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         if (local->scan_flags & IEEE80211_SCAN_MATCH_SSID) {
 701                 if (sdata->type == IEEE80211_IF_TYPE_STA ||
 702                     sdata->type == IEEE80211_IF_TYPE_IBSS) {
 703                         ssid = sdata->u.sta.ssid;
 704                         ssid_len = sdata->u.sta.ssid_len;
 705                 } else if (sdata->type == IEEE80211_IF_TYPE_AP) {
 706                         ssid = sdata->u.ap.ssid;
 707                         ssid_len = sdata->u.ap.ssid_len;
 708                 } else
 709                         return -EINVAL;
 710         }
 711         return ieee80211_sta_req_scan(dev, ssid, ssid_len);
 712 }
 713
 714
 715 static int ieee80211_ioctl_giwscan(struct net_device *dev,
 716                                    struct iw_request_info *info,
 717                                    struct iw_point *data, char *extra)
 718 {
 719         int res;
 720         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 721         if (local->sta_scanning)
 722                 return -EAGAIN;
 723         res = ieee80211_sta_scan_results(dev, extra, data->length);
 724         if (res >= 0) {
 725                 data->length = res;
 726                 return 0;
 727         }
 728         data->length = 0;
 729         return res;
 730 }
 731
 732
 733 static int ieee80211_ioctl_siwrate(struct net_device *dev,
 734                                   struct iw_request_info *info,
 735                                   struct iw_param *rate, char *extra)
 736 {
 737         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 738         struct ieee80211_hw_mode *mode;
 739         int i;
 740         u32 target_rate = rate->value / 100000;
 741         struct ieee80211_sub_if_data *sdata;
 742
 743         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 744         if (!sdata->bss)
 745                 return -ENODEV;
 746         mode = local->oper_hw_mode;
 747         /* target_rate = -1, rate->fixed = 0 means auto only, so use all rates
 748          * target_rate = X, rate->fixed = 1 means only rate X
 749          * target_rate = X, rate->fixed = 0 means all rates <= X */
 750         sdata->bss->max_ratectrl_rateidx = -1;
 751         sdata->bss->force_unicast_rateidx = -1;
 752         if (rate->value < 0)
 753                 return 0;
 754         for (i=0; i< mode->num_rates; i++) {
 755                 struct ieee80211_rate *rates = &mode->rates[i];
 756                 int this_rate = rates->rate;
 757
 758                 if (mode->mode == MODE_ATHEROS_TURBO ||
 759                     mode->mode == MODE_ATHEROS_TURBOG)
 760                         this_rate *= 2;
 761                 if (target_rate == this_rate) {
 762                         sdata->bss->max_ratectrl_rateidx = i;
 763                         if (rate->fixed)
 764                                 sdata->bss->force_unicast_rateidx = i;
 765                         break;
 766                 }
 767         }
 768         return 0;
 769 }
 770
 771 static int ieee80211_ioctl_giwrate(struct net_device *dev,
 772                                   struct iw_request_info *info,
 773                                   struct iw_param *rate, char *extra)
 774 {
 775         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 776         struct sta_info *sta;
 777         struct ieee80211_sub_if_data *sdata;
 778
 779         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 780         if (sdata->type == IEEE80211_IF_TYPE_STA)
 781                 sta = sta_info_get(local, sdata->u.sta.bssid);
 782         else
 783                 return -EOPNOTSUPP;
 784         if (!sta)
 785                 return -ENODEV;
 786         if (sta->txrate < local->oper_hw_mode->num_rates)
 787                 rate->value = local->oper_hw_mode->rates[sta->txrate].rate * 100000;
 788         else
 789                 rate->value = 0;
 790         sta_info_put(sta);
 791         return 0;
 792 }
 793
 794 static int ieee80211_ioctl_siwrts(struct net_device *dev,
 795                                   struct iw_request_info *info,
 796                                   struct iw_param *rts, char *extra)
 797 {
 798         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 799
 800         if (rts->disabled)
 801                 local->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
 802         else if (rts->value < 0 || rts->value > IEEE80211_MAX_RTS_THRESHOLD)
 803                 return -EINVAL;
 804         else
 805                 local->rts_threshold = rts->value;
 806
 807         /* If the wlan card performs RTS/CTS in hardware/firmware,
 808          * configure it here */
 809
 810         if (local->ops->set_rts_threshold)
 811                 local->ops->set_rts_threshold(local_to_hw(local),
 812                                              local->rts_threshold);
 813
 814         return 0;
 815 }
 816
 817 static int ieee80211_ioctl_giwrts(struct net_device *dev,
 818                                   struct iw_request_info *info,
 819                                   struct iw_param *rts, char *extra)
 820 {
 821         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 822
 823         rts->value = local->rts_threshold;
 824         rts->disabled = (rts->value >= IEEE80211_MAX_RTS_THRESHOLD);
 825         rts->fixed = 1;
 826
 827         return 0;
 828 }
 829
 830
 831 static int ieee80211_ioctl_siwfrag(struct net_device *dev,
 832                                    struct iw_request_info *info,
 833                                    struct iw_param *frag, char *extra)
 834 {
 835         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 836
 837         if (frag->disabled)
 838                 local->fragmentation_threshold = IEEE80211_MAX_FRAG_THRESHOLD;
 839         else if (frag->value < 256 ||
 840                  frag->value > IEEE80211_MAX_FRAG_THRESHOLD)
 841                 return -EINVAL;
 842         else {
 843                 /* Fragment length must be even, so strip LSB. */
 844                 local->fragmentation_threshold = frag->value & ~0x1;
 845         }
 846
 847         /* If the wlan card performs fragmentation in hardware/firmware,
 848          * configure it here */
 849
 850         if (local->ops->set_frag_threshold)
 851                 local->ops->set_frag_threshold(
 852                         local_to_hw(local),
 853                         local->fragmentation_threshold);
 854
 855         return 0;
 856 }
 857
 858 static int ieee80211_ioctl_giwfrag(struct net_device *dev,
 859                                    struct iw_request_info *info,
 860                                    struct iw_param *frag, char *extra)
 861 {
 862         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 863
 864         frag->value = local->fragmentation_threshold;
 865         frag->disabled = (frag->value >= IEEE80211_MAX_RTS_THRESHOLD);
 866         frag->fixed = 1;
 867
 868         return 0;
 869 }
 870
 871
 872 static int ieee80211_ioctl_siwretry(struct net_device *dev,
 873                                     struct iw_request_info *info,
 874                                     struct iw_param *retry, char *extra)
 875 {
 876         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 877
 878         if (retry->disabled ||
 879             (retry->flags & IW_RETRY_TYPE) != IW_RETRY_LIMIT)
 880                 return -EINVAL;
 881
 882         if (retry->flags & IW_RETRY_MAX)
 883                 local->long_retry_limit = retry->value;
 884         else if (retry->flags & IW_RETRY_MIN)
 885                 local->short_retry_limit = retry->value;
 886         else {
 887                 local->long_retry_limit = retry->value;
 888                 local->short_retry_limit = retry->value;
 889         }
 890
 891         if (local->ops->set_retry_limit) {
 892                 return local->ops->set_retry_limit(
 893                         local_to_hw(local),
 894                         local->short_retry_limit,
 895                         local->long_retry_limit);
 896         }
 897
 898         return 0;
 899 }
 900
 901
 902 static int ieee80211_ioctl_giwretry(struct net_device *dev,
 903                                     struct iw_request_info *info,
 904                                     struct iw_param *retry, char *extra)
 905 {
 906         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 907
 908         retry->disabled = 0;
 909         if (retry->flags == 0 || retry->flags & IW_RETRY_MIN) {
 910                 /* first return min value, iwconfig will ask max value
 911                  * later if needed */
 912                 retry->flags |= IW_RETRY_LIMIT;
 913                 retry->value = local->short_retry_limit;
 914                 if (local->long_retry_limit != local->short_retry_limit)
 915                         retry->flags |= IW_RETRY_MIN;
 916                 return 0;
 917         }
 918         if (retry->flags & IW_RETRY_MAX) {
 919                 retry->flags = IW_RETRY_LIMIT | IW_RETRY_MAX;
 920                 retry->value = local->long_retry_limit;
 921         }
 922
 923         return 0;
 924 }
 925
 926 static void ieee80211_key_enable_hwaccel(struct ieee80211_local *local,
 927                                          struct ieee80211_key *key)
 928 {
 929         struct ieee80211_key_conf *keyconf;
 930         u8 addr[ETH_ALEN];
 931
 932         if (!key || key->alg != ALG_WEP || !key->force_sw_encrypt ||
 933             (local->hw.flags & IEEE80211_HW_DEVICE_HIDES_WEP))
 934                 return;
 935
 936         memset(addr, 0xff, ETH_ALEN);
 937         keyconf = ieee80211_key_data2conf(local, key);
 938         if (keyconf && local->ops->set_key &&
 939             local->ops->set_key(local_to_hw(local),
 940                                SET_KEY, addr, keyconf, 0) == 0) {
 941                 key->force_sw_encrypt =
 942                         !!(keyconf->flags & IEEE80211_KEY_FORCE_SW_ENCRYPT);
 943                 key->hw_key_idx = keyconf->hw_key_idx;
 944         }
 945         kfree(keyconf);
 946 }
 947
 948
 949 static void ieee80211_key_disable_hwaccel(struct ieee80211_local *local,
 950                                           struct ieee80211_key *key)
 951 {
 952         struct ieee80211_key_conf *keyconf;
 953         u8 addr[ETH_ALEN];
 954
 955         if (!key || key->alg != ALG_WEP || key->force_sw_encrypt ||
 956             (local->hw.flags & IEEE80211_HW_DEVICE_HIDES_WEP))
 957                 return;
 958
 959         memset(addr, 0xff, ETH_ALEN);
 960         keyconf = ieee80211_key_data2conf(local, key);
 961         if (keyconf && local->ops->set_key)
 962                 local->ops->set_key(local_to_hw(local), DISABLE_KEY,
 963                                    addr, keyconf, 0);
 964         kfree(keyconf);
 965         key->force_sw_encrypt = 1;
 966 }
 967
 968
 969 static int ieee80211_ioctl_default_wep_only(struct ieee80211_local *local,
 970                                             int value)
 971 {
 972         int i;
 973         struct ieee80211_sub_if_data *sdata;
 974
 975         local->default_wep_only = value;
 976         read_lock(&local->sub_if_lock);
 977         list_for_each_entry(sdata, &local->sub_if_list, list)
 978                 for (i = 0; i < NUM_DEFAULT_KEYS; i++)
 979                         if (value)
 980                                 ieee80211_key_enable_hwaccel(local,
 981                                                              sdata->keys[i]);
 982                         else
 983                                 ieee80211_key_disable_hwaccel(local,
 984                                                               sdata->keys[i]);
 985         read_unlock(&local->sub_if_lock);
 986
 987         return 0;
 988 }
 989
 990
 991 void ieee80211_update_default_wep_only(struct ieee80211_local *local)
 992 {
 993         int i = 0;
 994         struct ieee80211_sub_if_data *sdata;
 995
 996         read_lock(&local->sub_if_lock);
 997         list_for_each_entry(sdata, &local->sub_if_list, list) {
 998
 999                 if (sdata->dev == local->mdev)
1000                         continue;
1001
1002                 /* If there is an AP interface then depend on userspace to
1003                    set default_wep_only correctly. */
1004                 if (sdata->type == IEEE80211_IF_TYPE_AP) {
1005                         read_unlock(&local->sub_if_lock);
1006                         return;
1007                 }
1008
1009                 i++;
1010         }
1011
1012         read_unlock(&local->sub_if_lock);
1013
1014         if (i <= 1)
1015                 ieee80211_ioctl_default_wep_only(local, 1);
1016         else
1017                 ieee80211_ioctl_default_wep_only(local, 0);
1018 }
1019
1020
1021 static int ieee80211_ioctl_prism2_param(struct net_device *dev,
1022                                         struct iw_request_info *info,
1023                                         void *wrqu, char *extra)
1024 {
1025         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1026         struct ieee80211_sub_if_data *sdata;
1027         int *i = (int *) extra;
1028         int param = *i;
1029         int value = *(i + 1);
1030         int ret = 0;
1031
1032         if (!capable(CAP_NET_ADMIN))
1033                 return -EPERM;
1034
1035         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1036
1037         switch (param) {
1038         case PRISM2_PARAM_IEEE_802_1X:
1039                 if (local->ops->set_ieee8021x)
1040                         ret = local->ops->set_ieee8021x(local_to_hw(local),
1041                                                         value);
1042                 if (ret)
1043                         printk(KERN_DEBUG "%s: failed to set IEEE 802.1X (%d) "
1044                                "for low-level driver\n", dev->name, value);
1045                 else
1046                         sdata->ieee802_1x = value;
1047                 break;
1048
1049         case PRISM2_PARAM_CTS_PROTECT_ERP_FRAMES:
1050                 if (sdata->type != IEEE80211_IF_TYPE_AP)
1051                         ret = -ENOENT;
1052                 else
1053                         sdata->use_protection = value;
1054                 break;
1055
1056         case PRISM2_PARAM_PREAMBLE:
1057                 local->short_preamble = value;
1058                 break;
1059
1060         case PRISM2_PARAM_STAT_TIME:
1061                 if (!local->stat_time && value) {
1062                         local->stat_timer.expires = jiffies + HZ * value / 100;
1063                         add_timer(&local->stat_timer);
1064                 } else if (local->stat_time && !value) {
1065                         del_timer_sync(&local->stat_timer);
1066                 }
1067                 local->stat_time = value;
1068                 break;
1069         case PRISM2_PARAM_SHORT_SLOT_TIME:
1070                 if (value)
1071                         local->hw.conf.flags |= IEEE80211_CONF_SHORT_SLOT_TIME;
1072                 else
1073                         local->hw.conf.flags &= ~IEEE80211_CONF_SHORT_SLOT_TIME;
1074                 if (ieee80211_hw_config(local))
1075                         ret = -EINVAL;
1076                 break;
1077
1078         case PRISM2_PARAM_NEXT_MODE:
1079                 local->next_mode = value;
1080                 break;
1081
1082         case PRISM2_PARAM_RADIO_ENABLED:
1083                 ret = ieee80211_ioctl_set_radio_enabled(dev, value);
1084                 break;
1085
1086         case PRISM2_PARAM_ANTENNA_MODE:
1087                 local->hw.conf.antenna_mode = value;
1088                 if (ieee80211_hw_config(local))
1089                         ret = -EINVAL;
1090                 break;
1091
1092         case PRISM2_PARAM_STA_ANTENNA_SEL:
1093                 local->sta_antenna_sel = value;
1094                 break;
1095
1096         case PRISM2_PARAM_TX_POWER_REDUCTION:
1097                 if (value < 0)
1098                         ret = -EINVAL;
1099                 else
1100                         local->hw.conf.tx_power_reduction = value;
1101                 break;
1102
1103         case PRISM2_PARAM_KEY_TX_RX_THRESHOLD:
1104                 local->key_tx_rx_threshold = value;
1105                 break;
1106
1107         case PRISM2_PARAM_DEFAULT_WEP_ONLY:
1108                 ret = ieee80211_ioctl_default_wep_only(local, value);
1109                 break;
1110
1111         case PRISM2_PARAM_WIFI_WME_NOACK_TEST:
1112                 local->wifi_wme_noack_test = value;
1113                 break;
1114
1115         case PRISM2_PARAM_SCAN_FLAGS:
1116                 local->scan_flags = value;
1117                 break;
1118
1119         case PRISM2_PARAM_MIXED_CELL:
1120                 if (sdata->type != IEEE80211_IF_TYPE_STA &&
1121                     sdata->type != IEEE80211_IF_TYPE_IBSS)
1122                         ret = -EINVAL;
1123                 else
1124                         sdata->u.sta.mixed_cell = !!value;
1125                 break;
1126
1127         case PRISM2_PARAM_HW_MODES:
1128                 local->enabled_modes = value;
1129                 break;
1130
1131         case PRISM2_PARAM_CREATE_IBSS:
1132                 if (sdata->type != IEEE80211_IF_TYPE_IBSS)
1133                         ret = -EINVAL;
1134                 else
1135                         sdata->u.sta.create_ibss = !!value;
1136                 break;
1137         case PRISM2_PARAM_WMM_ENABLED:
1138                 if (sdata->type != IEEE80211_IF_TYPE_STA &&
1139                     sdata->type != IEEE80211_IF_TYPE_IBSS)
1140                         ret = -EINVAL;
1141                 else
1142                         sdata->u.sta.wmm_enabled = !!value;
1143                 break;
1144         case PRISM2_PARAM_RADAR_DETECT:
1145                 local->hw.conf.radar_detect = value;
1146                 break;
1147         case PRISM2_PARAM_SPECTRUM_MGMT:
1148                 local->hw.conf.spect_mgmt = value;
1149                 break;
1150         default:
1151                 ret = -EOPNOTSUPP;
1152                 break;
1153         }
1154
1155         return ret;
1156 }
1157
1158
1159 static int ieee80211_ioctl_get_prism2_param(struct net_device *dev,
1160                                             struct iw_request_info *info,
1161                                             void *wrqu, char *extra)
1162 {
1163         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1164         struct ieee80211_sub_if_data *sdata;
1165         int *param = (int *) extra;
1166         int ret = 0;
1167
1168         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1169
1170         switch (*param) {
1171         case PRISM2_PARAM_IEEE_802_1X:
1172                 *param = sdata->ieee802_1x;
1173                 break;
1174
1175         case PRISM2_PARAM_CTS_PROTECT_ERP_FRAMES:
1176                 *param = sdata->use_protection;
1177                 break;
1178
1179         case PRISM2_PARAM_PREAMBLE:
1180                 *param = local->short_preamble;
1181                 break;
1182
1183         case PRISM2_PARAM_STAT_TIME:
1184                 *param = local->stat_time;
1185                 break;
1186         case PRISM2_PARAM_SHORT_SLOT_TIME:
1187                 *param = !!(local->hw.conf.flags & IEEE80211_CONF_SHORT_SLOT_TIME);
1188                 break;
1189
1190         case PRISM2_PARAM_NEXT_MODE:
1191                 *param = local->next_mode;
1192                 break;
1193
1194         case PRISM2_PARAM_ANTENNA_MODE:
1195                 *param = local->hw.conf.antenna_mode;
1196                 break;
1197
1198         case PRISM2_PARAM_STA_ANTENNA_SEL:
1199                 *param = local->sta_antenna_sel;
1200                 break;
1201
1202         case PRISM2_PARAM_TX_POWER_REDUCTION:
1203                 *param = local->hw.conf.tx_power_reduction;
1204                 break;
1205
1206         case PRISM2_PARAM_KEY_TX_RX_THRESHOLD:
1207                 *param = local->key_tx_rx_threshold;
1208                 break;
1209
1210         case PRISM2_PARAM_DEFAULT_WEP_ONLY:
1211                 *param = local->default_wep_only;
1212                 break;
1213
1214         case PRISM2_PARAM_WIFI_WME_NOACK_TEST:
1215                 *param = local->wifi_wme_noack_test;
1216                 break;
1217
1218         case PRISM2_PARAM_SCAN_FLAGS:
1219                 *param = local->scan_flags;
1220                 break;
1221
1222         case PRISM2_PARAM_HW_MODES:
1223                 *param = local->enabled_modes;
1224                 break;
1225
1226         case PRISM2_PARAM_CREATE_IBSS:
1227                 if (sdata->type != IEEE80211_IF_TYPE_IBSS)
1228                         ret = -EINVAL;
1229                 else
1230                         *param = !!sdata->u.sta.create_ibss;
1231                 break;
1232
1233         case PRISM2_PARAM_MIXED_CELL:
1234                 if (sdata->type != IEEE80211_IF_TYPE_STA &&
1235                     sdata->type != IEEE80211_IF_TYPE_IBSS)
1236                         ret = -EINVAL;
1237                 else
1238                         *param = !!sdata->u.sta.mixed_cell;
1239                 break;
1240         case PRISM2_PARAM_WMM_ENABLED:
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.wmm_enabled;
1246                 break;
1247         default:
1248                 ret = -EOPNOTSUPP;
1249                 break;
1250         }
1251
1252         return ret;
1253 }
1254
1255 static int ieee80211_ioctl_siwmlme(struct net_device *dev,
1256                                    struct iw_request_info *info,
1257                                    struct iw_point *data, char *extra)
1258 {
1259         struct ieee80211_sub_if_data *sdata;
1260         struct iw_mlme *mlme = (struct iw_mlme *) extra;
1261
1262         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1263         if (sdata->type != IEEE80211_IF_TYPE_STA &&
1264             sdata->type != IEEE80211_IF_TYPE_IBSS)
1265                 return -EINVAL;
1266
1267         switch (mlme->cmd) {
1268         case IW_MLME_DEAUTH:
1269                 /* TODO: mlme->addr.sa_data */
1270                 return ieee80211_sta_deauthenticate(dev, mlme->reason_code);
1271         case IW_MLME_DISASSOC:
1272                 /* TODO: mlme->addr.sa_data */
1273                 return ieee80211_sta_disassociate(dev, mlme->reason_code);
1274         default:
1275                 return -EOPNOTSUPP;
1276         }
1277 }
1278
1279
1280 static int ieee80211_ioctl_siwencode(struct net_device *dev,
1281                                      struct iw_request_info *info,
1282                                      struct iw_point *erq, char *keybuf)
1283 {
1284         struct ieee80211_sub_if_data *sdata;
1285         int idx, i, alg = ALG_WEP;
1286         u8 bcaddr[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
1287
1288         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1289
1290         idx = erq->flags & IW_ENCODE_INDEX;
1291         if (idx == 0) {
1292                 if (sdata->default_key)
1293                         for (i = 0; i < NUM_DEFAULT_KEYS; i++) {
1294                                 if (sdata->default_key == sdata->keys[i]) {
1295                                         idx = i;
1296                                         break;
1297                                 }
1298                         }
1299         } else if (idx < 1 || idx > 4)
1300                 return -EINVAL;
1301         else
1302                 idx--;
1303
1304         if (erq->flags & IW_ENCODE_DISABLED)
1305                 alg = ALG_NONE;
1306         else if (erq->length == 0) {
1307                 /* No key data - just set the default TX key index */
1308                 if (sdata->default_key != sdata->keys[idx]) {
1309                         ieee80211_debugfs_key_remove_default(sdata);
1310                         sdata->default_key = sdata->keys[idx];
1311                         if (sdata->default_key)
1312                                 ieee80211_debugfs_key_add_default(sdata);
1313                 }
1314                 return 0;
1315         }
1316
1317         return ieee80211_set_encryption(
1318                 dev, bcaddr,
1319                 idx, alg,
1320                 !sdata->default_key,
1321                 keybuf, erq->length);
1322 }
1323
1324
1325 static int ieee80211_ioctl_giwencode(struct net_device *dev,
1326                                      struct iw_request_info *info,
1327                                      struct iw_point *erq, char *key)
1328 {
1329         struct ieee80211_sub_if_data *sdata;
1330         int idx, i;
1331
1332         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1333
1334         idx = erq->flags & IW_ENCODE_INDEX;
1335         if (idx < 1 || idx > 4) {
1336                 idx = -1;
1337                 if (!sdata->default_key)
1338                         idx = 0;
1339                 else for (i = 0; i < NUM_DEFAULT_KEYS; i++) {
1340                         if (sdata->default_key == sdata->keys[i]) {
1341                                 idx = i;
1342                                 break;
1343                         }
1344                 }
1345                 if (idx < 0)
1346                         return -EINVAL;
1347         } else
1348                 idx--;
1349
1350         erq->flags = idx + 1;
1351
1352         if (!sdata->keys[idx]) {
1353                 erq->length = 0;
1354                 erq->flags |= IW_ENCODE_DISABLED;
1355                 return 0;
1356         }
1357
1358         memcpy(key, sdata->keys[idx]->key,
1359                min((int)erq->length, sdata->keys[idx]->keylen));
1360         erq->length = sdata->keys[idx]->keylen;
1361         erq->flags |= IW_ENCODE_ENABLED;
1362
1363         return 0;
1364 }
1365
1366 static int ieee80211_ioctl_siwauth(struct net_device *dev,
1367                                    struct iw_request_info *info,
1368                                    struct iw_param *data, char *extra)
1369 {
1370         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1371         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1372         int ret = 0;
1373
1374         switch (data->flags & IW_AUTH_INDEX) {
1375         case IW_AUTH_WPA_VERSION:
1376         case IW_AUTH_CIPHER_PAIRWISE:
1377         case IW_AUTH_CIPHER_GROUP:
1378         case IW_AUTH_WPA_ENABLED:
1379         case IW_AUTH_RX_UNENCRYPTED_EAPOL:
1380                 break;
1381         case IW_AUTH_KEY_MGMT:
1382                 if (sdata->type != IEEE80211_IF_TYPE_STA)
1383                         ret = -EINVAL;
1384                 else {
1385                         /*
1386                          * TODO: sdata->u.sta.key_mgmt does not match with WE18
1387                          * value completely; could consider modifying this to
1388                          * be closer to WE18. For now, this value is not really
1389                          * used for anything else than Privacy matching, so the
1390                          * current code here should be more or less OK.
1391                          */
1392                         if (data->value & IW_AUTH_KEY_MGMT_802_1X) {
1393                                 sdata->u.sta.key_mgmt =
1394                                         IEEE80211_KEY_MGMT_WPA_EAP;
1395                         } else if (data->value & IW_AUTH_KEY_MGMT_PSK) {
1396                                 sdata->u.sta.key_mgmt =
1397                                         IEEE80211_KEY_MGMT_WPA_PSK;
1398                         } else {
1399                                 sdata->u.sta.key_mgmt =
1400                                         IEEE80211_KEY_MGMT_NONE;
1401                         }
1402                 }
1403                 break;
1404         case IW_AUTH_80211_AUTH_ALG:
1405                 if (sdata->type == IEEE80211_IF_TYPE_STA ||
1406                     sdata->type == IEEE80211_IF_TYPE_IBSS)
1407                         sdata->u.sta.auth_algs = data->value;
1408                 else
1409                         ret = -EOPNOTSUPP;
1410                 break;
1411         case IW_AUTH_PRIVACY_INVOKED:
1412                 if (local->ops->set_privacy_invoked)
1413                         ret = local->ops->set_privacy_invoked(
1414                                         local_to_hw(local), data->value);
1415                 break;
1416         default:
1417                 ret = -EOPNOTSUPP;
1418                 break;
1419         }
1420         return ret;
1421 }
1422
1423 /* Get wireless statistics.  Called by /proc/net/wireless and by SIOCGIWSTATS */
1424 static struct iw_statistics *ieee80211_get_wireless_stats(struct net_device *dev)
1425 {
1426         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1427         struct iw_statistics *wstats = &local->wstats;
1428         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1429         struct sta_info *sta = NULL;
1430
1431         if (sdata->type == IEEE80211_IF_TYPE_STA ||
1432             sdata->type == IEEE80211_IF_TYPE_IBSS)
1433                 sta = sta_info_get(local, sdata->u.sta.bssid);
1434         if (!sta) {
1435                 wstats->discard.fragment = 0;
1436                 wstats->discard.misc = 0;
1437                 wstats->qual.qual = 0;
1438                 wstats->qual.level = 0;
1439                 wstats->qual.noise = 0;
1440                 wstats->qual.updated = IW_QUAL_ALL_INVALID;
1441         } else {
1442                 wstats->qual.level = sta->last_rssi;
1443                 wstats->qual.qual = sta->last_signal;
1444                 wstats->qual.noise = sta->last_noise;
1445                 wstats->qual.updated = local->wstats_flags;
1446                 sta_info_put(sta);
1447         }
1448         return wstats;
1449 }
1450
1451 static int ieee80211_ioctl_giwauth(struct net_device *dev,
1452                                    struct iw_request_info *info,
1453                                    struct iw_param *data, char *extra)
1454 {
1455         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1456         int ret = 0;
1457
1458         switch (data->flags & IW_AUTH_INDEX) {
1459         case IW_AUTH_80211_AUTH_ALG:
1460                 if (sdata->type == IEEE80211_IF_TYPE_STA ||
1461                     sdata->type == IEEE80211_IF_TYPE_IBSS)
1462                         data->value = sdata->u.sta.auth_algs;
1463                 else
1464                         ret = -EOPNOTSUPP;
1465                 break;
1466         default:
1467                 ret = -EOPNOTSUPP;
1468                 break;
1469         }
1470         return ret;
1471 }
1472
1473
1474 static int ieee80211_ioctl_siwencodeext(struct net_device *dev,
1475                                         struct iw_request_info *info,
1476                                         struct iw_point *erq, char *extra)
1477 {
1478         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1479         struct iw_encode_ext *ext = (struct iw_encode_ext *) extra;
1480         int alg, idx, i;
1481
1482         switch (ext->alg) {
1483         case IW_ENCODE_ALG_NONE:
1484                 alg = ALG_NONE;
1485                 break;
1486         case IW_ENCODE_ALG_WEP:
1487                 alg = ALG_WEP;
1488                 break;
1489         case IW_ENCODE_ALG_TKIP:
1490                 alg = ALG_TKIP;
1491                 break;
1492         case IW_ENCODE_ALG_CCMP:
1493                 alg = ALG_CCMP;
1494                 break;
1495         default:
1496                 return -EOPNOTSUPP;
1497         }
1498
1499         if (erq->flags & IW_ENCODE_DISABLED)
1500                 alg = ALG_NONE;
1501
1502         idx = erq->flags & IW_ENCODE_INDEX;
1503         if (idx < 1 || idx > 4) {
1504                 idx = -1;
1505                 if (!sdata->default_key)
1506                         idx = 0;
1507                 else for (i = 0; i < NUM_DEFAULT_KEYS; i++) {
1508                         if (sdata->default_key == sdata->keys[i]) {
1509                                 idx = i;
1510                                 break;
1511                         }
1512                 }
1513                 if (idx < 0)
1514                         return -EINVAL;
1515         } else
1516                 idx--;
1517
1518         return ieee80211_set_encryption(dev, ext->addr.sa_data, idx, alg,
1519                                         ext->ext_flags &
1520                                         IW_ENCODE_EXT_SET_TX_KEY,
1521                                         ext->key, ext->key_len);
1522 }
1523
1524
1525 static const struct iw_priv_args ieee80211_ioctl_priv[] = {
1526         { PRISM2_IOCTL_PRISM2_PARAM,
1527           IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 2, 0, "param" },
1528         { PRISM2_IOCTL_GET_PRISM2_PARAM,
1529           IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
1530           IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "get_param" },
1531 };
1532
1533 /* Structures to export the Wireless Handlers */
1534
1535 static const iw_handler ieee80211_handler[] =
1536 {
1537         (iw_handler) NULL,                              /* SIOCSIWCOMMIT */
1538         (iw_handler) ieee80211_ioctl_giwname,           /* SIOCGIWNAME */
1539         (iw_handler) NULL,                              /* SIOCSIWNWID */
1540         (iw_handler) NULL,                              /* SIOCGIWNWID */
1541         (iw_handler) ieee80211_ioctl_siwfreq,           /* SIOCSIWFREQ */
1542         (iw_handler) ieee80211_ioctl_giwfreq,           /* SIOCGIWFREQ */
1543         (iw_handler) ieee80211_ioctl_siwmode,           /* SIOCSIWMODE */
1544         (iw_handler) ieee80211_ioctl_giwmode,           /* SIOCGIWMODE */
1545         (iw_handler) NULL,                              /* SIOCSIWSENS */
1546         (iw_handler) NULL,                              /* SIOCGIWSENS */
1547         (iw_handler) NULL /* not used */,               /* SIOCSIWRANGE */
1548         (iw_handler) ieee80211_ioctl_giwrange,          /* SIOCGIWRANGE */
1549         (iw_handler) NULL /* not used */,               /* SIOCSIWPRIV */
1550         (iw_handler) NULL /* kernel code */,            /* SIOCGIWPRIV */
1551         (iw_handler) NULL /* not used */,               /* SIOCSIWSTATS */
1552         (iw_handler) NULL /* kernel code */,            /* SIOCGIWSTATS */
1553         iw_handler_set_spy,                             /* SIOCSIWSPY */
1554         iw_handler_get_spy,                             /* SIOCGIWSPY */
1555         iw_handler_set_thrspy,                          /* SIOCSIWTHRSPY */
1556         iw_handler_get_thrspy,                          /* SIOCGIWTHRSPY */
1557         (iw_handler) ieee80211_ioctl_siwap,             /* SIOCSIWAP */
1558         (iw_handler) ieee80211_ioctl_giwap,             /* SIOCGIWAP */
1559         (iw_handler) ieee80211_ioctl_siwmlme,           /* SIOCSIWMLME */
1560         (iw_handler) NULL,                              /* SIOCGIWAPLIST */
1561         (iw_handler) ieee80211_ioctl_siwscan,           /* SIOCSIWSCAN */
1562         (iw_handler) ieee80211_ioctl_giwscan,           /* SIOCGIWSCAN */
1563         (iw_handler) ieee80211_ioctl_siwessid,          /* SIOCSIWESSID */
1564         (iw_handler) ieee80211_ioctl_giwessid,          /* SIOCGIWESSID */
1565         (iw_handler) NULL,                              /* SIOCSIWNICKN */
1566         (iw_handler) NULL,                              /* SIOCGIWNICKN */
1567         (iw_handler) NULL,                              /* -- hole -- */
1568         (iw_handler) NULL,                              /* -- hole -- */
1569         (iw_handler) ieee80211_ioctl_siwrate,           /* SIOCSIWRATE */
1570         (iw_handler) ieee80211_ioctl_giwrate,           /* SIOCGIWRATE */
1571         (iw_handler) ieee80211_ioctl_siwrts,            /* SIOCSIWRTS */
1572         (iw_handler) ieee80211_ioctl_giwrts,            /* SIOCGIWRTS */
1573         (iw_handler) ieee80211_ioctl_siwfrag,           /* SIOCSIWFRAG */
1574         (iw_handler) ieee80211_ioctl_giwfrag,           /* SIOCGIWFRAG */
1575         (iw_handler) NULL,                              /* SIOCSIWTXPOW */
1576         (iw_handler) NULL,                              /* SIOCGIWTXPOW */
1577         (iw_handler) ieee80211_ioctl_siwretry,          /* SIOCSIWRETRY */
1578         (iw_handler) ieee80211_ioctl_giwretry,          /* SIOCGIWRETRY */
1579         (iw_handler) ieee80211_ioctl_siwencode,         /* SIOCSIWENCODE */
1580         (iw_handler) ieee80211_ioctl_giwencode,         /* SIOCGIWENCODE */
1581         (iw_handler) NULL,                              /* SIOCSIWPOWER */
1582         (iw_handler) NULL,                              /* SIOCGIWPOWER */
1583         (iw_handler) NULL,                              /* -- hole -- */
1584         (iw_handler) NULL,                              /* -- hole -- */
1585         (iw_handler) ieee80211_ioctl_siwgenie,          /* SIOCSIWGENIE */
1586         (iw_handler) NULL,                              /* SIOCGIWGENIE */
1587         (iw_handler) ieee80211_ioctl_siwauth,           /* SIOCSIWAUTH */
1588         (iw_handler) ieee80211_ioctl_giwauth,           /* SIOCGIWAUTH */
1589         (iw_handler) ieee80211_ioctl_siwencodeext,      /* SIOCSIWENCODEEXT */
1590         (iw_handler) NULL,                              /* SIOCGIWENCODEEXT */
1591         (iw_handler) NULL,                              /* SIOCSIWPMKSA */
1592         (iw_handler) NULL,                              /* -- hole -- */
1593 };
1594
1595 static const iw_handler ieee80211_private_handler[] =
1596 {                                                       /* SIOCIWFIRSTPRIV + */
1597         (iw_handler) ieee80211_ioctl_prism2_param,      /* 0 */
1598         (iw_handler) ieee80211_ioctl_get_prism2_param,  /* 1 */
1599 };
1600
1601 const struct iw_handler_def ieee80211_iw_handler_def =
1602 {
1603         .num_standard   = ARRAY_SIZE(ieee80211_handler),
1604         .num_private    = ARRAY_SIZE(ieee80211_private_handler),
1605         .num_private_args = ARRAY_SIZE(ieee80211_ioctl_priv),
1606         .standard       = (iw_handler *) ieee80211_handler,
1607         .private        = (iw_handler *) ieee80211_private_handler,
1608         .private_args   = (struct iw_priv_args *) ieee80211_ioctl_priv,
1609         .get_wireless_stats = ieee80211_get_wireless_stats,
1610 };