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 < 6; 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) {
 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         if (err)
 491                 return err;
 492
 493         if (!addr) {
 494                 wdev->wext.keys->params[idx] = *params;
 495                 memcpy(wdev->wext.keys->data[idx],
 496                         params->key, params->key_len);
 497                 wdev->wext.keys->params[idx].key =
 498                         wdev->wext.keys->data[idx];
 499         }
 500
 501         if ((params->cipher == WLAN_CIPHER_SUITE_WEP40 ||
 502              params->cipher == WLAN_CIPHER_SUITE_WEP104) &&
 503             (tx_key || (!addr && wdev->wext.default_key == -1))) {
 504                 if (wdev->current_bss) {
 505                         /*
 506                          * If we are getting a new TX key from not having
 507                          * had one before we need to join a new IBSS with
 508                          * the privacy bit set.
 509                          */
 510                         if (wdev->iftype == NL80211_IFTYPE_ADHOC &&
 511                             wdev->wext.default_key == -1) {
 512                                 __cfg80211_leave_ibss(rdev, wdev->netdev, true);
 513                                 rejoin = true;
 514                         }
 515                         err = rdev_set_default_key(rdev, dev, idx, true, true);
 516                 }
 517                 if (!err) {
 518                         wdev->wext.default_key = idx;
 519                         if (rejoin)
 520                                 err = cfg80211_ibss_wext_join(rdev, wdev);
 521                 }
 522                 return err;
 523         }
 524
 525         if (params->cipher == WLAN_CIPHER_SUITE_AES_CMAC &&
 526             (tx_key || (!addr && wdev->wext.default_mgmt_key == -1))) {
 527                 if (wdev->current_bss)
 528                         err = rdev_set_default_mgmt_key(rdev, dev, idx);
 529                 if (!err)
 530                         wdev->wext.default_mgmt_key = idx;
 531                 return err;
 532         }
 533
 534         return 0;
 535 }
 536
 537 static int cfg80211_set_encryption(struct cfg80211_registered_device *rdev,
 538                                    struct net_device *dev, bool pairwise,
 539                                    const u8 *addr, bool remove, bool tx_key,
 540                                    int idx, struct key_params *params)
 541 {
 542         int err;
 543
 544         wdev_lock(dev->ieee80211_ptr);
 545         err = __cfg80211_set_encryption(rdev, dev, pairwise, addr,
 546                                         remove, tx_key, idx, params);
 547         wdev_unlock(dev->ieee80211_ptr);
 548
 549         return err;
 550 }
 551
 552 static int cfg80211_wext_siwencode(struct net_device *dev,
 553                                    struct iw_request_info *info,
 554                                    struct iw_point *erq, char *keybuf)
 555 {
 556         struct wireless_dev *wdev = dev->ieee80211_ptr;
 557         struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
 558         int idx, err;
 559         bool remove = false;
 560         struct key_params params;
 561
 562         if (wdev->iftype != NL80211_IFTYPE_STATION &&
 563             wdev->iftype != NL80211_IFTYPE_ADHOC)
 564                 return -EOPNOTSUPP;
 565
 566         /* no use -- only MFP (set_default_mgmt_key) is optional */
 567         if (!rdev->ops->del_key ||
 568             !rdev->ops->add_key ||
 569             !rdev->ops->set_default_key)
 570                 return -EOPNOTSUPP;
 571
 572         idx = erq->flags & IW_ENCODE_INDEX;
 573         if (idx == 0) {
 574                 idx = wdev->wext.default_key;
 575                 if (idx < 0)
 576                         idx = 0;
 577         } else if (idx < 1 || idx > 4)
 578                 return -EINVAL;
 579         else
 580                 idx--;
 581
 582         if (erq->flags & IW_ENCODE_DISABLED)
 583                 remove = true;
 584         else if (erq->length == 0) {
 585                 /* No key data - just set the default TX key index */
 586                 err = 0;
 587                 wdev_lock(wdev);
 588                 if (wdev->current_bss)
 589                         err = rdev_set_default_key(rdev, dev, idx, true,
 590                                                    true);
 591                 if (!err)
 592                         wdev->wext.default_key = idx;
 593                 wdev_unlock(wdev);
 594                 return err;
 595         }
 596
 597         memset(&params, 0, sizeof(params));
 598         params.key = keybuf;
 599         params.key_len = erq->length;
 600         if (erq->length == 5)
 601                 params.cipher = WLAN_CIPHER_SUITE_WEP40;
 602         else if (erq->length == 13)
 603                 params.cipher = WLAN_CIPHER_SUITE_WEP104;
 604         else if (!remove)
 605                 return -EINVAL;
 606
 607         return cfg80211_set_encryption(rdev, dev, false, NULL, remove,
 608                                        wdev->wext.default_key == -1,
 609                                        idx, &params);
 610 }
 611
 612 static int cfg80211_wext_siwencodeext(struct net_device *dev,
 613                                       struct iw_request_info *info,
 614                                       struct iw_point *erq, char *extra)
 615 {
 616         struct wireless_dev *wdev = dev->ieee80211_ptr;
 617         struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
 618         struct iw_encode_ext *ext = (struct iw_encode_ext *) extra;
 619         const u8 *addr;
 620         int idx;
 621         bool remove = false;
 622         struct key_params params;
 623         u32 cipher;
 624
 625         if (wdev->iftype != NL80211_IFTYPE_STATION &&
 626             wdev->iftype != NL80211_IFTYPE_ADHOC)
 627                 return -EOPNOTSUPP;
 628
 629         /* no use -- only MFP (set_default_mgmt_key) is optional */
 630         if (!rdev->ops->del_key ||
 631             !rdev->ops->add_key ||
 632             !rdev->ops->set_default_key)
 633                 return -EOPNOTSUPP;
 634
 635         switch (ext->alg) {
 636         case IW_ENCODE_ALG_NONE:
 637                 remove = true;
 638                 cipher = 0;
 639                 break;
 640         case IW_ENCODE_ALG_WEP:
 641                 if (ext->key_len == 5)
 642                         cipher = WLAN_CIPHER_SUITE_WEP40;
 643                 else if (ext->key_len == 13)
 644                         cipher = WLAN_CIPHER_SUITE_WEP104;
 645                 else
 646                         return -EINVAL;
 647                 break;
 648         case IW_ENCODE_ALG_TKIP:
 649                 cipher = WLAN_CIPHER_SUITE_TKIP;
 650                 break;
 651         case IW_ENCODE_ALG_CCMP:
 652                 cipher = WLAN_CIPHER_SUITE_CCMP;
 653                 break;
 654         case IW_ENCODE_ALG_AES_CMAC:
 655                 cipher = WLAN_CIPHER_SUITE_AES_CMAC;
 656                 break;
 657         default:
 658                 return -EOPNOTSUPP;
 659         }
 660
 661         if (erq->flags & IW_ENCODE_DISABLED)
 662                 remove = true;
 663
 664         idx = erq->flags & IW_ENCODE_INDEX;
 665         if (cipher == WLAN_CIPHER_SUITE_AES_CMAC) {
 666                 if (idx < 4 || idx > 5) {
 667                         idx = wdev->wext.default_mgmt_key;
 668                         if (idx < 0)
 669                                 return -EINVAL;
 670                 } else
 671                         idx--;
 672         } else {
 673                 if (idx < 1 || idx > 4) {
 674                         idx = wdev->wext.default_key;
 675                         if (idx < 0)
 676                                 return -EINVAL;
 677                 } else
 678                         idx--;
 679         }
 680
 681         addr = ext->addr.sa_data;
 682         if (is_broadcast_ether_addr(addr))
 683                 addr = NULL;
 684
 685         memset(&params, 0, sizeof(params));
 686         params.key = ext->key;
 687         params.key_len = ext->key_len;
 688         params.cipher = cipher;
 689
 690         if (ext->ext_flags & IW_ENCODE_EXT_RX_SEQ_VALID) {
 691                 params.seq = ext->rx_seq;
 692                 params.seq_len = 6;
 693         }
 694
 695         return cfg80211_set_encryption(
 696                         rdev, dev,
 697                         !(ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY),
 698                         addr, remove,
 699                         ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY,
 700                         idx, &params);
 701 }
 702
 703 static int cfg80211_wext_giwencode(struct net_device *dev,
 704                                    struct iw_request_info *info,
 705                                    struct iw_point *erq, char *keybuf)
 706 {
 707         struct wireless_dev *wdev = dev->ieee80211_ptr;
 708         int idx;
 709
 710         if (wdev->iftype != NL80211_IFTYPE_STATION &&
 711             wdev->iftype != NL80211_IFTYPE_ADHOC)
 712                 return -EOPNOTSUPP;
 713
 714         idx = erq->flags & IW_ENCODE_INDEX;
 715         if (idx == 0) {
 716                 idx = wdev->wext.default_key;
 717                 if (idx < 0)
 718                         idx = 0;
 719         } else if (idx < 1 || idx > 4)
 720                 return -EINVAL;
 721         else
 722                 idx--;
 723
 724         erq->flags = idx + 1;
 725
 726         if (!wdev->wext.keys || !wdev->wext.keys->params[idx].cipher) {
 727                 erq->flags |= IW_ENCODE_DISABLED;
 728                 erq->length = 0;
 729                 return 0;
 730         }
 731
 732         erq->length = min_t(size_t, erq->length,
 733                             wdev->wext.keys->params[idx].key_len);
 734         memcpy(keybuf, wdev->wext.keys->params[idx].key, erq->length);
 735         erq->flags |= IW_ENCODE_ENABLED;
 736
 737         return 0;
 738 }
 739
 740 static int cfg80211_wext_siwfreq(struct net_device *dev,
 741                                  struct iw_request_info *info,
 742                                  struct iw_freq *wextfreq, char *extra)
 743 {
 744         struct wireless_dev *wdev = dev->ieee80211_ptr;
 745         struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
 746         struct cfg80211_chan_def chandef = {
 747                 .width = NL80211_CHAN_WIDTH_20_NOHT,
 748         };
 749         int freq;
 750
 751         switch (wdev->iftype) {
 752         case NL80211_IFTYPE_STATION:
 753                 return cfg80211_mgd_wext_siwfreq(dev, info, wextfreq, extra);
 754         case NL80211_IFTYPE_ADHOC:
 755                 return cfg80211_ibss_wext_siwfreq(dev, info, wextfreq, extra);
 756         case NL80211_IFTYPE_MONITOR:
 757                 freq = cfg80211_wext_freq(wextfreq);
 758                 if (freq < 0)
 759                         return freq;
 760                 if (freq == 0)
 761                         return -EINVAL;
 762                 chandef.center_freq1 = freq;
 763                 chandef.chan = ieee80211_get_channel(&rdev->wiphy, freq);
 764                 if (!chandef.chan)
 765                         return -EINVAL;
 766                 return cfg80211_set_monitor_channel(rdev, &chandef);
 767         case NL80211_IFTYPE_MESH_POINT:
 768                 freq = cfg80211_wext_freq(wextfreq);
 769                 if (freq < 0)
 770                         return freq;
 771                 if (freq == 0)
 772                         return -EINVAL;
 773                 chandef.center_freq1 = freq;
 774                 chandef.chan = ieee80211_get_channel(&rdev->wiphy, freq);
 775                 if (!chandef.chan)
 776                         return -EINVAL;
 777                 return cfg80211_set_mesh_channel(rdev, wdev, &chandef);
 778         default:
 779                 return -EOPNOTSUPP;
 780         }
 781 }
 782
 783 static int cfg80211_wext_giwfreq(struct net_device *dev,
 784                                  struct iw_request_info *info,
 785                                  struct iw_freq *freq, char *extra)
 786 {
 787         struct wireless_dev *wdev = dev->ieee80211_ptr;
 788         struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
 789         struct cfg80211_chan_def chandef;
 790         int ret;
 791
 792         switch (wdev->iftype) {
 793         case NL80211_IFTYPE_STATION:
 794                 return cfg80211_mgd_wext_giwfreq(dev, info, freq, extra);
 795         case NL80211_IFTYPE_ADHOC:
 796                 return cfg80211_ibss_wext_giwfreq(dev, info, freq, extra);
 797         case NL80211_IFTYPE_MONITOR:
 798                 if (!rdev->ops->get_channel)
 799                         return -EINVAL;
 800
 801                 ret = rdev_get_channel(rdev, wdev, &chandef);
 802                 if (ret)
 803                         return ret;
 804                 freq->m = chandef.chan->center_freq;
 805                 freq->e = 6;
 806                 return 0;
 807         default:
 808                 return -EINVAL;
 809         }
 810 }
 811
 812 static int cfg80211_wext_siwtxpower(struct net_device *dev,
 813                                     struct iw_request_info *info,
 814                                     union iwreq_data *data, char *extra)
 815 {
 816         struct wireless_dev *wdev = dev->ieee80211_ptr;
 817         struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
 818         enum nl80211_tx_power_setting type;
 819         int dbm = 0;
 820
 821         if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM)
 822                 return -EINVAL;
 823         if (data->txpower.flags & IW_TXPOW_RANGE)
 824                 return -EINVAL;
 825
 826         if (!rdev->ops->set_tx_power)
 827                 return -EOPNOTSUPP;
 828
 829         /* only change when not disabling */
 830         if (!data->txpower.disabled) {
 831                 rfkill_set_sw_state(rdev->rfkill, false);
 832
 833                 if (data->txpower.fixed) {
 834                         /*
 835                          * wext doesn't support negative values, see
 836                          * below where it's for automatic
 837                          */
 838                         if (data->txpower.value < 0)
 839                                 return -EINVAL;
 840                         dbm = data->txpower.value;
 841                         type = NL80211_TX_POWER_FIXED;
 842                         /* TODO: do regulatory check! */
 843                 } else {
 844                         /*
 845                          * Automatic power level setting, max being the value
 846                          * passed in from userland.
 847                          */
 848                         if (data->txpower.value < 0) {
 849                                 type = NL80211_TX_POWER_AUTOMATIC;
 850                         } else {
 851                                 dbm = data->txpower.value;
 852                                 type = NL80211_TX_POWER_LIMITED;
 853                         }
 854                 }
 855         } else {
 856                 rfkill_set_sw_state(rdev->rfkill, true);
 857                 schedule_work(&rdev->rfkill_sync);
 858                 return 0;
 859         }
 860
 861         return rdev_set_tx_power(rdev, wdev, type, DBM_TO_MBM(dbm));
 862 }
 863
 864 static int cfg80211_wext_giwtxpower(struct net_device *dev,
 865                                     struct iw_request_info *info,
 866                                     union iwreq_data *data, char *extra)
 867 {
 868         struct wireless_dev *wdev = dev->ieee80211_ptr;
 869         struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
 870         int err, val;
 871
 872         if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM)
 873                 return -EINVAL;
 874         if (data->txpower.flags & IW_TXPOW_RANGE)
 875                 return -EINVAL;
 876
 877         if (!rdev->ops->get_tx_power)
 878                 return -EOPNOTSUPP;
 879
 880         err = rdev_get_tx_power(rdev, wdev, &val);
 881         if (err)
 882                 return err;
 883
 884         /* well... oh well */
 885         data->txpower.fixed = 1;
 886         data->txpower.disabled = rfkill_blocked(rdev->rfkill);
 887         data->txpower.value = val;
 888         data->txpower.flags = IW_TXPOW_DBM;
 889
 890         return 0;
 891 }
 892
 893 static int cfg80211_set_auth_alg(struct wireless_dev *wdev,
 894                                  s32 auth_alg)
 895 {
 896         int nr_alg = 0;
 897
 898         if (!auth_alg)
 899                 return -EINVAL;
 900
 901         if (auth_alg & ~(IW_AUTH_ALG_OPEN_SYSTEM |
 902                          IW_AUTH_ALG_SHARED_KEY |
 903                          IW_AUTH_ALG_LEAP))
 904                 return -EINVAL;
 905
 906         if (auth_alg & IW_AUTH_ALG_OPEN_SYSTEM) {
 907                 nr_alg++;
 908                 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
 909         }
 910
 911         if (auth_alg & IW_AUTH_ALG_SHARED_KEY) {
 912                 nr_alg++;
 913                 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_SHARED_KEY;
 914         }
 915
 916         if (auth_alg & IW_AUTH_ALG_LEAP) {
 917                 nr_alg++;
 918                 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_NETWORK_EAP;
 919         }
 920
 921         if (nr_alg > 1)
 922                 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
 923
 924         return 0;
 925 }
 926
 927 static int cfg80211_set_wpa_version(struct wireless_dev *wdev, u32 wpa_versions)
 928 {
 929         if (wpa_versions & ~(IW_AUTH_WPA_VERSION_WPA |
 930                              IW_AUTH_WPA_VERSION_WPA2|
 931                              IW_AUTH_WPA_VERSION_DISABLED))
 932                 return -EINVAL;
 933
 934         if ((wpa_versions & IW_AUTH_WPA_VERSION_DISABLED) &&
 935             (wpa_versions & (IW_AUTH_WPA_VERSION_WPA|
 936                              IW_AUTH_WPA_VERSION_WPA2)))
 937                 return -EINVAL;
 938
 939         if (wpa_versions & IW_AUTH_WPA_VERSION_DISABLED)
 940                 wdev->wext.connect.crypto.wpa_versions &=
 941                         ~(NL80211_WPA_VERSION_1|NL80211_WPA_VERSION_2);
 942
 943         if (wpa_versions & IW_AUTH_WPA_VERSION_WPA)
 944                 wdev->wext.connect.crypto.wpa_versions |=
 945                         NL80211_WPA_VERSION_1;
 946
 947         if (wpa_versions & IW_AUTH_WPA_VERSION_WPA2)
 948                 wdev->wext.connect.crypto.wpa_versions |=
 949                         NL80211_WPA_VERSION_2;
 950
 951         return 0;
 952 }
 953
 954 static int cfg80211_set_cipher_group(struct wireless_dev *wdev, u32 cipher)
 955 {
 956         if (cipher & IW_AUTH_CIPHER_WEP40)
 957                 wdev->wext.connect.crypto.cipher_group =
 958                         WLAN_CIPHER_SUITE_WEP40;
 959         else if (cipher & IW_AUTH_CIPHER_WEP104)
 960                 wdev->wext.connect.crypto.cipher_group =
 961                         WLAN_CIPHER_SUITE_WEP104;
 962         else if (cipher & IW_AUTH_CIPHER_TKIP)
 963                 wdev->wext.connect.crypto.cipher_group =
 964                         WLAN_CIPHER_SUITE_TKIP;
 965         else if (cipher & IW_AUTH_CIPHER_CCMP)
 966                 wdev->wext.connect.crypto.cipher_group =
 967                         WLAN_CIPHER_SUITE_CCMP;
 968         else if (cipher & IW_AUTH_CIPHER_AES_CMAC)
 969                 wdev->wext.connect.crypto.cipher_group =
 970                         WLAN_CIPHER_SUITE_AES_CMAC;
 971         else if (cipher & IW_AUTH_CIPHER_NONE)
 972                 wdev->wext.connect.crypto.cipher_group = 0;
 973         else
 974                 return -EINVAL;
 975
 976         return 0;
 977 }
 978
 979 static int cfg80211_set_cipher_pairwise(struct wireless_dev *wdev, u32 cipher)
 980 {
 981         int nr_ciphers = 0;
 982         u32 *ciphers_pairwise = wdev->wext.connect.crypto.ciphers_pairwise;
 983
 984         if (cipher & IW_AUTH_CIPHER_WEP40) {
 985                 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_WEP40;
 986                 nr_ciphers++;
 987         }
 988
 989         if (cipher & IW_AUTH_CIPHER_WEP104) {
 990                 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_WEP104;
 991                 nr_ciphers++;
 992         }
 993
 994         if (cipher & IW_AUTH_CIPHER_TKIP) {
 995                 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_TKIP;
 996                 nr_ciphers++;
 997         }
 998
 999         if (cipher & IW_AUTH_CIPHER_CCMP) {
1000                 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_CCMP;
1001                 nr_ciphers++;
1002         }
1003
1004         if (cipher & IW_AUTH_CIPHER_AES_CMAC) {
1005                 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_AES_CMAC;
1006                 nr_ciphers++;
1007         }
1008
1009         BUILD_BUG_ON(NL80211_MAX_NR_CIPHER_SUITES < 5);
1010
1011         wdev->wext.connect.crypto.n_ciphers_pairwise = nr_ciphers;
1012
1013         return 0;
1014 }
1015
1016
1017 static int cfg80211_set_key_mgt(struct wireless_dev *wdev, u32 key_mgt)
1018 {
1019         int nr_akm_suites = 0;
1020
1021         if (key_mgt & ~(IW_AUTH_KEY_MGMT_802_1X |
1022                         IW_AUTH_KEY_MGMT_PSK))
1023                 return -EINVAL;
1024
1025         if (key_mgt & IW_AUTH_KEY_MGMT_802_1X) {
1026                 wdev->wext.connect.crypto.akm_suites[nr_akm_suites] =
1027                         WLAN_AKM_SUITE_8021X;
1028                 nr_akm_suites++;
1029         }
1030
1031         if (key_mgt & IW_AUTH_KEY_MGMT_PSK) {
1032                 wdev->wext.connect.crypto.akm_suites[nr_akm_suites] =
1033                         WLAN_AKM_SUITE_PSK;
1034                 nr_akm_suites++;
1035         }
1036
1037         wdev->wext.connect.crypto.n_akm_suites = nr_akm_suites;
1038
1039         return 0;
1040 }
1041
1042 static int cfg80211_wext_siwauth(struct net_device *dev,
1043                                  struct iw_request_info *info,
1044                                  struct iw_param *data, char *extra)
1045 {
1046         struct wireless_dev *wdev = dev->ieee80211_ptr;
1047
1048         if (wdev->iftype != NL80211_IFTYPE_STATION)
1049                 return -EOPNOTSUPP;
1050
1051         switch (data->flags & IW_AUTH_INDEX) {
1052         case IW_AUTH_PRIVACY_INVOKED:
1053                 wdev->wext.connect.privacy = data->value;
1054                 return 0;
1055         case IW_AUTH_WPA_VERSION:
1056                 return cfg80211_set_wpa_version(wdev, data->value);
1057         case IW_AUTH_CIPHER_GROUP:
1058                 return cfg80211_set_cipher_group(wdev, data->value);
1059         case IW_AUTH_KEY_MGMT:
1060                 return cfg80211_set_key_mgt(wdev, data->value);
1061         case IW_AUTH_CIPHER_PAIRWISE:
1062                 return cfg80211_set_cipher_pairwise(wdev, data->value);
1063         case IW_AUTH_80211_AUTH_ALG:
1064                 return cfg80211_set_auth_alg(wdev, data->value);
1065         case IW_AUTH_WPA_ENABLED:
1066         case IW_AUTH_RX_UNENCRYPTED_EAPOL:
1067         case IW_AUTH_DROP_UNENCRYPTED:
1068         case IW_AUTH_MFP:
1069                 return 0;
1070         default:
1071                 return -EOPNOTSUPP;
1072         }
1073 }
1074
1075 static int cfg80211_wext_giwauth(struct net_device *dev,
1076                                  struct iw_request_info *info,
1077                                  struct iw_param *data, char *extra)
1078 {
1079         /* XXX: what do we need? */
1080
1081         return -EOPNOTSUPP;
1082 }
1083
1084 static int cfg80211_wext_siwpower(struct net_device *dev,
1085                                   struct iw_request_info *info,
1086                                   struct iw_param *wrq, char *extra)
1087 {
1088         struct wireless_dev *wdev = dev->ieee80211_ptr;
1089         struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
1090         bool ps = wdev->ps;
1091         int timeout = wdev->ps_timeout;
1092         int err;
1093
1094         if (wdev->iftype != NL80211_IFTYPE_STATION)
1095                 return -EINVAL;
1096
1097         if (!rdev->ops->set_power_mgmt)
1098                 return -EOPNOTSUPP;
1099
1100         if (wrq->disabled) {
1101                 ps = false;
1102         } else {
1103                 switch (wrq->flags & IW_POWER_MODE) {
1104                 case IW_POWER_ON:       /* If not specified */
1105                 case IW_POWER_MODE:     /* If set all mask */
1106                 case IW_POWER_ALL_R:    /* If explicitely state all */
1107                         ps = true;
1108                         break;
1109                 default:                /* Otherwise we ignore */
1110                         return -EINVAL;
1111                 }
1112
1113                 if (wrq->flags & ~(IW_POWER_MODE | IW_POWER_TIMEOUT))
1114                         return -EINVAL;
1115
1116                 if (wrq->flags & IW_POWER_TIMEOUT)
1117                         timeout = wrq->value / 1000;
1118         }
1119
1120         err = rdev_set_power_mgmt(rdev, dev, ps, timeout);
1121         if (err)
1122                 return err;
1123
1124         wdev->ps = ps;
1125         wdev->ps_timeout = timeout;
1126
1127         return 0;
1128
1129 }
1130
1131 static int cfg80211_wext_giwpower(struct net_device *dev,
1132                                   struct iw_request_info *info,
1133                                   struct iw_param *wrq, char *extra)
1134 {
1135         struct wireless_dev *wdev = dev->ieee80211_ptr;
1136
1137         wrq->disabled = !wdev->ps;
1138
1139         return 0;
1140 }
1141
1142 static int cfg80211_wds_wext_siwap(struct net_device *dev,
1143                                    struct iw_request_info *info,
1144                                    struct sockaddr *addr, char *extra)
1145 {
1146         struct wireless_dev *wdev = dev->ieee80211_ptr;
1147         struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
1148         int err;
1149
1150         if (WARN_ON(wdev->iftype != NL80211_IFTYPE_WDS))
1151                 return -EINVAL;
1152
1153         if (addr->sa_family != ARPHRD_ETHER)
1154                 return -EINVAL;
1155
1156         if (netif_running(dev))
1157                 return -EBUSY;
1158
1159         if (!rdev->ops->set_wds_peer)
1160                 return -EOPNOTSUPP;
1161
1162         err = rdev_set_wds_peer(rdev, dev, (u8 *)&addr->sa_data);
1163         if (err)
1164                 return err;
1165
1166         memcpy(&wdev->wext.bssid, (u8 *) &addr->sa_data, ETH_ALEN);
1167
1168         return 0;
1169 }
1170
1171 static int cfg80211_wds_wext_giwap(struct net_device *dev,
1172                                    struct iw_request_info *info,
1173                                    struct sockaddr *addr, char *extra)
1174 {
1175         struct wireless_dev *wdev = dev->ieee80211_ptr;
1176
1177         if (WARN_ON(wdev->iftype != NL80211_IFTYPE_WDS))
1178                 return -EINVAL;
1179
1180         addr->sa_family = ARPHRD_ETHER;
1181         memcpy(&addr->sa_data, wdev->wext.bssid, ETH_ALEN);
1182
1183         return 0;
1184 }
1185
1186 static int cfg80211_wext_siwrate(struct net_device *dev,
1187                                  struct iw_request_info *info,
1188                                  struct iw_param *rate, char *extra)
1189 {
1190         struct wireless_dev *wdev = dev->ieee80211_ptr;
1191         struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
1192         struct cfg80211_bitrate_mask mask;
1193         u32 fixed, maxrate;
1194         struct ieee80211_supported_band *sband;
1195         int band, ridx;
1196         bool match = false;
1197
1198         if (!rdev->ops->set_bitrate_mask)
1199                 return -EOPNOTSUPP;
1200
1201         memset(&mask, 0, sizeof(mask));
1202         fixed = 0;
1203         maxrate = (u32)-1;
1204
1205         if (rate->value < 0) {
1206                 /* nothing */
1207         } else if (rate->fixed) {
1208                 fixed = rate->value / 100000;
1209         } else {
1210                 maxrate = rate->value / 100000;
1211         }
1212
1213         for (band = 0; band < NUM_NL80211_BANDS; band++) {
1214                 sband = wdev->wiphy->bands[band];
1215                 if (sband == NULL)
1216                         continue;
1217                 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
1218                         struct ieee80211_rate *srate = &sband->bitrates[ridx];
1219                         if (fixed == srate->bitrate) {
1220                                 mask.control[band].legacy = 1 << ridx;
1221                                 match = true;
1222                                 break;
1223                         }
1224                         if (srate->bitrate <= maxrate) {
1225                                 mask.control[band].legacy |= 1 << ridx;
1226                                 match = true;
1227                         }
1228                 }
1229         }
1230
1231         if (!match)
1232                 return -EINVAL;
1233
1234         return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
1235 }
1236
1237 static int cfg80211_wext_giwrate(struct net_device *dev,
1238                                  struct iw_request_info *info,
1239                                  struct iw_param *rate, char *extra)
1240 {
1241         struct wireless_dev *wdev = dev->ieee80211_ptr;
1242         struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
1243         /* we are under RTNL - globally locked - so can use a static struct */
1244         static struct station_info sinfo;
1245         u8 addr[ETH_ALEN];
1246         int err;
1247
1248         if (wdev->iftype != NL80211_IFTYPE_STATION)
1249                 return -EOPNOTSUPP;
1250
1251         if (!rdev->ops->get_station)
1252                 return -EOPNOTSUPP;
1253
1254         err = 0;
1255         wdev_lock(wdev);
1256         if (wdev->current_bss)
1257                 memcpy(addr, wdev->current_bss->pub.bssid, ETH_ALEN);
1258         else
1259                 err = -EOPNOTSUPP;
1260         wdev_unlock(wdev);
1261         if (err)
1262                 return err;
1263
1264         err = rdev_get_station(rdev, dev, addr, &sinfo);
1265         if (err)
1266                 return err;
1267
1268         if (!(sinfo.filled & BIT(NL80211_STA_INFO_TX_BITRATE)))
1269                 return -EOPNOTSUPP;
1270
1271         rate->value = 100000 * cfg80211_calculate_bitrate(&sinfo.txrate);
1272
1273         return 0;
1274 }
1275
1276 /* Get wireless statistics.  Called by /proc/net/wireless and by SIOCGIWSTATS */
1277 static struct iw_statistics *cfg80211_wireless_stats(struct net_device *dev)
1278 {
1279         struct wireless_dev *wdev = dev->ieee80211_ptr;
1280         struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
1281         /* we are under RTNL - globally locked - so can use static structs */
1282         static struct iw_statistics wstats;
1283         static struct station_info sinfo;
1284         u8 bssid[ETH_ALEN];
1285
1286         if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION)
1287                 return NULL;
1288
1289         if (!rdev->ops->get_station)
1290                 return NULL;
1291
1292         /* Grab BSSID of current BSS, if any */
1293         wdev_lock(wdev);
1294         if (!wdev->current_bss) {
1295                 wdev_unlock(wdev);
1296                 return NULL;
1297         }
1298         memcpy(bssid, wdev->current_bss->pub.bssid, ETH_ALEN);
1299         wdev_unlock(wdev);
1300
1301         memset(&sinfo, 0, sizeof(sinfo));
1302
1303         if (rdev_get_station(rdev, dev, bssid, &sinfo))
1304                 return NULL;
1305
1306         memset(&wstats, 0, sizeof(wstats));
1307
1308         switch (rdev->wiphy.signal_type) {
1309         case CFG80211_SIGNAL_TYPE_MBM:
1310                 if (sinfo.filled & BIT(NL80211_STA_INFO_SIGNAL)) {
1311                         int sig = sinfo.signal;
1312                         wstats.qual.updated |= IW_QUAL_LEVEL_UPDATED;
1313                         wstats.qual.updated |= IW_QUAL_QUAL_UPDATED;
1314                         wstats.qual.updated |= IW_QUAL_DBM;
1315                         wstats.qual.level = sig;
1316                         if (sig < -110)
1317                                 sig = -110;
1318                         else if (sig > -40)
1319                                 sig = -40;
1320                         wstats.qual.qual = sig + 110;
1321                         break;
1322                 }
1323         case CFG80211_SIGNAL_TYPE_UNSPEC:
1324                 if (sinfo.filled & BIT(NL80211_STA_INFO_SIGNAL)) {
1325                         wstats.qual.updated |= IW_QUAL_LEVEL_UPDATED;
1326                         wstats.qual.updated |= IW_QUAL_QUAL_UPDATED;
1327                         wstats.qual.level = sinfo.signal;
1328                         wstats.qual.qual = sinfo.signal;
1329                         break;
1330                 }
1331         default:
1332                 wstats.qual.updated |= IW_QUAL_LEVEL_INVALID;
1333                 wstats.qual.updated |= IW_QUAL_QUAL_INVALID;
1334         }
1335
1336         wstats.qual.updated |= IW_QUAL_NOISE_INVALID;
1337         if (sinfo.filled & BIT(NL80211_STA_INFO_RX_DROP_MISC))
1338                 wstats.discard.misc = sinfo.rx_dropped_misc;
1339         if (sinfo.filled & BIT(NL80211_STA_INFO_TX_FAILED))
1340                 wstats.discard.retries = sinfo.tx_failed;
1341
1342         return &wstats;
1343 }
1344
1345 static int cfg80211_wext_siwap(struct net_device *dev,
1346                                struct iw_request_info *info,
1347                                struct sockaddr *ap_addr, char *extra)
1348 {
1349         struct wireless_dev *wdev = dev->ieee80211_ptr;
1350
1351         switch (wdev->iftype) {
1352         case NL80211_IFTYPE_ADHOC:
1353                 return cfg80211_ibss_wext_siwap(dev, info, ap_addr, extra);
1354         case NL80211_IFTYPE_STATION:
1355                 return cfg80211_mgd_wext_siwap(dev, info, ap_addr, extra);
1356         case NL80211_IFTYPE_WDS:
1357                 return cfg80211_wds_wext_siwap(dev, info, ap_addr, extra);
1358         default:
1359                 return -EOPNOTSUPP;
1360         }
1361 }
1362
1363 static int cfg80211_wext_giwap(struct net_device *dev,
1364                                struct iw_request_info *info,
1365                                struct sockaddr *ap_addr, char *extra)
1366 {
1367         struct wireless_dev *wdev = dev->ieee80211_ptr;
1368
1369         switch (wdev->iftype) {
1370         case NL80211_IFTYPE_ADHOC:
1371                 return cfg80211_ibss_wext_giwap(dev, info, ap_addr, extra);
1372         case NL80211_IFTYPE_STATION:
1373                 return cfg80211_mgd_wext_giwap(dev, info, ap_addr, extra);
1374         case NL80211_IFTYPE_WDS:
1375                 return cfg80211_wds_wext_giwap(dev, info, ap_addr, extra);
1376         default:
1377                 return -EOPNOTSUPP;
1378         }
1379 }
1380
1381 static int cfg80211_wext_siwessid(struct net_device *dev,
1382                                   struct iw_request_info *info,
1383                                   struct iw_point *data, char *ssid)
1384 {
1385         struct wireless_dev *wdev = dev->ieee80211_ptr;
1386
1387         switch (wdev->iftype) {
1388         case NL80211_IFTYPE_ADHOC:
1389                 return cfg80211_ibss_wext_siwessid(dev, info, data, ssid);
1390         case NL80211_IFTYPE_STATION:
1391                 return cfg80211_mgd_wext_siwessid(dev, info, data, ssid);
1392         default:
1393                 return -EOPNOTSUPP;
1394         }
1395 }
1396
1397 static int cfg80211_wext_giwessid(struct net_device *dev,
1398                                   struct iw_request_info *info,
1399                                   struct iw_point *data, char *ssid)
1400 {
1401         struct wireless_dev *wdev = dev->ieee80211_ptr;
1402
1403         data->flags = 0;
1404         data->length = 0;
1405
1406         switch (wdev->iftype) {
1407         case NL80211_IFTYPE_ADHOC:
1408                 return cfg80211_ibss_wext_giwessid(dev, info, data, ssid);
1409         case NL80211_IFTYPE_STATION:
1410                 return cfg80211_mgd_wext_giwessid(dev, info, data, ssid);
1411         default:
1412                 return -EOPNOTSUPP;
1413         }
1414 }
1415
1416 static int cfg80211_wext_siwpmksa(struct net_device *dev,
1417                                   struct iw_request_info *info,
1418                                   struct iw_point *data, char *extra)
1419 {
1420         struct wireless_dev *wdev = dev->ieee80211_ptr;
1421         struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
1422         struct cfg80211_pmksa cfg_pmksa;
1423         struct iw_pmksa *pmksa = (struct iw_pmksa *)extra;
1424
1425         memset(&cfg_pmksa, 0, sizeof(struct cfg80211_pmksa));
1426
1427         if (wdev->iftype != NL80211_IFTYPE_STATION)
1428                 return -EINVAL;
1429
1430         cfg_pmksa.bssid = pmksa->bssid.sa_data;
1431         cfg_pmksa.pmkid = pmksa->pmkid;
1432
1433         switch (pmksa->cmd) {
1434         case IW_PMKSA_ADD:
1435                 if (!rdev->ops->set_pmksa)
1436                         return -EOPNOTSUPP;
1437
1438                 return rdev_set_pmksa(rdev, dev, &cfg_pmksa);
1439
1440         case IW_PMKSA_REMOVE:
1441                 if (!rdev->ops->del_pmksa)
1442                         return -EOPNOTSUPP;
1443
1444                 return rdev_del_pmksa(rdev, dev, &cfg_pmksa);
1445
1446         case IW_PMKSA_FLUSH:
1447                 if (!rdev->ops->flush_pmksa)
1448                         return -EOPNOTSUPP;
1449
1450                 return rdev_flush_pmksa(rdev, dev);
1451
1452         default:
1453                 return -EOPNOTSUPP;
1454         }
1455 }
1456
1457 static const iw_handler cfg80211_handlers[] = {
1458         [IW_IOCTL_IDX(SIOCGIWNAME)]     = (iw_handler) cfg80211_wext_giwname,
1459         [IW_IOCTL_IDX(SIOCSIWFREQ)]     = (iw_handler) cfg80211_wext_siwfreq,
1460         [IW_IOCTL_IDX(SIOCGIWFREQ)]     = (iw_handler) cfg80211_wext_giwfreq,
1461         [IW_IOCTL_IDX(SIOCSIWMODE)]     = (iw_handler) cfg80211_wext_siwmode,
1462         [IW_IOCTL_IDX(SIOCGIWMODE)]     = (iw_handler) cfg80211_wext_giwmode,
1463         [IW_IOCTL_IDX(SIOCGIWRANGE)]    = (iw_handler) cfg80211_wext_giwrange,
1464         [IW_IOCTL_IDX(SIOCSIWAP)]       = (iw_handler) cfg80211_wext_siwap,
1465         [IW_IOCTL_IDX(SIOCGIWAP)]       = (iw_handler) cfg80211_wext_giwap,
1466         [IW_IOCTL_IDX(SIOCSIWMLME)]     = (iw_handler) cfg80211_wext_siwmlme,
1467         [IW_IOCTL_IDX(SIOCSIWSCAN)]     = (iw_handler) cfg80211_wext_siwscan,
1468         [IW_IOCTL_IDX(SIOCGIWSCAN)]     = (iw_handler) cfg80211_wext_giwscan,
1469         [IW_IOCTL_IDX(SIOCSIWESSID)]    = (iw_handler) cfg80211_wext_siwessid,
1470         [IW_IOCTL_IDX(SIOCGIWESSID)]    = (iw_handler) cfg80211_wext_giwessid,
1471         [IW_IOCTL_IDX(SIOCSIWRATE)]     = (iw_handler) cfg80211_wext_siwrate,
1472         [IW_IOCTL_IDX(SIOCGIWRATE)]     = (iw_handler) cfg80211_wext_giwrate,
1473         [IW_IOCTL_IDX(SIOCSIWRTS)]      = (iw_handler) cfg80211_wext_siwrts,
1474         [IW_IOCTL_IDX(SIOCGIWRTS)]      = (iw_handler) cfg80211_wext_giwrts,
1475         [IW_IOCTL_IDX(SIOCSIWFRAG)]     = (iw_handler) cfg80211_wext_siwfrag,
1476         [IW_IOCTL_IDX(SIOCGIWFRAG)]     = (iw_handler) cfg80211_wext_giwfrag,
1477         [IW_IOCTL_IDX(SIOCSIWTXPOW)]    = (iw_handler) cfg80211_wext_siwtxpower,
1478         [IW_IOCTL_IDX(SIOCGIWTXPOW)]    = (iw_handler) cfg80211_wext_giwtxpower,
1479         [IW_IOCTL_IDX(SIOCSIWRETRY)]    = (iw_handler) cfg80211_wext_siwretry,
1480         [IW_IOCTL_IDX(SIOCGIWRETRY)]    = (iw_handler) cfg80211_wext_giwretry,
1481         [IW_IOCTL_IDX(SIOCSIWENCODE)]   = (iw_handler) cfg80211_wext_siwencode,
1482         [IW_IOCTL_IDX(SIOCGIWENCODE)]   = (iw_handler) cfg80211_wext_giwencode,
1483         [IW_IOCTL_IDX(SIOCSIWPOWER)]    = (iw_handler) cfg80211_wext_siwpower,
1484         [IW_IOCTL_IDX(SIOCGIWPOWER)]    = (iw_handler) cfg80211_wext_giwpower,
1485         [IW_IOCTL_IDX(SIOCSIWGENIE)]    = (iw_handler) cfg80211_wext_siwgenie,
1486         [IW_IOCTL_IDX(SIOCSIWAUTH)]     = (iw_handler) cfg80211_wext_siwauth,
1487         [IW_IOCTL_IDX(SIOCGIWAUTH)]     = (iw_handler) cfg80211_wext_giwauth,
1488         [IW_IOCTL_IDX(SIOCSIWENCODEEXT)]= (iw_handler) cfg80211_wext_siwencodeext,
1489         [IW_IOCTL_IDX(SIOCSIWPMKSA)]    = (iw_handler) cfg80211_wext_siwpmksa,
1490 };
1491
1492 const struct iw_handler_def cfg80211_wext_handler = {
1493         .num_standard           = ARRAY_SIZE(cfg80211_handlers),
1494         .standard               = cfg80211_handlers,
1495         .get_wireless_stats = cfg80211_wireless_stats,
1496 };