err.no 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_local *local = wdev_priv(dev->ieee80211_ptr);
  35
  36         /* default to sw encryption; this will be cleared by low-level
  37          * driver if the hw supports requested encryption */
  38         if (key)
  39                 key->conf.flags |= IEEE80211_KEY_FORCE_SW_ENCRYPT;
  40
  41         if (key && local->ops->set_key) {
  42                 if (local->ops->set_key(local_to_hw(local), SET_KEY, addr,
  43                                         &key->conf)) {
  44                         key->conf.flags |= IEEE80211_KEY_FORCE_SW_ENCRYPT;
  45                         key->conf.hw_key_idx = HW_KEY_IDX_INVALID;
  46                 }
  47         }
  48 }
  49
  50
  51 static int ieee80211_set_encryption(struct net_device *dev, u8 *sta_addr,
  52                                     int idx, int alg, int set_tx_key,
  53                                     const u8 *_key, size_t key_len)
  54 {
  55         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
  56         int ret = 0;
  57         struct sta_info *sta;
  58         struct ieee80211_key *key, *old_key;
  59         int try_hwaccel = 1;
  60         struct ieee80211_sub_if_data *sdata;
  61
  62         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
  63
  64         if (is_broadcast_ether_addr(sta_addr)) {
  65                 sta = NULL;
  66                 if (idx >= NUM_DEFAULT_KEYS) {
  67                         printk(KERN_DEBUG "%s: set_encrypt - invalid idx=%d\n",
  68                                dev->name, idx);
  69                         return -EINVAL;
  70                 }
  71                 key = sdata->keys[idx];
  72
  73                 /* TODO: consider adding hwaccel support for these; at least
  74                  * Atheros key cache should be able to handle this since AP is
  75                  * only transmitting frames with default keys. */
  76                 /* FIX: hw key cache can be used when only one virtual
  77                  * STA is associated with each AP. If more than one STA
  78                  * is associated to the same AP, software encryption
  79                  * must be used. This should be done automatically
  80                  * based on configured station devices. For the time
  81                  * being, this can be only set at compile time. */
  82         } else {
  83                 set_tx_key = 0;
  84                 if (idx != 0) {
  85                         printk(KERN_DEBUG "%s: set_encrypt - non-zero idx for "
  86                                "individual key\n", dev->name);
  87                         return -EINVAL;
  88                 }
  89
  90                 sta = sta_info_get(local, sta_addr);
  91                 if (!sta) {
  92 #ifdef CONFIG_MAC80211_VERBOSE_DEBUG
  93                         printk(KERN_DEBUG "%s: set_encrypt - unknown addr "
  94                                MAC_FMT "\n",
  95                                dev->name, MAC_ARG(sta_addr));
  96 #endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
  97
  98                         return -ENOENT;
  99                 }
 100
 101                 key = sta->key;
 102         }
 103
 104         /* FIX:
 105          * Cannot configure default hwaccel keys with WEP algorithm, if
 106          * any of the virtual interfaces is using static WEP
 107          * configuration because hwaccel would otherwise try to decrypt
 108          * these frames.
 109          *
 110          * For now, just disable WEP hwaccel for broadcast when there is
 111          * possibility of conflict with default keys. This can maybe later be
 112          * optimized by using non-default keys (at least with Atheros ar521x).
 113          */
 114         if (!sta && alg == ALG_WEP &&
 115             sdata->type != IEEE80211_IF_TYPE_IBSS &&
 116             sdata->type != IEEE80211_IF_TYPE_AP) {
 117                 try_hwaccel = 0;
 118         }
 119
 120         if (local->hw.flags & IEEE80211_HW_DEVICE_HIDES_WEP) {
 121                 /* Software encryption cannot be used with devices that hide
 122                  * encryption from the host system, so always try to use
 123                  * hardware acceleration with such devices. */
 124                 try_hwaccel = 1;
 125         }
 126
 127         if ((local->hw.flags & IEEE80211_HW_NO_TKIP_WMM_HWACCEL) &&
 128             alg == ALG_TKIP) {
 129                 if (sta && (sta->flags & WLAN_STA_WME)) {
 130                 /* Hardware does not support hwaccel with TKIP when using WMM.
 131                  */
 132                         try_hwaccel = 0;
 133                 }
 134                 else if (sdata->type == IEEE80211_IF_TYPE_STA) {
 135                         sta = sta_info_get(local, sdata->u.sta.bssid);
 136                         if (sta) {
 137                                 if (sta->flags & WLAN_STA_WME) {
 138                                         try_hwaccel = 0;
 139                                 }
 140                                 sta_info_put(sta);
 141                                 sta = NULL;
 142                         }
 143                 }
 144         }
 145
 146         if (alg == ALG_NONE) {
 147                 if (try_hwaccel && key &&
 148                     key->conf.hw_key_idx != HW_KEY_IDX_INVALID &&
 149                     local->ops->set_key &&
 150                     local->ops->set_key(local_to_hw(local), DISABLE_KEY,
 151                                         sta_addr, &key->conf)) {
 152                         printk(KERN_DEBUG "%s: set_encrypt - low-level disable"
 153                                " failed\n", dev->name);
 154                         ret = -EINVAL;
 155                 }
 156
 157                 if (set_tx_key || sdata->default_key == key) {
 158                         ieee80211_debugfs_key_remove_default(sdata);
 159                         sdata->default_key = NULL;
 160                 }
 161                 ieee80211_debugfs_key_remove(key);
 162                 if (sta)
 163                         sta->key = NULL;
 164                 else
 165                         sdata->keys[idx] = NULL;
 166                 ieee80211_key_free(key);
 167                 key = NULL;
 168         } else {
 169                 old_key = key;
 170                 key = ieee80211_key_alloc(sta ? NULL : sdata, idx, key_len,
 171                                           GFP_KERNEL);
 172                 if (!key) {
 173                         ret = -ENOMEM;
 174                         goto err_out;
 175                 }
 176
 177                 /* default to sw encryption; low-level driver sets these if the
 178                  * requested encryption is supported */
 179                 key->conf.hw_key_idx = HW_KEY_IDX_INVALID;
 180                 key->conf.flags |= IEEE80211_KEY_FORCE_SW_ENCRYPT;
 181
 182                 key->conf.alg = alg;
 183                 key->conf.keyidx = idx;
 184                 key->conf.keylen = key_len;
 185                 memcpy(key->conf.key, _key, key_len);
 186
 187                 if (alg == ALG_CCMP) {
 188                         /* Initialize AES key state here as an optimization
 189                          * so that it does not need to be initialized for every
 190                          * packet. */
 191                         key->u.ccmp.tfm = ieee80211_aes_key_setup_encrypt(
 192                                 key->conf.key);
 193                         if (!key->u.ccmp.tfm) {
 194                                 ret = -ENOMEM;
 195                                 goto err_free;
 196                         }
 197                 }
 198
 199                 if (set_tx_key || sdata->default_key == old_key) {
 200                         ieee80211_debugfs_key_remove_default(sdata);
 201                         sdata->default_key = NULL;
 202                 }
 203                 ieee80211_debugfs_key_remove(old_key);
 204                 if (sta)
 205                         sta->key = key;
 206                 else
 207                         sdata->keys[idx] = key;
 208                 ieee80211_key_free(old_key);
 209                 ieee80211_debugfs_key_add(local, key);
 210                 if (sta)
 211                         ieee80211_debugfs_key_sta_link(key, sta);
 212
 213                 if (try_hwaccel &&
 214                     (alg == ALG_WEP || alg == ALG_TKIP || alg == ALG_CCMP))
 215                         ieee80211_set_hw_encryption(dev, sta, sta_addr, key);
 216         }
 217
 218         if (set_tx_key || (!sta && !sdata->default_key && key)) {
 219                 sdata->default_key = key;
 220                 if (key)
 221                         ieee80211_debugfs_key_add_default(sdata);
 222
 223                 if (local->ops->set_key_idx &&
 224                     local->ops->set_key_idx(local_to_hw(local), idx))
 225                         printk(KERN_DEBUG "%s: failed to set TX key idx for "
 226                                "low-level driver\n", dev->name);
 227         }
 228
 229         if (sta)
 230                 sta_info_put(sta);
 231
 232         return 0;
 233
 234 err_free:
 235         ieee80211_key_free(key);
 236 err_out:
 237         if (sta)
 238                 sta_info_put(sta);
 239         return ret;
 240 }
 241
 242 static int ieee80211_ioctl_siwgenie(struct net_device *dev,
 243                                     struct iw_request_info *info,
 244                                     struct iw_point *data, char *extra)
 245 {
 246         struct ieee80211_sub_if_data *sdata;
 247         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 248
 249         if (local->user_space_mlme)
 250                 return -EOPNOTSUPP;
 251
 252         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 253         if (sdata->type == IEEE80211_IF_TYPE_STA ||
 254             sdata->type == IEEE80211_IF_TYPE_IBSS) {
 255                 int ret = ieee80211_sta_set_extra_ie(dev, extra, data->length);
 256                 if (ret)
 257                         return ret;
 258                 sdata->u.sta.flags &= ~IEEE80211_STA_AUTO_BSSID_SEL;
 259                 ieee80211_sta_req_auth(dev, &sdata->u.sta);
 260                 return 0;
 261         }
 262
 263         if (sdata->type == IEEE80211_IF_TYPE_AP) {
 264                 kfree(sdata->u.ap.generic_elem);
 265                 sdata->u.ap.generic_elem = kmalloc(data->length, GFP_KERNEL);
 266                 if (!sdata->u.ap.generic_elem)
 267                         return -ENOMEM;
 268                 memcpy(sdata->u.ap.generic_elem, extra, data->length);
 269                 sdata->u.ap.generic_elem_len = data->length;
 270                 return ieee80211_if_config(dev);
 271         }
 272         return -EOPNOTSUPP;
 273 }
 274
 275 static int ieee80211_ioctl_giwname(struct net_device *dev,
 276                                    struct iw_request_info *info,
 277                                    char *name, char *extra)
 278 {
 279         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 280
 281         switch (local->hw.conf.phymode) {
 282         case MODE_IEEE80211A:
 283                 strcpy(name, "IEEE 802.11a");
 284                 break;
 285         case MODE_IEEE80211B:
 286                 strcpy(name, "IEEE 802.11b");
 287                 break;
 288         case MODE_IEEE80211G:
 289                 strcpy(name, "IEEE 802.11g");
 290                 break;
 291         case MODE_ATHEROS_TURBO:
 292                 strcpy(name, "5GHz Turbo");
 293                 break;
 294         default:
 295                 strcpy(name, "IEEE 802.11");
 296                 break;
 297         }
 298
 299         return 0;
 300 }
 301
 302
 303 static int ieee80211_ioctl_giwrange(struct net_device *dev,
 304                                  struct iw_request_info *info,
 305                                  struct iw_point *data, char *extra)
 306 {
 307         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 308         struct iw_range *range = (struct iw_range *) extra;
 309         struct ieee80211_hw_mode *mode = NULL;
 310         int c = 0;
 311
 312         data->length = sizeof(struct iw_range);
 313         memset(range, 0, sizeof(struct iw_range));
 314
 315         range->we_version_compiled = WIRELESS_EXT;
 316         range->we_version_source = 21;
 317         range->retry_capa = IW_RETRY_LIMIT;
 318         range->retry_flags = IW_RETRY_LIMIT;
 319         range->min_retry = 0;
 320         range->max_retry = 255;
 321         range->min_rts = 0;
 322         range->max_rts = 2347;
 323         range->min_frag = 256;
 324         range->max_frag = 2346;
 325
 326         range->encoding_size[0] = 5;
 327         range->encoding_size[1] = 13;
 328         range->num_encoding_sizes = 2;
 329         range->max_encoding_tokens = NUM_DEFAULT_KEYS;
 330
 331         range->max_qual.qual = local->hw.max_signal;
 332         range->max_qual.level = local->hw.max_rssi;
 333         range->max_qual.noise = local->hw.max_noise;
 334         range->max_qual.updated = local->wstats_flags;
 335
 336         range->avg_qual.qual = local->hw.max_signal/2;
 337         range->avg_qual.level = 0;
 338         range->avg_qual.noise = 0;
 339         range->avg_qual.updated = local->wstats_flags;
 340
 341         range->enc_capa = IW_ENC_CAPA_WPA | IW_ENC_CAPA_WPA2 |
 342                           IW_ENC_CAPA_CIPHER_TKIP | IW_ENC_CAPA_CIPHER_CCMP;
 343
 344         list_for_each_entry(mode, &local->modes_list, list) {
 345                 int i = 0;
 346
 347                 if (!(local->enabled_modes & (1 << mode->mode)) ||
 348                     (local->hw_modes & local->enabled_modes &
 349                      (1 << MODE_IEEE80211G) && mode->mode == MODE_IEEE80211B))
 350                         continue;
 351
 352                 while (i < mode->num_channels && c < IW_MAX_FREQUENCIES) {
 353                         struct ieee80211_channel *chan = &mode->channels[i];
 354
 355                         if (chan->flag & IEEE80211_CHAN_W_SCAN) {
 356                                 range->freq[c].i = chan->chan;
 357                                 range->freq[c].m = chan->freq * 100000;
 358                                 range->freq[c].e = 1;
 359                                 c++;
 360                         }
 361                         i++;
 362                 }
 363         }
 364         range->num_channels = c;
 365         range->num_frequency = c;
 366
 367         IW_EVENT_CAPA_SET_KERNEL(range->event_capa);
 368         IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWTHRSPY);
 369         IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWAP);
 370         IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWSCAN);
 371
 372         return 0;
 373 }
 374
 375
 376 static int ieee80211_ioctl_siwmode(struct net_device *dev,
 377                                    struct iw_request_info *info,
 378                                    __u32 *mode, char *extra)
 379 {
 380         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 381         int type;
 382
 383         if (sdata->type == IEEE80211_IF_TYPE_VLAN)
 384                 return -EOPNOTSUPP;
 385
 386         switch (*mode) {
 387         case IW_MODE_INFRA:
 388                 type = IEEE80211_IF_TYPE_STA;
 389                 break;
 390         case IW_MODE_ADHOC:
 391                 type = IEEE80211_IF_TYPE_IBSS;
 392                 break;
 393         case IW_MODE_MONITOR:
 394                 type = IEEE80211_IF_TYPE_MNTR;
 395                 break;
 396         default:
 397                 return -EINVAL;
 398         }
 399
 400         if (type == sdata->type)
 401                 return 0;
 402         if (netif_running(dev))
 403                 return -EBUSY;
 404
 405         ieee80211_if_reinit(dev);
 406         ieee80211_if_set_type(dev, type);
 407
 408         return 0;
 409 }
 410
 411
 412 static int ieee80211_ioctl_giwmode(struct net_device *dev,
 413                                    struct iw_request_info *info,
 414                                    __u32 *mode, char *extra)
 415 {
 416         struct ieee80211_sub_if_data *sdata;
 417
 418         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 419         switch (sdata->type) {
 420         case IEEE80211_IF_TYPE_AP:
 421                 *mode = IW_MODE_MASTER;
 422                 break;
 423         case IEEE80211_IF_TYPE_STA:
 424                 *mode = IW_MODE_INFRA;
 425                 break;
 426         case IEEE80211_IF_TYPE_IBSS:
 427                 *mode = IW_MODE_ADHOC;
 428                 break;
 429         case IEEE80211_IF_TYPE_MNTR:
 430                 *mode = IW_MODE_MONITOR;
 431                 break;
 432         case IEEE80211_IF_TYPE_WDS:
 433                 *mode = IW_MODE_REPEAT;
 434                 break;
 435         case IEEE80211_IF_TYPE_VLAN:
 436                 *mode = IW_MODE_SECOND;         /* FIXME */
 437                 break;
 438         default:
 439                 *mode = IW_MODE_AUTO;
 440                 break;
 441         }
 442         return 0;
 443 }
 444
 445 int ieee80211_set_channel(struct ieee80211_local *local, int channel, int freq)
 446 {
 447         struct ieee80211_hw_mode *mode;
 448         int c, set = 0;
 449         int ret = -EINVAL;
 450
 451         list_for_each_entry(mode, &local->modes_list, list) {
 452                 if (!(local->enabled_modes & (1 << mode->mode)))
 453                         continue;
 454                 for (c = 0; c < mode->num_channels; c++) {
 455                         struct ieee80211_channel *chan = &mode->channels[c];
 456                         if (chan->flag & IEEE80211_CHAN_W_SCAN &&
 457                             ((chan->chan == channel) || (chan->freq == freq))) {
 458                                 /* Use next_mode as the mode preference to
 459                                  * resolve non-unique channel numbers. */
 460                                 if (set && mode->mode != local->next_mode)
 461                                         continue;
 462
 463                                 local->oper_channel = chan;
 464                                 local->oper_hw_mode = mode;
 465                                 set++;
 466                         }
 467                 }
 468         }
 469
 470         if (set) {
 471                 if (local->sta_scanning)
 472                         ret = 0;
 473                 else
 474                         ret = ieee80211_hw_config(local);
 475
 476                 rate_control_clear(local);
 477         }
 478
 479         return ret;
 480 }
 481
 482 static int ieee80211_ioctl_siwfreq(struct net_device *dev,
 483                                    struct iw_request_info *info,
 484                                    struct iw_freq *freq, char *extra)
 485 {
 486         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 487         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 488
 489         if (sdata->type == IEEE80211_IF_TYPE_STA)
 490                 sdata->u.sta.flags &= ~IEEE80211_STA_AUTO_CHANNEL_SEL;
 491
 492         /* freq->e == 0: freq->m = channel; otherwise freq = m * 10^e */
 493         if (freq->e == 0) {
 494                 if (freq->m < 0) {
 495                         if (sdata->type == IEEE80211_IF_TYPE_STA)
 496                                 sdata->u.sta.flags |=
 497                                         IEEE80211_STA_AUTO_CHANNEL_SEL;
 498                         return 0;
 499                 } else
 500                         return ieee80211_set_channel(local, freq->m, -1);
 501         } else {
 502                 int i, div = 1000000;
 503                 for (i = 0; i < freq->e; i++)
 504                         div /= 10;
 505                 if (div > 0)
 506                         return ieee80211_set_channel(local, -1, freq->m / div);
 507                 else
 508                         return -EINVAL;
 509         }
 510 }
 511
 512
 513 static int ieee80211_ioctl_giwfreq(struct net_device *dev,
 514                                    struct iw_request_info *info,
 515                                    struct iw_freq *freq, char *extra)
 516 {
 517         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 518
 519         /* TODO: in station mode (Managed/Ad-hoc) might need to poll low-level
 520          * driver for the current channel with firmware-based management */
 521
 522         freq->m = local->hw.conf.freq;
 523         freq->e = 6;
 524
 525         return 0;
 526 }
 527
 528
 529 static int ieee80211_ioctl_siwessid(struct net_device *dev,
 530                                     struct iw_request_info *info,
 531                                     struct iw_point *data, char *ssid)
 532 {
 533         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 534         struct ieee80211_sub_if_data *sdata;
 535         size_t len = data->length;
 536
 537         /* iwconfig uses nul termination in SSID.. */
 538         if (len > 0 && ssid[len - 1] == '\0')
 539                 len--;
 540
 541         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 542         if (sdata->type == IEEE80211_IF_TYPE_STA ||
 543             sdata->type == IEEE80211_IF_TYPE_IBSS) {
 544                 int ret;
 545                 if (local->user_space_mlme) {
 546                         if (len > IEEE80211_MAX_SSID_LEN)
 547                                 return -EINVAL;
 548                         memcpy(sdata->u.sta.ssid, ssid, len);
 549                         sdata->u.sta.ssid_len = len;
 550                         return 0;
 551                 }
 552                 if (data->flags)
 553                         sdata->u.sta.flags &= ~IEEE80211_STA_AUTO_SSID_SEL;
 554                 else
 555                         sdata->u.sta.flags |= IEEE80211_STA_AUTO_SSID_SEL;
 556                 ret = ieee80211_sta_set_ssid(dev, ssid, len);
 557                 if (ret)
 558                         return ret;
 559                 ieee80211_sta_req_auth(dev, &sdata->u.sta);
 560                 return 0;
 561         }
 562
 563         if (sdata->type == IEEE80211_IF_TYPE_AP) {
 564                 memcpy(sdata->u.ap.ssid, ssid, len);
 565                 memset(sdata->u.ap.ssid + len, 0,
 566                        IEEE80211_MAX_SSID_LEN - len);
 567                 sdata->u.ap.ssid_len = len;
 568                 return ieee80211_if_config(dev);
 569         }
 570         return -EOPNOTSUPP;
 571 }
 572
 573
 574 static int ieee80211_ioctl_giwessid(struct net_device *dev,
 575                                     struct iw_request_info *info,
 576                                     struct iw_point *data, char *ssid)
 577 {
 578         size_t len;
 579
 580         struct ieee80211_sub_if_data *sdata;
 581         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 582         if (sdata->type == IEEE80211_IF_TYPE_STA ||
 583             sdata->type == IEEE80211_IF_TYPE_IBSS) {
 584                 int res = ieee80211_sta_get_ssid(dev, ssid, &len);
 585                 if (res == 0) {
 586                         data->length = len;
 587                         data->flags = 1;
 588                 } else
 589                         data->flags = 0;
 590                 return res;
 591         }
 592
 593         if (sdata->type == IEEE80211_IF_TYPE_AP) {
 594                 len = sdata->u.ap.ssid_len;
 595                 if (len > IW_ESSID_MAX_SIZE)
 596                         len = IW_ESSID_MAX_SIZE;
 597                 memcpy(ssid, sdata->u.ap.ssid, len);
 598                 data->length = len;
 599                 data->flags = 1;
 600                 return 0;
 601         }
 602         return -EOPNOTSUPP;
 603 }
 604
 605
 606 static int ieee80211_ioctl_siwap(struct net_device *dev,
 607                                  struct iw_request_info *info,
 608                                  struct sockaddr *ap_addr, char *extra)
 609 {
 610         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 611         struct ieee80211_sub_if_data *sdata;
 612
 613         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 614         if (sdata->type == IEEE80211_IF_TYPE_STA ||
 615             sdata->type == IEEE80211_IF_TYPE_IBSS) {
 616                 int ret;
 617                 if (local->user_space_mlme) {
 618                         memcpy(sdata->u.sta.bssid, (u8 *) &ap_addr->sa_data,
 619                                ETH_ALEN);
 620                         return 0;
 621                 }
 622                 if (is_zero_ether_addr((u8 *) &ap_addr->sa_data))
 623                         sdata->u.sta.flags |= IEEE80211_STA_AUTO_BSSID_SEL |
 624                                 IEEE80211_STA_AUTO_CHANNEL_SEL;
 625                 else if (is_broadcast_ether_addr((u8 *) &ap_addr->sa_data))
 626                         sdata->u.sta.flags |= IEEE80211_STA_AUTO_BSSID_SEL;
 627                 else
 628                         sdata->u.sta.flags &= ~IEEE80211_STA_AUTO_BSSID_SEL;
 629                 ret = ieee80211_sta_set_bssid(dev, (u8 *) &ap_addr->sa_data);
 630                 if (ret)
 631                         return ret;
 632                 ieee80211_sta_req_auth(dev, &sdata->u.sta);
 633                 return 0;
 634         } else if (sdata->type == IEEE80211_IF_TYPE_WDS) {
 635                 if (memcmp(sdata->u.wds.remote_addr, (u8 *) &ap_addr->sa_data,
 636                            ETH_ALEN) == 0)
 637                         return 0;
 638                 return ieee80211_if_update_wds(dev, (u8 *) &ap_addr->sa_data);
 639         }
 640
 641         return -EOPNOTSUPP;
 642 }
 643
 644
 645 static int ieee80211_ioctl_giwap(struct net_device *dev,
 646                                  struct iw_request_info *info,
 647                                  struct sockaddr *ap_addr, char *extra)
 648 {
 649         struct ieee80211_sub_if_data *sdata;
 650
 651         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 652         if (sdata->type == IEEE80211_IF_TYPE_STA ||
 653             sdata->type == IEEE80211_IF_TYPE_IBSS) {
 654                 ap_addr->sa_family = ARPHRD_ETHER;
 655                 memcpy(&ap_addr->sa_data, sdata->u.sta.bssid, ETH_ALEN);
 656                 return 0;
 657         } else if (sdata->type == IEEE80211_IF_TYPE_WDS) {
 658                 ap_addr->sa_family = ARPHRD_ETHER;
 659                 memcpy(&ap_addr->sa_data, sdata->u.wds.remote_addr, ETH_ALEN);
 660                 return 0;
 661         }
 662
 663         return -EOPNOTSUPP;
 664 }
 665
 666
 667 static int ieee80211_ioctl_siwscan(struct net_device *dev,
 668                                    struct iw_request_info *info,
 669                                    struct iw_point *data, char *extra)
 670 {
 671         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 672         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 673         u8 *ssid = NULL;
 674         size_t ssid_len = 0;
 675
 676         if (!netif_running(dev))
 677                 return -ENETDOWN;
 678
 679         switch (sdata->type) {
 680         case IEEE80211_IF_TYPE_STA:
 681         case IEEE80211_IF_TYPE_IBSS:
 682                 if (local->scan_flags & IEEE80211_SCAN_MATCH_SSID) {
 683                         ssid = sdata->u.sta.ssid;
 684                         ssid_len = sdata->u.sta.ssid_len;
 685                 }
 686                 break;
 687         case IEEE80211_IF_TYPE_AP:
 688                 if (local->scan_flags & IEEE80211_SCAN_MATCH_SSID) {
 689                         ssid = sdata->u.ap.ssid;
 690                         ssid_len = sdata->u.ap.ssid_len;
 691                 }
 692                 break;
 693         default:
 694                 return -EOPNOTSUPP;
 695         }
 696
 697         return ieee80211_sta_req_scan(dev, ssid, ssid_len);
 698 }
 699
 700
 701 static int ieee80211_ioctl_giwscan(struct net_device *dev,
 702                                    struct iw_request_info *info,
 703                                    struct iw_point *data, char *extra)
 704 {
 705         int res;
 706         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 707         if (local->sta_scanning)
 708                 return -EAGAIN;
 709         res = ieee80211_sta_scan_results(dev, extra, data->length);
 710         if (res >= 0) {
 711                 data->length = res;
 712                 return 0;
 713         }
 714         data->length = 0;
 715         return res;
 716 }
 717
 718
 719 static int ieee80211_ioctl_siwrate(struct net_device *dev,
 720                                   struct iw_request_info *info,
 721                                   struct iw_param *rate, char *extra)
 722 {
 723         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 724         struct ieee80211_hw_mode *mode;
 725         int i;
 726         u32 target_rate = rate->value / 100000;
 727         struct ieee80211_sub_if_data *sdata;
 728
 729         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 730         if (!sdata->bss)
 731                 return -ENODEV;
 732         mode = local->oper_hw_mode;
 733         /* target_rate = -1, rate->fixed = 0 means auto only, so use all rates
 734          * target_rate = X, rate->fixed = 1 means only rate X
 735          * target_rate = X, rate->fixed = 0 means all rates <= X */
 736         sdata->bss->max_ratectrl_rateidx = -1;
 737         sdata->bss->force_unicast_rateidx = -1;
 738         if (rate->value < 0)
 739                 return 0;
 740         for (i=0; i< mode->num_rates; i++) {
 741                 struct ieee80211_rate *rates = &mode->rates[i];
 742                 int this_rate = rates->rate;
 743
 744                 if (mode->mode == MODE_ATHEROS_TURBO ||
 745                     mode->mode == MODE_ATHEROS_TURBOG)
 746                         this_rate *= 2;
 747                 if (target_rate == this_rate) {
 748                         sdata->bss->max_ratectrl_rateidx = i;
 749                         if (rate->fixed)
 750                                 sdata->bss->force_unicast_rateidx = i;
 751                         break;
 752                 }
 753         }
 754         return 0;
 755 }
 756
 757 static int ieee80211_ioctl_giwrate(struct net_device *dev,
 758                                   struct iw_request_info *info,
 759                                   struct iw_param *rate, char *extra)
 760 {
 761         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 762         struct sta_info *sta;
 763         struct ieee80211_sub_if_data *sdata;
 764
 765         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 766         if (sdata->type == IEEE80211_IF_TYPE_STA)
 767                 sta = sta_info_get(local, sdata->u.sta.bssid);
 768         else
 769                 return -EOPNOTSUPP;
 770         if (!sta)
 771                 return -ENODEV;
 772         if (sta->txrate < local->oper_hw_mode->num_rates)
 773                 rate->value = local->oper_hw_mode->rates[sta->txrate].rate * 100000;
 774         else
 775                 rate->value = 0;
 776         sta_info_put(sta);
 777         return 0;
 778 }
 779
 780 static int ieee80211_ioctl_giwtxpower(struct net_device *dev,
 781                                    struct iw_request_info *info,
 782                                    union iwreq_data *data, char *extra)
 783 {
 784         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 785
 786         data->txpower.fixed = 1;
 787         data->txpower.disabled = !(local->hw.conf.radio_enabled);
 788         data->txpower.value = local->hw.conf.power_level;
 789         data->txpower.flags = IW_TXPOW_DBM;
 790
 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 int ieee80211_ioctl_prism2_param(struct net_device *dev,
 927                                         struct iw_request_info *info,
 928                                         void *wrqu, char *extra)
 929 {
 930         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 931         struct ieee80211_sub_if_data *sdata;
 932         int *i = (int *) extra;
 933         int param = *i;
 934         int value = *(i + 1);
 935         int ret = 0;
 936
 937         if (!capable(CAP_NET_ADMIN))
 938                 return -EPERM;
 939
 940         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 941
 942         switch (param) {
 943         case PRISM2_PARAM_IEEE_802_1X:
 944                 if (local->ops->set_ieee8021x)
 945                         ret = local->ops->set_ieee8021x(local_to_hw(local),
 946                                                         value);
 947                 if (ret)
 948                         printk(KERN_DEBUG "%s: failed to set IEEE 802.1X (%d) "
 949                                "for low-level driver\n", dev->name, value);
 950                 else
 951                         sdata->ieee802_1x = value;
 952                 break;
 953
 954         case PRISM2_PARAM_CTS_PROTECT_ERP_FRAMES:
 955                 if (sdata->type == IEEE80211_IF_TYPE_AP) {
 956                         if (value)
 957                                 sdata->flags |= IEEE80211_SDATA_USE_PROTECTION;
 958                         else
 959                                 sdata->flags &= ~IEEE80211_SDATA_USE_PROTECTION;
 960                         ieee80211_erp_info_change_notify(dev,
 961                                         IEEE80211_ERP_CHANGE_PROTECTION);
 962                 } else {
 963                         ret = -ENOENT;
 964                 }
 965                 break;
 966
 967         case PRISM2_PARAM_PREAMBLE:
 968                 if (sdata->type != IEEE80211_IF_TYPE_AP) {
 969                         if (value)
 970                                 sdata->flags |= IEEE80211_SDATA_SHORT_PREAMBLE;
 971                         else
 972                                 sdata->flags &= ~IEEE80211_SDATA_SHORT_PREAMBLE;
 973                         ieee80211_erp_info_change_notify(dev,
 974                                         IEEE80211_ERP_CHANGE_PREAMBLE);
 975                 } else {
 976                         ret = -ENOENT;
 977                 }
 978                 break;
 979
 980         case PRISM2_PARAM_SHORT_SLOT_TIME:
 981                 if (value)
 982                         local->hw.conf.flags |= IEEE80211_CONF_SHORT_SLOT_TIME;
 983                 else
 984                         local->hw.conf.flags &= ~IEEE80211_CONF_SHORT_SLOT_TIME;
 985                 if (ieee80211_hw_config(local))
 986                         ret = -EINVAL;
 987                 break;
 988
 989         case PRISM2_PARAM_NEXT_MODE:
 990                 local->next_mode = value;
 991                 break;
 992
 993         case PRISM2_PARAM_KEY_TX_RX_THRESHOLD:
 994                 local->key_tx_rx_threshold = value;
 995                 break;
 996
 997         case PRISM2_PARAM_WIFI_WME_NOACK_TEST:
 998                 local->wifi_wme_noack_test = value;
 999                 break;
1000
1001         case PRISM2_PARAM_SCAN_FLAGS:
1002                 local->scan_flags = value;
1003                 break;
1004
1005         case PRISM2_PARAM_MIXED_CELL:
1006                 if (sdata->type != IEEE80211_IF_TYPE_STA &&
1007                     sdata->type != IEEE80211_IF_TYPE_IBSS)
1008                         ret = -EINVAL;
1009                 else {
1010                         if (value)
1011                                 sdata->u.sta.flags |= IEEE80211_STA_MIXED_CELL;
1012                         else
1013                                 sdata->u.sta.flags &= ~IEEE80211_STA_MIXED_CELL;
1014                 }
1015                 break;
1016
1017         case PRISM2_PARAM_HW_MODES:
1018                 local->enabled_modes = value;
1019                 break;
1020
1021         case PRISM2_PARAM_CREATE_IBSS:
1022                 if (sdata->type != IEEE80211_IF_TYPE_IBSS)
1023                         ret = -EINVAL;
1024                 else {
1025                         if (value)
1026                                 sdata->u.sta.flags |= IEEE80211_STA_CREATE_IBSS;
1027                         else
1028                                 sdata->u.sta.flags &= ~IEEE80211_STA_CREATE_IBSS;
1029                 }
1030                 break;
1031         case PRISM2_PARAM_WMM_ENABLED:
1032                 if (sdata->type != IEEE80211_IF_TYPE_STA &&
1033                     sdata->type != IEEE80211_IF_TYPE_IBSS)
1034                         ret = -EINVAL;
1035                 else {
1036                         if (value)
1037                                 sdata->u.sta.flags |= IEEE80211_STA_WMM_ENABLED;
1038                         else
1039                                 sdata->u.sta.flags &= ~IEEE80211_STA_WMM_ENABLED;
1040                 }
1041                 break;
1042         default:
1043                 ret = -EOPNOTSUPP;
1044                 break;
1045         }
1046
1047         return ret;
1048 }
1049
1050
1051 static int ieee80211_ioctl_get_prism2_param(struct net_device *dev,
1052                                             struct iw_request_info *info,
1053                                             void *wrqu, char *extra)
1054 {
1055         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1056         struct ieee80211_sub_if_data *sdata;
1057         int *param = (int *) extra;
1058         int ret = 0;
1059
1060         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1061
1062         switch (*param) {
1063         case PRISM2_PARAM_IEEE_802_1X:
1064                 *param = sdata->ieee802_1x;
1065                 break;
1066
1067         case PRISM2_PARAM_CTS_PROTECT_ERP_FRAMES:
1068                 *param = !!(sdata->flags & IEEE80211_SDATA_USE_PROTECTION);
1069                 break;
1070
1071         case PRISM2_PARAM_PREAMBLE:
1072                 *param = !!(sdata->flags & IEEE80211_SDATA_SHORT_PREAMBLE);
1073                 break;
1074
1075         case PRISM2_PARAM_SHORT_SLOT_TIME:
1076                 *param = !!(local->hw.conf.flags & IEEE80211_CONF_SHORT_SLOT_TIME);
1077                 break;
1078
1079         case PRISM2_PARAM_NEXT_MODE:
1080                 *param = local->next_mode;
1081                 break;
1082
1083         case PRISM2_PARAM_KEY_TX_RX_THRESHOLD:
1084                 *param = local->key_tx_rx_threshold;
1085                 break;
1086
1087         case PRISM2_PARAM_WIFI_WME_NOACK_TEST:
1088                 *param = local->wifi_wme_noack_test;
1089                 break;
1090
1091         case PRISM2_PARAM_SCAN_FLAGS:
1092                 *param = local->scan_flags;
1093                 break;
1094
1095         case PRISM2_PARAM_HW_MODES:
1096                 *param = local->enabled_modes;
1097                 break;
1098
1099         case PRISM2_PARAM_CREATE_IBSS:
1100                 if (sdata->type != IEEE80211_IF_TYPE_IBSS)
1101                         ret = -EINVAL;
1102                 else
1103                         *param = !!(sdata->u.sta.flags &
1104                                         IEEE80211_STA_CREATE_IBSS);
1105                 break;
1106
1107         case PRISM2_PARAM_MIXED_CELL:
1108                 if (sdata->type != IEEE80211_IF_TYPE_STA &&
1109                     sdata->type != IEEE80211_IF_TYPE_IBSS)
1110                         ret = -EINVAL;
1111                 else
1112                         *param = !!(sdata->u.sta.flags &
1113                                         IEEE80211_STA_MIXED_CELL);
1114                 break;
1115         case PRISM2_PARAM_WMM_ENABLED:
1116                 if (sdata->type != IEEE80211_IF_TYPE_STA &&
1117                     sdata->type != IEEE80211_IF_TYPE_IBSS)
1118                         ret = -EINVAL;
1119                 else
1120                         *param = !!(sdata->u.sta.flags &
1121                                         IEEE80211_STA_WMM_ENABLED);
1122                 break;
1123         default:
1124                 ret = -EOPNOTSUPP;
1125                 break;
1126         }
1127
1128         return ret;
1129 }
1130
1131 static int ieee80211_ioctl_siwmlme(struct net_device *dev,
1132                                    struct iw_request_info *info,
1133                                    struct iw_point *data, char *extra)
1134 {
1135         struct ieee80211_sub_if_data *sdata;
1136         struct iw_mlme *mlme = (struct iw_mlme *) extra;
1137
1138         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1139         if (sdata->type != IEEE80211_IF_TYPE_STA &&
1140             sdata->type != IEEE80211_IF_TYPE_IBSS)
1141                 return -EINVAL;
1142
1143         switch (mlme->cmd) {
1144         case IW_MLME_DEAUTH:
1145                 /* TODO: mlme->addr.sa_data */
1146                 return ieee80211_sta_deauthenticate(dev, mlme->reason_code);
1147         case IW_MLME_DISASSOC:
1148                 /* TODO: mlme->addr.sa_data */
1149                 return ieee80211_sta_disassociate(dev, mlme->reason_code);
1150         default:
1151                 return -EOPNOTSUPP;
1152         }
1153 }
1154
1155
1156 static int ieee80211_ioctl_siwencode(struct net_device *dev,
1157                                      struct iw_request_info *info,
1158                                      struct iw_point *erq, char *keybuf)
1159 {
1160         struct ieee80211_sub_if_data *sdata;
1161         int idx, i, alg = ALG_WEP;
1162         u8 bcaddr[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
1163
1164         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1165
1166         idx = erq->flags & IW_ENCODE_INDEX;
1167         if (idx == 0) {
1168                 if (sdata->default_key)
1169                         for (i = 0; i < NUM_DEFAULT_KEYS; i++) {
1170                                 if (sdata->default_key == sdata->keys[i]) {
1171                                         idx = i;
1172                                         break;
1173                                 }
1174                         }
1175         } else if (idx < 1 || idx > 4)
1176                 return -EINVAL;
1177         else
1178                 idx--;
1179
1180         if (erq->flags & IW_ENCODE_DISABLED)
1181                 alg = ALG_NONE;
1182         else if (erq->length == 0) {
1183                 /* No key data - just set the default TX key index */
1184                 if (sdata->default_key != sdata->keys[idx]) {
1185                         ieee80211_debugfs_key_remove_default(sdata);
1186                         sdata->default_key = sdata->keys[idx];
1187                         if (sdata->default_key)
1188                                 ieee80211_debugfs_key_add_default(sdata);
1189                 }
1190                 return 0;
1191         }
1192
1193         return ieee80211_set_encryption(
1194                 dev, bcaddr,
1195                 idx, alg,
1196                 !sdata->default_key,
1197                 keybuf, erq->length);
1198 }
1199
1200
1201 static int ieee80211_ioctl_giwencode(struct net_device *dev,
1202                                      struct iw_request_info *info,
1203                                      struct iw_point *erq, char *key)
1204 {
1205         struct ieee80211_sub_if_data *sdata;
1206         int idx, i;
1207
1208         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1209
1210         idx = erq->flags & IW_ENCODE_INDEX;
1211         if (idx < 1 || idx > 4) {
1212                 idx = -1;
1213                 if (!sdata->default_key)
1214                         idx = 0;
1215                 else for (i = 0; i < NUM_DEFAULT_KEYS; i++) {
1216                         if (sdata->default_key == sdata->keys[i]) {
1217                                 idx = i;
1218                                 break;
1219                         }
1220                 }
1221                 if (idx < 0)
1222                         return -EINVAL;
1223         } else
1224                 idx--;
1225
1226         erq->flags = idx + 1;
1227
1228         if (!sdata->keys[idx]) {
1229                 erq->length = 0;
1230                 erq->flags |= IW_ENCODE_DISABLED;
1231                 return 0;
1232         }
1233
1234         memcpy(key, sdata->keys[idx]->conf.key,
1235                min((int)erq->length, sdata->keys[idx]->conf.keylen));
1236         erq->length = sdata->keys[idx]->conf.keylen;
1237         erq->flags |= IW_ENCODE_ENABLED;
1238
1239         return 0;
1240 }
1241
1242 static int ieee80211_ioctl_siwauth(struct net_device *dev,
1243                                    struct iw_request_info *info,
1244                                    struct iw_param *data, char *extra)
1245 {
1246         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1247         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1248         int ret = 0;
1249
1250         switch (data->flags & IW_AUTH_INDEX) {
1251         case IW_AUTH_WPA_VERSION:
1252         case IW_AUTH_CIPHER_PAIRWISE:
1253         case IW_AUTH_CIPHER_GROUP:
1254         case IW_AUTH_WPA_ENABLED:
1255         case IW_AUTH_RX_UNENCRYPTED_EAPOL:
1256                 break;
1257         case IW_AUTH_KEY_MGMT:
1258                 if (sdata->type != IEEE80211_IF_TYPE_STA)
1259                         ret = -EINVAL;
1260                 else {
1261                         /*
1262                          * Key management was set by wpa_supplicant,
1263                          * we only need this to associate to a network
1264                          * that has privacy enabled regardless of not
1265                          * having a key.
1266                          */
1267                         sdata->u.sta.key_management_enabled = !!data->value;
1268                 }
1269                 break;
1270         case IW_AUTH_80211_AUTH_ALG:
1271                 if (sdata->type == IEEE80211_IF_TYPE_STA ||
1272                     sdata->type == IEEE80211_IF_TYPE_IBSS)
1273                         sdata->u.sta.auth_algs = data->value;
1274                 else
1275                         ret = -EOPNOTSUPP;
1276                 break;
1277         case IW_AUTH_PRIVACY_INVOKED:
1278                 if (local->ops->set_privacy_invoked)
1279                         ret = local->ops->set_privacy_invoked(
1280                                         local_to_hw(local), data->value);
1281                 break;
1282         default:
1283                 ret = -EOPNOTSUPP;
1284                 break;
1285         }
1286         return ret;
1287 }
1288
1289 /* Get wireless statistics.  Called by /proc/net/wireless and by SIOCGIWSTATS */
1290 static struct iw_statistics *ieee80211_get_wireless_stats(struct net_device *dev)
1291 {
1292         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1293         struct iw_statistics *wstats = &local->wstats;
1294         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1295         struct sta_info *sta = NULL;
1296
1297         if (sdata->type == IEEE80211_IF_TYPE_STA ||
1298             sdata->type == IEEE80211_IF_TYPE_IBSS)
1299                 sta = sta_info_get(local, sdata->u.sta.bssid);
1300         if (!sta) {
1301                 wstats->discard.fragment = 0;
1302                 wstats->discard.misc = 0;
1303                 wstats->qual.qual = 0;
1304                 wstats->qual.level = 0;
1305                 wstats->qual.noise = 0;
1306                 wstats->qual.updated = IW_QUAL_ALL_INVALID;
1307         } else {
1308                 wstats->qual.level = sta->last_rssi;
1309                 wstats->qual.qual = sta->last_signal;
1310                 wstats->qual.noise = sta->last_noise;
1311                 wstats->qual.updated = local->wstats_flags;
1312                 sta_info_put(sta);
1313         }
1314         return wstats;
1315 }
1316
1317 static int ieee80211_ioctl_giwauth(struct net_device *dev,
1318                                    struct iw_request_info *info,
1319                                    struct iw_param *data, char *extra)
1320 {
1321         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1322         int ret = 0;
1323
1324         switch (data->flags & IW_AUTH_INDEX) {
1325         case IW_AUTH_80211_AUTH_ALG:
1326                 if (sdata->type == IEEE80211_IF_TYPE_STA ||
1327                     sdata->type == IEEE80211_IF_TYPE_IBSS)
1328                         data->value = sdata->u.sta.auth_algs;
1329                 else
1330                         ret = -EOPNOTSUPP;
1331                 break;
1332         default:
1333                 ret = -EOPNOTSUPP;
1334                 break;
1335         }
1336         return ret;
1337 }
1338
1339
1340 static int ieee80211_ioctl_siwencodeext(struct net_device *dev,
1341                                         struct iw_request_info *info,
1342                                         struct iw_point *erq, char *extra)
1343 {
1344         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1345         struct iw_encode_ext *ext = (struct iw_encode_ext *) extra;
1346         int alg, idx, i;
1347
1348         switch (ext->alg) {
1349         case IW_ENCODE_ALG_NONE:
1350                 alg = ALG_NONE;
1351                 break;
1352         case IW_ENCODE_ALG_WEP:
1353                 alg = ALG_WEP;
1354                 break;
1355         case IW_ENCODE_ALG_TKIP:
1356                 alg = ALG_TKIP;
1357                 break;
1358         case IW_ENCODE_ALG_CCMP:
1359                 alg = ALG_CCMP;
1360                 break;
1361         default:
1362                 return -EOPNOTSUPP;
1363         }
1364
1365         if (erq->flags & IW_ENCODE_DISABLED)
1366                 alg = ALG_NONE;
1367
1368         idx = erq->flags & IW_ENCODE_INDEX;
1369         if (idx < 1 || idx > 4) {
1370                 idx = -1;
1371                 if (!sdata->default_key)
1372                         idx = 0;
1373                 else for (i = 0; i < NUM_DEFAULT_KEYS; i++) {
1374                         if (sdata->default_key == sdata->keys[i]) {
1375                                 idx = i;
1376                                 break;
1377                         }
1378                 }
1379                 if (idx < 0)
1380                         return -EINVAL;
1381         } else
1382                 idx--;
1383
1384         return ieee80211_set_encryption(dev, ext->addr.sa_data, idx, alg,
1385                                         ext->ext_flags &
1386                                         IW_ENCODE_EXT_SET_TX_KEY,
1387                                         ext->key, ext->key_len);
1388 }
1389
1390
1391 static const struct iw_priv_args ieee80211_ioctl_priv[] = {
1392         { PRISM2_IOCTL_PRISM2_PARAM,
1393           IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 2, 0, "param" },
1394         { PRISM2_IOCTL_GET_PRISM2_PARAM,
1395           IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
1396           IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "get_param" },
1397 };
1398
1399 /* Structures to export the Wireless Handlers */
1400
1401 static const iw_handler ieee80211_handler[] =
1402 {
1403         (iw_handler) NULL,                              /* SIOCSIWCOMMIT */
1404         (iw_handler) ieee80211_ioctl_giwname,           /* SIOCGIWNAME */
1405         (iw_handler) NULL,                              /* SIOCSIWNWID */
1406         (iw_handler) NULL,                              /* SIOCGIWNWID */
1407         (iw_handler) ieee80211_ioctl_siwfreq,           /* SIOCSIWFREQ */
1408         (iw_handler) ieee80211_ioctl_giwfreq,           /* SIOCGIWFREQ */
1409         (iw_handler) ieee80211_ioctl_siwmode,           /* SIOCSIWMODE */
1410         (iw_handler) ieee80211_ioctl_giwmode,           /* SIOCGIWMODE */
1411         (iw_handler) NULL,                              /* SIOCSIWSENS */
1412         (iw_handler) NULL,                              /* SIOCGIWSENS */
1413         (iw_handler) NULL /* not used */,               /* SIOCSIWRANGE */
1414         (iw_handler) ieee80211_ioctl_giwrange,          /* SIOCGIWRANGE */
1415         (iw_handler) NULL /* not used */,               /* SIOCSIWPRIV */
1416         (iw_handler) NULL /* kernel code */,            /* SIOCGIWPRIV */
1417         (iw_handler) NULL /* not used */,               /* SIOCSIWSTATS */
1418         (iw_handler) NULL /* kernel code */,            /* SIOCGIWSTATS */
1419         iw_handler_set_spy,                             /* SIOCSIWSPY */
1420         iw_handler_get_spy,                             /* SIOCGIWSPY */
1421         iw_handler_set_thrspy,                          /* SIOCSIWTHRSPY */
1422         iw_handler_get_thrspy,                          /* SIOCGIWTHRSPY */
1423         (iw_handler) ieee80211_ioctl_siwap,             /* SIOCSIWAP */
1424         (iw_handler) ieee80211_ioctl_giwap,             /* SIOCGIWAP */
1425         (iw_handler) ieee80211_ioctl_siwmlme,           /* SIOCSIWMLME */
1426         (iw_handler) NULL,                              /* SIOCGIWAPLIST */
1427         (iw_handler) ieee80211_ioctl_siwscan,           /* SIOCSIWSCAN */
1428         (iw_handler) ieee80211_ioctl_giwscan,           /* SIOCGIWSCAN */
1429         (iw_handler) ieee80211_ioctl_siwessid,          /* SIOCSIWESSID */
1430         (iw_handler) ieee80211_ioctl_giwessid,          /* SIOCGIWESSID */
1431         (iw_handler) NULL,                              /* SIOCSIWNICKN */
1432         (iw_handler) NULL,                              /* SIOCGIWNICKN */
1433         (iw_handler) NULL,                              /* -- hole -- */
1434         (iw_handler) NULL,                              /* -- hole -- */
1435         (iw_handler) ieee80211_ioctl_siwrate,           /* SIOCSIWRATE */
1436         (iw_handler) ieee80211_ioctl_giwrate,           /* SIOCGIWRATE */
1437         (iw_handler) ieee80211_ioctl_siwrts,            /* SIOCSIWRTS */
1438         (iw_handler) ieee80211_ioctl_giwrts,            /* SIOCGIWRTS */
1439         (iw_handler) ieee80211_ioctl_siwfrag,           /* SIOCSIWFRAG */
1440         (iw_handler) ieee80211_ioctl_giwfrag,           /* SIOCGIWFRAG */
1441         (iw_handler) NULL,                              /* SIOCSIWTXPOW */
1442         (iw_handler) ieee80211_ioctl_giwtxpower,        /* SIOCGIWTXPOW */
1443         (iw_handler) ieee80211_ioctl_siwretry,          /* SIOCSIWRETRY */
1444         (iw_handler) ieee80211_ioctl_giwretry,          /* SIOCGIWRETRY */
1445         (iw_handler) ieee80211_ioctl_siwencode,         /* SIOCSIWENCODE */
1446         (iw_handler) ieee80211_ioctl_giwencode,         /* SIOCGIWENCODE */
1447         (iw_handler) NULL,                              /* SIOCSIWPOWER */
1448         (iw_handler) NULL,                              /* SIOCGIWPOWER */
1449         (iw_handler) NULL,                              /* -- hole -- */
1450         (iw_handler) NULL,                              /* -- hole -- */
1451         (iw_handler) ieee80211_ioctl_siwgenie,          /* SIOCSIWGENIE */
1452         (iw_handler) NULL,                              /* SIOCGIWGENIE */
1453         (iw_handler) ieee80211_ioctl_siwauth,           /* SIOCSIWAUTH */
1454         (iw_handler) ieee80211_ioctl_giwauth,           /* SIOCGIWAUTH */
1455         (iw_handler) ieee80211_ioctl_siwencodeext,      /* SIOCSIWENCODEEXT */
1456         (iw_handler) NULL,                              /* SIOCGIWENCODEEXT */
1457         (iw_handler) NULL,                              /* SIOCSIWPMKSA */
1458         (iw_handler) NULL,                              /* -- hole -- */
1459 };
1460
1461 static const iw_handler ieee80211_private_handler[] =
1462 {                                                       /* SIOCIWFIRSTPRIV + */
1463         (iw_handler) ieee80211_ioctl_prism2_param,      /* 0 */
1464         (iw_handler) ieee80211_ioctl_get_prism2_param,  /* 1 */
1465 };
1466
1467 const struct iw_handler_def ieee80211_iw_handler_def =
1468 {
1469         .num_standard   = ARRAY_SIZE(ieee80211_handler),
1470         .num_private    = ARRAY_SIZE(ieee80211_private_handler),
1471         .num_private_args = ARRAY_SIZE(ieee80211_ioctl_priv),
1472         .standard       = (iw_handler *) ieee80211_handler,
1473         .private        = (iw_handler *) ieee80211_private_handler,
1474         .private_args   = (struct iw_priv_args *) ieee80211_ioctl_priv,
1475         .get_wireless_stats = ieee80211_get_wireless_stats,
1476 };