sys/dev/netif/awi/awi_wicfg.c

   1 /*      $NetBSD: awi_wicfg.c,v 1.3 2000/07/06 17:22:25 onoe Exp $       */
   2 /* $FreeBSD: src/sys/dev/awi/awi_wicfg.c,v 1.3.2.2 2002/06/18 08:06:15 jhay Exp $ */
   3 /* $DragonFly: src/sys/dev/netif/awi/Attic/awi_wicfg.c,v 1.2 2003/06/17 04:28:22 dillon Exp $ */
   4
   5 /*
   6  * Copyright (c) 2000 The NetBSD Foundation, Inc.
   7  * All rights reserved.
   8  *
   9  * This code is derived from software contributed to The NetBSD Foundation
  10  * by Atsushi Onoe.
  11  *
  12  * Redistribution and use in source and binary forms, with or without
  13  * modification, are permitted provided that the following conditions
  14  * are met:
  15  * 1. Redistributions of source code must retain the above copyright
  16  *    notice, this list of conditions and the following disclaimer.
  17  * 2. Redistributions in binary form must reproduce the above copyright
  18  *    notice, this list of conditions and the following disclaimer in the
  19  *    documentation and/or other materials provided with the distribution.
  20  * 3. All advertising materials mentioning features or use of this software
  21  *    must display the following acknowledgement:
  22  *      This product includes software developed by the NetBSD
  23  *      Foundation, Inc. and its contributors.
  24  * 4. Neither the name of The NetBSD Foundation nor the names of its
  25  *    contributors may be used to endorse or promote products derived
  26  *    from this software without specific prior written permission.
  27  *
  28  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  29  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  30  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  31  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  32  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  33  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  34  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  35  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  36  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  37  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  38  * POSSIBILITY OF SUCH DAMAGE.
  39  */
  40
  41 /*
  42  * WaveLAN compatible configuration support routines for the awi driver.
  43  */
  44
  45 #include <sys/param.h>
  46 #include <sys/systm.h>
  47 #include <sys/kernel.h>
  48 #include <sys/mbuf.h>
  49 #include <sys/malloc.h>
  50 #include <sys/proc.h>
  51 #include <sys/socket.h>
  52 #include <sys/errno.h>
  53 #include <sys/sockio.h>
  54 #if defined(__FreeBSD__) && __FreeBSD__ >= 4
  55 #include <sys/bus.h>
  56 #else
  57 #include <sys/device.h>
  58 #endif
  59
  60 #include <net/if.h>
  61 #include <net/if_dl.h>
  62 #ifdef __FreeBSD__
  63 #include <net/ethernet.h>
  64 #include <net/if_arp.h>
  65 #else
  66 #include <net/if_ether.h>
  67 #endif
  68 #include <net/if_media.h>
  69 #include <net/if_ieee80211.h>
  70
  71 #include <machine/cpu.h>
  72 #include <machine/bus.h>
  73 #ifdef __FreeBSD__
  74 #include <machine/clock.h>
  75 #endif
  76
  77 #ifdef __NetBSD__
  78 #include <dev/ic/am79c930reg.h>
  79 #include <dev/ic/am79c930var.h>
  80 #include <dev/ic/awireg.h>
  81 #include <dev/ic/awivar.h>
  82
  83 #include <dev/pcmcia/if_wi_ieee.h>      /* XXX */
  84 #endif
  85 #ifdef __FreeBSD__
  86 #include <dev/awi/am79c930reg.h>
  87 #include <dev/awi/am79c930var.h>
  88
  89 #undef  _KERNEL         /* XXX */
  90 #include <dev/wi/if_wavelan_ieee.h>     /* XXX */
  91 #define _KERNEL         /* XXX */
  92 #include <dev/awi/awireg.h>
  93 #include <dev/awi/awivar.h>
  94 #endif
  95
  96 static int awi_cfgget __P((struct ifnet *ifp, u_long cmd, caddr_t data));
  97 static int awi_cfgset __P((struct ifnet *ifp, u_long cmd, caddr_t data));
  98
  99 int
 100 awi_wicfg(ifp, cmd, data)
 101         struct ifnet *ifp;
 102         u_long cmd;
 103         caddr_t data;
 104 {
 105         int error;
 106
 107         switch (cmd) {
 108         case SIOCGWAVELAN:
 109                 error = awi_cfgget(ifp, cmd, data);
 110                 break;
 111         case SIOCSWAVELAN:
 112 #ifdef __FreeBSD__
 113                 error = suser(curproc);
 114 #else
 115                 error = suser(curproc->p_ucred, &curproc->p_acflag);
 116 #endif
 117                 if (error)
 118                         break;
 119                 error = awi_cfgset(ifp, cmd, data);
 120                 break;
 121         default:
 122                 error = EINVAL;
 123                 break;
 124         }
 125         return error;
 126 }
 127
 128 static int
 129 awi_cfgget(ifp, cmd, data)
 130         struct ifnet *ifp;
 131         u_long cmd;
 132         caddr_t data;
 133 {
 134         int i, error, keylen;
 135         char *p;
 136         struct awi_softc *sc = (struct awi_softc *)ifp->if_softc;
 137         struct ifreq *ifr = (struct ifreq *)data;
 138         struct wi_ltv_keys *keys;
 139         struct wi_key *k;
 140         struct wi_req wreq;
 141 #ifdef WICACHE
 142         struct wi_sigcache wsc;
 143         struct awi_bss *bp;
 144 #endif /* WICACHE */
 145
 146         error = copyin(ifr->ifr_data, &wreq, sizeof(wreq));
 147         if (error)
 148                 return error;
 149         switch (wreq.wi_type) {
 150         case WI_RID_SERIALNO:
 151                 memcpy(wreq.wi_val, sc->sc_banner, AWI_BANNER_LEN);
 152                 wreq.wi_len = (AWI_BANNER_LEN + 1) / 2;
 153                 break;
 154         case WI_RID_NODENAME:
 155                 strcpy((char *)&wreq.wi_val[1], hostname);
 156                 wreq.wi_val[0] = strlen(hostname);
 157                 wreq.wi_len = (1 + wreq.wi_val[0] + 1) / 2;
 158                 break;
 159         case WI_RID_OWN_SSID:
 160                 p = sc->sc_ownssid;
 161                 wreq.wi_val[0] = p[1];
 162                 memcpy(&wreq.wi_val[1], p + 2, p[1]);
 163                 wreq.wi_len = (1 + wreq.wi_val[0] + 1) / 2;
 164                 break;
 165         case WI_RID_CURRENT_SSID:
 166                 if (ifp->if_flags & IFF_RUNNING) {
 167                         p = sc->sc_bss.essid;
 168                         wreq.wi_val[0] = p[1];
 169                         memcpy(&wreq.wi_val[1], p + 2, p[1]);
 170                 } else {
 171                         wreq.wi_val[0] = 0;
 172                         wreq.wi_val[1] = '\0';
 173                 }
 174                 wreq.wi_len = (1 + wreq.wi_val[0] + 1) / 2;
 175                 break;
 176         case WI_RID_DESIRED_SSID:
 177                 p = sc->sc_mib_mac.aDesired_ESS_ID;
 178                 wreq.wi_val[0] = p[1];
 179                 memcpy(&wreq.wi_val[1], p + 2, p[1]);
 180                 wreq.wi_len = (1 + wreq.wi_val[0] + 1) / 2;
 181                 break;
 182         case WI_RID_CURRENT_BSSID:
 183                 if (ifp->if_flags & IFF_RUNNING)
 184                         memcpy(wreq.wi_val, sc->sc_bss.bssid, ETHER_ADDR_LEN);
 185                 else
 186                         memset(wreq.wi_val, 0, ETHER_ADDR_LEN);
 187                 wreq.wi_len = ETHER_ADDR_LEN / 2;
 188                 break;
 189         case WI_RID_CHANNEL_LIST:
 190                 if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH) {
 191                         wreq.wi_val[0] = sc->sc_scan_min;
 192                         wreq.wi_val[1] = sc->sc_scan_max;
 193                         wreq.wi_len = 2;
 194                 } else {
 195                         wreq.wi_val[0] = 0;
 196                         for (i = sc->sc_scan_min; i <= sc->sc_scan_max; i++)
 197                                 wreq.wi_val[0] |= 1 << (i - 1);
 198                         wreq.wi_len = 1;
 199                 }
 200                 break;
 201         case WI_RID_OWN_CHNL:
 202                 wreq.wi_val[0] = sc->sc_ownch;
 203                 wreq.wi_len = 1;
 204                 break;
 205         case WI_RID_CURRENT_CHAN:
 206                 if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH)
 207                         wreq.wi_val[0] = sc->sc_bss.pattern;
 208                 else
 209                         wreq.wi_val[0] = sc->sc_bss.chanset;
 210                 wreq.wi_len = 1;
 211                 break;
 212         case WI_RID_COMMS_QUALITY:
 213                 wreq.wi_val[0] = 0;                     /* quality */
 214                 wreq.wi_val[1] = sc->sc_bss.rssi;       /* signal */
 215                 wreq.wi_val[2] = 0;                     /* noise */
 216                 wreq.wi_len = 3;
 217                 break;
 218         case WI_RID_PROMISC:
 219                 wreq.wi_val[0] = sc->sc_mib_mac.aPromiscuous_Enable;
 220                 wreq.wi_len = 1;
 221                 break;
 222         case WI_RID_PORTTYPE:
 223                 if (sc->sc_mib_local.Network_Mode)
 224                         wreq.wi_val[0] = 1;
 225                 else if (!sc->sc_no_bssid)
 226                         wreq.wi_val[0] = 2;
 227                 else
 228                         wreq.wi_val[0] = 3;
 229                 wreq.wi_len = 1;
 230                 break;
 231         case WI_RID_MAC_NODE:
 232                 memcpy(wreq.wi_val, sc->sc_mib_addr.aMAC_Address,
 233                     ETHER_ADDR_LEN);
 234                 wreq.wi_len = ETHER_ADDR_LEN / 2;
 235                 break;
 236         case WI_RID_TX_RATE:
 237         case WI_RID_CUR_TX_RATE:
 238                 wreq.wi_val[0] = sc->sc_tx_rate / 10;
 239                 wreq.wi_len = 1;
 240                 break;
 241         case WI_RID_RTS_THRESH:
 242                 wreq.wi_val[0] = LE_READ_2(&sc->sc_mib_mac.aRTS_Threshold);
 243                 wreq.wi_len = 1;
 244                 break;
 245         case WI_RID_CREATE_IBSS:
 246                 wreq.wi_val[0] = sc->sc_start_bss;
 247                 wreq.wi_len = 1;
 248                 break;
 249         case WI_RID_SYSTEM_SCALE:
 250                 wreq.wi_val[0] = 1;     /* low density ... not supported */
 251                 wreq.wi_len = 1;
 252                 break;
 253         case WI_RID_PM_ENABLED:
 254                 wreq.wi_val[0] = sc->sc_mib_local.Power_Saving_Mode_Dis ? 0 : 1;
 255                 wreq.wi_len = 1;
 256                 break;
 257         case WI_RID_MAX_SLEEP:
 258                 wreq.wi_val[0] = 0;     /* not implemented */
 259                 wreq.wi_len = 1;
 260                 break;
 261         case WI_RID_WEP_AVAIL:
 262                 wreq.wi_val[0] = 1;
 263                 wreq.wi_len = 1;
 264                 break;
 265         case WI_RID_ENCRYPTION:
 266                 wreq.wi_val[0] = awi_wep_getalgo(sc);
 267                 wreq.wi_len = 1;
 268                 break;
 269         case WI_RID_TX_CRYPT_KEY:
 270                 wreq.wi_val[0] = sc->sc_wep_defkid;
 271                 wreq.wi_len = 1;
 272                 break;
 273         case WI_RID_DEFLT_CRYPT_KEYS:
 274                 keys = (struct wi_ltv_keys *)&wreq;
 275                 /* do not show keys to non-root user */
 276 #ifdef __FreeBSD__
 277                 error = suser(curproc);
 278 #else
 279                 error = suser(curproc->p_ucred, &curproc->p_acflag);
 280 #endif
 281                 if (error) {
 282                         memset(keys, 0, sizeof(*keys));
 283                         error = 0;
 284                         break;
 285                 }
 286                 for (i = 0; i < IEEE80211_WEP_NKID; i++) {
 287                         k = &keys->wi_keys[i];
 288                         keylen = sizeof(k->wi_keydat);
 289                         error = awi_wep_getkey(sc, i, k->wi_keydat, &keylen);
 290                         if (error)
 291                                 break;
 292                         k->wi_keylen = keylen;
 293                 }
 294                 wreq.wi_len = sizeof(*keys) / 2;
 295                 break;
 296         case WI_RID_MAX_DATALEN:
 297                 wreq.wi_val[0] = LE_READ_2(&sc->sc_mib_mac.aMax_Frame_Length);
 298                 wreq.wi_len = 1;
 299                 break;
 300         case WI_RID_IFACE_STATS:
 301                 /* not implemented yet */
 302                 wreq.wi_len = 0;
 303                 break;
 304 #ifdef WICACHE
 305         case WI_RID_READ_CACHE:
 306                 for (bp = TAILQ_FIRST(&sc->sc_scan), i = 0;
 307                     bp != NULL && i < MAXWICACHE;
 308                     bp = TAILQ_NEXT(bp, list), i++) {
 309                         memcpy(wsc.macsrc, bp->esrc, ETHER_ADDR_LEN);
 310                         /*XXX*/
 311                         memcpy(&wsc.ipsrc, bp->bssid, sizeof(wsc.ipsrc));
 312                         wsc.signal = bp->rssi;
 313                         wsc.noise = 0;
 314                         wsc.quality = 0;
 315                         memcpy((caddr_t)wreq.wi_val + sizeof(wsc) * i,
 316                             &wsc, sizeof(wsc));
 317                 }
 318                 wreq.wi_len = sizeof(wsc) * i / 2;
 319                 break;
 320 #endif /* WICACHE */
 321         default:
 322                 error = EINVAL;
 323                 break;
 324         }
 325         if (error == 0) {
 326                 wreq.wi_len++;
 327                 error = copyout(&wreq, ifr->ifr_data, sizeof(wreq));
 328         }
 329         return error;
 330 }
 331
 332 static int
 333 awi_cfgset(ifp, cmd, data)
 334         struct ifnet *ifp;
 335         u_long cmd;
 336         caddr_t data;
 337 {
 338         int i, error, rate, oregion;
 339         u_int8_t *phy_rates;
 340         struct awi_softc *sc = (struct awi_softc *)ifp->if_softc;
 341         struct ifreq *ifr = (struct ifreq *)data;
 342         struct wi_ltv_keys *keys;
 343         struct wi_key *k;
 344         struct wi_req wreq;
 345
 346         error = copyin(ifr->ifr_data, &wreq, sizeof(wreq));
 347         if (error)
 348                 return error;
 349         if (wreq.wi_len-- < 1)
 350                 return EINVAL;
 351         switch (wreq.wi_type) {
 352         case WI_RID_SERIALNO:
 353         case WI_RID_NODENAME:
 354                 error = EPERM;
 355                 break;
 356         case WI_RID_OWN_SSID:
 357                 if (wreq.wi_len < (1 + wreq.wi_val[0] + 1) / 2) {
 358                         error = EINVAL;
 359                         break;
 360                 }
 361                 if (wreq.wi_val[0] > IEEE80211_NWID_LEN) {
 362                         error = EINVAL;
 363                         break;
 364                 }
 365                 memset(sc->sc_ownssid, 0, AWI_ESS_ID_SIZE);
 366                 sc->sc_ownssid[0] = IEEE80211_ELEMID_SSID;
 367                 sc->sc_ownssid[1] = wreq.wi_val[0];
 368                 memcpy(&sc->sc_ownssid[2], &wreq.wi_val[1], wreq.wi_val[0]);
 369                 if (!sc->sc_mib_local.Network_Mode &&
 370                     !sc->sc_no_bssid && sc->sc_start_bss)
 371                         error = ENETRESET;
 372                 break;
 373         case WI_RID_CURRENT_SSID:
 374                 error = EPERM;
 375                 break;
 376         case WI_RID_DESIRED_SSID:
 377                 if (wreq.wi_len < (1 + wreq.wi_val[0] + 1) / 2) {
 378                         error = EINVAL;
 379                         break;
 380                 }
 381                 if (wreq.wi_val[0] > IEEE80211_NWID_LEN) {
 382                         error = EINVAL;
 383                         break;
 384                 }
 385                 memset(sc->sc_mib_mac.aDesired_ESS_ID, 0, AWI_ESS_ID_SIZE);
 386                 sc->sc_mib_mac.aDesired_ESS_ID[0] = IEEE80211_ELEMID_SSID;
 387                 sc->sc_mib_mac.aDesired_ESS_ID[1] = wreq.wi_val[0];
 388                 memcpy(&sc->sc_mib_mac.aDesired_ESS_ID[2], &wreq.wi_val[1],
 389                     wreq.wi_val[0]);
 390                 if (sc->sc_mib_local.Network_Mode || !sc->sc_no_bssid)
 391                         error = ENETRESET;
 392                 break;
 393         case WI_RID_CURRENT_BSSID:
 394                 error = EPERM;
 395                 break;
 396         case WI_RID_CHANNEL_LIST:
 397                 if (wreq.wi_len != 1) {
 398                         error = EINVAL;
 399                         break;
 400                 }
 401                 oregion = sc->sc_mib_phy.aCurrent_Reg_Domain;
 402                 if (wreq.wi_val[0] == oregion)
 403                         break;
 404                 sc->sc_mib_phy.aCurrent_Reg_Domain = wreq.wi_val[0];
 405                 error = awi_init_region(sc);
 406                 if (error) {
 407                         sc->sc_mib_phy.aCurrent_Reg_Domain = oregion;
 408                         break;
 409                 }
 410                 error = ENETRESET;
 411                 break;
 412         case WI_RID_OWN_CHNL:
 413                 if (wreq.wi_len != 1) {
 414                         error = EINVAL;
 415                         break;
 416                 }
 417                 if (wreq.wi_val[0] < sc->sc_scan_min ||
 418                     wreq.wi_val[0] > sc->sc_scan_max) {
 419                         error = EINVAL;
 420                         break;
 421                 }
 422                 sc->sc_ownch = wreq.wi_val[0];
 423                 if (!sc->sc_mib_local.Network_Mode)
 424                         error = ENETRESET;
 425                 break;
 426         case WI_RID_CURRENT_CHAN:
 427                 error = EPERM;
 428                 break;
 429         case WI_RID_COMMS_QUALITY:
 430                 error = EPERM;
 431                 break;
 432         case WI_RID_PROMISC:
 433                 if (wreq.wi_len != 1) {
 434                         error = EINVAL;
 435                         break;
 436                 }
 437                 if (ifp->if_flags & IFF_PROMISC) {
 438                         if (wreq.wi_val[0] == 0) {
 439                                 ifp->if_flags &= ~IFF_PROMISC;
 440                                 error = ENETRESET;
 441                         }
 442                 } else {
 443                         if (wreq.wi_val[0] != 0) {
 444                                 ifp->if_flags |= IFF_PROMISC;
 445                                 error = ENETRESET;
 446                         }
 447                 }
 448                 break;
 449         case WI_RID_PORTTYPE:
 450                 if (wreq.wi_len != 1) {
 451                         error = EINVAL;
 452                         break;
 453                 }
 454                 switch (wreq.wi_val[0]) {
 455                 case 1:
 456                         sc->sc_mib_local.Network_Mode = 1;
 457                         sc->sc_no_bssid = 0;
 458                         error = ENETRESET;
 459                         break;
 460                 case 2:
 461                         sc->sc_mib_local.Network_Mode = 0;
 462                         sc->sc_no_bssid = 0;
 463                         error = ENETRESET;
 464                         break;
 465                 case 3:
 466                         if (sc->sc_mib_phy.IEEE_PHY_Type == AWI_PHY_TYPE_FH) {
 467                                 error = EINVAL;
 468                                 break;
 469                         }
 470                         sc->sc_mib_local.Network_Mode = 0;
 471                         sc->sc_no_bssid = 1;
 472                         error = ENETRESET;
 473                         break;
 474                 default:
 475                         error = EINVAL;
 476                         break;
 477                 }
 478                 break;
 479         case WI_RID_MAC_NODE:
 480                 /* XXX: should be implemented? */
 481                 error = EPERM;
 482                 break;
 483         case WI_RID_TX_RATE:
 484                 if (wreq.wi_len != 1) {
 485                         error = EINVAL;
 486                         break;
 487                 }
 488                 phy_rates = sc->sc_mib_phy.aSuprt_Data_Rates;
 489                 switch (wreq.wi_val[0]) {
 490                 case 1:
 491                 case 2:
 492                 case 5:
 493                 case 11:
 494                         rate = wreq.wi_val[0] * 10;
 495                         if (rate == 50)
 496                                 rate += 5;      /*XXX*/
 497                         break;
 498                 case 3:
 499                 case 6:
 500                 case 7:
 501                         /* auto rate */
 502                         phy_rates = sc->sc_mib_phy.aSuprt_Data_Rates;
 503                         rate = AWI_RATE_1MBIT;
 504                         for (i = 0; i < phy_rates[1]; i++) {
 505                                 if (AWI_80211_RATE(phy_rates[2 + i]) > rate)
 506                                         rate = AWI_80211_RATE(phy_rates[2 + i]);
 507                         }
 508                         break;
 509                 default:
 510                         rate = 0;
 511                         error = EINVAL;
 512                         break;
 513                 }
 514                 if (error)
 515                         break;
 516                 for (i = 0; i < phy_rates[1]; i++) {
 517                         if (rate == AWI_80211_RATE(phy_rates[2 + i]))
 518                                 break;
 519                 }
 520                 if (i == phy_rates[1]) {
 521                         error = EINVAL;
 522                         break;
 523                 }
 524                 sc->sc_tx_rate = rate;
 525                 break;
 526         case WI_RID_CUR_TX_RATE:
 527                 error = EPERM;
 528                 break;
 529         case WI_RID_RTS_THRESH:
 530                 if (wreq.wi_len != 1) {
 531                         error = EINVAL;
 532                         break;
 533                 }
 534                 LE_WRITE_2(&sc->sc_mib_mac.aRTS_Threshold, wreq.wi_val[0]);
 535                 error = ENETRESET;
 536                 break;
 537         case WI_RID_CREATE_IBSS:
 538                 if (wreq.wi_len != 1) {
 539                         error = EINVAL;
 540                         break;
 541                 }
 542                 sc->sc_start_bss = wreq.wi_val[0] ? 1 : 0;
 543                 error = ENETRESET;
 544                 break;
 545         case WI_RID_SYSTEM_SCALE:
 546                 if (wreq.wi_len != 1) {
 547                         error = EINVAL;
 548                         break;
 549                 }
 550                 if (wreq.wi_val[0] != 1)
 551                         error = EINVAL;         /* not supported */
 552                 break;
 553         case WI_RID_PM_ENABLED:
 554                 if (wreq.wi_len != 1) {
 555                         error = EINVAL;
 556                         break;
 557                 }
 558                 if (wreq.wi_val[0] != 0)
 559                         error = EINVAL;         /* not implemented */
 560                 break;
 561         case WI_RID_MAX_SLEEP:
 562                 error = EINVAL;         /* not implemented */
 563                 break;
 564         case WI_RID_WEP_AVAIL:
 565                 error = EPERM;
 566                 break;
 567         case WI_RID_ENCRYPTION:
 568                 if (wreq.wi_len != 1) {
 569                         error = EINVAL;
 570                         break;
 571                 }
 572                 error = awi_wep_setalgo(sc, wreq.wi_val[0]);
 573                 if (error)
 574                         break;
 575                 error = ENETRESET;
 576                 break;
 577         case WI_RID_TX_CRYPT_KEY:
 578                 if (wreq.wi_len != 1) {
 579                         error = EINVAL;
 580                         break;
 581                 }
 582                 if (wreq.wi_val[0] >= IEEE80211_WEP_NKID) {
 583                         error = EINVAL;
 584                         break;
 585                 }
 586                 sc->sc_wep_defkid = wreq.wi_val[1];
 587                 break;
 588         case WI_RID_DEFLT_CRYPT_KEYS:
 589                 if (wreq.wi_len != sizeof(*keys) / 2) {
 590                         error = EINVAL;
 591                         break;
 592                 }
 593                 keys = (struct wi_ltv_keys *)&wreq;
 594                 for (i = 0; i < IEEE80211_WEP_NKID; i++) {
 595                         k = &keys->wi_keys[i];
 596                         error = awi_wep_setkey(sc, i, k->wi_keydat,
 597                             k->wi_keylen);
 598                         if (error)
 599                                 break;
 600                 }
 601                 break;
 602         case WI_RID_MAX_DATALEN:
 603                 if (wreq.wi_len != 1) {
 604                         error = EINVAL;
 605                         break;
 606                 }
 607                 if (wreq.wi_val[0] < 350 || wreq.wi_val[0] > 2304) {
 608                         error = EINVAL;
 609                         break;
 610                 }
 611                 LE_WRITE_2(&sc->sc_mib_mac.aMax_Frame_Length, wreq.wi_val[0]);
 612                 break;
 613         case WI_RID_IFACE_STATS:
 614                 error = EPERM;
 615                 break;
 616         default:
 617                 error = EINVAL;
 618                 break;
 619         }
 620         if (error == ENETRESET) {
 621                 if (sc->sc_enabled) {
 622                         awi_stop(sc);
 623                         error = awi_init(sc);
 624                 } else
 625                         error = 0;
 626         }
 627         return error;
 628 }