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 <net/cfg80211-wext.h>
  19 #include "wext-compat.h"
  20 #include "core.h"
  21
  22 int cfg80211_wext_giwname(struct net_device *dev,
  23                           struct iw_request_info *info,
  24                           char *name, char *extra)
  25 {
  26         struct wireless_dev *wdev = dev->ieee80211_ptr;
  27         struct ieee80211_supported_band *sband;
  28         bool is_ht = false, is_a = false, is_b = false, is_g = false;
  29
  30         if (!wdev)
  31                 return -EOPNOTSUPP;
  32
  33         sband = wdev->wiphy->bands[IEEE80211_BAND_5GHZ];
  34         if (sband) {
  35                 is_a = true;
  36                 is_ht |= sband->ht_cap.ht_supported;
  37         }
  38
  39         sband = wdev->wiphy->bands[IEEE80211_BAND_2GHZ];
  40         if (sband) {
  41                 int i;
  42                 /* Check for mandatory rates */
  43                 for (i = 0; i < sband->n_bitrates; i++) {
  44                         if (sband->bitrates[i].bitrate == 10)
  45                                 is_b = true;
  46                         if (sband->bitrates[i].bitrate == 60)
  47                                 is_g = true;
  48                 }
  49                 is_ht |= sband->ht_cap.ht_supported;
  50         }
  51
  52         strcpy(name, "IEEE 802.11");
  53         if (is_a)
  54                 strcat(name, "a");
  55         if (is_b)
  56                 strcat(name, "b");
  57         if (is_g)
  58                 strcat(name, "g");
  59         if (is_ht)
  60                 strcat(name, "n");
  61
  62         return 0;
  63 }
  64 EXPORT_SYMBOL_GPL(cfg80211_wext_giwname);
  65
  66 int cfg80211_wext_siwmode(struct net_device *dev, struct iw_request_info *info,
  67                           u32 *mode, char *extra)
  68 {
  69         struct wireless_dev *wdev = dev->ieee80211_ptr;
  70         struct cfg80211_registered_device *rdev;
  71         struct vif_params vifparams;
  72         enum nl80211_iftype type;
  73         int ret;
  74
  75         rdev = wiphy_to_dev(wdev->wiphy);
  76
  77         switch (*mode) {
  78         case IW_MODE_INFRA:
  79                 type = NL80211_IFTYPE_STATION;
  80                 break;
  81         case IW_MODE_ADHOC:
  82                 type = NL80211_IFTYPE_ADHOC;
  83                 break;
  84         case IW_MODE_REPEAT:
  85                 type = NL80211_IFTYPE_WDS;
  86                 break;
  87         case IW_MODE_MONITOR:
  88                 type = NL80211_IFTYPE_MONITOR;
  89                 break;
  90         default:
  91                 return -EINVAL;
  92         }
  93
  94         if (type == wdev->iftype)
  95                 return 0;
  96
  97         memset(&vifparams, 0, sizeof(vifparams));
  98
  99         cfg80211_lock_rdev(rdev);
 100         ret = cfg80211_change_iface(rdev, dev, type, NULL, &vifparams);
 101         cfg80211_unlock_rdev(rdev);
 102
 103         return ret;
 104 }
 105 EXPORT_SYMBOL_GPL(cfg80211_wext_siwmode);
 106
 107 int cfg80211_wext_giwmode(struct net_device *dev, struct iw_request_info *info,
 108                           u32 *mode, char *extra)
 109 {
 110         struct wireless_dev *wdev = dev->ieee80211_ptr;
 111
 112         if (!wdev)
 113                 return -EOPNOTSUPP;
 114
 115         switch (wdev->iftype) {
 116         case NL80211_IFTYPE_AP:
 117                 *mode = IW_MODE_MASTER;
 118                 break;
 119         case NL80211_IFTYPE_STATION:
 120                 *mode = IW_MODE_INFRA;
 121                 break;
 122         case NL80211_IFTYPE_ADHOC:
 123                 *mode = IW_MODE_ADHOC;
 124                 break;
 125         case NL80211_IFTYPE_MONITOR:
 126                 *mode = IW_MODE_MONITOR;
 127                 break;
 128         case NL80211_IFTYPE_WDS:
 129                 *mode = IW_MODE_REPEAT;
 130                 break;
 131         case NL80211_IFTYPE_AP_VLAN:
 132                 *mode = IW_MODE_SECOND;         /* FIXME */
 133                 break;
 134         default:
 135                 *mode = IW_MODE_AUTO;
 136                 break;
 137         }
 138         return 0;
 139 }
 140 EXPORT_SYMBOL_GPL(cfg80211_wext_giwmode);
 141
 142
 143 int cfg80211_wext_giwrange(struct net_device *dev,
 144                            struct iw_request_info *info,
 145                            struct iw_point *data, char *extra)
 146 {
 147         struct wireless_dev *wdev = dev->ieee80211_ptr;
 148         struct iw_range *range = (struct iw_range *) extra;
 149         enum ieee80211_band band;
 150         int i, c = 0;
 151
 152         if (!wdev)
 153                 return -EOPNOTSUPP;
 154
 155         data->length = sizeof(struct iw_range);
 156         memset(range, 0, sizeof(struct iw_range));
 157
 158         range->we_version_compiled = WIRELESS_EXT;
 159         range->we_version_source = 21;
 160         range->retry_capa = IW_RETRY_LIMIT;
 161         range->retry_flags = IW_RETRY_LIMIT;
 162         range->min_retry = 0;
 163         range->max_retry = 255;
 164         range->min_rts = 0;
 165         range->max_rts = 2347;
 166         range->min_frag = 256;
 167         range->max_frag = 2346;
 168
 169         range->max_encoding_tokens = 4;
 170
 171         range->max_qual.updated = IW_QUAL_NOISE_INVALID;
 172
 173         switch (wdev->wiphy->signal_type) {
 174         case CFG80211_SIGNAL_TYPE_NONE:
 175                 break;
 176         case CFG80211_SIGNAL_TYPE_MBM:
 177                 range->max_qual.level = -110;
 178                 range->max_qual.qual = 70;
 179                 range->avg_qual.qual = 35;
 180                 range->max_qual.updated |= IW_QUAL_DBM;
 181                 range->max_qual.updated |= IW_QUAL_QUAL_UPDATED;
 182                 range->max_qual.updated |= IW_QUAL_LEVEL_UPDATED;
 183                 break;
 184         case CFG80211_SIGNAL_TYPE_UNSPEC:
 185                 range->max_qual.level = 100;
 186                 range->max_qual.qual = 100;
 187                 range->avg_qual.qual = 50;
 188                 range->max_qual.updated |= IW_QUAL_QUAL_UPDATED;
 189                 range->max_qual.updated |= IW_QUAL_LEVEL_UPDATED;
 190                 break;
 191         }
 192
 193         range->avg_qual.level = range->max_qual.level / 2;
 194         range->avg_qual.noise = range->max_qual.noise / 2;
 195         range->avg_qual.updated = range->max_qual.updated;
 196
 197         for (i = 0; i < wdev->wiphy->n_cipher_suites; i++) {
 198                 switch (wdev->wiphy->cipher_suites[i]) {
 199                 case WLAN_CIPHER_SUITE_TKIP:
 200                         range->enc_capa |= (IW_ENC_CAPA_CIPHER_TKIP |
 201                                             IW_ENC_CAPA_WPA);
 202                         break;
 203
 204                 case WLAN_CIPHER_SUITE_CCMP:
 205                         range->enc_capa |= (IW_ENC_CAPA_CIPHER_CCMP |
 206                                             IW_ENC_CAPA_WPA2);
 207                         break;
 208
 209                 case WLAN_CIPHER_SUITE_WEP40:
 210                         range->encoding_size[range->num_encoding_sizes++] =
 211                                 WLAN_KEY_LEN_WEP40;
 212                         break;
 213
 214                 case WLAN_CIPHER_SUITE_WEP104:
 215                         range->encoding_size[range->num_encoding_sizes++] =
 216                                 WLAN_KEY_LEN_WEP104;
 217                         break;
 218                 }
 219         }
 220
 221         for (band = 0; band < IEEE80211_NUM_BANDS; band ++) {
 222                 struct ieee80211_supported_band *sband;
 223
 224                 sband = wdev->wiphy->bands[band];
 225
 226                 if (!sband)
 227                         continue;
 228
 229                 for (i = 0; i < sband->n_channels && c < IW_MAX_FREQUENCIES; i++) {
 230                         struct ieee80211_channel *chan = &sband->channels[i];
 231
 232                         if (!(chan->flags & IEEE80211_CHAN_DISABLED)) {
 233                                 range->freq[c].i =
 234                                         ieee80211_frequency_to_channel(
 235                                                 chan->center_freq);
 236                                 range->freq[c].m = chan->center_freq;
 237                                 range->freq[c].e = 6;
 238                                 c++;
 239                         }
 240                 }
 241         }
 242         range->num_channels = c;
 243         range->num_frequency = c;
 244
 245         IW_EVENT_CAPA_SET_KERNEL(range->event_capa);
 246         IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWAP);
 247         IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWSCAN);
 248
 249         if (wdev->wiphy->max_scan_ssids > 0)
 250                 range->scan_capa |= IW_SCAN_CAPA_ESSID;
 251
 252         return 0;
 253 }
 254 EXPORT_SYMBOL_GPL(cfg80211_wext_giwrange);
 255
 256
 257 /**
 258  * cfg80211_wext_freq - get wext frequency for non-"auto"
 259  * @wiphy: the wiphy
 260  * @freq: the wext freq encoding
 261  *
 262  * Returns a frequency, or a negative error code, or 0 for auto.
 263  */
 264 int cfg80211_wext_freq(struct wiphy *wiphy, struct iw_freq *freq)
 265 {
 266         /*
 267          * Parse frequency - return 0 for auto and
 268          * -EINVAL for impossible things.
 269          */
 270         if (freq->e == 0) {
 271                 enum ieee80211_band band = IEEE80211_BAND_2GHZ;
 272                 if (freq->m < 0)
 273                         return 0;
 274                 if (freq->m > 14)
 275                         band = IEEE80211_BAND_5GHZ;
 276                 return ieee80211_channel_to_frequency(freq->m, band);
 277         } else {
 278                 int i, div = 1000000;
 279                 for (i = 0; i < freq->e; i++)
 280                         div /= 10;
 281                 if (div <= 0)
 282                         return -EINVAL;
 283                 return freq->m / div;
 284         }
 285 }
 286
 287 int cfg80211_wext_siwrts(struct net_device *dev,
 288                          struct iw_request_info *info,
 289                          struct iw_param *rts, char *extra)
 290 {
 291         struct wireless_dev *wdev = dev->ieee80211_ptr;
 292         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
 293         u32 orts = wdev->wiphy->rts_threshold;
 294         int err;
 295
 296         if (rts->disabled || !rts->fixed)
 297                 wdev->wiphy->rts_threshold = (u32) -1;
 298         else if (rts->value < 0)
 299                 return -EINVAL;
 300         else
 301                 wdev->wiphy->rts_threshold = rts->value;
 302
 303         err = rdev->ops->set_wiphy_params(wdev->wiphy,
 304                                           WIPHY_PARAM_RTS_THRESHOLD);
 305         if (err)
 306                 wdev->wiphy->rts_threshold = orts;
 307
 308         return err;
 309 }
 310 EXPORT_SYMBOL_GPL(cfg80211_wext_siwrts);
 311
 312 int cfg80211_wext_giwrts(struct net_device *dev,
 313                          struct iw_request_info *info,
 314                          struct iw_param *rts, char *extra)
 315 {
 316         struct wireless_dev *wdev = dev->ieee80211_ptr;
 317
 318         rts->value = wdev->wiphy->rts_threshold;
 319         rts->disabled = rts->value == (u32) -1;
 320         rts->fixed = 1;
 321
 322         return 0;
 323 }
 324 EXPORT_SYMBOL_GPL(cfg80211_wext_giwrts);
 325
 326 int cfg80211_wext_siwfrag(struct net_device *dev,
 327                           struct iw_request_info *info,
 328                           struct iw_param *frag, char *extra)
 329 {
 330         struct wireless_dev *wdev = dev->ieee80211_ptr;
 331         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
 332         u32 ofrag = wdev->wiphy->frag_threshold;
 333         int err;
 334
 335         if (frag->disabled || !frag->fixed)
 336                 wdev->wiphy->frag_threshold = (u32) -1;
 337         else if (frag->value < 256)
 338                 return -EINVAL;
 339         else {
 340                 /* Fragment length must be even, so strip LSB. */
 341                 wdev->wiphy->frag_threshold = frag->value & ~0x1;
 342         }
 343
 344         err = rdev->ops->set_wiphy_params(wdev->wiphy,
 345                                           WIPHY_PARAM_FRAG_THRESHOLD);
 346         if (err)
 347                 wdev->wiphy->frag_threshold = ofrag;
 348
 349         return err;
 350 }
 351 EXPORT_SYMBOL_GPL(cfg80211_wext_siwfrag);
 352
 353 int cfg80211_wext_giwfrag(struct net_device *dev,
 354                           struct iw_request_info *info,
 355                           struct iw_param *frag, char *extra)
 356 {
 357         struct wireless_dev *wdev = dev->ieee80211_ptr;
 358
 359         frag->value = wdev->wiphy->frag_threshold;
 360         frag->disabled = frag->value == (u32) -1;
 361         frag->fixed = 1;
 362
 363         return 0;
 364 }
 365 EXPORT_SYMBOL_GPL(cfg80211_wext_giwfrag);
 366
 367 static int cfg80211_wext_siwretry(struct net_device *dev,
 368                                   struct iw_request_info *info,
 369                                   struct iw_param *retry, char *extra)
 370 {
 371         struct wireless_dev *wdev = dev->ieee80211_ptr;
 372         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
 373         u32 changed = 0;
 374         u8 olong = wdev->wiphy->retry_long;
 375         u8 oshort = wdev->wiphy->retry_short;
 376         int err;
 377
 378         if (retry->disabled ||
 379             (retry->flags & IW_RETRY_TYPE) != IW_RETRY_LIMIT)
 380                 return -EINVAL;
 381
 382         if (retry->flags & IW_RETRY_LONG) {
 383                 wdev->wiphy->retry_long = retry->value;
 384                 changed |= WIPHY_PARAM_RETRY_LONG;
 385         } else if (retry->flags & IW_RETRY_SHORT) {
 386                 wdev->wiphy->retry_short = retry->value;
 387                 changed |= WIPHY_PARAM_RETRY_SHORT;
 388         } else {
 389                 wdev->wiphy->retry_short = retry->value;
 390                 wdev->wiphy->retry_long = retry->value;
 391                 changed |= WIPHY_PARAM_RETRY_LONG;
 392                 changed |= WIPHY_PARAM_RETRY_SHORT;
 393         }
 394
 395         if (!changed)
 396                 return 0;
 397
 398         err = rdev->ops->set_wiphy_params(wdev->wiphy, changed);
 399         if (err) {
 400                 wdev->wiphy->retry_short = oshort;
 401                 wdev->wiphy->retry_long = olong;
 402         }
 403
 404         return err;
 405 }
 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 static 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
 656 static int cfg80211_wext_siwencodeext(struct net_device *dev,
 657                                       struct iw_request_info *info,
 658                                       struct iw_point *erq, char *extra)
 659 {
 660         struct wireless_dev *wdev = dev->ieee80211_ptr;
 661         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
 662         struct iw_encode_ext *ext = (struct iw_encode_ext *) extra;
 663         const u8 *addr;
 664         int idx;
 665         bool remove = false;
 666         struct key_params params;
 667         u32 cipher;
 668
 669         if (wdev->iftype != NL80211_IFTYPE_STATION &&
 670             wdev->iftype != NL80211_IFTYPE_ADHOC)
 671                 return -EOPNOTSUPP;
 672
 673         /* no use -- only MFP (set_default_mgmt_key) is optional */
 674         if (!rdev->ops->del_key ||
 675             !rdev->ops->add_key ||
 676             !rdev->ops->set_default_key)
 677                 return -EOPNOTSUPP;
 678
 679         switch (ext->alg) {
 680         case IW_ENCODE_ALG_NONE:
 681                 remove = true;
 682                 cipher = 0;
 683                 break;
 684         case IW_ENCODE_ALG_WEP:
 685                 if (ext->key_len == 5)
 686                         cipher = WLAN_CIPHER_SUITE_WEP40;
 687                 else if (ext->key_len == 13)
 688                         cipher = WLAN_CIPHER_SUITE_WEP104;
 689                 else
 690                         return -EINVAL;
 691                 break;
 692         case IW_ENCODE_ALG_TKIP:
 693                 cipher = WLAN_CIPHER_SUITE_TKIP;
 694                 break;
 695         case IW_ENCODE_ALG_CCMP:
 696                 cipher = WLAN_CIPHER_SUITE_CCMP;
 697                 break;
 698         case IW_ENCODE_ALG_AES_CMAC:
 699                 cipher = WLAN_CIPHER_SUITE_AES_CMAC;
 700                 break;
 701         default:
 702                 return -EOPNOTSUPP;
 703         }
 704
 705         if (erq->flags & IW_ENCODE_DISABLED)
 706                 remove = true;
 707
 708         idx = erq->flags & IW_ENCODE_INDEX;
 709         if (cipher == WLAN_CIPHER_SUITE_AES_CMAC) {
 710                 if (idx < 4 || idx > 5) {
 711                         idx = wdev->wext.default_mgmt_key;
 712                         if (idx < 0)
 713                                 return -EINVAL;
 714                 } else
 715                         idx--;
 716         } else {
 717                 if (idx < 1 || idx > 4) {
 718                         idx = wdev->wext.default_key;
 719                         if (idx < 0)
 720                                 return -EINVAL;
 721                 } else
 722                         idx--;
 723         }
 724
 725         addr = ext->addr.sa_data;
 726         if (is_broadcast_ether_addr(addr))
 727                 addr = NULL;
 728
 729         memset(&params, 0, sizeof(params));
 730         params.key = ext->key;
 731         params.key_len = ext->key_len;
 732         params.cipher = cipher;
 733
 734         if (ext->ext_flags & IW_ENCODE_EXT_RX_SEQ_VALID) {
 735                 params.seq = ext->rx_seq;
 736                 params.seq_len = 6;
 737         }
 738
 739         return cfg80211_set_encryption(
 740                         rdev, dev,
 741                         !(ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY),
 742                         addr, remove,
 743                         ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY,
 744                         idx, &params);
 745 }
 746
 747 static int cfg80211_wext_giwencode(struct net_device *dev,
 748                                    struct iw_request_info *info,
 749                                    struct iw_point *erq, char *keybuf)
 750 {
 751         struct wireless_dev *wdev = dev->ieee80211_ptr;
 752         int idx;
 753
 754         if (wdev->iftype != NL80211_IFTYPE_STATION &&
 755             wdev->iftype != NL80211_IFTYPE_ADHOC)
 756                 return -EOPNOTSUPP;
 757
 758         idx = erq->flags & IW_ENCODE_INDEX;
 759         if (idx == 0) {
 760                 idx = wdev->wext.default_key;
 761                 if (idx < 0)
 762                         idx = 0;
 763         } else if (idx < 1 || idx > 4)
 764                 return -EINVAL;
 765         else
 766                 idx--;
 767
 768         erq->flags = idx + 1;
 769
 770         if (!wdev->wext.keys || !wdev->wext.keys->params[idx].cipher) {
 771                 erq->flags |= IW_ENCODE_DISABLED;
 772                 erq->length = 0;
 773                 return 0;
 774         }
 775
 776         erq->length = min_t(size_t, erq->length,
 777                             wdev->wext.keys->params[idx].key_len);
 778         memcpy(keybuf, wdev->wext.keys->params[idx].key, erq->length);
 779         erq->flags |= IW_ENCODE_ENABLED;
 780
 781         return 0;
 782 }
 783
 784 static 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                 mutex_lock(&rdev->devlist_mtx);
 806                 wdev_lock(wdev);
 807                 err = cfg80211_set_freq(rdev, wdev, freq, NL80211_CHAN_NO_HT);
 808                 wdev_unlock(wdev);
 809                 mutex_unlock(&rdev->devlist_mtx);
 810                 return err;
 811         default:
 812                 return -EOPNOTSUPP;
 813         }
 814 }
 815
 816 static int cfg80211_wext_giwfreq(struct net_device *dev,
 817                                  struct iw_request_info *info,
 818                                  struct iw_freq *freq, char *extra)
 819 {
 820         struct wireless_dev *wdev = dev->ieee80211_ptr;
 821
 822         switch (wdev->iftype) {
 823         case NL80211_IFTYPE_STATION:
 824                 return cfg80211_mgd_wext_giwfreq(dev, info, freq, extra);
 825         case NL80211_IFTYPE_ADHOC:
 826                 return cfg80211_ibss_wext_giwfreq(dev, info, freq, extra);
 827         default:
 828                 if (!wdev->channel)
 829                         return -EINVAL;
 830                 freq->m = wdev->channel->center_freq;
 831                 freq->e = 6;
 832                 return 0;
 833         }
 834 }
 835
 836 static int cfg80211_wext_siwtxpower(struct net_device *dev,
 837                                     struct iw_request_info *info,
 838                                     union iwreq_data *data, char *extra)
 839 {
 840         struct wireless_dev *wdev = dev->ieee80211_ptr;
 841         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
 842         enum nl80211_tx_power_setting type;
 843         int dbm = 0;
 844
 845         if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM)
 846                 return -EINVAL;
 847         if (data->txpower.flags & IW_TXPOW_RANGE)
 848                 return -EINVAL;
 849
 850         if (!rdev->ops->set_tx_power)
 851                 return -EOPNOTSUPP;
 852
 853         /* only change when not disabling */
 854         if (!data->txpower.disabled) {
 855                 rfkill_set_sw_state(rdev->rfkill, false);
 856
 857                 if (data->txpower.fixed) {
 858                         /*
 859                          * wext doesn't support negative values, see
 860                          * below where it's for automatic
 861                          */
 862                         if (data->txpower.value < 0)
 863                                 return -EINVAL;
 864                         dbm = data->txpower.value;
 865                         type = NL80211_TX_POWER_FIXED;
 866                         /* TODO: do regulatory check! */
 867                 } else {
 868                         /*
 869                          * Automatic power level setting, max being the value
 870                          * passed in from userland.
 871                          */
 872                         if (data->txpower.value < 0) {
 873                                 type = NL80211_TX_POWER_AUTOMATIC;
 874                         } else {
 875                                 dbm = data->txpower.value;
 876                                 type = NL80211_TX_POWER_LIMITED;
 877                         }
 878                 }
 879         } else {
 880                 rfkill_set_sw_state(rdev->rfkill, true);
 881                 schedule_work(&rdev->rfkill_sync);
 882                 return 0;
 883         }
 884
 885         return rdev->ops->set_tx_power(wdev->wiphy, type, DBM_TO_MBM(dbm));
 886 }
 887
 888 static int cfg80211_wext_giwtxpower(struct net_device *dev,
 889                                     struct iw_request_info *info,
 890                                     union iwreq_data *data, char *extra)
 891 {
 892         struct wireless_dev *wdev = dev->ieee80211_ptr;
 893         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
 894         int err, val;
 895
 896         if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM)
 897                 return -EINVAL;
 898         if (data->txpower.flags & IW_TXPOW_RANGE)
 899                 return -EINVAL;
 900
 901         if (!rdev->ops->get_tx_power)
 902                 return -EOPNOTSUPP;
 903
 904         err = rdev->ops->get_tx_power(wdev->wiphy, &val);
 905         if (err)
 906                 return err;
 907
 908         /* well... oh well */
 909         data->txpower.fixed = 1;
 910         data->txpower.disabled = rfkill_blocked(rdev->rfkill);
 911         data->txpower.value = val;
 912         data->txpower.flags = IW_TXPOW_DBM;
 913
 914         return 0;
 915 }
 916
 917 static int cfg80211_set_auth_alg(struct wireless_dev *wdev,
 918                                  s32 auth_alg)
 919 {
 920         int nr_alg = 0;
 921
 922         if (!auth_alg)
 923                 return -EINVAL;
 924
 925         if (auth_alg & ~(IW_AUTH_ALG_OPEN_SYSTEM |
 926                          IW_AUTH_ALG_SHARED_KEY |
 927                          IW_AUTH_ALG_LEAP))
 928                 return -EINVAL;
 929
 930         if (auth_alg & IW_AUTH_ALG_OPEN_SYSTEM) {
 931                 nr_alg++;
 932                 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
 933         }
 934
 935         if (auth_alg & IW_AUTH_ALG_SHARED_KEY) {
 936                 nr_alg++;
 937                 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_SHARED_KEY;
 938         }
 939
 940         if (auth_alg & IW_AUTH_ALG_LEAP) {
 941                 nr_alg++;
 942                 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_NETWORK_EAP;
 943         }
 944
 945         if (nr_alg > 1)
 946                 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
 947
 948         return 0;
 949 }
 950
 951 static int cfg80211_set_wpa_version(struct wireless_dev *wdev, u32 wpa_versions)
 952 {
 953         if (wpa_versions & ~(IW_AUTH_WPA_VERSION_WPA |
 954                              IW_AUTH_WPA_VERSION_WPA2|
 955                              IW_AUTH_WPA_VERSION_DISABLED))
 956                 return -EINVAL;
 957
 958         if ((wpa_versions & IW_AUTH_WPA_VERSION_DISABLED) &&
 959             (wpa_versions & (IW_AUTH_WPA_VERSION_WPA|
 960                              IW_AUTH_WPA_VERSION_WPA2)))
 961                 return -EINVAL;
 962
 963         if (wpa_versions & IW_AUTH_WPA_VERSION_DISABLED)
 964                 wdev->wext.connect.crypto.wpa_versions &=
 965                         ~(NL80211_WPA_VERSION_1|NL80211_WPA_VERSION_2);
 966
 967         if (wpa_versions & IW_AUTH_WPA_VERSION_WPA)
 968                 wdev->wext.connect.crypto.wpa_versions |=
 969                         NL80211_WPA_VERSION_1;
 970
 971         if (wpa_versions & IW_AUTH_WPA_VERSION_WPA2)
 972                 wdev->wext.connect.crypto.wpa_versions |=
 973                         NL80211_WPA_VERSION_2;
 974
 975         return 0;
 976 }
 977
 978 static int cfg80211_set_cipher_group(struct wireless_dev *wdev, u32 cipher)
 979 {
 980         if (cipher & IW_AUTH_CIPHER_WEP40)
 981                 wdev->wext.connect.crypto.cipher_group =
 982                         WLAN_CIPHER_SUITE_WEP40;
 983         else if (cipher & IW_AUTH_CIPHER_WEP104)
 984                 wdev->wext.connect.crypto.cipher_group =
 985                         WLAN_CIPHER_SUITE_WEP104;
 986         else if (cipher & IW_AUTH_CIPHER_TKIP)
 987                 wdev->wext.connect.crypto.cipher_group =
 988                         WLAN_CIPHER_SUITE_TKIP;
 989         else if (cipher & IW_AUTH_CIPHER_CCMP)
 990                 wdev->wext.connect.crypto.cipher_group =
 991                         WLAN_CIPHER_SUITE_CCMP;
 992         else if (cipher & IW_AUTH_CIPHER_AES_CMAC)
 993                 wdev->wext.connect.crypto.cipher_group =
 994                         WLAN_CIPHER_SUITE_AES_CMAC;
 995         else if (cipher & IW_AUTH_CIPHER_NONE)
 996                 wdev->wext.connect.crypto.cipher_group = 0;
 997         else
 998                 return -EINVAL;
 999
1000         return 0;
1001 }
1002
1003 static int cfg80211_set_cipher_pairwise(struct wireless_dev *wdev, u32 cipher)
1004 {
1005         int nr_ciphers = 0;
1006         u32 *ciphers_pairwise = wdev->wext.connect.crypto.ciphers_pairwise;
1007
1008         if (cipher & IW_AUTH_CIPHER_WEP40) {
1009                 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_WEP40;
1010                 nr_ciphers++;
1011         }
1012
1013         if (cipher & IW_AUTH_CIPHER_WEP104) {
1014                 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_WEP104;
1015                 nr_ciphers++;
1016         }
1017
1018         if (cipher & IW_AUTH_CIPHER_TKIP) {
1019                 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_TKIP;
1020                 nr_ciphers++;
1021         }
1022
1023         if (cipher & IW_AUTH_CIPHER_CCMP) {
1024                 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_CCMP;
1025                 nr_ciphers++;
1026         }
1027
1028         if (cipher & IW_AUTH_CIPHER_AES_CMAC) {
1029                 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_AES_CMAC;
1030                 nr_ciphers++;
1031         }
1032
1033         BUILD_BUG_ON(NL80211_MAX_NR_CIPHER_SUITES < 5);
1034
1035         wdev->wext.connect.crypto.n_ciphers_pairwise = nr_ciphers;
1036
1037         return 0;
1038 }
1039
1040
1041 static int cfg80211_set_key_mgt(struct wireless_dev *wdev, u32 key_mgt)
1042 {
1043         int nr_akm_suites = 0;
1044
1045         if (key_mgt & ~(IW_AUTH_KEY_MGMT_802_1X |
1046                         IW_AUTH_KEY_MGMT_PSK))
1047                 return -EINVAL;
1048
1049         if (key_mgt & IW_AUTH_KEY_MGMT_802_1X) {
1050                 wdev->wext.connect.crypto.akm_suites[nr_akm_suites] =
1051                         WLAN_AKM_SUITE_8021X;
1052                 nr_akm_suites++;
1053         }
1054
1055         if (key_mgt & IW_AUTH_KEY_MGMT_PSK) {
1056                 wdev->wext.connect.crypto.akm_suites[nr_akm_suites] =
1057                         WLAN_AKM_SUITE_PSK;
1058                 nr_akm_suites++;
1059         }
1060
1061         wdev->wext.connect.crypto.n_akm_suites = nr_akm_suites;
1062
1063         return 0;
1064 }
1065
1066 static int cfg80211_wext_siwauth(struct net_device *dev,
1067                                  struct iw_request_info *info,
1068                                  struct iw_param *data, char *extra)
1069 {
1070         struct wireless_dev *wdev = dev->ieee80211_ptr;
1071
1072         if (wdev->iftype != NL80211_IFTYPE_STATION)
1073                 return -EOPNOTSUPP;
1074
1075         switch (data->flags & IW_AUTH_INDEX) {
1076         case IW_AUTH_PRIVACY_INVOKED:
1077                 wdev->wext.connect.privacy = data->value;
1078                 return 0;
1079         case IW_AUTH_WPA_VERSION:
1080                 return cfg80211_set_wpa_version(wdev, data->value);
1081         case IW_AUTH_CIPHER_GROUP:
1082                 return cfg80211_set_cipher_group(wdev, data->value);
1083         case IW_AUTH_KEY_MGMT:
1084                 return cfg80211_set_key_mgt(wdev, data->value);
1085         case IW_AUTH_CIPHER_PAIRWISE:
1086                 return cfg80211_set_cipher_pairwise(wdev, data->value);
1087         case IW_AUTH_80211_AUTH_ALG:
1088                 return cfg80211_set_auth_alg(wdev, data->value);
1089         case IW_AUTH_WPA_ENABLED:
1090         case IW_AUTH_RX_UNENCRYPTED_EAPOL:
1091         case IW_AUTH_DROP_UNENCRYPTED:
1092         case IW_AUTH_MFP:
1093                 return 0;
1094         default:
1095                 return -EOPNOTSUPP;
1096         }
1097 }
1098
1099 static int cfg80211_wext_giwauth(struct net_device *dev,
1100                                  struct iw_request_info *info,
1101                                  struct iw_param *data, char *extra)
1102 {
1103         /* XXX: what do we need? */
1104
1105         return -EOPNOTSUPP;
1106 }
1107
1108 static int cfg80211_wext_siwpower(struct net_device *dev,
1109                                   struct iw_request_info *info,
1110                                   struct iw_param *wrq, char *extra)
1111 {
1112         struct wireless_dev *wdev = dev->ieee80211_ptr;
1113         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1114         bool ps = wdev->ps;
1115         int timeout = wdev->ps_timeout;
1116         int err;
1117
1118         if (wdev->iftype != NL80211_IFTYPE_STATION)
1119                 return -EINVAL;
1120
1121         if (!rdev->ops->set_power_mgmt)
1122                 return -EOPNOTSUPP;
1123
1124         if (wrq->disabled) {
1125                 ps = false;
1126         } else {
1127                 switch (wrq->flags & IW_POWER_MODE) {
1128                 case IW_POWER_ON:       /* If not specified */
1129                 case IW_POWER_MODE:     /* If set all mask */
1130                 case IW_POWER_ALL_R:    /* If explicitely state all */
1131                         ps = true;
1132                         break;
1133                 default:                /* Otherwise we ignore */
1134                         return -EINVAL;
1135                 }
1136
1137                 if (wrq->flags & ~(IW_POWER_MODE | IW_POWER_TIMEOUT))
1138                         return -EINVAL;
1139
1140                 if (wrq->flags & IW_POWER_TIMEOUT)
1141                         timeout = wrq->value / 1000;
1142         }
1143
1144         err = rdev->ops->set_power_mgmt(wdev->wiphy, dev, ps, timeout);
1145         if (err)
1146                 return err;
1147
1148         wdev->ps = ps;
1149         wdev->ps_timeout = timeout;
1150
1151         return 0;
1152
1153 }
1154
1155 static int cfg80211_wext_giwpower(struct net_device *dev,
1156                                   struct iw_request_info *info,
1157                                   struct iw_param *wrq, char *extra)
1158 {
1159         struct wireless_dev *wdev = dev->ieee80211_ptr;
1160
1161         wrq->disabled = !wdev->ps;
1162
1163         return 0;
1164 }
1165
1166 static int cfg80211_wds_wext_siwap(struct net_device *dev,
1167                                    struct iw_request_info *info,
1168                                    struct sockaddr *addr, char *extra)
1169 {
1170         struct wireless_dev *wdev = dev->ieee80211_ptr;
1171         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1172         int err;
1173
1174         if (WARN_ON(wdev->iftype != NL80211_IFTYPE_WDS))
1175                 return -EINVAL;
1176
1177         if (addr->sa_family != ARPHRD_ETHER)
1178                 return -EINVAL;
1179
1180         if (netif_running(dev))
1181                 return -EBUSY;
1182
1183         if (!rdev->ops->set_wds_peer)
1184                 return -EOPNOTSUPP;
1185
1186         err = rdev->ops->set_wds_peer(wdev->wiphy, dev, (u8 *) &addr->sa_data);
1187         if (err)
1188                 return err;
1189
1190         memcpy(&wdev->wext.bssid, (u8 *) &addr->sa_data, ETH_ALEN);
1191
1192         return 0;
1193 }
1194
1195 static int cfg80211_wds_wext_giwap(struct net_device *dev,
1196                                    struct iw_request_info *info,
1197                                    struct sockaddr *addr, char *extra)
1198 {
1199         struct wireless_dev *wdev = dev->ieee80211_ptr;
1200
1201         if (WARN_ON(wdev->iftype != NL80211_IFTYPE_WDS))
1202                 return -EINVAL;
1203
1204         addr->sa_family = ARPHRD_ETHER;
1205         memcpy(&addr->sa_data, wdev->wext.bssid, ETH_ALEN);
1206
1207         return 0;
1208 }
1209
1210 static int cfg80211_wext_siwrate(struct net_device *dev,
1211                                  struct iw_request_info *info,
1212                                  struct iw_param *rate, char *extra)
1213 {
1214         struct wireless_dev *wdev = dev->ieee80211_ptr;
1215         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1216         struct cfg80211_bitrate_mask mask;
1217         u32 fixed, maxrate;
1218         struct ieee80211_supported_band *sband;
1219         int band, ridx;
1220         bool match = false;
1221
1222         if (!rdev->ops->set_bitrate_mask)
1223                 return -EOPNOTSUPP;
1224
1225         memset(&mask, 0, sizeof(mask));
1226         fixed = 0;
1227         maxrate = (u32)-1;
1228
1229         if (rate->value < 0) {
1230                 /* nothing */
1231         } else if (rate->fixed) {
1232                 fixed = rate->value / 100000;
1233         } else {
1234                 maxrate = rate->value / 100000;
1235         }
1236
1237         for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
1238                 sband = wdev->wiphy->bands[band];
1239                 if (sband == NULL)
1240                         continue;
1241                 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
1242                         struct ieee80211_rate *srate = &sband->bitrates[ridx];
1243                         if (fixed == srate->bitrate) {
1244                                 mask.control[band].legacy = 1 << ridx;
1245                                 match = true;
1246                                 break;
1247                         }
1248                         if (srate->bitrate <= maxrate) {
1249                                 mask.control[band].legacy |= 1 << ridx;
1250                                 match = true;
1251                         }
1252                 }
1253         }
1254
1255         if (!match)
1256                 return -EINVAL;
1257
1258         return rdev->ops->set_bitrate_mask(wdev->wiphy, dev, NULL, &mask);
1259 }
1260
1261 static int cfg80211_wext_giwrate(struct net_device *dev,
1262                                  struct iw_request_info *info,
1263                                  struct iw_param *rate, char *extra)
1264 {
1265         struct wireless_dev *wdev = dev->ieee80211_ptr;
1266         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1267         /* we are under RTNL - globally locked - so can use a static struct */
1268         static struct station_info sinfo;
1269         u8 addr[ETH_ALEN];
1270         int err;
1271
1272         if (wdev->iftype != NL80211_IFTYPE_STATION)
1273                 return -EOPNOTSUPP;
1274
1275         if (!rdev->ops->get_station)
1276                 return -EOPNOTSUPP;
1277
1278         err = 0;
1279         wdev_lock(wdev);
1280         if (wdev->current_bss)
1281                 memcpy(addr, wdev->current_bss->pub.bssid, ETH_ALEN);
1282         else
1283                 err = -EOPNOTSUPP;
1284         wdev_unlock(wdev);
1285         if (err)
1286                 return err;
1287
1288         err = rdev->ops->get_station(&rdev->wiphy, dev, addr, &sinfo);
1289         if (err)
1290                 return err;
1291
1292         if (!(sinfo.filled & STATION_INFO_TX_BITRATE))
1293                 return -EOPNOTSUPP;
1294
1295         rate->value = 100000 * cfg80211_calculate_bitrate(&sinfo.txrate);
1296
1297         return 0;
1298 }
1299
1300 /* Get wireless statistics.  Called by /proc/net/wireless and by SIOCGIWSTATS */
1301 static struct iw_statistics *cfg80211_wireless_stats(struct net_device *dev)
1302 {
1303         struct wireless_dev *wdev = dev->ieee80211_ptr;
1304         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1305         /* we are under RTNL - globally locked - so can use static structs */
1306         static struct iw_statistics wstats;
1307         static struct station_info sinfo;
1308         u8 bssid[ETH_ALEN];
1309
1310         if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION)
1311                 return NULL;
1312
1313         if (!rdev->ops->get_station)
1314                 return NULL;
1315
1316         /* Grab BSSID of current BSS, if any */
1317         wdev_lock(wdev);
1318         if (!wdev->current_bss) {
1319                 wdev_unlock(wdev);
1320                 return NULL;
1321         }
1322         memcpy(bssid, wdev->current_bss->pub.bssid, ETH_ALEN);
1323         wdev_unlock(wdev);
1324
1325         if (rdev->ops->get_station(&rdev->wiphy, dev, bssid, &sinfo))
1326                 return NULL;
1327
1328         memset(&wstats, 0, sizeof(wstats));
1329
1330         switch (rdev->wiphy.signal_type) {
1331         case CFG80211_SIGNAL_TYPE_MBM:
1332                 if (sinfo.filled & STATION_INFO_SIGNAL) {
1333                         int sig = sinfo.signal;
1334                         wstats.qual.updated |= IW_QUAL_LEVEL_UPDATED;
1335                         wstats.qual.updated |= IW_QUAL_QUAL_UPDATED;
1336                         wstats.qual.updated |= IW_QUAL_DBM;
1337                         wstats.qual.level = sig;
1338                         if (sig < -110)
1339                                 sig = -110;
1340                         else if (sig > -40)
1341                                 sig = -40;
1342                         wstats.qual.qual = sig + 110;
1343                         break;
1344                 }
1345         case CFG80211_SIGNAL_TYPE_UNSPEC:
1346                 if (sinfo.filled & STATION_INFO_SIGNAL) {
1347                         wstats.qual.updated |= IW_QUAL_LEVEL_UPDATED;
1348                         wstats.qual.updated |= IW_QUAL_QUAL_UPDATED;
1349                         wstats.qual.level = sinfo.signal;
1350                         wstats.qual.qual = sinfo.signal;
1351                         break;
1352                 }
1353         default:
1354                 wstats.qual.updated |= IW_QUAL_LEVEL_INVALID;
1355                 wstats.qual.updated |= IW_QUAL_QUAL_INVALID;
1356         }
1357
1358         wstats.qual.updated |= IW_QUAL_NOISE_INVALID;
1359         if (sinfo.filled & STATION_INFO_RX_DROP_MISC)
1360                 wstats.discard.misc = sinfo.rx_dropped_misc;
1361         if (sinfo.filled & STATION_INFO_TX_FAILED)
1362                 wstats.discard.retries = sinfo.tx_failed;
1363
1364         return &wstats;
1365 }
1366
1367 static int cfg80211_wext_siwap(struct net_device *dev,
1368                                struct iw_request_info *info,
1369                                struct sockaddr *ap_addr, char *extra)
1370 {
1371         struct wireless_dev *wdev = dev->ieee80211_ptr;
1372
1373         switch (wdev->iftype) {
1374         case NL80211_IFTYPE_ADHOC:
1375                 return cfg80211_ibss_wext_siwap(dev, info, ap_addr, extra);
1376         case NL80211_IFTYPE_STATION:
1377                 return cfg80211_mgd_wext_siwap(dev, info, ap_addr, extra);
1378         case NL80211_IFTYPE_WDS:
1379                 return cfg80211_wds_wext_siwap(dev, info, ap_addr, extra);
1380         default:
1381                 return -EOPNOTSUPP;
1382         }
1383 }
1384
1385 static int cfg80211_wext_giwap(struct net_device *dev,
1386                                struct iw_request_info *info,
1387                                struct sockaddr *ap_addr, char *extra)
1388 {
1389         struct wireless_dev *wdev = dev->ieee80211_ptr;
1390
1391         switch (wdev->iftype) {
1392         case NL80211_IFTYPE_ADHOC:
1393                 return cfg80211_ibss_wext_giwap(dev, info, ap_addr, extra);
1394         case NL80211_IFTYPE_STATION:
1395                 return cfg80211_mgd_wext_giwap(dev, info, ap_addr, extra);
1396         case NL80211_IFTYPE_WDS:
1397                 return cfg80211_wds_wext_giwap(dev, info, ap_addr, extra);
1398         default:
1399                 return -EOPNOTSUPP;
1400         }
1401 }
1402
1403 static int cfg80211_wext_siwessid(struct net_device *dev,
1404                                   struct iw_request_info *info,
1405                                   struct iw_point *data, char *ssid)
1406 {
1407         struct wireless_dev *wdev = dev->ieee80211_ptr;
1408
1409         switch (wdev->iftype) {
1410         case NL80211_IFTYPE_ADHOC:
1411                 return cfg80211_ibss_wext_siwessid(dev, info, data, ssid);
1412         case NL80211_IFTYPE_STATION:
1413                 return cfg80211_mgd_wext_siwessid(dev, info, data, ssid);
1414         default:
1415                 return -EOPNOTSUPP;
1416         }
1417 }
1418
1419 static int cfg80211_wext_giwessid(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         data->flags = 0;
1426         data->length = 0;
1427
1428         switch (wdev->iftype) {
1429         case NL80211_IFTYPE_ADHOC:
1430                 return cfg80211_ibss_wext_giwessid(dev, info, data, ssid);
1431         case NL80211_IFTYPE_STATION:
1432                 return cfg80211_mgd_wext_giwessid(dev, info, data, ssid);
1433         default:
1434                 return -EOPNOTSUPP;
1435         }
1436 }
1437
1438 static int cfg80211_wext_siwpmksa(struct net_device *dev,
1439                                   struct iw_request_info *info,
1440                                   struct iw_point *data, char *extra)
1441 {
1442         struct wireless_dev *wdev = dev->ieee80211_ptr;
1443         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1444         struct cfg80211_pmksa cfg_pmksa;
1445         struct iw_pmksa *pmksa = (struct iw_pmksa *)extra;
1446
1447         memset(&cfg_pmksa, 0, sizeof(struct cfg80211_pmksa));
1448
1449         if (wdev->iftype != NL80211_IFTYPE_STATION)
1450                 return -EINVAL;
1451
1452         cfg_pmksa.bssid = pmksa->bssid.sa_data;
1453         cfg_pmksa.pmkid = pmksa->pmkid;
1454
1455         switch (pmksa->cmd) {
1456         case IW_PMKSA_ADD:
1457                 if (!rdev->ops->set_pmksa)
1458                         return -EOPNOTSUPP;
1459
1460                 return rdev->ops->set_pmksa(&rdev->wiphy, dev, &cfg_pmksa);
1461
1462         case IW_PMKSA_REMOVE:
1463                 if (!rdev->ops->del_pmksa)
1464                         return -EOPNOTSUPP;
1465
1466                 return rdev->ops->del_pmksa(&rdev->wiphy, dev, &cfg_pmksa);
1467
1468         case IW_PMKSA_FLUSH:
1469                 if (!rdev->ops->flush_pmksa)
1470                         return -EOPNOTSUPP;
1471
1472                 return rdev->ops->flush_pmksa(&rdev->wiphy, dev);
1473
1474         default:
1475                 return -EOPNOTSUPP;
1476         }
1477 }
1478
1479 static const iw_handler cfg80211_handlers[] = {
1480         [IW_IOCTL_IDX(SIOCGIWNAME)]     = (iw_handler) cfg80211_wext_giwname,
1481         [IW_IOCTL_IDX(SIOCSIWFREQ)]     = (iw_handler) cfg80211_wext_siwfreq,
1482         [IW_IOCTL_IDX(SIOCGIWFREQ)]     = (iw_handler) cfg80211_wext_giwfreq,
1483         [IW_IOCTL_IDX(SIOCSIWMODE)]     = (iw_handler) cfg80211_wext_siwmode,
1484         [IW_IOCTL_IDX(SIOCGIWMODE)]     = (iw_handler) cfg80211_wext_giwmode,
1485         [IW_IOCTL_IDX(SIOCGIWRANGE)]    = (iw_handler) cfg80211_wext_giwrange,
1486         [IW_IOCTL_IDX(SIOCSIWAP)]       = (iw_handler) cfg80211_wext_siwap,
1487         [IW_IOCTL_IDX(SIOCGIWAP)]       = (iw_handler) cfg80211_wext_giwap,
1488         [IW_IOCTL_IDX(SIOCSIWMLME)]     = (iw_handler) cfg80211_wext_siwmlme,
1489         [IW_IOCTL_IDX(SIOCSIWSCAN)]     = (iw_handler) cfg80211_wext_siwscan,
1490         [IW_IOCTL_IDX(SIOCGIWSCAN)]     = (iw_handler) cfg80211_wext_giwscan,
1491         [IW_IOCTL_IDX(SIOCSIWESSID)]    = (iw_handler) cfg80211_wext_siwessid,
1492         [IW_IOCTL_IDX(SIOCGIWESSID)]    = (iw_handler) cfg80211_wext_giwessid,
1493         [IW_IOCTL_IDX(SIOCSIWRATE)]     = (iw_handler) cfg80211_wext_siwrate,
1494         [IW_IOCTL_IDX(SIOCGIWRATE)]     = (iw_handler) cfg80211_wext_giwrate,
1495         [IW_IOCTL_IDX(SIOCSIWRTS)]      = (iw_handler) cfg80211_wext_siwrts,
1496         [IW_IOCTL_IDX(SIOCGIWRTS)]      = (iw_handler) cfg80211_wext_giwrts,
1497         [IW_IOCTL_IDX(SIOCSIWFRAG)]     = (iw_handler) cfg80211_wext_siwfrag,
1498         [IW_IOCTL_IDX(SIOCGIWFRAG)]     = (iw_handler) cfg80211_wext_giwfrag,
1499         [IW_IOCTL_IDX(SIOCSIWTXPOW)]    = (iw_handler) cfg80211_wext_siwtxpower,
1500         [IW_IOCTL_IDX(SIOCGIWTXPOW)]    = (iw_handler) cfg80211_wext_giwtxpower,
1501         [IW_IOCTL_IDX(SIOCSIWRETRY)]    = (iw_handler) cfg80211_wext_siwretry,
1502         [IW_IOCTL_IDX(SIOCGIWRETRY)]    = (iw_handler) cfg80211_wext_giwretry,
1503         [IW_IOCTL_IDX(SIOCSIWENCODE)]   = (iw_handler) cfg80211_wext_siwencode,
1504         [IW_IOCTL_IDX(SIOCGIWENCODE)]   = (iw_handler) cfg80211_wext_giwencode,
1505         [IW_IOCTL_IDX(SIOCSIWPOWER)]    = (iw_handler) cfg80211_wext_siwpower,
1506         [IW_IOCTL_IDX(SIOCGIWPOWER)]    = (iw_handler) cfg80211_wext_giwpower,
1507         [IW_IOCTL_IDX(SIOCSIWGENIE)]    = (iw_handler) cfg80211_wext_siwgenie,
1508         [IW_IOCTL_IDX(SIOCSIWAUTH)]     = (iw_handler) cfg80211_wext_siwauth,
1509         [IW_IOCTL_IDX(SIOCGIWAUTH)]     = (iw_handler) cfg80211_wext_giwauth,
1510         [IW_IOCTL_IDX(SIOCSIWENCODEEXT)]= (iw_handler) cfg80211_wext_siwencodeext,
1511         [IW_IOCTL_IDX(SIOCSIWPMKSA)]    = (iw_handler) cfg80211_wext_siwpmksa,
1512 };
1513
1514 const struct iw_handler_def cfg80211_wext_handler = {
1515         .num_standard           = ARRAY_SIZE(cfg80211_handlers),
1516         .standard               = cfg80211_handlers,
1517         .get_wireless_stats = cfg80211_wireless_stats,
1518 };