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
  29
  30 /*
  31  * Wow. This ioctl interface is such crap, it's tied
  32  * to internal definitions. I hope it dies soon.
  33  */
  34 static int mode_to_hostapd_mode(enum ieee80211_phymode mode)
  35 {
  36         switch (mode) {
  37         case MODE_IEEE80211A:
  38                 return 0;
  39         case MODE_IEEE80211B:
  40                 return 1;
  41         case MODE_IEEE80211G:
  42                 return 3;
  43         case NUM_IEEE80211_MODES:
  44                 WARN_ON(1);
  45                 break;
  46         }
  47         WARN_ON(1);
  48         return -1;
  49 }
  50
  51 static enum ieee80211_phymode hostapd_mode_to_mode(int hostapd_mode)
  52 {
  53         switch (hostapd_mode) {
  54         case 0:
  55                 return MODE_IEEE80211A;
  56         case 1:
  57                 return MODE_IEEE80211B;
  58         case 3:
  59                 return MODE_IEEE80211G;
  60         }
  61         return NUM_IEEE80211_MODES;
  62 }
  63
  64 static int ieee80211_set_encryption(struct net_device *dev, u8 *sta_addr,
  65                                     int idx, int alg, int set_tx_key,
  66                                     const u8 *_key, size_t key_len)
  67 {
  68         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
  69         int ret = 0;
  70         struct sta_info *sta;
  71         struct ieee80211_key *key;
  72         struct ieee80211_sub_if_data *sdata;
  73
  74         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
  75
  76         if (idx < 0 || idx >= NUM_DEFAULT_KEYS) {
  77                 printk(KERN_DEBUG "%s: set_encrypt - invalid idx=%d\n",
  78                        dev->name, idx);
  79                 return -EINVAL;
  80         }
  81
  82         if (is_broadcast_ether_addr(sta_addr)) {
  83                 sta = NULL;
  84                 key = sdata->keys[idx];
  85         } else {
  86                 set_tx_key = 0;
  87                 /*
  88                  * According to the standard, the key index of a pairwise
  89                  * key must be zero. However, some AP are broken when it
  90                  * comes to WEP key indices, so we work around this.
  91                  */
  92                 if (idx != 0 && alg != ALG_WEP) {
  93                         printk(KERN_DEBUG "%s: set_encrypt - non-zero idx for "
  94                                "individual key\n", dev->name);
  95                         return -EINVAL;
  96                 }
  97
  98                 sta = sta_info_get(local, sta_addr);
  99                 if (!sta) {
 100 #ifdef CONFIG_MAC80211_VERBOSE_DEBUG
 101                         printk(KERN_DEBUG "%s: set_encrypt - unknown addr "
 102                                MAC_FMT "\n",
 103                                dev->name, MAC_ARG(sta_addr));
 104 #endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
 105
 106                         return -ENOENT;
 107                 }
 108
 109                 key = sta->key;
 110         }
 111
 112         if (alg == ALG_NONE) {
 113                 ieee80211_key_free(key);
 114                 key = NULL;
 115         } else {
 116                 /*
 117                  * Automatically frees any old key if present.
 118                  */
 119                 key = ieee80211_key_alloc(sdata, sta, alg, idx, key_len, _key);
 120                 if (!key) {
 121                         ret = -ENOMEM;
 122                         goto err_out;
 123                 }
 124         }
 125
 126         if (set_tx_key || (!sta && !sdata->default_key && key))
 127                 ieee80211_set_default_key(sdata, idx);
 128
 129         ret = 0;
 130  err_out:
 131         if (sta)
 132                 sta_info_put(sta);
 133         return ret;
 134 }
 135
 136 static int ieee80211_ioctl_siwgenie(struct net_device *dev,
 137                                     struct iw_request_info *info,
 138                                     struct iw_point *data, char *extra)
 139 {
 140         struct ieee80211_sub_if_data *sdata;
 141         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 142
 143         if (local->user_space_mlme)
 144                 return -EOPNOTSUPP;
 145
 146         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 147         if (sdata->type == IEEE80211_IF_TYPE_STA ||
 148             sdata->type == IEEE80211_IF_TYPE_IBSS) {
 149                 int ret = ieee80211_sta_set_extra_ie(dev, extra, data->length);
 150                 if (ret)
 151                         return ret;
 152                 sdata->u.sta.flags &= ~IEEE80211_STA_AUTO_BSSID_SEL;
 153                 ieee80211_sta_req_auth(dev, &sdata->u.sta);
 154                 return 0;
 155         }
 156
 157         if (sdata->type == IEEE80211_IF_TYPE_AP) {
 158                 kfree(sdata->u.ap.generic_elem);
 159                 sdata->u.ap.generic_elem = kmalloc(data->length, GFP_KERNEL);
 160                 if (!sdata->u.ap.generic_elem)
 161                         return -ENOMEM;
 162                 memcpy(sdata->u.ap.generic_elem, extra, data->length);
 163                 sdata->u.ap.generic_elem_len = data->length;
 164                 return ieee80211_if_config(dev);
 165         }
 166         return -EOPNOTSUPP;
 167 }
 168
 169 static int ieee80211_ioctl_giwname(struct net_device *dev,
 170                                    struct iw_request_info *info,
 171                                    char *name, char *extra)
 172 {
 173         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 174
 175         switch (local->hw.conf.phymode) {
 176         case MODE_IEEE80211A:
 177                 strcpy(name, "IEEE 802.11a");
 178                 break;
 179         case MODE_IEEE80211B:
 180                 strcpy(name, "IEEE 802.11b");
 181                 break;
 182         case MODE_IEEE80211G:
 183                 strcpy(name, "IEEE 802.11g");
 184                 break;
 185         default:
 186                 strcpy(name, "IEEE 802.11");
 187                 break;
 188         }
 189
 190         return 0;
 191 }
 192
 193
 194 static int ieee80211_ioctl_giwrange(struct net_device *dev,
 195                                  struct iw_request_info *info,
 196                                  struct iw_point *data, char *extra)
 197 {
 198         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 199         struct iw_range *range = (struct iw_range *) extra;
 200         struct ieee80211_hw_mode *mode = NULL;
 201         int c = 0;
 202
 203         data->length = sizeof(struct iw_range);
 204         memset(range, 0, sizeof(struct iw_range));
 205
 206         range->we_version_compiled = WIRELESS_EXT;
 207         range->we_version_source = 21;
 208         range->retry_capa = IW_RETRY_LIMIT;
 209         range->retry_flags = IW_RETRY_LIMIT;
 210         range->min_retry = 0;
 211         range->max_retry = 255;
 212         range->min_rts = 0;
 213         range->max_rts = 2347;
 214         range->min_frag = 256;
 215         range->max_frag = 2346;
 216
 217         range->encoding_size[0] = 5;
 218         range->encoding_size[1] = 13;
 219         range->num_encoding_sizes = 2;
 220         range->max_encoding_tokens = NUM_DEFAULT_KEYS;
 221
 222         range->max_qual.qual = local->hw.max_signal;
 223         range->max_qual.level = local->hw.max_rssi;
 224         range->max_qual.noise = local->hw.max_noise;
 225         range->max_qual.updated = local->wstats_flags;
 226
 227         range->avg_qual.qual = local->hw.max_signal/2;
 228         range->avg_qual.level = 0;
 229         range->avg_qual.noise = 0;
 230         range->avg_qual.updated = local->wstats_flags;
 231
 232         range->enc_capa = IW_ENC_CAPA_WPA | IW_ENC_CAPA_WPA2 |
 233                           IW_ENC_CAPA_CIPHER_TKIP | IW_ENC_CAPA_CIPHER_CCMP;
 234
 235         list_for_each_entry(mode, &local->modes_list, list) {
 236                 int i = 0;
 237
 238                 if (!(local->enabled_modes & (1 << mode->mode)) ||
 239                     (local->hw_modes & local->enabled_modes &
 240                      (1 << MODE_IEEE80211G) && mode->mode == MODE_IEEE80211B))
 241                         continue;
 242
 243                 while (i < mode->num_channels && c < IW_MAX_FREQUENCIES) {
 244                         struct ieee80211_channel *chan = &mode->channels[i];
 245
 246                         if (chan->flag & IEEE80211_CHAN_W_SCAN) {
 247                                 range->freq[c].i = chan->chan;
 248                                 range->freq[c].m = chan->freq * 100000;
 249                                 range->freq[c].e = 1;
 250                                 c++;
 251                         }
 252                         i++;
 253                 }
 254         }
 255         range->num_channels = c;
 256         range->num_frequency = c;
 257
 258         IW_EVENT_CAPA_SET_KERNEL(range->event_capa);
 259         IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWTHRSPY);
 260         IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWAP);
 261         IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWSCAN);
 262
 263         return 0;
 264 }
 265
 266
 267 static int ieee80211_ioctl_siwmode(struct net_device *dev,
 268                                    struct iw_request_info *info,
 269                                    __u32 *mode, char *extra)
 270 {
 271         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 272         int type;
 273
 274         if (sdata->type == IEEE80211_IF_TYPE_VLAN)
 275                 return -EOPNOTSUPP;
 276
 277         switch (*mode) {
 278         case IW_MODE_INFRA:
 279                 type = IEEE80211_IF_TYPE_STA;
 280                 break;
 281         case IW_MODE_ADHOC:
 282                 type = IEEE80211_IF_TYPE_IBSS;
 283                 break;
 284         case IW_MODE_MONITOR:
 285                 type = IEEE80211_IF_TYPE_MNTR;
 286                 break;
 287         default:
 288                 return -EINVAL;
 289         }
 290
 291         if (type == sdata->type)
 292                 return 0;
 293         if (netif_running(dev))
 294                 return -EBUSY;
 295
 296         ieee80211_if_reinit(dev);
 297         ieee80211_if_set_type(dev, type);
 298
 299         return 0;
 300 }
 301
 302
 303 static int ieee80211_ioctl_giwmode(struct net_device *dev,
 304                                    struct iw_request_info *info,
 305                                    __u32 *mode, char *extra)
 306 {
 307         struct ieee80211_sub_if_data *sdata;
 308
 309         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 310         switch (sdata->type) {
 311         case IEEE80211_IF_TYPE_AP:
 312                 *mode = IW_MODE_MASTER;
 313                 break;
 314         case IEEE80211_IF_TYPE_STA:
 315                 *mode = IW_MODE_INFRA;
 316                 break;
 317         case IEEE80211_IF_TYPE_IBSS:
 318                 *mode = IW_MODE_ADHOC;
 319                 break;
 320         case IEEE80211_IF_TYPE_MNTR:
 321                 *mode = IW_MODE_MONITOR;
 322                 break;
 323         case IEEE80211_IF_TYPE_WDS:
 324                 *mode = IW_MODE_REPEAT;
 325                 break;
 326         case IEEE80211_IF_TYPE_VLAN:
 327                 *mode = IW_MODE_SECOND;         /* FIXME */
 328                 break;
 329         default:
 330                 *mode = IW_MODE_AUTO;
 331                 break;
 332         }
 333         return 0;
 334 }
 335
 336 int ieee80211_set_channel(struct ieee80211_local *local, int channel, int freq)
 337 {
 338         struct ieee80211_hw_mode *mode;
 339         int c, set = 0;
 340         int ret = -EINVAL;
 341
 342         list_for_each_entry(mode, &local->modes_list, list) {
 343                 if (!(local->enabled_modes & (1 << mode->mode)))
 344                         continue;
 345                 for (c = 0; c < mode->num_channels; c++) {
 346                         struct ieee80211_channel *chan = &mode->channels[c];
 347                         if (chan->flag & IEEE80211_CHAN_W_SCAN &&
 348                             ((chan->chan == channel) || (chan->freq == freq))) {
 349                                 /* Use next_mode as the mode preference to
 350                                  * resolve non-unique channel numbers. */
 351                                 if (set && mode->mode != local->next_mode)
 352                                         continue;
 353
 354                                 local->oper_channel = chan;
 355                                 local->oper_hw_mode = mode;
 356                                 set++;
 357                         }
 358                 }
 359         }
 360
 361         if (set) {
 362                 if (local->sta_scanning)
 363                         ret = 0;
 364                 else
 365                         ret = ieee80211_hw_config(local);
 366
 367                 rate_control_clear(local);
 368         }
 369
 370         return ret;
 371 }
 372
 373 static int ieee80211_ioctl_siwfreq(struct net_device *dev,
 374                                    struct iw_request_info *info,
 375                                    struct iw_freq *freq, char *extra)
 376 {
 377         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 378         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 379
 380         if (sdata->type == IEEE80211_IF_TYPE_STA)
 381                 sdata->u.sta.flags &= ~IEEE80211_STA_AUTO_CHANNEL_SEL;
 382
 383         /* freq->e == 0: freq->m = channel; otherwise freq = m * 10^e */
 384         if (freq->e == 0) {
 385                 if (freq->m < 0) {
 386                         if (sdata->type == IEEE80211_IF_TYPE_STA)
 387                                 sdata->u.sta.flags |=
 388                                         IEEE80211_STA_AUTO_CHANNEL_SEL;
 389                         return 0;
 390                 } else
 391                         return ieee80211_set_channel(local, freq->m, -1);
 392         } else {
 393                 int i, div = 1000000;
 394                 for (i = 0; i < freq->e; i++)
 395                         div /= 10;
 396                 if (div > 0)
 397                         return ieee80211_set_channel(local, -1, freq->m / div);
 398                 else
 399                         return -EINVAL;
 400         }
 401 }
 402
 403
 404 static int ieee80211_ioctl_giwfreq(struct net_device *dev,
 405                                    struct iw_request_info *info,
 406                                    struct iw_freq *freq, char *extra)
 407 {
 408         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 409
 410         /* TODO: in station mode (Managed/Ad-hoc) might need to poll low-level
 411          * driver for the current channel with firmware-based management */
 412
 413         freq->m = local->hw.conf.freq;
 414         freq->e = 6;
 415
 416         return 0;
 417 }
 418
 419
 420 static int ieee80211_ioctl_siwessid(struct net_device *dev,
 421                                     struct iw_request_info *info,
 422                                     struct iw_point *data, char *ssid)
 423 {
 424         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 425         struct ieee80211_sub_if_data *sdata;
 426         size_t len = data->length;
 427
 428         /* iwconfig uses nul termination in SSID.. */
 429         if (len > 0 && ssid[len - 1] == '\0')
 430                 len--;
 431
 432         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 433         if (sdata->type == IEEE80211_IF_TYPE_STA ||
 434             sdata->type == IEEE80211_IF_TYPE_IBSS) {
 435                 int ret;
 436                 if (local->user_space_mlme) {
 437                         if (len > IEEE80211_MAX_SSID_LEN)
 438                                 return -EINVAL;
 439                         memcpy(sdata->u.sta.ssid, ssid, len);
 440                         sdata->u.sta.ssid_len = len;
 441                         return 0;
 442                 }
 443                 if (data->flags)
 444                         sdata->u.sta.flags &= ~IEEE80211_STA_AUTO_SSID_SEL;
 445                 else
 446                         sdata->u.sta.flags |= IEEE80211_STA_AUTO_SSID_SEL;
 447                 ret = ieee80211_sta_set_ssid(dev, ssid, len);
 448                 if (ret)
 449                         return ret;
 450                 ieee80211_sta_req_auth(dev, &sdata->u.sta);
 451                 return 0;
 452         }
 453
 454         if (sdata->type == IEEE80211_IF_TYPE_AP) {
 455                 memcpy(sdata->u.ap.ssid, ssid, len);
 456                 memset(sdata->u.ap.ssid + len, 0,
 457                        IEEE80211_MAX_SSID_LEN - len);
 458                 sdata->u.ap.ssid_len = len;
 459                 return ieee80211_if_config(dev);
 460         }
 461         return -EOPNOTSUPP;
 462 }
 463
 464
 465 static int ieee80211_ioctl_giwessid(struct net_device *dev,
 466                                     struct iw_request_info *info,
 467                                     struct iw_point *data, char *ssid)
 468 {
 469         size_t len;
 470
 471         struct ieee80211_sub_if_data *sdata;
 472         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 473         if (sdata->type == IEEE80211_IF_TYPE_STA ||
 474             sdata->type == IEEE80211_IF_TYPE_IBSS) {
 475                 int res = ieee80211_sta_get_ssid(dev, ssid, &len);
 476                 if (res == 0) {
 477                         data->length = len;
 478                         data->flags = 1;
 479                 } else
 480                         data->flags = 0;
 481                 return res;
 482         }
 483
 484         if (sdata->type == IEEE80211_IF_TYPE_AP) {
 485                 len = sdata->u.ap.ssid_len;
 486                 if (len > IW_ESSID_MAX_SIZE)
 487                         len = IW_ESSID_MAX_SIZE;
 488                 memcpy(ssid, sdata->u.ap.ssid, len);
 489                 data->length = len;
 490                 data->flags = 1;
 491                 return 0;
 492         }
 493         return -EOPNOTSUPP;
 494 }
 495
 496
 497 static int ieee80211_ioctl_siwap(struct net_device *dev,
 498                                  struct iw_request_info *info,
 499                                  struct sockaddr *ap_addr, char *extra)
 500 {
 501         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 502         struct ieee80211_sub_if_data *sdata;
 503
 504         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 505         if (sdata->type == IEEE80211_IF_TYPE_STA ||
 506             sdata->type == IEEE80211_IF_TYPE_IBSS) {
 507                 int ret;
 508                 if (local->user_space_mlme) {
 509                         memcpy(sdata->u.sta.bssid, (u8 *) &ap_addr->sa_data,
 510                                ETH_ALEN);
 511                         return 0;
 512                 }
 513                 if (is_zero_ether_addr((u8 *) &ap_addr->sa_data))
 514                         sdata->u.sta.flags |= IEEE80211_STA_AUTO_BSSID_SEL |
 515                                 IEEE80211_STA_AUTO_CHANNEL_SEL;
 516                 else if (is_broadcast_ether_addr((u8 *) &ap_addr->sa_data))
 517                         sdata->u.sta.flags |= IEEE80211_STA_AUTO_BSSID_SEL;
 518                 else
 519                         sdata->u.sta.flags &= ~IEEE80211_STA_AUTO_BSSID_SEL;
 520                 ret = ieee80211_sta_set_bssid(dev, (u8 *) &ap_addr->sa_data);
 521                 if (ret)
 522                         return ret;
 523                 ieee80211_sta_req_auth(dev, &sdata->u.sta);
 524                 return 0;
 525         } else if (sdata->type == IEEE80211_IF_TYPE_WDS) {
 526                 if (memcmp(sdata->u.wds.remote_addr, (u8 *) &ap_addr->sa_data,
 527                            ETH_ALEN) == 0)
 528                         return 0;
 529                 return ieee80211_if_update_wds(dev, (u8 *) &ap_addr->sa_data);
 530         }
 531
 532         return -EOPNOTSUPP;
 533 }
 534
 535
 536 static int ieee80211_ioctl_giwap(struct net_device *dev,
 537                                  struct iw_request_info *info,
 538                                  struct sockaddr *ap_addr, char *extra)
 539 {
 540         struct ieee80211_sub_if_data *sdata;
 541
 542         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 543         if (sdata->type == IEEE80211_IF_TYPE_STA ||
 544             sdata->type == IEEE80211_IF_TYPE_IBSS) {
 545                 ap_addr->sa_family = ARPHRD_ETHER;
 546                 memcpy(&ap_addr->sa_data, sdata->u.sta.bssid, ETH_ALEN);
 547                 return 0;
 548         } else if (sdata->type == IEEE80211_IF_TYPE_WDS) {
 549                 ap_addr->sa_family = ARPHRD_ETHER;
 550                 memcpy(&ap_addr->sa_data, sdata->u.wds.remote_addr, ETH_ALEN);
 551                 return 0;
 552         }
 553
 554         return -EOPNOTSUPP;
 555 }
 556
 557
 558 static int ieee80211_ioctl_siwscan(struct net_device *dev,
 559                                    struct iw_request_info *info,
 560                                    struct iw_point *data, char *extra)
 561 {
 562         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 563         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 564         u8 *ssid = NULL;
 565         size_t ssid_len = 0;
 566
 567         if (!netif_running(dev))
 568                 return -ENETDOWN;
 569
 570         switch (sdata->type) {
 571         case IEEE80211_IF_TYPE_STA:
 572         case IEEE80211_IF_TYPE_IBSS:
 573                 if (local->scan_flags & IEEE80211_SCAN_MATCH_SSID) {
 574                         ssid = sdata->u.sta.ssid;
 575                         ssid_len = sdata->u.sta.ssid_len;
 576                 }
 577                 break;
 578         case IEEE80211_IF_TYPE_AP:
 579                 if (local->scan_flags & IEEE80211_SCAN_MATCH_SSID) {
 580                         ssid = sdata->u.ap.ssid;
 581                         ssid_len = sdata->u.ap.ssid_len;
 582                 }
 583                 break;
 584         default:
 585                 return -EOPNOTSUPP;
 586         }
 587
 588         return ieee80211_sta_req_scan(dev, ssid, ssid_len);
 589 }
 590
 591
 592 static int ieee80211_ioctl_giwscan(struct net_device *dev,
 593                                    struct iw_request_info *info,
 594                                    struct iw_point *data, char *extra)
 595 {
 596         int res;
 597         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 598         if (local->sta_scanning)
 599                 return -EAGAIN;
 600         res = ieee80211_sta_scan_results(dev, extra, data->length);
 601         if (res >= 0) {
 602                 data->length = res;
 603                 return 0;
 604         }
 605         data->length = 0;
 606         return res;
 607 }
 608
 609
 610 static int ieee80211_ioctl_siwrate(struct net_device *dev,
 611                                   struct iw_request_info *info,
 612                                   struct iw_param *rate, char *extra)
 613 {
 614         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 615         struct ieee80211_hw_mode *mode;
 616         int i;
 617         u32 target_rate = rate->value / 100000;
 618         struct ieee80211_sub_if_data *sdata;
 619
 620         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 621         if (!sdata->bss)
 622                 return -ENODEV;
 623         mode = local->oper_hw_mode;
 624         /* target_rate = -1, rate->fixed = 0 means auto only, so use all rates
 625          * target_rate = X, rate->fixed = 1 means only rate X
 626          * target_rate = X, rate->fixed = 0 means all rates <= X */
 627         sdata->bss->max_ratectrl_rateidx = -1;
 628         sdata->bss->force_unicast_rateidx = -1;
 629         if (rate->value < 0)
 630                 return 0;
 631         for (i=0; i< mode->num_rates; i++) {
 632                 struct ieee80211_rate *rates = &mode->rates[i];
 633                 int this_rate = rates->rate;
 634
 635                 if (target_rate == this_rate) {
 636                         sdata->bss->max_ratectrl_rateidx = i;
 637                         if (rate->fixed)
 638                                 sdata->bss->force_unicast_rateidx = i;
 639                         break;
 640                 }
 641         }
 642         return 0;
 643 }
 644
 645 static int ieee80211_ioctl_giwrate(struct net_device *dev,
 646                                   struct iw_request_info *info,
 647                                   struct iw_param *rate, char *extra)
 648 {
 649         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 650         struct sta_info *sta;
 651         struct ieee80211_sub_if_data *sdata;
 652
 653         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 654         if (sdata->type == IEEE80211_IF_TYPE_STA)
 655                 sta = sta_info_get(local, sdata->u.sta.bssid);
 656         else
 657                 return -EOPNOTSUPP;
 658         if (!sta)
 659                 return -ENODEV;
 660         if (sta->txrate < local->oper_hw_mode->num_rates)
 661                 rate->value = local->oper_hw_mode->rates[sta->txrate].rate * 100000;
 662         else
 663                 rate->value = 0;
 664         sta_info_put(sta);
 665         return 0;
 666 }
 667
 668 static int ieee80211_ioctl_giwtxpower(struct net_device *dev,
 669                                    struct iw_request_info *info,
 670                                    union iwreq_data *data, char *extra)
 671 {
 672         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 673
 674         data->txpower.fixed = 1;
 675         data->txpower.disabled = !(local->hw.conf.radio_enabled);
 676         data->txpower.value = local->hw.conf.power_level;
 677         data->txpower.flags = IW_TXPOW_DBM;
 678
 679         return 0;
 680 }
 681
 682 static int ieee80211_ioctl_siwrts(struct net_device *dev,
 683                                   struct iw_request_info *info,
 684                                   struct iw_param *rts, char *extra)
 685 {
 686         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 687
 688         if (rts->disabled)
 689                 local->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
 690         else if (rts->value < 0 || rts->value > IEEE80211_MAX_RTS_THRESHOLD)
 691                 return -EINVAL;
 692         else
 693                 local->rts_threshold = rts->value;
 694
 695         /* If the wlan card performs RTS/CTS in hardware/firmware,
 696          * configure it here */
 697
 698         if (local->ops->set_rts_threshold)
 699                 local->ops->set_rts_threshold(local_to_hw(local),
 700                                              local->rts_threshold);
 701
 702         return 0;
 703 }
 704
 705 static int ieee80211_ioctl_giwrts(struct net_device *dev,
 706                                   struct iw_request_info *info,
 707                                   struct iw_param *rts, char *extra)
 708 {
 709         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 710
 711         rts->value = local->rts_threshold;
 712         rts->disabled = (rts->value >= IEEE80211_MAX_RTS_THRESHOLD);
 713         rts->fixed = 1;
 714
 715         return 0;
 716 }
 717
 718
 719 static int ieee80211_ioctl_siwfrag(struct net_device *dev,
 720                                    struct iw_request_info *info,
 721                                    struct iw_param *frag, char *extra)
 722 {
 723         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 724
 725         if (frag->disabled)
 726                 local->fragmentation_threshold = IEEE80211_MAX_FRAG_THRESHOLD;
 727         else if (frag->value < 256 ||
 728                  frag->value > IEEE80211_MAX_FRAG_THRESHOLD)
 729                 return -EINVAL;
 730         else {
 731                 /* Fragment length must be even, so strip LSB. */
 732                 local->fragmentation_threshold = frag->value & ~0x1;
 733         }
 734
 735         /* If the wlan card performs fragmentation in hardware/firmware,
 736          * configure it here */
 737
 738         if (local->ops->set_frag_threshold)
 739                 local->ops->set_frag_threshold(
 740                         local_to_hw(local),
 741                         local->fragmentation_threshold);
 742
 743         return 0;
 744 }
 745
 746 static int ieee80211_ioctl_giwfrag(struct net_device *dev,
 747                                    struct iw_request_info *info,
 748                                    struct iw_param *frag, char *extra)
 749 {
 750         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 751
 752         frag->value = local->fragmentation_threshold;
 753         frag->disabled = (frag->value >= IEEE80211_MAX_RTS_THRESHOLD);
 754         frag->fixed = 1;
 755
 756         return 0;
 757 }
 758
 759
 760 static int ieee80211_ioctl_siwretry(struct net_device *dev,
 761                                     struct iw_request_info *info,
 762                                     struct iw_param *retry, char *extra)
 763 {
 764         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 765
 766         if (retry->disabled ||
 767             (retry->flags & IW_RETRY_TYPE) != IW_RETRY_LIMIT)
 768                 return -EINVAL;
 769
 770         if (retry->flags & IW_RETRY_MAX)
 771                 local->long_retry_limit = retry->value;
 772         else if (retry->flags & IW_RETRY_MIN)
 773                 local->short_retry_limit = retry->value;
 774         else {
 775                 local->long_retry_limit = retry->value;
 776                 local->short_retry_limit = retry->value;
 777         }
 778
 779         if (local->ops->set_retry_limit) {
 780                 return local->ops->set_retry_limit(
 781                         local_to_hw(local),
 782                         local->short_retry_limit,
 783                         local->long_retry_limit);
 784         }
 785
 786         return 0;
 787 }
 788
 789
 790 static int ieee80211_ioctl_giwretry(struct net_device *dev,
 791                                     struct iw_request_info *info,
 792                                     struct iw_param *retry, char *extra)
 793 {
 794         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 795
 796         retry->disabled = 0;
 797         if (retry->flags == 0 || retry->flags & IW_RETRY_MIN) {
 798                 /* first return min value, iwconfig will ask max value
 799                  * later if needed */
 800                 retry->flags |= IW_RETRY_LIMIT;
 801                 retry->value = local->short_retry_limit;
 802                 if (local->long_retry_limit != local->short_retry_limit)
 803                         retry->flags |= IW_RETRY_MIN;
 804                 return 0;
 805         }
 806         if (retry->flags & IW_RETRY_MAX) {
 807                 retry->flags = IW_RETRY_LIMIT | IW_RETRY_MAX;
 808                 retry->value = local->long_retry_limit;
 809         }
 810
 811         return 0;
 812 }
 813
 814 static int ieee80211_ioctl_prism2_param(struct net_device *dev,
 815                                         struct iw_request_info *info,
 816                                         void *wrqu, char *extra)
 817 {
 818         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 819         struct ieee80211_sub_if_data *sdata;
 820         int *i = (int *) extra;
 821         int param = *i;
 822         int value = *(i + 1);
 823         int ret = 0;
 824         int mode;
 825
 826         if (!capable(CAP_NET_ADMIN))
 827                 return -EPERM;
 828
 829         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 830
 831         switch (param) {
 832         case PRISM2_PARAM_IEEE_802_1X:
 833                 if (local->ops->set_ieee8021x)
 834                         ret = local->ops->set_ieee8021x(local_to_hw(local),
 835                                                         value);
 836                 if (ret)
 837                         printk(KERN_DEBUG "%s: failed to set IEEE 802.1X (%d) "
 838                                "for low-level driver\n", dev->name, value);
 839                 else
 840                         sdata->ieee802_1x = value;
 841                 break;
 842
 843         case PRISM2_PARAM_CTS_PROTECT_ERP_FRAMES:
 844                 if (sdata->type == IEEE80211_IF_TYPE_AP) {
 845                         if (value)
 846                                 sdata->flags |= IEEE80211_SDATA_USE_PROTECTION;
 847                         else
 848                                 sdata->flags &= ~IEEE80211_SDATA_USE_PROTECTION;
 849                         ieee80211_erp_info_change_notify(dev,
 850                                         IEEE80211_ERP_CHANGE_PROTECTION);
 851                 } else {
 852                         ret = -ENOENT;
 853                 }
 854                 break;
 855
 856         case PRISM2_PARAM_PREAMBLE:
 857                 if (sdata->type == IEEE80211_IF_TYPE_AP) {
 858                         if (value)
 859                                 sdata->flags |= IEEE80211_SDATA_SHORT_PREAMBLE;
 860                         else
 861                                 sdata->flags &= ~IEEE80211_SDATA_SHORT_PREAMBLE;
 862                         ieee80211_erp_info_change_notify(dev,
 863                                         IEEE80211_ERP_CHANGE_PREAMBLE);
 864                 } else {
 865                         ret = -ENOENT;
 866                 }
 867                 break;
 868
 869         case PRISM2_PARAM_SHORT_SLOT_TIME:
 870                 if (value)
 871                         local->hw.conf.flags |= IEEE80211_CONF_SHORT_SLOT_TIME;
 872                 else
 873                         local->hw.conf.flags &= ~IEEE80211_CONF_SHORT_SLOT_TIME;
 874                 if (ieee80211_hw_config(local))
 875                         ret = -EINVAL;
 876                 break;
 877
 878         case PRISM2_PARAM_NEXT_MODE:
 879                 local->next_mode = hostapd_mode_to_mode(value);
 880                 break;
 881
 882         case PRISM2_PARAM_KEY_TX_RX_THRESHOLD:
 883                 local->key_tx_rx_threshold = value;
 884                 break;
 885
 886         case PRISM2_PARAM_WIFI_WME_NOACK_TEST:
 887                 local->wifi_wme_noack_test = value;
 888                 break;
 889
 890         case PRISM2_PARAM_SCAN_FLAGS:
 891                 local->scan_flags = value;
 892                 break;
 893
 894         case PRISM2_PARAM_MIXED_CELL:
 895                 if (sdata->type != IEEE80211_IF_TYPE_STA &&
 896                     sdata->type != IEEE80211_IF_TYPE_IBSS)
 897                         ret = -EINVAL;
 898                 else {
 899                         if (value)
 900                                 sdata->u.sta.flags |= IEEE80211_STA_MIXED_CELL;
 901                         else
 902                                 sdata->u.sta.flags &= ~IEEE80211_STA_MIXED_CELL;
 903                 }
 904                 break;
 905
 906         case PRISM2_PARAM_HW_MODES:
 907                 mode = 1;
 908                 local->enabled_modes = 0;
 909                 while (value) {
 910                         if (value & 1)
 911                                 local->enabled_modes |=
 912                                         hostapd_mode_to_mode(mode);
 913                         mode <<= 1;
 914                         value >>= 1;
 915                 }
 916                 break;
 917
 918         case PRISM2_PARAM_CREATE_IBSS:
 919                 if (sdata->type != IEEE80211_IF_TYPE_IBSS)
 920                         ret = -EINVAL;
 921                 else {
 922                         if (value)
 923                                 sdata->u.sta.flags |= IEEE80211_STA_CREATE_IBSS;
 924                         else
 925                                 sdata->u.sta.flags &= ~IEEE80211_STA_CREATE_IBSS;
 926                 }
 927                 break;
 928         case PRISM2_PARAM_WMM_ENABLED:
 929                 if (sdata->type != IEEE80211_IF_TYPE_STA &&
 930                     sdata->type != IEEE80211_IF_TYPE_IBSS)
 931                         ret = -EINVAL;
 932                 else {
 933                         if (value)
 934                                 sdata->u.sta.flags |= IEEE80211_STA_WMM_ENABLED;
 935                         else
 936                                 sdata->u.sta.flags &= ~IEEE80211_STA_WMM_ENABLED;
 937                 }
 938                 break;
 939         default:
 940                 ret = -EOPNOTSUPP;
 941                 break;
 942         }
 943
 944         return ret;
 945 }
 946
 947
 948 static int ieee80211_ioctl_get_prism2_param(struct net_device *dev,
 949                                             struct iw_request_info *info,
 950                                             void *wrqu, char *extra)
 951 {
 952         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 953         struct ieee80211_sub_if_data *sdata;
 954         int *param = (int *) extra;
 955         int ret = 0;
 956         int mode;
 957
 958         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 959
 960         switch (*param) {
 961         case PRISM2_PARAM_IEEE_802_1X:
 962                 *param = sdata->ieee802_1x;
 963                 break;
 964
 965         case PRISM2_PARAM_CTS_PROTECT_ERP_FRAMES:
 966                 *param = !!(sdata->flags & IEEE80211_SDATA_USE_PROTECTION);
 967                 break;
 968
 969         case PRISM2_PARAM_PREAMBLE:
 970                 *param = !!(sdata->flags & IEEE80211_SDATA_SHORT_PREAMBLE);
 971                 break;
 972
 973         case PRISM2_PARAM_SHORT_SLOT_TIME:
 974                 *param = !!(local->hw.conf.flags & IEEE80211_CONF_SHORT_SLOT_TIME);
 975                 break;
 976
 977         case PRISM2_PARAM_NEXT_MODE:
 978                 *param = local->next_mode;
 979                 break;
 980
 981         case PRISM2_PARAM_KEY_TX_RX_THRESHOLD:
 982                 *param = local->key_tx_rx_threshold;
 983                 break;
 984
 985         case PRISM2_PARAM_WIFI_WME_NOACK_TEST:
 986                 *param = local->wifi_wme_noack_test;
 987                 break;
 988
 989         case PRISM2_PARAM_SCAN_FLAGS:
 990                 *param = local->scan_flags;
 991                 break;
 992
 993         case PRISM2_PARAM_HW_MODES:
 994                 mode = 0;
 995                 *param = 0;
 996                 while (mode < NUM_IEEE80211_MODES) {
 997                         if (local->enabled_modes & (1<<mode))
 998                                 *param |= mode_to_hostapd_mode(1<<mode);
 999                         mode++;
1000                 }
1001                 break;
1002
1003         case PRISM2_PARAM_CREATE_IBSS:
1004                 if (sdata->type != IEEE80211_IF_TYPE_IBSS)
1005                         ret = -EINVAL;
1006                 else
1007                         *param = !!(sdata->u.sta.flags &
1008                                         IEEE80211_STA_CREATE_IBSS);
1009                 break;
1010
1011         case PRISM2_PARAM_MIXED_CELL:
1012                 if (sdata->type != IEEE80211_IF_TYPE_STA &&
1013                     sdata->type != IEEE80211_IF_TYPE_IBSS)
1014                         ret = -EINVAL;
1015                 else
1016                         *param = !!(sdata->u.sta.flags &
1017                                         IEEE80211_STA_MIXED_CELL);
1018                 break;
1019
1020         case PRISM2_PARAM_WMM_ENABLED:
1021                 if (sdata->type != IEEE80211_IF_TYPE_STA &&
1022                     sdata->type != IEEE80211_IF_TYPE_IBSS)
1023                         ret = -EINVAL;
1024                 else
1025                         *param = !!(sdata->u.sta.flags &
1026                                         IEEE80211_STA_WMM_ENABLED);
1027                 break;
1028         default:
1029                 ret = -EOPNOTSUPP;
1030                 break;
1031         }
1032
1033         return ret;
1034 }
1035
1036 static int ieee80211_ioctl_siwmlme(struct net_device *dev,
1037                                    struct iw_request_info *info,
1038                                    struct iw_point *data, char *extra)
1039 {
1040         struct ieee80211_sub_if_data *sdata;
1041         struct iw_mlme *mlme = (struct iw_mlme *) extra;
1042
1043         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1044         if (sdata->type != IEEE80211_IF_TYPE_STA &&
1045             sdata->type != IEEE80211_IF_TYPE_IBSS)
1046                 return -EINVAL;
1047
1048         switch (mlme->cmd) {
1049         case IW_MLME_DEAUTH:
1050                 /* TODO: mlme->addr.sa_data */
1051                 return ieee80211_sta_deauthenticate(dev, mlme->reason_code);
1052         case IW_MLME_DISASSOC:
1053                 /* TODO: mlme->addr.sa_data */
1054                 return ieee80211_sta_disassociate(dev, mlme->reason_code);
1055         default:
1056                 return -EOPNOTSUPP;
1057         }
1058 }
1059
1060
1061 static int ieee80211_ioctl_siwencode(struct net_device *dev,
1062                                      struct iw_request_info *info,
1063                                      struct iw_point *erq, char *keybuf)
1064 {
1065         struct ieee80211_sub_if_data *sdata;
1066         int idx, i, alg = ALG_WEP;
1067         u8 bcaddr[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
1068
1069         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1070
1071         idx = erq->flags & IW_ENCODE_INDEX;
1072         if (idx == 0) {
1073                 if (sdata->default_key)
1074                         for (i = 0; i < NUM_DEFAULT_KEYS; i++) {
1075                                 if (sdata->default_key == sdata->keys[i]) {
1076                                         idx = i;
1077                                         break;
1078                                 }
1079                         }
1080         } else if (idx < 1 || idx > 4)
1081                 return -EINVAL;
1082         else
1083                 idx--;
1084
1085         if (erq->flags & IW_ENCODE_DISABLED)
1086                 alg = ALG_NONE;
1087         else if (erq->length == 0) {
1088                 /* No key data - just set the default TX key index */
1089                 ieee80211_set_default_key(sdata, idx);
1090                 return 0;
1091         }
1092
1093         return ieee80211_set_encryption(
1094                 dev, bcaddr,
1095                 idx, alg,
1096                 !sdata->default_key,
1097                 keybuf, erq->length);
1098 }
1099
1100
1101 static int ieee80211_ioctl_giwencode(struct net_device *dev,
1102                                      struct iw_request_info *info,
1103                                      struct iw_point *erq, char *key)
1104 {
1105         struct ieee80211_sub_if_data *sdata;
1106         int idx, i;
1107
1108         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1109
1110         idx = erq->flags & IW_ENCODE_INDEX;
1111         if (idx < 1 || idx > 4) {
1112                 idx = -1;
1113                 if (!sdata->default_key)
1114                         idx = 0;
1115                 else for (i = 0; i < NUM_DEFAULT_KEYS; i++) {
1116                         if (sdata->default_key == sdata->keys[i]) {
1117                                 idx = i;
1118                                 break;
1119                         }
1120                 }
1121                 if (idx < 0)
1122                         return -EINVAL;
1123         } else
1124                 idx--;
1125
1126         erq->flags = idx + 1;
1127
1128         if (!sdata->keys[idx]) {
1129                 erq->length = 0;
1130                 erq->flags |= IW_ENCODE_DISABLED;
1131                 return 0;
1132         }
1133
1134         memcpy(key, sdata->keys[idx]->conf.key,
1135                min_t(int, erq->length, sdata->keys[idx]->conf.keylen));
1136         erq->length = sdata->keys[idx]->conf.keylen;
1137         erq->flags |= IW_ENCODE_ENABLED;
1138
1139         return 0;
1140 }
1141
1142 static int ieee80211_ioctl_siwauth(struct net_device *dev,
1143                                    struct iw_request_info *info,
1144                                    struct iw_param *data, char *extra)
1145 {
1146         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1147         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1148         int ret = 0;
1149
1150         switch (data->flags & IW_AUTH_INDEX) {
1151         case IW_AUTH_WPA_VERSION:
1152         case IW_AUTH_CIPHER_PAIRWISE:
1153         case IW_AUTH_CIPHER_GROUP:
1154         case IW_AUTH_WPA_ENABLED:
1155         case IW_AUTH_RX_UNENCRYPTED_EAPOL:
1156                 break;
1157         case IW_AUTH_KEY_MGMT:
1158                 if (sdata->type != IEEE80211_IF_TYPE_STA)
1159                         ret = -EINVAL;
1160                 else {
1161                         /*
1162                          * Key management was set by wpa_supplicant,
1163                          * we only need this to associate to a network
1164                          * that has privacy enabled regardless of not
1165                          * having a key.
1166                          */
1167                         sdata->u.sta.key_management_enabled = !!data->value;
1168                 }
1169                 break;
1170         case IW_AUTH_80211_AUTH_ALG:
1171                 if (sdata->type == IEEE80211_IF_TYPE_STA ||
1172                     sdata->type == IEEE80211_IF_TYPE_IBSS)
1173                         sdata->u.sta.auth_algs = data->value;
1174                 else
1175                         ret = -EOPNOTSUPP;
1176                 break;
1177         case IW_AUTH_PRIVACY_INVOKED:
1178                 if (local->ops->set_privacy_invoked)
1179                         ret = local->ops->set_privacy_invoked(
1180                                         local_to_hw(local), data->value);
1181                 break;
1182         default:
1183                 ret = -EOPNOTSUPP;
1184                 break;
1185         }
1186         return ret;
1187 }
1188
1189 /* Get wireless statistics.  Called by /proc/net/wireless and by SIOCGIWSTATS */
1190 static struct iw_statistics *ieee80211_get_wireless_stats(struct net_device *dev)
1191 {
1192         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1193         struct iw_statistics *wstats = &local->wstats;
1194         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1195         struct sta_info *sta = NULL;
1196
1197         if (sdata->type == IEEE80211_IF_TYPE_STA ||
1198             sdata->type == IEEE80211_IF_TYPE_IBSS)
1199                 sta = sta_info_get(local, sdata->u.sta.bssid);
1200         if (!sta) {
1201                 wstats->discard.fragment = 0;
1202                 wstats->discard.misc = 0;
1203                 wstats->qual.qual = 0;
1204                 wstats->qual.level = 0;
1205                 wstats->qual.noise = 0;
1206                 wstats->qual.updated = IW_QUAL_ALL_INVALID;
1207         } else {
1208                 wstats->qual.level = sta->last_rssi;
1209                 wstats->qual.qual = sta->last_signal;
1210                 wstats->qual.noise = sta->last_noise;
1211                 wstats->qual.updated = local->wstats_flags;
1212                 sta_info_put(sta);
1213         }
1214         return wstats;
1215 }
1216
1217 static int ieee80211_ioctl_giwauth(struct net_device *dev,
1218                                    struct iw_request_info *info,
1219                                    struct iw_param *data, char *extra)
1220 {
1221         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1222         int ret = 0;
1223
1224         switch (data->flags & IW_AUTH_INDEX) {
1225         case IW_AUTH_80211_AUTH_ALG:
1226                 if (sdata->type == IEEE80211_IF_TYPE_STA ||
1227                     sdata->type == IEEE80211_IF_TYPE_IBSS)
1228                         data->value = sdata->u.sta.auth_algs;
1229                 else
1230                         ret = -EOPNOTSUPP;
1231                 break;
1232         default:
1233                 ret = -EOPNOTSUPP;
1234                 break;
1235         }
1236         return ret;
1237 }
1238
1239
1240 static int ieee80211_ioctl_siwencodeext(struct net_device *dev,
1241                                         struct iw_request_info *info,
1242                                         struct iw_point *erq, char *extra)
1243 {
1244         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1245         struct iw_encode_ext *ext = (struct iw_encode_ext *) extra;
1246         int alg, idx, i;
1247
1248         switch (ext->alg) {
1249         case IW_ENCODE_ALG_NONE:
1250                 alg = ALG_NONE;
1251                 break;
1252         case IW_ENCODE_ALG_WEP:
1253                 alg = ALG_WEP;
1254                 break;
1255         case IW_ENCODE_ALG_TKIP:
1256                 alg = ALG_TKIP;
1257                 break;
1258         case IW_ENCODE_ALG_CCMP:
1259                 alg = ALG_CCMP;
1260                 break;
1261         default:
1262                 return -EOPNOTSUPP;
1263         }
1264
1265         if (erq->flags & IW_ENCODE_DISABLED)
1266                 alg = ALG_NONE;
1267
1268         idx = erq->flags & IW_ENCODE_INDEX;
1269         if (idx < 1 || idx > 4) {
1270                 idx = -1;
1271                 if (!sdata->default_key)
1272                         idx = 0;
1273                 else for (i = 0; i < NUM_DEFAULT_KEYS; i++) {
1274                         if (sdata->default_key == sdata->keys[i]) {
1275                                 idx = i;
1276                                 break;
1277                         }
1278                 }
1279                 if (idx < 0)
1280                         return -EINVAL;
1281         } else
1282                 idx--;
1283
1284         return ieee80211_set_encryption(dev, ext->addr.sa_data, idx, alg,
1285                                         ext->ext_flags &
1286                                         IW_ENCODE_EXT_SET_TX_KEY,
1287                                         ext->key, ext->key_len);
1288 }
1289
1290
1291 static const struct iw_priv_args ieee80211_ioctl_priv[] = {
1292         { PRISM2_IOCTL_PRISM2_PARAM,
1293           IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 2, 0, "param" },
1294         { PRISM2_IOCTL_GET_PRISM2_PARAM,
1295           IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
1296           IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "get_param" },
1297 };
1298
1299 /* Structures to export the Wireless Handlers */
1300
1301 static const iw_handler ieee80211_handler[] =
1302 {
1303         (iw_handler) NULL,                              /* SIOCSIWCOMMIT */
1304         (iw_handler) ieee80211_ioctl_giwname,           /* SIOCGIWNAME */
1305         (iw_handler) NULL,                              /* SIOCSIWNWID */
1306         (iw_handler) NULL,                              /* SIOCGIWNWID */
1307         (iw_handler) ieee80211_ioctl_siwfreq,           /* SIOCSIWFREQ */
1308         (iw_handler) ieee80211_ioctl_giwfreq,           /* SIOCGIWFREQ */
1309         (iw_handler) ieee80211_ioctl_siwmode,           /* SIOCSIWMODE */
1310         (iw_handler) ieee80211_ioctl_giwmode,           /* SIOCGIWMODE */
1311         (iw_handler) NULL,                              /* SIOCSIWSENS */
1312         (iw_handler) NULL,                              /* SIOCGIWSENS */
1313         (iw_handler) NULL /* not used */,               /* SIOCSIWRANGE */
1314         (iw_handler) ieee80211_ioctl_giwrange,          /* SIOCGIWRANGE */
1315         (iw_handler) NULL /* not used */,               /* SIOCSIWPRIV */
1316         (iw_handler) NULL /* kernel code */,            /* SIOCGIWPRIV */
1317         (iw_handler) NULL /* not used */,               /* SIOCSIWSTATS */
1318         (iw_handler) NULL /* kernel code */,            /* SIOCGIWSTATS */
1319         (iw_handler) NULL,                              /* SIOCSIWSPY */
1320         (iw_handler) NULL,                              /* SIOCGIWSPY */
1321         (iw_handler) NULL,                              /* SIOCSIWTHRSPY */
1322         (iw_handler) NULL,                              /* SIOCGIWTHRSPY */
1323         (iw_handler) ieee80211_ioctl_siwap,             /* SIOCSIWAP */
1324         (iw_handler) ieee80211_ioctl_giwap,             /* SIOCGIWAP */
1325         (iw_handler) ieee80211_ioctl_siwmlme,           /* SIOCSIWMLME */
1326         (iw_handler) NULL,                              /* SIOCGIWAPLIST */
1327         (iw_handler) ieee80211_ioctl_siwscan,           /* SIOCSIWSCAN */
1328         (iw_handler) ieee80211_ioctl_giwscan,           /* SIOCGIWSCAN */
1329         (iw_handler) ieee80211_ioctl_siwessid,          /* SIOCSIWESSID */
1330         (iw_handler) ieee80211_ioctl_giwessid,          /* SIOCGIWESSID */
1331         (iw_handler) NULL,                              /* SIOCSIWNICKN */
1332         (iw_handler) NULL,                              /* SIOCGIWNICKN */
1333         (iw_handler) NULL,                              /* -- hole -- */
1334         (iw_handler) NULL,                              /* -- hole -- */
1335         (iw_handler) ieee80211_ioctl_siwrate,           /* SIOCSIWRATE */
1336         (iw_handler) ieee80211_ioctl_giwrate,           /* SIOCGIWRATE */
1337         (iw_handler) ieee80211_ioctl_siwrts,            /* SIOCSIWRTS */
1338         (iw_handler) ieee80211_ioctl_giwrts,            /* SIOCGIWRTS */
1339         (iw_handler) ieee80211_ioctl_siwfrag,           /* SIOCSIWFRAG */
1340         (iw_handler) ieee80211_ioctl_giwfrag,           /* SIOCGIWFRAG */
1341         (iw_handler) NULL,                              /* SIOCSIWTXPOW */
1342         (iw_handler) ieee80211_ioctl_giwtxpower,        /* SIOCGIWTXPOW */
1343         (iw_handler) ieee80211_ioctl_siwretry,          /* SIOCSIWRETRY */
1344         (iw_handler) ieee80211_ioctl_giwretry,          /* SIOCGIWRETRY */
1345         (iw_handler) ieee80211_ioctl_siwencode,         /* SIOCSIWENCODE */
1346         (iw_handler) ieee80211_ioctl_giwencode,         /* SIOCGIWENCODE */
1347         (iw_handler) NULL,                              /* SIOCSIWPOWER */
1348         (iw_handler) NULL,                              /* SIOCGIWPOWER */
1349         (iw_handler) NULL,                              /* -- hole -- */
1350         (iw_handler) NULL,                              /* -- hole -- */
1351         (iw_handler) ieee80211_ioctl_siwgenie,          /* SIOCSIWGENIE */
1352         (iw_handler) NULL,                              /* SIOCGIWGENIE */
1353         (iw_handler) ieee80211_ioctl_siwauth,           /* SIOCSIWAUTH */
1354         (iw_handler) ieee80211_ioctl_giwauth,           /* SIOCGIWAUTH */
1355         (iw_handler) ieee80211_ioctl_siwencodeext,      /* SIOCSIWENCODEEXT */
1356         (iw_handler) NULL,                              /* SIOCGIWENCODEEXT */
1357         (iw_handler) NULL,                              /* SIOCSIWPMKSA */
1358         (iw_handler) NULL,                              /* -- hole -- */
1359 };
1360
1361 static const iw_handler ieee80211_private_handler[] =
1362 {                                                       /* SIOCIWFIRSTPRIV + */
1363         (iw_handler) ieee80211_ioctl_prism2_param,      /* 0 */
1364         (iw_handler) ieee80211_ioctl_get_prism2_param,  /* 1 */
1365 };
1366
1367 const struct iw_handler_def ieee80211_iw_handler_def =
1368 {
1369         .num_standard   = ARRAY_SIZE(ieee80211_handler),
1370         .num_private    = ARRAY_SIZE(ieee80211_private_handler),
1371         .num_private_args = ARRAY_SIZE(ieee80211_ioctl_priv),
1372         .standard       = (iw_handler *) ieee80211_handler,
1373         .private        = (iw_handler *) ieee80211_private_handler,
1374         .private_args   = (struct iw_priv_args *) ieee80211_ioctl_priv,
1375         .get_wireless_stats = ieee80211_get_wireless_stats,
1376 };