sys/netproto/802_11/wlan/ieee80211_ioctl.c

   1 /*
   2  * Copyright (c) 2001 Atsushi Onoe
   3  * Copyright (c) 2002-2005 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  * 3. The name of the author may not be used to endorse or promote products
  15  *    derived from this software without specific prior written permission.
  16  *
  17  * Alternatively, this software may be distributed under the terms of the
  18  * GNU General Public License ("GPL") version 2 as published by the Free
  19  * Software Foundation.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  22  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  23  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  24  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  25  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  26  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  27  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  28  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  29  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  30  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  31  *
  32  * $FreeBSD: src/sys/net80211/ieee80211_ioctl.c,v 1.25.2.15 2006/09/02 17:09:26 sam Exp $
  33  * $DragonFly: src/sys/netproto/802_11/wlan/ieee80211_ioctl.c,v 1.13 2008/01/19 07:34:13 sephe Exp $
  34  */
  35
  36 /*
  37  * IEEE 802.11 ioctl support (DragonFlyBSD-specific)
  38  */
  39
  40 #include "opt_inet.h"
  41 #include "opt_ipx.h"
  42
  43 #include <sys/endian.h>
  44 #include <sys/param.h>
  45 #include <sys/kernel.h>
  46 #include <sys/proc.h>
  47 #include <sys/socket.h>
  48 #include <sys/sockio.h>
  49 #include <sys/systm.h>
  50
  51 #include <net/if.h>
  52 #include <net/if_arp.h>
  53 #include <net/if_dl.h>
  54 #include <net/if_media.h>
  55 #include <net/ethernet.h>
  56
  57 #ifdef INET
  58 #include <netinet/in.h>
  59 #include <netinet/if_ether.h>
  60 #endif
  61
  62 #ifdef IPX
  63 #include <netproto/ipx/ipx.h>
  64 #include <netproto/ipx/ipx_if.h>
  65 #endif
  66
  67 #include <netproto/802_11/ieee80211_var.h>
  68 #include <netproto/802_11/ieee80211_ioctl.h>
  69
  70 #include <netproto/802_11/if_wavelan_ieee.h>
  71
  72 #define IS_UP(_ic)                                              \
  73         (((_ic)->ic_ifp->if_flags & (IFF_UP | IFF_RUNNING)) ==  \
  74          (IFF_UP | IFF_RUNNING))
  75
  76 #define IS_UP_AUTO(_ic) \
  77         (IS_UP(_ic) && (_ic)->ic_roaming == IEEE80211_ROAMING_AUTO)
  78
  79 /*
  80  * XXX
  81  * Wireless LAN specific configuration interface, which is compatible
  82  * with wicontrol(8).
  83  */
  84
  85 struct wi_read_ap_args {
  86         int     i;              /* result count */
  87         struct wi_apinfo *ap;   /* current entry in result buffer */
  88         caddr_t max;            /* result buffer bound */
  89 };
  90
  91 static void
  92 wi_read_ap_result(void *arg, struct ieee80211_node *ni)
  93 {
  94         struct ieee80211com *ic = ni->ni_ic;
  95         struct wi_read_ap_args *sa = arg;
  96         struct wi_apinfo *ap = sa->ap;
  97         struct ieee80211_rateset *rs;
  98         int j;
  99
 100         if ((caddr_t)(ap + 1) > sa->max)
 101                 return;
 102         memset(ap, 0, sizeof(struct wi_apinfo));
 103         if (ic->ic_opmode == IEEE80211_M_HOSTAP) {
 104                 IEEE80211_ADDR_COPY(ap->bssid, ni->ni_macaddr);
 105                 ap->namelen = ic->ic_des_esslen;
 106                 if (ic->ic_des_esslen)
 107                         memcpy(ap->name, ic->ic_des_essid,
 108                             ic->ic_des_esslen);
 109         } else {
 110                 IEEE80211_ADDR_COPY(ap->bssid, ni->ni_bssid);
 111                 ap->namelen = ni->ni_esslen;
 112                 if (ni->ni_esslen)
 113                         memcpy(ap->name, ni->ni_essid,
 114                             ni->ni_esslen);
 115         }
 116         ap->channel = ieee80211_chan2ieee(ic, ni->ni_chan);
 117         ap->signal = ic->ic_node_getrssi(ni);
 118         ap->capinfo = ni->ni_capinfo;
 119         ap->interval = ni->ni_intval;
 120         rs = &ni->ni_rates;
 121         for (j = 0; j < rs->rs_nrates; j++) {
 122                 if (rs->rs_rates[j] & IEEE80211_RATE_BASIC) {
 123                         ap->rate = (rs->rs_rates[j] &
 124                             IEEE80211_RATE_VAL) * 5; /* XXX */
 125                 }
 126         }
 127         sa->i++;
 128         sa->ap++;
 129 }
 130
 131 struct wi_read_prism2_args {
 132         int     i;              /* result count */
 133         struct wi_scan_res *res;/* current entry in result buffer */
 134         caddr_t max;            /* result buffer bound */
 135 };
 136
 137 static void
 138 wi_read_prism2_result(void *arg, struct ieee80211_node *ni)
 139 {
 140         struct ieee80211com *ic = ni->ni_ic;
 141         struct wi_read_prism2_args *sa = arg;
 142         struct wi_scan_res *res = sa->res;
 143
 144         if ((caddr_t)(res + 1) > sa->max)
 145                 return;
 146         res->wi_chan = ieee80211_chan2ieee(ic, ni->ni_chan);
 147         res->wi_noise = 0;
 148         res->wi_signal = ic->ic_node_getrssi(ni);
 149         IEEE80211_ADDR_COPY(res->wi_bssid, ni->ni_bssid);
 150         res->wi_interval = ni->ni_intval;
 151         res->wi_capinfo = ni->ni_capinfo;
 152         res->wi_ssid_len = ni->ni_esslen;
 153         memcpy(res->wi_ssid, ni->ni_essid, IEEE80211_NWID_LEN);
 154         /* NB: assumes wi_srates holds <= ni->ni_rates */
 155         memcpy(res->wi_srates, ni->ni_rates.rs_rates,
 156                 sizeof(res->wi_srates));
 157         if (ni->ni_rates.rs_nrates < 10)
 158                 res->wi_srates[ni->ni_rates.rs_nrates] = 0;
 159         res->wi_rate = ni->ni_rates.rs_rates[ni->ni_txrate];
 160         res->wi_rsvd = 0;
 161
 162         sa->i++;
 163         sa->res++;
 164 }
 165
 166 struct wi_read_sigcache_args {
 167         int     i;              /* result count */
 168         struct wi_sigcache *wsc;/* current entry in result buffer */
 169         caddr_t max;            /* result buffer bound */
 170 };
 171
 172 static void
 173 wi_read_sigcache(void *arg, struct ieee80211_node *ni)
 174 {
 175         struct ieee80211com *ic = ni->ni_ic;
 176         struct wi_read_sigcache_args *sa = arg;
 177         struct wi_sigcache *wsc = sa->wsc;
 178
 179         if ((caddr_t)(wsc + 1) > sa->max)
 180                 return;
 181         memset(wsc, 0, sizeof(struct wi_sigcache));
 182         IEEE80211_ADDR_COPY(wsc->macsrc, ni->ni_macaddr);
 183         wsc->signal = ic->ic_node_getrssi(ni);
 184
 185         sa->wsc++;
 186         sa->i++;
 187 }
 188
 189 int
 190 ieee80211_cfgget(struct ieee80211com *ic, u_long cmd, caddr_t data,
 191                  struct ucred *cr)
 192 {
 193         struct ifnet *ifp = ic->ic_ifp;
 194         int i, j, error;
 195         struct ifreq *ifr = (struct ifreq *)data;
 196         struct wi_req wreq;
 197         struct wi_ltv_keys *keys;
 198
 199         error = copyin(ifr->ifr_data, &wreq, sizeof(wreq));
 200         if (error)
 201                 return error;
 202         wreq.wi_len = 0;
 203         switch (wreq.wi_type) {
 204         case WI_RID_SERIALNO:
 205                 /* nothing appropriate */
 206                 break;
 207         case WI_RID_NODENAME:
 208                 strcpy((char *)&wreq.wi_val[1], hostname);
 209                 wreq.wi_val[0] = htole16(strlen(hostname));
 210                 wreq.wi_len = (1 + strlen(hostname) + 1) / 2;
 211                 break;
 212         case WI_RID_CURRENT_SSID:
 213                 if (ic->ic_state != IEEE80211_S_RUN) {
 214                         wreq.wi_val[0] = 0;
 215                         wreq.wi_len = 1;
 216                         break;
 217                 }
 218                 wreq.wi_val[0] = htole16(ic->ic_bss->ni_esslen);
 219                 memcpy(&wreq.wi_val[1], ic->ic_bss->ni_essid,
 220                     ic->ic_bss->ni_esslen);
 221                 wreq.wi_len = (1 + ic->ic_bss->ni_esslen + 1) / 2;
 222                 break;
 223         case WI_RID_OWN_SSID:
 224         case WI_RID_DESIRED_SSID:
 225                 wreq.wi_val[0] = htole16(ic->ic_des_esslen);
 226                 memcpy(&wreq.wi_val[1], ic->ic_des_essid, ic->ic_des_esslen);
 227                 wreq.wi_len = (1 + ic->ic_des_esslen + 1) / 2;
 228                 break;
 229         case WI_RID_CURRENT_BSSID:
 230                 if (ic->ic_state == IEEE80211_S_RUN)
 231                         IEEE80211_ADDR_COPY(wreq.wi_val, ic->ic_bss->ni_bssid);
 232                 else
 233                         memset(wreq.wi_val, 0, IEEE80211_ADDR_LEN);
 234                 wreq.wi_len = IEEE80211_ADDR_LEN / 2;
 235                 break;
 236         case WI_RID_CHANNEL_LIST:
 237                 memset(wreq.wi_val, 0, sizeof(wreq.wi_val));
 238                 /*
 239                  * Since channel 0 is not available for DS, channel 1
 240                  * is assigned to LSB on WaveLAN.
 241                  */
 242                 if (ic->ic_phytype == IEEE80211_T_DS)
 243                         i = 1;
 244                 else
 245                         i = 0;
 246                 for (j = 0; i <= IEEE80211_CHAN_MAX; i++, j++)
 247                         if (isset(ic->ic_chan_active, i)) {
 248                                 setbit((uint8_t *)wreq.wi_val, j);
 249                                 wreq.wi_len = j / 16 + 1;
 250                         }
 251                 break;
 252         case WI_RID_OWN_CHNL:
 253                 wreq.wi_val[0] = htole16(
 254                         ieee80211_chan2ieee(ic, ic->ic_ibss_chan));
 255                 wreq.wi_len = 1;
 256                 break;
 257         case WI_RID_CURRENT_CHAN:
 258                 wreq.wi_val[0] = htole16(
 259                         ieee80211_chan2ieee(ic, ic->ic_curchan));
 260                 wreq.wi_len = 1;
 261                 break;
 262         case WI_RID_COMMS_QUALITY:
 263                 wreq.wi_val[0] = 0;                             /* quality */
 264                 wreq.wi_val[1] = htole16(ic->ic_node_getrssi(ic->ic_bss));
 265                 wreq.wi_val[2] = 0;                             /* noise */
 266                 wreq.wi_len = 3;
 267                 break;
 268         case WI_RID_PROMISC:
 269                 wreq.wi_val[0] = htole16((ifp->if_flags & IFF_PROMISC) ? 1 : 0);
 270                 wreq.wi_len = 1;
 271                 break;
 272         case WI_RID_PORTTYPE:
 273                 wreq.wi_val[0] = htole16(ic->ic_opmode);
 274                 wreq.wi_len = 1;
 275                 break;
 276         case WI_RID_MAC_NODE:
 277                 IEEE80211_ADDR_COPY(wreq.wi_val, ic->ic_myaddr);
 278                 wreq.wi_len = IEEE80211_ADDR_LEN / 2;
 279                 break;
 280         case WI_RID_TX_RATE:
 281                 if (ic->ic_fixed_rate == IEEE80211_FIXED_RATE_NONE)
 282                         wreq.wi_val[0] = 0;     /* auto */
 283                 else
 284                         wreq.wi_val[0] = htole16(
 285                             (ic->ic_sup_rates[ic->ic_curmode].rs_rates[ic->ic_fixed_rate] &
 286                             IEEE80211_RATE_VAL) / 2);
 287                 wreq.wi_len = 1;
 288                 break;
 289         case WI_RID_CUR_TX_RATE:
 290                 wreq.wi_val[0] = htole16(
 291                     (ic->ic_bss->ni_rates.rs_rates[ic->ic_bss->ni_txrate] &
 292                     IEEE80211_RATE_VAL) / 2);
 293                 wreq.wi_len = 1;
 294                 break;
 295         case WI_RID_RTS_THRESH:
 296                 wreq.wi_val[0] = htole16(ic->ic_rtsthreshold);
 297                 wreq.wi_len = 1;
 298                 break;
 299         case WI_RID_CREATE_IBSS:
 300                 wreq.wi_val[0] =
 301                     htole16((ic->ic_flags & IEEE80211_F_IBSSON) ? 1 : 0);
 302                 wreq.wi_len = 1;
 303                 break;
 304         case WI_RID_MICROWAVE_OVEN:
 305                 wreq.wi_val[0] = 0;     /* no ... not supported */
 306                 wreq.wi_len = 1;
 307                 break;
 308         case WI_RID_ROAMING_MODE:
 309                 wreq.wi_val[0] = htole16(ic->ic_roaming);       /* XXX map */
 310                 wreq.wi_len = 1;
 311                 break;
 312         case WI_RID_SYSTEM_SCALE:
 313                 wreq.wi_val[0] = htole16(1);    /* low density ... not supp */
 314                 wreq.wi_len = 1;
 315                 break;
 316         case WI_RID_PM_ENABLED:
 317                 wreq.wi_val[0] =
 318                     htole16((ic->ic_flags & IEEE80211_F_PMGTON) ? 1 : 0);
 319                 wreq.wi_len = 1;
 320                 break;
 321         case WI_RID_MAX_SLEEP:
 322                 wreq.wi_val[0] = htole16(ic->ic_lintval);
 323                 wreq.wi_len = 1;
 324                 break;
 325         case WI_RID_CUR_BEACON_INT:
 326                 wreq.wi_val[0] = htole16(ic->ic_bss->ni_intval);
 327                 wreq.wi_len = 1;
 328                 break;
 329         case WI_RID_WEP_AVAIL:
 330                 wreq.wi_val[0] = htole16(1);    /* always available */
 331                 wreq.wi_len = 1;
 332                 break;
 333         case WI_RID_CNFAUTHMODE:
 334                 wreq.wi_val[0] = htole16(1);    /* TODO: open system only */
 335                 wreq.wi_len = 1;
 336                 break;
 337         case WI_RID_ENCRYPTION:
 338                 wreq.wi_val[0] =
 339                     htole16((ic->ic_flags & IEEE80211_F_PRIVACY) ? 1 : 0);
 340                 wreq.wi_len = 1;
 341                 break;
 342         case WI_RID_TX_CRYPT_KEY:
 343                 wreq.wi_val[0] = htole16(ic->ic_def_txkey);
 344                 wreq.wi_len = 1;
 345                 break;
 346         case WI_RID_DEFLT_CRYPT_KEYS:
 347                 keys = (struct wi_ltv_keys *)&wreq;
 348                 /* do not show keys to non-root user */
 349                 error = suser_cred(cr, NULL_CRED_OKAY);
 350                 if (error) {
 351                         memset(keys, 0, sizeof(*keys));
 352                         error = 0;
 353                         break;
 354                 }
 355                 for (i = 0; i < IEEE80211_WEP_NKID; i++) {
 356                         keys->wi_keys[i].wi_keylen =
 357                             htole16(ic->ic_nw_keys[i].wk_keylen);
 358                         memcpy(keys->wi_keys[i].wi_keydat,
 359                             ic->ic_nw_keys[i].wk_key,
 360                             ic->ic_nw_keys[i].wk_keylen);
 361                 }
 362                 wreq.wi_len = sizeof(*keys) / 2;
 363                 break;
 364         case WI_RID_MAX_DATALEN:
 365                 wreq.wi_val[0] = htole16(ic->ic_fragthreshold);
 366                 wreq.wi_len = 1;
 367                 break;
 368         case WI_RID_IFACE_STATS:
 369                 /* XXX: should be implemented in lower drivers */
 370                 break;
 371         case WI_RID_READ_APS:
 372                 /*
 373                  * Don't return results until active scan completes.
 374                  */
 375                 if ((ic->ic_flags & (IEEE80211_F_SCAN|IEEE80211_F_ASCAN)) == 0) {
 376                         struct wi_read_ap_args args;
 377
 378                         args.i = 0;
 379                         args.ap = (void *)((char *)wreq.wi_val + sizeof(i));
 380                         args.max = (void *)(&wreq + 1);
 381                         ieee80211_iterate_nodes(&ic->ic_scan,
 382                                 wi_read_ap_result, &args);
 383                         memcpy(wreq.wi_val, &args.i, sizeof(args.i));
 384                         wreq.wi_len = (sizeof(int) +
 385                                 sizeof(struct wi_apinfo) * args.i) / 2;
 386                 } else
 387                         error = EINPROGRESS;
 388                 break;
 389         case WI_RID_PRISM2:
 390                 /* NB: we lie so WI_RID_SCAN_RES can include rates */
 391                 wreq.wi_val[0] = 1;
 392                 wreq.wi_len = sizeof(uint16_t) / 2;
 393                 break;
 394         case WI_RID_SCAN_RES:                   /* compatibility interface */
 395                 if ((ic->ic_flags & (IEEE80211_F_SCAN|IEEE80211_F_ASCAN)) == 0) {
 396                         struct wi_read_prism2_args args;
 397                         struct wi_scan_p2_hdr *p2;
 398
 399                         /* NB: use Prism2 format so we can include rate info */
 400                         p2 = (struct wi_scan_p2_hdr *)wreq.wi_val;
 401                         args.i = 0;
 402                         args.res = (void *)&p2[1];
 403                         args.max = (void *)(&wreq + 1);
 404                         ieee80211_iterate_nodes(&ic->ic_scan,
 405                                 wi_read_prism2_result, &args);
 406                         p2->wi_rsvd = 0;
 407                         p2->wi_reason = args.i;
 408                         wreq.wi_len = (sizeof(*p2) +
 409                                 sizeof(struct wi_scan_res) * args.i) / 2;
 410                 } else
 411                         error = EINPROGRESS;
 412                 break;
 413         case WI_RID_READ_CACHE: {
 414                 struct wi_read_sigcache_args args;
 415                 args.i = 0;
 416                 args.wsc = (struct wi_sigcache *) wreq.wi_val;
 417                 args.max = (void *)(&wreq + 1);
 418                 ieee80211_iterate_nodes(&ic->ic_scan, wi_read_sigcache, &args);
 419                 wreq.wi_len = sizeof(struct wi_sigcache) * args.i / 2;
 420                 break;
 421         }
 422         default:
 423                 error = EINVAL;
 424                 break;
 425         }
 426         if (error == 0) {
 427                 wreq.wi_len++;
 428                 error = copyout(&wreq, ifr->ifr_data, sizeof(wreq));
 429         }
 430         return error;
 431 }
 432
 433 static int
 434 findrate(struct ieee80211com *ic, enum ieee80211_phymode mode, int rate)
 435 {
 436 #define IEEERATE(_ic,_m,_i) \
 437         ((_ic)->ic_sup_rates[_m].rs_rates[_i] & IEEE80211_RATE_VAL)
 438         int i, nrates = ic->ic_sup_rates[mode].rs_nrates;
 439         for (i = 0; i < nrates; i++)
 440                 if (IEEERATE(ic, mode, i) == rate)
 441                         return i;
 442         return -1;
 443 #undef IEEERATE
 444 }
 445
 446 /*
 447  * Prepare to do a user-initiated scan for AP's.  If no
 448  * current/default channel is setup or the current channel
 449  * is invalid then pick the first available channel from
 450  * the active list as the place to start the scan.
 451  */
 452 static int
 453 ieee80211_setupscan(struct ieee80211com *ic, const uint8_t chanlist[])
 454 {
 455
 456         /*
 457          * XXX don't permit a scan to be started unless we
 458          * know the device is ready.  For the moment this means
 459          * the device is marked up as this is the required to
 460          * initialize the hardware.  It would be better to permit
 461          * scanning prior to being up but that'll require some
 462          * changes to the infrastructure.
 463          */
 464         if (!IS_UP(ic))
 465                 return EINVAL;
 466         memcpy(ic->ic_chan_active, chanlist, sizeof(ic->ic_chan_active));
 467         /*
 468          * We force the state to INIT before calling ieee80211_new_state
 469          * to get ieee80211_begin_scan called.  We really want to scan w/o
 470          * altering the current state but that's not possible right now.
 471          */
 472         /* XXX handle proberequest case */
 473         ic->ic_state = IEEE80211_S_INIT;        /* XXX bypass state machine */
 474         return 0;
 475 }
 476
 477 int
 478 ieee80211_cfgset(struct ieee80211com *ic, u_long cmd, caddr_t data)
 479 {
 480         struct ifnet *ifp = ic->ic_ifp;
 481         int i, j, len, error, rate;
 482         struct ifreq *ifr = (struct ifreq *)data;
 483         struct wi_ltv_keys *keys;
 484         struct wi_req wreq;
 485         u_char chanlist[roundup(IEEE80211_CHAN_MAX, NBBY)];
 486
 487         error = copyin(ifr->ifr_data, &wreq, sizeof(wreq));
 488         if (error)
 489                 return error;
 490         len = wreq.wi_len ? (wreq.wi_len - 1) * 2 : 0;
 491         switch (wreq.wi_type) {
 492         case WI_RID_SERIALNO:
 493         case WI_RID_NODENAME:
 494                 return EPERM;
 495         case WI_RID_CURRENT_SSID:
 496                 return EPERM;
 497         case WI_RID_OWN_SSID:
 498         case WI_RID_DESIRED_SSID:
 499                 if (le16toh(wreq.wi_val[0]) * 2 > len ||
 500                     le16toh(wreq.wi_val[0]) > IEEE80211_NWID_LEN) {
 501                         error = ENOSPC;
 502                         break;
 503                 }
 504                 memset(ic->ic_des_essid, 0, sizeof(ic->ic_des_essid));
 505                 ic->ic_des_esslen = le16toh(wreq.wi_val[0]) * 2;
 506                 memcpy(ic->ic_des_essid, &wreq.wi_val[1], ic->ic_des_esslen);
 507                 error = ENETRESET;
 508                 break;
 509         case WI_RID_CURRENT_BSSID:
 510                 return EPERM;
 511         case WI_RID_OWN_CHNL:
 512                 if (len != 2)
 513                         return EINVAL;
 514                 i = le16toh(wreq.wi_val[0]);
 515                 if (i < 0 ||
 516                     i > IEEE80211_CHAN_MAX ||
 517                     isclr(ic->ic_chan_active, i))
 518                         return EINVAL;
 519                 ic->ic_ibss_chan = &ic->ic_channels[i];
 520                 if (ic->ic_opmode == IEEE80211_M_MONITOR)
 521                         error = IS_UP(ic) ? ic->ic_reset(ic->ic_ifp) : 0;
 522                 else
 523                         error = ENETRESET;
 524                 break;
 525         case WI_RID_CURRENT_CHAN:
 526                 return EPERM;
 527         case WI_RID_COMMS_QUALITY:
 528                 return EPERM;
 529         case WI_RID_PROMISC:
 530                 if (len != 2)
 531                         return EINVAL;
 532                 if (ifp->if_flags & IFF_PROMISC) {
 533                         if (wreq.wi_val[0] == 0) {
 534                                 ifp->if_flags &= ~IFF_PROMISC;
 535                                 error = ENETRESET;
 536                         }
 537                 } else {
 538                         if (wreq.wi_val[0] != 0) {
 539                                 ifp->if_flags |= IFF_PROMISC;
 540                                 error = ENETRESET;
 541                         }
 542                 }
 543                 break;
 544         case WI_RID_PORTTYPE:
 545                 if (len != 2)
 546                         return EINVAL;
 547                 switch (le16toh(wreq.wi_val[0])) {
 548                 case IEEE80211_M_STA:
 549                         break;
 550                 case IEEE80211_M_IBSS:
 551                         if (!(ic->ic_caps & IEEE80211_C_IBSS))
 552                                 return EINVAL;
 553                         break;
 554                 case IEEE80211_M_AHDEMO:
 555                         if (ic->ic_phytype != IEEE80211_T_DS ||
 556                             !(ic->ic_caps & IEEE80211_C_AHDEMO))
 557                                 return EINVAL;
 558                         break;
 559                 case IEEE80211_M_HOSTAP:
 560                         if (!(ic->ic_caps & IEEE80211_C_HOSTAP))
 561                                 return EINVAL;
 562                         break;
 563                 default:
 564                         return EINVAL;
 565                 }
 566                 if (le16toh(wreq.wi_val[0]) != ic->ic_opmode) {
 567                         ic->ic_opmode = le16toh(wreq.wi_val[0]);
 568                         error = IS_UP(ic) ? ic->ic_reset(ic->ic_ifp) : 0;
 569                 }
 570                 break;
 571 #if 0
 572         case WI_RID_MAC_NODE:
 573                 if (len != IEEE80211_ADDR_LEN)
 574                         return EINVAL;
 575                 IEEE80211_ADDR_COPY(LLADDR(ifp->if_sadl), wreq.wi_val);
 576                 /* if_init will copy lladdr into ic_myaddr */
 577                 error = ENETRESET;
 578                 break;
 579 #endif
 580         case WI_RID_TX_RATE:
 581                 if (len != 2)
 582                         return EINVAL;
 583                 if (wreq.wi_val[0] == 0) {
 584                         /* auto */
 585                         ic->ic_fixed_rate = IEEE80211_FIXED_RATE_NONE;
 586                         break;
 587                 }
 588                 rate = 2 * le16toh(wreq.wi_val[0]);
 589                 if (ic->ic_curmode == IEEE80211_MODE_AUTO) {
 590                         /*
 591                          * In autoselect mode search for the rate.  We take
 592                          * the first instance which may not be right, but we
 593                          * are limited by the interface.  Note that we also
 594                          * lock the mode to insure the rate is meaningful
 595                          * when it is used.
 596                          */
 597                         for (j = IEEE80211_MODE_11A;
 598                              j < IEEE80211_MODE_MAX; j++) {
 599                                 if ((ic->ic_modecaps & (1<<j)) == 0)
 600                                         continue;
 601                                 i = findrate(ic, j, rate);
 602                                 if (i != -1) {
 603                                         /* lock mode too */
 604                                         ic->ic_curmode = j;
 605                                         goto setrate;
 606                                 }
 607                         }
 608                 } else {
 609                         i = findrate(ic, ic->ic_curmode, rate);
 610                         if (i != -1)
 611                                 goto setrate;
 612                 }
 613                 return EINVAL;
 614         setrate:
 615                 ic->ic_fixed_rate = i;
 616                 error = IS_UP(ic) ? ic->ic_reset(ic->ic_ifp) : 0;
 617                 break;
 618         case WI_RID_CUR_TX_RATE:
 619                 return EPERM;
 620         case WI_RID_RTS_THRESH:
 621                 if (len != 2)
 622                         return EINVAL;
 623                 if (le16toh(wreq.wi_val[0]) != IEEE80211_MAX_LEN)
 624                         return EINVAL;          /* TODO: RTS */
 625                 break;
 626         case WI_RID_CREATE_IBSS:
 627                 if (len != 2)
 628                         return EINVAL;
 629                 if (wreq.wi_val[0] != 0) {
 630                         if ((ic->ic_caps & IEEE80211_C_IBSS) == 0)
 631                                 return EINVAL;
 632                         if ((ic->ic_flags & IEEE80211_F_IBSSON) == 0) {
 633                                 ic->ic_flags |= IEEE80211_F_IBSSON;
 634                                 if (ic->ic_opmode == IEEE80211_M_IBSS &&
 635                                     ic->ic_state == IEEE80211_S_SCAN)
 636                                         error = IS_UP_AUTO(ic) ? ENETRESET : 0;
 637                         }
 638                 } else {
 639                         if (ic->ic_flags & IEEE80211_F_IBSSON) {
 640                                 ic->ic_flags &= ~IEEE80211_F_IBSSON;
 641                                 if (ic->ic_flags & IEEE80211_F_SIBSS) {
 642                                         ic->ic_flags &= ~IEEE80211_F_SIBSS;
 643                                         error = IS_UP_AUTO(ic) ? ENETRESET : 0;
 644                                 }
 645                         }
 646                 }
 647                 break;
 648         case WI_RID_MICROWAVE_OVEN:
 649                 if (len != 2)
 650                         return EINVAL;
 651                 if (wreq.wi_val[0] != 0)
 652                         return EINVAL;          /* not supported */
 653                 break;
 654         case WI_RID_ROAMING_MODE:
 655                 if (len != 2)
 656                         return EINVAL;
 657                 i = le16toh(wreq.wi_val[0]);
 658                 if (i > IEEE80211_ROAMING_MANUAL)
 659                         return EINVAL;          /* not supported */
 660                 ic->ic_roaming = i;
 661                 break;
 662         case WI_RID_SYSTEM_SCALE:
 663                 if (len != 2)
 664                         return EINVAL;
 665                 if (le16toh(wreq.wi_val[0]) != 1)
 666                         return EINVAL;          /* not supported */
 667                 break;
 668         case WI_RID_PM_ENABLED:
 669                 if (len != 2)
 670                         return EINVAL;
 671                 if (wreq.wi_val[0] != 0) {
 672                         if ((ic->ic_caps & IEEE80211_C_PMGT) == 0)
 673                                 return EINVAL;
 674                         if ((ic->ic_flags & IEEE80211_F_PMGTON) == 0) {
 675                                 ic->ic_flags |= IEEE80211_F_PMGTON;
 676                                 error = IS_UP(ic) ? ic->ic_reset(ic->ic_ifp) : 0;
 677                         }
 678                 } else {
 679                         if (ic->ic_flags & IEEE80211_F_PMGTON) {
 680                                 ic->ic_flags &= ~IEEE80211_F_PMGTON;
 681                                 error = IS_UP(ic) ? ic->ic_reset(ic->ic_ifp) : 0;
 682                         }
 683                 }
 684                 break;
 685         case WI_RID_MAX_SLEEP:
 686                 if (len != 2)
 687                         return EINVAL;
 688                 ic->ic_lintval = le16toh(wreq.wi_val[0]);
 689                 if (ic->ic_flags & IEEE80211_F_PMGTON)
 690                         error = IS_UP(ic) ? ic->ic_reset(ic->ic_ifp) : 0;
 691                 break;
 692         case WI_RID_CUR_BEACON_INT:
 693                 return EPERM;
 694         case WI_RID_WEP_AVAIL:
 695                 return EPERM;
 696         case WI_RID_CNFAUTHMODE:
 697                 if (len != 2)
 698                         return EINVAL;
 699                 i = le16toh(wreq.wi_val[0]);
 700                 if (i > IEEE80211_AUTH_WPA)
 701                         return EINVAL;
 702                 ic->ic_bss->ni_authmode = i;            /* XXX ENETRESET? */
 703                 error = ENETRESET;
 704                 break;
 705         case WI_RID_ENCRYPTION:
 706                 if (len != 2)
 707                         return EINVAL;
 708                 if (wreq.wi_val[0] != 0) {
 709                         if ((ic->ic_caps & IEEE80211_C_WEP) == 0)
 710                                 return EINVAL;
 711                         if ((ic->ic_flags & IEEE80211_F_PRIVACY) == 0) {
 712                                 ic->ic_flags |= IEEE80211_F_PRIVACY;
 713                                 error = ENETRESET;
 714                         }
 715                 } else {
 716                         if (ic->ic_flags & IEEE80211_F_PRIVACY) {
 717                                 ic->ic_flags &= ~IEEE80211_F_PRIVACY;
 718                                 error = ENETRESET;
 719                         }
 720                 }
 721                 break;
 722         case WI_RID_TX_CRYPT_KEY:
 723                 if (len != 2)
 724                         return EINVAL;
 725                 i = le16toh(wreq.wi_val[0]);
 726                 if (i >= IEEE80211_WEP_NKID)
 727                         return EINVAL;
 728                 ic->ic_def_txkey = i;
 729                 error = IS_UP(ic) ? ic->ic_reset(ic->ic_ifp) : 0;
 730                 break;
 731         case WI_RID_DEFLT_CRYPT_KEYS:
 732                 if (len != sizeof(struct wi_ltv_keys))
 733                         return EINVAL;
 734                 keys = (struct wi_ltv_keys *)&wreq;
 735                 for (i = 0; i < IEEE80211_WEP_NKID; i++) {
 736                         len = le16toh(keys->wi_keys[i].wi_keylen);
 737                         if (len != 0 && len < IEEE80211_WEP_KEYLEN)
 738                                 return EINVAL;
 739                         if (len > IEEE80211_KEYBUF_SIZE)
 740                                 return EINVAL;
 741                 }
 742                 for (i = 0; i < IEEE80211_WEP_NKID; i++) {
 743                         struct ieee80211_key *k = &ic->ic_nw_keys[i];
 744
 745                         len = le16toh(keys->wi_keys[i].wi_keylen);
 746                         k->wk_keylen = len;
 747                         k->wk_flags = IEEE80211_KEY_XMIT | IEEE80211_KEY_RECV;
 748                         memset(k->wk_key, 0, sizeof(k->wk_key));
 749                         memcpy(k->wk_key, keys->wi_keys[i].wi_keydat, len);
 750 #if 0
 751                         k->wk_type = IEEE80211_CIPHER_WEP;
 752 #endif
 753                 }
 754                 error = ENETRESET;
 755                 break;
 756         case WI_RID_MAX_DATALEN:
 757                 if (len != 2)
 758                         return EINVAL;
 759                 len = le16toh(wreq.wi_val[0]);
 760                 if (len < 350 /* ? */ || len > IEEE80211_MAX_LEN)
 761                         return EINVAL;
 762                 ic->ic_fragthreshold = len;
 763                 error = IS_UP(ic) ? ic->ic_reset(ic->ic_ifp) : 0;
 764                 break;
 765         case WI_RID_IFACE_STATS:
 766                 error = EPERM;
 767                 break;
 768         case WI_RID_SCAN_REQ:                   /* XXX wicontrol */
 769                 if (ic->ic_opmode == IEEE80211_M_HOSTAP)
 770                         break;
 771                 error = ieee80211_setupscan(ic, ic->ic_chan_avail);
 772                 if (error == 0)
 773                         error = ieee80211_new_state(ic, IEEE80211_S_SCAN, -1);
 774                 break;
 775         case WI_RID_SCAN_APS:
 776                 if (ic->ic_opmode == IEEE80211_M_HOSTAP)
 777                         break;
 778                 len--;                  /* XXX: tx rate? */
 779                 /* FALLTHRU */
 780         case WI_RID_CHANNEL_LIST:
 781                 memset(chanlist, 0, sizeof(chanlist));
 782                 /*
 783                  * Since channel 0 is not available for DS, channel 1
 784                  * is assigned to LSB on WaveLAN.
 785                  */
 786                 if (ic->ic_phytype == IEEE80211_T_DS)
 787                         i = 1;
 788                 else
 789                         i = 0;
 790                 for (j = 0; i <= IEEE80211_CHAN_MAX; i++, j++) {
 791                         if ((j / 8) >= len)
 792                                 break;
 793                         if (isclr((uint8_t *)wreq.wi_val, j))
 794                                 continue;
 795                         if (isclr(ic->ic_chan_active, i)) {
 796                                 if (wreq.wi_type != WI_RID_CHANNEL_LIST)
 797                                         continue;
 798                                 if (isclr(ic->ic_chan_avail, i))
 799                                         return EPERM;
 800                         }
 801                         setbit(chanlist, i);
 802                 }
 803                 error = ieee80211_setupscan(ic, chanlist);
 804                 if (wreq.wi_type == WI_RID_CHANNEL_LIST) {
 805                         /* NB: ignore error from ieee80211_setupscan */
 806                         error = ENETRESET;
 807                 } else if (error == 0)
 808                         error = ieee80211_new_state(ic, IEEE80211_S_SCAN, -1);
 809                 break;
 810         default:
 811                 error = EINVAL;
 812                 break;
 813         }
 814         if (error == ENETRESET && !IS_UP_AUTO(ic))
 815                 error = 0;
 816         return error;
 817 }
 818
 819 static int
 820 cap2cipher(int flag)
 821 {
 822         switch (flag) {
 823         case IEEE80211_C_WEP:           return IEEE80211_CIPHER_WEP;
 824         case IEEE80211_C_AES:           return IEEE80211_CIPHER_AES_OCB;
 825         case IEEE80211_C_AES_CCM:       return IEEE80211_CIPHER_AES_CCM;
 826         case IEEE80211_C_CKIP:          return IEEE80211_CIPHER_CKIP;
 827         case IEEE80211_C_TKIP:          return IEEE80211_CIPHER_TKIP;
 828         }
 829         return -1;
 830 }
 831
 832 static int
 833 ieee80211_ioctl_getkey(struct ieee80211com *ic, struct ieee80211req *ireq,
 834                        struct ucred *cr)
 835 {
 836         struct ieee80211_node *ni;
 837         struct ieee80211req_key ik;
 838         struct ieee80211_key *wk;
 839         const struct ieee80211_cipher *cip;
 840         u_int kid;
 841         int error;
 842
 843         if (ireq->i_len != sizeof(ik))
 844                 return EINVAL;
 845         error = copyin(ireq->i_data, &ik, sizeof(ik));
 846         if (error)
 847                 return error;
 848         kid = ik.ik_keyix;
 849         if (kid == IEEE80211_KEYIX_NONE) {
 850                 ni = ieee80211_find_node(&ic->ic_sta, ik.ik_macaddr);
 851                 if (ni == NULL)
 852                         return EINVAL;          /* XXX */
 853                 wk = &ni->ni_ucastkey;
 854         } else {
 855                 if (kid >= IEEE80211_WEP_NKID)
 856                         return EINVAL;
 857                 wk = &ic->ic_nw_keys[kid];
 858                 IEEE80211_ADDR_COPY(&ik.ik_macaddr, ic->ic_bss->ni_macaddr);
 859                 ni = NULL;
 860         }
 861         cip = wk->wk_cipher;
 862         ik.ik_type = cip->ic_cipher;
 863         ik.ik_keylen = wk->wk_keylen;
 864         ik.ik_flags = wk->wk_flags & (IEEE80211_KEY_XMIT | IEEE80211_KEY_RECV);
 865         if (wk->wk_keyix == ic->ic_def_txkey)
 866                 ik.ik_flags |= IEEE80211_KEY_DEFAULT;
 867         if (suser_cred(cr, NULL_CRED_OKAY) == 0) {
 868                 /* NB: only root can read key data */
 869                 ik.ik_keyrsc = wk->wk_keyrsc;
 870                 ik.ik_keytsc = wk->wk_keytsc;
 871                 memcpy(ik.ik_keydata, wk->wk_key, wk->wk_keylen);
 872                 if (cip->ic_cipher == IEEE80211_CIPHER_TKIP) {
 873                         memcpy(ik.ik_keydata+wk->wk_keylen,
 874                                 wk->wk_key + IEEE80211_KEYBUF_SIZE,
 875                                 IEEE80211_MICBUF_SIZE);
 876                         ik.ik_keylen += IEEE80211_MICBUF_SIZE;
 877                 }
 878         } else {
 879                 ik.ik_keyrsc = 0;
 880                 ik.ik_keytsc = 0;
 881                 memset(ik.ik_keydata, 0, sizeof(ik.ik_keydata));
 882         }
 883         if (ni != NULL)
 884                 ieee80211_free_node(ni);
 885         return copyout(&ik, ireq->i_data, sizeof(ik));
 886 }
 887
 888 static int
 889 ieee80211_ioctl_getchanlist(struct ieee80211com *ic, struct ieee80211req *ireq)
 890 {
 891
 892         if (sizeof(ic->ic_chan_active) < ireq->i_len)
 893                 ireq->i_len = sizeof(ic->ic_chan_active);
 894         return copyout(&ic->ic_chan_active, ireq->i_data, ireq->i_len);
 895 }
 896
 897 static int
 898 ieee80211_ioctl_getchaninfo(struct ieee80211com *ic, struct ieee80211req *ireq)
 899 {
 900         struct ieee80211req_chaninfo chans;     /* XXX off stack? */
 901         int i, space;
 902
 903         /*
 904          * Since channel 0 is not available for DS, channel 1
 905          * is assigned to LSB on WaveLAN.
 906          */
 907         if (ic->ic_phytype == IEEE80211_T_DS)
 908                 i = 1;
 909         else
 910                 i = 0;
 911         memset(&chans, 0, sizeof(chans));
 912         for (; i <= IEEE80211_CHAN_MAX; i++)
 913                 if (isset(ic->ic_chan_avail, i)) {
 914                         struct ieee80211_channel *c = &ic->ic_channels[i];
 915                         chans.ic_chans[chans.ic_nchans].ic_freq = c->ic_freq;
 916                         chans.ic_chans[chans.ic_nchans].ic_flags = c->ic_flags;
 917                         chans.ic_nchans++;
 918                 }
 919         space = __offsetof(struct ieee80211req_chaninfo,
 920                         ic_chans[chans.ic_nchans]);
 921         if (space > ireq->i_len)
 922                 space = ireq->i_len;
 923         return copyout(&chans, ireq->i_data, space);
 924 }
 925
 926 static int
 927 ieee80211_ioctl_getwpaie(struct ieee80211com *ic, struct ieee80211req *ireq)
 928 {
 929         struct ieee80211_node *ni;
 930         struct ieee80211req_wpaie wpaie;
 931         int error;
 932
 933         if (ireq->i_len < IEEE80211_ADDR_LEN)
 934                 return EINVAL;
 935         error = copyin(ireq->i_data, wpaie.wpa_macaddr, IEEE80211_ADDR_LEN);
 936         if (error != 0)
 937                 return error;
 938         ni = ieee80211_find_node(&ic->ic_sta, wpaie.wpa_macaddr);
 939         if (ni == NULL)
 940                 return EINVAL;          /* XXX */
 941         memset(wpaie.wpa_ie, 0, sizeof(wpaie.wpa_ie));
 942         if (ni->ni_wpa_ie != NULL) {
 943                 int ielen = ni->ni_wpa_ie[1] + 2;
 944                 if (ielen > sizeof(wpaie.wpa_ie))
 945                         ielen = sizeof(wpaie.wpa_ie);
 946                 memcpy(wpaie.wpa_ie, ni->ni_wpa_ie, ielen);
 947         }
 948         ieee80211_free_node(ni);
 949         if (ireq->i_len > sizeof(wpaie))
 950                 ireq->i_len = sizeof(wpaie);
 951         return copyout(&wpaie, ireq->i_data, ireq->i_len);
 952 }
 953
 954 static int
 955 ieee80211_ioctl_getstastats(struct ieee80211com *ic, struct ieee80211req *ireq)
 956 {
 957         struct ieee80211_node *ni;
 958         uint8_t macaddr[IEEE80211_ADDR_LEN];
 959         const int off = __offsetof(struct ieee80211req_sta_stats, is_stats);
 960         int error;
 961
 962         if (ireq->i_len < off)
 963                 return EINVAL;
 964         error = copyin(ireq->i_data, macaddr, IEEE80211_ADDR_LEN);
 965         if (error != 0)
 966                 return error;
 967         ni = ieee80211_find_node(&ic->ic_sta, macaddr);
 968         if (ni == NULL) {
 969                 /* XXX special-case sta-mode until bss is node in ic_sta */
 970                 if (ic->ic_opmode != IEEE80211_M_STA)
 971                         return ENOENT;
 972                 ni = ieee80211_ref_node(ic->ic_bss);
 973         }
 974         if (ireq->i_len > sizeof(struct ieee80211req_sta_stats))
 975                 ireq->i_len = sizeof(struct ieee80211req_sta_stats);
 976         /* NB: copy out only the statistics */
 977         error = copyout(&ni->ni_stats, (uint8_t *) ireq->i_data + off,
 978                         ireq->i_len - off);
 979         ieee80211_free_node(ni);
 980         return error;
 981 }
 982
 983 static void
 984 get_scan_result(struct ieee80211req_scan_result *sr,
 985         const struct ieee80211_node *ni)
 986 {
 987         struct ieee80211com *ic = ni->ni_ic;
 988         u_int ielen = 0;
 989
 990         memset(sr, 0, sizeof(*sr));
 991         sr->isr_ssid_len = ni->ni_esslen;
 992         if (ni->ni_wpa_ie != NULL)
 993                 ielen += 2+ni->ni_wpa_ie[1];
 994         if (ni->ni_wme_ie != NULL)
 995                 ielen += 2+ni->ni_wme_ie[1];
 996
 997         /*
 998          * The value sr->isr_ie_len is defined as a uint8_t, so we
 999          * need to be careful to avoid an integer overflow.  If the
1000          * value would overflow, we will set isr_ie_len to zero, and
1001          * ieee80211_ioctl_getscanresults (below) will avoid copying
1002          * the (overflowing) data.
1003          */
1004         if (ielen > 255)
1005                 ielen = 0;
1006         sr->isr_ie_len = ielen;
1007         sr->isr_len = sizeof(*sr) + sr->isr_ssid_len + sr->isr_ie_len;
1008         sr->isr_len = roundup(sr->isr_len, sizeof(uint32_t));
1009         if (ni->ni_chan != IEEE80211_CHAN_ANYC) {
1010                 sr->isr_freq = ni->ni_chan->ic_freq;
1011                 sr->isr_flags = ni->ni_chan->ic_flags;
1012         }
1013         sr->isr_rssi = ic->ic_node_getrssi(ni);
1014         sr->isr_intval = ni->ni_intval;
1015         sr->isr_capinfo = ni->ni_capinfo;       /* deprecated */
1016         sr->isr_capinfo2 = ni->ni_capinfo;
1017         sr->isr_erp = ni->ni_erp;
1018         IEEE80211_ADDR_COPY(sr->isr_bssid, ni->ni_bssid);
1019         sr->isr_nrates = ni->ni_rates.rs_nrates;
1020         if (sr->isr_nrates > 15)
1021                 sr->isr_nrates = 15;
1022         memcpy(sr->isr_rates, ni->ni_rates.rs_rates, sr->isr_nrates);
1023 }
1024
1025 static int
1026 ieee80211_ioctl_getscanresults(struct ieee80211com *ic, struct ieee80211req *ireq)
1027 {
1028         union {
1029                 struct ieee80211req_scan_result res;
1030                 char data[512];         /* XXX shrink? */
1031         } u;
1032         struct ieee80211req_scan_result *sr = &u.res;
1033         struct ieee80211_node_table *nt;
1034         struct ieee80211_node *ni;
1035         int error, space;
1036         uint8_t *p, *cp;
1037
1038         p = ireq->i_data;
1039         space = ireq->i_len;
1040         error = 0;
1041         /* XXX locking */
1042         nt =  &ic->ic_scan;
1043         TAILQ_FOREACH(ni, &nt->nt_node, ni_list) {
1044                 /* NB: skip pre-scan node state */
1045                 if (ni->ni_chan == IEEE80211_CHAN_ANYC)
1046                         continue;
1047                 get_scan_result(sr, ni);
1048                 if (sr->isr_len > sizeof(u))
1049                         continue;               /* XXX */
1050                 if (space < sr->isr_len)
1051                         break;
1052                 cp = (uint8_t *)(sr+1);
1053                 memcpy(cp, ni->ni_essid, ni->ni_esslen);
1054                 cp += ni->ni_esslen;
1055                 if (sr->isr_ie_len > 0 && ni->ni_wpa_ie != NULL) {
1056                         memcpy(cp, ni->ni_wpa_ie, 2+ni->ni_wpa_ie[1]);
1057                         cp += 2+ni->ni_wpa_ie[1];
1058                 }
1059                 if (sr->isr_ie_len > 0 && ni->ni_wme_ie != NULL) {
1060                         memcpy(cp, ni->ni_wme_ie, 2+ni->ni_wme_ie[1]);
1061                         cp += 2+ni->ni_wme_ie[1];
1062                 }
1063                 error = copyout(sr, p, sr->isr_len);
1064                 if (error)
1065                         break;
1066                 p += sr->isr_len;
1067                 space -= sr->isr_len;
1068         }
1069         ireq->i_len -= space;
1070         return error;
1071 }
1072
1073 struct stainforeq {
1074         struct ieee80211com *ic;
1075         struct ieee80211req_sta_info *si;
1076         size_t  space;
1077 };
1078
1079 static size_t
1080 sta_space(const struct ieee80211_node *ni, size_t *ielen)
1081 {
1082         *ielen = 0;
1083         if (ni->ni_wpa_ie != NULL)
1084                 *ielen += 2+ni->ni_wpa_ie[1];
1085         if (ni->ni_wme_ie != NULL)
1086                 *ielen += 2+ni->ni_wme_ie[1];
1087         return roundup(sizeof(struct ieee80211req_sta_info) + *ielen,
1088                       sizeof(uint32_t));
1089 }
1090
1091 static void
1092 get_sta_space(void *arg, struct ieee80211_node *ni)
1093 {
1094         struct stainforeq *req = arg;
1095         struct ieee80211com *ic = ni->ni_ic;
1096         size_t ielen;
1097
1098         if (ic->ic_opmode == IEEE80211_M_HOSTAP &&
1099             ni->ni_associd == 0)        /* only associated stations */
1100                 return;
1101         req->space += sta_space(ni, &ielen);
1102 }
1103
1104 static void
1105 get_sta_info(void *arg, struct ieee80211_node *ni)
1106 {
1107         struct stainforeq *req = arg;
1108         struct ieee80211com *ic = ni->ni_ic;
1109         struct ieee80211req_sta_info *si;
1110         size_t ielen, len;
1111         uint8_t *cp;
1112
1113         if (ic->ic_opmode == IEEE80211_M_HOSTAP &&
1114             ni->ni_associd == 0)        /* only associated stations */
1115                 return;
1116         if (ni->ni_chan == IEEE80211_CHAN_ANYC) /* XXX bogus entry */
1117                 return;
1118         len = sta_space(ni, &ielen);
1119         if (len > req->space)
1120                 return;
1121         si = req->si;
1122         si->isi_len = len;
1123         si->isi_ie_len = ielen;
1124         si->isi_freq = ni->ni_chan->ic_freq;
1125         si->isi_flags = ni->ni_chan->ic_flags;
1126         si->isi_state = ni->ni_flags;
1127         si->isi_authmode = ni->ni_authmode;
1128         si->isi_rssi = ic->ic_node_getrssi(ni);
1129         si->isi_noise = 0;      /* XXX */
1130         si->isi_capinfo = ni->ni_capinfo;       /* deprecated */
1131         si->isi_capinfo2 = ni->ni_capinfo;
1132         si->isi_erp = ni->ni_erp;
1133         IEEE80211_ADDR_COPY(si->isi_macaddr, ni->ni_macaddr);
1134         si->isi_nrates = ni->ni_rates.rs_nrates;
1135         if (si->isi_nrates > 15)
1136                 si->isi_nrates = 15;
1137         memcpy(si->isi_rates, ni->ni_rates.rs_rates, si->isi_nrates);
1138         si->isi_txrate = ni->ni_txrate;
1139         si->isi_associd = ni->ni_associd;
1140         si->isi_txpower = ni->ni_txpower;
1141         si->isi_vlan = ni->ni_vlan;
1142         if (ni->ni_flags & IEEE80211_NODE_QOS) {
1143                 memcpy(si->isi_txseqs, ni->ni_txseqs, sizeof(ni->ni_txseqs));
1144                 memcpy(si->isi_rxseqs, ni->ni_rxseqs, sizeof(ni->ni_rxseqs));
1145         } else {
1146                 si->isi_txseqs[0] = ni->ni_txseqs[0];
1147                 si->isi_rxseqs[0] = ni->ni_rxseqs[0];
1148         }
1149         /* NB: leave all cases in case we relax ni_associd == 0 check */
1150         if (ieee80211_node_is_authorized(ni))
1151                 si->isi_inact = ic->ic_inact_run;
1152         else if (ni->ni_associd != 0)
1153                 si->isi_inact = ic->ic_inact_auth;
1154         else
1155                 si->isi_inact = ic->ic_inact_init;
1156         si->isi_inact = (si->isi_inact - ni->ni_inact) * IEEE80211_INACT_WAIT;
1157
1158         cp = (uint8_t *)(si+1);
1159         if (ni->ni_wpa_ie != NULL) {
1160                 memcpy(cp, ni->ni_wpa_ie, 2+ni->ni_wpa_ie[1]);
1161                 cp += 2+ni->ni_wpa_ie[1];
1162         }
1163         if (ni->ni_wme_ie != NULL) {
1164                 memcpy(cp, ni->ni_wme_ie, 2+ni->ni_wme_ie[1]);
1165                 cp += 2+ni->ni_wme_ie[1];
1166         }
1167
1168         req->si = (struct ieee80211req_sta_info *)(((uint8_t *)si) + len);
1169         req->space -= len;
1170 }
1171
1172 static int
1173 ieee80211_ioctl_getstainfo(struct ieee80211com *ic, struct ieee80211req *ireq)
1174 {
1175         uint8_t macaddr[IEEE80211_ADDR_LEN];
1176         const int off = __offsetof(struct ieee80211req_sta_req, info);
1177         struct ieee80211_node *ni;
1178         struct stainforeq req;
1179         int error;
1180
1181         if (ireq->i_len < sizeof(struct ieee80211req_sta_req))
1182                 return EFAULT;
1183         error = copyin(ireq->i_data, macaddr, IEEE80211_ADDR_LEN);
1184         if (error != 0)
1185                 return error;
1186         if (IEEE80211_ADDR_EQ(macaddr, ic->ic_ifp->if_broadcastaddr)) {
1187                 ni = NULL;
1188         } else {
1189                 ni = ieee80211_find_node(&ic->ic_sta, macaddr);
1190                 if (ni == NULL) {
1191                         /* XXX special-case sta-mode until bss is in ic_sta */
1192                         if (ic->ic_opmode != IEEE80211_M_STA)
1193                                 return EINVAL;          /* XXX */
1194                         ni = ieee80211_ref_node(ic->ic_bss);
1195                 }
1196         }
1197
1198         req.space = 0;
1199         if (ni == NULL)
1200                 ieee80211_iterate_nodes(&ic->ic_sta, get_sta_space, &req);
1201         else
1202                 get_sta_space(&req, ni);
1203         if (req.space > ireq->i_len)
1204                 req.space = ireq->i_len;
1205         if (req.space > 0) {
1206                 size_t space;
1207                 void *p;
1208
1209                 space = req.space;
1210                 /* XXX M_WAITOK after driver lock released */
1211                 p = kmalloc(space, M_TEMP, M_NOWAIT);
1212                 if (p == NULL) {
1213                         error = ENOMEM;
1214                         goto bad;
1215                 }
1216                 req.si = p;
1217                 if (ni == NULL)
1218                         ieee80211_iterate_nodes(&ic->ic_sta, get_sta_info, &req);
1219                 else
1220                         get_sta_info(&req, ni);
1221                 ireq->i_len = space - req.space;
1222                 error = copyout(p, (uint8_t *)ireq->i_data + off, ireq->i_len);
1223                 kfree(p, M_TEMP);
1224         } else {
1225                 ireq->i_len = 0;
1226         }
1227 bad:
1228         if (ni != NULL)
1229                 ieee80211_free_node(ni);
1230         return error;
1231 }
1232
1233 static int
1234 ieee80211_ioctl_getstatxpow(struct ieee80211com *ic, struct ieee80211req *ireq)
1235 {
1236         struct ieee80211_node *ni;
1237         struct ieee80211req_sta_txpow txpow;
1238         int error;
1239
1240         if (ireq->i_len != sizeof(txpow))
1241                 return EINVAL;
1242         error = copyin(ireq->i_data, &txpow, sizeof(txpow));
1243         if (error != 0)
1244                 return error;
1245         ni = ieee80211_find_node(&ic->ic_sta, txpow.it_macaddr);
1246         if (ni == NULL)
1247                 return EINVAL;          /* XXX */
1248         txpow.it_txpow = ni->ni_txpower;
1249         error = copyout(&txpow, ireq->i_data, sizeof(txpow));
1250         ieee80211_free_node(ni);
1251         return error;
1252 }
1253
1254 static int
1255 ieee80211_ioctl_getwmeparam(struct ieee80211com *ic, struct ieee80211req *ireq)
1256 {
1257         struct ieee80211_wme_state *wme = &ic->ic_wme;
1258         struct wmeParams *wmep;
1259         int ac;
1260
1261         if ((ic->ic_caps & IEEE80211_C_WME) == 0)
1262                 return EINVAL;
1263
1264         ac = (ireq->i_len & IEEE80211_WMEPARAM_VAL);
1265         if (ac >= WME_NUM_AC)
1266                 ac = WME_AC_BE;
1267         if (ireq->i_len & IEEE80211_WMEPARAM_BSS)
1268                 wmep = &wme->wme_wmeBssChanParams.cap_wmeParams[ac];
1269         else
1270                 wmep = &wme->wme_wmeChanParams.cap_wmeParams[ac];
1271         switch (ireq->i_type) {
1272         case IEEE80211_IOC_WME_CWMIN:           /* WME: CWmin */
1273                 ireq->i_val = wmep->wmep_logcwmin;
1274                 break;
1275         case IEEE80211_IOC_WME_CWMAX:           /* WME: CWmax */
1276                 ireq->i_val = wmep->wmep_logcwmax;
1277                 break;
1278         case IEEE80211_IOC_WME_AIFS:            /* WME: AIFS */
1279                 ireq->i_val = wmep->wmep_aifsn;
1280                 break;
1281         case IEEE80211_IOC_WME_TXOPLIMIT:       /* WME: txops limit */
1282                 ireq->i_val = wmep->wmep_txopLimit;
1283                 break;
1284         case IEEE80211_IOC_WME_ACM:             /* WME: ACM (bss only) */
1285                 wmep = &wme->wme_wmeBssChanParams.cap_wmeParams[ac];
1286                 ireq->i_val = wmep->wmep_acm;
1287                 break;
1288         case IEEE80211_IOC_WME_ACKPOLICY:       /* WME: ACK policy (!bss only)*/
1289                 wmep = &wme->wme_wmeChanParams.cap_wmeParams[ac];
1290                 ireq->i_val = !wmep->wmep_noackPolicy;
1291                 break;
1292         }
1293         return 0;
1294 }
1295
1296 static int
1297 ieee80211_ioctl_getmaccmd(struct ieee80211com *ic, struct ieee80211req *ireq)
1298 {
1299         const struct ieee80211_aclator *acl = ic->ic_acl;
1300
1301         return (acl == NULL ? EINVAL : acl->iac_getioctl(ic, ireq));
1302 }
1303
1304 /*
1305  * When building the kernel with -O2 on the i386 architecture, gcc
1306  * seems to want to inline this function into ieee80211_ioctl()
1307  * (which is the only routine that calls it). When this happens,
1308  * ieee80211_ioctl() ends up consuming an additional 2K of stack
1309  * space. (Exactly why it needs so much is unclear.) The problem
1310  * is that it's possible for ieee80211_ioctl() to invoke other
1311  * routines (including driver init functions) which could then find
1312  * themselves perilously close to exhausting the stack.
1313  *
1314  * To avoid this, we deliberately prevent gcc from inlining this
1315  * routine. Another way to avoid this is to use less agressive
1316  * optimization when compiling this file (i.e. -O instead of -O2)
1317  * but special-casing the compilation of this one module in the
1318  * build system would be awkward.
1319  */
1320 #ifdef __GNUC__
1321 __attribute__ ((noinline))
1322 #endif
1323 static int
1324 ieee80211_ioctl_get80211(struct ieee80211com *ic, u_long cmd,
1325                          struct ieee80211req *ireq, struct ucred *cr)
1326 {
1327         const struct ieee80211_rsnparms *rsn = &ic->ic_bss->ni_rsn;
1328         int error = 0;
1329         u_int kid, len, m;
1330         uint8_t tmpkey[IEEE80211_KEYBUF_SIZE];
1331         char tmpssid[IEEE80211_NWID_LEN];
1332
1333         switch (ireq->i_type) {
1334         case IEEE80211_IOC_SSID:
1335                 switch (ic->ic_state) {
1336                 case IEEE80211_S_INIT:
1337                 case IEEE80211_S_SCAN:
1338                         ireq->i_len = ic->ic_des_esslen;
1339                         memcpy(tmpssid, ic->ic_des_essid, ireq->i_len);
1340                         break;
1341                 default:
1342                         ireq->i_len = ic->ic_bss->ni_esslen;
1343                         memcpy(tmpssid, ic->ic_bss->ni_essid,
1344                                 ireq->i_len);
1345                         break;
1346                 }
1347                 error = copyout(tmpssid, ireq->i_data, ireq->i_len);
1348                 break;
1349         case IEEE80211_IOC_NUMSSIDS:
1350                 ireq->i_val = 1;
1351                 break;
1352         case IEEE80211_IOC_WEP:
1353                 if ((ic->ic_flags & IEEE80211_F_PRIVACY) == 0)
1354                         ireq->i_val = IEEE80211_WEP_OFF;
1355                 else if (ic->ic_flags & IEEE80211_F_DROPUNENC)
1356                         ireq->i_val = IEEE80211_WEP_ON;
1357                 else
1358                         ireq->i_val = IEEE80211_WEP_MIXED;
1359                 break;
1360         case IEEE80211_IOC_WEPKEY:
1361                 kid = (u_int) ireq->i_val;
1362                 if (kid >= IEEE80211_WEP_NKID)
1363                         return EINVAL;
1364                 len = (u_int) ic->ic_nw_keys[kid].wk_keylen;
1365                 /* NB: only root can read WEP keys */
1366                 if (suser_cred(cr, NULL_CRED_OKAY) == 0) {
1367                         bcopy(ic->ic_nw_keys[kid].wk_key, tmpkey, len);
1368                 } else {
1369                         bzero(tmpkey, len);
1370                 }
1371                 ireq->i_len = len;
1372                 error = copyout(tmpkey, ireq->i_data, len);
1373                 break;
1374         case IEEE80211_IOC_NUMWEPKEYS:
1375                 ireq->i_val = IEEE80211_WEP_NKID;
1376                 break;
1377         case IEEE80211_IOC_WEPTXKEY:
1378                 ireq->i_val = ic->ic_def_txkey;
1379                 break;
1380         case IEEE80211_IOC_AUTHMODE:
1381                 if (ic->ic_flags & IEEE80211_F_WPA)
1382                         ireq->i_val = IEEE80211_AUTH_WPA;
1383                 else
1384                         ireq->i_val = ic->ic_bss->ni_authmode;
1385                 break;
1386         case IEEE80211_IOC_CHANNEL:
1387                 ireq->i_val = ieee80211_chan2ieee(ic, ic->ic_curchan);
1388                 break;
1389         case IEEE80211_IOC_POWERSAVE:
1390                 if (ic->ic_flags & IEEE80211_F_PMGTON)
1391                         ireq->i_val = IEEE80211_POWERSAVE_ON;
1392                 else
1393                         ireq->i_val = IEEE80211_POWERSAVE_OFF;
1394                 break;
1395         case IEEE80211_IOC_POWERSAVESLEEP:
1396                 ireq->i_val = ic->ic_lintval;
1397                 break;
1398         case IEEE80211_IOC_RTSTHRESHOLD:
1399                 ireq->i_val = ic->ic_rtsthreshold;
1400                 break;
1401         case IEEE80211_IOC_PROTMODE:
1402                 ireq->i_val = ic->ic_protmode;
1403                 break;
1404         case IEEE80211_IOC_TXPOWER:
1405                 if ((ic->ic_caps & IEEE80211_C_TXPMGT) == 0)
1406                         return EINVAL;
1407                 ireq->i_val = ic->ic_txpowlimit;
1408                 break;
1409         case IEEE80211_IOC_MCASTCIPHER:
1410                 ireq->i_val = rsn->rsn_mcastcipher;
1411                 break;
1412         case IEEE80211_IOC_MCASTKEYLEN:
1413                 ireq->i_val = rsn->rsn_mcastkeylen;
1414                 break;
1415         case IEEE80211_IOC_UCASTCIPHERS:
1416                 ireq->i_val = 0;
1417                 for (m = 0x1; m != 0; m <<= 1)
1418                         if (rsn->rsn_ucastcipherset & m)
1419                                 ireq->i_val |= 1<<cap2cipher(m);
1420                 break;
1421         case IEEE80211_IOC_UCASTCIPHER:
1422                 ireq->i_val = rsn->rsn_ucastcipher;
1423                 break;
1424         case IEEE80211_IOC_UCASTKEYLEN:
1425                 ireq->i_val = rsn->rsn_ucastkeylen;
1426                 break;
1427         case IEEE80211_IOC_KEYMGTALGS:
1428                 ireq->i_val = rsn->rsn_keymgmtset;
1429                 break;
1430         case IEEE80211_IOC_RSNCAPS:
1431                 ireq->i_val = rsn->rsn_caps;
1432                 break;
1433         case IEEE80211_IOC_WPA:
1434                 switch (ic->ic_flags & IEEE80211_F_WPA) {
1435                 case IEEE80211_F_WPA1:
1436                         ireq->i_val = 1;
1437                         break;
1438                 case IEEE80211_F_WPA2:
1439                         ireq->i_val = 2;
1440                         break;
1441                 case IEEE80211_F_WPA1 | IEEE80211_F_WPA2:
1442                         ireq->i_val = 3;
1443                         break;
1444                 default:
1445                         ireq->i_val = 0;
1446                         break;
1447                 }
1448                 break;
1449         case IEEE80211_IOC_CHANLIST:
1450                 error = ieee80211_ioctl_getchanlist(ic, ireq);
1451                 break;
1452         case IEEE80211_IOC_ROAMING:
1453                 ireq->i_val = ic->ic_roaming;
1454                 break;
1455         case IEEE80211_IOC_PRIVACY:
1456                 ireq->i_val = (ic->ic_flags & IEEE80211_F_PRIVACY) != 0;
1457                 break;
1458         case IEEE80211_IOC_DROPUNENCRYPTED:
1459                 ireq->i_val = (ic->ic_flags & IEEE80211_F_DROPUNENC) != 0;
1460                 break;
1461         case IEEE80211_IOC_COUNTERMEASURES:
1462                 ireq->i_val = (ic->ic_flags & IEEE80211_F_COUNTERM) != 0;
1463                 break;
1464         case IEEE80211_IOC_DRIVER_CAPS:
1465                 if (ireq->i_len >= sizeof(ic->ic_caps_ext)) {
1466                         error = copyout(&ic->ic_caps_ext, ireq->i_data,
1467                                         sizeof(ic->ic_caps_ext));
1468                 }
1469                 if (error == 0) {
1470                         ireq->i_val = ic->ic_caps >> 16;
1471                         ireq->i_len = ic->ic_caps & 0xffff;
1472                 }
1473                 break;
1474         case IEEE80211_IOC_WME:
1475                 ireq->i_val = (ic->ic_flags & IEEE80211_F_WME) != 0;
1476                 break;
1477         case IEEE80211_IOC_HIDESSID:
1478                 ireq->i_val = (ic->ic_flags & IEEE80211_F_HIDESSID) != 0;
1479                 break;
1480         case IEEE80211_IOC_APBRIDGE:
1481                 ireq->i_val = (ic->ic_flags & IEEE80211_F_NOBRIDGE) == 0;
1482                 break;
1483         case IEEE80211_IOC_OPTIE:
1484                 if (ic->ic_opt_ie == NULL)
1485                         return EINVAL;
1486                 /* NB: truncate, caller can check length */
1487                 if (ireq->i_len > ic->ic_opt_ie_len)
1488                         ireq->i_len = ic->ic_opt_ie_len;
1489                 error = copyout(ic->ic_opt_ie, ireq->i_data, ireq->i_len);
1490                 break;
1491         case IEEE80211_IOC_WPAKEY:
1492                 error = ieee80211_ioctl_getkey(ic, ireq, cr);
1493                 break;
1494         case IEEE80211_IOC_CHANINFO:
1495                 error = ieee80211_ioctl_getchaninfo(ic, ireq);
1496                 break;
1497         case IEEE80211_IOC_BSSID:
1498                 if (ireq->i_len != IEEE80211_ADDR_LEN)
1499                         return EINVAL;
1500                 error = copyout(ic->ic_state == IEEE80211_S_RUN ?
1501                                         ic->ic_bss->ni_bssid :
1502                                         ic->ic_des_bssid,
1503                                 ireq->i_data, ireq->i_len);
1504                 break;
1505         case IEEE80211_IOC_WPAIE:
1506                 error = ieee80211_ioctl_getwpaie(ic, ireq);
1507                 break;
1508         case IEEE80211_IOC_SCAN_RESULTS:
1509                 error = ieee80211_ioctl_getscanresults(ic, ireq);
1510                 break;
1511         case IEEE80211_IOC_STA_STATS:
1512                 error = ieee80211_ioctl_getstastats(ic, ireq);
1513                 break;
1514         case IEEE80211_IOC_TXPOWMAX:
1515                 ireq->i_val = ic->ic_bss->ni_txpower;
1516                 break;
1517         case IEEE80211_IOC_STA_TXPOW:
1518                 error = ieee80211_ioctl_getstatxpow(ic, ireq);
1519                 break;
1520         case IEEE80211_IOC_STA_INFO:
1521                 error = ieee80211_ioctl_getstainfo(ic, ireq);
1522                 break;
1523         case IEEE80211_IOC_WME_CWMIN:           /* WME: CWmin */
1524         case IEEE80211_IOC_WME_CWMAX:           /* WME: CWmax */
1525         case IEEE80211_IOC_WME_AIFS:            /* WME: AIFS */
1526         case IEEE80211_IOC_WME_TXOPLIMIT:       /* WME: txops limit */
1527         case IEEE80211_IOC_WME_ACM:             /* WME: ACM (bss only) */
1528         case IEEE80211_IOC_WME_ACKPOLICY:       /* WME: ACK policy (bss only) */
1529                 error = ieee80211_ioctl_getwmeparam(ic, ireq);
1530                 break;
1531         case IEEE80211_IOC_DTIM_PERIOD:
1532                 ireq->i_val = ic->ic_dtim_period;
1533                 break;
1534         case IEEE80211_IOC_BEACON_INTERVAL:
1535                 /* NB: get from ic_bss for station mode */
1536                 ireq->i_val = ic->ic_bss->ni_intval;
1537                 break;
1538         case IEEE80211_IOC_PUREG:
1539                 ireq->i_val = (ic->ic_flags & IEEE80211_F_PUREG) != 0;
1540                 break;
1541         case IEEE80211_IOC_MCAST_RATE:
1542                 ireq->i_val = ic->ic_mcast_rate;
1543                 break;
1544         case IEEE80211_IOC_FRAGTHRESHOLD:
1545                 ireq->i_val = ic->ic_fragthreshold;
1546                 break;
1547         case IEEE80211_IOC_MACCMD:
1548                 error = ieee80211_ioctl_getmaccmd(ic, ireq);
1549                 break;
1550         case IEEE80211_IOC_BURST:
1551                 ireq->i_val = (ic->ic_flags & IEEE80211_F_BURST) != 0;
1552                 break;
1553         case IEEE80211_IOC_RATECTL:
1554                 ireq->i_val = ic->ic_ratectl.rc_st_ratectl;
1555                 break;
1556         case IEEE80211_IOC_BMISSTHRESHOLD:
1557                 ireq->i_val = ic->ic_bmissthreshold;
1558                 break;
1559         default:
1560                 error = EINVAL;
1561                 break;
1562         }
1563         return error;
1564 }
1565
1566 static int
1567 ieee80211_ioctl_setoptie(struct ieee80211com *ic, struct ieee80211req *ireq)
1568 {
1569         int error;
1570         void *ie, *oie;
1571
1572         /*
1573          * NB: Doing this for ap operation could be useful (e.g. for
1574          *     WPA and/or WME) except that it typically is worthless
1575          *     without being able to intervene when processing
1576          *     association response frames--so disallow it for now.
1577          */
1578         if (ic->ic_opmode != IEEE80211_M_STA)
1579                 return EINVAL;
1580         if (ireq->i_len > IEEE80211_MAX_OPT_IE)
1581                 return EINVAL;
1582         if (ireq->i_len > 0) {
1583                 ie = kmalloc(ireq->i_len, M_DEVBUF, M_NOWAIT);
1584                 if (ie == NULL)
1585                         return ENOMEM;
1586                 error = copyin(ireq->i_data, ie, ireq->i_len);
1587                 if (error) {
1588                         kfree(ie, M_DEVBUF);
1589                         return error;
1590                 }
1591         } else {
1592                 ie = NULL;
1593                 ireq->i_len = 0;
1594         }
1595         /* XXX sanity check data? */
1596         oie = ic->ic_opt_ie;
1597         ic->ic_opt_ie = ie;
1598         ic->ic_opt_ie_len = ireq->i_len;
1599         if (oie != NULL)
1600                 kfree(oie, M_DEVBUF);
1601         return 0;
1602 }
1603
1604 static int
1605 ieee80211_ioctl_setkey(struct ieee80211com *ic, struct ieee80211req *ireq)
1606 {
1607         struct ieee80211req_key ik;
1608         struct ieee80211_node *ni;
1609         struct ieee80211_key *wk;
1610         uint16_t kid;
1611         int error;
1612
1613         if (ireq->i_len != sizeof(ik))
1614                 return EINVAL;
1615         error = copyin(ireq->i_data, &ik, sizeof(ik));
1616         if (error)
1617                 return error;
1618         /* NB: cipher support is verified by ieee80211_crypt_newkey */
1619         /* NB: this also checks ik->ik_keylen > sizeof(wk->wk_key) */
1620         if (ik.ik_keylen > sizeof(ik.ik_keydata))
1621                 return E2BIG;
1622         kid = ik.ik_keyix;
1623         if (kid == IEEE80211_KEYIX_NONE) {
1624                 /* XXX unicast keys currently must be tx/rx */
1625                 if (ik.ik_flags != (IEEE80211_KEY_XMIT | IEEE80211_KEY_RECV))
1626                         return EINVAL;
1627                 if (ic->ic_opmode == IEEE80211_M_STA) {
1628                         ni = ieee80211_ref_node(ic->ic_bss);
1629                         if (!IEEE80211_ADDR_EQ(ik.ik_macaddr, ni->ni_bssid)) {
1630                                 ieee80211_free_node(ni);
1631                                 return EADDRNOTAVAIL;
1632                         }
1633                 } else {
1634                         ni = ieee80211_find_node(&ic->ic_sta, ik.ik_macaddr);
1635                         if (ni == NULL)
1636                                 return ENOENT;
1637                 }
1638                 wk = &ni->ni_ucastkey;
1639         } else {
1640                 if (kid >= IEEE80211_WEP_NKID)
1641                         return EINVAL;
1642                 wk = &ic->ic_nw_keys[kid];
1643                 /*
1644                  * Global slots start off w/o any assigned key index.
1645                  * Force one here for consistency with IEEE80211_IOC_WEPKEY.
1646                  */
1647                 if (wk->wk_keyix == IEEE80211_KEYIX_NONE)
1648                         wk->wk_keyix = kid;
1649                 ni = NULL;
1650         }
1651         error = 0;
1652         ieee80211_key_update_begin(ic);
1653         if (ieee80211_crypto_newkey(ic, ik.ik_type, ik.ik_flags, wk)) {
1654                 wk->wk_keylen = ik.ik_keylen;
1655                 /* NB: MIC presence is implied by cipher type */
1656                 if (wk->wk_keylen > IEEE80211_KEYBUF_SIZE)
1657                         wk->wk_keylen = IEEE80211_KEYBUF_SIZE;
1658                 wk->wk_keyrsc = ik.ik_keyrsc;
1659                 wk->wk_keytsc = 0;                      /* new key, reset */
1660                 memset(wk->wk_key, 0, sizeof(wk->wk_key));
1661                 memcpy(wk->wk_key, ik.ik_keydata, ik.ik_keylen);
1662                 if (!ieee80211_crypto_setkey(ic, wk,
1663                     ni != NULL ? ni->ni_macaddr : ik.ik_macaddr))
1664                         error = EIO;
1665                 else if ((ik.ik_flags & IEEE80211_KEY_DEFAULT))
1666                         ic->ic_def_txkey = kid;
1667         } else
1668                 error = ENXIO;
1669         ieee80211_key_update_end(ic);
1670         if (ni != NULL)
1671                 ieee80211_free_node(ni);
1672         return error;
1673 }
1674
1675 static int
1676 ieee80211_ioctl_delkey(struct ieee80211com *ic, struct ieee80211req *ireq)
1677 {
1678         struct ieee80211req_del_key dk;
1679         int kid, error;
1680
1681         if (ireq->i_len != sizeof(dk))
1682                 return EINVAL;
1683         error = copyin(ireq->i_data, &dk, sizeof(dk));
1684         if (error)
1685                 return error;
1686         kid = dk.idk_keyix;
1687         /* XXX uint8_t -> uint16_t */
1688         if (dk.idk_keyix == (uint8_t)IEEE80211_KEYIX_NONE) {
1689                 struct ieee80211_node *ni;
1690
1691                 if (ic->ic_opmode == IEEE80211_M_STA) {
1692                         ni = ieee80211_ref_node(ic->ic_bss);
1693                         if (!IEEE80211_ADDR_EQ(dk.idk_macaddr, ni->ni_bssid)) {
1694                                 ieee80211_free_node(ni);
1695                                 return EADDRNOTAVAIL;
1696                         }
1697                 } else {
1698                         ni = ieee80211_find_node(&ic->ic_sta, dk.idk_macaddr);
1699                         if (ni == NULL)
1700                                 return ENOENT;
1701                 }
1702                 /* XXX error return */
1703                 ieee80211_node_delucastkey(ni);
1704                 ieee80211_free_node(ni);
1705         } else {
1706                 if (kid >= IEEE80211_WEP_NKID)
1707                         return EINVAL;
1708                 /* XXX error return */
1709                 ieee80211_crypto_delkey(ic, &ic->ic_nw_keys[kid]);
1710         }
1711         return 0;
1712 }
1713
1714 static void
1715 domlme(void *arg, struct ieee80211_node *ni)
1716 {
1717         struct ieee80211com *ic = ni->ni_ic;
1718         struct ieee80211req_mlme *mlme = arg;
1719
1720         if (ni->ni_associd != 0) {
1721                 IEEE80211_SEND_MGMT(ic, ni,
1722                         mlme->im_op == IEEE80211_MLME_DEAUTH ?
1723                                 IEEE80211_FC0_SUBTYPE_DEAUTH :
1724                                 IEEE80211_FC0_SUBTYPE_DISASSOC,
1725                         mlme->im_reason);
1726         }
1727         ieee80211_node_leave(ic, ni);
1728 }
1729
1730 static int
1731 ieee80211_ioctl_setmlme(struct ieee80211com *ic, struct ieee80211req *ireq)
1732 {
1733         struct ieee80211req_mlme mlme;
1734         struct ieee80211_node *ni;
1735         int error;
1736
1737         if (ireq->i_len != sizeof(mlme))
1738                 return EINVAL;
1739         error = copyin(ireq->i_data, &mlme, sizeof(mlme));
1740         if (error)
1741                 return error;
1742         switch (mlme.im_op) {
1743         case IEEE80211_MLME_ASSOC:
1744                 if (ic->ic_opmode != IEEE80211_M_STA)
1745                         return EINVAL;
1746                 /* XXX must be in S_SCAN state? */
1747
1748                 if (mlme.im_ssid_len != 0) {
1749                         /*
1750                          * Desired ssid specified; must match both bssid and
1751                          * ssid to distinguish ap advertising multiple ssid's.
1752                          */
1753                         ni = ieee80211_find_node_with_ssid(&ic->ic_scan,
1754                                 mlme.im_macaddr,
1755                                 mlme.im_ssid_len, mlme.im_ssid);
1756                 } else {
1757                         /*
1758                          * Normal case; just match bssid.
1759                          */
1760                         ni = ieee80211_find_node(&ic->ic_scan, mlme.im_macaddr);
1761                 }
1762                 if (ni == NULL)
1763                         return EINVAL;
1764                 if (!ieee80211_sta_join(ic, ni)) {
1765                         ieee80211_free_node(ni);
1766                         return EINVAL;
1767                 }
1768                 break;
1769         case IEEE80211_MLME_DISASSOC:
1770         case IEEE80211_MLME_DEAUTH:
1771                 switch (ic->ic_opmode) {
1772                 case IEEE80211_M_STA:
1773                         /* XXX not quite right */
1774                         ieee80211_new_state(ic, IEEE80211_S_INIT,
1775                                 mlme.im_reason);
1776                         break;
1777                 case IEEE80211_M_HOSTAP:
1778                         /* NB: the broadcast address means do 'em all */
1779                         if (!IEEE80211_ADDR_EQ(mlme.im_macaddr, ic->ic_ifp->if_broadcastaddr)) {
1780                                 if ((ni = ieee80211_find_node(&ic->ic_sta,
1781                                                 mlme.im_macaddr)) == NULL)
1782                                         return EINVAL;
1783                                 domlme(&mlme, ni);
1784                                 ieee80211_free_node(ni);
1785                         } else {
1786                                 ieee80211_iterate_nodes(&ic->ic_sta,
1787                                                 domlme, &mlme);
1788                         }
1789                         break;
1790                 default:
1791                         return EINVAL;
1792                 }
1793                 break;
1794         case IEEE80211_MLME_AUTHORIZE:
1795         case IEEE80211_MLME_UNAUTHORIZE:
1796                 if (ic->ic_opmode != IEEE80211_M_HOSTAP)
1797                         return EINVAL;
1798                 ni = ieee80211_find_node(&ic->ic_sta, mlme.im_macaddr);
1799                 if (ni == NULL)
1800                         return EINVAL;
1801                 if (mlme.im_op == IEEE80211_MLME_AUTHORIZE)
1802                         ieee80211_node_authorize(ni);
1803                 else
1804                         ieee80211_node_unauthorize(ni);
1805                 ieee80211_free_node(ni);
1806                 break;
1807         default:
1808                 return EINVAL;
1809         }
1810         return 0;
1811 }
1812
1813 static int
1814 ieee80211_ioctl_macmac(struct ieee80211com *ic, struct ieee80211req *ireq)
1815 {
1816         uint8_t mac[IEEE80211_ADDR_LEN];
1817         const struct ieee80211_aclator *acl = ic->ic_acl;
1818         int error;
1819
1820         if (ireq->i_len != sizeof(mac))
1821                 return EINVAL;
1822         error = copyin(ireq->i_data, mac, ireq->i_len);
1823         if (error)
1824                 return error;
1825         if (acl == NULL) {
1826                 acl = ieee80211_aclator_get("mac");
1827                 if (acl == NULL || !acl->iac_attach(ic))
1828                         return EINVAL;
1829                 ic->ic_acl = acl;
1830         }
1831         if (ireq->i_type == IEEE80211_IOC_ADDMAC)
1832                 acl->iac_add(ic, mac);
1833         else
1834                 acl->iac_remove(ic, mac);
1835         return 0;
1836 }
1837
1838 static int
1839 ieee80211_ioctl_setmaccmd(struct ieee80211com *ic, struct ieee80211req *ireq)
1840 {
1841         const struct ieee80211_aclator *acl = ic->ic_acl;
1842
1843         switch (ireq->i_val) {
1844         case IEEE80211_MACCMD_POLICY_OPEN:
1845         case IEEE80211_MACCMD_POLICY_ALLOW:
1846         case IEEE80211_MACCMD_POLICY_DENY:
1847                 if (acl == NULL) {
1848                         acl = ieee80211_aclator_get("mac");
1849                         if (acl == NULL || !acl->iac_attach(ic))
1850                                 return EINVAL;
1851                         ic->ic_acl = acl;
1852                 }
1853                 acl->iac_setpolicy(ic, ireq->i_val);
1854                 break;
1855         case IEEE80211_MACCMD_FLUSH:
1856                 if (acl != NULL)
1857                         acl->iac_flush(ic);
1858                 /* NB: silently ignore when not in use */
1859                 break;
1860         case IEEE80211_MACCMD_DETACH:
1861                 if (acl != NULL) {
1862                         ic->ic_acl = NULL;
1863                         acl->iac_detach(ic);
1864                 }
1865                 break;
1866         default:
1867                 if (acl == NULL)
1868                         return EINVAL;
1869                 else
1870                         return acl->iac_setioctl(ic, ireq);
1871         }
1872         return 0;
1873 }
1874
1875 static int
1876 ieee80211_ioctl_setchanlist(struct ieee80211com *ic, struct ieee80211req *ireq)
1877 {
1878         struct ieee80211req_chanlist list;
1879         u_char chanlist[IEEE80211_CHAN_BYTES];
1880         int i, j, error;
1881
1882         if (ireq->i_len != sizeof(list))
1883                 return EINVAL;
1884         error = copyin(ireq->i_data, &list, sizeof(list));
1885         if (error)
1886                 return error;
1887         memset(chanlist, 0, sizeof(chanlist));
1888         /*
1889          * Since channel 0 is not available for DS, channel 1
1890          * is assigned to LSB on WaveLAN.
1891          */
1892         if (ic->ic_phytype == IEEE80211_T_DS)
1893                 i = 1;
1894         else
1895                 i = 0;
1896         for (j = 0; i <= IEEE80211_CHAN_MAX; i++, j++) {
1897                 /*
1898                  * NB: silently discard unavailable channels so users
1899                  *     can specify 1-255 to get all available channels.
1900                  */
1901                 if (isset(list.ic_channels, j) && isset(ic->ic_chan_avail, i))
1902                         setbit(chanlist, i);
1903         }
1904         if (ic->ic_ibss_chan == NULL ||
1905             isclr(chanlist, ieee80211_chan2ieee(ic, ic->ic_ibss_chan))) {
1906                 for (i = 0; i <= IEEE80211_CHAN_MAX; i++)
1907                         if (isset(chanlist, i)) {
1908                                 ic->ic_ibss_chan = &ic->ic_channels[i];
1909                                 goto found;
1910                         }
1911                 return EINVAL;                  /* no active channels */
1912 found:
1913                 ;
1914         }
1915         memcpy(ic->ic_chan_active, chanlist, sizeof(ic->ic_chan_active));
1916         return IS_UP_AUTO(ic) ? ENETRESET : 0;
1917 }
1918
1919 static int
1920 ieee80211_ioctl_setstastats(struct ieee80211com *ic, struct ieee80211req *ireq)
1921 {
1922         struct ieee80211_node *ni;
1923         uint8_t macaddr[IEEE80211_ADDR_LEN];
1924         int error;
1925
1926         /*
1927          * NB: we could copyin ieee80211req_sta_stats so apps
1928          *     could make selective changes but that's overkill;
1929          *     just clear all stats for now.
1930          */
1931         if (ireq->i_len < IEEE80211_ADDR_LEN)
1932                 return EINVAL;
1933         error = copyin(ireq->i_data, macaddr, IEEE80211_ADDR_LEN);
1934         if (error != 0)
1935                 return error;
1936         ni = ieee80211_find_node(&ic->ic_sta, macaddr);
1937         if (ni == NULL)
1938                 return EINVAL;  /* XXX */
1939         memset(&ni->ni_stats, 0, sizeof(ni->ni_stats));
1940         ieee80211_free_node(ni);
1941         return 0;
1942 }
1943
1944 static int
1945 ieee80211_ioctl_setstatxpow(struct ieee80211com *ic, struct ieee80211req *ireq)
1946 {
1947         struct ieee80211_node *ni;
1948         struct ieee80211req_sta_txpow txpow;
1949         int error;
1950
1951         if (ireq->i_len != sizeof(txpow))
1952                 return EINVAL;
1953         error = copyin(ireq->i_data, &txpow, sizeof(txpow));
1954         if (error != 0)
1955                 return error;
1956         ni = ieee80211_find_node(&ic->ic_sta, txpow.it_macaddr);
1957         if (ni == NULL)
1958                 return EINVAL;          /* XXX */
1959         ni->ni_txpower = txpow.it_txpow;
1960         ieee80211_free_node(ni);
1961         return error;
1962 }
1963
1964 static int
1965 ieee80211_ioctl_setwmeparam(struct ieee80211com *ic, struct ieee80211req *ireq)
1966 {
1967         struct ieee80211_wme_state *wme = &ic->ic_wme;
1968         struct wmeParams *wmep, *chanp;
1969         int isbss, ac;
1970
1971         if ((ic->ic_caps & IEEE80211_C_WME) == 0)
1972                 return EINVAL;
1973
1974         isbss = (ireq->i_len & IEEE80211_WMEPARAM_BSS);
1975         ac = (ireq->i_len & IEEE80211_WMEPARAM_VAL);
1976         if (ac >= WME_NUM_AC)
1977                 ac = WME_AC_BE;
1978         if (isbss) {
1979                 chanp = &wme->wme_bssChanParams.cap_wmeParams[ac];
1980                 wmep = &wme->wme_wmeBssChanParams.cap_wmeParams[ac];
1981         } else {
1982                 chanp = &wme->wme_chanParams.cap_wmeParams[ac];
1983                 wmep = &wme->wme_wmeChanParams.cap_wmeParams[ac];
1984         }
1985         switch (ireq->i_type) {
1986         case IEEE80211_IOC_WME_CWMIN:           /* WME: CWmin */
1987                 if (isbss) {
1988                         wmep->wmep_logcwmin = ireq->i_val;
1989                         if ((wme->wme_flags & WME_F_AGGRMODE) == 0)
1990                                 chanp->wmep_logcwmin = ireq->i_val;
1991                 } else {
1992                         wmep->wmep_logcwmin = chanp->wmep_logcwmin =
1993                                 ireq->i_val;
1994                 }
1995                 break;
1996         case IEEE80211_IOC_WME_CWMAX:           /* WME: CWmax */
1997                 if (isbss) {
1998                         wmep->wmep_logcwmax = ireq->i_val;
1999                         if ((wme->wme_flags & WME_F_AGGRMODE) == 0)
2000                                 chanp->wmep_logcwmax = ireq->i_val;
2001                 } else {
2002                         wmep->wmep_logcwmax = chanp->wmep_logcwmax =
2003                                 ireq->i_val;
2004                 }
2005                 break;
2006         case IEEE80211_IOC_WME_AIFS:            /* WME: AIFS */
2007                 if (isbss) {
2008                         wmep->wmep_aifsn = ireq->i_val;
2009                         if ((wme->wme_flags & WME_F_AGGRMODE) == 0)
2010                                 chanp->wmep_aifsn = ireq->i_val;
2011                 } else {
2012                         wmep->wmep_aifsn = chanp->wmep_aifsn = ireq->i_val;
2013                 }
2014                 break;
2015         case IEEE80211_IOC_WME_TXOPLIMIT:       /* WME: txops limit */
2016                 if (isbss) {
2017                         wmep->wmep_txopLimit = ireq->i_val;
2018                         if ((wme->wme_flags & WME_F_AGGRMODE) == 0)
2019                                 chanp->wmep_txopLimit = ireq->i_val;
2020                 } else {
2021                         wmep->wmep_txopLimit = chanp->wmep_txopLimit =
2022                                 ireq->i_val;
2023                 }
2024                 break;
2025         case IEEE80211_IOC_WME_ACM:             /* WME: ACM (bss only) */
2026                 wmep->wmep_acm = ireq->i_val;
2027                 if ((wme->wme_flags & WME_F_AGGRMODE) == 0)
2028                         chanp->wmep_acm = ireq->i_val;
2029                 break;
2030         case IEEE80211_IOC_WME_ACKPOLICY:       /* WME: ACK policy (!bss only)*/
2031                 wmep->wmep_noackPolicy = chanp->wmep_noackPolicy =
2032                         (ireq->i_val) == 0;
2033                 break;
2034         }
2035         ieee80211_wme_updateparams(ic);
2036         return 0;
2037 }
2038
2039 static int
2040 cipher2cap(int cipher)
2041 {
2042         switch (cipher) {
2043         case IEEE80211_CIPHER_WEP:      return IEEE80211_C_WEP;
2044         case IEEE80211_CIPHER_AES_OCB:  return IEEE80211_C_AES;
2045         case IEEE80211_CIPHER_AES_CCM:  return IEEE80211_C_AES_CCM;
2046         case IEEE80211_CIPHER_CKIP:     return IEEE80211_C_CKIP;
2047         case IEEE80211_CIPHER_TKIP:     return IEEE80211_C_TKIP;
2048         }
2049         return 0;
2050 }
2051
2052 static int
2053 ieee80211_ioctl_set80211(struct ieee80211com *ic, u_long cmd, struct ieee80211req *ireq)
2054 {
2055         static const uint8_t zerobssid[IEEE80211_ADDR_LEN];
2056         struct ieee80211_rsnparms *rsn = &ic->ic_bss->ni_rsn;
2057         int error;
2058         const struct ieee80211_authenticator *auth;
2059         uint8_t tmpkey[IEEE80211_KEYBUF_SIZE];
2060         char tmpssid[IEEE80211_NWID_LEN];
2061         uint8_t tmpbssid[IEEE80211_ADDR_LEN];
2062         struct ieee80211_key *k;
2063         int j, caps;
2064         u_int kid;
2065
2066         error = 0;
2067         switch (ireq->i_type) {
2068         case IEEE80211_IOC_SSID:
2069                 if (ireq->i_val != 0 ||
2070                     ireq->i_len > IEEE80211_NWID_LEN)
2071                         return EINVAL;
2072                 error = copyin(ireq->i_data, tmpssid, ireq->i_len);
2073                 if (error)
2074                         break;
2075                 memset(ic->ic_des_essid, 0, IEEE80211_NWID_LEN);
2076                 ic->ic_des_esslen = ireq->i_len;
2077                 memcpy(ic->ic_des_essid, tmpssid, ireq->i_len);
2078                 error = ENETRESET;
2079                 break;
2080         case IEEE80211_IOC_WEP:
2081                 switch (ireq->i_val) {
2082                 case IEEE80211_WEP_OFF:
2083                         ic->ic_flags &= ~IEEE80211_F_PRIVACY;
2084                         ic->ic_flags &= ~IEEE80211_F_DROPUNENC;
2085                         break;
2086                 case IEEE80211_WEP_ON:
2087                         ic->ic_flags |= IEEE80211_F_PRIVACY;
2088                         ic->ic_flags |= IEEE80211_F_DROPUNENC;
2089                         break;
2090                 case IEEE80211_WEP_MIXED:
2091                         ic->ic_flags |= IEEE80211_F_PRIVACY;
2092                         ic->ic_flags &= ~IEEE80211_F_DROPUNENC;
2093                         break;
2094                 }
2095                 error = ENETRESET;
2096                 break;
2097         case IEEE80211_IOC_WEPKEY:
2098                 kid = (u_int)ireq->i_val;
2099                 if (kid >= IEEE80211_WEP_NKID)
2100                         return EINVAL;
2101                 k = &ic->ic_nw_keys[kid];
2102                 if (ireq->i_len == 0) {
2103                         /* zero-len =>'s delete any existing key */
2104                         ieee80211_crypto_delkey(ic, k);
2105                         break;
2106                 }
2107                 if (ireq->i_len > sizeof(tmpkey))
2108                         return EINVAL;
2109                 memset(tmpkey, 0, sizeof(tmpkey));
2110                 error = copyin(ireq->i_data, tmpkey, ireq->i_len);
2111                 if (error)
2112                         break;
2113                 ieee80211_key_update_begin(ic);
2114                 k->wk_keyix = kid;      /* NB: force fixed key id */
2115                 if (ieee80211_crypto_newkey(ic, IEEE80211_CIPHER_WEP,
2116                     IEEE80211_KEY_XMIT | IEEE80211_KEY_RECV, k)) {
2117                         k->wk_keylen = ireq->i_len;
2118                         memcpy(k->wk_key, tmpkey, sizeof(tmpkey));
2119                         if  (!ieee80211_crypto_setkey(ic, k, ic->ic_myaddr))
2120                                 error = EINVAL;
2121                 } else
2122                         error = EINVAL;
2123                 ieee80211_key_update_end(ic);
2124                 if (!error)                     /* NB: for compatibility */
2125                         error = ENETRESET;
2126                 break;
2127         case IEEE80211_IOC_WEPTXKEY:
2128                 kid = (u_int) ireq->i_val;
2129                 if (kid >= IEEE80211_WEP_NKID &&
2130                     (uint16_t) kid != IEEE80211_KEYIX_NONE)
2131                         return EINVAL;
2132                 ic->ic_def_txkey = kid;
2133                 error = ENETRESET;      /* push to hardware */
2134                 break;
2135         case IEEE80211_IOC_AUTHMODE:
2136                 switch (ireq->i_val) {
2137                 case IEEE80211_AUTH_WPA:
2138                 case IEEE80211_AUTH_8021X:      /* 802.1x */
2139                 case IEEE80211_AUTH_OPEN:       /* open */
2140                 case IEEE80211_AUTH_SHARED:     /* shared-key */
2141                 case IEEE80211_AUTH_AUTO:       /* auto */
2142                         auth = ieee80211_authenticator_get(ireq->i_val);
2143                         if (auth == NULL)
2144                                 return EINVAL;
2145                         break;
2146                 default:
2147                         return EINVAL;
2148                 }
2149                 switch (ireq->i_val) {
2150                 case IEEE80211_AUTH_WPA:        /* WPA w/ 802.1x */
2151                         ic->ic_flags |= IEEE80211_F_PRIVACY;
2152                         ireq->i_val = IEEE80211_AUTH_8021X;
2153                         break;
2154                 case IEEE80211_AUTH_OPEN:       /* open */
2155                         ic->ic_flags &= ~(IEEE80211_F_WPA|IEEE80211_F_PRIVACY);
2156                         break;
2157                 case IEEE80211_AUTH_SHARED:     /* shared-key */
2158                 case IEEE80211_AUTH_8021X:      /* 802.1x */
2159                         ic->ic_flags &= ~IEEE80211_F_WPA;
2160                         /* both require a key so mark the PRIVACY capability */
2161                         ic->ic_flags |= IEEE80211_F_PRIVACY;
2162                         break;
2163                 case IEEE80211_AUTH_AUTO:       /* auto */
2164                         ic->ic_flags &= ~IEEE80211_F_WPA;
2165                         /* XXX PRIVACY handling? */
2166                         /* XXX what's the right way to do this? */
2167                         break;
2168                 }
2169                 /* NB: authenticator attach/detach happens on state change */
2170                 ic->ic_bss->ni_authmode = ireq->i_val;
2171                 /* XXX mixed/mode/usage? */
2172                 ic->ic_auth = auth;
2173                 error = ENETRESET;
2174                 break;
2175         case IEEE80211_IOC_CHANNEL:
2176                 /* XXX 0xffff overflows 16-bit signed */
2177                 if (ireq->i_val == 0 ||
2178                     ireq->i_val == (int16_t) IEEE80211_CHAN_ANY)
2179                         ic->ic_des_chan = IEEE80211_CHAN_ANYC;
2180                 else if ((u_int) ireq->i_val > IEEE80211_CHAN_MAX ||
2181                     isclr(ic->ic_chan_active, ireq->i_val)) {
2182                         return EINVAL;
2183                 } else
2184                         ic->ic_ibss_chan = ic->ic_des_chan =
2185                                 &ic->ic_channels[ireq->i_val];
2186                 switch (ic->ic_state) {
2187                 case IEEE80211_S_INIT:
2188                 case IEEE80211_S_SCAN:
2189                         error = ENETRESET;
2190                         break;
2191                 default:
2192                         /*
2193                          * If the desired channel has changed (to something
2194                          * other than any) and we're not already scanning,
2195                          * then kick the state machine.
2196                          */
2197                         if (ic->ic_des_chan != IEEE80211_CHAN_ANYC &&
2198                             ic->ic_bss->ni_chan != ic->ic_des_chan &&
2199                             (ic->ic_flags & IEEE80211_F_SCAN) == 0)
2200                                 error = ENETRESET;
2201                         break;
2202                 }
2203                 if (error == ENETRESET &&
2204                         ic->ic_opmode == IEEE80211_M_MONITOR) {
2205                         if (IS_UP(ic)) {
2206                                 /*
2207                                  * Monitor mode can switch directly.
2208                                  */
2209                                 if (ic->ic_des_chan != IEEE80211_CHAN_ANYC)
2210                                         ic->ic_curchan = ic->ic_des_chan;
2211                                 error = ic->ic_reset(ic->ic_ifp);
2212                         } else
2213                                 error = 0;
2214                 }
2215                 break;
2216         case IEEE80211_IOC_POWERSAVE:
2217                 switch (ireq->i_val) {
2218                 case IEEE80211_POWERSAVE_OFF:
2219                         if (ic->ic_flags & IEEE80211_F_PMGTON) {
2220                                 ic->ic_flags &= ~IEEE80211_F_PMGTON;
2221                                 error = ENETRESET;
2222                         }
2223                         break;
2224                 case IEEE80211_POWERSAVE_ON:
2225                         if ((ic->ic_caps & IEEE80211_C_PMGT) == 0)
2226                                 error = EINVAL;
2227                         else if ((ic->ic_flags & IEEE80211_F_PMGTON) == 0) {
2228                                 ic->ic_flags |= IEEE80211_F_PMGTON;
2229                                 error = ENETRESET;
2230                         }
2231                         break;
2232                 default:
2233                         error = EINVAL;
2234                         break;
2235                 }
2236                 if (error == ENETRESET) {
2237                         /*
2238                          * Switching in+out of power save mode
2239                          * should not require a state change.
2240                          */
2241                         error = IS_UP(ic) ? ic->ic_reset(ic->ic_ifp) : 0;
2242                 }
2243                 break;
2244         case IEEE80211_IOC_POWERSAVESLEEP:
2245                 if (ireq->i_val < 0)
2246                         return EINVAL;
2247                 ic->ic_lintval = ireq->i_val;
2248                 error = IS_UP(ic) ? ic->ic_reset(ic->ic_ifp) : 0;
2249                 break;
2250         case IEEE80211_IOC_RTSTHRESHOLD:
2251                 if (!(IEEE80211_RTS_MIN <= ireq->i_val &&
2252                       ireq->i_val <= IEEE80211_RTS_MAX))
2253                         return EINVAL;
2254                 ic->ic_rtsthreshold = ireq->i_val;
2255                 error = IS_UP(ic) ? ic->ic_reset(ic->ic_ifp) : 0;
2256                 break;
2257         case IEEE80211_IOC_PROTMODE:
2258                 if (ireq->i_val > IEEE80211_PROT_RTSCTS)
2259                         return EINVAL;
2260                 ic->ic_protmode = ireq->i_val;
2261                 /* NB: if not operating in 11g this can wait */
2262                 if (ic->ic_curmode == IEEE80211_MODE_11G)
2263                         error = IS_UP(ic) ? ic->ic_reset(ic->ic_ifp) : 0;
2264                 break;
2265         case IEEE80211_IOC_TXPOWER:
2266                 if ((ic->ic_caps & IEEE80211_C_TXPMGT) == 0)
2267                         return EINVAL;
2268                 if (!(IEEE80211_TXPOWER_MIN < ireq->i_val &&
2269                       ireq->i_val < IEEE80211_TXPOWER_MAX))
2270                         return EINVAL;
2271                 ic->ic_txpowlimit = ireq->i_val;
2272                 error = IS_UP(ic) ? ic->ic_reset(ic->ic_ifp) : 0;
2273                 break;
2274         case IEEE80211_IOC_ROAMING:
2275                 if (!(IEEE80211_ROAMING_DEVICE <= ireq->i_val &&
2276                     ireq->i_val <= IEEE80211_ROAMING_MANUAL))
2277                         return EINVAL;
2278                 ic->ic_roaming = ireq->i_val;
2279                 /* XXXX reset? */
2280                 break;
2281         case IEEE80211_IOC_PRIVACY:
2282                 if (ireq->i_val) {
2283                         /* XXX check for key state? */
2284                         ic->ic_flags |= IEEE80211_F_PRIVACY;
2285                 } else
2286                         ic->ic_flags &= ~IEEE80211_F_PRIVACY;
2287                 break;
2288         case IEEE80211_IOC_DROPUNENCRYPTED:
2289                 if (ireq->i_val)
2290                         ic->ic_flags |= IEEE80211_F_DROPUNENC;
2291                 else
2292                         ic->ic_flags &= ~IEEE80211_F_DROPUNENC;
2293                 break;
2294         case IEEE80211_IOC_WPAKEY:
2295                 error = ieee80211_ioctl_setkey(ic, ireq);
2296                 break;
2297         case IEEE80211_IOC_DELKEY:
2298                 error = ieee80211_ioctl_delkey(ic, ireq);
2299                 break;
2300         case IEEE80211_IOC_MLME:
2301                 error = ieee80211_ioctl_setmlme(ic, ireq);
2302                 break;
2303         case IEEE80211_IOC_OPTIE:
2304                 error = ieee80211_ioctl_setoptie(ic, ireq);
2305                 break;
2306         case IEEE80211_IOC_COUNTERMEASURES:
2307                 if (ireq->i_val) {
2308                         if ((ic->ic_flags & IEEE80211_F_WPA) == 0)
2309                                 return EINVAL;
2310                         ic->ic_flags |= IEEE80211_F_COUNTERM;
2311                 } else
2312                         ic->ic_flags &= ~IEEE80211_F_COUNTERM;
2313                 break;
2314         case IEEE80211_IOC_WPA:
2315                 if (ireq->i_val > 3)
2316                         return EINVAL;
2317                 /* XXX verify ciphers available */
2318                 ic->ic_flags &= ~IEEE80211_F_WPA;
2319                 switch (ireq->i_val) {
2320                 case 1:
2321                         ic->ic_flags |= IEEE80211_F_WPA1;
2322                         break;
2323                 case 2:
2324                         ic->ic_flags |= IEEE80211_F_WPA2;
2325                         break;
2326                 case 3:
2327                         ic->ic_flags |= IEEE80211_F_WPA1 | IEEE80211_F_WPA2;
2328                         break;
2329                 }
2330                 error = ENETRESET;              /* XXX? */
2331                 break;
2332         case IEEE80211_IOC_WME:
2333                 if (ireq->i_val) {
2334                         if ((ic->ic_caps & IEEE80211_C_WME) == 0)
2335                                 return EINVAL;
2336                         ic->ic_flags |= IEEE80211_F_WME;
2337                 } else
2338                         ic->ic_flags &= ~IEEE80211_F_WME;
2339                 error = ENETRESET;              /* XXX maybe not for station? */
2340                 break;
2341         case IEEE80211_IOC_HIDESSID:
2342                 if (ireq->i_val)
2343                         ic->ic_flags |= IEEE80211_F_HIDESSID;
2344                 else
2345                         ic->ic_flags &= ~IEEE80211_F_HIDESSID;
2346                 error = ENETRESET;
2347                 break;
2348         case IEEE80211_IOC_APBRIDGE:
2349                 if (ireq->i_val == 0)
2350                         ic->ic_flags |= IEEE80211_F_NOBRIDGE;
2351                 else
2352                         ic->ic_flags &= ~IEEE80211_F_NOBRIDGE;
2353                 break;
2354         case IEEE80211_IOC_MCASTCIPHER:
2355                 if ((ic->ic_caps & cipher2cap(ireq->i_val)) == 0 &&
2356                     !ieee80211_crypto_available(ireq->i_val))
2357                         return EINVAL;
2358                 rsn->rsn_mcastcipher = ireq->i_val;
2359                 error = (ic->ic_flags & IEEE80211_F_WPA) ? ENETRESET : 0;
2360                 break;
2361         case IEEE80211_IOC_MCASTKEYLEN:
2362                 if (!(0 < ireq->i_val && ireq->i_val < IEEE80211_KEYBUF_SIZE))
2363                         return EINVAL;
2364                 /* XXX no way to verify driver capability */
2365                 rsn->rsn_mcastkeylen = ireq->i_val;
2366                 error = (ic->ic_flags & IEEE80211_F_WPA) ? ENETRESET : 0;
2367                 break;
2368         case IEEE80211_IOC_UCASTCIPHERS:
2369                 /*
2370                  * Convert user-specified cipher set to the set
2371                  * we can support (via hardware or software).
2372                  * NB: this logic intentionally ignores unknown and
2373                  * unsupported ciphers so folks can specify 0xff or
2374                  * similar and get all available ciphers.
2375                  */
2376                 caps = 0;
2377                 for (j = 1; j < 32; j++)        /* NB: skip WEP */
2378                         if ((ireq->i_val & (1<<j)) &&
2379                             ((ic->ic_caps & cipher2cap(j)) ||
2380                              ieee80211_crypto_available(j)))
2381                                 caps |= 1<<j;
2382                 if (caps == 0)                  /* nothing available */
2383                         return EINVAL;
2384                 /* XXX verify ciphers ok for unicast use? */
2385                 /* XXX disallow if running as it'll have no effect */
2386                 rsn->rsn_ucastcipherset = caps;
2387                 error = (ic->ic_flags & IEEE80211_F_WPA) ? ENETRESET : 0;
2388                 break;
2389         case IEEE80211_IOC_UCASTCIPHER:
2390                 if ((rsn->rsn_ucastcipherset & cipher2cap(ireq->i_val)) == 0)
2391                         return EINVAL;
2392                 rsn->rsn_ucastcipher = ireq->i_val;
2393                 break;
2394         case IEEE80211_IOC_UCASTKEYLEN:
2395                 if (!(0 < ireq->i_val && ireq->i_val < IEEE80211_KEYBUF_SIZE))
2396                         return EINVAL;
2397                 /* XXX no way to verify driver capability */
2398                 rsn->rsn_ucastkeylen = ireq->i_val;
2399                 break;
2400         case IEEE80211_IOC_DRIVER_CAPS:
2401                 /* NB: for testing */
2402                 ic->ic_caps = (((uint16_t)ireq->i_val) << 16) |
2403                                ((uint16_t)ireq->i_len);
2404                 break;
2405         case IEEE80211_IOC_KEYMGTALGS:
2406                 /* XXX check */
2407                 rsn->rsn_keymgmtset = ireq->i_val;
2408                 error = (ic->ic_flags & IEEE80211_F_WPA) ? ENETRESET : 0;
2409                 break;
2410         case IEEE80211_IOC_RSNCAPS:
2411                 /* XXX check */
2412                 rsn->rsn_caps = ireq->i_val;
2413                 error = (ic->ic_flags & IEEE80211_F_WPA) ? ENETRESET : 0;
2414                 break;
2415         case IEEE80211_IOC_BSSID:
2416                 if (ireq->i_len != sizeof(tmpbssid))
2417                         return EINVAL;
2418                 error = copyin(ireq->i_data, tmpbssid, ireq->i_len);
2419                 if (error)
2420                         break;
2421                 IEEE80211_ADDR_COPY(ic->ic_des_bssid, tmpbssid);
2422                 if (IEEE80211_ADDR_EQ(ic->ic_des_bssid, zerobssid))
2423                         ic->ic_flags &= ~IEEE80211_F_DESBSSID;
2424                 else
2425                         ic->ic_flags |= IEEE80211_F_DESBSSID;
2426                 error = ENETRESET;
2427                 break;
2428         case IEEE80211_IOC_CHANLIST:
2429                 error = ieee80211_ioctl_setchanlist(ic, ireq);
2430                 break;
2431         case IEEE80211_IOC_SCAN_REQ:
2432                 if (ic->ic_opmode == IEEE80211_M_HOSTAP)        /* XXX ignore */
2433                         break;
2434                 error = ieee80211_setupscan(ic, ic->ic_chan_avail);
2435                 if (error == 0)         /* XXX background scan */
2436                         error = ieee80211_new_state(ic, IEEE80211_S_SCAN, -1);
2437                 break;
2438         case IEEE80211_IOC_ADDMAC:
2439         case IEEE80211_IOC_DELMAC:
2440                 error = ieee80211_ioctl_macmac(ic, ireq);
2441                 break;
2442         case IEEE80211_IOC_MACCMD:
2443                 error = ieee80211_ioctl_setmaccmd(ic, ireq);
2444                 break;
2445         case IEEE80211_IOC_STA_STATS:
2446                 error = ieee80211_ioctl_setstastats(ic, ireq);
2447                 break;
2448         case IEEE80211_IOC_STA_TXPOW:
2449                 error = ieee80211_ioctl_setstatxpow(ic, ireq);
2450                 break;
2451         case IEEE80211_IOC_WME_CWMIN:           /* WME: CWmin */
2452         case IEEE80211_IOC_WME_CWMAX:           /* WME: CWmax */
2453         case IEEE80211_IOC_WME_AIFS:            /* WME: AIFS */
2454         case IEEE80211_IOC_WME_TXOPLIMIT:       /* WME: txops limit */
2455         case IEEE80211_IOC_WME_ACM:             /* WME: ACM (bss only) */
2456         case IEEE80211_IOC_WME_ACKPOLICY:       /* WME: ACK policy (bss only) */
2457                 error = ieee80211_ioctl_setwmeparam(ic, ireq);
2458                 break;
2459         case IEEE80211_IOC_DTIM_PERIOD:
2460                 if (ic->ic_opmode != IEEE80211_M_HOSTAP &&
2461                     ic->ic_opmode != IEEE80211_M_IBSS)
2462                         return EINVAL;
2463                 if (IEEE80211_DTIM_MIN <= ireq->i_val &&
2464                     ireq->i_val <= IEEE80211_DTIM_MAX) {
2465                         ic->ic_dtim_period = ireq->i_val;
2466                         error = ENETRESET;              /* requires restart */
2467                 } else
2468                         error = EINVAL;
2469                 break;
2470         case IEEE80211_IOC_BEACON_INTERVAL:
2471                 if (ic->ic_opmode != IEEE80211_M_HOSTAP &&
2472                     ic->ic_opmode != IEEE80211_M_IBSS)
2473                         return EINVAL;
2474                 if (IEEE80211_BINTVAL_MIN <= ireq->i_val &&
2475                     ireq->i_val <= IEEE80211_BINTVAL_MAX) {
2476                         ic->ic_bintval = ireq->i_val;
2477                         error = ENETRESET;              /* requires restart */
2478                 } else
2479                         error = EINVAL;
2480                 break;
2481         case IEEE80211_IOC_PUREG:
2482                 if (ireq->i_val)
2483                         ic->ic_flags |= IEEE80211_F_PUREG;
2484                 else
2485                         ic->ic_flags &= ~IEEE80211_F_PUREG;
2486
2487                 /*
2488                  * NB: reset only if we're operating on an 11g channel
2489                  *     and we act as AP or we are a member of an IBSS.
2490                  */
2491                 if ((ic->ic_curmode == IEEE80211_MODE_11G ||
2492                      ic->ic_curmode == IEEE80211_MODE_TURBO_G) &&
2493                     (ic->ic_opmode == IEEE80211_M_HOSTAP ||
2494                      ic->ic_opmode == IEEE80211_M_IBSS))
2495                         error = ENETRESET;
2496                 break;
2497         case IEEE80211_IOC_MCAST_RATE:
2498                 ic->ic_mcast_rate = ireq->i_val & IEEE80211_RATE_VAL;
2499                 break;
2500         case IEEE80211_IOC_FRAGTHRESHOLD:
2501                 if ((ic->ic_caps & IEEE80211_C_TXFRAG) == 0 &&
2502                     ireq->i_val != IEEE80211_FRAG_MAX)
2503                         return EINVAL;
2504                 if (!(IEEE80211_FRAG_MIN <= ireq->i_val &&
2505                       ireq->i_val <= IEEE80211_FRAG_MAX))
2506                         return EINVAL;
2507                 ic->ic_fragthreshold = ireq->i_val;
2508                 error = IS_UP(ic) ? ic->ic_reset(ic->ic_ifp) : 0;
2509                 break;
2510         case IEEE80211_IOC_BURST:
2511                 if (ireq->i_val) {
2512                         if ((ic->ic_caps & IEEE80211_C_BURST) == 0)
2513                                 return EINVAL;
2514                         ic->ic_flags |= IEEE80211_F_BURST;
2515                 } else
2516                         ic->ic_flags &= ~IEEE80211_F_BURST;
2517                 error = ENETRESET;              /* XXX maybe not for station? */
2518                 break;
2519         case IEEE80211_IOC_RATECTL:
2520                 if (ireq->i_val < 0 || ireq->i_val >= IEEE80211_RATECTL_MAX ||
2521                     ireq->i_val == IEEE80211_RATECTL_NONE) {
2522                         error = EINVAL;
2523                         break;
2524                 }
2525
2526                 error = ieee80211_ratectl_change(ic, ireq->i_val);
2527                 break;
2528         case IEEE80211_IOC_BMISSTHRESHOLD:
2529                 if (!(IEEE80211_HWBMISS_MIN <= ireq->i_val &&
2530                     ireq->i_val <= IEEE80211_HWBMISS_MAX))
2531                         return EINVAL;
2532                 ic->ic_bmissthreshold = ireq->i_val;
2533                 error = IS_UP(ic) ? ic->ic_reset(ic->ic_ifp) : 0;
2534                 break;
2535         default:
2536                 error = EINVAL;
2537                 break;
2538         }
2539         if (error == ENETRESET && !IS_UP_AUTO(ic))
2540                 error = 0;
2541         return error;
2542 }
2543
2544 int
2545 ieee80211_ioctl(struct ieee80211com *ic, u_long cmd, caddr_t data,
2546                 struct ucred *cr)
2547 {
2548         struct ifnet *ifp = ic->ic_ifp;
2549         int error = 0;
2550         struct ifreq *ifr;
2551
2552         switch (cmd) {
2553         case SIOCSIFMEDIA:
2554         case SIOCGIFMEDIA:
2555                 error = ifmedia_ioctl(ifp, (struct ifreq *) data,
2556                                 &ic->ic_media, cmd);
2557                 break;
2558         case SIOCG80211:
2559                 error = ieee80211_ioctl_get80211(ic, cmd,
2560                                 (struct ieee80211req *) data, cr);
2561                 break;
2562         case SIOCS80211:
2563                 error = suser_cred(cr, NULL_CRED_OKAY);
2564                 if (error == 0)
2565                         error = ieee80211_ioctl_set80211(ic, cmd,
2566                                         (struct ieee80211req *) data);
2567                 break;
2568         case SIOCGIFGENERIC:
2569                 error = ieee80211_cfgget(ic, cmd, data, cr);
2570                 break;
2571         case SIOCSIFGENERIC:
2572                 error = suser_cred(cr, NULL_CRED_OKAY);
2573                 if (error)
2574                         break;
2575                 error = ieee80211_cfgset(ic, cmd, data);
2576                 break;
2577         case SIOCG80211STATS:
2578                 ifr = (struct ifreq *)data;
2579                 copyout(&ic->ic_stats, ifr->ifr_data, sizeof (ic->ic_stats));
2580                 break;
2581         case SIOCSIFMTU:
2582                 ifr = (struct ifreq *)data;
2583                 if (!(IEEE80211_MTU_MIN <= ifr->ifr_mtu &&
2584                     ifr->ifr_mtu <= IEEE80211_MTU_MAX))
2585                         error = EINVAL;
2586                 else
2587                         ifp->if_mtu = ifr->ifr_mtu;
2588                 break;
2589         default:
2590                 error = ether_ioctl(ifp, cmd, data);
2591                 break;
2592         }
2593         return error;
2594 }