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#include "rdev-ops.h"
  23
  24int cfg80211_wext_giwname(struct net_device *dev,
  25                          struct iw_request_info *info,
  26                          char *name, char *extra)
  27{
  28        struct wireless_dev *wdev = dev->ieee80211_ptr;
  29        struct ieee80211_supported_band *sband;
  30        bool is_ht = false, is_a = false, is_b = false, is_g = false;
  31
  32        if (!wdev)
  33                return -EOPNOTSUPP;
  34
  35        sband = wdev->wiphy->bands[IEEE80211_BAND_5GHZ];
  36        if (sband) {
  37                is_a = true;
  38                is_ht |= sband->ht_cap.ht_supported;
  39        }
  40
  41        sband = wdev->wiphy->bands[IEEE80211_BAND_2GHZ];
  42        if (sband) {
  43                int i;
  44                /* Check for mandatory rates */
  45                for (i = 0; i < sband->n_bitrates; i++) {
  46                        if (sband->bitrates[i].bitrate == 10)
  47                                is_b = true;
  48                        if (sband->bitrates[i].bitrate == 60)
  49                                is_g = true;
  50                }
  51                is_ht |= sband->ht_cap.ht_supported;
  52        }
  53
  54        strcpy(name, "IEEE 802.11");
  55        if (is_a)
  56                strcat(name, "a");
  57        if (is_b)
  58                strcat(name, "b");
  59        if (is_g)
  60                strcat(name, "g");
  61        if (is_ht)
  62                strcat(name, "n");
  63
  64        return 0;
  65}
  66EXPORT_SYMBOL_GPL(cfg80211_wext_giwname);
  67
  68int cfg80211_wext_siwmode(struct net_device *dev, struct iw_request_info *info,
  69                          u32 *mode, char *extra)
  70{
  71        struct wireless_dev *wdev = dev->ieee80211_ptr;
  72        struct cfg80211_registered_device *rdev;
  73        struct vif_params vifparams;
  74        enum nl80211_iftype type;
  75
  76        rdev = wiphy_to_dev(wdev->wiphy);
  77
  78        switch (*mode) {
  79        case IW_MODE_INFRA:
  80                type = NL80211_IFTYPE_STATION;
  81                break;
  82        case IW_MODE_ADHOC:
  83                type = NL80211_IFTYPE_ADHOC;
  84                break;
  85        case IW_MODE_REPEAT:
  86                type = NL80211_IFTYPE_WDS;
  87                break;
  88        case IW_MODE_MONITOR:
  89                type = NL80211_IFTYPE_MONITOR;
  90                break;
  91        default:
  92                return -EINVAL;
  93        }
  94
  95        if (type == wdev->iftype)
  96                return 0;
  97
  98        memset(&vifparams, 0, sizeof(vifparams));
  99
 100        return cfg80211_change_iface(rdev, dev, type, NULL, &vifparams);
 101}
 102EXPORT_SYMBOL_GPL(cfg80211_wext_siwmode);
 103
 104int cfg80211_wext_giwmode(struct net_device *dev, struct iw_request_info *info,
 105                          u32 *mode, char *extra)
 106{
 107        struct wireless_dev *wdev = dev->ieee80211_ptr;
 108
 109        if (!wdev)
 110                return -EOPNOTSUPP;
 111
 112        switch (wdev->iftype) {
 113        case NL80211_IFTYPE_AP:
 114                *mode = IW_MODE_MASTER;
 115                break;
 116        case NL80211_IFTYPE_STATION:
 117                *mode = IW_MODE_INFRA;
 118                break;
 119        case NL80211_IFTYPE_ADHOC:
 120                *mode = IW_MODE_ADHOC;
 121                break;
 122        case NL80211_IFTYPE_MONITOR:
 123                *mode = IW_MODE_MONITOR;
 124                break;
 125        case NL80211_IFTYPE_WDS:
 126                *mode = IW_MODE_REPEAT;
 127                break;
 128        case NL80211_IFTYPE_AP_VLAN:
 129                *mode = IW_MODE_SECOND;         /* FIXME */
 130                break;
 131        default:
 132                *mode = IW_MODE_AUTO;
 133                break;
 134        }
 135        return 0;
 136}
 137EXPORT_SYMBOL_GPL(cfg80211_wext_giwmode);
 138
 139
 140int cfg80211_wext_giwrange(struct net_device *dev,
 141                           struct iw_request_info *info,
 142                           struct iw_point *data, char *extra)
 143{
 144        struct wireless_dev *wdev = dev->ieee80211_ptr;
 145        struct iw_range *range = (struct iw_range *) extra;
 146        enum ieee80211_band band;
 147        int i, c = 0;
 148
 149        if (!wdev)
 150                return -EOPNOTSUPP;
 151
 152        data->length = sizeof(struct iw_range);
 153        memset(range, 0, sizeof(struct iw_range));
 154
 155        range->we_version_compiled = WIRELESS_EXT;
 156        range->we_version_source = 21;
 157        range->retry_capa = IW_RETRY_LIMIT;
 158        range->retry_flags = IW_RETRY_LIMIT;
 159        range->min_retry = 0;
 160        range->max_retry = 255;
 161        range->min_rts = 0;
 162        range->max_rts = 2347;
 163        range->min_frag = 256;
 164        range->max_frag = 2346;
 165
 166        range->max_encoding_tokens = 4;
 167
 168        range->max_qual.updated = IW_QUAL_NOISE_INVALID;
 169
 170        switch (wdev->wiphy->signal_type) {
 171        case CFG80211_SIGNAL_TYPE_NONE:
 172                break;
 173        case CFG80211_SIGNAL_TYPE_MBM:
 174                range->max_qual.level = (u8)-110;
 175                range->max_qual.qual = 70;
 176                range->avg_qual.qual = 35;
 177                range->max_qual.updated |= IW_QUAL_DBM;
 178                range->max_qual.updated |= IW_QUAL_QUAL_UPDATED;
 179                range->max_qual.updated |= IW_QUAL_LEVEL_UPDATED;
 180                break;
 181        case CFG80211_SIGNAL_TYPE_UNSPEC:
 182                range->max_qual.level = 100;
 183                range->max_qual.qual = 100;
 184                range->avg_qual.qual = 50;
 185                range->max_qual.updated |= IW_QUAL_QUAL_UPDATED;
 186                range->max_qual.updated |= IW_QUAL_LEVEL_UPDATED;
 187                break;
 188        }
 189
 190        range->avg_qual.level = range->max_qual.level / 2;
 191        range->avg_qual.noise = range->max_qual.noise / 2;
 192        range->avg_qual.updated = range->max_qual.updated;
 193
 194        for (i = 0; i < wdev->wiphy->n_cipher_suites; i++) {
 195                switch (wdev->wiphy->cipher_suites[i]) {
 196                case WLAN_CIPHER_SUITE_TKIP:
 197                        range->enc_capa |= (IW_ENC_CAPA_CIPHER_TKIP |
 198                                            IW_ENC_CAPA_WPA);
 199                        break;
 200
 201                case WLAN_CIPHER_SUITE_CCMP:
 202                        range->enc_capa |= (IW_ENC_CAPA_CIPHER_CCMP |
 203                                            IW_ENC_CAPA_WPA2);
 204                        break;
 205
 206                case WLAN_CIPHER_SUITE_WEP40:
 207                        range->encoding_size[range->num_encoding_sizes++] =
 208                                WLAN_KEY_LEN_WEP40;
 209                        break;
 210
 211                case WLAN_CIPHER_SUITE_WEP104:
 212                        range->encoding_size[range->num_encoding_sizes++] =
 213                                WLAN_KEY_LEN_WEP104;
 214                        break;
 215                }
 216        }
 217
 218        for (band = 0; band < IEEE80211_NUM_BANDS; band ++) {
 219                struct ieee80211_supported_band *sband;
 220
 221                sband = wdev->wiphy->bands[band];
 222
 223                if (!sband)
 224                        continue;
 225
 226                for (i = 0; i < sband->n_channels && c < IW_MAX_FREQUENCIES; i++) {
 227                        struct ieee80211_channel *chan = &sband->channels[i];
 228
 229                        if (!(chan->flags & IEEE80211_CHAN_DISABLED)) {
 230                                range->freq[c].i =
 231                                        ieee80211_frequency_to_channel(
 232                                                chan->center_freq);
 233                                range->freq[c].m = chan->center_freq;
 234                                range->freq[c].e = 6;
 235                                c++;
 236                        }
 237                }
 238        }
 239        range->num_channels = c;
 240        range->num_frequency = c;
 241
 242        IW_EVENT_CAPA_SET_KERNEL(range->event_capa);
 243        IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWAP);
 244        IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWSCAN);
 245
 246        if (wdev->wiphy->max_scan_ssids > 0)
 247                range->scan_capa |= IW_SCAN_CAPA_ESSID;
 248
 249        return 0;
 250}
 251EXPORT_SYMBOL_GPL(cfg80211_wext_giwrange);
 252
 253
 254/**
 255 * cfg80211_wext_freq - get wext frequency for non-"auto"
 256 * @wiphy: the wiphy
 257 * @freq: the wext freq encoding
 258 *
 259 * Returns a frequency, or a negative error code, or 0 for auto.
 260 */
 261int cfg80211_wext_freq(struct wiphy *wiphy, struct iw_freq *freq)
 262{
 263        /*
 264         * Parse frequency - return 0 for auto and
 265         * -EINVAL for impossible things.
 266         */
 267        if (freq->e == 0) {
 268                enum ieee80211_band band = IEEE80211_BAND_2GHZ;
 269                if (freq->m < 0)
 270                        return 0;
 271                if (freq->m > 14)
 272                        band = IEEE80211_BAND_5GHZ;
 273                return ieee80211_channel_to_frequency(freq->m, band);
 274        } else {
 275                int i, div = 1000000;
 276                for (i = 0; i < freq->e; i++)
 277                        div /= 10;
 278                if (div <= 0)
 279                        return -EINVAL;
 280                return freq->m / div;
 281        }
 282}
 283
 284int cfg80211_wext_siwrts(struct net_device *dev,
 285                         struct iw_request_info *info,
 286                         struct iw_param *rts, char *extra)
 287{
 288        struct wireless_dev *wdev = dev->ieee80211_ptr;
 289        struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
 290        u32 orts = wdev->wiphy->rts_threshold;
 291        int err;
 292
 293        if (rts->disabled || !rts->fixed)
 294                wdev->wiphy->rts_threshold = (u32) -1;
 295        else if (rts->value < 0)
 296                return -EINVAL;
 297        else
 298                wdev->wiphy->rts_threshold = rts->value;
 299
 300        err = rdev_set_wiphy_params(rdev, WIPHY_PARAM_RTS_THRESHOLD);
 301        if (err)
 302                wdev->wiphy->rts_threshold = orts;
 303
 304        return err;
 305}
 306EXPORT_SYMBOL_GPL(cfg80211_wext_siwrts);
 307
 308int cfg80211_wext_giwrts(struct net_device *dev,
 309                         struct iw_request_info *info,
 310                         struct iw_param *rts, char *extra)
 311{
 312        struct wireless_dev *wdev = dev->ieee80211_ptr;
 313
 314        rts->value = wdev->wiphy->rts_threshold;
 315        rts->disabled = rts->value == (u32) -1;
 316        rts->fixed = 1;
 317
 318        return 0;
 319}
 320EXPORT_SYMBOL_GPL(cfg80211_wext_giwrts);
 321
 322int cfg80211_wext_siwfrag(struct net_device *dev,
 323                          struct iw_request_info *info,
 324                          struct iw_param *frag, char *extra)
 325{
 326        struct wireless_dev *wdev = dev->ieee80211_ptr;
 327        struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
 328        u32 ofrag = wdev->wiphy->frag_threshold;
 329        int err;
 330
 331        if (frag->disabled || !frag->fixed)
 332                wdev->wiphy->frag_threshold = (u32) -1;
 333        else if (frag->value < 256)
 334                return -EINVAL;
 335        else {
 336                /* Fragment length must be even, so strip LSB. */
 337                wdev->wiphy->frag_threshold = frag->value & ~0x1;
 338        }
 339
 340        err = rdev_set_wiphy_params(rdev, WIPHY_PARAM_FRAG_THRESHOLD);
 341        if (err)
 342                wdev->wiphy->frag_threshold = ofrag;
 343
 344        return err;
 345}
 346EXPORT_SYMBOL_GPL(cfg80211_wext_siwfrag);
 347
 348int cfg80211_wext_giwfrag(struct net_device *dev,
 349                          struct iw_request_info *info,
 350                          struct iw_param *frag, char *extra)
 351{
 352        struct wireless_dev *wdev = dev->ieee80211_ptr;
 353
 354        frag->value = wdev->wiphy->frag_threshold;
 355        frag->disabled = frag->value == (u32) -1;
 356        frag->fixed = 1;
 357
 358        return 0;
 359}
 360EXPORT_SYMBOL_GPL(cfg80211_wext_giwfrag);
 361
 362static int cfg80211_wext_siwretry(struct net_device *dev,
 363                                  struct iw_request_info *info,
 364                                  struct iw_param *retry, char *extra)
 365{
 366        struct wireless_dev *wdev = dev->ieee80211_ptr;
 367        struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
 368        u32 changed = 0;
 369        u8 olong = wdev->wiphy->retry_long;
 370        u8 oshort = wdev->wiphy->retry_short;
 371        int err;
 372
 373        if (retry->disabled ||
 374            (retry->flags & IW_RETRY_TYPE) != IW_RETRY_LIMIT)
 375                return -EINVAL;
 376
 377        if (retry->flags & IW_RETRY_LONG) {
 378                wdev->wiphy->retry_long = retry->value;
 379                changed |= WIPHY_PARAM_RETRY_LONG;
 380        } else if (retry->flags & IW_RETRY_SHORT) {
 381                wdev->wiphy->retry_short = retry->value;
 382                changed |= WIPHY_PARAM_RETRY_SHORT;
 383        } else {
 384                wdev->wiphy->retry_short = retry->value;
 385                wdev->wiphy->retry_long = retry->value;
 386                changed |= WIPHY_PARAM_RETRY_LONG;
 387                changed |= WIPHY_PARAM_RETRY_SHORT;
 388        }
 389
 390        if (!changed)
 391                return 0;
 392
 393        err = rdev_set_wiphy_params(rdev, changed);
 394        if (err) {
 395                wdev->wiphy->retry_short = oshort;
 396                wdev->wiphy->retry_long = olong;
 397        }
 398
 399        return err;
 400}
 401
 402int cfg80211_wext_giwretry(struct net_device *dev,
 403                           struct iw_request_info *info,
 404                           struct iw_param *retry, char *extra)
 405{
 406        struct wireless_dev *wdev = dev->ieee80211_ptr;
 407
 408        retry->disabled = 0;
 409
 410        if (retry->flags == 0 || (retry->flags & IW_RETRY_SHORT)) {
 411                /*
 412                 * First return short value, iwconfig will ask long value
 413                 * later if needed
 414                 */
 415                retry->flags |= IW_RETRY_LIMIT;
 416                retry->value = wdev->wiphy->retry_short;
 417                if (wdev->wiphy->retry_long != wdev->wiphy->retry_short)
 418                        retry->flags |= IW_RETRY_LONG;
 419
 420                return 0;
 421        }
 422
 423        if (retry->flags & IW_RETRY_LONG) {
 424                retry->flags = IW_RETRY_LIMIT | IW_RETRY_LONG;
 425                retry->value = wdev->wiphy->retry_long;
 426        }
 427
 428        return 0;
 429}
 430EXPORT_SYMBOL_GPL(cfg80211_wext_giwretry);
 431
 432static int __cfg80211_set_encryption(struct cfg80211_registered_device *rdev,
 433                                     struct net_device *dev, bool pairwise,
 434                                     const u8 *addr, bool remove, bool tx_key,
 435                                     int idx, struct key_params *params)
 436{
 437        struct wireless_dev *wdev = dev->ieee80211_ptr;
 438        int err, i;
 439        bool rejoin = false;
 440
 441        if (pairwise && !addr)
 442                return -EINVAL;
 443
 444        if (!wdev->wext.keys) {
 445                wdev->wext.keys = kzalloc(sizeof(*wdev->wext.keys),
 446                                              GFP_KERNEL);
 447                if (!wdev->wext.keys)
 448                        return -ENOMEM;
 449                for (i = 0; i < 6; i++)
 450                        wdev->wext.keys->params[i].key =
 451                                wdev->wext.keys->data[i];
 452        }
 453
 454        if (wdev->iftype != NL80211_IFTYPE_ADHOC &&
 455            wdev->iftype != NL80211_IFTYPE_STATION)
 456                return -EOPNOTSUPP;
 457
 458        if (params->cipher == WLAN_CIPHER_SUITE_AES_CMAC) {
 459                if (!wdev->current_bss)
 460                        return -ENOLINK;
 461
 462                if (!rdev->ops->set_default_mgmt_key)
 463                        return -EOPNOTSUPP;
 464
 465                if (idx < 4 || idx > 5)
 466                        return -EINVAL;
 467        } else if (idx < 0 || idx > 3)
 468                return -EINVAL;
 469
 470        if (remove) {
 471                err = 0;
 472                if (wdev->current_bss) {
 473                        /*
 474                         * If removing the current TX key, we will need to
 475                         * join a new IBSS without the privacy bit clear.
 476                         */
 477                        if (idx == wdev->wext.default_key &&
 478                            wdev->iftype == NL80211_IFTYPE_ADHOC) {
 479                                __cfg80211_leave_ibss(rdev, wdev->netdev, true);
 480                                rejoin = true;
 481                        }
 482
 483                        if (!pairwise && addr &&
 484                            !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
 485                                err = -ENOENT;
 486                        else
 487                                err = rdev_del_key(rdev, dev, idx, pairwise,
 488                                                   addr);
 489                }
 490                wdev->wext.connect.privacy = false;
 491                /*
 492                 * Applications using wireless extensions expect to be
 493                 * able to delete keys that don't exist, so allow that.
 494                 */
 495                if (err == -ENOENT)
 496                        err = 0;
 497                if (!err) {
 498                        if (!addr) {
 499                                wdev->wext.keys->params[idx].key_len = 0;
 500                                wdev->wext.keys->params[idx].cipher = 0;
 501                        }
 502                        if (idx == wdev->wext.default_key)
 503                                wdev->wext.default_key = -1;
 504                        else if (idx == wdev->wext.default_mgmt_key)
 505                                wdev->wext.default_mgmt_key = -1;
 506                }
 507
 508                if (!err && rejoin)
 509                        err = cfg80211_ibss_wext_join(rdev, wdev);
 510
 511                return err;
 512        }
 513
 514        if (addr)
 515                tx_key = false;
 516
 517        if (cfg80211_validate_key_settings(rdev, params, idx, pairwise, addr))
 518                return -EINVAL;
 519
 520        err = 0;
 521        if (wdev->current_bss)
 522                err = rdev_add_key(rdev, dev, idx, pairwise, addr, params);
 523        if (err)
 524                return err;
 525
 526        if (!addr) {
 527                wdev->wext.keys->params[idx] = *params;
 528                memcpy(wdev->wext.keys->data[idx],
 529                        params->key, params->key_len);
 530                wdev->wext.keys->params[idx].key =
 531                        wdev->wext.keys->data[idx];
 532        }
 533
 534        if ((params->cipher == WLAN_CIPHER_SUITE_WEP40 ||
 535             params->cipher == WLAN_CIPHER_SUITE_WEP104) &&
 536            (tx_key || (!addr && wdev->wext.default_key == -1))) {
 537                if (wdev->current_bss) {
 538                        /*
 539                         * If we are getting a new TX key from not having
 540                         * had one before we need to join a new IBSS with
 541                         * the privacy bit set.
 542                         */
 543                        if (wdev->iftype == NL80211_IFTYPE_ADHOC &&
 544                            wdev->wext.default_key == -1) {
 545                                __cfg80211_leave_ibss(rdev, wdev->netdev, true);
 546                                rejoin = true;
 547                        }
 548                        err = rdev_set_default_key(rdev, dev, idx, true, true);
 549                }
 550                if (!err) {
 551                        wdev->wext.default_key = idx;
 552                        if (rejoin)
 553                                err = cfg80211_ibss_wext_join(rdev, wdev);
 554                }
 555                return err;
 556        }
 557
 558        if (params->cipher == WLAN_CIPHER_SUITE_AES_CMAC &&
 559            (tx_key || (!addr && wdev->wext.default_mgmt_key == -1))) {
 560                if (wdev->current_bss)
 561                        err = rdev_set_default_mgmt_key(rdev, dev, idx);
 562                if (!err)
 563                        wdev->wext.default_mgmt_key = idx;
 564                return err;
 565        }
 566
 567        return 0;
 568}
 569
 570static int cfg80211_set_encryption(struct cfg80211_registered_device *rdev,
 571                                   struct net_device *dev, bool pairwise,
 572                                   const u8 *addr, bool remove, bool tx_key,
 573                                   int idx, struct key_params *params)
 574{
 575        int err;
 576
 577        wdev_lock(dev->ieee80211_ptr);
 578        err = __cfg80211_set_encryption(rdev, dev, pairwise, addr,
 579                                        remove, tx_key, idx, params);
 580        wdev_unlock(dev->ieee80211_ptr);
 581
 582        return err;
 583}
 584
 585static int cfg80211_wext_siwencode(struct net_device *dev,
 586                                   struct iw_request_info *info,
 587                                   struct iw_point *erq, char *keybuf)
 588{
 589        struct wireless_dev *wdev = dev->ieee80211_ptr;
 590        struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
 591        int idx, err;
 592        bool remove = false;
 593        struct key_params params;
 594
 595        if (wdev->iftype != NL80211_IFTYPE_STATION &&
 596            wdev->iftype != NL80211_IFTYPE_ADHOC)
 597                return -EOPNOTSUPP;
 598
 599        /* no use -- only MFP (set_default_mgmt_key) is optional */
 600        if (!rdev->ops->del_key ||
 601            !rdev->ops->add_key ||
 602            !rdev->ops->set_default_key)
 603                return -EOPNOTSUPP;
 604
 605        idx = erq->flags & IW_ENCODE_INDEX;
 606        if (idx == 0) {
 607                idx = wdev->wext.default_key;
 608                if (idx < 0)
 609                        idx = 0;
 610        } else if (idx < 1 || idx > 4)
 611                return -EINVAL;
 612        else
 613                idx--;
 614
 615        if (erq->flags & IW_ENCODE_DISABLED)
 616                remove = true;
 617        else if (erq->length == 0) {
 618                /* No key data - just set the default TX key index */
 619                err = 0;
 620                wdev_lock(wdev);
 621                if (wdev->current_bss)
 622                        err = rdev_set_default_key(rdev, dev, idx, true,
 623                                                   true);
 624                if (!err)
 625                        wdev->wext.default_key = idx;
 626                wdev_unlock(wdev);
 627                return err;
 628        }
 629
 630        memset(&params, 0, sizeof(params));
 631        params.key = keybuf;
 632        params.key_len = erq->length;
 633        if (erq->length == 5)
 634                params.cipher = WLAN_CIPHER_SUITE_WEP40;
 635        else if (erq->length == 13)
 636                params.cipher = WLAN_CIPHER_SUITE_WEP104;
 637        else if (!remove)
 638                return -EINVAL;
 639
 640        return cfg80211_set_encryption(rdev, dev, false, NULL, remove,
 641                                       wdev->wext.default_key == -1,
 642                                       idx, &params);
 643}
 644
 645static int cfg80211_wext_siwencodeext(struct net_device *dev,
 646                                      struct iw_request_info *info,
 647                                      struct iw_point *erq, char *extra)
 648{
 649        struct wireless_dev *wdev = dev->ieee80211_ptr;
 650        struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
 651        struct iw_encode_ext *ext = (struct iw_encode_ext *) extra;
 652        const u8 *addr;
 653        int idx;
 654        bool remove = false;
 655        struct key_params params;
 656        u32 cipher;
 657
 658        if (wdev->iftype != NL80211_IFTYPE_STATION &&
 659            wdev->iftype != NL80211_IFTYPE_ADHOC)
 660                return -EOPNOTSUPP;
 661
 662        /* no use -- only MFP (set_default_mgmt_key) is optional */
 663        if (!rdev->ops->del_key ||
 664            !rdev->ops->add_key ||
 665            !rdev->ops->set_default_key)
 666                return -EOPNOTSUPP;
 667
 668        switch (ext->alg) {
 669        case IW_ENCODE_ALG_NONE:
 670                remove = true;
 671                cipher = 0;
 672                break;
 673        case IW_ENCODE_ALG_WEP:
 674                if (ext->key_len == 5)
 675                        cipher = WLAN_CIPHER_SUITE_WEP40;
 676                else if (ext->key_len == 13)
 677                        cipher = WLAN_CIPHER_SUITE_WEP104;
 678                else
 679                        return -EINVAL;
 680                break;
 681        case IW_ENCODE_ALG_TKIP:
 682                cipher = WLAN_CIPHER_SUITE_TKIP;
 683                break;
 684        case IW_ENCODE_ALG_CCMP:
 685                cipher = WLAN_CIPHER_SUITE_CCMP;
 686                break;
 687        case IW_ENCODE_ALG_AES_CMAC:
 688                cipher = WLAN_CIPHER_SUITE_AES_CMAC;
 689                break;
 690        default:
 691                return -EOPNOTSUPP;
 692        }
 693
 694        if (erq->flags & IW_ENCODE_DISABLED)
 695                remove = true;
 696
 697        idx = erq->flags & IW_ENCODE_INDEX;
 698        if (cipher == WLAN_CIPHER_SUITE_AES_CMAC) {
 699                if (idx < 4 || idx > 5) {
 700                        idx = wdev->wext.default_mgmt_key;
 701                        if (idx < 0)
 702                                return -EINVAL;
 703                } else
 704                        idx--;
 705        } else {
 706                if (idx < 1 || idx > 4) {
 707                        idx = wdev->wext.default_key;
 708                        if (idx < 0)
 709                                return -EINVAL;
 710                } else
 711                        idx--;
 712        }
 713
 714        addr = ext->addr.sa_data;
 715        if (is_broadcast_ether_addr(addr))
 716                addr = NULL;
 717
 718        memset(&params, 0, sizeof(params));
 719        params.key = ext->key;
 720        params.key_len = ext->key_len;
 721        params.cipher = cipher;
 722
 723        if (ext->ext_flags & IW_ENCODE_EXT_RX_SEQ_VALID) {
 724                params.seq = ext->rx_seq;
 725                params.seq_len = 6;
 726        }
 727
 728        return cfg80211_set_encryption(
 729                        rdev, dev,
 730                        !(ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY),
 731                        addr, remove,
 732                        ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY,
 733                        idx, &params);
 734}
 735
 736static int cfg80211_wext_giwencode(struct net_device *dev,
 737                                   struct iw_request_info *info,
 738                                   struct iw_point *erq, char *keybuf)
 739{
 740        struct wireless_dev *wdev = dev->ieee80211_ptr;
 741        int idx;
 742
 743        if (wdev->iftype != NL80211_IFTYPE_STATION &&
 744            wdev->iftype != NL80211_IFTYPE_ADHOC)
 745                return -EOPNOTSUPP;
 746
 747        idx = erq->flags & IW_ENCODE_INDEX;
 748        if (idx == 0) {
 749                idx = wdev->wext.default_key;
 750                if (idx < 0)
 751                        idx = 0;
 752        } else if (idx < 1 || idx > 4)
 753                return -EINVAL;
 754        else
 755                idx--;
 756
 757        erq->flags = idx + 1;
 758
 759        if (!wdev->wext.keys || !wdev->wext.keys->params[idx].cipher) {
 760                erq->flags |= IW_ENCODE_DISABLED;
 761                erq->length = 0;
 762                return 0;
 763        }
 764
 765        erq->length = min_t(size_t, erq->length,
 766                            wdev->wext.keys->params[idx].key_len);
 767        memcpy(keybuf, wdev->wext.keys->params[idx].key, erq->length);
 768        erq->flags |= IW_ENCODE_ENABLED;
 769
 770        return 0;
 771}
 772
 773static int cfg80211_wext_siwfreq(struct net_device *dev,
 774                                 struct iw_request_info *info,
 775                                 struct iw_freq *wextfreq, char *extra)
 776{
 777        struct wireless_dev *wdev = dev->ieee80211_ptr;
 778        struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
 779        struct cfg80211_chan_def chandef = {
 780                .width = NL80211_CHAN_WIDTH_20_NOHT,
 781        };
 782        int freq;
 783
 784        switch (wdev->iftype) {
 785        case NL80211_IFTYPE_STATION:
 786                return cfg80211_mgd_wext_siwfreq(dev, info, wextfreq, extra);
 787        case NL80211_IFTYPE_ADHOC:
 788                return cfg80211_ibss_wext_siwfreq(dev, info, wextfreq, extra);
 789        case NL80211_IFTYPE_MONITOR:
 790                freq = cfg80211_wext_freq(wdev->wiphy, wextfreq);
 791                if (freq < 0)
 792                        return freq;
 793                if (freq == 0)
 794                        return -EINVAL;
 795                chandef.center_freq1 = freq;
 796                chandef.chan = ieee80211_get_channel(&rdev->wiphy, freq);
 797                if (!chandef.chan)
 798                        return -EINVAL;
 799                return cfg80211_set_monitor_channel(rdev, &chandef);
 800        case NL80211_IFTYPE_MESH_POINT:
 801                freq = cfg80211_wext_freq(wdev->wiphy, wextfreq);
 802                if (freq < 0)
 803                        return freq;
 804                if (freq == 0)
 805                        return -EINVAL;
 806                chandef.center_freq1 = freq;
 807                chandef.chan = ieee80211_get_channel(&rdev->wiphy, freq);
 808                if (!chandef.chan)
 809                        return -EINVAL;
 810                return cfg80211_set_mesh_channel(rdev, wdev, &chandef);
 811        default:
 812                return -EOPNOTSUPP;
 813        }
 814}
 815
 816static int cfg80211_wext_giwfreq(struct net_device *dev,
 817                                 struct iw_request_info *info,
 818                                 struct iw_freq *freq, char *extra)
 819{
 820        struct wireless_dev *wdev = dev->ieee80211_ptr;
 821        struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
 822        struct cfg80211_chan_def chandef;
 823        int ret;
 824
 825        switch (wdev->iftype) {
 826        case NL80211_IFTYPE_STATION:
 827                return cfg80211_mgd_wext_giwfreq(dev, info, freq, extra);
 828        case NL80211_IFTYPE_ADHOC:
 829                return cfg80211_ibss_wext_giwfreq(dev, info, freq, extra);
 830        case NL80211_IFTYPE_MONITOR:
 831                if (!rdev->ops->get_channel)
 832                        return -EINVAL;
 833
 834                ret = rdev_get_channel(rdev, wdev, &chandef);
 835                if (ret)
 836                        return ret;
 837                freq->m = chandef.chan->center_freq;
 838                freq->e = 6;
 839                return 0;
 840        default:
 841                return -EINVAL;
 842        }
 843}
 844
 845static int cfg80211_wext_siwtxpower(struct net_device *dev,
 846                                    struct iw_request_info *info,
 847                                    union iwreq_data *data, char *extra)
 848{
 849        struct wireless_dev *wdev = dev->ieee80211_ptr;
 850        struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
 851        enum nl80211_tx_power_setting type;
 852        int dbm = 0;
 853
 854        if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM)
 855                return -EINVAL;
 856        if (data->txpower.flags & IW_TXPOW_RANGE)
 857                return -EINVAL;
 858
 859        if (!rdev->ops->set_tx_power)
 860                return -EOPNOTSUPP;
 861
 862        /* only change when not disabling */
 863        if (!data->txpower.disabled) {
 864                rfkill_set_sw_state(rdev->rfkill, false);
 865
 866                if (data->txpower.fixed) {
 867                        /*
 868                         * wext doesn't support negative values, see
 869                         * below where it's for automatic
 870                         */
 871                        if (data->txpower.value < 0)
 872                                return -EINVAL;
 873                        dbm = data->txpower.value;
 874                        type = NL80211_TX_POWER_FIXED;
 875                        /* TODO: do regulatory check! */
 876                } else {
 877                        /*
 878                         * Automatic power level setting, max being the value
 879                         * passed in from userland.
 880                         */
 881                        if (data->txpower.value < 0) {
 882                                type = NL80211_TX_POWER_AUTOMATIC;
 883                        } else {
 884                                dbm = data->txpower.value;
 885                                type = NL80211_TX_POWER_LIMITED;
 886                        }
 887                }
 888        } else {
 889                rfkill_set_sw_state(rdev->rfkill, true);
 890                schedule_work(&rdev->rfkill_sync);
 891                return 0;
 892        }
 893
 894        return rdev_set_tx_power(rdev, wdev, type, DBM_TO_MBM(dbm));
 895}
 896
 897static int cfg80211_wext_giwtxpower(struct net_device *dev,
 898                                    struct iw_request_info *info,
 899                                    union iwreq_data *data, char *extra)
 900{
 901        struct wireless_dev *wdev = dev->ieee80211_ptr;
 902        struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
 903        int err, val;
 904
 905        if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM)
 906                return -EINVAL;
 907        if (data->txpower.flags & IW_TXPOW_RANGE)
 908                return -EINVAL;
 909
 910        if (!rdev->ops->get_tx_power)
 911                return -EOPNOTSUPP;
 912
 913        err = rdev_get_tx_power(rdev, wdev, &val);
 914        if (err)
 915                return err;
 916
 917        /* well... oh well */
 918        data->txpower.fixed = 1;
 919        data->txpower.disabled = rfkill_blocked(rdev->rfkill);
 920        data->txpower.value = val;
 921        data->txpower.flags = IW_TXPOW_DBM;
 922
 923        return 0;
 924}
 925
 926static int cfg80211_set_auth_alg(struct wireless_dev *wdev,
 927                                 s32 auth_alg)
 928{
 929        int nr_alg = 0;
 930
 931        if (!auth_alg)
 932                return -EINVAL;
 933
 934        if (auth_alg & ~(IW_AUTH_ALG_OPEN_SYSTEM |
 935                         IW_AUTH_ALG_SHARED_KEY |
 936                         IW_AUTH_ALG_LEAP))
 937                return -EINVAL;
 938
 939        if (auth_alg & IW_AUTH_ALG_OPEN_SYSTEM) {
 940                nr_alg++;
 941                wdev->wext.connect.auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
 942        }
 943
 944        if (auth_alg & IW_AUTH_ALG_SHARED_KEY) {
 945                nr_alg++;
 946                wdev->wext.connect.auth_type = NL80211_AUTHTYPE_SHARED_KEY;
 947        }
 948
 949        if (auth_alg & IW_AUTH_ALG_LEAP) {
 950                nr_alg++;
 951                wdev->wext.connect.auth_type = NL80211_AUTHTYPE_NETWORK_EAP;
 952        }
 953
 954        if (nr_alg > 1)
 955                wdev->wext.connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
 956
 957        return 0;
 958}
 959
 960static int cfg80211_set_wpa_version(struct wireless_dev *wdev, u32 wpa_versions)
 961{
 962        if (wpa_versions & ~(IW_AUTH_WPA_VERSION_WPA |
 963                             IW_AUTH_WPA_VERSION_WPA2|
 964                             IW_AUTH_WPA_VERSION_DISABLED))
 965                return -EINVAL;
 966
 967        if ((wpa_versions & IW_AUTH_WPA_VERSION_DISABLED) &&
 968            (wpa_versions & (IW_AUTH_WPA_VERSION_WPA|
 969                             IW_AUTH_WPA_VERSION_WPA2)))
 970                return -EINVAL;
 971
 972        if (wpa_versions & IW_AUTH_WPA_VERSION_DISABLED)
 973                wdev->wext.connect.crypto.wpa_versions &=
 974                        ~(NL80211_WPA_VERSION_1|NL80211_WPA_VERSION_2);
 975
 976        if (wpa_versions & IW_AUTH_WPA_VERSION_WPA)
 977                wdev->wext.connect.crypto.wpa_versions |=
 978                        NL80211_WPA_VERSION_1;
 979
 980        if (wpa_versions & IW_AUTH_WPA_VERSION_WPA2)
 981                wdev->wext.connect.crypto.wpa_versions |=
 982                        NL80211_WPA_VERSION_2;
 983
 984        return 0;
 985}
 986
 987static int cfg80211_set_cipher_group(struct wireless_dev *wdev, u32 cipher)
 988{
 989        if (cipher & IW_AUTH_CIPHER_WEP40)
 990                wdev->wext.connect.crypto.cipher_group =
 991                        WLAN_CIPHER_SUITE_WEP40;
 992        else if (cipher & IW_AUTH_CIPHER_WEP104)
 993                wdev->wext.connect.crypto.cipher_group =
 994                        WLAN_CIPHER_SUITE_WEP104;
 995        else if (cipher & IW_AUTH_CIPHER_TKIP)
 996                wdev->wext.connect.crypto.cipher_group =
 997                        WLAN_CIPHER_SUITE_TKIP;
 998        else if (cipher & IW_AUTH_CIPHER_CCMP)
 999                wdev->wext.connect.crypto.cipher_group =
1000                        WLAN_CIPHER_SUITE_CCMP;
1001        else if (cipher & IW_AUTH_CIPHER_AES_CMAC)
1002                wdev->wext.connect.crypto.cipher_group =
1003                        WLAN_CIPHER_SUITE_AES_CMAC;
1004        else if (cipher & IW_AUTH_CIPHER_NONE)
1005                wdev->wext.connect.crypto.cipher_group = 0;
1006        else
1007                return -EINVAL;
1008
1009        return 0;
1010}
1011
1012static int cfg80211_set_cipher_pairwise(struct wireless_dev *wdev, u32 cipher)
1013{
1014        int nr_ciphers = 0;
1015        u32 *ciphers_pairwise = wdev->wext.connect.crypto.ciphers_pairwise;
1016
1017        if (cipher & IW_AUTH_CIPHER_WEP40) {
1018                ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_WEP40;
1019                nr_ciphers++;
1020        }
1021
1022        if (cipher & IW_AUTH_CIPHER_WEP104) {
1023                ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_WEP104;
1024                nr_ciphers++;
1025        }
1026
1027        if (cipher & IW_AUTH_CIPHER_TKIP) {
1028                ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_TKIP;
1029                nr_ciphers++;
1030        }
1031
1032        if (cipher & IW_AUTH_CIPHER_CCMP) {
1033                ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_CCMP;
1034                nr_ciphers++;
1035        }
1036
1037        if (cipher & IW_AUTH_CIPHER_AES_CMAC) {
1038                ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_AES_CMAC;
1039                nr_ciphers++;
1040        }
1041
1042        BUILD_BUG_ON(NL80211_MAX_NR_CIPHER_SUITES < 5);
1043
1044        wdev->wext.connect.crypto.n_ciphers_pairwise = nr_ciphers;
1045
1046        return 0;
1047}
1048
1049
1050static int cfg80211_set_key_mgt(struct wireless_dev *wdev, u32 key_mgt)
1051{
1052        int nr_akm_suites = 0;
1053
1054        if (key_mgt & ~(IW_AUTH_KEY_MGMT_802_1X |
1055                        IW_AUTH_KEY_MGMT_PSK))
1056                return -EINVAL;
1057
1058        if (key_mgt & IW_AUTH_KEY_MGMT_802_1X) {
1059                wdev->wext.connect.crypto.akm_suites[nr_akm_suites] =
1060                        WLAN_AKM_SUITE_8021X;
1061                nr_akm_suites++;
1062        }
1063
1064        if (key_mgt & IW_AUTH_KEY_MGMT_PSK) {
1065                wdev->wext.connect.crypto.akm_suites[nr_akm_suites] =
1066                        WLAN_AKM_SUITE_PSK;
1067                nr_akm_suites++;
1068        }
1069
1070        wdev->wext.connect.crypto.n_akm_suites = nr_akm_suites;
1071
1072        return 0;
1073}
1074
1075static int cfg80211_wext_siwauth(struct net_device *dev,
1076                                 struct iw_request_info *info,
1077                                 struct iw_param *data, char *extra)
1078{
1079        struct wireless_dev *wdev = dev->ieee80211_ptr;
1080
1081        if (wdev->iftype != NL80211_IFTYPE_STATION)
1082                return -EOPNOTSUPP;
1083
1084        switch (data->flags & IW_AUTH_INDEX) {
1085        case IW_AUTH_PRIVACY_INVOKED:
1086                wdev->wext.connect.privacy = data->value;
1087                return 0;
1088        case IW_AUTH_WPA_VERSION:
1089                return cfg80211_set_wpa_version(wdev, data->value);
1090        case IW_AUTH_CIPHER_GROUP:
1091                return cfg80211_set_cipher_group(wdev, data->value);
1092        case IW_AUTH_KEY_MGMT:
1093                return cfg80211_set_key_mgt(wdev, data->value);
1094        case IW_AUTH_CIPHER_PAIRWISE:
1095                return cfg80211_set_cipher_pairwise(wdev, data->value);
1096        case IW_AUTH_80211_AUTH_ALG:
1097                return cfg80211_set_auth_alg(wdev, data->value);
1098        case IW_AUTH_WPA_ENABLED:
1099        case IW_AUTH_RX_UNENCRYPTED_EAPOL:
1100        case IW_AUTH_DROP_UNENCRYPTED:
1101        case IW_AUTH_MFP:
1102                return 0;
1103        default:
1104                return -EOPNOTSUPP;
1105        }
1106}
1107
1108static int cfg80211_wext_giwauth(struct net_device *dev,
1109                                 struct iw_request_info *info,
1110                                 struct iw_param *data, char *extra)
1111{
1112        /* XXX: what do we need? */
1113
1114        return -EOPNOTSUPP;
1115}
1116
1117static int cfg80211_wext_siwpower(struct net_device *dev,
1118                                  struct iw_request_info *info,
1119                                  struct iw_param *wrq, char *extra)
1120{
1121        struct wireless_dev *wdev = dev->ieee80211_ptr;
1122        struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1123        bool ps = wdev->ps;
1124        int timeout = wdev->ps_timeout;
1125        int err;
1126
1127        if (wdev->iftype != NL80211_IFTYPE_STATION)
1128                return -EINVAL;
1129
1130        if (!rdev->ops->set_power_mgmt)
1131                return -EOPNOTSUPP;
1132
1133        if (wrq->disabled) {
1134                ps = false;
1135        } else {
1136                switch (wrq->flags & IW_POWER_MODE) {
1137                case IW_POWER_ON:       /* If not specified */
1138                case IW_POWER_MODE:     /* If set all mask */
1139                case IW_POWER_ALL_R:    /* If explicitely state all */
1140                        ps = true;
1141                        break;
1142                default:                /* Otherwise we ignore */
1143                        return -EINVAL;
1144                }
1145
1146                if (wrq->flags & ~(IW_POWER_MODE | IW_POWER_TIMEOUT))
1147                        return -EINVAL;
1148
1149                if (wrq->flags & IW_POWER_TIMEOUT)
1150                        timeout = wrq->value / 1000;
1151        }
1152
1153        err = rdev_set_power_mgmt(rdev, dev, ps, timeout);
1154        if (err)
1155                return err;
1156
1157        wdev->ps = ps;
1158        wdev->ps_timeout = timeout;
1159
1160        return 0;
1161
1162}
1163
1164static int cfg80211_wext_giwpower(struct net_device *dev,
1165                                  struct iw_request_info *info,
1166                                  struct iw_param *wrq, char *extra)
1167{
1168        struct wireless_dev *wdev = dev->ieee80211_ptr;
1169
1170        wrq->disabled = !wdev->ps;
1171
1172        return 0;
1173}
1174
1175static int cfg80211_wds_wext_siwap(struct net_device *dev,
1176                                   struct iw_request_info *info,
1177                                   struct sockaddr *addr, char *extra)
1178{
1179        struct wireless_dev *wdev = dev->ieee80211_ptr;
1180        struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1181        int err;
1182
1183        if (WARN_ON(wdev->iftype != NL80211_IFTYPE_WDS))
1184                return -EINVAL;
1185
1186        if (addr->sa_family != ARPHRD_ETHER)
1187                return -EINVAL;
1188
1189        if (netif_running(dev))
1190                return -EBUSY;
1191
1192        if (!rdev->ops->set_wds_peer)
1193                return -EOPNOTSUPP;
1194
1195        err = rdev_set_wds_peer(rdev, dev, (u8 *)&addr->sa_data);
1196        if (err)
1197                return err;
1198
1199        memcpy(&wdev->wext.bssid, (u8 *) &addr->sa_data, ETH_ALEN);
1200
1201        return 0;
1202}
1203
1204static int cfg80211_wds_wext_giwap(struct net_device *dev,
1205                                   struct iw_request_info *info,
1206                                   struct sockaddr *addr, char *extra)
1207{
1208        struct wireless_dev *wdev = dev->ieee80211_ptr;
1209
1210        if (WARN_ON(wdev->iftype != NL80211_IFTYPE_WDS))
1211                return -EINVAL;
1212
1213        addr->sa_family = ARPHRD_ETHER;
1214        memcpy(&addr->sa_data, wdev->wext.bssid, ETH_ALEN);
1215
1216        return 0;
1217}
1218
1219static int cfg80211_wext_siwrate(struct net_device *dev,
1220                                 struct iw_request_info *info,
1221                                 struct iw_param *rate, char *extra)
1222{
1223        struct wireless_dev *wdev = dev->ieee80211_ptr;
1224        struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1225        struct cfg80211_bitrate_mask mask;
1226        u32 fixed, maxrate;
1227        struct ieee80211_supported_band *sband;
1228        int band, ridx;
1229        bool match = false;
1230
1231        if (!rdev->ops->set_bitrate_mask)
1232                return -EOPNOTSUPP;
1233
1234        memset(&mask, 0, sizeof(mask));
1235        fixed = 0;
1236        maxrate = (u32)-1;
1237
1238        if (rate->value < 0) {
1239                /* nothing */
1240        } else if (rate->fixed) {
1241                fixed = rate->value / 100000;
1242        } else {
1243                maxrate = rate->value / 100000;
1244        }
1245
1246        for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
1247                sband = wdev->wiphy->bands[band];
1248                if (sband == NULL)
1249                        continue;
1250                for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
1251                        struct ieee80211_rate *srate = &sband->bitrates[ridx];
1252                        if (fixed == srate->bitrate) {
1253                                mask.control[band].legacy = 1 << ridx;
1254                                match = true;
1255                                break;
1256                        }
1257                        if (srate->bitrate <= maxrate) {
1258                                mask.control[band].legacy |= 1 << ridx;
1259                                match = true;
1260                        }
1261                }
1262        }
1263
1264        if (!match)
1265                return -EINVAL;
1266
1267        return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
1268}
1269
1270static int cfg80211_wext_giwrate(struct net_device *dev,
1271                                 struct iw_request_info *info,
1272                                 struct iw_param *rate, char *extra)
1273{
1274        struct wireless_dev *wdev = dev->ieee80211_ptr;
1275        struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1276        /* we are under RTNL - globally locked - so can use a static struct */
1277        static struct station_info sinfo;
1278        u8 addr[ETH_ALEN];
1279        int err;
1280
1281        if (wdev->iftype != NL80211_IFTYPE_STATION)
1282                return -EOPNOTSUPP;
1283
1284        if (!rdev->ops->get_station)
1285                return -EOPNOTSUPP;
1286
1287        err = 0;
1288        wdev_lock(wdev);
1289        if (wdev->current_bss)
1290                memcpy(addr, wdev->current_bss->pub.bssid, ETH_ALEN);
1291        else
1292                err = -EOPNOTSUPP;
1293        wdev_unlock(wdev);
1294        if (err)
1295                return err;
1296
1297        err = rdev_get_station(rdev, dev, addr, &sinfo);
1298        if (err)
1299                return err;
1300
1301        if (!(sinfo.filled & STATION_INFO_TX_BITRATE))
1302                return -EOPNOTSUPP;
1303
1304        rate->value = 100000 * cfg80211_calculate_bitrate(&sinfo.txrate);
1305
1306        return 0;
1307}
1308
1309/* Get wireless statistics.  Called by /proc/net/wireless and by SIOCGIWSTATS */
1310static struct iw_statistics *cfg80211_wireless_stats(struct net_device *dev)
1311{
1312        struct wireless_dev *wdev = dev->ieee80211_ptr;
1313        struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1314        /* we are under RTNL - globally locked - so can use static structs */
1315        static struct iw_statistics wstats;
1316        static struct station_info sinfo;
1317        u8 bssid[ETH_ALEN];
1318
1319        if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION)
1320                return NULL;
1321
1322        if (!rdev->ops->get_station)
1323                return NULL;
1324
1325        /* Grab BSSID of current BSS, if any */
1326        wdev_lock(wdev);
1327        if (!wdev->current_bss) {
1328                wdev_unlock(wdev);
1329                return NULL;
1330        }
1331        memcpy(bssid, wdev->current_bss->pub.bssid, ETH_ALEN);
1332        wdev_unlock(wdev);
1333
1334        if (rdev_get_station(rdev, dev, bssid, &sinfo))
1335                return NULL;
1336
1337        memset(&wstats, 0, sizeof(wstats));
1338
1339        switch (rdev->wiphy.signal_type) {
1340        case CFG80211_SIGNAL_TYPE_MBM:
1341                if (sinfo.filled & STATION_INFO_SIGNAL) {
1342                        int sig = sinfo.signal;
1343                        wstats.qual.updated |= IW_QUAL_LEVEL_UPDATED;
1344                        wstats.qual.updated |= IW_QUAL_QUAL_UPDATED;
1345                        wstats.qual.updated |= IW_QUAL_DBM;
1346                        wstats.qual.level = sig;
1347                        if (sig < -110)
1348                                sig = -110;
1349                        else if (sig > -40)
1350                                sig = -40;
1351                        wstats.qual.qual = sig + 110;
1352                        break;
1353                }
1354        case CFG80211_SIGNAL_TYPE_UNSPEC:
1355                if (sinfo.filled & STATION_INFO_SIGNAL) {
1356                        wstats.qual.updated |= IW_QUAL_LEVEL_UPDATED;
1357                        wstats.qual.updated |= IW_QUAL_QUAL_UPDATED;
1358                        wstats.qual.level = sinfo.signal;
1359                        wstats.qual.qual = sinfo.signal;
1360                        break;
1361                }
1362        default:
1363                wstats.qual.updated |= IW_QUAL_LEVEL_INVALID;
1364                wstats.qual.updated |= IW_QUAL_QUAL_INVALID;
1365        }
1366
1367        wstats.qual.updated |= IW_QUAL_NOISE_INVALID;
1368        if (sinfo.filled & STATION_INFO_RX_DROP_MISC)
1369                wstats.discard.misc = sinfo.rx_dropped_misc;
1370        if (sinfo.filled & STATION_INFO_TX_FAILED)
1371                wstats.discard.retries = sinfo.tx_failed;
1372
1373        return &wstats;
1374}
1375
1376static int cfg80211_wext_siwap(struct net_device *dev,
1377                               struct iw_request_info *info,
1378                               struct sockaddr *ap_addr, char *extra)
1379{
1380        struct wireless_dev *wdev = dev->ieee80211_ptr;
1381
1382        switch (wdev->iftype) {
1383        case NL80211_IFTYPE_ADHOC:
1384                return cfg80211_ibss_wext_siwap(dev, info, ap_addr, extra);
1385        case NL80211_IFTYPE_STATION:
1386                return cfg80211_mgd_wext_siwap(dev, info, ap_addr, extra);
1387        case NL80211_IFTYPE_WDS:
1388                return cfg80211_wds_wext_siwap(dev, info, ap_addr, extra);
1389        default:
1390                return -EOPNOTSUPP;
1391        }
1392}
1393
1394static int cfg80211_wext_giwap(struct net_device *dev,
1395                               struct iw_request_info *info,
1396                               struct sockaddr *ap_addr, char *extra)
1397{
1398        struct wireless_dev *wdev = dev->ieee80211_ptr;
1399
1400        switch (wdev->iftype) {
1401        case NL80211_IFTYPE_ADHOC:
1402                return cfg80211_ibss_wext_giwap(dev, info, ap_addr, extra);
1403        case NL80211_IFTYPE_STATION:
1404                return cfg80211_mgd_wext_giwap(dev, info, ap_addr, extra);
1405        case NL80211_IFTYPE_WDS:
1406                return cfg80211_wds_wext_giwap(dev, info, ap_addr, extra);
1407        default:
1408                return -EOPNOTSUPP;
1409        }
1410}
1411
1412static int cfg80211_wext_siwessid(struct net_device *dev,
1413                                  struct iw_request_info *info,
1414                                  struct iw_point *data, char *ssid)
1415{
1416        struct wireless_dev *wdev = dev->ieee80211_ptr;
1417
1418        switch (wdev->iftype) {
1419        case NL80211_IFTYPE_ADHOC:
1420                return cfg80211_ibss_wext_siwessid(dev, info, data, ssid);
1421        case NL80211_IFTYPE_STATION:
1422                return cfg80211_mgd_wext_siwessid(dev, info, data, ssid);
1423        default:
1424                return -EOPNOTSUPP;
1425        }
1426}
1427
1428static int cfg80211_wext_giwessid(struct net_device *dev,
1429                                  struct iw_request_info *info,
1430                                  struct iw_point *data, char *ssid)
1431{
1432        struct wireless_dev *wdev = dev->ieee80211_ptr;
1433
1434        data->flags = 0;
1435        data->length = 0;
1436
1437        switch (wdev->iftype) {
1438        case NL80211_IFTYPE_ADHOC:
1439                return cfg80211_ibss_wext_giwessid(dev, info, data, ssid);
1440        case NL80211_IFTYPE_STATION:
1441                return cfg80211_mgd_wext_giwessid(dev, info, data, ssid);
1442        default:
1443                return -EOPNOTSUPP;
1444        }
1445}
1446
1447static int cfg80211_wext_siwpmksa(struct net_device *dev,
1448                                  struct iw_request_info *info,
1449                                  struct iw_point *data, char *extra)
1450{
1451        struct wireless_dev *wdev = dev->ieee80211_ptr;
1452        struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1453        struct cfg80211_pmksa cfg_pmksa;
1454        struct iw_pmksa *pmksa = (struct iw_pmksa *)extra;
1455
1456        memset(&cfg_pmksa, 0, sizeof(struct cfg80211_pmksa));
1457
1458        if (wdev->iftype != NL80211_IFTYPE_STATION)
1459                return -EINVAL;
1460
1461        cfg_pmksa.bssid = pmksa->bssid.sa_data;
1462        cfg_pmksa.pmkid = pmksa->pmkid;
1463
1464        switch (pmksa->cmd) {
1465        case IW_PMKSA_ADD:
1466                if (!rdev->ops->set_pmksa)
1467                        return -EOPNOTSUPP;
1468
1469                return rdev_set_pmksa(rdev, dev, &cfg_pmksa);
1470
1471        case IW_PMKSA_REMOVE:
1472                if (!rdev->ops->del_pmksa)
1473                        return -EOPNOTSUPP;
1474
1475                return rdev_del_pmksa(rdev, dev, &cfg_pmksa);
1476
1477        case IW_PMKSA_FLUSH:
1478                if (!rdev->ops->flush_pmksa)
1479                        return -EOPNOTSUPP;
1480
1481                return rdev_flush_pmksa(rdev, dev);
1482
1483        default:
1484                return -EOPNOTSUPP;
1485        }
1486}
1487
1488static const iw_handler cfg80211_handlers[] = {
1489        [IW_IOCTL_IDX(SIOCGIWNAME)]     = (iw_handler) cfg80211_wext_giwname,
1490        [IW_IOCTL_IDX(SIOCSIWFREQ)]     = (iw_handler) cfg80211_wext_siwfreq,
1491        [IW_IOCTL_IDX(SIOCGIWFREQ)]     = (iw_handler) cfg80211_wext_giwfreq,
1492        [IW_IOCTL_IDX(SIOCSIWMODE)]     = (iw_handler) cfg80211_wext_siwmode,
1493        [IW_IOCTL_IDX(SIOCGIWMODE)]     = (iw_handler) cfg80211_wext_giwmode,
1494        [IW_IOCTL_IDX(SIOCGIWRANGE)]    = (iw_handler) cfg80211_wext_giwrange,
1495        [IW_IOCTL_IDX(SIOCSIWAP)]       = (iw_handler) cfg80211_wext_siwap,
1496        [IW_IOCTL_IDX(SIOCGIWAP)]       = (iw_handler) cfg80211_wext_giwap,
1497        [IW_IOCTL_IDX(SIOCSIWMLME)]     = (iw_handler) cfg80211_wext_siwmlme,
1498        [IW_IOCTL_IDX(SIOCSIWSCAN)]     = (iw_handler) cfg80211_wext_siwscan,
1499        [IW_IOCTL_IDX(SIOCGIWSCAN)]     = (iw_handler) cfg80211_wext_giwscan,
1500        [IW_IOCTL_IDX(SIOCSIWESSID)]    = (iw_handler) cfg80211_wext_siwessid,
1501        [IW_IOCTL_IDX(SIOCGIWESSID)]    = (iw_handler) cfg80211_wext_giwessid,
1502        [IW_IOCTL_IDX(SIOCSIWRATE)]     = (iw_handler) cfg80211_wext_siwrate,
1503        [IW_IOCTL_IDX(SIOCGIWRATE)]     = (iw_handler) cfg80211_wext_giwrate,
1504        [IW_IOCTL_IDX(SIOCSIWRTS)]      = (iw_handler) cfg80211_wext_siwrts,
1505        [IW_IOCTL_IDX(SIOCGIWRTS)]      = (iw_handler) cfg80211_wext_giwrts,
1506        [IW_IOCTL_IDX(SIOCSIWFRAG)]     = (iw_handler) cfg80211_wext_siwfrag,
1507        [IW_IOCTL_IDX(SIOCGIWFRAG)]     = (iw_handler) cfg80211_wext_giwfrag,
1508        [IW_IOCTL_IDX(SIOCSIWTXPOW)]    = (iw_handler) cfg80211_wext_siwtxpower,
1509        [IW_IOCTL_IDX(SIOCGIWTXPOW)]    = (iw_handler) cfg80211_wext_giwtxpower,
1510        [IW_IOCTL_IDX(SIOCSIWRETRY)]    = (iw_handler) cfg80211_wext_siwretry,
1511        [IW_IOCTL_IDX(SIOCGIWRETRY)]    = (iw_handler) cfg80211_wext_giwretry,
1512        [IW_IOCTL_IDX(SIOCSIWENCODE)]   = (iw_handler) cfg80211_wext_siwencode,
1513        [IW_IOCTL_IDX(SIOCGIWENCODE)]   = (iw_handler) cfg80211_wext_giwencode,
1514        [IW_IOCTL_IDX(SIOCSIWPOWER)]    = (iw_handler) cfg80211_wext_siwpower,
1515        [IW_IOCTL_IDX(SIOCGIWPOWER)]    = (iw_handler) cfg80211_wext_giwpower,
1516        [IW_IOCTL_IDX(SIOCSIWGENIE)]    = (iw_handler) cfg80211_wext_siwgenie,
1517        [IW_IOCTL_IDX(SIOCSIWAUTH)]     = (iw_handler) cfg80211_wext_siwauth,
1518        [IW_IOCTL_IDX(SIOCGIWAUTH)]     = (iw_handler) cfg80211_wext_giwauth,
1519        [IW_IOCTL_IDX(SIOCSIWENCODEEXT)]= (iw_handler) cfg80211_wext_siwencodeext,
1520        [IW_IOCTL_IDX(SIOCSIWPMKSA)]    = (iw_handler) cfg80211_wext_siwpmksa,
1521};
1522
1523const struct iw_handler_def cfg80211_wext_handler = {
1524        .num_standard           = ARRAY_SIZE(cfg80211_handlers),
1525        .standard               = cfg80211_handlers,
1526        .get_wireless_stats = cfg80211_wireless_stats,
1527};
1528