928                 error = ieee80211_ioctl_getwpaie(vap, ireq, ireq->i_type);
  929                 break;
  930         case IEEE80211_IOC_SCAN_RESULTS:
  931                 error = ieee80211_ioctl_getscanresults(vap, ireq);
  932                 break;
  933         case IEEE80211_IOC_STA_STATS:
  934                 error = ieee80211_ioctl_getstastats(vap, ireq);
  935                 break;
  936         case IEEE80211_IOC_TXPOWMAX:
  937                 ireq->i_val = vap->iv_bss->ni_txpower;
  938                 break;
  939         case IEEE80211_IOC_STA_TXPOW:
  940                 error = ieee80211_ioctl_getstatxpow(vap, ireq);
  941                 break;
  942         case IEEE80211_IOC_STA_INFO:
  943                 error = ieee80211_ioctl_getstainfo(vap, ireq);
  944                 break;
  945         case IEEE80211_IOC_WME_CWMIN:           /* WME: CWmin */
  946         case IEEE80211_IOC_WME_CWMAX:           /* WME: CWmax */
  947         case IEEE80211_IOC_WME_AIFS:            /* WME: AIFS */
  948         case IEEE80211_IOC_WME_TXOPLIMIT:       /* WME: txops limit */
  949         case IEEE80211_IOC_WME_ACM:             /* WME: ACM (bss only) */
  950         case IEEE80211_IOC_WME_ACKPOLICY:       /* WME: ACK policy (!bss only) */
  951                 error = ieee80211_ioctl_getwmeparam(vap, ireq);
  952                 break;
  953         case IEEE80211_IOC_DTIM_PERIOD:
  954                 ireq->i_val = vap->iv_dtim_period;
  955                 break;
  956         case IEEE80211_IOC_BEACON_INTERVAL:
  957                 /* NB: get from ic_bss for station mode */
  958                 ireq->i_val = vap->iv_bss->ni_intval;
  959                 break;
  960         case IEEE80211_IOC_PUREG:
  961                 ireq->i_val = (vap->iv_flags & IEEE80211_F_PUREG) != 0;
  962                 break;
  963         case IEEE80211_IOC_QUIET:
  964                 ireq->i_val = vap->iv_quiet;
  965                 break;
  966         case IEEE80211_IOC_QUIET_COUNT:
  967                 ireq->i_val = vap->iv_quiet_count;
  968                 break;
  969         case IEEE80211_IOC_QUIET_PERIOD:
  970                 ireq->i_val = vap->iv_quiet_period;
  971                 break;
  972         case IEEE80211_IOC_QUIET_DUR:
  973                 ireq->i_val = vap->iv_quiet_duration;
  974                 break;
  975         case IEEE80211_IOC_QUIET_OFFSET:
  976                 ireq->i_val = vap->iv_quiet_offset;
  977                 break;
  978         case IEEE80211_IOC_BGSCAN:
  979                 ireq->i_val = (vap->iv_flags & IEEE80211_F_BGSCAN) != 0;
  980                 break;
  981         case IEEE80211_IOC_BGSCAN_IDLE:
  982                 ireq->i_val = vap->iv_bgscanidle*hz/1000;       /* ms */
  983                 break;
  984         case IEEE80211_IOC_BGSCAN_INTERVAL:
  985                 ireq->i_val = vap->iv_bgscanintvl/hz;           /* seconds */
  986                 break;
  987         case IEEE80211_IOC_SCANVALID:
  988                 ireq->i_val = vap->iv_scanvalid/hz;             /* seconds */
  989                 break;
  990         case IEEE80211_IOC_FRAGTHRESHOLD:
  991                 ireq->i_val = vap->iv_fragthreshold;
  992                 break;
  993         case IEEE80211_IOC_MACCMD:
  994                 error = ieee80211_ioctl_getmaccmd(vap, ireq);
  995                 break;
  996         case IEEE80211_IOC_BURST:
  997                 ireq->i_val = (vap->iv_flags & IEEE80211_F_BURST) != 0;
  998                 break;
  999         case IEEE80211_IOC_BMISSTHRESHOLD:
 1000                 ireq->i_val = vap->iv_bmissthreshold;
 1001                 break;
 1002         case IEEE80211_IOC_CURCHAN:
 1003                 error = ieee80211_ioctl_getcurchan(vap, ireq);
 1004                 break;
 1005         case IEEE80211_IOC_SHORTGI:
 1006                 ireq->i_val = 0;
 1007                 if (vap->iv_flags_ht & IEEE80211_FHT_SHORTGI20)
 1008                         ireq->i_val |= IEEE80211_HTCAP_SHORTGI20;
 1009                 if (vap->iv_flags_ht & IEEE80211_FHT_SHORTGI40)
 1010                         ireq->i_val |= IEEE80211_HTCAP_SHORTGI40;
 1011                 break;
 1012         case IEEE80211_IOC_AMPDU:
 1013                 ireq->i_val = 0;
 1014                 if (vap->iv_flags_ht & IEEE80211_FHT_AMPDU_TX)
 1015                         ireq->i_val |= 1;
 1016                 if (vap->iv_flags_ht & IEEE80211_FHT_AMPDU_RX)
 1017                         ireq->i_val |= 2;
 1018                 break;
 1019         case IEEE80211_IOC_AMPDU_LIMIT:
 1020                 if (vap->iv_opmode == IEEE80211_M_HOSTAP)
 1021                         ireq->i_val = vap->iv_ampdu_rxmax;
 1022                 else if (vap->iv_state == IEEE80211_S_RUN || vap->iv_state == IEEE80211_S_SLEEP)
 1023                         /*
 1024                          * XXX TODO: this isn't completely correct, as we've
 1025                          * negotiated the higher of the two.
 1026                          */
 1027                         ireq->i_val = MS(vap->iv_bss->ni_htparam,
 1028                             IEEE80211_HTCAP_MAXRXAMPDU);
 1029                 else
 1030                         ireq->i_val = vap->iv_ampdu_limit;
 1031                 break;
 1032         case IEEE80211_IOC_AMPDU_DENSITY:
 1033                 if (vap->iv_opmode == IEEE80211_M_STA &&
 1034                     (vap->iv_state == IEEE80211_S_RUN || vap->iv_state == IEEE80211_S_SLEEP))
 1035                         /*
 1036                          * XXX TODO: this isn't completely correct, as we've
 1037                          * negotiated the higher of the two.
 1038                          */
 1039                         ireq->i_val = MS(vap->iv_bss->ni_htparam,
 1040                             IEEE80211_HTCAP_MPDUDENSITY);
 1041                 else
 1042                         ireq->i_val = vap->iv_ampdu_density;
 1043                 break;
 1044         case IEEE80211_IOC_AMSDU:
 1045                 ireq->i_val = 0;
 1046                 if (vap->iv_flags_ht & IEEE80211_FHT_AMSDU_TX)
 1047                         ireq->i_val |= 1;
 1048                 if (vap->iv_flags_ht & IEEE80211_FHT_AMSDU_RX)
 1049                         ireq->i_val |= 2;
 1050                 break;
 1051         case IEEE80211_IOC_AMSDU_LIMIT:
 1052                 ireq->i_val = vap->iv_amsdu_limit;      /* XXX truncation? */
 1053                 break;
 1054         case IEEE80211_IOC_PUREN:
 1055                 ireq->i_val = (vap->iv_flags_ht & IEEE80211_FHT_PUREN) != 0;
 1056                 break;
 1057         case IEEE80211_IOC_DOTH:
 1058                 ireq->i_val = (vap->iv_flags & IEEE80211_F_DOTH) != 0;
 1059                 break;
 1060         case IEEE80211_IOC_REGDOMAIN:
 1061                 error = ieee80211_ioctl_getregdomain(vap, ireq);
 1062                 break;
 1063         case IEEE80211_IOC_ROAM:
 1064                 error = ieee80211_ioctl_getroam(vap, ireq);
 1065                 break;
 1066         case IEEE80211_IOC_TXPARAMS:
 1067                 error = ieee80211_ioctl_gettxparams(vap, ireq);
 1068                 break;
 1069         case IEEE80211_IOC_HTCOMPAT:
 1070                 ireq->i_val = (vap->iv_flags_ht & IEEE80211_FHT_HTCOMPAT) != 0;
 1071                 break;
 1072         case IEEE80211_IOC_DWDS:
 1073                 ireq->i_val = (vap->iv_flags & IEEE80211_F_DWDS) != 0;
 1074                 break;
 1075         case IEEE80211_IOC_INACTIVITY:
 1076                 ireq->i_val = (vap->iv_flags_ext & IEEE80211_FEXT_INACT) != 0;
 1077                 break;
 1078         case IEEE80211_IOC_APPIE:
 1079                 error = ieee80211_ioctl_getappie(vap, ireq);
 1080                 break;
 1081         case IEEE80211_IOC_WPS:
 1082                 ireq->i_val = (vap->iv_flags_ext & IEEE80211_FEXT_WPS) != 0;
 1083                 break;
 1084         case IEEE80211_IOC_TSN:
 1085                 ireq->i_val = (vap->iv_flags_ext & IEEE80211_FEXT_TSN) != 0;
 1086                 break;
 1087         case IEEE80211_IOC_DFS:
 1088                 ireq->i_val = (vap->iv_flags_ext & IEEE80211_FEXT_DFS) != 0;
 1089                 break;
 1090         case IEEE80211_IOC_DOTD:
 1091                 ireq->i_val = (vap->iv_flags_ext & IEEE80211_FEXT_DOTD) != 0;
 1092                 break;
 1093         case IEEE80211_IOC_DEVCAPS:
 1094                 error = ieee80211_ioctl_getdevcaps(ic, ireq);
 1095                 break;
 1096         case IEEE80211_IOC_HTPROTMODE:
 1097                 ireq->i_val = ic->ic_htprotmode;
 1098                 break;
 1099         case IEEE80211_IOC_HTCONF:
 1100                 if (vap->iv_flags_ht & IEEE80211_FHT_HT) {
 1101                         ireq->i_val = 1;
 1102                         if (vap->iv_flags_ht & IEEE80211_FHT_USEHT40)
 1103                                 ireq->i_val |= 2;
 1104                 } else
 1105                         ireq->i_val = 0;
 1106                 break;
 1107         case IEEE80211_IOC_STA_VLAN:
 1108                 error = ieee80211_ioctl_getstavlan(vap, ireq);
 1109                 break;
 1110         case IEEE80211_IOC_SMPS:
 1111                 if (vap->iv_opmode == IEEE80211_M_STA &&
 1112                     (vap->iv_state == IEEE80211_S_RUN || vap->iv_state == IEEE80211_S_SLEEP)) {
 1113                         if (vap->iv_bss->ni_flags & IEEE80211_NODE_MIMO_RTS)
 1114                                 ireq->i_val = IEEE80211_HTCAP_SMPS_DYNAMIC;
 1115                         else if (vap->iv_bss->ni_flags & IEEE80211_NODE_MIMO_PS)
 1116                                 ireq->i_val = IEEE80211_HTCAP_SMPS_ENA;
 1117                         else
 1118                                 ireq->i_val = IEEE80211_HTCAP_SMPS_OFF;
 1119                 } else
 1120                         ireq->i_val = vap->iv_htcaps & IEEE80211_HTCAP_SMPS;
 1121                 break;
 1122         case IEEE80211_IOC_RIFS:
 1123                 if (vap->iv_opmode == IEEE80211_M_STA &&
 1124                     (vap->iv_state == IEEE80211_S_RUN || vap->iv_state == IEEE80211_S_SLEEP))
 1125                         ireq->i_val =
 1126                             (vap->iv_bss->ni_flags & IEEE80211_NODE_RIFS) != 0;
 1127                 else
 1128                         ireq->i_val =
 1129                             (vap->iv_flags_ht & IEEE80211_FHT_RIFS) != 0;
 1130                 break;
 1131         case IEEE80211_IOC_STBC:
 1132                 ireq->i_val = 0;
 1133                 if (vap->iv_flags_ht & IEEE80211_FHT_STBC_TX)
 1134                         ireq->i_val |= 1;
 1135                 if (vap->iv_flags_ht & IEEE80211_FHT_STBC_RX)
 1136                         ireq->i_val |= 2;
 1137                 break;
 1138         default:
 1139                 error = ieee80211_ioctl_getdefault(vap, ireq);
 1140                 break;
 1141         }
 1142         return error;
 1143 #undef MS
 1144 }
 1145 
 1146 static int
 1147 ieee80211_ioctl_setkey(struct ieee80211vap *vap, struct ieee80211req *ireq)
 1148 {
 1149         struct ieee80211req_key ik;
 1150         struct ieee80211_node *ni;
 1151         struct ieee80211_key *wk;
 1152         uint16_t kid;
 1153         int error, i;
 1154 
 1155         if (ireq->i_len != sizeof(ik))
 1156                 return EINVAL;
 1157         error = copyin(ireq->i_data, &ik, sizeof(ik));
 1158         if (error)
 1159                 return error;
 1160         /* NB: cipher support is verified by ieee80211_crypt_newkey */
 1161         /* NB: this also checks ik->ik_keylen > sizeof(wk->wk_key) */
 1162         if (ik.ik_keylen > sizeof(ik.ik_keydata))
 1163                 return E2BIG;
 1164         kid = ik.ik_keyix;
 1165         if (kid == IEEE80211_KEYIX_NONE) {
 1166                 /* XXX unicast keys currently must be tx/rx */
 1167                 if (ik.ik_flags != (IEEE80211_KEY_XMIT | IEEE80211_KEY_RECV))
 1168                         return EINVAL;
 1169                 if (vap->iv_opmode == IEEE80211_M_STA) {
 1170                         ni = ieee80211_ref_node(vap->iv_bss);
 1171                         if (!IEEE80211_ADDR_EQ(ik.ik_macaddr, ni->ni_bssid)) {
 1172                                 ieee80211_free_node(ni);
 1173                                 return EADDRNOTAVAIL;
 1174                         }
 1175                 } else {
 1176                         ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap,
 1177                                 ik.ik_macaddr);
 1178                         if (ni == NULL)
 1179                                 return ENOENT;
 1180                 }
 1181                 wk = &ni->ni_ucastkey;
 1182         } else {
 1183                 if (kid >= IEEE80211_WEP_NKID)
 1184                         return EINVAL;
 1185                 wk = &vap->iv_nw_keys[kid];
 1186                 /*
 1187                  * Global slots start off w/o any assigned key index.
 1188                  * Force one here for consistency with IEEE80211_IOC_WEPKEY.
 1189                  */
 1190                 if (wk->wk_keyix == IEEE80211_KEYIX_NONE)
 1191                         wk->wk_keyix = kid;
 1192                 ni = NULL;
 1193         }
 1194         error = 0;
 1195         ieee80211_key_update_begin(vap);
 1196         if (ieee80211_crypto_newkey(vap, ik.ik_type, ik.ik_flags, wk)) {
 1197                 wk->wk_keylen = ik.ik_keylen;
 1198                 /* NB: MIC presence is implied by cipher type */
 1199                 if (wk->wk_keylen > IEEE80211_KEYBUF_SIZE)
 1200                         wk->wk_keylen = IEEE80211_KEYBUF_SIZE;
 1201                 for (i = 0; i < IEEE80211_TID_SIZE; i++)
 1202                         wk->wk_keyrsc[i] = ik.ik_keyrsc;
 1203                 wk->wk_keytsc = 0;                      /* new key, reset */
 1204                 memset(wk->wk_key, 0, sizeof(wk->wk_key));
 1205                 memcpy(wk->wk_key, ik.ik_keydata, ik.ik_keylen);
 1206                 IEEE80211_ADDR_COPY(wk->wk_macaddr,
 1207                     ni != NULL ?  ni->ni_macaddr : ik.ik_macaddr);
 1208                 if (!ieee80211_crypto_setkey(vap, wk))
 1209                         error = EIO;
 1210                 else if ((ik.ik_flags & IEEE80211_KEY_DEFAULT))
 1211                         vap->iv_def_txkey = kid;
 1212         } else
 1213                 error = ENXIO;
 1214         ieee80211_key_update_end(vap);
 1215         if (ni != NULL)
 1216                 ieee80211_free_node(ni);
 1217         return error;
 1218 }
 1219 
 1220 static int
 1221 ieee80211_ioctl_delkey(struct ieee80211vap *vap, struct ieee80211req *ireq)
 1222 {
 1223         struct ieee80211req_del_key dk;
 1224         int kid, error;
 1225 
 1226         if (ireq->i_len != sizeof(dk))
 1227                 return EINVAL;
 1228         error = copyin(ireq->i_data, &dk, sizeof(dk));
 1229         if (error)
 1230                 return error;
 1231         kid = dk.idk_keyix;
 1232         /* XXX uint8_t -> uint16_t */
 1233         if (dk.idk_keyix == (uint8_t) IEEE80211_KEYIX_NONE) {
 1234                 struct ieee80211_node *ni;
 1235 
 1236                 if (vap->iv_opmode == IEEE80211_M_STA) {
 1237                         ni = ieee80211_ref_node(vap->iv_bss);
 1238                         if (!IEEE80211_ADDR_EQ(dk.idk_macaddr, ni->ni_bssid)) {
 1239                                 ieee80211_free_node(ni);
 1240                                 return EADDRNOTAVAIL;
 1241                         }
 1242                 } else {
 1243                         ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap,
 1244                                 dk.idk_macaddr);
 1245                         if (ni == NULL)
 1246                                 return ENOENT;
 1247                 }
 1248                 /* XXX error return */
 1249                 ieee80211_node_delucastkey(ni);
 1250                 ieee80211_free_node(ni);
 1251         } else {
 1252                 if (kid >= IEEE80211_WEP_NKID)
 1253                         return EINVAL;
 1254                 /* XXX error return */
 1255                 ieee80211_crypto_delkey(vap, &vap->iv_nw_keys[kid]);
 1256         }
 1257         return 0;
 1258 }
 1259 
 1260 struct mlmeop {
 1261         struct ieee80211vap *vap;
 1262         int     op;
 1263         int     reason;
 1264 };
 1265 
 1266 static void
 1267 mlmedebug(struct ieee80211vap *vap, const uint8_t mac[IEEE80211_ADDR_LEN],
 1268         int op, int reason)
 1269 {
 1270 #ifdef IEEE80211_DEBUG
 1271         static const struct {
 1272                 int mask;
 1273                 const char *opstr;
 1274         } ops[] = {
 1275                 { 0, "op#0" },
 1276                 { IEEE80211_MSG_IOCTL | IEEE80211_MSG_STATE |
 1277                   IEEE80211_MSG_ASSOC, "assoc" },
 1278                 { IEEE80211_MSG_IOCTL | IEEE80211_MSG_STATE |
 1279                   IEEE80211_MSG_ASSOC, "disassoc" },
 1280                 { IEEE80211_MSG_IOCTL | IEEE80211_MSG_STATE |
 1281                   IEEE80211_MSG_AUTH, "deauth" },
 1282                 { IEEE80211_MSG_IOCTL | IEEE80211_MSG_STATE |
 1283                   IEEE80211_MSG_AUTH, "authorize" },
 1284                 { IEEE80211_MSG_IOCTL | IEEE80211_MSG_STATE |
 1285                   IEEE80211_MSG_AUTH, "unauthorize" },
 1286         };
 1287 
 1288         if (op == IEEE80211_MLME_AUTH) {
 1289                 IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_IOCTL |
 1290                     IEEE80211_MSG_STATE | IEEE80211_MSG_AUTH, mac,
 1291                     "station authenticate %s via MLME (reason: %d (%s))",
 1292                     reason == IEEE80211_STATUS_SUCCESS ? "ACCEPT" : "REJECT",
 1293                     reason, ieee80211_reason_to_string(reason));
 1294         } else if (!(IEEE80211_MLME_ASSOC <= op && op <= IEEE80211_MLME_AUTH)) {
 1295                 IEEE80211_NOTE_MAC(vap, IEEE80211_MSG_ANY, mac,
 1296                     "unknown MLME request %d (reason: %d (%s))", op, reason,
 1297                     ieee80211_reason_to_string(reason));
 1298         } else if (reason == IEEE80211_STATUS_SUCCESS) {
 1299                 IEEE80211_NOTE_MAC(vap, ops[op].mask, mac,
 1300                     "station %s via MLME", ops[op].opstr);
 1301         } else {
 1302                 IEEE80211_NOTE_MAC(vap, ops[op].mask, mac,
 1303                     "station %s via MLME (reason: %d (%s))", ops[op].opstr,
 1304                     reason, ieee80211_reason_to_string(reason));
 1305         }
 1306 #endif /* IEEE80211_DEBUG */
 1307 }
 1308 
 1309 static void
 1310 domlme(void *arg, struct ieee80211_node *ni)
 1311 {
 1312         struct mlmeop *mop = arg;
 1313         struct ieee80211vap *vap = ni->ni_vap;
 1314 
 1315         if (vap != mop->vap)
 1316                 return;
 1317         /*
 1318          * NB: if ni_associd is zero then the node is already cleaned
 1319          * up and we don't need to do this (we're safely holding a
 1320          * reference but should otherwise not modify it's state).
 1321          */ 
 1322         if (ni->ni_associd == 0)
 1323                 return;
 1324         mlmedebug(vap, ni->ni_macaddr, mop->op, mop->reason);
 1325         if (mop->op == IEEE80211_MLME_DEAUTH) {
 1326                 IEEE80211_SEND_MGMT(ni, IEEE80211_FC0_SUBTYPE_DEAUTH,
 1327                     mop->reason);
 1328         } else {
 1329                 IEEE80211_SEND_MGMT(ni, IEEE80211_FC0_SUBTYPE_DISASSOC,
 1330                     mop->reason);
 1331         }
 1332         ieee80211_node_leave(ni);
 1333 }
 1334 
 1335 static int
 1336 setmlme_dropsta(struct ieee80211vap *vap,
 1337         const uint8_t mac[IEEE80211_ADDR_LEN], struct mlmeop *mlmeop)
 1338 {
 1339         struct ieee80211_node_table *nt = &vap->iv_ic->ic_sta;
 1340         struct ieee80211_node *ni;
 1341         int error = 0;
 1342 
 1343         /* NB: the broadcast address means do 'em all */
 1344         if (!IEEE80211_ADDR_EQ(mac, vap->iv_ifp->if_broadcastaddr)) {
 1345                 IEEE80211_NODE_LOCK(nt);
 1346                 ni = ieee80211_find_node_locked(nt, mac);
 1347                 IEEE80211_NODE_UNLOCK(nt);
 1348                 /*
 1349                  * Don't do the node update inside the node
 1350                  * table lock.  This unfortunately causes LORs
 1351                  * with drivers and their TX paths.
 1352                  */
 1353                 if (ni != NULL) {
 1354                         domlme(mlmeop, ni);
 1355                         ieee80211_free_node(ni);
 1356                 } else
 1357                         error = ENOENT;
 1358         } else {
 1359                 ieee80211_iterate_nodes(nt, domlme, mlmeop);
 1360         }
 1361         return error;
 1362 }
 1363 
 1364 static int
 1365 setmlme_common(struct ieee80211vap *vap, int op,
 1366         const uint8_t mac[IEEE80211_ADDR_LEN], int reason)
 1367 {
 1368         struct ieee80211com *ic = vap->iv_ic;
 1369         struct ieee80211_node_table *nt = &ic->ic_sta;
 1370         struct ieee80211_node *ni;
 1371         struct mlmeop mlmeop;
 1372         int error;
 1373 
 1374         error = 0;
 1375         switch (op) {
 1376         case IEEE80211_MLME_DISASSOC:
 1377         case IEEE80211_MLME_DEAUTH:
 1378                 switch (vap->iv_opmode) {
 1379                 case IEEE80211_M_STA:
 1380                         mlmedebug(vap, vap->iv_bss->ni_macaddr, op, reason);
 1381                         /* XXX not quite right */
 1382                         ieee80211_new_state(vap, IEEE80211_S_INIT, reason);
 1383                         break;
 1384                 case IEEE80211_M_HOSTAP:
 1385                         mlmeop.vap = vap;
 1386                         mlmeop.op = op;
 1387                         mlmeop.reason = reason;
 1388                         error = setmlme_dropsta(vap, mac, &mlmeop);
 1389                         break;
 1390                 case IEEE80211_M_WDS:
 1391                         /* XXX user app should send raw frame? */
 1392                         if (op != IEEE80211_MLME_DEAUTH) {
 1393                                 error = EINVAL;
 1394                                 break;
 1395                         }
 1396 #if 0
 1397                         /* XXX accept any address, simplifies user code */
 1398                         if (!IEEE80211_ADDR_EQ(mac, vap->iv_bss->ni_macaddr)) {
 1399                                 error = EINVAL;
 1400                                 break;
 1401                         }
 1402 #endif
 1403                         mlmedebug(vap, vap->iv_bss->ni_macaddr, op, reason);
 1404                         ni = ieee80211_ref_node(vap->iv_bss);
 1405                         IEEE80211_SEND_MGMT(ni,
 1406                             IEEE80211_FC0_SUBTYPE_DEAUTH, reason);
 1407                         ieee80211_free_node(ni);
 1408                         break;
 1409                 case IEEE80211_M_MBSS:
 1410                         IEEE80211_NODE_LOCK(nt);
 1411                         ni = ieee80211_find_node_locked(nt, mac);
 1412                         /*
 1413                          * Don't do the node update inside the node
 1414                          * table lock.  This unfortunately causes LORs
 1415                          * with drivers and their TX paths.
 1416                          */
 1417                         IEEE80211_NODE_UNLOCK(nt);
 1418                         if (ni != NULL) {
 1419                                 ieee80211_node_leave(ni);
 1420                                 ieee80211_free_node(ni);
 1421                         } else {
 1422                                 error = ENOENT;
 1423                         }
 1424                         break;
 1425                 default:
 1426                         error = EINVAL;
 1427                         break;
 1428                 }
 1429                 break;
 1430         case IEEE80211_MLME_AUTHORIZE:
 1431         case IEEE80211_MLME_UNAUTHORIZE:
 1432                 if (vap->iv_opmode != IEEE80211_M_HOSTAP &&
 1433                     vap->iv_opmode != IEEE80211_M_WDS) {
 1434                         error = EINVAL;
 1435                         break;
 1436                 }
 1437                 IEEE80211_NODE_LOCK(nt);
 1438                 ni = ieee80211_find_vap_node_locked(nt, vap, mac);
 1439                 /*
 1440                  * Don't do the node update inside the node
 1441                  * table lock.  This unfortunately causes LORs
 1442                  * with drivers and their TX paths.
 1443                  */
 1444                 IEEE80211_NODE_UNLOCK(nt);
 1445                 if (ni != NULL) {
 1446                         mlmedebug(vap, mac, op, reason);
 1447                         if (op == IEEE80211_MLME_AUTHORIZE)
 1448                                 ieee80211_node_authorize(ni);
 1449                         else
 1450                                 ieee80211_node_unauthorize(ni);
 1451                         ieee80211_free_node(ni);
 1452                 } else
 1453                         error = ENOENT;
 1454                 break;
 1455         case IEEE80211_MLME_AUTH:
 1456                 if (vap->iv_opmode != IEEE80211_M_HOSTAP) {
 1457                         error = EINVAL;
 1458                         break;
 1459                 }
 1460                 IEEE80211_NODE_LOCK(nt);
 1461                 ni = ieee80211_find_vap_node_locked(nt, vap, mac);
 1462                 /*
 1463                  * Don't do the node update inside the node
 1464                  * table lock.  This unfortunately causes LORs
 1465                  * with drivers and their TX paths.
 1466                  */
 1467                 IEEE80211_NODE_UNLOCK(nt);
 1468                 if (ni != NULL) {
 1469                         mlmedebug(vap, mac, op, reason);
 1470                         if (reason == IEEE80211_STATUS_SUCCESS) {
 1471                                 IEEE80211_SEND_MGMT(ni,
 1472                                     IEEE80211_FC0_SUBTYPE_AUTH, 2);
 1473                                 /*
 1474                                  * For shared key auth, just continue the
 1475                                  * exchange.  Otherwise when 802.1x is not in
 1476                                  * use mark the port authorized at this point
 1477                                  * so traffic can flow.
 1478                                  */
 1479                                 if (ni->ni_authmode != IEEE80211_AUTH_8021X &&
 1480                                     ni->ni_challenge == NULL)
 1481                                       ieee80211_node_authorize(ni);
 1482                         } else {
 1483                                 vap->iv_stats.is_rx_acl++;
 1484                                 ieee80211_send_error(ni, ni->ni_macaddr,
 1485                                     IEEE80211_FC0_SUBTYPE_AUTH, 2|(reason<<16));
 1486                                 ieee80211_node_leave(ni);
 1487                         }
 1488                         ieee80211_free_node(ni);
 1489                 } else
 1490                         error = ENOENT;
 1491                 break;
 1492         default:
 1493                 error = EINVAL;
 1494                 break;
 1495         }
 1496         return error;
 1497 }
 1498 
 1499 struct scanlookup {
 1500         const uint8_t *mac;
 1501         int esslen;
 1502         const uint8_t *essid;
 1503         const struct ieee80211_scan_entry *se;
 1504 };
 1505 
 1506 /*
 1507  * Match mac address and any ssid.
 1508  */
 1509 static void
 1510 mlmelookup(void *arg, const struct ieee80211_scan_entry *se)
 1511 {
 1512         struct scanlookup *look = arg;
 1513 
 1514         if (!IEEE80211_ADDR_EQ(look->mac, se->se_macaddr))
 1515                 return;
 1516         if (look->esslen != 0) {
 1517                 if (se->se_ssid[1] != look->esslen)
 1518                         return;
 1519                 if (memcmp(look->essid, se->se_ssid+2, look->esslen))
 1520                         return;
 1521         }
 1522         look->se = se;
 1523 }
 1524 
 1525 static int
 1526 setmlme_assoc_sta(struct ieee80211vap *vap,
 1527         const uint8_t mac[IEEE80211_ADDR_LEN], int ssid_len,
 1528         const uint8_t ssid[IEEE80211_NWID_LEN])
 1529 {
 1530         struct scanlookup lookup;
 1531 
 1532         KASSERT(vap->iv_opmode == IEEE80211_M_STA,
 1533             ("expected opmode STA not %s",
 1534             ieee80211_opmode_name[vap->iv_opmode]));
 1535 
 1536         /* NB: this is racey if roaming is !manual */
 1537         lookup.se = NULL;
 1538         lookup.mac = mac;
 1539         lookup.esslen = ssid_len;
 1540         lookup.essid = ssid;
 1541         ieee80211_scan_iterate(vap, mlmelookup, &lookup);
 1542         if (lookup.se == NULL)
 1543                 return ENOENT;
 1544         mlmedebug(vap, mac, IEEE80211_MLME_ASSOC, 0);
 1545         if (!ieee80211_sta_join(vap, lookup.se->se_chan, lookup.se))
 1546                 return EIO;             /* XXX unique but could be better */
 1547         return 0;
 1548 }
 1549 
 1550 static int
 1551 setmlme_assoc_adhoc(struct ieee80211vap *vap,
 1552         const uint8_t mac[IEEE80211_ADDR_LEN], int ssid_len,
 1553         const uint8_t ssid[IEEE80211_NWID_LEN])
 1554 {
 1555         struct ieee80211_scan_req *sr;
 1556         int error;
 1557 
 1558         KASSERT(vap->iv_opmode == IEEE80211_M_IBSS ||
 1559             vap->iv_opmode == IEEE80211_M_AHDEMO,
 1560             ("expected opmode IBSS or AHDEMO not %s",
 1561             ieee80211_opmode_name[vap->iv_opmode]));
 1562 
 1563         if (ssid_len == 0)
 1564                 return EINVAL;
 1565 
 1566         sr = IEEE80211_MALLOC(sizeof(*sr), M_TEMP,
 1567              IEEE80211_M_NOWAIT | IEEE80211_M_ZERO);
 1568         if (sr == NULL)
 1569                 return ENOMEM;
 1570 
 1571         /* NB: IEEE80211_IOC_SSID call missing for ap_scan=2. */
 1572         memset(vap->iv_des_ssid[0].ssid, 0, IEEE80211_NWID_LEN);
 1573         vap->iv_des_ssid[0].len = ssid_len;
 1574         memcpy(vap->iv_des_ssid[0].ssid, ssid, ssid_len);
 1575         vap->iv_des_nssid = 1;
 1576 
 1577         sr->sr_flags = IEEE80211_IOC_SCAN_ACTIVE | IEEE80211_IOC_SCAN_ONCE;
 1578         sr->sr_duration = IEEE80211_IOC_SCAN_FOREVER;
 1579         memcpy(sr->sr_ssid[0].ssid, ssid, ssid_len);
 1580         sr->sr_ssid[0].len = ssid_len;
 1581         sr->sr_nssid = 1;
 1582 
 1583         error = ieee80211_scanreq(vap, sr);
 1584 
 1585         IEEE80211_FREE(sr, M_TEMP);
 1586         return error;
 1587 }
 1588 
 1589 static int
 1590 ieee80211_ioctl_setmlme(struct ieee80211vap *vap, struct ieee80211req *ireq)
 1591 {
 1592         struct ieee80211req_mlme mlme;
 1593         int error;
 1594 
 1595         if (ireq->i_len != sizeof(mlme))
 1596                 return EINVAL;
 1597         error = copyin(ireq->i_data, &mlme, sizeof(mlme));
 1598         if (error)
 1599                 return error;
 1600         if  (vap->iv_opmode == IEEE80211_M_STA &&
 1601             mlme.im_op == IEEE80211_MLME_ASSOC)
 1602                 return setmlme_assoc_sta(vap, mlme.im_macaddr,
 1603                     vap->iv_des_ssid[0].len, vap->iv_des_ssid[0].ssid);
 1604         else if ((vap->iv_opmode == IEEE80211_M_IBSS || 
 1605             vap->iv_opmode == IEEE80211_M_AHDEMO) && 
 1606             mlme.im_op == IEEE80211_MLME_ASSOC)
 1607                 return setmlme_assoc_adhoc(vap, mlme.im_macaddr,
 1608                     mlme.im_ssid_len, mlme.im_ssid);
 1609         else
 1610                 return setmlme_common(vap, mlme.im_op,
 1611                     mlme.im_macaddr, mlme.im_reason);
 1612 }
 1613 
 1614 static int
 1615 ieee80211_ioctl_macmac(struct ieee80211vap *vap, struct ieee80211req *ireq)
 1616 {
 1617         uint8_t mac[IEEE80211_ADDR_LEN];
 1618         const struct ieee80211_aclator *acl = vap->iv_acl;
 1619         int error;
 1620 
 1621         if (ireq->i_len != sizeof(mac))
 1622                 return EINVAL;
 1623         error = copyin(ireq->i_data, mac, ireq->i_len);
 1624         if (error)
 1625                 return error;
 1626         if (acl == NULL) {
 1627                 acl = ieee80211_aclator_get("mac");
 1628                 if (acl == NULL || !acl->iac_attach(vap))
 1629                         return EINVAL;
 1630                 vap->iv_acl = acl;
 1631         }
 1632         if (ireq->i_type == IEEE80211_IOC_ADDMAC)
 1633                 acl->iac_add(vap, mac);
 1634         else
 1635                 acl->iac_remove(vap, mac);
 1636         return 0;
 1637 }
 1638 
 1639 static int
 1640 ieee80211_ioctl_setmaccmd(struct ieee80211vap *vap, struct ieee80211req *ireq)
 1641 {
 1642         const struct ieee80211_aclator *acl = vap->iv_acl;
 1643 
 1644         switch (ireq->i_val) {
 1645         case IEEE80211_MACCMD_POLICY_OPEN:
 1646         case IEEE80211_MACCMD_POLICY_ALLOW:
 1647         case IEEE80211_MACCMD_POLICY_DENY:
 1648         case IEEE80211_MACCMD_POLICY_RADIUS:
 1649                 if (acl == NULL) {
 1650                         acl = ieee80211_aclator_get("mac");
 1651                         if (acl == NULL || !acl->iac_attach(vap))
 1652                                 return EINVAL;
 1653                         vap->iv_acl = acl;
 1654                 }
 1655                 acl->iac_setpolicy(vap, ireq->i_val);
 1656                 break;
 1657         case IEEE80211_MACCMD_FLUSH:
 1658                 if (acl != NULL)
 1659                         acl->iac_flush(vap);
 1660                 /* NB: silently ignore when not in use */
 1661                 break;
 1662         case IEEE80211_MACCMD_DETACH:
 1663                 if (acl != NULL) {
 1664                         vap->iv_acl = NULL;
 1665                         acl->iac_detach(vap);
 1666                 }
 1667                 break;
 1668         default:
 1669                 if (acl == NULL)
 1670                         return EINVAL;
 1671                 else
 1672                         return acl->iac_setioctl(vap, ireq);
 1673         }
 1674         return 0;
 1675 }
 1676 
 1677 static int
 1678 ieee80211_ioctl_setchanlist(struct ieee80211vap *vap, struct ieee80211req *ireq)
 1679 {
 1680         struct ieee80211com *ic = vap->iv_ic;
 1681         uint8_t *chanlist, *list;
 1682         int i, nchan, maxchan, error;
 1683 
 1684         if (ireq->i_len > sizeof(ic->ic_chan_active))
 1685                 ireq->i_len = sizeof(ic->ic_chan_active);
 1686         list = IEEE80211_MALLOC(ireq->i_len + IEEE80211_CHAN_BYTES, M_TEMP,
 1687             IEEE80211_M_NOWAIT | IEEE80211_M_ZERO);
 1688         if (list == NULL)
 1689                 return ENOMEM;
 1690         error = copyin(ireq->i_data, list, ireq->i_len);
 1691         if (error) {
 1692                 IEEE80211_FREE(list, M_TEMP);
 1693                 return error;
 1694         }
 1695         nchan = 0;
 1696         chanlist = list + ireq->i_len;          /* NB: zero'd already */
 1697         maxchan = ireq->i_len * NBBY;
 1698         for (i = 0; i < ic->ic_nchans; i++) {
 1699                 const struct ieee80211_channel *c = &ic->ic_channels[i];
 1700                 /*
 1701                  * Calculate the intersection of the user list and the
 1702                  * available channels so users can do things like specify
 1703                  * 1-255 to get all available channels.
 1704                  */
 1705                 if (c->ic_ieee < maxchan && isset(list, c->ic_ieee)) {
 1706                         setbit(chanlist, c->ic_ieee);
 1707                         nchan++;
 1708                 }
 1709         }
 1710         if (nchan == 0) {
 1711                 IEEE80211_FREE(list, M_TEMP);
 1712                 return EINVAL;
 1713         }
 1714         if (ic->ic_bsschan != IEEE80211_CHAN_ANYC &&    /* XXX */
 1715             isclr(chanlist, ic->ic_bsschan->ic_ieee))
 1716                 ic->ic_bsschan = IEEE80211_CHAN_ANYC;
 1717         memcpy(ic->ic_chan_active, chanlist, IEEE80211_CHAN_BYTES);
 1718         ieee80211_scan_flush(vap);
 1719         IEEE80211_FREE(list, M_TEMP);
 1720         return ENETRESET;
 1721 }
 1722 
 1723 static int
 1724 ieee80211_ioctl_setstastats(struct ieee80211vap *vap, struct ieee80211req *ireq)
 1725 {
 1726         struct ieee80211_node *ni;
 1727         uint8_t macaddr[IEEE80211_ADDR_LEN];
 1728         int error;
 1729 
 1730         /*
 1731          * NB: we could copyin ieee80211req_sta_stats so apps
 1732          *     could make selective changes but that's overkill;
 1733          *     just clear all stats for now.
 1734          */
 1735         if (ireq->i_len < IEEE80211_ADDR_LEN)
 1736                 return EINVAL;
 1737         error = copyin(ireq->i_data, macaddr, IEEE80211_ADDR_LEN);
 1738         if (error != 0)
 1739                 return error;
 1740         ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap, macaddr);
 1741         if (ni == NULL)
 1742                 return ENOENT;
 1743         /* XXX require ni_vap == vap? */
 1744         memset(&ni->ni_stats, 0, sizeof(ni->ni_stats));
 1745         ieee80211_free_node(ni);
 1746         return 0;
 1747 }
 1748 
 1749 static int
 1750 ieee80211_ioctl_setstatxpow(struct ieee80211vap *vap, struct ieee80211req *ireq)
 1751 {
 1752         struct ieee80211_node *ni;
 1753         struct ieee80211req_sta_txpow txpow;
 1754         int error;
 1755 
 1756         if (ireq->i_len != sizeof(txpow))
 1757                 return EINVAL;
 1758         error = copyin(ireq->i_data, &txpow, sizeof(txpow));
 1759         if (error != 0)
 1760                 return error;
 1761         ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap, txpow.it_macaddr);
 1762         if (ni == NULL)
 1763                 return ENOENT;
 1764         ni->ni_txpower = txpow.it_txpow;
 1765         ieee80211_free_node(ni);
 1766         return error;
 1767 }
 1768 
 1769 static int
 1770 ieee80211_ioctl_setwmeparam(struct ieee80211vap *vap, struct ieee80211req *ireq)
 1771 {
 1772         struct ieee80211com *ic = vap->iv_ic;
 1773         struct ieee80211_wme_state *wme = &ic->ic_wme;
 1774         struct wmeParams *wmep, *chanp;
 1775         int isbss, ac, aggrmode;
 1776 
 1777         if ((ic->ic_caps & IEEE80211_C_WME) == 0)
 1778                 return EOPNOTSUPP;
 1779 
 1780         isbss = (ireq->i_len & IEEE80211_WMEPARAM_BSS);
 1781         ac = (ireq->i_len & IEEE80211_WMEPARAM_VAL);
 1782         aggrmode = (wme->wme_flags & WME_F_AGGRMODE);
 1783         if (ac >= WME_NUM_AC)
 1784                 ac = WME_AC_BE;
 1785         if (isbss) {
 1786                 chanp = &wme->wme_bssChanParams.cap_wmeParams[ac];
 1787                 wmep = &wme->wme_wmeBssChanParams.cap_wmeParams[ac];
 1788         } else {
 1789                 chanp = &wme->wme_chanParams.cap_wmeParams[ac];
 1790                 wmep = &wme->wme_wmeChanParams.cap_wmeParams[ac];
 1791         }
 1792         switch (ireq->i_type) {
 1793         case IEEE80211_IOC_WME_CWMIN:           /* WME: CWmin */
 1794                 wmep->wmep_logcwmin = ireq->i_val;
 1795                 if (!isbss || !aggrmode)
 1796                         chanp->wmep_logcwmin = ireq->i_val;
 1797                 break;
 1798         case IEEE80211_IOC_WME_CWMAX:           /* WME: CWmax */
 1799                 wmep->wmep_logcwmax = ireq->i_val;
 1800                 if (!isbss || !aggrmode)
 1801                         chanp->wmep_logcwmax = ireq->i_val;
 1802                 break;
 1803         case IEEE80211_IOC_WME_AIFS:            /* WME: AIFS */
 1804                 wmep->wmep_aifsn = ireq->i_val;
 1805                 if (!isbss || !aggrmode)
 1806                         chanp->wmep_aifsn = ireq->i_val;
 1807                 break;
 1808         case IEEE80211_IOC_WME_TXOPLIMIT:       /* WME: txops limit */
 1809                 wmep->wmep_txopLimit = ireq->i_val;
 1810                 if (!isbss || !aggrmode)
 1811                         chanp->wmep_txopLimit = ireq->i_val;
 1812                 break;
 1813         case IEEE80211_IOC_WME_ACM:             /* WME: ACM (bss only) */
 1814                 wmep->wmep_acm = ireq->i_val;
 1815                 if (!aggrmode)
 1816                         chanp->wmep_acm = ireq->i_val;
 1817                 break;
 1818         case IEEE80211_IOC_WME_ACKPOLICY:       /* WME: ACK policy (!bss only)*/
 1819                 wmep->wmep_noackPolicy = chanp->wmep_noackPolicy =
 1820                         (ireq->i_val) == 0;
 1821                 break;
 1822         }
 1823         ieee80211_wme_updateparams(vap);
 1824         return 0;
 1825 }
 1826 
 1827 static int
 1828 find11gchannel(struct ieee80211com *ic, int start, int freq)
 1829 {
 1830         const struct ieee80211_channel *c;
 1831         int i;
 1832 
 1833         for (i = start+1; i < ic->ic_nchans; i++) {
 1834                 c = &ic->ic_channels[i];
 1835                 if (c->ic_freq == freq && IEEE80211_IS_CHAN_ANYG(c))
 1836                         return 1;
 1837         }
 1838         /* NB: should not be needed but in case things are mis-sorted */
 1839         for (i = 0; i < start; i++) {
 1840                 c = &ic->ic_channels[i];
 1841                 if (c->ic_freq == freq && IEEE80211_IS_CHAN_ANYG(c))
 1842                         return 1;
 1843         }
 1844         return 0;
 1845 }
 1846 
 1847 static struct ieee80211_channel *
 1848 findchannel(struct ieee80211com *ic, int ieee, int mode)
 1849 {
 1850         static const u_int chanflags[IEEE80211_MODE_MAX] = {
 1851             [IEEE80211_MODE_AUTO]       = 0,
 1852             [IEEE80211_MODE_11A]        = IEEE80211_CHAN_A,
 1853             [IEEE80211_MODE_11B]        = IEEE80211_CHAN_B,
 1854             [IEEE80211_MODE_11G]        = IEEE80211_CHAN_G,
 1855             [IEEE80211_MODE_FH]         = IEEE80211_CHAN_FHSS,
 1856             [IEEE80211_MODE_TURBO_A]    = IEEE80211_CHAN_108A,
 1857             [IEEE80211_MODE_TURBO_G]    = IEEE80211_CHAN_108G,
 1858             [IEEE80211_MODE_STURBO_A]   = IEEE80211_CHAN_STURBO,
 1859             [IEEE80211_MODE_HALF]       = IEEE80211_CHAN_HALF,
 1860             [IEEE80211_MODE_QUARTER]    = IEEE80211_CHAN_QUARTER,
 1861             /* NB: handled specially below */
 1862             [IEEE80211_MODE_11NA]       = IEEE80211_CHAN_A,
 1863             [IEEE80211_MODE_11NG]       = IEEE80211_CHAN_G,
 1864         };
 1865         u_int modeflags;
 1866         int i;
 1867 
 1868         modeflags = chanflags[mode];
 1869         for (i = 0; i < ic->ic_nchans; i++) {
 1870                 struct ieee80211_channel *c = &ic->ic_channels[i];
 1871 
 1872                 if (c->ic_ieee != ieee)
 1873                         continue;
 1874                 if (mode == IEEE80211_MODE_AUTO) {
 1875                         /* ignore turbo channels for autoselect */
 1876                         if (IEEE80211_IS_CHAN_TURBO(c))
 1877                                 continue;
 1878                         /*
 1879                          * XXX special-case 11b/g channels so we
 1880                          *     always select the g channel if both
 1881                          *     are present.
 1882                          * XXX prefer HT to non-HT?
 1883                          */
 1884                         if (!IEEE80211_IS_CHAN_B(c) ||
 1885                             !find11gchannel(ic, i, c->ic_freq))
 1886                                 return c;
 1887                 } else {
 1888                         /* must check HT specially */
 1889                         if ((mode == IEEE80211_MODE_11NA ||
 1890                             mode == IEEE80211_MODE_11NG) &&
 1891                             !IEEE80211_IS_CHAN_HT(c))
 1892                                 continue;
 1893                         if ((c->ic_flags & modeflags) == modeflags)
 1894                                 return c;
 1895                 }
 1896         }
 1897         return NULL;
 1898 }
 1899 
 1900 /*
 1901  * Check the specified against any desired mode (aka netband).
 1902  * This is only used (presently) when operating in hostap mode
 1903  * to enforce consistency.
 1904  */
 1905 static int
 1906 check_mode_consistency(const struct ieee80211_channel *c, int mode)
 1907 {
 1908         KASSERT(c != IEEE80211_CHAN_ANYC, ("oops, no channel"));
 1909 
 1910         switch (mode) {
 1911         case IEEE80211_MODE_11B:
 1912                 return (IEEE80211_IS_CHAN_B(c));
 1913         case IEEE80211_MODE_11G:
 1914                 return (IEEE80211_IS_CHAN_ANYG(c) && !IEEE80211_IS_CHAN_HT(c));
 1915         case IEEE80211_MODE_11A:
 1916                 return (IEEE80211_IS_CHAN_A(c) && !IEEE80211_IS_CHAN_HT(c));
 1917         case IEEE80211_MODE_STURBO_A:
 1918                 return (IEEE80211_IS_CHAN_STURBO(c));
 1919         case IEEE80211_MODE_11NA:
 1920                 return (IEEE80211_IS_CHAN_HTA(c));
 1921         case IEEE80211_MODE_11NG:
 1922                 return (IEEE80211_IS_CHAN_HTG(c));
 1923         }
 1924         return 1;
 1925 
 1926 }
 1927 
 1928 /*
 1929  * Common code to set the current channel.  If the device
 1930  * is up and running this may result in an immediate channel
 1931  * change or a kick of the state machine.
 1932  */
 1933 static int
 1934 setcurchan(struct ieee80211vap *vap, struct ieee80211_channel *c)
 1935 {
 1936         struct ieee80211com *ic = vap->iv_ic;
 1937         int error;
 1938 
 1939         if (c != IEEE80211_CHAN_ANYC) {
 1940                 if (IEEE80211_IS_CHAN_RADAR(c))
 1941                         return EBUSY;   /* XXX better code? */
 1942                 if (vap->iv_opmode == IEEE80211_M_HOSTAP) {
 1943                         if (IEEE80211_IS_CHAN_NOHOSTAP(c))
 1944                                 return EINVAL;
 1945                         if (!check_mode_consistency(c, vap->iv_des_mode))
 1946                                 return EINVAL;
 1947                 } else if (vap->iv_opmode == IEEE80211_M_IBSS) {
 1948                         if (IEEE80211_IS_CHAN_NOADHOC(c))
 1949                                 return EINVAL;
 1950                 }
 1951                 if ((vap->iv_state == IEEE80211_S_RUN || vap->iv_state == IEEE80211_S_SLEEP) &&
 1952                     vap->iv_bss->ni_chan == c)
 1953                         return 0;       /* NB: nothing to do */
 1954         }
 1955         vap->iv_des_chan = c;
 1956 
 1957         error = 0;
 1958         if (vap->iv_opmode == IEEE80211_M_MONITOR &&
 1959             vap->iv_des_chan != IEEE80211_CHAN_ANYC) {
 1960                 /*
 1961                  * Monitor mode can switch directly.
 1962                  */
 1963                 if (IFNET_IS_UP_RUNNING(vap->iv_ifp)) {
 1964                         /* XXX need state machine for other vap's to follow */
 1965                         ieee80211_setcurchan(ic, vap->iv_des_chan);
 1966                         vap->iv_bss->ni_chan = ic->ic_curchan;
 1967                 } else {
 1968                         ic->ic_curchan = vap->iv_des_chan;
 1969                         ic->ic_rt = ieee80211_get_ratetable(ic->ic_curchan);
 1970                 }
 1971         } else {
 1972                 /*
 1973                  * Need to go through the state machine in case we
 1974                  * need to reassociate or the like.  The state machine
 1975                  * will pickup the desired channel and avoid scanning.
 1976                  */
 1977                 if (IS_UP_AUTO(vap))
 1978                         ieee80211_new_state(vap, IEEE80211_S_SCAN, 0);
 1979                 else if (vap->iv_des_chan != IEEE80211_CHAN_ANYC) {
 1980                         /*
 1981                          * When not up+running and a real channel has
 1982                          * been specified fix the current channel so
 1983                          * there is immediate feedback; e.g. via ifconfig.
 1984                          */
 1985                         ic->ic_curchan = vap->iv_des_chan;
 1986                         ic->ic_rt = ieee80211_get_ratetable(ic->ic_curchan);
 1987                 }
 1988         }
 1989         return error;
 1990 }
 1991 
 1992 /*
 1993  * Old api for setting the current channel; this is
 1994  * deprecated because channel numbers are ambiguous.
 1995  */
 1996 static int
 1997 ieee80211_ioctl_setchannel(struct ieee80211vap *vap,
 1998         const struct ieee80211req *ireq)
 1999 {
 2000         struct ieee80211com *ic = vap->iv_ic;
 2001         struct ieee80211_channel *c;
 2002 
 2003         /* XXX 0xffff overflows 16-bit signed */
 2004         if (ireq->i_val == 0 ||
 2005             ireq->i_val == (int16_t) IEEE80211_CHAN_ANY) {
 2006                 c = IEEE80211_CHAN_ANYC;
 2007         } else {
 2008                 struct ieee80211_channel *c2;
 2009 
 2010                 c = findchannel(ic, ireq->i_val, vap->iv_des_mode);
 2011                 if (c == NULL) {
 2012                         c = findchannel(ic, ireq->i_val,
 2013                                 IEEE80211_MODE_AUTO);
 2014                         if (c == NULL)
 2015                                 return EINVAL;
 2016                 }
 2017                 /*
 2018                  * Fine tune channel selection based on desired mode:
 2019                  *   if 11b is requested, find the 11b version of any
 2020                  *      11g channel returned,
 2021                  *   if static turbo, find the turbo version of any
 2022                  *      11a channel return,
 2023                  *   if 11na is requested, find the ht version of any
 2024                  *      11a channel returned,
 2025                  *   if 11ng is requested, find the ht version of any
 2026                  *      11g channel returned,
 2027                  *   otherwise we should be ok with what we've got.
 2028                  */
 2029                 switch (vap->iv_des_mode) {
 2030                 case IEEE80211_MODE_11B:
 2031                         if (IEEE80211_IS_CHAN_ANYG(c)) {
 2032                                 c2 = findchannel(ic, ireq->i_val,
 2033                                         IEEE80211_MODE_11B);
 2034                                 /* NB: should not happen, =>'s 11g w/o 11b */
 2035                                 if (c2 != NULL)
 2036                                         c = c2;
 2037                         }
 2038                         break;
 2039                 case IEEE80211_MODE_TURBO_A:
 2040                         if (IEEE80211_IS_CHAN_A(c)) {
 2041                                 c2 = findchannel(ic, ireq->i_val,
 2042                                         IEEE80211_MODE_TURBO_A);
 2043                                 if (c2 != NULL)
 2044                                         c = c2;
 2045                         }
 2046                         break;
 2047                 case IEEE80211_MODE_11NA:
 2048                         if (IEEE80211_IS_CHAN_A(c)) {
 2049                                 c2 = findchannel(ic, ireq->i_val,
 2050                                         IEEE80211_MODE_11NA);
 2051                                 if (c2 != NULL)
 2052                                         c = c2;
 2053                         }
 2054                         break;
 2055                 case IEEE80211_MODE_11NG:
 2056                         if (IEEE80211_IS_CHAN_ANYG(c)) {
 2057                                 c2 = findchannel(ic, ireq->i_val,
 2058                                         IEEE80211_MODE_11NG);
 2059                                 if (c2 != NULL)
 2060                                         c = c2;
 2061                         }
 2062                         break;
 2063                 default:                /* NB: no static turboG */
 2064                         break;
 2065                 }
 2066         }
 2067         return setcurchan(vap, c);
 2068 }
 2069 
 2070 /*
 2071  * New/current api for setting the current channel; a complete
 2072  * channel description is provide so there is no ambiguity in
 2073  * identifying the channel.
 2074  */
 2075 static int
 2076 ieee80211_ioctl_setcurchan(struct ieee80211vap *vap,
 2077         const struct ieee80211req *ireq)
 2078 {
 2079         struct ieee80211com *ic = vap->iv_ic;
 2080         struct ieee80211_channel chan, *c;
 2081         int error;
 2082 
 2083         if (ireq->i_len != sizeof(chan))
 2084                 return EINVAL;
 2085         error = copyin(ireq->i_data, &chan, sizeof(chan));
 2086         if (error != 0)
 2087                 return error;
 2088         /* XXX 0xffff overflows 16-bit signed */
 2089         if (chan.ic_freq == 0 || chan.ic_freq == IEEE80211_CHAN_ANY) {
 2090                 c = IEEE80211_CHAN_ANYC;
 2091         } else {
 2092                 c = ieee80211_find_channel(ic, chan.ic_freq, chan.ic_flags);
 2093                 if (c == NULL)
 2094                         return EINVAL;
 2095         }
 2096         return setcurchan(vap, c);
 2097 }
 2098 
 2099 static int
 2100 ieee80211_ioctl_setregdomain(struct ieee80211vap *vap,
 2101         const struct ieee80211req *ireq)
 2102 {
 2103         struct ieee80211_regdomain_req *reg;
 2104         int nchans, error;
 2105 
 2106         nchans = 1 + ((ireq->i_len - sizeof(struct ieee80211_regdomain_req)) /
 2107             sizeof(struct ieee80211_channel));
 2108         if (!(1 <= nchans && nchans <= IEEE80211_CHAN_MAX)) {
 2109                 IEEE80211_DPRINTF(vap, IEEE80211_MSG_IOCTL,
 2110                     "%s: bad # chans, i_len %d nchans %d\n", __func__,
 2111                     ireq->i_len, nchans);
 2112                 return EINVAL;
 2113         }
 2114         reg = (struct ieee80211_regdomain_req *)
 2115             IEEE80211_MALLOC(IEEE80211_REGDOMAIN_SIZE(nchans), M_TEMP,
 2116               IEEE80211_M_NOWAIT | IEEE80211_M_ZERO);
 2117         if (reg == NULL) {
 2118                 IEEE80211_DPRINTF(vap, IEEE80211_MSG_IOCTL,
 2119                     "%s: no memory, nchans %d\n", __func__, nchans);
 2120                 return ENOMEM;
 2121         }
 2122         error = copyin(ireq->i_data, reg, IEEE80211_REGDOMAIN_SIZE(nchans));
 2123         if (error == 0) {
 2124                 /* NB: validate inline channel count against storage size */
 2125                 if (reg->chaninfo.ic_nchans != nchans) {
 2126                         IEEE80211_DPRINTF(vap, IEEE80211_MSG_IOCTL,
 2127                             "%s: chan cnt mismatch, %d != %d\n", __func__,
 2128                                 reg->chaninfo.ic_nchans, nchans);
 2129                         error = EINVAL;
 2130                 } else
 2131                         error = ieee80211_setregdomain(vap, reg);
 2132         }
 2133         IEEE80211_FREE(reg, M_TEMP);
 2134 
 2135         return (error == 0 ? ENETRESET : error);
 2136 }
 2137 
 2138 static int
 2139 ieee80211_ioctl_setroam(struct ieee80211vap *vap,
 2140         const struct ieee80211req *ireq)
 2141 {
 2142         if (ireq->i_len != sizeof(vap->iv_roamparms))
 2143                 return EINVAL;
 2144         /* XXX validate params */
 2145         /* XXX? ENETRESET to push to device? */
 2146         return copyin(ireq->i_data, vap->iv_roamparms,
 2147             sizeof(vap->iv_roamparms));
 2148 }
 2149 
 2150 static int
 2151 checkrate(const struct ieee80211_rateset *rs, int rate)
 2152 {
 2153         int i;
 2154 
 2155         if (rate == IEEE80211_FIXED_RATE_NONE)
 2156                 return 1;
 2157         for (i = 0; i < rs->rs_nrates; i++)
 2158                 if ((rs->rs_rates[i] & IEEE80211_RATE_VAL) == rate)
 2159                         return 1;
 2160         return 0;
 2161 }
 2162 
 2163 static int
 2164 checkmcs(int mcs)
 2165 {
 2166         if (mcs == IEEE80211_FIXED_RATE_NONE)
 2167                 return 1;
 2168         if ((mcs & IEEE80211_RATE_MCS) == 0)    /* MCS always have 0x80 set */
 2169                 return 0;
 2170         return (mcs & 0x7f) <= 15;      /* XXX could search ht rate set */
 2171 }
 2172 
 2173 static int
 2174 ieee80211_ioctl_settxparams(struct ieee80211vap *vap,
 2175         const struct ieee80211req *ireq)
 2176 {
 2177         struct ieee80211com *ic = vap->iv_ic;
 2178         struct ieee80211_txparams_req parms;    /* XXX stack use? */
 2179         struct ieee80211_txparam *src, *dst;
 2180         const struct ieee80211_rateset *rs;
 2181         int error, mode, changed, is11n, nmodes;
 2182 
 2183         /* NB: accept short requests for backwards compat */
 2184         if (ireq->i_len > sizeof(parms))
 2185                 return EINVAL;
 2186         error = copyin(ireq->i_data, &parms, ireq->i_len);
 2187         if (error != 0)
 2188                 return error;
 2189         nmodes = ireq->i_len / sizeof(struct ieee80211_txparam);
 2190         changed = 0;
 2191         /* validate parameters and check if anything changed */
 2192         for (mode = IEEE80211_MODE_11A; mode < nmodes; mode++) {
 2193                 if (isclr(ic->ic_modecaps, mode))
 2194                         continue;
 2195                 src = &parms.params[mode];
 2196                 dst = &vap->iv_txparms[mode];
 2197                 rs = &ic->ic_sup_rates[mode];   /* NB: 11n maps to legacy */
 2198                 is11n = (mode == IEEE80211_MODE_11NA ||
 2199                          mode == IEEE80211_MODE_11NG);
 2200                 if (src->ucastrate != dst->ucastrate) {
 2201                         if (!checkrate(rs, src->ucastrate) &&
 2202                             (!is11n || !checkmcs(src->ucastrate)))
 2203                                 return EINVAL;
 2204                         changed++;
 2205                 }
 2206                 if (src->mcastrate != dst->mcastrate) {
 2207                         if (!checkrate(rs, src->mcastrate) &&
 2208                             (!is11n || !checkmcs(src->mcastrate)))
 2209                                 return EINVAL;
 2210                         changed++;
 2211                 }
 2212                 if (src->mgmtrate != dst->mgmtrate) {
 2213                         if (!checkrate(rs, src->mgmtrate) &&
 2214                             (!is11n || !checkmcs(src->mgmtrate)))
 2215                                 return EINVAL;
 2216                         changed++;
 2217                 }
 2218                 if (src->maxretry != dst->maxretry)     /* NB: no bounds */
 2219                         changed++;
 2220         }
 2221         if (changed) {
 2222                 /*
 2223                  * Copy new parameters in place and notify the
 2224                  * driver so it can push state to the device.
 2225                  */
 2226                 for (mode = IEEE80211_MODE_11A; mode < nmodes; mode++) {
 2227                         if (isset(ic->ic_modecaps, mode))
 2228                                 vap->iv_txparms[mode] = parms.params[mode];
 2229                 }
 2230                 /* XXX could be more intelligent,
 2231                    e.g. don't reset if setting not being used */
 2232                 return ENETRESET;
 2233         }
 2234         return 0;
 2235 }
 2236 
 2237 /*
 2238  * Application Information Element support.
 2239  */
 2240 static int
 2241 setappie(struct ieee80211_appie **aie, const struct ieee80211req *ireq)
 2242 {
 2243         struct ieee80211_appie *app = *aie;
 2244         struct ieee80211_appie *napp;
 2245         int error;
 2246 
 2247         if (ireq->i_len == 0) {         /* delete any existing ie */
 2248                 if (app != NULL) {
 2249                         *aie = NULL;    /* XXX racey */
 2250                         IEEE80211_FREE(app, M_80211_NODE_IE);
 2251                 }
 2252                 return 0;
 2253         }
 2254         if (!(2 <= ireq->i_len && ireq->i_len <= IEEE80211_MAX_APPIE))
 2255                 return EINVAL;
 2256         /*
 2257          * Allocate a new appie structure and copy in the user data.
 2258          * When done swap in the new structure.  Note that we do not
 2259          * guard against users holding a ref to the old structure;
 2260          * this must be handled outside this code.
 2261          *
 2262          * XXX bad bad bad
 2263          */
 2264         napp = (struct ieee80211_appie *) IEEE80211_MALLOC(
 2265             sizeof(struct ieee80211_appie) + ireq->i_len, M_80211_NODE_IE,
 2266             IEEE80211_M_NOWAIT);
 2267         if (napp == NULL)
 2268                 return ENOMEM;
 2269         /* XXX holding ic lock */
 2270         error = copyin(ireq->i_data, napp->ie_data, ireq->i_len);
 2271         if (error) {
 2272                 IEEE80211_FREE(napp, M_80211_NODE_IE);
 2273                 return error;
 2274         }
 2275         napp->ie_len = ireq->i_len;
 2276         *aie = napp;
 2277         if (app != NULL)
 2278                 IEEE80211_FREE(app, M_80211_NODE_IE);
 2279         return 0;
 2280 }
 2281 
 2282 static void
 2283 setwparsnie(struct ieee80211vap *vap, uint8_t *ie, int space)
 2284 {
 2285         /* validate data is present as best we can */
 2286         if (space == 0 || 2+ie[1] > space)
 2287                 return;
 2288         if (ie[0] == IEEE80211_ELEMID_VENDOR)
 2289                 vap->iv_wpa_ie = ie;
 2290         else if (ie[0] == IEEE80211_ELEMID_RSN)
 2291                 vap->iv_rsn_ie = ie;
 2292 }
 2293 
 2294 static int
 2295 ieee80211_ioctl_setappie_locked(struct ieee80211vap *vap,
 2296         const struct ieee80211req *ireq, int fc0)
 2297 {
 2298         int error;
 2299 
 2300         IEEE80211_LOCK_ASSERT(vap->iv_ic);
 2301 
 2302         switch (fc0 & IEEE80211_FC0_SUBTYPE_MASK) {
 2303         case IEEE80211_FC0_SUBTYPE_BEACON:
 2304                 if (vap->iv_opmode != IEEE80211_M_HOSTAP &&
 2305                     vap->iv_opmode != IEEE80211_M_IBSS) {
 2306                         error = EINVAL;
 2307                         break;
 2308                 }
 2309                 error = setappie(&vap->iv_appie_beacon, ireq);
 2310                 if (error == 0)
 2311                         ieee80211_beacon_notify(vap, IEEE80211_BEACON_APPIE);
 2312                 break;
 2313         case IEEE80211_FC0_SUBTYPE_PROBE_RESP:
 2314                 error = setappie(&vap->iv_appie_proberesp, ireq);
 2315                 break;
 2316         case IEEE80211_FC0_SUBTYPE_ASSOC_RESP:
 2317                 if (vap->iv_opmode == IEEE80211_M_HOSTAP)
 2318                         error = setappie(&vap->iv_appie_assocresp, ireq);
 2319                 else
 2320                         error = EINVAL;
 2321                 break;
 2322         case IEEE80211_FC0_SUBTYPE_PROBE_REQ:
 2323                 error = setappie(&vap->iv_appie_probereq, ireq);
 2324                 break;
 2325         case IEEE80211_FC0_SUBTYPE_ASSOC_REQ:
 2326                 if (vap->iv_opmode == IEEE80211_M_STA)
 2327                         error = setappie(&vap->iv_appie_assocreq, ireq);
 2328                 else
 2329                         error = EINVAL;
 2330                 break;
 2331         case (IEEE80211_APPIE_WPA & IEEE80211_FC0_SUBTYPE_MASK):
 2332                 error = setappie(&vap->iv_appie_wpa, ireq);
 2333                 if (error == 0) {
 2334                         /*
 2335                          * Must split single blob of data into separate
 2336                          * WPA and RSN ie's because they go in different
 2337                          * locations in the mgt frames.
 2338                          * XXX use IEEE80211_IOC_WPA2 so user code does split
 2339                          */
 2340                         vap->iv_wpa_ie = NULL;
 2341                         vap->iv_rsn_ie = NULL;
 2342                         if (vap->iv_appie_wpa != NULL) {
 2343                                 struct ieee80211_appie *appie =
 2344                                     vap->iv_appie_wpa;
 2345                                 uint8_t *data = appie->ie_data;
 2346 
 2347                                 /* XXX ie length validate is painful, cheat */
 2348                                 setwparsnie(vap, data, appie->ie_len);
 2349                                 setwparsnie(vap, data + 2 + data[1],
 2350                                     appie->ie_len - (2 + data[1]));
 2351                         }
 2352                         if (vap->iv_opmode == IEEE80211_M_HOSTAP ||
 2353                             vap->iv_opmode == IEEE80211_M_IBSS) {
 2354                                 /*
 2355                                  * Must rebuild beacon frame as the update
 2356                                  * mechanism doesn't handle WPA/RSN ie's.
 2357                                  * Could extend it but it doesn't normally
 2358                                  * change; this is just to deal with hostapd
 2359                                  * plumbing the ie after the interface is up.
 2360                                  */
 2361                                 error = ENETRESET;
 2362                         }
 2363                 }
 2364                 break;
 2365         default:
 2366                 error = EINVAL;
 2367                 break;
 2368         }
 2369         return error;
 2370 }
 2371 
 2372 static int
 2373 ieee80211_ioctl_setappie(struct ieee80211vap *vap,
 2374         const struct ieee80211req *ireq)
 2375 {
 2376         struct ieee80211com *ic = vap->iv_ic;
 2377         int error;
 2378         uint8_t fc0;
 2379 
 2380         fc0 = ireq->i_val & 0xff;
 2381         if ((fc0 & IEEE80211_FC0_TYPE_MASK) != IEEE80211_FC0_TYPE_MGT)
 2382                 return EINVAL;
 2383         /* NB: could check iv_opmode and reject but hardly worth the effort */
 2384         IEEE80211_LOCK(ic);
 2385         error = ieee80211_ioctl_setappie_locked(vap, ireq, fc0);
 2386         IEEE80211_UNLOCK(ic);
 2387         return error;
 2388 }
 2389 
 2390 static int
 2391 ieee80211_ioctl_chanswitch(struct ieee80211vap *vap, struct ieee80211req *ireq)
 2392 {
 2393         struct ieee80211com *ic = vap->iv_ic;
 2394         struct ieee80211_chanswitch_req csr;
 2395         struct ieee80211_channel *c;
 2396         int error;
 2397 
 2398         if (ireq->i_len != sizeof(csr))
 2399                 return EINVAL;
 2400         error = copyin(ireq->i_data, &csr, sizeof(csr));
 2401         if (error != 0)
 2402                 return error;
 2403         /* XXX adhoc mode not supported */
 2404         if (vap->iv_opmode != IEEE80211_M_HOSTAP ||
 2405             (vap->iv_flags & IEEE80211_F_DOTH) == 0)
 2406                 return EOPNOTSUPP;
 2407         c = ieee80211_find_channel(ic,
 2408             csr.csa_chan.ic_freq, csr.csa_chan.ic_flags);
 2409         if (c == NULL)
 2410                 return ENOENT;
 2411         IEEE80211_LOCK(ic);
 2412         if ((ic->ic_flags & IEEE80211_F_CSAPENDING) == 0)
 2413                 ieee80211_csa_startswitch(ic, c, csr.csa_mode, csr.csa_count);
 2414         else if (csr.csa_count == 0)
 2415                 ieee80211_csa_cancelswitch(ic);
 2416         else
 2417                 error = EBUSY;
 2418         IEEE80211_UNLOCK(ic);
 2419         return error;
 2420 }
 2421 
 2422 static int
 2423 ieee80211_scanreq(struct ieee80211vap *vap, struct ieee80211_scan_req *sr)
 2424 {
 2425 #define IEEE80211_IOC_SCAN_FLAGS \
 2426         (IEEE80211_IOC_SCAN_NOPICK | IEEE80211_IOC_SCAN_ACTIVE | \
 2427          IEEE80211_IOC_SCAN_PICK1ST | IEEE80211_IOC_SCAN_BGSCAN | \
 2428          IEEE80211_IOC_SCAN_ONCE | IEEE80211_IOC_SCAN_NOBCAST | \
 2429          IEEE80211_IOC_SCAN_NOJOIN | IEEE80211_IOC_SCAN_FLUSH | \
 2430          IEEE80211_IOC_SCAN_CHECK)
 2431         struct ieee80211com *ic = vap->iv_ic;
 2432         int error, i;
 2433 
 2434         /* convert duration */
 2435         if (sr->sr_duration == IEEE80211_IOC_SCAN_FOREVER)
 2436                 sr->sr_duration = IEEE80211_SCAN_FOREVER;
 2437         else {
 2438                 if (sr->sr_duration < IEEE80211_IOC_SCAN_DURATION_MIN ||
 2439                     sr->sr_duration > IEEE80211_IOC_SCAN_DURATION_MAX)
 2440                         return EINVAL;
 2441                 sr->sr_duration = msecs_to_ticks(sr->sr_duration);
 2442                 if (sr->sr_duration < 1)
 2443                         sr->sr_duration = 1;
 2444         }
 2445         /* convert min/max channel dwell */
 2446         if (sr->sr_mindwell != 0) {
 2447                 sr->sr_mindwell = msecs_to_ticks(sr->sr_mindwell);
 2448                 if (sr->sr_mindwell < 1)
 2449                         sr->sr_mindwell = 1;
 2450         }
 2451         if (sr->sr_maxdwell != 0) {
 2452                 sr->sr_maxdwell = msecs_to_ticks(sr->sr_maxdwell);
 2453                 if (sr->sr_maxdwell < 1)
 2454                         sr->sr_maxdwell = 1;
 2455         }
 2456         /* NB: silently reduce ssid count to what is supported */
 2457         if (sr->sr_nssid > IEEE80211_SCAN_MAX_SSID)
 2458                 sr->sr_nssid = IEEE80211_SCAN_MAX_SSID;
 2459         for (i = 0; i < sr->sr_nssid; i++)
 2460                 if (sr->sr_ssid[i].len > IEEE80211_NWID_LEN)
 2461                         return EINVAL;
 2462         /* cleanse flags just in case, could reject if invalid flags */
 2463         sr->sr_flags &= IEEE80211_IOC_SCAN_FLAGS;
 2464         /*
 2465          * Add an implicit NOPICK if the vap is not marked UP.  This
 2466          * allows applications to scan without joining a bss (or picking
 2467          * a channel and setting up a bss) and without forcing manual
 2468          * roaming mode--you just need to mark the parent device UP.
 2469          */
 2470         if ((vap->iv_ifp->if_flags & IFF_UP) == 0)
 2471                 sr->sr_flags |= IEEE80211_IOC_SCAN_NOPICK;
 2472 
 2473         IEEE80211_DPRINTF(vap, IEEE80211_MSG_SCAN,
 2474             "%s: flags 0x%x%s duration 0x%x mindwell %u maxdwell %u nssid %d\n",
 2475             __func__, sr->sr_flags,
 2476             (vap->iv_ifp->if_flags & IFF_UP) == 0 ? " (!IFF_UP)" : "",
 2477             sr->sr_duration, sr->sr_mindwell, sr->sr_maxdwell, sr->sr_nssid);
 2478         /*
 2479          * If we are in INIT state then the driver has never had a chance
 2480          * to setup hardware state to do a scan; we must use the state
 2481          * machine to get us up to the SCAN state but once we reach SCAN
 2482          * state we then want to use the supplied params.  Stash the
 2483          * parameters in the vap and mark IEEE80211_FEXT_SCANREQ; the
 2484          * state machines will recognize this and use the stashed params
 2485          * to issue the scan request.
 2486          *
 2487          * Otherwise just invoke the scan machinery directly.
 2488          */
 2489         IEEE80211_LOCK(ic);
 2490         if (ic->ic_nrunning == 0) {
 2491                 IEEE80211_UNLOCK(ic);
 2492                 return ENXIO;
 2493         }
 2494 
 2495         if (vap->iv_state == IEEE80211_S_INIT) {
 2496                 /* NB: clobbers previous settings */
 2497                 vap->iv_scanreq_flags = sr->sr_flags;
 2498                 vap->iv_scanreq_duration = sr->sr_duration;
 2499                 vap->iv_scanreq_nssid = sr->sr_nssid;
 2500                 for (i = 0; i < sr->sr_nssid; i++) {
 2501                         vap->iv_scanreq_ssid[i].len = sr->sr_ssid[i].len;
 2502                         memcpy(vap->iv_scanreq_ssid[i].ssid,
 2503                             sr->sr_ssid[i].ssid, sr->sr_ssid[i].len);
 2504                 }
 2505                 vap->iv_flags_ext |= IEEE80211_FEXT_SCANREQ;
 2506                 IEEE80211_UNLOCK(ic);
 2507                 ieee80211_new_state(vap, IEEE80211_S_SCAN, 0);
 2508         } else {
 2509                 vap->iv_flags_ext &= ~IEEE80211_FEXT_SCANREQ;
 2510                 IEEE80211_UNLOCK(ic);
 2511                 if (sr->sr_flags & IEEE80211_IOC_SCAN_CHECK) {
 2512                         error = ieee80211_check_scan(vap, sr->sr_flags,
 2513                             sr->sr_duration, sr->sr_mindwell, sr->sr_maxdwell,
 2514                             sr->sr_nssid,
 2515                             /* NB: cheat, we assume structures are compatible */
 2516                             (const struct ieee80211_scan_ssid *) &sr->sr_ssid[0]);
 2517                 } else {
 2518                         error = ieee80211_start_scan(vap, sr->sr_flags,
 2519                             sr->sr_duration, sr->sr_mindwell, sr->sr_maxdwell,
 2520                             sr->sr_nssid,
 2521                             /* NB: cheat, we assume structures are compatible */
 2522                             (const struct ieee80211_scan_ssid *) &sr->sr_ssid[0]);
 2523                 }
 2524                 if (error == 0)
 2525                         return EINPROGRESS;
 2526         }
 2527         return 0;
 2528 #undef IEEE80211_IOC_SCAN_FLAGS
 2529 }
 2530 
 2531 static int
 2532 ieee80211_ioctl_scanreq(struct ieee80211vap *vap, struct ieee80211req *ireq)
 2533 {
 2534         struct ieee80211_scan_req *sr;
 2535         int error;
 2536 
 2537         if (ireq->i_len != sizeof(*sr))
 2538                 return EINVAL;
 2539         sr = IEEE80211_MALLOC(sizeof(*sr), M_TEMP,
 2540              IEEE80211_M_NOWAIT | IEEE80211_M_ZERO);
 2541         if (sr == NULL)
 2542                 return ENOMEM;
 2543         error = copyin(ireq->i_data, sr, sizeof(*sr));
 2544         if (error != 0)
 2545                 goto bad;
 2546         error = ieee80211_scanreq(vap, sr);
 2547 bad:
 2548         IEEE80211_FREE(sr, M_TEMP);
 2549         return error;
 2550 }
 2551 
 2552 static int
 2553 ieee80211_ioctl_setstavlan(struct ieee80211vap *vap, struct ieee80211req *ireq)
 2554 {
 2555         struct ieee80211_node *ni;
 2556         struct ieee80211req_sta_vlan vlan;
 2557         int error;
 2558 
 2559         if (ireq->i_len != sizeof(vlan))
 2560                 return EINVAL;
 2561         error = copyin(ireq->i_data, &vlan, sizeof(vlan));
 2562         if (error != 0)
 2563                 return error;
 2564         if (!IEEE80211_ADDR_EQ(vlan.sv_macaddr, zerobssid)) {
 2565                 ni = ieee80211_find_vap_node(&vap->iv_ic->ic_sta, vap,
 2566                     vlan.sv_macaddr);
 2567                 if (ni == NULL)
 2568                         return ENOENT;
 2569         } else
 2570                 ni = ieee80211_ref_node(vap->iv_bss);
 2571         ni->ni_vlan = vlan.sv_vlan;
 2572         ieee80211_free_node(ni);
 2573         return error;
 2574 }
 2575 
 2576 static int
 2577 isvap11g(const struct ieee80211vap *vap)
 2578 {
 2579         const struct ieee80211_node *bss = vap->iv_bss;
 2580         return bss->ni_chan != IEEE80211_CHAN_ANYC &&
 2581             IEEE80211_IS_CHAN_ANYG(bss->ni_chan);
 2582 }
 2583 
 2584 static int
 2585 isvapht(const struct ieee80211vap *vap)
 2586 {
 2587         const struct ieee80211_node *bss = vap->iv_bss;
 2588         return bss->ni_chan != IEEE80211_CHAN_ANYC &&
 2589             IEEE80211_IS_CHAN_HT(bss->ni_chan);
 2590 }
 2591 
 2592 /*
 2593  * Dummy ioctl set handler so the linker set is defined.
 2594  */
 2595 static int
 2596 dummy_ioctl_set(struct ieee80211vap *vap, struct ieee80211req *ireq)
 2597 {
 2598         return ENOSYS;
 2599 }
 2600 IEEE80211_IOCTL_SET(dummy, dummy_ioctl_set);
 2601 
 2602 static int
 2603 ieee80211_ioctl_setdefault(struct ieee80211vap *vap, struct ieee80211req *ireq)
 2604 {
 2605         ieee80211_ioctl_setfunc * const *set;
 2606         int error;
 2607 
 2608         SET_FOREACH(set, ieee80211_ioctl_setset) {
 2609                 error = (*set)(vap, ireq);
 2610                 if (error != ENOSYS)
 2611                         return error;
 2612         }
 2613         return EINVAL;
 2614 }
 2615 
 2616 static int
 2617 ieee80211_ioctl_set80211(struct ieee80211vap *vap, u_long cmd, struct ieee80211req *ireq)
 2618 {
 2619         struct ieee80211com *ic = vap->iv_ic;
 2620         int error;
 2621         const struct ieee80211_authenticator *auth;
 2622         uint8_t tmpkey[IEEE80211_KEYBUF_SIZE];
 2623         char tmpssid[IEEE80211_NWID_LEN];
 2624         uint8_t tmpbssid[IEEE80211_ADDR_LEN];
 2625         struct ieee80211_key *k;
 2626         u_int kid;
 2627         uint32_t flags;
 2628 
 2629         error = 0;
 2630         switch (ireq->i_type) {
 2631         case IEEE80211_IOC_SSID:
 2632                 if (ireq->i_val != 0 ||
 2633                     ireq->i_len > IEEE80211_NWID_LEN)
 2634                         return EINVAL;
 2635                 error = copyin(ireq->i_data, tmpssid, ireq->i_len);
 2636                 if (error)
 2637                         break;
 2638                 memset(vap->iv_des_ssid[0].ssid, 0, IEEE80211_NWID_LEN);
 2639                 vap->iv_des_ssid[0].len = ireq->i_len;
 2640                 memcpy(vap->iv_des_ssid[0].ssid, tmpssid, ireq->i_len);
 2641                 vap->iv_des_nssid = (ireq->i_len > 0);
 2642                 error = ENETRESET;
 2643                 break;
 2644         case IEEE80211_IOC_WEP:
 2645                 switch (ireq->i_val) {
 2646                 case IEEE80211_WEP_OFF:
 2647                         vap->iv_flags &= ~IEEE80211_F_PRIVACY;
 2648                         vap->iv_flags &= ~IEEE80211_F_DROPUNENC;
 2649                         break;
 2650                 case IEEE80211_WEP_ON:
 2651                         vap->iv_flags |= IEEE80211_F_PRIVACY;
 2652                         vap->iv_flags |= IEEE80211_F_DROPUNENC;
 2653                         break;
 2654                 case IEEE80211_WEP_MIXED:
 2655                         vap->iv_flags |= IEEE80211_F_PRIVACY;
 2656                         vap->iv_flags &= ~IEEE80211_F_DROPUNENC;
 2657                         break;
 2658                 }
 2659                 error = ENETRESET;
 2660                 break;
 2661         case IEEE80211_IOC_WEPKEY:
 2662                 kid = (u_int) ireq->i_val;
 2663                 if (kid >= IEEE80211_WEP_NKID)
 2664                         return EINVAL;
 2665                 k = &vap->iv_nw_keys[kid];
 2666                 if (ireq->i_len == 0) {
 2667                         /* zero-len =>'s delete any existing key */
 2668                         (void) ieee80211_crypto_delkey(vap, k);
 2669                         break;
 2670                 }
 2671                 if (ireq->i_len > sizeof(tmpkey))
 2672                         return EINVAL;
 2673                 memset(tmpkey, 0, sizeof(tmpkey));
 2674                 error = copyin(ireq->i_data, tmpkey, ireq->i_len);
 2675                 if (error)
 2676                         break;
 2677                 ieee80211_key_update_begin(vap);
 2678                 k->wk_keyix = kid;      /* NB: force fixed key id */
 2679                 if (ieee80211_crypto_newkey(vap, IEEE80211_CIPHER_WEP,
 2680                     IEEE80211_KEY_XMIT | IEEE80211_KEY_RECV, k)) {
 2681                         k->wk_keylen = ireq->i_len;
 2682                         memcpy(k->wk_key, tmpkey, sizeof(tmpkey));
 2683                         IEEE80211_ADDR_COPY(k->wk_macaddr, vap->iv_myaddr);
 2684                         if  (!ieee80211_crypto_setkey(vap, k))
 2685                                 error = EINVAL;
 2686                 } else
 2687                         error = EINVAL;
 2688                 ieee80211_key_update_end(vap);
 2689                 break;
 2690         case IEEE80211_IOC_WEPTXKEY:
 2691                 kid = (u_int) ireq->i_val;
 2692                 if (kid >= IEEE80211_WEP_NKID &&
 2693                     (uint16_t) kid != IEEE80211_KEYIX_NONE)
 2694                         return EINVAL;
 2695                 vap->iv_def_txkey = kid;
 2696                 break;
 2697         case IEEE80211_IOC_AUTHMODE:
 2698                 switch (ireq->i_val) {
 2699                 case IEEE80211_AUTH_WPA:
 2700                 case IEEE80211_AUTH_8021X:      /* 802.1x */
 2701                 case IEEE80211_AUTH_OPEN:       /* open */
 2702                 case IEEE80211_AUTH_SHARED:     /* shared-key */
 2703                 case IEEE80211_AUTH_AUTO:       /* auto */
 2704                         auth = ieee80211_authenticator_get(ireq->i_val);
 2705                         if (auth == NULL)
 2706                                 return EINVAL;
 2707                         break;
 2708                 default:
 2709                         return EINVAL;
 2710                 }
 2711                 switch (ireq->i_val) {
 2712                 case IEEE80211_AUTH_WPA:        /* WPA w/ 802.1x */
 2713                         vap->iv_flags |= IEEE80211_F_PRIVACY;
 2714                         ireq->i_val = IEEE80211_AUTH_8021X;
 2715                         break;
 2716                 case IEEE80211_AUTH_OPEN:       /* open */
 2717                         vap->iv_flags &= ~(IEEE80211_F_WPA|IEEE80211_F_PRIVACY);
 2718                         break;
 2719                 case IEEE80211_AUTH_SHARED:     /* shared-key */
 2720                 case IEEE80211_AUTH_8021X:      /* 802.1x */
 2721                         vap->iv_flags &= ~IEEE80211_F_WPA;
 2722                         /* both require a key so mark the PRIVACY capability */
 2723                         vap->iv_flags |= IEEE80211_F_PRIVACY;
 2724                         break;
 2725                 case IEEE80211_AUTH_AUTO:       /* auto */
 2726                         vap->iv_flags &= ~IEEE80211_F_WPA;
 2727                         /* XXX PRIVACY handling? */
 2728                         /* XXX what's the right way to do this? */
 2729                         break;
 2730                 }
 2731                 /* NB: authenticator attach/detach happens on state change */
 2732                 vap->iv_bss->ni_authmode = ireq->i_val;
 2733                 /* XXX mixed/mode/usage? */
 2734                 vap->iv_auth = auth;
 2735                 error = ENETRESET;
 2736                 break;
 2737         case IEEE80211_IOC_CHANNEL:
 2738                 error = ieee80211_ioctl_setchannel(vap, ireq);
 2739                 break;
 2740         case IEEE80211_IOC_POWERSAVE:
 2741                 switch (ireq->i_val) {
 2742                 case IEEE80211_POWERSAVE_OFF:
 2743                         if (vap->iv_flags & IEEE80211_F_PMGTON) {
 2744                                 ieee80211_syncflag(vap, -IEEE80211_F_PMGTON);
 2745                                 error = ERESTART;
 2746                         }
 2747                         break;
 2748                 case IEEE80211_POWERSAVE_ON:
 2749                         if ((vap->iv_caps & IEEE80211_C_PMGT) == 0)
 2750                                 error = EOPNOTSUPP;
 2751                         else if ((vap->iv_flags & IEEE80211_F_PMGTON) == 0) {
 2752                                 ieee80211_syncflag(vap, IEEE80211_F_PMGTON);
 2753                                 error = ERESTART;
 2754                         }
 2755                         break;
 2756                 default:
 2757                         error = EINVAL;
 2758                         break;
 2759                 }
 2760                 break;
 2761         case IEEE80211_IOC_POWERSAVESLEEP:
 2762                 if (ireq->i_val < 0)
 2763                         return EINVAL;
 2764                 ic->ic_lintval = ireq->i_val;
 2765                 error = ERESTART;
 2766                 break;
 2767         case IEEE80211_IOC_RTSTHRESHOLD:
 2768                 if (!(IEEE80211_RTS_MIN <= ireq->i_val &&
 2769                       ireq->i_val <= IEEE80211_RTS_MAX))
 2770                         return EINVAL;
 2771                 vap->iv_rtsthreshold = ireq->i_val;
 2772                 error = ERESTART;
 2773                 break;
 2774         case IEEE80211_IOC_PROTMODE:
 2775                 if (ireq->i_val > IEEE80211_PROT_RTSCTS)
 2776                         return EINVAL;
 2777                 ic->ic_protmode = (enum ieee80211_protmode)ireq->i_val;
 2778                 /* NB: if not operating in 11g this can wait */
 2779                 if (ic->ic_bsschan != IEEE80211_CHAN_ANYC &&
 2780                     IEEE80211_IS_CHAN_ANYG(ic->ic_bsschan))
 2781                         error = ERESTART;
 2782                 break;
 2783         case IEEE80211_IOC_TXPOWER:
 2784                 if ((ic->ic_caps & IEEE80211_C_TXPMGT) == 0)
 2785                         return EOPNOTSUPP;
 2786                 if (!(IEEE80211_TXPOWER_MIN <= ireq->i_val &&
 2787                       ireq->i_val <= IEEE80211_TXPOWER_MAX))
 2788                         return EINVAL;
 2789                 ic->ic_txpowlimit = ireq->i_val;
 2790                 error = ERESTART;
 2791                 break;
 2792         case IEEE80211_IOC_ROAMING:
 2793                 if (!(IEEE80211_ROAMING_DEVICE <= ireq->i_val &&
 2794                     ireq->i_val <= IEEE80211_ROAMING_MANUAL))
 2795                         return EINVAL;
 2796                 vap->iv_roaming = (enum ieee80211_roamingmode)ireq->i_val;
 2797                 /* XXXX reset? */
 2798                 break;
 2799         case IEEE80211_IOC_PRIVACY:
 2800                 if (ireq->i_val) {
 2801                         /* XXX check for key state? */
 2802                         vap->iv_flags |= IEEE80211_F_PRIVACY;
 2803                 } else
 2804                         vap->iv_flags &= ~IEEE80211_F_PRIVACY;
 2805                 /* XXX ERESTART? */
 2806                 break;
 2807         case IEEE80211_IOC_DROPUNENCRYPTED:
 2808                 if (ireq->i_val)
 2809                         vap->iv_flags |= IEEE80211_F_DROPUNENC;
 2810                 else
 2811                         vap->iv_flags &= ~IEEE80211_F_DROPUNENC;
 2812                 /* XXX ERESTART? */
 2813                 break;
 2814         case IEEE80211_IOC_WPAKEY:
 2815                 error = ieee80211_ioctl_setkey(vap, ireq);
 2816                 break;
 2817         case IEEE80211_IOC_DELKEY:
 2818                 error = ieee80211_ioctl_delkey(vap, ireq);
 2819                 break;
 2820         case IEEE80211_IOC_MLME:
 2821                 error = ieee80211_ioctl_setmlme(vap, ireq);
 2822                 break;
 2823         case IEEE80211_IOC_COUNTERMEASURES:
 2824                 if (ireq->i_val) {
 2825                         if ((vap->iv_flags & IEEE80211_F_WPA) == 0)
 2826                                 return EOPNOTSUPP;
 2827                         vap->iv_flags |= IEEE80211_F_COUNTERM;
 2828                 } else
 2829                         vap->iv_flags &= ~IEEE80211_F_COUNTERM;
 2830                 /* XXX ERESTART? */
 2831                 break;
 2832         case IEEE80211_IOC_WPA:
 2833                 if (ireq->i_val > 3)
 2834                         return EINVAL;
 2835                 /* XXX verify ciphers available */
 2836                 flags = vap->iv_flags & ~IEEE80211_F_WPA;
 2837                 switch (ireq->i_val) {
 2838                 case 0:
 2839                         /* wpa_supplicant calls this to clear the WPA config */
 2840                         break;
 2841                 case 1:
 2842                         if (!(vap->iv_caps & IEEE80211_C_WPA1))
 2843                                 return EOPNOTSUPP;
 2844                         flags |= IEEE80211_F_WPA1;
 2845                         break;
 2846                 case 2:
 2847                         if (!(vap->iv_caps & IEEE80211_C_WPA2))
 2848                                 return EOPNOTSUPP;
 2849                         flags |= IEEE80211_F_WPA2;
 2850                         break;
 2851                 case 3:
 2852                         if ((vap->iv_caps & IEEE80211_C_WPA) != IEEE80211_C_WPA)
 2853                                 return EOPNOTSUPP;
 2854                         flags |= IEEE80211_F_WPA1 | IEEE80211_F_WPA2;
 2855                         break;
 2856                 default:        /*  Can't set any -> error */
 2857                         return EOPNOTSUPP;
 2858                 }
 2859                 vap->iv_flags = flags;
 2860                 error = ERESTART;       /* NB: can change beacon frame */
 2861                 break;
 2862         case IEEE80211_IOC_WME:
 2863                 if (ireq->i_val) {
 2864                         if ((vap->iv_caps & IEEE80211_C_WME) == 0)
 2865                                 return EOPNOTSUPP;
 2866                         ieee80211_syncflag(vap, IEEE80211_F_WME);
 2867                 } else
 2868                         ieee80211_syncflag(vap, -IEEE80211_F_WME);
 2869                 error = ERESTART;       /* NB: can change beacon frame */
 2870                 break;
 2871         case IEEE80211_IOC_HIDESSID:
 2872                 if (ireq->i_val)
 2873                         vap->iv_flags |= IEEE80211_F_HIDESSID;
 2874                 else
 2875                         vap->iv_flags &= ~IEEE80211_F_HIDESSID;
 2876                 error = ERESTART;               /* XXX ENETRESET? */
 2877                 break;
 2878         case IEEE80211_IOC_APBRIDGE:
 2879                 if (ireq->i_val == 0)
 2880                         vap->iv_flags |= IEEE80211_F_NOBRIDGE;
 2881                 else
 2882                         vap->iv_flags &= ~IEEE80211_F_NOBRIDGE;
 2883                 break;
 2884         case IEEE80211_IOC_BSSID:
 2885                 if (ireq->i_len != sizeof(tmpbssid))
 2886                         return EINVAL;
 2887                 error = copyin(ireq->i_data, tmpbssid, ireq->i_len);
 2888                 if (error)
 2889                         break;
 2890                 IEEE80211_ADDR_COPY(vap->iv_des_bssid, tmpbssid);
 2891                 if (IEEE80211_ADDR_EQ(vap->iv_des_bssid, zerobssid))
 2892                         vap->iv_flags &= ~IEEE80211_F_DESBSSID;
 2893                 else
 2894                         vap->iv_flags |= IEEE80211_F_DESBSSID;
 2895                 error = ENETRESET;
 2896                 break;
 2897         case IEEE80211_IOC_CHANLIST:
 2898                 error = ieee80211_ioctl_setchanlist(vap, ireq);
 2899                 break;
 2900 #define OLD_IEEE80211_IOC_SCAN_REQ      23
 2901 #ifdef OLD_IEEE80211_IOC_SCAN_REQ
 2902         case OLD_IEEE80211_IOC_SCAN_REQ:
 2903                 IEEE80211_DPRINTF(vap, IEEE80211_MSG_SCAN,
 2904                         "%s: active scan request\n", __func__);
 2905                 /*
 2906                  * If we are in INIT state then the driver has never
 2907                  * had a chance to setup hardware state to do a scan;
 2908                  * use the state machine to get us up the SCAN state.
 2909                  * Otherwise just invoke the scan machinery to start
 2910                  * a one-time scan.
 2911                  */
 2912                 if (vap->iv_state == IEEE80211_S_INIT)
 2913                         ieee80211_new_state(vap, IEEE80211_S_SCAN, 0);
 2914                 else
 2915                         (void) ieee80211_start_scan(vap,
 2916                                 IEEE80211_SCAN_ACTIVE |
 2917                                 IEEE80211_SCAN_NOPICK |
 2918                                 IEEE80211_SCAN_ONCE,
 2919                                 IEEE80211_SCAN_FOREVER, 0, 0,
 2920                                 /* XXX use ioctl params */
 2921                                 vap->iv_des_nssid, vap->iv_des_ssid);
 2922                 break;
 2923 #endif /* OLD_IEEE80211_IOC_SCAN_REQ */
 2924         case IEEE80211_IOC_SCAN_REQ:
 2925                 error = ieee80211_ioctl_scanreq(vap, ireq);
 2926                 break;
 2927         case IEEE80211_IOC_SCAN_CANCEL:
 2928                 IEEE80211_DPRINTF(vap, IEEE80211_MSG_SCAN,
 2929                     "%s: cancel scan\n", __func__);
 2930                 ieee80211_cancel_scan(vap);
 2931                 break;
 2932         case IEEE80211_IOC_HTCONF:
 2933                 if (ireq->i_val & 1)
 2934                         ieee80211_syncflag_ht(vap, IEEE80211_FHT_HT);
 2935                 else
 2936                         ieee80211_syncflag_ht(vap, -IEEE80211_FHT_HT);
 2937                 if (ireq->i_val & 2)
 2938                         ieee80211_syncflag_ht(vap, IEEE80211_FHT_USEHT40);
 2939                 else
 2940                         ieee80211_syncflag_ht(vap, -IEEE80211_FHT_USEHT40);
 2941                 error = ENETRESET;
 2942                 break;
 2943         case IEEE80211_IOC_ADDMAC:
 2944         case IEEE80211_IOC_DELMAC:
 2945                 error = ieee80211_ioctl_macmac(vap, ireq);
 2946                 break;
 2947         case IEEE80211_IOC_MACCMD:
 2948                 error = ieee80211_ioctl_setmaccmd(vap, ireq);
 2949                 break;
 2950         case IEEE80211_IOC_STA_STATS:
 2951                 error = ieee80211_ioctl_setstastats(vap, ireq);
 2952                 break;
 2953         case IEEE80211_IOC_STA_TXPOW:
 2954                 error = ieee80211_ioctl_setstatxpow(vap, ireq);
 2955                 break;
 2956         case IEEE80211_IOC_WME_CWMIN:           /* WME: CWmin */
 2957         case IEEE80211_IOC_WME_CWMAX:           /* WME: CWmax */
 2958         case IEEE80211_IOC_WME_AIFS:            /* WME: AIFS */
 2959         case IEEE80211_IOC_WME_TXOPLIMIT:       /* WME: txops limit */
 2960         case IEEE80211_IOC_WME_ACM:             /* WME: ACM (bss only) */
 2961         case IEEE80211_IOC_WME_ACKPOLICY:       /* WME: ACK policy (!bss only) */
 2962                 error = ieee80211_ioctl_setwmeparam(vap, ireq);
 2963                 break;
 2964         case IEEE80211_IOC_DTIM_PERIOD:
 2965                 if (vap->iv_opmode != IEEE80211_M_HOSTAP &&
 2966                     vap->iv_opmode != IEEE80211_M_MBSS &&
 2967                     vap->iv_opmode != IEEE80211_M_IBSS)
 2968                         return EINVAL;
 2969                 if (IEEE80211_DTIM_MIN <= ireq->i_val &&
 2970                     ireq->i_val <= IEEE80211_DTIM_MAX) {
 2971                         vap->iv_dtim_period = ireq->i_val;
 2972                         error = ENETRESET;              /* requires restart */
 2973                 } else
 2974                         error = EINVAL;
 2975                 break;
 2976         case IEEE80211_IOC_BEACON_INTERVAL:
 2977                 if (vap->iv_opmode != IEEE80211_M_HOSTAP &&
 2978                     vap->iv_opmode != IEEE80211_M_MBSS &&
 2979                     vap->iv_opmode != IEEE80211_M_IBSS)
 2980                         return EINVAL;
 2981                 if (IEEE80211_BINTVAL_MIN <= ireq->i_val &&
 2982                     ireq->i_val <= IEEE80211_BINTVAL_MAX) {
 2983                         ic->ic_bintval = ireq->i_val;
 2984                         error = ENETRESET;              /* requires restart */
 2985                 } else
 2986                         error = EINVAL;
 2987                 break;
 2988         case IEEE80211_IOC_PUREG:
 2989                 if (ireq->i_val)
 2990                         vap->iv_flags |= IEEE80211_F_PUREG;
 2991                 else
 2992                         vap->iv_flags &= ~IEEE80211_F_PUREG;
 2993                 /* NB: reset only if we're operating on an 11g channel */
 2994                 if (isvap11g(vap))
 2995                         error = ENETRESET;
 2996                 break;
 2997         case IEEE80211_IOC_QUIET:
 2998                 vap->iv_quiet= ireq->i_val;
 2999                 break;
 3000         case IEEE80211_IOC_QUIET_COUNT:
 3001                 vap->iv_quiet_count=ireq->i_val;
 3002                 break;
 3003         case IEEE80211_IOC_QUIET_PERIOD:
 3004                 vap->iv_quiet_period=ireq->i_val;
 3005                 break;
 3006         case IEEE80211_IOC_QUIET_OFFSET:
 3007                 vap->iv_quiet_offset=ireq->i_val;
 3008                 break;
 3009         case IEEE80211_IOC_QUIET_DUR:
 3010                 if(ireq->i_val < vap->iv_bss->ni_intval)
 3011                         vap->iv_quiet_duration = ireq->i_val;
 3012                 else
 3013                         error = EINVAL;
 3014                 break;
 3015         case IEEE80211_IOC_BGSCAN:
 3016                 if (ireq->i_val) {
 3017                         if ((vap->iv_caps & IEEE80211_C_BGSCAN) == 0)
 3018                                 return EOPNOTSUPP;
 3019                         vap->iv_flags |= IEEE80211_F_BGSCAN;
 3020                 } else
 3021                         vap->iv_flags &= ~IEEE80211_F_BGSCAN;
 3022                 break;
 3023         case IEEE80211_IOC_BGSCAN_IDLE:
 3024                 if (ireq->i_val >= IEEE80211_BGSCAN_IDLE_MIN)
 3025                         vap->iv_bgscanidle = ireq->i_val*hz/1000;
 3026                 else
 3027                         error = EINVAL;
 3028                 break;
 3029         case IEEE80211_IOC_BGSCAN_INTERVAL:
 3030                 if (ireq->i_val >= IEEE80211_BGSCAN_INTVAL_MIN)
 3031                         vap->iv_bgscanintvl = ireq->i_val*hz;
 3032                 else
 3033                         error = EINVAL;
 3034                 break;
 3035         case IEEE80211_IOC_SCANVALID:
 3036                 if (ireq->i_val >= IEEE80211_SCAN_VALID_MIN)
 3037                         vap->iv_scanvalid = ireq->i_val*hz;
 3038                 else
 3039                         error = EINVAL;
 3040                 break;
 3041         case IEEE80211_IOC_FRAGTHRESHOLD:
 3042                 if ((vap->iv_caps & IEEE80211_C_TXFRAG) == 0 &&
 3043                     ireq->i_val != IEEE80211_FRAG_MAX)
 3044                         return EOPNOTSUPP;
 3045                 if (!(IEEE80211_FRAG_MIN <= ireq->i_val &&
 3046                       ireq->i_val <= IEEE80211_FRAG_MAX))
 3047                         return EINVAL;
 3048                 vap->iv_fragthreshold = ireq->i_val;
 3049                 error = ERESTART;
 3050                 break;
 3051         case IEEE80211_IOC_BURST:
 3052                 if (ireq->i_val) {
 3053                         if ((vap->iv_caps & IEEE80211_C_BURST) == 0)
 3054                                 return EOPNOTSUPP;
 3055                         ieee80211_syncflag(vap, IEEE80211_F_BURST);
 3056                 } else
 3057                         ieee80211_syncflag(vap, -IEEE80211_F_BURST);
 3058                 error = ERESTART;
 3059                 break;
 3060         case IEEE80211_IOC_BMISSTHRESHOLD:
 3061                 if (!(IEEE80211_HWBMISS_MIN <= ireq->i_val &&
 3062                       ireq->i_val <= IEEE80211_HWBMISS_MAX))
 3063                         return EINVAL;
 3064                 vap->iv_bmissthreshold = ireq->i_val;
 3065                 error = ERESTART;
 3066                 break;
 3067         case IEEE80211_IOC_CURCHAN:
 3068                 error = ieee80211_ioctl_setcurchan(vap, ireq);
 3069                 break;
 3070         case IEEE80211_IOC_SHORTGI:
 3071                 if (ireq->i_val) {
 3072 #define IEEE80211_HTCAP_SHORTGI \
 3073         (IEEE80211_HTCAP_SHORTGI20 | IEEE80211_HTCAP_SHORTGI40)
 3074                         if (((ireq->i_val ^ vap->iv_htcaps) & IEEE80211_HTCAP_SHORTGI) != 0)
 3075                                 return EINVAL;
 3076                         if (ireq->i_val & IEEE80211_HTCAP_SHORTGI20)
 3077                                 vap->iv_flags_ht |= IEEE80211_FHT_SHORTGI20;
 3078                         if (ireq->i_val & IEEE80211_HTCAP_SHORTGI40)
 3079                                 vap->iv_flags_ht |= IEEE80211_FHT_SHORTGI40;
 3080 #undef IEEE80211_HTCAP_SHORTGI
 3081                 } else
 3082                         vap->iv_flags_ht &=
 3083                             ~(IEEE80211_FHT_SHORTGI20 | IEEE80211_FHT_SHORTGI40);
 3084                 error = ERESTART;
 3085                 break;
 3086         case IEEE80211_IOC_AMPDU:
 3087                 if (ireq->i_val && (vap->iv_htcaps & IEEE80211_HTC_AMPDU) == 0)
 3088                         return EINVAL;
 3089                 if (ireq->i_val & 1)
 3090                         vap->iv_flags_ht |= IEEE80211_FHT_AMPDU_TX;
 3091                 else
 3092                         vap->iv_flags_ht &= ~IEEE80211_FHT_AMPDU_TX;
 3093                 if (ireq->i_val & 2)
 3094                         vap->iv_flags_ht |= IEEE80211_FHT_AMPDU_RX;
 3095                 else
 3096                         vap->iv_flags_ht &= ~IEEE80211_FHT_AMPDU_RX;
 3097                 /* NB: reset only if we're operating on an 11n channel */
 3098                 if (isvapht(vap))
 3099                         error = ERESTART;
 3100                 break;
 3101         case IEEE80211_IOC_AMPDU_LIMIT:
 3102                 if (!(IEEE80211_HTCAP_MAXRXAMPDU_8K <= ireq->i_val &&
 3103                       ireq->i_val <= IEEE80211_HTCAP_MAXRXAMPDU_64K))
 3104                         return EINVAL;
 3105                 if (vap->iv_opmode == IEEE80211_M_HOSTAP)
 3106                         vap->iv_ampdu_rxmax = ireq->i_val;
 3107                 else
 3108                         vap->iv_ampdu_limit = ireq->i_val;
 3109                 error = ERESTART;
 3110                 break;
 3111         case IEEE80211_IOC_AMPDU_DENSITY:
 3112                 if (!(IEEE80211_HTCAP_MPDUDENSITY_NA <= ireq->i_val &&
 3113                       ireq->i_val <= IEEE80211_HTCAP_MPDUDENSITY_16))
 3114                         return EINVAL;
 3115                 vap->iv_ampdu_density = ireq->i_val;
 3116                 error = ERESTART;
 3117                 break;
 3118         case IEEE80211_IOC_AMSDU:
 3119                 if (ireq->i_val && (vap->iv_htcaps & IEEE80211_HTC_AMSDU) == 0)
 3120                         return EINVAL;
 3121                 if (ireq->i_val & 1)
 3122                         vap->iv_flags_ht |= IEEE80211_FHT_AMSDU_TX;
 3123                 else
 3124                         vap->iv_flags_ht &= ~IEEE80211_FHT_AMSDU_TX;
 3125                 if (ireq->i_val & 2)
 3126                         vap->iv_flags_ht |= IEEE80211_FHT_AMSDU_RX;
 3127                 else
 3128                         vap->iv_flags_ht &= ~IEEE80211_FHT_AMSDU_RX;
 3129                 /* NB: reset only if we're operating on an 11n channel */
 3130                 if (isvapht(vap))
 3131                         error = ERESTART;
 3132                 break;
 3133         case IEEE80211_IOC_AMSDU_LIMIT:
 3134                 /* XXX validate */
 3135                 vap->iv_amsdu_limit = ireq->i_val;      /* XXX truncation? */
 3136                 break;
 3137         case IEEE80211_IOC_PUREN:
 3138                 if (ireq->i_val) {
 3139                         if ((vap->iv_flags_ht & IEEE80211_FHT_HT) == 0)
 3140                                 return EINVAL;
 3141                         vap->iv_flags_ht |= IEEE80211_FHT_PUREN;
 3142                 } else
 3143                         vap->iv_flags_ht &= ~IEEE80211_FHT_PUREN;
 3144                 /* NB: reset only if we're operating on an 11n channel */
 3145                 if (isvapht(vap))
 3146                         error = ERESTART;
 3147                 break;
 3148         case IEEE80211_IOC_DOTH:
 3149                 if (ireq->i_val) {
 3150 #if 0
 3151                         /* XXX no capability */
 3152                         if ((vap->iv_caps & IEEE80211_C_DOTH) == 0)
 3153                                 return EOPNOTSUPP;
 3154 #endif
 3155                         vap->iv_flags |= IEEE80211_F_DOTH;
 3156                 } else
 3157                         vap->iv_flags &= ~IEEE80211_F_DOTH;
 3158                 error = ENETRESET;
 3159                 break;
 3160         case IEEE80211_IOC_REGDOMAIN:
 3161                 error = ieee80211_ioctl_setregdomain(vap, ireq);
 3162                 break;
 3163         case IEEE80211_IOC_ROAM:
 3164                 error = ieee80211_ioctl_setroam(vap, ireq);
 3165                 break;
 3166         case IEEE80211_IOC_TXPARAMS:
 3167                 error = ieee80211_ioctl_settxparams(vap, ireq);
 3168                 break;
 3169         case IEEE80211_IOC_HTCOMPAT:
 3170                 if (ireq->i_val) {
 3171                         if ((vap->iv_flags_ht & IEEE80211_FHT_HT) == 0)
 3172                                 return EOPNOTSUPP;
 3173                         vap->iv_flags_ht |= IEEE80211_FHT_HTCOMPAT;
 3174                 } else
 3175                         vap->iv_flags_ht &= ~IEEE80211_FHT_HTCOMPAT;
 3176                 /* NB: reset only if we're operating on an 11n channel */
 3177                 if (isvapht(vap))
 3178                         error = ERESTART;
 3179                 break;
 3180         case IEEE80211_IOC_DWDS:
 3181                 if (ireq->i_val) {
 3182                         /* NB: DWDS only makes sense for WDS-capable devices */
 3183                         if ((ic->ic_caps & IEEE80211_C_WDS) == 0)
 3184                                 return EOPNOTSUPP;
 3185                         /* NB: DWDS is used only with ap+sta vaps */
 3186                         if (vap->iv_opmode != IEEE80211_M_HOSTAP &&
 3187                             vap->iv_opmode != IEEE80211_M_STA)
 3188                                 return EINVAL;
 3189                         vap->iv_flags |= IEEE80211_F_DWDS;
 3190                         if (vap->iv_opmode == IEEE80211_M_STA)
 3191                                 vap->iv_flags_ext |= IEEE80211_FEXT_4ADDR;
 3192                 } else {
 3193                         vap->iv_flags &= ~IEEE80211_F_DWDS;
 3194                         if (vap->iv_opmode == IEEE80211_M_STA)
 3195                                 vap->iv_flags_ext &= ~IEEE80211_FEXT_4ADDR;
 3196                 }
 3197                 break;
 3198         case IEEE80211_IOC_INACTIVITY:
 3199                 if (ireq->i_val)
 3200                         vap->iv_flags_ext |= IEEE80211_FEXT_INACT;
 3201                 else
 3202                         vap->iv_flags_ext &= ~IEEE80211_FEXT_INACT;
 3203                 break;
 3204         case IEEE80211_IOC_APPIE:
 3205                 error = ieee80211_ioctl_setappie(vap, ireq);
 3206                 break;
 3207         case IEEE80211_IOC_WPS:
 3208                 if (ireq->i_val) {
 3209                         if ((vap->iv_caps & IEEE80211_C_WPA) == 0)
 3210                                 return EOPNOTSUPP;
 3211                         vap->iv_flags_ext |= IEEE80211_FEXT_WPS;
 3212                 } else
 3213                         vap->iv_flags_ext &= ~IEEE80211_FEXT_WPS;
 3214                 break;
 3215         case IEEE80211_IOC_TSN:
 3216                 if (ireq->i_val) {
 3217                         if ((vap->iv_caps & IEEE80211_C_WPA) == 0)
 3218                                 return EOPNOTSUPP;
 3219                         vap->iv_flags_ext |= IEEE80211_FEXT_TSN;
 3220                 } else
 3221                         vap->iv_flags_ext &= ~IEEE80211_FEXT_TSN;
 3222                 break;
 3223         case IEEE80211_IOC_CHANSWITCH:
 3224                 error = ieee80211_ioctl_chanswitch(vap, ireq);
 3225                 break;
 3226         case IEEE80211_IOC_DFS:
 3227                 if (ireq->i_val) {
 3228                         if ((vap->iv_caps & IEEE80211_C_DFS) == 0)
 3229                                 return EOPNOTSUPP;
 3230                         /* NB: DFS requires 11h support */
 3231                         if ((vap->iv_flags & IEEE80211_F_DOTH) == 0)
 3232                                 return EINVAL;
 3233                         vap->iv_flags_ext |= IEEE80211_FEXT_DFS;
 3234                 } else
 3235                         vap->iv_flags_ext &= ~IEEE80211_FEXT_DFS;
 3236                 break;
 3237         case IEEE80211_IOC_DOTD:
 3238                 if (ireq->i_val)
 3239                         vap->iv_flags_ext |= IEEE80211_FEXT_DOTD;
 3240                 else
 3241                         vap->iv_flags_ext &= ~IEEE80211_FEXT_DOTD;
 3242                 if (vap->iv_opmode == IEEE80211_M_STA)
 3243                         error = ENETRESET;
 3244                 break;
 3245         case IEEE80211_IOC_HTPROTMODE:
 3246                 if (ireq->i_val > IEEE80211_PROT_RTSCTS)
 3247                         return EINVAL;
 3248                 ic->ic_htprotmode = ireq->i_val ?
 3249                     IEEE80211_PROT_RTSCTS : IEEE80211_PROT_NONE;
 3250                 /* NB: if not operating in 11n this can wait */
 3251                 if (isvapht(vap))
 3252                         error = ERESTART;
 3253                 break;
 3254         case IEEE80211_IOC_STA_VLAN:
 3255                 error = ieee80211_ioctl_setstavlan(vap, ireq);
 3256                 break;
 3257         case IEEE80211_IOC_SMPS:
 3258                 if ((ireq->i_val &~ IEEE80211_HTCAP_SMPS) != 0 ||
 3259                     ireq->i_val == 0x0008)      /* value of 2 is reserved */
 3260                         return EINVAL;
 3261                 if (ireq->i_val != IEEE80211_HTCAP_SMPS_OFF &&
 3262                     (vap->iv_htcaps & IEEE80211_HTC_SMPS) == 0)
 3263                         return EOPNOTSUPP;
 3264                 vap->iv_htcaps = (vap->iv_htcaps &~ IEEE80211_HTCAP_SMPS) |
 3265                         ireq->i_val;
 3266                 /* NB: if not operating in 11n this can wait */
 3267                 if (isvapht(vap))
 3268                         error = ERESTART;
 3269                 break;
 3270         case IEEE80211_IOC_RIFS:
 3271                 if (ireq->i_val != 0) {
 3272                         if ((vap->iv_htcaps & IEEE80211_HTC_RIFS) == 0)
 3273                                 return EOPNOTSUPP;
 3274                         vap->iv_flags_ht |= IEEE80211_FHT_RIFS;
 3275                 } else
 3276                         vap->iv_flags_ht &= ~IEEE80211_FHT_RIFS;
 3277                 /* NB: if not operating in 11n this can wait */
 3278                 if (isvapht(vap))
 3279                         error = ERESTART;
 3280                 break;
 3281         case IEEE80211_IOC_STBC:
 3282                 /* Check if we can do STBC TX/RX before changing the setting */
 3283                 if ((ireq->i_val & 1) &&
 3284                     ((vap->iv_htcaps & IEEE80211_HTCAP_TXSTBC) == 0))
 3285                         return EOPNOTSUPP;
 3286                 if ((ireq->i_val & 2) &&
 3287                     ((vap->iv_htcaps & IEEE80211_HTCAP_RXSTBC) == 0))
 3288                         return EOPNOTSUPP;
 3289 
 3290                 /* TX */
 3291                 if (ireq->i_val & 1)
 3292                         vap->iv_flags_ht |= IEEE80211_FHT_STBC_TX;
 3293                 else
 3294                         vap->iv_flags_ht &= ~IEEE80211_FHT_STBC_TX;
 3295 
 3296                 /* RX */
 3297                 if (ireq->i_val & 2)
 3298                         vap->iv_flags_ht |= IEEE80211_FHT_STBC_RX;
 3299                 else
 3300                         vap->iv_flags_ht &= ~IEEE80211_FHT_STBC_RX;
 3301 
 3302                 /* NB: reset only if we're operating on an 11n channel */
 3303                 if (isvapht(vap))
 3304                         error = ERESTART;
 3305                 break;
 3306         default:
 3307                 error = ieee80211_ioctl_setdefault(vap, ireq);
 3308                 break;
 3309         }
 3310         /*
 3311          * The convention is that ENETRESET means an operation
 3312          * requires a complete re-initialization of the device (e.g.
 3313          * changing something that affects the association state).
 3314          * ERESTART means the request may be handled with only a
 3315          * reload of the hardware state.  We hand ERESTART requests
 3316          * to the iv_reset callback so the driver can decide.  If
 3317          * a device does not fillin iv_reset then it defaults to one
 3318          * that returns ENETRESET.  Otherwise a driver may return
 3319          * ENETRESET (in which case a full reset will be done) or
 3320          * 0 to mean there's no need to do anything (e.g. when the
 3321          * change has no effect on the driver/device).
 3322          */
 3323         if (error == ERESTART)
 3324                 error = IFNET_IS_UP_RUNNING(vap->iv_ifp) ?
 3325                     vap->iv_reset(vap, ireq->i_type) : 0;
 3326         if (error == ENETRESET) {
 3327                 /* XXX need to re-think AUTO handling */
 3328                 if (IS_UP_AUTO(vap))
 3329                         ieee80211_init(vap);
 3330                 error = 0;
 3331         }
 3332         return error;
 3333 }
 3334 
 3335 int
 3336 ieee80211_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
 3337 {
 3338         struct ieee80211vap *vap = ifp->if_softc;
 3339         struct ieee80211com *ic = vap->iv_ic;
 3340         int error = 0, wait = 0;
 3341         struct ifreq *ifr;
 3342         struct ifaddr *ifa;                     /* XXX */
 3343 
 3344         switch (cmd) {
 3345         case SIOCSIFFLAGS:
 3346                 IEEE80211_LOCK(ic);
 3347                 if ((ifp->if_flags ^ vap->iv_ifflags) & IFF_PROMISC) {
 3348                         /*
 3349                          * Enable promiscuous mode when:
 3350                          * 1. Interface is not a member of bridge, or
 3351                          * 2. Requested by user, or
 3352                          * 3. In monitor (or adhoc-demo) mode.
 3353                          */
 3354                         if (ifp->if_bridge == NULL ||
 3355                             (ifp->if_flags & IFF_PPROMISC) != 0 ||
 3356                             vap->iv_opmode == IEEE80211_M_MONITOR ||
 3357                             (vap->iv_opmode == IEEE80211_M_AHDEMO &&
 3358                             (vap->iv_caps & IEEE80211_C_TDMA) == 0)) {
 3359                                 ieee80211_promisc(vap,
 3360                                     ifp->if_flags & IFF_PROMISC);
 3361                                 vap->iv_ifflags ^= IFF_PROMISC;
 3362                         }
 3363                 }
 3364                 if ((ifp->if_flags ^ vap->iv_ifflags) & IFF_ALLMULTI) {
 3365                         ieee80211_allmulti(vap, ifp->if_flags & IFF_ALLMULTI);
 3366                         vap->iv_ifflags ^= IFF_ALLMULTI;
 3367                 }
 3368                 if (ifp->if_flags & IFF_UP) {
 3369                         /*
 3370                          * Bring ourself up unless we're already operational.
 3371                          * If we're the first vap and the parent is not up
 3372                          * then it will automatically be brought up as a
 3373                          * side-effect of bringing ourself up.
 3374                          */
 3375                         if (vap->iv_state == IEEE80211_S_INIT) {
 3376                                 if (ic->ic_nrunning == 0)
 3377                                         wait = 1;
 3378                                 ieee80211_start_locked(vap);
 3379                         }
 3380                 } else if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
 3381                         /*
 3382                          * Stop ourself.  If we are the last vap to be
 3383                          * marked down the parent will also be taken down.
 3384                          */
 3385                         if (ic->ic_nrunning == 1)
 3386                                 wait = 1;
 3387                         ieee80211_stop_locked(vap);
 3388                 }
 3389                 IEEE80211_UNLOCK(ic);
 3390                 /* Wait for parent ioctl handler if it was queued */
 3391                 if (wait) {
 3392                         ieee80211_waitfor_parent(ic);
 3393 
 3394                         /*
 3395                          * Check if the MAC address was changed
 3396                          * via SIOCSIFLLADDR ioctl.
 3397                          */
 3398                         if_addr_rlock(ifp);
 3399                         if ((ifp->if_flags & IFF_UP) == 0 &&
 3400                             !IEEE80211_ADDR_EQ(vap->iv_myaddr, IF_LLADDR(ifp)))
 3401                                 IEEE80211_ADDR_COPY(vap->iv_myaddr,
 3402                                     IF_LLADDR(ifp));
 3403                         if_addr_runlock(ifp);
 3404                 }
 3405                 break;
 3406         case SIOCADDMULTI:
 3407         case SIOCDELMULTI:
 3408                 ieee80211_runtask(ic, &ic->ic_mcast_task);
 3409                 break;
 3410         case SIOCSIFMEDIA:
 3411         case SIOCGIFMEDIA:
 3412                 ifr = (struct ifreq *)data;
 3413                 error = ifmedia_ioctl(ifp, ifr, &vap->iv_media, cmd);
 3414                 break;
 3415         case SIOCG80211:
 3416                 error = ieee80211_ioctl_get80211(vap, cmd,
 3417                                 (struct ieee80211req *) data);
 3418                 break;
 3419         case SIOCS80211:
 3420                 error = priv_check(curthread, PRIV_NET80211_MANAGE);
 3421                 if (error == 0)
 3422                         error = ieee80211_ioctl_set80211(vap, cmd,
 3423                                         (struct ieee80211req *) data);
 3424                 break;
 3425         case SIOCG80211STATS:
 3426                 ifr = (struct ifreq *)data;
 3427                 copyout(&vap->iv_stats, ifr_data_get_ptr(ifr),
 3428                     sizeof (vap->iv_stats));
 3429                 break;
 3430         case SIOCSIFMTU:
 3431                 ifr = (struct ifreq *)data;
 3432                 if (!(IEEE80211_MTU_MIN <= ifr->ifr_mtu &&
 3433                     ifr->ifr_mtu <= IEEE80211_MTU_MAX))
 3434                         error = EINVAL;
 3435                 else
 3436                         ifp->if_mtu = ifr->ifr_mtu;
 3437                 break;
 3438         case SIOCSIFADDR:
 3439                 /*
 3440                  * XXX Handle this directly so we can suppress if_init calls.
 3441                  * XXX This should be done in ether_ioctl but for the moment
 3442                  * XXX there are too many other parts of the system that
 3443                  * XXX set IFF_UP and so suppress if_init being called when
 3444                  * XXX it should be.
 3445                  */
 3446                 ifa = (struct ifaddr *) data;
 3447                 switch (ifa->ifa_addr->sa_family) {
 3448 #ifdef INET
 3449                 case AF_INET:
 3450                         if ((ifp->if_flags & IFF_UP) == 0) {
 3451                                 ifp->if_flags |= IFF_UP;
 3452                                 ifp->if_init(ifp->if_softc);
 3453                         }
 3454                         arp_ifinit(ifp, ifa);
 3455                         break;
 3456 #endif
 3457                 default:
 3458                         if ((ifp->if_flags & IFF_UP) == 0) {
 3459                                 ifp->if_flags |= IFF_UP;
 3460                                 ifp->if_init(ifp->if_softc);
 3461                         }
 3462                         break;
 3463                 }
 3464                 break;
 3465         default:
 3466                 /*
 3467                  * Pass unknown ioctls first to the driver, and if it
 3468                  * returns ENOTTY, then to the generic Ethernet handler.
 3469                  */
 3470                 if (ic->ic_ioctl != NULL &&
 3471                     (error = ic->ic_ioctl(ic, cmd, data)) != ENOTTY)
 3472                         break;
 3473                 error = ether_ioctl(ifp, cmd, data);
 3474                 break;
 3475         }
 3476         return (error);
 3477 }
Cache object: 02a2b6fe9b2391645239f4feca7c8a32
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FreeBSD/Linux Kernel Cross Reference sys/net80211/ieee80211_ioctl.c

FreeBSD/Linux Kernel Cross Reference
sys/net80211/ieee80211_ioctl.c
