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                 enum ieee80211_band band = IEEE80211_BAND_2GHZ;
 271                 if (freq->m < 0)
 272                         return 0;
 273                 if (freq->m > 14)
 274                         band = IEEE80211_BAND_5GHZ;
 275                 return ieee80211_channel_to_frequency(freq->m, band);
 276         } else {
 277                 int i, div = 1000000;
 278                 for (i = 0; i < freq->e; i++)
 279                         div /= 10;
 280                 if (div <= 0)
 281                         return -EINVAL;
 282                 return freq->m / div;
 283         }
 284 }
 285
 286 int cfg80211_wext_siwrts(struct net_device *dev,
 287                          struct iw_request_info *info,
 288                          struct iw_param *rts, char *extra)
 289 {
 290         struct wireless_dev *wdev = dev->ieee80211_ptr;
 291         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
 292         u32 orts = wdev->wiphy->rts_threshold;
 293         int err;
 294
 295         if (rts->disabled || !rts->fixed)
 296                 wdev->wiphy->rts_threshold = (u32) -1;
 297         else if (rts->value < 0)
 298                 return -EINVAL;
 299         else
 300                 wdev->wiphy->rts_threshold = rts->value;
 301
 302         err = rdev->ops->set_wiphy_params(wdev->wiphy,
 303                                           WIPHY_PARAM_RTS_THRESHOLD);
 304         if (err)
 305                 wdev->wiphy->rts_threshold = orts;
 306
 307         return err;
 308 }
 309 EXPORT_SYMBOL_GPL(cfg80211_wext_siwrts);
 310
 311 int cfg80211_wext_giwrts(struct net_device *dev,
 312                          struct iw_request_info *info,
 313                          struct iw_param *rts, char *extra)
 314 {
 315         struct wireless_dev *wdev = dev->ieee80211_ptr;
 316
 317         rts->value = wdev->wiphy->rts_threshold;
 318         rts->disabled = rts->value == (u32) -1;
 319         rts->fixed = 1;
 320
 321         return 0;
 322 }
 323 EXPORT_SYMBOL_GPL(cfg80211_wext_giwrts);
 324
 325 int cfg80211_wext_siwfrag(struct net_device *dev,
 326                           struct iw_request_info *info,
 327                           struct iw_param *frag, char *extra)
 328 {
 329         struct wireless_dev *wdev = dev->ieee80211_ptr;
 330         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
 331         u32 ofrag = wdev->wiphy->frag_threshold;
 332         int err;
 333
 334         if (frag->disabled || !frag->fixed)
 335                 wdev->wiphy->frag_threshold = (u32) -1;
 336         else if (frag->value < 256)
 337                 return -EINVAL;
 338         else {
 339                 /* Fragment length must be even, so strip LSB. */
 340                 wdev->wiphy->frag_threshold = frag->value & ~0x1;
 341         }
 342
 343         err = rdev->ops->set_wiphy_params(wdev->wiphy,
 344                                           WIPHY_PARAM_FRAG_THRESHOLD);
 345         if (err)
 346                 wdev->wiphy->frag_threshold = ofrag;
 347
 348         return err;
 349 }
 350 EXPORT_SYMBOL_GPL(cfg80211_wext_siwfrag);
 351
 352 int cfg80211_wext_giwfrag(struct net_device *dev,
 353                           struct iw_request_info *info,
 354                           struct iw_param *frag, char *extra)
 355 {
 356         struct wireless_dev *wdev = dev->ieee80211_ptr;
 357
 358         frag->value = wdev->wiphy->frag_threshold;
 359         frag->disabled = frag->value == (u32) -1;
 360         frag->fixed = 1;
 361
 362         return 0;
 363 }
 364 EXPORT_SYMBOL_GPL(cfg80211_wext_giwfrag);
 365
 366 int cfg80211_wext_siwretry(struct net_device *dev,
 367                            struct iw_request_info *info,
 368                            struct iw_param *retry, char *extra)
 369 {
 370         struct wireless_dev *wdev = dev->ieee80211_ptr;
 371         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
 372         u32 changed = 0;
 373         u8 olong = wdev->wiphy->retry_long;
 374         u8 oshort = wdev->wiphy->retry_short;
 375         int err;
 376
 377         if (retry->disabled ||
 378             (retry->flags & IW_RETRY_TYPE) != IW_RETRY_LIMIT)
 379                 return -EINVAL;
 380
 381         if (retry->flags & IW_RETRY_LONG) {
 382                 wdev->wiphy->retry_long = retry->value;
 383                 changed |= WIPHY_PARAM_RETRY_LONG;
 384         } else if (retry->flags & IW_RETRY_SHORT) {
 385                 wdev->wiphy->retry_short = retry->value;
 386                 changed |= WIPHY_PARAM_RETRY_SHORT;
 387         } else {
 388                 wdev->wiphy->retry_short = retry->value;
 389                 wdev->wiphy->retry_long = retry->value;
 390                 changed |= WIPHY_PARAM_RETRY_LONG;
 391                 changed |= WIPHY_PARAM_RETRY_SHORT;
 392         }
 393
 394         if (!changed)
 395                 return 0;
 396
 397         err = rdev->ops->set_wiphy_params(wdev->wiphy, changed);
 398         if (err) {
 399                 wdev->wiphy->retry_short = oshort;
 400                 wdev->wiphy->retry_long = olong;
 401         }
 402
 403         return err;
 404 }
 405 EXPORT_SYMBOL_GPL(cfg80211_wext_siwretry);
 406
 407 int cfg80211_wext_giwretry(struct net_device *dev,
 408                            struct iw_request_info *info,
 409                            struct iw_param *retry, char *extra)
 410 {
 411         struct wireless_dev *wdev = dev->ieee80211_ptr;
 412
 413         retry->disabled = 0;
 414
 415         if (retry->flags == 0 || (retry->flags & IW_RETRY_SHORT)) {
 416                 /*
 417                  * First return short value, iwconfig will ask long value
 418                  * later if needed
 419                  */
 420                 retry->flags |= IW_RETRY_LIMIT;
 421                 retry->value = wdev->wiphy->retry_short;
 422                 if (wdev->wiphy->retry_long != wdev->wiphy->retry_short)
 423                         retry->flags |= IW_RETRY_LONG;
 424
 425                 return 0;
 426         }
 427
 428         if (retry->flags & IW_RETRY_LONG) {
 429                 retry->flags = IW_RETRY_LIMIT | IW_RETRY_LONG;
 430                 retry->value = wdev->wiphy->retry_long;
 431         }
 432
 433         return 0;
 434 }
 435 EXPORT_SYMBOL_GPL(cfg80211_wext_giwretry);
 436
 437 static int __cfg80211_set_encryption(struct cfg80211_registered_device *rdev,
 438                                      struct net_device *dev, bool pairwise,
 439                                      const u8 *addr, bool remove, bool tx_key,
 440                                      int idx, struct key_params *params)
 441 {
 442         struct wireless_dev *wdev = dev->ieee80211_ptr;
 443         int err, i;
 444         bool rejoin = false;
 445
 446         if (pairwise && !addr)
 447                 return -EINVAL;
 448
 449         if (!wdev->wext.keys) {
 450                 wdev->wext.keys = kzalloc(sizeof(*wdev->wext.keys),
 451                                               GFP_KERNEL);
 452                 if (!wdev->wext.keys)
 453                         return -ENOMEM;
 454                 for (i = 0; i < 6; i++)
 455                         wdev->wext.keys->params[i].key =
 456                                 wdev->wext.keys->data[i];
 457         }
 458
 459         if (wdev->iftype != NL80211_IFTYPE_ADHOC &&
 460             wdev->iftype != NL80211_IFTYPE_STATION)
 461                 return -EOPNOTSUPP;
 462
 463         if (params->cipher == WLAN_CIPHER_SUITE_AES_CMAC) {
 464                 if (!wdev->current_bss)
 465                         return -ENOLINK;
 466
 467                 if (!rdev->ops->set_default_mgmt_key)
 468                         return -EOPNOTSUPP;
 469
 470                 if (idx < 4 || idx > 5)
 471                         return -EINVAL;
 472         } else if (idx < 0 || idx > 3)
 473                 return -EINVAL;
 474
 475         if (remove) {
 476                 err = 0;
 477                 if (wdev->current_bss) {
 478                         /*
 479                          * If removing the current TX key, we will need to
 480                          * join a new IBSS without the privacy bit clear.
 481                          */
 482                         if (idx == wdev->wext.default_key &&
 483                             wdev->iftype == NL80211_IFTYPE_ADHOC) {
 484                                 __cfg80211_leave_ibss(rdev, wdev->netdev, true);
 485                                 rejoin = true;
 486                         }
 487
 488                         if (!pairwise && addr &&
 489                             !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
 490                                 err = -ENOENT;
 491                         else
 492                                 err = rdev->ops->del_key(&rdev->wiphy, dev, idx,
 493                                                          pairwise, addr);
 494                 }
 495                 wdev->wext.connect.privacy = false;
 496                 /*
 497                  * Applications using wireless extensions expect to be
 498                  * able to delete keys that don't exist, so allow that.
 499                  */
 500                 if (err == -ENOENT)
 501                         err = 0;
 502                 if (!err) {
 503                         if (!addr) {
 504                                 wdev->wext.keys->params[idx].key_len = 0;
 505                                 wdev->wext.keys->params[idx].cipher = 0;
 506                         }
 507                         if (idx == wdev->wext.default_key)
 508                                 wdev->wext.default_key = -1;
 509                         else if (idx == wdev->wext.default_mgmt_key)
 510                                 wdev->wext.default_mgmt_key = -1;
 511                 }
 512
 513                 if (!err && rejoin)
 514                         err = cfg80211_ibss_wext_join(rdev, wdev);
 515
 516                 return err;
 517         }
 518
 519         if (addr)
 520                 tx_key = false;
 521
 522         if (cfg80211_validate_key_settings(rdev, params, idx, pairwise, addr))
 523                 return -EINVAL;
 524
 525         err = 0;
 526         if (wdev->current_bss)
 527                 err = rdev->ops->add_key(&rdev->wiphy, dev, idx,
 528                                          pairwise, addr, params);
 529         if (err)
 530                 return err;
 531
 532         if (!addr) {
 533                 wdev->wext.keys->params[idx] = *params;
 534                 memcpy(wdev->wext.keys->data[idx],
 535                         params->key, params->key_len);
 536                 wdev->wext.keys->params[idx].key =
 537                         wdev->wext.keys->data[idx];
 538         }
 539
 540         if ((params->cipher == WLAN_CIPHER_SUITE_WEP40 ||
 541              params->cipher == WLAN_CIPHER_SUITE_WEP104) &&
 542             (tx_key || (!addr && wdev->wext.default_key == -1))) {
 543                 if (wdev->current_bss) {
 544                         /*
 545                          * If we are getting a new TX key from not having
 546                          * had one before we need to join a new IBSS with
 547                          * the privacy bit set.
 548                          */
 549                         if (wdev->iftype == NL80211_IFTYPE_ADHOC &&
 550                             wdev->wext.default_key == -1) {
 551                                 __cfg80211_leave_ibss(rdev, wdev->netdev, true);
 552                                 rejoin = true;
 553                         }
 554                         err = rdev->ops->set_default_key(&rdev->wiphy, dev,
 555                                                          idx, true, true);
 556                 }
 557                 if (!err) {
 558                         wdev->wext.default_key = idx;
 559                         if (rejoin)
 560                                 err = cfg80211_ibss_wext_join(rdev, wdev);
 561                 }
 562                 return err;
 563         }
 564
 565         if (params->cipher == WLAN_CIPHER_SUITE_AES_CMAC &&
 566             (tx_key || (!addr && wdev->wext.default_mgmt_key == -1))) {
 567                 if (wdev->current_bss)
 568                         err = rdev->ops->set_default_mgmt_key(&rdev->wiphy,
 569                                                               dev, idx);
 570                 if (!err)
 571                         wdev->wext.default_mgmt_key = idx;
 572                 return err;
 573         }
 574
 575         return 0;
 576 }
 577
 578 static int cfg80211_set_encryption(struct cfg80211_registered_device *rdev,
 579                                    struct net_device *dev, bool pairwise,
 580                                    const u8 *addr, bool remove, bool tx_key,
 581                                    int idx, struct key_params *params)
 582 {
 583         int err;
 584
 585         /* devlist mutex needed for possible IBSS re-join */
 586         mutex_lock(&rdev->devlist_mtx);
 587         wdev_lock(dev->ieee80211_ptr);
 588         err = __cfg80211_set_encryption(rdev, dev, pairwise, addr,
 589                                         remove, tx_key, idx, params);
 590         wdev_unlock(dev->ieee80211_ptr);
 591         mutex_unlock(&rdev->devlist_mtx);
 592
 593         return err;
 594 }
 595
 596 int cfg80211_wext_siwencode(struct net_device *dev,
 597                             struct iw_request_info *info,
 598                             struct iw_point *erq, char *keybuf)
 599 {
 600         struct wireless_dev *wdev = dev->ieee80211_ptr;
 601         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
 602         int idx, err;
 603         bool remove = false;
 604         struct key_params params;
 605
 606         if (wdev->iftype != NL80211_IFTYPE_STATION &&
 607             wdev->iftype != NL80211_IFTYPE_ADHOC)
 608                 return -EOPNOTSUPP;
 609
 610         /* no use -- only MFP (set_default_mgmt_key) is optional */
 611         if (!rdev->ops->del_key ||
 612             !rdev->ops->add_key ||
 613             !rdev->ops->set_default_key)
 614                 return -EOPNOTSUPP;
 615
 616         idx = erq->flags & IW_ENCODE_INDEX;
 617         if (idx == 0) {
 618                 idx = wdev->wext.default_key;
 619                 if (idx < 0)
 620                         idx = 0;
 621         } else if (idx < 1 || idx > 4)
 622                 return -EINVAL;
 623         else
 624                 idx--;
 625
 626         if (erq->flags & IW_ENCODE_DISABLED)
 627                 remove = true;
 628         else if (erq->length == 0) {
 629                 /* No key data - just set the default TX key index */
 630                 err = 0;
 631                 wdev_lock(wdev);
 632                 if (wdev->current_bss)
 633                         err = rdev->ops->set_default_key(&rdev->wiphy, dev,
 634                                                          idx, true, true);
 635                 if (!err)
 636                         wdev->wext.default_key = idx;
 637                 wdev_unlock(wdev);
 638                 return err;
 639         }
 640
 641         memset(&params, 0, sizeof(params));
 642         params.key = keybuf;
 643         params.key_len = erq->length;
 644         if (erq->length == 5)
 645                 params.cipher = WLAN_CIPHER_SUITE_WEP40;
 646         else if (erq->length == 13)
 647                 params.cipher = WLAN_CIPHER_SUITE_WEP104;
 648         else if (!remove)
 649                 return -EINVAL;
 650
 651         return cfg80211_set_encryption(rdev, dev, false, NULL, remove,
 652                                        wdev->wext.default_key == -1,
 653                                        idx, &params);
 654 }
 655 EXPORT_SYMBOL_GPL(cfg80211_wext_siwencode);
 656
 657 int cfg80211_wext_siwencodeext(struct net_device *dev,
 658                                struct iw_request_info *info,
 659                                struct iw_point *erq, char *extra)
 660 {
 661         struct wireless_dev *wdev = dev->ieee80211_ptr;
 662         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
 663         struct iw_encode_ext *ext = (struct iw_encode_ext *) extra;
 664         const u8 *addr;
 665         int idx;
 666         bool remove = false;
 667         struct key_params params;
 668         u32 cipher;
 669
 670         if (wdev->iftype != NL80211_IFTYPE_STATION &&
 671             wdev->iftype != NL80211_IFTYPE_ADHOC)
 672                 return -EOPNOTSUPP;
 673
 674         /* no use -- only MFP (set_default_mgmt_key) is optional */
 675         if (!rdev->ops->del_key ||
 676             !rdev->ops->add_key ||
 677             !rdev->ops->set_default_key)
 678                 return -EOPNOTSUPP;
 679
 680         switch (ext->alg) {
 681         case IW_ENCODE_ALG_NONE:
 682                 remove = true;
 683                 cipher = 0;
 684                 break;
 685         case IW_ENCODE_ALG_WEP:
 686                 if (ext->key_len == 5)
 687                         cipher = WLAN_CIPHER_SUITE_WEP40;
 688                 else if (ext->key_len == 13)
 689                         cipher = WLAN_CIPHER_SUITE_WEP104;
 690                 else
 691                         return -EINVAL;
 692                 break;
 693         case IW_ENCODE_ALG_TKIP:
 694                 cipher = WLAN_CIPHER_SUITE_TKIP;
 695                 break;
 696         case IW_ENCODE_ALG_CCMP:
 697                 cipher = WLAN_CIPHER_SUITE_CCMP;
 698                 break;
 699         case IW_ENCODE_ALG_AES_CMAC:
 700                 cipher = WLAN_CIPHER_SUITE_AES_CMAC;
 701                 break;
 702         default:
 703                 return -EOPNOTSUPP;
 704         }
 705
 706         if (erq->flags & IW_ENCODE_DISABLED)
 707                 remove = true;
 708
 709         idx = erq->flags & IW_ENCODE_INDEX;
 710         if (cipher == WLAN_CIPHER_SUITE_AES_CMAC) {
 711                 if (idx < 4 || idx > 5) {
 712                         idx = wdev->wext.default_mgmt_key;
 713                         if (idx < 0)
 714                                 return -EINVAL;
 715                 } else
 716                         idx--;
 717         } else {
 718                 if (idx < 1 || idx > 4) {
 719                         idx = wdev->wext.default_key;
 720                         if (idx < 0)
 721                                 return -EINVAL;
 722                 } else
 723                         idx--;
 724         }
 725
 726         addr = ext->addr.sa_data;
 727         if (is_broadcast_ether_addr(addr))
 728                 addr = NULL;
 729
 730         memset(&params, 0, sizeof(params));
 731         params.key = ext->key;
 732         params.key_len = ext->key_len;
 733         params.cipher = cipher;
 734
 735         if (ext->ext_flags & IW_ENCODE_EXT_RX_SEQ_VALID) {
 736                 params.seq = ext->rx_seq;
 737                 params.seq_len = 6;
 738         }
 739
 740         return cfg80211_set_encryption(
 741                         rdev, dev,
 742                         !(ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY),
 743                         addr, remove,
 744                         ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY,
 745                         idx, &params);
 746 }
 747 EXPORT_SYMBOL_GPL(cfg80211_wext_siwencodeext);
 748
 749 int cfg80211_wext_giwencode(struct net_device *dev,
 750                             struct iw_request_info *info,
 751                             struct iw_point *erq, char *keybuf)
 752 {
 753         struct wireless_dev *wdev = dev->ieee80211_ptr;
 754         int idx;
 755
 756         if (wdev->iftype != NL80211_IFTYPE_STATION &&
 757             wdev->iftype != NL80211_IFTYPE_ADHOC)
 758                 return -EOPNOTSUPP;
 759
 760         idx = erq->flags & IW_ENCODE_INDEX;
 761         if (idx == 0) {
 762                 idx = wdev->wext.default_key;
 763                 if (idx < 0)
 764                         idx = 0;
 765         } else if (idx < 1 || idx > 4)
 766                 return -EINVAL;
 767         else
 768                 idx--;
 769
 770         erq->flags = idx + 1;
 771
 772         if (!wdev->wext.keys || !wdev->wext.keys->params[idx].cipher) {
 773                 erq->flags |= IW_ENCODE_DISABLED;
 774                 erq->length = 0;
 775                 return 0;
 776         }
 777
 778         erq->length = min_t(size_t, erq->length,
 779                             wdev->wext.keys->params[idx].key_len);
 780         memcpy(keybuf, wdev->wext.keys->params[idx].key, erq->length);
 781         erq->flags |= IW_ENCODE_ENABLED;
 782
 783         return 0;
 784 }
 785 EXPORT_SYMBOL_GPL(cfg80211_wext_giwencode);
 786
 787 int cfg80211_wext_siwfreq(struct net_device *dev,
 788                           struct iw_request_info *info,
 789                           struct iw_freq *wextfreq, char *extra)
 790 {
 791         struct wireless_dev *wdev = dev->ieee80211_ptr;
 792         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
 793         int freq, err;
 794
 795         switch (wdev->iftype) {
 796         case NL80211_IFTYPE_STATION:
 797                 return cfg80211_mgd_wext_siwfreq(dev, info, wextfreq, extra);
 798         case NL80211_IFTYPE_ADHOC:
 799                 return cfg80211_ibss_wext_siwfreq(dev, info, wextfreq, extra);
 800         case NL80211_IFTYPE_MONITOR:
 801         case NL80211_IFTYPE_WDS:
 802         case NL80211_IFTYPE_MESH_POINT:
 803                 freq = cfg80211_wext_freq(wdev->wiphy, wextfreq);
 804                 if (freq < 0)
 805                         return freq;
 806                 if (freq == 0)
 807                         return -EINVAL;
 808                 mutex_lock(&rdev->devlist_mtx);
 809                 wdev_lock(wdev);
 810                 err = cfg80211_set_freq(rdev, wdev, freq, NL80211_CHAN_NO_HT);
 811                 wdev_unlock(wdev);
 812                 mutex_unlock(&rdev->devlist_mtx);
 813                 return err;
 814         default:
 815                 return -EOPNOTSUPP;
 816         }
 817 }
 818 EXPORT_SYMBOL_GPL(cfg80211_wext_siwfreq);
 819
 820 int cfg80211_wext_giwfreq(struct net_device *dev,
 821                           struct iw_request_info *info,
 822                           struct iw_freq *freq, char *extra)
 823 {
 824         struct wireless_dev *wdev = dev->ieee80211_ptr;
 825
 826         switch (wdev->iftype) {
 827         case NL80211_IFTYPE_STATION:
 828                 return cfg80211_mgd_wext_giwfreq(dev, info, freq, extra);
 829         case NL80211_IFTYPE_ADHOC:
 830                 return cfg80211_ibss_wext_giwfreq(dev, info, freq, extra);
 831         default:
 832                 if (!wdev->channel)
 833                         return -EINVAL;
 834                 freq->m = wdev->channel->center_freq;
 835                 freq->e = 6;
 836                 return 0;
 837         }
 838 }
 839 EXPORT_SYMBOL_GPL(cfg80211_wext_giwfreq);
 840
 841 int cfg80211_wext_siwtxpower(struct net_device *dev,
 842                              struct iw_request_info *info,
 843                              union iwreq_data *data, char *extra)
 844 {
 845         struct wireless_dev *wdev = dev->ieee80211_ptr;
 846         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
 847         enum nl80211_tx_power_setting type;
 848         int dbm = 0;
 849
 850         if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM)
 851                 return -EINVAL;
 852         if (data->txpower.flags & IW_TXPOW_RANGE)
 853                 return -EINVAL;
 854
 855         if (!rdev->ops->set_tx_power)
 856                 return -EOPNOTSUPP;
 857
 858         /* only change when not disabling */
 859         if (!data->txpower.disabled) {
 860                 rfkill_set_sw_state(rdev->rfkill, false);
 861
 862                 if (data->txpower.fixed) {
 863                         /*
 864                          * wext doesn't support negative values, see
 865                          * below where it's for automatic
 866                          */
 867                         if (data->txpower.value < 0)
 868                                 return -EINVAL;
 869                         dbm = data->txpower.value;
 870                         type = NL80211_TX_POWER_FIXED;
 871                         /* TODO: do regulatory check! */
 872                 } else {
 873                         /*
 874                          * Automatic power level setting, max being the value
 875                          * passed in from userland.
 876                          */
 877                         if (data->txpower.value < 0) {
 878                                 type = NL80211_TX_POWER_AUTOMATIC;
 879                         } else {
 880                                 dbm = data->txpower.value;
 881                                 type = NL80211_TX_POWER_LIMITED;
 882                         }
 883                 }
 884         } else {
 885                 rfkill_set_sw_state(rdev->rfkill, true);
 886                 schedule_work(&rdev->rfkill_sync);
 887                 return 0;
 888         }
 889
 890         return rdev->ops->set_tx_power(wdev->wiphy, type, DBM_TO_MBM(dbm));
 891 }
 892 EXPORT_SYMBOL_GPL(cfg80211_wext_siwtxpower);
 893
 894 int cfg80211_wext_giwtxpower(struct net_device *dev,
 895                              struct iw_request_info *info,
 896                              union iwreq_data *data, char *extra)
 897 {
 898         struct wireless_dev *wdev = dev->ieee80211_ptr;
 899         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
 900         int err, val;
 901
 902         if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM)
 903                 return -EINVAL;
 904         if (data->txpower.flags & IW_TXPOW_RANGE)
 905                 return -EINVAL;
 906
 907         if (!rdev->ops->get_tx_power)
 908                 return -EOPNOTSUPP;
 909
 910         err = rdev->ops->get_tx_power(wdev->wiphy, &val);
 911         if (err)
 912                 return err;
 913
 914         /* well... oh well */
 915         data->txpower.fixed = 1;
 916         data->txpower.disabled = rfkill_blocked(rdev->rfkill);
 917         data->txpower.value = val;
 918         data->txpower.flags = IW_TXPOW_DBM;
 919
 920         return 0;
 921 }
 922 EXPORT_SYMBOL_GPL(cfg80211_wext_giwtxpower);
 923
 924 static int cfg80211_set_auth_alg(struct wireless_dev *wdev,
 925                                  s32 auth_alg)
 926 {
 927         int nr_alg = 0;
 928
 929         if (!auth_alg)
 930                 return -EINVAL;
 931
 932         if (auth_alg & ~(IW_AUTH_ALG_OPEN_SYSTEM |
 933                          IW_AUTH_ALG_SHARED_KEY |
 934                          IW_AUTH_ALG_LEAP))
 935                 return -EINVAL;
 936
 937         if (auth_alg & IW_AUTH_ALG_OPEN_SYSTEM) {
 938                 nr_alg++;
 939                 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
 940         }
 941
 942         if (auth_alg & IW_AUTH_ALG_SHARED_KEY) {
 943                 nr_alg++;
 944                 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_SHARED_KEY;
 945         }
 946
 947         if (auth_alg & IW_AUTH_ALG_LEAP) {
 948                 nr_alg++;
 949                 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_NETWORK_EAP;
 950         }
 951
 952         if (nr_alg > 1)
 953                 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
 954
 955         return 0;
 956 }
 957
 958 static int cfg80211_set_wpa_version(struct wireless_dev *wdev, u32 wpa_versions)
 959 {
 960         if (wpa_versions & ~(IW_AUTH_WPA_VERSION_WPA |
 961                              IW_AUTH_WPA_VERSION_WPA2|
 962                              IW_AUTH_WPA_VERSION_DISABLED))
 963                 return -EINVAL;
 964
 965         if ((wpa_versions & IW_AUTH_WPA_VERSION_DISABLED) &&
 966             (wpa_versions & (IW_AUTH_WPA_VERSION_WPA|
 967                              IW_AUTH_WPA_VERSION_WPA2)))
 968                 return -EINVAL;
 969
 970         if (wpa_versions & IW_AUTH_WPA_VERSION_DISABLED)
 971                 wdev->wext.connect.crypto.wpa_versions &=
 972                         ~(NL80211_WPA_VERSION_1|NL80211_WPA_VERSION_2);
 973
 974         if (wpa_versions & IW_AUTH_WPA_VERSION_WPA)
 975                 wdev->wext.connect.crypto.wpa_versions |=
 976                         NL80211_WPA_VERSION_1;
 977
 978         if (wpa_versions & IW_AUTH_WPA_VERSION_WPA2)
 979                 wdev->wext.connect.crypto.wpa_versions |=
 980                         NL80211_WPA_VERSION_2;
 981
 982         return 0;
 983 }
 984
 985 static int cfg80211_set_cipher_group(struct wireless_dev *wdev, u32 cipher)
 986 {
 987         if (cipher & IW_AUTH_CIPHER_WEP40)
 988                 wdev->wext.connect.crypto.cipher_group =
 989                         WLAN_CIPHER_SUITE_WEP40;
 990         else if (cipher & IW_AUTH_CIPHER_WEP104)
 991                 wdev->wext.connect.crypto.cipher_group =
 992                         WLAN_CIPHER_SUITE_WEP104;
 993         else if (cipher & IW_AUTH_CIPHER_TKIP)
 994                 wdev->wext.connect.crypto.cipher_group =
 995                         WLAN_CIPHER_SUITE_TKIP;
 996         else if (cipher & IW_AUTH_CIPHER_CCMP)
 997                 wdev->wext.connect.crypto.cipher_group =
 998                         WLAN_CIPHER_SUITE_CCMP;
 999         else if (cipher & IW_AUTH_CIPHER_AES_CMAC)
1000                 wdev->wext.connect.crypto.cipher_group =
1001                         WLAN_CIPHER_SUITE_AES_CMAC;
1002         else if (cipher & IW_AUTH_CIPHER_NONE)
1003                 wdev->wext.connect.crypto.cipher_group = 0;
1004         else
1005                 return -EINVAL;
1006
1007         return 0;
1008 }
1009
1010 static int cfg80211_set_cipher_pairwise(struct wireless_dev *wdev, u32 cipher)
1011 {
1012         int nr_ciphers = 0;
1013         u32 *ciphers_pairwise = wdev->wext.connect.crypto.ciphers_pairwise;
1014
1015         if (cipher & IW_AUTH_CIPHER_WEP40) {
1016                 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_WEP40;
1017                 nr_ciphers++;
1018         }
1019
1020         if (cipher & IW_AUTH_CIPHER_WEP104) {
1021                 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_WEP104;
1022                 nr_ciphers++;
1023         }
1024
1025         if (cipher & IW_AUTH_CIPHER_TKIP) {
1026                 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_TKIP;
1027                 nr_ciphers++;
1028         }
1029
1030         if (cipher & IW_AUTH_CIPHER_CCMP) {
1031                 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_CCMP;
1032                 nr_ciphers++;
1033         }
1034
1035         if (cipher & IW_AUTH_CIPHER_AES_CMAC) {
1036                 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_AES_CMAC;
1037                 nr_ciphers++;
1038         }
1039
1040         BUILD_BUG_ON(NL80211_MAX_NR_CIPHER_SUITES < 5);
1041
1042         wdev->wext.connect.crypto.n_ciphers_pairwise = nr_ciphers;
1043
1044         return 0;
1045 }
1046
1047
1048 static int cfg80211_set_key_mgt(struct wireless_dev *wdev, u32 key_mgt)
1049 {
1050         int nr_akm_suites = 0;
1051
1052         if (key_mgt & ~(IW_AUTH_KEY_MGMT_802_1X |
1053                         IW_AUTH_KEY_MGMT_PSK))
1054                 return -EINVAL;
1055
1056         if (key_mgt & IW_AUTH_KEY_MGMT_802_1X) {
1057                 wdev->wext.connect.crypto.akm_suites[nr_akm_suites] =
1058                         WLAN_AKM_SUITE_8021X;
1059                 nr_akm_suites++;
1060         }
1061
1062         if (key_mgt & IW_AUTH_KEY_MGMT_PSK) {
1063                 wdev->wext.connect.crypto.akm_suites[nr_akm_suites] =
1064                         WLAN_AKM_SUITE_PSK;
1065                 nr_akm_suites++;
1066         }
1067
1068         wdev->wext.connect.crypto.n_akm_suites = nr_akm_suites;
1069
1070         return 0;
1071 }
1072
1073 int cfg80211_wext_siwauth(struct net_device *dev,
1074                           struct iw_request_info *info,
1075                           struct iw_param *data, char *extra)
1076 {
1077         struct wireless_dev *wdev = dev->ieee80211_ptr;
1078
1079         if (wdev->iftype != NL80211_IFTYPE_STATION)
1080                 return -EOPNOTSUPP;
1081
1082         switch (data->flags & IW_AUTH_INDEX) {
1083         case IW_AUTH_PRIVACY_INVOKED:
1084                 wdev->wext.connect.privacy = data->value;
1085                 return 0;
1086         case IW_AUTH_WPA_VERSION:
1087                 return cfg80211_set_wpa_version(wdev, data->value);
1088         case IW_AUTH_CIPHER_GROUP:
1089                 return cfg80211_set_cipher_group(wdev, data->value);
1090         case IW_AUTH_KEY_MGMT:
1091                 return cfg80211_set_key_mgt(wdev, data->value);
1092         case IW_AUTH_CIPHER_PAIRWISE:
1093                 return cfg80211_set_cipher_pairwise(wdev, data->value);
1094         case IW_AUTH_80211_AUTH_ALG:
1095                 return cfg80211_set_auth_alg(wdev, data->value);
1096         case IW_AUTH_WPA_ENABLED:
1097         case IW_AUTH_RX_UNENCRYPTED_EAPOL:
1098         case IW_AUTH_DROP_UNENCRYPTED:
1099         case IW_AUTH_MFP:
1100                 return 0;
1101         default:
1102                 return -EOPNOTSUPP;
1103         }
1104 }
1105 EXPORT_SYMBOL_GPL(cfg80211_wext_siwauth);
1106
1107 int cfg80211_wext_giwauth(struct net_device *dev,
1108                           struct iw_request_info *info,
1109                           struct iw_param *data, char *extra)
1110 {
1111         /* XXX: what do we need? */
1112
1113         return -EOPNOTSUPP;
1114 }
1115 EXPORT_SYMBOL_GPL(cfg80211_wext_giwauth);
1116
1117 int cfg80211_wext_siwpower(struct net_device *dev,
1118                            struct iw_request_info *info,
1119                            struct iw_param *wrq, char *extra)
1120 {
1121         struct wireless_dev *wdev = dev->ieee80211_ptr;
1122         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1123         bool ps = wdev->ps;
1124         int timeout = wdev->ps_timeout;
1125         int err;
1126
1127         if (wdev->iftype != NL80211_IFTYPE_STATION)
1128                 return -EINVAL;
1129
1130         if (!rdev->ops->set_power_mgmt)
1131                 return -EOPNOTSUPP;
1132
1133         if (wrq->disabled) {
1134                 ps = false;
1135         } else {
1136                 switch (wrq->flags & IW_POWER_MODE) {
1137                 case IW_POWER_ON:       /* If not specified */
1138                 case IW_POWER_MODE:     /* If set all mask */
1139                 case IW_POWER_ALL_R:    /* If explicitely state all */
1140                         ps = true;
1141                         break;
1142                 default:                /* Otherwise we ignore */
1143                         return -EINVAL;
1144                 }
1145
1146                 if (wrq->flags & ~(IW_POWER_MODE | IW_POWER_TIMEOUT))
1147                         return -EINVAL;
1148
1149                 if (wrq->flags & IW_POWER_TIMEOUT)
1150                         timeout = wrq->value / 1000;
1151         }
1152
1153         err = rdev->ops->set_power_mgmt(wdev->wiphy, dev, ps, timeout);
1154         if (err)
1155                 return err;
1156
1157         wdev->ps = ps;
1158         wdev->ps_timeout = timeout;
1159
1160         return 0;
1161
1162 }
1163 EXPORT_SYMBOL_GPL(cfg80211_wext_siwpower);
1164
1165 int cfg80211_wext_giwpower(struct net_device *dev,
1166                            struct iw_request_info *info,
1167                            struct iw_param *wrq, char *extra)
1168 {
1169         struct wireless_dev *wdev = dev->ieee80211_ptr;
1170
1171         wrq->disabled = !wdev->ps;
1172
1173         return 0;
1174 }
1175 EXPORT_SYMBOL_GPL(cfg80211_wext_giwpower);
1176
1177 static int cfg80211_wds_wext_siwap(struct net_device *dev,
1178                                    struct iw_request_info *info,
1179                                    struct sockaddr *addr, char *extra)
1180 {
1181         struct wireless_dev *wdev = dev->ieee80211_ptr;
1182         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1183         int err;
1184
1185         if (WARN_ON(wdev->iftype != NL80211_IFTYPE_WDS))
1186                 return -EINVAL;
1187
1188         if (addr->sa_family != ARPHRD_ETHER)
1189                 return -EINVAL;
1190
1191         if (netif_running(dev))
1192                 return -EBUSY;
1193
1194         if (!rdev->ops->set_wds_peer)
1195                 return -EOPNOTSUPP;
1196
1197         err = rdev->ops->set_wds_peer(wdev->wiphy, dev, (u8 *) &addr->sa_data);
1198         if (err)
1199                 return err;
1200
1201         memcpy(&wdev->wext.bssid, (u8 *) &addr->sa_data, ETH_ALEN);
1202
1203         return 0;
1204 }
1205
1206 static int cfg80211_wds_wext_giwap(struct net_device *dev,
1207                                    struct iw_request_info *info,
1208                                    struct sockaddr *addr, char *extra)
1209 {
1210         struct wireless_dev *wdev = dev->ieee80211_ptr;
1211
1212         if (WARN_ON(wdev->iftype != NL80211_IFTYPE_WDS))
1213                 return -EINVAL;
1214
1215         addr->sa_family = ARPHRD_ETHER;
1216         memcpy(&addr->sa_data, wdev->wext.bssid, ETH_ALEN);
1217
1218         return 0;
1219 }
1220
1221 int cfg80211_wext_siwrate(struct net_device *dev,
1222                           struct iw_request_info *info,
1223                           struct iw_param *rate, char *extra)
1224 {
1225         struct wireless_dev *wdev = dev->ieee80211_ptr;
1226         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1227         struct cfg80211_bitrate_mask mask;
1228         u32 fixed, maxrate;
1229         struct ieee80211_supported_band *sband;
1230         int band, ridx;
1231         bool match = false;
1232
1233         if (!rdev->ops->set_bitrate_mask)
1234                 return -EOPNOTSUPP;
1235
1236         memset(&mask, 0, sizeof(mask));
1237         fixed = 0;
1238         maxrate = (u32)-1;
1239
1240         if (rate->value < 0) {
1241                 /* nothing */
1242         } else if (rate->fixed) {
1243                 fixed = rate->value / 100000;
1244         } else {
1245                 maxrate = rate->value / 100000;
1246         }
1247
1248         for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
1249                 sband = wdev->wiphy->bands[band];
1250                 if (sband == NULL)
1251                         continue;
1252                 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
1253                         struct ieee80211_rate *srate = &sband->bitrates[ridx];
1254                         if (fixed == srate->bitrate) {
1255                                 mask.control[band].legacy = 1 << ridx;
1256                                 match = true;
1257                                 break;
1258                         }
1259                         if (srate->bitrate <= maxrate) {
1260                                 mask.control[band].legacy |= 1 << ridx;
1261                                 match = true;
1262                         }
1263                 }
1264         }
1265
1266         if (!match)
1267                 return -EINVAL;
1268
1269         return rdev->ops->set_bitrate_mask(wdev->wiphy, dev, NULL, &mask);
1270 }
1271 EXPORT_SYMBOL_GPL(cfg80211_wext_siwrate);
1272
1273 int cfg80211_wext_giwrate(struct net_device *dev,
1274                           struct iw_request_info *info,
1275                           struct iw_param *rate, char *extra)
1276 {
1277         struct wireless_dev *wdev = dev->ieee80211_ptr;
1278         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1279         /* we are under RTNL - globally locked - so can use a static struct */
1280         static struct station_info sinfo;
1281         u8 addr[ETH_ALEN];
1282         int err;
1283
1284         if (wdev->iftype != NL80211_IFTYPE_STATION)
1285                 return -EOPNOTSUPP;
1286
1287         if (!rdev->ops->get_station)
1288                 return -EOPNOTSUPP;
1289
1290         err = 0;
1291         wdev_lock(wdev);
1292         if (wdev->current_bss)
1293                 memcpy(addr, wdev->current_bss->pub.bssid, ETH_ALEN);
1294         else
1295                 err = -EOPNOTSUPP;
1296         wdev_unlock(wdev);
1297         if (err)
1298                 return err;
1299
1300         err = rdev->ops->get_station(&rdev->wiphy, dev, addr, &sinfo);
1301         if (err)
1302                 return err;
1303
1304         if (!(sinfo.filled & STATION_INFO_TX_BITRATE))
1305                 return -EOPNOTSUPP;
1306
1307         rate->value = 100000 * cfg80211_calculate_bitrate(&sinfo.txrate);
1308
1309         return 0;
1310 }
1311 EXPORT_SYMBOL_GPL(cfg80211_wext_giwrate);
1312
1313 /* Get wireless statistics.  Called by /proc/net/wireless and by SIOCGIWSTATS */
1314 struct iw_statistics *cfg80211_wireless_stats(struct net_device *dev)
1315 {
1316         struct wireless_dev *wdev = dev->ieee80211_ptr;
1317         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1318         /* we are under RTNL - globally locked - so can use static structs */
1319         static struct iw_statistics wstats;
1320         static struct station_info sinfo;
1321         u8 bssid[ETH_ALEN];
1322
1323         if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION)
1324                 return NULL;
1325
1326         if (!rdev->ops->get_station)
1327                 return NULL;
1328
1329         /* Grab BSSID of current BSS, if any */
1330         wdev_lock(wdev);
1331         if (!wdev->current_bss) {
1332                 wdev_unlock(wdev);
1333                 return NULL;
1334         }
1335         memcpy(bssid, wdev->current_bss->pub.bssid, ETH_ALEN);
1336         wdev_unlock(wdev);
1337
1338         if (rdev->ops->get_station(&rdev->wiphy, dev, bssid, &sinfo))
1339                 return NULL;
1340
1341         memset(&wstats, 0, sizeof(wstats));
1342
1343         switch (rdev->wiphy.signal_type) {
1344         case CFG80211_SIGNAL_TYPE_MBM:
1345                 if (sinfo.filled & STATION_INFO_SIGNAL) {
1346                         int sig = sinfo.signal;
1347                         wstats.qual.updated |= IW_QUAL_LEVEL_UPDATED;
1348                         wstats.qual.updated |= IW_QUAL_QUAL_UPDATED;
1349                         wstats.qual.updated |= IW_QUAL_DBM;
1350                         wstats.qual.level = sig;
1351                         if (sig < -110)
1352                                 sig = -110;
1353                         else if (sig > -40)
1354                                 sig = -40;
1355                         wstats.qual.qual = sig + 110;
1356                         break;
1357                 }
1358         case CFG80211_SIGNAL_TYPE_UNSPEC:
1359                 if (sinfo.filled & STATION_INFO_SIGNAL) {
1360                         wstats.qual.updated |= IW_QUAL_LEVEL_UPDATED;
1361                         wstats.qual.updated |= IW_QUAL_QUAL_UPDATED;
1362                         wstats.qual.level = sinfo.signal;
1363                         wstats.qual.qual = sinfo.signal;
1364                         break;
1365                 }
1366         default:
1367                 wstats.qual.updated |= IW_QUAL_LEVEL_INVALID;
1368                 wstats.qual.updated |= IW_QUAL_QUAL_INVALID;
1369         }
1370
1371         wstats.qual.updated |= IW_QUAL_NOISE_INVALID;
1372         if (sinfo.filled & STATION_INFO_RX_DROP_MISC)
1373                 wstats.discard.misc = sinfo.rx_dropped_misc;
1374         if (sinfo.filled & STATION_INFO_TX_FAILED)
1375                 wstats.discard.retries = sinfo.tx_failed;
1376
1377         return &wstats;
1378 }
1379 EXPORT_SYMBOL_GPL(cfg80211_wireless_stats);
1380
1381 int cfg80211_wext_siwap(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_siwap(dev, info, ap_addr, extra);
1390         case NL80211_IFTYPE_STATION:
1391                 return cfg80211_mgd_wext_siwap(dev, info, ap_addr, extra);
1392         case NL80211_IFTYPE_WDS:
1393                 return cfg80211_wds_wext_siwap(dev, info, ap_addr, extra);
1394         default:
1395                 return -EOPNOTSUPP;
1396         }
1397 }
1398 EXPORT_SYMBOL_GPL(cfg80211_wext_siwap);
1399
1400 int cfg80211_wext_giwap(struct net_device *dev,
1401                         struct iw_request_info *info,
1402                         struct sockaddr *ap_addr, char *extra)
1403 {
1404         struct wireless_dev *wdev = dev->ieee80211_ptr;
1405
1406         switch (wdev->iftype) {
1407         case NL80211_IFTYPE_ADHOC:
1408                 return cfg80211_ibss_wext_giwap(dev, info, ap_addr, extra);
1409         case NL80211_IFTYPE_STATION:
1410                 return cfg80211_mgd_wext_giwap(dev, info, ap_addr, extra);
1411         case NL80211_IFTYPE_WDS:
1412                 return cfg80211_wds_wext_giwap(dev, info, ap_addr, extra);
1413         default:
1414                 return -EOPNOTSUPP;
1415         }
1416 }
1417 EXPORT_SYMBOL_GPL(cfg80211_wext_giwap);
1418
1419 int cfg80211_wext_siwessid(struct net_device *dev,
1420                            struct iw_request_info *info,
1421                            struct iw_point *data, char *ssid)
1422 {
1423         struct wireless_dev *wdev = dev->ieee80211_ptr;
1424
1425         switch (wdev->iftype) {
1426         case NL80211_IFTYPE_ADHOC:
1427                 return cfg80211_ibss_wext_siwessid(dev, info, data, ssid);
1428         case NL80211_IFTYPE_STATION:
1429                 return cfg80211_mgd_wext_siwessid(dev, info, data, ssid);
1430         default:
1431                 return -EOPNOTSUPP;
1432         }
1433 }
1434 EXPORT_SYMBOL_GPL(cfg80211_wext_siwessid);
1435
1436 int cfg80211_wext_giwessid(struct net_device *dev,
1437                            struct iw_request_info *info,
1438                            struct iw_point *data, char *ssid)
1439 {
1440         struct wireless_dev *wdev = dev->ieee80211_ptr;
1441
1442         data->flags = 0;
1443         data->length = 0;
1444
1445         switch (wdev->iftype) {
1446         case NL80211_IFTYPE_ADHOC:
1447                 return cfg80211_ibss_wext_giwessid(dev, info, data, ssid);
1448         case NL80211_IFTYPE_STATION:
1449                 return cfg80211_mgd_wext_giwessid(dev, info, data, ssid);
1450         default:
1451                 return -EOPNOTSUPP;
1452         }
1453 }
1454 EXPORT_SYMBOL_GPL(cfg80211_wext_giwessid);
1455
1456 int cfg80211_wext_siwpmksa(struct net_device *dev,
1457                            struct iw_request_info *info,
1458                            struct iw_point *data, char *extra)
1459 {
1460         struct wireless_dev *wdev = dev->ieee80211_ptr;
1461         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1462         struct cfg80211_pmksa cfg_pmksa;
1463         struct iw_pmksa *pmksa = (struct iw_pmksa *)extra;
1464
1465         memset(&cfg_pmksa, 0, sizeof(struct cfg80211_pmksa));
1466
1467         if (wdev->iftype != NL80211_IFTYPE_STATION)
1468                 return -EINVAL;
1469
1470         cfg_pmksa.bssid = pmksa->bssid.sa_data;
1471         cfg_pmksa.pmkid = pmksa->pmkid;
1472
1473         switch (pmksa->cmd) {
1474         case IW_PMKSA_ADD:
1475                 if (!rdev->ops->set_pmksa)
1476                         return -EOPNOTSUPP;
1477
1478                 return rdev->ops->set_pmksa(&rdev->wiphy, dev, &cfg_pmksa);
1479
1480         case IW_PMKSA_REMOVE:
1481                 if (!rdev->ops->del_pmksa)
1482                         return -EOPNOTSUPP;
1483
1484                 return rdev->ops->del_pmksa(&rdev->wiphy, dev, &cfg_pmksa);
1485
1486         case IW_PMKSA_FLUSH:
1487                 if (!rdev->ops->flush_pmksa)
1488                         return -EOPNOTSUPP;
1489
1490                 return rdev->ops->flush_pmksa(&rdev->wiphy, dev);
1491
1492         default:
1493                 return -EOPNOTSUPP;
1494         }
1495 }
1496 EXPORT_SYMBOL_GPL(cfg80211_wext_siwpmksa);
1497
1498 static const iw_handler cfg80211_handlers[] = {
1499         [IW_IOCTL_IDX(SIOCGIWNAME)]     = (iw_handler) cfg80211_wext_giwname,
1500         [IW_IOCTL_IDX(SIOCSIWFREQ)]     = (iw_handler) cfg80211_wext_siwfreq,
1501         [IW_IOCTL_IDX(SIOCGIWFREQ)]     = (iw_handler) cfg80211_wext_giwfreq,
1502         [IW_IOCTL_IDX(SIOCSIWMODE)]     = (iw_handler) cfg80211_wext_siwmode,
1503         [IW_IOCTL_IDX(SIOCGIWMODE)]     = (iw_handler) cfg80211_wext_giwmode,
1504         [IW_IOCTL_IDX(SIOCGIWRANGE)]    = (iw_handler) cfg80211_wext_giwrange,
1505         [IW_IOCTL_IDX(SIOCSIWAP)]       = (iw_handler) cfg80211_wext_siwap,
1506         [IW_IOCTL_IDX(SIOCGIWAP)]       = (iw_handler) cfg80211_wext_giwap,
1507         [IW_IOCTL_IDX(SIOCSIWMLME)]     = (iw_handler) cfg80211_wext_siwmlme,
1508         [IW_IOCTL_IDX(SIOCSIWSCAN)]     = (iw_handler) cfg80211_wext_siwscan,
1509         [IW_IOCTL_IDX(SIOCGIWSCAN)]     = (iw_handler) cfg80211_wext_giwscan,
1510         [IW_IOCTL_IDX(SIOCSIWESSID)]    = (iw_handler) cfg80211_wext_siwessid,
1511         [IW_IOCTL_IDX(SIOCGIWESSID)]    = (iw_handler) cfg80211_wext_giwessid,
1512         [IW_IOCTL_IDX(SIOCSIWRATE)]     = (iw_handler) cfg80211_wext_siwrate,
1513         [IW_IOCTL_IDX(SIOCGIWRATE)]     = (iw_handler) cfg80211_wext_giwrate,
1514         [IW_IOCTL_IDX(SIOCSIWRTS)]      = (iw_handler) cfg80211_wext_siwrts,
1515         [IW_IOCTL_IDX(SIOCGIWRTS)]      = (iw_handler) cfg80211_wext_giwrts,
1516         [IW_IOCTL_IDX(SIOCSIWFRAG)]     = (iw_handler) cfg80211_wext_siwfrag,
1517         [IW_IOCTL_IDX(SIOCGIWFRAG)]     = (iw_handler) cfg80211_wext_giwfrag,
1518         [IW_IOCTL_IDX(SIOCSIWTXPOW)]    = (iw_handler) cfg80211_wext_siwtxpower,
1519         [IW_IOCTL_IDX(SIOCGIWTXPOW)]    = (iw_handler) cfg80211_wext_giwtxpower,
1520         [IW_IOCTL_IDX(SIOCSIWRETRY)]    = (iw_handler) cfg80211_wext_siwretry,
1521         [IW_IOCTL_IDX(SIOCGIWRETRY)]    = (iw_handler) cfg80211_wext_giwretry,
1522         [IW_IOCTL_IDX(SIOCSIWENCODE)]   = (iw_handler) cfg80211_wext_siwencode,
1523         [IW_IOCTL_IDX(SIOCGIWENCODE)]   = (iw_handler) cfg80211_wext_giwencode,
1524         [IW_IOCTL_IDX(SIOCSIWPOWER)]    = (iw_handler) cfg80211_wext_siwpower,
1525         [IW_IOCTL_IDX(SIOCGIWPOWER)]    = (iw_handler) cfg80211_wext_giwpower,
1526         [IW_IOCTL_IDX(SIOCSIWGENIE)]    = (iw_handler) cfg80211_wext_siwgenie,
1527         [IW_IOCTL_IDX(SIOCSIWAUTH)]     = (iw_handler) cfg80211_wext_siwauth,
1528         [IW_IOCTL_IDX(SIOCGIWAUTH)]     = (iw_handler) cfg80211_wext_giwauth,
1529         [IW_IOCTL_IDX(SIOCSIWENCODEEXT)]= (iw_handler) cfg80211_wext_siwencodeext,
1530         [IW_IOCTL_IDX(SIOCSIWPMKSA)]    = (iw_handler) cfg80211_wext_siwpmksa,
1531 };
1532
1533 const struct iw_handler_def cfg80211_wext_handler = {
1534         .num_standard           = ARRAY_SIZE(cfg80211_handlers),
1535         .standard               = cfg80211_handlers,
1536         .get_wireless_stats = cfg80211_wireless_stats,
1537 };