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 <[email protected]>
   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, bool pairwise,
 436                                      const u8 *addr, bool remove, bool tx_key,
 437                                      int idx, struct key_params *params)
 438 {
 439         struct wireless_dev *wdev = dev->ieee80211_ptr;
 440         int err, i;
 441         bool rejoin = false;
 442
 443         if (pairwise && !addr)
 444                 return -EINVAL;
 445
 446         if (!wdev->wext.keys) {
 447                 wdev->wext.keys = kzalloc(sizeof(*wdev->wext.keys),
 448                                               GFP_KERNEL);
 449                 if (!wdev->wext.keys)
 450                         return -ENOMEM;
 451                 for (i = 0; i < 6; i++)
 452                         wdev->wext.keys->params[i].key =
 453                                 wdev->wext.keys->data[i];
 454         }
 455
 456         if (wdev->iftype != NL80211_IFTYPE_ADHOC &&
 457             wdev->iftype != NL80211_IFTYPE_STATION)
 458                 return -EOPNOTSUPP;
 459
 460         if (params->cipher == WLAN_CIPHER_SUITE_AES_CMAC) {
 461                 if (!wdev->current_bss)
 462                         return -ENOLINK;
 463
 464                 if (!rdev->ops->set_default_mgmt_key)
 465                         return -EOPNOTSUPP;
 466
 467                 if (idx < 4 || idx > 5)
 468                         return -EINVAL;
 469         } else if (idx < 0 || idx > 3)
 470                 return -EINVAL;
 471
 472         if (remove) {
 473                 err = 0;
 474                 if (wdev->current_bss) {
 475                         /*
 476                          * If removing the current TX key, we will need to
 477                          * join a new IBSS without the privacy bit clear.
 478                          */
 479                         if (idx == wdev->wext.default_key &&
 480                             wdev->iftype == NL80211_IFTYPE_ADHOC) {
 481                                 __cfg80211_leave_ibss(rdev, wdev->netdev, true);
 482                                 rejoin = true;
 483                         }
 484
 485                         if (!pairwise && addr &&
 486                             !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
 487                                 err = -ENOENT;
 488                         else
 489                                 err = rdev->ops->del_key(&rdev->wiphy, dev, idx,
 490                                                          pairwise, addr);
 491                 }
 492                 wdev->wext.connect.privacy = false;
 493                 /*
 494                  * Applications using wireless extensions expect to be
 495                  * able to delete keys that don't exist, so allow that.
 496                  */
 497                 if (err == -ENOENT)
 498                         err = 0;
 499                 if (!err) {
 500                         if (!addr) {
 501                                 wdev->wext.keys->params[idx].key_len = 0;
 502                                 wdev->wext.keys->params[idx].cipher = 0;
 503                         }
 504                         if (idx == wdev->wext.default_key)
 505                                 wdev->wext.default_key = -1;
 506                         else if (idx == wdev->wext.default_mgmt_key)
 507                                 wdev->wext.default_mgmt_key = -1;
 508                 }
 509
 510                 if (!err && rejoin)
 511                         err = cfg80211_ibss_wext_join(rdev, wdev);
 512
 513                 return err;
 514         }
 515
 516         if (addr)
 517                 tx_key = false;
 518
 519         if (cfg80211_validate_key_settings(rdev, params, idx, pairwise, addr))
 520                 return -EINVAL;
 521
 522         err = 0;
 523         if (wdev->current_bss)
 524                 err = rdev->ops->add_key(&rdev->wiphy, dev, idx,
 525                                          pairwise, addr, params);
 526         if (err)
 527                 return err;
 528
 529         if (!addr) {
 530                 wdev->wext.keys->params[idx] = *params;
 531                 memcpy(wdev->wext.keys->data[idx],
 532                         params->key, params->key_len);
 533                 wdev->wext.keys->params[idx].key =
 534                         wdev->wext.keys->data[idx];
 535         }
 536
 537         if ((params->cipher == WLAN_CIPHER_SUITE_WEP40 ||
 538              params->cipher == WLAN_CIPHER_SUITE_WEP104) &&
 539             (tx_key || (!addr && wdev->wext.default_key == -1))) {
 540                 if (wdev->current_bss) {
 541                         /*
 542                          * If we are getting a new TX key from not having
 543                          * had one before we need to join a new IBSS with
 544                          * the privacy bit set.
 545                          */
 546                         if (wdev->iftype == NL80211_IFTYPE_ADHOC &&
 547                             wdev->wext.default_key == -1) {
 548                                 __cfg80211_leave_ibss(rdev, wdev->netdev, true);
 549                                 rejoin = true;
 550                         }
 551                         err = rdev->ops->set_default_key(&rdev->wiphy,
 552                                                          dev, idx);
 553                 }
 554                 if (!err) {
 555                         wdev->wext.default_key = idx;
 556                         if (rejoin)
 557                                 err = cfg80211_ibss_wext_join(rdev, wdev);
 558                 }
 559                 return err;
 560         }
 561
 562         if (params->cipher == WLAN_CIPHER_SUITE_AES_CMAC &&
 563             (tx_key || (!addr && wdev->wext.default_mgmt_key == -1))) {
 564                 if (wdev->current_bss)
 565                         err = rdev->ops->set_default_mgmt_key(&rdev->wiphy,
 566                                                               dev, idx);
 567                 if (!err)
 568                         wdev->wext.default_mgmt_key = idx;
 569                 return err;
 570         }
 571
 572         return 0;
 573 }
 574
 575 static int cfg80211_set_encryption(struct cfg80211_registered_device *rdev,
 576                                    struct net_device *dev, bool pairwise,
 577                                    const u8 *addr, bool remove, bool tx_key,
 578                                    int idx, struct key_params *params)
 579 {
 580         int err;
 581
 582         /* devlist mutex needed for possible IBSS re-join */
 583         mutex_lock(&rdev->devlist_mtx);
 584         wdev_lock(dev->ieee80211_ptr);
 585         err = __cfg80211_set_encryption(rdev, dev, pairwise, addr,
 586                                         remove, tx_key, idx, params);
 587         wdev_unlock(dev->ieee80211_ptr);
 588         mutex_unlock(&rdev->devlist_mtx);
 589
 590         return err;
 591 }
 592
 593 int cfg80211_wext_siwencode(struct net_device *dev,
 594                             struct iw_request_info *info,
 595                             struct iw_point *erq, char *keybuf)
 596 {
 597         struct wireless_dev *wdev = dev->ieee80211_ptr;
 598         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
 599         int idx, err;
 600         bool remove = false;
 601         struct key_params params;
 602
 603         if (wdev->iftype != NL80211_IFTYPE_STATION &&
 604             wdev->iftype != NL80211_IFTYPE_ADHOC)
 605                 return -EOPNOTSUPP;
 606
 607         /* no use -- only MFP (set_default_mgmt_key) is optional */
 608         if (!rdev->ops->del_key ||
 609             !rdev->ops->add_key ||
 610             !rdev->ops->set_default_key)
 611                 return -EOPNOTSUPP;
 612
 613         idx = erq->flags & IW_ENCODE_INDEX;
 614         if (idx == 0) {
 615                 idx = wdev->wext.default_key;
 616                 if (idx < 0)
 617                         idx = 0;
 618         } else if (idx < 1 || idx > 4)
 619                 return -EINVAL;
 620         else
 621                 idx--;
 622
 623         if (erq->flags & IW_ENCODE_DISABLED)
 624                 remove = true;
 625         else if (erq->length == 0) {
 626                 /* No key data - just set the default TX key index */
 627                 err = 0;
 628                 wdev_lock(wdev);
 629                 if (wdev->current_bss)
 630                         err = rdev->ops->set_default_key(&rdev->wiphy,
 631                                                          dev, idx);
 632                 if (!err)
 633                         wdev->wext.default_key = idx;
 634                 wdev_unlock(wdev);
 635                 return err;
 636         }
 637
 638         memset(&params, 0, sizeof(params));
 639         params.key = keybuf;
 640         params.key_len = erq->length;
 641         if (erq->length == 5)
 642                 params.cipher = WLAN_CIPHER_SUITE_WEP40;
 643         else if (erq->length == 13)
 644                 params.cipher = WLAN_CIPHER_SUITE_WEP104;
 645         else if (!remove)
 646                 return -EINVAL;
 647
 648         return cfg80211_set_encryption(rdev, dev, false, NULL, remove,
 649                                        wdev->wext.default_key == -1,
 650                                        idx, &params);
 651 }
 652 EXPORT_SYMBOL_GPL(cfg80211_wext_siwencode);
 653
 654 int cfg80211_wext_siwencodeext(struct net_device *dev,
 655                                struct iw_request_info *info,
 656                                struct iw_point *erq, char *extra)
 657 {
 658         struct wireless_dev *wdev = dev->ieee80211_ptr;
 659         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
 660         struct iw_encode_ext *ext = (struct iw_encode_ext *) extra;
 661         const u8 *addr;
 662         int idx;
 663         bool remove = false;
 664         struct key_params params;
 665         u32 cipher;
 666
 667         if (wdev->iftype != NL80211_IFTYPE_STATION &&
 668             wdev->iftype != NL80211_IFTYPE_ADHOC)
 669                 return -EOPNOTSUPP;
 670
 671         /* no use -- only MFP (set_default_mgmt_key) is optional */
 672         if (!rdev->ops->del_key ||
 673             !rdev->ops->add_key ||
 674             !rdev->ops->set_default_key)
 675                 return -EOPNOTSUPP;
 676
 677         switch (ext->alg) {
 678         case IW_ENCODE_ALG_NONE:
 679                 remove = true;
 680                 cipher = 0;
 681                 break;
 682         case IW_ENCODE_ALG_WEP:
 683                 if (ext->key_len == 5)
 684                         cipher = WLAN_CIPHER_SUITE_WEP40;
 685                 else if (ext->key_len == 13)
 686                         cipher = WLAN_CIPHER_SUITE_WEP104;
 687                 else
 688                         return -EINVAL;
 689                 break;
 690         case IW_ENCODE_ALG_TKIP:
 691                 cipher = WLAN_CIPHER_SUITE_TKIP;
 692                 break;
 693         case IW_ENCODE_ALG_CCMP:
 694                 cipher = WLAN_CIPHER_SUITE_CCMP;
 695                 break;
 696         case IW_ENCODE_ALG_AES_CMAC:
 697                 cipher = WLAN_CIPHER_SUITE_AES_CMAC;
 698                 break;
 699         default:
 700                 return -EOPNOTSUPP;
 701         }
 702
 703         if (erq->flags & IW_ENCODE_DISABLED)
 704                 remove = true;
 705
 706         idx = erq->flags & IW_ENCODE_INDEX;
 707         if (cipher == WLAN_CIPHER_SUITE_AES_CMAC) {
 708                 if (idx < 4 || idx > 5) {
 709                         idx = wdev->wext.default_mgmt_key;
 710                         if (idx < 0)
 711                                 return -EINVAL;
 712                 } else
 713                         idx--;
 714         } else {
 715                 if (idx < 1 || idx > 4) {
 716                         idx = wdev->wext.default_key;
 717                         if (idx < 0)
 718                                 return -EINVAL;
 719                 } else
 720                         idx--;
 721         }
 722
 723         addr = ext->addr.sa_data;
 724         if (is_broadcast_ether_addr(addr))
 725                 addr = NULL;
 726
 727         memset(&params, 0, sizeof(params));
 728         params.key = ext->key;
 729         params.key_len = ext->key_len;
 730         params.cipher = cipher;
 731
 732         if (ext->ext_flags & IW_ENCODE_EXT_RX_SEQ_VALID) {
 733                 params.seq = ext->rx_seq;
 734                 params.seq_len = 6;
 735         }
 736
 737         return cfg80211_set_encryption(
 738                         rdev, dev,
 739                         !(ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY),
 740                         addr, remove,
 741                         ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY,
 742                         idx, &params);
 743 }
 744 EXPORT_SYMBOL_GPL(cfg80211_wext_siwencodeext);
 745
 746 int cfg80211_wext_giwencode(struct net_device *dev,
 747                             struct iw_request_info *info,
 748                             struct iw_point *erq, char *keybuf)
 749 {
 750         struct wireless_dev *wdev = dev->ieee80211_ptr;
 751         int idx;
 752
 753         if (wdev->iftype != NL80211_IFTYPE_STATION &&
 754             wdev->iftype != NL80211_IFTYPE_ADHOC)
 755                 return -EOPNOTSUPP;
 756
 757         idx = erq->flags & IW_ENCODE_INDEX;
 758         if (idx == 0) {
 759                 idx = wdev->wext.default_key;
 760                 if (idx < 0)
 761                         idx = 0;
 762         } else if (idx < 1 || idx > 4)
 763                 return -EINVAL;
 764         else
 765                 idx--;
 766
 767         erq->flags = idx + 1;
 768
 769         if (!wdev->wext.keys || !wdev->wext.keys->params[idx].cipher) {
 770                 erq->flags |= IW_ENCODE_DISABLED;
 771                 erq->length = 0;
 772                 return 0;
 773         }
 774
 775         erq->length = min_t(size_t, erq->length,
 776                             wdev->wext.keys->params[idx].key_len);
 777         memcpy(keybuf, wdev->wext.keys->params[idx].key, erq->length);
 778         erq->flags |= IW_ENCODE_ENABLED;
 779
 780         return 0;
 781 }
 782 EXPORT_SYMBOL_GPL(cfg80211_wext_giwencode);
 783
 784 int cfg80211_wext_siwfreq(struct net_device *dev,
 785                           struct iw_request_info *info,
 786                           struct iw_freq *wextfreq, char *extra)
 787 {
 788         struct wireless_dev *wdev = dev->ieee80211_ptr;
 789         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
 790         int freq, err;
 791
 792         switch (wdev->iftype) {
 793         case NL80211_IFTYPE_STATION:
 794                 return cfg80211_mgd_wext_siwfreq(dev, info, wextfreq, extra);
 795         case NL80211_IFTYPE_ADHOC:
 796                 return cfg80211_ibss_wext_siwfreq(dev, info, wextfreq, extra);
 797         case NL80211_IFTYPE_MONITOR:
 798         case NL80211_IFTYPE_WDS:
 799         case NL80211_IFTYPE_MESH_POINT:
 800                 freq = cfg80211_wext_freq(wdev->wiphy, wextfreq);
 801                 if (freq < 0)
 802                         return freq;
 803                 if (freq == 0)
 804                         return -EINVAL;
 805                 wdev_lock(wdev);
 806                 mutex_lock(&rdev->devlist_mtx);
 807                 err = cfg80211_set_freq(rdev, wdev, freq, NL80211_CHAN_NO_HT);
 808                 mutex_unlock(&rdev->devlist_mtx);
 809                 wdev_unlock(wdev);
 810                 return err;
 811         default:
 812                 return -EOPNOTSUPP;
 813         }
 814 }
 815 EXPORT_SYMBOL_GPL(cfg80211_wext_siwfreq);
 816
 817 int cfg80211_wext_giwfreq(struct net_device *dev,
 818                           struct iw_request_info *info,
 819                           struct iw_freq *freq, char *extra)
 820 {
 821         struct wireless_dev *wdev = dev->ieee80211_ptr;
 822
 823         switch (wdev->iftype) {
 824         case NL80211_IFTYPE_STATION:
 825                 return cfg80211_mgd_wext_giwfreq(dev, info, freq, extra);
 826         case NL80211_IFTYPE_ADHOC:
 827                 return cfg80211_ibss_wext_giwfreq(dev, info, freq, extra);
 828         default:
 829                 if (!wdev->channel)
 830                         return -EINVAL;
 831                 freq->m = wdev->channel->center_freq;
 832                 freq->e = 6;
 833                 return 0;
 834         }
 835 }
 836 EXPORT_SYMBOL_GPL(cfg80211_wext_giwfreq);
 837
 838 int cfg80211_wext_siwtxpower(struct net_device *dev,
 839                              struct iw_request_info *info,
 840                              union iwreq_data *data, char *extra)
 841 {
 842         struct wireless_dev *wdev = dev->ieee80211_ptr;
 843         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
 844         enum nl80211_tx_power_setting type;
 845         int dbm = 0;
 846
 847         if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM)
 848                 return -EINVAL;
 849         if (data->txpower.flags & IW_TXPOW_RANGE)
 850                 return -EINVAL;
 851
 852         if (!rdev->ops->set_tx_power)
 853                 return -EOPNOTSUPP;
 854
 855         /* only change when not disabling */
 856         if (!data->txpower.disabled) {
 857                 rfkill_set_sw_state(rdev->rfkill, false);
 858
 859                 if (data->txpower.fixed) {
 860                         /*
 861                          * wext doesn't support negative values, see
 862                          * below where it's for automatic
 863                          */
 864                         if (data->txpower.value < 0)
 865                                 return -EINVAL;
 866                         dbm = data->txpower.value;
 867                         type = NL80211_TX_POWER_FIXED;
 868                         /* TODO: do regulatory check! */
 869                 } else {
 870                         /*
 871                          * Automatic power level setting, max being the value
 872                          * passed in from userland.
 873                          */
 874                         if (data->txpower.value < 0) {
 875                                 type = NL80211_TX_POWER_AUTOMATIC;
 876                         } else {
 877                                 dbm = data->txpower.value;
 878                                 type = NL80211_TX_POWER_LIMITED;
 879                         }
 880                 }
 881         } else {
 882                 rfkill_set_sw_state(rdev->rfkill, true);
 883                 schedule_work(&rdev->rfkill_sync);
 884                 return 0;
 885         }
 886
 887         return rdev->ops->set_tx_power(wdev->wiphy, type, DBM_TO_MBM(dbm));
 888 }
 889 EXPORT_SYMBOL_GPL(cfg80211_wext_siwtxpower);
 890
 891 int cfg80211_wext_giwtxpower(struct net_device *dev,
 892                              struct iw_request_info *info,
 893                              union iwreq_data *data, char *extra)
 894 {
 895         struct wireless_dev *wdev = dev->ieee80211_ptr;
 896         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
 897         int err, val;
 898
 899         if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM)
 900                 return -EINVAL;
 901         if (data->txpower.flags & IW_TXPOW_RANGE)
 902                 return -EINVAL;
 903
 904         if (!rdev->ops->get_tx_power)
 905                 return -EOPNOTSUPP;
 906
 907         err = rdev->ops->get_tx_power(wdev->wiphy, &val);
 908         if (err)
 909                 return err;
 910
 911         /* well... oh well */
 912         data->txpower.fixed = 1;
 913         data->txpower.disabled = rfkill_blocked(rdev->rfkill);
 914         data->txpower.value = val;
 915         data->txpower.flags = IW_TXPOW_DBM;
 916
 917         return 0;
 918 }
 919 EXPORT_SYMBOL_GPL(cfg80211_wext_giwtxpower);
 920
 921 static int cfg80211_set_auth_alg(struct wireless_dev *wdev,
 922                                  s32 auth_alg)
 923 {
 924         int nr_alg = 0;
 925
 926         if (!auth_alg)
 927                 return -EINVAL;
 928
 929         if (auth_alg & ~(IW_AUTH_ALG_OPEN_SYSTEM |
 930                          IW_AUTH_ALG_SHARED_KEY |
 931                          IW_AUTH_ALG_LEAP))
 932                 return -EINVAL;
 933
 934         if (auth_alg & IW_AUTH_ALG_OPEN_SYSTEM) {
 935                 nr_alg++;
 936                 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
 937         }
 938
 939         if (auth_alg & IW_AUTH_ALG_SHARED_KEY) {
 940                 nr_alg++;
 941                 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_SHARED_KEY;
 942         }
 943
 944         if (auth_alg & IW_AUTH_ALG_LEAP) {
 945                 nr_alg++;
 946                 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_NETWORK_EAP;
 947         }
 948
 949         if (nr_alg > 1)
 950                 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
 951
 952         return 0;
 953 }
 954
 955 static int cfg80211_set_wpa_version(struct wireless_dev *wdev, u32 wpa_versions)
 956 {
 957         if (wpa_versions & ~(IW_AUTH_WPA_VERSION_WPA |
 958                              IW_AUTH_WPA_VERSION_WPA2|
 959                              IW_AUTH_WPA_VERSION_DISABLED))
 960                 return -EINVAL;
 961
 962         if ((wpa_versions & IW_AUTH_WPA_VERSION_DISABLED) &&
 963             (wpa_versions & (IW_AUTH_WPA_VERSION_WPA|
 964                              IW_AUTH_WPA_VERSION_WPA2)))
 965                 return -EINVAL;
 966
 967         if (wpa_versions & IW_AUTH_WPA_VERSION_DISABLED)
 968                 wdev->wext.connect.crypto.wpa_versions &=
 969                         ~(NL80211_WPA_VERSION_1|NL80211_WPA_VERSION_2);
 970
 971         if (wpa_versions & IW_AUTH_WPA_VERSION_WPA)
 972                 wdev->wext.connect.crypto.wpa_versions |=
 973                         NL80211_WPA_VERSION_1;
 974
 975         if (wpa_versions & IW_AUTH_WPA_VERSION_WPA2)
 976                 wdev->wext.connect.crypto.wpa_versions |=
 977                         NL80211_WPA_VERSION_2;
 978
 979         return 0;
 980 }
 981
 982 static int cfg80211_set_cipher_group(struct wireless_dev *wdev, u32 cipher)
 983 {
 984         if (cipher & IW_AUTH_CIPHER_WEP40)
 985                 wdev->wext.connect.crypto.cipher_group =
 986                         WLAN_CIPHER_SUITE_WEP40;
 987         else if (cipher & IW_AUTH_CIPHER_WEP104)
 988                 wdev->wext.connect.crypto.cipher_group =
 989                         WLAN_CIPHER_SUITE_WEP104;
 990         else if (cipher & IW_AUTH_CIPHER_TKIP)
 991                 wdev->wext.connect.crypto.cipher_group =
 992                         WLAN_CIPHER_SUITE_TKIP;
 993         else if (cipher & IW_AUTH_CIPHER_CCMP)
 994                 wdev->wext.connect.crypto.cipher_group =
 995                         WLAN_CIPHER_SUITE_CCMP;
 996         else if (cipher & IW_AUTH_CIPHER_AES_CMAC)
 997                 wdev->wext.connect.crypto.cipher_group =
 998                         WLAN_CIPHER_SUITE_AES_CMAC;
 999         else if (cipher & IW_AUTH_CIPHER_NONE)
1000                 wdev->wext.connect.crypto.cipher_group = 0;
1001         else
1002                 return -EINVAL;
1003
1004         return 0;
1005 }
1006
1007 static int cfg80211_set_cipher_pairwise(struct wireless_dev *wdev, u32 cipher)
1008 {
1009         int nr_ciphers = 0;
1010         u32 *ciphers_pairwise = wdev->wext.connect.crypto.ciphers_pairwise;
1011
1012         if (cipher & IW_AUTH_CIPHER_WEP40) {
1013                 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_WEP40;
1014                 nr_ciphers++;
1015         }
1016
1017         if (cipher & IW_AUTH_CIPHER_WEP104) {
1018                 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_WEP104;
1019                 nr_ciphers++;
1020         }
1021
1022         if (cipher & IW_AUTH_CIPHER_TKIP) {
1023                 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_TKIP;
1024                 nr_ciphers++;
1025         }
1026
1027         if (cipher & IW_AUTH_CIPHER_CCMP) {
1028                 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_CCMP;
1029                 nr_ciphers++;
1030         }
1031
1032         if (cipher & IW_AUTH_CIPHER_AES_CMAC) {
1033                 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_AES_CMAC;
1034                 nr_ciphers++;
1035         }
1036
1037         BUILD_BUG_ON(NL80211_MAX_NR_CIPHER_SUITES < 5);
1038
1039         wdev->wext.connect.crypto.n_ciphers_pairwise = nr_ciphers;
1040
1041         return 0;
1042 }
1043
1044
1045 static int cfg80211_set_key_mgt(struct wireless_dev *wdev, u32 key_mgt)
1046 {
1047         int nr_akm_suites = 0;
1048
1049         if (key_mgt & ~(IW_AUTH_KEY_MGMT_802_1X |
1050                         IW_AUTH_KEY_MGMT_PSK))
1051                 return -EINVAL;
1052
1053         if (key_mgt & IW_AUTH_KEY_MGMT_802_1X) {
1054                 wdev->wext.connect.crypto.akm_suites[nr_akm_suites] =
1055                         WLAN_AKM_SUITE_8021X;
1056                 nr_akm_suites++;
1057         }
1058
1059         if (key_mgt & IW_AUTH_KEY_MGMT_PSK) {
1060                 wdev->wext.connect.crypto.akm_suites[nr_akm_suites] =
1061                         WLAN_AKM_SUITE_PSK;
1062                 nr_akm_suites++;
1063         }
1064
1065         wdev->wext.connect.crypto.n_akm_suites = nr_akm_suites;
1066
1067         return 0;
1068 }
1069
1070 int cfg80211_wext_siwauth(struct net_device *dev,
1071                           struct iw_request_info *info,
1072                           struct iw_param *data, char *extra)
1073 {
1074         struct wireless_dev *wdev = dev->ieee80211_ptr;
1075
1076         if (wdev->iftype != NL80211_IFTYPE_STATION)
1077                 return -EOPNOTSUPP;
1078
1079         switch (data->flags & IW_AUTH_INDEX) {
1080         case IW_AUTH_PRIVACY_INVOKED:
1081                 wdev->wext.connect.privacy = data->value;
1082                 return 0;
1083         case IW_AUTH_WPA_VERSION:
1084                 return cfg80211_set_wpa_version(wdev, data->value);
1085         case IW_AUTH_CIPHER_GROUP:
1086                 return cfg80211_set_cipher_group(wdev, data->value);
1087         case IW_AUTH_KEY_MGMT:
1088                 return cfg80211_set_key_mgt(wdev, data->value);
1089         case IW_AUTH_CIPHER_PAIRWISE:
1090                 return cfg80211_set_cipher_pairwise(wdev, data->value);
1091         case IW_AUTH_80211_AUTH_ALG:
1092                 return cfg80211_set_auth_alg(wdev, data->value);
1093         case IW_AUTH_WPA_ENABLED:
1094         case IW_AUTH_RX_UNENCRYPTED_EAPOL:
1095         case IW_AUTH_DROP_UNENCRYPTED:
1096         case IW_AUTH_MFP:
1097                 return 0;
1098         default:
1099                 return -EOPNOTSUPP;
1100         }
1101 }
1102 EXPORT_SYMBOL_GPL(cfg80211_wext_siwauth);
1103
1104 int cfg80211_wext_giwauth(struct net_device *dev,
1105                           struct iw_request_info *info,
1106                           struct iw_param *data, char *extra)
1107 {
1108         /* XXX: what do we need? */
1109
1110         return -EOPNOTSUPP;
1111 }
1112 EXPORT_SYMBOL_GPL(cfg80211_wext_giwauth);
1113
1114 int cfg80211_wext_siwpower(struct net_device *dev,
1115                            struct iw_request_info *info,
1116                            struct iw_param *wrq, char *extra)
1117 {
1118         struct wireless_dev *wdev = dev->ieee80211_ptr;
1119         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1120         bool ps = wdev->ps;
1121         int timeout = wdev->ps_timeout;
1122         int err;
1123
1124         if (wdev->iftype != NL80211_IFTYPE_STATION)
1125                 return -EINVAL;
1126
1127         if (!rdev->ops->set_power_mgmt)
1128                 return -EOPNOTSUPP;
1129
1130         if (wrq->disabled) {
1131                 ps = false;
1132         } else {
1133                 switch (wrq->flags & IW_POWER_MODE) {
1134                 case IW_POWER_ON:       /* If not specified */
1135                 case IW_POWER_MODE:     /* If set all mask */
1136                 case IW_POWER_ALL_R:    /* If explicitely state all */
1137                         ps = true;
1138                         break;
1139                 default:                /* Otherwise we ignore */
1140                         return -EINVAL;
1141                 }
1142
1143                 if (wrq->flags & ~(IW_POWER_MODE | IW_POWER_TIMEOUT))
1144                         return -EINVAL;
1145
1146                 if (wrq->flags & IW_POWER_TIMEOUT)
1147                         timeout = wrq->value / 1000;
1148         }
1149
1150         err = rdev->ops->set_power_mgmt(wdev->wiphy, dev, ps, timeout);
1151         if (err)
1152                 return err;
1153
1154         wdev->ps = ps;
1155         wdev->ps_timeout = timeout;
1156
1157         return 0;
1158
1159 }
1160 EXPORT_SYMBOL_GPL(cfg80211_wext_siwpower);
1161
1162 int cfg80211_wext_giwpower(struct net_device *dev,
1163                            struct iw_request_info *info,
1164                            struct iw_param *wrq, char *extra)
1165 {
1166         struct wireless_dev *wdev = dev->ieee80211_ptr;
1167
1168         wrq->disabled = !wdev->ps;
1169
1170         return 0;
1171 }
1172 EXPORT_SYMBOL_GPL(cfg80211_wext_giwpower);
1173
1174 static int cfg80211_wds_wext_siwap(struct net_device *dev,
1175                                    struct iw_request_info *info,
1176                                    struct sockaddr *addr, char *extra)
1177 {
1178         struct wireless_dev *wdev = dev->ieee80211_ptr;
1179         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1180         int err;
1181
1182         if (WARN_ON(wdev->iftype != NL80211_IFTYPE_WDS))
1183                 return -EINVAL;
1184
1185         if (addr->sa_family != ARPHRD_ETHER)
1186                 return -EINVAL;
1187
1188         if (netif_running(dev))
1189                 return -EBUSY;
1190
1191         if (!rdev->ops->set_wds_peer)
1192                 return -EOPNOTSUPP;
1193
1194         err = rdev->ops->set_wds_peer(wdev->wiphy, dev, (u8 *) &addr->sa_data);
1195         if (err)
1196                 return err;
1197
1198         memcpy(&wdev->wext.bssid, (u8 *) &addr->sa_data, ETH_ALEN);
1199
1200         return 0;
1201 }
1202
1203 static int cfg80211_wds_wext_giwap(struct net_device *dev,
1204                                    struct iw_request_info *info,
1205                                    struct sockaddr *addr, char *extra)
1206 {
1207         struct wireless_dev *wdev = dev->ieee80211_ptr;
1208
1209         if (WARN_ON(wdev->iftype != NL80211_IFTYPE_WDS))
1210                 return -EINVAL;
1211
1212         addr->sa_family = ARPHRD_ETHER;
1213         memcpy(&addr->sa_data, wdev->wext.bssid, ETH_ALEN);
1214
1215         return 0;
1216 }
1217
1218 int cfg80211_wext_siwrate(struct net_device *dev,
1219                           struct iw_request_info *info,
1220                           struct iw_param *rate, char *extra)
1221 {
1222         struct wireless_dev *wdev = dev->ieee80211_ptr;
1223         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1224         struct cfg80211_bitrate_mask mask;
1225         u32 fixed, maxrate;
1226         struct ieee80211_supported_band *sband;
1227         int band, ridx;
1228         bool match = false;
1229
1230         if (!rdev->ops->set_bitrate_mask)
1231                 return -EOPNOTSUPP;
1232
1233         memset(&mask, 0, sizeof(mask));
1234         fixed = 0;
1235         maxrate = (u32)-1;
1236
1237         if (rate->value < 0) {
1238                 /* nothing */
1239         } else if (rate->fixed) {
1240                 fixed = rate->value / 100000;
1241         } else {
1242                 maxrate = rate->value / 100000;
1243         }
1244
1245         for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
1246                 sband = wdev->wiphy->bands[band];
1247                 if (sband == NULL)
1248                         continue;
1249                 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
1250                         struct ieee80211_rate *srate = &sband->bitrates[ridx];
1251                         if (fixed == srate->bitrate) {
1252                                 mask.control[band].legacy = 1 << ridx;
1253                                 match = true;
1254                                 break;
1255                         }
1256                         if (srate->bitrate <= maxrate) {
1257                                 mask.control[band].legacy |= 1 << ridx;
1258                                 match = true;
1259                         }
1260                 }
1261         }
1262
1263         if (!match)
1264                 return -EINVAL;
1265
1266         return rdev->ops->set_bitrate_mask(wdev->wiphy, dev, NULL, &mask);
1267 }
1268 EXPORT_SYMBOL_GPL(cfg80211_wext_siwrate);
1269
1270 int cfg80211_wext_giwrate(struct net_device *dev,
1271                           struct iw_request_info *info,
1272                           struct iw_param *rate, char *extra)
1273 {
1274         struct wireless_dev *wdev = dev->ieee80211_ptr;
1275         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1276         /* we are under RTNL - globally locked - so can use a static struct */
1277         static struct station_info sinfo;
1278         u8 addr[ETH_ALEN];
1279         int err;
1280
1281         if (wdev->iftype != NL80211_IFTYPE_STATION)
1282                 return -EOPNOTSUPP;
1283
1284         if (!rdev->ops->get_station)
1285                 return -EOPNOTSUPP;
1286
1287         err = 0;
1288         wdev_lock(wdev);
1289         if (wdev->current_bss)
1290                 memcpy(addr, wdev->current_bss->pub.bssid, ETH_ALEN);
1291         else
1292                 err = -EOPNOTSUPP;
1293         wdev_unlock(wdev);
1294         if (err)
1295                 return err;
1296
1297         err = rdev->ops->get_station(&rdev->wiphy, dev, addr, &sinfo);
1298         if (err)
1299                 return err;
1300
1301         if (!(sinfo.filled & STATION_INFO_TX_BITRATE))
1302                 return -EOPNOTSUPP;
1303
1304         rate->value = 100000 * cfg80211_calculate_bitrate(&sinfo.txrate);
1305
1306         return 0;
1307 }
1308 EXPORT_SYMBOL_GPL(cfg80211_wext_giwrate);
1309
1310 /* Get wireless statistics.  Called by /proc/net/wireless and by SIOCGIWSTATS */
1311 struct iw_statistics *cfg80211_wireless_stats(struct net_device *dev)
1312 {
1313         struct wireless_dev *wdev = dev->ieee80211_ptr;
1314         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1315         /* we are under RTNL - globally locked - so can use static structs */
1316         static struct iw_statistics wstats;
1317         static struct station_info sinfo;
1318         u8 bssid[ETH_ALEN];
1319
1320         if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION)
1321                 return NULL;
1322
1323         if (!rdev->ops->get_station)
1324                 return NULL;
1325
1326         /* Grab BSSID of current BSS, if any */
1327         wdev_lock(wdev);
1328         if (!wdev->current_bss) {
1329                 wdev_unlock(wdev);
1330                 return NULL;
1331         }
1332         memcpy(bssid, wdev->current_bss->pub.bssid, ETH_ALEN);
1333         wdev_unlock(wdev);
1334
1335         if (rdev->ops->get_station(&rdev->wiphy, dev, bssid, &sinfo))
1336                 return NULL;
1337
1338         memset(&wstats, 0, sizeof(wstats));
1339
1340         switch (rdev->wiphy.signal_type) {
1341         case CFG80211_SIGNAL_TYPE_MBM:
1342                 if (sinfo.filled & STATION_INFO_SIGNAL) {
1343                         int sig = sinfo.signal;
1344                         wstats.qual.updated |= IW_QUAL_LEVEL_UPDATED;
1345                         wstats.qual.updated |= IW_QUAL_QUAL_UPDATED;
1346                         wstats.qual.updated |= IW_QUAL_DBM;
1347                         wstats.qual.level = sig;
1348                         if (sig < -110)
1349                                 sig = -110;
1350                         else if (sig > -40)
1351                                 sig = -40;
1352                         wstats.qual.qual = sig + 110;
1353                         break;
1354                 }
1355         case CFG80211_SIGNAL_TYPE_UNSPEC:
1356                 if (sinfo.filled & STATION_INFO_SIGNAL) {
1357                         wstats.qual.updated |= IW_QUAL_LEVEL_UPDATED;
1358                         wstats.qual.updated |= IW_QUAL_QUAL_UPDATED;
1359                         wstats.qual.level = sinfo.signal;
1360                         wstats.qual.qual = sinfo.signal;
1361                         break;
1362                 }
1363         default:
1364                 wstats.qual.updated |= IW_QUAL_LEVEL_INVALID;
1365                 wstats.qual.updated |= IW_QUAL_QUAL_INVALID;
1366         }
1367
1368         wstats.qual.updated |= IW_QUAL_NOISE_INVALID;
1369         if (sinfo.filled & STATION_INFO_RX_DROP_MISC)
1370                 wstats.discard.misc = sinfo.rx_dropped_misc;
1371         if (sinfo.filled & STATION_INFO_TX_FAILED)
1372                 wstats.discard.retries = sinfo.tx_failed;
1373
1374         return &wstats;
1375 }
1376 EXPORT_SYMBOL_GPL(cfg80211_wireless_stats);
1377
1378 int cfg80211_wext_siwap(struct net_device *dev,
1379                         struct iw_request_info *info,
1380                         struct sockaddr *ap_addr, char *extra)
1381 {
1382         struct wireless_dev *wdev = dev->ieee80211_ptr;
1383
1384         switch (wdev->iftype) {
1385         case NL80211_IFTYPE_ADHOC:
1386                 return cfg80211_ibss_wext_siwap(dev, info, ap_addr, extra);
1387         case NL80211_IFTYPE_STATION:
1388                 return cfg80211_mgd_wext_siwap(dev, info, ap_addr, extra);
1389         case NL80211_IFTYPE_WDS:
1390                 return cfg80211_wds_wext_siwap(dev, info, ap_addr, extra);
1391         default:
1392                 return -EOPNOTSUPP;
1393         }
1394 }
1395 EXPORT_SYMBOL_GPL(cfg80211_wext_siwap);
1396
1397 int cfg80211_wext_giwap(struct net_device *dev,
1398                         struct iw_request_info *info,
1399                         struct sockaddr *ap_addr, char *extra)
1400 {
1401         struct wireless_dev *wdev = dev->ieee80211_ptr;
1402
1403         switch (wdev->iftype) {
1404         case NL80211_IFTYPE_ADHOC:
1405                 return cfg80211_ibss_wext_giwap(dev, info, ap_addr, extra);
1406         case NL80211_IFTYPE_STATION:
1407                 return cfg80211_mgd_wext_giwap(dev, info, ap_addr, extra);
1408         case NL80211_IFTYPE_WDS:
1409                 return cfg80211_wds_wext_giwap(dev, info, ap_addr, extra);
1410         default:
1411                 return -EOPNOTSUPP;
1412         }
1413 }
1414 EXPORT_SYMBOL_GPL(cfg80211_wext_giwap);
1415
1416 int cfg80211_wext_siwessid(struct net_device *dev,
1417                            struct iw_request_info *info,
1418                            struct iw_point *data, char *ssid)
1419 {
1420         struct wireless_dev *wdev = dev->ieee80211_ptr;
1421
1422         switch (wdev->iftype) {
1423         case NL80211_IFTYPE_ADHOC:
1424                 return cfg80211_ibss_wext_siwessid(dev, info, data, ssid);
1425         case NL80211_IFTYPE_STATION:
1426                 return cfg80211_mgd_wext_siwessid(dev, info, data, ssid);
1427         default:
1428                 return -EOPNOTSUPP;
1429         }
1430 }
1431 EXPORT_SYMBOL_GPL(cfg80211_wext_siwessid);
1432
1433 int cfg80211_wext_giwessid(struct net_device *dev,
1434                            struct iw_request_info *info,
1435                            struct iw_point *data, char *ssid)
1436 {
1437         struct wireless_dev *wdev = dev->ieee80211_ptr;
1438
1439         data->flags = 0;
1440         data->length = 0;
1441
1442         switch (wdev->iftype) {
1443         case NL80211_IFTYPE_ADHOC:
1444                 return cfg80211_ibss_wext_giwessid(dev, info, data, ssid);
1445         case NL80211_IFTYPE_STATION:
1446                 return cfg80211_mgd_wext_giwessid(dev, info, data, ssid);
1447         default:
1448                 return -EOPNOTSUPP;
1449         }
1450 }
1451 EXPORT_SYMBOL_GPL(cfg80211_wext_giwessid);
1452
1453 int cfg80211_wext_siwpmksa(struct net_device *dev,
1454                            struct iw_request_info *info,
1455                            struct iw_point *data, char *extra)
1456 {
1457         struct wireless_dev *wdev = dev->ieee80211_ptr;
1458         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1459         struct cfg80211_pmksa cfg_pmksa;
1460         struct iw_pmksa *pmksa = (struct iw_pmksa *)extra;
1461
1462         memset(&cfg_pmksa, 0, sizeof(struct cfg80211_pmksa));
1463
1464         if (wdev->iftype != NL80211_IFTYPE_STATION)
1465                 return -EINVAL;
1466
1467         cfg_pmksa.bssid = pmksa->bssid.sa_data;
1468         cfg_pmksa.pmkid = pmksa->pmkid;
1469
1470         switch (pmksa->cmd) {
1471         case IW_PMKSA_ADD:
1472                 if (!rdev->ops->set_pmksa)
1473                         return -EOPNOTSUPP;
1474
1475                 return rdev->ops->set_pmksa(&rdev->wiphy, dev, &cfg_pmksa);
1476
1477         case IW_PMKSA_REMOVE:
1478                 if (!rdev->ops->del_pmksa)
1479                         return -EOPNOTSUPP;
1480
1481                 return rdev->ops->del_pmksa(&rdev->wiphy, dev, &cfg_pmksa);
1482
1483         case IW_PMKSA_FLUSH:
1484                 if (!rdev->ops->flush_pmksa)
1485                         return -EOPNOTSUPP;
1486
1487                 return rdev->ops->flush_pmksa(&rdev->wiphy, dev);
1488
1489         default:
1490                 return -EOPNOTSUPP;
1491         }
1492 }
1493 EXPORT_SYMBOL_GPL(cfg80211_wext_siwpmksa);
1494
1495 static const iw_handler cfg80211_handlers[] = {
1496         [IW_IOCTL_IDX(SIOCGIWNAME)]     = (iw_handler) cfg80211_wext_giwname,
1497         [IW_IOCTL_IDX(SIOCSIWFREQ)]     = (iw_handler) cfg80211_wext_siwfreq,
1498         [IW_IOCTL_IDX(SIOCGIWFREQ)]     = (iw_handler) cfg80211_wext_giwfreq,
1499         [IW_IOCTL_IDX(SIOCSIWMODE)]     = (iw_handler) cfg80211_wext_siwmode,
1500         [IW_IOCTL_IDX(SIOCGIWMODE)]     = (iw_handler) cfg80211_wext_giwmode,
1501         [IW_IOCTL_IDX(SIOCGIWRANGE)]    = (iw_handler) cfg80211_wext_giwrange,
1502         [IW_IOCTL_IDX(SIOCSIWAP)]       = (iw_handler) cfg80211_wext_siwap,
1503         [IW_IOCTL_IDX(SIOCGIWAP)]       = (iw_handler) cfg80211_wext_giwap,
1504         [IW_IOCTL_IDX(SIOCSIWMLME)]     = (iw_handler) cfg80211_wext_siwmlme,
1505         [IW_IOCTL_IDX(SIOCSIWSCAN)]     = (iw_handler) cfg80211_wext_siwscan,
1506         [IW_IOCTL_IDX(SIOCGIWSCAN)]     = (iw_handler) cfg80211_wext_giwscan,
1507         [IW_IOCTL_IDX(SIOCSIWESSID)]    = (iw_handler) cfg80211_wext_siwessid,
1508         [IW_IOCTL_IDX(SIOCGIWESSID)]    = (iw_handler) cfg80211_wext_giwessid,
1509         [IW_IOCTL_IDX(SIOCSIWRATE)]     = (iw_handler) cfg80211_wext_siwrate,
1510         [IW_IOCTL_IDX(SIOCGIWRATE)]     = (iw_handler) cfg80211_wext_giwrate,
1511         [IW_IOCTL_IDX(SIOCSIWRTS)]      = (iw_handler) cfg80211_wext_siwrts,
1512         [IW_IOCTL_IDX(SIOCGIWRTS)]      = (iw_handler) cfg80211_wext_giwrts,
1513         [IW_IOCTL_IDX(SIOCSIWFRAG)]     = (iw_handler) cfg80211_wext_siwfrag,
1514         [IW_IOCTL_IDX(SIOCGIWFRAG)]     = (iw_handler) cfg80211_wext_giwfrag,
1515         [IW_IOCTL_IDX(SIOCSIWTXPOW)]    = (iw_handler) cfg80211_wext_siwtxpower,
1516         [IW_IOCTL_IDX(SIOCGIWTXPOW)]    = (iw_handler) cfg80211_wext_giwtxpower,
1517         [IW_IOCTL_IDX(SIOCSIWRETRY)]    = (iw_handler) cfg80211_wext_siwretry,
1518         [IW_IOCTL_IDX(SIOCGIWRETRY)]    = (iw_handler) cfg80211_wext_giwretry,
1519         [IW_IOCTL_IDX(SIOCSIWENCODE)]   = (iw_handler) cfg80211_wext_siwencode,
1520         [IW_IOCTL_IDX(SIOCGIWENCODE)]   = (iw_handler) cfg80211_wext_giwencode,
1521         [IW_IOCTL_IDX(SIOCSIWPOWER)]    = (iw_handler) cfg80211_wext_siwpower,
1522         [IW_IOCTL_IDX(SIOCGIWPOWER)]    = (iw_handler) cfg80211_wext_giwpower,
1523         [IW_IOCTL_IDX(SIOCSIWGENIE)]    = (iw_handler) cfg80211_wext_siwgenie,
1524         [IW_IOCTL_IDX(SIOCSIWAUTH)]     = (iw_handler) cfg80211_wext_siwauth,
1525         [IW_IOCTL_IDX(SIOCGIWAUTH)]     = (iw_handler) cfg80211_wext_giwauth,
1526         [IW_IOCTL_IDX(SIOCSIWENCODEEXT)]= (iw_handler) cfg80211_wext_siwencodeext,
1527         [IW_IOCTL_IDX(SIOCSIWPMKSA)]    = (iw_handler) cfg80211_wext_siwpmksa,
1528 };
1529
1530 const struct iw_handler_def cfg80211_wext_handler = {
1531         .num_standard           = ARRAY_SIZE(cfg80211_handlers),
1532         .standard               = cfg80211_handlers,
1533         .get_wireless_stats = cfg80211_wireless_stats,
1534 };