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 <linux/slab.h>
  16 #include <net/iw_handler.h>
  17 #include <net/cfg80211.h>
  18 #include "wext-compat.h"
  19 #include "core.h"
  20
  21 int cfg80211_wext_giwname(struct net_device *dev,
  22                           struct iw_request_info *info,
  23                           char *name, char *extra)
  24 {
  25         struct wireless_dev *wdev = dev->ieee80211_ptr;
  26         struct ieee80211_supported_band *sband;
  27         bool is_ht = false, is_a = false, is_b = false, is_g = false;
  28
  29         if (!wdev)
  30                 return -EOPNOTSUPP;
  31
  32         sband = wdev->wiphy->bands[IEEE80211_BAND_5GHZ];
  33         if (sband) {
  34                 is_a = true;
  35                 is_ht |= sband->ht_cap.ht_supported;
  36         }
  37
  38         sband = wdev->wiphy->bands[IEEE80211_BAND_2GHZ];
  39         if (sband) {
  40                 int i;
  41                 /* Check for mandatory rates */
  42                 for (i = 0; i < sband->n_bitrates; i++) {
  43                         if (sband->bitrates[i].bitrate == 10)
  44                                 is_b = true;
  45                         if (sband->bitrates[i].bitrate == 60)
  46                                 is_g = true;
  47                 }
  48                 is_ht |= sband->ht_cap.ht_supported;
  49         }
  50
  51         strcpy(name, "IEEE 802.11");
  52         if (is_a)
  53                 strcat(name, "a");
  54         if (is_b)
  55                 strcat(name, "b");
  56         if (is_g)
  57                 strcat(name, "g");
  58         if (is_ht)
  59                 strcat(name, "n");
  60
  61         return 0;
  62 }
  63 EXPORT_SYMBOL_GPL(cfg80211_wext_giwname);
  64
  65 int cfg80211_wext_siwmode(struct net_device *dev, struct iw_request_info *info,
  66                           u32 *mode, char *extra)
  67 {
  68         struct wireless_dev *wdev = dev->ieee80211_ptr;
  69         struct cfg80211_registered_device *rdev;
  70         struct vif_params vifparams;
  71         enum nl80211_iftype type;
  72         int ret;
  73
  74         rdev = wiphy_to_dev(wdev->wiphy);
  75
  76         switch (*mode) {
  77         case IW_MODE_INFRA:
  78                 type = NL80211_IFTYPE_STATION;
  79                 break;
  80         case IW_MODE_ADHOC:
  81                 type = NL80211_IFTYPE_ADHOC;
  82                 break;
  83         case IW_MODE_REPEAT:
  84                 type = NL80211_IFTYPE_WDS;
  85                 break;
  86         case IW_MODE_MONITOR:
  87                 type = NL80211_IFTYPE_MONITOR;
  88                 break;
  89         default:
  90                 return -EINVAL;
  91         }
  92
  93         if (type == wdev->iftype)
  94                 return 0;
  95
  96         memset(&vifparams, 0, sizeof(vifparams));
  97
  98         cfg80211_lock_rdev(rdev);
  99         ret = cfg80211_change_iface(rdev, dev, type, NULL, &vifparams);
 100         cfg80211_unlock_rdev(rdev);
 101
 102         return ret;
 103 }
 104 EXPORT_SYMBOL_GPL(cfg80211_wext_siwmode);
 105
 106 int cfg80211_wext_giwmode(struct net_device *dev, struct iw_request_info *info,
 107                           u32 *mode, char *extra)
 108 {
 109         struct wireless_dev *wdev = dev->ieee80211_ptr;
 110
 111         if (!wdev)
 112                 return -EOPNOTSUPP;
 113
 114         switch (wdev->iftype) {
 115         case NL80211_IFTYPE_AP:
 116                 *mode = IW_MODE_MASTER;
 117                 break;
 118         case NL80211_IFTYPE_STATION:
 119                 *mode = IW_MODE_INFRA;
 120                 break;
 121         case NL80211_IFTYPE_ADHOC:
 122                 *mode = IW_MODE_ADHOC;
 123                 break;
 124         case NL80211_IFTYPE_MONITOR:
 125                 *mode = IW_MODE_MONITOR;
 126                 break;
 127         case NL80211_IFTYPE_WDS:
 128                 *mode = IW_MODE_REPEAT;
 129                 break;
 130         case NL80211_IFTYPE_AP_VLAN:
 131                 *mode = IW_MODE_SECOND;         /* FIXME */
 132                 break;
 133         default:
 134                 *mode = IW_MODE_AUTO;
 135                 break;
 136         }
 137         return 0;
 138 }
 139 EXPORT_SYMBOL_GPL(cfg80211_wext_giwmode);
 140
 141
 142 int cfg80211_wext_giwrange(struct net_device *dev,
 143                            struct iw_request_info *info,
 144                            struct iw_point *data, char *extra)
 145 {
 146         struct wireless_dev *wdev = dev->ieee80211_ptr;
 147         struct iw_range *range = (struct iw_range *) extra;
 148         enum ieee80211_band band;
 149         int i, c = 0;
 150
 151         if (!wdev)
 152                 return -EOPNOTSUPP;
 153
 154         data->length = sizeof(struct iw_range);
 155         memset(range, 0, sizeof(struct iw_range));
 156
 157         range->we_version_compiled = WIRELESS_EXT;
 158         range->we_version_source = 21;
 159         range->retry_capa = IW_RETRY_LIMIT;
 160         range->retry_flags = IW_RETRY_LIMIT;
 161         range->min_retry = 0;
 162         range->max_retry = 255;
 163         range->min_rts = 0;
 164         range->max_rts = 2347;
 165         range->min_frag = 256;
 166         range->max_frag = 2346;
 167
 168         range->max_encoding_tokens = 4;
 169
 170         range->max_qual.updated = IW_QUAL_NOISE_INVALID;
 171
 172         switch (wdev->wiphy->signal_type) {
 173         case CFG80211_SIGNAL_TYPE_NONE:
 174                 break;
 175         case CFG80211_SIGNAL_TYPE_MBM:
 176                 range->max_qual.level = -110;
 177                 range->max_qual.qual = 70;
 178                 range->avg_qual.qual = 35;
 179                 range->max_qual.updated |= IW_QUAL_DBM;
 180                 range->max_qual.updated |= IW_QUAL_QUAL_UPDATED;
 181                 range->max_qual.updated |= IW_QUAL_LEVEL_UPDATED;
 182                 break;
 183         case CFG80211_SIGNAL_TYPE_UNSPEC:
 184                 range->max_qual.level = 100;
 185                 range->max_qual.qual = 100;
 186                 range->avg_qual.qual = 50;
 187                 range->max_qual.updated |= IW_QUAL_QUAL_UPDATED;
 188                 range->max_qual.updated |= IW_QUAL_LEVEL_UPDATED;
 189                 break;
 190         }
 191
 192         range->avg_qual.level = range->max_qual.level / 2;
 193         range->avg_qual.noise = range->max_qual.noise / 2;
 194         range->avg_qual.updated = range->max_qual.updated;
 195
 196         for (i = 0; i < wdev->wiphy->n_cipher_suites; i++) {
 197                 switch (wdev->wiphy->cipher_suites[i]) {
 198                 case WLAN_CIPHER_SUITE_TKIP:
 199                         range->enc_capa |= (IW_ENC_CAPA_CIPHER_TKIP |
 200                                             IW_ENC_CAPA_WPA);
 201                         break;
 202
 203                 case WLAN_CIPHER_SUITE_CCMP:
 204                         range->enc_capa |= (IW_ENC_CAPA_CIPHER_CCMP |
 205                                             IW_ENC_CAPA_WPA2);
 206                         break;
 207
 208                 case WLAN_CIPHER_SUITE_WEP40:
 209                         range->encoding_size[range->num_encoding_sizes++] =
 210                                 WLAN_KEY_LEN_WEP40;
 211                         break;
 212
 213                 case WLAN_CIPHER_SUITE_WEP104:
 214                         range->encoding_size[range->num_encoding_sizes++] =
 215                                 WLAN_KEY_LEN_WEP104;
 216                         break;
 217                 }
 218         }
 219
 220         for (band = 0; band < IEEE80211_NUM_BANDS; band ++) {
 221                 struct ieee80211_supported_band *sband;
 222
 223                 sband = wdev->wiphy->bands[band];
 224
 225                 if (!sband)
 226                         continue;
 227
 228                 for (i = 0; i < sband->n_channels && c < IW_MAX_FREQUENCIES; i++) {
 229                         struct ieee80211_channel *chan = &sband->channels[i];
 230
 231                         if (!(chan->flags & IEEE80211_CHAN_DISABLED)) {
 232                                 range->freq[c].i =
 233                                         ieee80211_frequency_to_channel(
 234                                                 chan->center_freq);
 235                                 range->freq[c].m = chan->center_freq;
 236                                 range->freq[c].e = 6;
 237                                 c++;
 238                         }
 239                 }
 240         }
 241         range->num_channels = c;
 242         range->num_frequency = c;
 243
 244         IW_EVENT_CAPA_SET_KERNEL(range->event_capa);
 245         IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWAP);
 246         IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWSCAN);
 247
 248         if (wdev->wiphy->max_scan_ssids > 0)
 249                 range->scan_capa |= IW_SCAN_CAPA_ESSID;
 250
 251         return 0;
 252 }
 253 EXPORT_SYMBOL_GPL(cfg80211_wext_giwrange);
 254
 255
 256 /**
 257  * cfg80211_wext_freq - get wext frequency for non-"auto"
 258  * @wiphy: the wiphy
 259  * @freq: the wext freq encoding
 260  *
 261  * Returns a frequency, or a negative error code, or 0 for auto.
 262  */
 263 int cfg80211_wext_freq(struct wiphy *wiphy, struct iw_freq *freq)
 264 {
 265         /*
 266          * Parse frequency - return 0 for auto and
 267          * -EINVAL for impossible things.
 268          */
 269         if (freq->e == 0) {
 270                 if (freq->m < 0)
 271                         return 0;
 272                 return ieee80211_channel_to_frequency(freq->m);
 273         } else {
 274                 int i, div = 1000000;
 275                 for (i = 0; i < freq->e; i++)
 276                         div /= 10;
 277                 if (div <= 0)
 278                         return -EINVAL;
 279                 return freq->m / div;
 280         }
 281 }
 282
 283 int cfg80211_wext_siwrts(struct net_device *dev,
 284                          struct iw_request_info *info,
 285                          struct iw_param *rts, char *extra)
 286 {
 287         struct wireless_dev *wdev = dev->ieee80211_ptr;
 288         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
 289         u32 orts = wdev->wiphy->rts_threshold;
 290         int err;
 291
 292         if (rts->disabled || !rts->fixed)
 293                 wdev->wiphy->rts_threshold = (u32) -1;
 294         else if (rts->value < 0)
 295                 return -EINVAL;
 296         else
 297                 wdev->wiphy->rts_threshold = rts->value;
 298
 299         err = rdev->ops->set_wiphy_params(wdev->wiphy,
 300                                           WIPHY_PARAM_RTS_THRESHOLD);
 301         if (err)
 302                 wdev->wiphy->rts_threshold = orts;
 303
 304         return err;
 305 }
 306 EXPORT_SYMBOL_GPL(cfg80211_wext_siwrts);
 307
 308 int cfg80211_wext_giwrts(struct net_device *dev,
 309                          struct iw_request_info *info,
 310                          struct iw_param *rts, char *extra)
 311 {
 312         struct wireless_dev *wdev = dev->ieee80211_ptr;
 313
 314         rts->value = wdev->wiphy->rts_threshold;
 315         rts->disabled = rts->value == (u32) -1;
 316         rts->fixed = 1;
 317
 318         return 0;
 319 }
 320 EXPORT_SYMBOL_GPL(cfg80211_wext_giwrts);
 321
 322 int cfg80211_wext_siwfrag(struct net_device *dev,
 323                           struct iw_request_info *info,
 324                           struct iw_param *frag, char *extra)
 325 {
 326         struct wireless_dev *wdev = dev->ieee80211_ptr;
 327         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
 328         u32 ofrag = wdev->wiphy->frag_threshold;
 329         int err;
 330
 331         if (frag->disabled || !frag->fixed)
 332                 wdev->wiphy->frag_threshold = (u32) -1;
 333         else if (frag->value < 256)
 334                 return -EINVAL;
 335         else {
 336                 /* Fragment length must be even, so strip LSB. */
 337                 wdev->wiphy->frag_threshold = frag->value & ~0x1;
 338         }
 339
 340         err = rdev->ops->set_wiphy_params(wdev->wiphy,
 341                                           WIPHY_PARAM_FRAG_THRESHOLD);
 342         if (err)
 343                 wdev->wiphy->frag_threshold = ofrag;
 344
 345         return err;
 346 }
 347 EXPORT_SYMBOL_GPL(cfg80211_wext_siwfrag);
 348
 349 int cfg80211_wext_giwfrag(struct net_device *dev,
 350                           struct iw_request_info *info,
 351                           struct iw_param *frag, char *extra)
 352 {
 353         struct wireless_dev *wdev = dev->ieee80211_ptr;
 354
 355         frag->value = wdev->wiphy->frag_threshold;
 356         frag->disabled = frag->value == (u32) -1;
 357         frag->fixed = 1;
 358
 359         return 0;
 360 }
 361 EXPORT_SYMBOL_GPL(cfg80211_wext_giwfrag);
 362
 363 int cfg80211_wext_siwretry(struct net_device *dev,
 364                            struct iw_request_info *info,
 365                            struct iw_param *retry, char *extra)
 366 {
 367         struct wireless_dev *wdev = dev->ieee80211_ptr;
 368         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
 369         u32 changed = 0;
 370         u8 olong = wdev->wiphy->retry_long;
 371         u8 oshort = wdev->wiphy->retry_short;
 372         int err;
 373
 374         if (retry->disabled ||
 375             (retry->flags & IW_RETRY_TYPE) != IW_RETRY_LIMIT)
 376                 return -EINVAL;
 377
 378         if (retry->flags & IW_RETRY_LONG) {
 379                 wdev->wiphy->retry_long = retry->value;
 380                 changed |= WIPHY_PARAM_RETRY_LONG;
 381         } else if (retry->flags & IW_RETRY_SHORT) {
 382                 wdev->wiphy->retry_short = retry->value;
 383                 changed |= WIPHY_PARAM_RETRY_SHORT;
 384         } else {
 385                 wdev->wiphy->retry_short = retry->value;
 386                 wdev->wiphy->retry_long = retry->value;
 387                 changed |= WIPHY_PARAM_RETRY_LONG;
 388                 changed |= WIPHY_PARAM_RETRY_SHORT;
 389         }
 390
 391         if (!changed)
 392                 return 0;
 393
 394         err = rdev->ops->set_wiphy_params(wdev->wiphy, changed);
 395         if (err) {
 396                 wdev->wiphy->retry_short = oshort;
 397                 wdev->wiphy->retry_long = olong;
 398         }
 399
 400         return err;
 401 }
 402 EXPORT_SYMBOL_GPL(cfg80211_wext_siwretry);
 403
 404 int cfg80211_wext_giwretry(struct net_device *dev,
 405                            struct iw_request_info *info,
 406                            struct iw_param *retry, char *extra)
 407 {
 408         struct wireless_dev *wdev = dev->ieee80211_ptr;
 409
 410         retry->disabled = 0;
 411
 412         if (retry->flags == 0 || (retry->flags & IW_RETRY_SHORT)) {
 413                 /*
 414                  * First return short value, iwconfig will ask long value
 415                  * later if needed
 416                  */
 417                 retry->flags |= IW_RETRY_LIMIT;
 418                 retry->value = wdev->wiphy->retry_short;
 419                 if (wdev->wiphy->retry_long != wdev->wiphy->retry_short)
 420                         retry->flags |= IW_RETRY_LONG;
 421
 422                 return 0;
 423         }
 424
 425         if (retry->flags & IW_RETRY_LONG) {
 426                 retry->flags = IW_RETRY_LIMIT | IW_RETRY_LONG;
 427                 retry->value = wdev->wiphy->retry_long;
 428         }
 429
 430         return 0;
 431 }
 432 EXPORT_SYMBOL_GPL(cfg80211_wext_giwretry);
 433
 434 static int __cfg80211_set_encryption(struct cfg80211_registered_device *rdev,
 435                                      struct net_device *dev, const u8 *addr,
 436                                      bool remove, bool tx_key, int idx,
 437                                      struct key_params *params)
 438 {
 439         struct wireless_dev *wdev = dev->ieee80211_ptr;
 440         int err, i;
 441         bool rejoin = false;
 442
 443         if (!wdev->wext.keys) {
 444                 wdev->wext.keys = kzalloc(sizeof(*wdev->wext.keys),
 445                                               GFP_KERNEL);
 446                 if (!wdev->wext.keys)
 447                         return -ENOMEM;
 448                 for (i = 0; i < 6; i++)
 449                         wdev->wext.keys->params[i].key =
 450                                 wdev->wext.keys->data[i];
 451         }
 452
 453         if (wdev->iftype != NL80211_IFTYPE_ADHOC &&
 454             wdev->iftype != NL80211_IFTYPE_STATION)
 455                 return -EOPNOTSUPP;
 456
 457         if (params->cipher == WLAN_CIPHER_SUITE_AES_CMAC) {
 458                 if (!wdev->current_bss)
 459                         return -ENOLINK;
 460
 461                 if (!rdev->ops->set_default_mgmt_key)
 462                         return -EOPNOTSUPP;
 463
 464                 if (idx < 4 || idx > 5)
 465                         return -EINVAL;
 466         } else if (idx < 0 || idx > 3)
 467                 return -EINVAL;
 468
 469         if (remove) {
 470                 err = 0;
 471                 if (wdev->current_bss) {
 472                         /*
 473                          * If removing the current TX key, we will need to
 474                          * join a new IBSS without the privacy bit clear.
 475                          */
 476                         if (idx == wdev->wext.default_key &&
 477                             wdev->iftype == NL80211_IFTYPE_ADHOC) {
 478                                 __cfg80211_leave_ibss(rdev, wdev->netdev, true);
 479                                 rejoin = true;
 480                         }
 481                         err = rdev->ops->del_key(&rdev->wiphy, dev, idx, addr);
 482                 }
 483                 wdev->wext.connect.privacy = false;
 484                 /*
 485                  * Applications using wireless extensions expect to be
 486                  * able to delete keys that don't exist, so allow that.
 487                  */
 488                 if (err == -ENOENT)
 489                         err = 0;
 490                 if (!err) {
 491                         if (!addr) {
 492                                 wdev->wext.keys->params[idx].key_len = 0;
 493                                 wdev->wext.keys->params[idx].cipher = 0;
 494                         }
 495                         if (idx == wdev->wext.default_key)
 496                                 wdev->wext.default_key = -1;
 497                         else if (idx == wdev->wext.default_mgmt_key)
 498                                 wdev->wext.default_mgmt_key = -1;
 499                 }
 500
 501                 if (!err && rejoin)
 502                         err = cfg80211_ibss_wext_join(rdev, wdev);
 503
 504                 return err;
 505         }
 506
 507         if (addr)
 508                 tx_key = false;
 509
 510         if (cfg80211_validate_key_settings(rdev, params, idx, addr))
 511                 return -EINVAL;
 512
 513         err = 0;
 514         if (wdev->current_bss)
 515                 err = rdev->ops->add_key(&rdev->wiphy, dev, idx, addr, params);
 516         if (err)
 517                 return err;
 518
 519         if (!addr) {
 520                 wdev->wext.keys->params[idx] = *params;
 521                 memcpy(wdev->wext.keys->data[idx],
 522                         params->key, params->key_len);
 523                 wdev->wext.keys->params[idx].key =
 524                         wdev->wext.keys->data[idx];
 525         }
 526
 527         if ((params->cipher == WLAN_CIPHER_SUITE_WEP40 ||
 528              params->cipher == WLAN_CIPHER_SUITE_WEP104) &&
 529             (tx_key || (!addr && wdev->wext.default_key == -1))) {
 530                 if (wdev->current_bss) {
 531                         /*
 532                          * If we are getting a new TX key from not having
 533                          * had one before we need to join a new IBSS with
 534                          * the privacy bit set.
 535                          */
 536                         if (wdev->iftype == NL80211_IFTYPE_ADHOC &&
 537                             wdev->wext.default_key == -1) {
 538                                 __cfg80211_leave_ibss(rdev, wdev->netdev, true);
 539                                 rejoin = true;
 540                         }
 541                         err = rdev->ops->set_default_key(&rdev->wiphy,
 542                                                          dev, idx);
 543                 }
 544                 if (!err) {
 545                         wdev->wext.default_key = idx;
 546                         if (rejoin)
 547                                 err = cfg80211_ibss_wext_join(rdev, wdev);
 548                 }
 549                 return err;
 550         }
 551
 552         if (params->cipher == WLAN_CIPHER_SUITE_AES_CMAC &&
 553             (tx_key || (!addr && wdev->wext.default_mgmt_key == -1))) {
 554                 if (wdev->current_bss)
 555                         err = rdev->ops->set_default_mgmt_key(&rdev->wiphy,
 556                                                               dev, idx);
 557                 if (!err)
 558                         wdev->wext.default_mgmt_key = idx;
 559                 return err;
 560         }
 561
 562         return 0;
 563 }
 564
 565 static int cfg80211_set_encryption(struct cfg80211_registered_device *rdev,
 566                                    struct net_device *dev, const u8 *addr,
 567                                    bool remove, bool tx_key, int idx,
 568                                    struct key_params *params)
 569 {
 570         int err;
 571
 572         /* devlist mutex needed for possible IBSS re-join */
 573         mutex_lock(&rdev->devlist_mtx);
 574         wdev_lock(dev->ieee80211_ptr);
 575         err = __cfg80211_set_encryption(rdev, dev, addr, remove,
 576                                         tx_key, idx, params);
 577         wdev_unlock(dev->ieee80211_ptr);
 578         mutex_unlock(&rdev->devlist_mtx);
 579
 580         return err;
 581 }
 582
 583 int cfg80211_wext_siwencode(struct net_device *dev,
 584                             struct iw_request_info *info,
 585                             struct iw_point *erq, char *keybuf)
 586 {
 587         struct wireless_dev *wdev = dev->ieee80211_ptr;
 588         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
 589         int idx, err;
 590         bool remove = false;
 591         struct key_params params;
 592
 593         if (wdev->iftype != NL80211_IFTYPE_STATION &&
 594             wdev->iftype != NL80211_IFTYPE_ADHOC)
 595                 return -EOPNOTSUPP;
 596
 597         /* no use -- only MFP (set_default_mgmt_key) is optional */
 598         if (!rdev->ops->del_key ||
 599             !rdev->ops->add_key ||
 600             !rdev->ops->set_default_key)
 601                 return -EOPNOTSUPP;
 602
 603         idx = erq->flags & IW_ENCODE_INDEX;
 604         if (idx == 0) {
 605                 idx = wdev->wext.default_key;
 606                 if (idx < 0)
 607                         idx = 0;
 608         } else if (idx < 1 || idx > 4)
 609                 return -EINVAL;
 610         else
 611                 idx--;
 612
 613         if (erq->flags & IW_ENCODE_DISABLED)
 614                 remove = true;
 615         else if (erq->length == 0) {
 616                 /* No key data - just set the default TX key index */
 617                 err = 0;
 618                 wdev_lock(wdev);
 619                 if (wdev->current_bss)
 620                         err = rdev->ops->set_default_key(&rdev->wiphy,
 621                                                          dev, idx);
 622                 if (!err)
 623                         wdev->wext.default_key = idx;
 624                 wdev_unlock(wdev);
 625                 return err;
 626         }
 627
 628         memset(&params, 0, sizeof(params));
 629         params.key = keybuf;
 630         params.key_len = erq->length;
 631         if (erq->length == 5)
 632                 params.cipher = WLAN_CIPHER_SUITE_WEP40;
 633         else if (erq->length == 13)
 634                 params.cipher = WLAN_CIPHER_SUITE_WEP104;
 635         else if (!remove)
 636                 return -EINVAL;
 637
 638         return cfg80211_set_encryption(rdev, dev, NULL, remove,
 639                                        wdev->wext.default_key == -1,
 640                                        idx, &params);
 641 }
 642 EXPORT_SYMBOL_GPL(cfg80211_wext_siwencode);
 643
 644 int cfg80211_wext_siwencodeext(struct net_device *dev,
 645                                struct iw_request_info *info,
 646                                struct iw_point *erq, char *extra)
 647 {
 648         struct wireless_dev *wdev = dev->ieee80211_ptr;
 649         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
 650         struct iw_encode_ext *ext = (struct iw_encode_ext *) extra;
 651         const u8 *addr;
 652         int idx;
 653         bool remove = false;
 654         struct key_params params;
 655         u32 cipher;
 656
 657         if (wdev->iftype != NL80211_IFTYPE_STATION &&
 658             wdev->iftype != NL80211_IFTYPE_ADHOC)
 659                 return -EOPNOTSUPP;
 660
 661         /* no use -- only MFP (set_default_mgmt_key) is optional */
 662         if (!rdev->ops->del_key ||
 663             !rdev->ops->add_key ||
 664             !rdev->ops->set_default_key)
 665                 return -EOPNOTSUPP;
 666
 667         switch (ext->alg) {
 668         case IW_ENCODE_ALG_NONE:
 669                 remove = true;
 670                 cipher = 0;
 671                 break;
 672         case IW_ENCODE_ALG_WEP:
 673                 if (ext->key_len == 5)
 674                         cipher = WLAN_CIPHER_SUITE_WEP40;
 675                 else if (ext->key_len == 13)
 676                         cipher = WLAN_CIPHER_SUITE_WEP104;
 677                 else
 678                         return -EINVAL;
 679                 break;
 680         case IW_ENCODE_ALG_TKIP:
 681                 cipher = WLAN_CIPHER_SUITE_TKIP;
 682                 break;
 683         case IW_ENCODE_ALG_CCMP:
 684                 cipher = WLAN_CIPHER_SUITE_CCMP;
 685                 break;
 686         case IW_ENCODE_ALG_AES_CMAC:
 687                 cipher = WLAN_CIPHER_SUITE_AES_CMAC;
 688                 break;
 689         default:
 690                 return -EOPNOTSUPP;
 691         }
 692
 693         if (erq->flags & IW_ENCODE_DISABLED)
 694                 remove = true;
 695
 696         idx = erq->flags & IW_ENCODE_INDEX;
 697         if (cipher == WLAN_CIPHER_SUITE_AES_CMAC) {
 698                 if (idx < 4 || idx > 5) {
 699                         idx = wdev->wext.default_mgmt_key;
 700                         if (idx < 0)
 701                                 return -EINVAL;
 702                 } else
 703                         idx--;
 704         } else {
 705                 if (idx < 1 || idx > 4) {
 706                         idx = wdev->wext.default_key;
 707                         if (idx < 0)
 708                                 return -EINVAL;
 709                 } else
 710                         idx--;
 711         }
 712
 713         addr = ext->addr.sa_data;
 714         if (is_broadcast_ether_addr(addr))
 715                 addr = NULL;
 716
 717         memset(&params, 0, sizeof(params));
 718         params.key = ext->key;
 719         params.key_len = ext->key_len;
 720         params.cipher = cipher;
 721
 722         if (ext->ext_flags & IW_ENCODE_EXT_RX_SEQ_VALID) {
 723                 params.seq = ext->rx_seq;
 724                 params.seq_len = 6;
 725         }
 726
 727         return cfg80211_set_encryption(
 728                         rdev, dev, addr, remove,
 729                         ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY,
 730                         idx, &params);
 731 }
 732 EXPORT_SYMBOL_GPL(cfg80211_wext_siwencodeext);
 733
 734 int cfg80211_wext_giwencode(struct net_device *dev,
 735                             struct iw_request_info *info,
 736                             struct iw_point *erq, char *keybuf)
 737 {
 738         struct wireless_dev *wdev = dev->ieee80211_ptr;
 739         int idx;
 740
 741         if (wdev->iftype != NL80211_IFTYPE_STATION &&
 742             wdev->iftype != NL80211_IFTYPE_ADHOC)
 743                 return -EOPNOTSUPP;
 744
 745         idx = erq->flags & IW_ENCODE_INDEX;
 746         if (idx == 0) {
 747                 idx = wdev->wext.default_key;
 748                 if (idx < 0)
 749                         idx = 0;
 750         } else if (idx < 1 || idx > 4)
 751                 return -EINVAL;
 752         else
 753                 idx--;
 754
 755         erq->flags = idx + 1;
 756
 757         if (!wdev->wext.keys || !wdev->wext.keys->params[idx].cipher) {
 758                 erq->flags |= IW_ENCODE_DISABLED;
 759                 erq->length = 0;
 760                 return 0;
 761         }
 762
 763         erq->length = min_t(size_t, erq->length,
 764                             wdev->wext.keys->params[idx].key_len);
 765         memcpy(keybuf, wdev->wext.keys->params[idx].key, erq->length);
 766         erq->flags |= IW_ENCODE_ENABLED;
 767
 768         return 0;
 769 }
 770 EXPORT_SYMBOL_GPL(cfg80211_wext_giwencode);
 771
 772 int cfg80211_wext_siwfreq(struct net_device *dev,
 773                           struct iw_request_info *info,
 774                           struct iw_freq *wextfreq, char *extra)
 775 {
 776         struct wireless_dev *wdev = dev->ieee80211_ptr;
 777         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
 778         int freq, err;
 779
 780         switch (wdev->iftype) {
 781         case NL80211_IFTYPE_STATION:
 782                 return cfg80211_mgd_wext_siwfreq(dev, info, wextfreq, extra);
 783         case NL80211_IFTYPE_ADHOC:
 784                 return cfg80211_ibss_wext_siwfreq(dev, info, wextfreq, extra);
 785         case NL80211_IFTYPE_MONITOR:
 786         case NL80211_IFTYPE_WDS:
 787         case NL80211_IFTYPE_MESH_POINT:
 788                 freq = cfg80211_wext_freq(wdev->wiphy, wextfreq);
 789                 if (freq < 0)
 790                         return freq;
 791                 if (freq == 0)
 792                         return -EINVAL;
 793                 wdev_lock(wdev);
 794                 mutex_lock(&rdev->devlist_mtx);
 795                 err = cfg80211_set_freq(rdev, wdev, freq, NL80211_CHAN_NO_HT);
 796                 mutex_unlock(&rdev->devlist_mtx);
 797                 wdev_unlock(wdev);
 798                 return err;
 799         default:
 800                 return -EOPNOTSUPP;
 801         }
 802 }
 803 EXPORT_SYMBOL_GPL(cfg80211_wext_siwfreq);
 804
 805 int cfg80211_wext_giwfreq(struct net_device *dev,
 806                           struct iw_request_info *info,
 807                           struct iw_freq *freq, char *extra)
 808 {
 809         struct wireless_dev *wdev = dev->ieee80211_ptr;
 810
 811         switch (wdev->iftype) {
 812         case NL80211_IFTYPE_STATION:
 813                 return cfg80211_mgd_wext_giwfreq(dev, info, freq, extra);
 814         case NL80211_IFTYPE_ADHOC:
 815                 return cfg80211_ibss_wext_giwfreq(dev, info, freq, extra);
 816         default:
 817                 if (!wdev->channel)
 818                         return -EINVAL;
 819                 freq->m = wdev->channel->center_freq;
 820                 freq->e = 6;
 821                 return 0;
 822         }
 823 }
 824 EXPORT_SYMBOL_GPL(cfg80211_wext_giwfreq);
 825
 826 int cfg80211_wext_siwtxpower(struct net_device *dev,
 827                              struct iw_request_info *info,
 828                              union iwreq_data *data, char *extra)
 829 {
 830         struct wireless_dev *wdev = dev->ieee80211_ptr;
 831         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
 832         enum tx_power_setting type;
 833         int dbm = 0;
 834
 835         if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM)
 836                 return -EINVAL;
 837         if (data->txpower.flags & IW_TXPOW_RANGE)
 838                 return -EINVAL;
 839
 840         if (!rdev->ops->set_tx_power)
 841                 return -EOPNOTSUPP;
 842
 843         /* only change when not disabling */
 844         if (!data->txpower.disabled) {
 845                 rfkill_set_sw_state(rdev->rfkill, false);
 846
 847                 if (data->txpower.fixed) {
 848                         /*
 849                          * wext doesn't support negative values, see
 850                          * below where it's for automatic
 851                          */
 852                         if (data->txpower.value < 0)
 853                                 return -EINVAL;
 854                         dbm = data->txpower.value;
 855                         type = TX_POWER_FIXED;
 856                         /* TODO: do regulatory check! */
 857                 } else {
 858                         /*
 859                          * Automatic power level setting, max being the value
 860                          * passed in from userland.
 861                          */
 862                         if (data->txpower.value < 0) {
 863                                 type = TX_POWER_AUTOMATIC;
 864                         } else {
 865                                 dbm = data->txpower.value;
 866                                 type = TX_POWER_LIMITED;
 867                         }
 868                 }
 869         } else {
 870                 rfkill_set_sw_state(rdev->rfkill, true);
 871                 schedule_work(&rdev->rfkill_sync);
 872                 return 0;
 873         }
 874
 875         return rdev->ops->set_tx_power(wdev->wiphy, type, dbm);
 876 }
 877 EXPORT_SYMBOL_GPL(cfg80211_wext_siwtxpower);
 878
 879 int cfg80211_wext_giwtxpower(struct net_device *dev,
 880                              struct iw_request_info *info,
 881                              union iwreq_data *data, char *extra)
 882 {
 883         struct wireless_dev *wdev = dev->ieee80211_ptr;
 884         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
 885         int err, val;
 886
 887         if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM)
 888                 return -EINVAL;
 889         if (data->txpower.flags & IW_TXPOW_RANGE)
 890                 return -EINVAL;
 891
 892         if (!rdev->ops->get_tx_power)
 893                 return -EOPNOTSUPP;
 894
 895         err = rdev->ops->get_tx_power(wdev->wiphy, &val);
 896         if (err)
 897                 return err;
 898
 899         /* well... oh well */
 900         data->txpower.fixed = 1;
 901         data->txpower.disabled = rfkill_blocked(rdev->rfkill);
 902         data->txpower.value = val;
 903         data->txpower.flags = IW_TXPOW_DBM;
 904
 905         return 0;
 906 }
 907 EXPORT_SYMBOL_GPL(cfg80211_wext_giwtxpower);
 908
 909 static int cfg80211_set_auth_alg(struct wireless_dev *wdev,
 910                                  s32 auth_alg)
 911 {
 912         int nr_alg = 0;
 913
 914         if (!auth_alg)
 915                 return -EINVAL;
 916
 917         if (auth_alg & ~(IW_AUTH_ALG_OPEN_SYSTEM |
 918                          IW_AUTH_ALG_SHARED_KEY |
 919                          IW_AUTH_ALG_LEAP))
 920                 return -EINVAL;
 921
 922         if (auth_alg & IW_AUTH_ALG_OPEN_SYSTEM) {
 923                 nr_alg++;
 924                 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
 925         }
 926
 927         if (auth_alg & IW_AUTH_ALG_SHARED_KEY) {
 928                 nr_alg++;
 929                 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_SHARED_KEY;
 930         }
 931
 932         if (auth_alg & IW_AUTH_ALG_LEAP) {
 933                 nr_alg++;
 934                 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_NETWORK_EAP;
 935         }
 936
 937         if (nr_alg > 1)
 938                 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
 939
 940         return 0;
 941 }
 942
 943 static int cfg80211_set_wpa_version(struct wireless_dev *wdev, u32 wpa_versions)
 944 {
 945         if (wpa_versions & ~(IW_AUTH_WPA_VERSION_WPA |
 946                              IW_AUTH_WPA_VERSION_WPA2|
 947                              IW_AUTH_WPA_VERSION_DISABLED))
 948                 return -EINVAL;
 949
 950         if ((wpa_versions & IW_AUTH_WPA_VERSION_DISABLED) &&
 951             (wpa_versions & (IW_AUTH_WPA_VERSION_WPA|
 952                              IW_AUTH_WPA_VERSION_WPA2)))
 953                 return -EINVAL;
 954
 955         if (wpa_versions & IW_AUTH_WPA_VERSION_DISABLED)
 956                 wdev->wext.connect.crypto.wpa_versions &=
 957                         ~(NL80211_WPA_VERSION_1|NL80211_WPA_VERSION_2);
 958
 959         if (wpa_versions & IW_AUTH_WPA_VERSION_WPA)
 960                 wdev->wext.connect.crypto.wpa_versions |=
 961                         NL80211_WPA_VERSION_1;
 962
 963         if (wpa_versions & IW_AUTH_WPA_VERSION_WPA2)
 964                 wdev->wext.connect.crypto.wpa_versions |=
 965                         NL80211_WPA_VERSION_2;
 966
 967         return 0;
 968 }
 969
 970 static int cfg80211_set_cipher_group(struct wireless_dev *wdev, u32 cipher)
 971 {
 972         if (cipher & IW_AUTH_CIPHER_WEP40)
 973                 wdev->wext.connect.crypto.cipher_group =
 974                         WLAN_CIPHER_SUITE_WEP40;
 975         else if (cipher & IW_AUTH_CIPHER_WEP104)
 976                 wdev->wext.connect.crypto.cipher_group =
 977                         WLAN_CIPHER_SUITE_WEP104;
 978         else if (cipher & IW_AUTH_CIPHER_TKIP)
 979                 wdev->wext.connect.crypto.cipher_group =
 980                         WLAN_CIPHER_SUITE_TKIP;
 981         else if (cipher & IW_AUTH_CIPHER_CCMP)
 982                 wdev->wext.connect.crypto.cipher_group =
 983                         WLAN_CIPHER_SUITE_CCMP;
 984         else if (cipher & IW_AUTH_CIPHER_AES_CMAC)
 985                 wdev->wext.connect.crypto.cipher_group =
 986                         WLAN_CIPHER_SUITE_AES_CMAC;
 987         else if (cipher & IW_AUTH_CIPHER_NONE)
 988                 wdev->wext.connect.crypto.cipher_group = 0;
 989         else
 990                 return -EINVAL;
 991
 992         return 0;
 993 }
 994
 995 static int cfg80211_set_cipher_pairwise(struct wireless_dev *wdev, u32 cipher)
 996 {
 997         int nr_ciphers = 0;
 998         u32 *ciphers_pairwise = wdev->wext.connect.crypto.ciphers_pairwise;
 999
1000         if (cipher & IW_AUTH_CIPHER_WEP40) {
1001                 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_WEP40;
1002                 nr_ciphers++;
1003         }
1004
1005         if (cipher & IW_AUTH_CIPHER_WEP104) {
1006                 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_WEP104;
1007                 nr_ciphers++;
1008         }
1009
1010         if (cipher & IW_AUTH_CIPHER_TKIP) {
1011                 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_TKIP;
1012                 nr_ciphers++;
1013         }
1014
1015         if (cipher & IW_AUTH_CIPHER_CCMP) {
1016                 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_CCMP;
1017                 nr_ciphers++;
1018         }
1019
1020         if (cipher & IW_AUTH_CIPHER_AES_CMAC) {
1021                 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_AES_CMAC;
1022                 nr_ciphers++;
1023         }
1024
1025         BUILD_BUG_ON(NL80211_MAX_NR_CIPHER_SUITES < 5);
1026
1027         wdev->wext.connect.crypto.n_ciphers_pairwise = nr_ciphers;
1028
1029         return 0;
1030 }
1031
1032
1033 static int cfg80211_set_key_mgt(struct wireless_dev *wdev, u32 key_mgt)
1034 {
1035         int nr_akm_suites = 0;
1036
1037         if (key_mgt & ~(IW_AUTH_KEY_MGMT_802_1X |
1038                         IW_AUTH_KEY_MGMT_PSK))
1039                 return -EINVAL;
1040
1041         if (key_mgt & IW_AUTH_KEY_MGMT_802_1X) {
1042                 wdev->wext.connect.crypto.akm_suites[nr_akm_suites] =
1043                         WLAN_AKM_SUITE_8021X;
1044                 nr_akm_suites++;
1045         }
1046
1047         if (key_mgt & IW_AUTH_KEY_MGMT_PSK) {
1048                 wdev->wext.connect.crypto.akm_suites[nr_akm_suites] =
1049                         WLAN_AKM_SUITE_PSK;
1050                 nr_akm_suites++;
1051         }
1052
1053         wdev->wext.connect.crypto.n_akm_suites = nr_akm_suites;
1054
1055         return 0;
1056 }
1057
1058 int cfg80211_wext_siwauth(struct net_device *dev,
1059                           struct iw_request_info *info,
1060                           struct iw_param *data, char *extra)
1061 {
1062         struct wireless_dev *wdev = dev->ieee80211_ptr;
1063
1064         if (wdev->iftype != NL80211_IFTYPE_STATION)
1065                 return -EOPNOTSUPP;
1066
1067         switch (data->flags & IW_AUTH_INDEX) {
1068         case IW_AUTH_PRIVACY_INVOKED:
1069                 wdev->wext.connect.privacy = data->value;
1070                 return 0;
1071         case IW_AUTH_WPA_VERSION:
1072                 return cfg80211_set_wpa_version(wdev, data->value);
1073         case IW_AUTH_CIPHER_GROUP:
1074                 return cfg80211_set_cipher_group(wdev, data->value);
1075         case IW_AUTH_KEY_MGMT:
1076                 return cfg80211_set_key_mgt(wdev, data->value);
1077         case IW_AUTH_CIPHER_PAIRWISE:
1078                 return cfg80211_set_cipher_pairwise(wdev, data->value);
1079         case IW_AUTH_80211_AUTH_ALG:
1080                 return cfg80211_set_auth_alg(wdev, data->value);
1081         case IW_AUTH_WPA_ENABLED:
1082         case IW_AUTH_RX_UNENCRYPTED_EAPOL:
1083         case IW_AUTH_DROP_UNENCRYPTED:
1084         case IW_AUTH_MFP:
1085                 return 0;
1086         default:
1087                 return -EOPNOTSUPP;
1088         }
1089 }
1090 EXPORT_SYMBOL_GPL(cfg80211_wext_siwauth);
1091
1092 int cfg80211_wext_giwauth(struct net_device *dev,
1093                           struct iw_request_info *info,
1094                           struct iw_param *data, char *extra)
1095 {
1096         /* XXX: what do we need? */
1097
1098         return -EOPNOTSUPP;
1099 }
1100 EXPORT_SYMBOL_GPL(cfg80211_wext_giwauth);
1101
1102 int cfg80211_wext_siwpower(struct net_device *dev,
1103                            struct iw_request_info *info,
1104                            struct iw_param *wrq, char *extra)
1105 {
1106         struct wireless_dev *wdev = dev->ieee80211_ptr;
1107         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1108         bool ps = wdev->ps;
1109         int timeout = wdev->ps_timeout;
1110         int err;
1111
1112         if (wdev->iftype != NL80211_IFTYPE_STATION)
1113                 return -EINVAL;
1114
1115         if (!rdev->ops->set_power_mgmt)
1116                 return -EOPNOTSUPP;
1117
1118         if (wrq->disabled) {
1119                 ps = false;
1120         } else {
1121                 switch (wrq->flags & IW_POWER_MODE) {
1122                 case IW_POWER_ON:       /* If not specified */
1123                 case IW_POWER_MODE:     /* If set all mask */
1124                 case IW_POWER_ALL_R:    /* If explicitely state all */
1125                         ps = true;
1126                         break;
1127                 default:                /* Otherwise we ignore */
1128                         return -EINVAL;
1129                 }
1130
1131                 if (wrq->flags & ~(IW_POWER_MODE | IW_POWER_TIMEOUT))
1132                         return -EINVAL;
1133
1134                 if (wrq->flags & IW_POWER_TIMEOUT)
1135                         timeout = wrq->value / 1000;
1136         }
1137
1138         err = rdev->ops->set_power_mgmt(wdev->wiphy, dev, ps, timeout);
1139         if (err)
1140                 return err;
1141
1142         wdev->ps = ps;
1143         wdev->ps_timeout = timeout;
1144
1145         return 0;
1146
1147 }
1148 EXPORT_SYMBOL_GPL(cfg80211_wext_siwpower);
1149
1150 int cfg80211_wext_giwpower(struct net_device *dev,
1151                            struct iw_request_info *info,
1152                            struct iw_param *wrq, char *extra)
1153 {
1154         struct wireless_dev *wdev = dev->ieee80211_ptr;
1155
1156         wrq->disabled = !wdev->ps;
1157
1158         return 0;
1159 }
1160 EXPORT_SYMBOL_GPL(cfg80211_wext_giwpower);
1161
1162 static int cfg80211_wds_wext_siwap(struct net_device *dev,
1163                                    struct iw_request_info *info,
1164                                    struct sockaddr *addr, char *extra)
1165 {
1166         struct wireless_dev *wdev = dev->ieee80211_ptr;
1167         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1168         int err;
1169
1170         if (WARN_ON(wdev->iftype != NL80211_IFTYPE_WDS))
1171                 return -EINVAL;
1172
1173         if (addr->sa_family != ARPHRD_ETHER)
1174                 return -EINVAL;
1175
1176         if (netif_running(dev))
1177                 return -EBUSY;
1178
1179         if (!rdev->ops->set_wds_peer)
1180                 return -EOPNOTSUPP;
1181
1182         err = rdev->ops->set_wds_peer(wdev->wiphy, dev, (u8 *) &addr->sa_data);
1183         if (err)
1184                 return err;
1185
1186         memcpy(&wdev->wext.bssid, (u8 *) &addr->sa_data, ETH_ALEN);
1187
1188         return 0;
1189 }
1190
1191 static int cfg80211_wds_wext_giwap(struct net_device *dev,
1192                                    struct iw_request_info *info,
1193                                    struct sockaddr *addr, char *extra)
1194 {
1195         struct wireless_dev *wdev = dev->ieee80211_ptr;
1196
1197         if (WARN_ON(wdev->iftype != NL80211_IFTYPE_WDS))
1198                 return -EINVAL;
1199
1200         addr->sa_family = ARPHRD_ETHER;
1201         memcpy(&addr->sa_data, wdev->wext.bssid, ETH_ALEN);
1202
1203         return 0;
1204 }
1205
1206 int cfg80211_wext_siwrate(struct net_device *dev,
1207                           struct iw_request_info *info,
1208                           struct iw_param *rate, char *extra)
1209 {
1210         struct wireless_dev *wdev = dev->ieee80211_ptr;
1211         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1212         struct cfg80211_bitrate_mask mask;
1213         u32 fixed, maxrate;
1214         struct ieee80211_supported_band *sband;
1215         int band, ridx;
1216         bool match = false;
1217
1218         if (!rdev->ops->set_bitrate_mask)
1219                 return -EOPNOTSUPP;
1220
1221         memset(&mask, 0, sizeof(mask));
1222         fixed = 0;
1223         maxrate = (u32)-1;
1224
1225         if (rate->value < 0) {
1226                 /* nothing */
1227         } else if (rate->fixed) {
1228                 fixed = rate->value / 100000;
1229         } else {
1230                 maxrate = rate->value / 100000;
1231         }
1232
1233         for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
1234                 sband = wdev->wiphy->bands[band];
1235                 if (sband == NULL)
1236                         continue;
1237                 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
1238                         struct ieee80211_rate *srate = &sband->bitrates[ridx];
1239                         if (fixed == srate->bitrate) {
1240                                 mask.control[band].legacy = 1 << ridx;
1241                                 match = true;
1242                                 break;
1243                         }
1244                         if (srate->bitrate <= maxrate) {
1245                                 mask.control[band].legacy |= 1 << ridx;
1246                                 match = true;
1247                         }
1248                 }
1249         }
1250
1251         if (!match)
1252                 return -EINVAL;
1253
1254         return rdev->ops->set_bitrate_mask(wdev->wiphy, dev, NULL, &mask);
1255 }
1256 EXPORT_SYMBOL_GPL(cfg80211_wext_siwrate);
1257
1258 int cfg80211_wext_giwrate(struct net_device *dev,
1259                           struct iw_request_info *info,
1260                           struct iw_param *rate, char *extra)
1261 {
1262         struct wireless_dev *wdev = dev->ieee80211_ptr;
1263         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1264         /* we are under RTNL - globally locked - so can use a static struct */
1265         static struct station_info sinfo;
1266         u8 addr[ETH_ALEN];
1267         int err;
1268
1269         if (wdev->iftype != NL80211_IFTYPE_STATION)
1270                 return -EOPNOTSUPP;
1271
1272         if (!rdev->ops->get_station)
1273                 return -EOPNOTSUPP;
1274
1275         err = 0;
1276         wdev_lock(wdev);
1277         if (wdev->current_bss)
1278                 memcpy(addr, wdev->current_bss->pub.bssid, ETH_ALEN);
1279         else
1280                 err = -EOPNOTSUPP;
1281         wdev_unlock(wdev);
1282         if (err)
1283                 return err;
1284
1285         err = rdev->ops->get_station(&rdev->wiphy, dev, addr, &sinfo);
1286         if (err)
1287                 return err;
1288
1289         if (!(sinfo.filled & STATION_INFO_TX_BITRATE))
1290                 return -EOPNOTSUPP;
1291
1292         rate->value = 100000 * cfg80211_calculate_bitrate(&sinfo.txrate);
1293
1294         return 0;
1295 }
1296 EXPORT_SYMBOL_GPL(cfg80211_wext_giwrate);
1297
1298 /* Get wireless statistics.  Called by /proc/net/wireless and by SIOCGIWSTATS */
1299 struct iw_statistics *cfg80211_wireless_stats(struct net_device *dev)
1300 {
1301         struct wireless_dev *wdev = dev->ieee80211_ptr;
1302         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1303         /* we are under RTNL - globally locked - so can use static structs */
1304         static struct iw_statistics wstats;
1305         static struct station_info sinfo;
1306         u8 bssid[ETH_ALEN];
1307
1308         if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION)
1309                 return NULL;
1310
1311         if (!rdev->ops->get_station)
1312                 return NULL;
1313
1314         /* Grab BSSID of current BSS, if any */
1315         wdev_lock(wdev);
1316         if (!wdev->current_bss) {
1317                 wdev_unlock(wdev);
1318                 return NULL;
1319         }
1320         memcpy(bssid, wdev->current_bss->pub.bssid, ETH_ALEN);
1321         wdev_unlock(wdev);
1322
1323         if (rdev->ops->get_station(&rdev->wiphy, dev, bssid, &sinfo))
1324                 return NULL;
1325
1326         memset(&wstats, 0, sizeof(wstats));
1327
1328         switch (rdev->wiphy.signal_type) {
1329         case CFG80211_SIGNAL_TYPE_MBM:
1330                 if (sinfo.filled & STATION_INFO_SIGNAL) {
1331                         int sig = sinfo.signal;
1332                         wstats.qual.updated |= IW_QUAL_LEVEL_UPDATED;
1333                         wstats.qual.updated |= IW_QUAL_QUAL_UPDATED;
1334                         wstats.qual.updated |= IW_QUAL_DBM;
1335                         wstats.qual.level = sig;
1336                         if (sig < -110)
1337                                 sig = -110;
1338                         else if (sig > -40)
1339                                 sig = -40;
1340                         wstats.qual.qual = sig + 110;
1341                         break;
1342                 }
1343         case CFG80211_SIGNAL_TYPE_UNSPEC:
1344                 if (sinfo.filled & STATION_INFO_SIGNAL) {
1345                         wstats.qual.updated |= IW_QUAL_LEVEL_UPDATED;
1346                         wstats.qual.updated |= IW_QUAL_QUAL_UPDATED;
1347                         wstats.qual.level = sinfo.signal;
1348                         wstats.qual.qual = sinfo.signal;
1349                         break;
1350                 }
1351         default:
1352                 wstats.qual.updated |= IW_QUAL_LEVEL_INVALID;
1353                 wstats.qual.updated |= IW_QUAL_QUAL_INVALID;
1354         }
1355
1356         wstats.qual.updated |= IW_QUAL_NOISE_INVALID;
1357
1358         return &wstats;
1359 }
1360 EXPORT_SYMBOL_GPL(cfg80211_wireless_stats);
1361
1362 int cfg80211_wext_siwap(struct net_device *dev,
1363                         struct iw_request_info *info,
1364                         struct sockaddr *ap_addr, char *extra)
1365 {
1366         struct wireless_dev *wdev = dev->ieee80211_ptr;
1367
1368         switch (wdev->iftype) {
1369         case NL80211_IFTYPE_ADHOC:
1370                 return cfg80211_ibss_wext_siwap(dev, info, ap_addr, extra);
1371         case NL80211_IFTYPE_STATION:
1372                 return cfg80211_mgd_wext_siwap(dev, info, ap_addr, extra);
1373         case NL80211_IFTYPE_WDS:
1374                 return cfg80211_wds_wext_siwap(dev, info, ap_addr, extra);
1375         default:
1376                 return -EOPNOTSUPP;
1377         }
1378 }
1379 EXPORT_SYMBOL_GPL(cfg80211_wext_siwap);
1380
1381 int cfg80211_wext_giwap(struct net_device *dev,
1382                         struct iw_request_info *info,
1383                         struct sockaddr *ap_addr, char *extra)
1384 {
1385         struct wireless_dev *wdev = dev->ieee80211_ptr;
1386
1387         switch (wdev->iftype) {
1388         case NL80211_IFTYPE_ADHOC:
1389                 return cfg80211_ibss_wext_giwap(dev, info, ap_addr, extra);
1390         case NL80211_IFTYPE_STATION:
1391                 return cfg80211_mgd_wext_giwap(dev, info, ap_addr, extra);
1392         case NL80211_IFTYPE_WDS:
1393                 return cfg80211_wds_wext_giwap(dev, info, ap_addr, extra);
1394         default:
1395                 return -EOPNOTSUPP;
1396         }
1397 }
1398 EXPORT_SYMBOL_GPL(cfg80211_wext_giwap);
1399
1400 int cfg80211_wext_siwessid(struct net_device *dev,
1401                            struct iw_request_info *info,
1402                            struct iw_point *data, char *ssid)
1403 {
1404         struct wireless_dev *wdev = dev->ieee80211_ptr;
1405
1406         switch (wdev->iftype) {
1407         case NL80211_IFTYPE_ADHOC:
1408                 return cfg80211_ibss_wext_siwessid(dev, info, data, ssid);
1409         case NL80211_IFTYPE_STATION:
1410                 return cfg80211_mgd_wext_siwessid(dev, info, data, ssid);
1411         default:
1412                 return -EOPNOTSUPP;
1413         }
1414 }
1415 EXPORT_SYMBOL_GPL(cfg80211_wext_siwessid);
1416
1417 int cfg80211_wext_giwessid(struct net_device *dev,
1418                            struct iw_request_info *info,
1419                            struct iw_point *data, char *ssid)
1420 {
1421         struct wireless_dev *wdev = dev->ieee80211_ptr;
1422
1423         switch (wdev->iftype) {
1424         case NL80211_IFTYPE_ADHOC:
1425                 return cfg80211_ibss_wext_giwessid(dev, info, data, ssid);
1426         case NL80211_IFTYPE_STATION:
1427                 return cfg80211_mgd_wext_giwessid(dev, info, data, ssid);
1428         default:
1429                 return -EOPNOTSUPP;
1430         }
1431 }
1432 EXPORT_SYMBOL_GPL(cfg80211_wext_giwessid);
1433
1434 int cfg80211_wext_siwpmksa(struct net_device *dev,
1435                            struct iw_request_info *info,
1436                            struct iw_point *data, char *extra)
1437 {
1438         struct wireless_dev *wdev = dev->ieee80211_ptr;
1439         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1440         struct cfg80211_pmksa cfg_pmksa;
1441         struct iw_pmksa *pmksa = (struct iw_pmksa *)extra;
1442
1443         memset(&cfg_pmksa, 0, sizeof(struct cfg80211_pmksa));
1444
1445         if (wdev->iftype != NL80211_IFTYPE_STATION)
1446                 return -EINVAL;
1447
1448         cfg_pmksa.bssid = pmksa->bssid.sa_data;
1449         cfg_pmksa.pmkid = pmksa->pmkid;
1450
1451         switch (pmksa->cmd) {
1452         case IW_PMKSA_ADD:
1453                 if (!rdev->ops->set_pmksa)
1454                         return -EOPNOTSUPP;
1455
1456                 return rdev->ops->set_pmksa(&rdev->wiphy, dev, &cfg_pmksa);
1457
1458         case IW_PMKSA_REMOVE:
1459                 if (!rdev->ops->del_pmksa)
1460                         return -EOPNOTSUPP;
1461
1462                 return rdev->ops->del_pmksa(&rdev->wiphy, dev, &cfg_pmksa);
1463
1464         case IW_PMKSA_FLUSH:
1465                 if (!rdev->ops->flush_pmksa)
1466                         return -EOPNOTSUPP;
1467
1468                 return rdev->ops->flush_pmksa(&rdev->wiphy, dev);
1469
1470         default:
1471                 return -EOPNOTSUPP;
1472         }
1473 }
1474
1475 static const iw_handler cfg80211_handlers[] = {
1476         [IW_IOCTL_IDX(SIOCGIWNAME)]     = (iw_handler) cfg80211_wext_giwname,
1477         [IW_IOCTL_IDX(SIOCSIWFREQ)]     = (iw_handler) cfg80211_wext_siwfreq,
1478         [IW_IOCTL_IDX(SIOCGIWFREQ)]     = (iw_handler) cfg80211_wext_giwfreq,
1479         [IW_IOCTL_IDX(SIOCSIWMODE)]     = (iw_handler) cfg80211_wext_siwmode,
1480         [IW_IOCTL_IDX(SIOCGIWMODE)]     = (iw_handler) cfg80211_wext_giwmode,
1481         [IW_IOCTL_IDX(SIOCGIWRANGE)]    = (iw_handler) cfg80211_wext_giwrange,
1482         [IW_IOCTL_IDX(SIOCSIWAP)]       = (iw_handler) cfg80211_wext_siwap,
1483         [IW_IOCTL_IDX(SIOCGIWAP)]       = (iw_handler) cfg80211_wext_giwap,
1484         [IW_IOCTL_IDX(SIOCSIWMLME)]     = (iw_handler) cfg80211_wext_siwmlme,
1485         [IW_IOCTL_IDX(SIOCSIWSCAN)]     = (iw_handler) cfg80211_wext_siwscan,
1486         [IW_IOCTL_IDX(SIOCGIWSCAN)]     = (iw_handler) cfg80211_wext_giwscan,
1487         [IW_IOCTL_IDX(SIOCSIWESSID)]    = (iw_handler) cfg80211_wext_siwessid,
1488         [IW_IOCTL_IDX(SIOCGIWESSID)]    = (iw_handler) cfg80211_wext_giwessid,
1489         [IW_IOCTL_IDX(SIOCSIWRATE)]     = (iw_handler) cfg80211_wext_siwrate,
1490         [IW_IOCTL_IDX(SIOCGIWRATE)]     = (iw_handler) cfg80211_wext_giwrate,
1491         [IW_IOCTL_IDX(SIOCSIWRTS)]      = (iw_handler) cfg80211_wext_siwrts,
1492         [IW_IOCTL_IDX(SIOCGIWRTS)]      = (iw_handler) cfg80211_wext_giwrts,
1493         [IW_IOCTL_IDX(SIOCSIWFRAG)]     = (iw_handler) cfg80211_wext_siwfrag,
1494         [IW_IOCTL_IDX(SIOCGIWFRAG)]     = (iw_handler) cfg80211_wext_giwfrag,
1495         [IW_IOCTL_IDX(SIOCSIWTXPOW)]    = (iw_handler) cfg80211_wext_siwtxpower,
1496         [IW_IOCTL_IDX(SIOCGIWTXPOW)]    = (iw_handler) cfg80211_wext_giwtxpower,
1497         [IW_IOCTL_IDX(SIOCSIWRETRY)]    = (iw_handler) cfg80211_wext_siwretry,
1498         [IW_IOCTL_IDX(SIOCGIWRETRY)]    = (iw_handler) cfg80211_wext_giwretry,
1499         [IW_IOCTL_IDX(SIOCSIWENCODE)]   = (iw_handler) cfg80211_wext_siwencode,
1500         [IW_IOCTL_IDX(SIOCGIWENCODE)]   = (iw_handler) cfg80211_wext_giwencode,
1501         [IW_IOCTL_IDX(SIOCSIWPOWER)]    = (iw_handler) cfg80211_wext_siwpower,
1502         [IW_IOCTL_IDX(SIOCGIWPOWER)]    = (iw_handler) cfg80211_wext_giwpower,
1503         [IW_IOCTL_IDX(SIOCSIWGENIE)]    = (iw_handler) cfg80211_wext_siwgenie,
1504         [IW_IOCTL_IDX(SIOCSIWAUTH)]     = (iw_handler) cfg80211_wext_siwauth,
1505         [IW_IOCTL_IDX(SIOCGIWAUTH)]     = (iw_handler) cfg80211_wext_giwauth,
1506         [IW_IOCTL_IDX(SIOCSIWENCODEEXT)]= (iw_handler) cfg80211_wext_siwencodeext,
1507         [IW_IOCTL_IDX(SIOCSIWPMKSA)]    = (iw_handler) cfg80211_wext_siwpmksa,
1508 };
1509
1510 const struct iw_handler_def cfg80211_wext_handler = {
1511         .num_standard           = ARRAY_SIZE(cfg80211_handlers),
1512         .standard               = cfg80211_handlers,
1513         .get_wireless_stats = cfg80211_wireless_stats,
1514 };