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