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