sys/net80211/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
  33 #include <sys/cdefs.h>
  34 __FBSDID("$FreeBSD$");
  35
  36 /*
  37  * IEEE 802.11 ioctl support (FreeBSD-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/socket.h>
  47 #include <sys/sockio.h>
  48 #include <sys/systm.h>
  49
  50 #include <net/if.h>
  51 #include <net/if_dl.h>
  52 #include <net/if_media.h>
  53 #include <net/ethernet.h>
  54
  55 #ifdef INET
  56 #include <netinet/in.h>
  57 #include <netinet/if_ether.h>
  58 #endif
  59
  60 #ifdef IPX
  61 #include <netipx/ipx.h>
  62 #include <netipx/ipx_if.h>
  63 #endif
  64
  65 #include <net80211/ieee80211_var.h>
  66 #include <net80211/ieee80211_ioctl.h>
  67
  68 #include <dev/wi/if_wavelan_ieee.h>
  69
  70 #define IS_UP(_ic) \
  71         (((_ic)->ic_ifp->if_flags & IFF_UP) &&                  \
  72             ((_ic)->ic_ifp->if_drv_flags & IFF_DRV_RUNNING))
  73 #define IS_UP_AUTO(_ic) \
  74         (IS_UP(_ic) && (_ic)->ic_roaming == IEEE80211_ROAMING_AUTO)
  75
  76 /*
  77  * XXX
  78  * Wireless LAN specific configuration interface, which is compatible
  79  * with wicontrol(8).
  80  */
  81
  82 struct wi_read_ap_args {
  83         int     i;              /* result count */
  84         struct wi_apinfo *ap;   /* current entry in result buffer */
  85         caddr_t max;            /* result buffer bound */
  86 };
  87
  88 static void
  89 wi_read_ap_result(void *arg, struct ieee80211_node *ni)
  90 {
  91         struct ieee80211com *ic = ni->ni_ic;
  92         struct wi_read_ap_args *sa = arg;
  93         struct wi_apinfo *ap = sa->ap;
  94         struct ieee80211_rateset *rs;
  95         int j;
  96
  97         if ((caddr_t)(ap + 1) > sa->max)
  98                 return;
  99         memset(ap, 0, sizeof(struct wi_apinfo));
 100         if (ic->ic_opmode == IEEE80211_M_HOSTAP) {
 101                 IEEE80211_ADDR_COPY(ap->bssid, ni->ni_macaddr);
 102                 ap->namelen = ic->ic_des_esslen;
 103                 if (ic->ic_des_esslen)
 104                         memcpy(ap->name, ic->ic_des_essid,
 105                             ic->ic_des_esslen);
 106         } else {
 107                 IEEE80211_ADDR_COPY(ap->bssid, ni->ni_bssid);
 108                 ap->namelen = ni->ni_esslen;
 109                 if (ni->ni_esslen)
 110                         memcpy(ap->name, ni->ni_essid,
 111                             ni->ni_esslen);
 112         }
 113         ap->channel = ieee80211_chan2ieee(ic, ni->ni_chan);
 114         ap->signal = ic->ic_node_getrssi(ni);
 115         ap->capinfo = ni->ni_capinfo;
 116         ap->interval = ni->ni_intval;
 117         rs = &ni->ni_rates;
 118         for (j = 0; j < rs->rs_nrates; j++) {
 119                 if (rs->rs_rates[j] & IEEE80211_RATE_BASIC) {
 120                         ap->rate = (rs->rs_rates[j] &
 121                             IEEE80211_RATE_VAL) * 5; /* XXX */
 122                 }
 123         }
 124         sa->i++;
 125         sa->ap++;
 126 }
 127
 128 struct wi_read_prism2_args {
 129         int     i;              /* result count */
 130         struct wi_scan_res *res;/* current entry in result buffer */
 131         caddr_t max;            /* result buffer bound */
 132 };
 133
 134 static void
 135 wi_read_prism2_result(void *arg, struct ieee80211_node *ni)
 136 {
 137         struct ieee80211com *ic = ni->ni_ic;
 138         struct wi_read_prism2_args *sa = arg;
 139         struct wi_scan_res *res = sa->res;
 140
 141         if ((caddr_t)(res + 1) > sa->max)
 142                 return;
 143         res->wi_chan = ieee80211_chan2ieee(ic, ni->ni_chan);
 144         res->wi_noise = 0;
 145         res->wi_signal = ic->ic_node_getrssi(ni);
 146         IEEE80211_ADDR_COPY(res->wi_bssid, ni->ni_bssid);
 147         res->wi_interval = ni->ni_intval;
 148         res->wi_capinfo = ni->ni_capinfo;
 149         res->wi_ssid_len = ni->ni_esslen;
 150         memcpy(res->wi_ssid, ni->ni_essid, IEEE80211_NWID_LEN);
 151         /* NB: assumes wi_srates holds <= ni->ni_rates */
 152         memcpy(res->wi_srates, ni->ni_rates.rs_rates,
 153                 sizeof(res->wi_srates));
 154         if (ni->ni_rates.rs_nrates < 10)
 155                 res->wi_srates[ni->ni_rates.rs_nrates] = 0;
 156         res->wi_rate = ni->ni_rates.rs_rates[ni->ni_txrate];
 157         res->wi_rsvd = 0;
 158
 159         sa->i++;
 160         sa->res++;
 161 }
 162
 163 struct wi_read_sigcache_args {
 164         int     i;              /* result count */
 165         struct wi_sigcache *wsc;/* current entry in result buffer */
 166         caddr_t max;            /* result buffer bound */
 167 };
 168
 169 static void
 170 wi_read_sigcache(void *arg, struct ieee80211_node *ni)
 171 {
 172         struct ieee80211com *ic = ni->ni_ic;
 173         struct wi_read_sigcache_args *sa = arg;
 174         struct wi_sigcache *wsc = sa->wsc;
 175
 176         if ((caddr_t)(wsc + 1) > sa->max)
 177                 return;
 178         memset(wsc, 0, sizeof(struct wi_sigcache));
 179         IEEE80211_ADDR_COPY(wsc->macsrc, ni->ni_macaddr);
 180         wsc->signal = ic->ic_node_getrssi(ni);
 181
 182         sa->wsc++;
 183         sa->i++;
 184 }
 185
 186 int
 187 ieee80211_cfgget(struct ieee80211com *ic, u_long cmd, caddr_t data)
 188 {
 189         struct ifnet *ifp = ic->ic_ifp;
 190         int i, j, error;
 191         struct ifreq *ifr = (struct ifreq *)data;
 192         struct wi_req wreq;
 193         struct wi_ltv_keys *keys;
 194
 195         error = copyin(ifr->ifr_data, &wreq, sizeof(wreq));
 196         if (error)
 197                 return error;
 198         wreq.wi_len = 0;
 199         switch (wreq.wi_type) {
 200         case WI_RID_SERIALNO:
 201                 /* nothing appropriate */
 202                 break;
 203         case WI_RID_NODENAME:
 204                 strcpy((char *)&wreq.wi_val[1], hostname);
 205                 wreq.wi_val[0] = htole16(strlen(hostname));
 206                 wreq.wi_len = (1 + strlen(hostname) + 1) / 2;
 207                 break;
 208         case WI_RID_CURRENT_SSID:
 209                 if (ic->ic_state != IEEE80211_S_RUN) {
 210                         wreq.wi_val[0] = 0;
 211                         wreq.wi_len = 1;
 212                         break;
 213                 }
 214                 wreq.wi_val[0] = htole16(ic->ic_bss->ni_esslen);
 215                 memcpy(&wreq.wi_val[1], ic->ic_bss->ni_essid,
 216                     ic->ic_bss->ni_esslen);
 217                 wreq.wi_len = (1 + ic->ic_bss->ni_esslen + 1) / 2;
 218                 break;
 219         case WI_RID_OWN_SSID:
 220         case WI_RID_DESIRED_SSID:
 221                 wreq.wi_val[0] = htole16(ic->ic_des_esslen);
 222                 memcpy(&wreq.wi_val[1], ic->ic_des_essid, ic->ic_des_esslen);
 223                 wreq.wi_len = (1 + ic->ic_des_esslen + 1) / 2;
 224                 break;
 225         case WI_RID_CURRENT_BSSID:
 226                 if (ic->ic_state == IEEE80211_S_RUN)
 227                         IEEE80211_ADDR_COPY(wreq.wi_val, ic->ic_bss->ni_bssid);
 228                 else
 229                         memset(wreq.wi_val, 0, IEEE80211_ADDR_LEN);
 230                 wreq.wi_len = IEEE80211_ADDR_LEN / 2;
 231                 break;
 232         case WI_RID_CHANNEL_LIST:
 233                 memset(wreq.wi_val, 0, sizeof(wreq.wi_val));
 234                 /*
 235                  * Since channel 0 is not available for DS, channel 1
 236                  * is assigned to LSB on WaveLAN.
 237                  */
 238                 if (ic->ic_phytype == IEEE80211_T_DS)
 239                         i = 1;
 240                 else
 241                         i = 0;
 242                 for (j = 0; i <= IEEE80211_CHAN_MAX; i++, j++)
 243                         if (isset(ic->ic_chan_active, i)) {
 244                                 setbit((u_int8_t *)wreq.wi_val, j);
 245                                 wreq.wi_len = j / 16 + 1;
 246                         }
 247                 break;
 248         case WI_RID_OWN_CHNL:
 249                 wreq.wi_val[0] = htole16(
 250                         ieee80211_chan2ieee(ic, ic->ic_ibss_chan));
 251                 wreq.wi_len = 1;
 252                 break;
 253         case WI_RID_CURRENT_CHAN:
 254                 wreq.wi_val[0] = htole16(
 255                         ieee80211_chan2ieee(ic, ic->ic_curchan));
 256                 wreq.wi_len = 1;
 257                 break;
 258         case WI_RID_COMMS_QUALITY:
 259                 wreq.wi_val[0] = 0;                             /* quality */
 260                 wreq.wi_val[1] = htole16(ic->ic_node_getrssi(ic->ic_bss));
 261                 wreq.wi_val[2] = 0;                             /* noise */
 262                 wreq.wi_len = 3;
 263                 break;
 264         case WI_RID_PROMISC:
 265                 wreq.wi_val[0] = htole16((ifp->if_flags & IFF_PROMISC) ? 1 : 0);
 266                 wreq.wi_len = 1;
 267                 break;
 268         case WI_RID_PORTTYPE:
 269                 wreq.wi_val[0] = htole16(ic->ic_opmode);
 270                 wreq.wi_len = 1;
 271                 break;
 272         case WI_RID_MAC_NODE:
 273                 IEEE80211_ADDR_COPY(wreq.wi_val, ic->ic_myaddr);
 274                 wreq.wi_len = IEEE80211_ADDR_LEN / 2;
 275                 break;
 276         case WI_RID_TX_RATE:
 277                 if (ic->ic_fixed_rate == IEEE80211_FIXED_RATE_NONE)
 278                         wreq.wi_val[0] = 0;     /* auto */
 279                 else
 280                         wreq.wi_val[0] = htole16(
 281                             (ic->ic_sup_rates[ic->ic_curmode].rs_rates[ic->ic_fixed_rate] &
 282                             IEEE80211_RATE_VAL) / 2);
 283                 wreq.wi_len = 1;
 284                 break;
 285         case WI_RID_CUR_TX_RATE:
 286                 wreq.wi_val[0] = htole16(
 287                     (ic->ic_bss->ni_rates.rs_rates[ic->ic_bss->ni_txrate] &
 288                     IEEE80211_RATE_VAL) / 2);
 289                 wreq.wi_len = 1;
 290                 break;
 291         case WI_RID_RTS_THRESH:
 292                 wreq.wi_val[0] = htole16(ic->ic_rtsthreshold);
 293                 wreq.wi_len = 1;
 294                 break;
 295         case WI_RID_CREATE_IBSS:
 296                 wreq.wi_val[0] =
 297                     htole16((ic->ic_flags & IEEE80211_F_IBSSON) ? 1 : 0);
 298                 wreq.wi_len = 1;
 299                 break;
 300         case WI_RID_MICROWAVE_OVEN:
 301                 wreq.wi_val[0] = 0;     /* no ... not supported */
 302                 wreq.wi_len = 1;
 303                 break;
 304         case WI_RID_ROAMING_MODE:
 305                 wreq.wi_val[0] = htole16(ic->ic_roaming);       /* XXX map */
 306                 wreq.wi_len = 1;
 307                 break;
 308         case WI_RID_SYSTEM_SCALE:
 309                 wreq.wi_val[0] = htole16(1);    /* low density ... not supp */
 310                 wreq.wi_len = 1;
 311                 break;
 312         case WI_RID_PM_ENABLED:
 313                 wreq.wi_val[0] =
 314                     htole16((ic->ic_flags & IEEE80211_F_PMGTON) ? 1 : 0);
 315                 wreq.wi_len = 1;
 316                 break;
 317         case WI_RID_MAX_SLEEP:
 318                 wreq.wi_val[0] = htole16(ic->ic_lintval);
 319                 wreq.wi_len = 1;
 320                 break;
 321         case WI_RID_CUR_BEACON_INT:
 322                 wreq.wi_val[0] = htole16(ic->ic_bss->ni_intval);
 323                 wreq.wi_len = 1;
 324                 break;
 325         case WI_RID_WEP_AVAIL:
 326                 wreq.wi_val[0] = htole16(1);    /* always available */
 327                 wreq.wi_len = 1;
 328                 break;
 329         case WI_RID_CNFAUTHMODE:
 330                 wreq.wi_val[0] = htole16(1);    /* TODO: open system only */
 331                 wreq.wi_len = 1;
 332                 break;
 333         case WI_RID_ENCRYPTION:
 334                 wreq.wi_val[0] =
 335                     htole16((ic->ic_flags & IEEE80211_F_PRIVACY) ? 1 : 0);
 336                 wreq.wi_len = 1;
 337                 break;
 338         case WI_RID_TX_CRYPT_KEY:
 339                 wreq.wi_val[0] = htole16(ic->ic_def_txkey);
 340                 wreq.wi_len = 1;
 341                 break;
 342         case WI_RID_DEFLT_CRYPT_KEYS:
 343                 keys = (struct wi_ltv_keys *)&wreq;
 344                 /* do not show keys to non-root user */
 345                 error = suser(curthread);
 346                 if (error) {
 347                         memset(keys, 0, sizeof(*keys));
 348                         error = 0;
 349                         break;
 350                 }
 351                 for (i = 0; i < IEEE80211_WEP_NKID; i++) {
 352                         keys->wi_keys[i].wi_keylen =
 353                             htole16(ic->ic_nw_keys[i].wk_keylen);
 354                         memcpy(keys->wi_keys[i].wi_keydat,
 355                             ic->ic_nw_keys[i].wk_key,
 356                             ic->ic_nw_keys[i].wk_keylen);
 357                 }
 358                 wreq.wi_len = sizeof(*keys) / 2;
 359                 break;
 360         case WI_RID_MAX_DATALEN:
 361                 wreq.wi_val[0] = htole16(ic->ic_fragthreshold);
 362                 wreq.wi_len = 1;
 363                 break;
 364         case WI_RID_IFACE_STATS:
 365                 /* XXX: should be implemented in lower drivers */
 366                 break;
 367         case WI_RID_READ_APS:
 368                 /*
 369                  * Don't return results until active scan completes.
 370                  */
 371                 if ((ic->ic_flags & (IEEE80211_F_SCAN|IEEE80211_F_ASCAN)) == 0) {
 372                         struct wi_read_ap_args args;
 373
 374                         args.i = 0;
 375                         args.ap = (void *)((char *)wreq.wi_val + sizeof(i));
 376                         args.max = (void *)(&wreq + 1);
 377                         ieee80211_iterate_nodes(&ic->ic_scan,
 378                                 wi_read_ap_result, &args);
 379                         memcpy(wreq.wi_val, &args.i, sizeof(args.i));
 380                         wreq.wi_len = (sizeof(int) +
 381                                 sizeof(struct wi_apinfo) * args.i) / 2;
 382                 } else
 383                         error = EINPROGRESS;
 384                 break;
 385         case WI_RID_PRISM2:
 386                 /* NB: we lie so WI_RID_SCAN_RES can include rates */
 387                 wreq.wi_val[0] = 1;
 388                 wreq.wi_len = sizeof(u_int16_t) / 2;
 389                 break;
 390         case WI_RID_SCAN_RES:                   /* compatibility interface */
 391                 if ((ic->ic_flags & (IEEE80211_F_SCAN|IEEE80211_F_ASCAN)) == 0) {
 392                         struct wi_read_prism2_args args;
 393                         struct wi_scan_p2_hdr *p2;
 394
 395                         /* NB: use Prism2 format so we can include rate info */
 396                         p2 = (struct wi_scan_p2_hdr *)wreq.wi_val;
 397                         args.i = 0;
 398                         args.res = (void *)&p2[1];
 399                         args.max = (void *)(&wreq + 1);
 400                         ieee80211_iterate_nodes(&ic->ic_scan,
 401                                 wi_read_prism2_result, &args);
 402                         p2->wi_rsvd = 0;
 403                         p2->wi_reason = args.i;
 404                         wreq.wi_len = (sizeof(*p2) +
 405                                 sizeof(struct wi_scan_res) * args.i) / 2;
 406                 } else
 407                         error = EINPROGRESS;
 408                 break;
 409         case WI_RID_READ_CACHE: {
 410                 struct wi_read_sigcache_args args;
 411                 args.i = 0;
 412                 args.wsc = (struct wi_sigcache *) wreq.wi_val;
 413                 args.max = (void *)(&wreq + 1);
 414                 ieee80211_iterate_nodes(&ic->ic_scan, wi_read_sigcache, &args);
 415                 wreq.wi_len = sizeof(struct wi_sigcache) * args.i / 2;
 416                 break;
 417         }
 418         default:
 419                 error = EINVAL;
 420                 break;
 421         }
 422         if (error == 0) {
 423                 wreq.wi_len++;
 424                 error = copyout(&wreq, ifr->ifr_data, sizeof(wreq));
 425         }
 426         return error;
 427 }
 428
 429 static int
 430 findrate(struct ieee80211com *ic, enum ieee80211_phymode mode, int rate)
 431 {
 432 #define IEEERATE(_ic,_m,_i) \
 433         ((_ic)->ic_sup_rates[_m].rs_rates[_i] & IEEE80211_RATE_VAL)
 434         int i, nrates = ic->ic_sup_rates[mode].rs_nrates;
 435         for (i = 0; i < nrates; i++)
 436                 if (IEEERATE(ic, mode, i) == rate)
 437                         return i;
 438         return -1;
 439 #undef IEEERATE
 440 }
 441
 442 /*
 443  * Prepare to do a user-initiated scan for AP's.  If no
 444  * current/default channel is setup or the current channel
 445  * is invalid then pick the first available channel from
 446  * the active list as the place to start the scan.
 447  */
 448 static int
 449 ieee80211_setupscan(struct ieee80211com *ic, const u_int8_t chanlist[])
 450 {
 451
 452         /*
 453          * XXX don't permit a scan to be started unless we
 454          * know the device is ready.  For the moment this means
 455          * the device is marked up as this is the required to
 456          * initialize the hardware.  It would be better to permit
 457          * scanning prior to being up but that'll require some
 458          * changes to the infrastructure.
 459          */
 460         if (!IS_UP(ic))
 461                 return EINVAL;
 462         memcpy(ic->ic_chan_active, chanlist, sizeof(ic->ic_chan_active));
 463         /*
 464          * We force the state to INIT before calling ieee80211_new_state
 465          * to get ieee80211_begin_scan called.  We really want to scan w/o
 466          * altering the current state but that's not possible right now.
 467          */
 468         /* XXX handle proberequest case */
 469         ic->ic_state = IEEE80211_S_INIT;        /* XXX bypass state machine */
 470         return 0;
 471 }
 472
 473 int
 474 ieee80211_cfgset(struct ieee80211com *ic, u_long cmd, caddr_t data)
 475 {
 476         struct ifnet *ifp = ic->ic_ifp;
 477         int i, j, len, error, rate;
 478         struct ifreq *ifr = (struct ifreq *)data;
 479         struct wi_ltv_keys *keys;
 480         struct wi_req wreq;
 481         u_char chanlist[roundup(IEEE80211_CHAN_MAX, NBBY)];
 482
 483         error = copyin(ifr->ifr_data, &wreq, sizeof(wreq));
 484         if (error)
 485                 return error;
 486         len = wreq.wi_len ? (wreq.wi_len - 1) * 2 : 0;
 487         switch (wreq.wi_type) {
 488         case WI_RID_SERIALNO:
 489         case WI_RID_NODENAME:
 490                 return EPERM;
 491         case WI_RID_CURRENT_SSID:
 492                 return EPERM;
 493         case WI_RID_OWN_SSID:
 494         case WI_RID_DESIRED_SSID:
 495                 if (le16toh(wreq.wi_val[0]) * 2 > len ||
 496                     le16toh(wreq.wi_val[0]) > IEEE80211_NWID_LEN) {
 497                         error = ENOSPC;
 498                         break;
 499                 }
 500                 memset(ic->ic_des_essid, 0, sizeof(ic->ic_des_essid));
 501                 ic->ic_des_esslen = le16toh(wreq.wi_val[0]) * 2;
 502                 memcpy(ic->ic_des_essid, &wreq.wi_val[1], ic->ic_des_esslen);
 503                 error = ENETRESET;
 504                 break;
 505         case WI_RID_CURRENT_BSSID:
 506                 return EPERM;
 507         case WI_RID_OWN_CHNL:
 508                 if (len != 2)
 509                         return EINVAL;
 510                 i = le16toh(wreq.wi_val[0]);
 511                 if (i < 0 ||
 512                     i > IEEE80211_CHAN_MAX ||
 513                     isclr(ic->ic_chan_active, i))
 514                         return EINVAL;
 515                 ic->ic_ibss_chan = &ic->ic_channels[i];
 516                 if (ic->ic_opmode == IEEE80211_M_MONITOR)
 517                         error = IS_UP(ic) ? ic->ic_reset(ic->ic_ifp) : 0;
 518                 else
 519                         error = ENETRESET;
 520                 break;
 521         case WI_RID_CURRENT_CHAN:
 522                 return EPERM;
 523         case WI_RID_COMMS_QUALITY:
 524                 return EPERM;
 525         case WI_RID_PROMISC:
 526                 if (len != 2)
 527                         return EINVAL;
 528                 if (ifp->if_flags & IFF_PROMISC) {
 529                         if (wreq.wi_val[0] == 0) {
 530                                 ifp->if_flags &= ~IFF_PROMISC;
 531                                 error = ENETRESET;
 532                         }
 533                 } else {
 534                         if (wreq.wi_val[0] != 0) {
 535                                 ifp->if_flags |= IFF_PROMISC;
 536                                 error = ENETRESET;
 537                         }
 538                 }
 539                 break;
 540         case WI_RID_PORTTYPE:
 541                 if (len != 2)
 542                         return EINVAL;
 543                 switch (le16toh(wreq.wi_val[0])) {
 544                 case IEEE80211_M_STA:
 545                         break;
 546                 case IEEE80211_M_IBSS:
 547                         if (!(ic->ic_caps & IEEE80211_C_IBSS))
 548                                 return EINVAL;
 549                         break;
 550                 case IEEE80211_M_AHDEMO:
 551                         if (ic->ic_phytype != IEEE80211_T_DS ||
 552                             !(ic->ic_caps & IEEE80211_C_AHDEMO))
 553                                 return EINVAL;
 554                         break;
 555                 case IEEE80211_M_HOSTAP:
 556                         if (!(ic->ic_caps & IEEE80211_C_HOSTAP))
 557                                 return EINVAL;
 558                         break;
 559                 default:
 560                         return EINVAL;
 561                 }
 562                 if (le16toh(wreq.wi_val[0]) != ic->ic_opmode) {
 563                         ic->ic_opmode = le16toh(wreq.wi_val[0]);
 564                         error = IS_UP(ic) ? ic->ic_reset(ic->ic_ifp) : 0;
 565                 }
 566                 break;
 567 #if 0
 568         case WI_RID_MAC_NODE:
 569                 if (len != IEEE80211_ADDR_LEN)
 570                         return EINVAL;
 571                 IEEE80211_ADDR_COPY(LLADDR(ifp->if_sadl), wreq.wi_val);
 572                 /* if_init will copy lladdr into ic_myaddr */
 573                 error = ENETRESET;
 574                 break;
 575 #endif
 576         case WI_RID_TX_RATE:
 577                 if (len != 2)
 578                         return EINVAL;
 579                 if (wreq.wi_val[0] == 0) {
 580                         /* auto */
 581                         ic->ic_fixed_rate = IEEE80211_FIXED_RATE_NONE;
 582                         break;
 583                 }
 584                 rate = 2 * le16toh(wreq.wi_val[0]);
 585                 if (ic->ic_curmode == IEEE80211_MODE_AUTO) {
 586                         /*
 587                          * In autoselect mode search for the rate.  We take
 588                          * the first instance which may not be right, but we
 589                          * are limited by the interface.  Note that we also
 590                          * lock the mode to insure the rate is meaningful
 591                          * when it is used.
 592                          */
 593                         for (j = IEEE80211_MODE_11A;
 594                              j < IEEE80211_MODE_MAX; j++) {
 595                                 if ((ic->ic_modecaps & (1<<j)) == 0)
 596                                         continue;
 597                                 i = findrate(ic, j, rate);
 598                                 if (i != -1) {
 599                                         /* lock mode too */
 600                                         ic->ic_curmode = j;
 601                                         goto setrate;
 602                                 }
 603                         }
 604                 } else {
 605                         i = findrate(ic, ic->ic_curmode, rate);
 606                         if (i != -1)
 607                                 goto setrate;
 608                 }
 609                 return EINVAL;
 610         setrate:
 611                 ic->ic_fixed_rate = i;
 612                 error = IS_UP(ic) ? ic->ic_reset(ic->ic_ifp) : 0;
 613                 break;
 614         case WI_RID_CUR_TX_RATE:
 615                 return EPERM;
 616         case WI_RID_RTS_THRESH:
 617                 if (len != 2)
 618                         return EINVAL;
 619                 if (le16toh(wreq.wi_val[0]) != IEEE80211_MAX_LEN)
 620                         return EINVAL;          /* TODO: RTS */
 621                 break;
 622         case WI_RID_CREATE_IBSS:
 623                 if (len != 2)
 624                         return EINVAL;
 625                 if (wreq.wi_val[0] != 0) {
 626                         if ((ic->ic_caps & IEEE80211_C_IBSS) == 0)
 627                                 return EINVAL;
 628                         if ((ic->ic_flags & IEEE80211_F_IBSSON) == 0) {
 629                                 ic->ic_flags |= IEEE80211_F_IBSSON;
 630                                 if (ic->ic_opmode == IEEE80211_M_IBSS &&
 631                                     ic->ic_state == IEEE80211_S_SCAN)
 632                                         error = IS_UP_AUTO(ic) ? ENETRESET : 0;
 633                         }
 634                 } else {
 635                         if (ic->ic_flags & IEEE80211_F_IBSSON) {
 636                                 ic->ic_flags &= ~IEEE80211_F_IBSSON;
 637                                 if (ic->ic_flags & IEEE80211_F_SIBSS) {
 638                                         ic->ic_flags &= ~IEEE80211_F_SIBSS;
 639                                         error = IS_UP_AUTO(ic) ? ENETRESET : 0;
 640                                 }
 641                         }
 642                 }
 643                 break;
 644         case WI_RID_MICROWAVE_OVEN:
 645                 if (len != 2)
 646                         return EINVAL;
 647                 if (wreq.wi_val[0] != 0)
 648                         return EINVAL;          /* not supported */
 649                 break;
 650         case WI_RID_ROAMING_MODE:
 651                 if (len != 2)
 652                         return EINVAL;
 653                 i = le16toh(wreq.wi_val[0]);
 654                 if (i > IEEE80211_ROAMING_MANUAL)
 655                         return EINVAL;          /* not supported */
 656                 ic->ic_roaming = i;
 657                 break;
 658         case WI_RID_SYSTEM_SCALE:
 659                 if (len != 2)
 660                         return EINVAL;
 661                 if (le16toh(wreq.wi_val[0]) != 1)
 662                         return EINVAL;          /* not supported */
 663                 break;
 664         case WI_RID_PM_ENABLED:
 665                 if (len != 2)
 666                         return EINVAL;
 667                 if (wreq.wi_val[0] != 0) {
 668                         if ((ic->ic_caps & IEEE80211_C_PMGT) == 0)
 669                                 return EINVAL;
 670                         if ((ic->ic_flags & IEEE80211_F_PMGTON) == 0) {
 671                                 ic->ic_flags |= IEEE80211_F_PMGTON;
 672                                 error = IS_UP(ic) ? ic->ic_reset(ic->ic_ifp) : 0;
 673                         }
 674                 } else {
 675                         if (ic->ic_flags & IEEE80211_F_PMGTON) {
 676                                 ic->ic_flags &= ~IEEE80211_F_PMGTON;
 677                                 error = IS_UP(ic) ? ic->ic_reset(ic->ic_ifp) : 0;
 678                         }
 679                 }
 680                 break;
 681         case WI_RID_MAX_SLEEP:
 682                 if (len != 2)
 683                         return EINVAL;
 684                 ic->ic_lintval = le16toh(wreq.wi_val[0]);
 685                 if (ic->ic_flags & IEEE80211_F_PMGTON)
 686                         error = IS_UP(ic) ? ic->ic_reset(ic->ic_ifp) : 0;
 687                 break;
 688         case WI_RID_CUR_BEACON_INT:
 689                 return EPERM;
 690         case WI_RID_WEP_AVAIL:
 691                 return EPERM;
 692         case WI_RID_CNFAUTHMODE:
 693                 if (len != 2)
 694                         return EINVAL;
 695                 i = le16toh(wreq.wi_val[0]);
 696                 if (i > IEEE80211_AUTH_WPA)
 697                         return EINVAL;
 698                 ic->ic_bss->ni_authmode = i;            /* XXX ENETRESET? */
 699                 error = ENETRESET;
 700                 break;
 701         case WI_RID_ENCRYPTION:
 702                 if (len != 2)
 703                         return EINVAL;
 704                 if (wreq.wi_val[0] != 0) {
 705                         if ((ic->ic_caps & IEEE80211_C_WEP) == 0)
 706                                 return EINVAL;
 707                         if ((ic->ic_flags & IEEE80211_F_PRIVACY) == 0) {
 708                                 ic->ic_flags |= IEEE80211_F_PRIVACY;
 709                                 error = ENETRESET;
 710                         }
 711                 } else {
 712                         if (ic->ic_flags & IEEE80211_F_PRIVACY) {
 713                                 ic->ic_flags &= ~IEEE80211_F_PRIVACY;
 714                                 error = ENETRESET;
 715                         }
 716                 }
 717                 break;
 718         case WI_RID_TX_CRYPT_KEY:
 719                 if (len != 2)
 720                         return EINVAL;
 721                 i = le16toh(wreq.wi_val[0]);
 722                 if (i >= IEEE80211_WEP_NKID)
 723                         return EINVAL;
 724                 ic->ic_def_txkey = i;
 725                 error = IS_UP(ic) ? ic->ic_reset(ic->ic_ifp) : 0;
 726                 break;
 727         case WI_RID_DEFLT_CRYPT_KEYS:
 728                 if (len != sizeof(struct wi_ltv_keys))
 729                         return EINVAL;
 730                 keys = (struct wi_ltv_keys *)&wreq;
 731                 for (i = 0; i < IEEE80211_WEP_NKID; i++) {
 732                         len = le16toh(keys->wi_keys[i].wi_keylen);
 733                         if (len != 0 && len < IEEE80211_WEP_KEYLEN)
 734                                 return EINVAL;
 735                         if (len > IEEE80211_KEYBUF_SIZE)
 736                                 return EINVAL;
 737                 }
 738                 for (i = 0; i < IEEE80211_WEP_NKID; i++) {
 739                         struct ieee80211_key *k = &ic->ic_nw_keys[i];
 740
 741                         len = le16toh(keys->wi_keys[i].wi_keylen);
 742                         k->wk_keylen = len;
 743                         k->wk_flags = IEEE80211_KEY_XMIT | IEEE80211_KEY_RECV;
 744                         memset(k->wk_key, 0, sizeof(k->wk_key));
 745                         memcpy(k->wk_key, keys->wi_keys[i].wi_keydat, len);
 746 #if 0
 747                         k->wk_type = IEEE80211_CIPHER_WEP;
 748 #endif
 749                 }
 750                 error = ENETRESET;
 751                 break;
 752         case WI_RID_MAX_DATALEN:
 753                 if (len != 2)
 754                         return EINVAL;
 755                 len = le16toh(wreq.wi_val[0]);
 756                 if (len < 350 /* ? */ || len > IEEE80211_MAX_LEN)
 757                         return EINVAL;
 758                 ic->ic_fragthreshold = len;
 759                 error = IS_UP(ic) ? ic->ic_reset(ic->ic_ifp) : 0;
 760                 break;
 761         case WI_RID_IFACE_STATS:
 762                 error = EPERM;
 763                 break;
 764         case WI_RID_SCAN_REQ:                   /* XXX wicontrol */
 765                 if (ic->ic_opmode == IEEE80211_M_HOSTAP)
 766                         break;
 767                 error = ieee80211_setupscan(ic, ic->ic_chan_avail);
 768                 if (error == 0)
 769                         error = ieee80211_new_state(ic, IEEE80211_S_SCAN, -1);
 770                 break;
 771         case WI_RID_SCAN_APS:
 772                 if (ic->ic_opmode == IEEE80211_M_HOSTAP)
 773                         break;
 774                 len--;                  /* XXX: tx rate? */
 775                 /* FALLTHRU */
 776         case WI_RID_CHANNEL_LIST:
 777                 memset(chanlist, 0, sizeof(chanlist));
 778                 /*
 779                  * Since channel 0 is not available for DS, channel 1
 780                  * is assigned to LSB on WaveLAN.
 781                  */
 782                 if (ic->ic_phytype == IEEE80211_T_DS)
 783                         i = 1;
 784                 else
 785                         i = 0;
 786                 for (j = 0; i <= IEEE80211_CHAN_MAX; i++, j++) {
 787                         if ((j / 8) >= len)
 788                                 break;
 789                         if (isclr((u_int8_t *)wreq.wi_val, j))
 790                                 continue;
 791                         if (isclr(ic->ic_chan_active, i)) {
 792                                 if (wreq.wi_type != WI_RID_CHANNEL_LIST)
 793                                         continue;
 794                                 if (isclr(ic->ic_chan_avail, i))
 795                                         return EPERM;
 796                         }
 797                         setbit(chanlist, i);
 798                 }
 799                 error = ieee80211_setupscan(ic, chanlist);
 800                 if (wreq.wi_type == WI_RID_CHANNEL_LIST) {
 801                         /* NB: ignore error from ieee80211_setupscan */
 802                         error = ENETRESET;
 803                 } else if (error == 0)
 804                         error = ieee80211_new_state(ic, IEEE80211_S_SCAN, -1);
 805                 break;
 806         default:
 807                 error = EINVAL;
 808                 break;
 809         }
 810         if (error == ENETRESET && !IS_UP_AUTO(ic))
 811                 error = 0;
 812         return error;
 813 }
 814
 815 static int
 816 cap2cipher(int flag)
 817 {
 818         switch (flag) {
 819         case IEEE80211_C_WEP:           return IEEE80211_CIPHER_WEP;
 820         case IEEE80211_C_AES:           return IEEE80211_CIPHER_AES_OCB;
 821         case IEEE80211_C_AES_CCM:       return IEEE80211_CIPHER_AES_CCM;
 822         case IEEE80211_C_CKIP:          return IEEE80211_CIPHER_CKIP;
 823         case IEEE80211_C_TKIP:          return IEEE80211_CIPHER_TKIP;
 824         }
 825         return -1;
 826 }
 827
 828 static int
 829 ieee80211_ioctl_getkey(struct ieee80211com *ic, struct ieee80211req *ireq)
 830 {
 831         struct ieee80211_node *ni;
 832         struct ieee80211req_key ik;
 833         struct ieee80211_key *wk;
 834         const struct ieee80211_cipher *cip;
 835         u_int kid;
 836         int error;
 837
 838         if (ireq->i_len != sizeof(ik))
 839                 return EINVAL;
 840         error = copyin(ireq->i_data, &ik, sizeof(ik));
 841         if (error)
 842                 return error;
 843         kid = ik.ik_keyix;
 844         if (kid == IEEE80211_KEYIX_NONE) {
 845                 ni = ieee80211_find_node(&ic->ic_sta, ik.ik_macaddr);
 846                 if (ni == NULL)
 847                         return EINVAL;          /* XXX */
 848                 wk = &ni->ni_ucastkey;
 849         } else {
 850                 if (kid >= IEEE80211_WEP_NKID)
 851                         return EINVAL;
 852                 wk = &ic->ic_nw_keys[kid];
 853                 IEEE80211_ADDR_COPY(&ik.ik_macaddr, ic->ic_bss->ni_macaddr);
 854                 ni = NULL;
 855         }
 856         cip = wk->wk_cipher;
 857         ik.ik_type = cip->ic_cipher;
 858         ik.ik_keylen = wk->wk_keylen;
 859         ik.ik_flags = wk->wk_flags & (IEEE80211_KEY_XMIT | IEEE80211_KEY_RECV);
 860         if (wk->wk_keyix == ic->ic_def_txkey)
 861                 ik.ik_flags |= IEEE80211_KEY_DEFAULT;
 862         if (suser(curthread) == 0) {
 863                 /* NB: only root can read key data */
 864                 ik.ik_keyrsc = wk->wk_keyrsc;
 865                 ik.ik_keytsc = wk->wk_keytsc;
 866                 memcpy(ik.ik_keydata, wk->wk_key, wk->wk_keylen);
 867                 if (cip->ic_cipher == IEEE80211_CIPHER_TKIP) {
 868                         memcpy(ik.ik_keydata+wk->wk_keylen,
 869                                 wk->wk_key + IEEE80211_KEYBUF_SIZE,
 870                                 IEEE80211_MICBUF_SIZE);
 871                         ik.ik_keylen += IEEE80211_MICBUF_SIZE;
 872                 }
 873         } else {
 874                 ik.ik_keyrsc = 0;
 875                 ik.ik_keytsc = 0;
 876                 memset(ik.ik_keydata, 0, sizeof(ik.ik_keydata));
 877         }
 878         if (ni != NULL)
 879                 ieee80211_free_node(ni);
 880         return copyout(&ik, ireq->i_data, sizeof(ik));
 881 }
 882
 883 static int
 884 ieee80211_ioctl_getchanlist(struct ieee80211com *ic, struct ieee80211req *ireq)
 885 {
 886
 887         if (sizeof(ic->ic_chan_active) < ireq->i_len)
 888                 ireq->i_len = sizeof(ic->ic_chan_active);
 889         return copyout(&ic->ic_chan_active, ireq->i_data, ireq->i_len);
 890 }
 891
 892 static int
 893 ieee80211_ioctl_getchaninfo(struct ieee80211com *ic, struct ieee80211req *ireq)
 894 {
 895         struct ieee80211req_chaninfo chans;     /* XXX off stack? */
 896         int i, space;
 897
 898         /*
 899          * Since channel 0 is not available for DS, channel 1
 900          * is assigned to LSB on WaveLAN.
 901          */
 902         if (ic->ic_phytype == IEEE80211_T_DS)
 903                 i = 1;
 904         else
 905                 i = 0;
 906         memset(&chans, 0, sizeof(chans));
 907         for (; i <= IEEE80211_CHAN_MAX; i++)
 908                 if (isset(ic->ic_chan_avail, i)) {
 909                         struct ieee80211_channel *c = &ic->ic_channels[i];
 910                         chans.ic_chans[chans.ic_nchans].ic_freq = c->ic_freq;
 911                         chans.ic_chans[chans.ic_nchans].ic_flags = c->ic_flags;
 912                         chans.ic_nchans++;
 913                 }
 914         space = __offsetof(struct ieee80211req_chaninfo,
 915                         ic_chans[chans.ic_nchans]);
 916         if (space > ireq->i_len)
 917                 space = ireq->i_len;
 918         return copyout(&chans, ireq->i_data, space);
 919 }
 920
 921 static int
 922 ieee80211_ioctl_getwpaie(struct ieee80211com *ic, struct ieee80211req *ireq)
 923 {
 924         struct ieee80211_node *ni;
 925         struct ieee80211req_wpaie wpaie;
 926         int error;
 927
 928         if (ireq->i_len < IEEE80211_ADDR_LEN)
 929                 return EINVAL;
 930         error = copyin(ireq->i_data, wpaie.wpa_macaddr, IEEE80211_ADDR_LEN);
 931         if (error != 0)
 932                 return error;
 933         ni = ieee80211_find_node(&ic->ic_sta, wpaie.wpa_macaddr);
 934         if (ni == NULL)
 935                 return EINVAL;          /* XXX */
 936         memset(wpaie.wpa_ie, 0, sizeof(wpaie.wpa_ie));
 937         if (ni->ni_wpa_ie != NULL) {
 938                 int ielen = ni->ni_wpa_ie[1] + 2;
 939                 if (ielen > sizeof(wpaie.wpa_ie))
 940                         ielen = sizeof(wpaie.wpa_ie);
 941                 memcpy(wpaie.wpa_ie, ni->ni_wpa_ie, ielen);
 942         }
 943         ieee80211_free_node(ni);
 944         if (ireq->i_len > sizeof(wpaie))
 945                 ireq->i_len = sizeof(wpaie);
 946         return copyout(&wpaie, ireq->i_data, ireq->i_len);
 947 }
 948
 949 static int
 950 ieee80211_ioctl_getstastats(struct ieee80211com *ic, struct ieee80211req *ireq)
 951 {
 952         struct ieee80211_node *ni;
 953         u_int8_t macaddr[IEEE80211_ADDR_LEN];
 954         const int off = __offsetof(struct ieee80211req_sta_stats, is_stats);
 955         int error;
 956
 957         if (ireq->i_len < off)
 958                 return EINVAL;
 959         error = copyin(ireq->i_data, macaddr, IEEE80211_ADDR_LEN);
 960         if (error != 0)
 961                 return error;
 962         ni = ieee80211_find_node(&ic->ic_sta, macaddr);
 963         if (ni == NULL)
 964                 return EINVAL;          /* XXX */
 965         if (ireq->i_len > sizeof(struct ieee80211req_sta_stats))
 966                 ireq->i_len = sizeof(struct ieee80211req_sta_stats);
 967         /* NB: copy out only the statistics */
 968         error = copyout(&ni->ni_stats, (u_int8_t *) ireq->i_data + off,
 969                         ireq->i_len - off);
 970         ieee80211_free_node(ni);
 971         return error;
 972 }
 973
 974 #define COMPAT_FREEBSD6
 975 #ifdef COMPAT_FREEBSD6
 976 #define IEEE80211_IOC_SCAN_RESULTS_OLD  24
 977
 978 struct scan_result_old {
 979         u_int16_t       isr_len;                /* length (mult of 4) */
 980         u_int16_t       isr_freq;               /* MHz */
 981         u_int16_t       isr_flags;              /* channel flags */
 982         u_int8_t        isr_noise;
 983         u_int8_t        isr_rssi;
 984         u_int8_t        isr_intval;             /* beacon interval */
 985         u_int8_t        isr_capinfo;            /* capabilities */
 986         u_int8_t        isr_erp;                /* ERP element */
 987         u_int8_t        isr_bssid[IEEE80211_ADDR_LEN];
 988         u_int8_t        isr_nrates;
 989         u_int8_t        isr_rates[IEEE80211_RATE_MAXSIZE];
 990         u_int8_t        isr_ssid_len;           /* SSID length */
 991         u_int8_t        isr_ie_len;             /* IE length */
 992         u_int8_t        isr_pad[5];
 993         /* variable length SSID followed by IE data */
 994 };
 995
 996 static void
 997 old_get_scan_result(struct scan_result_old *sr,
 998         const struct ieee80211_node *ni)
 999 {
1000         struct ieee80211com *ic = ni->ni_ic;
1001         u_int ielen;
1002
1003         memset(sr, 0, sizeof(*sr));
1004         sr->isr_ssid_len = ni->ni_esslen;
1005         ielen = 0;
1006         if (ni->ni_wpa_ie != NULL)
1007                 ielen += 2+ni->ni_wpa_ie[1];
1008         if (ni->ni_wme_ie != NULL)
1009                 ielen += 2+ni->ni_wme_ie[1];
1010         /* NB: beware of overflow, isr_ie_len is 8 bits */
1011         sr->isr_ie_len = (ielen > 255 ? 0 : ielen);
1012         sr->isr_len = sizeof(*sr) + sr->isr_ssid_len + sr->isr_ie_len;
1013         sr->isr_len = roundup(sr->isr_len, sizeof(u_int32_t));
1014         if (ni->ni_chan != IEEE80211_CHAN_ANYC) {
1015                 sr->isr_freq = ni->ni_chan->ic_freq;
1016                 sr->isr_flags = ni->ni_chan->ic_flags;
1017         }
1018         sr->isr_rssi = ic->ic_node_getrssi(ni);
1019         sr->isr_intval = ni->ni_intval;
1020         sr->isr_capinfo = ni->ni_capinfo;
1021         sr->isr_erp = ni->ni_erp;
1022         IEEE80211_ADDR_COPY(sr->isr_bssid, ni->ni_bssid);
1023         sr->isr_nrates = ni->ni_rates.rs_nrates;
1024         if (sr->isr_nrates > 15)
1025                 sr->isr_nrates = 15;
1026         memcpy(sr->isr_rates, ni->ni_rates.rs_rates, sr->isr_nrates);
1027 }
1028
1029 static int
1030 old_getscanresults(struct ieee80211com *ic, struct ieee80211req *ireq)
1031 {
1032         union {
1033                 struct scan_result_old res;
1034                 char data[512];         /* XXX shrink? */
1035         } u;
1036         struct scan_result_old *sr = &u.res;
1037         struct ieee80211_node_table *nt;
1038         struct ieee80211_node *ni;
1039         int error, space;
1040         u_int8_t *p, *cp;
1041
1042         p = ireq->i_data;
1043         space = ireq->i_len;
1044         error = 0;
1045         /* XXX locking */
1046         nt =  &ic->ic_scan;
1047         TAILQ_FOREACH(ni, &nt->nt_node, ni_list) {
1048                 /* NB: skip pre-scan node state */
1049                 if (ni->ni_chan == IEEE80211_CHAN_ANYC)
1050                         continue;
1051                 old_get_scan_result(sr, ni);
1052                 if (sr->isr_len > sizeof(u))
1053                         continue;               /* XXX */
1054                 if (space < sr->isr_len)
1055                         break;
1056                 cp = (u_int8_t *)(sr+1);
1057                 memcpy(cp, ni->ni_essid, ni->ni_esslen);
1058                 cp += ni->ni_esslen;
1059                 if (sr->isr_ie_len) {
1060                         if (ni->ni_wpa_ie != NULL) {
1061                                 memcpy(cp, ni->ni_wpa_ie, 2+ni->ni_wpa_ie[1]);
1062                                 cp += 2+ni->ni_wpa_ie[1];
1063                         }
1064                         if (ni->ni_wme_ie != NULL) {
1065                                 memcpy(cp, ni->ni_wme_ie, 2+ni->ni_wme_ie[1]);
1066                                 cp += 2+ni->ni_wme_ie[1];
1067                         }
1068                 }
1069                 error = copyout(sr, p, sr->isr_len);
1070                 if (error)
1071                         break;
1072                 p += sr->isr_len;
1073                 space -= sr->isr_len;
1074         }
1075         ireq->i_len -= space;
1076         return error;
1077 }
1078 #endif /* COMPAT_FREEBSD6 */
1079
1080 struct scanresultsreq {
1081         struct ieee80211req_scan_result *sr;
1082         size_t  space;
1083 };
1084
1085 static size_t
1086 scan_space(const struct ieee80211_node *ni, size_t *ielen)
1087 {
1088         size_t len;
1089
1090         *ielen = 0;
1091         if (ni->ni_wpa_ie != NULL)
1092                 *ielen += 2+ni->ni_wpa_ie[1];
1093         if (ni->ni_wme_ie != NULL)
1094                 *ielen += 2+ni->ni_wme_ie[1];
1095         /*
1096          * NB: ie's can be no more than 255 bytes and the max 802.11
1097          * packet is <3Kbytes so we are sure this doesn't overflow
1098          * 16-bits; if this is a concern we can drop the ie's.
1099          */
1100         len = sizeof(struct ieee80211req_scan_result) + ni->ni_esslen + *ielen;
1101         return roundup(len, sizeof(u_int32_t));
1102 }
1103
1104 static void
1105 get_scan_space(void *arg, struct ieee80211_node *ni)
1106 {
1107         struct scanresultsreq *req = arg;
1108         size_t ielen;
1109
1110         req->space += scan_space(ni, &ielen);
1111 }
1112
1113 static void
1114 get_scan_result(void *arg, struct ieee80211_node *ni)
1115 {
1116         struct scanresultsreq *req = arg;
1117         struct ieee80211com *ic = ni->ni_ic;
1118         struct ieee80211req_scan_result *sr;
1119         size_t ielen, len;
1120         u_int8_t *cp;
1121
1122         len = scan_space(ni, &ielen);
1123         if (len > req->space)
1124                 return;
1125         sr = req->sr;
1126         KASSERT(len <= 65535 && ielen <= 65535,
1127             ("len %zu ssid %u ie %zu", len, ni->ni_esslen, ielen));
1128         sr->isr_len = len;
1129         sr->isr_ssid_len = ni->ni_esslen;
1130         sr->isr_ie_len = ielen;
1131         if (ni->ni_chan != IEEE80211_CHAN_ANYC) {
1132                 sr->isr_freq = ni->ni_chan->ic_freq;
1133                 sr->isr_flags = ni->ni_chan->ic_flags;
1134         }
1135         /* XXX need to rev driver apis for signal data */
1136         sr->isr_rssi = (int8_t) ic->ic_node_getrssi(ni);
1137         sr->isr_intval = ni->ni_intval;
1138         sr->isr_capinfo = ni->ni_capinfo;
1139         sr->isr_erp = ni->ni_erp;
1140         IEEE80211_ADDR_COPY(sr->isr_bssid, ni->ni_bssid);
1141         sr->isr_nrates = ni->ni_rates.rs_nrates;
1142         if (sr->isr_nrates > 15)
1143                 sr->isr_nrates = 15;
1144         memcpy(sr->isr_rates, ni->ni_rates.rs_rates, sr->isr_nrates);
1145         cp = (u_int8_t *)(sr+1);
1146         memcpy(cp, ni->ni_essid, ni->ni_esslen);
1147         cp += ni->ni_esslen;
1148         if (sr->isr_ie_len) {
1149                 if (ni->ni_wpa_ie != NULL) {
1150                         memcpy(cp, ni->ni_wpa_ie, 2+ni->ni_wpa_ie[1]);
1151                         cp += 2+ni->ni_wpa_ie[1];
1152                 }
1153                 if (ni->ni_wme_ie != NULL) {
1154                         memcpy(cp, ni->ni_wme_ie, 2+ni->ni_wme_ie[1]);
1155                         cp += 2+ni->ni_wme_ie[1];
1156                 }
1157         }
1158
1159         req->sr = (struct ieee80211req_scan_result *)(((u_int8_t *)sr) + len);
1160         req->space -= len;
1161 }
1162
1163 static int
1164 ieee80211_ioctl_getscanresults(struct ieee80211com *ic, struct ieee80211req *ireq)
1165 {
1166         struct scanresultsreq req;
1167         int error;
1168
1169         if (ireq->i_len < sizeof(struct scanresultsreq))
1170                 return EFAULT;
1171
1172         error = 0;
1173         req.space = 0;
1174         ieee80211_iterate_nodes(&ic->ic_scan, get_scan_space, &req);
1175         if (req.space > ireq->i_len)
1176                 req.space = ireq->i_len;
1177         if (req.space > 0) {
1178                 size_t space;
1179                 void *p;
1180
1181                 space = req.space;
1182                 /* XXX M_WAITOK after driver lock released */
1183                 MALLOC(p, void *, space, M_TEMP, M_NOWAIT | M_ZERO);
1184                 if (p == NULL)
1185                         return ENOMEM;
1186                 req.sr = p;
1187                 ieee80211_iterate_nodes(&ic->ic_scan, get_scan_result, &req);
1188                 ireq->i_len = space - req.space;
1189                 error = copyout(p, ireq->i_data, ireq->i_len);
1190                 FREE(p, M_TEMP);
1191         } else
1192                 ireq->i_len = 0;
1193
1194         return error;
1195 }
1196
1197 struct stainforeq {
1198         struct ieee80211com *ic;
1199         struct ieee80211req_sta_info *si;
1200         size_t  space;
1201 };
1202
1203 static size_t
1204 sta_space(const struct ieee80211_node *ni, size_t *ielen)
1205 {
1206         *ielen = 0;
1207         if (ni->ni_wpa_ie != NULL)
1208                 *ielen += 2+ni->ni_wpa_ie[1];
1209         if (ni->ni_wme_ie != NULL)
1210                 *ielen += 2+ni->ni_wme_ie[1];
1211         return roundup(sizeof(struct ieee80211req_sta_info) + *ielen,
1212                       sizeof(u_int32_t));
1213 }
1214
1215 static void
1216 get_sta_space(void *arg, struct ieee80211_node *ni)
1217 {
1218         struct stainforeq *req = arg;
1219         struct ieee80211com *ic = ni->ni_ic;
1220         size_t ielen;
1221
1222         if (ic->ic_opmode == IEEE80211_M_HOSTAP &&
1223             ni->ni_associd == 0)        /* only associated stations */
1224                 return;
1225         req->space += sta_space(ni, &ielen);
1226 }
1227
1228 static void
1229 get_sta_info(void *arg, struct ieee80211_node *ni)
1230 {
1231         struct stainforeq *req = arg;
1232         struct ieee80211com *ic = ni->ni_ic;
1233         struct ieee80211req_sta_info *si;
1234         size_t ielen, len;
1235         u_int8_t *cp;
1236
1237         if (ic->ic_opmode == IEEE80211_M_HOSTAP &&
1238             ni->ni_associd == 0)        /* only associated stations */
1239                 return;
1240         if (ni->ni_chan == IEEE80211_CHAN_ANYC) /* XXX bogus entry */
1241                 return;
1242         len = sta_space(ni, &ielen);
1243         if (len > req->space)
1244                 return;
1245         si = req->si;
1246         KASSERT(len <= 65535 && ielen <= 65535, ("len %zu ie %zu", len, ielen));
1247         si->isi_len = len;
1248         si->isi_ie_len = ielen;
1249         si->isi_freq = ni->ni_chan->ic_freq;
1250         si->isi_flags = ni->ni_chan->ic_flags;
1251         si->isi_state = ni->ni_flags;
1252         si->isi_authmode = ni->ni_authmode;
1253         si->isi_rssi = ic->ic_node_getrssi(ni);
1254         si->isi_capinfo = ni->ni_capinfo;
1255         si->isi_erp = ni->ni_erp;
1256         IEEE80211_ADDR_COPY(si->isi_macaddr, ni->ni_macaddr);
1257         si->isi_nrates = ni->ni_rates.rs_nrates;
1258         if (si->isi_nrates > 15)
1259                 si->isi_nrates = 15;
1260         memcpy(si->isi_rates, ni->ni_rates.rs_rates, si->isi_nrates);
1261         si->isi_txrate = ni->ni_txrate;
1262         si->isi_associd = ni->ni_associd;
1263         si->isi_txpower = ni->ni_txpower;
1264         si->isi_vlan = ni->ni_vlan;
1265         if (ni->ni_flags & IEEE80211_NODE_QOS) {
1266                 memcpy(si->isi_txseqs, ni->ni_txseqs, sizeof(ni->ni_txseqs));
1267                 memcpy(si->isi_rxseqs, ni->ni_rxseqs, sizeof(ni->ni_rxseqs));
1268         } else {
1269                 si->isi_txseqs[0] = ni->ni_txseqs[0];
1270                 si->isi_rxseqs[0] = ni->ni_rxseqs[0];
1271         }
1272         /* NB: leave all cases in case we relax ni_associd == 0 check */
1273         if (ieee80211_node_is_authorized(ni))
1274                 si->isi_inact = ic->ic_inact_run;
1275         else if (ni->ni_associd != 0)
1276                 si->isi_inact = ic->ic_inact_auth;
1277         else
1278                 si->isi_inact = ic->ic_inact_init;
1279         si->isi_inact = (si->isi_inact - ni->ni_inact) * IEEE80211_INACT_WAIT;
1280
1281         cp = (u_int8_t *)(si+1);
1282         if (ni->ni_wpa_ie != NULL) {
1283                 memcpy(cp, ni->ni_wpa_ie, 2+ni->ni_wpa_ie[1]);
1284                 cp += 2+ni->ni_wpa_ie[1];
1285         }
1286         if (ni->ni_wme_ie != NULL) {
1287                 memcpy(cp, ni->ni_wme_ie, 2+ni->ni_wme_ie[1]);
1288                 cp += 2+ni->ni_wme_ie[1];
1289         }
1290
1291         req->si = (struct ieee80211req_sta_info *)(((u_int8_t *)si) + len);
1292         req->space -= len;
1293 }
1294
1295 static int
1296 ieee80211_ioctl_getstainfo(struct ieee80211com *ic, struct ieee80211req *ireq)
1297 {
1298         struct stainforeq req;
1299         int error;
1300
1301         if (ireq->i_len < sizeof(struct stainforeq))
1302                 return EFAULT;
1303
1304         error = 0;
1305         req.space = 0;
1306         ieee80211_iterate_nodes(&ic->ic_sta, get_sta_space, &req);
1307         if (req.space > ireq->i_len)
1308                 req.space = ireq->i_len;
1309         if (req.space > 0) {
1310                 size_t space;
1311                 void *p;
1312
1313                 space = req.space;
1314                 /* XXX M_WAITOK after driver lock released */
1315                 MALLOC(p, void *, space, M_TEMP, M_NOWAIT);
1316                 if (p == NULL)
1317                         return ENOMEM;
1318                 req.si = p;
1319                 ieee80211_iterate_nodes(&ic->ic_sta, get_sta_info, &req);
1320                 ireq->i_len = space - req.space;
1321                 error = copyout(p, ireq->i_data, ireq->i_len);
1322                 FREE(p, M_TEMP);
1323         } else
1324                 ireq->i_len = 0;
1325
1326         return error;
1327 }
1328
1329 static int
1330 ieee80211_ioctl_getstatxpow(struct ieee80211com *ic, struct ieee80211req *ireq)
1331 {
1332         struct ieee80211_node *ni;
1333         struct ieee80211req_sta_txpow txpow;
1334         int error;
1335
1336         if (ireq->i_len != sizeof(txpow))
1337                 return EINVAL;
1338         error = copyin(ireq->i_data, &txpow, sizeof(txpow));
1339         if (error != 0)
1340                 return error;
1341         ni = ieee80211_find_node(&ic->ic_sta, txpow.it_macaddr);
1342         if (ni == NULL)
1343                 return EINVAL;          /* XXX */
1344         txpow.it_txpow = ni->ni_txpower;
1345         error = copyout(&txpow, ireq->i_data, sizeof(txpow));
1346         ieee80211_free_node(ni);
1347         return error;
1348 }
1349
1350 static int
1351 ieee80211_ioctl_getwmeparam(struct ieee80211com *ic, struct ieee80211req *ireq)
1352 {
1353         struct ieee80211_wme_state *wme = &ic->ic_wme;
1354         struct wmeParams *wmep;
1355         int ac;
1356
1357         if ((ic->ic_caps & IEEE80211_C_WME) == 0)
1358                 return EINVAL;
1359
1360         ac = (ireq->i_len & IEEE80211_WMEPARAM_VAL);
1361         if (ac >= WME_NUM_AC)
1362                 ac = WME_AC_BE;
1363         if (ireq->i_len & IEEE80211_WMEPARAM_BSS)
1364                 wmep = &wme->wme_wmeBssChanParams.cap_wmeParams[ac];
1365         else
1366                 wmep = &wme->wme_wmeChanParams.cap_wmeParams[ac];
1367         switch (ireq->i_type) {
1368         case IEEE80211_IOC_WME_CWMIN:           /* WME: CWmin */
1369                 ireq->i_val = wmep->wmep_logcwmin;
1370                 break;
1371         case IEEE80211_IOC_WME_CWMAX:           /* WME: CWmax */
1372                 ireq->i_val = wmep->wmep_logcwmax;
1373                 break;
1374         case IEEE80211_IOC_WME_AIFS:            /* WME: AIFS */
1375                 ireq->i_val = wmep->wmep_aifsn;
1376                 break;
1377         case IEEE80211_IOC_WME_TXOPLIMIT:       /* WME: txops limit */
1378                 ireq->i_val = wmep->wmep_txopLimit;
1379                 break;
1380         case IEEE80211_IOC_WME_ACM:             /* WME: ACM (bss only) */
1381                 wmep = &wme->wme_wmeBssChanParams.cap_wmeParams[ac];
1382                 ireq->i_val = wmep->wmep_acm;
1383                 break;
1384         case IEEE80211_IOC_WME_ACKPOLICY:       /* WME: ACK policy (!bss only)*/
1385                 wmep = &wme->wme_wmeChanParams.cap_wmeParams[ac];
1386                 ireq->i_val = !wmep->wmep_noackPolicy;
1387                 break;
1388         }
1389         return 0;
1390 }
1391
1392 static int
1393 ieee80211_ioctl_getmaccmd(struct ieee80211com *ic, struct ieee80211req *ireq)
1394 {
1395         const struct ieee80211_aclator *acl = ic->ic_acl;
1396
1397         return (acl == NULL ? EINVAL : acl->iac_getioctl(ic, ireq));
1398 }
1399
1400 /*
1401  * When building the kernel with -O2 on the i386 architecture, gcc
1402  * seems to want to inline this function into ieee80211_ioctl()
1403  * (which is the only routine that calls it). When this happens,
1404  * ieee80211_ioctl() ends up consuming an additional 2K of stack
1405  * space. (Exactly why it needs so much is unclear.) The problem
1406  * is that it's possible for ieee80211_ioctl() to invoke other
1407  * routines (including driver init functions) which could then find
1408  * themselves perilously close to exhausting the stack.
1409  *
1410  * To avoid this, we deliberately prevent gcc from inlining this
1411  * routine. Another way to avoid this is to use less agressive
1412  * optimization when compiling this file (i.e. -O instead of -O2)
1413  * but special-casing the compilation of this one module in the
1414  * build system would be awkward.
1415  */
1416 #ifdef __GNUC__
1417 __attribute__ ((noinline))
1418 #endif
1419 static int
1420 ieee80211_ioctl_get80211(struct ieee80211com *ic, u_long cmd, struct ieee80211req *ireq)
1421 {
1422         const struct ieee80211_rsnparms *rsn = &ic->ic_bss->ni_rsn;
1423         int error = 0;
1424         u_int kid, len, m;
1425         u_int8_t tmpkey[IEEE80211_KEYBUF_SIZE];
1426         char tmpssid[IEEE80211_NWID_LEN];
1427
1428         switch (ireq->i_type) {
1429         case IEEE80211_IOC_SSID:
1430                 switch (ic->ic_state) {
1431                 case IEEE80211_S_INIT:
1432                 case IEEE80211_S_SCAN:
1433                         ireq->i_len = ic->ic_des_esslen;
1434                         memcpy(tmpssid, ic->ic_des_essid, ireq->i_len);
1435                         break;
1436                 default:
1437                         ireq->i_len = ic->ic_bss->ni_esslen;
1438                         memcpy(tmpssid, ic->ic_bss->ni_essid,
1439                                 ireq->i_len);
1440                         break;
1441                 }
1442                 error = copyout(tmpssid, ireq->i_data, ireq->i_len);
1443                 break;
1444         case IEEE80211_IOC_NUMSSIDS:
1445                 ireq->i_val = 1;
1446                 break;
1447         case IEEE80211_IOC_WEP:
1448                 if ((ic->ic_flags & IEEE80211_F_PRIVACY) == 0)
1449                         ireq->i_val = IEEE80211_WEP_OFF;
1450                 else if (ic->ic_flags & IEEE80211_F_DROPUNENC)
1451                         ireq->i_val = IEEE80211_WEP_ON;
1452                 else
1453                         ireq->i_val = IEEE80211_WEP_MIXED;
1454                 break;
1455         case IEEE80211_IOC_WEPKEY:
1456                 kid = (u_int) ireq->i_val;
1457                 if (kid >= IEEE80211_WEP_NKID)
1458                         return EINVAL;
1459                 len = (u_int) ic->ic_nw_keys[kid].wk_keylen;
1460                 /* NB: only root can read WEP keys */
1461                 if (suser(curthread) == 0) {
1462                         bcopy(ic->ic_nw_keys[kid].wk_key, tmpkey, len);
1463                 } else {
1464                         bzero(tmpkey, len);
1465                 }
1466                 ireq->i_len = len;
1467                 error = copyout(tmpkey, ireq->i_data, len);
1468                 break;
1469         case IEEE80211_IOC_NUMWEPKEYS:
1470                 ireq->i_val = IEEE80211_WEP_NKID;
1471                 break;
1472         case IEEE80211_IOC_WEPTXKEY:
1473                 ireq->i_val = ic->ic_def_txkey;
1474                 break;
1475         case IEEE80211_IOC_AUTHMODE:
1476                 if (ic->ic_flags & IEEE80211_F_WPA)
1477                         ireq->i_val = IEEE80211_AUTH_WPA;
1478                 else
1479                         ireq->i_val = ic->ic_bss->ni_authmode;
1480                 break;
1481         case IEEE80211_IOC_CHANNEL:
1482                 ireq->i_val = ieee80211_chan2ieee(ic, ic->ic_curchan);
1483                 break;
1484         case IEEE80211_IOC_POWERSAVE:
1485                 if (ic->ic_flags & IEEE80211_F_PMGTON)
1486                         ireq->i_val = IEEE80211_POWERSAVE_ON;
1487                 else
1488                         ireq->i_val = IEEE80211_POWERSAVE_OFF;
1489                 break;
1490         case IEEE80211_IOC_POWERSAVESLEEP:
1491                 ireq->i_val = ic->ic_lintval;
1492                 break;
1493         case IEEE80211_IOC_RTSTHRESHOLD:
1494                 ireq->i_val = ic->ic_rtsthreshold;
1495                 break;
1496         case IEEE80211_IOC_PROTMODE:
1497                 ireq->i_val = ic->ic_protmode;
1498                 break;
1499         case IEEE80211_IOC_TXPOWER:
1500                 if ((ic->ic_caps & IEEE80211_C_TXPMGT) == 0)
1501                         return EINVAL;
1502                 ireq->i_val = ic->ic_txpowlimit;
1503                 break;
1504         case IEEE80211_IOC_MCASTCIPHER:
1505                 ireq->i_val = rsn->rsn_mcastcipher;
1506                 break;
1507         case IEEE80211_IOC_MCASTKEYLEN:
1508                 ireq->i_val = rsn->rsn_mcastkeylen;
1509                 break;
1510         case IEEE80211_IOC_UCASTCIPHERS:
1511                 ireq->i_val = 0;
1512                 for (m = 0x1; m != 0; m <<= 1)
1513                         if (rsn->rsn_ucastcipherset & m)
1514                                 ireq->i_val |= 1<<cap2cipher(m);
1515                 break;
1516         case IEEE80211_IOC_UCASTCIPHER:
1517                 ireq->i_val = rsn->rsn_ucastcipher;
1518                 break;
1519         case IEEE80211_IOC_UCASTKEYLEN:
1520                 ireq->i_val = rsn->rsn_ucastkeylen;
1521                 break;
1522         case IEEE80211_IOC_KEYMGTALGS:
1523                 ireq->i_val = rsn->rsn_keymgmtset;
1524                 break;
1525         case IEEE80211_IOC_RSNCAPS:
1526                 ireq->i_val = rsn->rsn_caps;
1527                 break;
1528         case IEEE80211_IOC_WPA:
1529                 switch (ic->ic_flags & IEEE80211_F_WPA) {
1530                 case IEEE80211_F_WPA1:
1531                         ireq->i_val = 1;
1532                         break;
1533                 case IEEE80211_F_WPA2:
1534                         ireq->i_val = 2;
1535                         break;
1536                 case IEEE80211_F_WPA1 | IEEE80211_F_WPA2:
1537                         ireq->i_val = 3;
1538                         break;
1539                 default:
1540                         ireq->i_val = 0;
1541                         break;
1542                 }
1543                 break;
1544         case IEEE80211_IOC_CHANLIST:
1545                 error = ieee80211_ioctl_getchanlist(ic, ireq);
1546                 break;
1547         case IEEE80211_IOC_ROAMING:
1548                 ireq->i_val = ic->ic_roaming;
1549                 break;
1550         case IEEE80211_IOC_PRIVACY:
1551                 ireq->i_val = (ic->ic_flags & IEEE80211_F_PRIVACY) != 0;
1552                 break;
1553         case IEEE80211_IOC_DROPUNENCRYPTED:
1554                 ireq->i_val = (ic->ic_flags & IEEE80211_F_DROPUNENC) != 0;
1555                 break;
1556         case IEEE80211_IOC_COUNTERMEASURES:
1557                 ireq->i_val = (ic->ic_flags & IEEE80211_F_COUNTERM) != 0;
1558                 break;
1559         case IEEE80211_IOC_DRIVER_CAPS:
1560                 ireq->i_val = ic->ic_caps>>16;
1561                 ireq->i_len = ic->ic_caps&0xffff;
1562                 break;
1563         case IEEE80211_IOC_WME:
1564                 ireq->i_val = (ic->ic_flags & IEEE80211_F_WME) != 0;
1565                 break;
1566         case IEEE80211_IOC_HIDESSID:
1567                 ireq->i_val = (ic->ic_flags & IEEE80211_F_HIDESSID) != 0;
1568                 break;
1569         case IEEE80211_IOC_APBRIDGE:
1570                 ireq->i_val = (ic->ic_flags & IEEE80211_F_NOBRIDGE) == 0;
1571                 break;
1572         case IEEE80211_IOC_OPTIE:
1573                 if (ic->ic_opt_ie == NULL)
1574                         return EINVAL;
1575                 /* NB: truncate, caller can check length */
1576                 if (ireq->i_len > ic->ic_opt_ie_len)
1577                         ireq->i_len = ic->ic_opt_ie_len;
1578                 error = copyout(ic->ic_opt_ie, ireq->i_data, ireq->i_len);
1579                 break;
1580         case IEEE80211_IOC_WPAKEY:
1581                 error = ieee80211_ioctl_getkey(ic, ireq);
1582                 break;
1583         case IEEE80211_IOC_CHANINFO:
1584                 error = ieee80211_ioctl_getchaninfo(ic, ireq);
1585                 break;
1586         case IEEE80211_IOC_BSSID:
1587                 if (ireq->i_len != IEEE80211_ADDR_LEN)
1588                         return EINVAL;
1589                 error = copyout(ic->ic_state == IEEE80211_S_RUN ?
1590                                         ic->ic_bss->ni_bssid :
1591                                         ic->ic_des_bssid,
1592                                 ireq->i_data, ireq->i_len);
1593                 break;
1594         case IEEE80211_IOC_WPAIE:
1595                 error = ieee80211_ioctl_getwpaie(ic, ireq);
1596                 break;
1597 #ifdef COMPAT_FREEBSD6
1598         case IEEE80211_IOC_SCAN_RESULTS_OLD:
1599                 error = old_getscanresults(ic, ireq);
1600                 break;
1601 #endif
1602         case IEEE80211_IOC_SCAN_RESULTS:
1603                 error = ieee80211_ioctl_getscanresults(ic, ireq);
1604                 break;
1605         case IEEE80211_IOC_STA_STATS:
1606                 error = ieee80211_ioctl_getstastats(ic, ireq);
1607                 break;
1608         case IEEE80211_IOC_TXPOWMAX:
1609                 ireq->i_val = ic->ic_bss->ni_txpower;
1610                 break;
1611         case IEEE80211_IOC_STA_TXPOW:
1612                 error = ieee80211_ioctl_getstatxpow(ic, ireq);
1613                 break;
1614         case IEEE80211_IOC_STA_INFO:
1615                 error = ieee80211_ioctl_getstainfo(ic, ireq);
1616                 break;
1617         case IEEE80211_IOC_WME_CWMIN:           /* WME: CWmin */
1618         case IEEE80211_IOC_WME_CWMAX:           /* WME: CWmax */
1619         case IEEE80211_IOC_WME_AIFS:            /* WME: AIFS */
1620         case IEEE80211_IOC_WME_TXOPLIMIT:       /* WME: txops limit */
1621         case IEEE80211_IOC_WME_ACM:             /* WME: ACM (bss only) */
1622         case IEEE80211_IOC_WME_ACKPOLICY:       /* WME: ACK policy (bss only) */
1623                 error = ieee80211_ioctl_getwmeparam(ic, ireq);
1624                 break;
1625         case IEEE80211_IOC_DTIM_PERIOD:
1626                 ireq->i_val = ic->ic_dtim_period;
1627                 break;
1628         case IEEE80211_IOC_BEACON_INTERVAL:
1629                 /* NB: get from ic_bss for station mode */
1630                 ireq->i_val = ic->ic_bss->ni_intval;
1631                 break;
1632         case IEEE80211_IOC_PUREG:
1633                 ireq->i_val = (ic->ic_flags & IEEE80211_F_PUREG) != 0;
1634                 break;
1635         case IEEE80211_IOC_MCAST_RATE:
1636                 ireq->i_val = ic->ic_mcast_rate;
1637                 break;
1638         case IEEE80211_IOC_FRAGTHRESHOLD:
1639                 ireq->i_val = ic->ic_fragthreshold;
1640                 break;
1641         case IEEE80211_IOC_MACCMD:
1642                 error = ieee80211_ioctl_getmaccmd(ic, ireq);
1643                 break;
1644         case IEEE80211_IOC_BURST:
1645                 ireq->i_val = (ic->ic_flags & IEEE80211_F_BURST) != 0;
1646                 break;
1647         default:
1648                 error = EINVAL;
1649                 break;
1650         }
1651         return error;
1652 }
1653
1654 static int
1655 ieee80211_ioctl_setoptie(struct ieee80211com *ic, struct ieee80211req *ireq)
1656 {
1657         int error;
1658         void *ie, *oie;
1659
1660         /*
1661          * NB: Doing this for ap operation could be useful (e.g. for
1662          *     WPA and/or WME) except that it typically is worthless
1663          *     without being able to intervene when processing
1664          *     association response frames--so disallow it for now.
1665          */
1666         if (ic->ic_opmode != IEEE80211_M_STA)
1667                 return EINVAL;
1668         if (ireq->i_len > IEEE80211_MAX_OPT_IE)
1669                 return EINVAL;
1670         if (ireq->i_len > 0) {
1671                 MALLOC(ie, void *, ireq->i_len, M_DEVBUF, M_NOWAIT);
1672                 if (ie == NULL)
1673                         return ENOMEM;
1674                 error = copyin(ireq->i_data, ie, ireq->i_len);
1675                 if (error) {
1676                         FREE(ie, M_DEVBUF);
1677                         return error;
1678                 }
1679         } else {
1680                 ie = NULL;
1681                 ireq->i_len = 0;
1682         }
1683         /* XXX sanity check data? */
1684         oie = ic->ic_opt_ie;
1685         ic->ic_opt_ie = ie;
1686         ic->ic_opt_ie_len = ireq->i_len;
1687         if (oie != NULL)
1688                 FREE(oie, M_DEVBUF);
1689         return 0;
1690 }
1691
1692 static int
1693 ieee80211_ioctl_setkey(struct ieee80211com *ic, struct ieee80211req *ireq)
1694 {
1695         struct ieee80211req_key ik;
1696         struct ieee80211_node *ni;
1697         struct ieee80211_key *wk;
1698         u_int16_t kid;
1699         int error;
1700
1701         if (ireq->i_len != sizeof(ik))
1702                 return EINVAL;
1703         error = copyin(ireq->i_data, &ik, sizeof(ik));
1704         if (error)
1705                 return error;
1706         /* NB: cipher support is verified by ieee80211_crypt_newkey */
1707         /* NB: this also checks ik->ik_keylen > sizeof(wk->wk_key) */
1708         if (ik.ik_keylen > sizeof(ik.ik_keydata))
1709                 return E2BIG;
1710         kid = ik.ik_keyix;
1711         if (kid == IEEE80211_KEYIX_NONE) {
1712                 /* XXX unicast keys currently must be tx/rx */
1713                 if (ik.ik_flags != (IEEE80211_KEY_XMIT | IEEE80211_KEY_RECV))
1714                         return EINVAL;
1715                 if (ic->ic_opmode == IEEE80211_M_STA) {
1716                         ni = ieee80211_ref_node(ic->ic_bss);
1717                         if (!IEEE80211_ADDR_EQ(ik.ik_macaddr, ni->ni_bssid)) {
1718                                 ieee80211_free_node(ni);
1719                                 return EADDRNOTAVAIL;
1720                         }
1721                 } else {
1722                         ni = ieee80211_find_node(&ic->ic_sta, ik.ik_macaddr);
1723                         if (ni == NULL)
1724                                 return ENOENT;
1725                 }
1726                 wk = &ni->ni_ucastkey;
1727         } else {
1728                 if (kid >= IEEE80211_WEP_NKID)
1729                         return EINVAL;
1730                 wk = &ic->ic_nw_keys[kid];
1731                 /*
1732                  * Global slots start off w/o any assigned key index.
1733                  * Force one here for consistency with IEEE80211_IOC_WEPKEY.
1734                  */
1735                 if (wk->wk_keyix == IEEE80211_KEYIX_NONE)
1736                         wk->wk_keyix = kid;
1737                 ni = NULL;
1738         }
1739         error = 0;
1740         ieee80211_key_update_begin(ic);
1741         if (ieee80211_crypto_newkey(ic, ik.ik_type, ik.ik_flags, wk)) {
1742                 wk->wk_keylen = ik.ik_keylen;
1743                 /* NB: MIC presence is implied by cipher type */
1744                 if (wk->wk_keylen > IEEE80211_KEYBUF_SIZE)
1745                         wk->wk_keylen = IEEE80211_KEYBUF_SIZE;
1746                 wk->wk_keyrsc = ik.ik_keyrsc;
1747                 wk->wk_keytsc = 0;                      /* new key, reset */
1748                 memset(wk->wk_key, 0, sizeof(wk->wk_key));
1749                 memcpy(wk->wk_key, ik.ik_keydata, ik.ik_keylen);
1750                 if (!ieee80211_crypto_setkey(ic, wk,
1751                     ni != NULL ? ni->ni_macaddr : ik.ik_macaddr))
1752                         error = EIO;
1753                 else if ((ik.ik_flags & IEEE80211_KEY_DEFAULT))
1754                         ic->ic_def_txkey = kid;
1755         } else
1756                 error = ENXIO;
1757         ieee80211_key_update_end(ic);
1758         if (ni != NULL)
1759                 ieee80211_free_node(ni);
1760         return error;
1761 }
1762
1763 static int
1764 ieee80211_ioctl_delkey(struct ieee80211com *ic, struct ieee80211req *ireq)
1765 {
1766         struct ieee80211req_del_key dk;
1767         int kid, error;
1768
1769         if (ireq->i_len != sizeof(dk))
1770                 return EINVAL;
1771         error = copyin(ireq->i_data, &dk, sizeof(dk));
1772         if (error)
1773                 return error;
1774         kid = dk.idk_keyix;
1775         /* XXX u_int8_t -> u_int16_t */
1776         if (dk.idk_keyix == (u_int8_t) IEEE80211_KEYIX_NONE) {
1777                 struct ieee80211_node *ni;
1778
1779                 if (ic->ic_opmode == IEEE80211_M_STA) {
1780                         ni = ieee80211_ref_node(ic->ic_bss);
1781                         if (!IEEE80211_ADDR_EQ(dk.idk_macaddr, ni->ni_bssid)) {
1782                                 ieee80211_free_node(ni);
1783                                 return EADDRNOTAVAIL;
1784                         }
1785                 } else {
1786                         ni = ieee80211_find_node(&ic->ic_sta, dk.idk_macaddr);
1787                         if (ni == NULL)
1788                                 return ENOENT;
1789                 }
1790                 /* XXX error return */
1791                 ieee80211_node_delucastkey(ni);
1792                 ieee80211_free_node(ni);
1793         } else {
1794                 if (kid >= IEEE80211_WEP_NKID)
1795                         return EINVAL;
1796                 /* XXX error return */
1797                 ieee80211_crypto_delkey(ic, &ic->ic_nw_keys[kid]);
1798         }
1799         return 0;
1800 }
1801
1802 static void
1803 domlme(void *arg, struct ieee80211_node *ni)
1804 {
1805         struct ieee80211com *ic = ni->ni_ic;
1806         struct ieee80211req_mlme *mlme = arg;
1807
1808         if (ni->ni_associd != 0) {
1809                 IEEE80211_SEND_MGMT(ic, ni,
1810                         mlme->im_op == IEEE80211_MLME_DEAUTH ?
1811                                 IEEE80211_FC0_SUBTYPE_DEAUTH :
1812                                 IEEE80211_FC0_SUBTYPE_DISASSOC,
1813                         mlme->im_reason);
1814         }
1815         ieee80211_node_leave(ic, ni);
1816 }
1817
1818 static int
1819 ieee80211_ioctl_setmlme(struct ieee80211com *ic, struct ieee80211req *ireq)
1820 {
1821         struct ieee80211req_mlme mlme;
1822         struct ieee80211_node *ni;
1823         int error;
1824
1825         if (ireq->i_len != sizeof(mlme))
1826                 return EINVAL;
1827         error = copyin(ireq->i_data, &mlme, sizeof(mlme));
1828         if (error)
1829                 return error;
1830         switch (mlme.im_op) {
1831         case IEEE80211_MLME_ASSOC:
1832                 if (ic->ic_opmode != IEEE80211_M_STA)
1833                         return EINVAL;
1834                 /* XXX must be in S_SCAN state? */
1835
1836                 if (mlme.im_ssid_len != 0) {
1837                         /*
1838                          * Desired ssid specified; must match both bssid and
1839                          * ssid to distinguish ap advertising multiple ssid's.
1840                          */
1841                         ni = ieee80211_find_node_with_ssid(&ic->ic_scan,
1842                                 mlme.im_macaddr,
1843                                 mlme.im_ssid_len, mlme.im_ssid);
1844                 } else {
1845                         /*
1846                          * Normal case; just match bssid.
1847                          */
1848                         ni = ieee80211_find_node(&ic->ic_scan, mlme.im_macaddr);
1849                 }
1850                 if (ni == NULL)
1851                         return EINVAL;
1852                 if (!ieee80211_sta_join(ic, ni)) {
1853                         ieee80211_free_node(ni);
1854                         return EINVAL;
1855                 }
1856                 break;
1857         case IEEE80211_MLME_DISASSOC:
1858         case IEEE80211_MLME_DEAUTH:
1859                 switch (ic->ic_opmode) {
1860                 case IEEE80211_M_STA:
1861                         /* XXX not quite right */
1862                         ieee80211_new_state(ic, IEEE80211_S_INIT,
1863                                 mlme.im_reason);
1864                         break;
1865                 case IEEE80211_M_HOSTAP:
1866                         /* NB: the broadcast address means do 'em all */
1867                         if (!IEEE80211_ADDR_EQ(mlme.im_macaddr, ic->ic_ifp->if_broadcastaddr)) {
1868                                 if ((ni = ieee80211_find_node(&ic->ic_sta,
1869                                                 mlme.im_macaddr)) == NULL)
1870                                         return EINVAL;
1871                                 domlme(&mlme, ni);
1872                                 ieee80211_free_node(ni);
1873                         } else {
1874                                 ieee80211_iterate_nodes(&ic->ic_sta,
1875                                                 domlme, &mlme);
1876                         }
1877                         break;
1878                 default:
1879                         return EINVAL;
1880                 }
1881                 break;
1882         case IEEE80211_MLME_AUTHORIZE:
1883         case IEEE80211_MLME_UNAUTHORIZE:
1884                 if (ic->ic_opmode != IEEE80211_M_HOSTAP)
1885                         return EINVAL;
1886                 ni = ieee80211_find_node(&ic->ic_sta, mlme.im_macaddr);
1887                 if (ni == NULL)
1888                         return EINVAL;
1889                 if (mlme.im_op == IEEE80211_MLME_AUTHORIZE)
1890                         ieee80211_node_authorize(ni);
1891                 else
1892                         ieee80211_node_unauthorize(ni);
1893                 ieee80211_free_node(ni);
1894                 break;
1895         default:
1896                 return EINVAL;
1897         }
1898         return 0;
1899 }
1900
1901 static int
1902 ieee80211_ioctl_macmac(struct ieee80211com *ic, struct ieee80211req *ireq)
1903 {
1904         u_int8_t mac[IEEE80211_ADDR_LEN];
1905         const struct ieee80211_aclator *acl = ic->ic_acl;
1906         int error;
1907
1908         if (ireq->i_len != sizeof(mac))
1909                 return EINVAL;
1910         error = copyin(ireq->i_data, mac, ireq->i_len);
1911         if (error)
1912                 return error;
1913         if (acl == NULL) {
1914                 acl = ieee80211_aclator_get("mac");
1915                 if (acl == NULL || !acl->iac_attach(ic))
1916                         return EINVAL;
1917                 ic->ic_acl = acl;
1918         }
1919         if (ireq->i_type == IEEE80211_IOC_ADDMAC)
1920                 acl->iac_add(ic, mac);
1921         else
1922                 acl->iac_remove(ic, mac);
1923         return 0;
1924 }
1925
1926 static int
1927 ieee80211_ioctl_setmaccmd(struct ieee80211com *ic, struct ieee80211req *ireq)
1928 {
1929         const struct ieee80211_aclator *acl = ic->ic_acl;
1930
1931         switch (ireq->i_val) {
1932         case IEEE80211_MACCMD_POLICY_OPEN:
1933         case IEEE80211_MACCMD_POLICY_ALLOW:
1934         case IEEE80211_MACCMD_POLICY_DENY:
1935                 if (acl == NULL) {
1936                         acl = ieee80211_aclator_get("mac");
1937                         if (acl == NULL || !acl->iac_attach(ic))
1938                                 return EINVAL;
1939                         ic->ic_acl = acl;
1940                 }
1941                 acl->iac_setpolicy(ic, ireq->i_val);
1942                 break;
1943         case IEEE80211_MACCMD_FLUSH:
1944                 if (acl != NULL)
1945                         acl->iac_flush(ic);
1946                 /* NB: silently ignore when not in use */
1947                 break;
1948         case IEEE80211_MACCMD_DETACH:
1949                 if (acl != NULL) {
1950                         ic->ic_acl = NULL;
1951                         acl->iac_detach(ic);
1952                 }
1953                 break;
1954         default:
1955                 if (acl == NULL)
1956                         return EINVAL;
1957                 else
1958                         return acl->iac_setioctl(ic, ireq);
1959         }
1960         return 0;
1961 }
1962
1963 static int
1964 ieee80211_ioctl_setchanlist(struct ieee80211com *ic, struct ieee80211req *ireq)
1965 {
1966         struct ieee80211req_chanlist list;
1967         u_char chanlist[IEEE80211_CHAN_BYTES];
1968         int i, j, error;
1969
1970         if (ireq->i_len != sizeof(list))
1971                 return EINVAL;
1972         error = copyin(ireq->i_data, &list, sizeof(list));
1973         if (error)
1974                 return error;
1975         memset(chanlist, 0, sizeof(chanlist));
1976         /*
1977          * Since channel 0 is not available for DS, channel 1
1978          * is assigned to LSB on WaveLAN.
1979          */
1980         if (ic->ic_phytype == IEEE80211_T_DS)
1981                 i = 1;
1982         else
1983                 i = 0;
1984         for (j = 0; i <= IEEE80211_CHAN_MAX; i++, j++) {
1985                 /*
1986                  * NB: silently discard unavailable channels so users
1987                  *     can specify 1-255 to get all available channels.
1988                  */
1989                 if (isset(list.ic_channels, j) && isset(ic->ic_chan_avail, i))
1990                         setbit(chanlist, i);
1991         }
1992         if (ic->ic_ibss_chan == NULL ||
1993             isclr(chanlist, ieee80211_chan2ieee(ic, ic->ic_ibss_chan))) {
1994                 for (i = 0; i <= IEEE80211_CHAN_MAX; i++)
1995                         if (isset(chanlist, i)) {
1996                                 ic->ic_ibss_chan = &ic->ic_channels[i];
1997                                 goto found;
1998                         }
1999                 return EINVAL;                  /* no active channels */
2000 found:
2001                 ;
2002         }
2003         memcpy(ic->ic_chan_active, chanlist, sizeof(ic->ic_chan_active));
2004         return IS_UP_AUTO(ic) ? ENETRESET : 0;
2005 }
2006
2007 static int
2008 ieee80211_ioctl_setstatxpow(struct ieee80211com *ic, struct ieee80211req *ireq)
2009 {
2010         struct ieee80211_node *ni;
2011         struct ieee80211req_sta_txpow txpow;
2012         int error;
2013
2014         if (ireq->i_len != sizeof(txpow))
2015                 return EINVAL;
2016         error = copyin(ireq->i_data, &txpow, sizeof(txpow));
2017         if (error != 0)
2018                 return error;
2019         ni = ieee80211_find_node(&ic->ic_sta, txpow.it_macaddr);
2020         if (ni == NULL)
2021                 return EINVAL;          /* XXX */
2022         ni->ni_txpower = txpow.it_txpow;
2023         ieee80211_free_node(ni);
2024         return error;
2025 }
2026
2027 static int
2028 ieee80211_ioctl_setwmeparam(struct ieee80211com *ic, struct ieee80211req *ireq)
2029 {
2030         struct ieee80211_wme_state *wme = &ic->ic_wme;
2031         struct wmeParams *wmep, *chanp;
2032         int isbss, ac;
2033
2034         if ((ic->ic_caps & IEEE80211_C_WME) == 0)
2035                 return EINVAL;
2036
2037         isbss = (ireq->i_len & IEEE80211_WMEPARAM_BSS);
2038         ac = (ireq->i_len & IEEE80211_WMEPARAM_VAL);
2039         if (ac >= WME_NUM_AC)
2040                 ac = WME_AC_BE;
2041         if (isbss) {
2042                 chanp = &wme->wme_bssChanParams.cap_wmeParams[ac];
2043                 wmep = &wme->wme_wmeBssChanParams.cap_wmeParams[ac];
2044         } else {
2045                 chanp = &wme->wme_chanParams.cap_wmeParams[ac];
2046                 wmep = &wme->wme_wmeChanParams.cap_wmeParams[ac];
2047         }
2048         switch (ireq->i_type) {
2049         case IEEE80211_IOC_WME_CWMIN:           /* WME: CWmin */
2050                 if (isbss) {
2051                         wmep->wmep_logcwmin = ireq->i_val;
2052                         if ((wme->wme_flags & WME_F_AGGRMODE) == 0)
2053                                 chanp->wmep_logcwmin = ireq->i_val;
2054                 } else {
2055                         wmep->wmep_logcwmin = chanp->wmep_logcwmin =
2056                                 ireq->i_val;
2057                 }
2058                 break;
2059         case IEEE80211_IOC_WME_CWMAX:           /* WME: CWmax */
2060                 if (isbss) {
2061                         wmep->wmep_logcwmax = ireq->i_val;
2062                         if ((wme->wme_flags & WME_F_AGGRMODE) == 0)
2063                                 chanp->wmep_logcwmax = ireq->i_val;
2064                 } else {
2065                         wmep->wmep_logcwmax = chanp->wmep_logcwmax =
2066                                 ireq->i_val;
2067                 }
2068                 break;
2069         case IEEE80211_IOC_WME_AIFS:            /* WME: AIFS */
2070                 if (isbss) {
2071                         wmep->wmep_aifsn = ireq->i_val;
2072                         if ((wme->wme_flags & WME_F_AGGRMODE) == 0)
2073                                 chanp->wmep_aifsn = ireq->i_val;
2074                 } else {
2075                         wmep->wmep_aifsn = chanp->wmep_aifsn = ireq->i_val;
2076                 }
2077                 break;
2078         case IEEE80211_IOC_WME_TXOPLIMIT:       /* WME: txops limit */
2079                 if (isbss) {
2080                         wmep->wmep_txopLimit = ireq->i_val;
2081                         if ((wme->wme_flags & WME_F_AGGRMODE) == 0)
2082                                 chanp->wmep_txopLimit = ireq->i_val;
2083                 } else {
2084                         wmep->wmep_txopLimit = chanp->wmep_txopLimit =
2085                                 ireq->i_val;
2086                 }
2087                 break;
2088         case IEEE80211_IOC_WME_ACM:             /* WME: ACM (bss only) */
2089                 wmep->wmep_acm = ireq->i_val;
2090                 if ((wme->wme_flags & WME_F_AGGRMODE) == 0)
2091                         chanp->wmep_acm = ireq->i_val;
2092                 break;
2093         case IEEE80211_IOC_WME_ACKPOLICY:       /* WME: ACK policy (!bss only)*/
2094                 wmep->wmep_noackPolicy = chanp->wmep_noackPolicy =
2095                         (ireq->i_val) == 0;
2096                 break;
2097         }
2098         ieee80211_wme_updateparams(ic);
2099         return 0;
2100 }
2101
2102 static int
2103 cipher2cap(int cipher)
2104 {
2105         switch (cipher) {
2106         case IEEE80211_CIPHER_WEP:      return IEEE80211_C_WEP;
2107         case IEEE80211_CIPHER_AES_OCB:  return IEEE80211_C_AES;
2108         case IEEE80211_CIPHER_AES_CCM:  return IEEE80211_C_AES_CCM;
2109         case IEEE80211_CIPHER_CKIP:     return IEEE80211_C_CKIP;
2110         case IEEE80211_CIPHER_TKIP:     return IEEE80211_C_TKIP;
2111         }
2112         return 0;
2113 }
2114
2115 static int
2116 ieee80211_ioctl_set80211(struct ieee80211com *ic, u_long cmd, struct ieee80211req *ireq)
2117 {
2118         static const u_int8_t zerobssid[IEEE80211_ADDR_LEN];
2119         struct ieee80211_rsnparms *rsn = &ic->ic_bss->ni_rsn;
2120         int error;
2121         const struct ieee80211_authenticator *auth;
2122         u_int8_t tmpkey[IEEE80211_KEYBUF_SIZE];
2123         char tmpssid[IEEE80211_NWID_LEN];
2124         u_int8_t tmpbssid[IEEE80211_ADDR_LEN];
2125         struct ieee80211_key *k;
2126         int j, caps;
2127         u_int kid;
2128
2129         error = 0;
2130         switch (ireq->i_type) {
2131         case IEEE80211_IOC_SSID:
2132                 if (ireq->i_val != 0 ||
2133                     ireq->i_len > IEEE80211_NWID_LEN)
2134                         return EINVAL;
2135                 error = copyin(ireq->i_data, tmpssid, ireq->i_len);
2136                 if (error)
2137                         break;
2138                 memset(ic->ic_des_essid, 0, IEEE80211_NWID_LEN);
2139                 ic->ic_des_esslen = ireq->i_len;
2140                 memcpy(ic->ic_des_essid, tmpssid, ireq->i_len);
2141                 error = ENETRESET;
2142                 break;
2143         case IEEE80211_IOC_WEP:
2144                 switch (ireq->i_val) {
2145                 case IEEE80211_WEP_OFF:
2146                         ic->ic_flags &= ~IEEE80211_F_PRIVACY;
2147                         ic->ic_flags &= ~IEEE80211_F_DROPUNENC;
2148                         break;
2149                 case IEEE80211_WEP_ON:
2150                         ic->ic_flags |= IEEE80211_F_PRIVACY;
2151                         ic->ic_flags |= IEEE80211_F_DROPUNENC;
2152                         break;
2153                 case IEEE80211_WEP_MIXED:
2154                         ic->ic_flags |= IEEE80211_F_PRIVACY;
2155                         ic->ic_flags &= ~IEEE80211_F_DROPUNENC;
2156                         break;
2157                 }
2158                 error = ENETRESET;
2159                 break;
2160         case IEEE80211_IOC_WEPKEY:
2161                 kid = (u_int) ireq->i_val;
2162                 if (kid >= IEEE80211_WEP_NKID)
2163                         return EINVAL;
2164                 k = &ic->ic_nw_keys[kid];
2165                 if (ireq->i_len == 0) {
2166                         /* zero-len =>'s delete any existing key */
2167                         (void) ieee80211_crypto_delkey(ic, k);
2168                         break;
2169                 }
2170                 if (ireq->i_len > sizeof(tmpkey))
2171                         return EINVAL;
2172                 memset(tmpkey, 0, sizeof(tmpkey));
2173                 error = copyin(ireq->i_data, tmpkey, ireq->i_len);
2174                 if (error)
2175                         break;
2176                 ieee80211_key_update_begin(ic);
2177                 k->wk_keyix = kid;      /* NB: force fixed key id */
2178                 if (ieee80211_crypto_newkey(ic, IEEE80211_CIPHER_WEP,
2179                     IEEE80211_KEY_XMIT | IEEE80211_KEY_RECV, k)) {
2180                         k->wk_keylen = ireq->i_len;
2181                         memcpy(k->wk_key, tmpkey, sizeof(tmpkey));
2182                         if  (!ieee80211_crypto_setkey(ic, k, ic->ic_myaddr))
2183                                 error = EINVAL;
2184                 } else
2185                         error = EINVAL;
2186                 ieee80211_key_update_end(ic);
2187                 if (!error)                     /* NB: for compatibility */
2188                         error = ENETRESET;
2189                 break;
2190         case IEEE80211_IOC_WEPTXKEY:
2191                 kid = (u_int) ireq->i_val;
2192                 if (kid >= IEEE80211_WEP_NKID &&
2193                     (u_int16_t) kid != IEEE80211_KEYIX_NONE)
2194                         return EINVAL;
2195                 ic->ic_def_txkey = kid;
2196                 error = ENETRESET;      /* push to hardware */
2197                 break;
2198         case IEEE80211_IOC_AUTHMODE:
2199                 switch (ireq->i_val) {
2200                 case IEEE80211_AUTH_WPA:
2201                 case IEEE80211_AUTH_8021X:      /* 802.1x */
2202                 case IEEE80211_AUTH_OPEN:       /* open */
2203                 case IEEE80211_AUTH_SHARED:     /* shared-key */
2204                 case IEEE80211_AUTH_AUTO:       /* auto */
2205                         auth = ieee80211_authenticator_get(ireq->i_val);
2206                         if (auth == NULL)
2207                                 return EINVAL;
2208                         break;
2209                 default:
2210                         return EINVAL;
2211                 }
2212                 switch (ireq->i_val) {
2213                 case IEEE80211_AUTH_WPA:        /* WPA w/ 802.1x */
2214                         ic->ic_flags |= IEEE80211_F_PRIVACY;
2215                         ireq->i_val = IEEE80211_AUTH_8021X;
2216                         break;
2217                 case IEEE80211_AUTH_OPEN:       /* open */
2218                         ic->ic_flags &= ~(IEEE80211_F_WPA|IEEE80211_F_PRIVACY);
2219                         break;
2220                 case IEEE80211_AUTH_SHARED:     /* shared-key */
2221                 case IEEE80211_AUTH_8021X:      /* 802.1x */
2222                         ic->ic_flags &= ~IEEE80211_F_WPA;
2223                         /* both require a key so mark the PRIVACY capability */
2224                         ic->ic_flags |= IEEE80211_F_PRIVACY;
2225                         break;
2226                 case IEEE80211_AUTH_AUTO:       /* auto */
2227                         ic->ic_flags &= ~IEEE80211_F_WPA;
2228                         /* XXX PRIVACY handling? */
2229                         /* XXX what's the right way to do this? */
2230                         break;
2231                 }
2232                 /* NB: authenticator attach/detach happens on state change */
2233                 ic->ic_bss->ni_authmode = ireq->i_val;
2234                 /* XXX mixed/mode/usage? */
2235                 ic->ic_auth = auth;
2236                 error = ENETRESET;
2237                 break;
2238         case IEEE80211_IOC_CHANNEL:
2239                 /* XXX 0xffff overflows 16-bit signed */
2240                 if (ireq->i_val == 0 ||
2241                     ireq->i_val == (int16_t) IEEE80211_CHAN_ANY)
2242                         ic->ic_des_chan = IEEE80211_CHAN_ANYC;
2243                 else if ((u_int) ireq->i_val > IEEE80211_CHAN_MAX ||
2244                     isclr(ic->ic_chan_active, ireq->i_val)) {
2245                         return EINVAL;
2246                 } else
2247                         ic->ic_ibss_chan = ic->ic_des_chan =
2248                                 &ic->ic_channels[ireq->i_val];
2249                 switch (ic->ic_state) {
2250                 case IEEE80211_S_INIT:
2251                 case IEEE80211_S_SCAN:
2252                         error = ENETRESET;
2253                         break;
2254                 default:
2255                         /*
2256                          * If the desired channel has changed (to something
2257                          * other than any) and we're not already scanning,
2258                          * then kick the state machine.
2259                          */
2260                         if (ic->ic_des_chan != IEEE80211_CHAN_ANYC &&
2261                             ic->ic_bss->ni_chan != ic->ic_des_chan &&
2262                             (ic->ic_flags & IEEE80211_F_SCAN) == 0)
2263                                 error = ENETRESET;
2264                         break;
2265                 }
2266                 if (error == ENETRESET &&
2267                         ic->ic_opmode == IEEE80211_M_MONITOR) {
2268                         if (IS_UP(ic)) {
2269                                 /*
2270                                  * Monitor mode can switch directly.
2271                                  */
2272                                 if (ic->ic_des_chan != IEEE80211_CHAN_ANYC)
2273                                         ic->ic_curchan = ic->ic_des_chan;
2274                                 error = ic->ic_reset(ic->ic_ifp);
2275                         } else
2276                                 error = 0;
2277                 }
2278                 break;
2279         case IEEE80211_IOC_POWERSAVE:
2280                 switch (ireq->i_val) {
2281                 case IEEE80211_POWERSAVE_OFF:
2282                         if (ic->ic_flags & IEEE80211_F_PMGTON) {
2283                                 ic->ic_flags &= ~IEEE80211_F_PMGTON;
2284                                 error = ENETRESET;
2285                         }
2286                         break;
2287                 case IEEE80211_POWERSAVE_ON:
2288                         if ((ic->ic_caps & IEEE80211_C_PMGT) == 0)
2289                                 error = EINVAL;
2290                         else if ((ic->ic_flags & IEEE80211_F_PMGTON) == 0) {
2291                                 ic->ic_flags |= IEEE80211_F_PMGTON;
2292                                 error = ENETRESET;
2293                         }
2294                         break;
2295                 default:
2296                         error = EINVAL;
2297                         break;
2298                 }
2299                 break;
2300         case IEEE80211_IOC_POWERSAVESLEEP:
2301                 if (ireq->i_val < 0)
2302                         return EINVAL;
2303                 ic->ic_lintval = ireq->i_val;
2304                 error = IS_UP(ic) ? ic->ic_reset(ic->ic_ifp) : 0;
2305                 break;
2306         case IEEE80211_IOC_RTSTHRESHOLD:
2307                 if (!(IEEE80211_RTS_MIN <= ireq->i_val &&
2308                       ireq->i_val <= IEEE80211_RTS_MAX))
2309                         return EINVAL;
2310                 ic->ic_rtsthreshold = ireq->i_val;
2311                 error = IS_UP(ic) ? ic->ic_reset(ic->ic_ifp) : 0;
2312                 break;
2313         case IEEE80211_IOC_PROTMODE:
2314                 if (ireq->i_val > IEEE80211_PROT_RTSCTS)
2315                         return EINVAL;
2316                 ic->ic_protmode = ireq->i_val;
2317                 /* NB: if not operating in 11g this can wait */
2318                 if (ic->ic_curmode == IEEE80211_MODE_11G)
2319                         error = IS_UP(ic) ? ic->ic_reset(ic->ic_ifp) : 0;
2320                 break;
2321         case IEEE80211_IOC_TXPOWER:
2322                 if ((ic->ic_caps & IEEE80211_C_TXPMGT) == 0)
2323                         return EINVAL;
2324                 if (!(IEEE80211_TXPOWER_MIN < ireq->i_val &&
2325                       ireq->i_val < IEEE80211_TXPOWER_MAX))
2326                         return EINVAL;
2327                 ic->ic_txpowlimit = ireq->i_val;
2328                 error = IS_UP(ic) ? ic->ic_reset(ic->ic_ifp) : 0;
2329                 break;
2330         case IEEE80211_IOC_ROAMING:
2331                 if (!(IEEE80211_ROAMING_DEVICE <= ireq->i_val &&
2332                     ireq->i_val <= IEEE80211_ROAMING_MANUAL))
2333                         return EINVAL;
2334                 ic->ic_roaming = ireq->i_val;
2335                 /* XXXX reset? */
2336                 break;
2337         case IEEE80211_IOC_PRIVACY:
2338                 if (ireq->i_val) {
2339                         /* XXX check for key state? */
2340                         ic->ic_flags |= IEEE80211_F_PRIVACY;
2341                 } else
2342                         ic->ic_flags &= ~IEEE80211_F_PRIVACY;
2343                 break;
2344         case IEEE80211_IOC_DROPUNENCRYPTED:
2345                 if (ireq->i_val)
2346                         ic->ic_flags |= IEEE80211_F_DROPUNENC;
2347                 else
2348                         ic->ic_flags &= ~IEEE80211_F_DROPUNENC;
2349                 break;
2350         case IEEE80211_IOC_WPAKEY:
2351                 error = ieee80211_ioctl_setkey(ic, ireq);
2352                 break;
2353         case IEEE80211_IOC_DELKEY:
2354                 error = ieee80211_ioctl_delkey(ic, ireq);
2355                 break;
2356         case IEEE80211_IOC_MLME:
2357                 error = ieee80211_ioctl_setmlme(ic, ireq);
2358                 break;
2359         case IEEE80211_IOC_OPTIE:
2360                 error = ieee80211_ioctl_setoptie(ic, ireq);
2361                 break;
2362         case IEEE80211_IOC_COUNTERMEASURES:
2363                 if (ireq->i_val) {
2364                         if ((ic->ic_flags & IEEE80211_F_WPA) == 0)
2365                                 return EINVAL;
2366                         ic->ic_flags |= IEEE80211_F_COUNTERM;
2367                 } else
2368                         ic->ic_flags &= ~IEEE80211_F_COUNTERM;
2369                 break;
2370         case IEEE80211_IOC_WPA:
2371                 if (ireq->i_val > 3)
2372                         return EINVAL;
2373                 /* XXX verify ciphers available */
2374                 ic->ic_flags &= ~IEEE80211_F_WPA;
2375                 switch (ireq->i_val) {
2376                 case 1:
2377                         ic->ic_flags |= IEEE80211_F_WPA1;
2378                         break;
2379                 case 2:
2380                         ic->ic_flags |= IEEE80211_F_WPA2;
2381                         break;
2382                 case 3:
2383                         ic->ic_flags |= IEEE80211_F_WPA1 | IEEE80211_F_WPA2;
2384                         break;
2385                 }
2386                 error = ENETRESET;              /* XXX? */
2387                 break;
2388         case IEEE80211_IOC_WME:
2389                 if (ireq->i_val) {
2390                         if ((ic->ic_caps & IEEE80211_C_WME) == 0)
2391                                 return EINVAL;
2392                         ic->ic_flags |= IEEE80211_F_WME;
2393                 } else
2394                         ic->ic_flags &= ~IEEE80211_F_WME;
2395                 error = ENETRESET;              /* XXX maybe not for station? */
2396                 break;
2397         case IEEE80211_IOC_HIDESSID:
2398                 if (ireq->i_val)
2399                         ic->ic_flags |= IEEE80211_F_HIDESSID;
2400                 else
2401                         ic->ic_flags &= ~IEEE80211_F_HIDESSID;
2402                 error = ENETRESET;
2403                 break;
2404         case IEEE80211_IOC_APBRIDGE:
2405                 if (ireq->i_val == 0)
2406                         ic->ic_flags |= IEEE80211_F_NOBRIDGE;
2407                 else
2408                         ic->ic_flags &= ~IEEE80211_F_NOBRIDGE;
2409                 break;
2410         case IEEE80211_IOC_MCASTCIPHER:
2411                 if ((ic->ic_caps & cipher2cap(ireq->i_val)) == 0 &&
2412                     !ieee80211_crypto_available(ireq->i_val))
2413                         return EINVAL;
2414                 rsn->rsn_mcastcipher = ireq->i_val;
2415                 error = (ic->ic_flags & IEEE80211_F_WPA) ? ENETRESET : 0;
2416                 break;
2417         case IEEE80211_IOC_MCASTKEYLEN:
2418                 if (!(0 < ireq->i_val && ireq->i_val < IEEE80211_KEYBUF_SIZE))
2419                         return EINVAL;
2420                 /* XXX no way to verify driver capability */
2421                 rsn->rsn_mcastkeylen = ireq->i_val;
2422                 error = (ic->ic_flags & IEEE80211_F_WPA) ? ENETRESET : 0;
2423                 break;
2424         case IEEE80211_IOC_UCASTCIPHERS:
2425                 /*
2426                  * Convert user-specified cipher set to the set
2427                  * we can support (via hardware or software).
2428                  * NB: this logic intentionally ignores unknown and
2429                  * unsupported ciphers so folks can specify 0xff or
2430                  * similar and get all available ciphers.
2431                  */
2432                 caps = 0;
2433                 for (j = 1; j < 32; j++)        /* NB: skip WEP */
2434                         if ((ireq->i_val & (1<<j)) &&
2435                             ((ic->ic_caps & cipher2cap(j)) ||
2436                              ieee80211_crypto_available(j)))
2437                                 caps |= 1<<j;
2438                 if (caps == 0)                  /* nothing available */
2439                         return EINVAL;
2440                 /* XXX verify ciphers ok for unicast use? */
2441                 /* XXX disallow if running as it'll have no effect */
2442                 rsn->rsn_ucastcipherset = caps;
2443                 error = (ic->ic_flags & IEEE80211_F_WPA) ? ENETRESET : 0;
2444                 break;
2445         case IEEE80211_IOC_UCASTCIPHER:
2446                 if ((rsn->rsn_ucastcipherset & cipher2cap(ireq->i_val)) == 0)
2447                         return EINVAL;
2448                 rsn->rsn_ucastcipher = ireq->i_val;
2449                 break;
2450         case IEEE80211_IOC_UCASTKEYLEN:
2451                 if (!(0 < ireq->i_val && ireq->i_val < IEEE80211_KEYBUF_SIZE))
2452                         return EINVAL;
2453                 /* XXX no way to verify driver capability */
2454                 rsn->rsn_ucastkeylen = ireq->i_val;
2455                 break;
2456         case IEEE80211_IOC_DRIVER_CAPS:
2457                 /* NB: for testing */
2458                 ic->ic_caps = (((u_int16_t) ireq->i_val) << 16) |
2459                                ((u_int16_t) ireq->i_len);
2460                 break;
2461         case IEEE80211_IOC_KEYMGTALGS:
2462                 /* XXX check */
2463                 rsn->rsn_keymgmtset = ireq->i_val;
2464                 error = (ic->ic_flags & IEEE80211_F_WPA) ? ENETRESET : 0;
2465                 break;
2466         case IEEE80211_IOC_RSNCAPS:
2467                 /* XXX check */
2468                 rsn->rsn_caps = ireq->i_val;
2469                 error = (ic->ic_flags & IEEE80211_F_WPA) ? ENETRESET : 0;
2470                 break;
2471         case IEEE80211_IOC_BSSID:
2472                 if (ireq->i_len != sizeof(tmpbssid))
2473                         return EINVAL;
2474                 error = copyin(ireq->i_data, tmpbssid, ireq->i_len);
2475                 if (error)
2476                         break;
2477                 IEEE80211_ADDR_COPY(ic->ic_des_bssid, tmpbssid);
2478                 if (IEEE80211_ADDR_EQ(ic->ic_des_bssid, zerobssid))
2479                         ic->ic_flags &= ~IEEE80211_F_DESBSSID;
2480                 else
2481                         ic->ic_flags |= IEEE80211_F_DESBSSID;
2482                 error = ENETRESET;
2483                 break;
2484         case IEEE80211_IOC_CHANLIST:
2485                 error = ieee80211_ioctl_setchanlist(ic, ireq);
2486                 break;
2487         case IEEE80211_IOC_SCAN_REQ:
2488                 if (ic->ic_opmode == IEEE80211_M_HOSTAP)        /* XXX ignore */
2489                         break;
2490                 error = ieee80211_setupscan(ic, ic->ic_chan_avail);
2491                 if (error == 0)         /* XXX background scan */
2492                         error = ieee80211_new_state(ic, IEEE80211_S_SCAN, -1);
2493                 break;
2494         case IEEE80211_IOC_ADDMAC:
2495         case IEEE80211_IOC_DELMAC:
2496                 error = ieee80211_ioctl_macmac(ic, ireq);
2497                 break;
2498         case IEEE80211_IOC_MACCMD:
2499                 error = ieee80211_ioctl_setmaccmd(ic, ireq);
2500                 break;
2501         case IEEE80211_IOC_STA_TXPOW:
2502                 error = ieee80211_ioctl_setstatxpow(ic, ireq);
2503                 break;
2504         case IEEE80211_IOC_WME_CWMIN:           /* WME: CWmin */
2505         case IEEE80211_IOC_WME_CWMAX:           /* WME: CWmax */
2506         case IEEE80211_IOC_WME_AIFS:            /* WME: AIFS */
2507         case IEEE80211_IOC_WME_TXOPLIMIT:       /* WME: txops limit */
2508         case IEEE80211_IOC_WME_ACM:             /* WME: ACM (bss only) */
2509         case IEEE80211_IOC_WME_ACKPOLICY:       /* WME: ACK policy (bss only) */
2510                 error = ieee80211_ioctl_setwmeparam(ic, ireq);
2511                 break;
2512         case IEEE80211_IOC_DTIM_PERIOD:
2513                 if (ic->ic_opmode != IEEE80211_M_HOSTAP &&
2514                     ic->ic_opmode != IEEE80211_M_IBSS)
2515                         return EINVAL;
2516                 if (IEEE80211_DTIM_MIN <= ireq->i_val &&
2517                     ireq->i_val <= IEEE80211_DTIM_MAX) {
2518                         ic->ic_dtim_period = ireq->i_val;
2519                         error = ENETRESET;              /* requires restart */
2520                 } else
2521                         error = EINVAL;
2522                 break;
2523         case IEEE80211_IOC_BEACON_INTERVAL:
2524                 if (ic->ic_opmode != IEEE80211_M_HOSTAP &&
2525                     ic->ic_opmode != IEEE80211_M_IBSS)
2526                         return EINVAL;
2527                 if (IEEE80211_BINTVAL_MIN <= ireq->i_val &&
2528                     ireq->i_val <= IEEE80211_BINTVAL_MAX) {
2529                         ic->ic_bintval = ireq->i_val;
2530                         error = ENETRESET;              /* requires restart */
2531                 } else
2532                         error = EINVAL;
2533                 break;
2534         case IEEE80211_IOC_PUREG:
2535                 if (ireq->i_val)
2536                         ic->ic_flags |= IEEE80211_F_PUREG;
2537                 else
2538                         ic->ic_flags &= ~IEEE80211_F_PUREG;
2539                 /* NB: reset only if we're operating on an 11g channel */
2540                 if (ic->ic_curmode == IEEE80211_MODE_11G)
2541                         error = ENETRESET;
2542                 break;
2543         case IEEE80211_IOC_MCAST_RATE:
2544                 ic->ic_mcast_rate = ireq->i_val & IEEE80211_RATE_VAL;
2545                 break;
2546         case IEEE80211_IOC_FRAGTHRESHOLD:
2547                 if ((ic->ic_caps & IEEE80211_C_TXFRAG) == 0 &&
2548                     ireq->i_val != IEEE80211_FRAG_MAX)
2549                         return EINVAL;
2550                 if (!(IEEE80211_FRAG_MIN <= ireq->i_val &&
2551                       ireq->i_val <= IEEE80211_FRAG_MAX))
2552                         return EINVAL;
2553                 ic->ic_fragthreshold = ireq->i_val;
2554                 error = IS_UP(ic) ? ic->ic_reset(ic->ic_ifp) : 0;
2555                 break;
2556         case IEEE80211_IOC_BURST:
2557                 if (ireq->i_val) {
2558                         if ((ic->ic_caps & IEEE80211_C_BURST) == 0)
2559                                 return EINVAL;
2560                         ic->ic_flags |= IEEE80211_F_BURST;
2561                 } else
2562                         ic->ic_flags &= ~IEEE80211_F_BURST;
2563                 error = ENETRESET;              /* XXX maybe not for station? */
2564                 break;
2565         default:
2566                 error = EINVAL;
2567                 break;
2568         }
2569         if (error == ENETRESET && !IS_UP_AUTO(ic))
2570                 error = 0;
2571         return error;
2572 }
2573
2574 int
2575 ieee80211_ioctl(struct ieee80211com *ic, u_long cmd, caddr_t data)
2576 {
2577         struct ifnet *ifp = ic->ic_ifp;
2578         int error = 0;
2579         struct ifreq *ifr;
2580         struct ifaddr *ifa;                     /* XXX */
2581
2582         switch (cmd) {
2583         case SIOCSIFMEDIA:
2584         case SIOCGIFMEDIA:
2585                 error = ifmedia_ioctl(ifp, (struct ifreq *) data,
2586                                 &ic->ic_media, cmd);
2587                 break;
2588         case SIOCG80211:
2589                 error = ieee80211_ioctl_get80211(ic, cmd,
2590                                 (struct ieee80211req *) data);
2591                 break;
2592         case SIOCS80211:
2593                 error = suser(curthread);
2594                 if (error == 0)
2595                         error = ieee80211_ioctl_set80211(ic, cmd,
2596                                         (struct ieee80211req *) data);
2597                 break;
2598         case SIOCGIFGENERIC:
2599                 error = ieee80211_cfgget(ic, cmd, data);
2600                 break;
2601         case SIOCSIFGENERIC:
2602                 error = suser(curthread);
2603                 if (error)
2604                         break;
2605                 error = ieee80211_cfgset(ic, cmd, data);
2606                 break;
2607         case SIOCG80211STATS:
2608                 ifr = (struct ifreq *)data;
2609                 copyout(&ic->ic_stats, ifr->ifr_data, sizeof (ic->ic_stats));
2610                 break;
2611         case SIOCSIFMTU:
2612                 ifr = (struct ifreq *)data;
2613                 if (!(IEEE80211_MTU_MIN <= ifr->ifr_mtu &&
2614                     ifr->ifr_mtu <= IEEE80211_MTU_MAX))
2615                         error = EINVAL;
2616                 else
2617                         ifp->if_mtu = ifr->ifr_mtu;
2618                 break;
2619         case SIOCSIFADDR:
2620                 /*
2621                  * XXX Handle this directly so we can supress if_init calls.
2622                  * XXX This should be done in ether_ioctl but for the moment
2623                  * XXX there are too many other parts of the system that
2624                  * XXX set IFF_UP and so supress if_init being called when
2625                  * XXX it should be.
2626                  */
2627                 ifa = (struct ifaddr *) data;
2628                 switch (ifa->ifa_addr->sa_family) {
2629 #ifdef INET
2630                 case AF_INET:
2631                         if ((ifp->if_flags & IFF_UP) == 0) {
2632                                 ifp->if_flags |= IFF_UP;
2633                                 ifp->if_init(ifp->if_softc);
2634                         }
2635                         arp_ifinit(ifp, ifa);
2636                         break;
2637 #endif
2638 #ifdef IPX
2639                 /*
2640                  * XXX - This code is probably wrong,
2641                  *       but has been copied many times.
2642                  */
2643                 case AF_IPX: {
2644                         struct ipx_addr *ina = &(IA_SIPX(ifa)->sipx_addr);
2645
2646                         if (ipx_nullhost(*ina))
2647                                 ina->x_host = *(union ipx_host *)
2648                                     IF_LLADDR(ifp);
2649                         else
2650                                 bcopy((caddr_t) ina->x_host.c_host,
2651                                       (caddr_t) IF_LLADDR(ifp),
2652                                       ETHER_ADDR_LEN);
2653                         /* fall thru... */
2654                 }
2655 #endif
2656                 default:
2657                         if ((ifp->if_flags & IFF_UP) == 0) {
2658                                 ifp->if_flags |= IFF_UP;
2659                                 ifp->if_init(ifp->if_softc);
2660                         }
2661                         break;
2662                 }
2663                 break;
2664         default:
2665                 error = ether_ioctl(ifp, cmd, data);
2666                 break;
2667         }
2668         return error;
2669 }