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/export.h>
  12 #include <linux/wireless.h>
  13 #include <linux/nl80211.h>
  14 #include <linux/if_arp.h>
  15 #include <linux/etherdevice.h>
  16 #include <linux/slab.h>
  17 #include <net/iw_handler.h>
  18 #include <net/cfg80211.h>
  19 #include <net/cfg80211-wext.h>
  20 #include "wext-compat.h"
  21 #include "core.h"
  22 #include "rdev-ops.h"
  23
  24 int cfg80211_wext_giwname(struct net_device *dev,
  25                           struct iw_request_info *info,
  26                           char *name, char *extra)
  27 {
  28         strcpy(name, "IEEE 802.11");
  29         return 0;
  30 }
  31 EXPORT_WEXT_HANDLER(cfg80211_wext_giwname);
  32
  33 int cfg80211_wext_siwmode(struct net_device *dev, struct iw_request_info *info,
  34                           u32 *mode, char *extra)
  35 {
  36         struct wireless_dev *wdev = dev->ieee80211_ptr;
  37         struct cfg80211_registered_device *rdev;
  38         struct vif_params vifparams;
  39         enum nl80211_iftype type;
  40
  41         rdev = wiphy_to_rdev(wdev->wiphy);
  42
  43         switch (*mode) {
  44         case IW_MODE_INFRA:
  45                 type = NL80211_IFTYPE_STATION;
  46                 break;
  47         case IW_MODE_ADHOC:
  48                 type = NL80211_IFTYPE_ADHOC;
  49                 break;
  50         case IW_MODE_REPEAT:
  51                 type = NL80211_IFTYPE_WDS;
  52                 break;
  53         case IW_MODE_MONITOR:
  54                 type = NL80211_IFTYPE_MONITOR;
  55                 break;
  56         default:
  57                 return -EINVAL;
  58         }
  59
  60         if (type == wdev->iftype)
  61                 return 0;
  62
  63         memset(&vifparams, 0, sizeof(vifparams));
  64
  65         return cfg80211_change_iface(rdev, dev, type, NULL, &vifparams);
  66 }
  67 EXPORT_WEXT_HANDLER(cfg80211_wext_siwmode);
  68
  69 int cfg80211_wext_giwmode(struct net_device *dev, struct iw_request_info *info,
  70                           u32 *mode, char *extra)
  71 {
  72         struct wireless_dev *wdev = dev->ieee80211_ptr;
  73
  74         if (!wdev)
  75                 return -EOPNOTSUPP;
  76
  77         switch (wdev->iftype) {
  78         case NL80211_IFTYPE_AP:
  79                 *mode = IW_MODE_MASTER;
  80                 break;
  81         case NL80211_IFTYPE_STATION:
  82                 *mode = IW_MODE_INFRA;
  83                 break;
  84         case NL80211_IFTYPE_ADHOC:
  85                 *mode = IW_MODE_ADHOC;
  86                 break;
  87         case NL80211_IFTYPE_MONITOR:
  88                 *mode = IW_MODE_MONITOR;
  89                 break;
  90         case NL80211_IFTYPE_WDS:
  91                 *mode = IW_MODE_REPEAT;
  92                 break;
  93         case NL80211_IFTYPE_AP_VLAN:
  94                 *mode = IW_MODE_SECOND;         /* FIXME */
  95                 break;
  96         default:
  97                 *mode = IW_MODE_AUTO;
  98                 break;
  99         }
 100         return 0;
 101 }
 102 EXPORT_WEXT_HANDLER(cfg80211_wext_giwmode);
 103
 104
 105 int cfg80211_wext_giwrange(struct net_device *dev,
 106                            struct iw_request_info *info,
 107                            struct iw_point *data, char *extra)
 108 {
 109         struct wireless_dev *wdev = dev->ieee80211_ptr;
 110         struct iw_range *range = (struct iw_range *) extra;
 111         enum nl80211_band band;
 112         int i, c = 0;
 113
 114         if (!wdev)
 115                 return -EOPNOTSUPP;
 116
 117         data->length = sizeof(struct iw_range);
 118         memset(range, 0, sizeof(struct iw_range));
 119
 120         range->we_version_compiled = WIRELESS_EXT;
 121         range->we_version_source = 21;
 122         range->retry_capa = IW_RETRY_LIMIT;
 123         range->retry_flags = IW_RETRY_LIMIT;
 124         range->min_retry = 0;
 125         range->max_retry = 255;
 126         range->min_rts = 0;
 127         range->max_rts = 2347;
 128         range->min_frag = 256;
 129         range->max_frag = 2346;
 130
 131         range->max_encoding_tokens = 4;
 132
 133         range->max_qual.updated = IW_QUAL_NOISE_INVALID;
 134
 135         switch (wdev->wiphy->signal_type) {
 136         case CFG80211_SIGNAL_TYPE_NONE:
 137                 break;
 138         case CFG80211_SIGNAL_TYPE_MBM:
 139                 range->max_qual.level = (u8)-110;
 140                 range->max_qual.qual = 70;
 141                 range->avg_qual.qual = 35;
 142                 range->max_qual.updated |= IW_QUAL_DBM;
 143                 range->max_qual.updated |= IW_QUAL_QUAL_UPDATED;
 144                 range->max_qual.updated |= IW_QUAL_LEVEL_UPDATED;
 145                 break;
 146         case CFG80211_SIGNAL_TYPE_UNSPEC:
 147                 range->max_qual.level = 100;
 148                 range->max_qual.qual = 100;
 149                 range->avg_qual.qual = 50;
 150                 range->max_qual.updated |= IW_QUAL_QUAL_UPDATED;
 151                 range->max_qual.updated |= IW_QUAL_LEVEL_UPDATED;
 152                 break;
 153         }
 154
 155         range->avg_qual.level = range->max_qual.level / 2;
 156         range->avg_qual.noise = range->max_qual.noise / 2;
 157         range->avg_qual.updated = range->max_qual.updated;
 158
 159         for (i = 0; i < wdev->wiphy->n_cipher_suites; i++) {
 160                 switch (wdev->wiphy->cipher_suites[i]) {
 161                 case WLAN_CIPHER_SUITE_TKIP:
 162                         range->enc_capa |= (IW_ENC_CAPA_CIPHER_TKIP |
 163                                             IW_ENC_CAPA_WPA);
 164                         break;
 165
 166                 case WLAN_CIPHER_SUITE_CCMP:
 167                         range->enc_capa |= (IW_ENC_CAPA_CIPHER_CCMP |
 168                                             IW_ENC_CAPA_WPA2);
 169                         break;
 170
 171                 case WLAN_CIPHER_SUITE_WEP40:
 172                         range->encoding_size[range->num_encoding_sizes++] =
 173                                 WLAN_KEY_LEN_WEP40;
 174                         break;
 175
 176                 case WLAN_CIPHER_SUITE_WEP104:
 177                         range->encoding_size[range->num_encoding_sizes++] =
 178                                 WLAN_KEY_LEN_WEP104;
 179                         break;
 180                 }
 181         }
 182
 183         for (band = 0; band < NUM_NL80211_BANDS; band ++) {
 184                 struct ieee80211_supported_band *sband;
 185
 186                 sband = wdev->wiphy->bands[band];
 187
 188                 if (!sband)
 189                         continue;
 190
 191                 for (i = 0; i < sband->n_channels && c < IW_MAX_FREQUENCIES; i++) {
 192                         struct ieee80211_channel *chan = &sband->channels[i];
 193
 194                         if (!(chan->flags & IEEE80211_CHAN_DISABLED)) {
 195                                 range->freq[c].i =
 196                                         ieee80211_frequency_to_channel(
 197                                                 chan->center_freq);
 198                                 range->freq[c].m = chan->center_freq;
 199                                 range->freq[c].e = 6;
 200                                 c++;
 201                         }
 202                 }
 203         }
 204         range->num_channels = c;
 205         range->num_frequency = c;
 206
 207         IW_EVENT_CAPA_SET_KERNEL(range->event_capa);
 208         IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWAP);
 209         IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWSCAN);
 210
 211         if (wdev->wiphy->max_scan_ssids > 0)
 212                 range->scan_capa |= IW_SCAN_CAPA_ESSID;
 213
 214         return 0;
 215 }
 216 EXPORT_WEXT_HANDLER(cfg80211_wext_giwrange);
 217
 218
 219 /**
 220  * cfg80211_wext_freq - get wext frequency for non-"auto"
 221  * @dev: the net device
 222  * @freq: the wext freq encoding
 223  *
 224  * Returns a frequency, or a negative error code, or 0 for auto.
 225  */
 226 int cfg80211_wext_freq(struct iw_freq *freq)
 227 {
 228         /*
 229          * Parse frequency - return 0 for auto and
 230          * -EINVAL for impossible things.
 231          */
 232         if (freq->e == 0) {
 233                 enum nl80211_band band = NL80211_BAND_2GHZ;
 234                 if (freq->m < 0)
 235                         return 0;
 236                 if (freq->m > 14)
 237                         band = NL80211_BAND_5GHZ;
 238                 return ieee80211_channel_to_frequency(freq->m, band);
 239         } else {
 240                 int i, div = 1000000;
 241                 for (i = 0; i < freq->e; i++)
 242                         div /= 10;
 243                 if (div <= 0)
 244                         return -EINVAL;
 245                 return freq->m / div;
 246         }
 247 }
 248
 249 int cfg80211_wext_siwrts(struct net_device *dev,
 250                          struct iw_request_info *info,
 251                          struct iw_param *rts, char *extra)
 252 {
 253         struct wireless_dev *wdev = dev->ieee80211_ptr;
 254         struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
 255         u32 orts = wdev->wiphy->rts_threshold;
 256         int err;
 257
 258         if (rts->disabled || !rts->fixed)
 259                 wdev->wiphy->rts_threshold = (u32) -1;
 260         else if (rts->value < 0)
 261                 return -EINVAL;
 262         else
 263                 wdev->wiphy->rts_threshold = rts->value;
 264
 265         err = rdev_set_wiphy_params(rdev, WIPHY_PARAM_RTS_THRESHOLD);
 266         if (err)
 267                 wdev->wiphy->rts_threshold = orts;
 268
 269         return err;
 270 }
 271 EXPORT_WEXT_HANDLER(cfg80211_wext_siwrts);
 272
 273 int cfg80211_wext_giwrts(struct net_device *dev,
 274                          struct iw_request_info *info,
 275                          struct iw_param *rts, char *extra)
 276 {
 277         struct wireless_dev *wdev = dev->ieee80211_ptr;
 278
 279         rts->value = wdev->wiphy->rts_threshold;
 280         rts->disabled = rts->value == (u32) -1;
 281         rts->fixed = 1;
 282
 283         return 0;
 284 }
 285 EXPORT_WEXT_HANDLER(cfg80211_wext_giwrts);
 286
 287 int cfg80211_wext_siwfrag(struct net_device *dev,
 288                           struct iw_request_info *info,
 289                           struct iw_param *frag, char *extra)
 290 {
 291         struct wireless_dev *wdev = dev->ieee80211_ptr;
 292         struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
 293         u32 ofrag = wdev->wiphy->frag_threshold;
 294         int err;
 295
 296         if (frag->disabled || !frag->fixed)
 297                 wdev->wiphy->frag_threshold = (u32) -1;
 298         else if (frag->value < 256)
 299                 return -EINVAL;
 300         else {
 301                 /* Fragment length must be even, so strip LSB. */
 302                 wdev->wiphy->frag_threshold = frag->value & ~0x1;
 303         }
 304
 305         err = rdev_set_wiphy_params(rdev, WIPHY_PARAM_FRAG_THRESHOLD);
 306         if (err)
 307                 wdev->wiphy->frag_threshold = ofrag;
 308
 309         return err;
 310 }
 311 EXPORT_WEXT_HANDLER(cfg80211_wext_siwfrag);
 312
 313 int cfg80211_wext_giwfrag(struct net_device *dev,
 314                           struct iw_request_info *info,
 315                           struct iw_param *frag, char *extra)
 316 {
 317         struct wireless_dev *wdev = dev->ieee80211_ptr;
 318
 319         frag->value = wdev->wiphy->frag_threshold;
 320         frag->disabled = frag->value == (u32) -1;
 321         frag->fixed = 1;
 322
 323         return 0;
 324 }
 325 EXPORT_WEXT_HANDLER(cfg80211_wext_giwfrag);
 326
 327 static int cfg80211_wext_siwretry(struct net_device *dev,
 328                                   struct iw_request_info *info,
 329                                   struct iw_param *retry, char *extra)
 330 {
 331         struct wireless_dev *wdev = dev->ieee80211_ptr;
 332         struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
 333         u32 changed = 0;
 334         u8 olong = wdev->wiphy->retry_long;
 335         u8 oshort = wdev->wiphy->retry_short;
 336         int err;
 337
 338         if (retry->disabled || retry->value < 1 || retry->value > 255 ||
 339             (retry->flags & IW_RETRY_TYPE) != IW_RETRY_LIMIT)
 340                 return -EINVAL;
 341
 342         if (retry->flags & IW_RETRY_LONG) {
 343                 wdev->wiphy->retry_long = retry->value;
 344                 changed |= WIPHY_PARAM_RETRY_LONG;
 345         } else if (retry->flags & IW_RETRY_SHORT) {
 346                 wdev->wiphy->retry_short = retry->value;
 347                 changed |= WIPHY_PARAM_RETRY_SHORT;
 348         } else {
 349                 wdev->wiphy->retry_short = retry->value;
 350                 wdev->wiphy->retry_long = retry->value;
 351                 changed |= WIPHY_PARAM_RETRY_LONG;
 352                 changed |= WIPHY_PARAM_RETRY_SHORT;
 353         }
 354
 355         if (!changed)
 356                 return 0;
 357
 358         err = rdev_set_wiphy_params(rdev, changed);
 359         if (err) {
 360                 wdev->wiphy->retry_short = oshort;
 361                 wdev->wiphy->retry_long = olong;
 362         }
 363
 364         return err;
 365 }
 366
 367 int cfg80211_wext_giwretry(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
 373         retry->disabled = 0;
 374
 375         if (retry->flags == 0 || (retry->flags & IW_RETRY_SHORT)) {
 376                 /*
 377                  * First return short value, iwconfig will ask long value
 378                  * later if needed
 379                  */
 380                 retry->flags |= IW_RETRY_LIMIT | IW_RETRY_SHORT;
 381                 retry->value = wdev->wiphy->retry_short;
 382                 if (wdev->wiphy->retry_long == wdev->wiphy->retry_short)
 383                         retry->flags |= IW_RETRY_LONG;
 384
 385                 return 0;
 386         }
 387
 388         if (retry->flags & IW_RETRY_LONG) {
 389                 retry->flags = IW_RETRY_LIMIT | IW_RETRY_LONG;
 390                 retry->value = wdev->wiphy->retry_long;
 391         }
 392
 393         return 0;
 394 }
 395 EXPORT_WEXT_HANDLER(cfg80211_wext_giwretry);
 396
 397 static int __cfg80211_set_encryption(struct cfg80211_registered_device *rdev,
 398                                      struct net_device *dev, bool pairwise,
 399                                      const u8 *addr, bool remove, bool tx_key,
 400                                      int idx, struct key_params *params)
 401 {
 402         struct wireless_dev *wdev = dev->ieee80211_ptr;
 403         int err, i;
 404         bool rejoin = false;
 405
 406         if (pairwise && !addr)
 407                 return -EINVAL;
 408
 409         if (!wdev->wext.keys) {
 410                 wdev->wext.keys = kzalloc(sizeof(*wdev->wext.keys),
 411                                           GFP_KERNEL);
 412                 if (!wdev->wext.keys)
 413                         return -ENOMEM;
 414                 for (i = 0; i < 4; i++)
 415                         wdev->wext.keys->params[i].key =
 416                                 wdev->wext.keys->data[i];
 417         }
 418
 419         if (wdev->iftype != NL80211_IFTYPE_ADHOC &&
 420             wdev->iftype != NL80211_IFTYPE_STATION)
 421                 return -EOPNOTSUPP;
 422
 423         if (params->cipher == WLAN_CIPHER_SUITE_AES_CMAC) {
 424                 if (!wdev->current_bss)
 425                         return -ENOLINK;
 426
 427                 if (!rdev->ops->set_default_mgmt_key)
 428                         return -EOPNOTSUPP;
 429
 430                 if (idx < 4 || idx > 5)
 431                         return -EINVAL;
 432         } else if (idx < 0 || idx > 3)
 433                 return -EINVAL;
 434
 435         if (remove) {
 436                 err = 0;
 437                 if (wdev->current_bss) {
 438                         /*
 439                          * If removing the current TX key, we will need to
 440                          * join a new IBSS without the privacy bit clear.
 441                          */
 442                         if (idx == wdev->wext.default_key &&
 443                             wdev->iftype == NL80211_IFTYPE_ADHOC) {
 444                                 __cfg80211_leave_ibss(rdev, wdev->netdev, true);
 445                                 rejoin = true;
 446                         }
 447
 448                         if (!pairwise && addr &&
 449                             !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
 450                                 err = -ENOENT;
 451                         else
 452                                 err = rdev_del_key(rdev, dev, idx, pairwise,
 453                                                    addr);
 454                 }
 455                 wdev->wext.connect.privacy = false;
 456                 /*
 457                  * Applications using wireless extensions expect to be
 458                  * able to delete keys that don't exist, so allow that.
 459                  */
 460                 if (err == -ENOENT)
 461                         err = 0;
 462                 if (!err) {
 463                         if (!addr && idx < 4) {
 464                                 memset(wdev->wext.keys->data[idx], 0,
 465                                        sizeof(wdev->wext.keys->data[idx]));
 466                                 wdev->wext.keys->params[idx].key_len = 0;
 467                                 wdev->wext.keys->params[idx].cipher = 0;
 468                         }
 469                         if (idx == wdev->wext.default_key)
 470                                 wdev->wext.default_key = -1;
 471                         else if (idx == wdev->wext.default_mgmt_key)
 472                                 wdev->wext.default_mgmt_key = -1;
 473                 }
 474
 475                 if (!err && rejoin)
 476                         err = cfg80211_ibss_wext_join(rdev, wdev);
 477
 478                 return err;
 479         }
 480
 481         if (addr)
 482                 tx_key = false;
 483
 484         if (cfg80211_validate_key_settings(rdev, params, idx, pairwise, addr))
 485                 return -EINVAL;
 486
 487         err = 0;
 488         if (wdev->current_bss)
 489                 err = rdev_add_key(rdev, dev, idx, pairwise, addr, params);
 490         else if (params->cipher != WLAN_CIPHER_SUITE_WEP40 &&
 491                  params->cipher != WLAN_CIPHER_SUITE_WEP104)
 492                 return -EINVAL;
 493         if (err)
 494                 return err;
 495
 496         if (!addr) {
 497                 wdev->wext.keys->params[idx] = *params;
 498                 memcpy(wdev->wext.keys->data[idx],
 499                         params->key, params->key_len);
 500                 wdev->wext.keys->params[idx].key =
 501                         wdev->wext.keys->data[idx];
 502         }
 503
 504         if ((params->cipher == WLAN_CIPHER_SUITE_WEP40 ||
 505              params->cipher == WLAN_CIPHER_SUITE_WEP104) &&
 506             (tx_key || (!addr && wdev->wext.default_key == -1))) {
 507                 if (wdev->current_bss) {
 508                         /*
 509                          * If we are getting a new TX key from not having
 510                          * had one before we need to join a new IBSS with
 511                          * the privacy bit set.
 512                          */
 513                         if (wdev->iftype == NL80211_IFTYPE_ADHOC &&
 514                             wdev->wext.default_key == -1) {
 515                                 __cfg80211_leave_ibss(rdev, wdev->netdev, true);
 516                                 rejoin = true;
 517                         }
 518                         err = rdev_set_default_key(rdev, dev, idx, true, true);
 519                 }
 520                 if (!err) {
 521                         wdev->wext.default_key = idx;
 522                         if (rejoin)
 523                                 err = cfg80211_ibss_wext_join(rdev, wdev);
 524                 }
 525                 return err;
 526         }
 527
 528         if (params->cipher == WLAN_CIPHER_SUITE_AES_CMAC &&
 529             (tx_key || (!addr && wdev->wext.default_mgmt_key == -1))) {
 530                 if (wdev->current_bss)
 531                         err = rdev_set_default_mgmt_key(rdev, dev, idx);
 532                 if (!err)
 533                         wdev->wext.default_mgmt_key = idx;
 534                 return err;
 535         }
 536
 537         return 0;
 538 }
 539
 540 static int cfg80211_set_encryption(struct cfg80211_registered_device *rdev,
 541                                    struct net_device *dev, bool pairwise,
 542                                    const u8 *addr, bool remove, bool tx_key,
 543                                    int idx, struct key_params *params)
 544 {
 545         int err;
 546
 547         wdev_lock(dev->ieee80211_ptr);
 548         err = __cfg80211_set_encryption(rdev, dev, pairwise, addr,
 549                                         remove, tx_key, idx, params);
 550         wdev_unlock(dev->ieee80211_ptr);
 551
 552         return err;
 553 }
 554
 555 static int cfg80211_wext_siwencode(struct net_device *dev,
 556                                    struct iw_request_info *info,
 557                                    struct iw_point *erq, char *keybuf)
 558 {
 559         struct wireless_dev *wdev = dev->ieee80211_ptr;
 560         struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
 561         int idx, err;
 562         bool remove = false;
 563         struct key_params params;
 564
 565         if (wdev->iftype != NL80211_IFTYPE_STATION &&
 566             wdev->iftype != NL80211_IFTYPE_ADHOC)
 567                 return -EOPNOTSUPP;
 568
 569         /* no use -- only MFP (set_default_mgmt_key) is optional */
 570         if (!rdev->ops->del_key ||
 571             !rdev->ops->add_key ||
 572             !rdev->ops->set_default_key)
 573                 return -EOPNOTSUPP;
 574
 575         idx = erq->flags & IW_ENCODE_INDEX;
 576         if (idx == 0) {
 577                 idx = wdev->wext.default_key;
 578                 if (idx < 0)
 579                         idx = 0;
 580         } else if (idx < 1 || idx > 4)
 581                 return -EINVAL;
 582         else
 583                 idx--;
 584
 585         if (erq->flags & IW_ENCODE_DISABLED)
 586                 remove = true;
 587         else if (erq->length == 0) {
 588                 /* No key data - just set the default TX key index */
 589                 err = 0;
 590                 wdev_lock(wdev);
 591                 if (wdev->current_bss)
 592                         err = rdev_set_default_key(rdev, dev, idx, true,
 593                                                    true);
 594                 if (!err)
 595                         wdev->wext.default_key = idx;
 596                 wdev_unlock(wdev);
 597                 return err;
 598         }
 599
 600         memset(&params, 0, sizeof(params));
 601         params.key = keybuf;
 602         params.key_len = erq->length;
 603         if (erq->length == 5)
 604                 params.cipher = WLAN_CIPHER_SUITE_WEP40;
 605         else if (erq->length == 13)
 606                 params.cipher = WLAN_CIPHER_SUITE_WEP104;
 607         else if (!remove)
 608                 return -EINVAL;
 609
 610         return cfg80211_set_encryption(rdev, dev, false, NULL, remove,
 611                                        wdev->wext.default_key == -1,
 612                                        idx, &params);
 613 }
 614
 615 static int cfg80211_wext_siwencodeext(struct net_device *dev,
 616                                       struct iw_request_info *info,
 617                                       struct iw_point *erq, char *extra)
 618 {
 619         struct wireless_dev *wdev = dev->ieee80211_ptr;
 620         struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
 621         struct iw_encode_ext *ext = (struct iw_encode_ext *) extra;
 622         const u8 *addr;
 623         int idx;
 624         bool remove = false;
 625         struct key_params params;
 626         u32 cipher;
 627
 628         if (wdev->iftype != NL80211_IFTYPE_STATION &&
 629             wdev->iftype != NL80211_IFTYPE_ADHOC)
 630                 return -EOPNOTSUPP;
 631
 632         /* no use -- only MFP (set_default_mgmt_key) is optional */
 633         if (!rdev->ops->del_key ||
 634             !rdev->ops->add_key ||
 635             !rdev->ops->set_default_key)
 636                 return -EOPNOTSUPP;
 637
 638         switch (ext->alg) {
 639         case IW_ENCODE_ALG_NONE:
 640                 remove = true;
 641                 cipher = 0;
 642                 break;
 643         case IW_ENCODE_ALG_WEP:
 644                 if (ext->key_len == 5)
 645                         cipher = WLAN_CIPHER_SUITE_WEP40;
 646                 else if (ext->key_len == 13)
 647                         cipher = WLAN_CIPHER_SUITE_WEP104;
 648                 else
 649                         return -EINVAL;
 650                 break;
 651         case IW_ENCODE_ALG_TKIP:
 652                 cipher = WLAN_CIPHER_SUITE_TKIP;
 653                 break;
 654         case IW_ENCODE_ALG_CCMP:
 655                 cipher = WLAN_CIPHER_SUITE_CCMP;
 656                 break;
 657         case IW_ENCODE_ALG_AES_CMAC:
 658                 cipher = WLAN_CIPHER_SUITE_AES_CMAC;
 659                 break;
 660         default:
 661                 return -EOPNOTSUPP;
 662         }
 663
 664         if (erq->flags & IW_ENCODE_DISABLED)
 665                 remove = true;
 666
 667         idx = erq->flags & IW_ENCODE_INDEX;
 668         if (cipher == WLAN_CIPHER_SUITE_AES_CMAC) {
 669                 if (idx < 4 || idx > 5) {
 670                         idx = wdev->wext.default_mgmt_key;
 671                         if (idx < 0)
 672                                 return -EINVAL;
 673                 } else
 674                         idx--;
 675         } else {
 676                 if (idx < 1 || idx > 4) {
 677                         idx = wdev->wext.default_key;
 678                         if (idx < 0)
 679                                 return -EINVAL;
 680                 } else
 681                         idx--;
 682         }
 683
 684         addr = ext->addr.sa_data;
 685         if (is_broadcast_ether_addr(addr))
 686                 addr = NULL;
 687
 688         memset(&params, 0, sizeof(params));
 689         params.key = ext->key;
 690         params.key_len = ext->key_len;
 691         params.cipher = cipher;
 692
 693         if (ext->ext_flags & IW_ENCODE_EXT_RX_SEQ_VALID) {
 694                 params.seq = ext->rx_seq;
 695                 params.seq_len = 6;
 696         }
 697
 698         return cfg80211_set_encryption(
 699                         rdev, dev,
 700                         !(ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY),
 701                         addr, remove,
 702                         ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY,
 703                         idx, &params);
 704 }
 705
 706 static int cfg80211_wext_giwencode(struct net_device *dev,
 707                                    struct iw_request_info *info,
 708                                    struct iw_point *erq, char *keybuf)
 709 {
 710         struct wireless_dev *wdev = dev->ieee80211_ptr;
 711         int idx;
 712
 713         if (wdev->iftype != NL80211_IFTYPE_STATION &&
 714             wdev->iftype != NL80211_IFTYPE_ADHOC)
 715                 return -EOPNOTSUPP;
 716
 717         idx = erq->flags & IW_ENCODE_INDEX;
 718         if (idx == 0) {
 719                 idx = wdev->wext.default_key;
 720                 if (idx < 0)
 721                         idx = 0;
 722         } else if (idx < 1 || idx > 4)
 723                 return -EINVAL;
 724         else
 725                 idx--;
 726
 727         erq->flags = idx + 1;
 728
 729         if (!wdev->wext.keys || !wdev->wext.keys->params[idx].cipher) {
 730                 erq->flags |= IW_ENCODE_DISABLED;
 731                 erq->length = 0;
 732                 return 0;
 733         }
 734
 735         erq->length = min_t(size_t, erq->length,
 736                             wdev->wext.keys->params[idx].key_len);
 737         memcpy(keybuf, wdev->wext.keys->params[idx].key, erq->length);
 738         erq->flags |= IW_ENCODE_ENABLED;
 739
 740         return 0;
 741 }
 742
 743 static int cfg80211_wext_siwfreq(struct net_device *dev,
 744                                  struct iw_request_info *info,
 745                                  struct iw_freq *wextfreq, char *extra)
 746 {
 747         struct wireless_dev *wdev = dev->ieee80211_ptr;
 748         struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
 749         struct cfg80211_chan_def chandef = {
 750                 .width = NL80211_CHAN_WIDTH_20_NOHT,
 751         };
 752         int freq;
 753
 754         switch (wdev->iftype) {
 755         case NL80211_IFTYPE_STATION:
 756                 return cfg80211_mgd_wext_siwfreq(dev, info, wextfreq, extra);
 757         case NL80211_IFTYPE_ADHOC:
 758                 return cfg80211_ibss_wext_siwfreq(dev, info, wextfreq, extra);
 759         case NL80211_IFTYPE_MONITOR:
 760                 freq = cfg80211_wext_freq(wextfreq);
 761                 if (freq < 0)
 762                         return freq;
 763                 if (freq == 0)
 764                         return -EINVAL;
 765                 chandef.center_freq1 = freq;
 766                 chandef.chan = ieee80211_get_channel(&rdev->wiphy, freq);
 767                 if (!chandef.chan)
 768                         return -EINVAL;
 769                 return cfg80211_set_monitor_channel(rdev, &chandef);
 770         case NL80211_IFTYPE_MESH_POINT:
 771                 freq = cfg80211_wext_freq(wextfreq);
 772                 if (freq < 0)
 773                         return freq;
 774                 if (freq == 0)
 775                         return -EINVAL;
 776                 chandef.center_freq1 = freq;
 777                 chandef.chan = ieee80211_get_channel(&rdev->wiphy, freq);
 778                 if (!chandef.chan)
 779                         return -EINVAL;
 780                 return cfg80211_set_mesh_channel(rdev, wdev, &chandef);
 781         default:
 782                 return -EOPNOTSUPP;
 783         }
 784 }
 785
 786 static int cfg80211_wext_giwfreq(struct net_device *dev,
 787                                  struct iw_request_info *info,
 788                                  struct iw_freq *freq, char *extra)
 789 {
 790         struct wireless_dev *wdev = dev->ieee80211_ptr;
 791         struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
 792         struct cfg80211_chan_def chandef;
 793         int ret;
 794
 795         switch (wdev->iftype) {
 796         case NL80211_IFTYPE_STATION:
 797                 return cfg80211_mgd_wext_giwfreq(dev, info, freq, extra);
 798         case NL80211_IFTYPE_ADHOC:
 799                 return cfg80211_ibss_wext_giwfreq(dev, info, freq, extra);
 800         case NL80211_IFTYPE_MONITOR:
 801                 if (!rdev->ops->get_channel)
 802                         return -EINVAL;
 803
 804                 ret = rdev_get_channel(rdev, wdev, &chandef);
 805                 if (ret)
 806                         return ret;
 807                 freq->m = chandef.chan->center_freq;
 808                 freq->e = 6;
 809                 return 0;
 810         default:
 811                 return -EINVAL;
 812         }
 813 }
 814
 815 static int cfg80211_wext_siwtxpower(struct net_device *dev,
 816                                     struct iw_request_info *info,
 817                                     union iwreq_data *data, char *extra)
 818 {
 819         struct wireless_dev *wdev = dev->ieee80211_ptr;
 820         struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
 821         enum nl80211_tx_power_setting type;
 822         int dbm = 0;
 823
 824         if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM)
 825                 return -EINVAL;
 826         if (data->txpower.flags & IW_TXPOW_RANGE)
 827                 return -EINVAL;
 828
 829         if (!rdev->ops->set_tx_power)
 830                 return -EOPNOTSUPP;
 831
 832         /* only change when not disabling */
 833         if (!data->txpower.disabled) {
 834                 rfkill_set_sw_state(rdev->rfkill, false);
 835
 836                 if (data->txpower.fixed) {
 837                         /*
 838                          * wext doesn't support negative values, see
 839                          * below where it's for automatic
 840                          */
 841                         if (data->txpower.value < 0)
 842                                 return -EINVAL;
 843                         dbm = data->txpower.value;
 844                         type = NL80211_TX_POWER_FIXED;
 845                         /* TODO: do regulatory check! */
 846                 } else {
 847                         /*
 848                          * Automatic power level setting, max being the value
 849                          * passed in from userland.
 850                          */
 851                         if (data->txpower.value < 0) {
 852                                 type = NL80211_TX_POWER_AUTOMATIC;
 853                         } else {
 854                                 dbm = data->txpower.value;
 855                                 type = NL80211_TX_POWER_LIMITED;
 856                         }
 857                 }
 858         } else {
 859                 rfkill_set_sw_state(rdev->rfkill, true);
 860                 schedule_work(&rdev->rfkill_sync);
 861                 return 0;
 862         }
 863
 864         return rdev_set_tx_power(rdev, wdev, type, DBM_TO_MBM(dbm));
 865 }
 866
 867 static int cfg80211_wext_giwtxpower(struct net_device *dev,
 868                                     struct iw_request_info *info,
 869                                     union iwreq_data *data, char *extra)
 870 {
 871         struct wireless_dev *wdev = dev->ieee80211_ptr;
 872         struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
 873         int err, val;
 874
 875         if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM)
 876                 return -EINVAL;
 877         if (data->txpower.flags & IW_TXPOW_RANGE)
 878                 return -EINVAL;
 879
 880         if (!rdev->ops->get_tx_power)
 881                 return -EOPNOTSUPP;
 882
 883         err = rdev_get_tx_power(rdev, wdev, &val);
 884         if (err)
 885                 return err;
 886
 887         /* well... oh well */
 888         data->txpower.fixed = 1;
 889         data->txpower.disabled = rfkill_blocked(rdev->rfkill);
 890         data->txpower.value = val;
 891         data->txpower.flags = IW_TXPOW_DBM;
 892
 893         return 0;
 894 }
 895
 896 static int cfg80211_set_auth_alg(struct wireless_dev *wdev,
 897                                  s32 auth_alg)
 898 {
 899         int nr_alg = 0;
 900
 901         if (!auth_alg)
 902                 return -EINVAL;
 903
 904         if (auth_alg & ~(IW_AUTH_ALG_OPEN_SYSTEM |
 905                          IW_AUTH_ALG_SHARED_KEY |
 906                          IW_AUTH_ALG_LEAP))
 907                 return -EINVAL;
 908
 909         if (auth_alg & IW_AUTH_ALG_OPEN_SYSTEM) {
 910                 nr_alg++;
 911                 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
 912         }
 913
 914         if (auth_alg & IW_AUTH_ALG_SHARED_KEY) {
 915                 nr_alg++;
 916                 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_SHARED_KEY;
 917         }
 918
 919         if (auth_alg & IW_AUTH_ALG_LEAP) {
 920                 nr_alg++;
 921                 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_NETWORK_EAP;
 922         }
 923
 924         if (nr_alg > 1)
 925                 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
 926
 927         return 0;
 928 }
 929
 930 static int cfg80211_set_wpa_version(struct wireless_dev *wdev, u32 wpa_versions)
 931 {
 932         if (wpa_versions & ~(IW_AUTH_WPA_VERSION_WPA |
 933                              IW_AUTH_WPA_VERSION_WPA2|
 934                              IW_AUTH_WPA_VERSION_DISABLED))
 935                 return -EINVAL;
 936
 937         if ((wpa_versions & IW_AUTH_WPA_VERSION_DISABLED) &&
 938             (wpa_versions & (IW_AUTH_WPA_VERSION_WPA|
 939                              IW_AUTH_WPA_VERSION_WPA2)))
 940                 return -EINVAL;
 941
 942         if (wpa_versions & IW_AUTH_WPA_VERSION_DISABLED)
 943                 wdev->wext.connect.crypto.wpa_versions &=
 944                         ~(NL80211_WPA_VERSION_1|NL80211_WPA_VERSION_2);
 945
 946         if (wpa_versions & IW_AUTH_WPA_VERSION_WPA)
 947                 wdev->wext.connect.crypto.wpa_versions |=
 948                         NL80211_WPA_VERSION_1;
 949
 950         if (wpa_versions & IW_AUTH_WPA_VERSION_WPA2)
 951                 wdev->wext.connect.crypto.wpa_versions |=
 952                         NL80211_WPA_VERSION_2;
 953
 954         return 0;
 955 }
 956
 957 static int cfg80211_set_cipher_group(struct wireless_dev *wdev, u32 cipher)
 958 {
 959         if (cipher & IW_AUTH_CIPHER_WEP40)
 960                 wdev->wext.connect.crypto.cipher_group =
 961                         WLAN_CIPHER_SUITE_WEP40;
 962         else if (cipher & IW_AUTH_CIPHER_WEP104)
 963                 wdev->wext.connect.crypto.cipher_group =
 964                         WLAN_CIPHER_SUITE_WEP104;
 965         else if (cipher & IW_AUTH_CIPHER_TKIP)
 966                 wdev->wext.connect.crypto.cipher_group =
 967                         WLAN_CIPHER_SUITE_TKIP;
 968         else if (cipher & IW_AUTH_CIPHER_CCMP)
 969                 wdev->wext.connect.crypto.cipher_group =
 970                         WLAN_CIPHER_SUITE_CCMP;
 971         else if (cipher & IW_AUTH_CIPHER_AES_CMAC)
 972                 wdev->wext.connect.crypto.cipher_group =
 973                         WLAN_CIPHER_SUITE_AES_CMAC;
 974         else if (cipher & IW_AUTH_CIPHER_NONE)
 975                 wdev->wext.connect.crypto.cipher_group = 0;
 976         else
 977                 return -EINVAL;
 978
 979         return 0;
 980 }
 981
 982 static int cfg80211_set_cipher_pairwise(struct wireless_dev *wdev, u32 cipher)
 983 {
 984         int nr_ciphers = 0;
 985         u32 *ciphers_pairwise = wdev->wext.connect.crypto.ciphers_pairwise;
 986
 987         if (cipher & IW_AUTH_CIPHER_WEP40) {
 988                 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_WEP40;
 989                 nr_ciphers++;
 990         }
 991
 992         if (cipher & IW_AUTH_CIPHER_WEP104) {
 993                 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_WEP104;
 994                 nr_ciphers++;
 995         }
 996
 997         if (cipher & IW_AUTH_CIPHER_TKIP) {
 998                 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_TKIP;
 999                 nr_ciphers++;
1000         }
1001
1002         if (cipher & IW_AUTH_CIPHER_CCMP) {
1003                 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_CCMP;
1004                 nr_ciphers++;
1005         }
1006
1007         if (cipher & IW_AUTH_CIPHER_AES_CMAC) {
1008                 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_AES_CMAC;
1009                 nr_ciphers++;
1010         }
1011
1012         BUILD_BUG_ON(NL80211_MAX_NR_CIPHER_SUITES < 5);
1013
1014         wdev->wext.connect.crypto.n_ciphers_pairwise = nr_ciphers;
1015
1016         return 0;
1017 }
1018
1019
1020 static int cfg80211_set_key_mgt(struct wireless_dev *wdev, u32 key_mgt)
1021 {
1022         int nr_akm_suites = 0;
1023
1024         if (key_mgt & ~(IW_AUTH_KEY_MGMT_802_1X |
1025                         IW_AUTH_KEY_MGMT_PSK))
1026                 return -EINVAL;
1027
1028         if (key_mgt & IW_AUTH_KEY_MGMT_802_1X) {
1029                 wdev->wext.connect.crypto.akm_suites[nr_akm_suites] =
1030                         WLAN_AKM_SUITE_8021X;
1031                 nr_akm_suites++;
1032         }
1033
1034         if (key_mgt & IW_AUTH_KEY_MGMT_PSK) {
1035                 wdev->wext.connect.crypto.akm_suites[nr_akm_suites] =
1036                         WLAN_AKM_SUITE_PSK;
1037                 nr_akm_suites++;
1038         }
1039
1040         wdev->wext.connect.crypto.n_akm_suites = nr_akm_suites;
1041
1042         return 0;
1043 }
1044
1045 static int cfg80211_wext_siwauth(struct net_device *dev,
1046                                  struct iw_request_info *info,
1047                                  struct iw_param *data, char *extra)
1048 {
1049         struct wireless_dev *wdev = dev->ieee80211_ptr;
1050
1051         if (wdev->iftype != NL80211_IFTYPE_STATION)
1052                 return -EOPNOTSUPP;
1053
1054         switch (data->flags & IW_AUTH_INDEX) {
1055         case IW_AUTH_PRIVACY_INVOKED:
1056                 wdev->wext.connect.privacy = data->value;
1057                 return 0;
1058         case IW_AUTH_WPA_VERSION:
1059                 return cfg80211_set_wpa_version(wdev, data->value);
1060         case IW_AUTH_CIPHER_GROUP:
1061                 return cfg80211_set_cipher_group(wdev, data->value);
1062         case IW_AUTH_KEY_MGMT:
1063                 return cfg80211_set_key_mgt(wdev, data->value);
1064         case IW_AUTH_CIPHER_PAIRWISE:
1065                 return cfg80211_set_cipher_pairwise(wdev, data->value);
1066         case IW_AUTH_80211_AUTH_ALG:
1067                 return cfg80211_set_auth_alg(wdev, data->value);
1068         case IW_AUTH_WPA_ENABLED:
1069         case IW_AUTH_RX_UNENCRYPTED_EAPOL:
1070         case IW_AUTH_DROP_UNENCRYPTED:
1071         case IW_AUTH_MFP:
1072                 return 0;
1073         default:
1074                 return -EOPNOTSUPP;
1075         }
1076 }
1077
1078 static int cfg80211_wext_giwauth(struct net_device *dev,
1079                                  struct iw_request_info *info,
1080                                  struct iw_param *data, char *extra)
1081 {
1082         /* XXX: what do we need? */
1083
1084         return -EOPNOTSUPP;
1085 }
1086
1087 static int cfg80211_wext_siwpower(struct net_device *dev,
1088                                   struct iw_request_info *info,
1089                                   struct iw_param *wrq, char *extra)
1090 {
1091         struct wireless_dev *wdev = dev->ieee80211_ptr;
1092         struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
1093         bool ps = wdev->ps;
1094         int timeout = wdev->ps_timeout;
1095         int err;
1096
1097         if (wdev->iftype != NL80211_IFTYPE_STATION)
1098                 return -EINVAL;
1099
1100         if (!rdev->ops->set_power_mgmt)
1101                 return -EOPNOTSUPP;
1102
1103         if (wrq->disabled) {
1104                 ps = false;
1105         } else {
1106                 switch (wrq->flags & IW_POWER_MODE) {
1107                 case IW_POWER_ON:       /* If not specified */
1108                 case IW_POWER_MODE:     /* If set all mask */
1109                 case IW_POWER_ALL_R:    /* If explicitely state all */
1110                         ps = true;
1111                         break;
1112                 default:                /* Otherwise we ignore */
1113                         return -EINVAL;
1114                 }
1115
1116                 if (wrq->flags & ~(IW_POWER_MODE | IW_POWER_TIMEOUT))
1117                         return -EINVAL;
1118
1119                 if (wrq->flags & IW_POWER_TIMEOUT)
1120                         timeout = wrq->value / 1000;
1121         }
1122
1123         err = rdev_set_power_mgmt(rdev, dev, ps, timeout);
1124         if (err)
1125                 return err;
1126
1127         wdev->ps = ps;
1128         wdev->ps_timeout = timeout;
1129
1130         return 0;
1131
1132 }
1133
1134 static int cfg80211_wext_giwpower(struct net_device *dev,
1135                                   struct iw_request_info *info,
1136                                   struct iw_param *wrq, char *extra)
1137 {
1138         struct wireless_dev *wdev = dev->ieee80211_ptr;
1139
1140         wrq->disabled = !wdev->ps;
1141
1142         return 0;
1143 }
1144
1145 static int cfg80211_wds_wext_siwap(struct net_device *dev,
1146                                    struct iw_request_info *info,
1147                                    struct sockaddr *addr, char *extra)
1148 {
1149         struct wireless_dev *wdev = dev->ieee80211_ptr;
1150         struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
1151         int err;
1152
1153         if (WARN_ON(wdev->iftype != NL80211_IFTYPE_WDS))
1154                 return -EINVAL;
1155
1156         if (addr->sa_family != ARPHRD_ETHER)
1157                 return -EINVAL;
1158
1159         if (netif_running(dev))
1160                 return -EBUSY;
1161
1162         if (!rdev->ops->set_wds_peer)
1163                 return -EOPNOTSUPP;
1164
1165         err = rdev_set_wds_peer(rdev, dev, (u8 *)&addr->sa_data);
1166         if (err)
1167                 return err;
1168
1169         memcpy(&wdev->wext.bssid, (u8 *) &addr->sa_data, ETH_ALEN);
1170
1171         return 0;
1172 }
1173
1174 static int cfg80211_wds_wext_giwap(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
1180         if (WARN_ON(wdev->iftype != NL80211_IFTYPE_WDS))
1181                 return -EINVAL;
1182
1183         addr->sa_family = ARPHRD_ETHER;
1184         memcpy(&addr->sa_data, wdev->wext.bssid, ETH_ALEN);
1185
1186         return 0;
1187 }
1188
1189 static int cfg80211_wext_siwrate(struct net_device *dev,
1190                                  struct iw_request_info *info,
1191                                  struct iw_param *rate, char *extra)
1192 {
1193         struct wireless_dev *wdev = dev->ieee80211_ptr;
1194         struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
1195         struct cfg80211_bitrate_mask mask;
1196         u32 fixed, maxrate;
1197         struct ieee80211_supported_band *sband;
1198         int band, ridx;
1199         bool match = false;
1200
1201         if (!rdev->ops->set_bitrate_mask)
1202                 return -EOPNOTSUPP;
1203
1204         memset(&mask, 0, sizeof(mask));
1205         fixed = 0;
1206         maxrate = (u32)-1;
1207
1208         if (rate->value < 0) {
1209                 /* nothing */
1210         } else if (rate->fixed) {
1211                 fixed = rate->value / 100000;
1212         } else {
1213                 maxrate = rate->value / 100000;
1214         }
1215
1216         for (band = 0; band < NUM_NL80211_BANDS; band++) {
1217                 sband = wdev->wiphy->bands[band];
1218                 if (sband == NULL)
1219                         continue;
1220                 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
1221                         struct ieee80211_rate *srate = &sband->bitrates[ridx];
1222                         if (fixed == srate->bitrate) {
1223                                 mask.control[band].legacy = 1 << ridx;
1224                                 match = true;
1225                                 break;
1226                         }
1227                         if (srate->bitrate <= maxrate) {
1228                                 mask.control[band].legacy |= 1 << ridx;
1229                                 match = true;
1230                         }
1231                 }
1232         }
1233
1234         if (!match)
1235                 return -EINVAL;
1236
1237         return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
1238 }
1239
1240 static int cfg80211_wext_giwrate(struct net_device *dev,
1241                                  struct iw_request_info *info,
1242                                  struct iw_param *rate, char *extra)
1243 {
1244         struct wireless_dev *wdev = dev->ieee80211_ptr;
1245         struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
1246         /* we are under RTNL - globally locked - so can use a static struct */
1247         static struct station_info sinfo;
1248         u8 addr[ETH_ALEN];
1249         int err;
1250
1251         if (wdev->iftype != NL80211_IFTYPE_STATION)
1252                 return -EOPNOTSUPP;
1253
1254         if (!rdev->ops->get_station)
1255                 return -EOPNOTSUPP;
1256
1257         err = 0;
1258         wdev_lock(wdev);
1259         if (wdev->current_bss)
1260                 memcpy(addr, wdev->current_bss->pub.bssid, ETH_ALEN);
1261         else
1262                 err = -EOPNOTSUPP;
1263         wdev_unlock(wdev);
1264         if (err)
1265                 return err;
1266
1267         err = rdev_get_station(rdev, dev, addr, &sinfo);
1268         if (err)
1269                 return err;
1270
1271         if (!(sinfo.filled & BIT(NL80211_STA_INFO_TX_BITRATE)))
1272                 return -EOPNOTSUPP;
1273
1274         rate->value = 100000 * cfg80211_calculate_bitrate(&sinfo.txrate);
1275
1276         return 0;
1277 }
1278
1279 /* Get wireless statistics.  Called by /proc/net/wireless and by SIOCGIWSTATS */
1280 static struct iw_statistics *cfg80211_wireless_stats(struct net_device *dev)
1281 {
1282         struct wireless_dev *wdev = dev->ieee80211_ptr;
1283         struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
1284         /* we are under RTNL - globally locked - so can use static structs */
1285         static struct iw_statistics wstats;
1286         static struct station_info sinfo;
1287         u8 bssid[ETH_ALEN];
1288
1289         if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION)
1290                 return NULL;
1291
1292         if (!rdev->ops->get_station)
1293                 return NULL;
1294
1295         /* Grab BSSID of current BSS, if any */
1296         wdev_lock(wdev);
1297         if (!wdev->current_bss) {
1298                 wdev_unlock(wdev);
1299                 return NULL;
1300         }
1301         memcpy(bssid, wdev->current_bss->pub.bssid, ETH_ALEN);
1302         wdev_unlock(wdev);
1303
1304         memset(&sinfo, 0, sizeof(sinfo));
1305
1306         if (rdev_get_station(rdev, dev, bssid, &sinfo))
1307                 return NULL;
1308
1309         memset(&wstats, 0, sizeof(wstats));
1310
1311         switch (rdev->wiphy.signal_type) {
1312         case CFG80211_SIGNAL_TYPE_MBM:
1313                 if (sinfo.filled & BIT(NL80211_STA_INFO_SIGNAL)) {
1314                         int sig = sinfo.signal;
1315                         wstats.qual.updated |= IW_QUAL_LEVEL_UPDATED;
1316                         wstats.qual.updated |= IW_QUAL_QUAL_UPDATED;
1317                         wstats.qual.updated |= IW_QUAL_DBM;
1318                         wstats.qual.level = sig;
1319                         if (sig < -110)
1320                                 sig = -110;
1321                         else if (sig > -40)
1322                                 sig = -40;
1323                         wstats.qual.qual = sig + 110;
1324                         break;
1325                 }
1326         case CFG80211_SIGNAL_TYPE_UNSPEC:
1327                 if (sinfo.filled & BIT(NL80211_STA_INFO_SIGNAL)) {
1328                         wstats.qual.updated |= IW_QUAL_LEVEL_UPDATED;
1329                         wstats.qual.updated |= IW_QUAL_QUAL_UPDATED;
1330                         wstats.qual.level = sinfo.signal;
1331                         wstats.qual.qual = sinfo.signal;
1332                         break;
1333                 }
1334         default:
1335                 wstats.qual.updated |= IW_QUAL_LEVEL_INVALID;
1336                 wstats.qual.updated |= IW_QUAL_QUAL_INVALID;
1337         }
1338
1339         wstats.qual.updated |= IW_QUAL_NOISE_INVALID;
1340         if (sinfo.filled & BIT(NL80211_STA_INFO_RX_DROP_MISC))
1341                 wstats.discard.misc = sinfo.rx_dropped_misc;
1342         if (sinfo.filled & BIT(NL80211_STA_INFO_TX_FAILED))
1343                 wstats.discard.retries = sinfo.tx_failed;
1344
1345         return &wstats;
1346 }
1347
1348 static int cfg80211_wext_siwap(struct net_device *dev,
1349                                struct iw_request_info *info,
1350                                struct sockaddr *ap_addr, char *extra)
1351 {
1352         struct wireless_dev *wdev = dev->ieee80211_ptr;
1353
1354         switch (wdev->iftype) {
1355         case NL80211_IFTYPE_ADHOC:
1356                 return cfg80211_ibss_wext_siwap(dev, info, ap_addr, extra);
1357         case NL80211_IFTYPE_STATION:
1358                 return cfg80211_mgd_wext_siwap(dev, info, ap_addr, extra);
1359         case NL80211_IFTYPE_WDS:
1360                 return cfg80211_wds_wext_siwap(dev, info, ap_addr, extra);
1361         default:
1362                 return -EOPNOTSUPP;
1363         }
1364 }
1365
1366 static int cfg80211_wext_giwap(struct net_device *dev,
1367                                struct iw_request_info *info,
1368                                struct sockaddr *ap_addr, char *extra)
1369 {
1370         struct wireless_dev *wdev = dev->ieee80211_ptr;
1371
1372         switch (wdev->iftype) {
1373         case NL80211_IFTYPE_ADHOC:
1374                 return cfg80211_ibss_wext_giwap(dev, info, ap_addr, extra);
1375         case NL80211_IFTYPE_STATION:
1376                 return cfg80211_mgd_wext_giwap(dev, info, ap_addr, extra);
1377         case NL80211_IFTYPE_WDS:
1378                 return cfg80211_wds_wext_giwap(dev, info, ap_addr, extra);
1379         default:
1380                 return -EOPNOTSUPP;
1381         }
1382 }
1383
1384 static int cfg80211_wext_siwessid(struct net_device *dev,
1385                                   struct iw_request_info *info,
1386                                   struct iw_point *data, char *ssid)
1387 {
1388         struct wireless_dev *wdev = dev->ieee80211_ptr;
1389
1390         switch (wdev->iftype) {
1391         case NL80211_IFTYPE_ADHOC:
1392                 return cfg80211_ibss_wext_siwessid(dev, info, data, ssid);
1393         case NL80211_IFTYPE_STATION:
1394                 return cfg80211_mgd_wext_siwessid(dev, info, data, ssid);
1395         default:
1396                 return -EOPNOTSUPP;
1397         }
1398 }
1399
1400 static int cfg80211_wext_giwessid(struct net_device *dev,
1401                                   struct iw_request_info *info,
1402                                   struct iw_point *data, char *ssid)
1403 {
1404         struct wireless_dev *wdev = dev->ieee80211_ptr;
1405
1406         data->flags = 0;
1407         data->length = 0;
1408
1409         switch (wdev->iftype) {
1410         case NL80211_IFTYPE_ADHOC:
1411                 return cfg80211_ibss_wext_giwessid(dev, info, data, ssid);
1412         case NL80211_IFTYPE_STATION:
1413                 return cfg80211_mgd_wext_giwessid(dev, info, data, ssid);
1414         default:
1415                 return -EOPNOTSUPP;
1416         }
1417 }
1418
1419 static int cfg80211_wext_siwpmksa(struct net_device *dev,
1420                                   struct iw_request_info *info,
1421                                   struct iw_point *data, char *extra)
1422 {
1423         struct wireless_dev *wdev = dev->ieee80211_ptr;
1424         struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
1425         struct cfg80211_pmksa cfg_pmksa;
1426         struct iw_pmksa *pmksa = (struct iw_pmksa *)extra;
1427
1428         memset(&cfg_pmksa, 0, sizeof(struct cfg80211_pmksa));
1429
1430         if (wdev->iftype != NL80211_IFTYPE_STATION)
1431                 return -EINVAL;
1432
1433         cfg_pmksa.bssid = pmksa->bssid.sa_data;
1434         cfg_pmksa.pmkid = pmksa->pmkid;
1435
1436         switch (pmksa->cmd) {
1437         case IW_PMKSA_ADD:
1438                 if (!rdev->ops->set_pmksa)
1439                         return -EOPNOTSUPP;
1440
1441                 return rdev_set_pmksa(rdev, dev, &cfg_pmksa);
1442
1443         case IW_PMKSA_REMOVE:
1444                 if (!rdev->ops->del_pmksa)
1445                         return -EOPNOTSUPP;
1446
1447                 return rdev_del_pmksa(rdev, dev, &cfg_pmksa);
1448
1449         case IW_PMKSA_FLUSH:
1450                 if (!rdev->ops->flush_pmksa)
1451                         return -EOPNOTSUPP;
1452
1453                 return rdev_flush_pmksa(rdev, dev);
1454
1455         default:
1456                 return -EOPNOTSUPP;
1457         }
1458 }
1459
1460 static const iw_handler cfg80211_handlers[] = {
1461         [IW_IOCTL_IDX(SIOCGIWNAME)]     = (iw_handler) cfg80211_wext_giwname,
1462         [IW_IOCTL_IDX(SIOCSIWFREQ)]     = (iw_handler) cfg80211_wext_siwfreq,
1463         [IW_IOCTL_IDX(SIOCGIWFREQ)]     = (iw_handler) cfg80211_wext_giwfreq,
1464         [IW_IOCTL_IDX(SIOCSIWMODE)]     = (iw_handler) cfg80211_wext_siwmode,
1465         [IW_IOCTL_IDX(SIOCGIWMODE)]     = (iw_handler) cfg80211_wext_giwmode,
1466         [IW_IOCTL_IDX(SIOCGIWRANGE)]    = (iw_handler) cfg80211_wext_giwrange,
1467         [IW_IOCTL_IDX(SIOCSIWAP)]       = (iw_handler) cfg80211_wext_siwap,
1468         [IW_IOCTL_IDX(SIOCGIWAP)]       = (iw_handler) cfg80211_wext_giwap,
1469         [IW_IOCTL_IDX(SIOCSIWMLME)]     = (iw_handler) cfg80211_wext_siwmlme,
1470         [IW_IOCTL_IDX(SIOCSIWSCAN)]     = (iw_handler) cfg80211_wext_siwscan,
1471         [IW_IOCTL_IDX(SIOCGIWSCAN)]     = (iw_handler) cfg80211_wext_giwscan,
1472         [IW_IOCTL_IDX(SIOCSIWESSID)]    = (iw_handler) cfg80211_wext_siwessid,
1473         [IW_IOCTL_IDX(SIOCGIWESSID)]    = (iw_handler) cfg80211_wext_giwessid,
1474         [IW_IOCTL_IDX(SIOCSIWRATE)]     = (iw_handler) cfg80211_wext_siwrate,
1475         [IW_IOCTL_IDX(SIOCGIWRATE)]     = (iw_handler) cfg80211_wext_giwrate,
1476         [IW_IOCTL_IDX(SIOCSIWRTS)]      = (iw_handler) cfg80211_wext_siwrts,
1477         [IW_IOCTL_IDX(SIOCGIWRTS)]      = (iw_handler) cfg80211_wext_giwrts,
1478         [IW_IOCTL_IDX(SIOCSIWFRAG)]     = (iw_handler) cfg80211_wext_siwfrag,
1479         [IW_IOCTL_IDX(SIOCGIWFRAG)]     = (iw_handler) cfg80211_wext_giwfrag,
1480         [IW_IOCTL_IDX(SIOCSIWTXPOW)]    = (iw_handler) cfg80211_wext_siwtxpower,
1481         [IW_IOCTL_IDX(SIOCGIWTXPOW)]    = (iw_handler) cfg80211_wext_giwtxpower,
1482         [IW_IOCTL_IDX(SIOCSIWRETRY)]    = (iw_handler) cfg80211_wext_siwretry,
1483         [IW_IOCTL_IDX(SIOCGIWRETRY)]    = (iw_handler) cfg80211_wext_giwretry,
1484         [IW_IOCTL_IDX(SIOCSIWENCODE)]   = (iw_handler) cfg80211_wext_siwencode,
1485         [IW_IOCTL_IDX(SIOCGIWENCODE)]   = (iw_handler) cfg80211_wext_giwencode,
1486         [IW_IOCTL_IDX(SIOCSIWPOWER)]    = (iw_handler) cfg80211_wext_siwpower,
1487         [IW_IOCTL_IDX(SIOCGIWPOWER)]    = (iw_handler) cfg80211_wext_giwpower,
1488         [IW_IOCTL_IDX(SIOCSIWGENIE)]    = (iw_handler) cfg80211_wext_siwgenie,
1489         [IW_IOCTL_IDX(SIOCSIWAUTH)]     = (iw_handler) cfg80211_wext_siwauth,
1490         [IW_IOCTL_IDX(SIOCGIWAUTH)]     = (iw_handler) cfg80211_wext_giwauth,
1491         [IW_IOCTL_IDX(SIOCSIWENCODEEXT)]= (iw_handler) cfg80211_wext_siwencodeext,
1492         [IW_IOCTL_IDX(SIOCSIWPMKSA)]    = (iw_handler) cfg80211_wext_siwpmksa,
1493 };
1494
1495 const struct iw_handler_def cfg80211_wext_handler = {
1496         .num_standard           = ARRAY_SIZE(cfg80211_handlers),
1497         .standard               = cfg80211_handlers,
1498         .get_wireless_stats = cfg80211_wireless_stats,
1499 };