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         bool rejoin = false;
 441
 442         if (!wdev->wext.keys) {
 443                 wdev->wext.keys = kzalloc(sizeof(*wdev->wext.keys),
 444                                               GFP_KERNEL);
 445                 if (!wdev->wext.keys)
 446                         return -ENOMEM;
 447                 for (i = 0; i < 6; i++)
 448                         wdev->wext.keys->params[i].key =
 449                                 wdev->wext.keys->data[i];
 450         }
 451
 452         if (wdev->iftype != NL80211_IFTYPE_ADHOC &&
 453             wdev->iftype != NL80211_IFTYPE_STATION)
 454                 return -EOPNOTSUPP;
 455
 456         if (params->cipher == WLAN_CIPHER_SUITE_AES_CMAC) {
 457                 if (!wdev->current_bss)
 458                         return -ENOLINK;
 459
 460                 if (!rdev->ops->set_default_mgmt_key)
 461                         return -EOPNOTSUPP;
 462
 463                 if (idx < 4 || idx > 5)
 464                         return -EINVAL;
 465         } else if (idx < 0 || idx > 3)
 466                 return -EINVAL;
 467
 468         if (remove) {
 469                 err = 0;
 470                 if (wdev->current_bss) {
 471                         /*
 472                          * If removing the current TX key, we will need to
 473                          * join a new IBSS without the privacy bit clear.
 474                          */
 475                         if (idx == wdev->wext.default_key &&
 476                             wdev->iftype == NL80211_IFTYPE_ADHOC) {
 477                                 __cfg80211_leave_ibss(rdev, wdev->netdev, true);
 478                                 rejoin = true;
 479                         }
 480                         err = rdev->ops->del_key(&rdev->wiphy, dev, idx, addr);
 481                 }
 482                 wdev->wext.connect.privacy = false;
 483                 /*
 484                  * Applications using wireless extensions expect to be
 485                  * able to delete keys that don't exist, so allow that.
 486                  */
 487                 if (err == -ENOENT)
 488                         err = 0;
 489                 if (!err) {
 490                         if (!addr) {
 491                                 wdev->wext.keys->params[idx].key_len = 0;
 492                                 wdev->wext.keys->params[idx].cipher = 0;
 493                         }
 494                         if (idx == wdev->wext.default_key)
 495                                 wdev->wext.default_key = -1;
 496                         else if (idx == wdev->wext.default_mgmt_key)
 497                                 wdev->wext.default_mgmt_key = -1;
 498                 }
 499
 500                 if (!err && rejoin)
 501                         err = cfg80211_ibss_wext_join(rdev, wdev);
 502
 503                 return err;
 504         }
 505
 506         if (addr)
 507                 tx_key = false;
 508
 509         if (cfg80211_validate_key_settings(rdev, params, idx, addr))
 510                 return -EINVAL;
 511
 512         err = 0;
 513         if (wdev->current_bss)
 514                 err = rdev->ops->add_key(&rdev->wiphy, dev, idx, addr, params);
 515         if (err)
 516                 return err;
 517
 518         if (!addr) {
 519                 wdev->wext.keys->params[idx] = *params;
 520                 memcpy(wdev->wext.keys->data[idx],
 521                         params->key, params->key_len);
 522                 wdev->wext.keys->params[idx].key =
 523                         wdev->wext.keys->data[idx];
 524         }
 525
 526         if ((params->cipher == WLAN_CIPHER_SUITE_WEP40 ||
 527              params->cipher == WLAN_CIPHER_SUITE_WEP104) &&
 528             (tx_key || (!addr && wdev->wext.default_key == -1))) {
 529                 if (wdev->current_bss) {
 530                         /*
 531                          * If we are getting a new TX key from not having
 532                          * had one before we need to join a new IBSS with
 533                          * the privacy bit set.
 534                          */
 535                         if (wdev->iftype == NL80211_IFTYPE_ADHOC &&
 536                             wdev->wext.default_key == -1) {
 537                                 __cfg80211_leave_ibss(rdev, wdev->netdev, true);
 538                                 rejoin = true;
 539                         }
 540                         err = rdev->ops->set_default_key(&rdev->wiphy,
 541                                                          dev, idx);
 542                 }
 543                 if (!err) {
 544                         wdev->wext.default_key = idx;
 545                         if (rejoin)
 546                                 err = cfg80211_ibss_wext_join(rdev, wdev);
 547                 }
 548                 return err;
 549         }
 550
 551         if (params->cipher == WLAN_CIPHER_SUITE_AES_CMAC &&
 552             (tx_key || (!addr && wdev->wext.default_mgmt_key == -1))) {
 553                 if (wdev->current_bss)
 554                         err = rdev->ops->set_default_mgmt_key(&rdev->wiphy,
 555                                                               dev, idx);
 556                 if (!err)
 557                         wdev->wext.default_mgmt_key = idx;
 558                 return err;
 559         }
 560
 561         return 0;
 562 }
 563
 564 static int cfg80211_set_encryption(struct cfg80211_registered_device *rdev,
 565                                    struct net_device *dev, const u8 *addr,
 566                                    bool remove, bool tx_key, int idx,
 567                                    struct key_params *params)
 568 {
 569         int err;
 570
 571         /* devlist mutex needed for possible IBSS re-join */
 572         mutex_lock(&rdev->devlist_mtx);
 573         wdev_lock(dev->ieee80211_ptr);
 574         err = __cfg80211_set_encryption(rdev, dev, addr, remove,
 575                                         tx_key, idx, params);
 576         wdev_unlock(dev->ieee80211_ptr);
 577         mutex_unlock(&rdev->devlist_mtx);
 578
 579         return err;
 580 }
 581
 582 int cfg80211_wext_siwencode(struct net_device *dev,
 583                             struct iw_request_info *info,
 584                             struct iw_point *erq, char *keybuf)
 585 {
 586         struct wireless_dev *wdev = dev->ieee80211_ptr;
 587         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
 588         int idx, err;
 589         bool remove = false;
 590         struct key_params params;
 591
 592         if (wdev->iftype != NL80211_IFTYPE_STATION &&
 593             wdev->iftype != NL80211_IFTYPE_ADHOC)
 594                 return -EOPNOTSUPP;
 595
 596         /* no use -- only MFP (set_default_mgmt_key) is optional */
 597         if (!rdev->ops->del_key ||
 598             !rdev->ops->add_key ||
 599             !rdev->ops->set_default_key)
 600                 return -EOPNOTSUPP;
 601
 602         idx = erq->flags & IW_ENCODE_INDEX;
 603         if (idx == 0) {
 604                 idx = wdev->wext.default_key;
 605                 if (idx < 0)
 606                         idx = 0;
 607         } else if (idx < 1 || idx > 4)
 608                 return -EINVAL;
 609         else
 610                 idx--;
 611
 612         if (erq->flags & IW_ENCODE_DISABLED)
 613                 remove = true;
 614         else if (erq->length == 0) {
 615                 /* No key data - just set the default TX key index */
 616                 err = 0;
 617                 wdev_lock(wdev);
 618                 if (wdev->current_bss)
 619                         err = rdev->ops->set_default_key(&rdev->wiphy,
 620                                                          dev, idx);
 621                 if (!err)
 622                         wdev->wext.default_key = idx;
 623                 wdev_unlock(wdev);
 624                 return err;
 625         }
 626
 627         memset(&params, 0, sizeof(params));
 628         params.key = keybuf;
 629         params.key_len = erq->length;
 630         if (erq->length == 5)
 631                 params.cipher = WLAN_CIPHER_SUITE_WEP40;
 632         else if (erq->length == 13)
 633                 params.cipher = WLAN_CIPHER_SUITE_WEP104;
 634         else if (!remove)
 635                 return -EINVAL;
 636
 637         return cfg80211_set_encryption(rdev, dev, NULL, remove,
 638                                        wdev->wext.default_key == -1,
 639                                        idx, &params);
 640 }
 641 EXPORT_SYMBOL_GPL(cfg80211_wext_siwencode);
 642
 643 int cfg80211_wext_siwencodeext(struct net_device *dev,
 644                                struct iw_request_info *info,
 645                                struct iw_point *erq, char *extra)
 646 {
 647         struct wireless_dev *wdev = dev->ieee80211_ptr;
 648         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
 649         struct iw_encode_ext *ext = (struct iw_encode_ext *) extra;
 650         const u8 *addr;
 651         int idx;
 652         bool remove = false;
 653         struct key_params params;
 654         u32 cipher;
 655
 656         if (wdev->iftype != NL80211_IFTYPE_STATION &&
 657             wdev->iftype != NL80211_IFTYPE_ADHOC)
 658                 return -EOPNOTSUPP;
 659
 660         /* no use -- only MFP (set_default_mgmt_key) is optional */
 661         if (!rdev->ops->del_key ||
 662             !rdev->ops->add_key ||
 663             !rdev->ops->set_default_key)
 664                 return -EOPNOTSUPP;
 665
 666         switch (ext->alg) {
 667         case IW_ENCODE_ALG_NONE:
 668                 remove = true;
 669                 cipher = 0;
 670                 break;
 671         case IW_ENCODE_ALG_WEP:
 672                 if (ext->key_len == 5)
 673                         cipher = WLAN_CIPHER_SUITE_WEP40;
 674                 else if (ext->key_len == 13)
 675                         cipher = WLAN_CIPHER_SUITE_WEP104;
 676                 else
 677                         return -EINVAL;
 678                 break;
 679         case IW_ENCODE_ALG_TKIP:
 680                 cipher = WLAN_CIPHER_SUITE_TKIP;
 681                 break;
 682         case IW_ENCODE_ALG_CCMP:
 683                 cipher = WLAN_CIPHER_SUITE_CCMP;
 684                 break;
 685         case IW_ENCODE_ALG_AES_CMAC:
 686                 cipher = WLAN_CIPHER_SUITE_AES_CMAC;
 687                 break;
 688         default:
 689                 return -EOPNOTSUPP;
 690         }
 691
 692         if (erq->flags & IW_ENCODE_DISABLED)
 693                 remove = true;
 694
 695         idx = erq->flags & IW_ENCODE_INDEX;
 696         if (cipher == WLAN_CIPHER_SUITE_AES_CMAC) {
 697                 if (idx < 4 || idx > 5) {
 698                         idx = wdev->wext.default_mgmt_key;
 699                         if (idx < 0)
 700                                 return -EINVAL;
 701                 } else
 702                         idx--;
 703         } else {
 704                 if (idx < 1 || idx > 4) {
 705                         idx = wdev->wext.default_key;
 706                         if (idx < 0)
 707                                 return -EINVAL;
 708                 } else
 709                         idx--;
 710         }
 711
 712         addr = ext->addr.sa_data;
 713         if (is_broadcast_ether_addr(addr))
 714                 addr = NULL;
 715
 716         memset(&params, 0, sizeof(params));
 717         params.key = ext->key;
 718         params.key_len = ext->key_len;
 719         params.cipher = cipher;
 720
 721         if (ext->ext_flags & IW_ENCODE_EXT_RX_SEQ_VALID) {
 722                 params.seq = ext->rx_seq;
 723                 params.seq_len = 6;
 724         }
 725
 726         return cfg80211_set_encryption(
 727                         rdev, dev, addr, remove,
 728                         ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY,
 729                         idx, &params);
 730 }
 731 EXPORT_SYMBOL_GPL(cfg80211_wext_siwencodeext);
 732
 733 int cfg80211_wext_giwencode(struct net_device *dev,
 734                             struct iw_request_info *info,
 735                             struct iw_point *erq, char *keybuf)
 736 {
 737         struct wireless_dev *wdev = dev->ieee80211_ptr;
 738         int idx;
 739
 740         if (wdev->iftype != NL80211_IFTYPE_STATION &&
 741             wdev->iftype != NL80211_IFTYPE_ADHOC)
 742                 return -EOPNOTSUPP;
 743
 744         idx = erq->flags & IW_ENCODE_INDEX;
 745         if (idx == 0) {
 746                 idx = wdev->wext.default_key;
 747                 if (idx < 0)
 748                         idx = 0;
 749         } else if (idx < 1 || idx > 4)
 750                 return -EINVAL;
 751         else
 752                 idx--;
 753
 754         erq->flags = idx + 1;
 755
 756         if (!wdev->wext.keys || !wdev->wext.keys->params[idx].cipher) {
 757                 erq->flags |= IW_ENCODE_DISABLED;
 758                 erq->length = 0;
 759                 return 0;
 760         }
 761
 762         erq->length = min_t(size_t, erq->length,
 763                             wdev->wext.keys->params[idx].key_len);
 764         memcpy(keybuf, wdev->wext.keys->params[idx].key, erq->length);
 765         erq->flags |= IW_ENCODE_ENABLED;
 766
 767         return 0;
 768 }
 769 EXPORT_SYMBOL_GPL(cfg80211_wext_giwencode);
 770
 771 int cfg80211_wext_siwfreq(struct net_device *dev,
 772                           struct iw_request_info *info,
 773                           struct iw_freq *wextfreq, char *extra)
 774 {
 775         struct wireless_dev *wdev = dev->ieee80211_ptr;
 776         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
 777         int freq, err;
 778
 779         switch (wdev->iftype) {
 780         case NL80211_IFTYPE_STATION:
 781                 return cfg80211_mgd_wext_siwfreq(dev, info, wextfreq, extra);
 782         case NL80211_IFTYPE_ADHOC:
 783                 return cfg80211_ibss_wext_siwfreq(dev, info, wextfreq, extra);
 784         default:
 785                 freq = cfg80211_wext_freq(wdev->wiphy, wextfreq);
 786                 if (freq < 0)
 787                         return freq;
 788                 if (freq == 0)
 789                         return -EINVAL;
 790                 mutex_lock(&rdev->devlist_mtx);
 791                 err = rdev_set_freq(rdev, NULL, freq, NL80211_CHAN_NO_HT);
 792                 mutex_unlock(&rdev->devlist_mtx);
 793                 return err;
 794         }
 795 }
 796 EXPORT_SYMBOL_GPL(cfg80211_wext_siwfreq);
 797
 798 int cfg80211_wext_giwfreq(struct net_device *dev,
 799                           struct iw_request_info *info,
 800                           struct iw_freq *freq, char *extra)
 801 {
 802         struct wireless_dev *wdev = dev->ieee80211_ptr;
 803         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
 804
 805         switch (wdev->iftype) {
 806         case NL80211_IFTYPE_STATION:
 807                 return cfg80211_mgd_wext_giwfreq(dev, info, freq, extra);
 808         case NL80211_IFTYPE_ADHOC:
 809                 return cfg80211_ibss_wext_giwfreq(dev, info, freq, extra);
 810         default:
 811                 if (!rdev->channel)
 812                         return -EINVAL;
 813                 freq->m = rdev->channel->center_freq;
 814                 freq->e = 6;
 815                 return 0;
 816         }
 817 }
 818 EXPORT_SYMBOL_GPL(cfg80211_wext_giwfreq);
 819
 820 int cfg80211_wext_siwtxpower(struct net_device *dev,
 821                              struct iw_request_info *info,
 822                              union iwreq_data *data, char *extra)
 823 {
 824         struct wireless_dev *wdev = dev->ieee80211_ptr;
 825         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
 826         enum tx_power_setting type;
 827         int dbm = 0;
 828
 829         if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM)
 830                 return -EINVAL;
 831         if (data->txpower.flags & IW_TXPOW_RANGE)
 832                 return -EINVAL;
 833
 834         if (!rdev->ops->set_tx_power)
 835                 return -EOPNOTSUPP;
 836
 837         /* only change when not disabling */
 838         if (!data->txpower.disabled) {
 839                 rfkill_set_sw_state(rdev->rfkill, false);
 840
 841                 if (data->txpower.fixed) {
 842                         /*
 843                          * wext doesn't support negative values, see
 844                          * below where it's for automatic
 845                          */
 846                         if (data->txpower.value < 0)
 847                                 return -EINVAL;
 848                         dbm = data->txpower.value;
 849                         type = TX_POWER_FIXED;
 850                         /* TODO: do regulatory check! */
 851                 } else {
 852                         /*
 853                          * Automatic power level setting, max being the value
 854                          * passed in from userland.
 855                          */
 856                         if (data->txpower.value < 0) {
 857                                 type = TX_POWER_AUTOMATIC;
 858                         } else {
 859                                 dbm = data->txpower.value;
 860                                 type = TX_POWER_LIMITED;
 861                         }
 862                 }
 863         } else {
 864                 rfkill_set_sw_state(rdev->rfkill, true);
 865                 schedule_work(&rdev->rfkill_sync);
 866                 return 0;
 867         }
 868
 869         return rdev->ops->set_tx_power(wdev->wiphy, type, dbm);
 870 }
 871 EXPORT_SYMBOL_GPL(cfg80211_wext_siwtxpower);
 872
 873 int cfg80211_wext_giwtxpower(struct net_device *dev,
 874                              struct iw_request_info *info,
 875                              union iwreq_data *data, char *extra)
 876 {
 877         struct wireless_dev *wdev = dev->ieee80211_ptr;
 878         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
 879         int err, val;
 880
 881         if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM)
 882                 return -EINVAL;
 883         if (data->txpower.flags & IW_TXPOW_RANGE)
 884                 return -EINVAL;
 885
 886         if (!rdev->ops->get_tx_power)
 887                 return -EOPNOTSUPP;
 888
 889         err = rdev->ops->get_tx_power(wdev->wiphy, &val);
 890         if (err)
 891                 return err;
 892
 893         /* well... oh well */
 894         data->txpower.fixed = 1;
 895         data->txpower.disabled = rfkill_blocked(rdev->rfkill);
 896         data->txpower.value = val;
 897         data->txpower.flags = IW_TXPOW_DBM;
 898
 899         return 0;
 900 }
 901 EXPORT_SYMBOL_GPL(cfg80211_wext_giwtxpower);
 902
 903 static int cfg80211_set_auth_alg(struct wireless_dev *wdev,
 904                                  s32 auth_alg)
 905 {
 906         int nr_alg = 0;
 907
 908         if (!auth_alg)
 909                 return -EINVAL;
 910
 911         if (auth_alg & ~(IW_AUTH_ALG_OPEN_SYSTEM |
 912                          IW_AUTH_ALG_SHARED_KEY |
 913                          IW_AUTH_ALG_LEAP))
 914                 return -EINVAL;
 915
 916         if (auth_alg & IW_AUTH_ALG_OPEN_SYSTEM) {
 917                 nr_alg++;
 918                 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
 919         }
 920
 921         if (auth_alg & IW_AUTH_ALG_SHARED_KEY) {
 922                 nr_alg++;
 923                 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_SHARED_KEY;
 924         }
 925
 926         if (auth_alg & IW_AUTH_ALG_LEAP) {
 927                 nr_alg++;
 928                 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_NETWORK_EAP;
 929         }
 930
 931         if (nr_alg > 1)
 932                 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
 933
 934         return 0;
 935 }
 936
 937 static int cfg80211_set_wpa_version(struct wireless_dev *wdev, u32 wpa_versions)
 938 {
 939         if (wpa_versions & ~(IW_AUTH_WPA_VERSION_WPA |
 940                              IW_AUTH_WPA_VERSION_WPA2|
 941                              IW_AUTH_WPA_VERSION_DISABLED))
 942                 return -EINVAL;
 943
 944         if ((wpa_versions & IW_AUTH_WPA_VERSION_DISABLED) &&
 945             (wpa_versions & (IW_AUTH_WPA_VERSION_WPA|
 946                              IW_AUTH_WPA_VERSION_WPA2)))
 947                 return -EINVAL;
 948
 949         if (wpa_versions & IW_AUTH_WPA_VERSION_DISABLED)
 950                 wdev->wext.connect.crypto.wpa_versions &=
 951                         ~(NL80211_WPA_VERSION_1|NL80211_WPA_VERSION_2);
 952
 953         if (wpa_versions & IW_AUTH_WPA_VERSION_WPA)
 954                 wdev->wext.connect.crypto.wpa_versions |=
 955                         NL80211_WPA_VERSION_1;
 956
 957         if (wpa_versions & IW_AUTH_WPA_VERSION_WPA2)
 958                 wdev->wext.connect.crypto.wpa_versions |=
 959                         NL80211_WPA_VERSION_2;
 960
 961         return 0;
 962 }
 963
 964 static int cfg80211_set_cipher_group(struct wireless_dev *wdev, u32 cipher)
 965 {
 966         if (cipher & IW_AUTH_CIPHER_WEP40)
 967                 wdev->wext.connect.crypto.cipher_group =
 968                         WLAN_CIPHER_SUITE_WEP40;
 969         else if (cipher & IW_AUTH_CIPHER_WEP104)
 970                 wdev->wext.connect.crypto.cipher_group =
 971                         WLAN_CIPHER_SUITE_WEP104;
 972         else if (cipher & IW_AUTH_CIPHER_TKIP)
 973                 wdev->wext.connect.crypto.cipher_group =
 974                         WLAN_CIPHER_SUITE_TKIP;
 975         else if (cipher & IW_AUTH_CIPHER_CCMP)
 976                 wdev->wext.connect.crypto.cipher_group =
 977                         WLAN_CIPHER_SUITE_CCMP;
 978         else if (cipher & IW_AUTH_CIPHER_AES_CMAC)
 979                 wdev->wext.connect.crypto.cipher_group =
 980                         WLAN_CIPHER_SUITE_AES_CMAC;
 981         else if (cipher & IW_AUTH_CIPHER_NONE)
 982                 wdev->wext.connect.crypto.cipher_group = 0;
 983         else
 984                 return -EINVAL;
 985
 986         return 0;
 987 }
 988
 989 static int cfg80211_set_cipher_pairwise(struct wireless_dev *wdev, u32 cipher)
 990 {
 991         int nr_ciphers = 0;
 992         u32 *ciphers_pairwise = wdev->wext.connect.crypto.ciphers_pairwise;
 993
 994         if (cipher & IW_AUTH_CIPHER_WEP40) {
 995                 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_WEP40;
 996                 nr_ciphers++;
 997         }
 998
 999         if (cipher & IW_AUTH_CIPHER_WEP104) {
1000                 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_WEP104;
1001                 nr_ciphers++;
1002         }
1003
1004         if (cipher & IW_AUTH_CIPHER_TKIP) {
1005                 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_TKIP;
1006                 nr_ciphers++;
1007         }
1008
1009         if (cipher & IW_AUTH_CIPHER_CCMP) {
1010                 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_CCMP;
1011                 nr_ciphers++;
1012         }
1013
1014         if (cipher & IW_AUTH_CIPHER_AES_CMAC) {
1015                 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_AES_CMAC;
1016                 nr_ciphers++;
1017         }
1018
1019         BUILD_BUG_ON(NL80211_MAX_NR_CIPHER_SUITES < 5);
1020
1021         wdev->wext.connect.crypto.n_ciphers_pairwise = nr_ciphers;
1022
1023         return 0;
1024 }
1025
1026
1027 static int cfg80211_set_key_mgt(struct wireless_dev *wdev, u32 key_mgt)
1028 {
1029         int nr_akm_suites = 0;
1030
1031         if (key_mgt & ~(IW_AUTH_KEY_MGMT_802_1X |
1032                         IW_AUTH_KEY_MGMT_PSK))
1033                 return -EINVAL;
1034
1035         if (key_mgt & IW_AUTH_KEY_MGMT_802_1X) {
1036                 wdev->wext.connect.crypto.akm_suites[nr_akm_suites] =
1037                         WLAN_AKM_SUITE_8021X;
1038                 nr_akm_suites++;
1039         }
1040
1041         if (key_mgt & IW_AUTH_KEY_MGMT_PSK) {
1042                 wdev->wext.connect.crypto.akm_suites[nr_akm_suites] =
1043                         WLAN_AKM_SUITE_PSK;
1044                 nr_akm_suites++;
1045         }
1046
1047         wdev->wext.connect.crypto.n_akm_suites = nr_akm_suites;
1048
1049         return 0;
1050 }
1051
1052 int cfg80211_wext_siwauth(struct net_device *dev,
1053                           struct iw_request_info *info,
1054                           struct iw_param *data, char *extra)
1055 {
1056         struct wireless_dev *wdev = dev->ieee80211_ptr;
1057
1058         if (wdev->iftype != NL80211_IFTYPE_STATION)
1059                 return -EOPNOTSUPP;
1060
1061         switch (data->flags & IW_AUTH_INDEX) {
1062         case IW_AUTH_PRIVACY_INVOKED:
1063                 wdev->wext.connect.privacy = data->value;
1064                 return 0;
1065         case IW_AUTH_WPA_VERSION:
1066                 return cfg80211_set_wpa_version(wdev, data->value);
1067         case IW_AUTH_CIPHER_GROUP:
1068                 return cfg80211_set_cipher_group(wdev, data->value);
1069         case IW_AUTH_KEY_MGMT:
1070                 return cfg80211_set_key_mgt(wdev, data->value);
1071         case IW_AUTH_CIPHER_PAIRWISE:
1072                 return cfg80211_set_cipher_pairwise(wdev, data->value);
1073         case IW_AUTH_80211_AUTH_ALG:
1074                 return cfg80211_set_auth_alg(wdev, data->value);
1075         case IW_AUTH_WPA_ENABLED:
1076         case IW_AUTH_RX_UNENCRYPTED_EAPOL:
1077         case IW_AUTH_DROP_UNENCRYPTED:
1078         case IW_AUTH_MFP:
1079                 return 0;
1080         default:
1081                 return -EOPNOTSUPP;
1082         }
1083 }
1084 EXPORT_SYMBOL_GPL(cfg80211_wext_siwauth);
1085
1086 int cfg80211_wext_giwauth(struct net_device *dev,
1087                           struct iw_request_info *info,
1088                           struct iw_param *data, char *extra)
1089 {
1090         /* XXX: what do we need? */
1091
1092         return -EOPNOTSUPP;
1093 }
1094 EXPORT_SYMBOL_GPL(cfg80211_wext_giwauth);
1095
1096 int cfg80211_wext_siwpower(struct net_device *dev,
1097                            struct iw_request_info *info,
1098                            struct iw_param *wrq, char *extra)
1099 {
1100         struct wireless_dev *wdev = dev->ieee80211_ptr;
1101         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1102         bool ps = wdev->ps;
1103         int timeout = wdev->ps_timeout;
1104         int err;
1105
1106         if (wdev->iftype != NL80211_IFTYPE_STATION)
1107                 return -EINVAL;
1108
1109         if (!rdev->ops->set_power_mgmt)
1110                 return -EOPNOTSUPP;
1111
1112         if (wrq->disabled) {
1113                 ps = false;
1114         } else {
1115                 switch (wrq->flags & IW_POWER_MODE) {
1116                 case IW_POWER_ON:       /* If not specified */
1117                 case IW_POWER_MODE:     /* If set all mask */
1118                 case IW_POWER_ALL_R:    /* If explicitely state all */
1119                         ps = true;
1120                         break;
1121                 default:                /* Otherwise we ignore */
1122                         return -EINVAL;
1123                 }
1124
1125                 if (wrq->flags & ~(IW_POWER_MODE | IW_POWER_TIMEOUT))
1126                         return -EINVAL;
1127
1128                 if (wrq->flags & IW_POWER_TIMEOUT)
1129                         timeout = wrq->value / 1000;
1130         }
1131
1132         err = rdev->ops->set_power_mgmt(wdev->wiphy, dev, ps, timeout);
1133         if (err)
1134                 return err;
1135
1136         wdev->ps = ps;
1137         wdev->ps_timeout = timeout;
1138
1139         return 0;
1140
1141 }
1142 EXPORT_SYMBOL_GPL(cfg80211_wext_siwpower);
1143
1144 int cfg80211_wext_giwpower(struct net_device *dev,
1145                            struct iw_request_info *info,
1146                            struct iw_param *wrq, char *extra)
1147 {
1148         struct wireless_dev *wdev = dev->ieee80211_ptr;
1149
1150         wrq->disabled = !wdev->ps;
1151
1152         return 0;
1153 }
1154 EXPORT_SYMBOL_GPL(cfg80211_wext_giwpower);
1155
1156 static int cfg80211_wds_wext_siwap(struct net_device *dev,
1157                                    struct iw_request_info *info,
1158                                    struct sockaddr *addr, char *extra)
1159 {
1160         struct wireless_dev *wdev = dev->ieee80211_ptr;
1161         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1162         int err;
1163
1164         if (WARN_ON(wdev->iftype != NL80211_IFTYPE_WDS))
1165                 return -EINVAL;
1166
1167         if (addr->sa_family != ARPHRD_ETHER)
1168                 return -EINVAL;
1169
1170         if (netif_running(dev))
1171                 return -EBUSY;
1172
1173         if (!rdev->ops->set_wds_peer)
1174                 return -EOPNOTSUPP;
1175
1176         err = rdev->ops->set_wds_peer(wdev->wiphy, dev, (u8 *) &addr->sa_data);
1177         if (err)
1178                 return err;
1179
1180         memcpy(&wdev->wext.bssid, (u8 *) &addr->sa_data, ETH_ALEN);
1181
1182         return 0;
1183 }
1184
1185 static int cfg80211_wds_wext_giwap(struct net_device *dev,
1186                                    struct iw_request_info *info,
1187                                    struct sockaddr *addr, char *extra)
1188 {
1189         struct wireless_dev *wdev = dev->ieee80211_ptr;
1190
1191         if (WARN_ON(wdev->iftype != NL80211_IFTYPE_WDS))
1192                 return -EINVAL;
1193
1194         addr->sa_family = ARPHRD_ETHER;
1195         memcpy(&addr->sa_data, wdev->wext.bssid, ETH_ALEN);
1196
1197         return 0;
1198 }
1199
1200 int cfg80211_wext_siwrate(struct net_device *dev,
1201                           struct iw_request_info *info,
1202                           struct iw_param *rate, char *extra)
1203 {
1204         struct wireless_dev *wdev = dev->ieee80211_ptr;
1205         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1206         struct cfg80211_bitrate_mask mask;
1207         u32 fixed, maxrate;
1208         struct ieee80211_supported_band *sband;
1209         int band, ridx;
1210         bool match = false;
1211
1212         if (!rdev->ops->set_bitrate_mask)
1213                 return -EOPNOTSUPP;
1214
1215         memset(&mask, 0, sizeof(mask));
1216         fixed = 0;
1217         maxrate = (u32)-1;
1218
1219         if (rate->value < 0) {
1220                 /* nothing */
1221         } else if (rate->fixed) {
1222                 fixed = rate->value / 100000;
1223         } else {
1224                 maxrate = rate->value / 100000;
1225         }
1226
1227         for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
1228                 sband = wdev->wiphy->bands[band];
1229                 if (sband == NULL)
1230                         continue;
1231                 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
1232                         struct ieee80211_rate *srate = &sband->bitrates[ridx];
1233                         if (fixed == srate->bitrate) {
1234                                 mask.control[band].legacy = 1 << ridx;
1235                                 match = true;
1236                                 break;
1237                         }
1238                         if (srate->bitrate <= maxrate) {
1239                                 mask.control[band].legacy |= 1 << ridx;
1240                                 match = true;
1241                         }
1242                 }
1243         }
1244
1245         if (!match)
1246                 return -EINVAL;
1247
1248         return rdev->ops->set_bitrate_mask(wdev->wiphy, dev, NULL, &mask);
1249 }
1250 EXPORT_SYMBOL_GPL(cfg80211_wext_siwrate);
1251
1252 int cfg80211_wext_giwrate(struct net_device *dev,
1253                           struct iw_request_info *info,
1254                           struct iw_param *rate, char *extra)
1255 {
1256         struct wireless_dev *wdev = dev->ieee80211_ptr;
1257         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1258         /* we are under RTNL - globally locked - so can use a static struct */
1259         static struct station_info sinfo;
1260         u8 addr[ETH_ALEN];
1261         int err;
1262
1263         if (wdev->iftype != NL80211_IFTYPE_STATION)
1264                 return -EOPNOTSUPP;
1265
1266         if (!rdev->ops->get_station)
1267                 return -EOPNOTSUPP;
1268
1269         err = 0;
1270         wdev_lock(wdev);
1271         if (wdev->current_bss)
1272                 memcpy(addr, wdev->current_bss->pub.bssid, ETH_ALEN);
1273         else
1274                 err = -EOPNOTSUPP;
1275         wdev_unlock(wdev);
1276         if (err)
1277                 return err;
1278
1279         err = rdev->ops->get_station(&rdev->wiphy, dev, addr, &sinfo);
1280         if (err)
1281                 return err;
1282
1283         if (!(sinfo.filled & STATION_INFO_TX_BITRATE))
1284                 return -EOPNOTSUPP;
1285
1286         rate->value = 100000 * cfg80211_calculate_bitrate(&sinfo.txrate);
1287
1288         return 0;
1289 }
1290 EXPORT_SYMBOL_GPL(cfg80211_wext_giwrate);
1291
1292 /* Get wireless statistics.  Called by /proc/net/wireless and by SIOCGIWSTATS */
1293 struct iw_statistics *cfg80211_wireless_stats(struct net_device *dev)
1294 {
1295         struct wireless_dev *wdev = dev->ieee80211_ptr;
1296         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1297         /* we are under RTNL - globally locked - so can use static structs */
1298         static struct iw_statistics wstats;
1299         static struct station_info sinfo;
1300         u8 bssid[ETH_ALEN];
1301
1302         if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION)
1303                 return NULL;
1304
1305         if (!rdev->ops->get_station)
1306                 return NULL;
1307
1308         /* Grab BSSID of current BSS, if any */
1309         wdev_lock(wdev);
1310         if (!wdev->current_bss) {
1311                 wdev_unlock(wdev);
1312                 return NULL;
1313         }
1314         memcpy(bssid, wdev->current_bss->pub.bssid, ETH_ALEN);
1315         wdev_unlock(wdev);
1316
1317         if (rdev->ops->get_station(&rdev->wiphy, dev, bssid, &sinfo))
1318                 return NULL;
1319
1320         memset(&wstats, 0, sizeof(wstats));
1321
1322         switch (rdev->wiphy.signal_type) {
1323         case CFG80211_SIGNAL_TYPE_MBM:
1324                 if (sinfo.filled & STATION_INFO_SIGNAL) {
1325                         int sig = sinfo.signal;
1326                         wstats.qual.updated |= IW_QUAL_LEVEL_UPDATED;
1327                         wstats.qual.updated |= IW_QUAL_QUAL_UPDATED;
1328                         wstats.qual.updated |= IW_QUAL_DBM;
1329                         wstats.qual.level = sig;
1330                         if (sig < -110)
1331                                 sig = -110;
1332                         else if (sig > -40)
1333                                 sig = -40;
1334                         wstats.qual.qual = sig + 110;
1335                         break;
1336                 }
1337         case CFG80211_SIGNAL_TYPE_UNSPEC:
1338                 if (sinfo.filled & STATION_INFO_SIGNAL) {
1339                         wstats.qual.updated |= IW_QUAL_LEVEL_UPDATED;
1340                         wstats.qual.updated |= IW_QUAL_QUAL_UPDATED;
1341                         wstats.qual.level = sinfo.signal;
1342                         wstats.qual.qual = sinfo.signal;
1343                         break;
1344                 }
1345         default:
1346                 wstats.qual.updated |= IW_QUAL_LEVEL_INVALID;
1347                 wstats.qual.updated |= IW_QUAL_QUAL_INVALID;
1348         }
1349
1350         wstats.qual.updated |= IW_QUAL_NOISE_INVALID;
1351
1352         return &wstats;
1353 }
1354 EXPORT_SYMBOL_GPL(cfg80211_wireless_stats);
1355
1356 int cfg80211_wext_siwap(struct net_device *dev,
1357                         struct iw_request_info *info,
1358                         struct sockaddr *ap_addr, char *extra)
1359 {
1360         struct wireless_dev *wdev = dev->ieee80211_ptr;
1361
1362         switch (wdev->iftype) {
1363         case NL80211_IFTYPE_ADHOC:
1364                 return cfg80211_ibss_wext_siwap(dev, info, ap_addr, extra);
1365         case NL80211_IFTYPE_STATION:
1366                 return cfg80211_mgd_wext_siwap(dev, info, ap_addr, extra);
1367         case NL80211_IFTYPE_WDS:
1368                 return cfg80211_wds_wext_siwap(dev, info, ap_addr, extra);
1369         default:
1370                 return -EOPNOTSUPP;
1371         }
1372 }
1373 EXPORT_SYMBOL_GPL(cfg80211_wext_siwap);
1374
1375 int cfg80211_wext_giwap(struct net_device *dev,
1376                         struct iw_request_info *info,
1377                         struct sockaddr *ap_addr, char *extra)
1378 {
1379         struct wireless_dev *wdev = dev->ieee80211_ptr;
1380
1381         switch (wdev->iftype) {
1382         case NL80211_IFTYPE_ADHOC:
1383                 return cfg80211_ibss_wext_giwap(dev, info, ap_addr, extra);
1384         case NL80211_IFTYPE_STATION:
1385                 return cfg80211_mgd_wext_giwap(dev, info, ap_addr, extra);
1386         case NL80211_IFTYPE_WDS:
1387                 return cfg80211_wds_wext_giwap(dev, info, ap_addr, extra);
1388         default:
1389                 return -EOPNOTSUPP;
1390         }
1391 }
1392 EXPORT_SYMBOL_GPL(cfg80211_wext_giwap);
1393
1394 int cfg80211_wext_siwessid(struct net_device *dev,
1395                            struct iw_request_info *info,
1396                            struct iw_point *data, char *ssid)
1397 {
1398         struct wireless_dev *wdev = dev->ieee80211_ptr;
1399
1400         switch (wdev->iftype) {
1401         case NL80211_IFTYPE_ADHOC:
1402                 return cfg80211_ibss_wext_siwessid(dev, info, data, ssid);
1403         case NL80211_IFTYPE_STATION:
1404                 return cfg80211_mgd_wext_siwessid(dev, info, data, ssid);
1405         default:
1406                 return -EOPNOTSUPP;
1407         }
1408 }
1409 EXPORT_SYMBOL_GPL(cfg80211_wext_siwessid);
1410
1411 int cfg80211_wext_giwessid(struct net_device *dev,
1412                            struct iw_request_info *info,
1413                            struct iw_point *data, char *ssid)
1414 {
1415         struct wireless_dev *wdev = dev->ieee80211_ptr;
1416
1417         switch (wdev->iftype) {
1418         case NL80211_IFTYPE_ADHOC:
1419                 return cfg80211_ibss_wext_giwessid(dev, info, data, ssid);
1420         case NL80211_IFTYPE_STATION:
1421                 return cfg80211_mgd_wext_giwessid(dev, info, data, ssid);
1422         default:
1423                 return -EOPNOTSUPP;
1424         }
1425 }
1426 EXPORT_SYMBOL_GPL(cfg80211_wext_giwessid);
1427
1428 int cfg80211_wext_siwpmksa(struct net_device *dev,
1429                            struct iw_request_info *info,
1430                            struct iw_point *data, char *extra)
1431 {
1432         struct wireless_dev *wdev = dev->ieee80211_ptr;
1433         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1434         struct cfg80211_pmksa cfg_pmksa;
1435         struct iw_pmksa *pmksa = (struct iw_pmksa *)extra;
1436
1437         memset(&cfg_pmksa, 0, sizeof(struct cfg80211_pmksa));
1438
1439         if (wdev->iftype != NL80211_IFTYPE_STATION)
1440                 return -EINVAL;
1441
1442         cfg_pmksa.bssid = pmksa->bssid.sa_data;
1443         cfg_pmksa.pmkid = pmksa->pmkid;
1444
1445         switch (pmksa->cmd) {
1446         case IW_PMKSA_ADD:
1447                 if (!rdev->ops->set_pmksa)
1448                         return -EOPNOTSUPP;
1449
1450                 return rdev->ops->set_pmksa(&rdev->wiphy, dev, &cfg_pmksa);
1451
1452         case IW_PMKSA_REMOVE:
1453                 if (!rdev->ops->del_pmksa)
1454                         return -EOPNOTSUPP;
1455
1456                 return rdev->ops->del_pmksa(&rdev->wiphy, dev, &cfg_pmksa);
1457
1458         case IW_PMKSA_FLUSH:
1459                 if (!rdev->ops->flush_pmksa)
1460                         return -EOPNOTSUPP;
1461
1462                 return rdev->ops->flush_pmksa(&rdev->wiphy, dev);
1463
1464         default:
1465                 return -EOPNOTSUPP;
1466         }
1467 }
1468
1469 static const iw_handler cfg80211_handlers[] = {
1470         [IW_IOCTL_IDX(SIOCGIWNAME)]     = (iw_handler) cfg80211_wext_giwname,
1471         [IW_IOCTL_IDX(SIOCSIWFREQ)]     = (iw_handler) cfg80211_wext_siwfreq,
1472         [IW_IOCTL_IDX(SIOCGIWFREQ)]     = (iw_handler) cfg80211_wext_giwfreq,
1473         [IW_IOCTL_IDX(SIOCSIWMODE)]     = (iw_handler) cfg80211_wext_siwmode,
1474         [IW_IOCTL_IDX(SIOCGIWMODE)]     = (iw_handler) cfg80211_wext_giwmode,
1475         [IW_IOCTL_IDX(SIOCGIWRANGE)]    = (iw_handler) cfg80211_wext_giwrange,
1476         [IW_IOCTL_IDX(SIOCSIWAP)]       = (iw_handler) cfg80211_wext_siwap,
1477         [IW_IOCTL_IDX(SIOCGIWAP)]       = (iw_handler) cfg80211_wext_giwap,
1478         [IW_IOCTL_IDX(SIOCSIWMLME)]     = (iw_handler) cfg80211_wext_siwmlme,
1479         [IW_IOCTL_IDX(SIOCSIWSCAN)]     = (iw_handler) cfg80211_wext_siwscan,
1480         [IW_IOCTL_IDX(SIOCGIWSCAN)]     = (iw_handler) cfg80211_wext_giwscan,
1481         [IW_IOCTL_IDX(SIOCSIWESSID)]    = (iw_handler) cfg80211_wext_siwessid,
1482         [IW_IOCTL_IDX(SIOCGIWESSID)]    = (iw_handler) cfg80211_wext_giwessid,
1483         [IW_IOCTL_IDX(SIOCSIWRATE)]     = (iw_handler) cfg80211_wext_siwrate,
1484         [IW_IOCTL_IDX(SIOCGIWRATE)]     = (iw_handler) cfg80211_wext_giwrate,
1485         [IW_IOCTL_IDX(SIOCSIWRTS)]      = (iw_handler) cfg80211_wext_siwrts,
1486         [IW_IOCTL_IDX(SIOCGIWRTS)]      = (iw_handler) cfg80211_wext_giwrts,
1487         [IW_IOCTL_IDX(SIOCSIWFRAG)]     = (iw_handler) cfg80211_wext_siwfrag,
1488         [IW_IOCTL_IDX(SIOCGIWFRAG)]     = (iw_handler) cfg80211_wext_giwfrag,
1489         [IW_IOCTL_IDX(SIOCSIWTXPOW)]    = (iw_handler) cfg80211_wext_siwtxpower,
1490         [IW_IOCTL_IDX(SIOCGIWTXPOW)]    = (iw_handler) cfg80211_wext_giwtxpower,
1491         [IW_IOCTL_IDX(SIOCSIWRETRY)]    = (iw_handler) cfg80211_wext_siwretry,
1492         [IW_IOCTL_IDX(SIOCGIWRETRY)]    = (iw_handler) cfg80211_wext_giwretry,
1493         [IW_IOCTL_IDX(SIOCSIWENCODE)]   = (iw_handler) cfg80211_wext_siwencode,
1494         [IW_IOCTL_IDX(SIOCGIWENCODE)]   = (iw_handler) cfg80211_wext_giwencode,
1495         [IW_IOCTL_IDX(SIOCSIWPOWER)]    = (iw_handler) cfg80211_wext_siwpower,
1496         [IW_IOCTL_IDX(SIOCGIWPOWER)]    = (iw_handler) cfg80211_wext_giwpower,
1497         [IW_IOCTL_IDX(SIOCSIWGENIE)]    = (iw_handler) cfg80211_wext_siwgenie,
1498         [IW_IOCTL_IDX(SIOCSIWAUTH)]     = (iw_handler) cfg80211_wext_siwauth,
1499         [IW_IOCTL_IDX(SIOCGIWAUTH)]     = (iw_handler) cfg80211_wext_giwauth,
1500         [IW_IOCTL_IDX(SIOCSIWENCODEEXT)]= (iw_handler) cfg80211_wext_siwencodeext,
1501         [IW_IOCTL_IDX(SIOCSIWPMKSA)]    = (iw_handler) cfg80211_wext_siwpmksa,
1502 };
1503
1504 const struct iw_handler_def cfg80211_wext_handler = {
1505         .num_standard           = ARRAY_SIZE(cfg80211_handlers),
1506         .standard               = cfg80211_handlers,
1507         .get_wireless_stats = cfg80211_wireless_stats,
1508 };