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         u_int ielen = 0;
 980
 981         memset(sr, 0, sizeof(*sr));
 982         sr->isr_ssid_len = ni->ni_esslen;
 983         if (ni->ni_wpa_ie != NULL)
 984                 ielen += 2+ni->ni_wpa_ie[1];
 985         if (ni->ni_wme_ie != NULL)
 986                 ielen += 2+ni->ni_wme_ie[1];
 987
 988         /*
 989          * The value sr->isr_ie_len is defined as a uint8_t, so we
 990          * need to be careful to avoid an integer overflow.  If the
 991          * value would overflow, we will set isr_ie_len to zero, and
 992          * ieee80211_ioctl_getscanresults (below) will avoid copying
 993          * the (overflowing) data.
 994          */
 995         if (ielen > 255)
 996                 ielen = 0;
 997         sr->isr_ie_len = ielen;
 998         sr->isr_len = sizeof(*sr) + sr->isr_ssid_len + sr->isr_ie_len;
 999         sr->isr_len = roundup(sr->isr_len, sizeof(u_int32_t));
1000         if (ni->ni_chan != IEEE80211_CHAN_ANYC) {
1001                 sr->isr_freq = ni->ni_chan->ic_freq;
1002                 sr->isr_flags = ni->ni_chan->ic_flags;
1003         }
1004         sr->isr_rssi = ic->ic_node_getrssi(ni);
1005         sr->isr_intval = ni->ni_intval;
1006         sr->isr_capinfo = ni->ni_capinfo;
1007         sr->isr_erp = ni->ni_erp;
1008         IEEE80211_ADDR_COPY(sr->isr_bssid, ni->ni_bssid);
1009         sr->isr_nrates = ni->ni_rates.rs_nrates;
1010         if (sr->isr_nrates > 15)
1011                 sr->isr_nrates = 15;
1012         memcpy(sr->isr_rates, ni->ni_rates.rs_rates, sr->isr_nrates);
1013 }
1014
1015 static int
1016 ieee80211_ioctl_getscanresults(struct ieee80211com *ic, struct ieee80211req *ireq)
1017 {
1018         union {
1019                 struct ieee80211req_scan_result res;
1020                 char data[512];         /* XXX shrink? */
1021         } u;
1022         struct ieee80211req_scan_result *sr = &u.res;
1023         struct ieee80211_node_table *nt;
1024         struct ieee80211_node *ni;
1025         int error, space;
1026         u_int8_t *p, *cp;
1027
1028         p = ireq->i_data;
1029         space = ireq->i_len;
1030         error = 0;
1031         /* XXX locking */
1032         nt =  &ic->ic_scan;
1033         TAILQ_FOREACH(ni, &nt->nt_node, ni_list) {
1034                 /* NB: skip pre-scan node state */
1035                 if (ni->ni_chan == IEEE80211_CHAN_ANYC)
1036                         continue;
1037                 get_scan_result(sr, ni);
1038                 if (sr->isr_len > sizeof(u))
1039                         continue;               /* XXX */
1040                 if (space < sr->isr_len)
1041                         break;
1042                 cp = (u_int8_t *)(sr+1);
1043                 memcpy(cp, ni->ni_essid, ni->ni_esslen);
1044                 cp += ni->ni_esslen;
1045                 if (sr->isr_ie_len > 0 && ni->ni_wpa_ie != NULL) {
1046                         memcpy(cp, ni->ni_wpa_ie, 2+ni->ni_wpa_ie[1]);
1047                         cp += 2+ni->ni_wpa_ie[1];
1048                 }
1049                 if (sr->isr_ie_len > 0 && ni->ni_wme_ie != NULL) {
1050                         memcpy(cp, ni->ni_wme_ie, 2+ni->ni_wme_ie[1]);
1051                         cp += 2+ni->ni_wme_ie[1];
1052                 }
1053                 error = copyout(sr, p, sr->isr_len);
1054                 if (error)
1055                         break;
1056                 p += sr->isr_len;
1057                 space -= sr->isr_len;
1058         }
1059         ireq->i_len -= space;
1060         return error;
1061 }
1062
1063 struct stainforeq {
1064         struct ieee80211com *ic;
1065         struct ieee80211req_sta_info *si;
1066         size_t  space;
1067 };
1068
1069 static size_t
1070 sta_space(const struct ieee80211_node *ni, size_t *ielen)
1071 {
1072         *ielen = 0;
1073         if (ni->ni_wpa_ie != NULL)
1074                 *ielen += 2+ni->ni_wpa_ie[1];
1075         if (ni->ni_wme_ie != NULL)
1076                 *ielen += 2+ni->ni_wme_ie[1];
1077         return roundup(sizeof(struct ieee80211req_sta_info) + *ielen,
1078                       sizeof(u_int32_t));
1079 }
1080
1081 static void
1082 get_sta_space(void *arg, struct ieee80211_node *ni)
1083 {
1084         struct stainforeq *req = arg;
1085         struct ieee80211com *ic = ni->ni_ic;
1086         size_t ielen;
1087
1088         if (ic->ic_opmode == IEEE80211_M_HOSTAP &&
1089             ni->ni_associd == 0)        /* only associated stations */
1090                 return;
1091         req->space += sta_space(ni, &ielen);
1092 }
1093
1094 static void
1095 get_sta_info(void *arg, struct ieee80211_node *ni)
1096 {
1097         struct stainforeq *req = arg;
1098         struct ieee80211com *ic = ni->ni_ic;
1099         struct ieee80211req_sta_info *si;
1100         size_t ielen, len;
1101         u_int8_t *cp;
1102
1103         if (ic->ic_opmode == IEEE80211_M_HOSTAP &&
1104             ni->ni_associd == 0)        /* only associated stations */
1105                 return;
1106         if (ni->ni_chan == IEEE80211_CHAN_ANYC) /* XXX bogus entry */
1107                 return;
1108         len = sta_space(ni, &ielen);
1109         if (len > req->space)
1110                 return;
1111         si = req->si;
1112         si->isi_len = len;
1113         si->isi_ie_len = ielen;
1114         si->isi_freq = ni->ni_chan->ic_freq;
1115         si->isi_flags = ni->ni_chan->ic_flags;
1116         si->isi_state = ni->ni_flags;
1117         si->isi_authmode = ni->ni_authmode;
1118         si->isi_rssi = ic->ic_node_getrssi(ni);
1119         si->isi_capinfo = ni->ni_capinfo;
1120         si->isi_erp = ni->ni_erp;
1121         IEEE80211_ADDR_COPY(si->isi_macaddr, ni->ni_macaddr);
1122         si->isi_nrates = ni->ni_rates.rs_nrates;
1123         if (si->isi_nrates > 15)
1124                 si->isi_nrates = 15;
1125         memcpy(si->isi_rates, ni->ni_rates.rs_rates, si->isi_nrates);
1126         si->isi_txrate = ni->ni_txrate;
1127         si->isi_associd = ni->ni_associd;
1128         si->isi_txpower = ni->ni_txpower;
1129         si->isi_vlan = ni->ni_vlan;
1130         if (ni->ni_flags & IEEE80211_NODE_QOS) {
1131                 memcpy(si->isi_txseqs, ni->ni_txseqs, sizeof(ni->ni_txseqs));
1132                 memcpy(si->isi_rxseqs, ni->ni_rxseqs, sizeof(ni->ni_rxseqs));
1133         } else {
1134                 si->isi_txseqs[0] = ni->ni_txseqs[0];
1135                 si->isi_rxseqs[0] = ni->ni_rxseqs[0];
1136         }
1137         /* NB: leave all cases in case we relax ni_associd == 0 check */
1138         if (ieee80211_node_is_authorized(ni))
1139                 si->isi_inact = ic->ic_inact_run;
1140         else if (ni->ni_associd != 0)
1141                 si->isi_inact = ic->ic_inact_auth;
1142         else
1143                 si->isi_inact = ic->ic_inact_init;
1144         si->isi_inact = (si->isi_inact - ni->ni_inact) * IEEE80211_INACT_WAIT;
1145
1146         cp = (u_int8_t *)(si+1);
1147         if (ni->ni_wpa_ie != NULL) {
1148                 memcpy(cp, ni->ni_wpa_ie, 2+ni->ni_wpa_ie[1]);
1149                 cp += 2+ni->ni_wpa_ie[1];
1150         }
1151         if (ni->ni_wme_ie != NULL) {
1152                 memcpy(cp, ni->ni_wme_ie, 2+ni->ni_wme_ie[1]);
1153                 cp += 2+ni->ni_wme_ie[1];
1154         }
1155
1156         req->si = (struct ieee80211req_sta_info *)(((u_int8_t *)si) + len);
1157         req->space -= len;
1158 }
1159
1160 static int
1161 ieee80211_ioctl_getstainfo(struct ieee80211com *ic, struct ieee80211req *ireq)
1162 {
1163         struct stainforeq req;
1164         int error;
1165
1166         if (ireq->i_len < sizeof(struct stainforeq))
1167                 return EFAULT;
1168
1169         error = 0;
1170         req.space = 0;
1171         ieee80211_iterate_nodes(&ic->ic_sta, get_sta_space, &req);
1172         if (req.space > ireq->i_len)
1173                 req.space = ireq->i_len;
1174         if (req.space > 0) {
1175                 size_t space;
1176                 void *p;
1177
1178                 space = req.space;
1179                 /* XXX M_WAITOK after driver lock released */
1180                 MALLOC(p, void *, space, M_TEMP, M_NOWAIT);
1181                 if (p == NULL)
1182                         return ENOMEM;
1183                 req.si = p;
1184                 ieee80211_iterate_nodes(&ic->ic_sta, get_sta_info, &req);
1185                 ireq->i_len = space - req.space;
1186                 error = copyout(p, ireq->i_data, ireq->i_len);
1187                 FREE(p, M_TEMP);
1188         } else
1189                 ireq->i_len = 0;
1190
1191         return error;
1192 }
1193
1194 static int
1195 ieee80211_ioctl_getstatxpow(struct ieee80211com *ic, struct ieee80211req *ireq)
1196 {
1197         struct ieee80211_node *ni;
1198         struct ieee80211req_sta_txpow txpow;
1199         int error;
1200
1201         if (ireq->i_len != sizeof(txpow))
1202                 return EINVAL;
1203         error = copyin(ireq->i_data, &txpow, sizeof(txpow));
1204         if (error != 0)
1205                 return error;
1206         ni = ieee80211_find_node(&ic->ic_sta, txpow.it_macaddr);
1207         if (ni == NULL)
1208                 return EINVAL;          /* XXX */
1209         txpow.it_txpow = ni->ni_txpower;
1210         error = copyout(&txpow, ireq->i_data, sizeof(txpow));
1211         ieee80211_free_node(ni);
1212         return error;
1213 }
1214
1215 static int
1216 ieee80211_ioctl_getwmeparam(struct ieee80211com *ic, struct ieee80211req *ireq)
1217 {
1218         struct ieee80211_wme_state *wme = &ic->ic_wme;
1219         struct wmeParams *wmep;
1220         int ac;
1221
1222         if ((ic->ic_caps & IEEE80211_C_WME) == 0)
1223                 return EINVAL;
1224
1225         ac = (ireq->i_len & IEEE80211_WMEPARAM_VAL);
1226         if (ac >= WME_NUM_AC)
1227                 ac = WME_AC_BE;
1228         if (ireq->i_len & IEEE80211_WMEPARAM_BSS)
1229                 wmep = &wme->wme_wmeBssChanParams.cap_wmeParams[ac];
1230         else
1231                 wmep = &wme->wme_wmeChanParams.cap_wmeParams[ac];
1232         switch (ireq->i_type) {
1233         case IEEE80211_IOC_WME_CWMIN:           /* WME: CWmin */
1234                 ireq->i_val = wmep->wmep_logcwmin;
1235                 break;
1236         case IEEE80211_IOC_WME_CWMAX:           /* WME: CWmax */
1237                 ireq->i_val = wmep->wmep_logcwmax;
1238                 break;
1239         case IEEE80211_IOC_WME_AIFS:            /* WME: AIFS */
1240                 ireq->i_val = wmep->wmep_aifsn;
1241                 break;
1242         case IEEE80211_IOC_WME_TXOPLIMIT:       /* WME: txops limit */
1243                 ireq->i_val = wmep->wmep_txopLimit;
1244                 break;
1245         case IEEE80211_IOC_WME_ACM:             /* WME: ACM (bss only) */
1246                 wmep = &wme->wme_wmeBssChanParams.cap_wmeParams[ac];
1247                 ireq->i_val = wmep->wmep_acm;
1248                 break;
1249         case IEEE80211_IOC_WME_ACKPOLICY:       /* WME: ACK policy (!bss only)*/
1250                 wmep = &wme->wme_wmeChanParams.cap_wmeParams[ac];
1251                 ireq->i_val = !wmep->wmep_noackPolicy;
1252                 break;
1253         }
1254         return 0;
1255 }
1256
1257 static int
1258 ieee80211_ioctl_getmaccmd(struct ieee80211com *ic, struct ieee80211req *ireq)
1259 {
1260         const struct ieee80211_aclator *acl = ic->ic_acl;
1261
1262         return (acl == NULL ? EINVAL : acl->iac_getioctl(ic, ireq));
1263 }
1264
1265 /*
1266  * When building the kernel with -O2 on the i386 architecture, gcc
1267  * seems to want to inline this function into ieee80211_ioctl()
1268  * (which is the only routine that calls it). When this happens,
1269  * ieee80211_ioctl() ends up consuming an additional 2K of stack
1270  * space. (Exactly why it needs so much is unclear.) The problem
1271  * is that it's possible for ieee80211_ioctl() to invoke other
1272  * routines (including driver init functions) which could then find
1273  * themselves perilously close to exhausting the stack.
1274  *
1275  * To avoid this, we deliberately prevent gcc from inlining this
1276  * routine. Another way to avoid this is to use less agressive
1277  * optimization when compiling this file (i.e. -O instead of -O2)
1278  * but special-casing the compilation of this one module in the
1279  * build system would be awkward.
1280  */
1281 #ifdef __GNUC__
1282 __attribute__ ((noinline))
1283 #endif
1284 static int
1285 ieee80211_ioctl_get80211(struct ieee80211com *ic, u_long cmd, struct ieee80211req *ireq)
1286 {
1287         const struct ieee80211_rsnparms *rsn = &ic->ic_bss->ni_rsn;
1288         int error = 0;
1289         u_int kid, len, m;
1290         u_int8_t tmpkey[IEEE80211_KEYBUF_SIZE];
1291         char tmpssid[IEEE80211_NWID_LEN];
1292
1293         switch (ireq->i_type) {
1294         case IEEE80211_IOC_SSID:
1295                 switch (ic->ic_state) {
1296                 case IEEE80211_S_INIT:
1297                 case IEEE80211_S_SCAN:
1298                         ireq->i_len = ic->ic_des_esslen;
1299                         memcpy(tmpssid, ic->ic_des_essid, ireq->i_len);
1300                         break;
1301                 default:
1302                         ireq->i_len = ic->ic_bss->ni_esslen;
1303                         memcpy(tmpssid, ic->ic_bss->ni_essid,
1304                                 ireq->i_len);
1305                         break;
1306                 }
1307                 error = copyout(tmpssid, ireq->i_data, ireq->i_len);
1308                 break;
1309         case IEEE80211_IOC_NUMSSIDS:
1310                 ireq->i_val = 1;
1311                 break;
1312         case IEEE80211_IOC_WEP:
1313                 if ((ic->ic_flags & IEEE80211_F_PRIVACY) == 0)
1314                         ireq->i_val = IEEE80211_WEP_OFF;
1315                 else if (ic->ic_flags & IEEE80211_F_DROPUNENC)
1316                         ireq->i_val = IEEE80211_WEP_ON;
1317                 else
1318                         ireq->i_val = IEEE80211_WEP_MIXED;
1319                 break;
1320         case IEEE80211_IOC_WEPKEY:
1321                 kid = (u_int) ireq->i_val;
1322                 if (kid >= IEEE80211_WEP_NKID)
1323                         return EINVAL;
1324                 len = (u_int) ic->ic_nw_keys[kid].wk_keylen;
1325                 /* NB: only root can read WEP keys */
1326                 if (suser(curthread) == 0) {
1327                         bcopy(ic->ic_nw_keys[kid].wk_key, tmpkey, len);
1328                 } else {
1329                         bzero(tmpkey, len);
1330                 }
1331                 ireq->i_len = len;
1332                 error = copyout(tmpkey, ireq->i_data, len);
1333                 break;
1334         case IEEE80211_IOC_NUMWEPKEYS:
1335                 ireq->i_val = IEEE80211_WEP_NKID;
1336                 break;
1337         case IEEE80211_IOC_WEPTXKEY:
1338                 ireq->i_val = ic->ic_def_txkey;
1339                 break;
1340         case IEEE80211_IOC_AUTHMODE:
1341                 if (ic->ic_flags & IEEE80211_F_WPA)
1342                         ireq->i_val = IEEE80211_AUTH_WPA;
1343                 else
1344                         ireq->i_val = ic->ic_bss->ni_authmode;
1345                 break;
1346         case IEEE80211_IOC_CHANNEL:
1347                 ireq->i_val = ieee80211_chan2ieee(ic, ic->ic_curchan);
1348                 break;
1349         case IEEE80211_IOC_POWERSAVE:
1350                 if (ic->ic_flags & IEEE80211_F_PMGTON)
1351                         ireq->i_val = IEEE80211_POWERSAVE_ON;
1352                 else
1353                         ireq->i_val = IEEE80211_POWERSAVE_OFF;
1354                 break;
1355         case IEEE80211_IOC_POWERSAVESLEEP:
1356                 ireq->i_val = ic->ic_lintval;
1357                 break;
1358         case IEEE80211_IOC_RTSTHRESHOLD:
1359                 ireq->i_val = ic->ic_rtsthreshold;
1360                 break;
1361         case IEEE80211_IOC_PROTMODE:
1362                 ireq->i_val = ic->ic_protmode;
1363                 break;
1364         case IEEE80211_IOC_TXPOWER:
1365                 if ((ic->ic_caps & IEEE80211_C_TXPMGT) == 0)
1366                         return EINVAL;
1367                 ireq->i_val = ic->ic_txpowlimit;
1368                 break;
1369         case IEEE80211_IOC_MCASTCIPHER:
1370                 ireq->i_val = rsn->rsn_mcastcipher;
1371                 break;
1372         case IEEE80211_IOC_MCASTKEYLEN:
1373                 ireq->i_val = rsn->rsn_mcastkeylen;
1374                 break;
1375         case IEEE80211_IOC_UCASTCIPHERS:
1376                 ireq->i_val = 0;
1377                 for (m = 0x1; m != 0; m <<= 1)
1378                         if (rsn->rsn_ucastcipherset & m)
1379                                 ireq->i_val |= 1<<cap2cipher(m);
1380                 break;
1381         case IEEE80211_IOC_UCASTCIPHER:
1382                 ireq->i_val = rsn->rsn_ucastcipher;
1383                 break;
1384         case IEEE80211_IOC_UCASTKEYLEN:
1385                 ireq->i_val = rsn->rsn_ucastkeylen;
1386                 break;
1387         case IEEE80211_IOC_KEYMGTALGS:
1388                 ireq->i_val = rsn->rsn_keymgmtset;
1389                 break;
1390         case IEEE80211_IOC_RSNCAPS:
1391                 ireq->i_val = rsn->rsn_caps;
1392                 break;
1393         case IEEE80211_IOC_WPA:
1394                 switch (ic->ic_flags & IEEE80211_F_WPA) {
1395                 case IEEE80211_F_WPA1:
1396                         ireq->i_val = 1;
1397                         break;
1398                 case IEEE80211_F_WPA2:
1399                         ireq->i_val = 2;
1400                         break;
1401                 case IEEE80211_F_WPA1 | IEEE80211_F_WPA2:
1402                         ireq->i_val = 3;
1403                         break;
1404                 default:
1405                         ireq->i_val = 0;
1406                         break;
1407                 }
1408                 break;
1409         case IEEE80211_IOC_CHANLIST:
1410                 error = ieee80211_ioctl_getchanlist(ic, ireq);
1411                 break;
1412         case IEEE80211_IOC_ROAMING:
1413                 ireq->i_val = ic->ic_roaming;
1414                 break;
1415         case IEEE80211_IOC_PRIVACY:
1416                 ireq->i_val = (ic->ic_flags & IEEE80211_F_PRIVACY) != 0;
1417                 break;
1418         case IEEE80211_IOC_DROPUNENCRYPTED:
1419                 ireq->i_val = (ic->ic_flags & IEEE80211_F_DROPUNENC) != 0;
1420                 break;
1421         case IEEE80211_IOC_COUNTERMEASURES:
1422                 ireq->i_val = (ic->ic_flags & IEEE80211_F_COUNTERM) != 0;
1423                 break;
1424         case IEEE80211_IOC_DRIVER_CAPS:
1425                 ireq->i_val = ic->ic_caps>>16;
1426                 ireq->i_len = ic->ic_caps&0xffff;
1427                 break;
1428         case IEEE80211_IOC_WME:
1429                 ireq->i_val = (ic->ic_flags & IEEE80211_F_WME) != 0;
1430                 break;
1431         case IEEE80211_IOC_HIDESSID:
1432                 ireq->i_val = (ic->ic_flags & IEEE80211_F_HIDESSID) != 0;
1433                 break;
1434         case IEEE80211_IOC_APBRIDGE:
1435                 ireq->i_val = (ic->ic_flags & IEEE80211_F_NOBRIDGE) == 0;
1436                 break;
1437         case IEEE80211_IOC_OPTIE:
1438                 if (ic->ic_opt_ie == NULL)
1439                         return EINVAL;
1440                 /* NB: truncate, caller can check length */
1441                 if (ireq->i_len > ic->ic_opt_ie_len)
1442                         ireq->i_len = ic->ic_opt_ie_len;
1443                 error = copyout(ic->ic_opt_ie, ireq->i_data, ireq->i_len);
1444                 break;
1445         case IEEE80211_IOC_WPAKEY:
1446                 error = ieee80211_ioctl_getkey(ic, ireq);
1447                 break;
1448         case IEEE80211_IOC_CHANINFO:
1449                 error = ieee80211_ioctl_getchaninfo(ic, ireq);
1450                 break;
1451         case IEEE80211_IOC_BSSID:
1452                 if (ireq->i_len != IEEE80211_ADDR_LEN)
1453                         return EINVAL;
1454                 error = copyout(ic->ic_state == IEEE80211_S_RUN ?
1455                                         ic->ic_bss->ni_bssid :
1456                                         ic->ic_des_bssid,
1457                                 ireq->i_data, ireq->i_len);
1458                 break;
1459         case IEEE80211_IOC_WPAIE:
1460                 error = ieee80211_ioctl_getwpaie(ic, ireq);
1461                 break;
1462         case IEEE80211_IOC_SCAN_RESULTS:
1463                 error = ieee80211_ioctl_getscanresults(ic, ireq);
1464                 break;
1465         case IEEE80211_IOC_STA_STATS:
1466                 error = ieee80211_ioctl_getstastats(ic, ireq);
1467                 break;
1468         case IEEE80211_IOC_TXPOWMAX:
1469                 ireq->i_val = ic->ic_bss->ni_txpower;
1470                 break;
1471         case IEEE80211_IOC_STA_TXPOW:
1472                 error = ieee80211_ioctl_getstatxpow(ic, ireq);
1473                 break;
1474         case IEEE80211_IOC_STA_INFO:
1475                 error = ieee80211_ioctl_getstainfo(ic, ireq);
1476                 break;
1477         case IEEE80211_IOC_WME_CWMIN:           /* WME: CWmin */
1478         case IEEE80211_IOC_WME_CWMAX:           /* WME: CWmax */
1479         case IEEE80211_IOC_WME_AIFS:            /* WME: AIFS */
1480         case IEEE80211_IOC_WME_TXOPLIMIT:       /* WME: txops limit */
1481         case IEEE80211_IOC_WME_ACM:             /* WME: ACM (bss only) */
1482         case IEEE80211_IOC_WME_ACKPOLICY:       /* WME: ACK policy (bss only) */
1483                 error = ieee80211_ioctl_getwmeparam(ic, ireq);
1484                 break;
1485         case IEEE80211_IOC_DTIM_PERIOD:
1486                 ireq->i_val = ic->ic_dtim_period;
1487                 break;
1488         case IEEE80211_IOC_BEACON_INTERVAL:
1489                 /* NB: get from ic_bss for station mode */
1490                 ireq->i_val = ic->ic_bss->ni_intval;
1491                 break;
1492         case IEEE80211_IOC_PUREG:
1493                 ireq->i_val = (ic->ic_flags & IEEE80211_F_PUREG) != 0;
1494                 break;
1495         case IEEE80211_IOC_MCAST_RATE:
1496                 ireq->i_val = ic->ic_mcast_rate;
1497                 break;
1498         case IEEE80211_IOC_FRAGTHRESHOLD:
1499                 ireq->i_val = ic->ic_fragthreshold;
1500                 break;
1501         case IEEE80211_IOC_MACCMD:
1502                 error = ieee80211_ioctl_getmaccmd(ic, ireq);
1503                 break;
1504         case IEEE80211_IOC_BURST:
1505                 ireq->i_val = (ic->ic_flags & IEEE80211_F_BURST) != 0;
1506                 break;
1507         default:
1508                 error = EINVAL;
1509                 break;
1510         }
1511         return error;
1512 }
1513
1514 static int
1515 ieee80211_ioctl_setoptie(struct ieee80211com *ic, struct ieee80211req *ireq)
1516 {
1517         int error;
1518         void *ie;
1519
1520         /*
1521          * NB: Doing this for ap operation could be useful (e.g. for
1522          *     WPA and/or WME) except that it typically is worthless
1523          *     without being able to intervene when processing
1524          *     association response frames--so disallow it for now.
1525          */
1526         if (ic->ic_opmode != IEEE80211_M_STA)
1527                 return EINVAL;
1528         if (ireq->i_len > IEEE80211_MAX_OPT_IE)
1529                 return EINVAL;
1530         MALLOC(ie, void *, ireq->i_len, M_DEVBUF, M_NOWAIT);
1531         if (ie == NULL)
1532                 return ENOMEM;
1533         error = copyin(ireq->i_data, ie, ireq->i_len);
1534         /* XXX sanity check data? */
1535         if (ic->ic_opt_ie != NULL)
1536                 FREE(ic->ic_opt_ie, M_DEVBUF);
1537         ic->ic_opt_ie = ie;
1538         ic->ic_opt_ie_len = ireq->i_len;
1539         return 0;
1540 }
1541
1542 static int
1543 ieee80211_ioctl_setkey(struct ieee80211com *ic, struct ieee80211req *ireq)
1544 {
1545         struct ieee80211req_key ik;
1546         struct ieee80211_node *ni;
1547         struct ieee80211_key *wk;
1548         u_int16_t kid;
1549         int error;
1550
1551         if (ireq->i_len != sizeof(ik))
1552                 return EINVAL;
1553         error = copyin(ireq->i_data, &ik, sizeof(ik));
1554         if (error)
1555                 return error;
1556         /* NB: cipher support is verified by ieee80211_crypt_newkey */
1557         /* NB: this also checks ik->ik_keylen > sizeof(wk->wk_key) */
1558         if (ik.ik_keylen > sizeof(ik.ik_keydata))
1559                 return E2BIG;
1560         kid = ik.ik_keyix;
1561         if (kid == IEEE80211_KEYIX_NONE) {
1562                 /* XXX unicast keys currently must be tx/rx */
1563                 if (ik.ik_flags != (IEEE80211_KEY_XMIT | IEEE80211_KEY_RECV))
1564                         return EINVAL;
1565                 if (ic->ic_opmode == IEEE80211_M_STA) {
1566                         ni = ieee80211_ref_node(ic->ic_bss);
1567                         if (!IEEE80211_ADDR_EQ(ik.ik_macaddr, ni->ni_bssid)) {
1568                                 ieee80211_free_node(ni);
1569                                 return EADDRNOTAVAIL;
1570                         }
1571                 } else {
1572                         ni = ieee80211_find_node(&ic->ic_sta, ik.ik_macaddr);
1573                         if (ni == NULL)
1574                                 return ENOENT;
1575                 }
1576                 wk = &ni->ni_ucastkey;
1577         } else {
1578                 if (kid >= IEEE80211_WEP_NKID)
1579                         return EINVAL;
1580                 wk = &ic->ic_nw_keys[kid];
1581                 ni = NULL;
1582         }
1583         error = 0;
1584         ieee80211_key_update_begin(ic);
1585         if (ieee80211_crypto_newkey(ic, ik.ik_type, ik.ik_flags, wk)) {
1586                 wk->wk_keylen = ik.ik_keylen;
1587                 /* NB: MIC presence is implied by cipher type */
1588                 if (wk->wk_keylen > IEEE80211_KEYBUF_SIZE)
1589                         wk->wk_keylen = IEEE80211_KEYBUF_SIZE;
1590                 wk->wk_keyrsc = ik.ik_keyrsc;
1591                 wk->wk_keytsc = 0;                      /* new key, reset */
1592                 memset(wk->wk_key, 0, sizeof(wk->wk_key));
1593                 memcpy(wk->wk_key, ik.ik_keydata, ik.ik_keylen);
1594                 if (!ieee80211_crypto_setkey(ic, wk,
1595                     ni != NULL ? ni->ni_macaddr : ik.ik_macaddr))
1596                         error = EIO;
1597                 else if ((ik.ik_flags & IEEE80211_KEY_DEFAULT))
1598                         ic->ic_def_txkey = kid;
1599         } else
1600                 error = ENXIO;
1601         ieee80211_key_update_end(ic);
1602         if (ni != NULL)
1603                 ieee80211_free_node(ni);
1604         return error;
1605 }
1606
1607 static int
1608 ieee80211_ioctl_delkey(struct ieee80211com *ic, struct ieee80211req *ireq)
1609 {
1610         struct ieee80211req_del_key dk;
1611         int kid, error;
1612
1613         if (ireq->i_len != sizeof(dk))
1614                 return EINVAL;
1615         error = copyin(ireq->i_data, &dk, sizeof(dk));
1616         if (error)
1617                 return error;
1618         kid = dk.idk_keyix;
1619         /* XXX u_int8_t -> u_int16_t */
1620         if (dk.idk_keyix == (u_int8_t) IEEE80211_KEYIX_NONE) {
1621                 struct ieee80211_node *ni;
1622
1623                 if (ic->ic_opmode == IEEE80211_M_STA) {
1624                         ni = ieee80211_ref_node(ic->ic_bss);
1625                         if (!IEEE80211_ADDR_EQ(dk.idk_macaddr, ni->ni_bssid)) {
1626                                 ieee80211_free_node(ni);
1627                                 return EADDRNOTAVAIL;
1628                         }
1629                 } else {
1630                         ni = ieee80211_find_node(&ic->ic_sta, dk.idk_macaddr);
1631                         if (ni == NULL)
1632                                 return ENOENT;
1633                 }
1634                 /* XXX error return */
1635                 ieee80211_node_delucastkey(ni);
1636                 ieee80211_free_node(ni);
1637         } else {
1638                 if (kid >= IEEE80211_WEP_NKID)
1639                         return EINVAL;
1640                 /* XXX error return */
1641                 ieee80211_crypto_delkey(ic, &ic->ic_nw_keys[kid]);
1642         }
1643         return 0;
1644 }
1645
1646 static void
1647 domlme(void *arg, struct ieee80211_node *ni)
1648 {
1649         struct ieee80211com *ic = ni->ni_ic;
1650         struct ieee80211req_mlme *mlme = arg;
1651
1652         if (ni->ni_associd != 0) {
1653                 IEEE80211_SEND_MGMT(ic, ni,
1654                         mlme->im_op == IEEE80211_MLME_DEAUTH ?
1655                                 IEEE80211_FC0_SUBTYPE_DEAUTH :
1656                                 IEEE80211_FC0_SUBTYPE_DISASSOC,
1657                         mlme->im_reason);
1658         }
1659         ieee80211_node_leave(ic, ni);
1660 }
1661
1662 static int
1663 ieee80211_ioctl_setmlme(struct ieee80211com *ic, struct ieee80211req *ireq)
1664 {
1665         struct ieee80211req_mlme mlme;
1666         struct ieee80211_node *ni;
1667         int error;
1668
1669         if (ireq->i_len != sizeof(mlme))
1670                 return EINVAL;
1671         error = copyin(ireq->i_data, &mlme, sizeof(mlme));
1672         if (error)
1673                 return error;
1674         switch (mlme.im_op) {
1675         case IEEE80211_MLME_ASSOC:
1676                 if (ic->ic_opmode != IEEE80211_M_STA)
1677                         return EINVAL;
1678                 /* XXX must be in S_SCAN state? */
1679
1680                 if (mlme.im_ssid_len != 0) {
1681                         /*
1682                          * Desired ssid specified; must match both bssid and
1683                          * ssid to distinguish ap advertising multiple ssid's.
1684                          */
1685                         ni = ieee80211_find_node_with_ssid(&ic->ic_scan,
1686                                 mlme.im_macaddr,
1687                                 mlme.im_ssid_len, mlme.im_ssid);
1688                 } else {
1689                         /*
1690                          * Normal case; just match bssid.
1691                          */
1692                         ni = ieee80211_find_node(&ic->ic_scan, mlme.im_macaddr);
1693                 }
1694                 if (ni == NULL)
1695                         return EINVAL;
1696                 if (!ieee80211_sta_join(ic, ni)) {
1697                         ieee80211_free_node(ni);
1698                         return EINVAL;
1699                 }
1700                 break;
1701         case IEEE80211_MLME_DISASSOC:
1702         case IEEE80211_MLME_DEAUTH:
1703                 switch (ic->ic_opmode) {
1704                 case IEEE80211_M_STA:
1705                         /* XXX not quite right */
1706                         ieee80211_new_state(ic, IEEE80211_S_INIT,
1707                                 mlme.im_reason);
1708                         break;
1709                 case IEEE80211_M_HOSTAP:
1710                         /* NB: the broadcast address means do 'em all */
1711                         if (!IEEE80211_ADDR_EQ(mlme.im_macaddr, ic->ic_ifp->if_broadcastaddr)) {
1712                                 if ((ni = ieee80211_find_node(&ic->ic_sta,
1713                                                 mlme.im_macaddr)) == NULL)
1714                                         return EINVAL;
1715                                 domlme(&mlme, ni);
1716                                 ieee80211_free_node(ni);
1717                         } else {
1718                                 ieee80211_iterate_nodes(&ic->ic_sta,
1719                                                 domlme, &mlme);
1720                         }
1721                         break;
1722                 default:
1723                         return EINVAL;
1724                 }
1725                 break;
1726         case IEEE80211_MLME_AUTHORIZE:
1727         case IEEE80211_MLME_UNAUTHORIZE:
1728                 if (ic->ic_opmode != IEEE80211_M_HOSTAP)
1729                         return EINVAL;
1730                 ni = ieee80211_find_node(&ic->ic_sta, mlme.im_macaddr);
1731                 if (ni == NULL)
1732                         return EINVAL;
1733                 if (mlme.im_op == IEEE80211_MLME_AUTHORIZE)
1734                         ieee80211_node_authorize(ni);
1735                 else
1736                         ieee80211_node_unauthorize(ni);
1737                 ieee80211_free_node(ni);
1738                 break;
1739         default:
1740                 return EINVAL;
1741         }
1742         return 0;
1743 }
1744
1745 static int
1746 ieee80211_ioctl_macmac(struct ieee80211com *ic, struct ieee80211req *ireq)
1747 {
1748         u_int8_t mac[IEEE80211_ADDR_LEN];
1749         const struct ieee80211_aclator *acl = ic->ic_acl;
1750         int error;
1751
1752         if (ireq->i_len != sizeof(mac))
1753                 return EINVAL;
1754         error = copyin(ireq->i_data, mac, ireq->i_len);
1755         if (error)
1756                 return error;
1757         if (acl == NULL) {
1758                 acl = ieee80211_aclator_get("mac");
1759                 if (acl == NULL || !acl->iac_attach(ic))
1760                         return EINVAL;
1761                 ic->ic_acl = acl;
1762         }
1763         if (ireq->i_type == IEEE80211_IOC_ADDMAC)
1764                 acl->iac_add(ic, mac);
1765         else
1766                 acl->iac_remove(ic, mac);
1767         return 0;
1768 }
1769
1770 static int
1771 ieee80211_ioctl_setmaccmd(struct ieee80211com *ic, struct ieee80211req *ireq)
1772 {
1773         const struct ieee80211_aclator *acl = ic->ic_acl;
1774
1775         switch (ireq->i_val) {
1776         case IEEE80211_MACCMD_POLICY_OPEN:
1777         case IEEE80211_MACCMD_POLICY_ALLOW:
1778         case IEEE80211_MACCMD_POLICY_DENY:
1779                 if (acl == NULL) {
1780                         acl = ieee80211_aclator_get("mac");
1781                         if (acl == NULL || !acl->iac_attach(ic))
1782                                 return EINVAL;
1783                         ic->ic_acl = acl;
1784                 }
1785                 acl->iac_setpolicy(ic, ireq->i_val);
1786                 break;
1787         case IEEE80211_MACCMD_FLUSH:
1788                 if (acl != NULL)
1789                         acl->iac_flush(ic);
1790                 /* NB: silently ignore when not in use */
1791                 break;
1792         case IEEE80211_MACCMD_DETACH:
1793                 if (acl != NULL) {
1794                         ic->ic_acl = NULL;
1795                         acl->iac_detach(ic);
1796                 }
1797                 break;
1798         default:
1799                 if (acl == NULL)
1800                         return EINVAL;
1801                 else
1802                         return acl->iac_setioctl(ic, ireq);
1803         }
1804         return 0;
1805 }
1806
1807 static int
1808 ieee80211_ioctl_setchanlist(struct ieee80211com *ic, struct ieee80211req *ireq)
1809 {
1810         struct ieee80211req_chanlist list;
1811         u_char chanlist[IEEE80211_CHAN_BYTES];
1812         int i, j, error;
1813
1814         if (ireq->i_len != sizeof(list))
1815                 return EINVAL;
1816         error = copyin(ireq->i_data, &list, sizeof(list));
1817         if (error)
1818                 return error;
1819         memset(chanlist, 0, sizeof(chanlist));
1820         /*
1821          * Since channel 0 is not available for DS, channel 1
1822          * is assigned to LSB on WaveLAN.
1823          */
1824         if (ic->ic_phytype == IEEE80211_T_DS)
1825                 i = 1;
1826         else
1827                 i = 0;
1828         for (j = 0; i <= IEEE80211_CHAN_MAX; i++, j++) {
1829                 /*
1830                  * NB: silently discard unavailable channels so users
1831                  *     can specify 1-255 to get all available channels.
1832                  */
1833                 if (isset(list.ic_channels, j) && isset(ic->ic_chan_avail, i))
1834                         setbit(chanlist, i);
1835         }
1836         if (ic->ic_ibss_chan == NULL ||
1837             isclr(chanlist, ieee80211_chan2ieee(ic, ic->ic_ibss_chan))) {
1838                 for (i = 0; i <= IEEE80211_CHAN_MAX; i++)
1839                         if (isset(chanlist, i)) {
1840                                 ic->ic_ibss_chan = &ic->ic_channels[i];
1841                                 goto found;
1842                         }
1843                 return EINVAL;                  /* no active channels */
1844 found:
1845                 ;
1846         }
1847         memcpy(ic->ic_chan_active, chanlist, sizeof(ic->ic_chan_active));
1848         return IS_UP_AUTO(ic) ? ENETRESET : 0;
1849 }
1850
1851 static int
1852 ieee80211_ioctl_setstatxpow(struct ieee80211com *ic, struct ieee80211req *ireq)
1853 {
1854         struct ieee80211_node *ni;
1855         struct ieee80211req_sta_txpow txpow;
1856         int error;
1857
1858         if (ireq->i_len != sizeof(txpow))
1859                 return EINVAL;
1860         error = copyin(ireq->i_data, &txpow, sizeof(txpow));
1861         if (error != 0)
1862                 return error;
1863         ni = ieee80211_find_node(&ic->ic_sta, txpow.it_macaddr);
1864         if (ni == NULL)
1865                 return EINVAL;          /* XXX */
1866         ni->ni_txpower = txpow.it_txpow;
1867         ieee80211_free_node(ni);
1868         return error;
1869 }
1870
1871 static int
1872 ieee80211_ioctl_setwmeparam(struct ieee80211com *ic, struct ieee80211req *ireq)
1873 {
1874         struct ieee80211_wme_state *wme = &ic->ic_wme;
1875         struct wmeParams *wmep, *chanp;
1876         int isbss, ac;
1877
1878         if ((ic->ic_caps & IEEE80211_C_WME) == 0)
1879                 return EINVAL;
1880
1881         isbss = (ireq->i_len & IEEE80211_WMEPARAM_BSS);
1882         ac = (ireq->i_len & IEEE80211_WMEPARAM_VAL);
1883         if (ac >= WME_NUM_AC)
1884                 ac = WME_AC_BE;
1885         if (isbss) {
1886                 chanp = &wme->wme_bssChanParams.cap_wmeParams[ac];
1887                 wmep = &wme->wme_wmeBssChanParams.cap_wmeParams[ac];
1888         } else {
1889                 chanp = &wme->wme_chanParams.cap_wmeParams[ac];
1890                 wmep = &wme->wme_wmeChanParams.cap_wmeParams[ac];
1891         }
1892         switch (ireq->i_type) {
1893         case IEEE80211_IOC_WME_CWMIN:           /* WME: CWmin */
1894                 if (isbss) {
1895                         wmep->wmep_logcwmin = ireq->i_val;
1896                         if ((wme->wme_flags & WME_F_AGGRMODE) == 0)
1897                                 chanp->wmep_logcwmin = ireq->i_val;
1898                 } else {
1899                         wmep->wmep_logcwmin = chanp->wmep_logcwmin =
1900                                 ireq->i_val;
1901                 }
1902                 break;
1903         case IEEE80211_IOC_WME_CWMAX:           /* WME: CWmax */
1904                 if (isbss) {
1905                         wmep->wmep_logcwmax = ireq->i_val;
1906                         if ((wme->wme_flags & WME_F_AGGRMODE) == 0)
1907                                 chanp->wmep_logcwmax = ireq->i_val;
1908                 } else {
1909                         wmep->wmep_logcwmax = chanp->wmep_logcwmax =
1910                                 ireq->i_val;
1911                 }
1912                 break;
1913         case IEEE80211_IOC_WME_AIFS:            /* WME: AIFS */
1914                 if (isbss) {
1915                         wmep->wmep_aifsn = ireq->i_val;
1916                         if ((wme->wme_flags & WME_F_AGGRMODE) == 0)
1917                                 chanp->wmep_aifsn = ireq->i_val;
1918                 } else {
1919                         wmep->wmep_aifsn = chanp->wmep_aifsn = ireq->i_val;
1920                 }
1921                 break;
1922         case IEEE80211_IOC_WME_TXOPLIMIT:       /* WME: txops limit */
1923                 if (isbss) {
1924                         wmep->wmep_txopLimit = ireq->i_val;
1925                         if ((wme->wme_flags & WME_F_AGGRMODE) == 0)
1926                                 chanp->wmep_txopLimit = ireq->i_val;
1927                 } else {
1928                         wmep->wmep_txopLimit = chanp->wmep_txopLimit =
1929                                 ireq->i_val;
1930                 }
1931                 break;
1932         case IEEE80211_IOC_WME_ACM:             /* WME: ACM (bss only) */
1933                 wmep->wmep_acm = ireq->i_val;
1934                 if ((wme->wme_flags & WME_F_AGGRMODE) == 0)
1935                         chanp->wmep_acm = ireq->i_val;
1936                 break;
1937         case IEEE80211_IOC_WME_ACKPOLICY:       /* WME: ACK policy (!bss only)*/
1938                 wmep->wmep_noackPolicy = chanp->wmep_noackPolicy =
1939                         (ireq->i_val) == 0;
1940                 break;
1941         }
1942         ieee80211_wme_updateparams(ic);
1943         return 0;
1944 }
1945
1946 static int
1947 cipher2cap(int cipher)
1948 {
1949         switch (cipher) {
1950         case IEEE80211_CIPHER_WEP:      return IEEE80211_C_WEP;
1951         case IEEE80211_CIPHER_AES_OCB:  return IEEE80211_C_AES;
1952         case IEEE80211_CIPHER_AES_CCM:  return IEEE80211_C_AES_CCM;
1953         case IEEE80211_CIPHER_CKIP:     return IEEE80211_C_CKIP;
1954         case IEEE80211_CIPHER_TKIP:     return IEEE80211_C_TKIP;
1955         }
1956         return 0;
1957 }
1958
1959 static int
1960 ieee80211_ioctl_set80211(struct ieee80211com *ic, u_long cmd, struct ieee80211req *ireq)
1961 {
1962         static const u_int8_t zerobssid[IEEE80211_ADDR_LEN];
1963         struct ieee80211_rsnparms *rsn = &ic->ic_bss->ni_rsn;
1964         int error;
1965         const struct ieee80211_authenticator *auth;
1966         u_int8_t tmpkey[IEEE80211_KEYBUF_SIZE];
1967         char tmpssid[IEEE80211_NWID_LEN];
1968         u_int8_t tmpbssid[IEEE80211_ADDR_LEN];
1969         struct ieee80211_key *k;
1970         int j, caps;
1971         u_int kid;
1972
1973         error = 0;
1974         switch (ireq->i_type) {
1975         case IEEE80211_IOC_SSID:
1976                 if (ireq->i_val != 0 ||
1977                     ireq->i_len > IEEE80211_NWID_LEN)
1978                         return EINVAL;
1979                 error = copyin(ireq->i_data, tmpssid, ireq->i_len);
1980                 if (error)
1981                         break;
1982                 memset(ic->ic_des_essid, 0, IEEE80211_NWID_LEN);
1983                 ic->ic_des_esslen = ireq->i_len;
1984                 memcpy(ic->ic_des_essid, tmpssid, ireq->i_len);
1985                 error = ENETRESET;
1986                 break;
1987         case IEEE80211_IOC_WEP:
1988                 switch (ireq->i_val) {
1989                 case IEEE80211_WEP_OFF:
1990                         ic->ic_flags &= ~IEEE80211_F_PRIVACY;
1991                         ic->ic_flags &= ~IEEE80211_F_DROPUNENC;
1992                         break;
1993                 case IEEE80211_WEP_ON:
1994                         ic->ic_flags |= IEEE80211_F_PRIVACY;
1995                         ic->ic_flags |= IEEE80211_F_DROPUNENC;
1996                         break;
1997                 case IEEE80211_WEP_MIXED:
1998                         ic->ic_flags |= IEEE80211_F_PRIVACY;
1999                         ic->ic_flags &= ~IEEE80211_F_DROPUNENC;
2000                         break;
2001                 }
2002                 error = ENETRESET;
2003                 break;
2004         case IEEE80211_IOC_WEPKEY:
2005                 kid = (u_int) ireq->i_val;
2006                 if (kid >= IEEE80211_WEP_NKID)
2007                         return EINVAL;
2008                 k = &ic->ic_nw_keys[kid];
2009                 if (ireq->i_len == 0) {
2010                         /* zero-len =>'s delete any existing key */
2011                         (void) ieee80211_crypto_delkey(ic, k);
2012                         break;
2013                 }
2014                 if (ireq->i_len > sizeof(tmpkey))
2015                         return EINVAL;
2016                 memset(tmpkey, 0, sizeof(tmpkey));
2017                 error = copyin(ireq->i_data, tmpkey, ireq->i_len);
2018                 if (error)
2019                         break;
2020                 ieee80211_key_update_begin(ic);
2021                 k->wk_keyix = kid;      /* NB: force fixed key id */
2022                 if (ieee80211_crypto_newkey(ic, IEEE80211_CIPHER_WEP,
2023                     IEEE80211_KEY_XMIT | IEEE80211_KEY_RECV, k)) {
2024                         k->wk_keylen = ireq->i_len;
2025                         memcpy(k->wk_key, tmpkey, sizeof(tmpkey));
2026                         if  (!ieee80211_crypto_setkey(ic, k, ic->ic_myaddr))
2027                                 error = EINVAL;
2028                 } else
2029                         error = EINVAL;
2030                 ieee80211_key_update_end(ic);
2031                 if (!error)                     /* NB: for compatibility */
2032                         error = ENETRESET;
2033                 break;
2034         case IEEE80211_IOC_WEPTXKEY:
2035                 kid = (u_int) ireq->i_val;
2036                 if (kid >= IEEE80211_WEP_NKID &&
2037                     (u_int16_t) kid != IEEE80211_KEYIX_NONE)
2038                         return EINVAL;
2039                 ic->ic_def_txkey = kid;
2040                 error = ENETRESET;      /* push to hardware */
2041                 break;
2042         case IEEE80211_IOC_AUTHMODE:
2043                 switch (ireq->i_val) {
2044                 case IEEE80211_AUTH_WPA:
2045                 case IEEE80211_AUTH_8021X:      /* 802.1x */
2046                 case IEEE80211_AUTH_OPEN:       /* open */
2047                 case IEEE80211_AUTH_SHARED:     /* shared-key */
2048                 case IEEE80211_AUTH_AUTO:       /* auto */
2049                         auth = ieee80211_authenticator_get(ireq->i_val);
2050                         if (auth == NULL)
2051                                 return EINVAL;
2052                         break;
2053                 default:
2054                         return EINVAL;
2055                 }
2056                 switch (ireq->i_val) {
2057                 case IEEE80211_AUTH_WPA:        /* WPA w/ 802.1x */
2058                         ic->ic_flags |= IEEE80211_F_PRIVACY;
2059                         ireq->i_val = IEEE80211_AUTH_8021X;
2060                         break;
2061                 case IEEE80211_AUTH_OPEN:       /* open */
2062                         ic->ic_flags &= ~(IEEE80211_F_WPA|IEEE80211_F_PRIVACY);
2063                         break;
2064                 case IEEE80211_AUTH_SHARED:     /* shared-key */
2065                 case IEEE80211_AUTH_8021X:      /* 802.1x */
2066                         ic->ic_flags &= ~IEEE80211_F_WPA;
2067                         /* both require a key so mark the PRIVACY capability */
2068                         ic->ic_flags |= IEEE80211_F_PRIVACY;
2069                         break;
2070                 case IEEE80211_AUTH_AUTO:       /* auto */
2071                         ic->ic_flags &= ~IEEE80211_F_WPA;
2072                         /* XXX PRIVACY handling? */
2073                         /* XXX what's the right way to do this? */
2074                         break;
2075                 }
2076                 /* NB: authenticator attach/detach happens on state change */
2077                 ic->ic_bss->ni_authmode = ireq->i_val;
2078                 /* XXX mixed/mode/usage? */
2079                 ic->ic_auth = auth;
2080                 error = ENETRESET;
2081                 break;
2082         case IEEE80211_IOC_CHANNEL:
2083                 /* XXX 0xffff overflows 16-bit signed */
2084                 if (ireq->i_val == 0 ||
2085                     ireq->i_val == (int16_t) IEEE80211_CHAN_ANY)
2086                         ic->ic_des_chan = IEEE80211_CHAN_ANYC;
2087                 else if ((u_int) ireq->i_val > IEEE80211_CHAN_MAX ||
2088                     isclr(ic->ic_chan_active, ireq->i_val)) {
2089                         return EINVAL;
2090                 } else
2091                         ic->ic_ibss_chan = ic->ic_des_chan =
2092                                 &ic->ic_channels[ireq->i_val];
2093                 switch (ic->ic_state) {
2094                 case IEEE80211_S_INIT:
2095                 case IEEE80211_S_SCAN:
2096                         error = ENETRESET;
2097                         break;
2098                 default:
2099                         /*
2100                          * If the desired channel has changed (to something
2101                          * other than any) and we're not already scanning,
2102                          * then kick the state machine.
2103                          */
2104                         if (ic->ic_des_chan != IEEE80211_CHAN_ANYC &&
2105                             ic->ic_bss->ni_chan != ic->ic_des_chan &&
2106                             (ic->ic_flags & IEEE80211_F_SCAN) == 0)
2107                                 error = ENETRESET;
2108                         break;
2109                 }
2110                 if (error == ENETRESET &&
2111                         ic->ic_opmode == IEEE80211_M_MONITOR) {
2112                         if (IS_UP(ic)) {
2113                                 /*
2114                                  * Monitor mode can switch directly.
2115                                  */
2116                                 if (ic->ic_des_chan != IEEE80211_CHAN_ANYC)
2117                                         ic->ic_curchan = ic->ic_des_chan;
2118                                 error = ic->ic_reset(ic->ic_ifp);
2119                         } else
2120                                 error = 0;
2121                 }
2122                 break;
2123         case IEEE80211_IOC_POWERSAVE:
2124                 switch (ireq->i_val) {
2125                 case IEEE80211_POWERSAVE_OFF:
2126                         if (ic->ic_flags & IEEE80211_F_PMGTON) {
2127                                 ic->ic_flags &= ~IEEE80211_F_PMGTON;
2128                                 error = ENETRESET;
2129                         }
2130                         break;
2131                 case IEEE80211_POWERSAVE_ON:
2132                         if ((ic->ic_caps & IEEE80211_C_PMGT) == 0)
2133                                 error = EINVAL;
2134                         else if ((ic->ic_flags & IEEE80211_F_PMGTON) == 0) {
2135                                 ic->ic_flags |= IEEE80211_F_PMGTON;
2136                                 error = ENETRESET;
2137                         }
2138                         break;
2139                 default:
2140                         error = EINVAL;
2141                         break;
2142                 }
2143                 break;
2144         case IEEE80211_IOC_POWERSAVESLEEP:
2145                 if (ireq->i_val < 0)
2146                         return EINVAL;
2147                 ic->ic_lintval = ireq->i_val;
2148                 error = IS_UP(ic) ? ic->ic_reset(ic->ic_ifp) : 0;
2149                 break;
2150         case IEEE80211_IOC_RTSTHRESHOLD:
2151                 if (!(IEEE80211_RTS_MIN <= ireq->i_val &&
2152                       ireq->i_val <= IEEE80211_RTS_MAX))
2153                         return EINVAL;
2154                 ic->ic_rtsthreshold = ireq->i_val;
2155                 error = IS_UP(ic) ? ic->ic_reset(ic->ic_ifp) : 0;
2156                 break;
2157         case IEEE80211_IOC_PROTMODE:
2158                 if (ireq->i_val > IEEE80211_PROT_RTSCTS)
2159                         return EINVAL;
2160                 ic->ic_protmode = ireq->i_val;
2161                 /* NB: if not operating in 11g this can wait */
2162                 if (ic->ic_curmode == IEEE80211_MODE_11G)
2163                         error = IS_UP(ic) ? ic->ic_reset(ic->ic_ifp) : 0;
2164                 break;
2165         case IEEE80211_IOC_TXPOWER:
2166                 if ((ic->ic_caps & IEEE80211_C_TXPMGT) == 0)
2167                         return EINVAL;
2168                 if (!(IEEE80211_TXPOWER_MIN < ireq->i_val &&
2169                       ireq->i_val < IEEE80211_TXPOWER_MAX))
2170                         return EINVAL;
2171                 ic->ic_txpowlimit = ireq->i_val;
2172                 error = IS_UP(ic) ? ic->ic_reset(ic->ic_ifp) : 0;
2173                 break;
2174         case IEEE80211_IOC_ROAMING:
2175                 if (!(IEEE80211_ROAMING_DEVICE <= ireq->i_val &&
2176                     ireq->i_val <= IEEE80211_ROAMING_MANUAL))
2177                         return EINVAL;
2178                 ic->ic_roaming = ireq->i_val;
2179                 /* XXXX reset? */
2180                 break;
2181         case IEEE80211_IOC_PRIVACY:
2182                 if (ireq->i_val) {
2183                         /* XXX check for key state? */
2184                         ic->ic_flags |= IEEE80211_F_PRIVACY;
2185                 } else
2186                         ic->ic_flags &= ~IEEE80211_F_PRIVACY;
2187                 break;
2188         case IEEE80211_IOC_DROPUNENCRYPTED:
2189                 if (ireq->i_val)
2190                         ic->ic_flags |= IEEE80211_F_DROPUNENC;
2191                 else
2192                         ic->ic_flags &= ~IEEE80211_F_DROPUNENC;
2193                 break;
2194         case IEEE80211_IOC_WPAKEY:
2195                 error = ieee80211_ioctl_setkey(ic, ireq);
2196                 break;
2197         case IEEE80211_IOC_DELKEY:
2198                 error = ieee80211_ioctl_delkey(ic, ireq);
2199                 break;
2200         case IEEE80211_IOC_MLME:
2201                 error = ieee80211_ioctl_setmlme(ic, ireq);
2202                 break;
2203         case IEEE80211_IOC_OPTIE:
2204                 error = ieee80211_ioctl_setoptie(ic, ireq);
2205                 break;
2206         case IEEE80211_IOC_COUNTERMEASURES:
2207                 if (ireq->i_val) {
2208                         if ((ic->ic_flags & IEEE80211_F_WPA) == 0)
2209                                 return EINVAL;
2210                         ic->ic_flags |= IEEE80211_F_COUNTERM;
2211                 } else
2212                         ic->ic_flags &= ~IEEE80211_F_COUNTERM;
2213                 break;
2214         case IEEE80211_IOC_WPA:
2215                 if (ireq->i_val > 3)
2216                         return EINVAL;
2217                 /* XXX verify ciphers available */
2218                 ic->ic_flags &= ~IEEE80211_F_WPA;
2219                 switch (ireq->i_val) {
2220                 case 1:
2221                         ic->ic_flags |= IEEE80211_F_WPA1;
2222                         break;
2223                 case 2:
2224                         ic->ic_flags |= IEEE80211_F_WPA2;
2225                         break;
2226                 case 3:
2227                         ic->ic_flags |= IEEE80211_F_WPA1 | IEEE80211_F_WPA2;
2228                         break;
2229                 }
2230                 error = ENETRESET;              /* XXX? */
2231                 break;
2232         case IEEE80211_IOC_WME:
2233                 if (ireq->i_val) {
2234                         if ((ic->ic_caps & IEEE80211_C_WME) == 0)
2235                                 return EINVAL;
2236                         ic->ic_flags |= IEEE80211_F_WME;
2237                 } else
2238                         ic->ic_flags &= ~IEEE80211_F_WME;
2239                 error = ENETRESET;              /* XXX maybe not for station? */
2240                 break;
2241         case IEEE80211_IOC_HIDESSID:
2242                 if (ireq->i_val)
2243                         ic->ic_flags |= IEEE80211_F_HIDESSID;
2244                 else
2245                         ic->ic_flags &= ~IEEE80211_F_HIDESSID;
2246                 error = ENETRESET;
2247                 break;
2248         case IEEE80211_IOC_APBRIDGE:
2249                 if (ireq->i_val == 0)
2250                         ic->ic_flags |= IEEE80211_F_NOBRIDGE;
2251                 else
2252                         ic->ic_flags &= ~IEEE80211_F_NOBRIDGE;
2253                 break;
2254         case IEEE80211_IOC_MCASTCIPHER:
2255                 if ((ic->ic_caps & cipher2cap(ireq->i_val)) == 0 &&
2256                     !ieee80211_crypto_available(ireq->i_val))
2257                         return EINVAL;
2258                 rsn->rsn_mcastcipher = ireq->i_val;
2259                 error = (ic->ic_flags & IEEE80211_F_WPA) ? ENETRESET : 0;
2260                 break;
2261         case IEEE80211_IOC_MCASTKEYLEN:
2262                 if (!(0 < ireq->i_val && ireq->i_val < IEEE80211_KEYBUF_SIZE))
2263                         return EINVAL;
2264                 /* XXX no way to verify driver capability */
2265                 rsn->rsn_mcastkeylen = ireq->i_val;
2266                 error = (ic->ic_flags & IEEE80211_F_WPA) ? ENETRESET : 0;
2267                 break;
2268         case IEEE80211_IOC_UCASTCIPHERS:
2269                 /*
2270                  * Convert user-specified cipher set to the set
2271                  * we can support (via hardware or software).
2272                  * NB: this logic intentionally ignores unknown and
2273                  * unsupported ciphers so folks can specify 0xff or
2274                  * similar and get all available ciphers.
2275                  */
2276                 caps = 0;
2277                 for (j = 1; j < 32; j++)        /* NB: skip WEP */
2278                         if ((ireq->i_val & (1<<j)) &&
2279                             ((ic->ic_caps & cipher2cap(j)) ||
2280                              ieee80211_crypto_available(j)))
2281                                 caps |= 1<<j;
2282                 if (caps == 0)                  /* nothing available */
2283                         return EINVAL;
2284                 /* XXX verify ciphers ok for unicast use? */
2285                 /* XXX disallow if running as it'll have no effect */
2286                 rsn->rsn_ucastcipherset = caps;
2287                 error = (ic->ic_flags & IEEE80211_F_WPA) ? ENETRESET : 0;
2288                 break;
2289         case IEEE80211_IOC_UCASTCIPHER:
2290                 if ((rsn->rsn_ucastcipherset & cipher2cap(ireq->i_val)) == 0)
2291                         return EINVAL;
2292                 rsn->rsn_ucastcipher = ireq->i_val;
2293                 break;
2294         case IEEE80211_IOC_UCASTKEYLEN:
2295                 if (!(0 < ireq->i_val && ireq->i_val < IEEE80211_KEYBUF_SIZE))
2296                         return EINVAL;
2297                 /* XXX no way to verify driver capability */
2298                 rsn->rsn_ucastkeylen = ireq->i_val;
2299                 break;
2300         case IEEE80211_IOC_DRIVER_CAPS:
2301                 /* NB: for testing */
2302                 ic->ic_caps = (((u_int16_t) ireq->i_val) << 16) |
2303                                ((u_int16_t) ireq->i_len);
2304                 break;
2305         case IEEE80211_IOC_KEYMGTALGS:
2306                 /* XXX check */
2307                 rsn->rsn_keymgmtset = ireq->i_val;
2308                 error = (ic->ic_flags & IEEE80211_F_WPA) ? ENETRESET : 0;
2309                 break;
2310         case IEEE80211_IOC_RSNCAPS:
2311                 /* XXX check */
2312                 rsn->rsn_caps = ireq->i_val;
2313                 error = (ic->ic_flags & IEEE80211_F_WPA) ? ENETRESET : 0;
2314                 break;
2315         case IEEE80211_IOC_BSSID:
2316                 if (ireq->i_len != sizeof(tmpbssid))
2317                         return EINVAL;
2318                 error = copyin(ireq->i_data, tmpbssid, ireq->i_len);
2319                 if (error)
2320                         break;
2321                 IEEE80211_ADDR_COPY(ic->ic_des_bssid, tmpbssid);
2322                 if (IEEE80211_ADDR_EQ(ic->ic_des_bssid, zerobssid))
2323                         ic->ic_flags &= ~IEEE80211_F_DESBSSID;
2324                 else
2325                         ic->ic_flags |= IEEE80211_F_DESBSSID;
2326                 error = ENETRESET;
2327                 break;
2328         case IEEE80211_IOC_CHANLIST:
2329                 error = ieee80211_ioctl_setchanlist(ic, ireq);
2330                 break;
2331         case IEEE80211_IOC_SCAN_REQ:
2332                 if (ic->ic_opmode == IEEE80211_M_HOSTAP)        /* XXX ignore */
2333                         break;
2334                 error = ieee80211_setupscan(ic, ic->ic_chan_avail);
2335                 if (error == 0)         /* XXX background scan */
2336                         error = ieee80211_new_state(ic, IEEE80211_S_SCAN, -1);
2337                 break;
2338         case IEEE80211_IOC_ADDMAC:
2339         case IEEE80211_IOC_DELMAC:
2340                 error = ieee80211_ioctl_macmac(ic, ireq);
2341                 break;
2342         case IEEE80211_IOC_MACCMD:
2343                 error = ieee80211_ioctl_setmaccmd(ic, ireq);
2344                 break;
2345         case IEEE80211_IOC_STA_TXPOW:
2346                 error = ieee80211_ioctl_setstatxpow(ic, ireq);
2347                 break;
2348         case IEEE80211_IOC_WME_CWMIN:           /* WME: CWmin */
2349         case IEEE80211_IOC_WME_CWMAX:           /* WME: CWmax */
2350         case IEEE80211_IOC_WME_AIFS:            /* WME: AIFS */
2351         case IEEE80211_IOC_WME_TXOPLIMIT:       /* WME: txops limit */
2352         case IEEE80211_IOC_WME_ACM:             /* WME: ACM (bss only) */
2353         case IEEE80211_IOC_WME_ACKPOLICY:       /* WME: ACK policy (bss only) */
2354                 error = ieee80211_ioctl_setwmeparam(ic, ireq);
2355                 break;
2356         case IEEE80211_IOC_DTIM_PERIOD:
2357                 if (ic->ic_opmode != IEEE80211_M_HOSTAP &&
2358                     ic->ic_opmode != IEEE80211_M_IBSS)
2359                         return EINVAL;
2360                 if (IEEE80211_DTIM_MIN <= ireq->i_val &&
2361                     ireq->i_val <= IEEE80211_DTIM_MAX) {
2362                         ic->ic_dtim_period = ireq->i_val;
2363                         error = ENETRESET;              /* requires restart */
2364                 } else
2365                         error = EINVAL;
2366                 break;
2367         case IEEE80211_IOC_BEACON_INTERVAL:
2368                 if (ic->ic_opmode != IEEE80211_M_HOSTAP &&
2369                     ic->ic_opmode != IEEE80211_M_IBSS)
2370                         return EINVAL;
2371                 if (IEEE80211_BINTVAL_MIN <= ireq->i_val &&
2372                     ireq->i_val <= IEEE80211_BINTVAL_MAX) {
2373                         ic->ic_bintval = ireq->i_val;
2374                         error = ENETRESET;              /* requires restart */
2375                 } else
2376                         error = EINVAL;
2377                 break;
2378         case IEEE80211_IOC_PUREG:
2379                 if (ireq->i_val)
2380                         ic->ic_flags |= IEEE80211_F_PUREG;
2381                 else
2382                         ic->ic_flags &= ~IEEE80211_F_PUREG;
2383                 /* NB: reset only if we're operating on an 11g channel */
2384                 if (ic->ic_curmode == IEEE80211_MODE_11G)
2385                         error = ENETRESET;
2386                 break;
2387         case IEEE80211_IOC_MCAST_RATE:
2388                 ic->ic_mcast_rate = ireq->i_val & IEEE80211_RATE_VAL;
2389                 break;
2390         case IEEE80211_IOC_FRAGTHRESHOLD:
2391                 if ((ic->ic_caps & IEEE80211_C_TXFRAG) == 0 &&
2392                     ireq->i_val != IEEE80211_FRAG_MAX)
2393                         return EINVAL;
2394                 if (!(IEEE80211_FRAG_MIN <= ireq->i_val &&
2395                       ireq->i_val <= IEEE80211_FRAG_MAX))
2396                         return EINVAL;
2397                 ic->ic_fragthreshold = ireq->i_val;
2398                 error = IS_UP(ic) ? ic->ic_reset(ic->ic_ifp) : 0;
2399                 break;
2400         case IEEE80211_IOC_BURST:
2401                 if (ireq->i_val) {
2402                         if ((ic->ic_caps & IEEE80211_C_BURST) == 0)
2403                                 return EINVAL;
2404                         ic->ic_flags |= IEEE80211_F_BURST;
2405                 } else
2406                         ic->ic_flags &= ~IEEE80211_F_BURST;
2407                 error = ENETRESET;              /* XXX maybe not for station? */
2408                 break;
2409         default:
2410                 error = EINVAL;
2411                 break;
2412         }
2413         if (error == ENETRESET && !IS_UP_AUTO(ic))
2414                 error = 0;
2415         return error;
2416 }
2417
2418 int
2419 ieee80211_ioctl(struct ieee80211com *ic, u_long cmd, caddr_t data)
2420 {
2421         struct ifnet *ifp = ic->ic_ifp;
2422         int error = 0;
2423         struct ifreq *ifr;
2424         struct ifaddr *ifa;                     /* XXX */
2425
2426         switch (cmd) {
2427         case SIOCSIFMEDIA:
2428         case SIOCGIFMEDIA:
2429                 error = ifmedia_ioctl(ifp, (struct ifreq *) data,
2430                                 &ic->ic_media, cmd);
2431                 break;
2432         case SIOCG80211:
2433                 error = ieee80211_ioctl_get80211(ic, cmd,
2434                                 (struct ieee80211req *) data);
2435                 break;
2436         case SIOCS80211:
2437                 error = suser(curthread);
2438                 if (error == 0)
2439                         error = ieee80211_ioctl_set80211(ic, cmd,
2440                                         (struct ieee80211req *) data);
2441                 break;
2442         case SIOCGIFGENERIC:
2443                 error = ieee80211_cfgget(ic, cmd, data);
2444                 break;
2445         case SIOCSIFGENERIC:
2446                 error = suser(curthread);
2447                 if (error)
2448                         break;
2449                 error = ieee80211_cfgset(ic, cmd, data);
2450                 break;
2451         case SIOCG80211STATS:
2452                 ifr = (struct ifreq *)data;
2453                 copyout(&ic->ic_stats, ifr->ifr_data, sizeof (ic->ic_stats));
2454                 break;
2455         case SIOCSIFMTU:
2456                 ifr = (struct ifreq *)data;
2457                 if (!(IEEE80211_MTU_MIN <= ifr->ifr_mtu &&
2458                     ifr->ifr_mtu <= IEEE80211_MTU_MAX))
2459                         error = EINVAL;
2460                 else
2461                         ifp->if_mtu = ifr->ifr_mtu;
2462                 break;
2463         case SIOCSIFADDR:
2464                 /*
2465                  * XXX Handle this directly so we can supress if_init calls.
2466                  * XXX This should be done in ether_ioctl but for the moment
2467                  * XXX there are too many other parts of the system that
2468                  * XXX set IFF_UP and so supress if_init being called when
2469                  * XXX it should be.
2470                  */
2471                 ifa = (struct ifaddr *) data;
2472                 switch (ifa->ifa_addr->sa_family) {
2473 #ifdef INET
2474                 case AF_INET:
2475                         if ((ifp->if_flags & IFF_UP) == 0) {
2476                                 ifp->if_flags |= IFF_UP;
2477                                 ifp->if_init(ifp->if_softc);
2478                         }
2479                         arp_ifinit(ifp, ifa);
2480                         break;
2481 #endif
2482 #ifdef IPX
2483                 /*
2484                  * XXX - This code is probably wrong,
2485                  *       but has been copied many times.
2486                  */
2487                 case AF_IPX: {
2488                         struct ipx_addr *ina = &(IA_SIPX(ifa)->sipx_addr);
2489
2490                         if (ipx_nullhost(*ina))
2491                                 ina->x_host = *(union ipx_host *)
2492                                     IF_LLADDR(ifp);
2493                         else
2494                                 bcopy((caddr_t) ina->x_host.c_host,
2495                                       (caddr_t) IF_LLADDR(ifp),
2496                                       ETHER_ADDR_LEN);
2497                         /* fall thru... */
2498                 }
2499 #endif
2500                 default:
2501                         if ((ifp->if_flags & IFF_UP) == 0) {
2502                                 ifp->if_flags |= IFF_UP;
2503                                 ifp->if_init(ifp->if_softc);
2504                         }
2505                         break;
2506                 }
2507                 break;
2508         default:
2509                 error = ether_ioctl(ifp, cmd, data);
2510                 break;
2511         }
2512         return error;
2513 }