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.flags &= ~IEEE80211_STA_AUTO_BSSID_SEL;
 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_giwname(struct net_device *dev,
 291                                    struct iw_request_info *info,
 292                                    char *name, char *extra)
 293 {
 294         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 295
 296         switch (local->hw.conf.phymode) {
 297         case MODE_IEEE80211A:
 298                 strcpy(name, "IEEE 802.11a");
 299                 break;
 300         case MODE_IEEE80211B:
 301                 strcpy(name, "IEEE 802.11b");
 302                 break;
 303         case MODE_IEEE80211G:
 304                 strcpy(name, "IEEE 802.11g");
 305                 break;
 306         case MODE_ATHEROS_TURBO:
 307                 strcpy(name, "5GHz Turbo");
 308                 break;
 309         default:
 310                 strcpy(name, "IEEE 802.11");
 311                 break;
 312         }
 313
 314         return 0;
 315 }
 316
 317
 318 static int ieee80211_ioctl_giwrange(struct net_device *dev,
 319                                  struct iw_request_info *info,
 320                                  struct iw_point *data, char *extra)
 321 {
 322         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 323         struct iw_range *range = (struct iw_range *) extra;
 324         struct ieee80211_hw_mode *mode = NULL;
 325         int c = 0;
 326
 327         data->length = sizeof(struct iw_range);
 328         memset(range, 0, sizeof(struct iw_range));
 329
 330         range->we_version_compiled = WIRELESS_EXT;
 331         range->we_version_source = 21;
 332         range->retry_capa = IW_RETRY_LIMIT;
 333         range->retry_flags = IW_RETRY_LIMIT;
 334         range->min_retry = 0;
 335         range->max_retry = 255;
 336         range->min_rts = 0;
 337         range->max_rts = 2347;
 338         range->min_frag = 256;
 339         range->max_frag = 2346;
 340
 341         range->encoding_size[0] = 5;
 342         range->encoding_size[1] = 13;
 343         range->num_encoding_sizes = 2;
 344         range->max_encoding_tokens = NUM_DEFAULT_KEYS;
 345
 346         range->max_qual.qual = local->hw.max_signal;
 347         range->max_qual.level = local->hw.max_rssi;
 348         range->max_qual.noise = local->hw.max_noise;
 349         range->max_qual.updated = local->wstats_flags;
 350
 351         range->avg_qual.qual = local->hw.max_signal/2;
 352         range->avg_qual.level = 0;
 353         range->avg_qual.noise = 0;
 354         range->avg_qual.updated = local->wstats_flags;
 355
 356         range->enc_capa = IW_ENC_CAPA_WPA | IW_ENC_CAPA_WPA2 |
 357                           IW_ENC_CAPA_CIPHER_TKIP | IW_ENC_CAPA_CIPHER_CCMP;
 358
 359         list_for_each_entry(mode, &local->modes_list, list) {
 360                 int i = 0;
 361
 362                 if (!(local->enabled_modes & (1 << mode->mode)) ||
 363                     (local->hw_modes & local->enabled_modes &
 364                      (1 << MODE_IEEE80211G) && mode->mode == MODE_IEEE80211B))
 365                         continue;
 366
 367                 while (i < mode->num_channels && c < IW_MAX_FREQUENCIES) {
 368                         struct ieee80211_channel *chan = &mode->channels[i];
 369
 370                         if (chan->flag & IEEE80211_CHAN_W_SCAN) {
 371                                 range->freq[c].i = chan->chan;
 372                                 range->freq[c].m = chan->freq * 100000;
 373                                 range->freq[c].e = 1;
 374                                 c++;
 375                         }
 376                         i++;
 377                 }
 378         }
 379         range->num_channels = c;
 380         range->num_frequency = c;
 381
 382         IW_EVENT_CAPA_SET_KERNEL(range->event_capa);
 383         IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWTHRSPY);
 384         IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWAP);
 385         IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWSCAN);
 386
 387         return 0;
 388 }
 389
 390
 391 static int ieee80211_ioctl_siwmode(struct net_device *dev,
 392                                    struct iw_request_info *info,
 393                                    __u32 *mode, char *extra)
 394 {
 395         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 396         int type;
 397
 398         if (sdata->type == IEEE80211_IF_TYPE_VLAN)
 399                 return -EOPNOTSUPP;
 400
 401         switch (*mode) {
 402         case IW_MODE_INFRA:
 403                 type = IEEE80211_IF_TYPE_STA;
 404                 break;
 405         case IW_MODE_ADHOC:
 406                 type = IEEE80211_IF_TYPE_IBSS;
 407                 break;
 408         case IW_MODE_MONITOR:
 409                 type = IEEE80211_IF_TYPE_MNTR;
 410                 break;
 411         default:
 412                 return -EINVAL;
 413         }
 414
 415         if (type == sdata->type)
 416                 return 0;
 417         if (netif_running(dev))
 418                 return -EBUSY;
 419
 420         ieee80211_if_reinit(dev);
 421         ieee80211_if_set_type(dev, type);
 422
 423         return 0;
 424 }
 425
 426
 427 static int ieee80211_ioctl_giwmode(struct net_device *dev,
 428                                    struct iw_request_info *info,
 429                                    __u32 *mode, char *extra)
 430 {
 431         struct ieee80211_sub_if_data *sdata;
 432
 433         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 434         switch (sdata->type) {
 435         case IEEE80211_IF_TYPE_AP:
 436                 *mode = IW_MODE_MASTER;
 437                 break;
 438         case IEEE80211_IF_TYPE_STA:
 439                 *mode = IW_MODE_INFRA;
 440                 break;
 441         case IEEE80211_IF_TYPE_IBSS:
 442                 *mode = IW_MODE_ADHOC;
 443                 break;
 444         case IEEE80211_IF_TYPE_MNTR:
 445                 *mode = IW_MODE_MONITOR;
 446                 break;
 447         case IEEE80211_IF_TYPE_WDS:
 448                 *mode = IW_MODE_REPEAT;
 449                 break;
 450         case IEEE80211_IF_TYPE_VLAN:
 451                 *mode = IW_MODE_SECOND;         /* FIXME */
 452                 break;
 453         default:
 454                 *mode = IW_MODE_AUTO;
 455                 break;
 456         }
 457         return 0;
 458 }
 459
 460 int ieee80211_set_channel(struct ieee80211_local *local, int channel, int freq)
 461 {
 462         struct ieee80211_hw_mode *mode;
 463         int c, set = 0;
 464         int ret = -EINVAL;
 465
 466         list_for_each_entry(mode, &local->modes_list, list) {
 467                 if (!(local->enabled_modes & (1 << mode->mode)))
 468                         continue;
 469                 for (c = 0; c < mode->num_channels; c++) {
 470                         struct ieee80211_channel *chan = &mode->channels[c];
 471                         if (chan->flag & IEEE80211_CHAN_W_SCAN &&
 472                             ((chan->chan == channel) || (chan->freq == freq))) {
 473                                 /* Use next_mode as the mode preference to
 474                                  * resolve non-unique channel numbers. */
 475                                 if (set && mode->mode != local->next_mode)
 476                                         continue;
 477
 478                                 local->oper_channel = chan;
 479                                 local->oper_hw_mode = mode;
 480                                 set++;
 481                         }
 482                 }
 483         }
 484
 485         if (set) {
 486                 if (local->sta_scanning)
 487                         ret = 0;
 488                 else
 489                         ret = ieee80211_hw_config(local);
 490
 491                 rate_control_clear(local);
 492         }
 493
 494         return ret;
 495 }
 496
 497 static int ieee80211_ioctl_siwfreq(struct net_device *dev,
 498                                    struct iw_request_info *info,
 499                                    struct iw_freq *freq, char *extra)
 500 {
 501         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 502         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 503
 504         if (sdata->type == IEEE80211_IF_TYPE_STA)
 505                 sdata->u.sta.flags &= ~IEEE80211_STA_AUTO_CHANNEL_SEL;
 506
 507         /* freq->e == 0: freq->m = channel; otherwise freq = m * 10^e */
 508         if (freq->e == 0) {
 509                 if (freq->m < 0) {
 510                         if (sdata->type == IEEE80211_IF_TYPE_STA)
 511                                 sdata->u.sta.flags |=
 512                                         IEEE80211_STA_AUTO_CHANNEL_SEL;
 513                         return 0;
 514                 } else
 515                         return ieee80211_set_channel(local, freq->m, -1);
 516         } else {
 517                 int i, div = 1000000;
 518                 for (i = 0; i < freq->e; i++)
 519                         div /= 10;
 520                 if (div > 0)
 521                         return ieee80211_set_channel(local, -1, freq->m / div);
 522                 else
 523                         return -EINVAL;
 524         }
 525 }
 526
 527
 528 static int ieee80211_ioctl_giwfreq(struct net_device *dev,
 529                                    struct iw_request_info *info,
 530                                    struct iw_freq *freq, char *extra)
 531 {
 532         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 533
 534         /* TODO: in station mode (Managed/Ad-hoc) might need to poll low-level
 535          * driver for the current channel with firmware-based management */
 536
 537         freq->m = local->hw.conf.freq;
 538         freq->e = 6;
 539
 540         return 0;
 541 }
 542
 543
 544 static int ieee80211_ioctl_siwessid(struct net_device *dev,
 545                                     struct iw_request_info *info,
 546                                     struct iw_point *data, char *ssid)
 547 {
 548         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 549         struct ieee80211_sub_if_data *sdata;
 550         size_t len = data->length;
 551
 552         /* iwconfig uses nul termination in SSID.. */
 553         if (len > 0 && ssid[len - 1] == '\0')
 554                 len--;
 555
 556         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 557         if (sdata->type == IEEE80211_IF_TYPE_STA ||
 558             sdata->type == IEEE80211_IF_TYPE_IBSS) {
 559                 int ret;
 560                 if (local->user_space_mlme) {
 561                         if (len > IEEE80211_MAX_SSID_LEN)
 562                                 return -EINVAL;
 563                         memcpy(sdata->u.sta.ssid, ssid, len);
 564                         sdata->u.sta.ssid_len = len;
 565                         return 0;
 566                 }
 567                 if (data->flags)
 568                         sdata->u.sta.flags &= ~IEEE80211_STA_AUTO_SSID_SEL;
 569                 else
 570                         sdata->u.sta.flags |= IEEE80211_STA_AUTO_SSID_SEL;
 571                 ret = ieee80211_sta_set_ssid(dev, ssid, len);
 572                 if (ret)
 573                         return ret;
 574                 ieee80211_sta_req_auth(dev, &sdata->u.sta);
 575                 return 0;
 576         }
 577
 578         if (sdata->type == IEEE80211_IF_TYPE_AP) {
 579                 memcpy(sdata->u.ap.ssid, ssid, len);
 580                 memset(sdata->u.ap.ssid + len, 0,
 581                        IEEE80211_MAX_SSID_LEN - len);
 582                 sdata->u.ap.ssid_len = len;
 583                 return ieee80211_if_config(dev);
 584         }
 585         return -EOPNOTSUPP;
 586 }
 587
 588
 589 static int ieee80211_ioctl_giwessid(struct net_device *dev,
 590                                     struct iw_request_info *info,
 591                                     struct iw_point *data, char *ssid)
 592 {
 593         size_t len;
 594
 595         struct ieee80211_sub_if_data *sdata;
 596         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 597         if (sdata->type == IEEE80211_IF_TYPE_STA ||
 598             sdata->type == IEEE80211_IF_TYPE_IBSS) {
 599                 int res = ieee80211_sta_get_ssid(dev, ssid, &len);
 600                 if (res == 0) {
 601                         data->length = len;
 602                         data->flags = 1;
 603                 } else
 604                         data->flags = 0;
 605                 return res;
 606         }
 607
 608         if (sdata->type == IEEE80211_IF_TYPE_AP) {
 609                 len = sdata->u.ap.ssid_len;
 610                 if (len > IW_ESSID_MAX_SIZE)
 611                         len = IW_ESSID_MAX_SIZE;
 612                 memcpy(ssid, sdata->u.ap.ssid, len);
 613                 data->length = len;
 614                 data->flags = 1;
 615                 return 0;
 616         }
 617         return -EOPNOTSUPP;
 618 }
 619
 620
 621 static int ieee80211_ioctl_siwap(struct net_device *dev,
 622                                  struct iw_request_info *info,
 623                                  struct sockaddr *ap_addr, char *extra)
 624 {
 625         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 626         struct ieee80211_sub_if_data *sdata;
 627
 628         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 629         if (sdata->type == IEEE80211_IF_TYPE_STA ||
 630             sdata->type == IEEE80211_IF_TYPE_IBSS) {
 631                 int ret;
 632                 if (local->user_space_mlme) {
 633                         memcpy(sdata->u.sta.bssid, (u8 *) &ap_addr->sa_data,
 634                                ETH_ALEN);
 635                         return 0;
 636                 }
 637                 if (is_zero_ether_addr((u8 *) &ap_addr->sa_data))
 638                         sdata->u.sta.flags |= IEEE80211_STA_AUTO_BSSID_SEL |
 639                                 IEEE80211_STA_AUTO_CHANNEL_SEL;
 640                 else if (is_broadcast_ether_addr((u8 *) &ap_addr->sa_data))
 641                         sdata->u.sta.flags |= IEEE80211_STA_AUTO_BSSID_SEL;
 642                 else
 643                         sdata->u.sta.flags &= ~IEEE80211_STA_AUTO_BSSID_SEL;
 644                 ret = ieee80211_sta_set_bssid(dev, (u8 *) &ap_addr->sa_data);
 645                 if (ret)
 646                         return ret;
 647                 ieee80211_sta_req_auth(dev, &sdata->u.sta);
 648                 return 0;
 649         } else if (sdata->type == IEEE80211_IF_TYPE_WDS) {
 650                 if (memcmp(sdata->u.wds.remote_addr, (u8 *) &ap_addr->sa_data,
 651                            ETH_ALEN) == 0)
 652                         return 0;
 653                 return ieee80211_if_update_wds(dev, (u8 *) &ap_addr->sa_data);
 654         }
 655
 656         return -EOPNOTSUPP;
 657 }
 658
 659
 660 static int ieee80211_ioctl_giwap(struct net_device *dev,
 661                                  struct iw_request_info *info,
 662                                  struct sockaddr *ap_addr, char *extra)
 663 {
 664         struct ieee80211_sub_if_data *sdata;
 665
 666         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 667         if (sdata->type == IEEE80211_IF_TYPE_STA ||
 668             sdata->type == IEEE80211_IF_TYPE_IBSS) {
 669                 ap_addr->sa_family = ARPHRD_ETHER;
 670                 memcpy(&ap_addr->sa_data, sdata->u.sta.bssid, ETH_ALEN);
 671                 return 0;
 672         } else if (sdata->type == IEEE80211_IF_TYPE_WDS) {
 673                 ap_addr->sa_family = ARPHRD_ETHER;
 674                 memcpy(&ap_addr->sa_data, sdata->u.wds.remote_addr, ETH_ALEN);
 675                 return 0;
 676         }
 677
 678         return -EOPNOTSUPP;
 679 }
 680
 681
 682 static int ieee80211_ioctl_siwscan(struct net_device *dev,
 683                                    struct iw_request_info *info,
 684                                    struct iw_point *data, char *extra)
 685 {
 686         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 687         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 688         u8 *ssid = NULL;
 689         size_t ssid_len = 0;
 690
 691         if (!netif_running(dev))
 692                 return -ENETDOWN;
 693
 694         switch (sdata->type) {
 695         case IEEE80211_IF_TYPE_STA:
 696         case IEEE80211_IF_TYPE_IBSS:
 697                 if (local->scan_flags & IEEE80211_SCAN_MATCH_SSID) {
 698                         ssid = sdata->u.sta.ssid;
 699                         ssid_len = sdata->u.sta.ssid_len;
 700                 }
 701                 break;
 702         case IEEE80211_IF_TYPE_AP:
 703                 if (local->scan_flags & IEEE80211_SCAN_MATCH_SSID) {
 704                         ssid = sdata->u.ap.ssid;
 705                         ssid_len = sdata->u.ap.ssid_len;
 706                 }
 707                 break;
 708         default:
 709                 return -EOPNOTSUPP;
 710         }
 711
 712         return ieee80211_sta_req_scan(dev, ssid, ssid_len);
 713 }
 714
 715
 716 static int ieee80211_ioctl_giwscan(struct net_device *dev,
 717                                    struct iw_request_info *info,
 718                                    struct iw_point *data, char *extra)
 719 {
 720         int res;
 721         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 722         if (local->sta_scanning)
 723                 return -EAGAIN;
 724         res = ieee80211_sta_scan_results(dev, extra, data->length);
 725         if (res >= 0) {
 726                 data->length = res;
 727                 return 0;
 728         }
 729         data->length = 0;
 730         return res;
 731 }
 732
 733
 734 static int ieee80211_ioctl_siwrate(struct net_device *dev,
 735                                   struct iw_request_info *info,
 736                                   struct iw_param *rate, char *extra)
 737 {
 738         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 739         struct ieee80211_hw_mode *mode;
 740         int i;
 741         u32 target_rate = rate->value / 100000;
 742         struct ieee80211_sub_if_data *sdata;
 743
 744         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 745         if (!sdata->bss)
 746                 return -ENODEV;
 747         mode = local->oper_hw_mode;
 748         /* target_rate = -1, rate->fixed = 0 means auto only, so use all rates
 749          * target_rate = X, rate->fixed = 1 means only rate X
 750          * target_rate = X, rate->fixed = 0 means all rates <= X */
 751         sdata->bss->max_ratectrl_rateidx = -1;
 752         sdata->bss->force_unicast_rateidx = -1;
 753         if (rate->value < 0)
 754                 return 0;
 755         for (i=0; i< mode->num_rates; i++) {
 756                 struct ieee80211_rate *rates = &mode->rates[i];
 757                 int this_rate = rates->rate;
 758
 759                 if (mode->mode == MODE_ATHEROS_TURBO ||
 760                     mode->mode == MODE_ATHEROS_TURBOG)
 761                         this_rate *= 2;
 762                 if (target_rate == this_rate) {
 763                         sdata->bss->max_ratectrl_rateidx = i;
 764                         if (rate->fixed)
 765                                 sdata->bss->force_unicast_rateidx = i;
 766                         break;
 767                 }
 768         }
 769         return 0;
 770 }
 771
 772 static int ieee80211_ioctl_giwrate(struct net_device *dev,
 773                                   struct iw_request_info *info,
 774                                   struct iw_param *rate, char *extra)
 775 {
 776         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 777         struct sta_info *sta;
 778         struct ieee80211_sub_if_data *sdata;
 779
 780         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 781         if (sdata->type == IEEE80211_IF_TYPE_STA)
 782                 sta = sta_info_get(local, sdata->u.sta.bssid);
 783         else
 784                 return -EOPNOTSUPP;
 785         if (!sta)
 786                 return -ENODEV;
 787         if (sta->txrate < local->oper_hw_mode->num_rates)
 788                 rate->value = local->oper_hw_mode->rates[sta->txrate].rate * 100000;
 789         else
 790                 rate->value = 0;
 791         sta_info_put(sta);
 792         return 0;
 793 }
 794
 795 static int ieee80211_ioctl_giwtxpower(struct net_device *dev,
 796                                    struct iw_request_info *info,
 797                                    union iwreq_data *data, char *extra)
 798 {
 799         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 800
 801         data->txpower.fixed = 1;
 802         data->txpower.disabled = !(local->hw.conf.radio_enabled);
 803         data->txpower.value = local->hw.conf.power_level;
 804         data->txpower.flags = IW_TXPOW_DBM;
 805
 806         return 0;
 807 }
 808
 809 static int ieee80211_ioctl_siwrts(struct net_device *dev,
 810                                   struct iw_request_info *info,
 811                                   struct iw_param *rts, char *extra)
 812 {
 813         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 814
 815         if (rts->disabled)
 816                 local->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
 817         else if (rts->value < 0 || rts->value > IEEE80211_MAX_RTS_THRESHOLD)
 818                 return -EINVAL;
 819         else
 820                 local->rts_threshold = rts->value;
 821
 822         /* If the wlan card performs RTS/CTS in hardware/firmware,
 823          * configure it here */
 824
 825         if (local->ops->set_rts_threshold)
 826                 local->ops->set_rts_threshold(local_to_hw(local),
 827                                              local->rts_threshold);
 828
 829         return 0;
 830 }
 831
 832 static int ieee80211_ioctl_giwrts(struct net_device *dev,
 833                                   struct iw_request_info *info,
 834                                   struct iw_param *rts, char *extra)
 835 {
 836         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 837
 838         rts->value = local->rts_threshold;
 839         rts->disabled = (rts->value >= IEEE80211_MAX_RTS_THRESHOLD);
 840         rts->fixed = 1;
 841
 842         return 0;
 843 }
 844
 845
 846 static int ieee80211_ioctl_siwfrag(struct net_device *dev,
 847                                    struct iw_request_info *info,
 848                                    struct iw_param *frag, char *extra)
 849 {
 850         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 851
 852         if (frag->disabled)
 853                 local->fragmentation_threshold = IEEE80211_MAX_FRAG_THRESHOLD;
 854         else if (frag->value < 256 ||
 855                  frag->value > IEEE80211_MAX_FRAG_THRESHOLD)
 856                 return -EINVAL;
 857         else {
 858                 /* Fragment length must be even, so strip LSB. */
 859                 local->fragmentation_threshold = frag->value & ~0x1;
 860         }
 861
 862         /* If the wlan card performs fragmentation in hardware/firmware,
 863          * configure it here */
 864
 865         if (local->ops->set_frag_threshold)
 866                 local->ops->set_frag_threshold(
 867                         local_to_hw(local),
 868                         local->fragmentation_threshold);
 869
 870         return 0;
 871 }
 872
 873 static int ieee80211_ioctl_giwfrag(struct net_device *dev,
 874                                    struct iw_request_info *info,
 875                                    struct iw_param *frag, char *extra)
 876 {
 877         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 878
 879         frag->value = local->fragmentation_threshold;
 880         frag->disabled = (frag->value >= IEEE80211_MAX_RTS_THRESHOLD);
 881         frag->fixed = 1;
 882
 883         return 0;
 884 }
 885
 886
 887 static int ieee80211_ioctl_siwretry(struct net_device *dev,
 888                                     struct iw_request_info *info,
 889                                     struct iw_param *retry, char *extra)
 890 {
 891         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 892
 893         if (retry->disabled ||
 894             (retry->flags & IW_RETRY_TYPE) != IW_RETRY_LIMIT)
 895                 return -EINVAL;
 896
 897         if (retry->flags & IW_RETRY_MAX)
 898                 local->long_retry_limit = retry->value;
 899         else if (retry->flags & IW_RETRY_MIN)
 900                 local->short_retry_limit = retry->value;
 901         else {
 902                 local->long_retry_limit = retry->value;
 903                 local->short_retry_limit = retry->value;
 904         }
 905
 906         if (local->ops->set_retry_limit) {
 907                 return local->ops->set_retry_limit(
 908                         local_to_hw(local),
 909                         local->short_retry_limit,
 910                         local->long_retry_limit);
 911         }
 912
 913         return 0;
 914 }
 915
 916
 917 static int ieee80211_ioctl_giwretry(struct net_device *dev,
 918                                     struct iw_request_info *info,
 919                                     struct iw_param *retry, char *extra)
 920 {
 921         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 922
 923         retry->disabled = 0;
 924         if (retry->flags == 0 || retry->flags & IW_RETRY_MIN) {
 925                 /* first return min value, iwconfig will ask max value
 926                  * later if needed */
 927                 retry->flags |= IW_RETRY_LIMIT;
 928                 retry->value = local->short_retry_limit;
 929                 if (local->long_retry_limit != local->short_retry_limit)
 930                         retry->flags |= IW_RETRY_MIN;
 931                 return 0;
 932         }
 933         if (retry->flags & IW_RETRY_MAX) {
 934                 retry->flags = IW_RETRY_LIMIT | IW_RETRY_MAX;
 935                 retry->value = local->long_retry_limit;
 936         }
 937
 938         return 0;
 939 }
 940
 941 static void ieee80211_key_enable_hwaccel(struct ieee80211_local *local,
 942                                          struct ieee80211_key *key)
 943 {
 944         struct ieee80211_key_conf *keyconf;
 945         u8 addr[ETH_ALEN];
 946
 947         if (!key || key->alg != ALG_WEP || !key->force_sw_encrypt ||
 948             (local->hw.flags & IEEE80211_HW_DEVICE_HIDES_WEP))
 949                 return;
 950
 951         memset(addr, 0xff, ETH_ALEN);
 952         keyconf = ieee80211_key_data2conf(local, key);
 953         if (keyconf && local->ops->set_key &&
 954             local->ops->set_key(local_to_hw(local),
 955                                SET_KEY, addr, keyconf, 0) == 0) {
 956                 key->force_sw_encrypt =
 957                         !!(keyconf->flags & IEEE80211_KEY_FORCE_SW_ENCRYPT);
 958                 key->hw_key_idx = keyconf->hw_key_idx;
 959         }
 960         kfree(keyconf);
 961 }
 962
 963
 964 static void ieee80211_key_disable_hwaccel(struct ieee80211_local *local,
 965                                           struct ieee80211_key *key)
 966 {
 967         struct ieee80211_key_conf *keyconf;
 968         u8 addr[ETH_ALEN];
 969
 970         if (!key || key->alg != ALG_WEP || key->force_sw_encrypt ||
 971             (local->hw.flags & IEEE80211_HW_DEVICE_HIDES_WEP))
 972                 return;
 973
 974         memset(addr, 0xff, ETH_ALEN);
 975         keyconf = ieee80211_key_data2conf(local, key);
 976         if (keyconf && local->ops->set_key)
 977                 local->ops->set_key(local_to_hw(local), DISABLE_KEY,
 978                                    addr, keyconf, 0);
 979         kfree(keyconf);
 980         key->force_sw_encrypt = 1;
 981 }
 982
 983
 984 static int ieee80211_ioctl_default_wep_only(struct ieee80211_local *local,
 985                                             int value)
 986 {
 987         int i;
 988         struct ieee80211_sub_if_data *sdata;
 989
 990         local->default_wep_only = value;
 991         read_lock(&local->sub_if_lock);
 992         list_for_each_entry(sdata, &local->sub_if_list, list)
 993                 for (i = 0; i < NUM_DEFAULT_KEYS; i++)
 994                         if (value)
 995                                 ieee80211_key_enable_hwaccel(local,
 996                                                              sdata->keys[i]);
 997                         else
 998                                 ieee80211_key_disable_hwaccel(local,
 999                                                               sdata->keys[i]);
1000         read_unlock(&local->sub_if_lock);
1001
1002         return 0;
1003 }
1004
1005
1006 void ieee80211_update_default_wep_only(struct ieee80211_local *local)
1007 {
1008         int i = 0;
1009         struct ieee80211_sub_if_data *sdata;
1010
1011         read_lock(&local->sub_if_lock);
1012         list_for_each_entry(sdata, &local->sub_if_list, list) {
1013
1014                 if (sdata->dev == local->mdev)
1015                         continue;
1016
1017                 /* If there is an AP interface then depend on userspace to
1018                    set default_wep_only correctly. */
1019                 if (sdata->type == IEEE80211_IF_TYPE_AP) {
1020                         read_unlock(&local->sub_if_lock);
1021                         return;
1022                 }
1023
1024                 i++;
1025         }
1026
1027         read_unlock(&local->sub_if_lock);
1028
1029         if (i <= 1)
1030                 ieee80211_ioctl_default_wep_only(local, 1);
1031         else
1032                 ieee80211_ioctl_default_wep_only(local, 0);
1033 }
1034
1035
1036 static int ieee80211_ioctl_prism2_param(struct net_device *dev,
1037                                         struct iw_request_info *info,
1038                                         void *wrqu, char *extra)
1039 {
1040         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1041         struct ieee80211_sub_if_data *sdata;
1042         int *i = (int *) extra;
1043         int param = *i;
1044         int value = *(i + 1);
1045         int ret = 0;
1046
1047         if (!capable(CAP_NET_ADMIN))
1048                 return -EPERM;
1049
1050         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1051
1052         switch (param) {
1053         case PRISM2_PARAM_IEEE_802_1X:
1054                 if (local->ops->set_ieee8021x)
1055                         ret = local->ops->set_ieee8021x(local_to_hw(local),
1056                                                         value);
1057                 if (ret)
1058                         printk(KERN_DEBUG "%s: failed to set IEEE 802.1X (%d) "
1059                                "for low-level driver\n", dev->name, value);
1060                 else
1061                         sdata->ieee802_1x = value;
1062                 break;
1063
1064         case PRISM2_PARAM_CTS_PROTECT_ERP_FRAMES:
1065                 if (sdata->type == IEEE80211_IF_TYPE_AP) {
1066                         if (value)
1067                                 sdata->flags |= IEEE80211_SDATA_USE_PROTECTION;
1068                         else
1069                                 sdata->flags &= ~IEEE80211_SDATA_USE_PROTECTION;
1070                         ieee80211_erp_info_change_notify(dev,
1071                                         IEEE80211_ERP_CHANGE_PROTECTION);
1072                 } else {
1073                         ret = -ENOENT;
1074                 }
1075                 break;
1076
1077         case PRISM2_PARAM_PREAMBLE:
1078                 if (sdata->type != IEEE80211_IF_TYPE_AP) {
1079                         if (value)
1080                                 sdata->flags |= IEEE80211_SDATA_SHORT_PREAMBLE;
1081                         else
1082                                 sdata->flags &= ~IEEE80211_SDATA_SHORT_PREAMBLE;
1083                         ieee80211_erp_info_change_notify(dev,
1084                                         IEEE80211_ERP_CHANGE_PREAMBLE);
1085                 } else {
1086                         ret = -ENOENT;
1087                 }
1088                 break;
1089
1090         case PRISM2_PARAM_SHORT_SLOT_TIME:
1091                 if (value)
1092                         local->hw.conf.flags |= IEEE80211_CONF_SHORT_SLOT_TIME;
1093                 else
1094                         local->hw.conf.flags &= ~IEEE80211_CONF_SHORT_SLOT_TIME;
1095                 if (ieee80211_hw_config(local))
1096                         ret = -EINVAL;
1097                 break;
1098
1099         case PRISM2_PARAM_NEXT_MODE:
1100                 local->next_mode = 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_WIFI_WME_NOACK_TEST:
1108                 local->wifi_wme_noack_test = value;
1109                 break;
1110
1111         case PRISM2_PARAM_SCAN_FLAGS:
1112                 local->scan_flags = value;
1113                 break;
1114
1115         case PRISM2_PARAM_MIXED_CELL:
1116                 if (sdata->type != IEEE80211_IF_TYPE_STA &&
1117                     sdata->type != IEEE80211_IF_TYPE_IBSS)
1118                         ret = -EINVAL;
1119                 else {
1120                         if (value)
1121                                 sdata->u.sta.flags |= IEEE80211_STA_MIXED_CELL;
1122                         else
1123                                 sdata->u.sta.flags &= ~IEEE80211_STA_MIXED_CELL;
1124                 }
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                         if (value)
1136                                 sdata->u.sta.flags |= IEEE80211_STA_CREATE_IBSS;
1137                         else
1138                                 sdata->u.sta.flags &= ~IEEE80211_STA_CREATE_IBSS;
1139                 }
1140                 break;
1141         case PRISM2_PARAM_WMM_ENABLED:
1142                 if (sdata->type != IEEE80211_IF_TYPE_STA &&
1143                     sdata->type != IEEE80211_IF_TYPE_IBSS)
1144                         ret = -EINVAL;
1145                 else {
1146                         if (value)
1147                                 sdata->u.sta.flags |= IEEE80211_STA_WMM_ENABLED;
1148                         else
1149                                 sdata->u.sta.flags &= ~IEEE80211_STA_WMM_ENABLED;
1150                 }
1151                 break;
1152         default:
1153                 ret = -EOPNOTSUPP;
1154                 break;
1155         }
1156
1157         return ret;
1158 }
1159
1160
1161 static int ieee80211_ioctl_get_prism2_param(struct net_device *dev,
1162                                             struct iw_request_info *info,
1163                                             void *wrqu, char *extra)
1164 {
1165         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1166         struct ieee80211_sub_if_data *sdata;
1167         int *param = (int *) extra;
1168         int ret = 0;
1169
1170         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1171
1172         switch (*param) {
1173         case PRISM2_PARAM_IEEE_802_1X:
1174                 *param = sdata->ieee802_1x;
1175                 break;
1176
1177         case PRISM2_PARAM_CTS_PROTECT_ERP_FRAMES:
1178                 *param = !!(sdata->flags & IEEE80211_SDATA_USE_PROTECTION);
1179                 break;
1180
1181         case PRISM2_PARAM_PREAMBLE:
1182                 *param = !!(sdata->flags & IEEE80211_SDATA_SHORT_PREAMBLE);
1183                 break;
1184
1185         case PRISM2_PARAM_SHORT_SLOT_TIME:
1186                 *param = !!(local->hw.conf.flags & IEEE80211_CONF_SHORT_SLOT_TIME);
1187                 break;
1188
1189         case PRISM2_PARAM_NEXT_MODE:
1190                 *param = local->next_mode;
1191                 break;
1192
1193         case PRISM2_PARAM_KEY_TX_RX_THRESHOLD:
1194                 *param = local->key_tx_rx_threshold;
1195                 break;
1196
1197         case PRISM2_PARAM_WIFI_WME_NOACK_TEST:
1198                 *param = local->wifi_wme_noack_test;
1199                 break;
1200
1201         case PRISM2_PARAM_SCAN_FLAGS:
1202                 *param = local->scan_flags;
1203                 break;
1204
1205         case PRISM2_PARAM_HW_MODES:
1206                 *param = local->enabled_modes;
1207                 break;
1208
1209         case PRISM2_PARAM_CREATE_IBSS:
1210                 if (sdata->type != IEEE80211_IF_TYPE_IBSS)
1211                         ret = -EINVAL;
1212                 else
1213                         *param = !!(sdata->u.sta.flags &
1214                                         IEEE80211_STA_CREATE_IBSS);
1215                 break;
1216
1217         case PRISM2_PARAM_MIXED_CELL:
1218                 if (sdata->type != IEEE80211_IF_TYPE_STA &&
1219                     sdata->type != IEEE80211_IF_TYPE_IBSS)
1220                         ret = -EINVAL;
1221                 else
1222                         *param = !!(sdata->u.sta.flags &
1223                                         IEEE80211_STA_MIXED_CELL);
1224                 break;
1225         case PRISM2_PARAM_WMM_ENABLED:
1226                 if (sdata->type != IEEE80211_IF_TYPE_STA &&
1227                     sdata->type != IEEE80211_IF_TYPE_IBSS)
1228                         ret = -EINVAL;
1229                 else
1230                         *param = !!(sdata->u.sta.flags &
1231                                         IEEE80211_STA_WMM_ENABLED);
1232                 break;
1233         default:
1234                 ret = -EOPNOTSUPP;
1235                 break;
1236         }
1237
1238         return ret;
1239 }
1240
1241 static int ieee80211_ioctl_siwmlme(struct net_device *dev,
1242                                    struct iw_request_info *info,
1243                                    struct iw_point *data, char *extra)
1244 {
1245         struct ieee80211_sub_if_data *sdata;
1246         struct iw_mlme *mlme = (struct iw_mlme *) extra;
1247
1248         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1249         if (sdata->type != IEEE80211_IF_TYPE_STA &&
1250             sdata->type != IEEE80211_IF_TYPE_IBSS)
1251                 return -EINVAL;
1252
1253         switch (mlme->cmd) {
1254         case IW_MLME_DEAUTH:
1255                 /* TODO: mlme->addr.sa_data */
1256                 return ieee80211_sta_deauthenticate(dev, mlme->reason_code);
1257         case IW_MLME_DISASSOC:
1258                 /* TODO: mlme->addr.sa_data */
1259                 return ieee80211_sta_disassociate(dev, mlme->reason_code);
1260         default:
1261                 return -EOPNOTSUPP;
1262         }
1263 }
1264
1265
1266 static int ieee80211_ioctl_siwencode(struct net_device *dev,
1267                                      struct iw_request_info *info,
1268                                      struct iw_point *erq, char *keybuf)
1269 {
1270         struct ieee80211_sub_if_data *sdata;
1271         int idx, i, alg = ALG_WEP;
1272         u8 bcaddr[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
1273
1274         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1275
1276         idx = erq->flags & IW_ENCODE_INDEX;
1277         if (idx == 0) {
1278                 if (sdata->default_key)
1279                         for (i = 0; i < NUM_DEFAULT_KEYS; i++) {
1280                                 if (sdata->default_key == sdata->keys[i]) {
1281                                         idx = i;
1282                                         break;
1283                                 }
1284                         }
1285         } else if (idx < 1 || idx > 4)
1286                 return -EINVAL;
1287         else
1288                 idx--;
1289
1290         if (erq->flags & IW_ENCODE_DISABLED)
1291                 alg = ALG_NONE;
1292         else if (erq->length == 0) {
1293                 /* No key data - just set the default TX key index */
1294                 if (sdata->default_key != sdata->keys[idx]) {
1295                         ieee80211_debugfs_key_remove_default(sdata);
1296                         sdata->default_key = sdata->keys[idx];
1297                         if (sdata->default_key)
1298                                 ieee80211_debugfs_key_add_default(sdata);
1299                 }
1300                 return 0;
1301         }
1302
1303         return ieee80211_set_encryption(
1304                 dev, bcaddr,
1305                 idx, alg,
1306                 !sdata->default_key,
1307                 keybuf, erq->length);
1308 }
1309
1310
1311 static int ieee80211_ioctl_giwencode(struct net_device *dev,
1312                                      struct iw_request_info *info,
1313                                      struct iw_point *erq, char *key)
1314 {
1315         struct ieee80211_sub_if_data *sdata;
1316         int idx, i;
1317
1318         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1319
1320         idx = erq->flags & IW_ENCODE_INDEX;
1321         if (idx < 1 || idx > 4) {
1322                 idx = -1;
1323                 if (!sdata->default_key)
1324                         idx = 0;
1325                 else for (i = 0; i < NUM_DEFAULT_KEYS; i++) {
1326                         if (sdata->default_key == sdata->keys[i]) {
1327                                 idx = i;
1328                                 break;
1329                         }
1330                 }
1331                 if (idx < 0)
1332                         return -EINVAL;
1333         } else
1334                 idx--;
1335
1336         erq->flags = idx + 1;
1337
1338         if (!sdata->keys[idx]) {
1339                 erq->length = 0;
1340                 erq->flags |= IW_ENCODE_DISABLED;
1341                 return 0;
1342         }
1343
1344         memcpy(key, sdata->keys[idx]->key,
1345                min((int)erq->length, sdata->keys[idx]->keylen));
1346         erq->length = sdata->keys[idx]->keylen;
1347         erq->flags |= IW_ENCODE_ENABLED;
1348
1349         return 0;
1350 }
1351
1352 static int ieee80211_ioctl_siwauth(struct net_device *dev,
1353                                    struct iw_request_info *info,
1354                                    struct iw_param *data, char *extra)
1355 {
1356         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1357         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1358         int ret = 0;
1359
1360         switch (data->flags & IW_AUTH_INDEX) {
1361         case IW_AUTH_WPA_VERSION:
1362         case IW_AUTH_CIPHER_PAIRWISE:
1363         case IW_AUTH_CIPHER_GROUP:
1364         case IW_AUTH_WPA_ENABLED:
1365         case IW_AUTH_RX_UNENCRYPTED_EAPOL:
1366                 break;
1367         case IW_AUTH_KEY_MGMT:
1368                 if (sdata->type != IEEE80211_IF_TYPE_STA)
1369                         ret = -EINVAL;
1370                 else {
1371                         /*
1372                          * Key management was set by wpa_supplicant,
1373                          * we only need this to associate to a network
1374                          * that has privacy enabled regardless of not
1375                          * having a key.
1376                          */
1377                         sdata->u.sta.key_management_enabled = !!data->value;
1378                 }
1379                 break;
1380         case IW_AUTH_80211_AUTH_ALG:
1381                 if (sdata->type == IEEE80211_IF_TYPE_STA ||
1382                     sdata->type == IEEE80211_IF_TYPE_IBSS)
1383                         sdata->u.sta.auth_algs = data->value;
1384                 else
1385                         ret = -EOPNOTSUPP;
1386                 break;
1387         case IW_AUTH_PRIVACY_INVOKED:
1388                 if (local->ops->set_privacy_invoked)
1389                         ret = local->ops->set_privacy_invoked(
1390                                         local_to_hw(local), data->value);
1391                 break;
1392         default:
1393                 ret = -EOPNOTSUPP;
1394                 break;
1395         }
1396         return ret;
1397 }
1398
1399 /* Get wireless statistics.  Called by /proc/net/wireless and by SIOCGIWSTATS */
1400 static struct iw_statistics *ieee80211_get_wireless_stats(struct net_device *dev)
1401 {
1402         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1403         struct iw_statistics *wstats = &local->wstats;
1404         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1405         struct sta_info *sta = NULL;
1406
1407         if (sdata->type == IEEE80211_IF_TYPE_STA ||
1408             sdata->type == IEEE80211_IF_TYPE_IBSS)
1409                 sta = sta_info_get(local, sdata->u.sta.bssid);
1410         if (!sta) {
1411                 wstats->discard.fragment = 0;
1412                 wstats->discard.misc = 0;
1413                 wstats->qual.qual = 0;
1414                 wstats->qual.level = 0;
1415                 wstats->qual.noise = 0;
1416                 wstats->qual.updated = IW_QUAL_ALL_INVALID;
1417         } else {
1418                 wstats->qual.level = sta->last_rssi;
1419                 wstats->qual.qual = sta->last_signal;
1420                 wstats->qual.noise = sta->last_noise;
1421                 wstats->qual.updated = local->wstats_flags;
1422                 sta_info_put(sta);
1423         }
1424         return wstats;
1425 }
1426
1427 static int ieee80211_ioctl_giwauth(struct net_device *dev,
1428                                    struct iw_request_info *info,
1429                                    struct iw_param *data, char *extra)
1430 {
1431         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1432         int ret = 0;
1433
1434         switch (data->flags & IW_AUTH_INDEX) {
1435         case IW_AUTH_80211_AUTH_ALG:
1436                 if (sdata->type == IEEE80211_IF_TYPE_STA ||
1437                     sdata->type == IEEE80211_IF_TYPE_IBSS)
1438                         data->value = sdata->u.sta.auth_algs;
1439                 else
1440                         ret = -EOPNOTSUPP;
1441                 break;
1442         default:
1443                 ret = -EOPNOTSUPP;
1444                 break;
1445         }
1446         return ret;
1447 }
1448
1449
1450 static int ieee80211_ioctl_siwencodeext(struct net_device *dev,
1451                                         struct iw_request_info *info,
1452                                         struct iw_point *erq, char *extra)
1453 {
1454         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1455         struct iw_encode_ext *ext = (struct iw_encode_ext *) extra;
1456         int alg, idx, i;
1457
1458         switch (ext->alg) {
1459         case IW_ENCODE_ALG_NONE:
1460                 alg = ALG_NONE;
1461                 break;
1462         case IW_ENCODE_ALG_WEP:
1463                 alg = ALG_WEP;
1464                 break;
1465         case IW_ENCODE_ALG_TKIP:
1466                 alg = ALG_TKIP;
1467                 break;
1468         case IW_ENCODE_ALG_CCMP:
1469                 alg = ALG_CCMP;
1470                 break;
1471         default:
1472                 return -EOPNOTSUPP;
1473         }
1474
1475         if (erq->flags & IW_ENCODE_DISABLED)
1476                 alg = ALG_NONE;
1477
1478         idx = erq->flags & IW_ENCODE_INDEX;
1479         if (idx < 1 || idx > 4) {
1480                 idx = -1;
1481                 if (!sdata->default_key)
1482                         idx = 0;
1483                 else for (i = 0; i < NUM_DEFAULT_KEYS; i++) {
1484                         if (sdata->default_key == sdata->keys[i]) {
1485                                 idx = i;
1486                                 break;
1487                         }
1488                 }
1489                 if (idx < 0)
1490                         return -EINVAL;
1491         } else
1492                 idx--;
1493
1494         return ieee80211_set_encryption(dev, ext->addr.sa_data, idx, alg,
1495                                         ext->ext_flags &
1496                                         IW_ENCODE_EXT_SET_TX_KEY,
1497                                         ext->key, ext->key_len);
1498 }
1499
1500
1501 static const struct iw_priv_args ieee80211_ioctl_priv[] = {
1502         { PRISM2_IOCTL_PRISM2_PARAM,
1503           IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 2, 0, "param" },
1504         { PRISM2_IOCTL_GET_PRISM2_PARAM,
1505           IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
1506           IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "get_param" },
1507 };
1508
1509 /* Structures to export the Wireless Handlers */
1510
1511 static const iw_handler ieee80211_handler[] =
1512 {
1513         (iw_handler) NULL,                              /* SIOCSIWCOMMIT */
1514         (iw_handler) ieee80211_ioctl_giwname,           /* SIOCGIWNAME */
1515         (iw_handler) NULL,                              /* SIOCSIWNWID */
1516         (iw_handler) NULL,                              /* SIOCGIWNWID */
1517         (iw_handler) ieee80211_ioctl_siwfreq,           /* SIOCSIWFREQ */
1518         (iw_handler) ieee80211_ioctl_giwfreq,           /* SIOCGIWFREQ */
1519         (iw_handler) ieee80211_ioctl_siwmode,           /* SIOCSIWMODE */
1520         (iw_handler) ieee80211_ioctl_giwmode,           /* SIOCGIWMODE */
1521         (iw_handler) NULL,                              /* SIOCSIWSENS */
1522         (iw_handler) NULL,                              /* SIOCGIWSENS */
1523         (iw_handler) NULL /* not used */,               /* SIOCSIWRANGE */
1524         (iw_handler) ieee80211_ioctl_giwrange,          /* SIOCGIWRANGE */
1525         (iw_handler) NULL /* not used */,               /* SIOCSIWPRIV */
1526         (iw_handler) NULL /* kernel code */,            /* SIOCGIWPRIV */
1527         (iw_handler) NULL /* not used */,               /* SIOCSIWSTATS */
1528         (iw_handler) NULL /* kernel code */,            /* SIOCGIWSTATS */
1529         iw_handler_set_spy,                             /* SIOCSIWSPY */
1530         iw_handler_get_spy,                             /* SIOCGIWSPY */
1531         iw_handler_set_thrspy,                          /* SIOCSIWTHRSPY */
1532         iw_handler_get_thrspy,                          /* SIOCGIWTHRSPY */
1533         (iw_handler) ieee80211_ioctl_siwap,             /* SIOCSIWAP */
1534         (iw_handler) ieee80211_ioctl_giwap,             /* SIOCGIWAP */
1535         (iw_handler) ieee80211_ioctl_siwmlme,           /* SIOCSIWMLME */
1536         (iw_handler) NULL,                              /* SIOCGIWAPLIST */
1537         (iw_handler) ieee80211_ioctl_siwscan,           /* SIOCSIWSCAN */
1538         (iw_handler) ieee80211_ioctl_giwscan,           /* SIOCGIWSCAN */
1539         (iw_handler) ieee80211_ioctl_siwessid,          /* SIOCSIWESSID */
1540         (iw_handler) ieee80211_ioctl_giwessid,          /* SIOCGIWESSID */
1541         (iw_handler) NULL,                              /* SIOCSIWNICKN */
1542         (iw_handler) NULL,                              /* SIOCGIWNICKN */
1543         (iw_handler) NULL,                              /* -- hole -- */
1544         (iw_handler) NULL,                              /* -- hole -- */
1545         (iw_handler) ieee80211_ioctl_siwrate,           /* SIOCSIWRATE */
1546         (iw_handler) ieee80211_ioctl_giwrate,           /* SIOCGIWRATE */
1547         (iw_handler) ieee80211_ioctl_siwrts,            /* SIOCSIWRTS */
1548         (iw_handler) ieee80211_ioctl_giwrts,            /* SIOCGIWRTS */
1549         (iw_handler) ieee80211_ioctl_siwfrag,           /* SIOCSIWFRAG */
1550         (iw_handler) ieee80211_ioctl_giwfrag,           /* SIOCGIWFRAG */
1551         (iw_handler) NULL,                              /* SIOCSIWTXPOW */
1552         (iw_handler) ieee80211_ioctl_giwtxpower,        /* SIOCGIWTXPOW */
1553         (iw_handler) ieee80211_ioctl_siwretry,          /* SIOCSIWRETRY */
1554         (iw_handler) ieee80211_ioctl_giwretry,          /* SIOCGIWRETRY */
1555         (iw_handler) ieee80211_ioctl_siwencode,         /* SIOCSIWENCODE */
1556         (iw_handler) ieee80211_ioctl_giwencode,         /* SIOCGIWENCODE */
1557         (iw_handler) NULL,                              /* SIOCSIWPOWER */
1558         (iw_handler) NULL,                              /* SIOCGIWPOWER */
1559         (iw_handler) NULL,                              /* -- hole -- */
1560         (iw_handler) NULL,                              /* -- hole -- */
1561         (iw_handler) ieee80211_ioctl_siwgenie,          /* SIOCSIWGENIE */
1562         (iw_handler) NULL,                              /* SIOCGIWGENIE */
1563         (iw_handler) ieee80211_ioctl_siwauth,           /* SIOCSIWAUTH */
1564         (iw_handler) ieee80211_ioctl_giwauth,           /* SIOCGIWAUTH */
1565         (iw_handler) ieee80211_ioctl_siwencodeext,      /* SIOCSIWENCODEEXT */
1566         (iw_handler) NULL,                              /* SIOCGIWENCODEEXT */
1567         (iw_handler) NULL,                              /* SIOCSIWPMKSA */
1568         (iw_handler) NULL,                              /* -- hole -- */
1569 };
1570
1571 static const iw_handler ieee80211_private_handler[] =
1572 {                                                       /* SIOCIWFIRSTPRIV + */
1573         (iw_handler) ieee80211_ioctl_prism2_param,      /* 0 */
1574         (iw_handler) ieee80211_ioctl_get_prism2_param,  /* 1 */
1575 };
1576
1577 const struct iw_handler_def ieee80211_iw_handler_def =
1578 {
1579         .num_standard   = ARRAY_SIZE(ieee80211_handler),
1580         .num_private    = ARRAY_SIZE(ieee80211_private_handler),
1581         .num_private_args = ARRAY_SIZE(ieee80211_ioctl_priv),
1582         .standard       = (iw_handler *) ieee80211_handler,
1583         .private        = (iw_handler *) ieee80211_private_handler,
1584         .private_args   = (struct iw_priv_args *) ieee80211_ioctl_priv,
1585         .get_wireless_stats = ieee80211_get_wireless_stats,
1586 };