git.oblomov.eu Git - linux-2.6/blob - net/mac80211/ieee80211_ioctl.c

   1 /*
   2  * Copyright 2002-2005, Instant802 Networks, Inc.
   3  * Copyright 2005-2006, Devicescape Software, Inc.
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License version 2 as
   7  * published by the Free Software Foundation.
   8  */
   9
  10 #include <linux/module.h>
  11 #include <linux/init.h>
  12 #include <linux/netdevice.h>
  13 #include <linux/types.h>
  14 #include <linux/slab.h>
  15 #include <linux/skbuff.h>
  16 #include <linux/etherdevice.h>
  17 #include <linux/if_arp.h>
  18 #include <linux/wireless.h>
  19 #include <net/iw_handler.h>
  20 #include <asm/uaccess.h>
  21
  22 #include <net/mac80211.h>
  23 #include "ieee80211_i.h"
  24 #include "hostapd_ioctl.h"
  25 #include "ieee80211_rate.h"
  26 #include "wpa.h"
  27 #include "aes_ccm.h"
  28 #include "debugfs_key.h"
  29
  30 static void ieee80211_set_hw_encryption(struct net_device *dev,
  31                                         struct sta_info *sta, u8 addr[ETH_ALEN],
  32                                         struct ieee80211_key *key)
  33 {
  34         struct ieee80211_key_conf *keyconf = NULL;
  35         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
  36
  37         /* default to sw encryption; this will be cleared by low-level
  38          * driver if the hw supports requested encryption */
  39         if (key)
  40                 key->force_sw_encrypt = 1;
  41
  42         if (key && local->ops->set_key &&
  43             (keyconf = ieee80211_key_data2conf(local, key))) {
  44                 if (local->ops->set_key(local_to_hw(local), SET_KEY, addr,
  45                                        keyconf, sta ? sta->aid : 0)) {
  46                         key->force_sw_encrypt = 1;
  47                         key->hw_key_idx = HW_KEY_IDX_INVALID;
  48                 } else {
  49                         key->force_sw_encrypt =
  50                                 !!(keyconf->flags & IEEE80211_KEY_FORCE_SW_ENCRYPT);
  51                         key->hw_key_idx =
  52                                 keyconf->hw_key_idx;
  53
  54                 }
  55         }
  56         kfree(keyconf);
  57 }
  58
  59
  60 static int ieee80211_set_encryption(struct net_device *dev, u8 *sta_addr,
  61                                     int idx, int alg, int set_tx_key,
  62                                     const u8 *_key, size_t key_len)
  63 {
  64         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
  65         int ret = 0;
  66         struct sta_info *sta;
  67         struct ieee80211_key *key, *old_key;
  68         int try_hwaccel = 1;
  69         struct ieee80211_key_conf *keyconf;
  70         struct ieee80211_sub_if_data *sdata;
  71
  72         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
  73
  74         if (is_broadcast_ether_addr(sta_addr)) {
  75                 sta = NULL;
  76                 if (idx >= NUM_DEFAULT_KEYS) {
  77                         printk(KERN_DEBUG "%s: set_encrypt - invalid idx=%d\n",
  78                                dev->name, idx);
  79                         return -EINVAL;
  80                 }
  81                 key = sdata->keys[idx];
  82
  83                 /* TODO: consider adding hwaccel support for these; at least
  84                  * Atheros key cache should be able to handle this since AP is
  85                  * only transmitting frames with default keys. */
  86                 /* FIX: hw key cache can be used when only one virtual
  87                  * STA is associated with each AP. If more than one STA
  88                  * is associated to the same AP, software encryption
  89                  * must be used. This should be done automatically
  90                  * based on configured station devices. For the time
  91                  * being, this can be only set at compile time. */
  92         } else {
  93                 set_tx_key = 0;
  94                 if (idx != 0) {
  95                         printk(KERN_DEBUG "%s: set_encrypt - non-zero idx for "
  96                                "individual key\n", dev->name);
  97                         return -EINVAL;
  98                 }
  99
 100                 sta = sta_info_get(local, sta_addr);
 101                 if (!sta) {
 102 #ifdef CONFIG_MAC80211_VERBOSE_DEBUG
 103                         printk(KERN_DEBUG "%s: set_encrypt - unknown addr "
 104                                MAC_FMT "\n",
 105                                dev->name, MAC_ARG(sta_addr));
 106 #endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
 107
 108                         return -ENOENT;
 109                 }
 110
 111                 key = sta->key;
 112         }
 113
 114         /* FIX:
 115          * Cannot configure default hwaccel keys with WEP algorithm, if
 116          * any of the virtual interfaces is using static WEP
 117          * configuration because hwaccel would otherwise try to decrypt
 118          * these frames.
 119          *
 120          * For now, just disable WEP hwaccel for broadcast when there is
 121          * possibility of conflict with default keys. This can maybe later be
 122          * optimized by using non-default keys (at least with Atheros ar521x).
 123          */
 124         if (!sta && alg == ALG_WEP && !local->default_wep_only &&
 125             sdata->type != IEEE80211_IF_TYPE_IBSS &&
 126             sdata->type != IEEE80211_IF_TYPE_AP) {
 127                 try_hwaccel = 0;
 128         }
 129
 130         if (local->hw.flags & IEEE80211_HW_DEVICE_HIDES_WEP) {
 131                 /* Software encryption cannot be used with devices that hide
 132                  * encryption from the host system, so always try to use
 133                  * hardware acceleration with such devices. */
 134                 try_hwaccel = 1;
 135         }
 136
 137         if ((local->hw.flags & IEEE80211_HW_NO_TKIP_WMM_HWACCEL) &&
 138             alg == ALG_TKIP) {
 139                 if (sta && (sta->flags & WLAN_STA_WME)) {
 140                 /* Hardware does not support hwaccel with TKIP when using WMM.
 141                  */
 142                         try_hwaccel = 0;
 143                 }
 144                 else if (sdata->type == IEEE80211_IF_TYPE_STA) {
 145                         sta = sta_info_get(local, sdata->u.sta.bssid);
 146                         if (sta) {
 147                                 if (sta->flags & WLAN_STA_WME) {
 148                                         try_hwaccel = 0;
 149                                 }
 150                                 sta_info_put(sta);
 151                                 sta = NULL;
 152                         }
 153                 }
 154         }
 155
 156         if (alg == ALG_NONE) {
 157                 keyconf = NULL;
 158                 if (try_hwaccel && key &&
 159                     key->hw_key_idx != HW_KEY_IDX_INVALID &&
 160                     local->ops->set_key &&
 161                     (keyconf = ieee80211_key_data2conf(local, key)) != NULL &&
 162                     local->ops->set_key(local_to_hw(local), DISABLE_KEY,
 163                                        sta_addr, keyconf, sta ? sta->aid : 0)) {
 164                         printk(KERN_DEBUG "%s: set_encrypt - low-level disable"
 165                                " failed\n", dev->name);
 166                         ret = -EINVAL;
 167                 }
 168                 kfree(keyconf);
 169
 170                 if (set_tx_key || sdata->default_key == key) {
 171                         ieee80211_debugfs_key_remove_default(sdata);
 172                         sdata->default_key = NULL;
 173                 }
 174                 ieee80211_debugfs_key_remove(key);
 175                 if (sta)
 176                         sta->key = NULL;
 177                 else
 178                         sdata->keys[idx] = NULL;
 179                 ieee80211_key_free(key);
 180                 key = NULL;
 181         } else {
 182                 old_key = key;
 183                 key = ieee80211_key_alloc(sta ? NULL : sdata, idx, key_len,
 184                                           GFP_KERNEL);
 185                 if (!key) {
 186                         ret = -ENOMEM;
 187                         goto err_out;
 188                 }
 189
 190                 /* default to sw encryption; low-level driver sets these if the
 191                  * requested encryption is supported */
 192                 key->hw_key_idx = HW_KEY_IDX_INVALID;
 193                 key->force_sw_encrypt = 1;
 194
 195                 key->alg = alg;
 196                 key->keyidx = idx;
 197                 key->keylen = key_len;
 198                 memcpy(key->key, _key, key_len);
 199                 if (set_tx_key)
 200                         key->default_tx_key = 1;
 201
 202                 if (alg == ALG_CCMP) {
 203                         /* Initialize AES key state here as an optimization
 204                          * so that it does not need to be initialized for every
 205                          * packet. */
 206                         key->u.ccmp.tfm = ieee80211_aes_key_setup_encrypt(
 207                                 key->key);
 208                         if (!key->u.ccmp.tfm) {
 209                                 ret = -ENOMEM;
 210                                 goto err_free;
 211                         }
 212                 }
 213
 214                 if (set_tx_key || sdata->default_key == old_key) {
 215                         ieee80211_debugfs_key_remove_default(sdata);
 216                         sdata->default_key = NULL;
 217                 }
 218                 ieee80211_debugfs_key_remove(old_key);
 219                 if (sta)
 220                         sta->key = key;
 221                 else
 222                         sdata->keys[idx] = key;
 223                 ieee80211_key_free(old_key);
 224                 ieee80211_debugfs_key_add(local, key);
 225                 if (sta)
 226                         ieee80211_debugfs_key_sta_link(key, sta);
 227
 228                 if (try_hwaccel &&
 229                     (alg == ALG_WEP || alg == ALG_TKIP || alg == ALG_CCMP))
 230                         ieee80211_set_hw_encryption(dev, sta, sta_addr, key);
 231         }
 232
 233         if (set_tx_key || (!sta && !sdata->default_key && key)) {
 234                 sdata->default_key = key;
 235                 if (key)
 236                         ieee80211_debugfs_key_add_default(sdata);
 237
 238                 if (local->ops->set_key_idx &&
 239                     local->ops->set_key_idx(local_to_hw(local), idx))
 240                         printk(KERN_DEBUG "%s: failed to set TX key idx for "
 241                                "low-level driver\n", dev->name);
 242         }
 243
 244         if (sta)
 245                 sta_info_put(sta);
 246
 247         return 0;
 248
 249 err_free:
 250         ieee80211_key_free(key);
 251 err_out:
 252         if (sta)
 253                 sta_info_put(sta);
 254         return ret;
 255 }
 256
 257 static int ieee80211_ioctl_siwgenie(struct net_device *dev,
 258                                     struct iw_request_info *info,
 259                                     struct iw_point *data, char *extra)
 260 {
 261         struct ieee80211_sub_if_data *sdata;
 262         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 263
 264         if (local->user_space_mlme)
 265                 return -EOPNOTSUPP;
 266
 267         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 268         if (sdata->type == IEEE80211_IF_TYPE_STA ||
 269             sdata->type == IEEE80211_IF_TYPE_IBSS) {
 270                 int ret = ieee80211_sta_set_extra_ie(dev, extra, data->length);
 271                 if (ret)
 272                         return ret;
 273                 sdata->u.sta.auto_bssid_sel = 0;
 274                 ieee80211_sta_req_auth(dev, &sdata->u.sta);
 275                 return 0;
 276         }
 277
 278         if (sdata->type == IEEE80211_IF_TYPE_AP) {
 279                 kfree(sdata->u.ap.generic_elem);
 280                 sdata->u.ap.generic_elem = kmalloc(data->length, GFP_KERNEL);
 281                 if (!sdata->u.ap.generic_elem)
 282                         return -ENOMEM;
 283                 memcpy(sdata->u.ap.generic_elem, extra, data->length);
 284                 sdata->u.ap.generic_elem_len = data->length;
 285                 return ieee80211_if_config(dev);
 286         }
 287         return -EOPNOTSUPP;
 288 }
 289
 290 static int ieee80211_ioctl_set_radio_enabled(struct net_device *dev,
 291                                              int val)
 292 {
 293         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 294         struct ieee80211_conf *conf = &local->hw.conf;
 295
 296         conf->radio_enabled = val;
 297         return ieee80211_hw_config(wdev_priv(dev->ieee80211_ptr));
 298 }
 299
 300 static int ieee80211_ioctl_giwname(struct net_device *dev,
 301                                    struct iw_request_info *info,
 302                                    char *name, char *extra)
 303 {
 304         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 305
 306         switch (local->hw.conf.phymode) {
 307         case MODE_IEEE80211A:
 308                 strcpy(name, "IEEE 802.11a");
 309                 break;
 310         case MODE_IEEE80211B:
 311                 strcpy(name, "IEEE 802.11b");
 312                 break;
 313         case MODE_IEEE80211G:
 314                 strcpy(name, "IEEE 802.11g");
 315                 break;
 316         case MODE_ATHEROS_TURBO:
 317                 strcpy(name, "5GHz Turbo");
 318                 break;
 319         default:
 320                 strcpy(name, "IEEE 802.11");
 321                 break;
 322         }
 323
 324         return 0;
 325 }
 326
 327
 328 static int ieee80211_ioctl_giwrange(struct net_device *dev,
 329                                  struct iw_request_info *info,
 330                                  struct iw_point *data, char *extra)
 331 {
 332         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 333         struct iw_range *range = (struct iw_range *) extra;
 334         struct ieee80211_hw_mode *mode = NULL;
 335         int c = 0;
 336
 337         data->length = sizeof(struct iw_range);
 338         memset(range, 0, sizeof(struct iw_range));
 339
 340         range->we_version_compiled = WIRELESS_EXT;
 341         range->we_version_source = 21;
 342         range->retry_capa = IW_RETRY_LIMIT;
 343         range->retry_flags = IW_RETRY_LIMIT;
 344         range->min_retry = 0;
 345         range->max_retry = 255;
 346         range->min_rts = 0;
 347         range->max_rts = 2347;
 348         range->min_frag = 256;
 349         range->max_frag = 2346;
 350
 351         range->encoding_size[0] = 5;
 352         range->encoding_size[1] = 13;
 353         range->num_encoding_sizes = 2;
 354         range->max_encoding_tokens = NUM_DEFAULT_KEYS;
 355
 356         range->max_qual.qual = local->hw.max_signal;
 357         range->max_qual.level = local->hw.max_rssi;
 358         range->max_qual.noise = local->hw.max_noise;
 359         range->max_qual.updated = local->wstats_flags;
 360
 361         range->avg_qual.qual = local->hw.max_signal/2;
 362         range->avg_qual.level = 0;
 363         range->avg_qual.noise = 0;
 364         range->avg_qual.updated = local->wstats_flags;
 365
 366         range->enc_capa = IW_ENC_CAPA_WPA | IW_ENC_CAPA_WPA2 |
 367                           IW_ENC_CAPA_CIPHER_TKIP | IW_ENC_CAPA_CIPHER_CCMP;
 368
 369         list_for_each_entry(mode, &local->modes_list, list) {
 370                 int i = 0;
 371
 372                 if (!(local->enabled_modes & (1 << mode->mode)) ||
 373                     (local->hw_modes & local->enabled_modes &
 374                      (1 << MODE_IEEE80211G) && mode->mode == MODE_IEEE80211B))
 375                         continue;
 376
 377                 while (i < mode->num_channels && c < IW_MAX_FREQUENCIES) {
 378                         struct ieee80211_channel *chan = &mode->channels[i];
 379
 380                         if (chan->flag & IEEE80211_CHAN_W_SCAN) {
 381                                 range->freq[c].i = chan->chan;
 382                                 range->freq[c].m = chan->freq * 100000;
 383                                 range->freq[c].e = 1;
 384                                 c++;
 385                         }
 386                         i++;
 387                 }
 388         }
 389         range->num_channels = c;
 390         range->num_frequency = c;
 391
 392         IW_EVENT_CAPA_SET_KERNEL(range->event_capa);
 393         IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWTHRSPY);
 394         IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWAP);
 395         IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWSCAN);
 396
 397         return 0;
 398 }
 399
 400
 401 static int ieee80211_ioctl_siwmode(struct net_device *dev,
 402                                    struct iw_request_info *info,
 403                                    __u32 *mode, char *extra)
 404 {
 405         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 406         int type;
 407
 408         if (sdata->type == IEEE80211_IF_TYPE_VLAN)
 409                 return -EOPNOTSUPP;
 410
 411         switch (*mode) {
 412         case IW_MODE_INFRA:
 413                 type = IEEE80211_IF_TYPE_STA;
 414                 break;
 415         case IW_MODE_ADHOC:
 416                 type = IEEE80211_IF_TYPE_IBSS;
 417                 break;
 418         case IW_MODE_MONITOR:
 419                 type = IEEE80211_IF_TYPE_MNTR;
 420                 break;
 421         default:
 422                 return -EINVAL;
 423         }
 424
 425         if (type == sdata->type)
 426                 return 0;
 427         if (netif_running(dev))
 428                 return -EBUSY;
 429
 430         ieee80211_if_reinit(dev);
 431         ieee80211_if_set_type(dev, type);
 432
 433         return 0;
 434 }
 435
 436
 437 static int ieee80211_ioctl_giwmode(struct net_device *dev,
 438                                    struct iw_request_info *info,
 439                                    __u32 *mode, char *extra)
 440 {
 441         struct ieee80211_sub_if_data *sdata;
 442
 443         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 444         switch (sdata->type) {
 445         case IEEE80211_IF_TYPE_AP:
 446                 *mode = IW_MODE_MASTER;
 447                 break;
 448         case IEEE80211_IF_TYPE_STA:
 449                 *mode = IW_MODE_INFRA;
 450                 break;
 451         case IEEE80211_IF_TYPE_IBSS:
 452                 *mode = IW_MODE_ADHOC;
 453                 break;
 454         case IEEE80211_IF_TYPE_MNTR:
 455                 *mode = IW_MODE_MONITOR;
 456                 break;
 457         case IEEE80211_IF_TYPE_WDS:
 458                 *mode = IW_MODE_REPEAT;
 459                 break;
 460         case IEEE80211_IF_TYPE_VLAN:
 461                 *mode = IW_MODE_SECOND;         /* FIXME */
 462                 break;
 463         default:
 464                 *mode = IW_MODE_AUTO;
 465                 break;
 466         }
 467         return 0;
 468 }
 469
 470 int ieee80211_set_channel(struct ieee80211_local *local, int channel, int freq)
 471 {
 472         struct ieee80211_hw_mode *mode;
 473         int c, set = 0;
 474         int ret = -EINVAL;
 475
 476         list_for_each_entry(mode, &local->modes_list, list) {
 477                 if (!(local->enabled_modes & (1 << mode->mode)))
 478                         continue;
 479                 for (c = 0; c < mode->num_channels; c++) {
 480                         struct ieee80211_channel *chan = &mode->channels[c];
 481                         if (chan->flag & IEEE80211_CHAN_W_SCAN &&
 482                             ((chan->chan == channel) || (chan->freq == freq))) {
 483                                 /* Use next_mode as the mode preference to
 484                                  * resolve non-unique channel numbers. */
 485                                 if (set && mode->mode != local->next_mode)
 486                                         continue;
 487
 488                                 local->oper_channel = chan;
 489                                 local->oper_hw_mode = mode;
 490                                 set++;
 491                         }
 492                 }
 493         }
 494
 495         if (set) {
 496                 if (local->sta_scanning)
 497                         ret = 0;
 498                 else
 499                         ret = ieee80211_hw_config(local);
 500
 501                 rate_control_clear(local);
 502         }
 503
 504         return ret;
 505 }
 506
 507 static int ieee80211_ioctl_siwfreq(struct net_device *dev,
 508                                    struct iw_request_info *info,
 509                                    struct iw_freq *freq, char *extra)
 510 {
 511         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 512         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 513
 514         if (sdata->type == IEEE80211_IF_TYPE_STA)
 515                 sdata->u.sta.auto_channel_sel = 0;
 516
 517         /* freq->e == 0: freq->m = channel; otherwise freq = m * 10^e */
 518         if (freq->e == 0) {
 519                 if (freq->m < 0) {
 520                         if (sdata->type == IEEE80211_IF_TYPE_STA)
 521                                 sdata->u.sta.auto_channel_sel = 1;
 522                         return 0;
 523                 } else
 524                         return ieee80211_set_channel(local, freq->m, -1);
 525         } else {
 526                 int i, div = 1000000;
 527                 for (i = 0; i < freq->e; i++)
 528                         div /= 10;
 529                 if (div > 0)
 530                         return ieee80211_set_channel(local, -1, freq->m / div);
 531                 else
 532                         return -EINVAL;
 533         }
 534 }
 535
 536
 537 static int ieee80211_ioctl_giwfreq(struct net_device *dev,
 538                                    struct iw_request_info *info,
 539                                    struct iw_freq *freq, char *extra)
 540 {
 541         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 542
 543         /* TODO: in station mode (Managed/Ad-hoc) might need to poll low-level
 544          * driver for the current channel with firmware-based management */
 545
 546         freq->m = local->hw.conf.freq;
 547         freq->e = 6;
 548
 549         return 0;
 550 }
 551
 552
 553 static int ieee80211_ioctl_siwessid(struct net_device *dev,
 554                                     struct iw_request_info *info,
 555                                     struct iw_point *data, char *ssid)
 556 {
 557         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 558         struct ieee80211_sub_if_data *sdata;
 559         size_t len = data->length;
 560
 561         /* iwconfig uses nul termination in SSID.. */
 562         if (len > 0 && ssid[len - 1] == '\0')
 563                 len--;
 564
 565         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 566         if (sdata->type == IEEE80211_IF_TYPE_STA ||
 567             sdata->type == IEEE80211_IF_TYPE_IBSS) {
 568                 int ret;
 569                 if (local->user_space_mlme) {
 570                         if (len > IEEE80211_MAX_SSID_LEN)
 571                                 return -EINVAL;
 572                         memcpy(sdata->u.sta.ssid, ssid, len);
 573                         sdata->u.sta.ssid_len = len;
 574                         return 0;
 575                 }
 576                 sdata->u.sta.auto_ssid_sel = !data->flags;
 577                 ret = ieee80211_sta_set_ssid(dev, ssid, len);
 578                 if (ret)
 579                         return ret;
 580                 ieee80211_sta_req_auth(dev, &sdata->u.sta);
 581                 return 0;
 582         }
 583
 584         if (sdata->type == IEEE80211_IF_TYPE_AP) {
 585                 memcpy(sdata->u.ap.ssid, ssid, len);
 586                 memset(sdata->u.ap.ssid + len, 0,
 587                        IEEE80211_MAX_SSID_LEN - len);
 588                 sdata->u.ap.ssid_len = len;
 589                 return ieee80211_if_config(dev);
 590         }
 591         return -EOPNOTSUPP;
 592 }
 593
 594
 595 static int ieee80211_ioctl_giwessid(struct net_device *dev,
 596                                     struct iw_request_info *info,
 597                                     struct iw_point *data, char *ssid)
 598 {
 599         size_t len;
 600
 601         struct ieee80211_sub_if_data *sdata;
 602         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 603         if (sdata->type == IEEE80211_IF_TYPE_STA ||
 604             sdata->type == IEEE80211_IF_TYPE_IBSS) {
 605                 int res = ieee80211_sta_get_ssid(dev, ssid, &len);
 606                 if (res == 0) {
 607                         data->length = len;
 608                         data->flags = 1;
 609                 } else
 610                         data->flags = 0;
 611                 return res;
 612         }
 613
 614         if (sdata->type == IEEE80211_IF_TYPE_AP) {
 615                 len = sdata->u.ap.ssid_len;
 616                 if (len > IW_ESSID_MAX_SIZE)
 617                         len = IW_ESSID_MAX_SIZE;
 618                 memcpy(ssid, sdata->u.ap.ssid, len);
 619                 data->length = len;
 620                 data->flags = 1;
 621                 return 0;
 622         }
 623         return -EOPNOTSUPP;
 624 }
 625
 626
 627 static int ieee80211_ioctl_siwap(struct net_device *dev,
 628                                  struct iw_request_info *info,
 629                                  struct sockaddr *ap_addr, char *extra)
 630 {
 631         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 632         struct ieee80211_sub_if_data *sdata;
 633
 634         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 635         if (sdata->type == IEEE80211_IF_TYPE_STA ||
 636             sdata->type == IEEE80211_IF_TYPE_IBSS) {
 637                 int ret;
 638                 if (local->user_space_mlme) {
 639                         memcpy(sdata->u.sta.bssid, (u8 *) &ap_addr->sa_data,
 640                                ETH_ALEN);
 641                         return 0;
 642                 }
 643                 if (is_zero_ether_addr((u8 *) &ap_addr->sa_data)) {
 644                         sdata->u.sta.auto_bssid_sel = 1;
 645                         sdata->u.sta.auto_channel_sel = 1;
 646                 } else if (is_broadcast_ether_addr((u8 *) &ap_addr->sa_data))
 647                         sdata->u.sta.auto_bssid_sel = 1;
 648                 else
 649                         sdata->u.sta.auto_bssid_sel = 0;
 650                 ret = ieee80211_sta_set_bssid(dev, (u8 *) &ap_addr->sa_data);
 651                 if (ret)
 652                         return ret;
 653                 ieee80211_sta_req_auth(dev, &sdata->u.sta);
 654                 return 0;
 655         } else if (sdata->type == IEEE80211_IF_TYPE_WDS) {
 656                 if (memcmp(sdata->u.wds.remote_addr, (u8 *) &ap_addr->sa_data,
 657                            ETH_ALEN) == 0)
 658                         return 0;
 659                 return ieee80211_if_update_wds(dev, (u8 *) &ap_addr->sa_data);
 660         }
 661
 662         return -EOPNOTSUPP;
 663 }
 664
 665
 666 static int ieee80211_ioctl_giwap(struct net_device *dev,
 667                                  struct iw_request_info *info,
 668                                  struct sockaddr *ap_addr, char *extra)
 669 {
 670         struct ieee80211_sub_if_data *sdata;
 671
 672         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 673         if (sdata->type == IEEE80211_IF_TYPE_STA ||
 674             sdata->type == IEEE80211_IF_TYPE_IBSS) {
 675                 ap_addr->sa_family = ARPHRD_ETHER;
 676                 memcpy(&ap_addr->sa_data, sdata->u.sta.bssid, ETH_ALEN);
 677                 return 0;
 678         } else if (sdata->type == IEEE80211_IF_TYPE_WDS) {
 679                 ap_addr->sa_family = ARPHRD_ETHER;
 680                 memcpy(&ap_addr->sa_data, sdata->u.wds.remote_addr, ETH_ALEN);
 681                 return 0;
 682         }
 683
 684         return -EOPNOTSUPP;
 685 }
 686
 687
 688 static int ieee80211_ioctl_siwscan(struct net_device *dev,
 689                                    struct iw_request_info *info,
 690                                    struct iw_point *data, char *extra)
 691 {
 692         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 693         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 694         u8 *ssid = NULL;
 695         size_t ssid_len = 0;
 696
 697         if (!netif_running(dev))
 698                 return -ENETDOWN;
 699
 700         switch (sdata->type) {
 701         case IEEE80211_IF_TYPE_STA:
 702         case IEEE80211_IF_TYPE_IBSS:
 703                 if (local->scan_flags & IEEE80211_SCAN_MATCH_SSID) {
 704                         ssid = sdata->u.sta.ssid;
 705                         ssid_len = sdata->u.sta.ssid_len;
 706                 }
 707                 break;
 708         case IEEE80211_IF_TYPE_AP:
 709                 if (local->scan_flags & IEEE80211_SCAN_MATCH_SSID) {
 710                         ssid = sdata->u.ap.ssid;
 711                         ssid_len = sdata->u.ap.ssid_len;
 712                 }
 713                 break;
 714         default:
 715                 return -EOPNOTSUPP;
 716         }
 717
 718         return ieee80211_sta_req_scan(dev, ssid, ssid_len);
 719 }
 720
 721
 722 static int ieee80211_ioctl_giwscan(struct net_device *dev,
 723                                    struct iw_request_info *info,
 724                                    struct iw_point *data, char *extra)
 725 {
 726         int res;
 727         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 728         if (local->sta_scanning)
 729                 return -EAGAIN;
 730         res = ieee80211_sta_scan_results(dev, extra, data->length);
 731         if (res >= 0) {
 732                 data->length = res;
 733                 return 0;
 734         }
 735         data->length = 0;
 736         return res;
 737 }
 738
 739
 740 static int ieee80211_ioctl_siwrate(struct net_device *dev,
 741                                   struct iw_request_info *info,
 742                                   struct iw_param *rate, char *extra)
 743 {
 744         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 745         struct ieee80211_hw_mode *mode;
 746         int i;
 747         u32 target_rate = rate->value / 100000;
 748         struct ieee80211_sub_if_data *sdata;
 749
 750         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 751         if (!sdata->bss)
 752                 return -ENODEV;
 753         mode = local->oper_hw_mode;
 754         /* target_rate = -1, rate->fixed = 0 means auto only, so use all rates
 755          * target_rate = X, rate->fixed = 1 means only rate X
 756          * target_rate = X, rate->fixed = 0 means all rates <= X */
 757         sdata->bss->max_ratectrl_rateidx = -1;
 758         sdata->bss->force_unicast_rateidx = -1;
 759         if (rate->value < 0)
 760                 return 0;
 761         for (i=0; i< mode->num_rates; i++) {
 762                 struct ieee80211_rate *rates = &mode->rates[i];
 763                 int this_rate = rates->rate;
 764
 765                 if (mode->mode == MODE_ATHEROS_TURBO ||
 766                     mode->mode == MODE_ATHEROS_TURBOG)
 767                         this_rate *= 2;
 768                 if (target_rate == this_rate) {
 769                         sdata->bss->max_ratectrl_rateidx = i;
 770                         if (rate->fixed)
 771                                 sdata->bss->force_unicast_rateidx = i;
 772                         break;
 773                 }
 774         }
 775         return 0;
 776 }
 777
 778 static int ieee80211_ioctl_giwrate(struct net_device *dev,
 779                                   struct iw_request_info *info,
 780                                   struct iw_param *rate, char *extra)
 781 {
 782         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 783         struct sta_info *sta;
 784         struct ieee80211_sub_if_data *sdata;
 785
 786         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 787         if (sdata->type == IEEE80211_IF_TYPE_STA)
 788                 sta = sta_info_get(local, sdata->u.sta.bssid);
 789         else
 790                 return -EOPNOTSUPP;
 791         if (!sta)
 792                 return -ENODEV;
 793         if (sta->txrate < local->oper_hw_mode->num_rates)
 794                 rate->value = local->oper_hw_mode->rates[sta->txrate].rate * 100000;
 795         else
 796                 rate->value = 0;
 797         sta_info_put(sta);
 798         return 0;
 799 }
 800
 801 static int ieee80211_ioctl_siwrts(struct net_device *dev,
 802                                   struct iw_request_info *info,
 803                                   struct iw_param *rts, char *extra)
 804 {
 805         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 806
 807         if (rts->disabled)
 808                 local->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
 809         else if (rts->value < 0 || rts->value > IEEE80211_MAX_RTS_THRESHOLD)
 810                 return -EINVAL;
 811         else
 812                 local->rts_threshold = rts->value;
 813
 814         /* If the wlan card performs RTS/CTS in hardware/firmware,
 815          * configure it here */
 816
 817         if (local->ops->set_rts_threshold)
 818                 local->ops->set_rts_threshold(local_to_hw(local),
 819                                              local->rts_threshold);
 820
 821         return 0;
 822 }
 823
 824 static int ieee80211_ioctl_giwrts(struct net_device *dev,
 825                                   struct iw_request_info *info,
 826                                   struct iw_param *rts, char *extra)
 827 {
 828         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 829
 830         rts->value = local->rts_threshold;
 831         rts->disabled = (rts->value >= IEEE80211_MAX_RTS_THRESHOLD);
 832         rts->fixed = 1;
 833
 834         return 0;
 835 }
 836
 837
 838 static int ieee80211_ioctl_siwfrag(struct net_device *dev,
 839                                    struct iw_request_info *info,
 840                                    struct iw_param *frag, char *extra)
 841 {
 842         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 843
 844         if (frag->disabled)
 845                 local->fragmentation_threshold = IEEE80211_MAX_FRAG_THRESHOLD;
 846         else if (frag->value < 256 ||
 847                  frag->value > IEEE80211_MAX_FRAG_THRESHOLD)
 848                 return -EINVAL;
 849         else {
 850                 /* Fragment length must be even, so strip LSB. */
 851                 local->fragmentation_threshold = frag->value & ~0x1;
 852         }
 853
 854         /* If the wlan card performs fragmentation in hardware/firmware,
 855          * configure it here */
 856
 857         if (local->ops->set_frag_threshold)
 858                 local->ops->set_frag_threshold(
 859                         local_to_hw(local),
 860                         local->fragmentation_threshold);
 861
 862         return 0;
 863 }
 864
 865 static int ieee80211_ioctl_giwfrag(struct net_device *dev,
 866                                    struct iw_request_info *info,
 867                                    struct iw_param *frag, char *extra)
 868 {
 869         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 870
 871         frag->value = local->fragmentation_threshold;
 872         frag->disabled = (frag->value >= IEEE80211_MAX_RTS_THRESHOLD);
 873         frag->fixed = 1;
 874
 875         return 0;
 876 }
 877
 878
 879 static int ieee80211_ioctl_siwretry(struct net_device *dev,
 880                                     struct iw_request_info *info,
 881                                     struct iw_param *retry, char *extra)
 882 {
 883         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 884
 885         if (retry->disabled ||
 886             (retry->flags & IW_RETRY_TYPE) != IW_RETRY_LIMIT)
 887                 return -EINVAL;
 888
 889         if (retry->flags & IW_RETRY_MAX)
 890                 local->long_retry_limit = retry->value;
 891         else if (retry->flags & IW_RETRY_MIN)
 892                 local->short_retry_limit = retry->value;
 893         else {
 894                 local->long_retry_limit = retry->value;
 895                 local->short_retry_limit = retry->value;
 896         }
 897
 898         if (local->ops->set_retry_limit) {
 899                 return local->ops->set_retry_limit(
 900                         local_to_hw(local),
 901                         local->short_retry_limit,
 902                         local->long_retry_limit);
 903         }
 904
 905         return 0;
 906 }
 907
 908
 909 static int ieee80211_ioctl_giwretry(struct net_device *dev,
 910                                     struct iw_request_info *info,
 911                                     struct iw_param *retry, char *extra)
 912 {
 913         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 914
 915         retry->disabled = 0;
 916         if (retry->flags == 0 || retry->flags & IW_RETRY_MIN) {
 917                 /* first return min value, iwconfig will ask max value
 918                  * later if needed */
 919                 retry->flags |= IW_RETRY_LIMIT;
 920                 retry->value = local->short_retry_limit;
 921                 if (local->long_retry_limit != local->short_retry_limit)
 922                         retry->flags |= IW_RETRY_MIN;
 923                 return 0;
 924         }
 925         if (retry->flags & IW_RETRY_MAX) {
 926                 retry->flags = IW_RETRY_LIMIT | IW_RETRY_MAX;
 927                 retry->value = local->long_retry_limit;
 928         }
 929
 930         return 0;
 931 }
 932
 933 static void ieee80211_key_enable_hwaccel(struct ieee80211_local *local,
 934                                          struct ieee80211_key *key)
 935 {
 936         struct ieee80211_key_conf *keyconf;
 937         u8 addr[ETH_ALEN];
 938
 939         if (!key || key->alg != ALG_WEP || !key->force_sw_encrypt ||
 940             (local->hw.flags & IEEE80211_HW_DEVICE_HIDES_WEP))
 941                 return;
 942
 943         memset(addr, 0xff, ETH_ALEN);
 944         keyconf = ieee80211_key_data2conf(local, key);
 945         if (keyconf && local->ops->set_key &&
 946             local->ops->set_key(local_to_hw(local),
 947                                SET_KEY, addr, keyconf, 0) == 0) {
 948                 key->force_sw_encrypt =
 949                         !!(keyconf->flags & IEEE80211_KEY_FORCE_SW_ENCRYPT);
 950                 key->hw_key_idx = keyconf->hw_key_idx;
 951         }
 952         kfree(keyconf);
 953 }
 954
 955
 956 static void ieee80211_key_disable_hwaccel(struct ieee80211_local *local,
 957                                           struct ieee80211_key *key)
 958 {
 959         struct ieee80211_key_conf *keyconf;
 960         u8 addr[ETH_ALEN];
 961
 962         if (!key || key->alg != ALG_WEP || key->force_sw_encrypt ||
 963             (local->hw.flags & IEEE80211_HW_DEVICE_HIDES_WEP))
 964                 return;
 965
 966         memset(addr, 0xff, ETH_ALEN);
 967         keyconf = ieee80211_key_data2conf(local, key);
 968         if (keyconf && local->ops->set_key)
 969                 local->ops->set_key(local_to_hw(local), DISABLE_KEY,
 970                                    addr, keyconf, 0);
 971         kfree(keyconf);
 972         key->force_sw_encrypt = 1;
 973 }
 974
 975
 976 static int ieee80211_ioctl_default_wep_only(struct ieee80211_local *local,
 977                                             int value)
 978 {
 979         int i;
 980         struct ieee80211_sub_if_data *sdata;
 981
 982         local->default_wep_only = value;
 983         read_lock(&local->sub_if_lock);
 984         list_for_each_entry(sdata, &local->sub_if_list, list)
 985                 for (i = 0; i < NUM_DEFAULT_KEYS; i++)
 986                         if (value)
 987                                 ieee80211_key_enable_hwaccel(local,
 988                                                              sdata->keys[i]);
 989                         else
 990                                 ieee80211_key_disable_hwaccel(local,
 991                                                               sdata->keys[i]);
 992         read_unlock(&local->sub_if_lock);
 993
 994         return 0;
 995 }
 996
 997
 998 void ieee80211_update_default_wep_only(struct ieee80211_local *local)
 999 {
1000         int i = 0;
1001         struct ieee80211_sub_if_data *sdata;
1002
1003         read_lock(&local->sub_if_lock);
1004         list_for_each_entry(sdata, &local->sub_if_list, list) {
1005
1006                 if (sdata->dev == local->mdev)
1007                         continue;
1008
1009                 /* If there is an AP interface then depend on userspace to
1010                    set default_wep_only correctly. */
1011                 if (sdata->type == IEEE80211_IF_TYPE_AP) {
1012                         read_unlock(&local->sub_if_lock);
1013                         return;
1014                 }
1015
1016                 i++;
1017         }
1018
1019         read_unlock(&local->sub_if_lock);
1020
1021         if (i <= 1)
1022                 ieee80211_ioctl_default_wep_only(local, 1);
1023         else
1024                 ieee80211_ioctl_default_wep_only(local, 0);
1025 }
1026
1027
1028 static int ieee80211_ioctl_prism2_param(struct net_device *dev,
1029                                         struct iw_request_info *info,
1030                                         void *wrqu, char *extra)
1031 {
1032         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1033         struct ieee80211_sub_if_data *sdata;
1034         int *i = (int *) extra;
1035         int param = *i;
1036         int value = *(i + 1);
1037         int ret = 0;
1038
1039         if (!capable(CAP_NET_ADMIN))
1040                 return -EPERM;
1041
1042         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1043
1044         switch (param) {
1045         case PRISM2_PARAM_IEEE_802_1X:
1046                 if (local->ops->set_ieee8021x)
1047                         ret = local->ops->set_ieee8021x(local_to_hw(local),
1048                                                         value);
1049                 if (ret)
1050                         printk(KERN_DEBUG "%s: failed to set IEEE 802.1X (%d) "
1051                                "for low-level driver\n", dev->name, value);
1052                 else
1053                         sdata->ieee802_1x = value;
1054                 break;
1055
1056         case PRISM2_PARAM_CTS_PROTECT_ERP_FRAMES:
1057                 if (sdata->type != IEEE80211_IF_TYPE_AP)
1058                         ret = -ENOENT;
1059                 else
1060                         sdata->use_protection = value;
1061                 break;
1062
1063         case PRISM2_PARAM_PREAMBLE:
1064                 local->short_preamble = value;
1065                 break;
1066
1067         case PRISM2_PARAM_STAT_TIME:
1068                 if (!local->stat_time && value) {
1069                         local->stat_timer.expires = jiffies + HZ * value / 100;
1070                         add_timer(&local->stat_timer);
1071                 } else if (local->stat_time && !value) {
1072                         del_timer_sync(&local->stat_timer);
1073                 }
1074                 local->stat_time = value;
1075                 break;
1076         case PRISM2_PARAM_SHORT_SLOT_TIME:
1077                 if (value)
1078                         local->hw.conf.flags |= IEEE80211_CONF_SHORT_SLOT_TIME;
1079                 else
1080                         local->hw.conf.flags &= ~IEEE80211_CONF_SHORT_SLOT_TIME;
1081                 if (ieee80211_hw_config(local))
1082                         ret = -EINVAL;
1083                 break;
1084
1085         case PRISM2_PARAM_NEXT_MODE:
1086                 local->next_mode = value;
1087                 break;
1088
1089         case PRISM2_PARAM_RADIO_ENABLED:
1090                 ret = ieee80211_ioctl_set_radio_enabled(dev, value);
1091                 break;
1092
1093         case PRISM2_PARAM_ANTENNA_MODE:
1094                 local->hw.conf.antenna_mode = value;
1095                 if (ieee80211_hw_config(local))
1096                         ret = -EINVAL;
1097                 break;
1098
1099         case PRISM2_PARAM_STA_ANTENNA_SEL:
1100                 local->sta_antenna_sel = value;
1101                 break;
1102
1103         case PRISM2_PARAM_TX_POWER_REDUCTION:
1104                 if (value < 0)
1105                         ret = -EINVAL;
1106                 else
1107                         local->hw.conf.tx_power_reduction = value;
1108                 break;
1109
1110         case PRISM2_PARAM_KEY_TX_RX_THRESHOLD:
1111                 local->key_tx_rx_threshold = value;
1112                 break;
1113
1114         case PRISM2_PARAM_DEFAULT_WEP_ONLY:
1115                 ret = ieee80211_ioctl_default_wep_only(local, value);
1116                 break;
1117
1118         case PRISM2_PARAM_WIFI_WME_NOACK_TEST:
1119                 local->wifi_wme_noack_test = value;
1120                 break;
1121
1122         case PRISM2_PARAM_SCAN_FLAGS:
1123                 local->scan_flags = value;
1124                 break;
1125
1126         case PRISM2_PARAM_MIXED_CELL:
1127                 if (sdata->type != IEEE80211_IF_TYPE_STA &&
1128                     sdata->type != IEEE80211_IF_TYPE_IBSS)
1129                         ret = -EINVAL;
1130                 else
1131                         sdata->u.sta.mixed_cell = !!value;
1132                 break;
1133
1134         case PRISM2_PARAM_HW_MODES:
1135                 local->enabled_modes = value;
1136                 break;
1137
1138         case PRISM2_PARAM_CREATE_IBSS:
1139                 if (sdata->type != IEEE80211_IF_TYPE_IBSS)
1140                         ret = -EINVAL;
1141                 else
1142                         sdata->u.sta.create_ibss = !!value;
1143                 break;
1144         case PRISM2_PARAM_WMM_ENABLED:
1145                 if (sdata->type != IEEE80211_IF_TYPE_STA &&
1146                     sdata->type != IEEE80211_IF_TYPE_IBSS)
1147                         ret = -EINVAL;
1148                 else
1149                         sdata->u.sta.wmm_enabled = !!value;
1150                 break;
1151         case PRISM2_PARAM_RADAR_DETECT:
1152                 local->hw.conf.radar_detect = value;
1153                 break;
1154         case PRISM2_PARAM_SPECTRUM_MGMT:
1155                 local->hw.conf.spect_mgmt = value;
1156                 break;
1157         default:
1158                 ret = -EOPNOTSUPP;
1159                 break;
1160         }
1161
1162         return ret;
1163 }
1164
1165
1166 static int ieee80211_ioctl_get_prism2_param(struct net_device *dev,
1167                                             struct iw_request_info *info,
1168                                             void *wrqu, char *extra)
1169 {
1170         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1171         struct ieee80211_sub_if_data *sdata;
1172         int *param = (int *) extra;
1173         int ret = 0;
1174
1175         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1176
1177         switch (*param) {
1178         case PRISM2_PARAM_IEEE_802_1X:
1179                 *param = sdata->ieee802_1x;
1180                 break;
1181
1182         case PRISM2_PARAM_CTS_PROTECT_ERP_FRAMES:
1183                 *param = sdata->use_protection;
1184                 break;
1185
1186         case PRISM2_PARAM_PREAMBLE:
1187                 *param = local->short_preamble;
1188                 break;
1189
1190         case PRISM2_PARAM_STAT_TIME:
1191                 *param = local->stat_time;
1192                 break;
1193         case PRISM2_PARAM_SHORT_SLOT_TIME:
1194                 *param = !!(local->hw.conf.flags & IEEE80211_CONF_SHORT_SLOT_TIME);
1195                 break;
1196
1197         case PRISM2_PARAM_NEXT_MODE:
1198                 *param = local->next_mode;
1199                 break;
1200
1201         case PRISM2_PARAM_ANTENNA_MODE:
1202                 *param = local->hw.conf.antenna_mode;
1203                 break;
1204
1205         case PRISM2_PARAM_STA_ANTENNA_SEL:
1206                 *param = local->sta_antenna_sel;
1207                 break;
1208
1209         case PRISM2_PARAM_TX_POWER_REDUCTION:
1210                 *param = local->hw.conf.tx_power_reduction;
1211                 break;
1212
1213         case PRISM2_PARAM_KEY_TX_RX_THRESHOLD:
1214                 *param = local->key_tx_rx_threshold;
1215                 break;
1216
1217         case PRISM2_PARAM_DEFAULT_WEP_ONLY:
1218                 *param = local->default_wep_only;
1219                 break;
1220
1221         case PRISM2_PARAM_WIFI_WME_NOACK_TEST:
1222                 *param = local->wifi_wme_noack_test;
1223                 break;
1224
1225         case PRISM2_PARAM_SCAN_FLAGS:
1226                 *param = local->scan_flags;
1227                 break;
1228
1229         case PRISM2_PARAM_HW_MODES:
1230                 *param = local->enabled_modes;
1231                 break;
1232
1233         case PRISM2_PARAM_CREATE_IBSS:
1234                 if (sdata->type != IEEE80211_IF_TYPE_IBSS)
1235                         ret = -EINVAL;
1236                 else
1237                         *param = !!sdata->u.sta.create_ibss;
1238                 break;
1239
1240         case PRISM2_PARAM_MIXED_CELL:
1241                 if (sdata->type != IEEE80211_IF_TYPE_STA &&
1242                     sdata->type != IEEE80211_IF_TYPE_IBSS)
1243                         ret = -EINVAL;
1244                 else
1245                         *param = !!sdata->u.sta.mixed_cell;
1246                 break;
1247         case PRISM2_PARAM_WMM_ENABLED:
1248                 if (sdata->type != IEEE80211_IF_TYPE_STA &&
1249                     sdata->type != IEEE80211_IF_TYPE_IBSS)
1250                         ret = -EINVAL;
1251                 else
1252                         *param = !!sdata->u.sta.wmm_enabled;
1253                 break;
1254         default:
1255                 ret = -EOPNOTSUPP;
1256                 break;
1257         }
1258
1259         return ret;
1260 }
1261
1262 static int ieee80211_ioctl_siwmlme(struct net_device *dev,
1263                                    struct iw_request_info *info,
1264                                    struct iw_point *data, char *extra)
1265 {
1266         struct ieee80211_sub_if_data *sdata;
1267         struct iw_mlme *mlme = (struct iw_mlme *) extra;
1268
1269         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1270         if (sdata->type != IEEE80211_IF_TYPE_STA &&
1271             sdata->type != IEEE80211_IF_TYPE_IBSS)
1272                 return -EINVAL;
1273
1274         switch (mlme->cmd) {
1275         case IW_MLME_DEAUTH:
1276                 /* TODO: mlme->addr.sa_data */
1277                 return ieee80211_sta_deauthenticate(dev, mlme->reason_code);
1278         case IW_MLME_DISASSOC:
1279                 /* TODO: mlme->addr.sa_data */
1280                 return ieee80211_sta_disassociate(dev, mlme->reason_code);
1281         default:
1282                 return -EOPNOTSUPP;
1283         }
1284 }
1285
1286
1287 static int ieee80211_ioctl_siwencode(struct net_device *dev,
1288                                      struct iw_request_info *info,
1289                                      struct iw_point *erq, char *keybuf)
1290 {
1291         struct ieee80211_sub_if_data *sdata;
1292         int idx, i, alg = ALG_WEP;
1293         u8 bcaddr[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
1294
1295         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1296
1297         idx = erq->flags & IW_ENCODE_INDEX;
1298         if (idx == 0) {
1299                 if (sdata->default_key)
1300                         for (i = 0; i < NUM_DEFAULT_KEYS; i++) {
1301                                 if (sdata->default_key == sdata->keys[i]) {
1302                                         idx = i;
1303                                         break;
1304                                 }
1305                         }
1306         } else if (idx < 1 || idx > 4)
1307                 return -EINVAL;
1308         else
1309                 idx--;
1310
1311         if (erq->flags & IW_ENCODE_DISABLED)
1312                 alg = ALG_NONE;
1313         else if (erq->length == 0) {
1314                 /* No key data - just set the default TX key index */
1315                 if (sdata->default_key != sdata->keys[idx]) {
1316                         ieee80211_debugfs_key_remove_default(sdata);
1317                         sdata->default_key = sdata->keys[idx];
1318                         if (sdata->default_key)
1319                                 ieee80211_debugfs_key_add_default(sdata);
1320                 }
1321                 return 0;
1322         }
1323
1324         return ieee80211_set_encryption(
1325                 dev, bcaddr,
1326                 idx, alg,
1327                 !sdata->default_key,
1328                 keybuf, erq->length);
1329 }
1330
1331
1332 static int ieee80211_ioctl_giwencode(struct net_device *dev,
1333                                      struct iw_request_info *info,
1334                                      struct iw_point *erq, char *key)
1335 {
1336         struct ieee80211_sub_if_data *sdata;
1337         int idx, i;
1338
1339         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1340
1341         idx = erq->flags & IW_ENCODE_INDEX;
1342         if (idx < 1 || idx > 4) {
1343                 idx = -1;
1344                 if (!sdata->default_key)
1345                         idx = 0;
1346                 else for (i = 0; i < NUM_DEFAULT_KEYS; i++) {
1347                         if (sdata->default_key == sdata->keys[i]) {
1348                                 idx = i;
1349                                 break;
1350                         }
1351                 }
1352                 if (idx < 0)
1353                         return -EINVAL;
1354         } else
1355                 idx--;
1356
1357         erq->flags = idx + 1;
1358
1359         if (!sdata->keys[idx]) {
1360                 erq->length = 0;
1361                 erq->flags |= IW_ENCODE_DISABLED;
1362                 return 0;
1363         }
1364
1365         memcpy(key, sdata->keys[idx]->key,
1366                min((int)erq->length, sdata->keys[idx]->keylen));
1367         erq->length = sdata->keys[idx]->keylen;
1368         erq->flags |= IW_ENCODE_ENABLED;
1369
1370         return 0;
1371 }
1372
1373 static int ieee80211_ioctl_siwauth(struct net_device *dev,
1374                                    struct iw_request_info *info,
1375                                    struct iw_param *data, char *extra)
1376 {
1377         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1378         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1379         int ret = 0;
1380
1381         switch (data->flags & IW_AUTH_INDEX) {
1382         case IW_AUTH_WPA_VERSION:
1383         case IW_AUTH_CIPHER_PAIRWISE:
1384         case IW_AUTH_CIPHER_GROUP:
1385         case IW_AUTH_WPA_ENABLED:
1386         case IW_AUTH_RX_UNENCRYPTED_EAPOL:
1387                 break;
1388         case IW_AUTH_KEY_MGMT:
1389                 if (sdata->type != IEEE80211_IF_TYPE_STA)
1390                         ret = -EINVAL;
1391                 else {
1392                         /*
1393                          * TODO: sdata->u.sta.key_mgmt does not match with WE18
1394                          * value completely; could consider modifying this to
1395                          * be closer to WE18. For now, this value is not really
1396                          * used for anything else than Privacy matching, so the
1397                          * current code here should be more or less OK.
1398                          */
1399                         if (data->value & IW_AUTH_KEY_MGMT_802_1X) {
1400                                 sdata->u.sta.key_mgmt =
1401                                         IEEE80211_KEY_MGMT_WPA_EAP;
1402                         } else if (data->value & IW_AUTH_KEY_MGMT_PSK) {
1403                                 sdata->u.sta.key_mgmt =
1404                                         IEEE80211_KEY_MGMT_WPA_PSK;
1405                         } else {
1406                                 sdata->u.sta.key_mgmt =
1407                                         IEEE80211_KEY_MGMT_NONE;
1408                         }
1409                 }
1410                 break;
1411         case IW_AUTH_80211_AUTH_ALG:
1412                 if (sdata->type == IEEE80211_IF_TYPE_STA ||
1413                     sdata->type == IEEE80211_IF_TYPE_IBSS)
1414                         sdata->u.sta.auth_algs = data->value;
1415                 else
1416                         ret = -EOPNOTSUPP;
1417                 break;
1418         case IW_AUTH_PRIVACY_INVOKED:
1419                 if (local->ops->set_privacy_invoked)
1420                         ret = local->ops->set_privacy_invoked(
1421                                         local_to_hw(local), data->value);
1422                 break;
1423         default:
1424                 ret = -EOPNOTSUPP;
1425                 break;
1426         }
1427         return ret;
1428 }
1429
1430 /* Get wireless statistics.  Called by /proc/net/wireless and by SIOCGIWSTATS */
1431 static struct iw_statistics *ieee80211_get_wireless_stats(struct net_device *dev)
1432 {
1433         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1434         struct iw_statistics *wstats = &local->wstats;
1435         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1436         struct sta_info *sta = NULL;
1437
1438         if (sdata->type == IEEE80211_IF_TYPE_STA ||
1439             sdata->type == IEEE80211_IF_TYPE_IBSS)
1440                 sta = sta_info_get(local, sdata->u.sta.bssid);
1441         if (!sta) {
1442                 wstats->discard.fragment = 0;
1443                 wstats->discard.misc = 0;
1444                 wstats->qual.qual = 0;
1445                 wstats->qual.level = 0;
1446                 wstats->qual.noise = 0;
1447                 wstats->qual.updated = IW_QUAL_ALL_INVALID;
1448         } else {
1449                 wstats->qual.level = sta->last_rssi;
1450                 wstats->qual.qual = sta->last_signal;
1451                 wstats->qual.noise = sta->last_noise;
1452                 wstats->qual.updated = local->wstats_flags;
1453                 sta_info_put(sta);
1454         }
1455         return wstats;
1456 }
1457
1458 static int ieee80211_ioctl_giwauth(struct net_device *dev,
1459                                    struct iw_request_info *info,
1460                                    struct iw_param *data, char *extra)
1461 {
1462         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1463         int ret = 0;
1464
1465         switch (data->flags & IW_AUTH_INDEX) {
1466         case IW_AUTH_80211_AUTH_ALG:
1467                 if (sdata->type == IEEE80211_IF_TYPE_STA ||
1468                     sdata->type == IEEE80211_IF_TYPE_IBSS)
1469                         data->value = sdata->u.sta.auth_algs;
1470                 else
1471                         ret = -EOPNOTSUPP;
1472                 break;
1473         default:
1474                 ret = -EOPNOTSUPP;
1475                 break;
1476         }
1477         return ret;
1478 }
1479
1480
1481 static int ieee80211_ioctl_siwencodeext(struct net_device *dev,
1482                                         struct iw_request_info *info,
1483                                         struct iw_point *erq, char *extra)
1484 {
1485         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1486         struct iw_encode_ext *ext = (struct iw_encode_ext *) extra;
1487         int alg, idx, i;
1488
1489         switch (ext->alg) {
1490         case IW_ENCODE_ALG_NONE:
1491                 alg = ALG_NONE;
1492                 break;
1493         case IW_ENCODE_ALG_WEP:
1494                 alg = ALG_WEP;
1495                 break;
1496         case IW_ENCODE_ALG_TKIP:
1497                 alg = ALG_TKIP;
1498                 break;
1499         case IW_ENCODE_ALG_CCMP:
1500                 alg = ALG_CCMP;
1501                 break;
1502         default:
1503                 return -EOPNOTSUPP;
1504         }
1505
1506         if (erq->flags & IW_ENCODE_DISABLED)
1507                 alg = ALG_NONE;
1508
1509         idx = erq->flags & IW_ENCODE_INDEX;
1510         if (idx < 1 || idx > 4) {
1511                 idx = -1;
1512                 if (!sdata->default_key)
1513                         idx = 0;
1514                 else for (i = 0; i < NUM_DEFAULT_KEYS; i++) {
1515                         if (sdata->default_key == sdata->keys[i]) {
1516                                 idx = i;
1517                                 break;
1518                         }
1519                 }
1520                 if (idx < 0)
1521                         return -EINVAL;
1522         } else
1523                 idx--;
1524
1525         return ieee80211_set_encryption(dev, ext->addr.sa_data, idx, alg,
1526                                         ext->ext_flags &
1527                                         IW_ENCODE_EXT_SET_TX_KEY,
1528                                         ext->key, ext->key_len);
1529 }
1530
1531
1532 static const struct iw_priv_args ieee80211_ioctl_priv[] = {
1533         { PRISM2_IOCTL_PRISM2_PARAM,
1534           IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 2, 0, "param" },
1535         { PRISM2_IOCTL_GET_PRISM2_PARAM,
1536           IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
1537           IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "get_param" },
1538 };
1539
1540 /* Structures to export the Wireless Handlers */
1541
1542 static const iw_handler ieee80211_handler[] =
1543 {
1544         (iw_handler) NULL,                              /* SIOCSIWCOMMIT */
1545         (iw_handler) ieee80211_ioctl_giwname,           /* SIOCGIWNAME */
1546         (iw_handler) NULL,                              /* SIOCSIWNWID */
1547         (iw_handler) NULL,                              /* SIOCGIWNWID */
1548         (iw_handler) ieee80211_ioctl_siwfreq,           /* SIOCSIWFREQ */
1549         (iw_handler) ieee80211_ioctl_giwfreq,           /* SIOCGIWFREQ */
1550         (iw_handler) ieee80211_ioctl_siwmode,           /* SIOCSIWMODE */
1551         (iw_handler) ieee80211_ioctl_giwmode,           /* SIOCGIWMODE */
1552         (iw_handler) NULL,                              /* SIOCSIWSENS */
1553         (iw_handler) NULL,                              /* SIOCGIWSENS */
1554         (iw_handler) NULL /* not used */,               /* SIOCSIWRANGE */
1555         (iw_handler) ieee80211_ioctl_giwrange,          /* SIOCGIWRANGE */
1556         (iw_handler) NULL /* not used */,               /* SIOCSIWPRIV */
1557         (iw_handler) NULL /* kernel code */,            /* SIOCGIWPRIV */
1558         (iw_handler) NULL /* not used */,               /* SIOCSIWSTATS */
1559         (iw_handler) NULL /* kernel code */,            /* SIOCGIWSTATS */
1560         iw_handler_set_spy,                             /* SIOCSIWSPY */
1561         iw_handler_get_spy,                             /* SIOCGIWSPY */
1562         iw_handler_set_thrspy,                          /* SIOCSIWTHRSPY */
1563         iw_handler_get_thrspy,                          /* SIOCGIWTHRSPY */
1564         (iw_handler) ieee80211_ioctl_siwap,             /* SIOCSIWAP */
1565         (iw_handler) ieee80211_ioctl_giwap,             /* SIOCGIWAP */
1566         (iw_handler) ieee80211_ioctl_siwmlme,           /* SIOCSIWMLME */
1567         (iw_handler) NULL,                              /* SIOCGIWAPLIST */
1568         (iw_handler) ieee80211_ioctl_siwscan,           /* SIOCSIWSCAN */
1569         (iw_handler) ieee80211_ioctl_giwscan,           /* SIOCGIWSCAN */
1570         (iw_handler) ieee80211_ioctl_siwessid,          /* SIOCSIWESSID */
1571         (iw_handler) ieee80211_ioctl_giwessid,          /* SIOCGIWESSID */
1572         (iw_handler) NULL,                              /* SIOCSIWNICKN */
1573         (iw_handler) NULL,                              /* SIOCGIWNICKN */
1574         (iw_handler) NULL,                              /* -- hole -- */
1575         (iw_handler) NULL,                              /* -- hole -- */
1576         (iw_handler) ieee80211_ioctl_siwrate,           /* SIOCSIWRATE */
1577         (iw_handler) ieee80211_ioctl_giwrate,           /* SIOCGIWRATE */
1578         (iw_handler) ieee80211_ioctl_siwrts,            /* SIOCSIWRTS */
1579         (iw_handler) ieee80211_ioctl_giwrts,            /* SIOCGIWRTS */
1580         (iw_handler) ieee80211_ioctl_siwfrag,           /* SIOCSIWFRAG */
1581         (iw_handler) ieee80211_ioctl_giwfrag,           /* SIOCGIWFRAG */
1582         (iw_handler) NULL,                              /* SIOCSIWTXPOW */
1583         (iw_handler) NULL,                              /* SIOCGIWTXPOW */
1584         (iw_handler) ieee80211_ioctl_siwretry,          /* SIOCSIWRETRY */
1585         (iw_handler) ieee80211_ioctl_giwretry,          /* SIOCGIWRETRY */
1586         (iw_handler) ieee80211_ioctl_siwencode,         /* SIOCSIWENCODE */
1587         (iw_handler) ieee80211_ioctl_giwencode,         /* SIOCGIWENCODE */
1588         (iw_handler) NULL,                              /* SIOCSIWPOWER */
1589         (iw_handler) NULL,                              /* SIOCGIWPOWER */
1590         (iw_handler) NULL,                              /* -- hole -- */
1591         (iw_handler) NULL,                              /* -- hole -- */
1592         (iw_handler) ieee80211_ioctl_siwgenie,          /* SIOCSIWGENIE */
1593         (iw_handler) NULL,                              /* SIOCGIWGENIE */
1594         (iw_handler) ieee80211_ioctl_siwauth,           /* SIOCSIWAUTH */
1595         (iw_handler) ieee80211_ioctl_giwauth,           /* SIOCGIWAUTH */
1596         (iw_handler) ieee80211_ioctl_siwencodeext,      /* SIOCSIWENCODEEXT */
1597         (iw_handler) NULL,                              /* SIOCGIWENCODEEXT */
1598         (iw_handler) NULL,                              /* SIOCSIWPMKSA */
1599         (iw_handler) NULL,                              /* -- hole -- */
1600 };
1601
1602 static const iw_handler ieee80211_private_handler[] =
1603 {                                                       /* SIOCIWFIRSTPRIV + */
1604         (iw_handler) ieee80211_ioctl_prism2_param,      /* 0 */
1605         (iw_handler) ieee80211_ioctl_get_prism2_param,  /* 1 */
1606 };
1607
1608 const struct iw_handler_def ieee80211_iw_handler_def =
1609 {
1610         .num_standard   = ARRAY_SIZE(ieee80211_handler),
1611         .num_private    = ARRAY_SIZE(ieee80211_private_handler),
1612         .num_private_args = ARRAY_SIZE(ieee80211_ioctl_priv),
1613         .standard       = (iw_handler *) ieee80211_handler,
1614         .private        = (iw_handler *) ieee80211_private_handler,
1615         .private_args   = (struct iw_priv_args *) ieee80211_ioctl_priv,
1616         .get_wireless_stats = ieee80211_get_wireless_stats,
1617 };