linux/net/wireless/wext-compat.c
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   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
  23int cfg80211_wext_giwname(struct net_device *dev,
  24                          struct iw_request_info *info,
  25                          char *name, char *extra)
  26{
  27        struct wireless_dev *wdev = dev->ieee80211_ptr;
  28        struct ieee80211_supported_band *sband;
  29        bool is_ht = false, is_a = false, is_b = false, is_g = false;
  30
  31        if (!wdev)
  32                return -EOPNOTSUPP;
  33
  34        sband = wdev->wiphy->bands[IEEE80211_BAND_5GHZ];
  35        if (sband) {
  36                is_a = true;
  37                is_ht |= sband->ht_cap.ht_supported;
  38        }
  39
  40        sband = wdev->wiphy->bands[IEEE80211_BAND_2GHZ];
  41        if (sband) {
  42                int i;
  43                /* Check for mandatory rates */
  44                for (i = 0; i < sband->n_bitrates; i++) {
  45                        if (sband->bitrates[i].bitrate == 10)
  46                                is_b = true;
  47                        if (sband->bitrates[i].bitrate == 60)
  48                                is_g = true;
  49                }
  50                is_ht |= sband->ht_cap.ht_supported;
  51        }
  52
  53        strcpy(name, "IEEE 802.11");
  54        if (is_a)
  55                strcat(name, "a");
  56        if (is_b)
  57                strcat(name, "b");
  58        if (is_g)
  59                strcat(name, "g");
  60        if (is_ht)
  61                strcat(name, "n");
  62
  63        return 0;
  64}
  65EXPORT_SYMBOL_GPL(cfg80211_wext_giwname);
  66
  67int cfg80211_wext_siwmode(struct net_device *dev, struct iw_request_info *info,
  68                          u32 *mode, char *extra)
  69{
  70        struct wireless_dev *wdev = dev->ieee80211_ptr;
  71        struct cfg80211_registered_device *rdev;
  72        struct vif_params vifparams;
  73        enum nl80211_iftype type;
  74        int ret;
  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        cfg80211_lock_rdev(rdev);
 101        ret = cfg80211_change_iface(rdev, dev, type, NULL, &vifparams);
 102        cfg80211_unlock_rdev(rdev);
 103
 104        return ret;
 105}
 106EXPORT_SYMBOL_GPL(cfg80211_wext_siwmode);
 107
 108int cfg80211_wext_giwmode(struct net_device *dev, struct iw_request_info *info,
 109                          u32 *mode, char *extra)
 110{
 111        struct wireless_dev *wdev = dev->ieee80211_ptr;
 112
 113        if (!wdev)
 114                return -EOPNOTSUPP;
 115
 116        switch (wdev->iftype) {
 117        case NL80211_IFTYPE_AP:
 118                *mode = IW_MODE_MASTER;
 119                break;
 120        case NL80211_IFTYPE_STATION:
 121                *mode = IW_MODE_INFRA;
 122                break;
 123        case NL80211_IFTYPE_ADHOC:
 124                *mode = IW_MODE_ADHOC;
 125                break;
 126        case NL80211_IFTYPE_MONITOR:
 127                *mode = IW_MODE_MONITOR;
 128                break;
 129        case NL80211_IFTYPE_WDS:
 130                *mode = IW_MODE_REPEAT;
 131                break;
 132        case NL80211_IFTYPE_AP_VLAN:
 133                *mode = IW_MODE_SECOND;         /* FIXME */
 134                break;
 135        default:
 136                *mode = IW_MODE_AUTO;
 137                break;
 138        }
 139        return 0;
 140}
 141EXPORT_SYMBOL_GPL(cfg80211_wext_giwmode);
 142
 143
 144int cfg80211_wext_giwrange(struct net_device *dev,
 145                           struct iw_request_info *info,
 146                           struct iw_point *data, char *extra)
 147{
 148        struct wireless_dev *wdev = dev->ieee80211_ptr;
 149        struct iw_range *range = (struct iw_range *) extra;
 150        enum ieee80211_band band;
 151        int i, c = 0;
 152
 153        if (!wdev)
 154                return -EOPNOTSUPP;
 155
 156        data->length = sizeof(struct iw_range);
 157        memset(range, 0, sizeof(struct iw_range));
 158
 159        range->we_version_compiled = WIRELESS_EXT;
 160        range->we_version_source = 21;
 161        range->retry_capa = IW_RETRY_LIMIT;
 162        range->retry_flags = IW_RETRY_LIMIT;
 163        range->min_retry = 0;
 164        range->max_retry = 255;
 165        range->min_rts = 0;
 166        range->max_rts = 2347;
 167        range->min_frag = 256;
 168        range->max_frag = 2346;
 169
 170        range->max_encoding_tokens = 4;
 171
 172        range->max_qual.updated = IW_QUAL_NOISE_INVALID;
 173
 174        switch (wdev->wiphy->signal_type) {
 175        case CFG80211_SIGNAL_TYPE_NONE:
 176                break;
 177        case CFG80211_SIGNAL_TYPE_MBM:
 178                range->max_qual.level = -110;
 179                range->max_qual.qual = 70;
 180                range->avg_qual.qual = 35;
 181                range->max_qual.updated |= IW_QUAL_DBM;
 182                range->max_qual.updated |= IW_QUAL_QUAL_UPDATED;
 183                range->max_qual.updated |= IW_QUAL_LEVEL_UPDATED;
 184                break;
 185        case CFG80211_SIGNAL_TYPE_UNSPEC:
 186                range->max_qual.level = 100;
 187                range->max_qual.qual = 100;
 188                range->avg_qual.qual = 50;
 189                range->max_qual.updated |= IW_QUAL_QUAL_UPDATED;
 190                range->max_qual.updated |= IW_QUAL_LEVEL_UPDATED;
 191                break;
 192        }
 193
 194        range->avg_qual.level = range->max_qual.level / 2;
 195        range->avg_qual.noise = range->max_qual.noise / 2;
 196        range->avg_qual.updated = range->max_qual.updated;
 197
 198        for (i = 0; i < wdev->wiphy->n_cipher_suites; i++) {
 199                switch (wdev->wiphy->cipher_suites[i]) {
 200                case WLAN_CIPHER_SUITE_TKIP:
 201                        range->enc_capa |= (IW_ENC_CAPA_CIPHER_TKIP |
 202                                            IW_ENC_CAPA_WPA);
 203                        break;
 204
 205                case WLAN_CIPHER_SUITE_CCMP:
 206                        range->enc_capa |= (IW_ENC_CAPA_CIPHER_CCMP |
 207                                            IW_ENC_CAPA_WPA2);
 208                        break;
 209
 210                case WLAN_CIPHER_SUITE_WEP40:
 211                        range->encoding_size[range->num_encoding_sizes++] =
 212                                WLAN_KEY_LEN_WEP40;
 213                        break;
 214
 215                case WLAN_CIPHER_SUITE_WEP104:
 216                        range->encoding_size[range->num_encoding_sizes++] =
 217                                WLAN_KEY_LEN_WEP104;
 218                        break;
 219                }
 220        }
 221
 222        for (band = 0; band < IEEE80211_NUM_BANDS; band ++) {
 223                struct ieee80211_supported_band *sband;
 224
 225                sband = wdev->wiphy->bands[band];
 226
 227                if (!sband)
 228                        continue;
 229
 230                for (i = 0; i < sband->n_channels && c < IW_MAX_FREQUENCIES; i++) {
 231                        struct ieee80211_channel *chan = &sband->channels[i];
 232
 233                        if (!(chan->flags & IEEE80211_CHAN_DISABLED)) {
 234                                range->freq[c].i =
 235                                        ieee80211_frequency_to_channel(
 236                                                chan->center_freq);
 237                                range->freq[c].m = chan->center_freq;
 238                                range->freq[c].e = 6;
 239                                c++;
 240                        }
 241                }
 242        }
 243        range->num_channels = c;
 244        range->num_frequency = c;
 245
 246        IW_EVENT_CAPA_SET_KERNEL(range->event_capa);
 247        IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWAP);
 248        IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWSCAN);
 249
 250        if (wdev->wiphy->max_scan_ssids > 0)
 251                range->scan_capa |= IW_SCAN_CAPA_ESSID;
 252
 253        return 0;
 254}
 255EXPORT_SYMBOL_GPL(cfg80211_wext_giwrange);
 256
 257
 258/**
 259 * cfg80211_wext_freq - get wext frequency for non-"auto"
 260 * @wiphy: the wiphy
 261 * @freq: the wext freq encoding
 262 *
 263 * Returns a frequency, or a negative error code, or 0 for auto.
 264 */
 265int cfg80211_wext_freq(struct wiphy *wiphy, struct iw_freq *freq)
 266{
 267        /*
 268         * Parse frequency - return 0 for auto and
 269         * -EINVAL for impossible things.
 270         */
 271        if (freq->e == 0) {
 272                enum ieee80211_band band = IEEE80211_BAND_2GHZ;
 273                if (freq->m < 0)
 274                        return 0;
 275                if (freq->m > 14)
 276                        band = IEEE80211_BAND_5GHZ;
 277                return ieee80211_channel_to_frequency(freq->m, band);
 278        } else {
 279                int i, div = 1000000;
 280                for (i = 0; i < freq->e; i++)
 281                        div /= 10;
 282                if (div <= 0)
 283                        return -EINVAL;
 284                return freq->m / div;
 285        }
 286}
 287
 288int cfg80211_wext_siwrts(struct net_device *dev,
 289                         struct iw_request_info *info,
 290                         struct iw_param *rts, char *extra)
 291{
 292        struct wireless_dev *wdev = dev->ieee80211_ptr;
 293        struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
 294        u32 orts = wdev->wiphy->rts_threshold;
 295        int err;
 296
 297        if (rts->disabled || !rts->fixed)
 298                wdev->wiphy->rts_threshold = (u32) -1;
 299        else if (rts->value < 0)
 300                return -EINVAL;
 301        else
 302                wdev->wiphy->rts_threshold = rts->value;
 303
 304        err = rdev->ops->set_wiphy_params(wdev->wiphy,
 305                                          WIPHY_PARAM_RTS_THRESHOLD);
 306        if (err)
 307                wdev->wiphy->rts_threshold = orts;
 308
 309        return err;
 310}
 311EXPORT_SYMBOL_GPL(cfg80211_wext_siwrts);
 312
 313int cfg80211_wext_giwrts(struct net_device *dev,
 314                         struct iw_request_info *info,
 315                         struct iw_param *rts, char *extra)
 316{
 317        struct wireless_dev *wdev = dev->ieee80211_ptr;
 318
 319        rts->value = wdev->wiphy->rts_threshold;
 320        rts->disabled = rts->value == (u32) -1;
 321        rts->fixed = 1;
 322
 323        return 0;
 324}
 325EXPORT_SYMBOL_GPL(cfg80211_wext_giwrts);
 326
 327int cfg80211_wext_siwfrag(struct net_device *dev,
 328                          struct iw_request_info *info,
 329                          struct iw_param *frag, char *extra)
 330{
 331        struct wireless_dev *wdev = dev->ieee80211_ptr;
 332        struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
 333        u32 ofrag = wdev->wiphy->frag_threshold;
 334        int err;
 335
 336        if (frag->disabled || !frag->fixed)
 337                wdev->wiphy->frag_threshold = (u32) -1;
 338        else if (frag->value < 256)
 339                return -EINVAL;
 340        else {
 341                /* Fragment length must be even, so strip LSB. */
 342                wdev->wiphy->frag_threshold = frag->value & ~0x1;
 343        }
 344
 345        err = rdev->ops->set_wiphy_params(wdev->wiphy,
 346                                          WIPHY_PARAM_FRAG_THRESHOLD);
 347        if (err)
 348                wdev->wiphy->frag_threshold = ofrag;
 349
 350        return err;
 351}
 352EXPORT_SYMBOL_GPL(cfg80211_wext_siwfrag);
 353
 354int cfg80211_wext_giwfrag(struct net_device *dev,
 355                          struct iw_request_info *info,
 356                          struct iw_param *frag, char *extra)
 357{
 358        struct wireless_dev *wdev = dev->ieee80211_ptr;
 359
 360        frag->value = wdev->wiphy->frag_threshold;
 361        frag->disabled = frag->value == (u32) -1;
 362        frag->fixed = 1;
 363
 364        return 0;
 365}
 366EXPORT_SYMBOL_GPL(cfg80211_wext_giwfrag);
 367
 368static int cfg80211_wext_siwretry(struct net_device *dev,
 369                                  struct iw_request_info *info,
 370                                  struct iw_param *retry, char *extra)
 371{
 372        struct wireless_dev *wdev = dev->ieee80211_ptr;
 373        struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
 374        u32 changed = 0;
 375        u8 olong = wdev->wiphy->retry_long;
 376        u8 oshort = wdev->wiphy->retry_short;
 377        int err;
 378
 379        if (retry->disabled ||
 380            (retry->flags & IW_RETRY_TYPE) != IW_RETRY_LIMIT)
 381                return -EINVAL;
 382
 383        if (retry->flags & IW_RETRY_LONG) {
 384                wdev->wiphy->retry_long = retry->value;
 385                changed |= WIPHY_PARAM_RETRY_LONG;
 386        } else if (retry->flags & IW_RETRY_SHORT) {
 387                wdev->wiphy->retry_short = retry->value;
 388                changed |= WIPHY_PARAM_RETRY_SHORT;
 389        } else {
 390                wdev->wiphy->retry_short = retry->value;
 391                wdev->wiphy->retry_long = retry->value;
 392                changed |= WIPHY_PARAM_RETRY_LONG;
 393                changed |= WIPHY_PARAM_RETRY_SHORT;
 394        }
 395
 396        if (!changed)
 397                return 0;
 398
 399        err = rdev->ops->set_wiphy_params(wdev->wiphy, changed);
 400        if (err) {
 401                wdev->wiphy->retry_short = oshort;
 402                wdev->wiphy->retry_long = olong;
 403        }
 404
 405        return err;
 406}
 407
 408int cfg80211_wext_giwretry(struct net_device *dev,
 409                           struct iw_request_info *info,
 410                           struct iw_param *retry, char *extra)
 411{
 412        struct wireless_dev *wdev = dev->ieee80211_ptr;
 413
 414        retry->disabled = 0;
 415
 416        if (retry->flags == 0 || (retry->flags & IW_RETRY_SHORT)) {
 417                /*
 418                 * First return short value, iwconfig will ask long value
 419                 * later if needed
 420                 */
 421                retry->flags |= IW_RETRY_LIMIT;
 422                retry->value = wdev->wiphy->retry_short;
 423                if (wdev->wiphy->retry_long != wdev->wiphy->retry_short)
 424                        retry->flags |= IW_RETRY_LONG;
 425
 426                return 0;
 427        }
 428
 429        if (retry->flags & IW_RETRY_LONG) {
 430                retry->flags = IW_RETRY_LIMIT | IW_RETRY_LONG;
 431                retry->value = wdev->wiphy->retry_long;
 432        }
 433
 434        return 0;
 435}
 436EXPORT_SYMBOL_GPL(cfg80211_wext_giwretry);
 437
 438static int __cfg80211_set_encryption(struct cfg80211_registered_device *rdev,
 439                                     struct net_device *dev, bool pairwise,
 440                                     const u8 *addr, bool remove, bool tx_key,
 441                                     int idx, struct key_params *params)
 442{
 443        struct wireless_dev *wdev = dev->ieee80211_ptr;
 444        int err, i;
 445        bool rejoin = false;
 446
 447        if (pairwise && !addr)
 448                return -EINVAL;
 449
 450        if (!wdev->wext.keys) {
 451                wdev->wext.keys = kzalloc(sizeof(*wdev->wext.keys),
 452                                              GFP_KERNEL);
 453                if (!wdev->wext.keys)
 454                        return -ENOMEM;
 455                for (i = 0; i < 6; i++)
 456                        wdev->wext.keys->params[i].key =
 457                                wdev->wext.keys->data[i];
 458        }
 459
 460        if (wdev->iftype != NL80211_IFTYPE_ADHOC &&
 461            wdev->iftype != NL80211_IFTYPE_STATION)
 462                return -EOPNOTSUPP;
 463
 464        if (params->cipher == WLAN_CIPHER_SUITE_AES_CMAC) {
 465                if (!wdev->current_bss)
 466                        return -ENOLINK;
 467
 468                if (!rdev->ops->set_default_mgmt_key)
 469                        return -EOPNOTSUPP;
 470
 471                if (idx < 4 || idx > 5)
 472                        return -EINVAL;
 473        } else if (idx < 0 || idx > 3)
 474                return -EINVAL;
 475
 476        if (remove) {
 477                err = 0;
 478                if (wdev->current_bss) {
 479                        /*
 480                         * If removing the current TX key, we will need to
 481                         * join a new IBSS without the privacy bit clear.
 482                         */
 483                        if (idx == wdev->wext.default_key &&
 484                            wdev->iftype == NL80211_IFTYPE_ADHOC) {
 485                                __cfg80211_leave_ibss(rdev, wdev->netdev, true);
 486                                rejoin = true;
 487                        }
 488
 489                        if (!pairwise && addr &&
 490                            !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
 491                                err = -ENOENT;
 492                        else
 493                                err = rdev->ops->del_key(&rdev->wiphy, dev, idx,
 494                                                         pairwise, addr);
 495                }
 496                wdev->wext.connect.privacy = false;
 497                /*
 498                 * Applications using wireless extensions expect to be
 499                 * able to delete keys that don't exist, so allow that.
 500                 */
 501                if (err == -ENOENT)
 502                        err = 0;
 503                if (!err) {
 504                        if (!addr) {
 505                                wdev->wext.keys->params[idx].key_len = 0;
 506                                wdev->wext.keys->params[idx].cipher = 0;
 507                        }
 508                        if (idx == wdev->wext.default_key)
 509                                wdev->wext.default_key = -1;
 510                        else if (idx == wdev->wext.default_mgmt_key)
 511                                wdev->wext.default_mgmt_key = -1;
 512                }
 513
 514                if (!err && rejoin)
 515                        err = cfg80211_ibss_wext_join(rdev, wdev);
 516
 517                return err;
 518        }
 519
 520        if (addr)
 521                tx_key = false;
 522
 523        if (cfg80211_validate_key_settings(rdev, params, idx, pairwise, addr))
 524                return -EINVAL;
 525
 526        err = 0;
 527        if (wdev->current_bss)
 528                err = rdev->ops->add_key(&rdev->wiphy, dev, idx,
 529                                         pairwise, addr, params);
 530        if (err)
 531                return err;
 532
 533        if (!addr) {
 534                wdev->wext.keys->params[idx] = *params;
 535                memcpy(wdev->wext.keys->data[idx],
 536                        params->key, params->key_len);
 537                wdev->wext.keys->params[idx].key =
 538                        wdev->wext.keys->data[idx];
 539        }
 540
 541        if ((params->cipher == WLAN_CIPHER_SUITE_WEP40 ||
 542             params->cipher == WLAN_CIPHER_SUITE_WEP104) &&
 543            (tx_key || (!addr && wdev->wext.default_key == -1))) {
 544                if (wdev->current_bss) {
 545                        /*
 546                         * If we are getting a new TX key from not having
 547                         * had one before we need to join a new IBSS with
 548                         * the privacy bit set.
 549                         */
 550                        if (wdev->iftype == NL80211_IFTYPE_ADHOC &&
 551                            wdev->wext.default_key == -1) {
 552                                __cfg80211_leave_ibss(rdev, wdev->netdev, true);
 553                                rejoin = true;
 554                        }
 555                        err = rdev->ops->set_default_key(&rdev->wiphy, dev,
 556                                                         idx, true, true);
 557                }
 558                if (!err) {
 559                        wdev->wext.default_key = idx;
 560                        if (rejoin)
 561                                err = cfg80211_ibss_wext_join(rdev, wdev);
 562                }
 563                return err;
 564        }
 565
 566        if (params->cipher == WLAN_CIPHER_SUITE_AES_CMAC &&
 567            (tx_key || (!addr && wdev->wext.default_mgmt_key == -1))) {
 568                if (wdev->current_bss)
 569                        err = rdev->ops->set_default_mgmt_key(&rdev->wiphy,
 570                                                              dev, idx);
 571                if (!err)
 572                        wdev->wext.default_mgmt_key = idx;
 573                return err;
 574        }
 575
 576        return 0;
 577}
 578
 579static int cfg80211_set_encryption(struct cfg80211_registered_device *rdev,
 580                                   struct net_device *dev, bool pairwise,
 581                                   const u8 *addr, bool remove, bool tx_key,
 582                                   int idx, struct key_params *params)
 583{
 584        int err;
 585
 586        /* devlist mutex needed for possible IBSS re-join */
 587        mutex_lock(&rdev->devlist_mtx);
 588        wdev_lock(dev->ieee80211_ptr);
 589        err = __cfg80211_set_encryption(rdev, dev, pairwise, addr,
 590                                        remove, tx_key, idx, params);
 591        wdev_unlock(dev->ieee80211_ptr);
 592        mutex_unlock(&rdev->devlist_mtx);
 593
 594        return err;
 595}
 596
 597static int cfg80211_wext_siwencode(struct net_device *dev,
 598                                   struct iw_request_info *info,
 599                                   struct iw_point *erq, char *keybuf)
 600{
 601        struct wireless_dev *wdev = dev->ieee80211_ptr;
 602        struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
 603        int idx, err;
 604        bool remove = false;
 605        struct key_params params;
 606
 607        if (wdev->iftype != NL80211_IFTYPE_STATION &&
 608            wdev->iftype != NL80211_IFTYPE_ADHOC)
 609                return -EOPNOTSUPP;
 610
 611        /* no use -- only MFP (set_default_mgmt_key) is optional */
 612        if (!rdev->ops->del_key ||
 613            !rdev->ops->add_key ||
 614            !rdev->ops->set_default_key)
 615                return -EOPNOTSUPP;
 616
 617        idx = erq->flags & IW_ENCODE_INDEX;
 618        if (idx == 0) {
 619                idx = wdev->wext.default_key;
 620                if (idx < 0)
 621                        idx = 0;
 622        } else if (idx < 1 || idx > 4)
 623                return -EINVAL;
 624        else
 625                idx--;
 626
 627        if (erq->flags & IW_ENCODE_DISABLED)
 628                remove = true;
 629        else if (erq->length == 0) {
 630                /* No key data - just set the default TX key index */
 631                err = 0;
 632                wdev_lock(wdev);
 633                if (wdev->current_bss)
 634                        err = rdev->ops->set_default_key(&rdev->wiphy, dev,
 635                                                         idx, true, true);
 636                if (!err)
 637                        wdev->wext.default_key = idx;
 638                wdev_unlock(wdev);
 639                return err;
 640        }
 641
 642        memset(&params, 0, sizeof(params));
 643        params.key = keybuf;
 644        params.key_len = erq->length;
 645        if (erq->length == 5)
 646                params.cipher = WLAN_CIPHER_SUITE_WEP40;
 647        else if (erq->length == 13)
 648                params.cipher = WLAN_CIPHER_SUITE_WEP104;
 649        else if (!remove)
 650                return -EINVAL;
 651
 652        return cfg80211_set_encryption(rdev, dev, false, NULL, remove,
 653                                       wdev->wext.default_key == -1,
 654                                       idx, &params);
 655}
 656
 657static int cfg80211_wext_siwencodeext(struct net_device *dev,
 658                                      struct iw_request_info *info,
 659                                      struct iw_point *erq, char *extra)
 660{
 661        struct wireless_dev *wdev = dev->ieee80211_ptr;
 662        struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
 663        struct iw_encode_ext *ext = (struct iw_encode_ext *) extra;
 664        const u8 *addr;
 665        int idx;
 666        bool remove = false;
 667        struct key_params params;
 668        u32 cipher;
 669
 670        if (wdev->iftype != NL80211_IFTYPE_STATION &&
 671            wdev->iftype != NL80211_IFTYPE_ADHOC)
 672                return -EOPNOTSUPP;
 673
 674        /* no use -- only MFP (set_default_mgmt_key) is optional */
 675        if (!rdev->ops->del_key ||
 676            !rdev->ops->add_key ||
 677            !rdev->ops->set_default_key)
 678                return -EOPNOTSUPP;
 679
 680        switch (ext->alg) {
 681        case IW_ENCODE_ALG_NONE:
 682                remove = true;
 683                cipher = 0;
 684                break;
 685        case IW_ENCODE_ALG_WEP:
 686                if (ext->key_len == 5)
 687                        cipher = WLAN_CIPHER_SUITE_WEP40;
 688                else if (ext->key_len == 13)
 689                        cipher = WLAN_CIPHER_SUITE_WEP104;
 690                else
 691                        return -EINVAL;
 692                break;
 693        case IW_ENCODE_ALG_TKIP:
 694                cipher = WLAN_CIPHER_SUITE_TKIP;
 695                break;
 696        case IW_ENCODE_ALG_CCMP:
 697                cipher = WLAN_CIPHER_SUITE_CCMP;
 698                break;
 699        case IW_ENCODE_ALG_AES_CMAC:
 700                cipher = WLAN_CIPHER_SUITE_AES_CMAC;
 701                break;
 702        default:
 703                return -EOPNOTSUPP;
 704        }
 705
 706        if (erq->flags & IW_ENCODE_DISABLED)
 707                remove = true;
 708
 709        idx = erq->flags & IW_ENCODE_INDEX;
 710        if (cipher == WLAN_CIPHER_SUITE_AES_CMAC) {
 711                if (idx < 4 || idx > 5) {
 712                        idx = wdev->wext.default_mgmt_key;
 713                        if (idx < 0)
 714                                return -EINVAL;
 715                } else
 716                        idx--;
 717        } else {
 718                if (idx < 1 || idx > 4) {
 719                        idx = wdev->wext.default_key;
 720                        if (idx < 0)
 721                                return -EINVAL;
 722                } else
 723                        idx--;
 724        }
 725
 726        addr = ext->addr.sa_data;
 727        if (is_broadcast_ether_addr(addr))
 728                addr = NULL;
 729
 730        memset(&params, 0, sizeof(params));
 731        params.key = ext->key;
 732        params.key_len = ext->key_len;
 733        params.cipher = cipher;
 734
 735        if (ext->ext_flags & IW_ENCODE_EXT_RX_SEQ_VALID) {
 736                params.seq = ext->rx_seq;
 737                params.seq_len = 6;
 738        }
 739
 740        return cfg80211_set_encryption(
 741                        rdev, dev,
 742                        !(ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY),
 743                        addr, remove,
 744                        ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY,
 745                        idx, &params);
 746}
 747
 748static int cfg80211_wext_giwencode(struct net_device *dev,
 749                                   struct iw_request_info *info,
 750                                   struct iw_point *erq, char *keybuf)
 751{
 752        struct wireless_dev *wdev = dev->ieee80211_ptr;
 753        int idx;
 754
 755        if (wdev->iftype != NL80211_IFTYPE_STATION &&
 756            wdev->iftype != NL80211_IFTYPE_ADHOC)
 757                return -EOPNOTSUPP;
 758
 759        idx = erq->flags & IW_ENCODE_INDEX;
 760        if (idx == 0) {
 761                idx = wdev->wext.default_key;
 762                if (idx < 0)
 763                        idx = 0;
 764        } else if (idx < 1 || idx > 4)
 765                return -EINVAL;
 766        else
 767                idx--;
 768
 769        erq->flags = idx + 1;
 770
 771        if (!wdev->wext.keys || !wdev->wext.keys->params[idx].cipher) {
 772                erq->flags |= IW_ENCODE_DISABLED;
 773                erq->length = 0;
 774                return 0;
 775        }
 776
 777        erq->length = min_t(size_t, erq->length,
 778                            wdev->wext.keys->params[idx].key_len);
 779        memcpy(keybuf, wdev->wext.keys->params[idx].key, erq->length);
 780        erq->flags |= IW_ENCODE_ENABLED;
 781
 782        return 0;
 783}
 784
 785static int cfg80211_wext_siwfreq(struct net_device *dev,
 786                                 struct iw_request_info *info,
 787                                 struct iw_freq *wextfreq, char *extra)
 788{
 789        struct wireless_dev *wdev = dev->ieee80211_ptr;
 790        struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
 791        int freq, err;
 792
 793        switch (wdev->iftype) {
 794        case NL80211_IFTYPE_STATION:
 795                return cfg80211_mgd_wext_siwfreq(dev, info, wextfreq, extra);
 796        case NL80211_IFTYPE_ADHOC:
 797                return cfg80211_ibss_wext_siwfreq(dev, info, wextfreq, extra);
 798        case NL80211_IFTYPE_MONITOR:
 799                freq = cfg80211_wext_freq(wdev->wiphy, wextfreq);
 800                if (freq < 0)
 801                        return freq;
 802                if (freq == 0)
 803                        return -EINVAL;
 804                mutex_lock(&rdev->devlist_mtx);
 805                err = cfg80211_set_monitor_channel(rdev, freq, NL80211_CHAN_NO_HT);
 806                mutex_unlock(&rdev->devlist_mtx);
 807                return err;
 808        case NL80211_IFTYPE_MESH_POINT:
 809                freq = cfg80211_wext_freq(wdev->wiphy, wextfreq);
 810                if (freq < 0)
 811                        return freq;
 812                if (freq == 0)
 813                        return -EINVAL;
 814                mutex_lock(&rdev->devlist_mtx);
 815                err = cfg80211_set_mesh_freq(rdev, wdev, freq,
 816                                             NL80211_CHAN_NO_HT);
 817                mutex_unlock(&rdev->devlist_mtx);
 818                return err;
 819        default:
 820                return -EOPNOTSUPP;
 821        }
 822}
 823
 824static int cfg80211_wext_giwfreq(struct net_device *dev,
 825                                 struct iw_request_info *info,
 826                                 struct iw_freq *freq, char *extra)
 827{
 828        struct wireless_dev *wdev = dev->ieee80211_ptr;
 829        struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
 830        struct ieee80211_channel *chan;
 831        enum nl80211_channel_type channel_type;
 832
 833        switch (wdev->iftype) {
 834        case NL80211_IFTYPE_STATION:
 835                return cfg80211_mgd_wext_giwfreq(dev, info, freq, extra);
 836        case NL80211_IFTYPE_ADHOC:
 837                return cfg80211_ibss_wext_giwfreq(dev, info, freq, extra);
 838        case NL80211_IFTYPE_MONITOR:
 839                if (!rdev->ops->get_channel)
 840                        return -EINVAL;
 841
 842                chan = rdev->ops->get_channel(wdev->wiphy, wdev, &channel_type);
 843                if (!chan)
 844                        return -EINVAL;
 845                freq->m = chan->center_freq;
 846                freq->e = 6;
 847                return 0;
 848        default:
 849                return -EINVAL;
 850        }
 851}
 852
 853static int cfg80211_wext_siwtxpower(struct net_device *dev,
 854                                    struct iw_request_info *info,
 855                                    union iwreq_data *data, char *extra)
 856{
 857        struct wireless_dev *wdev = dev->ieee80211_ptr;
 858        struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
 859        enum nl80211_tx_power_setting type;
 860        int dbm = 0;
 861
 862        if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM)
 863                return -EINVAL;
 864        if (data->txpower.flags & IW_TXPOW_RANGE)
 865                return -EINVAL;
 866
 867        if (!rdev->ops->set_tx_power)
 868                return -EOPNOTSUPP;
 869
 870        /* only change when not disabling */
 871        if (!data->txpower.disabled) {
 872                rfkill_set_sw_state(rdev->rfkill, false);
 873
 874                if (data->txpower.fixed) {
 875                        /*
 876                         * wext doesn't support negative values, see
 877                         * below where it's for automatic
 878                         */
 879                        if (data->txpower.value < 0)
 880                                return -EINVAL;
 881                        dbm = data->txpower.value;
 882                        type = NL80211_TX_POWER_FIXED;
 883                        /* TODO: do regulatory check! */
 884                } else {
 885                        /*
 886                         * Automatic power level setting, max being the value
 887                         * passed in from userland.
 888                         */
 889                        if (data->txpower.value < 0) {
 890                                type = NL80211_TX_POWER_AUTOMATIC;
 891                        } else {
 892                                dbm = data->txpower.value;
 893                                type = NL80211_TX_POWER_LIMITED;
 894                        }
 895                }
 896        } else {
 897                rfkill_set_sw_state(rdev->rfkill, true);
 898                schedule_work(&rdev->rfkill_sync);
 899                return 0;
 900        }
 901
 902        return rdev->ops->set_tx_power(wdev->wiphy, type, DBM_TO_MBM(dbm));
 903}
 904
 905static int cfg80211_wext_giwtxpower(struct net_device *dev,
 906                                    struct iw_request_info *info,
 907                                    union iwreq_data *data, char *extra)
 908{
 909        struct wireless_dev *wdev = dev->ieee80211_ptr;
 910        struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
 911        int err, val;
 912
 913        if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM)
 914                return -EINVAL;
 915        if (data->txpower.flags & IW_TXPOW_RANGE)
 916                return -EINVAL;
 917
 918        if (!rdev->ops->get_tx_power)
 919                return -EOPNOTSUPP;
 920
 921        err = rdev->ops->get_tx_power(wdev->wiphy, &val);
 922        if (err)
 923                return err;
 924
 925        /* well... oh well */
 926        data->txpower.fixed = 1;
 927        data->txpower.disabled = rfkill_blocked(rdev->rfkill);
 928        data->txpower.value = val;
 929        data->txpower.flags = IW_TXPOW_DBM;
 930
 931        return 0;
 932}
 933
 934static int cfg80211_set_auth_alg(struct wireless_dev *wdev,
 935                                 s32 auth_alg)
 936{
 937        int nr_alg = 0;
 938
 939        if (!auth_alg)
 940                return -EINVAL;
 941
 942        if (auth_alg & ~(IW_AUTH_ALG_OPEN_SYSTEM |
 943                         IW_AUTH_ALG_SHARED_KEY |
 944                         IW_AUTH_ALG_LEAP))
 945                return -EINVAL;
 946
 947        if (auth_alg & IW_AUTH_ALG_OPEN_SYSTEM) {
 948                nr_alg++;
 949                wdev->wext.connect.auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
 950        }
 951
 952        if (auth_alg & IW_AUTH_ALG_SHARED_KEY) {
 953                nr_alg++;
 954                wdev->wext.connect.auth_type = NL80211_AUTHTYPE_SHARED_KEY;
 955        }
 956
 957        if (auth_alg & IW_AUTH_ALG_LEAP) {
 958                nr_alg++;
 959                wdev->wext.connect.auth_type = NL80211_AUTHTYPE_NETWORK_EAP;
 960        }
 961
 962        if (nr_alg > 1)
 963                wdev->wext.connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
 964
 965        return 0;
 966}
 967
 968static int cfg80211_set_wpa_version(struct wireless_dev *wdev, u32 wpa_versions)
 969{
 970        if (wpa_versions & ~(IW_AUTH_WPA_VERSION_WPA |
 971                             IW_AUTH_WPA_VERSION_WPA2|
 972                             IW_AUTH_WPA_VERSION_DISABLED))
 973                return -EINVAL;
 974
 975        if ((wpa_versions & IW_AUTH_WPA_VERSION_DISABLED) &&
 976            (wpa_versions & (IW_AUTH_WPA_VERSION_WPA|
 977                             IW_AUTH_WPA_VERSION_WPA2)))
 978                return -EINVAL;
 979
 980        if (wpa_versions & IW_AUTH_WPA_VERSION_DISABLED)
 981                wdev->wext.connect.crypto.wpa_versions &=
 982                        ~(NL80211_WPA_VERSION_1|NL80211_WPA_VERSION_2);
 983
 984        if (wpa_versions & IW_AUTH_WPA_VERSION_WPA)
 985                wdev->wext.connect.crypto.wpa_versions |=
 986                        NL80211_WPA_VERSION_1;
 987
 988        if (wpa_versions & IW_AUTH_WPA_VERSION_WPA2)
 989                wdev->wext.connect.crypto.wpa_versions |=
 990                        NL80211_WPA_VERSION_2;
 991
 992        return 0;
 993}
 994
 995static int cfg80211_set_cipher_group(struct wireless_dev *wdev, u32 cipher)
 996{
 997        if (cipher & IW_AUTH_CIPHER_WEP40)
 998                wdev->wext.connect.crypto.cipher_group =
 999                        WLAN_CIPHER_SUITE_WEP40;
1000        else if (cipher & IW_AUTH_CIPHER_WEP104)
1001                wdev->wext.connect.crypto.cipher_group =
1002                        WLAN_CIPHER_SUITE_WEP104;
1003        else if (cipher & IW_AUTH_CIPHER_TKIP)
1004                wdev->wext.connect.crypto.cipher_group =
1005                        WLAN_CIPHER_SUITE_TKIP;
1006        else if (cipher & IW_AUTH_CIPHER_CCMP)
1007                wdev->wext.connect.crypto.cipher_group =
1008                        WLAN_CIPHER_SUITE_CCMP;
1009        else if (cipher & IW_AUTH_CIPHER_AES_CMAC)
1010                wdev->wext.connect.crypto.cipher_group =
1011                        WLAN_CIPHER_SUITE_AES_CMAC;
1012        else if (cipher & IW_AUTH_CIPHER_NONE)
1013                wdev->wext.connect.crypto.cipher_group = 0;
1014        else
1015                return -EINVAL;
1016
1017        return 0;
1018}
1019
1020static int cfg80211_set_cipher_pairwise(struct wireless_dev *wdev, u32 cipher)
1021{
1022        int nr_ciphers = 0;
1023        u32 *ciphers_pairwise = wdev->wext.connect.crypto.ciphers_pairwise;
1024
1025        if (cipher & IW_AUTH_CIPHER_WEP40) {
1026                ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_WEP40;
1027                nr_ciphers++;
1028        }
1029
1030        if (cipher & IW_AUTH_CIPHER_WEP104) {
1031                ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_WEP104;
1032                nr_ciphers++;
1033        }
1034
1035        if (cipher & IW_AUTH_CIPHER_TKIP) {
1036                ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_TKIP;
1037                nr_ciphers++;
1038        }
1039
1040        if (cipher & IW_AUTH_CIPHER_CCMP) {
1041                ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_CCMP;
1042                nr_ciphers++;
1043        }
1044
1045        if (cipher & IW_AUTH_CIPHER_AES_CMAC) {
1046                ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_AES_CMAC;
1047                nr_ciphers++;
1048        }
1049
1050        BUILD_BUG_ON(NL80211_MAX_NR_CIPHER_SUITES < 5);
1051
1052        wdev->wext.connect.crypto.n_ciphers_pairwise = nr_ciphers;
1053
1054        return 0;
1055}
1056
1057
1058static int cfg80211_set_key_mgt(struct wireless_dev *wdev, u32 key_mgt)
1059{
1060        int nr_akm_suites = 0;
1061
1062        if (key_mgt & ~(IW_AUTH_KEY_MGMT_802_1X |
1063                        IW_AUTH_KEY_MGMT_PSK))
1064                return -EINVAL;
1065
1066        if (key_mgt & IW_AUTH_KEY_MGMT_802_1X) {
1067                wdev->wext.connect.crypto.akm_suites[nr_akm_suites] =
1068                        WLAN_AKM_SUITE_8021X;
1069                nr_akm_suites++;
1070        }
1071
1072        if (key_mgt & IW_AUTH_KEY_MGMT_PSK) {
1073                wdev->wext.connect.crypto.akm_suites[nr_akm_suites] =
1074                        WLAN_AKM_SUITE_PSK;
1075                nr_akm_suites++;
1076        }
1077
1078        wdev->wext.connect.crypto.n_akm_suites = nr_akm_suites;
1079
1080        return 0;
1081}
1082
1083static int cfg80211_wext_siwauth(struct net_device *dev,
1084                                 struct iw_request_info *info,
1085                                 struct iw_param *data, char *extra)
1086{
1087        struct wireless_dev *wdev = dev->ieee80211_ptr;
1088
1089        if (wdev->iftype != NL80211_IFTYPE_STATION)
1090                return -EOPNOTSUPP;
1091
1092        switch (data->flags & IW_AUTH_INDEX) {
1093        case IW_AUTH_PRIVACY_INVOKED:
1094                wdev->wext.connect.privacy = data->value;
1095                return 0;
1096        case IW_AUTH_WPA_VERSION:
1097                return cfg80211_set_wpa_version(wdev, data->value);
1098        case IW_AUTH_CIPHER_GROUP:
1099                return cfg80211_set_cipher_group(wdev, data->value);
1100        case IW_AUTH_KEY_MGMT:
1101                return cfg80211_set_key_mgt(wdev, data->value);
1102        case IW_AUTH_CIPHER_PAIRWISE:
1103                return cfg80211_set_cipher_pairwise(wdev, data->value);
1104        case IW_AUTH_80211_AUTH_ALG:
1105                return cfg80211_set_auth_alg(wdev, data->value);
1106        case IW_AUTH_WPA_ENABLED:
1107        case IW_AUTH_RX_UNENCRYPTED_EAPOL:
1108        case IW_AUTH_DROP_UNENCRYPTED:
1109        case IW_AUTH_MFP:
1110                return 0;
1111        default:
1112                return -EOPNOTSUPP;
1113        }
1114}
1115
1116static int cfg80211_wext_giwauth(struct net_device *dev,
1117                                 struct iw_request_info *info,
1118                                 struct iw_param *data, char *extra)
1119{
1120        /* XXX: what do we need? */
1121
1122        return -EOPNOTSUPP;
1123}
1124
1125static int cfg80211_wext_siwpower(struct net_device *dev,
1126                                  struct iw_request_info *info,
1127                                  struct iw_param *wrq, char *extra)
1128{
1129        struct wireless_dev *wdev = dev->ieee80211_ptr;
1130        struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1131        bool ps = wdev->ps;
1132        int timeout = wdev->ps_timeout;
1133        int err;
1134
1135        if (wdev->iftype != NL80211_IFTYPE_STATION)
1136                return -EINVAL;
1137
1138        if (!rdev->ops->set_power_mgmt)
1139                return -EOPNOTSUPP;
1140
1141        if (wrq->disabled) {
1142                ps = false;
1143        } else {
1144                switch (wrq->flags & IW_POWER_MODE) {
1145                case IW_POWER_ON:       /* If not specified */
1146                case IW_POWER_MODE:     /* If set all mask */
1147                case IW_POWER_ALL_R:    /* If explicitely state all */
1148                        ps = true;
1149                        break;
1150                default:                /* Otherwise we ignore */
1151                        return -EINVAL;
1152                }
1153
1154                if (wrq->flags & ~(IW_POWER_MODE | IW_POWER_TIMEOUT))
1155                        return -EINVAL;
1156
1157                if (wrq->flags & IW_POWER_TIMEOUT)
1158                        timeout = wrq->value / 1000;
1159        }
1160
1161        err = rdev->ops->set_power_mgmt(wdev->wiphy, dev, ps, timeout);
1162        if (err)
1163                return err;
1164
1165        wdev->ps = ps;
1166        wdev->ps_timeout = timeout;
1167
1168        return 0;
1169
1170}
1171
1172static int cfg80211_wext_giwpower(struct net_device *dev,
1173                                  struct iw_request_info *info,
1174                                  struct iw_param *wrq, char *extra)
1175{
1176        struct wireless_dev *wdev = dev->ieee80211_ptr;
1177
1178        wrq->disabled = !wdev->ps;
1179
1180        return 0;
1181}
1182
1183static int cfg80211_wds_wext_siwap(struct net_device *dev,
1184                                   struct iw_request_info *info,
1185                                   struct sockaddr *addr, char *extra)
1186{
1187        struct wireless_dev *wdev = dev->ieee80211_ptr;
1188        struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1189        int err;
1190
1191        if (WARN_ON(wdev->iftype != NL80211_IFTYPE_WDS))
1192                return -EINVAL;
1193
1194        if (addr->sa_family != ARPHRD_ETHER)
1195                return -EINVAL;
1196
1197        if (netif_running(dev))
1198                return -EBUSY;
1199
1200        if (!rdev->ops->set_wds_peer)
1201                return -EOPNOTSUPP;
1202
1203        err = rdev->ops->set_wds_peer(wdev->wiphy, dev, (u8 *) &addr->sa_data);
1204        if (err)
1205                return err;
1206
1207        memcpy(&wdev->wext.bssid, (u8 *) &addr->sa_data, ETH_ALEN);
1208
1209        return 0;
1210}
1211
1212static int cfg80211_wds_wext_giwap(struct net_device *dev,
1213                                   struct iw_request_info *info,
1214                                   struct sockaddr *addr, char *extra)
1215{
1216        struct wireless_dev *wdev = dev->ieee80211_ptr;
1217
1218        if (WARN_ON(wdev->iftype != NL80211_IFTYPE_WDS))
1219                return -EINVAL;
1220
1221        addr->sa_family = ARPHRD_ETHER;
1222        memcpy(&addr->sa_data, wdev->wext.bssid, ETH_ALEN);
1223
1224        return 0;
1225}
1226
1227static int cfg80211_wext_siwrate(struct net_device *dev,
1228                                 struct iw_request_info *info,
1229                                 struct iw_param *rate, char *extra)
1230{
1231        struct wireless_dev *wdev = dev->ieee80211_ptr;
1232        struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1233        struct cfg80211_bitrate_mask mask;
1234        u32 fixed, maxrate;
1235        struct ieee80211_supported_band *sband;
1236        int band, ridx;
1237        bool match = false;
1238
1239        if (!rdev->ops->set_bitrate_mask)
1240                return -EOPNOTSUPP;
1241
1242        memset(&mask, 0, sizeof(mask));
1243        fixed = 0;
1244        maxrate = (u32)-1;
1245
1246        if (rate->value < 0) {
1247                /* nothing */
1248        } else if (rate->fixed) {
1249                fixed = rate->value / 100000;
1250        } else {
1251                maxrate = rate->value / 100000;
1252        }
1253
1254        for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
1255                sband = wdev->wiphy->bands[band];
1256                if (sband == NULL)
1257                        continue;
1258                for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
1259                        struct ieee80211_rate *srate = &sband->bitrates[ridx];
1260                        if (fixed == srate->bitrate) {
1261                                mask.control[band].legacy = 1 << ridx;
1262                                match = true;
1263                                break;
1264                        }
1265                        if (srate->bitrate <= maxrate) {
1266                                mask.control[band].legacy |= 1 << ridx;
1267                                match = true;
1268                        }
1269                }
1270        }
1271
1272        if (!match)
1273                return -EINVAL;
1274
1275        return rdev->ops->set_bitrate_mask(wdev->wiphy, dev, NULL, &mask);
1276}
1277
1278static int cfg80211_wext_giwrate(struct net_device *dev,
1279                                 struct iw_request_info *info,
1280                                 struct iw_param *rate, char *extra)
1281{
1282        struct wireless_dev *wdev = dev->ieee80211_ptr;
1283        struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1284        /* we are under RTNL - globally locked - so can use a static struct */
1285        static struct station_info sinfo;
1286        u8 addr[ETH_ALEN];
1287        int err;
1288
1289        if (wdev->iftype != NL80211_IFTYPE_STATION)
1290                return -EOPNOTSUPP;
1291
1292        if (!rdev->ops->get_station)
1293                return -EOPNOTSUPP;
1294
1295        err = 0;
1296        wdev_lock(wdev);
1297        if (wdev->current_bss)
1298                memcpy(addr, wdev->current_bss->pub.bssid, ETH_ALEN);
1299        else
1300                err = -EOPNOTSUPP;
1301        wdev_unlock(wdev);
1302        if (err)
1303                return err;
1304
1305        err = rdev->ops->get_station(&rdev->wiphy, dev, addr, &sinfo);
1306        if (err)
1307                return err;
1308
1309        if (!(sinfo.filled & STATION_INFO_TX_BITRATE))
1310                return -EOPNOTSUPP;
1311
1312        rate->value = 100000 * cfg80211_calculate_bitrate(&sinfo.txrate);
1313
1314        return 0;
1315}
1316
1317/* Get wireless statistics.  Called by /proc/net/wireless and by SIOCGIWSTATS */
1318static struct iw_statistics *cfg80211_wireless_stats(struct net_device *dev)
1319{
1320        struct wireless_dev *wdev = dev->ieee80211_ptr;
1321        struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1322        /* we are under RTNL - globally locked - so can use static structs */
1323        static struct iw_statistics wstats;
1324        static struct station_info sinfo;
1325        u8 bssid[ETH_ALEN];
1326
1327        if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION)
1328                return NULL;
1329
1330        if (!rdev->ops->get_station)
1331                return NULL;
1332
1333        /* Grab BSSID of current BSS, if any */
1334        wdev_lock(wdev);
1335        if (!wdev->current_bss) {
1336                wdev_unlock(wdev);
1337                return NULL;
1338        }
1339        memcpy(bssid, wdev->current_bss->pub.bssid, ETH_ALEN);
1340        wdev_unlock(wdev);
1341
1342        if (rdev->ops->get_station(&rdev->wiphy, dev, bssid, &sinfo))
1343                return NULL;
1344
1345        memset(&wstats, 0, sizeof(wstats));
1346
1347        switch (rdev->wiphy.signal_type) {
1348        case CFG80211_SIGNAL_TYPE_MBM:
1349                if (sinfo.filled & STATION_INFO_SIGNAL) {
1350                        int sig = sinfo.signal;
1351                        wstats.qual.updated |= IW_QUAL_LEVEL_UPDATED;
1352                        wstats.qual.updated |= IW_QUAL_QUAL_UPDATED;
1353                        wstats.qual.updated |= IW_QUAL_DBM;
1354                        wstats.qual.level = sig;
1355                        if (sig < -110)
1356                                sig = -110;
1357                        else if (sig > -40)
1358                                sig = -40;
1359                        wstats.qual.qual = sig + 110;
1360                        break;
1361                }
1362        case CFG80211_SIGNAL_TYPE_UNSPEC:
1363                if (sinfo.filled & STATION_INFO_SIGNAL) {
1364                        wstats.qual.updated |= IW_QUAL_LEVEL_UPDATED;
1365                        wstats.qual.updated |= IW_QUAL_QUAL_UPDATED;
1366                        wstats.qual.level = sinfo.signal;
1367                        wstats.qual.qual = sinfo.signal;
1368                        break;
1369                }
1370        default:
1371                wstats.qual.updated |= IW_QUAL_LEVEL_INVALID;
1372                wstats.qual.updated |= IW_QUAL_QUAL_INVALID;
1373        }
1374
1375        wstats.qual.updated |= IW_QUAL_NOISE_INVALID;
1376        if (sinfo.filled & STATION_INFO_RX_DROP_MISC)
1377                wstats.discard.misc = sinfo.rx_dropped_misc;
1378        if (sinfo.filled & STATION_INFO_TX_FAILED)
1379                wstats.discard.retries = sinfo.tx_failed;
1380
1381        return &wstats;
1382}
1383
1384static int cfg80211_wext_siwap(struct net_device *dev,
1385                               struct iw_request_info *info,
1386                               struct sockaddr *ap_addr, char *extra)
1387{
1388        struct wireless_dev *wdev = dev->ieee80211_ptr;
1389
1390        switch (wdev->iftype) {
1391        case NL80211_IFTYPE_ADHOC:
1392                return cfg80211_ibss_wext_siwap(dev, info, ap_addr, extra);
1393        case NL80211_IFTYPE_STATION:
1394                return cfg80211_mgd_wext_siwap(dev, info, ap_addr, extra);
1395        case NL80211_IFTYPE_WDS:
1396                return cfg80211_wds_wext_siwap(dev, info, ap_addr, extra);
1397        default:
1398                return -EOPNOTSUPP;
1399        }
1400}
1401
1402static int cfg80211_wext_giwap(struct net_device *dev,
1403                               struct iw_request_info *info,
1404                               struct sockaddr *ap_addr, char *extra)
1405{
1406        struct wireless_dev *wdev = dev->ieee80211_ptr;
1407
1408        switch (wdev->iftype) {
1409        case NL80211_IFTYPE_ADHOC:
1410                return cfg80211_ibss_wext_giwap(dev, info, ap_addr, extra);
1411        case NL80211_IFTYPE_STATION:
1412                return cfg80211_mgd_wext_giwap(dev, info, ap_addr, extra);
1413        case NL80211_IFTYPE_WDS:
1414                return cfg80211_wds_wext_giwap(dev, info, ap_addr, extra);
1415        default:
1416                return -EOPNOTSUPP;
1417        }
1418}
1419
1420static int cfg80211_wext_siwessid(struct net_device *dev,
1421                                  struct iw_request_info *info,
1422                                  struct iw_point *data, char *ssid)
1423{
1424        struct wireless_dev *wdev = dev->ieee80211_ptr;
1425
1426        switch (wdev->iftype) {
1427        case NL80211_IFTYPE_ADHOC:
1428                return cfg80211_ibss_wext_siwessid(dev, info, data, ssid);
1429        case NL80211_IFTYPE_STATION:
1430                return cfg80211_mgd_wext_siwessid(dev, info, data, ssid);
1431        default:
1432                return -EOPNOTSUPP;
1433        }
1434}
1435
1436static int cfg80211_wext_giwessid(struct net_device *dev,
1437                                  struct iw_request_info *info,
1438                                  struct iw_point *data, char *ssid)
1439{
1440        struct wireless_dev *wdev = dev->ieee80211_ptr;
1441
1442        data->flags = 0;
1443        data->length = 0;
1444
1445        switch (wdev->iftype) {
1446        case NL80211_IFTYPE_ADHOC:
1447                return cfg80211_ibss_wext_giwessid(dev, info, data, ssid);
1448        case NL80211_IFTYPE_STATION:
1449                return cfg80211_mgd_wext_giwessid(dev, info, data, ssid);
1450        default:
1451                return -EOPNOTSUPP;
1452        }
1453}
1454
1455static int cfg80211_wext_siwpmksa(struct net_device *dev,
1456                                  struct iw_request_info *info,
1457                                  struct iw_point *data, char *extra)
1458{
1459        struct wireless_dev *wdev = dev->ieee80211_ptr;
1460        struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1461        struct cfg80211_pmksa cfg_pmksa;
1462        struct iw_pmksa *pmksa = (struct iw_pmksa *)extra;
1463
1464        memset(&cfg_pmksa, 0, sizeof(struct cfg80211_pmksa));
1465
1466        if (wdev->iftype != NL80211_IFTYPE_STATION)
1467                return -EINVAL;
1468
1469        cfg_pmksa.bssid = pmksa->bssid.sa_data;
1470        cfg_pmksa.pmkid = pmksa->pmkid;
1471
1472        switch (pmksa->cmd) {
1473        case IW_PMKSA_ADD:
1474                if (!rdev->ops->set_pmksa)
1475                        return -EOPNOTSUPP;
1476
1477                return rdev->ops->set_pmksa(&rdev->wiphy, dev, &cfg_pmksa);
1478
1479        case IW_PMKSA_REMOVE:
1480                if (!rdev->ops->del_pmksa)
1481                        return -EOPNOTSUPP;
1482
1483                return rdev->ops->del_pmksa(&rdev->wiphy, dev, &cfg_pmksa);
1484
1485        case IW_PMKSA_FLUSH:
1486                if (!rdev->ops->flush_pmksa)
1487                        return -EOPNOTSUPP;
1488
1489                return rdev->ops->flush_pmksa(&rdev->wiphy, dev);
1490
1491        default:
1492                return -EOPNOTSUPP;
1493        }
1494}
1495
1496static const iw_handler cfg80211_handlers[] = {
1497        [IW_IOCTL_IDX(SIOCGIWNAME)]     = (iw_handler) cfg80211_wext_giwname,
1498        [IW_IOCTL_IDX(SIOCSIWFREQ)]     = (iw_handler) cfg80211_wext_siwfreq,
1499        [IW_IOCTL_IDX(SIOCGIWFREQ)]     = (iw_handler) cfg80211_wext_giwfreq,
1500        [IW_IOCTL_IDX(SIOCSIWMODE)]     = (iw_handler) cfg80211_wext_siwmode,
1501        [IW_IOCTL_IDX(SIOCGIWMODE)]     = (iw_handler) cfg80211_wext_giwmode,
1502        [IW_IOCTL_IDX(SIOCGIWRANGE)]    = (iw_handler) cfg80211_wext_giwrange,
1503        [IW_IOCTL_IDX(SIOCSIWAP)]       = (iw_handler) cfg80211_wext_siwap,
1504        [IW_IOCTL_IDX(SIOCGIWAP)]       = (iw_handler) cfg80211_wext_giwap,
1505        [IW_IOCTL_IDX(SIOCSIWMLME)]     = (iw_handler) cfg80211_wext_siwmlme,
1506        [IW_IOCTL_IDX(SIOCSIWSCAN)]     = (iw_handler) cfg80211_wext_siwscan,
1507        [IW_IOCTL_IDX(SIOCGIWSCAN)]     = (iw_handler) cfg80211_wext_giwscan,
1508        [IW_IOCTL_IDX(SIOCSIWESSID)]    = (iw_handler) cfg80211_wext_siwessid,
1509        [IW_IOCTL_IDX(SIOCGIWESSID)]    = (iw_handler) cfg80211_wext_giwessid,
1510        [IW_IOCTL_IDX(SIOCSIWRATE)]     = (iw_handler) cfg80211_wext_siwrate,
1511        [IW_IOCTL_IDX(SIOCGIWRATE)]     = (iw_handler) cfg80211_wext_giwrate,
1512        [IW_IOCTL_IDX(SIOCSIWRTS)]      = (iw_handler) cfg80211_wext_siwrts,
1513        [IW_IOCTL_IDX(SIOCGIWRTS)]      = (iw_handler) cfg80211_wext_giwrts,
1514        [IW_IOCTL_IDX(SIOCSIWFRAG)]     = (iw_handler) cfg80211_wext_siwfrag,
1515        [IW_IOCTL_IDX(SIOCGIWFRAG)]     = (iw_handler) cfg80211_wext_giwfrag,
1516        [IW_IOCTL_IDX(SIOCSIWTXPOW)]    = (iw_handler) cfg80211_wext_siwtxpower,
1517        [IW_IOCTL_IDX(SIOCGIWTXPOW)]    = (iw_handler) cfg80211_wext_giwtxpower,
1518        [IW_IOCTL_IDX(SIOCSIWRETRY)]    = (iw_handler) cfg80211_wext_siwretry,
1519        [IW_IOCTL_IDX(SIOCGIWRETRY)]    = (iw_handler) cfg80211_wext_giwretry,
1520        [IW_IOCTL_IDX(SIOCSIWENCODE)]   = (iw_handler) cfg80211_wext_siwencode,
1521        [IW_IOCTL_IDX(SIOCGIWENCODE)]   = (iw_handler) cfg80211_wext_giwencode,
1522        [IW_IOCTL_IDX(SIOCSIWPOWER)]    = (iw_handler) cfg80211_wext_siwpower,
1523        [IW_IOCTL_IDX(SIOCGIWPOWER)]    = (iw_handler) cfg80211_wext_giwpower,
1524        [IW_IOCTL_IDX(SIOCSIWGENIE)]    = (iw_handler) cfg80211_wext_siwgenie,
1525        [IW_IOCTL_IDX(SIOCSIWAUTH)]     = (iw_handler) cfg80211_wext_siwauth,
1526        [IW_IOCTL_IDX(SIOCGIWAUTH)]     = (iw_handler) cfg80211_wext_giwauth,
1527        [IW_IOCTL_IDX(SIOCSIWENCODEEXT)]= (iw_handler) cfg80211_wext_siwencodeext,
1528        [IW_IOCTL_IDX(SIOCSIWPMKSA)]    = (iw_handler) cfg80211_wext_siwpmksa,
1529};
1530
1531const struct iw_handler_def cfg80211_wext_handler = {
1532        .num_standard           = ARRAY_SIZE(cfg80211_handlers),
1533        .standard               = cfg80211_handlers,
1534        .get_wireless_stats = cfg80211_wireless_stats,
1535};
1536
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