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         struct wireless_dev *wdev = dev->ieee80211_ptr;
  29         struct ieee80211_supported_band *sband;
  30         bool is_ht = false, is_a = false, is_b = false, is_g = false;
  31
  32         if (!wdev)
  33                 return -EOPNOTSUPP;
  34
  35         sband = wdev->wiphy->bands[IEEE80211_BAND_5GHZ];
  36         if (sband) {
  37                 is_a = true;
  38                 is_ht |= sband->ht_cap.ht_supported;
  39         }
  40
  41         sband = wdev->wiphy->bands[IEEE80211_BAND_2GHZ];
  42         if (sband) {
  43                 int i;
  44                 /* Check for mandatory rates */
  45                 for (i = 0; i < sband->n_bitrates; i++) {
  46                         if (sband->bitrates[i].bitrate == 10)
  47                                 is_b = true;
  48                         if (sband->bitrates[i].bitrate == 60)
  49                                 is_g = true;
  50                 }
  51                 is_ht |= sband->ht_cap.ht_supported;
  52         }
  53
  54         strcpy(name, "IEEE 802.11");
  55         if (is_a)
  56                 strcat(name, "a");
  57         if (is_b)
  58                 strcat(name, "b");
  59         if (is_g)
  60                 strcat(name, "g");
  61         if (is_ht)
  62                 strcat(name, "n");
  63
  64         return 0;
  65 }
  66 EXPORT_SYMBOL_GPL(cfg80211_wext_giwname);
  67
  68 int cfg80211_wext_siwmode(struct net_device *dev, struct iw_request_info *info,
  69                           u32 *mode, char *extra)
  70 {
  71         struct wireless_dev *wdev = dev->ieee80211_ptr;
  72         struct cfg80211_registered_device *rdev;
  73         struct vif_params vifparams;
  74         enum nl80211_iftype type;
  75
  76         rdev = wiphy_to_dev(wdev->wiphy);
  77
  78         switch (*mode) {
  79         case IW_MODE_INFRA:
  80                 type = NL80211_IFTYPE_STATION;
  81                 break;
  82         case IW_MODE_ADHOC:
  83                 type = NL80211_IFTYPE_ADHOC;
  84                 break;
  85         case IW_MODE_REPEAT:
  86                 type = NL80211_IFTYPE_WDS;
  87                 break;
  88         case IW_MODE_MONITOR:
  89                 type = NL80211_IFTYPE_MONITOR;
  90                 break;
  91         default:
  92                 return -EINVAL;
  93         }
  94
  95         if (type == wdev->iftype)
  96                 return 0;
  97
  98         memset(&vifparams, 0, sizeof(vifparams));
  99
 100         return cfg80211_change_iface(rdev, dev, type, NULL, &vifparams);
 101 }
 102 EXPORT_SYMBOL_GPL(cfg80211_wext_siwmode);
 103
 104 int cfg80211_wext_giwmode(struct net_device *dev, struct iw_request_info *info,
 105                           u32 *mode, char *extra)
 106 {
 107         struct wireless_dev *wdev = dev->ieee80211_ptr;
 108
 109         if (!wdev)
 110                 return -EOPNOTSUPP;
 111
 112         switch (wdev->iftype) {
 113         case NL80211_IFTYPE_AP:
 114                 *mode = IW_MODE_MASTER;
 115                 break;
 116         case NL80211_IFTYPE_STATION:
 117                 *mode = IW_MODE_INFRA;
 118                 break;
 119         case NL80211_IFTYPE_ADHOC:
 120                 *mode = IW_MODE_ADHOC;
 121                 break;
 122         case NL80211_IFTYPE_MONITOR:
 123                 *mode = IW_MODE_MONITOR;
 124                 break;
 125         case NL80211_IFTYPE_WDS:
 126                 *mode = IW_MODE_REPEAT;
 127                 break;
 128         case NL80211_IFTYPE_AP_VLAN:
 129                 *mode = IW_MODE_SECOND;         /* FIXME */
 130                 break;
 131         default:
 132                 *mode = IW_MODE_AUTO;
 133                 break;
 134         }
 135         return 0;
 136 }
 137 EXPORT_SYMBOL_GPL(cfg80211_wext_giwmode);
 138
 139
 140 int cfg80211_wext_giwrange(struct net_device *dev,
 141                            struct iw_request_info *info,
 142                            struct iw_point *data, char *extra)
 143 {
 144         struct wireless_dev *wdev = dev->ieee80211_ptr;
 145         struct iw_range *range = (struct iw_range *) extra;
 146         enum ieee80211_band band;
 147         int i, c = 0;
 148
 149         if (!wdev)
 150                 return -EOPNOTSUPP;
 151
 152         data->length = sizeof(struct iw_range);
 153         memset(range, 0, sizeof(struct iw_range));
 154
 155         range->we_version_compiled = WIRELESS_EXT;
 156         range->we_version_source = 21;
 157         range->retry_capa = IW_RETRY_LIMIT;
 158         range->retry_flags = IW_RETRY_LIMIT;
 159         range->min_retry = 0;
 160         range->max_retry = 255;
 161         range->min_rts = 0;
 162         range->max_rts = 2347;
 163         range->min_frag = 256;
 164         range->max_frag = 2346;
 165
 166         range->max_encoding_tokens = 4;
 167
 168         range->max_qual.updated = IW_QUAL_NOISE_INVALID;
 169
 170         switch (wdev->wiphy->signal_type) {
 171         case CFG80211_SIGNAL_TYPE_NONE:
 172                 break;
 173         case CFG80211_SIGNAL_TYPE_MBM:
 174                 range->max_qual.level = (u8)-110;
 175                 range->max_qual.qual = 70;
 176                 range->avg_qual.qual = 35;
 177                 range->max_qual.updated |= IW_QUAL_DBM;
 178                 range->max_qual.updated |= IW_QUAL_QUAL_UPDATED;
 179                 range->max_qual.updated |= IW_QUAL_LEVEL_UPDATED;
 180                 break;
 181         case CFG80211_SIGNAL_TYPE_UNSPEC:
 182                 range->max_qual.level = 100;
 183                 range->max_qual.qual = 100;
 184                 range->avg_qual.qual = 50;
 185                 range->max_qual.updated |= IW_QUAL_QUAL_UPDATED;
 186                 range->max_qual.updated |= IW_QUAL_LEVEL_UPDATED;
 187                 break;
 188         }
 189
 190         range->avg_qual.level = range->max_qual.level / 2;
 191         range->avg_qual.noise = range->max_qual.noise / 2;
 192         range->avg_qual.updated = range->max_qual.updated;
 193
 194         for (i = 0; i < wdev->wiphy->n_cipher_suites; i++) {
 195                 switch (wdev->wiphy->cipher_suites[i]) {
 196                 case WLAN_CIPHER_SUITE_TKIP:
 197                         range->enc_capa |= (IW_ENC_CAPA_CIPHER_TKIP |
 198                                             IW_ENC_CAPA_WPA);
 199                         break;
 200
 201                 case WLAN_CIPHER_SUITE_CCMP:
 202                         range->enc_capa |= (IW_ENC_CAPA_CIPHER_CCMP |
 203                                             IW_ENC_CAPA_WPA2);
 204                         break;
 205
 206                 case WLAN_CIPHER_SUITE_WEP40:
 207                         range->encoding_size[range->num_encoding_sizes++] =
 208                                 WLAN_KEY_LEN_WEP40;
 209                         break;
 210
 211                 case WLAN_CIPHER_SUITE_WEP104:
 212                         range->encoding_size[range->num_encoding_sizes++] =
 213                                 WLAN_KEY_LEN_WEP104;
 214                         break;
 215                 }
 216         }
 217
 218         for (band = 0; band < IEEE80211_NUM_BANDS; band ++) {
 219                 struct ieee80211_supported_band *sband;
 220
 221                 sband = wdev->wiphy->bands[band];
 222
 223                 if (!sband)
 224                         continue;
 225
 226                 for (i = 0; i < sband->n_channels && c < IW_MAX_FREQUENCIES; i++) {
 227                         struct ieee80211_channel *chan = &sband->channels[i];
 228
 229                         if (!(chan->flags & IEEE80211_CHAN_DISABLED)) {
 230                                 range->freq[c].i =
 231                                         ieee80211_frequency_to_channel(
 232                                                 chan->center_freq);
 233                                 range->freq[c].m = chan->center_freq;
 234                                 range->freq[c].e = 6;
 235                                 c++;
 236                         }
 237                 }
 238         }
 239         range->num_channels = c;
 240         range->num_frequency = c;
 241
 242         IW_EVENT_CAPA_SET_KERNEL(range->event_capa);
 243         IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWAP);
 244         IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWSCAN);
 245
 246         if (wdev->wiphy->max_scan_ssids > 0)
 247                 range->scan_capa |= IW_SCAN_CAPA_ESSID;
 248
 249         return 0;
 250 }
 251 EXPORT_SYMBOL_GPL(cfg80211_wext_giwrange);
 252
 253
 254 /**
 255  * cfg80211_wext_freq - get wext frequency for non-"auto"
 256  * @wiphy: the wiphy
 257  * @freq: the wext freq encoding
 258  *
 259  * Returns a frequency, or a negative error code, or 0 for auto.
 260  */
 261 int cfg80211_wext_freq(struct wiphy *wiphy, struct iw_freq *freq)
 262 {
 263         /*
 264          * Parse frequency - return 0 for auto and
 265          * -EINVAL for impossible things.
 266          */
 267         if (freq->e == 0) {
 268                 enum ieee80211_band band = IEEE80211_BAND_2GHZ;
 269                 if (freq->m < 0)
 270                         return 0;
 271                 if (freq->m > 14)
 272                         band = IEEE80211_BAND_5GHZ;
 273                 return ieee80211_channel_to_frequency(freq->m, band);
 274         } else {
 275                 int i, div = 1000000;
 276                 for (i = 0; i < freq->e; i++)
 277                         div /= 10;
 278                 if (div <= 0)
 279                         return -EINVAL;
 280                 return freq->m / div;
 281         }
 282 }
 283
 284 int cfg80211_wext_siwrts(struct net_device *dev,
 285                          struct iw_request_info *info,
 286                          struct iw_param *rts, char *extra)
 287 {
 288         struct wireless_dev *wdev = dev->ieee80211_ptr;
 289         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
 290         u32 orts = wdev->wiphy->rts_threshold;
 291         int err;
 292
 293         if (rts->disabled || !rts->fixed)
 294                 wdev->wiphy->rts_threshold = (u32) -1;
 295         else if (rts->value < 0)
 296                 return -EINVAL;
 297         else
 298                 wdev->wiphy->rts_threshold = rts->value;
 299
 300         err = rdev_set_wiphy_params(rdev, WIPHY_PARAM_RTS_THRESHOLD);
 301         if (err)
 302                 wdev->wiphy->rts_threshold = orts;
 303
 304         return err;
 305 }
 306 EXPORT_SYMBOL_GPL(cfg80211_wext_siwrts);
 307
 308 int cfg80211_wext_giwrts(struct net_device *dev,
 309                          struct iw_request_info *info,
 310                          struct iw_param *rts, char *extra)
 311 {
 312         struct wireless_dev *wdev = dev->ieee80211_ptr;
 313
 314         rts->value = wdev->wiphy->rts_threshold;
 315         rts->disabled = rts->value == (u32) -1;
 316         rts->fixed = 1;
 317
 318         return 0;
 319 }
 320 EXPORT_SYMBOL_GPL(cfg80211_wext_giwrts);
 321
 322 int cfg80211_wext_siwfrag(struct net_device *dev,
 323                           struct iw_request_info *info,
 324                           struct iw_param *frag, char *extra)
 325 {
 326         struct wireless_dev *wdev = dev->ieee80211_ptr;
 327         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
 328         u32 ofrag = wdev->wiphy->frag_threshold;
 329         int err;
 330
 331         if (frag->disabled || !frag->fixed)
 332                 wdev->wiphy->frag_threshold = (u32) -1;
 333         else if (frag->value < 256)
 334                 return -EINVAL;
 335         else {
 336                 /* Fragment length must be even, so strip LSB. */
 337                 wdev->wiphy->frag_threshold = frag->value & ~0x1;
 338         }
 339
 340         err = rdev_set_wiphy_params(rdev, WIPHY_PARAM_FRAG_THRESHOLD);
 341         if (err)
 342                 wdev->wiphy->frag_threshold = ofrag;
 343
 344         return err;
 345 }
 346 EXPORT_SYMBOL_GPL(cfg80211_wext_siwfrag);
 347
 348 int cfg80211_wext_giwfrag(struct net_device *dev,
 349                           struct iw_request_info *info,
 350                           struct iw_param *frag, char *extra)
 351 {
 352         struct wireless_dev *wdev = dev->ieee80211_ptr;
 353
 354         frag->value = wdev->wiphy->frag_threshold;
 355         frag->disabled = frag->value == (u32) -1;
 356         frag->fixed = 1;
 357
 358         return 0;
 359 }
 360 EXPORT_SYMBOL_GPL(cfg80211_wext_giwfrag);
 361
 362 static int cfg80211_wext_siwretry(struct net_device *dev,
 363                                   struct iw_request_info *info,
 364                                   struct iw_param *retry, char *extra)
 365 {
 366         struct wireless_dev *wdev = dev->ieee80211_ptr;
 367         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
 368         u32 changed = 0;
 369         u8 olong = wdev->wiphy->retry_long;
 370         u8 oshort = wdev->wiphy->retry_short;
 371         int err;
 372
 373         if (retry->disabled ||
 374             (retry->flags & IW_RETRY_TYPE) != IW_RETRY_LIMIT)
 375                 return -EINVAL;
 376
 377         if (retry->flags & IW_RETRY_LONG) {
 378                 wdev->wiphy->retry_long = retry->value;
 379                 changed |= WIPHY_PARAM_RETRY_LONG;
 380         } else if (retry->flags & IW_RETRY_SHORT) {
 381                 wdev->wiphy->retry_short = retry->value;
 382                 changed |= WIPHY_PARAM_RETRY_SHORT;
 383         } else {
 384                 wdev->wiphy->retry_short = retry->value;
 385                 wdev->wiphy->retry_long = retry->value;
 386                 changed |= WIPHY_PARAM_RETRY_LONG;
 387                 changed |= WIPHY_PARAM_RETRY_SHORT;
 388         }
 389
 390         if (!changed)
 391                 return 0;
 392
 393         err = rdev_set_wiphy_params(rdev, changed);
 394         if (err) {
 395                 wdev->wiphy->retry_short = oshort;
 396                 wdev->wiphy->retry_long = olong;
 397         }
 398
 399         return err;
 400 }
 401
 402 int cfg80211_wext_giwretry(struct net_device *dev,
 403                            struct iw_request_info *info,
 404                            struct iw_param *retry, char *extra)
 405 {
 406         struct wireless_dev *wdev = dev->ieee80211_ptr;
 407
 408         retry->disabled = 0;
 409
 410         if (retry->flags == 0 || (retry->flags & IW_RETRY_SHORT)) {
 411                 /*
 412                  * First return short value, iwconfig will ask long value
 413                  * later if needed
 414                  */
 415                 retry->flags |= IW_RETRY_LIMIT;
 416                 retry->value = wdev->wiphy->retry_short;
 417                 if (wdev->wiphy->retry_long != wdev->wiphy->retry_short)
 418                         retry->flags |= IW_RETRY_LONG;
 419
 420                 return 0;
 421         }
 422
 423         if (retry->flags & IW_RETRY_LONG) {
 424                 retry->flags = IW_RETRY_LIMIT | IW_RETRY_LONG;
 425                 retry->value = wdev->wiphy->retry_long;
 426         }
 427
 428         return 0;
 429 }
 430 EXPORT_SYMBOL_GPL(cfg80211_wext_giwretry);
 431
 432 static int __cfg80211_set_encryption(struct cfg80211_registered_device *rdev,
 433                                      struct net_device *dev, bool pairwise,
 434                                      const u8 *addr, bool remove, bool tx_key,
 435                                      int idx, struct key_params *params)
 436 {
 437         struct wireless_dev *wdev = dev->ieee80211_ptr;
 438         int err, i;
 439         bool rejoin = false;
 440
 441         if (pairwise && !addr)
 442                 return -EINVAL;
 443
 444         if (!wdev->wext.keys) {
 445                 wdev->wext.keys = kzalloc(sizeof(*wdev->wext.keys),
 446                                               GFP_KERNEL);
 447                 if (!wdev->wext.keys)
 448                         return -ENOMEM;
 449                 for (i = 0; i < 6; i++)
 450                         wdev->wext.keys->params[i].key =
 451                                 wdev->wext.keys->data[i];
 452         }
 453
 454         if (wdev->iftype != NL80211_IFTYPE_ADHOC &&
 455             wdev->iftype != NL80211_IFTYPE_STATION)
 456                 return -EOPNOTSUPP;
 457
 458         if (params->cipher == WLAN_CIPHER_SUITE_AES_CMAC) {
 459                 if (!wdev->current_bss)
 460                         return -ENOLINK;
 461
 462                 if (!rdev->ops->set_default_mgmt_key)
 463                         return -EOPNOTSUPP;
 464
 465                 if (idx < 4 || idx > 5)
 466                         return -EINVAL;
 467         } else if (idx < 0 || idx > 3)
 468                 return -EINVAL;
 469
 470         if (remove) {
 471                 err = 0;
 472                 if (wdev->current_bss) {
 473                         /*
 474                          * If removing the current TX key, we will need to
 475                          * join a new IBSS without the privacy bit clear.
 476                          */
 477                         if (idx == wdev->wext.default_key &&
 478                             wdev->iftype == NL80211_IFTYPE_ADHOC) {
 479                                 __cfg80211_leave_ibss(rdev, wdev->netdev, true);
 480                                 rejoin = true;
 481                         }
 482
 483                         if (!pairwise && addr &&
 484                             !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
 485                                 err = -ENOENT;
 486                         else
 487                                 err = rdev_del_key(rdev, dev, idx, pairwise,
 488                                                    addr);
 489                 }
 490                 wdev->wext.connect.privacy = false;
 491                 /*
 492                  * Applications using wireless extensions expect to be
 493                  * able to delete keys that don't exist, so allow that.
 494                  */
 495                 if (err == -ENOENT)
 496                         err = 0;
 497                 if (!err) {
 498                         if (!addr) {
 499                                 wdev->wext.keys->params[idx].key_len = 0;
 500                                 wdev->wext.keys->params[idx].cipher = 0;
 501                         }
 502                         if (idx == wdev->wext.default_key)
 503                                 wdev->wext.default_key = -1;
 504                         else if (idx == wdev->wext.default_mgmt_key)
 505                                 wdev->wext.default_mgmt_key = -1;
 506                 }
 507
 508                 if (!err && rejoin)
 509                         err = cfg80211_ibss_wext_join(rdev, wdev);
 510
 511                 return err;
 512         }
 513
 514         if (addr)
 515                 tx_key = false;
 516
 517         if (cfg80211_validate_key_settings(rdev, params, idx, pairwise, addr))
 518                 return -EINVAL;
 519
 520         err = 0;
 521         if (wdev->current_bss)
 522                 err = rdev_add_key(rdev, dev, idx, pairwise, addr, params);
 523         if (err)
 524                 return err;
 525
 526         if (!addr) {
 527                 wdev->wext.keys->params[idx] = *params;
 528                 memcpy(wdev->wext.keys->data[idx],
 529                         params->key, params->key_len);
 530                 wdev->wext.keys->params[idx].key =
 531                         wdev->wext.keys->data[idx];
 532         }
 533
 534         if ((params->cipher == WLAN_CIPHER_SUITE_WEP40 ||
 535              params->cipher == WLAN_CIPHER_SUITE_WEP104) &&
 536             (tx_key || (!addr && wdev->wext.default_key == -1))) {
 537                 if (wdev->current_bss) {
 538                         /*
 539                          * If we are getting a new TX key from not having
 540                          * had one before we need to join a new IBSS with
 541                          * the privacy bit set.
 542                          */
 543                         if (wdev->iftype == NL80211_IFTYPE_ADHOC &&
 544                             wdev->wext.default_key == -1) {
 545                                 __cfg80211_leave_ibss(rdev, wdev->netdev, true);
 546                                 rejoin = true;
 547                         }
 548                         err = rdev_set_default_key(rdev, dev, idx, true, true);
 549                 }
 550                 if (!err) {
 551                         wdev->wext.default_key = idx;
 552                         if (rejoin)
 553                                 err = cfg80211_ibss_wext_join(rdev, wdev);
 554                 }
 555                 return err;
 556         }
 557
 558         if (params->cipher == WLAN_CIPHER_SUITE_AES_CMAC &&
 559             (tx_key || (!addr && wdev->wext.default_mgmt_key == -1))) {
 560                 if (wdev->current_bss)
 561                         err = rdev_set_default_mgmt_key(rdev, dev, idx);
 562                 if (!err)
 563                         wdev->wext.default_mgmt_key = idx;
 564                 return err;
 565         }
 566
 567         return 0;
 568 }
 569
 570 static int cfg80211_set_encryption(struct cfg80211_registered_device *rdev,
 571                                    struct net_device *dev, bool pairwise,
 572                                    const u8 *addr, bool remove, bool tx_key,
 573                                    int idx, struct key_params *params)
 574 {
 575         int err;
 576
 577         wdev_lock(dev->ieee80211_ptr);
 578         err = __cfg80211_set_encryption(rdev, dev, pairwise, addr,
 579                                         remove, tx_key, idx, params);
 580         wdev_unlock(dev->ieee80211_ptr);
 581
 582         return err;
 583 }
 584
 585 static int cfg80211_wext_siwencode(struct net_device *dev,
 586                                    struct iw_request_info *info,
 587                                    struct iw_point *erq, char *keybuf)
 588 {
 589         struct wireless_dev *wdev = dev->ieee80211_ptr;
 590         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
 591         int idx, err;
 592         bool remove = false;
 593         struct key_params params;
 594
 595         if (wdev->iftype != NL80211_IFTYPE_STATION &&
 596             wdev->iftype != NL80211_IFTYPE_ADHOC)
 597                 return -EOPNOTSUPP;
 598
 599         /* no use -- only MFP (set_default_mgmt_key) is optional */
 600         if (!rdev->ops->del_key ||
 601             !rdev->ops->add_key ||
 602             !rdev->ops->set_default_key)
 603                 return -EOPNOTSUPP;
 604
 605         idx = erq->flags & IW_ENCODE_INDEX;
 606         if (idx == 0) {
 607                 idx = wdev->wext.default_key;
 608                 if (idx < 0)
 609                         idx = 0;
 610         } else if (idx < 1 || idx > 4)
 611                 return -EINVAL;
 612         else
 613                 idx--;
 614
 615         if (erq->flags & IW_ENCODE_DISABLED)
 616                 remove = true;
 617         else if (erq->length == 0) {
 618                 /* No key data - just set the default TX key index */
 619                 err = 0;
 620                 wdev_lock(wdev);
 621                 if (wdev->current_bss)
 622                         err = rdev_set_default_key(rdev, dev, idx, true,
 623                                                    true);
 624                 if (!err)
 625                         wdev->wext.default_key = idx;
 626                 wdev_unlock(wdev);
 627                 return err;
 628         }
 629
 630         memset(&params, 0, sizeof(params));
 631         params.key = keybuf;
 632         params.key_len = erq->length;
 633         if (erq->length == 5)
 634                 params.cipher = WLAN_CIPHER_SUITE_WEP40;
 635         else if (erq->length == 13)
 636                 params.cipher = WLAN_CIPHER_SUITE_WEP104;
 637         else if (!remove)
 638                 return -EINVAL;
 639
 640         return cfg80211_set_encryption(rdev, dev, false, NULL, remove,
 641                                        wdev->wext.default_key == -1,
 642                                        idx, &params);
 643 }
 644
 645 static int cfg80211_wext_siwencodeext(struct net_device *dev,
 646                                       struct iw_request_info *info,
 647                                       struct iw_point *erq, char *extra)
 648 {
 649         struct wireless_dev *wdev = dev->ieee80211_ptr;
 650         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
 651         struct iw_encode_ext *ext = (struct iw_encode_ext *) extra;
 652         const u8 *addr;
 653         int idx;
 654         bool remove = false;
 655         struct key_params params;
 656         u32 cipher;
 657
 658         if (wdev->iftype != NL80211_IFTYPE_STATION &&
 659             wdev->iftype != NL80211_IFTYPE_ADHOC)
 660                 return -EOPNOTSUPP;
 661
 662         /* no use -- only MFP (set_default_mgmt_key) is optional */
 663         if (!rdev->ops->del_key ||
 664             !rdev->ops->add_key ||
 665             !rdev->ops->set_default_key)
 666                 return -EOPNOTSUPP;
 667
 668         switch (ext->alg) {
 669         case IW_ENCODE_ALG_NONE:
 670                 remove = true;
 671                 cipher = 0;
 672                 break;
 673         case IW_ENCODE_ALG_WEP:
 674                 if (ext->key_len == 5)
 675                         cipher = WLAN_CIPHER_SUITE_WEP40;
 676                 else if (ext->key_len == 13)
 677                         cipher = WLAN_CIPHER_SUITE_WEP104;
 678                 else
 679                         return -EINVAL;
 680                 break;
 681         case IW_ENCODE_ALG_TKIP:
 682                 cipher = WLAN_CIPHER_SUITE_TKIP;
 683                 break;
 684         case IW_ENCODE_ALG_CCMP:
 685                 cipher = WLAN_CIPHER_SUITE_CCMP;
 686                 break;
 687         case IW_ENCODE_ALG_AES_CMAC:
 688                 cipher = WLAN_CIPHER_SUITE_AES_CMAC;
 689                 break;
 690         default:
 691                 return -EOPNOTSUPP;
 692         }
 693
 694         if (erq->flags & IW_ENCODE_DISABLED)
 695                 remove = true;
 696
 697         idx = erq->flags & IW_ENCODE_INDEX;
 698         if (cipher == WLAN_CIPHER_SUITE_AES_CMAC) {
 699                 if (idx < 4 || idx > 5) {
 700                         idx = wdev->wext.default_mgmt_key;
 701                         if (idx < 0)
 702                                 return -EINVAL;
 703                 } else
 704                         idx--;
 705         } else {
 706                 if (idx < 1 || idx > 4) {
 707                         idx = wdev->wext.default_key;
 708                         if (idx < 0)
 709                                 return -EINVAL;
 710                 } else
 711                         idx--;
 712         }
 713
 714         addr = ext->addr.sa_data;
 715         if (is_broadcast_ether_addr(addr))
 716                 addr = NULL;
 717
 718         memset(&params, 0, sizeof(params));
 719         params.key = ext->key;
 720         params.key_len = ext->key_len;
 721         params.cipher = cipher;
 722
 723         if (ext->ext_flags & IW_ENCODE_EXT_RX_SEQ_VALID) {
 724                 params.seq = ext->rx_seq;
 725                 params.seq_len = 6;
 726         }
 727
 728         return cfg80211_set_encryption(
 729                         rdev, dev,
 730                         !(ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY),
 731                         addr, remove,
 732                         ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY,
 733                         idx, &params);
 734 }
 735
 736 static int cfg80211_wext_giwencode(struct net_device *dev,
 737                                    struct iw_request_info *info,
 738                                    struct iw_point *erq, char *keybuf)
 739 {
 740         struct wireless_dev *wdev = dev->ieee80211_ptr;
 741         int idx;
 742
 743         if (wdev->iftype != NL80211_IFTYPE_STATION &&
 744             wdev->iftype != NL80211_IFTYPE_ADHOC)
 745                 return -EOPNOTSUPP;
 746
 747         idx = erq->flags & IW_ENCODE_INDEX;
 748         if (idx == 0) {
 749                 idx = wdev->wext.default_key;
 750                 if (idx < 0)
 751                         idx = 0;
 752         } else if (idx < 1 || idx > 4)
 753                 return -EINVAL;
 754         else
 755                 idx--;
 756
 757         erq->flags = idx + 1;
 758
 759         if (!wdev->wext.keys || !wdev->wext.keys->params[idx].cipher) {
 760                 erq->flags |= IW_ENCODE_DISABLED;
 761                 erq->length = 0;
 762                 return 0;
 763         }
 764
 765         erq->length = min_t(size_t, erq->length,
 766                             wdev->wext.keys->params[idx].key_len);
 767         memcpy(keybuf, wdev->wext.keys->params[idx].key, erq->length);
 768         erq->flags |= IW_ENCODE_ENABLED;
 769
 770         return 0;
 771 }
 772
 773 static int cfg80211_wext_siwfreq(struct net_device *dev,
 774                                  struct iw_request_info *info,
 775                                  struct iw_freq *wextfreq, char *extra)
 776 {
 777         struct wireless_dev *wdev = dev->ieee80211_ptr;
 778         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
 779         struct cfg80211_chan_def chandef = {
 780                 .width = NL80211_CHAN_WIDTH_20_NOHT,
 781         };
 782         int freq;
 783
 784         switch (wdev->iftype) {
 785         case NL80211_IFTYPE_STATION:
 786                 return cfg80211_mgd_wext_siwfreq(dev, info, wextfreq, extra);
 787         case NL80211_IFTYPE_ADHOC:
 788                 return cfg80211_ibss_wext_siwfreq(dev, info, wextfreq, extra);
 789         case NL80211_IFTYPE_MONITOR:
 790                 freq = cfg80211_wext_freq(wdev->wiphy, wextfreq);
 791                 if (freq < 0)
 792                         return freq;
 793                 if (freq == 0)
 794                         return -EINVAL;
 795                 chandef.center_freq1 = freq;
 796                 chandef.chan = ieee80211_get_channel(&rdev->wiphy, freq);
 797                 if (!chandef.chan)
 798                         return -EINVAL;
 799                 return cfg80211_set_monitor_channel(rdev, &chandef);
 800         case NL80211_IFTYPE_MESH_POINT:
 801                 freq = cfg80211_wext_freq(wdev->wiphy, wextfreq);
 802                 if (freq < 0)
 803                         return freq;
 804                 if (freq == 0)
 805                         return -EINVAL;
 806                 chandef.center_freq1 = freq;
 807                 chandef.chan = ieee80211_get_channel(&rdev->wiphy, freq);
 808                 if (!chandef.chan)
 809                         return -EINVAL;
 810                 return cfg80211_set_mesh_channel(rdev, wdev, &chandef);
 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         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
 822         struct cfg80211_chan_def chandef;
 823         int ret;
 824
 825         switch (wdev->iftype) {
 826         case NL80211_IFTYPE_STATION:
 827                 return cfg80211_mgd_wext_giwfreq(dev, info, freq, extra);
 828         case NL80211_IFTYPE_ADHOC:
 829                 return cfg80211_ibss_wext_giwfreq(dev, info, freq, extra);
 830         case NL80211_IFTYPE_MONITOR:
 831                 if (!rdev->ops->get_channel)
 832                         return -EINVAL;
 833
 834                 ret = rdev_get_channel(rdev, wdev, &chandef);
 835                 if (ret)
 836                         return ret;
 837                 freq->m = chandef.chan->center_freq;
 838                 freq->e = 6;
 839                 return 0;
 840         default:
 841                 return -EINVAL;
 842         }
 843 }
 844
 845 static int cfg80211_wext_siwtxpower(struct net_device *dev,
 846                                     struct iw_request_info *info,
 847                                     union iwreq_data *data, char *extra)
 848 {
 849         struct wireless_dev *wdev = dev->ieee80211_ptr;
 850         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
 851         enum nl80211_tx_power_setting type;
 852         int dbm = 0;
 853
 854         if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM)
 855                 return -EINVAL;
 856         if (data->txpower.flags & IW_TXPOW_RANGE)
 857                 return -EINVAL;
 858
 859         if (!rdev->ops->set_tx_power)
 860                 return -EOPNOTSUPP;
 861
 862         /* only change when not disabling */
 863         if (!data->txpower.disabled) {
 864                 rfkill_set_sw_state(rdev->rfkill, false);
 865
 866                 if (data->txpower.fixed) {
 867                         /*
 868                          * wext doesn't support negative values, see
 869                          * below where it's for automatic
 870                          */
 871                         if (data->txpower.value < 0)
 872                                 return -EINVAL;
 873                         dbm = data->txpower.value;
 874                         type = NL80211_TX_POWER_FIXED;
 875                         /* TODO: do regulatory check! */
 876                 } else {
 877                         /*
 878                          * Automatic power level setting, max being the value
 879                          * passed in from userland.
 880                          */
 881                         if (data->txpower.value < 0) {
 882                                 type = NL80211_TX_POWER_AUTOMATIC;
 883                         } else {
 884                                 dbm = data->txpower.value;
 885                                 type = NL80211_TX_POWER_LIMITED;
 886                         }
 887                 }
 888         } else {
 889                 rfkill_set_sw_state(rdev->rfkill, true);
 890                 schedule_work(&rdev->rfkill_sync);
 891                 return 0;
 892         }
 893
 894         return rdev_set_tx_power(rdev, wdev, type, DBM_TO_MBM(dbm));
 895 }
 896
 897 static int cfg80211_wext_giwtxpower(struct net_device *dev,
 898                                     struct iw_request_info *info,
 899                                     union iwreq_data *data, char *extra)
 900 {
 901         struct wireless_dev *wdev = dev->ieee80211_ptr;
 902         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
 903         int err, val;
 904
 905         if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM)
 906                 return -EINVAL;
 907         if (data->txpower.flags & IW_TXPOW_RANGE)
 908                 return -EINVAL;
 909
 910         if (!rdev->ops->get_tx_power)
 911                 return -EOPNOTSUPP;
 912
 913         err = rdev_get_tx_power(rdev, wdev, &val);
 914         if (err)
 915                 return err;
 916
 917         /* well... oh well */
 918         data->txpower.fixed = 1;
 919         data->txpower.disabled = rfkill_blocked(rdev->rfkill);
 920         data->txpower.value = val;
 921         data->txpower.flags = IW_TXPOW_DBM;
 922
 923         return 0;
 924 }
 925
 926 static int cfg80211_set_auth_alg(struct wireless_dev *wdev,
 927                                  s32 auth_alg)
 928 {
 929         int nr_alg = 0;
 930
 931         if (!auth_alg)
 932                 return -EINVAL;
 933
 934         if (auth_alg & ~(IW_AUTH_ALG_OPEN_SYSTEM |
 935                          IW_AUTH_ALG_SHARED_KEY |
 936                          IW_AUTH_ALG_LEAP))
 937                 return -EINVAL;
 938
 939         if (auth_alg & IW_AUTH_ALG_OPEN_SYSTEM) {
 940                 nr_alg++;
 941                 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
 942         }
 943
 944         if (auth_alg & IW_AUTH_ALG_SHARED_KEY) {
 945                 nr_alg++;
 946                 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_SHARED_KEY;
 947         }
 948
 949         if (auth_alg & IW_AUTH_ALG_LEAP) {
 950                 nr_alg++;
 951                 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_NETWORK_EAP;
 952         }
 953
 954         if (nr_alg > 1)
 955                 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
 956
 957         return 0;
 958 }
 959
 960 static int cfg80211_set_wpa_version(struct wireless_dev *wdev, u32 wpa_versions)
 961 {
 962         if (wpa_versions & ~(IW_AUTH_WPA_VERSION_WPA |
 963                              IW_AUTH_WPA_VERSION_WPA2|
 964                              IW_AUTH_WPA_VERSION_DISABLED))
 965                 return -EINVAL;
 966
 967         if ((wpa_versions & IW_AUTH_WPA_VERSION_DISABLED) &&
 968             (wpa_versions & (IW_AUTH_WPA_VERSION_WPA|
 969                              IW_AUTH_WPA_VERSION_WPA2)))
 970                 return -EINVAL;
 971
 972         if (wpa_versions & IW_AUTH_WPA_VERSION_DISABLED)
 973                 wdev->wext.connect.crypto.wpa_versions &=
 974                         ~(NL80211_WPA_VERSION_1|NL80211_WPA_VERSION_2);
 975
 976         if (wpa_versions & IW_AUTH_WPA_VERSION_WPA)
 977                 wdev->wext.connect.crypto.wpa_versions |=
 978                         NL80211_WPA_VERSION_1;
 979
 980         if (wpa_versions & IW_AUTH_WPA_VERSION_WPA2)
 981                 wdev->wext.connect.crypto.wpa_versions |=
 982                         NL80211_WPA_VERSION_2;
 983
 984         return 0;
 985 }
 986
 987 static int cfg80211_set_cipher_group(struct wireless_dev *wdev, u32 cipher)
 988 {
 989         if (cipher & IW_AUTH_CIPHER_WEP40)
 990                 wdev->wext.connect.crypto.cipher_group =
 991                         WLAN_CIPHER_SUITE_WEP40;
 992         else if (cipher & IW_AUTH_CIPHER_WEP104)
 993                 wdev->wext.connect.crypto.cipher_group =
 994                         WLAN_CIPHER_SUITE_WEP104;
 995         else if (cipher & IW_AUTH_CIPHER_TKIP)
 996                 wdev->wext.connect.crypto.cipher_group =
 997                         WLAN_CIPHER_SUITE_TKIP;
 998         else if (cipher & IW_AUTH_CIPHER_CCMP)
 999                 wdev->wext.connect.crypto.cipher_group =
1000                         WLAN_CIPHER_SUITE_CCMP;
1001         else if (cipher & IW_AUTH_CIPHER_AES_CMAC)
1002                 wdev->wext.connect.crypto.cipher_group =
1003                         WLAN_CIPHER_SUITE_AES_CMAC;
1004         else if (cipher & IW_AUTH_CIPHER_NONE)
1005                 wdev->wext.connect.crypto.cipher_group = 0;
1006         else
1007                 return -EINVAL;
1008
1009         return 0;
1010 }
1011
1012 static int cfg80211_set_cipher_pairwise(struct wireless_dev *wdev, u32 cipher)
1013 {
1014         int nr_ciphers = 0;
1015         u32 *ciphers_pairwise = wdev->wext.connect.crypto.ciphers_pairwise;
1016
1017         if (cipher & IW_AUTH_CIPHER_WEP40) {
1018                 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_WEP40;
1019                 nr_ciphers++;
1020         }
1021
1022         if (cipher & IW_AUTH_CIPHER_WEP104) {
1023                 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_WEP104;
1024                 nr_ciphers++;
1025         }
1026
1027         if (cipher & IW_AUTH_CIPHER_TKIP) {
1028                 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_TKIP;
1029                 nr_ciphers++;
1030         }
1031
1032         if (cipher & IW_AUTH_CIPHER_CCMP) {
1033                 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_CCMP;
1034                 nr_ciphers++;
1035         }
1036
1037         if (cipher & IW_AUTH_CIPHER_AES_CMAC) {
1038                 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_AES_CMAC;
1039                 nr_ciphers++;
1040         }
1041
1042         BUILD_BUG_ON(NL80211_MAX_NR_CIPHER_SUITES < 5);
1043
1044         wdev->wext.connect.crypto.n_ciphers_pairwise = nr_ciphers;
1045
1046         return 0;
1047 }
1048
1049
1050 static int cfg80211_set_key_mgt(struct wireless_dev *wdev, u32 key_mgt)
1051 {
1052         int nr_akm_suites = 0;
1053
1054         if (key_mgt & ~(IW_AUTH_KEY_MGMT_802_1X |
1055                         IW_AUTH_KEY_MGMT_PSK))
1056                 return -EINVAL;
1057
1058         if (key_mgt & IW_AUTH_KEY_MGMT_802_1X) {
1059                 wdev->wext.connect.crypto.akm_suites[nr_akm_suites] =
1060                         WLAN_AKM_SUITE_8021X;
1061                 nr_akm_suites++;
1062         }
1063
1064         if (key_mgt & IW_AUTH_KEY_MGMT_PSK) {
1065                 wdev->wext.connect.crypto.akm_suites[nr_akm_suites] =
1066                         WLAN_AKM_SUITE_PSK;
1067                 nr_akm_suites++;
1068         }
1069
1070         wdev->wext.connect.crypto.n_akm_suites = nr_akm_suites;
1071
1072         return 0;
1073 }
1074
1075 static int cfg80211_wext_siwauth(struct net_device *dev,
1076                                  struct iw_request_info *info,
1077                                  struct iw_param *data, char *extra)
1078 {
1079         struct wireless_dev *wdev = dev->ieee80211_ptr;
1080
1081         if (wdev->iftype != NL80211_IFTYPE_STATION)
1082                 return -EOPNOTSUPP;
1083
1084         switch (data->flags & IW_AUTH_INDEX) {
1085         case IW_AUTH_PRIVACY_INVOKED:
1086                 wdev->wext.connect.privacy = data->value;
1087                 return 0;
1088         case IW_AUTH_WPA_VERSION:
1089                 return cfg80211_set_wpa_version(wdev, data->value);
1090         case IW_AUTH_CIPHER_GROUP:
1091                 return cfg80211_set_cipher_group(wdev, data->value);
1092         case IW_AUTH_KEY_MGMT:
1093                 return cfg80211_set_key_mgt(wdev, data->value);
1094         case IW_AUTH_CIPHER_PAIRWISE:
1095                 return cfg80211_set_cipher_pairwise(wdev, data->value);
1096         case IW_AUTH_80211_AUTH_ALG:
1097                 return cfg80211_set_auth_alg(wdev, data->value);
1098         case IW_AUTH_WPA_ENABLED:
1099         case IW_AUTH_RX_UNENCRYPTED_EAPOL:
1100         case IW_AUTH_DROP_UNENCRYPTED:
1101         case IW_AUTH_MFP:
1102                 return 0;
1103         default:
1104                 return -EOPNOTSUPP;
1105         }
1106 }
1107
1108 static int cfg80211_wext_giwauth(struct net_device *dev,
1109                                  struct iw_request_info *info,
1110                                  struct iw_param *data, char *extra)
1111 {
1112         /* XXX: what do we need? */
1113
1114         return -EOPNOTSUPP;
1115 }
1116
1117 static int cfg80211_wext_siwpower(struct net_device *dev,
1118                                   struct iw_request_info *info,
1119                                   struct iw_param *wrq, char *extra)
1120 {
1121         struct wireless_dev *wdev = dev->ieee80211_ptr;
1122         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1123         bool ps = wdev->ps;
1124         int timeout = wdev->ps_timeout;
1125         int err;
1126
1127         if (wdev->iftype != NL80211_IFTYPE_STATION)
1128                 return -EINVAL;
1129
1130         if (!rdev->ops->set_power_mgmt)
1131                 return -EOPNOTSUPP;
1132
1133         if (wrq->disabled) {
1134                 ps = false;
1135         } else {
1136                 switch (wrq->flags & IW_POWER_MODE) {
1137                 case IW_POWER_ON:       /* If not specified */
1138                 case IW_POWER_MODE:     /* If set all mask */
1139                 case IW_POWER_ALL_R:    /* If explicitely state all */
1140                         ps = true;
1141                         break;
1142                 default:                /* Otherwise we ignore */
1143                         return -EINVAL;
1144                 }
1145
1146                 if (wrq->flags & ~(IW_POWER_MODE | IW_POWER_TIMEOUT))
1147                         return -EINVAL;
1148
1149                 if (wrq->flags & IW_POWER_TIMEOUT)
1150                         timeout = wrq->value / 1000;
1151         }
1152
1153         err = rdev_set_power_mgmt(rdev, dev, ps, timeout);
1154         if (err)
1155                 return err;
1156
1157         wdev->ps = ps;
1158         wdev->ps_timeout = timeout;
1159
1160         return 0;
1161
1162 }
1163
1164 static int cfg80211_wext_giwpower(struct net_device *dev,
1165                                   struct iw_request_info *info,
1166                                   struct iw_param *wrq, char *extra)
1167 {
1168         struct wireless_dev *wdev = dev->ieee80211_ptr;
1169
1170         wrq->disabled = !wdev->ps;
1171
1172         return 0;
1173 }
1174
1175 static int cfg80211_wds_wext_siwap(struct net_device *dev,
1176                                    struct iw_request_info *info,
1177                                    struct sockaddr *addr, char *extra)
1178 {
1179         struct wireless_dev *wdev = dev->ieee80211_ptr;
1180         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1181         int err;
1182
1183         if (WARN_ON(wdev->iftype != NL80211_IFTYPE_WDS))
1184                 return -EINVAL;
1185
1186         if (addr->sa_family != ARPHRD_ETHER)
1187                 return -EINVAL;
1188
1189         if (netif_running(dev))
1190                 return -EBUSY;
1191
1192         if (!rdev->ops->set_wds_peer)
1193                 return -EOPNOTSUPP;
1194
1195         err = rdev_set_wds_peer(rdev, dev, (u8 *)&addr->sa_data);
1196         if (err)
1197                 return err;
1198
1199         memcpy(&wdev->wext.bssid, (u8 *) &addr->sa_data, ETH_ALEN);
1200
1201         return 0;
1202 }
1203
1204 static int cfg80211_wds_wext_giwap(struct net_device *dev,
1205                                    struct iw_request_info *info,
1206                                    struct sockaddr *addr, char *extra)
1207 {
1208         struct wireless_dev *wdev = dev->ieee80211_ptr;
1209
1210         if (WARN_ON(wdev->iftype != NL80211_IFTYPE_WDS))
1211                 return -EINVAL;
1212
1213         addr->sa_family = ARPHRD_ETHER;
1214         memcpy(&addr->sa_data, wdev->wext.bssid, ETH_ALEN);
1215
1216         return 0;
1217 }
1218
1219 static int cfg80211_wext_siwrate(struct net_device *dev,
1220                                  struct iw_request_info *info,
1221                                  struct iw_param *rate, char *extra)
1222 {
1223         struct wireless_dev *wdev = dev->ieee80211_ptr;
1224         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1225         struct cfg80211_bitrate_mask mask;
1226         u32 fixed, maxrate;
1227         struct ieee80211_supported_band *sband;
1228         int band, ridx;
1229         bool match = false;
1230
1231         if (!rdev->ops->set_bitrate_mask)
1232                 return -EOPNOTSUPP;
1233
1234         memset(&mask, 0, sizeof(mask));
1235         fixed = 0;
1236         maxrate = (u32)-1;
1237
1238         if (rate->value < 0) {
1239                 /* nothing */
1240         } else if (rate->fixed) {
1241                 fixed = rate->value / 100000;
1242         } else {
1243                 maxrate = rate->value / 100000;
1244         }
1245
1246         for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
1247                 sband = wdev->wiphy->bands[band];
1248                 if (sband == NULL)
1249                         continue;
1250                 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
1251                         struct ieee80211_rate *srate = &sband->bitrates[ridx];
1252                         if (fixed == srate->bitrate) {
1253                                 mask.control[band].legacy = 1 << ridx;
1254                                 match = true;
1255                                 break;
1256                         }
1257                         if (srate->bitrate <= maxrate) {
1258                                 mask.control[band].legacy |= 1 << ridx;
1259                                 match = true;
1260                         }
1261                 }
1262         }
1263
1264         if (!match)
1265                 return -EINVAL;
1266
1267         return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
1268 }
1269
1270 static int cfg80211_wext_giwrate(struct net_device *dev,
1271                                  struct iw_request_info *info,
1272                                  struct iw_param *rate, char *extra)
1273 {
1274         struct wireless_dev *wdev = dev->ieee80211_ptr;
1275         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1276         /* we are under RTNL - globally locked - so can use a static struct */
1277         static struct station_info sinfo;
1278         u8 addr[ETH_ALEN];
1279         int err;
1280
1281         if (wdev->iftype != NL80211_IFTYPE_STATION)
1282                 return -EOPNOTSUPP;
1283
1284         if (!rdev->ops->get_station)
1285                 return -EOPNOTSUPP;
1286
1287         err = 0;
1288         wdev_lock(wdev);
1289         if (wdev->current_bss)
1290                 memcpy(addr, wdev->current_bss->pub.bssid, ETH_ALEN);
1291         else
1292                 err = -EOPNOTSUPP;
1293         wdev_unlock(wdev);
1294         if (err)
1295                 return err;
1296
1297         err = rdev_get_station(rdev, dev, addr, &sinfo);
1298         if (err)
1299                 return err;
1300
1301         if (!(sinfo.filled & STATION_INFO_TX_BITRATE))
1302                 return -EOPNOTSUPP;
1303
1304         rate->value = 100000 * cfg80211_calculate_bitrate(&sinfo.txrate);
1305
1306         return 0;
1307 }
1308
1309 /* Get wireless statistics.  Called by /proc/net/wireless and by SIOCGIWSTATS */
1310 static struct iw_statistics *cfg80211_wireless_stats(struct net_device *dev)
1311 {
1312         struct wireless_dev *wdev = dev->ieee80211_ptr;
1313         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1314         /* we are under RTNL - globally locked - so can use static structs */
1315         static struct iw_statistics wstats;
1316         static struct station_info sinfo;
1317         u8 bssid[ETH_ALEN];
1318
1319         if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION)
1320                 return NULL;
1321
1322         if (!rdev->ops->get_station)
1323                 return NULL;
1324
1325         /* Grab BSSID of current BSS, if any */
1326         wdev_lock(wdev);
1327         if (!wdev->current_bss) {
1328                 wdev_unlock(wdev);
1329                 return NULL;
1330         }
1331         memcpy(bssid, wdev->current_bss->pub.bssid, ETH_ALEN);
1332         wdev_unlock(wdev);
1333
1334         if (rdev_get_station(rdev, dev, bssid, &sinfo))
1335                 return NULL;
1336
1337         memset(&wstats, 0, sizeof(wstats));
1338
1339         switch (rdev->wiphy.signal_type) {
1340         case CFG80211_SIGNAL_TYPE_MBM:
1341                 if (sinfo.filled & STATION_INFO_SIGNAL) {
1342                         int sig = sinfo.signal;
1343                         wstats.qual.updated |= IW_QUAL_LEVEL_UPDATED;
1344                         wstats.qual.updated |= IW_QUAL_QUAL_UPDATED;
1345                         wstats.qual.updated |= IW_QUAL_DBM;
1346                         wstats.qual.level = sig;
1347                         if (sig < -110)
1348                                 sig = -110;
1349                         else if (sig > -40)
1350                                 sig = -40;
1351                         wstats.qual.qual = sig + 110;
1352                         break;
1353                 }
1354         case CFG80211_SIGNAL_TYPE_UNSPEC:
1355                 if (sinfo.filled & STATION_INFO_SIGNAL) {
1356                         wstats.qual.updated |= IW_QUAL_LEVEL_UPDATED;
1357                         wstats.qual.updated |= IW_QUAL_QUAL_UPDATED;
1358                         wstats.qual.level = sinfo.signal;
1359                         wstats.qual.qual = sinfo.signal;
1360                         break;
1361                 }
1362         default:
1363                 wstats.qual.updated |= IW_QUAL_LEVEL_INVALID;
1364                 wstats.qual.updated |= IW_QUAL_QUAL_INVALID;
1365         }
1366
1367         wstats.qual.updated |= IW_QUAL_NOISE_INVALID;
1368         if (sinfo.filled & STATION_INFO_RX_DROP_MISC)
1369                 wstats.discard.misc = sinfo.rx_dropped_misc;
1370         if (sinfo.filled & STATION_INFO_TX_FAILED)
1371                 wstats.discard.retries = sinfo.tx_failed;
1372
1373         return &wstats;
1374 }
1375
1376 static int cfg80211_wext_siwap(struct net_device *dev,
1377                                struct iw_request_info *info,
1378                                struct sockaddr *ap_addr, char *extra)
1379 {
1380         struct wireless_dev *wdev = dev->ieee80211_ptr;
1381
1382         switch (wdev->iftype) {
1383         case NL80211_IFTYPE_ADHOC:
1384                 return cfg80211_ibss_wext_siwap(dev, info, ap_addr, extra);
1385         case NL80211_IFTYPE_STATION:
1386                 return cfg80211_mgd_wext_siwap(dev, info, ap_addr, extra);
1387         case NL80211_IFTYPE_WDS:
1388                 return cfg80211_wds_wext_siwap(dev, info, ap_addr, extra);
1389         default:
1390                 return -EOPNOTSUPP;
1391         }
1392 }
1393
1394 static int cfg80211_wext_giwap(struct net_device *dev,
1395                                struct iw_request_info *info,
1396                                struct sockaddr *ap_addr, char *extra)
1397 {
1398         struct wireless_dev *wdev = dev->ieee80211_ptr;
1399
1400         switch (wdev->iftype) {
1401         case NL80211_IFTYPE_ADHOC:
1402                 return cfg80211_ibss_wext_giwap(dev, info, ap_addr, extra);
1403         case NL80211_IFTYPE_STATION:
1404                 return cfg80211_mgd_wext_giwap(dev, info, ap_addr, extra);
1405         case NL80211_IFTYPE_WDS:
1406                 return cfg80211_wds_wext_giwap(dev, info, ap_addr, extra);
1407         default:
1408                 return -EOPNOTSUPP;
1409         }
1410 }
1411
1412 static int cfg80211_wext_siwessid(struct net_device *dev,
1413                                   struct iw_request_info *info,
1414                                   struct iw_point *data, char *ssid)
1415 {
1416         struct wireless_dev *wdev = dev->ieee80211_ptr;
1417
1418         switch (wdev->iftype) {
1419         case NL80211_IFTYPE_ADHOC:
1420                 return cfg80211_ibss_wext_siwessid(dev, info, data, ssid);
1421         case NL80211_IFTYPE_STATION:
1422                 return cfg80211_mgd_wext_siwessid(dev, info, data, ssid);
1423         default:
1424                 return -EOPNOTSUPP;
1425         }
1426 }
1427
1428 static int cfg80211_wext_giwessid(struct net_device *dev,
1429                                   struct iw_request_info *info,
1430                                   struct iw_point *data, char *ssid)
1431 {
1432         struct wireless_dev *wdev = dev->ieee80211_ptr;
1433
1434         data->flags = 0;
1435         data->length = 0;
1436
1437         switch (wdev->iftype) {
1438         case NL80211_IFTYPE_ADHOC:
1439                 return cfg80211_ibss_wext_giwessid(dev, info, data, ssid);
1440         case NL80211_IFTYPE_STATION:
1441                 return cfg80211_mgd_wext_giwessid(dev, info, data, ssid);
1442         default:
1443                 return -EOPNOTSUPP;
1444         }
1445 }
1446
1447 static int cfg80211_wext_siwpmksa(struct net_device *dev,
1448                                   struct iw_request_info *info,
1449                                   struct iw_point *data, char *extra)
1450 {
1451         struct wireless_dev *wdev = dev->ieee80211_ptr;
1452         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1453         struct cfg80211_pmksa cfg_pmksa;
1454         struct iw_pmksa *pmksa = (struct iw_pmksa *)extra;
1455
1456         memset(&cfg_pmksa, 0, sizeof(struct cfg80211_pmksa));
1457
1458         if (wdev->iftype != NL80211_IFTYPE_STATION)
1459                 return -EINVAL;
1460
1461         cfg_pmksa.bssid = pmksa->bssid.sa_data;
1462         cfg_pmksa.pmkid = pmksa->pmkid;
1463
1464         switch (pmksa->cmd) {
1465         case IW_PMKSA_ADD:
1466                 if (!rdev->ops->set_pmksa)
1467                         return -EOPNOTSUPP;
1468
1469                 return rdev_set_pmksa(rdev, dev, &cfg_pmksa);
1470
1471         case IW_PMKSA_REMOVE:
1472                 if (!rdev->ops->del_pmksa)
1473                         return -EOPNOTSUPP;
1474
1475                 return rdev_del_pmksa(rdev, dev, &cfg_pmksa);
1476
1477         case IW_PMKSA_FLUSH:
1478                 if (!rdev->ops->flush_pmksa)
1479                         return -EOPNOTSUPP;
1480
1481                 return rdev_flush_pmksa(rdev, dev);
1482
1483         default:
1484                 return -EOPNOTSUPP;
1485         }
1486 }
1487
1488 static const iw_handler cfg80211_handlers[] = {
1489         [IW_IOCTL_IDX(SIOCGIWNAME)]     = (iw_handler) cfg80211_wext_giwname,
1490         [IW_IOCTL_IDX(SIOCSIWFREQ)]     = (iw_handler) cfg80211_wext_siwfreq,
1491         [IW_IOCTL_IDX(SIOCGIWFREQ)]     = (iw_handler) cfg80211_wext_giwfreq,
1492         [IW_IOCTL_IDX(SIOCSIWMODE)]     = (iw_handler) cfg80211_wext_siwmode,
1493         [IW_IOCTL_IDX(SIOCGIWMODE)]     = (iw_handler) cfg80211_wext_giwmode,
1494         [IW_IOCTL_IDX(SIOCGIWRANGE)]    = (iw_handler) cfg80211_wext_giwrange,
1495         [IW_IOCTL_IDX(SIOCSIWAP)]       = (iw_handler) cfg80211_wext_siwap,
1496         [IW_IOCTL_IDX(SIOCGIWAP)]       = (iw_handler) cfg80211_wext_giwap,
1497         [IW_IOCTL_IDX(SIOCSIWMLME)]     = (iw_handler) cfg80211_wext_siwmlme,
1498         [IW_IOCTL_IDX(SIOCSIWSCAN)]     = (iw_handler) cfg80211_wext_siwscan,
1499         [IW_IOCTL_IDX(SIOCGIWSCAN)]     = (iw_handler) cfg80211_wext_giwscan,
1500         [IW_IOCTL_IDX(SIOCSIWESSID)]    = (iw_handler) cfg80211_wext_siwessid,
1501         [IW_IOCTL_IDX(SIOCGIWESSID)]    = (iw_handler) cfg80211_wext_giwessid,
1502         [IW_IOCTL_IDX(SIOCSIWRATE)]     = (iw_handler) cfg80211_wext_siwrate,
1503         [IW_IOCTL_IDX(SIOCGIWRATE)]     = (iw_handler) cfg80211_wext_giwrate,
1504         [IW_IOCTL_IDX(SIOCSIWRTS)]      = (iw_handler) cfg80211_wext_siwrts,
1505         [IW_IOCTL_IDX(SIOCGIWRTS)]      = (iw_handler) cfg80211_wext_giwrts,
1506         [IW_IOCTL_IDX(SIOCSIWFRAG)]     = (iw_handler) cfg80211_wext_siwfrag,
1507         [IW_IOCTL_IDX(SIOCGIWFRAG)]     = (iw_handler) cfg80211_wext_giwfrag,
1508         [IW_IOCTL_IDX(SIOCSIWTXPOW)]    = (iw_handler) cfg80211_wext_siwtxpower,
1509         [IW_IOCTL_IDX(SIOCGIWTXPOW)]    = (iw_handler) cfg80211_wext_giwtxpower,
1510         [IW_IOCTL_IDX(SIOCSIWRETRY)]    = (iw_handler) cfg80211_wext_siwretry,
1511         [IW_IOCTL_IDX(SIOCGIWRETRY)]    = (iw_handler) cfg80211_wext_giwretry,
1512         [IW_IOCTL_IDX(SIOCSIWENCODE)]   = (iw_handler) cfg80211_wext_siwencode,
1513         [IW_IOCTL_IDX(SIOCGIWENCODE)]   = (iw_handler) cfg80211_wext_giwencode,
1514         [IW_IOCTL_IDX(SIOCSIWPOWER)]    = (iw_handler) cfg80211_wext_siwpower,
1515         [IW_IOCTL_IDX(SIOCGIWPOWER)]    = (iw_handler) cfg80211_wext_giwpower,
1516         [IW_IOCTL_IDX(SIOCSIWGENIE)]    = (iw_handler) cfg80211_wext_siwgenie,
1517         [IW_IOCTL_IDX(SIOCSIWAUTH)]     = (iw_handler) cfg80211_wext_siwauth,
1518         [IW_IOCTL_IDX(SIOCGIWAUTH)]     = (iw_handler) cfg80211_wext_giwauth,
1519         [IW_IOCTL_IDX(SIOCSIWENCODEEXT)]= (iw_handler) cfg80211_wext_siwencodeext,
1520         [IW_IOCTL_IDX(SIOCSIWPMKSA)]    = (iw_handler) cfg80211_wext_siwpmksa,
1521 };
1522
1523 const struct iw_handler_def cfg80211_wext_handler = {
1524         .num_standard           = ARRAY_SIZE(cfg80211_handlers),
1525         .standard               = cfg80211_handlers,
1526         .get_wireless_stats = cfg80211_wireless_stats,
1527 };