target/linux/package/wlcompat/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 typedef struct internal_wsec_key {
  47         uint8 index;            // 0x00
  48         uint8 unknown_1;        // 0x01
  49         uint8 type;             // 0x02
  50         uint8 unknown_2[7];     // 0x03
  51         uint8 len;              // 0x0a
  52         uint8 pad[3];
  53         char data[32];          // 0x0e
  54 } wkey;
  55
  56
  57 static int wlcompat_private_ioctl(struct net_device *dev,
  58                          struct iw_request_info *info,
  59                          union iwreq_data *wrqu,
  60                          char *extra);
  61 #ifdef DEBUG
  62 void print_buffer(int len, unsigned char *buf);
  63 #endif
  64
  65 static int wl_ioctl(struct net_device *dev, int cmd, void *buf, int len)
  66 {
  67         mm_segment_t old_fs = get_fs();
  68         struct ifreq ifr;
  69         int ret;
  70         wl_ioctl_t ioc;
  71         ioc.cmd = cmd;
  72         ioc.buf = buf;
  73         ioc.len = len;
  74         strncpy(ifr.ifr_name, dev->name, IFNAMSIZ);
  75         ifr.ifr_data = (caddr_t) &ioc;
  76         set_fs(KERNEL_DS);
  77         ret = dev->do_ioctl(dev,&ifr,SIOCDEVPRIVATE);
  78         set_fs (old_fs);
  79         return ret;
  80 }
  81
  82 static int wl_set_val(struct net_device *dev, char *var, void *val, int len)
  83 {
  84         char buf[128];
  85         int buf_len;
  86         int ret;
  87
  88         /* check for overflow */
  89         if ((buf_len = strlen(var)) + 1 + len > sizeof(buf))
  90                 return -1;
  91
  92         strcpy(buf, var);
  93         buf_len += 1;
  94
  95         /* append int value onto the end of the name string */
  96         memcpy(&(buf[buf_len]), val, len);
  97         buf_len += len;
  98
  99         ret = wl_ioctl(dev, WLC_SET_VAR, buf, buf_len);
 100         return ret;
 101 }
 102
 103 static int wl_get_val(struct net_device *dev, char *var, void *val, int len)
 104 {
 105         char buf[128];
 106         int buf_len;
 107         int ret;
 108
 109         /* check for overflow */
 110         if ((buf_len = strlen(var)) + 1 > sizeof(buf) || len > sizeof(buf))
 111                 return -1;
 112
 113         strcpy(buf, var);
 114         if (ret = wl_ioctl(dev, WLC_GET_VAR, buf, buf_len + len))
 115                 return ret;
 116
 117         memcpy(val, buf, len);
 118         return 0;
 119 }
 120
 121 int get_primary_key(struct net_device *dev)
 122 {
 123         int key, val;
 124
 125         for (key = val = 0; (key < 4) && (val == 0); key++) {
 126                 val = key;
 127                 if (wl_ioctl(dev, WLC_GET_KEY_PRIMARY, &val, sizeof(val)) < 0)
 128                         return -EINVAL;
 129         }
 130         return key;
 131 }
 132
 133
 134 static int wlcompat_ioctl_getiwrange(struct net_device *dev,
 135                                     char *extra)
 136 {
 137         int i, k;
 138         struct iw_range *range;
 139
 140         range = (struct iw_range *) extra;
 141
 142         range->we_version_compiled = WIRELESS_EXT;
 143         range->we_version_source = WIRELESS_EXT;
 144
 145         range->min_nwid = range->max_nwid = 0;
 146
 147         range->num_channels = NUM_CHANNELS;
 148         k = 0;
 149         for (i = 0; i < NUM_CHANNELS; i++) {
 150                 range->freq[k].i = i + 1;
 151                 range->freq[k].m = channel_frequency[i] * 100000;
 152                 range->freq[k].e = 1;
 153                 k++;
 154                 if (k >= IW_MAX_FREQUENCIES)
 155                         break;
 156         }
 157         range->num_frequency = k;
 158         range->sensitivity = 3;
 159
 160         /* nbd: don't know what this means, but other drivers set it this way */
 161         range->pmp_flags = IW_POWER_PERIOD;
 162         range->pmt_flags = IW_POWER_TIMEOUT;
 163         range->pm_capa = IW_POWER_PERIOD | IW_POWER_TIMEOUT | IW_POWER_UNICAST_R;
 164
 165         range->min_pmp = 0;
 166         range->max_pmp = 65535000;
 167         range->min_pmt = 0;
 168         range->max_pmt = 65535 * 1000;
 169
 170         range->min_rts = 0;
 171         if (wl_ioctl(dev, WLC_GET_RTS, &range->max_rts, sizeof(int)) < 0)
 172                 range->max_rts = 2347;
 173
 174         range->min_frag = 256;
 175
 176         if (wl_ioctl(dev, WLC_GET_FRAG, &range->max_frag, sizeof(int)) < 0)
 177                 range->max_frag = 2346;
 178
 179         range->txpower_capa = IW_TXPOW_DBM;
 180
 181         return 0;
 182 }
 183
 184
 185 static int wlcompat_set_scan(struct net_device *dev,
 186                          struct iw_request_info *info,
 187                          union iwreq_data *wrqu,
 188                          char *extra)
 189 {
 190         int ap = 0, oldap = 0;
 191         wl_scan_params_t params;
 192
 193         memset(&params, 0, sizeof(params));
 194
 195         /* use defaults (same parameters as wl scan) */
 196         memset(&params.bssid, 0xff, sizeof(params.bssid));
 197         params.bss_type = DOT11_BSSTYPE_ANY;
 198         params.scan_type = -1;
 199         params.nprobes = -1;
 200         params.active_time = -1;
 201         params.passive_time = -1;
 202         params.home_time = -1;
 203
 204         /* can only scan in STA mode */
 205         wl_ioctl(dev, WLC_GET_AP, &oldap, sizeof(oldap));
 206         if (oldap > 0)
 207                 wl_ioctl(dev, WLC_SET_AP, &ap, sizeof(ap));
 208
 209         if (wl_ioctl(dev, WLC_SCAN, &params, 64) < 0)
 210                 return -EINVAL;
 211
 212         if (oldap > 0)
 213                 wl_ioctl(dev, WLC_SET_AP, &oldap, sizeof(oldap));
 214
 215         return 0;
 216 }
 217
 218
 219 static int wlcompat_get_scan(struct net_device *dev,
 220                          struct iw_request_info *info,
 221                          union iwreq_data *wrqu,
 222                          char *extra)
 223 {
 224         wl_scan_results_t *results = (wl_scan_results_t *) buf;
 225         wl_bss_info_t *bss_info;
 226         char *info_ptr;
 227         char *current_ev = extra;
 228         char *current_val;
 229         char *end_buf = extra + IW_SCAN_MAX_DATA;
 230         struct iw_event iwe;
 231         int i, j;
 232
 233         if (wl_ioctl(dev, WLC_SCAN_RESULTS, buf, WLC_IOCTL_MAXLEN) < 0)
 234                 return -EAGAIN;
 235
 236         bss_info = &(results->bss_info[0]);
 237         info_ptr = (char *) bss_info;
 238         for (i = 0; i < results->count; i++) {
 239
 240                 /* send the cell address (must be sent first) */
 241                 iwe.cmd = SIOCGIWAP;
 242                 iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
 243                 memcpy(&iwe.u.ap_addr.sa_data, &bss_info->BSSID, sizeof(bss_info->BSSID));
 244                 current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe, IW_EV_ADDR_LEN);
 245
 246                 /* send the ESSID */
 247                 iwe.cmd = SIOCGIWESSID;
 248                 iwe.u.data.length = bss_info->SSID_len;
 249                 if (iwe.u.data.length > IW_ESSID_MAX_SIZE)
 250                         iwe.u.data.length = IW_ESSID_MAX_SIZE;
 251                 iwe.u.data.flags = 1;
 252                 current_ev = iwe_stream_add_point(current_ev, end_buf, &iwe, bss_info->SSID);
 253
 254                 /* send frequency/channel info */
 255                 iwe.cmd = SIOCGIWFREQ;
 256                 iwe.u.freq.e = 0;
 257                 iwe.u.freq.m = bss_info->channel;
 258                 current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe, IW_EV_FREQ_LEN);
 259
 260                 /* add quality statistics */
 261                 iwe.cmd = IWEVQUAL;
 262                 iwe.u.qual.level = bss_info->RSSI;
 263                 iwe.u.qual.noise = bss_info->phy_noise;
 264                 iwe.u.qual.qual = 0;
 265                 current_ev = iwe_stream_add_event(current_ev, end_buf, &iwe, IW_EV_QUAL_LEN);
 266
 267                 /* send rate information */
 268                 iwe.cmd = SIOCGIWRATE;
 269                 current_val = current_ev + IW_EV_LCP_LEN;
 270                 iwe.u.bitrate.fixed = iwe.u.bitrate.disabled = 0;
 271
 272                 for(j = 0 ; j < bss_info->rateset.count ; j++) {
 273                         iwe.u.bitrate.value = ((bss_info->rateset.rates[j] & 0x7f) * 500000);
 274                         current_val = iwe_stream_add_value(current_ev, current_val, end_buf, &iwe, IW_EV_PARAM_LEN);
 275                 }
 276                 if((current_val - current_ev) > IW_EV_LCP_LEN)
 277                         current_ev = current_val;
 278
 279                 info_ptr += sizeof(wl_bss_info_t);
 280                 if (bss_info->ie_length % 4)
 281                         info_ptr += bss_info->ie_length + 4 - (bss_info->ie_length % 4);
 282                 else
 283                         info_ptr += bss_info->ie_length;
 284                 bss_info = (wl_bss_info_t *) info_ptr;
 285         }
 286
 287         wrqu->data.length = (current_ev - extra);
 288         wrqu->data.flags = 0;
 289
 290         return 0;
 291 }
 292
 293 static int wlcompat_ioctl(struct net_device *dev,
 294                          struct iw_request_info *info,
 295                          union iwreq_data *wrqu,
 296                          char *extra)
 297 {
 298         switch (info->cmd) {
 299                 case SIOCGIWNAME:
 300                         strcpy(wrqu->name, "IEEE 802.11-DS");
 301                         break;
 302                 case SIOCGIWFREQ:
 303                 {
 304                         channel_info_t ci;
 305
 306                         if (wl_ioctl(dev,WLC_GET_CHANNEL, &ci, sizeof(ci)) < 0)
 307                                 return -EINVAL;
 308
 309                         wrqu->freq.m = ci.target_channel;
 310                         wrqu->freq.e = 0;
 311                         break;
 312                 }
 313                 case SIOCSIWFREQ:
 314                 {
 315                         if (wrqu->freq.m == -1) {
 316                                 wrqu->freq.m = 0;
 317                                 if (wl_ioctl(dev, WLC_SET_CHANNEL, &wrqu->freq.m, sizeof(int)) < 0)
 318                                         return -EINVAL;
 319                         } else {
 320                                 if (wrqu->freq.e == 1) {
 321                                         int channel = 0;
 322                                         int f = wrqu->freq.m / 100000;
 323                                         while ((channel < NUM_CHANNELS + 1) && (f != channel_frequency[channel]))
 324                                                 channel++;
 325
 326                                         if (channel == NUM_CHANNELS) // channel not found
 327                                                 return -EINVAL;
 328
 329                                         wrqu->freq.e = 0;
 330                                         wrqu->freq.m = channel + 1;
 331                                 }
 332                                 if ((wrqu->freq.e == 0) && (wrqu->freq.m < 1000)) {
 333                                         if (wl_ioctl(dev, WLC_SET_CHANNEL, &wrqu->freq.m, sizeof(int)) < 0)
 334                                                 return -EINVAL;
 335                                 } else {
 336                                         return -EINVAL;
 337                                 }
 338                         }
 339                         break;
 340                 }
 341                 case SIOCSIWAP:
 342                 {
 343                         int ap = 0;
 344
 345                         if (wrqu->ap_addr.sa_family != ARPHRD_ETHER)
 346                                 return -EINVAL;
 347
 348                         if (wl_ioctl(dev, WLC_GET_AP, &ap, sizeof(ap)) < 0)
 349                                 return -EINVAL;
 350
 351                         if (wl_ioctl(dev, (ap ? WLC_SET_BSSID : WLC_REASSOC), wrqu->ap_addr.sa_data, 6) < 0)
 352                                 return -EINVAL;
 353
 354                         break;
 355                 }
 356                 case SIOCGIWAP:
 357                 {
 358                         wrqu->ap_addr.sa_family = ARPHRD_ETHER;
 359                         if (wl_ioctl(dev,WLC_GET_BSSID,wrqu->ap_addr.sa_data,6) < 0)
 360                                 return -EINVAL;
 361                         break;
 362                 }
 363                 case SIOCGIWESSID:
 364                 {
 365                         wlc_ssid_t ssid;
 366
 367                         if (wl_ioctl(dev,WLC_GET_SSID, &ssid, sizeof(wlc_ssid_t)) < 0)
 368                                 return -EINVAL;
 369
 370                         wrqu->essid.flags = wrqu->data.flags = 1;
 371                         wrqu->essid.length = wrqu->data.length = ssid.SSID_len + 1;
 372                         memcpy(extra,ssid.SSID,ssid.SSID_len + 1);
 373                         break;
 374                 }
 375                 case SIOCSIWESSID:
 376                 {
 377                         wlc_ssid_t ssid;
 378                         memset(&ssid, 0, sizeof(ssid));
 379                         ssid.SSID_len = strlen(extra);
 380                         if (ssid.SSID_len > WLC_ESSID_MAX_SIZE)
 381                                 ssid.SSID_len = WLC_ESSID_MAX_SIZE;
 382                         memcpy(ssid.SSID, extra, ssid.SSID_len);
 383                         if (wl_ioctl(dev, WLC_SET_SSID, &ssid, sizeof(ssid)) < 0)
 384                                 return -EINVAL;
 385                         break;
 386                 }
 387                 case SIOCGIWRTS:
 388                 {
 389                         if (wl_ioctl(dev,WLC_GET_RTS,&(wrqu->rts.value),sizeof(int)) < 0)
 390                                 return -EINVAL;
 391                         break;
 392                 }
 393                 case SIOCSIWRTS:
 394                 {
 395                         if (wl_ioctl(dev,WLC_SET_RTS,&(wrqu->rts.value),sizeof(int)) < 0)
 396                                 return -EINVAL;
 397                         break;
 398                 }
 399                 case SIOCGIWFRAG:
 400                 {
 401                         if (wl_ioctl(dev,WLC_GET_FRAG,&(wrqu->frag.value),sizeof(int)) < 0)
 402                                 return -EINVAL;
 403                         break;
 404                 }
 405                 case SIOCSIWFRAG:
 406                 {
 407                         if (wl_ioctl(dev,WLC_SET_FRAG,&(wrqu->frag.value),sizeof(int)) < 0)
 408                                 return -EINVAL;
 409                         break;
 410                 }
 411                 case SIOCGIWTXPOW:
 412                 {
 413                         int radio;
 414
 415                         wl_ioctl(dev, WLC_GET_RADIO, &radio, sizeof(int));
 416
 417                         if (wl_get_val(dev, "qtxpower", &(wrqu->txpower.value), sizeof(int)) < 0)
 418                                 return -EINVAL;
 419
 420                         wrqu->txpower.value &= ~WL_TXPWR_OVERRIDE;
 421                         wrqu->txpower.value /= 4;
 422
 423                         wrqu->txpower.fixed = 0;
 424                         wrqu->txpower.disabled = radio;
 425                         wrqu->txpower.flags = IW_TXPOW_DBM;
 426                         break;
 427                 }
 428                 case SIOCSIWTXPOW:
 429                 {
 430                         /* This is weird: WLC_SET_RADIO with 1 as argument disables the radio */
 431                         int radio = wrqu->txpower.disabled;
 432
 433                         wl_ioctl(dev, WLC_SET_RADIO, &radio, sizeof(int));
 434
 435                         if (!wrqu->txpower.disabled && (wrqu->txpower.value > 0)) {
 436                                 int value;
 437
 438                                 if (wl_get_val(dev, "qtxpower", &value, sizeof(int)) < 0)
 439                                         return -EINVAL;
 440
 441                                 value &= WL_TXPWR_OVERRIDE;
 442                                 wrqu->txpower.value *= 4;
 443                                 wrqu->txpower.value |= value;
 444
 445                                 if (wrqu->txpower.flags != IW_TXPOW_DBM)
 446                                         return -EINVAL;
 447
 448                                 if (wrqu->txpower.value > 0)
 449                                         if (wl_set_val(dev, "qtxpower", &(wrqu->txpower.value), sizeof(int)) < 0)
 450                                                 return -EINVAL;
 451                         }
 452                         break;
 453                 }
 454                 case SIOCSIWENCODE:
 455                 {
 456                         int val = 0, wep = 1, wrestrict = 1;
 457                         int index = (wrqu->data.flags & IW_ENCODE_INDEX) - 1;
 458
 459                         if (index < 0)
 460                                 index = get_primary_key(dev);
 461
 462                         if (wrqu->data.flags & IW_ENCODE_DISABLED) {
 463                                 wep = 0;
 464                                 if (wl_ioctl(dev, WLC_SET_WSEC, &wep, sizeof(val)) < 0)
 465                                         return -EINVAL;
 466                                 return 0;
 467                         }
 468
 469                         if (wl_ioctl(dev, WLC_SET_WSEC, &wep, sizeof(val)) < 0)
 470                                 return -EINVAL;
 471
 472                         if (wrqu->data.flags & IW_ENCODE_OPEN)
 473                                 wrestrict = 0;
 474
 475                         if (wrqu->data.pointer && (wrqu->data.length > 0) && (wrqu->data.length <= 16)) {
 476                                 wl_wsec_key_t key;
 477                                 memset(&key, 0, sizeof(key));
 478
 479                                 key.flags = WL_PRIMARY_KEY;
 480                                 key.len = wrqu->data.length;
 481                                 key.index = index;
 482                                 memcpy(key.data, wrqu->data.pointer, wrqu->data.length);
 483
 484                                 if (wl_ioctl(dev, WLC_SET_KEY, &key, sizeof(key)) < 0)
 485                                         return -EINVAL;
 486                         }
 487
 488                         if (index >= 0)
 489                                 wl_ioctl(dev, WLC_SET_KEY_PRIMARY, &index, sizeof(index));
 490
 491                         if (wrestrict >= 0)
 492                                 wl_ioctl(dev, WLC_SET_WEP_RESTRICT, &wrestrict, sizeof(wrestrict));
 493
 494                         break;
 495                 }
 496                 case SIOCGIWENCODE:
 497                 {
 498                         int val;
 499
 500                         if (wl_ioctl(dev, WLC_GET_WEP, &val, sizeof(val)) < 0)
 501                                 return -EINVAL;
 502
 503
 504                         if (val > 0) {
 505                                 int key = get_primary_key(dev);
 506
 507                                 wrqu->data.flags = IW_ENCODE_ENABLED;
 508                                 if (key-- > 0) {
 509                                         int *info_addr;
 510                                         wkey *wep_key;
 511
 512                                         info_addr = (int *) dev->priv;
 513                                         wep_key = (wkey *) ((*info_addr) + 0x2752 + (key * 0x110));
 514
 515                                         wrqu->data.flags |= key + 1;
 516                                         wrqu->data.length = wep_key->len;
 517
 518                                         memset(extra, 0, 16);
 519                                         memcpy(extra, wep_key->data, 16);
 520                                 } else {
 521                                         wrqu->data.flags |= IW_ENCODE_NOKEY;
 522                                 }
 523                         } else {
 524                                 wrqu->data.flags = IW_ENCODE_DISABLED;
 525                         }
 526
 527                         break;
 528                 }
 529                 case SIOCGIWRANGE:
 530                 {
 531                         return wlcompat_ioctl_getiwrange(dev, extra);
 532                         break;
 533                 }
 534                 case SIOCSIWMODE:
 535                 {
 536                         int ap = -1, infra = -1, passive = 0, wet = 0;
 537
 538                         switch (wrqu->mode) {
 539                                 case IW_MODE_MONITOR:
 540                                         passive = 1;
 541                                         break;
 542                                 case IW_MODE_ADHOC:
 543                                         infra = 0;
 544                                         ap = 0;
 545                                         break;
 546                                 case IW_MODE_MASTER:
 547                                         infra = 1;
 548                                         ap = 1;
 549                                         break;
 550                                 case IW_MODE_INFRA:
 551                                         infra = 1;
 552                                         ap = 0;
 553                                         break;
 554                                 case IW_MODE_REPEAT:
 555                                         infra = 1;
 556                                         ap = 0;
 557                                         wet = 1;
 558                                         break;
 559
 560                                 default:
 561                                         return -EINVAL;
 562                         }
 563
 564                         wl_ioctl(dev, WLC_SET_PASSIVE, &passive, sizeof(passive));
 565                         wl_ioctl(dev, WLC_SET_MONITOR, &passive, sizeof(passive));
 566                         wl_ioctl(dev, WLC_SET_WET, &wet, sizeof(wet));
 567                         if (ap >= 0)
 568                                 wl_ioctl(dev, WLC_SET_AP, &ap, sizeof(ap));
 569                         if (infra >= 0)
 570                                 wl_ioctl(dev, WLC_SET_INFRA, &infra, sizeof(infra));
 571
 572                         break;
 573
 574                 }
 575                 case SIOCGIWMODE:
 576                 {
 577                         int ap, infra, wet, passive;
 578
 579                         if (wl_ioctl(dev, WLC_GET_AP, &ap, sizeof(ap)) < 0)
 580                                 return -EINVAL;
 581                         if (wl_ioctl(dev, WLC_GET_INFRA, &infra, sizeof(infra)) < 0)
 582                                 return -EINVAL;
 583                         if (wl_ioctl(dev, WLC_GET_PASSIVE, &passive, sizeof(passive)) < 0)
 584                                 return -EINVAL;
 585                         if (wl_ioctl(dev, WLC_GET_WET, &wet, sizeof(wet)) < 0)
 586                                 return -EINVAL;
 587
 588                         if (passive) {
 589                                 wrqu->mode = IW_MODE_MONITOR;
 590                         } else if (!infra) {
 591                                 wrqu->mode = IW_MODE_ADHOC;
 592                         } else {
 593                                 if (ap) {
 594                                         wrqu->mode = IW_MODE_MASTER;
 595                                 } else {
 596                                         if (wet) {
 597                                                 wrqu->mode = IW_MODE_REPEAT;
 598                                         } else {
 599                                                 wrqu->mode = IW_MODE_INFRA;
 600                                         }
 601                                 }
 602                         }
 603                         break;
 604                 }
 605                 default:
 606                 {
 607                         if (info->cmd >= SIOCIWFIRSTPRIV)
 608                                 return wlcompat_private_ioctl(dev, info, wrqu, extra);
 609
 610                         return -EINVAL;
 611                 }
 612         }
 613
 614         return 0;
 615 }
 616
 617 static const iw_handler  wlcompat_handler[] = {
 618         NULL,                   /* SIOCSIWCOMMIT */
 619         wlcompat_ioctl,         /* SIOCGIWNAME */
 620         NULL,                   /* SIOCSIWNWID */
 621         NULL,                   /* SIOCGIWNWID */
 622         wlcompat_ioctl,         /* SIOCSIWFREQ */
 623         wlcompat_ioctl,         /* SIOCGIWFREQ */
 624         wlcompat_ioctl,         /* SIOCSIWMODE */
 625         wlcompat_ioctl,         /* SIOCGIWMODE */
 626         NULL,                   /* SIOCSIWSENS */
 627         NULL,                   /* SIOCGIWSENS */
 628         NULL,                   /* SIOCSIWRANGE, unused */
 629         wlcompat_ioctl,         /* SIOCGIWRANGE */
 630         NULL,                   /* SIOCSIWPRIV */
 631         NULL,                   /* SIOCGIWPRIV */
 632         NULL,                   /* SIOCSIWSTATS */
 633         NULL,                   /* SIOCGIWSTATS */
 634         iw_handler_set_spy,     /* SIOCSIWSPY */
 635         iw_handler_get_spy,     /* SIOCGIWSPY */
 636         iw_handler_set_thrspy,  /* SIOCSIWTHRSPY */
 637         iw_handler_get_thrspy,  /* SIOCGIWTHRSPY */
 638         wlcompat_ioctl,         /* SIOCSIWAP */
 639         wlcompat_ioctl,         /* SIOCGIWAP */
 640         NULL,                   /* -- hole -- */
 641         NULL,                   /* SIOCGIWAPLIST */
 642         wlcompat_set_scan,      /* SIOCSIWSCAN */
 643         wlcompat_get_scan,      /* SIOCGIWSCAN */
 644         wlcompat_ioctl,         /* SIOCSIWESSID */
 645         wlcompat_ioctl,         /* SIOCGIWESSID */
 646         NULL,                   /* SIOCSIWNICKN */
 647         NULL,                   /* SIOCGIWNICKN */
 648         NULL,                   /* -- hole -- */
 649         NULL,                   /* -- hole -- */
 650         NULL,                   /* SIOCSIWRATE */
 651         NULL,                   /* SIOCGIWRATE */
 652         wlcompat_ioctl,         /* SIOCSIWRTS */
 653         wlcompat_ioctl,         /* SIOCGIWRTS */
 654         wlcompat_ioctl,         /* SIOCSIWFRAG */
 655         wlcompat_ioctl,         /* SIOCGIWFRAG */
 656         wlcompat_ioctl,         /* SIOCSIWTXPOW */
 657         wlcompat_ioctl,         /* SIOCGIWTXPOW */
 658         NULL,                   /* SIOCSIWRETRY */
 659         NULL,                   /* SIOCGIWRETRY */
 660         wlcompat_ioctl,         /* SIOCSIWENCODE */
 661         wlcompat_ioctl,         /* SIOCGIWENCODE */
 662 };
 663
 664 static int wlcompat_private_ioctl(struct net_device *dev,
 665                          struct iw_request_info *info,
 666                          union iwreq_data *wrqu,
 667                          char *extra)
 668 {
 669         int *value = (int *) wrqu->name;
 670
 671         switch (info->cmd) {
 672                 case WLCOMPAT_SET_MONITOR:
 673                 {
 674                         if (wl_ioctl(dev, WLC_SET_MONITOR, value, sizeof(int)) < 0)
 675                                 return -EINVAL;
 676
 677                         break;
 678                 }
 679                 case WLCOMPAT_GET_MONITOR:
 680                 {
 681                         if (wl_ioctl(dev, WLC_GET_MONITOR, extra, sizeof(int)) < 0)
 682                                 return -EINVAL;
 683
 684                         break;
 685                 }
 686                 case WLCOMPAT_SET_TXPWR_LIMIT:
 687                 {
 688                         int val;
 689
 690
 691                         if (wl_get_val(dev, "qtxpower", &val, sizeof(int)) < 0)
 692                                 return -EINVAL;
 693
 694                         if (*extra > 0)
 695                                 val |= WL_TXPWR_OVERRIDE;
 696                         else
 697                                 val &= ~WL_TXPWR_OVERRIDE;
 698
 699                         if (wl_set_val(dev, "qtxpower", &val, sizeof(int)) < 0)
 700                                 return -EINVAL;
 701
 702                         break;
 703                 }
 704                 case WLCOMPAT_GET_TXPWR_LIMIT:
 705                 {
 706                         if (wl_get_val(dev, "qtxpower", value, sizeof(int)) < 0)
 707                                 return -EINVAL;
 708
 709                         *value = ((*value & WL_TXPWR_OVERRIDE) == WL_TXPWR_OVERRIDE ? 1 : 0);
 710
 711                         break;
 712                 }
 713                 case WLCOMPAT_SET_ANTDIV:
 714                 {
 715                         if (wl_ioctl(dev, WLC_SET_ANTDIV, value, sizeof(int)) < 0)
 716                                 return -EINVAL;
 717
 718                         break;
 719                 }
 720                 case WLCOMPAT_GET_ANTDIV:
 721                 {
 722                         if (wl_ioctl(dev, WLC_GET_ANTDIV, extra, sizeof(int)) < 0)
 723                                 return -EINVAL;
 724
 725                         break;
 726                 }
 727                 case WLCOMPAT_SET_TXANT:
 728                 {
 729                         if (wl_ioctl(dev, WLC_SET_TXANT, value, sizeof(int)) < 0)
 730                                 return -EINVAL;
 731
 732                         break;
 733                 }
 734                 case WLCOMPAT_GET_TXANT:
 735                 {
 736                         if (wl_ioctl(dev, WLC_GET_TXANT, extra, sizeof(int)) < 0)
 737                                 return -EINVAL;
 738
 739                         break;
 740                 }
 741                 default:
 742                 {
 743                         return -EINVAL;
 744                 }
 745
 746         }
 747         return 0;
 748 }
 749
 750 static const struct iw_priv_args wlcompat_private_args[] =
 751 {
 752         {       WLCOMPAT_SET_MONITOR,
 753                 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
 754                 0,
 755                 "set_monitor"
 756         },
 757         {       WLCOMPAT_GET_MONITOR,
 758                 0,
 759                 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
 760                 "get_monitor"
 761         },
 762         {       WLCOMPAT_SET_TXPWR_LIMIT,
 763                 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
 764                 0,
 765                 "set_txpwr_force"
 766         },
 767         {       WLCOMPAT_GET_TXPWR_LIMIT,
 768                 0,
 769                 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
 770                 "get_txpwr_force"
 771         },
 772         {       WLCOMPAT_SET_ANTDIV,
 773                 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
 774                 0,
 775                 "set_antdiv"
 776         },
 777         {       WLCOMPAT_GET_ANTDIV,
 778                 0,
 779                 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
 780                 "get_antdiv"
 781         },
 782         {       WLCOMPAT_SET_TXANT,
 783                 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
 784                 0,
 785                 "set_txant"
 786         },
 787         {       WLCOMPAT_GET_TXANT,
 788                 0,
 789                 IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
 790                 "get_txant"
 791         },
 792 };
 793
 794 static const iw_handler wlcompat_private[] =
 795 {
 796         wlcompat_private_ioctl,
 797         NULL
 798 };
 799
 800
 801 static const struct iw_handler_def wlcompat_handler_def =
 802 {
 803         .standard       = (iw_handler *) wlcompat_handler,
 804         .num_standard   = sizeof(wlcompat_handler)/sizeof(iw_handler),
 805         .private        = wlcompat_private,
 806         .num_private    = 1,
 807         .private_args   = wlcompat_private_args,
 808         .num_private_args = sizeof(wlcompat_private_args) / sizeof(wlcompat_private_args[0])
 809 };
 810
 811
 812 #ifdef DEBUG
 813 void print_buffer(int len, unsigned char *buf) {
 814         int x;
 815         if (buf != NULL) {
 816                 for (x=0;x<len && x<180 ;x++) {
 817                         if ((x % 4) == 0)
 818                                 printk(" ");
 819                         printk("%02X",buf[x]);
 820                 }
 821         } else {
 822                 printk(" NULL");
 823         }
 824         printk("\n");
 825
 826 }
 827 #endif
 828 static int (*old_ioctl)(struct net_device *dev, struct ifreq *ifr, int cmd);
 829 static int new_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) {
 830         int ret = 0;
 831         struct iwreq *iwr = (struct iwreq *) ifr;
 832         struct iw_request_info info;
 833
 834 #ifdef DEBUG
 835         printk("dev: %s ioctl: 0x%04x\n",dev->name,cmd);
 836 #endif
 837
 838         if (cmd >= SIOCIWFIRSTPRIV) {
 839                 info.cmd = cmd;
 840                 info.flags = 0;
 841                 ret = wlcompat_private_ioctl(dev, &info, &(iwr->u), (char *) &(iwr->u));
 842 #ifdef DEBUG
 843         } else if (cmd==SIOCDEVPRIVATE) {
 844                 wl_ioctl_t *ioc = (wl_ioctl_t *)ifr->ifr_data;
 845                 unsigned char *buf = ioc->buf;
 846                 printk("   cmd: %d buf: 0x%08x len: %d\n",ioc->cmd,&(ioc->buf),ioc->len);
 847                 printk("   send: ->");
 848                 print_buffer(ioc->len, buf);
 849                 ret = old_ioctl(dev,ifr,cmd);
 850                 printk("   recv: ->");
 851                 print_buffer(ioc->len, buf);
 852                 printk("   ret: %d\n", ret);
 853 #endif
 854         } else {
 855                 ret = old_ioctl(dev,ifr,cmd);
 856         }
 857         return ret;
 858 }
 859
 860 static int __init wlcompat_init()
 861 {
 862         int found = 0, i;
 863         char *devname = "eth0";
 864
 865         while (!found && (dev = dev_get_by_name(devname))) {
 866                 if ((dev->wireless_handlers == NULL) && ((wl_ioctl(dev, WLC_GET_MAGIC, &i, sizeof(i)) == 0) && i == WLC_IOCTL_MAGIC))
 867                         found = 1;
 868                 devname[3]++;
 869         }
 870
 871         if (!found) {
 872                 printk("No Broadcom devices found.\n");
 873                 return -ENODEV;
 874         }
 875
 876
 877         old_ioctl = dev->do_ioctl;
 878         dev->do_ioctl = new_ioctl;
 879         dev->wireless_handlers = (struct iw_handler_def *)&wlcompat_handler_def;
 880 #ifdef DEBUG
 881         printk("broadcom driver private data: 0x%08x\n", dev->priv);
 882 #endif
 883         return 0;
 884 }
 885
 886 static void __exit wlcompat_exit()
 887 {
 888         dev->wireless_handlers = NULL;
 889         dev->do_ioctl = old_ioctl;
 890         return;
 891 }
 892
 893 EXPORT_NO_SYMBOLS;
 894 MODULE_AUTHOR("openwrt.org");
 895 MODULE_LICENSE("GPL");
 896
 897 module_init(wlcompat_init);
 898 module_exit(wlcompat_exit);