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 static void
 975 get_scan_result(struct ieee80211req_scan_result *sr,
 976         const struct ieee80211_node *ni)
 977 {
 978         struct ieee80211com *ic = ni->ni_ic;
 979
 980         memset(sr, 0, sizeof(*sr));
 981         sr->isr_ssid_len = ni->ni_esslen;
 982         if (ni->ni_wpa_ie != NULL)
 983                 sr->isr_ie_len += 2+ni->ni_wpa_ie[1];
 984         if (ni->ni_wme_ie != NULL)
 985                 sr->isr_ie_len += 2+ni->ni_wme_ie[1];
 986         sr->isr_len = sizeof(*sr) + sr->isr_ssid_len + sr->isr_ie_len;
 987         sr->isr_len = roundup(sr->isr_len, sizeof(u_int32_t));
 988         if (ni->ni_chan != IEEE80211_CHAN_ANYC) {
 989                 sr->isr_freq = ni->ni_chan->ic_freq;
 990                 sr->isr_flags = ni->ni_chan->ic_flags;
 991         }
 992         sr->isr_rssi = ic->ic_node_getrssi(ni);
 993         sr->isr_intval = ni->ni_intval;
 994         sr->isr_capinfo = ni->ni_capinfo;
 995         sr->isr_erp = ni->ni_erp;
 996         IEEE80211_ADDR_COPY(sr->isr_bssid, ni->ni_bssid);
 997         sr->isr_nrates = ni->ni_rates.rs_nrates;
 998         if (sr->isr_nrates > 15)
 999                 sr->isr_nrates = 15;
1000         memcpy(sr->isr_rates, ni->ni_rates.rs_rates, sr->isr_nrates);
1001 }
1002
1003 static int
1004 ieee80211_ioctl_getscanresults(struct ieee80211com *ic, struct ieee80211req *ireq)
1005 {
1006         union {
1007                 struct ieee80211req_scan_result res;
1008                 char data[512];         /* XXX shrink? */
1009         } u;
1010         struct ieee80211req_scan_result *sr = &u.res;
1011         struct ieee80211_node_table *nt;
1012         struct ieee80211_node *ni;
1013         int error, space;
1014         u_int8_t *p, *cp;
1015
1016         p = ireq->i_data;
1017         space = ireq->i_len;
1018         error = 0;
1019         /* XXX locking */
1020         nt =  &ic->ic_scan;
1021         TAILQ_FOREACH(ni, &nt->nt_node, ni_list) {
1022                 /* NB: skip pre-scan node state */
1023                 if (ni->ni_chan == IEEE80211_CHAN_ANYC)
1024                         continue;
1025                 get_scan_result(sr, ni);
1026                 if (sr->isr_len > sizeof(u))
1027                         continue;               /* XXX */
1028                 if (space < sr->isr_len)
1029                         break;
1030                 cp = (u_int8_t *)(sr+1);
1031                 memcpy(cp, ni->ni_essid, ni->ni_esslen);
1032                 cp += ni->ni_esslen;
1033                 if (ni->ni_wpa_ie != NULL) {
1034                         memcpy(cp, ni->ni_wpa_ie, 2+ni->ni_wpa_ie[1]);
1035                         cp += 2+ni->ni_wpa_ie[1];
1036                 }
1037                 if (ni->ni_wme_ie != NULL) {
1038                         memcpy(cp, ni->ni_wme_ie, 2+ni->ni_wme_ie[1]);
1039                         cp += 2+ni->ni_wme_ie[1];
1040                 }
1041                 error = copyout(sr, p, sr->isr_len);
1042                 if (error)
1043                         break;
1044                 p += sr->isr_len;
1045                 space -= sr->isr_len;
1046         }
1047         ireq->i_len -= space;
1048         return error;
1049 }
1050
1051 struct stainforeq {
1052         struct ieee80211com *ic;
1053         struct ieee80211req_sta_info *si;
1054         size_t  space;
1055 };
1056
1057 static size_t
1058 sta_space(const struct ieee80211_node *ni, size_t *ielen)
1059 {
1060         *ielen = 0;
1061         if (ni->ni_wpa_ie != NULL)
1062                 *ielen += 2+ni->ni_wpa_ie[1];
1063         if (ni->ni_wme_ie != NULL)
1064                 *ielen += 2+ni->ni_wme_ie[1];
1065         return roundup(sizeof(struct ieee80211req_sta_info) + *ielen,
1066                       sizeof(u_int32_t));
1067 }
1068
1069 static void
1070 get_sta_space(void *arg, struct ieee80211_node *ni)
1071 {
1072         struct stainforeq *req = arg;
1073         struct ieee80211com *ic = ni->ni_ic;
1074         size_t ielen;
1075
1076         if (ic->ic_opmode == IEEE80211_M_HOSTAP &&
1077             ni->ni_associd == 0)        /* only associated stations */
1078                 return;
1079         req->space += sta_space(ni, &ielen);
1080 }
1081
1082 static void
1083 get_sta_info(void *arg, struct ieee80211_node *ni)
1084 {
1085         struct stainforeq *req = arg;
1086         struct ieee80211com *ic = ni->ni_ic;
1087         struct ieee80211req_sta_info *si;
1088         size_t ielen, len;
1089         u_int8_t *cp;
1090
1091         if (ic->ic_opmode == IEEE80211_M_HOSTAP &&
1092             ni->ni_associd == 0)        /* only associated stations */
1093                 return;
1094         if (ni->ni_chan == IEEE80211_CHAN_ANYC) /* XXX bogus entry */
1095                 return;
1096         len = sta_space(ni, &ielen);
1097         if (len > req->space)
1098                 return;
1099         si = req->si;
1100         si->isi_len = len;
1101         si->isi_ie_len = ielen;
1102         si->isi_freq = ni->ni_chan->ic_freq;
1103         si->isi_flags = ni->ni_chan->ic_flags;
1104         si->isi_state = ni->ni_flags;
1105         si->isi_authmode = ni->ni_authmode;
1106         si->isi_rssi = ic->ic_node_getrssi(ni);
1107         si->isi_capinfo = ni->ni_capinfo;
1108         si->isi_erp = ni->ni_erp;
1109         IEEE80211_ADDR_COPY(si->isi_macaddr, ni->ni_macaddr);
1110         si->isi_nrates = ni->ni_rates.rs_nrates;
1111         if (si->isi_nrates > 15)
1112                 si->isi_nrates = 15;
1113         memcpy(si->isi_rates, ni->ni_rates.rs_rates, si->isi_nrates);
1114         si->isi_txrate = ni->ni_txrate;
1115         si->isi_associd = ni->ni_associd;
1116         si->isi_txpower = ni->ni_txpower;
1117         si->isi_vlan = ni->ni_vlan;
1118         if (ni->ni_flags & IEEE80211_NODE_QOS) {
1119                 memcpy(si->isi_txseqs, ni->ni_txseqs, sizeof(ni->ni_txseqs));
1120                 memcpy(si->isi_rxseqs, ni->ni_rxseqs, sizeof(ni->ni_rxseqs));
1121         } else {
1122                 si->isi_txseqs[0] = ni->ni_txseqs[0];
1123                 si->isi_rxseqs[0] = ni->ni_rxseqs[0];
1124         }
1125         /* NB: leave all cases in case we relax ni_associd == 0 check */
1126         if (ieee80211_node_is_authorized(ni))
1127                 si->isi_inact = ic->ic_inact_run;
1128         else if (ni->ni_associd != 0)
1129                 si->isi_inact = ic->ic_inact_auth;
1130         else
1131                 si->isi_inact = ic->ic_inact_init;
1132         si->isi_inact = (si->isi_inact - ni->ni_inact) * IEEE80211_INACT_WAIT;
1133
1134         cp = (u_int8_t *)(si+1);
1135         if (ni->ni_wpa_ie != NULL) {
1136                 memcpy(cp, ni->ni_wpa_ie, 2+ni->ni_wpa_ie[1]);
1137                 cp += 2+ni->ni_wpa_ie[1];
1138         }
1139         if (ni->ni_wme_ie != NULL) {
1140                 memcpy(cp, ni->ni_wme_ie, 2+ni->ni_wme_ie[1]);
1141                 cp += 2+ni->ni_wme_ie[1];
1142         }
1143
1144         req->si = (struct ieee80211req_sta_info *)(((u_int8_t *)si) + len);
1145         req->space -= len;
1146 }
1147
1148 static int
1149 ieee80211_ioctl_getstainfo(struct ieee80211com *ic, struct ieee80211req *ireq)
1150 {
1151         struct stainforeq req;
1152         int error;
1153
1154         if (ireq->i_len < sizeof(struct stainforeq))
1155                 return EFAULT;
1156
1157         error = 0;
1158         req.space = 0;
1159         ieee80211_iterate_nodes(&ic->ic_sta, get_sta_space, &req);
1160         if (req.space > ireq->i_len)
1161                 req.space = ireq->i_len;
1162         if (req.space > 0) {
1163                 size_t space;
1164                 void *p;
1165
1166                 space = req.space;
1167                 /* XXX M_WAITOK after driver lock released */
1168                 MALLOC(p, void *, space, M_TEMP, M_NOWAIT);
1169                 if (p == NULL)
1170                         return ENOMEM;
1171                 req.si = p;
1172                 ieee80211_iterate_nodes(&ic->ic_sta, get_sta_info, &req);
1173                 ireq->i_len = space - req.space;
1174                 error = copyout(p, ireq->i_data, ireq->i_len);
1175                 FREE(p, M_TEMP);
1176         } else
1177                 ireq->i_len = 0;
1178
1179         return error;
1180 }
1181
1182 static int
1183 ieee80211_ioctl_getstatxpow(struct ieee80211com *ic, struct ieee80211req *ireq)
1184 {
1185         struct ieee80211_node *ni;
1186         struct ieee80211req_sta_txpow txpow;
1187         int error;
1188
1189         if (ireq->i_len != sizeof(txpow))
1190                 return EINVAL;
1191         error = copyin(ireq->i_data, &txpow, sizeof(txpow));
1192         if (error != 0)
1193                 return error;
1194         ni = ieee80211_find_node(&ic->ic_sta, txpow.it_macaddr);
1195         if (ni == NULL)
1196                 return EINVAL;          /* XXX */
1197         txpow.it_txpow = ni->ni_txpower;
1198         error = copyout(&txpow, ireq->i_data, sizeof(txpow));
1199         ieee80211_free_node(ni);
1200         return error;
1201 }
1202
1203 static int
1204 ieee80211_ioctl_getwmeparam(struct ieee80211com *ic, struct ieee80211req *ireq)
1205 {
1206         struct ieee80211_wme_state *wme = &ic->ic_wme;
1207         struct wmeParams *wmep;
1208         int ac;
1209
1210         if ((ic->ic_caps & IEEE80211_C_WME) == 0)
1211                 return EINVAL;
1212
1213         ac = (ireq->i_len & IEEE80211_WMEPARAM_VAL);
1214         if (ac >= WME_NUM_AC)
1215                 ac = WME_AC_BE;
1216         if (ireq->i_len & IEEE80211_WMEPARAM_BSS)
1217                 wmep = &wme->wme_wmeBssChanParams.cap_wmeParams[ac];
1218         else
1219                 wmep = &wme->wme_wmeChanParams.cap_wmeParams[ac];
1220         switch (ireq->i_type) {
1221         case IEEE80211_IOC_WME_CWMIN:           /* WME: CWmin */
1222                 ireq->i_val = wmep->wmep_logcwmin;
1223                 break;
1224         case IEEE80211_IOC_WME_CWMAX:           /* WME: CWmax */
1225                 ireq->i_val = wmep->wmep_logcwmax;
1226                 break;
1227         case IEEE80211_IOC_WME_AIFS:            /* WME: AIFS */
1228                 ireq->i_val = wmep->wmep_aifsn;
1229                 break;
1230         case IEEE80211_IOC_WME_TXOPLIMIT:       /* WME: txops limit */
1231                 ireq->i_val = wmep->wmep_txopLimit;
1232                 break;
1233         case IEEE80211_IOC_WME_ACM:             /* WME: ACM (bss only) */
1234                 wmep = &wme->wme_wmeBssChanParams.cap_wmeParams[ac];
1235                 ireq->i_val = wmep->wmep_acm;
1236                 break;
1237         case IEEE80211_IOC_WME_ACKPOLICY:       /* WME: ACK policy (!bss only)*/
1238                 wmep = &wme->wme_wmeChanParams.cap_wmeParams[ac];
1239                 ireq->i_val = !wmep->wmep_noackPolicy;
1240                 break;
1241         }
1242         return 0;
1243 }
1244
1245 static int
1246 ieee80211_ioctl_getmaccmd(struct ieee80211com *ic, struct ieee80211req *ireq)
1247 {
1248         const struct ieee80211_aclator *acl = ic->ic_acl;
1249
1250         return (acl == NULL ? EINVAL : acl->iac_getioctl(ic, ireq));
1251 }
1252
1253 /*
1254  * When building the kernel with -O2 on the i386 architecture, gcc
1255  * seems to want to inline this function into ieee80211_ioctl()
1256  * (which is the only routine that calls it). When this happens,
1257  * ieee80211_ioctl() ends up consuming an additional 2K of stack
1258  * space. (Exactly why it needs so much is unclear.) The problem
1259  * is that it's possible for ieee80211_ioctl() to invoke other
1260  * routines (including driver init functions) which could then find
1261  * themselves perilously close to exhausting the stack.
1262  *
1263  * To avoid this, we deliberately prevent gcc from inlining this
1264  * routine. Another way to avoid this is to use less agressive
1265  * optimization when compiling this file (i.e. -O instead of -O2)
1266  * but special-casing the compilation of this one module in the
1267  * build system would be awkward.
1268  */
1269 #ifdef __GNUC__
1270 __attribute__ ((noinline))
1271 #endif
1272 static int
1273 ieee80211_ioctl_get80211(struct ieee80211com *ic, u_long cmd, struct ieee80211req *ireq)
1274 {
1275         const struct ieee80211_rsnparms *rsn = &ic->ic_bss->ni_rsn;
1276         int error = 0;
1277         u_int kid, len, m;
1278         u_int8_t tmpkey[IEEE80211_KEYBUF_SIZE];
1279         char tmpssid[IEEE80211_NWID_LEN];
1280
1281         switch (ireq->i_type) {
1282         case IEEE80211_IOC_SSID:
1283                 switch (ic->ic_state) {
1284                 case IEEE80211_S_INIT:
1285                 case IEEE80211_S_SCAN:
1286                         ireq->i_len = ic->ic_des_esslen;
1287                         memcpy(tmpssid, ic->ic_des_essid, ireq->i_len);
1288                         break;
1289                 default:
1290                         ireq->i_len = ic->ic_bss->ni_esslen;
1291                         memcpy(tmpssid, ic->ic_bss->ni_essid,
1292                                 ireq->i_len);
1293                         break;
1294                 }
1295                 error = copyout(tmpssid, ireq->i_data, ireq->i_len);
1296                 break;
1297         case IEEE80211_IOC_NUMSSIDS:
1298                 ireq->i_val = 1;
1299                 break;
1300         case IEEE80211_IOC_WEP:
1301                 if ((ic->ic_flags & IEEE80211_F_PRIVACY) == 0)
1302                         ireq->i_val = IEEE80211_WEP_OFF;
1303                 else if (ic->ic_flags & IEEE80211_F_DROPUNENC)
1304                         ireq->i_val = IEEE80211_WEP_ON;
1305                 else
1306                         ireq->i_val = IEEE80211_WEP_MIXED;
1307                 break;
1308         case IEEE80211_IOC_WEPKEY:
1309                 kid = (u_int) ireq->i_val;
1310                 if (kid >= IEEE80211_WEP_NKID)
1311                         return EINVAL;
1312                 len = (u_int) ic->ic_nw_keys[kid].wk_keylen;
1313                 /* NB: only root can read WEP keys */
1314                 if (suser(curthread) == 0) {
1315                         bcopy(ic->ic_nw_keys[kid].wk_key, tmpkey, len);
1316                 } else {
1317                         bzero(tmpkey, len);
1318                 }
1319                 ireq->i_len = len;
1320                 error = copyout(tmpkey, ireq->i_data, len);
1321                 break;
1322         case IEEE80211_IOC_NUMWEPKEYS:
1323                 ireq->i_val = IEEE80211_WEP_NKID;
1324                 break;
1325         case IEEE80211_IOC_WEPTXKEY:
1326                 ireq->i_val = ic->ic_def_txkey;
1327                 break;
1328         case IEEE80211_IOC_AUTHMODE:
1329                 if (ic->ic_flags & IEEE80211_F_WPA)
1330                         ireq->i_val = IEEE80211_AUTH_WPA;
1331                 else
1332                         ireq->i_val = ic->ic_bss->ni_authmode;
1333                 break;
1334         case IEEE80211_IOC_CHANNEL:
1335                 ireq->i_val = ieee80211_chan2ieee(ic, ic->ic_curchan);
1336                 break;
1337         case IEEE80211_IOC_POWERSAVE:
1338                 if (ic->ic_flags & IEEE80211_F_PMGTON)
1339                         ireq->i_val = IEEE80211_POWERSAVE_ON;
1340                 else
1341                         ireq->i_val = IEEE80211_POWERSAVE_OFF;
1342                 break;
1343         case IEEE80211_IOC_POWERSAVESLEEP:
1344                 ireq->i_val = ic->ic_lintval;
1345                 break;
1346         case IEEE80211_IOC_RTSTHRESHOLD:
1347                 ireq->i_val = ic->ic_rtsthreshold;
1348                 break;
1349         case IEEE80211_IOC_PROTMODE:
1350                 ireq->i_val = ic->ic_protmode;
1351                 break;
1352         case IEEE80211_IOC_TXPOWER:
1353                 if ((ic->ic_caps & IEEE80211_C_TXPMGT) == 0)
1354                         return EINVAL;
1355                 ireq->i_val = ic->ic_txpowlimit;
1356                 break;
1357         case IEEE80211_IOC_MCASTCIPHER:
1358                 ireq->i_val = rsn->rsn_mcastcipher;
1359                 break;
1360         case IEEE80211_IOC_MCASTKEYLEN:
1361                 ireq->i_val = rsn->rsn_mcastkeylen;
1362                 break;
1363         case IEEE80211_IOC_UCASTCIPHERS:
1364                 ireq->i_val = 0;
1365                 for (m = 0x1; m != 0; m <<= 1)
1366                         if (rsn->rsn_ucastcipherset & m)
1367                                 ireq->i_val |= 1<<cap2cipher(m);
1368                 break;
1369         case IEEE80211_IOC_UCASTCIPHER:
1370                 ireq->i_val = rsn->rsn_ucastcipher;
1371                 break;
1372         case IEEE80211_IOC_UCASTKEYLEN:
1373                 ireq->i_val = rsn->rsn_ucastkeylen;
1374                 break;
1375         case IEEE80211_IOC_KEYMGTALGS:
1376                 ireq->i_val = rsn->rsn_keymgmtset;
1377                 break;
1378         case IEEE80211_IOC_RSNCAPS:
1379                 ireq->i_val = rsn->rsn_caps;
1380                 break;
1381         case IEEE80211_IOC_WPA:
1382                 switch (ic->ic_flags & IEEE80211_F_WPA) {
1383                 case IEEE80211_F_WPA1:
1384                         ireq->i_val = 1;
1385                         break;
1386                 case IEEE80211_F_WPA2:
1387                         ireq->i_val = 2;
1388                         break;
1389                 case IEEE80211_F_WPA1 | IEEE80211_F_WPA2:
1390                         ireq->i_val = 3;
1391                         break;
1392                 default:
1393                         ireq->i_val = 0;
1394                         break;
1395                 }
1396                 break;
1397         case IEEE80211_IOC_CHANLIST:
1398                 error = ieee80211_ioctl_getchanlist(ic, ireq);
1399                 break;
1400         case IEEE80211_IOC_ROAMING:
1401                 ireq->i_val = ic->ic_roaming;
1402                 break;
1403         case IEEE80211_IOC_PRIVACY:
1404                 ireq->i_val = (ic->ic_flags & IEEE80211_F_PRIVACY) != 0;
1405                 break;
1406         case IEEE80211_IOC_DROPUNENCRYPTED:
1407                 ireq->i_val = (ic->ic_flags & IEEE80211_F_DROPUNENC) != 0;
1408                 break;
1409         case IEEE80211_IOC_COUNTERMEASURES:
1410                 ireq->i_val = (ic->ic_flags & IEEE80211_F_COUNTERM) != 0;
1411                 break;
1412         case IEEE80211_IOC_DRIVER_CAPS:
1413                 ireq->i_val = ic->ic_caps>>16;
1414                 ireq->i_len = ic->ic_caps&0xffff;
1415                 break;
1416         case IEEE80211_IOC_WME:
1417                 ireq->i_val = (ic->ic_flags & IEEE80211_F_WME) != 0;
1418                 break;
1419         case IEEE80211_IOC_HIDESSID:
1420                 ireq->i_val = (ic->ic_flags & IEEE80211_F_HIDESSID) != 0;
1421                 break;
1422         case IEEE80211_IOC_APBRIDGE:
1423                 ireq->i_val = (ic->ic_flags & IEEE80211_F_NOBRIDGE) == 0;
1424                 break;
1425         case IEEE80211_IOC_OPTIE:
1426                 if (ic->ic_opt_ie == NULL)
1427                         return EINVAL;
1428                 /* NB: truncate, caller can check length */
1429                 if (ireq->i_len > ic->ic_opt_ie_len)
1430                         ireq->i_len = ic->ic_opt_ie_len;
1431                 error = copyout(ic->ic_opt_ie, ireq->i_data, ireq->i_len);
1432                 break;
1433         case IEEE80211_IOC_WPAKEY:
1434                 error = ieee80211_ioctl_getkey(ic, ireq);
1435                 break;
1436         case IEEE80211_IOC_CHANINFO:
1437                 error = ieee80211_ioctl_getchaninfo(ic, ireq);
1438                 break;
1439         case IEEE80211_IOC_BSSID:
1440                 if (ireq->i_len != IEEE80211_ADDR_LEN)
1441                         return EINVAL;
1442                 error = copyout(ic->ic_state == IEEE80211_S_RUN ?
1443                                         ic->ic_bss->ni_bssid :
1444                                         ic->ic_des_bssid,
1445                                 ireq->i_data, ireq->i_len);
1446                 break;
1447         case IEEE80211_IOC_WPAIE:
1448                 error = ieee80211_ioctl_getwpaie(ic, ireq);
1449                 break;
1450         case IEEE80211_IOC_SCAN_RESULTS:
1451                 error = ieee80211_ioctl_getscanresults(ic, ireq);
1452                 break;
1453         case IEEE80211_IOC_STA_STATS:
1454                 error = ieee80211_ioctl_getstastats(ic, ireq);
1455                 break;
1456         case IEEE80211_IOC_TXPOWMAX:
1457                 ireq->i_val = ic->ic_bss->ni_txpower;
1458                 break;
1459         case IEEE80211_IOC_STA_TXPOW:
1460                 error = ieee80211_ioctl_getstatxpow(ic, ireq);
1461                 break;
1462         case IEEE80211_IOC_STA_INFO:
1463                 error = ieee80211_ioctl_getstainfo(ic, ireq);
1464                 break;
1465         case IEEE80211_IOC_WME_CWMIN:           /* WME: CWmin */
1466         case IEEE80211_IOC_WME_CWMAX:           /* WME: CWmax */
1467         case IEEE80211_IOC_WME_AIFS:            /* WME: AIFS */
1468         case IEEE80211_IOC_WME_TXOPLIMIT:       /* WME: txops limit */
1469         case IEEE80211_IOC_WME_ACM:             /* WME: ACM (bss only) */
1470         case IEEE80211_IOC_WME_ACKPOLICY:       /* WME: ACK policy (bss only) */
1471                 error = ieee80211_ioctl_getwmeparam(ic, ireq);
1472                 break;
1473         case IEEE80211_IOC_DTIM_PERIOD:
1474                 ireq->i_val = ic->ic_dtim_period;
1475                 break;
1476         case IEEE80211_IOC_BEACON_INTERVAL:
1477                 /* NB: get from ic_bss for station mode */
1478                 ireq->i_val = ic->ic_bss->ni_intval;
1479                 break;
1480         case IEEE80211_IOC_PUREG:
1481                 ireq->i_val = (ic->ic_flags & IEEE80211_F_PUREG) != 0;
1482                 break;
1483         case IEEE80211_IOC_MCAST_RATE:
1484                 ireq->i_val = ic->ic_mcast_rate;
1485                 break;
1486         case IEEE80211_IOC_FRAGTHRESHOLD:
1487                 ireq->i_val = ic->ic_fragthreshold;
1488                 break;
1489         case IEEE80211_IOC_MACCMD:
1490                 error = ieee80211_ioctl_getmaccmd(ic, ireq);
1491                 break;
1492         case IEEE80211_IOC_BURST:
1493                 ireq->i_val = (ic->ic_flags & IEEE80211_F_BURST) != 0;
1494                 break;
1495         default:
1496                 error = EINVAL;
1497                 break;
1498         }
1499         return error;
1500 }
1501
1502 static int
1503 ieee80211_ioctl_setoptie(struct ieee80211com *ic, struct ieee80211req *ireq)
1504 {
1505         int error;
1506         void *ie;
1507
1508         /*
1509          * NB: Doing this for ap operation could be useful (e.g. for
1510          *     WPA and/or WME) except that it typically is worthless
1511          *     without being able to intervene when processing
1512          *     association response frames--so disallow it for now.
1513          */
1514         if (ic->ic_opmode != IEEE80211_M_STA)
1515                 return EINVAL;
1516         if (ireq->i_len > IEEE80211_MAX_OPT_IE)
1517                 return EINVAL;
1518         MALLOC(ie, void *, ireq->i_len, M_DEVBUF, M_NOWAIT);
1519         if (ie == NULL)
1520                 return ENOMEM;
1521         error = copyin(ireq->i_data, ie, ireq->i_len);
1522         /* XXX sanity check data? */
1523         if (ic->ic_opt_ie != NULL)
1524                 FREE(ic->ic_opt_ie, M_DEVBUF);
1525         ic->ic_opt_ie = ie;
1526         ic->ic_opt_ie_len = ireq->i_len;
1527         return 0;
1528 }
1529
1530 static int
1531 ieee80211_ioctl_setkey(struct ieee80211com *ic, struct ieee80211req *ireq)
1532 {
1533         struct ieee80211req_key ik;
1534         struct ieee80211_node *ni;
1535         struct ieee80211_key *wk;
1536         u_int16_t kid;
1537         int error;
1538
1539         if (ireq->i_len != sizeof(ik))
1540                 return EINVAL;
1541         error = copyin(ireq->i_data, &ik, sizeof(ik));
1542         if (error)
1543                 return error;
1544         /* NB: cipher support is verified by ieee80211_crypt_newkey */
1545         /* NB: this also checks ik->ik_keylen > sizeof(wk->wk_key) */
1546         if (ik.ik_keylen > sizeof(ik.ik_keydata))
1547                 return E2BIG;
1548         kid = ik.ik_keyix;
1549         if (kid == IEEE80211_KEYIX_NONE) {
1550                 /* XXX unicast keys currently must be tx/rx */
1551                 if (ik.ik_flags != (IEEE80211_KEY_XMIT | IEEE80211_KEY_RECV))
1552                         return EINVAL;
1553                 if (ic->ic_opmode == IEEE80211_M_STA) {
1554                         ni = ieee80211_ref_node(ic->ic_bss);
1555                         if (!IEEE80211_ADDR_EQ(ik.ik_macaddr, ni->ni_bssid)) {
1556                                 ieee80211_free_node(ni);
1557                                 return EADDRNOTAVAIL;
1558                         }
1559                 } else {
1560                         ni = ieee80211_find_node(&ic->ic_sta, ik.ik_macaddr);
1561                         if (ni == NULL)
1562                                 return ENOENT;
1563                 }
1564                 wk = &ni->ni_ucastkey;
1565         } else {
1566                 if (kid >= IEEE80211_WEP_NKID)
1567                         return EINVAL;
1568                 wk = &ic->ic_nw_keys[kid];
1569                 ni = NULL;
1570         }
1571         error = 0;
1572         ieee80211_key_update_begin(ic);
1573         if (ieee80211_crypto_newkey(ic, ik.ik_type, ik.ik_flags, wk)) {
1574                 wk->wk_keylen = ik.ik_keylen;
1575                 /* NB: MIC presence is implied by cipher type */
1576                 if (wk->wk_keylen > IEEE80211_KEYBUF_SIZE)
1577                         wk->wk_keylen = IEEE80211_KEYBUF_SIZE;
1578                 wk->wk_keyrsc = ik.ik_keyrsc;
1579                 wk->wk_keytsc = 0;                      /* new key, reset */
1580                 memset(wk->wk_key, 0, sizeof(wk->wk_key));
1581                 memcpy(wk->wk_key, ik.ik_keydata, ik.ik_keylen);
1582                 if (!ieee80211_crypto_setkey(ic, wk,
1583                     ni != NULL ? ni->ni_macaddr : ik.ik_macaddr))
1584                         error = EIO;
1585                 else if ((ik.ik_flags & IEEE80211_KEY_DEFAULT))
1586                         ic->ic_def_txkey = kid;
1587         } else
1588                 error = ENXIO;
1589         ieee80211_key_update_end(ic);
1590         if (ni != NULL)
1591                 ieee80211_free_node(ni);
1592         return error;
1593 }
1594
1595 static int
1596 ieee80211_ioctl_delkey(struct ieee80211com *ic, struct ieee80211req *ireq)
1597 {
1598         struct ieee80211req_del_key dk;
1599         int kid, error;
1600
1601         if (ireq->i_len != sizeof(dk))
1602                 return EINVAL;
1603         error = copyin(ireq->i_data, &dk, sizeof(dk));
1604         if (error)
1605                 return error;
1606         kid = dk.idk_keyix;
1607         /* XXX u_int8_t -> u_int16_t */
1608         if (dk.idk_keyix == (u_int8_t) IEEE80211_KEYIX_NONE) {
1609                 struct ieee80211_node *ni;
1610
1611                 if (ic->ic_opmode == IEEE80211_M_STA) {
1612                         ni = ieee80211_ref_node(ic->ic_bss);
1613                         if (!IEEE80211_ADDR_EQ(dk.idk_macaddr, ni->ni_bssid)) {
1614                                 ieee80211_free_node(ni);
1615                                 return EADDRNOTAVAIL;
1616                         }
1617                 } else {
1618                         ni = ieee80211_find_node(&ic->ic_sta, dk.idk_macaddr);
1619                         if (ni == NULL)
1620                                 return ENOENT;
1621                 }
1622                 /* XXX error return */
1623                 ieee80211_node_delucastkey(ni);
1624                 ieee80211_free_node(ni);
1625         } else {
1626                 if (kid >= IEEE80211_WEP_NKID)
1627                         return EINVAL;
1628                 /* XXX error return */
1629                 ieee80211_crypto_delkey(ic, &ic->ic_nw_keys[kid]);
1630         }
1631         return 0;
1632 }
1633
1634 static void
1635 domlme(void *arg, struct ieee80211_node *ni)
1636 {
1637         struct ieee80211com *ic = ni->ni_ic;
1638         struct ieee80211req_mlme *mlme = arg;
1639
1640         if (ni->ni_associd != 0) {
1641                 IEEE80211_SEND_MGMT(ic, ni,
1642                         mlme->im_op == IEEE80211_MLME_DEAUTH ?
1643                                 IEEE80211_FC0_SUBTYPE_DEAUTH :
1644                                 IEEE80211_FC0_SUBTYPE_DISASSOC,
1645                         mlme->im_reason);
1646         }
1647         ieee80211_node_leave(ic, ni);
1648 }
1649
1650 static int
1651 ieee80211_ioctl_setmlme(struct ieee80211com *ic, struct ieee80211req *ireq)
1652 {
1653         struct ieee80211req_mlme mlme;
1654         struct ieee80211_node *ni;
1655         int error;
1656
1657         if (ireq->i_len != sizeof(mlme))
1658                 return EINVAL;
1659         error = copyin(ireq->i_data, &mlme, sizeof(mlme));
1660         if (error)
1661                 return error;
1662         switch (mlme.im_op) {
1663         case IEEE80211_MLME_ASSOC:
1664                 if (ic->ic_opmode != IEEE80211_M_STA)
1665                         return EINVAL;
1666                 /* XXX must be in S_SCAN state? */
1667
1668                 if (mlme.im_ssid_len != 0) {
1669                         /*
1670                          * Desired ssid specified; must match both bssid and
1671                          * ssid to distinguish ap advertising multiple ssid's.
1672                          */
1673                         ni = ieee80211_find_node_with_ssid(&ic->ic_scan,
1674                                 mlme.im_macaddr,
1675                                 mlme.im_ssid_len, mlme.im_ssid);
1676                 } else {
1677                         /*
1678                          * Normal case; just match bssid.
1679                          */
1680                         ni = ieee80211_find_node(&ic->ic_scan, mlme.im_macaddr);
1681                 }
1682                 if (ni == NULL)
1683                         return EINVAL;
1684                 if (!ieee80211_sta_join(ic, ni)) {
1685                         ieee80211_free_node(ni);
1686                         return EINVAL;
1687                 }
1688                 break;
1689         case IEEE80211_MLME_DISASSOC:
1690         case IEEE80211_MLME_DEAUTH:
1691                 switch (ic->ic_opmode) {
1692                 case IEEE80211_M_STA:
1693                         /* XXX not quite right */
1694                         ieee80211_new_state(ic, IEEE80211_S_INIT,
1695                                 mlme.im_reason);
1696                         break;
1697                 case IEEE80211_M_HOSTAP:
1698                         /* NB: the broadcast address means do 'em all */
1699                         if (!IEEE80211_ADDR_EQ(mlme.im_macaddr, ic->ic_ifp->if_broadcastaddr)) {
1700                                 if ((ni = ieee80211_find_node(&ic->ic_sta,
1701                                                 mlme.im_macaddr)) == NULL)
1702                                         return EINVAL;
1703                                 domlme(&mlme, ni);
1704                                 ieee80211_free_node(ni);
1705                         } else {
1706                                 ieee80211_iterate_nodes(&ic->ic_sta,
1707                                                 domlme, &mlme);
1708                         }
1709                         break;
1710                 default:
1711                         return EINVAL;
1712                 }
1713                 break;
1714         case IEEE80211_MLME_AUTHORIZE:
1715         case IEEE80211_MLME_UNAUTHORIZE:
1716                 if (ic->ic_opmode != IEEE80211_M_HOSTAP)
1717                         return EINVAL;
1718                 ni = ieee80211_find_node(&ic->ic_sta, mlme.im_macaddr);
1719                 if (ni == NULL)
1720                         return EINVAL;
1721                 if (mlme.im_op == IEEE80211_MLME_AUTHORIZE)
1722                         ieee80211_node_authorize(ni);
1723                 else
1724                         ieee80211_node_unauthorize(ni);
1725                 ieee80211_free_node(ni);
1726                 break;
1727         default:
1728                 return EINVAL;
1729         }
1730         return 0;
1731 }
1732
1733 static int
1734 ieee80211_ioctl_macmac(struct ieee80211com *ic, struct ieee80211req *ireq)
1735 {
1736         u_int8_t mac[IEEE80211_ADDR_LEN];
1737         const struct ieee80211_aclator *acl = ic->ic_acl;
1738         int error;
1739
1740         if (ireq->i_len != sizeof(mac))
1741                 return EINVAL;
1742         error = copyin(ireq->i_data, mac, ireq->i_len);
1743         if (error)
1744                 return error;
1745         if (acl == NULL) {
1746                 acl = ieee80211_aclator_get("mac");
1747                 if (acl == NULL || !acl->iac_attach(ic))
1748                         return EINVAL;
1749                 ic->ic_acl = acl;
1750         }
1751         if (ireq->i_type == IEEE80211_IOC_ADDMAC)
1752                 acl->iac_add(ic, mac);
1753         else
1754                 acl->iac_remove(ic, mac);
1755         return 0;
1756 }
1757
1758 static int
1759 ieee80211_ioctl_setmaccmd(struct ieee80211com *ic, struct ieee80211req *ireq)
1760 {
1761         const struct ieee80211_aclator *acl = ic->ic_acl;
1762
1763         switch (ireq->i_val) {
1764         case IEEE80211_MACCMD_POLICY_OPEN:
1765         case IEEE80211_MACCMD_POLICY_ALLOW:
1766         case IEEE80211_MACCMD_POLICY_DENY:
1767                 if (acl == NULL) {
1768                         acl = ieee80211_aclator_get("mac");
1769                         if (acl == NULL || !acl->iac_attach(ic))
1770                                 return EINVAL;
1771                         ic->ic_acl = acl;
1772                 }
1773                 acl->iac_setpolicy(ic, ireq->i_val);
1774                 break;
1775         case IEEE80211_MACCMD_FLUSH:
1776                 if (acl != NULL)
1777                         acl->iac_flush(ic);
1778                 /* NB: silently ignore when not in use */
1779                 break;
1780         case IEEE80211_MACCMD_DETACH:
1781                 if (acl != NULL) {
1782                         ic->ic_acl = NULL;
1783                         acl->iac_detach(ic);
1784                 }
1785                 break;
1786         default:
1787                 if (acl == NULL)
1788                         return EINVAL;
1789                 else
1790                         return acl->iac_setioctl(ic, ireq);
1791         }
1792         return 0;
1793 }
1794
1795 static int
1796 ieee80211_ioctl_setchanlist(struct ieee80211com *ic, struct ieee80211req *ireq)
1797 {
1798         struct ieee80211req_chanlist list;
1799         u_char chanlist[IEEE80211_CHAN_BYTES];
1800         int i, j, error;
1801
1802         if (ireq->i_len != sizeof(list))
1803                 return EINVAL;
1804         error = copyin(ireq->i_data, &list, sizeof(list));
1805         if (error)
1806                 return error;
1807         memset(chanlist, 0, sizeof(chanlist));
1808         /*
1809          * Since channel 0 is not available for DS, channel 1
1810          * is assigned to LSB on WaveLAN.
1811          */
1812         if (ic->ic_phytype == IEEE80211_T_DS)
1813                 i = 1;
1814         else
1815                 i = 0;
1816         for (j = 0; i <= IEEE80211_CHAN_MAX; i++, j++) {
1817                 /*
1818                  * NB: silently discard unavailable channels so users
1819                  *     can specify 1-255 to get all available channels.
1820                  */
1821                 if (isset(list.ic_channels, j) && isset(ic->ic_chan_avail, i))
1822                         setbit(chanlist, i);
1823         }
1824         if (ic->ic_ibss_chan == NULL ||
1825             isclr(chanlist, ieee80211_chan2ieee(ic, ic->ic_ibss_chan))) {
1826                 for (i = 0; i <= IEEE80211_CHAN_MAX; i++)
1827                         if (isset(chanlist, i)) {
1828                                 ic->ic_ibss_chan = &ic->ic_channels[i];
1829                                 goto found;
1830                         }
1831                 return EINVAL;                  /* no active channels */
1832 found:
1833                 ;
1834         }
1835         memcpy(ic->ic_chan_active, chanlist, sizeof(ic->ic_chan_active));
1836         return IS_UP_AUTO(ic) ? ENETRESET : 0;
1837 }
1838
1839 static int
1840 ieee80211_ioctl_setstatxpow(struct ieee80211com *ic, struct ieee80211req *ireq)
1841 {
1842         struct ieee80211_node *ni;
1843         struct ieee80211req_sta_txpow txpow;
1844         int error;
1845
1846         if (ireq->i_len != sizeof(txpow))
1847                 return EINVAL;
1848         error = copyin(ireq->i_data, &txpow, sizeof(txpow));
1849         if (error != 0)
1850                 return error;
1851         ni = ieee80211_find_node(&ic->ic_sta, txpow.it_macaddr);
1852         if (ni == NULL)
1853                 return EINVAL;          /* XXX */
1854         ni->ni_txpower = txpow.it_txpow;
1855         ieee80211_free_node(ni);
1856         return error;
1857 }
1858
1859 static int
1860 ieee80211_ioctl_setwmeparam(struct ieee80211com *ic, struct ieee80211req *ireq)
1861 {
1862         struct ieee80211_wme_state *wme = &ic->ic_wme;
1863         struct wmeParams *wmep, *chanp;
1864         int isbss, ac;
1865
1866         if ((ic->ic_caps & IEEE80211_C_WME) == 0)
1867                 return EINVAL;
1868
1869         isbss = (ireq->i_len & IEEE80211_WMEPARAM_BSS);
1870         ac = (ireq->i_len & IEEE80211_WMEPARAM_VAL);
1871         if (ac >= WME_NUM_AC)
1872                 ac = WME_AC_BE;
1873         if (isbss) {
1874                 chanp = &wme->wme_bssChanParams.cap_wmeParams[ac];
1875                 wmep = &wme->wme_wmeBssChanParams.cap_wmeParams[ac];
1876         } else {
1877                 chanp = &wme->wme_chanParams.cap_wmeParams[ac];
1878                 wmep = &wme->wme_wmeChanParams.cap_wmeParams[ac];
1879         }
1880         switch (ireq->i_type) {
1881         case IEEE80211_IOC_WME_CWMIN:           /* WME: CWmin */
1882                 if (isbss) {
1883                         wmep->wmep_logcwmin = ireq->i_val;
1884                         if ((wme->wme_flags & WME_F_AGGRMODE) == 0)
1885                                 chanp->wmep_logcwmin = ireq->i_val;
1886                 } else {
1887                         wmep->wmep_logcwmin = chanp->wmep_logcwmin =
1888                                 ireq->i_val;
1889                 }
1890                 break;
1891         case IEEE80211_IOC_WME_CWMAX:           /* WME: CWmax */
1892                 if (isbss) {
1893                         wmep->wmep_logcwmax = ireq->i_val;
1894                         if ((wme->wme_flags & WME_F_AGGRMODE) == 0)
1895                                 chanp->wmep_logcwmax = ireq->i_val;
1896                 } else {
1897                         wmep->wmep_logcwmax = chanp->wmep_logcwmax =
1898                                 ireq->i_val;
1899                 }
1900                 break;
1901         case IEEE80211_IOC_WME_AIFS:            /* WME: AIFS */
1902                 if (isbss) {
1903                         wmep->wmep_aifsn = ireq->i_val;
1904                         if ((wme->wme_flags & WME_F_AGGRMODE) == 0)
1905                                 chanp->wmep_aifsn = ireq->i_val;
1906                 } else {
1907                         wmep->wmep_aifsn = chanp->wmep_aifsn = ireq->i_val;
1908                 }
1909                 break;
1910         case IEEE80211_IOC_WME_TXOPLIMIT:       /* WME: txops limit */
1911                 if (isbss) {
1912                         wmep->wmep_txopLimit = ireq->i_val;
1913                         if ((wme->wme_flags & WME_F_AGGRMODE) == 0)
1914                                 chanp->wmep_txopLimit = ireq->i_val;
1915                 } else {
1916                         wmep->wmep_txopLimit = chanp->wmep_txopLimit =
1917                                 ireq->i_val;
1918                 }
1919                 break;
1920         case IEEE80211_IOC_WME_ACM:             /* WME: ACM (bss only) */
1921                 wmep->wmep_acm = ireq->i_val;
1922                 if ((wme->wme_flags & WME_F_AGGRMODE) == 0)
1923                         chanp->wmep_acm = ireq->i_val;
1924                 break;
1925         case IEEE80211_IOC_WME_ACKPOLICY:       /* WME: ACK policy (!bss only)*/
1926                 wmep->wmep_noackPolicy = chanp->wmep_noackPolicy =
1927                         (ireq->i_val) == 0;
1928                 break;
1929         }
1930         ieee80211_wme_updateparams(ic);
1931         return 0;
1932 }
1933
1934 static int
1935 cipher2cap(int cipher)
1936 {
1937         switch (cipher) {
1938         case IEEE80211_CIPHER_WEP:      return IEEE80211_C_WEP;
1939         case IEEE80211_CIPHER_AES_OCB:  return IEEE80211_C_AES;
1940         case IEEE80211_CIPHER_AES_CCM:  return IEEE80211_C_AES_CCM;
1941         case IEEE80211_CIPHER_CKIP:     return IEEE80211_C_CKIP;
1942         case IEEE80211_CIPHER_TKIP:     return IEEE80211_C_TKIP;
1943         }
1944         return 0;
1945 }
1946
1947 static int
1948 ieee80211_ioctl_set80211(struct ieee80211com *ic, u_long cmd, struct ieee80211req *ireq)
1949 {
1950         static const u_int8_t zerobssid[IEEE80211_ADDR_LEN];
1951         struct ieee80211_rsnparms *rsn = &ic->ic_bss->ni_rsn;
1952         int error;
1953         const struct ieee80211_authenticator *auth;
1954         u_int8_t tmpkey[IEEE80211_KEYBUF_SIZE];
1955         char tmpssid[IEEE80211_NWID_LEN];
1956         u_int8_t tmpbssid[IEEE80211_ADDR_LEN];
1957         struct ieee80211_key *k;
1958         int j, caps;
1959         u_int kid;
1960
1961         error = 0;
1962         switch (ireq->i_type) {
1963         case IEEE80211_IOC_SSID:
1964                 if (ireq->i_val != 0 ||
1965                     ireq->i_len > IEEE80211_NWID_LEN)
1966                         return EINVAL;
1967                 error = copyin(ireq->i_data, tmpssid, ireq->i_len);
1968                 if (error)
1969                         break;
1970                 memset(ic->ic_des_essid, 0, IEEE80211_NWID_LEN);
1971                 ic->ic_des_esslen = ireq->i_len;
1972                 memcpy(ic->ic_des_essid, tmpssid, ireq->i_len);
1973                 error = ENETRESET;
1974                 break;
1975         case IEEE80211_IOC_WEP:
1976                 switch (ireq->i_val) {
1977                 case IEEE80211_WEP_OFF:
1978                         ic->ic_flags &= ~IEEE80211_F_PRIVACY;
1979                         ic->ic_flags &= ~IEEE80211_F_DROPUNENC;
1980                         break;
1981                 case IEEE80211_WEP_ON:
1982                         ic->ic_flags |= IEEE80211_F_PRIVACY;
1983                         ic->ic_flags |= IEEE80211_F_DROPUNENC;
1984                         break;
1985                 case IEEE80211_WEP_MIXED:
1986                         ic->ic_flags |= IEEE80211_F_PRIVACY;
1987                         ic->ic_flags &= ~IEEE80211_F_DROPUNENC;
1988                         break;
1989                 }
1990                 error = ENETRESET;
1991                 break;
1992         case IEEE80211_IOC_WEPKEY:
1993                 kid = (u_int) ireq->i_val;
1994                 if (kid >= IEEE80211_WEP_NKID)
1995                         return EINVAL;
1996                 k = &ic->ic_nw_keys[kid];
1997                 if (ireq->i_len == 0) {
1998                         /* zero-len =>'s delete any existing key */
1999                         (void) ieee80211_crypto_delkey(ic, k);
2000                         break;
2001                 }
2002                 if (ireq->i_len > sizeof(tmpkey))
2003                         return EINVAL;
2004                 memset(tmpkey, 0, sizeof(tmpkey));
2005                 error = copyin(ireq->i_data, tmpkey, ireq->i_len);
2006                 if (error)
2007                         break;
2008                 ieee80211_key_update_begin(ic);
2009                 k->wk_keyix = kid;      /* NB: force fixed key id */
2010                 if (ieee80211_crypto_newkey(ic, IEEE80211_CIPHER_WEP,
2011                     IEEE80211_KEY_XMIT | IEEE80211_KEY_RECV, k)) {
2012                         k->wk_keylen = ireq->i_len;
2013                         memcpy(k->wk_key, tmpkey, sizeof(tmpkey));
2014                         if  (!ieee80211_crypto_setkey(ic, k, ic->ic_myaddr))
2015                                 error = EINVAL;
2016                 } else
2017                         error = EINVAL;
2018                 ieee80211_key_update_end(ic);
2019                 if (!error)                     /* NB: for compatibility */
2020                         error = ENETRESET;
2021                 break;
2022         case IEEE80211_IOC_WEPTXKEY:
2023                 kid = (u_int) ireq->i_val;
2024                 if (kid >= IEEE80211_WEP_NKID &&
2025                     (u_int16_t) kid != IEEE80211_KEYIX_NONE)
2026                         return EINVAL;
2027                 ic->ic_def_txkey = kid;
2028                 error = ENETRESET;      /* push to hardware */
2029                 break;
2030         case IEEE80211_IOC_AUTHMODE:
2031                 switch (ireq->i_val) {
2032                 case IEEE80211_AUTH_WPA:
2033                 case IEEE80211_AUTH_8021X:      /* 802.1x */
2034                 case IEEE80211_AUTH_OPEN:       /* open */
2035                 case IEEE80211_AUTH_SHARED:     /* shared-key */
2036                 case IEEE80211_AUTH_AUTO:       /* auto */
2037                         auth = ieee80211_authenticator_get(ireq->i_val);
2038                         if (auth == NULL)
2039                                 return EINVAL;
2040                         break;
2041                 default:
2042                         return EINVAL;
2043                 }
2044                 switch (ireq->i_val) {
2045                 case IEEE80211_AUTH_WPA:        /* WPA w/ 802.1x */
2046                         ic->ic_flags |= IEEE80211_F_PRIVACY;
2047                         ireq->i_val = IEEE80211_AUTH_8021X;
2048                         break;
2049                 case IEEE80211_AUTH_OPEN:       /* open */
2050                         ic->ic_flags &= ~(IEEE80211_F_WPA|IEEE80211_F_PRIVACY);
2051                         break;
2052                 case IEEE80211_AUTH_SHARED:     /* shared-key */
2053                 case IEEE80211_AUTH_8021X:      /* 802.1x */
2054                         ic->ic_flags &= ~IEEE80211_F_WPA;
2055                         /* both require a key so mark the PRIVACY capability */
2056                         ic->ic_flags |= IEEE80211_F_PRIVACY;
2057                         break;
2058                 case IEEE80211_AUTH_AUTO:       /* auto */
2059                         ic->ic_flags &= ~IEEE80211_F_WPA;
2060                         /* XXX PRIVACY handling? */
2061                         /* XXX what's the right way to do this? */
2062                         break;
2063                 }
2064                 /* NB: authenticator attach/detach happens on state change */
2065                 ic->ic_bss->ni_authmode = ireq->i_val;
2066                 /* XXX mixed/mode/usage? */
2067                 ic->ic_auth = auth;
2068                 error = ENETRESET;
2069                 break;
2070         case IEEE80211_IOC_CHANNEL:
2071                 /* XXX 0xffff overflows 16-bit signed */
2072                 if (ireq->i_val == 0 ||
2073                     ireq->i_val == (int16_t) IEEE80211_CHAN_ANY)
2074                         ic->ic_des_chan = IEEE80211_CHAN_ANYC;
2075                 else if ((u_int) ireq->i_val > IEEE80211_CHAN_MAX ||
2076                     isclr(ic->ic_chan_active, ireq->i_val)) {
2077                         return EINVAL;
2078                 } else
2079                         ic->ic_ibss_chan = ic->ic_des_chan =
2080                                 &ic->ic_channels[ireq->i_val];
2081                 switch (ic->ic_state) {
2082                 case IEEE80211_S_INIT:
2083                 case IEEE80211_S_SCAN:
2084                         error = ENETRESET;
2085                         break;
2086                 default:
2087                         /*
2088                          * If the desired channel has changed (to something
2089                          * other than any) and we're not already scanning,
2090                          * then kick the state machine.
2091                          */
2092                         if (ic->ic_des_chan != IEEE80211_CHAN_ANYC &&
2093                             ic->ic_bss->ni_chan != ic->ic_des_chan &&
2094                             (ic->ic_flags & IEEE80211_F_SCAN) == 0)
2095                                 error = ENETRESET;
2096                         break;
2097                 }
2098                 if (error == ENETRESET &&
2099                         ic->ic_opmode == IEEE80211_M_MONITOR) {
2100                         if (IS_UP(ic)) {
2101                                 /*
2102                                  * Monitor mode can switch directly.
2103                                  */
2104                                 if (ic->ic_des_chan != IEEE80211_CHAN_ANYC)
2105                                         ic->ic_curchan = ic->ic_des_chan;
2106                                 error = ic->ic_reset(ic->ic_ifp);
2107                         } else
2108                                 error = 0;
2109                 }
2110                 break;
2111         case IEEE80211_IOC_POWERSAVE:
2112                 switch (ireq->i_val) {
2113                 case IEEE80211_POWERSAVE_OFF:
2114                         if (ic->ic_flags & IEEE80211_F_PMGTON) {
2115                                 ic->ic_flags &= ~IEEE80211_F_PMGTON;
2116                                 error = ENETRESET;
2117                         }
2118                         break;
2119                 case IEEE80211_POWERSAVE_ON:
2120                         if ((ic->ic_caps & IEEE80211_C_PMGT) == 0)
2121                                 error = EINVAL;
2122                         else if ((ic->ic_flags & IEEE80211_F_PMGTON) == 0) {
2123                                 ic->ic_flags |= IEEE80211_F_PMGTON;
2124                                 error = ENETRESET;
2125                         }
2126                         break;
2127                 default:
2128                         error = EINVAL;
2129                         break;
2130                 }
2131                 break;
2132         case IEEE80211_IOC_POWERSAVESLEEP:
2133                 if (ireq->i_val < 0)
2134                         return EINVAL;
2135                 ic->ic_lintval = ireq->i_val;
2136                 error = IS_UP(ic) ? ic->ic_reset(ic->ic_ifp) : 0;
2137                 break;
2138         case IEEE80211_IOC_RTSTHRESHOLD:
2139                 if (!(IEEE80211_RTS_MIN <= ireq->i_val &&
2140                       ireq->i_val <= IEEE80211_RTS_MAX))
2141                         return EINVAL;
2142                 ic->ic_rtsthreshold = ireq->i_val;
2143                 error = IS_UP(ic) ? ic->ic_reset(ic->ic_ifp) : 0;
2144                 break;
2145         case IEEE80211_IOC_PROTMODE:
2146                 if (ireq->i_val > IEEE80211_PROT_RTSCTS)
2147                         return EINVAL;
2148                 ic->ic_protmode = ireq->i_val;
2149                 /* NB: if not operating in 11g this can wait */
2150                 if (ic->ic_curmode == IEEE80211_MODE_11G)
2151                         error = IS_UP(ic) ? ic->ic_reset(ic->ic_ifp) : 0;
2152                 break;
2153         case IEEE80211_IOC_TXPOWER:
2154                 if ((ic->ic_caps & IEEE80211_C_TXPMGT) == 0)
2155                         return EINVAL;
2156                 if (!(IEEE80211_TXPOWER_MIN < ireq->i_val &&
2157                       ireq->i_val < IEEE80211_TXPOWER_MAX))
2158                         return EINVAL;
2159                 ic->ic_txpowlimit = ireq->i_val;
2160                 error = IS_UP(ic) ? ic->ic_reset(ic->ic_ifp) : 0;
2161                 break;
2162         case IEEE80211_IOC_ROAMING:
2163                 if (!(IEEE80211_ROAMING_DEVICE <= ireq->i_val &&
2164                     ireq->i_val <= IEEE80211_ROAMING_MANUAL))
2165                         return EINVAL;
2166                 ic->ic_roaming = ireq->i_val;
2167                 /* XXXX reset? */
2168                 break;
2169         case IEEE80211_IOC_PRIVACY:
2170                 if (ireq->i_val) {
2171                         /* XXX check for key state? */
2172                         ic->ic_flags |= IEEE80211_F_PRIVACY;
2173                 } else
2174                         ic->ic_flags &= ~IEEE80211_F_PRIVACY;
2175                 break;
2176         case IEEE80211_IOC_DROPUNENCRYPTED:
2177                 if (ireq->i_val)
2178                         ic->ic_flags |= IEEE80211_F_DROPUNENC;
2179                 else
2180                         ic->ic_flags &= ~IEEE80211_F_DROPUNENC;
2181                 break;
2182         case IEEE80211_IOC_WPAKEY:
2183                 error = ieee80211_ioctl_setkey(ic, ireq);
2184                 break;
2185         case IEEE80211_IOC_DELKEY:
2186                 error = ieee80211_ioctl_delkey(ic, ireq);
2187                 break;
2188         case IEEE80211_IOC_MLME:
2189                 error = ieee80211_ioctl_setmlme(ic, ireq);
2190                 break;
2191         case IEEE80211_IOC_OPTIE:
2192                 error = ieee80211_ioctl_setoptie(ic, ireq);
2193                 break;
2194         case IEEE80211_IOC_COUNTERMEASURES:
2195                 if (ireq->i_val) {
2196                         if ((ic->ic_flags & IEEE80211_F_WPA) == 0)
2197                                 return EINVAL;
2198                         ic->ic_flags |= IEEE80211_F_COUNTERM;
2199                 } else
2200                         ic->ic_flags &= ~IEEE80211_F_COUNTERM;
2201                 break;
2202         case IEEE80211_IOC_WPA:
2203                 if (ireq->i_val > 3)
2204                         return EINVAL;
2205                 /* XXX verify ciphers available */
2206                 ic->ic_flags &= ~IEEE80211_F_WPA;
2207                 switch (ireq->i_val) {
2208                 case 1:
2209                         ic->ic_flags |= IEEE80211_F_WPA1;
2210                         break;
2211                 case 2:
2212                         ic->ic_flags |= IEEE80211_F_WPA2;
2213                         break;
2214                 case 3:
2215                         ic->ic_flags |= IEEE80211_F_WPA1 | IEEE80211_F_WPA2;
2216                         break;
2217                 }
2218                 error = ENETRESET;              /* XXX? */
2219                 break;
2220         case IEEE80211_IOC_WME:
2221                 if (ireq->i_val) {
2222                         if ((ic->ic_caps & IEEE80211_C_WME) == 0)
2223                                 return EINVAL;
2224                         ic->ic_flags |= IEEE80211_F_WME;
2225                 } else
2226                         ic->ic_flags &= ~IEEE80211_F_WME;
2227                 error = ENETRESET;              /* XXX maybe not for station? */
2228                 break;
2229         case IEEE80211_IOC_HIDESSID:
2230                 if (ireq->i_val)
2231                         ic->ic_flags |= IEEE80211_F_HIDESSID;
2232                 else
2233                         ic->ic_flags &= ~IEEE80211_F_HIDESSID;
2234                 error = ENETRESET;
2235                 break;
2236         case IEEE80211_IOC_APBRIDGE:
2237                 if (ireq->i_val == 0)
2238                         ic->ic_flags |= IEEE80211_F_NOBRIDGE;
2239                 else
2240                         ic->ic_flags &= ~IEEE80211_F_NOBRIDGE;
2241                 break;
2242         case IEEE80211_IOC_MCASTCIPHER:
2243                 if ((ic->ic_caps & cipher2cap(ireq->i_val)) == 0 &&
2244                     !ieee80211_crypto_available(ireq->i_val))
2245                         return EINVAL;
2246                 rsn->rsn_mcastcipher = ireq->i_val;
2247                 error = (ic->ic_flags & IEEE80211_F_WPA) ? ENETRESET : 0;
2248                 break;
2249         case IEEE80211_IOC_MCASTKEYLEN:
2250                 if (!(0 < ireq->i_val && ireq->i_val < IEEE80211_KEYBUF_SIZE))
2251                         return EINVAL;
2252                 /* XXX no way to verify driver capability */
2253                 rsn->rsn_mcastkeylen = ireq->i_val;
2254                 error = (ic->ic_flags & IEEE80211_F_WPA) ? ENETRESET : 0;
2255                 break;
2256         case IEEE80211_IOC_UCASTCIPHERS:
2257                 /*
2258                  * Convert user-specified cipher set to the set
2259                  * we can support (via hardware or software).
2260                  * NB: this logic intentionally ignores unknown and
2261                  * unsupported ciphers so folks can specify 0xff or
2262                  * similar and get all available ciphers.
2263                  */
2264                 caps = 0;
2265                 for (j = 1; j < 32; j++)        /* NB: skip WEP */
2266                         if ((ireq->i_val & (1<<j)) &&
2267                             ((ic->ic_caps & cipher2cap(j)) ||
2268                              ieee80211_crypto_available(j)))
2269                                 caps |= 1<<j;
2270                 if (caps == 0)                  /* nothing available */
2271                         return EINVAL;
2272                 /* XXX verify ciphers ok for unicast use? */
2273                 /* XXX disallow if running as it'll have no effect */
2274                 rsn->rsn_ucastcipherset = caps;
2275                 error = (ic->ic_flags & IEEE80211_F_WPA) ? ENETRESET : 0;
2276                 break;
2277         case IEEE80211_IOC_UCASTCIPHER:
2278                 if ((rsn->rsn_ucastcipherset & cipher2cap(ireq->i_val)) == 0)
2279                         return EINVAL;
2280                 rsn->rsn_ucastcipher = ireq->i_val;
2281                 break;
2282         case IEEE80211_IOC_UCASTKEYLEN:
2283                 if (!(0 < ireq->i_val && ireq->i_val < IEEE80211_KEYBUF_SIZE))
2284                         return EINVAL;
2285                 /* XXX no way to verify driver capability */
2286                 rsn->rsn_ucastkeylen = ireq->i_val;
2287                 break;
2288         case IEEE80211_IOC_DRIVER_CAPS:
2289                 /* NB: for testing */
2290                 ic->ic_caps = (((u_int16_t) ireq->i_val) << 16) |
2291                                ((u_int16_t) ireq->i_len);
2292                 break;
2293         case IEEE80211_IOC_KEYMGTALGS:
2294                 /* XXX check */
2295                 rsn->rsn_keymgmtset = ireq->i_val;
2296                 error = (ic->ic_flags & IEEE80211_F_WPA) ? ENETRESET : 0;
2297                 break;
2298         case IEEE80211_IOC_RSNCAPS:
2299                 /* XXX check */
2300                 rsn->rsn_caps = ireq->i_val;
2301                 error = (ic->ic_flags & IEEE80211_F_WPA) ? ENETRESET : 0;
2302                 break;
2303         case IEEE80211_IOC_BSSID:
2304                 if (ireq->i_len != sizeof(tmpbssid))
2305                         return EINVAL;
2306                 error = copyin(ireq->i_data, tmpbssid, ireq->i_len);
2307                 if (error)
2308                         break;
2309                 IEEE80211_ADDR_COPY(ic->ic_des_bssid, tmpbssid);
2310                 if (IEEE80211_ADDR_EQ(ic->ic_des_bssid, zerobssid))
2311                         ic->ic_flags &= ~IEEE80211_F_DESBSSID;
2312                 else
2313                         ic->ic_flags |= IEEE80211_F_DESBSSID;
2314                 error = ENETRESET;
2315                 break;
2316         case IEEE80211_IOC_CHANLIST:
2317                 error = ieee80211_ioctl_setchanlist(ic, ireq);
2318                 break;
2319         case IEEE80211_IOC_SCAN_REQ:
2320                 if (ic->ic_opmode == IEEE80211_M_HOSTAP)        /* XXX ignore */
2321                         break;
2322                 error = ieee80211_setupscan(ic, ic->ic_chan_avail);
2323                 if (error == 0)         /* XXX background scan */
2324                         error = ieee80211_new_state(ic, IEEE80211_S_SCAN, -1);
2325                 break;
2326         case IEEE80211_IOC_ADDMAC:
2327         case IEEE80211_IOC_DELMAC:
2328                 error = ieee80211_ioctl_macmac(ic, ireq);
2329                 break;
2330         case IEEE80211_IOC_MACCMD:
2331                 error = ieee80211_ioctl_setmaccmd(ic, ireq);
2332                 break;
2333         case IEEE80211_IOC_STA_TXPOW:
2334                 error = ieee80211_ioctl_setstatxpow(ic, ireq);
2335                 break;
2336         case IEEE80211_IOC_WME_CWMIN:           /* WME: CWmin */
2337         case IEEE80211_IOC_WME_CWMAX:           /* WME: CWmax */
2338         case IEEE80211_IOC_WME_AIFS:            /* WME: AIFS */
2339         case IEEE80211_IOC_WME_TXOPLIMIT:       /* WME: txops limit */
2340         case IEEE80211_IOC_WME_ACM:             /* WME: ACM (bss only) */
2341         case IEEE80211_IOC_WME_ACKPOLICY:       /* WME: ACK policy (bss only) */
2342                 error = ieee80211_ioctl_setwmeparam(ic, ireq);
2343                 break;
2344         case IEEE80211_IOC_DTIM_PERIOD:
2345                 if (ic->ic_opmode != IEEE80211_M_HOSTAP &&
2346                     ic->ic_opmode != IEEE80211_M_IBSS)
2347                         return EINVAL;
2348                 if (IEEE80211_DTIM_MIN <= ireq->i_val &&
2349                     ireq->i_val <= IEEE80211_DTIM_MAX) {
2350                         ic->ic_dtim_period = ireq->i_val;
2351                         error = ENETRESET;              /* requires restart */
2352                 } else
2353                         error = EINVAL;
2354                 break;
2355         case IEEE80211_IOC_BEACON_INTERVAL:
2356                 if (ic->ic_opmode != IEEE80211_M_HOSTAP &&
2357                     ic->ic_opmode != IEEE80211_M_IBSS)
2358                         return EINVAL;
2359                 if (IEEE80211_BINTVAL_MIN <= ireq->i_val &&
2360                     ireq->i_val <= IEEE80211_BINTVAL_MAX) {
2361                         ic->ic_bintval = ireq->i_val;
2362                         error = ENETRESET;              /* requires restart */
2363                 } else
2364                         error = EINVAL;
2365                 break;
2366         case IEEE80211_IOC_PUREG:
2367                 if (ireq->i_val)
2368                         ic->ic_flags |= IEEE80211_F_PUREG;
2369                 else
2370                         ic->ic_flags &= ~IEEE80211_F_PUREG;
2371                 /* NB: reset only if we're operating on an 11g channel */
2372                 if (ic->ic_curmode == IEEE80211_MODE_11G)
2373                         error = ENETRESET;
2374                 break;
2375         case IEEE80211_IOC_MCAST_RATE:
2376                 ic->ic_mcast_rate = ireq->i_val & IEEE80211_RATE_VAL;
2377                 break;
2378         case IEEE80211_IOC_FRAGTHRESHOLD:
2379                 if ((ic->ic_caps & IEEE80211_C_TXFRAG) == 0 &&
2380                     ireq->i_val != IEEE80211_FRAG_MAX)
2381                         return EINVAL;
2382                 if (!(IEEE80211_FRAG_MIN <= ireq->i_val &&
2383                       ireq->i_val <= IEEE80211_FRAG_MAX))
2384                         return EINVAL;
2385                 ic->ic_fragthreshold = ireq->i_val;
2386                 error = IS_UP(ic) ? ic->ic_reset(ic->ic_ifp) : 0;
2387                 break;
2388         case IEEE80211_IOC_BURST:
2389                 if (ireq->i_val) {
2390                         if ((ic->ic_caps & IEEE80211_C_BURST) == 0)
2391                                 return EINVAL;
2392                         ic->ic_flags |= IEEE80211_F_BURST;
2393                 } else
2394                         ic->ic_flags &= ~IEEE80211_F_BURST;
2395                 error = ENETRESET;              /* XXX maybe not for station? */
2396                 break;
2397         default:
2398                 error = EINVAL;
2399                 break;
2400         }
2401         if (error == ENETRESET && !IS_UP_AUTO(ic))
2402                 error = 0;
2403         return error;
2404 }
2405
2406 int
2407 ieee80211_ioctl(struct ieee80211com *ic, u_long cmd, caddr_t data)
2408 {
2409         struct ifnet *ifp = ic->ic_ifp;
2410         int error = 0;
2411         struct ifreq *ifr;
2412         struct ifaddr *ifa;                     /* XXX */
2413
2414         switch (cmd) {
2415         case SIOCSIFMEDIA:
2416         case SIOCGIFMEDIA:
2417                 error = ifmedia_ioctl(ifp, (struct ifreq *) data,
2418                                 &ic->ic_media, cmd);
2419                 break;
2420         case SIOCG80211:
2421                 error = ieee80211_ioctl_get80211(ic, cmd,
2422                                 (struct ieee80211req *) data);
2423                 break;
2424         case SIOCS80211:
2425                 error = suser(curthread);
2426                 if (error == 0)
2427                         error = ieee80211_ioctl_set80211(ic, cmd,
2428                                         (struct ieee80211req *) data);
2429                 break;
2430         case SIOCGIFGENERIC:
2431                 error = ieee80211_cfgget(ic, cmd, data);
2432                 break;
2433         case SIOCSIFGENERIC:
2434                 error = suser(curthread);
2435                 if (error)
2436                         break;
2437                 error = ieee80211_cfgset(ic, cmd, data);
2438                 break;
2439         case SIOCG80211STATS:
2440                 ifr = (struct ifreq *)data;
2441                 copyout(&ic->ic_stats, ifr->ifr_data, sizeof (ic->ic_stats));
2442                 break;
2443         case SIOCSIFMTU:
2444                 ifr = (struct ifreq *)data;
2445                 if (!(IEEE80211_MTU_MIN <= ifr->ifr_mtu &&
2446                     ifr->ifr_mtu <= IEEE80211_MTU_MAX))
2447                         error = EINVAL;
2448                 else
2449                         ifp->if_mtu = ifr->ifr_mtu;
2450                 break;
2451         case SIOCSIFADDR:
2452                 /*
2453                  * XXX Handle this directly so we can supress if_init calls.
2454                  * XXX This should be done in ether_ioctl but for the moment
2455                  * XXX there are too many other parts of the system that
2456                  * XXX set IFF_UP and so supress if_init being called when
2457                  * XXX it should be.
2458                  */
2459                 ifa = (struct ifaddr *) data;
2460                 switch (ifa->ifa_addr->sa_family) {
2461 #ifdef INET
2462                 case AF_INET:
2463                         if ((ifp->if_flags & IFF_UP) == 0) {
2464                                 ifp->if_flags |= IFF_UP;
2465                                 ifp->if_init(ifp->if_softc);
2466                         }
2467                         arp_ifinit(ifp, ifa);
2468                         break;
2469 #endif
2470 #ifdef IPX
2471                 /*
2472                  * XXX - This code is probably wrong,
2473                  *       but has been copied many times.
2474                  */
2475                 case AF_IPX: {
2476                         struct ipx_addr *ina = &(IA_SIPX(ifa)->sipx_addr);
2477
2478                         if (ipx_nullhost(*ina))
2479                                 ina->x_host = *(union ipx_host *)
2480                                     IF_LLADDR(ifp);
2481                         else
2482                                 bcopy((caddr_t) ina->x_host.c_host,
2483                                       (caddr_t) IF_LLADDR(ifp),
2484                                       ETHER_ADDR_LEN);
2485                         /* fall thru... */
2486                 }
2487 #endif
2488                 default:
2489                         if ((ifp->if_flags & IFF_UP) == 0) {
2490                                 ifp->if_flags |= IFF_UP;
2491                                 ifp->if_init(ifp->if_softc);
2492                         }
2493                         break;
2494                 }
2495                 break;
2496         default:
2497                 error = ether_ioctl(ifp, cmd, data);
2498                 break;
2499         }
2500         return error;
2501 }