SAFE public projects git trees. - safe/jmp/linux-2.6/blob - net/wireless/wext-compat.c

   1 /*
   2  * cfg80211 - wext compat code
   3  *
   4  * This is temporary code until all wireless functionality is migrated
   5  * into cfg80211, when that happens all the exports here go away and
   6  * we directly assign the wireless handlers of wireless interfaces.
   7  *
   8  * Copyright 2008-2009  Johannes Berg <johannes@sipsolutions.net>
   9  */
  10
  11 #include <linux/wireless.h>
  12 #include <linux/nl80211.h>
  13 #include <linux/if_arp.h>
  14 #include <linux/etherdevice.h>
  15 #include <net/iw_handler.h>
  16 #include <net/cfg80211.h>
  17 #include "wext-compat.h"
  18 #include "core.h"
  19
  20 int cfg80211_wext_giwname(struct net_device *dev,
  21                           struct iw_request_info *info,
  22                           char *name, char *extra)
  23 {
  24         struct wireless_dev *wdev = dev->ieee80211_ptr;
  25         struct ieee80211_supported_band *sband;
  26         bool is_ht = false, is_a = false, is_b = false, is_g = false;
  27
  28         if (!wdev)
  29                 return -EOPNOTSUPP;
  30
  31         sband = wdev->wiphy->bands[IEEE80211_BAND_5GHZ];
  32         if (sband) {
  33                 is_a = true;
  34                 is_ht |= sband->ht_cap.ht_supported;
  35         }
  36
  37         sband = wdev->wiphy->bands[IEEE80211_BAND_2GHZ];
  38         if (sband) {
  39                 int i;
  40                 /* Check for mandatory rates */
  41                 for (i = 0; i < sband->n_bitrates; i++) {
  42                         if (sband->bitrates[i].bitrate == 10)
  43                                 is_b = true;
  44                         if (sband->bitrates[i].bitrate == 60)
  45                                 is_g = true;
  46                 }
  47                 is_ht |= sband->ht_cap.ht_supported;
  48         }
  49
  50         strcpy(name, "IEEE 802.11");
  51         if (is_a)
  52                 strcat(name, "a");
  53         if (is_b)
  54                 strcat(name, "b");
  55         if (is_g)
  56                 strcat(name, "g");
  57         if (is_ht)
  58                 strcat(name, "n");
  59
  60         return 0;
  61 }
  62 EXPORT_SYMBOL_GPL(cfg80211_wext_giwname);
  63
  64 int cfg80211_wext_siwmode(struct net_device *dev, struct iw_request_info *info,
  65                           u32 *mode, char *extra)
  66 {
  67         struct wireless_dev *wdev = dev->ieee80211_ptr;
  68         struct cfg80211_registered_device *rdev;
  69         struct vif_params vifparams;
  70         enum nl80211_iftype type;
  71         int ret;
  72
  73         rdev = wiphy_to_dev(wdev->wiphy);
  74
  75         switch (*mode) {
  76         case IW_MODE_INFRA:
  77                 type = NL80211_IFTYPE_STATION;
  78                 break;
  79         case IW_MODE_ADHOC:
  80                 type = NL80211_IFTYPE_ADHOC;
  81                 break;
  82         case IW_MODE_REPEAT:
  83                 type = NL80211_IFTYPE_WDS;
  84                 break;
  85         case IW_MODE_MONITOR:
  86                 type = NL80211_IFTYPE_MONITOR;
  87                 break;
  88         default:
  89                 return -EINVAL;
  90         }
  91
  92         if (type == wdev->iftype)
  93                 return 0;
  94
  95         memset(&vifparams, 0, sizeof(vifparams));
  96
  97         cfg80211_lock_rdev(rdev);
  98         ret = cfg80211_change_iface(rdev, dev, type, NULL, &vifparams);
  99         cfg80211_unlock_rdev(rdev);
 100
 101         return ret;
 102 }
 103 EXPORT_SYMBOL_GPL(cfg80211_wext_siwmode);
 104
 105 int cfg80211_wext_giwmode(struct net_device *dev, struct iw_request_info *info,
 106                           u32 *mode, char *extra)
 107 {
 108         struct wireless_dev *wdev = dev->ieee80211_ptr;
 109
 110         if (!wdev)
 111                 return -EOPNOTSUPP;
 112
 113         switch (wdev->iftype) {
 114         case NL80211_IFTYPE_AP:
 115                 *mode = IW_MODE_MASTER;
 116                 break;
 117         case NL80211_IFTYPE_STATION:
 118                 *mode = IW_MODE_INFRA;
 119                 break;
 120         case NL80211_IFTYPE_ADHOC:
 121                 *mode = IW_MODE_ADHOC;
 122                 break;
 123         case NL80211_IFTYPE_MONITOR:
 124                 *mode = IW_MODE_MONITOR;
 125                 break;
 126         case NL80211_IFTYPE_WDS:
 127                 *mode = IW_MODE_REPEAT;
 128                 break;
 129         case NL80211_IFTYPE_AP_VLAN:
 130                 *mode = IW_MODE_SECOND;         /* FIXME */
 131                 break;
 132         default:
 133                 *mode = IW_MODE_AUTO;
 134                 break;
 135         }
 136         return 0;
 137 }
 138 EXPORT_SYMBOL_GPL(cfg80211_wext_giwmode);
 139
 140
 141 int cfg80211_wext_giwrange(struct net_device *dev,
 142                            struct iw_request_info *info,
 143                            struct iw_point *data, char *extra)
 144 {
 145         struct wireless_dev *wdev = dev->ieee80211_ptr;
 146         struct iw_range *range = (struct iw_range *) extra;
 147         enum ieee80211_band band;
 148         int i, c = 0;
 149
 150         if (!wdev)
 151                 return -EOPNOTSUPP;
 152
 153         data->length = sizeof(struct iw_range);
 154         memset(range, 0, sizeof(struct iw_range));
 155
 156         range->we_version_compiled = WIRELESS_EXT;
 157         range->we_version_source = 21;
 158         range->retry_capa = IW_RETRY_LIMIT;
 159         range->retry_flags = IW_RETRY_LIMIT;
 160         range->min_retry = 0;
 161         range->max_retry = 255;
 162         range->min_rts = 0;
 163         range->max_rts = 2347;
 164         range->min_frag = 256;
 165         range->max_frag = 2346;
 166
 167         range->max_encoding_tokens = 4;
 168
 169         range->max_qual.updated = IW_QUAL_NOISE_INVALID;
 170
 171         switch (wdev->wiphy->signal_type) {
 172         case CFG80211_SIGNAL_TYPE_NONE:
 173                 break;
 174         case CFG80211_SIGNAL_TYPE_MBM:
 175                 range->max_qual.level = -110;
 176                 range->max_qual.qual = 70;
 177                 range->avg_qual.qual = 35;
 178                 range->max_qual.updated |= IW_QUAL_DBM;
 179                 range->max_qual.updated |= IW_QUAL_QUAL_UPDATED;
 180                 range->max_qual.updated |= IW_QUAL_LEVEL_UPDATED;
 181                 break;
 182         case CFG80211_SIGNAL_TYPE_UNSPEC:
 183                 range->max_qual.level = 100;
 184                 range->max_qual.qual = 100;
 185                 range->avg_qual.qual = 50;
 186                 range->max_qual.updated |= IW_QUAL_QUAL_UPDATED;
 187                 range->max_qual.updated |= IW_QUAL_LEVEL_UPDATED;
 188                 break;
 189         }
 190
 191         range->avg_qual.level = range->max_qual.level / 2;
 192         range->avg_qual.noise = range->max_qual.noise / 2;
 193         range->avg_qual.updated = range->max_qual.updated;
 194
 195         for (i = 0; i < wdev->wiphy->n_cipher_suites; i++) {
 196                 switch (wdev->wiphy->cipher_suites[i]) {
 197                 case WLAN_CIPHER_SUITE_TKIP:
 198                         range->enc_capa |= (IW_ENC_CAPA_CIPHER_TKIP |
 199                                             IW_ENC_CAPA_WPA);
 200                         break;
 201
 202                 case WLAN_CIPHER_SUITE_CCMP:
 203                         range->enc_capa |= (IW_ENC_CAPA_CIPHER_CCMP |
 204                                             IW_ENC_CAPA_WPA2);
 205                         break;
 206
 207                 case WLAN_CIPHER_SUITE_WEP40:
 208                         range->encoding_size[range->num_encoding_sizes++] =
 209                                 WLAN_KEY_LEN_WEP40;
 210                         break;
 211
 212                 case WLAN_CIPHER_SUITE_WEP104:
 213                         range->encoding_size[range->num_encoding_sizes++] =
 214                                 WLAN_KEY_LEN_WEP104;
 215                         break;
 216                 }
 217         }
 218
 219         for (band = 0; band < IEEE80211_NUM_BANDS; band ++) {
 220                 struct ieee80211_supported_band *sband;
 221
 222                 sband = wdev->wiphy->bands[band];
 223
 224                 if (!sband)
 225                         continue;
 226
 227                 for (i = 0; i < sband->n_channels && c < IW_MAX_FREQUENCIES; i++) {
 228                         struct ieee80211_channel *chan = &sband->channels[i];
 229
 230                         if (!(chan->flags & IEEE80211_CHAN_DISABLED)) {
 231                                 range->freq[c].i =
 232                                         ieee80211_frequency_to_channel(
 233                                                 chan->center_freq);
 234                                 range->freq[c].m = chan->center_freq;
 235                                 range->freq[c].e = 6;
 236                                 c++;
 237                         }
 238                 }
 239         }
 240         range->num_channels = c;
 241         range->num_frequency = c;
 242
 243         IW_EVENT_CAPA_SET_KERNEL(range->event_capa);
 244         IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWAP);
 245         IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWSCAN);
 246
 247         if (wdev->wiphy->max_scan_ssids > 0)
 248                 range->scan_capa |= IW_SCAN_CAPA_ESSID;
 249
 250         return 0;
 251 }
 252 EXPORT_SYMBOL_GPL(cfg80211_wext_giwrange);
 253
 254
 255 /**
 256  * cfg80211_wext_freq - get wext frequency for non-"auto"
 257  * @wiphy: the wiphy
 258  * @freq: the wext freq encoding
 259  *
 260  * Returns a frequency, or a negative error code, or 0 for auto.
 261  */
 262 int cfg80211_wext_freq(struct wiphy *wiphy, struct iw_freq *freq)
 263 {
 264         /*
 265          * Parse frequency - return 0 for auto and
 266          * -EINVAL for impossible things.
 267          */
 268         if (freq->e == 0) {
 269                 if (freq->m < 0)
 270                         return 0;
 271                 return ieee80211_channel_to_frequency(freq->m);
 272         } else {
 273                 int i, div = 1000000;
 274                 for (i = 0; i < freq->e; i++)
 275                         div /= 10;
 276                 if (div <= 0)
 277                         return -EINVAL;
 278                 return freq->m / div;
 279         }
 280 }
 281
 282 int cfg80211_wext_siwrts(struct net_device *dev,
 283                          struct iw_request_info *info,
 284                          struct iw_param *rts, char *extra)
 285 {
 286         struct wireless_dev *wdev = dev->ieee80211_ptr;
 287         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
 288         u32 orts = wdev->wiphy->rts_threshold;
 289         int err;
 290
 291         if (rts->disabled || !rts->fixed)
 292                 wdev->wiphy->rts_threshold = (u32) -1;
 293         else if (rts->value < 0)
 294                 return -EINVAL;
 295         else
 296                 wdev->wiphy->rts_threshold = rts->value;
 297
 298         err = rdev->ops->set_wiphy_params(wdev->wiphy,
 299                                           WIPHY_PARAM_RTS_THRESHOLD);
 300         if (err)
 301                 wdev->wiphy->rts_threshold = orts;
 302
 303         return err;
 304 }
 305 EXPORT_SYMBOL_GPL(cfg80211_wext_siwrts);
 306
 307 int cfg80211_wext_giwrts(struct net_device *dev,
 308                          struct iw_request_info *info,
 309                          struct iw_param *rts, char *extra)
 310 {
 311         struct wireless_dev *wdev = dev->ieee80211_ptr;
 312
 313         rts->value = wdev->wiphy->rts_threshold;
 314         rts->disabled = rts->value == (u32) -1;
 315         rts->fixed = 1;
 316
 317         return 0;
 318 }
 319 EXPORT_SYMBOL_GPL(cfg80211_wext_giwrts);
 320
 321 int cfg80211_wext_siwfrag(struct net_device *dev,
 322                           struct iw_request_info *info,
 323                           struct iw_param *frag, char *extra)
 324 {
 325         struct wireless_dev *wdev = dev->ieee80211_ptr;
 326         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
 327         u32 ofrag = wdev->wiphy->frag_threshold;
 328         int err;
 329
 330         if (frag->disabled || !frag->fixed)
 331                 wdev->wiphy->frag_threshold = (u32) -1;
 332         else if (frag->value < 256)
 333                 return -EINVAL;
 334         else {
 335                 /* Fragment length must be even, so strip LSB. */
 336                 wdev->wiphy->frag_threshold = frag->value & ~0x1;
 337         }
 338
 339         err = rdev->ops->set_wiphy_params(wdev->wiphy,
 340                                           WIPHY_PARAM_FRAG_THRESHOLD);
 341         if (err)
 342                 wdev->wiphy->frag_threshold = ofrag;
 343
 344         return err;
 345 }
 346 EXPORT_SYMBOL_GPL(cfg80211_wext_siwfrag);
 347
 348 int cfg80211_wext_giwfrag(struct net_device *dev,
 349                           struct iw_request_info *info,
 350                           struct iw_param *frag, char *extra)
 351 {
 352         struct wireless_dev *wdev = dev->ieee80211_ptr;
 353
 354         frag->value = wdev->wiphy->frag_threshold;
 355         frag->disabled = frag->value == (u32) -1;
 356         frag->fixed = 1;
 357
 358         return 0;
 359 }
 360 EXPORT_SYMBOL_GPL(cfg80211_wext_giwfrag);
 361
 362 int cfg80211_wext_siwretry(struct net_device *dev,
 363                            struct iw_request_info *info,
 364                            struct iw_param *retry, char *extra)
 365 {
 366         struct wireless_dev *wdev = dev->ieee80211_ptr;
 367         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
 368         u32 changed = 0;
 369         u8 olong = wdev->wiphy->retry_long;
 370         u8 oshort = wdev->wiphy->retry_short;
 371         int err;
 372
 373         if (retry->disabled ||
 374             (retry->flags & IW_RETRY_TYPE) != IW_RETRY_LIMIT)
 375                 return -EINVAL;
 376
 377         if (retry->flags & IW_RETRY_LONG) {
 378                 wdev->wiphy->retry_long = retry->value;
 379                 changed |= WIPHY_PARAM_RETRY_LONG;
 380         } else if (retry->flags & IW_RETRY_SHORT) {
 381                 wdev->wiphy->retry_short = retry->value;
 382                 changed |= WIPHY_PARAM_RETRY_SHORT;
 383         } else {
 384                 wdev->wiphy->retry_short = retry->value;
 385                 wdev->wiphy->retry_long = retry->value;
 386                 changed |= WIPHY_PARAM_RETRY_LONG;
 387                 changed |= WIPHY_PARAM_RETRY_SHORT;
 388         }
 389
 390         if (!changed)
 391                 return 0;
 392
 393         err = rdev->ops->set_wiphy_params(wdev->wiphy, changed);
 394         if (err) {
 395                 wdev->wiphy->retry_short = oshort;
 396                 wdev->wiphy->retry_long = olong;
 397         }
 398
 399         return err;
 400 }
 401 EXPORT_SYMBOL_GPL(cfg80211_wext_siwretry);
 402
 403 int cfg80211_wext_giwretry(struct net_device *dev,
 404                            struct iw_request_info *info,
 405                            struct iw_param *retry, char *extra)
 406 {
 407         struct wireless_dev *wdev = dev->ieee80211_ptr;
 408
 409         retry->disabled = 0;
 410
 411         if (retry->flags == 0 || (retry->flags & IW_RETRY_SHORT)) {
 412                 /*
 413                  * First return short value, iwconfig will ask long value
 414                  * later if needed
 415                  */
 416                 retry->flags |= IW_RETRY_LIMIT;
 417                 retry->value = wdev->wiphy->retry_short;
 418                 if (wdev->wiphy->retry_long != wdev->wiphy->retry_short)
 419                         retry->flags |= IW_RETRY_LONG;
 420
 421                 return 0;
 422         }
 423
 424         if (retry->flags & IW_RETRY_LONG) {
 425                 retry->flags = IW_RETRY_LIMIT | IW_RETRY_LONG;
 426                 retry->value = wdev->wiphy->retry_long;
 427         }
 428
 429         return 0;
 430 }
 431 EXPORT_SYMBOL_GPL(cfg80211_wext_giwretry);
 432
 433 static int __cfg80211_set_encryption(struct cfg80211_registered_device *rdev,
 434                                      struct net_device *dev, const u8 *addr,
 435                                      bool remove, bool tx_key, int idx,
 436                                      struct key_params *params)
 437 {
 438         struct wireless_dev *wdev = dev->ieee80211_ptr;
 439         int err, i;
 440
 441         if (!wdev->wext.keys) {
 442                 wdev->wext.keys = kzalloc(sizeof(*wdev->wext.keys),
 443                                               GFP_KERNEL);
 444                 if (!wdev->wext.keys)
 445                         return -ENOMEM;
 446                 for (i = 0; i < 6; i++)
 447                         wdev->wext.keys->params[i].key =
 448                                 wdev->wext.keys->data[i];
 449         }
 450
 451         if (wdev->iftype != NL80211_IFTYPE_ADHOC &&
 452             wdev->iftype != NL80211_IFTYPE_STATION)
 453                 return -EOPNOTSUPP;
 454
 455         if (params->cipher == WLAN_CIPHER_SUITE_AES_CMAC) {
 456                 if (!wdev->current_bss)
 457                         return -ENOLINK;
 458
 459                 if (!rdev->ops->set_default_mgmt_key)
 460                         return -EOPNOTSUPP;
 461
 462                 if (idx < 4 || idx > 5)
 463                         return -EINVAL;
 464         } else if (idx < 0 || idx > 3)
 465                 return -EINVAL;
 466
 467         if (remove) {
 468                 err = 0;
 469                 if (wdev->current_bss)
 470                         err = rdev->ops->del_key(&rdev->wiphy, dev, idx, addr);
 471                 if (!err) {
 472                         if (!addr) {
 473                                 wdev->wext.keys->params[idx].key_len = 0;
 474                                 wdev->wext.keys->params[idx].cipher = 0;
 475                         }
 476                         if (idx == wdev->wext.default_key)
 477                                 wdev->wext.default_key = -1;
 478                         else if (idx == wdev->wext.default_mgmt_key)
 479                                 wdev->wext.default_mgmt_key = -1;
 480                 }
 481                 /*
 482                  * Applications using wireless extensions expect to be
 483                  * able to delete keys that don't exist, so allow that.
 484                  */
 485                 if (err == -ENOENT)
 486                         return 0;
 487
 488                 return err;
 489         }
 490
 491         if (addr)
 492                 tx_key = false;
 493
 494         if (cfg80211_validate_key_settings(rdev, params, idx, addr))
 495                 return -EINVAL;
 496
 497         err = 0;
 498         if (wdev->current_bss)
 499                 err = rdev->ops->add_key(&rdev->wiphy, dev, idx, addr, params);
 500         if (err)
 501                 return err;
 502
 503         if (!addr) {
 504                 wdev->wext.keys->params[idx] = *params;
 505                 memcpy(wdev->wext.keys->data[idx],
 506                         params->key, params->key_len);
 507                 wdev->wext.keys->params[idx].key =
 508                         wdev->wext.keys->data[idx];
 509         }
 510
 511         if ((params->cipher == WLAN_CIPHER_SUITE_WEP40 ||
 512              params->cipher == WLAN_CIPHER_SUITE_WEP104) &&
 513             (tx_key || (!addr && wdev->wext.default_key == -1))) {
 514                 if (wdev->current_bss)
 515                         err = rdev->ops->set_default_key(&rdev->wiphy,
 516                                                          dev, idx);
 517                 if (!err)
 518                         wdev->wext.default_key = idx;
 519                 return err;
 520         }
 521
 522         if (params->cipher == WLAN_CIPHER_SUITE_AES_CMAC &&
 523             (tx_key || (!addr && wdev->wext.default_mgmt_key == -1))) {
 524                 if (wdev->current_bss)
 525                         err = rdev->ops->set_default_mgmt_key(&rdev->wiphy,
 526                                                               dev, idx);
 527                 if (!err)
 528                         wdev->wext.default_mgmt_key = idx;
 529                 return err;
 530         }
 531
 532         return 0;
 533 }
 534
 535 static int cfg80211_set_encryption(struct cfg80211_registered_device *rdev,
 536                                    struct net_device *dev, const u8 *addr,
 537                                    bool remove, bool tx_key, int idx,
 538                                    struct key_params *params)
 539 {
 540         int err;
 541
 542         wdev_lock(dev->ieee80211_ptr);
 543         err = __cfg80211_set_encryption(rdev, dev, addr, remove,
 544                                         tx_key, idx, params);
 545         wdev_unlock(dev->ieee80211_ptr);
 546
 547         return err;
 548 }
 549
 550 int cfg80211_wext_siwencode(struct net_device *dev,
 551                             struct iw_request_info *info,
 552                             struct iw_point *erq, char *keybuf)
 553 {
 554         struct wireless_dev *wdev = dev->ieee80211_ptr;
 555         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
 556         int idx, err;
 557         bool remove = false;
 558         struct key_params params;
 559
 560         if (wdev->iftype != NL80211_IFTYPE_STATION &&
 561             wdev->iftype != NL80211_IFTYPE_ADHOC)
 562                 return -EOPNOTSUPP;
 563
 564         /* no use -- only MFP (set_default_mgmt_key) is optional */
 565         if (!rdev->ops->del_key ||
 566             !rdev->ops->add_key ||
 567             !rdev->ops->set_default_key)
 568                 return -EOPNOTSUPP;
 569
 570         idx = erq->flags & IW_ENCODE_INDEX;
 571         if (idx == 0) {
 572                 idx = wdev->wext.default_key;
 573                 if (idx < 0)
 574                         idx = 0;
 575         } else if (idx < 1 || idx > 4)
 576                 return -EINVAL;
 577         else
 578                 idx--;
 579
 580         if (erq->flags & IW_ENCODE_DISABLED)
 581                 remove = true;
 582         else if (erq->length == 0) {
 583                 /* No key data - just set the default TX key index */
 584                 err = 0;
 585                 wdev_lock(wdev);
 586                 if (wdev->current_bss)
 587                         err = rdev->ops->set_default_key(&rdev->wiphy,
 588                                                          dev, idx);
 589                 if (!err)
 590                         wdev->wext.default_key = idx;
 591                 wdev_unlock(wdev);
 592                 return err;
 593         }
 594
 595         memset(&params, 0, sizeof(params));
 596         params.key = keybuf;
 597         params.key_len = erq->length;
 598         if (erq->length == 5)
 599                 params.cipher = WLAN_CIPHER_SUITE_WEP40;
 600         else if (erq->length == 13)
 601                 params.cipher = WLAN_CIPHER_SUITE_WEP104;
 602         else if (!remove)
 603                 return -EINVAL;
 604
 605         return cfg80211_set_encryption(rdev, dev, NULL, remove,
 606                                        wdev->wext.default_key == -1,
 607                                        idx, &params);
 608 }
 609 EXPORT_SYMBOL_GPL(cfg80211_wext_siwencode);
 610
 611 int cfg80211_wext_siwencodeext(struct net_device *dev,
 612                                struct iw_request_info *info,
 613                                struct iw_point *erq, char *extra)
 614 {
 615         struct wireless_dev *wdev = dev->ieee80211_ptr;
 616         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
 617         struct iw_encode_ext *ext = (struct iw_encode_ext *) extra;
 618         const u8 *addr;
 619         int idx;
 620         bool remove = false;
 621         struct key_params params;
 622         u32 cipher;
 623
 624         if (wdev->iftype != NL80211_IFTYPE_STATION &&
 625             wdev->iftype != NL80211_IFTYPE_ADHOC)
 626                 return -EOPNOTSUPP;
 627
 628         /* no use -- only MFP (set_default_mgmt_key) is optional */
 629         if (!rdev->ops->del_key ||
 630             !rdev->ops->add_key ||
 631             !rdev->ops->set_default_key)
 632                 return -EOPNOTSUPP;
 633
 634         switch (ext->alg) {
 635         case IW_ENCODE_ALG_NONE:
 636                 remove = true;
 637                 cipher = 0;
 638                 break;
 639         case IW_ENCODE_ALG_WEP:
 640                 if (ext->key_len == 5)
 641                         cipher = WLAN_CIPHER_SUITE_WEP40;
 642                 else if (ext->key_len == 13)
 643                         cipher = WLAN_CIPHER_SUITE_WEP104;
 644                 else
 645                         return -EINVAL;
 646                 break;
 647         case IW_ENCODE_ALG_TKIP:
 648                 cipher = WLAN_CIPHER_SUITE_TKIP;
 649                 break;
 650         case IW_ENCODE_ALG_CCMP:
 651                 cipher = WLAN_CIPHER_SUITE_CCMP;
 652                 break;
 653         case IW_ENCODE_ALG_AES_CMAC:
 654                 cipher = WLAN_CIPHER_SUITE_AES_CMAC;
 655                 break;
 656         default:
 657                 return -EOPNOTSUPP;
 658         }
 659
 660         if (erq->flags & IW_ENCODE_DISABLED)
 661                 remove = true;
 662
 663         idx = erq->flags & IW_ENCODE_INDEX;
 664         if (cipher == WLAN_CIPHER_SUITE_AES_CMAC) {
 665                 if (idx < 4 || idx > 5) {
 666                         idx = wdev->wext.default_mgmt_key;
 667                         if (idx < 0)
 668                                 return -EINVAL;
 669                 } else
 670                         idx--;
 671         } else {
 672                 if (idx < 1 || idx > 4) {
 673                         idx = wdev->wext.default_key;
 674                         if (idx < 0)
 675                                 return -EINVAL;
 676                 } else
 677                         idx--;
 678         }
 679
 680         addr = ext->addr.sa_data;
 681         if (is_broadcast_ether_addr(addr))
 682                 addr = NULL;
 683
 684         memset(&params, 0, sizeof(params));
 685         params.key = ext->key;
 686         params.key_len = ext->key_len;
 687         params.cipher = cipher;
 688
 689         if (ext->ext_flags & IW_ENCODE_EXT_RX_SEQ_VALID) {
 690                 params.seq = ext->rx_seq;
 691                 params.seq_len = 6;
 692         }
 693
 694         return cfg80211_set_encryption(
 695                         rdev, dev, addr, remove,
 696                         ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY,
 697                         idx, &params);
 698 }
 699 EXPORT_SYMBOL_GPL(cfg80211_wext_siwencodeext);
 700
 701 int cfg80211_wext_giwencode(struct net_device *dev,
 702                             struct iw_request_info *info,
 703                             struct iw_point *erq, char *keybuf)
 704 {
 705         struct wireless_dev *wdev = dev->ieee80211_ptr;
 706         int idx;
 707
 708         if (wdev->iftype != NL80211_IFTYPE_STATION &&
 709             wdev->iftype != NL80211_IFTYPE_ADHOC)
 710                 return -EOPNOTSUPP;
 711
 712         idx = erq->flags & IW_ENCODE_INDEX;
 713         if (idx == 0) {
 714                 idx = wdev->wext.default_key;
 715                 if (idx < 0)
 716                         idx = 0;
 717         } else if (idx < 1 || idx > 4)
 718                 return -EINVAL;
 719         else
 720                 idx--;
 721
 722         erq->flags = idx + 1;
 723
 724         if (!wdev->wext.keys || !wdev->wext.keys->params[idx].cipher) {
 725                 erq->flags |= IW_ENCODE_DISABLED;
 726                 erq->length = 0;
 727                 return 0;
 728         }
 729
 730         erq->length = min_t(size_t, erq->length,
 731                             wdev->wext.keys->params[idx].key_len);
 732         memcpy(keybuf, wdev->wext.keys->params[idx].key, erq->length);
 733         erq->flags |= IW_ENCODE_ENABLED;
 734
 735         return 0;
 736 }
 737 EXPORT_SYMBOL_GPL(cfg80211_wext_giwencode);
 738
 739 int cfg80211_wext_siwfreq(struct net_device *dev,
 740                           struct iw_request_info *info,
 741                           struct iw_freq *wextfreq, char *extra)
 742 {
 743         struct wireless_dev *wdev = dev->ieee80211_ptr;
 744         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
 745         int freq, err;
 746
 747         switch (wdev->iftype) {
 748         case NL80211_IFTYPE_STATION:
 749                 return cfg80211_mgd_wext_siwfreq(dev, info, wextfreq, extra);
 750         case NL80211_IFTYPE_ADHOC:
 751                 return cfg80211_ibss_wext_siwfreq(dev, info, wextfreq, extra);
 752         default:
 753                 freq = cfg80211_wext_freq(wdev->wiphy, wextfreq);
 754                 if (freq < 0)
 755                         return freq;
 756                 if (freq == 0)
 757                         return -EINVAL;
 758                 mutex_lock(&rdev->devlist_mtx);
 759                 err = rdev_set_freq(rdev, NULL, freq, NL80211_CHAN_NO_HT);
 760                 mutex_unlock(&rdev->devlist_mtx);
 761                 return err;
 762         }
 763 }
 764 EXPORT_SYMBOL_GPL(cfg80211_wext_siwfreq);
 765
 766 int cfg80211_wext_giwfreq(struct net_device *dev,
 767                           struct iw_request_info *info,
 768                           struct iw_freq *freq, char *extra)
 769 {
 770         struct wireless_dev *wdev = dev->ieee80211_ptr;
 771         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
 772
 773         switch (wdev->iftype) {
 774         case NL80211_IFTYPE_STATION:
 775                 return cfg80211_mgd_wext_giwfreq(dev, info, freq, extra);
 776         case NL80211_IFTYPE_ADHOC:
 777                 return cfg80211_ibss_wext_giwfreq(dev, info, freq, extra);
 778         default:
 779                 if (!rdev->channel)
 780                         return -EINVAL;
 781                 freq->m = rdev->channel->center_freq;
 782                 freq->e = 6;
 783                 return 0;
 784         }
 785 }
 786 EXPORT_SYMBOL_GPL(cfg80211_wext_giwfreq);
 787
 788 int cfg80211_wext_siwtxpower(struct net_device *dev,
 789                              struct iw_request_info *info,
 790                              union iwreq_data *data, char *extra)
 791 {
 792         struct wireless_dev *wdev = dev->ieee80211_ptr;
 793         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
 794         enum tx_power_setting type;
 795         int dbm = 0;
 796
 797         if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM)
 798                 return -EINVAL;
 799         if (data->txpower.flags & IW_TXPOW_RANGE)
 800                 return -EINVAL;
 801
 802         if (!rdev->ops->set_tx_power)
 803                 return -EOPNOTSUPP;
 804
 805         /* only change when not disabling */
 806         if (!data->txpower.disabled) {
 807                 rfkill_set_sw_state(rdev->rfkill, false);
 808
 809                 if (data->txpower.fixed) {
 810                         /*
 811                          * wext doesn't support negative values, see
 812                          * below where it's for automatic
 813                          */
 814                         if (data->txpower.value < 0)
 815                                 return -EINVAL;
 816                         dbm = data->txpower.value;
 817                         type = TX_POWER_FIXED;
 818                         /* TODO: do regulatory check! */
 819                 } else {
 820                         /*
 821                          * Automatic power level setting, max being the value
 822                          * passed in from userland.
 823                          */
 824                         if (data->txpower.value < 0) {
 825                                 type = TX_POWER_AUTOMATIC;
 826                         } else {
 827                                 dbm = data->txpower.value;
 828                                 type = TX_POWER_LIMITED;
 829                         }
 830                 }
 831         } else {
 832                 rfkill_set_sw_state(rdev->rfkill, true);
 833                 schedule_work(&rdev->rfkill_sync);
 834                 return 0;
 835         }
 836
 837         return rdev->ops->set_tx_power(wdev->wiphy, type, dbm);
 838 }
 839 EXPORT_SYMBOL_GPL(cfg80211_wext_siwtxpower);
 840
 841 int cfg80211_wext_giwtxpower(struct net_device *dev,
 842                              struct iw_request_info *info,
 843                              union iwreq_data *data, char *extra)
 844 {
 845         struct wireless_dev *wdev = dev->ieee80211_ptr;
 846         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
 847         int err, val;
 848
 849         if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM)
 850                 return -EINVAL;
 851         if (data->txpower.flags & IW_TXPOW_RANGE)
 852                 return -EINVAL;
 853
 854         if (!rdev->ops->get_tx_power)
 855                 return -EOPNOTSUPP;
 856
 857         err = rdev->ops->get_tx_power(wdev->wiphy, &val);
 858         if (err)
 859                 return err;
 860
 861         /* well... oh well */
 862         data->txpower.fixed = 1;
 863         data->txpower.disabled = rfkill_blocked(rdev->rfkill);
 864         data->txpower.value = val;
 865         data->txpower.flags = IW_TXPOW_DBM;
 866
 867         return 0;
 868 }
 869 EXPORT_SYMBOL_GPL(cfg80211_wext_giwtxpower);
 870
 871 static int cfg80211_set_auth_alg(struct wireless_dev *wdev,
 872                                  s32 auth_alg)
 873 {
 874         int nr_alg = 0;
 875
 876         if (!auth_alg)
 877                 return -EINVAL;
 878
 879         if (auth_alg & ~(IW_AUTH_ALG_OPEN_SYSTEM |
 880                          IW_AUTH_ALG_SHARED_KEY |
 881                          IW_AUTH_ALG_LEAP))
 882                 return -EINVAL;
 883
 884         if (auth_alg & IW_AUTH_ALG_OPEN_SYSTEM) {
 885                 nr_alg++;
 886                 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
 887         }
 888
 889         if (auth_alg & IW_AUTH_ALG_SHARED_KEY) {
 890                 nr_alg++;
 891                 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_SHARED_KEY;
 892         }
 893
 894         if (auth_alg & IW_AUTH_ALG_LEAP) {
 895                 nr_alg++;
 896                 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_NETWORK_EAP;
 897         }
 898
 899         if (nr_alg > 1)
 900                 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
 901
 902         return 0;
 903 }
 904
 905 static int cfg80211_set_wpa_version(struct wireless_dev *wdev, u32 wpa_versions)
 906 {
 907         wdev->wext.connect.crypto.wpa_versions = 0;
 908
 909         if (wpa_versions & ~(IW_AUTH_WPA_VERSION_WPA |
 910                              IW_AUTH_WPA_VERSION_WPA2|
 911                              IW_AUTH_WPA_VERSION_DISABLED))
 912                 return -EINVAL;
 913
 914         if ((wpa_versions & IW_AUTH_WPA_VERSION_DISABLED) &&
 915             (wpa_versions & (IW_AUTH_WPA_VERSION_WPA|
 916                              IW_AUTH_WPA_VERSION_WPA2)))
 917                 return -EINVAL;
 918
 919         if (wpa_versions & IW_AUTH_WPA_VERSION_DISABLED)
 920                 wdev->wext.connect.crypto.wpa_versions &=
 921                         ~(NL80211_WPA_VERSION_1|NL80211_WPA_VERSION_2);
 922
 923         if (wpa_versions & IW_AUTH_WPA_VERSION_WPA)
 924                 wdev->wext.connect.crypto.wpa_versions |=
 925                         NL80211_WPA_VERSION_1;
 926
 927         if (wpa_versions & IW_AUTH_WPA_VERSION_WPA2)
 928                 wdev->wext.connect.crypto.wpa_versions |=
 929                         NL80211_WPA_VERSION_2;
 930
 931         return 0;
 932 }
 933
 934 static int cfg80211_set_cipher_group(struct wireless_dev *wdev, u32 cipher)
 935 {
 936         wdev->wext.connect.crypto.cipher_group = 0;
 937
 938         if (cipher & IW_AUTH_CIPHER_WEP40)
 939                 wdev->wext.connect.crypto.cipher_group =
 940                         WLAN_CIPHER_SUITE_WEP40;
 941         else if (cipher & IW_AUTH_CIPHER_WEP104)
 942                 wdev->wext.connect.crypto.cipher_group =
 943                         WLAN_CIPHER_SUITE_WEP104;
 944         else if (cipher & IW_AUTH_CIPHER_TKIP)
 945                 wdev->wext.connect.crypto.cipher_group =
 946                         WLAN_CIPHER_SUITE_TKIP;
 947         else if (cipher & IW_AUTH_CIPHER_CCMP)
 948                 wdev->wext.connect.crypto.cipher_group =
 949                         WLAN_CIPHER_SUITE_CCMP;
 950         else if (cipher & IW_AUTH_CIPHER_AES_CMAC)
 951                 wdev->wext.connect.crypto.cipher_group =
 952                         WLAN_CIPHER_SUITE_AES_CMAC;
 953         else
 954                 return -EINVAL;
 955
 956         return 0;
 957 }
 958
 959 static int cfg80211_set_cipher_pairwise(struct wireless_dev *wdev, u32 cipher)
 960 {
 961         int nr_ciphers = 0;
 962         u32 *ciphers_pairwise = wdev->wext.connect.crypto.ciphers_pairwise;
 963
 964         if (cipher & IW_AUTH_CIPHER_WEP40) {
 965                 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_WEP40;
 966                 nr_ciphers++;
 967         }
 968
 969         if (cipher & IW_AUTH_CIPHER_WEP104) {
 970                 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_WEP104;
 971                 nr_ciphers++;
 972         }
 973
 974         if (cipher & IW_AUTH_CIPHER_TKIP) {
 975                 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_TKIP;
 976                 nr_ciphers++;
 977         }
 978
 979         if (cipher & IW_AUTH_CIPHER_CCMP) {
 980                 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_CCMP;
 981                 nr_ciphers++;
 982         }
 983
 984         if (cipher & IW_AUTH_CIPHER_AES_CMAC) {
 985                 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_AES_CMAC;
 986                 nr_ciphers++;
 987         }
 988
 989         BUILD_BUG_ON(NL80211_MAX_NR_CIPHER_SUITES < 5);
 990
 991         wdev->wext.connect.crypto.n_ciphers_pairwise = nr_ciphers;
 992
 993         return 0;
 994 }
 995
 996
 997 static int cfg80211_set_key_mgt(struct wireless_dev *wdev, u32 key_mgt)
 998 {
 999         int nr_akm_suites = 0;
1000
1001         if (key_mgt & ~(IW_AUTH_KEY_MGMT_802_1X |
1002                         IW_AUTH_KEY_MGMT_PSK))
1003                 return -EINVAL;
1004
1005         if (key_mgt & IW_AUTH_KEY_MGMT_802_1X) {
1006                 wdev->wext.connect.crypto.akm_suites[nr_akm_suites] =
1007                         WLAN_AKM_SUITE_8021X;
1008                 nr_akm_suites++;
1009         }
1010
1011         if (key_mgt & IW_AUTH_KEY_MGMT_PSK) {
1012                 wdev->wext.connect.crypto.akm_suites[nr_akm_suites] =
1013                         WLAN_AKM_SUITE_PSK;
1014                 nr_akm_suites++;
1015         }
1016
1017         wdev->wext.connect.crypto.n_akm_suites = nr_akm_suites;
1018
1019         return 0;
1020 }
1021
1022 int cfg80211_wext_siwauth(struct net_device *dev,
1023                           struct iw_request_info *info,
1024                           struct iw_param *data, char *extra)
1025 {
1026         struct wireless_dev *wdev = dev->ieee80211_ptr;
1027
1028         if (wdev->iftype != NL80211_IFTYPE_STATION)
1029                 return -EOPNOTSUPP;
1030
1031         switch (data->flags & IW_AUTH_INDEX) {
1032         case IW_AUTH_PRIVACY_INVOKED:
1033                 wdev->wext.connect.privacy = data->value;
1034                 return 0;
1035         case IW_AUTH_WPA_VERSION:
1036                 return cfg80211_set_wpa_version(wdev, data->value);
1037         case IW_AUTH_CIPHER_GROUP:
1038                 return cfg80211_set_cipher_group(wdev, data->value);
1039         case IW_AUTH_KEY_MGMT:
1040                 return cfg80211_set_key_mgt(wdev, data->value);
1041         case IW_AUTH_CIPHER_PAIRWISE:
1042                 return cfg80211_set_cipher_pairwise(wdev, data->value);
1043         case IW_AUTH_80211_AUTH_ALG:
1044                 return cfg80211_set_auth_alg(wdev, data->value);
1045         case IW_AUTH_WPA_ENABLED:
1046         case IW_AUTH_RX_UNENCRYPTED_EAPOL:
1047         case IW_AUTH_DROP_UNENCRYPTED:
1048         case IW_AUTH_MFP:
1049                 return 0;
1050         default:
1051                 return -EOPNOTSUPP;
1052         }
1053 }
1054 EXPORT_SYMBOL_GPL(cfg80211_wext_siwauth);
1055
1056 int cfg80211_wext_giwauth(struct net_device *dev,
1057                           struct iw_request_info *info,
1058                           struct iw_param *data, char *extra)
1059 {
1060         /* XXX: what do we need? */
1061
1062         return -EOPNOTSUPP;
1063 }
1064 EXPORT_SYMBOL_GPL(cfg80211_wext_giwauth);
1065
1066 int cfg80211_wext_siwpower(struct net_device *dev,
1067                            struct iw_request_info *info,
1068                            struct iw_param *wrq, char *extra)
1069 {
1070         struct wireless_dev *wdev = dev->ieee80211_ptr;
1071         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1072         bool ps = wdev->wext.ps;
1073         int timeout = wdev->wext.ps_timeout;
1074         int err;
1075
1076         if (wdev->iftype != NL80211_IFTYPE_STATION)
1077                 return -EINVAL;
1078
1079         if (!rdev->ops->set_power_mgmt)
1080                 return -EOPNOTSUPP;
1081
1082         if (wrq->disabled) {
1083                 ps = false;
1084         } else {
1085                 switch (wrq->flags & IW_POWER_MODE) {
1086                 case IW_POWER_ON:       /* If not specified */
1087                 case IW_POWER_MODE:     /* If set all mask */
1088                 case IW_POWER_ALL_R:    /* If explicitely state all */
1089                         ps = true;
1090                         break;
1091                 default:                /* Otherwise we ignore */
1092                         return -EINVAL;
1093                 }
1094
1095                 if (wrq->flags & ~(IW_POWER_MODE | IW_POWER_TIMEOUT))
1096                         return -EINVAL;
1097
1098                 if (wrq->flags & IW_POWER_TIMEOUT)
1099                         timeout = wrq->value / 1000;
1100         }
1101
1102         err = rdev->ops->set_power_mgmt(wdev->wiphy, dev, ps, timeout);
1103         if (err)
1104                 return err;
1105
1106         wdev->wext.ps = ps;
1107         wdev->wext.ps_timeout = timeout;
1108
1109         return 0;
1110
1111 }
1112 EXPORT_SYMBOL_GPL(cfg80211_wext_siwpower);
1113
1114 int cfg80211_wext_giwpower(struct net_device *dev,
1115                            struct iw_request_info *info,
1116                            struct iw_param *wrq, char *extra)
1117 {
1118         struct wireless_dev *wdev = dev->ieee80211_ptr;
1119
1120         wrq->disabled = !wdev->wext.ps;
1121
1122         return 0;
1123 }
1124 EXPORT_SYMBOL_GPL(cfg80211_wext_giwpower);
1125
1126 static int cfg80211_wds_wext_siwap(struct net_device *dev,
1127                                    struct iw_request_info *info,
1128                                    struct sockaddr *addr, char *extra)
1129 {
1130         struct wireless_dev *wdev = dev->ieee80211_ptr;
1131         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1132         int err;
1133
1134         if (WARN_ON(wdev->iftype != NL80211_IFTYPE_WDS))
1135                 return -EINVAL;
1136
1137         if (addr->sa_family != ARPHRD_ETHER)
1138                 return -EINVAL;
1139
1140         if (netif_running(dev))
1141                 return -EBUSY;
1142
1143         if (!rdev->ops->set_wds_peer)
1144                 return -EOPNOTSUPP;
1145
1146         err = rdev->ops->set_wds_peer(wdev->wiphy, dev, (u8 *) &addr->sa_data);
1147         if (err)
1148                 return err;
1149
1150         memcpy(&wdev->wext.bssid, (u8 *) &addr->sa_data, ETH_ALEN);
1151
1152         return 0;
1153 }
1154
1155 static int cfg80211_wds_wext_giwap(struct net_device *dev,
1156                                    struct iw_request_info *info,
1157                                    struct sockaddr *addr, char *extra)
1158 {
1159         struct wireless_dev *wdev = dev->ieee80211_ptr;
1160
1161         if (WARN_ON(wdev->iftype != NL80211_IFTYPE_WDS))
1162                 return -EINVAL;
1163
1164         addr->sa_family = ARPHRD_ETHER;
1165         memcpy(&addr->sa_data, wdev->wext.bssid, ETH_ALEN);
1166
1167         return 0;
1168 }
1169
1170 int cfg80211_wext_siwrate(struct net_device *dev,
1171                           struct iw_request_info *info,
1172                           struct iw_param *rate, char *extra)
1173 {
1174         struct wireless_dev *wdev = dev->ieee80211_ptr;
1175         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1176         struct cfg80211_bitrate_mask mask;
1177
1178         if (!rdev->ops->set_bitrate_mask)
1179                 return -EOPNOTSUPP;
1180
1181         mask.fixed = 0;
1182         mask.maxrate = 0;
1183
1184         if (rate->value < 0) {
1185                 /* nothing */
1186         } else if (rate->fixed) {
1187                 mask.fixed = rate->value / 1000; /* kbps */
1188         } else {
1189                 mask.maxrate = rate->value / 1000; /* kbps */
1190         }
1191
1192         return rdev->ops->set_bitrate_mask(wdev->wiphy, dev, NULL, &mask);
1193 }
1194 EXPORT_SYMBOL_GPL(cfg80211_wext_siwrate);
1195
1196 int cfg80211_wext_giwrate(struct net_device *dev,
1197                           struct iw_request_info *info,
1198                           struct iw_param *rate, char *extra)
1199 {
1200         struct wireless_dev *wdev = dev->ieee80211_ptr;
1201         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1202         /* we are under RTNL - globally locked - so can use a static struct */
1203         static struct station_info sinfo;
1204         u8 addr[ETH_ALEN];
1205         int err;
1206
1207         if (wdev->iftype != NL80211_IFTYPE_STATION)
1208                 return -EOPNOTSUPP;
1209
1210         if (!rdev->ops->get_station)
1211                 return -EOPNOTSUPP;
1212
1213         err = 0;
1214         wdev_lock(wdev);
1215         if (wdev->current_bss)
1216                 memcpy(addr, wdev->current_bss->pub.bssid, ETH_ALEN);
1217         else
1218                 err = -EOPNOTSUPP;
1219         wdev_unlock(wdev);
1220         if (err)
1221                 return err;
1222
1223         err = rdev->ops->get_station(&rdev->wiphy, dev, addr, &sinfo);
1224         if (err)
1225                 return err;
1226
1227         if (!(sinfo.filled & STATION_INFO_TX_BITRATE))
1228                 return -EOPNOTSUPP;
1229
1230         rate->value = 0;
1231
1232         if (!(sinfo.txrate.flags & RATE_INFO_FLAGS_MCS))
1233                 rate->value = 100000 * sinfo.txrate.legacy;
1234
1235         return 0;
1236 }
1237 EXPORT_SYMBOL_GPL(cfg80211_wext_giwrate);
1238
1239 /* Get wireless statistics.  Called by /proc/net/wireless and by SIOCGIWSTATS */
1240 struct iw_statistics *cfg80211_wireless_stats(struct net_device *dev)
1241 {
1242         struct wireless_dev *wdev = dev->ieee80211_ptr;
1243         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1244         /* we are under RTNL - globally locked - so can use static structs */
1245         static struct iw_statistics wstats;
1246         static struct station_info sinfo;
1247         u8 bssid[ETH_ALEN];
1248
1249         if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION)
1250                 return NULL;
1251
1252         if (!rdev->ops->get_station)
1253                 return NULL;
1254
1255         /* Grab BSSID of current BSS, if any */
1256         wdev_lock(wdev);
1257         if (!wdev->current_bss) {
1258                 wdev_unlock(wdev);
1259                 return NULL;
1260         }
1261         memcpy(bssid, wdev->current_bss->pub.bssid, ETH_ALEN);
1262         wdev_unlock(wdev);
1263
1264         if (rdev->ops->get_station(&rdev->wiphy, dev, bssid, &sinfo))
1265                 return NULL;
1266
1267         memset(&wstats, 0, sizeof(wstats));
1268
1269         switch (rdev->wiphy.signal_type) {
1270         case CFG80211_SIGNAL_TYPE_MBM:
1271                 if (sinfo.filled & STATION_INFO_SIGNAL) {
1272                         int sig = sinfo.signal;
1273                         wstats.qual.updated |= IW_QUAL_LEVEL_UPDATED;
1274                         wstats.qual.updated |= IW_QUAL_QUAL_UPDATED;
1275                         wstats.qual.updated |= IW_QUAL_DBM;
1276                         wstats.qual.level = sig;
1277                         if (sig < -110)
1278                                 sig = -110;
1279                         else if (sig > -40)
1280                                 sig = -40;
1281                         wstats.qual.qual = sig + 110;
1282                         break;
1283                 }
1284         case CFG80211_SIGNAL_TYPE_UNSPEC:
1285                 if (sinfo.filled & STATION_INFO_SIGNAL) {
1286                         wstats.qual.updated |= IW_QUAL_LEVEL_UPDATED;
1287                         wstats.qual.updated |= IW_QUAL_QUAL_UPDATED;
1288                         wstats.qual.level = sinfo.signal;
1289                         wstats.qual.qual = sinfo.signal;
1290                         break;
1291                 }
1292         default:
1293                 wstats.qual.updated |= IW_QUAL_LEVEL_INVALID;
1294                 wstats.qual.updated |= IW_QUAL_QUAL_INVALID;
1295         }
1296
1297         wstats.qual.updated |= IW_QUAL_NOISE_INVALID;
1298
1299         return &wstats;
1300 }
1301 EXPORT_SYMBOL_GPL(cfg80211_wireless_stats);
1302
1303 int cfg80211_wext_siwap(struct net_device *dev,
1304                         struct iw_request_info *info,
1305                         struct sockaddr *ap_addr, char *extra)
1306 {
1307         struct wireless_dev *wdev = dev->ieee80211_ptr;
1308
1309         switch (wdev->iftype) {
1310         case NL80211_IFTYPE_ADHOC:
1311                 return cfg80211_ibss_wext_siwap(dev, info, ap_addr, extra);
1312         case NL80211_IFTYPE_STATION:
1313                 return cfg80211_mgd_wext_siwap(dev, info, ap_addr, extra);
1314         case NL80211_IFTYPE_WDS:
1315                 return cfg80211_wds_wext_siwap(dev, info, ap_addr, extra);
1316         default:
1317                 return -EOPNOTSUPP;
1318         }
1319 }
1320 EXPORT_SYMBOL_GPL(cfg80211_wext_siwap);
1321
1322 int cfg80211_wext_giwap(struct net_device *dev,
1323                         struct iw_request_info *info,
1324                         struct sockaddr *ap_addr, char *extra)
1325 {
1326         struct wireless_dev *wdev = dev->ieee80211_ptr;
1327
1328         switch (wdev->iftype) {
1329         case NL80211_IFTYPE_ADHOC:
1330                 return cfg80211_ibss_wext_giwap(dev, info, ap_addr, extra);
1331         case NL80211_IFTYPE_STATION:
1332                 return cfg80211_mgd_wext_giwap(dev, info, ap_addr, extra);
1333         case NL80211_IFTYPE_WDS:
1334                 return cfg80211_wds_wext_giwap(dev, info, ap_addr, extra);
1335         default:
1336                 return -EOPNOTSUPP;
1337         }
1338 }
1339 EXPORT_SYMBOL_GPL(cfg80211_wext_giwap);
1340
1341 int cfg80211_wext_siwessid(struct net_device *dev,
1342                            struct iw_request_info *info,
1343                            struct iw_point *data, char *ssid)
1344 {
1345         struct wireless_dev *wdev = dev->ieee80211_ptr;
1346
1347         switch (wdev->iftype) {
1348         case NL80211_IFTYPE_ADHOC:
1349                 return cfg80211_ibss_wext_siwessid(dev, info, data, ssid);
1350         case NL80211_IFTYPE_STATION:
1351                 return cfg80211_mgd_wext_siwessid(dev, info, data, ssid);
1352         default:
1353                 return -EOPNOTSUPP;
1354         }
1355 }
1356 EXPORT_SYMBOL_GPL(cfg80211_wext_siwessid);
1357
1358 int cfg80211_wext_giwessid(struct net_device *dev,
1359                            struct iw_request_info *info,
1360                            struct iw_point *data, char *ssid)
1361 {
1362         struct wireless_dev *wdev = dev->ieee80211_ptr;
1363
1364         switch (wdev->iftype) {
1365         case NL80211_IFTYPE_ADHOC:
1366                 return cfg80211_ibss_wext_giwessid(dev, info, data, ssid);
1367         case NL80211_IFTYPE_STATION:
1368                 return cfg80211_mgd_wext_giwessid(dev, info, data, ssid);
1369         default:
1370                 return -EOPNOTSUPP;
1371         }
1372 }
1373 EXPORT_SYMBOL_GPL(cfg80211_wext_giwessid);
1374
1375 static const iw_handler cfg80211_handlers[] = {
1376         [IW_IOCTL_IDX(SIOCGIWNAME)]     = (iw_handler) cfg80211_wext_giwname,
1377         [IW_IOCTL_IDX(SIOCSIWFREQ)]     = (iw_handler) cfg80211_wext_siwfreq,
1378         [IW_IOCTL_IDX(SIOCGIWFREQ)]     = (iw_handler) cfg80211_wext_giwfreq,
1379         [IW_IOCTL_IDX(SIOCSIWMODE)]     = (iw_handler) cfg80211_wext_siwmode,
1380         [IW_IOCTL_IDX(SIOCGIWMODE)]     = (iw_handler) cfg80211_wext_giwmode,
1381         [IW_IOCTL_IDX(SIOCGIWRANGE)]    = (iw_handler) cfg80211_wext_giwrange,
1382         [IW_IOCTL_IDX(SIOCSIWAP)]       = (iw_handler) cfg80211_wext_siwap,
1383         [IW_IOCTL_IDX(SIOCGIWAP)]       = (iw_handler) cfg80211_wext_giwap,
1384         [IW_IOCTL_IDX(SIOCSIWMLME)]     = (iw_handler) cfg80211_wext_siwmlme,
1385         [IW_IOCTL_IDX(SIOCSIWSCAN)]     = (iw_handler) cfg80211_wext_siwscan,
1386         [IW_IOCTL_IDX(SIOCGIWSCAN)]     = (iw_handler) cfg80211_wext_giwscan,
1387         [IW_IOCTL_IDX(SIOCSIWESSID)]    = (iw_handler) cfg80211_wext_siwessid,
1388         [IW_IOCTL_IDX(SIOCGIWESSID)]    = (iw_handler) cfg80211_wext_giwessid,
1389         [IW_IOCTL_IDX(SIOCSIWRATE)]     = (iw_handler) cfg80211_wext_siwrate,
1390         [IW_IOCTL_IDX(SIOCGIWRATE)]     = (iw_handler) cfg80211_wext_giwrate,
1391         [IW_IOCTL_IDX(SIOCSIWRTS)]      = (iw_handler) cfg80211_wext_siwrts,
1392         [IW_IOCTL_IDX(SIOCGIWRTS)]      = (iw_handler) cfg80211_wext_giwrts,
1393         [IW_IOCTL_IDX(SIOCSIWFRAG)]     = (iw_handler) cfg80211_wext_siwfrag,
1394         [IW_IOCTL_IDX(SIOCGIWFRAG)]     = (iw_handler) cfg80211_wext_giwfrag,
1395         [IW_IOCTL_IDX(SIOCSIWTXPOW)]    = (iw_handler) cfg80211_wext_siwtxpower,
1396         [IW_IOCTL_IDX(SIOCGIWTXPOW)]    = (iw_handler) cfg80211_wext_giwtxpower,
1397         [IW_IOCTL_IDX(SIOCSIWRETRY)]    = (iw_handler) cfg80211_wext_siwretry,
1398         [IW_IOCTL_IDX(SIOCGIWRETRY)]    = (iw_handler) cfg80211_wext_giwretry,
1399         [IW_IOCTL_IDX(SIOCSIWENCODE)]   = (iw_handler) cfg80211_wext_siwencode,
1400         [IW_IOCTL_IDX(SIOCGIWENCODE)]   = (iw_handler) cfg80211_wext_giwencode,
1401         [IW_IOCTL_IDX(SIOCSIWPOWER)]    = (iw_handler) cfg80211_wext_siwpower,
1402         [IW_IOCTL_IDX(SIOCGIWPOWER)]    = (iw_handler) cfg80211_wext_giwpower,
1403         [IW_IOCTL_IDX(SIOCSIWGENIE)]    = (iw_handler) cfg80211_wext_siwgenie,
1404         [IW_IOCTL_IDX(SIOCSIWAUTH)]     = (iw_handler) cfg80211_wext_siwauth,
1405         [IW_IOCTL_IDX(SIOCGIWAUTH)]     = (iw_handler) cfg80211_wext_giwauth,
1406         [IW_IOCTL_IDX(SIOCSIWENCODEEXT)]= (iw_handler) cfg80211_wext_siwencodeext,
1407 };
1408
1409 const struct iw_handler_def cfg80211_wext_handler = {
1410         .num_standard           = ARRAY_SIZE(cfg80211_handlers),
1411         .standard               = cfg80211_handlers,
1412         .get_wireless_stats = cfg80211_wireless_stats,
1413 };