openwrt/package/openwrt/wlcompat.c

   1 /*
   2  * wlcompat.c
   3  *
   4  * Copyright (C) 2005 Mike Baker,
   5  *                    Felix Fietkau <nbd@vd-s.ath.cx>
   6  *
   7  * This program is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU General Public License
   9  * as published by the Free Software Foundation; either version 2
  10  * of the License, or (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, write to the Free Software
  19  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  20  *
  21  * $Id$
  22  */
  23
  24
  25 #include <linux/config.h>
  26 #include <linux/module.h>
  27 #include <linux/init.h>
  28 #include <linux/if_arp.h>
  29 #include <asm/uaccess.h>
  30 #include <linux/wireless.h>
  31
  32 #include <net/iw_handler.h>
  33 #include <wlioctl.h>
  34
  35 static struct net_device *dev;
  36 char buf[WLC_IOCTL_MAXLEN];
  37
  38 /* The frequency of each channel in MHz */
  39 const long channel_frequency[] = {
  40         2412, 2417, 2422, 2427, 2432, 2437, 2442,
  41         2447, 2452, 2457, 2462, 2467, 2472, 2484
  42 };
  43 #define NUM_CHANNELS ( sizeof(channel_frequency) / sizeof(channel_frequency[0]) )
  44
  45 static int wlcompat_private_ioctl(struct net_device *dev,
  46                          struct iw_request_info *info,
  47                          union iwreq_data *wrqu,
  48                          char *extra);
  49
  50 static int wl_ioctl(struct net_device *dev, int cmd, void *buf, int len)
  51 {
  52         mm_segment_t old_fs = get_fs();
  53         struct ifreq ifr;
  54         int ret;
  55         wl_ioctl_t ioc;
  56         ioc.cmd = cmd;
  57         ioc.buf = buf;
  58         ioc.len = len;
  59         strncpy(ifr.ifr_name, dev->name, IFNAMSIZ);
  60         ifr.ifr_data = (caddr_t) &ioc;
  61         set_fs(KERNEL_DS);
  62         ret = dev->do_ioctl(dev,&ifr,SIOCDEVPRIVATE);
  63         set_fs (old_fs);
  64         return ret;
  65 }
  66
  67 static int wl_set_val(struct net_device *dev, char *var, void *val, int len)
  68 {
  69         char buf[128];
  70         int buf_len;
  71
  72         /* check for overflow */
  73         if ((buf_len = strlen(var)) + 1 + len > sizeof(buf))
  74                 return -1;
  75
  76         strcpy(buf, var);
  77         buf_len += 1;
  78
  79         /* append int value onto the end of the name string */
  80         memcpy(&buf[buf_len], val, len);
  81         buf_len += len;
  82
  83         return wl_ioctl(dev, WLC_SET_VAR, buf, buf_len);
  84 }
  85
  86 static int wl_get_val(struct net_device *dev, char *var, void *val, int len)
  87 {
  88         char buf[128];
  89         int ret;
  90
  91         /* check for overflow */
  92         if (strlen(var) + 1 > sizeof(buf) || len > sizeof(buf))
  93                 return -1;
  94
  95         strcpy(buf, var);
  96         if ((ret = wl_ioctl(dev, WLC_GET_VAR, buf, sizeof(buf))))
  97                 return ret;
  98
  99         memcpy(val, buf, len);
 100         return 0;
 101 }
 102
 103
 104 static int wlcompat_ioctl_getiwrange(struct net_device *dev,
 105                                     char *extra)
 106 {
 107         int i, k;
 108         struct iw_range *range;
 109
 110         range = (struct iw_range *) extra;
 111
 112         range->we_version_compiled = WIRELESS_EXT;
 113         range->we_version_source = WIRELESS_EXT;
 114
 115         range->min_nwid = range->max_nwid = 0;
 116
 117         range->num_channels = NUM_CHANNELS;
 118         k = 0;
 119         for (i = 0; i < NUM_CHANNELS; i++) {
 120                 range->freq[k].i = i + 1;
 121                 range->freq[k].m = channel_frequency[i] * 100000;
 122                 range->freq[k].e = 1;
 123                 k++;
 124                 if (k >= IW_MAX_FREQUENCIES)
 125                         break;
 126         }
 127         range->num_frequency = k;
 128         range->sensitivity = 3;
 129
 130         /* nbd: don't know what this means, but other drivers set it this way */
 131         range->pmp_flags = IW_POWER_PERIOD;
 132         range->pmt_flags = IW_POWER_TIMEOUT;
 133         range->pm_capa = IW_POWER_PERIOD | IW_POWER_TIMEOUT | IW_POWER_UNICAST_R;
 134
 135         range->min_pmp = 0;
 136         range->max_pmp = 65535000;
 137         range->min_pmt = 0;
 138         range->max_pmt = 65535 * 1000;
 139
 140         range->min_rts = 0;
 141         if (wl_ioctl(dev, WLC_GET_RTS, &range->max_rts, sizeof(int)) < 0)
 142                 range->max_rts = 2347;
 143
 144         range->min_frag = 256;
 145
 146         if (wl_ioctl(dev, WLC_GET_FRAG, &range->max_frag, sizeof(int)) < 0)
 147                 range->max_frag = 2346;
 148
 149         range->txpower_capa = IW_TXPOW_MWATT;
 150
 151         return 0;
 152 }
 153
 154
 155 static int wlcompat_set_scan(struct net_device *dev,
 156                          struct iw_request_info *info,
 157                          union iwreq_data *wrqu,
 158                          char *extra)
 159 {
 160         int ap = 0, oldap = 0;
 161         wl_scan_params_t params;
 162
 163         memset(&params, 0, sizeof(params));
 164
 165         /* use defaults (same parameters as wl scan) */
 166         memset(&params.bssid, 0xff, sizeof(params.bssid));
 167         params.bss_type = DOT11_BSSTYPE_ANY;
 168         params.scan_type = -1;
 169         params.nprobes = -1;
 170         params.active_time = -1;
 171         params.passive_time = -1;
 172         params.home_time = -1;
 173
 174         /* can only scan in STA mode */
 175         wl_ioctl(dev, WLC_GET_AP, &oldap, sizeof(oldap));
 176         if (oldap > 0)
 177                 wl_ioctl(dev, WLC_SET_AP, &ap, sizeof(ap));
 178
 179         if (wl_ioctl(dev, WLC_SCAN, &params, 64) < 0)
 180                 return -EINVAL;
 181
 182         if (oldap > 0)
 183                 wl_ioctl(dev, WLC_SET_AP, &oldap, sizeof(oldap));
 184
 185         return 0;
 186 }
 187
 188
 189 static int wlcompat_get_scan(struct net_device *dev,
 190                          struct iw_request_info *info,
 191                          union iwreq_data *wrqu,
 192                          char *extra)
 193 {
 194         wl_scan_results_t *results = (wl_scan_results_t *) buf;
 195         wl_bss_info_t *bss_info;
 196         char *info_ptr;
 197         char *current_ev = extra;
 198         char *current_val;
 199         char *end_buf = extra + IW_SCAN_MAX_DATA;
 200         struct iw_event iwe;
 201         int i, j;
 202
 203         if (wl_ioctl(dev, WLC_SCAN_RESULTS, buf, WLC_IOCTL_MAXLEN) < 0)
 204                 return -EAGAIN;
 205
 206         bss_info = &(results->bss_info[0]);
 207         info_ptr = (char *) bss_info;
 208         for (i = 0; i < results->count; i++) {
 209
 210                 /* send the cell address (must be sent first) */
 211                 iwe.cmd = SIOCGIWAP;
 212                 iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
 213                 memcpy(&iwe.u.ap_addr.sa_data, &bss_info->BSSID, sizeof(bss_info->BSSID));
 214                 current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe, IW_EV_ADDR_LEN);
 215
 216                 /* send the ESSID */
 217                 iwe.cmd = SIOCGIWESSID;
 218                 iwe.u.data.length = bss_info->SSID_len;
 219                 if (iwe.u.data.length > IW_ESSID_MAX_SIZE)
 220                         iwe.u.data.length = IW_ESSID_MAX_SIZE;
 221                 iwe.u.data.flags = 1;
 222                 current_ev = iwe_stream_add_point(current_ev, end_buf, &iwe, bss_info->SSID);
 223
 224                 /* send frequency/channel info */
 225                 iwe.cmd = SIOCGIWFREQ;
 226                 iwe.u.freq.e = 0;
 227                 iwe.u.freq.m = bss_info->channel;
 228                 current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe, IW_EV_FREQ_LEN);
 229
 230                 /* add quality statistics */
 231                 iwe.cmd = IWEVQUAL;
 232                 iwe.u.qual.level = bss_info->RSSI;
 233                 iwe.u.qual.noise = bss_info->phy_noise;
 234                 iwe.u.qual.qual = 0;
 235                 current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe, IW_EV_QUAL_LEN);
 236
 237                 /* send rate information */
 238                 iwe.cmd = SIOCGIWRATE;
 239                 current_val = current_ev + IW_EV_LCP_LEN;
 240                 iwe.u.bitrate.fixed = iwe.u.bitrate.disabled = 0;
 241
 242                 for(j = 0 ; j < bss_info->rateset.count ; j++) {
 243                         iwe.u.bitrate.value = ((bss_info->rateset.rates[j] & 0x7f) * 500000);
 244                         current_val = iwe_stream_add_value(current_ev, current_val, end_buf, &iwe, IW_EV_PARAM_LEN);
 245                 }
 246                 if((current_val - current_ev) > IW_EV_LCP_LEN)
 247                         current_ev = current_val;
 248
 249                 info_ptr += sizeof(wl_bss_info_t);
 250                 if (bss_info->ie_length % 4)
 251                         info_ptr += bss_info->ie_length + 4 - (bss_info->ie_length % 4);
 252                 else
 253                         info_ptr += bss_info->ie_length;
 254                 bss_info = (wl_bss_info_t *) info_ptr;
 255         }
 256
 257         wrqu->data.length = (current_ev - extra);
 258         wrqu->data.flags = 0;
 259
 260         return 0;
 261 }
 262
 263 static int wlcompat_ioctl(struct net_device *dev,
 264                          struct iw_request_info *info,
 265                          union iwreq_data *wrqu,
 266                          char *extra)
 267 {
 268         switch (info->cmd) {
 269                 case SIOCGIWNAME:
 270                         strcpy(wrqu->name, "IEEE 802.11-DS");
 271                         break;
 272                 case SIOCGIWFREQ:
 273                 {
 274                         channel_info_t ci;
 275
 276                         if (wl_ioctl(dev,WLC_GET_CHANNEL, &ci, sizeof(ci)) < 0)
 277                                 return -EINVAL;
 278
 279                         wrqu->freq.m = ci.target_channel;
 280                         wrqu->freq.e = 0;
 281                         break;
 282                 }
 283                 case SIOCSIWFREQ:
 284                 {
 285                         if (wrqu->freq.e == 1) {
 286                                 int channel = 0;
 287                                 int f = wrqu->freq.m / 100000;
 288                                 while ((channel < NUM_CHANNELS + 1) && (f != channel_frequency[channel]))
 289                                         channel++;
 290
 291                                 if (channel == NUM_CHANNELS) // channel not found
 292                                         return -EINVAL;
 293
 294                                 wrqu->freq.e = 0;
 295                                 wrqu->freq.m = channel + 1;
 296                         }
 297                         if ((wrqu->freq.e == 0) && (wrqu->freq.m < 1000)) {
 298                                 if (wl_ioctl(dev, WLC_SET_CHANNEL, &wrqu->freq.m, sizeof(int)) < 0)
 299                                         return -EINVAL;
 300                         } else {
 301                                 return -EINVAL;
 302                         }
 303                         break;
 304                 }
 305                 case SIOCSIWAP:
 306                 {
 307                         if (wrqu->ap_addr.sa_family != ARPHRD_ETHER)
 308                                 return -EINVAL;
 309
 310                         if (wl_ioctl(dev,WLC_SET_BSSID,wrqu->ap_addr.sa_data,6) < 0)
 311                                 return -EINVAL;
 312
 313                         break;
 314                 }
 315                 case SIOCGIWAP:
 316                 {
 317                         wrqu->ap_addr.sa_family = ARPHRD_ETHER;
 318                         if (wl_ioctl(dev,WLC_GET_BSSID,wrqu->ap_addr.sa_data,6) < 0)
 319                                 return -EINVAL;
 320                         break;
 321                 }
 322                 case SIOCGIWESSID:
 323                 {
 324                         wlc_ssid_t ssid;
 325
 326                         if (wl_ioctl(dev,WLC_GET_SSID, &ssid, sizeof(wlc_ssid_t)) < 0)
 327                                 return -EINVAL;
 328
 329                         wrqu->essid.flags = wrqu->data.flags = 1;
 330                         wrqu->essid.length = wrqu->data.length = ssid.SSID_len + 1;
 331                         memcpy(extra,ssid.SSID,ssid.SSID_len + 1);
 332                         break;
 333                 }
 334                 case SIOCSIWESSID:
 335                 {
 336                         wlc_ssid_t ssid;
 337                         memset(&ssid, 0, sizeof(ssid));
 338                         ssid.SSID_len = strlen(extra);
 339                         if (ssid.SSID_len > WLC_ESSID_MAX_SIZE)
 340                                 ssid.SSID_len = WLC_ESSID_MAX_SIZE;
 341                         memcpy(ssid.SSID, extra, ssid.SSID_len);
 342                         if (wl_ioctl(dev, WLC_SET_SSID, &ssid, sizeof(ssid)) < 0)
 343                                 return -EINVAL;
 344                         break;
 345                 }
 346                 case SIOCGIWRTS:
 347                 {
 348                         if (wl_ioctl(dev,WLC_GET_RTS,&(wrqu->rts.value),sizeof(int)) < 0)
 349                                 return -EINVAL;
 350                         break;
 351                 }
 352                 case SIOCSIWRTS:
 353                 {
 354                         if (wl_ioctl(dev,WLC_SET_RTS,&(wrqu->rts.value),sizeof(int)) < 0)
 355                                 return -EINVAL;
 356                         break;
 357                 }
 358                 case SIOCGIWFRAG:
 359                 {
 360                         if (wl_ioctl(dev,WLC_GET_FRAG,&(wrqu->frag.value),sizeof(int)) < 0)
 361                                 return -EINVAL;
 362                         break;
 363                 }
 364                 case SIOCSIWFRAG:
 365                 {
 366                         if (wl_ioctl(dev,WLC_SET_FRAG,&(wrqu->frag.value),sizeof(int)) < 0)
 367                                 return -EINVAL;
 368                         break;
 369                 }
 370                 case SIOCGIWTXPOW:
 371                 {
 372                         if (wl_get_val(dev, "qtxpower", &(wrqu->txpower.value), sizeof(int)) < 0)
 373                                 return -EINVAL;
 374
 375                         wrqu->txpower.value &= ~WL_TXPWR_OVERRIDE;
 376
 377                         wrqu->txpower.fixed = 0;
 378                         wrqu->txpower.disabled = 0;
 379                         wrqu->txpower.flags = IW_TXPOW_MWATT;
 380                         break;
 381                 }
 382                 case SIOCSIWTXPOW:
 383                 {
 384                         int override;
 385
 386                         if (wl_get_val(dev, "qtxpower", &override, sizeof(int)) < 0)
 387                                 return -EINVAL;
 388
 389                         wrqu->txpower.value |= override & WL_TXPWR_OVERRIDE;
 390
 391                         if (wrqu->txpower.flags != IW_TXPOW_MWATT)
 392                                 return -EINVAL;
 393
 394                         if (wl_set_val(dev, "qtxpower", &wrqu->txpower.value, sizeof(int)) < 0)
 395                                 return -EINVAL;
 396                 }
 397                 case SIOCGIWENCODE:
 398                 {
 399                         int val = 0;
 400                         if (wl_ioctl(dev, WLC_GET_WEP, &val, sizeof(val)) < 0)
 401                                 return -EINVAL;
 402
 403                         if (val > 0) {
 404                                 wrqu->data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY;
 405                         } else {
 406                                 wrqu->data.flags = IW_ENCODE_DISABLED;
 407                         }
 408
 409
 410
 411                         break;
 412                 }
 413                 case SIOCGIWRANGE:
 414                 {
 415                         return wlcompat_ioctl_getiwrange(dev, extra);
 416                         break;
 417                 }
 418                 case SIOCSIWMODE:
 419                 {
 420                         int ap = -1, infra = -1, passive = 0, wet = 0;
 421
 422                         switch (wrqu->mode) {
 423                                 case IW_MODE_MONITOR:
 424                                         passive = 1;
 425                                         break;
 426                                 case IW_MODE_ADHOC:
 427                                         infra = 0;
 428                                         ap = 0;
 429                                         break;
 430                                 case IW_MODE_MASTER:
 431                                         infra = 1;
 432                                         ap = 1;
 433                                         break;
 434                                 case IW_MODE_INFRA:
 435                                         infra = 1;
 436                                         ap = 0;
 437                                         break;
 438                                 case IW_MODE_REPEAT:
 439                                         infra = 1;
 440                                         ap = 0;
 441                                         wet = 1;
 442                                         break;
 443                                 default:
 444                                         return -EINVAL;
 445                         }
 446
 447                         if (wl_ioctl(dev, WLC_SET_PASSIVE, &passive, sizeof(passive)) < 0)
 448                                 return -EINVAL;
 449                         if (wl_ioctl(dev, WLC_SET_MONITOR, &passive, sizeof(passive)) < 0)
 450                                 return -EINVAL;
 451                         if (wl_ioctl(dev, WLC_SET_WET, &wet, sizeof(wet)) < 0)
 452                                 return -EINVAL;
 453                         if (ap >= 0)
 454                                 if (wl_ioctl(dev, WLC_SET_AP, &ap, sizeof(ap)) < 0)
 455                                         return -EINVAL;
 456                         if (infra >= 0)
 457                                 if (wl_ioctl(dev, WLC_SET_INFRA, &infra, sizeof(infra)) < 0)
 458                                         return -EINVAL;
 459
 460                         break;
 461
 462                 }
 463                 case SIOCGIWMODE:
 464                 {
 465                         int ap, infra, wet, passive;
 466
 467                         if (wl_ioctl(dev, WLC_GET_AP, &ap, sizeof(ap)) < 0)
 468                                 return -EINVAL;
 469                         if (wl_ioctl(dev, WLC_GET_INFRA, &infra, sizeof(infra)) < 0)
 470                                 return -EINVAL;
 471                         if (wl_ioctl(dev, WLC_GET_PASSIVE, &passive, sizeof(passive)) < 0)
 472                                 return -EINVAL;
 473                         if (wl_ioctl(dev, WLC_GET_WET, &wet, sizeof(wet)) < 0)
 474                                 return -EINVAL;
 475
 476                         if (passive) {
 477                                 wrqu->mode = IW_MODE_MONITOR;
 478                         } else if (!infra) {
 479                                 wrqu->mode = IW_MODE_ADHOC;
 480                         } else {
 481                                 if (ap) {
 482                                         wrqu->mode = IW_MODE_MASTER;
 483                                 } else {
 484                                         if (wet) {
 485                                                 wrqu->mode = IW_MODE_REPEAT;
 486                                         } else {
 487                                                 wrqu->mode = IW_MODE_INFRA;
 488                                         }
 489                                 }
 490                         }
 491                         break;
 492                 }
 493                 default:
 494                 {
 495                         if (info->cmd >= SIOCIWFIRSTPRIV)
 496                                 return wlcompat_private_ioctl(dev, info, wrqu, extra);
 497
 498                         return -EINVAL;
 499                 }
 500         }
 501
 502         return 0;
 503 }
 504
 505 static const iw_handler  wlcompat_handler[] = {
 506         NULL,                   /* SIOCSIWCOMMIT */
 507         wlcompat_ioctl,         /* SIOCGIWNAME */
 508         NULL,                   /* SIOCSIWNWID */
 509         NULL,                   /* SIOCGIWNWID */
 510         wlcompat_ioctl,         /* SIOCSIWFREQ */
 511         wlcompat_ioctl,         /* SIOCGIWFREQ */
 512         wlcompat_ioctl,         /* SIOCSIWMODE */
 513         wlcompat_ioctl,         /* SIOCGIWMODE */
 514         NULL,                   /* SIOCSIWSENS */
 515         NULL,                   /* SIOCGIWSENS */
 516         NULL,                   /* SIOCSIWRANGE, unused */
 517         wlcompat_ioctl,         /* SIOCGIWRANGE */
 518         NULL,                   /* SIOCSIWPRIV */
 519         NULL,                   /* SIOCGIWPRIV */
 520         NULL,                   /* SIOCSIWSTATS */
 521         NULL,                   /* SIOCGIWSTATS */
 522         iw_handler_set_spy,     /* SIOCSIWSPY */
 523         iw_handler_get_spy,     /* SIOCGIWSPY */
 524         iw_handler_set_thrspy,  /* SIOCSIWTHRSPY */
 525         iw_handler_get_thrspy,  /* SIOCGIWTHRSPY */
 526         wlcompat_ioctl,         /* SIOCSIWAP */
 527         wlcompat_ioctl,         /* SIOCGIWAP */
 528         NULL,                   /* -- hole -- */
 529         NULL,                   /* SIOCGIWAPLIST */
 530         wlcompat_set_scan,      /* SIOCSIWSCAN */
 531         wlcompat_get_scan,      /* SIOCGIWSCAN */
 532         wlcompat_ioctl,         /* SIOCSIWESSID */
 533         wlcompat_ioctl,         /* SIOCGIWESSID */
 534         NULL,                   /* SIOCSIWNICKN */
 535         NULL,                   /* SIOCGIWNICKN */
 536         NULL,                   /* -- hole -- */
 537         NULL,                   /* -- hole -- */
 538         NULL,                   /* SIOCSIWRATE */
 539         NULL,                   /* SIOCGIWRATE */
 540         wlcompat_ioctl,         /* SIOCSIWRTS */
 541         wlcompat_ioctl,         /* SIOCGIWRTS */
 542         wlcompat_ioctl,         /* SIOCSIWFRAG */
 543         wlcompat_ioctl,         /* SIOCGIWFRAG */
 544         wlcompat_ioctl,         /* SIOCSIWTXPOW */
 545         wlcompat_ioctl,         /* SIOCGIWTXPOW */
 546         NULL,                   /* SIOCSIWRETRY */
 547         NULL,                   /* SIOCGIWRETRY */
 548         NULL,                   /* SIOCSIWENCODE */
 549         wlcompat_ioctl,         /* SIOCGIWENCODE */
 550 };
 551
 552 #define PRIV_SET_MONITOR                SIOCIWFIRSTPRIV + 0
 553 #define PRIV_GET_MONITOR                SIOCIWFIRSTPRIV + 1
 554 #define PRIV_SET_TXPWR_LIMIT            SIOCIWFIRSTPRIV + 2
 555 #define PRIV_GET_TXPWR_LIMIT            SIOCIWFIRSTPRIV + 3
 556
 557 static const struct iw_priv_args        wlcompat_private_args[] =
 558 {
 559         {       PRIV_SET_MONITOR,
 560                 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
 561                 0,
 562                 "set_monitor"
 563         },
 564         {       PRIV_GET_MONITOR,
 565                 0,
 566                 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
 567                 "get_monitor"
 568         },
 569         {       PRIV_SET_TXPWR_LIMIT,
 570                 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
 571                 0,
 572                 "set_txpwr_force"
 573         },
 574         {       PRIV_GET_TXPWR_LIMIT,
 575                 0,
 576                 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
 577                 "get_txpwr_force"
 578         }
 579 };
 580
 581 static int wlcompat_private_ioctl(struct net_device *dev,
 582                          struct iw_request_info *info,
 583                          union iwreq_data *wrqu,
 584                          char *extra)
 585 {
 586         int *value = (int *) wrqu->name;
 587
 588         switch (info->cmd) {
 589                 case PRIV_SET_MONITOR:
 590                 {
 591                         if (wl_ioctl(dev, WLC_SET_MONITOR, value, sizeof(int)) < 0)
 592                                 return -EINVAL;
 593
 594                         break;
 595                 }
 596                 case PRIV_GET_MONITOR:
 597                 {
 598                         if (wl_ioctl(dev, WLC_GET_MONITOR, extra, sizeof(int)) < 0)
 599                                 return -EINVAL;
 600
 601                         break;
 602                 }
 603                 case PRIV_SET_TXPWR_LIMIT:
 604                 {
 605                         int val;
 606
 607
 608                         if (wl_get_val(dev, "qtxpower", &val, sizeof(int)) < 0)
 609                                 return -EINVAL;
 610
 611                         if (*extra > 0)
 612                                 val |= WL_TXPWR_OVERRIDE;
 613                         else
 614                                 val &= ~WL_TXPWR_OVERRIDE;
 615
 616                         if (wl_set_val(dev, "qtxpower", &val, sizeof(int)) < 0)
 617                                 return -EINVAL;
 618
 619                         break;
 620                 }
 621                 case PRIV_GET_TXPWR_LIMIT:
 622                 {
 623                         if (wl_get_val(dev, "qtxpower", value, sizeof(int)) < 0)
 624                                 return -EINVAL;
 625
 626                         *value = ((*value & WL_TXPWR_OVERRIDE) == WL_TXPWR_OVERRIDE ? 1 : 0);
 627
 628                         break;
 629                 }
 630                 default:
 631                 {
 632                         return -EINVAL;
 633                 }
 634
 635         }
 636         return 0;
 637 }
 638
 639
 640 static const iw_handler wlcompat_private[] =
 641 {
 642         wlcompat_private_ioctl,
 643         wlcompat_private_ioctl,
 644         wlcompat_private_ioctl,
 645         wlcompat_private_ioctl
 646 };
 647
 648
 649 static const struct iw_handler_def      wlcompat_handler_def =
 650 {
 651         .standard       = (iw_handler *) wlcompat_handler,
 652         .num_standard   = sizeof(wlcompat_handler)/sizeof(iw_handler),
 653         .private        = wlcompat_private,
 654         .num_private    = sizeof(wlcompat_private)/sizeof(iw_handler),
 655         .private_args   = wlcompat_private_args,
 656         .num_private_args = sizeof(wlcompat_private_args)/sizeof(struct iw_priv_args),
 657 };
 658
 659
 660 #ifdef DEBUG
 661 static int (*old_ioctl)(struct net_device *dev, struct ifreq *ifr, int cmd);
 662 void print_buffer(int len, unsigned char *buf) {
 663         int x;
 664         if (buf != NULL) {
 665                 for (x=0;x<len && x<180 ;x++) {
 666                         if ((x % 4) == 0)
 667                                 printk(" ");
 668                         printk("%02X",buf[x]);
 669                 }
 670         } else {
 671                 printk(" NULL");
 672         }
 673         printk("\n");
 674
 675 }
 676 static int new_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) {
 677         int ret = 0;
 678         printk("dev: %s ioctl: 0x%04x\n",dev->name,cmd);
 679         if (cmd==SIOCDEVPRIVATE) {
 680                 wl_ioctl_t *ioc = (wl_ioctl_t *)ifr->ifr_data;
 681                 unsigned char *buf = ioc->buf;
 682                 printk("   cmd: %d buf: 0x%08x len: %d\n",ioc->cmd,&(ioc->buf),ioc->len);
 683                 printk("   send: ->");
 684                 print_buffer(ioc->len, buf);
 685                 ret = old_ioctl(dev,ifr,cmd);
 686                 printk("   recv: ->");
 687                 print_buffer(ioc->len, buf);
 688                 printk("   ret: %d\n", ret);
 689         } else {
 690                 ret = old_ioctl(dev,ifr,cmd);
 691         }
 692         return ret;
 693 }
 694 #endif
 695
 696 static int __init wlcompat_init()
 697 {
 698         int found = 0, i;
 699         char *devname = "eth0";
 700
 701         while (!found && (dev = dev_get_by_name(devname))) {
 702                 if ((wl_ioctl(dev, WLC_GET_MAGIC, &i, sizeof(i)) == 0) && i == WLC_IOCTL_MAGIC)
 703                         found = 1;
 704                 devname[3]++;
 705         }
 706
 707         if (!found) {
 708                 printk("No Broadcom devices found.\n");
 709                 return -ENODEV;
 710         }
 711
 712
 713 #ifdef DEBUG
 714         old_ioctl = dev->do_ioctl;
 715         dev->do_ioctl = new_ioctl;
 716 #endif
 717         dev->wireless_handlers = (struct iw_handler_def *)&wlcompat_handler_def;
 718         return 0;
 719 }
 720
 721 static void __exit wlcompat_exit()
 722 {
 723         dev->wireless_handlers = NULL;
 724 #ifdef DEBUG
 725         dev->do_ioctl = old_ioctl;
 726 #endif
 727         return;
 728 }
 729
 730 EXPORT_NO_SYMBOLS;
 731 MODULE_AUTHOR("openwrt.org");
 732 MODULE_LICENSE("GPL");
 733
 734 module_init(wlcompat_init);
 735 module_exit(wlcompat_exit);